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<div id="msg">
<div id="header">FreeSWITCH Subversion</div>
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://fisheye.freeswitch.org/changelog/FreeSWITCH?cs=14167">14167</a></dd>
<dt>Author</dt> <dd>mikej</dd>
<dt>Date</dt> <dd>2009-07-09 11:00:36 -0500 (Thu, 09 Jul 2009)</dd>
</dl>
<h3>Log Message</h3>
<pre>Tue Jul 7 12:50:57 CDT 2009 Pekka Pessi <first.last@nokia.com>
* nta.c: handling of forked transactions getting CANCELed and timing out
Ignore-this: 30a92f1c8721f9d3fa22b9611ac9e7b1
Fixes freeswitch.org bug <a href="http://jira.freeswitch.org/browse/FSCORE-338">FSCORE-338</a>.
Thanks for Gabriel Kuri for reporting the problem.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#freeswitchtrunklibssofiasipupdate">freeswitch/trunk/libs/sofia-sip/.update</a></li>
<li><a href="#freeswitchtrunklibssofiasiplibsofiasipuantantac">freeswitch/trunk/libs/sofia-sip/libsofia-sip-ua/nta/nta.c</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="freeswitchtrunklibssofiasipupdate"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/libs/sofia-sip/.update (14166 => 14167)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/libs/sofia-sip/.update 2009-07-09 15:19:27 UTC (rev 14166)
+++ freeswitch/trunk/libs/sofia-sip/.update 2009-07-09 16:00:36 UTC (rev 14167)
</span><span class="lines">@@ -1 +1 @@
</span><del>-Fri Jun 26 14:54:58 CDT 2009
</del><ins>+Thu Jul 9 10:56:15 CDT 2009
</ins></span></pre></div>
<a id="freeswitchtrunklibssofiasiplibsofiasipuantantac"></a>
<div class="modfile"><h4>Modified: freeswitch/trunk/libs/sofia-sip/libsofia-sip-ua/nta/nta.c (14166 => 14167)</h4>
<pre class="diff"><span>
<span class="info">--- freeswitch/trunk/libs/sofia-sip/libsofia-sip-ua/nta/nta.c 2009-07-09 15:19:27 UTC (rev 14166)
+++ freeswitch/trunk/libs/sofia-sip/libsofia-sip-ua/nta/nta.c 2009-07-09 16:00:36 UTC (rev 14167)
</span><span class="lines">@@ -519,14 +519,15 @@
</span><span class="cx"> unsigned orq_destroyed:1;
</span><span class="cx"> unsigned orq_completed:1;
</span><span class="cx"> unsigned orq_delayed:1;
</span><del>- unsigned orq_stripped_uri:1;
</del><span class="cx"> unsigned orq_user_tport:1; /**< Application provided tport - don't retry */
</span><span class="cx"> unsigned orq_try_tcp_instead:1;
</span><span class="cx"> unsigned orq_try_udp_instead:1;
</span><span class="cx"> unsigned orq_reliable:1; /**< Transport is reliable */
</span><del>- unsigned orq_ack_error:1; /**< ACK is sent by NTA */
</del><span class="cx">
</span><ins>+ unsigned orq_forked:1; /**< Tagged fork */
+
</ins><span class="cx"> /* Attributes */
</span><ins>+ unsigned orq_uas:1; /**< Running this transaction as UAS */
</ins><span class="cx"> unsigned orq_user_via:1;
</span><span class="cx"> unsigned orq_stateless:1;
</span><span class="cx"> unsigned orq_pass_100:1;
</span><span class="lines">@@ -701,7 +702,7 @@
</span><span class="cx"> msg_t *msg, sip_t *sip, tport_t *tport,
</span><span class="cx"> char const *to_tag);
</span><span class="cx"> su_inline int incoming_timestamp(nta_incoming_t *, msg_t *, sip_t *);
</span><del>-static void incoming_timer(nta_agent_t *);
</del><ins>+static void _nta_incoming_timer(nta_agent_t *);
</ins><span class="cx">
</span><span class="cx"> static nta_reliable_t *reliable_mreply(nta_incoming_t *,
</span><span class="cx"> nta_prack_f *, nta_reliable_magic_t *,
</span><span class="lines">@@ -736,7 +737,7 @@
</span><span class="cx"> sip_via_t const *v);
</span><span class="cx"> static int outgoing_recv(nta_outgoing_t *orq, int status, msg_t *, sip_t *);
</span><span class="cx"> static void outgoing_default_recv(nta_outgoing_t *, int, msg_t *, sip_t *);
</span><del>-static void outgoing_timer(nta_agent_t *);
</del><ins>+static void _nta_outgoing_timer(nta_agent_t *);
</ins><span class="cx"> static int outgoing_recv_reliable(nta_outgoing_t *orq, msg_t *msg, sip_t *sip);
</span><span class="cx">
</span><span class="cx"> /* Internal message passing */
</span><span class="lines">@@ -1234,8 +1235,8 @@
</span><span class="cx"> agent->sa_millisec = now;
</span><span class="cx"> agent->sa_in_timer = 1;
</span><span class="cx">
</span><del>- outgoing_timer(agent);
- incoming_timer(agent);
</del><ins>+ _nta_outgoing_timer(agent);
+ _nta_incoming_timer(agent);
</ins><span class="cx">
</span><span class="cx"> /* agent->sa_now is used only if sa_millisec != 0 */
</span><span class="cx"> agent->sa_millisec = 0;
</span><span class="lines">@@ -6792,7 +6793,8 @@
</span><span class="cx"> };
</span><span class="cx">
</span><span class="cx"> /** @internal Timer routine for the incoming request. */
</span><del>-static void incoming_timer(nta_agent_t *sa)
</del><ins>+static void
+_nta_incoming_timer(nta_agent_t *sa)
</ins><span class="cx"> {
</span><span class="cx"> uint32_t now = sa->sa_millisec;
</span><span class="cx"> nta_incoming_t *irq, *irq_next;
</span><span class="lines">@@ -7083,6 +7085,7 @@
</span><span class="cx"> static void outgoing_timeout(nta_outgoing_t *orq, uint32_t now);
</span><span class="cx"> static int outgoing_complete(nta_outgoing_t *orq);
</span><span class="cx"> static void outgoing_terminate_invite(nta_outgoing_t *);
</span><ins>+static void outgoing_remove_fork(nta_outgoing_t *orq);
</ins><span class="cx"> static int outgoing_terminate(nta_outgoing_t *orq);
</span><span class="cx"> static size_t outgoing_mass_destroy(nta_agent_t *sa, outgoing_queue_t *q);
</span><span class="cx"> static void outgoing_estimate_delay(nta_outgoing_t *orq, sip_t *sip);
</span><span class="lines">@@ -7360,6 +7363,10 @@
</span><span class="cx"> SU_DEBUG_3(("%s: trying to cancel non-INVITE request\n", __func__));
</span><span class="cx"> return NULL;
</span><span class="cx"> }
</span><ins>+
+ if (orq->orq_forking)
+ orq = orq->orq_forking;
+
</ins><span class="cx"> if (orq->orq_status >= 200
</span><span class="cx"> /* && orq->orq_method != sip_method_invite ... !multicast */) {
</span><span class="cx"> SU_DEBUG_3(("%s: trying to cancel completed request\n", __func__));
</span><span class="lines">@@ -7735,6 +7742,7 @@
</span><span class="cx"> orq->orq_stateless = stateless != 0;
</span><span class="cx"> orq->orq_user_via = user_via != 0 && sip->sip_via;
</span><span class="cx"> orq->orq_100rel = invite_100rel;
</span><ins>+ orq->orq_uas = !stateless && agent->sa_is_a_uas;
</ins><span class="cx">
</span><span class="cx"> if (cc)
</span><span class="cx"> orq->orq_cc = nta_compartment_ref(cc);
</span><span class="lines">@@ -7822,9 +7830,9 @@
</span><span class="cx"> else
</span><span class="cx"> orq->orq_branch = su_sprintf(home, "branch=%s", ack_branch);
</span><span class="cx"> }
</span><del>- else if (!stateless && agent->sa_is_a_uas) {
</del><ins>+ else if (orq->orq_uas) {
</ins><span class="cx"> /*
</span><del>- * ACK redirect further 2XX messages to it.
</del><ins>+ * ACK redirects further 2XX messages to it.
</ins><span class="cx"> *
</span><span class="cx"> * Use orq_branch from INVITE, but put a different branch in topmost Via.
</span><span class="cx"> */
</span><span class="lines">@@ -8414,12 +8422,11 @@
</span><span class="cx"> return;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+ assert(!orq->orq_forked);
+
</ins><span class="cx"> if (outgoing_is_queued(orq))
</span><span class="cx"> outgoing_remove(orq);
</span><span class="cx">
</span><del>- assert(orq->orq_next == NULL);
- assert(*queue->q_tail == NULL);
-
</del><span class="cx"> orq->orq_timeout = set_timeout(orq->orq_agent, queue->q_timeout);
</span><span class="cx">
</span><span class="cx"> orq->orq_queue = queue;
</span><span class="lines">@@ -8525,8 +8532,8 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /** Remove outgoing request from hash tables */
</span><del>-su_inline
-void outgoing_cut_off(nta_outgoing_t *orq)
</del><ins>+su_inline void
+outgoing_cut_off(nta_outgoing_t *orq)
</ins><span class="cx"> {
</span><span class="cx"> nta_agent_t *agent = orq->orq_agent;
</span><span class="cx">
</span><span class="lines">@@ -8539,6 +8546,11 @@
</span><span class="cx"> if (outgoing_is_queued(orq))
</span><span class="cx"> outgoing_remove(orq);
</span><span class="cx">
</span><ins>+#if 0
+ if (orq->orq_forked)
+ outgoing_remove_fork(orq);
+#endif
+
</ins><span class="cx"> outgoing_reset_timer(orq);
</span><span class="cx">
</span><span class="cx"> if (orq->orq_pending) {
</span><span class="lines">@@ -8637,7 +8649,8 @@
</span><span class="cx"> /** @internal Outgoing transaction timer routine.
</span><span class="cx"> *
</span><span class="cx"> */
</span><del>-static void outgoing_timer(nta_agent_t *sa)
</del><ins>+static void
+_nta_outgoing_timer(nta_agent_t *sa)
</ins><span class="cx"> {
</span><span class="cx"> uint32_t now = sa->sa_millisec;
</span><span class="cx"> nta_outgoing_t *orq;
</span><span class="lines">@@ -8742,7 +8755,9 @@
</span><span class="cx"> static
</span><span class="cx"> void outgoing_trying(nta_outgoing_t *orq)
</span><span class="cx"> {
</span><del>- if (orq->orq_method == sip_method_invite)
</del><ins>+ if (orq->orq_forked)
+ ;
+ else if (orq->orq_method == sip_method_invite)
</ins><span class="cx"> outgoing_queue(orq->orq_agent->sa_out.inv_calling, orq);
</span><span class="cx"> else
</span><span class="cx"> outgoing_queue(orq->orq_agent->sa_out.trying, orq);
</span><span class="lines">@@ -8847,8 +8862,14 @@
</span><span class="cx">
</span><span class="cx"> if (orq->orq_stateless)
</span><span class="cx"> return outgoing_terminate(orq);
</span><ins>+
+ if (orq->orq_forked) {
+ outgoing_remove_fork(orq);
+ return outgoing_terminate(orq);
+ }
+
</ins><span class="cx"> if (orq->orq_reliable) {
</span><del>- if (orq->orq_method != sip_method_invite || !orq->orq_agent->sa_is_a_uas)
</del><ins>+ if (orq->orq_method != sip_method_invite || !orq->orq_uas)
</ins><span class="cx"> return outgoing_terminate(orq);
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -8908,7 +8929,7 @@
</span><span class="cx"> "terminate", orq->orq_method_name, orq->orq_cseq->cs_seq,
</span><span class="cx"> orq->orq_tag));
</span><span class="cx">
</span><del>- orq->orq_forking = NULL;
</del><ins>+ orq->orq_forking = NULL, orq->orq_forks = NULL, orq->orq_forked = 0;
</ins><span class="cx">
</span><span class="cx"> if (outgoing_terminate(orq))
</span><span class="cx"> continue;
</span><span class="lines">@@ -8930,6 +8951,25 @@
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+static void
+outgoing_remove_fork(nta_outgoing_t *orq)
+{
+ nta_outgoing_t **slot;
+
+ for (slot = &orq->orq_forking->orq_forks;
+ *slot;
+ slot = &(*slot)->orq_forks) {
+ if (orq == *slot) {
+ *slot = orq->orq_forks;
+ orq->orq_forks = NULL;
+ orq->orq_forking = NULL;
+ orq->orq_forked = 0;
+ }
+ }
+
+ assert(orq == NULL);
+}
+
</ins><span class="cx"> /** Terminate a client transaction. */
</span><span class="cx"> static
</span><span class="cx"> int outgoing_terminate(nta_outgoing_t *orq)
</span><span class="lines">@@ -9031,7 +9071,7 @@
</span><span class="cx"> /* Get original invite when ACKing */
</span><span class="cx"> if (sip->sip_request && method == sip_method_ack && v == NULL)
</span><span class="cx"> method = sip_method_invite, method2 = sip_method_invalid;
</span><del>- else if (sa->sa_is_a_uas && status >= 200 && method == sip_method_invite)
</del><ins>+ else if (sa->sa_is_a_uas && 200 <= status && status < 300 && method == sip_method_invite)
</ins><span class="cx"> method2 = sip_method_ack;
</span><span class="cx"> else
</span><span class="cx"> method2 = method;
</span><span class="lines">@@ -9062,10 +9102,8 @@
</span><span class="cx"> su_strcasecmp(orq->orq_to->a_tag, sip->sip_to->a_tag))
</span><span class="cx"> continue;
</span><span class="cx">
</span><del>- if (orq->orq_method == sip_method_ack) {
- if (orq->orq_ack_error ? status < 300 : status >= 300)
- continue;
- }
</del><ins>+ if (orq->orq_method == sip_method_ack && 300 <= status)
+ continue;
</ins><span class="cx">
</span><span class="cx"> if (v && !su_casematch(orq->orq_branch + strlen("branch="), v->v_branch))
</span><span class="cx"> continue;
</span><span class="lines">@@ -9085,7 +9123,6 @@
</span><span class="cx"> nta_outgoing_t *orq = _orq->orq_forking ? _orq->orq_forking : _orq;
</span><span class="cx"> nta_agent_t *sa = orq->orq_agent;
</span><span class="cx"> int internal = sip == NULL || (sip->sip_flags & NTA_INTERNAL_MSG) != 0;
</span><del>- int uas = sa->sa_is_a_uas;
</del><span class="cx">
</span><span class="cx"> assert(!internal || status >= 300);
</span><span class="cx"> assert(orq == _orq || orq->orq_method == sip_method_invite);
</span><span class="lines">@@ -9126,7 +9163,7 @@
</span><span class="cx"> orq = _orq;
</span><span class="cx">
</span><span class="cx"> if (orq->orq_destroyed && 200 <= status && status < 300) {
</span><del>- if (uas && su_strcasecmp(sip->sip_to->a_tag, orq->orq_tag) != 0) {
</del><ins>+ if (orq->orq_uas && su_strcasecmp(sip->sip_to->a_tag, orq->orq_tag) != 0) {
</ins><span class="cx"> /* Orphan 200 Ok to INVITE. ACK and BYE it */
</span><span class="cx"> SU_DEBUG_5(("nta: Orphan 200 Ok send ACK&BYE\n"));
</span><span class="cx"> return nta_msg_ackbye(sa, msg);
</span><span class="lines">@@ -9134,11 +9171,14 @@
</span><span class="cx"> return -1; /* Proxy statelessly (RFC3261 section 16.11) */
</span><span class="cx"> }
</span><span class="cx">
</span><del>- outgoing_reset_timer(original);
</del><ins>+ outgoing_reset_timer(original); /* Retransmission */
</ins><span class="cx">
</span><span class="cx"> if (status < 200) {
</span><del>- original->orq_status = status;
- orq->orq_status = status;
</del><ins>+ if (original->orq_status < 200)
+ original->orq_status = status;
+ if (orq->orq_status < 200)
+ orq->orq_status = status;
+
</ins><span class="cx"> if (original->orq_queue == sa->sa_out.inv_calling) {
</span><span class="cx"> outgoing_queue(sa->sa_out.inv_proceeding, original);
</span><span class="cx"> }
</span><span class="lines">@@ -9148,9 +9188,7 @@
</span><span class="cx"> outgoing_queue(sa->sa_out.inv_proceeding, original);
</span><span class="cx"> }
</span><span class="cx"> }
</span><del>- }
</del><span class="cx">
</span><del>- if (status < 200) {
</del><span class="cx"> /* Handle 100rel */
</span><span class="cx"> if (sip && sip->sip_rseq) {
</span><span class="cx"> if (outgoing_recv_reliable(orq, msg, sip) < 0) {
</span><span class="lines">@@ -9168,7 +9206,7 @@
</span><span class="cx"> if (outgoing_complete(original))
</span><span class="cx"> return 0;
</span><span class="cx">
</span><del>- if (uas && sip && orq == original) {
</del><ins>+ if (orq->orq_uas && sip && orq == original) {
</ins><span class="cx"> /*
</span><span class="cx"> * We silently discard duplicate final responses to INVITE below
</span><span class="cx"> * with outgoing_duplicate()
</span><span class="lines">@@ -9183,7 +9221,7 @@
</span><span class="cx"> if (status >= 300)
</span><span class="cx"> return outgoing_duplicate(orq, msg, sip);
</span><span class="cx">
</span><del>- if (uas) {
</del><ins>+ if (orq->orq_uas) {
</ins><span class="cx"> if (su_strcasecmp(sip->sip_to->a_tag, orq->orq_tag) == 0)
</span><span class="cx"> /* Catch retransmission */
</span><span class="cx"> return outgoing_duplicate(orq, msg, sip);
</span><span class="lines">@@ -9243,16 +9281,21 @@
</span><span class="cx"> return 0;
</span><span class="cx"> }
</span><span class="cx">
</span><del>- if (status + orq->orq_pass_100 > 100 && !orq->orq_destroyed) {
- if (orq->orq_response)
- msg_destroy(orq->orq_response);
- orq->orq_response = msg;
- /* Call callback */
- orq->orq_callback(orq->orq_magic, orq, sip);
</del><ins>+ if (100 >= status + orq->orq_pass_100) {
+ msg_destroy(msg);
+ return 0;
</ins><span class="cx"> }
</span><del>- else
</del><ins>+
+ if (orq->orq_destroyed) {
</ins><span class="cx"> msg_destroy(msg);
</span><ins>+ return 0;
+ }
</ins><span class="cx">
</span><ins>+ if (orq->orq_response)
+ msg_destroy(orq->orq_response);
+ orq->orq_response = msg;
+ /* Call callback */
+ orq->orq_callback(orq->orq_magic, orq, sip);
</ins><span class="cx"> return 0;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -11233,14 +11276,19 @@
</span><span class="cx"> sip_to_tag(home, to = sip_to_copy(home, orq->orq_to), to_tag);
</span><span class="cx">
</span><span class="cx"> tagged->orq_to = to;
</span><ins>+ tagged->orq_tag = to->a_tag;
</ins><span class="cx"> tagged->orq_tport = tport_ref(orq->orq_tport);
</span><span class="cx"> tagged->orq_request = msg_ref_create(orq->orq_request);
</span><span class="cx"> tagged->orq_response = msg_ref_create(orq->orq_response);
</span><span class="cx"> tagged->orq_cancel = NULL;
</span><del>- tagged->orq_forking = orq;
- tagged->orq_forks = orq->orq_forks;
- orq->orq_forks = tagged;
</del><span class="cx">
</span><ins>+ if ((tagged->orq_uas = orq->orq_uas)) {
+ tagged->orq_forking = orq;
+ tagged->orq_forks = orq->orq_forks;
+ tagged->orq_forked = 1;
+ orq->orq_forks = tagged;
+ }
+
</ins><span class="cx"> tagged->orq_rseq = 0;
</span><span class="cx">
</span><span class="cx"> outgoing_insert(agent, tagged);
</span></span></pre>
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