res_pjsip_session: Send Session Interval too small response
Handle session interval lower than endpoint's configured minimum timer when sending first answer. Timer setting is checked during this step and needs to handled appropriately. Before this change, no response was sent at all. After this change a response with 422 Session Interval too small is sent to UAC.
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@ -4053,15 +4053,20 @@ static int new_invite(struct new_invite *invite)
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* so let's go ahead and send a 100 Trying out to stop any
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* retransmissions.
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*/
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if (pjsip_inv_initial_answer(invite->session->inv_session, invite->rdata, 100, NULL, NULL, &tdata) != PJ_SUCCESS) {
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if (tdata) {
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pjsip_inv_send_msg(invite->session->inv_session, tdata);
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} else {
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pjsip_inv_terminate(invite->session->inv_session, 500, PJ_TRUE);
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}
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goto end;
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}
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ast_trace(-1, "%s: Call (%s:%s) to extension '%s' sending 100 Trying\n",
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ast_sip_session_get_name(invite->session),
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invite->rdata->tp_info.transport->type_name,
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pj_sockaddr_print(&invite->rdata->pkt_info.src_addr, buffer, sizeof(buffer), 3),
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invite->session->exten);
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if (pjsip_inv_initial_answer(invite->session->inv_session, invite->rdata, 100, NULL, NULL, &tdata) != PJ_SUCCESS) {
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pjsip_inv_terminate(invite->session->inv_session, 500, PJ_TRUE);
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goto end;
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}
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ast_sip_session_send_response(invite->session, tdata);
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sdp_info = pjsip_rdata_get_sdp_info(invite->rdata);
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