FreeCalypso > hg > themwi-system-sw
view sip-out/uac_resp.c @ 233:60f6e561bfb8
libnumdb2: start with readbin.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 14 Aug 2023 13:10:38 -0800 |
parents | 83022d408071 |
children |
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/* * In this module we implement our handling of SIP responses in the UAC role. */ #include <sys/types.h> #include <sys/socket.h> #include <sys/time.h> #include <netinet/in.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <syslog.h> #include "../include/gsm48_const.h" #include "../include/out_routes.h" #include "../libsip/parse.h" #include "../libsip/resp_ident.h" #include "call.h" extern struct call *find_call_by_sip_id(); extern unsigned sip_linger_timeout; extern unsigned sip_linger_bye_out_ok; extern unsigned sip_linger_bye_out_err; void handle_bye_response(call, msg, sin) struct call *call; struct sip_pkt_rx *msg; struct sockaddr_in *sin; { if (msg->status_code != 200) syslog(LOG_ERR, "non-200 response to BYE: %.64s", msg->status_str); if (msg->status_code < 200) return; if (call->sip_state == SIP_STATE_BYE_SENT) { call->sip_state = SIP_STATE_ENDED; if (msg->status_code <= 299) sip_mark_end_time(call, sip_linger_bye_out_ok); else sip_mark_end_time(call, sip_linger_bye_out_err); } } void handle_cancel_response(call, msg, sin) struct call *call; struct sip_pkt_rx *msg; struct sockaddr_in *sin; { if (msg->status_code != 200) syslog(LOG_ERR, "non-200 response to CANCEL: %.64s", msg->status_str); if (msg->status_code < 200) return; if (call->sip_state == SIP_STATE_CANCEL_SENT) { call->sip_state = SIP_STATE_ACCEPT_200; if (msg->status_code <= 299) sip_mark_end_time(call, sip_linger_timeout); else sip_mark_end_time(call, sip_linger_bye_out_err); } } void process_sip_response(msg, sin) struct sip_pkt_rx *msg; struct sockaddr_in *sin; { struct sip_resp_ident rid; struct call *call; int rc; rc = sip_resp_extract_ident(msg, &rid); if (rc < 0) { syslog(LOG_ERR, "SIP %03u response: bad or missing %s header", msg->status_code, rid.error_field); return; } call = find_call_by_sip_id(rid.call_id); if (!call) { syslog(LOG_ERR, "SIP %03u response: unmatched Call-ID", msg->status_code); return; } if (rid.cseq_num == 1 && !strcmp(rid.cseq_method, "INVITE")) handle_invite_response(call, msg, sin); else if (rid.cseq_num == 1 && !strcmp(rid.cseq_method, "CANCEL")) handle_cancel_response(call, msg, sin); else if (rid.cseq_num == 2 && !strcmp(rid.cseq_method, "BYE")) handle_bye_response(call, msg, sin); else syslog(LOG_ERR, "UAC received %03u response with unknown CSeq %u %.32s", msg->status_code, rid.cseq_num, rid.cseq_method); }