When using the Bridge AMI action on the same channel multiple times it was possible for the channel to return to the wrong location in the dialplan if the other party hung up. This happened because the priority of the channel was not preserved across each action invocation and it would fail to move on to the next priority in other cases. This change makes it so that the priority of a channel is preserved when taking control of it from another thread and it is incremented as appropriate such that the priority reflects where the channel should next be executed in the dialplan, not where it may or may not currently be. The Bridge AMI action was also changed to ensure that it too starts the channels at the next location in the dialplan. ASTERISK-24529 Change-Id: I52406669cf64208aef7252a65b63ade31fbf7a5a
1176 lines
38 KiB
C
1176 lines
38 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2012, Digium, Inc.
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* Copyright (C) 2012, Russell Bryant
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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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* \brief Routines implementing call features as call pickup, parking and transfer
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*
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* \author Mark Spencer <markster@digium.com>
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*/
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/*! \li \ref features.c uses the configuration file \ref features.conf
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* \addtogroup configuration_file Configuration Files
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*/
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/*!
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* \page features.conf features.conf
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* \verbinclude features.conf.sample
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include "asterisk/_private.h"
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#include <pthread.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <netinet/in.h>
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/causes.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/app.h"
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#include "asterisk/say.h"
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#include "asterisk/features.h"
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#include "asterisk/musiconhold.h"
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#include "asterisk/config.h"
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#include "asterisk/cli.h"
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#include "asterisk/manager.h"
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#include "asterisk/utils.h"
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#include "asterisk/devicestate.h"
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#include "asterisk/audiohook.h"
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#include "asterisk/global_datastores.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/test.h"
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#include "asterisk/bridge.h"
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#include "asterisk/bridge_features.h"
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#include "asterisk/bridge_basic.h"
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#include "asterisk/bridge_after.h"
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#include "asterisk/stasis.h"
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#include "asterisk/stasis_channels.h"
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#include "asterisk/features_config.h"
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#include "asterisk/max_forwards.h"
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/*** DOCUMENTATION
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<application name="Bridge" language="en_US">
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<synopsis>
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Bridge two channels.
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</synopsis>
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<syntax>
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<parameter name="channel" required="true">
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<para>The current channel is bridged to the specified <replaceable>channel</replaceable>.</para>
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</parameter>
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<parameter name="options">
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<optionlist>
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<option name="p">
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<para>Play a courtesy tone to <replaceable>channel</replaceable>.</para>
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</option>
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<option name="F" argsep="^">
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<argument name="context" required="false" />
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<argument name="exten" required="false" />
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<argument name="priority" required="true" />
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<para>When the bridger hangs up, transfer the <emphasis>bridged</emphasis> party
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to the specified destination and <emphasis>start</emphasis> execution at that location.</para>
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<note>
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<para>Any channel variables you want the called channel to inherit from the caller channel must be
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prefixed with one or two underbars ('_').</para>
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</note>
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<note>
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<para>This option will override the 'x' option</para>
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</note>
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</option>
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<option name="F">
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<para>When the bridger hangs up, transfer the <emphasis>bridged</emphasis> party
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to the next priority of the current extension and <emphasis>start</emphasis> execution
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at that location.</para>
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<note>
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<para>Any channel variables you want the called channel to inherit from the caller channel must be
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prefixed with one or two underbars ('_').</para>
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</note>
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<note>
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<para>Using this option from a Macro() or GoSub() might not make sense as there would be no return points.</para>
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</note>
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<note>
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<para>This option will override the 'x' option</para>
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</note>
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</option>
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<option name="h">
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<para>Allow the called party to hang up by sending the
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<replaceable>*</replaceable> DTMF digit.</para>
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</option>
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<option name="H">
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<para>Allow the calling party to hang up by pressing the
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<replaceable>*</replaceable> DTMF digit.</para>
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</option>
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<option name="k">
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<para>Allow the called party to enable parking of the call by sending
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the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
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</option>
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<option name="K">
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<para>Allow the calling party to enable parking of the call by sending
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the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
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</option>
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<option name="L(x[:y][:z])">
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<para>Limit the call to <replaceable>x</replaceable> ms. Play a warning
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when <replaceable>y</replaceable> ms are left. Repeat the warning every
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<replaceable>z</replaceable> ms. The following special variables can be
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used with this option:</para>
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<variablelist>
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<variable name="LIMIT_PLAYAUDIO_CALLER">
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<para>Play sounds to the caller. yes|no (default yes)</para>
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</variable>
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<variable name="LIMIT_PLAYAUDIO_CALLEE">
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<para>Play sounds to the callee. yes|no</para>
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</variable>
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<variable name="LIMIT_TIMEOUT_FILE">
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<para>File to play when time is up.</para>
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</variable>
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<variable name="LIMIT_CONNECT_FILE">
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<para>File to play when call begins.</para>
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</variable>
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<variable name="LIMIT_WARNING_FILE">
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<para>File to play as warning if <replaceable>y</replaceable> is
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defined. The default is to say the time remaining.</para>
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</variable>
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</variablelist>
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</option>
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<option name="S(x)">
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<para>Hang up the call after <replaceable>x</replaceable> seconds *after* the called party has answered the call.</para>
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</option>
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<option name="t">
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<para>Allow the called party to transfer the calling party by sending the
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DTMF sequence defined in <filename>features.conf</filename>.</para>
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</option>
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<option name="T">
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<para>Allow the calling party to transfer the called party by sending the
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DTMF sequence defined in <filename>features.conf</filename>.</para>
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</option>
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<option name="w">
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<para>Allow the called party to enable recording of the call by sending
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the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
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</option>
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<option name="W">
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<para>Allow the calling party to enable recording of the call by sending
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the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
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</option>
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<option name="x">
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<para>Cause the called party to be hung up after the bridge, instead of being
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restarted in the dialplan.</para>
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</option>
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</optionlist>
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</parameter>
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</syntax>
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<description>
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<para>Allows the ability to bridge two channels via the dialplan.</para>
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<para>This application sets the following channel variable upon completion:</para>
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<variablelist>
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<variable name="BRIDGERESULT">
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<para>The result of the bridge attempt as a text string.</para>
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<value name="SUCCESS" />
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<value name="FAILURE" />
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<value name="LOOP" />
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<value name="NONEXISTENT" />
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<value name="INCOMPATIBLE" />
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</variable>
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</variablelist>
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</description>
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<see-also>
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<ref type="manager">Bridge</ref>
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<ref type="managerEvent">BridgeCreate</ref>
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<ref type="managerEvent">BridgeEnter</ref>
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</see-also>
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</application>
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<manager name="Bridge" language="en_US">
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<synopsis>
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Bridge two channels already in the PBX.
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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="Channel1" required="true">
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<para>Channel to Bridge to Channel2.</para>
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</parameter>
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<parameter name="Channel2" required="true">
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<para>Channel to Bridge to Channel1.</para>
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</parameter>
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<parameter name="Tone">
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<para>Play courtesy tone to Channel 2.</para>
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<enumlist>
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<enum name="no" />
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<enum name="Channel1" />
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<enum name="Channel2" />
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<enum name="Both" />
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</enumlist>
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</parameter>
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</syntax>
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<description>
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<para>Bridge together two channels already in the PBX.</para>
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</description>
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<see-also>
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<ref type="application">Bridge</ref>
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<ref type="managerEvent">BridgeCreate</ref>
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<ref type="managerEvent">BridgeEnter</ref>
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<ref type="manager">BridgeDestroy</ref>
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<ref type="manager">BridgeInfo</ref>
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<ref type="manager">BridgeKick</ref>
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<ref type="manager">BridgeList</ref>
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</see-also>
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</manager>
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***/
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typedef enum {
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FEATURE_INTERPRET_DETECT, /* Used by ast_feature_detect */
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FEATURE_INTERPRET_DO, /* Used by feature_interpret */
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FEATURE_INTERPRET_CHECK, /* Used by feature_check */
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} feature_interpret_op;
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struct ast_dial_features {
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/*! Channel's feature flags. */
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struct ast_flags my_features;
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/*! Bridge peer's feature flags. */
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struct ast_flags peer_features;
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};
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static void *dial_features_duplicate(void *data)
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{
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struct ast_dial_features *df = data, *df_copy;
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if (!(df_copy = ast_calloc(1, sizeof(*df)))) {
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return NULL;
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}
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memcpy(df_copy, df, sizeof(*df));
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return df_copy;
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}
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static const struct ast_datastore_info dial_features_info = {
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.type = "dial-features",
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.destroy = ast_free_ptr,
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.duplicate = dial_features_duplicate,
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};
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/*!
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* \internal
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* \brief Set the features datastore if it doesn't exist.
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*
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* \param chan Channel to add features datastore
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* \param my_features The channel's feature flags
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* \param peer_features The channel's bridge peer feature flags
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*
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* \retval TRUE if features datastore already existed.
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*/
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static int add_features_datastore(struct ast_channel *chan, const struct ast_flags *my_features, const struct ast_flags *peer_features)
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{
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struct ast_datastore *datastore;
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struct ast_dial_features *dialfeatures;
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ast_channel_lock(chan);
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datastore = ast_channel_datastore_find(chan, &dial_features_info, NULL);
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ast_channel_unlock(chan);
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if (datastore) {
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/* Already exists. */
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return 1;
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}
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/* Create a new datastore with specified feature flags. */
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datastore = ast_datastore_alloc(&dial_features_info, NULL);
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if (!datastore) {
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ast_log(LOG_WARNING, "Unable to create channel features datastore.\n");
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return 0;
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}
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dialfeatures = ast_calloc(1, sizeof(*dialfeatures));
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if (!dialfeatures) {
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ast_log(LOG_WARNING, "Unable to allocate memory for feature flags.\n");
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ast_datastore_free(datastore);
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return 0;
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}
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ast_copy_flags(&dialfeatures->my_features, my_features, AST_FLAGS_ALL);
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ast_copy_flags(&dialfeatures->peer_features, peer_features, AST_FLAGS_ALL);
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datastore->inheritance = DATASTORE_INHERIT_FOREVER;
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datastore->data = dialfeatures;
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ast_channel_lock(chan);
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ast_channel_datastore_add(chan, datastore);
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ast_channel_unlock(chan);
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return 0;
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}
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struct ast_bridge_thread_obj
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{
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struct ast_bridge_config bconfig;
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struct ast_channel *chan;
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struct ast_channel *peer;
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unsigned int return_to_pbx:1;
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};
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static void set_config_flags(struct ast_channel *chan, struct ast_bridge_config *config)
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{
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ast_clear_flag(config, AST_FLAGS_ALL);
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if (ast_test_flag(&config->features_caller, AST_FEATURE_DTMF_MASK)) {
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ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_0);
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}
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if (ast_test_flag(&config->features_callee, AST_FEATURE_DTMF_MASK)) {
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ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_1);
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}
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if (!(ast_test_flag(config, AST_BRIDGE_DTMF_CHANNEL_0) && ast_test_flag(config, AST_BRIDGE_DTMF_CHANNEL_1))) {
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RAII_VAR(struct ao2_container *, applicationmap, NULL, ao2_cleanup);
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ast_channel_lock(chan);
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applicationmap = ast_get_chan_applicationmap(chan);
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ast_channel_unlock(chan);
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if (!applicationmap) {
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return;
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}
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/* If an applicationmap exists for this channel at all, then the channel needs the DTMF flag set */
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ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_0);
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}
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}
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void ast_channel_log(char *title, struct ast_channel *chan);
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void ast_channel_log(char *title, struct ast_channel *chan) /* for debug, this is handy enough to justify keeping it in the source */
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{
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ast_log(LOG_NOTICE, "______ %s (%lx)______\n", title, (unsigned long) chan);
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ast_log(LOG_NOTICE, "CHAN: name: %s; appl: %s; data: %s; contxt: %s; exten: %s; pri: %d;\n",
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ast_channel_name(chan), ast_channel_appl(chan), ast_channel_data(chan),
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ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan));
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ast_log(LOG_NOTICE, "CHAN: acctcode: %s; dialcontext: %s; amaflags: %x; maccontxt: %s; macexten: %s; macpri: %d;\n",
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ast_channel_accountcode(chan), ast_channel_dialcontext(chan), ast_channel_amaflags(chan),
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ast_channel_macrocontext(chan), ast_channel_macroexten(chan), ast_channel_macropriority(chan));
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ast_log(LOG_NOTICE, "CHAN: masq: %p; masqr: %p; uniqueID: %s; linkedID:%s\n",
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ast_channel_masq(chan), ast_channel_masqr(chan),
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ast_channel_uniqueid(chan), ast_channel_linkedid(chan));
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if (ast_channel_masqr(chan)) {
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ast_log(LOG_NOTICE, "CHAN: masquerading as: %s; cdr: %p;\n",
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ast_channel_name(ast_channel_masqr(chan)), ast_channel_cdr(ast_channel_masqr(chan)));
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}
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ast_log(LOG_NOTICE, "===== done ====\n");
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}
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static void set_bridge_features_on_config(struct ast_bridge_config *config, const char *features)
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{
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const char *feature;
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if (ast_strlen_zero(features)) {
|
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return;
|
|
}
|
|
|
|
for (feature = features; *feature; feature++) {
|
|
struct ast_flags *party;
|
|
|
|
if (isupper(*feature)) {
|
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party = &config->features_caller;
|
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} else {
|
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party = &config->features_callee;
|
|
}
|
|
|
|
switch (tolower(*feature)) {
|
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case 't' :
|
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ast_set_flag(party, AST_FEATURE_REDIRECT);
|
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break;
|
|
case 'k' :
|
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ast_set_flag(party, AST_FEATURE_PARKCALL);
|
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break;
|
|
case 'h' :
|
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ast_set_flag(party, AST_FEATURE_DISCONNECT);
|
|
break;
|
|
case 'w' :
|
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ast_set_flag(party, AST_FEATURE_AUTOMON);
|
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break;
|
|
case 'x' :
|
|
ast_set_flag(party, AST_FEATURE_AUTOMIXMON);
|
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break;
|
|
default :
|
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ast_log(LOG_WARNING, "Skipping unknown feature code '%c'\n", *feature);
|
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break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void add_features_datastores(struct ast_channel *caller, struct ast_channel *callee, struct ast_bridge_config *config)
|
|
{
|
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if (add_features_datastore(caller, &config->features_caller, &config->features_callee)) {
|
|
/*
|
|
* If we don't return here, then when we do a builtin_atxfer we
|
|
* will copy the disconnect flags over from the atxfer to the
|
|
* callee (Party C).
|
|
*/
|
|
return;
|
|
}
|
|
|
|
add_features_datastore(callee, &config->features_callee, &config->features_caller);
|
|
}
|
|
|
|
static void bridge_config_set_limits_warning_values(struct ast_bridge_config *config, struct ast_bridge_features_limits *limits)
|
|
{
|
|
if (config->end_sound) {
|
|
ast_string_field_set(limits, duration_sound, config->end_sound);
|
|
}
|
|
|
|
if (config->warning_sound) {
|
|
ast_string_field_set(limits, warning_sound, config->warning_sound);
|
|
}
|
|
|
|
if (config->start_sound) {
|
|
ast_string_field_set(limits, connect_sound, config->start_sound);
|
|
}
|
|
|
|
limits->frequency = config->warning_freq;
|
|
limits->warning = config->play_warning;
|
|
}
|
|
|
|
/*!
|
|
* \internal brief Setup limit hook structures on calls that need limits
|
|
*
|
|
* \param config ast_bridge_config which provides the limit data
|
|
* \param caller_limits pointer to an ast_bridge_features_limits struct which will store the caller side limits
|
|
* \param callee_limits pointer to an ast_bridge_features_limits struct which will store the callee side limits
|
|
*/
|
|
static void bridge_config_set_limits(struct ast_bridge_config *config, struct ast_bridge_features_limits *caller_limits, struct ast_bridge_features_limits *callee_limits)
|
|
{
|
|
if (ast_test_flag(&config->features_caller, AST_FEATURE_PLAY_WARNING)) {
|
|
bridge_config_set_limits_warning_values(config, caller_limits);
|
|
}
|
|
|
|
if (ast_test_flag(&config->features_callee, AST_FEATURE_PLAY_WARNING)) {
|
|
bridge_config_set_limits_warning_values(config, callee_limits);
|
|
}
|
|
|
|
caller_limits->duration = config->timelimit;
|
|
callee_limits->duration = config->timelimit;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Check if Monitor needs to be started on a channel.
|
|
* \since 12.0.0
|
|
*
|
|
* \param chan The bridge considers this channel the caller.
|
|
* \param peer The bridge considers this channel the callee.
|
|
*
|
|
* \return Nothing
|
|
*/
|
|
static void bridge_check_monitor(struct ast_channel *chan, struct ast_channel *peer)
|
|
{
|
|
const char *value;
|
|
const char *monitor_args = NULL;
|
|
struct ast_channel *monitor_chan = NULL;
|
|
|
|
ast_channel_lock(chan);
|
|
value = pbx_builtin_getvar_helper(chan, "AUTO_MONITOR");
|
|
if (!ast_strlen_zero(value)) {
|
|
monitor_args = ast_strdupa(value);
|
|
monitor_chan = chan;
|
|
}
|
|
ast_channel_unlock(chan);
|
|
if (!monitor_chan) {
|
|
ast_channel_lock(peer);
|
|
value = pbx_builtin_getvar_helper(peer, "AUTO_MONITOR");
|
|
if (!ast_strlen_zero(value)) {
|
|
monitor_args = ast_strdupa(value);
|
|
monitor_chan = peer;
|
|
}
|
|
ast_channel_unlock(peer);
|
|
}
|
|
if (monitor_chan) {
|
|
struct ast_app *monitor_app;
|
|
|
|
monitor_app = pbx_findapp("Monitor");
|
|
if (monitor_app) {
|
|
pbx_exec(monitor_chan, monitor_app, monitor_args);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Send the peer channel on its way on bridge start failure.
|
|
* \since 12.0.0
|
|
*
|
|
* \param chan Chan to put into autoservice.
|
|
* \param peer Chan to send to after bridge goto or run hangup handlers and hangup.
|
|
*
|
|
* \return Nothing
|
|
*/
|
|
static void bridge_failed_peer_goto(struct ast_channel *chan, struct ast_channel *peer)
|
|
{
|
|
if (ast_bridge_setup_after_goto(peer)
|
|
|| ast_pbx_start(peer)) {
|
|
ast_autoservice_chan_hangup_peer(chan, peer);
|
|
}
|
|
}
|
|
|
|
static int pre_bridge_setup(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config,
|
|
struct ast_bridge_features *chan_features, struct ast_bridge_features *peer_features)
|
|
{
|
|
int res;
|
|
|
|
set_bridge_features_on_config(config, pbx_builtin_getvar_helper(chan, "BRIDGE_FEATURES"));
|
|
add_features_datastores(chan, peer, config);
|
|
|
|
/*
|
|
* This is an interesting case. One example is if a ringing
|
|
* channel gets redirected to an extension that picks up a
|
|
* parked call. This will make sure that the call taken out of
|
|
* parking gets told that the channel it just got bridged to is
|
|
* still ringing.
|
|
*/
|
|
if (ast_channel_state(chan) == AST_STATE_RINGING
|
|
&& ast_channel_visible_indication(peer) != AST_CONTROL_RINGING) {
|
|
ast_indicate(peer, AST_CONTROL_RINGING);
|
|
}
|
|
|
|
bridge_check_monitor(chan, peer);
|
|
|
|
set_config_flags(chan, config);
|
|
|
|
/* Answer if need be */
|
|
if (ast_channel_state(chan) != AST_STATE_UP) {
|
|
if (ast_raw_answer(chan)) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
#ifdef FOR_DEBUG
|
|
/* show the two channels and cdrs involved in the bridge for debug & devel purposes */
|
|
ast_channel_log("Pre-bridge CHAN Channel info", chan);
|
|
ast_channel_log("Pre-bridge PEER Channel info", peer);
|
|
#endif
|
|
|
|
res = 0;
|
|
ast_channel_lock(chan);
|
|
ast_max_forwards_reset(chan);
|
|
res |= ast_bridge_features_ds_append(chan, &config->features_caller);
|
|
ast_channel_unlock(chan);
|
|
ast_channel_lock(peer);
|
|
ast_max_forwards_reset(peer);
|
|
res |= ast_bridge_features_ds_append(peer, &config->features_callee);
|
|
ast_channel_unlock(peer);
|
|
|
|
if (res) {
|
|
return -1;
|
|
}
|
|
|
|
if (config->timelimit) {
|
|
struct ast_bridge_features_limits call_duration_limits_chan;
|
|
struct ast_bridge_features_limits call_duration_limits_peer;
|
|
int abandon_call = 0; /* TRUE if set limits fails so we can abandon the call. */
|
|
|
|
if (ast_bridge_features_limits_construct(&call_duration_limits_chan)) {
|
|
ast_log(LOG_ERROR, "Could not construct caller duration limits. Bridge canceled.\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
if (ast_bridge_features_limits_construct(&call_duration_limits_peer)) {
|
|
ast_log(LOG_ERROR, "Could not construct callee duration limits. Bridge canceled.\n");
|
|
ast_bridge_features_limits_destroy(&call_duration_limits_chan);
|
|
|
|
return -1;
|
|
}
|
|
|
|
bridge_config_set_limits(config, &call_duration_limits_chan, &call_duration_limits_peer);
|
|
|
|
if (ast_bridge_features_set_limits(chan_features, &call_duration_limits_chan, 0)) {
|
|
abandon_call = 1;
|
|
}
|
|
if (ast_bridge_features_set_limits(peer_features, &call_duration_limits_peer, 0)) {
|
|
abandon_call = 1;
|
|
}
|
|
|
|
/* At this point we are done with the limits structs since they have been copied to the individual feature sets. */
|
|
ast_bridge_features_limits_destroy(&call_duration_limits_chan);
|
|
ast_bridge_features_limits_destroy(&call_duration_limits_peer);
|
|
|
|
if (abandon_call) {
|
|
ast_log(LOG_ERROR, "Could not set duration limits on one or more sides of the call. Bridge canceled.\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ast_bridge_call_with_flags(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, unsigned int flags)
|
|
{
|
|
int res;
|
|
struct ast_bridge *bridge;
|
|
struct ast_bridge_features chan_features;
|
|
struct ast_bridge_features *peer_features;
|
|
|
|
/* Setup features. */
|
|
res = ast_bridge_features_init(&chan_features);
|
|
peer_features = ast_bridge_features_new();
|
|
if (res || !peer_features) {
|
|
ast_bridge_features_destroy(peer_features);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
bridge_failed_peer_goto(chan, peer);
|
|
return -1;
|
|
}
|
|
|
|
if (pre_bridge_setup(chan, peer, config, &chan_features, peer_features)) {
|
|
ast_bridge_features_destroy(peer_features);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
bridge_failed_peer_goto(chan, peer);
|
|
return -1;
|
|
}
|
|
|
|
/* Create bridge */
|
|
bridge = ast_bridge_basic_new();
|
|
if (!bridge) {
|
|
ast_bridge_features_destroy(peer_features);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
bridge_failed_peer_goto(chan, peer);
|
|
return -1;
|
|
}
|
|
|
|
ast_bridge_basic_set_flags(bridge, flags);
|
|
|
|
/* Put peer into the bridge */
|
|
if (ast_bridge_impart(bridge, peer, NULL, peer_features,
|
|
AST_BRIDGE_IMPART_CHAN_INDEPENDENT | AST_BRIDGE_IMPART_INHIBIT_JOIN_COLP)) {
|
|
ast_bridge_destroy(bridge, 0);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
bridge_failed_peer_goto(chan, peer);
|
|
return -1;
|
|
}
|
|
|
|
/* Join bridge */
|
|
ast_bridge_join(bridge, chan, NULL, &chan_features, NULL,
|
|
AST_BRIDGE_JOIN_PASS_REFERENCE | AST_BRIDGE_JOIN_INHIBIT_JOIN_COLP);
|
|
|
|
/*
|
|
* If the bridge was broken for a hangup that isn't real, then
|
|
* don't run the h extension, because the channel isn't really
|
|
* hung up. This should really only happen with
|
|
* AST_SOFTHANGUP_ASYNCGOTO.
|
|
*/
|
|
res = -1;
|
|
ast_channel_lock(chan);
|
|
if (ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_ASYNCGOTO) {
|
|
res = 0;
|
|
}
|
|
ast_channel_unlock(chan);
|
|
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
|
|
if (res && config->end_bridge_callback) {
|
|
config->end_bridge_callback(config->end_bridge_callback_data);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*!
|
|
* \brief bridge the call and set CDR
|
|
*
|
|
* \param chan The bridge considers this channel the caller.
|
|
* \param peer The bridge considers this channel the callee.
|
|
* \param config Configuration for this bridge.
|
|
*
|
|
* Set start time, check for two channels,check if monitor on
|
|
* check for feature activation, create new CDR
|
|
* \retval res on success.
|
|
* \retval -1 on failure to bridge.
|
|
*/
|
|
int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config)
|
|
{
|
|
return ast_bridge_call_with_flags(chan, peer, config, 0);
|
|
}
|
|
|
|
enum play_tone_action {
|
|
PLAYTONE_NONE = 0,
|
|
PLAYTONE_CHANNEL1 = (1 << 0),
|
|
PLAYTONE_CHANNEL2 = (1 << 1),
|
|
PLAYTONE_BOTH = PLAYTONE_CHANNEL1 | PLAYTONE_CHANNEL2,
|
|
};
|
|
|
|
static enum play_tone_action parse_playtone(const char *playtone_val)
|
|
{
|
|
if (ast_strlen_zero(playtone_val) || ast_false(playtone_val)) {
|
|
return PLAYTONE_NONE;
|
|
} if (!strcasecmp(playtone_val, "channel1")) {
|
|
return PLAYTONE_CHANNEL1;
|
|
} else if (!strcasecmp(playtone_val, "channel2") || ast_true(playtone_val)) {
|
|
return PLAYTONE_CHANNEL2;
|
|
} else if (!strcasecmp(playtone_val, "both")) {
|
|
return PLAYTONE_BOTH;
|
|
} else {
|
|
/* Invalid input. Assume none */
|
|
return PLAYTONE_NONE;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \brief Bridge channels together
|
|
* \param s
|
|
* \param m
|
|
*
|
|
* Make sure valid channels were specified,
|
|
* send errors if any of the channels could not be found/locked, answer channels if needed,
|
|
* create the placeholder channels and grab the other channels
|
|
* make the channels compatible, send error if we fail doing so
|
|
* setup the bridge thread object and start the bridge.
|
|
*
|
|
* \retval 0
|
|
*/
|
|
static int action_bridge(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *channela = astman_get_header(m, "Channel1");
|
|
const char *channelb = astman_get_header(m, "Channel2");
|
|
enum play_tone_action playtone = parse_playtone(astman_get_header(m, "Tone"));
|
|
RAII_VAR(struct ast_channel *, chana, NULL, ao2_cleanup);
|
|
RAII_VAR(struct ast_channel *, chanb, NULL, ao2_cleanup);
|
|
const char *chana_exten;
|
|
const char *chana_context;
|
|
int chana_priority;
|
|
const char *chanb_exten;
|
|
const char *chanb_context;
|
|
int chanb_priority;
|
|
struct ast_bridge *bridge;
|
|
char buf[256];
|
|
RAII_VAR(struct ast_features_xfer_config *, xfer_cfg_a, NULL, ao2_cleanup);
|
|
RAII_VAR(struct ast_features_xfer_config *, xfer_cfg_b, NULL, ao2_cleanup);
|
|
|
|
/* make sure valid channels were specified */
|
|
if (ast_strlen_zero(channela) || ast_strlen_zero(channelb)) {
|
|
astman_send_error(s, m, "Missing channel parameter in request");
|
|
return 0;
|
|
}
|
|
|
|
ast_debug(1, "Performing Bridge action on %s and %s\n", channela, channelb);
|
|
|
|
/* Start with chana */
|
|
chana = ast_channel_get_by_name_prefix(channela, strlen(channela));
|
|
if (!chana) {
|
|
snprintf(buf, sizeof(buf), "Channel1 does not exist: %s", channela);
|
|
astman_send_error(s, m, buf);
|
|
return 0;
|
|
}
|
|
ast_channel_lock(chana);
|
|
xfer_cfg_a = ast_get_chan_features_xfer_config(chana);
|
|
chana_exten = ast_strdupa(ast_channel_exten(chana));
|
|
chana_context = ast_strdupa(ast_channel_context(chana));
|
|
chana_priority = ast_channel_priority(chana);
|
|
if (ast_test_flag(ast_channel_flags(chana), AST_FLAG_IN_AUTOLOOP)) {
|
|
chana_priority++;
|
|
}
|
|
ast_channel_unlock(chana);
|
|
|
|
chanb = ast_channel_get_by_name_prefix(channelb, strlen(channelb));
|
|
if (!chanb) {
|
|
snprintf(buf, sizeof(buf), "Channel2 does not exist: %s", channelb);
|
|
astman_send_error(s, m, buf);
|
|
return 0;
|
|
}
|
|
ast_channel_lock(chanb);
|
|
xfer_cfg_b = ast_get_chan_features_xfer_config(chanb);
|
|
chanb_exten = ast_strdupa(ast_channel_exten(chanb));
|
|
chanb_context = ast_strdupa(ast_channel_context(chanb));
|
|
chanb_priority = ast_channel_priority(chanb);
|
|
if (ast_test_flag(ast_channel_flags(chanb), AST_FLAG_IN_AUTOLOOP)) {
|
|
chanb_priority++;
|
|
}
|
|
ast_channel_unlock(chanb);
|
|
|
|
bridge = ast_bridge_basic_new();
|
|
if (!bridge) {
|
|
astman_send_error(s, m, "Unable to create bridge\n");
|
|
return 0;
|
|
}
|
|
|
|
ast_bridge_set_after_goto(chana, chana_context, chana_exten, chana_priority);
|
|
if (ast_bridge_add_channel(bridge, chana, NULL, playtone & PLAYTONE_CHANNEL1, xfer_cfg_a ? xfer_cfg_a->xfersound : NULL)) {
|
|
snprintf(buf, sizeof(buf), "Unable to add Channel1 to bridge: %s", ast_channel_name(chana));
|
|
astman_send_error(s, m, buf);
|
|
ast_bridge_destroy(bridge, 0);
|
|
return 0;
|
|
}
|
|
|
|
ast_bridge_set_after_goto(chanb, chanb_context, chanb_exten, chanb_priority);
|
|
if (ast_bridge_add_channel(bridge, chanb, NULL, playtone & PLAYTONE_CHANNEL2, xfer_cfg_b ? xfer_cfg_b->xfersound : NULL)) {
|
|
snprintf(buf, sizeof(buf), "Unable to add Channel2 to bridge: %s", ast_channel_name(chanb));
|
|
astman_send_error(s, m, buf);
|
|
ast_bridge_destroy(bridge, 0);
|
|
return 0;
|
|
}
|
|
|
|
astman_send_ack(s, m, "Channels have been bridged");
|
|
ao2_cleanup(bridge);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static char *app_bridge = "Bridge";
|
|
|
|
enum {
|
|
BRIDGE_OPT_PLAYTONE = (1 << 0),
|
|
OPT_CALLEE_HANGUP = (1 << 1),
|
|
OPT_CALLER_HANGUP = (1 << 2),
|
|
OPT_DURATION_LIMIT = (1 << 3),
|
|
OPT_DURATION_STOP = (1 << 4),
|
|
OPT_CALLEE_TRANSFER = (1 << 5),
|
|
OPT_CALLER_TRANSFER = (1 << 6),
|
|
OPT_CALLEE_MONITOR = (1 << 7),
|
|
OPT_CALLER_MONITOR = (1 << 8),
|
|
OPT_CALLEE_PARK = (1 << 9),
|
|
OPT_CALLER_PARK = (1 << 10),
|
|
OPT_CALLEE_KILL = (1 << 11),
|
|
OPT_CALLEE_GO_ON = (1 << 12),
|
|
};
|
|
|
|
enum {
|
|
OPT_ARG_DURATION_LIMIT = 0,
|
|
OPT_ARG_DURATION_STOP,
|
|
OPT_ARG_CALLEE_GO_ON,
|
|
/* note: this entry _MUST_ be the last one in the enum */
|
|
OPT_ARG_ARRAY_SIZE,
|
|
};
|
|
|
|
AST_APP_OPTIONS(bridge_exec_options, BEGIN_OPTIONS
|
|
AST_APP_OPTION('p', BRIDGE_OPT_PLAYTONE),
|
|
AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
|
|
AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
|
|
AST_APP_OPTION('H', OPT_CALLER_HANGUP),
|
|
AST_APP_OPTION('k', OPT_CALLEE_PARK),
|
|
AST_APP_OPTION('K', OPT_CALLER_PARK),
|
|
AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
|
|
AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
|
|
AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
|
|
AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
|
|
AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
|
|
AST_APP_OPTION('W', OPT_CALLER_MONITOR),
|
|
AST_APP_OPTION('x', OPT_CALLEE_KILL),
|
|
END_OPTIONS );
|
|
|
|
int ast_bridge_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
|
|
char *parse, struct timeval *calldurationlimit)
|
|
{
|
|
char *stringp = ast_strdupa(parse);
|
|
char *limit_str, *warning_str, *warnfreq_str;
|
|
const char *var;
|
|
int play_to_caller = 0, play_to_callee = 0;
|
|
int delta;
|
|
|
|
limit_str = strsep(&stringp, ":");
|
|
warning_str = strsep(&stringp, ":");
|
|
warnfreq_str = strsep(&stringp, ":");
|
|
|
|
config->timelimit = atol(limit_str);
|
|
if (warning_str)
|
|
config->play_warning = atol(warning_str);
|
|
if (warnfreq_str)
|
|
config->warning_freq = atol(warnfreq_str);
|
|
|
|
if (!config->timelimit) {
|
|
ast_log(LOG_WARNING, "Bridge does not accept L(%s), hanging up.\n", limit_str);
|
|
config->timelimit = config->play_warning = config->warning_freq = 0;
|
|
config->warning_sound = NULL;
|
|
return -1; /* error */
|
|
} else if ( (delta = config->play_warning - config->timelimit) > 0) {
|
|
int w = config->warning_freq;
|
|
|
|
/*
|
|
* If the first warning is requested _after_ the entire call
|
|
* would end, and no warning frequency is requested, then turn
|
|
* off the warning. If a warning frequency is requested, reduce
|
|
* the 'first warning' time by that frequency until it falls
|
|
* within the call's total time limit.
|
|
*
|
|
* Graphically:
|
|
* timelim->| delta |<-playwarning
|
|
* 0__________________|_________________|
|
|
* | w | | | |
|
|
*
|
|
* so the number of intervals to cut is 1+(delta-1)/w
|
|
*/
|
|
if (w == 0) {
|
|
config->play_warning = 0;
|
|
} else {
|
|
config->play_warning -= w * ( 1 + (delta-1)/w );
|
|
if (config->play_warning < 1)
|
|
config->play_warning = config->warning_freq = 0;
|
|
}
|
|
}
|
|
|
|
ast_channel_lock(chan);
|
|
|
|
var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLER");
|
|
play_to_caller = var ? ast_true(var) : 1;
|
|
|
|
var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLEE");
|
|
play_to_callee = var ? ast_true(var) : 0;
|
|
|
|
if (!play_to_caller && !play_to_callee)
|
|
play_to_caller = 1;
|
|
|
|
var = pbx_builtin_getvar_helper(chan, "LIMIT_WARNING_FILE");
|
|
config->warning_sound = !ast_strlen_zero(var) ? ast_strdup(var) : ast_strdup("timeleft");
|
|
|
|
/* The code looking at config wants a NULL, not just "", to decide
|
|
* that the message should not be played, so we replace "" with NULL.
|
|
* Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
|
|
* not found.
|
|
*/
|
|
|
|
var = pbx_builtin_getvar_helper(chan, "LIMIT_TIMEOUT_FILE");
|
|
config->end_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
|
|
|
|
var = pbx_builtin_getvar_helper(chan, "LIMIT_CONNECT_FILE");
|
|
config->start_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
|
|
|
|
ast_channel_unlock(chan);
|
|
|
|
/* undo effect of S(x) in case they are both used */
|
|
calldurationlimit->tv_sec = 0;
|
|
calldurationlimit->tv_usec = 0;
|
|
|
|
/* more efficient to do it like S(x) does since no advanced opts */
|
|
if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
|
|
calldurationlimit->tv_sec = config->timelimit / 1000;
|
|
calldurationlimit->tv_usec = (config->timelimit % 1000) * 1000;
|
|
ast_verb(3, "Setting call duration limit to %.3lf seconds.\n",
|
|
calldurationlimit->tv_sec + calldurationlimit->tv_usec / 1000000.0);
|
|
play_to_caller = 0;
|
|
play_to_callee = 0;
|
|
config->timelimit = 0;
|
|
config->play_warning = 0;
|
|
config->warning_freq = 0;
|
|
} else {
|
|
ast_verb(4, "Limit Data for this call:\n");
|
|
ast_verb(4, "timelimit = %ld ms (%.3lf s)\n", config->timelimit, config->timelimit / 1000.0);
|
|
ast_verb(4, "play_warning = %ld ms (%.3lf s)\n", config->play_warning, config->play_warning / 1000.0);
|
|
ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
|
|
ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
|
|
ast_verb(4, "warning_freq = %ld ms (%.3lf s)\n", config->warning_freq, config->warning_freq / 1000.0);
|
|
ast_verb(4, "start_sound = %s\n", S_OR(config->start_sound, ""));
|
|
ast_verb(4, "warning_sound = %s\n", config->warning_sound);
|
|
ast_verb(4, "end_sound = %s\n", S_OR(config->end_sound, ""));
|
|
}
|
|
if (play_to_caller)
|
|
ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
|
|
if (play_to_callee)
|
|
ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*!
|
|
* \brief Bridge channels
|
|
* \param chan
|
|
* \param data channel to bridge with.
|
|
*
|
|
* Split data, check we aren't bridging with ourself, check valid channel,
|
|
* answer call if not already, check compatible channels, setup bridge config
|
|
* now bridge call, if transferred party hangs up return to PBX extension.
|
|
*/
|
|
static int bridge_exec(struct ast_channel *chan, const char *data)
|
|
{
|
|
struct ast_channel *current_dest_chan;
|
|
char *tmp_data = NULL;
|
|
struct ast_flags opts = { 0, };
|
|
struct ast_bridge_config bconfig = { { 0, }, };
|
|
char *opt_args[OPT_ARG_ARRAY_SIZE];
|
|
struct timeval calldurationlimit = { 0, };
|
|
const char *context;
|
|
const char *extension;
|
|
int priority;
|
|
int bridge_add_failed;
|
|
struct ast_bridge_features chan_features;
|
|
struct ast_bridge_features *peer_features;
|
|
struct ast_bridge *bridge;
|
|
struct ast_features_xfer_config *xfer_cfg;
|
|
|
|
AST_DECLARE_APP_ARGS(args,
|
|
AST_APP_ARG(dest_chan);
|
|
AST_APP_ARG(options);
|
|
);
|
|
|
|
if (ast_strlen_zero(data)) {
|
|
ast_log(LOG_WARNING, "Bridge require at least 1 argument specifying the other end of the bridge\n");
|
|
return -1;
|
|
}
|
|
|
|
tmp_data = ast_strdupa(data);
|
|
AST_STANDARD_APP_ARGS(args, tmp_data);
|
|
if (!ast_strlen_zero(args.options))
|
|
ast_app_parse_options(bridge_exec_options, &opts, opt_args, args.options);
|
|
|
|
/* make sure we have a valid end point */
|
|
current_dest_chan = ast_channel_get_by_name_prefix(args.dest_chan,
|
|
strlen(args.dest_chan));
|
|
if (!current_dest_chan) {
|
|
ast_log(LOG_WARNING, "Bridge failed because channel %s does not exist\n",
|
|
args.dest_chan);
|
|
return 0;
|
|
}
|
|
|
|
/* avoid bridge with ourselves */
|
|
if (chan == current_dest_chan) {
|
|
ast_channel_unref(current_dest_chan);
|
|
ast_log(LOG_WARNING, "Unable to bridge channel %s with itself\n", ast_channel_name(chan));
|
|
return 0;
|
|
}
|
|
|
|
if (ast_test_flag(&opts, OPT_DURATION_LIMIT)
|
|
&& !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])
|
|
&& ast_bridge_timelimit(chan, &bconfig, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit)) {
|
|
pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "FAILURE");
|
|
goto done;
|
|
}
|
|
|
|
if (ast_test_flag(&opts, OPT_CALLEE_TRANSFER))
|
|
ast_set_flag(&(bconfig.features_callee), AST_FEATURE_REDIRECT);
|
|
if (ast_test_flag(&opts, OPT_CALLER_TRANSFER))
|
|
ast_set_flag(&(bconfig.features_caller), AST_FEATURE_REDIRECT);
|
|
if (ast_test_flag(&opts, OPT_CALLEE_HANGUP))
|
|
ast_set_flag(&(bconfig.features_callee), AST_FEATURE_DISCONNECT);
|
|
if (ast_test_flag(&opts, OPT_CALLER_HANGUP))
|
|
ast_set_flag(&(bconfig.features_caller), AST_FEATURE_DISCONNECT);
|
|
if (ast_test_flag(&opts, OPT_CALLEE_MONITOR))
|
|
ast_set_flag(&(bconfig.features_callee), AST_FEATURE_AUTOMON);
|
|
if (ast_test_flag(&opts, OPT_CALLER_MONITOR))
|
|
ast_set_flag(&(bconfig.features_caller), AST_FEATURE_AUTOMON);
|
|
if (ast_test_flag(&opts, OPT_CALLEE_PARK))
|
|
ast_set_flag(&(bconfig.features_callee), AST_FEATURE_PARKCALL);
|
|
if (ast_test_flag(&opts, OPT_CALLER_PARK))
|
|
ast_set_flag(&(bconfig.features_caller), AST_FEATURE_PARKCALL);
|
|
|
|
/* Setup after bridge goto location. */
|
|
if (ast_test_flag(&opts, OPT_CALLEE_GO_ON)) {
|
|
ast_channel_lock(chan);
|
|
context = ast_strdupa(ast_channel_context(chan));
|
|
extension = ast_strdupa(ast_channel_exten(chan));
|
|
priority = ast_channel_priority(chan);
|
|
ast_channel_unlock(chan);
|
|
ast_bridge_set_after_go_on(current_dest_chan, context, extension, priority,
|
|
opt_args[OPT_ARG_CALLEE_GO_ON]);
|
|
} else if (!ast_test_flag(&opts, OPT_CALLEE_KILL)) {
|
|
ast_channel_lock(current_dest_chan);
|
|
context = ast_strdupa(ast_channel_context(current_dest_chan));
|
|
extension = ast_strdupa(ast_channel_exten(current_dest_chan));
|
|
priority = ast_channel_priority(current_dest_chan);
|
|
ast_channel_unlock(current_dest_chan);
|
|
ast_bridge_set_after_go_on(current_dest_chan, context, extension, priority, NULL);
|
|
}
|
|
|
|
if (ast_bridge_features_init(&chan_features)) {
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
goto done;
|
|
}
|
|
|
|
peer_features = ast_bridge_features_new();
|
|
if (!peer_features) {
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
goto done;
|
|
}
|
|
|
|
if (pre_bridge_setup(chan, current_dest_chan, &bconfig, &chan_features, peer_features)) {
|
|
ast_bridge_features_destroy(peer_features);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
goto done;
|
|
}
|
|
|
|
bridge = ast_bridge_basic_new();
|
|
if (!bridge) {
|
|
ast_bridge_features_destroy(peer_features);
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
goto done;
|
|
}
|
|
|
|
ast_channel_lock(current_dest_chan);
|
|
xfer_cfg = ast_get_chan_features_xfer_config(current_dest_chan);
|
|
ast_channel_unlock(current_dest_chan);
|
|
bridge_add_failed = ast_bridge_add_channel(bridge, current_dest_chan, peer_features,
|
|
ast_test_flag(&opts, BRIDGE_OPT_PLAYTONE),
|
|
xfer_cfg ? xfer_cfg->xfersound : NULL);
|
|
ao2_cleanup(xfer_cfg);
|
|
if (bridge_add_failed) {
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
ast_bridge_destroy(bridge, 0);
|
|
goto done;
|
|
}
|
|
|
|
/* Don't keep the channel ref in case it was not already in a bridge. */
|
|
current_dest_chan = ast_channel_unref(current_dest_chan);
|
|
|
|
ast_bridge_join(bridge, chan, NULL, &chan_features, NULL,
|
|
AST_BRIDGE_JOIN_PASS_REFERENCE);
|
|
|
|
ast_bridge_features_cleanup(&chan_features);
|
|
|
|
/* The bridge has ended, set BRIDGERESULT to SUCCESS. */
|
|
pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "SUCCESS");
|
|
done:
|
|
ast_free((char *) bconfig.warning_sound);
|
|
ast_free((char *) bconfig.end_sound);
|
|
ast_free((char *) bconfig.start_sound);
|
|
|
|
ast_channel_cleanup(current_dest_chan);
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Clean up resources on Asterisk shutdown
|
|
*/
|
|
static void features_shutdown(void)
|
|
{
|
|
ast_features_config_shutdown();
|
|
|
|
ast_manager_unregister("Bridge");
|
|
|
|
ast_unregister_application(app_bridge);
|
|
|
|
}
|
|
|
|
int ast_features_init(void)
|
|
{
|
|
int res;
|
|
|
|
res = ast_features_config_init();
|
|
if (res) {
|
|
return res;
|
|
}
|
|
res |= ast_register_application2(app_bridge, bridge_exec, NULL, NULL, NULL);
|
|
res |= ast_manager_register_xml_core("Bridge", EVENT_FLAG_CALL, action_bridge);
|
|
|
|
if (res) {
|
|
features_shutdown();
|
|
} else {
|
|
ast_register_cleanup(features_shutdown);
|
|
}
|
|
|
|
return res;
|
|
}
|