ptp-helper: Add a feature option for the PTP support

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4410>
This commit is contained in:
Sebastian Dröge 2023-04-13 15:38:54 +03:00 committed by GStreamer Marge Bot
parent 2e84603b02
commit 6378ebbdcd
2 changed files with 102 additions and 97 deletions

View file

@ -1,114 +1,118 @@
# Check PTP support # Check PTP support
have_ptp = true ptp_helper_option = get_option('ptp-helper')
if ptp_helper_option.disabled()
subdir_done()
endif
if host_system not in ['linux', 'freebsd', 'openbsd', 'netbsd', 'dragonfly', 'darwin', 'sunos', 'solaris', 'illumos', 'windows'] if host_system not in ['linux', 'freebsd', 'openbsd', 'netbsd', 'dragonfly', 'darwin', 'sunos', 'solaris', 'illumos', 'windows']
have_ptp = false if ptp_helper_option.enabled()
message('PTP not supported on this OS') error('PTP not supported on this OS')
endif
subdir_done()
endif endif
if have_ptp have_rust = add_languages('rust', native : false, required : false)
have_rust = add_languages('rust', native : false, required : false) if not have_rust
if not have_rust if ptp_helper_option.enabled()
have_ptp = false error('PTP not supported without Rust compiler')
warning('PTP not supported without Rust compiler')
endif endif
subdir_done()
endif endif
if have_ptp rustc = meson.get_compiler('rust')
rustc = meson.get_compiler('rust')
if rustc.get_id() not in ['rustc', 'clippy-driver rustc'] if rustc.get_id() not in ['rustc', 'clippy-driver rustc']
warning('PTP support is only tested with rustc, found different compiler @0@ @1@'.format(rustc.get_id(), rustc.version())) warning('PTP support is only tested with rustc, found different compiler @0@ @1@'.format(rustc.get_id(), rustc.version()))
endif
# We currently need at least Rust 1.48 on all platforms but Windows.
# On Windows some 1.54 API is used that would otherwise complicate things
# unncecessarily.
rust_req = '1.48'
if host_system == 'windows'
rust_req = '1.54'
endif
if rustc.get_id() in ['rustc', 'clippy-driver rustc'] and not rustc.version().version_compare('>=' + rust_req)
have_ptp = false
warning('PTP support requires at least Rust @0@ on this platform, found @1@'.format(rust_req, rustc.version()))
endif
endif endif
if have_ptp # We currently need at least Rust 1.48 on all platforms but Windows.
cdata.set('HAVE_PTP', 1, description : 'PTP support available') # On Windows some 1.54 API is used that would otherwise complicate things
# unncecessarily.
rust_req = '1.48'
if host_system == 'windows'
rust_req = '1.54'
endif
ptp_helper_conf_data = configuration_data() if rustc.get_id() in ['rustc', 'clippy-driver rustc'] and not rustc.version().version_compare('>=' + rust_req)
rust_args = [] if ptp_helper_option.enabled()
error('PTP support requires at least Rust @0@ on this platform, found @1@'.format(rust_req, rustc.version()))
endif
subdir_done()
endif
setcap_prog = find_program('setcap', '/usr/sbin/setcap', '/sbin/setcap', required : false) cdata.set('HAVE_PTP', 1, description : 'PTP support available')
cap_dep = dependency('libcap', required: false)
# user/group to change to in gst-ptp-helper ptp_helper_conf_data = configuration_data()
ptp_helper_setuid_user = get_option('ptp-helper-setuid-user') rust_args = []
if ptp_helper_setuid_user != ''
ptp_helper_conf_data.set('PTP_HELPER_SETUID_USER', 'Some("@0@")'.format(ptp_helper_setuid_user)) setcap_prog = find_program('setcap', '/usr/sbin/setcap', '/sbin/setcap', required : false)
cap_dep = dependency('libcap', required: false)
# user/group to change to in gst-ptp-helper
ptp_helper_setuid_user = get_option('ptp-helper-setuid-user')
if ptp_helper_setuid_user != ''
ptp_helper_conf_data.set('PTP_HELPER_SETUID_USER', 'Some("@0@")'.format(ptp_helper_setuid_user))
else
ptp_helper_conf_data.set('PTP_HELPER_SETUID_USER', 'None')
endif
ptp_helper_setuid_group = get_option('ptp-helper-setuid-group')
if ptp_helper_setuid_group != ''
ptp_helper_conf_data.set('PTP_HELPER_SETUID_GROUP', 'Some("@0@")'.format(ptp_helper_setuid_group))
else
ptp_helper_conf_data.set('PTP_HELPER_SETUID_GROUP', 'None')
endif
# how to install gst-ptp-helper
with_ptp_helper_permissions = get_option('ptp-helper-permissions')
if with_ptp_helper_permissions == 'auto'
if setcap_prog.found() and cap_dep.found()
with_ptp_helper_permissions = 'capabilities'
elif host_system == 'windows'
with_ptp_helper_permissions = 'none'
else else
ptp_helper_conf_data.set('PTP_HELPER_SETUID_USER', 'None') with_ptp_helper_permissions = 'setuid-root'
endif endif
ptp_helper_setuid_group = get_option('ptp-helper-setuid-group')
if ptp_helper_setuid_group != ''
ptp_helper_conf_data.set('PTP_HELPER_SETUID_GROUP', 'Some("@0@")'.format(ptp_helper_setuid_group))
else
ptp_helper_conf_data.set('PTP_HELPER_SETUID_GROUP', 'None')
endif
# how to install gst-ptp-helper
with_ptp_helper_permissions = get_option('ptp-helper-permissions')
if with_ptp_helper_permissions == 'auto'
if setcap_prog.found() and cap_dep.found()
with_ptp_helper_permissions = 'capabilities'
elif host_system == 'windows'
with_ptp_helper_permissions = 'none'
else
with_ptp_helper_permissions = 'setuid-root'
endif
endif
message('How to install gst-ptp-helper: ' + with_ptp_helper_permissions)
if with_ptp_helper_permissions == 'none'
rust_args += ['--cfg', 'ptp_helper_permissions="none"']
# nothing to do
elif with_ptp_helper_permissions == 'setuid-root'
rust_args += ['--cfg', 'ptp_helper_permissions="setuid-root"']
elif with_ptp_helper_permissions == 'capabilities'
if not setcap_prog.found()
error('capabilities-based ptp-helper-permissions requested, but could not find setcap tool.')
elif not cap_dep.found()
error('capabilities-based ptp-helper-permissions requested, but could not find libcap.')
endif
rust_args += ['--cfg', 'ptp_helper_permissions="setcap"']
else
error('Unexpected ptp helper permissions value: ' + with_ptp_helper_permissions)
endif
conf_lib_rs = configure_file(input : 'conf_lib.rs.in',
output : 'conf_lib.rs',
configuration: ptp_helper_conf_data)
conf = static_library('gst_ptp_helper_conf', conf_lib_rs,
override_options : ['rust_std=2018'],
rust_args : ['-Cpanic=abort'],
rust_crate_type : 'rlib')
exe = executable('gst-ptp-helper', 'main.rs',
override_options : ['rust_std=2018'],
rust_args : ['-Cpanic=abort', rust_args],
dependencies : [cap_dep],
link_with : conf,
install_dir : helpers_install_dir,
install : true)
if host_system != 'windows'
meson.add_install_script('ptp_helper_post_install.sh',
helpers_install_dir, with_ptp_helper_permissions,
setcap_prog.found() ? setcap_prog.full_path() : '')
endif
meson.add_devenv({'GST_PTP_HELPER': exe.full_path()})
endif endif
message('How to install gst-ptp-helper: ' + with_ptp_helper_permissions)
if with_ptp_helper_permissions == 'none'
rust_args += ['--cfg', 'ptp_helper_permissions="none"']
# nothing to do
elif with_ptp_helper_permissions == 'setuid-root'
rust_args += ['--cfg', 'ptp_helper_permissions="setuid-root"']
elif with_ptp_helper_permissions == 'capabilities'
if not setcap_prog.found()
error('capabilities-based ptp-helper-permissions requested, but could not find setcap tool.')
elif not cap_dep.found()
error('capabilities-based ptp-helper-permissions requested, but could not find libcap.')
endif
rust_args += ['--cfg', 'ptp_helper_permissions="setcap"']
else
error('Unexpected ptp helper permissions value: ' + with_ptp_helper_permissions)
endif
conf_lib_rs = configure_file(input : 'conf_lib.rs.in',
output : 'conf_lib.rs',
configuration: ptp_helper_conf_data)
conf = static_library('gst_ptp_helper_conf', conf_lib_rs,
override_options : ['rust_std=2018'],
rust_args : ['-Cpanic=abort'],
rust_crate_type : 'rlib')
exe = executable('gst-ptp-helper', 'main.rs',
override_options : ['rust_std=2018'],
rust_args : ['-Cpanic=abort', rust_args],
dependencies : [cap_dep],
link_with : conf,
install_dir : helpers_install_dir,
install : true)
if host_system != 'windows'
meson.add_install_script('ptp_helper_post_install.sh',
helpers_install_dir, with_ptp_helper_permissions,
setcap_prog.found() ? setcap_prog.full_path() : '')
endif
meson.add_devenv({'GST_PTP_HELPER': exe.full_path()})

View file

@ -3,6 +3,7 @@ option('gst_parse', type : 'boolean', value : true,
description: 'Enable pipeline string parser') description: 'Enable pipeline string parser')
option('registry', type : 'boolean', value : true) option('registry', type : 'boolean', value : true)
option('tracer_hooks', type : 'boolean', value : true, description: 'Enable tracer usage') option('tracer_hooks', type : 'boolean', value : true, description: 'Enable tracer usage')
option('ptp-helper', type: 'feature', description: 'Build gst-ptp-helper')
option('ptp-helper-setuid-user', type : 'string', option('ptp-helper-setuid-user', type : 'string',
description : 'User to switch to when installing gst-ptp-helper setuid root') description : 'User to switch to when installing gst-ptp-helper setuid root')
option('ptp-helper-setuid-group', type : 'string', option('ptp-helper-setuid-group', type : 'string',