FreeCalypso > hg > themwi-system-sw
view sip-manual-out/bye_in.c @ 199:e6c7ced3c031
mgw: accept zero-length RTP payload as BFI
Mainline OsmoBTS now has an option (rtp continuous-streaming)
that causes it to emit an RTP packet every 20 ms without gaps,
sending a BFI marker in the form of zero-length RTP payload
when it has nothing else to send. These codec-independent
BFI markers don't indicate TAF, but this provision is a good
start. Accept this BFI packet format in themwi-mgw.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 29 Mar 2023 20:23:43 -0800 |
parents | f8a33603288f |
children |
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/* * Here we handle incoming BYE requests in the UAS role. */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "../libsip/parse.h" #include "../libsip/uas_basic.h" #include "../libsip/out_msg.h" extern char call_id[]; extern int rtp_out_enable; static void bye_correct_call(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { struct sip_msg_out resp; int rc; printf("Received BYE for our call, responding with 200\n"); rtp_out_enable = 0; start_response_out_msg(&resp, "200 OK"); rc = add_resp_basic_headers(&resp, ess, req->req_method); if (rc < 0) { fprintf(stderr, "sending 200 response: msg length exceeded\n"); return; } out_msg_finish(&resp); sip_tx_packet(&resp, sin); } static void bye_unknown_call(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { struct sip_msg_out resp; int rc; printf("Received BYE for unknown call, responding with 481\n"); start_response_out_msg(&resp, "481 Call-ID not found"); rc = add_resp_basic_headers(&resp, ess, req->req_method); if (rc < 0) { fprintf(stderr, "sending 481 response: msg length exceeded\n"); return; } out_msg_finish(&resp); sip_tx_packet(&resp, sin); } void handle_bye_req(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { if (!strcmp(ess->call_id, call_id)) bye_correct_call(req, ess, sin); else bye_unknown_call(req, ess, sin); }