The MeetmeJoin now has caller ID name and Caller ID number fields (like MeetMeLeave)
[asterisk/asterisk.git] / apps / app_meetme.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2007, Digium, Inc.
5  *
6  * Mark Spencer <markster@digium.com>
7  *
8  * SLA Implementation by:
9  * Russell Bryant <russell@digium.com>
10  *
11  * See http://www.asterisk.org for more information about
12  * the Asterisk project. Please do not directly contact
13  * any of the maintainers of this project for assistance;
14  * the project provides a web site, mailing lists and IRC
15  * channels for your use.
16  *
17  * This program is free software, distributed under the terms of
18  * the GNU General Public License Version 2. See the LICENSE file
19  * at the top of the source tree.
20  */
21
22 /*! \file
23  *
24  * \brief Meet me conference bridge and Shared Line Appearances
25  *
26  * \author Mark Spencer <markster@digium.com>
27  * \author (SLA) Russell Bryant <russell@digium.com>
28  * 
29  * \ingroup applications
30  */
31
32 /*** MODULEINFO
33         <depend>zaptel</depend>
34  ***/
35
36 #include "asterisk.h"
37
38 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
39
40 #include "asterisk/zapata.h"
41
42 #include "asterisk/lock.h"
43 #include "asterisk/file.h"
44 #include "asterisk/channel.h"
45 #include "asterisk/pbx.h"
46 #include "asterisk/module.h"
47 #include "asterisk/config.h"
48 #include "asterisk/app.h"
49 #include "asterisk/dsp.h"
50 #include "asterisk/musiconhold.h"
51 #include "asterisk/manager.h"
52 #include "asterisk/cli.h"
53 #include "asterisk/say.h"
54 #include "asterisk/utils.h"
55 #include "asterisk/translate.h"
56 #include "asterisk/ulaw.h"
57 #include "asterisk/astobj.h"
58 #include "asterisk/devicestate.h"
59 #include "asterisk/dial.h"
60 #include "asterisk/causes.h"
61 #include "asterisk/paths.h"
62
63 #include "enter.h"
64 #include "leave.h"
65
66 #define CONFIG_FILE_NAME "meetme.conf"
67 #define SLA_CONFIG_FILE  "sla.conf"
68
69 /*! each buffer is 20ms, so this is 640ms total */
70 #define DEFAULT_AUDIO_BUFFERS  32
71
72 /*! String format for scheduled conferences */
73 #define DATE_FORMAT "%Y-%m-%d %H:%M:%S"
74
75 enum {
76         ADMINFLAG_MUTED =     (1 << 1), /*!< User is muted */
77         ADMINFLAG_SELFMUTED = (1 << 2), /*!< User muted self */
78         ADMINFLAG_KICKME =    (1 << 3),  /*!< User has been kicked */
79         /*! User has requested to speak */
80         ADMINFLAG_T_REQUEST = (1 << 4),
81 };
82
83 #define MEETME_DELAYDETECTTALK     300
84 #define MEETME_DELAYDETECTENDTALK  1000
85
86 #define AST_FRAME_BITS  32
87
88 enum volume_action {
89         VOL_UP,
90         VOL_DOWN
91 };
92
93 enum entrance_sound {
94         ENTER,
95         LEAVE
96 };
97
98 enum recording_state {
99         MEETME_RECORD_OFF,
100         MEETME_RECORD_STARTED,
101         MEETME_RECORD_ACTIVE,
102         MEETME_RECORD_TERMINATE
103 };
104
105 #define CONF_SIZE  320
106
107 enum {
108         /*! user has admin access on the conference */
109         CONFFLAG_ADMIN = (1 << 0),
110         /*! If set the user can only receive audio from the conference */
111         CONFFLAG_MONITOR = (1 << 1),
112         /*! If set asterisk will exit conference when key defined in p() option is pressed */
113         CONFFLAG_KEYEXIT = (1 << 2),
114         /*! If set asterisk will provide a menu to the user when '*' is pressed */
115         CONFFLAG_STARMENU = (1 << 3),
116         /*! If set the use can only send audio to the conference */
117         CONFFLAG_TALKER = (1 << 4),
118         /*! If set there will be no enter or leave sounds */
119         CONFFLAG_QUIET = (1 << 5),
120         /*! If set, when user joins the conference, they will be told the number 
121          *  of users that are already in */
122         CONFFLAG_ANNOUNCEUSERCOUNT = (1 << 6),
123         /*! Set to run AGI Script in Background */
124         CONFFLAG_AGI = (1 << 7),
125         /*! Set to have music on hold when user is alone in conference */
126         CONFFLAG_MOH = (1 << 8),
127         /*! If set the MeetMe will return if all marked with this flag left */
128         CONFFLAG_MARKEDEXIT = (1 << 9),
129         /*! If set, the MeetMe will wait until a marked user enters */
130         CONFFLAG_WAITMARKED = (1 << 10),
131         /*! If set, the MeetMe will exit to the specified context */
132         CONFFLAG_EXIT_CONTEXT = (1 << 11),
133         /*! If set, the user will be marked */
134         CONFFLAG_MARKEDUSER = (1 << 12),
135         /*! If set, user will be ask record name on entry of conference */
136         CONFFLAG_INTROUSER = (1 << 13),
137         /*! If set, the MeetMe will be recorded */
138         CONFFLAG_RECORDCONF = (1<< 14),
139         /*! If set, the user will be monitored if the user is talking or not */
140         CONFFLAG_MONITORTALKER = (1 << 15),
141         CONFFLAG_DYNAMIC = (1 << 16),
142         CONFFLAG_DYNAMICPIN = (1 << 17),
143         CONFFLAG_EMPTY = (1 << 18),
144         CONFFLAG_EMPTYNOPIN = (1 << 19),
145         CONFFLAG_ALWAYSPROMPT = (1 << 20),
146         /*! If set, won't speak the extra prompt when the first person 
147          *  enters the conference */
148         CONFFLAG_NOONLYPERSON = (1 << 22),
149         /*! If set, user will be asked to record name on entry of conference 
150          *  without review */
151         CONFFLAG_INTROUSERNOREVIEW = (1 << 23),
152         /*! If set, the user will be initially self-muted */
153         CONFFLAG_STARTMUTED = (1 << 24),
154         /*! Pass DTMF through the conference */
155         CONFFLAG_PASS_DTMF = (1 << 25),
156         CONFFLAG_SLA_STATION = (1 << 26),
157         CONFFLAG_SLA_TRUNK = (1 << 27),
158         /*! If set, the user should continue in the dialplan if kicked out */
159         CONFFLAG_KICK_CONTINUE = (1 << 28),
160         CONFFLAG_DURATION_STOP = (1 << 29),
161         CONFFLAG_DURATION_LIMIT = (1 << 30),
162 };
163
164 enum {
165         OPT_ARG_WAITMARKED = 0,
166         OPT_ARG_EXITKEYS   = 1,
167         OPT_ARG_DURATION_STOP = 2,
168         OPT_ARG_DURATION_LIMIT = 3,
169         OPT_ARG_MOH_CLASS = 4,
170         OPT_ARG_ARRAY_SIZE = 5,
171 };
172
173 AST_APP_OPTIONS(meetme_opts, BEGIN_OPTIONS
174         AST_APP_OPTION('A', CONFFLAG_MARKEDUSER ),
175         AST_APP_OPTION('a', CONFFLAG_ADMIN ),
176         AST_APP_OPTION('b', CONFFLAG_AGI ),
177         AST_APP_OPTION('c', CONFFLAG_ANNOUNCEUSERCOUNT ),
178         AST_APP_OPTION('C', CONFFLAG_KICK_CONTINUE),
179         AST_APP_OPTION('D', CONFFLAG_DYNAMICPIN ),
180         AST_APP_OPTION('d', CONFFLAG_DYNAMIC ),
181         AST_APP_OPTION('E', CONFFLAG_EMPTYNOPIN ),
182         AST_APP_OPTION('e', CONFFLAG_EMPTY ),
183         AST_APP_OPTION('F', CONFFLAG_PASS_DTMF ),
184         AST_APP_OPTION('i', CONFFLAG_INTROUSER ),
185         AST_APP_OPTION('I', CONFFLAG_INTROUSERNOREVIEW ),
186         AST_APP_OPTION_ARG('M', CONFFLAG_MOH, OPT_ARG_MOH_CLASS ),
187         AST_APP_OPTION('m', CONFFLAG_STARTMUTED ),
188         AST_APP_OPTION('P', CONFFLAG_ALWAYSPROMPT ),
189         AST_APP_OPTION_ARG('p', CONFFLAG_KEYEXIT, OPT_ARG_EXITKEYS ),
190         AST_APP_OPTION('q', CONFFLAG_QUIET ),
191         AST_APP_OPTION('r', CONFFLAG_RECORDCONF ),
192         AST_APP_OPTION('s', CONFFLAG_STARMENU ),
193         AST_APP_OPTION('T', CONFFLAG_MONITORTALKER ),
194         AST_APP_OPTION('l', CONFFLAG_MONITOR ),
195         AST_APP_OPTION('t', CONFFLAG_TALKER ),
196         AST_APP_OPTION_ARG('w', CONFFLAG_WAITMARKED, OPT_ARG_WAITMARKED ),
197         AST_APP_OPTION('X', CONFFLAG_EXIT_CONTEXT ),
198         AST_APP_OPTION('x', CONFFLAG_MARKEDEXIT ),
199         AST_APP_OPTION('1', CONFFLAG_NOONLYPERSON ),
200         AST_APP_OPTION_ARG('S', CONFFLAG_DURATION_STOP, OPT_ARG_DURATION_STOP),
201         AST_APP_OPTION_ARG('L', CONFFLAG_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
202 END_OPTIONS );
203
204 static const char *app = "MeetMe";
205 static const char *app2 = "MeetMeCount";
206 static const char *app3 = "MeetMeAdmin";
207 static const char *app4 = "MeetMeChannelAdmin";
208 static const char *slastation_app = "SLAStation";
209 static const char *slatrunk_app = "SLATrunk";
210
211 static const char *synopsis = "MeetMe conference bridge";
212 static const char *synopsis2 = "MeetMe participant count";
213 static const char *synopsis3 = "MeetMe conference Administration";
214 static const char *synopsis4 = "MeetMe conference Administration (channel specific)";
215 static const char *slastation_synopsis = "Shared Line Appearance Station";
216 static const char *slatrunk_synopsis = "Shared Line Appearance Trunk";
217
218 /* Lookup RealTime conferences based on confno and current time */
219 static int rt_schedule;
220 static int fuzzystart;
221 static int earlyalert;
222 static int endalert;
223
224 /* Log participant count to the RealTime backend */
225 static int rt_log_members;
226
227 static const char *descrip =
228 "  MeetMe([confno][,[options][,pin]]): Enters the user into a specified MeetMe\n"
229 "conference.  If the conference number is omitted, the user will be prompted\n"
230 "to enter one.  User can exit the conference by hangup, or if the 'p' option\n"
231 "is specified, by pressing '#'.\n"
232 "Please note: The Zaptel kernel modules and at least one hardware driver (or ztdummy)\n"
233 "             must be present for conferencing to operate properly. In addition, the chan_zap\n"
234 "             channel driver must be loaded for the 'i' and 'r' options to operate at all.\n\n"
235 "The option string may contain zero or more of the following characters:\n"
236 "      'a' -- set admin mode\n"
237 "      'A' -- set marked mode\n"
238 "      'b' -- run AGI script specified in ${MEETME_AGI_BACKGROUND}\n"
239 "             Default: conf-background.agi  (Note: This does not work with\n"
240 "             non-Zap channels in the same conference)\n"
241 "      'c' -- announce user(s) count on joining a conference\n"
242 "      'C' -- continue in dialplan when kicked out of conference\n"
243 "      'd' -- dynamically add conference\n"
244 "      'D' -- dynamically add conference, prompting for a PIN\n"
245 "      'e' -- select an empty conference\n"
246 "      'E' -- select an empty pinless conference\n"
247 "      'F' -- Pass DTMF through the conference.\n"
248 "      'i' -- announce user join/leave with review\n"
249 "      'I' -- announce user join/leave without review\n"
250 "      'l' -- set listen only mode (Listen only, no talking)\n"
251 "      'm' -- set initially muted\n"
252 "      'M[(<class>]\n"
253 "        ' -- enable music on hold when the conference has a single caller.\n"
254 "             Optionally, specify a musiconhold class to use.  If one is not\n"
255 "             provided, it will use the channel's currently set music class,\n"
256 "             or \"default\".\n"
257 "      'o' -- set talker optimization - treats talkers who aren't speaking as\n"
258 "             being muted, meaning (a) No encode is done on transmission and\n"
259 "             (b) Received audio that is not registered as talking is omitted\n"
260 "             causing no buildup in background noise\n"
261 "      'p[(<keys>)]'\n"
262 "          -- allow user to exit the conference by pressing '#' (default)\n"
263 "             or any of the defined keys. If keys contain '*' this will override\n"
264 "             option 's'. The key used is set to channel variable MEETME_EXIT_KEY.\n"
265 "      'P' -- always prompt for the pin even if it is specified\n"
266 "      'q' -- quiet mode (don't play enter/leave sounds)\n"
267 "      'r' -- Record conference (records as ${MEETME_RECORDINGFILE}\n"
268 "             using format ${MEETME_RECORDINGFORMAT}). Default filename is\n"
269 "             meetme-conf-rec-${CONFNO}-${UNIQUEID} and the default format is\n"
270 "             wav.\n"
271 "      's' -- Present menu (user or admin) when '*' is received ('send' to menu)\n"
272 "      't' -- set talk only mode. (Talk only, no listening)\n"
273 "      'T' -- set talker detection (sent to manager interface and meetme list)\n"
274 "      'w[(<secs>)]'\n"
275 "          -- wait until the marked user enters the conference\n"
276 "      'x' -- close the conference when last marked user exits\n"
277 "      'X' -- allow user to exit the conference by entering a valid single\n"
278 "             digit extension ${MEETME_EXIT_CONTEXT} or the current context\n"
279 "             if that variable is not defined.\n"
280 "      '1' -- do not play message when first person enters\n"
281 "      'S(x)' -- Kick the user 'x' seconds *after* he entered into the conference.\n"
282 "      'L(x[:y][:z])' - Limit the conference to 'x' ms. Play a warning when 'y' ms are\n"
283 "             left. Repeat the warning every 'z' ms. The following special\n"
284 "             variables can be used with this option:\n"
285 "              * CONF_LIMIT_TIMEOUT_FILE       File to play when time is up.\n"
286 "              * CONF_LIMIT_WARNING_FILE       File to play as warning if 'y' is defined.\n"
287 "                                              The default is to say the time remaining.\n"
288 "";
289
290 static const char *descrip2 =
291 "  MeetMeCount(confno[,var]): Plays back the number of users in the specified\n"
292 "MeetMe conference. If var is specified, playback will be skipped and the value\n"
293 "will be returned in the variable. Upon app completion, MeetMeCount will hangup\n"
294 "the channel, unless priority n+1 exists, in which case priority progress will\n"
295 "continue.\n"
296 "A ZAPTEL INTERFACE MUST BE INSTALLED FOR CONFERENCING FUNCTIONALITY.\n";
297
298 static const char *descrip3 = 
299 "  MeetMeAdmin(confno,command[,user]): Run admin command for conference\n"
300 "      'e' -- Eject last user that joined\n"
301 "      'k' -- Kick one user out of conference\n"
302 "      'K' -- Kick all users out of conference\n"
303 "      'l' -- Unlock conference\n"
304 "      'L' -- Lock conference\n"
305 "      'm' -- Unmute one user\n"
306 "      'M' -- Mute one user\n"
307 "      'n' -- Unmute all users in the conference\n"
308 "      'N' -- Mute all non-admin users in the conference\n"
309 "      'r' -- Reset one user's volume settings\n"
310 "      'R' -- Reset all users volume settings\n"
311 "      's' -- Lower entire conference speaking volume\n"
312 "      'S' -- Raise entire conference speaking volume\n"
313 "      't' -- Lower one user's talk volume\n"
314 "      'T' -- Raise one user's talk volume\n"
315 "      'u' -- Lower one user's listen volume\n"
316 "      'U' -- Raise one user's listen volume\n"
317 "      'v' -- Lower entire conference listening volume\n"
318 "      'V' -- Raise entire conference listening volume\n"
319 "";
320
321 static const char *descrip4 = 
322 "  MeetMeChannelAdmin(channel,command): Run admin command for a specific\n"
323 "channel in any coference.\n"
324 "      'k' -- Kick the specified user out of the conference he is in\n"
325 "      'm' -- Unmute the specified user\n"
326 "      'M' -- Mute the specified user\n"
327 "";
328
329 static const char *slastation_desc =
330 "  SLAStation(<station name>):\n"
331 "This application should be executed by an SLA station.  The argument depends\n"
332 "on how the call was initiated.  If the phone was just taken off hook, then\n"
333 "the argument \"station\" should be just the station name.  If the call was\n"
334 "initiated by pressing a line key, then the station name should be preceded\n"
335 "by an underscore and the trunk name associated with that line button.\n"
336 "For example: \"station1_line1\"."
337 "  On exit, this application will set the variable SLASTATION_STATUS to\n"
338 "one of the following values:\n"
339 "    FAILURE | CONGESTION | SUCCESS\n"
340 "";
341
342 static const char *slatrunk_desc =
343 "  SLATrunk(<trunk name>[,options]):\n"
344 "This application should be executed by an SLA trunk on an inbound call.\n"
345 "The channel calling this application should correspond to the SLA trunk\n"
346 "with the name \"trunk\" that is being passed as an argument.\n"
347 "  On exit, this application will set the variable SLATRUNK_STATUS to\n"
348 "one of the following values:\n"
349 "   FAILURE | SUCCESS | UNANSWERED | RINGTIMEOUT\n"
350 "  The available options are:\n"
351 "    M[(<class>)]          - Play back the specified MOH class instead of ringing\n"
352 "";
353
354 #define MAX_CONFNUM 80
355 #define MAX_PIN     80
356
357 /*! \brief The MeetMe Conference object */
358 struct ast_conference {
359         ast_mutex_t playlock;                   /*!< Conference specific lock (players) */
360         ast_mutex_t listenlock;                 /*!< Conference specific lock (listeners) */
361         char confno[MAX_CONFNUM];               /*!< Conference */
362         struct ast_channel *chan;               /*!< Announcements channel */
363         struct ast_channel *lchan;              /*!< Listen/Record channel */
364         int fd;                                 /*!< Announcements fd */
365         int zapconf;                            /*!< Zaptel Conf # */
366         int users;                              /*!< Number of active users */
367         int markedusers;                        /*!< Number of marked users */
368         int maxusers;                           /*!< Participant limit if scheduled */
369         int endalert;                           /*!< When to play conf ending message */
370         time_t start;                           /*!< Start time (s) */
371         int refcount;                           /*!< reference count of usage */
372         enum recording_state recording:2;       /*!< recording status */
373         unsigned int isdynamic:1;               /*!< Created on the fly? */
374         unsigned int locked:1;                  /*!< Is the conference locked? */
375         pthread_t recordthread;                 /*!< thread for recording */
376         ast_mutex_t recordthreadlock;           /*!< control threads trying to start recordthread */
377         pthread_attr_t attr;                    /*!< thread attribute */
378         const char *recordingfilename;          /*!< Filename to record the Conference into */
379         const char *recordingformat;            /*!< Format to record the Conference in */
380         char pin[MAX_PIN];                      /*!< If protected by a PIN */
381         char pinadmin[MAX_PIN];                 /*!< If protected by a admin PIN */
382         char uniqueid[32];
383         char endtime[19];                       /*!< When to end the conf if scheduled */
384         struct ast_frame *transframe[32];
385         struct ast_frame *origframe;
386         struct ast_trans_pvt *transpath[32];
387         AST_LIST_HEAD_NOLOCK(, ast_conf_user) userlist;
388         AST_LIST_ENTRY(ast_conference) list;
389 };
390
391 static AST_LIST_HEAD_STATIC(confs, ast_conference);
392
393 static unsigned int conf_map[1024] = {0, };
394
395 struct volume {
396         int desired;                            /*!< Desired volume adjustment */
397         int actual;                             /*!< Actual volume adjustment (for channels that can't adjust) */
398 };
399
400 /*! \brief The MeetMe User object */
401 struct ast_conf_user {
402         int user_no;                            /*!< User Number */
403         int userflags;                          /*!< Flags as set in the conference */
404         int adminflags;                         /*!< Flags set by the Admin */
405         struct ast_channel *chan;               /*!< Connected channel */
406         int talking;                            /*!< Is user talking */
407         int zapchannel;                         /*!< Is a Zaptel channel */
408         char usrvalue[50];                      /*!< Custom User Value */
409         char namerecloc[PATH_MAX];                              /*!< Name Recorded file Location */
410         time_t jointime;                        /*!< Time the user joined the conference */
411         time_t kicktime;                        /*!< Time the user will be kicked from the conference */
412         struct timeval start_time;              /*!< Time the user entered into the conference */
413         long timelimit;                         /*!< Time limit for the user to be in the conference L(x:y:z) */
414         long play_warning;                      /*!< Play a warning when 'y' ms are left */
415         long warning_freq;                      /*!< Repeat the warning every 'z' ms */
416         const char *warning_sound;              /*!< File to play as warning if 'y' is defined */
417         const char *end_sound;                  /*!< File to play when time is up. */
418         struct volume talk;
419         struct volume listen;
420         AST_LIST_ENTRY(ast_conf_user) list;
421 };
422
423 enum sla_which_trunk_refs {
424         ALL_TRUNK_REFS,
425         INACTIVE_TRUNK_REFS,
426 };
427
428 enum sla_trunk_state {
429         SLA_TRUNK_STATE_IDLE,
430         SLA_TRUNK_STATE_RINGING,
431         SLA_TRUNK_STATE_UP,
432         SLA_TRUNK_STATE_ONHOLD,
433         SLA_TRUNK_STATE_ONHOLD_BYME,
434 };
435
436 enum sla_hold_access {
437         /*! This means that any station can put it on hold, and any station
438          * can retrieve the call from hold. */
439         SLA_HOLD_OPEN,
440         /*! This means that only the station that put the call on hold may
441          * retrieve it from hold. */
442         SLA_HOLD_PRIVATE,
443 };
444
445 struct sla_trunk_ref;
446
447 struct sla_station {
448         AST_RWLIST_ENTRY(sla_station) entry;
449         AST_DECLARE_STRING_FIELDS(
450                 AST_STRING_FIELD(name); 
451                 AST_STRING_FIELD(device);       
452                 AST_STRING_FIELD(autocontext);  
453         );
454         AST_LIST_HEAD_NOLOCK(, sla_trunk_ref) trunks;
455         struct ast_dial *dial;
456         /*! Ring timeout for this station, for any trunk.  If a ring timeout
457          *  is set for a specific trunk on this station, that will take
458          *  priority over this value. */
459         unsigned int ring_timeout;
460         /*! Ring delay for this station, for any trunk.  If a ring delay
461          *  is set for a specific trunk on this station, that will take
462          *  priority over this value. */
463         unsigned int ring_delay;
464         /*! This option uses the values in the sla_hold_access enum and sets the
465          * access control type for hold on this station. */
466         unsigned int hold_access:1;
467         /*! Use count for inside sla_station_exec */
468         unsigned int ref_count;
469 };
470
471 struct sla_station_ref {
472         AST_LIST_ENTRY(sla_station_ref) entry;
473         struct sla_station *station;
474 };
475
476 struct sla_trunk {
477         AST_RWLIST_ENTRY(sla_trunk) entry;
478         AST_DECLARE_STRING_FIELDS(
479                 AST_STRING_FIELD(name);
480                 AST_STRING_FIELD(device);
481                 AST_STRING_FIELD(autocontext);  
482         );
483         AST_LIST_HEAD_NOLOCK(, sla_station_ref) stations;
484         /*! Number of stations that use this trunk */
485         unsigned int num_stations;
486         /*! Number of stations currently on a call with this trunk */
487         unsigned int active_stations;
488         /*! Number of stations that have this trunk on hold. */
489         unsigned int hold_stations;
490         struct ast_channel *chan;
491         unsigned int ring_timeout;
492         /*! If set to 1, no station will be able to join an active call with
493          *  this trunk. */
494         unsigned int barge_disabled:1;
495         /*! This option uses the values in the sla_hold_access enum and sets the
496          * access control type for hold on this trunk. */
497         unsigned int hold_access:1;
498         /*! Whether this trunk is currently on hold, meaning that once a station
499          *  connects to it, the trunk channel needs to have UNHOLD indicated to it. */
500         unsigned int on_hold:1;
501         /*! Use count for inside sla_trunk_exec */
502         unsigned int ref_count;
503 };
504
505 struct sla_trunk_ref {
506         AST_LIST_ENTRY(sla_trunk_ref) entry;
507         struct sla_trunk *trunk;
508         enum sla_trunk_state state;
509         struct ast_channel *chan;
510         /*! Ring timeout to use when this trunk is ringing on this specific
511          *  station.  This takes higher priority than a ring timeout set at
512          *  the station level. */
513         unsigned int ring_timeout;
514         /*! Ring delay to use when this trunk is ringing on this specific
515          *  station.  This takes higher priority than a ring delay set at
516          *  the station level. */
517         unsigned int ring_delay;
518 };
519
520 static AST_RWLIST_HEAD_STATIC(sla_stations, sla_station);
521 static AST_RWLIST_HEAD_STATIC(sla_trunks, sla_trunk);
522
523 static const char sla_registrar[] = "SLA";
524
525 /*! \brief Event types that can be queued up for the SLA thread */
526 enum sla_event_type {
527         /*! A station has put the call on hold */
528         SLA_EVENT_HOLD,
529         /*! The state of a dial has changed */
530         SLA_EVENT_DIAL_STATE,
531         /*! The state of a ringing trunk has changed */
532         SLA_EVENT_RINGING_TRUNK,
533         /*! A reload of configuration has been requested */
534         SLA_EVENT_RELOAD,
535         /*! Poke the SLA thread so it can check if it can perform a reload */
536         SLA_EVENT_CHECK_RELOAD,
537 };
538
539 struct sla_event {
540         enum sla_event_type type;
541         struct sla_station *station;
542         struct sla_trunk_ref *trunk_ref;
543         AST_LIST_ENTRY(sla_event) entry;
544 };
545
546 /*! \brief A station that failed to be dialed 
547  * \note Only used by the SLA thread. */
548 struct sla_failed_station {
549         struct sla_station *station;
550         struct timeval last_try;
551         AST_LIST_ENTRY(sla_failed_station) entry;
552 };
553
554 /*! \brief A trunk that is ringing */
555 struct sla_ringing_trunk {
556         struct sla_trunk *trunk;
557         /*! The time that this trunk started ringing */
558         struct timeval ring_begin;
559         AST_LIST_HEAD_NOLOCK(, sla_station_ref) timed_out_stations;
560         AST_LIST_ENTRY(sla_ringing_trunk) entry;
561 };
562
563 enum sla_station_hangup {
564         SLA_STATION_HANGUP_NORMAL,
565         SLA_STATION_HANGUP_TIMEOUT,
566 };
567
568 /*! \brief A station that is ringing */
569 struct sla_ringing_station {
570         struct sla_station *station;
571         /*! The time that this station started ringing */
572         struct timeval ring_begin;
573         AST_LIST_ENTRY(sla_ringing_station) entry;
574 };
575
576 /*!
577  * \brief A structure for data used by the sla thread
578  */
579 static struct {
580         /*! The SLA thread ID */
581         pthread_t thread;
582         ast_cond_t cond;
583         ast_mutex_t lock;
584         AST_LIST_HEAD_NOLOCK(, sla_ringing_trunk) ringing_trunks;
585         AST_LIST_HEAD_NOLOCK(, sla_ringing_station) ringing_stations;
586         AST_LIST_HEAD_NOLOCK(, sla_failed_station) failed_stations;
587         AST_LIST_HEAD_NOLOCK(, sla_event) event_q;
588         unsigned int stop:1;
589         /*! Attempt to handle CallerID, even though it is known not to work
590          *  properly in some situations. */
591         unsigned int attempt_callerid:1;
592         /*! A reload has been requested */
593         unsigned int reload:1;
594 } sla = {
595         .thread = AST_PTHREADT_NULL,
596 };
597
598 /*! The number of audio buffers to be allocated on pseudo channels
599  *  when in a conference */
600 static int audio_buffers;
601
602 /*! Map 'volume' levels from -5 through +5 into
603  *  decibel (dB) settings for channel drivers
604  *  Note: these are not a straight linear-to-dB
605  *  conversion... the numbers have been modified
606  *  to give the user a better level of adjustability
607  */
608 static char const gain_map[] = {
609         -15,
610         -13,
611         -10,
612         -6,
613         0,
614         0,
615         0,
616         6,
617         10,
618         13,
619         15,
620 };
621
622
623 static int admin_exec(struct ast_channel *chan, void *data);
624 static void *recordthread(void *args);
625
626 static char *istalking(int x)
627 {
628         if (x > 0)
629                 return "(talking)";
630         else if (x < 0)
631                 return "(unmonitored)";
632         else 
633                 return "(not talking)";
634 }
635
636 static int careful_write(int fd, unsigned char *data, int len, int block)
637 {
638         int res;
639         int x;
640
641         while (len) {
642                 if (block) {
643                         x = ZT_IOMUX_WRITE | ZT_IOMUX_SIGEVENT;
644                         res = ioctl(fd, ZT_IOMUX, &x);
645                 } else
646                         res = 0;
647                 if (res >= 0)
648                         res = write(fd, data, len);
649                 if (res < 1) {
650                         if (errno != EAGAIN) {
651                                 ast_log(LOG_WARNING, "Failed to write audio data to conference: %s\n", strerror(errno));
652                                 return -1;
653                         } else
654                                 return 0;
655                 }
656                 len -= res;
657                 data += res;
658         }
659
660         return 0;
661 }
662
663 static int set_talk_volume(struct ast_conf_user *user, int volume)
664 {
665         char gain_adjust;
666
667         /* attempt to make the adjustment in the channel driver;
668            if successful, don't adjust in the frame reading routine
669         */
670         gain_adjust = gain_map[volume + 5];
671
672         return ast_channel_setoption(user->chan, AST_OPTION_RXGAIN, &gain_adjust, sizeof(gain_adjust), 0);
673 }
674
675 static int set_listen_volume(struct ast_conf_user *user, int volume)
676 {
677         char gain_adjust;
678
679         /* attempt to make the adjustment in the channel driver;
680            if successful, don't adjust in the frame reading routine
681         */
682         gain_adjust = gain_map[volume + 5];
683
684         return ast_channel_setoption(user->chan, AST_OPTION_TXGAIN, &gain_adjust, sizeof(gain_adjust), 0);
685 }
686
687 static void tweak_volume(struct volume *vol, enum volume_action action)
688 {
689         switch (action) {
690         case VOL_UP:
691                 switch (vol->desired) { 
692                 case 5:
693                         break;
694                 case 0:
695                         vol->desired = 2;
696                         break;
697                 case -2:
698                         vol->desired = 0;
699                         break;
700                 default:
701                         vol->desired++;
702                         break;
703                 }
704                 break;
705         case VOL_DOWN:
706                 switch (vol->desired) {
707                 case -5:
708                         break;
709                 case 2:
710                         vol->desired = 0;
711                         break;
712                 case 0:
713                         vol->desired = -2;
714                         break;
715                 default:
716                         vol->desired--;
717                         break;
718                 }
719         }
720 }
721
722 static void tweak_talk_volume(struct ast_conf_user *user, enum volume_action action)
723 {
724         tweak_volume(&user->talk, action);
725         /* attempt to make the adjustment in the channel driver;
726            if successful, don't adjust in the frame reading routine
727         */
728         if (!set_talk_volume(user, user->talk.desired))
729                 user->talk.actual = 0;
730         else
731                 user->talk.actual = user->talk.desired;
732 }
733
734 static void tweak_listen_volume(struct ast_conf_user *user, enum volume_action action)
735 {
736         tweak_volume(&user->listen, action);
737         /* attempt to make the adjustment in the channel driver;
738            if successful, don't adjust in the frame reading routine
739         */
740         if (!set_listen_volume(user, user->listen.desired))
741                 user->listen.actual = 0;
742         else
743                 user->listen.actual = user->listen.desired;
744 }
745
746 static void reset_volumes(struct ast_conf_user *user)
747 {
748         signed char zero_volume = 0;
749
750         ast_channel_setoption(user->chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
751         ast_channel_setoption(user->chan, AST_OPTION_RXGAIN, &zero_volume, sizeof(zero_volume), 0);
752 }
753
754 static void conf_play(struct ast_channel *chan, struct ast_conference *conf, enum entrance_sound sound)
755 {
756         unsigned char *data;
757         int len;
758         int res = -1;
759
760         if (!ast_check_hangup(chan))
761                 res = ast_autoservice_start(chan);
762
763         AST_LIST_LOCK(&confs);
764
765         switch(sound) {
766         case ENTER:
767                 data = enter;
768                 len = sizeof(enter);
769                 break;
770         case LEAVE:
771                 data = leave;
772                 len = sizeof(leave);
773                 break;
774         default:
775                 data = NULL;
776                 len = 0;
777         }
778         if (data) {
779                 careful_write(conf->fd, data, len, 1);
780         }
781
782         AST_LIST_UNLOCK(&confs);
783
784         if (!res) 
785                 ast_autoservice_stop(chan);
786 }
787
788 /*!
789  * \brief Find or create a conference
790  *
791  * \param confno The conference name/number
792  * \param pin The regular user pin
793  * \param pinadmin The admin pin
794  * \param make Make the conf if it doesn't exist
795  * \param dynamic Mark the newly created conference as dynamic
796  * \param refcount How many references to mark on the conference
797  * \param chan The asterisk channel
798  *
799  * \return A pointer to the conference struct, or NULL if it wasn't found and
800  *         make or dynamic were not set.
801  */
802 static struct ast_conference *build_conf(char *confno, char *pin, char *pinadmin, int make, int dynamic, int refcount, const struct ast_channel *chan)
803 {
804         struct ast_conference *cnf;
805         struct zt_confinfo ztc = { 0, };
806         int confno_int = 0;
807
808         AST_LIST_LOCK(&confs);
809
810         AST_LIST_TRAVERSE(&confs, cnf, list) {
811                 if (!strcmp(confno, cnf->confno)) 
812                         break;
813         }
814
815         if (cnf || (!make && !dynamic))
816                 goto cnfout;
817
818         /* Make a new one */
819         if (!(cnf = ast_calloc(1, sizeof(*cnf))))
820                 goto cnfout;
821
822         ast_mutex_init(&cnf->playlock);
823         ast_mutex_init(&cnf->listenlock);
824         cnf->recordthread = AST_PTHREADT_NULL;
825         ast_mutex_init(&cnf->recordthreadlock);
826         ast_copy_string(cnf->confno, confno, sizeof(cnf->confno));
827         ast_copy_string(cnf->pin, pin, sizeof(cnf->pin));
828         ast_copy_string(cnf->pinadmin, pinadmin, sizeof(cnf->pinadmin));
829         ast_copy_string(cnf->uniqueid, chan->uniqueid, sizeof(cnf->uniqueid));
830
831         /* Setup a new zap conference */
832         ztc.confno = -1;
833         ztc.confmode = ZT_CONF_CONFANN | ZT_CONF_CONFANNMON;
834         cnf->fd = open("/dev/zap/pseudo", O_RDWR);
835         if (cnf->fd < 0 || ioctl(cnf->fd, ZT_SETCONF, &ztc)) {
836                 ast_log(LOG_WARNING, "Unable to open pseudo device\n");
837                 if (cnf->fd >= 0)
838                         close(cnf->fd);
839                 ast_free(cnf);
840                 cnf = NULL;
841                 goto cnfout;
842         }
843
844         cnf->zapconf = ztc.confno;
845
846         /* Setup a new channel for playback of audio files */
847         cnf->chan = ast_request("zap", AST_FORMAT_SLINEAR, "pseudo", NULL);
848         if (cnf->chan) {
849                 ast_set_read_format(cnf->chan, AST_FORMAT_SLINEAR);
850                 ast_set_write_format(cnf->chan, AST_FORMAT_SLINEAR);
851                 ztc.chan = 0;
852                 ztc.confno = cnf->zapconf;
853                 ztc.confmode = ZT_CONF_CONFANN | ZT_CONF_CONFANNMON;
854                 if (ioctl(cnf->chan->fds[0], ZT_SETCONF, &ztc)) {
855                         ast_log(LOG_WARNING, "Error setting conference\n");
856                         if (cnf->chan)
857                                 ast_hangup(cnf->chan);
858                         else
859                                 close(cnf->fd);
860
861                         ast_free(cnf);
862                         cnf = NULL;
863                         goto cnfout;
864                 }
865         }
866
867         /* Fill the conference struct */
868         cnf->start = time(NULL);
869         cnf->maxusers = 0x7fffffff;
870         cnf->isdynamic = dynamic ? 1 : 0;
871         ast_verb(3, "Created MeetMe conference %d for conference '%s'\n", cnf->zapconf, cnf->confno);
872         AST_LIST_INSERT_HEAD(&confs, cnf, list);
873
874         /* Reserve conference number in map */
875         if ((sscanf(cnf->confno, "%d", &confno_int) == 1) && (confno_int >= 0 && confno_int < 1024))
876                 conf_map[confno_int] = 1;
877         
878 cnfout:
879         if (cnf)
880                 ast_atomic_fetchadd_int(&cnf->refcount, refcount);
881
882         AST_LIST_UNLOCK(&confs);
883
884         return cnf;
885 }
886
887
888 static char *complete_meetmecmd(const char *line, const char *word, int pos, int state)
889 {
890         static char *cmds[] = {"concise", "lock", "unlock", "mute", "unmute", "kick", "list", NULL};
891
892         int len = strlen(word);
893         int which = 0;
894         struct ast_conference *cnf = NULL;
895         struct ast_conf_user *usr = NULL;
896         char *confno = NULL;
897         char usrno[50] = "";
898         char *myline, *ret = NULL;
899         
900         if (pos == 1) {         /* Command */
901                 return ast_cli_complete(word, cmds, state);
902         } else if (pos == 2) {  /* Conference Number */
903                 AST_LIST_LOCK(&confs);
904                 AST_LIST_TRAVERSE(&confs, cnf, list) {
905                         if (!strncasecmp(word, cnf->confno, len) && ++which > state) {
906                                 ret = cnf->confno;
907                                 break;
908                         }
909                 }
910                 ret = ast_strdup(ret); /* dup before releasing the lock */
911                 AST_LIST_UNLOCK(&confs);
912                 return ret;
913         } else if (pos == 3) {
914                 /* User Number || Conf Command option*/
915                 if (strstr(line, "mute") || strstr(line, "kick")) {
916                         if (state == 0 && (strstr(line, "kick") || strstr(line,"mute")) && !strncasecmp(word, "all", len))
917                                 return ast_strdup("all");
918                         which++;
919                         AST_LIST_LOCK(&confs);
920
921                         /* TODO: Find the conf number from the cmdline (ignore spaces) <- test this and make it fail-safe! */
922                         myline = ast_strdupa(line);
923                         if (strsep(&myline, " ") && strsep(&myline, " ") && !confno) {
924                                 while((confno = strsep(&myline, " ")) && (strcmp(confno, " ") == 0))
925                                         ;
926                         }
927                         
928                         AST_LIST_TRAVERSE(&confs, cnf, list) {
929                                 if (!strcmp(confno, cnf->confno))
930                                     break;
931                         }
932
933                         if (cnf) {
934                                 /* Search for the user */
935                                 AST_LIST_TRAVERSE(&cnf->userlist, usr, list) {
936                                         snprintf(usrno, sizeof(usrno), "%d", usr->user_no);
937                                         if (!strncasecmp(word, usrno, len) && ++which > state)
938                                                 break;
939                                 }
940                         }
941                         AST_LIST_UNLOCK(&confs);
942                         return usr ? ast_strdup(usrno) : NULL;
943                 } else if ( strstr(line, "list") && ( 0 == state ) )
944                         return ast_strdup("concise");
945         }
946
947         return NULL;
948 }
949
950 static char *meetme_cmd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
951 {
952         /* Process the command */
953         struct ast_conference *cnf;
954         struct ast_conf_user *user;
955         int hr, min, sec;
956         int i = 0, total = 0;
957         time_t now;
958         char *header_format = "%-14s %-14s %-10s %-8s  %-8s  %-6s\n";
959         char *data_format = "%-12.12s   %4.4d         %4.4s       %02d:%02d:%02d  %-8s  %-6s\n";
960         char cmdline[1024] = "";
961
962         switch (cmd) {
963         case CLI_INIT:
964                 e->command = "meetme";
965                 e->usage =
966                         "Usage: meetme (un)lock|(un)mute|kick|list [concise] <confno> <usernumber>\n"
967                         "       Executes a command for the conference or on a conferee\n";
968                 return NULL;
969         case CLI_GENERATE:
970                 return complete_meetmecmd(a->line, a->word, a->pos, a->n);
971         }
972
973         if (a->argc > 8)
974                 ast_cli(a->fd, "Invalid Arguments.\n");
975         /* Check for length so no buffer will overflow... */
976         for (i = 0; i < a->argc; i++) {
977                 if (strlen(a->argv[i]) > 100)
978                         ast_cli(a->fd, "Invalid Arguments.\n");
979         }
980         if (a->argc == 1  || ( a->argc == 2 && !strcasecmp(a->argv[1], "concise") )) {
981                 /* 'MeetMe': List all the conferences */        
982                 int concise = ( a->argc == 2 && !strcasecmp(a->argv[1], "concise") );
983                 now = time(NULL);
984                 AST_LIST_LOCK(&confs);
985                 if (AST_LIST_EMPTY(&confs)) {
986                         if (!concise)
987                                 ast_cli(a->fd, "No active MeetMe conferences.\n");
988                         AST_LIST_UNLOCK(&confs);
989                         return CLI_SUCCESS;
990                 }
991                 if (!concise)
992                         ast_cli(a->fd, header_format, "Conf Num", "Parties", "Marked", "Activity", "Creation", "Locked");
993                 AST_LIST_TRAVERSE(&confs, cnf, list) {
994                         if (cnf->markedusers == 0)
995                                 strcpy(cmdline, "N/A ");
996                         else 
997                                 snprintf(cmdline, sizeof(cmdline), "%4.4d", cnf->markedusers);
998                         hr = (now - cnf->start) / 3600;
999                         min = ((now - cnf->start) % 3600) / 60;
1000                         sec = (now - cnf->start) % 60;
1001                         if (!concise)
1002                                 ast_cli(a->fd, data_format, cnf->confno, cnf->users, cmdline, hr, min, sec, cnf->isdynamic ? "Dynamic" : "Static", cnf->locked ? "Yes" : "No");
1003                         else {
1004                                 ast_cli(a->fd, "%s!%d!%d!%02d:%02d:%02d!%d!%d\n", 
1005                                         cnf->confno, 
1006                                         cnf->users, 
1007                                         cnf->markedusers, 
1008                                         hr, min, sec,
1009                                         cnf->isdynamic, 
1010                                         cnf->locked);
1011                         }
1012
1013                         total += cnf->users;    
1014                 }
1015                 AST_LIST_UNLOCK(&confs);
1016                 if (!concise)
1017                         ast_cli(a->fd, "* Total number of MeetMe users: %d\n", total);
1018                 return CLI_SUCCESS;
1019         }
1020         if (a->argc < 3)
1021                 return CLI_SHOWUSAGE;
1022         ast_copy_string(cmdline, a->argv[2], sizeof(cmdline));  /* Argv 2: conference number */
1023         if (strstr(a->argv[1], "lock")) {       
1024                 if (strcmp(a->argv[1], "lock") == 0) {
1025                         /* Lock */
1026                         strncat(cmdline, ",L", sizeof(cmdline) - strlen(cmdline) - 1);
1027                 } else {
1028                         /* Unlock */
1029                         strncat(cmdline, ",l", sizeof(cmdline) - strlen(cmdline) - 1);
1030                 }
1031         } else if (strstr(a->argv[1], "mute")) { 
1032                 if (a->argc < 4)
1033                         return CLI_SHOWUSAGE;
1034                 if (strcmp(a->argv[1], "mute") == 0) {
1035                         /* Mute */
1036                         if (strcmp(a->argv[3], "all") == 0) {
1037                                 strncat(cmdline, ",N", sizeof(cmdline) - strlen(cmdline) - 1);
1038                         } else {
1039                                 strncat(cmdline, ",M,", sizeof(cmdline) - strlen(cmdline) - 1); 
1040                                 strncat(cmdline, a->argv[3], sizeof(cmdline) - strlen(cmdline) - 1);
1041                         }
1042                 } else {
1043                         /* Unmute */
1044                         if (strcmp(a->argv[3], "all") == 0) {
1045                                 strncat(cmdline, ",n", sizeof(cmdline) - strlen(cmdline) - 1);
1046                         } else {
1047                                 strncat(cmdline, ",m,", sizeof(cmdline) - strlen(cmdline) - 1);
1048                                 strncat(cmdline, a->argv[3], sizeof(cmdline) - strlen(cmdline) - 1);
1049                         }
1050                 }
1051         } else if (strcmp(a->argv[1], "kick") == 0) {
1052                 if (a->argc < 4)
1053                         return CLI_SHOWUSAGE;
1054                 if (strcmp(a->argv[3], "all") == 0) {
1055                         /* Kick all */
1056                         strncat(cmdline, ",K", sizeof(cmdline) - strlen(cmdline) - 1);
1057                 } else {
1058                         /* Kick a single user */
1059                         strncat(cmdline, ",k,", sizeof(cmdline) - strlen(cmdline) - 1);
1060                         strncat(cmdline, a->argv[3], sizeof(cmdline) - strlen(cmdline) - 1);
1061                 }
1062         } else if(strcmp(a->argv[1], "list") == 0) {
1063                 int concise = ( 4 == a->argc && ( !strcasecmp(a->argv[3], "concise") ) );
1064                 /* List all the users in a conference */
1065                 if (AST_LIST_EMPTY(&confs)) {
1066                         if ( !concise )
1067                                 ast_cli(a->fd, "No active conferences.\n");
1068                         return CLI_SUCCESS;     
1069                 }
1070                 /* Find the right conference */
1071                 AST_LIST_LOCK(&confs);
1072                 AST_LIST_TRAVERSE(&confs, cnf, list) {
1073                         if (strcmp(cnf->confno, a->argv[2]) == 0)
1074                                 break;
1075                 }
1076                 if (!cnf) {
1077                         if ( !concise )
1078                                 ast_cli(a->fd, "No such conference: %s.\n",a->argv[2]);
1079                         AST_LIST_UNLOCK(&confs);
1080                         return CLI_SUCCESS;
1081                 }
1082                 /* Show all the users */
1083                 time(&now);
1084                 AST_LIST_TRAVERSE(&cnf->userlist, user, list) {
1085                         hr = (now - user->jointime) / 3600;
1086                         min = ((now - user->jointime) % 3600) / 60;
1087                         sec = (now - user->jointime) % 60;
1088                         if ( !concise )
1089                                 ast_cli(a->fd, "User #: %-2.2d %12.12s %-20.20s Channel: %s %s %s %s %s %s %02d:%02d:%02d\n",
1090                                         user->user_no,
1091                                         S_OR(user->chan->cid.cid_num, "<unknown>"),
1092                                         S_OR(user->chan->cid.cid_name, "<no name>"),
1093                                         user->chan->name,
1094                                         user->userflags & CONFFLAG_ADMIN ? "(Admin)" : "",
1095                                         user->userflags & CONFFLAG_MONITOR ? "(Listen only)" : "",
1096                                         user->adminflags & ADMINFLAG_MUTED ? "(Admin Muted)" : user->adminflags & ADMINFLAG_SELFMUTED ? "(Muted)" : "",
1097                                         user->adminflags & ADMINFLAG_T_REQUEST ? "(Request to Talk)" : "",
1098                                         istalking(user->talking), hr, min, sec); 
1099                         else 
1100                                 ast_cli(a->fd, "%d!%s!%s!%s!%s!%s!%s!%s!%d!%02d:%02d:%02d\n",
1101                                         user->user_no,
1102                                         S_OR(user->chan->cid.cid_num, ""),
1103                                         S_OR(user->chan->cid.cid_name, ""),
1104                                         user->chan->name,
1105                                         user->userflags  & CONFFLAG_ADMIN   ? "1" : "",
1106                                         user->userflags  & CONFFLAG_MONITOR ? "1" : "",
1107                                         user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)  ? "1" : "",
1108                                         user->adminflags & ADMINFLAG_T_REQUEST ? "1" : "",
1109                                         user->talking, hr, min, sec);
1110                         
1111                 }
1112                 if ( !concise )
1113                         ast_cli(a->fd,"%d users in that conference.\n",cnf->users);
1114                 AST_LIST_UNLOCK(&confs);
1115                 return CLI_SUCCESS;
1116         } else 
1117                 return CLI_SHOWUSAGE;
1118
1119         ast_debug(1, "Cmdline: %s\n", cmdline);
1120
1121         admin_exec(NULL, cmdline);
1122
1123         return CLI_SUCCESS;
1124 }
1125
1126 static const char *sla_hold_str(unsigned int hold_access)
1127 {
1128         const char *hold = "Unknown";
1129
1130         switch (hold_access) {
1131         case SLA_HOLD_OPEN:
1132                 hold = "Open";
1133                 break;
1134         case SLA_HOLD_PRIVATE:
1135                 hold = "Private";
1136         default:
1137                 break;
1138         }
1139
1140         return hold;
1141 }
1142
1143 static char *sla_show_trunks(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1144 {
1145         const struct sla_trunk *trunk;
1146
1147         switch (cmd) {
1148         case CLI_INIT:
1149                 e->command = "sla show trunks";
1150                 e->usage =
1151                         "Usage: sla show trunks\n"
1152                         "       This will list all trunks defined in sla.conf\n";
1153                 return NULL;
1154         case CLI_GENERATE:
1155                 return NULL;
1156         }
1157
1158         ast_cli(a->fd, "\n"
1159                     "=============================================================\n"
1160                     "=== Configured SLA Trunks ===================================\n"
1161                     "=============================================================\n"
1162                     "===\n");
1163         AST_RWLIST_RDLOCK(&sla_trunks);
1164         AST_RWLIST_TRAVERSE(&sla_trunks, trunk, entry) {
1165                 struct sla_station_ref *station_ref;
1166                 char ring_timeout[16] = "(none)";
1167                 if (trunk->ring_timeout)
1168                         snprintf(ring_timeout, sizeof(ring_timeout), "%u Seconds", trunk->ring_timeout);
1169                 ast_cli(a->fd, "=== ---------------------------------------------------------\n"
1170                             "=== Trunk Name:       %s\n"
1171                             "=== ==> Device:       %s\n"
1172                             "=== ==> AutoContext:  %s\n"
1173                             "=== ==> RingTimeout:  %s\n"
1174                             "=== ==> BargeAllowed: %s\n"
1175                             "=== ==> HoldAccess:   %s\n"
1176                             "=== ==> Stations ...\n",
1177                             trunk->name, trunk->device, 
1178                             S_OR(trunk->autocontext, "(none)"), 
1179                             ring_timeout,
1180                             trunk->barge_disabled ? "No" : "Yes",
1181                             sla_hold_str(trunk->hold_access));
1182                 AST_RWLIST_RDLOCK(&sla_stations);
1183                 AST_LIST_TRAVERSE(&trunk->stations, station_ref, entry)
1184                         ast_cli(a->fd, "===    ==> Station name: %s\n", station_ref->station->name);
1185                 AST_RWLIST_UNLOCK(&sla_stations);
1186                 ast_cli(a->fd, "=== ---------------------------------------------------------\n===\n");
1187         }
1188         AST_RWLIST_UNLOCK(&sla_trunks);
1189         ast_cli(a->fd, "=============================================================\n\n");
1190
1191         return CLI_SUCCESS;
1192 }
1193
1194 static const char *trunkstate2str(enum sla_trunk_state state)
1195 {
1196 #define S(e) case e: return # e;
1197         switch (state) {
1198         S(SLA_TRUNK_STATE_IDLE)
1199         S(SLA_TRUNK_STATE_RINGING)
1200         S(SLA_TRUNK_STATE_UP)
1201         S(SLA_TRUNK_STATE_ONHOLD)
1202         S(SLA_TRUNK_STATE_ONHOLD_BYME)
1203         }
1204         return "Uknown State";
1205 #undef S
1206 }
1207
1208 static char *sla_show_stations(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1209 {
1210         const struct sla_station *station;
1211
1212         switch (cmd) {
1213         case CLI_INIT:
1214                 e->command = "sla show stations";
1215                 e->usage =
1216                         "Usage: sla show stations\n"
1217                         "       This will list all stations defined in sla.conf\n";
1218                 return NULL;
1219         case CLI_GENERATE:
1220                 return NULL;
1221         }
1222
1223         ast_cli(a->fd, "\n" 
1224                     "=============================================================\n"
1225                     "=== Configured SLA Stations =================================\n"
1226                     "=============================================================\n"
1227                     "===\n");
1228         AST_RWLIST_RDLOCK(&sla_stations);
1229         AST_RWLIST_TRAVERSE(&sla_stations, station, entry) {
1230                 struct sla_trunk_ref *trunk_ref;
1231                 char ring_timeout[16] = "(none)";
1232                 char ring_delay[16] = "(none)";
1233                 if (station->ring_timeout) {
1234                         snprintf(ring_timeout, sizeof(ring_timeout), 
1235                                 "%u", station->ring_timeout);
1236                 }
1237                 if (station->ring_delay) {
1238                         snprintf(ring_delay, sizeof(ring_delay), 
1239                                 "%u", station->ring_delay);
1240                 }
1241                 ast_cli(a->fd, "=== ---------------------------------------------------------\n"
1242                             "=== Station Name:    %s\n"
1243                             "=== ==> Device:      %s\n"
1244                             "=== ==> AutoContext: %s\n"
1245                             "=== ==> RingTimeout: %s\n"
1246                             "=== ==> RingDelay:   %s\n"
1247                             "=== ==> HoldAccess:  %s\n"
1248                             "=== ==> Trunks ...\n",
1249                             station->name, station->device,
1250                             S_OR(station->autocontext, "(none)"), 
1251                             ring_timeout, ring_delay,
1252                             sla_hold_str(station->hold_access));
1253                 AST_RWLIST_RDLOCK(&sla_trunks);
1254                 AST_LIST_TRAVERSE(&station->trunks, trunk_ref, entry) {
1255                         if (trunk_ref->ring_timeout) {
1256                                 snprintf(ring_timeout, sizeof(ring_timeout),
1257                                         "%u", trunk_ref->ring_timeout);
1258                         } else
1259                                 strcpy(ring_timeout, "(none)");
1260                         if (trunk_ref->ring_delay) {
1261                                 snprintf(ring_delay, sizeof(ring_delay),
1262                                         "%u", trunk_ref->ring_delay);
1263                         } else
1264                                 strcpy(ring_delay, "(none)");
1265                                 ast_cli(a->fd, "===    ==> Trunk Name: %s\n"
1266                                     "===       ==> State:       %s\n"
1267                                     "===       ==> RingTimeout: %s\n"
1268                                     "===       ==> RingDelay:   %s\n",
1269                                     trunk_ref->trunk->name,
1270                                     trunkstate2str(trunk_ref->state),
1271                                     ring_timeout, ring_delay);
1272                 }
1273                 AST_RWLIST_UNLOCK(&sla_trunks);
1274                 ast_cli(a->fd, "=== ---------------------------------------------------------\n"
1275                             "===\n");
1276         }
1277         AST_RWLIST_UNLOCK(&sla_stations);
1278         ast_cli(a->fd, "============================================================\n"
1279                     "\n");
1280
1281         return CLI_SUCCESS;
1282 }
1283
1284 static struct ast_cli_entry cli_meetme[] = {
1285         AST_CLI_DEFINE(meetme_cmd, "Execute a command on a conference or conferee"),
1286         AST_CLI_DEFINE(sla_show_trunks, "Show SLA Trunks"),
1287         AST_CLI_DEFINE(sla_show_stations, "Show SLA Stations"),
1288 };
1289
1290 static void conf_flush(int fd, struct ast_channel *chan)
1291 {
1292         int x;
1293
1294         /* read any frames that may be waiting on the channel
1295            and throw them away
1296         */
1297         if (chan) {
1298                 struct ast_frame *f;
1299
1300                 /* when no frames are available, this will wait
1301                    for 1 millisecond maximum
1302                 */
1303                 while (ast_waitfor(chan, 1)) {
1304                         f = ast_read(chan);
1305                         if (f)
1306                                 ast_frfree(f);
1307                         else /* channel was hung up or something else happened */
1308                                 break;
1309                 }
1310         }
1311
1312         /* flush any data sitting in the pseudo channel */
1313         x = ZT_FLUSH_ALL;
1314         if (ioctl(fd, ZT_FLUSH, &x))
1315                 ast_log(LOG_WARNING, "Error flushing channel\n");
1316
1317 }
1318
1319 /* Remove the conference from the list and free it.
1320    We assume that this was called while holding conflock. */
1321 static int conf_free(struct ast_conference *conf)
1322 {
1323         int x;
1324         
1325         AST_LIST_REMOVE(&confs, conf, list);
1326         manager_event(EVENT_FLAG_CALL, "MeetmeEnd", "Meetme: %s\r\n", conf->confno);
1327
1328         if (conf->recording == MEETME_RECORD_ACTIVE) {
1329                 conf->recording = MEETME_RECORD_TERMINATE;
1330                 AST_LIST_UNLOCK(&confs);
1331                 while (1) {
1332                         usleep(1);
1333                         AST_LIST_LOCK(&confs);
1334                         if (conf->recording == MEETME_RECORD_OFF)
1335                                 break;
1336                         AST_LIST_UNLOCK(&confs);
1337                 }
1338         }
1339
1340         for (x=0;x<AST_FRAME_BITS;x++) {
1341                 if (conf->transframe[x])
1342                         ast_frfree(conf->transframe[x]);
1343                 if (conf->transpath[x])
1344                         ast_translator_free_path(conf->transpath[x]);
1345         }
1346         if (conf->origframe)
1347                 ast_frfree(conf->origframe);
1348         if (conf->lchan)
1349                 ast_hangup(conf->lchan);
1350         if (conf->chan)
1351                 ast_hangup(conf->chan);
1352         if (conf->fd >= 0)
1353                 close(conf->fd);
1354
1355         ast_mutex_destroy(&conf->playlock);
1356         ast_mutex_destroy(&conf->listenlock);
1357         ast_mutex_destroy(&conf->recordthreadlock);
1358         ast_free(conf);
1359
1360         return 0;
1361 }
1362
1363 static void conf_queue_dtmf(const struct ast_conference *conf,
1364         const struct ast_conf_user *sender, struct ast_frame *f)
1365 {
1366         struct ast_conf_user *user;
1367
1368         AST_LIST_TRAVERSE(&conf->userlist, user, list) {
1369                 if (user == sender)
1370                         continue;
1371                 if (ast_write(user->chan, f) < 0)
1372                         ast_log(LOG_WARNING, "Error writing frame to channel %s\n", user->chan->name);
1373         }
1374 }
1375
1376 static void sla_queue_event_full(enum sla_event_type type, 
1377         struct sla_trunk_ref *trunk_ref, struct sla_station *station, int lock)
1378 {
1379         struct sla_event *event;
1380
1381         if (!(event = ast_calloc(1, sizeof(*event))))
1382                 return;
1383
1384         event->type = type;
1385         event->trunk_ref = trunk_ref;
1386         event->station = station;
1387
1388         if (!lock) {
1389                 AST_LIST_INSERT_TAIL(&sla.event_q, event, entry);
1390                 return;
1391         }
1392
1393         ast_mutex_lock(&sla.lock);
1394         AST_LIST_INSERT_TAIL(&sla.event_q, event, entry);
1395         ast_cond_signal(&sla.cond);
1396         ast_mutex_unlock(&sla.lock);
1397 }
1398
1399 static void sla_queue_event_nolock(enum sla_event_type type)
1400 {
1401         sla_queue_event_full(type, NULL, NULL, 0);
1402 }
1403
1404 static void sla_queue_event(enum sla_event_type type)
1405 {
1406         sla_queue_event_full(type, NULL, NULL, 1);
1407 }
1408
1409 /*! \brief Queue a SLA event from the conference */
1410 static void sla_queue_event_conf(enum sla_event_type type, struct ast_channel *chan,
1411         struct ast_conference *conf)
1412 {
1413         struct sla_station *station;
1414         struct sla_trunk_ref *trunk_ref = NULL;
1415         char *trunk_name;
1416
1417         trunk_name = ast_strdupa(conf->confno);
1418         strsep(&trunk_name, "_");
1419         if (ast_strlen_zero(trunk_name)) {
1420                 ast_log(LOG_ERROR, "Invalid conference name for SLA - '%s'!\n", conf->confno);
1421                 return;
1422         }
1423
1424         AST_RWLIST_RDLOCK(&sla_stations);
1425         AST_RWLIST_TRAVERSE(&sla_stations, station, entry) {
1426                 AST_LIST_TRAVERSE(&station->trunks, trunk_ref, entry) {
1427                         if (trunk_ref->chan == chan && !strcmp(trunk_ref->trunk->name, trunk_name))
1428                                 break;
1429                 }
1430                 if (trunk_ref)
1431                         break;
1432         }
1433         AST_RWLIST_UNLOCK(&sla_stations);
1434
1435         if (!trunk_ref) {
1436                 ast_debug(1, "Trunk not found for event!\n");
1437                 return;
1438         }
1439
1440         sla_queue_event_full(type, trunk_ref, station, 1);
1441 }
1442
1443 /* Decrement reference counts, as incremented by find_conf() */
1444 static int dispose_conf(struct ast_conference *conf)
1445 {
1446         int res = 0;
1447         int confno_int = 0;
1448
1449         AST_LIST_LOCK(&confs);
1450         if (ast_atomic_dec_and_test(&conf->refcount)) {
1451                 /* Take the conference room number out of an inuse state */
1452                 if ((sscanf(conf->confno, "%d", &confno_int) == 1) && (confno_int >= 0 && confno_int < 1024))
1453                         conf_map[confno_int] = 0;
1454                 conf_free(conf);
1455                 res = 1;
1456         }
1457         AST_LIST_UNLOCK(&confs);
1458
1459         return res;
1460 }
1461
1462 static void conf_start_moh(struct ast_channel *chan, const char *musicclass)
1463 {
1464         char *original_moh;
1465
1466         ast_channel_lock(chan);
1467         original_moh = ast_strdupa(chan->musicclass);
1468         ast_string_field_set(chan, musicclass, musicclass);
1469         ast_channel_unlock(chan);
1470
1471         ast_moh_start(chan, original_moh, NULL);
1472
1473         ast_channel_lock(chan);
1474         ast_string_field_set(chan, musicclass, original_moh);
1475         ast_channel_unlock(chan);
1476 }
1477
1478 static int conf_run(struct ast_channel *chan, struct ast_conference *conf, int confflags, char *optargs[])
1479 {
1480         struct ast_conf_user *user = NULL;
1481         struct ast_conf_user *usr = NULL;
1482         int fd;
1483         struct zt_confinfo ztc, ztc_empty;
1484         struct ast_frame *f;
1485         struct ast_channel *c;
1486         struct ast_frame fr;
1487         int outfd;
1488         int ms;
1489         int nfds;
1490         int res;
1491         int flags;
1492         int retryzap;
1493         int origfd;
1494         int musiconhold = 0;
1495         int firstpass = 0;
1496         int lastmarked = 0;
1497         int currentmarked = 0;
1498         int ret = -1;
1499         int x;
1500         int menu_active = 0;
1501         int talkreq_manager = 0;
1502         int using_pseudo = 0;
1503         int duration=20;
1504         int hr, min, sec;
1505         int sent_event = 0;
1506         int checked = 0;
1507         int announcement_played = 0;
1508         struct timeval now;
1509         struct ast_dsp *dsp=NULL;
1510         struct ast_app *app;
1511         const char *agifile;
1512         const char *agifiledefault = "conf-background.agi";
1513         char meetmesecs[30] = "";
1514         char exitcontext[AST_MAX_CONTEXT] = "";
1515         char recordingtmp[AST_MAX_EXTENSION] = "";
1516         char members[10] = "";
1517         int dtmf, opt_waitmarked_timeout = 0;
1518         time_t timeout = 0;
1519         ZT_BUFFERINFO bi;
1520         char __buf[CONF_SIZE + AST_FRIENDLY_OFFSET];
1521         char *buf = __buf + AST_FRIENDLY_OFFSET;
1522         char *exitkeys = NULL;
1523         time_t myt;
1524         unsigned int calldurationlimit = 0;
1525         long timelimit = 0;
1526         long play_warning = 0;
1527         long warning_freq = 0;
1528         const char *warning_sound = NULL;
1529         const char *end_sound = NULL;
1530         char *parse;    
1531         long time_left_ms = 0;
1532         struct timeval nexteventts = { 0, };
1533         int to;
1534  
1535         if (!(user = ast_calloc(1, sizeof(*user))))
1536                 return ret;
1537
1538         /* Possible timeout waiting for marked user */
1539         if ((confflags & CONFFLAG_WAITMARKED) &&
1540                 !ast_strlen_zero(optargs[OPT_ARG_WAITMARKED]) &&
1541                 (sscanf(optargs[OPT_ARG_WAITMARKED], "%d", &opt_waitmarked_timeout) == 1) &&
1542                 (opt_waitmarked_timeout > 0)) {
1543                 timeout = time(NULL) + opt_waitmarked_timeout;
1544         }
1545                 
1546         if ((confflags & CONFFLAG_DURATION_STOP) && !ast_strlen_zero(optargs[OPT_ARG_DURATION_STOP])) {
1547                 calldurationlimit = atoi(optargs[OPT_ARG_DURATION_STOP]);
1548                 if (option_verbose > 2)
1549                         ast_verbose(VERBOSE_PREFIX_3 "Setting call duration limit to %d seconds.\n",calldurationlimit);
1550         }
1551         
1552         if ((confflags & CONFFLAG_DURATION_LIMIT) && !ast_strlen_zero(optargs[OPT_ARG_DURATION_LIMIT])) {
1553                 char *limit_str, *warning_str, *warnfreq_str;
1554                 const char *var;
1555  
1556                 parse = optargs[OPT_ARG_DURATION_LIMIT];
1557                 limit_str = strsep(&parse, ":");
1558                 warning_str = strsep(&parse, ":");
1559                 warnfreq_str = parse;
1560  
1561                 timelimit = atol(limit_str);
1562                 if (warning_str)
1563                         play_warning = atol(warning_str);
1564                 if (warnfreq_str)
1565                         warning_freq = atol(warnfreq_str);
1566  
1567                 if (!timelimit) {
1568                         timelimit = play_warning = warning_freq = 0;
1569                         warning_sound = NULL;
1570                 } else if (play_warning > timelimit) {                  
1571                         if (!warning_freq) {
1572                                 play_warning = 0;
1573                         } else {
1574                                 while (play_warning > timelimit)
1575                                         play_warning -= warning_freq;
1576                                 if (play_warning < 1)
1577                                         play_warning = warning_freq = 0;
1578                         }
1579                 }
1580                         
1581                 var = pbx_builtin_getvar_helper(chan,"CONF_LIMIT_WARNING_FILE");
1582                 warning_sound = var ? var : "timeleft";
1583                 
1584                 var = pbx_builtin_getvar_helper(chan,"CONF_LIMIT_TIMEOUT_FILE");
1585                 end_sound = var ? var : NULL;
1586                         
1587                 /* undo effect of S(x) in case they are both used */
1588                 calldurationlimit = 0;
1589                 /* more efficient do it like S(x) does since no advanced opts */
1590                 if (!play_warning && !end_sound && timelimit) { 
1591                         calldurationlimit = timelimit / 1000;
1592                         timelimit = play_warning = warning_freq = 0;
1593                 } else {
1594                         ast_debug(2, "Limit Data for this call:\n");
1595                         ast_debug(2, "- timelimit     = %ld\n", timelimit);
1596                         ast_debug(2, "- play_warning  = %ld\n", play_warning);
1597                         ast_debug(2, "- warning_freq  = %ld\n", warning_freq);
1598                         ast_debug(2, "- warning_sound = %s\n", warning_sound ? warning_sound : "UNDEF");
1599                         ast_debug(2, "- end_sound     = %s\n", end_sound ? end_sound : "UNDEF");
1600                 }
1601         }
1602
1603         /* Get exit keys */
1604         if ((confflags & CONFFLAG_KEYEXIT)) {
1605                 if (!ast_strlen_zero(optargs[OPT_ARG_EXITKEYS]))
1606                         exitkeys = ast_strdupa(optargs[OPT_ARG_EXITKEYS]);
1607                 else
1608                         exitkeys = ast_strdupa("#"); /* Default */
1609         }
1610         
1611         if (confflags & CONFFLAG_RECORDCONF) {
1612                 if (!conf->recordingfilename) {
1613                         conf->recordingfilename = pbx_builtin_getvar_helper(chan, "MEETME_RECORDINGFILE");
1614                         if (!conf->recordingfilename) {
1615                                 snprintf(recordingtmp, sizeof(recordingtmp), "meetme-conf-rec-%s-%s", conf->confno, chan->uniqueid);
1616                                 conf->recordingfilename = ast_strdupa(recordingtmp);
1617                         }
1618                         conf->recordingformat = pbx_builtin_getvar_helper(chan, "MEETME_RECORDINGFORMAT");
1619                         if (!conf->recordingformat) {
1620                                 ast_copy_string(recordingtmp, "wav", sizeof(recordingtmp));
1621                                 conf->recordingformat = ast_strdupa(recordingtmp);
1622                         }
1623                         ast_verb(4, "Starting recording of MeetMe Conference %s into file %s.%s.\n",
1624                                     conf->confno, conf->recordingfilename, conf->recordingformat);
1625                 }
1626         }
1627
1628         ast_mutex_lock(&conf->recordthreadlock);
1629         if ((conf->recordthread == AST_PTHREADT_NULL) && (confflags & CONFFLAG_RECORDCONF) && ((conf->lchan = ast_request("zap", AST_FORMAT_SLINEAR, "pseudo", NULL)))) {
1630                 ast_set_read_format(conf->lchan, AST_FORMAT_SLINEAR);
1631                 ast_set_write_format(conf->lchan, AST_FORMAT_SLINEAR);
1632                 ztc.chan = 0;
1633                 ztc.confno = conf->zapconf;
1634                 ztc.confmode = ZT_CONF_CONFANN | ZT_CONF_CONFANNMON;
1635                 if (ioctl(conf->lchan->fds[0], ZT_SETCONF, &ztc)) {
1636                         ast_log(LOG_WARNING, "Error starting listen channel\n");
1637                         ast_hangup(conf->lchan);
1638                         conf->lchan = NULL;
1639                 } else {
1640                         ast_pthread_create_detached_background(&conf->recordthread, NULL, recordthread, conf);
1641                 }
1642         }
1643         ast_mutex_unlock(&conf->recordthreadlock);
1644
1645         time(&user->jointime);
1646         
1647         user->timelimit = timelimit;
1648         user->play_warning = play_warning;
1649         user->warning_freq = warning_freq;
1650         user->warning_sound = warning_sound;
1651         user->end_sound = end_sound;    
1652         
1653         if (calldurationlimit > 0) {
1654                 time(&user->kicktime);
1655                 user->kicktime = user->kicktime + calldurationlimit;
1656         }
1657         
1658         if (ast_tvzero(user->start_time))
1659                 user->start_time = ast_tvnow();
1660         time_left_ms = user->timelimit;
1661         
1662         if (user->timelimit) {
1663                 nexteventts = ast_tvadd(user->start_time, ast_samp2tv(user->timelimit, 1000));
1664                 nexteventts = ast_tvsub(nexteventts, ast_samp2tv(user->play_warning, 1000));
1665         }
1666
1667         if (conf->locked && (!(confflags & CONFFLAG_ADMIN))) {
1668                 /* Sorry, but this conference is locked! */     
1669                 if (!ast_streamfile(chan, "conf-locked", chan->language))
1670                         ast_waitstream(chan, "");
1671                 goto outrun;
1672         }
1673
1674         if (confflags & CONFFLAG_MARKEDUSER)
1675                 conf->markedusers++;
1676       
1677         ast_mutex_lock(&conf->playlock);
1678
1679         if (AST_LIST_EMPTY(&conf->userlist))
1680                 user->user_no = 1;
1681         else
1682                 user->user_no = AST_LIST_LAST(&conf->userlist)->user_no + 1;
1683
1684         if (rt_schedule && conf->maxusers)
1685                 if (user->user_no > conf->maxusers){
1686                         /* Sorry, but this confernce has reached the participant limit! */      
1687                         if (!ast_streamfile(chan, "conf-full", chan->language))
1688                                 ast_waitstream(chan, "");
1689                         goto outrun;
1690                 }
1691
1692         AST_LIST_INSERT_TAIL(&conf->userlist, user, list);
1693
1694         user->chan = chan;
1695         user->userflags = confflags;
1696         user->adminflags = (confflags & CONFFLAG_STARTMUTED) ? ADMINFLAG_SELFMUTED : 0;
1697         user->talking = -1;
1698         conf->users++;
1699         if (rt_log_members) {
1700                 /* Update table */
1701                 snprintf(members, sizeof(members), "%d", conf->users);
1702                 ast_update_realtime("meetme", "confno", conf->confno, "members", members, NULL);
1703         }
1704         /* This device changed state now - if this is the first user */
1705         if (conf->users == 1)
1706                 ast_devstate_changed(AST_DEVICE_INUSE, "meetme:%s", conf->confno);
1707
1708         ast_mutex_unlock(&conf->playlock);
1709
1710         /* return the unique ID of the conference */
1711         pbx_builtin_setvar_helper(chan, "MEETMEUNIQUEID", conf->uniqueid);
1712
1713         if (confflags & CONFFLAG_EXIT_CONTEXT) {
1714                 if ((agifile = pbx_builtin_getvar_helper(chan, "MEETME_EXIT_CONTEXT"))) 
1715                         ast_copy_string(exitcontext, agifile, sizeof(exitcontext));
1716                 else if (!ast_strlen_zero(chan->macrocontext)) 
1717                         ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
1718                 else
1719                         ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
1720         }
1721
1722         if (!(confflags & CONFFLAG_QUIET) && ((confflags & CONFFLAG_INTROUSER) || (confflags & CONFFLAG_INTROUSERNOREVIEW))) {
1723                 snprintf(user->namerecloc, sizeof(user->namerecloc),
1724                          "%s/meetme/meetme-username-%s-%d", ast_config_AST_SPOOL_DIR,
1725                          conf->confno, user->user_no);
1726                 if (confflags & CONFFLAG_INTROUSERNOREVIEW)
1727                         res = ast_play_and_record(chan, "vm-rec-name", user->namerecloc, 10, "sln", &duration, 128, 0, NULL);
1728                 else
1729                         res = ast_record_review(chan, "vm-rec-name", user->namerecloc, 10, "sln", &duration, NULL);
1730                 if (res == -1)
1731                         goto outrun;
1732         }
1733
1734         if ( !(confflags & (CONFFLAG_QUIET | CONFFLAG_NOONLYPERSON)) ) {
1735                 if (conf->users == 1 && !(confflags & CONFFLAG_WAITMARKED))
1736                         if (!ast_streamfile(chan, "conf-onlyperson", chan->language))
1737                                 ast_waitstream(chan, "");
1738                 if ((confflags & CONFFLAG_WAITMARKED) && conf->markedusers == 0)
1739                         if (!ast_streamfile(chan, "conf-waitforleader", chan->language))
1740                                 ast_waitstream(chan, "");
1741         }
1742
1743         if (!(confflags & CONFFLAG_QUIET) && (confflags & CONFFLAG_ANNOUNCEUSERCOUNT) && conf->users > 1) {
1744                 int keepplaying = 1;
1745
1746                 if (conf->users == 2) { 
1747                         if (!ast_streamfile(chan,"conf-onlyone",chan->language)) {
1748                                 res = ast_waitstream(chan, AST_DIGIT_ANY);
1749                                 ast_stopstream(chan);
1750                                 if (res > 0)
1751                                         keepplaying=0;
1752                                 else if (res == -1)
1753                                         goto outrun;
1754                         }
1755                 } else { 
1756                         if (!ast_streamfile(chan, "conf-thereare", chan->language)) {
1757                                 res = ast_waitstream(chan, AST_DIGIT_ANY);
1758                                 ast_stopstream(chan);
1759                                 if (res > 0)
1760                                         keepplaying=0;
1761                                 else if (res == -1)
1762                                         goto outrun;
1763                         }
1764                         if (keepplaying) {
1765                                 res = ast_say_number(chan, conf->users - 1, AST_DIGIT_ANY, chan->language, (char *) NULL);
1766                                 if (res > 0)
1767                                         keepplaying=0;
1768                                 else if (res == -1)
1769                                         goto outrun;
1770                         }
1771                         if (keepplaying && !ast_streamfile(chan, "conf-otherinparty", chan->language)) {
1772                                 res = ast_waitstream(chan, AST_DIGIT_ANY);
1773                                 ast_stopstream(chan);
1774                                 if (res > 0)
1775                                         keepplaying=0;
1776                                 else if (res == -1) 
1777                                         goto outrun;
1778                         }
1779                 }
1780         }
1781
1782         ast_indicate(chan, -1);
1783
1784         if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
1785                 ast_log(LOG_WARNING, "Unable to set '%s' to write linear mode\n", chan->name);
1786                 goto outrun;
1787         }
1788
1789         if (ast_set_read_format(chan, AST_FORMAT_SLINEAR) < 0) {
1790                 ast_log(LOG_WARNING, "Unable to set '%s' to read linear mode\n", chan->name);
1791                 goto outrun;
1792         }
1793
1794         retryzap = (strcasecmp(chan->tech->type, "Zap") || chan->audiohooks ? 1 : 0);
1795         user->zapchannel = !retryzap;
1796
1797  zapretry:
1798         origfd = chan->fds[0];
1799         if (retryzap) {
1800                 fd = open("/dev/zap/pseudo", O_RDWR);
1801                 if (fd < 0) {
1802                         ast_log(LOG_WARNING, "Unable to open pseudo channel: %s\n", strerror(errno));
1803                         goto outrun;
1804                 }
1805                 using_pseudo = 1;
1806                 /* Make non-blocking */
1807                 flags = fcntl(fd, F_GETFL);
1808                 if (flags < 0) {
1809                         ast_log(LOG_WARNING, "Unable to get flags: %s\n", strerror(errno));
1810                         close(fd);
1811                         goto outrun;
1812                 }
1813                 if (fcntl(fd, F_SETFL, flags | O_NONBLOCK)) {
1814                         ast_log(LOG_WARNING, "Unable to set flags: %s\n", strerror(errno));
1815                         close(fd);
1816                         goto outrun;
1817                 }
1818                 /* Setup buffering information */
1819                 memset(&bi, 0, sizeof(bi));
1820                 bi.bufsize = CONF_SIZE/2;
1821                 bi.txbufpolicy = ZT_POLICY_IMMEDIATE;
1822                 bi.rxbufpolicy = ZT_POLICY_IMMEDIATE;
1823                 bi.numbufs = audio_buffers;
1824                 if (ioctl(fd, ZT_SET_BUFINFO, &bi)) {
1825                         ast_log(LOG_WARNING, "Unable to set buffering information: %s\n", strerror(errno));
1826                         close(fd);
1827                         goto outrun;
1828                 }
1829                 x = 1;
1830                 if (ioctl(fd, ZT_SETLINEAR, &x)) {
1831                         ast_log(LOG_WARNING, "Unable to set linear mode: %s\n", strerror(errno));
1832                         close(fd);
1833                         goto outrun;
1834                 }
1835                 nfds = 1;
1836         } else {
1837                 /* XXX Make sure we're not running on a pseudo channel XXX */
1838                 fd = chan->fds[0];
1839                 nfds = 0;
1840         }
1841         memset(&ztc, 0, sizeof(ztc));
1842         memset(&ztc_empty, 0, sizeof(ztc_empty));
1843         /* Check to see if we're in a conference... */
1844         ztc.chan = 0;   
1845         if (ioctl(fd, ZT_GETCONF, &ztc)) {
1846                 ast_log(LOG_WARNING, "Error getting conference\n");
1847                 close(fd);
1848                 goto outrun;
1849         }
1850         if (ztc.confmode) {
1851                 /* Whoa, already in a conference...  Retry... */
1852                 if (!retryzap) {
1853                         ast_debug(1, "Zap channel is in a conference already, retrying with pseudo\n");
1854                         retryzap = 1;
1855                         goto zapretry;
1856                 }
1857         }
1858         memset(&ztc, 0, sizeof(ztc));
1859         /* Add us to the conference */
1860         ztc.chan = 0;   
1861         ztc.confno = conf->zapconf;
1862
1863         ast_mutex_lock(&conf->playlock);
1864
1865         if (!(confflags & CONFFLAG_QUIET) && ((confflags & CONFFLAG_INTROUSER) || (confflags & CONFFLAG_INTROUSERNOREVIEW)) && conf->users > 1) {
1866                 if (conf->chan && ast_fileexists(user->namerecloc, NULL, NULL)) {
1867                         if (!ast_streamfile(conf->chan, user->namerecloc, chan->language))
1868                                 ast_waitstream(conf->chan, "");
1869                         if (!ast_streamfile(conf->chan, "conf-hasjoin", chan->language))
1870                                 ast_waitstream(conf->chan, "");
1871                 }
1872         }
1873
1874         if (confflags & CONFFLAG_MONITOR)
1875                 ztc.confmode = ZT_CONF_CONFMON | ZT_CONF_LISTENER;
1876         else if (confflags & CONFFLAG_TALKER)
1877                 ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER;
1878         else 
1879                 ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
1880
1881         if (ioctl(fd, ZT_SETCONF, &ztc)) {
1882                 ast_log(LOG_WARNING, "Error setting conference\n");
1883                 close(fd);
1884                 ast_mutex_unlock(&conf->playlock);
1885                 goto outrun;
1886         }
1887         ast_debug(1, "Placed channel %s in ZAP conf %d\n", chan->name, conf->zapconf);
1888
1889         if (!sent_event) {
1890                 manager_event(EVENT_FLAG_CALL, "MeetmeJoin", 
1891                                 "Channel: %s\r\n"
1892                                 "Uniqueid: %s\r\n"
1893                                 "Meetme: %s\r\n"
1894                                 "CallerIDnum: %s\r\n"
1895                                 "CallerIDname: %s\r\n"
1896                                 "Duration: %ld\r\n",
1897                                 chan->name, chan->uniqueid, conf->confno, 
1898                               user->user_no,
1899                               S_OR(user->chan->cid.cid_num, "<unknown>"),
1900                               S_OR(user->chan->cid.cid_name, "<unknown>"),
1901                 sent_event = 1;
1902         }
1903
1904         if (!firstpass && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN)) {
1905                 firstpass = 1;
1906                 if (!(confflags & CONFFLAG_QUIET))
1907                         if (!(confflags & CONFFLAG_WAITMARKED) || ((confflags & CONFFLAG_MARKEDUSER) && (conf->markedusers >= 1)))
1908                                 conf_play(chan, conf, ENTER);
1909         }
1910
1911         ast_mutex_unlock(&conf->playlock);
1912
1913         conf_flush(fd, chan);
1914
1915         if (confflags & CONFFLAG_AGI) {
1916                 /* Get name of AGI file to run from $(MEETME_AGI_BACKGROUND)
1917                    or use default filename of conf-background.agi */
1918
1919                 agifile = pbx_builtin_getvar_helper(chan, "MEETME_AGI_BACKGROUND");
1920                 if (!agifile)
1921                         agifile = agifiledefault;
1922
1923                 if (user->zapchannel) {
1924                         /*  Set CONFMUTE mode on Zap channel to mute DTMF tones */
1925                         x = 1;
1926                         ast_channel_setoption(chan, AST_OPTION_TONE_VERIFY, &x, sizeof(char), 0);
1927                 }
1928                 /* Find a pointer to the agi app and execute the script */
1929                 app = pbx_findapp("agi");
1930                 if (app) {
1931                         char *s = ast_strdupa(agifile);
1932                         ret = pbx_exec(chan, app, s);
1933                 } else {
1934                         ast_log(LOG_WARNING, "Could not find application (agi)\n");
1935                         ret = -2;
1936                 }
1937                 if (user->zapchannel) {
1938                         /*  Remove CONFMUTE mode on Zap channel */
1939                         x = 0;
1940                         ast_channel_setoption(chan, AST_OPTION_TONE_VERIFY, &x, sizeof(char), 0);
1941                 }
1942         } else {
1943                 if (user->zapchannel && (confflags & CONFFLAG_STARMENU)) {
1944                         /*  Set CONFMUTE mode on Zap channel to mute DTMF tones when the menu is enabled */
1945                         x = 1;
1946                         ast_channel_setoption(chan, AST_OPTION_TONE_VERIFY, &x, sizeof(char), 0);
1947                 }       
1948                 if (!(confflags & CONFFLAG_MONITOR) && !(dsp = ast_dsp_new())) {
1949                         ast_log(LOG_WARNING, "Unable to allocate DSP!\n");
1950                         res = -1;
1951                 }
1952                 for (;;) {
1953                         int menu_was_active = 0;
1954
1955                         outfd = -1;
1956                         ms = -1;
1957
1958                         if (rt_schedule) {
1959                                 char currenttime[32];
1960                                 struct ast_tm tm;
1961
1962                                 now = ast_tvnow();
1963                                 if (now.tv_sec % 60 == 0) {
1964                                         if (!checked) {
1965                                                 ast_localtime(&now, &tm, NULL);
1966                                                 ast_strftime(currenttime, sizeof(currenttime), DATE_FORMAT, &tm);
1967                                                 if (strcmp(currenttime, conf->endtime) > 0){
1968                                                         ast_verbose("Quitting time...\n");
1969                                                         goto outrun;
1970                                                 }
1971
1972                                                 if (!announcement_played && conf->endalert) {
1973                                                         now.tv_sec += conf->endalert; 
1974                                                         ast_localtime(&now, &tm, NULL);
1975                                                         ast_strftime(currenttime, sizeof(currenttime), DATE_FORMAT, &tm);
1976                                                         if (strcmp(currenttime, conf->endtime) > 0){
1977                                                                 if (!ast_streamfile(chan, "conf-will-end-in", chan->language))
1978                                                                         ast_waitstream(chan, "");
1979                                                                 ast_say_digits(chan, conf->endalert / 60, "", chan->language);
1980                                                                 if (!ast_streamfile(chan, "minutes", chan->language))
1981                                                                         ast_waitstream(chan, "");
1982                                                                 announcement_played = 1;
1983
1984                                                         }
1985                                                 }
1986                                                 checked = 1;
1987                                                 
1988                                         }
1989                                 } else {
1990                                         checked = 0;
1991                                 }
1992                         }
1993
1994                         time(&myt); /* get current time */
1995                         if (user->kicktime && (user->kicktime < myt)) 
1996                                 break;
1997   
1998                         to = -1;
1999                         if (user->timelimit) {
2000                                 struct timeval now;
2001                                 int minutes = 0, seconds = 0, remain = 0;
2002                                 
2003                                 now = ast_tvnow();
2004                                 to = ast_tvdiff_ms(nexteventts, now);
2005                                 if (to < 0)
2006                                         to = 0;
2007                                 time_left_ms = user->timelimit - ast_tvdiff_ms(now, user->start_time);
2008                                 if (time_left_ms < to)
2009                                         to = time_left_ms;
2010         
2011                                 if (time_left_ms <= 0) {
2012                                         if (user->end_sound){                                           
2013                                                 res = ast_streamfile(chan, user->end_sound, chan->language);
2014                                                 res = ast_waitstream(chan, "");
2015                                         }
2016                                         break;
2017                                 }
2018                                 
2019                                 if (!to) {
2020                                         if (time_left_ms >= 5000) {                                             
2021                                                 
2022                                                 remain = (time_left_ms + 500) / 1000;
2023                                                 if (remain / 60 >= 1) {
2024                                                         minutes = remain / 60;
2025                                                         seconds = remain % 60;
2026                                                 } else {
2027                                                         seconds = remain;
2028                                                 }
2029                                                 
2030                                                 /* force the time left to round up if appropriate */
2031                                                 if (user->warning_sound && user->play_warning){
2032                                                         if (!strcmp(user->warning_sound,"timeleft")) {
2033                                                                 
2034                                                                 res = ast_streamfile(chan, "vm-youhave", chan->language);
2035                                                                 res = ast_waitstream(chan, "");
2036                                                                 if (minutes) {
2037                                                                         res = ast_say_number(chan, minutes, AST_DIGIT_ANY, chan->language, (char *) NULL);
2038                                                                         res = ast_streamfile(chan, "queue-minutes", chan->language);
2039                                                                         res = ast_waitstream(chan, "");
2040                                                                 }
2041                                                                 if (seconds) {
2042                                                                         res = ast_say_number(chan, seconds, AST_DIGIT_ANY, chan->language, (char *) NULL);
2043                                                                         res = ast_streamfile(chan, "queue-seconds", chan->language);
2044                                                                         res = ast_waitstream(chan, "");
2045                                                                 }
2046                                                         } else {
2047                                                                 res = ast_streamfile(chan, user->warning_sound, chan->language);
2048                                                                 res = ast_waitstream(chan, "");
2049                                                         }
2050                                                 }
2051                                         }
2052                                         if (user->warning_freq)
2053                                                 nexteventts = ast_tvadd(nexteventts, ast_samp2tv(user->warning_freq, 1000));
2054                                         else
2055                                                 nexteventts = ast_tvadd(user->start_time, ast_samp2tv(user->timelimit, 1000));
2056                                 }
2057                         }
2058
2059                         if (timeout && time(NULL) >= timeout)
2060                                 break;
2061
2062                         /* if we have just exited from the menu, and the user had a channel-driver
2063                            volume adjustment, restore it
2064                         */
2065                         if (!menu_active && menu_was_active && user->listen.desired && !user->listen.actual)
2066                                 set_talk_volume(user, user->listen.desired);
2067
2068                         menu_was_active = menu_active;
2069
2070                         currentmarked = conf->markedusers;
2071                         if (!(confflags & CONFFLAG_QUIET) &&
2072                             (confflags & CONFFLAG_MARKEDUSER) &&
2073                             (confflags & CONFFLAG_WAITMARKED) &&
2074                             lastmarked == 0) {
2075                                 if (currentmarked == 1 && conf->users > 1) {
2076                                         ast_say_number(chan, conf->users - 1, AST_DIGIT_ANY, chan->language, (char *) NULL);
2077                                         if (conf->users - 1 == 1) {
2078                                                 if (!ast_streamfile(chan, "conf-userwilljoin", chan->language))
2079                                                         ast_waitstream(chan, "");
2080                                         } else {
2081                                                 if (!ast_streamfile(chan, "conf-userswilljoin", chan->language))
2082                                                         ast_waitstream(chan, "");
2083                                         }
2084                                 }
2085                                 if (conf->users == 1 && ! (confflags & CONFFLAG_MARKEDUSER))
2086                                         if (!ast_streamfile(chan, "conf-onlyperson", chan->language))
2087                                                 ast_waitstream(chan, "");
2088                         }
2089
2090                         c = ast_waitfor_nandfds(&chan, 1, &fd, nfds, NULL, &outfd, &ms);
2091                         
2092                         
2093                         /* Update the struct with the actual confflags */
2094                         user->userflags = confflags;
2095                         
2096                         if (confflags & CONFFLAG_WAITMARKED) {
2097                                 if(currentmarked == 0) {
2098                                         if (lastmarked != 0) {
2099                                                 if (!(confflags & CONFFLAG_QUIET))
2100                                                         if (!ast_streamfile(chan, "conf-leaderhasleft", chan->language))
2101                                                                 ast_waitstream(chan, "");
2102                                                 if (confflags & CONFFLAG_MARKEDEXIT) {
2103                                                         if (confflags & CONFFLAG_KICK_CONTINUE)
2104                                                                 ret = 0;
2105                                                         break;
2106                                                 } else {
2107                                                         ztc.confmode = ZT_CONF_CONF;
2108                                                         if (ioctl(fd, ZT_SETCONF, &ztc)) {
2109                                                                 ast_log(LOG_WARNING, "Error setting conference\n");
2110                                                                 close(fd);
2111                                                                 goto outrun;
2112                                                         }
2113                                                 }
2114                                         }
2115                                         if (!musiconhold && (confflags & CONFFLAG_MOH)) {
2116                                                 conf_start_moh(chan, optargs[OPT_ARG_MOH_CLASS]);
2117                                                 musiconhold = 1;
2118                                         }
2119                                 } else if(currentmarked >= 1 && lastmarked == 0) {
2120                                         /* Marked user entered, so cancel timeout */
2121                                         timeout = 0;
2122                                         if (confflags & CONFFLAG_MONITOR)
2123                                                 ztc.confmode = ZT_CONF_CONFMON | ZT_CONF_LISTENER;
2124                                         else if (confflags & CONFFLAG_TALKER)
2125                                                 ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER;
2126                                         else
2127                                                 ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
2128                                         if (ioctl(fd, ZT_SETCONF, &ztc)) {
2129                                                 ast_log(LOG_WARNING, "Error setting conference\n");
2130                                                 close(fd);
2131                                                 goto outrun;
2132                                         }
2133                                         if (musiconhold && (confflags & CONFFLAG_MOH)) {
2134                                                 ast_moh_stop(chan);
2135                                                 musiconhold = 0;
2136                                         }
2137                                         if ( !(confflags & CONFFLAG_QUIET) && !(confflags & CONFFLAG_MARKEDUSER)) {
2138                                                 if (!ast_streamfile(chan, "conf-placeintoconf", chan->language))
2139                                                         ast_waitstream(chan, "");
2140                                                 conf_play(chan, conf, ENTER);
2141                                         }
2142                                 }
2143                         }
2144
2145                         /* trying to add moh for single person conf */
2146                         if ((confflags & CONFFLAG_MOH) && !(confflags & CONFFLAG_WAITMARKED)) {
2147                                 if (conf->users == 1) {
2148                                         if (!musiconhold) {
2149                                                 conf_start_moh(chan, optargs[OPT_ARG_MOH_CLASS]);
2150                                                 musiconhold = 1;
2151                                         } 
2152                                 } else {
2153                                         if (musiconhold) {
2154                                                 ast_moh_stop(chan);
2155                                                 musiconhold = 0;
2156                                         }
2157                                 }
2158                         }
2159                         
2160                         /* Leave if the last marked user left */
2161                         if (currentmarked == 0 && lastmarked != 0 && (confflags & CONFFLAG_MARKEDEXIT)) {
2162                                 if (confflags & CONFFLAG_KICK_CONTINUE)
2163                                         ret = 0;
2164                                 else
2165                                         ret = -1;
2166                                 break;
2167                         }
2168         
2169                         /* Check if my modes have changed */
2170
2171                         /* If I should be muted but am still talker, mute me */
2172                         if ((user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)) && (ztc.confmode & ZT_CONF_TALKER)) {
2173                                 ztc.confmode ^= ZT_CONF_TALKER;
2174                                 if (ioctl(fd, ZT_SETCONF, &ztc)) {
2175                                         ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
2176                                         ret = -1;
2177                                         break;
2178                                 }
2179
2180                                 manager_event(EVENT_FLAG_CALL, "MeetmeMute", 
2181                                                 "Channel: %s\r\n"
2182                                                 "Uniqueid: %s\r\n"
2183                                                 "Meetme: %s\r\n"
2184                                                 "Usernum: %i\r\n"
2185                                                 "Status: on\r\n",
2186                                                 chan->name, chan->uniqueid, conf->confno, user->user_no);
2187                         }
2188
2189                         /* If I should be un-muted but am not talker, un-mute me */
2190                         if (!(user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)) && !(confflags & CONFFLAG_MONITOR) && !(ztc.confmode & ZT_CONF_TALKER)) {
2191                                 ztc.confmode |= ZT_CONF_TALKER;
2192                                 if (ioctl(fd, ZT_SETCONF, &ztc)) {
2193                                         ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
2194                                         ret = -1;
2195                                         break;
2196                                 }
2197
2198                                 manager_event(EVENT_FLAG_CALL, "MeetmeMute", 
2199                                                 "Channel: %s\r\n"
2200                                                 "Uniqueid: %s\r\n"
2201                                                 "Meetme: %s\r\n"
2202                                                 "Usernum: %i\r\n"
2203                                                 "Status: off\r\n",
2204                                                 chan->name, chan->uniqueid, conf->confno, user->user_no);
2205                         }
2206                         
2207                         if ((user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)) && 
2208                                 (user->adminflags & ADMINFLAG_T_REQUEST) && !(talkreq_manager)) {
2209                                 talkreq_manager = 1;
2210
2211                                 manager_event(EVENT_FLAG_CALL, "MeetmeTalkRequest", 
2212                                               "Channel: %s\r\n"
2213                                                               "Uniqueid: %s\r\n"
2214                                                               "Meetme: %s\r\n"
2215                                                               "Usernum: %i\r\n"
2216                                                               "Status: on\r\n",
2217                                                               chan->name, chan->uniqueid, conf->confno, user->user_no);
2218                         }
2219
2220                         
2221                         if (!(user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)) && 
2222                                 !(user->adminflags & ADMINFLAG_T_REQUEST) && (talkreq_manager)) {
2223                                 talkreq_manager = 0;
2224                                 manager_event(EVENT_FLAG_CALL, "MeetmeTalkRequest", 
2225                                               "Channel: %s\r\n"
2226                                                               "Uniqueid: %s\r\n"
2227                                                               "Meetme: %s\r\n"
2228                                                               "Usernum: %i\r\n"
2229                                                               "Status: off\r\n",
2230                                                              chan->name, chan->uniqueid, conf->confno, user->user_no);
2231                         }
2232                         
2233                         /* If I have been kicked, exit the conference */
2234                         if (user->adminflags & ADMINFLAG_KICKME) {
2235                                 //You have been kicked.
2236                                 if (!(confflags & CONFFLAG_QUIET) && 
2237                                         !ast_streamfile(chan, "conf-kicked", chan->language)) {
2238                                         ast_waitstream(chan, "");
2239                                 }
2240                                 ret = 0;
2241                                 break;
2242                         }
2243
2244                         /* Perform an extra hangup check just in case */
2245                         if (ast_check_hangup(chan))
2246                                 break;
2247
2248                         if (c) {
2249                                 if (c->fds[0] != origfd || (user->zapchannel && c->audiohooks)) {
2250                                         if (using_pseudo) {
2251                                                 /* Kill old pseudo */
2252                                                 close(fd);
2253                                                 using_pseudo = 0;
2254                                         }
2255                                         ast_debug(1, "Ooh, something swapped out under us, starting over\n");
2256                                         retryzap = (strcasecmp(c->tech->type, "Zap") || c->audiohooks ? 1 : 0);
2257                                         user->zapchannel = !retryzap;
2258                                         goto zapretry;
2259                                 }
2260                                 if ((confflags & CONFFLAG_MONITOR) || (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)))
2261                                         f = ast_read_noaudio(c);
2262                                 else
2263                                         f = ast_read(c);
2264                                 if (!f)
2265                                         break;
2266                                 if ((f->frametype == AST_FRAME_VOICE) && (f->subclass == AST_FORMAT_SLINEAR)) {
2267                                         if (user->talk.actual)
2268                                                 ast_frame_adjust_volume(f, user->talk.actual);
2269
2270                                         if (!(confflags & CONFFLAG_MONITOR)) {
2271                                                 int totalsilence;
2272
2273                                                 if (user->talking == -1)
2274                                                         user->talking = 0;
2275
2276                                                 res = ast_dsp_silence(dsp, f, &totalsilence);
2277                                                 if (!user->talking && totalsilence < MEETME_DELAYDETECTTALK) {
2278                                                         user->talking = 1;
2279                                                         if (confflags & CONFFLAG_MONITORTALKER)
2280                                                                 manager_event(EVENT_FLAG_CALL, "MeetmeTalking",
2281                                                                       "Channel: %s\r\n"
2282                                                                       "Uniqueid: %s\r\n"
2283                                                                       "Meetme: %s\r\n"
2284                                                                       "Usernum: %d\r\n"
2285                                                                       "Status: on\r\n",
2286                                                                       chan->name, chan->uniqueid, conf->confno, user->user_no);
2287                                                 }
2288                                                 if (user->talking && totalsilence > MEETME_DELAYDETECTENDTALK) {
2289                                                         user->talking = 0;
2290                                                         if (confflags & CONFFLAG_MONITORTALKER)
2291                                                                 manager_event(EVENT_FLAG_CALL, "MeetmeTalking",
2292                                                                       "Channel: %s\r\n"
2293                                                                       "Uniqueid: %s\r\n"
2294                                                                       "Meetme: %s\r\n"
2295                                                                       "Usernum: %d\r\n"
2296                                                                       "Status: off\r\n",
2297                                                                       chan->name, chan->uniqueid, conf->confno, user->user_no);
2298                                                 }
2299                                         }
2300                                         if (using_pseudo) {
2301                                                 /* Absolutely do _not_ use careful_write here...
2302                                                    it is important that we read data from the channel
2303                                                    as fast as it arrives, and feed it into the conference.
2304                                                    The buffering in the pseudo channel will take care of any
2305                                                    timing differences, unless they are so drastic as to lose
2306                                                    audio frames (in which case carefully writing would only
2307                                                    have delayed the audio even further).
2308                                                 */
2309                                                 /* As it turns out, we do want to use careful write.  We just
2310                                                    don't want to block, but we do want to at least *try*
2311                                                    to write out all the samples.
2312                                                  */
2313                                                 if (user->talking)
2314                                                         careful_write(fd, f->data, f->datalen, 0);
2315                                         }
2316                                 } else if ((f->frametype == AST_FRAME_DTMF) && (confflags & CONFFLAG_EXIT_CONTEXT)) {
2317                                         char tmp[2];
2318
2319                                         if (confflags & CONFFLAG_PASS_DTMF)
2320                                                 conf_queue_dtmf(conf, user, f);
2321
2322                                         tmp[0] = f->subclass;
2323                                         tmp[1] = '\0';
2324                                         if (!ast_goto_if_exists(chan, exitcontext, tmp, 1)) {
2325                                                 ast_debug(1, "Got DTMF %c, goto context %s\n", tmp[0], exitcontext);
2326                                                 ret = 0;
2327                                                 ast_frfree(f);
2328                                                 break;
2329                                         } else {
2330                                                 ast_debug(2, "Exit by single digit did not work in meetme. Extension %s does not exist in context %s\n", tmp, exitcontext);
2331                                         }
2332                                 } else if ((f->frametype == AST_FRAME_DTMF) && (confflags & CONFFLAG_KEYEXIT) && (strchr(exitkeys, f->subclass))) {
2333                                         char exitkey[2];
2334
2335                                         exitkey[0] = f->subclass;
2336                                         exitkey[1] = '\0';
2337                                         
2338                                         pbx_builtin_setvar_helper(chan, "MEETME_EXIT_KEY", exitkey);
2339                                                 
2340                                         if (confflags & CONFFLAG_PASS_DTMF)
2341                                                 conf_queue_dtmf(conf, user, f);
2342                                         ret = 0;
2343                                         ast_frfree(f);
2344                                         break;
2345                                 } else if (((f->frametype == AST_FRAME_DTMF) && (f->subclass == '*') && (confflags & CONFFLAG_STARMENU)) || ((f->frametype == AST_FRAME_DTMF) && menu_active)) {
2346                                         if (confflags & CONFFLAG_PASS_DTMF)
2347                                                 conf_queue_dtmf(conf, user, f);
2348                                         if (ioctl(fd, ZT_SETCONF, &ztc_empty)) {
2349                                                 ast_log(LOG_WARNING, "Error setting conference\n");
2350                                                 close(fd);
2351                                                 ast_frfree(f);
2352                                                 goto outrun;
2353                                         }
2354
2355                                         /* if we are entering the menu, and the user has a channel-driver
2356                                            volume adjustment, clear it
2357                                         */
2358                                         if (!menu_active && user->talk.desired && !user->talk.actual)
2359                                                 set_talk_volume(user, 0);
2360
2361                                         if (musiconhold) {
2362                                                 ast_moh_stop(chan);
2363                                         }
2364                                         if ((confflags & CONFFLAG_ADMIN)) {
2365                                                 /* Admin menu */
2366                                                 if (!menu_active) {
2367                                                         menu_active = 1;
2368                                                         /* Record this sound! */
2369                                                         if (!ast_streamfile(chan, "conf-adminmenu", chan->language)) {
2370                                                                 dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
2371                                                                 ast_stopstream(chan);
2372                                                         } else 
2373                                                                 dtmf = 0;
2374                                                 } else 
2375                                                         dtmf = f->subclass;
2376                                                 if (dtmf) {
2377                                                         switch(dtmf) {
2378                                                         case '1': /* Un/Mute */
2379                                                                 menu_active = 0;
2380
2381                                                                 /* for admin, change both admin and use flags */
2382                                                                 if (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED))
2383                                                                         user->adminflags &= ~(ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED);
2384                                                                 else
2385                                                                         user->adminflags |= (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED);
2386
2387                                                                 if ((confflags & CONFFLAG_MONITOR) || (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED))) {
2388                                                                         if (!ast_streamfile(chan, "conf-muted", chan->language))
2389                                                                                 ast_waitstream(chan, "");
2390                                                                 } else {
2391                                                                         if (!ast_streamfile(chan, "conf-unmuted", chan->language))
2392                                                                                 ast_waitstream(chan, "");
2393                                                                 }
2394                                                                 break;
2395                                                         case '2': /* Un/Lock the Conference */
2396                                                                 menu_active = 0;
2397                                                                 if (conf->locked) {
2398                                                                         conf->locked = 0;
2399                                                                         if (!ast_streamfile(chan, "conf-unlockednow", chan->language))
2400                                                                                 ast_waitstream(chan, "");
2401                                                                 } else {
2402                                                                         conf->locked = 1;
2403                                                                         if (!ast_streamfile(chan, "conf-lockednow", chan->language))
2404                                                                                 ast_waitstream(chan, "");
2405                                                                 }
2406                                                                 break;
2407                                                         case '3': /* Eject last user */
2408                                                                 menu_active = 0;
2409                                                                 usr = AST_LIST_LAST(&conf->userlist);
2410                                                                 if ((usr->chan->name == chan->name)||(usr->userflags & CONFFLAG_ADMIN)) {
2411                                                                         if(!ast_streamfile(chan, "conf-errormenu", chan->language))
2412                                                                                 ast_waitstream(chan, "");
2413                                                                 } else 
2414                                                                         usr->adminflags |= ADMINFLAG_KICKME;
2415                                                                 ast_stopstream(chan);
2416                                                                 break;  
2417                                                         case '4':
2418                                                                 tweak_listen_volume(user, VOL_DOWN);
2419                                                                 break;
2420                                                         case '6':
2421                                                                 tweak_listen_volume(user, VOL_UP);
2422                                                                 break;
2423                                                         case '7':
2424                                                                 tweak_talk_volume(user, VOL_DOWN);
2425                                                                 break;
2426                                                         case '8':
2427                                                                 menu_active = 0;
2428                                                                 break;
2429                                                         case '9':
2430                                                                 tweak_talk_volume(user, VOL_UP);
2431                                                                 break;
2432                                                         default:
2433                                                                 menu_active = 0;
2434                                                                 /* Play an error message! */
2435                                                                 if (!ast_streamfile(chan, "conf-errormenu", chan->language))
2436                                                                         ast_waitstream(chan, "");
2437                                                                 break;
2438                                                         }
2439                                                 }
2440                                         } else {
2441                                                 /* User menu */
2442                                                 if (!menu_active) {
2443                                                         menu_active = 1;
2444                                                         if (!ast_streamfile(chan, "conf-usermenu", chan->language)) {
2445                                                                 dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
2446                                                                 ast_stopstream(chan);
2447                                                         } else
2448                                                                 dtmf = 0;
2449                                                 } else 
2450                                                         dtmf = f->subclass;
2451                                                 if (dtmf) {
2452                                                         switch(dtmf) {
2453                                                         case '1': /* Un/Mute */
2454                                                                 menu_active = 0;
2455
2456                                                                 /* user can only toggle the self-muted state */
2457                                                                 user->adminflags ^= ADMINFLAG_SELFMUTED;
2458
2459                                                                 /* they can't override the admin mute state */
2460                                                                 if ((confflags & CONFFLAG_MONITOR) || (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED))) {
2461                                                                         if (!ast_streamfile(chan, "conf-muted", chan->language))
2462                                                                                 ast_waitstream(chan, "");
2463                                                                 } else {
2464                                                                         if (!ast_streamfile(chan, "conf-unmuted", chan->language))
2465                                                                                 ast_waitstream(chan, "");
2466                                                                 }
2467                                                                 break;
2468                                                         case '2':
2469                                                                 menu_active = 0;
2470                                                                 if (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED))
2471                                                                         user->adminflags |= ADMINFLAG_T_REQUEST;
2472                                                                         
2473                                                                 if (user->adminflags & ADMINFLAG_T_REQUEST)
2474                                                                         if (!ast_streamfile(chan, "beep", chan->language))
2475                                                                                 ast_waitstream(chan, "");
2476                                                                 break;
2477                                                         case '4':
2478                                                                 tweak_listen_volume(user, VOL_DOWN);
2479                                                                 break;
2480                                                         case '6':
2481                                                                 tweak_listen_volume(user, VOL_UP);
2482                                                                 break;
2483                                                         case '7':
2484                                                                 tweak_talk_volume(user, VOL_DOWN);
2485                                                                 break;
2486                                                         case '8':
2487                                                                 menu_active = 0;
2488                                                                 break;
2489                                                         case '9':
2490                                                                 tweak_talk_volume(user, VOL_UP);
2491                                                                 break;
2492                                                         default:
2493                                                                 menu_active = 0;
2494                                                                 if (!ast_streamfile(chan, "conf-errormenu", chan->language))
2495                                                                         ast_waitstream(chan, "");
2496                                                                 break;
2497                                                         }
2498                                                 }
2499                                         }
2500                                         if (musiconhold)
2501                                                 conf_start_moh(chan, optargs[OPT_ARG_MOH_CLASS]);
2502
2503                                         if (ioctl(fd, ZT_SETCONF, &ztc)) {
2504                                                 ast_log(LOG_WARNING, "Error setting conference\n");
2505                                                 close(fd);
2506                                                 ast_frfree(f);
2507                                                 goto outrun;
2508                                         }
2509
2510                                         conf_flush(fd, chan);
2511                                 } else if ((f->frametype == AST_FRAME_DTMF_BEGIN || f->frametype == AST_FRAME_DTMF_END)
2512                                         && confflags & CONFFLAG_PASS_DTMF) {
2513                                         conf_queue_dtmf(conf, user, f);
2514                                 } else if ((confflags & CONFFLAG_SLA_STATION) && f->frametype == AST_FRAME_CONTROL) {
2515                                         switch (f->subclass) {
2516                                         case AST_CONTROL_HOLD:
2517                                                 sla_queue_event_conf(SLA_EVENT_HOLD, chan, conf);
2518                                                 break;
2519                                         default:
2520                                                 break;
2521                                         }
2522                                 } else if (f->frametype == AST_FRAME_NULL) {
2523                                         /* Ignore NULL frames. It is perfectly normal to get these if the person is muted. */
2524                                 } else {
2525                                         ast_debug(1, 
2526                                                 "Got unrecognized frame on channel %s, f->frametype=%d,f->subclass=%d\n",
2527                                                 chan->name, f->frametype, f->subclass);
2528                                 }
2529                                 ast_frfree(f);
2530                         } else if (outfd > -1) {
2531                                 res = read(outfd, buf, CONF_SIZE);
2532                                 if (res > 0) {
2533                                         memset(&fr, 0, sizeof(fr));
2534                                         fr.frametype = AST_FRAME_VOICE;
2535                                         fr.subclass = AST_FORMAT_SLINEAR;
2536                                         fr.datalen = res;
2537                                         fr.samples = res/2;
2538                                         fr.data = buf;
2539                                         fr.offset = AST_FRIENDLY_OFFSET;
2540                                         if ( !user->listen.actual && 
2541                                                 ((confflags & CONFFLAG_MONITOR) || 
2542                                                  (user->adminflags & (ADMINFLAG_MUTED | ADMINFLAG_SELFMUTED)) ||
2543                                                  (!user->talking)) ) {
2544                                                 int index;
2545                                                 for (index=0;index<AST_FRAME_BITS;index++)
2546                                                         if (chan->rawwriteformat & (1 << index))
2547                                                                 break;
2548                                                 if (index >= AST_FRAME_BITS)
2549                                                         goto bailoutandtrynormal;
2550                                                 ast_mutex_lock(&conf->listenlock);
2551                                                 if (!conf->transframe[index]) {
2552                                                         if (conf->origframe) {
2553                                                                 if (!conf->transpath[index])
2554                                                                         conf->transpath[index] = ast_translator_build_path((1 << index), AST_FORMAT_SLINEAR);
2555                                                                 if (conf->transpath[index]) {
2556                                                                         conf->transframe[index] = ast_translate(conf->transpath[index], conf->origframe, 0);
2557                                                                         if (!conf->transframe[index])
2558                                                                                 conf->transframe[index] = &ast_null_frame;
2559                                                                 }
2560                                                         }
2561                                                 }
2562                                                 if (conf->transframe[index]) {
2563                                                         if (conf->transframe[index]->frametype != AST_FRAME_NULL) {
2564                                                                 if (ast_write(chan, conf->transframe[index]))
2565                                                                         ast_log(LOG_WARNING, "Unable to write frame to channel %s\n", chan->name);
2566                                                         }
2567                                                 } else {
2568                                                         ast_mutex_unlock(&conf->listenlock);
2569                                                         goto bailoutandtrynormal;
2570                                                 }
2571                                                 ast_mutex_unlock(&conf->listenlock);
2572                                         } else {
2573 bailoutandtrynormal:                                    
2574                                                 if (user->listen.actual)
2575                                                         ast_frame_adjust_volume(&fr, user->listen.actual);
2576                                                 if (ast_write(chan, &fr) < 0) {
2577                                                         ast_log(LOG_WARNING, "Unable to write frame to channel %s\n", chan->name);
2578                                                 }
2579                                         }
2580                                 } else 
2581                                         ast_log(LOG_WARNING, "Failed to read frame: %s\n", strerror(errno));
2582                         }
2583                         lastmarked = currentmarked;
2584                 }
2585         }
2586
2587         if (musiconhold)
2588                 ast_moh_stop(chan);
2589         
2590         if (using_pseudo)
2591                 close(fd);
2592         else {
2593                 /* Take out of conference */
2594                 ztc.chan = 0;   
2595                 ztc.confno = 0;
2596                 ztc.confmode = 0;
2597                 if (ioctl(fd, ZT_SETCONF, &ztc)) {
2598                         ast_log(LOG_WARNING, "Error setting conference\n");
2599                 }
2600         }
2601
2602         reset_volumes(user);
2603
2604         AST_LIST_LOCK(&confs);
2605         if (!(confflags & CONFFLAG_QUIET) && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN))
2606                 conf_play(chan, conf, LEAVE);
2607
2608         if (!(confflags & CONFFLAG_QUIET) && ((confflags & CONFFLAG_INTROUSER) || (confflags & CONFFLAG_INTROUSERNOREVIEW))) {
2609                 if (ast_fileexists(user->namerecloc, NULL, NULL)) {
2610                         if ((conf->chan) && (conf->users > 1)) {
2611                                 if (!ast_streamfile(conf->chan, user->namerecloc, chan->language))
2612                                         ast_waitstream(conf->chan, "");
2613                                 if (!ast_streamfile(conf->chan, "conf-hasleft", chan->language))
2614                                         ast_waitstream(conf->chan, "");
2615                         }
2616                         ast_filedelete(user->namerecloc, NULL);
2617                 }
2618         }
2619         AST_LIST_UNLOCK(&confs);
2620
2621  outrun:
2622         AST_LIST_LOCK(&confs);
2623
2624         if (dsp)
2625                 ast_dsp_free(dsp);
2626         
2627         if (user->user_no) { /* Only cleanup users who really joined! */
2628                 now = ast_tvnow();
2629                 hr = (now.tv_sec - user->jointime) / 3600;
2630                 min = ((now.tv_sec - user->jointime) % 3600) / 60;
2631                 sec = (now.tv_sec - user->jointime) % 60;
2632
2633                 if (sent_event) {
2634                         manager_event(EVENT_FLAG_CALL, "MeetmeLeave",
2635                                       "Channel: %s\r\n"
2636                                       "Uniqueid: %s\r\n"
2637                                       "Meetme: %s\r\n"
2638                                       "Usernum: %d\r\n"
2639                                       "CallerIDNum: %s\r\n"
2640                                       "CallerIDName: %s\r\n"
2641                                       "Duration: %ld\r\n",
2642                                       chan->name, chan->uniqueid, conf->confno, 
2643                                       user->user_no,
2644                                       S_OR(user->chan->cid.cid_num, "<unknown>"),
2645                                       S_OR(user->chan->cid.cid_name, "<unknown>"),
2646                                       (long)(now.tv_sec - user->jointime));
2647                 }
2648
2649                 conf->users--;
2650                 if (rt_log_members){
2651                         /* Update table */
2652                         snprintf(members, sizeof(members), "%d", conf->users);
2653                         ast_update_realtime("meetme", "confno", conf->confno, "members", members, NULL);
2654                 }
2655                 if (confflags & CONFFLAG_MARKEDUSER) 
2656                         conf->markedusers--;
2657                 /* Remove ourselves from the list */
2658                 AST_LIST_REMOVE(&conf->userlist, user, list);
2659
2660                 /* Change any states */
2661                 if (!conf->users)
2662                         ast_devstate_changed(AST_DEVICE_NOT_INUSE, "meetme:%s", conf->confno);
2663                 
2664                 /* Return the number of seconds the user was in the conf */
2665                 snprintf(meetmesecs, sizeof(meetmesecs), "%d", (int) (time(NULL) - user->jointime));
2666                 pbx_builtin_setvar_helper(chan, "MEETMESECS", meetmesecs);
2667         }
2668         ast_free(user);
2669         AST_LIST_UNLOCK(&confs);
2670
2671         return ret;
2672 }
2673
2674 static struct ast_conference *find_conf_realtime(struct ast_channel *chan, char *confno, int make, int dynamic,
2675                                 char *dynamic_pin, size_t pin_buf_len, int refcount, struct ast_flags *confflags,
2676                                 char *optargs[], int *too_early)
2677 {
2678         struct ast_variable *var;
2679         struct ast_conference *cnf;
2680
2681         *too_early = 0;
2682
2683         /* Check first in the conference list */
2684         AST_LIST_LOCK(&confs);
2685         AST_LIST_TRAVERSE(&confs, cnf, list) {
2686                 if (!strcmp(confno, cnf->confno)) 
2687                         break;
2688         }
2689         if (cnf) {
2690                 cnf->refcount += refcount;
2691         }
2692         AST_LIST_UNLOCK(&confs);
2693
2694         if (!cnf) {
2695                 char *pin = NULL, *pinadmin = NULL; /* For temp use */
2696                 int maxusers = 0;
2697                 struct timeval now;
2698                 char currenttime[19] = "";
2699                 char startTime[19] = "";
2700                 char endtime[19] = "";
2701                 char eatime[19] = "";
2702                 char userOpts[32] = "";
2703                 char adminOpts[32] = "";
2704                 struct ast_tm tm, etm;
2705
2706                 if (rt_schedule){
2707                         now = ast_tvnow();
2708
2709                         if (fuzzystart)
2710                                 now.tv_sec += fuzzystart;
2711
2712                         ast_localtime(&now, &tm, NULL);
2713                         ast_strftime(currenttime, sizeof(currenttime), DATE_FORMAT, &tm);
2714
2715                         if (earlyalert){
2716        &nb