Merge "res_rtp_asterisk: Fix issues with ICE renegotiation."
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commit
16e43ef701
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@ -317,6 +317,7 @@ struct ast_rtp {
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ast_cond_t cond; /*!< ICE/TURN condition for signaling */
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struct ice_wrap *ice; /*!< ao2 wrapped ICE session */
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enum ast_rtp_ice_role role; /*!< Our role in ICE negotiation */
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pj_turn_sock *turn_rtp; /*!< RTP TURN relay */
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pj_turn_sock *turn_rtcp; /*!< RTCP TURN relay */
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pj_turn_state_t turn_state; /*!< Current state of the TURN relay session */
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@ -683,7 +684,6 @@ static void ice_wrap_dtor(void *vdoomed)
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static int ice_reset_session(struct ast_rtp_instance *instance)
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{
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struct ast_rtp *rtp = ast_rtp_instance_get_data(instance);
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pj_ice_sess_role role = rtp->ice->real_ice->role;
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int res;
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ast_debug(3, "Resetting ICE for RTP instance '%p'\n", instance);
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@ -695,8 +695,9 @@ static int ice_reset_session(struct ast_rtp_instance *instance)
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ast_debug(3, "Recreating ICE session %s (%d) for RTP instance '%p'\n", ast_sockaddr_stringify(&rtp->ice_original_rtp_addr), rtp->ice_port, instance);
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res = ice_create(instance, &rtp->ice_original_rtp_addr, rtp->ice_port, 1);
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if (!res) {
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/* Preserve the role that the old ICE session used */
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pj_ice_sess_change_role(rtp->ice->real_ice, role);
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/* Use the current expected role for the ICE session */
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pj_ice_sess_change_role(rtp->ice->real_ice, rtp->role == AST_RTP_ICE_ROLE_CONTROLLED ?
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PJ_ICE_SESS_ROLE_CONTROLLED : PJ_ICE_SESS_ROLE_CONTROLLING);
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}
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/* If we only have one component now, and we previously set up TURN for RTCP,
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@ -767,6 +768,8 @@ static void ast_rtp_ice_start(struct ast_rtp_instance *instance)
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ast_debug(3, "Proposed == active candidates for RTP instance '%p'\n", instance);
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ao2_cleanup(rtp->ice_proposed_remote_candidates);
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rtp->ice_proposed_remote_candidates = NULL;
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/* If this ICE session is being preserved then go back to the role it currently is */
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rtp->role = rtp->ice->real_ice->role;
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return;
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}
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@ -940,10 +943,7 @@ static void ast_rtp_ice_set_role(struct ast_rtp_instance *instance, enum ast_rtp
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return;
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}
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pj_thread_register_check();
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pj_ice_sess_change_role(rtp->ice->real_ice, role == AST_RTP_ICE_ROLE_CONTROLLED ?
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PJ_ICE_SESS_ROLE_CONTROLLED : PJ_ICE_SESS_ROLE_CONTROLLING);
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rtp->role = role;
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}
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/*! \pre instance is locked */
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@ -2526,6 +2526,17 @@ static int __rtp_recvfrom(struct ast_rtp_instance *instance, void *buf, size_t s
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return -1;
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}
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if (!rtp->passthrough) {
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/* If a unidirectional ICE negotiation occurs then lock on to the source of the
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* ICE traffic and use it as the target. This will occur if the remote side only
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* wants to receive media but never send to us.
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*/
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if (!rtp->ice_active_remote_candidates && !rtp->ice_proposed_remote_candidates) {
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if (rtcp) {
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ast_sockaddr_copy(&rtp->rtcp->them, sa);
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} else {
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ast_rtp_instance_set_remote_address(instance, sa);
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}
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}
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return 0;
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}
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rtp->passthrough = 0;
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