| File: | src/switch_rtp.c |
| Location: | line 559, column 4 |
| Description: | Value stored to 'len' is never read |
| 1 | /* |
| 2 | * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application |
| 3 | * Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org> |
| 4 | * |
| 5 | * Version: MPL 1.1 |
| 6 | * |
| 7 | * The contents of this file are subject to the Mozilla Public License Version |
| 8 | * 1.1 (the "License"); you may not use this file except in compliance with |
| 9 | * the License. You may obtain a copy of the License at |
| 10 | * http://www.mozilla.org/MPL/ |
| 11 | * |
| 12 | * Software distributed under the License is distributed on an "AS IS" basis, |
| 13 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 14 | * for the specific language governing rights and limitations under the |
| 15 | * License. |
| 16 | * |
| 17 | * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application |
| 18 | * |
| 19 | * The Initial Developer of the Original Code is |
| 20 | * Anthony Minessale II <anthm@freeswitch.org> |
| 21 | * Portions created by the Initial Developer are Copyright (C) |
| 22 | * the Initial Developer. All Rights Reserved. |
| 23 | * |
| 24 | * Contributor(s): |
| 25 | * |
| 26 | * Anthony Minessale II <anthm@freeswitch.org> |
| 27 | * Marcel Barbulescu <marcelbarbulescu@gmail.com> |
| 28 | * Seven Du <dujinfang@gmail.com> |
| 29 | * |
| 30 | * switch_rtp.c -- RTP |
| 31 | * |
| 32 | */ |
| 33 | //#define DEBUG_2833 |
| 34 | //#define RTP_DEBUG_WRITE_DELTA |
| 35 | //#define DEBUG_MISSED_SEQ |
| 36 | //#define DEBUG_EXTRA |
| 37 | //#define DEBUG_RTCP |
| 38 | |
| 39 | #include <switch.h> |
| 40 | #ifndef _MSC_VER |
| 41 | #include <switch_private.h> |
| 42 | #endif |
| 43 | #include <switch_stun.h> |
| 44 | #include <apr_network_io.h> |
| 45 | #undef PACKAGE_NAME"srtp" |
| 46 | #undef PACKAGE_STRING"srtp 1.4.2" |
| 47 | #undef PACKAGE_TARNAME"srtp" |
| 48 | #undef PACKAGE_VERSION"1.4.2" |
| 49 | #undef PACKAGE_BUGREPORT"mcgrew@cisco.com" |
| 50 | #undef VERSION"1.4.2" |
| 51 | #undef PACKAGE"srtp" |
| 52 | #undef inlineinline |
| 53 | #include <datatypes.h> |
| 54 | #include <srtp.h> |
| 55 | #include <srtp_priv.h> |
| 56 | #include <switch_ssl.h> |
| 57 | |
| 58 | #define FIR_COUNTDOWN50 50 |
| 59 | #define JITTER_LEAD_FRAMES10 10 |
| 60 | #define READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++ switch_mutex_lock(rtp_session->read_mutex); rtp_session->reading++ |
| 61 | #define READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading-- switch_mutex_unlock(rtp_session->read_mutex); rtp_session->reading-- |
| 62 | #define WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++ switch_mutex_lock(rtp_session->write_mutex); rtp_session->writing++ |
| 63 | #define WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing-- switch_mutex_unlock(rtp_session->write_mutex); rtp_session->writing-- |
| 64 | |
| 65 | #define RTP_STUN_FREQ1000000 1000000 |
| 66 | #define rtp_header_len12 12 |
| 67 | #define RTP_START_PORT16384 16384 |
| 68 | #define RTP_END_PORT32768 32768 |
| 69 | #define MASTER_KEY_LEN30 30 |
| 70 | #define RTP_MAGIC_NUMBER42 42 |
| 71 | #define WARN_SRTP_ERRS10 10 |
| 72 | #define MAX_SRTP_ERRS100 100 |
| 73 | #define NTP_TIME_OFFSET2208988800UL 2208988800UL |
| 74 | |
| 75 | #define DTMF_SANITY(rtp_session->one_second * 30) (rtp_session->one_second * 30) |
| 76 | |
| 77 | #define rtp_session_name(_rtp_session)_rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (_rtp_session->session)) : "-" _rtp_session->session ? switch_core_session_get_name(_rtp_session->session)switch_channel_get_name(switch_core_session_get_channel(_rtp_session ->session)) : "-" |
| 78 | |
| 79 | static switch_port_t START_PORT = RTP_START_PORT16384; |
| 80 | static switch_port_t END_PORT = RTP_END_PORT32768; |
| 81 | static switch_mutex_t *port_lock = NULL((void*)0); |
| 82 | static void do_flush(switch_rtp_t *rtp_session, int force); |
| 83 | |
| 84 | typedef srtp_hdr_t rtp_hdr_t; |
| 85 | |
| 86 | #ifdef ENABLE_ZRTP |
| 87 | #include "zrtp.h" |
| 88 | static zrtp_global_t *zrtp_global; |
| 89 | #ifndef WIN32 |
| 90 | static zrtp_zid_t zid = { "FreeSWITCH01" }; |
| 91 | #else |
| 92 | static zrtp_zid_t zid = { "FreeSWITCH0" }; |
| 93 | #endif |
| 94 | static int zrtp_on = 0; |
| 95 | #define ZRTP_MITM_TRIES 100 |
| 96 | #endif |
| 97 | |
| 98 | #ifdef _MSC_VER |
| 99 | #pragma pack(4) |
| 100 | #endif |
| 101 | |
| 102 | #ifdef _MSC_VER |
| 103 | #pragma pack() |
| 104 | #define ENABLE_SRTP1 |
| 105 | #endif |
| 106 | |
| 107 | static switch_hash_t *alloc_hash = NULL((void*)0); |
| 108 | |
| 109 | typedef struct { |
| 110 | srtp_hdr_t header; |
| 111 | char body[SWITCH_RTP_MAX_BUF_LEN16384]; |
| 112 | switch_rtp_hdr_ext_t *ext; |
| 113 | char *ebody; |
| 114 | } rtp_msg_t; |
| 115 | |
| 116 | #define RTP_BODY(_s)(char *) (_s->recv_msg.ebody ? _s->recv_msg.ebody : _s-> recv_msg.body) (char *) (_s->recv_msg.ebody ? _s->recv_msg.ebody : _s->recv_msg.body) |
| 117 | |
| 118 | typedef struct { |
| 119 | uint32_t ssrc; |
| 120 | uint8_t seq; |
| 121 | uint8_t r1; |
| 122 | uint8_t r2; |
| 123 | uint8_t r3; |
| 124 | } rtcp_fir_t; |
| 125 | |
| 126 | #ifdef _MSC_VER |
| 127 | #pragma pack(push, r1, 1) |
| 128 | #endif |
| 129 | |
| 130 | #if SWITCH_BYTE_ORDER1234 == __BIG_ENDIAN4321 |
| 131 | typedef struct { |
| 132 | unsigned version:2; |
| 133 | unsigned p:1; |
| 134 | unsigned fmt:5; |
| 135 | unsigned pt:8; |
| 136 | unsigned length:16; |
| 137 | uint32_t send_ssrc; |
| 138 | uint32_t recv_ssrc; |
| 139 | } switch_rtcp_ext_hdr_t; |
| 140 | |
| 141 | #else /* BIG_ENDIAN */ |
| 142 | |
| 143 | typedef struct { |
| 144 | unsigned fmt:5; |
| 145 | unsigned p:1; |
| 146 | unsigned version:2; |
| 147 | unsigned pt:8; |
| 148 | unsigned length:16; |
| 149 | uint32_t send_ssrc; |
| 150 | uint32_t recv_ssrc; |
| 151 | } switch_rtcp_ext_hdr_t; |
| 152 | |
| 153 | #endif |
| 154 | |
| 155 | #ifdef _MSC_VER |
| 156 | #pragma pack(pop, r1) |
| 157 | #endif |
| 158 | |
| 159 | |
| 160 | typedef struct { |
| 161 | switch_rtcp_ext_hdr_t header; |
| 162 | char body[SWITCH_RTCP_MAX_BUF_LEN16384]; |
| 163 | } rtcp_ext_msg_t; |
| 164 | |
| 165 | typedef struct { |
| 166 | switch_rtcp_hdr_t header; |
| 167 | char body[SWITCH_RTCP_MAX_BUF_LEN16384]; |
| 168 | } rtcp_msg_t; |
| 169 | |
| 170 | |
| 171 | typedef enum { |
| 172 | VAD_FIRE_TALK = (1 << 0), |
| 173 | VAD_FIRE_NOT_TALK = (1 << 1) |
| 174 | } vad_talk_mask_t; |
| 175 | |
| 176 | struct switch_rtp_vad_data { |
| 177 | switch_core_session_t *session; |
| 178 | switch_codec_t vad_codec; |
| 179 | switch_codec_t *read_codec; |
| 180 | uint32_t bg_level; |
| 181 | uint32_t bg_count; |
| 182 | uint32_t bg_len; |
| 183 | uint32_t diff_level; |
| 184 | uint8_t hangunder; |
| 185 | uint8_t hangunder_hits; |
| 186 | uint8_t hangover; |
| 187 | uint8_t hangover_hits; |
| 188 | uint8_t cng_freq; |
| 189 | uint8_t cng_count; |
| 190 | switch_vad_flag_t flags; |
| 191 | uint32_t ts; |
| 192 | uint8_t start; |
| 193 | uint8_t start_count; |
| 194 | uint8_t scan_freq; |
| 195 | time_t next_scan; |
| 196 | int fire_events; |
| 197 | }; |
| 198 | |
| 199 | struct switch_rtp_rfc2833_data { |
| 200 | switch_queue_t *dtmf_queue; |
| 201 | char out_digit; |
| 202 | unsigned char out_digit_packet[4]; |
| 203 | unsigned int out_digit_sofar; |
| 204 | unsigned int out_digit_sub_sofar; |
| 205 | unsigned int out_digit_dur; |
| 206 | uint16_t in_digit_seq; |
| 207 | uint32_t in_digit_ts; |
| 208 | uint32_t last_in_digit_ts; |
| 209 | uint32_t in_digit_sanity; |
| 210 | uint32_t in_interleaved; |
| 211 | uint32_t timestamp_dtmf; |
| 212 | uint16_t last_duration; |
| 213 | uint32_t flip; |
| 214 | char first_digit; |
| 215 | char last_digit; |
| 216 | switch_queue_t *dtmf_inqueue; |
| 217 | switch_mutex_t *dtmf_mutex; |
| 218 | uint8_t in_digit_queued; |
| 219 | }; |
| 220 | |
| 221 | typedef struct { |
| 222 | char *ice_user; |
| 223 | char *user_ice; |
| 224 | char *luser_ice; |
| 225 | char *pass; |
| 226 | char *rpass; |
| 227 | switch_sockaddr_t *addr; |
| 228 | uint32_t funny_stun; |
| 229 | switch_time_t next_run; |
| 230 | switch_core_media_ice_type_t type; |
| 231 | ice_t *ice_params; |
| 232 | ice_proto_t proto; |
| 233 | uint8_t sending; |
| 234 | uint8_t ready; |
| 235 | uint8_t rready; |
| 236 | int missed_count; |
| 237 | char last_sent_id[13]; |
| 238 | } switch_rtp_ice_t; |
| 239 | |
| 240 | struct switch_rtp; |
| 241 | |
| 242 | typedef struct switch_dtls_s { |
| 243 | /* DTLS */ |
| 244 | SSL_CTX *ssl_ctx; |
| 245 | SSL *ssl; |
| 246 | BIO *read_bio; |
| 247 | BIO *write_bio; |
| 248 | dtls_fingerprint_t *local_fp; |
| 249 | dtls_fingerprint_t *remote_fp; |
| 250 | dtls_state_t state; |
| 251 | dtls_state_t last_state; |
| 252 | uint8_t new_state; |
| 253 | dtls_type_t type; |
| 254 | switch_size_t bytes; |
| 255 | void *data; |
| 256 | switch_socket_t *sock_output; |
| 257 | switch_sockaddr_t *remote_addr; |
| 258 | char *rsa; |
| 259 | char *pvt; |
| 260 | char *ca; |
| 261 | char *pem; |
| 262 | struct switch_rtp *rtp_session; |
| 263 | } switch_dtls_t; |
| 264 | |
| 265 | typedef int (*dtls_state_handler_t)(switch_rtp_t *, switch_dtls_t *); |
| 266 | |
| 267 | |
| 268 | static int dtls_state_handshake(switch_rtp_t *rtp_session, switch_dtls_t *dtls); |
| 269 | static int dtls_state_ready(switch_rtp_t *rtp_session, switch_dtls_t *dtls); |
| 270 | static int dtls_state_setup(switch_rtp_t *rtp_session, switch_dtls_t *dtls); |
| 271 | static int dtls_state_fail(switch_rtp_t *rtp_session, switch_dtls_t *dtls); |
| 272 | |
| 273 | dtls_state_handler_t dtls_states[DS_INVALID] = {dtls_state_handshake, dtls_state_setup, dtls_state_ready, dtls_state_fail}; |
| 274 | |
| 275 | typedef struct ts_normalize_s { |
| 276 | uint32_t last_ssrc; |
| 277 | uint32_t last_frame; |
| 278 | uint32_t ts; |
| 279 | uint32_t delta; |
| 280 | uint32_t delta_ct; |
| 281 | uint32_t delta_ttl; |
| 282 | } ts_normalize_t; |
| 283 | |
| 284 | struct switch_rtp { |
| 285 | /* |
| 286 | * Two sockets are needed because we might be transcoding protocol families |
| 287 | * (e.g. receive over IPv4 and send over IPv6). In case the protocol |
| 288 | * families are equal, sock_input == sock_output and only one socket is |
| 289 | * used. |
| 290 | */ |
| 291 | switch_socket_t *sock_input, *sock_output, *rtcp_sock_input, *rtcp_sock_output; |
| 292 | switch_pollfd_t *read_pollfd, *rtcp_read_pollfd; |
| 293 | switch_pollfd_t *jb_pollfd; |
| 294 | |
| 295 | switch_sockaddr_t *local_addr, *rtcp_local_addr; |
| 296 | rtp_msg_t send_msg; |
| 297 | rtcp_msg_t rtcp_send_msg; |
| 298 | rtcp_ext_msg_t rtcp_ext_send_msg; |
| 299 | uint8_t fir_seq; |
| 300 | uint16_t fir_countdown; |
| 301 | ts_normalize_t ts_norm; |
| 302 | switch_sockaddr_t *remote_addr, *rtcp_remote_addr; |
| 303 | rtp_msg_t recv_msg; |
| 304 | rtcp_msg_t rtcp_recv_msg; |
| 305 | rtcp_msg_t *rtcp_recv_msg_p; |
| 306 | |
| 307 | uint32_t autoadj_window; |
| 308 | uint32_t autoadj_threshold; |
| 309 | uint32_t autoadj_tally; |
| 310 | |
| 311 | srtp_ctx_t *send_ctx[2]; |
| 312 | srtp_ctx_t *recv_ctx[2]; |
| 313 | |
| 314 | srtp_policy_t send_policy[2]; |
| 315 | srtp_policy_t recv_policy[2]; |
| 316 | |
| 317 | uint32_t srtp_errs[2]; |
| 318 | uint32_t srctp_errs[2]; |
| 319 | |
| 320 | |
| 321 | int srtp_idx_rtp; |
| 322 | int srtp_idx_rtcp; |
| 323 | |
| 324 | switch_dtls_t *dtls; |
| 325 | switch_dtls_t *rtcp_dtls; |
| 326 | |
| 327 | uint16_t seq; |
| 328 | uint32_t ssrc; |
| 329 | uint32_t remote_ssrc; |
| 330 | int8_t sending_dtmf; |
| 331 | uint8_t need_mark; |
| 332 | switch_payload_t payload; |
| 333 | switch_rtp_invalid_handler_t invalid_handler; |
| 334 | void *private_data; |
| 335 | uint32_t ts; |
| 336 | uint32_t last_write_ts; |
| 337 | uint32_t last_read_ts; |
| 338 | uint32_t last_cng_ts; |
| 339 | uint32_t last_write_samplecount; |
| 340 | uint32_t delay_samples; |
| 341 | uint32_t next_write_samplecount; |
| 342 | uint32_t max_next_write_samplecount; |
| 343 | uint32_t queue_delay; |
| 344 | switch_time_t last_write_timestamp; |
| 345 | uint32_t flags[SWITCH_RTP_FLAG_INVALID]; |
| 346 | switch_memory_pool_t *pool; |
| 347 | switch_sockaddr_t *from_addr, *rtcp_from_addr; |
| 348 | char *rx_host; |
| 349 | switch_port_t rx_port; |
| 350 | switch_rtp_ice_t ice; |
| 351 | switch_rtp_ice_t rtcp_ice; |
| 352 | char *timer_name; |
| 353 | char *local_host_str; |
| 354 | char *remote_host_str; |
| 355 | char *eff_remote_host_str; |
| 356 | switch_time_t last_stun; |
| 357 | uint32_t samples_per_interval; |
| 358 | uint32_t samples_per_second; |
| 359 | uint32_t conf_samples_per_interval; |
| 360 | uint16_t rtcp_send_rate; |
| 361 | uint32_t rsamples_per_interval; |
| 362 | uint32_t ms_per_packet; |
| 363 | uint32_t one_second; |
| 364 | uint32_t consecutive_flaws; |
| 365 | uint32_t jitter_lead; |
| 366 | double old_mean; |
| 367 | switch_time_t next_stat_check_time; |
| 368 | switch_port_t local_port; |
| 369 | switch_port_t remote_port; |
| 370 | switch_port_t eff_remote_port; |
| 371 | switch_port_t remote_rtcp_port; |
| 372 | |
| 373 | struct switch_rtp_vad_data vad_data; |
| 374 | struct switch_rtp_rfc2833_data dtmf_data; |
| 375 | switch_payload_t te; |
| 376 | switch_payload_t recv_te; |
| 377 | switch_payload_t cng_pt; |
| 378 | switch_mutex_t *flag_mutex; |
| 379 | switch_mutex_t *read_mutex; |
| 380 | switch_mutex_t *write_mutex; |
| 381 | switch_timer_t timer; |
| 382 | uint8_t ready; |
| 383 | uint8_t cn; |
| 384 | stfu_instance_t *jb; |
| 385 | uint32_t max_missed_packets; |
| 386 | uint32_t missed_count; |
| 387 | rtp_msg_t write_msg; |
| 388 | switch_rtp_crypto_key_t *crypto_keys[SWITCH_RTP_CRYPTO_MAX]; |
| 389 | int reading; |
| 390 | int writing; |
| 391 | char *stun_ip; |
| 392 | switch_port_t stun_port; |
| 393 | int from_auto; |
| 394 | uint32_t cng_count; |
| 395 | switch_rtp_bug_flag_t rtp_bugs; |
| 396 | switch_rtp_stats_t stats; |
| 397 | uint32_t hot_hits; |
| 398 | uint32_t sync_packets; |
| 399 | int rtcp_interval; |
| 400 | switch_time_t next_rtcp_send; |
| 401 | switch_bool_t rtcp_fresh_frame; |
| 402 | |
| 403 | switch_time_t send_time; |
| 404 | switch_byte_t auto_adj_used; |
| 405 | uint8_t pause_jb; |
| 406 | uint16_t last_seq; |
| 407 | switch_time_t last_read_time; |
| 408 | switch_size_t last_flush_packet_count; |
| 409 | uint32_t interdigit_delay; |
| 410 | switch_core_session_t *session; |
| 411 | payload_map_t **pmaps; |
| 412 | payload_map_t *pmap_tail; |
| 413 | |
| 414 | #ifdef ENABLE_ZRTP |
| 415 | zrtp_session_t *zrtp_session; |
| 416 | zrtp_profile_t *zrtp_profile; |
| 417 | zrtp_stream_t *zrtp_stream; |
| 418 | int zrtp_mitm_tries; |
| 419 | int zinit; |
| 420 | #endif |
| 421 | |
| 422 | }; |
| 423 | |
| 424 | struct switch_rtcp_report_block { |
| 425 | uint32_t ssrc; /* The SSRC identifier of the source to which the information in this reception report block pertains. */ |
| 426 | unsigned int fraction :8; /* The fraction of RTP data packets from source SSRC_n lost since the previous SR or RR packet was sent */ |
| 427 | int lost :24; /* The total number of RTP data packets from source SSRC_n that have been lost since the beginning of reception */ |
| 428 | uint32_t highest_sequence_number_received; |
| 429 | uint32_t jitter; /* An estimate of the statistical variance of the RTP data packet interarrival time, measured in timestamp units and expressed as an unsigned integer. */ |
| 430 | uint32_t lsr; /* The middle 32 bits out of 64 in the NTP timestamp */ |
| 431 | uint32_t dlsr; /* The delay, expressed in units of 1/65536 seconds, between receiving the last SR packet from source SSRC_n and sending this reception report block */ |
| 432 | }; |
| 433 | |
| 434 | struct switch_rtcp_sr_head { |
| 435 | uint32_t ssrc; |
| 436 | uint32_t ntp_msw; |
| 437 | uint32_t ntp_lsw; |
| 438 | uint32_t ts; |
| 439 | uint32_t pc; |
| 440 | uint32_t oc; |
| 441 | }; |
| 442 | |
| 443 | struct switch_rtcp_sender_info { |
| 444 | uint32_t ntp_msw; |
| 445 | uint32_t ntp_lsw; |
| 446 | uint32_t ts; |
| 447 | uint32_t pc; |
| 448 | uint32_t oc; |
| 449 | }; |
| 450 | |
| 451 | struct switch_rtcp_sender_report { |
| 452 | uint32_t ssrc; |
| 453 | struct switch_rtcp_sender_info sender_info; |
| 454 | struct switch_rtcp_report_block report_block; |
| 455 | }; |
| 456 | |
| 457 | struct switch_rtcp_receiver_report { |
| 458 | uint32_t ssrc; |
| 459 | struct switch_rtcp_report_block report_block; |
| 460 | }; |
| 461 | |
| 462 | typedef enum { |
| 463 | RESULT_CONTINUE, |
| 464 | RESULT_GOTO_END, |
| 465 | RESULT_GOTO_RECVFROM, |
| 466 | RESULT_GOTO_TIMERCHECK |
| 467 | } handle_rfc2833_result_t; |
| 468 | |
| 469 | static void do_2833(switch_rtp_t *rtp_session); |
| 470 | |
| 471 | |
| 472 | #define rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" |
| 473 | |
| 474 | |
| 475 | static void switch_rtp_change_ice_dest(switch_rtp_t *rtp_session, switch_rtp_ice_t *ice, const char *host, switch_port_t port) |
| 476 | { |
| 477 | int is_rtcp = ice == &rtp_session->rtcp_ice; |
| 478 | const char *err = ""; |
| 479 | |
| 480 | ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_addr = switch_core_strdup(rtp_session->pool, host)switch_core_perform_strdup(rtp_session->pool, host, "src/switch_rtp.c" , (const char *)__func__, 480); |
| 481 | ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_port = port; |
| 482 | ice->missed_count = 0; |
| 483 | |
| 484 | switch_sockaddr_info_get(&ice->addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool); |
| 485 | |
| 486 | if (!is_rtcp || rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 487 | switch_rtp_set_remote_address(rtp_session, host, port, 0, SWITCH_FALSE, &err); |
| 488 | } |
| 489 | |
| 490 | if (rtp_session->dtls) { |
| 491 | |
| 492 | if (!is_rtcp || rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 493 | switch_sockaddr_info_get(&rtp_session->dtls->remote_addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool); |
| 494 | } |
| 495 | |
| 496 | if (is_rtcp && !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 497 | |
| 498 | switch_sockaddr_info_get(&rtp_session->rtcp_remote_addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool); |
| 499 | if (rtp_session->rtcp_dtls) { |
| 500 | //switch_sockaddr_info_get(&rtp_session->rtcp_dtls->remote_addr, host, SWITCH_UNSPEC, port, 0, rtp_session->pool); |
| 501 | rtp_session->rtcp_dtls->remote_addr = rtp_session->rtcp_remote_addr; |
| 502 | rtp_session->rtcp_dtls->sock_output = rtp_session->rtcp_sock_output; |
| 503 | } |
| 504 | |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | } |
| 509 | |
| 510 | |
| 511 | |
| 512 | static handle_rfc2833_result_t handle_rfc2833(switch_rtp_t *rtp_session, switch_size_t bytes, int *do_cng) |
| 513 | { |
| 514 | |
| 515 | if (rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON]) { |
| 516 | rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON]++; |
| 517 | |
| 518 | if (rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] > DTMF_SANITY(rtp_session->one_second * 30)) { |
| 519 | rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] = 0; |
| 520 | } else { |
| 521 | rtp_session->stats.inbound.last_processed_seq = 0; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | |
| 526 | #ifdef DEBUG_2833 |
| 527 | if (rtp_session->dtmf_data.in_digit_sanity && !(rtp_session->dtmf_data.in_digit_sanity % 100)) { |
| 528 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 528, ((void*)0), SWITCH_LOG_ERROR, "sanity %d %ld\n", rtp_session->dtmf_data.in_digit_sanity, bytes); |
| 529 | } |
| 530 | #endif |
| 531 | |
| 532 | if (rtp_session->dtmf_data.in_digit_sanity && !--rtp_session->dtmf_data.in_digit_sanity) { |
| 533 | |
| 534 | rtp_session->dtmf_data.last_digit = 0; |
| 535 | rtp_session->dtmf_data.in_digit_ts = 0; |
| 536 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 536, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Failed DTMF sanity check.\n"); |
| 537 | } |
| 538 | |
| 539 | /* RFC2833 ... like all RFC RE: VoIP, guaranteed to drive you to insanity! |
| 540 | We know the real rules here, but if we enforce them, it's an interop nightmare so, |
| 541 | we put up with as much as we can so we don't have to deal with being punished for |
| 542 | doing it right. Nice guys finish last! |
| 543 | */ |
| 544 | |
| 545 | if (bytes > rtp_header_len12 && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && |
| 546 | rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) { |
| 547 | switch_size_t len = bytes - rtp_header_len12; |
| 548 | unsigned char *packet = (unsigned char *) RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body); |
| 549 | int end; |
| 550 | uint16_t duration; |
| 551 | char key; |
| 552 | uint16_t in_digit_seq; |
| 553 | uint32_t ts; |
| 554 | |
| 555 | rtp_session->stats.inbound.last_processed_seq = 0; |
| 556 | |
| 557 | if (!(packet[0] || packet[1] || packet[2] || packet[3]) && len >= 8) { |
| 558 | packet += 4; |
| 559 | len -= 4; |
Value stored to 'len' is never read | |
| 560 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 560, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "DTMF payload offset by 4 bytes.\n"); |
| 561 | } |
| 562 | |
| 563 | if (!(packet[0] || packet[1] || packet[2] || packet[3]) && rtp_session->dtmf_data.in_digit_ts) { |
| 564 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 565 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 565, (const char*)(session), SWITCH_LOG_ERROR, "Failed DTMF payload check.\n"); |
| 566 | rtp_session->dtmf_data.last_digit = 0; |
| 567 | rtp_session->dtmf_data.in_digit_ts = 0; |
| 568 | rtp_session->dtmf_data.in_digit_sanity = 0; |
| 569 | } |
| 570 | |
| 571 | end = packet[1] & 0x80 ? 1 : 0; |
| 572 | duration = (packet[2] << 8) + packet[3]; |
| 573 | key = switch_rfc2833_to_char(packet[0]); |
| 574 | in_digit_seq = ntohs((uint16_t) rtp_session->recv_msg.header.seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 575 | ts = htonl(rtp_session->recv_msg.header.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 576 | |
| 577 | if (rtp_session->flags[SWITCH_RTP_FLAG_PASS_RFC2833]) { |
| 578 | |
| 579 | if (end) { |
| 580 | rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] = DTMF_SANITY(rtp_session->one_second * 30) - 3; |
| 581 | } else if (!rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON]) { |
| 582 | rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] = 1; |
| 583 | } |
| 584 | |
| 585 | return RESULT_CONTINUE; |
| 586 | } |
| 587 | |
| 588 | if (in_digit_seq < rtp_session->dtmf_data.in_digit_seq) { |
| 589 | if (rtp_session->dtmf_data.in_digit_seq - in_digit_seq > 100) { |
| 590 | rtp_session->dtmf_data.in_digit_seq = 0; |
| 591 | } |
| 592 | } |
| 593 | #ifdef DEBUG_2833 |
| 594 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 594, ((void*)0), SWITCH_LOG_ERROR, "packet[%d]: %02x %02x %02x %02x\n", (int) len, (unsigned char) packet[0], (unsigned char) packet[1], (unsigned char) packet[2], (unsigned char) packet[3]); |
| 595 | #endif |
| 596 | |
| 597 | if (in_digit_seq > rtp_session->dtmf_data.in_digit_seq) { |
| 598 | |
| 599 | rtp_session->dtmf_data.in_digit_seq = in_digit_seq; |
| 600 | #ifdef DEBUG_2833 |
| 601 | |
| 602 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 602, ((void*)0), SWITCH_LOG_ERROR, "read: %c %u %u %u %u %d %d %s\n", |
| 603 | key, in_digit_seq, rtp_session->dtmf_data.in_digit_seq, |
| 604 | ts, duration, rtp_session->recv_msg.header.m, end, end && !rtp_session->dtmf_data.in_digit_ts ? "ignored" : ""); |
| 605 | #endif |
| 606 | |
| 607 | if (!rtp_session->dtmf_data.in_digit_queued && rtp_session->dtmf_data.in_digit_ts) { |
| 608 | if ((rtp_session->rtp_bugs & RTP_BUG_IGNORE_DTMF_DURATION)) { |
| 609 | switch_dtmf_t dtmf = { key, switch_core_min_dtmf_duration(0), 0, SWITCH_DTMF_RTP }; |
| 610 | #ifdef DEBUG_2833 |
| 611 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 611, ((void*)0), SWITCH_LOG_ERROR, "Early Queuing digit %c:%d\n", dtmf.digit, dtmf.duration / 8); |
| 612 | #endif |
| 613 | switch_rtp_queue_rfc2833_in(rtp_session, &dtmf); |
| 614 | rtp_session->dtmf_data.in_digit_queued = 1; |
| 615 | } |
| 616 | |
| 617 | if (rtp_session->jb && (rtp_session->rtp_bugs & RTP_BUG_FLUSH_JB_ON_DTMF)) { |
| 618 | stfu_n_reset(rtp_session->jb)_stfu_n_reset(rtp_session->jb, "src/switch_rtp.c", __FUNCTION__ , 618); |
| 619 | } |
| 620 | |
| 621 | } |
| 622 | |
| 623 | /* only set sanity if we do NOT ignore the packet */ |
| 624 | if (rtp_session->dtmf_data.in_digit_ts) { |
| 625 | rtp_session->dtmf_data.in_digit_sanity = 2000; |
| 626 | } |
| 627 | |
| 628 | if (rtp_session->dtmf_data.last_duration > duration && |
| 629 | rtp_session->dtmf_data.last_duration > 0xFC17 && ts == rtp_session->dtmf_data.in_digit_ts) { |
| 630 | rtp_session->dtmf_data.flip++; |
| 631 | } |
| 632 | |
| 633 | if (end) { |
| 634 | if (!rtp_session->dtmf_data.in_digit_ts && rtp_session->dtmf_data.last_in_digit_ts != ts) { |
| 635 | #ifdef DEBUG_2833 |
| 636 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 636, ((void*)0), SWITCH_LOG_ERROR, "start with end packet %d\n", ts); |
| 637 | #endif |
| 638 | rtp_session->dtmf_data.last_in_digit_ts = ts; |
| 639 | rtp_session->dtmf_data.in_digit_ts = ts; |
| 640 | rtp_session->dtmf_data.first_digit = key; |
| 641 | rtp_session->dtmf_data.in_digit_sanity = 2000; |
| 642 | } |
| 643 | if (rtp_session->dtmf_data.in_digit_ts) { |
| 644 | switch_dtmf_t dtmf = { key, duration, 0, SWITCH_DTMF_RTP }; |
| 645 | |
| 646 | if (ts > rtp_session->dtmf_data.in_digit_ts) { |
| 647 | dtmf.duration += (ts - rtp_session->dtmf_data.in_digit_ts); |
| 648 | } |
| 649 | if (rtp_session->dtmf_data.flip) { |
| 650 | dtmf.duration += rtp_session->dtmf_data.flip * 0xFFFF; |
| 651 | rtp_session->dtmf_data.flip = 0; |
| 652 | #ifdef DEBUG_2833 |
| 653 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 653, ((void*)0), SWITCH_LOG_ERROR, "you're welcome!\n"); |
| 654 | #endif |
| 655 | } |
| 656 | #ifdef DEBUG_2833 |
| 657 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 657, ((void*)0), SWITCH_LOG_ERROR, "done digit=%c ts=%u start_ts=%u dur=%u ddur=%u\n", |
| 658 | dtmf.digit, ts, rtp_session->dtmf_data.in_digit_ts, duration, dtmf.duration); |
| 659 | #endif |
| 660 | |
| 661 | if (!(rtp_session->rtp_bugs & RTP_BUG_IGNORE_DTMF_DURATION) && !rtp_session->dtmf_data.in_digit_queued) { |
| 662 | #ifdef DEBUG_2833 |
| 663 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 663, ((void*)0), SWITCH_LOG_ERROR, "Queuing digit %c:%d\n", dtmf.digit, dtmf.duration / 8); |
| 664 | #endif |
| 665 | switch_rtp_queue_rfc2833_in(rtp_session, &dtmf); |
| 666 | } |
| 667 | |
| 668 | rtp_session->dtmf_data.last_digit = rtp_session->dtmf_data.first_digit; |
| 669 | |
| 670 | rtp_session->dtmf_data.in_digit_ts = 0; |
| 671 | rtp_session->dtmf_data.in_digit_sanity = 0; |
| 672 | rtp_session->dtmf_data.in_digit_queued = 0; |
| 673 | *do_cng = 1; |
| 674 | } else { |
| 675 | if (!switch_rtp_ready(rtp_session)) { |
| 676 | return RESULT_GOTO_END; |
| 677 | } |
| 678 | switch_cond_next(); |
| 679 | return RESULT_GOTO_RECVFROM; |
| 680 | } |
| 681 | |
| 682 | } else if (!rtp_session->dtmf_data.in_digit_ts) { |
| 683 | #ifdef DEBUG_2833 |
| 684 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 684, ((void*)0), SWITCH_LOG_ERROR, "start %d [%c]\n", ts, key); |
| 685 | #endif |
| 686 | rtp_session->dtmf_data.in_digit_ts = ts; |
| 687 | rtp_session->dtmf_data.last_in_digit_ts = ts; |
| 688 | rtp_session->dtmf_data.first_digit = key; |
| 689 | rtp_session->dtmf_data.in_digit_sanity = 2000; |
| 690 | } |
| 691 | |
| 692 | rtp_session->dtmf_data.last_duration = duration; |
| 693 | } else { |
| 694 | #ifdef DEBUG_2833 |
| 695 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 695, ((void*)0), SWITCH_LOG_ERROR, "drop: %c %u %u %u %u %d %d\n", |
| 696 | key, in_digit_seq, rtp_session->dtmf_data.in_digit_seq, ts, duration, rtp_session->recv_msg.header.m, end); |
| 697 | #endif |
| 698 | switch_cond_next(); |
| 699 | return RESULT_GOTO_RECVFROM; |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | if (bytes && rtp_session->dtmf_data.in_digit_ts) { |
| 704 | if (!switch_rtp_ready(rtp_session)) { |
| 705 | return RESULT_GOTO_END; |
| 706 | } |
| 707 | |
| 708 | if (!rtp_session->dtmf_data.in_interleaved && rtp_session->recv_msg.header.pt != rtp_session->recv_te) { |
| 709 | /* Drat, they are sending audio still as well as DTMF ok fine..... *sigh* */ |
| 710 | rtp_session->dtmf_data.in_interleaved = 1; |
| 711 | } |
| 712 | |
| 713 | if (rtp_session->dtmf_data.in_interleaved || (rtp_session->rtp_bugs & RTP_BUG_IGNORE_DTMF_DURATION)) { |
| 714 | if (rtp_session->recv_msg.header.pt == rtp_session->recv_te) { |
| 715 | return RESULT_GOTO_RECVFROM; |
| 716 | } |
| 717 | } else { |
| 718 | *do_cng = 1; |
| 719 | return RESULT_GOTO_TIMERCHECK; |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | return RESULT_CONTINUE; |
| 724 | } |
| 725 | |
| 726 | static int global_init = 0; |
| 727 | static int rtp_common_write(switch_rtp_t *rtp_session, |
| 728 | rtp_msg_t *send_msg, void *data, uint32_t datalen, switch_payload_t payload, uint32_t timestamp, switch_frame_flag_t *flags); |
| 729 | |
| 730 | |
| 731 | static switch_status_t ice_out(switch_rtp_t *rtp_session, switch_rtp_ice_t *ice) |
| 732 | { |
| 733 | uint8_t buf[256] = { 0 }; |
| 734 | switch_stun_packet_t *packet; |
| 735 | unsigned int elapsed; |
| 736 | switch_size_t bytes; |
| 737 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 738 | //switch_sockaddr_t *remote_addr = rtp_session->remote_addr; |
| 739 | switch_socket_t *sock_output = rtp_session->sock_output; |
| 740 | switch_time_t now = switch_micro_time_now(); |
| 741 | |
| 742 | if (ice->next_run && ice->next_run > now) { |
| 743 | return SWITCH_STATUS_BREAK; |
| 744 | } |
| 745 | |
| 746 | ice->next_run = now + RTP_STUN_FREQ1000000; |
| 747 | |
| 748 | if (ice == &rtp_session->rtcp_ice && rtp_session->rtcp_sock_output) { |
| 749 | sock_output = rtp_session->rtcp_sock_output; |
| 750 | } |
| 751 | |
| 752 | if (!sock_output) { |
| 753 | return SWITCH_STATUS_FALSE; |
| 754 | } |
| 755 | |
| 756 | switch_assert(rtp_session != NULL)((rtp_session != ((void*)0)) ? (void) (0) : __assert_fail ("rtp_session != ((void*)0)" , "src/switch_rtp.c", 756, __PRETTY_FUNCTION__)); |
| 757 | switch_assert(ice->ice_user != NULL)((ice->ice_user != ((void*)0)) ? (void) (0) : __assert_fail ("ice->ice_user != ((void*)0)", "src/switch_rtp.c", 757, __PRETTY_FUNCTION__ )); |
| 758 | |
| 759 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 760 | |
| 761 | if (rtp_session->last_stun) { |
| 762 | elapsed = (unsigned int) ((switch_micro_time_now() - rtp_session->last_stun) / 1000); |
| 763 | |
| 764 | if (elapsed > 30000) { |
| 765 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 765, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "No %s stun for a long time!\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 766 | rtp_session->last_stun = switch_micro_time_now(); |
| 767 | //status = SWITCH_STATUS_GENERR; |
| 768 | //goto end; |
| 769 | } |
| 770 | } |
| 771 | |
| 772 | packet = switch_stun_packet_build_header(SWITCH_STUN_BINDING_REQUEST, NULL((void*)0), buf); |
| 773 | switch_stun_packet_attribute_add_username(packet, ice->ice_user, (uint16_t)strlen(ice->ice_user)); |
| 774 | |
| 775 | memcpy(ice->last_sent_id, packet->header.id, 12); |
| 776 | |
| 777 | //if (ice->pass && ice->type == ICE_GOOGLE_JINGLE) { |
| 778 | // switch_stun_packet_attribute_add_password(packet, ice->pass, (uint16_t)strlen(ice->pass)); |
| 779 | //} |
| 780 | |
| 781 | if ((ice->type & ICE_VANILLA)) { |
| 782 | char sw[128] = ""; |
| 783 | |
| 784 | switch_stun_packet_attribute_add_priority(packet, ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].priority); |
| 785 | |
| 786 | switch_snprintf(sw, sizeof(sw), "FreeSWITCH (%s)", switch_version_revision_human()); |
| 787 | switch_stun_packet_attribute_add_software(packet, sw, (uint16_t)strlen(sw)); |
| 788 | |
| 789 | if ((ice->type & ICE_CONTROLLED)) { |
| 790 | switch_stun_packet_attribute_add_controlled(packet); |
| 791 | } else { |
| 792 | switch_stun_packet_attribute_add_controlling(packet); |
| 793 | switch_stun_packet_attribute_add_use_candidate(packet); |
| 794 | } |
| 795 | |
| 796 | switch_stun_packet_attribute_add_integrity(packet, ice->rpass); |
| 797 | switch_stun_packet_attribute_add_fingerprint(packet); |
| 798 | } |
| 799 | |
| 800 | |
| 801 | bytes = switch_stun_packet_length(packet)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (packet->header.length); if (__builtin_constant_p (__x )) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })) + (sizeof(switch_stun_packet_header_t )); |
| 802 | |
| 803 | #ifdef DEBUG_EXTRA |
| 804 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 804, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "%s send %s stun\n", rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 805 | #endif |
| 806 | switch_socket_sendto(sock_output, ice->addr, 0, (void *) packet, &bytes); |
| 807 | |
| 808 | ice->sending = 3; |
| 809 | |
| 810 | // end: |
| 811 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 812 | |
| 813 | return status; |
| 814 | } |
| 815 | |
| 816 | int icecmp(const char *them, switch_rtp_ice_t *ice) |
| 817 | { |
| 818 | if (strchr(them, ':')(__extension__ (__builtin_constant_p (':') && !__builtin_constant_p (them) && (':') == '\0' ? (char *) __rawmemchr (them , ':') : __builtin_strchr (them, ':')))) { |
| 819 | return strcmp(them, ice->user_ice)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (them) && __builtin_constant_p (ice->user_ice) && (__s1_len = __builtin_strlen (them), __s2_len = __builtin_strlen (ice->user_ice), (!((size_t)(const void *)((them) + 1) - ( size_t)(const void *)(them) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((ice->user_ice) + 1) - (size_t) (const void *)(ice->user_ice) == 1) || __s2_len >= 4)) ? __builtin_strcmp (them, ice->user_ice) : (__builtin_constant_p (them) && ((size_t)(const void *)((them) + 1) - (size_t )(const void *)(them) == 1) && (__s1_len = __builtin_strlen (them), __s1_len < 4) ? (__builtin_constant_p (ice->user_ice ) && ((size_t)(const void *)((ice->user_ice) + 1) - (size_t)(const void *)(ice->user_ice) == 1) ? __builtin_strcmp (them, ice->user_ice) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (ice->user_ice ); int __result = (((const unsigned char *) (const char *) (them ))[0] - __s2[0]); if (__s1_len > 0 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (them ))[1] - __s2[1]); if (__s1_len > 1 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (them ))[2] - __s2[2]); if (__s1_len > 2 && __result == 0 ) __result = (((const unsigned char *) (const char *) (them)) [3] - __s2[3]); } } __result; }))) : (__builtin_constant_p (ice ->user_ice) && ((size_t)(const void *)((ice->user_ice ) + 1) - (size_t)(const void *)(ice->user_ice) == 1) && (__s2_len = __builtin_strlen (ice->user_ice), __s2_len < 4) ? (__builtin_constant_p (them) && ((size_t)(const void *)((them) + 1) - (size_t)(const void *)(them) == 1) ? __builtin_strcmp (them, ice->user_ice) : (- (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (them); int __result = (((const unsigned char *) (const char *) (ice-> user_ice))[0] - __s2[0]); if (__s2_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) ( ice->user_ice))[1] - __s2[1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->user_ice))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (ice->user_ice))[3] - __s2[3]); } } __result ; })))) : __builtin_strcmp (them, ice->user_ice)))); }); |
| 820 | } |
| 821 | |
| 822 | return strcmp(them, ice->luser_ice)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (them) && __builtin_constant_p (ice->luser_ice) && (__s1_len = __builtin_strlen (them), __s2_len = __builtin_strlen (ice->luser_ice), (!((size_t)(const void *)((them) + 1) - (size_t)(const void *)(them) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((ice->luser_ice) + 1) - (size_t )(const void *)(ice->luser_ice) == 1) || __s2_len >= 4) ) ? __builtin_strcmp (them, ice->luser_ice) : (__builtin_constant_p (them) && ((size_t)(const void *)((them) + 1) - (size_t )(const void *)(them) == 1) && (__s1_len = __builtin_strlen (them), __s1_len < 4) ? (__builtin_constant_p (ice->luser_ice ) && ((size_t)(const void *)((ice->luser_ice) + 1) - (size_t)(const void *)(ice->luser_ice) == 1) ? __builtin_strcmp (them, ice->luser_ice) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (ice-> luser_ice); int __result = (((const unsigned char *) (const char *) (them))[0] - __s2[0]); if (__s1_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) ( them))[1] - __s2[1]); if (__s1_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) ( them))[2] - __s2[2]); if (__s1_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (them ))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p ( ice->luser_ice) && ((size_t)(const void *)((ice-> luser_ice) + 1) - (size_t)(const void *)(ice->luser_ice) == 1) && (__s2_len = __builtin_strlen (ice->luser_ice ), __s2_len < 4) ? (__builtin_constant_p (them) && ((size_t)(const void *)((them) + 1) - (size_t)(const void *) (them) == 1) ? __builtin_strcmp (them, ice->luser_ice) : ( - (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (them); int __result = (((const unsigned char *) (const char *) (ice->luser_ice))[0] - __s2[0]); if (__s2_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->luser_ice))[1] - __s2 [1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->luser_ice ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0 ) __result = (((const unsigned char *) (const char *) (ice-> luser_ice))[3] - __s2[3]); } } __result; })))) : __builtin_strcmp (them, ice->luser_ice)))); }); |
| 823 | } |
| 824 | |
| 825 | static void handle_ice(switch_rtp_t *rtp_session, switch_rtp_ice_t *ice, void *data, switch_size_t len) |
| 826 | { |
| 827 | switch_stun_packet_t *packet; |
| 828 | switch_stun_packet_attribute_t *attr; |
| 829 | void *end_buf; |
| 830 | char username[34] = { 0 }; |
| 831 | unsigned char buf[512] = { 0 }; |
| 832 | switch_size_t cpylen = len; |
| 833 | int xlen = 0; |
| 834 | int ok = 1; |
| 835 | uint32_t *pri = NULL((void*)0); |
| 836 | int is_rtcp = ice == &rtp_session->rtcp_ice; |
| 837 | uint32_t elapsed; |
| 838 | |
| 839 | |
| 840 | if (!switch_rtp_ready(rtp_session) || zstr(ice->user_ice)_zstr(ice->user_ice) || zstr(ice->ice_user)_zstr(ice->ice_user)) { |
| 841 | return; |
| 842 | } |
| 843 | |
| 844 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 845 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 846 | |
| 847 | if (!switch_rtp_ready(rtp_session)) { |
| 848 | goto end; |
| 849 | } |
| 850 | |
| 851 | if (cpylen > sizeof(buf)) { |
| 852 | cpylen = sizeof(buf); |
| 853 | } |
| 854 | |
| 855 | |
| 856 | memcpy(buf, data, cpylen); |
| 857 | packet = switch_stun_packet_parse(buf, (uint32_t)cpylen); |
| 858 | if (!packet) { |
| 859 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 859, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Invalid STUN/ICE packet received %ld bytes\n", (long)cpylen); |
| 860 | goto end; |
| 861 | |
| 862 | } |
| 863 | |
| 864 | if (!rtp_session->last_stun) { |
| 865 | elapsed = 0; |
| 866 | } else { |
| 867 | elapsed = (unsigned int) ((switch_micro_time_now() - rtp_session->last_stun) / 1000); |
| 868 | } |
| 869 | |
| 870 | end_buf = buf + ((sizeof(buf) > packet->header.length) ? packet->header.length : sizeof(buf)); |
| 871 | |
| 872 | rtp_session->last_stun = switch_micro_time_now(); |
| 873 | |
| 874 | switch_stun_packet_first_attribute(packet, attr)attr = (switch_stun_packet_attribute_t *)(&packet->first_attribute );; |
| 875 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 875, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "STUN PACKET TYPE: %s\n", |
| 876 | switch_stun_value_to_name(SWITCH_STUN_TYPE_PACKET_TYPE, packet->header.type)); |
| 877 | do { |
| 878 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 878, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "|---: STUN ATTR %s\n", |
| 879 | switch_stun_value_to_name(SWITCH_STUN_TYPE_ATTRIBUTE, attr->type)); |
| 880 | |
| 881 | switch (attr->type) { |
| 882 | case SWITCH_STUN_ATTR_USE_CAND: |
| 883 | { |
| 884 | ice->rready = 1; |
| 885 | } |
| 886 | break; |
| 887 | case SWITCH_STUN_ATTR_ERROR_CODE: |
| 888 | { |
| 889 | switch_stun_error_code_t *err = (switch_stun_error_code_t *) attr->value; |
| 890 | uint32_t code = (err->code * 100) + err->number; |
| 891 | |
| 892 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 892, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "%s got stun binding response %u %s\n", |
| 893 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 894 | code, |
| 895 | err->reason |
| 896 | ); |
| 897 | |
| 898 | if ((ice->type & ICE_VANILLA) && code == 487) { |
| 899 | if ((ice->type & ICE_CONTROLLED)) { |
| 900 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 900, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "Changing role to CONTROLLING\n"); |
| 901 | ice->type &= ~ICE_CONTROLLED; |
| 902 | } else { |
| 903 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 903, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "Changing role to CONTROLLED\n"); |
| 904 | ice->type |= ICE_CONTROLLED; |
| 905 | } |
| 906 | packet->header.type = SWITCH_STUN_BINDING_RESPONSE; |
| 907 | } |
| 908 | |
| 909 | } |
| 910 | break; |
| 911 | case SWITCH_STUN_ATTR_MAPPED_ADDRESS: |
| 912 | if (attr->type) { |
| 913 | char ip[16]; |
| 914 | uint16_t port; |
| 915 | switch_stun_packet_attribute_get_mapped_address(attr, ip, &port); |
| 916 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 916, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "|------: %s:%d\n", ip, port); |
| 917 | } |
| 918 | break; |
| 919 | case SWITCH_STUN_ATTR_USERNAME: |
| 920 | if (attr->type) { |
| 921 | switch_stun_packet_attribute_get_username(attr, username, sizeof(username)); |
| 922 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 922, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "|------: %s\n", username); |
| 923 | } |
| 924 | break; |
| 925 | |
| 926 | case SWITCH_STUN_ATTR_PRIORITY: |
| 927 | { |
| 928 | uint32_t priority = 0; |
| 929 | pri = (uint32_t *) attr->value; |
| 930 | priority = ntohl(*pri)(__extension__ ({ unsigned int __v, __x = (*pri); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 931 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 931, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "|------: %u\n", priority); |
| 932 | ok = priority == ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].priority; |
| 933 | } |
| 934 | break; |
| 935 | } |
| 936 | |
| 937 | if (!switch_stun_packet_next_attribute(attr, end_buf)(attr && (attr = (switch_stun_packet_attribute_t *) ( attr->value + (int16_t)((attr->length & 0x3) ? 0x4 + (attr->length & ~0x3) : attr->length))) && ((void *)attr < end_buf) && attr->type && (((switch_byte_t *)attr + (int16_t)((attr->length & 0x3 ) ? 0x4 + (attr->length & ~0x3) : attr->length)) < (switch_byte_t *)end_buf))) { |
| 938 | break; |
| 939 | } |
| 940 | |
| 941 | xlen += 4 + switch_stun_attribute_padded_length(attr)(int16_t)((attr->length & 0x3) ? 0x4 + (attr->length & ~0x3) : attr->length); |
| 942 | } while (xlen <= packet->header.length); |
| 943 | |
| 944 | if ((ice->type & ICE_GOOGLE_JINGLE) && ok) { |
| 945 | ok = !strcmp(ice->user_ice, username)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (ice->user_ice) && __builtin_constant_p (username ) && (__s1_len = __builtin_strlen (ice->user_ice), __s2_len = __builtin_strlen (username), (!((size_t)(const void *)((ice->user_ice) + 1) - (size_t)(const void *)(ice-> user_ice) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((username) + 1) - (size_t)(const void *)(username) == 1) || __s2_len >= 4)) ? __builtin_strcmp (ice->user_ice , username) : (__builtin_constant_p (ice->user_ice) && ((size_t)(const void *)((ice->user_ice) + 1) - (size_t)(const void *)(ice->user_ice) == 1) && (__s1_len = __builtin_strlen (ice->user_ice), __s1_len < 4) ? (__builtin_constant_p (username) && ((size_t)(const void *)((username) + 1 ) - (size_t)(const void *)(username) == 1) ? __builtin_strcmp (ice->user_ice, username) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (username ); int __result = (((const unsigned char *) (const char *) (ice ->user_ice))[0] - __s2[0]); if (__s1_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->user_ice))[1] - __s2[1]); if (__s1_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->user_ice))[2] - __s2[2]); if (__s1_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (ice->user_ice))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p (username) && ((size_t)(const void *)((username) + 1) - (size_t)(const void *)(username) == 1) && (__s2_len = __builtin_strlen ( username), __s2_len < 4) ? (__builtin_constant_p (ice-> user_ice) && ((size_t)(const void *)((ice->user_ice ) + 1) - (size_t)(const void *)(ice->user_ice) == 1) ? __builtin_strcmp (ice->user_ice, username) : (- (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (ice-> user_ice); int __result = (((const unsigned char *) (const char *) (username))[0] - __s2[0]); if (__s2_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) (username))[1] - __s2[1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (username))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (username))[3] - __s2[3]); } } __result; })))) : __builtin_strcmp (ice->user_ice, username)))); }); |
| 946 | } |
| 947 | |
| 948 | if (packet->header.type != SWITCH_STUN_BINDING_REQUEST && packet->header.type != SWITCH_STUN_BINDING_RESPONSE) { |
| 949 | goto end; |
| 950 | } |
| 951 | |
| 952 | if ((ice->type & ICE_VANILLA)) { |
| 953 | char foo1[13] = "", foo2[13] = ""; |
| 954 | if (!ok) ok = !memcmp(packet->header.id, ice->last_sent_id, 12); |
| 955 | |
| 956 | if (packet->header.type == SWITCH_STUN_BINDING_RESPONSE) { |
| 957 | ok = 1; |
| 958 | if (!ice->rready) { |
| 959 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 960 | rtp_session->ice.rready = 1; |
| 961 | rtp_session->rtcp_ice.rready = 1; |
| 962 | } else { |
| 963 | ice->rready = 1; |
| 964 | } |
| 965 | |
| 966 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | memcpy(foo1, packet->header.id, 12); |
| 971 | memcpy(foo2, ice->last_sent_id, 12); |
| 972 | |
| 973 | if (!ok && ice == &rtp_session->ice && rtp_session->rtcp_ice.ice_params && pri && |
| 974 | *pri == rtp_session->rtcp_ice.ice_params->cands[rtp_session->rtcp_ice.ice_params->chosen[1]][1].priority) { |
| 975 | ice = &rtp_session->rtcp_ice; |
| 976 | ok = 1; |
| 977 | } |
| 978 | |
| 979 | if (!zstr(username)_zstr(username)) { |
| 980 | if (!icecmp(username, ice)) { |
| 981 | ok = 1; |
| 982 | } else if(!zstr(rtp_session->rtcp_ice.user_ice)_zstr(rtp_session->rtcp_ice.user_ice) && !icecmp(username, &rtp_session->rtcp_ice)) { |
| 983 | ice = &rtp_session->rtcp_ice; |
| 984 | ok = 1; |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | if (ok) { |
| 989 | ice->missed_count = 0; |
| 990 | } else { |
| 991 | switch_rtp_ice_t *icep[2] = { &rtp_session->ice, &rtp_session->rtcp_ice }; |
| 992 | switch_port_t port = 0; |
| 993 | char *host = NULL((void*)0); |
| 994 | |
| 995 | if (elapsed > 20000 && pri) { |
| 996 | int i, j; |
| 997 | uint32_t old; |
| 998 | //const char *tx_host; |
| 999 | const char *old_host, *err = NULL((void*)0); |
| 1000 | //char bufa[30]; |
| 1001 | char bufb[30]; |
| 1002 | char adj_port[6]; |
| 1003 | switch_channel_t *channel = NULL((void*)0); |
| 1004 | |
| 1005 | |
| 1006 | ice->missed_count++; |
| 1007 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1007, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "missed %d\n", ice->missed_count); |
| 1008 | |
| 1009 | |
| 1010 | if (rtp_session->session) { |
| 1011 | channel = switch_core_session_get_channel(rtp_session->session); |
| 1012 | } |
| 1013 | |
| 1014 | //ice->ice_params->cands[ice->ice_params->chosen][ice->proto].priority; |
| 1015 | for (j = 0; j < 2; j++) { |
| 1016 | for (i = 0; i < icep[j]->ice_params->cand_idx; i++) { |
| 1017 | if (icep[j]->ice_params->cands[i][icep[j]->proto].priority == *pri) { |
| 1018 | if (j == IPR_RTP) { |
| 1019 | icep[j]->ice_params->chosen[j] = i; |
| 1020 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1020, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "Change candidate index to %d\n", i); |
| 1021 | } |
| 1022 | |
| 1023 | ice = icep[j]; |
| 1024 | ok = 1; |
| 1025 | |
| 1026 | if (j != IPR_RTP) { |
| 1027 | break; |
| 1028 | } |
| 1029 | |
| 1030 | old = rtp_session->remote_port; |
| 1031 | |
| 1032 | //tx_host = switch_get_addr(bufa, sizeof(bufa), rtp_session->from_addr); |
| 1033 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->remote_addr); |
| 1034 | |
| 1035 | host = ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_addr; |
| 1036 | port = ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_port; |
| 1037 | |
| 1038 | if (!host || !port) { |
| 1039 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1039, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error setting remote host!\n"); |
| 1040 | return; |
| 1041 | } |
| 1042 | |
| 1043 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1043, (const char*)(rtp_session->session), SWITCH_LOG_INFO, |
| 1044 | "ICE Auto Changing port from %s:%u to %s:%u\n", old_host, old, host, port); |
| 1045 | |
| 1046 | |
| 1047 | if (channel) { |
| 1048 | switch_channel_set_variable(channel, "remote_media_ip_reported", switch_channel_get_variable(channel, "remote_media_ip"))switch_channel_set_variable_var_check(channel, "remote_media_ip_reported" , switch_channel_get_variable_dup(channel, "remote_media_ip", SWITCH_TRUE, -1), SWITCH_TRUE); |
| 1049 | switch_channel_set_variable(channel, "remote_media_ip", host)switch_channel_set_variable_var_check(channel, "remote_media_ip" , host, SWITCH_TRUE); |
| 1050 | switch_channel_set_variable(channel, "rtp_auto_adjust_ip", host)switch_channel_set_variable_var_check(channel, "rtp_auto_adjust_ip" , host, SWITCH_TRUE); |
| 1051 | switch_snprintf(adj_port, sizeof(adj_port), "%u", port); |
| 1052 | switch_channel_set_variable(channel, "remote_media_port_reported", switch_channel_get_variable(channel, "remote_media_port"))switch_channel_set_variable_var_check(channel, "remote_media_port_reported" , switch_channel_get_variable_dup(channel, "remote_media_port" , SWITCH_TRUE, -1), SWITCH_TRUE); |
| 1053 | switch_channel_set_variable(channel, "remote_media_port", adj_port)switch_channel_set_variable_var_check(channel, "remote_media_port" , adj_port, SWITCH_TRUE); |
| 1054 | switch_channel_set_variable(channel, "rtp_auto_adjust_port", adj_port)switch_channel_set_variable_var_check(channel, "rtp_auto_adjust_port" , adj_port, SWITCH_TRUE); |
| 1055 | switch_channel_set_variable(channel, "rtp_auto_candidate_adjust", "true")switch_channel_set_variable_var_check(channel, "rtp_auto_candidate_adjust" , "true", SWITCH_TRUE); |
| 1056 | } |
| 1057 | rtp_session->auto_adj_used = 1; |
| 1058 | |
| 1059 | |
| 1060 | switch_rtp_set_remote_address(rtp_session, host, port, 0, SWITCH_FALSE, &err); |
| 1061 | if (switch_sockaddr_info_get(&ice->addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || |
| 1062 | !ice->addr) { |
| 1063 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1063, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error setting remote host!\n"); |
| 1064 | return; |
| 1065 | } |
| 1066 | |
| 1067 | if ((rtp_session->rtp_bugs & RTP_BUG_ALWAYS_AUTO_ADJUST)) { |
| 1068 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 1069 | } else { |
| 1070 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 1071 | } |
| 1072 | |
| 1073 | } |
| 1074 | } |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | if (ice->missed_count > 5 && !(ice->type & ICE_GOOGLE_JINGLE)) { |
| 1081 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1081, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "missed too many: %d, looking for new ICE dest.\n", |
| 1082 | ice->missed_count); |
| 1083 | ice->rready = 0; |
| 1084 | ok = 1; |
| 1085 | } |
| 1086 | |
| 1087 | if (ok) { |
| 1088 | const char *host = NULL((void*)0), *host2 = NULL((void*)0); |
| 1089 | switch_port_t port = 0, port2 = 0; |
| 1090 | char buf[80] = ""; |
| 1091 | char buf2[80] = ""; |
| 1092 | |
| 1093 | if (packet->header.type == SWITCH_STUN_BINDING_REQUEST) { |
| 1094 | uint8_t stunbuf[512]; |
| 1095 | switch_stun_packet_t *rpacket; |
| 1096 | const char *remote_ip; |
| 1097 | switch_size_t bytes; |
| 1098 | char ipbuf[25]; |
| 1099 | switch_sockaddr_t *from_addr = rtp_session->from_addr; |
| 1100 | switch_socket_t *sock_output = rtp_session->sock_output; |
| 1101 | uint8_t hosts_set = 0; |
| 1102 | |
| 1103 | if (is_rtcp) { |
| 1104 | from_addr = rtp_session->rtcp_from_addr; |
| 1105 | sock_output = rtp_session->rtcp_sock_output; |
| 1106 | } |
| 1107 | |
| 1108 | if (!ice->ready) { |
| 1109 | ice->ready = 1; |
| 1110 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 1111 | } |
| 1112 | |
| 1113 | memset(stunbuf, 0, sizeof(stunbuf)); |
| 1114 | rpacket = switch_stun_packet_build_header(SWITCH_STUN_BINDING_RESPONSE, packet->header.id, stunbuf); |
| 1115 | |
| 1116 | if ((ice->type & ICE_GOOGLE_JINGLE)) { |
| 1117 | switch_stun_packet_attribute_add_username(rpacket, username, (uint16_t)strlen(username)); |
| 1118 | } |
| 1119 | |
| 1120 | remote_ip = switch_get_addr(ipbuf, sizeof(ipbuf), from_addr); |
| 1121 | switch_stun_packet_attribute_add_xor_binded_address(rpacket, (char *) remote_ip, switch_sockaddr_get_port(from_addr)); |
| 1122 | |
| 1123 | if (!switch_cmp_addr(from_addr, ice->addr)) { |
| 1124 | hosts_set++; |
| 1125 | host = switch_get_addr(buf, sizeof(buf), from_addr); |
| 1126 | port = switch_sockaddr_get_port(from_addr); |
| 1127 | host2 = switch_get_addr(buf2, sizeof(buf2), ice->addr); |
| 1128 | port2 = switch_sockaddr_get_port(ice->addr); |
| 1129 | } |
| 1130 | |
| 1131 | if ((ice->type & ICE_VANILLA)) { |
| 1132 | switch_stun_packet_attribute_add_integrity(rpacket, ice->pass); |
| 1133 | switch_stun_packet_attribute_add_fingerprint(rpacket); |
| 1134 | } |
| 1135 | |
| 1136 | if (hosts_set) { |
| 1137 | switch_sockaddr_info_get(&ice->addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool); |
| 1138 | |
| 1139 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1139, (const char*)(rtp_session->session), SWITCH_LOG_NOTICE, |
| 1140 | "Auto Changing stun/%s/dtls port from %s:%u to %s:%u\n", is_rtcp ? "rtcp" : "rtp", |
| 1141 | host2, port2, |
| 1142 | host, port); |
| 1143 | |
| 1144 | switch_rtp_change_ice_dest(rtp_session, ice, host, port); |
| 1145 | } |
| 1146 | |
| 1147 | |
| 1148 | bytes = switch_stun_packet_length(rpacket)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (rpacket->header.length); if (__builtin_constant_p ( __x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })) + (sizeof(switch_stun_packet_header_t )); |
| 1149 | |
| 1150 | if (!ice->rready && (ice->type & ICE_VANILLA) && ice->ice_params && hosts_set && !switch_cmp_addr(from_addr, ice->addr)) { |
| 1151 | int i = 0; |
| 1152 | |
| 1153 | ice->missed_count = 0; |
| 1154 | ice->rready = 1; |
| 1155 | |
| 1156 | |
| 1157 | |
| 1158 | |
| 1159 | for (i = 0; i <= ice->ice_params->cand_idx; i++) { |
| 1160 | if (ice->ice_params->cands[i][ice->proto].con_port == port) { |
| 1161 | if (!strcmp(ice->ice_params->cands[i][ice->proto].con_addr, host)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (ice->ice_params->cands[i][ice->proto].con_addr) && __builtin_constant_p (host) && (__s1_len = __builtin_strlen (ice->ice_params->cands[i][ice->proto].con_addr), __s2_len = __builtin_strlen (host), (!((size_t)(const void *)((ice-> ice_params->cands[i][ice->proto].con_addr) + 1) - (size_t )(const void *)(ice->ice_params->cands[i][ice->proto ].con_addr) == 1) || __s1_len >= 4) && (!((size_t) (const void *)((host) + 1) - (size_t)(const void *)(host) == 1 ) || __s2_len >= 4)) ? __builtin_strcmp (ice->ice_params ->cands[i][ice->proto].con_addr, host) : (__builtin_constant_p (ice->ice_params->cands[i][ice->proto].con_addr) && ((size_t)(const void *)((ice->ice_params->cands[i][ice ->proto].con_addr) + 1) - (size_t)(const void *)(ice->ice_params ->cands[i][ice->proto].con_addr) == 1) && (__s1_len = __builtin_strlen (ice->ice_params->cands[i][ice-> proto].con_addr), __s1_len < 4) ? (__builtin_constant_p (host ) && ((size_t)(const void *)((host) + 1) - (size_t)(const void *)(host) == 1) ? __builtin_strcmp (ice->ice_params-> cands[i][ice->proto].con_addr, host) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (host); int __result = (((const unsigned char *) (const char *) (ice->ice_params->cands[i][ice->proto].con_addr) )[0] - __s2[0]); if (__s1_len > 0 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (ice-> ice_params->cands[i][ice->proto].con_addr))[1] - __s2[1 ]); if (__s1_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->ice_params ->cands[i][ice->proto].con_addr))[2] - __s2[2]); if (__s1_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (ice->ice_params->cands[i][ice-> proto].con_addr))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p (host) && ((size_t)(const void *)((host) + 1) - (size_t )(const void *)(host) == 1) && (__s2_len = __builtin_strlen (host), __s2_len < 4) ? (__builtin_constant_p (ice->ice_params ->cands[i][ice->proto].con_addr) && ((size_t)(const void *)((ice->ice_params->cands[i][ice->proto].con_addr ) + 1) - (size_t)(const void *)(ice->ice_params->cands[ i][ice->proto].con_addr) == 1) ? __builtin_strcmp (ice-> ice_params->cands[i][ice->proto].con_addr, host) : (- ( __extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (ice->ice_params->cands[i][ice->proto ].con_addr); int __result = (((const unsigned char *) (const char *) (host))[0] - __s2[0]); if (__s2_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) ( host))[1] - __s2[1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) ( host))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (host ))[3] - __s2[3]); } } __result; })))) : __builtin_strcmp (ice ->ice_params->cands[i][ice->proto].con_addr, host))) ); }) && |
| 1162 | !strcmp(ice->ice_params->cands[i][ice->proto].cand_type, "relay")__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (ice->ice_params->cands[i][ice->proto].cand_type) && __builtin_constant_p ("relay") && (__s1_len = __builtin_strlen (ice->ice_params->cands[i][ice->proto].cand_type), __s2_len = __builtin_strlen ("relay"), (!((size_t)(const void *)((ice ->ice_params->cands[i][ice->proto].cand_type) + 1) - (size_t)(const void *)(ice->ice_params->cands[i][ice-> proto].cand_type) == 1) || __s1_len >= 4) && (!((size_t )(const void *)(("relay") + 1) - (size_t)(const void *)("relay" ) == 1) || __s2_len >= 4)) ? __builtin_strcmp (ice->ice_params ->cands[i][ice->proto].cand_type, "relay") : (__builtin_constant_p (ice->ice_params->cands[i][ice->proto].cand_type) && ((size_t)(const void *)((ice->ice_params->cands[i][ice ->proto].cand_type) + 1) - (size_t)(const void *)(ice-> ice_params->cands[i][ice->proto].cand_type) == 1) && (__s1_len = __builtin_strlen (ice->ice_params->cands[i ][ice->proto].cand_type), __s1_len < 4) ? (__builtin_constant_p ("relay") && ((size_t)(const void *)(("relay") + 1) - (size_t)(const void *)("relay") == 1) ? __builtin_strcmp (ice ->ice_params->cands[i][ice->proto].cand_type, "relay" ) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) ("relay"); int __result = (((const unsigned char *) (const char *) (ice->ice_params->cands[i][ice-> proto].cand_type))[0] - __s2[0]); if (__s1_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) (ice->ice_params->cands[i][ice->proto].cand_type ))[1] - __s2[1]); if (__s1_len > 1 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (ice-> ice_params->cands[i][ice->proto].cand_type))[2] - __s2[ 2]); if (__s1_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (ice->ice_params ->cands[i][ice->proto].cand_type))[3] - __s2[3]); } } __result ; }))) : (__builtin_constant_p ("relay") && ((size_t) (const void *)(("relay") + 1) - (size_t)(const void *)("relay" ) == 1) && (__s2_len = __builtin_strlen ("relay"), __s2_len < 4) ? (__builtin_constant_p (ice->ice_params->cands [i][ice->proto].cand_type) && ((size_t)(const void *)((ice->ice_params->cands[i][ice->proto].cand_type ) + 1) - (size_t)(const void *)(ice->ice_params->cands[ i][ice->proto].cand_type) == 1) ? __builtin_strcmp (ice-> ice_params->cands[i][ice->proto].cand_type, "relay") : ( - (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (ice->ice_params->cands[i][ice-> proto].cand_type); int __result = (((const unsigned char *) ( const char *) ("relay"))[0] - __s2[0]); if (__s2_len > 0 && __result == 0) { __result = (((const unsigned char *) (const char *) ("relay"))[1] - __s2[1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) ("relay"))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ("relay"))[3] - __s2[3]); } } __result; })))) : __builtin_strcmp (ice->ice_params->cands[i][ice->proto].cand_type, "relay" )))); })) { |
| 1163 | |
| 1164 | if (rtp_session->last_stun && elapsed < 5000) { |
| 1165 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1165, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, |
| 1166 | "Skiping RELAY stun/%s/dtls port change from %s:%u to %s:%u\n", is_rtcp ? "rtcp" : "rtp", |
| 1167 | host2, port2, |
| 1168 | host, port); |
| 1169 | |
| 1170 | goto end; |
| 1171 | } |
| 1172 | |
| 1173 | break; |
| 1174 | } |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1178, (const char*)(rtp_session->session), SWITCH_LOG_NOTICE, |
| 1179 | "Auto Changing stun/%s/dtls port from %s:%u to %s:%u\n", is_rtcp ? "rtcp" : "rtp", |
| 1180 | host2, port2, |
| 1181 | host, port); |
| 1182 | |
| 1183 | switch_rtp_change_ice_dest(rtp_session, ice, host, port); |
| 1184 | } |
| 1185 | |
| 1186 | switch_socket_sendto(sock_output, from_addr, 0, (void *) rpacket, &bytes); |
| 1187 | } |
| 1188 | } else if (packet->header.type == SWITCH_STUN_BINDING_ERROR_RESPONSE) { |
| 1189 | |
| 1190 | if (rtp_session->session) { |
| 1191 | switch_core_session_message_t msg = { 0 }; |
| 1192 | msg.from = __FILE__"src/switch_rtp.c"; |
| 1193 | msg.numeric_arg = packet->header.type; |
| 1194 | msg.pointer_arg = packet; |
| 1195 | msg.message_id = SWITCH_MESSAGE_INDICATE_STUN_ERROR; |
| 1196 | switch_core_session_receive_message(rtp_session->session, &msg)switch_core_session_perform_receive_message(rtp_session->session , &msg, "src/switch_rtp.c", (const char *)__func__, 1196); |
| 1197 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1197, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, |
| 1198 | "STUN/ICE binding error received on %s channel\n", rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 1199 | } |
| 1200 | |
| 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | |
| 1205 | |
| 1206 | end: |
| 1207 | |
| 1208 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 1209 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 1210 | } |
| 1211 | |
| 1212 | #ifdef ENABLE_ZRTP |
| 1213 | SWITCH_STANDARD_SCHED_FUNC(zrtp_cache_save_callback)static void zrtp_cache_save_callback (switch_scheduler_task_t *task) |
| 1214 | { |
| 1215 | zrtp_status_t status = zrtp_status_ok; |
| 1216 | |
| 1217 | status = zrtp_def_cache_store(zrtp_global); |
| 1218 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1218, ((void*)0), SWITCH_LOG_DEBUG, "Saving ZRTP cache: %s\n", zrtp_status_ok == status ? "OK" : "FAIL"); |
| 1219 | task->runtime = switch_epoch_time_now(NULL((void*)0)) + 900; |
| 1220 | } |
| 1221 | |
| 1222 | static int zrtp_send_rtp_callback(const zrtp_stream_t *stream, char *rtp_packet, unsigned int rtp_packet_length) |
| 1223 | { |
| 1224 | switch_rtp_t *rtp_session = zrtp_stream_get_userdata(stream); |
| 1225 | switch_size_t len = rtp_packet_length; |
| 1226 | zrtp_status_t status = zrtp_status_ok; |
| 1227 | |
| 1228 | switch_socket_sendto(rtp_session->sock_output, rtp_session->remote_addr, 0, rtp_packet, &len); |
| 1229 | return status; |
| 1230 | } |
| 1231 | |
| 1232 | static void zrtp_event_callback(zrtp_stream_t *stream, unsigned event) |
| 1233 | { |
| 1234 | switch_rtp_t *rtp_session = zrtp_stream_get_userdata(stream); |
| 1235 | zrtp_session_info_t zrtp_session_info; |
| 1236 | |
| 1237 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 1238 | switch_event_t *fsevent = NULL((void*)0); |
| 1239 | const char *type; |
| 1240 | |
| 1241 | type = rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"; |
| 1242 | |
| 1243 | switch (event) { |
| 1244 | case ZRTP_EVENT_IS_SECURE: |
| 1245 | { |
| 1246 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_SEND] = 1; |
| 1247 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_RECV] = 1; |
| 1248 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 1249 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 1; |
| 1250 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 1; |
| 1251 | } |
| 1252 | if (zrtp_status_ok == zrtp_session_get(stream->session, &zrtp_session_info)) { |
| 1253 | if (zrtp_session_info.sas_is_ready) { |
| 1254 | |
| 1255 | switch_channel_set_variable_name_printf(channel, "true", "zrtp_secure_media_confirmed_%s", type); |
| 1256 | switch_channel_set_variable_name_printf(channel, stream->session->sas1.buffer, "zrtp_sas1_string_%s", type); |
| 1257 | switch_channel_set_variable_name_printf(channel, stream->session->sas2.buffer, "zrtp_sas2_string", type); |
| 1258 | zrtp_verified_set(zrtp_global, &stream->session->zid, &stream->session->peer_zid, (uint8_t)1); |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 1263 | |
| 1264 | |
| 1265 | if (rtp_session->session) { |
| 1266 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 1267 | switch_rtp_t *video_rtp_session = switch_channel_get_private(channel, "__zrtp_video_rtp_session"); |
| 1268 | |
| 1269 | if (!video_rtp_session) { |
| 1270 | video_rtp_session = switch_channel_get_private_partner(channel, "__zrtp_video_rtp_session"); |
| 1271 | } |
| 1272 | |
| 1273 | if (video_rtp_session) { |
| 1274 | if (zrtp_status_ok != zrtp_stream_attach(stream->session, &video_rtp_session->zrtp_stream)) { |
| 1275 | abort(); |
| 1276 | } |
| 1277 | zrtp_stream_set_userdata(video_rtp_session->zrtp_stream, video_rtp_session); |
| 1278 | if (switch_true(switch_channel_get_variable(channel, "zrtp_enrollment")switch_channel_get_variable_dup(channel, "zrtp_enrollment", SWITCH_TRUE , -1))) { |
| 1279 | zrtp_stream_registration_start(video_rtp_session->zrtp_stream, video_rtp_session->ssrc); |
| 1280 | } else { |
| 1281 | zrtp_stream_start(video_rtp_session->zrtp_stream, video_rtp_session->ssrc); |
| 1282 | } |
| 1283 | } |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | if (switch_event_create(&fsevent, SWITCH_EVENT_CALL_SECURE)switch_event_create_subclass_detailed("src/switch_rtp.c", (const char * )(const char *)__func__, 1287, &fsevent, SWITCH_EVENT_CALL_SECURE , ((void*)0)) == SWITCH_STATUS_SUCCESS) { |
| 1288 | switch_event_add_header(fsevent, SWITCH_STACK_BOTTOM, "secure_media_type", "%s", type); |
| 1289 | switch_event_add_header(fsevent, SWITCH_STACK_BOTTOM, "secure_type", "zrtp:%s:%s", stream->session->sas1.buffer, |
| 1290 | stream->session->sas2.buffer); |
| 1291 | switch_event_add_header_string(fsevent, SWITCH_STACK_BOTTOM, "caller-unique-id", switch_channel_get_uuid(channel)); |
| 1292 | switch_event_fire(&fsevent)switch_event_fire_detailed("src/switch_rtp.c", (const char * ) (const char *)__func__, 1292, &fsevent, ((void*)0)); |
| 1293 | } |
| 1294 | } |
| 1295 | break; |
| 1296 | #if 0 |
| 1297 | case ZRTP_EVENT_NO_ZRTP_QUICK: |
| 1298 | { |
| 1299 | if (stream != NULL((void*)0)) { |
| 1300 | zrtp_stream_stop(stream); |
| 1301 | } |
| 1302 | } |
| 1303 | break; |
| 1304 | #endif |
| 1305 | case ZRTP_EVENT_IS_CLIENT_ENROLLMENT: |
| 1306 | { |
| 1307 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1307, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Enrolled complete!\n"); |
| 1308 | switch_channel_set_variable_name_printf(channel, "true", "zrtp_enroll_complete_%s", type); |
| 1309 | } |
| 1310 | break; |
| 1311 | |
| 1312 | case ZRTP_EVENT_USER_ALREADY_ENROLLED: |
| 1313 | { |
| 1314 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1314, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "User already enrolled!\n"); |
| 1315 | switch_channel_set_variable_name_printf(channel, "true", "zrtp_already_enrolled_%s", type); |
| 1316 | } |
| 1317 | break; |
| 1318 | |
| 1319 | case ZRTP_EVENT_NEW_USER_ENROLLED: |
| 1320 | { |
| 1321 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1321, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "New user enrolled!\n"); |
| 1322 | switch_channel_set_variable_name_printf(channel, "true", "zrtp_new_user_enrolled_%s", type); |
| 1323 | } |
| 1324 | break; |
| 1325 | |
| 1326 | case ZRTP_EVENT_USER_UNENROLLED: |
| 1327 | { |
| 1328 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1328, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "User unenrolled!\n"); |
| 1329 | switch_channel_set_variable_name_printf(channel, "true", "zrtp_user_unenrolled_%s", type); |
| 1330 | } |
| 1331 | break; |
| 1332 | |
| 1333 | case ZRTP_EVENT_IS_PENDINGCLEAR: |
| 1334 | { |
| 1335 | switch_channel_set_variable_name_printf(channel, "false", "zrtp_secure_media_confirmed_%s", type); |
| 1336 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_SEND] = 0; |
| 1337 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_RECV] = 0; |
| 1338 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 1339 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 1340 | rtp_session->zrtp_mitm_tries = 0; |
| 1341 | } |
| 1342 | break; |
| 1343 | |
| 1344 | case ZRTP_EVENT_NO_ZRTP: |
| 1345 | { |
| 1346 | switch_channel_set_variable_name_printf(channel, "false", "zrtp_secure_media_confirmed_%s", type); |
| 1347 | } |
| 1348 | break; |
| 1349 | |
| 1350 | default: |
| 1351 | break; |
| 1352 | } |
| 1353 | } |
| 1354 | |
| 1355 | static void zrtp_logger(int level, const char *data, int len, int offset) |
| 1356 | { |
| 1357 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1357, ((void*)0), SWITCH_LOG_DEBUG, "%s", data); |
| 1358 | } |
| 1359 | #endif |
| 1360 | |
| 1361 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_init(switch_memory_pool_t *pool) |
| 1362 | { |
| 1363 | #ifdef ENABLE_ZRTP |
| 1364 | const char *zid_string = switch_core_get_variable_pdup("switch_serial", pool); |
| 1365 | const char *zrtp_enabled = switch_core_get_variable_pdup("zrtp_enabled", pool); |
| 1366 | zrtp_config_t zrtp_config; |
| 1367 | char zrtp_cache_path[256] = ""; |
| 1368 | zrtp_on = zrtp_enabled ? switch_true(zrtp_enabled) : 0; |
| 1369 | #endif |
| 1370 | if (global_init) { |
| 1371 | return; |
| 1372 | } |
| 1373 | switch_core_hash_init(&alloc_hash)switch_core_hash_init_case(&alloc_hash, SWITCH_TRUE); |
| 1374 | #ifdef ENABLE_ZRTP |
| 1375 | if (zrtp_on) { |
| 1376 | uint32_t cache_len; |
| 1377 | zrtp_config_defaults(&zrtp_config); |
| 1378 | strcpy(zrtp_config.client_id, "FreeSWITCH"); |
| 1379 | zrtp_config.is_mitm = 1; |
| 1380 | zrtp_config.lic_mode = ZRTP_LICENSE_MODE_ACTIVE; |
| 1381 | switch_snprintf(zrtp_cache_path, sizeof(zrtp_cache_path), "%s%szrtp.dat", SWITCH_GLOBAL_dirs.db_dir, SWITCH_PATH_SEPARATOR"/"); |
| 1382 | cache_len=(uint32_t)strlen(zrtp_cache_path); |
| 1383 | ZSTR_SET_EMPTY(zrtp_config.def_cache_path); |
| 1384 | zrtp_config.def_cache_path.length = cache_len > zrtp_config.def_cache_path.max_length ? zrtp_config.def_cache_path.max_length : (uint16_t)cache_len; |
| 1385 | strncpy(zrtp_config.def_cache_path.buffer, zrtp_cache_path, zrtp_config.def_cache_path.max_length)__builtin_strncpy (zrtp_config.def_cache_path.buffer, zrtp_cache_path , zrtp_config.def_cache_path.max_length); |
| 1386 | zrtp_config.cb.event_cb.on_zrtp_protocol_event = (void (*)(zrtp_stream_t*,zrtp_protocol_event_t))zrtp_event_callback; |
| 1387 | zrtp_config.cb.misc_cb.on_send_packet = zrtp_send_rtp_callback; |
| 1388 | zrtp_config.cb.event_cb.on_zrtp_security_event = (void (*)(zrtp_stream_t*,zrtp_security_event_t))zrtp_event_callback; |
| 1389 | zrtp_log_set_log_engine((zrtp_log_engine *) zrtp_logger); |
| 1390 | zrtp_log_set_level(4); |
| 1391 | if (zrtp_status_ok == zrtp_init(&zrtp_config, &zrtp_global)) { |
| 1392 | memcpy(zid, zid_string, 12); |
| 1393 | switch_scheduler_add_task(switch_epoch_time_now(NULL((void*)0)) + 900, zrtp_cache_save_callback, "zrtp_cache_save", "core", 0, NULL((void*)0), |
| 1394 | SSHF_NONE | SSHF_NO_DEL); |
| 1395 | } else { |
| 1396 | switch_core_set_variable("zrtp_enabled", NULL((void*)0)); |
| 1397 | zrtp_on = 0; |
| 1398 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1398, ((void*)0), SWITCH_LOG_CRIT, "ZRTP init failed!\n"); |
| 1399 | } |
| 1400 | } |
| 1401 | #endif |
| 1402 | #ifdef ENABLE_SRTP1 |
| 1403 | srtp_init(); |
| 1404 | #endif |
| 1405 | switch_mutex_init(&port_lock, SWITCH_MUTEX_NESTED0x1, pool); |
| 1406 | global_init = 1; |
| 1407 | } |
| 1408 | |
| 1409 | static uint8_t get_next_write_ts(switch_rtp_t *rtp_session, uint32_t timestamp) |
| 1410 | { |
| 1411 | uint8_t m = 0; |
| 1412 | |
| 1413 | if (rtp_session->rtp_bugs & RTP_BUG_SEND_LINEAR_TIMESTAMPS) { |
| 1414 | rtp_session->ts += rtp_session->samples_per_interval; |
| 1415 | if (rtp_session->ts <= rtp_session->last_write_ts && rtp_session->ts > 0) { |
| 1416 | rtp_session->ts = rtp_session->last_write_ts + rtp_session->samples_per_interval; |
| 1417 | } |
| 1418 | } else if (timestamp) { |
| 1419 | rtp_session->ts = (uint32_t) timestamp; |
| 1420 | /* Send marker bit if timestamp is lower/same as before (resetted/new timer) */ |
| 1421 | if (rtp_session->ts <= rtp_session->last_write_ts && !(rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) { |
| 1422 | m++; |
| 1423 | } |
| 1424 | } else if (switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER)) { |
| 1425 | rtp_session->ts = rtp_session->timer.samplecount; |
| 1426 | |
| 1427 | if (rtp_session->ts <= rtp_session->last_write_ts && rtp_session->ts > 0) { |
| 1428 | rtp_session->ts = rtp_session->last_write_ts + rtp_session->samples_per_interval; |
| 1429 | } |
| 1430 | } else { |
| 1431 | rtp_session->ts += rtp_session->samples_per_interval; |
| 1432 | if (rtp_session->ts <= rtp_session->last_write_ts && rtp_session->ts > 0) { |
| 1433 | rtp_session->ts = rtp_session->last_write_ts + rtp_session->samples_per_interval; |
| 1434 | } |
| 1435 | } |
| 1436 | |
| 1437 | return m; |
| 1438 | } |
| 1439 | |
| 1440 | static void send_fir(switch_rtp_t *rtp_session) |
| 1441 | { |
| 1442 | |
| 1443 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && rtp_session->ice.ice_user) { |
| 1444 | return; |
| 1445 | } |
| 1446 | |
| 1447 | if (rtp_session->remote_ssrc == 0) { |
| 1448 | rtp_session->remote_ssrc = rtp_session->stats.rtcp.peer_ssrc; |
| 1449 | } |
| 1450 | |
| 1451 | if (rtp_session->remote_ssrc == 0) { |
| 1452 | rtp_session->remote_ssrc = ntohl(rtp_session->recv_msg.header.ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ssrc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 1453 | } |
| 1454 | |
| 1455 | if (rtp_session->remote_ssrc == 0) { |
| 1456 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1456, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Peer ssrc not known yet for FIR\n"); |
| 1457 | return; |
| 1458 | } |
| 1459 | |
| 1460 | if (rtp_session->rtcp_sock_output && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 1461 | rtcp_fir_t *fir = (rtcp_fir_t *) rtp_session->rtcp_ext_send_msg.body; |
| 1462 | switch_size_t rtcp_bytes; |
| 1463 | |
| 1464 | rtp_session->rtcp_ext_send_msg.header.version = 2; |
| 1465 | rtp_session->rtcp_ext_send_msg.header.p = 0; |
| 1466 | rtp_session->rtcp_ext_send_msg.header.fmt = 4; |
| 1467 | rtp_session->rtcp_ext_send_msg.header.pt = 206; |
| 1468 | |
| 1469 | rtp_session->rtcp_ext_send_msg.header.send_ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 1470 | rtp_session->rtcp_ext_send_msg.header.recv_ssrc = 0;//htonl(rtp_session->stats.rtcp.peer_ssrc); |
| 1471 | |
| 1472 | //fir->ssrc = htonl(rtp_session->stats.rtcp.peer_ssrc); |
| 1473 | fir->ssrc = htonl(rtp_session->remote_ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->remote_ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 1474 | fir->seq = ++rtp_session->fir_seq; |
| 1475 | fir->r1 = fir->r2 = fir->r3 = 0; |
| 1476 | |
| 1477 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1477, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "Sending RTCP FIR %d\n", rtp_session->fir_seq); |
| 1478 | |
| 1479 | rtcp_bytes = sizeof(switch_rtcp_ext_hdr_t) + sizeof(rtcp_fir_t); |
| 1480 | rtp_session->rtcp_ext_send_msg.header.length = htons((u_short)(rtcp_bytes / 4) - 1)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((u_short)(rtcp_bytes / 4) - 1); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1481 | |
| 1482 | |
| 1483 | #ifdef ENABLE_SRTP1 |
| 1484 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 1485 | int sbytes = (int) rtcp_bytes; |
| 1486 | int stat = srtp_protect_rtcp(rtp_session->send_ctx[rtp_session->srtp_idx_rtcp], &rtp_session->rtcp_ext_send_msg.header, &sbytes); |
| 1487 | |
| 1488 | if (stat) { |
| 1489 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1489, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP RTCP protection failed with code %d\n", stat); |
| 1490 | goto end; |
| 1491 | } else { |
| 1492 | rtcp_bytes = sbytes; |
| 1493 | } |
| 1494 | |
| 1495 | } |
| 1496 | #endif |
| 1497 | |
| 1498 | #ifdef ENABLE_ZRTP |
| 1499 | /* ZRTP Send */ |
| 1500 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 1501 | unsigned int sbytes = (int) rtcp_bytes; |
| 1502 | zrtp_status_t stat = zrtp_status_fail; |
| 1503 | |
| 1504 | stat = zrtp_process_rtcp(rtp_session->zrtp_stream, (void *) &rtp_session->rtcp_ext_send_msg, &sbytes); |
| 1505 | |
| 1506 | switch (stat) { |
| 1507 | case zrtp_status_ok: |
| 1508 | break; |
| 1509 | case zrtp_status_drop: |
| 1510 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1510, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 1511 | goto end; |
| 1512 | break; |
| 1513 | case zrtp_status_fail: |
| 1514 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1514, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 1515 | break; |
| 1516 | default: |
| 1517 | break; |
| 1518 | } |
| 1519 | |
| 1520 | rtcp_bytes = sbytes; |
| 1521 | } |
| 1522 | #endif |
| 1523 | |
| 1524 | #ifdef DEBUG_EXTRA |
| 1525 | { |
| 1526 | const char *old_host; |
| 1527 | char bufb[30]; |
| 1528 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->rtcp_remote_addr); |
| 1529 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1529, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "%s SEND %s RTCP %s:%d %ld\n", |
| 1530 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 1531 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 1532 | old_host, |
| 1533 | switch_sockaddr_get_port(rtp_session->rtcp_remote_addr), |
| 1534 | rtcp_bytes); |
| 1535 | } |
| 1536 | #endif |
| 1537 | if (switch_socket_sendto(rtp_session->rtcp_sock_output, rtp_session->rtcp_remote_addr, 0, (void *)&rtp_session->rtcp_ext_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) { |
| 1538 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1538, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG,"RTCP packet not written\n"); |
| 1539 | } else { |
| 1540 | rtp_session->stats.inbound.period_packet_count = 0; |
| 1541 | } |
| 1542 | } |
| 1543 | |
| 1544 | #ifdef ENABLE_SRTP1 |
| 1545 | end: |
| 1546 | #endif |
| 1547 | |
| 1548 | return; |
| 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | |
| 1553 | static void send_pli(switch_rtp_t *rtp_session) |
| 1554 | { |
| 1555 | |
| 1556 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && rtp_session->ice.ice_user) { |
| 1557 | return; |
| 1558 | } |
| 1559 | |
| 1560 | if (rtp_session->rtcp_sock_output && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 1561 | switch_size_t rtcp_bytes; |
| 1562 | |
| 1563 | rtp_session->rtcp_ext_send_msg.header.version = 2; |
| 1564 | rtp_session->rtcp_ext_send_msg.header.p = 0; |
| 1565 | rtp_session->rtcp_ext_send_msg.header.fmt = 1; |
| 1566 | rtp_session->rtcp_ext_send_msg.header.pt = 206; |
| 1567 | |
| 1568 | rtp_session->rtcp_ext_send_msg.header.send_ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 1569 | rtp_session->rtcp_ext_send_msg.header.recv_ssrc = 0; |
| 1570 | |
| 1571 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1571, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "Sending RTCP PLI\n"); |
| 1572 | |
| 1573 | rtcp_bytes = sizeof(switch_rtcp_ext_hdr_t); |
| 1574 | rtp_session->rtcp_ext_send_msg.header.length = htons((u_short)(rtcp_bytes / 4) - 1)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((u_short)(rtcp_bytes / 4) - 1); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1575 | |
| 1576 | |
| 1577 | #ifdef ENABLE_SRTP1 |
| 1578 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 1579 | int sbytes = (int) rtcp_bytes; |
| 1580 | int stat = srtp_protect_rtcp(rtp_session->send_ctx[rtp_session->srtp_idx_rtcp], &rtp_session->rtcp_ext_send_msg.header, &sbytes); |
| 1581 | |
| 1582 | if (stat) { |
| 1583 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1583, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP RTCP protection failed with code %d\n", stat); |
| 1584 | goto end; |
| 1585 | } else { |
| 1586 | rtcp_bytes = sbytes; |
| 1587 | } |
| 1588 | |
| 1589 | } |
| 1590 | #endif |
| 1591 | |
| 1592 | #ifdef ENABLE_ZRTP |
| 1593 | /* ZRTP Send */ |
| 1594 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 1595 | unsigned int sbytes = (int) rtcp_bytes; |
| 1596 | zrtp_status_t stat = zrtp_status_fail; |
| 1597 | |
| 1598 | stat = zrtp_process_rtcp(rtp_session->zrtp_stream, (void *) &rtp_session->rtcp_ext_send_msg, &sbytes); |
| 1599 | |
| 1600 | switch (stat) { |
| 1601 | case zrtp_status_ok: |
| 1602 | break; |
| 1603 | case zrtp_status_drop: |
| 1604 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1604, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 1605 | goto end; |
| 1606 | break; |
| 1607 | case zrtp_status_fail: |
| 1608 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1608, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 1609 | break; |
| 1610 | default: |
| 1611 | break; |
| 1612 | } |
| 1613 | |
| 1614 | rtcp_bytes = sbytes; |
| 1615 | } |
| 1616 | #endif |
| 1617 | |
| 1618 | #ifdef DEBUG_EXTRA |
| 1619 | { |
| 1620 | const char *old_host; |
| 1621 | char bufb[30]; |
| 1622 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->rtcp_remote_addr); |
| 1623 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1623, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "%s SEND %s RTCP %s:%d %ld\n", |
| 1624 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 1625 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 1626 | old_host, |
| 1627 | switch_sockaddr_get_port(rtp_session->rtcp_remote_addr), |
| 1628 | rtcp_bytes); |
| 1629 | } |
| 1630 | |
| 1631 | #endif |
| 1632 | if (switch_socket_sendto(rtp_session->rtcp_sock_output, rtp_session->rtcp_remote_addr, 0, (void *)&rtp_session->rtcp_ext_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) { |
| 1633 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1633, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG,"RTCP packet not written\n"); |
| 1634 | } else { |
| 1635 | rtp_session->stats.inbound.period_packet_count = 0; |
| 1636 | } |
| 1637 | } |
| 1638 | |
| 1639 | #ifdef ENABLE_SRTP1 |
| 1640 | end: |
| 1641 | #endif |
| 1642 | return; |
| 1643 | } |
| 1644 | |
| 1645 | static void do_mos(switch_rtp_t *rtp_session, int force) { |
| 1646 | |
| 1647 | if ((switch_size_t)rtp_session->stats.inbound.recved < rtp_session->stats.inbound.flaws) { |
| 1648 | rtp_session->stats.inbound.flaws = 0; |
| 1649 | } |
| 1650 | |
| 1651 | if (rtp_session->stats.inbound.recved > 0 && |
| 1652 | rtp_session->stats.inbound.flaws && (force || rtp_session->stats.inbound.last_flaw != rtp_session->stats.inbound.flaws)) { |
| 1653 | int R; |
| 1654 | |
| 1655 | if (rtp_session->consecutive_flaws++) { |
| 1656 | int diff, penalty; |
| 1657 | |
| 1658 | diff = (rtp_session->stats.inbound.flaws - rtp_session->stats.inbound.last_flaw); |
| 1659 | |
| 1660 | if (diff < 1) diff = 1; |
| 1661 | |
| 1662 | penalty = diff * 2; |
| 1663 | |
| 1664 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1664, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "%s %s %d consecutive flaws, adding %d flaw penalty\n", |
| 1665 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 1666 | rtp_session->consecutive_flaws, penalty); |
| 1667 | |
| 1668 | rtp_session->stats.inbound.flaws += penalty; |
| 1669 | } |
| 1670 | |
| 1671 | R = (int)((double)((double)(rtp_session->stats.inbound.recved - rtp_session->stats.inbound.flaws) / (double)rtp_session->stats.inbound.recved) * 100.0); |
| 1672 | |
| 1673 | if (R < 0 || R > 100) R = 100; |
| 1674 | |
| 1675 | rtp_session->stats.inbound.R = R; |
| 1676 | rtp_session->stats.inbound.mos = 1 + (0.035) * R + (.000007) * R * (R-60) * (100-R); |
| 1677 | rtp_session->stats.inbound.last_flaw = rtp_session->stats.inbound.flaws; |
| 1678 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1678, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "%s %s stat %0.2f %ld/%d flaws: %ld mos: %0.2f v: %0.2f %0.2f/%0.2f\n", |
| 1679 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 1680 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 1681 | rtp_session->stats.inbound.R, |
| 1682 | (long int)(rtp_session->stats.inbound.recved - rtp_session->stats.inbound.flaws), rtp_session->stats.inbound.recved, |
| 1683 | (long int)rtp_session->stats.inbound.flaws, |
| 1684 | rtp_session->stats.inbound.mos, |
| 1685 | rtp_session->stats.inbound.variance, |
| 1686 | rtp_session->stats.inbound.min_variance, |
| 1687 | rtp_session->stats.inbound.max_variance |
| 1688 | ); |
| 1689 | } else { |
| 1690 | rtp_session->consecutive_flaws = 0; |
| 1691 | } |
| 1692 | } |
| 1693 | |
| 1694 | void burstr_calculate ( int loss[], int received, double *burstr, double *lossr ) |
| 1695 | { |
| 1696 | int lost = 0; |
| 1697 | int bursts = 0; |
| 1698 | int i; |
| 1699 | |
| 1700 | for ( i = 0; i < LOST_BURST_ANALYZE500; i++ ) { |
| 1701 | lost += i * loss[i]; |
| 1702 | bursts += loss[i]; |
| 1703 | } |
| 1704 | if (received > 0 && bursts > 0) { |
| 1705 | *burstr = (double)((double)lost / (double)bursts) / (double)(1.0 / ( 1.0 - (double)lost / (double)received )); |
| 1706 | if (*burstr < 0) { |
| 1707 | *burstr = - *burstr; |
| 1708 | } |
| 1709 | } else { |
| 1710 | *burstr = 0; |
| 1711 | } |
| 1712 | if (received > 0) { |
| 1713 | *lossr = (double)((double)lost / (double)received); |
| 1714 | } else { |
| 1715 | *lossr = 0; |
| 1716 | } |
| 1717 | } |
| 1718 | |
| 1719 | static void reset_jitter_seq(switch_rtp_t *rtp_session) |
| 1720 | { |
| 1721 | rtp_session->stats.inbound.last_proc_time = 0; |
| 1722 | rtp_session->stats.inbound.last_processed_seq = 0; |
| 1723 | rtp_session->jitter_lead = 0; |
| 1724 | rtp_session->consecutive_flaws = 0; |
| 1725 | rtp_session->stats.inbound.last_flaw = 0; |
| 1726 | } |
| 1727 | |
| 1728 | static void check_jitter(switch_rtp_t *rtp_session) |
| 1729 | { |
| 1730 | switch_time_t current_time; |
| 1731 | int64_t diff_time = 0, cur_diff = 0; |
| 1732 | int seq; |
| 1733 | |
| 1734 | current_time = switch_micro_time_now() / 1000; |
| 1735 | |
| 1736 | if (rtp_session->flags[SWITCH_RTP_FLAG_PAUSE] || rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] || rtp_session->dtmf_data.in_digit_ts) { |
| 1737 | reset_jitter_seq(rtp_session); |
| 1738 | return; |
| 1739 | } |
| 1740 | |
| 1741 | if (++rtp_session->jitter_lead < JITTER_LEAD_FRAMES10 || !rtp_session->stats.inbound.last_proc_time) { |
| 1742 | rtp_session->stats.inbound.last_proc_time = current_time; |
| 1743 | return; |
| 1744 | } |
| 1745 | |
| 1746 | diff_time = (current_time - rtp_session->stats.inbound.last_proc_time); |
| 1747 | seq = (int)(uint16_t) ntohs((uint16_t) rtp_session->recv_msg.header.seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1748 | |
| 1749 | /* Burst and Packet Loss */ |
| 1750 | rtp_session->stats.inbound.recved++; |
| 1751 | |
| 1752 | if (rtp_session->stats.inbound.last_processed_seq > 0 && seq > (int)(rtp_session->stats.inbound.last_processed_seq + 1)) { |
| 1753 | int lost = (seq - rtp_session->stats.inbound.last_processed_seq - 1); |
| 1754 | |
| 1755 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1755, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "%s Got: %s seq %d but expected: %d lost: %d\n", |
| 1756 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 1757 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 1758 | seq, |
| 1759 | (rtp_session->stats.inbound.last_processed_seq + 1), lost); |
| 1760 | rtp_session->stats.inbound.last_loss++; |
| 1761 | |
| 1762 | if (rtp_session->stats.inbound.last_loss > 0 && rtp_session->stats.inbound.last_loss < LOST_BURST_CAPTURE1024) { |
| 1763 | rtp_session->stats.inbound.loss[rtp_session->stats.inbound.last_loss] += lost; |
| 1764 | } |
| 1765 | |
| 1766 | rtp_session->stats.inbound.flaws += lost; |
| 1767 | |
| 1768 | } else { |
| 1769 | rtp_session->stats.inbound.last_loss = 0; |
| 1770 | } |
| 1771 | |
| 1772 | rtp_session->stats.inbound.last_processed_seq = seq; |
| 1773 | |
| 1774 | /* Burst and Packet Loss */ |
| 1775 | |
| 1776 | if (current_time > rtp_session->next_stat_check_time) { |
| 1777 | rtp_session->next_stat_check_time = current_time + 5000; |
| 1778 | burstr_calculate(rtp_session->stats.inbound.loss, rtp_session->stats.inbound.recved, |
| 1779 | &(rtp_session->stats.inbound.burstrate), &(rtp_session->stats.inbound.lossrate)); |
| 1780 | do_mos(rtp_session, SWITCH_TRUE); |
| 1781 | } else { |
| 1782 | do_mos(rtp_session, SWITCH_FALSE); |
| 1783 | } |
| 1784 | |
| 1785 | |
| 1786 | if ( diff_time < 0 ) { |
| 1787 | diff_time = -diff_time; |
| 1788 | } |
| 1789 | |
| 1790 | rtp_session->stats.inbound.jitter_n++; |
| 1791 | rtp_session->stats.inbound.jitter_add += diff_time; |
| 1792 | |
| 1793 | cur_diff = (int64_t)(diff_time - rtp_session->stats.inbound.mean_interval); |
| 1794 | |
| 1795 | rtp_session->stats.inbound.jitter_addsq += (cur_diff * cur_diff); |
| 1796 | rtp_session->stats.inbound.last_proc_time = current_time; |
| 1797 | |
| 1798 | if (rtp_session->stats.inbound.jitter_n > 0) { |
| 1799 | double ipdv; |
| 1800 | |
| 1801 | rtp_session->stats.inbound.mean_interval = (double)rtp_session->stats.inbound.jitter_add / (double)rtp_session->stats.inbound.jitter_n; |
| 1802 | |
| 1803 | if (!rtp_session->old_mean) { |
| 1804 | rtp_session->old_mean = rtp_session->stats.inbound.mean_interval; |
| 1805 | } |
| 1806 | |
| 1807 | rtp_session->stats.inbound.variance = (double)rtp_session->stats.inbound.jitter_addsq / (double)rtp_session->stats.inbound.jitter_n; |
| 1808 | |
| 1809 | //printf("CHECK %d +%ld +%ld %f %f\n", rtp_session->timer.samplecount, diff_time, (diff_time * diff_time), rtp_session->stats.inbound.mean_interval, rtp_session->stats.inbound.variance); |
| 1810 | |
| 1811 | ipdv = rtp_session->old_mean - rtp_session->stats.inbound.mean_interval; |
| 1812 | |
| 1813 | if ( ipdv > IPDV_THRESHOLD1.0 ) { /* It shows Increasing Delays */ |
| 1814 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 1814, ((void*)0), SWITCH_LOG_DEBUG1, "Calculated Instantaneous Packet Delay Variation: %s packet %lf\n", |
| 1815 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", ipdv); |
| 1816 | } |
| 1817 | |
| 1818 | if ( rtp_session->stats.inbound.variance < rtp_session->stats.inbound.min_variance || rtp_session->stats.inbound.min_variance == 0 ) { |
| 1819 | rtp_session->stats.inbound.min_variance = rtp_session->stats.inbound.variance; |
| 1820 | } |
| 1821 | |
| 1822 | if ( rtp_session->stats.inbound.variance > rtp_session->stats.inbound.max_variance ) { |
| 1823 | rtp_session->stats.inbound.max_variance = rtp_session->stats.inbound.variance; |
| 1824 | } |
| 1825 | |
| 1826 | rtp_session->old_mean = rtp_session->stats.inbound.mean_interval; |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | static void rtcp_generate_sender_info(switch_rtp_t *rtp_session, struct switch_rtcp_sender_info *sr){ |
| 1831 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 1832 | switch_time_t now; |
| 1833 | uint32_t sec, ntp_sec, ntp_usec; |
| 1834 | switch_time_exp_t now_hr; |
| 1835 | now = switch_time_now(); |
| 1836 | sec = (uint32_t)(now/1000000); /* convert to seconds */ |
| 1837 | ntp_sec = sec+NTP_TIME_OFFSET2208988800UL; /* convert to NTP seconds */ |
| 1838 | sr->ntp_msw = htonl(ntp_sec)(__extension__ ({ unsigned int __v, __x = (ntp_sec); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); /* store result in "most significant word" */ |
| 1839 | ntp_usec = (uint32_t)(now - (sec*1000000)); /* remove seconds to keep only the microseconds */ |
| 1840 | sr->ntp_lsw = htonl((u_long)(ntp_usec*(double)(((uint64_t)1)<<32)*1.0e-6))(__extension__ ({ unsigned int __v, __x = ((u_long)(ntp_usec* (double)(((uint64_t)1)<<32)*1.0e-6)); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); /* convert microseconds to fraction of 32bits and store result in "least significatn word" */ |
| 1841 | |
| 1842 | sr->ts = htonl(rtp_session->last_write_ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->last_write_ts ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 1843 | sr->pc = htonl(rtp_session->stats.outbound.packet_count)(__extension__ ({ unsigned int __v, __x = (rtp_session->stats .outbound.packet_count); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000 ) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x ) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 1844 | sr->oc = htonl((rtp_session->stats.outbound.raw_bytes - rtp_session->stats.outbound.packet_count * sizeof(srtp_hdr_t)))(__extension__ ({ unsigned int __v, __x = ((rtp_session->stats .outbound.raw_bytes - rtp_session->stats.outbound.packet_count * sizeof(srtp_hdr_t))); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000 ) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x ) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 1845 | |
| 1846 | switch_time_exp_gmt(&now_hr,now); |
| 1847 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1847, (const char*)(session), SWITCH_LOG_DEBUG10,"Sending an RTCP packet[%04d-%02d-%02d %02d:%02d:%02d.%d] lsr[%u] msw[%u] lsw[%u] stats_ssrc[%u]\n", |
| 1848 | 1900 + now_hr.tm_year, now_hr.tm_mday, now_hr.tm_mon, now_hr.tm_hour, now_hr.tm_min, now_hr.tm_sec, now_hr.tm_usec, |
| 1849 | (ntohl(sr->ntp_lsw)(__extension__ ({ unsigned int __v, __x = (sr->ntp_lsw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; }))&0xffff0000)>>16 | (ntohl(sr->ntp_msw)(__extension__ ({ unsigned int __v, __x = (sr->ntp_msw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; }))&0x0000ffff)<<16, |
| 1850 | ntohl(sr->ntp_msw)(__extension__ ({ unsigned int __v, __x = (sr->ntp_msw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })),ntohl(sr->ntp_lsw)(__extension__ ({ unsigned int __v, __x = (sr->ntp_lsw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })), rtp_session->stats.rtcp.ssrc |
| 1851 | ); |
| 1852 | } |
| 1853 | |
| 1854 | |
| 1855 | static void rtcp_generate_report_block(switch_rtp_t *rtp_session, struct switch_rtcp_report_block *rtcp_report_block){ |
| 1856 | #ifdef DEBUG_RTCP |
| 1857 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 1858 | #endif |
| 1859 | switch_rtcp_numbers_t * stats=&rtp_session->stats.rtcp; |
| 1860 | switch_time_t now; |
| 1861 | uint32_t expected_pkt, dlsr; |
| 1862 | int32_t pkt_lost; |
| 1863 | uint32_t ntp_sec, ntp_usec, lsr_now, sec; |
| 1864 | now = switch_time_now(); |
| 1865 | sec = (uint32_t)(now/1000000); /* convert to seconds */ |
| 1866 | ntp_sec = sec+NTP_TIME_OFFSET2208988800UL; /* convert to NTP seconds */ |
| 1867 | ntp_usec = (uint32_t)(now - (sec*1000000)); /* remove seconds to keep only the microseconds */ |
| 1868 | |
| 1869 | /* Packet loss */ |
| 1870 | if (stats->rtcp_rtp_count == 0) { |
| 1871 | expected_pkt = stats->high_ext_seq_recv - stats->base_seq + 1; |
| 1872 | } else { |
| 1873 | expected_pkt = stats->high_ext_seq_recv - stats->last_rpt_ext_seq; |
| 1874 | } |
| 1875 | |
| 1876 | pkt_lost = expected_pkt - stats->period_pkt_count; |
| 1877 | stats->cum_lost=stats->cum_lost+pkt_lost; |
| 1878 | if (expected_pkt > 0 && pkt_lost > 0) { |
| 1879 | rtcp_report_block->fraction = (uint8_t) (pkt_lost * 256 / expected_pkt); |
| 1880 | } else { |
| 1881 | rtcp_report_block->fraction = 0; |
| 1882 | } |
| 1883 | #if SWITCH_BYTE_ORDER1234 != __BIG_ENDIAN4321 |
| 1884 | /* Reversing byte order for 24bits */ |
| 1885 | rtcp_report_block->lost = (((stats->cum_lost&0x0000FF)<<16) | ((stats->cum_lost&0x00FF00)) | ((stats->cum_lost&0xFF0000)>>16)); |
| 1886 | #endif |
| 1887 | |
| 1888 | #ifdef DEBUG_RTCP |
| 1889 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1889, (const char*)(session), SWITCH_LOG_DEBUG, "rtcp_generate_sr: stats_ssrc[%u] received[%d] expected[%d] cum[%d]lost[%d|%d/256]pkt last_seq[%d]cyc[%d] last_rpt_seq[%d]cyc[%d] ssrc[%d]\n", |
| 1890 | ntohl(rtp_session->recv_msg.header.ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ssrc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })), stats->period_pkt_count, expected_pkt, |
| 1891 | stats->cum_lost, pkt_lost, rtcp_report_block->fraction, stats->high_ext_seq_recv&0x0000ffff, |
| 1892 | stats->cycle, stats->last_rpt_ext_seq&0x0000ffff, stats->last_rpt_cycle, rtp_session->stats.rtcp.peer_ssrc |
| 1893 | ); |
| 1894 | #endif |
| 1895 | rtcp_report_block->highest_sequence_number_received = htonl(stats->high_ext_seq_recv)(__extension__ ({ unsigned int __v, __x = (stats->high_ext_seq_recv ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 1896 | |
| 1897 | /* Jitter */ |
| 1898 | rtcp_report_block->jitter = htonl((uint32_t)stats->inter_jitter)(__extension__ ({ unsigned int __v, __x = ((uint32_t)stats-> inter_jitter); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 1899 | |
| 1900 | /* Delay since Last Sender Report (DLSR) : 32bits, 1/65536 seconds */ |
| 1901 | lsr_now = (uint32_t)(ntp_usec*0.065536) | (ntp_sec&0x0000ffff)<<16; /* 0.065536 is used for convertion from useconds to fraction of 65536 (x65536/1000000) */ |
| 1902 | |
| 1903 | if (stats->last_recv_lsr_local) { |
| 1904 | dlsr = lsr_now - stats->last_recv_lsr_local; |
| 1905 | } else { |
| 1906 | dlsr = 0; |
| 1907 | } |
| 1908 | rtcp_report_block->lsr = stats->last_recv_lsr_peer; |
| 1909 | rtcp_report_block->dlsr = htonl(dlsr)(__extension__ ({ unsigned int __v, __x = (dlsr); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 1910 | rtcp_report_block->ssrc = htonl(rtp_session->stats.rtcp.peer_ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->stats .rtcp.peer_ssrc); if (__builtin_constant_p (__x)) __v = ((((__x ) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 1911 | stats->rtcp_rtp_count++; |
| 1912 | } |
| 1913 | |
| 1914 | static void rtcp_stats_init(switch_rtp_t *rtp_session) |
| 1915 | { |
| 1916 | switch_rtcp_numbers_t * stats = &rtp_session->stats.rtcp; |
| 1917 | srtp_hdr_t * hdr = &rtp_session->recv_msg.header; |
| 1918 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 1919 | stats->ssrc = ntohl(hdr->ssrc)(__extension__ ({ unsigned int __v, __x = (hdr->ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 1920 | stats->last_rpt_ts = rtp_session->timer.samplecount; |
| 1921 | stats->init = 1; |
| 1922 | stats->last_rpt_ext_seq = 0; |
| 1923 | stats->last_rpt_cycle = 0; |
| 1924 | stats->last_pkt_tsdiff = 0; |
| 1925 | stats->inter_jitter = 0; |
| 1926 | stats->cycle = 0; |
| 1927 | stats->high_ext_seq_recv = ntohs((uint16_t)hdr->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t)hdr->seq); if (__builtin_constant_p (__x) ) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1928 | stats->base_seq = ntohs((uint16_t)hdr->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t)hdr->seq); if (__builtin_constant_p (__x) ) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1929 | stats->bad_seq = (1<<16) + 1; /* Make sure we wont missmatch 2 consecutive packets, so seq == bad_seq is false */ |
| 1930 | stats->cum_lost = 0; |
| 1931 | stats->period_pkt_count = 0; |
| 1932 | stats->pkt_count = 0; |
| 1933 | stats->rtcp_rtp_count = 0; |
| 1934 | |
| 1935 | if (!rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 1936 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1936, (const char*)(session), SWITCH_LOG_DEBUG, "rtcp_stats_init: rtcp disabled\n"); |
| 1937 | } else if (!rtp_session->rtcp_sock_output) { |
| 1938 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1938, (const char*)(session), SWITCH_LOG_WARNING, "rtcp_stats_init: no rtcp socket\n"); |
| 1939 | } else if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU]) { |
| 1940 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1940, (const char*)(session), SWITCH_LOG_DEBUG, "rtcp_stats_init: rtcp passthru\n"); |
| 1941 | } else { |
| 1942 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1942, (const char*)(session), SWITCH_LOG_DEBUG, "rtcp_stats_init: ssrc[%d] base_seq[%d]\n", stats->ssrc, stats->base_seq); |
| 1943 | } |
| 1944 | } |
| 1945 | |
| 1946 | static int rtcp_stats(switch_rtp_t *rtp_session) |
| 1947 | { |
| 1948 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 1949 | srtp_hdr_t * hdr = &rtp_session->recv_msg.header; |
| 1950 | switch_rtcp_numbers_t * stats = &rtp_session->stats.rtcp; |
| 1951 | uint32_t packet_spacing_diff, pkt_tsdiff, pkt_extended_seq; |
| 1952 | uint16_t pkt_seq, seq_diff, max_seq; |
| 1953 | const int MAX_DROPOUT = 3000; |
| 1954 | const int MAX_MISORDER = 100; |
| 1955 | const int RTP_SEQ_MOD = (1<<16); |
| 1956 | |
| 1957 | if(!rtp_session->rtcp_sock_output || !rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] || rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] || !rtp_session->rtcp_interval) |
| 1958 | return 0; /* do not process RTCP in current state */ |
| 1959 | |
| 1960 | pkt_seq = (uint16_t) ntohs((uint16_t) rtp_session->recv_msg.header.seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 1961 | |
| 1962 | /* Detect sequence number cycle change */ |
| 1963 | max_seq = stats->high_ext_seq_recv&0x0000ffff; |
| 1964 | seq_diff = pkt_seq - max_seq; |
| 1965 | |
| 1966 | if (seq_diff < MAX_DROPOUT) { /* in order, with permissible gap */ |
| 1967 | if (pkt_seq < max_seq) { |
| 1968 | stats->cycle++; |
| 1969 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1969, (const char*)(session), SWITCH_LOG_NOTICE, "rtcp_stats:[cycle change] pkt_seq[%d]cycle[%d] max_seq[%d] stats_ssrc[%u] local_ts[%u]\n", |
| 1970 | pkt_seq, stats->cycle, max_seq, stats->ssrc, rtp_session->timer.samplecount); |
| 1971 | } |
| 1972 | pkt_extended_seq = stats->cycle << 16 | pkt_seq; /* getting the extended packet extended sequence ID */ |
| 1973 | if (pkt_extended_seq > stats->high_ext_seq_recv) { |
| 1974 | stats->high_ext_seq_recv = pkt_extended_seq; |
| 1975 | } |
| 1976 | } |
| 1977 | else if (seq_diff <= (RTP_SEQ_MOD - MAX_MISORDER)) { /* the sequence number made a very large jump */ |
| 1978 | if (pkt_seq == stats->bad_seq) { |
| 1979 | rtcp_stats_init(rtp_session); |
| 1980 | } else { |
| 1981 | stats->bad_seq = (pkt_seq + 1) & (RTP_SEQ_MOD-1); |
| 1982 | } |
| 1983 | return 0; /* no stats, packet is out of sync and will be accounted as lost */ |
| 1984 | } else { |
| 1985 | /* duplicate or reordered packet */ |
| 1986 | } |
| 1987 | |
| 1988 | /* Verify that we are on the same stream source (we do not support multiple sources) */ |
| 1989 | if (ntohl(hdr->ssrc)(__extension__ ({ unsigned int __v, __x = (hdr->ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })) != stats->ssrc || !stats->init) { |
| 1990 | rtcp_stats_init(rtp_session); |
| 1991 | } |
| 1992 | |
| 1993 | stats->period_pkt_count++; |
| 1994 | stats->pkt_count++; |
| 1995 | #ifdef DEBUG_RTCP |
| 1996 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 1996, (const char*)(session), SWITCH_LOG_DEBUG10, "rtcp_stats: period_pkt_count[%d]last_seq[%d]cycle[%d]stats_ssrc[%u]local_ts[%u]\n", |
| 1997 | stats->period_pkt_count, pkt_seq, stats->cycle, stats->ssrc, rtp_session->timer.samplecount); |
| 1998 | #endif |
| 1999 | /* Interarrival jitter calculation */ |
| 2000 | pkt_tsdiff = rtp_session->timer.samplecount - ntohl(hdr->ts)(__extension__ ({ unsigned int __v, __x = (hdr->ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })) ; /* relative transit times for this packet */ |
| 2001 | if (stats->pkt_count < 2) { /* Can not compute Jitter with only one packet */ |
| 2002 | stats->last_pkt_tsdiff = pkt_tsdiff; |
| 2003 | } else { |
| 2004 | packet_spacing_diff = pkt_tsdiff - stats->last_pkt_tsdiff; /* Jitter : difference of relative transit times for the two packets */ |
| 2005 | stats->last_pkt_tsdiff = pkt_tsdiff; |
| 2006 | /* Interarrival jitter estimation, "J(i) = J(i-1) + ( |D(i-1,i)| - J(i-1) )/16" */ |
| 2007 | stats->inter_jitter = (stats->inter_jitter + (((double)abs(packet_spacing_diff) - stats->inter_jitter) /16.)); |
| 2008 | } |
| 2009 | |
| 2010 | #ifdef DEBUG_RTCP |
| 2011 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2011, (const char*)(session), SWITCH_LOG_DEBUG10, "rtcp_stats: pkt_ts[%d]local_ts[%d]diff[%d]pkt_spacing[%d]inter_jitter[%f]seq[%d]stats_ssrc[%d]", |
| 2012 | ntohl(hdr->ts)(__extension__ ({ unsigned int __v, __x = (hdr->ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })), rtp_session->timer.samplecount, pkt_tsdiff, packet_spacing_diff, stats->inter_jitter, ntohs(hdr->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (hdr->seq); if (__builtin_constant_p (__x)) __v = (( unsigned short int) ((((__x) >> 8) & 0xff) | (((__x ) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), stats->ssrc); |
| 2013 | #endif |
| 2014 | return 1; |
| 2015 | } |
| 2016 | |
| 2017 | |
| 2018 | static int check_rtcp_and_ice(switch_rtp_t *rtp_session) |
| 2019 | { |
| 2020 | int ret = 0; |
| 2021 | int rtcp_ok = 1; |
| 2022 | switch_time_t now = switch_micro_time_now(); |
| 2023 | |
| 2024 | if (rtp_session->fir_countdown) { |
| 2025 | //if (rtp_session->fir_countdown == FIR_COUNTDOWN) { |
| 2026 | // do_flush(rtp_session, SWITCH_TRUE); |
| 2027 | //} |
| 2028 | |
| 2029 | if (rtp_session->fir_countdown == FIR_COUNTDOWN50 || (rtp_session->fir_countdown == FIR_COUNTDOWN50 / 2) || rtp_session->fir_countdown == 1) { |
| 2030 | if (rtp_session->flags[SWITCH_RTP_FLAG_PLI]) { |
| 2031 | send_pli(rtp_session); |
| 2032 | } else { |
| 2033 | send_fir(rtp_session); |
| 2034 | } |
| 2035 | } |
| 2036 | |
| 2037 | rtp_session->fir_countdown--; |
| 2038 | } |
| 2039 | |
| 2040 | if (rtp_session->flags[SWITCH_RTP_FLAG_AUTO_CNG] && rtp_session->send_msg.header.ts && rtp_session->cng_pt && |
| 2041 | rtp_session->timer.samplecount >= (rtp_session->last_write_samplecount + (rtp_session->samples_per_interval * 60))) { |
| 2042 | uint8_t data[10] = { 0 }; |
| 2043 | switch_frame_flag_t frame_flags = SFF_NONE; |
| 2044 | data[0] = 65; |
| 2045 | rtp_session->cn++; |
| 2046 | |
| 2047 | get_next_write_ts(rtp_session, 0); |
| 2048 | rtp_session->send_msg.header.ts = htonl(rtp_session->ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->ts ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 2049 | |
| 2050 | switch_rtp_write_manual(rtp_session, (void *) data, 2, 0, rtp_session->cng_pt, ntohl(rtp_session->send_msg.header.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->send_msg .header.ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })), &frame_flags); |
| 2051 | |
| 2052 | if (switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER)) { |
| 2053 | rtp_session->last_write_samplecount = rtp_session->timer.samplecount; |
| 2054 | } |
| 2055 | } |
| 2056 | |
| 2057 | if (rtp_session->rtcp_interval && rtp_session->next_rtcp_send > now) { |
| 2058 | rtcp_ok = 0; |
| 2059 | } else { |
| 2060 | rtp_session->next_rtcp_send = now + (rtp_session->rtcp_interval * 1000); |
| 2061 | } |
| 2062 | |
| 2063 | if (rtcp_ok && rtp_session->rtcp_ice.ice_user && !rtp_session->rtcp_ice.rready) { |
| 2064 | rtcp_ok = 0; |
| 2065 | } |
| 2066 | |
| 2067 | if (rtp_session->rtcp_sock_output && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && |
| 2068 | !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] && |
| 2069 | (rtp_session->timer.samplecount - rtp_session->stats.rtcp.last_rpt_ts >= rtp_session->samples_per_second * rtp_session->rtcp_send_rate) ) { |
| 2070 | |
| 2071 | switch_rtcp_numbers_t * stats = &rtp_session->stats.rtcp; |
| 2072 | struct switch_rtcp_receiver_report *rr; |
| 2073 | struct switch_rtcp_sender_report *sr; |
| 2074 | struct switch_rtcp_report_block *rtcp_report_block; |
| 2075 | |
| 2076 | switch_size_t rtcp_bytes = sizeof(struct switch_rtcp_hdr_s)+sizeof(uint32_t); /* add size of the packet header and the ssrc */ |
| 2077 | |
| 2078 | rtp_session->rtcp_send_msg.header.version = 2; |
| 2079 | rtp_session->rtcp_send_msg.header.p = 0; |
| 2080 | rtp_session->rtcp_send_msg.header.count = 1; |
| 2081 | |
| 2082 | if (!rtp_session->stats.outbound.packet_count) { |
| 2083 | rtp_session->rtcp_send_msg.header.type = 201; /* Receiver report */ |
| 2084 | rr=(struct switch_rtcp_receiver_report*) rtp_session->rtcp_send_msg.body; |
| 2085 | rr->ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 2086 | rtcp_report_block = &rr->report_block; |
| 2087 | rtcp_bytes += sizeof(struct switch_rtcp_report_block); |
| 2088 | } else { |
| 2089 | struct switch_rtcp_sender_info *rtcp_sender_info; |
| 2090 | rtp_session->rtcp_send_msg.header.type = 200; /* Sender report */ |
| 2091 | sr = (struct switch_rtcp_sender_report*) rtp_session->rtcp_send_msg.body; |
| 2092 | sr->ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 2093 | rtcp_sender_info = &sr->sender_info; |
| 2094 | rtcp_generate_sender_info(rtp_session, rtcp_sender_info); |
| 2095 | rtcp_report_block = &sr->report_block; |
| 2096 | rtcp_bytes += sizeof(struct switch_rtcp_sender_info) + sizeof(struct switch_rtcp_report_block); |
| 2097 | } |
| 2098 | rtcp_generate_report_block(rtp_session, rtcp_report_block); |
| 2099 | |
| 2100 | rtp_session->rtcp_send_msg.header.length = htons((uint16_t)(rtcp_bytes / 4) - 1)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t)(rtcp_bytes / 4) - 1); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 2101 | |
| 2102 | /* Prepare next report */ |
| 2103 | stats->last_rpt_cycle = stats->cycle; |
| 2104 | stats->last_rpt_ext_seq = stats->high_ext_seq_recv; |
| 2105 | stats->last_rpt_ts = rtp_session->timer.samplecount; |
| 2106 | stats->period_pkt_count = 0; |
| 2107 | rtp_session->rtcp_send_msg.header.length = htons((u_short)(rtcp_bytes / 4) - 1)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((u_short)(rtcp_bytes / 4) - 1); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 2108 | |
| 2109 | |
| 2110 | #ifdef ENABLE_SRTP1 |
| 2111 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 2112 | int sbytes = (int) rtcp_bytes; |
| 2113 | int stat = srtp_protect_rtcp(rtp_session->send_ctx[rtp_session->srtp_idx_rtcp], &rtp_session->rtcp_send_msg.header, &sbytes); |
| 2114 | |
| 2115 | if (stat) { |
| 2116 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2116, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP RTCP protection failed with code %d\n", stat); |
| 2117 | goto end; |
| 2118 | } else { |
| 2119 | rtcp_bytes = sbytes; |
| 2120 | } |
| 2121 | |
| 2122 | } |
| 2123 | #endif |
| 2124 | |
| 2125 | #ifdef ENABLE_ZRTP |
| 2126 | /* ZRTP Send */ |
| 2127 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 2128 | unsigned int sbytes = (int) rtcp_bytes; |
| 2129 | zrtp_status_t stat = zrtp_status_fail; |
| 2130 | |
| 2131 | stat = zrtp_process_rtcp(rtp_session->zrtp_stream, (void *) &rtp_session->rtcp_send_msg, &sbytes); |
| 2132 | |
| 2133 | switch (stat) { |
| 2134 | case zrtp_status_ok: |
| 2135 | break; |
| 2136 | case zrtp_status_drop: |
| 2137 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 2137, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 2138 | ret = (int)rtcp_bytes; |
| 2139 | goto end; |
| 2140 | break; |
| 2141 | case zrtp_status_fail: |
| 2142 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 2142, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 2143 | break; |
| 2144 | default: |
| 2145 | break; |
| 2146 | } |
| 2147 | |
| 2148 | rtcp_bytes = sbytes; |
| 2149 | } |
| 2150 | #endif |
| 2151 | |
| 2152 | #ifdef DEBUG_EXTRA |
| 2153 | { |
| 2154 | const char *old_host; |
| 2155 | char bufb[30]; |
| 2156 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->rtcp_remote_addr); |
| 2157 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2157, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "%s SEND %s RTCP %s:%d %ld\n", |
| 2158 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 2159 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", |
| 2160 | old_host, |
| 2161 | switch_sockaddr_get_port(rtp_session->rtcp_remote_addr), |
| 2162 | rtcp_bytes); |
| 2163 | } |
| 2164 | #endif |
| 2165 | if (switch_socket_sendto(rtp_session->rtcp_sock_output, rtp_session->rtcp_remote_addr, 0, (void *)&rtp_session->rtcp_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) { |
| 2166 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2166, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG,"RTCP packet not written\n"); |
| 2167 | } else { |
| 2168 | rtp_session->stats.inbound.period_packet_count = 0; |
| 2169 | } |
| 2170 | } |
| 2171 | |
| 2172 | if (rtp_session->ice.ice_user) { |
| 2173 | if (ice_out(rtp_session, &rtp_session->ice) == SWITCH_STATUS_GENERR) { |
| 2174 | ret = -1; |
| 2175 | goto end; |
| 2176 | } |
| 2177 | } |
| 2178 | |
| 2179 | if (!rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 2180 | if (rtp_session->rtcp_ice.ice_user) { |
| 2181 | if (ice_out(rtp_session, &rtp_session->rtcp_ice) == SWITCH_STATUS_GENERR) { |
| 2182 | ret = -1; |
| 2183 | goto end; |
| 2184 | } |
| 2185 | } |
| 2186 | } |
| 2187 | |
| 2188 | end: |
| 2189 | |
| 2190 | return ret; |
| 2191 | } |
| 2192 | |
| 2193 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_ping(switch_rtp_t *rtp_session) |
| 2194 | { |
| 2195 | check_rtcp_and_ice(rtp_session); |
| 2196 | } |
| 2197 | |
| 2198 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_get_random(void *buf, uint32_t len) |
| 2199 | { |
| 2200 | #ifdef ENABLE_SRTP1 |
| 2201 | crypto_get_random(buf, len); |
| 2202 | #else |
| 2203 | switch_stun_random_string(buf, len, NULL((void*)0)); |
| 2204 | #endif |
| 2205 | } |
| 2206 | |
| 2207 | |
| 2208 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_shutdown(void) |
| 2209 | { |
| 2210 | switch_core_port_allocator_t *alloc = NULL((void*)0); |
| 2211 | switch_hash_index_t *hi; |
| 2212 | const void *var; |
| 2213 | void *val; |
| 2214 | |
| 2215 | if (!global_init) { |
| 2216 | return; |
| 2217 | } |
| 2218 | |
| 2219 | switch_mutex_lock(port_lock); |
| 2220 | |
| 2221 | for (hi = switch_core_hash_first(alloc_hash)switch_core_hash_first_iter(alloc_hash, ((void*)0)); hi; hi = switch_core_hash_next(&hi)) { |
| 2222 | switch_core_hash_this(hi, &var, NULL((void*)0), &val); |
| 2223 | if ((alloc = (switch_core_port_allocator_t *) val)) { |
| 2224 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 2224, ((void*)0), SWITCH_LOG_DEBUG, "Destroy port allocator for %s\n", (char *) var); |
| 2225 | switch_core_port_allocator_destroy(&alloc); |
| 2226 | } |
| 2227 | } |
| 2228 | |
| 2229 | switch_core_hash_destroy(&alloc_hash); |
| 2230 | switch_mutex_unlock(port_lock); |
| 2231 | |
| 2232 | #ifdef ENABLE_ZRTP |
| 2233 | if (zrtp_on) { |
| 2234 | zrtp_status_t status = zrtp_status_ok; |
| 2235 | |
| 2236 | status = zrtp_def_cache_store(zrtp_global); |
| 2237 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 2237, ((void*)0), SWITCH_LOG_DEBUG, "Saving ZRTP cache: %s\n", zrtp_status_ok == status ? "OK" : "FAIL"); |
| 2238 | zrtp_down(zrtp_global); |
| 2239 | } |
| 2240 | #endif |
| 2241 | #ifdef ENABLE_SRTP1 |
| 2242 | crypto_kernel_shutdown(); |
| 2243 | #endif |
| 2244 | |
| 2245 | } |
| 2246 | |
| 2247 | SWITCH_DECLARE(switch_port_t)__attribute__((visibility("default"))) switch_port_t switch_rtp_set_start_port(switch_port_t port) |
| 2248 | { |
| 2249 | if (port) { |
| 2250 | if (port_lock) { |
| 2251 | switch_mutex_lock(port_lock); |
| 2252 | } |
| 2253 | START_PORT = port; |
| 2254 | if (port_lock) { |
| 2255 | switch_mutex_unlock(port_lock); |
| 2256 | } |
| 2257 | } |
| 2258 | return START_PORT; |
| 2259 | } |
| 2260 | |
| 2261 | SWITCH_DECLARE(switch_port_t)__attribute__((visibility("default"))) switch_port_t switch_rtp_set_end_port(switch_port_t port) |
| 2262 | { |
| 2263 | if (port) { |
| 2264 | if (port_lock) { |
| 2265 | switch_mutex_lock(port_lock); |
| 2266 | } |
| 2267 | END_PORT = port; |
| 2268 | if (port_lock) { |
| 2269 | switch_mutex_unlock(port_lock); |
| 2270 | } |
| 2271 | } |
| 2272 | return END_PORT; |
| 2273 | } |
| 2274 | |
| 2275 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_release_port(const char *ip, switch_port_t port) |
| 2276 | { |
| 2277 | switch_core_port_allocator_t *alloc = NULL((void*)0); |
| 2278 | |
| 2279 | if (!ip || !port) { |
| 2280 | return; |
| 2281 | } |
| 2282 | |
| 2283 | switch_mutex_lock(port_lock); |
| 2284 | if ((alloc = switch_core_hash_find(alloc_hash, ip))) { |
| 2285 | switch_core_port_allocator_free_port(alloc, port); |
| 2286 | } |
| 2287 | switch_mutex_unlock(port_lock); |
| 2288 | |
| 2289 | } |
| 2290 | |
| 2291 | SWITCH_DECLARE(switch_port_t)__attribute__((visibility("default"))) switch_port_t switch_rtp_request_port(const char *ip) |
| 2292 | { |
| 2293 | switch_port_t port = 0; |
| 2294 | switch_core_port_allocator_t *alloc = NULL((void*)0); |
| 2295 | |
| 2296 | switch_mutex_lock(port_lock); |
| 2297 | alloc = switch_core_hash_find(alloc_hash, ip); |
| 2298 | if (!alloc) { |
| 2299 | if (switch_core_port_allocator_new(ip, START_PORT, END_PORT, SPF_EVEN, &alloc) != SWITCH_STATUS_SUCCESS) { |
| 2300 | abort(); |
| 2301 | } |
| 2302 | |
| 2303 | switch_core_hash_insert(alloc_hash, ip, alloc)switch_core_hash_insert_destructor(alloc_hash, ip, alloc, ((void *)0)); |
| 2304 | } |
| 2305 | |
| 2306 | if (switch_core_port_allocator_request_port(alloc, &port) != SWITCH_STATUS_SUCCESS) { |
| 2307 | port = 0; |
| 2308 | } |
| 2309 | |
| 2310 | switch_mutex_unlock(port_lock); |
| 2311 | return port; |
| 2312 | } |
| 2313 | |
| 2314 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_payload_map(switch_rtp_t *rtp_session, payload_map_t **pmap) |
| 2315 | { |
| 2316 | |
| 2317 | if (rtp_session) { |
| 2318 | switch_mutex_lock(rtp_session->flag_mutex); |
| 2319 | rtp_session->pmaps = pmap; |
| 2320 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 2321 | return SWITCH_STATUS_SUCCESS; |
| 2322 | } |
| 2323 | |
| 2324 | return SWITCH_STATUS_FALSE; |
| 2325 | } |
| 2326 | |
| 2327 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_intentional_bugs(switch_rtp_t *rtp_session, switch_rtp_bug_flag_t bugs) |
| 2328 | { |
| 2329 | rtp_session->rtp_bugs = bugs; |
| 2330 | |
| 2331 | if ((rtp_session->rtp_bugs & RTP_BUG_START_SEQ_AT_ZERO)) { |
| 2332 | rtp_session->seq = 0; |
| 2333 | } |
| 2334 | |
| 2335 | } |
| 2336 | |
| 2337 | |
| 2338 | static switch_status_t enable_remote_rtcp_socket(switch_rtp_t *rtp_session, const char **err) { |
| 2339 | |
| 2340 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 2341 | |
| 2342 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 2343 | |
| 2344 | if (switch_sockaddr_info_get(&rtp_session->rtcp_remote_addr, rtp_session->eff_remote_host_str, SWITCH_UNSPEC0, |
| 2345 | rtp_session->remote_rtcp_port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || !rtp_session->rtcp_remote_addr) { |
| 2346 | *err = "RTCP Remote Address Error!"; |
| 2347 | return SWITCH_STATUS_FALSE; |
| 2348 | } else { |
| 2349 | const char *host; |
| 2350 | char bufa[30]; |
| 2351 | |
| 2352 | host = switch_get_addr(bufa, sizeof(bufa), rtp_session->rtcp_remote_addr); |
| 2353 | |
| 2354 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2354, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, |
| 2355 | "Setting RTCP remote addr to %s:%d\n", host, rtp_session->remote_rtcp_port); |
| 2356 | } |
| 2357 | |
| 2358 | if (rtp_session->rtcp_sock_input && switch_sockaddr_get_family(rtp_session->rtcp_remote_addr) == |
| 2359 | switch_sockaddr_get_family(rtp_session->rtcp_local_addr)) { |
| 2360 | rtp_session->rtcp_sock_output = rtp_session->rtcp_sock_input; |
| 2361 | } else { |
| 2362 | |
| 2363 | if (rtp_session->rtcp_sock_output && rtp_session->rtcp_sock_output != rtp_session->rtcp_sock_input) { |
| 2364 | switch_socket_close(rtp_session->rtcp_sock_output); |
| 2365 | } |
| 2366 | |
| 2367 | if ((status = switch_socket_create(&rtp_session->rtcp_sock_output, |
| 2368 | switch_sockaddr_get_family(rtp_session->rtcp_remote_addr), |
| 2369 | SOCK_DGRAMSOCK_DGRAM, 0, rtp_session->pool)) != SWITCH_STATUS_SUCCESS) { |
| 2370 | *err = "RTCP Socket Error!"; |
| 2371 | } |
| 2372 | } |
| 2373 | |
| 2374 | } else { |
| 2375 | *err = "RTCP NOT ACTIVE!"; |
| 2376 | } |
| 2377 | |
| 2378 | return status; |
| 2379 | |
| 2380 | } |
| 2381 | |
| 2382 | static switch_status_t enable_local_rtcp_socket(switch_rtp_t *rtp_session, const char **err) { |
| 2383 | |
| 2384 | const char *host = rtp_session->local_host_str; |
| 2385 | switch_port_t port = rtp_session->local_port; |
| 2386 | switch_socket_t *rtcp_new_sock = NULL((void*)0), *rtcp_old_sock = NULL((void*)0); |
| 2387 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 2388 | char bufa[30]; |
| 2389 | |
| 2390 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 2391 | if (switch_sockaddr_info_get(&rtp_session->rtcp_local_addr, host, SWITCH_UNSPEC0, port+1, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS) { |
| 2392 | *err = "RTCP Local Address Error!"; |
| 2393 | goto done; |
| 2394 | } |
| 2395 | |
| 2396 | if (switch_socket_create(&rtcp_new_sock, switch_sockaddr_get_family(rtp_session->rtcp_local_addr), SOCK_DGRAMSOCK_DGRAM, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS) { |
| 2397 | *err = "RTCP Socket Error!"; |
| 2398 | goto done; |
| 2399 | } |
| 2400 | |
| 2401 | if (switch_socket_opt_set(rtcp_new_sock, SWITCH_SO_REUSEADDR16, 1) != SWITCH_STATUS_SUCCESS) { |
| 2402 | *err = "RTCP Socket Error!"; |
| 2403 | goto done; |
| 2404 | } |
| 2405 | |
| 2406 | if (switch_socket_bind(rtcp_new_sock, rtp_session->rtcp_local_addr) != SWITCH_STATUS_SUCCESS) { |
| 2407 | *err = "RTCP Bind Error!"; |
| 2408 | goto done; |
| 2409 | } |
| 2410 | |
| 2411 | if (switch_sockaddr_info_get(&rtp_session->rtcp_from_addr, switch_get_addr(bufa, sizeof(bufa), rtp_session->from_addr), |
| 2412 | SWITCH_UNSPEC0, switch_sockaddr_get_port(rtp_session->from_addr) + 1, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS) { |
| 2413 | *err = "RTCP From Address Error!"; |
| 2414 | goto done; |
| 2415 | } |
| 2416 | |
| 2417 | rtcp_old_sock = rtp_session->rtcp_sock_input; |
| 2418 | rtp_session->rtcp_sock_input = rtcp_new_sock; |
| 2419 | rtcp_new_sock = NULL((void*)0); |
| 2420 | |
| 2421 | switch_socket_create_pollset(&rtp_session->rtcp_read_pollfd, rtp_session->rtcp_sock_input, SWITCH_POLLIN0x001 | SWITCH_POLLERR0x010, rtp_session->pool); |
| 2422 | |
| 2423 | done: |
| 2424 | |
| 2425 | if (*err) { |
| 2426 | |
| 2427 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2427, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error allocating rtcp [%s]\n", *err); |
| 2428 | status = SWITCH_STATUS_FALSE; |
| 2429 | } |
| 2430 | |
| 2431 | if (rtcp_new_sock) { |
| 2432 | switch_socket_close(rtcp_new_sock); |
| 2433 | } |
| 2434 | |
| 2435 | if (rtcp_old_sock) { |
| 2436 | switch_socket_close(rtcp_old_sock); |
| 2437 | } |
| 2438 | } else { |
| 2439 | status = SWITCH_STATUS_FALSE; |
| 2440 | } |
| 2441 | |
| 2442 | return status; |
| 2443 | } |
| 2444 | |
| 2445 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_local_address(switch_rtp_t *rtp_session, const char *host, switch_port_t port, const char **err) |
| 2446 | { |
| 2447 | switch_socket_t *new_sock = NULL((void*)0), *old_sock = NULL((void*)0); |
| 2448 | switch_status_t status = SWITCH_STATUS_FALSE; |
| 2449 | int j = 0; |
| 2450 | #ifndef WIN32 |
| 2451 | char o[5] = "TEST", i[5] = ""; |
| 2452 | switch_size_t len, ilen = 0; |
| 2453 | int x; |
| 2454 | #endif |
| 2455 | |
| 2456 | if (rtp_session->ready != 1) { |
| 2457 | if (!switch_rtp_ready(rtp_session)) { |
| 2458 | return SWITCH_STATUS_FALSE; |
| 2459 | } |
| 2460 | |
| 2461 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 2462 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 2463 | |
| 2464 | if (!switch_rtp_ready(rtp_session)) { |
| 2465 | goto done; |
| 2466 | } |
| 2467 | } |
| 2468 | |
| 2469 | |
| 2470 | *err = NULL((void*)0); |
| 2471 | |
| 2472 | if (zstr(host)_zstr(host) || !port) { |
| 2473 | *err = "Address Error"; |
| 2474 | goto done; |
| 2475 | } |
| 2476 | |
| 2477 | |
| 2478 | rtp_session->local_host_str = switch_core_strdup(rtp_session->pool, host)switch_core_perform_strdup(rtp_session->pool, host, "src/switch_rtp.c" , (const char *)__func__, 2478); |
| 2479 | rtp_session->local_port = port; |
| 2480 | |
| 2481 | |
| 2482 | if (switch_sockaddr_info_get(&rtp_session->local_addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS) { |
| 2483 | *err = "Local Address Error!"; |
| 2484 | goto done; |
| 2485 | } |
| 2486 | |
| 2487 | |
| 2488 | if (rtp_session->sock_input) { |
| 2489 | switch_rtp_kill_socket(rtp_session); |
| 2490 | } |
| 2491 | |
| 2492 | if (switch_socket_create(&new_sock, switch_sockaddr_get_family(rtp_session->local_addr), SOCK_DGRAMSOCK_DGRAM, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS) { |
| 2493 | *err = "Socket Error!"; |
| 2494 | goto done; |
| 2495 | } |
| 2496 | |
| 2497 | if (switch_socket_opt_set(new_sock, SWITCH_SO_REUSEADDR16, 1) != SWITCH_STATUS_SUCCESS) { |
| 2498 | *err = "Socket Error!"; |
| 2499 | goto done; |
| 2500 | } |
| 2501 | |
| 2502 | if (switch_socket_bind(new_sock, rtp_session->local_addr) != SWITCH_STATUS_SUCCESS) { |
| 2503 | char *em = switch_core_sprintf(rtp_session->pool, "Bind Error! %s:%d", host, port); |
| 2504 | *err = em; |
| 2505 | goto done; |
| 2506 | } |
| 2507 | |
| 2508 | |
| 2509 | if ((j = atoi(host)) && j > 223 && j < 240) { /* mcast */ |
| 2510 | if (switch_mcast_interface(new_sock, rtp_session->local_addr) != SWITCH_STATUS_SUCCESS) { |
| 2511 | *err = "Multicast Socket interface Error"; |
| 2512 | goto done; |
| 2513 | } |
| 2514 | |
| 2515 | if (switch_mcast_join(new_sock, rtp_session->local_addr, NULL((void*)0), NULL((void*)0)) != SWITCH_STATUS_SUCCESS) { |
| 2516 | *err = "Multicast Error"; |
| 2517 | goto done; |
| 2518 | } |
| 2519 | |
| 2520 | if (rtp_session->session) { |
| 2521 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 2522 | const char *var; |
| 2523 | |
| 2524 | if ((var = switch_channel_get_variable(channel, "multicast_ttl")switch_channel_get_variable_dup(channel, "multicast_ttl", SWITCH_TRUE , -1))) { |
| 2525 | int ttl = atoi(var); |
| 2526 | |
| 2527 | if (ttl > 0 && ttl < 256) { |
| 2528 | if (switch_mcast_hops(new_sock, (uint8_t) ttl) != SWITCH_STATUS_SUCCESS) { |
| 2529 | *err = "Mutlicast TTL set failed"; |
| 2530 | goto done; |
| 2531 | } |
| 2532 | |
| 2533 | } |
| 2534 | } |
| 2535 | |
| 2536 | } |
| 2537 | |
| 2538 | } |
| 2539 | |
| 2540 | |
| 2541 | |
| 2542 | #ifndef WIN32 |
| 2543 | len = sizeof(i); |
| 2544 | switch_socket_opt_set(new_sock, SWITCH_SO_NONBLOCK8, TRUE(!0)); |
| 2545 | |
| 2546 | switch_socket_sendto(new_sock, rtp_session->local_addr, 0, (void *) o, &len); |
| 2547 | |
| 2548 | x = 0; |
| 2549 | while (!ilen) { |
| 2550 | switch_status_t status; |
| 2551 | ilen = len; |
| 2552 | status = switch_socket_recvfrom(rtp_session->from_addr, new_sock, 0, (void *) i, &ilen); |
| 2553 | |
| 2554 | if (status != SWITCH_STATUS_SUCCESS && status != SWITCH_STATUS_BREAK) { |
| 2555 | break; |
| 2556 | } |
| 2557 | |
| 2558 | if (++x > 1000) { |
| 2559 | break; |
| 2560 | } |
| 2561 | switch_cond_next(); |
| 2562 | } |
| 2563 | switch_socket_opt_set(new_sock, SWITCH_SO_NONBLOCK8, FALSE0); |
| 2564 | |
| 2565 | #endif |
| 2566 | |
| 2567 | old_sock = rtp_session->sock_input; |
| 2568 | rtp_session->sock_input = new_sock; |
| 2569 | new_sock = NULL((void*)0); |
| 2570 | |
| 2571 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] || rtp_session->flags[SWITCH_RTP_FLAG_NOBLOCK] || rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 2572 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, TRUE(!0)); |
| 2573 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 2574 | } |
| 2575 | |
| 2576 | switch_socket_create_pollset(&rtp_session->read_pollfd, rtp_session->sock_input, SWITCH_POLLIN0x001 | SWITCH_POLLERR0x010, rtp_session->pool); |
| 2577 | |
| 2578 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 2579 | if ((status = enable_local_rtcp_socket(rtp_session, err)) == SWITCH_STATUS_SUCCESS) { |
| 2580 | *err = "Success"; |
| 2581 | } |
| 2582 | } else { |
| 2583 | status = SWITCH_STATUS_SUCCESS; |
| 2584 | *err = "Success"; |
| 2585 | } |
| 2586 | |
| 2587 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_IO); |
| 2588 | |
| 2589 | done: |
| 2590 | |
| 2591 | if (new_sock) { |
| 2592 | switch_socket_close(new_sock); |
| 2593 | } |
| 2594 | |
| 2595 | if (old_sock) { |
| 2596 | switch_socket_close(old_sock); |
| 2597 | } |
| 2598 | |
| 2599 | |
| 2600 | if (rtp_session->ready != 1) { |
| 2601 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 2602 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 2603 | } |
| 2604 | |
| 2605 | return status; |
| 2606 | } |
| 2607 | |
| 2608 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_max_missed_packets(switch_rtp_t *rtp_session, uint32_t max) |
| 2609 | { |
| 2610 | if (rtp_session->missed_count >= max) { |
| 2611 | |
| 2612 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2612, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, |
| 2613 | "new max missed packets(%d->%d) greater than current missed packets(%d). RTP will timeout.\n", |
| 2614 | rtp_session->missed_count, max, rtp_session->missed_count); |
| 2615 | } |
| 2616 | |
| 2617 | rtp_session->max_missed_packets = max; |
| 2618 | } |
| 2619 | |
| 2620 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_reset(switch_rtp_t *rtp_session) |
| 2621 | { |
| 2622 | if (!rtp_session) { |
| 2623 | return; |
| 2624 | } |
| 2625 | |
| 2626 | rtp_session->seq = (uint16_t) rand(); |
| 2627 | rtp_session->ts = 0; |
| 2628 | memset(&rtp_session->ts_norm, 0, sizeof(rtp_session->ts_norm)); |
| 2629 | |
| 2630 | } |
| 2631 | |
| 2632 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_reset_media_timer(switch_rtp_t *rtp_session) |
| 2633 | { |
| 2634 | rtp_session->missed_count = 0; |
| 2635 | } |
| 2636 | |
| 2637 | SWITCH_DECLARE(char *)__attribute__((visibility("default"))) char * switch_rtp_get_remote_host(switch_rtp_t *rtp_session) |
| 2638 | { |
| 2639 | return zstr(rtp_session->remote_host_str)_zstr(rtp_session->remote_host_str) ? "0.0.0.0" : rtp_session->remote_host_str; |
| 2640 | } |
| 2641 | |
| 2642 | SWITCH_DECLARE(switch_port_t)__attribute__((visibility("default"))) switch_port_t switch_rtp_get_remote_port(switch_rtp_t *rtp_session) |
| 2643 | { |
| 2644 | return rtp_session->remote_port; |
| 2645 | } |
| 2646 | |
| 2647 | static void ping_socket(switch_rtp_t *rtp_session) |
| 2648 | { |
| 2649 | uint32_t o = UINT_MAX(2147483647 *2U +1U); |
| 2650 | switch_size_t len = sizeof(o); |
| 2651 | switch_socket_sendto(rtp_session->sock_input, rtp_session->local_addr, 0, (void *) &o, &len); |
| 2652 | |
| 2653 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && rtp_session->rtcp_sock_input) { |
| 2654 | switch_socket_sendto(rtp_session->rtcp_sock_input, rtp_session->rtcp_local_addr, 0, (void *) &o, &len); |
| 2655 | } |
| 2656 | } |
| 2657 | |
| 2658 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_udptl_mode(switch_rtp_t *rtp_session) |
| 2659 | { |
| 2660 | switch_socket_t *sock; |
| 2661 | |
| 2662 | if (!switch_rtp_ready(rtp_session)) { |
| 2663 | return SWITCH_STATUS_FALSE; |
| 2664 | } |
| 2665 | |
| 2666 | if (switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA)) { |
| 2667 | ping_socket(rtp_session); |
| 2668 | } |
| 2669 | |
| 2670 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 2671 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 2672 | |
| 2673 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] || rtp_session->timer.timer_interface) { |
| 2674 | switch_core_timer_destroy(&rtp_session->timer); |
| 2675 | memset(&rtp_session->timer, 0, sizeof(rtp_session->timer)); |
| 2676 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER); |
| 2677 | } |
| 2678 | |
| 2679 | rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] = 0; |
| 2680 | |
| 2681 | if (rtp_session->rtcp_sock_input) { |
| 2682 | ping_socket(rtp_session); |
| 2683 | switch_socket_shutdown(rtp_session->rtcp_sock_input, SWITCH_SHUTDOWN_READWRITE); |
| 2684 | } |
| 2685 | |
| 2686 | if (rtp_session->rtcp_sock_output && rtp_session->rtcp_sock_output != rtp_session->rtcp_sock_input) { |
| 2687 | switch_socket_shutdown(rtp_session->rtcp_sock_output, SWITCH_SHUTDOWN_READWRITE); |
| 2688 | } |
| 2689 | |
| 2690 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 2691 | rtp_session->rtcp_sock_input = NULL((void*)0); |
| 2692 | rtp_session->rtcp_sock_output = NULL((void*)0); |
| 2693 | } else { |
| 2694 | if ((sock = rtp_session->rtcp_sock_input)) { |
| 2695 | rtp_session->rtcp_sock_input = NULL((void*)0); |
| 2696 | switch_socket_close(sock); |
| 2697 | |
| 2698 | if (rtp_session->rtcp_sock_output && rtp_session->rtcp_sock_output != sock) { |
| 2699 | if ((sock = rtp_session->rtcp_sock_output)) { |
| 2700 | rtp_session->rtcp_sock_output = NULL((void*)0); |
| 2701 | switch_socket_close(sock); |
| 2702 | } |
| 2703 | } |
| 2704 | } |
| 2705 | } |
| 2706 | |
| 2707 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL); |
| 2708 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA); |
| 2709 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, FALSE0); |
| 2710 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 2711 | |
| 2712 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 2713 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 2714 | |
| 2715 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_STICKY_FLUSH); |
| 2716 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 2717 | |
| 2718 | switch_rtp_break(rtp_session); |
| 2719 | |
| 2720 | return SWITCH_STATUS_SUCCESS; |
| 2721 | |
| 2722 | } |
| 2723 | |
| 2724 | |
| 2725 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_remote_address(switch_rtp_t *rtp_session, const char *host, switch_port_t port, switch_port_t remote_rtcp_port, |
| 2726 | switch_bool_t change_adv_addr, const char **err) |
| 2727 | { |
| 2728 | switch_sockaddr_t *remote_addr; |
| 2729 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 2730 | *err = "Success"; |
| 2731 | |
| 2732 | if (switch_sockaddr_info_get(&remote_addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || !remote_addr) { |
| 2733 | *err = "Remote Address Error!"; |
| 2734 | return SWITCH_STATUS_FALSE; |
| 2735 | } |
| 2736 | |
| 2737 | |
| 2738 | switch_mutex_lock(rtp_session->write_mutex); |
| 2739 | |
| 2740 | rtp_session->remote_addr = remote_addr; |
| 2741 | |
| 2742 | if (change_adv_addr) { |
| 2743 | rtp_session->remote_host_str = switch_core_strdup(rtp_session->pool, host)switch_core_perform_strdup(rtp_session->pool, host, "src/switch_rtp.c" , (const char *)__func__, 2743); |
| 2744 | rtp_session->remote_port = port; |
| 2745 | } |
| 2746 | |
| 2747 | rtp_session->eff_remote_host_str = switch_core_strdup(rtp_session->pool, host)switch_core_perform_strdup(rtp_session->pool, host, "src/switch_rtp.c" , (const char *)__func__, 2747); |
| 2748 | rtp_session->eff_remote_port = port; |
| 2749 | |
| 2750 | if (rtp_session->sock_input && switch_sockaddr_get_family(rtp_session->remote_addr) == switch_sockaddr_get_family(rtp_session->local_addr)) { |
| 2751 | rtp_session->sock_output = rtp_session->sock_input; |
| 2752 | } else { |
| 2753 | if (rtp_session->sock_output && rtp_session->sock_output != rtp_session->sock_input) { |
| 2754 | switch_socket_close(rtp_session->sock_output); |
| 2755 | } |
| 2756 | if ((status = switch_socket_create(&rtp_session->sock_output, |
| 2757 | switch_sockaddr_get_family(rtp_session->remote_addr), |
| 2758 | SOCK_DGRAMSOCK_DGRAM, 0, rtp_session->pool)) != SWITCH_STATUS_SUCCESS) { |
| 2759 | *err = "Socket Error!"; |
| 2760 | } |
| 2761 | } |
| 2762 | |
| 2763 | |
| 2764 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 2765 | if (remote_rtcp_port) { |
| 2766 | rtp_session->remote_rtcp_port = remote_rtcp_port; |
| 2767 | } else { |
| 2768 | rtp_session->remote_rtcp_port = rtp_session->eff_remote_port + 1; |
| 2769 | } |
| 2770 | status = enable_remote_rtcp_socket(rtp_session, err); |
| 2771 | } |
| 2772 | |
| 2773 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 2774 | rtp_session->rtcp_remote_addr = rtp_session->remote_addr; |
| 2775 | } |
| 2776 | |
| 2777 | switch_mutex_unlock(rtp_session->write_mutex); |
| 2778 | |
| 2779 | return status; |
| 2780 | } |
| 2781 | |
| 2782 | |
| 2783 | static const char *dtls_state_names_t[] = {"HANDSHAKE", "SETUP", "READY", "FAIL", "INVALID"}; |
| 2784 | static const char *dtls_state_names(dtls_state_t s) |
| 2785 | { |
| 2786 | if (s > DS_INVALID) { |
| 2787 | s = DS_INVALID; |
| 2788 | } |
| 2789 | |
| 2790 | return dtls_state_names_t[s]; |
| 2791 | } |
| 2792 | |
| 2793 | |
| 2794 | #define dtls_set_state(_dtls, _state)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2794, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(_dtls->state), dtls_state_names(_state) ); _dtls->new_state = 1; _dtls->last_state = _dtls-> state; _dtls->state = _state switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2794, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", dtls_state_names(_dtls->state), dtls_state_names(_state)); _dtls->new_state = 1; _dtls->last_state = _dtls->state; _dtls->state = _state |
| 2795 | |
| 2796 | #define cr_keylen16 16 |
| 2797 | #define cr_saltlen14 14 |
| 2798 | #define cr_kslen30 30 |
| 2799 | |
| 2800 | static int dtls_state_setup(switch_rtp_t *rtp_session, switch_dtls_t *dtls) |
| 2801 | { |
| 2802 | X509 *cert; |
| 2803 | int r = 0; |
| 2804 | |
| 2805 | if ((dtls->type & DTLS_TYPE_SERVER)) { |
| 2806 | r = 1; |
| 2807 | } else if ((cert = SSL_get_peer_certificate(dtls->ssl))) { |
| 2808 | switch_core_cert_extract_fingerprint(cert, dtls->remote_fp); |
| 2809 | r = switch_core_cert_verify(dtls->remote_fp); |
| 2810 | X509_free(cert); |
| 2811 | } |
| 2812 | |
| 2813 | if (!r) { |
| 2814 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2814, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s Fingerprint Verification Failed!\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 2815 | dtls_set_state(dtls, DS_FAIL)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2815, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(dtls->state), dtls_state_names(DS_FAIL) ); dtls->new_state = 1; dtls->last_state = dtls->state ; dtls->state = DS_FAIL; |
| 2816 | return -1; |
| 2817 | } else { |
| 2818 | uint8_t raw_key_data[cr_kslen30*2] = { 0 }; |
| 2819 | unsigned char *local_key, *remote_key, *local_salt, *remote_salt; |
| 2820 | unsigned char local_key_buf[cr_kslen30] = {0}, remote_key_buf[cr_kslen30] = {0}; |
| 2821 | |
| 2822 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2822, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "%s Fingerprint Verified.\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 2823 | |
| 2824 | #ifdef HAVE_OPENSSL_DTLS_SRTP1 |
| 2825 | if (!SSL_export_keying_material(dtls->ssl, raw_key_data, sizeof(raw_key_data), "EXTRACTOR-dtls_srtp", 19, NULL((void*)0), 0, 0)) { |
| 2826 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2826, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s Key material export failure\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 2827 | dtls_set_state(dtls, DS_FAIL)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2827, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(dtls->state), dtls_state_names(DS_FAIL) ); dtls->new_state = 1; dtls->last_state = dtls->state ; dtls->state = DS_FAIL; |
| 2828 | return -1; |
| 2829 | } |
| 2830 | #else |
| 2831 | return -1; |
| 2832 | #endif |
| 2833 | |
| 2834 | if ((dtls->type & DTLS_TYPE_CLIENT)) { |
| 2835 | local_key = raw_key_data; |
| 2836 | remote_key = local_key + cr_keylen16; |
| 2837 | local_salt = remote_key + cr_keylen16; |
| 2838 | remote_salt = local_salt + cr_saltlen14; |
| 2839 | |
| 2840 | } else { |
| 2841 | remote_key = raw_key_data; |
| 2842 | local_key = remote_key + cr_keylen16; |
| 2843 | remote_salt = local_key + cr_keylen16; |
| 2844 | local_salt = remote_salt + cr_saltlen14; |
| 2845 | } |
| 2846 | |
| 2847 | memcpy(local_key_buf, local_key, cr_keylen16); |
| 2848 | memcpy(local_key_buf + cr_keylen16, local_salt, cr_saltlen14); |
| 2849 | |
| 2850 | memcpy(remote_key_buf, remote_key, cr_keylen16); |
| 2851 | memcpy(remote_key_buf + cr_keylen16, remote_salt, cr_saltlen14); |
| 2852 | |
| 2853 | if (dtls == rtp_session->rtcp_dtls && rtp_session->rtcp_dtls != rtp_session->dtls) { |
| 2854 | switch_rtp_add_crypto_key(rtp_session, SWITCH_RTP_CRYPTO_SEND_RTCP, 0, AES_CM_128_HMAC_SHA1_80, local_key_buf, cr_kslen30); |
| 2855 | switch_rtp_add_crypto_key(rtp_session, SWITCH_RTP_CRYPTO_RECV_RTCP, 0, AES_CM_128_HMAC_SHA1_80, remote_key_buf, cr_kslen30); |
| 2856 | } else { |
| 2857 | switch_rtp_add_crypto_key(rtp_session, SWITCH_RTP_CRYPTO_SEND, 0, AES_CM_128_HMAC_SHA1_80, local_key_buf, cr_kslen30); |
| 2858 | switch_rtp_add_crypto_key(rtp_session, SWITCH_RTP_CRYPTO_RECV, 0, AES_CM_128_HMAC_SHA1_80, remote_key_buf, cr_kslen30); |
| 2859 | } |
| 2860 | } |
| 2861 | |
| 2862 | dtls_set_state(dtls, DS_READY)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2862, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(dtls->state), dtls_state_names(DS_READY )); dtls->new_state = 1; dtls->last_state = dtls->state ; dtls->state = DS_READY; |
| 2863 | |
| 2864 | return 0; |
| 2865 | } |
| 2866 | |
| 2867 | static int dtls_state_ready(switch_rtp_t *rtp_session, switch_dtls_t *dtls) |
| 2868 | { |
| 2869 | |
| 2870 | if (dtls->new_state) { |
| 2871 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 2872 | switch_core_session_t *other_session; |
| 2873 | rtp_session->fir_countdown = FIR_COUNTDOWN50; |
| 2874 | |
| 2875 | if (rtp_session->session && switch_core_session_get_partner(rtp_session->session, &other_session)switch_core_session_perform_get_partner(rtp_session->session , &other_session, "src/switch_rtp.c", (const char *)__func__ , 2875) == SWITCH_STATUS_SUCCESS) { |
| 2876 | switch_core_session_refresh_video(other_session); |
| 2877 | switch_core_session_rwunlock(other_session); |
| 2878 | } |
| 2879 | } |
| 2880 | dtls->new_state = 0; |
| 2881 | } |
| 2882 | return 0; |
| 2883 | } |
| 2884 | |
| 2885 | static int dtls_state_fail(switch_rtp_t *rtp_session, switch_dtls_t *dtls) |
| 2886 | { |
| 2887 | if (rtp_session->session) { |
| 2888 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 2889 | switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER)switch_channel_perform_hangup(channel, "src/switch_rtp.c", (const char *)__func__, 2889, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER ); |
| 2890 | } |
| 2891 | |
| 2892 | return -1; |
| 2893 | } |
| 2894 | |
| 2895 | |
| 2896 | static int dtls_state_handshake(switch_rtp_t *rtp_session, switch_dtls_t *dtls) |
| 2897 | { |
| 2898 | int ret; |
| 2899 | |
| 2900 | if ((ret = SSL_do_handshake(dtls->ssl)) != 1){ |
| 2901 | switch((ret = SSL_get_error(dtls->ssl, ret))){ |
| 2902 | case SSL_ERROR_WANT_READ2: |
| 2903 | case SSL_ERROR_WANT_WRITE3: |
| 2904 | case SSL_ERROR_NONE0: |
| 2905 | break; |
| 2906 | default: |
| 2907 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2907, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s Handshake failure %d\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", ret); |
| 2908 | dtls_set_state(dtls, DS_FAIL)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2908, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(dtls->state), dtls_state_names(DS_FAIL) ); dtls->new_state = 1; dtls->last_state = dtls->state ; dtls->state = DS_FAIL; |
| 2909 | return -1; |
| 2910 | } |
| 2911 | } |
| 2912 | |
| 2913 | if (SSL_is_init_finished(dtls->ssl)(SSL_state(dtls->ssl) == 0x03)) { |
| 2914 | dtls_set_state(dtls, DS_SETUP)switch_log_printf(SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c" , (const char *)__func__, 2914, (const char*)(rtp_session-> session), SWITCH_LOG_INFO, "Changing %s DTLS state from %s to %s\n" , rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , dtls_state_names(dtls->state), dtls_state_names(DS_SETUP )); dtls->new_state = 1; dtls->last_state = dtls->state ; dtls->state = DS_SETUP; |
| 2915 | } |
| 2916 | |
| 2917 | return 0; |
| 2918 | } |
| 2919 | |
| 2920 | static void free_dtls(switch_dtls_t **dtlsp) |
| 2921 | { |
| 2922 | switch_dtls_t *dtls; |
| 2923 | |
| 2924 | if (!dtlsp) { |
| 2925 | return; |
| 2926 | } |
| 2927 | |
| 2928 | dtls = *dtlsp; |
| 2929 | *dtlsp = NULL((void*)0); |
| 2930 | |
| 2931 | if (dtls->ssl) { |
| 2932 | SSL_free(dtls->ssl); |
| 2933 | } |
| 2934 | |
| 2935 | if (dtls->ssl_ctx) { |
| 2936 | SSL_CTX_free(dtls->ssl_ctx); |
| 2937 | } |
| 2938 | } |
| 2939 | |
| 2940 | static int do_dtls(switch_rtp_t *rtp_session, switch_dtls_t *dtls) |
| 2941 | { |
| 2942 | int r = 0, ret = 0, len; |
| 2943 | switch_size_t bytes; |
| 2944 | unsigned char buf[4096] = ""; |
| 2945 | int ready = rtp_session->ice.ice_user ? (rtp_session->ice.rready && rtp_session->ice.ready) : 1; |
| 2946 | |
| 2947 | |
| 2948 | if (!dtls->bytes && !ready) { |
| 2949 | return 0; |
| 2950 | } |
| 2951 | |
| 2952 | if ((ret = BIO_write(dtls->read_bio, dtls->data, (int)dtls->bytes)) != (int)dtls->bytes && dtls->bytes > 0) { |
| 2953 | ret = SSL_get_error(dtls->ssl, ret); |
| 2954 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2954, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS packet read err %d\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", ret); |
| 2955 | } |
| 2956 | |
| 2957 | r = dtls_states[dtls->state](rtp_session, dtls); |
| 2958 | |
| 2959 | if ((len = BIO_read(dtls->write_bio, buf, sizeof(buf))) > 0) { |
| 2960 | bytes = len; |
| 2961 | |
| 2962 | if (switch_socket_sendto(dtls->sock_output, dtls->remote_addr, 0, (void *)buf, &bytes ) != SWITCH_STATUS_SUCCESS) { |
| 2963 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2963, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS packet not written\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 2964 | } |
| 2965 | } |
| 2966 | |
| 2967 | |
| 2968 | |
| 2969 | return r; |
| 2970 | } |
| 2971 | |
| 2972 | #if VERIFY |
| 2973 | static int cb_verify_peer(int preverify_ok, X509_STORE_CTX *ctx) |
| 2974 | { |
| 2975 | SSL *ssl = NULL((void*)0); |
| 2976 | switch_dtls_t *dtls; |
| 2977 | X509 *cert; |
| 2978 | int r = 0; |
| 2979 | |
| 2980 | ssl = X509_STORE_CTX_get_app_data(ctx)X509_STORE_CTX_get_ex_data(ctx,0); |
| 2981 | dtls = (switch_dtls_t *) SSL_get_app_data(ssl)(SSL_get_ex_data(ssl,0)); |
| 2982 | |
| 2983 | if (!(ssl && dtls)) { |
| 2984 | return 0; |
| 2985 | } |
| 2986 | |
| 2987 | if ((cert = SSL_get_peer_certificate(dtls->ssl))) { |
| 2988 | switch_core_cert_extract_fingerprint(cert, dtls->remote_fp); |
| 2989 | |
| 2990 | r = switch_core_cert_verify(dtls->remote_fp); |
| 2991 | |
| 2992 | X509_free(cert); |
| 2993 | } else { |
| 2994 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(dtls->rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 2994, (const char*)(dtls->rtp_session->session ), SWITCH_LOG_ERROR, "%s CERT ERR!\n", rtp_type(dtls->rtp_session)dtls->rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 2995 | } |
| 2996 | |
| 2997 | return r; |
| 2998 | } |
| 2999 | #endif |
| 3000 | |
| 3001 | SWITCH_DECLARE(int)__attribute__((visibility("default"))) int switch_rtp_has_dtls(void) { |
| 3002 | #ifdef HAVE_OPENSSL_DTLS_SRTP1 |
| 3003 | return 1; |
| 3004 | #else |
| 3005 | return 0; |
| 3006 | #endif |
| 3007 | } |
| 3008 | |
| 3009 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_del_dtls(switch_rtp_t *rtp_session, dtls_type_t type) |
| 3010 | { |
| 3011 | |
| 3012 | if (!rtp_session->dtls && !rtp_session->rtcp_dtls) { |
| 3013 | return SWITCH_STATUS_FALSE; |
| 3014 | } |
| 3015 | |
| 3016 | if ((type & DTLS_TYPE_RTP)) { |
| 3017 | if (rtp_session->dtls && rtp_session->dtls == rtp_session->rtcp_dtls) { |
| 3018 | rtp_session->rtcp_dtls = NULL((void*)0); |
| 3019 | } |
| 3020 | |
| 3021 | if (rtp_session->dtls) { |
| 3022 | free_dtls(&rtp_session->dtls); |
| 3023 | } |
| 3024 | |
| 3025 | if (rtp_session->jb) { |
| 3026 | stfu_n_reset(rtp_session->jb)_stfu_n_reset(rtp_session->jb, "src/switch_rtp.c", __FUNCTION__ , 3026); |
| 3027 | } |
| 3028 | |
| 3029 | } |
| 3030 | |
| 3031 | if ((type & DTLS_TYPE_RTCP) && rtp_session->rtcp_dtls) { |
| 3032 | free_dtls(&rtp_session->rtcp_dtls); |
| 3033 | } |
| 3034 | |
| 3035 | |
| 3036 | #ifdef ENABLE_SRTP1 |
| 3037 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 3038 | int x; |
| 3039 | for(x = 0; x < 2; x++) { |
| 3040 | if (rtp_session->send_ctx[x]) { |
| 3041 | srtp_dealloc(rtp_session->send_ctx[x]); |
| 3042 | rtp_session->send_ctx[x] = NULL((void*)0); |
| 3043 | } |
| 3044 | } |
| 3045 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND] = 0; |
| 3046 | } |
| 3047 | |
| 3048 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV]) { |
| 3049 | int x; |
| 3050 | for (x = 0; x < 2; x++) { |
| 3051 | if (rtp_session->recv_ctx[x]) { |
| 3052 | srtp_dealloc(rtp_session->recv_ctx[x]); |
| 3053 | rtp_session->recv_ctx[x] = NULL((void*)0); |
| 3054 | } |
| 3055 | } |
| 3056 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] = 0; |
| 3057 | } |
| 3058 | #endif |
| 3059 | |
| 3060 | return SWITCH_STATUS_SUCCESS; |
| 3061 | } |
| 3062 | |
| 3063 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_add_dtls(switch_rtp_t *rtp_session, dtls_fingerprint_t *local_fp, dtls_fingerprint_t *remote_fp, dtls_type_t type) |
| 3064 | { |
| 3065 | switch_dtls_t *dtls; |
| 3066 | int ret; |
| 3067 | const char *kind = ""; |
| 3068 | |
| 3069 | #ifndef HAVE_OPENSSL_DTLS_SRTP1 |
| 3070 | return SWITCH_STATUS_FALSE; |
| 3071 | #endif |
| 3072 | |
| 3073 | if (!switch_rtp_ready(rtp_session)) { |
| 3074 | return SWITCH_STATUS_FALSE; |
| 3075 | } |
| 3076 | |
| 3077 | if (!((type & DTLS_TYPE_RTP) || (type & DTLS_TYPE_RTCP)) || !((type & DTLS_TYPE_CLIENT) || (type & DTLS_TYPE_SERVER))) { |
| 3078 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3078, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "INVALID TYPE!\n"); |
| 3079 | } |
| 3080 | |
| 3081 | switch_rtp_del_dtls(rtp_session, type); |
| 3082 | |
| 3083 | if ((type & DTLS_TYPE_RTP) && (type & DTLS_TYPE_RTCP)) { |
| 3084 | kind = "RTP/RTCP"; |
| 3085 | } else if ((type & DTLS_TYPE_RTP)) { |
| 3086 | kind = "RTP"; |
| 3087 | } else { |
| 3088 | kind = "RTCP"; |
| 3089 | } |
| 3090 | |
| 3091 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3091, (const char*)(rtp_session->session), SWITCH_LOG_INFO, |
| 3092 | "Activate %s %s DTLS %s\n", kind, rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", (type & DTLS_TYPE_SERVER) ? "server" : "client"); |
| 3093 | |
| 3094 | if (((type & DTLS_TYPE_RTP) && rtp_session->dtls) || ((type & DTLS_TYPE_RTCP) && rtp_session->rtcp_dtls)) { |
| 3095 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3095, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "DTLS ALREADY INIT\n"); |
| 3096 | return SWITCH_STATUS_FALSE; |
| 3097 | } |
| 3098 | |
| 3099 | dtls = switch_core_alloc(rtp_session->pool, sizeof(*dtls))switch_core_perform_alloc(rtp_session->pool, sizeof(*dtls) , "src/switch_rtp.c", (const char *)__func__, 3099); |
| 3100 | |
| 3101 | dtls->pem = switch_core_sprintf(rtp_session->pool, "%s%s%s.pem", SWITCH_GLOBAL_dirs.certs_dir, SWITCH_PATH_SEPARATOR"/", DTLS_SRTP_FNAME"dtls-srtp"); |
| 3102 | |
| 3103 | if (switch_file_exists(dtls->pem, rtp_session->pool) == SWITCH_STATUS_SUCCESS) { |
| 3104 | dtls->pvt = dtls->rsa = dtls->pem; |
| 3105 | } else { |
| 3106 | dtls->pvt = switch_core_sprintf(rtp_session->pool, "%s%s%s.key", SWITCH_GLOBAL_dirs.certs_dir, SWITCH_PATH_SEPARATOR"/", DTLS_SRTP_FNAME"dtls-srtp"); |
| 3107 | dtls->rsa = switch_core_sprintf(rtp_session->pool, "%s%s%s.crt", SWITCH_GLOBAL_dirs.certs_dir, SWITCH_PATH_SEPARATOR"/", DTLS_SRTP_FNAME"dtls-srtp"); |
| 3108 | } |
| 3109 | |
| 3110 | dtls->ca = switch_core_sprintf(rtp_session->pool, "%s%sca-bundle.crt", SWITCH_GLOBAL_dirs.certs_dir, SWITCH_PATH_SEPARATOR"/"); |
| 3111 | |
| 3112 | dtls->ssl_ctx = SSL_CTX_new(DTLSv1_method()); |
| 3113 | switch_assert(dtls->ssl_ctx)((dtls->ssl_ctx) ? (void) (0) : __assert_fail ("dtls->ssl_ctx" , "src/switch_rtp.c", 3113, __PRETTY_FUNCTION__)); |
| 3114 | |
| 3115 | SSL_CTX_set_mode(dtls->ssl_ctx, SSL_MODE_AUTO_RETRY)SSL_CTX_ctrl((dtls->ssl_ctx),33,(0x00000004L),((void*)0)); |
| 3116 | |
| 3117 | //SSL_CTX_set_verify(dtls->ssl_ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, NULL); |
| 3118 | SSL_CTX_set_verify(dtls->ssl_ctx, SSL_VERIFY_NONE0x00, NULL((void*)0)); |
| 3119 | |
| 3120 | SSL_CTX_set_cipher_list(dtls->ssl_ctx, "ALL"); |
| 3121 | |
| 3122 | #ifdef HAVE_OPENSSL_DTLS_SRTP1 |
| 3123 | //SSL_CTX_set_tlsext_use_srtp(dtls->ssl_ctx, "SRTP_AES128_CM_SHA1_80:SRTP_AES128_CM_SHA1_32"); |
| 3124 | SSL_CTX_set_tlsext_use_srtp(dtls->ssl_ctx, "SRTP_AES128_CM_SHA1_80"); |
| 3125 | #endif |
| 3126 | |
| 3127 | dtls->type = type; |
| 3128 | dtls->read_bio = BIO_new(BIO_s_mem()); |
| 3129 | switch_assert(dtls->read_bio)((dtls->read_bio) ? (void) (0) : __assert_fail ("dtls->read_bio" , "src/switch_rtp.c", 3129, __PRETTY_FUNCTION__)); |
| 3130 | |
| 3131 | dtls->write_bio = BIO_new(BIO_s_mem()); |
| 3132 | switch_assert(dtls->write_bio)((dtls->write_bio) ? (void) (0) : __assert_fail ("dtls->write_bio" , "src/switch_rtp.c", 3132, __PRETTY_FUNCTION__)); |
| 3133 | |
| 3134 | BIO_set_mem_eof_return(dtls->read_bio, -1)BIO_ctrl(dtls->read_bio,130,-1,((void*)0)); |
| 3135 | BIO_set_mem_eof_return(dtls->write_bio, -1)BIO_ctrl(dtls->write_bio,130,-1,((void*)0)); |
| 3136 | |
| 3137 | if ((ret=SSL_CTX_use_certificate_file(dtls->ssl_ctx, dtls->rsa, SSL_FILETYPE_PEM1)) != 1) { |
| 3138 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3138, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS cert err [%d]\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", SSL_get_error(dtls->ssl, ret)); |
| 3139 | return SWITCH_STATUS_FALSE; |
| 3140 | } |
| 3141 | |
| 3142 | if ((ret=SSL_CTX_use_PrivateKey_file(dtls->ssl_ctx, dtls->pvt, SSL_FILETYPE_PEM1)) != 1) { |
| 3143 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3143, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS key err [%d]\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", SSL_get_error(dtls->ssl, ret)); |
| 3144 | return SWITCH_STATUS_FALSE; |
| 3145 | } |
| 3146 | |
| 3147 | if (SSL_CTX_check_private_key(dtls->ssl_ctx) == 0) { |
| 3148 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3148, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS check key failed\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 3149 | return SWITCH_STATUS_FALSE; |
| 3150 | } |
| 3151 | |
| 3152 | if (!zstr(dtls->ca)_zstr(dtls->ca) && switch_file_exists(dtls->ca, rtp_session->pool) == SWITCH_STATUS_SUCCESS |
| 3153 | && (ret = SSL_CTX_load_verify_locations(dtls->ssl_ctx, dtls->ca, NULL((void*)0))) != 1) { |
| 3154 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3154, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "%s DTLS check chain cert failed [%d]\n", |
| 3155 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio" , |
| 3156 | SSL_get_error(dtls->ssl, ret)); |
| 3157 | return SWITCH_STATUS_FALSE; |
| 3158 | } |
| 3159 | |
| 3160 | dtls->ssl = SSL_new(dtls->ssl_ctx); |
| 3161 | |
| 3162 | SSL_set_bio(dtls->ssl, dtls->read_bio, dtls->write_bio); |
| 3163 | SSL_set_mode(dtls->ssl, SSL_MODE_AUTO_RETRY)SSL_ctrl((dtls->ssl),33,(0x00000004L),((void*)0)); |
| 3164 | SSL_set_read_ahead(dtls->ssl, 1); |
| 3165 | //SSL_set_verify(dtls->ssl, (SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT), cb_verify_peer); |
| 3166 | SSL_set_verify(dtls->ssl, SSL_VERIFY_NONE0x00, NULL((void*)0)); |
| 3167 | SSL_set_app_data(dtls->ssl, dtls)(SSL_set_ex_data(dtls->ssl,0,(char *)dtls)); |
| 3168 | |
| 3169 | BIO_ctrl(dtls->read_bio, BIO_CTRL_DGRAM_SET_MTU42, 1400, NULL((void*)0)); |
| 3170 | BIO_ctrl(dtls->write_bio, BIO_CTRL_DGRAM_SET_MTU42, 1400, NULL((void*)0)); |
| 3171 | SSL_set_mtu(dtls->ssl, 1400)SSL_ctrl((dtls->ssl),17,(1400),((void*)0)); |
| 3172 | BIO_ctrl(dtls->write_bio, BIO_C_SET_BUFF_SIZE117, 1400, NULL((void*)0)); |
| 3173 | BIO_ctrl(dtls->read_bio, BIO_C_SET_BUFF_SIZE117, 1400, NULL((void*)0)); |
| 3174 | |
| 3175 | |
| 3176 | |
| 3177 | dtls->local_fp = local_fp; |
| 3178 | dtls->remote_fp = remote_fp; |
| 3179 | dtls->rtp_session = rtp_session; |
| 3180 | |
| 3181 | switch_core_cert_expand_fingerprint(remote_fp, remote_fp->str); |
| 3182 | |
| 3183 | if ((type & DTLS_TYPE_RTP)) { |
| 3184 | rtp_session->dtls = dtls; |
| 3185 | dtls->sock_output = rtp_session->sock_output; |
| 3186 | dtls->remote_addr = rtp_session->remote_addr; |
| 3187 | } |
| 3188 | |
| 3189 | if ((type & DTLS_TYPE_RTCP)) { |
| 3190 | rtp_session->rtcp_dtls = dtls; |
| 3191 | if (!(type & DTLS_TYPE_RTP)) { |
| 3192 | dtls->sock_output = rtp_session->rtcp_sock_output; |
| 3193 | dtls->remote_addr = rtp_session->rtcp_remote_addr; |
| 3194 | } |
| 3195 | } |
| 3196 | |
| 3197 | if ((type & DTLS_TYPE_SERVER)) { |
| 3198 | SSL_set_accept_state(dtls->ssl); |
| 3199 | } else { |
| 3200 | SSL_set_connect_state(dtls->ssl); |
| 3201 | } |
| 3202 | |
| 3203 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO_BREAK] = 1; |
| 3204 | switch_rtp_break(rtp_session); |
| 3205 | |
| 3206 | return SWITCH_STATUS_SUCCESS; |
| 3207 | |
| 3208 | } |
| 3209 | |
| 3210 | |
| 3211 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_add_crypto_key(switch_rtp_t *rtp_session, |
| 3212 | switch_rtp_crypto_direction_t direction, |
| 3213 | uint32_t index, switch_rtp_crypto_key_type_t type, unsigned char *key, switch_size_t keylen) |
| 3214 | { |
| 3215 | #ifndef ENABLE_SRTP1 |
| 3216 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3216, (const char*)(rtp_session->session), SWITCH_LOG_CRIT, "SRTP NOT SUPPORTED IN THIS BUILD!\n"); |
| 3217 | return SWITCH_STATUS_FALSE; |
| 3218 | #else |
| 3219 | switch_rtp_crypto_key_t *crypto_key; |
| 3220 | srtp_policy_t *policy; |
| 3221 | err_status_t stat; |
| 3222 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 3223 | |
| 3224 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 3225 | switch_event_t *fsevent = NULL((void*)0); |
| 3226 | int idx = 0; |
| 3227 | const char *var; |
| 3228 | |
| 3229 | if (direction >= SWITCH_RTP_CRYPTO_MAX || keylen > SWITCH_RTP_MAX_CRYPTO_LEN64) { |
| 3230 | return SWITCH_STATUS_FALSE; |
| 3231 | } |
| 3232 | |
| 3233 | crypto_key = switch_core_alloc(rtp_session->pool, sizeof(*crypto_key))switch_core_perform_alloc(rtp_session->pool, sizeof(*crypto_key ), "src/switch_rtp.c", (const char *)__func__, 3233); |
| 3234 | |
| 3235 | if (direction == SWITCH_RTP_CRYPTO_RECV_RTCP) { |
| 3236 | direction = SWITCH_RTP_CRYPTO_RECV; |
| 3237 | rtp_session->srtp_idx_rtcp = idx = 1; |
| 3238 | } else if (direction == SWITCH_RTP_CRYPTO_SEND_RTCP) { |
| 3239 | direction = SWITCH_RTP_CRYPTO_SEND; |
| 3240 | rtp_session->srtp_idx_rtcp = idx = 1; |
| 3241 | } |
| 3242 | |
| 3243 | if (direction == SWITCH_RTP_CRYPTO_RECV) { |
| 3244 | policy = &rtp_session->recv_policy[idx]; |
| 3245 | } else { |
| 3246 | policy = &rtp_session->send_policy[idx]; |
| 3247 | } |
| 3248 | |
| 3249 | crypto_key->type = type; |
| 3250 | crypto_key->index = index; |
| 3251 | memcpy(crypto_key->key, key, keylen); |
| 3252 | crypto_key->next = rtp_session->crypto_keys[direction]; |
| 3253 | rtp_session->crypto_keys[direction] = crypto_key; |
| 3254 | |
| 3255 | memset(policy, 0, sizeof(*policy)); |
| 3256 | |
| 3257 | /* many devices can't handle gaps in SRTP streams */ |
| 3258 | if (!((var = switch_channel_get_variable(channel, "srtp_allow_idle_gaps")switch_channel_get_variable_dup(channel, "srtp_allow_idle_gaps" , SWITCH_TRUE, -1)) |
| 3259 | && switch_true(var)) |
| 3260 | && (!(var = switch_channel_get_variable(channel, "send_silence_when_idle")switch_channel_get_variable_dup(channel, "send_silence_when_idle" , SWITCH_TRUE, -1)) |
| 3261 | || !(atoi(var)))) { |
| 3262 | switch_channel_set_variable(channel, "send_silence_when_idle", "-1")switch_channel_set_variable_var_check(channel, "send_silence_when_idle" , "-1", SWITCH_TRUE); |
| 3263 | } |
| 3264 | |
| 3265 | switch (crypto_key->type) { |
| 3266 | case AES_CM_128_HMAC_SHA1_80: |
| 3267 | crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy->rtp)crypto_policy_set_rtp_default(&policy->rtp); |
| 3268 | crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy->rtcp)crypto_policy_set_rtp_default(&policy->rtcp); |
| 3269 | |
| 3270 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3271 | switch_channel_set_variable(channel, "rtp_has_crypto", "AES_CM_128_HMAC_SHA1_80")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AES_CM_128_HMAC_SHA1_80", SWITCH_TRUE); |
| 3272 | } |
| 3273 | break; |
| 3274 | case AES_CM_128_HMAC_SHA1_32: |
| 3275 | crypto_policy_set_aes_cm_128_hmac_sha1_32(&policy->rtp); |
| 3276 | crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy->rtcp)crypto_policy_set_rtp_default(&policy->rtcp); |
| 3277 | |
| 3278 | |
| 3279 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3280 | switch_channel_set_variable(channel, "rtp_has_crypto", "AES_CM_128_HMAC_SHA1_32")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AES_CM_128_HMAC_SHA1_32", SWITCH_TRUE); |
| 3281 | } |
| 3282 | break; |
| 3283 | |
| 3284 | case AEAD_AES_256_GCM_8: |
| 3285 | crypto_policy_set_aes_gcm_256_8_auth(&policy->rtp); |
| 3286 | crypto_policy_set_aes_gcm_256_8_auth(&policy->rtcp); |
| 3287 | |
| 3288 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3289 | switch_channel_set_variable(channel, "rtp_has_crypto", "AEAD_AES_256_GCM_8")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AEAD_AES_256_GCM_8", SWITCH_TRUE); |
| 3290 | } |
| 3291 | break; |
| 3292 | |
| 3293 | case AEAD_AES_128_GCM_8: |
| 3294 | crypto_policy_set_aes_gcm_128_8_auth(&policy->rtp); |
| 3295 | crypto_policy_set_aes_gcm_128_8_auth(&policy->rtcp); |
| 3296 | |
| 3297 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3298 | switch_channel_set_variable(channel, "rtp_has_crypto", "AEAD_AES_128_GCM_8")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AEAD_AES_128_GCM_8", SWITCH_TRUE); |
| 3299 | } |
| 3300 | break; |
| 3301 | |
| 3302 | case AES_CM_256_HMAC_SHA1_80: |
| 3303 | crypto_policy_set_aes_cm_256_hmac_sha1_80(&policy->rtp); |
| 3304 | crypto_policy_set_aes_cm_256_hmac_sha1_80(&policy->rtcp); |
| 3305 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3306 | switch_channel_set_variable(channel, "rtp_has_crypto", "AES_CM_256_HMAC_SHA1_80")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AES_CM_256_HMAC_SHA1_80", SWITCH_TRUE); |
| 3307 | } |
| 3308 | break; |
| 3309 | case AES_CM_128_NULL_AUTH: |
| 3310 | crypto_policy_set_aes_cm_128_null_auth(&policy->rtp); |
| 3311 | crypto_policy_set_aes_cm_128_null_auth(&policy->rtcp); |
| 3312 | |
| 3313 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3314 | switch_channel_set_variable(channel, "rtp_has_crypto", "AES_CM_128_NULL_AUTH")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "AES_CM_128_NULL_AUTH", SWITCH_TRUE); |
| 3315 | } |
| 3316 | break; |
| 3317 | default: |
| 3318 | break; |
| 3319 | } |
| 3320 | |
| 3321 | policy->key = (uint8_t *) crypto_key->key; |
| 3322 | policy->next = NULL((void*)0); |
| 3323 | |
| 3324 | policy->window_size = 1024; |
| 3325 | policy->allow_repeat_tx = 1; |
| 3326 | |
| 3327 | //policy->rtp.sec_serv = sec_serv_conf_and_auth; |
| 3328 | //policy->rtcp.sec_serv = sec_serv_conf_and_auth; |
| 3329 | |
| 3330 | switch (direction) { |
| 3331 | case SWITCH_RTP_CRYPTO_RECV: |
| 3332 | policy->ssrc.type = ssrc_any_inbound; |
| 3333 | |
| 3334 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && idx == 0 && rtp_session->recv_ctx[idx]) { |
| 3335 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV_RESET] = 1; |
| 3336 | } else { |
| 3337 | if ((stat = srtp_create(&rtp_session->recv_ctx[idx], policy))) { |
| 3338 | status = SWITCH_STATUS_FALSE; |
| 3339 | } |
| 3340 | |
| 3341 | if (status == SWITCH_STATUS_SUCCESS) { |
| 3342 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3342, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "Activating %s Secure %s RECV\n", |
| 3343 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "Video" : "Audio", idx ? "RTCP" : "RTP"); |
| 3344 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] = 1; |
| 3345 | } else { |
| 3346 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3346, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error allocating srtp [%d]\n", stat); |
| 3347 | return status; |
| 3348 | } |
| 3349 | } |
| 3350 | break; |
| 3351 | case SWITCH_RTP_CRYPTO_SEND: |
| 3352 | policy->ssrc.type = ssrc_any_outbound; |
| 3353 | //policy->ssrc.type = ssrc_specific; |
| 3354 | //policy->ssrc.value = rtp_session->ssrc; |
| 3355 | |
| 3356 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND] && idx == 0 && rtp_session->send_ctx[idx]) { |
| 3357 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND_RESET] = 1; |
| 3358 | } else { |
| 3359 | if ((stat = srtp_create(&rtp_session->send_ctx[idx], policy))) { |
| 3360 | status = SWITCH_STATUS_FALSE; |
| 3361 | } |
| 3362 | |
| 3363 | if (status == SWITCH_STATUS_SUCCESS) { |
| 3364 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3364, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "Activating %s Secure %s SEND\n", |
| 3365 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "Video" : "Audio", idx ? "RTCP" : "RTP"); |
| 3366 | rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND] = 1; |
| 3367 | } else { |
| 3368 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3368, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error allocating SRTP [%d]\n", stat); |
| 3369 | return status; |
| 3370 | } |
| 3371 | } |
| 3372 | |
| 3373 | break; |
| 3374 | default: |
| 3375 | abort(); |
| 3376 | break; |
| 3377 | } |
| 3378 | |
| 3379 | if (switch_event_create(&fsevent, SWITCH_EVENT_CALL_SECURE)switch_event_create_subclass_detailed("src/switch_rtp.c", (const char * )(const char *)__func__, 3379, &fsevent, SWITCH_EVENT_CALL_SECURE , ((void*)0)) == SWITCH_STATUS_SUCCESS) { |
| 3380 | if (rtp_session->dtls) { |
| 3381 | switch_event_add_header(fsevent, SWITCH_STACK_BOTTOM, "secure_type", "srtp:dtls:AES_CM_128_HMAC_SHA1_80"); |
| 3382 | switch_channel_set_variable(channel, "rtp_has_crypto", "srtp:dtls:AES_CM_128_HMAC_SHA1_80")switch_channel_set_variable_var_check(channel, "rtp_has_crypto" , "srtp:dtls:AES_CM_128_HMAC_SHA1_80", SWITCH_TRUE); |
| 3383 | } else { |
| 3384 | switch_event_add_header(fsevent, SWITCH_STACK_BOTTOM, "secure_type", "srtp:sdes:%s", switch_channel_get_variable(channel, "rtp_has_crypto")switch_channel_get_variable_dup(channel, "rtp_has_crypto", SWITCH_TRUE , -1)); |
| 3385 | } |
| 3386 | switch_event_add_header_string(fsevent, SWITCH_STACK_BOTTOM, "caller-unique-id", switch_channel_get_uuid(channel)); |
| 3387 | switch_event_fire(&fsevent)switch_event_fire_detailed("src/switch_rtp.c", (const char * ) (const char *)__func__, 3387, &fsevent, ((void*)0)); |
| 3388 | } |
| 3389 | |
| 3390 | |
| 3391 | return SWITCH_STATUS_SUCCESS; |
| 3392 | #endif |
| 3393 | } |
| 3394 | |
| 3395 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_interval(switch_rtp_t *rtp_session, uint32_t ms_per_packet, uint32_t samples_per_interval) |
| 3396 | { |
| 3397 | rtp_session->ms_per_packet = ms_per_packet; |
| 3398 | rtp_session->samples_per_interval = rtp_session->conf_samples_per_interval = samples_per_interval; |
| 3399 | rtp_session->missed_count = 0; |
| 3400 | rtp_session->samples_per_second = |
| 3401 | (uint32_t) ((double) (1000.0f / (double) (rtp_session->ms_per_packet / 1000)) * (double) rtp_session->samples_per_interval); |
| 3402 | |
| 3403 | rtp_session->one_second = (rtp_session->samples_per_second / rtp_session->samples_per_interval); |
| 3404 | |
| 3405 | return SWITCH_STATUS_SUCCESS; |
| 3406 | } |
| 3407 | |
| 3408 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_change_interval(switch_rtp_t *rtp_session, uint32_t ms_per_packet, uint32_t samples_per_interval) |
| 3409 | { |
| 3410 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 3411 | int change_timer = 0; |
| 3412 | |
| 3413 | if (rtp_session->ms_per_packet && rtp_session->ms_per_packet != ms_per_packet) { |
| 3414 | change_timer = 1; |
| 3415 | } |
| 3416 | |
| 3417 | switch_rtp_set_interval(rtp_session, ms_per_packet, samples_per_interval); |
| 3418 | |
| 3419 | if (change_timer && rtp_session->timer_name) { |
| 3420 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 3421 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 3422 | |
| 3423 | if (rtp_session->timer.timer_interface) { |
| 3424 | switch_core_timer_destroy(&rtp_session->timer); |
| 3425 | } |
| 3426 | if ((status = switch_core_timer_init(&rtp_session->timer, |
| 3427 | rtp_session->timer_name, ms_per_packet / 1000, |
| 3428 | samples_per_interval, rtp_session->pool)) == SWITCH_STATUS_SUCCESS) { |
| 3429 | |
| 3430 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3430, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, |
| 3431 | "RE-Starting timer [%s] %d bytes per %dms\n", rtp_session->timer_name, samples_per_interval, ms_per_packet / 1000); |
| 3432 | } else { |
| 3433 | |
| 3434 | memset(&rtp_session->timer, 0, sizeof(rtp_session->timer)); |
| 3435 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3435, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, |
| 3436 | "Problem RE-Starting timer [%s] %d bytes per %dms\n", rtp_session->timer_name, samples_per_interval, ms_per_packet / 1000); |
| 3437 | } |
| 3438 | |
| 3439 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 3440 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 3441 | } |
| 3442 | |
| 3443 | return status; |
| 3444 | } |
| 3445 | |
| 3446 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_ssrc(switch_rtp_t *rtp_session, uint32_t ssrc) |
| 3447 | { |
| 3448 | rtp_session->ssrc = ssrc; |
| 3449 | rtp_session->send_msg.header.ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 3450 | |
| 3451 | return SWITCH_STATUS_SUCCESS; |
| 3452 | } |
| 3453 | |
| 3454 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_set_remote_ssrc(switch_rtp_t *rtp_session, uint32_t ssrc) |
| 3455 | { |
| 3456 | rtp_session->remote_ssrc = ssrc; |
| 3457 | |
| 3458 | return SWITCH_STATUS_SUCCESS; |
| 3459 | } |
| 3460 | |
| 3461 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_create(switch_rtp_t **new_rtp_session, |
| 3462 | switch_payload_t payload, |
| 3463 | uint32_t samples_per_interval, |
| 3464 | uint32_t ms_per_packet, |
| 3465 | switch_rtp_flag_t flags[SWITCH_RTP_FLAG_INVALID], char *timer_name, const char **err, switch_memory_pool_t *pool) |
| 3466 | { |
| 3467 | switch_rtp_t *rtp_session = NULL((void*)0); |
| 3468 | switch_core_session_t *session = switch_core_memory_pool_get_data(pool, "__session"); |
| 3469 | switch_channel_t *channel = NULL((void*)0); |
| 3470 | |
| 3471 | if (session) channel = switch_core_session_get_channel(session); |
| 3472 | |
| 3473 | *new_rtp_session = NULL((void*)0); |
| 3474 | |
| 3475 | if (samples_per_interval > SWITCH_RTP_MAX_BUF_LEN16384) { |
| 3476 | *err = "Packet Size Too Large!"; |
| 3477 | return SWITCH_STATUS_FALSE; |
| 3478 | } |
| 3479 | |
| 3480 | if (!(rtp_session = switch_core_alloc(pool, sizeof(*rtp_session))switch_core_perform_alloc(pool, sizeof(*rtp_session), "src/switch_rtp.c" , (const char *)__func__, 3480))) { |
| 3481 | *err = "Memory Error!"; |
| 3482 | return SWITCH_STATUS_MEMERR; |
| 3483 | } |
| 3484 | |
| 3485 | rtp_session->pool = pool; |
| 3486 | rtp_session->te = 101; |
| 3487 | rtp_session->recv_te = 101; |
| 3488 | rtp_session->session = session; |
| 3489 | |
| 3490 | switch_mutex_init(&rtp_session->flag_mutex, SWITCH_MUTEX_NESTED0x1, pool); |
| 3491 | switch_mutex_init(&rtp_session->read_mutex, SWITCH_MUTEX_NESTED0x1, pool); |
| 3492 | switch_mutex_init(&rtp_session->write_mutex, SWITCH_MUTEX_NESTED0x1, pool); |
| 3493 | switch_mutex_init(&rtp_session->dtmf_data.dtmf_mutex, SWITCH_MUTEX_NESTED0x1, pool); |
| 3494 | switch_queue_create(&rtp_session->dtmf_data.dtmf_queue, 100, rtp_session->pool); |
| 3495 | switch_queue_create(&rtp_session->dtmf_data.dtmf_inqueue, 100, rtp_session->pool); |
| 3496 | |
| 3497 | switch_rtp_set_flags(rtp_session, flags); |
| 3498 | |
| 3499 | /* for from address on recvfrom calls */ |
| 3500 | switch_sockaddr_create(&rtp_session->from_addr, pool); |
| 3501 | |
| 3502 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 3503 | switch_sockaddr_create(&rtp_session->rtcp_from_addr, pool); |
| 3504 | } |
| 3505 | rtp_session->seq = (uint16_t) rand(); |
| 3506 | rtp_session->ssrc = (uint32_t) ((intptr_t) rtp_session + (uint32_t) switch_epoch_time_now(NULL((void*)0))); |
| 3507 | |
| 3508 | rtp_session->stats.inbound.R = 100.0; |
| 3509 | rtp_session->stats.inbound.mos = 4.5; |
| 3510 | rtp_session->send_msg.header.ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 3511 | rtp_session->send_msg.header.ts = 0; |
| 3512 | rtp_session->send_msg.header.m = 0; |
| 3513 | rtp_session->send_msg.header.pt = (switch_payload_t) htonl(payload)(__extension__ ({ unsigned int __v, __x = (payload); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 3514 | rtp_session->send_msg.header.version = 2; |
| 3515 | rtp_session->send_msg.header.p = 0; |
| 3516 | rtp_session->send_msg.header.x = 0; |
| 3517 | rtp_session->send_msg.header.cc = 0; |
| 3518 | |
| 3519 | rtp_session->recv_msg.header.ssrc = 0; |
| 3520 | rtp_session->recv_msg.header.ts = 0; |
| 3521 | rtp_session->recv_msg.header.seq = 0; |
| 3522 | rtp_session->recv_msg.header.m = 0; |
| 3523 | rtp_session->recv_msg.header.pt = (switch_payload_t) htonl(payload)(__extension__ ({ unsigned int __v, __x = (payload); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 3524 | rtp_session->recv_msg.header.version = 2; |
| 3525 | rtp_session->recv_msg.header.p = 0; |
| 3526 | rtp_session->recv_msg.header.x = 0; |
| 3527 | rtp_session->recv_msg.header.cc = 0; |
| 3528 | |
| 3529 | rtp_session->payload = payload; |
| 3530 | |
| 3531 | switch_rtp_set_interval(rtp_session, ms_per_packet, samples_per_interval); |
| 3532 | rtp_session->conf_samples_per_interval = samples_per_interval; |
| 3533 | |
| 3534 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && zstr(timer_name)_zstr(timer_name)) { |
| 3535 | timer_name = "soft"; |
| 3536 | } |
| 3537 | |
| 3538 | if (!zstr(timer_name)_zstr(timer_name) && !strcasecmp(timer_name, "none")) { |
| 3539 | timer_name = NULL((void*)0); |
| 3540 | } |
| 3541 | |
| 3542 | if (!zstr(timer_name)_zstr(timer_name)) { |
| 3543 | rtp_session->timer_name = switch_core_strdup(pool, timer_name)switch_core_perform_strdup(pool, timer_name, "src/switch_rtp.c" , (const char *)__func__, 3543); |
| 3544 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER); |
| 3545 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 3546 | |
| 3547 | if (switch_core_timer_init(&rtp_session->timer, timer_name, ms_per_packet / 1000, samples_per_interval, pool) == SWITCH_STATUS_SUCCESS) { |
| 3548 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3548, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, |
| 3549 | "Starting timer [%s] %d bytes per %dms\n", timer_name, samples_per_interval, ms_per_packet / 1000); |
| 3550 | } else { |
| 3551 | memset(&rtp_session->timer, 0, sizeof(rtp_session->timer)); |
| 3552 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3552, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, |
| 3553 | "Error Starting timer [%s] %d bytes per %dms, async RTP disabled\n", timer_name, samples_per_interval, ms_per_packet / 1000); |
| 3554 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER); |
| 3555 | } |
| 3556 | } else { |
| 3557 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3557, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Not using a timer\n"); |
| 3558 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER); |
| 3559 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 3560 | } |
| 3561 | |
| 3562 | |
| 3563 | if (channel) { |
| 3564 | switch_channel_set_private(channel, "__rtcp_audio_rtp_session", rtp_session); |
| 3565 | } |
| 3566 | |
| 3567 | #ifdef ENABLE_ZRTP |
| 3568 | if (zrtp_on && session && channel && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 3569 | switch_rtp_t *master_rtp_session = NULL((void*)0); |
| 3570 | |
| 3571 | int initiator = 0; |
| 3572 | const char *zrtp_enabled = switch_channel_get_variable(channel, "zrtp_secure_media")switch_channel_get_variable_dup(channel, "zrtp_secure_media", SWITCH_TRUE, -1); |
| 3573 | int srtp_enabled = switch_channel_test_flag(channel, CF_SECURE); |
| 3574 | |
| 3575 | if (srtp_enabled && switch_true(zrtp_enabled)) { |
| 3576 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3576, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, |
| 3577 | "You can not have ZRTP and SRTP enabled simultaneously, ZRTP will be disabled for this call!\n"); |
| 3578 | switch_channel_set_variable(channel, "zrtp_secure_media", NULL)switch_channel_set_variable_var_check(channel, "zrtp_secure_media" , ((void*)0), SWITCH_TRUE); |
| 3579 | zrtp_enabled = NULL((void*)0); |
| 3580 | } |
| 3581 | |
| 3582 | |
| 3583 | if (switch_true(zrtp_enabled)) { |
| 3584 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 3585 | switch_channel_set_private(channel, "__zrtp_video_rtp_session", rtp_session); |
| 3586 | master_rtp_session = switch_channel_get_private(channel, "__zrtp_audio_rtp_session"); |
| 3587 | } else { |
| 3588 | switch_channel_set_private(channel, "__zrtp_audio_rtp_session", rtp_session); |
| 3589 | master_rtp_session = rtp_session; |
| 3590 | } |
| 3591 | |
| 3592 | |
| 3593 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { |
| 3594 | initiator = 1; |
| 3595 | } |
| 3596 | |
| 3597 | if (rtp_session == master_rtp_session) { |
| 3598 | rtp_session->zrtp_profile = switch_core_alloc(rtp_session->pool, sizeof(*rtp_session->zrtp_profile))switch_core_perform_alloc(rtp_session->pool, sizeof(*rtp_session ->zrtp_profile), "src/switch_rtp.c", (const char *)__func__ , 3598); |
| 3599 | zrtp_profile_defaults(rtp_session->zrtp_profile, zrtp_global); |
| 3600 | |
| 3601 | rtp_session->zrtp_profile->allowclear = 0; |
| 3602 | rtp_session->zrtp_profile->disclose_bit = 0; |
| 3603 | rtp_session->zrtp_profile->cache_ttl = (uint32_t) -1; |
| 3604 | |
| 3605 | if (zrtp_status_ok != zrtp_session_init(zrtp_global, rtp_session->zrtp_profile, zid, initiator, &rtp_session->zrtp_session)) { |
| 3606 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3606, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error! zRTP INIT Failed\n"); |
| 3607 | zrtp_session_down(rtp_session->zrtp_session); |
| 3608 | rtp_session->zrtp_session = NULL((void*)0); |
| 3609 | goto end; |
| 3610 | } |
| 3611 | |
| 3612 | zrtp_session_set_userdata(rtp_session->zrtp_session, session); |
| 3613 | |
| 3614 | |
| 3615 | if (zrtp_status_ok != zrtp_stream_attach(master_rtp_session->zrtp_session, &rtp_session->zrtp_stream)) { |
| 3616 | abort(); |
| 3617 | } |
| 3618 | |
| 3619 | zrtp_stream_set_userdata(rtp_session->zrtp_stream, rtp_session); |
| 3620 | |
| 3621 | if (switch_true(switch_channel_get_variable(channel, "zrtp_enrollment")switch_channel_get_variable_dup(channel, "zrtp_enrollment", SWITCH_TRUE , -1))) { |
| 3622 | zrtp_stream_registration_start(rtp_session->zrtp_stream, rtp_session->ssrc); |
| 3623 | } else { |
| 3624 | zrtp_stream_start(rtp_session->zrtp_stream, rtp_session->ssrc); |
| 3625 | } |
| 3626 | } |
| 3627 | |
| 3628 | } |
| 3629 | } |
| 3630 | |
| 3631 | end: |
| 3632 | |
| 3633 | #endif |
| 3634 | |
| 3635 | /* Jitter */ |
| 3636 | rtp_session->stats.inbound.last_proc_time = switch_time_now() / 1000; |
| 3637 | rtp_session->stats.inbound.jitter_n = 0; |
| 3638 | rtp_session->stats.inbound.jitter_add = 0; |
| 3639 | rtp_session->stats.inbound.jitter_addsq = 0; |
| 3640 | rtp_session->stats.inbound.min_variance = 0; |
| 3641 | rtp_session->stats.inbound.max_variance = 0; |
| 3642 | |
| 3643 | /* Burst and Packet Loss */ |
| 3644 | rtp_session->stats.inbound.lossrate = 0; |
| 3645 | rtp_session->stats.inbound.burstrate = 0; |
| 3646 | memset(rtp_session->stats.inbound.loss, 0, sizeof(rtp_session->stats.inbound.loss)); |
| 3647 | rtp_session->stats.inbound.last_loss = 0; |
| 3648 | rtp_session->stats.inbound.last_processed_seq = -1; |
| 3649 | |
| 3650 | rtp_session->ready = 1; |
| 3651 | *new_rtp_session = rtp_session; |
| 3652 | |
| 3653 | return SWITCH_STATUS_SUCCESS; |
| 3654 | } |
| 3655 | |
| 3656 | SWITCH_DECLARE(switch_rtp_t *)__attribute__((visibility("default"))) switch_rtp_t * switch_rtp_new(const char *rx_host, |
| 3657 | switch_port_t rx_port, |
| 3658 | const char *tx_host, |
| 3659 | switch_port_t tx_port, |
| 3660 | switch_payload_t payload, |
| 3661 | uint32_t samples_per_interval, |
| 3662 | uint32_t ms_per_packet, |
| 3663 | switch_rtp_flag_t flags[SWITCH_RTP_FLAG_INVALID], char *timer_name, const char **err, switch_memory_pool_t *pool) |
| 3664 | { |
| 3665 | switch_rtp_t *rtp_session = NULL((void*)0); |
| 3666 | |
| 3667 | if (zstr(rx_host)_zstr(rx_host)) { |
| 3668 | *err = "Missing local host"; |
| 3669 | goto end; |
| 3670 | } |
| 3671 | |
| 3672 | if (!rx_port) { |
| 3673 | *err = "Missing local port"; |
| 3674 | goto end; |
| 3675 | } |
| 3676 | |
| 3677 | if (zstr(tx_host)_zstr(tx_host)) { |
| 3678 | *err = "Missing remote host"; |
| 3679 | goto end; |
| 3680 | } |
| 3681 | |
| 3682 | if (!tx_port) { |
| 3683 | *err = "Missing remote port"; |
| 3684 | goto end; |
| 3685 | } |
| 3686 | |
| 3687 | if (switch_rtp_create(&rtp_session, payload, samples_per_interval, ms_per_packet, flags, timer_name, err, pool) != SWITCH_STATUS_SUCCESS) { |
| 3688 | goto end; |
| 3689 | } |
| 3690 | |
| 3691 | switch_mutex_lock(rtp_session->flag_mutex); |
| 3692 | |
| 3693 | if (switch_rtp_set_local_address(rtp_session, rx_host, rx_port, err) != SWITCH_STATUS_SUCCESS) { |
| 3694 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 3695 | rtp_session = NULL((void*)0); |
| 3696 | goto end; |
| 3697 | } |
| 3698 | |
| 3699 | if (switch_rtp_set_remote_address(rtp_session, tx_host, tx_port, 0, SWITCH_TRUE, err) != SWITCH_STATUS_SUCCESS) { |
| 3700 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 3701 | rtp_session = NULL((void*)0); |
| 3702 | goto end; |
| 3703 | } |
| 3704 | |
| 3705 | end: |
| 3706 | |
| 3707 | if (rtp_session) { |
| 3708 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 3709 | rtp_session->ready = 2; |
| 3710 | rtp_session->rx_host = switch_core_strdup(rtp_session->pool, rx_host)switch_core_perform_strdup(rtp_session->pool, rx_host, "src/switch_rtp.c" , (const char *)__func__, 3710); |
| 3711 | rtp_session->rx_port = rx_port; |
| 3712 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 3713 | } else { |
| 3714 | switch_rtp_release_port(rx_host, rx_port); |
| 3715 | } |
| 3716 | |
| 3717 | return rtp_session; |
| 3718 | } |
| 3719 | |
| 3720 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_telephony_event(switch_rtp_t *rtp_session, switch_payload_t te) |
| 3721 | { |
| 3722 | if (te > 95) { |
| 3723 | rtp_session->te = te; |
| 3724 | } |
| 3725 | } |
| 3726 | |
| 3727 | |
| 3728 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_telephony_recv_event(switch_rtp_t *rtp_session, switch_payload_t te) |
| 3729 | { |
| 3730 | if (te > 95) { |
| 3731 | rtp_session->recv_te = te; |
| 3732 | } |
| 3733 | } |
| 3734 | |
| 3735 | |
| 3736 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_cng_pt(switch_rtp_t *rtp_session, switch_payload_t pt) |
| 3737 | { |
| 3738 | rtp_session->cng_pt = pt; |
| 3739 | rtp_session->flags[SWITCH_RTP_FLAG_AUTO_CNG] = 1; |
| 3740 | } |
| 3741 | |
| 3742 | static void jb_callback(stfu_instance_t *i, void *udata) |
| 3743 | { |
| 3744 | switch_core_session_t *session = (switch_core_session_t *) udata; |
| 3745 | stfu_report_t r = { 0 }; |
| 3746 | |
| 3747 | stfu_n_report(i, &r); |
| 3748 | |
| 3749 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3749, (const char*)(session), SWITCH_LOG_DEBUG8, |
| 3750 | "%s JB REPORT:\nlen: %u\nin: %u\nclean: %u\ngood: %u\nbad: %u\njitter percent %0.2f\nmissing percent %0.2f\n\n", |
| 3751 | switch_core_session_get_name(session)switch_channel_get_name(switch_core_session_get_channel(session )), |
| 3752 | r.qlen, |
| 3753 | r.packet_in_count, |
| 3754 | r.clean_count, |
| 3755 | r.consecutive_good_count, |
| 3756 | r.consecutive_bad_count, |
| 3757 | r.period_jitter_percent, |
| 3758 | r.period_missing_percent |
| 3759 | ); |
| 3760 | |
| 3761 | } |
| 3762 | |
| 3763 | SWITCH_DECLARE(stfu_instance_t *)__attribute__((visibility("default"))) stfu_instance_t * switch_rtp_get_jitter_buffer(switch_rtp_t *rtp_session) |
| 3764 | { |
| 3765 | if (!switch_rtp_ready(rtp_session) || !rtp_session->jb) { |
| 3766 | return NULL((void*)0); |
| 3767 | } |
| 3768 | |
| 3769 | return rtp_session->jb; |
| 3770 | } |
| 3771 | |
| 3772 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_pause_jitter_buffer(switch_rtp_t *rtp_session, switch_bool_t pause) |
| 3773 | { |
| 3774 | |
| 3775 | if (!switch_rtp_ready(rtp_session) || !rtp_session->jb) { |
| 3776 | return SWITCH_STATUS_FALSE; |
| 3777 | } |
| 3778 | |
| 3779 | if (!!pause == !!rtp_session->pause_jb) { |
| 3780 | return SWITCH_STATUS_FALSE; |
| 3781 | } |
| 3782 | |
| 3783 | if (rtp_session->pause_jb && !pause) { |
| 3784 | stfu_n_reset(rtp_session->jb)_stfu_n_reset(rtp_session->jb, "src/switch_rtp.c", __FUNCTION__ , 3784); |
| 3785 | } |
| 3786 | |
| 3787 | rtp_session->pause_jb = pause ? 1 : 0; |
| 3788 | |
| 3789 | return SWITCH_STATUS_SUCCESS; |
| 3790 | } |
| 3791 | |
| 3792 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_deactivate_jitter_buffer(switch_rtp_t *rtp_session) |
| 3793 | { |
| 3794 | |
| 3795 | if (!switch_rtp_ready(rtp_session) || !rtp_session->jb) { |
| 3796 | return SWITCH_STATUS_FALSE; |
| 3797 | } |
| 3798 | |
| 3799 | rtp_session->flags[SWITCH_RTP_FLAG_KILL_JB]++; |
| 3800 | |
| 3801 | return SWITCH_STATUS_SUCCESS; |
| 3802 | } |
| 3803 | |
| 3804 | static void jb_logger(const char *file, const char *func, int line, int level, const char *fmt, ...) |
| 3805 | { |
| 3806 | int ret; |
| 3807 | char *data; |
| 3808 | va_list ap; |
| 3809 | |
| 3810 | va_start(ap, fmt)__builtin_va_start(ap, fmt); |
| 3811 | ret = switch_vasprintf(&data, fmt, ap); |
| 3812 | if (ret != -1) { |
| 3813 | switch_log_printf(SWITCH_CHANNEL_ID_LOG_CLEAN, file, func, line, NULL((void*)0), SWITCH_LOG_CONSOLE, "%d: %s", line, data); |
| 3814 | free(data); |
| 3815 | } |
| 3816 | |
| 3817 | //switch_log_printf(SWITCH_CHANNEL_ID_LOG_CLEAN, file, func, line, NULL, level, fmt, ap); |
| 3818 | va_end(ap)__builtin_va_end(ap); |
| 3819 | } |
| 3820 | |
| 3821 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_debug_jitter_buffer(switch_rtp_t *rtp_session, const char *name) |
| 3822 | { |
| 3823 | |
| 3824 | if (!switch_rtp_ready(rtp_session) || !rtp_session->jb) { |
| 3825 | return SWITCH_STATUS_FALSE; |
| 3826 | } |
| 3827 | |
| 3828 | stfu_n_debug(rtp_session->jb, name); |
| 3829 | stfu_global_set_logger(jb_logger); |
| 3830 | |
| 3831 | return SWITCH_STATUS_SUCCESS; |
| 3832 | } |
| 3833 | |
| 3834 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_activate_jitter_buffer(switch_rtp_t *rtp_session, |
| 3835 | uint32_t queue_frames, |
| 3836 | uint32_t max_queue_frames, |
| 3837 | uint32_t samples_per_packet, |
| 3838 | uint32_t samples_per_second, |
| 3839 | uint32_t max_drift) |
| 3840 | { |
| 3841 | |
| 3842 | if (!switch_rtp_ready(rtp_session)) { |
| 3843 | return SWITCH_STATUS_FALSE; |
| 3844 | } |
| 3845 | |
| 3846 | if (queue_frames < 1) { |
| 3847 | queue_frames = 3; |
| 3848 | } |
| 3849 | |
| 3850 | if (max_queue_frames < queue_frames) { |
| 3851 | max_queue_frames = queue_frames * 3; |
| 3852 | } |
| 3853 | |
| 3854 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 3855 | |
| 3856 | if (rtp_session->jb) { |
| 3857 | stfu_n_destroy(&rtp_session->jb); |
| 3858 | } |
| 3859 | |
| 3860 | rtp_session->jb = stfu_n_init(queue_frames, max_queue_frames ? max_queue_frames : 50, samples_per_packet, samples_per_second, max_drift); |
| 3861 | |
| 3862 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 3863 | |
| 3864 | if (rtp_session->jb) { |
| 3865 | |
| 3866 | stfu_n_call_me(rtp_session->jb, jb_callback, rtp_session->session); |
| 3867 | |
| 3868 | return SWITCH_STATUS_SUCCESS; |
| 3869 | } |
| 3870 | |
| 3871 | return SWITCH_STATUS_FALSE; |
| 3872 | } |
| 3873 | |
| 3874 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_activate_rtcp(switch_rtp_t *rtp_session, int send_rate, switch_port_t remote_port, switch_bool_t mux) |
| 3875 | { |
| 3876 | const char *err = NULL((void*)0); |
| 3877 | |
| 3878 | if (!rtp_session->ms_per_packet) { |
| 3879 | return SWITCH_STATUS_FALSE; |
| 3880 | } |
| 3881 | |
| 3882 | rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] = 1; |
| 3883 | |
| 3884 | if (!(rtp_session->remote_rtcp_port = remote_port)) { |
| 3885 | rtp_session->remote_rtcp_port = rtp_session->remote_port + 1; |
| 3886 | } |
| 3887 | |
| 3888 | if (mux) { |
| 3889 | rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]++; |
| 3890 | } |
| 3891 | |
| 3892 | |
| 3893 | if (send_rate == -1) { |
| 3894 | |
| 3895 | rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] = 1; |
| 3896 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3896, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "RTCP passthru enabled. Remote Port: %d\n", rtp_session->remote_rtcp_port); |
| 3897 | } else { |
| 3898 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3898, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "RTCP send rate is: %d and packet rate is: %d Remote Port: %d\n", send_rate, rtp_session->ms_per_packet, rtp_session->remote_rtcp_port); |
| 3899 | |
| 3900 | rtp_session->rtcp_interval = send_rate; |
| 3901 | rtp_session->rtcp_send_rate = (uint16_t)(send_rate/1000); |
| 3902 | rtp_session->next_rtcp_send = switch_time_now() + (rtp_session->rtcp_interval * 1000); |
| 3903 | } |
| 3904 | |
| 3905 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 3906 | |
| 3907 | if (switch_sockaddr_info_get(&rtp_session->rtcp_remote_addr, rtp_session->eff_remote_host_str, SWITCH_UNSPEC0, |
| 3908 | rtp_session->remote_rtcp_port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || !rtp_session->rtcp_remote_addr) { |
| 3909 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3909, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "RTCP MUX Remote Address Error!"); |
| 3910 | return SWITCH_STATUS_FALSE; |
| 3911 | } |
| 3912 | |
| 3913 | rtp_session->rtcp_local_addr = rtp_session->local_addr; |
| 3914 | rtp_session->rtcp_from_addr = rtp_session->from_addr; |
| 3915 | rtp_session->rtcp_sock_input = rtp_session->sock_input; |
| 3916 | rtp_session->rtcp_sock_output = rtp_session->sock_output; |
| 3917 | |
| 3918 | rtp_session->rtcp_recv_msg_p = (rtcp_msg_t *) &rtp_session->recv_msg; |
| 3919 | |
| 3920 | return enable_remote_rtcp_socket(rtp_session, &err); |
| 3921 | } else { |
| 3922 | rtp_session->rtcp_recv_msg_p = (rtcp_msg_t *) &rtp_session->rtcp_recv_msg; |
| 3923 | } |
| 3924 | |
| 3925 | return enable_local_rtcp_socket(rtp_session, &err) || enable_remote_rtcp_socket(rtp_session, &err); |
| 3926 | |
| 3927 | } |
| 3928 | |
| 3929 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_activate_ice(switch_rtp_t *rtp_session, char *login, char *rlogin, |
| 3930 | const char *password, const char *rpassword, ice_proto_t proto, |
| 3931 | switch_core_media_ice_type_t type, ice_t *ice_params) |
| 3932 | { |
| 3933 | char ice_user[80]; |
| 3934 | char user_ice[80]; |
| 3935 | char luser_ice[80]; |
| 3936 | switch_rtp_ice_t *ice; |
| 3937 | char *host = NULL((void*)0); |
| 3938 | switch_port_t port = 0; |
| 3939 | char bufc[30]; |
| 3940 | |
| 3941 | |
| 3942 | if (proto == IPR_RTP) { |
| 3943 | ice = &rtp_session->ice; |
| 3944 | } else { |
| 3945 | ice = &rtp_session->rtcp_ice; |
| 3946 | } |
| 3947 | |
| 3948 | ice->proto = proto; |
| 3949 | |
| 3950 | if ((type & ICE_VANILLA)) { |
| 3951 | switch_snprintf(ice_user, sizeof(ice_user), "%s:%s", login, rlogin); |
| 3952 | switch_snprintf(user_ice, sizeof(user_ice), "%s:%s", rlogin, login); |
| 3953 | switch_snprintf(luser_ice, sizeof(user_ice), "%s%s", rlogin, login); |
| 3954 | ice->ready = ice->rready = 0; |
| 3955 | } else { |
| 3956 | switch_snprintf(ice_user, sizeof(ice_user), "%s%s", login, rlogin); |
| 3957 | switch_snprintf(user_ice, sizeof(user_ice), "%s%s", rlogin, login); |
| 3958 | ice->ready = ice->rready = 1; |
| 3959 | } |
| 3960 | |
| 3961 | ice->ice_user = switch_core_strdup(rtp_session->pool, ice_user)switch_core_perform_strdup(rtp_session->pool, ice_user, "src/switch_rtp.c" , (const char *)__func__, 3961); |
| 3962 | ice->user_ice = switch_core_strdup(rtp_session->pool, user_ice)switch_core_perform_strdup(rtp_session->pool, user_ice, "src/switch_rtp.c" , (const char *)__func__, 3962); |
| 3963 | ice->luser_ice = switch_core_strdup(rtp_session->pool, luser_ice)switch_core_perform_strdup(rtp_session->pool, luser_ice, "src/switch_rtp.c" , (const char *)__func__, 3963); |
| 3964 | ice->type = type; |
| 3965 | ice->ice_params = ice_params; |
| 3966 | ice->pass = ""; |
| 3967 | ice->rpass = ""; |
| 3968 | ice->next_run = switch_micro_time_now(); |
| 3969 | |
| 3970 | if (password) { |
| 3971 | ice->pass = switch_core_strdup(rtp_session->pool, password)switch_core_perform_strdup(rtp_session->pool, password, "src/switch_rtp.c" , (const char *)__func__, 3971); |
| 3972 | } |
| 3973 | |
| 3974 | if (rpassword) { |
| 3975 | ice->rpass = switch_core_strdup(rtp_session->pool, rpassword)switch_core_perform_strdup(rtp_session->pool, rpassword, "src/switch_rtp.c" , (const char *)__func__, 3975); |
| 3976 | } |
| 3977 | |
| 3978 | if ((ice->type & ICE_VANILLA) && ice->ice_params) { |
| 3979 | host = ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_addr; |
| 3980 | port = ice->ice_params->cands[ice->ice_params->chosen[ice->proto]][ice->proto].con_port; |
| 3981 | |
| 3982 | if (!host || !port || switch_sockaddr_info_get(&ice->addr, host, SWITCH_UNSPEC0, port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || !ice->addr) { |
| 3983 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3983, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error setting remote host!\n"); |
| 3984 | return SWITCH_STATUS_FALSE; |
| 3985 | } |
| 3986 | } else { |
| 3987 | if (proto == IPR_RTP) { |
| 3988 | ice->addr = rtp_session->remote_addr; |
| 3989 | } else { |
| 3990 | ice->addr = rtp_session->rtcp_remote_addr; |
| 3991 | } |
| 3992 | |
| 3993 | host = (char *)switch_get_addr(bufc, sizeof(bufc), ice->addr); |
| 3994 | port = switch_sockaddr_get_port(ice->addr); |
| 3995 | } |
| 3996 | |
| 3997 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 3997, (const char*)(rtp_session->session), SWITCH_LOG_NOTICE, "Activating %s %s ICE: %s %s:%d\n", |
| 3998 | proto == IPR_RTP ? "RTP" : "RTCP", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", ice_user, host, port); |
| 3999 | |
| 4000 | |
| 4001 | rtp_session->rtp_bugs |= RTP_BUG_ACCEPT_ANY_PACKETS; |
| 4002 | |
| 4003 | |
| 4004 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 4005 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO_BREAK] = 1; |
| 4006 | switch_rtp_break(rtp_session); |
| 4007 | } |
| 4008 | |
| 4009 | return SWITCH_STATUS_SUCCESS; |
| 4010 | } |
| 4011 | |
| 4012 | |
| 4013 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_flush(switch_rtp_t *rtp_session) |
| 4014 | { |
| 4015 | if (!switch_rtp_ready(rtp_session)) { |
| 4016 | return; |
| 4017 | } |
| 4018 | |
| 4019 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 4020 | } |
| 4021 | |
| 4022 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_video_refresh(switch_rtp_t *rtp_session) |
| 4023 | { |
| 4024 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && |
| 4025 | (rtp_session->ice.ice_user || rtp_session->flags[SWITCH_RTP_FLAG_FIR] || rtp_session->flags[SWITCH_RTP_FLAG_PLI])) { |
| 4026 | if (!rtp_session->fir_countdown) { |
| 4027 | rtp_session->fir_countdown = FIR_COUNTDOWN50; |
| 4028 | } |
| 4029 | } |
| 4030 | } |
| 4031 | |
| 4032 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_break(switch_rtp_t *rtp_session) |
| 4033 | { |
| 4034 | if (!switch_rtp_ready(rtp_session)) { |
| 4035 | return; |
| 4036 | } |
| 4037 | |
| 4038 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 4039 | int ret = 1; |
| 4040 | |
| 4041 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO_BREAK]) { |
| 4042 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO_BREAK] = 0; |
| 4043 | ret = 0; |
| 4044 | } else if (rtp_session->session) { |
| 4045 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 4046 | if (switch_channel_test_flag(channel, CF_VIDEO_BREAK)) { |
| 4047 | switch_channel_clear_flag(channel, CF_VIDEO_BREAK); |
| 4048 | ret = 0; |
| 4049 | } |
| 4050 | } |
| 4051 | |
| 4052 | if (ret) return; |
| 4053 | |
| 4054 | switch_rtp_video_refresh(rtp_session); |
| 4055 | } |
| 4056 | |
| 4057 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4058 | rtp_session->flags[SWITCH_RTP_FLAG_BREAK] = 1; |
| 4059 | |
| 4060 | if (rtp_session->flags[SWITCH_RTP_FLAG_NOBLOCK]) { |
| 4061 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4062 | return; |
| 4063 | } |
| 4064 | |
| 4065 | if (rtp_session->sock_input) { |
| 4066 | ping_socket(rtp_session); |
| 4067 | } |
| 4068 | |
| 4069 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4070 | } |
| 4071 | |
| 4072 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_kill_socket(switch_rtp_t *rtp_session) |
| 4073 | { |
| 4074 | switch_assert(rtp_session != NULL)((rtp_session != ((void*)0)) ? (void) (0) : __assert_fail ("rtp_session != ((void*)0)" , "src/switch_rtp.c", 4074, __PRETTY_FUNCTION__)); |
| 4075 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4076 | if (rtp_session->flags[SWITCH_RTP_FLAG_IO]) { |
| 4077 | rtp_session->flags[SWITCH_RTP_FLAG_IO] = 0; |
| 4078 | if (rtp_session->sock_input) { |
| 4079 | ping_socket(rtp_session); |
| 4080 | switch_socket_shutdown(rtp_session->sock_input, SWITCH_SHUTDOWN_READWRITE); |
| 4081 | } |
| 4082 | if (rtp_session->sock_output && rtp_session->sock_output != rtp_session->sock_input) { |
| 4083 | switch_socket_shutdown(rtp_session->sock_output, SWITCH_SHUTDOWN_READWRITE); |
| 4084 | } |
| 4085 | |
| 4086 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 4087 | if (rtp_session->rtcp_sock_input) { |
| 4088 | ping_socket(rtp_session); |
| 4089 | switch_socket_shutdown(rtp_session->rtcp_sock_input, SWITCH_SHUTDOWN_READWRITE); |
| 4090 | } |
| 4091 | if (rtp_session->rtcp_sock_output && rtp_session->rtcp_sock_output != rtp_session->rtcp_sock_input) { |
| 4092 | switch_socket_shutdown(rtp_session->rtcp_sock_output, SWITCH_SHUTDOWN_READWRITE); |
| 4093 | } |
| 4094 | } |
| 4095 | } |
| 4096 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4097 | } |
| 4098 | |
| 4099 | SWITCH_DECLARE(uint8_t)__attribute__((visibility("default"))) uint8_t switch_rtp_ready(switch_rtp_t *rtp_session) |
| 4100 | { |
| 4101 | uint8_t ret; |
| 4102 | |
| 4103 | if (!rtp_session || !rtp_session->flag_mutex || rtp_session->flags[SWITCH_RTP_FLAG_SHUTDOWN]) { |
| 4104 | return 0; |
| 4105 | } |
| 4106 | |
| 4107 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4108 | ret = (rtp_session->flags[SWITCH_RTP_FLAG_IO] && rtp_session->sock_input && rtp_session->sock_output && rtp_session->remote_addr |
| 4109 | && rtp_session->ready == 2) ? 1 : 0; |
| 4110 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4111 | |
| 4112 | return ret; |
| 4113 | } |
| 4114 | |
| 4115 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_destroy(switch_rtp_t **rtp_session) |
| 4116 | { |
| 4117 | void *pop; |
| 4118 | switch_socket_t *sock; |
| 4119 | #ifdef ENABLE_SRTP1 |
| 4120 | int x; |
| 4121 | #endif |
| 4122 | |
| 4123 | if (!rtp_session || !*rtp_session || !(*rtp_session)->ready) { |
| 4124 | return; |
| 4125 | } |
| 4126 | |
| 4127 | (*rtp_session)->flags[SWITCH_RTP_FLAG_SHUTDOWN] = 1; |
| 4128 | |
| 4129 | READ_INC((*rtp_session))switch_mutex_lock((*rtp_session)->read_mutex); (*rtp_session )->reading++; |
| 4130 | WRITE_INC((*rtp_session))switch_mutex_lock((*rtp_session)->write_mutex); (*rtp_session )->writing++; |
| 4131 | |
| 4132 | (*rtp_session)->ready = 0; |
| 4133 | |
| 4134 | READ_DEC((*rtp_session))switch_mutex_unlock((*rtp_session)->read_mutex); (*rtp_session )->reading--; |
| 4135 | WRITE_DEC((*rtp_session))switch_mutex_unlock((*rtp_session)->write_mutex); (*rtp_session )->writing--; |
| 4136 | |
| 4137 | do_mos(*rtp_session, SWITCH_TRUE); |
| 4138 | |
| 4139 | switch_mutex_lock((*rtp_session)->flag_mutex); |
| 4140 | |
| 4141 | switch_rtp_kill_socket(*rtp_session); |
| 4142 | |
| 4143 | while (switch_queue_trypop((*rtp_session)->dtmf_data.dtmf_inqueue, &pop) == SWITCH_STATUS_SUCCESS) { |
| 4144 | switch_safe_free(pop)if (pop) {free(pop);pop=((void*)0);}; |
| 4145 | } |
| 4146 | |
| 4147 | while (switch_queue_trypop((*rtp_session)->dtmf_data.dtmf_queue, &pop) == SWITCH_STATUS_SUCCESS) { |
| 4148 | switch_safe_free(pop)if (pop) {free(pop);pop=((void*)0);}; |
| 4149 | } |
| 4150 | |
| 4151 | if ((*rtp_session)->jb) { |
| 4152 | stfu_n_destroy(&(*rtp_session)->jb); |
| 4153 | } |
| 4154 | |
| 4155 | if ((*rtp_session)->dtls && (*rtp_session)->dtls == (*rtp_session)->rtcp_dtls) { |
| 4156 | (*rtp_session)->rtcp_dtls = NULL((void*)0); |
| 4157 | } |
| 4158 | |
| 4159 | if ((*rtp_session)->dtls) { |
| 4160 | free_dtls(&(*rtp_session)->dtls); |
| 4161 | } |
| 4162 | |
| 4163 | if ((*rtp_session)->rtcp_dtls) { |
| 4164 | free_dtls(&(*rtp_session)->rtcp_dtls); |
| 4165 | } |
| 4166 | |
| 4167 | |
| 4168 | sock = (*rtp_session)->sock_input; |
| 4169 | (*rtp_session)->sock_input = NULL((void*)0); |
| 4170 | switch_socket_close(sock); |
| 4171 | |
| 4172 | if ((*rtp_session)->sock_output != sock) { |
| 4173 | sock = (*rtp_session)->sock_output; |
| 4174 | (*rtp_session)->sock_output = NULL((void*)0); |
| 4175 | switch_socket_close(sock); |
| 4176 | } |
| 4177 | |
| 4178 | if ((sock = (*rtp_session)->rtcp_sock_input)) { |
| 4179 | (*rtp_session)->rtcp_sock_input = NULL((void*)0); |
| 4180 | switch_socket_close(sock); |
| 4181 | |
| 4182 | if ((*rtp_session)->rtcp_sock_output && (*rtp_session)->rtcp_sock_output != sock) { |
| 4183 | if ((sock = (*rtp_session)->rtcp_sock_output)) { |
| 4184 | (*rtp_session)->rtcp_sock_output = NULL((void*)0); |
| 4185 | switch_socket_close(sock); |
| 4186 | } |
| 4187 | } |
| 4188 | } |
| 4189 | |
| 4190 | if ((*rtp_session)->flags[SWITCH_RTP_FLAG_VAD]) { |
| 4191 | switch_rtp_disable_vad(*rtp_session); |
| 4192 | } |
| 4193 | |
| 4194 | #ifdef ENABLE_SRTP1 |
| 4195 | if ((*rtp_session)->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 4196 | for(x = 0; x < 2; x++) { |
| 4197 | if ((*rtp_session)->send_ctx[x]) { |
| 4198 | srtp_dealloc((*rtp_session)->send_ctx[x]); |
| 4199 | (*rtp_session)->send_ctx[x] = NULL((void*)0); |
| 4200 | } |
| 4201 | } |
| 4202 | (*rtp_session)->flags[SWITCH_RTP_FLAG_SECURE_SEND] = 0; |
| 4203 | } |
| 4204 | |
| 4205 | if ((*rtp_session)->flags[SWITCH_RTP_FLAG_SECURE_RECV]) { |
| 4206 | for (x = 0; x < 2; x++) { |
| 4207 | if ((*rtp_session)->recv_ctx[x]) { |
| 4208 | srtp_dealloc((*rtp_session)->recv_ctx[x]); |
| 4209 | (*rtp_session)->recv_ctx[x] = NULL((void*)0); |
| 4210 | } |
| 4211 | } |
| 4212 | (*rtp_session)->flags[SWITCH_RTP_FLAG_SECURE_RECV] = 0; |
| 4213 | } |
| 4214 | #endif |
| 4215 | |
| 4216 | #ifdef ENABLE_ZRTP |
| 4217 | /* ZRTP */ |
| 4218 | if (zrtp_on && !(*rtp_session)->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 4219 | |
| 4220 | if ((*rtp_session)->zrtp_stream != NULL((void*)0)) { |
| 4221 | zrtp_stream_stop((*rtp_session)->zrtp_stream); |
| 4222 | } |
| 4223 | |
| 4224 | if ((*rtp_session)->flags[SWITCH_ZRTP_FLAG_SECURE_SEND]) { |
| 4225 | (*rtp_session)->flags[SWITCH_ZRTP_FLAG_SECURE_SEND] = 0; |
| 4226 | } |
| 4227 | |
| 4228 | if ((*rtp_session)->flags[SWITCH_ZRTP_FLAG_SECURE_RECV]) { |
| 4229 | (*rtp_session)->flags[SWITCH_ZRTP_FLAG_SECURE_RECV] = 0; |
| 4230 | } |
| 4231 | |
| 4232 | if ((*rtp_session)->zrtp_session) { |
| 4233 | zrtp_session_down((*rtp_session)->zrtp_session); |
| 4234 | (*rtp_session)->zrtp_session = NULL((void*)0); |
| 4235 | } |
| 4236 | } |
| 4237 | #endif |
| 4238 | if ((*rtp_session)->timer.timer_interface) { |
| 4239 | switch_core_timer_destroy(&(*rtp_session)->timer); |
| 4240 | } |
| 4241 | |
| 4242 | switch_rtp_release_port((*rtp_session)->rx_host, (*rtp_session)->rx_port); |
| 4243 | switch_mutex_unlock((*rtp_session)->flag_mutex); |
| 4244 | |
| 4245 | return; |
| 4246 | } |
| 4247 | |
| 4248 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_interdigit_delay(switch_rtp_t *rtp_session, uint32_t delay) |
| 4249 | { |
| 4250 | rtp_session->interdigit_delay = delay; |
| 4251 | } |
| 4252 | |
| 4253 | SWITCH_DECLARE(switch_socket_t *)__attribute__((visibility("default"))) switch_socket_t * switch_rtp_get_rtp_socket(switch_rtp_t *rtp_session) |
| 4254 | { |
| 4255 | return rtp_session->sock_input; |
| 4256 | } |
| 4257 | |
| 4258 | SWITCH_DECLARE(uint32_t)__attribute__((visibility("default"))) uint32_t switch_rtp_get_default_samples_per_interval(switch_rtp_t *rtp_session) |
| 4259 | { |
| 4260 | return rtp_session->samples_per_interval; |
| 4261 | } |
| 4262 | |
| 4263 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_default_payload(switch_rtp_t *rtp_session, switch_payload_t payload) |
| 4264 | { |
| 4265 | rtp_session->payload = payload; |
| 4266 | } |
| 4267 | |
| 4268 | SWITCH_DECLARE(uint32_t)__attribute__((visibility("default"))) uint32_t switch_rtp_get_default_payload(switch_rtp_t *rtp_session) |
| 4269 | { |
| 4270 | return rtp_session->payload; |
| 4271 | } |
| 4272 | |
| 4273 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_invalid_handler(switch_rtp_t *rtp_session, switch_rtp_invalid_handler_t on_invalid) |
| 4274 | { |
| 4275 | rtp_session->invalid_handler = on_invalid; |
| 4276 | } |
| 4277 | |
| 4278 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_flags(switch_rtp_t *rtp_session, switch_rtp_flag_t flags[SWITCH_RTP_FLAG_INVALID]) |
| 4279 | { |
| 4280 | int i; |
| 4281 | |
| 4282 | for(i = 0; i < SWITCH_RTP_FLAG_INVALID; i++) { |
| 4283 | if (flags[i]) { |
| 4284 | rtp_session->flags[i] = flags[i]; |
| 4285 | |
| 4286 | if (i == SWITCH_RTP_FLAG_AUTOADJ) { |
| 4287 | rtp_session->autoadj_window = 20; |
| 4288 | rtp_session->autoadj_threshold = 10; |
| 4289 | rtp_session->autoadj_tally = 0; |
| 4290 | if (rtp_session->session) { |
| 4291 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 4292 | const char *x = switch_channel_get_variable(channel, "rtp_auto_adjust_threshold")switch_channel_get_variable_dup(channel, "rtp_auto_adjust_threshold" , SWITCH_TRUE, -1); |
| 4293 | if (x && *x) { |
| 4294 | int xn = atoi(x); |
| 4295 | if (xn > 0 && xn <= 65535) { |
| 4296 | rtp_session->autoadj_window = xn*2; |
| 4297 | rtp_session->autoadj_threshold = xn; |
| 4298 | } |
| 4299 | } |
| 4300 | } |
| 4301 | rtp_flush_read_buffer(rtp_session, SWITCH_RTP_FLUSH_ONCE); |
| 4302 | } else if (i == SWITCH_RTP_FLAG_NOBLOCK && rtp_session->sock_input) { |
| 4303 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, TRUE(!0)); |
| 4304 | } |
| 4305 | } |
| 4306 | } |
| 4307 | } |
| 4308 | |
| 4309 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_clear_flags(switch_rtp_t *rtp_session, switch_rtp_flag_t flags[SWITCH_RTP_FLAG_INVALID]) |
| 4310 | { |
| 4311 | int i; |
| 4312 | |
| 4313 | for(i = 0; i < SWITCH_RTP_FLAG_INVALID; i++) { |
| 4314 | if (flags[i]) { |
| 4315 | rtp_session->flags[i] = 0; |
| 4316 | } |
| 4317 | } |
| 4318 | } |
| 4319 | |
| 4320 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_flag(switch_rtp_t *rtp_session, switch_rtp_flag_t flag) |
| 4321 | { |
| 4322 | |
| 4323 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4324 | rtp_session->flags[flag] = 1; |
| 4325 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4326 | |
| 4327 | if (flag == SWITCH_RTP_FLAG_DTMF_ON) { |
| 4328 | rtp_session->stats.inbound.last_processed_seq = 0; |
| 4329 | } else if (flag == SWITCH_RTP_FLAG_FLUSH) { |
| 4330 | reset_jitter_seq(rtp_session); |
| 4331 | } else if (flag == SWITCH_RTP_FLAG_AUTOADJ) { |
| 4332 | rtp_session->autoadj_window = 20; |
| 4333 | rtp_session->autoadj_threshold = 10; |
| 4334 | rtp_session->autoadj_tally = 0; |
| 4335 | if (rtp_session->session) { |
| 4336 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 4337 | const char *x = switch_channel_get_variable(channel, "rtp_auto_adjust_threshold")switch_channel_get_variable_dup(channel, "rtp_auto_adjust_threshold" , SWITCH_TRUE, -1); |
| 4338 | if (x && *x) { |
| 4339 | int xn = atoi(x); |
| 4340 | if (xn > 0 && xn <= 65535) { |
| 4341 | rtp_session->autoadj_window = xn*2; |
| 4342 | rtp_session->autoadj_threshold = xn; |
| 4343 | } |
| 4344 | } |
| 4345 | } |
| 4346 | rtp_flush_read_buffer(rtp_session, SWITCH_RTP_FLUSH_ONCE); |
| 4347 | if (rtp_session->jb) { |
| 4348 | stfu_n_reset(rtp_session->jb)_stfu_n_reset(rtp_session->jb, "src/switch_rtp.c", __FUNCTION__ , 4348); |
| 4349 | } |
| 4350 | } else if (flag == SWITCH_RTP_FLAG_NOBLOCK && rtp_session->sock_input) { |
| 4351 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, TRUE(!0)); |
| 4352 | } |
| 4353 | |
| 4354 | } |
| 4355 | |
| 4356 | SWITCH_DECLARE(uint32_t)__attribute__((visibility("default"))) uint32_t switch_rtp_test_flag(switch_rtp_t *rtp_session, switch_rtp_flag_t flags) |
| 4357 | { |
| 4358 | return (uint32_t) rtp_session->flags[flags]; |
| 4359 | } |
| 4360 | |
| 4361 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_clear_flag(switch_rtp_t *rtp_session, switch_rtp_flag_t flag) |
| 4362 | { |
| 4363 | |
| 4364 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4365 | rtp_session->flags[flag] = 0; |
| 4366 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4367 | |
| 4368 | if (flag == SWITCH_RTP_FLAG_DTMF_ON) { |
| 4369 | rtp_session->stats.inbound.last_processed_seq = 0; |
| 4370 | } else if (flag == SWITCH_RTP_FLAG_PAUSE) { |
| 4371 | reset_jitter_seq(rtp_session); |
| 4372 | } else if (flag == SWITCH_RTP_FLAG_NOBLOCK && rtp_session->sock_input) { |
| 4373 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, FALSE0); |
| 4374 | } |
| 4375 | } |
| 4376 | |
| 4377 | static void set_dtmf_delay(switch_rtp_t *rtp_session, uint32_t ms, uint32_t max_ms) |
| 4378 | { |
| 4379 | int upsamp, max_upsamp; |
| 4380 | |
| 4381 | |
| 4382 | if (!max_ms) max_ms = ms; |
| 4383 | |
| 4384 | upsamp = ms * (rtp_session->samples_per_second / 1000); |
| 4385 | max_upsamp = max_ms * (rtp_session->samples_per_second / 1000); |
| 4386 | |
| 4387 | rtp_session->queue_delay = upsamp; |
| 4388 | |
| 4389 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 4390 | rtp_session->max_next_write_samplecount = rtp_session->timer.samplecount + max_upsamp; |
| 4391 | rtp_session->next_write_samplecount = rtp_session->timer.samplecount + upsamp; |
| 4392 | rtp_session->last_write_ts += upsamp; |
| 4393 | } |
| 4394 | |
| 4395 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4395, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Queue digit delay of %dms\n", ms); |
| 4396 | } |
| 4397 | |
| 4398 | static void do_2833(switch_rtp_t *rtp_session) |
| 4399 | { |
| 4400 | switch_frame_flag_t flags = 0; |
| 4401 | uint32_t samples = rtp_session->samples_per_interval; |
| 4402 | |
| 4403 | if (!rtp_session->last_write_ts) { |
| 4404 | return; |
| 4405 | } |
| 4406 | |
| 4407 | if (rtp_session->dtmf_data.out_digit_dur > 0) { |
| 4408 | int x, loops = 1; |
| 4409 | |
| 4410 | rtp_session->dtmf_data.out_digit_sofar += samples; |
| 4411 | rtp_session->dtmf_data.out_digit_sub_sofar += samples; |
| 4412 | |
| 4413 | if (rtp_session->dtmf_data.out_digit_sub_sofar > 0xFFFF) { |
| 4414 | rtp_session->dtmf_data.out_digit_sub_sofar = samples; |
| 4415 | rtp_session->dtmf_data.timestamp_dtmf += 0xFFFF; |
| 4416 | } |
| 4417 | |
| 4418 | if (rtp_session->dtmf_data.out_digit_sofar >= rtp_session->dtmf_data.out_digit_dur) { |
| 4419 | rtp_session->dtmf_data.out_digit_packet[1] |= 0x80; |
| 4420 | loops = 3; |
| 4421 | } |
| 4422 | |
| 4423 | rtp_session->dtmf_data.out_digit_packet[2] = (unsigned char) (rtp_session->dtmf_data.out_digit_sub_sofar >> 8); |
| 4424 | rtp_session->dtmf_data.out_digit_packet[3] = (unsigned char) rtp_session->dtmf_data.out_digit_sub_sofar; |
| 4425 | |
| 4426 | for (x = 0; x < loops; x++) { |
| 4427 | switch_size_t wrote = switch_rtp_write_manual(rtp_session, |
| 4428 | rtp_session->dtmf_data.out_digit_packet, 4, 0, |
| 4429 | rtp_session->te, rtp_session->dtmf_data.timestamp_dtmf, &flags); |
| 4430 | |
| 4431 | rtp_session->stats.outbound.raw_bytes += wrote; |
| 4432 | rtp_session->stats.outbound.dtmf_packet_count++; |
| 4433 | |
| 4434 | if (loops == 1) { |
| 4435 | rtp_session->last_write_ts += samples; |
| 4436 | |
| 4437 | if (rtp_session->rtp_bugs & RTP_BUG_SONUS_SEND_INVALID_TIMESTAMP_2833) { |
| 4438 | rtp_session->dtmf_data.timestamp_dtmf = rtp_session->last_write_ts; |
| 4439 | } |
| 4440 | } |
| 4441 | |
| 4442 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4442, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Send %s packet for [%c] ts=%u dur=%d/%d/%d seq=%d lw=%u\n", |
| 4443 | loops == 1 ? "middle" : "end", rtp_session->dtmf_data.out_digit, |
| 4444 | rtp_session->dtmf_data.timestamp_dtmf, |
| 4445 | rtp_session->dtmf_data.out_digit_sofar, |
| 4446 | rtp_session->dtmf_data.out_digit_sub_sofar, rtp_session->dtmf_data.out_digit_dur, rtp_session->seq, rtp_session->last_write_ts); |
| 4447 | } |
| 4448 | |
| 4449 | if (loops != 1) { |
| 4450 | rtp_session->sending_dtmf = 0; |
| 4451 | rtp_session->need_mark = 1; |
| 4452 | |
| 4453 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 4454 | rtp_session->last_write_samplecount = rtp_session->timer.samplecount; |
| 4455 | } |
| 4456 | |
| 4457 | rtp_session->dtmf_data.out_digit_dur = 0; |
| 4458 | |
| 4459 | if (rtp_session->interdigit_delay) { |
| 4460 | set_dtmf_delay(rtp_session, rtp_session->interdigit_delay, rtp_session->interdigit_delay * 10); |
| 4461 | } |
| 4462 | |
| 4463 | return; |
| 4464 | } |
| 4465 | } |
| 4466 | |
| 4467 | if (!rtp_session->dtmf_data.out_digit_dur && rtp_session->dtmf_data.dtmf_queue && switch_queue_size(rtp_session->dtmf_data.dtmf_queue)) { |
| 4468 | void *pop; |
| 4469 | |
| 4470 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 4471 | if (rtp_session->timer.samplecount < rtp_session->next_write_samplecount) { |
| 4472 | return; |
| 4473 | } |
| 4474 | |
| 4475 | if (rtp_session->timer.samplecount >= rtp_session->max_next_write_samplecount) { |
| 4476 | rtp_session->queue_delay = 0; |
| 4477 | } |
| 4478 | |
| 4479 | } else if (rtp_session->queue_delay) { |
| 4480 | if (rtp_session->delay_samples >= rtp_session->samples_per_interval) { |
| 4481 | rtp_session->delay_samples -= rtp_session->samples_per_interval; |
| 4482 | } else { |
| 4483 | rtp_session->delay_samples = 0; |
| 4484 | } |
| 4485 | |
| 4486 | if (!rtp_session->delay_samples) { |
| 4487 | rtp_session->queue_delay = 0; |
| 4488 | } |
| 4489 | } |
| 4490 | |
| 4491 | if (rtp_session->queue_delay) { |
| 4492 | return; |
| 4493 | } |
| 4494 | |
| 4495 | |
| 4496 | if (!rtp_session->sending_dtmf) { |
| 4497 | rtp_session->sending_dtmf = 1; |
| 4498 | } |
| 4499 | |
| 4500 | if (switch_queue_trypop(rtp_session->dtmf_data.dtmf_queue, &pop) == SWITCH_STATUS_SUCCESS) { |
| 4501 | switch_dtmf_t *rdigit = pop; |
| 4502 | switch_size_t wrote; |
| 4503 | |
| 4504 | if (rdigit->digit == 'w') { |
| 4505 | set_dtmf_delay(rtp_session, 500, 0); |
| 4506 | free(rdigit); |
| 4507 | return; |
| 4508 | } |
| 4509 | |
| 4510 | if (rdigit->digit == 'W') { |
| 4511 | set_dtmf_delay(rtp_session, 1000, 0); |
| 4512 | free(rdigit); |
| 4513 | return; |
| 4514 | } |
| 4515 | |
| 4516 | |
| 4517 | |
| 4518 | memset(rtp_session->dtmf_data.out_digit_packet, 0, 4); |
| 4519 | rtp_session->dtmf_data.out_digit_sofar = samples; |
| 4520 | rtp_session->dtmf_data.out_digit_sub_sofar = samples; |
| 4521 | rtp_session->dtmf_data.out_digit_dur = rdigit->duration; |
| 4522 | rtp_session->dtmf_data.out_digit = rdigit->digit; |
| 4523 | rtp_session->dtmf_data.out_digit_packet[0] = (unsigned char) switch_char_to_rfc2833(rdigit->digit); |
| 4524 | rtp_session->dtmf_data.out_digit_packet[1] = 13; |
| 4525 | rtp_session->dtmf_data.out_digit_packet[2] = (unsigned char) (rtp_session->dtmf_data.out_digit_sub_sofar >> 8); |
| 4526 | rtp_session->dtmf_data.out_digit_packet[3] = (unsigned char) rtp_session->dtmf_data.out_digit_sub_sofar; |
| 4527 | |
| 4528 | |
| 4529 | rtp_session->dtmf_data.timestamp_dtmf = rtp_session->last_write_ts + samples; |
| 4530 | rtp_session->last_write_ts = rtp_session->dtmf_data.timestamp_dtmf; |
| 4531 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 0; |
| 4532 | |
| 4533 | wrote = switch_rtp_write_manual(rtp_session, |
| 4534 | rtp_session->dtmf_data.out_digit_packet, |
| 4535 | 4, |
| 4536 | rtp_session->rtp_bugs & RTP_BUG_CISCO_SKIP_MARK_BIT_2833 ? 0 : 1, |
| 4537 | rtp_session->te, rtp_session->dtmf_data.timestamp_dtmf, &flags); |
| 4538 | |
| 4539 | |
| 4540 | rtp_session->stats.outbound.raw_bytes += wrote; |
| 4541 | rtp_session->stats.outbound.dtmf_packet_count++; |
| 4542 | |
| 4543 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4543, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Send start packet for [%c] ts=%u dur=%d/%d/%d seq=%d lw=%u\n", |
| 4544 | rtp_session->dtmf_data.out_digit, |
| 4545 | rtp_session->dtmf_data.timestamp_dtmf, |
| 4546 | rtp_session->dtmf_data.out_digit_sofar, |
| 4547 | rtp_session->dtmf_data.out_digit_sub_sofar, rtp_session->dtmf_data.out_digit_dur, rtp_session->seq, rtp_session->last_write_ts); |
| 4548 | |
| 4549 | free(rdigit); |
| 4550 | } |
| 4551 | } |
| 4552 | } |
| 4553 | |
| 4554 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void rtp_flush_read_buffer(switch_rtp_t *rtp_session, switch_rtp_flush_t flush) |
| 4555 | { |
| 4556 | |
| 4557 | if (rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || |
| 4558 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] || |
| 4559 | rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 4560 | return; |
| 4561 | } |
| 4562 | |
| 4563 | |
| 4564 | if (switch_rtp_ready(rtp_session)) { |
| 4565 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 1; |
| 4566 | rtp_session->flags[SWITCH_RTP_FLAG_FLUSH] = 1; |
| 4567 | reset_jitter_seq(rtp_session); |
| 4568 | |
| 4569 | switch (flush) { |
| 4570 | case SWITCH_RTP_FLUSH_STICK: |
| 4571 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_STICKY_FLUSH); |
| 4572 | break; |
| 4573 | case SWITCH_RTP_FLUSH_UNSTICK: |
| 4574 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_STICKY_FLUSH); |
| 4575 | break; |
| 4576 | default: |
| 4577 | break; |
| 4578 | } |
| 4579 | } |
| 4580 | } |
| 4581 | |
| 4582 | static int jb_valid(switch_rtp_t *rtp_session) |
| 4583 | { |
| 4584 | if (rtp_session->ice.ice_user) { |
| 4585 | if (!rtp_session->ice.ready && rtp_session->ice.rready) { |
| 4586 | return 0; |
| 4587 | } |
| 4588 | } |
| 4589 | |
| 4590 | if (rtp_session->dtls && rtp_session->dtls->state != DS_READY) { |
| 4591 | return 0; |
| 4592 | } |
| 4593 | |
| 4594 | return 1; |
| 4595 | } |
| 4596 | |
| 4597 | |
| 4598 | static void do_flush(switch_rtp_t *rtp_session, int force) |
| 4599 | { |
| 4600 | int was_blocking = 0; |
| 4601 | switch_size_t bytes; |
| 4602 | uint32_t flushed = 0; |
| 4603 | |
| 4604 | if (!switch_rtp_ready(rtp_session)) { |
| 4605 | return; |
| 4606 | } |
| 4607 | reset_jitter_seq(rtp_session); |
| 4608 | |
| 4609 | if (!force) { |
| 4610 | if (rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || |
| 4611 | rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] || |
| 4612 | rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] || |
| 4613 | rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] |
| 4614 | ) { |
| 4615 | return; |
| 4616 | } |
| 4617 | } |
| 4618 | |
| 4619 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 4620 | |
| 4621 | if (switch_rtp_ready(rtp_session) ) { |
| 4622 | |
| 4623 | if (rtp_session->jb && !rtp_session->pause_jb && jb_valid(rtp_session)) { |
| 4624 | goto end; |
| 4625 | } |
| 4626 | |
| 4627 | if (rtp_session->flags[SWITCH_RTP_FLAG_DEBUG_RTP_READ]) { |
| 4628 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4628, (const char*)(rtp_session->session), |
| 4629 | SWITCH_LOG_CONSOLE, "%s FLUSH\n", |
| 4630 | rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel(rtp_session->session)) : "NoName" |
| 4631 | ); |
| 4632 | } |
| 4633 | |
| 4634 | if (!rtp_session->flags[SWITCH_RTP_FLAG_NOBLOCK]) { |
| 4635 | was_blocking = 1; |
| 4636 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 4637 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, TRUE(!0)); |
| 4638 | } |
| 4639 | |
| 4640 | do { |
| 4641 | if (switch_rtp_ready(rtp_session)) { |
| 4642 | bytes = sizeof(rtp_msg_t); |
| 4643 | switch_socket_recvfrom(rtp_session->from_addr, rtp_session->sock_input, 0, (void *) &rtp_session->recv_msg, &bytes); |
| 4644 | |
| 4645 | if (bytes) { |
| 4646 | int do_cng = 0; |
| 4647 | |
| 4648 | /* Make sure to handle RFC2833 packets, even if we're flushing the packets */ |
| 4649 | if (bytes > rtp_header_len12 && rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) { |
| 4650 | handle_rfc2833(rtp_session, bytes, &do_cng); |
| 4651 | #ifdef DEBUG_2833 |
| 4652 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4652, ((void*)0), SWITCH_LOG_ERROR, "*** RTP packet handled in flush loop %d ***\n", do_cng); |
| 4653 | #endif |
| 4654 | } |
| 4655 | |
| 4656 | flushed++; |
| 4657 | |
| 4658 | rtp_session->stats.inbound.raw_bytes += bytes; |
| 4659 | rtp_session->stats.inbound.flush_packet_count++; |
| 4660 | rtp_session->stats.inbound.packet_count++; |
| 4661 | } |
| 4662 | } else { |
| 4663 | break; |
| 4664 | } |
| 4665 | } while (bytes > 0); |
| 4666 | |
| 4667 | #if 0 |
| 4668 | if (rtp_session->jb && flushed) { |
| 4669 | stfu_n_sync(rtp_session->jb, flushed); |
| 4670 | reset_jitter_seq(rtp_session); |
| 4671 | } |
| 4672 | #endif |
| 4673 | |
| 4674 | if (was_blocking && switch_rtp_ready(rtp_session)) { |
| 4675 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK); |
| 4676 | switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK8, FALSE0); |
| 4677 | } |
| 4678 | } |
| 4679 | |
| 4680 | end: |
| 4681 | |
| 4682 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 4683 | } |
| 4684 | |
| 4685 | static int check_recv_payload(switch_rtp_t *rtp_session) |
| 4686 | { |
| 4687 | int ok = 1; |
| 4688 | |
| 4689 | if (rtp_session->pmaps && *rtp_session->pmaps) { |
| 4690 | payload_map_t *pmap; |
| 4691 | ok = 0; |
| 4692 | |
| 4693 | switch_mutex_lock(rtp_session->flag_mutex); |
| 4694 | |
| 4695 | for (pmap = *rtp_session->pmaps; pmap && pmap->allocated; pmap = pmap->next) { |
| 4696 | if (!pmap->negotiated) { |
| 4697 | continue; |
| 4698 | } |
| 4699 | |
| 4700 | if (rtp_session->recv_msg.header.pt == pmap->pt) { |
| 4701 | ok = 1; |
| 4702 | } |
| 4703 | } |
| 4704 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 4705 | } |
| 4706 | |
| 4707 | return ok; |
| 4708 | } |
| 4709 | |
| 4710 | #define return_cng_frame()do_cng = 1; goto timer_check do_cng = 1; goto timer_check |
| 4711 | |
| 4712 | static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t *bytes, switch_frame_flag_t *flags, switch_bool_t return_jb_packet) |
| 4713 | { |
| 4714 | switch_status_t status = SWITCH_STATUS_FALSE; |
| 4715 | stfu_frame_t *jb_frame; |
| 4716 | uint32_t ts = 0; |
| 4717 | unsigned char *b = NULL((void*)0); |
| 4718 | int sync = 0; |
| 4719 | switch_time_t now; |
| 4720 | switch_size_t xcheck_jitter = 0; |
| 4721 | |
| 4722 | switch_assert(bytes)((bytes) ? (void) (0) : __assert_fail ("bytes", "src/switch_rtp.c" , 4722, __PRETTY_FUNCTION__)); |
| 4723 | more: |
| 4724 | |
| 4725 | *bytes = sizeof(rtp_msg_t); |
| 4726 | sync = 0; |
| 4727 | |
| 4728 | status = switch_socket_recvfrom(rtp_session->from_addr, rtp_session->sock_input, 0, (void *) &rtp_session->recv_msg, bytes); |
| 4729 | |
| 4730 | if (*bytes) { |
| 4731 | rtp_session->missed_count = 0; |
| 4732 | } |
| 4733 | |
| 4734 | if (!rtp_session->jb || rtp_session->pause_jb || !jb_valid(rtp_session)) { |
| 4735 | if (*bytes > rtp_header_len12 && (rtp_session->recv_msg.header.version == 2 && check_recv_payload(rtp_session))) { |
| 4736 | xcheck_jitter = *bytes; |
| 4737 | check_jitter(rtp_session); |
| 4738 | } |
| 4739 | } |
| 4740 | |
| 4741 | if (check_rtcp_and_ice(rtp_session) == -1) { |
| 4742 | return SWITCH_STATUS_GENERR; |
| 4743 | } |
| 4744 | |
| 4745 | if (rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 4746 | goto udptl; |
| 4747 | } |
| 4748 | |
| 4749 | |
| 4750 | if (*bytes) { |
| 4751 | b = (unsigned char *) &rtp_session->recv_msg; |
| 4752 | |
| 4753 | *flags &= ~SFF_PROXY_PACKET; |
| 4754 | |
| 4755 | if (*b == 0 || *b == 1) { |
| 4756 | if (rtp_session->ice.ice_user) { |
| 4757 | handle_ice(rtp_session, &rtp_session->ice, (void *) &rtp_session->recv_msg, *bytes); |
| 4758 | } |
| 4759 | *bytes = 0; |
| 4760 | sync = 1; |
| 4761 | } |
| 4762 | } |
| 4763 | |
| 4764 | if (rtp_session->dtls) { |
| 4765 | |
| 4766 | if (rtp_session->rtcp_dtls && rtp_session->rtcp_dtls != rtp_session->dtls) { |
| 4767 | rtp_session->rtcp_dtls->bytes = 0; |
| 4768 | rtp_session->rtcp_dtls->data = NULL((void*)0); |
| 4769 | do_dtls(rtp_session, rtp_session->rtcp_dtls); |
| 4770 | } |
| 4771 | |
| 4772 | rtp_session->dtls->bytes = 0; |
| 4773 | |
| 4774 | if (*bytes) { |
| 4775 | char *b = (char *) &rtp_session->recv_msg; |
| 4776 | |
| 4777 | if ((*b >= 20) && (*b <= 64)) { |
| 4778 | rtp_session->dtls->bytes = *bytes; |
| 4779 | rtp_session->dtls->data = (void *) &rtp_session->recv_msg; |
| 4780 | } else { |
| 4781 | rtp_session->dtls->bytes = 0; |
| 4782 | rtp_session->dtls->data = NULL((void*)0); |
| 4783 | |
| 4784 | if (*b != 0 && *b != 1 && rtp_session->dtls->state != DS_READY) { |
| 4785 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4785, ((void*)0), SWITCH_LOG_DEBUG1, |
| 4786 | "Drop %s packet %ld bytes (dtls not ready!) b=%u\n", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", (long)*bytes, *b); |
| 4787 | *bytes = 0; |
| 4788 | } |
| 4789 | |
| 4790 | } |
| 4791 | } |
| 4792 | |
| 4793 | do_dtls(rtp_session, rtp_session->dtls); |
| 4794 | |
| 4795 | if (rtp_session->dtls->bytes) { |
| 4796 | *bytes = 0; |
| 4797 | sync = 1; |
| 4798 | } |
| 4799 | } |
| 4800 | |
| 4801 | if (status == SWITCH_STATUS_SUCCESS && *bytes) { |
| 4802 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 4803 | *flags &= ~SFF_RTCP; |
| 4804 | if (!check_recv_payload(rtp_session) && |
| 4805 | (!rtp_session->recv_te || rtp_session->recv_msg.header.pt != rtp_session->recv_te) && |
| 4806 | (!rtp_session->cng_pt || rtp_session->recv_msg.header.pt != rtp_session->cng_pt) && |
| 4807 | rtp_session->rtcp_recv_msg_p->header.version == 2 && |
| 4808 | rtp_session->rtcp_recv_msg_p->header.type > 199 && rtp_session->rtcp_recv_msg_p->header.type < 208) { //rtcp muxed |
| 4809 | *flags |= SFF_RTCP; |
| 4810 | return SWITCH_STATUS_SUCCESS; |
| 4811 | } |
| 4812 | } |
| 4813 | } |
| 4814 | |
| 4815 | |
| 4816 | if (*bytes && rtp_session->flags[SWITCH_RTP_FLAG_DEBUG_RTP_READ]) { |
| 4817 | const char *tx_host; |
| 4818 | const char *old_host; |
| 4819 | const char *my_host; |
| 4820 | |
| 4821 | char bufa[30], bufb[30], bufc[30]; |
| 4822 | |
| 4823 | |
| 4824 | tx_host = switch_get_addr(bufa, sizeof(bufa), rtp_session->from_addr); |
| 4825 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->remote_addr); |
| 4826 | my_host = switch_get_addr(bufc, sizeof(bufc), rtp_session->local_addr); |
| 4827 | |
| 4828 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG_CLEAN(rtp_session->session)SWITCH_CHANNEL_ID_LOG_CLEAN, "src/switch_rtp.c", (const char * )__func__, 4828, switch_core_session_get_uuid((rtp_session-> session)), SWITCH_LOG_CONSOLE, |
| 4829 | "R %s b=%4ld %s:%u %s:%u %s:%u pt=%d ts=%u m=%d\n", |
| 4830 | rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel(rtp_session->session)) : "No-Name", |
| 4831 | (long) *bytes, |
| 4832 | my_host, switch_sockaddr_get_port(rtp_session->local_addr), |
| 4833 | old_host, rtp_session->remote_port, |
| 4834 | tx_host, switch_sockaddr_get_port(rtp_session->from_addr), |
| 4835 | rtp_session->recv_msg.header.pt, ntohl(rtp_session->recv_msg.header.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })), rtp_session->recv_msg.header.m); |
| 4836 | |
| 4837 | } |
| 4838 | |
| 4839 | |
| 4840 | if (sync) { |
| 4841 | if (!rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && rtp_session->timer.interval) { |
| 4842 | switch_core_timer_sync(&rtp_session->timer); |
| 4843 | reset_jitter_seq(rtp_session); |
| 4844 | } |
| 4845 | rtp_session->hot_hits = 0; |
| 4846 | goto more; |
| 4847 | } |
| 4848 | |
| 4849 | |
| 4850 | udptl: |
| 4851 | |
| 4852 | ts = 0; |
| 4853 | rtp_session->recv_msg.ebody = NULL((void*)0); |
| 4854 | now = switch_micro_time_now(); |
| 4855 | |
| 4856 | if (*bytes) { |
| 4857 | uint16_t seq = ntohs((uint16_t) rtp_session->recv_msg.header.seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 4858 | ts = ntohl(rtp_session->recv_msg.header.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 4859 | |
| 4860 | if (!rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && |
| 4861 | rtp_session->recv_msg.header.version == 2 && rtp_session->recv_msg.header.x) { /* header extensions */ |
| 4862 | uint16_t length; |
| 4863 | |
| 4864 | rtp_session->recv_msg.ext = (switch_rtp_hdr_ext_t *) rtp_session->recv_msg.body; |
| 4865 | length = ntohs((uint16_t)rtp_session->recv_msg.ext->length)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t)rtp_session->recv_msg.ext->length); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((( (__x) >> 8) & 0xff) | (((__x) & 0xff) << 8 ))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc" ); __v; })); |
| 4866 | |
| 4867 | if (length < SWITCH_RTP_MAX_BUF_LEN_WORDS4094) { |
| 4868 | rtp_session->recv_msg.ebody = rtp_session->recv_msg.body + (length * 4) + 4; |
| 4869 | } |
| 4870 | } |
| 4871 | |
| 4872 | |
| 4873 | #ifdef DEBUG_MISSED_SEQ |
| 4874 | if (rtp_session->last_seq && rtp_session->last_seq+1 != seq) { |
| 4875 | //2012-11-28 18:33:11.799070 [ERR] switch_rtp.c:2883 Missed -65536 RTP frames from sequence [65536] to [-1] (missed). Time since last read [20021] |
| 4876 | switch_size_t flushed_packets_diff = rtp_session->stats.inbound.flush_packet_count - rtp_session->last_flush_packet_count; |
| 4877 | switch_size_t num_missed = (switch_size_t)seq - (rtp_session->last_seq+1); |
| 4878 | |
| 4879 | if (num_missed == 1) { /* We missed one packet */ |
| 4880 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4880, ((void*)0), SWITCH_LOG_ERROR, "Missed one RTP frame with sequence [%d]%s. Time since last read [%ld]\n", |
| 4881 | rtp_session->last_seq+1, (flushed_packets_diff == 1) ? " (flushed by FS)" : " (missed)", |
| 4882 | rtp_session->last_read_time ? now-rtp_session->last_read_time : 0); |
| 4883 | } else { /* We missed multiple packets */ |
| 4884 | if (flushed_packets_diff == 0) { |
| 4885 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4885, ((void*)0), SWITCH_LOG_ERROR, |
| 4886 | "Missed %ld RTP frames from sequence [%d] to [%d] (missed). Time since last read [%ld]\n", |
| 4887 | num_missed, rtp_session->last_seq+1, seq-1, |
| 4888 | rtp_session->last_read_time ? now-rtp_session->last_read_time : 0); |
| 4889 | } else if (flushed_packets_diff == num_missed) { |
| 4890 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4890, ((void*)0), SWITCH_LOG_ERROR, |
| 4891 | "Missed %ld RTP frames from sequence [%d] to [%d] (flushed by FS). Time since last read [%ld]\n", |
| 4892 | num_missed, rtp_session->last_seq+1, seq-1, |
| 4893 | rtp_session->last_read_time ? now-rtp_session->last_read_time : 0); |
| 4894 | } else if (num_missed > flushed_packets_diff) { |
| 4895 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4895, ((void*)0), SWITCH_LOG_ERROR, |
| 4896 | "Missed %ld RTP frames from sequence [%d] to [%d] (%ld packets flushed by FS, %ld packets missed)." |
| 4897 | " Time since last read [%ld]\n", |
| 4898 | num_missed, rtp_session->last_seq+1, seq-1, |
| 4899 | flushed_packets_diff, num_missed-flushed_packets_diff, |
| 4900 | rtp_session->last_read_time ? now-rtp_session->last_read_time : 0); |
| 4901 | } else { |
| 4902 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4902, ((void*)0), SWITCH_LOG_ERROR, |
| 4903 | "Missed %ld RTP frames from sequence [%d] to [%d] (%ld packets flushed by FS). Time since last read [%ld]\n", |
| 4904 | num_missed, rtp_session->last_seq+1, seq-1, |
| 4905 | flushed_packets_diff, rtp_session->last_read_time ? now-rtp_session->last_read_time : 0); |
| 4906 | } |
| 4907 | } |
| 4908 | |
| 4909 | } |
| 4910 | #endif |
| 4911 | rtp_session->last_seq = seq; |
| 4912 | |
| 4913 | |
| 4914 | rtp_session->last_flush_packet_count = rtp_session->stats.inbound.flush_packet_count; |
| 4915 | |
| 4916 | |
| 4917 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && now - rtp_session->last_read_time > 5000000) { |
| 4918 | switch_rtp_video_refresh(rtp_session); |
| 4919 | } |
| 4920 | |
| 4921 | rtp_session->last_read_time = now; |
| 4922 | } |
| 4923 | |
| 4924 | if (!rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && |
| 4925 | *bytes && (!rtp_session->recv_te || rtp_session->recv_msg.header.pt != rtp_session->recv_te) && |
| 4926 | ts && !rtp_session->jb && !rtp_session->pause_jb && jb_valid(rtp_session) && ts == rtp_session->last_cng_ts) { |
| 4927 | /* we already sent this frame..... */ |
| 4928 | *bytes = 0; |
| 4929 | return SWITCH_STATUS_SUCCESS; |
| 4930 | } |
| 4931 | |
| 4932 | if (*bytes) { |
| 4933 | rtp_session->stats.inbound.raw_bytes += *bytes; |
| 4934 | if (rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) { |
| 4935 | rtp_session->stats.inbound.dtmf_packet_count++; |
| 4936 | } else if (rtp_session->cng_pt && (rtp_session->recv_msg.header.pt == rtp_session->cng_pt || rtp_session->recv_msg.header.pt == 13)) { |
| 4937 | rtp_session->stats.inbound.cng_packet_count++; |
| 4938 | } else { |
| 4939 | rtp_session->stats.inbound.media_packet_count++; |
| 4940 | rtp_session->stats.inbound.media_bytes += *bytes; |
| 4941 | } |
| 4942 | |
| 4943 | rtp_session->stats.inbound.packet_count++; |
| 4944 | rtcp_stats(rtp_session); |
| 4945 | |
| 4946 | |
| 4947 | if (!rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 4948 | #ifdef ENABLE_ZRTP |
| 4949 | /* ZRTP Recv */ |
| 4950 | if (zrtp_on) { |
| 4951 | |
| 4952 | unsigned int sbytes = (int) *bytes; |
| 4953 | zrtp_status_t stat = 0; |
| 4954 | |
| 4955 | stat = zrtp_process_srtp(rtp_session->zrtp_stream, (void *) &rtp_session->recv_msg, &sbytes); |
| 4956 | |
| 4957 | switch (stat) { |
| 4958 | case zrtp_status_ok: |
| 4959 | *bytes = sbytes; |
| 4960 | break; |
| 4961 | case zrtp_status_drop: |
| 4962 | /* switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Error: zRTP protection drop with code %d\n", stat); */ |
| 4963 | *bytes = 0; |
| 4964 | return SWITCH_STATUS_SUCCESS; |
| 4965 | case zrtp_status_fail: |
| 4966 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 4966, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 4967 | return SWITCH_STATUS_FALSE; |
| 4968 | default: |
| 4969 | break; |
| 4970 | } |
| 4971 | } |
| 4972 | #endif |
| 4973 | |
| 4974 | #ifdef ENABLE_SRTP1 |
| 4975 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && rtp_session->recv_msg.header.version == 2 && |
| 4976 | (check_recv_payload(rtp_session) || |
| 4977 | (rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) || |
| 4978 | (rtp_session->cng_pt && rtp_session->recv_msg.header.pt == rtp_session->cng_pt))) { |
| 4979 | //if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && (!rtp_session->ice.ice_user || rtp_session->recv_msg.header.version == 2)) { |
| 4980 | int sbytes = (int) *bytes; |
| 4981 | err_status_t stat = 0; |
| 4982 | |
| 4983 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV_RESET]) { |
| 4984 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV_RESET); |
| 4985 | srtp_dealloc(rtp_session->recv_ctx[rtp_session->srtp_idx_rtp]); |
| 4986 | rtp_session->recv_ctx[rtp_session->srtp_idx_rtp] = NULL((void*)0); |
| 4987 | if ((stat = srtp_create(&rtp_session->recv_ctx[rtp_session->srtp_idx_rtp], &rtp_session->recv_policy[rtp_session->srtp_idx_rtp]))) { |
| 4988 | |
| 4989 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4989, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error! RE-Activating Secure RTP RECV\n"); |
| 4990 | return SWITCH_STATUS_FALSE; |
| 4991 | } else { |
| 4992 | |
| 4993 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 4993, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "RE-Activating Secure RTP RECV\n"); |
| 4994 | rtp_session->srtp_errs[rtp_session->srtp_idx_rtp] = 0; |
| 4995 | } |
| 4996 | } |
| 4997 | |
| 4998 | if (!(*flags & SFF_PLC)) { |
| 4999 | stat = srtp_unprotect(rtp_session->recv_ctx[rtp_session->srtp_idx_rtp], &rtp_session->recv_msg.header, &sbytes); |
| 5000 | } |
| 5001 | |
| 5002 | if (stat && rtp_session->recv_msg.header.pt != rtp_session->recv_te && rtp_session->recv_msg.header.pt != rtp_session->cng_pt) { |
| 5003 | int errs = ++rtp_session->srtp_errs[rtp_session->srtp_idx_rtp]; |
| 5004 | if (stat != 10) { |
| 5005 | char *msg; |
| 5006 | if (stat == err_status_replay_fail) msg="replay check failed"; |
| 5007 | else if (stat == err_status_auth_fail) msg="auth check failed"; |
| 5008 | else msg=""; |
| 5009 | if (errs >= MAX_SRTP_ERRS100) { |
| 5010 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 5011 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5011, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, |
| 5012 | "SRTP %s unprotect failed with code %d (%s) %ld bytes %d errors\n", |
| 5013 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", stat, msg, (long)*bytes, errs); |
| 5014 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5014, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, |
| 5015 | "Ending call due to SRTP error\n"); |
| 5016 | switch_channel_hangup(channel, SWITCH_CAUSE_SRTP_READ_ERROR)switch_channel_perform_hangup(channel, "src/switch_rtp.c", (const char *)__func__, 5016, SWITCH_CAUSE_SRTP_READ_ERROR); |
| 5017 | } else if (errs >= WARN_SRTP_ERRS10 && !(errs % WARN_SRTP_ERRS10)) { |
| 5018 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5018, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, |
| 5019 | "SRTP %s unprotect failed with code %d (%s) %ld bytes %d errors\n", |
| 5020 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", stat, msg, (long)*bytes, errs); |
| 5021 | } |
| 5022 | } |
| 5023 | sbytes = 0; |
| 5024 | } else { |
| 5025 | rtp_session->srtp_errs[rtp_session->srtp_idx_rtp] = 0; |
| 5026 | } |
| 5027 | |
| 5028 | *bytes = sbytes; |
| 5029 | } |
| 5030 | #endif |
| 5031 | } |
| 5032 | } |
| 5033 | |
| 5034 | if ((rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) || |
| 5035 | (*bytes < rtp_header_len12 && *bytes > 0) || |
| 5036 | rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 5037 | return SWITCH_STATUS_SUCCESS; |
| 5038 | } |
| 5039 | |
| 5040 | if (ts) { |
| 5041 | rtp_session->last_read_ts = ts; |
| 5042 | } |
| 5043 | |
| 5044 | if (rtp_session->flags[SWITCH_RTP_FLAG_BYTESWAP] && check_recv_payload(rtp_session)) { |
| 5045 | switch_swap_linear((int16_t *)RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body), (int) *bytes - rtp_header_len12); |
| 5046 | } |
| 5047 | |
| 5048 | if (rtp_session->flags[SWITCH_RTP_FLAG_KILL_JB]) { |
| 5049 | rtp_session->flags[SWITCH_RTP_FLAG_KILL_JB] = 0; |
| 5050 | if (rtp_session->jb) { |
| 5051 | stfu_n_destroy(&rtp_session->jb); |
| 5052 | } |
| 5053 | } |
| 5054 | |
| 5055 | |
| 5056 | if (rtp_session->jb && !rtp_session->pause_jb && jb_valid(rtp_session) && rtp_session->recv_msg.header.version == 2 && *bytes) { |
| 5057 | if (rtp_session->recv_msg.header.m && rtp_session->recv_msg.header.pt != rtp_session->recv_te && |
| 5058 | !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && !(rtp_session->rtp_bugs & RTP_BUG_IGNORE_MARK_BIT)) { |
| 5059 | stfu_n_reset(rtp_session->jb)_stfu_n_reset(rtp_session->jb, "src/switch_rtp.c", __FUNCTION__ , 5059); |
| 5060 | } |
| 5061 | |
| 5062 | if (!rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && rtp_session->timer.interval) { |
| 5063 | switch_core_timer_sync(&rtp_session->timer); |
| 5064 | reset_jitter_seq(rtp_session); |
| 5065 | } |
| 5066 | |
| 5067 | if (stfu_n_eat(rtp_session->jb, rtp_session->last_read_ts,stfu_n_add_data(rtp_session->jb, rtp_session->last_read_ts , (__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), rtp_session-> recv_msg.header.pt, (char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg.ebody : rtp_session->recv_msg.body ), *bytes - 12, rtp_session->timer.samplecount, 0) |
| 5068 | ntohs((uint16_t) rtp_session->recv_msg.header.seq),stfu_n_add_data(rtp_session->jb, rtp_session->last_read_ts , (__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), rtp_session-> recv_msg.header.pt, (char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg.ebody : rtp_session->recv_msg.body ), *bytes - 12, rtp_session->timer.samplecount, 0) |
| 5069 | rtp_session->recv_msg.header.pt,stfu_n_add_data(rtp_session->jb, rtp_session->last_read_ts , (__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), rtp_session-> recv_msg.header.pt, (char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg.ebody : rtp_session->recv_msg.body ), *bytes - 12, rtp_session->timer.samplecount, 0) |
| 5070 | RTP_BODY(rtp_session), *bytes - rtp_header_len, rtp_session->timer.samplecount)stfu_n_add_data(rtp_session->jb, rtp_session->last_read_ts , (__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), rtp_session-> recv_msg.header.pt, (char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg.ebody : rtp_session->recv_msg.body ), *bytes - 12, rtp_session->timer.samplecount, 0) == STFU_ITS_TOO_LATE) { |
| 5071 | |
| 5072 | goto more; |
| 5073 | } |
| 5074 | |
| 5075 | status = SWITCH_STATUS_FALSE; |
| 5076 | *bytes = 0; |
| 5077 | |
| 5078 | if (!return_jb_packet) { |
| 5079 | return status; |
| 5080 | } |
| 5081 | |
| 5082 | } |
| 5083 | |
| 5084 | if (rtp_session->jb && !rtp_session->pause_jb && jb_valid(rtp_session)) { |
| 5085 | if ((jb_frame = stfu_n_read_a_frame(rtp_session->jb))) { |
| 5086 | memcpy(RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body), jb_frame->data, jb_frame->dlen); |
| 5087 | |
| 5088 | if (jb_frame->plc) { |
| 5089 | (*flags) |= SFF_PLC; |
| 5090 | } else { |
| 5091 | rtp_session->stats.inbound.jb_packet_count++; |
| 5092 | } |
| 5093 | *bytes = jb_frame->dlen + rtp_header_len12; |
| 5094 | rtp_session->recv_msg.header.version = 2; |
| 5095 | rtp_session->recv_msg.header.x = 0; |
| 5096 | rtp_session->recv_msg.header.ts = htonl(jb_frame->ts)(__extension__ ({ unsigned int __v, __x = (jb_frame->ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 5097 | rtp_session->recv_msg.header.pt = jb_frame->pt; |
| 5098 | rtp_session->recv_msg.header.seq = htons(jb_frame->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (jb_frame->seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | ( ((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 5099 | status = SWITCH_STATUS_SUCCESS; |
| 5100 | if (!xcheck_jitter) { |
| 5101 | check_jitter(rtp_session); |
| 5102 | xcheck_jitter = *bytes; |
| 5103 | } |
| 5104 | |
| 5105 | } |
| 5106 | } |
| 5107 | |
| 5108 | return status; |
| 5109 | } |
| 5110 | |
| 5111 | static switch_status_t process_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t *bytes) |
| 5112 | { |
| 5113 | switch_status_t status = SWITCH_STATUS_FALSE; |
| 5114 | switch_core_session_t *session = switch_core_memory_pool_get_data(rtp_session->pool, "__session"); |
| 5115 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5115, (const char*)(session), SWITCH_LOG_DEBUG10,"Received an RTCP packet of length %" SWITCH_SIZE_T_FMT"ld" " bytes\n", *bytes); |
| 5116 | if (rtp_session->rtcp_recv_msg.header.version == 2) { |
| 5117 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5117, (const char*)(session), SWITCH_LOG_DEBUG10,"RTCP packet type is %d\n", rtp_session->rtcp_recv_msg.header.type); |
| 5118 | |
| 5119 | if (rtp_session->rtcp_recv_msg.header.type == 200 || rtp_session->rtcp_recv_msg.header.type == 201) { |
| 5120 | struct switch_rtcp_report_block *report_block; |
| 5121 | switch_time_t now; |
| 5122 | switch_time_exp_t now_hr; |
| 5123 | uint32_t sec, ntp_sec, ntp_usec, lsr_now; |
| 5124 | uint32_t lsr; |
| 5125 | uint32_t packet_ssrc; |
| 5126 | now = switch_time_now(); /* number of microseconds since 00:00:00 january 1, 1970 UTC */ |
| 5127 | sec = (uint32_t)(now/1000000); /* converted to second (NTP most significant bits) */ |
| 5128 | ntp_sec = sec+NTP_TIME_OFFSET2208988800UL; /* 32bits most significant */ |
| 5129 | ntp_usec = (uint32_t)(now - (sec*1000000)); /* micro seconds */ |
| 5130 | lsr_now = (uint32_t)(ntp_usec*0.065536) | (ntp_sec&0x0000ffff)<<16; // 0.065536 is used for convertion from useconds |
| 5131 | |
| 5132 | if (rtp_session->rtcp_recv_msg.header.type == 200) { /* Sender report */ |
| 5133 | struct switch_rtcp_sender_report* sr = (struct switch_rtcp_sender_report*)rtp_session->rtcp_recv_msg.body; |
| 5134 | report_block = &sr->report_block; |
| 5135 | rtp_session->stats.rtcp.packet_count += ntohl(sr->sender_info.pc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .pc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 5136 | rtp_session->stats.rtcp.octet_count += ntohl(sr->sender_info.oc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .oc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 5137 | packet_ssrc = sr->ssrc; |
| 5138 | /* Extracting LSR from NTP timestamp and save it */ |
| 5139 | lsr = (ntohl(sr->sender_info.ntp_lsw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_lsw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; }))&0xffff0000)>>16 | (ntohl(sr->sender_info.ntp_msw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_msw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; }))&0x0000ffff)<<16; /* The middle 32 bits out of 64 in the NTP timestamp */ |
| 5140 | rtp_session->stats.rtcp.last_recv_lsr_peer = htonl(lsr)(__extension__ ({ unsigned int __v, __x = (lsr); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); /* Save it include it in the next SR */ |
| 5141 | rtp_session->stats.rtcp.last_recv_lsr_local = lsr_now; /* Save it to calculate DLSR when generating next SR */ |
| 5142 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5142, (const char*)(session), SWITCH_LOG_DEBUG10,"Received a SR with %d report blocks, " \ |
| 5143 | "length in words = %d, " \ |
| 5144 | "SSRC = 0x%X, " \ |
| 5145 | "NTP MSW = %u, " \ |
| 5146 | "NTP LSW = %u, " \ |
| 5147 | "RTP timestamp = %u, " \ |
| 5148 | "Sender Packet Count = %u, " \ |
| 5149 | "Sender Octet Count = %u\n", |
| 5150 | rtp_session->rtcp_recv_msg.header.count, |
| 5151 | ntohs((uint16_t)rtp_session->rtcp_recv_msg.header.length)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t)rtp_session->rtcp_recv_msg.header.length) ; if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })), |
| 5152 | ntohl(sr->ssrc)(__extension__ ({ unsigned int __v, __x = (sr->ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })), |
| 5153 | ntohl(sr->sender_info.ntp_msw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_msw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })), |
| 5154 | ntohl(sr->sender_info.ntp_lsw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_lsw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })), |
| 5155 | ntohl(sr->sender_info.ts)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })), |
| 5156 | ntohl(sr->sender_info.pc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .pc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })), |
| 5157 | ntohl(sr->sender_info.oc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .oc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; }))); |
| 5158 | } else { /* Receiver report */ |
| 5159 | struct switch_rtcp_receiver_report* rr = (struct switch_rtcp_receiver_report*)rtp_session->rtcp_recv_msg.body; |
| 5160 | report_block = &rr->report_block; |
| 5161 | packet_ssrc = rr->ssrc; |
| 5162 | } |
| 5163 | |
| 5164 | /* Currently in passthru mode RTT will not be accurate, some work as to be done (something like mapping the NTP timestamp with a local one) to have RTT from both legs */ |
| 5165 | if (report_block->lsr && !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU]) { |
| 5166 | switch_time_exp_gmt(&now_hr,now); |
| 5167 | /* Calculating RTT = A - DLSR - LSR */ |
| 5168 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5168, (const char*)(session), SWITCH_LOG_NOTICE, |
| 5169 | "Receiving an RTCP packet[%04d-%02d-%02d %02d:%02d:%02d.%d] SSRC[%u]" |
| 5170 | "RTT[%f] A[%u] - DLSR[%u] - LSR[%u]\n", |
| 5171 | 1900 + now_hr.tm_year, now_hr.tm_mday, now_hr.tm_mon, now_hr.tm_hour, now_hr.tm_min, now_hr.tm_sec, now_hr.tm_usec, |
| 5172 | ntohl(packet_ssrc)(__extension__ ({ unsigned int __v, __x = (packet_ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })), (double)(lsr_now - ntohl(report_block->dlsr)(__extension__ ({ unsigned int __v, __x = (report_block->dlsr ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })) - ntohl(report_block->lsr)(__extension__ ({ unsigned int __v, __x = (report_block->lsr ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })))/65536, |
| 5173 | lsr_now, ntohl(report_block->dlsr)(__extension__ ({ unsigned int __v, __x = (report_block->dlsr ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })), ntohl(report_block->lsr)(__extension__ ({ unsigned int __v, __x = (report_block->lsr ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; }))); |
| 5174 | } |
| 5175 | |
| 5176 | rtp_session->rtcp_fresh_frame = 1; |
| 5177 | rtp_session->stats.rtcp.peer_ssrc = ntohl(packet_ssrc)(__extension__ ({ unsigned int __v, __x = (packet_ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 5178 | status = SWITCH_STATUS_SUCCESS; |
| 5179 | } |
| 5180 | } else { |
| 5181 | if (rtp_session->rtcp_recv_msg_p->header.version != 2) { |
| 5182 | if (rtp_session->rtcp_recv_msg_p->header.version == 0) { |
| 5183 | if (rtp_session->ice.ice_user) { |
| 5184 | handle_ice(rtp_session, &rtp_session->rtcp_ice, (void *) rtp_session->rtcp_recv_msg_p, *bytes); |
| 5185 | } |
| 5186 | } else { |
| 5187 | |
| 5188 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5188, (const char*)(rtp_session->session), |
| 5189 | SWITCH_LOG_DEBUG, "Received an unsupported RTCP packet version %d\nn", rtp_session->rtcp_recv_msg_p->header.version); |
| 5190 | } |
| 5191 | } |
| 5192 | |
| 5193 | status = SWITCH_STATUS_SUCCESS; |
| 5194 | } |
| 5195 | |
| 5196 | return status; |
| 5197 | } |
| 5198 | |
| 5199 | |
| 5200 | |
| 5201 | |
| 5202 | static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t *bytes, switch_frame_flag_t *flags) |
| 5203 | { |
| 5204 | switch_status_t status = SWITCH_STATUS_FALSE; |
| 5205 | |
| 5206 | if (!rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 5207 | return SWITCH_STATUS_FALSE; |
| 5208 | } |
| 5209 | |
| 5210 | switch_assert(bytes)((bytes) ? (void) (0) : __assert_fail ("bytes", "src/switch_rtp.c" , 5210, __PRETTY_FUNCTION__)); |
| 5211 | |
| 5212 | *bytes = sizeof(rtcp_msg_t); |
| 5213 | |
| 5214 | if ((status = switch_socket_recvfrom(rtp_session->rtcp_from_addr, rtp_session->rtcp_sock_input, 0, (void *) rtp_session->rtcp_recv_msg_p, bytes)) |
| 5215 | != SWITCH_STATUS_SUCCESS) { |
| 5216 | *bytes = 0; |
| 5217 | } |
| 5218 | |
| 5219 | if (rtp_session->rtcp_dtls) { |
| 5220 | char *b = (char *) &rtp_session->rtcp_recv_msg; |
| 5221 | |
| 5222 | if (*b == 0 || *b == 1) { |
| 5223 | if (rtp_session->rtcp_ice.ice_user) { |
| 5224 | handle_ice(rtp_session, &rtp_session->rtcp_ice, (void *) &rtp_session->rtcp_recv_msg, *bytes); |
| 5225 | } |
| 5226 | *bytes = 0; |
| 5227 | } |
| 5228 | |
| 5229 | if (*bytes && (*b >= 20) && (*b <= 64)) { |
| 5230 | rtp_session->rtcp_dtls->bytes = *bytes; |
| 5231 | rtp_session->rtcp_dtls->data = (void *) &rtp_session->rtcp_recv_msg; |
| 5232 | } else { |
| 5233 | rtp_session->rtcp_dtls->bytes = 0; |
| 5234 | rtp_session->rtcp_dtls->data = NULL((void*)0); |
| 5235 | } |
| 5236 | |
| 5237 | do_dtls(rtp_session, rtp_session->rtcp_dtls); |
| 5238 | |
| 5239 | |
| 5240 | if (rtp_session->rtcp_dtls->bytes) { |
| 5241 | *bytes = 0; |
| 5242 | } |
| 5243 | } |
| 5244 | |
| 5245 | |
| 5246 | |
| 5247 | #ifdef ENABLE_SRTP1 |
| 5248 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && rtp_session->rtcp_recv_msg_p->header.version == 2) { |
| 5249 | //if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && (!rtp_session->ice.ice_user || rtp_session->rtcp_recv_msg_p->header.version == 2)) { |
| 5250 | int sbytes = (int) *bytes; |
| 5251 | err_status_t stat = 0; |
| 5252 | |
| 5253 | |
| 5254 | if ((stat = srtp_unprotect_rtcp(rtp_session->recv_ctx[rtp_session->srtp_idx_rtcp], &rtp_session->rtcp_recv_msg_p->header, &sbytes))) { |
| 5255 | //++rtp_session->srtp_errs[rtp_session->srtp_idx_rtp]++; |
| 5256 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5256, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "RTCP UNPROTECT ERR\n"); |
| 5257 | } else { |
| 5258 | //rtp_session->srtp_errs[rtp_session->srtp_idx_rtp] = 0; |
| 5259 | } |
| 5260 | |
| 5261 | *bytes = sbytes; |
| 5262 | |
| 5263 | } |
| 5264 | #endif |
| 5265 | |
| 5266 | |
| 5267 | #ifdef ENABLE_ZRTP |
| 5268 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && rtp_session->rtcp_recv_msg_p->header.version == 2) { |
| 5269 | /* ZRTP Recv */ |
| 5270 | if (bytes) { |
| 5271 | unsigned int sbytes = (int) *bytes; |
| 5272 | zrtp_status_t stat = 0; |
| 5273 | |
| 5274 | stat = zrtp_process_srtcp(rtp_session->zrtp_stream, (void *) rtp_session->rtcp_recv_msg_p, &sbytes); |
| 5275 | |
| 5276 | switch (stat) { |
| 5277 | case zrtp_status_ok: |
| 5278 | *bytes = sbytes; |
| 5279 | break; |
| 5280 | case zrtp_status_drop: |
| 5281 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 5281, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 5282 | *bytes = 0; |
| 5283 | break; |
| 5284 | case zrtp_status_fail: |
| 5285 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 5285, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 5286 | *bytes = 0; |
| 5287 | break; |
| 5288 | default: |
| 5289 | break; |
| 5290 | } |
| 5291 | } |
| 5292 | } |
| 5293 | #endif |
| 5294 | |
| 5295 | |
| 5296 | if (*bytes) { |
| 5297 | return process_rtcp_packet(rtp_session, bytes); |
| 5298 | } |
| 5299 | |
| 5300 | return status; |
| 5301 | } |
| 5302 | |
| 5303 | static int using_ice(switch_rtp_t *rtp_session) |
| 5304 | { |
| 5305 | if (rtp_session->ice.ice_user || rtp_session->rtcp_ice.ice_user) { |
| 5306 | return 1; |
| 5307 | } |
| 5308 | |
| 5309 | return 0; |
| 5310 | } |
| 5311 | |
| 5312 | static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_type, |
| 5313 | payload_map_t **pmapP, switch_frame_flag_t *flags, switch_io_flag_t io_flags) |
| 5314 | { |
| 5315 | |
| 5316 | switch_channel_t *channel = NULL((void*)0); |
| 5317 | switch_size_t bytes = 0; |
| 5318 | switch_size_t rtcp_bytes = 0; |
| 5319 | switch_status_t status = SWITCH_STATUS_SUCCESS, poll_status = SWITCH_STATUS_SUCCESS; |
| 5320 | switch_status_t rtcp_status = SWITCH_STATUS_SUCCESS, rtcp_poll_status = SWITCH_STATUS_SUCCESS; |
| 5321 | int check = 0; |
| 5322 | int ret = -1; |
| 5323 | int sleep_mss = 1000; |
| 5324 | int poll_sec = 5; |
| 5325 | int poll_loop = 0; |
| 5326 | int fdr = 0; |
| 5327 | int rtcp_fdr = 0; |
| 5328 | int hot_socket = 0; |
| 5329 | int read_loops = 0; |
| 5330 | int slept = 0; |
| 5331 | |
| 5332 | if (!switch_rtp_ready(rtp_session)) { |
| 5333 | return -1; |
| 5334 | } |
| 5335 | |
| 5336 | if (rtp_session->session) { |
| 5337 | channel = switch_core_session_get_channel(rtp_session->session); |
| 5338 | } |
| 5339 | |
| 5340 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 5341 | sleep_mss = rtp_session->timer.interval * 1000; |
| 5342 | } |
| 5343 | |
| 5344 | READ_INC(rtp_session)switch_mutex_lock(rtp_session->read_mutex); rtp_session-> reading++; |
| 5345 | |
| 5346 | |
| 5347 | |
| 5348 | while (switch_rtp_ready(rtp_session)) { |
| 5349 | int do_cng = 0; |
| 5350 | int read_pretriggered = 0; |
| 5351 | int has_rtcp = 0; |
| 5352 | |
| 5353 | bytes = 0; |
| 5354 | |
| 5355 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && |
| 5356 | !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && |
| 5357 | !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && |
| 5358 | !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && |
| 5359 | rtp_session->read_pollfd) { |
| 5360 | |
| 5361 | if (rtp_session->jb && !rtp_session->pause_jb && jb_valid(rtp_session)) { |
| 5362 | while (switch_poll(rtp_session->read_pollfd, 1, &fdr, 0) == SWITCH_STATUS_SUCCESS) { |
| 5363 | status = read_rtp_packet(rtp_session, &bytes, flags, SWITCH_FALSE); |
| 5364 | |
| 5365 | if (status == SWITCH_STATUS_GENERR) { |
| 5366 | ret = -1; |
| 5367 | goto end; |
| 5368 | } |
| 5369 | |
| 5370 | if ((*flags & SFF_RTCP)) { |
| 5371 | *flags &= ~SFF_RTCP; |
| 5372 | has_rtcp = 1; |
| 5373 | read_pretriggered = 0; |
| 5374 | goto rtcp; |
| 5375 | } |
| 5376 | |
| 5377 | if (status != SWITCH_STATUS_FALSE) { |
| 5378 | read_pretriggered = 1; |
| 5379 | break; |
| 5380 | } |
| 5381 | } |
| 5382 | |
| 5383 | } else if ((rtp_session->flags[SWITCH_RTP_FLAG_AUTOFLUSH] || rtp_session->flags[SWITCH_RTP_FLAG_STICKY_FLUSH])) { |
| 5384 | |
| 5385 | if (switch_poll(rtp_session->read_pollfd, 1, &fdr, 0) == SWITCH_STATUS_SUCCESS) { |
| 5386 | status = read_rtp_packet(rtp_session, &bytes, flags, SWITCH_FALSE); |
| 5387 | if (status == SWITCH_STATUS_GENERR) { |
| 5388 | ret = -1; |
| 5389 | goto end; |
| 5390 | } |
| 5391 | if ((*flags & SFF_RTCP)) { |
| 5392 | *flags &= ~SFF_RTCP; |
| 5393 | has_rtcp = 1; |
| 5394 | read_pretriggered = 0; |
| 5395 | goto rtcp; |
| 5396 | } |
| 5397 | |
| 5398 | /* switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "Initial (%i) %d\n", status, bytes); */ |
| 5399 | if (status != SWITCH_STATUS_FALSE) { |
| 5400 | read_pretriggered = 1; |
| 5401 | } |
| 5402 | |
| 5403 | if (bytes) { |
| 5404 | if (switch_poll(rtp_session->read_pollfd, 1, &fdr, 0) == SWITCH_STATUS_SUCCESS) { |
| 5405 | rtp_session->hot_hits++;//+= rtp_session->samples_per_interval; |
| 5406 | |
| 5407 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5407, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG10, "%s Hot Hit %d\n", |
| 5408 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 5409 | rtp_session->hot_hits); |
| 5410 | } else { |
| 5411 | rtp_session->hot_hits = 0; |
| 5412 | } |
| 5413 | } |
| 5414 | |
| 5415 | if (rtp_session->hot_hits > 1 && !rtp_session->sync_packets) {// >= (rtp_session->samples_per_second * 30)) { |
| 5416 | hot_socket = 1; |
| 5417 | } |
| 5418 | } else { |
| 5419 | rtp_session->hot_hits = 0; |
| 5420 | } |
| 5421 | } |
| 5422 | |
| 5423 | if (hot_socket && (rtp_session->hot_hits % 10) != 0) { |
| 5424 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5424, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG10, "%s timer while HOT\n", rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-"); |
| 5425 | switch_core_timer_next(&rtp_session->timer); |
| 5426 | } else if (hot_socket) { |
| 5427 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5427, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG10, "%s skip timer once\n", rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-"); |
| 5428 | rtp_session->sync_packets++; |
| 5429 | switch_core_timer_sync(&rtp_session->timer); |
| 5430 | reset_jitter_seq(rtp_session); |
| 5431 | } else { |
| 5432 | |
| 5433 | if (rtp_session->sync_packets) { |
| 5434 | |
| 5435 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5435, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG10, |
| 5436 | "%s Auto-Flush catching up %d packets (%d)ms.\n", |
| 5437 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 5438 | rtp_session->sync_packets, (rtp_session->ms_per_packet * rtp_session->sync_packets) / 1000); |
| 5439 | if (!rtp_session->flags[SWITCH_RTP_FLAG_PAUSE]) { |
| 5440 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5440, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "%s syncing %d %s packet(s)\n", |
| 5441 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", |
| 5442 | rtp_session->sync_packets, rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 5443 | |
| 5444 | rtp_session->stats.inbound.flaws += rtp_session->sync_packets; |
| 5445 | } |
| 5446 | |
| 5447 | switch_core_timer_sync(&rtp_session->timer); |
| 5448 | reset_jitter_seq(rtp_session); |
| 5449 | rtp_session->hot_hits = 0; |
| 5450 | } else { |
| 5451 | if (slept) { |
| 5452 | switch_cond_next(); |
| 5453 | } else { |
| 5454 | switch_core_timer_next(&rtp_session->timer); |
| 5455 | slept++; |
| 5456 | } |
| 5457 | |
| 5458 | } |
| 5459 | |
| 5460 | rtp_session->sync_packets = 0; |
| 5461 | } |
| 5462 | } |
| 5463 | |
| 5464 | rtp_session->stats.read_count++; |
| 5465 | |
| 5466 | recvfrom: |
| 5467 | |
| 5468 | if (!read_pretriggered) { |
| 5469 | bytes = 0; |
| 5470 | } |
| 5471 | read_loops++; |
| 5472 | //poll_loop = 0; |
| 5473 | |
| 5474 | if (!switch_rtp_ready(rtp_session)) { |
| 5475 | break; |
| 5476 | } |
| 5477 | |
| 5478 | if (!rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && rtp_session->read_pollfd) { |
| 5479 | int pt = poll_sec * 1000000; |
| 5480 | |
| 5481 | do_2833(rtp_session); |
| 5482 | |
| 5483 | if (rtp_session->dtmf_data.out_digit_dur > 0 || rtp_session->dtmf_data.in_digit_sanity || rtp_session->sending_dtmf || |
| 5484 | switch_queue_size(rtp_session->dtmf_data.dtmf_queue) || switch_queue_size(rtp_session->dtmf_data.dtmf_inqueue)) { |
| 5485 | pt = 20000; |
| 5486 | } |
| 5487 | |
| 5488 | |
| 5489 | if ((io_flags & SWITCH_IO_FLAG_NOBLOCK)) { |
| 5490 | pt = 0; |
| 5491 | } |
| 5492 | |
| 5493 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 5494 | pt = 100000; |
| 5495 | } |
| 5496 | |
| 5497 | if (using_ice(rtp_session)) { |
| 5498 | pt = 20000; |
| 5499 | } |
| 5500 | |
| 5501 | poll_status = switch_poll(rtp_session->read_pollfd, 1, &fdr, pt); |
| 5502 | |
| 5503 | |
| 5504 | if (rtp_session->dtmf_data.out_digit_dur > 0) { |
| 5505 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5506 | } |
| 5507 | |
| 5508 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && rtp_session->flags[SWITCH_RTP_FLAG_BREAK]) { |
| 5509 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_BREAK); |
| 5510 | bytes = 0; |
| 5511 | reset_jitter_seq(rtp_session); |
| 5512 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5513 | } |
| 5514 | |
| 5515 | } |
| 5516 | |
| 5517 | |
| 5518 | if (poll_status == SWITCH_STATUS_SUCCESS) { |
| 5519 | if (read_pretriggered) { |
| 5520 | read_pretriggered = 0; |
| 5521 | } else { |
| 5522 | |
| 5523 | status = read_rtp_packet(rtp_session, &bytes, flags, SWITCH_TRUE); |
| 5524 | |
| 5525 | if (status == SWITCH_STATUS_GENERR) { |
| 5526 | ret = -1; |
| 5527 | goto end; |
| 5528 | } |
| 5529 | |
| 5530 | if (rtp_session->max_missed_packets && read_loops == 1 && !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 5531 | if (bytes) { |
| 5532 | rtp_session->missed_count = 0; |
| 5533 | } else if (++rtp_session->missed_count >= rtp_session->max_missed_packets) { |
| 5534 | ret = -2; |
| 5535 | goto end; |
| 5536 | } |
| 5537 | } |
| 5538 | |
| 5539 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 5540 | //switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_CRIT, "Read bytes (%i) %ld\n", status, bytes); |
| 5541 | |
| 5542 | if (bytes == 0) { |
| 5543 | if (check_rtcp_and_ice(rtp_session) == -1) { |
| 5544 | ret = -1; |
| 5545 | goto end; |
| 5546 | } |
| 5547 | // This is dumb |
| 5548 | //switch_rtp_video_refresh(rtp_session); |
| 5549 | goto rtcp; |
| 5550 | } |
| 5551 | } |
| 5552 | |
| 5553 | if ((*flags & SFF_PROXY_PACKET)) { |
| 5554 | ret = (int) bytes; |
| 5555 | goto end; |
| 5556 | } |
| 5557 | |
| 5558 | if ((*flags & SFF_RTCP)) { |
| 5559 | *flags &= ~SFF_RTCP; |
| 5560 | has_rtcp = 1; |
| 5561 | goto rtcp; |
| 5562 | } |
| 5563 | |
| 5564 | |
| 5565 | } |
| 5566 | poll_loop = 0; |
| 5567 | } else { |
| 5568 | if (!SWITCH_STATUS_IS_BREAK(poll_status)(poll_status == SWITCH_STATUS_BREAK || poll_status == 730035 || poll_status == 35 || poll_status == SWITCH_STATUS_INTR) && poll_status != SWITCH_STATUS_TIMEOUT) { |
| 5569 | char tmp[128] = ""; |
| 5570 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5570, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Poll failed with error: %d [%s]\n", |
| 5571 | poll_status, switch_strerror_r(poll_status, tmp, sizeof(tmp))); |
| 5572 | ret = -1; |
| 5573 | goto end; |
| 5574 | } |
| 5575 | |
| 5576 | if (!rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 5577 | rtp_session->missed_count += (poll_sec * 1000) / (rtp_session->ms_per_packet ? rtp_session->ms_per_packet / 1000 : 20); |
| 5578 | bytes = 0; |
| 5579 | |
| 5580 | if (rtp_session->max_missed_packets) { |
| 5581 | if (rtp_session->missed_count >= rtp_session->max_missed_packets) { |
| 5582 | ret = -2; |
| 5583 | goto end; |
| 5584 | } |
| 5585 | } |
| 5586 | } |
| 5587 | |
| 5588 | if (using_ice(rtp_session)) { |
| 5589 | if (check_rtcp_and_ice(rtp_session) == -1) { |
| 5590 | ret = -1; |
| 5591 | goto end; |
| 5592 | } |
| 5593 | } |
| 5594 | |
| 5595 | if ((!(io_flags & SWITCH_IO_FLAG_NOBLOCK)) && |
| 5596 | (rtp_session->dtmf_data.out_digit_dur == 0)) { |
| 5597 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5598 | } |
| 5599 | } |
| 5600 | |
| 5601 | rtcp: |
| 5602 | |
| 5603 | if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 5604 | rtcp_poll_status = SWITCH_STATUS_FALSE; |
| 5605 | |
| 5606 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX] && has_rtcp) { |
| 5607 | if (rtp_session->rtcp_recv_msg_p->header.version == 2) { //rtcp muxed |
| 5608 | rtp_session->rtcp_from_addr = rtp_session->from_addr; |
| 5609 | rtcp_status = rtcp_poll_status = SWITCH_STATUS_SUCCESS; |
| 5610 | rtcp_bytes = bytes; |
| 5611 | } |
| 5612 | |
| 5613 | has_rtcp = 0; |
| 5614 | |
| 5615 | } else if (rtp_session->rtcp_read_pollfd) { |
| 5616 | rtcp_poll_status = switch_poll(rtp_session->rtcp_read_pollfd, 1, &rtcp_fdr, 0); |
| 5617 | } |
| 5618 | |
| 5619 | if (rtcp_poll_status == SWITCH_STATUS_SUCCESS) { |
| 5620 | |
| 5621 | if (!rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 5622 | rtcp_status = read_rtcp_packet(rtp_session, &rtcp_bytes, flags); |
| 5623 | } |
| 5624 | |
| 5625 | if (rtcp_status == SWITCH_STATUS_SUCCESS) { |
| 5626 | switch_rtp_reset_media_timer(rtp_session); |
| 5627 | |
| 5628 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] || rtp_session->rtcp_recv_msg_p->header.type == 206) { |
| 5629 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 5630 | const char *uuid = switch_channel_get_partner_uuid(channel); |
| 5631 | |
| 5632 | if (uuid) { |
| 5633 | switch_core_session_t *other_session; |
| 5634 | switch_rtp_t *other_rtp_session = NULL((void*)0); |
| 5635 | |
| 5636 | if ((other_session = switch_core_session_locate(uuid)switch_core_session_perform_locate(uuid, "src/switch_rtp.c", ( const char *)__func__, 5636))) { |
| 5637 | switch_channel_t *other_channel = switch_core_session_get_channel(other_session); |
| 5638 | if ((other_rtp_session = switch_channel_get_private(other_channel, "__rtcp_audio_rtp_session")) && |
| 5639 | other_rtp_session->rtcp_sock_output && |
| 5640 | switch_rtp_test_flag(other_rtp_session, SWITCH_RTP_FLAG_ENABLE_RTCP)) { |
| 5641 | other_rtp_session->rtcp_send_msg = rtp_session->rtcp_recv_msg; |
| 5642 | |
| 5643 | if (rtp_session->rtcp_recv_msg_p->header.type == 206) { |
| 5644 | rtcp_ext_msg_t *extp = (rtcp_ext_msg_t *) rtp_session->rtcp_recv_msg_p; |
| 5645 | extp->header.recv_ssrc = htonl(other_rtp_session->stats.rtcp.peer_ssrc)(__extension__ ({ unsigned int __v, __x = (other_rtp_session-> stats.rtcp.peer_ssrc); if (__builtin_constant_p (__x)) __v = ( (((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000 ) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x ) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 5646 | } |
| 5647 | |
| 5648 | |
| 5649 | #ifdef ENABLE_SRTP1 |
| 5650 | if (switch_rtp_test_flag(other_rtp_session, SWITCH_RTP_FLAG_SECURE_SEND)) { |
| 5651 | int sbytes = (int) rtcp_bytes; |
| 5652 | int stat = srtp_protect_rtcp(other_rtp_session->send_ctx[rtp_session->srtp_idx_rtcp], &other_rtp_session->rtcp_send_msg.header, &sbytes); |
| 5653 | if (stat) { |
| 5654 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5654, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP RTCP protection failed with code %d\n", stat); |
| 5655 | } |
| 5656 | rtcp_bytes = sbytes; |
| 5657 | |
| 5658 | } |
| 5659 | #endif |
| 5660 | |
| 5661 | #ifdef ENABLE_ZRTP |
| 5662 | /* ZRTP Send */ |
| 5663 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 5664 | unsigned int sbytes = (unsigned int) bytes; |
| 5665 | zrtp_status_t stat = zrtp_status_fail; |
| 5666 | |
| 5667 | stat = zrtp_process_rtcp(other_rtp_session->zrtp_stream, (void *) &other_rtp_session->rtcp_send_msg, &sbytes); |
| 5668 | |
| 5669 | switch (stat) { |
| 5670 | case zrtp_status_ok: |
| 5671 | break; |
| 5672 | case zrtp_status_drop: |
| 5673 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5673, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 5674 | ret = (int) bytes; |
| 5675 | goto end; |
| 5676 | break; |
| 5677 | case zrtp_status_fail: |
| 5678 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5678, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 5679 | break; |
| 5680 | default: |
| 5681 | break; |
| 5682 | } |
| 5683 | |
| 5684 | bytes = sbytes; |
| 5685 | } |
| 5686 | #endif |
| 5687 | if (switch_socket_sendto(other_rtp_session->rtcp_sock_output, other_rtp_session->rtcp_remote_addr, 0, |
| 5688 | (const char*)&other_rtp_session->rtcp_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) { |
| 5689 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5689, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG,"RTCP packet not written\n"); |
| 5690 | } |
| 5691 | |
| 5692 | |
| 5693 | } |
| 5694 | switch_core_session_rwunlock(other_session); |
| 5695 | } |
| 5696 | } |
| 5697 | |
| 5698 | } |
| 5699 | |
| 5700 | if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) { |
| 5701 | process_rtcp_packet(rtp_session, &bytes); |
| 5702 | ret = 1; |
| 5703 | |
| 5704 | if (!rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && rtp_session->timer.interval) { |
| 5705 | switch_core_timer_sync(&rtp_session->timer); |
| 5706 | reset_jitter_seq(rtp_session); |
| 5707 | } |
| 5708 | |
| 5709 | |
| 5710 | goto recvfrom; |
| 5711 | } |
| 5712 | } |
| 5713 | } |
| 5714 | } |
| 5715 | |
| 5716 | if (bytes && rtp_session->recv_msg.header.version == 2 && |
| 5717 | !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && |
| 5718 | rtp_session->recv_msg.header.pt != 13 && |
| 5719 | rtp_session->recv_msg.header.pt != rtp_session->recv_te && |
| 5720 | (!rtp_session->cng_pt || rtp_session->recv_msg.header.pt != rtp_session->cng_pt)) { |
| 5721 | int accept_packet = 1; |
| 5722 | |
| 5723 | |
| 5724 | if (rtp_session->pmaps && *rtp_session->pmaps) { |
| 5725 | payload_map_t *pmap; |
| 5726 | accept_packet = 0; |
| 5727 | |
| 5728 | switch_mutex_lock(rtp_session->flag_mutex); |
| 5729 | for (pmap = *rtp_session->pmaps; pmap && pmap->allocated; pmap = pmap->next) { |
| 5730 | |
| 5731 | if (!pmap->negotiated) { |
| 5732 | continue; |
| 5733 | } |
| 5734 | |
| 5735 | if (rtp_session->recv_msg.header.pt == pmap->pt) { |
| 5736 | accept_packet = 1; |
| 5737 | if (pmapP) { |
| 5738 | *pmapP = pmap; |
| 5739 | } |
| 5740 | break; |
| 5741 | } |
| 5742 | } |
| 5743 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 5744 | } |
| 5745 | |
| 5746 | if (!accept_packet && |
| 5747 | !(rtp_session->rtp_bugs & RTP_BUG_ACCEPT_ANY_PAYLOAD) && !(rtp_session->rtp_bugs & RTP_BUG_ACCEPT_ANY_PACKETS)) { |
| 5748 | /* drop frames of incorrect payload number and return CNG frame instead */ |
| 5749 | |
| 5750 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5751 | } |
| 5752 | } |
| 5753 | |
| 5754 | if (!bytes && (io_flags & SWITCH_IO_FLAG_NOBLOCK)) { |
| 5755 | rtp_session->missed_count = 0; |
| 5756 | ret = 0; |
| 5757 | goto end; |
| 5758 | } |
| 5759 | |
| 5760 | check = !bytes; |
| 5761 | |
| 5762 | if (rtp_session->flags[SWITCH_RTP_FLAG_FLUSH]) { |
| 5763 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 5764 | do_flush(rtp_session, SWITCH_FALSE); |
| 5765 | bytes = 0; |
| 5766 | } |
| 5767 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_FLUSH); |
| 5768 | } |
| 5769 | |
| 5770 | if (rtp_session->flags[SWITCH_RTP_FLAG_BREAK] || (bytes && bytes == 4 && *((int *) &rtp_session->recv_msg) == UINT_MAX(2147483647 *2U +1U))) { |
| 5771 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_BREAK); |
| 5772 | |
| 5773 | if (!rtp_session->flags[SWITCH_RTP_FLAG_NOBLOCK] || !rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] || |
| 5774 | rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] || |
| 5775 | (bytes && bytes < 5) || (!bytes && poll_loop)) { |
| 5776 | bytes = 0; |
| 5777 | reset_jitter_seq(rtp_session); |
| 5778 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5779 | } |
| 5780 | } |
| 5781 | |
| 5782 | if (bytes && bytes < 5) { |
| 5783 | continue; |
| 5784 | } |
| 5785 | |
| 5786 | if (!bytes && poll_loop) { |
| 5787 | goto recvfrom; |
| 5788 | } |
| 5789 | |
| 5790 | if (bytes && rtp_session->recv_msg.header.m && rtp_session->recv_msg.header.pt != rtp_session->recv_te && |
| 5791 | !rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && !(rtp_session->rtp_bugs & RTP_BUG_IGNORE_MARK_BIT)) { |
| 5792 | rtp_flush_read_buffer(rtp_session, SWITCH_RTP_FLUSH_ONCE); |
| 5793 | } |
| 5794 | |
| 5795 | |
| 5796 | if (((rtp_session->cng_pt && rtp_session->recv_msg.header.pt == rtp_session->cng_pt) || rtp_session->recv_msg.header.pt == 13)) { |
| 5797 | *flags |= SFF_NOT_AUDIO; |
| 5798 | } else { |
| 5799 | *flags &= ~SFF_NOT_AUDIO; /* If this flag was already set, make sure to remove it when we get real audio */ |
| 5800 | } |
| 5801 | |
| 5802 | |
| 5803 | /* ignore packets not meant for us unless the auto-adjust window is open */ |
| 5804 | if (bytes) { |
| 5805 | if (rtp_session->flags[SWITCH_RTP_FLAG_AUTOADJ]) { |
| 5806 | if (((rtp_session->cng_pt && rtp_session->recv_msg.header.pt == rtp_session->cng_pt) || rtp_session->recv_msg.header.pt == 13)) { |
| 5807 | goto recvfrom; |
| 5808 | |
| 5809 | } |
| 5810 | } else if (!(rtp_session->rtp_bugs & RTP_BUG_ACCEPT_ANY_PACKETS) && !switch_cmp_addr(rtp_session->from_addr, rtp_session->remote_addr)) { |
| 5811 | goto recvfrom; |
| 5812 | |
| 5813 | } |
| 5814 | } |
| 5815 | |
| 5816 | if (bytes && rtp_session->flags[SWITCH_RTP_FLAG_AUTOADJ] && switch_sockaddr_get_port(rtp_session->from_addr)) { |
| 5817 | if (!switch_cmp_addr(rtp_session->from_addr, rtp_session->remote_addr)) { |
| 5818 | if (++rtp_session->autoadj_tally >= rtp_session->autoadj_threshold) { |
| 5819 | const char *err; |
| 5820 | uint32_t old = rtp_session->remote_port; |
| 5821 | const char *tx_host; |
| 5822 | const char *old_host; |
| 5823 | char bufa[30], bufb[30]; |
| 5824 | char adj_port[6]; |
| 5825 | |
| 5826 | tx_host = switch_get_addr(bufa, sizeof(bufa), rtp_session->from_addr); |
| 5827 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->remote_addr); |
| 5828 | |
| 5829 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5829, (const char*)(rtp_session->session), SWITCH_LOG_INFO, |
| 5830 | "Auto Changing port from %s:%u to %s:%u\n", old_host, old, tx_host, |
| 5831 | switch_sockaddr_get_port(rtp_session->from_addr)); |
| 5832 | |
| 5833 | if (channel) { |
| 5834 | switch_channel_set_variable(channel, "remote_media_ip_reported", switch_channel_get_variable(channel, "remote_media_ip"))switch_channel_set_variable_var_check(channel, "remote_media_ip_reported" , switch_channel_get_variable_dup(channel, "remote_media_ip", SWITCH_TRUE, -1), SWITCH_TRUE); |
| 5835 | switch_channel_set_variable(channel, "remote_media_ip", tx_host)switch_channel_set_variable_var_check(channel, "remote_media_ip" , tx_host, SWITCH_TRUE); |
| 5836 | switch_snprintf(adj_port, sizeof(adj_port), "%u", switch_sockaddr_get_port(rtp_session->from_addr)); |
| 5837 | switch_channel_set_variable(channel, "remote_media_port_reported", switch_channel_get_variable(channel, "remote_media_port"))switch_channel_set_variable_var_check(channel, "remote_media_port_reported" , switch_channel_get_variable_dup(channel, "remote_media_port" , SWITCH_TRUE, -1), SWITCH_TRUE); |
| 5838 | switch_channel_set_variable(channel, "remote_media_port", adj_port)switch_channel_set_variable_var_check(channel, "remote_media_port" , adj_port, SWITCH_TRUE); |
| 5839 | switch_channel_set_variable(channel, "rtp_auto_adjust", "true")switch_channel_set_variable_var_check(channel, "rtp_auto_adjust" , "true", SWITCH_TRUE); |
| 5840 | } |
| 5841 | rtp_session->auto_adj_used = 1; |
| 5842 | switch_rtp_set_remote_address(rtp_session, tx_host, switch_sockaddr_get_port(rtp_session->from_addr), 0, SWITCH_FALSE, &err); |
| 5843 | if ((rtp_session->rtp_bugs & RTP_BUG_ALWAYS_AUTO_ADJUST)) { |
| 5844 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 5845 | } else { |
| 5846 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 5847 | } |
| 5848 | if (rtp_session->ice.ice_user) { |
| 5849 | rtp_session->ice.addr = rtp_session->remote_addr; |
| 5850 | } |
| 5851 | } |
| 5852 | } else { |
| 5853 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5853, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Correct ip/port confirmed.\n"); |
| 5854 | if ((rtp_session->rtp_bugs & RTP_BUG_ALWAYS_AUTO_ADJUST)) { |
| 5855 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 5856 | } else { |
| 5857 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 5858 | } |
| 5859 | rtp_session->auto_adj_used = 0; |
| 5860 | } |
| 5861 | } |
| 5862 | |
| 5863 | if (bytes && !(rtp_session->rtp_bugs & RTP_BUG_ALWAYS_AUTO_ADJUST) && rtp_session->autoadj_window) { |
| 5864 | if (--rtp_session->autoadj_window == 0) { |
| 5865 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_AUTOADJ); |
| 5866 | } |
| 5867 | } |
| 5868 | |
| 5869 | if (bytes && (rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || rtp_session->flags[SWITCH_RTP_FLAG_UDPTL])) { |
| 5870 | /* Fast PASS! */ |
| 5871 | *flags |= SFF_PROXY_PACKET; |
| 5872 | |
| 5873 | if (rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 5874 | #if 0 |
| 5875 | if (rtp_session->recv_msg.header.version == 2 && check_recv_payload(rtp_session)) { |
| 5876 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5876, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, |
| 5877 | "Ignoring udptl packet of size of %ld bytes that looks strikingly like a RTP packet.\n", (long)bytes); |
| 5878 | bytes = 0; |
| 5879 | goto do_continue; |
| 5880 | } |
| 5881 | #endif |
| 5882 | *flags |= SFF_UDPTL_PACKET; |
| 5883 | } |
| 5884 | |
| 5885 | ret = (int) bytes; |
| 5886 | goto end; |
| 5887 | } |
| 5888 | |
| 5889 | if (bytes) { |
| 5890 | rtp_session->missed_count = 0; |
| 5891 | |
| 5892 | if (bytes < rtp_header_len12) { |
| 5893 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5893, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "Ignoring invalid RTP packet size of %ld bytes.\n", (long)bytes); |
| 5894 | bytes = 0; |
| 5895 | goto do_continue; |
| 5896 | } |
| 5897 | |
| 5898 | if (rtp_session->recv_msg.header.pt && (rtp_session->recv_msg.header.pt == rtp_session->cng_pt || rtp_session->recv_msg.header.pt == 13)) { |
| 5899 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5900 | } |
| 5901 | } |
| 5902 | |
| 5903 | if (check || bytes) { |
| 5904 | do_2833(rtp_session); |
| 5905 | } |
| 5906 | |
| 5907 | if (bytes && rtp_session->recv_msg.header.version != 2) { |
| 5908 | uint8_t *data = (uint8_t *) RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body); |
| 5909 | |
| 5910 | if (rtp_session->recv_msg.header.version == 0) { |
| 5911 | if (rtp_session->ice.ice_user) { |
| 5912 | handle_ice(rtp_session, &rtp_session->ice, (void *) &rtp_session->recv_msg, bytes); |
| 5913 | goto recvfrom; |
| 5914 | } |
| 5915 | } |
| 5916 | |
| 5917 | if (rtp_session->invalid_handler) { |
| 5918 | rtp_session->invalid_handler(rtp_session, rtp_session->sock_input, (void *) &rtp_session->recv_msg, bytes, rtp_session->from_addr); |
| 5919 | } |
| 5920 | |
| 5921 | memset(data, 0, 2); |
| 5922 | data[0] = 65; |
| 5923 | |
| 5924 | rtp_session->recv_msg.header.pt = (uint32_t) rtp_session->cng_pt ? rtp_session->cng_pt : SWITCH_RTP_CNG_PAYLOAD13; |
| 5925 | *flags |= SFF_CNG; |
| 5926 | *payload_type = (switch_payload_t) rtp_session->recv_msg.header.pt; |
| 5927 | ret = 2 + rtp_header_len12; |
| 5928 | goto end; |
| 5929 | } else if (bytes) { |
| 5930 | rtp_session->stats.inbound.period_packet_count++; |
| 5931 | } |
| 5932 | |
| 5933 | |
| 5934 | /* Handle incoming RFC2833 packets */ |
| 5935 | switch (handle_rfc2833(rtp_session, bytes, &do_cng)) { |
| 5936 | case RESULT_GOTO_END: |
| 5937 | goto end; |
| 5938 | case RESULT_GOTO_RECVFROM: |
| 5939 | goto recvfrom; |
| 5940 | case RESULT_GOTO_TIMERCHECK: |
| 5941 | goto timer_check; |
| 5942 | case RESULT_CONTINUE: |
| 5943 | goto result_continue; |
| 5944 | } |
| 5945 | |
| 5946 | result_continue: |
| 5947 | timer_check: |
| 5948 | |
| 5949 | if (rtp_session->flags[SWITCH_RTP_FLAG_MUTE]) { |
| 5950 | do_cng++; |
| 5951 | } |
| 5952 | |
| 5953 | if (do_cng) { |
| 5954 | uint8_t *data = (uint8_t *) RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body); |
| 5955 | |
| 5956 | do_2833(rtp_session); |
| 5957 | |
| 5958 | if (rtp_session->last_cng_ts == rtp_session->last_read_ts + rtp_session->samples_per_interval) { |
| 5959 | rtp_session->last_cng_ts = 0; |
| 5960 | } else { |
| 5961 | rtp_session->last_cng_ts = rtp_session->last_read_ts + rtp_session->samples_per_interval; |
| 5962 | } |
| 5963 | |
| 5964 | memset(data, 0, 2); |
| 5965 | data[0] = 65; |
| 5966 | rtp_session->recv_msg.header.pt = (uint32_t) rtp_session->cng_pt ? rtp_session->cng_pt : SWITCH_RTP_CNG_PAYLOAD13; |
| 5967 | *flags |= SFF_CNG; |
| 5968 | *payload_type = (switch_payload_t) rtp_session->recv_msg.header.pt; |
| 5969 | ret = 2 + rtp_header_len12; |
| 5970 | rtp_session->stats.inbound.skip_packet_count++; |
| 5971 | goto end; |
| 5972 | } |
| 5973 | |
| 5974 | |
| 5975 | if (check || (bytes && !rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER])) { |
| 5976 | if (!bytes && rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { /* We're late! We're Late! */ |
| 5977 | if (!rtp_session->flags[SWITCH_RTP_FLAG_NOBLOCK] && status == SWITCH_STATUS_BREAK) { |
| 5978 | switch_cond_next(); |
| 5979 | continue; |
| 5980 | } |
| 5981 | |
| 5982 | |
| 5983 | |
| 5984 | if (!rtp_session->flags[SWITCH_RTP_FLAG_PAUSE] && !rtp_session->flags[SWITCH_RTP_FLAG_DTMF_ON] && !rtp_session->dtmf_data.in_digit_ts |
| 5985 | && rtp_session->cng_count > (rtp_session->one_second * 2) && rtp_session->jitter_lead > JITTER_LEAD_FRAMES10) { |
| 5986 | |
| 5987 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 5987, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG1, "%s %s timeout\n", |
| 5988 | rtp_session_name(rtp_session)rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel (rtp_session->session)) : "-", rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio"); |
| 5989 | |
| 5990 | rtp_session->stats.inbound.flaws++; |
| 5991 | do_mos(rtp_session, SWITCH_FALSE); |
| 5992 | } |
| 5993 | |
| 5994 | rtp_session->cng_count++; |
| 5995 | return_cng_frame()do_cng = 1; goto timer_check; |
| 5996 | } |
| 5997 | } |
| 5998 | |
| 5999 | rtp_session->cng_count = 0; |
| 6000 | |
| 6001 | if (status == SWITCH_STATUS_BREAK || bytes == 0) { |
| 6002 | if (!(io_flags & SWITCH_IO_FLAG_SINGLE_READ) && rtp_session->flags[SWITCH_RTP_FLAG_DATAWAIT]) { |
| 6003 | goto do_continue; |
| 6004 | } |
| 6005 | return_cng_frame()do_cng = 1; goto timer_check; |
| 6006 | } |
| 6007 | |
| 6008 | if (rtp_session->flags[SWITCH_RTP_FLAG_GOOGLEHACK] && rtp_session->recv_msg.header.pt == 102) { |
| 6009 | rtp_session->recv_msg.header.pt = 97; |
| 6010 | } |
| 6011 | |
| 6012 | break; |
| 6013 | |
| 6014 | do_continue: |
| 6015 | |
| 6016 | if (!bytes && !rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 6017 | switch_yield(sleep_mss)switch_sleep(sleep_mss);; |
| 6018 | } |
| 6019 | |
| 6020 | } |
| 6021 | |
| 6022 | if (switch_rtp_ready(rtp_session)) { |
| 6023 | *payload_type = (switch_payload_t) rtp_session->recv_msg.header.pt; |
| 6024 | |
| 6025 | if (*payload_type == SWITCH_RTP_CNG_PAYLOAD13) { |
| 6026 | *flags |= SFF_CNG; |
| 6027 | } |
| 6028 | |
| 6029 | ret = (int) bytes; |
| 6030 | } else { |
| 6031 | ret = -1; |
| 6032 | } |
| 6033 | |
| 6034 | end: |
| 6035 | |
| 6036 | READ_DEC(rtp_session)switch_mutex_unlock(rtp_session->read_mutex); rtp_session-> reading--; |
| 6037 | |
| 6038 | return ret; |
| 6039 | } |
| 6040 | |
| 6041 | |
| 6042 | SWITCH_DECLARE(switch_byte_t)__attribute__((visibility("default"))) switch_byte_t switch_rtp_check_auto_adj(switch_rtp_t *rtp_session) |
| 6043 | { |
| 6044 | return rtp_session->auto_adj_used; |
| 6045 | } |
| 6046 | |
| 6047 | SWITCH_DECLARE(switch_size_t)__attribute__((visibility("default"))) switch_size_t switch_rtp_has_dtmf(switch_rtp_t *rtp_session) |
| 6048 | { |
| 6049 | switch_size_t has = 0; |
| 6050 | |
| 6051 | if (switch_rtp_ready(rtp_session)) { |
| 6052 | switch_mutex_lock(rtp_session->dtmf_data.dtmf_mutex); |
| 6053 | has = switch_queue_size(rtp_session->dtmf_data.dtmf_inqueue); |
| 6054 | switch_mutex_unlock(rtp_session->dtmf_data.dtmf_mutex); |
| 6055 | } |
| 6056 | |
| 6057 | return has; |
| 6058 | } |
| 6059 | |
| 6060 | SWITCH_DECLARE(switch_size_t)__attribute__((visibility("default"))) switch_size_t switch_rtp_dequeue_dtmf(switch_rtp_t *rtp_session, switch_dtmf_t *dtmf) |
| 6061 | { |
| 6062 | switch_size_t bytes = 0; |
| 6063 | switch_dtmf_t *_dtmf = NULL((void*)0); |
| 6064 | void *pop; |
| 6065 | |
| 6066 | if (!switch_rtp_ready(rtp_session)) { |
| 6067 | return bytes; |
| 6068 | } |
| 6069 | |
| 6070 | switch_mutex_lock(rtp_session->dtmf_data.dtmf_mutex); |
| 6071 | if (switch_queue_trypop(rtp_session->dtmf_data.dtmf_inqueue, &pop) == SWITCH_STATUS_SUCCESS) { |
| 6072 | |
| 6073 | _dtmf = (switch_dtmf_t *) pop; |
| 6074 | *dtmf = *_dtmf; |
| 6075 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6075, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "RTP RECV DTMF %c:%d\n", dtmf->digit, dtmf->duration); |
| 6076 | bytes++; |
| 6077 | free(pop); |
| 6078 | } |
| 6079 | switch_mutex_unlock(rtp_session->dtmf_data.dtmf_mutex); |
| 6080 | |
| 6081 | return bytes; |
| 6082 | } |
| 6083 | |
| 6084 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_queue_rfc2833(switch_rtp_t *rtp_session, const switch_dtmf_t *dtmf) |
| 6085 | { |
| 6086 | |
| 6087 | switch_dtmf_t *rdigit; |
| 6088 | |
| 6089 | if (!switch_rtp_ready(rtp_session)) { |
| 6090 | return SWITCH_STATUS_FALSE; |
| 6091 | } |
| 6092 | |
| 6093 | if ((rdigit = malloc(sizeof(*rdigit))) != 0) { |
| 6094 | *rdigit = *dtmf; |
| 6095 | if (rdigit->duration < switch_core_min_dtmf_duration(0)) { |
| 6096 | rdigit->duration = switch_core_min_dtmf_duration(0); |
| 6097 | } |
| 6098 | |
| 6099 | if ((switch_queue_trypush(rtp_session->dtmf_data.dtmf_queue, rdigit)) != SWITCH_STATUS_SUCCESS) { |
| 6100 | free(rdigit); |
| 6101 | return SWITCH_STATUS_FALSE; |
| 6102 | } |
| 6103 | } else { |
| 6104 | abort(); |
| 6105 | } |
| 6106 | |
| 6107 | return SWITCH_STATUS_SUCCESS; |
| 6108 | } |
| 6109 | |
| 6110 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_queue_rfc2833_in(switch_rtp_t *rtp_session, const switch_dtmf_t *dtmf) |
| 6111 | { |
| 6112 | switch_dtmf_t *rdigit; |
| 6113 | |
| 6114 | if (!switch_rtp_ready(rtp_session)) { |
| 6115 | return SWITCH_STATUS_FALSE; |
| 6116 | } |
| 6117 | |
| 6118 | if ((rdigit = malloc(sizeof(*rdigit))) != 0) { |
| 6119 | *rdigit = *dtmf; |
| 6120 | if (rdigit->duration < switch_core_min_dtmf_duration(0)) { |
| 6121 | rdigit->duration = switch_core_min_dtmf_duration(0); |
| 6122 | } |
| 6123 | |
| 6124 | if ((switch_queue_trypush(rtp_session->dtmf_data.dtmf_inqueue, rdigit)) != SWITCH_STATUS_SUCCESS) { |
| 6125 | free(rdigit); |
| 6126 | return SWITCH_STATUS_FALSE; |
| 6127 | } |
| 6128 | } else { |
| 6129 | abort(); |
| 6130 | } |
| 6131 | |
| 6132 | return SWITCH_STATUS_SUCCESS; |
| 6133 | } |
| 6134 | |
| 6135 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_read(switch_rtp_t *rtp_session, void *data, uint32_t *datalen, |
| 6136 | switch_payload_t *payload_type, switch_frame_flag_t *flags, switch_io_flag_t io_flags) |
| 6137 | { |
| 6138 | int bytes = 0; |
| 6139 | |
| 6140 | if (!switch_rtp_ready(rtp_session)) { |
| 6141 | return SWITCH_STATUS_FALSE; |
| 6142 | } |
| 6143 | |
| 6144 | bytes = rtp_common_read(rtp_session, payload_type, NULL((void*)0), flags, io_flags); |
| 6145 | |
| 6146 | if (bytes < 0) { |
| 6147 | *datalen = 0; |
| 6148 | return bytes == -2 ? SWITCH_STATUS_TIMEOUT : SWITCH_STATUS_GENERR; |
| 6149 | } else if (bytes == 0) { |
| 6150 | *datalen = 0; |
| 6151 | return SWITCH_STATUS_BREAK; |
| 6152 | } else { |
| 6153 | if (bytes > rtp_header_len12) { |
| 6154 | bytes -= rtp_header_len12; |
| 6155 | } |
| 6156 | } |
| 6157 | |
| 6158 | *datalen = bytes; |
| 6159 | |
| 6160 | memcpy(data, RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body), bytes); |
| 6161 | |
| 6162 | return SWITCH_STATUS_SUCCESS; |
| 6163 | } |
| 6164 | |
| 6165 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtcp_zerocopy_read_frame(switch_rtp_t *rtp_session, switch_rtcp_frame_t *frame) |
| 6166 | { |
| 6167 | |
| 6168 | |
| 6169 | |
| 6170 | if (!rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) { |
| 6171 | return SWITCH_STATUS_FALSE; |
| 6172 | } |
| 6173 | |
| 6174 | /* A fresh frame has been found! */ |
| 6175 | if (rtp_session->rtcp_fresh_frame) { |
| 6176 | struct switch_rtcp_sender_report* sr = (struct switch_rtcp_sender_report*)rtp_session->rtcp_recv_msg.body; |
| 6177 | int i = 0; |
| 6178 | |
| 6179 | /* turn the flag off! */ |
| 6180 | rtp_session->rtcp_fresh_frame = 0; |
| 6181 | |
| 6182 | frame->ssrc = ntohl(sr->ssrc)(__extension__ ({ unsigned int __v, __x = (sr->ssrc); if ( __builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00 ) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 6183 | frame->packet_type = (uint16_t)rtp_session->rtcp_recv_msg.header.type; |
| 6184 | frame->ntp_msw = ntohl(sr->sender_info.ntp_msw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_msw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 6185 | frame->ntp_lsw = ntohl(sr->sender_info.ntp_lsw)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ntp_lsw); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 6186 | frame->timestamp = ntohl(sr->sender_info.ts)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6187 | frame->packet_count = ntohl(sr->sender_info.pc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .pc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6188 | frame->octect_count = ntohl(sr->sender_info.oc)(__extension__ ({ unsigned int __v, __x = (sr->sender_info .oc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6189 | |
| 6190 | for (i = 0; i < (int)rtp_session->rtcp_recv_msg_p->header.count && i < MAX_REPORT_BLOCKS5 ; i++) { |
| 6191 | struct switch_rtcp_report_block* report = (struct switch_rtcp_report_block*) (rtp_session->rtcp_recv_msg_p->body + (sizeof(struct switch_rtcp_sr_head) + (i * sizeof(struct switch_rtcp_report_block)))); |
| 6192 | frame->reports[i].ssrc = ntohl(report->ssrc)(__extension__ ({ unsigned int __v, __x = (report->ssrc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6193 | frame->reports[i].fraction = (uint8_t)ntohl(report->fraction)(__extension__ ({ unsigned int __v, __x = (report->fraction ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6194 | frame->reports[i].lost = ntohl(report->lost)(__extension__ ({ unsigned int __v, __x = (report->lost); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6195 | frame->reports[i].highest_sequence_number_received = ntohl(report->highest_sequence_number_received)(__extension__ ({ unsigned int __v, __x = (report->highest_sequence_number_received ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6196 | frame->reports[i].jitter = ntohl(report->jitter)(__extension__ ({ unsigned int __v, __x = (report->jitter) ; if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6197 | frame->reports[i].lsr = ntohl(report->lsr)(__extension__ ({ unsigned int __v, __x = (report->lsr); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6198 | frame->reports[i].dlsr = ntohl(report->dlsr)(__extension__ ({ unsigned int __v, __x = (report->dlsr); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6199 | if (i >= MAX_REPORT_BLOCKS5) { |
| 6200 | break; |
| 6201 | } |
| 6202 | } |
| 6203 | frame->report_count = (uint16_t)i; |
| 6204 | |
| 6205 | return SWITCH_STATUS_SUCCESS; |
| 6206 | } |
| 6207 | |
| 6208 | return SWITCH_STATUS_TIMEOUT; |
| 6209 | } |
| 6210 | |
| 6211 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_zerocopy_read_frame(switch_rtp_t *rtp_session, switch_frame_t *frame, switch_io_flag_t io_flags) |
| 6212 | { |
| 6213 | int bytes = 0; |
| 6214 | |
| 6215 | if (!switch_rtp_ready(rtp_session)) { |
| 6216 | return SWITCH_STATUS_FALSE; |
| 6217 | } |
| 6218 | |
| 6219 | bytes = rtp_common_read(rtp_session, &frame->payload, &frame->pmap, &frame->flags, io_flags); |
| 6220 | |
| 6221 | frame->data = RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body); |
| 6222 | frame->packet = &rtp_session->recv_msg; |
| 6223 | frame->packetlen = bytes; |
| 6224 | frame->source = __FILE__"src/switch_rtp.c"; |
| 6225 | |
| 6226 | switch_set_flag(frame, SFF_RAW_RTP)(frame)->flags |= (SFF_RAW_RTP); |
| 6227 | if (frame->payload == rtp_session->recv_te) { |
| 6228 | switch_set_flag(frame, SFF_RFC2833)(frame)->flags |= (SFF_RFC2833); |
| 6229 | } |
| 6230 | frame->timestamp = ntohl(rtp_session->recv_msg.header.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 6231 | frame->seq = (uint16_t) ntohs((uint16_t) rtp_session->recv_msg.header.seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) ((uint16_t) rtp_session->recv_msg.header.seq); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 6232 | frame->ssrc = ntohl(rtp_session->recv_msg.header.ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->recv_msg .header.ssrc); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff ) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" ( __x)); __v; })); |
| 6233 | frame->m = rtp_session->recv_msg.header.m ? SWITCH_TRUE : SWITCH_FALSE; |
| 6234 | |
| 6235 | #ifdef ENABLE_ZRTP |
| 6236 | if (zrtp_on && rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV]) { |
| 6237 | zrtp_session_info_t zrtp_session_info; |
| 6238 | |
| 6239 | if (rtp_session->zrtp_session && (zrtp_status_ok == zrtp_session_get(rtp_session->zrtp_session, &zrtp_session_info))) { |
| 6240 | if (zrtp_session_info.sas_is_ready) { |
| 6241 | |
| 6242 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 6243 | |
| 6244 | const char *uuid = switch_channel_get_partner_uuid(channel); |
| 6245 | if (uuid) { |
| 6246 | switch_core_session_t *other_session; |
| 6247 | |
| 6248 | if ((other_session = switch_core_session_locate(uuid)switch_core_session_perform_locate(uuid, "src/switch_rtp.c", ( const char *)__func__, 6248))) { |
| 6249 | switch_channel_t *other_channel = switch_core_session_get_channel(other_session); |
| 6250 | switch_rtp_t *other_rtp_session = switch_channel_get_private(other_channel, "__zrtp_audio_rtp_session"); |
| 6251 | |
| 6252 | if (other_rtp_session) { |
| 6253 | if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_INBOUND) { |
| 6254 | switch_mutex_lock(other_rtp_session->read_mutex); |
| 6255 | if (zrtp_status_ok == zrtp_session_get(other_rtp_session->zrtp_session, &zrtp_session_info)) { |
| 6256 | if (rtp_session->zrtp_mitm_tries > ZRTP_MITM_TRIES) { |
| 6257 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_RECV); |
| 6258 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_SEND); |
| 6259 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 6260 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 6261 | } else if (zrtp_status_ok == zrtp_resolve_mitm_call(other_rtp_session->zrtp_stream, rtp_session->zrtp_stream)) { |
| 6262 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 6263 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 6264 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_RECV); |
| 6265 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_SEND); |
| 6266 | rtp_session->zrtp_mitm_tries++; |
| 6267 | } |
| 6268 | } |
| 6269 | switch_mutex_unlock(other_rtp_session->read_mutex); |
| 6270 | } |
| 6271 | } |
| 6272 | |
| 6273 | switch_core_session_rwunlock(other_session); |
| 6274 | } |
| 6275 | } |
| 6276 | } |
| 6277 | } else { |
| 6278 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 6279 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 6280 | } |
| 6281 | } |
| 6282 | #endif |
| 6283 | |
| 6284 | if (bytes < 0) { |
| 6285 | frame->datalen = 0; |
| 6286 | return bytes == -2 ? SWITCH_STATUS_TIMEOUT : SWITCH_STATUS_GENERR; |
| 6287 | } else if (bytes < rtp_header_len12) { |
| 6288 | frame->datalen = 0; |
| 6289 | return SWITCH_STATUS_BREAK; |
| 6290 | } else { |
| 6291 | bytes -= rtp_header_len12; |
| 6292 | } |
| 6293 | |
| 6294 | frame->datalen = bytes; |
| 6295 | return SWITCH_STATUS_SUCCESS; |
| 6296 | } |
| 6297 | |
| 6298 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_zerocopy_read(switch_rtp_t *rtp_session, |
| 6299 | void **data, uint32_t *datalen, switch_payload_t *payload_type, switch_frame_flag_t *flags, |
| 6300 | switch_io_flag_t io_flags) |
| 6301 | { |
| 6302 | int bytes = 0; |
| 6303 | |
| 6304 | if (!switch_rtp_ready(rtp_session)) { |
| 6305 | return SWITCH_STATUS_FALSE; |
| 6306 | } |
| 6307 | |
| 6308 | bytes = rtp_common_read(rtp_session, payload_type, NULL((void*)0), flags, io_flags); |
| 6309 | *data = RTP_BODY(rtp_session)(char *) (rtp_session->recv_msg.ebody ? rtp_session->recv_msg .ebody : rtp_session->recv_msg.body); |
| 6310 | |
| 6311 | if (bytes < 0) { |
| 6312 | *datalen = 0; |
| 6313 | return SWITCH_STATUS_GENERR; |
| 6314 | } else { |
| 6315 | if (bytes > rtp_header_len12) { |
| 6316 | bytes -= rtp_header_len12; |
| 6317 | } |
| 6318 | } |
| 6319 | |
| 6320 | *datalen = bytes; |
| 6321 | return SWITCH_STATUS_SUCCESS; |
| 6322 | } |
| 6323 | |
| 6324 | static int rtp_write_ready(switch_rtp_t *rtp_session, uint32_t bytes, int line) |
| 6325 | { |
| 6326 | if (rtp_session->ice.ice_user && !(rtp_session->ice.rready)) { |
| 6327 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 6327, ((void*)0), SWITCH_LOG_DEBUG1, "Skip sending %s packet %ld bytes (ice not ready @ line %d!)\n", |
| 6328 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", (long)bytes, line); |
| 6329 | return 0; |
| 6330 | } |
| 6331 | |
| 6332 | if (rtp_session->dtls && rtp_session->dtls->state != DS_READY) { |
| 6333 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 6333, ((void*)0), SWITCH_LOG_DEBUG1, "Skip sending %s packet %ld bytes (dtls not ready @ line %d!)\n", |
| 6334 | rtp_type(rtp_session)rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] ? "video" : "audio", (long)bytes, line); |
| 6335 | return 0; |
| 6336 | } |
| 6337 | |
| 6338 | return 1; |
| 6339 | } |
| 6340 | |
| 6341 | |
| 6342 | |
| 6343 | |
| 6344 | static int rtp_common_write(switch_rtp_t *rtp_session, |
| 6345 | rtp_msg_t *send_msg, void *data, uint32_t datalen, switch_payload_t payload, uint32_t timestamp, switch_frame_flag_t *flags) |
| 6346 | { |
| 6347 | switch_size_t bytes; |
| 6348 | uint8_t send = 1; |
| 6349 | uint32_t this_ts = 0; |
| 6350 | int ret; |
| 6351 | switch_time_t now; |
| 6352 | uint8_t m = 0; |
| 6353 | |
| 6354 | if (!switch_rtp_ready(rtp_session)) { |
| 6355 | return -1; |
| 6356 | } |
| 6357 | |
| 6358 | if (!rtp_write_ready(rtp_session, datalen, __LINE__6358)) { |
| 6359 | return 0; |
| 6360 | } |
| 6361 | |
| 6362 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 6363 | |
| 6364 | if (send_msg) { |
| 6365 | bytes = datalen; |
| 6366 | |
| 6367 | m = (uint8_t) send_msg->header.m; |
| 6368 | |
| 6369 | if (flags && *flags & SFF_RFC2833) { |
| 6370 | send_msg->header.pt = rtp_session->te; |
| 6371 | } |
| 6372 | data = send_msg->body; |
| 6373 | if (datalen > rtp_header_len12) { |
| 6374 | datalen -= rtp_header_len12; |
| 6375 | } |
| 6376 | } else { |
| 6377 | if (*flags & SFF_RFC2833) { |
| 6378 | payload = rtp_session->te; |
| 6379 | } |
| 6380 | |
| 6381 | send_msg = &rtp_session->send_msg; |
| 6382 | send_msg->header.pt = payload; |
| 6383 | |
| 6384 | m = get_next_write_ts(rtp_session, timestamp); |
| 6385 | |
| 6386 | rtp_session->send_msg.header.ts = htonl(rtp_session->ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->ts ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6387 | |
| 6388 | memcpy(send_msg->body, data, datalen); |
| 6389 | bytes = datalen + rtp_header_len12; |
| 6390 | } |
| 6391 | |
| 6392 | if (!switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO)) { |
| 6393 | |
| 6394 | if ((rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) { |
| 6395 | m = 0; |
| 6396 | } else { |
| 6397 | if ((!rtp_session->flags[SWITCH_RTP_FLAG_RESET] && rtp_session->ts > (rtp_session->last_write_ts + (rtp_session->samples_per_interval * 10))) |
| 6398 | || rtp_session->ts == rtp_session->samples_per_interval) { |
| 6399 | m++; |
| 6400 | } |
| 6401 | |
| 6402 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && |
| 6403 | (rtp_session->timer.samplecount - rtp_session->last_write_samplecount) > rtp_session->samples_per_interval * 10) { |
| 6404 | m++; |
| 6405 | } |
| 6406 | |
| 6407 | if (!rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER] && |
| 6408 | ((unsigned) ((switch_micro_time_now() - rtp_session->last_write_timestamp))) > (rtp_session->ms_per_packet * 10)) { |
| 6409 | m++; |
| 6410 | } |
| 6411 | |
| 6412 | if (rtp_session->cn && payload != rtp_session->cng_pt) { |
| 6413 | rtp_session->cn = 0; |
| 6414 | m++; |
| 6415 | } |
| 6416 | |
| 6417 | if (rtp_session->need_mark && !rtp_session->sending_dtmf) { |
| 6418 | m++; |
| 6419 | rtp_session->need_mark = 0; |
| 6420 | } |
| 6421 | } |
| 6422 | |
| 6423 | if (m) { |
| 6424 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 1; |
| 6425 | rtp_session->ts = 0; |
| 6426 | } |
| 6427 | |
| 6428 | /* If the marker was set, and the timestamp seems to have started over - set a new SSRC, to indicate this is a new stream */ |
| 6429 | if (m && !switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_SEND) && (rtp_session->rtp_bugs & RTP_BUG_CHANGE_SSRC_ON_MARKER) && |
| 6430 | (rtp_session->flags[SWITCH_RTP_FLAG_RESET] || (rtp_session->ts <= rtp_session->last_write_ts && rtp_session->last_write_ts > 0))) { |
| 6431 | switch_rtp_set_ssrc(rtp_session, (uint32_t) ((intptr_t) rtp_session + (uint32_t) switch_epoch_time_now(NULL((void*)0)))); |
| 6432 | } |
| 6433 | |
| 6434 | if (!switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO) && !switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL)) { |
| 6435 | send_msg->header.m = (m && !(rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) ? 1 : 0; |
| 6436 | } |
| 6437 | } |
| 6438 | |
| 6439 | |
| 6440 | if (switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO)) { |
| 6441 | /* Normalize the timestamps to our own base by generating a made up starting point then adding the measured deltas to that base |
| 6442 | so if the timestamps and ssrc of the source change, it will not break the other end's jitter bufffer / decoder etc *cough* CHROME *cough* |
| 6443 | */ |
| 6444 | |
| 6445 | if (!rtp_session->ts_norm.ts) { |
| 6446 | rtp_session->ts_norm.ts = (uint32_t) rand() % 1000000 + 1; |
| 6447 | } |
| 6448 | |
| 6449 | if (!rtp_session->ts_norm.last_ssrc || send_msg->header.ssrc != rtp_session->ts_norm.last_ssrc) { |
| 6450 | if (rtp_session->ts_norm.last_ssrc) { |
| 6451 | rtp_session->ts_norm.delta_ct = 1; |
| 6452 | rtp_session->ts_norm.delta_ttl = 0; |
| 6453 | if (rtp_session->ts_norm.delta) { |
| 6454 | rtp_session->ts_norm.ts += rtp_session->ts_norm.delta; |
| 6455 | } |
| 6456 | } |
| 6457 | rtp_session->ts_norm.last_ssrc = send_msg->header.ssrc; |
| 6458 | rtp_session->ts_norm.last_frame = ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6459 | } |
| 6460 | |
| 6461 | |
| 6462 | if (ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })) != rtp_session->ts_norm.last_frame) { |
| 6463 | rtp_session->ts_norm.delta = ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })) - rtp_session->ts_norm.last_frame; |
| 6464 | rtp_session->ts_norm.ts += rtp_session->ts_norm.delta; |
| 6465 | } |
| 6466 | |
| 6467 | rtp_session->ts_norm.last_frame = ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6468 | send_msg->header.ts = htonl(rtp_session->ts_norm.ts)(__extension__ ({ unsigned int __v, __x = (rtp_session->ts_norm .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6469 | |
| 6470 | } |
| 6471 | |
| 6472 | send_msg->header.ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6473 | |
| 6474 | if (rtp_session->flags[SWITCH_RTP_FLAG_GOOGLEHACK] && rtp_session->send_msg.header.pt == 97) { |
| 6475 | rtp_session->recv_msg.header.pt = 102; |
| 6476 | } |
| 6477 | |
| 6478 | if (rtp_session->flags[SWITCH_RTP_FLAG_VAD] && |
| 6479 | rtp_session->recv_msg.header.pt == rtp_session->vad_data.read_codec->implementation->ianacode) { |
| 6480 | |
| 6481 | int16_t decoded[SWITCH_RECOMMENDED_BUFFER_SIZE8192 / sizeof(int16_t)] = { 0 }; |
| 6482 | uint32_t rate = 0; |
| 6483 | uint32_t codec_flags = 0; |
| 6484 | uint32_t len = sizeof(decoded); |
| 6485 | time_t now = switch_epoch_time_now(NULL((void*)0)); |
| 6486 | send = 0; |
| 6487 | |
| 6488 | if (rtp_session->vad_data.scan_freq && rtp_session->vad_data.next_scan <= now) { |
| 6489 | rtp_session->vad_data.bg_count = rtp_session->vad_data.bg_level = 0; |
| 6490 | rtp_session->vad_data.next_scan = now + rtp_session->vad_data.scan_freq; |
| 6491 | } |
| 6492 | |
| 6493 | if (switch_core_codec_decode(&rtp_session->vad_data.vad_codec, |
| 6494 | rtp_session->vad_data.read_codec, |
| 6495 | data, |
| 6496 | datalen, |
| 6497 | rtp_session->vad_data.read_codec->implementation->actual_samples_per_second, |
| 6498 | decoded, &len, &rate, &codec_flags) == SWITCH_STATUS_SUCCESS) { |
| 6499 | |
| 6500 | uint32_t energy = 0; |
| 6501 | uint32_t x, y = 0, z = len / sizeof(int16_t); |
| 6502 | uint32_t score = 0; |
| 6503 | int divisor = 0; |
| 6504 | if (z) { |
| 6505 | |
| 6506 | if (!(divisor = rtp_session->vad_data.read_codec->implementation->actual_samples_per_second / 8000)) { |
| 6507 | divisor = 1; |
| 6508 | } |
| 6509 | |
| 6510 | for (x = 0; x < z; x++) { |
| 6511 | energy += abs(decoded[y]); |
| 6512 | y += rtp_session->vad_data.read_codec->implementation->number_of_channels; |
| 6513 | } |
| 6514 | |
| 6515 | if (++rtp_session->vad_data.start_count < rtp_session->vad_data.start) { |
| 6516 | send = 1; |
| 6517 | } else { |
| 6518 | score = (energy / (z / divisor)); |
| 6519 | if (score && (rtp_session->vad_data.bg_count < rtp_session->vad_data.bg_len)) { |
| 6520 | rtp_session->vad_data.bg_level += score; |
| 6521 | if (++rtp_session->vad_data.bg_count == rtp_session->vad_data.bg_len) { |
| 6522 | rtp_session->vad_data.bg_level /= rtp_session->vad_data.bg_len; |
| 6523 | } |
| 6524 | send = 1; |
| 6525 | } else { |
| 6526 | if (score > rtp_session->vad_data.bg_level && !switch_test_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_TALKING)((&rtp_session->vad_data)->flags & SWITCH_VAD_FLAG_TALKING )) { |
| 6527 | uint32_t diff = score - rtp_session->vad_data.bg_level; |
| 6528 | |
| 6529 | if (rtp_session->vad_data.hangover_hits) { |
| 6530 | rtp_session->vad_data.hangover_hits--; |
| 6531 | } |
| 6532 | |
| 6533 | if (diff >= rtp_session->vad_data.diff_level || ++rtp_session->vad_data.hangunder_hits >= rtp_session->vad_data.hangunder) { |
| 6534 | |
| 6535 | switch_set_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_TALKING)(&rtp_session->vad_data)->flags |= (SWITCH_VAD_FLAG_TALKING ); |
| 6536 | if (!(rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) { |
| 6537 | send_msg->header.m = 1; |
| 6538 | } |
| 6539 | rtp_session->vad_data.hangover_hits = rtp_session->vad_data.hangunder_hits = rtp_session->vad_data.cng_count = 0; |
| 6540 | if (switch_test_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_EVENTS_TALK)((&rtp_session->vad_data)->flags & SWITCH_VAD_FLAG_EVENTS_TALK )) { |
| 6541 | |
| 6542 | if ((rtp_session->vad_data.fire_events & VAD_FIRE_TALK)) { |
| 6543 | switch_event_t *event; |
| 6544 | if (switch_event_create(&event, SWITCH_EVENT_TALK)switch_event_create_subclass_detailed("src/switch_rtp.c", (const char * )(const char *)__func__, 6544, &event, SWITCH_EVENT_TALK , ((void*)0)) == SWITCH_STATUS_SUCCESS) { |
| 6545 | switch_channel_event_set_data(switch_core_session_get_channel(rtp_session->vad_data.session), event); |
| 6546 | switch_event_fire(&event)switch_event_fire_detailed("src/switch_rtp.c", (const char * ) (const char *)__func__, 6546, &event, ((void*)0)); |
| 6547 | } |
| 6548 | } |
| 6549 | } |
| 6550 | } |
| 6551 | } else { |
| 6552 | if (rtp_session->vad_data.hangunder_hits) { |
| 6553 | rtp_session->vad_data.hangunder_hits--; |
| 6554 | } |
| 6555 | if (switch_test_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_TALKING)((&rtp_session->vad_data)->flags & SWITCH_VAD_FLAG_TALKING )) { |
| 6556 | if (++rtp_session->vad_data.hangover_hits >= rtp_session->vad_data.hangover) { |
| 6557 | switch_clear_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_TALKING)(&rtp_session->vad_data)->flags &= ~(SWITCH_VAD_FLAG_TALKING ); |
| 6558 | rtp_session->vad_data.hangover_hits = rtp_session->vad_data.hangunder_hits = rtp_session->vad_data.cng_count = 0; |
| 6559 | if (switch_test_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_EVENTS_NOTALK)((&rtp_session->vad_data)->flags & SWITCH_VAD_FLAG_EVENTS_NOTALK )) { |
| 6560 | |
| 6561 | if ((rtp_session->vad_data.fire_events & VAD_FIRE_NOT_TALK)) { |
| 6562 | switch_event_t *event; |
| 6563 | if (switch_event_create(&event, SWITCH_EVENT_NOTALK)switch_event_create_subclass_detailed("src/switch_rtp.c", (const char * )(const char *)__func__, 6563, &event, SWITCH_EVENT_NOTALK , ((void*)0)) == SWITCH_STATUS_SUCCESS) { |
| 6564 | switch_channel_event_set_data(switch_core_session_get_channel(rtp_session->vad_data.session), event); |
| 6565 | switch_event_fire(&event)switch_event_fire_detailed("src/switch_rtp.c", (const char * ) (const char *)__func__, 6565, &event, ((void*)0)); |
| 6566 | } |
| 6567 | } |
| 6568 | } |
| 6569 | } |
| 6570 | } |
| 6571 | } |
| 6572 | } |
| 6573 | } |
| 6574 | |
| 6575 | if (switch_test_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_TALKING)((&rtp_session->vad_data)->flags & SWITCH_VAD_FLAG_TALKING )) { |
| 6576 | send = 1; |
| 6577 | } |
| 6578 | } |
| 6579 | } else { |
| 6580 | ret = -1; |
| 6581 | goto end; |
| 6582 | } |
| 6583 | } |
| 6584 | |
| 6585 | if (!switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO)) { |
| 6586 | this_ts = ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6587 | |
| 6588 | if ((this_ts - rtp_session->last_write_ts) > 16000) { |
| 6589 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 1; |
| 6590 | } |
| 6591 | |
| 6592 | if (!switch_rtp_ready(rtp_session) || rtp_session->sending_dtmf || !this_ts || |
| 6593 | (!rtp_session->flags[SWITCH_RTP_FLAG_RESET] && this_ts < rtp_session->last_write_ts)) { |
| 6594 | send = 0; |
| 6595 | } |
| 6596 | } |
| 6597 | |
| 6598 | if (rtp_session->flags[SWITCH_RTP_FLAG_PAUSE]) { |
| 6599 | send = 0; |
| 6600 | } |
| 6601 | |
| 6602 | if (send) { |
| 6603 | send_msg->header.seq = htons(++rtp_session->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (++rtp_session->seq); if (__builtin_constant_p (__x) ) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 6604 | |
| 6605 | if (rtp_session->flags[SWITCH_RTP_FLAG_BYTESWAP] && send_msg->header.pt == rtp_session->payload) { |
| 6606 | switch_swap_linear((int16_t *)send_msg->body, (int) datalen); |
| 6607 | } |
| 6608 | |
| 6609 | #ifdef ENABLE_SRTP1 |
| 6610 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 6611 | int sbytes = (int) bytes; |
| 6612 | err_status_t stat; |
| 6613 | |
| 6614 | |
| 6615 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND_RESET]) { |
| 6616 | |
| 6617 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_SEND_RESET); |
| 6618 | srtp_dealloc(rtp_session->send_ctx[rtp_session->srtp_idx_rtp]); |
| 6619 | rtp_session->send_ctx[rtp_session->srtp_idx_rtp] = NULL((void*)0); |
| 6620 | if ((stat = srtp_create(&rtp_session->send_ctx[rtp_session->srtp_idx_rtp], &rtp_session->send_policy[rtp_session->srtp_idx_rtp]))) { |
| 6621 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6621, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error! RE-Activating Secure RTP SEND\n"); |
| 6622 | ret = -1; |
| 6623 | goto end; |
| 6624 | } else { |
| 6625 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6625, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "RE-Activating Secure RTP SEND\n"); |
| 6626 | } |
| 6627 | } |
| 6628 | |
| 6629 | |
| 6630 | stat = srtp_protect(rtp_session->send_ctx[rtp_session->srtp_idx_rtp], &send_msg->header, &sbytes); |
| 6631 | |
| 6632 | if (stat) { |
| 6633 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6633, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP protection failed with code %d\n", stat); |
| 6634 | } |
| 6635 | |
| 6636 | bytes = sbytes; |
| 6637 | } |
| 6638 | #endif |
| 6639 | #ifdef ENABLE_ZRTP |
| 6640 | /* ZRTP Send */ |
| 6641 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 6642 | unsigned int sbytes = (int) bytes; |
| 6643 | zrtp_status_t stat = zrtp_status_fail; |
| 6644 | |
| 6645 | |
| 6646 | stat = zrtp_process_rtp(rtp_session->zrtp_stream, (void *) send_msg, &sbytes); |
| 6647 | |
| 6648 | switch (stat) { |
| 6649 | case zrtp_status_ok: |
| 6650 | break; |
| 6651 | case zrtp_status_drop: |
| 6652 | /* switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "Error: zRTP protection drop with code %d\n", stat); */ |
| 6653 | ret = (int) bytes; |
| 6654 | goto end; |
| 6655 | break; |
| 6656 | case zrtp_status_fail: |
| 6657 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6657, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 6658 | break; |
| 6659 | default: |
| 6660 | break; |
| 6661 | } |
| 6662 | |
| 6663 | bytes = sbytes; |
| 6664 | } |
| 6665 | #endif |
| 6666 | |
| 6667 | now = switch_micro_time_now(); |
| 6668 | #ifdef RTP_DEBUG_WRITE_DELTA |
| 6669 | { |
| 6670 | int delta = (int) (now - rtp_session->send_time) / 1000; |
| 6671 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 6671, ((void*)0), SWITCH_LOG_ERROR, "WRITE %d delta %d\n", (int) bytes, delta); |
| 6672 | } |
| 6673 | #endif |
| 6674 | rtp_session->send_time = now; |
| 6675 | |
| 6676 | if (rtp_session->flags[SWITCH_RTP_FLAG_DEBUG_RTP_WRITE]) { |
| 6677 | const char *tx_host; |
| 6678 | const char *old_host; |
| 6679 | const char *my_host; |
| 6680 | |
| 6681 | char bufa[30], bufb[30], bufc[30]; |
| 6682 | |
| 6683 | |
| 6684 | tx_host = switch_get_addr(bufa, sizeof(bufa), rtp_session->from_addr); |
| 6685 | old_host = switch_get_addr(bufb, sizeof(bufb), rtp_session->remote_addr); |
| 6686 | my_host = switch_get_addr(bufc, sizeof(bufc), rtp_session->local_addr); |
| 6687 | |
| 6688 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG_CLEAN(rtp_session->session)SWITCH_CHANNEL_ID_LOG_CLEAN, "src/switch_rtp.c", (const char * )__func__, 6688, switch_core_session_get_uuid((rtp_session-> session)), SWITCH_LOG_CONSOLE, |
| 6689 | "W %s b=%4ld %s:%u %s:%u %s:%u pt=%d ts=%u m=%d\n", |
| 6690 | rtp_session->session ? switch_channel_get_name(switch_core_session_get_channel(rtp_session->session)) : "NoName", |
| 6691 | (long) bytes, |
| 6692 | my_host, switch_sockaddr_get_port(rtp_session->local_addr), |
| 6693 | old_host, rtp_session->remote_port, |
| 6694 | tx_host, switch_sockaddr_get_port(rtp_session->from_addr), |
| 6695 | send_msg->header.pt, ntohl(send_msg->header.ts)(__extension__ ({ unsigned int __v, __x = (send_msg->header .ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })), send_msg->header.m); |
| 6696 | |
| 6697 | } |
| 6698 | |
| 6699 | if (switch_socket_sendto(rtp_session->sock_output, rtp_session->remote_addr, 0, (void *) send_msg, &bytes) != SWITCH_STATUS_SUCCESS) { |
| 6700 | rtp_session->seq--; |
| 6701 | ret = -1; |
| 6702 | goto end; |
| 6703 | } |
| 6704 | |
| 6705 | rtp_session->last_write_ts = this_ts; |
| 6706 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 0; |
| 6707 | |
| 6708 | if (rtp_session->queue_delay) { |
| 6709 | rtp_session->delay_samples = rtp_session->queue_delay; |
| 6710 | rtp_session->queue_delay = 0; |
| 6711 | } |
| 6712 | |
| 6713 | rtp_session->stats.outbound.raw_bytes += bytes; |
| 6714 | rtp_session->stats.outbound.packet_count++; |
| 6715 | |
| 6716 | if (rtp_session->cng_pt && send_msg->header.pt == rtp_session->cng_pt) { |
| 6717 | rtp_session->stats.outbound.cng_packet_count++; |
| 6718 | } else { |
| 6719 | rtp_session->stats.outbound.media_packet_count++; |
| 6720 | rtp_session->stats.outbound.media_bytes += bytes; |
| 6721 | } |
| 6722 | |
| 6723 | if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) { |
| 6724 | rtp_session->last_write_samplecount = rtp_session->timer.samplecount; |
| 6725 | } else { |
| 6726 | rtp_session->last_write_timestamp = switch_micro_time_now(); |
| 6727 | } |
| 6728 | |
| 6729 | } |
| 6730 | |
| 6731 | ret = (int) bytes; |
| 6732 | |
| 6733 | end: |
| 6734 | |
| 6735 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 6736 | |
| 6737 | return ret; |
| 6738 | } |
| 6739 | |
| 6740 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_disable_vad(switch_rtp_t *rtp_session) |
| 6741 | { |
| 6742 | |
| 6743 | if (!rtp_session) { |
| 6744 | return SWITCH_STATUS_FALSE; |
| 6745 | } |
| 6746 | |
| 6747 | if (!rtp_session->flags[SWITCH_RTP_FLAG_VAD]) { |
| 6748 | return SWITCH_STATUS_GENERR; |
| 6749 | } |
| 6750 | switch_core_codec_destroy(&rtp_session->vad_data.vad_codec); |
| 6751 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_VAD); |
| 6752 | return SWITCH_STATUS_SUCCESS; |
| 6753 | } |
| 6754 | |
| 6755 | SWITCH_DECLARE(switch_status_t)__attribute__((visibility("default"))) switch_status_t switch_rtp_enable_vad(switch_rtp_t *rtp_session, switch_core_session_t *session, switch_codec_t *codec, |
| 6756 | switch_vad_flag_t flags) |
| 6757 | { |
| 6758 | if (!switch_rtp_ready(rtp_session)) { |
| 6759 | return SWITCH_STATUS_FALSE; |
| 6760 | } |
| 6761 | |
| 6762 | if (rtp_session->flags[SWITCH_RTP_FLAG_VAD]) { |
| 6763 | return SWITCH_STATUS_GENERR; |
| 6764 | } |
| 6765 | |
| 6766 | memset(&rtp_session->vad_data, 0, sizeof(rtp_session->vad_data)); |
| 6767 | |
| 6768 | if (switch_true(switch_channel_get_variable(switch_core_session_get_channel(rtp_session->session), "fire_talk_events")switch_channel_get_variable_dup(switch_core_session_get_channel (rtp_session->session), "fire_talk_events", SWITCH_TRUE, - 1))) { |
| 6769 | rtp_session->vad_data.fire_events |= VAD_FIRE_TALK; |
| 6770 | } |
| 6771 | |
| 6772 | if (switch_true(switch_channel_get_variable(switch_core_session_get_channel(rtp_session->session), "fire_not_talk_events")switch_channel_get_variable_dup(switch_core_session_get_channel (rtp_session->session), "fire_not_talk_events", SWITCH_TRUE , -1))) { |
| 6773 | rtp_session->vad_data.fire_events |= VAD_FIRE_NOT_TALK; |
| 6774 | } |
| 6775 | |
| 6776 | |
| 6777 | if (switch_core_codec_init(&rtp_session->vad_data.vad_codec,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6778 | codec->implementation->iananame,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6779 | NULL,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6780 | codec->implementation->samples_per_second,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6781 | codec->implementation->microseconds_per_packet / 1000,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6782 | codec->implementation->number_of_channels,switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) |
| 6783 | SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, rtp_session->pool)switch_core_codec_init_with_bitrate(&rtp_session->vad_data .vad_codec, codec->implementation->iananame, ((void*)0) , codec->implementation->samples_per_second, codec-> implementation->microseconds_per_packet / 1000, codec-> implementation->number_of_channels, 0, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, ((void*)0), rtp_session->pool ) != SWITCH_STATUS_SUCCESS) { |
| 6784 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6784, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Can't load codec?\n"); |
| 6785 | return SWITCH_STATUS_FALSE; |
| 6786 | } |
| 6787 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6787, (const char*)(rtp_session->session), SWITCH_LOG_DEBUG, "Activate VAD codec %s %dms\n", codec->implementation->iananame, |
| 6788 | codec->implementation->microseconds_per_packet / 1000); |
| 6789 | rtp_session->vad_data.diff_level = 400; |
| 6790 | rtp_session->vad_data.hangunder = 15; |
| 6791 | rtp_session->vad_data.hangover = 40; |
| 6792 | rtp_session->vad_data.bg_len = 5; |
| 6793 | rtp_session->vad_data.bg_count = 5; |
| 6794 | rtp_session->vad_data.bg_level = 300; |
| 6795 | rtp_session->vad_data.read_codec = codec; |
| 6796 | rtp_session->vad_data.session = session; |
| 6797 | rtp_session->vad_data.flags = flags; |
| 6798 | rtp_session->vad_data.cng_freq = 50; |
| 6799 | rtp_session->vad_data.ts = 1; |
| 6800 | rtp_session->vad_data.start = 0; |
| 6801 | rtp_session->vad_data.next_scan = switch_epoch_time_now(NULL((void*)0)); |
| 6802 | rtp_session->vad_data.scan_freq = 0; |
| 6803 | switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_VAD); |
| 6804 | switch_set_flag(&rtp_session->vad_data, SWITCH_VAD_FLAG_CNG)(&rtp_session->vad_data)->flags |= (SWITCH_VAD_FLAG_CNG ); |
| 6805 | return SWITCH_STATUS_SUCCESS; |
| 6806 | } |
| 6807 | |
| 6808 | SWITCH_DECLARE(int)__attribute__((visibility("default"))) int switch_rtp_write_frame(switch_rtp_t *rtp_session, switch_frame_t *frame) |
| 6809 | { |
| 6810 | uint8_t fwd = 0; |
| 6811 | void *data = NULL((void*)0); |
| 6812 | uint32_t len, ts = 0; |
| 6813 | switch_payload_t payload = 0; |
| 6814 | rtp_msg_t *send_msg = NULL((void*)0); |
| 6815 | |
| 6816 | if (!switch_rtp_ready(rtp_session) || !rtp_session->remote_addr) { |
| 6817 | return -1; |
| 6818 | } |
| 6819 | |
| 6820 | if (!rtp_write_ready(rtp_session, frame->datalen, __LINE__6820)) { |
| 6821 | return 0; |
| 6822 | } |
| 6823 | |
| 6824 | //if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 6825 | // rtp_session->flags[SWITCH_RTP_FLAG_DEBUG_RTP_READ]++; |
| 6826 | // rtp_session->flags[SWITCH_RTP_FLAG_DEBUG_RTP_WRITE]++; |
| 6827 | //} |
| 6828 | |
| 6829 | |
| 6830 | if (switch_test_flag(frame, SFF_PROXY_PACKET)((frame)->flags & SFF_PROXY_PACKET) || switch_test_flag(frame, SFF_UDPTL_PACKET)((frame)->flags & SFF_UDPTL_PACKET) || |
| 6831 | rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 6832 | |
| 6833 | //if (rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] || rtp_session->flags[SWITCH_RTP_FLAG_UDPTL]) { |
| 6834 | switch_size_t bytes; |
| 6835 | //char bufa[30]; |
| 6836 | |
| 6837 | /* Fast PASS! */ |
| 6838 | if (!switch_test_flag(frame, SFF_PROXY_PACKET)((frame)->flags & SFF_PROXY_PACKET) && !switch_test_flag(frame, SFF_UDPTL_PACKET)((frame)->flags & SFF_UDPTL_PACKET)) { |
| 6839 | return 0; |
| 6840 | } |
| 6841 | bytes = frame->packetlen; |
| 6842 | //tx_host = switch_get_addr(bufa, sizeof(bufa), rtp_session->remote_addr); |
| 6843 | |
| 6844 | send_msg = frame->packet; |
| 6845 | |
| 6846 | if (!rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && !switch_test_flag(frame, SFF_UDPTL_PACKET)((frame)->flags & SFF_UDPTL_PACKET)) { |
| 6847 | |
| 6848 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO] && rtp_session->payload > 0) { |
| 6849 | send_msg->header.pt = rtp_session->payload; |
| 6850 | } |
| 6851 | |
| 6852 | send_msg->header.ssrc = htonl(rtp_session->ssrc)(__extension__ ({ unsigned int __v, __x = (rtp_session->ssrc ); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000 ) >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x ) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); __v ; })); |
| 6853 | send_msg->header.seq = htons(++rtp_session->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (++rtp_session->seq); if (__builtin_constant_p (__x) ) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 6854 | } |
| 6855 | |
| 6856 | if (switch_socket_sendto(rtp_session->sock_output, rtp_session->remote_addr, 0, frame->packet, &bytes) != SWITCH_STATUS_SUCCESS) { |
| 6857 | return -1; |
| 6858 | } |
| 6859 | |
| 6860 | |
| 6861 | rtp_session->stats.outbound.raw_bytes += bytes; |
| 6862 | rtp_session->stats.outbound.media_bytes += bytes; |
| 6863 | rtp_session->stats.outbound.media_packet_count++; |
| 6864 | rtp_session->stats.outbound.packet_count++; |
| 6865 | return (int) bytes; |
| 6866 | } |
| 6867 | #ifdef ENABLE_ZRTP |
| 6868 | if (zrtp_on && rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND]) { |
| 6869 | zrtp_session_info_t zrtp_session_info; |
| 6870 | |
| 6871 | if (zrtp_status_ok == zrtp_session_get(rtp_session->zrtp_session, &zrtp_session_info)) { |
| 6872 | if (zrtp_session_info.sas_is_ready) { |
| 6873 | |
| 6874 | switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session); |
| 6875 | |
| 6876 | const char *uuid = switch_channel_get_partner_uuid(channel); |
| 6877 | if (uuid) { |
| 6878 | switch_core_session_t *other_session; |
| 6879 | |
| 6880 | if ((other_session = switch_core_session_locate(uuid)switch_core_session_perform_locate(uuid, "src/switch_rtp.c", ( const char *)__func__, 6880))) { |
| 6881 | switch_channel_t *other_channel = switch_core_session_get_channel(other_session); |
| 6882 | switch_rtp_t *other_rtp_session = switch_channel_get_private(other_channel, "__zrtp_audio_rtp_session"); |
| 6883 | |
| 6884 | |
| 6885 | if (other_rtp_session) { |
| 6886 | if (zrtp_status_ok == zrtp_session_get(other_rtp_session->zrtp_session, &zrtp_session_info)) { |
| 6887 | if (rtp_session->zrtp_mitm_tries > ZRTP_MITM_TRIES) { |
| 6888 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 6889 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 6890 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_RECV); |
| 6891 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_SEND); |
| 6892 | } else if (zrtp_status_ok == zrtp_resolve_mitm_call(other_rtp_session->zrtp_stream, rtp_session->zrtp_stream)) { |
| 6893 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_RECV] = 0; |
| 6894 | rtp_session->flags[SWITCH_ZRTP_FLAG_SECURE_MITM_SEND] = 0; |
| 6895 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_RECV); |
| 6896 | switch_rtp_clear_flag(other_rtp_session, SWITCH_ZRTP_FLAG_SECURE_MITM_SEND); |
| 6897 | rtp_session->zrtp_mitm_tries++; |
| 6898 | } |
| 6899 | rtp_session->zrtp_mitm_tries++; |
| 6900 | } |
| 6901 | } |
| 6902 | |
| 6903 | switch_core_session_rwunlock(other_session); |
| 6904 | } |
| 6905 | } |
| 6906 | } |
| 6907 | } |
| 6908 | } |
| 6909 | #endif |
| 6910 | |
| 6911 | fwd = (rtp_session->flags[SWITCH_RTP_FLAG_RAW_WRITE] && switch_test_flag(frame, SFF_RAW_RTP)((frame)->flags & SFF_RAW_RTP)) ? 1 : 0; |
| 6912 | |
| 6913 | if (!fwd && !rtp_session->sending_dtmf && !rtp_session->queue_delay && |
| 6914 | rtp_session->flags[SWITCH_RTP_FLAG_RAW_WRITE] && (rtp_session->rtp_bugs & RTP_BUG_GEN_ONE_GEN_ALL)) { |
| 6915 | |
| 6916 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 6916, (const char*)(rtp_session->session), SWITCH_LOG_WARNING, "Generating RTP locally but timestamp passthru is configured, disabling....\n"); |
| 6917 | rtp_session->flags[SWITCH_RTP_FLAG_RAW_WRITE] = 0; |
| 6918 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 1; |
| 6919 | } |
| 6920 | |
| 6921 | switch_assert(frame != NULL)((frame != ((void*)0)) ? (void) (0) : __assert_fail ("frame != ((void*)0)" , "src/switch_rtp.c", 6921, __PRETTY_FUNCTION__)); |
| 6922 | |
| 6923 | if (switch_test_flag(frame, SFF_CNG)((frame)->flags & SFF_CNG)) { |
| 6924 | if (rtp_session->cng_pt) { |
| 6925 | payload = rtp_session->cng_pt; |
| 6926 | } else { |
| 6927 | return (int) frame->packetlen; |
| 6928 | } |
| 6929 | } else { |
| 6930 | payload = rtp_session->payload; |
| 6931 | #if 0 |
| 6932 | if (rtp_session->pmaps && *rtp_session->pmaps) { |
| 6933 | payload_map_t *pmap; |
| 6934 | for (pmap = *rtp_session->pmaps; pmap; pmap = pmap->next) { |
| 6935 | if (pmap->current) { |
| 6936 | payload = pmap->pt; |
| 6937 | } |
| 6938 | } |
| 6939 | } |
| 6940 | #endif |
| 6941 | } |
| 6942 | |
| 6943 | if (switch_test_flag(frame, SFF_RTP_HEADER)((frame)->flags & SFF_RTP_HEADER)) { |
| 6944 | switch_size_t wrote = switch_rtp_write_manual(rtp_session, frame->data, frame->datalen, |
| 6945 | frame->m, frame->payload, (uint32_t) (frame->timestamp), &frame->flags); |
| 6946 | |
| 6947 | rtp_session->stats.outbound.raw_bytes += wrote; |
| 6948 | rtp_session->stats.outbound.media_bytes += wrote; |
| 6949 | rtp_session->stats.outbound.media_packet_count++; |
| 6950 | rtp_session->stats.outbound.packet_count++; |
| 6951 | } |
| 6952 | |
| 6953 | if (frame->pmap && rtp_session->pmaps && *rtp_session->pmaps) { |
| 6954 | payload_map_t *pmap; |
| 6955 | |
| 6956 | switch_mutex_lock(rtp_session->flag_mutex); |
| 6957 | for (pmap = *rtp_session->pmaps; pmap; pmap = pmap->next) { |
| 6958 | if (pmap->negotiated && pmap->hash == frame->pmap->hash) { |
| 6959 | payload = pmap->recv_pt; |
| 6960 | break; |
| 6961 | } |
| 6962 | } |
| 6963 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 6964 | } |
| 6965 | |
| 6966 | if (fwd) { |
| 6967 | send_msg = frame->packet; |
| 6968 | len = frame->packetlen; |
| 6969 | ts = 0; |
| 6970 | // Trying this based on http://jira.freeswitch.org/browse/MODSOFIA-90 |
| 6971 | //if (frame->codec && frame->codec->agreed_pt == frame->payload) { |
| 6972 | |
| 6973 | send_msg->header.pt = payload; |
| 6974 | //} |
| 6975 | } else { |
| 6976 | data = frame->data; |
| 6977 | len = frame->datalen; |
| 6978 | ts = rtp_session->flags[SWITCH_RTP_FLAG_RAW_WRITE] ? (uint32_t) frame->timestamp : 0; |
| 6979 | } |
| 6980 | |
| 6981 | /* |
| 6982 | if (rtp_session->flags[SWITCH_RTP_FLAG_VIDEO]) { |
| 6983 | send_msg->header.pt = rtp_session->payload; |
| 6984 | } |
| 6985 | */ |
| 6986 | |
| 6987 | return rtp_common_write(rtp_session, send_msg, data, len, payload, ts, &frame->flags); |
| 6988 | } |
| 6989 | |
| 6990 | SWITCH_DECLARE(switch_rtp_stats_t *)__attribute__((visibility("default"))) switch_rtp_stats_t * switch_rtp_get_stats(switch_rtp_t *rtp_session, switch_memory_pool_t *pool) |
| 6991 | { |
| 6992 | switch_rtp_stats_t *s; |
| 6993 | |
| 6994 | if (!rtp_session) { |
| 6995 | return NULL((void*)0); |
| 6996 | } |
| 6997 | |
| 6998 | switch_mutex_lock(rtp_session->flag_mutex); |
| 6999 | if (pool) { |
| 7000 | s = switch_core_alloc(pool, sizeof(*s))switch_core_perform_alloc(pool, sizeof(*s), "src/switch_rtp.c" , (const char *)__func__, 7000); |
| 7001 | *s = rtp_session->stats; |
| 7002 | } else { |
| 7003 | s = &rtp_session->stats; |
| 7004 | } |
| 7005 | |
| 7006 | if (rtp_session->jb) { |
| 7007 | s->inbound.largest_jb_size = stfu_n_get_most_qlen(rtp_session->jb); |
| 7008 | } |
| 7009 | |
| 7010 | do_mos(rtp_session, SWITCH_FALSE); |
| 7011 | |
| 7012 | switch_mutex_unlock(rtp_session->flag_mutex); |
| 7013 | |
| 7014 | return s; |
| 7015 | } |
| 7016 | |
| 7017 | SWITCH_DECLARE(int)__attribute__((visibility("default"))) int switch_rtp_write_manual(switch_rtp_t *rtp_session, |
| 7018 | void *data, uint32_t datalen, uint8_t m, switch_payload_t payload, uint32_t ts, switch_frame_flag_t *flags) |
| 7019 | { |
| 7020 | switch_size_t bytes; |
| 7021 | int ret = -1; |
| 7022 | |
| 7023 | if (!switch_rtp_ready(rtp_session) || !rtp_session->remote_addr || datalen > SWITCH_RTP_MAX_BUF_LEN16384) { |
| 7024 | return -1; |
| 7025 | } |
| 7026 | |
| 7027 | if (!rtp_write_ready(rtp_session, datalen, __LINE__7027)) { |
| 7028 | return 0; |
| 7029 | } |
| 7030 | |
| 7031 | WRITE_INC(rtp_session)switch_mutex_lock(rtp_session->write_mutex); rtp_session-> writing++; |
| 7032 | |
| 7033 | rtp_session->write_msg = rtp_session->send_msg; |
| 7034 | rtp_session->write_msg.header.seq = htons(++rtp_session->seq)(__extension__ ({ unsigned short int __v, __x = (unsigned short int) (++rtp_session->seq); if (__builtin_constant_p (__x) ) __v = ((unsigned short int) ((((__x) >> 8) & 0xff ) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); |
| 7035 | rtp_session->write_msg.header.ts = htonl(ts)(__extension__ ({ unsigned int __v, __x = (ts); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >> 24) | (((__x ) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) | (((__x) & 0x000000ff) << 24)); else __asm__ ( "bswap %0" : "=r" (__v) : "0" (__x)); __v; })); |
| 7036 | rtp_session->write_msg.header.pt = payload; |
| 7037 | rtp_session->write_msg.header.m = m; |
| 7038 | memcpy(rtp_session->write_msg.body, data, datalen); |
| 7039 | |
| 7040 | bytes = rtp_header_len12 + datalen; |
| 7041 | |
| 7042 | #ifdef ENABLE_SRTP1 |
| 7043 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND]) { |
| 7044 | |
| 7045 | int sbytes = (int) bytes; |
| 7046 | err_status_t stat; |
| 7047 | |
| 7048 | if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_SEND_RESET]) { |
| 7049 | switch_rtp_clear_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_SEND_RESET); |
| 7050 | srtp_dealloc(rtp_session->send_ctx[rtp_session->srtp_idx_rtp]); |
| 7051 | rtp_session->send_ctx[rtp_session->srtp_idx_rtp] = NULL((void*)0); |
| 7052 | if ((stat = srtp_create(&rtp_session->send_ctx[rtp_session->srtp_idx_rtp], &rtp_session->send_policy[rtp_session->srtp_idx_rtp]))) { |
| 7053 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 7053, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error! RE-Activating Secure RTP SEND\n"); |
| 7054 | ret = -1; |
| 7055 | goto end; |
| 7056 | } else { |
| 7057 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 7057, (const char*)(rtp_session->session), SWITCH_LOG_INFO, "RE-Activating Secure RTP SEND\n"); |
| 7058 | } |
| 7059 | } |
| 7060 | |
| 7061 | stat = srtp_protect(rtp_session->send_ctx[rtp_session->srtp_idx_rtp], &rtp_session->write_msg.header, &sbytes); |
| 7062 | if (stat) { |
| 7063 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session)SWITCH_CHANNEL_ID_SESSION, "src/switch_rtp.c", (const char *) __func__, 7063, (const char*)(rtp_session->session), SWITCH_LOG_ERROR, "Error: SRTP protection failed with code %d\n", stat); |
| 7064 | } |
| 7065 | bytes = sbytes; |
| 7066 | } |
| 7067 | #endif |
| 7068 | #ifdef ENABLE_ZRTP |
| 7069 | /* ZRTP Send */ |
| 7070 | if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) { |
| 7071 | unsigned int sbytes = (int) bytes; |
| 7072 | zrtp_status_t stat = zrtp_status_fail; |
| 7073 | |
| 7074 | stat = zrtp_process_rtp(rtp_session->zrtp_stream, (void *) &rtp_session->write_msg, &sbytes); |
| 7075 | |
| 7076 | switch (stat) { |
| 7077 | case zrtp_status_ok: |
| 7078 | break; |
| 7079 | case zrtp_status_drop: |
| 7080 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 7080, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat); |
| 7081 | ret = (int) bytes; |
| 7082 | goto end; |
| 7083 | break; |
| 7084 | case zrtp_status_fail: |
| 7085 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "src/switch_rtp.c", (const char *)__func__ , 7085, ((void*)0), SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat); |
| 7086 | break; |
| 7087 | default: |
| 7088 | break; |
| 7089 | } |
| 7090 | |
| 7091 | bytes = sbytes; |
| 7092 | } |
| 7093 | #endif |
| 7094 | |
| 7095 | if (switch_socket_sendto(rtp_session->sock_output, rtp_session->remote_addr, 0, (void *) &rtp_session->write_msg, &bytes) != SWITCH_STATUS_SUCCESS) { |
| 7096 | rtp_session->seq--; |
| 7097 | ret = -1; |
| 7098 | goto end; |
| 7099 | } |
| 7100 | |
| 7101 | if (((*flags) & SFF_RTP_HEADER)) { |
| 7102 | rtp_session->last_write_ts = ts; |
| 7103 | rtp_session->flags[SWITCH_RTP_FLAG_RESET] = 0; |
| 7104 | } |
| 7105 | |
| 7106 | ret = (int) bytes; |
| 7107 | |
| 7108 | end: |
| 7109 | |
| 7110 | WRITE_DEC(rtp_session)switch_mutex_unlock(rtp_session->write_mutex); rtp_session ->writing--; |
| 7111 | |
| 7112 | return ret; |
| 7113 | } |
| 7114 | |
| 7115 | SWITCH_DECLARE(uint32_t)__attribute__((visibility("default"))) uint32_t switch_rtp_get_ssrc(switch_rtp_t *rtp_session) |
| 7116 | { |
| 7117 | return rtp_session->ssrc; |
| 7118 | } |
| 7119 | |
| 7120 | SWITCH_DECLARE(void)__attribute__((visibility("default"))) void switch_rtp_set_private(switch_rtp_t *rtp_session, void *private_data) |
| 7121 | { |
| 7122 | rtp_session->private_data = private_data; |
| 7123 | } |
| 7124 | |
| 7125 | SWITCH_DECLARE(void *)__attribute__((visibility("default"))) void * switch_rtp_get_private(switch_rtp_t *rtp_session) |
| 7126 | { |
| 7127 | return rtp_session->private_data; |
| 7128 | } |
| 7129 | |
| 7130 | /* For Emacs: |
| 7131 | * Local Variables: |
| 7132 | * mode:c |
| 7133 | * indent-tabs-mode:t |
| 7134 | * tab-width:4 |
| 7135 | * c-basic-offset:4 |
| 7136 | * End: |
| 7137 | * For VIM: |
| 7138 | * vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet: |
| 7139 | */ |
| 7140 |