1 /* 2 * GStreamer - GStreamer SRTP encoder 3 * 4 * Copyright 2011-2013 Collabora Ltd. 5 * @author: Olivier Crete <olivier.crete@collabora.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 * 25 * Alternatively, the contents of this file may be used under the 26 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 27 * which case the following provisions apply instead of the ones 28 * mentioned above: 29 * 30 * This library is free software; you can redistribute it and/or 31 * modify it under the terms of the GNU Library General Public 32 * License as published by the Free Software Foundation; either 33 * version 2 of the License, or (at your option) any later version. 34 * 35 * This library is distributed in the hope that it will be useful, 36 * but WITHOUT ANY WARRANTY; without even the implied warranty of 37 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 38 * Library General Public License for more details. 39 * 40 * You should have received a copy of the GNU Library General Public 41 * License along with this library; if not, write to the 42 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 43 * Boston, MA 02111-1307, USA. 44 */ 45 #ifndef __GST_SRTP_H__ 46 #define __GST_SRTP_H__ 47 48 #ifdef HAVE_CONFIG_H 49 #include <config.h> 50 #endif 51 52 #include "gstsrtpenums.h" 53 #include "gstsrtp-enumtypes.h" 54 55 #include <gst/gst.h> 56 57 #ifdef HAVE_SRTP2 58 # include <srtp2/srtp.h> 59 # include <srtp2/crypto_types.h> 60 #else 61 # include <srtp/srtp.h> 62 # include <srtp/srtp_priv.h> 63 # include <srtp/crypto_types.h> 64 65 # define srtp_crypto_policy_t crypto_policy_t 66 # define SRTP_AES_ICM_128 AES_ICM 67 # define SRTP_AES_ICM_256 AES_ICM 68 # define SRTP_AES_GCM_128 AES_128_GCM 69 # define SRTP_AES_GCM_256 AES_256_GCM 70 # define SRTP_NULL_CIPHER NULL_CIPHER 71 # define SRTP_AES_ICM_128_KEY_LEN_WSALT 30 72 # define SRTP_AES_ICM_256_KEY_LEN_WSALT 46 73 # define SRTP_AES_GCM_128_KEY_LEN_WSALT AES_128_GCM_KEYSIZE_WSALT 74 # define SRTP_AES_GCM_256_KEY_LEN_WSALT AES_256_GCM_KEYSIZE_WSALT 75 # define SRTP_HMAC_SHA1 HMAC_SHA1 76 # define SRTP_NULL_AUTH NULL_AUTH 77 # define srtp_err_status_t err_status_t 78 # define srtp_err_status_ok err_status_ok 79 # define srtp_err_status_bad_param err_status_bad_param 80 # define srtp_err_status_replay_fail err_status_replay_fail 81 # define srtp_err_status_replay_old err_status_replay_old 82 # define srtp_err_status_key_expired err_status_key_expired 83 # define srtp_err_status_auth_fail err_status_auth_fail 84 # define srtp_err_status_cipher_fail err_status_cipher_fail 85 # define srtp_err_status_fail err_status_fail 86 87 srtp_err_status_t srtp_set_stream_roc (srtp_t session, guint32 ssrc, 88 guint32 roc); 89 srtp_err_status_t srtp_get_stream_roc (srtp_t session, guint32 ssrc, 90 guint32 * roc); 91 #endif 92 93 void gst_srtp_init_event_reporter (void); 94 gboolean gst_srtp_get_soft_limit_reached (void); 95 96 gboolean rtcp_buffer_get_ssrc (GstBuffer * buf, guint32 * ssrc); 97 98 const gchar *enum_nick_from_value (GType enum_gtype, gint value); 99 gint enum_value_from_nick (GType enum_gtype, const gchar *nick); 100 101 void set_crypto_policy_cipher_auth (GstSrtpCipherType cipher, 102 GstSrtpAuthType auth, srtp_crypto_policy_t * policy); 103 104 guint cipher_key_size (GstSrtpCipherType cipher); 105 106 #endif /* __GST_SRTP_H__ */ 107