Module: sip-router Branch: tma0/iptrtpproxy-v2 Commit: df7555de5100e9571f0b7d32132a25e85cdb58c4 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=df7555de...
Author: Tomas Mandys tomas.mandys@iptel.org Committer: Tomas Mandys tomas.mandys@iptel.org Date: Wed Dec 14 20:52:37 2011 +0100
RTP proxy PRACK without SDP fix
- new flag added to cope with 180/PRACK without SDP
---
.../oob/sip-router-oob-RTPPROXY.cfg.inc | 44 ++++++++++++++------ 1 files changed, 31 insertions(+), 13 deletions(-)
diff --git a/modules/iptrtpproxy/oob/sip-router-oob-RTPPROXY.cfg.inc b/modules/iptrtpproxy/oob/sip-router-oob-RTPPROXY.cfg.inc index 34baf2c..41f0f10 100644 --- a/modules/iptrtpproxy/oob/sip-router-oob-RTPPROXY.cfg.inc +++ b/modules/iptrtpproxy/oob/sip-router-oob-RTPPROXY.cfg.inc @@ -22,6 +22,7 @@ # $rtp_dlg_sess_ids ... list of confirmed (INVITE/200OK/ACK, INVITE/180/PRACK, UPDATE/200OK ) RTP sessions # $rtp_dlg_sess_ids2 ... list of non-confirmed sessions # $rtp_method_flag ... request method passed to onreply/failure +# $rtp_dlg_state ... ""..no offer yet, "o"..offered, "a"..answered # # rtpproxy.* configuration params # @@ -35,7 +36,7 @@ loadmodule "iptrtpproxy" modparam("iptrtpproxy", "config", "/etc/iptrtpproxy.cfg");
#DEBCONF-RTTPPROXY-START -modparam("iptrtpproxy", "switchboard", "name=*;sip-addr=213.192.59.75"); ## TODO change back to .75 +modparam("iptrtpproxy", "switchboard", "name=*;sip-addr=213.192.30.136"); #modparam("iptrtpproxy", "switchboard", "name=gate_a;sip-addr=1.2.3.4;aggregation=AA") #modparam("iptrtpproxy", "switchboard", "name=gate_b;aggregation=A") modparam("iptrtpproxy", "codec_set", "name=any;media_type=*;rights=0;codecs=*;max_streams=9999"); @@ -81,7 +82,7 @@ route[RTPPROXY_PROCESS_REQUEST] { } if (!defined $dialog_id) { # AVP loaded from route cookie if (@method != "ACK") - t_reply("400", "Missing cookie"); # 500 (=our bug) in case of init request because it'd been generated by ourselves + t_reply("400", "Missing cookie"); # 500 (=our bug) in case of init request because it had been generated by ourselves xlog("L_EDEBUG", "RTPPROXY_PROCESS_REQUEST: missing cookie: %@hf_value.route[0]\n"); drop; } @@ -125,7 +126,7 @@ route[RTPPROXY_PROCESS_REQUEST] { } }
- if ((method == "INVITE" || method == "UPDATE") && @msg.body!="") { + if ((method == "INVITE" || method == "UPDATE" || method == "PRACK") && @msg.body!="") { if (@iptrtpproxy.active_media_num == "0") break; iptrtpproxy_set_param("codec_set", "@cfg_get.rtp_proxy.codec_set"); iptrtpproxy_set_param("remove_codec_mask", "1"); @@ -146,7 +147,7 @@ route[RTPPROXY_PROCESS_REQUEST] { xlog("L_EDEBUG", "RTPPROXY_PROCESS_REQUEST: find switchboard-a for '%@received.ip'\n"); if (!iptrtpproxy_set_param("switchboard_by_sip_ip_a", "@received.ip")) { xlog("L_ERR", "RTPPROXY_PROCESS_REQUEST: Cannot find switchboard-a for routing '%@received.ip'\n"); - t_reply("500", "RTP proxy error"); + t_reply("500", "RTP proxy error (switchboard-a)"); drop; } eval_push("x:%@next_hop.src_ip"); @@ -157,7 +158,7 @@ route[RTPPROXY_PROCESS_REQUEST] { xlog("L_EDEBUG", "RTPPROXY_PROCESS_REQUEST: find switchboard-b for '%@eval.get[-1]'\n"); if (!iptrtpproxy_set_param("switchboard_by_sip_ip_b", "@eval.get[-1]")) { xlog("L_ERR", "RTPPROXY_PROCESS_REQUEST: Cannot find switchboard for routing '%@eval.get[-1]'\n"); - t_reply("500", "RTP proxy error"); + t_reply("500", "RTP proxy error (switchboard-b)"); drop; } } @@ -215,16 +216,19 @@ route[RTPPROXY_PROCESS_REQUEST] { } else { eval_push("1"); # caller -> callee } - if (!iptrtpproxy_alloc("@eval.pop[-1]")) { - t_reply("500", "RTP proxy error"); + if (!iptrtpproxy_alloc("@eval.pop[-1]")) { + t_reply("503", "RTP proxy error (no free port)"); drop; } # we need save in dialog as non-confirmed sess_ids (not only in transaction) because # UPDATE in non-confirmed INVITE and ACK to 200OK are considered as separate transactions. - if (@iptrtpproxy.session_ids != "") + if (@iptrtpproxy.session_ids != "") { $rtp_dlg_sess_ids2 = @iptrtpproxy.session_ids; - else + $rtp_dlg_state = "o"; # offered + } else { del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); + }
xlog("L_EDEBUG", "RTPPROXY_PROCESS_REQUEST: allocated ids2=%$rtp_dlg_sess_ids2\n"); # session_ids are stored in AVP to let commit (on_reply) or rollback (on_failure) allocated sessions @@ -245,10 +249,14 @@ route[RTPPROXY_PROCESS_REQUEST] { if (strempty($rtp_dlg_sess_ids2)) { break; /* do not save, non SDP related re-INVITE or retrasmission which is not eaten by tm module, SDP in ACK is not supported */ } + if (!defined $rtp_dlg_state || $rtp_dlg_state != "a") { + break; /* e.g. PRACK to 180 without SDP */ + } iptrtpproxy_set_param("protected_session_ids", "$rtp_dlg_sess_ids2"); iptrtpproxy_delete("$rtp_dlg_sess_ids"); $rtp_dlg_sess_ids = $rtp_dlg_sess_ids2; del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); route("RTPPROXY_SAVE_ATTRS"); } else if (method == "BYE") { # CANCEL ??? @@ -291,7 +299,7 @@ route[RTPPROXY_PROCESS_REPLY] { # (probably) no retransmission route("RTPPROXY_LOAD_ATTRS"); $rtp_last_code = @msg.res.code; - if (isflagset(FLAG_INIT_DLG) && status=~"18[0-9]") { + if (isflagset(FLAG_INIT_DLG) && status=~"1[0-9][0-9]") { # 100 is impossible, eaten by tm iptrtpproxy_set_param("learning_timeout", "@cfg_get.rtp_proxy.ringing_timeout"); } else { @@ -342,6 +350,7 @@ route[RTPPROXY_PROCESS_REPLY] { ; # drop; ??? } + $rtp_dlg_state = "a"; # answered route("RTPPROXY_SAVE_ATTRS"); } else { @@ -362,9 +371,13 @@ route[RTPPROXY_PROCESS_REPLY] { else if ($rtp_method_flag == "UPDATE" && status=~"2[0-9][0-9]" && $rtp_dlg_sess_ids2!="") { # confirm pending offer (UPDATE is not followed by ACK/PRACK) route("RTPPROXY_LOAD_ATTRS"); - xlog("L_EDEBUG", "RTPPROXY_PROCESS_REPLY: %@method, delete(ids=%$rtp_dlg_sess_ids), protect(ids2=%$rtp_dlg_sess_ids2)\n"); + xlog("L_EDEBUG", "RTPPROXY_PROCESS_REPLY: %@method, delete(ids=%$rtp_dlg_sess_ids), protect(ids2=%$rtp_dlg_sess_ids2, state=%$rtp_dlg_state)\n"); + if (!defined $rtp_dlg_state || $rtp_dlg_state != "o") { + break; + } iptrtpproxy_set_param("protected_session_ids", "$rtp_dlg_sess_ids2"); iptrtpproxy_delete("$rtp_dlg_sess_ids"); + $rtp_dlg_state = "a"; # answered $rtp_dlg_sess_ids = $rtp_dlg_sess_ids2; del_attr("$rtp_dlg_sess_ids2"); route("RTPPROXY_SAVE_ATTRS"); @@ -385,13 +398,14 @@ route[RTPPROXY_PROCESS_FAILURE] { iptrtpproxy_delete("$rtp_dlg_sess_ids"); # early media are considered as confirmed iptrtpproxy_delete("$rtp_dlg_sess_ids2"); route("RTPPROXY_REMOVE_ATTRS"); - } else if ($rtp_method_flag == "INVITE" || $rtp_method_flag == "UPDATE") { + } else if ($rtp_method_flag == "INVITE" || $rtp_method_flag == "UPDATE" || $rtp_method_flag == "PRACK") { route("RTPPROXY_LOAD_ATTRS"); #remove only unconfirmed sessiosn xlog("L_EDEBUG", "RTPPROXY_PROCESS_FAILURE: %@method, delete(ids2=%$rtp_dlg_sess_ids2), protect(ids=%$rtp_dlg_sess_ids)\n"); iptrtpproxy_set_param("protected_session_ids", "$rtp_dlg_sess_ids"); iptrtpproxy_delete("$rtp_dlg_sess_ids2"); del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); route("RTPPROXY_SAVE_ATTRS"); }
@@ -407,23 +421,27 @@ route[RTPPROXY_PROCESS_FAILURE] { route[RTPPROXY_LOAD_ATTRS] { del_attr("$rtp_dlg_sess_ids"); del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); load_extra_attrs("rtp_dlg", "$dialog_id"); - xlog("L_EDEBUG", "RTPPROXY_LOAD_ATTRS: dialog_id=%$dialog_id, method/flag='%@method'/'%$rtp_method_flag', ids=%$rtp_dlg_sess_ids, ids2=%$rtp_dlg_sess_ids2\n"); + xlog("L_EDEBUG", "RTPPROXY_LOAD_ATTRS: dialog_id=%$dialog_id, method/flag='%@method'/'%$rtp_method_flag', ids=%$rtp_dlg_sess_ids, ids2=%$rtp_dlg_sess_ids2, state=%$rtp_dlg_state\n"); }
route[RTPPROXY_SAVE_ATTRS] { xlog("L_EDEBUG", "RTPPROXY_SAVE_ATTRS: dialog_id=%$dialog_id, method='%@method', ids=%$rtp_dlg_sess_ids, ids2=%$rtp_dlg_sess_ids2\n"); setavpflag("$f.rtp_dlg_sess_ids", "rtpproxy_dlg"); setavpflag("$f.rtp_dlg_sess_ids2", "rtpproxy_dlg"); + setavpflag("$f.rtp_dlg_state", "rtpproxy_dlg"); save_extra_attrs("rtp_dlg", "$dialog_id"); del_attr("$rtp_dlg_sess_ids"); del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); }
route[RTPPROXY_REMOVE_ATTRS] { xlog("L_EDEBUG", "RTPPROXY_REMOVE_ATTRS: dialog_id=%$dialog_id, method='%@method'\n"); del_attr("$rtp_dlg_sess_ids"); del_attr("$rtp_dlg_sess_ids2"); + del_attr("$rtp_dlg_state"); remove_extra_attrs("rtp_dlg", "$dialog_id"); }
-
Tomas Mandys