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[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
66 /*** DOCUMENTATION
67         <application name="Dial" language="en_US">
68                 <synopsis>
69                         Attempt to connect to another device or endpoint and bridge the call.
70                 </synopsis>
71                 <syntax>
72                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
73                                 <argument name="Technology/Resource" required="true">
74                                         <para>Specification of the device(s) to dial.  These must be in the format of
75                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
76                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
77                                         represents a resource available to that particular channel driver.</para>
78                                 </argument>
79                                 <argument name="Technology2/Resource2" required="false" multiple="true">
80                                         <para>Optional extra devices to dial in parallel</para>
81                                         <para>If you need more then one enter them as
82                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
83                                 </argument>
84                         </parameter>
85                         <parameter name="timeout" required="false">
86                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
87                                 <para>If not specified, this defaults to 136 years.</para>
88                         </parameter>
89                         <parameter name="options" required="false">
90                            <optionlist>
91                                 <option name="A">
92                                         <argument name="x" required="true">
93                                                 <para>The file to play to the called party</para>
94                                         </argument>
95                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
96                                 </option>
97                                 <option name="C">
98                                         <para>Reset the call detail record (CDR) for this call.</para>
99                                 </option>
100                                 <option name="c">
101                                         <para>If the Dial() application cancels this call, always set the flag to tell the channel
102                                         driver that the call is answered elsewhere.</para>
103                                 </option>
104                                 <option name="d">
105                                         <para>Allow the calling user to dial a 1 digit extension while waiting for
106                                         a call to be answered. Exit to that extension if it exists in the
107                                         current context, or the context defined in the <variable>EXITCONTEXT</variable> variable,
108                                         if it exists.</para>
109                                 </option>
110                                 <option name="D" argsep=":">
111                                         <argument name="called" />
112                                         <argument name="calling" />
113                                         <argument name="progress" />
114                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
115                                         party has answered, but before the call gets bridged. The 
116                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
117                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
118                                         can be used alone.  If <replaceable>progress</replaceable> is specified, its DTMF is sent
119                                         immediately after receiving a PROGRESS message.</para>
120                                 </option>
121                                 <option name="e">
122                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
123                                 </option>
124                                 <option name="f">
125                                         <para>Force the callerid of the <emphasis>calling</emphasis> channel to be set as the
126                                         extension associated with the channel using a dialplan <literal>hint</literal>.
127                                         For example, some PSTNs do not allow CallerID to be set to anything
128                                         other than the number assigned to the caller.</para>
129                                 </option>
130                                 <option name="F" argsep="^">
131                                         <argument name="context" required="false" />
132                                         <argument name="exten" required="false" />
133                                         <argument name="priority" required="true" />
134                                         <para>When the caller hangs up, transfer the called party
135                                         to the specified destination and continue execution at that location.</para>
136                                 </option>
137                                 <option name="F">
138                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
139                                         source channel hangs up.</para>
140                                 </option>
141                                 <option name="g">
142                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
143                                         destination channel hangs up.</para>
144                                 </option>
145                                 <option name="G" argsep="^">
146                                         <argument name="context" required="false" />
147                                         <argument name="exten" required="false" />
148                                         <argument name="priority" required="true" />
149                                         <para>If the call is answered, transfer the calling party to
150                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
151                                         <replaceable>priority</replaceable> plus one.</para>
152                                         <note>
153                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
154                                         </note>
155                                 </option>
156                                 <option name="h">
157                                         <para>Allow the called party to hang up by sending the <literal>*</literal> DTMF digit.</para>
158                                 </option>
159                                 <option name="H">
160                                         <para>Allow the calling party to hang up by hitting the <literal>*</literal> DTMF digit.</para>
161                                 </option>
162                                 <option name="i">
163                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
164                                 </option>
165                                 <option name="I">
166                                         <para>Asterisk will ignore any connected line update requests or redirecting party update
167                                         requests it may receiveon this dial attempt.</para>
168                                 </option>
169                                 <option name="k">
170                                         <para>Allow the called party to enable parking of the call by sending
171                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
172                                 </option>
173                                 <option name="K">
174                                         <para>Allow the calling party to enable parking of the call by sending
175                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
176                                 </option>
177                                 <option name="L" argsep=":">
178                                         <argument name="x" required="true">
179                                                 <para>Maximum call time, in milliseconds</para>
180                                         </argument>
181                                         <argument name="y">
182                                                 <para>Warning time, in milliseconds</para>
183                                         </argument>
184                                         <argument name="z">
185                                                 <para>Repeat time, in milliseconds</para>
186                                         </argument>
187                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
188                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
189                                         <para>This option is affected by the following variables:</para>
190                                         <variablelist>
191                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
192                                                         <value name="yes" default="true" />
193                                                         <value name="no" />
194                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
195                                                 </variable>
196                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
197                                                         <value name="yes" />
198                                                         <value name="no" default="true"/>
199                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
200                                                 </variable>
201                                                 <variable name="LIMIT_TIMEOUT_FILE">
202                                                         <value name="filename"/>
203                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
204                                                         If not set, the time remaining will be announced.</para>
205                                                 </variable>
206                                                 <variable name="LIMIT_CONNECT_FILE">
207                                                         <value name="filename"/>
208                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
209                                                         If not set, the time remaining will be announced.</para>
210                                                 </variable>
211                                                 <variable name="LIMIT_WARNING_FILE">
212                                                         <value name="filename"/>
213                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
214                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
215                                                 </variable>
216                                         </variablelist>
217                                 </option>
218                                 <option name="m">
219                                         <argument name="class" required="false"/>
220                                         <para>Provide hold music to the calling party until a requested
221                                         channel answers. A specific music on hold <replaceable>class</replaceable>
222                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
223                                 </option>
224                                 <option name="M" argsep="^">
225                                         <argument name="macro" required="true">
226                                                 <para>Name of the macro that should be executed.</para>
227                                         </argument>
228                                         <argument name="arg" multiple="true">
229                                                 <para>Macro arguments</para>
230                                         </argument>
231                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
232                                         before connecting to the calling channel. Arguments can be specified to the Macro
233                                         using <literal>^</literal> as a delimiter. The macro can set the variable
234                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
235                                         finished executing:</para>
236                                         <variablelist>
237                                                 <variable name="MACRO_RESULT">
238                                                         <para>If set, this action will be taken after the macro finished executing.</para>
239                                                         <value name="ABORT">
240                                                                 Hangup both legs of the call
241                                                         </value>
242                                                         <value name="CONGESTION">
243                                                                 Behave as if line congestion was encountered
244                                                         </value>
245                                                         <value name="BUSY">
246                                                                 Behave as if a busy signal was encountered
247                                                         </value>
248                                                         <value name="CONTINUE">
249                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
250                                                         </value>
251                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
252                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
253                                                                 Transfer the call to the specified destination.
254                                                         </value>
255                                                 </variable>
256                                         </variablelist>
257                                         <note>
258                                                 <para>You cannot use any additional action post answer options in conjunction
259                                                 with this option. Also, pbx services are not run on the peer (called) channel,
260                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
261                                         </note>
262                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
263                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
264                                         Macro()</para></warning>
265                                 </option>
266                                 <option name="n">
267                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
268                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
269                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
270                                         directory.</para>
271                                 </option>
272                                 <option name="N">
273                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
274                                         that if Caller*ID is present, do not screen the call.</para>
275                                 </option>
276                                 <option name="o">
277                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
278                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
279                                         behavior of Asterisk 1.0 and earlier.</para>
280                                 </option>
281                                 <option name="O">
282                                         <argument name="mode">
283                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
284                                                 the originator hanging up will cause the phone to ring back immediately.</para>
285                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
286                                                 flashes the trunk, it will ring their phone back.</para>
287                                         </argument>
288                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
289                                         works when bridging a DAHDI channel to another DAHDI channel
290                                         only. if specified on non-DAHDI interfaces, it will be ignored.
291                                         When the destination answers (presumably an operator services
292                                         station), the originator no longer has control of their line.
293                                         They may hang up, but the switch will not release their line
294                                         until the destination party (the operator) hangs up.</para>
295                                 </option>
296                                 <option name="p">
297                                         <para>This option enables screening mode. This is basically Privacy mode
298                                         without memory.</para>
299                                 </option>
300                                 <option name="P">
301                                         <argument name="x" />
302                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
303                                         it is provided. The current extension is used if a database family/key is not specified.</para>
304                                 </option>
305                                 <option name="r">
306                                         <para>Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
307                                         party until the called channel has answered.</para>
308                                 </option>
309                                 <option name="S">
310                                         <argument name="x" required="true" />
311                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
312                                         answered the call.</para>
313                                 </option>
314                                 <option name="t">
315                                         <para>Allow the called party to transfer the calling party by sending the
316                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
317                                 </option>
318                                 <option name="T">
319                                         <para>Allow the calling party to transfer the called party by sending the
320                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
321                                 </option>
322                                 <option name="U" argsep="^">
323                                         <argument name="x" required="true">
324                                                 <para>Name of the subroutine to execute via Gosub</para>
325                                         </argument>
326                                         <argument name="arg" multiple="true" required="false">
327                                                 <para>Arguments for the Gosub routine</para>
328                                         </argument>
329                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
330                                         to the calling channel. Arguments can be specified to the Gosub
331                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
332                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
333                                         <variablelist>
334                                                 <variable name="GOSUB_RESULT">
335                                                         <value name="ABORT">
336                                                                 Hangup both legs of the call.
337                                                         </value>
338                                                         <value name="CONGESTION">
339                                                                 Behave as if line congestion was encountered.
340                                                         </value>
341                                                         <value name="BUSY">
342                                                                 Behave as if a busy signal was encountered.
343                                                         </value>
344                                                         <value name="CONTINUE">
345                                                                 Hangup the called party and allow the calling party
346                                                                 to continue dialplan execution at the next priority.
347                                                         </value>
348                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
349                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
350                                                                 Transfer the call to the specified priority. Optionally, an extension, or
351                                                                 extension and priority can be specified.
352                                                         </value>
353                                                 </variable>
354                                         </variablelist>
355                                         <note>
356                                                 <para>You cannot use any additional action post answer options in conjunction
357                                                 with this option. Also, pbx services are not run on the peer (called) channel,
358                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
359                                         </note>
360                                 </option>
361                                 <option name="w">
362                                         <para>Allow the called party to enable recording of the call by sending
363                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
364                                 </option>
365                                 <option name="W">
366                                         <para>Allow the calling party to enable recording of the call by sending
367                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
368                                 </option>
369                                 <option name="x">
370                                         <para>Allow the called party to enable recording of the call by sending
371                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
372                                 </option>
373                                 <option name="X">
374                                         <para>Allow the calling party to enable recording of the call by sending
375                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
376                                 </option>
377                                 <option name="z">
378                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
379                                 </option>
380                                 </optionlist>
381                         </parameter>
382                         <parameter name="URL">
383                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
384                         </parameter>
385                 </syntax>
386                 <description>
387                         <para>This application will place calls to one or more specified channels. As soon
388                         as one of the requested channels answers, the originating channel will be
389                         answered, if it has not already been answered. These two channels will then
390                         be active in a bridged call. All other channels that were requested will then
391                         be hung up.</para>
392
393                         <para>Unless there is a timeout specified, the Dial application will wait
394                         indefinitely until one of the called channels answers, the user hangs up, or
395                         if all of the called channels are busy or unavailable. Dialplan executing will
396                         continue if no requested channels can be called, or if the timeout expires.
397                         This application will report normal termination if the originating channel
398                         hangs up, or if the call is bridged and either of the parties in the bridge
399                         ends the call.</para>
400                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
401                         application will be put into that group (as in Set(GROUP()=...).
402                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
403                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
404                         however, the variable will be unset after use.</para>
405
406                         <para>This application sets the following channel variables:</para>
407                         <variablelist>
408                                 <variable name="DIALEDTIME">
409                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
410                                 </variable>
411                                 <variable name="ANSWEREDTIME">
412                                         <para>This is the amount of time for actual call.</para>
413                                 </variable>
414                                 <variable name="DIALSTATUS">
415                                         <para>This is the status of the call</para>
416                                         <value name="CHANUNAVAIL" />
417                                         <value name="CONGESTION" />
418                                         <value name="NOANSWER" />
419                                         <value name="BUSY" />
420                                         <value name="ANSWER" />
421                                         <value name="CANCEL" />
422                                         <value name="DONTCALL">
423                                                 For the Privacy and Screening Modes.
424                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
425                                         </value>
426                                         <value name="TORTURE">
427                                                 For the Privacy and Screening Modes.
428                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
429                                         </value>
430                                         <value name="INVALIDARGS" />
431                                 </variable>
432                         </variablelist>
433                 </description>
434         </application>
435         <application name="RetryDial" language="en_US">
436                 <synopsis>
437                         Place a call, retrying on failure allowing an optional exit extension.
438                 </synopsis>
439                 <syntax>
440                         <parameter name="announce" required="true">
441                                 <para>Filename of sound that will be played when no channel can be reached</para>
442                         </parameter>
443                         <parameter name="sleep" required="true">
444                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
445                         </parameter>
446                         <parameter name="retries" required="true">
447                                 <para>Number of retries</para>
448                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
449                         </parameter>
450                         <parameter name="dialargs" required="true">
451                                 <para>Same format as arguments provided to the Dial application</para>
452                         </parameter>
453                 </syntax>
454                 <description>
455                         <para>This application will attempt to place a call using the normal Dial application.
456                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
457                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
458                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
459                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
460                         While waiting to retry a call, a 1 digit extension may be dialed. If that
461                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
462                         one, The call will jump to that extension immediately.
463                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
464                         to the Dial application.</para>
465                 </description>
466         </application>
467  ***/
468
469 static const char app[] = "Dial";
470 static const char rapp[] = "RetryDial";
471
472 enum {
473         OPT_ANNOUNCE =          (1 << 0),
474         OPT_RESETCDR =          (1 << 1),
475         OPT_DTMF_EXIT =         (1 << 2),
476         OPT_SENDDTMF =          (1 << 3),
477         OPT_FORCECLID =         (1 << 4),
478         OPT_GO_ON =             (1 << 5),
479         OPT_CALLEE_HANGUP =     (1 << 6),
480         OPT_CALLER_HANGUP =     (1 << 7),
481         OPT_ORIGINAL_CLID =     (1 << 8),
482         OPT_DURATION_LIMIT =    (1 << 9),
483         OPT_MUSICBACK =         (1 << 10),
484         OPT_CALLEE_MACRO =      (1 << 11),
485         OPT_SCREEN_NOINTRO =    (1 << 12),
486         OPT_SCREEN_NOCALLERID = (1 << 13),
487         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
488         OPT_SCREENING =         (1 << 15),
489         OPT_PRIVACY =           (1 << 16),
490         OPT_RINGBACK =          (1 << 17),
491         OPT_DURATION_STOP =     (1 << 18),
492         OPT_CALLEE_TRANSFER =   (1 << 19),
493         OPT_CALLER_TRANSFER =   (1 << 20),
494         OPT_CALLEE_MONITOR =    (1 << 21),
495         OPT_CALLER_MONITOR =    (1 << 22),
496         OPT_GOTO =              (1 << 23),
497         OPT_OPERMODE =          (1 << 24),
498         OPT_CALLEE_PARK =       (1 << 25),
499         OPT_CALLER_PARK =       (1 << 26),
500         OPT_IGNORE_FORWARDING = (1 << 27),
501         OPT_CALLEE_GOSUB =      (1 << 28),
502         OPT_CALLEE_MIXMONITOR = (1 << 29),
503         OPT_CALLER_MIXMONITOR = (1 << 30),
504 };
505
506 #define DIAL_STILLGOING      (1 << 31)
507 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
508 #define DIAL_NOCONNECTEDLINE ((uint64_t)1 << 33)
509 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 34)
510 #define OPT_PEER_H           ((uint64_t)1 << 35)
511 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 36)
512 #define OPT_CANCEL_TIMEOUT   ((uint64_t)1 << 37)
513
514 enum {
515         OPT_ARG_ANNOUNCE = 0,
516         OPT_ARG_SENDDTMF,
517         OPT_ARG_GOTO,
518         OPT_ARG_DURATION_LIMIT,
519         OPT_ARG_MUSICBACK,
520         OPT_ARG_CALLEE_MACRO,
521         OPT_ARG_CALLEE_GOSUB,
522         OPT_ARG_CALLEE_GO_ON,
523         OPT_ARG_PRIVACY,
524         OPT_ARG_DURATION_STOP,
525         OPT_ARG_OPERMODE,
526         /* note: this entry _MUST_ be the last one in the enum */
527         OPT_ARG_ARRAY_SIZE,
528 };
529
530 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
531         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
532         AST_APP_OPTION('C', OPT_RESETCDR),
533         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
534         AST_APP_OPTION('d', OPT_DTMF_EXIT),
535         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
536         AST_APP_OPTION('e', OPT_PEER_H),
537         AST_APP_OPTION('f', OPT_FORCECLID),
538         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
539         AST_APP_OPTION('g', OPT_GO_ON),
540         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
541         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
542         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
543         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
544         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
545         AST_APP_OPTION('k', OPT_CALLEE_PARK),
546         AST_APP_OPTION('K', OPT_CALLER_PARK),
547         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
548         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
549         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
550         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
551         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
552         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
553         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
554         AST_APP_OPTION('p', OPT_SCREENING),
555         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
556         AST_APP_OPTION('r', OPT_RINGBACK),
557         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
558         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
559         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
560         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
561         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
562         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
563         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
564         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
565         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
566 END_OPTIONS );
567
568 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
569         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
570         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK | OPT_CALLER_PARK) && \
571         !chan->audiohooks && !peer->audiohooks)
572
573 /*
574  * The list of active channels
575  */
576 struct chanlist {
577         struct chanlist *next;
578         struct ast_channel *chan;
579         uint64_t flags;
580         struct ast_party_connected_line connected;
581 };
582
583 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
584
585 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
586 {
587         /* Hang up a tree of stuff */
588         struct chanlist *oo;
589         while (outgoing) {
590                 /* Hangup any existing lines we have open */
591                 if (outgoing->chan && (outgoing->chan != exception)) {
592                         if (answered_elsewhere) {
593                                 /* The flag is used for local channel inheritance and stuff */
594                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
595                                 /* This is for the channel drivers */
596                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
597                         }
598                         ast_party_connected_line_free(&outgoing->connected);
599                         ast_hangup(outgoing->chan);
600                 }
601                 oo = outgoing;
602                 outgoing = outgoing->next;
603                 ast_free(oo);
604         }
605 }
606
607 #define AST_MAX_WATCHERS 256
608
609 /*
610  * argument to handle_cause() and other functions.
611  */
612 struct cause_args {
613         struct ast_channel *chan;
614         int busy;
615         int congestion;
616         int nochan;
617 };
618
619 static void handle_cause(int cause, struct cause_args *num)
620 {
621         struct ast_cdr *cdr = num->chan->cdr;
622
623         switch(cause) {
624         case AST_CAUSE_BUSY:
625                 if (cdr)
626                         ast_cdr_busy(cdr);
627                 num->busy++;
628                 break;
629
630         case AST_CAUSE_CONGESTION:
631                 if (cdr)
632                         ast_cdr_failed(cdr);
633                 num->congestion++;
634                 break;
635
636         case AST_CAUSE_NO_ROUTE_DESTINATION:
637         case AST_CAUSE_UNREGISTERED:
638                 if (cdr)
639                         ast_cdr_failed(cdr);
640                 num->nochan++;
641                 break;
642
643         case AST_CAUSE_NO_ANSWER:
644                 if (cdr) {
645                         ast_cdr_noanswer(cdr);
646                 }
647                 break;
648         case AST_CAUSE_NORMAL_CLEARING:
649                 break;
650
651         default:
652                 num->nochan++;
653                 break;
654         }
655 }
656
657 /* free the buffer if allocated, and set the pointer to the second arg */
658 #define S_REPLACE(s, new_val)           \
659         do {                            \
660                 if (s)                  \
661                         ast_free(s);    \
662                 s = (new_val);          \
663         } while (0)
664
665 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
666 {
667         char rexten[2] = { exten, '\0' };
668
669         if (context) {
670                 if (!ast_goto_if_exists(chan, context, rexten, pri))
671                         return 1;
672         } else {
673                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
674                         return 1;
675                 else if (!ast_strlen_zero(chan->macrocontext)) {
676                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
677                                 return 1;
678                 }
679         }
680         return 0;
681 }
682
683 /* do not call with chan lock held */
684 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
685 {
686         const char *context;
687         const char *exten;
688
689         ast_channel_lock(chan);
690         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
691         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
692         ast_channel_unlock(chan);
693
694         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
695 }
696
697 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
698 {
699         manager_event(EVENT_FLAG_CALL, "Dial",
700                 "SubEvent: Begin\r\n"
701                 "Channel: %s\r\n"
702                 "Destination: %s\r\n"
703                 "CallerIDNum: %s\r\n"
704                 "CallerIDName: %s\r\n"
705                 "UniqueID: %s\r\n"
706                 "DestUniqueID: %s\r\n"
707                 "Dialstring: %s\r\n",
708                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
709                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
710                 dst->uniqueid, dialstring ? dialstring : "");
711 }
712
713 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
714 {
715         manager_event(EVENT_FLAG_CALL, "Dial",
716                 "SubEvent: End\r\n"
717                 "Channel: %s\r\n"
718                 "UniqueID: %s\r\n"
719                 "DialStatus: %s\r\n",
720                 src->name, src->uniqueid, dialstatus);
721 }
722
723 /*!
724  * helper function for wait_for_answer()
725  *
726  * XXX this code is highly suspicious, as it essentially overwrites
727  * the outgoing channel without properly deleting it.
728  *
729  * \todo eventually this function should be intergrated into and replaced by ast_call_forward() 
730  */
731 static void do_forward(struct chanlist *o,
732         struct cause_args *num, struct ast_flags64 *peerflags, int single, int *to)
733 {
734         char tmpchan[256];
735         struct ast_channel *original = o->chan;
736         struct ast_channel *c = o->chan; /* the winner */
737         struct ast_channel *in = num->chan; /* the input channel */
738         struct ast_party_redirecting *apr = &o->chan->redirecting;
739         struct ast_party_connected_line *apc = &o->chan->connected;
740         char *stuff;
741         char *tech;
742         int cause;
743
744         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
745         if ((stuff = strchr(tmpchan, '/'))) {
746                 *stuff++ = '\0';
747                 tech = tmpchan;
748         } else {
749                 const char *forward_context;
750                 ast_channel_lock(c);
751                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
752                 if (ast_strlen_zero(forward_context)) {
753                         forward_context = NULL;
754                 }
755                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
756                 ast_channel_unlock(c);
757                 stuff = tmpchan;
758                 tech = "Local";
759         }
760
761         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, c->call_forward, NULL);
762
763         /* Before processing channel, go ahead and check for forwarding */
764         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
765         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
766         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
767                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
768                 c = o->chan = NULL;
769                 cause = AST_CAUSE_BUSY;
770         } else {
771                 /* Setup parameters */
772                 c = o->chan = ast_request(tech, in->nativeformats, in, stuff, &cause);
773                 if (c) {
774                         if (single)
775                                 ast_channel_make_compatible(o->chan, in);
776                         ast_channel_inherit_variables(in, o->chan);
777                         ast_channel_datastore_inherit(in, o->chan);
778                 } else
779                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
780         }
781         if (!c) {
782                 ast_clear_flag64(o, DIAL_STILLGOING);
783                 handle_cause(cause, num);
784                 ast_hangup(original);
785         } else {
786                 if (single) {
787                         ast_rtp_instance_early_bridge_make_compatible(c, in);
788                 }
789
790                 c->cdrflags = in->cdrflags;
791
792                 ast_channel_set_redirecting(c, apr);
793                 ast_channel_lock(c);
794                 while (ast_channel_trylock(in)) {
795                         CHANNEL_DEADLOCK_AVOIDANCE(c);
796                 }
797                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(original->cid.cid_rdnis, S_OR(in->macroexten, in->exten))));
798
799                 c->cid.cid_tns = in->cid.cid_tns;
800
801                 if (ast_test_flag64(o, OPT_FORCECLID)) {
802                         S_REPLACE(c->cid.cid_num, ast_strdupa(S_OR(in->macroexten, in->exten)));
803                         S_REPLACE(c->cid.cid_name, NULL);
804                         ast_string_field_set(c, accountcode, c->accountcode);
805                 } else {
806                         ast_party_caller_copy(&c->cid, &in->cid);
807                         ast_string_field_set(c, accountcode, in->accountcode);
808                 }
809                 ast_party_connected_line_copy(&c->connected, apc);
810
811                 S_REPLACE(in->cid.cid_rdnis, ast_strdup(c->cid.cid_rdnis));
812                 ast_channel_update_redirecting(in, apr);
813
814                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
815                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
816                         *to = -1;
817                 }
818
819                 ast_channel_unlock(in);
820                 ast_channel_unlock(c);
821
822                 if (ast_call(c, tmpchan, 0)) {
823                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
824                         ast_clear_flag64(o, DIAL_STILLGOING);
825                         ast_hangup(original);
826                         ast_hangup(c);
827                         c = o->chan = NULL;
828                         num->nochan++;
829                 } else {
830                         ast_channel_lock(c);
831                         while (ast_channel_trylock(in)) {
832                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
833                         }
834                         senddialevent(in, c, stuff);
835                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
836                                 char cidname[AST_MAX_EXTENSION] = "";
837                                 const char *tmpexten;
838                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
839                                 ast_channel_unlock(in);
840                                 ast_channel_unlock(c);
841                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
842                         } else {
843                                 ast_channel_unlock(in);
844                                 ast_channel_unlock(c);
845                         }
846                         /* Hangup the original channel now, in case we needed it */
847                         ast_hangup(original);
848                 }
849                 if (single) {
850                         ast_indicate(in, -1);
851                 }
852         }
853 }
854
855 /* argument used for some functions. */
856 struct privacy_args {
857         int sentringing;
858         int privdb_val;
859         char privcid[256];
860         char privintro[1024];
861         char status[256];
862 };
863
864 static struct ast_channel *wait_for_answer(struct ast_channel *in,
865         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
866         struct privacy_args *pa,
867         const struct cause_args *num_in, int *result, char *dtmf_progress)
868 {
869         struct cause_args num = *num_in;
870         int prestart = num.busy + num.congestion + num.nochan;
871         int orig = *to;
872         struct ast_channel *peer = NULL;
873         /* single is set if only one destination is enabled */
874         int single = outgoing && !outgoing->next;
875 #ifdef HAVE_EPOLL
876         struct chanlist *epollo;
877 #endif
878         struct ast_party_connected_line connected_caller;
879         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
880
881         ast_party_connected_line_init(&connected_caller);
882         if (single) {
883                 /* Turn off hold music, etc */
884                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK))
885                         ast_deactivate_generator(in);
886
887                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
888                 ast_channel_make_compatible(outgoing->chan, in);
889
890                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_NOCONNECTEDLINE)) {
891                         ast_channel_lock(outgoing->chan);
892                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->cid);
893                         ast_channel_unlock(outgoing->chan);
894                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
895                         ast_channel_update_connected_line(in, &connected_caller);
896                         ast_party_connected_line_free(&connected_caller);
897                 }
898         }
899
900 #ifdef HAVE_EPOLL
901         for (epollo = outgoing; epollo; epollo = epollo->next)
902                 ast_poll_channel_add(in, epollo->chan);
903 #endif
904
905         while (*to && !peer) {
906                 struct chanlist *o;
907                 int pos = 0; /* how many channels do we handle */
908                 int numlines = prestart;
909                 struct ast_channel *winner;
910                 struct ast_channel *watchers[AST_MAX_WATCHERS];
911
912                 watchers[pos++] = in;
913                 for (o = outgoing; o; o = o->next) {
914                         /* Keep track of important channels */
915                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
916                                 watchers[pos++] = o->chan;
917                         numlines++;
918                 }
919                 if (pos == 1) { /* only the input channel is available */
920                         if (numlines == (num.busy + num.congestion + num.nochan)) {
921                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
922                                 if (num.busy)
923                                         strcpy(pa->status, "BUSY");
924                                 else if (num.congestion)
925                                         strcpy(pa->status, "CONGESTION");
926                                 else if (num.nochan)
927                                         strcpy(pa->status, "CHANUNAVAIL");
928                         } else {
929                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
930                         }
931                         *to = 0;
932                         return NULL;
933                 }
934                 winner = ast_waitfor_n(watchers, pos, to);
935                 for (o = outgoing; o; o = o->next) {
936                         struct ast_frame *f;
937                         struct ast_channel *c = o->chan;
938
939                         if (c == NULL)
940                                 continue;
941                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
942                                 if (!peer) {
943                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
944                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
945                                                 if (o->connected.id.number) {
946                                                         if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
947                                                                 ast_channel_update_connected_line(in, &o->connected);
948                                                         }
949                                                 } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
950                                                         ast_channel_lock(c);
951                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
952                                                         ast_channel_unlock(c);
953                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
954                                                         ast_channel_update_connected_line(in, &connected_caller);
955                                                         ast_party_connected_line_free(&connected_caller);
956                                                 }
957                                         }
958                                         peer = c;
959                                         ast_copy_flags64(peerflags, o,
960                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
961                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
962                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
963                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
964                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
965                                                 DIAL_NOFORWARDHTML);
966                                         ast_string_field_set(c, dialcontext, "");
967                                         ast_copy_string(c->exten, "", sizeof(c->exten));
968                                 }
969                                 continue;
970                         }
971                         if (c != winner)
972                                 continue;
973                         /* here, o->chan == c == winner */
974                         if (!ast_strlen_zero(c->call_forward)) {
975                                 (*sentringing) = 0;
976                                 do_forward(o, &num, peerflags, single, to);
977                                 continue;
978                         }
979                         f = ast_read(winner);
980                         if (!f) {
981                                 in->hangupcause = c->hangupcause;
982 #ifdef HAVE_EPOLL
983                                 ast_poll_channel_del(in, c);
984 #endif
985                                 ast_hangup(c);
986                                 c = o->chan = NULL;
987                                 ast_clear_flag64(o, DIAL_STILLGOING);
988                                 handle_cause(in->hangupcause, &num);
989                                 continue;
990                         }
991                         if (f->frametype == AST_FRAME_CONTROL) {
992                                 switch(f->subclass) {
993                                 case AST_CONTROL_ANSWER:
994                                         /* This is our guy if someone answered. */
995                                         if (!peer) {
996                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
997                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
998                                                         if (o->connected.id.number) {
999                                                                 if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1000                                                                         ast_channel_update_connected_line(in, &o->connected);
1001                                                                 }
1002                                                         } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
1003                                                                 ast_channel_lock(c);
1004                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
1005                                                                 ast_channel_unlock(c);
1006                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1007                                                                 ast_channel_update_connected_line(in, &connected_caller);
1008                                                                 ast_party_connected_line_free(&connected_caller);
1009                                                         }
1010                                                 }
1011                                                 peer = c;
1012                                                 if (peer->cdr) {
1013                                                         peer->cdr->answer = ast_tvnow();
1014                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
1015                                                 }
1016                                                 ast_copy_flags64(peerflags, o,
1017                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1018                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1019                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1020                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1021                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1022                                                         DIAL_NOFORWARDHTML);
1023                                                 ast_string_field_set(c, dialcontext, "");
1024                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
1025                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1026                                                         /* Setup early bridge if appropriate */
1027                                                         ast_channel_early_bridge(in, peer);
1028                                         }
1029                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1030                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1031                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1032                                         break;
1033                                 case AST_CONTROL_BUSY:
1034                                         ast_verb(3, "%s is busy\n", c->name);
1035                                         in->hangupcause = c->hangupcause;
1036                                         ast_hangup(c);
1037                                         c = o->chan = NULL;
1038                                         ast_clear_flag64(o, DIAL_STILLGOING);
1039                                         handle_cause(AST_CAUSE_BUSY, &num);
1040                                         break;
1041                                 case AST_CONTROL_CONGESTION:
1042                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1043                                         in->hangupcause = c->hangupcause;
1044                                         ast_hangup(c);
1045                                         c = o->chan = NULL;
1046                                         ast_clear_flag64(o, DIAL_STILLGOING);
1047                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1048                                         break;
1049                                 case AST_CONTROL_RINGING:
1050                                         ast_verb(3, "%s is ringing\n", c->name);
1051                                         /* Setup early media if appropriate */
1052                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1053                                                 ast_channel_early_bridge(in, c);
1054                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1055                                                 ast_indicate(in, AST_CONTROL_RINGING);
1056                                                 pa->sentringing++;
1057                                         }
1058                                         break;
1059                                 case AST_CONTROL_PROGRESS:
1060                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1061                                         /* Setup early media if appropriate */
1062                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1063                                                 ast_channel_early_bridge(in, c);
1064                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1065                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
1066                                                 if(!ast_strlen_zero(dtmf_progress)) {
1067                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1068                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1069                                                 }
1070                                         break;
1071                                 case AST_CONTROL_VIDUPDATE:
1072                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1073                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1074                                         break;
1075                                 case AST_CONTROL_SRCUPDATE:
1076                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1077                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1078                                         break;
1079                                 case AST_CONTROL_CONNECTED_LINE:
1080                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1081                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1082                                         } else if (!single) {
1083                                                 struct ast_party_connected_line connected;
1084                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1085                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1086                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1087                                                 ast_party_connected_line_set(&o->connected, &connected);
1088                                                 ast_party_connected_line_free(&connected);
1089                                         } else {
1090                                                 if (ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1091                                                         ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1092                                                 }
1093                                         }
1094                                         break;
1095                                 case AST_CONTROL_REDIRECTING:
1096                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1097                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1098                                         } else {
1099                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1100                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1101                                                 (*sentringing) = 0;
1102                                         }
1103                                         break;
1104                                 case AST_CONTROL_PROCEEDING:
1105                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1106                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1107                                                 ast_channel_early_bridge(in, c);
1108                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1109                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1110                                         break;
1111                                 case AST_CONTROL_HOLD:
1112                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1113                                         ast_indicate(in, AST_CONTROL_HOLD);
1114                                         break;
1115                                 case AST_CONTROL_UNHOLD:
1116                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1117                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1118                                         break;
1119                                 case AST_CONTROL_OFFHOOK:
1120                                 case AST_CONTROL_FLASH:
1121                                         /* Ignore going off hook and flash */
1122                                         break;
1123                                 case -1:
1124                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1125                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1126                                                 ast_indicate(in, -1);
1127                                                 pa->sentringing = 0;
1128                                         }
1129                                         break;
1130                                 default:
1131                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
1132                                 }
1133                         } else if (single) {
1134                                 switch (f->frametype) {
1135                                         case AST_FRAME_VOICE:
1136                                         case AST_FRAME_IMAGE:
1137                                         case AST_FRAME_TEXT:
1138                                                 if (ast_write(in, f)) {
1139                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1140                                                 }
1141                                                 break;
1142                                         case AST_FRAME_HTML:
1143                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass, f->data.ptr, f->datalen) == -1) {
1144                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1145                                                 }
1146                                                 break;
1147                                         default:
1148                                                 break;
1149                                 }
1150                         }
1151                         ast_frfree(f);
1152                 } /* end for */
1153                 if (winner == in) {
1154                         struct ast_frame *f = ast_read(in);
1155 #if 0
1156                         if (f && (f->frametype != AST_FRAME_VOICE))
1157                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1158                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1159                                 printf("Hangup received on %s\n", in->name);
1160 #endif
1161                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
1162                                 /* Got hung up */
1163                                 *to = -1;
1164                                 strcpy(pa->status, "CANCEL");
1165                                 ast_cdr_noanswer(in->cdr);
1166                                 if (f) {
1167                                         if (f->data.uint32) {
1168                                                 in->hangupcause = f->data.uint32;
1169                                         }
1170                                         ast_frfree(f);
1171                                 }
1172                                 return NULL;
1173                         }
1174
1175                         /* now f is guaranteed non-NULL */
1176                         if (f->frametype == AST_FRAME_DTMF) {
1177                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1178                                         const char *context;
1179                                         ast_channel_lock(in);
1180                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1181                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
1182                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1183                                                 *to = 0;
1184                                                 ast_cdr_noanswer(in->cdr);
1185                                                 *result = f->subclass;
1186                                                 strcpy(pa->status, "CANCEL");
1187                                                 ast_frfree(f);
1188                                                 ast_channel_unlock(in);
1189                                                 return NULL;
1190                                         }
1191                                         ast_channel_unlock(in);
1192                                 }
1193
1194                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1195                                         detect_disconnect(in, f->subclass, featurecode)) {
1196                                         ast_verb(3, "User requested call disconnect.\n");
1197                                         *to = 0;
1198                                         strcpy(pa->status, "CANCEL");
1199                                         ast_cdr_noanswer(in->cdr);
1200                                         ast_frfree(f);
1201                                         return NULL;
1202                                 }
1203                         }
1204
1205                         /* Forward HTML stuff */
1206                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1207                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass, f->data.ptr, f->datalen) == -1)
1208                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1209
1210                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1211                                 if (ast_write(outgoing->chan, f))
1212                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1213                         }
1214                         if (single && (f->frametype == AST_FRAME_CONTROL)) { 
1215                                 if ((f->subclass == AST_CONTROL_HOLD) ||
1216                                     (f->subclass == AST_CONTROL_UNHOLD) ||
1217                                     (f->subclass == AST_CONTROL_VIDUPDATE) ||
1218                                     (f->subclass == AST_CONTROL_SRCUPDATE) ||
1219                                     (f->subclass == AST_CONTROL_REDIRECTING)) {
1220                                         ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
1221                                         ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1222                                 } else if (f->subclass == AST_CONTROL_CONNECTED_LINE) {
1223                                         if (ast_channel_connected_line_macro(in, outgoing->chan, f, 0, 1)) {
1224                                                 ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1225                                         }
1226                                 }
1227                         }
1228                         ast_frfree(f);
1229                 }
1230                 if (!*to)
1231                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1232                 if (!*to || ast_check_hangup(in))
1233                         ast_cdr_noanswer(in->cdr);
1234         }
1235
1236 #ifdef HAVE_EPOLL
1237         for (epollo = outgoing; epollo; epollo = epollo->next) {
1238                 if (epollo->chan)
1239                         ast_poll_channel_del(in, epollo->chan);
1240         }
1241 #endif
1242
1243         return peer;
1244 }
1245
1246 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1247 {
1248         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1249         struct ast_call_feature feature = { 0, };
1250         int res;
1251
1252         ast_str_append(&featurecode, 1, "%c", code);
1253
1254         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1255
1256         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1257                 ast_str_reset(featurecode);
1258         }
1259         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1260                 return 1;
1261         }
1262
1263         return 0;
1264 }
1265
1266 static void replace_macro_delimiter(char *s)
1267 {
1268         for (; *s; s++)
1269                 if (*s == '^')
1270                         *s = ',';
1271 }
1272
1273 /* returns true if there is a valid privacy reply */
1274 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1275 {
1276         if (res < '1')
1277                 return 0;
1278         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1279                 return 1;
1280         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1281                 return 1;
1282         return 0;
1283 }
1284
1285 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
1286         char *parse, struct timeval *calldurationlimit)
1287 {
1288         char *stringp = ast_strdupa(parse);
1289         char *limit_str, *warning_str, *warnfreq_str;
1290         const char *var;
1291         int play_to_caller = 0, play_to_callee = 0;
1292         int delta;
1293
1294         limit_str = strsep(&stringp, ":");
1295         warning_str = strsep(&stringp, ":");
1296         warnfreq_str = strsep(&stringp, ":");
1297
1298         config->timelimit = atol(limit_str);
1299         if (warning_str)
1300                 config->play_warning = atol(warning_str);
1301         if (warnfreq_str)
1302                 config->warning_freq = atol(warnfreq_str);
1303
1304         if (!config->timelimit) {
1305                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
1306                 config->timelimit = config->play_warning = config->warning_freq = 0;
1307                 config->warning_sound = NULL;
1308                 return -1; /* error */
1309         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
1310                 int w = config->warning_freq;
1311
1312                 /* If the first warning is requested _after_ the entire call would end,
1313                    and no warning frequency is requested, then turn off the warning. If
1314                    a warning frequency is requested, reduce the 'first warning' time by
1315                    that frequency until it falls within the call's total time limit.
1316                    Graphically:
1317                                   timelim->|    delta        |<-playwarning
1318                         0__________________|_________________|
1319                                          | w  |    |    |    |
1320
1321                    so the number of intervals to cut is 1+(delta-1)/w
1322                 */
1323
1324                 if (w == 0) {
1325                         config->play_warning = 0;
1326                 } else {
1327                         config->play_warning -= w * ( 1 + (delta-1)/w );
1328                         if (config->play_warning < 1)
1329                                 config->play_warning = config->warning_freq = 0;
1330                 }
1331         }
1332         
1333         ast_channel_lock(chan);
1334
1335         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLER");
1336
1337         play_to_caller = var ? ast_true(var) : 1;
1338
1339         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLEE");
1340         play_to_callee = var ? ast_true(var) : 0;
1341
1342         if (!play_to_caller && !play_to_callee)
1343                 play_to_caller = 1;
1344
1345         var = pbx_builtin_getvar_helper(chan, "LIMIT_WARNING_FILE");
1346         config->warning_sound = !ast_strlen_zero(var) ? ast_strdup(var) : ast_strdup("timeleft");
1347
1348         /* The code looking at config wants a NULL, not just "", to decide
1349          * that the message should not be played, so we replace "" with NULL.
1350          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
1351          * not found.
1352          */
1353
1354         var = pbx_builtin_getvar_helper(chan, "LIMIT_TIMEOUT_FILE");
1355         config->end_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1356
1357         var = pbx_builtin_getvar_helper(chan, "LIMIT_CONNECT_FILE");
1358         config->start_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1359
1360         ast_channel_unlock(chan);
1361
1362         /* undo effect of S(x) in case they are both used */
1363         calldurationlimit->tv_sec = 0;
1364         calldurationlimit->tv_usec = 0;
1365
1366         /* more efficient to do it like S(x) does since no advanced opts */
1367         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
1368                 calldurationlimit->tv_sec = config->timelimit / 1000;
1369                 calldurationlimit->tv_usec = (config->timelimit % 1000) * 1000;
1370                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n",
1371                         calldurationlimit->tv_sec + calldurationlimit->tv_usec / 1000000.0);
1372                 config->timelimit = play_to_caller = play_to_callee =
1373                 config->play_warning = config->warning_freq = 0;
1374         } else {
1375                 ast_verb(3, "Limit Data for this call:\n");
1376                 ast_verb(4, "timelimit      = %ld\n", config->timelimit);
1377                 ast_verb(4, "play_warning   = %ld\n", config->play_warning);
1378                 ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
1379                 ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
1380                 ast_verb(4, "warning_freq   = %ld\n", config->warning_freq);
1381                 ast_verb(4, "start_sound    = %s\n", S_OR(config->start_sound, ""));
1382                 ast_verb(4, "warning_sound  = %s\n", config->warning_sound);
1383                 ast_verb(4, "end_sound      = %s\n", S_OR(config->end_sound, ""));
1384         }
1385         if (play_to_caller)
1386                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
1387         if (play_to_callee)
1388                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
1389         return 0;
1390 }
1391
1392 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1393         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1394 {
1395
1396         int res2;
1397         int loopcount = 0;
1398
1399         /* Get the user's intro, store it in priv-callerintros/$CID,
1400            unless it is already there-- this should be done before the
1401            call is actually dialed  */
1402
1403         /* all ring indications and moh for the caller has been halted as soon as the
1404            target extension was picked up. We are going to have to kill some
1405            time and make the caller believe the peer hasn't picked up yet */
1406
1407         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1408                 char *original_moh = ast_strdupa(chan->musicclass);
1409                 ast_indicate(chan, -1);
1410                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1411                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1412                 ast_string_field_set(chan, musicclass, original_moh);
1413         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1414                 ast_indicate(chan, AST_CONTROL_RINGING);
1415                 pa->sentringing++;
1416         }
1417
1418         /* Start autoservice on the other chan ?? */
1419         res2 = ast_autoservice_start(chan);
1420         /* Now Stream the File */
1421         for (loopcount = 0; loopcount < 3; loopcount++) {
1422                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1423                         break;
1424                 if (!res2) /* on timeout, play the message again */
1425                         res2 = ast_play_and_wait(peer, "priv-callpending");
1426                 if (!valid_priv_reply(opts, res2))
1427                         res2 = 0;
1428                 /* priv-callpending script:
1429                    "I have a caller waiting, who introduces themselves as:"
1430                 */
1431                 if (!res2)
1432                         res2 = ast_play_and_wait(peer, pa->privintro);
1433                 if (!valid_priv_reply(opts, res2))
1434                         res2 = 0;
1435                 /* now get input from the called party, as to their choice */
1436                 if (!res2) {
1437                         /* XXX can we have both, or they are mutually exclusive ? */
1438                         if (ast_test_flag64(opts, OPT_PRIVACY))
1439                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1440                         if (ast_test_flag64(opts, OPT_SCREENING))
1441                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1442                 }
1443                 /*! \page DialPrivacy Dial Privacy scripts
1444                 \par priv-callee-options script:
1445                         "Dial 1 if you wish this caller to reach you directly in the future,
1446                                 and immediately connect to their incoming call
1447                          Dial 2 if you wish to send this caller to voicemail now and
1448                                 forevermore.
1449                          Dial 3 to send this caller to the torture menus, now and forevermore.
1450                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1451                          Dial 5 to allow this caller to come straight thru to you in the future,
1452                                 but right now, just this once, send them to voicemail."
1453                 \par screen-callee-options script:
1454                         "Dial 1 if you wish to immediately connect to the incoming call
1455                          Dial 2 if you wish to send this caller to voicemail.
1456                          Dial 3 to send this caller to the torture menus.
1457                          Dial 4 to send this caller to a simple "go away" menu.
1458                 */
1459                 if (valid_priv_reply(opts, res2))
1460                         break;
1461                 /* invalid option */
1462                 res2 = ast_play_and_wait(peer, "vm-sorry");
1463         }
1464
1465         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1466                 ast_moh_stop(chan);
1467         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1468                 ast_indicate(chan, -1);
1469                 pa->sentringing = 0;
1470         }
1471         ast_autoservice_stop(chan);
1472         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1473                 /* map keypresses to various things, the index is res2 - '1' */
1474                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1475                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1476                 int i = res2 - '1';
1477                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1478                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1479                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1480         }
1481         switch (res2) {
1482         case '1':
1483                 break;
1484         case '2':
1485                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1486                 break;
1487         case '3':
1488                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1489                 break;
1490         case '4':
1491                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1492                 break;
1493         case '5':
1494                 /* XXX should we set status to DENY ? */
1495                 if (ast_test_flag64(opts, OPT_PRIVACY))
1496                         break;
1497                 /* if not privacy, then 5 is the same as "default" case */
1498         default: /* bad input or -1 if failure to start autoservice */
1499                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1500                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1501                           or,... put 'em thru to voicemail. */
1502                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1503                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1504                 /* XXX should we set status to DENY ? */
1505                 /* XXX what about the privacy flags ? */
1506                 break;
1507         }
1508
1509         if (res2 == '1') { /* the only case where we actually connect */
1510                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1511                    just clog things up, and it's not useful information, not being tied to a CID */
1512                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1513                         ast_filedelete(pa->privintro, NULL);
1514                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1515                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1516                         else
1517                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1518                 }
1519                 return 0; /* the good exit path */
1520         } else {
1521                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1522                 return -1;
1523         }
1524 }
1525
1526 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1527 static int setup_privacy_args(struct privacy_args *pa,
1528         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1529 {
1530         char callerid[60];
1531         int res;
1532         char *l;
1533         int silencethreshold;
1534
1535         if (!ast_strlen_zero(chan->cid.cid_num)) {
1536                 l = ast_strdupa(chan->cid.cid_num);
1537                 ast_shrink_phone_number(l);
1538                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1539                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1540                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1541                 } else {
1542                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1543                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1544                 }
1545         } else {
1546                 char *tnam, *tn2;
1547
1548                 tnam = ast_strdupa(chan->name);
1549                 /* clean the channel name so slashes don't try to end up in disk file name */
1550                 for (tn2 = tnam; *tn2; tn2++) {
1551                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1552                                 *tn2 = '=';
1553                 }
1554                 ast_verb(3, "Privacy-- callerid is empty\n");
1555
1556                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1557                 l = callerid;
1558                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1559         }
1560
1561         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1562
1563         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1564                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1565                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1566                 pa->privdb_val = AST_PRIVACY_ALLOW;
1567         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1568                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1569         }
1570         
1571         if (pa->privdb_val == AST_PRIVACY_DENY) {
1572                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1573                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1574                 return 0;
1575         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1576                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1577                 return 0; /* Is this right? */
1578         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1579                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1580                 return 0; /* is this right??? */
1581         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1582                 /* Get the user's intro, store it in priv-callerintros/$CID,
1583                    unless it is already there-- this should be done before the
1584                    call is actually dialed  */
1585
1586                 /* make sure the priv-callerintros dir actually exists */
1587                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1588                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1589                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1590                         return -1;
1591                 }
1592
1593                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1594                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1595                         /* the DELUX version of this code would allow this caller the
1596                            option to hear and retape their previously recorded intro.
1597                         */
1598                 } else {
1599                         int duration; /* for feedback from play_and_wait */
1600                         /* the file doesn't exist yet. Let the caller submit his
1601                            vocal intro for posterity */
1602                         /* priv-recordintro script:
1603
1604                            "At the tone, please say your name:"
1605
1606                         */
1607                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1608                         ast_answer(chan);
1609                         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 */
1610                                                                         /* don't think we'll need a lock removed, we took care of
1611                                                                            conflicts by naming the pa.privintro file */
1612                         if (res == -1) {
1613                                 /* Delete the file regardless since they hung up during recording */
1614                                 ast_filedelete(pa->privintro, NULL);
1615                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1616                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1617                                 else
1618                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1619                                 return -1;
1620                         }
1621                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1622                                 ast_waitstream(chan, "");
1623                 }
1624         }
1625         return 1; /* success */
1626 }
1627
1628 static void end_bridge_callback(void *data)
1629 {
1630         char buf[80];
1631         time_t end;
1632         struct ast_channel *chan = data;
1633
1634         if (!chan->cdr) {
1635                 return;
1636         }
1637
1638         time(&end);
1639
1640         ast_channel_lock(chan);
1641         if (chan->cdr->answer.tv_sec) {
1642                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->answer.tv_sec);
1643                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1644         }
1645
1646         if (chan->cdr->start.tv_sec) {
1647                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->start.tv_sec);
1648                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1649         }
1650         ast_channel_unlock(chan);
1651 }
1652
1653 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1654         bconfig->end_bridge_callback_data = originator;
1655 }
1656
1657 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
1658 {
1659         int res = -1; /* default: error */
1660         char *rest, *cur; /* scan the list of destinations */
1661         struct chanlist *outgoing = NULL; /* list of destinations */
1662         struct ast_channel *peer;
1663         int to; /* timeout */
1664         struct cause_args num = { chan, 0, 0, 0 };
1665         int cause;
1666         char numsubst[256];
1667         char cidname[AST_MAX_EXTENSION] = "";
1668
1669         struct ast_bridge_config config = { { 0, } };
1670         struct timeval calldurationlimit = { 0, };
1671         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1672         struct privacy_args pa = {
1673                 .sentringing = 0,
1674                 .privdb_val = 0,
1675                 .status = "INVALIDARGS",
1676         };
1677         int sentringing = 0, moh = 0;
1678         const char *outbound_group = NULL;
1679         int result = 0;
1680         char *parse;
1681         int opermode = 0;
1682         AST_DECLARE_APP_ARGS(args,
1683                 AST_APP_ARG(peers);
1684                 AST_APP_ARG(timeout);
1685                 AST_APP_ARG(options);
1686                 AST_APP_ARG(url);
1687         );
1688         struct ast_flags64 opts = { 0, };
1689         char *opt_args[OPT_ARG_ARRAY_SIZE];
1690         struct ast_datastore *datastore = NULL;
1691         int fulldial = 0, num_dialed = 0;
1692
1693         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1694         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1695         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1696         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1697         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1698         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1699
1700         if (ast_strlen_zero(data)) {
1701                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1702                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1703                 return -1;
1704         }
1705
1706         parse = ast_strdupa(data);
1707
1708         AST_STANDARD_APP_ARGS(args, parse);
1709
1710         if (!ast_strlen_zero(args.options) &&
1711                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1712                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1713                 goto done;
1714         }
1715
1716         if (ast_strlen_zero(args.peers)) {
1717                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1718                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1719                 goto done;
1720         }
1721
1722         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1723                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1724                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1725         }
1726
1727         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1728                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1729                 if (!calldurationlimit.tv_sec) {
1730                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1731                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1732                         goto done;
1733                 }
1734                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1735         }
1736
1737         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1738                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1739                 dtmfcalled = strsep(&dtmf_progress, ":");
1740                 dtmfcalling = strsep(&dtmf_progress, ":");
1741         }
1742
1743         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1744                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1745                         goto done;
1746         }
1747
1748         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1749                 ast_cdr_reset(chan->cdr, NULL);
1750         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1751                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1752
1753         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1754                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1755                 if (res <= 0)
1756                         goto out;
1757                 res = -1; /* reset default */
1758         }
1759
1760         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1761                 __ast_answer(chan, 0, 0);
1762         }
1763
1764         if (continue_exec)
1765                 *continue_exec = 0;
1766
1767         /* If a channel group has been specified, get it for use when we create peer channels */
1768
1769         ast_channel_lock(chan);
1770         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1771                 outbound_group = ast_strdupa(outbound_group);   
1772                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1773         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1774                 outbound_group = ast_strdupa(outbound_group);
1775         }
1776         ast_channel_unlock(chan);       
1777         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_IGNORE_CONNECTEDLINE | OPT_CANCEL_TIMEOUT);
1778
1779         /* loop through the list of dial destinations */
1780         rest = args.peers;
1781         while ((cur = strsep(&rest, "&")) ) {
1782                 struct chanlist *tmp;
1783                 struct ast_channel *tc; /* channel for this destination */
1784                 /* Get a technology/[device:]number pair */
1785                 char *number = cur;
1786                 char *interface = ast_strdupa(number);
1787                 char *tech = strsep(&number, "/");
1788                 /* find if we already dialed this interface */
1789                 struct ast_dialed_interface *di;
1790                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1791                 num_dialed++;
1792                 if (!number) {
1793                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1794                         goto out;
1795                 }
1796                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1797                         goto out;
1798                 if (opts.flags) {
1799                         ast_copy_flags64(tmp, &opts,
1800                                 OPT_CANCEL_ELSEWHERE |
1801                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1802                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1803                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1804                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1805                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1806                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1807                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1808                 }
1809                 ast_copy_string(numsubst, number, sizeof(numsubst));
1810                 /* Request the peer */
1811
1812                 ast_channel_lock(chan);
1813                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1814                 /* If the incoming channel has previously had connected line information
1815                  * set on it (perhaps through the CONNECTED_LINE dialplan function) then
1816                  * seed the calllist's connected line information with this previously
1817                  * acquired info
1818                  */
1819                 if (chan->connected.id.number) {
1820                         ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1821                 }
1822                 ast_channel_unlock(chan);
1823
1824                 if (datastore)
1825                         dialed_interfaces = datastore->data;
1826                 else {
1827                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1828                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1829                                 ast_free(tmp);
1830                                 goto out;
1831                         }
1832
1833                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1834
1835                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1836                                 ast_free(tmp);
1837                                 goto out;
1838                         }
1839
1840                         datastore->data = dialed_interfaces;
1841                         AST_LIST_HEAD_INIT(dialed_interfaces);
1842
1843                         ast_channel_lock(chan);
1844                         ast_channel_datastore_add(chan, datastore);
1845                         ast_channel_unlock(chan);
1846                 }
1847
1848                 AST_LIST_LOCK(dialed_interfaces);
1849                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1850                         if (!strcasecmp(di->interface, interface)) {
1851                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1852                                         di->interface);
1853                                 break;
1854                         }
1855                 }
1856                 AST_LIST_UNLOCK(dialed_interfaces);
1857
1858                 if (di) {
1859                         fulldial++;
1860                         ast_free(tmp);
1861                         continue;
1862                 }
1863
1864                 /* It is always ok to dial a Local interface.  We only keep track of
1865                  * which "real" interfaces have been dialed.  The Local channel will
1866                  * inherit this list so that if it ends up dialing a real interface,
1867                  * it won't call one that has already been called. */
1868                 if (strcasecmp(tech, "Local")) {
1869                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
1870                                 AST_LIST_UNLOCK(dialed_interfaces);
1871                                 ast_free(tmp);
1872                                 goto out;
1873                         }
1874                         strcpy(di->interface, interface);
1875
1876                         AST_LIST_LOCK(dialed_interfaces);
1877                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
1878                         AST_LIST_UNLOCK(dialed_interfaces);
1879                 }
1880
1881                 tc = ast_request(tech, chan->nativeformats, chan, numsubst, &cause);
1882                 if (!tc) {
1883                         /* If we can't, just go on to the next call */
1884                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1885                                 tech, cause, ast_cause2str(cause));
1886                         handle_cause(cause, &num);
1887                         if (!rest) /* we are on the last destination */
1888                                 chan->hangupcause = cause;
1889                         ast_free(tmp);
1890                         continue;
1891                 }
1892                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1893
1894                 ast_channel_lock(tc);
1895                 while (ast_channel_trylock(chan)) {
1896                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
1897                 }
1898                 /* Setup outgoing SDP to match incoming one */
1899                 if (!outgoing && !rest) {
1900                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
1901                 }
1902                 
1903                 /* Inherit specially named variables from parent channel */
1904                 ast_channel_inherit_variables(chan, tc);
1905                 ast_channel_datastore_inherit(chan, tc);
1906
1907                 tc->appl = "AppDial";
1908                 tc->data = "(Outgoing Line)";
1909                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
1910
1911                 /* If the new channel has no callerid, try to guess what it should be */
1912                 if (ast_strlen_zero(tc->cid.cid_num)) {
1913                         if (!ast_strlen_zero(chan->connected.id.number)) {
1914                                 ast_set_callerid(tc, chan->connected.id.number, chan->connected.id.name, chan->connected.ani);
1915                         } else if (!ast_strlen_zero(chan->cid.cid_dnid)) {
1916                                 ast_set_callerid(tc, chan->cid.cid_dnid, NULL, NULL);
1917                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
1918                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
1919                         }
1920                         ast_set_flag64(tmp, DIAL_NOCONNECTEDLINE);
1921                 }
1922                 
1923                 ast_connected_line_copy_from_caller(&tc->connected, &chan->cid);
1924
1925                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1926                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
1927
1928                 tc->cid.cid_tns = chan->cid.cid_tns;
1929
1930                 if (!ast_strlen_zero(chan->accountcode)) {
1931                         ast_string_field_set(tc, peeraccount, chan->accountcode);
1932                 }
1933                 tc->cdrflags = chan->cdrflags;
1934                 if (ast_strlen_zero(tc->musicclass))
1935                         ast_string_field_set(tc, musicclass, chan->musicclass);
1936
1937                 /* Pass ADSI CPE and transfer capability */
1938                 tc->adsicpe = chan->adsicpe;
1939                 tc->transfercapability = chan->transfercapability;
1940
1941                 /* If we have an outbound group, set this peer channel to it */
1942                 if (outbound_group)
1943                         ast_app_group_set_channel(tc, outbound_group);
1944                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
1945                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
1946                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1947
1948                 /* Check if we're forced by configuration */
1949                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
1950                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1951
1952
1953                 /* Inherit context and extension */
1954                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
1955                 if (!ast_strlen_zero(chan->macroexten))
1956                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1957                 else
1958                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1959
1960                 ast_channel_unlock(tc);
1961                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
1962
1963                 /* Save the info in cdr's that we called them */
1964                 if (chan->cdr)
1965                         ast_cdr_setdestchan(chan->cdr, tc->name);
1966
1967                 /* check the results of ast_call */
1968                 if (res) {
1969                         /* Again, keep going even if there's an error */
1970                         ast_debug(1, "ast call on peer returned %d\n", res);
1971                         ast_verb(3, "Couldn't call %s\n", numsubst);
1972                         if (tc->hangupcause) {
1973                                 chan->hangupcause = tc->hangupcause;
1974                         }
1975                         ast_channel_unlock(chan);
1976                         ast_hangup(tc);
1977                         tc = NULL;
1978                         ast_free(tmp);
1979                         continue;
1980                 } else {
1981                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
1982                         senddialevent(chan, tc, numsubst);
1983                         ast_verb(3, "Called %s\n", numsubst);
1984                         ast_channel_unlock(chan);
1985                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
1986                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
1987                         }
1988                 }
1989                 /* Put them in the list of outgoing thingies...  We're ready now.
1990                    XXX If we're forcibly removed, these outgoing calls won't get
1991                    hung up XXX */
1992                 ast_set_flag64(tmp, DIAL_STILLGOING);
1993                 tmp->chan = tc;
1994                 tmp->next = outgoing;
1995                 outgoing = tmp;
1996                 /* If this line is up, don't try anybody else */
1997                 if (outgoing->chan->_state == AST_STATE_UP)
1998                         break;
1999         }
2000         
2001         if (ast_strlen_zero(args.timeout)) {
2002                 to = -1;
2003         } else {
2004                 to = atoi(args.timeout);
2005                 if (to > 0)
2006                         to *= 1000;
2007                 else {
2008                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
2009                         to = -1;
2010                 }
2011         }
2012
2013         if (!outgoing) {
2014                 strcpy(pa.status, "CHANUNAVAIL");
2015                 if (fulldial == num_dialed) {
2016                         res = -1;
2017                         goto out;
2018                 }
2019         } else {
2020                 /* Our status will at least be NOANSWER */
2021                 strcpy(pa.status, "NOANSWER");
2022                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
2023                         moh = 1;
2024                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
2025                                 char *original_moh = ast_strdupa(chan->musicclass);
2026                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
2027                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
2028                                 ast_string_field_set(chan, musicclass, original_moh);
2029                         } else {
2030                                 ast_moh_start(chan, NULL, NULL);
2031                         }
2032                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2033                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
2034                         ast_indicate(chan, AST_CONTROL_RINGING);
2035                         sentringing++;
2036                 }
2037         }
2038
2039         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result, dtmf_progress);
2040
2041         /* The ast_channel_datastore_remove() function could fail here if the
2042          * datastore was moved to another channel during a masquerade. If this is
2043          * the case, don't free the datastore here because later, when the channel
2044          * to which the datastore was moved hangs up, it will attempt to free this
2045          * datastore again, causing a crash
2046          */
2047         if (!ast_channel_datastore_remove(chan, datastore))
2048                 ast_datastore_free(datastore);
2049         if (!peer) {
2050                 if (result) {
2051                         res = result;
2052                 } else if (to) { /* Musta gotten hung up */
2053                         res = -1;
2054                 } else { /* Nobody answered, next please? */
2055                         res = 0;
2056                 }
2057
2058                 /* SIP, in particular, sends back this error code to indicate an
2059                  * overlap dialled number needs more digits. */
2060                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
2061                         res = AST_PBX_INCOMPLETE;
2062                 }
2063
2064                 /* almost done, although the 'else' block is 400 lines */
2065         } else {
2066                 const char *number;
2067
2068                 strcpy(pa.status, "ANSWER");
2069                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2070                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
2071                    we will always return with -1 so that it is hung up properly after the
2072                    conversation.  */
2073                 hanguptree(outgoing, peer, 1);
2074                 outgoing = NULL;
2075                 /* If appropriate, log that we have a destination channel */
2076                 if (chan->cdr)
2077                         ast_cdr_setdestchan(chan->cdr, peer->name);
2078                 if (peer->name)
2079                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
2080                 
2081                 ast_channel_lock(peer);
2082                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
2083                 if (!number)
2084                         number = numsubst;
2085                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
2086                 ast_channel_unlock(peer);
2087
2088                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
2089                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
2090                         ast_channel_sendurl( peer, args.url );
2091                 }
2092                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
2093                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
2094                                 res = 0;
2095                                 goto out;
2096                         }
2097                 }
2098                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
2099                         res = 0;
2100                 } else {
2101                         int digit = 0;
2102                         /* Start autoservice on the other chan */
2103                         res = ast_autoservice_start(chan);
2104                         /* Now Stream the File */
2105                         if (!res)
2106                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2107                         if (!res) {
2108                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
2109                         }
2110                         /* Ok, done. stop autoservice */
2111                         res = ast_autoservice_stop(chan);
2112                         if (digit > 0 && !res)
2113                                 res = ast_senddigit(chan, digit, 0);
2114                         else
2115                                 res = digit;
2116
2117                 }
2118
2119                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2120                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2121                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2122                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2123                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2124                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2125                         peer->priority = chan->priority + 2;
2126                         ast_pbx_start(peer);
2127                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2128                         if (continue_exec)
2129                                 *continue_exec = 1;
2130                         res = 0;
2131                         goto done;
2132                 }
2133
2134                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2135                         struct ast_app *theapp;
2136                         const char *macro_result;
2137
2138                         res = ast_autoservice_start(chan);
2139                         if (res) {
2140                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2141                                 res = -1;
2142                         }
2143
2144                         theapp = pbx_findapp("Macro");
2145
2146                         if (theapp && !res) { /* XXX why check res here ? */
2147                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2148                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2149                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2150
2151                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2152                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2153                                 ast_debug(1, "Macro exited with status %d\n", res);
2154                                 res = 0;
2155                         } else {
2156                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2157                                 res = -1;
2158                         }
2159
2160                         if (ast_autoservice_stop(chan) < 0) {
2161                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2162                                 res = -1;
2163                         }
2164
2165                         ast_channel_lock(peer);
2166
2167                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2168                                 char *macro_transfer_dest;
2169
2170                                 if (!strcasecmp(macro_result, "BUSY")) {
2171                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2172                                         ast_set_flag64(peerflags, OPT_GO_ON);
2173                                         res = -1;
2174                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2175                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2176                                         ast_set_flag64(peerflags, OPT_GO_ON);
2177                                         res = -1;
2178                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2179                                         /* hangup peer and keep chan alive assuming the macro has changed
2180                                            the context / exten / priority or perhaps
2181                                            the next priority in the current exten is desired.
2182                                         */
2183                                         ast_set_flag64(peerflags, OPT_GO_ON);
2184                                         res = -1;
2185                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2186                                         /* Hangup both ends unless the caller has the g flag */
2187                                         res = -1;
2188                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2189                                         res = -1;
2190                                         /* perform a transfer to a new extension */
2191                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2192                                                 replace_macro_delimiter(macro_transfer_dest);
2193                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2194                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2195                                         }
2196                                 }
2197                         }
2198
2199                         ast_channel_unlock(peer);
2200                 }
2201
2202                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2203                         struct ast_app *theapp;
2204                         const char *gosub_result;
2205                         char *gosub_args, *gosub_argstart;
2206                         int res9 = -1;
2207
2208                         res9 = ast_autoservice_start(chan);
2209                         if (res9) {
2210                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2211                                 res9 = -1;
2212                         }
2213
2214                         theapp = pbx_findapp("Gosub");
2215
2216                         if (theapp && !res9) {
2217                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2218
2219                                 /* Set where we came from */
2220                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2221                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2222                                 peer->priority = 0;
2223
2224                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2225                                 if (gosub_argstart) {
2226                                         *gosub_argstart = 0;
2227                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2228                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2229                                                 gosub_args = NULL;
2230                                         }
2231                                         *gosub_argstart = ',';
2232                                 } else {
2233                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2234                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2235                                                 gosub_args = NULL;
2236                                         }
2237                                 }
2238
2239                                 if (gosub_args) {
2240                                         res9 = pbx_exec(peer, theapp, gosub_args);
2241                                         if (!res9) {
2242                                                 struct ast_pbx_args args;
2243                                                 /* A struct initializer fails to compile for this case ... */
2244                                                 memset(&args, 0, sizeof(args));
2245                                                 args.no_hangup_chan = 1;
2246                                                 ast_pbx_run_args(peer, &args);
2247                                         }
2248                                         ast_free(gosub_args);
2249                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2250                                 } else {
2251                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2252                                 }
2253
2254                         } else if (!res9) {
2255                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2256                                 res9 = -1;
2257                         }
2258
2259                         if (ast_autoservice_stop(chan) < 0) {
2260                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2261                                 res9 = -1;
2262                         }
2263                         
2264                         ast_channel_lock(peer);
2265
2266                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2267                                 char *gosub_transfer_dest;
2268
2269                                 if (!strcasecmp(gosub_result, "BUSY")) {
2270                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2271                                         ast_set_flag64(peerflags, OPT_GO_ON);
2272                                         res9 = -1;
2273                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2274                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2275                                         ast_set_flag64(peerflags, OPT_GO_ON);
2276                                         res9 = -1;
2277                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2278                                         /* hangup peer and keep chan alive assuming the macro has changed
2279                                            the context / exten / priority or perhaps
2280                                            the next priority in the current exten is desired.
2281                                         */
2282                                         ast_set_flag64(peerflags, OPT_GO_ON);
2283                                         res9 = -1;
2284                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2285                                         /* Hangup both ends unless the caller has the g flag */
2286                                         res9 = -1;
2287                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2288                                         res9 = -1;
2289                                         /* perform a transfer to a new extension */
2290                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2291                                                 replace_macro_delimiter(gosub_transfer_dest);
2292                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
2293                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2294                                         }
2295                                 }
2296                         }
2297
2298                         ast_channel_unlock(peer);       
2299                 }
2300
2301                 if (!res) {
2302                         if (!ast_tvzero(calldurationlimit)) {
2303                                 struct timeval whentohangup = calldurationlimit;
2304                                 peer->whentohangup = ast_tvadd(ast_tvnow(), whentohangup);
2305                         }
2306                         if (!ast_strlen_zero(dtmfcalled)) {
2307                                 ast_verb(3, "Sending DTMF '%s' to the called party.\n", dtmfcalled);
2308                                 res = ast_dtmf_stream(peer, chan, dtmfcalled, 250, 0);
2309                         }
2310                         if (!ast_strlen_zero(dtmfcalling)) {
2311                                 ast_verb(3, "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
2312                                 res = ast_dtmf_stream(chan, peer, dtmfcalling, 250, 0);
2313                         }
2314                 }
2315
2316                 if (res) { /* some error */
2317                         res = -1;
2318                 } else {
2319                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
2320                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
2321                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
2322                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
2323                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
2324                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
2325                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
2326                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
2327                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
2328                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
2329                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR))
2330                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
2331                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
2332                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
2333                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
2334                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
2335                         if (ast_test_flag64(peerflags, OPT_CALLEE_MIXMONITOR))
2336                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMIXMON);
2337                         if (ast_test_flag64(peerflags, OPT_CALLER_MIXMONITOR))
2338                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMIXMON);
2339                         if (ast_test_flag64(peerflags, OPT_GO_ON))
2340                                 ast_set_flag(&(config.features_caller), AST_FEATURE_NO_H_EXTEN);
2341
2342                         config.end_bridge_callback = end_bridge_callback;
2343                         config.end_bridge_callback_data = chan;
2344                         config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
2345                         
2346                         if (moh) {
2347                                 moh = 0;
2348                                 ast_moh_stop(chan);
2349                         } else if (sentringing) {
2350                                 sentringing = 0;
2351                                 ast_indicate(chan, -1);
2352                         }
2353                         /* Be sure no generators are left on it */
2354                         ast_deactivate_generator(chan);
2355                         /* Make sure channels are compatible */
2356                         res = ast_channel_make_compatible(chan, peer);
2357                         if (res < 0) {
2358                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
2359                                 ast_hangup(peer);
2360                                 res = -1;
2361                                 goto done;
2362                         }
2363                         if (opermode) {
2364                                 struct oprmode oprmode;
2365
2366                                 oprmode.peer = peer;
2367                                 oprmode.mode = opermode;
2368
2369                                 ast_channel_setoption(chan, AST_OPTION_OPRMODE, &oprmode, sizeof(oprmode), 0);
2370                         }
2371                         res = ast_bridge_call(chan, peer, &config);
2372                 }
2373
2374                 strcpy(peer->context, chan->context);
2375
2376                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
2377                         int autoloopflag;
2378                         int found;
2379                         int res9;
2380                         
2381                         strcpy(peer->exten, "h");
2382                         peer->priority = 1;
2383                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
2384                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
2385
2386                         while ((res9 = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num, &found, 1)) == 0)
2387                                 peer->priority++;
2388
2389                         if (found && res9) {
2390                                 /* Something bad happened, or a hangup has been requested. */
2391                                 ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2392                                 ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2393                         }
2394                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
2395                 }
2396                 if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON)) {
2397                         if(!ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {
2398                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GO_ON]);
2399                                 ast_parseable_goto(peer, opt_args[OPT_ARG_CALLEE_GO_ON]);
2400                         } else { /* F() */
2401                                 int res;
2402                                 res = ast_goto_if_exists(peer, chan->context, chan->exten, (chan->priority) + 1); 
2403                                 if (res == AST_PBX_GOTO_FAILED) {
2404                                         ast_hangup(peer);
2405                                         goto out;
2406                                 }
2407                         }
2408                         ast_pbx_start(peer);
2409                 } else {
2410                         if (!ast_check_hangup(chan))
2411                                 chan->hangupcause = peer->hangupcause;
2412                         ast_hangup(peer);
2413                 }
2414         }
2415 out:
2416         if (moh) {
2417                 moh = 0;
2418                 ast_moh_stop(chan);
2419         } else if (sentringing) {
2420                 sentringing = 0;
2421                 ast_indicate(chan, -1);
2422         }
2423         ast_channel_early_bridge(chan, NULL);
2424         hanguptree(outgoing, NULL, 0); /* In this case, there's no answer anywhere */
2425         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2426         senddialendevent(chan, pa.status);
2427         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
2428         
2429         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_INCOMPLETE)) {
2430                 if (!ast_tvzero(calldurationlimit))
2431                         memset(&chan->whentohangup, 0, sizeof(chan->whentohangup));
2432                 res = 0;
2433         }
2434
2435 done:
2436         if (config.warning_sound) {
2437                 ast_free((char *)config.warning_sound);
2438         }
2439         if (config.end_sound) {
2440                 ast_free((char *)config.end_sound);
2441         }
2442         if (config.start_sound) {
2443                 ast_free((char *)config.start_sound);
2444         }
2445         return res;
2446 }
2447
2448 static int dial_exec(struct ast_channel *chan, const char *data)
2449 {
2450         struct ast_flags64 peerflags;
2451
2452         memset(&peerflags, 0, sizeof(peerflags));
2453
2454         return dial_exec_full(chan, data, &peerflags, NULL);
2455 }
2456
2457 static int retrydial_exec(struct ast_channel *chan, const char *data)
2458 {
2459         char *parse;
2460         const char *context = NULL;
2461         int sleepms = 0, loops = 0, res = -1;
2462         struct ast_flags64 peerflags = { 0, };
2463         AST_DECLARE_APP_ARGS(args,
2464                 AST_APP_ARG(announce);
2465                 AST_APP_ARG(sleep);
2466                 AST_APP_ARG(retries);
2467                 AST_APP_ARG(dialdata);
2468         );
2469
2470         if (ast_strlen_zero(data)) {
2471                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
2472                 return -1;
2473         }
2474
2475         parse = ast_strdupa(data);
2476         AST_STANDARD_APP_ARGS(args, parse);
2477
2478         if (!ast_strlen_zero(args.sleep) && (sleepms = atoi(args.sleep)))
2479                 sleepms *= 1000;
2480
2481         if (!ast_strlen_zero(args.retries)) {
2482                 loops = atoi(args.retries);
2483         }
2484
2485         if (!args.dialdata) {
2486                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
2487                 goto done;
2488         }
2489
2490         if (sleepms < 1000)
2491                 sleepms = 10000;
2492
2493         if (!loops)
2494                 loops = -1; /* run forever */
2495
2496         ast_channel_lock(chan);
2497         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
2498         context = !ast_strlen_zero(context) ? ast_strdupa(context) : NULL;
2499         ast_channel_unlock(chan);
2500
2501         res = 0;
2502         while (loops) {
2503                 int continue_exec;
2504
2505                 chan->data = "Retrying";
2506                 if (ast_test_flag(chan, AST_FLAG_MOH))
2507                         ast_moh_stop(chan);
2508
2509                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
2510                 if (continue_exec)
2511                         break;
2512
2513                 if (res == 0) {
2514                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
2515                                 if (!ast_strlen_zero(args.announce)) {
2516                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2517                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2518                                                         ast_waitstream(chan, AST_DIGIT_ANY);
2519                                         } else
2520                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2521                                 }
2522                                 if (!res && sleepms) {
2523                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2524                                                 ast_moh_start(chan, NULL, NULL);
2525                                         res = ast_waitfordigit(chan, sleepms);
2526                                 }
2527                         } else {
2528                                 if (!ast_strlen_zero(args.announce)) {
2529                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2530                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2531                                                         res = ast_waitstream(chan, "");
2532                                         } else
2533                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2534                                 }
2535                                 if (sleepms) {
2536                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2537                                                 ast_moh_start(chan, NULL, NULL);
2538                                         if (!res)
2539                                                 res = ast_waitfordigit(chan, sleepms);
2540                                 }
2541                         }
2542                 }
2543
2544                 if (res < 0 || res == AST_PBX_INCOMPLETE) {
2545                         break;
2546                 } else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
2547                         if (onedigit_goto(chan, context, (char) res, 1)) {
2548                                 res = 0;
2549                                 break;
2550                         }
2551                 }
2552                 loops--;
2553         }
2554         if (loops == 0)
2555                 res = 0;
2556         else if (res == 1)
2557                 res = 0;
2558
2559         if (ast_test_flag(chan, AST_FLAG_MOH))
2560                 ast_moh_stop(chan);
2561  done:
2562         return res;
2563 }
2564
2565 static int unload_module(void)
2566 {
2567         int res;
2568         struct ast_context *con;
2569
2570         res = ast_unregister_application(app);
2571         res |= ast_unregister_application(rapp);
2572
2573         if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
2574                 ast_context_remove_extension2(con, "s", 1, NULL, 0);
2575                 ast_context_destroy(con, "app_dial"); /* leave nothing behind */
2576         }
2577
2578         return res;
2579 }
2580
2581 static int load_module(void)
2582 {
2583         int res;
2584         struct ast_context *con;
2585
2586         con = ast_context_find_or_create(NULL, NULL, "app_dial_gosub_virtual_context", "app_dial");
2587         if (!con)
2588                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
2589         else
2590                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "NoOp", ast_strdup(""), ast_free_ptr, "app_dial");
2591
2592         res = ast_register_application_xml(app, dial_exec);
2593         res |= ast_register_application_xml(rapp, retrydial_exec);
2594
2595         return res;
2596 }
2597
2598 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");