mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-06-10 01:59:30 +00:00
Code Issues 1 Projects Releases Wiki Activity

aes: add aes encryption and decryption elements

Browse source 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1505>
This commit is contained in:
Aaron Boxer 2021-07-06 12:31:42 -04:00 committed by Olivier Crête
parent 1a919a1e41
commit 5cf4dc2b82
14 changed files with 2350 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

206
docs/plugins/gst_plugins_cache.json
View file

@ -186,6 +186,212 @@
"tracers": {},
"url": "Unknown package origin"
},
"aes": {
"description": "AES encryption/decryption plugin",
"elements": {
"aesdec": {
"author": "Rabindra Harlalka <Rabindra.Harlalka@nice.com>",
"description": "AES buffer decryption",
"hierarchy": [
"GstAesDec",
"GstBaseTransform",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"klass": "Generic/Filter",
"long-name": "aesdec",
"pad-templates": {
"sink": {
"caps": "ANY",
"direction": "sink",
"presence": "always"
},
"src": {
"caps": "ANY",
"direction": "src",
"presence": "always"
}
},
"properties": {
"cipher": {
"blurb": "cipher mode",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "aes-128-cbc (0)",
"mutable": "ready",
"readable": true,
"type": "GstAesCipher",
"writable": true
},
"iv": {
"blurb": "AES encryption initialization vector (in hexadecimal). Length must equal AES block length (16 bytes)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "",
"mutable": "ready",
"readable": true,
"type": "gchararray",
"writable": true
},
"key": {
"blurb": "AES encryption key (in hexadecimal). Length (in bytes) must be equivalent to the number of bits in the key length : 16 bytes for AES 128 and 32 bytes for AES 256",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "",
"mutable": "ready",
"readable": true,
"type": "gchararray",
"writable": true
},
"per-buffer-padding": {
"blurb": "If true, pad each buffer using PKCS7 padding scheme. Otherwise, onlypad final buffer",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "ready",
"readable": true,
"type": "gboolean",
"writable": true
},
"serialize-iv": {
"blurb": "Read initialization vector from first 16 bytes of first buffer",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "ready",
"readable": true,
"type": "gboolean",
"writable": true
}
},
"rank": "primary"
},
"aesenc": {
"author": "Rabindra Harlalka <Rabindra.Harlalka@nice.com>",
"description": "AES buffer encryption",
"hierarchy": [
"GstAesEnc",
"GstBaseTransform",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"klass": "Generic/Filter",
"long-name": "aesenc",
"pad-templates": {
"sink": {
"caps": "ANY",
"direction": "sink",
"presence": "always"
},
"src": {
"caps": "ANY",
"direction": "src",
"presence": "always"
}
},
"properties": {
"cipher": {
"blurb": "cipher mode",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "aes-128-cbc (0)",
"mutable": "ready",
"readable": true,
"type": "GstAesCipher",
"writable": true
},
"iv": {
"blurb": "AES encryption initialization vector (in hexadecimal). Length must equal AES block length (16 bytes)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "",
"mutable": "ready",
"readable": true,
"type": "gchararray",
"writable": true
},
"key": {
"blurb": "AES encryption key (in hexadecimal). Length (in bytes) must be equivalent to the number of bits in the key length : 16 bytes for AES 128 and 32 bytes for AES 256",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "",
"mutable": "ready",
"readable": true,
"type": "gchararray",
"writable": true
},
"per-buffer-padding": {
"blurb": "If true, pad each buffer using PKCS7 padding scheme. Otherwise, onlypad final buffer",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "ready",
"readable": true,
"type": "gboolean",
"writable": true
},
"serialize-iv": {
"blurb": "Store initialization vector in first 16 bytes of first buffer",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "ready",
"readable": true,
"type": "gboolean",
"writable": true
}
},
"rank": "primary"
}
},
"filename": "gstaes",
"license": "LGPL",
"other-types": {
"GstAesCipher": {
"kind": "enum",
"values": [
{
"desc": "AES 128 bit cipher key using CBC method",
"name": "aes-128-cbc",
"value": "0"
},
{
"desc": "AES 256 bit cipher key using CBC method",
"name": "aes-256-cbc",
"value": "1"
}
]
}
},
"package": "GStreamer Bad Plug-ins",
"source": "gst-plugins-bad",
"tracers": {},
"url": "Unknown package origin"
},
"aiff": {
"description": "Create and parse Audio Interchange File Format (AIFF) files",
"elements": {

54
ext/aes/gstaes.c Normal file
View file

@ -0,0 +1,54 @@
/*
* GStreamer gstreamer-aes
*
* Copyright, 2021 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* gstaes.c
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstaesdec.h"
#include "gstaesenc.h"
/**
* SECTION:plugin-aes
*
* AES encryption and decryption
*
* See also: @aesenc, @aesdec
* Since: 1.20
*/
static gboolean
plugin_init (GstPlugin * plugin)
{
gboolean success = GST_ELEMENT_REGISTER (aesenc, plugin);
success = GST_ELEMENT_REGISTER (aesdec, plugin) || success;
return success;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
aes,
"AES encryption/decryption plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);

625
ext/aes/gstaesdec.c Normal file
View file

@ -0,0 +1,625 @@
/*
* GStreamer gstreamer-aesdec
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, LCC (C) 2016 RidgeRun, LCC <jose.jimenez@ridgerun.com>
* Copyright (C) 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-aesdec
*
* AES decryption
*
* ## Example
*
* |[
* echo "This is an AES crypto test ... " > plain.txt && \
* gst-launch-1.0 filesrc location=plain.txt ! \
* aesenc key=1f9423681beb9a79215820f6bda73d0f iv=e9aa8e834d8d70b7e0d254ff670dd718 ! \
* aesdec key=1f9423681beb9a79215820f6bda73d0f iv=e9aa8e834d8d70b7e0d254ff670dd718 ! \
* filesink location=dec.txt && \
* cat dec.txt
*
* ]|
*
* Since: 1.20
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <string.h>
#include "gstaeshelper.h"
#include "gstaesdec.h"
GST_DEBUG_CATEGORY_STATIC (gst_aes_dec_debug);
#define GST_CAT_DEFAULT gst_aes_dec_debug
G_DEFINE_TYPE_WITH_CODE (GstAesDec, gst_aes_dec, GST_TYPE_BASE_TRANSFORM,
GST_DEBUG_CATEGORY_INIT (gst_aes_dec_debug, "aesdec", 0,
"aesdec AES decryption element")
);
GST_ELEMENT_REGISTER_DEFINE (aesdec, "aesdec", GST_RANK_PRIMARY,
GST_TYPE_AES_DEC);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY")
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY")
);
static void gst_aes_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_aes_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_aes_dec_transform (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_aes_dec_prepare_output_buffer (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer ** outbuf);
static gboolean
gst_aes_dec_sink_event (GstBaseTransform * base, GstEvent * event);
static gboolean gst_aes_dec_start (GstBaseTransform * base);
static gboolean gst_aes_dec_stop (GstBaseTransform * base);
/* aes_dec helper functions */
static gboolean gst_aes_dec_openssl_init (GstAesDec * filter);
static gboolean gst_aes_dec_init_cipher (GstAesDec * filter);
static void gst_aes_dec_finalize (GObject * object);
/* GObject vmethod implementations */
/* initialize class */
static void
gst_aes_dec_class_init (GstAesDecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_aes_dec_set_property;
gobject_class->get_property = gst_aes_dec_get_property;
gobject_class->finalize = gst_aes_dec_finalize;
gst_type_mark_as_plugin_api (GST_TYPE_AES_CIPHER, 0);
/**
* GstAesDec:cipher
*
* AES cipher mode (key length and mode)
* Currently, 128 and 256 bit keys are supported,
* in "cipher block chaining" (CBC) mode
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_CIPHER,
g_param_spec_enum ("cipher",
"Cipher",
"cipher mode",
GST_TYPE_AES_CIPHER, GST_AES_DEFAULT_CIPHER_MODE,
(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY)));
/**
* GstAesDec:serialize-iv
*
* If true, read initialization vector from first 16 bytes of first buffer
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_SERIALIZE_IV,
g_param_spec_boolean ("serialize-iv", "Serialize IV",
"Read initialization vector from first 16 bytes of first buffer",
GST_AES_DEFAULT_SERIALIZE_IV,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesDec:per-buffer-padding
*
* If true, each buffer will be padded using PKCS7 padding
* If false, only the final buffer in the stream will be padded
* (by OpenSSL) using PKCS7
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_PER_BUFFER_PADDING,
g_param_spec_boolean ("per-buffer-padding", "Per buffer padding",
"If true, pad each buffer using PKCS7 padding scheme. Otherwise, only"
"pad final buffer",
GST_AES_PER_BUFFER_PADDING_DEFAULT,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesDec:key
*
* AES encryption key (hexadecimal)
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_KEY,
g_param_spec_string ("key", "Key",
"AES encryption key (in hexadecimal). Length (in bytes) must be equivalent to "
"the number of bits in the key length : "
"16 bytes for AES 128 and 32 bytes for AES 256",
(gchar *) GST_AES_DEFAULT_KEY,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesDec:iv
*
* AES encryption initialization vector (hexadecimal)
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_IV,
g_param_spec_string ("iv", "Iv",
"AES encryption initialization vector (in hexadecimal). "
"Length must equal AES block length (16 bytes)",
(gchar *) GST_AES_DEFAULT_IV,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
gst_element_class_set_details_simple (gstelement_class,
"aesdec",
"Generic/Filter",
"AES buffer decryption",
"Rabindra Harlalka <Rabindra.Harlalka@nice.com>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
GST_BASE_TRANSFORM_CLASS (klass)->transform =
GST_DEBUG_FUNCPTR (gst_aes_dec_transform);
GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
GST_DEBUG_FUNCPTR (gst_aes_dec_prepare_output_buffer);
GST_BASE_TRANSFORM_CLASS (klass)->start =
GST_DEBUG_FUNCPTR (gst_aes_dec_start);
GST_BASE_TRANSFORM_CLASS (klass)->sink_event =
GST_DEBUG_FUNCPTR (gst_aes_dec_sink_event);
GST_BASE_TRANSFORM_CLASS (klass)->stop = GST_DEBUG_FUNCPTR (gst_aes_dec_stop);
}
/* Initialize element
*/
static void
gst_aes_dec_init (GstAesDec * filter)
{
GST_INFO_OBJECT (filter, "Initializing plugin");
filter->cipher = GST_AES_DEFAULT_CIPHER_MODE;
filter->awaiting_first_buffer = TRUE;
filter->per_buffer_padding = GST_AES_PER_BUFFER_PADDING_DEFAULT;
g_mutex_init (&filter->decoder_lock);
}
static void
gst_aes_dec_finalize (GObject * object)
{
GstAesDec *filter = GST_AES_DEC (object);
g_mutex_clear (&filter->decoder_lock);
G_OBJECT_CLASS (gst_aes_dec_parent_class)->finalize (object);
}
static void
gst_aes_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAesDec *filter = GST_AES_DEC (object);
g_mutex_lock (&filter->decoder_lock);
/* no property may be set after first output buffer is prepared */
if (filter->locked_properties) {
GST_WARNING_OBJECT (filter,
"Properties cannot be set once buffers begin flowing in element. Ignored");
goto cleanup;
}
switch (prop_id) {
case PROP_CIPHER:
filter->cipher = g_value_get_enum (value);
filter->evp_cipher =
EVP_get_cipherbyname (gst_aes_cipher_enum_to_string (filter->cipher));
GST_DEBUG_OBJECT (filter, "cipher: %s",
gst_aes_cipher_enum_to_string (filter->cipher));
break;
case PROP_SERIALIZE_IV:
filter->serialize_iv = g_value_get_boolean (value);
GST_DEBUG_OBJECT (filter, "serialize iv: %s",
filter->serialize_iv ? "TRUE" : "FALSE");
break;
case PROP_PER_BUFFER_PADDING:
filter->per_buffer_padding = g_value_get_boolean (value);
GST_DEBUG_OBJECT (filter, "Per buffer padding: %s",
filter->per_buffer_padding ? "TRUE" : "FALSE");
break;
case PROP_KEY:
{
guint hex_len = gst_aes_hexstring2bytearray (GST_ELEMENT (filter),
g_value_get_string (value), filter->key);
if (!hex_len) {
GST_ERROR_OBJECT (filter, "invalid key");
goto cleanup;
}
GST_DEBUG_OBJECT (filter, "key: %s", g_value_get_string (value));
}
break;
case PROP_IV:
{
gchar iv_string[2 * GST_AES_BLOCK_SIZE + 1];
guint hex_len = gst_aes_hexstring2bytearray (GST_ELEMENT (filter),
g_value_get_string (value), filter->iv);
if (hex_len != GST_AES_BLOCK_SIZE) {
GST_ERROR_OBJECT (filter, "invalid initialization vector");
goto cleanup;
}
GST_DEBUG_OBJECT (filter, "iv: %s",
gst_aes_bytearray2hexstring (filter->iv, iv_string,
GST_AES_BLOCK_SIZE));
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
cleanup:
g_mutex_unlock (&filter->decoder_lock);
}
static void
gst_aes_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAesDec *filter = GST_AES_DEC (object);
switch (prop_id) {
case PROP_CIPHER:
g_value_set_enum (value, filter->cipher);
break;
case PROP_SERIALIZE_IV:
g_value_set_boolean (value, filter->serialize_iv);
break;
case PROP_PER_BUFFER_PADDING:
g_value_set_boolean (value, filter->per_buffer_padding);
break;
case PROP_KEY:
g_value_set_string (value, (gchar *) filter->key);
break;
case PROP_IV:
g_value_set_string (value, (gchar *) filter->iv);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_aes_dec_sink_event (GstBaseTransform * base, GstEvent * event)
{
GstAesDec *filter = GST_AES_DEC (base);
g_mutex_lock (&filter->decoder_lock);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
GST_DEBUG_OBJECT (filter, "Received EOS on sink pad");
if (!filter->per_buffer_padding && !filter->awaiting_first_buffer) {
GstBuffer *outbuf = NULL;
gint len;
GstMapInfo outmap;
outbuf = gst_buffer_new_allocate (NULL, EVP_MAX_BLOCK_LENGTH, NULL);
if (outbuf == NULL) {
GST_DEBUG_OBJECT (filter,
"Failed to allocate a new buffer of length %d",
EVP_MAX_BLOCK_LENGTH);
goto buffer_fail;
}
if (!gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE)) {
GST_DEBUG_OBJECT (filter,
"gst_buffer_map on outbuf failed for final buffer.");
gst_buffer_unref (outbuf);
goto buffer_fail;
}
if (1 != EVP_CipherFinal_ex (filter->evp_ctx, outmap.data, &len)) {
GST_DEBUG_OBJECT (filter, "Could not finalize openssl encryption");
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_unref (outbuf);
goto cipher_fail;
}
if (len == 0) {
GST_DEBUG_OBJECT (filter, "Not pushing final buffer as length is 0");
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_unref (outbuf);
goto out;
}
GST_DEBUG_OBJECT (filter, "Pushing final buffer of length: %d", len);
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_set_size (outbuf, len);
if (gst_pad_push (base->srcpad, outbuf) != GST_FLOW_OK) {
GST_DEBUG_OBJECT (filter, "Failed to push the final buffer");
goto push_fail;
}
} else {
GST_DEBUG_OBJECT (filter,
"Not pushing final buffer as we didn't have any input");
}
}
out:
g_mutex_unlock (&filter->decoder_lock);
return GST_BASE_TRANSFORM_CLASS (gst_aes_dec_parent_class)->sink_event (base,
event);
/* ERROR */
buffer_fail:
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to allocate or map buffer for writing"));
g_mutex_unlock (&filter->decoder_lock);
return FALSE;
cipher_fail:
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Cipher finalization failed."),
("Error while finalizing the stream"));
g_mutex_unlock (&filter->decoder_lock);
return FALSE;
push_fail:
GST_ELEMENT_ERROR (filter, CORE, PAD, (NULL),
("Failed to push the final buffer"));
g_mutex_unlock (&filter->decoder_lock);
return FALSE;
}
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
gst_aes_dec_transform (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstAesDec *filter = GST_AES_DEC (base);
GstFlowReturn ret = GST_FLOW_ERROR;
GstMapInfo inmap, outmap;
guchar *ciphertext;
gint ciphertext_len;
guchar *plaintext;
gint plaintext_len;
guint padding = 0;
if (!gst_buffer_map (inbuf, &inmap, GST_MAP_READ)) {
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to map buffer for reading"));
goto cleanup;
}
if (!gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE)) {
gst_buffer_unmap (inbuf, &inmap);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to map buffer for writing"));
goto cleanup;
}
/* DECRYPTING */
ciphertext = inmap.data;
ciphertext_len = gst_buffer_get_size (inbuf);
if (filter->awaiting_first_buffer) {
if (filter->serialize_iv) {
gchar iv_string[2 * GST_AES_BLOCK_SIZE + 1];
if (ciphertext_len < GST_AES_BLOCK_SIZE) {
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Cipher text too short"));
goto cleanup;
}
memcpy (filter->iv, ciphertext, GST_AES_BLOCK_SIZE);
GST_DEBUG_OBJECT (filter, "read serialized iv: %s",
gst_aes_bytearray2hexstring (filter->iv, iv_string,
GST_AES_BLOCK_SIZE));
ciphertext += GST_AES_BLOCK_SIZE;
ciphertext_len -= GST_AES_BLOCK_SIZE;
}
if (!gst_aes_dec_init_cipher (filter)) {
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to initialize cipher"));
goto cleanup;
}
}
plaintext = outmap.data;
if (!EVP_CipherUpdate (filter->evp_ctx, plaintext,
&plaintext_len, ciphertext, ciphertext_len)) {
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Cipher update failed."),
("Error while updating openssl cipher"));
goto cleanup;
} else {
if (filter->per_buffer_padding) {
gint k;
/* sanity check on padding value */
padding = plaintext[plaintext_len - 1];
if (padding == 0 || padding > GST_AES_BLOCK_SIZE) {
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Corrupt cipher text."),
("Illegal PKCS7 padding value %d", padding));
goto cleanup;
}
for (k = 1; k < padding; ++k) {
if (plaintext[plaintext_len - 1 - k] != padding) {
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Corrupt cipher text."),
("PKCS7 padding values must all be equal"));
goto cleanup;
}
}
/* remove padding (final block padding) */
plaintext_len -= padding;
}
if (plaintext_len > 2 * GST_AES_BLOCK_SIZE)
GST_MEMDUMP ("First 32 bytes of plain text", plaintext,
2 * GST_AES_BLOCK_SIZE);
}
gst_buffer_unmap (inbuf, &inmap);
gst_buffer_unmap (outbuf, &outmap);
GST_LOG_OBJECT (filter,
"Ciphertext len: %d, Plaintext len: %d, Padding: %d",
ciphertext_len, plaintext_len, padding);
gst_buffer_set_size (outbuf, plaintext_len);
ret = GST_FLOW_OK;
cleanup:
filter->awaiting_first_buffer = FALSE;
return ret;
}
static GstFlowReturn
gst_aes_dec_prepare_output_buffer (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer ** outbuf)
{
GstAesDec *filter = GST_AES_DEC (base);
GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (base);
guint out_size;
g_mutex_lock (&filter->decoder_lock);
filter->locked_properties = TRUE;
/* we need extra space at end of output buffer
* when we let OpenSSL handle PKCS7 padding */
out_size = (gint) gst_buffer_get_size (inbuf) +
(!filter->per_buffer_padding ? GST_AES_BLOCK_SIZE : 0);
/* Since serialized IV is stripped from first buffer,
* reduce output buffer size by GST_AES_BLOCK_SIZE in this case */
if (filter->serialize_iv && filter->awaiting_first_buffer) {
g_assert (gst_buffer_get_size (inbuf) > GST_AES_BLOCK_SIZE);
out_size -= GST_AES_BLOCK_SIZE;
}
g_mutex_unlock (&filter->decoder_lock);
*outbuf = gst_buffer_new_allocate (NULL, out_size, NULL);
GST_LOG_OBJECT (filter,
"Input buffer size %d,\nAllocating output buffer size: %d",
(gint) gst_buffer_get_size (inbuf), out_size);
bclass->copy_metadata (base, inbuf, *outbuf);
return GST_FLOW_OK;
}
static gboolean
gst_aes_dec_start (GstBaseTransform * base)
{
GstAesDec *filter = GST_AES_DEC (base);
GST_INFO_OBJECT (filter, "Starting");
if (!gst_aes_dec_openssl_init (filter)) {
GST_ERROR_OBJECT (filter, "OpenSSL initialization failed");
return FALSE;
}
if (!filter->serialize_iv) {
if (!gst_aes_dec_init_cipher (filter))
return FALSE;
}
GST_INFO_OBJECT (filter, "Start successful");
return TRUE;
}
static gboolean
gst_aes_dec_init_cipher (GstAesDec * filter)
{
if (!EVP_CipherInit_ex (filter->evp_ctx, filter->evp_cipher, NULL,
filter->key, filter->iv, FALSE)) {
GST_ERROR_OBJECT (filter, "Could not initialize openssl cipher");
return FALSE;
}
if (filter->per_buffer_padding) {
if (!EVP_CIPHER_CTX_set_padding (filter->evp_ctx, 0)) {
GST_ERROR_OBJECT (filter, "Could not set padding");
return FALSE;
}
}
return TRUE;
}
static gboolean
gst_aes_dec_stop (GstBaseTransform * base)
{
GstAesDec *filter = GST_AES_DEC (base);
GST_INFO_OBJECT (filter, "Stopping");
EVP_CIPHER_CTX_free (filter->evp_ctx);
return TRUE;
}
/* AesDec helper functions */
static gboolean
gst_aes_dec_openssl_init (GstAesDec * filter)
{
GST_DEBUG_OBJECT (filter, "Initializing with %s",
OpenSSL_version (OPENSSL_VERSION));
filter->evp_cipher =
EVP_get_cipherbyname (gst_aes_cipher_enum_to_string (filter->cipher));
if (!filter->evp_cipher) {
GST_ERROR_OBJECT (filter, "Could not get cipher by name from openssl");
return FALSE;
}
if (!(filter->evp_ctx = EVP_CIPHER_CTX_new ()))
return FALSE;
GST_LOG_OBJECT (filter, "Initialization successful");
return TRUE;
}

90
ext/aes/gstaesdec.h Normal file
View file

@ -0,0 +1,90 @@
/*
* GStreamer gstreamer-aesdec
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
#ifndef __GST_AES_DEC_H__
#define __GST_AES_DEC_H__
#include "gstaeshelper.h"
#include <gst/base/gstbasetransform.h>
G_BEGIN_DECLS
#define GST_TYPE_AES_DEC (gst_aes_dec_get_type())
G_DECLARE_FINAL_TYPE (GstAesDec, gst_aes_dec, GST, AES_DEC, GstBaseTransform)
#define GST_AES_DEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AES_DEC,GstAesDec))
#define GST_AES_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AES_DEC,GstAesDecClass))
#define GST_AES_DEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_AES_DEC,GstAesDecClass))
#define GST_IS_AES_DEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AES_DEC))
#define GST_IS_AES_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AES_DEC))
struct _GstAesDec
{
GstBaseTransform element;
/* Properties */
GstAesCipher cipher;
guchar key[EVP_MAX_KEY_LENGTH];
guchar iv[GST_AES_BLOCK_SIZE];
gboolean serialize_iv;
gboolean per_buffer_padding;
/* Element variables */
const EVP_CIPHER *evp_cipher;
EVP_CIPHER_CTX *evp_ctx;
gboolean awaiting_first_buffer;
GMutex decoder_lock;
/* if TRUE, then properties cannot be changed */
gboolean locked_properties;
};
struct _GstAesDecClass
{
GstBaseTransformClass parent_class;
};
GST_ELEMENT_REGISTER_DECLARE (aesdec)
G_END_DECLS
#endif /* __GST_AES_DEC_H__ */

594
ext/aes/gstaesenc.c Normal file
View file

@ -0,0 +1,594 @@
/*
* GStreamer gstreamer-aesenc
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, LCC (C) 2016 RidgeRun, LCC <jose.jimenez@ridgerun.com>
* Copyright (C) 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-aesenc
*
* AES encryption
*
* ## Example
*
* |[
* echo "This is an AES crypto test ... " > plain.txt && \
* gst-launch-1.0 filesrc location=plain.txt ! \
* aesenc key=1f9423681beb9a79215820f6bda73d0f iv=e9aa8e834d8d70b7e0d254ff670dd718 ! \
* aesdec key=1f9423681beb9a79215820f6bda73d0f iv=e9aa8e834d8d70b7e0d254ff670dd718 ! \
* filesink location=dec.txt && \
* cat dec.txt
*
* ]|
*
* Since: 1.20
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <string.h>
#include "gstaeshelper.h"
#include "gstaesenc.h"
GST_DEBUG_CATEGORY_STATIC (gst_aes_enc_debug);
#define GST_CAT_DEFAULT gst_aes_enc_debug
G_DEFINE_TYPE_WITH_CODE (GstAesEnc, gst_aes_enc, GST_TYPE_BASE_TRANSFORM,
GST_DEBUG_CATEGORY_INIT (gst_aes_enc_debug, "aesenc", 0,
"aesenc AES encryption element")
);
GST_ELEMENT_REGISTER_DEFINE (aesenc, "aesenc", GST_RANK_PRIMARY,
GST_TYPE_AES_ENC);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY")
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY")
);
static void gst_aes_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_aes_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_aes_enc_transform (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_aes_enc_prepare_output_buffer (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer ** outbuf);
static gboolean gst_aes_enc_start (GstBaseTransform * base);
static gboolean gst_aes_enc_stop (GstBaseTransform * base);
static gboolean
gst_aes_enc_sink_event (GstBaseTransform * base, GstEvent * event);
/* aes_enc helper functions */
static gboolean gst_aes_enc_openssl_init (GstAesEnc * filter);
static void gst_aes_enc_finalize (GObject * object);
/* GObject vmethod implementations */
/* initialize class */
static void
gst_aes_enc_class_init (GstAesEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_aes_enc_set_property;
gobject_class->get_property = gst_aes_enc_get_property;
gobject_class->finalize = gst_aes_enc_finalize;
gst_type_mark_as_plugin_api (GST_TYPE_AES_CIPHER, 0);
/**
* GstAesEnc:cipher
*
* AES cipher mode (key length and mode)
* Currently, 128 and 256 bit keys are supported,
* in "cipher block chaining" (CBC) mode
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_CIPHER,
g_param_spec_enum ("cipher",
"Cipher",
"cipher mode",
GST_TYPE_AES_CIPHER, GST_AES_DEFAULT_CIPHER_MODE,
(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY)));
/**
* GstAesEnc:serialize-iv
*
* If true, store initialization vector in first 16 bytes of first buffer
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_SERIALIZE_IV,
g_param_spec_boolean ("serialize-iv", "Serialize IV",
"Store initialization vector in first 16 bytes of first buffer",
GST_AES_DEFAULT_SERIALIZE_IV,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesEnc:per-buffer-padding
*
* If true, each buffer will be padded using PKCS7 padding
* If false, only the final buffer in the stream will be padded
* (by OpenSSL) using PKCS7
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_PER_BUFFER_PADDING,
g_param_spec_boolean ("per-buffer-padding", "Per buffer padding",
"If true, pad each buffer using PKCS7 padding scheme. Otherwise, only"
"pad final buffer",
GST_AES_PER_BUFFER_PADDING_DEFAULT,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesEnc:key
*
* AES encryption key (hexadecimal)
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_KEY,
g_param_spec_string ("key", "Key",
"AES encryption key (in hexadecimal). Length (in bytes) must be equivalent to "
"the number of bits in the key length : "
"16 bytes for AES 128 and 32 bytes for AES 256",
(gchar *) GST_AES_DEFAULT_KEY,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
/**
* GstAesEnc:iv
*
* AES encryption initialization vector (hexadecimal)
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_IV,
g_param_spec_string ("iv", "Iv",
"AES encryption initialization vector (in hexadecimal). "
"Length must equal AES block length (16 bytes)",
(gchar *) GST_AES_DEFAULT_IV,
G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY));
gst_element_class_set_details_simple (gstelement_class,
"aesenc",
"Generic/Filter",
"AES buffer encryption",
"Rabindra Harlalka <Rabindra.Harlalka@nice.com>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
GST_BASE_TRANSFORM_CLASS (klass)->transform =
GST_DEBUG_FUNCPTR (gst_aes_enc_transform);
GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
GST_DEBUG_FUNCPTR (gst_aes_enc_prepare_output_buffer);
GST_BASE_TRANSFORM_CLASS (klass)->start =
GST_DEBUG_FUNCPTR (gst_aes_enc_start);
GST_BASE_TRANSFORM_CLASS (klass)->sink_event =
GST_DEBUG_FUNCPTR (gst_aes_enc_sink_event);
GST_BASE_TRANSFORM_CLASS (klass)->stop = GST_DEBUG_FUNCPTR (gst_aes_enc_stop);
}
/* Initialize element
*/
static void
gst_aes_enc_init (GstAesEnc * filter)
{
GST_INFO_OBJECT (filter, "Initializing plugin");
filter->cipher = GST_AES_DEFAULT_CIPHER_MODE;
filter->awaiting_first_buffer = TRUE;
filter->per_buffer_padding = GST_AES_PER_BUFFER_PADDING_DEFAULT;
g_mutex_init (&filter->encoder_lock);
}
static void
gst_aes_enc_finalize (GObject * object)
{
GstAesEnc *filter = GST_AES_ENC (object);
g_mutex_clear (&filter->encoder_lock);
G_OBJECT_CLASS (gst_aes_enc_parent_class)->finalize (object);
}
static void
gst_aes_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAesEnc *filter = GST_AES_ENC (object);
g_mutex_lock (&filter->encoder_lock);
/* no property may be set after first output buffer is prepared */
if (filter->locked_properties) {
GST_WARNING_OBJECT (filter,
"Properties cannot be set once buffers begin flowing in element. Ignored");
goto cleanup;
}
switch (prop_id) {
case PROP_CIPHER:
filter->cipher = g_value_get_enum (value);
filter->evp_cipher =
EVP_get_cipherbyname (gst_aes_cipher_enum_to_string (filter->cipher));
GST_DEBUG_OBJECT (filter, "cipher: %s",
gst_aes_cipher_enum_to_string (filter->cipher));
break;
case PROP_SERIALIZE_IV:
filter->serialize_iv = g_value_get_boolean (value);
GST_DEBUG_OBJECT (filter, "serialize iv: %s",
filter->serialize_iv ? "TRUE" : "FALSE");
break;
case PROP_PER_BUFFER_PADDING:
filter->per_buffer_padding = g_value_get_boolean (value);
GST_DEBUG_OBJECT (filter, "Per buffer padding: %s",
filter->per_buffer_padding ? "TRUE" : "FALSE");
break;
case PROP_KEY:
{
guint hex_len = gst_aes_hexstring2bytearray (GST_ELEMENT (filter),
g_value_get_string (value), filter->key);
if (!hex_len) {
GST_ERROR_OBJECT (filter, "invalid key");
goto cleanup;
}
GST_DEBUG_OBJECT (filter, "key: %s", g_value_get_string (value));
}
break;
case PROP_IV:
{
gchar iv_string[2 * GST_AES_BLOCK_SIZE + 1];
guint hex_len = gst_aes_hexstring2bytearray (GST_ELEMENT (filter),
g_value_get_string (value), filter->iv);
if (hex_len != GST_AES_BLOCK_SIZE) {
GST_ERROR_OBJECT (filter, "invalid initialization vector");
goto cleanup;
}
GST_DEBUG_OBJECT (filter, "iv: %s",
gst_aes_bytearray2hexstring (filter->iv, iv_string,
GST_AES_BLOCK_SIZE));
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
cleanup:
g_mutex_unlock (&filter->encoder_lock);
}
static void
gst_aes_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAesEnc *filter = GST_AES_ENC (object);
switch (prop_id) {
case PROP_CIPHER:
g_value_set_enum (value, filter->cipher);
break;
case PROP_SERIALIZE_IV:
g_value_set_boolean (value, filter->serialize_iv);
break;
case PROP_PER_BUFFER_PADDING:
g_value_set_boolean (value, filter->per_buffer_padding);
break;
case PROP_KEY:
g_value_set_string (value, (gchar *) filter->key);
break;
case PROP_IV:
g_value_set_string (value, (gchar *) filter->iv);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_aes_enc_sink_event (GstBaseTransform * base, GstEvent * event)
{
GstAesEnc *filter = GST_AES_ENC (base);
g_mutex_lock (&filter->encoder_lock);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
GST_DEBUG_OBJECT (filter, "Received EOS on sink pad");
if (!filter->per_buffer_padding && !filter->awaiting_first_buffer) {
gint len;
GstBuffer *outbuf;
GstMapInfo outmap;
outbuf = gst_buffer_new_allocate (NULL, EVP_MAX_BLOCK_LENGTH, NULL);
if (outbuf == NULL) {
GST_DEBUG_OBJECT (filter,
"Failed to allocate a new buffer of length %d",
EVP_MAX_BLOCK_LENGTH);
goto buffer_fail;
}
if (!gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE)) {
GST_DEBUG_OBJECT (filter,
"gst_buffer_map on outbuf failed for final buffer.");
gst_buffer_unref (outbuf);
goto buffer_fail;
}
if (1 != EVP_CipherFinal_ex (filter->evp_ctx, outmap.data, &len)) {
GST_DEBUG_OBJECT (filter, "Could not finalize openssl encryption");
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_unref (outbuf);
goto cipher_fail;
}
if (len == 0) {
GST_DEBUG_OBJECT (filter, "Not pushing final buffer as length is 0");
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_unref (outbuf);
goto out;
}
GST_DEBUG_OBJECT (filter, "Pushing final buffer of length: %d", len);
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_set_size (outbuf, len);
if (gst_pad_push (base->srcpad, outbuf) != GST_FLOW_OK) {
GST_DEBUG_OBJECT (filter, "Failed to push the final buffer");
goto push_fail;
}
} else {
GST_DEBUG_OBJECT (filter,
"Not pushing final buffer as we didn't have any input");
}
}
out:
g_mutex_unlock (&filter->encoder_lock);
return GST_BASE_TRANSFORM_CLASS (gst_aes_enc_parent_class)->sink_event (base,
event);
/* ERROR */
buffer_fail:
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to allocate or map buffer for writing"));
g_mutex_unlock (&filter->encoder_lock);
return FALSE;
cipher_fail:
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Cipher finalization failed."),
("Error while finalizing the stream"));
g_mutex_unlock (&filter->encoder_lock);
return FALSE;
push_fail:
GST_ELEMENT_ERROR (filter, CORE, PAD, (NULL),
("Failed to push the final buffer"));
g_mutex_unlock (&filter->encoder_lock);
return FALSE;
}
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
gst_aes_enc_transform (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstAesEnc *filter = GST_AES_ENC (base);
GstFlowReturn ret = GST_FLOW_ERROR;
GstMapInfo inmap, outmap;
guchar *plaintext;
gint plaintext_len;
guchar *ciphertext;
gint ciphertext_len;
gint out_len;
if (!gst_buffer_map (inbuf, &inmap, GST_MAP_READ)) {
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to map buffer for reading"));
goto cleanup;
}
if (!gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE)) {
gst_buffer_unmap (inbuf, &inmap);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, (NULL),
("Failed to map buffer for writing"));
goto cleanup;
}
/* ENCRYPTING */
plaintext = inmap.data;
plaintext_len = inmap.size;
if (filter->padding)
plaintext_len += filter->padding - GST_AES_BLOCK_SIZE;
ciphertext = outmap.data;
if (filter->awaiting_first_buffer) {
if (!EVP_CipherInit_ex (filter->evp_ctx, filter->evp_cipher, NULL,
filter->key, filter->iv, TRUE)) {
GST_ERROR_OBJECT (filter, "Could not initialize openssl cipher");
goto cleanup;
}
if (filter->serialize_iv) {
memcpy (ciphertext, filter->iv, GST_AES_BLOCK_SIZE);
ciphertext += GST_AES_BLOCK_SIZE;
}
}
/* encrypt unpadded buffer */
if (!EVP_CipherUpdate (filter->evp_ctx, ciphertext,
&ciphertext_len, plaintext, plaintext_len)) {
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Cipher update failed."),
("Error while updating openssl cipher"));
goto cleanup;
} else if (filter->padding) {
gint temp;
guint k;
/* PKCS7 padding */
memset (filter->padded_block, filter->padding, GST_AES_BLOCK_SIZE);
for (k = 0; k < GST_AES_BLOCK_SIZE - filter->padding; ++k)
filter->padded_block[k] = plaintext[plaintext_len + k];
/* encrypt padding buffer */
if (!EVP_CipherUpdate (filter->evp_ctx,
ciphertext + ciphertext_len, &temp,
filter->padded_block, GST_AES_BLOCK_SIZE)) {
GST_ELEMENT_ERROR (filter, STREAM, FAILED, ("Cipher update failed."),
("Error while updating openssl cipher"));
goto cleanup;
} else {
g_assert (temp == GST_AES_BLOCK_SIZE);
ciphertext_len += GST_AES_BLOCK_SIZE;
plaintext_len += GST_AES_BLOCK_SIZE;
}
}
gst_buffer_unmap (inbuf, &inmap);
gst_buffer_unmap (outbuf, &outmap);
out_len = ciphertext_len + (filter->serialize_iv ? GST_AES_BLOCK_SIZE : 0);
gst_buffer_set_size (outbuf, out_len);
GST_LOG_OBJECT (filter,
"plaintext len: %d, ciphertext len: %d, padding: %d, output buffer length: %d",
plaintext_len, ciphertext_len, filter->padding, out_len);
ret = GST_FLOW_OK;
cleanup:
filter->awaiting_first_buffer = FALSE;
return ret;
}
static GstFlowReturn
gst_aes_enc_prepare_output_buffer (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer ** outbuf)
{
GstAesEnc *filter = GST_AES_ENC (base);
GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (base);
guint out_size = (guint) gst_buffer_get_size (inbuf);
g_mutex_lock (&filter->encoder_lock);
filter->locked_properties = TRUE;
if (filter->per_buffer_padding) {
/* pad to multiple of GST_AES_BLOCK_SIZE */
filter->padding =
GST_AES_BLOCK_SIZE - (out_size & (GST_AES_BLOCK_SIZE - 1));
out_size += filter->padding;
} else {
/* we need extra space at end of output buffer
* when we let OpenSSL handle PKCS7 padding */
out_size += GST_AES_BLOCK_SIZE;
}
/* add room for serialized IV at beginning of first output buffer */
if (filter->serialize_iv && filter->awaiting_first_buffer)
out_size += GST_AES_BLOCK_SIZE;
g_mutex_unlock (&filter->encoder_lock);
GST_LOG_OBJECT (filter,
"Input buffer size %d, output buffer size: %d. padding : %d",
(guint) gst_buffer_get_size (inbuf), out_size, filter->padding);
*outbuf = gst_buffer_new_allocate (NULL, out_size, NULL);
bclass->copy_metadata (base, inbuf, *outbuf);
return GST_FLOW_OK;
}
static gboolean
gst_aes_enc_start (GstBaseTransform * base)
{
GstAesEnc *filter = GST_AES_ENC (base);
GST_INFO_OBJECT (filter, "Starting");
if (!gst_aes_enc_openssl_init (filter)) {
GST_ERROR_OBJECT (filter, "OpenSSL initialization failed");
return FALSE;
}
GST_INFO_OBJECT (filter, "Start successful");
return TRUE;
}
static gboolean
gst_aes_enc_stop (GstBaseTransform * base)
{
GstAesEnc *filter = GST_AES_ENC (base);
GST_INFO_OBJECT (filter, "Stopping");
EVP_CIPHER_CTX_free (filter->evp_ctx);
return TRUE;
}
/* AesEnc helper functions */
static gboolean
gst_aes_enc_openssl_init (GstAesEnc * filter)
{
GST_DEBUG_OBJECT (filter, "Initializing with %s",
OpenSSL_version (OPENSSL_VERSION));
filter->evp_cipher =
EVP_get_cipherbyname (gst_aes_cipher_enum_to_string (filter->cipher));
if (!filter->evp_cipher) {
GST_ERROR_OBJECT (filter, "Could not get cipher by name from openssl");
return FALSE;
}
if (!(filter->evp_ctx = EVP_CIPHER_CTX_new ()))
return FALSE;
GST_LOG_OBJECT (filter, "Initialization successful");
return TRUE;
}

92
ext/aes/gstaesenc.h Normal file
View file

@ -0,0 +1,92 @@
/*
* GStreamer gstreamer-aesenc
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
#ifndef __GST_AES_ENC_H__
#define __GST_AES_ENC_H__
#include "gstaeshelper.h"
#include <gst/base/gstbasetransform.h>
G_BEGIN_DECLS
#define GST_TYPE_AES_ENC (gst_aes_enc_get_type())
G_DECLARE_FINAL_TYPE (GstAesEnc, gst_aes_enc, GST, AES_ENC, GstBaseTransform)
#define GST_AES_ENC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AES_ENC,GstAesEnc))
#define GST_AES_ENC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AES_ENC,GstAesEncClass))
#define GST_AES_ENC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_AES_ENC,GstAesEncClass))
#define GST_IS_AES_ENC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AES_ENC))
#define GST_IS_AES_ENC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AES_ENC))
struct _GstAesEnc
{
GstBaseTransform element;
/* Properties */
GstAesCipher cipher;
guchar key[EVP_MAX_KEY_LENGTH];
guchar iv[GST_AES_BLOCK_SIZE];
gboolean serialize_iv;
gboolean per_buffer_padding;
/* Element variables */
const EVP_CIPHER *evp_cipher;
EVP_CIPHER_CTX *evp_ctx;
guchar padding;
guchar padded_block[GST_AES_BLOCK_SIZE];
gboolean awaiting_first_buffer;
GMutex encoder_lock;
/* if TRUE, then properties cannot be changed */
gboolean locked_properties;
};
struct _GstAesEncClass
{
GstBaseTransformClass parent_class;
};
GST_ELEMENT_REGISTER_DECLARE (aesenc)
G_END_DECLS
#endif /* __GST_AES_ENC_H__ */

187
ext/aes/gstaeshelper.c Normal file
View file

@ -0,0 +1,187 @@
/*
* GStreamer gstreamer-aeshelper
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, LCC (C) 2016 RidgeRun, LCC <jose.jimenez@ridgerun.com>
* Copyright (C) 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstaeshelper.h"
GType
gst_aes_cipher_get_type (void)
{
static GType aes_cipher_type = 0;
if (g_once_init_enter (&aes_cipher_type)) {
static GEnumValue aes_cipher_types[] = {
{GST_AES_CIPHER_128_CBC, "AES 128 bit cipher key using CBC method",
"aes-128-cbc"},
{GST_AES_CIPHER_256_CBC,
"AES 256 bit cipher key using CBC method",
"aes-256-cbc"},
{0, NULL, NULL},
};
GType temp = g_enum_register_static ("GstAesCipher",
aes_cipher_types);
g_once_init_leave (&aes_cipher_type, temp);
}
return aes_cipher_type;
}
const gchar *
gst_aes_cipher_enum_to_string (GstAesCipher cipher)
{
switch (cipher) {
case GST_AES_CIPHER_128_CBC:
return "aes-128-cbc";
break;
case GST_AES_CIPHER_256_CBC:
return "aes-256-cbc";
break;
}
return "";
}
gchar
gst_aes_nibble_to_hex (gchar in)
{
return in < 10 ? in + 48 : in + 55;
}
/*
* gst_aes_bytearray2hexstring
*
* convert array of bytes to hex string
*
* @param in input byte array
* @param out allocated hex string for output
* @param len length of input byte array
*
* @return output hex string
*/
gchar *
gst_aes_bytearray2hexstring (const guchar * in, gchar * const out,
const gushort len)
{
gushort i;
gchar high;
gchar low;
for (i = 0; i < len; i++) {
high = (in[i] & 0xF0) >> 4;
low = in[i] & 0x0F;
out[i * 2] = gst_aes_nibble_to_hex (high);
out[i * 2 + 1] = gst_aes_nibble_to_hex (low);
}
out[len * 2] = 0; /* null terminate */
return out;
}
/*
* gst_aes_hexstring2bytearray
*
* convert hex string to array of bytes
*
* @param filter calling element
* @param in input hex string
* @param allocated byte array for output
*
* @return output byte array
*/
guint
gst_aes_hexstring2bytearray (GstElement * filter, const gchar * in,
guchar * out)
{
gchar byte_val;
guint hex_count = 0;
GST_LOG_OBJECT (filter, "Converting hex string to number");
g_return_val_if_fail (in && out, 0);
while (*in != 0) {
/* Compute fist half-byte */
if (*in >= 'A' && *in <= 'F') {
byte_val = (*in - 55) << 4;
} else if (*in >= 'a' && *in <= 'f') {
byte_val = (*in - 87) << 4;
} else if (*in >= '0' && *in <= '9') {
byte_val = (*in - 48) << 4;
} else {
return 0;
}
in++;
if (*in == 0) {
break;
}
/* Compute second half-byte */
if (*in >= 'A' && *in <= 'F') {
*out = (*in - 55) + byte_val;
} else if (*in >= 'a' && *in <= 'f') {
*out = (*in - 87) + byte_val;
} else if (*in >= '0' && *in <= '9') {
*out = (*in - 48) + byte_val;
} else {
return 0;
}
GST_LOG_OBJECT (filter, "ch: %c%c, hex: 0x%x", *(in - 1), *in, *out);
in++;
out++;
if (!in || !out)
return 0;
hex_count++;
}
GST_LOG_OBJECT (filter, "Hex string conversion successful");
return hex_count;
}

104
ext/aes/gstaeshelper.h Normal file
View file

@ -0,0 +1,104 @@
/*
* GStreamer gstreamer-aeshelper
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
#ifndef __GST_AES_HELPER_H__
#define __GST_AES_HELPER_H__
#include <gst/gst.h>
#include <openssl/conf.h>
#include <openssl/evp.h>
#include <openssl/err.h>
/**
* GstAesCipher:
* @GST_AES_CIPHER_128_CBC: AES cipher with 128 bit key using CBC
* @GST_AES_CIPHER_256_CBC: AES cipher with 256 bit key using CBC
*
* Type of AES cipher to use
*
* Since: 1.20
*/
typedef enum {
GST_AES_CIPHER_128_CBC,
GST_AES_CIPHER_256_CBC
} GstAesCipher;
#define GST_AES_DEFAULT_SERIALIZE_IV FALSE
#define GST_AES_DEFAULT_KEY ""
#define GST_AES_DEFAULT_IV ""
#define GST_AES_DEFAULT_CIPHER_MODE GST_AES_CIPHER_128_CBC
#define GST_AES_PER_BUFFER_PADDING_DEFAULT TRUE
#define GST_AES_BLOCK_SIZE 16
/* only 128 or 256 bit key length is supported */
#define GST_AES_MAX_KEY_SIZE 32
enum
{
PROP_0,
PROP_CIPHER,
PROP_SERIALIZE_IV,
PROP_KEY,
PROP_IV,
PROP_PER_BUFFER_PADDING
};
G_BEGIN_DECLS
GType gst_aes_cipher_get_type (void);
#define GST_TYPE_AES_CIPHER (gst_aes_cipher_get_type ())
const gchar* gst_aes_cipher_enum_to_string (GstAesCipher cipher);
gchar
gst_aes_nibble_to_hex (gchar in);
gchar *
gst_aes_bytearray2hexstring (const guchar * in, gchar * const out,
const gushort len);
guint
gst_aes_hexstring2bytearray (GstElement * filter, const gchar * in,
guchar * out);
G_END_DECLS
#endif /* __GST_AES_HELPER_H__ */

33
ext/aes/meson.build Normal file
View file

@ -0,0 +1,33 @@
aes_sources = [
'gstaes.c',
'gstaeshelper.c',
'gstaesenc.c',
'gstaesdec.c',
]
aes_option = get_option('aes')
if aes_option.disabled()
subdir_done()
endif
aes_cargs = []
aes_dep = dependency('openssl', required : get_option('aes'))
if aes_dep.found()
aes_cargs += ['-DHAVE_OPENSSL']
else
subdir_done()
endif
gstaes = library('gstaes',
aes_sources,
c_args : gst_plugins_bad_args + aes_cargs,
link_args : noseh_link_args,
include_directories : [configinc],
dependencies : [gstpbutils_dep, gstvideo_dep,
aes_dep, gio_dep, libm],
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstaes, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstaes]
aes_dep = declare_dependency(include_directories : include_directories('.'))

1
ext/meson.build
View file

@ -1,3 +1,4 @@
subdir('aes')
subdir('assrender')
subdir('aom')
subdir('avtp')

1
meson_options.txt
View file

@ -77,6 +77,7 @@ option('wayland', type : 'feature', value : 'auto', description : 'Wayland plugi
option('x11', type : 'feature', value : 'auto', description : 'X11 support in Vulkan, GL and rfb plugins')
# Feature options for plugins that need external deps
option('aes', type : 'feature', value : 'auto', description : 'AES encryption/decryption plugin')
option('aom', type : 'feature', value : 'auto', description : 'AOM AV1 video codec plugin')
option('avtp', type : 'feature', value : 'auto', description : 'Audio/Video Transport Protocol (AVTP) plugin')
option('androidmedia', type : 'feature', value : 'auto', description : 'Video capture and codec plugins for Android')

181
tests/check/elements/aesdec.c Normal file
View file

@ -0,0 +1,181 @@
/* GStreamer
*
* Copyright (C) 2021 Aaron Boxer <aaron.boxer@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <gst/check/gstharness.h>
unsigned char plain16[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
};
unsigned char enc16[] = {
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0x40, 0xee, 0xfd, 0xcb, 0x3b, 0xbe, 0xf3, 0x0b,
0xa7, 0xaf, 0x5e, 0x20, 0x87, 0x78, 0x8a, 0x45
};
unsigned char enc16_serialize[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0x40, 0xee, 0xfd, 0xcb, 0x3b, 0xbe, 0xf3, 0x0b,
0xa7, 0xaf, 0x5e, 0x20, 0x87, 0x78, 0x8a, 0x45
};
unsigned char plain17[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10
};
unsigned char enc17[] = {
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0xe1, 0xe0, 0xaa, 0xf4, 0xe8, 0x29, 0x7c, 0x9f,
0xc4, 0xe3, 0x11, 0x4a, 0x97, 0x58, 0x9c, 0xa5
};
unsigned char enc17_serialize[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0xe1, 0xe0, 0xaa, 0xf4, 0xe8, 0x29, 0x7c, 0x9f,
0xc4, 0xe3, 0x11, 0x4a, 0x97, 0x58, 0x9c, 0xa5
};
static void
run (gboolean per_buffer_padding,
gboolean serialize_iv,
guchar * in_ref, gsize in_ref_len, guchar * out_ref, gsize out_ref_len)
{
GstHarness *h;
GstBuffer *buf, *outbuf;
gint out_ref_len_truncated = out_ref_len & ~0xF;
h = gst_harness_new ("aesdec");
gst_harness_set_src_caps_str (h, "video/x-raw");
g_object_set (h->element,
"key", "1f9423681beb9a79215820f6bda73d0f",
"iv", "e9aa8e834d8d70b7e0d254ff670dd718",
"per-buffer-padding", per_buffer_padding,
"serialize-iv", serialize_iv, NULL);
buf = gst_buffer_new_and_alloc (in_ref_len);
gst_buffer_fill (buf, 0, in_ref, in_ref_len);
outbuf = gst_harness_push_and_pull (h, gst_buffer_ref (buf));
fail_unless (gst_buffer_memcmp (outbuf, 0, out_ref,
out_ref_len_truncated) == 0);
gst_buffer_unref (outbuf);
gst_buffer_unref (buf);
if (!per_buffer_padding) {
gint final_bytes = out_ref_len & 0xF;
if (final_bytes != 0) {
gst_harness_push_event (h, gst_event_new_eos ());
outbuf = gst_harness_try_pull (h);
fail_unless (outbuf);
fail_unless (gst_buffer_get_size (outbuf) == final_bytes);
fail_unless (gst_buffer_memcmp (outbuf, 0,
out_ref + out_ref_len_truncated, final_bytes) == 0);
gst_buffer_unref (outbuf);
}
}
gst_harness_teardown (h);
}
GST_START_TEST (text16)
{
run (TRUE, FALSE, enc16, sizeof (enc16), plain16, sizeof (plain16));
}
GST_END_TEST;
GST_START_TEST (text16_serialize)
{
run (TRUE, TRUE, enc16_serialize, sizeof (enc16_serialize), plain16,
sizeof (plain16));
}
GST_END_TEST;
GST_START_TEST (text16_serialize_no_per_buffer_padding)
{
run (FALSE, TRUE, enc16_serialize, sizeof (enc16_serialize), plain16,
sizeof (plain16));
}
GST_END_TEST;
GST_START_TEST (text17)
{
run (TRUE, FALSE, enc17, sizeof (enc17), plain17, sizeof (plain17));
}
GST_END_TEST;
GST_START_TEST (text17_serialize)
{
run (TRUE, TRUE, enc17_serialize, sizeof (enc17_serialize), plain17,
sizeof (plain17));
}
GST_END_TEST;
GST_START_TEST (text17_serialize_no_per_buffer_padding)
{
run (FALSE, TRUE, enc17_serialize, sizeof (enc17_serialize), plain17,
sizeof (plain17));
}
GST_END_TEST;
static Suite *
aesdec_suite (void)
{
Suite *s = suite_create ("aesdec");
TCase *tc = tcase_create ("general");
suite_add_tcase (s, tc);
tcase_add_test (tc, text16);
tcase_add_test (tc, text16_serialize);
tcase_add_test (tc, text16_serialize_no_per_buffer_padding);
tcase_add_test (tc, text17);
tcase_add_test (tc, text17_serialize);
tcase_add_test (tc, text17_serialize_no_per_buffer_padding);
return s;
}
GST_CHECK_MAIN (aesdec);

179
tests/check/elements/aesenc.c Normal file
View file

@ -0,0 +1,179 @@
/* GStreamer
*
* Copyright (C) 2021 Aaron Boxer <aaron.boxer@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <gst/check/gstharness.h>
unsigned char plain16[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
};
unsigned char enc16[] = {
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0x40, 0xee, 0xfd, 0xcb, 0x3b, 0xbe, 0xf3, 0x0b,
0xa7, 0xaf, 0x5e, 0x20, 0x87, 0x78, 0x8a, 0x45
};
unsigned char enc16_serialize[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0x40, 0xee, 0xfd, 0xcb, 0x3b, 0xbe, 0xf3, 0x0b,
0xa7, 0xaf, 0x5e, 0x20, 0x87, 0x78, 0x8a, 0x45
};
unsigned char enc16_serialize_no_per_buffer_padding[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27
};
unsigned char plain17[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10
};
unsigned char enc17[] = {
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0xe1, 0xe0, 0xaa, 0xf4, 0xe8, 0x29, 0x7c, 0x9f,
0xc4, 0xe3, 0x11, 0x4a, 0x97, 0x58, 0x9c, 0xa5
};
unsigned char enc17_serialize[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
0xe1, 0xe0, 0xaa, 0xf4, 0xe8, 0x29, 0x7c, 0x9f,
0xc4, 0xe3, 0x11, 0x4a, 0x97, 0x58, 0x9c, 0xa5
};
unsigned char enc17_serialize_no_per_buffer_padding[] = {
0xe9, 0xaa, 0x8e, 0x83, 0x4d, 0x8d, 0x70, 0xb7,
0xe0, 0xd2, 0x54, 0xff, 0x67, 0x0d, 0xd7, 0x18,
0xfc, 0x49, 0x14, 0xc6, 0xee, 0x06, 0xe1, 0xb1,
0xc7, 0xa2, 0x3a, 0x05, 0x13, 0x15, 0x29, 0x27,
};
static void
run (gboolean per_buffer_padding,
gboolean serialize_iv,
guchar * in_ref, gsize in_ref_len, guchar * out_ref, gsize out_ref_len)
{
GstHarness *h;
GstBuffer *buf, *outbuf;
h = gst_harness_new ("aesenc");
gst_harness_set_src_caps_str (h, "video/x-raw");
g_object_set (h->element,
"key", "1f9423681beb9a79215820f6bda73d0f",
"iv", "e9aa8e834d8d70b7e0d254ff670dd718",
"per-buffer-padding", per_buffer_padding,
"serialize-iv", serialize_iv, NULL);
buf = gst_buffer_new_and_alloc (in_ref_len);
gst_buffer_fill (buf, 0, in_ref, in_ref_len);
outbuf = gst_harness_push_and_pull (h, gst_buffer_ref (buf));
fail_unless (gst_buffer_memcmp (outbuf, 0, out_ref, out_ref_len) == 0);
gst_buffer_unref (outbuf);
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_START_TEST (text16)
{
run (TRUE, FALSE, plain16, sizeof (plain16), enc16, sizeof (enc16));
}
GST_END_TEST;
GST_START_TEST (text16_serialize)
{
run (TRUE, TRUE, plain16, sizeof (plain16), enc16_serialize,
sizeof (enc16_serialize));
}
GST_END_TEST;
GST_START_TEST (text16_serialize_no_per_buffer_padding)
{
run (FALSE, TRUE, plain16, sizeof (plain16),
enc16_serialize_no_per_buffer_padding,
sizeof (enc16_serialize_no_per_buffer_padding));
}
GST_END_TEST;
GST_START_TEST (text17)
{
run (TRUE, FALSE, plain17, sizeof (plain17), enc17, sizeof (enc17));
}
GST_END_TEST;
GST_START_TEST (text17_serialize)
{
run (TRUE, TRUE, plain17, sizeof (plain17), enc17_serialize,
sizeof (enc17_serialize));
}
GST_END_TEST;
GST_START_TEST (text17_serialize_no_per_buffer_padding)
{
run (FALSE, TRUE, plain17, sizeof (plain17),
enc17_serialize_no_per_buffer_padding,
sizeof (enc17_serialize_no_per_buffer_padding));
}
GST_END_TEST;
static Suite *
aesenc_suite (void)
{
Suite *s = suite_create ("aesenc");
TCase *tc = tcase_create ("general");
suite_add_tcase (s, tc);
tcase_add_test (tc, text16);
tcase_add_test (tc, text16_serialize);
tcase_add_test (tc, text16_serialize_no_per_buffer_padding);
tcase_add_test (tc, text17);
tcase_add_test (tc, text17_serialize);
tcase_add_test (tc, text17_serialize_no_per_buffer_padding);
return s;
}
GST_CHECK_MAIN (aesenc);

3
tests/check/meson.build
View file

@ -18,9 +18,12 @@ nalutils_dep = gstcodecparsers_dep.partial_dependency (compile_args: true, inclu
enable_gst_play_tests = get_option('gst_play_tests')
libsoup_dep = dependency('libsoup-2.4', version : '>=2.48', required : enable_gst_play_tests,
fallback : ['libsoup', 'libsoup_dep'])
aes_dep = dependency('openssl', required : false)
# name, condition when to skip the test and extra dependencies
base_tests = [
[['elements/aesenc.c'], false, [aes_dep]],
[['elements/aesdec.c'], false, [aes_dep]],
[['elements/aiffparse.c']],
[['elements/asfmux.c']],
[['elements/autoconvert.c']],