36da6b6286
https://origsvn.digium.com/svn/asterisk/branches/1.8 ................ r306127 | twilson | 2011-02-03 13:03:26 -0800 (Thu, 03 Feb 2011) | 23 lines Merged revisions 306126 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.6.2 ................ r306126 | twilson | 2011-02-03 12:56:00 -0800 (Thu, 03 Feb 2011) | 16 lines Merged revisions 306119 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r306119 | twilson | 2011-02-03 12:36:34 -0800 (Thu, 03 Feb 2011) | 9 lines Set hangup cause in local_hangup When a call involves a local channel (like SIP -> Local -> SIP), the hangup cause was not being set. This resulted in SIP channels sometimes getting a 503 error instead of a 486 when the far side sent a busy. In Asterisk 1.8+ this also can cause issues with CCSS that involve a local channel. This patch sets the hangupcause for one side of the local channel to the other in local_hangup for outbound calls. ........ ................ ................ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@306128 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1261 lines
36 KiB
C
1261 lines
36 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \brief Local Proxy Channel
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*
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* \ingroup channel_drivers
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <fcntl.h>
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#include <sys/signal.h>
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#include "asterisk/lock.h"
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#include "asterisk/channel.h"
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#include "asterisk/config.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/sched.h"
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#include "asterisk/io.h"
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#include "asterisk/acl.h"
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#include "asterisk/callerid.h"
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#include "asterisk/file.h"
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#include "asterisk/cli.h"
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#include "asterisk/app.h"
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#include "asterisk/musiconhold.h"
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#include "asterisk/manager.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/devicestate.h"
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#include "asterisk/astobj2.h"
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/*** DOCUMENTATION
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<manager name="LocalOptimizeAway" language="en_US">
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<synopsis>
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Optimize away a local channel when possible.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Channel" required="true">
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<para>The channel name to optimize away.</para>
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</parameter>
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</syntax>
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<description>
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<para>A local channel created with "/n" will not automatically optimize away.
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Calling this command on the local channel will clear that flag and allow
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it to optimize away if it's bridged or when it becomes bridged.</para>
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</description>
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</manager>
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***/
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static const char tdesc[] = "Local Proxy Channel Driver";
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#define IS_OUTBOUND(a,b) (a == b->chan ? 1 : 0)
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/* right now we are treating the locals astobj2 container as a
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* list. If there is ever a reason to make this more efficient
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* increasing the bucket size would help. */
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static const int BUCKET_SIZE = 1;
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static struct ao2_container *locals;
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static struct ast_jb_conf g_jb_conf = {
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.flags = 0,
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.max_size = -1,
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.resync_threshold = -1,
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.impl = "",
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.target_extra = -1,
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};
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static struct ast_channel *local_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, void *data, int *cause);
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static int local_digit_begin(struct ast_channel *ast, char digit);
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static int local_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
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static int local_call(struct ast_channel *ast, char *dest, int timeout);
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static int local_hangup(struct ast_channel *ast);
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static int local_answer(struct ast_channel *ast);
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static struct ast_frame *local_read(struct ast_channel *ast);
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static int local_write(struct ast_channel *ast, struct ast_frame *f);
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static int local_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
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static int local_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
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static int local_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
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static int local_sendtext(struct ast_channel *ast, const char *text);
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static int local_devicestate(void *data);
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static struct ast_channel *local_bridgedchannel(struct ast_channel *chan, struct ast_channel *bridge);
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static int local_queryoption(struct ast_channel *ast, int option, void *data, int *datalen);
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static int local_setoption(struct ast_channel *chan, int option, void *data, int datalen);
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/* PBX interface structure for channel registration */
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static struct ast_channel_tech local_tech = {
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.type = "Local",
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.description = tdesc,
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.requester = local_request,
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.send_digit_begin = local_digit_begin,
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.send_digit_end = local_digit_end,
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.call = local_call,
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.hangup = local_hangup,
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.answer = local_answer,
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.read = local_read,
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.write = local_write,
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.write_video = local_write,
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.exception = local_read,
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.indicate = local_indicate,
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.fixup = local_fixup,
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.send_html = local_sendhtml,
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.send_text = local_sendtext,
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.devicestate = local_devicestate,
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.bridged_channel = local_bridgedchannel,
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.queryoption = local_queryoption,
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.setoption = local_setoption,
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};
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/*! \brief the local pvt structure for all channels
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The local channel pvt has two ast_chan objects - the "owner" and the "next channel", the outbound channel
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ast_chan owner -> local_pvt -> ast_chan chan -> yet-another-pvt-depending-on-channel-type
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*/
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struct local_pvt {
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unsigned int flags; /*!< Private flags */
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char context[AST_MAX_CONTEXT]; /*!< Context to call */
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char exten[AST_MAX_EXTENSION]; /*!< Extension to call */
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struct ast_format_cap *reqcap; /*!< Requested format capabilities */
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struct ast_jb_conf jb_conf; /*!< jitterbuffer configuration for this local channel */
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struct ast_channel *owner; /*!< Master Channel - Bridging happens here */
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struct ast_channel *chan; /*!< Outbound channel - PBX is run here */
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struct ast_module_user *u_owner;/*!< reference to keep the module loaded while in use */
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struct ast_module_user *u_chan; /*!< reference to keep the module loaded while in use */
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};
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#define LOCAL_ALREADY_MASQED (1 << 0) /*!< Already masqueraded */
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#define LOCAL_LAUNCHED_PBX (1 << 1) /*!< PBX was launched */
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#define LOCAL_NO_OPTIMIZATION (1 << 2) /*!< Do not optimize using masquerading */
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#define LOCAL_BRIDGE (1 << 3) /*!< Report back the "true" channel as being bridged to */
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#define LOCAL_MOH_PASSTHRU (1 << 4) /*!< Pass through music on hold start/stop frames */
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static int local_setoption(struct ast_channel *chan, int option, void * data, int datalen)
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{
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int res;
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struct local_pvt *p;
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struct ast_channel *otherchan;
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ast_chan_write_info_t *write_info;
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if (option != AST_OPTION_CHANNEL_WRITE) {
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return -1;
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}
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write_info = data;
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if (write_info->version != AST_CHAN_WRITE_INFO_T_VERSION) {
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ast_log(LOG_ERROR, "The chan_write_info_t type has changed, and this channel hasn't been updated!\n");
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return -1;
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}
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startover:
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ast_channel_lock(chan);
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p = chan->tech_pvt;
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if (!p) {
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ast_channel_unlock(chan);
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ast_log(LOG_WARNING, "Could not update other side of %s, local_pvt went away.\n", chan->name);
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return -1;
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}
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while (ao2_trylock(p)) {
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ast_channel_unlock(chan);
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sched_yield();
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ast_channel_lock(chan);
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p = chan->tech_pvt;
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if (!p) {
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ast_channel_unlock(chan);
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ast_log(LOG_WARNING, "Could not update other side of %s, local_pvt went away.\n", chan->name);
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return -1;
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}
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}
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otherchan = (write_info->chan == p->owner) ? p->chan : p->owner;
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if (!otherchan || otherchan == write_info->chan) {
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ao2_unlock(p);
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ast_channel_unlock(chan);
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ast_log(LOG_WARNING, "Could not update other side of %s, other side went away.\n", chan->name);
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return 0;
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}
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if (ast_channel_trylock(otherchan)) {
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ao2_unlock(p);
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ast_channel_unlock(chan);
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goto startover;
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}
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res = write_info->write_fn(otherchan, write_info->function, write_info->data, write_info->value);
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ast_channel_unlock(otherchan);
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ao2_unlock(p);
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ast_channel_unlock(chan);
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return res;
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}
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/*! \brief Adds devicestate to local channels */
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static int local_devicestate(void *data)
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{
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char *exten = ast_strdupa(data);
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char *context = NULL, *opts = NULL;
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int res;
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struct local_pvt *lp;
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struct ao2_iterator it;
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if (!(context = strchr(exten, '@'))) {
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ast_log(LOG_WARNING, "Someone used Local/%s somewhere without a @context. This is bad.\n", exten);
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return AST_DEVICE_INVALID;
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}
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*context++ = '\0';
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/* Strip options if they exist */
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if ((opts = strchr(context, '/')))
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*opts = '\0';
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ast_debug(3, "Checking if extension %s@%s exists (devicestate)\n", exten, context);
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res = ast_exists_extension(NULL, context, exten, 1, NULL);
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if (!res)
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return AST_DEVICE_INVALID;
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res = AST_DEVICE_NOT_INUSE;
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it = ao2_iterator_init(locals, 0);
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while ((lp = ao2_iterator_next(&it))) {
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if (!strcmp(exten, lp->exten) && !strcmp(context, lp->context) && lp->owner) {
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res = AST_DEVICE_INUSE;
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ao2_ref(lp, -1);
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break;
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}
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ao2_ref(lp, -1);
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}
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ao2_iterator_destroy(&it);
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return res;
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}
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/*! \brief Return the bridged channel of a Local channel */
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static struct ast_channel *local_bridgedchannel(struct ast_channel *chan, struct ast_channel *bridge)
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{
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struct local_pvt *p = bridge->tech_pvt;
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struct ast_channel *bridged = bridge;
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if (!p) {
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ast_debug(1, "Asked for bridged channel on '%s'/'%s', returning <none>\n",
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chan->name, bridge->name);
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return NULL;
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}
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ao2_lock(p);
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if (ast_test_flag(p, LOCAL_BRIDGE)) {
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/* Find the opposite channel */
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bridged = (bridge == p->owner ? p->chan : p->owner);
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/* Now see if the opposite channel is bridged to anything */
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if (!bridged) {
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bridged = bridge;
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} else if (bridged->_bridge) {
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bridged = bridged->_bridge;
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}
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}
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ao2_unlock(p);
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return bridged;
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}
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static int local_queryoption(struct ast_channel *ast, int option, void *data, int *datalen)
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{
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struct local_pvt *p = ast->tech_pvt;
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struct ast_channel *chan, *bridged;
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int res;
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if (!p) {
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return -1;
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}
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if (option != AST_OPTION_T38_STATE) {
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/* AST_OPTION_T38_STATE is the only supported option at this time */
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return -1;
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}
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ao2_lock(p);
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chan = IS_OUTBOUND(ast, p) ? p->owner : p->chan;
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try_again:
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if (!chan) {
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ao2_unlock(p);
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return -1;
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}
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if (ast_channel_trylock(chan)) {
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ao2_unlock(p);
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sched_yield();
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ao2_lock(p);
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chan = IS_OUTBOUND(ast, p) ? p->owner : p->chan;
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goto try_again;
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}
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bridged = ast_bridged_channel(chan);
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if (!bridged) {
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/* can't query channel unless we are bridged */
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ao2_unlock(p);
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ast_channel_unlock(chan);
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return -1;
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}
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if (ast_channel_trylock(bridged)) {
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ast_channel_unlock(chan);
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ao2_unlock(p);
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sched_yield();
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ao2_lock(p);
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chan = IS_OUTBOUND(ast, p) ? p->owner : p->chan;
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goto try_again;
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}
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res = ast_channel_queryoption(bridged, option, data, datalen, 0);
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ao2_unlock(p);
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ast_channel_unlock(chan);
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ast_channel_unlock(bridged);
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return res;
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}
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/*! \brief queue a frame on a to either the p->owner or p->chan
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*
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* \note the local_pvt MUST have it's ref count bumped before entering this function and
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* decremented after this function is called. This is a side effect of the deadlock
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* avoidance that is necessary to lock 2 channels and a tech_pvt. Without a ref counted
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* local_pvt, it is impossible to guarantee it will not be destroyed by another thread
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* during deadlock avoidance.
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*/
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static int local_queue_frame(struct local_pvt *p, int isoutbound, struct ast_frame *f,
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struct ast_channel *us, int us_locked)
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{
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struct ast_channel *other = NULL;
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/* Recalculate outbound channel */
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other = isoutbound ? p->owner : p->chan;
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if (!other) {
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return 0;
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}
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/* do not queue frame if generator is on both local channels */
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if (us && us->generator && other->generator) {
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return 0;
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}
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/* Ensure that we have both channels locked */
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while (other && ast_channel_trylock(other)) {
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int res;
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if ((res = ao2_unlock(p))) {
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ast_log(LOG_ERROR, "chan_local bug! '&p->lock' was not locked when entering local_queue_frame! (%s)\n", strerror(res));
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return -1;
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}
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if (us && us_locked) {
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do {
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CHANNEL_DEADLOCK_AVOIDANCE(us);
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} while (ao2_trylock(p));
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} else {
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usleep(1);
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ao2_lock(p);
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}
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other = isoutbound ? p->owner : p->chan;
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}
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if (other) {
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if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_RINGING) {
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ast_setstate(other, AST_STATE_RINGING);
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}
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ast_queue_frame(other, f);
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ast_channel_unlock(other);
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}
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return 0;
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}
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static int local_answer(struct ast_channel *ast)
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{
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struct local_pvt *p = ast->tech_pvt;
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int isoutbound;
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int res = -1;
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if (!p)
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return -1;
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|
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ao2_lock(p);
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ao2_ref(p, 1);
|
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isoutbound = IS_OUTBOUND(ast, p);
|
|
if (isoutbound) {
|
|
/* Pass along answer since somebody answered us */
|
|
struct ast_frame answer = { AST_FRAME_CONTROL, { AST_CONTROL_ANSWER } };
|
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res = local_queue_frame(p, isoutbound, &answer, ast, 1);
|
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} else {
|
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ast_log(LOG_WARNING, "Huh? Local is being asked to answer?\n");
|
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}
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
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return res;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \note This function assumes that we're only called from the "outbound" local channel side
|
|
*/
|
|
static void check_bridge(struct local_pvt *p)
|
|
{
|
|
struct ast_channel_monitor *tmp;
|
|
if (ast_test_flag(p, LOCAL_ALREADY_MASQED) || ast_test_flag(p, LOCAL_NO_OPTIMIZATION) || !p->chan || !p->owner || (p->chan->_bridge != ast_bridged_channel(p->chan)))
|
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return;
|
|
|
|
/* only do the masquerade if we are being called on the outbound channel,
|
|
if it has been bridged to another channel and if there are no pending
|
|
frames on the owner channel (because they would be transferred to the
|
|
outbound channel during the masquerade)
|
|
*/
|
|
if (p->chan->_bridge /* Not ast_bridged_channel! Only go one step! */ && AST_LIST_EMPTY(&p->owner->readq)) {
|
|
/* Masquerade bridged channel into owner */
|
|
/* Lock everything we need, one by one, and give up if
|
|
we can't get everything. Remember, we'll get another
|
|
chance in just a little bit */
|
|
if (!ast_channel_trylock(p->chan->_bridge)) {
|
|
if (!ast_check_hangup(p->chan->_bridge)) {
|
|
if (!ast_channel_trylock(p->owner)) {
|
|
if (!ast_check_hangup(p->owner)) {
|
|
if (p->owner->monitor && !p->chan->_bridge->monitor) {
|
|
/* If a local channel is being monitored, we don't want a masquerade
|
|
* to cause the monitor to go away. Since the masquerade swaps the monitors,
|
|
* pre-swapping the monitors before the masquerade will ensure that the monitor
|
|
* ends up where it is expected.
|
|
*/
|
|
tmp = p->owner->monitor;
|
|
p->owner->monitor = p->chan->_bridge->monitor;
|
|
p->chan->_bridge->monitor = tmp;
|
|
}
|
|
if (p->chan->audiohooks) {
|
|
struct ast_audiohook_list *audiohooks_swapper;
|
|
audiohooks_swapper = p->chan->audiohooks;
|
|
p->chan->audiohooks = p->owner->audiohooks;
|
|
p->owner->audiohooks = audiohooks_swapper;
|
|
}
|
|
|
|
/* If any Caller ID was set, preserve it after masquerade like above. We must check
|
|
* to see if Caller ID was set because otherwise we'll mistakingly copy info not
|
|
* set from the dialplan and will overwrite the real channel Caller ID. The reason
|
|
* for this whole preswapping action is because the Caller ID is set on the channel
|
|
* thread (which is the to be masqueraded away local channel) before both local
|
|
* channels are optimized away.
|
|
*/
|
|
if (p->owner->caller.id.name.valid || p->owner->caller.id.number.valid
|
|
|| p->owner->caller.id.subaddress.valid || p->owner->caller.ani.name.valid
|
|
|| p->owner->caller.ani.number.valid || p->owner->caller.ani.subaddress.valid) {
|
|
struct ast_party_caller tmp;
|
|
tmp = p->owner->caller;
|
|
p->owner->caller = p->chan->_bridge->caller;
|
|
p->chan->_bridge->caller = tmp;
|
|
}
|
|
if (p->owner->redirecting.from.name.valid || p->owner->redirecting.from.number.valid
|
|
|| p->owner->redirecting.from.subaddress.valid || p->owner->redirecting.to.name.valid
|
|
|| p->owner->redirecting.to.number.valid || p->owner->redirecting.to.subaddress.valid) {
|
|
struct ast_party_redirecting tmp;
|
|
tmp = p->owner->redirecting;
|
|
p->owner->redirecting = p->chan->_bridge->redirecting;
|
|
p->chan->_bridge->redirecting = tmp;
|
|
}
|
|
if (p->owner->dialed.number.str || p->owner->dialed.subaddress.valid) {
|
|
struct ast_party_dialed tmp;
|
|
tmp = p->owner->dialed;
|
|
p->owner->dialed = p->chan->_bridge->dialed;
|
|
p->chan->_bridge->dialed = tmp;
|
|
}
|
|
|
|
|
|
ast_app_group_update(p->chan, p->owner);
|
|
ast_channel_masquerade(p->owner, p->chan->_bridge);
|
|
ast_set_flag(p, LOCAL_ALREADY_MASQED);
|
|
}
|
|
ast_channel_unlock(p->owner);
|
|
}
|
|
ast_channel_unlock(p->chan->_bridge);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct ast_frame *local_read(struct ast_channel *ast)
|
|
{
|
|
return &ast_null_frame;
|
|
}
|
|
|
|
static int local_write(struct ast_channel *ast, struct ast_frame *f)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = -1;
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
/* Just queue for delivery to the other side */
|
|
ao2_lock(p);
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
if (isoutbound && f && (f->frametype == AST_FRAME_VOICE || f->frametype == AST_FRAME_VIDEO))
|
|
check_bridge(p);
|
|
if (!ast_test_flag(p, LOCAL_ALREADY_MASQED))
|
|
res = local_queue_frame(p, isoutbound, f, ast, 1);
|
|
else {
|
|
ast_debug(1, "Not posting to queue since already masked on '%s'\n", ast->name);
|
|
res = 0;
|
|
}
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int local_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
|
|
{
|
|
struct local_pvt *p = newchan->tech_pvt;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_lock(p);
|
|
|
|
if ((p->owner != oldchan) && (p->chan != oldchan)) {
|
|
ast_log(LOG_WARNING, "Old channel wasn't %p but was %p/%p\n", oldchan, p->owner, p->chan);
|
|
ao2_unlock(p);
|
|
return -1;
|
|
}
|
|
if (p->owner == oldchan)
|
|
p->owner = newchan;
|
|
else
|
|
p->chan = newchan;
|
|
|
|
/* Do not let a masquerade cause a Local channel to be bridged to itself! */
|
|
if (!ast_check_hangup(newchan) && (p->owner->_bridge == p->chan || p->chan->_bridge == p->owner)) {
|
|
ast_log(LOG_WARNING, "You can not bridge a Local channel to itself!\n");
|
|
ao2_unlock(p);
|
|
ast_queue_hangup(newchan);
|
|
return -1;
|
|
}
|
|
|
|
ao2_unlock(p);
|
|
return 0;
|
|
}
|
|
|
|
static int local_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = 0;
|
|
struct ast_frame f = { AST_FRAME_CONTROL, };
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
|
|
/* If this is an MOH hold or unhold, do it on the Local channel versus real channel */
|
|
if (!ast_test_flag(p, LOCAL_MOH_PASSTHRU) && condition == AST_CONTROL_HOLD) {
|
|
ast_moh_start(ast, data, NULL);
|
|
} else if (!ast_test_flag(p, LOCAL_MOH_PASSTHRU) && condition == AST_CONTROL_UNHOLD) {
|
|
ast_moh_stop(ast);
|
|
} else if (condition == AST_CONTROL_CONNECTED_LINE || condition == AST_CONTROL_REDIRECTING) {
|
|
struct ast_channel *this_channel;
|
|
struct ast_channel *the_other_channel;
|
|
/* A connected line update frame may only contain a partial amount of data, such
|
|
* as just a source, or just a ton, and not the full amount of information. However,
|
|
* the collected information is all stored in the outgoing channel's connectedline
|
|
* structure, so when receiving a connected line update on an outgoing local channel,
|
|
* we need to transmit the collected connected line information instead of whatever
|
|
* happens to be in this control frame. The same applies for redirecting information, which
|
|
* is why it is handled here as well.*/
|
|
ao2_lock(p);
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
if (isoutbound) {
|
|
this_channel = p->chan;
|
|
the_other_channel = p->owner;
|
|
} else {
|
|
this_channel = p->owner;
|
|
the_other_channel = p->chan;
|
|
}
|
|
if (the_other_channel) {
|
|
unsigned char frame_data[1024];
|
|
if (condition == AST_CONTROL_CONNECTED_LINE) {
|
|
if (isoutbound) {
|
|
ast_connected_line_copy_to_caller(&the_other_channel->caller, &this_channel->connected);
|
|
}
|
|
f.datalen = ast_connected_line_build_data(frame_data, sizeof(frame_data), &this_channel->connected, NULL);
|
|
} else {
|
|
f.datalen = ast_redirecting_build_data(frame_data, sizeof(frame_data), &this_channel->redirecting, NULL);
|
|
}
|
|
f.subclass.integer = condition;
|
|
f.data.ptr = frame_data;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 1);
|
|
}
|
|
ao2_unlock(p);
|
|
} else {
|
|
/* Queue up a frame representing the indication as a control frame */
|
|
ao2_lock(p);
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
f.subclass.integer = condition;
|
|
f.data.ptr = (void*)data;
|
|
f.datalen = datalen;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 1);
|
|
ao2_unlock(p);
|
|
}
|
|
|
|
ao2_ref(p, -1);
|
|
return res;
|
|
}
|
|
|
|
static int local_digit_begin(struct ast_channel *ast, char digit)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = -1;
|
|
struct ast_frame f = { AST_FRAME_DTMF_BEGIN, };
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
ao2_lock(p);
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
f.subclass.integer = digit;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 0);
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int local_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = -1;
|
|
struct ast_frame f = { AST_FRAME_DTMF_END, };
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
ao2_lock(p);
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
f.subclass.integer = digit;
|
|
f.len = duration;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 0);
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int local_sendtext(struct ast_channel *ast, const char *text)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = -1;
|
|
struct ast_frame f = { AST_FRAME_TEXT, };
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_lock(p);
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
f.data.ptr = (char *) text;
|
|
f.datalen = strlen(text) + 1;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 0);
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
return res;
|
|
}
|
|
|
|
static int local_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res = -1;
|
|
struct ast_frame f = { AST_FRAME_HTML, };
|
|
int isoutbound;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
ao2_lock(p);
|
|
ao2_ref(p, 1); /* ref for local_queue_frame */
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
f.subclass.integer = subclass;
|
|
f.data.ptr = (char *)data;
|
|
f.datalen = datalen;
|
|
res = local_queue_frame(p, isoutbound, &f, ast, 0);
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
|
|
return res;
|
|
}
|
|
|
|
/*! \brief Initiate new call, part of PBX interface
|
|
* dest is the dial string */
|
|
static int local_call(struct ast_channel *ast, char *dest, int timeout)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int res;
|
|
struct ast_var_t *varptr = NULL, *new;
|
|
size_t len, namelen;
|
|
char *reduced_dest = ast_strdupa(dest);
|
|
char *slash;
|
|
|
|
if (!p || p->owner != ast) {
|
|
return -1;
|
|
}
|
|
|
|
/* since we are letting go of channel locks that were locked coming into
|
|
* this function, then we need to give the tech pvt a ref */
|
|
ao2_ref(p, 1);
|
|
|
|
while (ao2_trylock(p)) {
|
|
ast_channel_unlock(ast);
|
|
sched_yield();
|
|
ast_channel_lock(ast);
|
|
}
|
|
while ((p->chan && p->owner) && ast_channel_trylock(p->chan)) {
|
|
ao2_unlock(p);
|
|
if (p->owner) {
|
|
ast_channel_unlock(p->owner);
|
|
}
|
|
sched_yield();
|
|
if (p->owner) {
|
|
ast_channel_lock(p->owner);
|
|
}
|
|
ao2_lock(p);
|
|
}
|
|
|
|
if (!p->owner || !p->chan) {
|
|
/* someone went away during the locking madness.
|
|
* time to bail. */
|
|
if (p->chan) {
|
|
ast_channel_unlock(p->chan);
|
|
}
|
|
ao2_unlock(p);
|
|
ao2_ref(p,-1);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Note that cid_num and cid_name aren't passed in the ast_channel_alloc
|
|
* call, so it's done here instead.
|
|
*
|
|
* All these failure points just return -1. The individual strings will
|
|
* be cleared when we destroy the channel.
|
|
*/
|
|
ast_party_redirecting_copy(&p->chan->redirecting, &p->owner->redirecting);
|
|
|
|
ast_party_dialed_copy(&p->chan->dialed, &p->owner->dialed);
|
|
|
|
ast_connected_line_copy_to_caller(&p->chan->caller, &p->owner->connected);
|
|
ast_connected_line_copy_from_caller(&p->chan->connected, &p->owner->caller);
|
|
|
|
ast_string_field_set(p->chan, language, p->owner->language);
|
|
ast_string_field_set(p->chan, accountcode, p->owner->accountcode);
|
|
ast_string_field_set(p->chan, musicclass, p->owner->musicclass);
|
|
ast_cdr_update(p->chan);
|
|
|
|
ast_channel_cc_params_init(p->chan, ast_channel_get_cc_config_params(p->owner));
|
|
|
|
/* Make sure we inherit the ANSWERED_ELSEWHERE flag if it's set on the queue/dial call request in the dialplan */
|
|
if (ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE)) {
|
|
ast_set_flag(p->chan, AST_FLAG_ANSWERED_ELSEWHERE);
|
|
}
|
|
|
|
/* copy the channel variables from the incoming channel to the outgoing channel */
|
|
/* Note that due to certain assumptions, they MUST be in the same order */
|
|
AST_LIST_TRAVERSE(&p->owner->varshead, varptr, entries) {
|
|
namelen = strlen(varptr->name);
|
|
len = sizeof(struct ast_var_t) + namelen + strlen(varptr->value) + 2;
|
|
if ((new = ast_calloc(1, len))) {
|
|
memcpy(new, varptr, len);
|
|
new->value = &(new->name[0]) + namelen + 1;
|
|
AST_LIST_INSERT_TAIL(&p->chan->varshead, new, entries);
|
|
}
|
|
}
|
|
ast_channel_datastore_inherit(p->owner, p->chan);
|
|
/* If the local channel has /n or /b on the end of it,
|
|
* we need to lop that off for our argument to setting
|
|
* up the CC_INTERFACES variable
|
|
*/
|
|
if ((slash = strrchr(reduced_dest, '/'))) {
|
|
*slash = '\0';
|
|
}
|
|
ast_set_cc_interfaces_chanvar(p->chan, reduced_dest);
|
|
|
|
if (!ast_exists_extension(p->chan, p->chan->context, p->chan->exten, 1,
|
|
S_COR(p->owner->caller.id.number.valid, p->owner->caller.id.number.str, NULL))) {
|
|
ast_log(LOG_NOTICE, "No such extension/context %s@%s while calling Local channel\n", p->chan->exten, p->chan->context);
|
|
ao2_unlock(p);
|
|
ast_channel_unlock(p->chan);
|
|
ao2_ref(p, -1);
|
|
return -1;
|
|
}
|
|
|
|
/* Start switch on sub channel */
|
|
if (!(res = ast_pbx_start(p->chan)))
|
|
ast_set_flag(p, LOCAL_LAUNCHED_PBX);
|
|
|
|
ao2_unlock(p);
|
|
ast_channel_unlock(p->chan);
|
|
ao2_ref(p, -1);
|
|
return res;
|
|
}
|
|
|
|
/*! \brief Hangup a call through the local proxy channel */
|
|
static int local_hangup(struct ast_channel *ast)
|
|
{
|
|
struct local_pvt *p = ast->tech_pvt;
|
|
int isoutbound;
|
|
struct ast_frame f = { AST_FRAME_CONTROL, { AST_CONTROL_HANGUP }, .data.uint32 = ast->hangupcause };
|
|
struct ast_channel *ochan = NULL;
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
/* we MUST give the tech_pvt a ref here since we are unlocking the
|
|
* channel during deadlock avoidance. */
|
|
ao2_ref(p, 1);
|
|
|
|
ao2_lock(p);
|
|
|
|
isoutbound = IS_OUTBOUND(ast, p);
|
|
|
|
if (p->chan && ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE)) {
|
|
ast_set_flag(p->chan, AST_FLAG_ANSWERED_ELSEWHERE);
|
|
ast_debug(2, "This local call has the ANSWERED_ELSEWHERE flag set.\n");
|
|
}
|
|
|
|
if (isoutbound) {
|
|
const char *status = pbx_builtin_getvar_helper(p->chan, "DIALSTATUS");
|
|
if ((status) && (p->owner)) {
|
|
/* Deadlock avoidance */
|
|
while (p->owner && ast_channel_trylock(p->owner)) {
|
|
ao2_unlock(p);
|
|
if (p->chan) {
|
|
ast_channel_unlock(p->chan);
|
|
}
|
|
sched_yield();
|
|
if (p->chan) {
|
|
ast_channel_lock(p->chan);
|
|
}
|
|
ao2_lock(p);
|
|
}
|
|
if (p->owner) {
|
|
p->owner->hangupcause = p->chan->hangupcause;
|
|
pbx_builtin_setvar_helper(p->owner, "CHANLOCALSTATUS", status);
|
|
ast_channel_unlock(p->owner);
|
|
}
|
|
}
|
|
if (!p->chan) {
|
|
/* chan was == to ast and was !NULL before deadlock avoidance started, if chan
|
|
* is NULL now, then we should bail because that channel
|
|
* hungup already. This is possible because we let go of the
|
|
* lock given to the ast channel passed to this function during
|
|
* deadlock avoidance. */
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
return 0;
|
|
}
|
|
p->chan = NULL;
|
|
ast_clear_flag(p, LOCAL_LAUNCHED_PBX);
|
|
ast_module_user_remove(p->u_chan);
|
|
} else {
|
|
ast_module_user_remove(p->u_owner);
|
|
while (p->chan && ast_channel_trylock(p->chan)) {
|
|
ao2_unlock(p);
|
|
if (p->owner) {
|
|
ast_channel_unlock(p->owner);
|
|
}
|
|
sched_yield();
|
|
if (p->owner) {
|
|
ast_channel_lock(p->owner);
|
|
}
|
|
ao2_lock(p);
|
|
}
|
|
if (p->chan) {
|
|
ast_queue_hangup(p->chan);
|
|
ast_channel_unlock(p->chan);
|
|
}
|
|
|
|
if (!p->owner) {
|
|
/* owner was == to ast and was !NULL before deadlock avoidance started, if
|
|
* owner is NULL now, then we should bail because that channel
|
|
* hungup already. This is possible because we let go of the
|
|
* lock given to the ast channel passed to this function during
|
|
* deadlock avoidance. */
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
return 0;
|
|
}
|
|
p->owner = NULL;
|
|
}
|
|
|
|
ast->tech_pvt = NULL;
|
|
|
|
if (!p->owner && !p->chan) {
|
|
ao2_unlock(p);
|
|
|
|
/* Remove from list */
|
|
ao2_unlink(locals, p);
|
|
ao2_ref(p, -1);
|
|
return 0;
|
|
}
|
|
if (p->chan && !ast_test_flag(p, LOCAL_LAUNCHED_PBX)) {
|
|
/* Need to actually hangup since there is no PBX */
|
|
ochan = p->chan;
|
|
} else {
|
|
local_queue_frame(p, isoutbound, &f, NULL, 1);
|
|
}
|
|
|
|
ao2_unlock(p);
|
|
if (ochan) {
|
|
ast_hangup(ochan);
|
|
}
|
|
|
|
ao2_ref(p, -1);
|
|
return 0;
|
|
}
|
|
|
|
static void local_destroy(void *obj)
|
|
{
|
|
struct local_pvt *pvt = obj;
|
|
pvt->reqcap = ast_format_cap_destroy(pvt->reqcap);
|
|
}
|
|
|
|
/*! \brief Create a call structure */
|
|
static struct local_pvt *local_alloc(const char *data, struct ast_format_cap *cap)
|
|
{
|
|
struct local_pvt *tmp = NULL;
|
|
char *c = NULL, *opts = NULL;
|
|
|
|
if (!(tmp = ao2_alloc(sizeof(*tmp), local_destroy))) {
|
|
return NULL;
|
|
}
|
|
if (!(tmp->reqcap = ast_format_cap_dup(cap))) {
|
|
ao2_ref(tmp, -1);
|
|
return NULL;
|
|
}
|
|
|
|
/* Initialize private structure information */
|
|
ast_copy_string(tmp->exten, data, sizeof(tmp->exten));
|
|
|
|
memcpy(&tmp->jb_conf, &g_jb_conf, sizeof(tmp->jb_conf));
|
|
|
|
/* Look for options */
|
|
if ((opts = strchr(tmp->exten, '/'))) {
|
|
*opts++ = '\0';
|
|
if (strchr(opts, 'n'))
|
|
ast_set_flag(tmp, LOCAL_NO_OPTIMIZATION);
|
|
if (strchr(opts, 'j')) {
|
|
if (ast_test_flag(tmp, LOCAL_NO_OPTIMIZATION))
|
|
ast_set_flag(&tmp->jb_conf, AST_JB_ENABLED);
|
|
else {
|
|
ast_log(LOG_ERROR, "You must use the 'n' option for chan_local "
|
|
"to use the 'j' option to enable the jitterbuffer\n");
|
|
}
|
|
}
|
|
if (strchr(opts, 'b')) {
|
|
ast_set_flag(tmp, LOCAL_BRIDGE);
|
|
}
|
|
if (strchr(opts, 'm')) {
|
|
ast_set_flag(tmp, LOCAL_MOH_PASSTHRU);
|
|
}
|
|
}
|
|
|
|
/* Look for a context */
|
|
if ((c = strchr(tmp->exten, '@')))
|
|
*c++ = '\0';
|
|
|
|
ast_copy_string(tmp->context, c ? c : "default", sizeof(tmp->context));
|
|
#if 0
|
|
/* We can't do this check here, because we don't know the CallerID yet, and
|
|
* the CallerID could potentially affect what step is actually taken (or
|
|
* even if that step exists). */
|
|
if (!ast_exists_extension(NULL, tmp->context, tmp->exten, 1, NULL)) {
|
|
ast_log(LOG_NOTICE, "No such extension/context %s@%s creating local channel\n", tmp->exten, tmp->context);
|
|
tmp = local_pvt_destroy(tmp);
|
|
} else {
|
|
#endif
|
|
/* Add to list */
|
|
ao2_link(locals, tmp);
|
|
#if 0
|
|
}
|
|
#endif
|
|
return tmp; /* this is returned with a ref */
|
|
}
|
|
|
|
/*! \brief Start new local channel */
|
|
static struct ast_channel *local_new(struct local_pvt *p, int state, const char *linkedid)
|
|
{
|
|
struct ast_channel *tmp = NULL, *tmp2 = NULL;
|
|
int randnum = ast_random() & 0xffff;
|
|
struct ast_format fmt;
|
|
const char *t;
|
|
int ama;
|
|
|
|
/* Allocate two new Asterisk channels */
|
|
/* safe accountcode */
|
|
if (p->owner && p->owner->accountcode)
|
|
t = p->owner->accountcode;
|
|
else
|
|
t = "";
|
|
|
|
if (p->owner)
|
|
ama = p->owner->amaflags;
|
|
else
|
|
ama = 0;
|
|
if (!(tmp = ast_channel_alloc(1, state, 0, 0, t, p->exten, p->context, linkedid, ama, "Local/%s@%s-%04x;1", p->exten, p->context, randnum))
|
|
|| !(tmp2 = ast_channel_alloc(1, AST_STATE_RING, 0, 0, t, p->exten, p->context, linkedid, ama, "Local/%s@%s-%04x;2", p->exten, p->context, randnum))) {
|
|
if (tmp) {
|
|
tmp = ast_channel_release(tmp);
|
|
}
|
|
ast_log(LOG_WARNING, "Unable to allocate channel structure(s)\n");
|
|
return NULL;
|
|
}
|
|
|
|
tmp2->tech = tmp->tech = &local_tech;
|
|
|
|
ast_format_cap_copy(tmp->nativeformats, p->reqcap);
|
|
ast_format_cap_copy(tmp2->nativeformats, p->reqcap);
|
|
|
|
/* Determine our read/write format and set it on each channel */
|
|
ast_best_codec(p->reqcap, &fmt);
|
|
ast_format_copy(&tmp->writeformat, &fmt);
|
|
ast_format_copy(&tmp2->writeformat, &fmt);
|
|
ast_format_copy(&tmp->rawwriteformat, &fmt);
|
|
ast_format_copy(&tmp2->rawwriteformat, &fmt);
|
|
ast_format_copy(&tmp->readformat, &fmt);
|
|
ast_format_copy(&tmp2->readformat, &fmt);
|
|
ast_format_copy(&tmp->rawreadformat, &fmt);
|
|
ast_format_copy(&tmp2->rawreadformat, &fmt);
|
|
|
|
tmp->tech_pvt = p;
|
|
tmp2->tech_pvt = p;
|
|
|
|
p->owner = tmp;
|
|
p->chan = tmp2;
|
|
p->u_owner = ast_module_user_add(p->owner);
|
|
p->u_chan = ast_module_user_add(p->chan);
|
|
|
|
ast_copy_string(tmp->context, p->context, sizeof(tmp->context));
|
|
ast_copy_string(tmp2->context, p->context, sizeof(tmp2->context));
|
|
ast_copy_string(tmp2->exten, p->exten, sizeof(tmp->exten));
|
|
tmp->priority = 1;
|
|
tmp2->priority = 1;
|
|
|
|
ast_jb_configure(tmp, &p->jb_conf);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
/*! \brief Part of PBX interface */
|
|
static struct ast_channel *local_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, void *data, int *cause)
|
|
{
|
|
struct local_pvt *p = NULL;
|
|
struct ast_channel *chan = NULL;
|
|
|
|
/* Allocate a new private structure and then Asterisk channel */
|
|
if ((p = local_alloc(data, cap))) {
|
|
if (!(chan = local_new(p, AST_STATE_DOWN, requestor ? requestor->linkedid : NULL))) {
|
|
ao2_unlink(locals, p);
|
|
}
|
|
if (chan && ast_channel_cc_params_init(chan, requestor ? ast_channel_get_cc_config_params((struct ast_channel *)requestor) : NULL)) {
|
|
chan = ast_channel_release(chan);
|
|
ao2_unlink(locals, p);
|
|
}
|
|
ao2_ref(p, -1); /* kill the ref from the alloc */
|
|
}
|
|
|
|
return chan;
|
|
}
|
|
|
|
/*! \brief CLI command "local show channels" */
|
|
static char *locals_show(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct local_pvt *p = NULL;
|
|
struct ao2_iterator it;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "local show channels";
|
|
e->usage =
|
|
"Usage: local show channels\n"
|
|
" Provides summary information on active local proxy channels.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc != 3)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
if (ao2_container_count(locals) == 0) {
|
|
ast_cli(a->fd, "No local channels in use\n");
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
it = ao2_iterator_init(locals, 0);
|
|
while ((p = ao2_iterator_next(&it))) {
|
|
ao2_lock(p);
|
|
ast_cli(a->fd, "%s -- %s@%s\n", p->owner ? p->owner->name : "<unowned>", p->exten, p->context);
|
|
ao2_unlock(p);
|
|
ao2_ref(p, -1);
|
|
}
|
|
ao2_iterator_destroy(&it);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
static struct ast_cli_entry cli_local[] = {
|
|
AST_CLI_DEFINE(locals_show, "List status of local channels"),
|
|
};
|
|
|
|
static int manager_optimize_away(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *channel;
|
|
struct local_pvt *p, *tmp = NULL;
|
|
struct ast_channel *c;
|
|
int found = 0;
|
|
struct ao2_iterator it;
|
|
|
|
channel = astman_get_header(m, "Channel");
|
|
|
|
if (ast_strlen_zero(channel)) {
|
|
astman_send_error(s, m, "'Channel' not specified.");
|
|
return 0;
|
|
}
|
|
|
|
c = ast_channel_get_by_name(channel);
|
|
if (!c) {
|
|
astman_send_error(s, m, "Channel does not exist.");
|
|
return 0;
|
|
}
|
|
|
|
p = c->tech_pvt;
|
|
ast_channel_unref(c);
|
|
c = NULL;
|
|
|
|
it = ao2_iterator_init(locals, 0);
|
|
while ((tmp = ao2_iterator_next(&it))) {
|
|
if (tmp == p) {
|
|
ao2_lock(tmp);
|
|
found = 1;
|
|
ast_clear_flag(tmp, LOCAL_NO_OPTIMIZATION);
|
|
ao2_unlock(tmp);
|
|
ao2_ref(tmp, -1);
|
|
break;
|
|
}
|
|
ao2_ref(tmp, -1);
|
|
}
|
|
ao2_iterator_destroy(&it);
|
|
|
|
if (found) {
|
|
astman_send_ack(s, m, "Queued channel to be optimized away");
|
|
} else {
|
|
astman_send_error(s, m, "Unable to find channel");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int locals_cmp_cb(void *obj, void *arg, int flags)
|
|
{
|
|
return (obj == arg) ? CMP_MATCH : 0;
|
|
}
|
|
|
|
/*! \brief Load module into PBX, register channel */
|
|
static int load_module(void)
|
|
{
|
|
if (!(local_tech.capabilities = ast_format_cap_alloc())) {
|
|
return AST_MODULE_LOAD_FAILURE;
|
|
}
|
|
ast_format_cap_add_all(local_tech.capabilities);
|
|
|
|
if (!(locals = ao2_container_alloc(BUCKET_SIZE, NULL, locals_cmp_cb))) {
|
|
ast_format_cap_destroy(local_tech.capabilities);
|
|
return AST_MODULE_LOAD_FAILURE;
|
|
}
|
|
|
|
/* Make sure we can register our channel type */
|
|
if (ast_channel_register(&local_tech)) {
|
|
ast_log(LOG_ERROR, "Unable to register channel class 'Local'\n");
|
|
ao2_ref(locals, -1);
|
|
ast_format_cap_destroy(local_tech.capabilities);
|
|
return AST_MODULE_LOAD_FAILURE;
|
|
}
|
|
ast_cli_register_multiple(cli_local, sizeof(cli_local) / sizeof(struct ast_cli_entry));
|
|
ast_manager_register_xml("LocalOptimizeAway", EVENT_FLAG_SYSTEM|EVENT_FLAG_CALL, manager_optimize_away);
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
/*! \brief Unload the local proxy channel from Asterisk */
|
|
static int unload_module(void)
|
|
{
|
|
struct local_pvt *p = NULL;
|
|
struct ao2_iterator it;
|
|
|
|
/* First, take us out of the channel loop */
|
|
ast_cli_unregister_multiple(cli_local, sizeof(cli_local) / sizeof(struct ast_cli_entry));
|
|
ast_manager_unregister("LocalOptimizeAway");
|
|
ast_channel_unregister(&local_tech);
|
|
|
|
it = ao2_iterator_init(locals, 0);
|
|
while ((p = ao2_iterator_next(&it))) {
|
|
if (p->owner) {
|
|
ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
|
|
}
|
|
ao2_ref(p, -1);
|
|
}
|
|
ao2_iterator_destroy(&it);
|
|
ao2_ref(locals, -1);
|
|
|
|
ast_format_cap_destroy(local_tech.capabilities);
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Local Proxy Channel (Note: used internally by other modules)",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.load_pri = AST_MODPRI_CHANNEL_DRIVER,
|
|
);
|