Fix Dial I option ignored if dial forked and one fork redirects.
[asterisk/asterisk.git] / apps / app_dial.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2008, Digium, Inc.
5  *
6  * Mark Spencer <markster@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /*! \file
20  *
21  * \brief dial() & retrydial() - Trivial application to dial a channel and send an URL on answer
22  *
23  * \author Mark Spencer <markster@digium.com>
24  *
25  * \ingroup applications
26  */
27
28 /*** MODULEINFO
29         <depend>chan_local</depend>
30         <support_level>core</support_level>
31  ***/
32
33
34 #include "asterisk.h"
35
36 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
37
38 #include <sys/time.h>
39 #include <sys/signal.h>
40 #include <sys/stat.h>
41 #include <netinet/in.h>
42
43 #include "asterisk/paths.h" /* use ast_config_AST_DATA_DIR */
44 #include "asterisk/lock.h"
45 #include "asterisk/file.h"
46 #include "asterisk/channel.h"
47 #include "asterisk/pbx.h"
48 #include "asterisk/module.h"
49 #include "asterisk/translate.h"
50 #include "asterisk/say.h"
51 #include "asterisk/config.h"
52 #include "asterisk/features.h"
53 #include "asterisk/musiconhold.h"
54 #include "asterisk/callerid.h"
55 #include "asterisk/utils.h"
56 #include "asterisk/app.h"
57 #include "asterisk/causes.h"
58 #include "asterisk/rtp_engine.h"
59 #include "asterisk/cdr.h"
60 #include "asterisk/manager.h"
61 #include "asterisk/privacy.h"
62 #include "asterisk/stringfields.h"
63 #include "asterisk/global_datastores.h"
64 #include "asterisk/dsp.h"
65 #include "asterisk/cel.h"
66 #include "asterisk/aoc.h"
67 #include "asterisk/ccss.h"
68 #include "asterisk/indications.h"
69 #include "asterisk/framehook.h"
70
71 /*** DOCUMENTATION
72         <application name="Dial" language="en_US">
73                 <synopsis>
74                         Attempt to connect to another device or endpoint and bridge the call.
75                 </synopsis>
76                 <syntax>
77                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
78                                 <argument name="Technology/Resource" required="true">
79                                         <para>Specification of the device(s) to dial.  These must be in the format of
80                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
81                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
82                                         represents a resource available to that particular channel driver.</para>
83                                 </argument>
84                                 <argument name="Technology2/Resource2" required="false" multiple="true">
85                                         <para>Optional extra devices to dial in parallel</para>
86                                         <para>If you need more then one enter them as
87                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
88                                 </argument>
89                         </parameter>
90                         <parameter name="timeout" required="false">
91                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
92                                 <para>If not specified, this defaults to 136 years.</para>
93                         </parameter>
94                         <parameter name="options" required="false">
95                                 <optionlist>
96                                 <option name="A">
97                                         <argument name="x" required="true">
98                                                 <para>The file to play to the called party</para>
99                                         </argument>
100                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
101                                 </option>
102                                 <option name="a">
103                                         <para>Immediately answer the calling channel when the called channel answers in
104                                         all cases. Normally, the calling channel is answered when the called channel
105                                         answers, but when options such as A() and M() are used, the calling channel is
106                                         not answered until all actions on the called channel (such as playing an
107                                         announcement) are completed.  This option can be used to answer the calling
108                                         channel before doing anything on the called channel. You will rarely need to use
109                                         this option, the default behavior is adequate in most cases.</para>
110                                 </option>
111                                 <option name="b" argsep="^">
112                                         <para>Before initiating an outgoing call, Gosub to the specified
113                                         location using the newly created channel.  The Gosub will be
114                                         executed for each destination channel.</para>
115                                         <argument name="context" required="false" />
116                                         <argument name="exten" required="false" />
117                                         <argument name="priority" required="true" hasparams="optional" argsep="^">
118                                                 <argument name="arg1" multiple="true" required="true" />
119                                                 <argument name="argN" />
120                                         </argument>
121                                 </option>
122                                 <option name="B" argsep="^">
123                                         <para>Before initiating the outgoing call(s), Gosub to the specified
124                                         location using the current channel.</para>
125                                         <argument name="context" required="false" />
126                                         <argument name="exten" required="false" />
127                                         <argument name="priority" required="true" hasparams="optional" argsep="^">
128                                                 <argument name="arg1" multiple="true" required="true" />
129                                                 <argument name="argN" />
130                                         </argument>
131                                 </option>
132                                 <option name="C">
133                                         <para>Reset the call detail record (CDR) for this call.</para>
134                                 </option>
135                                 <option name="c">
136                                         <para>If the Dial() application cancels this call, always set the flag to tell the channel
137                                         driver that the call is answered elsewhere.</para>
138                                 </option>
139                                 <option name="d">
140                                         <para>Allow the calling user to dial a 1 digit extension while waiting for
141                                         a call to be answered. Exit to that extension if it exists in the
142                                         current context, or the context defined in the <variable>EXITCONTEXT</variable> variable,
143                                         if it exists.</para>
144                                         <note>
145                                                 <para>Many SIP and ISDN phones cannot send DTMF digits until the call is
146                                                 connected.  If you wish to use this option with these phones, you
147                                                 can use the <literal>Answer</literal> application before dialing.</para>
148                                         </note>
149                                 </option>
150                                 <option name="D" argsep=":">
151                                         <argument name="called" />
152                                         <argument name="calling" />
153                                         <argument name="progress" />
154                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
155                                         party has answered, but before the call gets bridged. The 
156                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
157                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
158                                         can be used alone.  If <replaceable>progress</replaceable> is specified, its DTMF is sent
159                                         immediately after receiving a PROGRESS message.</para>
160                                 </option>
161                                 <option name="e">
162                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
163                                 </option>
164                                 <option name="f">
165                                         <argument name="x" required="false" />
166                                         <para>If <replaceable>x</replaceable> is not provided, force the CallerID sent on a call-forward or
167                                         deflection to the dialplan extension of this Dial() using a dialplan <literal>hint</literal>.
168                                         For example, some PSTNs do not allow CallerID to be set to anything
169                                         other than the numbers assigned to you.
170                                         If <replaceable>x</replaceable> is provided, force the CallerID sent to <replaceable>x</replaceable>.</para>
171                                 </option>
172                                 <option name="F" argsep="^">
173                                         <argument name="context" required="false" />
174                                         <argument name="exten" required="false" />
175                                         <argument name="priority" required="true" />
176                                         <para>When the caller hangs up, transfer the <emphasis>called</emphasis> party
177                                         to the specified destination and <emphasis>start</emphasis> execution at that location.</para>
178                                         <note>
179                                                 <para>Any channel variables you want the called channel to inherit from the caller channel must be
180                                                 prefixed with one or two underbars ('_').</para>
181                                         </note>
182                                 </option>
183                                 <option name="F">
184                                         <para>When the caller hangs up, transfer the <emphasis>called</emphasis> party to the next priority of the current extension
185                                         and <emphasis>start</emphasis> execution at that location.</para>
186                                         <note>
187                                                 <para>Any channel variables you want the called channel to inherit from the caller channel must be
188                                                 prefixed with one or two underbars ('_').</para>
189                                         </note>
190                                         <note>
191                                                 <para>Using this option from a Macro() or GoSub() might not make sense as there would be no return points.</para>
192                                         </note>
193                                 </option>
194                                 <option name="g">
195                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
196                                         destination channel hangs up.</para>
197                                 </option>
198                                 <option name="G" argsep="^">
199                                         <argument name="context" required="false" />
200                                         <argument name="exten" required="false" />
201                                         <argument name="priority" required="true" />
202                                         <para>If the call is answered, transfer the calling party to
203                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
204                                         <replaceable>priority</replaceable> plus one.</para>
205                                         <note>
206                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
207                                         </note>
208                                 </option>
209                                 <option name="h">
210                                         <para>Allow the called party to hang up by sending the DTMF sequence
211                                         defined for disconnect in <filename>features.conf</filename>.</para>
212                                 </option>
213                                 <option name="H">
214                                         <para>Allow the calling party to hang up by sending the DTMF sequence
215                                         defined for disconnect in <filename>features.conf</filename>.</para>
216                                         <note>
217                                                 <para>Many SIP and ISDN phones cannot send DTMF digits until the call is
218                                                 connected.  If you wish to allow DTMF disconnect before the dialed
219                                                 party answers with these phones, you can use the <literal>Answer</literal>
220                                                 application before dialing.</para>
221                                         </note>
222                                 </option>
223                                 <option name="i">
224                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
225                                 </option>
226                                 <option name="I">
227                                         <para>Asterisk will ignore any connected line update requests or any redirecting party
228                                         update requests it may receive on this dial attempt.</para>
229                                 </option>
230                                 <option name="k">
231                                         <para>Allow the called party to enable parking of the call by sending
232                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
233                                 </option>
234                                 <option name="K">
235                                         <para>Allow the calling party to enable parking of the call by sending
236                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
237                                 </option>
238                                 <option name="L" argsep=":">
239                                         <argument name="x" required="true">
240                                                 <para>Maximum call time, in milliseconds</para>
241                                         </argument>
242                                         <argument name="y">
243                                                 <para>Warning time, in milliseconds</para>
244                                         </argument>
245                                         <argument name="z">
246                                                 <para>Repeat time, in milliseconds</para>
247                                         </argument>
248                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
249                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
250                                         <para>This option is affected by the following variables:</para>
251                                         <variablelist>
252                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
253                                                         <value name="yes" default="true" />
254                                                         <value name="no" />
255                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
256                                                 </variable>
257                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
258                                                         <value name="yes" />
259                                                         <value name="no" default="true"/>
260                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
261                                                 </variable>
262                                                 <variable name="LIMIT_TIMEOUT_FILE">
263                                                         <value name="filename"/>
264                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
265                                                         If not set, the time remaining will be announced.</para>
266                                                 </variable>
267                                                 <variable name="LIMIT_CONNECT_FILE">
268                                                         <value name="filename"/>
269                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
270                                                         If not set, the time remaining will be announced.</para>
271                                                 </variable>
272                                                 <variable name="LIMIT_WARNING_FILE">
273                                                         <value name="filename"/>
274                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
275                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
276                                                 </variable>
277                                         </variablelist>
278                                 </option>
279                                 <option name="m">
280                                         <argument name="class" required="false"/>
281                                         <para>Provide hold music to the calling party until a requested
282                                         channel answers. A specific music on hold <replaceable>class</replaceable>
283                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
284                                 </option>
285                                 <option name="M" argsep="^">
286                                         <argument name="macro" required="true">
287                                                 <para>Name of the macro that should be executed.</para>
288                                         </argument>
289                                         <argument name="arg" multiple="true">
290                                                 <para>Macro arguments</para>
291                                         </argument>
292                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
293                                         before connecting to the calling channel. Arguments can be specified to the Macro
294                                         using <literal>^</literal> as a delimiter. The macro can set the variable
295                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
296                                         finished executing:</para>
297                                         <variablelist>
298                                                 <variable name="MACRO_RESULT">
299                                                         <para>If set, this action will be taken after the macro finished executing.</para>
300                                                         <value name="ABORT">
301                                                                 Hangup both legs of the call
302                                                         </value>
303                                                         <value name="CONGESTION">
304                                                                 Behave as if line congestion was encountered
305                                                         </value>
306                                                         <value name="BUSY">
307                                                                 Behave as if a busy signal was encountered
308                                                         </value>
309                                                         <value name="CONTINUE">
310                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
311                                                         </value>
312                                                         <value name="GOTO:[[&lt;context&gt;^]&lt;exten&gt;^]&lt;priority&gt;">
313                                                                 Transfer the call to the specified destination.
314                                                         </value>
315                                                 </variable>
316                                         </variablelist>
317                                         <note>
318                                                 <para>You cannot use any additional action post answer options in conjunction
319                                                 with this option. Also, pbx services are run on the peer (called) channel,
320                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
321                                         </note>
322                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
323                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
324                                         Macro()</para></warning>
325                                 </option>
326                                 <option name="n">
327                                         <argument name="delete">
328                                                 <para>With <replaceable>delete</replaceable> either not specified or set to <literal>0</literal>,
329                                                 the recorded introduction will not be deleted if the caller hangs up while the remote party has not
330                                                 yet answered.</para>
331                                                 <para>With <replaceable>delete</replaceable> set to <literal>1</literal>, the introduction will
332                                                 always be deleted.</para>
333                                         </argument>
334                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
335                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
336                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
337                                         directory.</para>
338                                 </option>
339                                 <option name="N">
340                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
341                                         that if Caller*ID is present, do not screen the call.</para>
342                                 </option>
343                                 <option name="o">
344                                         <argument name="x" required="false" />
345                                         <para>If <replaceable>x</replaceable> is not provided, specify that the CallerID that was present on the
346                                         <emphasis>calling</emphasis> channel be stored as the CallerID on the <emphasis>called</emphasis> channel.
347                                         This was the behavior of Asterisk 1.0 and earlier.
348                                         If <replaceable>x</replaceable> is provided, specify the CallerID stored on the <emphasis>called</emphasis> channel.
349                                         Note that o(${CALLERID(all)}) is similar to option o without the parameter.</para>
350                                 </option>
351                                 <option name="O">
352                                         <argument name="mode">
353                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
354                                                 the originator hanging up will cause the phone to ring back immediately.</para>
355                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
356                                                 flashes the trunk, it will ring their phone back.</para>
357                                         </argument>
358                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
359                                         works when bridging a DAHDI channel to another DAHDI channel
360                                         only. if specified on non-DAHDI interfaces, it will be ignored.
361                                         When the destination answers (presumably an operator services
362                                         station), the originator no longer has control of their line.
363                                         They may hang up, but the switch will not release their line
364                                         until the destination party (the operator) hangs up.</para>
365                                 </option>
366                                 <option name="p">
367                                         <para>This option enables screening mode. This is basically Privacy mode
368                                         without memory.</para>
369                                 </option>
370                                 <option name="P">
371                                         <argument name="x" />
372                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
373                                         it is provided. The current extension is used if a database family/key is not specified.</para>
374                                 </option>
375                                 <option name="r">
376                                         <para>Default: Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
377                                         party until the called channel has answered.</para>
378                                         <argument name="tone" required="false">
379                                                 <para>Indicate progress to calling party. Send audio 'tone' from indications.conf</para>
380                                         </argument>
381                                 </option>
382                                 <option name="S">
383                                         <argument name="x" required="true" />
384                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
385                                         answered the call.</para>
386                                 </option>
387                                 <option name="s">
388                                         <argument name="x" required="true" />
389                                         <para>Force the outgoing callerid tag parameter to be set to the string <replaceable>x</replaceable>.</para>
390                                         <para>Works with the f option.</para>
391                                 </option>
392                                 <option name="t">
393                                         <para>Allow the called party to transfer the calling party by sending the
394                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
395                                         transfers initiated by other methods.</para>
396                                 </option>
397                                 <option name="T">
398                                         <para>Allow the calling party to transfer the called party by sending the
399                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
400                                         transfers initiated by other methods.</para>
401                                 </option>
402                                 <option name="U" argsep="^">
403                                         <argument name="x" required="true">
404                                                 <para>Name of the subroutine to execute via Gosub</para>
405                                         </argument>
406                                         <argument name="arg" multiple="true" required="false">
407                                                 <para>Arguments for the Gosub routine</para>
408                                         </argument>
409                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
410                                         to the calling channel. Arguments can be specified to the Gosub
411                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
412                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
413                                         <variablelist>
414                                                 <variable name="GOSUB_RESULT">
415                                                         <value name="ABORT">
416                                                                 Hangup both legs of the call.
417                                                         </value>
418                                                         <value name="CONGESTION">
419                                                                 Behave as if line congestion was encountered.
420                                                         </value>
421                                                         <value name="BUSY">
422                                                                 Behave as if a busy signal was encountered.
423                                                         </value>
424                                                         <value name="CONTINUE">
425                                                                 Hangup the called party and allow the calling party
426                                                                 to continue dialplan execution at the next priority.
427                                                         </value>
428                                                         <value name="GOTO:[[&lt;context&gt;^]&lt;exten&gt;^]&lt;priority&gt;">
429                                                                 Transfer the call to the specified destination.
430                                                         </value>
431                                                 </variable>
432                                         </variablelist>
433                                         <note>
434                                                 <para>You cannot use any additional action post answer options in conjunction
435                                                 with this option. Also, pbx services are run on the peer (called) channel,
436                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
437                                         </note>
438                                 </option>
439                                 <option name="u">
440                                         <argument name = "x" required="true">
441                                                 <para>Force the outgoing callerid presentation indicator parameter to be set
442                                                 to one of the values passed in <replaceable>x</replaceable>:
443                                                 <literal>allowed_not_screened</literal>
444                                                 <literal>allowed_passed_screen</literal>
445                                                 <literal>allowed_failed_screen</literal>
446                                                 <literal>allowed</literal>
447                                                 <literal>prohib_not_screened</literal>
448                                                 <literal>prohib_passed_screen</literal>
449                                                 <literal>prohib_failed_screen</literal>
450                                                 <literal>prohib</literal>
451                                                 <literal>unavailable</literal></para>
452                                         </argument>
453                                         <para>Works with the f option.</para>
454                                 </option>
455                                 <option name="w">
456                                         <para>Allow the called party to enable recording of the call by sending
457                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
458                                 </option>
459                                 <option name="W">
460                                         <para>Allow the calling party to enable recording of the call by sending
461                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
462                                 </option>
463                                 <option name="x">
464                                         <para>Allow the called party to enable recording of the call by sending
465                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
466                                 </option>
467                                 <option name="X">
468                                         <para>Allow the calling party to enable recording of the call by sending
469                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
470                                 </option>
471                                 <option name="z">
472                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
473                                 </option>
474                                 </optionlist>
475                         </parameter>
476                         <parameter name="URL">
477                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
478                         </parameter>
479                 </syntax>
480                 <description>
481                         <para>This application will place calls to one or more specified channels. As soon
482                         as one of the requested channels answers, the originating channel will be
483                         answered, if it has not already been answered. These two channels will then
484                         be active in a bridged call. All other channels that were requested will then
485                         be hung up.</para>
486
487                         <para>Unless there is a timeout specified, the Dial application will wait
488                         indefinitely until one of the called channels answers, the user hangs up, or
489                         if all of the called channels are busy or unavailable. Dialplan executing will
490                         continue if no requested channels can be called, or if the timeout expires.
491                         This application will report normal termination if the originating channel
492                         hangs up, or if the call is bridged and either of the parties in the bridge
493                         ends the call.</para>
494                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
495                         application will be put into that group (as in Set(GROUP()=...).
496                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
497                         application will be put into that group (as in Set(GROUP()=...). Unlike <variable>OUTBOUND_GROUP</variable>,
498                         however, the variable will be unset after use.</para>
499
500                         <para>This application sets the following channel variables:</para>
501                         <variablelist>
502                                 <variable name="DIALEDTIME">
503                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
504                                 </variable>
505                                 <variable name="ANSWEREDTIME">
506                                         <para>This is the amount of time for actual call.</para>
507                                 </variable>
508                                 <variable name="DIALSTATUS">
509                                         <para>This is the status of the call</para>
510                                         <value name="CHANUNAVAIL" />
511                                         <value name="CONGESTION" />
512                                         <value name="NOANSWER" />
513                                         <value name="BUSY" />
514                                         <value name="ANSWER" />
515                                         <value name="CANCEL" />
516                                         <value name="DONTCALL">
517                                                 For the Privacy and Screening Modes.
518                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
519                                         </value>
520                                         <value name="TORTURE">
521                                                 For the Privacy and Screening Modes.
522                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
523                                         </value>
524                                         <value name="INVALIDARGS" />
525                                 </variable>
526                         </variablelist>
527                 </description>
528         </application>
529         <application name="RetryDial" language="en_US">
530                 <synopsis>
531                         Place a call, retrying on failure allowing an optional exit extension.
532                 </synopsis>
533                 <syntax>
534                         <parameter name="announce" required="true">
535                                 <para>Filename of sound that will be played when no channel can be reached</para>
536                         </parameter>
537                         <parameter name="sleep" required="true">
538                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
539                         </parameter>
540                         <parameter name="retries" required="true">
541                                 <para>Number of retries</para>
542                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
543                         </parameter>
544                         <parameter name="dialargs" required="true">
545                                 <para>Same format as arguments provided to the Dial application</para>
546                         </parameter>
547                 </syntax>
548                 <description>
549                         <para>This application will attempt to place a call using the normal Dial application.
550                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
551                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
552                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
553                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
554                         While waiting to retry a call, a 1 digit extension may be dialed. If that
555                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
556                         one, The call will jump to that extension immediately.
557                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
558                         to the Dial application.</para>
559                 </description>
560         </application>
561  ***/
562
563 static const char app[] = "Dial";
564 static const char rapp[] = "RetryDial";
565
566 enum {
567         OPT_ANNOUNCE =          (1 << 0),
568         OPT_RESETCDR =          (1 << 1),
569         OPT_DTMF_EXIT =         (1 << 2),
570         OPT_SENDDTMF =          (1 << 3),
571         OPT_FORCECLID =         (1 << 4),
572         OPT_GO_ON =             (1 << 5),
573         OPT_CALLEE_HANGUP =     (1 << 6),
574         OPT_CALLER_HANGUP =     (1 << 7),
575         OPT_ORIGINAL_CLID =     (1 << 8),
576         OPT_DURATION_LIMIT =    (1 << 9),
577         OPT_MUSICBACK =         (1 << 10),
578         OPT_CALLEE_MACRO =      (1 << 11),
579         OPT_SCREEN_NOINTRO =    (1 << 12),
580         OPT_SCREEN_NOCALLERID = (1 << 13),
581         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
582         OPT_SCREENING =         (1 << 15),
583         OPT_PRIVACY =           (1 << 16),
584         OPT_RINGBACK =          (1 << 17),
585         OPT_DURATION_STOP =     (1 << 18),
586         OPT_CALLEE_TRANSFER =   (1 << 19),
587         OPT_CALLER_TRANSFER =   (1 << 20),
588         OPT_CALLEE_MONITOR =    (1 << 21),
589         OPT_CALLER_MONITOR =    (1 << 22),
590         OPT_GOTO =              (1 << 23),
591         OPT_OPERMODE =          (1 << 24),
592         OPT_CALLEE_PARK =       (1 << 25),
593         OPT_CALLER_PARK =       (1 << 26),
594         OPT_IGNORE_FORWARDING = (1 << 27),
595         OPT_CALLEE_GOSUB =      (1 << 28),
596         OPT_CALLEE_MIXMONITOR = (1 << 29),
597         OPT_CALLER_MIXMONITOR = (1 << 30),
598 };
599
600 /* flags are now 64 bits, so keep it up! */
601 #define DIAL_STILLGOING      (1LLU << 31)
602 #define DIAL_NOFORWARDHTML   (1LLU << 32)
603 #define DIAL_CALLERID_ABSENT (1LLU << 33) /* TRUE if caller id is not available for connected line. */
604 #define OPT_CANCEL_ELSEWHERE (1LLU << 34)
605 #define OPT_PEER_H           (1LLU << 35)
606 #define OPT_CALLEE_GO_ON     (1LLU << 36)
607 #define OPT_CANCEL_TIMEOUT   (1LLU << 37)
608 #define OPT_FORCE_CID_TAG    (1LLU << 38)
609 #define OPT_FORCE_CID_PRES   (1LLU << 39)
610 #define OPT_CALLER_ANSWER    (1LLU << 40)
611 #define OPT_PREDIAL_CALLEE   (1LLU << 41)
612 #define OPT_PREDIAL_CALLER   (1LLU << 42)
613
614 enum {
615         OPT_ARG_ANNOUNCE = 0,
616         OPT_ARG_SENDDTMF,
617         OPT_ARG_GOTO,
618         OPT_ARG_DURATION_LIMIT,
619         OPT_ARG_MUSICBACK,
620         OPT_ARG_CALLEE_MACRO,
621         OPT_ARG_RINGBACK,
622         OPT_ARG_CALLEE_GOSUB,
623         OPT_ARG_CALLEE_GO_ON,
624         OPT_ARG_PRIVACY,
625         OPT_ARG_DURATION_STOP,
626         OPT_ARG_OPERMODE,
627         OPT_ARG_SCREEN_NOINTRO,
628         OPT_ARG_ORIGINAL_CLID,
629         OPT_ARG_FORCECLID,
630         OPT_ARG_FORCE_CID_TAG,
631         OPT_ARG_FORCE_CID_PRES,
632         OPT_ARG_PREDIAL_CALLEE,
633         OPT_ARG_PREDIAL_CALLER,
634         /* note: this entry _MUST_ be the last one in the enum */
635         OPT_ARG_ARRAY_SIZE,
636 };
637
638 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
639         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
640         AST_APP_OPTION('a', OPT_CALLER_ANSWER),
641         AST_APP_OPTION_ARG('b', OPT_PREDIAL_CALLEE, OPT_ARG_PREDIAL_CALLEE),
642         AST_APP_OPTION_ARG('B', OPT_PREDIAL_CALLER, OPT_ARG_PREDIAL_CALLER),
643         AST_APP_OPTION('C', OPT_RESETCDR),
644         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
645         AST_APP_OPTION('d', OPT_DTMF_EXIT),
646         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
647         AST_APP_OPTION('e', OPT_PEER_H),
648         AST_APP_OPTION_ARG('f', OPT_FORCECLID, OPT_ARG_FORCECLID),
649         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
650         AST_APP_OPTION('g', OPT_GO_ON),
651         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
652         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
653         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
654         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
655         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
656         AST_APP_OPTION('k', OPT_CALLEE_PARK),
657         AST_APP_OPTION('K', OPT_CALLER_PARK),
658         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
659         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
660         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
661         AST_APP_OPTION_ARG('n', OPT_SCREEN_NOINTRO, OPT_ARG_SCREEN_NOINTRO),
662         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
663         AST_APP_OPTION_ARG('o', OPT_ORIGINAL_CLID, OPT_ARG_ORIGINAL_CLID),
664         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
665         AST_APP_OPTION('p', OPT_SCREENING),
666         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
667         AST_APP_OPTION_ARG('r', OPT_RINGBACK, OPT_ARG_RINGBACK),
668         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
669         AST_APP_OPTION_ARG('s', OPT_FORCE_CID_TAG, OPT_ARG_FORCE_CID_TAG),
670         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
671         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
672         AST_APP_OPTION_ARG('u', OPT_FORCE_CID_PRES, OPT_ARG_FORCE_CID_PRES),
673         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
674         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
675         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
676         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
677         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
678         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
679 END_OPTIONS );
680
681 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
682         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
683         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK |  \
684         OPT_CALLER_PARK | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB) && \
685         !ast_channel_audiohooks(chan) && !ast_channel_audiohooks(peer) && \
686         ast_framehook_list_is_empty(ast_channel_framehooks(chan)) && ast_framehook_list_is_empty(ast_channel_framehooks(peer)))
687
688 /*
689  * The list of active channels
690  */
691 struct chanlist {
692         AST_LIST_ENTRY(chanlist) node;
693         struct ast_channel *chan;
694         /*! Channel interface dialing string (is tech/number).  (Stored in stuff[]) */
695         const char *interface;
696         /*! Channel technology name.  (Stored in stuff[]) */
697         const char *tech;
698         /*! Channel device addressing.  (Stored in stuff[]) */
699         const char *number;
700         uint64_t flags;
701         /*! Saved connected party info from an AST_CONTROL_CONNECTED_LINE. */
702         struct ast_party_connected_line connected;
703         /*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
704         unsigned int pending_connected_update:1;
705         struct ast_aoc_decoded *aoc_s_rate_list;
706         /*! The interface, tech, and number strings are stuffed here. */
707         char stuff[0];
708 };
709
710 AST_LIST_HEAD_NOLOCK(dial_head, chanlist);
711
712 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
713
714 static void chanlist_free(struct chanlist *outgoing)
715 {
716         ast_party_connected_line_free(&outgoing->connected);
717         ast_aoc_destroy_decoded(outgoing->aoc_s_rate_list);
718         ast_free(outgoing);
719 }
720
721 static void hanguptree(struct dial_head *out_chans, struct ast_channel *exception, int answered_elsewhere)
722 {
723         /* Hang up a tree of stuff */
724         struct chanlist *outgoing;
725
726         while ((outgoing = AST_LIST_REMOVE_HEAD(out_chans, node))) {
727                 /* Hangup any existing lines we have open */
728                 if (outgoing->chan && (outgoing->chan != exception)) {
729                         if (answered_elsewhere) {
730                                 /* The flag is used for local channel inheritance and stuff */
731                                 ast_set_flag(ast_channel_flags(outgoing->chan), AST_FLAG_ANSWERED_ELSEWHERE);
732                                 /* This is for the channel drivers */
733                                 ast_channel_hangupcause_set(outgoing->chan, AST_CAUSE_ANSWERED_ELSEWHERE);
734                         }
735                         ast_hangup(outgoing->chan);
736                 }
737                 chanlist_free(outgoing);
738         }
739 }
740
741 #define AST_MAX_WATCHERS 256
742
743 /*
744  * argument to handle_cause() and other functions.
745  */
746 struct cause_args {
747         struct ast_channel *chan;
748         int busy;
749         int congestion;
750         int nochan;
751 };
752
753 static void handle_cause(int cause, struct cause_args *num)
754 {
755         struct ast_cdr *cdr = ast_channel_cdr(num->chan);
756
757         switch(cause) {
758         case AST_CAUSE_BUSY:
759                 if (cdr)
760                         ast_cdr_busy(cdr);
761                 num->busy++;
762                 break;
763
764         case AST_CAUSE_CONGESTION:
765                 if (cdr)
766                         ast_cdr_failed(cdr);
767                 num->congestion++;
768                 break;
769
770         case AST_CAUSE_NO_ROUTE_DESTINATION:
771         case AST_CAUSE_UNREGISTERED:
772                 if (cdr)
773                         ast_cdr_failed(cdr);
774                 num->nochan++;
775                 break;
776
777         case AST_CAUSE_NO_ANSWER:
778                 if (cdr) {
779                         ast_cdr_noanswer(cdr);
780                 }
781                 break;
782         case AST_CAUSE_NORMAL_CLEARING:
783                 break;
784
785         default:
786                 num->nochan++;
787                 break;
788         }
789 }
790
791 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
792 {
793         char rexten[2] = { exten, '\0' };
794
795         if (context) {
796                 if (!ast_goto_if_exists(chan, context, rexten, pri))
797                         return 1;
798         } else {
799                 if (!ast_goto_if_exists(chan, ast_channel_context(chan), rexten, pri))
800                         return 1;
801                 else if (!ast_strlen_zero(ast_channel_macrocontext(chan))) {
802                         if (!ast_goto_if_exists(chan, ast_channel_macrocontext(chan), rexten, pri))
803                                 return 1;
804                 }
805         }
806         return 0;
807 }
808
809 /* do not call with chan lock held */
810 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
811 {
812         const char *context;
813         const char *exten;
814
815         ast_channel_lock(chan);
816         context = ast_strdupa(S_OR(ast_channel_macrocontext(chan), ast_channel_context(chan)));
817         exten = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
818         ast_channel_unlock(chan);
819
820         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
821 }
822
823 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
824 {
825         struct ast_channel *chans[] = { src, dst };
826         ast_manager_event_multichan(EVENT_FLAG_CALL, "Dial", 2, chans,
827                 "SubEvent: Begin\r\n"
828                 "Channel: %s\r\n"
829                 "Destination: %s\r\n"
830                 "CallerIDNum: %s\r\n"
831                 "CallerIDName: %s\r\n"
832                 "ConnectedLineNum: %s\r\n"
833                 "ConnectedLineName: %s\r\n"
834                 "UniqueID: %s\r\n"
835                 "DestUniqueID: %s\r\n"
836                 "Dialstring: %s\r\n",
837                 ast_channel_name(src), ast_channel_name(dst),
838                 S_COR(ast_channel_caller(src)->id.number.valid, ast_channel_caller(src)->id.number.str, "<unknown>"),
839                 S_COR(ast_channel_caller(src)->id.name.valid, ast_channel_caller(src)->id.name.str, "<unknown>"),
840                 S_COR(ast_channel_connected(src)->id.number.valid, ast_channel_connected(src)->id.number.str, "<unknown>"),
841                 S_COR(ast_channel_connected(src)->id.name.valid, ast_channel_connected(src)->id.name.str, "<unknown>"),
842                 ast_channel_uniqueid(src), ast_channel_uniqueid(dst),
843                 dialstring ? dialstring : "");
844 }
845
846 static void senddialendevent(struct ast_channel *src, const char *dialstatus)
847 {
848         ast_manager_event(src, EVENT_FLAG_CALL, "Dial",
849                 "SubEvent: End\r\n"
850                 "Channel: %s\r\n"
851                 "UniqueID: %s\r\n"
852                 "DialStatus: %s\r\n",
853                 ast_channel_name(src), ast_channel_uniqueid(src), dialstatus);
854 }
855
856 /*!
857  * helper function for wait_for_answer()
858  *
859  * \param o Outgoing call channel list.
860  * \param num Incoming call channel cause accumulation
861  * \param peerflags Dial option flags
862  * \param single TRUE if there is only one outgoing call.
863  * \param caller_entertained TRUE if the caller is being entertained by MOH or ringback.
864  * \param to Remaining call timeout time.
865  * \param forced_clid OPT_FORCECLID caller id to send
866  * \param stored_clid Caller id representing the called party if needed
867  *
868  * XXX this code is highly suspicious, as it essentially overwrites
869  * the outgoing channel without properly deleting it.
870  *
871  * \todo eventually this function should be intergrated into and replaced by ast_call_forward()
872  */
873 static void do_forward(struct chanlist *o, struct cause_args *num,
874         struct ast_flags64 *peerflags, int single, int caller_entertained, int *to,
875         struct ast_party_id *forced_clid, struct ast_party_id *stored_clid)
876 {
877         char tmpchan[256];
878         struct ast_channel *original = o->chan;
879         struct ast_channel *c = o->chan; /* the winner */
880         struct ast_channel *in = num->chan; /* the input channel */
881         char *stuff;
882         char *tech;
883         int cause;
884         struct ast_party_caller caller;
885
886         ast_copy_string(tmpchan, ast_channel_call_forward(c), sizeof(tmpchan));
887         if ((stuff = strchr(tmpchan, '/'))) {
888                 *stuff++ = '\0';
889                 tech = tmpchan;
890         } else {
891                 const char *forward_context;
892                 ast_channel_lock(c);
893                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
894                 if (ast_strlen_zero(forward_context)) {
895                         forward_context = NULL;
896                 }
897                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", ast_channel_call_forward(c), forward_context ? forward_context : ast_channel_context(c));
898                 ast_channel_unlock(c);
899                 stuff = tmpchan;
900                 tech = "Local";
901         }
902         if (!strcasecmp(tech, "Local")) {
903                 /*
904                  * Drop the connected line update block for local channels since
905                  * this is going to run dialplan and the user can change his
906                  * mind about what connected line information he wants to send.
907                  */
908                 ast_clear_flag64(o, OPT_IGNORE_CONNECTEDLINE);
909         }
910
911         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, ast_channel_call_forward(c), NULL);
912
913         /* Before processing channel, go ahead and check for forwarding */
914         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", ast_channel_name(in), tech, stuff, ast_channel_name(c));
915         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
916         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
917                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", ast_channel_name(in), tech, stuff);
918                 c = o->chan = NULL;
919                 cause = AST_CAUSE_BUSY;
920         } else {
921                 /* Setup parameters */
922                 c = o->chan = ast_request(tech, ast_channel_nativeformats(in), in, stuff, &cause);
923                 if (c) {
924                         if (single && !caller_entertained) {
925                                 ast_channel_make_compatible(o->chan, in);
926                         }
927                         ast_channel_lock_both(in, o->chan);
928                         ast_channel_inherit_variables(in, o->chan);
929                         ast_channel_datastore_inherit(in, o->chan);
930                         ast_channel_unlock(in);
931                         ast_channel_unlock(o->chan);
932                         /* When a call is forwarded, we don't want to track new interfaces
933                          * dialed for CC purposes. Setting the done flag will ensure that
934                          * any Dial operations that happen later won't record CC interfaces.
935                          */
936                         ast_ignore_cc(o->chan);
937                         ast_log(LOG_NOTICE, "Not accepting call completion offers from call-forward recipient %s\n", ast_channel_name(o->chan));
938                 } else
939                         ast_log(LOG_NOTICE,
940                                 "Forwarding failed to create channel to dial '%s/%s' (cause = %d)\n",
941                                 tech, stuff, cause);
942         }
943         if (!c) {
944                 ast_clear_flag64(o, DIAL_STILLGOING);
945                 handle_cause(cause, num);
946                 ast_hangup(original);
947         } else {
948                 ast_channel_lock_both(c, original);
949                 ast_party_redirecting_copy(ast_channel_redirecting(c),
950                         ast_channel_redirecting(original));
951                 ast_channel_unlock(c);
952                 ast_channel_unlock(original);
953
954                 ast_channel_lock_both(c, in);
955
956                 if (single && !caller_entertained && CAN_EARLY_BRIDGE(peerflags, c, in)) {
957                         ast_rtp_instance_early_bridge_make_compatible(c, in);
958                 }
959
960                 if (!ast_channel_redirecting(c)->from.number.valid
961                         || ast_strlen_zero(ast_channel_redirecting(c)->from.number.str)) {
962                         /*
963                          * The call was not previously redirected so it is
964                          * now redirected from this number.
965                          */
966                         ast_party_number_free(&ast_channel_redirecting(c)->from.number);
967                         ast_party_number_init(&ast_channel_redirecting(c)->from.number);
968                         ast_channel_redirecting(c)->from.number.valid = 1;
969                         ast_channel_redirecting(c)->from.number.str =
970                                 ast_strdup(S_OR(ast_channel_macroexten(in), ast_channel_exten(in)));
971                 }
972
973                 ast_channel_dialed(c)->transit_network_select = ast_channel_dialed(in)->transit_network_select;
974
975                 /* Determine CallerID to store in outgoing channel. */
976                 ast_party_caller_set_init(&caller, ast_channel_caller(c));
977                 if (ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
978                         caller.id = *stored_clid;
979                         ast_channel_set_caller_event(c, &caller, NULL);
980                         ast_set_flag64(o, DIAL_CALLERID_ABSENT);
981                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(c)->id.number.valid,
982                         ast_channel_caller(c)->id.number.str, NULL))) {
983                         /*
984                          * The new channel has no preset CallerID number by the channel
985                          * driver.  Use the dialplan extension and hint name.
986                          */
987                         caller.id = *stored_clid;
988                         ast_channel_set_caller_event(c, &caller, NULL);
989                         ast_set_flag64(o, DIAL_CALLERID_ABSENT);
990                 } else {
991                         ast_clear_flag64(o, DIAL_CALLERID_ABSENT);
992                 }
993
994                 /* Determine CallerID for outgoing channel to send. */
995                 if (ast_test_flag64(o, OPT_FORCECLID)) {
996                         struct ast_party_connected_line connected;
997
998                         ast_party_connected_line_init(&connected);
999                         connected.id = *forced_clid;
1000                         ast_party_connected_line_copy(ast_channel_connected(c), &connected);
1001                 } else {
1002                         ast_connected_line_copy_from_caller(ast_channel_connected(c), ast_channel_caller(in));
1003                 }
1004
1005                 ast_channel_accountcode_set(c, ast_channel_accountcode(in));
1006
1007                 ast_channel_appl_set(c, "AppDial");
1008                 ast_channel_data_set(c, "(Outgoing Line)");
1009
1010                 ast_channel_unlock(in);
1011                 if (single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1012                         struct ast_party_redirecting redirecting;
1013
1014                         /*
1015                          * Redirecting updates to the caller make sense only on single
1016                          * calls.
1017                          *
1018                          * We must unlock c before calling
1019                          * ast_channel_redirecting_macro, because we put c into
1020                          * autoservice there.  That is pretty much a guaranteed
1021                          * deadlock.  This is why the handling of c's lock may seem a
1022                          * bit unusual here.
1023                          */
1024                         ast_party_redirecting_init(&redirecting);
1025                         ast_party_redirecting_copy(&redirecting, ast_channel_redirecting(c));
1026                         ast_channel_unlock(c);
1027                         if (ast_channel_redirecting_sub(c, in, &redirecting, 0) &&
1028                                 ast_channel_redirecting_macro(c, in, &redirecting, 1, 0)) {
1029                                 ast_channel_update_redirecting(in, &redirecting, NULL);
1030                         }
1031                         ast_party_redirecting_free(&redirecting);
1032                 } else {
1033                         ast_channel_unlock(c);
1034                 }
1035
1036                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
1037                         *to = -1;
1038                 }
1039
1040                 if (ast_call(c, stuff, 0)) {
1041                         ast_log(LOG_NOTICE, "Forwarding failed to dial '%s/%s'\n",
1042                                 tech, stuff);
1043                         ast_clear_flag64(o, DIAL_STILLGOING);
1044                         ast_hangup(original);
1045                         ast_hangup(c);
1046                         c = o->chan = NULL;
1047                         num->nochan++;
1048                 } else {
1049                         ast_channel_lock_both(c, in);
1050                         senddialevent(in, c, stuff);
1051                         ast_channel_unlock(in);
1052                         ast_channel_unlock(c);
1053                         /* Hangup the original channel now, in case we needed it */
1054                         ast_hangup(original);
1055                 }
1056                 if (single && !caller_entertained) {
1057                         ast_indicate(in, -1);
1058                 }
1059         }
1060 }
1061
1062 /* argument used for some functions. */
1063 struct privacy_args {
1064         int sentringing;
1065         int privdb_val;
1066         char privcid[256];
1067         char privintro[1024];
1068         char status[256];
1069 };
1070
1071 static struct ast_channel *wait_for_answer(struct ast_channel *in,
1072         struct dial_head *out_chans, int *to, struct ast_flags64 *peerflags,
1073         char *opt_args[],
1074         struct privacy_args *pa,
1075         const struct cause_args *num_in, int *result, char *dtmf_progress,
1076         const int ignore_cc,
1077         struct ast_party_id *forced_clid, struct ast_party_id *stored_clid)
1078 {
1079         struct cause_args num = *num_in;
1080         int prestart = num.busy + num.congestion + num.nochan;
1081         int orig = *to;
1082         struct ast_channel *peer = NULL;
1083 #ifdef HAVE_EPOLL
1084         struct chanlist *epollo;
1085 #endif
1086         struct chanlist *outgoing = AST_LIST_FIRST(out_chans);
1087         /* single is set if only one destination is enabled */
1088         int single = outgoing && !AST_LIST_NEXT(outgoing, node);
1089         int caller_entertained = outgoing
1090                 && ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK);
1091         struct ast_party_connected_line connected_caller;
1092         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
1093         int cc_recall_core_id;
1094         int is_cc_recall;
1095         int cc_frame_received = 0;
1096         int num_ringing = 0;
1097
1098         ast_party_connected_line_init(&connected_caller);
1099         if (single) {
1100                 /* Turn off hold music, etc */
1101                 if (!caller_entertained) {
1102                         ast_deactivate_generator(in);
1103                         /* If we are calling a single channel, and not providing ringback or music, */
1104                         /* then, make them compatible for in-band tone purpose */
1105                         if (ast_channel_make_compatible(outgoing->chan, in) < 0) {
1106                                 /* If these channels can not be made compatible, 
1107                                  * there is no point in continuing.  The bridge
1108                                  * will just fail if it gets that far.
1109                                  */
1110                                 *to = -1;
1111                                 strcpy(pa->status, "CONGESTION");
1112                                 ast_cdr_failed(ast_channel_cdr(in));
1113                                 return NULL;
1114                         }
1115                 }
1116
1117                 if (!ast_test_flag64(outgoing, OPT_IGNORE_CONNECTEDLINE)
1118                         && !ast_test_flag64(outgoing, DIAL_CALLERID_ABSENT)) {
1119                         ast_channel_lock(outgoing->chan);
1120                         ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(outgoing->chan));
1121                         ast_channel_unlock(outgoing->chan);
1122                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1123                         if (ast_channel_connected_line_sub(outgoing->chan, in, &connected_caller, 0) &&
1124                                 ast_channel_connected_line_macro(outgoing->chan, in, &connected_caller, 1, 0)) {
1125                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1126                         }
1127                         ast_party_connected_line_free(&connected_caller);
1128                 }
1129         }
1130
1131         is_cc_recall = ast_cc_is_recall(in, &cc_recall_core_id, NULL);
1132
1133 #ifdef HAVE_EPOLL
1134         AST_LIST_TRAVERSE(out_chans, epollo, node) {
1135                 ast_poll_channel_add(in, epollo->chan);
1136         }
1137 #endif
1138
1139         while (*to && !peer) {
1140                 struct chanlist *o;
1141                 int pos = 0; /* how many channels do we handle */
1142                 int numlines = prestart;
1143                 struct ast_channel *winner;
1144                 struct ast_channel *watchers[AST_MAX_WATCHERS];
1145
1146                 watchers[pos++] = in;
1147                 AST_LIST_TRAVERSE(out_chans, o, node) {
1148                         /* Keep track of important channels */
1149                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
1150                                 watchers[pos++] = o->chan;
1151                         numlines++;
1152                 }
1153                 if (pos == 1) { /* only the input channel is available */
1154                         if (numlines == (num.busy + num.congestion + num.nochan)) {
1155                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1156                                 if (num.busy)
1157                                         strcpy(pa->status, "BUSY");
1158                                 else if (num.congestion)
1159                                         strcpy(pa->status, "CONGESTION");
1160                                 else if (num.nochan)
1161                                         strcpy(pa->status, "CHANUNAVAIL");
1162                         } else {
1163                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1164                         }
1165                         *to = 0;
1166                         if (is_cc_recall) {
1167                                 ast_cc_failed(cc_recall_core_id, "Everyone is busy/congested for the recall. How sad");
1168                         }
1169                         return NULL;
1170                 }
1171                 winner = ast_waitfor_n(watchers, pos, to);
1172                 AST_LIST_TRAVERSE(out_chans, o, node) {
1173                         struct ast_frame *f;
1174                         struct ast_channel *c = o->chan;
1175
1176                         if (c == NULL)
1177                                 continue;
1178                         if (ast_test_flag64(o, DIAL_STILLGOING) && ast_channel_state(c) == AST_STATE_UP) {
1179                                 if (!peer) {
1180                                         ast_verb(3, "%s answered %s\n", ast_channel_name(c), ast_channel_name(in));
1181                                         if (!single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1182                                                 if (o->pending_connected_update) {
1183                                                         if (ast_channel_connected_line_sub(c, in, &o->connected, 0) &&
1184                                                                 ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1185                                                                 ast_channel_update_connected_line(in, &o->connected, NULL);
1186                                                         }
1187                                                 } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1188                                                         ast_channel_lock(c);
1189                                                         ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(c));
1190                                                         ast_channel_unlock(c);
1191                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1192                                                         if (ast_channel_connected_line_sub(c, in, &connected_caller, 0) &&
1193                                                                 ast_channel_connected_line_macro(c, in, &connected_caller, 1, 0)) {
1194                                                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1195                                                         }
1196                                                         ast_party_connected_line_free(&connected_caller);
1197                                                 }
1198                                         }
1199                                         if (o->aoc_s_rate_list) {
1200                                                 size_t encoded_size;
1201                                                 struct ast_aoc_encoded *encoded;
1202                                                 if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1203                                                         ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1204                                                         ast_aoc_destroy_encoded(encoded);
1205                                                 }
1206                                         }
1207                                         peer = c;
1208                                         ast_copy_flags64(peerflags, o,
1209                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1210                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1211                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1212                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1213                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1214                                                 DIAL_NOFORWARDHTML);
1215                                         ast_channel_dialcontext_set(c, "");
1216                                         ast_channel_exten_set(c, "");
1217                                 }
1218                                 continue;
1219                         }
1220                         if (c != winner)
1221                                 continue;
1222                         /* here, o->chan == c == winner */
1223                         if (!ast_strlen_zero(ast_channel_call_forward(c))) {
1224                                 pa->sentringing = 0;
1225                                 if (!ignore_cc && (f = ast_read(c))) {
1226                                         if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_CC) {
1227                                                 /* This channel is forwarding the call, and is capable of CC, so
1228                                                  * be sure to add the new device interface to the list
1229                                                  */
1230                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1231                                         }
1232                                         ast_frfree(f);
1233                                 }
1234
1235                                 if (o->pending_connected_update) {
1236                                         /*
1237                                          * Re-seed the chanlist's connected line information with
1238                                          * previously acquired connected line info from the incoming
1239                                          * channel.  The previously acquired connected line info could
1240                                          * have been set through the CONNECTED_LINE dialplan function.
1241                                          */
1242                                         o->pending_connected_update = 0;
1243                                         ast_channel_lock(in);
1244                                         ast_party_connected_line_copy(&o->connected, ast_channel_connected(in));
1245                                         ast_channel_unlock(in);
1246                                 }
1247
1248                                 do_forward(o, &num, peerflags, single, caller_entertained, to,
1249                                         forced_clid, stored_clid);
1250
1251                                 if (single && o->chan
1252                                         && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)
1253                                         && !ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1254                                         ast_channel_lock(o->chan);
1255                                         ast_connected_line_copy_from_caller(&connected_caller,
1256                                                 ast_channel_caller(o->chan));
1257                                         ast_channel_unlock(o->chan);
1258                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1259                                         if (ast_channel_connected_line_sub(o->chan, in, &connected_caller, 0) &&
1260                                                 ast_channel_connected_line_macro(o->chan, in, &connected_caller, 1, 0)) {
1261                                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1262                                         }
1263                                         ast_party_connected_line_free(&connected_caller);
1264                                 }
1265                                 continue;
1266                         }
1267                         f = ast_read(winner);
1268                         if (!f) {
1269                                 ast_channel_hangupcause_set(in, ast_channel_hangupcause(c));
1270 #ifdef HAVE_EPOLL
1271                                 ast_poll_channel_del(in, c);
1272 #endif
1273                                 ast_hangup(c);
1274                                 c = o->chan = NULL;
1275                                 ast_clear_flag64(o, DIAL_STILLGOING);
1276                                 handle_cause(ast_channel_hangupcause(in), &num);
1277                                 continue;
1278                         }
1279                         switch (f->frametype) {
1280                         case AST_FRAME_CONTROL:
1281                                 switch (f->subclass.integer) {
1282                                 case AST_CONTROL_ANSWER:
1283                                         /* This is our guy if someone answered. */
1284                                         if (!peer) {
1285                                                 ast_verb(3, "%s answered %s\n", ast_channel_name(c), ast_channel_name(in));
1286                                                 if (!single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1287                                                         if (o->pending_connected_update) {
1288                                                                 if (ast_channel_connected_line_sub(c, in, &o->connected, 0) &&
1289                                                                         ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1290                                                                         ast_channel_update_connected_line(in, &o->connected, NULL);
1291                                                                 }
1292                                                         } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1293                                                                 ast_channel_lock(c);
1294                                                                 ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(c));
1295                                                                 ast_channel_unlock(c);
1296                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1297                                                                 if (ast_channel_connected_line_sub(c, in, &connected_caller, 0) &&
1298                                                                         ast_channel_connected_line_macro(c, in, &connected_caller, 1, 0)) {
1299                                                                         ast_channel_update_connected_line(in, &connected_caller, NULL);
1300                                                                 }
1301                                                                 ast_party_connected_line_free(&connected_caller);
1302                                                         }
1303                                                 }
1304                                                 if (o->aoc_s_rate_list) {
1305                                                         size_t encoded_size;
1306                                                         struct ast_aoc_encoded *encoded;
1307                                                         if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1308                                                                 ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1309                                                                 ast_aoc_destroy_encoded(encoded);
1310                                                         }
1311                                                 }
1312                                                 peer = c;
1313                                                 if (ast_channel_cdr(peer)) {
1314                                                         ast_channel_cdr(peer)->answer = ast_tvnow();
1315                                                         ast_channel_cdr(peer)->disposition = AST_CDR_ANSWERED;
1316                                                 }
1317                                                 ast_copy_flags64(peerflags, o,
1318                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1319                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1320                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1321                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1322                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1323                                                         DIAL_NOFORWARDHTML);
1324                                                 ast_channel_dialcontext_set(c, "");
1325                                                 ast_channel_exten_set(c, "");
1326                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1327                                                         /* Setup early bridge if appropriate */
1328                                                         ast_channel_early_bridge(in, peer);
1329                                         }
1330                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1331                                         ast_channel_hangupcause_set(in, AST_CAUSE_NORMAL_CLEARING);
1332                                         ast_channel_hangupcause_set(c, AST_CAUSE_NORMAL_CLEARING);
1333                                         break;
1334                                 case AST_CONTROL_BUSY:
1335                                         ast_verb(3, "%s is busy\n", ast_channel_name(c));
1336                                         ast_channel_hangupcause_set(in, ast_channel_hangupcause(c));
1337                                         ast_hangup(c);
1338                                         c = o->chan = NULL;
1339                                         ast_clear_flag64(o, DIAL_STILLGOING);
1340                                         handle_cause(AST_CAUSE_BUSY, &num);
1341                                         break;
1342                                 case AST_CONTROL_CONGESTION:
1343                                         ast_verb(3, "%s is circuit-busy\n", ast_channel_name(c));
1344                                         ast_channel_hangupcause_set(in, ast_channel_hangupcause(c));
1345                                         ast_hangup(c);
1346                                         c = o->chan = NULL;
1347                                         ast_clear_flag64(o, DIAL_STILLGOING);
1348                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1349                                         break;
1350                                 case AST_CONTROL_RINGING:
1351                                         /* This is a tricky area to get right when using a native
1352                                          * CC agent. The reason is that we do the best we can to send only a
1353                                          * single ringing notification to the caller.
1354                                          *
1355                                          * Call completion complicates the logic used here. CCNR is typically
1356                                          * offered during a ringing message. Let's say that party A calls
1357                                          * parties B, C, and D. B and C do not support CC requests, but D
1358                                          * does. If we were to receive a ringing notification from B before
1359                                          * the others, then we would end up sending a ringing message to
1360                                          * A with no CCNR offer present.
1361                                          *
1362                                          * The approach that we have taken is that if we receive a ringing
1363                                          * response from a party and no CCNR offer is present, we need to
1364                                          * wait. Specifically, we need to wait until either a) a called party
1365                                          * offers CCNR in its ringing response or b) all called parties have
1366                                          * responded in some way to our call and none offers CCNR.
1367                                          *
1368                                          * The drawback to this is that if one of the parties has a delayed
1369                                          * response or, god forbid, one just plain doesn't respond to our
1370                                          * outgoing call, then this will result in a significant delay between
1371                                          * when the caller places the call and hears ringback.
1372                                          *
1373                                          * Note also that if CC is disabled for this call, then it is perfectly
1374                                          * fine for ringing frames to get sent through.
1375                                          */
1376                                         ++num_ringing;
1377                                         if (ignore_cc || cc_frame_received || num_ringing == numlines) {
1378                                                 ast_verb(3, "%s is ringing\n", ast_channel_name(c));
1379                                                 /* Setup early media if appropriate */
1380                                                 if (single && !caller_entertained
1381                                                         && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1382                                                         ast_channel_early_bridge(in, c);
1383                                                 }
1384                                                 if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK) && ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
1385                                                         ast_indicate(in, AST_CONTROL_RINGING);
1386                                                         pa->sentringing++;
1387                                                 }
1388                                         }
1389                                         break;
1390                                 case AST_CONTROL_PROGRESS:
1391                                         ast_verb(3, "%s is making progress passing it to %s\n", ast_channel_name(c), ast_channel_name(in));
1392                                         /* Setup early media if appropriate */
1393                                         if (single && !caller_entertained
1394                                                 && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1395                                                 ast_channel_early_bridge(in, c);
1396                                         }
1397                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK)) {
1398                                                 if (single || (!single && !pa->sentringing)) {
1399                                                         ast_indicate(in, AST_CONTROL_PROGRESS);
1400                                                 }
1401                                         }
1402                                         if (!ast_strlen_zero(dtmf_progress)) {
1403                                                 ast_verb(3,
1404                                                         "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n",
1405                                                         dtmf_progress);
1406                                                 ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1407                                         }
1408                                         break;
1409                                 case AST_CONTROL_VIDUPDATE:
1410                                 case AST_CONTROL_SRCUPDATE:
1411                                 case AST_CONTROL_SRCCHANGE:
1412                                         if (!single || caller_entertained) {
1413                                                 break;
1414                                         }
1415                                         ast_verb(3, "%s requested media update control %d, passing it to %s\n",
1416                                                 ast_channel_name(c), f->subclass.integer, ast_channel_name(in));
1417                                         ast_indicate(in, f->subclass.integer);
1418                                         break;
1419                                 case AST_CONTROL_CONNECTED_LINE:
1420                                         if (ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1421                                                 ast_verb(3, "Connected line update to %s prevented.\n", ast_channel_name(in));
1422                                                 break;
1423                                         }
1424                                         if (!single) {
1425                                                 struct ast_party_connected_line connected;
1426
1427                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n",
1428                                                         ast_channel_name(c), ast_channel_name(in));
1429                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1430                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1431                                                 ast_party_connected_line_set(&o->connected, &connected, NULL);
1432                                                 ast_party_connected_line_free(&connected);
1433                                                 o->pending_connected_update = 1;
1434                                                 break;
1435                                         }
1436                                         if (ast_channel_connected_line_sub(c, in, f, 1) &&
1437                                                 ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1438                                                 ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1439                                         }
1440                                         break;
1441                                 case AST_CONTROL_AOC:
1442                                         {
1443                                                 struct ast_aoc_decoded *decoded = ast_aoc_decode(f->data.ptr, f->datalen, o->chan);
1444                                                 if (decoded && (ast_aoc_get_msg_type(decoded) == AST_AOC_S)) {
1445                                                         ast_aoc_destroy_decoded(o->aoc_s_rate_list);
1446                                                         o->aoc_s_rate_list = decoded;
1447                                                 } else {
1448                                                         ast_aoc_destroy_decoded(decoded);
1449                                                 }
1450                                         }
1451                                         break;
1452                                 case AST_CONTROL_REDIRECTING:
1453                                         if (!single) {
1454                                                 /*
1455                                                  * Redirecting updates to the caller make sense only on single
1456                                                  * calls.
1457                                                  */
1458                                                 break;
1459                                         }
1460                                         if (ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1461                                                 ast_verb(3, "Redirecting update to %s prevented.\n", ast_channel_name(in));
1462                                                 break;
1463                                         }
1464                                         ast_verb(3, "%s redirecting info has changed, passing it to %s\n",
1465                                                 ast_channel_name(c), ast_channel_name(in));
1466                                         if (ast_channel_redirecting_sub(c, in, f, 1) &&
1467                                                 ast_channel_redirecting_macro(c, in, f, 1, 1)) {
1468                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1469                                         }
1470                                         pa->sentringing = 0;
1471                                         break;
1472                                 case AST_CONTROL_PROCEEDING:
1473                                         ast_verb(3, "%s is proceeding passing it to %s\n", ast_channel_name(c), ast_channel_name(in));
1474                                         if (single && !caller_entertained
1475                                                 && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1476                                                 ast_channel_early_bridge(in, c);
1477                                         }
1478                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1479                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1480                                         break;
1481                                 case AST_CONTROL_HOLD:
1482                                         /* XXX this should be saved like AST_CONTROL_CONNECTED_LINE for !single || caller_entertained */
1483                                         ast_verb(3, "Call on %s placed on hold\n", ast_channel_name(c));
1484                                         ast_indicate_data(in, AST_CONTROL_HOLD, f->data.ptr, f->datalen);
1485                                         break;
1486                                 case AST_CONTROL_UNHOLD:
1487                                         /* XXX this should be saved like AST_CONTROL_CONNECTED_LINE for !single || caller_entertained */
1488                                         ast_verb(3, "Call on %s left from hold\n", ast_channel_name(c));
1489                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1490                                         break;
1491                                 case AST_CONTROL_OFFHOOK:
1492                                 case AST_CONTROL_FLASH:
1493                                         /* Ignore going off hook and flash */
1494                                         break;
1495                                 case AST_CONTROL_CC:
1496                                         if (!ignore_cc) {
1497                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1498                                                 cc_frame_received = 1;
1499                                         }
1500                                         break;
1501                                 case AST_CONTROL_PVT_CAUSE_CODE:
1502                                         ast_indicate_data(in, AST_CONTROL_PVT_CAUSE_CODE, f->data.ptr, f->datalen);
1503                                         break;
1504                                 case -1:
1505                                         if (single && !caller_entertained) {
1506                                                 ast_verb(3, "%s stopped sounds\n", ast_channel_name(c));
1507                                                 ast_indicate(in, -1);
1508                                                 pa->sentringing = 0;
1509                                         }
1510                                         break;
1511                                 default:
1512                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass.integer);
1513                                         break;
1514                                 }
1515                                 break;
1516                         case AST_FRAME_VOICE:
1517                         case AST_FRAME_IMAGE:
1518                                 if (caller_entertained) {
1519                                         break;
1520                                 }
1521                                 /* Fall through */
1522                         case AST_FRAME_TEXT:
1523                                 if (single && ast_write(in, f)) {
1524                                         ast_log(LOG_WARNING, "Unable to write frametype: %d\n",
1525                                                 f->frametype);
1526                                 }
1527                                 break;
1528                         case AST_FRAME_HTML:
1529                                 if (single && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML)
1530                                         && ast_channel_sendhtml(in, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1531                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1532                                 }
1533                                 break;
1534                         default:
1535                                 break;
1536                         }
1537                         ast_frfree(f);
1538                 } /* end for */
1539                 if (winner == in) {
1540                         struct ast_frame *f = ast_read(in);
1541 #if 0
1542                         if (f && (f->frametype != AST_FRAME_VOICE))
1543                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1544                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1545                                 printf("Hangup received on %s\n", in->name);
1546 #endif
1547                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass.integer == AST_CONTROL_HANGUP))) {
1548                                 /* Got hung up */
1549                                 *to = -1;
1550                                 strcpy(pa->status, "CANCEL");
1551                                 ast_cdr_noanswer(ast_channel_cdr(in));
1552                                 if (f) {
1553                                         if (f->data.uint32) {
1554                                                 ast_channel_hangupcause_set(in, f->data.uint32);
1555                                         }
1556                                         ast_frfree(f);
1557                                 }
1558                                 if (is_cc_recall) {
1559                                         ast_cc_completed(in, "CC completed, although the caller hung up (cancelled)");
1560                                 }
1561                                 return NULL;
1562                         }
1563
1564                         /* now f is guaranteed non-NULL */
1565                         if (f->frametype == AST_FRAME_DTMF) {
1566                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1567                                         const char *context;
1568                                         ast_channel_lock(in);
1569                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1570                                         if (onedigit_goto(in, context, (char) f->subclass.integer, 1)) {
1571                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass.integer);
1572                                                 *to = 0;
1573                                                 ast_cdr_noanswer(ast_channel_cdr(in));
1574                                                 *result = f->subclass.integer;
1575                                                 strcpy(pa->status, "CANCEL");
1576                                                 ast_frfree(f);
1577                                                 ast_channel_unlock(in);
1578                                                 if (is_cc_recall) {
1579                                                         ast_cc_completed(in, "CC completed, but the caller used DTMF to exit");
1580                                                 }
1581                                                 return NULL;
1582                                         }
1583                                         ast_channel_unlock(in);
1584                                 }
1585
1586                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1587                                         detect_disconnect(in, f->subclass.integer, featurecode)) {
1588                                         ast_verb(3, "User requested call disconnect.\n");
1589                                         *to = 0;
1590                                         strcpy(pa->status, "CANCEL");
1591                                         ast_cdr_noanswer(ast_channel_cdr(in));
1592                                         ast_frfree(f);
1593                                         if (is_cc_recall) {
1594                                                 ast_cc_completed(in, "CC completed, but the caller hung up with DTMF");
1595                                         }
1596                                         return NULL;
1597                                 }
1598                         }
1599
1600                         /* Send the frame from the in channel to all outgoing channels. */
1601                         AST_LIST_TRAVERSE(out_chans, o, node) {
1602                                 if (!o->chan || !ast_test_flag64(o, DIAL_STILLGOING)) {
1603                                         /* This outgoing channel has died so don't send the frame to it. */
1604                                         continue;
1605                                 }
1606                                 switch (f->frametype) {
1607                                 case AST_FRAME_HTML:
1608                                         /* Forward HTML stuff */
1609                                         if (!ast_test_flag64(o, DIAL_NOFORWARDHTML)
1610                                                 && ast_channel_sendhtml(o->chan, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1611                                                 ast_log(LOG_WARNING, "Unable to send URL\n");
1612                                         }
1613                                         break;
1614                                 case AST_FRAME_VOICE:
1615                                 case AST_FRAME_IMAGE:
1616                                         if (!single || caller_entertained) {
1617                                                 /*
1618                                                  * We are calling multiple parties or caller is being
1619                                                  * entertained and has thus not been made compatible.
1620                                                  * No need to check any other called parties.
1621                                                  */
1622                                                 goto skip_frame;
1623                                         }
1624                                         /* Fall through */
1625                                 case AST_FRAME_TEXT:
1626                                 case AST_FRAME_DTMF_BEGIN:
1627                                 case AST_FRAME_DTMF_END:
1628                                         if (ast_write(o->chan, f)) {
1629                                                 ast_log(LOG_WARNING, "Unable to forward frametype: %d\n",
1630                                                         f->frametype);
1631                                         }
1632                                         break;
1633                                 case AST_FRAME_CONTROL:
1634                                         switch (f->subclass.integer) {
1635                                         case AST_CONTROL_HOLD:
1636                                                 ast_verb(3, "Call on %s placed on hold\n", ast_channel_name(o->chan));
1637                                                 ast_indicate_data(o->chan, AST_CONTROL_HOLD, f->data.ptr, f->datalen);
1638                                                 break;
1639                                         case AST_CONTROL_UNHOLD:
1640                                                 ast_verb(3, "Call on %s left from hold\n", ast_channel_name(o->chan));
1641                                                 ast_indicate(o->chan, AST_CONTROL_UNHOLD);
1642                                                 break;
1643                                         case AST_CONTROL_VIDUPDATE:
1644                                         case AST_CONTROL_SRCUPDATE:
1645                                         case AST_CONTROL_SRCCHANGE:
1646                                                 if (!single || caller_entertained) {
1647                                                         /*
1648                                                          * We are calling multiple parties or caller is being
1649                                                          * entertained and has thus not been made compatible.
1650                                                          * No need to check any other called parties.
1651                                                          */
1652                                                         goto skip_frame;
1653                                                 }
1654                                                 ast_verb(3, "%s requested media update control %d, passing it to %s\n",
1655                                                         ast_channel_name(in), f->subclass.integer, ast_channel_name(o->chan));
1656                                                 ast_indicate(o->chan, f->subclass.integer);
1657                                                 break;
1658                                         case AST_CONTROL_CONNECTED_LINE:
1659                                                 if (ast_channel_connected_line_sub(in, o->chan, f, 1) &&
1660                                                         ast_channel_connected_line_macro(in, o->chan, f, 0, 1)) {
1661                                                         ast_indicate_data(o->chan, f->subclass.integer, f->data.ptr, f->datalen);
1662                                                 }
1663                                                 break;
1664                                         case AST_CONTROL_REDIRECTING:
1665                                                 if (ast_channel_redirecting_sub(in, o->chan, f, 1) &&
1666                                                         ast_channel_redirecting_macro(in, o->chan, f, 0, 1)) {
1667                                                         ast_indicate_data(o->chan, f->subclass.integer, f->data.ptr, f->datalen);
1668                                                 }
1669                                                 break;
1670                                         default:
1671                                                 /* We are not going to do anything with this frame. */
1672                                                 goto skip_frame;
1673                                         }
1674                                         break;
1675                                 default:
1676                                         /* We are not going to do anything with this frame. */
1677                                         goto skip_frame;
1678                                 }
1679                         }
1680 skip_frame:;
1681                         ast_frfree(f);
1682                 }
1683                 if (!*to)
1684                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1685                 if (!*to || ast_check_hangup(in))
1686                         ast_cdr_noanswer(ast_channel_cdr(in));
1687         }
1688
1689 #ifdef HAVE_EPOLL
1690         AST_LIST_TRAVERSE(out_chans, epollo, node) {
1691                 if (epollo->chan)
1692                         ast_poll_channel_del(in, epollo->chan);
1693         }
1694 #endif
1695
1696         if (is_cc_recall) {
1697                 ast_cc_completed(in, "Recall completed!");
1698         }
1699         return peer;
1700 }
1701
1702 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1703 {
1704         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1705         struct ast_call_feature feature = { 0, };
1706         int res;
1707
1708         ast_str_append(&featurecode, 1, "%c", code);
1709
1710         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1711
1712         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1713                 ast_str_reset(featurecode);
1714         }
1715         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1716                 return 1;
1717         }
1718
1719         return 0;
1720 }
1721
1722 /* returns true if there is a valid privacy reply */
1723 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1724 {
1725         if (res < '1')
1726                 return 0;
1727         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1728                 return 1;
1729         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1730                 return 1;
1731         return 0;
1732 }
1733
1734 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1735         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1736 {
1737
1738         int res2;
1739         int loopcount = 0;
1740
1741         /* Get the user's intro, store it in priv-callerintros/$CID,
1742            unless it is already there-- this should be done before the
1743            call is actually dialed  */
1744
1745         /* all ring indications and moh for the caller has been halted as soon as the
1746            target extension was picked up. We are going to have to kill some
1747            time and make the caller believe the peer hasn't picked up yet */
1748
1749         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1750                 char *original_moh = ast_strdupa(ast_channel_musicclass(chan));
1751                 ast_indicate(chan, -1);
1752                 ast_channel_musicclass_set(chan, opt_args[OPT_ARG_MUSICBACK]);
1753                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1754                 ast_channel_musicclass_set(chan, original_moh);
1755         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1756                 ast_indicate(chan, AST_CONTROL_RINGING);
1757                 pa->sentringing++;
1758         }
1759
1760         /* Start autoservice on the other chan ?? */
1761         res2 = ast_autoservice_start(chan);
1762         /* Now Stream the File */
1763         for (loopcount = 0; loopcount < 3; loopcount++) {
1764                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1765                         break;
1766                 if (!res2) /* on timeout, play the message again */
1767                         res2 = ast_play_and_wait(peer, "priv-callpending");
1768                 if (!valid_priv_reply(opts, res2))
1769                         res2 = 0;
1770                 /* priv-callpending script:
1771                    "I have a caller waiting, who introduces themselves as:"
1772                 */
1773                 if (!res2)
1774                         res2 = ast_play_and_wait(peer, pa->privintro);
1775                 if (!valid_priv_reply(opts, res2))
1776                         res2 = 0;
1777                 /* now get input from the called party, as to their choice */
1778                 if (!res2) {
1779                         /* XXX can we have both, or they are mutually exclusive ? */
1780                         if (ast_test_flag64(opts, OPT_PRIVACY))
1781                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1782                         if (ast_test_flag64(opts, OPT_SCREENING))
1783                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1784                 }
1785                 /*! \page DialPrivacy Dial Privacy scripts
1786                 \par priv-callee-options script:
1787                         "Dial 1 if you wish this caller to reach you directly in the future,
1788                                 and immediately connect to their incoming call
1789                          Dial 2 if you wish to send this caller to voicemail now and
1790                                 forevermore.
1791                          Dial 3 to send this caller to the torture menus, now and forevermore.
1792                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1793                          Dial 5 to allow this caller to come straight thru to you in the future,
1794                                 but right now, just this once, send them to voicemail."
1795                 \par screen-callee-options script:
1796                         "Dial 1 if you wish to immediately connect to the incoming call
1797                          Dial 2 if you wish to send this caller to voicemail.
1798                          Dial 3 to send this caller to the torture menus.
1799                          Dial 4 to send this caller to a simple "go away" menu.
1800                 */
1801                 if (valid_priv_reply(opts, res2))
1802                         break;
1803                 /* invalid option */
1804                 res2 = ast_play_and_wait(peer, "vm-sorry");
1805         }
1806
1807         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1808                 ast_moh_stop(chan);
1809         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1810                 ast_indicate(chan, -1);
1811                 pa->sentringing = 0;
1812         }
1813         ast_autoservice_stop(chan);
1814         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1815                 /* map keypresses to various things, the index is res2 - '1' */
1816                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1817                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1818                 int i = res2 - '1';
1819                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1820                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1821                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1822         }
1823         switch (res2) {
1824         case '1':
1825                 break;
1826         case '2':
1827                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1828                 break;
1829         case '3':
1830                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1831                 break;
1832         case '4':
1833                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1834                 break;
1835         case '5':
1836                 /* XXX should we set status to DENY ? */
1837                 if (ast_test_flag64(opts, OPT_PRIVACY))
1838                         break;
1839                 /* if not privacy, then 5 is the same as "default" case */
1840         default: /* bad input or -1 if failure to start autoservice */
1841                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1842                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1843                           or,... put 'em thru to voicemail. */
1844                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1845                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1846                 /* XXX should we set status to DENY ? */
1847                 /* XXX what about the privacy flags ? */
1848                 break;
1849         }
1850
1851         if (res2 == '1') { /* the only case where we actually connect */
1852                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1853                    just clog things up, and it's not useful information, not being tied to a CID */
1854                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1855                         ast_filedelete(pa->privintro, NULL);
1856                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1857                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1858                         else
1859                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1860                 }
1861                 return 0; /* the good exit path */
1862         } else {
1863                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1864                 return -1;
1865         }
1866 }
1867
1868 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1869 static int setup_privacy_args(struct privacy_args *pa,
1870         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1871 {
1872         char callerid[60];
1873         int res;
1874         char *l;
1875
1876         if (ast_channel_caller(chan)->id.number.valid
1877                 && !ast_strlen_zero(ast_channel_caller(chan)->id.number.str)) {
1878                 l = ast_strdupa(ast_channel_caller(chan)->id.number.str);
1879                 ast_shrink_phone_number(l);
1880                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1881                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1882                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1883                 } else {
1884                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1885                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1886                 }
1887         } else {
1888                 char *tnam, *tn2;
1889
1890                 tnam = ast_strdupa(ast_channel_name(chan));
1891                 /* clean the channel name so slashes don't try to end up in disk file name */
1892                 for (tn2 = tnam; *tn2; tn2++) {
1893                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1894                                 *tn2 = '=';
1895                 }
1896                 ast_verb(3, "Privacy-- callerid is empty\n");
1897
1898                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", ast_channel_exten(chan), tnam);
1899                 l = callerid;
1900                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1901         }
1902
1903         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1904
1905         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1906                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1907                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1908                 pa->privdb_val = AST_PRIVACY_ALLOW;
1909         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1910                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1911         }
1912         
1913         if (pa->privdb_val == AST_PRIVACY_DENY) {
1914                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1915                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1916                 return 0;
1917         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1918                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1919                 return 0; /* Is this right? */
1920         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1921                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1922                 return 0; /* is this right??? */
1923         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1924                 /* Get the user's intro, store it in priv-callerintros/$CID,
1925                    unless it is already there-- this should be done before the
1926                    call is actually dialed  */
1927
1928                 /* make sure the priv-callerintros dir actually exists */
1929                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1930                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1931                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1932                         return -1;
1933                 }
1934
1935                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1936                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1937                         /* the DELUX version of this code would allow this caller the
1938                            option to hear and retape their previously recorded intro.
1939                         */
1940                 } else {
1941                         int duration; /* for feedback from play_and_wait */
1942                         /* the file doesn't exist yet. Let the caller submit his
1943                            vocal intro for posterity */
1944                         /* priv-recordintro script:
1945
1946                            "At the tone, please say your name:"
1947
1948                         */
1949                         int silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1950                         ast_answer(chan);
1951                         res = ast_play_and_record(chan, "priv-recordintro", pa->privintro, 4, "sln", &duration, NULL, silencethreshold, 2000, 0);  /* NOTE: I've reduced the total time to 4 sec */
1952                                                                         /* don't think we'll need a lock removed, we took care of
1953                                                                            conflicts by naming the pa.privintro file */
1954                         if (res == -1) {
1955                                 /* Delete the file regardless since they hung up during recording */
1956                                 ast_filedelete(pa->privintro, NULL);
1957                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1958                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1959                                 else
1960                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1961                                 return -1;
1962                         }
1963                         if (!ast_streamfile(chan, "vm-dialout", ast_channel_language(chan)) )
1964                                 ast_waitstream(chan, "");
1965                 }
1966         }
1967         return 1; /* success */
1968 }
1969
1970 static void end_bridge_callback(void *data)
1971 {
1972         char buf[80];
1973         time_t end;
1974         struct ast_channel *chan = data;
1975
1976         if (!ast_channel_cdr(chan)) {
1977                 return;
1978         }
1979
1980         time(&end);
1981
1982         ast_channel_lock(chan);
1983         if (ast_channel_cdr(chan)->answer.tv_sec) {
1984                 snprintf(buf, sizeof(buf), "%ld", (long) end - ast_channel_cdr(chan)->answer.tv_sec);
1985                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1986         }
1987
1988         if (ast_channel_cdr(chan)->start.tv_sec) {
1989                 snprintf(buf, sizeof(buf), "%ld", (long) end - ast_channel_cdr(chan)->start.tv_sec);
1990                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1991         }
1992         ast_channel_unlock(chan);
1993 }
1994
1995 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1996         bconfig->end_bridge_callback_data = originator;
1997 }
1998
1999 static int dial_handle_playtones(struct ast_channel *chan, const char *data)
2000 {
2001         struct ast_tone_zone_sound *ts = NULL;
2002         int res;
2003         const char *str = data;
2004
2005         if (ast_strlen_zero(str)) {
2006                 ast_debug(1,"Nothing to play\n");
2007                 return -1;
2008         }
2009
2010         ts = ast_get_indication_tone(ast_channel_zone(chan), str);
2011
2012         if (ts && ts->data[0]) {
2013                 res = ast_playtones_start(chan, 0, ts->data, 0);
2014         } else {
2015                 res = -1;
2016         }
2017
2018         if (ts) {
2019                 ts = ast_tone_zone_sound_unref(ts);
2020         }
2021
2022         if (res) {
2023                 ast_log(LOG_WARNING, "Unable to start playtone \'%s\'\n", str);
2024         }
2025
2026         return res;
2027 }
2028
2029 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
2030 {
2031         int res = -1; /* default: error */
2032         char *rest, *cur; /* scan the list of destinations */
2033         struct dial_head out_chans = AST_LIST_HEAD_NOLOCK_INIT_VALUE; /* list of destinations */
2034         struct chanlist *outgoing;
2035         struct chanlist *tmp;
2036         struct ast_channel *peer;
2037         int to; /* timeout */
2038         struct cause_args num = { chan, 0, 0, 0 };
2039         int cause;
2040
2041         struct ast_bridge_config config = { { 0, } };
2042         struct timeval calldurationlimit = { 0, };
2043         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
2044         struct privacy_args pa = {
2045                 .sentringing = 0,
2046                 .privdb_val = 0,
2047                 .status = "INVALIDARGS",
2048         };
2049         int sentringing = 0, moh = 0;
2050         const char *outbound_group = NULL;
2051         int result = 0;
2052         char *parse;
2053         int opermode = 0;
2054         int delprivintro = 0;
2055         AST_DECLARE_APP_ARGS(args,
2056                 AST_APP_ARG(peers);
2057                 AST_APP_ARG(timeout);
2058                 AST_APP_ARG(options);
2059                 AST_APP_ARG(url);
2060         );
2061         struct ast_flags64 opts = { 0, };
2062         char *opt_args[OPT_ARG_ARRAY_SIZE];
2063         struct ast_datastore *datastore = NULL;
2064         int fulldial = 0, num_dialed = 0;
2065         int ignore_cc = 0;
2066         char device_name[AST_CHANNEL_NAME];
2067         char forced_clid_name[AST_MAX_EXTENSION];
2068         char stored_clid_name[AST_MAX_EXTENSION];
2069         int force_forwards_only;        /*!< TRUE if force CallerID on call forward only. Legacy behaviour.*/
2070         /*!
2071          * \brief Forced CallerID party information to send.
2072          * \note This will not have any malloced strings so do not free it.
2073          */
2074         struct ast_party_id forced_clid;
2075         /*!
2076          * \brief Stored CallerID information if needed.
2077          *
2078          * \note If OPT_ORIGINAL_CLID set then this is the o option
2079          * CallerID.  Otherwise it is the dialplan extension and hint
2080          * name.
2081          *
2082          * \note This will not have any malloced strings so do not free it.
2083          */
2084         struct ast_party_id stored_clid;
2085         /*!
2086          * \brief CallerID party information to store.
2087          * \note This will not have any malloced strings so do not free it.
2088          */
2089         struct ast_party_caller caller;
2090
2091         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
2092         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
2093         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
2094         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
2095         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
2096         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
2097
2098         if (ast_strlen_zero(data)) {
2099                 ast_log(LOG_WARNING, "Dial requires an argument (technology/resource)\n");
2100                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2101                 return -1;
2102         }
2103
2104         parse = ast_strdupa(data);
2105
2106         AST_STANDARD_APP_ARGS(args, parse);
2107
2108         if (!ast_strlen_zero(args.options) &&
2109                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
2110                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2111                 goto done;
2112         }
2113
2114         if (ast_strlen_zero(args.peers)) {
2115                 ast_log(LOG_WARNING, "Dial requires an argument (technology/resource)\n");
2116                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2117                 goto done;
2118         }
2119
2120         if (ast_cc_call_init(chan, &ignore_cc)) {
2121                 goto done;
2122         }
2123
2124         if (ast_test_flag64(&opts, OPT_SCREEN_NOINTRO) && !ast_strlen_zero(opt_args[OPT_ARG_SCREEN_NOINTRO])) {
2125                 delprivintro = atoi(opt_args[OPT_ARG_SCREEN_NOINTRO]);
2126
2127                 if (delprivintro < 0 || delprivintro > 1) {
2128                         ast_log(LOG_WARNING, "Unknown argument %d specified to n option, ignoring\n", delprivintro);
2129                         delprivintro = 0;
2130                 }
2131         }
2132
2133         if (!ast_test_flag64(&opts, OPT_RINGBACK)) {
2134                 opt_args[OPT_ARG_RINGBACK] = NULL;
2135         }
2136
2137         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
2138                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
2139                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
2140         }
2141
2142         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
2143                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
2144                 if (!calldurationlimit.tv_sec) {
2145                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
2146                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2147                         goto done;
2148                 }
2149                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
2150         }
2151
2152         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
2153                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
2154                 dtmfcalled = strsep(&dtmf_progress, ":");
2155                 dtmfcalling = strsep(&dtmf_progress, ":");
2156         }
2157
2158         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
2159                 if (ast_bridge_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
2160                         goto done;
2161         }
2162
2163         /* Setup the forced CallerID information to send if used. */
2164         ast_party_id_init(&forced_clid);
2165         force_forwards_only = 0;
2166         if (ast_test_flag64(&opts, OPT_FORCECLID)) {
2167                 if (ast_strlen_zero(opt_args[OPT_ARG_FORCECLID])) {
2168                         ast_channel_lock(chan);
2169                         forced_clid.number.str = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
2170                         ast_channel_unlock(chan);
2171                         forced_clid_name[0] = '\0';
2172                         forced_clid.name.str = (char *) get_cid_name(forced_clid_name,
2173                                 sizeof(forced_clid_name), chan);
2174                         force_forwards_only = 1;
2175                 } else {
2176                         /* Note: The opt_args[OPT_ARG_FORCECLID] string value is altered here. */
2177                         ast_callerid_parse(opt_args[OPT_ARG_FORCECLID], &forced_clid.name.str,
2178                                 &forced_clid.number.str);
2179                 }
2180                 if (!ast_strlen_zero(forced_clid.name.str)) {
2181                         forced_clid.name.valid = 1;
2182                 }
2183                 if (!ast_strlen_zero(forced_clid.number.str)) {
2184                         forced_clid.number.valid = 1;
2185                 }
2186         }
2187         if (ast_test_flag64(&opts, OPT_FORCE_CID_TAG)
2188                 && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_TAG])) {
2189                 forced_clid.tag = opt_args[OPT_ARG_FORCE_CID_TAG];
2190         }
2191         forced_clid.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
2192         if (ast_test_flag64(&opts, OPT_FORCE_CID_PRES)
2193                 && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_PRES])) {
2194                 int pres;
2195
2196                 pres = ast_parse_caller_presentation(opt_args[OPT_ARG_FORCE_CID_PRES]);
2197                 if (0 <= pres) {
2198                         forced_clid.number.presentation = pres;
2199                 }
2200         }
2201
2202         /* Setup the stored CallerID information if needed. */
2203         ast_party_id_init(&stored_clid);
2204         if (ast_test_flag64(&opts, OPT_ORIGINAL_CLID)) {
2205                 if (ast_strlen_zero(opt_args[OPT_ARG_ORIGINAL_CLID])) {
2206                         ast_channel_lock(chan);
2207                         ast_party_id_set_init(&stored_clid, &ast_channel_caller(chan)->id);
2208                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.name.str)) {
2209                                 stored_clid.name.str = ast_strdupa(ast_channel_caller(chan)->id.name.str);
2210                         }
2211                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.number.str)) {
2212                                 stored_clid.number.str = ast_strdupa(ast_channel_caller(chan)->id.number.str);
2213                         }
2214                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.subaddress.str)) {
2215                                 stored_clid.subaddress.str = ast_strdupa(ast_channel_caller(chan)->id.subaddress.str);
2216                         }
2217                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.tag)) {
2218                                 stored_clid.tag = ast_strdupa(ast_channel_caller(chan)->id.tag);
2219                         }
2220                         ast_channel_unlock(chan);
2221                 } else {
2222                         /* Note: The opt_args[OPT_ARG_ORIGINAL_CLID] string value is altered here. */
2223                         ast_callerid_parse(opt_args[OPT_ARG_ORIGINAL_CLID], &stored_clid.name.str,
2224                                 &stored_clid.number.str);
2225                         if (!ast_strlen_zero(stored_clid.name.str)) {
2226                                 stored_clid.name.valid = 1;
2227                         }
2228                         if (!ast_strlen_zero(stored_clid.number.str)) {
2229                                 stored_clid.number.valid = 1;
2230                         }
2231                 }
2232         } else {
2233                 /*
2234                  * In case the new channel has no preset CallerID number by the
2235                  * channel driver, setup the dialplan extension and hint name.
2236                  */
2237                 stored_clid_name[0] = '\0';
2238                 stored_clid.name.str = (char *) get_cid_name(stored_clid_name,
2239                         sizeof(stored_clid_name), chan);
2240                 if (ast_strlen_zero(stored_clid.name.str)) {
2241                         stored_clid.name.str = NULL;
2242                 } else {
2243                         stored_clid.name.valid = 1;
2244                 }
2245                 ast_channel_lock(chan);
2246                 stored_clid.number.str = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
2247                 stored_clid.number.valid = 1;
2248                 ast_channel_unlock(chan);
2249         }
2250
2251         if (ast_test_flag64(&opts, OPT_RESETCDR) && ast_channel_cdr(chan))
2252                 ast_cdr_reset(ast_channel_cdr(chan), NULL);
2253         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
2254                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(ast_channel_exten(chan));
2255
2256         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
2257                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
2258                 if (res <= 0)
2259                         goto out;
2260                 res = -1; /* reset default */
2261         }
2262
2263         if (continue_exec)
2264                 *continue_exec = 0;
2265
2266         /* If a channel group has been specified, get it for use when we create peer channels */
2267
2268         ast_channel_lock(chan);
2269         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
2270                 outbound_group = ast_strdupa(outbound_group);
2271                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
2272         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
2273                 outbound_group = ast_strdupa(outbound_group);
2274         }
2275         ast_channel_unlock(chan);
2276
2277         /* Set per dial instance flags.  These flags are also passed back to RetryDial. */
2278         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID
2279                 | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_CANCEL_TIMEOUT
2280                 | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB | OPT_FORCECLID);
2281
2282         /* PREDIAL: Run gosub on the caller's channel */
2283         if (ast_test_flag64(&opts, OPT_PREDIAL_CALLER)
2284                 && !ast_strlen_zero(opt_args[OPT_ARG_PREDIAL_CALLER])) {
2285                 ast_replace_subargument_delimiter(opt_args[OPT_ARG_PREDIAL_CALLER]);
2286                 ast_app_exec_sub(NULL, chan, opt_args[OPT_ARG_PREDIAL_CALLER]);
2287         }
2288
2289         /* loop through the list of dial destinations */
2290         rest = args.peers;
2291         while ((cur = strsep(&rest, "&")) ) {
2292                 struct ast_channel *tc; /* channel for this destination */
2293                 /* Get a technology/resource pair */
2294                 char *number = cur;
2295                 char *tech = strsep(&number, "/");
2296                 size_t tech_len;
2297                 size_t number_len;
2298                 /* find if we already dialed this interface */
2299                 struct ast_dialed_interface *di;
2300                 AST_LIST_HEAD(,ast_dialed_interface) *dialed_interfaces;
2301
2302                 num_dialed++;
2303                 if (ast_strlen_zero(number)) {
2304                         ast_log(LOG_WARNING, "Dial argument takes format (technology/resource)\n");
2305                         goto out;
2306                 }
2307
2308                 tech_len = strlen(tech) + 1;
2309                 number_len = strlen(number) + 1;
2310                 tmp = ast_calloc(1, sizeof(*tmp) + (2 * tech_len) + number_len);
2311                 if (!tmp) {
2312                         goto out;
2313                 }
2314
2315                 /* Save tech, number, and interface. */
2316                 cur = tmp->stuff;
2317                 strcpy(cur, tech);
2318                 tmp->tech = cur;
2319                 cur += tech_len;
2320                 strcpy(cur, tech);
2321                 cur[tech_len - 1] = '/';
2322                 tmp->interface = cur;
2323                 cur += tech_len;
2324                 strcpy(cur, number);
2325                 tmp->number = cur;
2326
2327                 if (opts.flags) {
2328                         /* Set per outgoing call leg options. */
2329                         ast_copy_flags64(tmp, &opts,
2330                                 OPT_CANCEL_ELSEWHERE |
2331                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
2332                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
2333                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
2334                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
2335                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
2336                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID | OPT_IGNORE_CONNECTEDLINE);
2337                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
2338                 }
2339
2340                 /* Request the peer */
2341
2342                 ast_channel_lock(chan);
2343                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
2344                 /*
2345                  * Seed the chanlist's connected line information with previously
2346                  * acquired connected line info from the incoming channel.  The
2347                  * previously acquired connected line info could have been set
2348                  * through the CONNECTED_LINE dialplan function.
2349                  */
2350                 ast_party_connected_line_copy(&tmp->connected, ast_channel_connected(chan));
2351                 ast_channel_unlock(chan);
2352
2353                 if (datastore)
2354                         dialed_interfaces = datastore->data;
2355                 else {
2356                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
2357                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
2358                                 chanlist_free(tmp);
2359                                 goto out;
2360                         }
2361                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
2362
2363                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
2364                                 ast_datastore_free(datastore);
2365                                 chanlist_free(tmp);
2366                                 goto out;
2367                         }
2368
2369                         datastore->data = dialed_interfaces;
2370                         AST_LIST_HEAD_INIT(dialed_interfaces);
2371
2372                         ast_channel_lock(chan);
2373                         ast_channel_datastore_add(chan, datastore);
2374                         ast_channel_unlock(chan);
2375                 }
2376
2377                 AST_LIST_LOCK(dialed_interfaces);
2378                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
2379                         if (!strcasecmp(di->interface, tmp->interface)) {
2380                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
2381                                         di->interface);
2382                                 break;
2383                         }
2384                 }
2385                 AST_LIST_UNLOCK(dialed_interfaces);
2386                 if (di) {
2387                         fulldial++;
2388                         chanlist_free(tmp);
2389                         continue;
2390                 }
2391
2392                 /* It is always ok to dial a Local interface.  We only keep track of
2393                  * which "real" interfaces have been dialed.  The Local channel will
2394                  * inherit this list so that if it ends up dialing a real interface,
2395                  * it won't call one that has already been called. */
2396                 if (strcasecmp(tmp->tech, "Local")) {
2397                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(tmp->interface)))) {
2398                                 chanlist_free(tmp);
2399                                 goto out;
2400                         }
2401                         strcpy(di->interface, tmp->interface);
2402
2403                         AST_LIST_LOCK(dialed_interfaces);
2404                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
2405                         AST_LIST_UNLOCK(dialed_interfaces);
2406                 }
2407
2408                 tc = ast_request(tmp->tech, ast_channel_nativeformats(chan), chan, tmp->number, &cause);
2409                 if (!tc) {
2410                         /* If we can't, just go on to the next call */
2411                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
2412                                 tmp->tech, cause, ast_cause2str(cause));
2413                         handle_cause(cause, &num);
2414                         if (!rest) {
2415                                 /* we are on the last destination */
2416                                 ast_channel_hangupcause_set(chan, cause);
2417                         }
2418                         if (!ignore_cc && (cause == AST_CAUSE_BUSY || cause == AST_CAUSE_CONGESTION)) {
2419                                 if (!ast_cc_callback(chan, tmp->tech, tmp->number, ast_cc_busy_interface)) {
2420                                         ast_cc_extension_monitor_add_dialstring(chan, tmp->interface, "");
2421                                 }
2422                         }
2423                         chanlist_free(tmp);
2424                         continue;
2425                 }
2426                 ast_channel_get_device_name(tc, device_name, sizeof(device_name));
2427                 if (!ignore_cc) {
2428                         ast_cc_extension_monitor_add_dialstring(chan, tmp->interface, device_name);
2429                 }
2430                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", tmp->number);
2431
2432                 ast_channel_lock_both(tc, chan);
2433
2434                 /* Setup outgoing SDP to match incoming one */
2435                 if (!AST_LIST_FIRST(&out_chans) && !rest && CAN_EARLY_BRIDGE(peerflags, chan, tc)) {
2436                         /* We are on the only destination. */
2437                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
2438                 }
2439                 
2440                 /* Inherit specially named variables from parent channel */
2441                 ast_channel_inherit_variables(chan, tc);
2442                 ast_channel_datastore_inherit(chan, tc);
2443
2444                 ast_channel_appl_set(tc, "AppDial");
2445                 ast_channel_data_set(tc, "(Outgoing Line)");
2446                 memset(ast_channel_whentohangup(tc), 0, sizeof(*ast_channel_whentohangup(tc)));
2447
2448                 /* Determine CallerID to store in outgoing channel. */
2449                 ast_party_caller_set_init(&caller, ast_channel_caller(tc));
2450                 if (ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
2451                         caller.id = stored_clid;
2452                         ast_channel_set_caller_event(tc, &caller, NULL);
2453                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2454                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(tc)->id.number.valid,
2455                         ast_channel_caller(tc)->id.number.str, NULL))) {
2456                         /*
2457                          * The new channel has no preset CallerID number by the channel
2458                          * driver.  Use the dialplan extension and hint name.
2459                          */
2460                         caller.id = stored_clid;
2461                         if (!caller.id.name.valid
2462                                 && !ast_strlen_zero(S_COR(ast_channel_connected(chan)->id.name.valid,
2463                                         ast_channel_connected(chan)->id.name.str, NULL))) {
2464                                 /*
2465                                  * No hint name available.  We have a connected name supplied by
2466                                  * the dialplan we can use instead.
2467                                  */
2468                                 caller.id.name.valid = 1;
2469                                 caller.id.name = ast_channel_connected(chan)->id.name;
2470                         }
2471                         ast_channel_set_caller_event(tc, &caller, NULL);
2472                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2473                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(tc)->id.name.valid, ast_channel_caller(tc)->id.name.str,
2474                         NULL))) {
2475                         /* The new channel has no preset CallerID name by the channel driver. */
2476                         if (!ast_strlen_zero(S_COR(ast_channel_connected(chan)->id.name.valid,
2477                                 ast_channel_connected(chan)->id.name.str, NULL))) {
2478                                 /*
2479                                  * We have a connected name supplied by the dialplan we can
2480                                  * use instead.
2481                                  */
2482                                 caller.id.name.valid = 1;
2483                                 caller.id.name = ast_channel_connected(chan)->id.name;
2484                                 ast_channel_set_caller_event(tc, &caller, NULL);
2485                         }
2486                 }
2487
2488                 /* Determine CallerID for outgoing channel to send. */
2489                 if (ast_test_flag64(peerflags, OPT_FORCECLID) && !force_forwards_only) {
2490                         struct ast_party_connected_line connected;
2491
2492                         ast_party_connected_line_set_init(&connected, ast_channel_connected(tc));
2493                         connected.id = forced_clid;
2494                         ast_channel_set_connected_line(tc, &connected, NULL);
2495                 } else {
2496                         ast_connected_line_copy_from_caller(ast_channel_connected(tc), ast_channel_caller(chan));
2497                 }
2498
2499                 ast_party_redirecting_copy(ast_channel_redirecting(tc), ast_channel_redirecting(chan));
2500
2501                 ast_channel_dialed(tc)->transit_network_select = ast_channel_dialed(chan)->transit_network_select;
2502
2503                 if (!ast_strlen_zero(ast_channel_accountcode(chan))) {
2504                         ast_channel_accountcode_set(tc, ast_channel_accountcode(chan));
2505                 }
2506                 if (ast_strlen_zero(ast_channel_musicclass(tc))) {
2507                         ast_channel_musicclass_set(tc, ast_channel_musicclass(chan));
2508                 }
2509
2510                 /* Pass ADSI CPE and transfer capability */
2511                 ast_channel_adsicpe_set(tc, ast_channel_adsicpe(chan));
2512                 ast_channel_transfercapability_set(tc, ast_channel_transfercapability(chan));
2513
2514