themwi-system-sw: sip-in/invite

annotate sip-in/invite_init.c @ 253:54f78df265fe

utils/Makefile: old themwi-{dump,update}-numdb are now no-install

author	Mychaela Falconia <falcon@freecalypso.org>
date	Mon, 14 Aug 2023 23:55:55 -0800
parents	27408ac6e863
children

rev	line source
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*
145 4b685a5d9bd4 sip-in code: split invite.c into 3 separate C modules Mychaela Falconia <falcon@freecalypso.org> parents: 117 diff changeset	2 * Here we implement our initial processing of SIP INVITE requests.
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 */
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 #include <sys/types.h>
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 #include <sys/socket.h>
109 9b87894704eb sip-in: first step toward final call clearing Mychaela Falconia <falcon@freecalypso.org> parents: 108 diff changeset	7 #include <sys/time.h>
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 #include <netinet/in.h>
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 #include <stdio.h>
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	10 #include <stdint.h>
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 #include <stdlib.h>
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12 #include <string.h>
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 #include <strings.h>
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14 #include <syslog.h>
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	15 #include "../include/number_db_v2.h"
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	16 #include "../libnumdb2/lookup_func.h"
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17 #include "../libsip/parse.h"
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 #include "../libsip/uas_basic.h"
51 36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	19 #include "../libsip/grok_from.h"
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	20 #include "../libsip/req_supp.h"
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	21 #include "../libsip/sdp.h"
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22 #include "../libsip/out_msg.h"
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	23 #include "call.h"
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	25 extern struct in_addr sip_bind_ip;
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	26 extern int cfg_use_100rel;
104 ce3b1db7d1d7 sip-in: force-pcma-codec config option to use PCMA when both are offered Mychaela Falconia <falcon@freecalypso.org> parents: 77 diff changeset	27 extern int cfg_force_pcma;
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	28 extern struct call *call_list;
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	29
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	30 extern struct call *find_call_by_sip_id();
50 daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	31 extern char *get_single_header();
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	32
145 4b685a5d9bd4 sip-in code: split invite.c into 3 separate C modules Mychaela Falconia <falcon@freecalypso.org> parents: 117 diff changeset	33 void
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	34 invite_new_call(req, ess, sin)
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 struct sip_pkt_rx *req;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 struct uas_parse_hdrs *ess;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 struct sockaddr_in *sin;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 {
77 fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	39 static unsigned cycle_tag_num, cycle_sdp_addend;
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	40 char uri_user[13], *called_nanp, redir_nanp[11];
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	41 struct owned_number_rec *own;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	42 int is_redir;
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 struct sip_msg_out resp;
51 36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	44 struct grok_from gfrom;
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	45 struct supported_ext supp_ext;
50 daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	46 char hval, unsup_ext;
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	47 int ext_100rel_req, ext_100rel_sup, use_100rel, use_pcma;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	48 struct sdp_parse sdp_parse;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	49 struct sdp_gen sdp_gen;
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	50 struct call *call;
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	51 char *dp, cdr_str[80];
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	52 unsigned cdr_num_len, cdr_cnam_len;
76 21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	53 unsigned req_uri_len, to_hdr_len, copylen;
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54 int rc;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 /* extract called number from Request-URI */
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 rc = user_from_sip_uri(req->req_uri, uri_user, 12);
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 if (rc < 0) {
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59 not_nanp: start_response_out_msg(&resp,
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 "416 Request-URI is not a NANP number");
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 error_resp: rc = add_resp_basic_headers(&resp, ess, req->req_method);
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 if (rc < 0) {
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	63 error_resp_toolong: syslog(LOG_ERR,
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	64 "INVITE early error response length exceeded");
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 return;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 }
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 out_msg_finish(&resp);
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 sip_tx_packet(&resp, sin);
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	69 return;
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70 }
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 if (uri_user[0] == '+') {
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72 if (grok_number_string(uri_user+1, 0) != 11 \|\|
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 uri_user[1] != '1')
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 goto not_nanp;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 called_nanp = uri_user + 2;
248 257da5474e77 sip-in: fix bug in incoming number validation for non-plus Mychaela Falconia <falcon@freecalypso.org> parents: 145 diff changeset	76 } else switch (grok_number_string(uri_user, 0)) {
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77 case 10:
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78 called_nanp = uri_user;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79 break;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 case 11:
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81 if (uri_user[0] != '1')
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82 goto not_nanp;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83 called_nanp = uri_user + 1;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84 break;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 default:
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 goto not_nanp;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87 }
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 if (!is_nanp_valid_prefix(called_nanp))
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 goto not_nanp;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 /* it is valid NANP - but is it one of ours? */
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91 refresh_number_db();
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	92 own = numdb_lookup_nanp(called_nanp);
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	93 if (!own) {
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94 start_response_out_msg(&resp,
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 "404 Called number does not belong here");
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96 goto error_resp;
8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 }
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	98 switch (own->usage & NUMBER_USAGE_MASK) {
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	99 case NUMBER_USAGE_TYPE_GSM_SUB:
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	100 is_redir = 0;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	101 break;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	102 case NUMBER_USAGE_TYPE_ALIAS:
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	103 is_redir = 1;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	104 sprintf(redir_nanp, "%03u%03u%04u",
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	105 own->remap[0], own->remap[1], own->remap[2]);
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	106 break;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	107 default:
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	108 is_redir = -1; /* log CDR before rejecting */
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	109 }
51 36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	110 /* parse and validate From header */
36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	111 rc = grok_from_header(ess->from, &gfrom);
36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	112 if (rc < 0) {
36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	113 start_response_out_msg(&resp, "400 Malformed From header");
36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	114 goto error_resp;
36a30349b490 sip-in: parse INVITE From header Mychaela Falconia <falcon@freecalypso.org> parents: 50 diff changeset	115 }
76 21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	116 /* validate To header for the purpose of tag addition */
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	117 req_uri_len = strlen(req->req_uri);
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	118 to_hdr_len = strlen(ess->to);
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	119 if (to_hdr_len == req_uri_len) {
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	120 if (strcasecmp(ess->to, req->req_uri)) {
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	121 bad_to_header: start_response_out_msg(&resp, "400 Bad To header");
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	122 goto error_resp;
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	123 }
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	124 } else if (to_hdr_len == req_uri_len + 2) {
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	125 if (ess->to[0] != '<')
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	126 goto bad_to_header;
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	127 if (strncasecmp(ess->to+1, req->req_uri, req_uri_len))
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	128 goto bad_to_header;
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	129 if (ess->to[req_uri_len+1] != '>')
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	130 goto bad_to_header;
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	131 } else
21276f045026 sip-in: validate To header prior to tag addition Mychaela Falconia <falcon@freecalypso.org> parents: 66 diff changeset	132 goto bad_to_header;
49 dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	133 /* check 100rel and catch any unsupported requirements */
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	134 supp_ext.name = "100rel";
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	135 supp_ext.req_flag = &ext_100rel_req;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	136 supp_ext.sup_flag = &ext_100rel_sup;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	137 ext_100rel_req = ext_100rel_sup = 0;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	138 rc = parse_require_supported(req, &supp_ext, 1, &unsup_ext);
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	139 if (rc < 0) {
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	140 start_response_out_msg(&resp, "420 Extension not supported");
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	141 rc = out_msg_add_header(&resp, "Unsupported", unsup_ext);
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	142 if (rc < 0)
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	143 goto error_resp_toolong;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	144 goto error_resp;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	145 }
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	146 if (ext_100rel_req)
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	147 use_100rel = 1;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	148 else if (ext_100rel_sup)
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	149 use_100rel = cfg_use_100rel;
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	150 else
dec31b1a8b96 sip-in: check Require and Supported Mychaela Falconia <falcon@freecalypso.org> parents: 48 diff changeset	151 use_100rel = 0;
50 daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	152 /* did the caller send an SDP message body? */
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	153 if (!req->msg_body_len) {
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	154 start_response_out_msg(&resp, "415 Missing SDP body");
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	155 error_415: rc = out_msg_add_header(&resp, "Accept", "application/sdp");
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	156 if (rc < 0)
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	157 goto error_resp_toolong;
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	158 goto error_resp;
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	159 }
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	160 hval = get_single_header(req, "Content-Type", "c", (int *) 0);
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	161 if (!hval) {
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	162 start_response_out_msg(&resp,
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	163 "415 Missing Content-Type header");
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	164 goto error_415;
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	165 }
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	166 if (strcasecmp(hval, "application/sdp")) {
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	167 start_response_out_msg(&resp, "415 Unsupported Content-Type");
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	168 goto error_415;
daf1c26d7ae2 sip-in: check INVITE Content-Type header Mychaela Falconia <falcon@freecalypso.org> parents: 49 diff changeset	169 }
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	170 rc = parse_incoming_sdp(req->msg_body, req->msg_body_len, &sdp_parse);
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	171 if (rc < 0) {
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	172 start_response_out_msg(&resp, "488 Malformed SDP body");
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	173 goto error_resp;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	174 }
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	175 switch (sdp_parse.codec_mask) {
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	176 case SDP_CODEC_MASK_PCMU:
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	177 use_pcma = 0;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	178 break;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	179 case SDP_CODEC_MASK_PCMA:
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	180 case SDP_CODEC_MASK_BOTH \| SDP_CODEC_MASK_PCMA_PREF:
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	181 use_pcma = 1;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	182 break;
104 ce3b1db7d1d7 sip-in: force-pcma-codec config option to use PCMA when both are offered Mychaela Falconia <falcon@freecalypso.org> parents: 77 diff changeset	183 case SDP_CODEC_MASK_BOTH:
ce3b1db7d1d7 sip-in: force-pcma-codec config option to use PCMA when both are offered Mychaela Falconia <falcon@freecalypso.org> parents: 77 diff changeset	184 use_pcma = cfg_force_pcma;
ce3b1db7d1d7 sip-in: force-pcma-codec config option to use PCMA when both are offered Mychaela Falconia <falcon@freecalypso.org> parents: 77 diff changeset	185 break;
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	186 default:
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	187 start_response_out_msg(&resp,
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	188 "488 Unsupported codec selection");
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	189 rc = add_resp_basic_headers(&resp, ess, req->req_method);
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	190 if (rc < 0)
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	191 goto error_resp_toolong;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	192 rc = out_msg_add_header(&resp, "Content-Type",
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	193 "application/sdp");
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	194 if (rc < 0)
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	195 goto error_resp_toolong;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	196 bzero(&sdp_gen, sizeof sdp_gen);
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	197 sdp_gen.owner_ip = sip_bind_ip;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	198 sdp_gen.conn_ip = sip_bind_ip;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	199 sdp_gen.codec_mask = SDP_CODEC_MASK_BOTH;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	200 rc = out_msg_finish_sdp(&resp, &sdp_gen);
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	201 if (rc < 0)
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	202 goto error_resp_toolong;
f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	203 sip_tx_packet(&resp, sin);
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	204 return;
55 f1d59210f7b2 sip-in INVITE processing: grok SDP Mychaela Falconia <falcon@freecalypso.org> parents: 51 diff changeset	205 }
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	206 /* SIP INVITE validation done - gather CDR info */
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	207 cdr_num_len = gfrom.user_len;
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	208 if (cdr_num_len > 33)
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	209 cdr_num_len = 33;
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	210 cdr_cnam_len = gfrom.cnam_len;
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	211 if (cdr_cnam_len > 33)
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	212 cdr_cnam_len = 33;
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	213 if (cdr_cnam_len)
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	214 sprintf(cdr_str, "%.s (%s%.s%s)", cdr_num_len, gfrom.user,
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	215 gfrom.cnam_quoted ? "\"" : "", cdr_cnam_len, gfrom.cnam,
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	216 gfrom.cnam_quoted ? "\"" : "");
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	217 else
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	218 sprintf(cdr_str, "%.*s", cdr_num_len, gfrom.user);
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	219 hval = get_single_header(req, "P-Asserted-Identity", (char *) 0,
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	220 (int *) 0);
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	221 /* weed out calls to unassigned numbers */
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	222 if (is_redir < 0) {
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	223 syslog(LOG_INFO, "Call from %s to %s: unassigned number",
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	224 cdr_str, uri_user);
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	225 if (hval)
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	226 syslog(LOG_INFO, "Down-call PAI: %.100s", hval);
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	227 start_response_out_msg(&resp,
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	228 "404 Called number is unassigned");
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	229 goto error_resp;
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	230 }
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	231 /* check if GSM service is up */
57 d61d0136f6a5 sip-in INVITE processing: return "GSM service is offline" indication Mychaela Falconia <falcon@freecalypso.org> parents: 55 diff changeset	232 rc = connect_gsm_mtcall();
d61d0136f6a5 sip-in INVITE processing: return "GSM service is offline" indication Mychaela Falconia <falcon@freecalypso.org> parents: 55 diff changeset	233 if (rc < 0) {
250 27408ac6e863 sip-in: consistent CDR logs for statelessly rejected calls Mychaela Falconia <falcon@freecalypso.org> parents: 249 diff changeset	234 gsm_offline: syslog(LOG_INFO, "Call from %s to %s: system is down", cdr_str,
27408ac6e863 sip-in: consistent CDR logs for statelessly rejected calls Mychaela Falconia <falcon@freecalypso.org> parents: 249 diff changeset	235 uri_user);
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	236 if (hval)
117 c93c339271a7 sip-in CDR syslog: put a safety limit on string length Mychaela Falconia <falcon@freecalypso.org> parents: 114 diff changeset	237 syslog(LOG_INFO, "Down-call PAI: %.100s", hval);
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	238 start_response_out_msg(&resp, "480 GSM service is offline");
57 d61d0136f6a5 sip-in INVITE processing: return "GSM service is offline" indication Mychaela Falconia <falcon@freecalypso.org> parents: 55 diff changeset	239 goto error_resp;
d61d0136f6a5 sip-in INVITE processing: return "GSM service is offline" indication Mychaela Falconia <falcon@freecalypso.org> parents: 55 diff changeset	240 }
107 372209628038 sip-in: handle themwi-mgw shutdown without terminating Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	241 rc = connect_tmgw_socket();
372209628038 sip-in: handle themwi-mgw shutdown without terminating Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	242 if (rc < 0)
372209628038 sip-in: handle themwi-mgw shutdown without terminating Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	243 goto gsm_offline;
57 d61d0136f6a5 sip-in INVITE processing: return "GSM service is offline" indication Mychaela Falconia <falcon@freecalypso.org> parents: 55 diff changeset	244 /* stateful processing begins */
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	245 call = malloc(sizeof(struct call) + strlen(ess->call_id) +
77 fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	246 strlen(ess->from) + req_uri_len + strlen(ess->via) + 19);
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	247 if (!call) {
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	248 syslog(LOG_CRIT, "failed malloc for incoming call!");
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	249 start_response_out_msg(&resp,
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	250 "503 Gateway resource allocation failure");
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	251 goto error_resp;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	252 }
77 fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	253 cycle_tag_num++;
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	254 if (cycle_tag_num >= 1000000)
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	255 cycle_tag_num = 0;
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	256 cycle_sdp_addend++;
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	257 if (cycle_sdp_addend >= 0x10000)
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	258 cycle_sdp_addend = 0;
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	259 bzero(call, sizeof(struct call));
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	260 dp = (char *)(call + 1);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	261 copylen = strlen(ess->call_id) + 1;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	262 call->sip_call_id = dp;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	263 bcopy(ess->call_id, dp, copylen);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	264 dp += copylen;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	265 copylen = strlen(ess->from) + 1;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	266 call->invite_from = dp;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	267 bcopy(ess->from, dp, copylen);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	268 dp += copylen;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	269 call->invite_to = dp;
77 fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	270 *dp++ = '<';
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	271 bcopy(req->req_uri, dp, req_uri_len);
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	272 dp += req_uri_len;
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	273 *dp++ = '>';
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	274 sprintf(dp, ";tag=in%06u", cycle_tag_num);
fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	275 dp += 14;
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	276 copylen = strlen(ess->via) + 1;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	277 call->invite_via = dp;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	278 bcopy(ess->via, dp, copylen);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	279 call->invite_cseq = ess->cseq_num;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	280 bcopy(sin, &call->udp_sin, sizeof(struct sockaddr_in));
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	281 bcopy(is_redir ? redir_nanp : called_nanp, call->called_nanp, 11);
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	282 call->from_uri = call->invite_from + (gfrom.uri - ess->from);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	283 call->from_uri_len = gfrom.uri_len;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	284 call->from_user = call->invite_from + (gfrom.user - ess->from);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	285 call->from_user_len = gfrom.user_len;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	286 call->use_100rel = use_100rel;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	287 call->pstn_rtp_remote.sin_family = AF_INET;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	288 call->pstn_rtp_remote.sin_addr = sdp_parse.ip_addr;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	289 call->pstn_rtp_remote.sin_port = htons(sdp_parse.audio_port);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	290 call->use_pcma = use_pcma;
113 bfc97065bf51 sip-in: syslog beginning and clearing of calls Mychaela Falconia <falcon@freecalypso.org> parents: 110 diff changeset	291 call->in_tag_num = cycle_tag_num;
77 fe39404092d9 sip-in: generate To tags Mychaela Falconia <falcon@freecalypso.org> parents: 76 diff changeset	292 call->sdp_addend = cycle_sdp_addend;
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	293 /* generate 100 response */
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	294 start_response_out_msg(&resp, "100 Proceeding");
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	295 rc = fill_invite_resp_from_call(&resp, call);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	296 if (rc < 0) {
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	297 syslog(LOG_ERR, "INVITE 100 response length exceeded");
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	298 free(call);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	299 return;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	300 }
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	301 out_msg_finish(&resp);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	302 sip_tx_packet(&resp, sin);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	303 /* add to call list */
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	304 call->next = call_list;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	305 call_list = call;
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	306 syslog(LOG_INFO, "Call in%06u from %s to %s", call->in_tag_num,
a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	307 cdr_str, uri_user);
249 e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	308 if (is_redir)
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	309 syslog(LOG_INFO, "Call in%06u redirected to %s",
e980fe9c186c sip-in: convert to libnumdb2 Mychaela Falconia <falcon@freecalypso.org> parents: 248 diff changeset	310 call->in_tag_num, redir_nanp);
114 a30c25fb4c2f sip-in: generate CDR syslog entries Mychaela Falconia <falcon@freecalypso.org> parents: 113 diff changeset	311 if (hval)
117 c93c339271a7 sip-in CDR syslog: put a safety limit on string length Mychaela Falconia <falcon@freecalypso.org> parents: 114 diff changeset	312 syslog(LOG_INFO, "Call in%06u PAI: %.100s", call->in_tag_num,
c93c339271a7 sip-in CDR syslog: put a safety limit on string length Mychaela Falconia <falcon@freecalypso.org> parents: 114 diff changeset	313 hval);
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	314 /* send CRCX to TMGW */
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	315 tmgw_send_crcx(call);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	316 call->overall_state = OVERALL_STATE_CRCX;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	317 call->sip_state = SIP_STATE_INVITE_PROC;
48 8117d8ee44a5 sip-in: beginning of INVITE handling Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 }
60 02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	319
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	320 void
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	321 handle_sip_invite(req, ess, sin)
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	322 struct sip_pkt_rx *req;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	323 struct uas_parse_hdrs *ess;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	324 struct sockaddr_in *sin;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	325 {
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	326 struct call *call;
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	327
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	328 call = find_call_by_sip_id(ess->call_id);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	329 if (call)
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	330 invite_existing_call(req, ess, sin, call);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	331 else
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	332 invite_new_call(req, ess, sin);
02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion Mychaela Falconia <falcon@freecalypso.org> parents: 57 diff changeset	333 }

FreeCalypso > hg > themwi-system-sw

annotate sip-in/invite_init.c @ 253:54f78df265fe