[asterisk-commits] rmudgett: branch 1.8 r288194 - in /branches/1.8: ./ channels/chan_iax2.c
SVN commits to the Asterisk project
asterisk-commits at lists.digium.com
Tue Sep 21 19:06:25 CDT 2010
Author: rmudgett
Date: Tue Sep 21 19:06:21 2010
New Revision: 288194
URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=288194
Log:
Merged revisions 288193 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.6.2
................
r288193 | rmudgett | 2010-09-21 19:03:37 -0500 (Tue, 21 Sep 2010) | 33 lines
Merged revisions 288192 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r288192 | rmudgett | 2010-09-21 18:55:58 -0500 (Tue, 21 Sep 2010) | 26 lines
In chan_iax2.c:schedule_delivery() calls ast_bridged_channel() on an unlocked channel.
Near the beginning of schedule_delivery(), ast_bridged_channel() is called
on iaxs[fr->callno]->owner. However, the channel is not locked, which can
result in ast_bridged_channel() crashing should owner->tech change to a
technology that doesn't implement bridged_channel.
I also fixed the other calls to ast_bridged_channel() in chan_iax2.c since
the owner lock was not held there either.
Converted the existing channel deadlock avoidance to use
iax2_lock_owner(). Using the new function simplified some awkward code.
In the process of fixing the locking on ast_bridged_channel(), I also
found a memory leak in socket_process() for v1.6.2 and v1.8. The local
struct variable ies.vars is not freed on early/abnormal function exits.
(closes issue #17919)
Reported by: rain
Patches:
issue17919_v1.4.patch uploaded by rmudgett (license 664)
issue17919_w_leak_v1.6.2.patch uploaded by rmudgett (license 664)
issue17919_w_leak_v1.8.patch uploaded by rmudgett (license 664)
Review: https://reviewboard.asterisk.org/r/926/
........
................
Modified:
branches/1.8/ (props changed)
branches/1.8/channels/chan_iax2.c
Propchange: branches/1.8/
------------------------------------------------------------------------------
Binary property 'branch-1.6.2-merged' - no diff available.
Modified: branches/1.8/channels/chan_iax2.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.8/channels/chan_iax2.c?view=diff&rev=288194&r1=288193&r2=288194
==============================================================================
--- branches/1.8/channels/chan_iax2.c (original)
+++ branches/1.8/channels/chan_iax2.c Tue Sep 21 19:06:21 2010
@@ -1237,6 +1237,39 @@
.func_channel_read = acf_channel_read,
};
+/*!
+ * \internal
+ * \brief Obtain the owner channel lock if the owner exists.
+ *
+ * \param callno IAX2 call id.
+ *
+ * \note Assumes the iaxsl[callno] lock is already obtained.
+ *
+ * \note
+ * IMPORTANT NOTE!!! Any time this function is used, even if
+ * iaxs[callno] was valid before calling it, it may no longer be
+ * valid after calling it. This function may unlock and lock
+ * the mutex associated with this callno, meaning that another
+ * thread may grab it and destroy the call.
+ *
+ * \return Nothing
+ */
+static void iax2_lock_owner(int callno)
+{
+ for (;;) {
+ if (!iaxs[callno] || !iaxs[callno]->owner) {
+ /* There is no owner lock to get. */
+ break;
+ }
+ if (!ast_channel_trylock(iaxs[callno]->owner)) {
+ /* We got the lock */
+ break;
+ }
+ /* Avoid deadlock by pausing and trying again */
+ DEADLOCK_AVOIDANCE(&iaxsl[callno]);
+ }
+}
+
static void mwi_event_cb(const struct ast_event *event, void *userdata)
{
/* The MWI subscriptions exist just so the core knows we care about those
@@ -2890,18 +2923,10 @@
*/
static int iax2_queue_frame(int callno, struct ast_frame *f)
{
- for (;;) {
- if (iaxs[callno] && iaxs[callno]->owner) {
- if (ast_channel_trylock(iaxs[callno]->owner)) {
- /* Avoid deadlock by pausing and trying again */
- DEADLOCK_AVOIDANCE(&iaxsl[callno]);
- } else {
- ast_queue_frame(iaxs[callno]->owner, f);
- ast_channel_unlock(iaxs[callno]->owner);
- break;
- }
- } else
- break;
+ iax2_lock_owner(callno);
+ if (iaxs[callno] && iaxs[callno]->owner) {
+ ast_queue_frame(iaxs[callno]->owner, f);
+ ast_channel_unlock(iaxs[callno]->owner);
}
return 0;
}
@@ -2921,18 +2946,10 @@
*/
static int iax2_queue_hangup(int callno)
{
- for (;;) {
- if (iaxs[callno] && iaxs[callno]->owner) {
- if (ast_channel_trylock(iaxs[callno]->owner)) {
- /* Avoid deadlock by pausing and trying again */
- DEADLOCK_AVOIDANCE(&iaxsl[callno]);
- } else {
- ast_queue_hangup(iaxs[callno]->owner);
- ast_channel_unlock(iaxs[callno]->owner);
- break;
- }
- } else
- break;
+ iax2_lock_owner(callno);
+ if (iaxs[callno] && iaxs[callno]->owner) {
+ ast_queue_hangup(iaxs[callno]->owner);
+ ast_channel_unlock(iaxs[callno]->owner);
}
return 0;
}
@@ -2953,18 +2970,10 @@
static int iax2_queue_control_data(int callno,
enum ast_control_frame_type control, const void *data, size_t datalen)
{
- for (;;) {
- if (iaxs[callno] && iaxs[callno]->owner) {
- if (ast_channel_trylock(iaxs[callno]->owner)) {
- /* Avoid deadlock by pausing and trying again */
- DEADLOCK_AVOIDANCE(&iaxsl[callno]);
- } else {
- ast_queue_control_data(iaxs[callno]->owner, control, data, datalen);
- ast_channel_unlock(iaxs[callno]->owner);
- break;
- }
- } else
- break;
+ iax2_lock_owner(callno);
+ if (iaxs[callno] && iaxs[callno]->owner) {
+ ast_queue_control_data(iaxs[callno]->owner, control, data, datalen);
+ ast_channel_unlock(iaxs[callno]->owner);
}
return 0;
}
@@ -4143,6 +4152,12 @@
return -1;
}
+ iax2_lock_owner(fr->callno);
+ if (!iaxs[fr->callno]) {
+ /* The call dissappeared so discard this frame that we could not send. */
+ iax2_frame_free(fr);
+ return -1;
+ }
if ((owner = iaxs[fr->callno]->owner))
bridge = ast_bridged_channel(owner);
@@ -4150,6 +4165,8 @@
* a channel that can accept jitter, then flush and suspend the jb, and send this frame straight through */
if ( (!ast_test_flag64(iaxs[fr->callno], IAX_FORCEJITTERBUF)) && owner && bridge && (bridge->tech->properties & AST_CHAN_TP_WANTSJITTER) ) {
jb_frame frame;
+
+ ast_channel_unlock(owner);
/* deliver any frames in the jb */
while (jb_getall(iaxs[fr->callno]->jb, &frame) == JB_OK) {
@@ -4168,6 +4185,9 @@
*tsout = fr->ts;
__do_deliver(fr);
return -1;
+ }
+ if (owner) {
+ ast_channel_unlock(owner);
}
/* insert into jitterbuffer */
@@ -9708,27 +9728,13 @@
static void set_hangup_source_and_cause(int callno, unsigned char causecode)
{
- int locked = 0;
- struct ast_channel *owner=NULL;
-
- do {
- if (ast_channel_trylock(iaxs[callno]->owner)) {
- DEADLOCK_AVOIDANCE(&iaxsl[callno]);
- } else {
- locked = 1;
- owner = iaxs[callno]->owner;
- }
- }
- while (!locked && iaxs[callno] && iaxs[callno]->owner);
-
+ iax2_lock_owner(callno);
if (iaxs[callno] && iaxs[callno]->owner) {
if (causecode) {
iaxs[callno]->owner->hangupcause = causecode;
}
ast_set_hangupsource(iaxs[callno]->owner, iaxs[callno]->owner->name, 0);
- ast_channel_unlock(owner);
- } else if(locked) {
- ast_channel_unlock(owner);
+ ast_channel_unlock(iaxs[callno]->owner);
}
}
@@ -9845,6 +9851,7 @@
if (f.frametype == AST_FRAME_IAX) {
if (iax_parse_ies(&ies, thread->buf + sizeof(struct ast_iax2_full_hdr), f.datalen)) {
ast_log(LOG_WARNING, "Undecodable frame received from '%s'\n", ast_inet_ntoa(sin.sin_addr));
+ ast_variables_destroy(ies.vars);
return 1;
}
f.data.ptr = NULL;
@@ -9864,6 +9871,7 @@
if (!dcallno && iax2_allow_new(f.frametype, f.subclass.integer, 1)) {
/* only set NEW_ALLOW if calltoken checks out */
if (handle_call_token(fh, &ies, &sin, fd)) {
+ ast_variables_destroy(ies.vars);
return 1;
}
@@ -9881,6 +9889,7 @@
/* Don't know anything about it yet */
f.frametype = AST_FRAME_NULL;
f.subclass.integer = 0;
+ memset(&ies, 0, sizeof(ies));
}
if (!fr->callno) {
@@ -9904,6 +9913,7 @@
} else if (f.frametype == AST_FRAME_IAX && (f.subclass.integer == IAX_COMMAND_REGREQ || f.subclass.integer == IAX_COMMAND_REGREL)) {
send_apathetic_reply(1, ntohs(fh->scallno), &sin, IAX_COMMAND_REGREJ, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
}
+ ast_variables_destroy(ies.vars);
return 1;
}
}
@@ -9926,11 +9936,13 @@
}
if (fr->callno > 0)
ast_mutex_unlock(&iaxsl[fr->callno]);
+ ast_variables_destroy(ies.vars);
return 1;
}
if (ast_test_flag64(iaxs[fr->callno], IAX_ENCRYPTED) && !decrypted) {
if (decrypt_frame(fr->callno, fh, &f, &res)) {
ast_log(LOG_NOTICE, "Packet Decrypt Failed!\n");
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -10020,6 +10032,7 @@
/* Send a VNAK requesting retransmission */
iax2_vnak(fr->callno);
}
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -10083,6 +10096,7 @@
iaxs[fr->callno]->rseqno = fr->iseqno;
else {
/* Stop processing now */
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -10095,6 +10109,7 @@
((f.subclass.integer != IAX_COMMAND_TXACC) &&
(f.subclass.integer != IAX_COMMAND_TXCNT)))) {
/* Only messages we accept from a transfer host are TXACC and TXCNT */
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -10108,6 +10123,7 @@
if (ast_test_flag64(iaxs[fr->callno], IAX_DELAYPBXSTART)) {
ast_clear_flag64(iaxs[fr->callno], IAX_DELAYPBXSTART);
if (!ast_iax2_new(fr->callno, AST_STATE_RING, iaxs[fr->callno]->chosenformat, NULL)) {
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -10117,6 +10133,13 @@
struct ast_datastore *variablestore = NULL;
struct ast_variable *var, *prev = NULL;
AST_LIST_HEAD(, ast_var_t) *varlist;
+
+ iax2_lock_owner(fr->callno);
+ if (!iaxs[fr->callno]) {
+ ast_variables_destroy(ies.vars);
+ ast_mutex_unlock(&iaxsl[fr->callno]);
+ return 1;
+ }
if ((c = iaxs[fr->callno]->owner)) {
varlist = ast_calloc(1, sizeof(*varlist));
variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
@@ -10153,6 +10176,7 @@
ast_free(varlist);
}
}
+ ast_channel_unlock(c);
} else {
/* No channel yet, so transfer the variables directly over to the pvt,
* for later inheritance. */
@@ -10182,14 +10206,11 @@
iaxs[fr->callno]->voiceformat = f.subclass.codec;
ast_debug(1, "Ooh, voice format changed to '%s'\n", ast_getformatname(f.subclass.codec));
if (iaxs[fr->callno]->owner) {
- format_t orignative;
-retryowner:
- if (ast_channel_trylock(iaxs[fr->callno]->owner)) {
- DEADLOCK_AVOIDANCE(&iaxsl[fr->callno]);
- if (iaxs[fr->callno] && iaxs[fr->callno]->owner) goto retryowner;
- }
+ iax2_lock_owner(fr->callno);
if (iaxs[fr->callno]) {
if (iaxs[fr->callno]->owner) {
+ format_t orignative;
+
orignative = iaxs[fr->callno]->owner->nativeformats;
iaxs[fr->callno]->owner->nativeformats = f.subclass.codec;
if (iaxs[fr->callno]->owner->readformat)
@@ -10261,22 +10282,32 @@
ast_set_flag64(iaxs[fr->callno], IAX_QUELCH);
if (ies.musiconhold) {
- if (iaxs[fr->callno]->owner && ast_bridged_channel(iaxs[fr->callno]->owner)) {
+ iax2_lock_owner(fr->callno);
+ if (!iaxs[fr->callno] || !iaxs[fr->callno]->owner) {
+ break;
+ }
+ if (ast_bridged_channel(iaxs[fr->callno]->owner)) {
const char *moh_suggest = iaxs[fr->callno]->mohsuggest;
+
+ /*
+ * We already hold the owner lock so we do not
+ * need to check iaxs[fr->callno] after it returns.
+ */
iax2_queue_control_data(fr->callno, AST_CONTROL_HOLD,
S_OR(moh_suggest, NULL),
!ast_strlen_zero(moh_suggest) ? strlen(moh_suggest) + 1 : 0);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
}
+ ast_channel_unlock(iaxs[fr->callno]->owner);
}
}
break;
case IAX_COMMAND_UNQUELCH:
if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
- /* Generate Manager Unhold event, if necessary*/
+ iax2_lock_owner(fr->callno);
+ if (!iaxs[fr->callno]) {
+ break;
+ }
+ /* Generate Manager Unhold event, if necessary */
if (iaxs[fr->callno]->owner && ast_test_flag64(iaxs[fr->callno], IAX_QUELCH)) {
ast_manager_event(iaxs[fr->callno]->owner, EVENT_FLAG_CALL, "Hold",
"Status: Off\r\n"
@@ -10287,13 +10318,17 @@
}
ast_clear_flag64(iaxs[fr->callno], IAX_QUELCH);
- if (iaxs[fr->callno]->owner && ast_bridged_channel(iaxs[fr->callno]->owner)) {
+ if (!iaxs[fr->callno]->owner) {
+ break;
+ }
+ if (ast_bridged_channel(iaxs[fr->callno]->owner)) {
+ /*
+ * We already hold the owner lock so we do not
+ * need to check iaxs[fr->callno] after it returns.
+ */
iax2_queue_control_data(fr->callno, AST_CONTROL_UNHOLD, NULL, 0);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
}
+ ast_channel_unlock(iaxs[fr->callno]->owner);
}
break;
case IAX_COMMAND_TXACC:
@@ -10320,8 +10355,7 @@
check_provisioning(&sin, fd, ies.serviceident, ies.provver);
ast_mutex_lock(&iaxsl[fr->callno]);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
}
/* If we're in trunk mode, do it now, and update the trunk number in our frame before continuing */
@@ -10358,8 +10392,7 @@
ast_mutex_lock(&iaxsl[fr->callno]);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
} else
exists = 0;
@@ -10372,8 +10405,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if (authdebug)
ast_log(LOG_NOTICE, "Rejected connect attempt from %s, request '%s@%s' does not exist\n", ast_inet_ntoa(sin.sin_addr), iaxs[fr->callno]->exten, iaxs[fr->callno]->context);
@@ -10419,8 +10451,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if (authdebug) {
char tmp[256], tmp2[256], tmp3[256];
@@ -10473,8 +10504,7 @@
ast_log(LOG_ERROR, "No best format in '%s'???\n", ast_getformatname_multiple(tmp, sizeof(tmp), iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability));
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if (authdebug) {
ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested/capability '%s'/'%s' incompatible with our capability '%s'.\n",
@@ -10531,10 +10561,6 @@
iaxs[fr->callno]->encmethods = 0;
if (!authenticate_request(fr->callno) && iaxs[fr->callno])
ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_AUTHENTICATED);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
break;
case IAX_COMMAND_DPREQ:
/* Request status in the dialplan */
@@ -10556,8 +10582,7 @@
if (iaxs[fr->callno]->owner) {
set_hangup_source_and_cause(fr->callno, ies.causecode);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
}
@@ -10570,8 +10595,7 @@
if (iaxs[fr->callno]->owner) {
set_hangup_source_and_cause(fr->callno, ies.causecode);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
}
@@ -10593,39 +10617,53 @@
case IAX_COMMAND_TRANSFER:
{
struct ast_channel *bridged_chan;
-
- if (iaxs[fr->callno]->owner && (bridged_chan = ast_bridged_channel(iaxs[fr->callno]->owner)) && ies.called_number) {
+ struct ast_channel *owner;
+
+ iax2_lock_owner(fr->callno);
+ if (!iaxs[fr->callno]) {
+ /* Initiating call went away before we could transfer. */
+ break;
+ }
+ owner = iaxs[fr->callno]->owner;
+ bridged_chan = owner ? ast_bridged_channel(owner) : NULL;
+ if (bridged_chan && ies.called_number) {
+ ast_mutex_unlock(&iaxsl[fr->callno]);
+
/* Set BLINDTRANSFER channel variables */
-
- ast_mutex_unlock(&iaxsl[fr->callno]);
- pbx_builtin_setvar_helper(iaxs[fr->callno]->owner, "BLINDTRANSFER", bridged_chan->name);
- ast_mutex_lock(&iaxsl[fr->callno]);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
-
- pbx_builtin_setvar_helper(bridged_chan, "BLINDTRANSFER", iaxs[fr->callno]->owner->name);
+ pbx_builtin_setvar_helper(owner, "BLINDTRANSFER", bridged_chan->name);
+ pbx_builtin_setvar_helper(bridged_chan, "BLINDTRANSFER", owner->name);
+
if (ast_parking_ext_valid(ies.called_number, c, iaxs[fr->callno]->context)) {
- struct ast_channel *saved_channel = iaxs[fr->callno]->owner;
- ast_mutex_unlock(&iaxsl[fr->callno]);
- if (iax_park(bridged_chan, saved_channel, ies.called_number)) {
- ast_log(LOG_WARNING, "Failed to park call on '%s'\n", bridged_chan->name);
- } else {
- ast_debug(1, "Parked call on '%s'\n", ast_bridged_channel(iaxs[fr->callno]->owner)->name);
+ ast_debug(1, "Parking call '%s'\n", bridged_chan->name);
+ if (iax_park(bridged_chan, owner, ies.called_number)) {
+ ast_log(LOG_WARNING, "Failed to park call '%s'\n",
+ bridged_chan->name);
}
ast_mutex_lock(&iaxsl[fr->callno]);
} else {
- if (ast_async_goto(bridged_chan, iaxs[fr->callno]->context, ies.called_number, 1))
- ast_log(LOG_WARNING, "Async goto of '%s' to '%s@%s' failed\n", bridged_chan->name,
- ies.called_number, iaxs[fr->callno]->context);
- else {
- ast_debug(1, "Async goto of '%s' to '%s@%s' started\n", bridged_chan->name,
- ies.called_number, iaxs[fr->callno]->context);
+ ast_mutex_lock(&iaxsl[fr->callno]);
+
+ if (iaxs[fr->callno]) {
+ if (ast_async_goto(bridged_chan, iaxs[fr->callno]->context,
+ ies.called_number, 1)) {
+ ast_log(LOG_WARNING,
+ "Async goto of '%s' to '%s@%s' failed\n",
+ bridged_chan->name, ies.called_number,
+ iaxs[fr->callno]->context);
+ } else {
+ ast_debug(1, "Async goto of '%s' to '%s@%s' started\n",
+ bridged_chan->name, ies.called_number,
+ iaxs[fr->callno]->context);
+ }
+ } else {
+ /* Initiating call went away before we could transfer. */
}
}
} else {
ast_debug(1, "Async goto not applicable on call %d\n", fr->callno);
+ }
+ if (owner) {
+ ast_channel_unlock(owner);
}
break;
@@ -10655,8 +10693,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if (authdebug) {
char tmp1[256], tmp2[256];
@@ -10667,24 +10704,18 @@
}
} else {
ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
- if (iaxs[fr->callno]->owner) {
+ iax2_lock_owner(fr->callno);
+ if (iaxs[fr->callno] && iaxs[fr->callno]->owner) {
/* Switch us to use a compatible format */
iaxs[fr->callno]->owner->nativeformats = iaxs[fr->callno]->peerformat;
ast_verb(3, "Format for call is %s\n", ast_getformatname(iaxs[fr->callno]->owner->nativeformats));
-retryowner2:
- if (ast_channel_trylock(iaxs[fr->callno]->owner)) {
- DEADLOCK_AVOIDANCE(&iaxsl[fr->callno]);
- if (iaxs[fr->callno] && iaxs[fr->callno]->owner) goto retryowner2;
- }
-
- if (iaxs[fr->callno] && iaxs[fr->callno]->owner) {
- /* Setup read/write formats properly. */
- if (iaxs[fr->callno]->owner->writeformat)
- ast_set_write_format(iaxs[fr->callno]->owner, iaxs[fr->callno]->owner->writeformat);
- if (iaxs[fr->callno]->owner->readformat)
- ast_set_read_format(iaxs[fr->callno]->owner, iaxs[fr->callno]->owner->readformat);
- ast_channel_unlock(iaxs[fr->callno]->owner);
- }
+
+ /* Setup read/write formats properly. */
+ if (iaxs[fr->callno]->owner->writeformat)
+ ast_set_write_format(iaxs[fr->callno]->owner, iaxs[fr->callno]->owner->writeformat);
+ if (iaxs[fr->callno]->owner->readformat)
+ ast_set_read_format(iaxs[fr->callno]->owner, iaxs[fr->callno]->owner->readformat);
+ ast_channel_unlock(iaxs[fr->callno]->owner);
}
}
if (iaxs[fr->callno]) {
@@ -10698,10 +10729,6 @@
case IAX_COMMAND_POKE:
/* Send back a pong packet with the original timestamp */
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_PONG, fr->ts, NULL, 0, -1);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
break;
case IAX_COMMAND_PING:
{
@@ -10801,10 +10828,6 @@
ies.username ? ies.username : "<unknown>", ast_inet_ntoa(iaxs[fr->callno]->addr.sin_addr));
iax2_queue_frame(fr->callno, &hangup_fr);
}
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
break;
case IAX_COMMAND_AUTHREP:
/* For security, always ack immediately */
@@ -10835,8 +10858,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
} else {
/* Select an appropriate format */
@@ -10894,8 +10916,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
} else {
/* Pick one... */
@@ -10948,8 +10969,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
}
}
@@ -11042,8 +11062,7 @@
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
} else {
char tmp[256];
@@ -11111,16 +11130,14 @@
send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
if (register_verify(fr->callno, &sin, &ies)) {
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
/* Send delayed failure */
auth_fail(fr->callno, IAX_COMMAND_REGREJ);
break;
}
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if ((ast_strlen_zero(iaxs[fr->callno]->secret) && ast_strlen_zero(iaxs[fr->callno]->inkeys)) ||
ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_AUTHENTICATED)) {
@@ -11130,25 +11147,16 @@
if (update_registry(&sin, fr->callno, ies.devicetype, fd, ies.refresh))
ast_log(LOG_WARNING, "Registry error\n");
if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
+ break;
}
if (ies.provverpres && ies.serviceident && sin.sin_addr.s_addr) {
ast_mutex_unlock(&iaxsl[fr->callno]);
check_provisioning(&sin, fd, ies.serviceident, ies.provver);
ast_mutex_lock(&iaxsl[fr->callno]);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
}
break;
}
registry_authrequest(fr->callno);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
break;
case IAX_COMMAND_REGACK:
if (iax2_ack_registry(&ies, &sin, fr->callno))
@@ -11176,10 +11184,6 @@
iax_ie_append_str(&ied0, IAX_IE_CAUSE, "No authority found");
iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_FACILITY_NOT_SUBSCRIBED);
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
}
break;
case IAX_COMMAND_TXREJ:
@@ -11301,10 +11305,6 @@
send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_FWDATA, 0, ied0.buf, ied0.pos, -1);
else
send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_FWDATA, 0, ied0.buf, ied0.pos, -1);
- if (!iaxs[fr->callno]) {
- ast_mutex_unlock(&iaxsl[fr->callno]);
- return 1;
- }
break;
case IAX_COMMAND_CALLTOKEN:
{
@@ -11350,6 +11350,7 @@
else {
ast_log(LOG_WARNING, "Received mini frame before first full video frame\n");
iax2_vnak(fr->callno);
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -11372,12 +11373,14 @@
else {
ast_debug(1, "Received mini frame before first full voice frame\n");
iax2_vnak(fr->callno);
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
f.datalen = res - sizeof(struct ast_iax2_mini_hdr);
if (f.datalen < 0) {
ast_log(LOG_WARNING, "Datalen < 0?\n");
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -11395,6 +11398,7 @@
}
/* Don't pass any packets until we're started */
if (!ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -11403,6 +11407,7 @@
struct ast_party_connected_line connected;
if (!ast_test_flag64(iaxs[fr->callno], IAX_RECVCONNECTEDLINE)) {
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
@@ -11465,6 +11470,7 @@
}
/* Always run again */
+ ast_variables_destroy(ies.vars);
ast_mutex_unlock(&iaxsl[fr->callno]);
return 1;
}
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