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