[sr-dev] git:master:13e876e4: core: kemi - added KSR.to_UDP() - return true if target is over UDP

Module: kamailio Branch: master Commit: 13e876e45ad34a9d567d41293450307816bdf107 URL: https://github.com/kamailio/kamailio/commit/13e876e45ad34a9d567d41293450307… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2021-06-14T13:22:35+02:00 core: kemi - added KSR.to_UDP() - return true if target is over UDP - uses the R-URI/D-URI for requests (no DNS query done if transport is missing) and 2nd Via for replies --- Modified: src/core/kemi.c --- Diff: https://github.com/kamailio/kamailio/commit/13e876e45ad34a9d567d41293450307… Patch: https://github.com/kamailio/kamailio/commit/13e876e45ad34a9d567d41293450307… --- diff --git a/src/core/kemi.c b/src/core/kemi.c index 065eba9c2c..76bfdbcc29 100644 --- a/src/core/kemi.c +++ b/src/core/kemi.c @@ -1536,6 +1536,57 @@ static int sr_kemi_core_route(sip_msg_t *msg, str *route) return ret; } +/** + * + */ +static int sr_kemi_core_to_proto_helper(sip_msg_t *msg) +{ + sip_uri_t parsed_uri; + str uri; + + if(msg==NULL) { + return -1; + } + if(msg->first_line.type == SIP_REPLY) { + /* REPLY doesnt have r/d-uri - use second Via */ + if(parse_headers( msg, HDR_VIA2_F, 0)==-1) { + LM_DBG("no 2nd via parsed\n"); + return -1; + } + if((msg->via2==0) || (msg->via2->error!=PARSE_OK)) { + return -1; + } + return (int)msg->via2->proto; + } + if (msg->dst_uri.s != NULL && msg->dst_uri.len>0) { + uri = msg->dst_uri; + } else { + if (msg->new_uri.s!=NULL && msg->new_uri.len>0) + { + uri = msg->new_uri; + } else { + uri = msg->first_line.u.request.uri; + } + } + if(parse_uri(uri.s, uri.len, &parsed_uri)!=0) { + LM_ERR("failed to parse nh uri [%.*s]\n", uri.len, uri.s); + return -1; + } + return (int)parsed_uri.proto; +} + +/** + * + */ +static int sr_kemi_core_to_proto_udp(sip_msg_t *msg) +{ + int proto; + + proto = sr_kemi_core_to_proto_helper(msg); + return (proto == PROTO_UDP)?SR_KEMI_TRUE:SR_KEMI_FALSE; +} + + /** * */ @@ -1925,6 +1976,11 @@ static sr_kemi_t _sr_kemi_core[] = { { SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE } }, + { str_init(""), str_init("to_UDP"), + SR_KEMIP_BOOL, sr_kemi_core_to_proto_udp, + { SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, + SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE } + }, { str_init(""), str_init("is_src_port"), SR_KEMIP_BOOL, sr_kemi_core_is_src_port, { SR_KEMIP_INT, SR_KEMIP_NONE, SR_KEMIP_NONE,