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  * Iksemel http://iksemel.jabberstudio.org/
  26  *
  27  * \ingroup channel_drivers
  28  */
  29
  30 /*! \li \ref chan_jingle.c uses the configuration file \ref jingle.conf
  31  * \addtogroup configuration_file
  32  */
  33
  34 /*! \page jingle.conf jingle.conf
  35  * \verbinclude jingle.conf.sample
  36  */
  37
  38 /*** MODULEINFO
  39         <depend>iksemel</depend>
  40         <depend>res_jabber</depend>
  41         <use type="external">openssl</use>
  42         <defaultenabled>no</defaultenabled>
  43         <support_level>deprecated</support_level>
  44         <replacement>chan_motif</replacement>
  45  ***/
  46
  47 #include "asterisk.h"
  48
  49 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  50
  51 #include <sys/socket.h>
  52 #include <fcntl.h>
  53 #include <netdb.h>
  54 #include <netinet/in.h>
  55 #include <arpa/inet.h>
  56 #include <sys/signal.h>
  57 #include <iksemel.h>
  58 #include <pthread.h>
  59
  60 #include "asterisk/lock.h"
  61 #include "asterisk/channel.h"
  62 #include "asterisk/config.h"
  63 #include "asterisk/module.h"
  64 #include "asterisk/pbx.h"
  65 #include "asterisk/sched.h"
  66 #include "asterisk/io.h"
  67 #include "asterisk/rtp_engine.h"
  68 #include "asterisk/acl.h"
  69 #include "asterisk/callerid.h"
  70 #include "asterisk/file.h"
  71 #include "asterisk/cli.h"
  72 #include "asterisk/app.h"
  73 #include "asterisk/musiconhold.h"
  74 #include "asterisk/manager.h"
  75 #include "asterisk/stringfields.h"
  76 #include "asterisk/utils.h"
  77 #include "asterisk/causes.h"
  78 #include "asterisk/astobj.h"
  79 #include "asterisk/abstract_jb.h"
  80 #include "asterisk/jabber.h"
  81 #include "asterisk/jingle.h"
  82
  83 #define JINGLE_CONFIG "jingle.conf"
  84
  85 /*! Global jitterbuffer configuration - by default, jb is disabled */
  86 static struct ast_jb_conf default_jbconf =
  87 {
  88         .flags = 0,
  89         .max_size = -1,
  90         .resync_threshold = -1,
  91         .impl = "",
  92         .target_extra = -1,
  93 };
  94 static struct ast_jb_conf global_jbconf;
  95
  96 enum jingle_protocol {
  97         AJI_PROTOCOL_UDP,
  98         AJI_PROTOCOL_SSLTCP,
  99 };
 100
 101 enum jingle_connect_type {
 102         AJI_CONNECT_HOST,
 103         AJI_CONNECT_PRFLX,
 104         AJI_CONNECT_RELAY,
 105         AJI_CONNECT_SRFLX,
 106 };
 107
 108 struct jingle_pvt {
 109         ast_mutex_t lock;                /*!< Channel private lock */
 110         time_t laststun;
 111         struct jingle *parent;           /*!< Parent client */
 112         char sid[100];
 113         char them[AJI_MAX_JIDLEN];
 114         char ring[10];                   /*!< Message ID of ring */
 115         iksrule *ringrule;               /*!< Rule for matching RING request */
 116         int initiator;                   /*!< If we're the initiator */
 117         int alreadygone;
 118         struct ast_codec_pref prefs;
 119         struct jingle_candidate *theircandidates;
 120         struct jingle_candidate *ourcandidates;
 121         char cid_num[80];                /*!< Caller ID num */
 122         char cid_name[80];               /*!< Caller ID name */
 123         char exten[80];                  /*!< Called extension */
 124         struct ast_channel *owner;       /*!< Master Channel */
 125         char audio_content_name[100];    /*!< name attribute of content tag */
 126         struct ast_rtp_instance *rtp;             /*!< RTP audio session */
 127         char video_content_name[100];    /*!< name attribute of content tag */
 128         struct ast_rtp_instance *vrtp;            /*!< RTP video session */
 129         struct ast_format_cap *cap;
 130         struct ast_format_cap *jointcap;             /*!< Supported capability at both ends (codecs ) */
 131         struct ast_format_cap *peercap;
 132         struct jingle_pvt *next;        /* Next entity */
 133 };
 134
 135 struct jingle_candidate {
 136         unsigned int component;          /*!< ex. : 1 for RTP, 2 for RTCP */
 137         unsigned int foundation;         /*!< Function of IP, protocol, type */
 138         unsigned int generation;
 139         char ip[16];
 140         unsigned int network;
 141         unsigned int port;
 142         unsigned int priority;
 143         enum jingle_protocol protocol;
 144         char password[100];
 145         enum jingle_connect_type type;
 146         char ufrag[100];
 147         unsigned int preference;
 148         struct jingle_candidate *next;
 149 };
 150
 151 struct jingle {
 152         ASTOBJ_COMPONENTS(struct jingle);
 153         struct aji_client *connection;
 154         struct aji_buddy *buddy;
 155         struct jingle_pvt *p;
 156         struct ast_codec_pref prefs;
 157         int amaflags;                   /*!< AMA Flags */
 158         char user[100];
 159         char context[100];
 160         char accountcode[AST_MAX_ACCOUNT_CODE]; /*!< Account code */
 161         struct ast_format_cap *cap;
 162         ast_group_t callgroup;  /*!< Call group */
 163         ast_group_t pickupgroup;        /*!< Pickup group */
 164         int callingpres;                /*!< Calling presentation */
 165         int allowguest;
 166         char language[MAX_LANGUAGE];    /*!<  Default language for prompts */
 167         char musicclass[MAX_MUSICCLASS];        /*!<  Music on Hold class */
 168         char parkinglot[AST_MAX_CONTEXT];   /*!< Parkinglot */
 169 };
 170
 171 struct jingle_container {
 172         ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
 173 };
 174
 175 static const char desc[] = "Jingle Channel";
 176 static const char channel_type[] = "Jingle";
 177
 178 static struct ast_format_cap *global_capability;
 179
 180 AST_MUTEX_DEFINE_STATIC(jinglelock); /*!< Protect the interface list (of jingle_pvt's) */
 181
 182 /* Forward declarations */
 183 static struct ast_channel *jingle_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, const char *data, int *cause);
 184 static int jingle_sendtext(struct ast_channel *ast, const char *text);
 185 static int jingle_digit_begin(struct ast_channel *ast, char digit);
 186 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
 187 static int jingle_call(struct ast_channel *ast, const char *dest, int timeout);
 188 static int jingle_hangup(struct ast_channel *ast);
 189 static int jingle_answer(struct ast_channel *ast);
 190 static int jingle_newcall(struct jingle *client, ikspak *pak);
 191 static struct ast_frame *jingle_read(struct ast_channel *ast);
 192 static int jingle_write(struct ast_channel *ast, struct ast_frame *f);
 193 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
 194 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
 195 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
 196 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid);
 197 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
 198 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
 199
 200 /*! \brief PBX interface structure for channel registration */
 201 static struct ast_channel_tech jingle_tech = {
 202         .type = "Jingle",
 203         .description = "Jingle Channel Driver",
 204         .requester = jingle_request,
 205         .send_text = jingle_sendtext,
 206         .send_digit_begin = jingle_digit_begin,
 207         .send_digit_end = jingle_digit_end,
 208         .bridge = ast_rtp_instance_bridge,
 209         .call = jingle_call,
 210         .hangup = jingle_hangup,
 211         .answer = jingle_answer,
 212         .read = jingle_read,
 213         .write = jingle_write,
 214         .exception = jingle_read,
 215         .indicate = jingle_indicate,
 216         .fixup = jingle_fixup,
 217         .send_html = jingle_sendhtml,
 218         .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
 219 };
 220
 221 static struct sockaddr_in bindaddr = { 0, };    /*!< The address we bind to */
 222
 223 static struct ast_sched_context *sched; /*!< The scheduling context */
 224 static struct io_context *io;   /*!< The IO context */
 225 static struct in_addr __ourip;
 226
 227 static struct ast_cli_entry jingle_cli[] = {
 228         AST_CLI_DEFINE(jingle_do_reload, "Reload Jingle configuration"),
 229         AST_CLI_DEFINE(jingle_show_channels, "Show Jingle channels"),
 230 };
 231
 232
 233 static char externip[16];
 234
 235 static struct jingle_container jingle_list;
 236
 237 static void jingle_member_destroy(struct jingle *obj)
 238 {
 239         obj->cap = ast_format_cap_destroy(obj->cap);
 240         if (obj->connection) {
 241                 ASTOBJ_UNREF(obj->connection, ast_aji_client_destroy);
 242         }
 243         if (obj->buddy) {
 244                 ASTOBJ_UNREF(obj->buddy, ast_aji_buddy_destroy);
 245         }
 246         ast_free(obj);
 247 }
 248
 249 /* XXX This could be a source of reference leaks given that the CONTAINER_FIND
 250  * macros bump the refcount while the traversal does not. */
 251 static struct jingle *find_jingle(char *name, char *connection)
 252 {
 253         struct jingle *jingle = NULL;
 254
 255         jingle = ASTOBJ_CONTAINER_FIND(&jingle_list, name);
 256         if (!jingle && strchr(name, '@'))
 257                 jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingle_list, name, user,,, strcasecmp);
 258
 259         if (!jingle) {
 260                 /* guest call */
 261                 ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
 262                         ASTOBJ_RDLOCK(iterator);
 263                         if (!strcasecmp(iterator->name, "guest")) {
 264                                 jingle = iterator;
 265                         }
 266                         ASTOBJ_UNLOCK(iterator);
 267
 268                         if (jingle)
 269                                 break;
 270                 });
 271
 272         }
 273         return jingle;
 274 }
 275
 276
 277 static void add_codec_to_answer(const struct jingle_pvt *p, struct ast_format *codec, iks *dcodecs)
 278 {
 279         const char *format = ast_getformatname(codec);
 280
 281         if (!strcasecmp("ulaw", format)) {
 282                 iks *payload_eg711u, *payload_pcmu;
 283                 payload_pcmu = iks_new("payload-type");
 284                 iks_insert_attrib(payload_pcmu, "id", "0");
 285                 iks_insert_attrib(payload_pcmu, "name", "PCMU");
 286                 payload_eg711u = iks_new("payload-type");
 287                 iks_insert_attrib(payload_eg711u, "id", "100");
 288                 iks_insert_attrib(payload_eg711u, "name", "EG711U");
 289                 iks_insert_node(dcodecs, payload_pcmu);
 290                 iks_insert_node(dcodecs, payload_eg711u);
 291         }
 292         if (!strcasecmp("alaw", format)) {
 293                 iks *payload_eg711a;
 294                 iks *payload_pcma = iks_new("payload-type");
 295                 iks_insert_attrib(payload_pcma, "id", "8");
 296                 iks_insert_attrib(payload_pcma, "name", "PCMA");
 297                 payload_eg711a = iks_new("payload-type");
 298                 iks_insert_attrib(payload_eg711a, "id", "101");
 299                 iks_insert_attrib(payload_eg711a, "name", "EG711A");
 300                 iks_insert_node(dcodecs, payload_pcma);
 301                 iks_insert_node(dcodecs, payload_eg711a);
 302         }
 303         if (!strcasecmp("ilbc", format)) {
 304                 iks *payload_ilbc = iks_new("payload-type");
 305                 iks_insert_attrib(payload_ilbc, "id", "97");
 306                 iks_insert_attrib(payload_ilbc, "name", "iLBC");
 307                 iks_insert_node(dcodecs, payload_ilbc);
 308         }
 309         if (!strcasecmp("g723", format)) {
 310                 iks *payload_g723 = iks_new("payload-type");
 311                 iks_insert_attrib(payload_g723, "id", "4");
 312                 iks_insert_attrib(payload_g723, "name", "G723");
 313                 iks_insert_node(dcodecs, payload_g723);
 314         }
 315 }
 316
 317 static int jingle_accept_call(struct jingle *client, struct jingle_pvt *p)
 318 {
 319         struct jingle_pvt *tmp = client->p;
 320         struct aji_client *c = client->connection;
 321         iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
 322         int x;
 323         struct ast_format pref_codec;
 324         struct ast_format_cap *alreadysent = ast_format_cap_alloc_nolock();
 325
 326         if (p->initiator || !alreadysent)
 327                 return 1;
 328
 329         iq = iks_new("iq");
 330         jingle = iks_new(JINGLE_NODE);
 331         dcodecs = iks_new("description");
 332         if (iq && jingle && dcodecs) {
 333                 iks_insert_attrib(dcodecs, "xmlns", JINGLE_AUDIO_RTP_NS);
 334
 335                 for (x = 0; x < AST_CODEC_PREF_SIZE; x++) {
 336                         if (!(ast_codec_pref_index(&client->prefs, x, &pref_codec)))
 337                                 break;
 338                         if (!(ast_format_cap_iscompatible(client->cap, &pref_codec)))
 339                                 continue;
 340                         if ((ast_format_cap_iscompatible(alreadysent, &pref_codec)))
 341                                 continue;
 342                         add_codec_to_answer(p, &pref_codec, dcodecs);
 343                         ast_format_cap_add(alreadysent, &pref_codec);
 344                 }
 345                 payload_red = iks_new("payload-type");
 346                 iks_insert_attrib(payload_red, "id", "117");
 347                 iks_insert_attrib(payload_red, "name", "red");
 348                 payload_audio = iks_new("payload-type");
 349                 iks_insert_attrib(payload_audio, "id", "106");
 350                 iks_insert_attrib(payload_audio, "name", "audio/telephone-event");
 351                 payload_cn = iks_new("payload-type");
 352                 iks_insert_attrib(payload_cn, "id", "13");
 353                 iks_insert_attrib(payload_cn, "name", "CN");
 354
 355
 356                 iks_insert_attrib(iq, "type", "set");
 357                 iks_insert_attrib(iq, "to", (p->them) ? p->them : client->user);
 358                 iks_insert_attrib(iq, "id", client->connection->mid);
 359                 ast_aji_increment_mid(client->connection->mid);
 360
 361                 iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
 362                 iks_insert_attrib(jingle, "action", JINGLE_ACCEPT);
 363                 iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
 364                 iks_insert_attrib(jingle, JINGLE_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                 ast_aji_send(c, iq);
 372
 373                 iks_delete(payload_red);
 374                 iks_delete(payload_audio);
 375                 iks_delete(payload_cn);
 376                 iks_delete(dcodecs);
 377                 iks_delete(jingle);
 378                 iks_delete(iq);
 379         }
 380         alreadysent = ast_format_cap_destroy(alreadysent);
 381         return 1;
 382 }
 383
 384 static int jingle_ringing_ack(void *data, ikspak *pak)
 385 {
 386         struct jingle_pvt *p = data;
 387
 388         if (p->ringrule)
 389                 iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
 390         p->ringrule = NULL;
 391         if (p->owner)
 392                 ast_queue_control(p->owner, AST_CONTROL_RINGING);
 393         return IKS_FILTER_EAT;
 394 }
 395
 396 static int jingle_answer(struct ast_channel *ast)
 397 {
 398         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
 399         struct jingle *client = p->parent;
 400         int res = 0;
 401
 402         ast_debug(1, "Answer!\n");
 403         ast_mutex_lock(&p->lock);
 404         jingle_accept_call(client, p);
 405         ast_mutex_unlock(&p->lock);
 406         return res;
 407 }
 408
 409 static enum ast_rtp_glue_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance **instance)
 410 {
 411         struct jingle_pvt *p = ast_channel_tech_pvt(chan);
 412         enum ast_rtp_glue_result res = AST_RTP_GLUE_RESULT_FORBID;
 413
 414         if (!p)
 415                 return res;
 416
 417         ast_mutex_lock(&p->lock);
 418         if (p->rtp) {
 419                 ao2_ref(p->rtp, +1);
 420                 *instance = p->rtp;
 421                 res = AST_RTP_GLUE_RESULT_LOCAL;
 422         }
 423         ast_mutex_unlock(&p->lock);
 424
 425         return res;
 426 }
 427
 428 static void jingle_get_codec(struct ast_channel *chan, struct ast_format_cap *result)
 429 {
 430         struct jingle_pvt *p = ast_channel_tech_pvt(chan);
 431         ast_mutex_lock(&p->lock);
 432         ast_format_cap_copy(result, p->peercap);
 433         ast_mutex_unlock(&p->lock);
 434 }
 435
 436 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance *rtp, struct ast_rtp_instance *vrtp, struct ast_rtp_instance *tpeer, const struct ast_format_cap *cap, int nat_active)
 437 {
 438         struct jingle_pvt *p;
 439
 440         p = ast_channel_tech_pvt(chan);
 441         if (!p)
 442                 return -1;
 443         ast_mutex_lock(&p->lock);
 444
 445 /*      if (rtp)
 446                 ast_rtp_get_peer(rtp, &p->redirip);
 447         else
 448                 memset(&p->redirip, 0, sizeof(p->redirip));
 449         p->redircodecs = codecs; */
 450
 451         /* Reset lastrtprx timer */
 452         ast_mutex_unlock(&p->lock);
 453         return 0;
 454 }
 455
 456 static struct ast_rtp_glue jingle_rtp_glue = {
 457         .type = "Jingle",
 458         .get_rtp_info = jingle_get_rtp_peer,
 459         .get_codec = jingle_get_codec,
 460         .update_peer = jingle_set_rtp_peer,
 461 };
 462
 463 static int jingle_response(struct jingle *client, ikspak *pak, const char *reasonstr, const char *reasonstr2)
 464 {
 465         iks *response = NULL, *error = NULL, *reason = NULL;
 466         int res = -1;
 467
 468         response = iks_new("iq");
 469         if (response) {
 470                 iks_insert_attrib(response, "type", "result");
 471                 iks_insert_attrib(response, "from", client->connection->jid->full);
 472                 iks_insert_attrib(response, "to", iks_find_attrib(pak->x, "from"));
 473                 iks_insert_attrib(response, "id", iks_find_attrib(pak->x, "id"));
 474                 if (reasonstr) {
 475                         error = iks_new("error");
 476                         if (error) {
 477                                 iks_insert_attrib(error, "type", "cancel");
 478                                 reason = iks_new(reasonstr);
 479                                 if (reason)
 480                                         iks_insert_node(error, reason);
 481                                 iks_insert_node(response, error);
 482                         }
 483                 }
 484                 ast_aji_send(client->connection, response);
 485                 res = 0;
 486         }
 487
 488         iks_delete(reason);
 489         iks_delete(error);
 490         iks_delete(response);
 491
 492         return res;
 493 }
 494
 495 static int jingle_is_answered(struct jingle *client, ikspak *pak)
 496 {
 497         struct jingle_pvt *tmp;
 498
 499         ast_debug(1, "The client is %s\n", client->name);
 500         /* Make sure our new call doesn't exist yet */
 501         for (tmp = client->p; tmp; tmp = tmp->next) {
 502                 if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
 503                         break;
 504         }
 505
 506         if (tmp) {
 507                 if (tmp->owner)
 508                         ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
 509         } else
 510                 ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
 511         jingle_response(client, pak, NULL, NULL);
 512         return 1;
 513 }
 514
 515 static int jingle_handle_dtmf(struct jingle *client, ikspak *pak)
 516 {
 517         struct jingle_pvt *tmp;
 518         iks *dtmfnode = NULL, *dtmfchild = NULL;
 519         char *dtmf;
 520         /* Make sure our new call doesn't exist yet */
 521         for (tmp = client->p; tmp; tmp = tmp->next) {
 522                 if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
 523                         break;
 524         }
 525
 526         if (tmp) {
 527                 if(iks_find_with_attrib(pak->x, "dtmf-method", "method", "rtp")) {
 528                         jingle_response(client,pak,
 529                                         "feature-not-implemented xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'",
 530                                         "unsupported-dtmf-method xmlns='http://www.xmpp.org/extensions/xep-0181.html#ns-errors'");
 531                         return -1;
 532                 }
 533                 if ((dtmfnode = iks_find(pak->x, "dtmf"))) {
 534                         if((dtmf = iks_find_attrib(dtmfnode, "code"))) {
 535                                 if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-up")) {
 536                                         struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
 537                                         f.subclass.integer = dtmf[0];
 538                                         ast_queue_frame(tmp->owner, &f);
 539                                         ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
 540                                 } else if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-down")) {
 541                                         struct ast_frame f = {AST_FRAME_DTMF_END, };
 542                                         f.subclass.integer = dtmf[0];
 543                                         ast_queue_frame(tmp->owner, &f);
 544                                         ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
 545                                 } else if(iks_find_attrib(pak->x, "dtmf")) { /* 250 millasecond default */
 546                                         struct ast_frame f = {AST_FRAME_DTMF, };
 547                                         f.subclass.integer = dtmf[0];
 548                                         ast_queue_frame(tmp->owner, &f);
 549                                         ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
 550                                 }
 551                         }
 552                 } else if ((dtmfnode = iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "session-info"))) {
 553                         if((dtmfchild = iks_find(dtmfnode, "dtmf"))) {
 554                                 if((dtmf = iks_find_attrib(dtmfchild, "code"))) {
 555                                         if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-up")) {
 556                                                 struct ast_frame f = {AST_FRAME_DTMF_END, };
 557                                                 f.subclass.integer = dtmf[0];
 558                                                 ast_queue_frame(tmp->owner, &f);
 559                                                 ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
 560                                         } else if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-down")) {
 561                                                 struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
 562                                                 f.subclass.integer = dtmf[0];
 563                                                 ast_queue_frame(tmp->owner, &f);
 564                                                 ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
 565                                         }
 566                                 }
 567                         }
 568                 }
 569                 jingle_response(client, pak, NULL, NULL);
 570                 return 1;
 571         } else
 572                 ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
 573
 574         jingle_response(client, pak, NULL, NULL);
 575         return 1;
 576 }
 577
 578
 579 static int jingle_hangup_farend(struct jingle *client, ikspak *pak)
 580 {
 581         struct jingle_pvt *tmp;
 582
 583         ast_debug(1, "The client is %s\n", client->name);
 584         /* Make sure our new call doesn't exist yet */
 585         for (tmp = client->p; tmp; tmp = tmp->next) {
 586                 if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
 587                         break;
 588         }
 589
 590         if (tmp) {
 591                 tmp->alreadygone = 1;
 592                 if (tmp->owner)
 593                         ast_queue_hangup(tmp->owner);
 594         } else
 595                 ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
 596         jingle_response(client, pak, NULL, NULL);
 597         return 1;
 598 }
 599
 600 static int jingle_create_candidates(struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
 601 {
 602         struct jingle_candidate *tmp;
 603         struct aji_client *c = client->connection;
 604         struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
 605         struct sockaddr_in sin = { 0, };
 606         struct ast_sockaddr sin_tmp;
 607         struct ast_sockaddr us_tmp;
 608         struct ast_sockaddr bindaddr_tmp;
 609         struct in_addr us;
 610         struct in_addr externaddr;
 611         iks *iq, *jingle, *content, *transport, *candidate;
 612         char component[16], foundation[16], generation[16], network[16], pass[16], port[7], priority[16], user[16];
 613
 614
 615         iq = iks_new("iq");
 616         jingle = iks_new(JINGLE_NODE);
 617         content = iks_new("content");
 618         transport = iks_new("transport");
 619         candidate = iks_new("candidate");
 620         if (!iq || !jingle || !content || !transport || !candidate) {
 621                 ast_log(LOG_ERROR, "Memory allocation error\n");
 622                 goto safeout;
 623         }
 624         ours1 = ast_calloc(1, sizeof(*ours1));
 625         ours2 = ast_calloc(1, sizeof(*ours2));
 626         if (!ours1 || !ours2)
 627                 goto safeout;
 628
 629         iks_insert_node(iq, jingle);
 630         iks_insert_node(jingle, content);
 631         iks_insert_node(content, transport);
 632         iks_insert_node(transport, candidate);
 633
 634         for (; p; p = p->next) {
 635                 if (!strcasecmp(p->sid, sid))
 636                         break;
 637         }
 638
 639         if (!p) {
 640                 ast_log(LOG_NOTICE, "No matching jingle session - SID %s!\n", sid);
 641                 goto safeout;
 642         }
 643
 644         ast_rtp_instance_get_local_address(p->rtp, &sin_tmp);
 645         ast_sockaddr_to_sin(&sin_tmp, &sin);
 646         ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
 647         ast_find_ourip(&us_tmp, &bindaddr_tmp, AF_INET);
 648         us.s_addr = htonl(ast_sockaddr_ipv4(&us_tmp));
 649
 650         /* Setup our first jingle candidate */
 651         ours1->component = 1;
 652         ours1->foundation = (unsigned int)bindaddr.sin_addr.s_addr | AJI_CONNECT_HOST | AJI_PROTOCOL_UDP;
 653         ours1->generation = 0;
 654         ast_copy_string(ours1->ip, ast_inet_ntoa(us), sizeof(ours1->ip));
 655         ours1->network = 0;
 656         ours1->port = ntohs(sin.sin_port);
 657         ours1->priority = 1678246398;
 658         ours1->protocol = AJI_PROTOCOL_UDP;
 659         snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
 660         ast_copy_string(ours1->password, pass, sizeof(ours1->password));
 661         ours1->type = AJI_CONNECT_HOST;
 662         snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
 663         ast_copy_string(ours1->ufrag, user, sizeof(ours1->ufrag));
 664         p->ourcandidates = ours1;
 665
 666         if (!ast_strlen_zero(externip)) {
 667                 /* XXX We should really stun for this one not just go with externip XXX */
 668                 if (inet_aton(externip, &externaddr))
 669                         ast_log(LOG_WARNING, "Invalid extern IP : %s\n", externip);
 670
 671                 ours2->component = 1;
 672                 ours2->foundation = (unsigned int)externaddr.s_addr | AJI_CONNECT_PRFLX | AJI_PROTOCOL_UDP;
 673                 ours2->generation = 0;
 674                 ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
 675                 ours2->network = 0;
 676                 ours2->port = ntohs(sin.sin_port);
 677                 ours2->priority = 1678246397;
 678                 ours2->protocol = AJI_PROTOCOL_UDP;
 679                 snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
 680                 ast_copy_string(ours2->password, pass, sizeof(ours2->password));
 681                 ours2->type = AJI_CONNECT_PRFLX;
 682
 683                 snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
 684                 ast_copy_string(ours2->ufrag, user, sizeof(ours2->ufrag));
 685                 ours1->next = ours2;
 686                 ours2 = NULL;
 687         }
 688         ours1 = NULL;
 689
 690         for (tmp = p->ourcandidates; tmp; tmp = tmp->next) {
 691                 snprintf(component, sizeof(component), "%u", tmp->component);
 692                 snprintf(foundation, sizeof(foundation), "%u", tmp->foundation);
 693                 snprintf(generation, sizeof(generation), "%u", tmp->generation);
 694                 snprintf(network, sizeof(network), "%u", tmp->network);
 695                 snprintf(port, sizeof(port), "%u", tmp->port);
 696                 snprintf(priority, sizeof(priority), "%u", tmp->priority);
 697
 698                 iks_insert_attrib(iq, "from", c->jid->full);
 699                 iks_insert_attrib(iq, "to", from);
 700                 iks_insert_attrib(iq, "type", "set");
 701                 iks_insert_attrib(iq, "id", c->mid);
 702                 ast_aji_increment_mid(c->mid);
 703                 iks_insert_attrib(jingle, "action", JINGLE_NEGOTIATE);
 704                 iks_insert_attrib(jingle, JINGLE_SID, sid);
 705                 iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from);
 706                 iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
 707                 iks_insert_attrib(content, "creator", p->initiator ? "initiator" : "responder");
 708                 iks_insert_attrib(content, "name", "asterisk-audio-content");
 709                 iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
 710                 iks_insert_attrib(candidate, "component", component);
 711                 iks_insert_attrib(candidate, "foundation", foundation);
 712                 iks_insert_attrib(candidate, "generation", generation);
 713                 iks_insert_attrib(candidate, "ip", tmp->ip);
 714                 iks_insert_attrib(candidate, "network", network);
 715                 iks_insert_attrib(candidate, "port", port);
 716                 iks_insert_attrib(candidate, "priority", priority);
 717                 switch (tmp->protocol) {
 718                 case AJI_PROTOCOL_UDP:
 719                         iks_insert_attrib(candidate, "protocol", "udp");
 720                         break;
 721                 case AJI_PROTOCOL_SSLTCP:
 722                         iks_insert_attrib(candidate, "protocol", "ssltcp");
 723                         break;
 724                 }
 725                 iks_insert_attrib(candidate, "pwd", tmp->password);
 726                 switch (tmp->type) {
 727                 case AJI_CONNECT_HOST:
 728                         iks_insert_attrib(candidate, "type", "host");
 729                         break;
 730                 case AJI_CONNECT_PRFLX:
 731                         iks_insert_attrib(candidate, "type", "prflx");
 732                         break;
 733                 case AJI_CONNECT_RELAY:
 734                         iks_insert_attrib(candidate, "type", "relay");
 735                         break;
 736                 case AJI_CONNECT_SRFLX:
 737                         iks_insert_attrib(candidate, "type", "srflx");
 738                         break;
 739                 }
 740                 iks_insert_attrib(candidate, "ufrag", tmp->ufrag);
 741
 742                 ast_aji_send(c, iq);
 743         }
 744         p->laststun = 0;
 745
 746 safeout:
 747         if (ours1)
 748                 ast_free(ours1);
 749         if (ours2)
 750                 ast_free(ours2);
 751         iks_delete(iq);
 752         iks_delete(jingle);
 753         iks_delete(content);
 754         iks_delete(transport);
 755         iks_delete(candidate);
 756
 757         return 1;
 758 }
 759
 760 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid)
 761 {
 762         struct jingle_pvt *tmp = NULL;
 763         struct aji_resource *resources = NULL;
 764         struct aji_buddy *buddy = NULL;
 765         char idroster[200];
 766         struct ast_sockaddr bindaddr_tmp;
 767
 768         ast_debug(1, "The client is %s for alloc\n", client->name);
 769         if (!sid && !strchr(from, '/')) {       /* I started call! */
 770                 if (!strcasecmp(client->name, "guest")) {
 771                         buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from);
 772                         if (buddy) {
 773                                 resources = buddy->resources;
 774                         }
 775                 } else if (client->buddy)
 776                         resources = client->buddy->resources;
 777                 while (resources) {
 778                         if (resources->cap->jingle) {
 779                                 break;
 780                         }
 781                         resources = resources->next;
 782                 }
 783                 if (resources)
 784                         snprintf(idroster, sizeof(idroster), "%s/%s", from, resources->resource);
 785                 else {
 786                         ast_log(LOG_ERROR, "no jingle capable clients to talk to.\n");
 787                         if (buddy) {
 788                                 ASTOBJ_UNREF(buddy, ast_aji_buddy_destroy);
 789                         }
 790                         return NULL;
 791                 }
 792                 if (buddy) {
 793                         ASTOBJ_UNREF(buddy, ast_aji_buddy_destroy);
 794                 }
 795         }
 796         if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
 797                 return NULL;
 798         }
 799
 800         tmp->cap = ast_format_cap_alloc_nolock();
 801         tmp->jointcap = ast_format_cap_alloc_nolock();
 802         tmp->peercap = ast_format_cap_alloc_nolock();
 803         if (!tmp->cap || !tmp->jointcap || !tmp->peercap) {
 804                 tmp->cap = ast_format_cap_destroy(tmp->cap);
 805                 tmp->jointcap = ast_format_cap_destroy(tmp->jointcap);
 806                 tmp->peercap = ast_format_cap_destroy(tmp->peercap);
 807                 ast_free(tmp);
 808                 return NULL;
 809         }
 810         memcpy(&tmp->prefs, &client->prefs, sizeof(tmp->prefs));
 811
 812         if (sid) {
 813                 ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
 814                 ast_copy_string(tmp->them, from, sizeof(tmp->them));
 815         } else {
 816                 snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
 817                 ast_copy_string(tmp->them, idroster, sizeof(tmp->them));
 818                 tmp->initiator = 1;
 819         }
 820         ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
 821         tmp->rtp = ast_rtp_instance_new("asterisk", sched, &bindaddr_tmp, NULL);
 822         tmp->parent = client;
 823         if (!tmp->rtp) {
 824                 ast_log(LOG_WARNING, "Out of RTP sessions?\n");
 825                 ast_free(tmp);
 826                 return NULL;
 827         }
 828         ast_copy_string(tmp->exten, "s", sizeof(tmp->exten));
 829         ast_mutex_init(&tmp->lock);
 830         ast_mutex_lock(&jinglelock);
 831         tmp->next = client->p;
 832         client->p = tmp;
 833         ast_mutex_unlock(&jinglelock);
 834         return tmp;
 835 }
 836
 837 /*! \brief Start new jingle channel */
 838 static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title, const char *linkedid)
 839 {
 840         struct ast_channel *tmp;
 841         struct ast_format_cap *what;  /* SHALLOW COPY DO NOT DESTROY */
 842         struct ast_format tmpfmt;
 843         const char *str;
 844
 845         if (title)
 846                 str = title;
 847         else
 848                 str = i->them;
 849         tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "", "", "", linkedid, 0, "Jingle/%s-%04lx", str, ast_random() & 0xffff);
 850         if (!tmp) {
 851                 ast_log(LOG_WARNING, "Unable to allocate Jingle channel structure!\n");
 852                 return NULL;
 853         }
 854         ast_channel_tech_set(tmp, &jingle_tech);
 855
 856         /* Select our native format based on codec preference until we receive
 857            something from another device to the contrary. */
 858         if (!ast_format_cap_is_empty(i->jointcap))
 859                 what = i->jointcap;
 860         else if (!(ast_format_cap_is_empty(i->cap)))
 861                 what = i->cap;
 862         else
 863                 what = global_capability;
 864
 865         /* Set Frame packetization */
 866         if (i->rtp)
 867                 ast_rtp_codecs_packetization_set(ast_rtp_instance_get_codecs(i->rtp), i->rtp, &i->prefs);
 868
 869         ast_codec_choose(&i->prefs, what, 1, &tmpfmt);
 870         ast_format_cap_add(ast_channel_nativeformats(tmp), &tmpfmt);
 871
 872         ast_format_cap_iter_start(i->jointcap);
 873         while (!(ast_format_cap_iter_next(i->jointcap, &tmpfmt))) {
 874                 if (AST_FORMAT_GET_TYPE(tmpfmt.id) == AST_FORMAT_TYPE_VIDEO) {
 875                         ast_format_cap_add(ast_channel_nativeformats(tmp), &tmpfmt);
 876                 }
 877         }
 878         ast_format_cap_iter_end(i->jointcap);
 879
 880         if (i->rtp) {
 881                 ast_channel_set_fd(tmp, 0, ast_rtp_instance_fd(i->rtp, 0));
 882                 ast_channel_set_fd(tmp, 1, ast_rtp_instance_fd(i->rtp, 1));
 883         }
 884         if (i->vrtp) {
 885                 ast_channel_set_fd(tmp, 2, ast_rtp_instance_fd(i->vrtp, 0));
 886                 ast_channel_set_fd(tmp, 3, ast_rtp_instance_fd(i->vrtp, 1));
 887         }
 888         if (state == AST_STATE_RING)
 889                 ast_channel_rings_set(tmp, 1);
 890         ast_channel_adsicpe_set(tmp, AST_ADSI_UNAVAILABLE);
 891
 892
 893         ast_best_codec(ast_channel_nativeformats(tmp), &tmpfmt);
 894         ast_format_copy(ast_channel_writeformat(tmp), &tmpfmt);
 895         ast_format_copy(ast_channel_rawwriteformat(tmp), &tmpfmt);
 896         ast_format_copy(ast_channel_readformat(tmp), &tmpfmt);
 897         ast_format_copy(ast_channel_rawreadformat(tmp), &tmpfmt);
 898         ast_channel_tech_pvt_set(tmp, i);
 899
 900         ast_channel_callgroup_set(tmp, client->callgroup);
 901         ast_channel_pickupgroup_set(tmp, client->pickupgroup);
 902         ast_channel_caller(tmp)->id.name.presentation = client->callingpres;
 903         ast_channel_caller(tmp)->id.number.presentation = client->callingpres;
 904         if (!ast_strlen_zero(client->accountcode))
 905                 ast_channel_accountcode_set(tmp, client->accountcode);
 906         if (client->amaflags)
 907                 ast_channel_amaflags_set(tmp, client->amaflags);
 908         if (!ast_strlen_zero(client->language))
 909                 ast_channel_language_set(tmp, client->language);
 910         if (!ast_strlen_zero(client->musicclass))
 911                 ast_channel_musicclass_set(tmp, client->musicclass);
 912         i->owner = tmp;
 913         ast_channel_context_set(tmp, client->context);
 914         ast_channel_exten_set(tmp, i->exten);
 915         /* Don't use ast_set_callerid() here because it will
 916          * generate an unnecessary NewCallerID event  */
 917         if (!ast_strlen_zero(i->cid_num)) {
 918                 ast_channel_caller(tmp)->ani.number.valid = 1;
 919                 ast_channel_caller(tmp)->ani.number.str = ast_strdup(i->cid_num);
 920         }
 921         if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s")) {
 922                 ast_channel_dialed(tmp)->number.str = ast_strdup(i->exten);
 923         }
 924         ast_channel_priority_set(tmp, 1);
 925         if (i->rtp)
 926                 ast_jb_configure(tmp, &global_jbconf);
 927         if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
 928                 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ast_channel_name(tmp));
 929                 ast_channel_hangupcause_set(tmp, AST_CAUSE_SWITCH_CONGESTION);
 930                 ast_hangup(tmp);
 931                 tmp = NULL;
 932         }
 933
 934         return tmp;
 935 }
 936
 937 static int jingle_action(struct jingle *client, struct jingle_pvt *p, const char *action)
 938 {
 939         iks *iq, *jingle = NULL;
 940         int res = -1;
 941
 942         iq = iks_new("iq");
 943         jingle = iks_new("jingle");
 944
 945         if (iq) {
 946                 iks_insert_attrib(iq, "type", "set");
 947                 iks_insert_attrib(iq, "from", client->connection->jid->full);
 948                 iks_insert_attrib(iq, "to", p->them);
 949                 iks_insert_attrib(iq, "id", client->connection->mid);
 950                 ast_aji_increment_mid(client->connection->mid);
 951                 if (jingle) {
 952                         iks_insert_attrib(jingle, "action", action);
 953                         iks_insert_attrib(jingle, JINGLE_SID, p->sid);
 954                         iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
 955                         iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
 956
 957                         iks_insert_node(iq, jingle);
 958
 959                         ast_aji_send(client->connection, iq);
 960                         res = 0;
 961                 }
 962         }
 963
 964         iks_delete(jingle);
 965         iks_delete(iq);
 966
 967         return res;
 968 }
 969
 970 static void jingle_free_candidates(struct jingle_candidate *candidate)
 971 {
 972         struct jingle_candidate *last;
 973         while (candidate) {
 974                 last = candidate;
 975                 candidate = candidate->next;
 976                 ast_free(last);
 977         }
 978 }
 979
 980 static void jingle_free_pvt(struct jingle *client, struct jingle_pvt *p)
 981 {
 982         struct jingle_pvt *cur, *prev = NULL;
 983         cur = client->p;
 984         while (cur) {
 985                 if (cur == p) {
 986                         if (prev)
 987                                 prev->next = p->next;
 988                         else
 989                                 client->p = p->next;
 990                         break;
 991                 }
 992                 prev = cur;
 993                 cur = cur->next;
 994         }
 995         if (p->ringrule)
 996                 iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
 997         if (p->owner)
 998                 ast_log(LOG_WARNING, "Uh oh, there's an owner, this is going to be messy.\n");
 999         if (p->rtp)
1000                 ast_rtp_instance_destroy(p->rtp);
1001         if (p->vrtp)
1002                 ast_rtp_instance_destroy(p->vrtp);
1003         jingle_free_candidates(p->theircandidates);
1004         p->cap = ast_format_cap_destroy(p->cap);
1005         p->jointcap = ast_format_cap_destroy(p->jointcap);
1006         p->peercap = ast_format_cap_destroy(p->peercap);
1007
1008         ast_free(p);
1009 }
1010
1011
1012 static int jingle_newcall(struct jingle *client, ikspak *pak)
1013 {
1014         struct jingle_pvt *p, *tmp = client->p;
1015         struct ast_channel *chan;
1016         int res;
1017         iks *codec, *content, *description;
1018         char *from = NULL;
1019
1020         /* Make sure our new call doesn't exist yet */
1021         from = iks_find_attrib(pak->x,"to");
1022         if(!from)
1023                 from = client->connection->jid->full;
1024
1025         while (tmp) {
1026                 if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
1027                         ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
1028                         jingle_response(client, pak, "out-of-order", NULL);
1029                         return -1;
1030                 }
1031                 tmp = tmp->next;
1032         }
1033
1034         if (!strcasecmp(client->name, "guest")){
1035                 /* the guest account is not tied to any configured XMPP client,
1036                    let's set it now */
1037                 if (client->connection) {
1038                         ASTOBJ_UNREF(client->connection, ast_aji_client_destroy);
1039                 }
1040                 client->connection = ast_aji_get_client(from);
1041                 if (!client->connection) {
1042                         ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", from);
1043                         return -1;
1044                 }
1045         }
1046
1047         p = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, JINGLE_SID));
1048         if (!p) {
1049                 ast_log(LOG_WARNING, "Unable to allocate jingle structure!\n");
1050                 return -1;
1051         }
1052         chan = jingle_new(client, p, AST_STATE_DOWN, pak->from->user, NULL);
1053         if (!chan) {
1054                 jingle_free_pvt(client, p);
1055                 return -1;
1056         }
1057         ast_mutex_lock(&p->lock);
1058         ast_copy_string(p->them, pak->from->full, sizeof(p->them));
1059         if (iks_find_attrib(pak->query, JINGLE_SID)) {
1060                 ast_copy_string(p->sid, iks_find_attrib(pak->query, JINGLE_SID),
1061                                 sizeof(p->sid));
1062         }
1063
1064         /* content points to the first <content/> tag */
1065         content = iks_child(iks_child(pak->x));
1066         while (content) {
1067                 description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_AUDIO_RTP_NS);
1068                 if (description) {
1069                         /* audio content found */
1070                         codec = iks_child(iks_child(content));
1071                         ast_copy_string(p->audio_content_name, iks_find_attrib(content, "name"), sizeof(p->audio_content_name));
1072
1073                         while (codec) {
1074                                 ast_rtp_codecs_payloads_set_m_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")));
1075                                 ast_rtp_codecs_payloads_set_rtpmap_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
1076                                 codec = iks_next(codec);
1077                         }
1078                 }
1079
1080                 description = NULL;
1081                 codec = NULL;
1082
1083                 description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_VIDEO_RTP_NS);
1084                 if (description) {
1085                         /* video content found */
1086                         codec = iks_child(iks_child(content));
1087                         ast_copy_string(p->video_content_name, iks_find_attrib(content, "name"), sizeof(p->video_content_name));
1088
1089                         while (codec) {
1090                                 ast_rtp_codecs_payloads_set_m_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")));
1091                                 ast_rtp_codecs_payloads_set_rtpmap_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
1092                                 codec = iks_next(codec);
1093                         }
1094                 }
1095
1096                 content = iks_next(content);
1097         }
1098
1099         ast_mutex_unlock(&p->lock);
1100         ast_setstate(chan, AST_STATE_RING);
1101         res = ast_pbx_start(chan);
1102
1103         switch (res) {
1104         case AST_PBX_FAILED:
1105                 ast_log(LOG_WARNING, "Failed to start PBX :(\n");
1106                 jingle_response(client, pak, "service-unavailable", NULL);
1107                 break;
1108         case AST_PBX_CALL_LIMIT:
1109                 ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
1110                 jingle_response(client, pak, "service-unavailable", NULL);
1111                 break;
1112         case AST_PBX_SUCCESS:
1113                 jingle_response(client, pak, NULL, NULL);
1114                 jingle_create_candidates(client, p,
1115                                          iks_find_attrib(pak->query, JINGLE_SID),
1116                                          iks_find_attrib(pak->x, "from"));
1117                 /* nothing to do */
1118                 break;
1119         }
1120
1121         return 1;
1122 }
1123
1124 static int jingle_update_stun(struct jingle *client, struct jingle_pvt *p)
1125 {
1126         struct jingle_candidate *tmp;
1127         struct hostent *hp;
1128         struct ast_hostent ahp;
1129         struct sockaddr_in sin;
1130         struct ast_sockaddr sin_tmp;
1131
1132         if (time(NULL) == p->laststun)
1133                 return 0;
1134
1135         tmp = p->theircandidates;
1136         p->laststun = time(NULL);
1137         while (tmp) {
1138                 char username[256];
1139                 hp = ast_gethostbyname(tmp->ip, &ahp);
1140                 sin.sin_family = AF_INET;
1141                 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
1142                 sin.sin_port = htons(tmp->port);
1143                 snprintf(username, sizeof(username), "%s:%s", tmp->ufrag, p->ourcandidates->ufrag);
1144
1145                 ast_sockaddr_from_sin(&sin_tmp, &sin);
1146                 ast_rtp_instance_stun_request(p->rtp, &sin_tmp, username);
1147                 tmp = tmp->next;
1148         }
1149         return 1;
1150 }
1151
1152 static int jingle_add_candidate(struct jingle *client, ikspak *pak)
1153 {
1154         struct jingle_pvt *p = NULL, *tmp = NULL;
1155         struct aji_client *c = client->connection;
1156         struct jingle_candidate *newcandidate = NULL;
1157         iks *traversenodes = NULL, *receipt = NULL;
1158
1159         for (tmp = client->p; tmp; tmp = tmp->next) {
1160                 if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
1161                         p = tmp;
1162                         break;
1163                 }
1164         }
1165
1166         if (!p)
1167                 return -1;
1168
1169         traversenodes = pak->query;
1170         while(traversenodes) {
1171                 if(!strcasecmp(iks_name(traversenodes), "jingle")) {
1172                         traversenodes = iks_child(traversenodes);
1173                         continue;
1174                 }
1175                 if(!strcasecmp(iks_name(traversenodes), "content")) {
1176                         traversenodes = iks_child(traversenodes);
1177                         continue;
1178                 }
1179                 if(!strcasecmp(iks_name(traversenodes), "transport")) {
1180                         traversenodes = iks_child(traversenodes);
1181                         continue;
1182                 }
1183
1184                 if(!strcasecmp(iks_name(traversenodes), "candidate")) {
1185                         newcandidate = ast_calloc(1, sizeof(*newcandidate));
1186                         if (!newcandidate)
1187                                 return 0;
1188                         ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "ip"), sizeof(newcandidate->ip));
1189                         newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
1190                         ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "pwd"), sizeof(newcandidate->password));
1191                         if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
1192                                 newcandidate->protocol = AJI_PROTOCOL_UDP;
1193                         else if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
1194                                 newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
1195
1196                         if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "host"))
1197                                 newcandidate->type = AJI_CONNECT_HOST;
1198                         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "prflx"))
1199                                 newcandidate->type = AJI_CONNECT_PRFLX;
1200                         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
1201                                 newcandidate->type = AJI_CONNECT_RELAY;
1202                         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "srflx"))
1203                                 newcandidate->type = AJI_CONNECT_SRFLX;
1204
1205                         newcandidate->network = atoi(iks_find_attrib(traversenodes, "network"));
1206                         newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
1207                         newcandidate->next = NULL;
1208
1209                         newcandidate->next = p->theircandidates;
1210                         p->theircandidates = newcandidate;
1211                         p->laststun = 0;
1212                         jingle_update_stun(p->parent, p);
1213                         newcandidate = NULL;
1214                 }
1215                 traversenodes = iks_next(traversenodes);
1216         }
1217
1218         receipt = iks_new("iq");
1219         iks_insert_attrib(receipt, "type", "result");
1220         iks_insert_attrib(receipt, "from", c->jid->full);
1221         iks_insert_attrib(receipt, "to", iks_find_attrib(pak->x, "from"));
1222         iks_insert_attrib(receipt, "id", iks_find_attrib(pak->x, "id"));
1223         ast_aji_send(c, receipt);
1224
1225         iks_delete(receipt);
1226
1227         return 1;
1228 }
1229
1230 static struct ast_frame *jingle_rtp_read(struct ast_channel *ast, struct jingle_pvt *p)
1231 {
1232         struct ast_frame *f;
1233
1234         if (!p->rtp)
1235                 return &ast_null_frame;
1236         f = ast_rtp_instance_read(p->rtp, 0);
1237         jingle_update_stun(p->parent, p);
1238         if (p->owner) {
1239                 /* We already hold the channel lock */
1240                 if (f->frametype == AST_FRAME_VOICE) {
1241                         if (!(ast_format_cap_iscompatible(ast_channel_nativeformats(p->owner), &f->subclass.format))) {
1242                                 ast_debug(1, "Oooh, format changed to %s\n", ast_getformatname(&f->subclass.format));
1243                                 ast_format_cap_remove_bytype(ast_channel_nativeformats(p->owner), AST_FORMAT_TYPE_AUDIO);
1244                                 ast_format_cap_add(ast_channel_nativeformats(p->owner), &f->subclass.format);
1245                                 ast_set_read_format(p->owner, ast_channel_readformat(p->owner));
1246                                 ast_set_write_format(p->owner, ast_channel_writeformat(p->owner));
1247                         }
1248 /*                      if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) {
1249                                 f = ast_dsp_process(p->owner, p->vad, f);
1250                                 if (f && (f->frametype == AST_FRAME_DTMF))
1251                                         ast_debug(1, "* Detected inband DTMF '%c'\n", f->subclass.codec);
1252                         } */
1253                 }
1254         }
1255         return f;
1256 }
1257
1258 static struct ast_frame *jingle_read(struct ast_channel *ast)
1259 {
1260         struct ast_frame *fr;
1261         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
1262
1263         ast_mutex_lock(&p->lock);
1264         fr = jingle_rtp_read(ast, p);
1265         ast_mutex_unlock(&p->lock);
1266         return fr;
1267 }
1268
1269 /*! \brief Send frame to media channel (rtp) */
1270 static int jingle_write(struct ast_channel *ast, struct ast_frame *frame)
1271 {
1272         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
1273         int res = 0;
1274         char buf[256];
1275
1276         switch (frame->frametype) {
1277         case AST_FRAME_VOICE:
1278                 if (!(ast_format_cap_iscompatible(ast_channel_nativeformats(ast), &frame->subclass.format))) {
1279                         ast_log(LOG_WARNING,
1280                                         "Asked to transmit frame type %s, while native formats is %s (read/write = %s/%s)\n",
1281                                         ast_getformatname(&frame->subclass.format),
1282                                         ast_getformatname_multiple(buf, sizeof(buf), ast_channel_nativeformats(ast)),
1283                                         ast_getformatname(ast_channel_readformat(ast)),
1284                                         ast_getformatname(ast_channel_writeformat(ast)));
1285                         return 0;
1286                 }
1287                 if (p) {
1288                         ast_mutex_lock(&p->lock);
1289                         if (p->rtp) {
1290                                 res = ast_rtp_instance_write(p->rtp, frame);
1291                         }
1292                         ast_mutex_unlock(&p->lock);
1293                 }
1294                 break;
1295         case AST_FRAME_VIDEO:
1296                 if (p) {
1297                         ast_mutex_lock(&p->lock);
1298                         if (p->vrtp) {
1299                                 res = ast_rtp_instance_write(p->vrtp, frame);
1300                         }
1301                         ast_mutex_unlock(&p->lock);
1302                 }
1303                 break;
1304         case AST_FRAME_IMAGE:
1305                 return 0;
1306                 break;
1307         default:
1308                 ast_log(LOG_WARNING, "Can't send %d type frames with Jingle write\n",
1309                                 frame->frametype);
1310                 return 0;
1311         }
1312
1313         return res;
1314 }
1315
1316 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1317 {
1318         struct jingle_pvt *p = ast_channel_tech_pvt(newchan);
1319         ast_mutex_lock(&p->lock);
1320
1321         if ((p->owner != oldchan)) {
1322                 ast_mutex_unlock(&p->lock);
1323                 return -1;
1324         }
1325         if (p->owner == oldchan)
1326                 p->owner = newchan;
1327         ast_mutex_unlock(&p->lock);
1328         return 0;
1329 }
1330
1331 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
1332 {
1333         int res = 0;
1334
1335         switch (condition) {
1336         case AST_CONTROL_HOLD:
1337                 ast_moh_start(ast, data, NULL);
1338                 break;
1339         case AST_CONTROL_UNHOLD:
1340                 ast_moh_stop(ast);
1341                 break;
1342         default:
1343                 ast_log(LOG_NOTICE, "Don't know how to indicate condition '%d'\n", condition);
1344                 /* fallthrough */
1345         case AST_CONTROL_PVT_CAUSE_CODE:
1346                 res = -1;
1347         }
1348
1349         return res;
1350 }
1351
1352 static int jingle_sendtext(struct ast_channel *chan, const char *text)
1353 {
1354         int res = 0;
1355         struct aji_client *client = NULL;
1356         struct jingle_pvt *p = ast_channel_tech_pvt(chan);
1357
1358
1359         if (!p->parent) {
1360                 ast_log(LOG_ERROR, "Parent channel not found\n");
1361                 return -1;
1362         }
1363         if (!p->parent->connection) {
1364                 ast_log(LOG_ERROR, "XMPP client not found\n");
1365                 return -1;
1366         }
1367         client = p->parent->connection;
1368         res = ast_aji_send_chat(client, p->them, text);
1369         return res;
1370 }
1371
1372 static int jingle_digit(struct ast_channel *ast, char digit, unsigned int duration)
1373 {
1374         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
1375         struct jingle *client = p->parent;
1376         iks *iq, *jingle, *dtmf;
1377         char buffer[2] = {digit, '\0'};
1378         iq = iks_new("iq");
1379         jingle = iks_new("jingle");
1380         dtmf = iks_new("dtmf");
1381         if(!iq || !jingle || !dtmf) {
1382                 iks_delete(iq);
1383                 iks_delete(jingle);
1384                 iks_delete(dtmf);
1385                 ast_log(LOG_ERROR, "Did not send dtmf do to memory issue\n");
1386                 return -1;
1387         }
1388
1389         iks_insert_attrib(iq, "type", "set");
1390         iks_insert_attrib(iq, "to", p->them);
1391         iks_insert_attrib(iq, "from", client->connection->jid->full);
1392         iks_insert_attrib(iq, "id", client->connection->mid);
1393         ast_aji_increment_mid(client->connection->mid);
1394         iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
1395         iks_insert_attrib(jingle, "action", "session-info");
1396         iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
1397         iks_insert_attrib(jingle, "sid", p->sid);
1398         iks_insert_attrib(dtmf, "xmlns", JINGLE_DTMF_NS);
1399         iks_insert_attrib(dtmf, "code", buffer);
1400         iks_insert_node(iq, jingle);
1401         iks_insert_node(jingle, dtmf);
1402
1403         ast_mutex_lock(&p->lock);
1404         if (ast_channel_dtmff(ast)->frametype == AST_FRAME_DTMF_BEGIN || duration == 0) {
1405                 iks_insert_attrib(dtmf, "action", "button-down");
1406         } else if (ast_channel_dtmff(ast)->frametype == AST_FRAME_DTMF_END || duration != 0) {
1407                 iks_insert_attrib(dtmf, "action", "button-up");
1408         }
1409         ast_aji_send(client->connection, iq);
1410
1411         iks_delete(iq);
1412         iks_delete(jingle);
1413         iks_delete(dtmf);
1414         ast_mutex_unlock(&p->lock);
1415         return 0;
1416 }
1417
1418 static int jingle_digit_begin(struct ast_channel *chan, char digit)
1419 {
1420         return jingle_digit(chan, digit, 0);
1421 }
1422
1423 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
1424 {
1425         return jingle_digit(ast, digit, duration);
1426 }
1427
1428 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
1429 {
1430         ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");
1431
1432         return -1;
1433 }
1434 static int jingle_transmit_invite(struct jingle_pvt *p)
1435 {
1436         struct jingle *aux = NULL;
1437         struct aji_client *client = NULL;
1438         iks *iq, *jingle, *content, *description, *transport;
1439         iks *payload_eg711u, *payload_pcmu;
1440
1441         aux = p->parent;
1442         client = aux->connection;
1443         iq = iks_new("iq");
1444         jingle = iks_new(JINGLE_NODE);
1445         content = iks_new("content");
1446         description = iks_new("description");
1447         transport = iks_new("transport");
1448         payload_pcmu = iks_new("payload-type");
1449         payload_eg711u = iks_new("payload-type");
1450
1451         ast_copy_string(p->audio_content_name, "asterisk-audio-content", sizeof(p->audio_content_name));
1452
1453         iks_insert_attrib(iq, "type", "set");
1454         iks_insert_attrib(iq, "to", p->them);
1455         iks_insert_attrib(iq, "from", client->jid->full);
1456         iks_insert_attrib(iq, "id", client->mid);
1457         ast_aji_increment_mid(client->mid);
1458         iks_insert_attrib(jingle, "action", JINGLE_INITIATE);
1459         iks_insert_attrib(jingle, JINGLE_SID, p->sid);
1460         iks_insert_attrib(jingle, "initiator", client->jid->full);
1461         iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
1462
1463         /* For now, we only send one audio based content */
1464         iks_insert_attrib(content, "creator", "initiator");
1465         iks_insert_attrib(content, "name", p->audio_content_name);
1466         iks_insert_attrib(content, "profile", "RTP/AVP");
1467         iks_insert_attrib(description, "xmlns", JINGLE_AUDIO_RTP_NS);
1468         iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
1469         iks_insert_attrib(payload_pcmu, "id", "0");
1470         iks_insert_attrib(payload_pcmu, "name", "PCMU");
1471         iks_insert_attrib(payload_eg711u, "id", "100");
1472         iks_insert_attrib(payload_eg711u, "name", "EG711U");
1473         iks_insert_node(description, payload_pcmu);
1474         iks_insert_node(description, payload_eg711u);
1475         iks_insert_node(content, description);
1476         iks_insert_node(content, transport);
1477         iks_insert_node(jingle, content);
1478         iks_insert_node(iq, jingle);
1479
1480         ast_aji_send(client, iq);
1481
1482         iks_delete(iq);
1483         iks_delete(jingle);
1484         iks_delete(content);
1485         iks_delete(description);
1486         iks_delete(transport);
1487         iks_delete(payload_eg711u);
1488         iks_delete(payload_pcmu);
1489         return 0;
1490 }
1491
1492 /* Not in use right now.
1493 static int jingle_auto_congest(void *nothing)
1494 {
1495         struct jingle_pvt *p = nothing;
1496
1497         ast_mutex_lock(&p->lock);
1498         if (p->owner) {
1499                 if (!ast_channel_trylock(p->owner)) {
1500                         ast_log(LOG_NOTICE, "Auto-congesting %s\n", p->owner->name);
1501                         ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
1502                         ast_channel_unlock(p->owner);
1503                 }
1504         }
1505         ast_mutex_unlock(&p->lock);
1506         return 0;
1507 }
1508 */
1509
1510 /*! \brief Initiate new call, part of PBX interface
1511  *      dest is the dial string */
1512 static int jingle_call(struct ast_channel *ast, const char *dest, int timeout)
1513 {
1514         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
1515
1516         if ((ast_channel_state(ast) != AST_STATE_DOWN) && (ast_channel_state(ast) != AST_STATE_RESERVED)) {
1517                 ast_log(LOG_WARNING, "jingle_call called on %s, neither down nor reserved\n", ast_channel_name(ast));
1518                 return -1;
1519         }
1520
1521         ast_setstate(ast, AST_STATE_RING);
1522         ast_format_cap_copy(p->jointcap, p->cap);
1523         if (!p->ringrule) {
1524                 ast_copy_string(p->ring, p->parent->connection->mid, sizeof(p->ring));
1525                 p->ringrule = iks_filter_add_rule(p->parent->connection->f, jingle_ringing_ack, p,
1526                                                         IKS_RULE_ID, p->ring, IKS_RULE_DONE);
1527         } else
1528                 ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");
1529
1530         jingle_transmit_invite(p);
1531         jingle_create_candidates(p->parent, p, p->sid, p->them);
1532
1533         return 0;
1534 }
1535
1536 /*! \brief Hangup a call through the jingle proxy channel */
1537 static int jingle_hangup(struct ast_channel *ast)
1538 {
1539         struct jingle_pvt *p = ast_channel_tech_pvt(ast);
1540         struct jingle *client;
1541
1542         ast_mutex_lock(&p->lock);
1543         client = p->parent;
1544         p->owner = NULL;
1545         ast_channel_tech_pvt_set(ast, NULL);
1546         if (!p->alreadygone)
1547                 jingle_action(client, p, JINGLE_TERMINATE);
1548         ast_mutex_unlock(&p->lock);
1549
1550         jingle_free_pvt(client, p);
1551
1552         return 0;
1553 }
1554
1555 /*! \brief Part of PBX interface */
1556 static struct ast_channel *jingle_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, const char *data, int *cause)
1557 {
1558         struct jingle_pvt *p = NULL;
1559         struct jingle *client = NULL;
1560         char *sender = NULL, *to = NULL, *s = NULL;
1561         struct ast_channel *chan = NULL;
1562
1563         if (data) {
1564                 s = ast_strdupa(data);
1565                 sender = strsep(&s, "/");
1566                 if (sender && (sender[0] != '\0'))
1567                         to = strsep(&s, "/");
1568                 if (!to) {
1569                         ast_log(LOG_ERROR, "Bad arguments in Jingle Dialstring: %s\n", data);
1570                         return NULL;
1571                 }
1572                 if (!to) {
1573                         ast_log(LOG_ERROR, "Bad arguments in Jingle Dialstring: %s\n", (char*) data);
1574                         return NULL;
1575                 }
1576         }
1577
1578         client = find_jingle(to, sender);
1579         if (!client) {
1580                 ast_log(LOG_WARNING, "Could not find recipient.\n");
1581                 return NULL;
1582         }
1583         if (!strcasecmp(client->name, "guest")){
1584                 /* the guest account is not tied to any configured XMPP client,
1585                    let's set it now */
1586                 if (client->connection) {
1587                         ASTOBJ_UNREF(client->connection, ast_aji_client_destroy);
1588                 }
1589                 client->connection = ast_aji_get_client(sender);
1590                 if (!client->connection) {
1591                         ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", sender);
1592                         return NULL;
1593                 }
1594         }
1595
1596         ASTOBJ_WRLOCK(client);
1597         p = jingle_alloc(client, to, NULL);
1598         if (p)
1599                 chan = jingle_new(client, p, AST_STATE_DOWN, to, requestor ? ast_channel_linkedid(requestor) : NULL);
1600         ASTOBJ_UNLOCK(client);
1601
1602         return chan;
1603 }
1604
1605 /*! \brief CLI command "jingle show channels" */
1606 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1607 {
1608 #define FORMAT  "%-30.30s  %-30.30s  %-15.15s  %-5.5s %-5.5s \n"
1609         struct jingle_pvt *p;
1610         struct ast_channel *chan;
1611         int numchans = 0;
1612         char them[AJI_MAX_JIDLEN];
1613         char *jid = NULL;
1614         char *resource = NULL;
1615
1616         switch (cmd) {
1617         case CLI_INIT:
1618                 e->command = "jingle show channels";
1619                 e->usage =
1620                         "Usage: jingle show channels\n"
1621                         "       Shows current state of the Jingle channels.\n";
1622                 return NULL;
1623         case CLI_GENERATE:
1624                 return NULL;
1625         }
1626
1627         if (a->argc != 3)
1628                 return CLI_SHOWUSAGE;
1629
1630         ast_mutex_lock(&jinglelock);
1631         ast_cli(a->fd, FORMAT, "Channel", "Jabber ID", "Resource", "Read", "Write");
1632         ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
1633                 ASTOBJ_WRLOCK(iterator);
1634                 p = iterator->p;
1635                 while(p) {
1636                         chan = p->owner;
1637                         ast_copy_string(them, p->them, sizeof(them));
1638                         jid = them;
1639                         resource = strchr(them, '/');
1640                         if (!resource)
1641                                 resource = "None";
1642                         else {
1643                                 *resource = '\0';
1644                                 resource ++;
1645                         }
1646                         if (chan)
1647                                 ast_cli(a->fd, FORMAT,
1648                                         ast_channel_name(chan),
1649                                         jid,
1650                                         resource,
1651                                         ast_getformatname(ast_channel_readformat(chan)),
1652                                         ast_getformatname(ast_channel_writeformat(chan))
1653                                         );
1654                         else
1655                                 ast_log(LOG_WARNING, "No available channel\n");
1656                         numchans ++;
1657                         p = p->next;
1658                 }
1659                 ASTOBJ_UNLOCK(iterator);
1660         });
1661
1662         ast_mutex_unlock(&jinglelock);
1663
1664         ast_cli(a->fd, "%d active jingle channel%s\n", numchans, (numchans != 1) ? "s" : "");
1665         return CLI_SUCCESS;
1666 #undef FORMAT
1667 }
1668
1669 /*! \brief CLI command "jingle reload" */
1670 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1671 {
1672         switch (cmd) {
1673         case CLI_INIT:
1674                 e->command = "jingle reload";
1675                 e->usage =
1676                         "Usage: jingle reload\n"
1677                         "       Reload jingle channel driver.\n";
1678                 return NULL;
1679         case CLI_GENERATE:
1680                 return NULL;
1681         }
1682
1683         return CLI_SUCCESS;
1684 }
1685
1686 static int jingle_parser(void *data, ikspak *pak)
1687 {
1688         struct jingle *client = ASTOBJ_REF((struct jingle *) data);
1689         ast_log(LOG_NOTICE, "Filter matched\n");
1690
1691         if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INITIATE)) {
1692                 /* New call */
1693                 jingle_newcall(client, pak);
1694         } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_NEGOTIATE)) {
1695                 ast_debug(3, "About to add candidate!\n");
1696                 jingle_add_candidate(client, pak);
1697                 ast_debug(3, "Candidate Added!\n");
1698         } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_ACCEPT)) {
1699                 jingle_is_answered(client, pak);
1700         } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INFO)) {
1701                 jingle_handle_dtmf(client, pak);
1702         } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_TERMINATE)) {
1703                 jingle_hangup_farend(client, pak);
1704         } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "reject")) {
1705                 jingle_hangup_farend(client, pak);
1706         }
1707         ASTOBJ_UNREF(client, jingle_member_destroy);
1708         return IKS_FILTER_EAT;
1709 }
1710 /* Not using this anymore probably take out soon
1711 static struct jingle_candidate *jingle_create_candidate(char *args)
1712 {
1713         char *name, *type, *preference, *protocol;
1714         struct jingle_candidate *res;
1715         res = ast_calloc(1, sizeof(*res));
1716         if (args)
1717                 name = args;
1718         if ((args = strchr(args, ','))) {
1719                 *args = '\0';
1720                 args++;
1721                 preference = args;
1722         }
1723         if ((args = strchr(args, ','))) {
1724                 *args = '\0';
1725                 args++;
1726                 protocol = args;
1727         }
1728         if ((args = strchr(args, ','))) {
1729                 *args = '\0';
1730                 args++;
1731                 type = args;
1732         }
1733         if (name)
1734                 ast_copy_string(res->name, name, sizeof(res->name));
1735         if (preference) {
1736                 res->preference = atof(preference);
1737         }
1738         if (protocol) {
1739                 if (!strcasecmp("udp", protocol))
1740                         res->protocol = AJI_PROTOCOL_UDP;
1741                 if (!strcasecmp("ssltcp", protocol))
1742                         res->protocol = AJI_PROTOCOL_SSLTCP;
1743         }
1744         if (type) {
1745                 if (!strcasecmp("host", type))
1746                         res->type = AJI_CONNECT_HOST;
1747                 if (!strcasecmp("prflx", type))
1748                         res->type = AJI_CONNECT_PRFLX;
1749                 if (!strcasecmp("relay", type))
1750                         res->type = AJI_CONNECT_RELAY;
1751                 if (!strcasecmp("srflx", type))
1752                         res->type = AJI_CONNECT_SRFLX;
1753         }
1754
1755         return res;
1756 }
1757 */
1758
1759 static int jingle_create_member(char *label, struct ast_variable *var, int allowguest,
1760                                                                 struct ast_codec_pref prefs, char *context,
1761                                                                 struct jingle *member)
1762 {
1763         struct aji_client *client;
1764
1765         if (!member)
1766                 ast_log(LOG_WARNING, "Out of memory.\n");
1767
1768         ast_copy_string(member->name, label, sizeof(member->name));
1769         ast_copy_string(member->user, label, sizeof(member->user));
1770         ast_copy_string(member->context, context, sizeof(member->context));
1771         member->allowguest = allowguest;
1772         member->prefs = prefs;
1773         while (var) {
1774 #if 0
1775                 struct jingle_candidate *candidate = NULL;
1776 #endif
1777                 if (!strcasecmp(var->name, "username"))
1778                         ast_copy_string(member->user, var->value, sizeof(member->user));
1779                 else if (!strcasecmp(var->name, "disallow"))
1780                         ast_parse_allow_disallow(&member->prefs, member->cap, var->value, 0);
1781                 else if (!strcasecmp(var->name, "allow"))
1782                         ast_parse_allow_disallow(&member->prefs, member->cap, var->value, 1);
1783                 else if (!strcasecmp(var->name, "context"))
1784                         ast_copy_string(member->context, var->value, sizeof(member->context));
1785 #if 0
1786                 else if (!strcasecmp(var->name, "candidate")) {
1787                         candidate = jingle_create_candidate(var->value);
1788                         if (candidate) {
1789                                 candidate->next = member->ourcandidates;
1790                                 member->ourcandidates = candidate;
1791                         }
1792                 }
1793 #endif
1794                 else if (!strcasecmp(var->name, "connection")) {
1795                         if ((client = ast_aji_get_client(var->value))) {
1796                                 member->connection = client;
1797                                 iks_filter_add_rule(client->f, jingle_parser, member,
1798                                                     IKS_RULE_TYPE, IKS_PAK_IQ,
1799                                                     IKS_RULE_FROM_PARTIAL, member->user,
1800                                                     IKS_RULE_NS, JINGLE_NS,
1801                                                     IKS_RULE_DONE);
1802                         } else {
1803                                 ast_log(LOG_ERROR, "connection referenced not found!\n");
1804                                 return 0;
1805                         }
1806                 }
1807                 var = var->next;
1808         }
1809         if (member->connection && member->user)
1810                 member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user);
1811         else {
1812                 ast_log(LOG_ERROR, "No Connection or Username!\n");
1813         }
1814         return 1;
1815 }
1816
1817 static int jingle_load_config(void)
1818 {
1819         char *cat = NULL;
1820         struct ast_config *cfg = NULL;
1821         char context[100];
1822         int allowguest = 1;
1823         struct ast_variable *var;
1824         struct jingle *member;
1825         struct hostent *hp;
1826         struct ast_hostent ahp;
1827         struct ast_codec_pref prefs;
1828         struct aji_client_container *clients;
1829         struct jingle_candidate *global_candidates = NULL;
1830         struct ast_flags config_flags = { 0 };
1831
1832         cfg = ast_config_load(JINGLE_CONFIG, config_flags);
1833         if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
1834                 return 0;
1835         }
1836
1837         /* Copy the default jb config over global_jbconf */
1838         memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
1839
1840         cat = ast_category_browse(cfg, NULL);
1841         for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
1842                 /* handle jb conf */
1843                 if (!ast_jb_read_conf(&global_jbconf, var->name, var->value))
1844                         continue;
1845
1846                 if (!strcasecmp(var->name, "allowguest"))
1847                         allowguest =
1848                                 (ast_true(ast_variable_retrieve(cfg, "general", "allowguest"))) ? 1 : 0;
1849                 else if (!strcasecmp(var->name, "disallow"))
1850                         ast_parse_allow_disallow(&prefs, global_capability, var->value, 0);
1851                 else if (!strcasecmp(var->name, "allow"))
1852                         ast_parse_allow_disallow(&prefs, global_capability, var->value, 1);
1853                 else if (!strcasecmp(var->name, "context"))
1854                         ast_copy_string(context, var->value, sizeof(context));
1855                 else if (!strcasecmp(var->name, "externip"))
1856                         ast_copy_string(externip, var->value, sizeof(externip));
1857                 else if (!strcasecmp(var->name, "bindaddr")) {
1858                         if (!(hp = ast_gethostbyname(var->value, &ahp))) {
1859                                 ast_log(LOG_WARNING, "Invalid address: %s\n", var->value);
1860                         } else {
1861                                 memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
1862                         }
1863                 }
1864 /*  Idea to allow for custom candidates  */
1865 /*
1866                 else if (!strcasecmp(var->name, "candidate")) {
1867                         candidate = jingle_create_candidate(var->value);
1868                         if (candidate) {
1869                                 candidate->next = global_candidates;
1870                                 global_candidates = candidate;
1871                         }
1872                 }
1873 */
1874         }
1875         while (cat) {
1876                 if (strcasecmp(cat, "general")) {
1877                         var = ast_variable_browse(cfg, cat);
1878                         member = ast_calloc(1, sizeof(*member));
1879                         ASTOBJ_INIT(member);
1880                         ASTOBJ_WRLOCK(member);
1881                         member->cap = ast_format_cap_alloc_nolock();
1882                         if (!strcasecmp(cat, "guest")) {
1883                                 ast_copy_string(member->name, "guest", sizeof(member->name));
1884                                 ast_copy_string(member->user, "guest", sizeof(member->user));
1885                                 ast_copy_string(member->context, context, sizeof(member->context));
1886                                 member->allowguest = allowguest;
1887                                 member->prefs = prefs;
1888                                 while (var) {
1889                                         if (!strcasecmp(var->name, "disallow"))
1890                                                 ast_parse_allow_disallow(&member->prefs, member->cap,
1891                                                                                                  var->value, 0);
1892                                         else if (!strcasecmp(var->name, "allow"))
1893                                                 ast_parse_allow_disallow(&member->prefs, member->cap,
1894                                                                                                  var->value, 1);
1895                                         else if (!strcasecmp(var->name, "context"))
1896                                                 ast_copy_string(member->context, var->value,
1897                                                                                 sizeof(member->context));
1898                                         else if (!strcasecmp(var->name, "parkinglot"))
1899                                                 ast_copy_string(member->parkinglot, var->value,
1900                                                                                 sizeof(member->parkinglot));
1901 /*  Idea to allow for custom candidates  */
1902 /*
1903                                         else if (!strcasecmp(var->name, "candidate")) {
1904                                                 candidate = jingle_create_candidate(var->value);
1905                                                 if (candidate) {
1906                                                         candidate->next = member->ourcandidates;
1907                                                         member->ourcandidates = candidate;
1908                                                 }
1909                                         }
1910 */
1911                                         var = var->next;
1912                                 }
1913                                 ASTOBJ_UNLOCK(member);
1914                                 clients = ast_aji_get_clients();
1915                                 if (clients) {
1916                                         ASTOBJ_CONTAINER_TRAVERSE(clients, 1, {
1917                                                 ASTOBJ_WRLOCK(iterator);
1918                                                 ASTOBJ_WRLOCK(member);
1919                                                 if (member->connection) {
1920                                                         ASTOBJ_UNREF(member->connection, ast_aji_client_destroy);
1921                                                 }
1922                                                 member->connection = NULL;
1923                                                 iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_NS, IKS_RULE_DONE);
1924                                                 iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_DTMF_NS, IKS_RULE_DONE);
1925                                                 ASTOBJ_UNLOCK(member);
1926                                                 ASTOBJ_UNLOCK(iterator);
1927                                         });
1928                                         ASTOBJ_CONTAINER_LINK(&jingle_list, member);
1929                                 } else {
1930                                         ASTOBJ_UNLOCK(member);
1931                                         ASTOBJ_UNREF(member, jingle_member_destroy);
1932                                 }
1933                         } else {
1934                                 ASTOBJ_UNLOCK(member);
1935                                 if (jingle_create_member(cat, var, allowguest, prefs, context, member))
1936                                         ASTOBJ_CONTAINER_LINK(&jingle_list, member);
1937                                 ASTOBJ_UNREF(member, jingle_member_destroy);
1938                         }
1939                 }
1940                 cat = ast_category_browse(cfg, cat);
1941         }
1942         ast_config_destroy(cfg);
1943         jingle_free_candidates(global_candidates);
1944         return 1;
1945 }
1946
1947 /*!
1948  * \brief Load the module
1949  *
1950  * Module loading including tests for configuration or dependencies.
1951  * This function can return AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_DECLINE,
1952  * or AST_MODULE_LOAD_SUCCESS. If a dependency or environment variable fails
1953  * tests return AST_MODULE_LOAD_FAILURE. If the module can not load the
1954  * configuration file or other non-critical problem return
1955  * AST_MODULE_LOAD_DECLINE. On success return AST_MODULE_LOAD_SUCCESS.
1956  */
1957 static int load_module(void)
1958 {
1959         struct ast_sockaddr ourip_tmp;
1960         struct ast_sockaddr bindaddr_tmp;
1961         struct ast_format tmpfmt;
1962
1963         char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
1964
1965         if (!(jingle_tech.capabilities = ast_format_cap_alloc())) {
1966                 return AST_MODULE_LOAD_DECLINE;
1967         }
1968
1969         ast_format_cap_add_all_by_type(jingle_tech.capabilities, AST_FORMAT_TYPE_AUDIO);
1970         if (!(global_capability = ast_format_cap_alloc())) {
1971                 return AST_MODULE_LOAD_DECLINE;
1972         }
1973         ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_ULAW, 0));
1974         ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_GSM, 0));
1975         ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_ALAW, 0));
1976         ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_H263, 0));
1977
1978         free(jabber_loaded);
1979         if (!jabber_loaded) {
1980                 /* Dependency module has a different name, if embedded */
1981                 jabber_loaded = ast_module_helper("", "res_jabber", 0, 0, 0, 0);
1982                 free(jabber_loaded);
1983                 if (!jabber_loaded) {
1984                         ast_log(LOG_ERROR, "chan_jingle.so depends upon res_jabber.so\n");
1985                         return AST_MODULE_LOAD_DECLINE;
1986                 }
1987         }
1988
1989         ASTOBJ_CONTAINER_INIT(&jingle_list);
1990         if (!jingle_load_config()) {
1991                 ast_log(LOG_ERROR, "Unable to read config file %s. Not loading module.\n", JINGLE_CONFIG);
1992                 return AST_MODULE_LOAD_DECLINE;
1993         }
1994
1995         sched = ast_sched_context_create();
1996         if (!sched) {
1997                 ast_log(LOG_WARNING, "Unable to create schedule context\n");
1998         }
1999
2000         io = io_context_create();
2001         if (!io) {
2002                 ast_log(LOG_WARNING, "Unable to create I/O context\n");
2003         }
2004
2005         ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
2006         if (ast_find_ourip(&ourip_tmp, &bindaddr_tmp, AF_INET)) {
2007                 ast_log(LOG_WARNING, "Unable to get own IP address, Jingle disabled\n");
2008                 return 0;
2009         }
2010         __ourip.s_addr = htonl(ast_sockaddr_ipv4(&ourip_tmp));
2011
2012         ast_rtp_glue_register(&jingle_rtp_glue);
2013         ast_cli_register_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
2014         /* Make sure we can register our channel type */
2015         if (ast_channel_register(&jingle_tech)) {
2016                 ast_log(LOG_ERROR, "Unable to register channel class %s\n", channel_type);
2017                 return -1;
2018         }
2019         return 0;
2020 }
2021
2022 /*! \brief Reload module */
2023 static int reload(void)
2024 {
2025         return 0;
2026 }
2027
2028 /*! \brief Unload the jingle channel from Asterisk */
2029 static int unload_module(void)
2030 {
2031         struct jingle_pvt *privates = NULL;
2032         ast_cli_unregister_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
2033         /* First, take us out of the channel loop */
2034         ast_channel_unregister(&jingle_tech);
2035         ast_rtp_glue_unregister(&jingle_rtp_glue);
2036
2037         if (!ast_mutex_lock(&jinglelock)) {
2038                 /* Hangup all interfaces if they have an owner */
2039                 ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
2040                         ASTOBJ_WRLOCK(iterator);
2041                         privates = iterator->p;
2042                         while(privates) {
2043                                 if (privates->owner)
2044                                         ast_softhangup(privates->owner, AST_SOFTHANGUP_APPUNLOAD);
2045                                 privates = privates->next;
2046                         }
2047                         iterator->p = NULL;
2048                         ASTOBJ_UNLOCK(iterator);
2049                 });
2050                 ast_mutex_unlock(&jinglelock);
2051         } else {
2052                 ast_log(LOG_WARNING, "Unable to lock the monitor\n");
2053                 return -1;
2054         }
2055         ASTOBJ_CONTAINER_DESTROYALL(&jingle_list, jingle_member_destroy);
2056         ASTOBJ_CONTAINER_DESTROY(&jingle_list);
2057
2058         global_capability = ast_format_cap_destroy(global_capability);
2059         return 0;
2060 }
2061
2062 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Jingle Channel Driver",
2063                 .load = load_module,
2064                 .unload = unload_module,
2065                 .reload = reload,
2066                 .load_pri = AST_MODPRI_CHANNEL_DRIVER,
2067                );