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sctp: import internal copy of usrsctp library

Browse source 
There are problems with global shared state and no API stability
guarantees, and we can't rely on distros shipping the fixes we
need. Both firefox and Chrome bundle their own copies too.

Imported from https://github.com/sctplab/usrsctp,
commit 547d3b46c64876c0336b9eef297fda58dbe1adaf
Date: Thu Jul 23 21:49:32 2020 +0200

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/870

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1465>
This commit is contained in:
Tim-Philipp Müller 2020-07-24 19:23:19 +01:00
parent fe3a0c2c90
commit f4538e24b6
70 changed files with 93498 additions and 0 deletions
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ext/sctp/usrsctp/usrsctplib/

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# Object files
*.o
*.ko
*.obj
*.elf
# Precompiled Headers
*.gch
*.pch
# Libraries
*.lib
*.a
*.la
*.lo
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
*.exe
*.out
*.app
*.i*86
*.x86_64
*.hex
# Debug files
*.dSYM
# Automake and make releated stuff
Makefile
Makefile.in
.deps
.libs
/autom4te.cache
/aclocal.m4
/compile
/configure
/depcomp
/install-sh
/missing
/stamp-h1
/config.guess
/config.log
/config.status
/config.sub
/libtool
/ltmain.sh
/m4
/usrsctp.pc
.dirstamp
# binaries
programs/chargen_server_upcall
programs/client
programs/client_upcall
programs/daytime_server
programs/daytime_server_upcall
programs/discard_server
programs/discard_server_upcall
programs/echo_server
programs/echo_server_upcall
programs/ekr_client
programs/ekr_loop
programs/ekr_loop_upcall
programs/ekr_peer
programs/ekr_server
programs/http_client
programs/http_client_upcall
programs/rtcweb
programs/st_client
programs/tsctp
programs/test_libmgmt
programs/test_timer
# callgrind
callgrind.out*
# cmake build
/build

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Copyright (c) 2015, Randall Stewart and Michael Tuexen
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of usrsctp nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# Project definition
project('usrsctplib', 'c',
version: '1.0.0',
default_options: ['c_std=c99'],
meson_version: '>=0.49.0')
# Set compiler warning flags
compiler = meson.get_compiler('c')
if compiler.get_argument_syntax() == 'msvc'
compiler_args = compiler.get_supported_arguments([
'/wd4100', # 'identifier' : unreferenced formal parameter
'/wd4127', # conditional expression is constant
'/wd4200', # nonstandard extension used : zero-sized array in struct/union
'/wd4214', # bit field types other than int
'/wd4706', # assignment within conditional expression
'/wd4245', # 'conversion' : conversion from 'type1' to 'type2', signed/unsigned mismatch
'/wd4389', # 'operator' : signed/unsigned mismatch
'/wd4702', # unreachable code
'/wd4701', # Potentially uninitialized local variable 'name' used
'/wd4244', # 'conversion' conversion from 'type1' to 'type2', possible loss of data
])
else
compiler_args = compiler.get_supported_arguments([
'-pedantic',
'-Wall',
'-Wextra',
'-Wfloat-equal',
'-Wshadow',
'-Wpointer-arith',
'-Winit-self',
'-Wno-unused-function',
'-Wno-unused-parameter',
'-Wno-unreachable-code',
'-Wstrict-prototypes',
])
endif
add_project_arguments(compiler_args, language: 'c')
# Configuration
compile_args = []
# Dependency: Threads
thread_dep = dependency('threads', required: true)
# Dependencies list
dependencies = [
thread_dep,
]
# Global settings
add_project_arguments([
'-D__Userspace__',
'-DSCTP_SIMPLE_ALLOCATOR',
'-DSCTP_PROCESS_LEVEL_LOCKS',
], language: 'c')
# OS-specific settings
system = host_machine.system()
if system in ['linux', 'android']
add_project_arguments([
'-D_GNU_SOURCE',
], language: 'c')
elif system == 'freebsd'
add_project_arguments(compiler.get_supported_arguments([
'-Wno-address-of-packed-member',
]), language: 'c')
elif system in ['darwin', 'ios']
add_project_arguments([
'-D__APPLE_USE_RFC_2292',
] + compiler.get_supported_arguments([
'-Wno-address-of-packed-member',
'-Wno-deprecated-declarations',
]), language: 'c')
elif system == 'windows'
dependencies += compiler.find_library('ws2_32', required: true)
dependencies += compiler.find_library('iphlpapi', required: true)
if compiler.get_id() == 'gcc'
add_project_arguments(compiler.get_supported_arguments([
'-Wno-format',
'-D_WIN32_WINNT=0x601', # Enables inet_ntop and friends
]), language: 'c')
endif
else
error('Unknown system: @0@'.format(system))
endif
# Feature: sys/queue
if compiler.has_header('sys/queue.h')
add_project_arguments('-DHAVE_SYS_QUEUE_H', language: 'c')
endif
# Feature: sys/socket, linux/ifaddr, linux/rtnetlink
if compiler.has_header('sys/socket.h')
if compiler.has_header('linux/if_addr.h')
add_project_arguments('-DHAVE_LINUX_IF_ADDR_H', language: 'c')
endif
if compiler.has_header('linux/rtnetlink.h')
add_project_arguments('-DHAVE_LINUX_RTNETLINK_H', language: 'c')
endif
endif
# Feature: ICMP
have_sys_types = compiler.has_header('sys/types.h')
have_netinet_in = compiler.has_header('netinet/in.h')
have_netinet_ip = compiler.has_header('netinet/ip.h')
have_netinet_ip_icmp = compiler.has_header('netinet/ip_icmp.h')
if have_sys_types and have_netinet_in and have_netinet_ip and have_netinet_ip_icmp
add_project_arguments('-DHAVE_NETINET_IP_ICMP_H', language: 'c')
endif
# Feature: stdatomic
if compiler.has_header('stdatomic.h')
add_project_arguments('-DHAVE_STDATOMIC_H', language: 'c')
endif
# Feature: sockaddr.sa_len
prefix = '''
#include <sys/types.h>
#include <sys/socket.h>
'''
have_sa_len = compiler.has_member('struct sockaddr', 'sa_len', prefix: prefix)
if have_sa_len
add_project_arguments('-DHAVE_SA_LEN', language: 'c')
endif
# Feature: sockaddr_in.sin_len / sockaddr_in6.sin6_len / sockaddr_conn.sconn_len
prefix = '''
#include <sys/types.h>
#include <netinet/in.h>
'''
have_sin_len = compiler.has_member('struct sockaddr_in', 'sin_len', prefix: prefix)
if have_sin_len
add_project_arguments('-DHAVE_SIN_LEN', language: 'c')
endif
have_sin6_len = compiler.has_member('struct sockaddr_in6', 'sin6_len', prefix: prefix)
if have_sin6_len
add_project_arguments('-DHAVE_SIN6_LEN', language: 'c')
endif
have_sconn_len = compiler.has_member('struct sockaddr_conn', 'sconn_len', prefix: '#include "usrsctp.h"', include_directories: include_directories('usrsctplib'))
if have_sconn_len
add_project_arguments('-DHAVE_SCONN_LEN', language: 'c')
endif
# Options
if get_option('sctp_invariants')
add_project_arguments('-DINVARIANTS', language: 'c')
endif
if get_option('sctp_debug')
add_project_arguments('-DSCTP_DEBUG', language: 'c')
compile_args += '-DSCTP_DEBUG'
endif
if get_option('sctp_inet')
add_project_arguments('-DINET', language: 'c')
endif
if get_option('sctp_inet6')
add_project_arguments('-DINET6', language: 'c')
endif
# Library
subdir('usrsctplib')
# Build library
if compiler.get_id() == 'msvc' and get_option('default_library') == 'shared'
# Needed by usrsctp_def
find_program('dumpbin')
usrsctp_static = static_library('usrsctp-static', sources,
dependencies: dependencies,
include_directories: include_dirs)
usrsctp_def = custom_target('usrsctp.def',
command: [find_program('gen-def.py'), '@INPUT@'],
input: usrsctp_static,
output: 'usrsctp.def',
capture: true)
usrsctp = shared_library('usrsctp',
link_whole: usrsctp_static,
dependencies: dependencies,
vs_module_defs: usrsctp_def,
install: true,
version: meson.project_version())
else
usrsctp = library('usrsctp', sources,
dependencies: dependencies,
include_directories: include_dirs,
install: true,
version: meson.project_version(),
c_args: '-U__APPLE__')
endif
# Declare dependency
usrsctp_dep = declare_dependency(
compile_args: compile_args,
include_directories: include_dirs,
link_with: usrsctp)
# Generate pkg-config file
pkg = import('pkgconfig')
pkg.generate(usrsctp,
name: 'usrsctp',
description: 'A portable SCTP userland stack',
url: 'https://github.com/sctplab/usrsctp',
extra_cflags: compile_args)
# Programs (optional)
if get_option('sctp_build_programs')
subdir('programs')
# Build executables
foreach name, sources : programs
executable(
name,
programs_helper_sources + sources,
dependencies: dependencies,
link_with: usrsctp,
include_directories: include_dirs)
endforeach
endif

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option('sctp_invariants', type: 'boolean', value: false,
description: 'Add runtime checks')
option('sctp_debug', type: 'boolean', value: false,
description: 'Provide debug information')
option('sctp_inet', type: 'boolean', value: true,
description: 'Support IPv4')
option('sctp_inet6', type: 'boolean', value: true,
description: 'Support IPv6')
option('sctp_build_programs', type: 'boolean', value: true,
description: 'Build example programs')

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#
# Copyright (C) 2011-2012 Michael Tuexen
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the project nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
AUTOMAKE_OPTIONS = subdir-objects
EXTRA_DIST = Makefile.nmake
lib_LTLIBRARIES = libusrsctp.la
libusrsctp_la_SOURCES = user_atomic.h \
user_environment.c user_environment.h \
user_inpcb.h \
user_ip_icmp.h \
user_ip6_var.h \
user_malloc.h \
user_mbuf.c \
user_mbuf.h \
user_queue.h \
user_recv_thread.c user_recv_thread.h \
user_route.h \
user_socket.c \
user_socketvar.h \
user_uma.h \
netinet/sctp.h \
netinet/sctp_asconf.c netinet/sctp_asconf.h \
netinet/sctp_auth.c netinet/sctp_auth.h \
netinet/sctp_bsd_addr.c netinet/sctp_bsd_addr.h \
netinet/sctp_callout.c netinet/sctp_callout.h \
netinet/sctp_cc_functions.c \
netinet/sctp_constants.h \
netinet/sctp_crc32.c netinet/sctp_crc32.h \
netinet/sctp_header.h \
netinet/sctp_indata.c netinet/sctp_indata.h \
netinet/sctp_input.c netinet/sctp_input.h \
netinet/sctp_lock_userspace.h \
netinet/sctp_os.h \
netinet/sctp_os_userspace.h \
netinet/sctp_output.c netinet/sctp_output.h \
netinet/sctp_pcb.c netinet/sctp_pcb.h \
netinet/sctp_peeloff.c netinet/sctp_peeloff.h \
netinet/sctp_process_lock.h \
netinet/sctp_sha1.c netinet/sctp_sha1.h \
netinet/sctp_ss_functions.c \
netinet/sctp_structs.h \
netinet/sctp_sysctl.c netinet/sctp_sysctl.h \
netinet/sctp_userspace.c \
netinet/sctp_timer.c netinet/sctp_timer.h \
netinet/sctp_uio.h \
netinet/sctp_usrreq.c \
netinet/sctp_var.h \
netinet/sctputil.c netinet/sctputil.h \
netinet6/sctp6_var.h \
netinet6/sctp6_usrreq.c
libusrsctp_la_CFLAGS = $(LIBCFLAGS)
libusrsctp_la_LDFLAGS = -version-info 1:0:0
include_HEADERS = usrsctp.h

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# Includes
include_dirs = include_directories(
'.',
'netinet',
'netinet6',
)
# Sources
sources = files([
'user_environment.c',
'user_mbuf.c',
'user_recv_thread.c',
'user_socket.c',
])
subdir('netinet')
subdir('netinet6')
# Install usrsctp.h
install_headers('usrsctp.h')

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sources += files([
'sctp_asconf.c',
'sctp_auth.c',
'sctp_bsd_addr.c',
'sctp_callout.c',
'sctp_cc_functions.c',
'sctp_crc32.c',
'sctp_indata.c',
'sctp_input.c',
'sctp_output.c',
'sctp_pcb.c',
'sctp_peeloff.c',
'sctp_sha1.c',
'sctp_ss_functions.c',
'sctp_sysctl.c',
'sctp_timer.c',
'sctp_userspace.c',
'sctp_usrreq.c',
'sctputil.c',
])

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ext/sctp/usrsctp/usrsctplib/netinet/sctp.h Normal file
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp.h 356357 2020-01-04 20:33:12Z tuexen $");
#endif
#ifndef _NETINET_SCTP_H_
#define _NETINET_SCTP_H_
#if defined(__APPLE__) || defined(__linux__)
#include <stdint.h>
#endif
#include <sys/types.h>
#if !defined(_WIN32)
#define SCTP_PACKED __attribute__((packed))
#else
#pragma pack (push, 1)
#define SCTP_PACKED
#endif
/*
* SCTP protocol - RFC4960.
*/
struct sctphdr {
uint16_t src_port; /* source port */
uint16_t dest_port; /* destination port */
uint32_t v_tag; /* verification tag of packet */
uint32_t checksum; /* CRC32C checksum */
/* chunks follow... */
} SCTP_PACKED;
/*
* SCTP Chunks
*/
struct sctp_chunkhdr {
uint8_t chunk_type; /* chunk type */
uint8_t chunk_flags; /* chunk flags */
uint16_t chunk_length; /* chunk length */
/* optional params follow */
} SCTP_PACKED;
/*
* SCTP chunk parameters
*/
struct sctp_paramhdr {
uint16_t param_type; /* parameter type */
uint16_t param_length; /* parameter length */
} SCTP_PACKED;
/*
* user socket options: socket API defined
*/
/*
* read-write options
*/
#define SCTP_RTOINFO 0x00000001
#define SCTP_ASSOCINFO 0x00000002
#define SCTP_INITMSG 0x00000003
#define SCTP_NODELAY 0x00000004
#define SCTP_AUTOCLOSE 0x00000005
#define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006
#define SCTP_PRIMARY_ADDR 0x00000007
#define SCTP_ADAPTATION_LAYER 0x00000008
/* same as above */
#define SCTP_ADAPTION_LAYER 0x00000008
#define SCTP_DISABLE_FRAGMENTS 0x00000009
#define SCTP_PEER_ADDR_PARAMS 0x0000000a
#define SCTP_DEFAULT_SEND_PARAM 0x0000000b
/* ancillary data/notification interest options */
#define SCTP_EVENTS 0x0000000c /* deprecated */
/* Without this applied we will give V4 and V6 addresses on a V6 socket */
#define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d
#define SCTP_MAXSEG 0x0000000e
#define SCTP_DELAYED_SACK 0x0000000f
#define SCTP_FRAGMENT_INTERLEAVE 0x00000010
#define SCTP_PARTIAL_DELIVERY_POINT 0x00000011
/* authentication support */
#define SCTP_AUTH_CHUNK 0x00000012
#define SCTP_AUTH_KEY 0x00000013
#define SCTP_HMAC_IDENT 0x00000014
#define SCTP_AUTH_ACTIVE_KEY 0x00000015
#define SCTP_AUTH_DELETE_KEY 0x00000016
#define SCTP_USE_EXT_RCVINFO 0x00000017
#define SCTP_AUTO_ASCONF 0x00000018 /* rw */
#define SCTP_MAXBURST 0x00000019 /* rw */
#define SCTP_MAX_BURST 0x00000019 /* rw */
/* assoc level context */
#define SCTP_CONTEXT 0x0000001a /* rw */
/* explicit EOR signalling */
#define SCTP_EXPLICIT_EOR 0x0000001b
#define SCTP_REUSE_PORT 0x0000001c /* rw */
#define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d
#define SCTP_EVENT 0x0000001e
#define SCTP_RECVRCVINFO 0x0000001f
#define SCTP_RECVNXTINFO 0x00000020
#define SCTP_DEFAULT_SNDINFO 0x00000021
#define SCTP_DEFAULT_PRINFO 0x00000022
#define SCTP_PEER_ADDR_THLDS 0x00000023
#define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024
#define SCTP_ECN_SUPPORTED 0x00000025
#define SCTP_PR_SUPPORTED 0x00000026
#define SCTP_AUTH_SUPPORTED 0x00000027
#define SCTP_ASCONF_SUPPORTED 0x00000028
#define SCTP_RECONFIG_SUPPORTED 0x00000029
#define SCTP_NRSACK_SUPPORTED 0x00000030
#define SCTP_PKTDROP_SUPPORTED 0x00000031
#define SCTP_MAX_CWND 0x00000032
/*
* read-only options
*/
#define SCTP_STATUS 0x00000100
#define SCTP_GET_PEER_ADDR_INFO 0x00000101
/* authentication support */
#define SCTP_PEER_AUTH_CHUNKS 0x00000102
#define SCTP_LOCAL_AUTH_CHUNKS 0x00000103
#define SCTP_GET_ASSOC_NUMBER 0x00000104 /* ro */
#define SCTP_GET_ASSOC_ID_LIST 0x00000105 /* ro */
#define SCTP_TIMEOUTS 0x00000106
#define SCTP_PR_STREAM_STATUS 0x00000107
#define SCTP_PR_ASSOC_STATUS 0x00000108
/*
* user socket options: BSD implementation specific
*/
/*
* Blocking I/O is enabled on any TCP type socket by default. For the UDP
* model if this is turned on then the socket buffer is shared for send
* resources amongst all associations. The default for the UDP model is that
* is SS_NBIO is set. Which means all associations have a separate send
* limit BUT they will NOT ever BLOCK instead you will get an error back
* EAGAIN if you try to send too much. If you want the blocking semantics you
* set this option at the cost of sharing one socket send buffer size amongst
* all associations. Peeled off sockets turn this option off and block. But
* since both TCP and peeled off sockets have only one assoc per socket this
* is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
* model OR peeled off UDP model, but we do allow you to do so. You just use
* the normal syscall to toggle SS_NBIO the way you want.
*
* Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
* field.
*/
#define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct sctp_assoc_value */
#define SCTP_RESET_STREAMS 0x00000901 /* struct sctp_reset_streams */
#define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */
#define SCTP_ADD_STREAMS 0x00000903 /* struct sctp_add_streams */
/* For enable stream reset */
#define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001
#define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002
#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004
#define SCTP_ENABLE_VALUE_MASK 0x00000007
/* For reset streams */
#define SCTP_STREAM_RESET_INCOMING 0x00000001
#define SCTP_STREAM_RESET_OUTGOING 0x00000002
/* here on down are more implementation specific */
#define SCTP_SET_DEBUG_LEVEL 0x00001005
#define SCTP_CLR_STAT_LOG 0x00001007
/* CMT ON/OFF socket option */
#define SCTP_CMT_ON_OFF 0x00001200
#define SCTP_CMT_USE_DAC 0x00001201
/* JRS - Pluggable Congestion Control Socket option */
#define SCTP_PLUGGABLE_CC 0x00001202
/* RS - Pluggable Stream Scheduling Socket option */
#define SCTP_PLUGGABLE_SS 0x00001203
#define SCTP_SS_VALUE 0x00001204
#define SCTP_CC_OPTION 0x00001205 /* Options for CC modules */
/* For I-DATA */
#define SCTP_INTERLEAVING_SUPPORTED 0x00001206
/* read only */
#define SCTP_GET_SNDBUF_USE 0x00001101
#define SCTP_GET_STAT_LOG 0x00001103
#define SCTP_PCB_STATUS 0x00001104
#define SCTP_GET_NONCE_VALUES 0x00001105
/* Special hook for dynamically setting primary for all assoc's,
* this is a write only option that requires root privilege.
*/
#define SCTP_SET_DYNAMIC_PRIMARY 0x00002001
/* VRF (virtual router feature) and multi-VRF support
* options. VRF's provide splits within a router
* that give the views of multiple routers. A
* standard host, without VRF support, is just
* a single VRF. If VRF's are supported then
* the transport must be VRF aware. This means
* that every socket call coming in must be directed
* within the endpoint to one of the VRF's it belongs
* to. The endpoint, before binding, may select
* the "default" VRF it is in by using a set socket
* option with SCTP_VRF_ID. This will also
* get propagated to the default VRF. Once the
* endpoint binds an address then it CANNOT add
* additional VRF's to become a Multi-VRF endpoint.
*
* Before BINDING additional VRF's can be added with
* the SCTP_ADD_VRF_ID call or deleted with
* SCTP_DEL_VRF_ID.
*
* Associations are ALWAYS contained inside a single
* VRF. They cannot reside in two (or more) VRF's. Incoming
* packets, assuming the router is VRF aware, can always
* tell us what VRF they arrived on. A host not supporting
* any VRF's will find that the packets always arrived on the
* single VRF that the host has.
*
*/
#define SCTP_VRF_ID 0x00003001
#define SCTP_ADD_VRF_ID 0x00003002
#define SCTP_GET_VRF_IDS 0x00003003
#define SCTP_GET_ASOC_VRF 0x00003004
#define SCTP_DEL_VRF_ID 0x00003005
/*
* If you enable packet logging you can get
* a poor mans ethereal output in binary
* form. Note this is a compile option to
* the kernel, SCTP_PACKET_LOGGING, and
* without it in your kernel you
* will get a EOPNOTSUPP
*/
#define SCTP_GET_PACKET_LOG 0x00004001
/*
* hidden implementation specific options these are NOT user visible (should
* move out of sctp.h)
*/
/* sctp_bindx() flags as hidden socket options */
#define SCTP_BINDX_ADD_ADDR 0x00008001
#define SCTP_BINDX_REM_ADDR 0x00008002
/* Hidden socket option that gets the addresses */
#define SCTP_GET_PEER_ADDRESSES 0x00008003
#define SCTP_GET_LOCAL_ADDRESSES 0x00008004
/* return the total count in bytes needed to hold all local addresses bound */
#define SCTP_GET_LOCAL_ADDR_SIZE 0x00008005
/* Return the total count in bytes needed to hold the remote address */
#define SCTP_GET_REMOTE_ADDR_SIZE 0x00008006
/* hidden option for connectx */
#define SCTP_CONNECT_X 0x00008007
/* hidden option for connectx_delayed, part of sendx */
#define SCTP_CONNECT_X_DELAYED 0x00008008
#define SCTP_CONNECT_X_COMPLETE 0x00008009
/* hidden socket option based sctp_peeloff */
#define SCTP_PEELOFF 0x0000800a
/* the real worker for sctp_getaddrlen() */
#define SCTP_GET_ADDR_LEN 0x0000800b
#if defined(__APPLE__) && !defined(__Userspace__)
/* temporary workaround for Apple listen() issue, no args used */
#define SCTP_LISTEN_FIX 0x0000800c
#endif
#if defined(_WIN32) && !defined(__Userspace__)
/* workaround for Cygwin on Windows: returns the SOCKET handle */
#define SCTP_GET_HANDLE 0x0000800d
#endif
/* Debug things that need to be purged */
#define SCTP_SET_INITIAL_DBG_SEQ 0x00009f00
/* JRS - Supported congestion control modules for pluggable
* congestion control
*/
/* Standard TCP Congestion Control */
#define SCTP_CC_RFC2581 0x00000000
/* High Speed TCP Congestion Control (Floyd) */
#define SCTP_CC_HSTCP 0x00000001
/* HTCP Congestion Control */
#define SCTP_CC_HTCP 0x00000002
/* RTCC Congestion Control - RFC2581 plus */
#define SCTP_CC_RTCC 0x00000003
#define SCTP_CC_OPT_RTCC_SETMODE 0x00002000
#define SCTP_CC_OPT_USE_DCCC_ECN 0x00002001
#define SCTP_CC_OPT_STEADY_STEP 0x00002002
#define SCTP_CMT_OFF 0
#define SCTP_CMT_BASE 1
#define SCTP_CMT_RPV1 2
#define SCTP_CMT_RPV2 3
#define SCTP_CMT_MPTCP 4
#define SCTP_CMT_MAX SCTP_CMT_MPTCP
/* RS - Supported stream scheduling modules for pluggable
* stream scheduling
*/
/* Default simple round-robin */
#define SCTP_SS_DEFAULT 0x00000000
/* Real round-robin */
#define SCTP_SS_ROUND_ROBIN 0x00000001
/* Real round-robin per packet */
#define SCTP_SS_ROUND_ROBIN_PACKET 0x00000002
/* Priority */
#define SCTP_SS_PRIORITY 0x00000003
/* Fair Bandwidth */
#define SCTP_SS_FAIR_BANDWITH 0x00000004
/* First-come, first-serve */
#define SCTP_SS_FIRST_COME 0x00000005
/* fragment interleave constants
* setting must be one of these or
* EINVAL returned.
*/
#define SCTP_FRAG_LEVEL_0 0x00000000
#define SCTP_FRAG_LEVEL_1 0x00000001
#define SCTP_FRAG_LEVEL_2 0x00000002
/*
* user state values
*/
#define SCTP_CLOSED 0x0000
#define SCTP_BOUND 0x1000
#define SCTP_LISTEN 0x2000
#define SCTP_COOKIE_WAIT 0x0002
#define SCTP_COOKIE_ECHOED 0x0004
#define SCTP_ESTABLISHED 0x0008
#define SCTP_SHUTDOWN_SENT 0x0010
#define SCTP_SHUTDOWN_RECEIVED 0x0020
#define SCTP_SHUTDOWN_ACK_SENT 0x0040
#define SCTP_SHUTDOWN_PENDING 0x0080
/*
* SCTP operational error codes (user visible)
*/
#define SCTP_CAUSE_NO_ERROR 0x0000
#define SCTP_CAUSE_INVALID_STREAM 0x0001
#define SCTP_CAUSE_MISSING_PARAM 0x0002
#define SCTP_CAUSE_STALE_COOKIE 0x0003
#define SCTP_CAUSE_OUT_OF_RESC 0x0004
#define SCTP_CAUSE_UNRESOLVABLE_ADDR 0x0005
#define SCTP_CAUSE_UNRECOG_CHUNK 0x0006
#define SCTP_CAUSE_INVALID_PARAM 0x0007
#define SCTP_CAUSE_UNRECOG_PARAM 0x0008
#define SCTP_CAUSE_NO_USER_DATA 0x0009
#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN 0x000a
#define SCTP_CAUSE_RESTART_W_NEWADDR 0x000b
#define SCTP_CAUSE_USER_INITIATED_ABT 0x000c
#define SCTP_CAUSE_PROTOCOL_VIOLATION 0x000d
/* Error causes from RFC5061 */
#define SCTP_CAUSE_DELETING_LAST_ADDR 0x00a0
#define SCTP_CAUSE_RESOURCE_SHORTAGE 0x00a1
#define SCTP_CAUSE_DELETING_SRC_ADDR 0x00a2
#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK 0x00a3
#define SCTP_CAUSE_REQUEST_REFUSED 0x00a4
/* Error causes from nat-draft */
#define SCTP_CAUSE_NAT_COLLIDING_STATE 0x00b0
#define SCTP_CAUSE_NAT_MISSING_STATE 0x00b1
/* Error causes from RFC4895 */
#define SCTP_CAUSE_UNSUPPORTED_HMACID 0x0105
/*
* error cause parameters (user visible)
*/
struct sctp_gen_error_cause {
uint16_t code;
uint16_t length;
uint8_t info[];
} SCTP_PACKED;
struct sctp_error_cause {
uint16_t code;
uint16_t length;
/* optional cause-specific info may follow */
} SCTP_PACKED;
struct sctp_error_invalid_stream {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_INVALID_STREAM */
uint16_t stream_id; /* stream id of the DATA in error */
uint16_t reserved;
} SCTP_PACKED;
struct sctp_error_missing_param {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_MISSING_PARAM */
uint32_t num_missing_params; /* number of missing parameters */
uint16_t type[];
} SCTP_PACKED;
struct sctp_error_stale_cookie {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_STALE_COOKIE */
uint32_t stale_time; /* time in usec of staleness */
} SCTP_PACKED;
struct sctp_error_out_of_resource {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_OUT_OF_RESOURCES */
} SCTP_PACKED;
struct sctp_error_unresolv_addr {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNRESOLVABLE_ADDR */
} SCTP_PACKED;
struct sctp_error_unrecognized_chunk {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNRECOG_CHUNK */
struct sctp_chunkhdr ch;/* header from chunk in error */
} SCTP_PACKED;
struct sctp_error_no_user_data {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_NO_USER_DATA */
uint32_t tsn; /* TSN of the empty data chunk */
} SCTP_PACKED;
struct sctp_error_auth_invalid_hmac {
struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNSUPPORTED_HMACID */
uint16_t hmac_id;
} SCTP_PACKED;
/*
* Main SCTP chunk types we place these here so natd and f/w's in user land
* can find them.
*/
/************0x00 series ***********/
#define SCTP_DATA 0x00
#define SCTP_INITIATION 0x01
#define SCTP_INITIATION_ACK 0x02
#define SCTP_SELECTIVE_ACK 0x03
#define SCTP_HEARTBEAT_REQUEST 0x04
#define SCTP_HEARTBEAT_ACK 0x05
#define SCTP_ABORT_ASSOCIATION 0x06
#define SCTP_SHUTDOWN 0x07
#define SCTP_SHUTDOWN_ACK 0x08
#define SCTP_OPERATION_ERROR 0x09
#define SCTP_COOKIE_ECHO 0x0a
#define SCTP_COOKIE_ACK 0x0b
#define SCTP_ECN_ECHO 0x0c
#define SCTP_ECN_CWR 0x0d
#define SCTP_SHUTDOWN_COMPLETE 0x0e
/* RFC4895 */
#define SCTP_AUTHENTICATION 0x0f
/* EY nr_sack chunk id*/
#define SCTP_NR_SELECTIVE_ACK 0x10
/************0x40 series ***********/
#define SCTP_IDATA 0x40
/************0x80 series ***********/
/* RFC5061 */
#define SCTP_ASCONF_ACK 0x80
/* draft-ietf-stewart-pktdrpsctp */
#define SCTP_PACKET_DROPPED 0x81
/* draft-ietf-stewart-strreset-xxx */
#define SCTP_STREAM_RESET 0x82
/* RFC4820 */
#define SCTP_PAD_CHUNK 0x84
/************0xc0 series ***********/
/* RFC3758 */
#define SCTP_FORWARD_CUM_TSN 0xc0
/* RFC5061 */
#define SCTP_ASCONF 0xc1
#define SCTP_IFORWARD_CUM_TSN 0xc2
/* ABORT and SHUTDOWN COMPLETE FLAG */
#define SCTP_HAD_NO_TCB 0x01
/* Packet dropped flags */
#define SCTP_FROM_MIDDLE_BOX SCTP_HAD_NO_TCB
#define SCTP_BADCRC 0x02
#define SCTP_PACKET_TRUNCATED 0x04
/* Flag for ECN -CWR */
#define SCTP_CWR_REDUCE_OVERRIDE 0x01
#define SCTP_CWR_IN_SAME_WINDOW 0x02
#define SCTP_SAT_NETWORK_MIN 400 /* min ms for RTT to set satellite
* time */
#define SCTP_SAT_NETWORK_BURST_INCR 2 /* how many times to multiply maxburst
* in sat */
/* Data Chuck Specific Flags */
#define SCTP_DATA_FRAG_MASK 0x03
#define SCTP_DATA_MIDDLE_FRAG 0x00
#define SCTP_DATA_LAST_FRAG 0x01
#define SCTP_DATA_FIRST_FRAG 0x02
#define SCTP_DATA_NOT_FRAG 0x03
#define SCTP_DATA_UNORDERED 0x04
#define SCTP_DATA_SACK_IMMEDIATELY 0x08
/* ECN Nonce: SACK Chunk Specific Flags */
#define SCTP_SACK_NONCE_SUM 0x01
/* CMT DAC algorithm SACK flag */
#define SCTP_SACK_CMT_DAC 0x80
/*
* PCB flags (in sctp_flags bitmask).
* Note the features and flags are meant
* for use by netstat.
*/
#define SCTP_PCB_FLAGS_UDPTYPE 0x00000001
#define SCTP_PCB_FLAGS_TCPTYPE 0x00000002
#define SCTP_PCB_FLAGS_BOUNDALL 0x00000004
#define SCTP_PCB_FLAGS_ACCEPTING 0x00000008
#define SCTP_PCB_FLAGS_UNBOUND 0x00000010
#define SCTP_PCB_FLAGS_SND_ITERATOR_UP 0x00000020
#define SCTP_PCB_FLAGS_CLOSE_IP 0x00040000
#define SCTP_PCB_FLAGS_WAS_CONNECTED 0x00080000
#define SCTP_PCB_FLAGS_WAS_ABORTED 0x00100000
/* TCP model support */
#define SCTP_PCB_FLAGS_CONNECTED 0x00200000
#define SCTP_PCB_FLAGS_IN_TCPPOOL 0x00400000
#define SCTP_PCB_FLAGS_DONT_WAKE 0x00800000
#define SCTP_PCB_FLAGS_WAKEOUTPUT 0x01000000
#define SCTP_PCB_FLAGS_WAKEINPUT 0x02000000
#define SCTP_PCB_FLAGS_BOUND_V6 0x04000000
#define SCTP_PCB_FLAGS_BLOCKING_IO 0x08000000
#define SCTP_PCB_FLAGS_SOCKET_GONE 0x10000000
#define SCTP_PCB_FLAGS_SOCKET_ALLGONE 0x20000000
#define SCTP_PCB_FLAGS_SOCKET_CANT_READ 0x40000000
#if defined(__Userspace__)
#define SCTP_PCB_FLAGS_BOUND_CONN 0x80000000
/* flags to copy to new PCB */
#define SCTP_PCB_COPY_FLAGS (SCTP_PCB_FLAGS_BOUNDALL|\
SCTP_PCB_FLAGS_WAKEINPUT|\
SCTP_PCB_FLAGS_BOUND_V6|\
SCTP_PCB_FLAGS_BOUND_CONN)
#else
/* flags to copy to new PCB */
#define SCTP_PCB_COPY_FLAGS (SCTP_PCB_FLAGS_BOUNDALL|\
SCTP_PCB_FLAGS_WAKEINPUT|\
SCTP_PCB_FLAGS_BOUND_V6)
#endif
/*
* PCB Features (in sctp_features bitmask)
*/
#define SCTP_PCB_FLAGS_DO_NOT_PMTUD 0x0000000000000001
#define SCTP_PCB_FLAGS_EXT_RCVINFO 0x0000000000000002 /* deprecated */
#define SCTP_PCB_FLAGS_DONOT_HEARTBEAT 0x0000000000000004
#define SCTP_PCB_FLAGS_FRAG_INTERLEAVE 0x0000000000000008
#define SCTP_PCB_FLAGS_INTERLEAVE_STRMS 0x0000000000000010
#define SCTP_PCB_FLAGS_DO_ASCONF 0x0000000000000020
#define SCTP_PCB_FLAGS_AUTO_ASCONF 0x0000000000000040
/* socket options */
#define SCTP_PCB_FLAGS_NODELAY 0x0000000000000100
#define SCTP_PCB_FLAGS_AUTOCLOSE 0x0000000000000200
#define SCTP_PCB_FLAGS_RECVDATAIOEVNT 0x0000000000000400 /* deprecated */
#define SCTP_PCB_FLAGS_RECVASSOCEVNT 0x0000000000000800
#define SCTP_PCB_FLAGS_RECVPADDREVNT 0x0000000000001000
#define SCTP_PCB_FLAGS_RECVPEERERR 0x0000000000002000
#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT 0x0000000000004000 /* deprecated */
#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT 0x0000000000008000
#define SCTP_PCB_FLAGS_ADAPTATIONEVNT 0x0000000000010000
#define SCTP_PCB_FLAGS_PDAPIEVNT 0x0000000000020000
#define SCTP_PCB_FLAGS_AUTHEVNT 0x0000000000040000
#define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x0000000000080000
#define SCTP_PCB_FLAGS_NO_FRAGMENT 0x0000000000100000
#define SCTP_PCB_FLAGS_EXPLICIT_EOR 0x0000000000400000
#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4 0x0000000000800000
#define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS 0x0000000001000000
#define SCTP_PCB_FLAGS_PORTREUSE 0x0000000002000000
#define SCTP_PCB_FLAGS_DRYEVNT 0x0000000004000000
#define SCTP_PCB_FLAGS_RECVRCVINFO 0x0000000008000000
#define SCTP_PCB_FLAGS_RECVNXTINFO 0x0000000010000000
#define SCTP_PCB_FLAGS_ASSOC_RESETEVNT 0x0000000020000000
#define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
#define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
/*-
* mobility_features parameters (by micchie).Note
* these features are applied against the
* sctp_mobility_features flags.. not the sctp_features
* flags.
*/
#define SCTP_MOBILITY_BASE 0x00000001
#define SCTP_MOBILITY_FASTHANDOFF 0x00000002
#define SCTP_MOBILITY_PRIM_DELETED 0x00000004
/* Smallest PMTU allowed when disabling PMTU discovery */
#define SCTP_SMALLEST_PMTU 512
/* Largest PMTU allowed when disabling PMTU discovery */
#define SCTP_LARGEST_PMTU 65536
#if defined(_WIN32)
#pragma pack(pop)
#endif
#undef SCTP_PACKED
#include <netinet/sctp_uio.h>
/* This dictates the size of the packet
* collection buffer. This only applies
* if SCTP_PACKET_LOGGING is enabled in
* your config.
*/
#define SCTP_PACKET_LOG_SIZE 65536
/* Maximum delays and such a user can set for options that
* take ms.
*/
#define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
#define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */
#define SCTP_MAX_COOKIE_LIFE 3600000 /* 1 hour in ms */
/* Types of logging/KTR tracing that can be enabled via the
* sysctl net.inet.sctp.sctp_logging. You must also enable
* SUBSYS tracing.
* Note that you must have the SCTP option in the kernel
* to enable these as well.
*/
#define SCTP_BLK_LOGGING_ENABLE 0x00000001
#define SCTP_CWND_MONITOR_ENABLE 0x00000002
#define SCTP_CWND_LOGGING_ENABLE 0x00000004
#define SCTP_FLIGHT_LOGGING_ENABLE 0x00000020
#define SCTP_FR_LOGGING_ENABLE 0x00000040
#define SCTP_LOCK_LOGGING_ENABLE 0x00000080
#define SCTP_MAP_LOGGING_ENABLE 0x00000100
#define SCTP_MBCNT_LOGGING_ENABLE 0x00000200
#define SCTP_MBUF_LOGGING_ENABLE 0x00000400
#define SCTP_NAGLE_LOGGING_ENABLE 0x00000800
#define SCTP_RECV_RWND_LOGGING_ENABLE 0x00001000
#define SCTP_RTTVAR_LOGGING_ENABLE 0x00002000
#define SCTP_SACK_LOGGING_ENABLE 0x00004000
#define SCTP_SACK_RWND_LOGGING_ENABLE 0x00008000
#define SCTP_SB_LOGGING_ENABLE 0x00010000
#define SCTP_STR_LOGGING_ENABLE 0x00020000
#define SCTP_WAKE_LOGGING_ENABLE 0x00040000
#define SCTP_LOG_MAXBURST_ENABLE 0x00080000
#define SCTP_LOG_RWND_ENABLE 0x00100000
#define SCTP_LOG_SACK_ARRIVALS_ENABLE 0x00200000
#define SCTP_LTRACE_CHUNK_ENABLE 0x00400000
#define SCTP_LTRACE_ERROR_ENABLE 0x00800000
#define SCTP_LAST_PACKET_TRACING 0x01000000
#define SCTP_THRESHOLD_LOGGING 0x02000000
#define SCTP_LOG_AT_SEND_2_SCTP 0x04000000
#define SCTP_LOG_AT_SEND_2_OUTQ 0x08000000
#define SCTP_LOG_TRY_ADVANCE 0x10000000
#endif /* !_NETINET_SCTP_H_ */

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_asconf.h 362377 2020-06-19 12:35:29Z tuexen $");
#endif
#ifndef _NETINET_SCTP_ASCONF_H_
#define _NETINET_SCTP_ASCONF_H_
#if defined(_KERNEL) || defined(__Userspace__)
/*
* function prototypes
*/
extern void sctp_asconf_cleanup(struct sctp_tcb *);
extern struct mbuf *sctp_compose_asconf(struct sctp_tcb *, int *, int);
extern void
sctp_handle_asconf(struct mbuf *, unsigned int, struct sockaddr *,
struct sctp_asconf_chunk *, struct sctp_tcb *, int);
extern void
sctp_handle_asconf_ack(struct mbuf *, int, struct sctp_asconf_ack_chunk *,
struct sctp_tcb *, struct sctp_nets *, int *);
extern uint32_t
sctp_addr_mgmt_ep_sa(struct sctp_inpcb *, struct sockaddr *, uint32_t,
uint32_t);
extern int sctp_asconf_iterator_ep(struct sctp_inpcb *inp, void *ptr,
uint32_t val);
extern void sctp_asconf_iterator_stcb(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
void *ptr, uint32_t type);
extern void sctp_asconf_iterator_end(void *ptr, uint32_t val);
extern int32_t
sctp_set_primary_ip_address_sa(struct sctp_tcb *,
struct sockaddr *);
extern void
sctp_check_address_list(struct sctp_tcb *, struct mbuf *, int, int,
struct sockaddr *, uint16_t, uint16_t, uint16_t, uint16_t);
extern void
sctp_assoc_immediate_retrans(struct sctp_tcb *, struct sctp_nets *);
#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Userspace__)
extern void
sctp_net_immediate_retrans(struct sctp_tcb *, struct sctp_nets *);
#endif
extern void
sctp_asconf_send_nat_state_update(struct sctp_tcb *stcb,
struct sctp_nets *net);
extern int
sctp_is_addr_pending(struct sctp_tcb *, struct sctp_ifa *);
#endif /* _KERNEL */
#endif /* !_NETINET_SCTP_ASCONF_H_ */

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_auth.h 338749 2018-09-18 10:53:07Z tuexen $");
#endif
#ifndef _NETINET_SCTP_AUTH_H_
#define _NETINET_SCTP_AUTH_H_
#include <netinet/sctp_os.h>
/* digest lengths */
#define SCTP_AUTH_DIGEST_LEN_SHA1 20
#define SCTP_AUTH_DIGEST_LEN_SHA256 32
#define SCTP_AUTH_DIGEST_LEN_MAX SCTP_AUTH_DIGEST_LEN_SHA256
/* random sizes */
#define SCTP_AUTH_RANDOM_SIZE_DEFAULT 32
#define SCTP_AUTH_RANDOM_SIZE_REQUIRED 32
/* union of all supported HMAC algorithm contexts */
typedef union sctp_hash_context {
SCTP_SHA1_CTX sha1;
#if defined(SCTP_SUPPORT_HMAC_SHA256)
SCTP_SHA256_CTX sha256;
#endif
} sctp_hash_context_t;
typedef struct sctp_key {
uint32_t keylen;
uint8_t key[];
} sctp_key_t;
typedef struct sctp_shared_key {
LIST_ENTRY(sctp_shared_key) next;
sctp_key_t *key; /* key text */
uint32_t refcount; /* reference count */
uint16_t keyid; /* shared key ID */
uint8_t deactivated; /* key is deactivated */
} sctp_sharedkey_t;
LIST_HEAD(sctp_keyhead, sctp_shared_key);
/* authentication chunks list */
typedef struct sctp_auth_chklist {
uint8_t chunks[256];
uint8_t num_chunks;
} sctp_auth_chklist_t;
/* hmac algos supported list */
typedef struct sctp_hmaclist {
uint16_t max_algo; /* max algorithms allocated */
uint16_t num_algo; /* num algorithms used */
uint16_t hmac[];
} sctp_hmaclist_t;
/* authentication info */
typedef struct sctp_authinformation {
sctp_key_t *random; /* local random key (concatenated) */
uint32_t random_len; /* local random number length for param */
sctp_key_t *peer_random;/* peer's random key (concatenated) */
sctp_key_t *assoc_key; /* cached concatenated send key */
sctp_key_t *recv_key; /* cached concatenated recv key */
uint16_t active_keyid; /* active send keyid */
uint16_t assoc_keyid; /* current send keyid (cached) */
uint16_t recv_keyid; /* last recv keyid (cached) */
} sctp_authinfo_t;
/*
* Macros
*/
#define sctp_auth_is_required_chunk(chunk, list) ((list == NULL) ? (0) : (list->chunks[chunk] != 0))
/*
* function prototypes
*/
/* socket option api functions */
extern sctp_auth_chklist_t *sctp_alloc_chunklist(void);
extern void sctp_free_chunklist(sctp_auth_chklist_t *chklist);
extern void sctp_clear_chunklist(sctp_auth_chklist_t *chklist);
extern sctp_auth_chklist_t *sctp_copy_chunklist(sctp_auth_chklist_t *chklist);
extern int sctp_auth_add_chunk(uint8_t chunk, sctp_auth_chklist_t *list);
extern int sctp_auth_delete_chunk(uint8_t chunk, sctp_auth_chklist_t *list);
extern size_t sctp_auth_get_chklist_size(const sctp_auth_chklist_t *list);
extern int sctp_serialize_auth_chunks(const sctp_auth_chklist_t *list,
uint8_t *ptr);
extern int sctp_pack_auth_chunks(const sctp_auth_chklist_t *list,
uint8_t *ptr);
extern int sctp_unpack_auth_chunks(const uint8_t *ptr, uint8_t num_chunks,
sctp_auth_chklist_t *list);
/* key handling */
extern sctp_key_t *sctp_alloc_key(uint32_t keylen);
extern void sctp_free_key(sctp_key_t *key);
extern void sctp_print_key(sctp_key_t *key, const char *str);
extern void sctp_show_key(sctp_key_t *key, const char *str);
extern sctp_key_t *sctp_generate_random_key(uint32_t keylen);
extern sctp_key_t *sctp_set_key(uint8_t *key, uint32_t keylen);
extern sctp_key_t *sctp_compute_hashkey(sctp_key_t *key1, sctp_key_t *key2,
sctp_key_t *shared);
/* shared key handling */
extern sctp_sharedkey_t *sctp_alloc_sharedkey(void);
extern void sctp_free_sharedkey(sctp_sharedkey_t *skey);
extern sctp_sharedkey_t *sctp_find_sharedkey(struct sctp_keyhead *shared_keys,
uint16_t key_id);
extern int sctp_insert_sharedkey(struct sctp_keyhead *shared_keys,
sctp_sharedkey_t *new_skey);
extern int sctp_copy_skeylist(const struct sctp_keyhead *src,
struct sctp_keyhead *dest);
/* ref counts on shared keys, by key id */
extern void sctp_auth_key_acquire(struct sctp_tcb *stcb, uint16_t keyid);
extern void sctp_auth_key_release(struct sctp_tcb *stcb, uint16_t keyid,
int so_locked);
/* hmac list handling */
extern sctp_hmaclist_t *sctp_alloc_hmaclist(uint16_t num_hmacs);
extern void sctp_free_hmaclist(sctp_hmaclist_t *list);
extern int sctp_auth_add_hmacid(sctp_hmaclist_t *list, uint16_t hmac_id);
extern sctp_hmaclist_t *sctp_copy_hmaclist(sctp_hmaclist_t *list);
extern sctp_hmaclist_t *sctp_default_supported_hmaclist(void);
extern uint16_t sctp_negotiate_hmacid(sctp_hmaclist_t *peer,
sctp_hmaclist_t *local);
extern int sctp_serialize_hmaclist(sctp_hmaclist_t *list, uint8_t *ptr);
extern int sctp_verify_hmac_param(struct sctp_auth_hmac_algo *hmacs,
uint32_t num_hmacs);
extern sctp_authinfo_t *sctp_alloc_authinfo(void);
extern void sctp_free_authinfo(sctp_authinfo_t *authinfo);
/* keyed-HMAC functions */
extern uint32_t sctp_get_auth_chunk_len(uint16_t hmac_algo);
extern uint32_t sctp_get_hmac_digest_len(uint16_t hmac_algo);
extern uint32_t sctp_hmac(uint16_t hmac_algo, uint8_t *key, uint32_t keylen,
uint8_t *text, uint32_t textlen, uint8_t *digest);
extern uint32_t sctp_compute_hmac(uint16_t hmac_algo, sctp_key_t *key,
uint8_t *text, uint32_t textlen, uint8_t *digest);
extern int sctp_auth_is_supported_hmac(sctp_hmaclist_t *list, uint16_t id);
/* mbuf versions */
extern uint32_t sctp_hmac_m(uint16_t hmac_algo, uint8_t *key, uint32_t keylen,
struct mbuf *m, uint32_t m_offset, uint8_t *digest, uint32_t trailer);
extern uint32_t sctp_compute_hmac_m(uint16_t hmac_algo, sctp_key_t *key,
struct mbuf *m, uint32_t m_offset, uint8_t *digest);
/*
* authentication routines
*/
extern void sctp_clear_cachedkeys(struct sctp_tcb *stcb, uint16_t keyid);
extern void sctp_clear_cachedkeys_ep(struct sctp_inpcb *inp, uint16_t keyid);
extern int sctp_delete_sharedkey(struct sctp_tcb *stcb, uint16_t keyid);
extern int sctp_delete_sharedkey_ep(struct sctp_inpcb *inp, uint16_t keyid);
extern int sctp_auth_setactivekey(struct sctp_tcb *stcb, uint16_t keyid);
extern int sctp_auth_setactivekey_ep(struct sctp_inpcb *inp, uint16_t keyid);
extern int sctp_deact_sharedkey(struct sctp_tcb *stcb, uint16_t keyid);
extern int sctp_deact_sharedkey_ep(struct sctp_inpcb *inp, uint16_t keyid);
extern void sctp_auth_get_cookie_params(struct sctp_tcb *stcb, struct mbuf *m,
uint32_t offset, uint32_t length);
extern void sctp_fill_hmac_digest_m(struct mbuf *m, uint32_t auth_offset,
struct sctp_auth_chunk *auth, struct sctp_tcb *stcb, uint16_t key_id);
extern struct mbuf *sctp_add_auth_chunk(struct mbuf *m, struct mbuf **m_end,
struct sctp_auth_chunk **auth_ret, uint32_t *offset,
struct sctp_tcb *stcb, uint8_t chunk);
extern int sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *ch,
struct mbuf *m, uint32_t offset);
extern void sctp_notify_authentication(struct sctp_tcb *stcb,
uint32_t indication, uint16_t keyid, uint16_t alt_keyid, int so_locked);
extern int sctp_validate_init_auth_params(struct mbuf *m, int offset,
int limit);
extern void sctp_initialize_auth_params(struct sctp_inpcb *inp,
struct sctp_tcb *stcb);
/* test functions */
#ifdef SCTP_HMAC_TEST
extern void sctp_test_hmac_sha1(void);
extern void sctp_test_authkey(void);
#endif
#endif /* __SCTP_AUTH_H__ */

996
ext/sctp/usrsctp/usrsctplib/netinet/sctp_bsd_addr.c Normal file
View file

@ -0,0 +1,996 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_bsd_addr.c 358080 2020-02-18 19:41:55Z tuexen $");
#endif
#include <netinet/sctp_os.h>
#include <netinet/sctp_var.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctp_header.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_output.h>
#include <netinet/sctp_bsd_addr.h>
#include <netinet/sctp_uio.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_timer.h>
#include <netinet/sctp_asconf.h>
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp_indata.h>
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/unistd.h>
#endif
/* Declare all of our malloc named types */
MALLOC_DEFINE(SCTP_M_MAP, "sctp_map", "sctp asoc map descriptor");
MALLOC_DEFINE(SCTP_M_STRMI, "sctp_stri", "sctp stream in array");
MALLOC_DEFINE(SCTP_M_STRMO, "sctp_stro", "sctp stream out array");
MALLOC_DEFINE(SCTP_M_ASC_ADDR, "sctp_aadr", "sctp asconf address");
MALLOC_DEFINE(SCTP_M_ASC_IT, "sctp_a_it", "sctp asconf iterator");
MALLOC_DEFINE(SCTP_M_AUTH_CL, "sctp_atcl", "sctp auth chunklist");
MALLOC_DEFINE(SCTP_M_AUTH_KY, "sctp_atky", "sctp auth key");
MALLOC_DEFINE(SCTP_M_AUTH_HL, "sctp_athm", "sctp auth hmac list");
MALLOC_DEFINE(SCTP_M_AUTH_IF, "sctp_athi", "sctp auth info");
MALLOC_DEFINE(SCTP_M_STRESET, "sctp_stre", "sctp stream reset");
MALLOC_DEFINE(SCTP_M_CMSG, "sctp_cmsg", "sctp CMSG buffer");
MALLOC_DEFINE(SCTP_M_COPYAL, "sctp_cpal", "sctp copy all");
MALLOC_DEFINE(SCTP_M_VRF, "sctp_vrf", "sctp vrf struct");
MALLOC_DEFINE(SCTP_M_IFA, "sctp_ifa", "sctp ifa struct");
MALLOC_DEFINE(SCTP_M_IFN, "sctp_ifn", "sctp ifn struct");
MALLOC_DEFINE(SCTP_M_TIMW, "sctp_timw", "sctp time block");
MALLOC_DEFINE(SCTP_M_MVRF, "sctp_mvrf", "sctp mvrf pcb list");
MALLOC_DEFINE(SCTP_M_ITER, "sctp_iter", "sctp iterator control");
MALLOC_DEFINE(SCTP_M_SOCKOPT, "sctp_socko", "sctp socket option");
MALLOC_DEFINE(SCTP_M_MCORE, "sctp_mcore", "sctp mcore queue");
/* Global NON-VNET structure that controls the iterator */
struct iterator_control sctp_it_ctl;
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
static void
sctp_cleanup_itqueue(void)
{
struct sctp_iterator *it, *nit;
TAILQ_FOREACH_SAFE(it, &sctp_it_ctl.iteratorhead, sctp_nxt_itr, nit) {
if (it->function_atend != NULL) {
(*it->function_atend) (it->pointer, it->val);
}
TAILQ_REMOVE(&sctp_it_ctl.iteratorhead, it, sctp_nxt_itr);
SCTP_FREE(it, SCTP_M_ITER);
}
}
#endif
#if defined(__Userspace__)
/*__Userspace__ TODO if we use thread based iterator
* then the implementation of wakeup will need to change.
* Currently we are using timeo_cond for ident so_timeo
* but that is not sufficient if we need to use another ident
* like wakeup(&sctppcbinfo.iterator_running);
*/
#endif
void
sctp_wakeup_iterator(void)
{
#if defined(SCTP_PROCESS_LEVEL_LOCKS)
#if defined(_WIN32)
WakeAllConditionVariable(&sctp_it_ctl.iterator_wakeup);
#else
pthread_cond_broadcast(&sctp_it_ctl.iterator_wakeup);
#endif
#else
wakeup(&sctp_it_ctl.iterator_running);
#endif
}
#if defined(__Userspace__)
static void *
#else
static void
#endif
sctp_iterator_thread(void *v SCTP_UNUSED)
{
#if defined(__Userspace__)
sctp_userspace_set_threadname("SCTP iterator");
#endif
SCTP_IPI_ITERATOR_WQ_LOCK();
/* In FreeBSD this thread never terminates. */
#if defined(__FreeBSD__) && !defined(__Userspace__)
for (;;) {
#else
while ((sctp_it_ctl.iterator_flags & SCTP_ITERATOR_MUST_EXIT) == 0) {
#endif
#if !defined(__Userspace__)
msleep(&sctp_it_ctl.iterator_running,
#if defined(__FreeBSD__)
&sctp_it_ctl.ipi_iterator_wq_mtx,
#elif defined(__APPLE__)
sctp_it_ctl.ipi_iterator_wq_mtx,
#endif
0, "waiting_for_work", 0);
#else
#if defined(_WIN32)
SleepConditionVariableCS(&sctp_it_ctl.iterator_wakeup, &sctp_it_ctl.ipi_iterator_wq_mtx, INFINITE);
#else
pthread_cond_wait(&sctp_it_ctl.iterator_wakeup, &sctp_it_ctl.ipi_iterator_wq_mtx);
#endif
#endif
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
if (sctp_it_ctl.iterator_flags & SCTP_ITERATOR_MUST_EXIT) {
break;
}
#endif
sctp_iterator_worker();
}
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
/* Now this thread needs to be terminated */
sctp_cleanup_itqueue();
sctp_it_ctl.iterator_flags |= SCTP_ITERATOR_EXITED;
SCTP_IPI_ITERATOR_WQ_UNLOCK();
#if defined(__Userspace__)
sctp_wakeup_iterator();
return (NULL);
#else
wakeup(&sctp_it_ctl.iterator_flags);
thread_terminate(current_thread());
#ifdef INVARIANTS
panic("Hmm. thread_terminate() continues...");
#endif
#endif
#endif
}
void
sctp_startup_iterator(void)
{
if (sctp_it_ctl.thread_proc) {
/* You only get one */
return;
}
/* Initialize global locks here, thus only once. */
SCTP_ITERATOR_LOCK_INIT();
SCTP_IPI_ITERATOR_WQ_INIT();
TAILQ_INIT(&sctp_it_ctl.iteratorhead);
#if defined(__Userspace__)
if (sctp_userspace_thread_create(&sctp_it_ctl.thread_proc, &sctp_iterator_thread)) {
SCTP_PRINTF("ERROR: Creating sctp_iterator_thread failed.\n");
} else {
SCTP_BASE_VAR(iterator_thread_started) = 1;
}
#elif defined(__FreeBSD__)
kproc_create(sctp_iterator_thread,
(void *)NULL,
&sctp_it_ctl.thread_proc,
RFPROC,
SCTP_KTHREAD_PAGES,
SCTP_KTRHEAD_NAME);
#elif defined(__APPLE__)
kernel_thread_start((thread_continue_t)sctp_iterator_thread, NULL, &sctp_it_ctl.thread_proc);
#endif
}
#ifdef INET6
#if defined(__Userspace__)
/* __Userspace__ TODO. struct in6_ifaddr is defined in sys/netinet6/in6_var.h
ip6_use_deprecated is defined as int ip6_use_deprecated = 1; in /src/sys/netinet6/in6_proto.c
*/
void
sctp_gather_internal_ifa_flags(struct sctp_ifa *ifa)
{
return; /* stub */
}
#else
void
sctp_gather_internal_ifa_flags(struct sctp_ifa *ifa)
{
struct in6_ifaddr *ifa6;
ifa6 = (struct in6_ifaddr *)ifa->ifa;
ifa->flags = ifa6->ia6_flags;
if (!MODULE_GLOBAL(ip6_use_deprecated)) {
if (ifa->flags &
IN6_IFF_DEPRECATED) {
ifa->localifa_flags |= SCTP_ADDR_IFA_UNUSEABLE;
} else {
ifa->localifa_flags &= ~SCTP_ADDR_IFA_UNUSEABLE;
}
} else {
ifa->localifa_flags &= ~SCTP_ADDR_IFA_UNUSEABLE;
}
if (ifa->flags &
(IN6_IFF_DETACHED |
IN6_IFF_ANYCAST |
IN6_IFF_NOTREADY)) {
ifa->localifa_flags |= SCTP_ADDR_IFA_UNUSEABLE;
} else {
ifa->localifa_flags &= ~SCTP_ADDR_IFA_UNUSEABLE;
}
}
#endif /* __Userspace__ */
#endif /* INET6 */
#if !defined(__Userspace__)
static uint32_t
sctp_is_desired_interface_type(struct ifnet *ifn)
{
int result;
/* check the interface type to see if it's one we care about */
#if defined(__APPLE__) && !defined(__Userspace__)
switch(ifnet_type(ifn)) {
#else
switch (ifn->if_type) {
#endif
case IFT_ETHER:
case IFT_ISO88023:
case IFT_ISO88024:
case IFT_ISO88025:
case IFT_ISO88026:
case IFT_STARLAN:
case IFT_P10:
case IFT_P80:
case IFT_HY:
case IFT_FDDI:
case IFT_XETHER:
case IFT_ISDNBASIC:
case IFT_ISDNPRIMARY:
case IFT_PTPSERIAL:
case IFT_OTHER:
case IFT_PPP:
case IFT_LOOP:
case IFT_SLIP:
case IFT_GIF:
case IFT_L2VLAN:
case IFT_STF:
#if !(defined(__APPLE__) && !defined(__Userspace__))
case IFT_IP:
case IFT_IPOVERCDLC:
case IFT_IPOVERCLAW:
case IFT_PROPVIRTUAL: /* NetGraph Virtual too */
case IFT_VIRTUALIPADDRESS:
#endif
result = 1;
break;
default:
result = 0;
}
return (result);
}
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
int
sctp_is_vmware_interface(struct ifnet *ifn)
{
return (strncmp(ifnet_name(ifn), "vmnet", 5) == 0);
}
#endif
#if defined(_WIN32) && defined(__Userspace__)
#ifdef MALLOC
#undef MALLOC
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#endif
#ifdef FREE
#undef FREE
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
#endif
static void
sctp_init_ifns_for_vrf(int vrfid)
{
#if defined(INET) || defined(INET6)
struct sctp_ifa *sctp_ifa;
DWORD Err, AdapterAddrsSize;
PIP_ADAPTER_ADDRESSES pAdapterAddrs, pAdapt;
PIP_ADAPTER_UNICAST_ADDRESS pUnicast;
#endif
#ifdef INET
AdapterAddrsSize = 0;
if ((Err = GetAdaptersAddresses(AF_INET, 0, NULL, NULL, &AdapterAddrsSize)) != 0) {
if ((Err != ERROR_BUFFER_OVERFLOW) && (Err != ERROR_INSUFFICIENT_BUFFER)) {
SCTP_PRINTF("GetAdaptersV4Addresses() sizing failed with error code %d\n", Err);
SCTP_PRINTF("err = %d; AdapterAddrsSize = %d\n", Err, AdapterAddrsSize);
return;
}
}
/* Allocate memory from sizing information */
if ((pAdapterAddrs = (PIP_ADAPTER_ADDRESSES) GlobalAlloc(GPTR, AdapterAddrsSize)) == NULL) {
SCTP_PRINTF("Memory allocation error!\n");
return;
}
/* Get actual adapter information */
if ((Err = GetAdaptersAddresses(AF_INET, 0, NULL, pAdapterAddrs, &AdapterAddrsSize)) != ERROR_SUCCESS) {
SCTP_PRINTF("GetAdaptersV4Addresses() failed with error code %d\n", Err);
FREE(pAdapterAddrs);
return;
}
/* Enumerate through each returned adapter and save its information */
for (pAdapt = pAdapterAddrs; pAdapt; pAdapt = pAdapt->Next) {
if (pAdapt->IfType == IF_TYPE_IEEE80211 || pAdapt->IfType == IF_TYPE_ETHERNET_CSMACD) {
for (pUnicast = pAdapt->FirstUnicastAddress; pUnicast; pUnicast = pUnicast->Next) {
if (IN4_ISLINKLOCAL_ADDRESS(&(((struct sockaddr_in *)(pUnicast->Address.lpSockaddr))->sin_addr))) {
continue;
}
sctp_ifa = sctp_add_addr_to_vrf(0,
NULL,
pAdapt->IfIndex,
(pAdapt->IfType == IF_TYPE_IEEE80211)?MIB_IF_TYPE_ETHERNET:pAdapt->IfType,
pAdapt->AdapterName,
NULL,
pUnicast->Address.lpSockaddr,
pAdapt->Flags,
0);
if (sctp_ifa) {
sctp_ifa->localifa_flags &= ~SCTP_ADDR_DEFER_USE;
}
}
}
}
FREE(pAdapterAddrs);
#endif
#ifdef INET6
AdapterAddrsSize = 0;
if ((Err = GetAdaptersAddresses(AF_INET6, 0, NULL, NULL, &AdapterAddrsSize)) != 0) {
if ((Err != ERROR_BUFFER_OVERFLOW) && (Err != ERROR_INSUFFICIENT_BUFFER)) {
SCTP_PRINTF("GetAdaptersV6Addresses() sizing failed with error code %d\n", Err);
SCTP_PRINTF("err = %d; AdapterAddrsSize = %d\n", Err, AdapterAddrsSize);
return;
}
}
/* Allocate memory from sizing information */
if ((pAdapterAddrs = (PIP_ADAPTER_ADDRESSES) GlobalAlloc(GPTR, AdapterAddrsSize)) == NULL) {
SCTP_PRINTF("Memory allocation error!\n");
return;
}
/* Get actual adapter information */
if ((Err = GetAdaptersAddresses(AF_INET6, 0, NULL, pAdapterAddrs, &AdapterAddrsSize)) != ERROR_SUCCESS) {
SCTP_PRINTF("GetAdaptersV6Addresses() failed with error code %d\n", Err);
FREE(pAdapterAddrs);
return;
}
/* Enumerate through each returned adapter and save its information */
for (pAdapt = pAdapterAddrs; pAdapt; pAdapt = pAdapt->Next) {
if (pAdapt->IfType == IF_TYPE_IEEE80211 || pAdapt->IfType == IF_TYPE_ETHERNET_CSMACD) {
for (pUnicast = pAdapt->FirstUnicastAddress; pUnicast; pUnicast = pUnicast->Next) {
sctp_ifa = sctp_add_addr_to_vrf(0,
NULL,
pAdapt->Ipv6IfIndex,
(pAdapt->IfType == IF_TYPE_IEEE80211)?MIB_IF_TYPE_ETHERNET:pAdapt->IfType,
pAdapt->AdapterName,
NULL,
pUnicast->Address.lpSockaddr,
pAdapt->Flags,
0);
if (sctp_ifa) {
sctp_ifa->localifa_flags &= ~SCTP_ADDR_DEFER_USE;
}
}
}
}
FREE(pAdapterAddrs);
#endif
}
#elif defined(__Userspace__)
static void
sctp_init_ifns_for_vrf(int vrfid)
{
#if defined(INET) || defined(INET6)
int rc;
struct ifaddrs *ifa, *ifas;
struct sctp_ifa *sctp_ifa;
uint32_t ifa_flags;
rc = getifaddrs(&ifas);
if (rc != 0) {
return;
}
for (ifa = ifas; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr == NULL) {
continue;
}
#if !defined(INET)
if (ifa->ifa_addr->sa_family != AF_INET6) {
/* non inet6 skip */
continue;
}
#elif !defined(INET6)
if (ifa->ifa_addr->sa_family != AF_INET) {
/* non inet skip */
continue;
}
#else
if ((ifa->ifa_addr->sa_family != AF_INET) && (ifa->ifa_addr->sa_family != AF_INET6)) {
/* non inet/inet6 skip */
continue;
}
#endif
#if defined(INET6)
if ((ifa->ifa_addr->sa_family == AF_INET6) &&
IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr)) {
/* skip unspecifed addresses */
continue;
}
#endif
#if defined(INET)
if (ifa->ifa_addr->sa_family == AF_INET &&
((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr == 0) {
continue;
}
#endif
ifa_flags = 0;
sctp_ifa = sctp_add_addr_to_vrf(vrfid,
NULL,
if_nametoindex(ifa->ifa_name),
0,
ifa->ifa_name,
NULL,
ifa->ifa_addr,
ifa_flags,
0);
if (sctp_ifa) {
sctp_ifa->localifa_flags &= ~SCTP_ADDR_DEFER_USE;
}
}
freeifaddrs(ifas);
#endif
}
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
static void
sctp_init_ifns_for_vrf(int vrfid)
{
/* Here we must apply ANY locks needed by the
* IFN we access and also make sure we lock
* any IFA that exists as we float through the
* list of IFA's
*/
struct ifnet **ifnetlist;
uint32_t i, j, count;
char name[SCTP_IFNAMSIZ];
struct ifnet *ifn;
struct ifaddr **ifaddrlist;
struct ifaddr *ifa;
struct in6_ifaddr *ifa6;
struct sctp_ifa *sctp_ifa;
uint32_t ifa_flags;
if (ifnet_list_get(IFNET_FAMILY_ANY, &ifnetlist, &count) != 0) {
return;
}
for (i = 0; i < count; i++) {
ifn = ifnetlist[i];
if (SCTP_BASE_SYSCTL(sctp_ignore_vmware_interfaces) && sctp_is_vmware_interface(ifn)) {
continue;
}
if (sctp_is_desired_interface_type(ifn) == 0) {
/* non desired type */
continue;
}
if (ifnet_get_address_list(ifn, &ifaddrlist) != 0) {
continue;
}
for (j = 0; ifaddrlist[j] != NULL; j++) {
ifa = ifaddrlist[j];
if (ifa->ifa_addr == NULL) {
continue;
}
if ((ifa->ifa_addr->sa_family != AF_INET) && (ifa->ifa_addr->sa_family != AF_INET6)) {
/* non inet/inet6 skip */
continue;
}
if (ifa->ifa_addr->sa_family == AF_INET6) {
if (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr)) {
/* skip unspecifed addresses */
continue;
}
} else {
if (((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr == INADDR_ANY) {
continue;
}
}
if (ifa->ifa_addr->sa_family == AF_INET6) {
ifa6 = (struct in6_ifaddr *)ifa;
ifa_flags = ifa6->ia6_flags;
} else {
ifa_flags = 0;
}
SCTP_SNPRINTF(name, SCTP_IFNAMSIZ, "%s%d", ifnet_name(ifn), ifnet_unit(ifn));
sctp_ifa = sctp_add_addr_to_vrf(vrfid,
(void *)ifn, /* XXX */
ifnet_index(ifn),
ifnet_type(ifn),
name,
(void *)ifa, /* XXX */
ifa->ifa_addr,
ifa_flags,
0);
if (sctp_ifa) {
sctp_ifa->localifa_flags &= ~SCTP_ADDR_DEFER_USE;
}
}
ifnet_free_address_list(ifaddrlist);
}
ifnet_list_free(ifnetlist);
}
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
static void
sctp_init_ifns_for_vrf(int vrfid)
{
/* Here we must apply ANY locks needed by the
* IFN we access and also make sure we lock
* any IFA that exists as we float through the
* list of IFA's
*/
struct epoch_tracker et;
struct ifnet *ifn;
struct ifaddr *ifa;
struct sctp_ifa *sctp_ifa;
uint32_t ifa_flags;
#ifdef INET6
struct in6_ifaddr *ifa6;
#endif
IFNET_RLOCK();
NET_EPOCH_ENTER(et);
CK_STAILQ_FOREACH(ifn, &MODULE_GLOBAL(ifnet), if_link) {
if (sctp_is_desired_interface_type(ifn) == 0) {
/* non desired type */
continue;
}
CK_STAILQ_FOREACH(ifa, &ifn->if_addrhead, ifa_link) {
if (ifa->ifa_addr == NULL) {
continue;
}
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if (((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr == 0) {
continue;
}
break;
#endif
#ifdef INET6
case AF_INET6:
if (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr)) {
/* skip unspecifed addresses */
continue;
}
break;
#endif
default:
continue;
}
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
ifa_flags = 0;
break;
#endif
#ifdef INET6
case AF_INET6:
ifa6 = (struct in6_ifaddr *)ifa;
ifa_flags = ifa6->ia6_flags;
break;
#endif
default:
ifa_flags = 0;
break;
}
sctp_ifa = sctp_add_addr_to_vrf(vrfid,
(void *)ifn,
ifn->if_index,
ifn->if_type,
ifn->if_xname,
(void *)ifa,
ifa->ifa_addr,
ifa_flags,
0);
if (sctp_ifa) {
sctp_ifa->localifa_flags &= ~SCTP_ADDR_DEFER_USE;
}
}
}
NET_EPOCH_EXIT(et);
IFNET_RUNLOCK();
}
#endif
void
sctp_init_vrf_list(int vrfid)
{
if (vrfid > SCTP_MAX_VRF_ID)
/* can't do that */
return;
/* Don't care about return here */
(void)sctp_allocate_vrf(vrfid);
/* Now we need to build all the ifn's
* for this vrf and there addresses
*/
sctp_init_ifns_for_vrf(vrfid);
}
void
sctp_addr_change(struct ifaddr *ifa, int cmd)
{
#if defined(__Userspace__)
return;
#else
uint32_t ifa_flags = 0;
if (SCTP_BASE_VAR(sctp_pcb_initialized) == 0) {
return;
}
/* BSD only has one VRF, if this changes
* we will need to hook in the right
* things here to get the id to pass to
* the address management routine.
*/
if (SCTP_BASE_VAR(first_time) == 0) {
/* Special test to see if my ::1 will showup with this */
SCTP_BASE_VAR(first_time) = 1;
sctp_init_ifns_for_vrf(SCTP_DEFAULT_VRFID);
}
if ((cmd != RTM_ADD) && (cmd != RTM_DELETE)) {
/* don't know what to do with this */
return;
}
if (ifa->ifa_addr == NULL) {
return;
}
if (sctp_is_desired_interface_type(ifa->ifa_ifp) == 0) {
/* non desired type */
return;
}
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if (((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr == 0) {
return;
}
break;
#endif
#ifdef INET6
case AF_INET6:
ifa_flags = ((struct in6_ifaddr *)ifa)->ia6_flags;
if (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr)) {
/* skip unspecifed addresses */
return;
}
break;
#endif
default:
/* non inet/inet6 skip */
return;
}
if (cmd == RTM_ADD) {
(void)sctp_add_addr_to_vrf(SCTP_DEFAULT_VRFID, (void *)ifa->ifa_ifp,
#if defined(__APPLE__) && !defined(__Userspace__)
ifnet_index(ifa->ifa_ifp), ifnet_type(ifa->ifa_ifp), ifnet_name(ifa->ifa_ifp),
#else
ifa->ifa_ifp->if_index, ifa->ifa_ifp->if_type, ifa->ifa_ifp->if_xname,
#endif
(void *)ifa, ifa->ifa_addr, ifa_flags, 1);
} else {
sctp_del_addr_from_vrf(SCTP_DEFAULT_VRFID, ifa->ifa_addr,
#if defined(__APPLE__) && !defined(__Userspace__)
ifnet_index(ifa->ifa_ifp),
ifnet_name(ifa->ifa_ifp));
#else
ifa->ifa_ifp->if_index,
ifa->ifa_ifp->if_xname);
#endif
/* We don't bump refcount here so when it completes
* the final delete will happen.
*/
}
#endif
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
void
sctp_addr_change_event_handler(void *arg __unused, struct ifaddr *ifa, int cmd) {
sctp_addr_change(ifa, cmd);
}
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
void
sctp_add_or_del_interfaces(int (*pred)(struct ifnet *), int add)
{
struct ifnet **ifnetlist;
struct ifaddr **ifaddrlist;
uint32_t i, j, count;
if (ifnet_list_get(IFNET_FAMILY_ANY, &ifnetlist, &count) != 0) {
return;
}
for (i = 0; i < count; i++) {
if (!(*pred)(ifnetlist[i])) {
continue;
}
if (ifnet_get_address_list(ifnetlist[i], &ifaddrlist) != 0) {
continue;
}
for (j = 0; ifaddrlist[j] != NULL; j++) {
sctp_addr_change(ifaddrlist[j], add ? RTM_ADD : RTM_DELETE);
}
ifnet_free_address_list(ifaddrlist);
}
ifnet_list_free(ifnetlist);
return;
}
#endif
struct mbuf *
sctp_get_mbuf_for_msg(unsigned int space_needed, int want_header,
int how, int allonebuf, int type)
{
struct mbuf *m = NULL;
#if defined(__FreeBSD__) || defined(__Userspace__)
#if defined(__Userspace__)
m = m_getm2(NULL, space_needed, how, type, want_header ? M_PKTHDR : 0, allonebuf);
#else
m = m_getm2(NULL, space_needed, how, type, want_header ? M_PKTHDR : 0);
#endif
if (m == NULL) {
/* bad, no memory */
return (m);
}
#if !defined(__Userspace__)
if (allonebuf) {
if (SCTP_BUF_SIZE(m) < space_needed) {
m_freem(m);
return (NULL);
}
KASSERT(SCTP_BUF_NEXT(m) == NULL, ("%s: no chain allowed", __FUNCTION__));
}
#endif
#ifdef SCTP_MBUF_LOGGING
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MBUF_LOGGING_ENABLE) {
sctp_log_mb(m, SCTP_MBUF_IALLOC);
}
#endif
#else
int mbuf_threshold;
unsigned int size;
if (want_header) {
MGETHDR(m, how, type);
size = MHLEN;
} else {
MGET(m, how, type);
size = MLEN;
}
if (m == NULL) {
return (NULL);
}
if (allonebuf == 0) {
mbuf_threshold = SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count);
} else {
mbuf_threshold = 1;
}
if (space_needed > (unsigned int)(((mbuf_threshold - 1) * MLEN) + MHLEN)) {
MCLGET(m, how);
if (m == NULL) {
return (NULL);
}
if (SCTP_BUF_IS_EXTENDED(m) == 0) {
sctp_m_freem(m);
return (NULL);
}
size = SCTP_BUF_EXTEND_SIZE(m);
}
if (allonebuf != 0 && size < space_needed) {
m_freem(m);
return (NULL);
}
SCTP_BUF_LEN(m) = 0;
SCTP_BUF_NEXT(m) = SCTP_BUF_NEXT_PKT(m) = NULL;
#ifdef SCTP_MBUF_LOGGING
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MBUF_LOGGING_ENABLE) {
sctp_log_mb(m, SCTP_MBUF_IALLOC);
}
#endif
#endif
return (m);
}
#ifdef SCTP_PACKET_LOGGING
void
sctp_packet_log(struct mbuf *m)
{
int *lenat, thisone;
void *copyto;
uint32_t *tick_tock;
int length;
int total_len;
int grabbed_lock = 0;
int value, newval, thisend, thisbegin;
/*
* Buffer layout.
* -sizeof this entry (total_len)
* -previous end (value)
* -ticks of log (ticks)
* o -ip packet
* o -as logged
* - where this started (thisbegin)
* x <--end points here
*/
length = SCTP_HEADER_LEN(m);
total_len = SCTP_SIZE32((length + (4 * sizeof(int))));
/* Log a packet to the buffer. */
if (total_len> SCTP_PACKET_LOG_SIZE) {
/* Can't log this packet I have not a buffer big enough */
return;
}
if (length < (int)(SCTP_MIN_V4_OVERHEAD + sizeof(struct sctp_cookie_ack_chunk))) {
return;
}
atomic_add_int(&SCTP_BASE_VAR(packet_log_writers), 1);
try_again:
if (SCTP_BASE_VAR(packet_log_writers) > SCTP_PKTLOG_WRITERS_NEED_LOCK) {
SCTP_IP_PKTLOG_LOCK();
grabbed_lock = 1;
again_locked:
value = SCTP_BASE_VAR(packet_log_end);
newval = SCTP_BASE_VAR(packet_log_end) + total_len;
if (newval >= SCTP_PACKET_LOG_SIZE) {
/* we wrapped */
thisbegin = 0;
thisend = total_len;
} else {
thisbegin = SCTP_BASE_VAR(packet_log_end);
thisend = newval;
}
if (!(atomic_cmpset_int(&SCTP_BASE_VAR(packet_log_end), value, thisend))) {
goto again_locked;
}
} else {
value = SCTP_BASE_VAR(packet_log_end);
newval = SCTP_BASE_VAR(packet_log_end) + total_len;
if (newval >= SCTP_PACKET_LOG_SIZE) {
/* we wrapped */
thisbegin = 0;
thisend = total_len;
} else {
thisbegin = SCTP_BASE_VAR(packet_log_end);
thisend = newval;
}
if (!(atomic_cmpset_int(&SCTP_BASE_VAR(packet_log_end), value, thisend))) {
goto try_again;
}
}
/* Sanity check */
if (thisend >= SCTP_PACKET_LOG_SIZE) {
SCTP_PRINTF("Insanity stops a log thisbegin:%d thisend:%d writers:%d lock:%d end:%d\n",
thisbegin,
thisend,
SCTP_BASE_VAR(packet_log_writers),
grabbed_lock,
SCTP_BASE_VAR(packet_log_end));
SCTP_BASE_VAR(packet_log_end) = 0;
goto no_log;
}
lenat = (int *)&SCTP_BASE_VAR(packet_log_buffer)[thisbegin];
*lenat = total_len;
lenat++;
*lenat = value;
lenat++;
tick_tock = (uint32_t *)lenat;
lenat++;
*tick_tock = sctp_get_tick_count();
copyto = (void *)lenat;
thisone = thisend - sizeof(int);
lenat = (int *)&SCTP_BASE_VAR(packet_log_buffer)[thisone];
*lenat = thisbegin;
if (grabbed_lock) {
SCTP_IP_PKTLOG_UNLOCK();
grabbed_lock = 0;
}
m_copydata(m, 0, length, (caddr_t)copyto);
no_log:
if (grabbed_lock) {
SCTP_IP_PKTLOG_UNLOCK();
}
atomic_subtract_int(&SCTP_BASE_VAR(packet_log_writers), 1);
}
int
sctp_copy_out_packet_log(uint8_t *target, int length)
{
/* We wind through the packet log starting at
* start copying up to length bytes out.
* We return the number of bytes copied.
*/
int tocopy, this_copy;
int *lenat;
int did_delay = 0;
tocopy = length;
if (length < (int)(2 * sizeof(int))) {
/* not enough room */
return (0);
}
if (SCTP_PKTLOG_WRITERS_NEED_LOCK) {
atomic_add_int(&SCTP_BASE_VAR(packet_log_writers), SCTP_PKTLOG_WRITERS_NEED_LOCK);
again:
if ((did_delay == 0) && (SCTP_BASE_VAR(packet_log_writers) != SCTP_PKTLOG_WRITERS_NEED_LOCK)) {
/* we delay here for just a moment hoping the writer(s) that were
* present when we entered will have left and we only have
* locking ones that will contend with us for the lock. This
* does not assure 100% access, but its good enough for
* a logging facility like this.
*/
did_delay = 1;
DELAY(10);
goto again;
}
}
SCTP_IP_PKTLOG_LOCK();
lenat = (int *)target;
*lenat = SCTP_BASE_VAR(packet_log_end);
lenat++;
this_copy = min((length - sizeof(int)), SCTP_PACKET_LOG_SIZE);
memcpy((void *)lenat, (void *)SCTP_BASE_VAR(packet_log_buffer), this_copy);
if (SCTP_PKTLOG_WRITERS_NEED_LOCK) {
atomic_subtract_int(&SCTP_BASE_VAR(packet_log_writers),
SCTP_PKTLOG_WRITERS_NEED_LOCK);
}
SCTP_IP_PKTLOG_UNLOCK();
return (this_copy + sizeof(int));
}
#endif

73
ext/sctp/usrsctp/usrsctplib/netinet/sctp_bsd_addr.h Normal file
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@ -0,0 +1,73 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_bsd_addr.h 353480 2019-10-13 18:17:08Z tuexen $");
#endif
#ifndef _NETINET_SCTP_BSD_ADDR_H_
#define _NETINET_SCTP_BSD_ADDR_H_
#include <netinet/sctp_pcb.h>
#if defined(_KERNEL) || defined(__Userspace__)
extern struct iterator_control sctp_it_ctl;
void sctp_wakeup_iterator(void);
void sctp_startup_iterator(void);
#ifdef INET6
void sctp_gather_internal_ifa_flags(struct sctp_ifa *ifa);
#endif
#ifdef SCTP_PACKET_LOGGING
void sctp_packet_log(struct mbuf *m);
int sctp_copy_out_packet_log(uint8_t *target, int length);
#endif
void sctp_addr_change(struct ifaddr *ifa, int cmd);
#if defined(__FreeBSD__) && !defined(__Userspace__)
void sctp_addr_change_event_handler(void *, struct ifaddr *, int);
#endif
void sctp_add_or_del_interfaces(int (*pred)(struct ifnet *), int add);
#endif
#endif

249
ext/sctp/usrsctp/usrsctplib/netinet/sctp_callout.c Normal file
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@ -0,0 +1,249 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__Userspace__)
#include <sys/types.h>
#if !defined(_WIN32)
#include <sys/wait.h>
#include <unistd.h>
#include <pthread.h>
#endif
#if defined(__native_client__)
#include <sys/select.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <user_atomic.h>
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp_pcb.h>
#else
#include <netinet/sctp_os.h>
#include <netinet/sctp_callout.h>
#include <netinet/sctp_pcb.h>
#endif
#include <netinet/sctputil.h>
/*
* Callout/Timer routines for OS that doesn't have them
*/
#if defined(__APPLE__) || defined(__Userspace__)
static uint32_t ticks = 0;
#else
extern int ticks;
#endif
uint32_t sctp_get_tick_count(void) {
uint32_t ret;
SCTP_TIMERQ_LOCK();
ret = ticks;
SCTP_TIMERQ_UNLOCK();
return ret;
}
/*
* SCTP_TIMERQ_LOCK protects:
* - SCTP_BASE_INFO(callqueue)
* - sctp_os_timer_next: next timer to check
*/
static sctp_os_timer_t *sctp_os_timer_next = NULL;
void
sctp_os_timer_init(sctp_os_timer_t *c)
{
memset(c, 0, sizeof(*c));
}
int
sctp_os_timer_start(sctp_os_timer_t *c, uint32_t to_ticks, void (*ftn) (void *),
void *arg)
{
int ret = 0;
/* paranoia */
if ((c == NULL) || (ftn == NULL))
return (ret);
SCTP_TIMERQ_LOCK();
/* check to see if we're rescheduling a timer */
if (c->c_flags & SCTP_CALLOUT_PENDING) {
ret = 1;
if (c == sctp_os_timer_next) {
sctp_os_timer_next = TAILQ_NEXT(c, tqe);
}
TAILQ_REMOVE(&SCTP_BASE_INFO(callqueue), c, tqe);
/*
* part of the normal "stop a pending callout" process
* is to clear the CALLOUT_ACTIVE and CALLOUT_PENDING
* flags. We don't bother since we are setting these
* below and we still hold the lock.
*/
}
/*
* We could unlock/splx here and lock/spl at the TAILQ_INSERT_TAIL,
* but there's no point since doing this setup doesn't take much time.
*/
if (to_ticks == 0)
to_ticks = 1;
c->c_arg = arg;
c->c_flags = (SCTP_CALLOUT_ACTIVE | SCTP_CALLOUT_PENDING);
c->c_func = ftn;
c->c_time = ticks + to_ticks;
TAILQ_INSERT_TAIL(&SCTP_BASE_INFO(callqueue), c, tqe);
SCTP_TIMERQ_UNLOCK();
return (ret);
}
int
sctp_os_timer_stop(sctp_os_timer_t *c)
{
SCTP_TIMERQ_LOCK();
/*
* Don't attempt to delete a callout that's not on the queue.
*/
if (!(c->c_flags & SCTP_CALLOUT_PENDING)) {
c->c_flags &= ~SCTP_CALLOUT_ACTIVE;
SCTP_TIMERQ_UNLOCK();
return (0);
}
c->c_flags &= ~(SCTP_CALLOUT_ACTIVE | SCTP_CALLOUT_PENDING);
if (c == sctp_os_timer_next) {
sctp_os_timer_next = TAILQ_NEXT(c, tqe);
}
TAILQ_REMOVE(&SCTP_BASE_INFO(callqueue), c, tqe);
SCTP_TIMERQ_UNLOCK();
return (1);
}
void
sctp_handle_tick(uint32_t elapsed_ticks)
{
sctp_os_timer_t *c;
void (*c_func)(void *);
void *c_arg;
SCTP_TIMERQ_LOCK();
/* update our tick count */
ticks += elapsed_ticks;
c = TAILQ_FIRST(&SCTP_BASE_INFO(callqueue));
while (c) {
if (SCTP_UINT32_GE(ticks, c->c_time)) {
sctp_os_timer_next = TAILQ_NEXT(c, tqe);
TAILQ_REMOVE(&SCTP_BASE_INFO(callqueue), c, tqe);
c_func = c->c_func;
c_arg = c->c_arg;
c->c_flags &= ~SCTP_CALLOUT_PENDING;
SCTP_TIMERQ_UNLOCK();
c_func(c_arg);
SCTP_TIMERQ_LOCK();
c = sctp_os_timer_next;
} else {
c = TAILQ_NEXT(c, tqe);
}
}
sctp_os_timer_next = NULL;
SCTP_TIMERQ_UNLOCK();
}
#if defined(__APPLE__) && !defined(__Userspace__)
void
sctp_timeout(void *arg SCTP_UNUSED)
{
sctp_handle_tick(SCTP_BASE_VAR(sctp_main_timer_ticks));
sctp_start_main_timer();
}
#endif
#if defined(__Userspace__)
#define TIMEOUT_INTERVAL 10
void *
user_sctp_timer_iterate(void *arg)
{
sctp_userspace_set_threadname("SCTP timer");
for (;;) {
#if defined(_WIN32)
Sleep(TIMEOUT_INTERVAL);
#else
struct timespec amount, remaining;
remaining.tv_sec = 0;
remaining.tv_nsec = TIMEOUT_INTERVAL * 1000 * 1000;
do {
amount = remaining;
} while (nanosleep(&amount, &remaining) == -1);
#endif
if (atomic_cmpset_int(&SCTP_BASE_VAR(timer_thread_should_exit), 1, 1)) {
break;
}
sctp_handle_tick(sctp_msecs_to_ticks(TIMEOUT_INTERVAL));
}
return (NULL);
}
void
sctp_start_timer_thread(void)
{
/*
* No need to do SCTP_TIMERQ_LOCK_INIT();
* here, it is being done in sctp_pcb_init()
*/
int rc;
rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(timer_thread), user_sctp_timer_iterate);
if (rc) {
SCTP_PRINTF("ERROR; return code from sctp_thread_create() is %d\n", rc);
} else {
SCTP_BASE_VAR(timer_thread_started) = 1;
}
}
void
sctp_stop_timer_thread(void)
{
atomic_cmpset_int(&SCTP_BASE_VAR(timer_thread_should_exit), 0, 1);
if (SCTP_BASE_VAR(timer_thread_started)) {
#if defined(_WIN32)
WaitForSingleObject(SCTP_BASE_VAR(timer_thread), INFINITE);
CloseHandle(SCTP_BASE_VAR(timer_thread));
#else
pthread_join(SCTP_BASE_VAR(timer_thread), NULL);
#endif
}
}
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#endif
#ifndef _NETINET_SCTP_CALLOUT_
#define _NETINET_SCTP_CALLOUT_
/*
* NOTE: the following MACROS are required for locking the callout
* queue along with a lock/mutex in the OS specific headers and
* implementation files::
* - SCTP_TIMERQ_LOCK()
* - SCTP_TIMERQ_UNLOCK()
* - SCTP_TIMERQ_LOCK_INIT()
* - SCTP_TIMERQ_LOCK_DESTROY()
*/
#define _SCTP_NEEDS_CALLOUT_ 1
#define SCTP_TICKS_PER_FASTTIMO 20 /* called about every 20ms */
#if defined(__Userspace__)
#if defined(_WIN32)
#define SCTP_TIMERQ_LOCK() EnterCriticalSection(&SCTP_BASE_VAR(timer_mtx))
#define SCTP_TIMERQ_UNLOCK() LeaveCriticalSection(&SCTP_BASE_VAR(timer_mtx))
#define SCTP_TIMERQ_LOCK_INIT() InitializeCriticalSection(&SCTP_BASE_VAR(timer_mtx))
#define SCTP_TIMERQ_LOCK_DESTROY() DeleteCriticalSection(&SCTP_BASE_VAR(timer_mtx))
#else
#ifdef INVARIANTS
#define SCTP_TIMERQ_LOCK() KASSERT(pthread_mutex_lock(&SCTP_BASE_VAR(timer_mtx)) == 0, ("%s: timer_mtx already locked", __func__))
#define SCTP_TIMERQ_UNLOCK() KASSERT(pthread_mutex_unlock(&SCTP_BASE_VAR(timer_mtx)) == 0, ("%s: timer_mtx not locked", __func__))
#else
#define SCTP_TIMERQ_LOCK() (void)pthread_mutex_lock(&SCTP_BASE_VAR(timer_mtx))
#define SCTP_TIMERQ_UNLOCK() (void)pthread_mutex_unlock(&SCTP_BASE_VAR(timer_mtx))
#endif
#define SCTP_TIMERQ_LOCK_INIT() (void)pthread_mutex_init(&SCTP_BASE_VAR(timer_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_TIMERQ_LOCK_DESTROY() (void)pthread_mutex_destroy(&SCTP_BASE_VAR(timer_mtx))
#endif
#endif
uint32_t sctp_get_tick_count(void);
TAILQ_HEAD(calloutlist, sctp_callout);
struct sctp_callout {
TAILQ_ENTRY(sctp_callout) tqe;
uint32_t c_time; /* ticks to the event */
void *c_arg; /* function argument */
void (*c_func)(void *); /* function to call */
int c_flags; /* state of this entry */
};
typedef struct sctp_callout sctp_os_timer_t;
#define SCTP_CALLOUT_ACTIVE 0x0002 /* callout is currently active */
#define SCTP_CALLOUT_PENDING 0x0004 /* callout is waiting for timeout */
void sctp_os_timer_init(sctp_os_timer_t *tmr);
/* Returns 1 if pending timer was rescheduled, 0 otherwise. */
int sctp_os_timer_start(sctp_os_timer_t *, uint32_t, void (*)(void *), void *);
/* Returns 1 if pending timer was stopped, 0 otherwise. */
int sctp_os_timer_stop(sctp_os_timer_t *);
void sctp_handle_tick(uint32_t);
#define SCTP_OS_TIMER_INIT sctp_os_timer_init
/*
* NOTE: The next two shouldn't be called directly outside of sctp_timer_start()
* and sctp_timer_stop(), since they don't handle incrementing/decrementing
* relevant reference counts.
*/
#define SCTP_OS_TIMER_START sctp_os_timer_start
#define SCTP_OS_TIMER_STOP sctp_os_timer_stop
/* MT FIXME: Is the following correct? */
#define SCTP_OS_TIMER_STOP_DRAIN SCTP_OS_TIMER_STOP
#define SCTP_OS_TIMER_PENDING(tmr) ((tmr)->c_flags & SCTP_CALLOUT_PENDING)
#define SCTP_OS_TIMER_ACTIVE(tmr) ((tmr)->c_flags & SCTP_CALLOUT_ACTIVE)
#define SCTP_OS_TIMER_DEACTIVATE(tmr) ((tmr)->c_flags &= ~SCTP_CALLOUT_ACTIVE)
#if defined(__Userspace__)
void sctp_start_timer_thread(void);
void sctp_stop_timer_thread(void);
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
void sctp_timeout(void *);
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_crc32.c 362498 2020-06-22 14:36:14Z tuexen $");
#include "opt_sctp.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/gsb_crc32.h>
#include <sys/mbuf.h>
#include <netinet/sctp.h>
#include <netinet/sctp_crc32.h>
#if defined(SCTP) || defined(SCTP_SUPPORT)
#include <netinet/sctp_os.h>
#include <netinet/sctp_pcb.h>
#endif
#else
#include <netinet/sctp_os.h>
#include <netinet/sctp.h>
#include <netinet/sctp_crc32.h>
#include <netinet/sctp_pcb.h>
#endif
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
/**
*
* Routine Description:
*
* Computes the CRC32c checksum for the specified buffer using the slicing by 8
* algorithm over 64 bit quantities.
*
* Arguments:
*
* p_running_crc - pointer to the initial or final remainder value
* used in CRC computations. It should be set to
* non-NULL if the mode argument is equal to CONT or END
* p_buf - the packet buffer where crc computations are being performed
* length - the length of p_buf in bytes
* init_bytes - the number of initial bytes that need to be procesed before
* aligning p_buf to multiples of 4 bytes
* mode - can be any of the following: BEGIN, CONT, END, BODY, ALIGN
*
* Return value:
*
* The computed CRC32c value
*/
/*
* Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved
*
*
* This software program is licensed subject to the BSD License, available at
* http://www.opensource.org/licenses/bsd-license.html.
*
* Abstract:
*
* Tables for software CRC generation
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o32[256] =
{
0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351
};
/*
* end of the CRC lookup table crc_tableil8_o32
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o40[256] =
{
0x00000000, 0x13A29877, 0x274530EE, 0x34E7A899, 0x4E8A61DC, 0x5D28F9AB, 0x69CF5132, 0x7A6DC945,
0x9D14C3B8, 0x8EB65BCF, 0xBA51F356, 0xA9F36B21, 0xD39EA264, 0xC03C3A13, 0xF4DB928A, 0xE7790AFD,
0x3FC5F181, 0x2C6769F6, 0x1880C16F, 0x0B225918, 0x714F905D, 0x62ED082A, 0x560AA0B3, 0x45A838C4,
0xA2D13239, 0xB173AA4E, 0x859402D7, 0x96369AA0, 0xEC5B53E5, 0xFFF9CB92, 0xCB1E630B, 0xD8BCFB7C,
0x7F8BE302, 0x6C297B75, 0x58CED3EC, 0x4B6C4B9B, 0x310182DE, 0x22A31AA9, 0x1644B230, 0x05E62A47,
0xE29F20BA, 0xF13DB8CD, 0xC5DA1054, 0xD6788823, 0xAC154166, 0xBFB7D911, 0x8B507188, 0x98F2E9FF,
0x404E1283, 0x53EC8AF4, 0x670B226D, 0x74A9BA1A, 0x0EC4735F, 0x1D66EB28, 0x298143B1, 0x3A23DBC6,
0xDD5AD13B, 0xCEF8494C, 0xFA1FE1D5, 0xE9BD79A2, 0x93D0B0E7, 0x80722890, 0xB4958009, 0xA737187E,
0xFF17C604, 0xECB55E73, 0xD852F6EA, 0xCBF06E9D, 0xB19DA7D8, 0xA23F3FAF, 0x96D89736, 0x857A0F41,
0x620305BC, 0x71A19DCB, 0x45463552, 0x56E4AD25, 0x2C896460, 0x3F2BFC17, 0x0BCC548E, 0x186ECCF9,
0xC0D23785, 0xD370AFF2, 0xE797076B, 0xF4359F1C, 0x8E585659, 0x9DFACE2E, 0xA91D66B7, 0xBABFFEC0,
0x5DC6F43D, 0x4E646C4A, 0x7A83C4D3, 0x69215CA4, 0x134C95E1, 0x00EE0D96, 0x3409A50F, 0x27AB3D78,
0x809C2506, 0x933EBD71, 0xA7D915E8, 0xB47B8D9F, 0xCE1644DA, 0xDDB4DCAD, 0xE9537434, 0xFAF1EC43,
0x1D88E6BE, 0x0E2A7EC9, 0x3ACDD650, 0x296F4E27, 0x53028762, 0x40A01F15, 0x7447B78C, 0x67E52FFB,
0xBF59D487, 0xACFB4CF0, 0x981CE469, 0x8BBE7C1E, 0xF1D3B55B, 0xE2712D2C, 0xD69685B5, 0xC5341DC2,
0x224D173F, 0x31EF8F48, 0x050827D1, 0x16AABFA6, 0x6CC776E3, 0x7F65EE94, 0x4B82460D, 0x5820DE7A,
0xFBC3FAF9, 0xE861628E, 0xDC86CA17, 0xCF245260, 0xB5499B25, 0xA6EB0352, 0x920CABCB, 0x81AE33BC,
0x66D73941, 0x7575A136, 0x419209AF, 0x523091D8, 0x285D589D, 0x3BFFC0EA, 0x0F186873, 0x1CBAF004,
0xC4060B78, 0xD7A4930F, 0xE3433B96, 0xF0E1A3E1, 0x8A8C6AA4, 0x992EF2D3, 0xADC95A4A, 0xBE6BC23D,
0x5912C8C0, 0x4AB050B7, 0x7E57F82E, 0x6DF56059, 0x1798A91C, 0x043A316B, 0x30DD99F2, 0x237F0185,
0x844819FB, 0x97EA818C, 0xA30D2915, 0xB0AFB162, 0xCAC27827, 0xD960E050, 0xED8748C9, 0xFE25D0BE,
0x195CDA43, 0x0AFE4234, 0x3E19EAAD, 0x2DBB72DA, 0x57D6BB9F, 0x447423E8, 0x70938B71, 0x63311306,
0xBB8DE87A, 0xA82F700D, 0x9CC8D894, 0x8F6A40E3, 0xF50789A6, 0xE6A511D1, 0xD242B948, 0xC1E0213F,
0x26992BC2, 0x353BB3B5, 0x01DC1B2C, 0x127E835B, 0x68134A1E, 0x7BB1D269, 0x4F567AF0, 0x5CF4E287,
0x04D43CFD, 0x1776A48A, 0x23910C13, 0x30339464, 0x4A5E5D21, 0x59FCC556, 0x6D1B6DCF, 0x7EB9F5B8,
0x99C0FF45, 0x8A626732, 0xBE85CFAB, 0xAD2757DC, 0xD74A9E99, 0xC4E806EE, 0xF00FAE77, 0xE3AD3600,
0x3B11CD7C, 0x28B3550B, 0x1C54FD92, 0x0FF665E5, 0x759BACA0, 0x663934D7, 0x52DE9C4E, 0x417C0439,
0xA6050EC4, 0xB5A796B3, 0x81403E2A, 0x92E2A65D, 0xE88F6F18, 0xFB2DF76F, 0xCFCA5FF6, 0xDC68C781,
0x7B5FDFFF, 0x68FD4788, 0x5C1AEF11, 0x4FB87766, 0x35D5BE23, 0x26772654, 0x12908ECD, 0x013216BA,
0xE64B1C47, 0xF5E98430, 0xC10E2CA9, 0xD2ACB4DE, 0xA8C17D9B, 0xBB63E5EC, 0x8F844D75, 0x9C26D502,
0x449A2E7E, 0x5738B609, 0x63DF1E90, 0x707D86E7, 0x0A104FA2, 0x19B2D7D5, 0x2D557F4C, 0x3EF7E73B,
0xD98EEDC6, 0xCA2C75B1, 0xFECBDD28, 0xED69455F, 0x97048C1A, 0x84A6146D, 0xB041BCF4, 0xA3E32483
};
/*
* end of the CRC lookup table crc_tableil8_o40
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o48[256] =
{
0x00000000, 0xA541927E, 0x4F6F520D, 0xEA2EC073, 0x9EDEA41A, 0x3B9F3664, 0xD1B1F617, 0x74F06469,
0x38513EC5, 0x9D10ACBB, 0x773E6CC8, 0xD27FFEB6, 0xA68F9ADF, 0x03CE08A1, 0xE9E0C8D2, 0x4CA15AAC,
0x70A27D8A, 0xD5E3EFF4, 0x3FCD2F87, 0x9A8CBDF9, 0xEE7CD990, 0x4B3D4BEE, 0xA1138B9D, 0x045219E3,
0x48F3434F, 0xEDB2D131, 0x079C1142, 0xA2DD833C, 0xD62DE755, 0x736C752B, 0x9942B558, 0x3C032726,
0xE144FB14, 0x4405696A, 0xAE2BA919, 0x0B6A3B67, 0x7F9A5F0E, 0xDADBCD70, 0x30F50D03, 0x95B49F7D,
0xD915C5D1, 0x7C5457AF, 0x967A97DC, 0x333B05A2, 0x47CB61CB, 0xE28AF3B5, 0x08A433C6, 0xADE5A1B8,
0x91E6869E, 0x34A714E0, 0xDE89D493, 0x7BC846ED, 0x0F382284, 0xAA79B0FA, 0x40577089, 0xE516E2F7,
0xA9B7B85B, 0x0CF62A25, 0xE6D8EA56, 0x43997828, 0x37691C41, 0x92288E3F, 0x78064E4C, 0xDD47DC32,
0xC76580D9, 0x622412A7, 0x880AD2D4, 0x2D4B40AA, 0x59BB24C3, 0xFCFAB6BD, 0x16D476CE, 0xB395E4B0,
0xFF34BE1C, 0x5A752C62, 0xB05BEC11, 0x151A7E6F, 0x61EA1A06, 0xC4AB8878, 0x2E85480B, 0x8BC4DA75,
0xB7C7FD53, 0x12866F2D, 0xF8A8AF5E, 0x5DE93D20, 0x29195949, 0x8C58CB37, 0x66760B44, 0xC337993A,
0x8F96C396, 0x2AD751E8, 0xC0F9919B, 0x65B803E5, 0x1148678C, 0xB409F5F2, 0x5E273581, 0xFB66A7FF,
0x26217BCD, 0x8360E9B3, 0x694E29C0, 0xCC0FBBBE, 0xB8FFDFD7, 0x1DBE4DA9, 0xF7908DDA, 0x52D11FA4,
0x1E704508, 0xBB31D776, 0x511F1705, 0xF45E857B, 0x80AEE112, 0x25EF736C, 0xCFC1B31F, 0x6A802161,
0x56830647, 0xF3C29439, 0x19EC544A, 0xBCADC634, 0xC85DA25D, 0x6D1C3023, 0x8732F050, 0x2273622E,
0x6ED23882, 0xCB93AAFC, 0x21BD6A8F, 0x84FCF8F1, 0xF00C9C98, 0x554D0EE6, 0xBF63CE95, 0x1A225CEB,
0x8B277743, 0x2E66E53D, 0xC448254E, 0x6109B730, 0x15F9D359, 0xB0B84127, 0x5A968154, 0xFFD7132A,
0xB3764986, 0x1637DBF8, 0xFC191B8B, 0x595889F5, 0x2DA8ED9C, 0x88E97FE2, 0x62C7BF91, 0xC7862DEF,
0xFB850AC9, 0x5EC498B7, 0xB4EA58C4, 0x11ABCABA, 0x655BAED3, 0xC01A3CAD, 0x2A34FCDE, 0x8F756EA0,
0xC3D4340C, 0x6695A672, 0x8CBB6601, 0x29FAF47F, 0x5D0A9016, 0xF84B0268, 0x1265C21B, 0xB7245065,
0x6A638C57, 0xCF221E29, 0x250CDE5A, 0x804D4C24, 0xF4BD284D, 0x51FCBA33, 0xBBD27A40, 0x1E93E83E,
0x5232B292, 0xF77320EC, 0x1D5DE09F, 0xB81C72E1, 0xCCEC1688, 0x69AD84F6, 0x83834485, 0x26C2D6FB,
0x1AC1F1DD, 0xBF8063A3, 0x55AEA3D0, 0xF0EF31AE, 0x841F55C7, 0x215EC7B9, 0xCB7007CA, 0x6E3195B4,
0x2290CF18, 0x87D15D66, 0x6DFF9D15, 0xC8BE0F6B, 0xBC4E6B02, 0x190FF97C, 0xF321390F, 0x5660AB71,
0x4C42F79A, 0xE90365E4, 0x032DA597, 0xA66C37E9, 0xD29C5380, 0x77DDC1FE, 0x9DF3018D, 0x38B293F3,
0x7413C95F, 0xD1525B21, 0x3B7C9B52, 0x9E3D092C, 0xEACD6D45, 0x4F8CFF3B, 0xA5A23F48, 0x00E3AD36,
0x3CE08A10, 0x99A1186E, 0x738FD81D, 0xD6CE4A63, 0xA23E2E0A, 0x077FBC74, 0xED517C07, 0x4810EE79,
0x04B1B4D5, 0xA1F026AB, 0x4BDEE6D8, 0xEE9F74A6, 0x9A6F10CF, 0x3F2E82B1, 0xD50042C2, 0x7041D0BC,
0xAD060C8E, 0x08479EF0, 0xE2695E83, 0x4728CCFD, 0x33D8A894, 0x96993AEA, 0x7CB7FA99, 0xD9F668E7,
0x9557324B, 0x3016A035, 0xDA386046, 0x7F79F238, 0x0B899651, 0xAEC8042F, 0x44E6C45C, 0xE1A75622,
0xDDA47104, 0x78E5E37A, 0x92CB2309, 0x378AB177, 0x437AD51E, 0xE63B4760, 0x0C158713, 0xA954156D,
0xE5F54FC1, 0x40B4DDBF, 0xAA9A1DCC, 0x0FDB8FB2, 0x7B2BEBDB, 0xDE6A79A5, 0x3444B9D6, 0x91052BA8
};
/*
* end of the CRC lookup table crc_tableil8_o48
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o56[256] =
{
0x00000000, 0xDD45AAB8, 0xBF672381, 0x62228939, 0x7B2231F3, 0xA6679B4B, 0xC4451272, 0x1900B8CA,
0xF64463E6, 0x2B01C95E, 0x49234067, 0x9466EADF, 0x8D665215, 0x5023F8AD, 0x32017194, 0xEF44DB2C,
0xE964B13D, 0x34211B85, 0x560392BC, 0x8B463804, 0x924680CE, 0x4F032A76, 0x2D21A34F, 0xF06409F7,
0x1F20D2DB, 0xC2657863, 0xA047F15A, 0x7D025BE2, 0x6402E328, 0xB9474990, 0xDB65C0A9, 0x06206A11,
0xD725148B, 0x0A60BE33, 0x6842370A, 0xB5079DB2, 0xAC072578, 0x71428FC0, 0x136006F9, 0xCE25AC41,
0x2161776D, 0xFC24DDD5, 0x9E0654EC, 0x4343FE54, 0x5A43469E, 0x8706EC26, 0xE524651F, 0x3861CFA7,
0x3E41A5B6, 0xE3040F0E, 0x81268637, 0x5C632C8F, 0x45639445, 0x98263EFD, 0xFA04B7C4, 0x27411D7C,
0xC805C650, 0x15406CE8, 0x7762E5D1, 0xAA274F69, 0xB327F7A3, 0x6E625D1B, 0x0C40D422, 0xD1057E9A,
0xABA65FE7, 0x76E3F55F, 0x14C17C66, 0xC984D6DE, 0xD0846E14, 0x0DC1C4AC, 0x6FE34D95, 0xB2A6E72D,
0x5DE23C01, 0x80A796B9, 0xE2851F80, 0x3FC0B538, 0x26C00DF2, 0xFB85A74A, 0x99A72E73, 0x44E284CB,
0x42C2EEDA, 0x9F874462, 0xFDA5CD5B, 0x20E067E3, 0x39E0DF29, 0xE4A57591, 0x8687FCA8, 0x5BC25610,
0xB4868D3C, 0x69C32784, 0x0BE1AEBD, 0xD6A40405, 0xCFA4BCCF, 0x12E11677, 0x70C39F4E, 0xAD8635F6,
0x7C834B6C, 0xA1C6E1D4, 0xC3E468ED, 0x1EA1C255, 0x07A17A9F, 0xDAE4D027, 0xB8C6591E, 0x6583F3A6,
0x8AC7288A, 0x57828232, 0x35A00B0B, 0xE8E5A1B3, 0xF1E51979, 0x2CA0B3C1, 0x4E823AF8, 0x93C79040,
0x95E7FA51, 0x48A250E9, 0x2A80D9D0, 0xF7C57368, 0xEEC5CBA2, 0x3380611A, 0x51A2E823, 0x8CE7429B,
0x63A399B7, 0xBEE6330F, 0xDCC4BA36, 0x0181108E, 0x1881A844, 0xC5C402FC, 0xA7E68BC5, 0x7AA3217D,
0x52A0C93F, 0x8FE56387, 0xEDC7EABE, 0x30824006, 0x2982F8CC, 0xF4C75274, 0x96E5DB4D, 0x4BA071F5,
0xA4E4AAD9, 0x79A10061, 0x1B838958, 0xC6C623E0, 0xDFC69B2A, 0x02833192, 0x60A1B8AB, 0xBDE41213,
0xBBC47802, 0x6681D2BA, 0x04A35B83, 0xD9E6F13B, 0xC0E649F1, 0x1DA3E349, 0x7F816A70, 0xA2C4C0C8,
0x4D801BE4, 0x90C5B15C, 0xF2E73865, 0x2FA292DD, 0x36A22A17, 0xEBE780AF, 0x89C50996, 0x5480A32E,
0x8585DDB4, 0x58C0770C, 0x3AE2FE35, 0xE7A7548D, 0xFEA7EC47, 0x23E246FF, 0x41C0CFC6, 0x9C85657E,
0x73C1BE52, 0xAE8414EA, 0xCCA69DD3, 0x11E3376B, 0x08E38FA1, 0xD5A62519, 0xB784AC20, 0x6AC10698,
0x6CE16C89, 0xB1A4C631, 0xD3864F08, 0x0EC3E5B0, 0x17C35D7A, 0xCA86F7C2, 0xA8A47EFB, 0x75E1D443,
0x9AA50F6F, 0x47E0A5D7, 0x25C22CEE, 0xF8878656, 0xE1873E9C, 0x3CC29424, 0x5EE01D1D, 0x83A5B7A5,
0xF90696D8, 0x24433C60, 0x4661B559, 0x9B241FE1, 0x8224A72B, 0x5F610D93, 0x3D4384AA, 0xE0062E12,
0x0F42F53E, 0xD2075F86, 0xB025D6BF, 0x6D607C07, 0x7460C4CD, 0xA9256E75, 0xCB07E74C, 0x16424DF4,
0x106227E5, 0xCD278D5D, 0xAF050464, 0x7240AEDC, 0x6B401616, 0xB605BCAE, 0xD4273597, 0x09629F2F,
0xE6264403, 0x3B63EEBB, 0x59416782, 0x8404CD3A, 0x9D0475F0, 0x4041DF48, 0x22635671, 0xFF26FCC9,
0x2E238253, 0xF36628EB, 0x9144A1D2, 0x4C010B6A, 0x5501B3A0, 0x88441918, 0xEA669021, 0x37233A99,
0xD867E1B5, 0x05224B0D, 0x6700C234, 0xBA45688C, 0xA345D046, 0x7E007AFE, 0x1C22F3C7, 0xC167597F,
0xC747336E, 0x1A0299D6, 0x782010EF, 0xA565BA57, 0xBC65029D, 0x6120A825, 0x0302211C, 0xDE478BA4,
0x31035088, 0xEC46FA30, 0x8E647309, 0x5321D9B1, 0x4A21617B, 0x9764CBC3, 0xF54642FA, 0x2803E842
};
/*
* end of the CRC lookup table crc_tableil8_o56
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o64[256] =
{
0x00000000, 0x38116FAC, 0x7022DF58, 0x4833B0F4, 0xE045BEB0, 0xD854D11C, 0x906761E8, 0xA8760E44,
0xC5670B91, 0xFD76643D, 0xB545D4C9, 0x8D54BB65, 0x2522B521, 0x1D33DA8D, 0x55006A79, 0x6D1105D5,
0x8F2261D3, 0xB7330E7F, 0xFF00BE8B, 0xC711D127, 0x6F67DF63, 0x5776B0CF, 0x1F45003B, 0x27546F97,
0x4A456A42, 0x725405EE, 0x3A67B51A, 0x0276DAB6, 0xAA00D4F2, 0x9211BB5E, 0xDA220BAA, 0xE2336406,
0x1BA8B557, 0x23B9DAFB, 0x6B8A6A0F, 0x539B05A3, 0xFBED0BE7, 0xC3FC644B, 0x8BCFD4BF, 0xB3DEBB13,
0xDECFBEC6, 0xE6DED16A, 0xAEED619E, 0x96FC0E32, 0x3E8A0076, 0x069B6FDA, 0x4EA8DF2E, 0x76B9B082,
0x948AD484, 0xAC9BBB28, 0xE4A80BDC, 0xDCB96470, 0x74CF6A34, 0x4CDE0598, 0x04EDB56C, 0x3CFCDAC0,
0x51EDDF15, 0x69FCB0B9, 0x21CF004D, 0x19DE6FE1, 0xB1A861A5, 0x89B90E09, 0xC18ABEFD, 0xF99BD151,
0x37516AAE, 0x0F400502, 0x4773B5F6, 0x7F62DA5A, 0xD714D41E, 0xEF05BBB2, 0xA7360B46, 0x9F2764EA,
0xF236613F, 0xCA270E93, 0x8214BE67, 0xBA05D1CB, 0x1273DF8F, 0x2A62B023, 0x625100D7, 0x5A406F7B,
0xB8730B7D, 0x806264D1, 0xC851D425, 0xF040BB89, 0x5836B5CD, 0x6027DA61, 0x28146A95, 0x10050539,
0x7D1400EC, 0x45056F40, 0x0D36DFB4, 0x3527B018, 0x9D51BE5C, 0xA540D1F0, 0xED736104, 0xD5620EA8,
0x2CF9DFF9, 0x14E8B055, 0x5CDB00A1, 0x64CA6F0D, 0xCCBC6149, 0xF4AD0EE5, 0xBC9EBE11, 0x848FD1BD,
0xE99ED468, 0xD18FBBC4, 0x99BC0B30, 0xA1AD649C, 0x09DB6AD8, 0x31CA0574, 0x79F9B580, 0x41E8DA2C,
0xA3DBBE2A, 0x9BCAD186, 0xD3F96172, 0xEBE80EDE, 0x439E009A, 0x7B8F6F36, 0x33BCDFC2, 0x0BADB06E,
0x66BCB5BB, 0x5EADDA17, 0x169E6AE3, 0x2E8F054F, 0x86F90B0B, 0xBEE864A7, 0xF6DBD453, 0xCECABBFF,
0x6EA2D55C, 0x56B3BAF0, 0x1E800A04, 0x269165A8, 0x8EE76BEC, 0xB6F60440, 0xFEC5B4B4, 0xC6D4DB18,
0xABC5DECD, 0x93D4B161, 0xDBE70195, 0xE3F66E39, 0x4B80607D, 0x73910FD1, 0x3BA2BF25, 0x03B3D089,
0xE180B48F, 0xD991DB23, 0x91A26BD7, 0xA9B3047B, 0x01C50A3F, 0x39D46593, 0x71E7D567, 0x49F6BACB,
0x24E7BF1E, 0x1CF6D0B2, 0x54C56046, 0x6CD40FEA, 0xC4A201AE, 0xFCB36E02, 0xB480DEF6, 0x8C91B15A,
0x750A600B, 0x4D1B0FA7, 0x0528BF53, 0x3D39D0FF, 0x954FDEBB, 0xAD5EB117, 0xE56D01E3, 0xDD7C6E4F,
0xB06D6B9A, 0x887C0436, 0xC04FB4C2, 0xF85EDB6E, 0x5028D52A, 0x6839BA86, 0x200A0A72, 0x181B65DE,
0xFA2801D8, 0xC2396E74, 0x8A0ADE80, 0xB21BB12C, 0x1A6DBF68, 0x227CD0C4, 0x6A4F6030, 0x525E0F9C,
0x3F4F0A49, 0x075E65E5, 0x4F6DD511, 0x777CBABD, 0xDF0AB4F9, 0xE71BDB55, 0xAF286BA1, 0x9739040D,
0x59F3BFF2, 0x61E2D05E, 0x29D160AA, 0x11C00F06, 0xB9B60142, 0x81A76EEE, 0xC994DE1A, 0xF185B1B6,
0x9C94B463, 0xA485DBCF, 0xECB66B3B, 0xD4A70497, 0x7CD10AD3, 0x44C0657F, 0x0CF3D58B, 0x34E2BA27,
0xD6D1DE21, 0xEEC0B18D, 0xA6F30179, 0x9EE26ED5, 0x36946091, 0x0E850F3D, 0x46B6BFC9, 0x7EA7D065,
0x13B6D5B0, 0x2BA7BA1C, 0x63940AE8, 0x5B856544, 0xF3F36B00, 0xCBE204AC, 0x83D1B458, 0xBBC0DBF4,
0x425B0AA5, 0x7A4A6509, 0x3279D5FD, 0x0A68BA51, 0xA21EB415, 0x9A0FDBB9, 0xD23C6B4D, 0xEA2D04E1,
0x873C0134, 0xBF2D6E98, 0xF71EDE6C, 0xCF0FB1C0, 0x6779BF84, 0x5F68D028, 0x175B60DC, 0x2F4A0F70,
0xCD796B76, 0xF56804DA, 0xBD5BB42E, 0x854ADB82, 0x2D3CD5C6, 0x152DBA6A, 0x5D1E0A9E, 0x650F6532,
0x081E60E7, 0x300F0F4B, 0x783CBFBF, 0x402DD013, 0xE85BDE57, 0xD04AB1FB, 0x9879010F, 0xA0686EA3
};
/*
* end of the CRC lookup table crc_tableil8_o64
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o72[256] =
{
0x00000000, 0xEF306B19, 0xDB8CA0C3, 0x34BCCBDA, 0xB2F53777, 0x5DC55C6E, 0x697997B4, 0x8649FCAD,
0x6006181F, 0x8F367306, 0xBB8AB8DC, 0x54BAD3C5, 0xD2F32F68, 0x3DC34471, 0x097F8FAB, 0xE64FE4B2,
0xC00C303E, 0x2F3C5B27, 0x1B8090FD, 0xF4B0FBE4, 0x72F90749, 0x9DC96C50, 0xA975A78A, 0x4645CC93,
0xA00A2821, 0x4F3A4338, 0x7B8688E2, 0x94B6E3FB, 0x12FF1F56, 0xFDCF744F, 0xC973BF95, 0x2643D48C,
0x85F4168D, 0x6AC47D94, 0x5E78B64E, 0xB148DD57, 0x370121FA, 0xD8314AE3, 0xEC8D8139, 0x03BDEA20,
0xE5F20E92, 0x0AC2658B, 0x3E7EAE51, 0xD14EC548, 0x570739E5, 0xB83752FC, 0x8C8B9926, 0x63BBF23F,
0x45F826B3, 0xAAC84DAA, 0x9E748670, 0x7144ED69, 0xF70D11C4, 0x183D7ADD, 0x2C81B107, 0xC3B1DA1E,
0x25FE3EAC, 0xCACE55B5, 0xFE729E6F, 0x1142F576, 0x970B09DB, 0x783B62C2, 0x4C87A918, 0xA3B7C201,
0x0E045BEB, 0xE13430F2, 0xD588FB28, 0x3AB89031, 0xBCF16C9C, 0x53C10785, 0x677DCC5F, 0x884DA746,
0x6E0243F4, 0x813228ED, 0xB58EE337, 0x5ABE882E, 0xDCF77483, 0x33C71F9A, 0x077BD440, 0xE84BBF59,
0xCE086BD5, 0x213800CC, 0x1584CB16, 0xFAB4A00F, 0x7CFD5CA2, 0x93CD37BB, 0xA771FC61, 0x48419778,
0xAE0E73CA, 0x413E18D3, 0x7582D309, 0x9AB2B810, 0x1CFB44BD, 0xF3CB2FA4, 0xC777E47E, 0x28478F67,
0x8BF04D66, 0x64C0267F, 0x507CEDA5, 0xBF4C86BC, 0x39057A11, 0xD6351108, 0xE289DAD2, 0x0DB9B1CB,
0xEBF65579, 0x04C63E60, 0x307AF5BA, 0xDF4A9EA3, 0x5903620E, 0xB6330917, 0x828FC2CD, 0x6DBFA9D4,
0x4BFC7D58, 0xA4CC1641, 0x9070DD9B, 0x7F40B682, 0xF9094A2F, 0x16392136, 0x2285EAEC, 0xCDB581F5,
0x2BFA6547, 0xC4CA0E5E, 0xF076C584, 0x1F46AE9D, 0x990F5230, 0x763F3929, 0x4283F2F3, 0xADB399EA,
0x1C08B7D6, 0xF338DCCF, 0xC7841715, 0x28B47C0C, 0xAEFD80A1, 0x41CDEBB8, 0x75712062, 0x9A414B7B,
0x7C0EAFC9, 0x933EC4D0, 0xA7820F0A, 0x48B26413, 0xCEFB98BE, 0x21CBF3A7, 0x1577387D, 0xFA475364,
0xDC0487E8, 0x3334ECF1, 0x0788272B, 0xE8B84C32, 0x6EF1B09F, 0x81C1DB86, 0xB57D105C, 0x5A4D7B45,
0xBC029FF7, 0x5332F4EE, 0x678E3F34, 0x88BE542D, 0x0EF7A880, 0xE1C7C399, 0xD57B0843, 0x3A4B635A,
0x99FCA15B, 0x76CCCA42, 0x42700198, 0xAD406A81, 0x2B09962C, 0xC439FD35, 0xF08536EF, 0x1FB55DF6,
0xF9FAB944, 0x16CAD25D, 0x22761987, 0xCD46729E, 0x4B0F8E33, 0xA43FE52A, 0x90832EF0, 0x7FB345E9,
0x59F09165, 0xB6C0FA7C, 0x827C31A6, 0x6D4C5ABF, 0xEB05A612, 0x0435CD0B, 0x308906D1, 0xDFB96DC8,
0x39F6897A, 0xD6C6E263, 0xE27A29B9, 0x0D4A42A0, 0x8B03BE0D, 0x6433D514, 0x508F1ECE, 0xBFBF75D7,
0x120CEC3D, 0xFD3C8724, 0xC9804CFE, 0x26B027E7, 0xA0F9DB4A, 0x4FC9B053, 0x7B757B89, 0x94451090,
0x720AF422, 0x9D3A9F3B, 0xA98654E1, 0x46B63FF8, 0xC0FFC355, 0x2FCFA84C, 0x1B736396, 0xF443088F,
0xD200DC03, 0x3D30B71A, 0x098C7CC0, 0xE6BC17D9, 0x60F5EB74, 0x8FC5806D, 0xBB794BB7, 0x544920AE,
0xB206C41C, 0x5D36AF05, 0x698A64DF, 0x86BA0FC6, 0x00F3F36B, 0xEFC39872, 0xDB7F53A8, 0x344F38B1,
0x97F8FAB0, 0x78C891A9, 0x4C745A73, 0xA344316A, 0x250DCDC7, 0xCA3DA6DE, 0xFE816D04, 0x11B1061D,
0xF7FEE2AF, 0x18CE89B6, 0x2C72426C, 0xC3422975, 0x450BD5D8, 0xAA3BBEC1, 0x9E87751B, 0x71B71E02,
0x57F4CA8E, 0xB8C4A197, 0x8C786A4D, 0x63480154, 0xE501FDF9, 0x0A3196E0, 0x3E8D5D3A, 0xD1BD3623,
0x37F2D291, 0xD8C2B988, 0xEC7E7252, 0x034E194B, 0x8507E5E6, 0x6A378EFF, 0x5E8B4525, 0xB1BB2E3C
};
/*
* end of the CRC lookup table crc_tableil8_o72
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o80[256] =
{
0x00000000, 0x68032CC8, 0xD0065990, 0xB8057558, 0xA5E0C5D1, 0xCDE3E919, 0x75E69C41, 0x1DE5B089,
0x4E2DFD53, 0x262ED19B, 0x9E2BA4C3, 0xF628880B, 0xEBCD3882, 0x83CE144A, 0x3BCB6112, 0x53C84DDA,
0x9C5BFAA6, 0xF458D66E, 0x4C5DA336, 0x245E8FFE, 0x39BB3F77, 0x51B813BF, 0xE9BD66E7, 0x81BE4A2F,
0xD27607F5, 0xBA752B3D, 0x02705E65, 0x6A7372AD, 0x7796C224, 0x1F95EEEC, 0xA7909BB4, 0xCF93B77C,
0x3D5B83BD, 0x5558AF75, 0xED5DDA2D, 0x855EF6E5, 0x98BB466C, 0xF0B86AA4, 0x48BD1FFC, 0x20BE3334,
0x73767EEE, 0x1B755226, 0xA370277E, 0xCB730BB6, 0xD696BB3F, 0xBE9597F7, 0x0690E2AF, 0x6E93CE67,
0xA100791B, 0xC90355D3, 0x7106208B, 0x19050C43, 0x04E0BCCA, 0x6CE39002, 0xD4E6E55A, 0xBCE5C992,
0xEF2D8448, 0x872EA880, 0x3F2BDDD8, 0x5728F110, 0x4ACD4199, 0x22CE6D51, 0x9ACB1809, 0xF2C834C1,
0x7AB7077A, 0x12B42BB2, 0xAAB15EEA, 0xC2B27222, 0xDF57C2AB, 0xB754EE63, 0x0F519B3B, 0x6752B7F3,
0x349AFA29, 0x5C99D6E1, 0xE49CA3B9, 0x8C9F8F71, 0x917A3FF8, 0xF9791330, 0x417C6668, 0x297F4AA0,
0xE6ECFDDC, 0x8EEFD114, 0x36EAA44C, 0x5EE98884, 0x430C380D, 0x2B0F14C5, 0x930A619D, 0xFB094D55,
0xA8C1008F, 0xC0C22C47, 0x78C7591F, 0x10C475D7, 0x0D21C55E, 0x6522E996, 0xDD279CCE, 0xB524B006,
0x47EC84C7, 0x2FEFA80F, 0x97EADD57, 0xFFE9F19F, 0xE20C4116, 0x8A0F6DDE, 0x320A1886, 0x5A09344E,
0x09C17994, 0x61C2555C, 0xD9C72004, 0xB1C40CCC, 0xAC21BC45, 0xC422908D, 0x7C27E5D5, 0x1424C91D,
0xDBB77E61, 0xB3B452A9, 0x0BB127F1, 0x63B20B39, 0x7E57BBB0, 0x16549778, 0xAE51E220, 0xC652CEE8,
0x959A8332, 0xFD99AFFA, 0x459CDAA2, 0x2D9FF66A, 0x307A46E3, 0x58796A2B, 0xE07C1F73, 0x887F33BB,
0xF56E0EF4, 0x9D6D223C, 0x25685764, 0x4D6B7BAC, 0x508ECB25, 0x388DE7ED, 0x808892B5, 0xE88BBE7D,
0xBB43F3A7, 0xD340DF6F, 0x6B45AA37, 0x034686FF, 0x1EA33676, 0x76A01ABE, 0xCEA56FE6, 0xA6A6432E,
0x6935F452, 0x0136D89A, 0xB933ADC2, 0xD130810A, 0xCCD53183, 0xA4D61D4B, 0x1CD36813, 0x74D044DB,
0x27180901, 0x4F1B25C9, 0xF71E5091, 0x9F1D7C59, 0x82F8CCD0, 0xEAFBE018, 0x52FE9540, 0x3AFDB988,
0xC8358D49, 0xA036A181, 0x1833D4D9, 0x7030F811, 0x6DD54898, 0x05D66450, 0xBDD31108, 0xD5D03DC0,
0x8618701A, 0xEE1B5CD2, 0x561E298A, 0x3E1D0542, 0x23F8B5CB, 0x4BFB9903, 0xF3FEEC5B, 0x9BFDC093,
0x546E77EF, 0x3C6D5B27, 0x84682E7F, 0xEC6B02B7, 0xF18EB23E, 0x998D9EF6, 0x2188EBAE, 0x498BC766,
0x1A438ABC, 0x7240A674, 0xCA45D32C, 0xA246FFE4, 0xBFA34F6D, 0xD7A063A5, 0x6FA516FD, 0x07A63A35,
0x8FD9098E, 0xE7DA2546, 0x5FDF501E, 0x37DC7CD6, 0x2A39CC5F, 0x423AE097, 0xFA3F95CF, 0x923CB907,
0xC1F4F4DD, 0xA9F7D815, 0x11F2AD4D, 0x79F18185, 0x6414310C, 0x0C171DC4, 0xB412689C, 0xDC114454,
0x1382F328, 0x7B81DFE0, 0xC384AAB8, 0xAB878670, 0xB66236F9, 0xDE611A31, 0x66646F69, 0x0E6743A1,
0x5DAF0E7B, 0x35AC22B3, 0x8DA957EB, 0xE5AA7B23, 0xF84FCBAA, 0x904CE762, 0x2849923A, 0x404ABEF2,
0xB2828A33, 0xDA81A6FB, 0x6284D3A3, 0x0A87FF6B, 0x17624FE2, 0x7F61632A, 0xC7641672, 0xAF673ABA,
0xFCAF7760, 0x94AC5BA8, 0x2CA92EF0, 0x44AA0238, 0x594FB2B1, 0x314C9E79, 0x8949EB21, 0xE14AC7E9,
0x2ED97095, 0x46DA5C5D, 0xFEDF2905, 0x96DC05CD, 0x8B39B544, 0xE33A998C, 0x5B3FECD4, 0x333CC01C,
0x60F48DC6, 0x08F7A10E, 0xB0F2D456, 0xD8F1F89E, 0xC5144817, 0xAD1764DF, 0x15121187, 0x7D113D4F
};
/*
* end of the CRC lookup table crc_tableil8_o80
*/
/*
* The following CRC lookup table was generated automagically using the
* following model parameters:
*
* Generator Polynomial = ................. 0x1EDC6F41
* Generator Polynomial Length = .......... 32 bits
* Reflected Bits = ....................... TRUE
* Table Generation Offset = .............. 32 bits
* Number of Slices = ..................... 8 slices
* Slice Lengths = ........................ 8 8 8 8 8 8 8 8
* Directory Name = ....................... .\
* File Name = ............................ 8x256_tables.c
*/
static const uint32_t sctp_crc_tableil8_o88[256] =
{
0x00000000, 0x493C7D27, 0x9278FA4E, 0xDB448769, 0x211D826D, 0x6821FF4A, 0xB3657823, 0xFA590504,
0x423B04DA, 0x0B0779FD, 0xD043FE94, 0x997F83B3, 0x632686B7, 0x2A1AFB90, 0xF15E7CF9, 0xB86201DE,
0x847609B4, 0xCD4A7493, 0x160EF3FA, 0x5F328EDD, 0xA56B8BD9, 0xEC57F6FE, 0x37137197, 0x7E2F0CB0,
0xC64D0D6E, 0x8F717049, 0x5435F720, 0x1D098A07, 0xE7508F03, 0xAE6CF224, 0x7528754D, 0x3C14086A,
0x0D006599, 0x443C18BE, 0x9F789FD7, 0xD644E2F0, 0x2C1DE7F4, 0x65219AD3, 0xBE651DBA, 0xF759609D,
0x4F3B6143, 0x06071C64, 0xDD439B0D, 0x947FE62A, 0x6E26E32E, 0x271A9E09, 0xFC5E1960, 0xB5626447,
0x89766C2D, 0xC04A110A, 0x1B0E9663, 0x5232EB44, 0xA86BEE40, 0xE1579367, 0x3A13140E, 0x732F6929,
0xCB4D68F7, 0x827115D0, 0x593592B9, 0x1009EF9E, 0xEA50EA9A, 0xA36C97BD, 0x782810D4, 0x31146DF3,
0x1A00CB32, 0x533CB615, 0x8878317C, 0xC1444C5B, 0x3B1D495F, 0x72213478, 0xA965B311, 0xE059CE36,
0x583BCFE8, 0x1107B2CF, 0xCA4335A6, 0x837F4881, 0x79264D85, 0x301A30A2, 0xEB5EB7CB, 0xA262CAEC,
0x9E76C286, 0xD74ABFA1, 0x0C0E38C8, 0x453245EF, 0xBF6B40EB, 0xF6573DCC, 0x2D13BAA5, 0x642FC782,
0xDC4DC65C, 0x9571BB7B, 0x4E353C12, 0x07094135, 0xFD504431, 0xB46C3916, 0x6F28BE7F, 0x2614C358,
0x1700AEAB, 0x5E3CD38C, 0x857854E5, 0xCC4429C2, 0x361D2CC6, 0x7F2151E1, 0xA465D688, 0xED59ABAF,
0x553BAA71, 0x1C07D756, 0xC743503F, 0x8E7F2D18, 0x7426281C, 0x3D1A553B, 0xE65ED252, 0xAF62AF75,
0x9376A71F, 0xDA4ADA38, 0x010E5D51, 0x48322076, 0xB26B2572, 0xFB575855, 0x2013DF3C, 0x692FA21B,
0xD14DA3C5, 0x9871DEE2, 0x4335598B, 0x0A0924AC, 0xF05021A8, 0xB96C5C8F, 0x6228DBE6, 0x2B14A6C1,
0x34019664, 0x7D3DEB43, 0xA6796C2A, 0xEF45110D, 0x151C1409, 0x5C20692E, 0x8764EE47, 0xCE589360,
0x763A92BE, 0x3F06EF99, 0xE44268F0, 0xAD7E15D7, 0x572710D3, 0x1E1B6DF4, 0xC55FEA9D, 0x8C6397BA,
0xB0779FD0, 0xF94BE2F7, 0x220F659E, 0x6B3318B9, 0x916A1DBD, 0xD856609A, 0x0312E7F3, 0x4A2E9AD4,
0xF24C9B0A, 0xBB70E62D, 0x60346144, 0x29081C63, 0xD3511967, 0x9A6D6440, 0x4129E329, 0x08159E0E,
0x3901F3FD, 0x703D8EDA, 0xAB7909B3, 0xE2457494, 0x181C7190, 0x51200CB7, 0x8A648BDE, 0xC358F6F9,
0x7B3AF727, 0x32068A00, 0xE9420D69, 0xA07E704E, 0x5A27754A, 0x131B086D, 0xC85F8F04, 0x8163F223,
0xBD77FA49, 0xF44B876E, 0x2F0F0007, 0x66337D20, 0x9C6A7824, 0xD5560503, 0x0E12826A, 0x472EFF4D,
0xFF4CFE93, 0xB67083B4, 0x6D3404DD, 0x240879FA, 0xDE517CFE, 0x976D01D9, 0x4C2986B0, 0x0515FB97,
0x2E015D56, 0x673D2071, 0xBC79A718, 0xF545DA3F, 0x0F1CDF3B, 0x4620A21C, 0x9D642575, 0xD4585852,
0x6C3A598C, 0x250624AB, 0xFE42A3C2, 0xB77EDEE5, 0x4D27DBE1, 0x041BA6C6, 0xDF5F21AF, 0x96635C88,
0xAA7754E2, 0xE34B29C5, 0x380FAEAC, 0x7133D38B, 0x8B6AD68F, 0xC256ABA8, 0x19122CC1, 0x502E51E6,
0xE84C5038, 0xA1702D1F, 0x7A34AA76, 0x3308D751, 0xC951D255, 0x806DAF72, 0x5B29281B, 0x1215553C,
0x230138CF, 0x6A3D45E8, 0xB179C281, 0xF845BFA6, 0x021CBAA2, 0x4B20C785, 0x906440EC, 0xD9583DCB,
0x613A3C15, 0x28064132, 0xF342C65B, 0xBA7EBB7C, 0x4027BE78, 0x091BC35F, 0xD25F4436, 0x9B633911,
0xA777317B, 0xEE4B4C5C, 0x350FCB35, 0x7C33B612, 0x866AB316, 0xCF56CE31, 0x14124958, 0x5D2E347F,
0xE54C35A1, 0xAC704886, 0x7734CFEF, 0x3E08B2C8, 0xC451B7CC, 0x8D6DCAEB, 0x56294D82, 0x1F1530A5
};
/*
* end of the CRC lookup table crc_tableil8_o88
*/
static uint32_t
sctp_crc32c_sb8_64_bit(uint32_t crc,
const unsigned char *p_buf,
uint32_t length,
uint32_t init_bytes)
{
uint32_t li;
uint32_t term1, term2;
uint32_t running_length;
uint32_t end_bytes;
running_length = ((length - init_bytes) / 8) * 8;
end_bytes = length - init_bytes - running_length;
for (li = 0; li < init_bytes; li++)
crc = sctp_crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^
(crc >> 8);
for (li = 0; li < running_length / 8; li++) {
#if BYTE_ORDER == BIG_ENDIAN
crc ^= *p_buf++;
crc ^= (*p_buf++) << 8;
crc ^= (*p_buf++) << 16;
crc ^= (*p_buf++) << 24;
#else
crc ^= *(const uint32_t *) p_buf;
p_buf += 4;
#endif
term1 = sctp_crc_tableil8_o88[crc & 0x000000FF] ^
sctp_crc_tableil8_o80[(crc >> 8) & 0x000000FF];
term2 = crc >> 16;
crc = term1 ^
sctp_crc_tableil8_o72[term2 & 0x000000FF] ^
sctp_crc_tableil8_o64[(term2 >> 8) & 0x000000FF];
#if BYTE_ORDER == BIG_ENDIAN
crc ^= sctp_crc_tableil8_o56[*p_buf++];
crc ^= sctp_crc_tableil8_o48[*p_buf++];
crc ^= sctp_crc_tableil8_o40[*p_buf++];
crc ^= sctp_crc_tableil8_o32[*p_buf++];
#else
term1 = sctp_crc_tableil8_o56[(*(const uint32_t *) p_buf) & 0x000000FF] ^
sctp_crc_tableil8_o48[((*(const uint32_t *) p_buf) >> 8) & 0x000000FF];
term2 = (*(const uint32_t *) p_buf) >> 16;
crc = crc ^
term1 ^
sctp_crc_tableil8_o40[term2 & 0x000000FF] ^
sctp_crc_tableil8_o32[(term2 >> 8) & 0x000000FF];
p_buf += 4;
#endif
}
for (li = 0; li < end_bytes; li++)
crc = sctp_crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^
(crc >> 8);
return (crc);
}
/**
*
* Routine Description:
*
* warms the tables
*
* Arguments:
*
* none
*
* Return value:
*
* none
*/
static uint32_t
multitable_crc32c(uint32_t crc32c,
const unsigned char *buffer,
unsigned int length)
{
uint32_t to_even_word;
if (length == 0) {
return (crc32c);
}
to_even_word = (4 - (((uintptr_t) buffer) & 0x3));
return (sctp_crc32c_sb8_64_bit(crc32c, buffer, length, to_even_word));
}
static const uint32_t sctp_crc_c[256] = {
0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4,
0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B,
0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B,
0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54,
0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A,
0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5,
0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45,
0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A,
0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48,
0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687,
0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927,
0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8,
0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096,
0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859,
0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9,
0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36,
0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C,
0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043,
0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3,
0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C,
0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652,
0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D,
0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D,
0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2,
0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530,
0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF,
0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F,
0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90,
0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE,
0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321,
0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81,
0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E,
0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351,
};
#define SCTP_CRC32C(c,d) (c=(c>>8)^sctp_crc_c[(c^(d))&0xFF])
static uint32_t
singletable_crc32c(uint32_t crc32c,
const unsigned char *buffer,
unsigned int length)
{
unsigned int i;
for (i = 0; i < length; i++) {
SCTP_CRC32C(crc32c, buffer[i]);
}
return (crc32c);
}
#if defined(__Userspace__)
uint32_t
#else
static uint32_t
#endif
calculate_crc32c(uint32_t crc32c,
const unsigned char *buffer,
unsigned int length)
{
if (length < 4) {
return (singletable_crc32c(crc32c, buffer, length));
} else {
return (multitable_crc32c(crc32c, buffer, length));
}
}
#endif
#if defined(__Userspace__)
uint32_t
#else
static uint32_t
#endif
sctp_finalize_crc32c(uint32_t crc32c)
{
uint32_t result;
#if BYTE_ORDER == BIG_ENDIAN
uint8_t byte0, byte1, byte2, byte3;
#endif
/* Complement the result */
result = ~crc32c;
#if BYTE_ORDER == BIG_ENDIAN
/*
* For BIG-ENDIAN platforms the result is in little-endian form. So we
* must swap the bytes to return the result in network byte order.
*/
byte0 = result & 0x000000ff;
byte1 = (result >> 8) & 0x000000ff;
byte2 = (result >> 16) & 0x000000ff;
byte3 = (result >> 24) & 0x000000ff;
crc32c = ((byte0 << 24) | (byte1 << 16) | (byte2 << 8) | byte3);
#else
/*
* For LITTLE ENDIAN platforms the result is in already in network
* byte order.
*/
crc32c = result;
#endif
return (crc32c);
}
/*
* Compute the SCTP checksum in network byte order for a given mbuf chain m
* which contains an SCTP packet starting at offset.
* Since this function is also called by ipfw, don't assume that
* it is compiled on a kernel with SCTP support.
*/
uint32_t
sctp_calculate_cksum(struct mbuf *m, uint32_t offset)
{
uint32_t base = 0xffffffff;
while (offset > 0) {
KASSERT(m != NULL, ("sctp_calculate_cksum, offset > length of mbuf chain"));
if (offset < (uint32_t)m->m_len) {
break;
}
offset -= m->m_len;
m = m->m_next;
}
if (offset > 0) {
base = calculate_crc32c(base,
(unsigned char *)(m->m_data + offset),
(unsigned int)(m->m_len - offset));
m = m->m_next;
}
while (m != NULL) {
base = calculate_crc32c(base,
(unsigned char *)m->m_data,
(unsigned int)m->m_len);
m = m->m_next;
}
base = sctp_finalize_crc32c(base);
return (base);
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
#if defined(SCTP) || defined(SCTP_SUPPORT)
VNET_DEFINE(struct sctp_base_info, system_base_info);
/*
* Compute and insert the SCTP checksum in network byte order for a given
* mbuf chain m which contains an SCTP packet starting at offset.
*/
void
sctp_delayed_cksum(struct mbuf *m, uint32_t offset)
{
uint32_t checksum;
checksum = sctp_calculate_cksum(m, offset);
SCTP_STAT_DECR(sctps_sendhwcrc);
SCTP_STAT_INCR(sctps_sendswcrc);
offset += offsetof(struct sctphdr, checksum);
if (offset + sizeof(uint32_t) > (uint32_t)(m->m_pkthdr.len)) {
#ifdef INVARIANTS
panic("sctp_delayed_cksum(): m->m_pkthdr.len: %d, offset: %u.",
m->m_pkthdr.len, offset);
#else
SCTP_PRINTF("sctp_delayed_cksum(): m->m_pkthdr.len: %d, offset: %u.\n",
m->m_pkthdr.len, offset);
#endif
return;
}
m_copyback(m, (int)offset, (int)sizeof(uint32_t), (caddr_t)&checksum);
}
#endif
#endif

56
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@ -0,0 +1,56 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_crc32.h 362338 2020-06-18 19:32:34Z markj $");
#endif
#ifndef _NETINET_SCTP_CRC32_H_
#define _NETINET_SCTP_CRC32_H_
#if defined(_KERNEL)
uint32_t sctp_calculate_cksum(struct mbuf *, uint32_t);
#if defined(__FreeBSD__) && !defined(__Userspace__)
#if defined(SCTP) || defined(SCTP_SUPPORT)
void sctp_delayed_cksum(struct mbuf *, uint32_t offset);
#endif
#endif
#endif /* _KERNEL */
#if defined(__Userspace__)
uint32_t calculate_crc32c(uint32_t, const unsigned char *, unsigned int);
uint32_t sctp_finalize_crc32c(uint32_t);
uint32_t sctp_calculate_cksum(struct mbuf *, uint32_t);
#endif
#endif /* __crc32c_h__ */

611
ext/sctp/usrsctp/usrsctplib/netinet/sctp_header.h Normal file
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@ -0,0 +1,611 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_header.h 309682 2016-12-07 19:30:59Z tuexen $");
#endif
#ifndef _NETINET_SCTP_HEADER_H_
#define _NETINET_SCTP_HEADER_H_
#if defined(_WIN32) && !defined(__Userspace__)
#include <packon.h>
#endif
#if !defined(_WIN32)
#include <sys/time.h>
#endif
#include <netinet/sctp.h>
#include <netinet/sctp_constants.h>
#if !defined(_WIN32)
#define SCTP_PACKED __attribute__((packed))
#else
#pragma pack (push, 1)
#define SCTP_PACKED
#endif
/*
* Parameter structures
*/
struct sctp_ipv4addr_param {
struct sctp_paramhdr ph;/* type=SCTP_IPV4_PARAM_TYPE, len=8 */
uint32_t addr; /* IPV4 address */
} SCTP_PACKED;
#define SCTP_V6_ADDR_BYTES 16
struct sctp_ipv6addr_param {
struct sctp_paramhdr ph;/* type=SCTP_IPV6_PARAM_TYPE, len=20 */
uint8_t addr[SCTP_V6_ADDR_BYTES]; /* IPV6 address */
} SCTP_PACKED;
/* Cookie Preservative */
struct sctp_cookie_perserve_param {
struct sctp_paramhdr ph;/* type=SCTP_COOKIE_PRESERVE, len=8 */
uint32_t time; /* time in ms to extend cookie */
} SCTP_PACKED;
#define SCTP_ARRAY_MIN_LEN 1
/* Host Name Address */
struct sctp_host_name_param {
struct sctp_paramhdr ph;/* type=SCTP_HOSTNAME_ADDRESS */
char name[SCTP_ARRAY_MIN_LEN]; /* host name */
} SCTP_PACKED;
/*
* This is the maximum padded size of a s-a-p
* so paramheadr + 3 address types (6 bytes) + 2 byte pad = 12
*/
#define SCTP_MAX_ADDR_PARAMS_SIZE 12
/* supported address type */
struct sctp_supported_addr_param {
struct sctp_paramhdr ph;/* type=SCTP_SUPPORTED_ADDRTYPE */
uint16_t addr_type[2]; /* array of supported address types */
} SCTP_PACKED;
/* heartbeat info parameter */
struct sctp_heartbeat_info_param {
struct sctp_paramhdr ph;
uint32_t time_value_1;
uint32_t time_value_2;
uint32_t random_value1;
uint32_t random_value2;
uint8_t addr_family;
uint8_t addr_len;
/* make sure that this structure is 4 byte aligned */
uint8_t padding[2];
char address[SCTP_ADDRMAX];
} SCTP_PACKED;
/* draft-ietf-tsvwg-prsctp */
/* PR-SCTP supported parameter */
struct sctp_prsctp_supported_param {
struct sctp_paramhdr ph;
} SCTP_PACKED;
/* draft-ietf-tsvwg-addip-sctp */
struct sctp_asconf_paramhdr { /* an ASCONF "parameter" */
struct sctp_paramhdr ph;/* a SCTP parameter header */
uint32_t correlation_id;/* correlation id for this param */
} SCTP_PACKED;
struct sctp_asconf_addr_param { /* an ASCONF address parameter */
struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
struct sctp_ipv6addr_param addrp; /* max storage size */
} SCTP_PACKED;
struct sctp_asconf_tag_param { /* an ASCONF NAT-Vtag parameter */
struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
uint32_t local_vtag;
uint32_t remote_vtag;
} SCTP_PACKED;
struct sctp_asconf_addrv4_param { /* an ASCONF address (v4) parameter */
struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
struct sctp_ipv4addr_param addrp; /* max storage size */
} SCTP_PACKED;
#define SCTP_MAX_SUPPORTED_EXT 256
struct sctp_supported_chunk_types_param {
struct sctp_paramhdr ph;/* type = 0x8008 len = x */
uint8_t chunk_types[];
} SCTP_PACKED;
/*
* Structures for DATA chunks
*/
struct sctp_data {
uint32_t tsn;
uint16_t sid;
uint16_t ssn;
uint32_t ppid;
/* user data follows */
} SCTP_PACKED;
struct sctp_data_chunk {
struct sctp_chunkhdr ch;
struct sctp_data dp;
} SCTP_PACKED;
struct sctp_idata {
uint32_t tsn;
uint16_t sid;
uint16_t reserved; /* Where does the SSN go? */
uint32_t mid;
union {
uint32_t ppid;
uint32_t fsn; /* Fragment Sequence Number */
} ppid_fsn;
/* user data follows */
} SCTP_PACKED;
struct sctp_idata_chunk {
struct sctp_chunkhdr ch;
struct sctp_idata dp;
} SCTP_PACKED;
/*
* Structures for the control chunks
*/
/* Initiate (INIT)/Initiate Ack (INIT ACK) */
struct sctp_init {
uint32_t initiate_tag; /* initiate tag */
uint32_t a_rwnd; /* a_rwnd */
uint16_t num_outbound_streams; /* OS */
uint16_t num_inbound_streams; /* MIS */
uint32_t initial_tsn; /* I-TSN */
/* optional param's follow */
} SCTP_PACKED;
#define SCTP_IDENTIFICATION_SIZE 16
#define SCTP_ADDRESS_SIZE 4
#if defined(__Userspace__)
#define SCTP_RESERVE_SPACE 5
#else
#define SCTP_RESERVE_SPACE 6
#endif
/* state cookie header */
struct sctp_state_cookie { /* this is our definition... */
uint8_t identification[SCTP_IDENTIFICATION_SIZE];/* id of who we are */
struct timeval time_entered; /* the time I built cookie */
uint32_t cookie_life; /* life I will award this cookie */
uint32_t tie_tag_my_vtag; /* my tag in old association */
uint32_t tie_tag_peer_vtag; /* peers tag in old association */
uint32_t peers_vtag; /* peers tag in INIT (for quick ref) */
uint32_t my_vtag; /* my tag in INIT-ACK (for quick ref) */
uint32_t address[SCTP_ADDRESS_SIZE]; /* 4 ints/128 bits */
uint32_t addr_type; /* address type */
uint32_t laddress[SCTP_ADDRESS_SIZE]; /* my local from address */
uint32_t laddr_type; /* my local from address type */
uint32_t scope_id; /* v6 scope id for link-locals */
uint16_t peerport; /* port address of the peer in the INIT */
uint16_t myport; /* my port address used in the INIT */
uint8_t ipv4_addr_legal;/* Are V4 addr legal? */
uint8_t ipv6_addr_legal;/* Are V6 addr legal? */
#if defined(__Userspace__)
uint8_t conn_addr_legal;
#endif
uint8_t local_scope; /* IPv6 local scope flag */
uint8_t site_scope; /* IPv6 site scope flag */
uint8_t ipv4_scope; /* IPv4 private addr scope */
uint8_t loopback_scope; /* loopback scope information */
uint8_t reserved[SCTP_RESERVE_SPACE]; /* Align to 64 bits */
/*
* at the end is tacked on the INIT chunk and the INIT-ACK chunk
* (minus the cookie).
*/
} SCTP_PACKED;
/* state cookie parameter */
struct sctp_state_cookie_param {
struct sctp_paramhdr ph;
struct sctp_state_cookie cookie;
} SCTP_PACKED;
struct sctp_init_chunk {
struct sctp_chunkhdr ch;
struct sctp_init init;
} SCTP_PACKED;
struct sctp_init_msg {
struct sctphdr sh;
struct sctp_init_chunk msg;
} SCTP_PACKED;
/* ... used for both INIT and INIT ACK */
#define sctp_init_ack sctp_init
#define sctp_init_ack_chunk sctp_init_chunk
#define sctp_init_ack_msg sctp_init_msg
/* Selective Ack (SACK) */
struct sctp_gap_ack_block {
uint16_t start; /* Gap Ack block start */
uint16_t end; /* Gap Ack block end */
} SCTP_PACKED;
struct sctp_sack {
uint32_t cum_tsn_ack; /* cumulative TSN Ack */
uint32_t a_rwnd; /* updated a_rwnd of sender */
uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
uint16_t num_dup_tsns; /* number of duplicate TSNs */
/* struct sctp_gap_ack_block's follow */
/* uint32_t duplicate_tsn's follow */
} SCTP_PACKED;
struct sctp_sack_chunk {
struct sctp_chunkhdr ch;
struct sctp_sack sack;
} SCTP_PACKED;
struct sctp_nr_sack {
uint32_t cum_tsn_ack; /* cumulative TSN Ack */
uint32_t a_rwnd; /* updated a_rwnd of sender */
uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
uint16_t num_nr_gap_ack_blks; /* number of NR Gap Ack blocks */
uint16_t num_dup_tsns; /* number of duplicate TSNs */
uint16_t reserved; /* not currently used*/
/* struct sctp_gap_ack_block's follow */
/* uint32_t duplicate_tsn's follow */
} SCTP_PACKED;
struct sctp_nr_sack_chunk {
struct sctp_chunkhdr ch;
struct sctp_nr_sack nr_sack;
} SCTP_PACKED;
/* Heartbeat Request (HEARTBEAT) */
struct sctp_heartbeat {
struct sctp_heartbeat_info_param hb_info;
} SCTP_PACKED;
struct sctp_heartbeat_chunk {
struct sctp_chunkhdr ch;
struct sctp_heartbeat heartbeat;
} SCTP_PACKED;
/* ... used for Heartbeat Ack (HEARTBEAT ACK) */
#define sctp_heartbeat_ack sctp_heartbeat
#define sctp_heartbeat_ack_chunk sctp_heartbeat_chunk
/* Abort Asssociation (ABORT) */
struct sctp_abort_chunk {
struct sctp_chunkhdr ch;
/* optional error cause may follow */
} SCTP_PACKED;
struct sctp_abort_msg {
struct sctphdr sh;
struct sctp_abort_chunk msg;
} SCTP_PACKED;
/* Shutdown Association (SHUTDOWN) */
struct sctp_shutdown_chunk {
struct sctp_chunkhdr ch;
uint32_t cumulative_tsn_ack;
} SCTP_PACKED;
/* Shutdown Acknowledgment (SHUTDOWN ACK) */
struct sctp_shutdown_ack_chunk {
struct sctp_chunkhdr ch;
} SCTP_PACKED;
/* Operation Error (ERROR) */
struct sctp_error_chunk {
struct sctp_chunkhdr ch;
/* optional error causes follow */
} SCTP_PACKED;
/* Cookie Echo (COOKIE ECHO) */
struct sctp_cookie_echo_chunk {
struct sctp_chunkhdr ch;
struct sctp_state_cookie cookie;
} SCTP_PACKED;
/* Cookie Acknowledgment (COOKIE ACK) */
struct sctp_cookie_ack_chunk {
struct sctp_chunkhdr ch;
} SCTP_PACKED;
/* Explicit Congestion Notification Echo (ECNE) */
struct old_sctp_ecne_chunk {
struct sctp_chunkhdr ch;
uint32_t tsn;
} SCTP_PACKED;
struct sctp_ecne_chunk {
struct sctp_chunkhdr ch;
uint32_t tsn;
uint32_t num_pkts_since_cwr;
} SCTP_PACKED;
/* Congestion Window Reduced (CWR) */
struct sctp_cwr_chunk {
struct sctp_chunkhdr ch;
uint32_t tsn;
} SCTP_PACKED;
/* Shutdown Complete (SHUTDOWN COMPLETE) */
struct sctp_shutdown_complete_chunk {
struct sctp_chunkhdr ch;
} SCTP_PACKED;
struct sctp_adaptation_layer_indication {
struct sctp_paramhdr ph;
uint32_t indication;
} SCTP_PACKED;
/*
* draft-ietf-tsvwg-addip-sctp
*/
/* Address/Stream Configuration Change (ASCONF) */
struct sctp_asconf_chunk {
struct sctp_chunkhdr ch;
uint32_t serial_number;
/* lookup address parameter (mandatory) */
/* asconf parameters follow */
} SCTP_PACKED;
/* Address/Stream Configuration Acknowledge (ASCONF ACK) */
struct sctp_asconf_ack_chunk {
struct sctp_chunkhdr ch;
uint32_t serial_number;
/* asconf parameters follow */
} SCTP_PACKED;
/* draft-ietf-tsvwg-prsctp */
/* Forward Cumulative TSN (FORWARD TSN) */
struct sctp_forward_tsn_chunk {
struct sctp_chunkhdr ch;
uint32_t new_cumulative_tsn;
/* stream/sequence pairs (sctp_strseq) follow */
} SCTP_PACKED;
struct sctp_strseq {
uint16_t sid;
uint16_t ssn;
} SCTP_PACKED;
struct sctp_strseq_mid {
uint16_t sid;
uint16_t flags;
uint32_t mid;
};
struct sctp_forward_tsn_msg {
struct sctphdr sh;
struct sctp_forward_tsn_chunk msg;
} SCTP_PACKED;
/* should be a multiple of 4 - 1 aka 3/7/11 etc. */
#define SCTP_NUM_DB_TO_VERIFY 31
struct sctp_chunk_desc {
uint8_t chunk_type;
uint8_t data_bytes[SCTP_NUM_DB_TO_VERIFY];
uint32_t tsn_ifany;
} SCTP_PACKED;
struct sctp_pktdrop_chunk {
struct sctp_chunkhdr ch;
uint32_t bottle_bw;
uint32_t current_onq;
uint16_t trunc_len;
uint16_t reserved;
uint8_t data[];
} SCTP_PACKED;
/**********STREAM RESET STUFF ******************/
struct sctp_stream_reset_request {
struct sctp_paramhdr ph;
uint32_t request_seq;
} SCTP_PACKED;
struct sctp_stream_reset_out_request {
struct sctp_paramhdr ph;
uint32_t request_seq; /* monotonically increasing seq no */
uint32_t response_seq; /* if a response, the resp seq no */
uint32_t send_reset_at_tsn; /* last TSN I assigned outbound */
uint16_t list_of_streams[]; /* if not all list of streams */
} SCTP_PACKED;
struct sctp_stream_reset_in_request {
struct sctp_paramhdr ph;
uint32_t request_seq;
uint16_t list_of_streams[]; /* if not all list of streams */
} SCTP_PACKED;
struct sctp_stream_reset_tsn_request {
struct sctp_paramhdr ph;
uint32_t request_seq;
} SCTP_PACKED;
struct sctp_stream_reset_response {
struct sctp_paramhdr ph;
uint32_t response_seq; /* if a response, the resp seq no */
uint32_t result;
} SCTP_PACKED;
struct sctp_stream_reset_response_tsn {
struct sctp_paramhdr ph;
uint32_t response_seq; /* if a response, the resp seq no */
uint32_t result;
uint32_t senders_next_tsn;
uint32_t receivers_next_tsn;
} SCTP_PACKED;
struct sctp_stream_reset_add_strm {
struct sctp_paramhdr ph;
uint32_t request_seq;
uint16_t number_of_streams;
uint16_t reserved;
} SCTP_PACKED;
#define SCTP_STREAM_RESET_RESULT_NOTHING_TO_DO 0x00000000 /* XXX: unused */
#define SCTP_STREAM_RESET_RESULT_PERFORMED 0x00000001
#define SCTP_STREAM_RESET_RESULT_DENIED 0x00000002
#define SCTP_STREAM_RESET_RESULT_ERR__WRONG_SSN 0x00000003 /* XXX: unused */
#define SCTP_STREAM_RESET_RESULT_ERR_IN_PROGRESS 0x00000004
#define SCTP_STREAM_RESET_RESULT_ERR_BAD_SEQNO 0x00000005
#define SCTP_STREAM_RESET_RESULT_IN_PROGRESS 0x00000006 /* XXX: unused */
/*
* convience structures, note that if you are making a request for specific
* streams then the request will need to be an overlay structure.
*/
struct sctp_stream_reset_tsn_req {
struct sctp_chunkhdr ch;
struct sctp_stream_reset_tsn_request sr_req;
} SCTP_PACKED;
struct sctp_stream_reset_resp {
struct sctp_chunkhdr ch;
struct sctp_stream_reset_response sr_resp;
} SCTP_PACKED;
/* respone only valid with a TSN request */
struct sctp_stream_reset_resp_tsn {
struct sctp_chunkhdr ch;
struct sctp_stream_reset_response_tsn sr_resp;
} SCTP_PACKED;
/****************************************************/
/*
* Authenticated chunks support draft-ietf-tsvwg-sctp-auth
*/
/* Should we make the max be 32? */
#define SCTP_RANDOM_MAX_SIZE 256
struct sctp_auth_random {
struct sctp_paramhdr ph;/* type = 0x8002 */
uint8_t random_data[];
} SCTP_PACKED;
struct sctp_auth_chunk_list {
struct sctp_paramhdr ph;/* type = 0x8003 */
uint8_t chunk_types[];
} SCTP_PACKED;
struct sctp_auth_hmac_algo {
struct sctp_paramhdr ph;/* type = 0x8004 */
uint16_t hmac_ids[];
} SCTP_PACKED;
struct sctp_auth_chunk {
struct sctp_chunkhdr ch;
uint16_t shared_key_id;
uint16_t hmac_id;
uint8_t hmac[];
} SCTP_PACKED;
/*
* we pre-reserve enough room for a ECNE or CWR AND a SACK with no missing
* pieces. If ENCE is missing we could have a couple of blocks. This way we
* optimize so we MOST likely can bundle a SACK/ECN with the smallest size
* data chunk I will split into. We could increase throughput slightly by
* taking out these two but the 24-sack/8-CWR i.e. 32 bytes I pre-reserve I
* feel is worth it for now.
*/
#ifndef SCTP_MAX_OVERHEAD
#ifdef INET6
#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
sizeof(struct sctphdr) + \
sizeof(struct sctp_ecne_chunk) + \
sizeof(struct sctp_sack_chunk) + \
sizeof(struct ip6_hdr))
#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
sizeof(struct sctphdr) + \
sizeof(struct ip6_hdr))
#define SCTP_MIN_OVERHEAD (sizeof(struct ip6_hdr) + \
sizeof(struct sctphdr))
#else
#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
sizeof(struct sctphdr) + \
sizeof(struct sctp_ecne_chunk) + \
sizeof(struct sctp_sack_chunk) + \
sizeof(struct ip))
#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
sizeof(struct sctphdr) + \
sizeof(struct ip))
#define SCTP_MIN_OVERHEAD (sizeof(struct ip) + \
sizeof(struct sctphdr))
#endif /* INET6 */
#endif /* !SCTP_MAX_OVERHEAD */
#define SCTP_MED_V4_OVERHEAD (sizeof(struct sctp_data_chunk) + \
sizeof(struct sctphdr) + \
sizeof(struct ip))
#define SCTP_MIN_V4_OVERHEAD (sizeof(struct ip) + \
sizeof(struct sctphdr))
#if defined(_WIN32) && !defined(__Userspace__)
#include <packoff.h>
#endif
#if defined(_WIN32) && defined(__Userspace__)
#pragma pack(pop)
#endif
#undef SCTP_PACKED
#endif /* !__sctp_header_h__ */

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.h 361116 2020-05-16 19:26:39Z tuexen $");
#endif
#ifndef _NETINET_SCTP_INDATA_H_
#define _NETINET_SCTP_INDATA_H_
#if defined(_KERNEL) || defined(__Userspace__)
struct sctp_queued_to_read *
sctp_build_readq_entry(struct sctp_tcb *stcb,
struct sctp_nets *net,
uint32_t tsn, uint32_t ppid,
uint32_t context, uint16_t sid,
uint32_t mid, uint8_t flags,
struct mbuf *dm);
#define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, sid, flags, dm, tfsn, mid) do { \
if (_ctl) { \
atomic_add_int(&((net)->ref_count), 1); \
memset(_ctl, 0, sizeof(struct sctp_queued_to_read)); \
(_ctl)->sinfo_stream = sid; \
TAILQ_INIT(&_ctl->reasm); \
(_ctl)->top_fsn = tfsn; \
(_ctl)->mid = mid; \
(_ctl)->sinfo_flags = (flags << 8); \
(_ctl)->sinfo_ppid = ppid; \
(_ctl)->sinfo_context = context; \
(_ctl)->fsn_included = 0xffffffff; \
(_ctl)->sinfo_tsn = tsn; \
(_ctl)->sinfo_cumtsn = tsn; \
(_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
(_ctl)->whoFrom = net; \
(_ctl)->data = dm; \
(_ctl)->stcb = (in_it); \
(_ctl)->port_from = (in_it)->rport; \
if ((in_it)->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { \
(_ctl)->do_not_ref_stcb = 1; \
}\
} \
} while (0)
struct mbuf *
sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
struct sctp_sndrcvinfo *sinfo);
void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
uint32_t
sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
void
sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
uint32_t rwnd, int *abort_now, int ecne_seen);
void
sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
struct sctp_tcb *stcb,
uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
int *abort_now, uint8_t flags,
uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
/* draft-ietf-tsvwg-usctp */
void
sctp_handle_forward_tsn(struct sctp_tcb *,
struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
struct sctp_tmit_chunk *
sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
void
sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
int
sctp_process_data(struct mbuf **, int, int *, int,
struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *, uint32_t *);
void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
void sctp_sack_check(struct sctp_tcb *, int);
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_input.h 326672 2017-12-07 22:19:08Z tuexen $");
#endif
#ifndef _NETINET_SCTP_INPUT_H_
#define _NETINET_SCTP_INPUT_H_
#if defined(_KERNEL) || defined(__Userspace__)
void
sctp_common_input_processing(struct mbuf **, int, int, int,
struct sockaddr *, struct sockaddr *,
struct sctphdr *, struct sctp_chunkhdr *,
uint8_t,
uint8_t,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t, uint16_t,
#endif
uint32_t, uint16_t);
struct sctp_stream_reset_request *
sctp_find_stream_reset(struct sctp_tcb *stcb, uint32_t seq,
struct sctp_tmit_chunk **bchk);
void sctp_reset_in_stream(struct sctp_tcb *stcb, uint32_t number_entries,
uint16_t *list);
int sctp_is_there_unsent_data(struct sctp_tcb *stcb, int so_locked);
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
* Copyright (c) 2008-2012, by Brad Penoff. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#endif
#ifndef _NETINET_SCTP_LOCK_EMPTY_H_
#define _NETINET_SCTP_LOCK_EMPTY_H_
/*
* Empty Lock declarations for all other platforms. Pre-process away to
* nothing.
*/
/* __Userspace__ putting lock macros in same order as sctp_lock_bsd.h ...*/
#define SCTP_IPI_COUNT_INIT()
#define SCTP_STATLOG_INIT_LOCK()
#define SCTP_STATLOG_LOCK()
#define SCTP_STATLOG_UNLOCK()
#define SCTP_STATLOG_DESTROY()
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_INP_INFO_LOCK_INIT()
#define SCTP_INP_INFO_RLOCK()
#define SCTP_INP_INFO_WLOCK()
#define SCTP_INP_INFO_TRYLOCK() 1
#define SCTP_INP_INFO_RUNLOCK()
#define SCTP_INP_INFO_WUNLOCK()
#define SCTP_WQ_ADDR_INIT()
#define SCTP_WQ_ADDR_DESTROY()
#define SCTP_WQ_ADDR_LOCK()
#define SCTP_WQ_ADDR_UNLOCK()
#define SCTP_WQ_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_INIT()
#define SCTP_IPI_ADDR_DESTROY()
#define SCTP_IPI_ADDR_RLOCK()
#define SCTP_IPI_ADDR_WLOCK()
#define SCTP_IPI_ADDR_RUNLOCK()
#define SCTP_IPI_ADDR_WUNLOCK()
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
#define SCTP_IPI_ITERATOR_WQ_INIT()
#define SCTP_IPI_ITERATOR_WQ_DESTROY()
#define SCTP_IPI_ITERATOR_WQ_LOCK()
#define SCTP_IPI_ITERATOR_WQ_UNLOCK()
#define SCTP_IP_PKTLOG_INIT()
#define SCTP_IP_PKTLOG_LOCK()
#define SCTP_IP_PKTLOG_UNLOCK()
#define SCTP_IP_PKTLOG_DESTROY()
#define SCTP_INP_READ_INIT(_inp)
#define SCTP_INP_READ_DESTROY(_inp)
#define SCTP_INP_READ_LOCK(_inp)
#define SCTP_INP_READ_UNLOCK(_inp)
#define SCTP_INP_LOCK_INIT(_inp)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
#define SCTP_INP_LOCK_DESTROY(_inp)
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
#define SCTP_INP_RLOCK(_inp)
#define SCTP_INP_WLOCK(_inp)
#define SCTP_INP_RLOCK_ASSERT(_inp)
#define SCTP_INP_WLOCK_ASSERT(_inp)
#define SCTP_INP_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_INP_READ_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_TCB_SEND_LOCK_INIT(_tcb)
#define SCTP_TCB_SEND_LOCK_DESTROY(_tcb)
#define SCTP_TCB_SEND_LOCK(_tcb)
#define SCTP_TCB_SEND_UNLOCK(_tcb)
#define SCTP_INP_INCR_REF(_inp)
#define SCTP_INP_DECR_REF(_inp)
#define SCTP_ASOC_CREATE_LOCK(_inp)
#define SCTP_INP_RUNLOCK(_inp)
#define SCTP_INP_WUNLOCK(_inp)
#define SCTP_ASOC_CREATE_UNLOCK(_inp)
#define SCTP_TCB_LOCK_INIT(_tcb)
#define SCTP_TCB_LOCK_DESTROY(_tcb)
#define SCTP_TCB_LOCK(_tcb)
#define SCTP_TCB_TRYLOCK(_tcb) 1
#define SCTP_TCB_UNLOCK(_tcb)
#define SCTP_TCB_UNLOCK_IFOWNED(_tcb)
#define SCTP_TCB_LOCK_ASSERT(_tcb)
#define SCTP_ITERATOR_LOCK_INIT()
#define SCTP_ITERATOR_LOCK()
#define SCTP_ITERATOR_UNLOCK()
#define SCTP_ITERATOR_LOCK_DESTROY()
#define SCTP_INCR_EP_COUNT() \
do { \
sctppcbinfo.ipi_count_ep++; \
} while (0)
#define SCTP_DECR_EP_COUNT() \
do { \
sctppcbinfo.ipi_count_ep--; \
} while (0)
#define SCTP_INCR_ASOC_COUNT() \
do { \
sctppcbinfo.ipi_count_asoc++; \
} while (0)
#define SCTP_DECR_ASOC_COUNT() \
do { \
sctppcbinfo.ipi_count_asoc--; \
} while (0)
#define SCTP_INCR_LADDR_COUNT() \
do { \
sctppcbinfo.ipi_count_laddr++; \
} while (0)
#define SCTP_DECR_LADDR_COUNT() \
do { \
sctppcbinfo.ipi_count_laddr--; \
} while (0)
#define SCTP_INCR_RADDR_COUNT() \
do { \
sctppcbinfo.ipi_count_raddr++; \
} while (0)
#define SCTP_DECR_RADDR_COUNT() \
do { \
sctppcbinfo.ipi_count_raddr--; \
} while (0)
#define SCTP_INCR_CHK_COUNT() \
do { \
sctppcbinfo.ipi_count_chunk++; \
} while (0)
#define SCTP_DECR_CHK_COUNT() \
do { \
sctppcbinfo.ipi_count_chunk--; \
} while (0)
#define SCTP_INCR_READQ_COUNT() \
do { \
sctppcbinfo.ipi_count_readq++; \
} while (0)
#define SCTP_DECR_READQ_COUNT() \
do { \
sctppcbinfo.ipi_count_readq--; \
} while (0)
#define SCTP_INCR_STRMOQ_COUNT() \
do { \
sctppcbinfo.ipi_count_strmoq++; \
} while (0)
#define SCTP_DECR_STRMOQ_COUNT() \
do { \
sctppcbinfo.ipi_count_strmoq--; \
} while (0)
/* these were in sctp_lock_empty.h but aren't in sctp_lock_bsd.h ... */
#if 0
#define SCTP_IPI_ADDR_LOCK()
#define SCTP_IPI_ADDR_UNLOCK()
#endif
/* These were in sctp_lock_empty.h because they were commented out within
* within user_include/user_socketvar.h . If they are NOT commented out
* in user_socketvar.h (because that seems the more natural place for them
* to live), then change this "if" to 0. Keep the "if" as 1 if these ARE
* indeed commented out in user_socketvar.h .
*
* This modularity is kept so this file can easily be chosen as an alternative
* to SCTP_PROCESS_LEVEL_LOCKS. If one defines SCTP_PROCESS_LEVEL_LOCKS in
* user_include/opt_sctp.h, then the file sctp_process_lock.h (which we didn't
* implement) is used, and that declares these locks already (so using
* SCTP_PROCESS_LEVEL_LOCKS *requires* that these defintions be commented out
* in user_socketvar.h).
*/
#if 1
#define SOCK_LOCK(_so)
#define SOCK_UNLOCK(_so)
#define SOCKBUF_LOCK(_so_buf)
#define SOCKBUF_UNLOCK(_so_buf)
#define SOCKBUF_LOCK_ASSERT(_so_buf)
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_os.h 361872 2020-06-06 18:20:09Z tuexen $");
#endif
#ifndef _NETINET_SCTP_OS_H_
#define _NETINET_SCTP_OS_H_
/*
* General kernel memory allocation:
* SCTP_MALLOC(element, type, size, name)
* SCTP_FREE(element)
* Kernel memory allocation for "soname"- memory must be zeroed.
* SCTP_MALLOC_SONAME(name, type, size)
* SCTP_FREE_SONAME(name)
*/
/*
* Zone(pool) allocation routines: MUST be defined for each OS.
* zone = zone/pool pointer.
* name = string name of the zone/pool.
* size = size of each zone/pool element.
* number = number of elements in zone/pool.
* type = structure type to allocate
*
* sctp_zone_t
* SCTP_ZONE_INIT(zone, name, size, number)
* SCTP_ZONE_GET(zone, type)
* SCTP_ZONE_FREE(zone, element)
* SCTP_ZONE_DESTROY(zone)
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <netinet/sctp_os_bsd.h>
#else
#define MODULE_GLOBAL(_B) (_B)
#endif
#if defined(__Userspace__)
#include <netinet/sctp_os_userspace.h>
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
#include <netinet/sctp_os_macosx.h>
#endif
#if defined(_WIN32) && !defined(__Userspace__)
#include <netinet/sctp_os_windows.h>
#endif
/* All os's must implement this address gatherer. If
* no VRF's exist, then vrf 0 is the only one and all
* addresses and ifn's live here.
*/
#define SCTP_DEFAULT_VRF 0
void sctp_init_vrf_list(int vrfid);
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_output.h 362054 2020-06-11 13:34:09Z tuexen $");
#endif
#ifndef _NETINET_SCTP_OUTPUT_H_
#define _NETINET_SCTP_OUTPUT_H_
#include <netinet/sctp_header.h>
#if defined(_KERNEL) || defined(__Userspace__)
struct mbuf *
sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
struct sctp_scoping *scope,
struct mbuf *m_at,
int cnt_inits_to,
uint16_t *padding_len, uint16_t *chunk_len);
int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
int
sctp_is_address_in_scope(struct sctp_ifa *ifa,
struct sctp_scoping *scope,
int do_update);
int
sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
struct sctp_ifa *
sctp_source_address_selection(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
sctp_route_t *ro, struct sctp_nets *net,
int non_asoc_addr_ok, uint32_t vrf_id);
#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Userspace__)
int
sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro);
int
sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro);
#endif
void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int);
void
sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *, struct mbuf *,
int, int,
struct sockaddr *, struct sockaddr *,
struct sctphdr *, struct sctp_init_chunk *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t,
#endif
uint32_t, uint16_t);
struct mbuf *
sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
struct sctp_chunkhdr *, int *, int *);
void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
int
sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *,
struct sctp_nets *);
void sctp_send_cookie_ack(struct sctp_tcb *);
void
sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
struct sctp_nets *);
void
sctp_remove_from_wheel(struct sctp_tcb *stcb,
struct sctp_association *asoc,
struct sctp_stream_out *strq, int holds_lock);
void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int);
void sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *,
struct sctphdr *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t, uint16_t,
#endif
uint32_t, uint16_t);
void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked);
void sctp_send_asconf_ack(struct sctp_tcb *);
int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
void sctp_toss_old_asconf(struct sctp_tcb *);
void sctp_fix_ecn_echo(struct sctp_association *);
void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net);
#define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \
sizeof(struct sctp_idata_chunk) : \
sizeof(struct sctp_data_chunk))
#if defined(__FreeBSD__) && !defined(__Userspace__)
int
sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
struct mbuf *, struct thread *, int);
#elif defined(_WIN32) && !defined(__Userspace__)
sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
struct mbuf *, PKTHREAD, int);
#else
#if defined(__Userspace__)
/* sctp_output is called bu sctp_sendm. Not using sctp_sendm for __Userspace__ */
#endif
int
sctp_output(struct sctp_inpcb *,
struct mbuf *,
struct sockaddr *,
struct mbuf *,
struct proc *, int);
#endif
void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int);
void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int);
void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
void sctp_send_sack(struct sctp_tcb *, int);
void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int);
void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
void
sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
int, int, int);
void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t);
void
sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t);
void
sctp_send_deferred_reset_response(struct sctp_tcb *,
struct sctp_stream_reset_list *,
int);
void
sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *,
uint32_t, uint32_t, uint32_t, uint32_t);
int
sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int);
int
sctp_send_str_reset_req(struct sctp_tcb *, uint16_t , uint16_t *,
uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t);
void
sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *,
struct sctphdr *, uint32_t, struct mbuf *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t, uint16_t,
#endif
uint32_t, uint16_t);
void sctp_send_operr_to(struct sockaddr *, struct sockaddr *,
struct sctphdr *, uint32_t, struct mbuf *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t, uint16_t,
#endif
uint32_t, uint16_t);
#endif /* _KERNEL || __Userspace__ */
#if defined(_KERNEL) || defined(__Userspace__)
int
sctp_sosend(struct socket *so,
struct sockaddr *addr,
struct uio *uio,
struct mbuf *top,
struct mbuf *control,
#if defined(__APPLE__) && !defined(__Userspace__)
int flags
#else
int flags,
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct thread *p
#elif defined(_WIN32) && !defined(__Userspace__)
PKTHREAD p
#else
#if defined(__Userspace__)
/* proc is a dummy in __Userspace__ and will not be passed to sctp_lower_sosend */
#endif
struct proc *p
#endif
#endif
);
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_pcb.h 362106 2020-06-12 16:31:13Z tuexen $");
#endif
#ifndef _NETINET_SCTP_PCB_H_
#define _NETINET_SCTP_PCB_H_
#include <netinet/sctp_os.h>
#include <netinet/sctp.h>
#include <netinet/sctp_constants.h>
#include <netinet/sctp_sysctl.h>
LIST_HEAD(sctppcbhead, sctp_inpcb);
LIST_HEAD(sctpasochead, sctp_tcb);
LIST_HEAD(sctpladdr, sctp_laddr);
LIST_HEAD(sctpvtaghead, sctp_tagblock);
LIST_HEAD(sctp_vrflist, sctp_vrf);
LIST_HEAD(sctp_ifnlist, sctp_ifn);
LIST_HEAD(sctp_ifalist, sctp_ifa);
TAILQ_HEAD(sctp_readhead, sctp_queued_to_read);
TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending);
#include <netinet/sctp_structs.h>
#include <netinet/sctp_auth.h>
#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask)
#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask)
struct sctp_vrf {
LIST_ENTRY (sctp_vrf) next_vrf;
struct sctp_ifalist *vrf_addr_hash;
struct sctp_ifnlist ifnlist;
uint32_t vrf_id;
uint32_t tbl_id_v4; /* default v4 table id */
uint32_t tbl_id_v6; /* default v6 table id */
uint32_t total_ifa_count;
u_long vrf_addr_hashmark;
uint32_t refcount;
};
struct sctp_ifn {
struct sctp_ifalist ifalist;
struct sctp_vrf *vrf;
LIST_ENTRY(sctp_ifn) next_ifn;
LIST_ENTRY(sctp_ifn) next_bucket;
void *ifn_p; /* never access without appropriate lock */
uint32_t ifn_mtu;
uint32_t ifn_type;
uint32_t ifn_index; /* shorthand way to look at ifn for reference */
uint32_t refcount; /* number of reference held should be >= ifa_count */
uint32_t ifa_count; /* IFA's we hold (in our list - ifalist)*/
uint32_t num_v6; /* number of v6 addresses */
uint32_t num_v4; /* number of v4 addresses */
uint32_t registered_af; /* registered address family for i/f events */
char ifn_name[SCTP_IFNAMSIZ];
};
/* SCTP local IFA flags */
#define SCTP_ADDR_VALID 0x00000001 /* its up and active */
#define SCTP_BEING_DELETED 0x00000002 /* being deleted,
* when refcount = 0. Note
* that it is pulled from the ifn list
* and ifa_p is nulled right away but
* it cannot be freed until the last *net
* pointing to it is deleted.
*/
#define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */
#define SCTP_ADDR_IFA_UNUSEABLE 0x00000008
struct sctp_ifa {
LIST_ENTRY(sctp_ifa) next_ifa;
LIST_ENTRY(sctp_ifa) next_bucket;
struct sctp_ifn *ifn_p; /* back pointer to parent ifn */
void *ifa; /* pointer to ifa, needed for flag
* update for that we MUST lock
* appropriate locks. This is for V6.
*/
union sctp_sockstore address;
uint32_t refcount; /* number of folks referring to this */
uint32_t flags;
uint32_t localifa_flags;
uint32_t vrf_id; /* vrf_id of this addr (for deleting) */
uint8_t src_is_loop;
uint8_t src_is_priv;
uint8_t src_is_glob;
uint8_t resv;
};
struct sctp_laddr {
LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */
struct sctp_ifa *ifa;
uint32_t action; /* Used during asconf and adding
* if no-zero src-addr selection will
* not consider this address.
*/
struct timeval start_time; /* time when this address was created */
};
struct sctp_block_entry {
int error;
};
struct sctp_timewait {
uint32_t tv_sec_at_expire; /* the seconds from boot to expire */
uint32_t v_tag; /* the vtag that can not be reused */
uint16_t lport; /* the local port used in vtag */
uint16_t rport; /* the remote port used in vtag */
};
struct sctp_tagblock {
LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock;
struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK];
};
struct sctp_epinfo {
#if defined(__FreeBSD__) && !defined(__Userspace__)
#ifdef INET
struct socket *udp4_tun_socket;
#endif
#ifdef INET6
struct socket *udp6_tun_socket;
#endif
#endif
struct sctpasochead *sctp_asochash;
u_long hashasocmark;
struct sctppcbhead *sctp_ephash;
u_long hashmark;
/*-
* The TCP model represents a substantial overhead in that we get an
* additional hash table to keep explicit connections in. The
* listening TCP endpoint will exist in the usual ephash above and
* accept only INIT's. It will be incapable of sending off an INIT.
* When a dg arrives we must look in the normal ephash. If we find a
* TCP endpoint that will tell us to go to the specific endpoint
* hash and re-hash to find the right assoc/socket. If we find a UDP
* model socket we then must complete the lookup. If this fails,
* i.e. no association can be found then we must continue to see if
* a sctp_peeloff()'d socket is in the tcpephash (a spun off socket
* acts like a TCP model connected socket).
*/
struct sctppcbhead *sctp_tcpephash;
u_long hashtcpmark;
uint32_t hashtblsize;
struct sctp_vrflist *sctp_vrfhash;
u_long hashvrfmark;
struct sctp_ifnlist *vrf_ifn_hash;
u_long vrf_ifn_hashmark;
struct sctppcbhead listhead;
struct sctpladdr addr_wq;
#if defined(__APPLE__) && !defined(__Userspace__)
struct inpcbhead inplisthead;
struct inpcbinfo sctbinfo;
#endif
/* ep zone info */
sctp_zone_t ipi_zone_ep;
sctp_zone_t ipi_zone_asoc;
sctp_zone_t ipi_zone_laddr;
sctp_zone_t ipi_zone_net;
sctp_zone_t ipi_zone_chunk;
sctp_zone_t ipi_zone_readq;
sctp_zone_t ipi_zone_strmoq;
sctp_zone_t ipi_zone_asconf;
sctp_zone_t ipi_zone_asconf_ack;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct rwlock ipi_ep_mtx;
struct mtx ipi_iterator_wq_mtx;
struct rwlock ipi_addr_mtx;
struct mtx ipi_pktlog_mtx;
struct mtx wq_addr_mtx;
#elif defined(SCTP_PROCESS_LEVEL_LOCKS)
userland_mutex_t ipi_ep_mtx;
userland_mutex_t ipi_addr_mtx;
userland_mutex_t ipi_count_mtx;
userland_mutex_t ipi_pktlog_mtx;
userland_mutex_t wq_addr_mtx;
#elif defined(__APPLE__) && !defined(__Userspace__)
#ifdef _KERN_LOCKS_H_
lck_mtx_t *ipi_addr_mtx;
lck_mtx_t *ipi_count_mtx;
lck_mtx_t *ipi_pktlog_mtx;
lck_mtx_t *logging_mtx;
lck_mtx_t *wq_addr_mtx;
#else
void *ipi_count_mtx;
void *logging_mtx;
#endif /* _KERN_LOCKS_H_ */
#elif defined(_WIN32) && !defined(__Userspace__)
struct rwlock ipi_ep_lock;
struct rwlock ipi_addr_lock;
struct spinlock ipi_pktlog_mtx;
struct rwlock wq_addr_mtx;
#elif defined(__Userspace__)
#endif
uint32_t ipi_count_ep;
/* assoc/tcb zone info */
uint32_t ipi_count_asoc;
/* local addrlist zone info */
uint32_t ipi_count_laddr;
/* remote addrlist zone info */
uint32_t ipi_count_raddr;
/* chunk structure list for output */
uint32_t ipi_count_chunk;
/* socket queue zone info */
uint32_t ipi_count_readq;
/* socket queue zone info */
uint32_t ipi_count_strmoq;
/* Number of vrfs */
uint32_t ipi_count_vrfs;
/* Number of ifns */
uint32_t ipi_count_ifns;
/* Number of ifas */
uint32_t ipi_count_ifas;
/* system wide number of free chunks hanging around */
uint32_t ipi_free_chunks;
uint32_t ipi_free_strmoq;
struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];
/* address work queue handling */
struct sctp_timer addr_wq_timer;
#if defined(_SCTP_NEEDS_CALLOUT_) || defined(_USER_SCTP_NEEDS_CALLOUT_)
struct calloutlist callqueue;
#endif
};
struct sctp_base_info {
/* All static structures that
* anchor the system must be here.
*/
struct sctp_epinfo sctppcbinfo;
#if defined(__FreeBSD__) && !defined(__Userspace__)
#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
struct sctpstat *sctpstat;
#else
struct sctpstat sctpstat;
#endif
#else
struct sctpstat sctpstat;
#endif
struct sctp_sysctl sctpsysctl;
uint8_t first_time;
char sctp_pcb_initialized;
#if defined(SCTP_PACKET_LOGGING)
int packet_log_writers;
int packet_log_end;
uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE];
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
eventhandler_tag eh_tag;
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
int sctp_main_timer_ticks;
#endif
#if defined(__Userspace__)
userland_mutex_t timer_mtx;
userland_thread_t timer_thread;
int timer_thread_should_exit;
int iterator_thread_started;
int timer_thread_started;
#if !defined(_WIN32)
pthread_mutexattr_t mtx_attr;
#if defined(INET) || defined(INET6)
int userspace_route;
userland_thread_t recvthreadroute;
#endif
#endif
#ifdef INET
#if defined(_WIN32) && !defined(__MINGW32__)
SOCKET userspace_rawsctp;
SOCKET userspace_udpsctp;
#else
int userspace_rawsctp;
int userspace_udpsctp;
#endif
userland_thread_t recvthreadraw;
userland_thread_t recvthreadudp;
#endif
#ifdef INET6
#if defined(_WIN32) && !defined(__MINGW32__)
SOCKET userspace_rawsctp6;
SOCKET userspace_udpsctp6;
#else
int userspace_rawsctp6;
int userspace_udpsctp6;
#endif
userland_thread_t recvthreadraw6;
userland_thread_t recvthreadudp6;
#endif
int (*conn_output)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df);
void (*debug_printf)(const char *format, ...);
int crc32c_offloaded;
#endif
};
/*-
* Here we have all the relevant information for each SCTP entity created. We
* will need to modify this as approprate. We also need to figure out how to
* access /dev/random.
*/
struct sctp_pcb {
unsigned int time_of_secret_change; /* number of seconds from
* timeval.tv_sec */
uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS];
unsigned int size_of_a_cookie;
uint32_t sctp_timeoutticks[SCTP_NUM_TMRS];
uint32_t sctp_minrto;
uint32_t sctp_maxrto;
uint32_t initial_rto;
uint32_t initial_init_rto_max;
unsigned int sctp_sack_freq;
uint32_t sctp_sws_sender;
uint32_t sctp_sws_receiver;
uint32_t sctp_default_cc_module;
uint32_t sctp_default_ss_module;
/* authentication related fields */
struct sctp_keyhead shared_keys;
sctp_auth_chklist_t *local_auth_chunks;
sctp_hmaclist_t *local_hmacs;
uint16_t default_keyid;
uint32_t default_mtu;
/* various thresholds */
/* Max times I will init at a guy */
uint16_t max_init_times;
/* Max times I will send before we consider someone dead */
uint16_t max_send_times;
uint16_t def_net_failure;
uint16_t def_net_pf_threshold;
/* number of streams to pre-open on a association */
uint16_t pre_open_stream_count;
uint16_t max_open_streams_intome;
/* random number generator */
uint32_t random_counter;
uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE];
uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE];
/*
* This timer is kept running per endpoint. When it fires it will
* change the secret key. The default is once a hour
*/
struct sctp_timer signature_change;
uint32_t def_cookie_life;
/* defaults to 0 */
uint32_t auto_close_time;
uint32_t initial_sequence_debug;
uint32_t adaptation_layer_indicator;
uint8_t adaptation_layer_indicator_provided;
uint32_t store_at;
uint32_t max_burst;
uint32_t fr_max_burst;
#ifdef INET6
uint32_t default_flowlabel;
#endif
uint8_t default_dscp;
char current_secret_number;
char last_secret_number;
uint16_t port; /* remote UDP encapsulation port */
};
#ifndef SCTP_ALIGNMENT
#define SCTP_ALIGNMENT 32
#endif
#ifndef SCTP_ALIGNM1
#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1)
#endif
#define sctp_lport ip_inp.inp.inp_lport
struct sctp_pcbtsn_rlog {
uint32_t vtag;
uint16_t strm;
uint16_t seq;
uint16_t sz;
uint16_t flgs;
};
#define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */
struct sctp_inpcb {
/*-
* put an inpcb in front of it all, kind of a waste but we need to
* for compatibility with all the other stuff.
*/
union {
struct inpcb inp;
char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) &
~SCTP_ALIGNM1];
} ip_inp;
#if defined(__APPLE__) && !defined(__Userspace__)
/* leave some space in case i386 inpcb is bigger than ppc */
uint8_t padding[128];
#endif
/* Socket buffer lock protects read_queue and of course sb_cc */
struct sctp_readhead read_queue;
LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */
/* hash of all endpoints for model */
LIST_ENTRY(sctp_inpcb) sctp_hash;
/* count of local addresses bound, 0 if bound all */
int laddr_count;
/* list of addrs in use by the EP, NULL if bound-all */
struct sctpladdr sctp_addr_list;
/* used for source address selection rotation when we are subset bound */
struct sctp_laddr *next_addr_touse;
/* back pointer to our socket */
struct socket *sctp_socket;
uint64_t sctp_features; /* Feature flags */
uint32_t sctp_flags; /* INP state flag set */
uint32_t sctp_mobility_features; /* Mobility Feature flags */
struct sctp_pcb sctp_ep;/* SCTP ep data */
/* head of the hash of all associations */
struct sctpasochead *sctp_tcbhash;
u_long sctp_hashmark;
/* head of the list of all associations */
struct sctpasochead sctp_asoc_list;
#ifdef SCTP_TRACK_FREED_ASOCS
struct sctpasochead sctp_asoc_free_list;
#endif
struct sctp_iterator *inp_starting_point_for_iterator;
uint32_t sctp_frag_point;
uint32_t partial_delivery_point;
uint32_t sctp_context;
uint32_t max_cwnd;
uint8_t local_strreset_support;
uint32_t sctp_cmt_on_off;
uint8_t ecn_supported;
uint8_t prsctp_supported;
uint8_t auth_supported;
uint8_t idata_supported;
uint8_t asconf_supported;
uint8_t reconfig_supported;
uint8_t nrsack_supported;
uint8_t pktdrop_supported;
struct sctp_nonpad_sndrcvinfo def_send;
/*-
* These three are here for the sosend_dgram
* (pkt, pkt_last and control).
* routine. However, I don't think anyone in
* the current FreeBSD kernel calls this. So
* they are candidates with sctp_sendm for
* de-supporting.
*/
struct mbuf *pkt, *pkt_last;
struct mbuf *control;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct mtx inp_mtx;
struct mtx inp_create_mtx;
struct mtx inp_rdata_mtx;
int32_t refcount;
#elif defined(SCTP_PROCESS_LEVEL_LOCKS)
userland_mutex_t inp_mtx;
userland_mutex_t inp_create_mtx;
userland_mutex_t inp_rdata_mtx;
int32_t refcount;
#elif defined(__APPLE__) && !defined(__Userspace__)
#if defined(SCTP_APPLE_RWLOCK)
lck_rw_t *inp_mtx;
#else
lck_mtx_t *inp_mtx;
#endif
lck_mtx_t *inp_create_mtx;
lck_mtx_t *inp_rdata_mtx;
#elif defined(_WIN32) && !defined(__Userspace__)
struct rwlock inp_lock;
struct spinlock inp_create_lock;
struct spinlock inp_rdata_lock;
int32_t refcount;
#elif defined(__Userspace__)
int32_t refcount;
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
int32_t refcount;
uint32_t lock_caller1;
uint32_t lock_caller2;
uint32_t lock_caller3;
uint32_t unlock_caller1;
uint32_t unlock_caller2;
uint32_t unlock_caller3;
uint32_t getlock_caller1;
uint32_t getlock_caller2;
uint32_t getlock_caller3;
uint32_t gen_count;
uint32_t lock_gen_count;
uint32_t unlock_gen_count;
uint32_t getlock_gen_count;
uint32_t i_am_here_file;
uint32_t i_am_here_line;
#endif
uint32_t def_vrf_id;
uint16_t fibnum;
#ifdef SCTP_MVRF
uint32_t *m_vrf_ids;
uint32_t num_vrfs;
uint32_t vrf_size;
#endif
uint32_t total_sends;
uint32_t total_recvs;
uint32_t last_abort_code;
uint32_t total_nospaces;
struct sctpasochead *sctp_asocidhash;
u_long hashasocidmark;
uint32_t sctp_associd_counter;
#ifdef SCTP_ASOCLOG_OF_TSNS
struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE];
uint32_t readlog_index;
#endif
#if defined(__Userspace__)
void *ulp_info;
int (*recv_callback)(struct socket *, union sctp_sockstore, void *, size_t,
struct sctp_rcvinfo, int, void *);
uint32_t send_sb_threshold;
int (*send_callback)(struct socket *, uint32_t);
#endif
};
#if defined(__Userspace__)
int register_recv_cb (struct socket *,
int (*)(struct socket *, union sctp_sockstore, void *, size_t,
struct sctp_rcvinfo, int, void *));
int register_send_cb (struct socket *, uint32_t, int (*)(struct socket *, uint32_t));
int register_ulp_info (struct socket *, void *);
int retrieve_ulp_info (struct socket *, void **);
#endif
struct sctp_tcb {
struct socket *sctp_socket; /* back pointer to socket */
struct sctp_inpcb *sctp_ep; /* back pointer to ep */
LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash
* table */
LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the
* TCB's */
LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid
* hash table
*/
LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */
struct sctp_block_entry *block_entry; /* pointer locked by socket
* send buffer */
struct sctp_association asoc;
/*-
* freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the
* tcb_lock. Its special in this way to help avoid extra mutex calls
* in the reading of data.
*/
uint32_t freed_by_sorcv_sincelast;
uint32_t total_sends;
uint32_t total_recvs;
int freed_from_where;
uint16_t rport; /* remote port in network format */
uint16_t resv;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct mtx tcb_mtx;
struct mtx tcb_send_mtx;
#elif defined(SCTP_PROCESS_LEVEL_LOCKS)
userland_mutex_t tcb_mtx;
userland_mutex_t tcb_send_mtx;
#elif defined(__APPLE__) && !defined(__Userspace__)
lck_mtx_t* tcb_mtx;
lck_mtx_t* tcb_send_mtx;
#elif defined(_WIN32) && !defined(__Userspace__)
struct spinlock tcb_lock;
struct spinlock tcb_send_lock;
#elif defined(__Userspace__)
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
uint32_t caller1;
uint32_t caller2;
uint32_t caller3;
#endif
};
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <netinet/sctp_lock_bsd.h>
#elif defined(__APPLE__) && !defined(__Userspace__)
/*
* Apple MacOS X 10.4 "Tiger"
*/
#include <netinet/sctp_lock_apple_fg.h>
#elif defined(SCTP_PROCESS_LEVEL_LOCKS)
#include <netinet/sctp_process_lock.h>
#elif defined(_WIN32) && !defined(__Userspace__)
#include <netinet/sctp_lock_windows.h>
#elif defined(__Userspace__)
#include <netinet/sctp_lock_userspace.h>
#else
/*
* Pre-5.x FreeBSD, and others.
*/
#include <netinet/sctp_lock_empty.h>
#endif
#if defined(_KERNEL) || defined(__Userspace__)
/* Attention Julian, this is the extern that
* goes with the base info. sctp_pcb.c has
* the real definition.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
VNET_DECLARE(struct sctp_base_info, system_base_info) ;
#else
extern struct sctp_base_info system_base_info;
#endif
#ifdef INET6
int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b);
#endif
void sctp_fill_pcbinfo(struct sctp_pcbinfo *);
struct sctp_ifn *
sctp_find_ifn(void *ifn, uint32_t ifn_index);
struct sctp_vrf *sctp_allocate_vrf(int vrfid);
struct sctp_vrf *sctp_find_vrf(uint32_t vrfid);
void sctp_free_vrf(struct sctp_vrf *vrf);
/*-
* Change address state, can be used if
* O/S supports telling transports about
* changes to IFA/IFN's (link layer triggers).
* If a ifn goes down, we will do src-addr-selection
* and NOT use that, as a source address. This does
* not stop the routing system from routing out
* that interface, but we won't put it as a source.
*/
void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
struct sctp_ifa *
sctp_add_addr_to_vrf(uint32_t vrfid,
void *ifn, uint32_t ifn_index, uint32_t ifn_type,
const char *if_name,
void *ifa, struct sockaddr *addr, uint32_t ifa_flags,
int dynamic_add);
void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu);
void sctp_free_ifn(struct sctp_ifn *sctp_ifnp);
void sctp_free_ifa(struct sctp_ifa *sctp_ifap);
void sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr,
uint32_t ifn_index, const char *if_name);
struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *);
struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t);
#if defined(__FreeBSD__) && !defined(__Userspace__)
int sctp_inpcb_bind(struct socket *, struct sockaddr *,
struct sctp_ifa *,struct thread *);
#elif defined(_WIN32) && !defined(__Userspace__)
int sctp_inpcb_bind(struct socket *, struct sockaddr *,
struct sctp_ifa *,PKTHREAD);
#else
/* struct proc is a dummy for __Userspace__ */
int sctp_inpcb_bind(struct socket *, struct sockaddr *,
struct sctp_ifa *, struct proc *);
#endif
struct sctp_tcb *
sctp_findassociation_addr(struct mbuf *, int,
struct sockaddr *, struct sockaddr *,
struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **,
struct sctp_nets **, uint32_t vrf_id);
struct sctp_tcb *
sctp_findassociation_addr_sa(struct sockaddr *,
struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t);
void
sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *,
struct sctp_tcb *);
/*-
* For this call ep_addr, the to is the destination endpoint address of the
* peer (relative to outbound). The from field is only used if the TCP model
* is enabled and helps distingush amongst the subset bound (non-boundall).
* The TCP model MAY change the actual ep field, this is why it is passed.
*/
struct sctp_tcb *
sctp_findassociation_ep_addr(struct sctp_inpcb **,
struct sockaddr *, struct sctp_nets **, struct sockaddr *,
struct sctp_tcb *);
struct sctp_tcb *
sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock);
struct sctp_tcb *
sctp_findassociation_ep_asocid(struct sctp_inpcb *,
sctp_assoc_t, int);
struct sctp_tcb *
sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *,
struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id);
int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id);
int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id);
void sctp_inpcb_free(struct sctp_inpcb *, int, int);
#define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0
#define SCTP_INITIALIZE_AUTH_PARAMS 1
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct sctp_tcb *
sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
int *, uint32_t, uint32_t, uint16_t, uint16_t, struct thread *,
int);
#elif defined(_WIN32) && !defined(__Userspace__)
struct sctp_tcb *
sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
int *, uint32_t, uint32_t, uint16_t, uint16_t, PKTHREAD, int);
#else
/* proc will be NULL for __Userspace__ */
struct sctp_tcb *
sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
int *, uint32_t, uint32_t, uint16_t, uint16_t, struct proc *,
int);
#endif
int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int);
void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t);
int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport);
void
sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport);
void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t);
void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *);
int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int);
void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *);
int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *);
#if defined(__Userspace__)
void sctp_pcb_init(int);
#else
void sctp_pcb_init(void);
#endif
void sctp_pcb_finish(void);
void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
int
sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int,
struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t);
int
sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *,
struct sctp_nets *);
int sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *);
/* void sctp_drain(void); */
int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *);
int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp);
void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh);
/*-
* Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg
* indicates run on ONLY assoc's of the specified endpoint.
*/
int
sctp_initiate_iterator(inp_func inpf,
asoc_func af,
inp_func inpe,
uint32_t, uint32_t,
uint32_t, void *,
uint32_t,
end_func ef,
struct sctp_inpcb *,
uint8_t co_off);
#if defined(__FreeBSD__) && !defined(__Userspace__)
#if defined(SCTP_MCORE_INPUT) && defined(SMP)
void
sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use);
#endif
#endif
#endif /* _KERNEL */
#endif /* !__sctp_pcb_h__ */

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ext/sctp/usrsctp/usrsctplib/netinet/sctp_peeloff.c Normal file
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@ -0,0 +1,303 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_peeloff.c 362054 2020-06-11 13:34:09Z tuexen $");
#endif
#include <netinet/sctp_os.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_var.h>
#include <netinet/sctp_var.h>
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp.h>
#include <netinet/sctp_uio.h>
#include <netinet/sctp_peeloff.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_auth.h>
int
sctp_can_peel_off(struct socket *head, sctp_assoc_t assoc_id)
{
struct sctp_inpcb *inp;
struct sctp_tcb *stcb;
uint32_t state;
if (head == NULL) {
SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, EBADF);
return (EBADF);
}
inp = (struct sctp_inpcb *)head->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, EFAULT);
return (EFAULT);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, EOPNOTSUPP);
return (EOPNOTSUPP);
}
stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_PEELOFF, ENOENT);
return (ENOENT);
}
state = SCTP_GET_STATE(stcb);
if ((state == SCTP_STATE_EMPTY) ||
(state == SCTP_STATE_INUSE)) {
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_PEELOFF, ENOTCONN);
return (ENOTCONN);
}
SCTP_TCB_UNLOCK(stcb);
/* We are clear to peel this one off */
return (0);
}
int
sctp_do_peeloff(struct socket *head, struct socket *so, sctp_assoc_t assoc_id)
{
struct sctp_inpcb *inp, *n_inp;
struct sctp_tcb *stcb;
uint32_t state;
inp = (struct sctp_inpcb *)head->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, EFAULT);
return (EFAULT);
}
stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, ENOTCONN);
return (ENOTCONN);
}
state = SCTP_GET_STATE(stcb);
if ((state == SCTP_STATE_EMPTY) ||
(state == SCTP_STATE_INUSE)) {
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, ENOTCONN);
return (ENOTCONN);
}
n_inp = (struct sctp_inpcb *)so->so_pcb;
n_inp->sctp_flags = (SCTP_PCB_FLAGS_UDPTYPE |
SCTP_PCB_FLAGS_CONNECTED |
SCTP_PCB_FLAGS_IN_TCPPOOL | /* Turn on Blocking IO */
(SCTP_PCB_COPY_FLAGS & inp->sctp_flags));
n_inp->sctp_socket = so;
n_inp->sctp_features = inp->sctp_features;
n_inp->sctp_mobility_features = inp->sctp_mobility_features;
n_inp->sctp_frag_point = inp->sctp_frag_point;
n_inp->sctp_cmt_on_off = inp->sctp_cmt_on_off;
n_inp->ecn_supported = inp->ecn_supported;
n_inp->prsctp_supported = inp->prsctp_supported;
n_inp->auth_supported = inp->auth_supported;
n_inp->asconf_supported = inp->asconf_supported;
n_inp->reconfig_supported = inp->reconfig_supported;
n_inp->nrsack_supported = inp->nrsack_supported;
n_inp->pktdrop_supported = inp->pktdrop_supported;
n_inp->partial_delivery_point = inp->partial_delivery_point;
n_inp->sctp_context = inp->sctp_context;
n_inp->max_cwnd = inp->max_cwnd;
n_inp->local_strreset_support = inp->local_strreset_support;
n_inp->inp_starting_point_for_iterator = NULL;
/* copy in the authentication parameters from the original endpoint */
if (n_inp->sctp_ep.local_hmacs)
sctp_free_hmaclist(n_inp->sctp_ep.local_hmacs);
n_inp->sctp_ep.local_hmacs =
sctp_copy_hmaclist(inp->sctp_ep.local_hmacs);
if (n_inp->sctp_ep.local_auth_chunks)
sctp_free_chunklist(n_inp->sctp_ep.local_auth_chunks);
n_inp->sctp_ep.local_auth_chunks =
sctp_copy_chunklist(inp->sctp_ep.local_auth_chunks);
(void)sctp_copy_skeylist(&inp->sctp_ep.shared_keys,
&n_inp->sctp_ep.shared_keys);
#if defined(__Userspace__)
n_inp->ulp_info = inp->ulp_info;
n_inp->recv_callback = inp->recv_callback;
n_inp->send_callback = inp->send_callback;
n_inp->send_sb_threshold = inp->send_sb_threshold;
#endif
/*
* Now we must move it from one hash table to another and get the
* stcb in the right place.
*/
sctp_move_pcb_and_assoc(inp, n_inp, stcb);
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
#if defined(__FreeBSD__) && !defined(__Userspace__)
sctp_pull_off_control_to_new_inp(inp, n_inp, stcb, SBL_WAIT);
#else
sctp_pull_off_control_to_new_inp(inp, n_inp, stcb, M_WAITOK);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (0);
}
#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
struct socket *
sctp_get_peeloff(struct socket *head, sctp_assoc_t assoc_id, int *error)
{
struct socket *newso;
struct sctp_inpcb *inp, *n_inp;
struct sctp_tcb *stcb;
SCTPDBG(SCTP_DEBUG_PEEL1, "SCTP peel-off called\n");
inp = (struct sctp_inpcb *)head->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, EFAULT);
*error = EFAULT;
return (NULL);
}
stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF, ENOTCONN);
*error = ENOTCONN;
return (NULL);
}
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
#if defined(__FreeBSD__) && !defined(__Userspace__)
CURVNET_SET(head->so_vnet);
#endif
newso = sonewconn(head, SS_ISCONNECTED
#if defined(__APPLE__) && !defined(__Userspace__)
, NULL
#endif
);
#if defined(__FreeBSD__) && !defined(__Userspace__)
CURVNET_RESTORE();
#endif
if (newso == NULL) {
SCTPDBG(SCTP_DEBUG_PEEL1, "sctp_peeloff:sonewconn failed\n");
SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTP_PEELOFF, ENOMEM);
*error = ENOMEM;
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
}
#if defined(__APPLE__) && !defined(__Userspace__)
else {
SCTP_SOCKET_LOCK(newso, 1);
}
#endif
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
n_inp = (struct sctp_inpcb *)newso->so_pcb;
SOCK_LOCK(head);
n_inp->sctp_flags = (SCTP_PCB_FLAGS_UDPTYPE |
SCTP_PCB_FLAGS_CONNECTED |
SCTP_PCB_FLAGS_IN_TCPPOOL | /* Turn on Blocking IO */
(SCTP_PCB_COPY_FLAGS & inp->sctp_flags));
n_inp->sctp_features = inp->sctp_features;
n_inp->sctp_frag_point = inp->sctp_frag_point;
n_inp->sctp_cmt_on_off = inp->sctp_cmt_on_off;
n_inp->ecn_supported = inp->ecn_supported;
n_inp->prsctp_supported = inp->prsctp_supported;
n_inp->auth_supported = inp->auth_supported;
n_inp->asconf_supported = inp->asconf_supported;
n_inp->reconfig_supported = inp->reconfig_supported;
n_inp->nrsack_supported = inp->nrsack_supported;
n_inp->pktdrop_supported = inp->pktdrop_supported;
n_inp->partial_delivery_point = inp->partial_delivery_point;
n_inp->sctp_context = inp->sctp_context;
n_inp->max_cwnd = inp->max_cwnd;
n_inp->local_strreset_support = inp->local_strreset_support;
n_inp->inp_starting_point_for_iterator = NULL;
#if defined(__Userspace__)
n_inp->ulp_info = inp->ulp_info;
n_inp->recv_callback = inp->recv_callback;
n_inp->send_callback = inp->send_callback;
n_inp->send_sb_threshold = inp->send_sb_threshold;
#endif
/* copy in the authentication parameters from the original endpoint */
if (n_inp->sctp_ep.local_hmacs)
sctp_free_hmaclist(n_inp->sctp_ep.local_hmacs);
n_inp->sctp_ep.local_hmacs =
sctp_copy_hmaclist(inp->sctp_ep.local_hmacs);
if (n_inp->sctp_ep.local_auth_chunks)
sctp_free_chunklist(n_inp->sctp_ep.local_auth_chunks);
n_inp->sctp_ep.local_auth_chunks =
sctp_copy_chunklist(inp->sctp_ep.local_auth_chunks);
(void)sctp_copy_skeylist(&inp->sctp_ep.shared_keys,
&n_inp->sctp_ep.shared_keys);
n_inp->sctp_socket = newso;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) {
sctp_feature_off(n_inp, SCTP_PCB_FLAGS_AUTOCLOSE);
n_inp->sctp_ep.auto_close_time = 0;
sctp_timer_stop(SCTP_TIMER_TYPE_AUTOCLOSE, n_inp, stcb, NULL,
SCTP_FROM_SCTP_PEELOFF + SCTP_LOC_1);
}
/* Turn off any non-blocking semantic. */
SOCK_LOCK(newso);
SCTP_CLEAR_SO_NBIO(newso);
newso->so_state |= SS_ISCONNECTED;
SOCK_UNLOCK(newso);
/* We remove it right away */
#ifdef SCTP_LOCK_LOGGING
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
}
#endif
TAILQ_REMOVE(&head->so_comp, newso, so_list);
head->so_qlen--;
SOCK_UNLOCK(head);
/*
* Now we must move it from one hash table to another and get the
* stcb in the right place.
*/
sctp_move_pcb_and_assoc(inp, n_inp, stcb);
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
/*
* And now the final hack. We move data in the pending side i.e.
* head to the new socket buffer. Let the GRUBBING begin :-0
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
sctp_pull_off_control_to_new_inp(inp, n_inp, stcb, SBL_WAIT);
#else
sctp_pull_off_control_to_new_inp(inp, n_inp, stcb, M_WAITOK);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (newso);
}
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_peeloff.h 309607 2016-12-06 10:21:25Z tuexen $");
#endif
#ifndef _NETINET_SCTP_PEELOFF_H_
#define _NETINET_SCTP_PEELOFF_H_
#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
/* socket option peeloff */
struct sctp_peeloff_opt {
#if !(defined(_WIN32) && !defined(__Userspace__))
int s;
#else
HANDLE s;
#endif
sctp_assoc_t assoc_id;
#if !(defined(_WIN32) && !defined(__Userspace__))
int new_sd;
#else
HANDLE new_sd;
#endif
};
#endif /* HAVE_SCTP_PEELOFF_SOCKOPT */
#if defined(_KERNEL)
int sctp_can_peel_off(struct socket *, sctp_assoc_t);
int sctp_do_peeloff(struct socket *, struct socket *, sctp_assoc_t);
#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
struct socket *sctp_get_peeloff(struct socket *, sctp_assoc_t, int *);
int sctp_peeloff_option(struct proc *p, struct sctp_peeloff_opt *peeloff);
#endif /* HAVE_SCTP_PEELOFF_SOCKOPT */
#endif /* _KERNEL */
#if defined(__Userspace__)
int sctp_can_peel_off(struct socket *, sctp_assoc_t);
int sctp_do_peeloff(struct socket *, struct socket *, sctp_assoc_t);
#endif /* __Userspace__ */
#endif /* _NETINET_SCTP_PEELOFF_H_ */

677
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __sctp_process_lock_h__
#define __sctp_process_lock_h__
/*
* Need to yet define five atomic fuctions or
* their equivalant.
* - atomic_add_int(&foo, val) - add atomically the value
* - atomic_fetchadd_int(&foo, val) - does same as atomic_add_int
* but value it was is returned.
* - atomic_subtract_int(&foo, val) - can be made from atomic_add_int()
*
* - atomic_cmpset_int(&foo, value, newvalue) - Does a set of newvalue
* in foo if and only if
* foo is value. Returns 0
* on success.
*/
#ifdef SCTP_PER_SOCKET_LOCKING
/*
* per socket level locking
*/
#if defined(_WIN32)
/* Lock for INFO stuff */
#define SCTP_INP_INFO_LOCK_INIT()
#define SCTP_INP_INFO_RLOCK()
#define SCTP_INP_INFO_RUNLOCK()
#define SCTP_INP_INFO_WLOCK()
#define SCTP_INP_INFO_WUNLOCK()
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_IPI_COUNT_INIT()
#define SCTP_IPI_COUNT_DESTROY()
#else
#define SCTP_INP_INFO_LOCK_INIT()
#define SCTP_INP_INFO_RLOCK()
#define SCTP_INP_INFO_RUNLOCK()
#define SCTP_INP_INFO_WLOCK()
#define SCTP_INP_INFO_WUNLOCK()
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_IPI_COUNT_INIT()
#define SCTP_IPI_COUNT_DESTROY()
#endif
#define SCTP_TCB_SEND_LOCK_INIT(_tcb)
#define SCTP_TCB_SEND_LOCK_DESTROY(_tcb)
#define SCTP_TCB_SEND_LOCK(_tcb)
#define SCTP_TCB_SEND_UNLOCK(_tcb)
/* Lock for INP */
#define SCTP_INP_LOCK_INIT(_inp)
#define SCTP_INP_LOCK_DESTROY(_inp)
#define SCTP_INP_RLOCK(_inp)
#define SCTP_INP_RUNLOCK(_inp)
#define SCTP_INP_WLOCK(_inp)
#define SCTP_INP_WUNLOCK(_inp)
#define SCTP_INP_RLOCK_ASSERT(_inp)
#define SCTP_INP_WLOCK_ASSERT(_inp)
#define SCTP_INP_INCR_REF(_inp)
#define SCTP_INP_DECR_REF(_inp)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
#define SCTP_ASOC_CREATE_LOCK(_inp)
#define SCTP_ASOC_CREATE_UNLOCK(_inp)
#define SCTP_INP_READ_INIT(_inp)
#define SCTP_INP_READ_DESTROY(_inp)
#define SCTP_INP_READ_LOCK(_inp)
#define SCTP_INP_READ_UNLOCK(_inp)
/* Lock for TCB */
#define SCTP_TCB_LOCK_INIT(_tcb)
#define SCTP_TCB_LOCK_DESTROY(_tcb)
#define SCTP_TCB_LOCK(_tcb)
#define SCTP_TCB_TRYLOCK(_tcb) 1
#define SCTP_TCB_UNLOCK(_tcb)
#define SCTP_TCB_UNLOCK_IFOWNED(_tcb)
#define SCTP_TCB_LOCK_ASSERT(_tcb)
#else
/*
* per tcb level locking
*/
#define SCTP_IPI_COUNT_INIT()
#if defined(_WIN32)
#define SCTP_WQ_ADDR_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_LOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_UNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_LOCK_ASSERT()
#define SCTP_INP_INFO_LOCK_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_LOCK_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_TRYLOCK() \
TryEnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_IP_PKTLOG_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_DESTROY () \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_LOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_UNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
/*
* The INP locks we will use for locking an SCTP endpoint, so for example if
* we want to change something at the endpoint level for example random_store
* or cookie secrets we lock the INP level.
*/
#define SCTP_INP_READ_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_LOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_UNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_LOCK_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_LOCK_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
EnterCriticalSection(&(_inp)->inp_mtx); \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
EnterCriticalSection(&(_inp)->inp_mtx); \
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_WLOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RLOCK_ASSERT(_tcb)
#define SCTP_INP_WLOCK_ASSERT(_tcb)
#define SCTP_TCB_SEND_LOCK_INIT(_tcb) \
InitializeCriticalSection(&(_tcb)->tcb_send_mtx)
#define SCTP_TCB_SEND_LOCK_DESTROY(_tcb) \
DeleteCriticalSection(&(_tcb)->tcb_send_mtx)
#define SCTP_TCB_SEND_LOCK(_tcb) \
EnterCriticalSection(&(_tcb)->tcb_send_mtx)
#define SCTP_TCB_SEND_UNLOCK(_tcb) \
LeaveCriticalSection(&(_tcb)->tcb_send_mtx)
#define SCTP_INP_INCR_REF(_inp) atomic_add_int(&((_inp)->refcount), 1)
#define SCTP_INP_DECR_REF(_inp) atomic_add_int(&((_inp)->refcount), -1)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_create_mtx)
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_create_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
EnterCriticalSection(&(_inp)->inp_create_mtx); \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_create_mtx)
#endif
#define SCTP_INP_RUNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_WUNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_mtx)
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_create_mtx)
/*
* For the majority of things (once we have found the association) we will
* lock the actual association mutex. This will protect all the assoiciation
* level queues and streams and such. We will need to lock the socket layer
* when we stuff data up into the receiving sb_mb. I.e. we will need to do an
* extra SOCKBUF_LOCK(&so->so_rcv) even though the association is locked.
*/
#define SCTP_TCB_LOCK_INIT(_tcb) \
InitializeCriticalSection(&(_tcb)->tcb_mtx)
#define SCTP_TCB_LOCK_DESTROY(_tcb) \
DeleteCriticalSection(&(_tcb)->tcb_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
EnterCriticalSection(&(_tcb)->tcb_mtx); \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
EnterCriticalSection(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_TRYLOCK(_tcb) ((TryEnterCriticalSection(&(_tcb)->tcb_mtx)))
#define SCTP_TCB_UNLOCK(_tcb) \
LeaveCriticalSection(&(_tcb)->tcb_mtx)
#define SCTP_TCB_LOCK_ASSERT(_tcb)
#else /* all Userspaces except Windows */
#define SCTP_WQ_ADDR_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(wq_addr_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_WQ_ADDR_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(wq_addr_mtx))
#ifdef INVARIANTS
#define SCTP_WQ_ADDR_LOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(wq_addr_mtx)) == 0, ("%s: wq_addr_mtx already locked", __func__))
#define SCTP_WQ_ADDR_UNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(wq_addr_mtx)) == 0, ("%s: wq_addr_mtx not locked", __func__))
#else
#define SCTP_WQ_ADDR_LOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_UNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(wq_addr_mtx))
#endif
#define SCTP_WQ_ADDR_LOCK_ASSERT() \
KASSERT(pthread_mutex_trylock(&SCTP_BASE_INFO(wq_addr_mtx)) == EBUSY, ("%s: wq_addr_mtx not locked", __func__))
#define SCTP_INP_INFO_LOCK_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(ipi_ep_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_INP_INFO_LOCK_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(ipi_ep_mtx))
#ifdef INVARIANTS
#define SCTP_INP_INFO_RLOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s: ipi_ep_mtx already locked", __func__))
#define SCTP_INP_INFO_WLOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s: ipi_ep_mtx already locked", __func__))
#define SCTP_INP_INFO_RUNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s: ipi_ep_mtx not locked", __func__))
#define SCTP_INP_INFO_WUNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s: ipi_ep_mtx not locked", __func__))
#else
#define SCTP_INP_INFO_RLOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WLOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RUNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WUNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#endif
#define SCTP_INP_INFO_TRYLOCK() \
(!(pthread_mutex_trylock(&SCTP_BASE_INFO(ipi_ep_mtx))))
#define SCTP_IP_PKTLOG_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(ipi_pktlog_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_IP_PKTLOG_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#ifdef INVARIANTS
#define SCTP_IP_PKTLOG_LOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_pktlog_mtx)) == 0, ("%s: ipi_pktlog_mtx already locked", __func__))
#define SCTP_IP_PKTLOG_UNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_pktlog_mtx)) == 0, ("%s: ipi_pktlog_mtx not locked", __func__))
#else
#define SCTP_IP_PKTLOG_LOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_UNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#endif
/*
* The INP locks we will use for locking an SCTP endpoint, so for example if
* we want to change something at the endpoint level for example random_store
* or cookie secrets we lock the INP level.
*/
#define SCTP_INP_READ_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_rdata_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_INP_READ_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_rdata_mtx)
#ifdef INVARIANTS
#define SCTP_INP_READ_LOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_rdata_mtx) == 0, ("%s: inp_rdata_mtx already locked", __func__))
#define SCTP_INP_READ_UNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_rdata_mtx) == 0, ("%s: inp_rdata_mtx not locked", __func__))
#else
#define SCTP_INP_READ_LOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_UNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_rdata_mtx)
#endif
#define SCTP_INP_LOCK_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_INP_LOCK_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx already locked", __func__)) \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx already locked", __func__))
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx already locked", __func__))
#define SCTP_INP_WLOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx already locked", __func__))
#endif
#define SCTP_INP_RUNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx not locked", __func__))
#define SCTP_INP_WUNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_mtx) == 0, ("%s: inp_mtx not locked", __func__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
(void)pthread_mutex_lock(&(_inp)->inp_mtx); \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
(void)pthread_mutex_lock(&(_inp)->inp_mtx); \
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_mtx)
#define SCTP_INP_WLOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RUNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_mtx)
#define SCTP_INP_WUNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RLOCK_ASSERT(_inp) \
KASSERT(pthread_mutex_trylock(&(_inp)->inp_mtx) == EBUSY, ("%s: inp_mtx not locked", __func__))
#define SCTP_INP_WLOCK_ASSERT(_inp) \
KASSERT(pthread_mutex_trylock(&(_inp)->inp_mtx) == EBUSY, ("%s: inp_mtx not locked", __func__))
#define SCTP_INP_INCR_REF(_inp) atomic_add_int(&((_inp)->refcount), 1)
#define SCTP_INP_DECR_REF(_inp) atomic_add_int(&((_inp)->refcount), -1)
#define SCTP_TCB_SEND_LOCK_INIT(_tcb) \
(void)pthread_mutex_init(&(_tcb)->tcb_send_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_TCB_SEND_LOCK_DESTROY(_tcb) \
(void)pthread_mutex_destroy(&(_tcb)->tcb_send_mtx)
#ifdef INVARIANTS
#define SCTP_TCB_SEND_LOCK(_tcb) \
KASSERT(pthread_mutex_lock(&(_tcb)->tcb_send_mtx) == 0, ("%s: tcb_send_mtx already locked", __func__))
#define SCTP_TCB_SEND_UNLOCK(_tcb) \
KASSERT(pthread_mutex_unlock(&(_tcb)->tcb_send_mtx) == 0, ("%s: tcb_send_mtx not locked", __func__))
#else
#define SCTP_TCB_SEND_LOCK(_tcb) \
(void)pthread_mutex_lock(&(_tcb)->tcb_send_mtx)
#define SCTP_TCB_SEND_UNLOCK(_tcb) \
(void)pthread_mutex_unlock(&(_tcb)->tcb_send_mtx)
#endif
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_create_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_create_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_create_mtx) == 0, ("%s: inp_create_mtx already locked", __func__)) \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_create_mtx) == 0, ("%s: inp_create_mtx already locked", __func__))
#endif
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_create_mtx) == 0, ("%s: inp_create_mtx not locked", __func__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
(void)pthread_mutex_lock(&(_inp)->inp_create_mtx); \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_create_mtx)
#endif
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_create_mtx)
#endif
/*
* For the majority of things (once we have found the association) we will
* lock the actual association mutex. This will protect all the assoiciation
* level queues and streams and such. We will need to lock the socket layer
* when we stuff data up into the receiving sb_mb. I.e. we will need to do an
* extra SOCKBUF_LOCK(&so->so_rcv) even though the association is locked.
*/
#define SCTP_TCB_LOCK_INIT(_tcb) \
(void)pthread_mutex_init(&(_tcb)->tcb_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_TCB_LOCK_DESTROY(_tcb) \
(void)pthread_mutex_destroy(&(_tcb)->tcb_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
KASSERT(pthread_mutex_lock(&(_tcb)->tcb_mtx) == 0, ("%s: tcb_mtx already locked", __func__)) \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
KASSERT(pthread_mutex_lock(&(_tcb)->tcb_mtx) == 0, ("%s: tcb_mtx already locked", __func__))
#endif
#define SCTP_TCB_UNLOCK(_tcb) \
KASSERT(pthread_mutex_unlock(&(_tcb)->tcb_mtx) == 0, ("%s: tcb_mtx not locked", __func__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
(void)pthread_mutex_lock(&(_tcb)->tcb_mtx); \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
(void)pthread_mutex_lock(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_UNLOCK(_tcb) (void)pthread_mutex_unlock(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_LOCK_ASSERT(_tcb) \
KASSERT(pthread_mutex_trylock(&(_tcb)->tcb_mtx) == EBUSY, ("%s: tcb_mtx not locked", __func__))
#define SCTP_TCB_TRYLOCK(_tcb) (!(pthread_mutex_trylock(&(_tcb)->tcb_mtx)))
#endif
#endif /* SCTP_PER_SOCKET_LOCKING */
/*
* common locks
*/
/* copied over to compile */
#define SCTP_INP_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_INP_READ_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
/* socket locks */
#if defined(_WIN32)
#define SOCKBUF_LOCK_ASSERT(_so_buf)
#define SOCKBUF_LOCK(_so_buf) \
EnterCriticalSection(&(_so_buf)->sb_mtx)
#define SOCKBUF_UNLOCK(_so_buf) \
LeaveCriticalSection(&(_so_buf)->sb_mtx)
#define SOCK_LOCK(_so) \
SOCKBUF_LOCK(&(_so)->so_rcv)
#define SOCK_UNLOCK(_so) \
SOCKBUF_UNLOCK(&(_so)->so_rcv)
#else
#define SOCKBUF_LOCK_ASSERT(_so_buf) \
KASSERT(pthread_mutex_trylock(SOCKBUF_MTX(_so_buf)) == EBUSY, ("%s: socket buffer not locked", __func__))
#ifdef INVARIANTS
#define SOCKBUF_LOCK(_so_buf) \
KASSERT(pthread_mutex_lock(SOCKBUF_MTX(_so_buf)) == 0, ("%s: sockbuf_mtx already locked", __func__))
#define SOCKBUF_UNLOCK(_so_buf) \
KASSERT(pthread_mutex_unlock(SOCKBUF_MTX(_so_buf)) == 0, ("%s: sockbuf_mtx not locked", __func__))
#else
#define SOCKBUF_LOCK(_so_buf) \
pthread_mutex_lock(SOCKBUF_MTX(_so_buf))
#define SOCKBUF_UNLOCK(_so_buf) \
pthread_mutex_unlock(SOCKBUF_MTX(_so_buf))
#endif
#define SOCK_LOCK(_so) \
SOCKBUF_LOCK(&(_so)->so_rcv)
#define SOCK_UNLOCK(_so) \
SOCKBUF_UNLOCK(&(_so)->so_rcv)
#endif
#define SCTP_STATLOG_INIT_LOCK()
#define SCTP_STATLOG_LOCK()
#define SCTP_STATLOG_UNLOCK()
#define SCTP_STATLOG_DESTROY()
#if defined(_WIN32)
/* address list locks */
#define SCTP_IPI_ADDR_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
/* iterator locks */
#define SCTP_ITERATOR_LOCK_INIT() \
InitializeCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_LOCK_DESTROY() \
DeleteCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_LOCK() \
EnterCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_UNLOCK() \
LeaveCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_IPI_ITERATOR_WQ_INIT() \
InitializeCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_DESTROY() \
DeleteCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
EnterCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
LeaveCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#else
/* address list locks */
#define SCTP_IPI_ADDR_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(ipi_addr_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_IPI_ADDR_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(ipi_addr_mtx))
#ifdef INVARIANTS
#define SCTP_IPI_ADDR_RLOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s: ipi_addr_mtx already locked", __func__))
#define SCTP_IPI_ADDR_RUNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s: ipi_addr_mtx not locked", __func__))
#define SCTP_IPI_ADDR_WLOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s: ipi_addr_mtx already locked", __func__))
#define SCTP_IPI_ADDR_WUNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s: ipi_addr_mtx not locked", __func__))
#define SCTP_IPI_ADDR_LOCK_ASSERT() \
KASSERT(pthread_mutex_trylock(&SCTP_BASE_INFO(ipi_addr_mtx)) == EBUSY, ("%s: ipi_addr_mtx not locked", __func__))
#define SCTP_IPI_ADDR_WLOCK_ASSERT() \
KASSERT(pthread_mutex_trylock(&SCTP_BASE_INFO(ipi_addr_mtx)) == EBUSY, ("%s: ipi_addr_mtx not locked", __func__))
#else
#define SCTP_IPI_ADDR_RLOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RUNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WLOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WUNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
#endif
/* iterator locks */
#define SCTP_ITERATOR_LOCK_INIT() \
(void)pthread_mutex_init(&sctp_it_ctl.it_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_ITERATOR_LOCK_DESTROY() \
(void)pthread_mutex_destroy(&sctp_it_ctl.it_mtx)
#ifdef INVARIANTS
#define SCTP_ITERATOR_LOCK() \
KASSERT(pthread_mutex_lock(&sctp_it_ctl.it_mtx) == 0, ("%s: it_mtx already locked", __func__))
#define SCTP_ITERATOR_UNLOCK() \
KASSERT(pthread_mutex_unlock(&sctp_it_ctl.it_mtx) == 0, ("%s: it_mtx not locked", __func__))
#else
#define SCTP_ITERATOR_LOCK() \
(void)pthread_mutex_lock(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_UNLOCK() \
(void)pthread_mutex_unlock(&sctp_it_ctl.it_mtx)
#endif
#define SCTP_IPI_ITERATOR_WQ_INIT() \
(void)pthread_mutex_init(&sctp_it_ctl.ipi_iterator_wq_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_IPI_ITERATOR_WQ_DESTROY() \
(void)pthread_mutex_destroy(&sctp_it_ctl.ipi_iterator_wq_mtx)
#ifdef INVARIANTS
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
KASSERT(pthread_mutex_lock(&sctp_it_ctl.ipi_iterator_wq_mtx) == 0, ("%s: ipi_iterator_wq_mtx already locked", __func__))
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
KASSERT(pthread_mutex_unlock(&sctp_it_ctl.ipi_iterator_wq_mtx) == 0, ("%s: ipi_iterator_wq_mtx not locked", __func__))
#else
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
(void)pthread_mutex_lock(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
(void)pthread_mutex_unlock(&sctp_it_ctl.ipi_iterator_wq_mtx)
#endif
#endif
#define SCTP_INCR_EP_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_ep), 1)
#define SCTP_DECR_EP_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_ep), 1)
#define SCTP_INCR_ASOC_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_asoc), 1)
#define SCTP_DECR_ASOC_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_asoc), 1)
#define SCTP_INCR_LADDR_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_laddr), 1)
#define SCTP_DECR_LADDR_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_laddr), 1)
#define SCTP_INCR_RADDR_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_raddr), 1)
#define SCTP_DECR_RADDR_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_raddr), 1)
#define SCTP_INCR_CHK_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_chunk), 1)
#define SCTP_DECR_CHK_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_chunk), 1)
#define SCTP_INCR_READQ_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_readq), 1)
#define SCTP_DECR_READQ_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_readq), 1)
#define SCTP_INCR_STRMOQ_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1)
#define SCTP_DECR_STRMOQ_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1)
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2013, by Michael Tuexen. All rights reserved.
* Copyright (c) 2013, by Lally Singh. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <netinet/sctp_sha1.h>
#if defined(SCTP_USE_NSS_SHA1)
/* A SHA-1 Digest is 160 bits, or 20 bytes */
#define SHA_DIGEST_LENGTH (20)
void
sctp_sha1_init(struct sctp_sha1_context *ctx)
{
ctx->pk11_ctx = PK11_CreateDigestContext(SEC_OID_SHA1);
PK11_DigestBegin(ctx->pk11_ctx);
}
void
sctp_sha1_update(struct sctp_sha1_context *ctx, const unsigned char *ptr, unsigned int siz)
{
PK11_DigestOp(ctx->pk11_ctx, ptr, siz);
}
void
sctp_sha1_final(unsigned char *digest, struct sctp_sha1_context *ctx)
{
unsigned int output_len = 0;
PK11_DigestFinal(ctx->pk11_ctx, digest, &output_len, SHA_DIGEST_LENGTH);
PK11_DestroyContext(ctx->pk11_ctx, PR_TRUE);
}
#elif defined(SCTP_USE_OPENSSL_SHA1)
void
sctp_sha1_init(struct sctp_sha1_context *ctx)
{
SHA1_Init(&ctx->sha_ctx);
}
void
sctp_sha1_update(struct sctp_sha1_context *ctx, const unsigned char *ptr, unsigned int siz)
{
SHA1_Update(&ctx->sha_ctx, ptr, (unsigned long)siz);
}
void
sctp_sha1_final(unsigned char *digest, struct sctp_sha1_context *ctx)
{
SHA1_Final(digest, &ctx->sha_ctx);
}
#else
#include <string.h>
#if defined(_WIN32) && defined(__Userspace__)
#include <winsock2.h>
#elif !(defined(_WIN32) && !defined(__Userspace__))
#include <arpa/inet.h>
#endif
#define F1(B,C,D) (((B & C) | ((~B) & D))) /* 0 <= t <= 19 */
#define F2(B,C,D) (B ^ C ^ D) /* 20 <= t <= 39 */
#define F3(B,C,D) ((B & C) | (B & D) | (C & D)) /* 40 <= t <= 59 */
#define F4(B,C,D) (B ^ C ^ D) /* 600 <= t <= 79 */
/* circular shift */
#define CSHIFT(A,B) ((B << A) | (B >> (32-A)))
#define K1 0x5a827999 /* 0 <= t <= 19 */
#define K2 0x6ed9eba1 /* 20 <= t <= 39 */
#define K3 0x8f1bbcdc /* 40 <= t <= 59 */
#define K4 0xca62c1d6 /* 60 <= t <= 79 */
#define H0INIT 0x67452301
#define H1INIT 0xefcdab89
#define H2INIT 0x98badcfe
#define H3INIT 0x10325476
#define H4INIT 0xc3d2e1f0
void
sctp_sha1_init(struct sctp_sha1_context *ctx)
{
/* Init the SHA-1 context structure */
ctx->A = 0;
ctx->B = 0;
ctx->C = 0;
ctx->D = 0;
ctx->E = 0;
ctx->H0 = H0INIT;
ctx->H1 = H1INIT;
ctx->H2 = H2INIT;
ctx->H3 = H3INIT;
ctx->H4 = H4INIT;
ctx->TEMP = 0;
memset(ctx->words, 0, sizeof(ctx->words));
ctx->how_many_in_block = 0;
ctx->running_total = 0;
}
static void
sctp_sha1_process_a_block(struct sctp_sha1_context *ctx, unsigned int *block)
{
int i;
/* init the W0-W15 to the block of words being hashed. */
/* step a) */
for (i = 0; i < 16; i++) {
ctx->words[i] = ntohl(block[i]);
}
/* now init the rest based on the SHA-1 formula, step b) */
for (i = 16; i < 80; i++) {
ctx->words[i] = CSHIFT(1, ((ctx->words[(i - 3)]) ^
(ctx->words[(i - 8)]) ^
(ctx->words[(i - 14)]) ^
(ctx->words[(i - 16)])));
}
/* step c) */
ctx->A = ctx->H0;
ctx->B = ctx->H1;
ctx->C = ctx->H2;
ctx->D = ctx->H3;
ctx->E = ctx->H4;
/* step d) */
for (i = 0; i < 80; i++) {
if (i < 20) {
ctx->TEMP = ((CSHIFT(5, ctx->A)) +
(F1(ctx->B, ctx->C, ctx->D)) +
(ctx->E) +
ctx->words[i] +
K1);
} else if (i < 40) {
ctx->TEMP = ((CSHIFT(5, ctx->A)) +
(F2(ctx->B, ctx->C, ctx->D)) +
(ctx->E) +
(ctx->words[i]) +
K2);
} else if (i < 60) {
ctx->TEMP = ((CSHIFT(5, ctx->A)) +
(F3(ctx->B, ctx->C, ctx->D)) +
(ctx->E) +
(ctx->words[i]) +
K3);
} else {
ctx->TEMP = ((CSHIFT(5, ctx->A)) +
(F4(ctx->B, ctx->C, ctx->D)) +
(ctx->E) +
(ctx->words[i]) +
K4);
}
ctx->E = ctx->D;
ctx->D = ctx->C;
ctx->C = CSHIFT(30, ctx->B);
ctx->B = ctx->A;
ctx->A = ctx->TEMP;
}
/* step e) */
ctx->H0 = (ctx->H0) + (ctx->A);
ctx->H1 = (ctx->H1) + (ctx->B);
ctx->H2 = (ctx->H2) + (ctx->C);
ctx->H3 = (ctx->H3) + (ctx->D);
ctx->H4 = (ctx->H4) + (ctx->E);
}
void
sctp_sha1_update(struct sctp_sha1_context *ctx, const unsigned char *ptr, unsigned int siz)
{
unsigned int number_left, left_to_fill;
number_left = siz;
while (number_left > 0) {
left_to_fill = sizeof(ctx->sha_block) - ctx->how_many_in_block;
if (left_to_fill > number_left) {
/* can only partially fill up this one */
memcpy(&ctx->sha_block[ctx->how_many_in_block],
ptr, number_left);
ctx->how_many_in_block += number_left;
ctx->running_total += number_left;
break;
} else {
/* block is now full, process it */
memcpy(&ctx->sha_block[ctx->how_many_in_block],
ptr, left_to_fill);
sctp_sha1_process_a_block(ctx,
(unsigned int *)ctx->sha_block);
number_left -= left_to_fill;
ctx->running_total += left_to_fill;
ctx->how_many_in_block = 0;
ptr = (const unsigned char *)(ptr + left_to_fill);
}
}
}
void
sctp_sha1_final(unsigned char *digest, struct sctp_sha1_context *ctx)
{
/*
* if any left in block fill with padding and process. Then transfer
* the digest to the pointer. At the last block some special rules
* need to apply. We must add a 1 bit following the message, then we
* pad with 0's. The total size is encoded as a 64 bit number at the
* end. Now if the last buffer has more than 55 octets in it we
* cannot fit the 64 bit number + 10000000 pad on the end and must
* add the 10000000 pad, pad the rest of the message with 0's and
* then create an all 0 message with just the 64 bit size at the end
* and run this block through by itself. Also the 64 bit int must
* be in network byte order.
*/
int left_to_fill;
unsigned int i, *ptr;
if (ctx->how_many_in_block > 55) {
/*
* special case, we need to process two blocks here. One for
* the current stuff plus possibly the pad. The other for
* the size.
*/
left_to_fill = sizeof(ctx->sha_block) - ctx->how_many_in_block;
if (left_to_fill == 0) {
/* Should not really happen but I am paranoid */
sctp_sha1_process_a_block(ctx,
(unsigned int *)ctx->sha_block);
/* init last block, a bit different than the rest */
ctx->sha_block[0] = '\x80';
for (i = 1; i < sizeof(ctx->sha_block); i++) {
ctx->sha_block[i] = 0x0;
}
} else if (left_to_fill == 1) {
ctx->sha_block[ctx->how_many_in_block] = '\x80';
sctp_sha1_process_a_block(ctx,
(unsigned int *)ctx->sha_block);
/* init last block */
memset(ctx->sha_block, 0, sizeof(ctx->sha_block));
} else {
ctx->sha_block[ctx->how_many_in_block] = '\x80';
for (i = (ctx->how_many_in_block + 1);
i < sizeof(ctx->sha_block);
i++) {
ctx->sha_block[i] = 0x0;
}
sctp_sha1_process_a_block(ctx,
(unsigned int *)ctx->sha_block);
/* init last block */
memset(ctx->sha_block, 0, sizeof(ctx->sha_block));
}
/* This is in bits so multiply by 8 */
ctx->running_total *= 8;
ptr = (unsigned int *)&ctx->sha_block[60];
*ptr = htonl(ctx->running_total);
sctp_sha1_process_a_block(ctx, (unsigned int *)ctx->sha_block);
} else {
/*
* easy case, we just pad this message to size - end with 0
* add the magic 0x80 to the next word and then put the
* network byte order size in the last spot and process the
* block.
*/
ctx->sha_block[ctx->how_many_in_block] = '\x80';
for (i = (ctx->how_many_in_block + 1);
i < sizeof(ctx->sha_block);
i++) {
ctx->sha_block[i] = 0x0;
}
/* get last int spot */
ctx->running_total *= 8;
ptr = (unsigned int *)&ctx->sha_block[60];
*ptr = htonl(ctx->running_total);
sctp_sha1_process_a_block(ctx, (unsigned int *)ctx->sha_block);
}
/* transfer the digest back to the user */
digest[3] = (ctx->H0 & 0xff);
digest[2] = ((ctx->H0 >> 8) & 0xff);
digest[1] = ((ctx->H0 >> 16) & 0xff);
digest[0] = ((ctx->H0 >> 24) & 0xff);
digest[7] = (ctx->H1 & 0xff);
digest[6] = ((ctx->H1 >> 8) & 0xff);
digest[5] = ((ctx->H1 >> 16) & 0xff);
digest[4] = ((ctx->H1 >> 24) & 0xff);
digest[11] = (ctx->H2 & 0xff);
digest[10] = ((ctx->H2 >> 8) & 0xff);
digest[9] = ((ctx->H2 >> 16) & 0xff);
digest[8] = ((ctx->H2 >> 24) & 0xff);
digest[15] = (ctx->H3 & 0xff);
digest[14] = ((ctx->H3 >> 8) & 0xff);
digest[13] = ((ctx->H3 >> 16) & 0xff);
digest[12] = ((ctx->H3 >> 24) & 0xff);
digest[19] = (ctx->H4 & 0xff);
digest[18] = ((ctx->H4 >> 8) & 0xff);
digest[17] = ((ctx->H4 >> 16) & 0xff);
digest[16] = ((ctx->H4 >> 24) & 0xff);
}
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#endif
#ifndef __NETINET_SCTP_SHA1_H__
#define __NETINET_SCTP_SHA1_H__
#include <sys/types.h>
#if defined(SCTP_USE_NSS_SHA1)
#include <pk11pub.h>
#elif defined(SCTP_USE_OPENSSL_SHA1)
#include <openssl/sha.h>
#endif
struct sctp_sha1_context {
#if defined(SCTP_USE_NSS_SHA1)
struct PK11Context *pk11_ctx;
#elif defined(SCTP_USE_OPENSSL_SHA1)
SHA_CTX sha_ctx;
#else
unsigned int A;
unsigned int B;
unsigned int C;
unsigned int D;
unsigned int E;
unsigned int H0;
unsigned int H1;
unsigned int H2;
unsigned int H3;
unsigned int H4;
unsigned int words[80];
unsigned int TEMP;
/* block I am collecting to process */
char sha_block[64];
/* collected so far */
int how_many_in_block;
unsigned int running_total;
#endif
};
#if (defined(__APPLE__) && !defined(__Userspace__) && defined(KERNEL))
#ifndef _KERNEL
#define _KERNEL
#endif
#endif
#if defined(_KERNEL) || defined(__Userspace__)
void sctp_sha1_init(struct sctp_sha1_context *);
void sctp_sha1_update(struct sctp_sha1_context *, const unsigned char *, unsigned int);
void sctp_sha1_final(unsigned char *, struct sctp_sha1_context *);
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_sysctl.h 361895 2020-06-07 14:39:20Z tuexen $");
#endif
#ifndef _NETINET_SCTP_SYSCTL_H_
#define _NETINET_SCTP_SYSCTL_H_
#include <netinet/sctp_os.h>
#include <netinet/sctp_constants.h>
struct sctp_sysctl {
uint32_t sctp_sendspace;
uint32_t sctp_recvspace;
uint32_t sctp_auto_asconf;
uint32_t sctp_multiple_asconfs;
uint32_t sctp_ecn_enable;
uint32_t sctp_pr_enable;
uint32_t sctp_auth_enable;
uint32_t sctp_asconf_enable;
uint32_t sctp_reconfig_enable;
uint32_t sctp_nrsack_enable;
uint32_t sctp_pktdrop_enable;
uint32_t sctp_fr_max_burst_default;
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
uint32_t sctp_no_csum_on_loopback;
#endif
uint32_t sctp_peer_chunk_oh;
uint32_t sctp_max_burst_default;
uint32_t sctp_max_chunks_on_queue;
uint32_t sctp_hashtblsize;
uint32_t sctp_pcbtblsize;
uint32_t sctp_min_split_point;
uint32_t sctp_chunkscale;
uint32_t sctp_delayed_sack_time_default;
uint32_t sctp_sack_freq_default;
uint32_t sctp_system_free_resc_limit;
uint32_t sctp_asoc_free_resc_limit;
uint32_t sctp_heartbeat_interval_default;
uint32_t sctp_pmtu_raise_time_default;
uint32_t sctp_shutdown_guard_time_default;
uint32_t sctp_secret_lifetime_default;
uint32_t sctp_rto_max_default;
uint32_t sctp_rto_min_default;
uint32_t sctp_rto_initial_default;
uint32_t sctp_init_rto_max_default;
uint32_t sctp_valid_cookie_life_default;
uint32_t sctp_init_rtx_max_default;
uint32_t sctp_assoc_rtx_max_default;
uint32_t sctp_path_rtx_max_default;
uint32_t sctp_path_pf_threshold;
uint32_t sctp_add_more_threshold;
uint32_t sctp_nr_incoming_streams_default;
uint32_t sctp_nr_outgoing_streams_default;
uint32_t sctp_cmt_on_off;
uint32_t sctp_cmt_use_dac;
uint32_t sctp_use_cwnd_based_maxburst;
uint32_t sctp_nat_friendly;
uint32_t sctp_L2_abc_variable;
uint32_t sctp_mbuf_threshold_count;
uint32_t sctp_do_drain;
uint32_t sctp_hb_maxburst;
uint32_t sctp_abort_if_one_2_one_hits_limit;
uint32_t sctp_min_residual;
uint32_t sctp_max_retran_chunk;
uint32_t sctp_logging_level;
/* JRS - Variable for default congestion control module */
uint32_t sctp_default_cc_module;
/* RS - Variable for default stream scheduling module */
uint32_t sctp_default_ss_module;
uint32_t sctp_default_frag_interleave;
uint32_t sctp_mobility_base;
uint32_t sctp_mobility_fasthandoff;
uint32_t sctp_inits_include_nat_friendly;
uint32_t sctp_rttvar_bw;
uint32_t sctp_rttvar_rtt;
uint32_t sctp_rttvar_eqret;
uint32_t sctp_steady_step;
uint32_t sctp_use_dccc_ecn;
uint32_t sctp_diag_info_code;
#if defined(SCTP_LOCAL_TRACE_BUF)
#if defined(_WIN32) && !defined(__Userspace__)
struct sctp_log *sctp_log;
#else
struct sctp_log sctp_log;
#endif
#endif
uint32_t sctp_udp_tunneling_port;
uint32_t sctp_enable_sack_immediately;
uint32_t sctp_vtag_time_wait;
uint32_t sctp_buffer_splitting;
uint32_t sctp_initial_cwnd;
uint32_t sctp_blackhole;
uint32_t sctp_sendall_limit;
#if defined(SCTP_DEBUG)
uint32_t sctp_debug_on;
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
uint32_t sctp_ignore_vmware_interfaces;
uint32_t sctp_main_timer;
uint32_t sctp_addr_watchdog_limit;
uint32_t sctp_vtag_watchdog_limit;
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
uint32_t sctp_output_unlocked;
#endif
};
/*
* limits for the sysctl variables
*/
/* maxdgram: Maximum outgoing SCTP buffer size */
#define SCTPCTL_MAXDGRAM_DESC "Maximum outgoing SCTP buffer size"
#define SCTPCTL_MAXDGRAM_MIN 0
#define SCTPCTL_MAXDGRAM_MAX 0xFFFFFFFF
#if defined(__Userspace__)
#define SCTPCTL_MAXDGRAM_DEFAULT SB_MAX
#else
#define SCTPCTL_MAXDGRAM_DEFAULT 262144 /* 256k */
#endif
/* recvspace: Maximum incoming SCTP buffer size */
#define SCTPCTL_RECVSPACE_DESC "Maximum incoming SCTP buffer size"
#define SCTPCTL_RECVSPACE_MIN 0
#define SCTPCTL_RECVSPACE_MAX 0xFFFFFFFF
#if defined(__Userspace__)
#define SCTPCTL_RECVSPACE_DEFAULT SB_RAW
#else
#define SCTPCTL_RECVSPACE_DEFAULT 262144 /* 256k */
#endif
/* autoasconf: Enable SCTP Auto-ASCONF */
#define SCTPCTL_AUTOASCONF_DESC "Enable SCTP Auto-ASCONF"
#define SCTPCTL_AUTOASCONF_MIN 0
#define SCTPCTL_AUTOASCONF_MAX 1
#define SCTPCTL_AUTOASCONF_DEFAULT 1
/* autoasconf: Enable SCTP Auto-ASCONF */
#define SCTPCTL_MULTIPLEASCONFS_DESC "Enable SCTP Muliple-ASCONFs"
#define SCTPCTL_MULTIPLEASCONFS_MIN 0
#define SCTPCTL_MULTIPLEASCONFS_MAX 1
#define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
/* ecn_enable: Enable SCTP ECN */
#define SCTPCTL_ECN_ENABLE_DESC "Enable SCTP ECN"
#define SCTPCTL_ECN_ENABLE_MIN 0
#define SCTPCTL_ECN_ENABLE_MAX 1
#define SCTPCTL_ECN_ENABLE_DEFAULT 1
/* pr_enable: Enable PR-SCTP */
#define SCTPCTL_PR_ENABLE_DESC "Enable PR-SCTP"
#define SCTPCTL_PR_ENABLE_MIN 0
#define SCTPCTL_PR_ENABLE_MAX 1
#define SCTPCTL_PR_ENABLE_DEFAULT 1
/* auth_enable: Enable SCTP AUTH function */
#define SCTPCTL_AUTH_ENABLE_DESC "Enable SCTP AUTH function"
#define SCTPCTL_AUTH_ENABLE_MIN 0
#define SCTPCTL_AUTH_ENABLE_MAX 1
#define SCTPCTL_AUTH_ENABLE_DEFAULT 1
/* asconf_enable: Enable SCTP ASCONF */
#define SCTPCTL_ASCONF_ENABLE_DESC "Enable SCTP ASCONF"
#define SCTPCTL_ASCONF_ENABLE_MIN 0
#define SCTPCTL_ASCONF_ENABLE_MAX 1
#define SCTPCTL_ASCONF_ENABLE_DEFAULT 1
/* reconfig_enable: Enable SCTP RE-CONFIG */
#define SCTPCTL_RECONFIG_ENABLE_DESC "Enable SCTP RE-CONFIG"
#define SCTPCTL_RECONFIG_ENABLE_MIN 0
#define SCTPCTL_RECONFIG_ENABLE_MAX 1
#define SCTPCTL_RECONFIG_ENABLE_DEFAULT 1
/* nrsack_enable: Enable NR_SACK */
#define SCTPCTL_NRSACK_ENABLE_DESC "Enable SCTP NR-SACK"
#define SCTPCTL_NRSACK_ENABLE_MIN 0
#define SCTPCTL_NRSACK_ENABLE_MAX 1
#define SCTPCTL_NRSACK_ENABLE_DEFAULT 0
/* pktdrop_enable: Enable SCTP Packet Drop Reports */
#define SCTPCTL_PKTDROP_ENABLE_DESC "Enable SCTP PKTDROP"
#define SCTPCTL_PKTDROP_ENABLE_MIN 0
#define SCTPCTL_PKTDROP_ENABLE_MAX 1
#define SCTPCTL_PKTDROP_ENABLE_DEFAULT 0
/* loopback_nocsum: Enable NO Csum on packets sent on loopback */
#define SCTPCTL_LOOPBACK_NOCSUM_DESC "Enable NO Csum on packets sent on loopback"
#define SCTPCTL_LOOPBACK_NOCSUM_MIN 0
#define SCTPCTL_LOOPBACK_NOCSUM_MAX 1
#define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
/* peer_chkoh: Amount to debit peers rwnd per chunk sent */
#define SCTPCTL_PEER_CHKOH_DESC "Amount to debit peers rwnd per chunk sent"
#define SCTPCTL_PEER_CHKOH_MIN 0
#define SCTPCTL_PEER_CHKOH_MAX 0xFFFFFFFF
#define SCTPCTL_PEER_CHKOH_DEFAULT 256
/* maxburst: Default max burst for sctp endpoints */
#define SCTPCTL_MAXBURST_DESC "Default max burst for sctp endpoints"
#define SCTPCTL_MAXBURST_MIN 0
#define SCTPCTL_MAXBURST_MAX 0xFFFFFFFF
#define SCTPCTL_MAXBURST_DEFAULT SCTP_DEF_MAX_BURST
/* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
#define SCTPCTL_FRMAXBURST_DESC "Default max burst for SCTP endpoints when fast retransmitting"
#define SCTPCTL_FRMAXBURST_MIN 0
#define SCTPCTL_FRMAXBURST_MAX 0xFFFFFFFF
#define SCTPCTL_FRMAXBURST_DEFAULT SCTP_DEF_FRMAX_BURST
/* maxchunks: Default max chunks on queue per asoc */
#define SCTPCTL_MAXCHUNKS_DESC "Default max chunks on queue per asoc"
#define SCTPCTL_MAXCHUNKS_MIN 0
#define SCTPCTL_MAXCHUNKS_MAX 0xFFFFFFFF
#define SCTPCTL_MAXCHUNKS_DEFAULT SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
/* tcbhashsize: Tunable for Hash table sizes */
#define SCTPCTL_TCBHASHSIZE_DESC "Tunable for TCB hash table sizes"
#define SCTPCTL_TCBHASHSIZE_MIN 1
#define SCTPCTL_TCBHASHSIZE_MAX 0xFFFFFFFF
#define SCTPCTL_TCBHASHSIZE_DEFAULT SCTP_TCBHASHSIZE
/* pcbhashsize: Tunable for PCB Hash table sizes */
#define SCTPCTL_PCBHASHSIZE_DESC "Tunable for PCB hash table sizes"
#define SCTPCTL_PCBHASHSIZE_MIN 1
#define SCTPCTL_PCBHASHSIZE_MAX 0xFFFFFFFF
#define SCTPCTL_PCBHASHSIZE_DEFAULT SCTP_PCBHASHSIZE
/* min_split_point: Minimum size when splitting a chunk */
#define SCTPCTL_MIN_SPLIT_POINT_DESC "Minimum size when splitting a chunk"
#define SCTPCTL_MIN_SPLIT_POINT_MIN 0
#define SCTPCTL_MIN_SPLIT_POINT_MAX 0xFFFFFFFF
#define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
/* chunkscale: Tunable for Scaling of number of chunks and messages */
#define SCTPCTL_CHUNKSCALE_DESC "Tunable for scaling of number of chunks and messages"
#define SCTPCTL_CHUNKSCALE_MIN 1
#define SCTPCTL_CHUNKSCALE_MAX 0xFFFFFFFF
#define SCTPCTL_CHUNKSCALE_DEFAULT SCTP_CHUNKQUEUE_SCALE
/* delayed_sack_time: Default delayed SACK timer in ms */
#define SCTPCTL_DELAYED_SACK_TIME_DESC "Default delayed SACK timer in ms"
#define SCTPCTL_DELAYED_SACK_TIME_MIN 0
#define SCTPCTL_DELAYED_SACK_TIME_MAX 0xFFFFFFFF
#define SCTPCTL_DELAYED_SACK_TIME_DEFAULT SCTP_RECV_MSEC
/* sack_freq: Default SACK frequency */
#define SCTPCTL_SACK_FREQ_DESC "Default SACK frequency"
#define SCTPCTL_SACK_FREQ_MIN 0
#define SCTPCTL_SACK_FREQ_MAX 0xFFFFFFFF
#define SCTPCTL_SACK_FREQ_DEFAULT SCTP_DEFAULT_SACK_FREQ
/* sys_resource: Max number of cached resources in the system */
#define SCTPCTL_SYS_RESOURCE_DESC "Max number of cached resources in the system"
#define SCTPCTL_SYS_RESOURCE_MIN 0
#define SCTPCTL_SYS_RESOURCE_MAX 0xFFFFFFFF
#define SCTPCTL_SYS_RESOURCE_DEFAULT SCTP_DEF_SYSTEM_RESC_LIMIT
/* asoc_resource: Max number of cached resources in an asoc */
#define SCTPCTL_ASOC_RESOURCE_DESC "Max number of cached resources in an asoc"
#define SCTPCTL_ASOC_RESOURCE_MIN 0
#define SCTPCTL_ASOC_RESOURCE_MAX 0xFFFFFFFF
#define SCTPCTL_ASOC_RESOURCE_DEFAULT SCTP_DEF_ASOC_RESC_LIMIT
/* heartbeat_interval: Default heartbeat interval in ms */
#define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
#define SCTPCTL_HEARTBEAT_INTERVAL_MIN 0
#define SCTPCTL_HEARTBEAT_INTERVAL_MAX 0xFFFFFFFF
#define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT SCTP_HB_DEFAULT_MSEC
/* pmtu_raise_time: Default PMTU raise timer in seconds */
#define SCTPCTL_PMTU_RAISE_TIME_DESC "Default PMTU raise timer in seconds"
#define SCTPCTL_PMTU_RAISE_TIME_MIN 0
#define SCTPCTL_PMTU_RAISE_TIME_MAX 0xFFFFFFFF
#define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
/* shutdown_guard_time: Default shutdown guard timer in seconds */
#define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
#define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN 0
#define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX 0xFFFFFFFF
#define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT 0
/* secret_lifetime: Default secret lifetime in seconds */
#define SCTPCTL_SECRET_LIFETIME_DESC "Default secret lifetime in seconds"
#define SCTPCTL_SECRET_LIFETIME_MIN 0
#define SCTPCTL_SECRET_LIFETIME_MAX 0xFFFFFFFF
#define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
/* rto_max: Default maximum retransmission timeout in ms */
#define SCTPCTL_RTO_MAX_DESC "Default maximum retransmission timeout in ms"
#define SCTPCTL_RTO_MAX_MIN 0
#define SCTPCTL_RTO_MAX_MAX 0xFFFFFFFF
#define SCTPCTL_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
/* rto_min: Default minimum retransmission timeout in ms */
#define SCTPCTL_RTO_MIN_DESC "Default minimum retransmission timeout in ms"
#define SCTPCTL_RTO_MIN_MIN 0
#define SCTPCTL_RTO_MIN_MAX 0xFFFFFFFF
#define SCTPCTL_RTO_MIN_DEFAULT SCTP_RTO_LOWER_BOUND
/* rto_initial: Default initial retransmission timeout in ms */
#define SCTPCTL_RTO_INITIAL_DESC "Default initial retransmission timeout in ms"
#define SCTPCTL_RTO_INITIAL_MIN 0
#define SCTPCTL_RTO_INITIAL_MAX 0xFFFFFFFF
#define SCTPCTL_RTO_INITIAL_DEFAULT SCTP_RTO_INITIAL
/* init_rto_max: Default maximum retransmission timeout during association setup in ms */
#define SCTPCTL_INIT_RTO_MAX_DESC "Default maximum retransmission timeout during association setup in ms"
#define SCTPCTL_INIT_RTO_MAX_MIN 0
#define SCTPCTL_INIT_RTO_MAX_MAX 0xFFFFFFFF
#define SCTPCTL_INIT_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
/* valid_cookie_life: Default cookie lifetime in sec */
#define SCTPCTL_VALID_COOKIE_LIFE_DESC "Default cookie lifetime in seconds"
#define SCTPCTL_VALID_COOKIE_LIFE_MIN 0
#define SCTPCTL_VALID_COOKIE_LIFE_MAX 0xFFFFFFFF
#define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT SCTP_DEFAULT_COOKIE_LIFE
/* init_rtx_max: Default maximum number of retransmission for INIT chunks */
#define SCTPCTL_INIT_RTX_MAX_DESC "Default maximum number of retransmissions for INIT chunks"
#define SCTPCTL_INIT_RTX_MAX_MIN 0
#define SCTPCTL_INIT_RTX_MAX_MAX 0xFFFFFFFF
#define SCTPCTL_INIT_RTX_MAX_DEFAULT SCTP_DEF_MAX_INIT
/* assoc_rtx_max: Default maximum number of retransmissions per association */
#define SCTPCTL_ASSOC_RTX_MAX_DESC "Default maximum number of retransmissions per association"
#define SCTPCTL_ASSOC_RTX_MAX_MIN 0
#define SCTPCTL_ASSOC_RTX_MAX_MAX 0xFFFFFFFF
#define SCTPCTL_ASSOC_RTX_MAX_DEFAULT SCTP_DEF_MAX_SEND
/* path_rtx_max: Default maximum of retransmissions per path */
#define SCTPCTL_PATH_RTX_MAX_DESC "Default maximum of retransmissions per path"
#define SCTPCTL_PATH_RTX_MAX_MIN 0
#define SCTPCTL_PATH_RTX_MAX_MAX 0xFFFFFFFF
#define SCTPCTL_PATH_RTX_MAX_DEFAULT SCTP_DEF_MAX_PATH_RTX
/* path_pf_threshold: threshold for considering the path potentially failed */
#define SCTPCTL_PATH_PF_THRESHOLD_DESC "Default potentially failed threshold"
#define SCTPCTL_PATH_PF_THRESHOLD_MIN 0
#define SCTPCTL_PATH_PF_THRESHOLD_MAX 0xFFFF
#define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT SCTPCTL_PATH_PF_THRESHOLD_MAX
/* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
#define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
#define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN 0
#define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX 0xFFFFFFFF
#define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
/* incoming_streams: Default number of incoming streams */
#define SCTPCTL_INCOMING_STREAMS_DESC "Default number of incoming streams"
#define SCTPCTL_INCOMING_STREAMS_MIN 1
#define SCTPCTL_INCOMING_STREAMS_MAX 65535
#define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
/* outgoing_streams: Default number of outgoing streams */
#define SCTPCTL_OUTGOING_STREAMS_DESC "Default number of outgoing streams"
#define SCTPCTL_OUTGOING_STREAMS_MIN 1
#define SCTPCTL_OUTGOING_STREAMS_MAX 65535
#define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
/* cmt_on_off: CMT on/off flag */
#define SCTPCTL_CMT_ON_OFF_DESC "CMT settings"
#define SCTPCTL_CMT_ON_OFF_MIN SCTP_CMT_OFF
#define SCTPCTL_CMT_ON_OFF_MAX SCTP_CMT_MAX
#define SCTPCTL_CMT_ON_OFF_DEFAULT SCTP_CMT_OFF
/* cmt_use_dac: CMT DAC on/off flag */
#define SCTPCTL_CMT_USE_DAC_DESC "CMT DAC on/off flag"
#define SCTPCTL_CMT_USE_DAC_MIN 0
#define SCTPCTL_CMT_USE_DAC_MAX 1
#define SCTPCTL_CMT_USE_DAC_DEFAULT 0
/* cwnd_maxburst: Use a CWND adjusting to implement maxburst */
#define SCTPCTL_CWND_MAXBURST_DESC "Adjust congestion control window to limit maximum burst when sending"
#define SCTPCTL_CWND_MAXBURST_MIN 0
#define SCTPCTL_CWND_MAXBURST_MAX 1
#define SCTPCTL_CWND_MAXBURST_DEFAULT 1
/* nat_friendly: SCTP NAT friendly operation */
#define SCTPCTL_NAT_FRIENDLY_DESC "SCTP NAT friendly operation"
#define SCTPCTL_NAT_FRIENDLY_MIN 0
#define SCTPCTL_NAT_FRIENDLY_MAX 1
#define SCTPCTL_NAT_FRIENDLY_DEFAULT 1
/* abc_l_var: SCTP ABC max increase per SACK (L) */
#define SCTPCTL_ABC_L_VAR_DESC "SCTP ABC max increase per SACK (L)"
#define SCTPCTL_ABC_L_VAR_MIN 0
#define SCTPCTL_ABC_L_VAR_MAX 0xFFFFFFFF
#define SCTPCTL_ABC_L_VAR_DEFAULT 2
/* max_chained_mbufs: Default max number of small mbufs on a chain */
#define SCTPCTL_MAX_CHAINED_MBUFS_DESC "Default max number of small mbufs on a chain"
#define SCTPCTL_MAX_CHAINED_MBUFS_MIN 0
#define SCTPCTL_MAX_CHAINED_MBUFS_MAX 0xFFFFFFFF
#define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT SCTP_DEFAULT_MBUFS_IN_CHAIN
/* do_sctp_drain: Should SCTP respond to the drain calls */
#define SCTPCTL_DO_SCTP_DRAIN_DESC "Should SCTP respond to the drain calls"
#define SCTPCTL_DO_SCTP_DRAIN_MIN 0
#define SCTPCTL_DO_SCTP_DRAIN_MAX 1
#define SCTPCTL_DO_SCTP_DRAIN_DEFAULT 1
/* hb_max_burst: Confirmation Heartbeat max burst? */
#define SCTPCTL_HB_MAX_BURST_DESC "Confirmation Heartbeat max burst"
#define SCTPCTL_HB_MAX_BURST_MIN 1
#define SCTPCTL_HB_MAX_BURST_MAX 0xFFFFFFFF
#define SCTPCTL_HB_MAX_BURST_DEFAULT SCTP_DEF_HBMAX_BURST
/* abort_at_limit: When one-2-one hits qlimit abort */
#define SCTPCTL_ABORT_AT_LIMIT_DESC "Abort when one-to-one hits qlimit"
#define SCTPCTL_ABORT_AT_LIMIT_MIN 0
#define SCTPCTL_ABORT_AT_LIMIT_MAX 1
#define SCTPCTL_ABORT_AT_LIMIT_DEFAULT 0
/* min_residual: min residual in a data fragment leftover */
#define SCTPCTL_MIN_RESIDUAL_DESC "Minimum residual data chunk in second part of split"
#define SCTPCTL_MIN_RESIDUAL_MIN 20
#define SCTPCTL_MIN_RESIDUAL_MAX 65535
#define SCTPCTL_MIN_RESIDUAL_DEFAULT 1452
/* max_retran_chunk: max chunk retransmissions */
#define SCTPCTL_MAX_RETRAN_CHUNK_DESC "Maximum times an unlucky chunk can be retransmitted before assoc abort"
#define SCTPCTL_MAX_RETRAN_CHUNK_MIN 0
#define SCTPCTL_MAX_RETRAN_CHUNK_MAX 65535
#define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT 30
/* sctp_logging: This gives us logging when the options are enabled */
#define SCTPCTL_LOGGING_LEVEL_DESC "Ltrace/KTR trace logging level"
#define SCTPCTL_LOGGING_LEVEL_MIN 0
#define SCTPCTL_LOGGING_LEVEL_MAX 0xffffffff
#define SCTPCTL_LOGGING_LEVEL_DEFAULT 0
/* JRS - default congestion control module sysctl */
#define SCTPCTL_DEFAULT_CC_MODULE_DESC "Default congestion control module"
#define SCTPCTL_DEFAULT_CC_MODULE_MIN 0
#define SCTPCTL_DEFAULT_CC_MODULE_MAX 2
#define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT 0
/* RS - default stream scheduling module sysctl */
#define SCTPCTL_DEFAULT_SS_MODULE_DESC "Default stream scheduling module"
#define SCTPCTL_DEFAULT_SS_MODULE_MIN 0
#define SCTPCTL_DEFAULT_SS_MODULE_MAX 5
#define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT 0
/* RRS - default fragment interleave */
#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC "Default fragment interleave level"
#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN 0
#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX 2
#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
/* mobility_base: Enable SCTP mobility support */
#define SCTPCTL_MOBILITY_BASE_DESC "Enable SCTP base mobility"
#define SCTPCTL_MOBILITY_BASE_MIN 0
#define SCTPCTL_MOBILITY_BASE_MAX 1
#define SCTPCTL_MOBILITY_BASE_DEFAULT 0
/* mobility_fasthandoff: Enable SCTP fast handoff support */
#define SCTPCTL_MOBILITY_FASTHANDOFF_DESC "Enable SCTP fast handoff"
#define SCTPCTL_MOBILITY_FASTHANDOFF_MIN 0
#define SCTPCTL_MOBILITY_FASTHANDOFF_MAX 1
#define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT 0
/* Enable SCTP/UDP tunneling port */
#define SCTPCTL_UDP_TUNNELING_PORT_DESC "Set the SCTP/UDP tunneling port"
#define SCTPCTL_UDP_TUNNELING_PORT_MIN 0
#define SCTPCTL_UDP_TUNNELING_PORT_MAX 65535
#if defined(__FreeBSD__) && !defined(__Userspace__)
#define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT 0
#else
#define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT SCTP_OVER_UDP_TUNNELING_PORT
#endif
/* Enable sending of the SACK-IMMEDIATELY bit */
#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC "Enable sending of the SACK-IMMEDIATELY-bit"
#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN 0
#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX 1
#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX
/* Enable sending of the NAT-FRIENDLY message */
#define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs"
#define SCTPCTL_NAT_FRIENDLY_INITS_MIN 0
#define SCTPCTL_NAT_FRIENDLY_INITS_MAX 1
#define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT SCTPCTL_NAT_FRIENDLY_INITS_MIN
/* Vtag time wait in seconds */
#define SCTPCTL_TIME_WAIT_DESC "Vtag time wait time in seconds, 0 disables it"
#define SCTPCTL_TIME_WAIT_MIN 0
#define SCTPCTL_TIME_WAIT_MAX 0xffffffff
#define SCTPCTL_TIME_WAIT_DEFAULT SCTP_TIME_WAIT
/* Enable Send/Receive buffer splitting */
#define SCTPCTL_BUFFER_SPLITTING_DESC "Enable send/receive buffer splitting"
#define SCTPCTL_BUFFER_SPLITTING_MIN 0
#define SCTPCTL_BUFFER_SPLITTING_MAX 0x3
#define SCTPCTL_BUFFER_SPLITTING_DEFAULT SCTPCTL_BUFFER_SPLITTING_MIN
/* Initial congestion window in MTUs */
#define SCTPCTL_INITIAL_CWND_DESC "Defines the initial congestion window size in MTUs"
#define SCTPCTL_INITIAL_CWND_MIN 0
#define SCTPCTL_INITIAL_CWND_MAX 0xffffffff
#define SCTPCTL_INITIAL_CWND_DEFAULT 3
/* rttvar smooth avg for bw calc */
#define SCTPCTL_RTTVAR_BW_DESC "Shift amount DCCC uses for bw smoothing on rtt calc"
#define SCTPCTL_RTTVAR_BW_MIN 0
#define SCTPCTL_RTTVAR_BW_MAX 32
#define SCTPCTL_RTTVAR_BW_DEFAULT 4
/* rttvar smooth avg for bw calc */
#define SCTPCTL_RTTVAR_RTT_DESC "Shift amount DCCC uses for rtt smoothing on rtt calc"
#define SCTPCTL_RTTVAR_RTT_MIN 0
#define SCTPCTL_RTTVAR_RTT_MAX 32
#define SCTPCTL_RTTVAR_RTT_DEFAULT 5
#define SCTPCTL_RTTVAR_EQRET_DESC "Whether DCCC increases cwnd when the rtt and bw are unchanged"
#define SCTPCTL_RTTVAR_EQRET_MIN 0
#define SCTPCTL_RTTVAR_EQRET_MAX 1
#define SCTPCTL_RTTVAR_EQRET_DEFAULT 0
#define SCTPCTL_RTTVAR_STEADYS_DESC "Number of identical bw measurements DCCC takes to try step down of cwnd"
#define SCTPCTL_RTTVAR_STEADYS_MIN 0
#define SCTPCTL_RTTVAR_STEADYS_MAX 0xFFFF
#define SCTPCTL_RTTVAR_STEADYS_DEFAULT 20 /* 0 means disable feature */
#define SCTPCTL_RTTVAR_DCCCECN_DESC "Enable ECN for DCCC."
#define SCTPCTL_RTTVAR_DCCCECN_MIN 0
#define SCTPCTL_RTTVAR_DCCCECN_MAX 1
#define SCTPCTL_RTTVAR_DCCCECN_DEFAULT 1 /* 0 means disable feature */
#define SCTPCTL_BLACKHOLE_DESC "Enable SCTP blackholing, see blackhole(4) for more details"
#define SCTPCTL_BLACKHOLE_MIN 0
#define SCTPCTL_BLACKHOLE_MAX 2
#define SCTPCTL_BLACKHOLE_DEFAULT SCTPCTL_BLACKHOLE_MIN
/* sendall_limit: Maximum message with SCTP_SENDALL */
#define SCTPCTL_SENDALL_LIMIT_DESC "Maximum size of a message send with SCTP_SENDALL"
#define SCTPCTL_SENDALL_LIMIT_MIN 0
#define SCTPCTL_SENDALL_LIMIT_MAX 0xFFFFFFFF
#define SCTPCTL_SENDALL_LIMIT_DEFAULT 1432
#define SCTPCTL_DIAG_INFO_CODE_DESC "Diagnostic information error cause code"
#define SCTPCTL_DIAG_INFO_CODE_MIN 0
#define SCTPCTL_DIAG_INFO_CODE_MAX 65535
#define SCTPCTL_DIAG_INFO_CODE_DEFAULT 0
#if defined(SCTP_DEBUG)
/* debug: Configure debug output */
#define SCTPCTL_DEBUG_DESC "Configure debug output"
#define SCTPCTL_DEBUG_MIN 0
#define SCTPCTL_DEBUG_MAX 0xFFFFFFFF
#define SCTPCTL_DEBUG_DEFAULT 0
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
#define SCTPCTL_MAIN_TIMER_DESC "Main timer interval in ms"
#define SCTPCTL_MAIN_TIMER_MIN 1
#define SCTPCTL_MAIN_TIMER_MAX 0xFFFFFFFF
#define SCTPCTL_MAIN_TIMER_DEFAULT 10
#define SCTPCTL_IGNORE_VMWARE_INTERFACES_DESC "Ignore VMware Interfaces"
#define SCTPCTL_IGNORE_VMWARE_INTERFACES_MIN 0
#define SCTPCTL_IGNORE_VMWARE_INTERFACES_MAX 1
#define SCTPCTL_IGNORE_VMWARE_INTERFACES_DEFAULT SCTPCTL_IGNORE_VMWARE_INTERFACES_MAX
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
#define SCTPCTL_OUTPUT_UNLOCKED_DESC "Unlock socket when sending packets down to IP"
#define SCTPCTL_OUTPUT_UNLOCKED_MIN 0
#define SCTPCTL_OUTPUT_UNLOCKED_MAX 1
#define SCTPCTL_OUTPUT_UNLOCKED_DEFAULT SCTPCTL_OUTPUT_UNLOCKED_MIN
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
#define SCTPCTL_ADDR_WATCHDOG_LIMIT_DESC "Address watchdog limit"
#define SCTPCTL_ADDR_WATCHDOG_LIMIT_MIN 0
#define SCTPCTL_ADDR_WATCHDOG_LIMIT_MAX 0xFFFFFFFF
#define SCTPCTL_ADDR_WATCHDOG_LIMIT_DEFAULT SCTPCTL_ADDR_WATCHDOG_LIMIT_MIN
#define SCTPCTL_VTAG_WATCHDOG_LIMIT_DESC "VTag watchdog limit"
#define SCTPCTL_VTAG_WATCHDOG_LIMIT_MIN 0
#define SCTPCTL_VTAG_WATCHDOG_LIMIT_MAX 0xFFFFFFFF
#define SCTPCTL_VTAG_WATCHDOG_LIMIT_DEFAULT SCTPCTL_VTAG_WATCHDOG_LIMIT_MIN
#endif
#if defined(_KERNEL) || defined(__Userspace__)
#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Userspace__)
#if defined(SYSCTL_DECL)
SYSCTL_DECL(_net_inet_sctp);
#endif
#endif
void sctp_init_sysctls(void);
#if defined(_WIN32) && !defined(__Userspace__)
void sctp_finish_sysctls(void);
#endif
#endif /* _KERNEL */
#endif /* __sctp_sysctl_h__ */

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_timer.h 359195 2020-03-21 16:12:19Z tuexen $");
#endif
#ifndef _NETINET_SCTP_TIMER_H_
#define _NETINET_SCTP_TIMER_H_
#if defined(_KERNEL) || defined(__Userspace__)
#define SCTP_RTT_SHIFT 3
#define SCTP_RTT_VAR_SHIFT 2
struct sctp_nets *
sctp_find_alternate_net(struct sctp_tcb *, struct sctp_nets *, int);
int
sctp_t3rxt_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_t1init_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_shutdown_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_heartbeat_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_cookie_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
void
sctp_pathmtu_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_shutdownack_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
int
sctp_strreset_timer(struct sctp_inpcb *, struct sctp_tcb *);
int
sctp_asconf_timer(struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
void
sctp_delete_prim_timer(struct sctp_inpcb *, struct sctp_tcb *);
void
sctp_autoclose_timer(struct sctp_inpcb *, struct sctp_tcb *);
void sctp_audit_retranmission_queue(struct sctp_association *);
void sctp_iterator_timer(struct sctp_iterator *it);
#if defined(__APPLE__) && !defined(__Userspace__)
#if defined(APPLE_LEOPARD) || defined(APPLE_SNOWLEOPARD) || defined(APPLE_LION) || defined(APPLE_MOUNTAINLION)
void sctp_slowtimo(void);
#else
void sctp_gc(struct inpcbinfo *);
#endif
#endif
#endif
#endif

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/*-
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifdef _WIN32
#include <netinet/sctp_pcb.h>
#include <sys/timeb.h>
#include <iphlpapi.h>
#if !defined(__MINGW32__)
#pragma comment(lib, "IPHLPAPI.lib")
#endif
#endif
#include <netinet/sctp_os_userspace.h>
#if defined(__FreeBSD__)
#include <pthread_np.h>
#endif
#if defined(__linux__)
#include <sys/prctl.h>
#endif
#if defined(_WIN32)
/* Adapter to translate Unix thread start routines to Windows thread start
* routines.
*/
#if defined(__MINGW32__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
static DWORD WINAPI
sctp_create_thread_adapter(void *arg) {
start_routine_t start_routine = (start_routine_t)arg;
return start_routine(NULL) == NULL;
}
int
sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine)
{
*thread = CreateThread(NULL, 0, sctp_create_thread_adapter,
(void *)start_routine, 0, NULL);
if (*thread == NULL)
return GetLastError();
return 0;
}
#if defined(__MINGW32__)
#pragma GCC diagnostic pop
#endif
#else
int
sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine)
{
return pthread_create(thread, NULL, start_routine, NULL);
}
#endif
void
sctp_userspace_set_threadname(const char *name)
{
#if defined(__APPLE__)
pthread_setname_np(name);
#endif
#if defined(__linux__)
prctl(PR_SET_NAME, name);
#endif
#if defined(__FreeBSD__)
pthread_set_name_np(pthread_self(), name);
#endif
}
#if !defined(_WIN32) && !defined(__native_client__)
int
sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af)
{
struct ifreq ifr;
int fd;
memset(&ifr, 0, sizeof(struct ifreq));
if (if_indextoname(if_index, ifr.ifr_name) != NULL) {
/* TODO can I use the raw socket here and not have to open a new one with each query? */
if ((fd = socket(af, SOCK_DGRAM, 0)) < 0)
return (0);
if (ioctl(fd, SIOCGIFMTU, &ifr) < 0) {
close(fd);
return (0);
}
close(fd);
return ifr.ifr_mtu;
} else {
return (0);
}
}
#endif
#if defined(__native_client__)
int
sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af)
{
return 1280;
}
#endif
#if defined(__APPLE__) || defined(__DragonFly__) || defined(__linux__) || defined(__native_client__) || defined(__NetBSD__) || defined(_WIN32) || defined(__Fuchsia__)
int
timingsafe_bcmp(const void *b1, const void *b2, size_t n)
{
const unsigned char *p1 = b1, *p2 = b2;
int ret = 0;
for (; n > 0; n--)
ret |= *p1++ ^ *p2++;
return (ret != 0);
}
#endif
#ifdef _WIN32
int
sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af)
{
PIP_ADAPTER_ADDRESSES pAdapterAddrs, pAdapt;
DWORD AdapterAddrsSize, Err;
int ret;
ret = 0;
AdapterAddrsSize = 0;
pAdapterAddrs = NULL;
if ((Err = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &AdapterAddrsSize)) != 0) {
if ((Err != ERROR_BUFFER_OVERFLOW) && (Err != ERROR_INSUFFICIENT_BUFFER)) {
SCTPDBG(SCTP_DEBUG_USR, "GetAdaptersAddresses() sizing failed with error code %d, AdapterAddrsSize = %d\n", Err, AdapterAddrsSize);
ret = -1;
goto cleanup;
}
}
if ((pAdapterAddrs = (PIP_ADAPTER_ADDRESSES) GlobalAlloc(GPTR, AdapterAddrsSize)) == NULL) {
SCTPDBG(SCTP_DEBUG_USR, "Memory allocation error!\n");
ret = -1;
goto cleanup;
}
if ((Err = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAdapterAddrs, &AdapterAddrsSize)) != ERROR_SUCCESS) {
SCTPDBG(SCTP_DEBUG_USR, "GetAdaptersAddresses() failed with error code %d\n", Err);
ret = -1;
goto cleanup;
}
for (pAdapt = pAdapterAddrs; pAdapt; pAdapt = pAdapt->Next) {
if (pAdapt->IfIndex == if_index) {
ret = pAdapt->Mtu;
break;
}
}
cleanup:
if (pAdapterAddrs != NULL) {
GlobalFree(pAdapterAddrs);
}
return (ret);
}
void
getwintimeofday(struct timeval *tv)
{
FILETIME filetime;
ULARGE_INTEGER ularge;
GetSystemTimeAsFileTime(&filetime);
ularge.LowPart = filetime.dwLowDateTime;
ularge.HighPart = filetime.dwHighDateTime;
/* Change base from Jan 1 1601 00:00:00 to Jan 1 1970 00:00:00 */
#if defined(__MINGW32__)
ularge.QuadPart -= 116444736000000000ULL;
#else
ularge.QuadPart -= 116444736000000000UI64;
#endif
/*
* ularge.QuadPart is now the number of 100-nanosecond intervals
* since Jan 1 1970 00:00:00.
*/
#if defined(__MINGW32__)
tv->tv_sec = (long)(ularge.QuadPart / 10000000ULL);
tv->tv_usec = (long)((ularge.QuadPart % 10000000ULL) / 10ULL);
#else
tv->tv_sec = (long)(ularge.QuadPart / 10000000UI64);
tv->tv_usec = (long)((ularge.QuadPart % 10000000UI64) / 10UI64);
#endif
}
int
win_if_nametoindex(const char *ifname)
{
IP_ADAPTER_ADDRESSES *addresses, *addr;
ULONG status, size;
int index = 0;
if (!ifname) {
return 0;
}
size = 0;
status = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &size);
if (status != ERROR_BUFFER_OVERFLOW) {
return 0;
}
addresses = malloc(size);
status = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, addresses, &size);
if (status == ERROR_SUCCESS) {
for (addr = addresses; addr; addr = addr->Next) {
if (addr->AdapterName && !strcmp(ifname, addr->AdapterName)) {
index = addr->IfIndex;
break;
}
}
}
free(addresses);
return index;
}
#if WINVER < 0x0600
/* These functions are written based on the code at
* http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
* Therefore, for the rest of the file the following applies:
*
*
* Copyright and Licensing Information for ACE(TM), TAO(TM), CIAO(TM),
* DAnCE(TM), and CoSMIC(TM)
*
* [1]ACE(TM), [2]TAO(TM), [3]CIAO(TM), DAnCE(TM), and [4]CoSMIC(TM)
* (henceforth referred to as "DOC software") are copyrighted by
* [5]Douglas C. Schmidt and his [6]research group at [7]Washington
* University, [8]University of California, Irvine, and [9]Vanderbilt
* University, Copyright (c) 1993-2012, all rights reserved. Since DOC
* software is open-source, freely available software, you are free to
* use, modify, copy, and distribute--perpetually and irrevocably--the
* DOC software source code and object code produced from the source, as
* well as copy and distribute modified versions of this software. You
* must, however, include this copyright statement along with any code
* built using DOC software that you release. No copyright statement
* needs to be provided if you just ship binary executables of your
* software products.
*
* You can use DOC software in commercial and/or binary software releases
* and are under no obligation to redistribute any of your source code
* that is built using DOC software. Note, however, that you may not
* misappropriate the DOC software code, such as copyrighting it yourself
* or claiming authorship of the DOC software code, in a way that will
* prevent DOC software from being distributed freely using an
* open-source development model. You needn't inform anyone that you're
* using DOC software in your software, though we encourage you to let
* [10]us know so we can promote your project in the [11]DOC software
* success stories.
*
* The [12]ACE, [13]TAO, [14]CIAO, [15]DAnCE, and [16]CoSMIC web sites
* are maintained by the [17]DOC Group at the [18]Institute for Software
* Integrated Systems (ISIS) and the [19]Center for Distributed Object
* Computing of Washington University, St. Louis for the development of
* open-source software as part of the open-source software community.
* Submissions are provided by the submitter ``as is'' with no warranties
* whatsoever, including any warranty of merchantability, noninfringement
* of third party intellectual property, or fitness for any particular
* purpose. In no event shall the submitter be liable for any direct,
* indirect, special, exemplary, punitive, or consequential damages,
* including without limitation, lost profits, even if advised of the
* possibility of such damages. Likewise, DOC software is provided as is
* with no warranties of any kind, including the warranties of design,
* merchantability, and fitness for a particular purpose,
* noninfringement, or arising from a course of dealing, usage or trade
* practice. Washington University, UC Irvine, Vanderbilt University,
* their employees, and students shall have no liability with respect to
* the infringement of copyrights, trade secrets or any patents by DOC
* software or any part thereof. Moreover, in no event will Washington
* University, UC Irvine, or Vanderbilt University, their employees, or
* students be liable for any lost revenue or profits or other special,
* indirect and consequential damages.
*
* DOC software is provided with no support and without any obligation on
* the part of Washington University, UC Irvine, Vanderbilt University,
* their employees, or students to assist in its use, correction,
* modification, or enhancement. A [20]number of companies around the
* world provide commercial support for DOC software, however. DOC
* software is Y2K-compliant, as long as the underlying OS platform is
* Y2K-compliant. Likewise, DOC software is compliant with the new US
* daylight savings rule passed by Congress as "The Energy Policy Act of
* 2005," which established new daylight savings times (DST) rules for
* the United States that expand DST as of March 2007. Since DOC software
* obtains time/date and calendaring information from operating systems
* users will not be affected by the new DST rules as long as they
* upgrade their operating systems accordingly.
*
* The names ACE(TM), TAO(TM), CIAO(TM), DAnCE(TM), CoSMIC(TM),
* Washington University, UC Irvine, and Vanderbilt University, may not
* be used to endorse or promote products or services derived from this
* source without express written permission from Washington University,
* UC Irvine, or Vanderbilt University. This license grants no permission
* to call products or services derived from this source ACE(TM),
* TAO(TM), CIAO(TM), DAnCE(TM), or CoSMIC(TM), nor does it grant
* permission for the name Washington University, UC Irvine, or
* Vanderbilt University to appear in their names.
*
* If you have any suggestions, additions, comments, or questions, please
* let [21]me know.
*
* [22]Douglas C. Schmidt
*
* References
*
* 1. http://www.cs.wustl.edu/~schmidt/ACE.html
* 2. http://www.cs.wustl.edu/~schmidt/TAO.html
* 3. http://www.dre.vanderbilt.edu/CIAO/
* 4. http://www.dre.vanderbilt.edu/cosmic/
* 5. http://www.dre.vanderbilt.edu/~schmidt/
* 6. http://www.cs.wustl.edu/~schmidt/ACE-members.html
* 7. http://www.wustl.edu/
* 8. http://www.uci.edu/
* 9. http://www.vanderbilt.edu/
* 10. mailto:doc_group@cs.wustl.edu
* 11. http://www.cs.wustl.edu/~schmidt/ACE-users.html
* 12. http://www.cs.wustl.edu/~schmidt/ACE.html
* 13. http://www.cs.wustl.edu/~schmidt/TAO.html
* 14. http://www.dre.vanderbilt.edu/CIAO/
* 15. http://www.dre.vanderbilt.edu/~schmidt/DOC_ROOT/DAnCE/
* 16. http://www.dre.vanderbilt.edu/cosmic/
* 17. http://www.dre.vanderbilt.edu/
* 18. http://www.isis.vanderbilt.edu/
* 19. http://www.cs.wustl.edu/~schmidt/doc-center.html
* 20. http://www.cs.wustl.edu/~schmidt/commercial-support.html
* 21. mailto:d.schmidt@vanderbilt.edu
* 22. http://www.dre.vanderbilt.edu/~schmidt/
* 23. http://www.cs.wustl.edu/ACE.html
*/
void
InitializeXPConditionVariable(userland_cond_t *cv)
{
cv->waiters_count = 0;
InitializeCriticalSection(&(cv->waiters_count_lock));
cv->events_[C_SIGNAL] = CreateEvent (NULL, FALSE, FALSE, NULL);
cv->events_[C_BROADCAST] = CreateEvent (NULL, TRUE, FALSE, NULL);
}
void
DeleteXPConditionVariable(userland_cond_t *cv)
{
CloseHandle(cv->events_[C_BROADCAST]);
CloseHandle(cv->events_[C_SIGNAL]);
DeleteCriticalSection(&(cv->waiters_count_lock));
}
int
SleepXPConditionVariable(userland_cond_t *cv, userland_mutex_t *mtx)
{
int result, last_waiter;
EnterCriticalSection(&cv->waiters_count_lock);
cv->waiters_count++;
LeaveCriticalSection(&cv->waiters_count_lock);
LeaveCriticalSection (mtx);
result = WaitForMultipleObjects(2, cv->events_, FALSE, INFINITE);
if (result==-1) {
result = GetLastError();
}
EnterCriticalSection(&cv->waiters_count_lock);
cv->waiters_count--;
last_waiter = result == (C_SIGNAL + C_BROADCAST && (cv->waiters_count == 0));
LeaveCriticalSection(&cv->waiters_count_lock);
if (last_waiter)
ResetEvent(cv->events_[C_BROADCAST]);
EnterCriticalSection (mtx);
return result;
}
void
WakeAllXPConditionVariable(userland_cond_t *cv)
{
int have_waiters;
EnterCriticalSection(&cv->waiters_count_lock);
have_waiters = cv->waiters_count > 0;
LeaveCriticalSection(&cv->waiters_count_lock);
if (have_waiters)
SetEvent (cv->events_[C_BROADCAST]);
}
#endif
#endif

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_var.h 363323 2020-07-19 12:34:19Z tuexen $");
#endif
#ifndef _NETINET_SCTP_VAR_H_
#define _NETINET_SCTP_VAR_H_
#include <netinet/sctp_uio.h>
#if defined(_KERNEL) || defined(__Userspace__)
#if !defined(__Userspace__)
extern struct pr_usrreqs sctp_usrreqs;
#endif
#define sctp_feature_on(inp, feature) (inp->sctp_features |= feature)
#define sctp_feature_off(inp, feature) (inp->sctp_features &= ~feature)
#define sctp_is_feature_on(inp, feature) ((inp->sctp_features & feature) == feature)
#define sctp_is_feature_off(inp, feature) ((inp->sctp_features & feature) == 0)
#define sctp_stcb_feature_on(inp, stcb, feature) {\
if (stcb) { \
stcb->asoc.sctp_features |= feature; \
} else if (inp) { \
inp->sctp_features |= feature; \
} \
}
#define sctp_stcb_feature_off(inp, stcb, feature) {\
if (stcb) { \
stcb->asoc.sctp_features &= ~feature; \
} else if (inp) { \
inp->sctp_features &= ~feature; \
} \
}
#define sctp_stcb_is_feature_on(inp, stcb, feature) \
(((stcb != NULL) && \
((stcb->asoc.sctp_features & feature) == feature)) || \
((stcb == NULL) && (inp != NULL) && \
((inp->sctp_features & feature) == feature)))
#define sctp_stcb_is_feature_off(inp, stcb, feature) \
(((stcb != NULL) && \
((stcb->asoc.sctp_features & feature) == 0)) || \
((stcb == NULL) && (inp != NULL) && \
((inp->sctp_features & feature) == 0)) || \
((stcb == NULL) && (inp == NULL)))
/* managing mobility_feature in inpcb (by micchie) */
#define sctp_mobility_feature_on(inp, feature) (inp->sctp_mobility_features |= feature)
#define sctp_mobility_feature_off(inp, feature) (inp->sctp_mobility_features &= ~feature)
#define sctp_is_mobility_feature_on(inp, feature) (inp->sctp_mobility_features & feature)
#define sctp_is_mobility_feature_off(inp, feature) ((inp->sctp_mobility_features & feature) == 0)
#define sctp_maxspace(sb) (max((sb)->sb_hiwat,SCTP_MINIMAL_RWND))
#define sctp_sbspace(asoc, sb) ((long) ((sctp_maxspace(sb) > (asoc)->sb_cc) ? (sctp_maxspace(sb) - (asoc)->sb_cc) : 0))
#define sctp_sbspace_failedmsgs(sb) ((long) ((sctp_maxspace(sb) > (sb)->sb_cc) ? (sctp_maxspace(sb) - (sb)->sb_cc) : 0))
#define sctp_sbspace_sub(a,b) (((a) > (b)) ? ((a) - (b)) : 0)
/*
* I tried to cache the readq entries at one point. But the reality
* is that it did not add any performance since this meant we had to
* lock the STCB on read. And at that point once you have to do an
* extra lock, it really does not matter if the lock is in the ZONE
* stuff or in our code. Note that this same problem would occur with
* an mbuf cache as well so it is not really worth doing, at least
* right now :-D
*/
#ifdef INVARIANTS
#define sctp_free_a_readq(_stcb, _readq) { \
if ((_readq)->on_strm_q) \
panic("On strm q stcb:%p readq:%p", (_stcb), (_readq)); \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_readq), (_readq)); \
SCTP_DECR_READQ_COUNT(); \
}
#else
#define sctp_free_a_readq(_stcb, _readq) { \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_readq), (_readq)); \
SCTP_DECR_READQ_COUNT(); \
}
#endif
#define sctp_alloc_a_readq(_stcb, _readq) { \
(_readq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_readq), struct sctp_queued_to_read); \
if ((_readq)) { \
SCTP_INCR_READQ_COUNT(); \
} \
}
#define sctp_free_a_strmoq(_stcb, _strmoq, _so_locked) { \
if ((_strmoq)->holds_key_ref) { \
sctp_auth_key_release(stcb, sp->auth_keyid, _so_locked); \
(_strmoq)->holds_key_ref = 0; \
} \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_strmoq), (_strmoq)); \
SCTP_DECR_STRMOQ_COUNT(); \
}
#define sctp_alloc_a_strmoq(_stcb, _strmoq) { \
(_strmoq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_strmoq), struct sctp_stream_queue_pending); \
if ((_strmoq)) { \
memset(_strmoq, 0, sizeof(struct sctp_stream_queue_pending)); \
SCTP_INCR_STRMOQ_COUNT(); \
(_strmoq)->holds_key_ref = 0; \
} \
}
#define sctp_free_a_chunk(_stcb, _chk, _so_locked) { \
if ((_chk)->holds_key_ref) {\
sctp_auth_key_release((_stcb), (_chk)->auth_keyid, _so_locked); \
(_chk)->holds_key_ref = 0; \
} \
if (_stcb) { \
SCTP_TCB_LOCK_ASSERT((_stcb)); \
if ((_chk)->whoTo) { \
sctp_free_remote_addr((_chk)->whoTo); \
(_chk)->whoTo = NULL; \
} \
if (((_stcb)->asoc.free_chunk_cnt > SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit)) || \
(SCTP_BASE_INFO(ipi_free_chunks) > SCTP_BASE_SYSCTL(sctp_system_free_resc_limit))) { \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \
SCTP_DECR_CHK_COUNT(); \
} else { \
TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
(_stcb)->asoc.free_chunk_cnt++; \
atomic_add_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \
} \
} else { \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \
SCTP_DECR_CHK_COUNT(); \
} \
}
#define sctp_alloc_a_chunk(_stcb, _chk) { \
if (TAILQ_EMPTY(&(_stcb)->asoc.free_chunks)) { \
(_chk) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_chunk), struct sctp_tmit_chunk); \
if ((_chk)) { \
SCTP_INCR_CHK_COUNT(); \
(_chk)->whoTo = NULL; \
(_chk)->holds_key_ref = 0; \
} \
} else { \
(_chk) = TAILQ_FIRST(&(_stcb)->asoc.free_chunks); \
TAILQ_REMOVE(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \
(_chk)->holds_key_ref = 0; \
SCTP_STAT_INCR(sctps_cached_chk); \
(_stcb)->asoc.free_chunk_cnt--; \
} \
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
#define sctp_free_remote_addr(__net) { \
if ((__net)) { \
if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \
RO_NHFREE(&(__net)->ro); \
if ((__net)->src_addr_selected) { \
sctp_free_ifa((__net)->ro._s_addr); \
(__net)->ro._s_addr = NULL; \
} \
(__net)->src_addr_selected = 0; \
(__net)->dest_state &= ~SCTP_ADDR_REACHABLE; \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \
SCTP_DECR_RADDR_COUNT(); \
} \
} \
}
#define sctp_sbfree(ctl, stcb, sb, m) { \
SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \
if (((ctl)->do_not_ref_stcb == 0) && stcb) {\
SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
} \
if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
SCTP_BUF_TYPE(m) != MT_OOBDATA) \
atomic_subtract_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
}
#define sctp_sballoc(stcb, sb, m) { \
atomic_add_int(&(sb)->sb_cc,SCTP_BUF_LEN((m))); \
atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
if (stcb) { \
atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
} \
if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
SCTP_BUF_TYPE(m) != MT_OOBDATA) \
atomic_add_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
}
#else /* FreeBSD Version <= 500000 or non-FreeBSD */
#define sctp_free_remote_addr(__net) { \
if ((__net)) { \
if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \
if ((__net)->ro.ro_rt) { \
RTFREE((__net)->ro.ro_rt); \
(__net)->ro.ro_rt = NULL; \
} \
if ((__net)->src_addr_selected) { \
sctp_free_ifa((__net)->ro._s_addr); \
(__net)->ro._s_addr = NULL; \
} \
(__net)->src_addr_selected = 0; \
(__net)->dest_state &=~SCTP_ADDR_REACHABLE; \
SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \
SCTP_DECR_RADDR_COUNT(); \
} \
} \
}
#define sctp_sbfree(ctl, stcb, sb, m) { \
SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \
if (((ctl)->do_not_ref_stcb == 0) && stcb) { \
SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
} \
}
#define sctp_sballoc(stcb, sb, m) { \
atomic_add_int(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
if (stcb) { \
atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
} \
}
#endif
#define sctp_ucount_incr(val) { \
val++; \
}
#define sctp_ucount_decr(val) { \
if (val > 0) { \
val--; \
} else { \
val = 0; \
} \
}
#define sctp_mbuf_crush(data) do { \
struct mbuf *_m; \
_m = (data); \
while (_m && (SCTP_BUF_LEN(_m) == 0)) { \
(data) = SCTP_BUF_NEXT(_m); \
SCTP_BUF_NEXT(_m) = NULL; \
sctp_m_free(_m); \
_m = (data); \
} \
} while (0)
#define sctp_flight_size_decrease(tp1) do { \
if (tp1->whoTo->flight_size >= tp1->book_size) \
tp1->whoTo->flight_size -= tp1->book_size; \
else \
tp1->whoTo->flight_size = 0; \
} while (0)
#define sctp_flight_size_increase(tp1) do { \
(tp1)->whoTo->flight_size += (tp1)->book_size; \
} while (0)
#ifdef SCTP_FS_SPEC_LOG
#define sctp_total_flight_decrease(stcb, tp1) do { \
if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \
stcb->asoc.fs_index = 0;\
stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \
stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.tsn; \
stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \
stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \
stcb->asoc.fslog[stcb->asoc.fs_index].incr = 0; \
stcb->asoc.fslog[stcb->asoc.fs_index].decr = 1; \
stcb->asoc.fs_index++; \
tp1->window_probe = 0; \
if (stcb->asoc.total_flight >= tp1->book_size) { \
stcb->asoc.total_flight -= tp1->book_size; \
if (stcb->asoc.total_flight_count > 0) \
stcb->asoc.total_flight_count--; \
} else { \
stcb->asoc.total_flight = 0; \
stcb->asoc.total_flight_count = 0; \
} \
} while (0)
#define sctp_total_flight_increase(stcb, tp1) do { \
if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \
stcb->asoc.fs_index = 0;\
stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \
stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.tsn; \
stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \
stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \
stcb->asoc.fslog[stcb->asoc.fs_index].incr = 1; \
stcb->asoc.fslog[stcb->asoc.fs_index].decr = 0; \
stcb->asoc.fs_index++; \
(stcb)->asoc.total_flight_count++; \
(stcb)->asoc.total_flight += (tp1)->book_size; \
} while (0)
#else
#define sctp_total_flight_decrease(stcb, tp1) do { \
tp1->window_probe = 0; \
if (stcb->asoc.total_flight >= tp1->book_size) { \
stcb->asoc.total_flight -= tp1->book_size; \
if (stcb->asoc.total_flight_count > 0) \
stcb->asoc.total_flight_count--; \
} else { \
stcb->asoc.total_flight = 0; \
stcb->asoc.total_flight_count = 0; \
} \
} while (0)
#define sctp_total_flight_increase(stcb, tp1) do { \
(stcb)->asoc.total_flight_count++; \
(stcb)->asoc.total_flight += (tp1)->book_size; \
} while (0)
#endif
#define SCTP_PF_ENABLED(_net) (_net->pf_threshold < _net->failure_threshold)
#define SCTP_NET_IS_PF(_net) (_net->pf_threshold < _net->error_count)
struct sctp_nets;
struct sctp_inpcb;
struct sctp_tcb;
struct sctphdr;
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
void sctp_close(struct socket *so);
#else
int sctp_detach(struct socket *so);
#endif
int sctp_disconnect(struct socket *so);
#if !defined(__Userspace__)
#if defined(__APPLE__) && !defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) && !defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION) && !defined(APPLE_ELCAPITAN)
void sctp_ctlinput(int, struct sockaddr *, void *, struct ifnet * SCTP_UNUSED);
#else
void sctp_ctlinput(int, struct sockaddr *, void *);
#endif
int sctp_ctloutput(struct socket *, struct sockopt *);
#ifdef INET
void sctp_input_with_port(struct mbuf *, int, uint16_t);
#if defined(__FreeBSD__) && !defined(__Userspace__)
int sctp_input(struct mbuf **, int *, int);
#else
void sctp_input(struct mbuf *, int);
#endif
#endif
void sctp_pathmtu_adjustment(struct sctp_tcb *, uint16_t);
#else
#if defined(__Userspace__)
void sctp_pathmtu_adjustment(struct sctp_tcb *, uint16_t);
#else
void sctp_input(struct mbuf *,...);
#endif
void *sctp_ctlinput(int, struct sockaddr *, void *);
int sctp_ctloutput(int, struct socket *, int, int, struct mbuf **);
#endif
void sctp_drain(void);
#if defined(__Userspace__)
void sctp_init(uint16_t,
int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
void (*)(const char *, ...), int start_threads);
#elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION))
void sctp_init(struct protosw *pp, struct domain *dp);
#else
void sctp_init(void);
void sctp_notify(struct sctp_inpcb *, struct sctp_tcb *, struct sctp_nets *,
uint8_t, uint8_t, uint16_t, uint32_t);
#endif
#if !defined(__FreeBSD__) && !defined(__Userspace__)
void sctp_finish(void);
#endif
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
int sctp_flush(struct socket *, int);
#endif
int sctp_shutdown(struct socket *);
int sctp_bindx(struct socket *, int, struct sockaddr_storage *,
int, int, struct proc *);
/* can't use sctp_assoc_t here */
int sctp_peeloff(struct socket *, struct socket *, int, caddr_t, int *);
#if !defined(__Userspace__)
int sctp_ingetaddr(struct socket *, struct sockaddr **);
#else
int sctp_ingetaddr(struct socket *, struct mbuf *);
#endif
#if !defined(__Userspace__)
int sctp_peeraddr(struct socket *, struct sockaddr **);
#else
int sctp_peeraddr(struct socket *, struct mbuf *);
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
int sctp_listen(struct socket *, int, struct thread *);
#elif defined(_WIN32) && !defined(__Userspace__)
int sctp_listen(struct socket *, int, PKTHREAD);
#elif defined(__Userspace__)
int sctp_listen(struct socket *, int, struct proc *);
#else
int sctp_listen(struct socket *, struct proc *);
#endif
int sctp_accept(struct socket *, struct sockaddr **);
#endif /* _KERNEL */
#endif /* !_NETINET_SCTP_VAR_H_ */

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ext/sctp/usrsctp/usrsctplib/netinet/sctputil.h Normal file
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 363323 2020-07-19 12:34:19Z tuexen $");
#endif
#ifndef _NETINET_SCTP_UTIL_H_
#define _NETINET_SCTP_UTIL_H_
#if defined(_KERNEL) || defined(__Userspace__)
#define SCTP_READ_LOCK_HELD 1
#define SCTP_READ_LOCK_NOT_HELD 0
#ifdef SCTP_ASOCLOG_OF_TSNS
void sctp_print_out_track_log(struct sctp_tcb *stcb);
#endif
#ifdef SCTP_MBUF_LOGGING
struct mbuf *sctp_m_free(struct mbuf *m);
void sctp_m_freem(struct mbuf *m);
#else
#define sctp_m_free m_free
#define sctp_m_freem m_freem
#endif
#if defined(SCTP_LOCAL_TRACE_BUF)
void
sctp_log_trace(uint32_t fr, const char *str SCTP_UNUSED, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e, uint32_t f);
#endif
#define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
/*
* Function prototypes
*/
int32_t
sctp_map_assoc_state(int);
uint32_t
sctp_get_ifa_hash_val(struct sockaddr *addr);
struct sctp_ifa *
sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
struct sctp_ifa *
sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
uint32_t sctp_select_a_tag(struct sctp_inpcb *, uint16_t lport, uint16_t rport, int);
int sctp_init_asoc(struct sctp_inpcb *, struct sctp_tcb *, uint32_t, uint32_t, uint16_t);
void sctp_fill_random_store(struct sctp_pcb *);
void
sctp_notify_stream_reset_add(struct sctp_tcb *stcb, uint16_t numberin,
uint16_t numberout, int flag);
void
sctp_notify_stream_reset_tsn(struct sctp_tcb *stcb, uint32_t sending_tsn, uint32_t recv_tsn, int flag);
/*
* NOTE: sctp_timer_start() will increment the reference count of any relevant
* structure the timer is referencing, in order to prevent a race condition
* between the timer executing and the structure being freed.
*
* When the timer fires or sctp_timer_stop() is called, these references are
* removed.
*/
void
sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
void
sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *, uint32_t);
int
sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
void
sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
void
sctp_wakeup_the_read_socket(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
int so_locked
#if !(defined(__APPLE__) && !defined(__Userspace__))
SCTP_UNUSED
#endif
);
#if defined(__Userspace__)
void sctp_invoke_recv_callback(struct sctp_inpcb *,
struct sctp_tcb *,
struct sctp_queued_to_read *,
int);
#endif
void
sctp_add_to_readq(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
struct sctp_queued_to_read *control,
struct sockbuf *sb,
int end,
int inpread_locked,
int so_locked);
void sctp_iterator_worker(void);
uint32_t sctp_get_prev_mtu(uint32_t);
uint32_t sctp_get_next_mtu(uint32_t);
void
sctp_timeout_handler(void *);
int
sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
struct sctp_nets *, struct timeval *, int);
uint32_t sctp_calculate_len(struct mbuf *);
caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
struct sctp_paramhdr *
sctp_get_next_param(struct mbuf *, int,
struct sctp_paramhdr *, int);
struct mbuf *
sctp_add_pad_tombuf(struct mbuf *, int);
struct mbuf *
sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *, int);
void
sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
struct sctp_inpcb *new_inp,
struct sctp_tcb *stcb, int waitflags);
void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
/* Stop all timers for association and remote addresses. */
void sctp_stop_association_timers(struct sctp_tcb *, bool);
void sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int, int);
int sctp_expand_mapping_array(struct sctp_association *, uint32_t);
void sctp_abort_notification(struct sctp_tcb *, uint8_t, uint16_t,
struct sctp_abort_chunk *, int);
/* We abort responding to an IP packet for some reason */
void
sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, struct mbuf *,
int, struct sockaddr *, struct sockaddr *,
struct sctphdr *, struct mbuf *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t,
#endif
uint32_t, uint16_t);
/* We choose to abort via user input */
void
sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *,
struct mbuf *, int);
void sctp_handle_ootb(struct mbuf *, int, int,
struct sockaddr *, struct sockaddr *,
struct sctphdr *, struct sctp_inpcb *,
struct mbuf *,
#if defined(__FreeBSD__) && !defined(__Userspace__)
uint8_t, uint32_t, uint16_t,
#endif
uint32_t, uint16_t);
int sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr,
int totaddr, int *error);
int
sctp_connectx_helper_find(struct sctp_inpcb *, struct sockaddr *,
unsigned int, unsigned int *, unsigned int *, unsigned int);
int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
#ifdef INET6
uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
#if defined(SCTP_EMBEDDED_V6_SCOPE)
struct sockaddr_in6 *
sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
#ifdef SCTP_KAME
#define sctp_recover_scope_mac(addr, store) do { \
if ((addr->sin6_family == AF_INET6) && \
(IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
*store = *addr; \
if (addr->sin6_scope_id == 0) { \
if (!sa6_recoverscope(store)) { \
addr = store; \
} \
} else { \
in6_clearscope(&addr->sin6_addr); \
addr = store; \
} \
} \
} while (0)
#else
#define sctp_recover_scope_mac(addr, store) do { \
if ((addr->sin6_family == AF_INET6) && \
(IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
*store = *addr; \
if (addr->sin6_scope_id == 0) { \
if (!in6_recoverscope(store, &store->sin6_addr, \
NULL)) { \
addr = store; \
} \
} else { \
in6_clearscope(&addr->sin6_addr); \
addr = store; \
} \
} \
} while (0)
#endif
#endif
#endif
int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
void sctp_print_address(struct sockaddr *);
int
sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
uint8_t, int);
struct mbuf *sctp_generate_cause(uint16_t, char *);
struct mbuf *sctp_generate_no_user_data_cause(uint32_t);
void sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp,
struct sockaddr *sa, uint32_t vrf_id, int *error,
void *p);
void sctp_bindx_delete_address(struct sctp_inpcb *inp, struct sockaddr *sa,
uint32_t vrf_id, int *error);
int sctp_local_addr_count(struct sctp_tcb *stcb);
#ifdef SCTP_MBCNT_LOGGING
void
sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
struct sctp_tmit_chunk *, int);
#else
#define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
do { \
if (tp1->data != NULL) { \
atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \
if ((asoc)->total_output_queue_size >= tp1->book_size) { \
atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \
} else { \
(asoc)->total_output_queue_size = 0; \
} \
if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \
} else { \
stcb->sctp_socket->so_snd.sb_cc = 0; \
} \
} \
} \
} while (0)
#endif
#define sctp_free_spbufspace(stcb, asoc, sp) \
do { \
if (sp->data != NULL) { \
if ((asoc)->total_output_queue_size >= sp->length) { \
atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \
} else { \
(asoc)->total_output_queue_size = 0; \
} \
if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
} else { \
stcb->sctp_socket->so_snd.sb_cc = 0; \
} \
} \
} \
} while (0)
#define sctp_snd_sb_alloc(stcb, sz) \
do { \
atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
if ((stcb->sctp_socket != NULL) && \
((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
} \
} while (0)
/* functions to start/stop udp tunneling */
#if (defined(__APPLE__) || defined(__FreeBSD__)) && !defined(__Userspace__)
void sctp_over_udp_stop(void);
int sctp_over_udp_start(void);
#endif
#if defined(_WIN32) && !defined(__Userspace__)
void sctp_over_udp_restart(void);
#endif
int
sctp_soreceive(struct socket *so, struct sockaddr **psa,
struct uio *uio,
struct mbuf **mp0,
struct mbuf **controlp,
int *flagsp);
void
sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
void
sctp_wakeup_log(struct sctp_tcb *stcb,
uint32_t wake_cnt, int from);
void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
#ifdef SCTP_MBUF_LOGGING
void
sctp_log_mb(struct mbuf *m, int from);
void
sctp_log_mbc(struct mbuf *m, int from);
#endif
void
sctp_sblog(struct sockbuf *sb,
struct sctp_tcb *stcb, int from, int incr);
void
sctp_log_strm_del(struct sctp_queued_to_read *control,
struct sctp_queued_to_read *poschk,
int from);
void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
void rto_logging(struct sctp_nets *net, int from);
void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
void sctp_log_block(uint8_t, struct sctp_association *, ssize_t);
void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
int sctp_fill_stat_log(void *, size_t *);
void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
void sctp_print_mapping_array(struct sctp_association *asoc);
void sctp_clr_stat_log(void);
#ifdef SCTP_AUDITING_ENABLED
void
sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
struct sctp_nets *);
void sctp_audit_log(uint8_t, uint8_t);
#endif
uint32_t sctp_min_mtu(uint32_t, uint32_t, uint32_t);
#if defined(__FreeBSD__) && !defined(__Userspace__)
void sctp_hc_set_mtu(union sctp_sockstore *, uint16_t, uint32_t);
uint32_t sctp_hc_get_mtu(union sctp_sockstore *, uint16_t);
#endif
void sctp_set_state(struct sctp_tcb *, int);
void sctp_add_substate(struct sctp_tcb *, int);
uint32_t sctp_ticks_to_msecs(uint32_t);
uint32_t sctp_msecs_to_ticks(uint32_t);
uint32_t sctp_ticks_to_secs(uint32_t);
uint32_t sctp_secs_to_ticks(uint32_t);
#endif /* _KERNEL */
#endif

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sources += files('sctp6_usrreq.c')

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ext/sctp/usrsctp/usrsctplib/netinet6/sctp6_var.h Normal file
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet6/sctp6_var.h 317457 2017-04-26 19:26:40Z tuexen $");
#endif
#ifndef _NETINET6_SCTP6_VAR_H_
#define _NETINET6_SCTP6_VAR_H_
#if defined(__Userspace__)
#ifdef INET
extern void in6_sin6_2_sin(struct sockaddr_in *, struct sockaddr_in6 *);
extern void in6_sin6_2_sin_in_sock(struct sockaddr *);
extern void in6_sin_2_v4mapsin6(const struct sockaddr_in *, struct sockaddr_in6 *);
#endif
#endif
#if defined(_KERNEL)
#if !defined(__Userspace__)
SYSCTL_DECL(_net_inet6_sctp6);
extern struct pr_usrreqs sctp6_usrreqs;
#else
int sctp6_usrreq(struct socket *, int, struct mbuf *, struct mbuf *, struct mbuf *);
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
int sctp6_input(struct mbuf **, int *);
int sctp6_input_with_port(struct mbuf **, int *, uint16_t);
#else
int sctp6_input(struct mbuf **, int *, int);
int sctp6_input_with_port(struct mbuf **, int *, uint16_t);
#endif
int sctp6_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
struct mbuf *, struct proc *);
#if defined(__APPLE__) && !defined(__Userspace__) && !defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) && !defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION) && !defined(APPLE_ELCAPITAN)
void sctp6_ctlinput(int, struct sockaddr *, void *, struct ifnet * SCTP_UNUSED);
#else
void sctp6_ctlinput(int, struct sockaddr *, void *);
#endif
#if !((defined(__FreeBSD__) || defined(__APPLE__)) && !defined(__Userspace__))
extern void in6_sin_2_v4mapsin6(struct sockaddr_in *, struct sockaddr_in6 *);
extern void in6_sin6_2_sin(struct sockaddr_in *, struct sockaddr_in6 *);
extern void in6_sin6_2_sin_in_sock(struct sockaddr *);
#endif
void sctp6_notify(struct sctp_inpcb *, struct sctp_tcb *, struct sctp_nets *,
uint8_t, uint8_t, uint32_t);
#endif
#endif

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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USER_ATOMIC_H_
#define _USER_ATOMIC_H_
/* __Userspace__ version of sys/i386/include/atomic.h goes here */
/* TODO In the future, might want to not use i386 specific assembly.
* The options include:
* - implement them generically (but maybe not truly atomic?) in userspace
* - have ifdef's for __Userspace_arch_ perhaps (OS isn't enough...)
*/
#include <stdio.h>
#include <sys/types.h>
#if defined(__APPLE__) || defined(_WIN32)
#if defined(_WIN32)
#define atomic_add_int(addr, val) InterlockedExchangeAdd((LPLONG)addr, (LONG)val)
#define atomic_fetchadd_int(addr, val) InterlockedExchangeAdd((LPLONG)addr, (LONG)val)
#define atomic_subtract_int(addr, val) InterlockedExchangeAdd((LPLONG)addr,-((LONG)val))
#define atomic_cmpset_int(dst, exp, src) InterlockedCompareExchange((LPLONG)dst, src, exp)
#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (InterlockedExchangeAdd((LPLONG)addr, (-1L)) == 1)
#else
#include <libkern/OSAtomic.h>
#define atomic_add_int(addr, val) OSAtomicAdd32Barrier(val, (int32_t *)addr)
#define atomic_fetchadd_int(addr, val) OSAtomicAdd32Barrier(val, (int32_t *)addr)
#define atomic_subtract_int(addr, val) OSAtomicAdd32Barrier(-val, (int32_t *)addr)
#define atomic_cmpset_int(dst, exp, src) OSAtomicCompareAndSwapIntBarrier(exp, src, (int *)dst)
#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 0)
#endif
#if defined(INVARIANTS)
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
{ \
int32_t newval; \
newval = atomic_fetchadd_int(addr, -val); \
if (newval < 0) { \
panic("Counter goes negative"); \
} \
}
#else
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
{ \
int32_t newval; \
newval = atomic_fetchadd_int(addr, -val); \
if (newval < 0) { \
*addr = 0; \
} \
}
#endif
#if defined(_WIN32)
static void atomic_init(void) {} /* empty when we are not using atomic_mtx */
#else
static inline void atomic_init(void) {} /* empty when we are not using atomic_mtx */
#endif
#else
/* Using gcc built-in functions for atomic memory operations
Reference: http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html
Requires gcc version 4.1.0
compile with -march=i486
*/
/*Atomically add V to *P.*/
#define atomic_add_int(P, V) (void) __sync_fetch_and_add(P, V)
/*Atomically subtrace V from *P.*/
#define atomic_subtract_int(P, V) (void) __sync_fetch_and_sub(P, V)
/*
* Atomically add the value of v to the integer pointed to by p and return
* the previous value of *p.
*/
#define atomic_fetchadd_int(p, v) __sync_fetch_and_add(p, v)
/* Following explanation from src/sys/i386/include/atomic.h,
* for atomic compare and set
*
* if (*dst == exp) *dst = src (all 32 bit words)
*
* Returns 0 on failure, non-zero on success
*/
#define atomic_cmpset_int(dst, exp, src) __sync_bool_compare_and_swap(dst, exp, src)
#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 1)
#if defined(INVARIANTS)
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
{ \
int32_t oldval; \
oldval = atomic_fetchadd_int(addr, -val); \
if (oldval < val) { \
panic("Counter goes negative"); \
} \
}
#else
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
{ \
int32_t oldval; \
oldval = atomic_fetchadd_int(addr, -val); \
if (oldval < val) { \
*addr = 0; \
} \
}
#endif
static inline void atomic_init(void) {} /* empty when we are not using atomic_mtx */
#endif
#if 0 /* using libatomic_ops */
#include "user_include/atomic_ops.h"
/*Atomically add incr to *P, and return the original value of *P.*/
#define atomic_add_int(P, V) AO_fetch_and_add((AO_t*)P, V)
#define atomic_subtract_int(P, V) AO_fetch_and_add((AO_t*)P, -(V))
/*
* Atomically add the value of v to the integer pointed to by p and return
* the previous value of *p.
*/
#define atomic_fetchadd_int(p, v) AO_fetch_and_add((AO_t*)p, v)
/* Atomically compare *addr to old_val, and replace *addr by new_val
if the first comparison succeeds. Returns nonzero if the comparison
succeeded and *addr was updated.
*/
/* Following Explanation from src/sys/i386/include/atomic.h, which
matches that of AO_compare_and_swap above.
* Atomic compare and set, used by the mutex functions
*
* if (*dst == exp) *dst = src (all 32 bit words)
*
* Returns 0 on failure, non-zero on success
*/
#define atomic_cmpset_int(dst, exp, src) AO_compare_and_swap((AO_t*)dst, exp, src)
static inline void atomic_init() {} /* empty when we are not using atomic_mtx */
#endif /* closing #if for libatomic */
#if 0 /* using atomic_mtx */
#include <pthread.h>
extern userland_mutex_t atomic_mtx;
#if defined(_WIN32)
static inline void atomic_init() {
InitializeCriticalSection(&atomic_mtx);
}
static inline void atomic_destroy() {
DeleteCriticalSection(&atomic_mtx);
}
static inline void atomic_lock() {
EnterCriticalSection(&atomic_mtx);
}
static inline void atomic_unlock() {
LeaveCriticalSection(&atomic_mtx);
}
#else
static inline void atomic_init() {
pthread_mutexattr_t mutex_attr;
pthread_mutexattr_init(&mutex_attr);
#ifdef INVARIANTS
pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_ERRORCHECK);
#endif
pthread_mutex_init(&accept_mtx, &mutex_attr);
pthread_mutexattr_destroy(&mutex_attr);
}
static inline void atomic_destroy() {
(void)pthread_mutex_destroy(&atomic_mtx);
}
static inline void atomic_lock() {
#ifdef INVARIANTS
KASSERT(pthread_mutex_lock(&atomic_mtx) == 0, ("atomic_lock: atomic_mtx already locked"))
#else
(void)pthread_mutex_lock(&atomic_mtx);
#endif
}
static inline void atomic_unlock() {
#ifdef INVARIANTS
KASSERT(pthread_mutex_unlock(&atomic_mtx) == 0, ("atomic_unlock: atomic_mtx not locked"))
#else
(void)pthread_mutex_unlock(&atomic_mtx);
#endif
}
#endif
/*
* For userland, always use lock prefixes so that the binaries will run
* on both SMP and !SMP systems.
*/
#define MPLOCKED "lock ; "
/*
* Atomically add the value of v to the integer pointed to by p and return
* the previous value of *p.
*/
static __inline u_int
atomic_fetchadd_int(volatile void *n, u_int v)
{
int *p = (int *) n;
atomic_lock();
__asm __volatile(
" " MPLOCKED " "
" xaddl %0, %1 ; "
"# atomic_fetchadd_int"
: "+r" (v), /* 0 (result) */
"=m" (*p) /* 1 */
: "m" (*p)); /* 2 */
atomic_unlock();
return (v);
}
#ifdef CPU_DISABLE_CMPXCHG
static __inline int
atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src)
{
u_char res;
atomic_lock();
__asm __volatile(
" pushfl ; "
" cli ; "
" cmpl %3,%4 ; "
" jne 1f ; "
" movl %2,%1 ; "
"1: "
" sete %0 ; "
" popfl ; "
"# atomic_cmpset_int"
: "=q" (res), /* 0 */
"=m" (*dst) /* 1 */
: "r" (src), /* 2 */
"r" (exp), /* 3 */
"m" (*dst) /* 4 */
: "memory");
atomic_unlock();
return (res);
}
#else /* !CPU_DISABLE_CMPXCHG */
static __inline int
atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src)
{
atomic_lock();
u_char res;
__asm __volatile(
" " MPLOCKED " "
" cmpxchgl %2,%1 ; "
" sete %0 ; "
"1: "
"# atomic_cmpset_int"
: "=a" (res), /* 0 */
"=m" (*dst) /* 1 */
: "r" (src), /* 2 */
"a" (exp), /* 3 */
"m" (*dst) /* 4 */
: "memory");
atomic_unlock();
return (res);
}
#endif /* CPU_DISABLE_CMPXCHG */
#define atomic_add_int(P, V) do { \
atomic_lock(); \
(*(u_int *)(P) += (V)); \
atomic_unlock(); \
} while(0)
#define atomic_subtract_int(P, V) do { \
atomic_lock(); \
(*(u_int *)(P) -= (V)); \
atomic_unlock(); \
} while(0)
#endif
#endif

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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* __Userspace__ */
#include <stdlib.h>
#if !defined(_WIN32)
#include <stdint.h>
#include <netinet/sctp_os_userspace.h>
#endif
#include <user_environment.h>
#include <sys/types.h>
/* #include <sys/param.h> defines MIN */
#if !defined(MIN)
#define MIN(arg1,arg2) ((arg1) < (arg2) ? (arg1) : (arg2))
#endif
#include <string.h>
#define uHZ 1000
/* See user_include/user_environment.h for comments about these variables */
int maxsockets = 25600;
int hz = uHZ;
int ip_defttl = 64;
int ipport_firstauto = 49152, ipport_lastauto = 65535;
int nmbclusters = 65536;
/* Source ip_output.c. extern'd in ip_var.h */
u_short ip_id = 0; /*__Userspace__ TODO Should it be initialized to zero? */
/* used in user_include/user_atomic.h in order to make the operations
* defined there truly atomic
*/
userland_mutex_t atomic_mtx;
/* If the entropy device is not loaded, make a token effort to
* provide _some_ kind of randomness. This should only be used
* inside other RNG's, like arc4random(9).
*/
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
void
init_random(void)
{
return;
}
int
read_random(void *buf, int count)
{
memset(buf, 'A', count);
return (count);
}
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
void
init_random(void)
{
return;
}
int
read_random(void *buf, int count)
{
if (count >= 0) {
arc4random_buf(buf, count);
}
return (count);
}
#else
void
init_random(void)
{
struct timeval now;
unsigned int seed;
(void)SCTP_GETTIME_TIMEVAL(&now);
seed = 0;
seed |= (unsigned int)now.tv_sec;
seed |= (unsigned int)now.tv_usec;
#if !defined(_WIN32) &&! defined(__native_client__)
seed |= getpid();
#endif
#if defined(_WIN32) || defined(__native_client__)
srand(seed);
#else
srandom(seed);
#endif
return;
}
int
read_random(void *buf, int count)
{
uint32_t randval;
int size, i;
/* Fill buf[] with random(9) output */
for (i = 0; i < count; i+= (int)sizeof(uint32_t)) {
randval = random();
size = MIN(count - i, (int)sizeof(uint32_t));
memcpy(&((char *)buf)[i], &randval, (size_t)size);
}
return (count);
}
#endif

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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USER_ENVIRONMENT_H_
#define _USER_ENVIRONMENT_H_
/* __Userspace__ */
#include <sys/types.h>
#ifdef __FreeBSD__
#ifndef _SYS_MUTEX_H_
#include <sys/mutex.h>
#endif
#endif
#if defined(_WIN32)
#include "netinet/sctp_os_userspace.h"
#endif
/* maxsockets is used in SCTP_ZONE_INIT call. It refers to
* kern.ipc.maxsockets kernel environment variable.
*/
extern int maxsockets;
/* int hz; is declared in sys/kern/subr_param.c and refers to kernel timer frequency.
* See http://ivoras.sharanet.org/freebsd/vmware.html for additional info about kern.hz
* hz is initialized in void init_param1(void) in that file.
*/
extern int hz;
/* The following two ints define a range of available ephemeral ports. */
extern int ipport_firstauto, ipport_lastauto;
/* nmbclusters is used in sctp_usrreq.c (e.g., sctp_init). In the FreeBSD kernel,
* this is 1024 + maxusers * 64.
*/
extern int nmbclusters;
#if !defined(_MSC_VER) && !defined(__MINGW32__)
#define min(a,b) (((a)>(b))?(b):(a))
#define max(a,b) (((a)>(b))?(a):(b))
#endif
void init_random(void);
int read_random(void *, int);
/* errno's may differ per OS. errno.h now included in sctp_os_userspace.h */
/* Source: /usr/src/sys/sys/errno.h */
/* #define ENOSPC 28 */ /* No space left on device */
/* #define ENOBUFS 55 */ /* No buffer space available */
/* #define ENOMEM 12 */ /* Cannot allocate memory */
/* #define EACCES 13 */ /* Permission denied */
/* #define EFAULT 14 */ /* Bad address */
/* #define EHOSTDOWN 64 */ /* Host is down */
/* #define EHOSTUNREACH 65 */ /* No route to host */
/* Source ip_output.c. extern'd in ip_var.h */
extern u_short ip_id;
#if defined(__linux__)
#define IPV6_VERSION 0x60
#endif
#if defined(INVARIANTS)
#include <stdlib.h>
static inline void
terminate_non_graceful(void) {
abort();
}
#define panic(...) \
do { \
SCTP_PRINTF("%s(): ", __func__); \
SCTP_PRINTF(__VA_ARGS__); \
SCTP_PRINTF("\n"); \
terminate_non_graceful(); \
} while (0)
#define KASSERT(cond, args) \
do { \
if (!(cond)) { \
panic args ; \
} \
} while (0)
#else
#define KASSERT(cond, args)
#endif
/* necessary for sctp_pcb.c */
extern int ip_defttl;
#endif

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/*-
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
* $FreeBSD: src/sys/netinet/in_pcb.h,v 1.100.2.1 2007/12/07 05:46:08 kmacy Exp $
*/
#ifndef _USER_INPCB_H_
#define _USER_INPCB_H_
#include <user_route.h> /* was <net/route.h> */
struct inpcbpolicy;
/*
* Struct inpcb is the ommon structure pcb for the Internet Protocol
* implementation.
*
* Pointers to local and foreign host table entries, local and foreign socket
* numbers, and pointers up (to a socket structure) and down (to a
* protocol-specific control block) are stored here.
*/
LIST_HEAD(inpcbhead, inpcb);
LIST_HEAD(inpcbporthead, inpcbport);
/*
* PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
* So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing
* the following structure.
*/
struct in_addr_4in6 {
uint32_t ia46_pad32[3];
struct in_addr ia46_addr4;
};
/*
* NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. in_conninfo has
* some extra padding to accomplish this.
*/
struct in_endpoints {
uint16_t ie_fport; /* foreign port */
uint16_t ie_lport; /* local port */
/* protocol dependent part, local and foreign addr */
union {
/* foreign host table entry */
struct in_addr_4in6 ie46_foreign;
struct in6_addr ie6_foreign;
} ie_dependfaddr;
union {
/* local host table entry */
struct in_addr_4in6 ie46_local;
struct in6_addr ie6_local;
} ie_dependladdr;
#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4
#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4
#define ie6_faddr ie_dependfaddr.ie6_foreign
#define ie6_laddr ie_dependladdr.ie6_local
};
/*
* XXX The defines for inc_* are hacks and should be changed to direct
* references.
*/
struct in_conninfo {
uint8_t inc_flags;
uint8_t inc_len;
uint16_t inc_pad; /* XXX alignment for in_endpoints */
/* protocol dependent part */
struct in_endpoints inc_ie;
};
#define inc_isipv6 inc_flags /* temp compatibility */
#define inc_fport inc_ie.ie_fport
#define inc_lport inc_ie.ie_lport
#define inc_faddr inc_ie.ie_faddr
#define inc_laddr inc_ie.ie_laddr
#define inc6_faddr inc_ie.ie6_faddr
#define inc6_laddr inc_ie.ie6_laddr
struct icmp6_filter;
struct inpcb {
LIST_ENTRY(inpcb) inp_hash; /* hash list */
LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
void *inp_ppcb; /* pointer to per-protocol pcb */
struct inpcbinfo *inp_pcbinfo; /* PCB list info */
struct socket *inp_socket; /* back pointer to socket */
uint32_t inp_flow;
int inp_flags; /* generic IP/datagram flags */
u_char inp_vflag; /* IP version flag (v4/v6) */
#define INP_IPV4 0x1
#define INP_IPV6 0x2
#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */
#define INP_ONESBCAST 0x10 /* send all-ones broadcast */
#define INP_DROPPED 0x20 /* protocol drop flag */
#define INP_SOCKREF 0x40 /* strong socket reference */
#define INP_CONN 0x80
u_char inp_ip_ttl; /* time to live proto */
u_char inp_ip_p; /* protocol proto */
u_char inp_ip_minttl; /* minimum TTL or drop */
uint32_t inp_ispare1; /* connection id / queue id */
void *inp_pspare[2]; /* rtentry / general use */
/* Local and foreign ports, local and foreign addr. */
struct in_conninfo inp_inc;
/* list for this PCB's local port */
struct label *inp_label; /* MAC label */
struct inpcbpolicy *inp_sp; /* for IPSEC */
/* Protocol-dependent part; options. */
struct {
u_char inp4_ip_tos; /* type of service proto */
struct mbuf *inp4_options; /* IP options */
struct ip_moptions *inp4_moptions; /* IP multicast options */
} inp_depend4;
#define inp_fport inp_inc.inc_fport
#define inp_lport inp_inc.inc_lport
#define inp_faddr inp_inc.inc_faddr
#define inp_laddr inp_inc.inc_laddr
#define inp_ip_tos inp_depend4.inp4_ip_tos
#define inp_options inp_depend4.inp4_options
#define inp_moptions inp_depend4.inp4_moptions
struct {
/* IP options */
struct mbuf *inp6_options;
/* IP6 options for outgoing packets */
struct ip6_pktopts *inp6_outputopts;
/* IP multicast options */
#if 0
struct ip6_moptions *inp6_moptions;
#endif
/* ICMPv6 code type filter */
struct icmp6_filter *inp6_icmp6filt;
/* IPV6_CHECKSUM setsockopt */
int inp6_cksum;
short inp6_hops;
} inp_depend6;
LIST_ENTRY(inpcb) inp_portlist;
struct inpcbport *inp_phd; /* head of this list */
#define inp_zero_size offsetof(struct inpcb, inp_gencnt)
struct mtx inp_mtx;
#define in6p_faddr inp_inc.inc6_faddr
#define in6p_laddr inp_inc.inc6_laddr
#define in6p_hops inp_depend6.inp6_hops /* default hop limit */
#define in6p_ip6_nxt inp_ip_p
#define in6p_flowinfo inp_flow
#define in6p_vflag inp_vflag
#define in6p_options inp_depend6.inp6_options
#define in6p_outputopts inp_depend6.inp6_outputopts
#if 0
#define in6p_moptions inp_depend6.inp6_moptions
#endif
#define in6p_icmp6filt inp_depend6.inp6_icmp6filt
#define in6p_cksum inp_depend6.inp6_cksum
#define in6p_flags inp_flags /* for KAME src sync over BSD*'s */
#define in6p_socket inp_socket /* for KAME src sync over BSD*'s */
#define in6p_lport inp_lport /* for KAME src sync over BSD*'s */
#define in6p_fport inp_fport /* for KAME src sync over BSD*'s */
#define in6p_ppcb inp_ppcb /* for KAME src sync over BSD*'s */
};
/*
* The range of the generation count, as used in this implementation, is 9e19.
* We would have to create 300 billion connections per second for this number
* to roll over in a year. This seems sufficiently unlikely that we simply
* don't concern ourselves with that possibility.
*/
struct inpcbport {
LIST_ENTRY(inpcbport) phd_hash;
struct inpcbhead phd_pcblist;
u_short phd_port;
};
/*
* Global data structure for each high-level protocol (UDP, TCP, ...) in both
* IPv4 and IPv6. Holds inpcb lists and information for managing them.
*/
struct inpcbinfo {
/*
* Global list of inpcbs on the protocol.
*/
struct inpcbhead *ipi_listhead;
u_int ipi_count;
/*
* Global hash of inpcbs, hashed by local and foreign addresses and
* port numbers.
*/
struct inpcbhead *ipi_hashbase;
u_long ipi_hashmask;
/*
* Global hash of inpcbs, hashed by only local port number.
*/
struct inpcbporthead *ipi_porthashbase;
u_long ipi_porthashmask;
/*
* Fields associated with port lookup and allocation.
*/
u_short ipi_lastport;
u_short ipi_lastlow;
u_short ipi_lasthi;
/*
* UMA zone from which inpcbs are allocated for this protocol.
*/
struct uma_zone *ipi_zone;
/*
* Generation count--incremented each time a connection is allocated
* or freed.
*/
struct mtx ipi_mtx;
/*
* vimage 1
* general use 1
*/
void *ipi_pspare[2];
};
#define INP_LOCK_INIT(inp, d, t) \
mtx_init(&(inp)->inp_mtx, (d), (t), MTX_DEF | MTX_RECURSE | MTX_DUPOK)
#define INP_LOCK_DESTROY(inp) mtx_destroy(&(inp)->inp_mtx)
#define INP_LOCK(inp) mtx_lock(&(inp)->inp_mtx)
#define INP_UNLOCK(inp) mtx_unlock(&(inp)->inp_mtx)
#define INP_LOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_OWNED)
#define INP_UNLOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_NOTOWNED)
#define INP_INFO_LOCK_INIT(ipi, d) \
mtx_init(&(ipi)->ipi_mtx, (d), NULL, MTX_DEF | MTX_RECURSE)
#define INP_INFO_LOCK_DESTROY(ipi) mtx_destroy(&(ipi)->ipi_mtx)
#define INP_INFO_RLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
#define INP_INFO_WLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
#define INP_INFO_RUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
#define INP_INFO_WUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
#define INP_INFO_RLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED)
#define INP_INFO_WLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED)
#define INP_INFO_UNLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_NOTOWNED)
#define INP_PCBHASH(faddr, lport, fport, mask) \
(((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
#define INP_PCBPORTHASH(lport, mask) \
(ntohs((lport)) & (mask))
/* flags in inp_flags: */
#define INP_RECVOPTS 0x01 /* receive incoming IP options */
#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
#define INP_HDRINCL 0x08 /* user supplies entire IP header */
#define INP_HIGHPORT 0x10 /* user wants "high" port binding */
#define INP_LOWPORT 0x20 /* user wants "low" port binding */
#define INP_ANONPORT 0x40 /* port chosen for user */
#define INP_RECVIF 0x80 /* receive incoming interface */
#define INP_MTUDISC 0x100 /* user can do MTU discovery */
#define INP_FAITH 0x200 /* accept FAITH'ed connections */
#define INP_RECVTTL 0x400 /* receive incoming IP TTL */
#define INP_DONTFRAG 0x800 /* don't fragment packet */
#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
#define IN6P_RTHDR 0x100000 /* receive routing header */
#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
#define IN6P_TCLASS 0x400000 /* receive traffic class value */
#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */
#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
#define IN6P_MTU 0x80000000 /* receive path MTU */
#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
INP_RECVIF|INP_RECVTTL|\
IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
IN6P_MTU)
#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
/* for KAME src sync over BSD*'s */
#define IN6P_HIGHPORT INP_HIGHPORT
#define IN6P_LOWPORT INP_LOWPORT
#define IN6P_ANONPORT INP_ANONPORT
#define IN6P_RECVIF INP_RECVIF
#define IN6P_MTUDISC INP_MTUDISC
#define IN6P_FAITH INP_FAITH
#define IN6P_CONTROLOPTS INP_CONTROLOPTS
/*
* socket AF version is {newer than,or include}
* actual datagram AF version
*/
#define INPLOOKUP_WILDCARD 1
#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af)
extern int ipport_reservedhigh;
extern int ipport_reservedlow;
extern int ipport_lowfirstauto;
extern int ipport_lowlastauto;
extern int ipport_firstauto;
extern int ipport_lastauto;
extern int ipport_hifirstauto;
extern int ipport_hilastauto;
extern struct callout ipport_tick_callout;
void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
int in_pcballoc(struct socket *, struct inpcbinfo *);
int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
void in_pcbdetach(struct inpcb *);
void in_pcbdisconnect(struct inpcb *);
void in_pcbdrop(struct inpcb *);
void in_pcbfree(struct inpcb *);
int in_pcbinshash(struct inpcb *);
struct inpcb *
in_pcblookup_local(struct inpcbinfo *,
struct in_addr, u_int, int);
struct inpcb *
in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int,
struct in_addr, u_int, int, struct ifnet *);
void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr,
int, struct inpcb *(*)(struct inpcb *, int));
void in_pcbrehash(struct inpcb *);
void in_pcbsetsolabel(struct socket *so);
int in_getpeeraddr(struct socket *so, struct sockaddr **nam);
int in_getsockaddr(struct socket *so, struct sockaddr **nam);
void in_pcbsosetlabel(struct socket *so);
void in_pcbremlists(struct inpcb *inp);
void ipport_tick(void *xtp);
/*
* Debugging routines compiled in when DDB is present.
*/
void db_print_inpcb(struct inpcb *inp, const char *name, int indent);
#endif /* !_NETINET_IN_PCB_H_ */

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/*-
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*-
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _USER_IP6_VAR_H_
#define _USER_IP6_VAR_H_
#if defined(_WIN32)
struct ip6_hdr {
union {
struct ip6_hdrctl {
uint32_t ip6_un1_flow; /* 20 bits of flow-ID */
uint16_t ip6_un1_plen; /* payload length */
uint8_t ip6_un1_nxt; /* next header */
uint8_t ip6_un1_hlim; /* hop limit */
} ip6_un1;
uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits class */
} ip6_ctlun;
struct in6_addr ip6_src; /* source address */
struct in6_addr ip6_dst; /* destination address */
};
#define ip6_vfc ip6_ctlun.ip6_un2_vfc
#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
#define IPV6_VERSION 0x60
#endif
#if defined(_WIN32)
#define s6_addr16 u.Word
#endif
#if !defined(_WIN32)
#if !defined(__linux__)
#define s6_addr8 __u6_addr.__u6_addr8
#define s6_addr16 __u6_addr.__u6_addr16
#define s6_addr32 __u6_addr.__u6_addr32
#endif
#endif
#if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__DragonFly__)
struct route_in6 {
struct rtentry *ro_rt;
struct llentry *ro_lle;
struct in6_addr *ro_ia6;
int ro_flags;
struct sockaddr_in6 ro_dst;
};
#endif
#define IP6_EXTHDR_GET(val, typ, m, off, len) \
do { \
struct mbuf *t; \
int tmp; \
if ((m)->m_len >= (off) + (len)) \
(val) = (typ)(mtod((m), caddr_t) + (off)); \
else { \
t = m_pulldown((m), (off), (len), &tmp); \
if (t) { \
KASSERT(t->m_len >= tmp + (len), \
("m_pulldown malfunction")); \
(val) = (typ)(mtod(t, caddr_t) + tmp); \
} else { \
(val) = (typ)NULL; \
(m) = NULL; \
} \
} \
} while (0)
#endif /* !_USER_IP6_VAR_H_ */

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/*-
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _USER_IP_ICMP_H_
#define _USER_IP_ICMP_H_
/*
* Interface Control Message Protocol Definitions.
* Per RFC 792, September 1981.
*/
/*
* Internal of an ICMP Router Advertisement
*/
struct icmp_ra_addr {
uint32_t ira_addr;
uint32_t ira_preference;
};
/*
* Structure of an icmp header.
*/
struct icmphdr {
u_char icmp_type; /* type of message, see below */
u_char icmp_code; /* type sub code */
u_short icmp_cksum; /* ones complement cksum of struct */
};
#if defined(_WIN32)
#pragma pack (push, 1)
struct icmp6_hdr {
uint8_t icmp6_type;
uint8_t icmp6_code;
uint16_t icmp6_cksum;
union {
uint32_t icmp6_un_data32[1];
uint16_t icmp6_un_data16[2];
uint8_t icmp6_un_data8[4];
} icmp6_dataun;
};
#pragma pack(pop)
#define icmp6_data32 icmp6_dataun.icmp6_un_data32
#define icmp6_mtu icmp6_data32[0]
#endif
/*
* Structure of an icmp packet.
*
* XXX: should start with a struct icmphdr.
*/
struct icmp {
u_char icmp_type; /* type of message, see below */
u_char icmp_code; /* type sub code */
u_short icmp_cksum; /* ones complement cksum of struct */
union {
u_char ih_pptr; /* ICMP_PARAMPROB */
struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
struct ih_idseq {
uint16_t icd_id; /* network format */
uint16_t icd_seq; /* network format */
} ih_idseq;
int ih_void;
/* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
struct ih_pmtu {
uint16_t ipm_void; /* network format */
uint16_t ipm_nextmtu; /* network format */
} ih_pmtu;
struct ih_rtradv {
u_char irt_num_addrs;
u_char irt_wpa;
uint16_t irt_lifetime;
} ih_rtradv;
} icmp_hun;
#define icmp_pptr icmp_hun.ih_pptr
#define icmp_gwaddr icmp_hun.ih_gwaddr
#define icmp_id icmp_hun.ih_idseq.icd_id
#define icmp_seq icmp_hun.ih_idseq.icd_seq
#define icmp_void icmp_hun.ih_void
#define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
#define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
#define icmp_num_addrs icmp_hun.ih_rtradv.irt_num_addrs
#define icmp_wpa icmp_hun.ih_rtradv.irt_wpa
#define icmp_lifetime icmp_hun.ih_rtradv.irt_lifetime
union {
struct id_ts { /* ICMP Timestamp */
/*
* The next 3 fields are in network format,
* milliseconds since 00:00 GMT
*/
uint32_t its_otime; /* Originate */
uint32_t its_rtime; /* Receive */
uint32_t its_ttime; /* Transmit */
} id_ts;
struct id_ip {
struct ip idi_ip;
/* options and then 64 bits of data */
} id_ip;
struct icmp_ra_addr id_radv;
uint32_t id_mask;
char id_data[1];
} icmp_dun;
#define icmp_otime icmp_dun.id_ts.its_otime
#define icmp_rtime icmp_dun.id_ts.its_rtime
#define icmp_ttime icmp_dun.id_ts.its_ttime
#define icmp_ip icmp_dun.id_ip.idi_ip
#define icmp_radv icmp_dun.id_radv
#define icmp_mask icmp_dun.id_mask
#define icmp_data icmp_dun.id_data
};
/*
* Lower bounds on packet lengths for various types.
* For the error advice packets must first insure that the
* packet is large enough to contain the returned ip header.
* Only then can we do the check to see if 64 bits of packet
* data have been returned, since we need to check the returned
* ip header length.
*/
#define ICMP_MINLEN 8 /* abs minimum */
#define ICMP_TSLEN (8 + 3 * sizeof (uint32_t)) /* timestamp */
#define ICMP_MASKLEN 12 /* address mask */
#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
#define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
/* N.B.: must separately check that ip_hl >= 5 */
/*
* Definition of type and code field values.
*/
#define ICMP_ECHOREPLY 0 /* echo reply */
#define ICMP_UNREACH 3 /* dest unreachable, codes: */
#define ICMP_UNREACH_NET 0 /* bad net */
#define ICMP_UNREACH_HOST 1 /* bad host */
#define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
#define ICMP_UNREACH_PORT 3 /* bad port */
#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
#define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
#define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
#define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
#define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
#define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
#define ICMP_UNREACH_FILTER_PROHIB 13 /* admin prohib */
#define ICMP_UNREACH_HOST_PRECEDENCE 14 /* host prec vio. */
#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* prec cutoff */
#define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
#define ICMP_REDIRECT 5 /* shorter route, codes: */
#define ICMP_REDIRECT_NET 0 /* for network */
#define ICMP_REDIRECT_HOST 1 /* for host */
#define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
#define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
#define ICMP_ALTHOSTADDR 6 /* alternate host address */
#define ICMP_ECHO 8 /* echo service */
#define ICMP_ROUTERADVERT 9 /* router advertisement */
#define ICMP_ROUTERADVERT_NORMAL 0 /* normal advertisement */
#define ICMP_ROUTERADVERT_NOROUTE_COMMON 16 /* selective routing */
#define ICMP_ROUTERSOLICIT 10 /* router solicitation */
#define ICMP_TIMXCEED 11 /* time exceeded, code: */
#define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
#define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
#define ICMP_PARAMPROB 12 /* ip header bad */
#define ICMP_PARAMPROB_ERRATPTR 0 /* error at param ptr */
#define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
#define ICMP_PARAMPROB_LENGTH 2 /* bad length */
#define ICMP_TSTAMP 13 /* timestamp request */
#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
#define ICMP_IREQ 15 /* information request */
#define ICMP_IREQREPLY 16 /* information reply */
#define ICMP_MASKREQ 17 /* address mask request */
#define ICMP_MASKREPLY 18 /* address mask reply */
#define ICMP_TRACEROUTE 30 /* traceroute */
#define ICMP_DATACONVERR 31 /* data conversion error */
#define ICMP_MOBILE_REDIRECT 32 /* mobile host redirect */
#define ICMP_IPV6_WHEREAREYOU 33 /* IPv6 where-are-you */
#define ICMP_IPV6_IAMHERE 34 /* IPv6 i-am-here */
#define ICMP_MOBILE_REGREQUEST 35 /* mobile registration req */
#define ICMP_MOBILE_REGREPLY 36 /* mobile registration reply */
#define ICMP_SKIP 39 /* SKIP */
#define ICMP_PHOTURIS 40 /* Photuris */
#define ICMP_PHOTURIS_UNKNOWN_INDEX 1 /* unknown sec index */
#define ICMP_PHOTURIS_AUTH_FAILED 2 /* auth failed */
#define ICMP_PHOTURIS_DECRYPT_FAILED 3 /* decrypt failed */
#define ICMP_MAXTYPE 40
#define ICMP_INFOTYPE(type) \
((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
(type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
#endif

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/*-
* Copyright (c) 1987, 1993
* The Regents of the University of California.
* Copyright (c) 2005 Robert N. M. Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/* This file has been renamed user_malloc.h for Userspace */
#ifndef _USER_MALLOC_H_
#define _USER_MALLOC_H_
/*__Userspace__*/
#include <stdlib.h>
#include <sys/types.h>
#if !defined(_WIN32)
#include <strings.h>
#include <stdint.h>
#else
#if (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ >= 1400)
#include <stdint.h>
#elif defined(SCTP_STDINT_INCLUDE)
#include SCTP_STDINT_INCLUDE
#else
#define uint32_t unsigned __int32
#define uint64_t unsigned __int64
#endif
#include <winsock2.h>
#endif
#define MINALLOCSIZE UMA_SMALLEST_UNIT
/*
* flags to malloc.
*/
#define M_NOWAIT 0x0001 /* do not block */
#define M_WAITOK 0x0002 /* ok to block */
#define M_ZERO 0x0100 /* bzero the allocation */
#define M_NOVM 0x0200 /* don't ask VM for pages */
#define M_USE_RESERVE 0x0400 /* can alloc out of reserve memory */
#define M_MAGIC 877983977 /* time when first defined :-) */
/*
* Two malloc type structures are present: malloc_type, which is used by a
* type owner to declare the type, and malloc_type_internal, which holds
* malloc-owned statistics and other ABI-sensitive fields, such as the set of
* malloc statistics indexed by the compile-time MAXCPU constant.
* Applications should avoid introducing dependence on the allocator private
* data layout and size.
*
* The malloc_type ks_next field is protected by malloc_mtx. Other fields in
* malloc_type are static after initialization so unsynchronized.
*
* Statistics in malloc_type_stats are written only when holding a critical
* section and running on the CPU associated with the index into the stat
* array, but read lock-free resulting in possible (minor) races, which the
* monitoring app should take into account.
*/
struct malloc_type_stats {
uint64_t mts_memalloced; /* Bytes allocated on CPU. */
uint64_t mts_memfreed; /* Bytes freed on CPU. */
uint64_t mts_numallocs; /* Number of allocates on CPU. */
uint64_t mts_numfrees; /* number of frees on CPU. */
uint64_t mts_size; /* Bitmask of sizes allocated on CPU. */
uint64_t _mts_reserved1; /* Reserved field. */
uint64_t _mts_reserved2; /* Reserved field. */
uint64_t _mts_reserved3; /* Reserved field. */
};
#ifndef MAXCPU /* necessary on Linux */
#define MAXCPU 4 /* arbitrary? */
#endif
struct malloc_type_internal {
struct malloc_type_stats mti_stats[MAXCPU];
};
/*
* ABI-compatible version of the old 'struct malloc_type', only all stats are
* now malloc-managed in malloc-owned memory rather than in caller memory, so
* as to avoid ABI issues. The ks_next pointer is reused as a pointer to the
* internal data handle.
*/
struct malloc_type {
struct malloc_type *ks_next; /* Next in global chain. */
u_long _ks_memuse; /* No longer used. */
u_long _ks_size; /* No longer used. */
u_long _ks_inuse; /* No longer used. */
uint64_t _ks_calls; /* No longer used. */
u_long _ks_maxused; /* No longer used. */
u_long ks_magic; /* Detect programmer error. */
const char *ks_shortdesc; /* Printable type name. */
/*
* struct malloc_type was terminated with a struct mtx, which is no
* longer required. For ABI reasons, continue to flesh out the full
* size of the old structure, but reuse the _lo_class field for our
* internal data handle.
*/
void *ks_handle; /* Priv. data, was lo_class. */
const char *_lo_name;
const char *_lo_type;
u_int _lo_flags;
void *_lo_list_next;
struct witness *_lo_witness;
uintptr_t _mtx_lock;
u_int _mtx_recurse;
};
/*
* Statistics structure headers for user space. The kern.malloc sysctl
* exposes a structure stream consisting of a stream header, then a series of
* malloc type headers and statistics structures (quantity maxcpus). For
* convenience, the kernel will provide the current value of maxcpus at the
* head of the stream.
*/
#define MALLOC_TYPE_STREAM_VERSION 0x00000001
struct malloc_type_stream_header {
uint32_t mtsh_version; /* Stream format version. */
uint32_t mtsh_maxcpus; /* Value of MAXCPU for stream. */
uint32_t mtsh_count; /* Number of records. */
uint32_t _mtsh_pad; /* Pad/reserved field. */
};
#define MALLOC_MAX_NAME 32
struct malloc_type_header {
char mth_name[MALLOC_MAX_NAME];
};
/* __Userspace__
Notice that at places it uses ifdef _KERNEL. That line cannot be
removed because it causes conflicts with malloc definition in
/usr/include/malloc.h, which essentially says that malloc.h has
been overridden by stdlib.h. We will need to use names like
user_malloc.h for isolating kernel interface headers. using
original names like malloc.h in a user_include header can be
confusing, All userspace header files are being placed in ./user_include
Better still to remove from user_include.h all irrelevant code such
as that in the block starting with #ifdef _KERNEL. I am only leaving
it in for the time being to see what functionality is in this file
that kernel uses.
Start copy: Copied code for __Userspace__ */
#define MALLOC_DEFINE(type, shortdesc, longdesc) \
struct malloc_type type[1] = { \
{ NULL, 0, 0, 0, 0, 0, M_MAGIC, shortdesc, NULL, NULL, \
NULL, 0, NULL, NULL, 0, 0 } \
}
/* Removed "extern" in __Userspace__ code */
/* If we need to use MALLOC_DECLARE before using MALLOC then
we have to remove extern.
In /usr/include/sys/malloc.h there is this definition:
#define MALLOC_DECLARE(type) \
extern struct malloc_type type[1]
and loader is unable to find the extern malloc_type because
it may be defined in one of kernel object files.
It seems that MALLOC_DECLARE and MALLOC_DEFINE cannot be used at
the same time for same "type" variable. Also, in Randall's architecture
document, where it specifies O/S specific macros and functions, it says
that the name in SCTP_MALLOC does not have to be used.
*/
#define MALLOC_DECLARE(type) \
extern struct malloc_type type[1]
#define FREE(addr, type) free((addr))
/* changed definitions of MALLOC and FREE */
/* Using memset if flag M_ZERO is specified. Todo: M_WAITOK and M_NOWAIT */
#define MALLOC(space, cast, size, type, flags) \
((space) = (cast)malloc((u_long)(size))); \
do { \
if (flags & M_ZERO) { \
memset(space,0,size); \
} \
} while (0);
#endif /* !_SYS_MALLOC_H_ */

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/*-
* Copyright (c) 1982, 1986, 1988, 1993
* The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _USER_MBUF_H_
#define _USER_MBUF_H_
/* __Userspace__ header file for mbufs */
#include <stdio.h>
#if !defined(SCTP_SIMPLE_ALLOCATOR)
#include "umem.h"
#endif
#include "user_malloc.h"
#include "netinet/sctp_os_userspace.h"
#define USING_MBUF_CONSTRUCTOR 0
/* For Linux */
#ifndef MSIZE
#define MSIZE 256
/* #define MSIZE 1024 */
#endif
#ifndef MCLBYTES
#define MCLBYTES 2048
#endif
struct mbuf * m_gethdr(int how, short type);
struct mbuf * m_get(int how, short type);
struct mbuf * m_free(struct mbuf *m);
void m_clget(struct mbuf *m, int how);
struct mbuf * m_getm2(struct mbuf *m, int len, int how, short type, int flags, int allonebuf);
struct mbuf *m_uiotombuf(struct uio *uio, int how, int len, int align, int flags);
u_int m_length(struct mbuf *m0, struct mbuf **last);
struct mbuf *m_last(struct mbuf *m);
/* mbuf initialization function */
void mbuf_initialize(void *);
#define M_MOVE_PKTHDR(to, from) m_move_pkthdr((to), (from))
#define MGET(m, how, type) ((m) = m_get((how), (type)))
#define MGETHDR(m, how, type) ((m) = m_gethdr((how), (type)))
#define MCLGET(m, how) m_clget((m), (how))
#define M_HDR_PAD ((sizeof(intptr_t)==4) ? 2 : 6) /* modified for __Userspace__ */
/* Length to m_copy to copy all. */
#define M_COPYALL 1000000000
/* umem_cache_t is defined in user_include/umem.h as
* typedef struct umem_cache umem_cache_t;
* Note:umem_zone_t is a pointer.
*/
#if defined(SCTP_SIMPLE_ALLOCATOR)
typedef size_t sctp_zone_t;
#else
typedef umem_cache_t *sctp_zone_t;
#endif
extern sctp_zone_t zone_mbuf;
extern sctp_zone_t zone_clust;
extern sctp_zone_t zone_ext_refcnt;
/*-
* Macros for type conversion:
* mtod(m, t) -- Convert mbuf pointer to data pointer of correct type.
* dtom(x) -- Convert data pointer within mbuf to mbuf pointer (XXX).
*/
#define mtod(m, t) ((t)((m)->m_data))
#define dtom(x) ((struct mbuf *)((intptr_t)(x) & ~(MSIZE-1)))
struct mb_args {
int flags; /* Flags for mbuf being allocated */
short type; /* Type of mbuf being allocated */
};
struct clust_args {
struct mbuf * parent_mbuf;
};
struct mbuf * m_split(struct mbuf *, int, int);
void m_cat(struct mbuf *m, struct mbuf *n);
void m_adj(struct mbuf *, int);
void mb_free_ext(struct mbuf *);
void m_freem(struct mbuf *);
struct m_tag *m_tag_alloc(uint32_t, int, int, int);
struct mbuf *m_copym(struct mbuf *, int, int, int);
void m_copyback(struct mbuf *, int, int, caddr_t);
struct mbuf *m_pullup(struct mbuf *, int);
struct mbuf *m_pulldown(struct mbuf *, int off, int len, int *offp);
int m_dup_pkthdr(struct mbuf *, struct mbuf *, int);
struct m_tag *m_tag_copy(struct m_tag *, int);
int m_tag_copy_chain(struct mbuf *, struct mbuf *, int);
struct mbuf *m_prepend(struct mbuf *, int, int);
void m_copydata(const struct mbuf *, int, int, caddr_t);
#define MBUF_MEM_NAME "mbuf"
#define MBUF_CLUSTER_MEM_NAME "mbuf_cluster"
#define MBUF_EXTREFCNT_MEM_NAME "mbuf_ext_refcnt"
#define MT_NOINIT 255 /* Not a type but a flag to allocate
a non-initialized mbuf */
/*
* Mbufs are of a single size, MSIZE (sys/param.h), which includes overhead.
* An mbuf may add a single "mbuf cluster" of size MCLBYTES (also in
* sys/param.h), which has no additional overhead and is used instead of the
* internal data area; this is done when at least MINCLSIZE of data must be
* stored. Additionally, it is possible to allocate a separate buffer
* externally and attach it to the mbuf in a way similar to that of mbuf
* clusters.
*/
#define MLEN ((int)(MSIZE - sizeof(struct m_hdr))) /* normal data len */
#define MHLEN ((int)(MLEN - sizeof(struct pkthdr))) /* data len w/pkthdr */
#define MINCLSIZE ((int)(MHLEN + 1)) /* smallest amount to put in cluster */
#define M_MAXCOMPRESS (MHLEN / 2) /* max amount to copy for compression */
/*
* Header present at the beginning of every mbuf.
*/
struct m_hdr {
struct mbuf *mh_next; /* next buffer in chain */
struct mbuf *mh_nextpkt; /* next chain in queue/record */
caddr_t mh_data; /* location of data */
int mh_len; /* amount of data in this mbuf */
int mh_flags; /* flags; see below */
short mh_type; /* type of data in this mbuf */
uint8_t pad[M_HDR_PAD];/* word align */
};
/*
* Packet tag structure (see below for details).
*/
struct m_tag {
SLIST_ENTRY(m_tag) m_tag_link; /* List of packet tags */
uint16_t m_tag_id; /* Tag ID */
uint16_t m_tag_len; /* Length of data */
uint32_t m_tag_cookie; /* ABI/Module ID */
void (*m_tag_free)(struct m_tag *);
};
/*
* Record/packet header in first mbuf of chain; valid only if M_PKTHDR is set.
*/
struct pkthdr {
struct ifnet *rcvif; /* rcv interface */
/* variables for ip and tcp reassembly */
void *header; /* pointer to packet header */
int len; /* total packet length */
/* variables for hardware checksum */
int csum_flags; /* flags regarding checksum */
int csum_data; /* data field used by csum routines */
uint16_t tso_segsz; /* TSO segment size */
uint16_t ether_vtag; /* Ethernet 802.1p+q vlan tag */
SLIST_HEAD(packet_tags, m_tag) tags; /* list of packet tags */
};
/*
* Description of external storage mapped into mbuf; valid only if M_EXT is
* set.
*/
struct m_ext {
caddr_t ext_buf; /* start of buffer */
void (*ext_free) /* free routine if not the usual */
(void *, void *);
void *ext_args; /* optional argument pointer */
u_int ext_size; /* size of buffer, for ext_free */
volatile u_int *ref_cnt; /* pointer to ref count info */
int ext_type; /* type of external storage */
};
/*
* The core of the mbuf object along with some shortcut defined for practical
* purposes.
*/
struct mbuf {
struct m_hdr m_hdr;
union {
struct {
struct pkthdr MH_pkthdr; /* M_PKTHDR set */
union {
struct m_ext MH_ext; /* M_EXT set */
char MH_databuf[MHLEN];
} MH_dat;
} MH;
char M_databuf[MLEN]; /* !M_PKTHDR, !M_EXT */
} M_dat;
};
#define m_next m_hdr.mh_next
#define m_len m_hdr.mh_len
#define m_data m_hdr.mh_data
#define m_type m_hdr.mh_type
#define m_flags m_hdr.mh_flags
#define m_nextpkt m_hdr.mh_nextpkt
#define m_act m_nextpkt
#define m_pkthdr M_dat.MH.MH_pkthdr
#define m_ext M_dat.MH.MH_dat.MH_ext
#define m_pktdat M_dat.MH.MH_dat.MH_databuf
#define m_dat M_dat.M_databuf
/*
* mbuf flags.
*/
#define M_EXT 0x0001 /* has associated external storage */
#define M_PKTHDR 0x0002 /* start of record */
#define M_EOR 0x0004 /* end of record */
#define M_RDONLY 0x0008 /* associated data is marked read-only */
#define M_PROTO1 0x0010 /* protocol-specific */
#define M_PROTO2 0x0020 /* protocol-specific */
#define M_PROTO3 0x0040 /* protocol-specific */
#define M_PROTO4 0x0080 /* protocol-specific */
#define M_PROTO5 0x0100 /* protocol-specific */
#define M_FREELIST 0x8000 /* mbuf is on the free list */
/*
* Flags copied when copying m_pkthdr.
*/
#define M_COPYFLAGS (M_PKTHDR|M_EOR|M_RDONLY|M_PROTO1|M_PROTO1|M_PROTO2|\
M_PROTO3|M_PROTO4|M_PROTO5|\
M_BCAST|M_MCAST|M_FRAG|M_FIRSTFRAG|M_LASTFRAG|\
M_VLANTAG|M_PROMISC)
/*
* mbuf pkthdr flags (also stored in m_flags).
*/
#define M_BCAST 0x0200 /* send/received as link-level broadcast */
#define M_MCAST 0x0400 /* send/received as link-level multicast */
#define M_FRAG 0x0800 /* packet is a fragment of a larger packet */
#define M_FIRSTFRAG 0x1000 /* packet is first fragment */
#define M_LASTFRAG 0x2000 /* packet is last fragment */
#define M_VLANTAG 0x10000 /* ether_vtag is valid */
#define M_PROMISC 0x20000 /* packet was not for us */
#define M_NOFREE 0x40000 /* do not free mbuf - it is embedded in the cluster */
/*
* External buffer types: identify ext_buf type.
*/
#define EXT_CLUSTER 1 /* mbuf cluster */
#define EXT_SFBUF 2 /* sendfile(2)'s sf_bufs */
#define EXT_JUMBOP 3 /* jumbo cluster 4096 bytes */
#define EXT_JUMBO9 4 /* jumbo cluster 9216 bytes */
#define EXT_JUMBO16 5 /* jumbo cluster 16184 bytes */
#define EXT_PACKET 6 /* mbuf+cluster from packet zone */
#define EXT_MBUF 7 /* external mbuf reference (M_IOVEC) */
#define EXT_NET_DRV 100 /* custom ext_buf provided by net driver(s) */
#define EXT_MOD_TYPE 200 /* custom module's ext_buf type */
#define EXT_DISPOSABLE 300 /* can throw this buffer away w/page flipping */
#define EXT_EXTREF 400 /* has externally maintained ref_cnt ptr */
/*
* mbuf types.
*/
#define MT_NOTMBUF 0 /* USED INTERNALLY ONLY! Object is not mbuf */
#define MT_DATA 1 /* dynamic (data) allocation */
#define MT_HEADER MT_DATA /* packet header, use M_PKTHDR instead */
#define MT_SONAME 8 /* socket name */
#define MT_CONTROL 14 /* extra-data protocol message */
#define MT_OOBDATA 15 /* expedited data */
#define MT_NTYPES 16 /* number of mbuf types for mbtypes[] */
#define MT_NOINIT 255 /* Not a type but a flag to allocate
a non-initialized mbuf */
/*
* __Userspace__ flags like M_NOWAIT are defined in malloc.h
* Flags like these are used in functions like uma_zalloc()
* but don't have an equivalent in userland umem
* Flags specifying how an allocation should be made.
*
* The flag to use is as follows:
* - M_DONTWAIT or M_NOWAIT from an interrupt handler to not block allocation.
* - M_WAIT or M_WAITOK or M_TRYWAIT from wherever it is safe to block.
*
* M_DONTWAIT/M_NOWAIT means that we will not block the thread explicitly and
* if we cannot allocate immediately we may return NULL, whereas
* M_WAIT/M_WAITOK/M_TRYWAIT means that if we cannot allocate resources we
* will block until they are available, and thus never return NULL.
*
* XXX Eventually just phase this out to use M_WAITOK/M_NOWAIT.
*/
#define MBTOM(how) (how)
void m_tag_delete(struct mbuf *, struct m_tag *);
void m_tag_delete_chain(struct mbuf *, struct m_tag *);
void m_move_pkthdr(struct mbuf *, struct mbuf *);
void m_tag_free_default(struct m_tag *);
extern int max_linkhdr; /* Largest link-level header */
extern int max_protohdr; /* Size of largest protocol layer header. See user_mbuf.c */
/*
* Evaluate TRUE if it's safe to write to the mbuf m's data region (this can
* be both the local data payload, or an external buffer area, depending on
* whether M_EXT is set).
*/
#define M_WRITABLE(m) (!((m)->m_flags & M_RDONLY) && \
(!(((m)->m_flags & M_EXT)) || \
(*((m)->m_ext.ref_cnt) == 1)) ) \
/*
* Compute the amount of space available before the current start of data in
* an mbuf.
*
* The M_WRITABLE() is a temporary, conservative safety measure: the burden
* of checking writability of the mbuf data area rests solely with the caller.
*/
#define M_LEADINGSPACE(m) \
(((m)->m_flags & M_EXT) ? \
(M_WRITABLE(m) ? (m)->m_data - (m)->m_ext.ext_buf : 0): \
((m)->m_flags & M_PKTHDR)? (m)->m_data - (m)->m_pktdat : \
(m)->m_data - (m)->m_dat)
/*
* Compute the amount of space available after the end of data in an mbuf.
*
* The M_WRITABLE() is a temporary, conservative safety measure: the burden
* of checking writability of the mbuf data area rests solely with the caller.
*/
#define M_TRAILINGSPACE(m) \
(((m)->m_flags & M_EXT) ? \
(M_WRITABLE(m) ? (m)->m_ext.ext_buf + (m)->m_ext.ext_size \
- ((m)->m_data + (m)->m_len) : 0) : \
&(m)->m_dat[MLEN] - ((m)->m_data + (m)->m_len))
/*
* Arrange to prepend space of size plen to mbuf m. If a new mbuf must be
* allocated, how specifies whether to wait. If the allocation fails, the
* original mbuf chain is freed and m is set to NULL.
*/
#define M_PREPEND(m, plen, how) do { \
struct mbuf **_mmp = &(m); \
struct mbuf *_mm = *_mmp; \
int _mplen = (plen); \
int __mhow = (how); \
\
if (M_LEADINGSPACE(_mm) >= _mplen) { \
_mm->m_data -= _mplen; \
_mm->m_len += _mplen; \
} else \
_mm = m_prepend(_mm, _mplen, __mhow); \
if (_mm != NULL && _mm->m_flags & M_PKTHDR) \
_mm->m_pkthdr.len += _mplen; \
*_mmp = _mm; \
} while (0)
/*
* Set the m_data pointer of a newly-allocated mbuf (m_get/MGET) to place an
* object of the specified size at the end of the mbuf, longword aligned.
*/
#define M_ALIGN(m, len) do { \
KASSERT(!((m)->m_flags & (M_PKTHDR|M_EXT)), \
("%s: M_ALIGN not normal mbuf", __func__)); \
KASSERT((m)->m_data == (m)->m_dat, \
("%s: M_ALIGN not a virgin mbuf", __func__)); \
(m)->m_data += (MLEN - (len)) & ~(sizeof(long) - 1); \
} while (0)
/*
* As above, for mbufs allocated with m_gethdr/MGETHDR or initialized by
* M_DUP/MOVE_PKTHDR.
*/
#define MH_ALIGN(m, len) do { \
KASSERT((m)->m_flags & M_PKTHDR && !((m)->m_flags & M_EXT), \
("%s: MH_ALIGN not PKTHDR mbuf", __func__)); \
KASSERT((m)->m_data == (m)->m_pktdat, \
("%s: MH_ALIGN not a virgin mbuf", __func__)); \
(m)->m_data += (MHLEN - (len)) & ~(sizeof(long) - 1); \
} while (0)
#define M_SIZE(m) \
(((m)->m_flags & M_EXT) ? (m)->m_ext.ext_size : \
((m)->m_flags & M_PKTHDR) ? MHLEN : \
MLEN)
#endif

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@ -0,0 +1,639 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _USER_QUEUE_H_
#define _USER_QUEUE_H_
/*
* This file defines four types of data structures: singly-linked lists,
* singly-linked tail queues, lists and tail queues.
*
* A singly-linked list is headed by a single forward pointer. The elements
* are singly linked for minimum space and pointer manipulation overhead at
* the expense of O(n) removal for arbitrary elements. New elements can be
* added to the list after an existing element or at the head of the list.
* Elements being removed from the head of the list should use the explicit
* macro for this purpose for optimum efficiency. A singly-linked list may
* only be traversed in the forward direction. Singly-linked lists are ideal
* for applications with large datasets and few or no removals or for
* implementing a LIFO queue.
*
* A singly-linked tail queue is headed by a pair of pointers, one to the
* head of the list and the other to the tail of the list. The elements are
* singly linked for minimum space and pointer manipulation overhead at the
* expense of O(n) removal for arbitrary elements. New elements can be added
* to the list after an existing element, at the head of the list, or at the
* end of the list. Elements being removed from the head of the tail queue
* should use the explicit macro for this purpose for optimum efficiency.
* A singly-linked tail queue may only be traversed in the forward direction.
* Singly-linked tail queues are ideal for applications with large datasets
* and few or no removals or for implementing a FIFO queue.
*
* A list is headed by a single forward pointer (or an array of forward
* pointers for a hash table header). The elements are doubly linked
* so that an arbitrary element can be removed without a need to
* traverse the list. New elements can be added to the list before
* or after an existing element or at the head of the list. A list
* may only be traversed in the forward direction.
*
* A tail queue is headed by a pair of pointers, one to the head of the
* list and the other to the tail of the list. The elements are doubly
* linked so that an arbitrary element can be removed without a need to
* traverse the list. New elements can be added to the list before or
* after an existing element, at the head of the list, or at the end of
* the list. A tail queue may be traversed in either direction.
*
* For details on the use of these macros, see the queue(3) manual page.
*
*
* SLIST LIST STAILQ TAILQ
* _HEAD + + + +
* _HEAD_INITIALIZER + + + +
* _ENTRY + + + +
* _INIT + + + +
* _EMPTY + + + +
* _FIRST + + + +
* _NEXT + + + +
* _PREV - - - +
* _LAST - - + +
* _FOREACH + + + +
* _FOREACH_SAFE + + + +
* _FOREACH_REVERSE - - - +
* _FOREACH_REVERSE_SAFE - - - +
* _INSERT_HEAD + + + +
* _INSERT_BEFORE - + - +
* _INSERT_AFTER + + + +
* _INSERT_TAIL - - + +
* _CONCAT - - + +
* _REMOVE_AFTER + - + -
* _REMOVE_HEAD + - + -
* _REMOVE + + + +
* _SWAP + + + +
*
*/
#ifdef QUEUE_MACRO_DEBUG
/* Store the last 2 places the queue element or head was altered */
struct qm_trace {
char * lastfile;
int lastline;
char * prevfile;
int prevline;
};
#define TRACEBUF struct qm_trace trace;
#define TRASHIT(x) do {(x) = (void *)-1;} while (0)
#define QMD_SAVELINK(name, link) void **name = (void *)&(link)
#define QMD_TRACE_HEAD(head) do { \
(head)->trace.prevline = (head)->trace.lastline; \
(head)->trace.prevfile = (head)->trace.lastfile; \
(head)->trace.lastline = __LINE__; \
(head)->trace.lastfile = __FILE__; \
} while (0)
#define QMD_TRACE_ELEM(elem) do { \
(elem)->trace.prevline = (elem)->trace.lastline; \
(elem)->trace.prevfile = (elem)->trace.lastfile; \
(elem)->trace.lastline = __LINE__; \
(elem)->trace.lastfile = __FILE__; \
} while (0)
#else
#define QMD_TRACE_ELEM(elem)
#define QMD_TRACE_HEAD(head)
#define QMD_SAVELINK(name, link)
#define TRACEBUF
#define TRASHIT(x)
#endif /* QUEUE_MACRO_DEBUG */
/*
* Singly-linked List declarations.
*/
#define SLIST_HEAD(name, type) \
struct name { \
struct type *slh_first; /* first element */ \
}
#define SLIST_HEAD_INITIALIZER(head) \
{ NULL }
#if defined(_WIN32)
#if defined(SLIST_ENTRY)
#undef SLIST_ENTRY
#endif
#endif
#define SLIST_ENTRY(type) \
struct { \
struct type *sle_next; /* next element */ \
}
/*
* Singly-linked List functions.
*/
#define SLIST_EMPTY(head) ((head)->slh_first == NULL)
#define SLIST_FIRST(head) ((head)->slh_first)
#define SLIST_FOREACH(var, head, field) \
for ((var) = SLIST_FIRST((head)); \
(var); \
(var) = SLIST_NEXT((var), field))
#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = SLIST_FIRST((head)); \
(var) && ((tvar) = SLIST_NEXT((var), field), 1); \
(var) = (tvar))
#define SLIST_FOREACH_PREVPTR(var, varp, head, field) \
for ((varp) = &SLIST_FIRST((head)); \
((var) = *(varp)) != NULL; \
(varp) = &SLIST_NEXT((var), field))
#define SLIST_INIT(head) do { \
SLIST_FIRST((head)) = NULL; \
} while (0)
#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
SLIST_NEXT((elm), field) = SLIST_NEXT((slistelm), field); \
SLIST_NEXT((slistelm), field) = (elm); \
} while (0)
#define SLIST_INSERT_HEAD(head, elm, field) do { \
SLIST_NEXT((elm), field) = SLIST_FIRST((head)); \
SLIST_FIRST((head)) = (elm); \
} while (0)
#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
#define SLIST_REMOVE(head, elm, type, field) do { \
QMD_SAVELINK(oldnext, (elm)->field.sle_next); \
if (SLIST_FIRST((head)) == (elm)) { \
SLIST_REMOVE_HEAD((head), field); \
} \
else { \
struct type *curelm = SLIST_FIRST((head)); \
while (SLIST_NEXT(curelm, field) != (elm)) \
curelm = SLIST_NEXT(curelm, field); \
SLIST_REMOVE_AFTER(curelm, field); \
} \
TRASHIT(*oldnext); \
} while (0)
#define SLIST_REMOVE_AFTER(elm, field) do { \
SLIST_NEXT(elm, field) = \
SLIST_NEXT(SLIST_NEXT(elm, field), field); \
} while (0)
#define SLIST_REMOVE_HEAD(head, field) do { \
SLIST_FIRST((head)) = SLIST_NEXT(SLIST_FIRST((head)), field); \
} while (0)
#define SLIST_SWAP(head1, head2, type) do { \
struct type *swap_first = SLIST_FIRST(head1); \
SLIST_FIRST(head1) = SLIST_FIRST(head2); \
SLIST_FIRST(head2) = swap_first; \
} while (0)
/*
* Singly-linked Tail queue declarations.
*/
#define STAILQ_HEAD(name, type) \
struct name { \
struct type *stqh_first;/* first element */ \
struct type **stqh_last;/* addr of last next element */ \
}
#define STAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).stqh_first }
#define STAILQ_ENTRY(type) \
struct { \
struct type *stqe_next; /* next element */ \
}
/*
* Singly-linked Tail queue functions.
*/
#define STAILQ_CONCAT(head1, head2) do { \
if (!STAILQ_EMPTY((head2))) { \
*(head1)->stqh_last = (head2)->stqh_first; \
(head1)->stqh_last = (head2)->stqh_last; \
STAILQ_INIT((head2)); \
} \
} while (0)
#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
#define STAILQ_FIRST(head) ((head)->stqh_first)
#define STAILQ_FOREACH(var, head, field) \
for((var) = STAILQ_FIRST((head)); \
(var); \
(var) = STAILQ_NEXT((var), field))
#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = STAILQ_FIRST((head)); \
(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#define STAILQ_INIT(head) do { \
STAILQ_FIRST((head)) = NULL; \
(head)->stqh_last = &STAILQ_FIRST((head)); \
} while (0)
#define STAILQ_INSERT_AFTER(head, tqelm, elm, field) do { \
if ((STAILQ_NEXT((elm), field) = STAILQ_NEXT((tqelm), field)) == NULL)\
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
STAILQ_NEXT((tqelm), field) = (elm); \
} while (0)
#define STAILQ_INSERT_HEAD(head, elm, field) do { \
if ((STAILQ_NEXT((elm), field) = STAILQ_FIRST((head))) == NULL) \
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
STAILQ_FIRST((head)) = (elm); \
} while (0)
#define STAILQ_INSERT_TAIL(head, elm, field) do { \
STAILQ_NEXT((elm), field) = NULL; \
*(head)->stqh_last = (elm); \
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
} while (0)
#define STAILQ_LAST(head, type, field) \
(STAILQ_EMPTY((head)) ? \
NULL : \
((struct type *)(void *) \
((char *)((head)->stqh_last) - __offsetof(struct type, field))))
#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
#define STAILQ_REMOVE(head, elm, type, field) do { \
QMD_SAVELINK(oldnext, (elm)->field.stqe_next); \
if (STAILQ_FIRST((head)) == (elm)) { \
STAILQ_REMOVE_HEAD((head), field); \
} \
else { \
struct type *curelm = STAILQ_FIRST((head)); \
while (STAILQ_NEXT(curelm, field) != (elm)) \
curelm = STAILQ_NEXT(curelm, field); \
STAILQ_REMOVE_AFTER(head, curelm, field); \
} \
TRASHIT(*oldnext); \
} while (0)
#define STAILQ_REMOVE_AFTER(head, elm, field) do { \
if ((STAILQ_NEXT(elm, field) = \
STAILQ_NEXT(STAILQ_NEXT(elm, field), field)) == NULL) \
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
} while (0)
#define STAILQ_REMOVE_HEAD(head, field) do { \
if ((STAILQ_FIRST((head)) = \
STAILQ_NEXT(STAILQ_FIRST((head)), field)) == NULL) \
(head)->stqh_last = &STAILQ_FIRST((head)); \
} while (0)
#define STAILQ_SWAP(head1, head2, type) do { \
struct type *swap_first = STAILQ_FIRST(head1); \
struct type **swap_last = (head1)->stqh_last; \
STAILQ_FIRST(head1) = STAILQ_FIRST(head2); \
(head1)->stqh_last = (head2)->stqh_last; \
STAILQ_FIRST(head2) = swap_first; \
(head2)->stqh_last = swap_last; \
if (STAILQ_EMPTY(head1)) \
(head1)->stqh_last = &STAILQ_FIRST(head1); \
if (STAILQ_EMPTY(head2)) \
(head2)->stqh_last = &STAILQ_FIRST(head2); \
} while (0)
/*
* List declarations.
*/
#define LIST_HEAD(name, type) \
struct name { \
struct type *lh_first; /* first element */ \
}
#define LIST_HEAD_INITIALIZER(head) \
{ NULL }
#define LIST_ENTRY(type) \
struct { \
struct type *le_next; /* next element */ \
struct type **le_prev; /* address of previous next element */ \
}
/*
* List functions.
*/
#if defined(INVARIANTS)
#define QMD_LIST_CHECK_HEAD(head, field) do { \
if (LIST_FIRST((head)) != NULL && \
LIST_FIRST((head))->field.le_prev != \
&LIST_FIRST((head))) \
panic("Bad list head %p first->prev != head", (void *)(head)); \
} while (0)
#define QMD_LIST_CHECK_NEXT(elm, field) do { \
if (LIST_NEXT((elm), field) != NULL && \
LIST_NEXT((elm), field)->field.le_prev != \
&((elm)->field.le_next)) \
panic("Bad link elm %p next->prev != elm", (void *)(elm)); \
} while (0)
#define QMD_LIST_CHECK_PREV(elm, field) do { \
if (*(elm)->field.le_prev != (elm)) \
panic("Bad link elm %p prev->next != elm", (void *)(elm)); \
} while (0)
#else
#define QMD_LIST_CHECK_HEAD(head, field)
#define QMD_LIST_CHECK_NEXT(elm, field)
#define QMD_LIST_CHECK_PREV(elm, field)
#endif /* (INVARIANTS) */
#define LIST_EMPTY(head) ((head)->lh_first == NULL)
#define LIST_FIRST(head) ((head)->lh_first)
#define LIST_FOREACH(var, head, field) \
for ((var) = LIST_FIRST((head)); \
(var); \
(var) = LIST_NEXT((var), field))
#define LIST_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = LIST_FIRST((head)); \
(var) && ((tvar) = LIST_NEXT((var), field), 1); \
(var) = (tvar))
#define LIST_INIT(head) do { \
LIST_FIRST((head)) = NULL; \
} while (0)
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
QMD_LIST_CHECK_NEXT(listelm, field); \
if ((LIST_NEXT((elm), field) = LIST_NEXT((listelm), field)) != NULL)\
LIST_NEXT((listelm), field)->field.le_prev = \
&LIST_NEXT((elm), field); \
LIST_NEXT((listelm), field) = (elm); \
(elm)->field.le_prev = &LIST_NEXT((listelm), field); \
} while (0)
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
QMD_LIST_CHECK_PREV(listelm, field); \
(elm)->field.le_prev = (listelm)->field.le_prev; \
LIST_NEXT((elm), field) = (listelm); \
*(listelm)->field.le_prev = (elm); \
(listelm)->field.le_prev = &LIST_NEXT((elm), field); \
} while (0)
#define LIST_INSERT_HEAD(head, elm, field) do { \
QMD_LIST_CHECK_HEAD((head), field); \
if ((LIST_NEXT((elm), field) = LIST_FIRST((head))) != NULL) \
LIST_FIRST((head))->field.le_prev = &LIST_NEXT((elm), field);\
LIST_FIRST((head)) = (elm); \
(elm)->field.le_prev = &LIST_FIRST((head)); \
} while (0)
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
#define LIST_REMOVE(elm, field) do { \
QMD_SAVELINK(oldnext, (elm)->field.le_next); \
QMD_SAVELINK(oldprev, (elm)->field.le_prev); \
QMD_LIST_CHECK_NEXT(elm, field); \
QMD_LIST_CHECK_PREV(elm, field); \
if (LIST_NEXT((elm), field) != NULL) \
LIST_NEXT((elm), field)->field.le_prev = \
(elm)->field.le_prev; \
*(elm)->field.le_prev = LIST_NEXT((elm), field); \
TRASHIT(*oldnext); \
TRASHIT(*oldprev); \
} while (0)
#define LIST_SWAP(head1, head2, type, field) do { \
struct type *swap_tmp = LIST_FIRST((head1)); \
LIST_FIRST((head1)) = LIST_FIRST((head2)); \
LIST_FIRST((head2)) = swap_tmp; \
if ((swap_tmp = LIST_FIRST((head1))) != NULL) \
swap_tmp->field.le_prev = &LIST_FIRST((head1)); \
if ((swap_tmp = LIST_FIRST((head2))) != NULL) \
swap_tmp->field.le_prev = &LIST_FIRST((head2)); \
} while (0)
/*
* Tail queue declarations.
*/
#define TAILQ_HEAD(name, type) \
struct name { \
struct type *tqh_first; /* first element */ \
struct type **tqh_last; /* addr of last next element */ \
TRACEBUF \
}
#define TAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).tqh_first }
#define TAILQ_ENTRY(type) \
struct { \
struct type *tqe_next; /* next element */ \
struct type **tqe_prev; /* address of previous next element */ \
TRACEBUF \
}
/*
* Tail queue functions.
*/
#if defined(INVARIANTS)
#define QMD_TAILQ_CHECK_HEAD(head, field) do { \
if (!TAILQ_EMPTY(head) && \
TAILQ_FIRST((head))->field.tqe_prev != \
&TAILQ_FIRST((head))) \
panic("Bad tailq head %p first->prev != head", (void *)(head)); \
} while (0)
#define QMD_TAILQ_CHECK_TAIL(head, field) do { \
if (*(head)->tqh_last != NULL) \
panic("Bad tailq NEXT(%p->tqh_last) != NULL", (void *)(head)); \
} while (0)
#define QMD_TAILQ_CHECK_NEXT(elm, field) do { \
if (TAILQ_NEXT((elm), field) != NULL && \
TAILQ_NEXT((elm), field)->field.tqe_prev != \
&((elm)->field.tqe_next)) \
panic("Bad link elm %p next->prev != elm", (void *)(elm)); \
} while (0)
#define QMD_TAILQ_CHECK_PREV(elm, field) do { \
if (*(elm)->field.tqe_prev != (elm)) \
panic("Bad link elm %p prev->next != elm", (void *)(elm)); \
} while (0)
#else
#define QMD_TAILQ_CHECK_HEAD(head, field)
#define QMD_TAILQ_CHECK_TAIL(head, headname)
#define QMD_TAILQ_CHECK_NEXT(elm, field)
#define QMD_TAILQ_CHECK_PREV(elm, field)
#endif /* (INVARIANTS) */
#define TAILQ_CONCAT(head1, head2, field) do { \
if (!TAILQ_EMPTY(head2)) { \
*(head1)->tqh_last = (head2)->tqh_first; \
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
(head1)->tqh_last = (head2)->tqh_last; \
TAILQ_INIT((head2)); \
QMD_TRACE_HEAD(head1); \
QMD_TRACE_HEAD(head2); \
} \
} while (0)
#define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
#define TAILQ_FIRST(head) ((head)->tqh_first)
#define TAILQ_FOREACH(var, head, field) \
for ((var) = TAILQ_FIRST((head)); \
(var); \
(var) = TAILQ_NEXT((var), field))
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = TAILQ_FIRST((head)); \
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
for ((var) = TAILQ_LAST((head), headname); \
(var); \
(var) = TAILQ_PREV((var), headname, field))
#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
for ((var) = TAILQ_LAST((head), headname); \
(var) && ((tvar) = TAILQ_PREV((var), headname, field), 1); \
(var) = (tvar))
#define TAILQ_INIT(head) do { \
TAILQ_FIRST((head)) = NULL; \
(head)->tqh_last = &TAILQ_FIRST((head)); \
QMD_TRACE_HEAD(head); \
} while (0)
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
QMD_TAILQ_CHECK_NEXT(listelm, field); \
if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
TAILQ_NEXT((elm), field)->field.tqe_prev = \
&TAILQ_NEXT((elm), field); \
else { \
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
QMD_TRACE_HEAD(head); \
} \
TAILQ_NEXT((listelm), field) = (elm); \
(elm)->field.tqe_prev = &TAILQ_NEXT((listelm), field); \
QMD_TRACE_ELEM(&(elm)->field); \
QMD_TRACE_ELEM(&listelm->field); \
} while (0)
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
QMD_TAILQ_CHECK_PREV(listelm, field); \
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
TAILQ_NEXT((elm), field) = (listelm); \
*(listelm)->field.tqe_prev = (elm); \
(listelm)->field.tqe_prev = &TAILQ_NEXT((elm), field); \
QMD_TRACE_ELEM(&(elm)->field); \
QMD_TRACE_ELEM(&listelm->field); \
} while (0)
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
QMD_TAILQ_CHECK_HEAD(head, field); \
if ((TAILQ_NEXT((elm), field) = TAILQ_FIRST((head))) != NULL) \
TAILQ_FIRST((head))->field.tqe_prev = \
&TAILQ_NEXT((elm), field); \
else \
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
TAILQ_FIRST((head)) = (elm); \
(elm)->field.tqe_prev = &TAILQ_FIRST((head)); \
QMD_TRACE_HEAD(head); \
QMD_TRACE_ELEM(&(elm)->field); \
} while (0)
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
QMD_TAILQ_CHECK_TAIL(head, field); \
TAILQ_NEXT((elm), field) = NULL; \
(elm)->field.tqe_prev = (head)->tqh_last; \
*(head)->tqh_last = (elm); \
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
QMD_TRACE_HEAD(head); \
QMD_TRACE_ELEM(&(elm)->field); \
} while (0)
#define TAILQ_LAST(head, headname) \
(*(((struct headname *)((head)->tqh_last))->tqh_last))
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
#define TAILQ_PREV(elm, headname, field) \
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
#define TAILQ_REMOVE(head, elm, field) do { \
QMD_SAVELINK(oldnext, (elm)->field.tqe_next); \
QMD_SAVELINK(oldprev, (elm)->field.tqe_prev); \
QMD_TAILQ_CHECK_NEXT(elm, field); \
QMD_TAILQ_CHECK_PREV(elm, field); \
if ((TAILQ_NEXT((elm), field)) != NULL) \
TAILQ_NEXT((elm), field)->field.tqe_prev = \
(elm)->field.tqe_prev; \
else { \
(head)->tqh_last = (elm)->field.tqe_prev; \
QMD_TRACE_HEAD(head); \
} \
*(elm)->field.tqe_prev = TAILQ_NEXT((elm), field); \
TRASHIT(*oldnext); \
TRASHIT(*oldprev); \
QMD_TRACE_ELEM(&(elm)->field); \
} while (0)
#define TAILQ_SWAP(head1, head2, type, field) do { \
struct type *swap_first = (head1)->tqh_first; \
struct type **swap_last = (head1)->tqh_last; \
(head1)->tqh_first = (head2)->tqh_first; \
(head1)->tqh_last = (head2)->tqh_last; \
(head2)->tqh_first = swap_first; \
(head2)->tqh_last = swap_last; \
if ((swap_first = (head1)->tqh_first) != NULL) \
swap_first->field.tqe_prev = &(head1)->tqh_first; \
else \
(head1)->tqh_last = &(head1)->tqh_first; \
if ((swap_first = (head2)->tqh_first) != NULL) \
swap_first->field.tqe_prev = &(head2)->tqh_first; \
else \
(head2)->tqh_last = &(head2)->tqh_first; \
} while (0)
#endif /* !_SYS_QUEUE_H_ */

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/*-
* Copyright (c) 2012 Michael Tuexen
* Copyright (c) 2012 Irene Ruengeler
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USER_RECV_THREAD_H_
#define _USER_RECV_THREAD_H_
void recv_thread_init(void);
void recv_thread_destroy(void);
#endif

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/*-
* Copyright (c) 1980, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _USER_ROUTE_H_
#define _USER_ROUTE_H_
/*
* Kernel resident routing tables.
*
* The routing tables are initialized when interface addresses
* are set by making entries for all directly connected interfaces.
*/
/*
* A route consists of a destination address and a reference
* to a routing entry. These are often held by protocols
* in their control blocks, e.g. inpcb.
*/
struct sctp_route {
struct sctp_rtentry *ro_rt;
struct sockaddr ro_dst;
};
/*
* These numbers are used by reliable protocols for determining
* retransmission behavior and are included in the routing structure.
*/
struct sctp_rt_metrics_lite {
uint32_t rmx_mtu; /* MTU for this path */
#if 0
u_long rmx_expire; /* lifetime for route, e.g. redirect */
u_long rmx_pksent; /* packets sent using this route */
#endif
};
/*
* We distinguish between routes to hosts and routes to networks,
* preferring the former if available. For each route we infer
* the interface to use from the gateway address supplied when
* the route was entered. Routes that forward packets through
* gateways are marked so that the output routines know to address the
* gateway rather than the ultimate destination.
*/
struct sctp_rtentry {
#if 0
struct radix_node rt_nodes[2]; /* tree glue, and other values */
/*
* XXX struct rtentry must begin with a struct radix_node (or two!)
* because the code does some casts of a 'struct radix_node *'
* to a 'struct rtentry *'
*/
#define rt_key(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_key)))
#define rt_mask(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_mask)))
struct sockaddr *rt_gateway; /* value */
u_long rt_flags; /* up/down?, host/net */
#endif
struct ifnet *rt_ifp; /* the answer: interface to use */
struct ifaddr *rt_ifa; /* the answer: interface address to use */
struct sctp_rt_metrics_lite rt_rmx; /* metrics used by rx'ing protocols */
long rt_refcnt; /* # held references */
#if 0
struct sockaddr *rt_genmask; /* for generation of cloned routes */
caddr_t rt_llinfo; /* pointer to link level info cache */
struct rtentry *rt_gwroute; /* implied entry for gatewayed routes */
struct rtentry *rt_parent; /* cloning parent of this route */
#endif
struct mtx rt_mtx; /* mutex for routing entry */
};
#define RT_LOCK_INIT(_rt) mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF | MTX_DUPOK)
#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx)
#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx)
#define RT_LOCK_DESTROY(_rt) mtx_destroy(&(_rt)->rt_mtx)
#define RT_LOCK_ASSERT(_rt) mtx_assert(&(_rt)->rt_mtx, MA_OWNED)
#define RT_ADDREF(_rt) do { \
RT_LOCK_ASSERT(_rt); \
KASSERT((_rt)->rt_refcnt >= 0, \
("negative refcnt %ld", (_rt)->rt_refcnt)); \
(_rt)->rt_refcnt++; \
} while (0)
#define RT_REMREF(_rt) do { \
RT_LOCK_ASSERT(_rt); \
KASSERT((_rt)->rt_refcnt > 0, \
("bogus refcnt %ld", (_rt)->rt_refcnt)); \
(_rt)->rt_refcnt--; \
} while (0)
#define RTFREE_LOCKED(_rt) do { \
if ((_rt)->rt_refcnt <= 1) { \
rtfree(_rt); \
} else { \
RT_REMREF(_rt); \
RT_UNLOCK(_rt); \
} \
/* guard against invalid refs */ \
_rt = NULL; \
} while (0)
#define RTFREE(_rt) do { \
RT_LOCK(_rt); \
RTFREE_LOCKED(_rt); \
} while (0)
#endif

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/*-
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/* __Userspace__ version of <sys/socketvar.h> goes here.*/
#ifndef _USER_SOCKETVAR_H_
#define _USER_SOCKETVAR_H_
#if defined(__APPLE__)
#include <sys/types.h>
#include <unistd.h>
#endif
/* #include <sys/selinfo.h> */ /*__Userspace__ alternative?*/ /* for struct selinfo */
/* #include <sys/_lock.h> was 0 byte file */
/* #include <sys/_mutex.h> was 0 byte file */
/* #include <sys/_sx.h> */ /*__Userspace__ alternative?*/
#if !defined(__DragonFly__) && !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(_WIN32) && !defined(__native_client__)
#include <sys/uio.h>
#endif
#define SOCK_MAXADDRLEN 255
#if !defined(MSG_NOTIFICATION)
#define MSG_NOTIFICATION 0x2000 /* SCTP notification */
#endif
#define SCTP_SO_LINGER 0x0001
#define SCTP_SO_ACCEPTCONN 0x0002
#define SS_CANTRCVMORE 0x020
#define SS_CANTSENDMORE 0x010
#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(_WIN32) || defined(__native_client__)
#define UIO_MAXIOV 1024
#define ERESTART (-1)
#endif
#if !defined(__APPLE__) && !defined(__NetBSD__) && !defined(__OpenBSD__)
enum uio_rw { UIO_READ, UIO_WRITE };
#endif
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
/* Segment flag values. */
enum uio_seg {
UIO_USERSPACE, /* from user data space */
UIO_SYSSPACE /* from system space */
};
#endif
struct proc {
int stub; /* struct proc is a dummy for __Userspace__ */
};
MALLOC_DECLARE(M_ACCF);
MALLOC_DECLARE(M_PCB);
MALLOC_DECLARE(M_SONAME);
/* __Userspace__ Are these all the fields we need?
* Removing struct thread *uio_td; owner field
*/
struct uio {
struct iovec *uio_iov; /* scatter/gather list */
int uio_iovcnt; /* length of scatter/gather list */
off_t uio_offset; /* offset in target object */
ssize_t uio_resid; /* remaining bytes to process */
enum uio_seg uio_segflg; /* address space */
enum uio_rw uio_rw; /* operation */
};
/* __Userspace__ */
/*
* Kernel structure per socket.
* Contains send and receive buffer queues,
* handle on protocol and pointer to protocol
* private data and error information.
*/
#if defined(_WIN32)
#define AF_ROUTE 17
#if !defined(__MINGW32__)
typedef __int32 pid_t;
#endif
typedef unsigned __int32 uid_t;
enum sigType {
SIGNAL = 0,
BROADCAST = 1,
MAX_EVENTS = 2
};
#endif
/*-
* Locking key to struct socket:
* (a) constant after allocation, no locking required.
* (b) locked by SOCK_LOCK(so).
* (c) locked by SOCKBUF_LOCK(&so->so_rcv).
* (d) locked by SOCKBUF_LOCK(&so->so_snd).
* (e) locked by ACCEPT_LOCK().
* (f) not locked since integer reads/writes are atomic.
* (g) used only as a sleep/wakeup address, no value.
* (h) locked by global mutex so_global_mtx.
*/
struct socket {
int so_count; /* (b) reference count */
short so_type; /* (a) generic type, see socket.h */
short so_options; /* from socket call, see socket.h */
short so_linger; /* time to linger while closing */
short so_state; /* (b) internal state flags SS_* */
int so_qstate; /* (e) internal state flags SQ_* */
void *so_pcb; /* protocol control block */
int so_dom;
/*
* Variables for connection queuing.
* Socket where accepts occur is so_head in all subsidiary sockets.
* If so_head is 0, socket is not related to an accept.
* For head socket so_incomp queues partially completed connections,
* while so_comp is a queue of connections ready to be accepted.
* If a connection is aborted and it has so_head set, then
* it has to be pulled out of either so_incomp or so_comp.
* We allow connections to queue up based on current queue lengths
* and limit on number of queued connections for this socket.
*/
struct socket *so_head; /* (e) back pointer to listen socket */
TAILQ_HEAD(, socket) so_incomp; /* (e) queue of partial unaccepted connections */
TAILQ_HEAD(, socket) so_comp; /* (e) queue of complete unaccepted connections */
TAILQ_ENTRY(socket) so_list; /* (e) list of unaccepted connections */
u_short so_qlen; /* (e) number of unaccepted connections */
u_short so_incqlen; /* (e) number of unaccepted incomplete
connections */
u_short so_qlimit; /* (e) max number queued connections */
short so_timeo; /* (g) connection timeout */
userland_cond_t timeo_cond; /* timeo_cond condition variable being used in wakeup */
u_short so_error; /* (f) error affecting connection */
struct sigio *so_sigio; /* [sg] information for async I/O or
out of band data (SIGURG) */
u_long so_oobmark; /* (c) chars to oob mark */
TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */
/*
* Variables for socket buffering.
*/
struct sockbuf {
/* __Userspace__ Many of these fields may
* not be required for the sctp stack.
* Commenting out the following.
* Including pthread mutex and condition variable to be
* used by sbwait, sorwakeup and sowwakeup.
*/
/* struct selinfo sb_sel;*/ /* process selecting read/write */
/* struct mtx sb_mtx;*/ /* sockbuf lock */
/* struct sx sb_sx;*/ /* prevent I/O interlacing */
userland_cond_t sb_cond; /* sockbuf condition variable */
userland_mutex_t sb_mtx; /* sockbuf lock associated with sb_cond */
short sb_state; /* (c/d) socket state on sockbuf */
#define sb_startzero sb_mb
struct mbuf *sb_mb; /* (c/d) the mbuf chain */
struct mbuf *sb_mbtail; /* (c/d) the last mbuf in the chain */
struct mbuf *sb_lastrecord; /* (c/d) first mbuf of last
* record in socket buffer */
struct mbuf *sb_sndptr; /* (c/d) pointer into mbuf chain */
u_int sb_sndptroff; /* (c/d) byte offset of ptr into chain */
u_int sb_cc; /* (c/d) actual chars in buffer */
u_int sb_hiwat; /* (c/d) max actual char count */
u_int sb_mbcnt; /* (c/d) chars of mbufs used */
u_int sb_mbmax; /* (c/d) max chars of mbufs to use */
u_int sb_ctl; /* (c/d) non-data chars in buffer */
int sb_lowat; /* (c/d) low water mark */
int sb_timeo; /* (c/d) timeout for read/write */
short sb_flags; /* (c/d) flags, see below */
} so_rcv, so_snd;
/*
* Constants for sb_flags field of struct sockbuf.
*/
#define SB_MAX (256*1024) /* default for max chars in sockbuf */
#define SB_RAW (64*1024*2) /*Aligning so->so_rcv.sb_hiwat with the receive buffer size of raw socket*/
/*
* Constants for sb_flags field of struct sockbuf.
*/
#define SB_WAIT 0x04 /* someone is waiting for data/space */
#define SB_SEL 0x08 /* someone is selecting */
#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
#define SB_UPCALL 0x20 /* someone wants an upcall */
#define SB_NOINTR 0x40 /* operations not interruptible */
#define SB_AIO 0x80 /* AIO operations queued */
#define SB_KNOTE 0x100 /* kernel note attached */
#define SB_AUTOSIZE 0x800 /* automatically size socket buffer */
void (*so_upcall)(struct socket *, void *, int);
void *so_upcallarg;
struct ucred *so_cred; /* (a) user credentials */
struct label *so_label; /* (b) MAC label for socket */
struct label *so_peerlabel; /* (b) cached MAC label for peer */
/* NB: generation count must not be first. */
uint32_t so_gencnt; /* (h) generation count */
void *so_emuldata; /* (b) private data for emulators */
struct so_accf {
struct accept_filter *so_accept_filter;
void *so_accept_filter_arg; /* saved filter args */
char *so_accept_filter_str; /* saved user args */
} *so_accf;
};
#define SB_EMPTY_FIXUP(sb) do { \
if ((sb)->sb_mb == NULL) { \
(sb)->sb_mbtail = NULL; \
(sb)->sb_lastrecord = NULL; \
} \
} while (/*CONSTCOND*/0)
/*
* Global accept mutex to serialize access to accept queues and
* fields associated with multiple sockets. This allows us to
* avoid defining a lock order between listen and accept sockets
* until such time as it proves to be a good idea.
*/
#if defined(_WIN32)
extern userland_mutex_t accept_mtx;
extern userland_cond_t accept_cond;
#define ACCEPT_LOCK_ASSERT()
#define ACCEPT_LOCK() do { \
EnterCriticalSection(&accept_mtx); \
} while (0)
#define ACCEPT_UNLOCK() do { \
LeaveCriticalSection(&accept_mtx); \
} while (0)
#define ACCEPT_UNLOCK_ASSERT()
#else
extern userland_mutex_t accept_mtx;
extern userland_cond_t accept_cond;
#ifdef INVARIANTS
#define ACCEPT_LOCK() KASSERT(pthread_mutex_lock(&accept_mtx) == 0, ("%s: accept_mtx already locked", __func__))
#define ACCEPT_UNLOCK() KASSERT(pthread_mutex_unlock(&accept_mtx) == 0, ("%s: accept_mtx not locked", __func__))
#else
#define ACCEPT_LOCK() (void)pthread_mutex_lock(&accept_mtx)
#define ACCEPT_UNLOCK() (void)pthread_mutex_unlock(&accept_mtx)
#endif
#define ACCEPT_LOCK_ASSERT() \
KASSERT(pthread_mutex_trylock(&accept_mtx) == EBUSY, ("%s: accept_mtx not locked", __func__))
#define ACCEPT_UNLOCK_ASSERT() do { \
KASSERT(pthread_mutex_trylock(&accept_mtx) == 0, ("%s: accept_mtx locked", __func__)); \
(void)pthread_mutex_unlock(&accept_mtx); \
} while (0)
#endif
/*
* Per-socket buffer mutex used to protect most fields in the socket
* buffer.
*/
#define SOCKBUF_MTX(_sb) (&(_sb)->sb_mtx)
#if defined(_WIN32)
#define SOCKBUF_LOCK_INIT(_sb, _name) \
InitializeCriticalSection(SOCKBUF_MTX(_sb))
#define SOCKBUF_LOCK_DESTROY(_sb) DeleteCriticalSection(SOCKBUF_MTX(_sb))
#define SOCKBUF_COND_INIT(_sb) InitializeConditionVariable((&(_sb)->sb_cond))
#define SOCKBUF_COND_DESTROY(_sb) DeleteConditionVariable((&(_sb)->sb_cond))
#define SOCK_COND_INIT(_so) InitializeConditionVariable((&(_so)->timeo_cond))
#define SOCK_COND_DESTROY(_so) DeleteConditionVariable((&(_so)->timeo_cond))
#define SOCK_COND(_so) (&(_so)->timeo_cond)
#else
#ifdef INVARIANTS
#define SOCKBUF_LOCK_INIT(_sb, _name) do { \
pthread_mutexattr_t mutex_attr; \
\
pthread_mutexattr_init(&mutex_attr); \
pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_ERRORCHECK); \
pthread_mutex_init(SOCKBUF_MTX(_sb), &mutex_attr); \
pthread_mutexattr_destroy(&mutex_attr); \
} while (0)
#else
#define SOCKBUF_LOCK_INIT(_sb, _name) \
pthread_mutex_init(SOCKBUF_MTX(_sb), NULL)
#endif
#define SOCKBUF_LOCK_DESTROY(_sb) pthread_mutex_destroy(SOCKBUF_MTX(_sb))
#define SOCKBUF_COND_INIT(_sb) pthread_cond_init((&(_sb)->sb_cond), NULL)
#define SOCKBUF_COND_DESTROY(_sb) pthread_cond_destroy((&(_sb)->sb_cond))
#define SOCK_COND_INIT(_so) pthread_cond_init((&(_so)->timeo_cond), NULL)
#define SOCK_COND_DESTROY(_so) pthread_cond_destroy((&(_so)->timeo_cond))
#define SOCK_COND(_so) (&(_so)->timeo_cond)
#endif
/*__Userspace__ SOCKBUF_LOCK(_sb) is now defined in netinet/sctp_process_lock.h */
/* #define SOCKBUF_OWNED(_sb) mtx_owned(SOCKBUF_MTX(_sb)) unused */
/*__Userspace__ SOCKBUF_UNLOCK(_sb) is now defined in netinet/sctp_process_lock.h */
/*__Userspace__ SOCKBUF_LOCK_ASSERT(_sb) is now defined in netinet/sctp_process_lock.h */
/* #define SOCKBUF_UNLOCK_ASSERT(_sb) mtx_assert(SOCKBUF_MTX(_sb), MA_NOTOWNED) unused */
/*
* Per-socket mutex: we reuse the receive socket buffer mutex for space
* efficiency. This decision should probably be revisited as we optimize
* locking for the socket code.
*/
#define SOCK_MTX(_so) SOCKBUF_MTX(&(_so)->so_rcv)
/*__Userspace__ SOCK_LOCK(_so) is now defined in netinet/sctp_process_lock.h */
/* #define SOCK_OWNED(_so) SOCKBUF_OWNED(&(_so)->so_rcv) unused */
/*__Userspace__ SOCK_UNLOCK(_so) is now defined in netinet/sctp_process_lock.h */
#define SOCK_LOCK_ASSERT(_so) SOCKBUF_LOCK_ASSERT(&(_so)->so_rcv)
/*
* Socket state bits.
*
* Historically, this bits were all kept in the so_state field. For
* locking reasons, they are now in multiple fields, as they are
* locked differently. so_state maintains basic socket state protected
* by the socket lock. so_qstate holds information about the socket
* accept queues. Each socket buffer also has a state field holding
* information relevant to that socket buffer (can't send, rcv). Many
* fields will be read without locks to improve performance and avoid
* lock order issues. However, this approach must be used with caution.
*/
#define SS_NOFDREF 0x0001 /* no file table ref any more */
#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */
#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */
#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */
#define SS_NBIO 0x0100 /* non-blocking ops */
#define SS_ASYNC 0x0200 /* async i/o notify */
#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */
#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */
/*
* Protocols can mark a socket as SS_PROTOREF to indicate that, following
* pru_detach, they still want the socket to persist, and will free it
* themselves when they are done. Protocols should only ever call sofree()
* following setting this flag in pru_detach(), and never otherwise, as
* sofree() bypasses socket reference counting.
*/
#define SS_PROTOREF 0x4000 /* strong protocol reference */
/*
* Socket state bits now stored in the socket buffer state field.
*/
#define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */
#define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */
#define SBS_RCVATMARK 0x0040 /* at mark on input */
/*
* Socket state bits stored in so_qstate.
*/
#define SQ_INCOMP 0x0800 /* unaccepted, incomplete connection */
#define SQ_COMP 0x1000 /* unaccepted, complete connection */
/*
* Socket event flags
*/
#define SCTP_EVENT_READ 0x0001 /* socket is readable */
#define SCTP_EVENT_WRITE 0x0002 /* socket is writeable */
#define SCTP_EVENT_ERROR 0x0004 /* socket has an error state */
/*-------------------------------------------------------------*/
/*-------------------------------------------------------------*/
/* __Userspace__ */
/*-------------------------------------------------------------*/
/*-------------------------------------------------------------*/
/* this new __Userspace__ section is to copy portions of the _KERNEL block
* above into, avoiding having to port the entire thing at once...
* For function prototypes, the full bodies are in user_socket.c .
*/
/* ---------------------------------------------------------- */
/* --- function prototypes (implemented in user_socket.c) --- */
/* ---------------------------------------------------------- */
void soisconnecting(struct socket *so);
void soisdisconnecting(struct socket *so);
void soisconnected(struct socket *so);
struct socket * sonewconn(struct socket *head, int connstatus);
void socantrcvmore(struct socket *so);
void socantsendmore(struct socket *so);
void sofree(struct socket *so);
/* -------------- */
/* --- macros --- */
/* -------------- */
#define soref(so) do { \
SOCK_LOCK_ASSERT(so); \
++(so)->so_count; \
} while (0)
#define sorele(so) do { \
ACCEPT_LOCK_ASSERT(); \
SOCK_LOCK_ASSERT(so); \
KASSERT((so)->so_count > 0, ("sorele")); \
if (--(so)->so_count == 0) \
sofree(so); \
else { \
SOCK_UNLOCK(so); \
ACCEPT_UNLOCK(); \
} \
} while (0)
/* replacing imin with min (user_environment.h) */
#define sbspace(sb) \
((long) min((int)((sb)->sb_hiwat - (sb)->sb_cc), \
(int)((sb)->sb_mbmax - (sb)->sb_mbcnt)))
/* do we have to send all at once on a socket? */
#define sosendallatonce(so) \
((so)->so_proto->pr_flags & PR_ATOMIC)
/* can we read something from so? */
#define soreadable(so) \
((int)((so)->so_rcv.sb_cc) >= (so)->so_rcv.sb_lowat || \
((so)->so_rcv.sb_state & SBS_CANTRCVMORE) || \
!TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error)
#if 0 /* original */
#define PR_CONNREQUIRED 0x04 /* from sys/protosw.h "needed" for sowriteable */
#define sowriteable(so) \
((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \
(((so)->so_state&SS_ISCONNECTED) || \
((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \
((so)->so_snd.sb_state & SBS_CANTSENDMORE) || \
(so)->so_error)
#else /* line with PR_CONNREQUIRED removed */
/* can we write something to so? */
#define sowriteable(so) \
((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \
(((so)->so_state&SS_ISCONNECTED))) || \
((so)->so_snd.sb_state & SBS_CANTSENDMORE) || \
(so)->so_error)
#endif
extern void solisten_proto(struct socket *so, int backlog);
extern int solisten_proto_check(struct socket *so);
extern int sctp_listen(struct socket *so, int backlog, struct proc *p);
extern void socantrcvmore_locked(struct socket *so);
extern int sctp_bind(struct socket *so, struct sockaddr *addr);
extern int sctp6_bind(struct socket *so, struct sockaddr *addr, void *proc);
extern int sctpconn_bind(struct socket *so, struct sockaddr *addr);
extern int sctp_accept(struct socket *so, struct sockaddr **addr);
extern int sctp_attach(struct socket *so, int proto, uint32_t vrf_id);
extern int sctp6_attach(struct socket *so, int proto, uint32_t vrf_id);
extern int sctp_abort(struct socket *so);
extern int sctp6_abort(struct socket *so);
extern void sctp_close(struct socket *so);
extern int soaccept(struct socket *so, struct sockaddr **nam);
extern int solisten(struct socket *so, int backlog);
extern int soreserve(struct socket *so, u_long sndcc, u_long rcvcc);
extern void sowakeup(struct socket *so, struct sockbuf *sb);
extern void wakeup(void *ident, struct socket *so); /*__Userspace__ */
extern int uiomove(void *cp, int n, struct uio *uio);
extern int sbwait(struct sockbuf *sb);
extern int sodisconnect(struct socket *so);
extern int soconnect(struct socket *so, struct sockaddr *nam);
extern int sctp_disconnect(struct socket *so);
extern int sctp_connect(struct socket *so, struct sockaddr *addr);
extern int sctp6_connect(struct socket *so, struct sockaddr *addr);
extern int sctpconn_connect(struct socket *so, struct sockaddr *addr);
extern void sctp_finish(void);
/* ------------------------------------------------ */
/* ----- macros copied from above ---- */
/* ------------------------------------------------ */
/*
* Do we need to notify the other side when I/O is possible?
*/
#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \
SB_UPCALL | SB_AIO | SB_KNOTE)) != 0)
/*
* In sorwakeup() and sowwakeup(), acquire the socket buffer lock to
* avoid a non-atomic test-and-wakeup. However, sowakeup is
* responsible for releasing the lock if it is called. We unlock only
* if we don't call into sowakeup. If any code is introduced that
* directly invokes the underlying sowakeup() primitives, it must
* maintain the same semantics.
*/
#define sorwakeup_locked(so) do { \
SOCKBUF_LOCK_ASSERT(&(so)->so_rcv); \
if (sb_notify(&(so)->so_rcv)) \
sowakeup((so), &(so)->so_rcv); \
else \
SOCKBUF_UNLOCK(&(so)->so_rcv); \
} while (0)
#define sorwakeup(so) do { \
SOCKBUF_LOCK(&(so)->so_rcv); \
sorwakeup_locked(so); \
} while (0)
#define sowwakeup_locked(so) do { \
SOCKBUF_LOCK_ASSERT(&(so)->so_snd); \
if (sb_notify(&(so)->so_snd)) \
sowakeup((so), &(so)->so_snd); \
else \
SOCKBUF_UNLOCK(&(so)->so_snd); \
} while (0)
#define sowwakeup(so) do { \
SOCKBUF_LOCK(&(so)->so_snd); \
sowwakeup_locked(so); \
} while (0)
#endif /* !_SYS_SOCKETVAR_H_ */

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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USER_UMA_H_
#define _USER_UMA_H_
#define UMA_ZFLAG_FULL 0x40000000 /* Reached uz_maxpages */
#define UMA_ALIGN_PTR (sizeof(void *) - 1) /* Alignment fit for ptr */
/* __Userspace__ All these definitions will change for
userspace Universal Memory Allocator (UMA). These are included
for reference purposes and to avoid compile errors for the time being.
*/
typedef int (*uma_ctor)(void *mem, int size, void *arg, int flags);
typedef void (*uma_dtor)(void *mem, int size, void *arg);
typedef int (*uma_init)(void *mem, int size, int flags);
typedef void (*uma_fini)(void *mem, int size);
typedef struct uma_zone * uma_zone_t;
typedef struct uma_keg * uma_keg_t;
struct uma_cache {
int stub; /* TODO __Userspace__ */
};
struct uma_keg {
int stub; /* TODO __Userspace__ */
};
struct uma_zone {
char *uz_name; /* Text name of the zone */
struct mtx *uz_lock; /* Lock for the zone (keg's lock) */
uma_keg_t uz_keg; /* Our underlying Keg */
LIST_ENTRY(uma_zone) uz_link; /* List of all zones in keg */
LIST_HEAD(,uma_bucket) uz_full_bucket; /* full buckets */
LIST_HEAD(,uma_bucket) uz_free_bucket; /* Buckets for frees */
uma_ctor uz_ctor; /* Constructor for each allocation */
uma_dtor uz_dtor; /* Destructor */
uma_init uz_init; /* Initializer for each item */
uma_fini uz_fini; /* Discards memory */
u_int64_t uz_allocs; /* Total number of allocations */
u_int64_t uz_frees; /* Total number of frees */
u_int64_t uz_fails; /* Total number of alloc failures */
uint16_t uz_fills; /* Outstanding bucket fills */
uint16_t uz_count; /* Highest value ub_ptr can have */
/*
* This HAS to be the last item because we adjust the zone size
* based on NCPU and then allocate the space for the zones.
*/
struct uma_cache uz_cpu[1]; /* Per cpu caches */
};
/* Prototype */
uma_zone_t
uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor,
uma_init uminit, uma_fini fini, int align, uint32_t flags);
#define uma_zone_set_max(zone, number) /* stub TODO __Userspace__ */
uma_zone_t
uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor,
uma_init uminit, uma_fini fini, int align, uint32_t flags) {
return NULL; /* stub TODO __Userspace__. Also place implementation in a separate .c file */
}
#endif

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