Module: kamailio Branch: master Commit: 70ecc623b1ae032a986f37547a7a81f332aedfcb URL: https://github.com/kamailio/kamailio/commit/70ecc623b1ae032a986f37547a7a81f3...

Author: Giacomo Vacca gv@rtcsoft.net Committer: Giacomo Vacca gv@rtcsoft.net Date: 2015-10-29T17:35:27+01:00

Accept a list of headers for callid_aleg_header

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Modified: modules/sipcapture/sipcapture.c

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Diff: https://github.com/kamailio/kamailio/commit/70ecc623b1ae032a986f37547a7a81f3... Patch: https://github.com/kamailio/kamailio/commit/70ecc623b1ae032a986f37547a7a81f3...

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diff --git a/modules/sipcapture/sipcapture.c b/modules/sipcapture/sipcapture.c index 0151fce..256ddc7 100644 --- a/modules/sipcapture/sipcapture.c +++ b/modules/sipcapture/sipcapture.c @@ -95,6 +95,8 @@ MODULE_VERSION #define NR_KEYS 40 #define RTCP_NR_KEYS 12

+#define MAX_HEADERS 16 + /*multiple table mode*/ enum e_mt_mode{ mode_random = 1, @@ -138,6 +140,9 @@ static int w_sip_capture(struct sip_msg* _m, char* _table, _capture_mode_data_t static int w_report_capture(struct sip_msg* _m, char* _table, char* _corr, char* _data); static int w_float2int(struct sip_msg* _m, char* _val, char* _coof, char* s2);

+static int sipcapture_parse_aleg_callid_headers(); +int parse_aleg_callid_headers(str *headers_str, str *headers); + int init_rawsock_children(void); int extract_host_port(void); int raw_capture_socket(struct ip_addr* ip, str* iface, int port_start, int port_end, int proto); @@ -216,6 +221,9 @@ str raw_socket_listen = { 0, 0 }; str raw_interface = { 0, 0 }; char *authkey = NULL, *correlation_id = NULL;

+str callid_aleg_headers[MAX_HEADERS]; +int n_callid_aleg_headers = 0; + struct ifreq ifr; /* interface structure */

#ifdef __OS_linux @@ -738,6 +746,10 @@ static int mod_init(void) {

pkg_free(def_params);

+ if (sipcapture_parse_aleg_callid_headers() < 0) { + return -1; + } +

#ifdef STATISTICS

@@ -1692,10 +1704,15 @@ static int sip_capture(struct sip_msg *msg, str *_table, _capture_mode_data_t * }

/* callid_aleg - default is X-CID but configurable via modul params */ - if((tmphdr[0] = get_hdr_by_name(msg, callid_aleg_header.s, callid_aleg_header.len)) != NULL) { - sco.callid_aleg = tmphdr[0]->body; - } - else { EMPTY_STR(sco.callid_aleg);} + EMPTY_STR(sco.callid_aleg); + int index; + for (index = 0; index < n_callid_aleg_headers; index++) { + if((tmphdr[0] = get_hdr_by_name(msg, callid_aleg_headers[index].s, callid_aleg_headers[index].len)) != NULL) { + LM_DBG("MATCHED header %.*s\n", callid_aleg_headers[index].len, callid_aleg_headers[index].s); + sco.callid_aleg = tmphdr[0]->body; + break; + } + } /* VIA 1 */ sco.via_1 = msg->h_via1->body; @@ -2527,3 +2544,53 @@ static int report_capture(struct sip_msg *msg, str *_table, str* _corr, str *_d

}

+// Algorithm optimized by coudot +int parse_aleg_callid_headers(str *headers_str, str *headers){ + if (headers_str->len == 0) { + return 0; + } + + int index = 0; + int begin = 0; + int current = 0; + + while ((index < headers_str->len) && (current < MAX_HEADERS)) { + // End of headers string + if ((index == headers_str->len - 1) && (headers_str->s[index] != ';')) { + headers[current].s = headers_str->s + begin; + headers[current].len = index + 1 - begin; + current++; + break; + } + else if (headers_str->s[index] == ';') { + // Skip empty header + if (begin == index) { + begin++; + } + else { + // Another header identified + headers[current].s = headers_str->s + begin; + headers[current].len = index - begin; + current++; + begin = index + 1; + } + } + // Move to next char + index++; + } + + // current now holds the number of headers + return current; +} + +static int sipcapture_parse_aleg_callid_headers() { + int i; + n_callid_aleg_headers = parse_aleg_callid_headers(&callid_aleg_header, callid_aleg_headers); + LM_DBG("Number of headers:%d\n", n_callid_aleg_headers); + + for (i=0; i < n_callid_aleg_headers; i++) { + LM_DBG("Header: %.*s\n", callid_aleg_headers[i].len, callid_aleg_headers[i].s); + } + + return n_callid_aleg_headers; +}