FreeCalypso > hg > themwi-system-sw
view sip-in/bye_out.c @ 89:e64d4d44025d
sip-in/readconf.c: first step toward non-trivial settings
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 23 Sep 2022 18:51:42 -0800 |
parents | ff4b76a107a1 |
children | a9137bdb6047 |
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/* * In this module we implement our UAC functionality of sending BYE. */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <syslog.h> #include "../libsip/parse.h" #include "../libsip/out_msg.h" #include "call.h" extern char *get_single_header(); extern struct call *find_call_by_sip_id(); extern struct in_addr sip_bind_ip; extern unsigned sip_bind_port; fill_bye_out_msg(msg, call) struct sip_msg_out *msg; struct call *call; { char strbuf[80]; int rc; rc = start_request_out_msg_urilen(msg, "BYE", call->from_uri, call->from_uri_len); if (rc < 0) return rc; sprintf(strbuf, "SIP/2.0/UDP %s:%u", inet_ntoa(sip_bind_ip), sip_bind_port); rc = out_msg_add_header(msg, "Via", strbuf); if (rc < 0) return rc; rc = out_msg_add_header(msg, "From", call->invite_to); if (rc < 0) return rc; rc = out_msg_add_header(msg, "To", call->invite_from); if (rc < 0) return rc; rc = out_msg_add_header(msg, "Call-ID", call->sip_call_id); if (rc < 0) return rc; rc = out_msg_add_header(msg, "CSeq", "1 BYE"); if (rc < 0) return rc; rc = out_msg_add_header(msg, "Max-Forwards", "70"); if (rc < 0) return rc; out_msg_finish(msg); return 0; } void initiate_bye(call) struct call *call; { struct sip_msg_out msg; int rc; rc = fill_bye_out_msg(&msg, call); if (rc < 0) { syslog(LOG_ERR, "outgoing BYE request msg length exceeded"); call->sip_state = SIP_STATE_MSG_SIZE_ERR; /* TODO: transition from TEARDOWN to DEAD_SIP */ return; } sip_tx_packet(&msg, &call->udp_sin); call->sip_state = SIP_STATE_BYE_SENT; call->sip_tx_count = 1; } void process_sip_response(msg, sin) struct sip_pkt_rx *msg; struct sockaddr_in *sin; { char *call_id_hdr, *cseq_hdr; struct call *call; call_id_hdr = get_single_header(msg, "Call-ID", "i", (int *) 0); if (!call_id_hdr) return; call = find_call_by_sip_id(call_id_hdr); if (!call) return; cseq_hdr = get_single_header(msg, "CSeq", (char *) 0, (int *) 0); if (!cseq_hdr) return; if (strcmp(cseq_hdr, "1 BYE")) { syslog(LOG_ERR, "UAC received response with unknown CSeq %.32s", cseq_hdr); return; } if (msg->status_code < 200) return; if (call->sip_state == SIP_STATE_BYE_SENT) call->sip_state = SIP_STATE_ENDED; }