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FS-3075

This commit is contained in:
Anthony Minessale 2011-03-18 16:58:52 -05:00 committed by Brian West
parent 34bd0e5e79
commit 069f5f7d42
1 changed files with 68 additions and 62 deletions
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130
src/switch_rtp.c
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@ -2503,6 +2503,74 @@ static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t
rtp_session->last_read_ts = ts;
if (!switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA) && !switch_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL)) {
#ifdef ENABLE_ZRTP
/* ZRTP Recv */
if (*bytes) {
unsigned int sbytes = (int) *bytes;
zrtp_status_t stat = 0;
stat = zrtp_process_srtp(rtp_session->zrtp_stream, (void *) &rtp_session->recv_msg, &sbytes);
switch (stat) {
case zrtp_status_ok:
*bytes = sbytes;
break;
case zrtp_status_drop:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat);
*bytes = 0;
return SWITCH_STATUS_SUCCESS;
case zrtp_status_fail:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat);
return SWITCH_STATUS_FALSE;
default:
break;
}
}
#endif
if (*bytes && switch_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV)) {
int sbytes = (int) *bytes;
err_status_t stat = 0;
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV_RESET)) {
switch_clear_flag_locked(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV_RESET);
srtp_dealloc(rtp_session->recv_ctx);
rtp_session->recv_ctx = NULL;
if ((stat = srtp_create(&rtp_session->recv_ctx, &rtp_session->recv_policy))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error! RE-Activating Secure RTP RECV\n");
return SWITCH_STATUS_FALSE;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "RE-Activating Secure RTP RECV\n");
rtp_session->srtp_errs = 0;
}
}
if (!(*flags & SFF_PLC)) {
stat = srtp_unprotect(rtp_session->recv_ctx, &rtp_session->recv_msg.header, &sbytes);
}
if (stat && rtp_session->recv_msg.header.pt != rtp_session->recv_te && rtp_session->recv_msg.header.pt != rtp_session->cng_pt) {
if (++rtp_session->srtp_errs >= MAX_SRTP_ERRS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
"Error: SRTP unprotect failed with code %d%s\n", stat,
stat == err_status_replay_fail ? " (replay check failed)" : stat ==
err_status_auth_fail ? " (auth check failed)" : "");
return SWITCH_STATUS_FALSE;
} else {
sbytes = 0;
}
} else {
rtp_session->srtp_errs = 0;
}
*bytes = sbytes;
}
}
if (rtp_session->jb && !rtp_session->pause_jb && rtp_session->recv_msg.header.version == 2 && *bytes) {
if (rtp_session->recv_msg.header.m && rtp_session->recv_msg.header.pt != rtp_session->recv_te &&
!switch_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO) && !(rtp_session->rtp_bugs & RTP_BUG_IGNORE_MARK_BIT)) {
@ -3061,31 +3129,6 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
if (check || bytes) {
do_2833(rtp_session, session);
}
#ifdef ENABLE_ZRTP
/* ZRTP Recv */
if (bytes) {
unsigned int sbytes = (int) bytes;
zrtp_status_t stat = 0;
stat = zrtp_process_srtp(rtp_session->zrtp_stream, (void *) &rtp_session->recv_msg, &sbytes);
switch (stat) {
case zrtp_status_ok:
bytes = sbytes;
break;
case zrtp_status_drop:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error: zRTP protection drop with code %d\n", stat);
bytes = 0;
goto do_continue;
case zrtp_status_fail:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error: zRTP protection fail with code %d\n", stat);
ret = -1;
goto end;
default:
break;
}
}
#endif
if (bytes && rtp_session->recv_msg.header.version != 2) {
uint8_t *data = (uint8_t *) rtp_session->recv_msg.body;
@ -3112,43 +3155,6 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
goto end;
}
if (bytes && switch_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV)) {
int sbytes = (int) bytes;
err_status_t stat = 0;
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV_RESET)) {
switch_clear_flag_locked(rtp_session, SWITCH_RTP_FLAG_SECURE_RECV_RESET);
srtp_dealloc(rtp_session->recv_ctx);
rtp_session->recv_ctx = NULL;
if ((stat = srtp_create(&rtp_session->recv_ctx, &rtp_session->recv_policy))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error! RE-Activating Secure RTP RECV\n");
ret = -1;
goto end;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "RE-Activating Secure RTP RECV\n");
rtp_session->srtp_errs = 0;
}
}
stat = srtp_unprotect(rtp_session->recv_ctx, &rtp_session->recv_msg.header, &sbytes);
if (stat && rtp_session->recv_msg.header.pt != rtp_session->recv_te && rtp_session->recv_msg.header.pt != rtp_session->cng_pt) {
if (++rtp_session->srtp_errs >= MAX_SRTP_ERRS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
"Error: SRTP unprotect failed with code %d%s\n", stat,
stat == err_status_replay_fail ? " (replay check failed)" : stat ==
err_status_auth_fail ? " (auth check failed)" : "");
ret = -1;
goto end;
} else {
sbytes = 0;
}
} else {
rtp_session->srtp_errs = 0;
}
bytes = sbytes;
}
/* Handle incoming RFC2833 packets */
switch (handle_rfc2833(rtp_session, bytes, &do_cng)) {