fix various coding guidelines issues (issue #7345, with additional changes)
[asterisk/asterisk.git] / channels / chan_jingle.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2005, Digium, Inc.
5  *
6  * Matt O'Gorman <mogorman@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /*! \file
20  *
21  * \author Matt O'Gorman <mogorman@digium.com>
22  *
23  * \brief Jingle Channel Driver
24  * 
25  * \ingroup channel_drivers
26  */
27
28 /*** MODULEINFO
29         <depend>iksemel</depend>
30  ***/
31
32 #include "asterisk.h"
33
34 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
35
36 #include <stdlib.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <unistd.h>
40 #include <sys/socket.h>
41 #include <errno.h>
42 #include <stdlib.h>
43 #include <fcntl.h>
44 #include <netdb.h>
45 #include <netinet/in.h>
46 #include <arpa/inet.h>
47 #include <sys/signal.h>
48 #include <iksemel.h>
49
50 #include "asterisk/lock.h"
51 #include "asterisk/channel.h"
52 #include "asterisk/config.h"
53 #include "asterisk/logger.h"
54 #include "asterisk/module.h"
55 #include "asterisk/pbx.h"
56 #include "asterisk/options.h"
57 #include "asterisk/lock.h"
58 #include "asterisk/sched.h"
59 #include "asterisk/io.h"
60 #include "asterisk/rtp.h"
61 #include "asterisk/acl.h"
62 #include "asterisk/callerid.h"
63 #include "asterisk/file.h"
64 #include "asterisk/cli.h"
65 #include "asterisk/app.h"
66 #include "asterisk/musiconhold.h"
67 #include "asterisk/manager.h"
68 #include "asterisk/stringfields.h"
69 #include "asterisk/utils.h"
70 #include "asterisk/causes.h"
71 #include "asterisk/astobj.h"
72 #include "asterisk/abstract_jb.h"
73 #include "asterisk/jabber.h"
74 #include "asterisk/jingle.h"
75
76 #define JINGLE_CONFIG "jingle.conf"
77
78 /*! Global jitterbuffer configuration - by default, jb is disabled */
79 static struct ast_jb_conf default_jbconf =
80 {
81         .flags = 0,
82         .max_size = -1,
83         .resync_threshold = -1,
84         .impl = ""
85 };
86 static struct ast_jb_conf global_jbconf;
87
88 enum jingle_protocol {
89         AJI_PROTOCOL_UDP = 1,
90         AJI_PROTOCOL_SSLTCP = 2,
91 };
92
93 enum jingle_connect_type {
94         AJI_CONNECT_STUN = 1,
95         AJI_CONNECT_LOCAL = 2,
96         AJI_CONNECT_RELAY = 3,
97 };
98
99 struct jingle_pvt {
100         ast_mutex_t lock;               /* Channel private lock */
101         time_t laststun;
102         struct jingle *parent;  /* Parent client */
103         char sid[100];
104         char from[100];
105         char ring[10];                  /* Message ID of ring */
106         iksrule *ringrule;              /* Rule for matching RING request */
107         int initiator;                  /* If we're the initiator */
108         int alreadygone;
109         int capability;
110         struct ast_codec_pref prefs;
111         struct jingle_candidate *theircandidates;
112         struct jingle_candidate *ourcandidates;
113         char cid_num[80];               /*!< Caller ID num */
114         char cid_name[80];              /*!< Caller ID name */
115         char exten[80];         /* Called extension */
116         struct ast_channel *owner;      /* Master Channel */
117         struct ast_rtp *rtp;    /*!< RTP Session */
118         struct ast_rtp *vrtp;
119         int jointcapability;    /*!< Supported capability at both ends (codecs ) */
120         int peercapability;
121         struct jingle_pvt *next;        /* Next entity */
122 };
123
124 struct jingle_candidate {
125         char name[100];
126         enum jingle_protocol protocol;
127         double preference;
128         char username[100];
129         char password[100];
130         enum jingle_connect_type type;
131         char network[6];
132         int generation;
133         char ip[16];
134         int port;
135         int receipt;
136         struct jingle_candidate *next;
137 };
138
139 struct jingle {
140         ASTOBJ_COMPONENTS(struct jingle);
141         struct aji_client *connection;
142         struct aji_buddy *buddy;
143         struct jingle_pvt *p;
144         struct ast_codec_pref prefs;
145         int amaflags;                   /*!< AMA Flags */
146         char user[100];
147         char context[100];
148         char accountcode[AST_MAX_ACCOUNT_CODE]; /* Account code */
149         int capability;
150         ast_group_t callgroup;  /*!< Call group */
151         ast_group_t pickupgroup;        /*!< Pickup group */
152         int callingpres;                /*!< Calling presentation */
153         int allowguest;
154         char language[MAX_LANGUAGE];    /*!<  Default language for prompts */
155         char musicclass[MAX_MUSICCLASS];        /*!<  Music on Hold class */
156 };
157
158 struct jingle_container {
159         ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
160 };
161
162 static const char desc[] = "Jingle Channel";
163 static const char type[] = "Jingle";
164 static const char tdesc[] = "Jingle Channel Driver";
165
166 static int usecnt = 0;
167 AST_MUTEX_DEFINE_STATIC(usecnt_lock);
168
169
170 static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263;
171
172 /* Protect the interface list (of sip_pvt's) */
173 AST_MUTEX_DEFINE_STATIC(jinglelock);
174
175 static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause);
176 static int jingle_digit(struct ast_channel *ast, char digit);
177 static int jingle_call(struct ast_channel *ast, char *dest, int timeout);
178 static int jingle_hangup(struct ast_channel *ast);
179 static int jingle_answer(struct ast_channel *ast);
180 static int jingle_newcall(struct jingle *client, ikspak *pak);
181 static struct ast_frame *jingle_read(struct ast_channel *ast);
182 static int jingle_write(struct ast_channel *ast, struct ast_frame *f);
183 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
184 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
185 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
186 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid);
187
188 /* PBX interface structure for channel registration */
189 static const struct ast_channel_tech jingle_tech = {
190         .type = type,
191         .description = tdesc,
192         .capabilities = ((AST_FORMAT_MAX_AUDIO << 1) - 1),
193         .requester = jingle_request,
194         .send_digit = jingle_digit,
195         .bridge = ast_rtp_bridge,
196         .call = jingle_call,
197         .hangup = jingle_hangup,
198         .answer = jingle_answer,
199         .read = jingle_read,
200         .write = jingle_write,
201         .exception = jingle_read,
202         .indicate = jingle_indicate,
203         .fixup = jingle_fixup,
204         .send_html = jingle_sendhtml,
205         .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
206 };
207
208 static struct sockaddr_in bindaddr = { 0, };    /*!< The address we bind to */
209
210 static struct sched_context *sched;     /*!< The scheduling context */
211 static struct io_context *io;   /*!< The IO context */
212 static struct in_addr __ourip;
213 /*----- RTP interface functions */
214 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp,
215                                                            struct ast_rtp *vrtp, int codecs, int nat_active);
216 static struct ast_rtp *jingle_get_rtp_peer(struct ast_channel *chan);
217 static int jingle_get_codec(struct ast_channel *chan);
218
219 static struct ast_rtp_protocol jingle_rtp = {
220         type: "jingle",
221         get_rtp_info: jingle_get_rtp_peer,
222         set_rtp_peer: jingle_set_rtp_peer,
223         get_codec: jingle_get_codec,
224 };
225
226 static char externip[16];
227
228 static struct jingle_container jingles;
229
230 static void jingle_member_destroy(struct jingle *obj)
231 {
232         free(obj);
233 }
234
235 static struct jingle *find_jingle(char *name, char *connection)
236 {
237         struct jingle *jingle = NULL;
238
239         jingle = ASTOBJ_CONTAINER_FIND(&jingles, name);
240         if (!jingle && strchr(name, '@'))
241                 jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingles, name, user,,, strcasecmp);
242
243         if (!jingle) {                          /* guest call */
244                 ASTOBJ_CONTAINER_TRAVERSE(&jingles, 1, {
245                         ASTOBJ_WRLOCK(iterator);
246                         if (!strcasecmp(iterator->name, "guest")) {
247                                 if (!strcasecmp(iterator->connection->jid->partial, connection)) {
248                                         jingle = iterator;
249                                         break;
250                                 } else if (!strcasecmp(iterator->connection->name, connection)) {
251                                         jingle = iterator;
252                                         break;
253                                 }
254                         }
255                         ASTOBJ_UNLOCK(iterator);
256                 });
257
258         }
259         return jingle;
260 }
261
262
263 static void add_codec_to_answer(const struct jingle_pvt *p, int codec, iks *dcodecs)
264 {
265         if (!strcasecmp("ulaw", ast_getformatname(codec))) {
266                 iks *payload_eg711u, *payload_pcmu;
267                 payload_pcmu = iks_new("payload-type");
268                 iks_insert_attrib(payload_pcmu, "id", "0");
269                 iks_insert_attrib(payload_pcmu, "name", "PCMU");
270                 iks_insert_attrib(payload_pcmu, "xmlns", "http://www.google.com/session/phone");
271                 payload_eg711u = iks_new("payload-type");
272                 iks_insert_attrib(payload_eg711u, "id", "100");
273                 iks_insert_attrib(payload_eg711u, "name", "EG711U");
274                 iks_insert_attrib(payload_eg711u, "xmlns", "http://www.google.com/session/phone");
275                 iks_insert_node(dcodecs, payload_pcmu);
276                 iks_insert_node(dcodecs, payload_eg711u);
277         }
278         if (!strcasecmp("alaw", ast_getformatname(codec))) {
279                 iks *payload_eg711a, *payload_pcma;
280                 payload_pcma = iks_new("payload-type");
281                 iks_insert_attrib(payload_pcma, "id", "8");
282                 iks_insert_attrib(payload_pcma, "name", "PCMA");
283                 iks_insert_attrib(payload_pcma, "xmlns", "http://www.google.com/session/phone");
284                 payload_eg711a = iks_new("payload-type");
285                 iks_insert_attrib(payload_eg711a, "id", "101");
286                 iks_insert_attrib(payload_eg711a, "name", "EG711A");
287                 iks_insert_attrib(payload_eg711a, "xmlns", "http://www.google.com/session/phone");
288                 iks_insert_node(dcodecs, payload_pcma);
289                 iks_insert_node(dcodecs, payload_eg711a);
290         }
291         if (!strcasecmp("ilbc", ast_getformatname(codec))) {
292                 iks *payload_ilbc;
293                 payload_ilbc = iks_new("payload-type");
294                 iks_insert_attrib(payload_ilbc, "id", "102");
295                 iks_insert_attrib(payload_ilbc, "name", "iLBC");
296                 iks_insert_attrib(payload_ilbc, "xmlns", "http://www.google.com/session/phone");
297                 iks_insert_node(dcodecs, payload_ilbc);
298         }
299         if (!strcasecmp("g723", ast_getformatname(codec))) {
300                 iks *payload_g723;
301                 payload_g723 = iks_new("payload-type");
302                 iks_insert_attrib(payload_g723, "id", "4");
303                 iks_insert_attrib(payload_g723, "name", "G723");
304                 iks_insert_attrib(payload_g723, "xmlns", "http://www.google.com/session/phone");
305                 iks_insert_node(dcodecs, payload_g723);
306         }
307         ast_rtp_lookup_code(p->rtp, 1, codec);
308 }
309
310 static int jingle_accept_call(struct jingle *client, struct jingle_pvt *p)
311 {
312         struct jingle_pvt *tmp = client->p;
313         struct aji_client *c = client->connection;
314         iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
315         int x;
316         int pref_codec = 0;
317         int alreadysent = 0;
318
319         if (p->initiator)
320                 return 1;
321
322         iq = iks_new("iq");
323         jingle = iks_new(GOOGLE_NODE);
324         dcodecs = iks_new("description");
325         if (iq && jingle && dcodecs) {
326                 iks_insert_attrib(dcodecs, "xmlns", "http://www.google.com/session/phone");
327
328                 for (x = 0; x < 32; x++) {
329                         if (!(pref_codec = ast_codec_pref_index(&client->prefs, x)))
330                                 break;
331                         if (!(client->capability & pref_codec))
332                                 continue;
333                         if (alreadysent & pref_codec)
334                                 continue;
335                         if (pref_codec <= AST_FORMAT_MAX_AUDIO)
336                                 add_codec_to_answer(p, pref_codec, dcodecs);
337                         else
338                                 add_codec_to_answer(p, pref_codec, dcodecs);
339                         alreadysent |= pref_codec;
340                 }
341                 payload_red = iks_new("payload-type");
342                 iks_insert_attrib(payload_red, "id", "117");
343                 iks_insert_attrib(payload_red, "name", "red");
344                 iks_insert_attrib(payload_red, "xmlns", "http://www.google.com/session/phone");
345                 payload_audio = iks_new("payload-type");
346                 iks_insert_attrib(payload_audio, "id", "106");
347                 iks_insert_attrib(payload_audio, "name", "audio/telephone-event");
348                 iks_insert_attrib(payload_audio, "xmlns", "http://www.google.com/session/phone");
349                 payload_cn = iks_new("payload-type");
350                 iks_insert_attrib(payload_cn, "id", "13");
351                 iks_insert_attrib(payload_cn, "name", "CN");
352                 iks_insert_attrib(payload_cn, "xmlns", "http://www.google.com/session/phone");
353
354
355                 iks_insert_attrib(iq, "type", "set");
356                 iks_insert_attrib(iq, "to", (p->from) ? p->from : client->user);
357                 iks_insert_attrib(iq, "id", client->connection->mid);
358                 ast_aji_increment_mid(client->connection->mid);
359
360                 iks_insert_attrib(jingle, "xmlns", "http://www.google.com/session");
361                 iks_insert_attrib(jingle, "type", JINGLE_ACCEPT);
362                 iks_insert_attrib(jingle, "initiator",
363                                                   p->initiator ? client->connection->jid->full : p->from);
364                 iks_insert_attrib(jingle, GOOGLE_SID, tmp->sid);
365                 iks_insert_node(iq, jingle);
366                 iks_insert_node(jingle, dcodecs);
367                 iks_insert_node(dcodecs, payload_red);
368                 iks_insert_node(dcodecs, payload_audio);
369                 iks_insert_node(dcodecs, payload_cn);
370
371                 iks_send(c->p, iq);
372                 iks_delete(payload_red);
373                 iks_delete(payload_audio);
374                 iks_delete(payload_cn);
375                 iks_delete(dcodecs);
376                 iks_delete(jingle);
377                 iks_delete(iq);
378         }
379         return 1;
380 }
381
382 static int jingle_ringing_ack(void *data, ikspak *pak)
383 {
384         struct jingle_pvt *p = data;
385         if (p->ringrule)
386                 iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
387         p->ringrule = NULL;
388         if (p->owner)
389                 ast_queue_control(p->owner, AST_CONTROL_RINGING);
390         return IKS_FILTER_EAT;
391 }
392
393 static int jingle_answer(struct ast_channel *ast)
394 {
395         struct jingle_pvt *p = ast->tech_pvt;
396         struct jingle *client = p->parent;
397         int res = 0;
398         ast_log(LOG_DEBUG, "Answer!\n");
399         ast_mutex_lock(&p->lock);
400         jingle_accept_call(client, p);
401         ast_mutex_unlock(&p->lock);
402         return res;
403 }
404
405 static struct ast_rtp *jingle_get_rtp_peer(struct ast_channel *chan)
406 {
407         struct jingle_pvt *p;
408         struct ast_rtp *rtp = NULL;
409         p = chan->tech_pvt;
410         if (!p)
411                 return NULL;
412         ast_mutex_lock(&p->lock);
413         if (p->rtp)
414                 rtp = p->rtp;
415         ast_mutex_unlock(&p->lock);
416         return rtp;
417 }
418
419 static int jingle_get_codec(struct ast_channel *chan)
420 {
421         struct jingle_pvt *p = chan->tech_pvt;
422         return p->peercapability;
423 }
424
425 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
426 {
427         struct jingle_pvt *p;
428
429         p = chan->tech_pvt;
430         if (!p)
431                 return -1;
432         ast_mutex_lock(&p->lock);
433
434 /*      if (rtp)
435                 ast_rtp_get_peer(rtp, &p->redirip);
436         else
437                 memset(&p->redirip, 0, sizeof(p->redirip));
438         p->redircodecs = codecs; */
439
440         /* Reset lastrtprx timer */
441         ast_mutex_unlock(&p->lock);
442         return 0;
443 }
444
445 static int jingle_response(struct jingle *client, ikspak *pak, const char *reasonstr)
446 {
447         iks *response, *error = NULL, *reason = NULL;
448         int res = -1;
449
450         response = iks_new("iq");
451         if (response) {
452                 iks_insert_attrib(response, "type", "result");
453                 iks_insert_attrib(response, "from", client->connection->jid->full);
454                 iks_insert_attrib(response, "to", iks_find_attrib(pak->x, "from"));
455                 iks_insert_attrib(response, "id", iks_find_attrib(pak->x, "id"));
456                 if (reasonstr) {
457                         error = iks_new("error");
458                         if (error) {
459                                 iks_insert_attrib(error, "type", "cancel");
460                                 reason = iks_new(reasonstr);
461                                 if (reason)
462                                         iks_insert_node(error, reason);
463                                 iks_insert_node(response, error);
464                         }
465                 }
466                 iks_send(client->connection->p, response);
467                 if (reason)
468                         iks_delete(reason);
469                 if (error)
470                         iks_delete(error);
471                 iks_delete(response);
472                 res = 0;
473         }
474         return res;
475 }
476
477 static int jingle_is_answered(struct jingle *client, ikspak *pak)
478 {
479         struct jingle_pvt *tmp;
480
481         ast_log(LOG_DEBUG, "The client is %s\n", client->name);
482         /* Make sure our new call doesn't exist yet */
483         for (tmp = client->p; tmp; tmp = tmp->next) {
484                 if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid))
485                         break;
486         }
487
488         if (tmp) {
489                 if (tmp->owner)
490                         ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
491         } else
492                 ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
493         jingle_response(client, pak, NULL);
494         return 1;
495 }
496
497 static int jingle_hangup_farend(struct jingle *client, ikspak *pak)
498 {
499         struct jingle_pvt *tmp;
500
501         ast_log(LOG_DEBUG, "The client is %s\n", client->name);
502         /* Make sure our new call doesn't exist yet */
503         for (tmp = client->p; tmp; tmp = tmp->next) {
504                 if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid))
505                         break;
506         }
507
508         if (tmp) {
509                 tmp->alreadygone = 1;
510                 ast_queue_hangup(tmp->owner);
511         } else
512                 ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
513         jingle_response(client, pak, NULL);
514         return 1;
515 }
516
517 static int jingle_create_candidates(struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
518 {
519         struct jingle_candidate *tmp;
520         struct aji_client *c = client->connection;
521         struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
522         struct sockaddr_in sin;
523         struct sockaddr_in dest;
524         struct in_addr us;
525
526         iks *iq, *jingle, *candidate;
527         char user[17], pass[17], preference[5], port[7];
528
529
530         iq = iks_new("iq");
531         jingle = iks_new(GOOGLE_NODE);
532         candidate = iks_new("candidate");
533         if (!iq || !jingle || !candidate) {
534                 ast_log(LOG_ERROR, "Memory allocation error\n");
535                 goto safeout;
536         }
537         ours1 = ast_calloc(1, sizeof(*ours1));
538         ours2 = ast_calloc(1, sizeof(*ours2));
539         iks_insert_node(iq, jingle);
540         iks_insert_node(jingle, candidate);
541
542         for (; p; p = p->next) {
543                 if (!strcasecmp(p->sid, sid))
544                         break;
545         }
546
547         if (!p) {
548                 ast_log(LOG_NOTICE, "No matching jingle session!\n");
549                 goto safeout;
550         }
551
552         ast_rtp_get_us(p->rtp, &sin);
553         ast_find_ourip(&us, bindaddr);
554
555         /* Setup our jingle candidates */
556         ast_copy_string(ours1->name, "rtp", sizeof(ours1->name));
557         ours1->port = ntohs(sin.sin_port);
558         ours1->preference = 1;
559         snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
560         snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
561         ast_copy_string(ours1->username, user, sizeof(ours1->username));
562         ast_copy_string(ours1->password, pass, sizeof(ours1->password));
563         ast_inet_ntoa(ours1->ip, sizeof(ours1->ip), us);
564         ours1->protocol = AJI_PROTOCOL_UDP;
565         ours1->type = AJI_CONNECT_LOCAL;
566         ours1->generation = 0;
567         p->ourcandidates = ours1;
568
569         if (!ast_strlen_zero(externip)) {
570                 /* XXX We should really stun for this one not just go with externip XXX */
571                 snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
572                 snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
573                 ast_copy_string(ours2->username, user, sizeof(ours2->username));
574                 ast_copy_string(ours2->password, pass, sizeof(ours2->password));
575                 ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
576                 ast_copy_string(ours2->name, "rtp", sizeof(ours1->name));
577                 ours2->port = ntohs(sin.sin_port);
578                 ours2->preference = 0.9;
579                 ours2->protocol = AJI_PROTOCOL_UDP;
580                 ours2->type = AJI_CONNECT_STUN;
581                 ours2->generation = 0;
582                 ours1->next = ours2;
583                 ours2 = NULL;
584         }
585         ours1 = NULL;
586         dest.sin_addr = __ourip;
587         dest.sin_port = sin.sin_port;
588
589
590         for (tmp = p->ourcandidates; tmp; tmp = tmp->next) {
591                 snprintf(port, sizeof(port), "%d", tmp->port);
592                 snprintf(preference, sizeof(preference), "%.2f", tmp->preference);
593                 iks_insert_attrib(iq, "from", c->jid->full);
594                 iks_insert_attrib(iq, "to", from);
595                 iks_insert_attrib(iq, "type", "set");
596                 iks_insert_attrib(iq, "id", c->mid);
597                 ast_aji_increment_mid(c->mid);
598                 iks_insert_attrib(jingle, "type", "candidates");
599                 iks_insert_attrib(jingle, "id", sid);
600                 iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from);
601                 iks_insert_attrib(jingle, "xmlns", GOOGLE_NS);
602                 iks_insert_attrib(candidate, "name", tmp->name);
603                 iks_insert_attrib(candidate, "address", tmp->ip);
604                 iks_insert_attrib(candidate, "port", port);
605                 iks_insert_attrib(candidate, "username", tmp->username);
606                 iks_insert_attrib(candidate, "password", tmp->password);
607                 iks_insert_attrib(candidate, "preference", preference);
608                 if (tmp->protocol == AJI_PROTOCOL_UDP)
609                         iks_insert_attrib(candidate, "protocol", "udp");
610                 if (tmp->protocol == AJI_PROTOCOL_SSLTCP)
611                         iks_insert_attrib(candidate, "protocol", "ssltcp");
612                 if (tmp->type == AJI_CONNECT_STUN)
613                         iks_insert_attrib(candidate, "type", "stun");
614                 if (tmp->type == AJI_CONNECT_LOCAL)
615                         iks_insert_attrib(candidate, "type", "local");
616                 if (tmp->type == AJI_CONNECT_RELAY)
617                         iks_insert_attrib(candidate, "type", "relay");
618                 iks_insert_attrib(candidate, "network", "0");
619                 iks_insert_attrib(candidate, "generation", "0");
620                 iks_send(c->p, iq);
621         }
622         p->laststun = 0;
623
624 safeout:
625         if (ours1)
626                 free(ours1);
627         if (ours2)
628                 free(ours2);
629         if (iq)
630                 iks_delete(iq);
631         if (jingle)
632                 iks_delete(jingle);
633         if (candidate)
634                 iks_delete(candidate);
635         return 1;
636 }
637
638 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid)
639 {
640         struct jingle_pvt *tmp = NULL;
641         struct aji_resource *resources = NULL;
642         struct aji_buddy *buddy;
643         char idroster[200];
644
645         ast_log(LOG_DEBUG, "The client is %s for alloc\n", client->name);
646         if (!sid && !strchr(from, '/')) {       /*I started call! */
647                 if (!strcasecmp(client->name, "guest")) {
648                         buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from);
649                         if (buddy)
650                                 resources = buddy->resources;
651                 } else {
652                         resources = client->buddy->resources;
653                 }
654                 while (resources) {
655                         if (resources->cap->jingle) {
656                                 break;
657                         }
658                         resources = resources->next;
659                 }
660                 if (resources)
661                         snprintf(idroster, sizeof(idroster), "%s/%s", from, resources->resource);
662                 else {
663                         ast_log(LOG_ERROR, "no jingle capable clients to talk to.\n");
664                         return NULL;
665                 }
666         }
667         if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
668                 return NULL;
669         }
670         if (sid) {
671                 ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
672                 ast_copy_string(tmp->from, from, sizeof(tmp->from));
673         } else {
674                 snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
675                 ast_copy_string(tmp->from, idroster, sizeof(tmp->from));
676                 tmp->initiator = 1;
677         }
678         tmp->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
679         tmp->parent = client;
680         if (!tmp->rtp) {
681                 ast_log(LOG_WARNING, "Out of RTP sessions?\n");
682                 free(tmp);
683                 return NULL;
684         }
685         ast_copy_string(tmp->exten, "s", sizeof(tmp->exten));
686         ast_mutex_init(&tmp->lock);
687         ast_mutex_lock(&jinglelock);
688         tmp->next = client->p;
689         client->p = tmp;
690         ast_mutex_unlock(&jinglelock);
691         return tmp;
692 }
693
694 /*! \brief Start new jingle channel */
695 static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title)
696 {
697         struct ast_channel *tmp;
698         int fmt;
699         int what;
700
701         tmp = ast_channel_alloc(1);
702         if (!tmp) {
703                 ast_log(LOG_WARNING, "Unable to allocate Jingle channel structure!\n");
704                 return NULL;
705         }
706         tmp->tech = &jingle_tech;
707
708         /* Select our native format based on codec preference until we receive
709            something from another device to the contrary. */
710         if (i->jointcapability)
711                 what = i->jointcapability;
712         else if (i->capability)
713                 what = i->capability;
714         else
715                 what = global_capability;
716         tmp->nativeformats =
717                 ast_codec_choose(&i->prefs, what,
718                                                  1) | (i->jointcapability & AST_FORMAT_VIDEO_MASK);
719         fmt = ast_best_codec(tmp->nativeformats);
720
721         if (title)
722                 ast_string_field_build(tmp, name, "Jingle/%s-%04lx", title,
723                                                            ast_random() & 0xffff);
724         else
725                 ast_string_field_build(tmp, name, "Jingle/%s-%04lx", i->from,
726                                                            ast_random() & 0xffff);
727
728         if (i->rtp) {
729                 tmp->fds[0] = ast_rtp_fd(i->rtp);
730                 tmp->fds[1] = ast_rtcp_fd(i->rtp);
731         }
732         if (i->vrtp) {
733                 tmp->fds[2] = ast_rtp_fd(i->vrtp);
734                 tmp->fds[3] = ast_rtcp_fd(i->vrtp);
735         }
736         if (state == AST_STATE_RING)
737                 tmp->rings = 1;
738         tmp->adsicpe = AST_ADSI_UNAVAILABLE;
739         tmp->writeformat = fmt;
740         tmp->rawwriteformat = fmt;
741         tmp->readformat = fmt;
742         tmp->rawreadformat = fmt;
743         tmp->tech_pvt = i;
744
745         tmp->callgroup = client->callgroup;
746         tmp->pickupgroup = client->pickupgroup;
747         tmp->cid.cid_pres = client->callingpres;
748         if (!ast_strlen_zero(client->accountcode))
749                 ast_string_field_set(tmp, accountcode, client->accountcode);
750         if (client->amaflags)
751                 tmp->amaflags = client->amaflags;
752         if (!ast_strlen_zero(client->language))
753                 ast_string_field_set(tmp, language, client->language);
754         if (!ast_strlen_zero(client->musicclass))
755                 ast_string_field_set(tmp, musicclass, client->musicclass);
756         i->owner = tmp;
757         ast_mutex_lock(&usecnt_lock);
758         usecnt++;
759         ast_mutex_unlock(&usecnt_lock);
760         ast_copy_string(tmp->context, client->context, sizeof(tmp->context));
761         ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten));
762         if (!ast_strlen_zero(i->cid_num))
763                 tmp->cid.cid_num = ast_strdup(i->cid_num);
764         if (!ast_strlen_zero(i->cid_name))
765                 tmp->cid.cid_name = ast_strdup(i->cid_name);
766         if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s"))
767                 tmp->cid.cid_dnid = ast_strdup(i->exten);
768         tmp->priority = 1;
769         ast_setstate(tmp, state);
770         if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
771                 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
772                 tmp->hangupcause = AST_CAUSE_SWITCH_CONGESTION;
773                 ast_hangup(tmp);
774                 tmp = NULL;
775         }
776
777         /* Configure the new channel jb */
778         if (tmp && i && i->rtp)
779                 ast_jb_configure(tmp, &global_jbconf);
780
781         return tmp;
782 }
783
784 static int jingle_action(struct jingle *client, struct jingle_pvt *p, const char *action)
785 {
786         iks *request, *session = NULL;
787         int res = -1;
788
789         request = iks_new("iq");
790         if (request) {
791                 iks_insert_attrib(request, "type", "set");
792                 iks_insert_attrib(request, "from", client->connection->jid->full);
793                 iks_insert_attrib(request, "to", p->from);
794                 iks_insert_attrib(request, "id", client->connection->mid);
795                 ast_aji_increment_mid(client->connection->mid);
796                 session = iks_new("session");
797                 if (session) {
798                         iks_insert_attrib(session, "type", action);
799                         iks_insert_attrib(session, "id", p->sid);
800                         iks_insert_attrib(session, "initiator",
801                                                           p->initiator ? client->connection->jid->full : p->from);
802                         iks_insert_attrib(session, "xmlns", "http://www.google.com/session");
803                         iks_insert_node(request, session);
804                         iks_send(client->connection->p, request);
805                         iks_delete(session);
806                         res = 0;
807                 }
808                 iks_delete(request);
809         }
810         return res;
811 }
812
813 static void jingle_free_candidates(struct jingle_candidate *candidate)
814 {
815         struct jingle_candidate *last;
816         while (candidate) {
817                 last = candidate;
818                 candidate = candidate->next;
819                 free(last);
820         }
821 }
822
823 static void jingle_free_pvt(struct jingle *client, struct jingle_pvt *p)
824 {
825         struct jingle_pvt *cur, *prev = NULL;
826         cur = client->p;
827         while (cur) {
828                 if (cur == p) {
829                         if (prev)
830                                 prev->next = p->next;
831                         else
832                                 client->p = p->next;
833                         break;
834                 }
835                 prev = cur;
836                 cur = cur->next;
837         }
838         if (p->ringrule)
839                 iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
840         if (p->owner)
841                 ast_log(LOG_WARNING, "Uh oh, there's an owner, this is going to be messy.\n");
842         if (p->rtp)
843                 ast_rtp_destroy(p->rtp);
844         if (p->vrtp)
845                 ast_rtp_destroy(p->vrtp);
846         jingle_free_candidates(p->theircandidates);
847         free(p);
848 }
849
850
851 static int jingle_newcall(struct jingle *client, ikspak *pak)
852 {
853         struct jingle_pvt *p, *tmp = client->p;
854         struct ast_channel *chan;
855         int res;
856         iks *codec;
857
858         /* Make sure our new call doesn't exist yet */
859         while (tmp) {
860                 if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) {
861                         ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
862                         jingle_response(client, pak, "out-of-order");
863                         return -1;
864                 }
865                 tmp = tmp->next;
866         }
867
868         p = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, GOOGLE_SID));
869         if (!p) {
870                 ast_log(LOG_WARNING, "Unable to allocate jingle structure!\n");
871                 return -1;
872         }
873         chan = jingle_new(client, p, AST_STATE_DOWN, pak->from->user);
874         if (chan) {
875                 ast_mutex_lock(&p->lock);
876                 ast_copy_string(p->from, pak->from->full, sizeof(p->from));
877                 if (iks_find_attrib(pak->query, GOOGLE_SID)) {
878                         ast_copy_string(p->sid, iks_find_attrib(pak->query, GOOGLE_SID),
879                                                         sizeof(p->sid));
880                 }
881
882                 codec = iks_child(iks_child(iks_child(pak->x)));
883                 while (codec) {
884                         ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
885                         ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio",
886                                                                         iks_find_attrib(codec, "name"));
887                         codec = iks_next(codec);
888                 }
889                 
890                 ast_mutex_unlock(&p->lock);
891                 ast_setstate(chan, AST_STATE_RING);
892                 res = ast_pbx_start(chan);
893
894                 switch (res) {
895                 case AST_PBX_FAILED:
896                         ast_log(LOG_WARNING, "Failed to start PBX :(\n");
897                         jingle_response(client, pak, "service-unavailable");
898                         break;
899                 case AST_PBX_CALL_LIMIT:
900                         ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
901                         jingle_response(client, pak, "service-unavailable");
902                         break;
903                 case AST_PBX_SUCCESS:
904                         jingle_response(client, pak, NULL);
905                         jingle_create_candidates(client, p,
906                                         iks_find_attrib(pak->query, GOOGLE_SID),
907                                         iks_find_attrib(pak->x, "from"));
908                         /* nothing to do */
909                         break;
910                 }
911         } else {
912                 jingle_free_pvt(client, p);
913         }
914         return 1;
915 }
916
917 static int jingle_update_stun(struct jingle *client, struct jingle_pvt *p)
918 {
919         struct jingle_candidate *tmp;
920         struct hostent *hp;
921         struct ast_hostent ahp;
922         struct sockaddr_in sin;
923
924         if (time(NULL) == p->laststun)
925                 return 0;
926
927         tmp = p->theircandidates;
928         p->laststun = time(NULL);
929         while (tmp) {
930                 char username[256];
931                 hp = ast_gethostbyname(tmp->ip, &ahp);
932                 sin.sin_family = AF_INET;
933                 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
934                 sin.sin_port = htons(tmp->port);
935                 snprintf(username, sizeof(username), "%s%s", tmp->username,
936                                  p->ourcandidates->username);
937
938                 ast_rtp_stun_request(p->rtp, &sin, username);
939                 tmp = tmp->next;
940         }
941         return 1;
942 }
943
944 static int jingle_add_candidate(struct jingle *client, ikspak *pak)
945 {
946         struct jingle_pvt *p = NULL, *tmp = NULL;
947         struct aji_client *c = client->connection;
948         struct jingle_candidate *newcandidate = NULL;
949         iks  *traversenodes = NULL, *receipt = NULL;
950         newcandidate = ast_calloc(1, sizeof(*newcandidate));
951         if (!newcandidate)
952                 return 0;
953         for (tmp = client->p; tmp; tmp = tmp->next) {
954                 if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) {
955                         p = tmp;
956                         break;
957                 }
958         }
959
960         if (!p)
961                 return -1;
962
963         traversenodes = pak->query;
964         while(traversenodes) {
965                 if(!strcasecmp(iks_name(traversenodes), "session")) {
966                         traversenodes = iks_child(traversenodes);
967                         continue;
968                 }
969                 if(!strcasecmp(iks_name(traversenodes), "candidate")) {
970                         newcandidate = ast_calloc(1, sizeof(*newcandidate));
971                         if (!newcandidate)
972                                 return 0;
973                         ast_copy_string(newcandidate->name, iks_find_attrib(traversenodes, "name"),
974                                                         sizeof(newcandidate->name));
975                         ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "address"),
976                                                         sizeof(newcandidate->ip));
977                         newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
978                         ast_copy_string(newcandidate->username, iks_find_attrib(traversenodes, "username"),
979                                                         sizeof(newcandidate->username));
980                         ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "password"),
981                                                         sizeof(newcandidate->password));
982                         newcandidate->preference = atof(iks_find_attrib(traversenodes, "preference"));
983                         if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
984                                 newcandidate->protocol = AJI_PROTOCOL_UDP;
985                         if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
986                                 newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
987                 
988                         if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "stun"))
989                                 newcandidate->type = AJI_CONNECT_STUN;
990                         if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "local"))
991                                 newcandidate->type = AJI_CONNECT_LOCAL;
992                         if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
993                                 newcandidate->type = AJI_CONNECT_RELAY;
994                         ast_copy_string(newcandidate->network, iks_find_attrib(traversenodes, "network"),
995                                                         sizeof(newcandidate->network));
996                         newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
997                         newcandidate->next = NULL;
998                 
999                         newcandidate->next = p->theircandidates;
1000                         p->theircandidates = newcandidate;
1001                         p->laststun = 0;
1002                         jingle_update_stun(p->parent, p);
1003                         newcandidate = NULL;
1004                 }
1005                 traversenodes = iks_next(traversenodes);
1006         }
1007         
1008         receipt = iks_new("iq");
1009         iks_insert_attrib(receipt, "type", "result");
1010         iks_insert_attrib(receipt, "from", c->jid->full);
1011         iks_insert_attrib(receipt, "to", iks_find_attrib(pak->x, "from"));
1012         iks_insert_attrib(receipt, "id", iks_find_attrib(pak->x, "id"));
1013         iks_send(c->p, receipt);
1014         iks_delete(receipt);
1015
1016         return 1;
1017 }
1018
1019 static struct ast_frame *jingle_rtp_read(struct ast_channel *ast, struct jingle_pvt *p)
1020 {
1021         struct ast_frame *f;
1022         if (!p->rtp) {
1023                 return &ast_null_frame;
1024         }
1025         f = ast_rtp_read(p->rtp);
1026         jingle_update_stun(p->parent, p);
1027         if (p->owner) {
1028                 /* We already hold the channel lock */
1029                 if (f->frametype == AST_FRAME_VOICE) {
1030                         if (f->subclass != (p->owner->nativeformats & AST_FORMAT_AUDIO_MASK)) {
1031                                 if (option_debug)
1032                                         ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
1033                                 p->owner->nativeformats =
1034                                         (p->owner->nativeformats & AST_FORMAT_VIDEO_MASK) | f->subclass;
1035                                 ast_set_read_format(p->owner, p->owner->readformat);
1036                                 ast_set_write_format(p->owner, p->owner->writeformat);
1037                         }
1038 /*                      if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) {
1039                                 f = ast_dsp_process(p->owner, p->vad, f);
1040                                 if (option_debug && f && (f->frametype == AST_FRAME_DTMF))
1041                                         ast_log(LOG_DEBUG, "* Detected inband DTMF '%c'\n", f->subclass);
1042                         } */
1043                 }
1044         }
1045         return f;
1046 }
1047
1048 static struct ast_frame *jingle_read(struct ast_channel *ast)
1049 {
1050         struct ast_frame *fr;
1051         struct jingle_pvt *p = ast->tech_pvt;
1052
1053         ast_mutex_lock(&p->lock);
1054         fr = jingle_rtp_read(ast, p);
1055         ast_mutex_unlock(&p->lock);
1056         return fr;
1057 }
1058
1059 /*! \brief Send frame to media channel (rtp) */
1060 static int jingle_write(struct ast_channel *ast, struct ast_frame *frame)
1061 {
1062         struct jingle_pvt *p = ast->tech_pvt;
1063         int res = 0;
1064
1065         switch (frame->frametype) {
1066         case AST_FRAME_VOICE:
1067                 if (!(frame->subclass & ast->nativeformats)) {
1068                         ast_log(LOG_WARNING,
1069                                         "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
1070                                         frame->subclass, ast->nativeformats, ast->readformat,
1071                                         ast->writeformat);
1072                         return 0;
1073                 }
1074                 if (p) {
1075                         ast_mutex_lock(&p->lock);
1076                         if (p->rtp) {
1077                                 res = ast_rtp_write(p->rtp, frame);
1078                         }
1079                         ast_mutex_unlock(&p->lock);
1080                 }
1081                 break;
1082         case AST_FRAME_VIDEO:
1083                 if (p) {
1084                         ast_mutex_lock(&p->lock);
1085                         if (p->vrtp) {
1086                                 res = ast_rtp_write(p->vrtp, frame);
1087                         }
1088                         ast_mutex_unlock(&p->lock);
1089                 }
1090                 break;
1091         case AST_FRAME_IMAGE:
1092                 return 0;
1093                 break;
1094         default:
1095                 ast_log(LOG_WARNING, "Can't send %d type frames with Jingle write\n",
1096                                 frame->frametype);
1097                 return 0;
1098         }
1099
1100         return res;
1101 }
1102
1103 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1104 {
1105         struct jingle_pvt *p = newchan->tech_pvt;
1106         ast_mutex_lock(&p->lock);
1107
1108         if ((p->owner != oldchan)) {
1109                 ast_mutex_unlock(&p->lock);
1110                 return -1;
1111         }
1112         if (p->owner == oldchan)
1113                 p->owner = newchan;
1114         ast_mutex_unlock(&p->lock);
1115         return 0;
1116 }
1117
1118 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
1119 {
1120         ast_log(LOG_NOTICE, "XXX Implement jingle indicate XXX\n");
1121
1122         return -1;
1123 }
1124
1125 static int jingle_digit(struct ast_channel *ast, char digit)
1126 {
1127         ast_log(LOG_NOTICE, "XXX Implement jingle digit XXX\n");
1128
1129         return -1;
1130 }
1131
1132 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
1133 {
1134         ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");
1135
1136         return -1;
1137 }
1138 static int jingle_transmit_invite(struct jingle_pvt *p)
1139 {
1140         struct jingle *jingle = NULL;
1141         struct aji_client *client = NULL;
1142         iks *iq, *desc, *session;
1143         iks *payload_eg711u, *payload_pcmu;
1144
1145         jingle = p->parent;
1146         client = jingle->connection;
1147         iq = iks_new("iq");
1148         desc = iks_new("description");
1149         session = iks_new("session");
1150         iks_insert_attrib(iq, "type", "set");
1151         iks_insert_attrib(iq, "to", p->from);
1152         iks_insert_attrib(iq, "from", client->jid->full);
1153         iks_insert_attrib(iq, "id", client->mid);
1154         ast_aji_increment_mid(client->mid);
1155         iks_insert_attrib(session, "type", "initiate");
1156         iks_insert_attrib(session, "id", p->sid);
1157         iks_insert_attrib(session, "initiator", client->jid->full);
1158         iks_insert_attrib(session, "xmlns", "http://www.google.com/session");
1159         iks_insert_attrib(desc, "xmlns", "http://www.google.com/session/phone");
1160         payload_pcmu = iks_new("payload-type");
1161         iks_insert_attrib(payload_pcmu, "id", "0");
1162         iks_insert_attrib(payload_pcmu, "name", "PCMU");
1163         payload_eg711u = iks_new("payload-type");
1164         iks_insert_attrib(payload_eg711u, "id", "100");
1165         iks_insert_attrib(payload_eg711u, "name", "EG711U");
1166         iks_insert_node(desc, payload_pcmu);
1167         iks_insert_node(desc, payload_eg711u);
1168         iks_insert_node(iq, session);
1169         iks_insert_node(session, desc);
1170         iks_send(client->p, iq);
1171         iks_delete(iq);
1172         iks_delete(desc);
1173         iks_delete(session);
1174         iks_delete(payload_eg711u);
1175         iks_delete(payload_pcmu);
1176         return 0;
1177 }
1178 /* Not in use right now.
1179 static int jingle_auto_congest(void *nothing)
1180 {
1181         struct jingle_pvt *p = nothing;
1182
1183         ast_mutex_lock(&p->lock);
1184         if (p->owner) {
1185                 if (!ast_channel_trylock(p->owner)) {
1186                         ast_log(LOG_NOTICE, "Auto-congesting %s\n", p->owner->name);
1187                         ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
1188                         ast_channel_unlock(p->owner);
1189                 }
1190         }
1191         ast_mutex_unlock(&p->lock);
1192         return 0;
1193 }
1194 */
1195
1196 /*! \brief Initiate new call, part of PBX interface 
1197  *      dest is the dial string */
1198 static int jingle_call(struct ast_channel *ast, char *dest, int timeout)
1199 {
1200         struct jingle_pvt *p = ast->tech_pvt;
1201
1202         if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
1203                 ast_log(LOG_WARNING, "jingle_call called on %s, neither down nor reserved\n", ast->name);
1204                 return -1;
1205         }
1206
1207         ast_setstate(ast, AST_STATE_RING);
1208         p->jointcapability = p->capability;
1209         if (!p->ringrule) {
1210                 ast_copy_string(p->ring, p->parent->connection->mid, sizeof(p->ring));
1211                 p->ringrule = iks_filter_add_rule(p->parent->connection->f, jingle_ringing_ack, p,
1212                                                         IKS_RULE_ID, p->ring, IKS_RULE_DONE);
1213         } else {
1214                 ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");
1215         }
1216         jingle_transmit_invite(p);
1217         jingle_create_candidates(p->parent, p, p->sid, p->from);
1218
1219         return 0;
1220 }
1221
1222 /*! \brief Hangup a call through the jingle proxy channel */
1223 static int jingle_hangup(struct ast_channel *ast)
1224 {
1225         struct jingle_pvt *p = ast->tech_pvt;
1226         struct jingle *client;
1227
1228         ast_mutex_lock(&p->lock);
1229         client = p->parent;
1230         p->owner = NULL;
1231         ast->tech_pvt = NULL;
1232         if (!p->alreadygone)
1233                 jingle_action(client, p, "terminate");
1234         ast_mutex_unlock(&p->lock);
1235
1236         jingle_free_pvt(client, p);
1237         ast_mutex_lock(&usecnt_lock);
1238         usecnt--;
1239         ast_mutex_unlock(&usecnt_lock);
1240
1241         return 0;
1242 }
1243
1244 /*! \brief Part of PBX interface */
1245 static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause)
1246 {
1247         struct jingle_pvt *p = NULL;
1248         struct jingle *client = NULL;
1249         char *sender = NULL, *to = NULL, *s = NULL;
1250         struct ast_channel *chan = NULL;
1251
1252         if (data) {
1253                 s = ast_strdupa((char *) data);
1254                 if (s) {
1255                         sender = strsep(&s, "/");
1256                         if (sender && (sender[0] != '\0'))
1257                                 to = strsep(&s, "/");
1258                         if (!to) {
1259                                 ast_log(LOG_ERROR, "Bad arguments\n");
1260                                 if (s)
1261                                         free(s);
1262                                 return NULL;
1263                         }
1264                 }
1265         }
1266         client = find_jingle(to, sender);
1267         if (!client) {
1268                 ast_log(LOG_WARNING, "Could not find Recipiant.\n");
1269                 if (s)
1270                         free(s);
1271                 return NULL;
1272         }
1273         p = jingle_alloc(client, to, NULL);
1274         if (p) {
1275                 chan = jingle_new(client, p, AST_STATE_DOWN, to);
1276         }
1277         return chan;
1278 }
1279
1280 #if 0
1281 /*! \brief CLI command "jingle show channels" */
1282 static int jingle_show(int fd, int argc, char **argv)
1283 {
1284         struct jingle_pvt *p = NULL;
1285         struct jingle *peer = NULL;
1286         struct jingle_candidate *tmp;
1287         struct jingle *client = NULL;
1288         client = ast_aji_get_client("asterisk");
1289         if (argc != 3)
1290                 return RESULT_SHOWUSAGE;
1291         ast_mutex_lock(&jinglelock);
1292         if (client)
1293                 p = jingles->p;
1294         while (p) {
1295                 ast_mutex_lock(&p->lock);
1296                 ast_cli(fd, "SID = %s\n", p->sid);
1297                 tmp = p->candidates;
1298                 while (tmp) {
1299                         ast_verbose("port %d\n", tmp->port);
1300                         tmp = tmp->next;
1301                 }
1302                 ast_mutex_unlock(&p->lock);
1303                 p = p->next;
1304         }
1305         if (!jingles->p)
1306                 ast_cli(fd, "No jingle channels in use\n");
1307         ast_mutex_unlock(&jinglelock);
1308         return RESULT_SUCCESS;
1309 }
1310 #endif
1311
1312 static int jingle_parser(void *data, ikspak *pak)
1313 {
1314         struct jingle *client = ASTOBJ_REF((struct jingle *) data);
1315
1316         if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", JINGLE_INITIATE)) {
1317                 /* New call */
1318                 jingle_newcall(client, pak);
1319         } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", GOOGLE_NEGOTIATE)) {
1320                 ast_log(LOG_DEBUG, "About to add candidate!\n");
1321                 jingle_add_candidate(client, pak);
1322                 ast_log(LOG_DEBUG, "Candidate Added!\n");
1323         } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", GOOGLE_ACCEPT)) {
1324                 jingle_is_answered(client, pak);
1325         } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", "terminate")) {
1326                 jingle_hangup_farend(client, pak);
1327         } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", "reject")) {
1328                 jingle_hangup_farend(client, pak);
1329         }
1330         ASTOBJ_UNREF(client, jingle_member_destroy);
1331         return IKS_FILTER_EAT;
1332 }
1333 /* Not using this anymore probably take out soon 
1334 static struct jingle_candidate *jingle_create_candidate(char *args)
1335 {
1336         char *name, *type, *preference, *protocol;
1337         struct jingle_candidate *res;
1338         res = malloc(sizeof(struct jingle_candidate));
1339         memset(res, 0, sizeof(struct jingle_candidate));
1340         if (args)
1341                 name = args;
1342         if ((args = strchr(args, ','))) {
1343                 *args = '\0';
1344                 args++;
1345                 preference = args;
1346         }
1347         if ((args = strchr(args, ','))) {
1348                 *args = '\0';
1349                 args++;
1350                 protocol = args;
1351         }
1352         if ((args = strchr(args, ','))) {
1353                 *args = '\0';
1354                 args++;
1355                 type = args;
1356         }
1357         if (name)
1358                 ast_copy_string(res->name, name, sizeof(res->name));
1359         if (preference) {
1360                 res->preference = atof(preference);
1361         }
1362         if (protocol) {
1363                 if (!strcasecmp("udp", protocol))
1364                         res->protocol = AJI_PROTOCOL_UDP;
1365                 if (!strcasecmp("ssltcp", protocol))
1366                         res->protocol = AJI_PROTOCOL_SSLTCP;
1367         }
1368         if (type) {
1369                 if (!strcasecmp("stun", type))
1370                         res->type = AJI_CONNECT_STUN;
1371                 if (!strcasecmp("local", type))
1372                         res->type = AJI_CONNECT_LOCAL;
1373                 if (!strcasecmp("relay", type))
1374                         res->type = AJI_CONNECT_RELAY;
1375         }
1376
1377         return res;
1378 }
1379 */
1380 static int jingle_create_member(char *label, struct ast_variable *var, int allowguest,
1381                                                                 struct ast_codec_pref prefs, char *context,
1382                                                                 struct jingle *member)
1383 {
1384         struct aji_client *client;
1385         if (!member)
1386                 ast_log(LOG_WARNING, "Out of memory.\n");
1387
1388         ast_copy_string(member->name, label, sizeof(member->name));
1389         ast_copy_string(member->user, label, sizeof(member->user));
1390         ast_copy_string(member->context, context, sizeof(member->context));
1391         member->allowguest = allowguest;
1392         member->prefs = prefs;
1393         while (var) {
1394 #if 0
1395                 struct jingle_candidate *candidate = NULL;
1396 #endif
1397                 if (!strcasecmp(var->name, "username"))
1398                         ast_copy_string(member->user, var->value, sizeof(member->user));
1399                 else if (!strcasecmp(var->name, "disallow"))
1400                         ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 0);
1401                 else if (!strcasecmp(var->name, "allow"))
1402                         ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 1);
1403                 else if (!strcasecmp(var->name, "context"))
1404                         ast_copy_string(member->context, var->value, sizeof(member->context));
1405 #if 0
1406                 else if (!strcasecmp(var->name, "candidate")) {
1407                         candidate = jingle_create_candidate(var->value);
1408                         if (candidate) {
1409                                 candidate->next = member->ourcandidates;
1410                                 member->ourcandidates = candidate;
1411                         }
1412                 }
1413 #endif
1414                 else if (!strcasecmp(var->name, "connection")) {
1415                         if ((client = ast_aji_get_client(var->value))) {
1416                                 member->connection = client;
1417                                 iks_filter_add_rule(client->f, jingle_parser, member, IKS_RULE_TYPE,
1418                                                                         IKS_PAK_IQ, IKS_RULE_FROM_PARTIAL, member->user,
1419                                                                         IKS_RULE_NS, "http://www.google.com/session",
1420                                                                         IKS_RULE_DONE);
1421                         } else {
1422                                 ast_log(LOG_ERROR, "connection referenced not found!\n");
1423                                 return 0;
1424                         }
1425                 }
1426                 var = var->next;
1427         }
1428         if (member->connection && member->user)
1429                 member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user);
1430         else {
1431                 ast_log(LOG_ERROR, "No Connection or Username!\n");
1432         }
1433         return 1;
1434 }
1435
1436 static int jingle_load_config(void)
1437 {
1438         char *cat = NULL;
1439         struct ast_config *cfg = NULL;
1440         char context[100];
1441         int allowguest = 1;
1442         struct ast_variable *var;
1443         struct jingle *member;
1444         struct ast_codec_pref prefs;
1445         struct aji_client_container *clients;
1446         struct jingle_candidate *global_candidates = NULL;
1447
1448         cfg = ast_config_load(JINGLE_CONFIG);
1449         if (!cfg) {
1450                 ast_log(LOG_WARNING, "No such configuration file %s\n", JINGLE_CONFIG);
1451                 return 0;
1452         }
1453
1454         /* Copy the default jb config over global_jbconf */
1455         memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
1456
1457         cat = ast_category_browse(cfg, NULL);
1458         for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
1459                 /* handle jb conf */
1460                 if (!ast_jb_read_conf(&global_jbconf, var->name, var->value))
1461                         continue;
1462
1463                 if (!strcasecmp(var->name, "allowguest"))
1464                         allowguest =
1465                                 (ast_true(ast_variable_retrieve(cfg, "general", "allowguest"))) ? 1 : 0;
1466                 else if (!strcasecmp(var->name, "disallow"))
1467                         ast_parse_allow_disallow(&prefs, &global_capability, var->value, 0);
1468                 else if (!strcasecmp(var->name, "allow"))
1469                         ast_parse_allow_disallow(&prefs, &global_capability, var->value, 1);
1470                 else if (!strcasecmp(var->name, "context"))
1471                         ast_copy_string(context, var->value, sizeof(context));
1472                 else if (!strcasecmp(var->name, "externip"))
1473                         ast_copy_string(externip, var->value, sizeof(externip));
1474 #if 0
1475                 else if (!strcasecmp(var->name, "candidate")) {
1476                         candidate = jingle_create_candidate(var->value);
1477                         if (candidate) {
1478                                 candidate->next = global_candidates;
1479                                 global_candidates = candidate;
1480                         }
1481                 }
1482 #endif
1483         }
1484         while (cat) {
1485                 if (strcasecmp(cat, "general")) {
1486                         var = ast_variable_browse(cfg, cat);
1487                         member = (struct jingle *) malloc(sizeof(struct jingle));
1488                         memset(member, 0, sizeof(struct jingle));
1489                         ASTOBJ_INIT(member);
1490                         ASTOBJ_WRLOCK(member);
1491                         if (!strcasecmp(cat, "guest")) {
1492                                 ast_copy_string(member->name, "guest", sizeof(member->name));
1493                                 ast_copy_string(member->user, "guest", sizeof(member->user));
1494                                 ast_copy_string(member->context, context, sizeof(member->context));
1495                                 member->allowguest = allowguest;
1496                                 member->prefs = prefs;
1497                                 while (var) {
1498                                         if (!strcasecmp(var->name, "disallow"))
1499                                                 ast_parse_allow_disallow(&member->prefs, &member->capability,
1500                                                                                                  var->value, 0);
1501                                         else if (!strcasecmp(var->name, "allow"))
1502                                                 ast_parse_allow_disallow(&member->prefs, &member->capability,
1503                                                                                                  var->value, 1);
1504                                         else if (!strcasecmp(var->name, "context"))
1505                                                 ast_copy_string(member->context, var->value,
1506                                                                                 sizeof(member->context));
1507 #if 0
1508                                         else if (!strcasecmp(var->name, "candidate")) {
1509                                                 candidate = jingle_create_candidate(var->value);
1510                                                 if (candidate) {
1511                                                         candidate->next = member->ourcandidates;
1512                                                         member->ourcandidates = candidate;
1513                                                 }
1514                                         }
1515 #endif
1516                                         var = var->next;
1517                                 }
1518                                 ASTOBJ_UNLOCK(member);
1519                                 clients = ast_aji_get_clients();
1520                                 if (clients) {
1521                                         ASTOBJ_CONTAINER_TRAVERSE(clients, 1, {
1522                                                 ASTOBJ_WRLOCK(iterator);
1523                                                 ASTOBJ_WRLOCK(member);
1524                                                 member->connection = iterator;
1525                                                 iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS,
1526                                                                                 "http://www.google.com/session", IKS_RULE_DONE);
1527                                                 ASTOBJ_UNLOCK(member);
1528                                                 ASTOBJ_CONTAINER_LINK(&jingles, member);
1529                                                 ASTOBJ_UNLOCK(iterator);
1530                                         });
1531                                 } else {
1532                                         ASTOBJ_UNLOCK(member);
1533                                         ASTOBJ_UNREF(member, jingle_member_destroy);
1534                                 }
1535                         } else {
1536                                 if (jingle_create_member(cat, var, allowguest, prefs, context, member)) {
1537                                         ASTOBJ_UNLOCK(member);
1538                                         ASTOBJ_CONTAINER_LINK(&jingles, member);
1539                                         ASTOBJ_UNREF(member, jingle_member_destroy);
1540                                 } else {
1541                                         ASTOBJ_UNLOCK(member);
1542                                         ASTOBJ_UNREF(member, jingle_member_destroy);
1543                                 }
1544                         }
1545                 }
1546                 cat = ast_category_browse(cfg, cat);
1547         }
1548         jingle_free_candidates(global_candidates);
1549         return 1;
1550 }
1551
1552 /*! \brief Load module into PBX, register channel */
1553 static int load_module(void *mod)
1554 {
1555         ASTOBJ_CONTAINER_INIT(&jingles);
1556         if (!jingle_load_config()) {
1557                 ast_log(LOG_ERROR, "Unable to read config file %s\n", JINGLE_CONFIG);
1558                 return 0;
1559         }
1560
1561         sched = sched_context_create();
1562
1563         if (!sched) {
1564                 ast_log(LOG_WARNING, "Unable to create schedule context\n");
1565         }
1566
1567         io = io_context_create();
1568         if (!io) {
1569                 ast_log(LOG_WARNING, "Unable to create I/O context\n");
1570         }
1571
1572         if (ast_find_ourip(&__ourip, bindaddr)) {
1573                 ast_log(LOG_WARNING, "Unable to get own IP address, Jingle disabled\n");
1574                 return 0;
1575         }
1576
1577         ast_rtp_proto_register(&jingle_rtp);
1578
1579         /* Make sure we can register our channel type */
1580         if (ast_channel_register(&jingle_tech)) {
1581                 ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
1582                 return -1;
1583         }
1584         return 0;
1585 }
1586
1587 /*! \brief Reload module */
1588 static int reload(void *mod)
1589 {
1590         return 0;
1591 }
1592
1593 /*! \brief Unload the jingle channel from Asterisk */
1594 static int unload_module(void *mod)
1595 {
1596         struct jingle_pvt *privates = NULL;
1597         /* First, take us out of the channel loop */
1598         ast_channel_unregister(&jingle_tech);
1599         ast_rtp_proto_unregister(&jingle_rtp);
1600         if (!ast_mutex_lock(&jinglelock)) {
1601                 /* Hangup all interfaces if they have an owner */
1602                 ASTOBJ_CONTAINER_TRAVERSE(&jingles, 1, {
1603                         ASTOBJ_WRLOCK(iterator);
1604                         privates = iterator->p;
1605                         while(privates) {
1606                             if (privates->owner)
1607                                 ast_softhangup(privates->owner, AST_SOFTHANGUP_APPUNLOAD);
1608                             privates = privates->next;
1609                         }
1610                         iterator->p = NULL;
1611                         ASTOBJ_UNLOCK(iterator);
1612                 });
1613                 ast_mutex_unlock(&jinglelock);
1614         } else {
1615                 ast_log(LOG_WARNING, "Unable to lock the monitor\n");
1616                 return -1;
1617         }
1618         ASTOBJ_CONTAINER_DESTROYALL(&jingles, jingle_member_destroy);
1619         ASTOBJ_CONTAINER_DESTROY(&jingles);
1620         return 0;
1621 }
1622
1623 static const char *key(void)
1624 {
1625         return ASTERISK_GPL_KEY;
1626 }
1627
1628 static const char *description(void)
1629 {
1630         return desc;
1631 }
1632
1633 STD_MOD(MOD_1, reload, NULL, NULL);