Remove required type field from channel blobs
[asterisk/asterisk.git] / apps / app_dial.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2012, 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 #include "asterisk/stasis_channels.h"
71
72 /*** DOCUMENTATION
73         <application name="Dial" language="en_US">
74                 <synopsis>
75                         Attempt to connect to another device or endpoint and bridge the call.
76                 </synopsis>
77                 <syntax>
78                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
79                                 <argument name="Technology/Resource" required="true">
80                                         <para>Specification of the device(s) to dial.  These must be in the format of
81                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
82                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
83                                         represents a resource available to that particular channel driver.</para>
84                                 </argument>
85                                 <argument name="Technology2/Resource2" required="false" multiple="true">
86                                         <para>Optional extra devices to dial in parallel</para>
87                                         <para>If you need more then one enter them as
88                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
89                                 </argument>
90                         </parameter>
91                         <parameter name="timeout" required="false">
92                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
93                                 <para>If not specified, this defaults to 136 years.</para>
94                         </parameter>
95                         <parameter name="options" required="false">
96                                 <optionlist>
97                                 <option name="A">
98                                         <argument name="x" required="true">
99                                                 <para>The file to play to the called party</para>
100                                         </argument>
101                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
102                                 </option>
103                                 <option name="a">
104                                         <para>Immediately answer the calling channel when the called channel answers in
105                                         all cases. Normally, the calling channel is answered when the called channel
106                                         answers, but when options such as A() and M() are used, the calling channel is
107                                         not answered until all actions on the called channel (such as playing an
108                                         announcement) are completed.  This option can be used to answer the calling
109                                         channel before doing anything on the called channel. You will rarely need to use
110                                         this option, the default behavior is adequate in most cases.</para>
111                                 </option>
112                                 <option name="b" argsep="^">
113                                         <para>Before initiating an outgoing call, Gosub to the specified
114                                         location using the newly created channel.  The Gosub will be
115                                         executed for each destination channel.</para>
116                                         <argument name="context" required="false" />
117                                         <argument name="exten" required="false" />
118                                         <argument name="priority" required="true" hasparams="optional" argsep="^">
119                                                 <argument name="arg1" multiple="true" required="true" />
120                                                 <argument name="argN" />
121                                         </argument>
122                                 </option>
123                                 <option name="B" argsep="^">
124                                         <para>Before initiating the outgoing call(s), Gosub to the specified
125                                         location using the current channel.</para>
126                                         <argument name="context" required="false" />
127                                         <argument name="exten" required="false" />
128                                         <argument name="priority" required="true" hasparams="optional" argsep="^">
129                                                 <argument name="arg1" multiple="true" required="true" />
130                                                 <argument name="argN" />
131                                         </argument>
132                                 </option>
133                                 <option name="C">
134                                         <para>Reset the call detail record (CDR) for this call.</para>
135                                 </option>
136                                 <option name="c">
137                                         <para>If the Dial() application cancels this call, always set HANGUPCAUSE to '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                                         to the called party immediately after receiving a PROGRESS message.</para>
160                                         <para>See SendDTMF for valid digits.</para>
161                                 </option>
162                                 <option name="e">
163                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
164                                 </option>
165                                 <option name="f">
166                                         <argument name="x" required="false" />
167                                         <para>If <replaceable>x</replaceable> is not provided, force the CallerID sent on a call-forward or
168                                         deflection to the dialplan extension of this Dial() using a dialplan <literal>hint</literal>.
169                                         For example, some PSTNs do not allow CallerID to be set to anything
170                                         other than the numbers assigned to you.
171                                         If <replaceable>x</replaceable> is provided, force the CallerID sent to <replaceable>x</replaceable>.</para>
172                                 </option>
173                                 <option name="F" argsep="^">
174                                         <argument name="context" required="false" />
175                                         <argument name="exten" required="false" />
176                                         <argument name="priority" required="true" />
177                                         <para>When the caller hangs up, transfer the <emphasis>called</emphasis> party
178                                         to the specified destination and <emphasis>start</emphasis> execution at that location.</para>
179                                         <note>
180                                                 <para>Any channel variables you want the called channel to inherit from the caller channel must be
181                                                 prefixed with one or two underbars ('_').</para>
182                                         </note>
183                                 </option>
184                                 <option name="F">
185                                         <para>When the caller hangs up, transfer the <emphasis>called</emphasis> party to the next priority of the current extension
186                                         and <emphasis>start</emphasis> execution at that location.</para>
187                                         <note>
188                                                 <para>Any channel variables you want the called channel to inherit from the caller channel must be
189                                                 prefixed with one or two underbars ('_').</para>
190                                         </note>
191                                         <note>
192                                                 <para>Using this option from a Macro() or GoSub() might not make sense as there would be no return points.</para>
193                                         </note>
194                                 </option>
195                                 <option name="g">
196                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
197                                         destination channel hangs up.</para>
198                                 </option>
199                                 <option name="G" argsep="^">
200                                         <argument name="context" required="false" />
201                                         <argument name="exten" required="false" />
202                                         <argument name="priority" required="true" />
203                                         <para>If the call is answered, transfer the calling party to
204                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
205                                         <replaceable>priority</replaceable> plus one.</para>
206                                         <note>
207                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
208                                         </note>
209                                 </option>
210                                 <option name="h">
211                                         <para>Allow the called party to hang up by sending the DTMF sequence
212                                         defined for disconnect in <filename>features.conf</filename>.</para>
213                                 </option>
214                                 <option name="H">
215                                         <para>Allow the calling party to hang up by sending the DTMF sequence
216                                         defined for disconnect in <filename>features.conf</filename>.</para>
217                                         <note>
218                                                 <para>Many SIP and ISDN phones cannot send DTMF digits until the call is
219                                                 connected.  If you wish to allow DTMF disconnect before the dialed
220                                                 party answers with these phones, you can use the <literal>Answer</literal>
221                                                 application before dialing.</para>
222                                         </note>
223                                 </option>
224                                 <option name="i">
225                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
226                                 </option>
227                                 <option name="I">
228                                         <para>Asterisk will ignore any connected line update requests or any redirecting party
229                                         update requests it may receive on this dial attempt.</para>
230                                 </option>
231                                 <option name="k">
232                                         <para>Allow the called party to enable parking of the call by sending
233                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
234                                 </option>
235                                 <option name="K">
236                                         <para>Allow the calling party to enable parking of the call by sending
237                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
238                                 </option>
239                                 <option name="L" argsep=":">
240                                         <argument name="x" required="true">
241                                                 <para>Maximum call time, in milliseconds</para>
242                                         </argument>
243                                         <argument name="y">
244                                                 <para>Warning time, in milliseconds</para>
245                                         </argument>
246                                         <argument name="z">
247                                                 <para>Repeat time, in milliseconds</para>
248                                         </argument>
249                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
250                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
251                                         <para>This option is affected by the following variables:</para>
252                                         <variablelist>
253                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
254                                                         <value name="yes" default="true" />
255                                                         <value name="no" />
256                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
257                                                 </variable>
258                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
259                                                         <value name="yes" />
260                                                         <value name="no" default="true"/>
261                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
262                                                 </variable>
263                                                 <variable name="LIMIT_TIMEOUT_FILE">
264                                                         <value name="filename"/>
265                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
266                                                         If not set, the time remaining will be announced.</para>
267                                                 </variable>
268                                                 <variable name="LIMIT_CONNECT_FILE">
269                                                         <value name="filename"/>
270                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
271                                                         If not set, the time remaining will be announced.</para>
272                                                 </variable>
273                                                 <variable name="LIMIT_WARNING_FILE">
274                                                         <value name="filename"/>
275                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
276                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
277                                                 </variable>
278                                         </variablelist>
279                                 </option>
280                                 <option name="m">
281                                         <argument name="class" required="false"/>
282                                         <para>Provide hold music to the calling party until a requested
283                                         channel answers. A specific music on hold <replaceable>class</replaceable>
284                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
285                                 </option>
286                                 <option name="M" argsep="^">
287                                         <argument name="macro" required="true">
288                                                 <para>Name of the macro that should be executed.</para>
289                                         </argument>
290                                         <argument name="arg" multiple="true">
291                                                 <para>Macro arguments</para>
292                                         </argument>
293                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
294                                         before connecting to the calling channel. Arguments can be specified to the Macro
295                                         using <literal>^</literal> as a delimiter. The macro can set the variable
296                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
297                                         finished executing:</para>
298                                         <variablelist>
299                                                 <variable name="MACRO_RESULT">
300                                                         <para>If set, this action will be taken after the macro finished executing.</para>
301                                                         <value name="ABORT">
302                                                                 Hangup both legs of the call
303                                                         </value>
304                                                         <value name="CONGESTION">
305                                                                 Behave as if line congestion was encountered
306                                                         </value>
307                                                         <value name="BUSY">
308                                                                 Behave as if a busy signal was encountered
309                                                         </value>
310                                                         <value name="CONTINUE">
311                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
312                                                         </value>
313                                                         <value name="GOTO:[[&lt;context&gt;^]&lt;exten&gt;^]&lt;priority&gt;">
314                                                                 Transfer the call to the specified destination.
315                                                         </value>
316                                                 </variable>
317                                         </variablelist>
318                                         <note>
319                                                 <para>You cannot use any additional action post answer options in conjunction
320                                                 with this option. Also, pbx services are run on the peer (called) channel,
321                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
322                                         </note>
323                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
324                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
325                                         Macro()</para></warning>
326                                 </option>
327                                 <option name="n">
328                                         <argument name="delete">
329                                                 <para>With <replaceable>delete</replaceable> either not specified or set to <literal>0</literal>,
330                                                 the recorded introduction will not be deleted if the caller hangs up while the remote party has not
331                                                 yet answered.</para>
332                                                 <para>With <replaceable>delete</replaceable> set to <literal>1</literal>, the introduction will
333                                                 always be deleted.</para>
334                                         </argument>
335                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
336                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
337                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
338                                         directory.</para>
339                                 </option>
340                                 <option name="N">
341                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
342                                         that if Caller*ID is present, do not screen the call.</para>
343                                 </option>
344                                 <option name="o">
345                                         <argument name="x" required="false" />
346                                         <para>If <replaceable>x</replaceable> is not provided, specify that the CallerID that was present on the
347                                         <emphasis>calling</emphasis> channel be stored as the CallerID on the <emphasis>called</emphasis> channel.
348                                         This was the behavior of Asterisk 1.0 and earlier.
349                                         If <replaceable>x</replaceable> is provided, specify the CallerID stored on the <emphasis>called</emphasis> channel.
350                                         Note that o(${CALLERID(all)}) is similar to option o without the parameter.</para>
351                                 </option>
352                                 <option name="O">
353                                         <argument name="mode">
354                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
355                                                 the originator hanging up will cause the phone to ring back immediately.</para>
356                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
357                                                 flashes the trunk, it will ring their phone back.</para>
358                                         </argument>
359                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
360                                         works when bridging a DAHDI channel to another DAHDI channel
361                                         only. if specified on non-DAHDI interfaces, it will be ignored.
362                                         When the destination answers (presumably an operator services
363                                         station), the originator no longer has control of their line.
364                                         They may hang up, but the switch will not release their line
365                                         until the destination party (the operator) hangs up.</para>
366                                 </option>
367                                 <option name="p">
368                                         <para>This option enables screening mode. This is basically Privacy mode
369                                         without memory.</para>
370                                 </option>
371                                 <option name="P">
372                                         <argument name="x" />
373                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
374                                         it is provided. The current extension is used if a database family/key is not specified.</para>
375                                 </option>
376                                 <option name="r">
377                                         <para>Default: Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
378                                         party until the called channel has answered.</para>
379                                         <argument name="tone" required="false">
380                                                 <para>Indicate progress to calling party. Send audio 'tone' from indications.conf</para>
381                                         </argument>
382                                 </option>
383                                 <option name="S">
384                                         <argument name="x" required="true" />
385                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
386                                         answered the call.</para>
387                                 </option>
388                                 <option name="s">
389                                         <argument name="x" required="true" />
390                                         <para>Force the outgoing callerid tag parameter to be set to the string <replaceable>x</replaceable>.</para>
391                                         <para>Works with the f option.</para>
392                                 </option>
393                                 <option name="t">
394                                         <para>Allow the called party to transfer the calling party by sending the
395                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
396                                         transfers initiated by other methods.</para>
397                                 </option>
398                                 <option name="T">
399                                         <para>Allow the calling party to transfer the called party by sending the
400                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
401                                         transfers initiated by other methods.</para>
402                                 </option>
403                                 <option name="U" argsep="^">
404                                         <argument name="x" required="true">
405                                                 <para>Name of the subroutine to execute via Gosub</para>
406                                         </argument>
407                                         <argument name="arg" multiple="true" required="false">
408                                                 <para>Arguments for the Gosub routine</para>
409                                         </argument>
410                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
411                                         to the calling channel. Arguments can be specified to the Gosub
412                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
413                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
414                                         <variablelist>
415                                                 <variable name="GOSUB_RESULT">
416                                                         <value name="ABORT">
417                                                                 Hangup both legs of the call.
418                                                         </value>
419                                                         <value name="CONGESTION">
420                                                                 Behave as if line congestion was encountered.
421                                                         </value>
422                                                         <value name="BUSY">
423                                                                 Behave as if a busy signal was encountered.
424                                                         </value>
425                                                         <value name="CONTINUE">
426                                                                 Hangup the called party and allow the calling party
427                                                                 to continue dialplan execution at the next priority.
428                                                         </value>
429                                                         <value name="GOTO:[[&lt;context&gt;^]&lt;exten&gt;^]&lt;priority&gt;">
430                                                                 Transfer the call to the specified destination.
431                                                         </value>
432                                                 </variable>
433                                         </variablelist>
434                                         <note>
435                                                 <para>You cannot use any additional action post answer options in conjunction
436                                                 with this option. Also, pbx services are run on the peer (called) channel,
437                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
438                                         </note>
439                                 </option>
440                                 <option name="u">
441                                         <argument name = "x" required="true">
442                                                 <para>Force the outgoing callerid presentation indicator parameter to be set
443                                                 to one of the values passed in <replaceable>x</replaceable>:
444                                                 <literal>allowed_not_screened</literal>
445                                                 <literal>allowed_passed_screen</literal>
446                                                 <literal>allowed_failed_screen</literal>
447                                                 <literal>allowed</literal>
448                                                 <literal>prohib_not_screened</literal>
449                                                 <literal>prohib_passed_screen</literal>
450                                                 <literal>prohib_failed_screen</literal>
451                                                 <literal>prohib</literal>
452                                                 <literal>unavailable</literal></para>
453                                         </argument>
454                                         <para>Works with the f option.</para>
455                                 </option>
456                                 <option name="w">
457                                         <para>Allow the called party to enable recording of the call by sending
458                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
459                                 </option>
460                                 <option name="W">
461                                         <para>Allow the calling party to enable recording of the call by sending
462                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
463                                 </option>
464                                 <option name="x">
465                                         <para>Allow the called party to enable recording of the call by sending
466                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
467                                 </option>
468                                 <option name="X">
469                                         <para>Allow the calling party to enable recording of the call by sending
470                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
471                                 </option>
472                                 <option name="z">
473                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
474                                 </option>
475                                 </optionlist>
476                         </parameter>
477                         <parameter name="URL">
478                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
479                         </parameter>
480                 </syntax>
481                 <description>
482                         <para>This application will place calls to one or more specified channels. As soon
483                         as one of the requested channels answers, the originating channel will be
484                         answered, if it has not already been answered. These two channels will then
485                         be active in a bridged call. All other channels that were requested will then
486                         be hung up.</para>
487
488                         <para>Unless there is a timeout specified, the Dial application will wait
489                         indefinitely until one of the called channels answers, the user hangs up, or
490                         if all of the called channels are busy or unavailable. Dialplan executing will
491                         continue if no requested channels can be called, or if the timeout expires.
492                         This application will report normal termination if the originating channel
493                         hangs up, or if the call is bridged and either of the parties in the bridge
494                         ends the call.</para>
495                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
496                         application will be put into that group (as in Set(GROUP()=...).
497                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
498                         application will be put into that group (as in Set(GROUP()=...). Unlike <variable>OUTBOUND_GROUP</variable>,
499                         however, the variable will be unset after use.</para>
500
501                         <para>This application sets the following channel variables:</para>
502                         <variablelist>
503                                 <variable name="DIALEDTIME">
504                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
505                                 </variable>
506                                 <variable name="ANSWEREDTIME">
507                                         <para>This is the amount of time for actual call.</para>
508                                 </variable>
509                                 <variable name="DIALSTATUS">
510                                         <para>This is the status of the call</para>
511                                         <value name="CHANUNAVAIL" />
512                                         <value name="CONGESTION" />
513                                         <value name="NOANSWER" />
514                                         <value name="BUSY" />
515                                         <value name="ANSWER" />
516                                         <value name="CANCEL" />
517                                         <value name="DONTCALL">
518                                                 For the Privacy and Screening Modes.
519                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
520                                         </value>
521                                         <value name="TORTURE">
522                                                 For the Privacy and Screening Modes.
523                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
524                                         </value>
525                                         <value name="INVALIDARGS" />
526                                 </variable>
527                         </variablelist>
528                 </description>
529         </application>
530         <application name="RetryDial" language="en_US">
531                 <synopsis>
532                         Place a call, retrying on failure allowing an optional exit extension.
533                 </synopsis>
534                 <syntax>
535                         <parameter name="announce" required="true">
536                                 <para>Filename of sound that will be played when no channel can be reached</para>
537                         </parameter>
538                         <parameter name="sleep" required="true">
539                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
540                         </parameter>
541                         <parameter name="retries" required="true">
542                                 <para>Number of retries</para>
543                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
544                         </parameter>
545                         <parameter name="dialargs" required="true">
546                                 <para>Same format as arguments provided to the Dial application</para>
547                         </parameter>
548                 </syntax>
549                 <description>
550                         <para>This application will attempt to place a call using the normal Dial application.
551                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
552                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
553                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
554                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
555                         While waiting to retry a call, a 1 digit extension may be dialed. If that
556                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
557                         one, The call will jump to that extension immediately.
558                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
559                         to the Dial application.</para>
560                 </description>
561         </application>
562  ***/
563
564 static const char app[] = "Dial";
565 static const char rapp[] = "RetryDial";
566
567 enum {
568         OPT_ANNOUNCE =          (1 << 0),
569         OPT_RESETCDR =          (1 << 1),
570         OPT_DTMF_EXIT =         (1 << 2),
571         OPT_SENDDTMF =          (1 << 3),
572         OPT_FORCECLID =         (1 << 4),
573         OPT_GO_ON =             (1 << 5),
574         OPT_CALLEE_HANGUP =     (1 << 6),
575         OPT_CALLER_HANGUP =     (1 << 7),
576         OPT_ORIGINAL_CLID =     (1 << 8),
577         OPT_DURATION_LIMIT =    (1 << 9),
578         OPT_MUSICBACK =         (1 << 10),
579         OPT_CALLEE_MACRO =      (1 << 11),
580         OPT_SCREEN_NOINTRO =    (1 << 12),
581         OPT_SCREEN_NOCALLERID = (1 << 13),
582         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
583         OPT_SCREENING =         (1 << 15),
584         OPT_PRIVACY =           (1 << 16),
585         OPT_RINGBACK =          (1 << 17),
586         OPT_DURATION_STOP =     (1 << 18),
587         OPT_CALLEE_TRANSFER =   (1 << 19),
588         OPT_CALLER_TRANSFER =   (1 << 20),
589         OPT_CALLEE_MONITOR =    (1 << 21),
590         OPT_CALLER_MONITOR =    (1 << 22),
591         OPT_GOTO =              (1 << 23),
592         OPT_OPERMODE =          (1 << 24),
593         OPT_CALLEE_PARK =       (1 << 25),
594         OPT_CALLER_PARK =       (1 << 26),
595         OPT_IGNORE_FORWARDING = (1 << 27),
596         OPT_CALLEE_GOSUB =      (1 << 28),
597         OPT_CALLEE_MIXMONITOR = (1 << 29),
598         OPT_CALLER_MIXMONITOR = (1 << 30),
599 };
600
601 /* flags are now 64 bits, so keep it up! */
602 #define DIAL_STILLGOING      (1LLU << 31)
603 #define DIAL_NOFORWARDHTML   (1LLU << 32)
604 #define DIAL_CALLERID_ABSENT (1LLU << 33) /* TRUE if caller id is not available for connected line. */
605 #define OPT_CANCEL_ELSEWHERE (1LLU << 34)
606 #define OPT_PEER_H           (1LLU << 35)
607 #define OPT_CALLEE_GO_ON     (1LLU << 36)
608 #define OPT_CANCEL_TIMEOUT   (1LLU << 37)
609 #define OPT_FORCE_CID_TAG    (1LLU << 38)
610 #define OPT_FORCE_CID_PRES   (1LLU << 39)
611 #define OPT_CALLER_ANSWER    (1LLU << 40)
612 #define OPT_PREDIAL_CALLEE   (1LLU << 41)
613 #define OPT_PREDIAL_CALLER   (1LLU << 42)
614
615 enum {
616         OPT_ARG_ANNOUNCE = 0,
617         OPT_ARG_SENDDTMF,
618         OPT_ARG_GOTO,
619         OPT_ARG_DURATION_LIMIT,
620         OPT_ARG_MUSICBACK,
621         OPT_ARG_CALLEE_MACRO,
622         OPT_ARG_RINGBACK,
623         OPT_ARG_CALLEE_GOSUB,
624         OPT_ARG_CALLEE_GO_ON,
625         OPT_ARG_PRIVACY,
626         OPT_ARG_DURATION_STOP,
627         OPT_ARG_OPERMODE,
628         OPT_ARG_SCREEN_NOINTRO,
629         OPT_ARG_ORIGINAL_CLID,
630         OPT_ARG_FORCECLID,
631         OPT_ARG_FORCE_CID_TAG,
632         OPT_ARG_FORCE_CID_PRES,
633         OPT_ARG_PREDIAL_CALLEE,
634         OPT_ARG_PREDIAL_CALLER,
635         /* note: this entry _MUST_ be the last one in the enum */
636         OPT_ARG_ARRAY_SIZE,
637 };
638
639 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
640         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
641         AST_APP_OPTION('a', OPT_CALLER_ANSWER),
642         AST_APP_OPTION_ARG('b', OPT_PREDIAL_CALLEE, OPT_ARG_PREDIAL_CALLEE),
643         AST_APP_OPTION_ARG('B', OPT_PREDIAL_CALLER, OPT_ARG_PREDIAL_CALLER),
644         AST_APP_OPTION('C', OPT_RESETCDR),
645         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
646         AST_APP_OPTION('d', OPT_DTMF_EXIT),
647         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
648         AST_APP_OPTION('e', OPT_PEER_H),
649         AST_APP_OPTION_ARG('f', OPT_FORCECLID, OPT_ARG_FORCECLID),
650         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
651         AST_APP_OPTION('g', OPT_GO_ON),
652         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
653         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
654         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
655         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
656         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
657         AST_APP_OPTION('k', OPT_CALLEE_PARK),
658         AST_APP_OPTION('K', OPT_CALLER_PARK),
659         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
660         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
661         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
662         AST_APP_OPTION_ARG('n', OPT_SCREEN_NOINTRO, OPT_ARG_SCREEN_NOINTRO),
663         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
664         AST_APP_OPTION_ARG('o', OPT_ORIGINAL_CLID, OPT_ARG_ORIGINAL_CLID),
665         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
666         AST_APP_OPTION('p', OPT_SCREENING),
667         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
668         AST_APP_OPTION_ARG('r', OPT_RINGBACK, OPT_ARG_RINGBACK),
669         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
670         AST_APP_OPTION_ARG('s', OPT_FORCE_CID_TAG, OPT_ARG_FORCE_CID_TAG),
671         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
672         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
673         AST_APP_OPTION_ARG('u', OPT_FORCE_CID_PRES, OPT_ARG_FORCE_CID_PRES),
674         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
675         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
676         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
677         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
678         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
679         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
680 END_OPTIONS );
681
682 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
683         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
684         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK |  \
685         OPT_CALLER_PARK | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB) && \
686         !ast_channel_audiohooks(chan) && !ast_channel_audiohooks(peer) && \
687         ast_framehook_list_is_empty(ast_channel_framehooks(chan)) && ast_framehook_list_is_empty(ast_channel_framehooks(peer)))
688
689 /*
690  * The list of active channels
691  */
692 struct chanlist {
693         AST_LIST_ENTRY(chanlist) node;
694         struct ast_channel *chan;
695         /*! Channel interface dialing string (is tech/number).  (Stored in stuff[]) */
696         const char *interface;
697         /*! Channel technology name.  (Stored in stuff[]) */
698         const char *tech;
699         /*! Channel device addressing.  (Stored in stuff[]) */
700         const char *number;
701         uint64_t flags;
702         /*! Saved connected party info from an AST_CONTROL_CONNECTED_LINE. */
703         struct ast_party_connected_line connected;
704         /*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
705         unsigned int pending_connected_update:1;
706         struct ast_aoc_decoded *aoc_s_rate_list;
707         /*! The interface, tech, and number strings are stuffed here. */
708         char stuff[0];
709 };
710
711 AST_LIST_HEAD_NOLOCK(dial_head, chanlist);
712
713 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str **featurecode);
714
715 static void chanlist_free(struct chanlist *outgoing)
716 {
717         ast_party_connected_line_free(&outgoing->connected);
718         ast_aoc_destroy_decoded(outgoing->aoc_s_rate_list);
719         ast_free(outgoing);
720 }
721
722 static void hanguptree(struct dial_head *out_chans, struct ast_channel *exception, int answered_elsewhere)
723 {
724         /* Hang up a tree of stuff */
725         struct chanlist *outgoing;
726
727         while ((outgoing = AST_LIST_REMOVE_HEAD(out_chans, node))) {
728                 /* Hangup any existing lines we have open */
729                 if (outgoing->chan && (outgoing->chan != exception)) {
730                         if (answered_elsewhere) {
731                                 /* This is for the channel drivers */
732                                 ast_channel_hangupcause_set(outgoing->chan, AST_CAUSE_ANSWERED_ELSEWHERE);
733                         }
734                         ast_hangup(outgoing->chan);
735                 }
736                 chanlist_free(outgoing);
737         }
738 }
739
740 #define AST_MAX_WATCHERS 256
741
742 /*
743  * argument to handle_cause() and other functions.
744  */
745 struct cause_args {
746         struct ast_channel *chan;
747         int busy;
748         int congestion;
749         int nochan;
750 };
751
752 static void handle_cause(int cause, struct cause_args *num)
753 {
754         struct ast_cdr *cdr = ast_channel_cdr(num->chan);
755
756         switch(cause) {
757         case AST_CAUSE_BUSY:
758                 if (cdr)
759                         ast_cdr_busy(cdr);
760                 num->busy++;
761                 break;
762
763         case AST_CAUSE_CONGESTION:
764                 if (cdr)
765                         ast_cdr_failed(cdr);
766                 num->congestion++;
767                 break;
768
769         case AST_CAUSE_NO_ROUTE_DESTINATION:
770         case AST_CAUSE_UNREGISTERED:
771                 if (cdr)
772                         ast_cdr_failed(cdr);
773                 num->nochan++;
774                 break;
775
776         case AST_CAUSE_NO_ANSWER:
777                 if (cdr) {
778                         ast_cdr_noanswer(cdr);
779                 }
780                 break;
781         case AST_CAUSE_NORMAL_CLEARING:
782                 break;
783
784         default:
785                 num->nochan++;
786                 break;
787         }
788 }
789
790 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
791 {
792         char rexten[2] = { exten, '\0' };
793
794         if (context) {
795                 if (!ast_goto_if_exists(chan, context, rexten, pri))
796                         return 1;
797         } else {
798                 if (!ast_goto_if_exists(chan, ast_channel_context(chan), rexten, pri))
799                         return 1;
800                 else if (!ast_strlen_zero(ast_channel_macrocontext(chan))) {
801                         if (!ast_goto_if_exists(chan, ast_channel_macrocontext(chan), rexten, pri))
802                                 return 1;
803                 }
804         }
805         return 0;
806 }
807
808 /* do not call with chan lock held */
809 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
810 {
811         const char *context;
812         const char *exten;
813
814         ast_channel_lock(chan);
815         context = ast_strdupa(S_OR(ast_channel_macrocontext(chan), ast_channel_context(chan)));
816         exten = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
817         ast_channel_unlock(chan);
818
819         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
820 }
821
822 /*!
823  * helper function for wait_for_answer()
824  *
825  * \param o Outgoing call channel list.
826  * \param num Incoming call channel cause accumulation
827  * \param peerflags Dial option flags
828  * \param single TRUE if there is only one outgoing call.
829  * \param caller_entertained TRUE if the caller is being entertained by MOH or ringback.
830  * \param to Remaining call timeout time.
831  * \param forced_clid OPT_FORCECLID caller id to send
832  * \param stored_clid Caller id representing the called party if needed
833  *
834  * XXX this code is highly suspicious, as it essentially overwrites
835  * the outgoing channel without properly deleting it.
836  *
837  * \todo eventually this function should be intergrated into and replaced by ast_call_forward()
838  */
839 static void do_forward(struct chanlist *o, struct cause_args *num,
840         struct ast_flags64 *peerflags, int single, int caller_entertained, int *to,
841         struct ast_party_id *forced_clid, struct ast_party_id *stored_clid)
842 {
843         char tmpchan[256];
844         struct ast_channel *original = o->chan;
845         struct ast_channel *c = o->chan; /* the winner */
846         struct ast_channel *in = num->chan; /* the input channel */
847         char *stuff;
848         char *tech;
849         int cause;
850         struct ast_party_caller caller;
851
852         ast_copy_string(tmpchan, ast_channel_call_forward(c), sizeof(tmpchan));
853         if ((stuff = strchr(tmpchan, '/'))) {
854                 *stuff++ = '\0';
855                 tech = tmpchan;
856         } else {
857                 const char *forward_context;
858                 ast_channel_lock(c);
859                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
860                 if (ast_strlen_zero(forward_context)) {
861                         forward_context = NULL;
862                 }
863                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", ast_channel_call_forward(c), forward_context ? forward_context : ast_channel_context(c));
864                 ast_channel_unlock(c);
865                 stuff = tmpchan;
866                 tech = "Local";
867         }
868         if (!strcasecmp(tech, "Local")) {
869                 /*
870                  * Drop the connected line update block for local channels since
871                  * this is going to run dialplan and the user can change his
872                  * mind about what connected line information he wants to send.
873                  */
874                 ast_clear_flag64(o, OPT_IGNORE_CONNECTEDLINE);
875         }
876
877         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, ast_channel_call_forward(c), NULL);
878
879         /* Before processing channel, go ahead and check for forwarding */
880         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", ast_channel_name(in), tech, stuff, ast_channel_name(c));
881         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
882         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
883                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", ast_channel_name(in), tech, stuff);
884                 c = o->chan = NULL;
885                 cause = AST_CAUSE_BUSY;
886         } else {
887                 /* Setup parameters */
888                 c = o->chan = ast_request(tech, ast_channel_nativeformats(in), in, stuff, &cause);
889                 if (c) {
890                         if (single && !caller_entertained) {
891                                 ast_channel_make_compatible(o->chan, in);
892                         }
893                         ast_channel_lock_both(in, o->chan);
894                         ast_channel_inherit_variables(in, o->chan);
895                         ast_channel_datastore_inherit(in, o->chan);
896                         ast_channel_unlock(in);
897                         ast_channel_unlock(o->chan);
898                         /* When a call is forwarded, we don't want to track new interfaces
899                          * dialed for CC purposes. Setting the done flag will ensure that
900                          * any Dial operations that happen later won't record CC interfaces.
901                          */
902                         ast_ignore_cc(o->chan);
903                         ast_log(LOG_NOTICE, "Not accepting call completion offers from call-forward recipient %s\n", ast_channel_name(o->chan));
904                 } else
905                         ast_log(LOG_NOTICE,
906                                 "Forwarding failed to create channel to dial '%s/%s' (cause = %d)\n",
907                                 tech, stuff, cause);
908         }
909         if (!c) {
910                 ast_clear_flag64(o, DIAL_STILLGOING);
911                 handle_cause(cause, num);
912                 ast_hangup(original);
913         } else {
914                 ast_channel_lock_both(c, original);
915                 ast_party_redirecting_copy(ast_channel_redirecting(c),
916                         ast_channel_redirecting(original));
917                 ast_channel_unlock(c);
918                 ast_channel_unlock(original);
919
920                 ast_channel_lock_both(c, in);
921
922                 if (single && !caller_entertained && CAN_EARLY_BRIDGE(peerflags, c, in)) {
923                         ast_rtp_instance_early_bridge_make_compatible(c, in);
924                 }
925
926                 if (!ast_channel_redirecting(c)->from.number.valid
927                         || ast_strlen_zero(ast_channel_redirecting(c)->from.number.str)) {
928                         /*
929                          * The call was not previously redirected so it is
930                          * now redirected from this number.
931                          */
932                         ast_party_number_free(&ast_channel_redirecting(c)->from.number);
933                         ast_party_number_init(&ast_channel_redirecting(c)->from.number);
934                         ast_channel_redirecting(c)->from.number.valid = 1;
935                         ast_channel_redirecting(c)->from.number.str =
936                                 ast_strdup(S_OR(ast_channel_macroexten(in), ast_channel_exten(in)));
937                 }
938
939                 ast_channel_dialed(c)->transit_network_select = ast_channel_dialed(in)->transit_network_select;
940
941                 /* Determine CallerID to store in outgoing channel. */
942                 ast_party_caller_set_init(&caller, ast_channel_caller(c));
943                 if (ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
944                         caller.id = *stored_clid;
945                         ast_channel_set_caller_event(c, &caller, NULL);
946                         ast_set_flag64(o, DIAL_CALLERID_ABSENT);
947                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(c)->id.number.valid,
948                         ast_channel_caller(c)->id.number.str, NULL))) {
949                         /*
950                          * The new channel has no preset CallerID number by the channel
951                          * driver.  Use the dialplan extension and hint name.
952                          */
953                         caller.id = *stored_clid;
954                         ast_channel_set_caller_event(c, &caller, NULL);
955                         ast_set_flag64(o, DIAL_CALLERID_ABSENT);
956                 } else {
957                         ast_clear_flag64(o, DIAL_CALLERID_ABSENT);
958                 }
959
960                 /* Determine CallerID for outgoing channel to send. */
961                 if (ast_test_flag64(o, OPT_FORCECLID)) {
962                         struct ast_party_connected_line connected;
963
964                         ast_party_connected_line_init(&connected);
965                         connected.id = *forced_clid;
966                         ast_party_connected_line_copy(ast_channel_connected(c), &connected);
967                 } else {
968                         ast_connected_line_copy_from_caller(ast_channel_connected(c), ast_channel_caller(in));
969                 }
970
971                 ast_channel_accountcode_set(c, ast_channel_accountcode(in));
972
973                 ast_channel_appl_set(c, "AppDial");
974                 ast_channel_data_set(c, "(Outgoing Line)");
975
976                 ast_channel_unlock(in);
977                 if (single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
978                         struct ast_party_redirecting redirecting;
979
980                         /*
981                          * Redirecting updates to the caller make sense only on single
982                          * calls.
983                          *
984                          * We must unlock c before calling
985                          * ast_channel_redirecting_macro, because we put c into
986                          * autoservice there.  That is pretty much a guaranteed
987                          * deadlock.  This is why the handling of c's lock may seem a
988                          * bit unusual here.
989                          */
990                         ast_party_redirecting_init(&redirecting);
991                         ast_party_redirecting_copy(&redirecting, ast_channel_redirecting(c));
992                         ast_channel_unlock(c);
993                         if (ast_channel_redirecting_sub(c, in, &redirecting, 0) &&
994                                 ast_channel_redirecting_macro(c, in, &redirecting, 1, 0)) {
995                                 ast_channel_update_redirecting(in, &redirecting, NULL);
996                         }
997                         ast_party_redirecting_free(&redirecting);
998                 } else {
999                         ast_channel_unlock(c);
1000                 }
1001
1002                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
1003                         *to = -1;
1004                 }
1005
1006                 if (ast_call(c, stuff, 0)) {
1007                         ast_log(LOG_NOTICE, "Forwarding failed to dial '%s/%s'\n",
1008                                 tech, stuff);
1009                         ast_clear_flag64(o, DIAL_STILLGOING);
1010                         ast_hangup(original);
1011                         ast_hangup(c);
1012                         c = o->chan = NULL;
1013                         num->nochan++;
1014                 } else {
1015                         ast_channel_lock_both(c, in);
1016                         ast_channel_publish_dial(c, in, stuff, NULL);
1017                         ast_channel_unlock(in);
1018                         ast_channel_unlock(c);
1019                         /* Hangup the original channel now, in case we needed it */
1020                         ast_hangup(original);
1021                 }
1022                 if (single && !caller_entertained) {
1023                         ast_indicate(in, -1);
1024                 }
1025         }
1026 }
1027
1028 /* argument used for some functions. */
1029 struct privacy_args {
1030         int sentringing;
1031         int privdb_val;
1032         char privcid[256];
1033         char privintro[1024];
1034         char status[256];
1035 };
1036
1037 static const char *hangup_cause_to_dial_status(int hangup_cause)
1038 {
1039         switch(hangup_cause) {
1040         case AST_CAUSE_BUSY:
1041                 return "BUSY";
1042         case AST_CAUSE_CONGESTION:
1043                 return "CONGESTION";
1044         case AST_CAUSE_NO_ROUTE_DESTINATION:
1045         case AST_CAUSE_UNREGISTERED:
1046                 return "CHANUNAVAIL";
1047         case AST_CAUSE_NO_ANSWER:
1048         default:
1049                 return "NOANSWER";
1050         }
1051 }
1052
1053 static void publish_dial_end_event(struct ast_channel *in, struct dial_head *out_chans, struct ast_channel *exception, const char *status)
1054 {
1055         struct chanlist *outgoing;
1056         AST_LIST_TRAVERSE(out_chans, outgoing, node) {
1057                 if (!outgoing->chan || outgoing->chan == exception) {
1058                         continue;
1059                 }
1060                 ast_channel_publish_dial(in, outgoing->chan, NULL, status);
1061         }
1062 }
1063
1064 static struct ast_channel *wait_for_answer(struct ast_channel *in,
1065         struct dial_head *out_chans, int *to, struct ast_flags64 *peerflags,
1066         char *opt_args[],
1067         struct privacy_args *pa,
1068         const struct cause_args *num_in, int *result, char *dtmf_progress,
1069         const int ignore_cc,
1070         struct ast_party_id *forced_clid, struct ast_party_id *stored_clid)
1071 {
1072         struct cause_args num = *num_in;
1073         int prestart = num.busy + num.congestion + num.nochan;
1074         int orig = *to;
1075         struct ast_channel *peer = NULL;
1076 #ifdef HAVE_EPOLL
1077         struct chanlist *epollo;
1078 #endif
1079         struct chanlist *outgoing = AST_LIST_FIRST(out_chans);
1080         /* single is set if only one destination is enabled */
1081         int single = outgoing && !AST_LIST_NEXT(outgoing, node);
1082         int caller_entertained = outgoing
1083                 && ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK);
1084         struct ast_party_connected_line connected_caller;
1085         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
1086         int cc_recall_core_id;
1087         int is_cc_recall;
1088         int cc_frame_received = 0;
1089         int num_ringing = 0;
1090         struct timeval start = ast_tvnow();
1091
1092         ast_party_connected_line_init(&connected_caller);
1093         if (single) {
1094                 /* Turn off hold music, etc */
1095                 if (!caller_entertained) {
1096                         ast_deactivate_generator(in);
1097                         /* If we are calling a single channel, and not providing ringback or music, */
1098                         /* then, make them compatible for in-band tone purpose */
1099                         if (ast_channel_make_compatible(outgoing->chan, in) < 0) {
1100                                 /* If these channels can not be made compatible, 
1101                                  * there is no point in continuing.  The bridge
1102                                  * will just fail if it gets that far.
1103                                  */
1104                                 *to = -1;
1105                                 strcpy(pa->status, "CONGESTION");
1106                                 ast_cdr_failed(ast_channel_cdr(in));
1107                                 ast_channel_publish_dial(in, outgoing->chan, NULL, pa->status);
1108                                 return NULL;
1109                         }
1110                 }
1111
1112                 if (!ast_test_flag64(outgoing, OPT_IGNORE_CONNECTEDLINE)
1113                         && !ast_test_flag64(outgoing, DIAL_CALLERID_ABSENT)) {
1114                         ast_channel_lock(outgoing->chan);
1115                         ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(outgoing->chan));
1116                         ast_channel_unlock(outgoing->chan);
1117                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1118                         if (ast_channel_connected_line_sub(outgoing->chan, in, &connected_caller, 0) &&
1119                                 ast_channel_connected_line_macro(outgoing->chan, in, &connected_caller, 1, 0)) {
1120                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1121                         }
1122                         ast_party_connected_line_free(&connected_caller);
1123                 }
1124         }
1125
1126         is_cc_recall = ast_cc_is_recall(in, &cc_recall_core_id, NULL);
1127
1128 #ifdef HAVE_EPOLL
1129         AST_LIST_TRAVERSE(out_chans, epollo, node) {
1130                 ast_poll_channel_add(in, epollo->chan);
1131         }
1132 #endif
1133
1134         while ((*to = ast_remaining_ms(start, orig)) && !peer) {
1135                 struct chanlist *o;
1136                 int pos = 0; /* how many channels do we handle */
1137                 int numlines = prestart;
1138                 struct ast_channel *winner;
1139                 struct ast_channel *watchers[AST_MAX_WATCHERS];
1140
1141                 watchers[pos++] = in;
1142                 AST_LIST_TRAVERSE(out_chans, o, node) {
1143                         /* Keep track of important channels */
1144                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
1145                                 watchers[pos++] = o->chan;
1146                         numlines++;
1147                 }
1148                 if (pos == 1) { /* only the input channel is available */
1149                         if (numlines == (num.busy + num.congestion + num.nochan)) {
1150                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1151                                 if (num.busy)
1152                                         strcpy(pa->status, "BUSY");
1153                                 else if (num.congestion)
1154                                         strcpy(pa->status, "CONGESTION");
1155                                 else if (num.nochan)
1156                                         strcpy(pa->status, "CHANUNAVAIL");
1157                         } else {
1158                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1159                         }
1160                         *to = 0;
1161                         if (is_cc_recall) {
1162                                 ast_cc_failed(cc_recall_core_id, "Everyone is busy/congested for the recall. How sad");
1163                         }
1164                         return NULL;
1165                 }
1166                 winner = ast_waitfor_n(watchers, pos, to);
1167                 AST_LIST_TRAVERSE(out_chans, o, node) {
1168                         struct ast_frame *f;
1169                         struct ast_channel *c = o->chan;
1170
1171                         if (c == NULL)
1172                                 continue;
1173                         if (ast_test_flag64(o, DIAL_STILLGOING) && ast_channel_state(c) == AST_STATE_UP) {
1174                                 if (!peer) {
1175                                         ast_verb(3, "%s answered %s\n", ast_channel_name(c), ast_channel_name(in));
1176                                         if (!single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1177                                                 if (o->pending_connected_update) {
1178                                                         if (ast_channel_connected_line_sub(c, in, &o->connected, 0) &&
1179                                                                 ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1180                                                                 ast_channel_update_connected_line(in, &o->connected, NULL);
1181                                                         }
1182                                                 } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1183                                                         ast_channel_lock(c);
1184                                                         ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(c));
1185                                                         ast_channel_unlock(c);
1186                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1187                                                         if (ast_channel_connected_line_sub(c, in, &connected_caller, 0) &&
1188                                                                 ast_channel_connected_line_macro(c, in, &connected_caller, 1, 0)) {
1189                                                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1190                                                         }
1191                                                         ast_party_connected_line_free(&connected_caller);
1192                                                 }
1193                                         }
1194                                         if (o->aoc_s_rate_list) {
1195                                                 size_t encoded_size;
1196                                                 struct ast_aoc_encoded *encoded;
1197                                                 if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1198                                                         ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1199                                                         ast_aoc_destroy_encoded(encoded);
1200                                                 }
1201                                         }
1202                                         peer = c;
1203                                         ast_copy_flags64(peerflags, o,
1204                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1205                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1206                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1207                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1208                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1209                                                 DIAL_NOFORWARDHTML);
1210                                         ast_channel_dialcontext_set(c, "");
1211                                         ast_channel_exten_set(c, "");
1212                                 }
1213                                 continue;
1214                         }
1215                         if (c != winner)
1216                                 continue;
1217                         /* here, o->chan == c == winner */
1218                         if (!ast_strlen_zero(ast_channel_call_forward(c))) {
1219                                 pa->sentringing = 0;
1220                                 if (!ignore_cc && (f = ast_read(c))) {
1221                                         if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_CC) {
1222                                                 /* This channel is forwarding the call, and is capable of CC, so
1223                                                  * be sure to add the new device interface to the list
1224                                                  */
1225                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1226                                         }
1227                                         ast_frfree(f);
1228                                 }
1229
1230                                 if (o->pending_connected_update) {
1231                                         /*
1232                                          * Re-seed the chanlist's connected line information with
1233                                          * previously acquired connected line info from the incoming
1234                                          * channel.  The previously acquired connected line info could
1235                                          * have been set through the CONNECTED_LINE dialplan function.
1236                                          */
1237                                         o->pending_connected_update = 0;
1238                                         ast_channel_lock(in);
1239                                         ast_party_connected_line_copy(&o->connected, ast_channel_connected(in));
1240                                         ast_channel_unlock(in);
1241                                 }
1242
1243                                 do_forward(o, &num, peerflags, single, caller_entertained, to,
1244                                         forced_clid, stored_clid);
1245
1246                                 if (single && o->chan
1247                                         && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)
1248                                         && !ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1249                                         ast_channel_lock(o->chan);
1250                                         ast_connected_line_copy_from_caller(&connected_caller,
1251                                                 ast_channel_caller(o->chan));
1252                                         ast_channel_unlock(o->chan);
1253                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1254                                         if (ast_channel_connected_line_sub(o->chan, in, &connected_caller, 0) &&
1255                                                 ast_channel_connected_line_macro(o->chan, in, &connected_caller, 1, 0)) {
1256                                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1257                                         }
1258                                         ast_party_connected_line_free(&connected_caller);
1259                                 }
1260                                 continue;
1261                         }
1262                         f = ast_read(winner);
1263                         if (!f) {
1264                                 ast_channel_hangupcause_set(in, ast_channel_hangupcause(c));
1265 #ifdef HAVE_EPOLL
1266                                 ast_poll_channel_del(in, c);
1267 #endif
1268                                 ast_channel_publish_dial(in, c, NULL, hangup_cause_to_dial_status(ast_channel_hangupcause(c)));
1269                                 ast_hangup(c);
1270                                 c = o->chan = NULL;
1271                                 ast_clear_flag64(o, DIAL_STILLGOING);
1272                                 handle_cause(ast_channel_hangupcause(in), &num);
1273                                 continue;
1274                         }
1275                         switch (f->frametype) {
1276                         case AST_FRAME_CONTROL:
1277                                 switch (f->subclass.integer) {
1278                                 case AST_CONTROL_ANSWER:
1279                                         /* This is our guy if someone answered. */
1280                                         if (!peer) {
1281                                                 ast_verb(3, "%s answered %s\n", ast_channel_name(c), ast_channel_name(in));
1282                                                 if (!single && !ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1283                                                         if (o->pending_connected_update) {
1284                                                                 if (ast_channel_connected_line_sub(c, in, &o->connected, 0) &&
1285                                                                         ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1286                                                                         ast_channel_update_connected_line(in, &o->connected, NULL);
1287                                                                 }
1288                                                         } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1289                                                                 ast_channel_lock(c);
1290                                                                 ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(c));
1291                                                                 ast_channel_unlock(c);
1292                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1293                                                                 if (ast_channel_connected_line_sub(c, in, &connected_caller, 0) &&
1294                                                                         ast_channel_connected_line_macro(c, in, &connected_caller, 1, 0)) {
1295                                                                         ast_channel_update_connected_line(in, &connected_caller, NULL);
1296                                                                 }
1297                                                                 ast_party_connected_line_free(&connected_caller);
1298                                                         }
1299                                                 }
1300                                                 if (o->aoc_s_rate_list) {
1301                                                         size_t encoded_size;
1302                                                         struct ast_aoc_encoded *encoded;
1303                                                         if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1304                                                                 ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1305                                                                 ast_aoc_destroy_encoded(encoded);
1306                                                         }
1307                                                 }
1308                                                 peer = c;
1309                                                 ast_channel_publish_dial(in, peer, NULL, "ANSWER");
1310                                                 publish_dial_end_event(in, out_chans, peer, "CANCEL");
1311                                                 if (ast_channel_cdr(peer)) {
1312                                                         ast_channel_cdr(peer)->answer = ast_tvnow();
1313                                                         ast_channel_cdr(peer)->disposition = AST_CDR_ANSWERED;
1314                                                 }
1315                                                 ast_copy_flags64(peerflags, o,
1316                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1317                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1318                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1319                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1320                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1321                                                         DIAL_NOFORWARDHTML);
1322                                                 ast_channel_dialcontext_set(c, "");
1323                                                 ast_channel_exten_set(c, "");
1324                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer)) {
1325                                                         /* Setup early bridge if appropriate */
1326                                                         ast_channel_early_bridge(in, peer);
1327                                                 }
1328                                         }
1329                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1330                                         ast_channel_hangupcause_set(in, AST_CAUSE_NORMAL_CLEARING);
1331                                         ast_channel_hangupcause_set(c, AST_CAUSE_NORMAL_CLEARING);
1332                                         break;
1333                                 case AST_CONTROL_BUSY:
1334                                         ast_verb(3, "%s is busy\n", ast_channel_name(c));
1335                                         ast_channel_hangupcause_set(in, ast_channel_hangupcause(c));
1336                                         ast_channel_publish_dial(in, c, NULL, hangup_cause_to_dial_status(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_channel_publish_dial(in, c, NULL, hangup_cause_to_dial_status(ast_channel_hangupcause(c)));
1346                                         ast_hangup(c);
1347                                         c = o->chan = NULL;
1348                                         ast_clear_flag64(o, DIAL_STILLGOING);
1349                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1350                                         break;
1351                                 case AST_CONTROL_RINGING:
1352                                         /* This is a tricky area to get right when using a native
1353                                          * CC agent. The reason is that we do the best we can to send only a
1354                                          * single ringing notification to the caller.
1355                                          *
1356                                          * Call completion complicates the logic used here. CCNR is typically
1357                                          * offered during a ringing message. Let's say that party A calls
1358                                          * parties B, C, and D. B and C do not support CC requests, but D
1359                                          * does. If we were to receive a ringing notification from B before
1360                                          * the others, then we would end up sending a ringing message to
1361                                          * A with no CCNR offer present.
1362                                          *
1363                                          * The approach that we have taken is that if we receive a ringing
1364                                          * response from a party and no CCNR offer is present, we need to
1365                                          * wait. Specifically, we need to wait until either a) a called party
1366                                          * offers CCNR in its ringing response or b) all called parties have
1367                                          * responded in some way to our call and none offers CCNR.
1368                                          *
1369                                          * The drawback to this is that if one of the parties has a delayed
1370                                          * response or, god forbid, one just plain doesn't respond to our
1371                                          * outgoing call, then this will result in a significant delay between
1372                                          * when the caller places the call and hears ringback.
1373                                          *
1374                                          * Note also that if CC is disabled for this call, then it is perfectly
1375                                          * fine for ringing frames to get sent through.
1376                                          */
1377                                         ++num_ringing;
1378                                         if (ignore_cc || cc_frame_received || num_ringing == numlines) {
1379                                                 ast_verb(3, "%s is ringing\n", ast_channel_name(c));
1380                                                 /* Setup early media if appropriate */
1381                                                 if (single && !caller_entertained
1382                                                         && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1383                                                         ast_channel_early_bridge(in, c);
1384                                                 }
1385                                                 if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK) && ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
1386                                                         ast_indicate(in, AST_CONTROL_RINGING);
1387                                                         pa->sentringing++;
1388                                                 }
1389                                         }
1390                                         break;
1391                                 case AST_CONTROL_PROGRESS:
1392                                         ast_verb(3, "%s is making progress passing it to %s\n", ast_channel_name(c), ast_channel_name(in));
1393                                         /* Setup early media if appropriate */
1394                                         if (single && !caller_entertained
1395                                                 && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1396                                                 ast_channel_early_bridge(in, c);
1397                                         }
1398                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK)) {
1399                                                 if (single || (!single && !pa->sentringing)) {
1400                                                         ast_indicate(in, AST_CONTROL_PROGRESS);
1401                                                 }
1402                                         }
1403                                         if (!ast_strlen_zero(dtmf_progress)) {
1404                                                 ast_verb(3,
1405                                                         "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n",
1406                                                         dtmf_progress);
1407                                                 ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1408                                         }
1409                                         break;
1410                                 case AST_CONTROL_VIDUPDATE:
1411                                 case AST_CONTROL_SRCUPDATE:
1412                                 case AST_CONTROL_SRCCHANGE:
1413                                         if (!single || caller_entertained) {
1414                                                 break;
1415                                         }
1416                                         ast_verb(3, "%s requested media update control %d, passing it to %s\n",
1417                                                 ast_channel_name(c), f->subclass.integer, ast_channel_name(in));
1418                                         ast_indicate(in, f->subclass.integer);
1419                                         break;
1420                                 case AST_CONTROL_CONNECTED_LINE:
1421                                         if (ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1422                                                 ast_verb(3, "Connected line update to %s prevented.\n", ast_channel_name(in));
1423                                                 break;
1424                                         }
1425                                         if (!single) {
1426                                                 struct ast_party_connected_line connected;
1427
1428                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n",
1429                                                         ast_channel_name(c), ast_channel_name(in));
1430                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1431                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1432                                                 ast_party_connected_line_set(&o->connected, &connected, NULL);
1433                                                 ast_party_connected_line_free(&connected);
1434                                                 o->pending_connected_update = 1;
1435                                                 break;
1436                                         }
1437                                         if (ast_channel_connected_line_sub(c, in, f, 1) &&
1438                                                 ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1439                                                 ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1440                                         }
1441                                         break;
1442                                 case AST_CONTROL_AOC:
1443                                         {
1444                                                 struct ast_aoc_decoded *decoded = ast_aoc_decode(f->data.ptr, f->datalen, o->chan);
1445                                                 if (decoded && (ast_aoc_get_msg_type(decoded) == AST_AOC_S)) {
1446                                                         ast_aoc_destroy_decoded(o->aoc_s_rate_list);
1447                                                         o->aoc_s_rate_list = decoded;
1448                                                 } else {
1449                                                         ast_aoc_destroy_decoded(decoded);
1450                                                 }
1451                                         }
1452                                         break;
1453                                 case AST_CONTROL_REDIRECTING:
1454                                         if (!single) {
1455                                                 /*
1456                                                  * Redirecting updates to the caller make sense only on single
1457                                                  * calls.
1458                                                  */
1459                                                 break;
1460                                         }
1461                                         if (ast_test_flag64(o, OPT_IGNORE_CONNECTEDLINE)) {
1462                                                 ast_verb(3, "Redirecting update to %s prevented.\n", ast_channel_name(in));
1463                                                 break;
1464                                         }
1465                                         ast_verb(3, "%s redirecting info has changed, passing it to %s\n",
1466                                                 ast_channel_name(c), ast_channel_name(in));
1467                                         if (ast_channel_redirecting_sub(c, in, f, 1) &&
1468                                                 ast_channel_redirecting_macro(c, in, f, 1, 1)) {
1469                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1470                                         }
1471                                         pa->sentringing = 0;
1472                                         break;
1473                                 case AST_CONTROL_PROCEEDING:
1474                                         ast_verb(3, "%s is proceeding passing it to %s\n", ast_channel_name(c), ast_channel_name(in));
1475                                         if (single && !caller_entertained
1476                                                 && CAN_EARLY_BRIDGE(peerflags, in, c)) {
1477                                                 ast_channel_early_bridge(in, c);
1478                                         }
1479                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1480                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1481                                         break;
1482                                 case AST_CONTROL_HOLD:
1483                                         /* XXX this should be saved like AST_CONTROL_CONNECTED_LINE for !single || caller_entertained */
1484                                         ast_verb(3, "Call on %s placed on hold\n", ast_channel_name(c));
1485                                         ast_indicate_data(in, AST_CONTROL_HOLD, f->data.ptr, f->datalen);
1486                                         break;
1487                                 case AST_CONTROL_UNHOLD:
1488                                         /* XXX this should be saved like AST_CONTROL_CONNECTED_LINE for !single || caller_entertained */
1489                                         ast_verb(3, "Call on %s left from hold\n", ast_channel_name(c));
1490                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1491                                         break;
1492                                 case AST_CONTROL_OFFHOOK:
1493                                 case AST_CONTROL_FLASH:
1494                                         /* Ignore going off hook and flash */
1495                                         break;
1496                                 case AST_CONTROL_CC:
1497                                         if (!ignore_cc) {
1498                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1499                                                 cc_frame_received = 1;
1500                                         }
1501                                         break;
1502                                 case AST_CONTROL_PVT_CAUSE_CODE:
1503                                         ast_indicate_data(in, AST_CONTROL_PVT_CAUSE_CODE, f->data.ptr, f->datalen);
1504                                         break;
1505                                 case -1:
1506                                         if (single && !caller_entertained) {
1507                                                 ast_verb(3, "%s stopped sounds\n", ast_channel_name(c));
1508                                                 ast_indicate(in, -1);
1509                                                 pa->sentringing = 0;
1510                                         }
1511                                         break;
1512                                 default:
1513                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass.integer);
1514                                         break;
1515                                 }
1516                                 break;
1517                         case AST_FRAME_VOICE:
1518                         case AST_FRAME_IMAGE:
1519                                 if (caller_entertained) {
1520                                         break;
1521                                 }
1522                                 /* Fall through */
1523                         case AST_FRAME_TEXT:
1524                                 if (single && ast_write(in, f)) {
1525                                         ast_log(LOG_WARNING, "Unable to write frametype: %d\n",
1526                                                 f->frametype);
1527                                 }
1528                                 break;
1529                         case AST_FRAME_HTML:
1530                                 if (single && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML)
1531                                         && ast_channel_sendhtml(in, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1532                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1533                                 }
1534                                 break;
1535                         default:
1536                                 break;
1537                         }
1538                         ast_frfree(f);
1539                 } /* end for */
1540                 if (winner == in) {
1541                         struct ast_frame *f = ast_read(in);
1542 #if 0
1543                         if (f && (f->frametype != AST_FRAME_VOICE))
1544                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1545                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1546                                 printf("Hangup received on %s\n", in->name);
1547 #endif
1548                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass.integer == AST_CONTROL_HANGUP))) {
1549                                 /* Got hung up */
1550                                 *to = -1;
1551                                 strcpy(pa->status, "CANCEL");
1552                                 ast_cdr_noanswer(ast_channel_cdr(in));
1553                                 publish_dial_end_event(in, out_chans, NULL, pa->status);
1554                                 if (f) {
1555                                         if (f->data.uint32) {
1556                                                 ast_channel_hangupcause_set(in, f->data.uint32);
1557                                         }
1558                                         ast_frfree(f);
1559                                 }
1560                                 if (is_cc_recall) {
1561                                         ast_cc_completed(in, "CC completed, although the caller hung up (cancelled)");
1562                                 }
1563                                 return NULL;
1564                         }
1565
1566                         /* now f is guaranteed non-NULL */
1567                         if (f->frametype == AST_FRAME_DTMF) {
1568                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1569                                         const char *context;
1570                                         ast_channel_lock(in);
1571                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1572                                         if (onedigit_goto(in, context, (char) f->subclass.integer, 1)) {
1573                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass.integer);
1574                                                 *to = 0;
1575                                                 ast_cdr_noanswer(ast_channel_cdr(in));
1576                                                 *result = f->subclass.integer;
1577                                                 strcpy(pa->status, "CANCEL");
1578                                                 publish_dial_end_event(in, out_chans, NULL, pa->status);
1579                                                 ast_frfree(f);
1580                                                 ast_channel_unlock(in);
1581                                                 if (is_cc_recall) {
1582                                                         ast_cc_completed(in, "CC completed, but the caller used DTMF to exit");
1583                                                 }
1584                                                 return NULL;
1585                                         }
1586                                         ast_channel_unlock(in);
1587                                 }
1588
1589                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1590                                         detect_disconnect(in, f->subclass.integer, &featurecode)) {
1591                                         ast_verb(3, "User requested call disconnect.\n");
1592                                         *to = 0;
1593                                         strcpy(pa->status, "CANCEL");
1594                                         ast_cdr_noanswer(ast_channel_cdr(in));
1595                                         publish_dial_end_event(in, out_chans, NULL, pa->status);
1596                                         ast_frfree(f);
1597                                         if (is_cc_recall) {
1598                                                 ast_cc_completed(in, "CC completed, but the caller hung up with DTMF");
1599                                         }
1600                                         return NULL;
1601                                 }
1602                         }
1603
1604                         /* Send the frame from the in channel to all outgoing channels. */
1605                         AST_LIST_TRAVERSE(out_chans, o, node) {
1606                                 if (!o->chan || !ast_test_flag64(o, DIAL_STILLGOING)) {
1607                                         /* This outgoing channel has died so don't send the frame to it. */
1608                                         continue;
1609                                 }
1610                                 switch (f->frametype) {
1611                                 case AST_FRAME_HTML:
1612                                         /* Forward HTML stuff */
1613                                         if (!ast_test_flag64(o, DIAL_NOFORWARDHTML)
1614                                                 && ast_channel_sendhtml(o->chan, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1615                                                 ast_log(LOG_WARNING, "Unable to send URL\n");
1616                                         }
1617                                         break;
1618                                 case AST_FRAME_VOICE:
1619                                 case AST_FRAME_IMAGE:
1620                                         if (!single || caller_entertained) {
1621                                                 /*
1622                                                  * We are calling multiple parties or caller is being
1623                                                  * entertained and has thus not been made compatible.
1624                                                  * No need to check any other called parties.
1625                                                  */
1626                                                 goto skip_frame;
1627                                         }
1628                                         /* Fall through */
1629                                 case AST_FRAME_TEXT:
1630                                 case AST_FRAME_DTMF_BEGIN:
1631                                 case AST_FRAME_DTMF_END:
1632                                         if (ast_write(o->chan, f)) {
1633                                                 ast_log(LOG_WARNING, "Unable to forward frametype: %d\n",
1634                                                         f->frametype);
1635                                         }
1636                                         break;
1637                                 case AST_FRAME_CONTROL:
1638                                         switch (f->subclass.integer) {
1639                                         case AST_CONTROL_HOLD:
1640                                                 ast_verb(3, "Call on %s placed on hold\n", ast_channel_name(o->chan));
1641                                                 ast_indicate_data(o->chan, AST_CONTROL_HOLD, f->data.ptr, f->datalen);
1642                                                 break;
1643                                         case AST_CONTROL_UNHOLD:
1644                                                 ast_verb(3, "Call on %s left from hold\n", ast_channel_name(o->chan));
1645                                                 ast_indicate(o->chan, AST_CONTROL_UNHOLD);
1646                                                 break;
1647                                         case AST_CONTROL_VIDUPDATE:
1648                                         case AST_CONTROL_SRCUPDATE:
1649                                         case AST_CONTROL_SRCCHANGE:
1650                                                 if (!single || caller_entertained) {
1651                                                         /*
1652                                                          * We are calling multiple parties or caller is being
1653                                                          * entertained and has thus not been made compatible.
1654                                                          * No need to check any other called parties.
1655                                                          */
1656                                                         goto skip_frame;
1657                                                 }
1658                                                 ast_verb(3, "%s requested media update control %d, passing it to %s\n",
1659                                                         ast_channel_name(in), f->subclass.integer, ast_channel_name(o->chan));
1660                                                 ast_indicate(o->chan, f->subclass.integer);
1661                                                 break;
1662                                         case AST_CONTROL_CONNECTED_LINE:
1663                                                 if (ast_channel_connected_line_sub(in, o->chan, f, 1) &&
1664                                                         ast_channel_connected_line_macro(in, o->chan, f, 0, 1)) {
1665                                                         ast_indicate_data(o->chan, f->subclass.integer, f->data.ptr, f->datalen);
1666                                                 }
1667                                                 break;
1668                                         case AST_CONTROL_REDIRECTING:
1669                                                 if (ast_channel_redirecting_sub(in, o->chan, f, 1) &&
1670                                                         ast_channel_redirecting_macro(in, o->chan, f, 0, 1)) {
1671                                                         ast_indicate_data(o->chan, f->subclass.integer, f->data.ptr, f->datalen);
1672                                                 }
1673                                                 break;
1674                                         default:
1675                                                 /* We are not going to do anything with this frame. */
1676                                                 goto skip_frame;
1677                                         }
1678                                         break;
1679                                 default:
1680                                         /* We are not going to do anything with this frame. */
1681                                         goto skip_frame;
1682                                 }
1683                         }
1684 skip_frame:;
1685                         ast_frfree(f);
1686                 }
1687         }
1688
1689         if (!*to) {
1690                 ast_verb(3, "Nobody picked up in %d ms\n", orig);
1691                 publish_dial_end_event(in, out_chans, NULL, "NOANSWER");
1692         }
1693         if (!*to || ast_check_hangup(in)) {
1694                 ast_cdr_noanswer(ast_channel_cdr(in));
1695         }
1696
1697 #ifdef HAVE_EPOLL
1698         AST_LIST_TRAVERSE(out_chans, epollo, node) {
1699                 if (epollo->chan)
1700                         ast_poll_channel_del(in, epollo->chan);
1701         }
1702 #endif
1703
1704         if (is_cc_recall) {
1705                 ast_cc_completed(in, "Recall completed!");
1706         }
1707         return peer;
1708 }
1709
1710 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str **featurecode)
1711 {
1712         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1713         struct ast_call_feature feature = { 0, };
1714         int res;
1715
1716         ast_str_append(featurecode, 1, "%c", code);
1717
1718         res = ast_feature_detect(chan, &features, ast_str_buffer(*featurecode), &feature);
1719
1720         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1721                 ast_str_reset(*featurecode);
1722         }
1723         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1724                 return 1;
1725         }
1726
1727         return 0;
1728 }
1729
1730 /* returns true if there is a valid privacy reply */
1731 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1732 {
1733         if (res < '1')
1734                 return 0;
1735         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1736                 return 1;
1737         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1738                 return 1;
1739         return 0;
1740 }
1741
1742 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1743         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1744 {
1745
1746         int res2;
1747         int loopcount = 0;
1748
1749         /* Get the user's intro, store it in priv-callerintros/$CID,
1750            unless it is already there-- this should be done before the
1751            call is actually dialed  */
1752
1753         /* all ring indications and moh for the caller has been halted as soon as the
1754            target extension was picked up. We are going to have to kill some
1755            time and make the caller believe the peer hasn't picked up yet */
1756
1757         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1758                 char *original_moh = ast_strdupa(ast_channel_musicclass(chan));
1759                 ast_indicate(chan, -1);
1760                 ast_channel_musicclass_set(chan, opt_args[OPT_ARG_MUSICBACK]);
1761                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1762                 ast_channel_musicclass_set(chan, original_moh);
1763         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1764                 ast_indicate(chan, AST_CONTROL_RINGING);
1765                 pa->sentringing++;
1766         }
1767
1768         /* Start autoservice on the other chan ?? */
1769         res2 = ast_autoservice_start(chan);
1770         /* Now Stream the File */
1771         for (loopcount = 0; loopcount < 3; loopcount++) {
1772                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1773                         break;
1774                 if (!res2) /* on timeout, play the message again */
1775                         res2 = ast_play_and_wait(peer, "priv-callpending");
1776                 if (!valid_priv_reply(opts, res2))
1777                         res2 = 0;
1778                 /* priv-callpending script:
1779                    "I have a caller waiting, who introduces themselves as:"
1780                 */
1781                 if (!res2)
1782                         res2 = ast_play_and_wait(peer, pa->privintro);
1783                 if (!valid_priv_reply(opts, res2))
1784                         res2 = 0;
1785                 /* now get input from the called party, as to their choice */
1786                 if (!res2) {
1787                         /* XXX can we have both, or they are mutually exclusive ? */
1788                         if (ast_test_flag64(opts, OPT_PRIVACY))
1789                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1790                         if (ast_test_flag64(opts, OPT_SCREENING))
1791                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1792                 }
1793
1794                 /*! \page DialPrivacy Dial Privacy scripts
1795                  * \par priv-callee-options script:
1796                  * \li Dial 1 if you wish this caller to reach you directly in the future, 
1797                  *      and immediately connect to their incoming call.
1798                  * \li Dial 2 if you wish to send this caller to voicemail now and forevermore.
1799                  * \li Dial 3 to send this caller to the torture menus, now and forevermore.
1800                  * \li Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1801                  * \li Dial 5 to allow this caller to come straight thru to you in the future,
1802                  *      but right now, just this once, send them to voicemail.
1803                  *
1804                  * \par screen-callee-options script:
1805                  * \li Dial 1 if you wish to immediately connect to the incoming call
1806                  * \li Dial 2 if you wish to send this caller to voicemail.
1807                  * \li Dial 3 to send this caller to the torture menus.
1808                  * \li Dial 4 to send this caller to a simple "go away" menu.
1809                  */
1810                 if (valid_priv_reply(opts, res2))
1811                         break;
1812                 /* invalid option */
1813                 res2 = ast_play_and_wait(peer, "vm-sorry");
1814         }
1815
1816         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1817                 ast_moh_stop(chan);
1818         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1819                 ast_indicate(chan, -1);
1820                 pa->sentringing = 0;
1821         }
1822         ast_autoservice_stop(chan);
1823         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1824                 /* map keypresses to various things, the index is res2 - '1' */
1825                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1826                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1827                 int i = res2 - '1';
1828                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1829                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1830                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1831         }
1832         switch (res2) {
1833         case '1':
1834                 break;
1835         case '2':
1836                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1837                 break;
1838         case '3':
1839                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1840                 break;
1841         case '4':
1842                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1843                 break;
1844         case '5':
1845                 /* XXX should we set status to DENY ? */
1846                 if (ast_test_flag64(opts, OPT_PRIVACY))
1847                         break;
1848                 /* if not privacy, then 5 is the same as "default" case */
1849         default: /* bad input or -1 if failure to start autoservice */
1850                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1851                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1852                           or,... put 'em thru to voicemail. */
1853                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1854                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1855                 /* XXX should we set status to DENY ? */
1856                 /* XXX what about the privacy flags ? */
1857                 break;
1858         }
1859
1860         if (res2 == '1') { /* the only case where we actually connect */
1861                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1862                    just clog things up, and it's not useful information, not being tied to a CID */
1863                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1864                         ast_filedelete(pa->privintro, NULL);
1865                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1866                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1867                         else
1868                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1869                 }
1870                 return 0; /* the good exit path */
1871         } else {
1872                 /* hang up on the callee -- he didn't want to talk anyway! */
1873                 ast_autoservice_chan_hangup_peer(chan, peer);
1874                 return -1;
1875         }
1876 }
1877
1878 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1879 static int setup_privacy_args(struct privacy_args *pa,
1880         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1881 {
1882         char callerid[60];
1883         int res;
1884         char *l;
1885
1886         if (ast_channel_caller(chan)->id.number.valid
1887                 && !ast_strlen_zero(ast_channel_caller(chan)->id.number.str)) {
1888                 l = ast_strdupa(ast_channel_caller(chan)->id.number.str);
1889                 ast_shrink_phone_number(l);
1890                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1891                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1892                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1893                 } else {
1894                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1895                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1896                 }
1897         } else {
1898                 char *tnam, *tn2;
1899
1900                 tnam = ast_strdupa(ast_channel_name(chan));
1901                 /* clean the channel name so slashes don't try to end up in disk file name */
1902                 for (tn2 = tnam; *tn2; tn2++) {
1903                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1904                                 *tn2 = '=';
1905                 }
1906                 ast_verb(3, "Privacy-- callerid is empty\n");
1907
1908                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", ast_channel_exten(chan), tnam);
1909                 l = callerid;
1910                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1911         }
1912
1913         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1914
1915         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1916                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1917                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1918                 pa->privdb_val = AST_PRIVACY_ALLOW;
1919         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1920                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1921         }
1922         
1923         if (pa->privdb_val == AST_PRIVACY_DENY) {
1924                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1925                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1926                 return 0;
1927         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1928                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1929                 return 0; /* Is this right? */
1930         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1931                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1932                 return 0; /* is this right??? */
1933         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1934                 /* Get the user's intro, store it in priv-callerintros/$CID,
1935                    unless it is already there-- this should be done before the
1936                    call is actually dialed  */
1937
1938                 /* make sure the priv-callerintros dir actually exists */
1939                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1940                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1941                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1942                         return -1;
1943                 }
1944
1945                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1946                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1947                         /* the DELUX version of this code would allow this caller the
1948                            option to hear and retape their previously recorded intro.
1949                         */
1950                 } else {
1951                         int duration; /* for feedback from play_and_wait */
1952                         /* the file doesn't exist yet. Let the caller submit his
1953                            vocal intro for posterity */
1954                         /* priv-recordintro script:
1955
1956                            "At the tone, please say your name:"
1957
1958                         */
1959                         int silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1960                         ast_answer(chan);
1961                         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 */
1962                                                                         /* don't think we'll need a lock removed, we took care of
1963                                                                            conflicts by naming the pa.privintro file */
1964                         if (res == -1) {
1965                                 /* Delete the file regardless since they hung up during recording */
1966                                 ast_filedelete(pa->privintro, NULL);
1967                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1968                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1969                                 else
1970                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1971                                 return -1;
1972                         }
1973                         if (!ast_streamfile(chan, "vm-dialout", ast_channel_language(chan)) )
1974                                 ast_waitstream(chan, "");
1975                 }
1976         }
1977         return 1; /* success */
1978 }
1979
1980 static void end_bridge_callback(void *data)
1981 {
1982         char buf[80];
1983         time_t end;
1984         struct ast_channel *chan = data;
1985
1986         if (!ast_channel_cdr(chan)) {
1987                 return;
1988         }
1989
1990         time(&end);
1991
1992         ast_channel_lock(chan);
1993         if (ast_channel_cdr(chan)->answer.tv_sec) {
1994                 snprintf(buf, sizeof(buf), "%ld", (long) end - ast_channel_cdr(chan)->answer.tv_sec);
1995                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1996         }
1997
1998         if (ast_channel_cdr(chan)->start.tv_sec) {
1999                 snprintf(buf, sizeof(buf), "%ld", (long) end - ast_channel_cdr(chan)->start.tv_sec);
2000                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
2001         }
2002         ast_channel_unlock(chan);
2003 }
2004
2005 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
2006         bconfig->end_bridge_callback_data = originator;
2007 }
2008
2009 static int dial_handle_playtones(struct ast_channel *chan, const char *data)
2010 {
2011         struct ast_tone_zone_sound *ts = NULL;
2012         int res;
2013         const char *str = data;
2014
2015         if (ast_strlen_zero(str)) {
2016                 ast_debug(1,"Nothing to play\n");
2017                 return -1;
2018         }
2019
2020         ts = ast_get_indication_tone(ast_channel_zone(chan), str);
2021
2022         if (ts && ts->data[0]) {
2023                 res = ast_playtones_start(chan, 0, ts->data, 0);
2024         } else {
2025                 res = -1;
2026         }
2027
2028         if (ts) {
2029                 ts = ast_tone_zone_sound_unref(ts);
2030         }
2031
2032         if (res) {
2033                 ast_log(LOG_WARNING, "Unable to start playtone \'%s\'\n", str);
2034         }
2035
2036         return res;
2037 }
2038
2039 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
2040 {
2041         int res = -1; /* default: error */
2042         char *rest, *cur; /* scan the list of destinations */
2043         struct dial_head out_chans = AST_LIST_HEAD_NOLOCK_INIT_VALUE; /* list of destinations */
2044         struct chanlist *outgoing;
2045         struct chanlist *tmp;
2046         struct ast_channel *peer;
2047         int to; /* timeout */
2048         struct cause_args num = { chan, 0, 0, 0 };
2049         int cause;
2050
2051         struct ast_bridge_config config = { { 0, } };
2052         struct timeval calldurationlimit = { 0, };
2053         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
2054         struct privacy_args pa = {
2055                 .sentringing = 0,
2056                 .privdb_val = 0,
2057                 .status = "INVALIDARGS",
2058         };
2059         int sentringing = 0, moh = 0;
2060         const char *outbound_group = NULL;
2061         int result = 0;
2062         char *parse;
2063         int opermode = 0;
2064         int delprivintro = 0;
2065         AST_DECLARE_APP_ARGS(args,
2066                 AST_APP_ARG(peers);
2067                 AST_APP_ARG(timeout);
2068                 AST_APP_ARG(options);
2069                 AST_APP_ARG(url);
2070         );
2071         struct ast_flags64 opts = { 0, };
2072         char *opt_args[OPT_ARG_ARRAY_SIZE];
2073         struct ast_datastore *datastore = NULL;
2074         int fulldial = 0, num_dialed = 0;
2075         int ignore_cc = 0;
2076         char device_name[AST_CHANNEL_NAME];
2077         char forced_clid_name[AST_MAX_EXTENSION];
2078         char stored_clid_name[AST_MAX_EXTENSION];
2079         int force_forwards_only;        /*!< TRUE if force CallerID on call forward only. Legacy behaviour.*/
2080         /*!
2081          * \brief Forced CallerID party information to send.
2082          * \note This will not have any malloced strings so do not free it.
2083          */
2084         struct ast_party_id forced_clid;
2085         /*!
2086          * \brief Stored CallerID information if needed.
2087          *
2088          * \note If OPT_ORIGINAL_CLID set then this is the o option
2089          * CallerID.  Otherwise it is the dialplan extension and hint
2090          * name.
2091          *
2092          * \note This will not have any malloced strings so do not free it.
2093          */
2094         struct ast_party_id stored_clid;
2095         /*!
2096          * \brief CallerID party information to store.
2097          * \note This will not have any malloced strings so do not free it.
2098          */
2099         struct ast_party_caller caller;
2100
2101         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
2102         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
2103         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
2104         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
2105         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
2106         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
2107
2108         if (ast_strlen_zero(data)) {
2109                 ast_log(LOG_WARNING, "Dial requires an argument (technology/resource)\n");
2110                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2111                 return -1;
2112         }
2113
2114         parse = ast_strdupa(data);
2115
2116         AST_STANDARD_APP_ARGS(args, parse);
2117
2118         if (!ast_strlen_zero(args.options) &&
2119                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
2120                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2121                 goto done;
2122         }
2123
2124         if (ast_strlen_zero(args.peers)) {
2125                 ast_log(LOG_WARNING, "Dial requires an argument (technology/resource)\n");
2126                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2127                 goto done;
2128         }
2129
2130         if (ast_cc_call_init(chan, &ignore_cc)) {
2131                 goto done;
2132         }
2133
2134         if (ast_test_flag64(&opts, OPT_SCREEN_NOINTRO) && !ast_strlen_zero(opt_args[OPT_ARG_SCREEN_NOINTRO])) {
2135                 delprivintro = atoi(opt_args[OPT_ARG_SCREEN_NOINTRO]);
2136
2137                 if (delprivintro < 0 || delprivintro > 1) {
2138                         ast_log(LOG_WARNING, "Unknown argument %d specified to n option, ignoring\n", delprivintro);
2139                         delprivintro = 0;
2140                 }
2141         }
2142
2143         if (!ast_test_flag64(&opts, OPT_RINGBACK)) {
2144                 opt_args[OPT_ARG_RINGBACK] = NULL;
2145         }
2146
2147         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
2148                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
2149                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
2150         }
2151
2152         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
2153                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
2154                 if (!calldurationlimit.tv_sec) {
2155                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
2156                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2157                         goto done;
2158                 }
2159                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
2160         }
2161
2162         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
2163                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
2164                 dtmfcalled = strsep(&dtmf_progress, ":");
2165                 dtmfcalling = strsep(&dtmf_progress, ":");
2166         }
2167
2168         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
2169                 if (ast_bridge_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
2170                         goto done;
2171         }
2172
2173         /* Setup the forced CallerID information to send if used. */
2174         ast_party_id_init(&forced_clid);
2175         force_forwards_only = 0;
2176         if (ast_test_flag64(&opts, OPT_FORCECLID)) {
2177                 if (ast_strlen_zero(opt_args[OPT_ARG_FORCECLID])) {
2178                         ast_channel_lock(chan);
2179                         forced_clid.number.str = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
2180                         ast_channel_unlock(chan);
2181                         forced_clid_name[0] = '\0';
2182                         forced_clid.name.str = (char *) get_cid_name(forced_clid_name,
2183                                 sizeof(forced_clid_name), chan);
2184                         force_forwards_only = 1;
2185                 } else {
2186                         /* Note: The opt_args[OPT_ARG_FORCECLID] string value is altered here. */
2187                         ast_callerid_parse(opt_args[OPT_ARG_FORCECLID], &forced_clid.name.str,
2188                                 &forced_clid.number.str);
2189                 }
2190                 if (!ast_strlen_zero(forced_clid.name.str)) {
2191                         forced_clid.name.valid = 1;
2192                 }
2193                 if (!ast_strlen_zero(forced_clid.number.str)) {
2194                         forced_clid.number.valid = 1;
2195                 }
2196         }
2197         if (ast_test_flag64(&opts, OPT_FORCE_CID_TAG)
2198                 && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_TAG])) {
2199                 forced_clid.tag = opt_args[OPT_ARG_FORCE_CID_TAG];
2200         }
2201         forced_clid.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
2202         if (ast_test_flag64(&opts, OPT_FORCE_CID_PRES)
2203                 && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_PRES])) {
2204                 int pres;
2205
2206                 pres = ast_parse_caller_presentation(opt_args[OPT_ARG_FORCE_CID_PRES]);
2207                 if (0 <= pres) {
2208                         forced_clid.number.presentation = pres;
2209                 }
2210         }
2211
2212         /* Setup the stored CallerID information if needed. */
2213         ast_party_id_init(&stored_clid);
2214         if (ast_test_flag64(&opts, OPT_ORIGINAL_CLID)) {
2215                 if (ast_strlen_zero(opt_args[OPT_ARG_ORIGINAL_CLID])) {
2216                         ast_channel_lock(chan);
2217                         ast_party_id_set_init(&stored_clid, &ast_channel_caller(chan)->id);
2218                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.name.str)) {
2219                                 stored_clid.name.str = ast_strdupa(ast_channel_caller(chan)->id.name.str);
2220                         }
2221                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.number.str)) {
2222                                 stored_clid.number.str = ast_strdupa(ast_channel_caller(chan)->id.number.str);
2223                         }
2224                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.subaddress.str)) {
2225                                 stored_clid.subaddress.str = ast_strdupa(ast_channel_caller(chan)->id.subaddress.str);
2226                         }
2227                         if (!ast_strlen_zero(ast_channel_caller(chan)->id.tag)) {
2228                                 stored_clid.tag = ast_strdupa(ast_channel_caller(chan)->id.tag);
2229                         }
2230                         ast_channel_unlock(chan);
2231                 } else {
2232                         /* Note: The opt_args[OPT_ARG_ORIGINAL_CLID] string value is altered here. */
2233                         ast_callerid_parse(opt_args[OPT_ARG_ORIGINAL_CLID], &stored_clid.name.str,
2234                                 &stored_clid.number.str);
2235                         if (!ast_strlen_zero(stored_clid.name.str)) {
2236                                 stored_clid.name.valid = 1;
2237                         }
2238                         if (!ast_strlen_zero(stored_clid.number.str)) {
2239                                 stored_clid.number.valid = 1;
2240                         }
2241                 }
2242         } else {
2243                 /*
2244                  * In case the new channel has no preset CallerID number by the
2245                  * channel driver, setup the dialplan extension and hint name.
2246                  */
2247                 stored_clid_name[0] = '\0';
2248                 stored_clid.name.str = (char *) get_cid_name(stored_clid_name,
2249                         sizeof(stored_clid_name), chan);
2250                 if (ast_strlen_zero(stored_clid.name.str)) {
2251                         stored_clid.name.str = NULL;
2252                 } else {
2253                         stored_clid.name.valid = 1;
2254                 }
2255                 ast_channel_lock(chan);
2256                 stored_clid.number.str = ast_strdupa(S_OR(ast_channel_macroexten(chan), ast_channel_exten(chan)));
2257                 stored_clid.number.valid = 1;
2258                 ast_channel_unlock(chan);
2259         }
2260
2261         if (ast_test_flag64(&opts, OPT_RESETCDR) && ast_channel_cdr(chan))
2262                 ast_cdr_reset(ast_channel_cdr(chan), NULL);
2263         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
2264                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(ast_channel_exten(chan));
2265
2266         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
2267                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
2268                 if (res <= 0)
2269                         goto out;
2270                 res = -1; /* reset default */
2271         }
2272
2273         if (continue_exec)
2274                 *continue_exec = 0;
2275
2276         /* If a channel group has been specified, get it for use when we create peer channels */
2277
2278         ast_channel_lock(chan);
2279         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
2280                 outbound_group = ast_strdupa(outbound_group);
2281                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
2282         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
2283                 outbound_group = ast_strdupa(outbound_group);
2284         }
2285         ast_channel_unlock(chan);
2286
2287         /* Set per dial instance flags.  These flags are also passed back to RetryDial. */
2288         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID
2289                 | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_CANCEL_TIMEOUT
2290                 | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB | OPT_FORCECLID);
2291
2292         /* PREDIAL: Run gosub on the caller's channel */
2293         if (ast_test_flag64(&opts, OPT_PREDIAL_CALLER)
2294                 && !ast_strlen_zero(opt_args[OPT_ARG_PREDIAL_CALLER])) {
2295                 ast_replace_subargument_delimiter(opt_args[OPT_ARG_PREDIAL_CALLER]);
2296                 ast_app_exec_sub(NULL, chan, opt_args[OPT_ARG_PREDIAL_CALLER], 0);
2297         }
2298
2299         /* loop through the list of dial destinations */
2300         rest = args.peers;
2301         while ((cur = strsep(&rest, "&")) ) {
2302                 struct ast_channel *tc; /* channel for this destination */
2303                 /* Get a technology/resource pair */
2304                 char *number = cur;
2305                 char *tech = strsep(&number, "/");
2306                 size_t tech_len;
2307                 size_t number_len;
2308                 /* find if we already dialed this interface */
2309                 struct ast_dialed_interface *di;
2310                 AST_LIST_HEAD(,ast_dialed_interface) *dialed_interfaces;
2311
2312                 num_dialed++;
2313                 if (ast_strlen_zero(number)) {
2314                         ast_log(LOG_WARNING, "Dial argument takes format (technology/resource)\n");
2315                         goto out;
2316                 }
2317
2318                 tech_len = strlen(tech) + 1;
2319                 number_len = strlen(number) + 1;
2320                 tmp = ast_calloc(1, sizeof(*tmp) + (2 * tech_len) + number_len);
2321                 if (!tmp) {
2322                         goto out;
2323                 }
2324
2325                 /* Save tech, number, and interface. */
2326                 cur = tmp->stuff;
2327                 strcpy(cur, tech);
2328                 tmp->tech = cur;
2329                 cur += tech_len;
2330                 strcpy(cur, tech);
2331                 cur[tech_len - 1] = '/';
2332                 tmp->interface = cur;
2333                 cur += tech_len;
2334                 strcpy(cur, number);
2335                 tmp->number = cur;
2336
2337                 if (opts.flags) {
2338                         /* Set per outgoing call leg options. */
2339                         ast_copy_flags64(tmp, &opts,
2340                                 OPT_CANCEL_ELSEWHERE |
2341                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
2342                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
2343                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
2344                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
2345                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
2346                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID | OPT_IGNORE_CONNECTEDLINE);
2347                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
2348                 }
2349
2350                 /* Request the peer */
2351
2352                 ast_channel_lock(chan);
2353                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
2354                 /*
2355                  * Seed the chanlist's connected line information with previously
2356                  * acquired connected line info from the incoming channel.  The
2357                  * previously acquired connected line info could have been set
2358                  * through the CONNECTED_LINE dialplan function.
2359                  */
2360                 ast_party_connected_line_copy(&tmp->connected, ast_channel_connected(chan));
2361                 ast_channel_unlock(chan);
2362
2363                 if (datastore)
2364                         dialed_interfaces = datastore->data;
2365                 else {
2366                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
2367                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
2368                                 chanlist_free(tmp);
2369                                 goto out;
2370                         }
2371                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
2372
2373                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
2374                                 ast_datastore_free(datastore);
2375                                 chanlist_free(tmp);
2376                                 goto out;
2377                         }
2378
2379                         datastore->data = dialed_interfaces;
2380                         AST_LIST_HEAD_INIT(dialed_interfaces);
2381
2382                         ast_channel_lock(chan);
2383                         ast_channel_datastore_add(chan, datastore);
2384                         ast_channel_unlock(chan);
2385                 }
2386
2387                 AST_LIST_LOCK(dialed_interfaces);
2388                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
2389                         if (!strcasecmp(di->interface, tmp->interface)) {
2390                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
2391                                         di->interface);
2392                                 break;
2393                         }
2394                 }
2395                 AST_LIST_UNLOCK(dialed_interfaces);
2396                 if (di) {
2397                         fulldial++;
2398                         chanlist_free(tmp);
2399                         continue;
2400                 }
2401
2402                 /* It is always ok to dial a Local interface.  We only keep track of
2403                  * which "real" interfaces have been dialed.  The Local channel will
2404                  * inherit this list so that if it ends up dialing a real interface,
2405                  * it won't call one that has already been called. */
2406                 if (strcasecmp(tmp->tech, "Local")) {
2407                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(tmp->interface)))) {
2408                                 chanlist_free(tmp);
2409                                 goto out;
2410                         }
2411                         strcpy(di->interface, tmp->interface);
2412
2413                         AST_LIST_LOCK(dialed_interfaces);
2414                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
2415                         AST_LIST_UNLOCK(dialed_interfaces);
2416                 }
2417
2418                 tc = ast_request(tmp->tech, ast_channel_nativeformats(chan), chan, tmp->number, &cause);
2419                 if (!tc) {
2420                         /* If we can't, just go on to the next call */
2421                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
2422                                 tmp->tech, cause, ast_cause2str(cause));
2423                         handle_cause(cause, &num);
2424                         if (!rest) {
2425                                 /* we are on the last destination */
2426                                 ast_channel_hangupcause_set(chan, cause);
2427                         }
2428                         if (!ignore_cc && (cause == AST_CAUSE_BUSY || cause == AST_CAUSE_CONGESTION)) {
2429                                 if (!ast_cc_callback(chan, tmp->tech, tmp->number, ast_cc_busy_interface)) {
2430                                         ast_cc_extension_monitor_add_dialstring(chan, tmp->interface, "");
2431                                 }
2432                         }
2433                         chanlist_free(tmp);
2434                         continue;
2435                 }
2436                 ast_channel_get_device_name(tc, device_name, sizeof(device_name));
2437                 if (!ignore_cc) {
2438                         ast_cc_extension_monitor_add_dialstring(chan, tmp->interface, device_name);
2439                 }
2440                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", tmp->number);
2441
2442                 ast_channel_lock_both(tc, chan);
2443
2444                 /* Setup outgoing SDP to match incoming one */
2445                 if (!AST_LIST_FIRST(&out_chans) && !rest && CAN_EARLY_BRIDGE(peerflags, chan, tc)) {
2446                         /* We are on the only destination. */
2447                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
2448                 }
2449                 
2450                 /* Inherit specially named variables from parent channel */
2451                 ast_channel_inherit_variables(chan, tc);
2452                 ast_channel_datastore_inherit(chan, tc);
2453
2454                 ast_channel_appl_set(tc, "AppDial");
2455                 ast_channel_data_set(tc, "(Outgoing Line)");
2456                 memset(ast_channel_whentohangup(tc), 0, sizeof(*ast_channel_whentohangup(tc)));
2457
2458                 /* Determine CallerID to store in outgoing channel. */
2459                 ast_party_caller_set_init(&caller, ast_channel_caller(tc));
2460                 if (ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
2461                         caller.id = stored_clid;
2462                         ast_channel_set_caller_event(tc, &caller, NULL);
2463                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2464                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(tc)->id.number.valid,
2465                         ast_channel_caller(tc)->id.number.str, NULL))) {
2466                         /*
2467                          * The new channel has no preset CallerID number by the channel
2468                          * driver.  Use the dialplan extension and hint name.
2469                          */
2470                         caller.id = stored_clid;
2471                         if (!caller.id.name.valid
2472                                 && !ast_strlen_zero(S_COR(ast_channel_connected(chan)->id.name.valid,
2473                                         ast_channel_connected(chan)->id.name.str, NULL))) {
2474                                 /*
2475                                  * No hint name available.  We have a connected name supplied by
2476                                  * the dialplan we can use instead.
2477                                  */
2478                                 caller.id.name.valid = 1;
2479                                 caller.id.name = ast_channel_connected(chan)->id.name;
2480                         }
2481                         ast_channel_set_caller_event(tc, &caller, NULL);
2482                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2483                 } else if (ast_strlen_zero(S_COR(ast_channel_caller(tc)->id.name.valid, ast_channel_caller(tc)->id.name.str,
2484                         NULL))) {
2485                         /* The new channel has no preset CallerID name by the channel driver. */
2486                         if (!ast_strlen_zero(S_COR(ast_channel_connected(chan)->id.name.valid,
2487                                 ast_channel_connected(chan)->id.name.str, NULL))) {
2488                                 /*
2489                                  * We have a connected name supplied by the dialplan we can
2490                                  * use instead.
2491                                  */
2492                                 caller.id.name.valid = 1;
2493                                 caller.id.name = ast_channel_connected(chan)->id.name;
2494                                 ast_channel_set_caller_event(tc, &caller, NULL);
2495                         }
2496                 }
2497
2498                 /* Determine CallerID for outgoing channel to send. */
2499                 if (ast_test_flag64(peerflags, OPT_FORCECLID) && !force_forwards_only) {
2500                         struct ast_party_connected_line connected;
2501
2502                         ast_party_connected_line_set_init(&connected, ast_channel_connected(tc));
2503                         connected.id = forced_clid;
2504                         ast_channel_set_connected_line(tc, &connected, NULL);
2505                 } else {
2506                         ast_connected_line_copy_from_caller(ast_channel_connected(tc), ast_channel_caller(chan));
2507                 }
2508
2509                 ast_party_redirecting_copy(ast_channel_redirecting(tc), ast_channel_redirecting(chan));
2510
2511                 ast_channel_dialed(tc)->transit_network_select = ast_channel_dialed(chan)->transit_network_select;
2512
2513                 if (!ast_strlen_zero(ast_channel_accountcode(chan))) {
2514                         ast_channel_accountcode_set(tc, ast_channel_accountcode(chan));
2515      &nbs