Generic Advice of Charge.
[asterisk/asterisk.git] / apps / app_dial.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2008, Digium, Inc.
5  *
6  * Mark Spencer <markster@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /*! \file
20  *
21  * \brief dial() & retrydial() - Trivial application to dial a channel and send an URL on answer
22  *
23  * \author Mark Spencer <markster@digium.com>
24  *
25  * \ingroup applications
26  */
27
28 /*** MODULEINFO
29         <depend>chan_local</depend>
30  ***/
31
32
33 #include "asterisk.h"
34
35 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
36
37 #include <sys/time.h>
38 #include <sys/signal.h>
39 #include <sys/stat.h>
40 #include <netinet/in.h>
41
42 #include "asterisk/paths.h" /* use ast_config_AST_DATA_DIR */
43 #include "asterisk/lock.h"
44 #include "asterisk/file.h"
45 #include "asterisk/channel.h"
46 #include "asterisk/pbx.h"
47 #include "asterisk/module.h"
48 #include "asterisk/translate.h"
49 #include "asterisk/say.h"
50 #include "asterisk/config.h"
51 #include "asterisk/features.h"
52 #include "asterisk/musiconhold.h"
53 #include "asterisk/callerid.h"
54 #include "asterisk/utils.h"
55 #include "asterisk/app.h"
56 #include "asterisk/causes.h"
57 #include "asterisk/rtp_engine.h"
58 #include "asterisk/cdr.h"
59 #include "asterisk/manager.h"
60 #include "asterisk/privacy.h"
61 #include "asterisk/stringfields.h"
62 #include "asterisk/global_datastores.h"
63 #include "asterisk/dsp.h"
64 #include "asterisk/cel.h"
65 #include "asterisk/aoc.h"
66 #include "asterisk/ccss.h"
67 #include "asterisk/indications.h"
68
69 /*** DOCUMENTATION
70         <application name="Dial" language="en_US">
71                 <synopsis>
72                         Attempt to connect to another device or endpoint and bridge the call.
73                 </synopsis>
74                 <syntax>
75                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
76                                 <argument name="Technology/Resource" required="true">
77                                         <para>Specification of the device(s) to dial.  These must be in the format of
78                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
79                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
80                                         represents a resource available to that particular channel driver.</para>
81                                 </argument>
82                                 <argument name="Technology2/Resource2" required="false" multiple="true">
83                                         <para>Optional extra devices to dial in parallel</para>
84                                         <para>If you need more then one enter them as
85                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
86                                 </argument>
87                         </parameter>
88                         <parameter name="timeout" required="false">
89                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
90                                 <para>If not specified, this defaults to 136 years.</para>
91                         </parameter>
92                         <parameter name="options" required="false">
93                            <optionlist>
94                                 <option name="A">
95                                         <argument name="x" required="true">
96                                                 <para>The file to play to the called party</para>
97                                         </argument>
98                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
99                                 </option>
100                                 <option name="a">
101                                         <para>Immediately answer the calling channel when the called channel answers in
102                                         all cases. Normally, the calling channel is answered when the called channel
103                                         answers, but when options such as A() and M() are used, the calling channel is
104                                         not answered until all actions on the called channel (such as playing an
105                                         announcement) are completed.  This option can be used to answer the calling
106                                         channel before doing anything on the called channel. You will rarely need to use
107                                         this option, the default behavior is adequate in most cases.</para>
108                                 </option>
109                                 <option name="C">
110                                         <para>Reset the call detail record (CDR) for this call.</para>
111                                 </option>
112                                 <option name="c">
113                                         <para>If the Dial() application cancels this call, always set the flag to tell the channel
114                                         driver that the call is answered elsewhere.</para>
115                                 </option>
116                                 <option name="d">
117                                         <para>Allow the calling user to dial a 1 digit extension while waiting for
118                                         a call to be answered. Exit to that extension if it exists in the
119                                         current context, or the context defined in the <variable>EXITCONTEXT</variable> variable,
120                                         if it exists.</para>
121                                 </option>
122                                 <option name="D" argsep=":">
123                                         <argument name="called" />
124                                         <argument name="calling" />
125                                         <argument name="progress" />
126                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
127                                         party has answered, but before the call gets bridged. The 
128                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
129                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
130                                         can be used alone.  If <replaceable>progress</replaceable> is specified, its DTMF is sent
131                                         immediately after receiving a PROGRESS message.</para>
132                                 </option>
133                                 <option name="e">
134                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
135                                 </option>
136                                 <option name="f">
137                                         <argument name="x" required="false" />
138                                         <para>If <replaceable>x</replaceable> is not provided, force the callerid of the <emphasis>calling</emphasis> 
139                                         channel to be set as the extension associated with the channel using a dialplan <literal>hint</literal>.
140                                         For example, some PSTNs do not allow CallerID to be set to anything
141                                         other than the number assigned to the caller. If <replaceable>x</replaceable> is provided, though, then
142                                         this option behaves quite differently. Any outgoing channel created will have its connected party information
143                                         set to <replaceable>x</replaceable></para>
144                                 </option>
145                                 <option name="F" argsep="^">
146                                         <argument name="context" required="false" />
147                                         <argument name="exten" required="false" />
148                                         <argument name="priority" required="true" />
149                                         <para>When the caller hangs up, transfer the called party
150                                         to the specified destination and continue execution at that location.</para>
151                                 </option>
152                                 <option name="F">
153                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
154                                         source channel hangs up.</para>
155                                 </option>
156                                 <option name="g">
157                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
158                                         destination channel hangs up.</para>
159                                 </option>
160                                 <option name="G" argsep="^">
161                                         <argument name="context" required="false" />
162                                         <argument name="exten" required="false" />
163                                         <argument name="priority" required="true" />
164                                         <para>If the call is answered, transfer the calling party to
165                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
166                                         <replaceable>priority</replaceable> plus one.</para>
167                                         <note>
168                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
169                                         </note>
170                                 </option>
171                                 <option name="h">
172                                         <para>Allow the called party to hang up by sending the <literal>*</literal> DTMF digit.</para>
173                                 </option>
174                                 <option name="H">
175                                         <para>Allow the calling party to hang up by hitting the <literal>*</literal> DTMF digit.</para>
176                                 </option>
177                                 <option name="i">
178                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
179                                 </option>
180                                 <option name="I">
181                                         <para>Asterisk will ignore any connected line update requests or redirecting party update
182                                         requests it may receiveon this dial attempt.</para>
183                                 </option>
184                                 <option name="k">
185                                         <para>Allow the called party to enable parking of the call by sending
186                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
187                                 </option>
188                                 <option name="K">
189                                         <para>Allow the calling party to enable parking of the call by sending
190                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
191                                 </option>
192                                 <option name="L" argsep=":">
193                                         <argument name="x" required="true">
194                                                 <para>Maximum call time, in milliseconds</para>
195                                         </argument>
196                                         <argument name="y">
197                                                 <para>Warning time, in milliseconds</para>
198                                         </argument>
199                                         <argument name="z">
200                                                 <para>Repeat time, in milliseconds</para>
201                                         </argument>
202                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
203                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
204                                         <para>This option is affected by the following variables:</para>
205                                         <variablelist>
206                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
207                                                         <value name="yes" default="true" />
208                                                         <value name="no" />
209                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
210                                                 </variable>
211                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
212                                                         <value name="yes" />
213                                                         <value name="no" default="true"/>
214                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
215                                                 </variable>
216                                                 <variable name="LIMIT_TIMEOUT_FILE">
217                                                         <value name="filename"/>
218                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
219                                                         If not set, the time remaining will be announced.</para>
220                                                 </variable>
221                                                 <variable name="LIMIT_CONNECT_FILE">
222                                                         <value name="filename"/>
223                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
224                                                         If not set, the time remaining will be announced.</para>
225                                                 </variable>
226                                                 <variable name="LIMIT_WARNING_FILE">
227                                                         <value name="filename"/>
228                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
229                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
230                                                 </variable>
231                                         </variablelist>
232                                 </option>
233                                 <option name="m">
234                                         <argument name="class" required="false"/>
235                                         <para>Provide hold music to the calling party until a requested
236                                         channel answers. A specific music on hold <replaceable>class</replaceable>
237                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
238                                 </option>
239                                 <option name="M" argsep="^">
240                                         <argument name="macro" required="true">
241                                                 <para>Name of the macro that should be executed.</para>
242                                         </argument>
243                                         <argument name="arg" multiple="true">
244                                                 <para>Macro arguments</para>
245                                         </argument>
246                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
247                                         before connecting to the calling channel. Arguments can be specified to the Macro
248                                         using <literal>^</literal> as a delimiter. The macro can set the variable
249                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
250                                         finished executing:</para>
251                                         <variablelist>
252                                                 <variable name="MACRO_RESULT">
253                                                         <para>If set, this action will be taken after the macro finished executing.</para>
254                                                         <value name="ABORT">
255                                                                 Hangup both legs of the call
256                                                         </value>
257                                                         <value name="CONGESTION">
258                                                                 Behave as if line congestion was encountered
259                                                         </value>
260                                                         <value name="BUSY">
261                                                                 Behave as if a busy signal was encountered
262                                                         </value>
263                                                         <value name="CONTINUE">
264                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
265                                                         </value>
266                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
267                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
268                                                                 Transfer the call to the specified destination.
269                                                         </value>
270                                                 </variable>
271                                         </variablelist>
272                                         <note>
273                                                 <para>You cannot use any additional action post answer options in conjunction
274                                                 with this option. Also, pbx services are not run on the peer (called) channel,
275                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
276                                         </note>
277                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
278                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
279                                         Macro()</para></warning>
280                                 </option>
281                                 <option name="n">
282                                         <argument name="delete">
283                                                 <para>With <replaceable>delete</replaceable> either not specified or set to <literal>0</literal>,
284                                                 the recorded introduction will not be deleted if the caller hangs up while the remote party has not
285                                                 yet answered.</para>
286                                                 <para>With <replaceable>delete</replaceable> set to <literal>1</literal>, the introduction will
287                                                 always be deleted.</para>
288                                         </argument>
289                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
290                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
291                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
292                                         directory.</para>
293                                 </option>
294                                 <option name="N">
295                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
296                                         that if Caller*ID is present, do not screen the call.</para>
297                                 </option>
298                                 <option name="o">
299                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
300                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
301                                         behavior of Asterisk 1.0 and earlier.</para>
302                                 </option>
303                                 <option name="O">
304                                         <argument name="mode">
305                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
306                                                 the originator hanging up will cause the phone to ring back immediately.</para>
307                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
308                                                 flashes the trunk, it will ring their phone back.</para>
309                                         </argument>
310                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
311                                         works when bridging a DAHDI channel to another DAHDI channel
312                                         only. if specified on non-DAHDI interfaces, it will be ignored.
313                                         When the destination answers (presumably an operator services
314                                         station), the originator no longer has control of their line.
315                                         They may hang up, but the switch will not release their line
316                                         until the destination party (the operator) hangs up.</para>
317                                 </option>
318                                 <option name="p">
319                                         <para>This option enables screening mode. This is basically Privacy mode
320                                         without memory.</para>
321                                 </option>
322                                 <option name="P">
323                                         <argument name="x" />
324                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
325                                         it is provided. The current extension is used if a database family/key is not specified.</para>
326                                 </option>
327                                 <option name="r">
328                                         <para>Default: Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
329                                         party until the called channel has answered.</para>
330                                         <argument name="tone" required="false">
331                                                 <para>Indicate progress to calling party. Send audio 'tone' from indications.conf</para>
332                                         </argument>
333                                 </option>
334                                 <option name="S">
335                                         <argument name="x" required="true" />
336                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
337                                         answered the call.</para>
338                                 </option>
339                                 <option name="s">
340                                         <argument name="x" required="true" />
341                                         <para>Force the outgoing callerid tag parameter to be set to the string <replaceable>x</replaceable></para>
342                                 </option>
343                                 <option name="t">
344                                         <para>Allow the called party to transfer the calling party by sending the
345                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
346                                         transfers initiated by other methods.</para>
347                                 </option>
348                                 <option name="T">
349                                         <para>Allow the calling party to transfer the called party by sending the
350                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
351                                         transfers initiated by other methods.</para>
352                                 </option>
353                                 <option name="U" argsep="^">
354                                         <argument name="x" required="true">
355                                                 <para>Name of the subroutine to execute via Gosub</para>
356                                         </argument>
357                                         <argument name="arg" multiple="true" required="false">
358                                                 <para>Arguments for the Gosub routine</para>
359                                         </argument>
360                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
361                                         to the calling channel. Arguments can be specified to the Gosub
362                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
363                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
364                                         <variablelist>
365                                                 <variable name="GOSUB_RESULT">
366                                                         <value name="ABORT">
367                                                                 Hangup both legs of the call.
368                                                         </value>
369                                                         <value name="CONGESTION">
370                                                                 Behave as if line congestion was encountered.
371                                                         </value>
372                                                         <value name="BUSY">
373                                                                 Behave as if a busy signal was encountered.
374                                                         </value>
375                                                         <value name="CONTINUE">
376                                                                 Hangup the called party and allow the calling party
377                                                                 to continue dialplan execution at the next priority.
378                                                         </value>
379                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
380                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
381                                                                 Transfer the call to the specified priority. Optionally, an extension, or
382                                                                 extension and priority can be specified.
383                                                         </value>
384                                                 </variable>
385                                         </variablelist>
386                                         <note>
387                                                 <para>You cannot use any additional action post answer options in conjunction
388                                                 with this option. Also, pbx services are not run on the peer (called) channel,
389                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
390                                         </note>
391                                 </option>
392                                 <option name="u">
393                                         <argument name = "x" required="true">
394                                                 <para>Force the outgoing callerid presentation indicator parameter to be set
395                                                 to one of the values passed in <replaceable>x</replaceable>:
396                                                 <literal>allowed_not_screened</literal>
397                                                 <literal>allowed_passed_screen</literal>
398                                                 <literal>allowed_failed_screen</literal>
399                                                 <literal>allowed</literal>
400                                                 <literal>prohib_not_screened</literal>
401                                                 <literal>prohib_passed_screen</literal>
402                                                 <literal>prohib_failed_screen</literal>
403                                                 <literal>prohib</literal>
404                                                 <literal>unavailable</literal></para>
405                                         </argument>
406                                 </option>
407                                 <option name="w">
408                                         <para>Allow the called party to enable recording of the call by sending
409                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
410                                 </option>
411                                 <option name="W">
412                                         <para>Allow the calling party to enable recording of the call by sending
413                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
414                                 </option>
415                                 <option name="x">
416                                         <para>Allow the called party to enable recording of the call by sending
417                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
418                                 </option>
419                                 <option name="X">
420                                         <para>Allow the calling party to enable recording of the call by sending
421                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
422                                 </option>
423                                 <option name="z">
424                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
425                                 </option>
426                                 </optionlist>
427                         </parameter>
428                         <parameter name="URL">
429                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
430                         </parameter>
431                 </syntax>
432                 <description>
433                         <para>This application will place calls to one or more specified channels. As soon
434                         as one of the requested channels answers, the originating channel will be
435                         answered, if it has not already been answered. These two channels will then
436                         be active in a bridged call. All other channels that were requested will then
437                         be hung up.</para>
438
439                         <para>Unless there is a timeout specified, the Dial application will wait
440                         indefinitely until one of the called channels answers, the user hangs up, or
441                         if all of the called channels are busy or unavailable. Dialplan executing will
442                         continue if no requested channels can be called, or if the timeout expires.
443                         This application will report normal termination if the originating channel
444                         hangs up, or if the call is bridged and either of the parties in the bridge
445                         ends the call.</para>
446                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
447                         application will be put into that group (as in Set(GROUP()=...).
448                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
449                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
450                         however, the variable will be unset after use.</para>
451
452                         <para>This application sets the following channel variables:</para>
453                         <variablelist>
454                                 <variable name="DIALEDTIME">
455                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
456                                 </variable>
457                                 <variable name="ANSWEREDTIME">
458                                         <para>This is the amount of time for actual call.</para>
459                                 </variable>
460                                 <variable name="DIALSTATUS">
461                                         <para>This is the status of the call</para>
462                                         <value name="CHANUNAVAIL" />
463                                         <value name="CONGESTION" />
464                                         <value name="NOANSWER" />
465                                         <value name="BUSY" />
466                                         <value name="ANSWER" />
467                                         <value name="CANCEL" />
468                                         <value name="DONTCALL">
469                                                 For the Privacy and Screening Modes.
470                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
471                                         </value>
472                                         <value name="TORTURE">
473                                                 For the Privacy and Screening Modes.
474                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
475                                         </value>
476                                         <value name="INVALIDARGS" />
477                                 </variable>
478                         </variablelist>
479                 </description>
480         </application>
481         <application name="RetryDial" language="en_US">
482                 <synopsis>
483                         Place a call, retrying on failure allowing an optional exit extension.
484                 </synopsis>
485                 <syntax>
486                         <parameter name="announce" required="true">
487                                 <para>Filename of sound that will be played when no channel can be reached</para>
488                         </parameter>
489                         <parameter name="sleep" required="true">
490                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
491                         </parameter>
492                         <parameter name="retries" required="true">
493                                 <para>Number of retries</para>
494                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
495                         </parameter>
496                         <parameter name="dialargs" required="true">
497                                 <para>Same format as arguments provided to the Dial application</para>
498                         </parameter>
499                 </syntax>
500                 <description>
501                         <para>This application will attempt to place a call using the normal Dial application.
502                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
503                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
504                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
505                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
506                         While waiting to retry a call, a 1 digit extension may be dialed. If that
507                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
508                         one, The call will jump to that extension immediately.
509                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
510                         to the Dial application.</para>
511                 </description>
512         </application>
513  ***/
514
515 static const char app[] = "Dial";
516 static const char rapp[] = "RetryDial";
517
518 enum {
519         OPT_ANNOUNCE =          (1 << 0),
520         OPT_RESETCDR =          (1 << 1),
521         OPT_DTMF_EXIT =         (1 << 2),
522         OPT_SENDDTMF =          (1 << 3),
523         OPT_FORCECLID =         (1 << 4),
524         OPT_GO_ON =             (1 << 5),
525         OPT_CALLEE_HANGUP =     (1 << 6),
526         OPT_CALLER_HANGUP =     (1 << 7),
527         OPT_ORIGINAL_CLID =     (1 << 8),
528         OPT_DURATION_LIMIT =    (1 << 9),
529         OPT_MUSICBACK =         (1 << 10),
530         OPT_CALLEE_MACRO =      (1 << 11),
531         OPT_SCREEN_NOINTRO =    (1 << 12),
532         OPT_SCREEN_NOCALLERID = (1 << 13),
533         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
534         OPT_SCREENING =         (1 << 15),
535         OPT_PRIVACY =           (1 << 16),
536         OPT_RINGBACK =          (1 << 17),
537         OPT_DURATION_STOP =     (1 << 18),
538         OPT_CALLEE_TRANSFER =   (1 << 19),
539         OPT_CALLER_TRANSFER =   (1 << 20),
540         OPT_CALLEE_MONITOR =    (1 << 21),
541         OPT_CALLER_MONITOR =    (1 << 22),
542         OPT_GOTO =              (1 << 23),
543         OPT_OPERMODE =          (1 << 24),
544         OPT_CALLEE_PARK =       (1 << 25),
545         OPT_CALLER_PARK =       (1 << 26),
546         OPT_IGNORE_FORWARDING = (1 << 27),
547         OPT_CALLEE_GOSUB =      (1 << 28),
548         OPT_CALLEE_MIXMONITOR = (1 << 29),
549         OPT_CALLER_MIXMONITOR = (1 << 30),
550         OPT_CALLER_ANSWER =     (1 << 31),
551 };
552
553 #define DIAL_STILLGOING      (1 << 31)
554 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
555 #define DIAL_CALLERID_ABSENT ((uint64_t)1 << 33) /* TRUE if caller id is not available for connected line. */
556 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 34)
557 #define OPT_PEER_H           ((uint64_t)1 << 35)
558 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 36)
559 #define OPT_CANCEL_TIMEOUT   ((uint64_t)1 << 37)
560 #define OPT_FORCE_CID_TAG    ((uint64_t)1 << 38)
561 #define OPT_FORCE_CID_PRES   ((uint64_t)1 << 39)
562
563 enum {
564         OPT_ARG_ANNOUNCE = 0,
565         OPT_ARG_SENDDTMF,
566         OPT_ARG_GOTO,
567         OPT_ARG_DURATION_LIMIT,
568         OPT_ARG_MUSICBACK,
569         OPT_ARG_CALLEE_MACRO,
570         OPT_ARG_RINGBACK,
571         OPT_ARG_CALLEE_GOSUB,
572         OPT_ARG_CALLEE_GO_ON,
573         OPT_ARG_PRIVACY,
574         OPT_ARG_DURATION_STOP,
575         OPT_ARG_OPERMODE,
576         OPT_ARG_SCREEN_NOINTRO,
577         OPT_ARG_FORCECLID,
578         OPT_ARG_FORCE_CID_TAG,
579         OPT_ARG_FORCE_CID_PRES,
580         /* note: this entry _MUST_ be the last one in the enum */
581         OPT_ARG_ARRAY_SIZE,
582 };
583
584 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
585         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
586         AST_APP_OPTION('a', OPT_CALLER_ANSWER),
587         AST_APP_OPTION('C', OPT_RESETCDR),
588         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
589         AST_APP_OPTION('d', OPT_DTMF_EXIT),
590         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
591         AST_APP_OPTION('e', OPT_PEER_H),
592         AST_APP_OPTION_ARG('f', OPT_FORCECLID, OPT_ARG_FORCECLID),
593         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
594         AST_APP_OPTION('g', OPT_GO_ON),
595         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
596         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
597         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
598         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
599         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
600         AST_APP_OPTION('k', OPT_CALLEE_PARK),
601         AST_APP_OPTION('K', OPT_CALLER_PARK),
602         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
603         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
604         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
605         AST_APP_OPTION_ARG('n', OPT_SCREEN_NOINTRO, OPT_ARG_SCREEN_NOINTRO),
606         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
607         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
608         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
609         AST_APP_OPTION('p', OPT_SCREENING),
610         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
611         AST_APP_OPTION_ARG('r', OPT_RINGBACK, OPT_ARG_RINGBACK),
612         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
613         AST_APP_OPTION_ARG('s', OPT_FORCE_CID_TAG, OPT_ARG_FORCE_CID_TAG),
614         AST_APP_OPTION_ARG('u', OPT_FORCE_CID_PRES, OPT_ARG_FORCE_CID_PRES),
615         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
616         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
617         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
618         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
619         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
620         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
621         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
622         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
623 END_OPTIONS );
624
625 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
626         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
627         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK |  \
628         OPT_CALLER_PARK | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB) && \
629         !chan->audiohooks && !peer->audiohooks)
630
631 /*
632  * The list of active channels
633  */
634 struct chanlist {
635         struct chanlist *next;
636         struct ast_channel *chan;
637         uint64_t flags;
638         /*! Saved connected party info from an AST_CONTROL_CONNECTED_LINE. */
639         struct ast_party_connected_line connected;
640         /*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
641         unsigned int pending_connected_update:1;
642         struct ast_aoc_decoded *aoc_s_rate_list;
643 };
644
645 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
646
647 static void chanlist_free(struct chanlist *outgoing)
648 {
649         ast_party_connected_line_free(&outgoing->connected);
650         ast_aoc_destroy_decoded(outgoing->aoc_s_rate_list);
651         ast_free(outgoing);
652 }
653
654 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
655 {
656         /* Hang up a tree of stuff */
657         struct chanlist *oo;
658         while (outgoing) {
659                 /* Hangup any existing lines we have open */
660                 if (outgoing->chan && (outgoing->chan != exception)) {
661                         if (answered_elsewhere) {
662                                 /* The flag is used for local channel inheritance and stuff */
663                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
664                                 /* This is for the channel drivers */
665                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
666                         }
667                         ast_hangup(outgoing->chan);
668                 }
669                 oo = outgoing;
670                 outgoing = outgoing->next;
671                 chanlist_free(oo);
672         }
673 }
674
675 #define AST_MAX_WATCHERS 256
676
677 /*
678  * argument to handle_cause() and other functions.
679  */
680 struct cause_args {
681         struct ast_channel *chan;
682         int busy;
683         int congestion;
684         int nochan;
685 };
686
687 static void handle_cause(int cause, struct cause_args *num)
688 {
689         struct ast_cdr *cdr = num->chan->cdr;
690
691         switch(cause) {
692         case AST_CAUSE_BUSY:
693                 if (cdr)
694                         ast_cdr_busy(cdr);
695                 num->busy++;
696                 break;
697
698         case AST_CAUSE_CONGESTION:
699                 if (cdr)
700                         ast_cdr_failed(cdr);
701                 num->congestion++;
702                 break;
703
704         case AST_CAUSE_NO_ROUTE_DESTINATION:
705         case AST_CAUSE_UNREGISTERED:
706                 if (cdr)
707                         ast_cdr_failed(cdr);
708                 num->nochan++;
709                 break;
710
711         case AST_CAUSE_NO_ANSWER:
712                 if (cdr) {
713                         ast_cdr_noanswer(cdr);
714                 }
715                 break;
716         case AST_CAUSE_NORMAL_CLEARING:
717                 break;
718
719         default:
720                 num->nochan++;
721                 break;
722         }
723 }
724
725 /*! \brief free the buffer if allocated, and set the pointer to the second arg */
726 #define S_REPLACE(s, new_val) \
727         do {                      \
728                 ast_free(s);          \
729                 s = (new_val);        \
730         } while (0)
731
732 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
733 {
734         char rexten[2] = { exten, '\0' };
735
736         if (context) {
737                 if (!ast_goto_if_exists(chan, context, rexten, pri))
738                         return 1;
739         } else {
740                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
741                         return 1;
742                 else if (!ast_strlen_zero(chan->macrocontext)) {
743                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
744                                 return 1;
745                 }
746         }
747         return 0;
748 }
749
750 /* do not call with chan lock held */
751 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
752 {
753         const char *context;
754         const char *exten;
755
756         ast_channel_lock(chan);
757         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
758         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
759         ast_channel_unlock(chan);
760
761         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
762 }
763
764 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
765 {
766         struct ast_channel *chans[] = { src, dst };
767         ast_manager_event_multichan(EVENT_FLAG_CALL, "Dial", 2, chans,
768                 "SubEvent: Begin\r\n"
769                 "Channel: %s\r\n"
770                 "Destination: %s\r\n"
771                 "CallerIDNum: %s\r\n"
772                 "CallerIDName: %s\r\n"
773                 "UniqueID: %s\r\n"
774                 "DestUniqueID: %s\r\n"
775                 "Dialstring: %s\r\n",
776                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
777                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
778                 dst->uniqueid, dialstring ? dialstring : "");
779 }
780
781 static void senddialendevent(struct ast_channel *src, const char *dialstatus)
782 {
783         ast_manager_event(src, EVENT_FLAG_CALL, "Dial",
784                 "SubEvent: End\r\n"
785                 "Channel: %s\r\n"
786                 "UniqueID: %s\r\n"
787                 "DialStatus: %s\r\n",
788                 src->name, src->uniqueid, dialstatus);
789 }
790
791 /*!
792  * helper function for wait_for_answer()
793  *
794  * XXX this code is highly suspicious, as it essentially overwrites
795  * the outgoing channel without properly deleting it.
796  *
797  * \todo eventually this function should be intergrated into and replaced by ast_call_forward() 
798  */
799 static void do_forward(struct chanlist *o,
800         struct cause_args *num, struct ast_flags64 *peerflags, int single, int *to)
801 {
802         char tmpchan[256];
803         struct ast_channel *original = o->chan;
804         struct ast_channel *c = o->chan; /* the winner */
805         struct ast_channel *in = num->chan; /* the input channel */
806         char *stuff;
807         char *tech;
808         int cause;
809
810         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
811         if ((stuff = strchr(tmpchan, '/'))) {
812                 *stuff++ = '\0';
813                 tech = tmpchan;
814         } else {
815                 const char *forward_context;
816                 ast_channel_lock(c);
817                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
818                 if (ast_strlen_zero(forward_context)) {
819                         forward_context = NULL;
820                 }
821                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
822                 ast_channel_unlock(c);
823                 stuff = tmpchan;
824                 tech = "Local";
825         }
826
827         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, c->call_forward, NULL);
828
829         /* Before processing channel, go ahead and check for forwarding */
830         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
831         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
832         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
833                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
834                 c = o->chan = NULL;
835                 cause = AST_CAUSE_BUSY;
836         } else {
837                 /* Setup parameters */
838                 c = o->chan = ast_request(tech, in->nativeformats, in, stuff, &cause);
839                 if (c) {
840                         if (single)
841                                 ast_channel_make_compatible(o->chan, in);
842                         ast_channel_inherit_variables(in, o->chan);
843                         ast_channel_datastore_inherit(in, o->chan);
844                         /* When a call is forwarded, we don't want to track new interfaces
845                          * dialed for CC purposes. Setting the done flag will ensure that
846                          * any Dial operations that happen later won't record CC interfaces.
847                          */
848                         ast_ignore_cc(o->chan);
849                         ast_log(LOG_NOTICE, "Not accepting call completion offers from call-forward recipient %s\n", o->chan->name);
850                 } else
851                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
852         }
853         if (!c) {
854                 ast_clear_flag64(o, DIAL_STILLGOING);
855                 handle_cause(cause, num);
856                 ast_hangup(original);
857         } else {
858                 if (single && CAN_EARLY_BRIDGE(peerflags, c, in)) {
859                         ast_rtp_instance_early_bridge_make_compatible(c, in);
860                 }
861
862                 ast_channel_set_redirecting(c, &original->redirecting);
863                 ast_channel_lock(c);
864                 while (ast_channel_trylock(in)) {
865                         CHANNEL_DEADLOCK_AVOIDANCE(c);
866                 }
867                 if (ast_strlen_zero(c->redirecting.from.number)) {
868                         /*
869                          * The call was not previously redirected so it is
870                          * now redirected from this number.
871                          */
872                         S_REPLACE(c->redirecting.from.number,
873                                 ast_strdup(S_OR(in->macroexten, in->exten)));
874                 }
875
876                 c->cid.cid_tns = in->cid.cid_tns;
877
878                 if (ast_test_flag64(o, OPT_FORCECLID)) {
879                         S_REPLACE(c->cid.cid_num, ast_strdup(S_OR(in->macroexten, in->exten)));
880                         S_REPLACE(c->cid.cid_name, NULL);
881                         ast_string_field_set(c, accountcode, c->accountcode);
882                 } else {
883                         ast_party_caller_copy(&c->cid, &in->cid);
884                         ast_string_field_set(c, accountcode, in->accountcode);
885                 }
886                 ast_party_connected_line_copy(&c->connected, &original->connected);
887                 c->appl = "AppDial";
888                 c->data = "(Outgoing Line)";
889                 /*
890                  * We must unlock c before calling ast_channel_redirecting_macro, because
891                  * we put c into autoservice there. That is pretty much a guaranteed
892                  * deadlock. This is why the handling of c's lock may seem a bit unusual
893                  * here.
894                  */
895                 ast_channel_unlock(c);
896                 if (ast_channel_redirecting_macro(c, in, &c->redirecting, 1, 0)) {
897                         while (ast_channel_trylock(c)) {
898                                 CHANNEL_DEADLOCK_AVOIDANCE(in);
899                         }
900                         ast_channel_update_redirecting(in, &c->redirecting);
901                         ast_channel_unlock(c);
902                 }
903
904                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
905                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
906                         *to = -1;
907                 }
908
909                 ast_channel_unlock(in);
910
911                 if (ast_call(c, tmpchan, 0)) {
912                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
913                         ast_clear_flag64(o, DIAL_STILLGOING);
914                         ast_hangup(original);
915                         ast_hangup(c);
916                         c = o->chan = NULL;
917                         num->nochan++;
918                 } else {
919                         ast_channel_lock(c);
920                         while (ast_channel_trylock(in)) {
921                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
922                         }
923                         senddialevent(in, c, stuff);
924                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
925                                 char cidname[AST_MAX_EXTENSION] = "";
926                                 const char *tmpexten;
927                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
928                                 ast_channel_unlock(in);
929                                 ast_channel_unlock(c);
930                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
931                         } else {
932                                 ast_channel_unlock(in);
933                                 ast_channel_unlock(c);
934                         }
935                         /* Hangup the original channel now, in case we needed it */
936                         ast_hangup(original);
937                 }
938                 if (single) {
939                         ast_indicate(in, -1);
940                 }
941         }
942 }
943
944 /* argument used for some functions. */
945 struct privacy_args {
946         int sentringing;
947         int privdb_val;
948         char privcid[256];
949         char privintro[1024];
950         char status[256];
951 };
952
953 static struct ast_channel *wait_for_answer(struct ast_channel *in,
954         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
955         char *opt_args[],
956         struct privacy_args *pa,
957         const struct cause_args *num_in, int *result, char *dtmf_progress,
958         const int ignore_cc)
959 {
960         struct cause_args num = *num_in;
961         int prestart = num.busy + num.congestion + num.nochan;
962         int orig = *to;
963         struct ast_channel *peer = NULL;
964         /* single is set if only one destination is enabled */
965         int single = outgoing && !outgoing->next;
966 #ifdef HAVE_EPOLL
967         struct chanlist *epollo;
968 #endif
969         struct ast_party_connected_line connected_caller;
970         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
971         int cc_recall_core_id;
972         int is_cc_recall;
973         int cc_frame_received = 0;
974         int num_ringing = 0;
975
976         ast_party_connected_line_init(&connected_caller);
977         if (single) {
978                 /* Turn off hold music, etc */
979                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK)) {
980                         ast_deactivate_generator(in);
981                         /* If we are calling a single channel, and not providing ringback or music, */
982                         /* then, make them compatible for in-band tone purpose */
983                         ast_channel_make_compatible(outgoing->chan, in);
984                 }
985
986                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_CALLERID_ABSENT)) {
987                         ast_channel_lock(outgoing->chan);
988                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->cid);
989                         ast_channel_unlock(outgoing->chan);
990                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
991                         ast_channel_update_connected_line(in, &connected_caller);
992                         ast_party_connected_line_free(&connected_caller);
993                 }
994         }
995
996         is_cc_recall = ast_cc_is_recall(in, &cc_recall_core_id, NULL);
997
998 #ifdef HAVE_EPOLL
999         for (epollo = outgoing; epollo; epollo = epollo->next)
1000                 ast_poll_channel_add(in, epollo->chan);
1001 #endif
1002
1003         while (*to && !peer) {
1004                 struct chanlist *o;
1005                 int pos = 0; /* how many channels do we handle */
1006                 int numlines = prestart;
1007                 struct ast_channel *winner;
1008                 struct ast_channel *watchers[AST_MAX_WATCHERS];
1009
1010                 watchers[pos++] = in;
1011                 for (o = outgoing; o; o = o->next) {
1012                         /* Keep track of important channels */
1013                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
1014                                 watchers[pos++] = o->chan;
1015                         numlines++;
1016                 }
1017                 if (pos == 1) { /* only the input channel is available */
1018                         if (numlines == (num.busy + num.congestion + num.nochan)) {
1019                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1020                                 if (num.busy)
1021                                         strcpy(pa->status, "BUSY");
1022                                 else if (num.congestion)
1023                                         strcpy(pa->status, "CONGESTION");
1024                                 else if (num.nochan)
1025                                         strcpy(pa->status, "CHANUNAVAIL");
1026                         } else {
1027                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1028                         }
1029                         *to = 0;
1030                         if (is_cc_recall) {
1031                                 ast_cc_failed(cc_recall_core_id, "Everyone is busy/congested for the recall. How sad");
1032                         }
1033                         return NULL;
1034                 }
1035                 winner = ast_waitfor_n(watchers, pos, to);
1036                 for (o = outgoing; o; o = o->next) {
1037                         struct ast_frame *f;
1038                         struct ast_channel *c = o->chan;
1039
1040                         if (c == NULL)
1041                                 continue;
1042                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
1043                                 if (!peer) {
1044                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
1045                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1046                                                 if (o->pending_connected_update) {
1047                                                         if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1048                                                                 ast_channel_update_connected_line(in, &o->connected);
1049                                                         }
1050                                                 } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1051                                                         ast_channel_lock(c);
1052                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
1053                                                         ast_channel_unlock(c);
1054                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1055                                                         ast_channel_update_connected_line(in, &connected_caller);
1056                                                         ast_party_connected_line_free(&connected_caller);
1057                                                 }
1058                                         }
1059                                         if (o->aoc_s_rate_list) {
1060                                                 size_t encoded_size;
1061                                                 struct ast_aoc_encoded *encoded;
1062                                                 if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1063                                                         ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1064                                                         ast_aoc_destroy_encoded(encoded);
1065                                                 }
1066                                         }
1067                                         peer = c;
1068                                         ast_copy_flags64(peerflags, o,
1069                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1070                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1071                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1072                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1073                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1074                                                 DIAL_NOFORWARDHTML);
1075                                         ast_string_field_set(c, dialcontext, "");
1076                                         ast_copy_string(c->exten, "", sizeof(c->exten));
1077                                 }
1078                                 continue;
1079                         }
1080                         if (c != winner)
1081                                 continue;
1082                         /* here, o->chan == c == winner */
1083                         if (!ast_strlen_zero(c->call_forward)) {
1084                                 pa->sentringing = 0;
1085                                 if (!ignore_cc && (f = ast_read(c))) {
1086                                         if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_CC) {
1087                                                 /* This channel is forwarding the call, and is capable of CC, so
1088                                                  * be sure to add the new device interface to the list
1089                                                  */
1090                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1091                                         }
1092                                         ast_frfree(f);
1093                                 }
1094                                 do_forward(o, &num, peerflags, single, to);
1095                                 continue;
1096                         }
1097                         f = ast_read(winner);
1098                         if (!f) {
1099                                 in->hangupcause = c->hangupcause;
1100 #ifdef HAVE_EPOLL
1101                                 ast_poll_channel_del(in, c);
1102 #endif
1103                                 ast_hangup(c);
1104                                 c = o->chan = NULL;
1105                                 ast_clear_flag64(o, DIAL_STILLGOING);
1106                                 handle_cause(in->hangupcause, &num);
1107                                 continue;
1108                         }
1109                         if (f->frametype == AST_FRAME_CONTROL) {
1110                                 switch (f->subclass.integer) {
1111                                 case AST_CONTROL_ANSWER:
1112                                         /* This is our guy if someone answered. */
1113                                         if (!peer) {
1114                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
1115                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1116                                                         if (o->pending_connected_update) {
1117                                                                 if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1118                                                                         ast_channel_update_connected_line(in, &o->connected);
1119                                                                 }
1120                                                         } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1121                                                                 ast_channel_lock(c);
1122                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
1123                                                                 ast_channel_unlock(c);
1124                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1125                                                                 ast_channel_update_connected_line(in, &connected_caller);
1126                                                                 ast_party_connected_line_free(&connected_caller);
1127                                                         }
1128                                                 }
1129                                                 if (o->aoc_s_rate_list) {
1130                                                         size_t encoded_size;
1131                                                         struct ast_aoc_encoded *encoded;
1132                                                         if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1133                                                                 ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1134                                                                 ast_aoc_destroy_encoded(encoded);
1135                                                         }
1136                                                 }
1137                                                 peer = c;
1138                                                 if (peer->cdr) {
1139                                                         peer->cdr->answer = ast_tvnow();
1140                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
1141                                                 }
1142                                                 ast_copy_flags64(peerflags, o,
1143                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1144                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1145                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1146                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1147                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1148                                                         DIAL_NOFORWARDHTML);
1149                                                 ast_string_field_set(c, dialcontext, "");
1150                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
1151                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1152                                                         /* Setup early bridge if appropriate */
1153                                                         ast_channel_early_bridge(in, peer);
1154                                         }
1155                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1156                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1157                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1158                                         break;
1159                                 case AST_CONTROL_BUSY:
1160                                         ast_verb(3, "%s is busy\n", c->name);
1161                                         in->hangupcause = c->hangupcause;
1162                                         ast_hangup(c);
1163                                         c = o->chan = NULL;
1164                                         ast_clear_flag64(o, DIAL_STILLGOING);
1165                                         handle_cause(AST_CAUSE_BUSY, &num);
1166                                         break;
1167                                 case AST_CONTROL_CONGESTION:
1168                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1169                                         in->hangupcause = c->hangupcause;
1170                                         ast_hangup(c);
1171                                         c = o->chan = NULL;
1172                                         ast_clear_flag64(o, DIAL_STILLGOING);
1173                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1174                                         break;
1175                                 case AST_CONTROL_RINGING:
1176                                         /* This is a tricky area to get right when using a native
1177                                          * CC agent. The reason is that we do the best we can to send only a
1178                                          * single ringing notification to the caller.
1179                                          *
1180                                          * Call completion complicates the logic used here. CCNR is typically
1181                                          * offered during a ringing message. Let's say that party A calls
1182                                          * parties B, C, and D. B and C do not support CC requests, but D
1183                                          * does. If we were to receive a ringing notification from B before
1184                                          * the others, then we would end up sending a ringing message to
1185                                          * A with no CCNR offer present.
1186                                          *
1187                                          * The approach that we have taken is that if we receive a ringing
1188                                          * response from a party and no CCNR offer is present, we need to
1189                                          * wait. Specifically, we need to wait until either a) a called party
1190                                          * offers CCNR in its ringing response or b) all called parties have
1191                                          * responded in some way to our call and none offers CCNR.
1192                                          *
1193                                          * The drawback to this is that if one of the parties has a delayed
1194                                          * response or, god forbid, one just plain doesn't respond to our
1195                                          * outgoing call, then this will result in a significant delay between
1196                                          * when the caller places the call and hears ringback.
1197                                          *
1198                                          * Note also that if CC is disabled for this call, then it is perfectly
1199                                          * fine for ringing frames to get sent through.
1200                                          */
1201                                         ++num_ringing;
1202                                         if (ignore_cc || cc_frame_received || num_ringing == numlines) {
1203                                                 ast_verb(3, "%s is ringing\n", c->name);
1204                                                 /* Setup early media if appropriate */
1205                                                 if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1206                                                         ast_channel_early_bridge(in, c);
1207                                                 if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK) && ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
1208                                                         ast_indicate(in, AST_CONTROL_RINGING);
1209                                                         pa->sentringing++;
1210                                                 }
1211                                         }
1212                                         break;
1213                                 case AST_CONTROL_PROGRESS:
1214                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1215                                         /* Setup early media if appropriate */
1216                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1217                                                 ast_channel_early_bridge(in, c);
1218                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1219                                                 if (single || (!single && !pa->sentringing)) {
1220                                                         ast_indicate(in, AST_CONTROL_PROGRESS);
1221                                                 }
1222                                                 if(!ast_strlen_zero(dtmf_progress)) {
1223                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1224                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1225                                                 }
1226                                         break;
1227                                 case AST_CONTROL_VIDUPDATE:
1228                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1229                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1230                                         break;
1231                                 case AST_CONTROL_SRCUPDATE:
1232                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1233                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1234                                         break;
1235                                 case AST_CONTROL_CONNECTED_LINE:
1236                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1237                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1238                                         } else if (!single) {
1239                                                 struct ast_party_connected_line connected;
1240                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1241                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1242                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1243                                                 ast_party_connected_line_set(&o->connected, &connected);
1244                                                 ast_party_connected_line_free(&connected);
1245                                                 o->pending_connected_update = 1;
1246                                         } else {
1247                                                 if (ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1248                                                         ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1249                                                 }
1250                                         }
1251                                         break;
1252                                 case AST_CONTROL_AOC:
1253                                         {
1254                                                 struct ast_aoc_decoded *decoded = ast_aoc_decode(f->data.ptr, f->datalen, o->chan);
1255                                                 if (decoded && (ast_aoc_get_msg_type(decoded) == AST_AOC_S)) {
1256                                                         ast_aoc_destroy_decoded(o->aoc_s_rate_list);
1257                                                         o->aoc_s_rate_list = decoded;
1258                                                 } else {
1259                                                         ast_aoc_destroy_decoded(decoded);
1260                                                 }
1261                                         }
1262                                         break;
1263                                 case AST_CONTROL_REDIRECTING:
1264                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1265                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1266                                         } else {
1267                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1268                                                 if (ast_channel_redirecting_macro(c, in, f, 1, 1)) {
1269                                                         ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1270                                                 }
1271                                                 pa->sentringing = 0;
1272                                         }
1273                                         break;
1274                                 case AST_CONTROL_PROCEEDING:
1275                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1276                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1277                                                 ast_channel_early_bridge(in, c);
1278                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1279                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1280                                         break;
1281                                 case AST_CONTROL_HOLD:
1282                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1283                                         ast_indicate(in, AST_CONTROL_HOLD);
1284                                         break;
1285                                 case AST_CONTROL_UNHOLD:
1286                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1287                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1288                                         break;
1289                                 case AST_CONTROL_OFFHOOK:
1290                                 case AST_CONTROL_FLASH:
1291                                         /* Ignore going off hook and flash */
1292                                         break;
1293                                 case AST_CONTROL_CC:
1294                                         if (!ignore_cc) {
1295                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1296                                                 cc_frame_received = 1;
1297                                         }
1298                                         break;
1299                                 case -1:
1300                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1301                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1302                                                 ast_indicate(in, -1);
1303                                                 pa->sentringing = 0;
1304                                         }
1305                                         break;
1306                                 default:
1307                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass.integer);
1308                                 }
1309                         } else if (single) {
1310                                 switch (f->frametype) {
1311                                         case AST_FRAME_VOICE:
1312                                         case AST_FRAME_IMAGE:
1313                                         case AST_FRAME_TEXT:
1314                                                 if (ast_write(in, f)) {
1315                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1316                                                 }
1317                                                 break;
1318                                         case AST_FRAME_HTML:
1319                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1320                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1321                                                 }
1322                                                 break;
1323                                         default:
1324                                                 break;
1325                                 }
1326                         }
1327                         ast_frfree(f);
1328                 } /* end for */
1329                 if (winner == in) {
1330                         struct ast_frame *f = ast_read(in);
1331 #if 0
1332                         if (f && (f->frametype != AST_FRAME_VOICE))
1333                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1334                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1335                                 printf("Hangup received on %s\n", in->name);
1336 #endif
1337                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass.integer == AST_CONTROL_HANGUP))) {
1338                                 /* Got hung up */
1339                                 *to = -1;
1340                                 strcpy(pa->status, "CANCEL");
1341                                 ast_cdr_noanswer(in->cdr);
1342                                 if (f) {
1343                                         if (f->data.uint32) {
1344                                                 in->hangupcause = f->data.uint32;
1345                                         }
1346                                         ast_frfree(f);
1347                                 }
1348                                 if (is_cc_recall) {
1349                                         ast_cc_completed(in, "CC completed, although the caller hung up (cancelled)");
1350                                 }
1351                                 return NULL;
1352                         }
1353
1354                         /* now f is guaranteed non-NULL */
1355                         if (f->frametype == AST_FRAME_DTMF) {
1356                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1357                                         const char *context;
1358                                         ast_channel_lock(in);
1359                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1360                                         if (onedigit_goto(in, context, (char) f->subclass.integer, 1)) {
1361                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass.integer);
1362                                                 *to = 0;
1363                                                 ast_cdr_noanswer(in->cdr);
1364                                                 *result = f->subclass.integer;
1365                                                 strcpy(pa->status, "CANCEL");
1366                                                 ast_frfree(f);
1367                                                 ast_channel_unlock(in);
1368                                                 if (is_cc_recall) {
1369                                                         ast_cc_completed(in, "CC completed, but the caller used DTMF to exit");
1370                                                 }
1371                                                 return NULL;
1372                                         }
1373                                         ast_channel_unlock(in);
1374                                 }
1375
1376                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1377                                         detect_disconnect(in, f->subclass.integer, featurecode)) {
1378                                         ast_verb(3, "User requested call disconnect.\n");
1379                                         *to = 0;
1380                                         strcpy(pa->status, "CANCEL");
1381                                         ast_cdr_noanswer(in->cdr);
1382                                         ast_frfree(f);
1383                                         if (is_cc_recall) {
1384                                                 ast_cc_completed(in, "CC completed, but the caller hung up with DTMF");
1385                                         }
1386                                         return NULL;
1387                                 }
1388                         }
1389
1390                         /* Forward HTML stuff */
1391                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1392                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen) == -1)
1393                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1394
1395                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1396                                 if (ast_write(outgoing->chan, f))
1397                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1398                         }
1399                         if (single && (f->frametype == AST_FRAME_CONTROL)) { 
1400                                 if ((f->subclass.integer == AST_CONTROL_HOLD) ||
1401                                     (f->subclass.integer == AST_CONTROL_UNHOLD) ||
1402                                     (f->subclass.integer == AST_CONTROL_VIDUPDATE) ||
1403                                     (f->subclass.integer == AST_CONTROL_SRCUPDATE) ||
1404                                     (f->subclass.integer == AST_CONTROL_REDIRECTING)) {
1405                                         ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass.integer, outgoing->chan->name);
1406                                         ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1407                                 } else if (f->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
1408                                         if (ast_channel_connected_line_macro(in, outgoing->chan, f, 0, 1)) {
1409                                                 ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1410                                         }
1411                                 } else if (f->subclass.integer == AST_CONTROL_REDIRECTING) {
1412                                         if (ast_channel_redirecting_macro(in, outgoing->chan, f, 0, 1)) {
1413                                                 ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1414                                         }
1415                                 }
1416                         }
1417                         ast_frfree(f);
1418                 }
1419                 if (!*to)
1420                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1421                 if (!*to || ast_check_hangup(in))
1422                         ast_cdr_noanswer(in->cdr);
1423         }
1424
1425 #ifdef HAVE_EPOLL
1426         for (epollo = outgoing; epollo; epollo = epollo->next) {
1427                 if (epollo->chan)
1428                         ast_poll_channel_del(in, epollo->chan);
1429         }
1430 #endif
1431
1432         if (is_cc_recall) {
1433                 ast_cc_completed(in, "Recall completed!");
1434         }
1435         return peer;
1436 }
1437
1438 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1439 {
1440         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1441         struct ast_call_feature feature = { 0, };
1442         int res;
1443
1444         ast_str_append(&featurecode, 1, "%c", code);
1445
1446         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1447
1448         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1449                 ast_str_reset(featurecode);
1450         }
1451         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1452                 return 1;
1453         }
1454
1455         return 0;
1456 }
1457
1458 static void replace_macro_delimiter(char *s)
1459 {
1460         for (; *s; s++)
1461                 if (*s == '^')
1462                         *s = ',';
1463 }
1464
1465 /* returns true if there is a valid privacy reply */
1466 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1467 {
1468         if (res < '1')
1469                 return 0;
1470         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1471                 return 1;
1472         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1473                 return 1;
1474         return 0;
1475 }
1476
1477 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1478         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1479 {
1480
1481         int res2;
1482         int loopcount = 0;
1483
1484         /* Get the user's intro, store it in priv-callerintros/$CID,
1485            unless it is already there-- this should be done before the
1486            call is actually dialed  */
1487
1488         /* all ring indications and moh for the caller has been halted as soon as the
1489            target extension was picked up. We are going to have to kill some
1490            time and make the caller believe the peer hasn't picked up yet */
1491
1492         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1493                 char *original_moh = ast_strdupa(chan->musicclass);
1494                 ast_indicate(chan, -1);
1495                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1496                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1497                 ast_string_field_set(chan, musicclass, original_moh);
1498         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1499                 ast_indicate(chan, AST_CONTROL_RINGING);
1500                 pa->sentringing++;
1501         }
1502
1503         /* Start autoservice on the other chan ?? */
1504         res2 = ast_autoservice_start(chan);
1505         /* Now Stream the File */
1506         for (loopcount = 0; loopcount < 3; loopcount++) {
1507                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1508                         break;
1509                 if (!res2) /* on timeout, play the message again */
1510                         res2 = ast_play_and_wait(peer, "priv-callpending");
1511                 if (!valid_priv_reply(opts, res2))
1512                         res2 = 0;
1513                 /* priv-callpending script:
1514                    "I have a caller waiting, who introduces themselves as:"
1515                 */
1516                 if (!res2)
1517                         res2 = ast_play_and_wait(peer, pa->privintro);
1518                 if (!valid_priv_reply(opts, res2))
1519                         res2 = 0;
1520                 /* now get input from the called party, as to their choice */
1521                 if (!res2) {
1522                         /* XXX can we have both, or they are mutually exclusive ? */
1523                         if (ast_test_flag64(opts, OPT_PRIVACY))
1524                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1525                         if (ast_test_flag64(opts, OPT_SCREENING))
1526                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1527                 }
1528                 /*! \page DialPrivacy Dial Privacy scripts
1529                 \par priv-callee-options script:
1530                         "Dial 1 if you wish this caller to reach you directly in the future,
1531                                 and immediately connect to their incoming call
1532                          Dial 2 if you wish to send this caller to voicemail now and
1533                                 forevermore.
1534                          Dial 3 to send this caller to the torture menus, now and forevermore.
1535                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1536                          Dial 5 to allow this caller to come straight thru to you in the future,
1537                                 but right now, just this once, send them to voicemail."
1538                 \par screen-callee-options script:
1539                         "Dial 1 if you wish to immediately connect to the incoming call
1540                          Dial 2 if you wish to send this caller to voicemail.
1541                          Dial 3 to send this caller to the torture menus.
1542                          Dial 4 to send this caller to a simple "go away" menu.
1543                 */
1544                 if (valid_priv_reply(opts, res2))
1545                         break;
1546                 /* invalid option */
1547                 res2 = ast_play_and_wait(peer, "vm-sorry");
1548         }
1549
1550         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1551                 ast_moh_stop(chan);
1552         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1553                 ast_indicate(chan, -1);
1554                 pa->sentringing = 0;
1555         }
1556         ast_autoservice_stop(chan);
1557         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1558                 /* map keypresses to various things, the index is res2 - '1' */
1559                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1560                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1561                 int i = res2 - '1';
1562                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1563                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1564                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1565         }
1566         switch (res2) {
1567         case '1':
1568                 break;
1569         case '2':
1570                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1571                 break;
1572         case '3':
1573                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1574                 break;
1575         case '4':
1576                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1577                 break;
1578         case '5':
1579                 /* XXX should we set status to DENY ? */
1580                 if (ast_test_flag64(opts, OPT_PRIVACY))
1581                         break;
1582                 /* if not privacy, then 5 is the same as "default" case */
1583         default: /* bad input or -1 if failure to start autoservice */
1584                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1585                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1586                           or,... put 'em thru to voicemail. */
1587                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1588                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1589                 /* XXX should we set status to DENY ? */
1590                 /* XXX what about the privacy flags ? */
1591                 break;
1592         }
1593
1594         if (res2 == '1') { /* the only case where we actually connect */
1595                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1596                    just clog things up, and it's not useful information, not being tied to a CID */
1597                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1598                         ast_filedelete(pa->privintro, NULL);
1599                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1600                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1601                         else
1602                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1603                 }
1604                 return 0; /* the good exit path */
1605         } else {
1606                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1607                 return -1;
1608         }
1609 }
1610
1611 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1612 static int setup_privacy_args(struct privacy_args *pa,
1613         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1614 {
1615         char callerid[60];
1616         int res;
1617         char *l;
1618         int silencethreshold;
1619
1620         if (!ast_strlen_zero(chan->cid.cid_num)) {
1621                 l = ast_strdupa(chan->cid.cid_num);
1622                 ast_shrink_phone_number(l);
1623                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1624                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1625                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1626                 } else {
1627                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1628                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1629                 }
1630         } else {
1631                 char *tnam, *tn2;
1632
1633                 tnam = ast_strdupa(chan->name);
1634                 /* clean the channel name so slashes don't try to end up in disk file name */
1635                 for (tn2 = tnam; *tn2; tn2++) {
1636                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1637                                 *tn2 = '=';
1638                 }
1639                 ast_verb(3, "Privacy-- callerid is empty\n");
1640
1641                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1642                 l = callerid;
1643                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1644         }
1645
1646         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1647
1648         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1649                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1650                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1651                 pa->privdb_val = AST_PRIVACY_ALLOW;
1652         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1653                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1654         }
1655         
1656         if (pa->privdb_val == AST_PRIVACY_DENY) {
1657                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1658                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1659                 return 0;
1660         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1661                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1662                 return 0; /* Is this right? */
1663         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1664                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1665                 return 0; /* is this right??? */
1666         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1667                 /* Get the user's intro, store it in priv-callerintros/$CID,
1668                    unless it is already there-- this should be done before the
1669                    call is actually dialed  */
1670
1671                 /* make sure the priv-callerintros dir actually exists */
1672                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1673                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1674                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1675                         return -1;
1676                 }
1677
1678                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1679                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1680                         /* the DELUX version of this code would allow this caller the
1681                            option to hear and retape their previously recorded intro.
1682                         */
1683                 } else {
1684                         int duration; /* for feedback from play_and_wait */
1685                         /* the file doesn't exist yet. Let the caller submit his
1686                            vocal intro for posterity */
1687                         /* priv-recordintro script:
1688
1689                            "At the tone, please say your name:"
1690
1691                         */
1692                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1693                         ast_answer(chan);
1694                         res = ast_play_and_record(chan, "priv-recordintro", pa->privintro, 4, "gsm", &duration, silencethreshold, 2000, 0);  /* NOTE: I've reduced the total time to 4 sec */
1695                                                                         /* don't think we'll need a lock removed, we took care of
1696                                                                            conflicts by naming the pa.privintro file */
1697                         if (res == -1) {
1698                                 /* Delete the file regardless since they hung up during recording */
1699                                 ast_filedelete(pa->privintro, NULL);
1700                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1701                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1702                                 else
1703                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1704                                 return -1;
1705                         }
1706                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1707                                 ast_waitstream(chan, "");
1708                 }
1709         }
1710         return 1; /* success */
1711 }
1712
1713 static void end_bridge_callback(void *data)
1714 {
1715         char buf[80];
1716         time_t end;
1717         struct ast_channel *chan = data;
1718
1719         if (!chan->cdr) {
1720                 return;
1721         }
1722
1723         time(&end);
1724
1725         ast_channel_lock(chan);
1726         if (chan->cdr->answer.tv_sec) {
1727                 snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->answer.tv_sec);
1728                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1729         }
1730
1731         if (chan->cdr->start.tv_sec) {
1732                 snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->start.tv_sec);
1733                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1734         }
1735         ast_channel_unlock(chan);
1736 }
1737
1738 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1739         bconfig->end_bridge_callback_data = originator;
1740 }
1741
1742 static int dial_handle_playtones(struct ast_channel *chan, const char *data)
1743 {
1744         struct ast_tone_zone_sound *ts = NULL;
1745         int res;
1746         const char *str = data;
1747
1748         if (ast_strlen_zero(str)) {
1749                 ast_debug(1,"Nothing to play\n");
1750                 return -1;
1751         }
1752
1753         ts = ast_get_indication_tone(chan->zone, str);
1754
1755         if (ts && ts->data[0]) {
1756                 res = ast_playtones_start(chan, 0, ts->data, 0);
1757         } else {
1758                 res = -1;
1759         }
1760
1761         if (ts) {
1762                 ts = ast_tone_zone_sound_unref(ts);
1763         }
1764
1765         if (res) {
1766                 ast_log(LOG_WARNING, "Unable to start playtone \'%s\'\n", str);
1767         }
1768
1769         return res;
1770 }
1771
1772 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
1773 {
1774         int res = -1; /* default: error */
1775         char *rest, *cur; /* scan the list of destinations */
1776         struct chanlist *outgoing = NULL; /* list of destinations */
1777         struct ast_channel *peer;
1778         int to; /* timeout */
1779         struct cause_args num = { chan, 0, 0, 0 };
1780         int cause;
1781         char numsubst[256];
1782         char *cid_num = NULL, *cid_name = NULL, *cid_tag = NULL, *cid_pres = NULL;
1783
1784         struct ast_bridge_config config = { { 0, } };
1785         struct timeval calldurationlimit = { 0, };
1786         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1787         struct privacy_args pa = {
1788                 .sentringing = 0,
1789                 .privdb_val = 0,
1790                 .status = "INVALIDARGS",
1791         };
1792         int sentringing = 0, moh = 0;
1793         const char *outbound_group = NULL;
1794         int result = 0;
1795         char *parse;
1796         int opermode = 0;
1797         int delprivintro = 0;
1798         AST_DECLARE_APP_ARGS(args,
1799                 AST_APP_ARG(peers);
1800                 AST_APP_ARG(timeout);
1801                 AST_APP_ARG(options);
1802                 AST_APP_ARG(url);
1803         );
1804         struct ast_flags64 opts = { 0, };
1805         char *opt_args[OPT_ARG_ARRAY_SIZE];
1806         struct ast_datastore *datastore = NULL;
1807         int fulldial = 0, num_dialed = 0;
1808         int ignore_cc = 0;
1809         char device_name[AST_CHANNEL_NAME];
1810
1811         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1812         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1813         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1814         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1815         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1816         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1817
1818         if (ast_strlen_zero(data)) {
1819                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1820                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1821                 return -1;
1822         }
1823
1824         parse = ast_strdupa(data);
1825
1826         AST_STANDARD_APP_ARGS(args, parse);
1827
1828         if (!ast_strlen_zero(args.options) &&
1829                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1830                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1831                 goto done;
1832         }
1833
1834         if (ast_strlen_zero(args.peers)) {
1835                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1836                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1837                 goto done;
1838         }
1839
1840         if (ast_cc_call_init(chan, &ignore_cc)) {
1841                 goto done;
1842         }
1843
1844         if (ast_test_flag64(&opts, OPT_SCREEN_NOINTRO) && !ast_strlen_zero(opt_args[OPT_ARG_SCREEN_NOINTRO])) {
1845                 delprivintro = atoi(opt_args[OPT_ARG_SCREEN_NOINTRO]);
1846
1847                 if (delprivintro < 0 || delprivintro > 1) {
1848                         ast_log(LOG_WARNING, "Unknown argument %d specified to n option, ignoring\n", delprivintro);
1849                         delprivintro = 0;
1850                 }
1851         }
1852
1853         if (!ast_test_flag64(&opts, OPT_RINGBACK)) {
1854                 opt_args[OPT_ARG_RINGBACK] = NULL;
1855         }
1856
1857         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1858                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1859                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1860         }
1861
1862         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1863                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1864                 if (!calldurationlimit.tv_sec) {
1865                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1866                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1867                         goto done;
1868                 }
1869                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1870         }
1871
1872         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1873                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1874                 dtmfcalled = strsep(&dtmf_progress, ":");
1875                 dtmfcalling = strsep(&dtmf_progress, ":");
1876         }
1877
1878         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1879                 if (ast_bridge_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1880                         goto done;
1881         }
1882
1883         if (ast_test_flag64(&opts, OPT_FORCECLID) && !ast_strlen_zero(opt_args[OPT_ARG_FORCECLID]))
1884                 ast_callerid_parse(opt_args[OPT_ARG_FORCECLID], &cid_name, &cid_num);
1885         if (ast_test_flag64(&opts, OPT_FORCE_CID_TAG) && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_TAG]))
1886                 cid_tag = ast_strdupa(opt_args[OPT_ARG_FORCE_CID_TAG]);
1887         if (ast_test_flag64(&opts, OPT_FORCE_CID_PRES) && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_PRES]))
1888                 cid_pres = ast_strdupa(opt_args[OPT_ARG_FORCE_CID_PRES]);
1889         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1890                 ast_cdr_reset(chan->cdr, NULL);
1891         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1892                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1893
1894         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1895                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1896                 if (res <= 0)
1897                         goto out;
1898                 res = -1; /* reset default */
1899         }
1900
1901         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1902                 __ast_answer(chan, 0, 0);
1903         }
1904
1905         if (continue_exec)
1906                 *continue_exec = 0;
1907
1908         /* If a channel group has been specified, get it for use when we create peer channels */
1909
1910         ast_channel_lock(chan);
1911         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1912                 outbound_group = ast_strdupa(outbound_group);   
1913                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1914         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1915                 outbound_group = ast_strdupa(outbound_group);
1916         }
1917         ast_channel_unlock(chan);       
1918         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_IGNORE_CONNECTEDLINE |
1919                          OPT_CANCEL_TIMEOUT | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB | OPT_FORCECLID);
1920
1921         /* loop through the list of dial destinations */
1922         rest = args.peers;
1923         while ((cur = strsep(&rest, "&")) ) {
1924                 struct chanlist *tmp;
1925                 struct ast_channel *tc; /* channel for this destination */
1926                 /* Get a technology/[device:]number pair */
1927                 char *number = cur;
1928                 char *interface = ast_strdupa(number);
1929                 char *tech = strsep(&number, "/");
1930                 /* find if we already dialed this interface */
1931                 struct ast_dialed_interface *di;
1932                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1933                 num_dialed++;
1934                 if (!number) {
1935                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1936                         goto out;
1937                 }
1938                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1939                         goto out;
1940                 if (opts.flags) {
1941                         ast_copy_flags64(tmp, &opts,
1942                                 OPT_CANCEL_ELSEWHERE |
1943                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1944                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1945                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1946                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1947                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1948                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1949                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1950                 }
1951                 ast_copy_string(numsubst, number, sizeof(numsubst));
1952                 /* Request the peer */
1953
1954                 ast_channel_lock(chan);
1955                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1956                 /*
1957                  * Seed the chanlist's connected line information with previously
1958                  * acquired connected line info from the incoming channel.  The
1959                  * previously acquired connected line info could have been set
1960                  * through the CONNECTED_LINE dialplan function.
1961                  */
1962                 ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1963                 ast_channel_unlock(chan);
1964
1965                 if (datastore)
1966                         dialed_interfaces = datastore->data;
1967                 else {
1968                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1969                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1970                                 chanlist_free(tmp);
1971                                 goto out;
1972                         }
1973
1974                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1975
1976                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1977                                 ast_datastore_free(datastore);
1978                                 chanlist_free(tmp);
1979                                 goto out;
1980                         }
1981
1982                         datastore->data = dialed_interfaces;
1983                         AST_LIST_HEAD_INIT(dialed_interfaces);
1984
1985                         ast_channel_lock(chan);
1986                         ast_channel_datastore_add(chan, datastore);
1987                         ast_channel_unlock(chan);
1988                 }
1989
1990                 AST_LIST_LOCK(dialed_interfaces);
1991                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1992                         if (!strcasecmp(di->interface, interface)) {
1993                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1994                                         di->interface);
1995                                 break;
1996                         }
1997                 }
1998                 AST_LIST_UNLOCK(dialed_interfaces);
1999
2000                 if (di) {
2001                         fulldial++;
2002                         chanlist_free(tmp);
2003                         continue;
2004                 }
2005
2006                 /* It is always ok to dial a Local interface.  We only keep track of
2007                  * which "real" interfaces have been dialed.  The Local channel will
2008                  * inherit this list so that if it ends up dialing a real interface,
2009                  * it won't call one that has already been called. */
2010                 if (strcasecmp(tech, "Local")) {
2011                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
2012                                 AST_LIST_UNLOCK(dialed_interfaces);
2013                                 chanlist_free(tmp);
2014                                 goto out;
2015                         }
2016                         strcpy(di->interface, interface);
2017
2018                         AST_LIST_LOCK(dialed_interfaces);
2019                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
2020                         AST_LIST_UNLOCK(dialed_interfaces);
2021                 }
2022
2023                 tc = ast_request(tech, chan->nativeformats, chan, numsubst, &cause);
2024                 if (!tc) {
2025                         /* If we can't, just go on to the next call */
2026                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
2027                                 tech, cause, ast_cause2str(cause));
2028                         handle_cause(cause, &num);
2029                         if (!rest) /* we are on the last destination */
2030                                 chan->hangupcause = cause;
2031                         chanlist_free(tmp);
2032                         if (!ignore_cc && (cause == AST_CAUSE_BUSY || cause == AST_CAUSE_CONGESTION)) {
2033                                 if (!ast_cc_callback(chan, tech, numsubst, ast_cc_busy_interface)) {
2034                                         ast_cc_extension_monitor_add_dialstring(chan, interface, "");
2035                                 }
2036                         }
2037                         continue;
2038                 }
2039                 ast_channel_get_device_name(tc, device_name, sizeof(device_name));
2040                 if (!ignore_cc) {
2041                         ast_cc_extension_monitor_add_dialstring(chan, interface, device_name);
2042                 }
2043                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
2044
2045                 ast_channel_lock(tc);
2046                 while (ast_channel_trylock(chan)) {
2047                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
2048                 }
2049                 /* Setup outgoing SDP to match incoming one */
2050                 if (!outgoing && !rest && CAN_EARLY_BRIDGE(peerflags, chan, tc)) {
2051                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
2052                 }
2053                 
2054                 /* Inherit specially named variables from parent channel */
2055                 ast_channel_inherit_variables(chan, tc);
2056                 ast_channel_datastore_inherit(chan, tc);
2057
2058                 tc->appl = "AppDial";
2059                 tc->data = "(Outgoing Line)";
2060                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
2061
2062                 /* If the new channel has no callerid, try to guess what it should be */
2063                 if (ast_strlen_zero(tc->cid.cid_num)) {
2064                         if (!ast_strlen_zero(chan->connected.id.number)) {
2065                                 ast_set_callerid(tc, chan->connected.id.number, chan->connected.id.name, chan->connected.ani);
2066                         } else if (!ast_strlen_zero(chan->cid.cid_dnid)) {
2067                                 ast_set_callerid(tc, chan->cid.cid_dnid, NULL, NULL);
2068                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
2069                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
2070                         }
2071                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2072                 }
2073
2074                 if (ast_test_flag64(peerflags, OPT_FORCECLID) && !ast_strlen_zero(opt_args[OPT_ARG_FORCECLID])) {
2075                         struct ast_party_connected_line connected;
2076                         int pres;
2077
2078                         ast_party_connected_line_set_init(&connected, &tmp->chan->connected);
2079                         connected.id.number = cid_num;
2080                         connected.id.name = cid_name;
2081                         connected.id.tag = cid_tag;
2082                         if (cid_pres) {
2083                                 pres = ast_parse_caller_presentation(cid_pres);
2084                                 if (pres >= 0) {
2085                                         connected.id.number_presentation = pres;
2086                                 }
2087                         } else {
2088                                 connected.id.number_presentation = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
2089                         }
2090                         ast_channel_set_connected_line(tmp->chan, &connected);
2091                 } else {
2092                         ast_connected_line_copy_from_caller(&tc->connected, &chan->cid);
2093                 }
2094
2095                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
2096
2097                 tc->cid.cid_tns = chan->cid.cid_tns;
2098
2099                 if (!ast_strlen_zero(chan->accountcode)) {
2100                         ast_string_field_set(tc, peeraccount, chan->accountcode);
2101                 }
2102                 if (ast_strlen_zero(tc->musicclass))
2103                         ast_string_field_set(tc, musicclass, chan->musicclass);
2104
2105                 /* Pass ADSI CPE and transfer capability */
2106                 tc->adsicpe = chan->adsicpe;
2107                 tc->transfercapability = chan->transfercapability;
2108
2109                 /* If we have an outbound group, set this peer channel to it */
2110                 if (outbound_group)
2111                         ast_app_group_set_channel(tc, outbound_group);
2112                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
2113                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
2114                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
2115
2116                 /* Check if we're forced by configuration */
2117                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
2118                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
2119
2120
2121                 /* Inherit context and extension */
2122                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
2123                 if (!ast_strlen_zero(chan->macroexten))
2124                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
2125                 else
2126                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
2127
2128                 ast_channel_unlock(tc);
2129                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
2130
2131                 /* Save the info in cdr's that we called them */
2132                 if (chan->cdr)
2133                         ast_cdr_setdestchan(chan->cdr, tc->name);
2134
2135                 /* check the results of ast_call */
2136                 if (res) {
2137                         /* Again, keep going even if there's an error */
2138                         ast_debug(1, "ast call on peer returned %d\n", res);
2139                         ast_verb(3, "Couldn't call %s\n", numsubst);
2140                         if (tc->hangupcause) {
2141                                 chan->hangupcause = tc->hangupcause;
2142                         }
2143                         ast_channel_unlock(chan);
2144                         ast_cc_call_failed(chan, tc, interface);
2145                         ast_hangup(tc);
2146                         tc = NULL;
2147                         chanlist_free(tmp);
2148                         continue;
2149                 } else {
2150                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
2151                         senddialevent(chan, tc, numsubst);
2152                         ast_verb(3, "Called %s\n", numsubst);
2153                         ast_channel_unlock(chan);
2154                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
2155                                 char cidname[AST_MAX_EXTENSION];
2156                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
2157                         }
2158                 }
2159                 /* Put them in the list of outgoing thingies...  We're ready now.
2160                    XXX If we're forcibly removed, these outgoing calls won't get
2161                    hung up XXX */
2162                 ast_set_flag64(tmp, DIAL_STILLGOING);
2163                 tmp->chan = tc;
2164                 tmp->next = outgoing;
2165                 outgoing = tmp;
2166                 /* If this line is up, don't try anybody else */
2167                 if (outgoing->chan->_state == AST_STATE_UP)
2168                         break;
2169         }
2170         
2171         if (ast_strlen_zero(args.timeout)) {
2172                 to = -1;
2173         } else {
2174                 to = atoi(args.timeout);
2175                 if (to > 0)
2176                         to *= 1000;
2177                 else {
2178                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
2179                         to = -1;
2180                 }
2181         }
2182
2183         if (!outgoing) {
2184                 strcpy(pa.status, "CHANUNAVAIL");
2185                 if (fulldial == num_dialed) {
2186                         res = -1;
2187                         goto out;
2188                 }
2189         } else {
2190                 /* Our status will at least be NOANSWER */
2191                 strcpy(pa.status, "NOANSWER");
2192                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
2193                         moh = 1;
2194                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
2195                                 char *original_moh = ast_strdupa(chan->musicclass);
2196                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
2197                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
2198                                 ast_string_field_set(chan, musicclass, original_moh);
2199                         } else {
2200                                 ast_moh_start(chan, NULL, NULL);
2201                         }
2202                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2203                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
2204                         if (!ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
2205                                 if (dial_handle_playtones(chan, opt_args[OPT_ARG_RINGBACK])){
2206                                         ast_indicate(chan, AST_CONTROL_RINGING);
2207                                         sentringing++;
2208                                 } else {
2209                                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2210                                 }
2211                         } else {
2212                                 ast_indicate(chan, AST_CONTROL_RINGING);
2213                                 sentringing++;
2214                         }
2215                 }
2216         }
2217
2218         peer = wait_for_answer(chan, outgoing, &to, peerflags, opt_args, &pa, &num, &result, dtmf_progress, ignore_cc);
2219
2220         /* The ast_channel_datastore_remove() function could fail here if the
2221          * datastore was moved to another channel during a masquerade. If this is
2222          * the case, don't free the datastore here because later, when the channel
2223          * to which the datastore was moved hangs up, it will attempt to free this
2224          * datastore again, causing a crash
2225          */
2226         if (!ast_channel_datastore_remove(chan, datastore))
2227                 ast_datastore_free(datastore);
2228         if (!peer) {
2229                 if (result) {
2230                         res = result;
2231                 } else if (to) { /* Musta gotten hung up */
2232                         res = -1;
2233                 } else { /* Nobody answered, next please? */
2234                         res = 0;
2235                 }
2236
2237                 /* SIP, in particular, sends back this error code to indicate an
2238                  * overlap dialled number needs more digits. */
2239                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
2240                         res = AST_PBX_INCOMPLETE;
2241                 }
2242
2243                 /* almost done, although the 'else' block is 400 lines */
2244         } else {
2245                 const char *number;
2246
2247                 if (ast_test_flag64(&opts, OPT_CALLER_ANSWER))
2248                         ast_answer(chan);
2249
2250                 strcpy(pa.status, "ANSWER");
2251                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2252                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
2253                    we will always return with -1 so that it is hung up properly after the
2254                    conversation.  */
2255                 hanguptree(outgoing, peer, 1);
2256                 outgoing = NULL;
2257                 /* If appropriate, log that we have a destination channel and set the answer time */
2258                 if (chan->cdr) {
2259                         ast_cdr_setdestchan(chan->cdr, peer->name);
2260                         ast_cdr_setanswer(chan->cdr, peer->cdr->answer);
2261                 }
2262                 if (peer->name)
2263                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
2264                 
2265                 ast_channel_lock(peer);
2266                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
2267                 if (!number)
2268                         number = numsubst;
2269                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
2270                 ast_channel_unlock(peer);
2271
2272                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
2273                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
2274                         ast_channel_sendurl( peer, args.url );
2275                 }
2276                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
2277                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
2278                                 res = 0;
2279                                 goto out;
2280                         }
2281                 }
2282                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
2283                         res = 0;
2284                 } else {
2285                         int digit = 0;
2286                         struct ast_channel *chans[2];
2287                         struct ast_channel *active_chan;
2288
2289                         chans[0] = chan;
2290                         chans[1] = peer;
2291
2292                         /* we need to stream the announcment while monitoring the caller for a hangup */
2293
2294                         /* stream the file */
2295                         res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2296                         if (res) {
2297                                 res = 0;
2298                                 ast_log(LOG_ERROR, "error streaming file '%s' to callee\n", opt_args[OPT_ARG_ANNOUNCE]);
2299                         }
2300
2301                         ast_set_flag(peer, AST_FLAG_END_DTMF_ONLY);
2302                         while (peer->stream) {
2303                                 int ms;
2304
2305                                 ms = ast_sched_wait(peer->sched);
2306
2307                                 if (ms < 0 && !peer->timingfunc) {
2308                                         ast_stopstream(peer);
2309                                         break;
2310                                 }
2311                                 if (ms < 0)
2312                                         ms = 1000;
2313
2314                                 active_chan = ast_waitfor_n(chans, 2, &ms);
2315                                 if (active_chan) {
2316                                         struct ast_frame *fr = ast_read(active_chan);
2317                                         if (!fr) {
2318                                                 ast_hangup(peer);
2319                                                 res = -1;
2320                                                 goto done;
2321                                         }
2322                                         switch(fr->frametype) {
2323                                                 case AST_FRAME_DTMF_END:
2324                                                         digit = fr->subclass.integer;
2325                                                         if (active_chan == peer && strchr(AST_DIGIT_ANY, res)) {
2326                                                                 ast_stopstream(peer);
2327                                                                 res = ast_senddigit(chan, digit, 0);
2328                                                         }
2329                                                         break;
2330                                                 case AST_FRAME_CONTROL:
2331                                                         switch (fr->subclass.integer) {
2332                                                                 case AST_CONTROL_HANGUP:
2333                                                                         ast_frfree(fr);
2334                                                                         ast_hangup(peer);
2335                                                                         res = -1;
2336                                                                         goto done;
2337                                                                 default:
2338                                                                         break;
2339                                                         }
2340                                                         break;
2341                                                 default:
2342                                                         /* Ignore all others */
2343                                                         break;
2344                                         }
2345                                         ast_frfree(fr);
2346                                 }
2347                                 ast_sched_runq(peer->sched);
2348                         }
2349                         ast_clear_flag(peer, AST_FLAG_END_DTMF_ONLY);
2350                 }
2351
2352                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2353                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2354                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2355                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2356                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2357                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2358                         peer->priority = chan->priority + 2;
2359                         ast_pbx_start(peer);
2360                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2361                         if (continue_exec)
2362                                 *continue_exec = 1;
2363                         res = 0;
2364                         goto done;
2365                 }
2366
2367                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2368                         struct ast_app *theapp;
2369                         const char *macro_result;
2370
2371                         res = ast_autoservice_start(chan);
2372                         if (res) {
2373                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2374                                 res = -1;
2375                         }
2376
2377                         theapp = pbx_findapp("Macro");
2378
2379                         if (theapp && !res) { /* XXX why check res here ? */
2380                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2381                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2382                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2383
2384                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2385                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2386                                 ast_debug(1, "Macro exited with status %d\n", res);
2387                                 res = 0;
2388                         } else {
2389                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2390                                 res = -1;
2391                         }
2392
2393                         if (ast_autoservice_stop(chan) < 0) {
2394                                 res = -1;
2395                         }
2396
2397                         ast_channel_lock(peer);
2398
2399                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2400                                 char *macro_transfer_dest;
2401
2402                                 if (!strcasecmp(macro_result, "BUSY")) {
2403                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2404                                         ast_set_flag64(peerflags, OPT_GO_ON);
2405                                         res = -1;
2406                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2407                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2408                                         ast_set_flag64(peerflags, OPT_GO_ON);
2409                                         res = -1;
2410                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2411                                         /* hangup peer and keep chan alive assuming the macro has changed
2412                                            the context / exten / priority or perhaps
2413                                            the next priority in the current exten is desired.
2414                                         */
2415                                         ast_set_flag64(peerflags, OPT_GO_ON);
2416                                         res = -1;
2417                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2418                                         /* Hangup both ends unless the caller has the g flag */
2419                                         res = -1;
2420                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2421                                         res = -1;
2422                                         /* perform a transfer to a new extension */
2423                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2424                                                 replace_macro_delimiter(macro_transfer_dest);
2425                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2426                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2427                                         }
2428                                 }
2429                         }
2430
2431                         ast_channel_unlock(peer);
2432                 }
2433
2434                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2435                         struct ast_app *theapp;
2436                         const char *gosub_result;
2437                         char *gosub_args, *gosub_argstart;
2438                         int res9 = -1;
2439
2440                         res9 = ast_autoservice_start(chan);
2441                         if (res9) {
2442                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2443                                 res9 = -1;
2444                         }
2445
2446                         theapp = pbx_findapp("Gosub");
2447
2448                         if (theapp && !res9) {
2449                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2450
2451                                 /* Set where we came from */
2452                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2453                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2454                                 peer->priority = 0;
2455
2456                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2457                                 if (gosub_argstart) {
2458                                         *gosub_argstart = 0;
2459                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2460                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2461                                                 gosub_args = NULL;
2462                                         }
2463                                         *gosub_argstart = ',';
2464                                 } else {
2465                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2466                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2467                                                 gosub_args = NULL;
2468                                         }
2469                                 }
2470
2471                                 if (gosub_args) {
2472                                         res9 = pbx_exec(peer, theapp, gosub_args);
2473                                         if (!res9) {
2474                                                 struct ast_pbx_args args;
2475                                                 /* A struct initializer fails to compile for this case ... */
2476                                                 memset(&args, 0, sizeof(args));
2477                                                 args.no_hangup_chan = 1;
2478                                                 ast_pbx_run_args(peer, &args);
2479                                         }
2480                                         ast_free(gosub_args);
2481                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2482                                 } else {
2483                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2484                                 }
2485
2486                         } else if (!res9) {
2487                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2488                                 res9 = -1;
2489                         }
2490
2491                         if (ast_autoservice_stop(chan) < 0) {
2492                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2493                                 res9 = -1;
2494                         }
2495                         
2496                         ast_channel_lock(peer);
2497
2498                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2499                                 char *gosub_transfer_dest;
2500                                 const char *gosub_retval = pbx_builtin_getvar_helper(peer, "GOSUB_RETVAL");
2501
2502                                 /* Inherit return value from the peer, so it can be used in the master */
2503                                 if (gosub_retval) {
2504                                         pbx_builtin_setvar_helper(chan, "GOSUB_RETVAL", gosub_retval);
2505                                 }
2506
2507                                 if (!strcasecmp(gosub_result, "BUSY")) {
2508                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2509                                         ast_set_flag64(peerflags, OPT_GO_ON);
2510                                         res = -1;
2511                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2512                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2513                                         ast_set_flag64(peerflags, OPT_GO_ON);
2514                                         res = -1;
2515                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2516                                         /* hangup peer and keep chan alive assuming the macro has changed
2517                                            the context / exten / priority or perhaps
2518                                            the next priority in the current exten is desired.
2519                                         */
2520                                         ast_set_flag64(peerflags, OPT_GO_ON);
2521                                         res = -1;
2522                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2523                                         /* Hangup both ends unless the caller has the g flag */
2524                                         res = -1;
2525                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2526                                         res = -1;
2527                                         /* perform a transfer to a new extension */
2528                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2529                                  &n