[svn-commits] rmudgett: trunk r210640 - in /trunk: ./ channels/sig_pri.c
SVN commits to the Digium repositories
svn-commits at lists.digium.com
Wed Aug 5 14:40:07 CDT 2009
Author: rmudgett
Date: Wed Aug 5 14:40:03 2009
New Revision: 210640
URL: http://svn.asterisk.org/svn-view/asterisk?view=rev&rev=210640
Log:
Merged revisions 210575 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r210575 | rmudgett | 2009-08-05 14:18:56 -0500 (Wed, 05 Aug 2009) | 14 lines
Dialplan starts execution before the channel setup is complete.
* Issue 15655: For the case where dialing is complete for an incoming
call, dahdi_new() was asked to start the PBX and then the code set more
channel variables. If the dialplan hungup before these channel variables
got set, asterisk would likely crash.
* Fixed potential for overlap incoming call to erroneously set channel
variables as global dialplan variables if the ast_channel structure failed
to get allocated.
* Added missing set of CALLINGSUBADDR in the dialing is complete case.
(closes issue #15655)
Reported by: alecdavis
........
Modified:
trunk/ (props changed)
trunk/channels/sig_pri.c
Propchange: trunk/
------------------------------------------------------------------------------
Binary property 'branch-1.4-merged' - no diff available.
Modified: trunk/channels/sig_pri.c
URL: http://svn.asterisk.org/svn-view/asterisk/trunk/channels/sig_pri.c?view=diff&rev=210640&r1=210639&r2=210640
==============================================================================
--- trunk/channels/sig_pri.c (original)
+++ trunk/channels/sig_pri.c Wed Aug 5 14:40:03 2009
@@ -1227,42 +1227,37 @@
* so other threads can send D channel messages.
*/
ast_mutex_unlock(&pri->lock);
-
c = sig_pri_new_ast_channel(pri->pvts[chanpos], AST_STATE_RESERVED, 0, (e->ring.layer1 = PRI_LAYER_1_ALAW) ? SIG_PRI_ALAW : SIG_PRI_ULAW, e->ring.ctype, pri->pvts[chanpos]->exten, NULL);
-
- sig_pri_unlock_private(pri->pvts[chanpos]);
-
- if (!ast_strlen_zero(e->ring.callingsubaddr)) {
- pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr);
+ ast_mutex_lock(&pri->lock);
+ if (c) {
+ if (!ast_strlen_zero(e->ring.callingsubaddr)) {
+ pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr);
+ }
+ if (e->ring.ani2 >= 0) {
+ snprintf(ani2str, sizeof(ani2str), "%d", e->ring.ani2);
+ pbx_builtin_setvar_helper(c, "ANI2", ani2str);
+ }
+
+#ifdef SUPPORT_USERUSER
+ if (!ast_strlen_zero(e->ring.useruserinfo)) {
+ pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo);
+ }
+#endif
+
+ snprintf(calledtonstr, sizeof(calledtonstr), "%d", e->ring.calledplan);
+ pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr);
+ if (e->ring.redirectingreason >= 0)
+ pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason));
+#if defined(HAVE_PRI_REVERSE_CHARGE)
+ pri->pvts[chanpos]->reverse_charging_indication = e->ring.reversecharge;
+#endif
}
- if (e->ring.ani2 >= 0) {
- snprintf(ani2str, sizeof(ani2str), "%d", e->ring.ani2);
- pbx_builtin_setvar_helper(c, "ANI2", ani2str);
- }
-
-#ifdef SUPPORT_USERUSER
- if (!ast_strlen_zero(e->ring.useruserinfo)) {
- pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo);
- }
-#endif
-
- snprintf(calledtonstr, sizeof(calledtonstr), "%d", e->ring.calledplan);
- pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr);
- if (e->ring.redirectingreason >= 0)
- pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason));
-#if defined(HAVE_PRI_REVERSE_CHARGE)
- pri->pvts[chanpos]->reverse_charging_indication = e->ring.reversecharge;
-#endif
-
- sig_pri_lock_private(pri->pvts[chanpos]);
- ast_mutex_lock(&pri->lock);
-
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (c && !ast_pthread_create(&threadid, &attr, pri_ss_thread, pri->pvts[chanpos])) {
ast_verb(3, "Accepting overlap call from '%s' to '%s' on channel %d/%d, span %d\n",
- plancallingnum, S_OR(pri->pvts[chanpos]->exten, "<unspecified>"),
- pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
+ plancallingnum, S_OR(pri->pvts[chanpos]->exten, "<unspecified>"),
+ pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
} else {
ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
@@ -1280,11 +1275,20 @@
* so other threads can send D channel messages.
*/
ast_mutex_unlock(&pri->lock);
- c = sig_pri_new_ast_channel(pri->pvts[chanpos], AST_STATE_RING, 1, (e->ring.layer1 == PRI_LAYER_1_ALAW) ? SIG_PRI_ALAW : SIG_PRI_ULAW, e->ring.ctype, pri->pvts[chanpos]->exten, NULL);
-
+ c = sig_pri_new_ast_channel(pri->pvts[chanpos], AST_STATE_RING, 0, (e->ring.layer1 == PRI_LAYER_1_ALAW) ? SIG_PRI_ALAW : SIG_PRI_ULAW, e->ring.ctype, pri->pvts[chanpos]->exten, NULL);
+ ast_mutex_lock(&pri->lock);
if (c) {
- sig_pri_unlock_private(pri->pvts[chanpos]);
-
+ /*
+ * It is reasonably safe to set the following
+ * channel variables while the PRI and DAHDI private
+ * structures are locked. The PBX has not been
+ * started yet and it is unlikely that any other task
+ * will do anything with the channel we have just
+ * created.
+ */
+ if (!ast_strlen_zero(e->ring.callingsubaddr)) {
+ pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr);
+ }
if (e->ring.ani2 >= 0) {
snprintf(ani2str, sizeof(ani2str), "%d", e->ring.ani2);
pbx_builtin_setvar_helper(c, "ANI2", ani2str);
@@ -1304,22 +1308,21 @@
snprintf(calledtonstr, sizeof(calledtonstr), "%d", e->ring.calledplan);
pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr);
-
- sig_pri_lock_private(pri->pvts[chanpos]);
- ast_mutex_lock(&pri->lock);
-
+ }
+ if (c && !ast_pbx_start(c)) {
ast_verb(3, "Accepting call from '%s' to '%s' on channel %d/%d, span %d\n",
plancallingnum, pri->pvts[chanpos]->exten,
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
sig_pri_set_echocanceller(pri->pvts[chanpos], 1);
} else {
-
- ast_mutex_lock(&pri->lock);
-
ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
- pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION);
- pri->pvts[chanpos]->call = NULL;
+ if (c) {
+ ast_hangup(c);
+ } else {
+ pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION);
+ pri->pvts[chanpos]->call = NULL;
+ }
}
}
} else {
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