Clarifies trunkmaxsize, trunkfreq, and trunkmtu iax2 options
[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 chanlist_free(struct chanlist *outgoing)
586 {
587         ast_party_connected_line_free(&outgoing->connected);
588         ast_free(outgoing);
589 }
590
591 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
592 {
593         /* Hang up a tree of stuff */
594         struct chanlist *oo;
595         while (outgoing) {
596                 /* Hangup any existing lines we have open */
597                 if (outgoing->chan && (outgoing->chan != exception)) {
598                         if (answered_elsewhere) {
599                                 /* The flag is used for local channel inheritance and stuff */
600                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
601                                 /* This is for the channel drivers */
602                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
603                         }
604                         ast_party_connected_line_free(&outgoing->connected);
605                         ast_hangup(outgoing->chan);
606                 }
607                 oo = outgoing;
608                 outgoing = outgoing->next;
609                 chanlist_free(oo);
610         }
611 }
612
613 #define AST_MAX_WATCHERS 256
614
615 /*
616  * argument to handle_cause() and other functions.
617  */
618 struct cause_args {
619         struct ast_channel *chan;
620         int busy;
621         int congestion;
622         int nochan;
623 };
624
625 static void handle_cause(int cause, struct cause_args *num)
626 {
627         struct ast_cdr *cdr = num->chan->cdr;
628
629         switch(cause) {
630         case AST_CAUSE_BUSY:
631                 if (cdr)
632                         ast_cdr_busy(cdr);
633                 num->busy++;
634                 break;
635
636         case AST_CAUSE_CONGESTION:
637                 if (cdr)
638                         ast_cdr_failed(cdr);
639                 num->congestion++;
640                 break;
641
642         case AST_CAUSE_NO_ROUTE_DESTINATION:
643         case AST_CAUSE_UNREGISTERED:
644                 if (cdr)
645                         ast_cdr_failed(cdr);
646                 num->nochan++;
647                 break;
648
649         case AST_CAUSE_NO_ANSWER:
650                 if (cdr) {
651                         ast_cdr_noanswer(cdr);
652                 }
653                 break;
654         case AST_CAUSE_NORMAL_CLEARING:
655                 break;
656
657         default:
658                 num->nochan++;
659                 break;
660         }
661 }
662
663 /* free the buffer if allocated, and set the pointer to the second arg */
664 #define S_REPLACE(s, new_val)           \
665         do {                            \
666                 if (s)                  \
667                         ast_free(s);    \
668                 s = (new_val);          \
669         } while (0)
670
671 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
672 {
673         char rexten[2] = { exten, '\0' };
674
675         if (context) {
676                 if (!ast_goto_if_exists(chan, context, rexten, pri))
677                         return 1;
678         } else {
679                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
680                         return 1;
681                 else if (!ast_strlen_zero(chan->macrocontext)) {
682                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
683                                 return 1;
684                 }
685         }
686         return 0;
687 }
688
689 /* do not call with chan lock held */
690 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
691 {
692         const char *context;
693         const char *exten;
694
695         ast_channel_lock(chan);
696         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
697         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
698         ast_channel_unlock(chan);
699
700         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
701 }
702
703 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
704 {
705         manager_event(EVENT_FLAG_CALL, "Dial",
706                 "SubEvent: Begin\r\n"
707                 "Channel: %s\r\n"
708                 "Destination: %s\r\n"
709                 "CallerIDNum: %s\r\n"
710                 "CallerIDName: %s\r\n"
711                 "UniqueID: %s\r\n"
712                 "DestUniqueID: %s\r\n"
713                 "Dialstring: %s\r\n",
714                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
715                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
716                 dst->uniqueid, dialstring ? dialstring : "");
717 }
718
719 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
720 {
721         manager_event(EVENT_FLAG_CALL, "Dial",
722                 "SubEvent: End\r\n"
723                 "Channel: %s\r\n"
724                 "UniqueID: %s\r\n"
725                 "DialStatus: %s\r\n",
726                 src->name, src->uniqueid, dialstatus);
727 }
728
729 /*!
730  * helper function for wait_for_answer()
731  *
732  * XXX this code is highly suspicious, as it essentially overwrites
733  * the outgoing channel without properly deleting it.
734  *
735  * \todo eventually this function should be intergrated into and replaced by ast_call_forward() 
736  */
737 static void do_forward(struct chanlist *o,
738         struct cause_args *num, struct ast_flags64 *peerflags, int single, int *to)
739 {
740         char tmpchan[256];
741         struct ast_channel *original = o->chan;
742         struct ast_channel *c = o->chan; /* the winner */
743         struct ast_channel *in = num->chan; /* the input channel */
744         struct ast_party_redirecting *apr = &o->chan->redirecting;
745         struct ast_party_connected_line *apc = &o->chan->connected;
746         char *stuff;
747         char *tech;
748         int cause;
749
750         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
751         if ((stuff = strchr(tmpchan, '/'))) {
752                 *stuff++ = '\0';
753                 tech = tmpchan;
754         } else {
755                 const char *forward_context;
756                 ast_channel_lock(c);
757                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
758                 if (ast_strlen_zero(forward_context)) {
759                         forward_context = NULL;
760                 }
761                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
762                 ast_channel_unlock(c);
763                 stuff = tmpchan;
764                 tech = "Local";
765         }
766
767         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, c->call_forward, NULL);
768
769         /* Before processing channel, go ahead and check for forwarding */
770         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
771         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
772         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
773                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
774                 c = o->chan = NULL;
775                 cause = AST_CAUSE_BUSY;
776         } else {
777                 /* Setup parameters */
778                 c = o->chan = ast_request(tech, in->nativeformats, in, stuff, &cause);
779                 if (c) {
780                         if (single)
781                                 ast_channel_make_compatible(o->chan, in);
782                         ast_channel_inherit_variables(in, o->chan);
783                         ast_channel_datastore_inherit(in, o->chan);
784                 } else
785                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
786         }
787         if (!c) {
788                 ast_clear_flag64(o, DIAL_STILLGOING);
789                 handle_cause(cause, num);
790                 ast_hangup(original);
791         } else {
792                 if (single) {
793                         ast_rtp_instance_early_bridge_make_compatible(c, in);
794                 }
795
796                 c->cdrflags = in->cdrflags;
797
798                 ast_channel_set_redirecting(c, apr);
799                 ast_channel_lock(c);
800                 while (ast_channel_trylock(in)) {
801                         CHANNEL_DEADLOCK_AVOIDANCE(c);
802                 }
803                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(original->cid.cid_rdnis, S_OR(in->macroexten, in->exten))));
804
805                 c->cid.cid_tns = in->cid.cid_tns;
806
807                 if (ast_test_flag64(o, OPT_FORCECLID)) {
808                         S_REPLACE(c->cid.cid_num, ast_strdupa(S_OR(in->macroexten, in->exten)));
809                         S_REPLACE(c->cid.cid_name, NULL);
810                         ast_string_field_set(c, accountcode, c->accountcode);
811                 } else {
812                         ast_party_caller_copy(&c->cid, &in->cid);
813                         ast_string_field_set(c, accountcode, in->accountcode);
814                 }
815                 ast_party_connected_line_copy(&c->connected, apc);
816
817                 S_REPLACE(in->cid.cid_rdnis, ast_strdup(c->cid.cid_rdnis));
818                 ast_channel_update_redirecting(in, apr);
819
820                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
821                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
822                         *to = -1;
823                 }
824
825                 ast_channel_unlock(in);
826                 ast_channel_unlock(c);
827
828                 if (ast_call(c, tmpchan, 0)) {
829                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
830                         ast_clear_flag64(o, DIAL_STILLGOING);
831                         ast_hangup(original);
832                         ast_hangup(c);
833                         c = o->chan = NULL;
834                         num->nochan++;
835                 } else {
836                         ast_channel_lock(c);
837                         while (ast_channel_trylock(in)) {
838                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
839                         }
840                         senddialevent(in, c, stuff);
841                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
842                                 char cidname[AST_MAX_EXTENSION] = "";
843                                 const char *tmpexten;
844                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
845                                 ast_channel_unlock(in);
846                                 ast_channel_unlock(c);
847                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
848                         } else {
849                                 ast_channel_unlock(in);
850                                 ast_channel_unlock(c);
851                         }
852                         /* Hangup the original channel now, in case we needed it */
853                         ast_hangup(original);
854                 }
855                 if (single) {
856                         ast_indicate(in, -1);
857                 }
858         }
859 }
860
861 /* argument used for some functions. */
862 struct privacy_args {
863         int sentringing;
864         int privdb_val;
865         char privcid[256];
866         char privintro[1024];
867         char status[256];
868 };
869
870 static struct ast_channel *wait_for_answer(struct ast_channel *in,
871         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
872         struct privacy_args *pa,
873         const struct cause_args *num_in, int *result, char *dtmf_progress)
874 {
875         struct cause_args num = *num_in;
876         int prestart = num.busy + num.congestion + num.nochan;
877         int orig = *to;
878         struct ast_channel *peer = NULL;
879         /* single is set if only one destination is enabled */
880         int single = outgoing && !outgoing->next;
881 #ifdef HAVE_EPOLL
882         struct chanlist *epollo;
883 #endif
884         struct ast_party_connected_line connected_caller;
885         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
886
887         ast_party_connected_line_init(&connected_caller);
888         if (single) {
889                 /* Turn off hold music, etc */
890                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK))
891                         ast_deactivate_generator(in);
892
893                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
894                 ast_channel_make_compatible(outgoing->chan, in);
895
896                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_NOCONNECTEDLINE)) {
897                         ast_channel_lock(outgoing->chan);
898                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->cid);
899                         ast_channel_unlock(outgoing->chan);
900                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
901                         ast_channel_update_connected_line(in, &connected_caller);
902                         ast_party_connected_line_free(&connected_caller);
903                 }
904         }
905
906 #ifdef HAVE_EPOLL
907         for (epollo = outgoing; epollo; epollo = epollo->next)
908                 ast_poll_channel_add(in, epollo->chan);
909 #endif
910
911         while (*to && !peer) {
912                 struct chanlist *o;
913                 int pos = 0; /* how many channels do we handle */
914                 int numlines = prestart;
915                 struct ast_channel *winner;
916                 struct ast_channel *watchers[AST_MAX_WATCHERS];
917
918                 watchers[pos++] = in;
919                 for (o = outgoing; o; o = o->next) {
920                         /* Keep track of important channels */
921                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
922                                 watchers[pos++] = o->chan;
923                         numlines++;
924                 }
925                 if (pos == 1) { /* only the input channel is available */
926                         if (numlines == (num.busy + num.congestion + num.nochan)) {
927                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
928                                 if (num.busy)
929                                         strcpy(pa->status, "BUSY");
930                                 else if (num.congestion)
931                                         strcpy(pa->status, "CONGESTION");
932                                 else if (num.nochan)
933                                         strcpy(pa->status, "CHANUNAVAIL");
934                         } else {
935                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
936                         }
937                         *to = 0;
938                         return NULL;
939                 }
940                 winner = ast_waitfor_n(watchers, pos, to);
941                 for (o = outgoing; o; o = o->next) {
942                         struct ast_frame *f;
943                         struct ast_channel *c = o->chan;
944
945                         if (c == NULL)
946                                 continue;
947                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
948                                 if (!peer) {
949                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
950                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
951                                                 if (o->connected.id.number) {
952                                                         if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
953                                                                 ast_channel_update_connected_line(in, &o->connected);
954                                                         }
955                                                 } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
956                                                         ast_channel_lock(c);
957                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
958                                                         ast_channel_unlock(c);
959                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
960                                                         ast_channel_update_connected_line(in, &connected_caller);
961                                                         ast_party_connected_line_free(&connected_caller);
962                                                 }
963                                         }
964                                         peer = c;
965                                         ast_copy_flags64(peerflags, o,
966                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
967                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
968                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
969                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
970                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
971                                                 DIAL_NOFORWARDHTML);
972                                         ast_string_field_set(c, dialcontext, "");
973                                         ast_copy_string(c->exten, "", sizeof(c->exten));
974                                 }
975                                 continue;
976                         }
977                         if (c != winner)
978                                 continue;
979                         /* here, o->chan == c == winner */
980                         if (!ast_strlen_zero(c->call_forward)) {
981                                 pa->sentringing = 0;
982                                 do_forward(o, &num, peerflags, single, to);
983                                 continue;
984                         }
985                         f = ast_read(winner);
986                         if (!f) {
987                                 in->hangupcause = c->hangupcause;
988 #ifdef HAVE_EPOLL
989                                 ast_poll_channel_del(in, c);
990 #endif
991                                 ast_hangup(c);
992                                 c = o->chan = NULL;
993                                 ast_clear_flag64(o, DIAL_STILLGOING);
994                                 handle_cause(in->hangupcause, &num);
995                                 continue;
996                         }
997                         if (f->frametype == AST_FRAME_CONTROL) {
998                                 switch(f->subclass) {
999                                 case AST_CONTROL_ANSWER:
1000                                         /* This is our guy if someone answered. */
1001                                         if (!peer) {
1002                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
1003                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1004                                                         if (o->connected.id.number) {
1005                                                                 if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1006                                                                         ast_channel_update_connected_line(in, &o->connected);
1007                                                                 }
1008                                                         } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
1009                                                                 ast_channel_lock(c);
1010                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
1011                                                                 ast_channel_unlock(c);
1012                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1013                                                                 ast_channel_update_connected_line(in, &connected_caller);
1014                                                                 ast_party_connected_line_free(&connected_caller);
1015                                                         }
1016                                                 }
1017                                                 peer = c;
1018                                                 if (peer->cdr) {
1019                                                         peer->cdr->answer = ast_tvnow();
1020                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
1021                                                 }
1022                                                 ast_copy_flags64(peerflags, o,
1023                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1024                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1025                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1026                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1027                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1028                                                         DIAL_NOFORWARDHTML);
1029                                                 ast_string_field_set(c, dialcontext, "");
1030                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
1031                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1032                                                         /* Setup early bridge if appropriate */
1033                                                         ast_channel_early_bridge(in, peer);
1034                                         }
1035                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1036                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1037                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1038                                         break;
1039                                 case AST_CONTROL_BUSY:
1040                                         ast_verb(3, "%s is busy\n", c->name);
1041                                         in->hangupcause = c->hangupcause;
1042                                         ast_hangup(c);
1043                                         c = o->chan = NULL;
1044                                         ast_clear_flag64(o, DIAL_STILLGOING);
1045                                         handle_cause(AST_CAUSE_BUSY, &num);
1046                                         break;
1047                                 case AST_CONTROL_CONGESTION:
1048                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1049                                         in->hangupcause = c->hangupcause;
1050                                         ast_hangup(c);
1051                                         c = o->chan = NULL;
1052                                         ast_clear_flag64(o, DIAL_STILLGOING);
1053                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1054                                         break;
1055                                 case AST_CONTROL_RINGING:
1056                                         ast_verb(3, "%s is ringing\n", c->name);
1057                                         /* Setup early media if appropriate */
1058                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1059                                                 ast_channel_early_bridge(in, c);
1060                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1061                                                 ast_indicate(in, AST_CONTROL_RINGING);
1062                                                 pa->sentringing++;
1063                                         }
1064                                         break;
1065                                 case AST_CONTROL_PROGRESS:
1066                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1067                                         /* Setup early media if appropriate */
1068                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1069                                                 ast_channel_early_bridge(in, c);
1070                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1071                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
1072                                                 if(!ast_strlen_zero(dtmf_progress)) {
1073                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1074                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1075                                                 }
1076                                         break;
1077                                 case AST_CONTROL_VIDUPDATE:
1078                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1079                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1080                                         break;
1081                                 case AST_CONTROL_SRCUPDATE:
1082                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1083                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1084                                         break;
1085                                 case AST_CONTROL_CONNECTED_LINE:
1086                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1087                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1088                                         } else if (!single) {
1089                                                 struct ast_party_connected_line connected;
1090                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1091                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1092                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1093                                                 ast_party_connected_line_set(&o->connected, &connected);
1094                                                 ast_party_connected_line_free(&connected);
1095                                         } else {
1096                                                 if (ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1097                                                         ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1098                                                 }
1099                                         }
1100                                         break;
1101                                 case AST_CONTROL_REDIRECTING:
1102                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1103                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1104                                         } else {
1105                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1106                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1107                                                 pa->sentringing = 0;
1108                                         }
1109                                         break;
1110                                 case AST_CONTROL_PROCEEDING:
1111                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1112                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1113                                                 ast_channel_early_bridge(in, c);
1114                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1115                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1116                                         break;
1117                                 case AST_CONTROL_HOLD:
1118                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1119                                         ast_indicate(in, AST_CONTROL_HOLD);
1120                                         break;
1121                                 case AST_CONTROL_UNHOLD:
1122                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1123                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1124                                         break;
1125                                 case AST_CONTROL_OFFHOOK:
1126                                 case AST_CONTROL_FLASH:
1127                                         /* Ignore going off hook and flash */
1128                                         break;
1129                                 case -1:
1130                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1131                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1132                                                 ast_indicate(in, -1);
1133                                                 pa->sentringing = 0;
1134                                         }
1135                                         break;
1136                                 default:
1137                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
1138                                 }
1139                         } else if (single) {
1140                                 switch (f->frametype) {
1141                                         case AST_FRAME_VOICE:
1142                                         case AST_FRAME_IMAGE:
1143                                         case AST_FRAME_TEXT:
1144                                                 if (ast_write(in, f)) {
1145                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1146                                                 }
1147                                                 break;
1148                                         case AST_FRAME_HTML:
1149                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass, f->data.ptr, f->datalen) == -1) {
1150                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1151                                                 }
1152                                                 break;
1153                                         default:
1154                                                 break;
1155                                 }
1156                         }
1157                         ast_frfree(f);
1158                 } /* end for */
1159                 if (winner == in) {
1160                         struct ast_frame *f = ast_read(in);
1161 #if 0
1162                         if (f && (f->frametype != AST_FRAME_VOICE))
1163                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1164                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1165                                 printf("Hangup received on %s\n", in->name);
1166 #endif
1167                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
1168                                 /* Got hung up */
1169                                 *to = -1;
1170                                 strcpy(pa->status, "CANCEL");
1171                                 ast_cdr_noanswer(in->cdr);
1172                                 if (f) {
1173                                         if (f->data.uint32) {
1174                                                 in->hangupcause = f->data.uint32;
1175                                         }
1176                                         ast_frfree(f);
1177                                 }
1178                                 return NULL;
1179                         }
1180
1181                         /* now f is guaranteed non-NULL */
1182                         if (f->frametype == AST_FRAME_DTMF) {
1183                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1184                                         const char *context;
1185                                         ast_channel_lock(in);
1186                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1187                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
1188                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1189                                                 *to = 0;
1190                                                 ast_cdr_noanswer(in->cdr);
1191                                                 *result = f->subclass;
1192                                                 strcpy(pa->status, "CANCEL");
1193                                                 ast_frfree(f);
1194                                                 ast_channel_unlock(in);
1195                                                 return NULL;
1196                                         }
1197                                         ast_channel_unlock(in);
1198                                 }
1199
1200                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1201                                         detect_disconnect(in, f->subclass, featurecode)) {
1202                                         ast_verb(3, "User requested call disconnect.\n");
1203                                         *to = 0;
1204                                         strcpy(pa->status, "CANCEL");
1205                                         ast_cdr_noanswer(in->cdr);
1206                                         ast_frfree(f);
1207                                         return NULL;
1208                                 }
1209                         }
1210
1211                         /* Forward HTML stuff */
1212                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1213                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass, f->data.ptr, f->datalen) == -1)
1214                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1215
1216                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1217                                 if (ast_write(outgoing->chan, f))
1218                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1219                         }
1220                         if (single && (f->frametype == AST_FRAME_CONTROL)) { 
1221                                 if ((f->subclass == AST_CONTROL_HOLD) ||
1222                                     (f->subclass == AST_CONTROL_UNHOLD) ||
1223                                     (f->subclass == AST_CONTROL_VIDUPDATE) ||
1224                                     (f->subclass == AST_CONTROL_SRCUPDATE) ||
1225                                     (f->subclass == AST_CONTROL_REDIRECTING)) {
1226                                         ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
1227                                         ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1228                                 } else if (f->subclass == AST_CONTROL_CONNECTED_LINE) {
1229                                         if (ast_channel_connected_line_macro(in, outgoing->chan, f, 0, 1)) {
1230                                                 ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1231                                         }
1232                                 }
1233                         }
1234                         ast_frfree(f);
1235                 }
1236                 if (!*to)
1237                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1238                 if (!*to || ast_check_hangup(in))
1239                         ast_cdr_noanswer(in->cdr);
1240         }
1241
1242 #ifdef HAVE_EPOLL
1243         for (epollo = outgoing; epollo; epollo = epollo->next) {
1244                 if (epollo->chan)
1245                         ast_poll_channel_del(in, epollo->chan);
1246         }
1247 #endif
1248
1249         return peer;
1250 }
1251
1252 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1253 {
1254         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1255         struct ast_call_feature feature = { 0, };
1256         int res;
1257
1258         ast_str_append(&featurecode, 1, "%c", code);
1259
1260         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1261
1262         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1263                 ast_str_reset(featurecode);
1264         }
1265         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1266                 return 1;
1267         }
1268
1269         return 0;
1270 }
1271
1272 static void replace_macro_delimiter(char *s)
1273 {
1274         for (; *s; s++)
1275                 if (*s == '^')
1276                         *s = ',';
1277 }
1278
1279 /* returns true if there is a valid privacy reply */
1280 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1281 {
1282         if (res < '1')
1283                 return 0;
1284         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1285                 return 1;
1286         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1287                 return 1;
1288         return 0;
1289 }
1290
1291 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1292         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1293 {
1294
1295         int res2;
1296         int loopcount = 0;
1297
1298         /* Get the user's intro, store it in priv-callerintros/$CID,
1299            unless it is already there-- this should be done before the
1300            call is actually dialed  */
1301
1302         /* all ring indications and moh for the caller has been halted as soon as the
1303            target extension was picked up. We are going to have to kill some
1304            time and make the caller believe the peer hasn't picked up yet */
1305
1306         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1307                 char *original_moh = ast_strdupa(chan->musicclass);
1308                 ast_indicate(chan, -1);
1309                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1310                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1311                 ast_string_field_set(chan, musicclass, original_moh);
1312         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1313                 ast_indicate(chan, AST_CONTROL_RINGING);
1314                 pa->sentringing++;
1315         }
1316
1317         /* Start autoservice on the other chan ?? */
1318         res2 = ast_autoservice_start(chan);
1319         /* Now Stream the File */
1320         for (loopcount = 0; loopcount < 3; loopcount++) {
1321                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1322                         break;
1323                 if (!res2) /* on timeout, play the message again */
1324                         res2 = ast_play_and_wait(peer, "priv-callpending");
1325                 if (!valid_priv_reply(opts, res2))
1326                         res2 = 0;
1327                 /* priv-callpending script:
1328                    "I have a caller waiting, who introduces themselves as:"
1329                 */
1330                 if (!res2)
1331                         res2 = ast_play_and_wait(peer, pa->privintro);
1332                 if (!valid_priv_reply(opts, res2))
1333                         res2 = 0;
1334                 /* now get input from the called party, as to their choice */
1335                 if (!res2) {
1336                         /* XXX can we have both, or they are mutually exclusive ? */
1337                         if (ast_test_flag64(opts, OPT_PRIVACY))
1338                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1339                         if (ast_test_flag64(opts, OPT_SCREENING))
1340                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1341                 }
1342                 /*! \page DialPrivacy Dial Privacy scripts
1343                 \par priv-callee-options script:
1344                         "Dial 1 if you wish this caller to reach you directly in the future,
1345                                 and immediately connect to their incoming call
1346                          Dial 2 if you wish to send this caller to voicemail now and
1347                                 forevermore.
1348                          Dial 3 to send this caller to the torture menus, now and forevermore.
1349                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1350                          Dial 5 to allow this caller to come straight thru to you in the future,
1351                                 but right now, just this once, send them to voicemail."
1352                 \par screen-callee-options script:
1353                         "Dial 1 if you wish to immediately connect to the incoming call
1354                          Dial 2 if you wish to send this caller to voicemail.
1355                          Dial 3 to send this caller to the torture menus.
1356                          Dial 4 to send this caller to a simple "go away" menu.
1357                 */
1358                 if (valid_priv_reply(opts, res2))
1359                         break;
1360                 /* invalid option */
1361                 res2 = ast_play_and_wait(peer, "vm-sorry");
1362         }
1363
1364         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1365                 ast_moh_stop(chan);
1366         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1367                 ast_indicate(chan, -1);
1368                 pa->sentringing = 0;
1369         }
1370         ast_autoservice_stop(chan);
1371         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1372                 /* map keypresses to various things, the index is res2 - '1' */
1373                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1374                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1375                 int i = res2 - '1';
1376                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1377                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1378                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1379         }
1380         switch (res2) {
1381         case '1':
1382                 break;
1383         case '2':
1384                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1385                 break;
1386         case '3':
1387                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1388                 break;
1389         case '4':
1390                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1391                 break;
1392         case '5':
1393                 /* XXX should we set status to DENY ? */
1394                 if (ast_test_flag64(opts, OPT_PRIVACY))
1395                         break;
1396                 /* if not privacy, then 5 is the same as "default" case */
1397         default: /* bad input or -1 if failure to start autoservice */
1398                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1399                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1400                           or,... put 'em thru to voicemail. */
1401                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1402                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1403                 /* XXX should we set status to DENY ? */
1404                 /* XXX what about the privacy flags ? */
1405                 break;
1406         }
1407
1408         if (res2 == '1') { /* the only case where we actually connect */
1409                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1410                    just clog things up, and it's not useful information, not being tied to a CID */
1411                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1412                         ast_filedelete(pa->privintro, NULL);
1413                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1414                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1415                         else
1416                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1417                 }
1418                 return 0; /* the good exit path */
1419         } else {
1420                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1421                 return -1;
1422         }
1423 }
1424
1425 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1426 static int setup_privacy_args(struct privacy_args *pa,
1427         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1428 {
1429         char callerid[60];
1430         int res;
1431         char *l;
1432         int silencethreshold;
1433
1434         if (!ast_strlen_zero(chan->cid.cid_num)) {
1435                 l = ast_strdupa(chan->cid.cid_num);
1436                 ast_shrink_phone_number(l);
1437                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1438                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1439                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1440                 } else {
1441                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1442                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1443                 }
1444         } else {
1445                 char *tnam, *tn2;
1446
1447                 tnam = ast_strdupa(chan->name);
1448                 /* clean the channel name so slashes don't try to end up in disk file name */
1449                 for (tn2 = tnam; *tn2; tn2++) {
1450                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1451                                 *tn2 = '=';
1452                 }
1453                 ast_verb(3, "Privacy-- callerid is empty\n");
1454
1455                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1456                 l = callerid;
1457                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1458         }
1459
1460         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1461
1462         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1463                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1464                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1465                 pa->privdb_val = AST_PRIVACY_ALLOW;
1466         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1467                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1468         }
1469         
1470         if (pa->privdb_val == AST_PRIVACY_DENY) {
1471                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1472                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1473                 return 0;
1474         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1475                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1476                 return 0; /* Is this right? */
1477         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1478                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1479                 return 0; /* is this right??? */
1480         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1481                 /* Get the user's intro, store it in priv-callerintros/$CID,
1482                    unless it is already there-- this should be done before the
1483                    call is actually dialed  */
1484
1485                 /* make sure the priv-callerintros dir actually exists */
1486                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1487                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1488                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1489                         return -1;
1490                 }
1491
1492                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1493                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1494                         /* the DELUX version of this code would allow this caller the
1495                            option to hear and retape their previously recorded intro.
1496                         */
1497                 } else {
1498                         int duration; /* for feedback from play_and_wait */
1499                         /* the file doesn't exist yet. Let the caller submit his
1500                            vocal intro for posterity */
1501                         /* priv-recordintro script:
1502
1503                            "At the tone, please say your name:"
1504
1505                         */
1506                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1507                         ast_answer(chan);
1508                         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 */
1509                                                                         /* don't think we'll need a lock removed, we took care of
1510                                                                            conflicts by naming the pa.privintro file */
1511                         if (res == -1) {
1512                                 /* Delete the file regardless since they hung up during recording */
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                                 return -1;
1519                         }
1520                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1521                                 ast_waitstream(chan, "");
1522                 }
1523         }
1524         return 1; /* success */
1525 }
1526
1527 static void end_bridge_callback(void *data)
1528 {
1529         char buf[80];
1530         time_t end;
1531         struct ast_channel *chan = data;
1532
1533         if (!chan->cdr) {
1534                 return;
1535         }
1536
1537         time(&end);
1538
1539         ast_channel_lock(chan);
1540         if (chan->cdr->answer.tv_sec) {
1541                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->answer.tv_sec);
1542                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1543         }
1544
1545         if (chan->cdr->start.tv_sec) {
1546                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->start.tv_sec);
1547                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1548         }
1549         ast_channel_unlock(chan);
1550 }
1551
1552 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1553         bconfig->end_bridge_callback_data = originator;
1554 }
1555
1556 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
1557 {
1558         int res = -1; /* default: error */
1559         char *rest, *cur; /* scan the list of destinations */
1560         struct chanlist *outgoing = NULL; /* list of destinations */
1561         struct ast_channel *peer;
1562         int to; /* timeout */
1563         struct cause_args num = { chan, 0, 0, 0 };
1564         int cause;
1565         char numsubst[256];
1566         char cidname[AST_MAX_EXTENSION] = "";
1567
1568         struct ast_bridge_config config = { { 0, } };
1569         struct timeval calldurationlimit = { 0, };
1570         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1571         struct privacy_args pa = {
1572                 .sentringing = 0,
1573                 .privdb_val = 0,
1574                 .status = "INVALIDARGS",
1575         };
1576         int sentringing = 0, moh = 0;
1577         const char *outbound_group = NULL;
1578         int result = 0;
1579         char *parse;
1580         int opermode = 0;
1581         AST_DECLARE_APP_ARGS(args,
1582                 AST_APP_ARG(peers);
1583                 AST_APP_ARG(timeout);
1584                 AST_APP_ARG(options);
1585                 AST_APP_ARG(url);
1586         );
1587         struct ast_flags64 opts = { 0, };
1588         char *opt_args[OPT_ARG_ARRAY_SIZE];
1589         struct ast_datastore *datastore = NULL;
1590         int fulldial = 0, num_dialed = 0;
1591
1592         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1593         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1594         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1595         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1596         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1597         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1598
1599         if (ast_strlen_zero(data)) {
1600                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1601                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1602                 return -1;
1603         }
1604
1605         parse = ast_strdupa(data);
1606
1607         AST_STANDARD_APP_ARGS(args, parse);
1608
1609         if (!ast_strlen_zero(args.options) &&
1610                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1611                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1612                 goto done;
1613         }
1614
1615         if (ast_strlen_zero(args.peers)) {
1616                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1617                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1618                 goto done;
1619         }
1620
1621         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1622                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1623                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1624         }
1625
1626         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1627                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1628                 if (!calldurationlimit.tv_sec) {
1629                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1630                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1631                         goto done;
1632                 }
1633                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1634         }
1635
1636         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1637                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1638                 dtmfcalled = strsep(&dtmf_progress, ":");
1639                 dtmfcalling = strsep(&dtmf_progress, ":");
1640         }
1641
1642         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1643                 if (ast_bridge_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1644                         goto done;
1645         }
1646
1647         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1648                 ast_cdr_reset(chan->cdr, NULL);
1649         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1650                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1651
1652         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1653                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1654                 if (res <= 0)
1655                         goto out;
1656                 res = -1; /* reset default */
1657         }
1658
1659         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1660                 __ast_answer(chan, 0, 0);
1661         }
1662
1663         if (continue_exec)
1664                 *continue_exec = 0;
1665
1666         /* If a channel group has been specified, get it for use when we create peer channels */
1667
1668         ast_channel_lock(chan);
1669         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1670                 outbound_group = ast_strdupa(outbound_group);   
1671                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1672         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1673                 outbound_group = ast_strdupa(outbound_group);
1674         }
1675         ast_channel_unlock(chan);       
1676         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);
1677
1678         /* loop through the list of dial destinations */
1679         rest = args.peers;
1680         while ((cur = strsep(&rest, "&")) ) {
1681                 struct chanlist *tmp;
1682                 struct ast_channel *tc; /* channel for this destination */
1683                 /* Get a technology/[device:]number pair */
1684                 char *number = cur;
1685                 char *interface = ast_strdupa(number);
1686                 char *tech = strsep(&number, "/");
1687                 /* find if we already dialed this interface */
1688                 struct ast_dialed_interface *di;
1689                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1690                 num_dialed++;
1691                 if (!number) {
1692                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1693                         goto out;
1694                 }
1695                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1696                         goto out;
1697                 if (opts.flags) {
1698                         ast_copy_flags64(tmp, &opts,
1699                                 OPT_CANCEL_ELSEWHERE |
1700                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1701                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1702                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1703                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1704                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1705                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1706                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1707                 }
1708                 ast_copy_string(numsubst, number, sizeof(numsubst));
1709                 /* Request the peer */
1710
1711                 ast_channel_lock(chan);
1712                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1713                 /* If the incoming channel has previously had connected line information
1714                  * set on it (perhaps through the CONNECTED_LINE dialplan function) then
1715                  * seed the calllist's connected line information with this previously
1716                  * acquired info
1717                  */
1718                 if (chan->connected.id.number) {
1719                         ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1720                 }
1721                 ast_channel_unlock(chan);
1722
1723                 if (datastore)
1724                         dialed_interfaces = datastore->data;
1725                 else {
1726                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1727                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1728                                 chanlist_free(tmp);
1729                                 goto out;
1730                         }
1731
1732                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1733
1734                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1735                                 ast_datastore_free(datastore);
1736                                 chanlist_free(tmp);
1737                                 goto out;
1738                         }
1739
1740                         datastore->data = dialed_interfaces;
1741                         AST_LIST_HEAD_INIT(dialed_interfaces);
1742
1743                         ast_channel_lock(chan);
1744                         ast_channel_datastore_add(chan, datastore);
1745                         ast_channel_unlock(chan);
1746                 }
1747
1748                 AST_LIST_LOCK(dialed_interfaces);
1749                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1750                         if (!strcasecmp(di->interface, interface)) {
1751                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1752                                         di->interface);
1753                                 break;
1754                         }
1755                 }
1756                 AST_LIST_UNLOCK(dialed_interfaces);
1757
1758                 if (di) {
1759                         fulldial++;
1760                         chanlist_free(tmp);
1761                         continue;
1762                 }
1763
1764                 /* It is always ok to dial a Local interface.  We only keep track of
1765                  * which "real" interfaces have been dialed.  The Local channel will
1766                  * inherit this list so that if it ends up dialing a real interface,
1767                  * it won't call one that has already been called. */
1768                 if (strcasecmp(tech, "Local")) {
1769                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
1770                                 AST_LIST_UNLOCK(dialed_interfaces);
1771                                 chanlist_free(tmp);
1772                                 goto out;
1773                         }
1774                         strcpy(di->interface, interface);
1775
1776                         AST_LIST_LOCK(dialed_interfaces);
1777                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
1778                         AST_LIST_UNLOCK(dialed_interfaces);
1779                 }
1780
1781                 tc = ast_request(tech, chan->nativeformats, chan, numsubst, &cause);
1782                 if (!tc) {
1783                         /* If we can't, just go on to the next call */
1784                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1785                                 tech, cause, ast_cause2str(cause));
1786                         handle_cause(cause, &num);
1787                         if (!rest) /* we are on the last destination */
1788                                 chan->hangupcause = cause;
1789                         chanlist_free(tmp);
1790                         continue;
1791                 }
1792                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1793
1794                 ast_channel_lock(tc);
1795                 while (ast_channel_trylock(chan)) {
1796                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
1797                 }
1798                 /* Setup outgoing SDP to match incoming one */
1799                 if (!outgoing && !rest) {
1800                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
1801                 }
1802                 
1803                 /* Inherit specially named variables from parent channel */
1804                 ast_channel_inherit_variables(chan, tc);
1805                 ast_channel_datastore_inherit(chan, tc);
1806
1807                 tc->appl = "AppDial";
1808                 tc->data = "(Outgoing Line)";
1809                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
1810
1811                 /* If the new channel has no callerid, try to guess what it should be */
1812                 if (ast_strlen_zero(tc->cid.cid_num)) {
1813                         if (!ast_strlen_zero(chan->connected.id.number)) {
1814                                 ast_set_callerid(tc, chan->connected.id.number, chan->connected.id.name, chan->connected.ani);
1815                         } else if (!ast_strlen_zero(chan->cid.cid_dnid)) {
1816                                 ast_set_callerid(tc, chan->cid.cid_dnid, NULL, NULL);
1817                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
1818                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
1819                         }
1820                         ast_set_flag64(tmp, DIAL_NOCONNECTEDLINE);
1821                 }
1822                 
1823                 ast_connected_line_copy_from_caller(&tc->connected, &chan->cid);
1824
1825                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1826                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
1827
1828                 tc->cid.cid_tns = chan->cid.cid_tns;
1829
1830                 if (!ast_strlen_zero(chan->accountcode)) {
1831                         ast_string_field_set(tc, peeraccount, chan->accountcode);
1832                 }
1833                 tc->cdrflags = chan->cdrflags;
1834                 if (ast_strlen_zero(tc->musicclass))
1835                         ast_string_field_set(tc, musicclass, chan->musicclass);
1836
1837                 /* Pass ADSI CPE and transfer capability */
1838                 tc->adsicpe = chan->adsicpe;
1839                 tc->transfercapability = chan->transfercapability;
1840
1841                 /* If we have an outbound group, set this peer channel to it */
1842                 if (outbound_group)
1843                         ast_app_group_set_channel(tc, outbound_group);
1844                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
1845                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
1846                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1847
1848                 /* Check if we're forced by configuration */
1849                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
1850                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1851
1852
1853                 /* Inherit context and extension */
1854                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
1855                 if (!ast_strlen_zero(chan->macroexten))
1856                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1857                 else
1858                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1859
1860                 ast_channel_unlock(tc);
1861                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
1862
1863                 /* Save the info in cdr's that we called them */
1864                 if (chan->cdr)
1865                         ast_cdr_setdestchan(chan->cdr, tc->name);
1866
1867                 /* check the results of ast_call */
1868                 if (res) {
1869                         /* Again, keep going even if there's an error */
1870                         ast_debug(1, "ast call on peer returned %d\n", res);
1871                         ast_verb(3, "Couldn't call %s\n", numsubst);
1872                         if (tc->hangupcause) {
1873                                 chan->hangupcause = tc->hangupcause;
1874                         }
1875                         ast_channel_unlock(chan);
1876                         ast_hangup(tc);
1877                         tc = NULL;
1878                         chanlist_free(tmp);
1879                         continue;
1880                 } else {
1881                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
1882                         senddialevent(chan, tc, numsubst);
1883                         ast_verb(3, "Called %s\n", numsubst);
1884                         ast_channel_unlock(chan);
1885                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
1886                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
1887                         }
1888                 }
1889                 /* Put them in the list of outgoing thingies...  We're ready now.
1890                    XXX If we're forcibly removed, these outgoing calls won't get
1891                    hung up XXX */
1892                 ast_set_flag64(tmp, DIAL_STILLGOING);
1893                 tmp->chan = tc;
1894                 tmp->next = outgoing;
1895                 outgoing = tmp;
1896                 /* If this line is up, don't try anybody else */
1897                 if (outgoing->chan->_state == AST_STATE_UP)
1898                         break;
1899         }
1900         
1901         if (ast_strlen_zero(args.timeout)) {
1902                 to = -1;
1903         } else {
1904                 to = atoi(args.timeout);
1905                 if (to > 0)
1906                         to *= 1000;
1907                 else {
1908                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
1909                         to = -1;
1910                 }
1911         }
1912
1913         if (!outgoing) {
1914                 strcpy(pa.status, "CHANUNAVAIL");
1915                 if (fulldial == num_dialed) {
1916                         res = -1;
1917                         goto out;
1918                 }
1919         } else {
1920                 /* Our status will at least be NOANSWER */
1921                 strcpy(pa.status, "NOANSWER");
1922                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1923                         moh = 1;
1924                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1925                                 char *original_moh = ast_strdupa(chan->musicclass);
1926                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1927                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1928                                 ast_string_field_set(chan, musicclass, original_moh);
1929                         } else {
1930                                 ast_moh_start(chan, NULL, NULL);
1931                         }
1932                         ast_indicate(chan, AST_CONTROL_PROGRESS);
1933                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
1934                         ast_indicate(chan, AST_CONTROL_RINGING);
1935                         sentringing++;
1936                 }
1937         }
1938
1939         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result, dtmf_progress);
1940
1941         /* The ast_channel_datastore_remove() function could fail here if the
1942          * datastore was moved to another channel during a masquerade. If this is
1943          * the case, don't free the datastore here because later, when the channel
1944          * to which the datastore was moved hangs up, it will attempt to free this
1945          * datastore again, causing a crash
1946          */
1947         if (!ast_channel_datastore_remove(chan, datastore))
1948                 ast_datastore_free(datastore);
1949         if (!peer) {
1950                 if (result) {
1951                         res = result;
1952                 } else if (to) { /* Musta gotten hung up */
1953                         res = -1;
1954                 } else { /* Nobody answered, next please? */
1955                         res = 0;
1956                 }
1957
1958                 /* SIP, in particular, sends back this error code to indicate an
1959                  * overlap dialled number needs more digits. */
1960                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
1961                         res = AST_PBX_INCOMPLETE;
1962                 }
1963
1964                 /* almost done, although the 'else' block is 400 lines */
1965         } else {
1966                 const char *number;
1967
1968                 strcpy(pa.status, "ANSWER");
1969                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1970                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
1971                    we will always return with -1 so that it is hung up properly after the
1972                    conversation.  */
1973                 hanguptree(outgoing, peer, 1);
1974                 outgoing = NULL;
1975                 /* If appropriate, log that we have a destination channel */
1976                 if (chan->cdr)
1977                         ast_cdr_setdestchan(chan->cdr, peer->name);
1978                 if (peer->name)
1979                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
1980                 
1981                 ast_channel_lock(peer);
1982                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
1983                 if (!number)
1984                         number = numsubst;
1985                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
1986                 ast_channel_unlock(peer);
1987
1988                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
1989                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
1990                         ast_channel_sendurl( peer, args.url );
1991                 }
1992                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
1993                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
1994                                 res = 0;
1995                                 goto out;
1996                         }
1997                 }
1998                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
1999                         res = 0;
2000                 } else {
2001                         int digit = 0;
2002                         /* Start autoservice on the other chan */
2003                         res = ast_autoservice_start(chan);
2004                         /* Now Stream the File */
2005                         if (!res)
2006                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2007                         if (!res) {
2008                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
2009                         }
2010                         /* Ok, done. stop autoservice */
2011                         res = ast_autoservice_stop(chan);
2012                         if (digit > 0 && !res)
2013                                 res = ast_senddigit(chan, digit, 0);
2014                         else
2015                                 res = digit;
2016
2017                 }
2018
2019                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2020                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2021                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2022                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2023                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2024                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2025                         peer->priority = chan->priority + 2;
2026                         ast_pbx_start(peer);
2027                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2028                         if (continue_exec)
2029                                 *continue_exec = 1;
2030                         res = 0;
2031                         goto done;
2032                 }
2033
2034                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2035                         struct ast_app *theapp;
2036                         const char *macro_result;
2037
2038                         res = ast_autoservice_start(chan);
2039                         if (res) {
2040                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2041                                 res = -1;
2042                         }
2043
2044                         theapp = pbx_findapp("Macro");
2045
2046                         if (theapp && !res) { /* XXX why check res here ? */
2047                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2048                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2049                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2050
2051                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2052                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2053                                 ast_debug(1, "Macro exited with status %d\n", res);
2054                                 res = 0;
2055                         } else {
2056                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2057                                 res = -1;
2058                         }
2059
2060                         if (ast_autoservice_stop(chan) < 0) {
2061                                 res = -1;
2062                         }
2063
2064                         ast_channel_lock(peer);
2065
2066                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2067                                 char *macro_transfer_dest;
2068
2069                                 if (!strcasecmp(macro_result, "BUSY")) {
2070                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2071                                         ast_set_flag64(peerflags, OPT_GO_ON);
2072                                         res = -1;
2073                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2074                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2075                                         ast_set_flag64(peerflags, OPT_GO_ON);
2076                                         res = -1;
2077                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2078                                         /* hangup peer and keep chan alive assuming the macro has changed
2079                                            the context / exten / priority or perhaps
2080                                            the next priority in the current exten is desired.
2081                                         */
2082                                         ast_set_flag64(peerflags, OPT_GO_ON);
2083                                         res = -1;
2084                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2085                                         /* Hangup both ends unless the caller has the g flag */
2086                                         res = -1;
2087                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2088                                         res = -1;
2089                                         /* perform a transfer to a new extension */
2090                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2091                                                 replace_macro_delimiter(macro_transfer_dest);
2092                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2093                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2094                                         }
2095                                 }
2096                         }
2097
2098                         ast_channel_unlock(peer);
2099                 }
2100
2101                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2102                         struct ast_app *theapp;
2103                         const char *gosub_result;
2104                         char *gosub_args, *gosub_argstart;
2105                         int res9 = -1;
2106
2107                         res9 = ast_autoservice_start(chan);
2108                         if (res9) {
2109                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2110                                 res9 = -1;
2111                         }
2112
2113                         theapp = pbx_findapp("Gosub");
2114
2115                         if (theapp && !res9) {
2116                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2117
2118                                 /* Set where we came from */
2119                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2120                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2121                                 peer->priority = 0;
2122
2123                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2124                                 if (gosub_argstart) {
2125                                         *gosub_argstart = 0;
2126                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2127                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2128                                                 gosub_args = NULL;
2129                                         }
2130                                         *gosub_argstart = ',';
2131                                 } else {
2132                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2133                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2134                                                 gosub_args = NULL;
2135                                         }
2136                                 }
2137
2138                                 if (gosub_args) {
2139                                         res9 = pbx_exec(peer, theapp, gosub_args);
2140                                         if (!res9) {
2141                                                 struct ast_pbx_args args;
2142                                                 /* A struct initializer fails to compile for this case ... */
2143                                                 memset(&args, 0, sizeof(args));
2144                                                 args.no_hangup_chan = 1;
2145                                                 ast_pbx_run_args(peer, &args);
2146                                         }
2147                                         ast_free(gosub_args);
2148                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2149                                 } else {
2150                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2151                                 }
2152
2153                         } else if (!res9) {
2154                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2155                                 res9 = -1;
2156                         }
2157
2158                         if (ast_autoservice_stop(chan) < 0) {
2159                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2160                                 res9 = -1;
2161                         }
2162                         
2163                         ast_channel_lock(peer);
2164
2165                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2166                                 char *gosub_transfer_dest;
2167
2168                                 if (!strcasecmp(gosub_result, "BUSY")) {
2169                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2170                                         ast_set_flag64(peerflags, OPT_GO_ON);
2171                                         res9 = -1;
2172                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2173                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2174                                         ast_set_flag64(peerflags, OPT_GO_ON);
2175                                         res9 = -1;
2176                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2177                                         /* hangup peer and keep chan alive assuming the macro has changed
2178                                            the context / exten / priority or perhaps
2179                                            the next priority in the current exten is desired.
2180                                         */
2181                                         ast_set_flag64(peerflags, OPT_GO_ON);
2182                                         res9 = -1;
2183                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2184                                         /* Hangup both ends unless the caller has the g flag */
2185                                         res9 = -1;
2186                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2187                                         res9 = -1;
2188                                         /* perform a transfer to a new extension */
2189                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2190                                                 replace_macro_delimiter(gosub_transfer_dest);
2191                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
2192                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2193                                         }
2194                                 }
2195                         }
2196
2197                         ast_channel_unlock(peer);       
2198                 }
2199
2200                 if (!res) {
2201                         if (!ast_tvzero(calldurationlimit)) {
2202                                 struct timeval whentohangup = calldurationlimit;
2203                                 peer->whentohangup = ast_tvadd(ast_tvnow(), whentohangup);
2204                         }
2205                         if (!ast_strlen_zero(dtmfcalled)) {
2206                                 ast_verb(3, "Sending DTMF '%s' to the called party.\n", dtmfcalled);
2207                                 res = ast_dtmf_stream(peer, chan, dtmfcalled, 250, 0);
2208                         }
2209                         if (!ast_strlen_zero(dtmfcalling)) {
2210                                 ast_verb(3, "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
2211                                 res = ast_dtmf_stream(chan, peer, dtmfcalling, 250, 0);
2212                         }
2213                 }
2214
2215                 if (res) { /* some error */
2216                         res = -1;
2217                 } else {
2218                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
2219                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
2220                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
2221                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
2222                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
2223                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
2224                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
2225                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
2226                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
2227                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
2228                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR))
2229                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
2230                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
2231                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
2232                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
2233                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
2234                         if (ast_test_flag64(peerflags, OPT_CALLEE_MIXMONITOR))
2235                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMIXMON);
2236                         if (ast_test_flag64(peerflags, OPT_CALLER_MIXMONITOR))
2237                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMIXMON);
2238                         if (ast_test_flag64(peerflags, OPT_GO_ON))
2239                                 ast_set_flag(&(config.features_caller), AST_FEATURE_NO_H_EXTEN);
2240
2241                         config.end_bridge_callback = end_bridge_callback;
2242                         config.end_bridge_callback_data = chan;
2243                         config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
2244                         
2245                         if (moh) {
2246                                 moh = 0;
2247                                 ast_moh_stop(chan);
2248                         } else if (sentringing) {
2249                                 sentringing = 0;
2250                                 ast_indicate(chan, -1);
2251                         }
2252                         /* Be sure no generators are left on it */
2253                         ast_deactivate_generator(chan);
2254                         /* Make sure channels are compatible */
2255                         res = ast_channel_make_compatible(chan, peer);
2256                         if (res < 0) {
2257                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
2258                                 ast_hangup(peer);
2259                                 res = -1;
2260                                 goto done;
2261                         }
2262                         if (opermode) {
2263                                 struct oprmode oprmode;
2264
2265                                 oprmode.peer = peer;
2266                                 oprmode.mode = opermode;
2267
2268                                 ast_channel_setoption(chan, AST_OPTION_OPRMODE, &oprmode, sizeof(oprmode), 0);
2269                         }
2270                         res = ast_bridge_call(chan, peer, &config);
2271                 }
2272
2273                 strcpy(peer->context, chan->context);
2274
2275                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
2276                         int autoloopflag;
2277                         int found;
2278                         int res9;
2279                         
2280                         strcpy(peer->exten, "h");
2281                         peer->priority = 1;
2282                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
2283                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
2284
2285                         while ((res9 = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num, &found, 1)) == 0)
2286                                 peer->priority++;
2287
2288                         if (found && res9) {
2289                                 /* Something bad happened, or a hangup has been requested. */
2290                                 ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2291                                 ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2292                         }
2293                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
2294                 }
2295                 if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON)) {
2296                         if(!ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {
2297                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GO_ON]);
2298                                 ast_parseable_goto(peer, opt_args[OPT_ARG_CALLEE_GO_ON]);
2299                         } else { /* F() */
2300                                 int res;
2301                                 res = ast_goto_if_exists(peer, chan->context, chan->exten, (chan->priority) + 1); 
2302                                 if (res == AST_PBX_GOTO_FAILED) {
2303                                         ast_hangup(peer);
2304                                         goto out;
2305                                 }
2306                         }
2307                         ast_pbx_start(peer);
2308                 } else {
2309                         if (!ast_check_hangup(chan))
2310                                 chan->hangupcause = peer->hangupcause;
2311                         ast_hangup(peer);
2312                 }
2313         }
2314 out:
2315         if (moh) {
2316                 moh = 0;
2317                 ast_moh_stop(chan);
2318         } else if (sentringing) {
2319                 sentringing = 0;
2320                 ast_indicate(chan, -1);
2321         }
2322         ast_channel_early_bridge(chan, NULL);
2323         hanguptree(outgoing, NULL, 0); /* In this case, there's no answer anywhere */
2324         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2325         senddialendevent(chan, pa.status);
2326         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
2327         
2328         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_INCOMPLETE)) {
2329                 if (!ast_tvzero(calldurationlimit))
2330                         memset(&chan->whentohangup, 0, sizeof(chan->whentohangup));
2331                 res = 0;
2332         }
2333
2334 done:
2335         if (config.warning_sound) {
2336                 ast_free((char *)config.warning_sound);
2337         }
2338         if (config.end_sound) {
2339                 ast_free((char *)config.end_sound);
2340         }
2341         if (config.start_sound) {
2342                 ast_free((char *)config.start_sound);
2343         }
2344         return res;
2345 }
2346
2347 static int dial_exec(struct ast_channel *chan, const char *data)
2348 {
2349         struct ast_flags64 peerflags;
2350
2351         memset(&peerflags, 0, sizeof(peerflags));
2352
2353         return dial_exec_full(chan, data, &peerflags, NULL);
2354 }
2355
2356 static int retrydial_exec(struct ast_channel *chan, const char *data)
2357 {
2358         char *parse;
2359         const char *context = NULL;
2360         int sleepms = 0, loops = 0, res = -1;
2361         struct ast_flags64 peerflags = { 0, };
2362         AST_DECLARE_APP_ARGS(args,
2363                 AST_APP_ARG(announce);
2364                 AST_APP_ARG(sleep);
2365                 AST_APP_ARG(retries);
2366                 AST_APP_ARG(dialdata);
2367         );
2368
2369         if (ast_strlen_zero(data)) {
2370                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
2371                 return -1;
2372         }
2373
2374         parse = ast_strdupa(data);
2375         AST_STANDARD_APP_ARGS(args, parse);
2376
2377         if (!ast_strlen_zero(args.sleep) && (sleepms = atoi(args.sleep)))
2378                 sleepms *= 1000;
2379
2380         if (!ast_strlen_zero(args.retries)) {
2381                 loops = atoi(args.retries);
2382         }
2383
2384         if (!args.dialdata) {
2385                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
2386                 goto done;
2387         }
2388
2389         if (sleepms < 1000)
2390                 sleepms = 10000;
2391
2392         if (!loops)
2393                 loops = -1; /* run forever */
2394
2395         ast_channel_lock(chan);
2396         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
2397         context = !ast_strlen_zero(context) ? ast_strdupa(context) : NULL;
2398         ast_channel_unlock(chan);
2399
2400         res = 0;
2401         while (loops) {
2402                 int continue_exec;
2403
2404                 chan->data = "Retrying";
2405                 if (ast_test_flag(chan, AST_FLAG_MOH))
2406                         ast_moh_stop(chan);
2407
2408                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
2409                 if (continue_exec)
2410                         break;
2411
2412                 if (res == 0) {
2413                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
2414                                 if (!ast_strlen_zero(args.announce)) {
2415                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2416                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2417                                                         ast_waitstream(chan, AST_DIGIT_ANY);
2418                                         } else
2419                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2420                                 }
2421                                 if (!res && sleepms) {
2422                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2423                                                 ast_moh_start(chan, NULL, NULL);
2424                                         res = ast_waitfordigit(chan, sleepms);
2425                                 }
2426                         } else {
2427                                 if (!ast_strlen_zero(args.announce)) {
2428                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2429                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2430                                                         res = ast_waitstream(chan, "");
2431                                         } else
2432                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2433                                 }
2434                                 if (sleepms) {
2435                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2436                                                 ast_moh_start(chan, NULL, NULL);
2437                                         if (!res)
2438                                                 res = ast_waitfordigit(chan, sleepms);
2439                                 }
2440                         }
2441                 }
2442
2443                 if (res < 0 || res == AST_PBX_INCOMPLETE) {
2444                         break;
2445                 } else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
2446                         if (onedigit_goto(chan, context, (char) res, 1)) {
2447                                 res = 0;
2448                                 break;
2449                         }
2450                 }
2451                 loops--;
2452         }
2453         if (loops == 0)
2454                 res = 0;
2455         else if (res == 1)
2456                 res = 0;
2457
2458         if (ast_test_flag(chan, AST_FLAG_MOH))
2459                 ast_moh_stop(chan);
2460  done:
2461         return res;
2462 }
2463
2464 static int unload_module(void)
2465 {
2466         int res;
2467         struct ast_context *con;
2468
2469         res = ast_unregister_application(app);
2470         res |= ast_unregister_application(rapp);
2471
2472         if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
2473                 ast_context_remove_extension2(con, "s", 1, NULL, 0);
2474                 ast_context_destroy(con, "app_dial"); /* leave nothing behind */
2475         }
2476
2477         return res;
2478 }
2479
2480 static int load_module(void)
2481 {
2482         int res;
2483         struct ast_context *con;
2484
2485         con = ast_context_find_or_create(NULL, NULL, "app_dial_gosub_virtual_context", "app_dial");
2486         if (!con)
2487                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
2488         else
2489                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "NoOp", ast_strdup(""), ast_free_ptr, "app_dial");
2490
2491         res = ast_register_application_xml(app, dial_exec);
2492         res |= ast_register_application_xml(rapp, retrydial_exec);
2493
2494         return res;
2495 }
2496
2497 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");