Thu Jul 9 13:40:27 2009

Asterisk developer's documentation


chan_jingle.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2005, Digium, Inc.
00005  *
00006  * Matt O'Gorman <mogorman@digium.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*! \file
00020  *
00021  * \author Matt O'Gorman <mogorman@digium.com>
00022  *
00023  * \brief Jingle Channel Driver
00024  *
00025  * \extref Iksemel http://iksemel.jabberstudio.org/
00026  * 
00027  * \ingroup channel_drivers
00028  */
00029 
00030 /*** MODULEINFO
00031    <depend>iksemel</depend>
00032    <depend>res_jabber</depend>
00033    <use>openssl</use>
00034  ***/
00035 
00036 #include "asterisk.h"
00037 
00038 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 130130 $")
00039 
00040 #include <sys/socket.h>
00041 #include <fcntl.h>
00042 #include <netdb.h>
00043 #include <netinet/in.h>
00044 #include <arpa/inet.h>
00045 #include <sys/signal.h>
00046 #include <iksemel.h>
00047 #include <pthread.h>
00048 
00049 #include "asterisk/lock.h"
00050 #include "asterisk/channel.h"
00051 #include "asterisk/config.h"
00052 #include "asterisk/module.h"
00053 #include "asterisk/pbx.h"
00054 #include "asterisk/sched.h"
00055 #include "asterisk/io.h"
00056 #include "asterisk/rtp.h"
00057 #include "asterisk/acl.h"
00058 #include "asterisk/callerid.h"
00059 #include "asterisk/file.h"
00060 #include "asterisk/cli.h"
00061 #include "asterisk/app.h"
00062 #include "asterisk/musiconhold.h"
00063 #include "asterisk/manager.h"
00064 #include "asterisk/stringfields.h"
00065 #include "asterisk/utils.h"
00066 #include "asterisk/causes.h"
00067 #include "asterisk/astobj.h"
00068 #include "asterisk/abstract_jb.h"
00069 #include "asterisk/jabber.h"
00070 #include "asterisk/jingle.h"
00071 
00072 #define JINGLE_CONFIG "jingle.conf"
00073 
00074 /*! Global jitterbuffer configuration - by default, jb is disabled */
00075 static struct ast_jb_conf default_jbconf =
00076 {
00077    .flags = 0,
00078    .max_size = -1,
00079    .resync_threshold = -1,
00080    .impl = ""
00081 };
00082 static struct ast_jb_conf global_jbconf;
00083 
00084 enum jingle_protocol {
00085    AJI_PROTOCOL_UDP,
00086    AJI_PROTOCOL_SSLTCP,
00087 };
00088 
00089 enum jingle_connect_type {
00090    AJI_CONNECT_HOST,
00091    AJI_CONNECT_PRFLX,
00092    AJI_CONNECT_RELAY,
00093    AJI_CONNECT_SRFLX,
00094 };
00095 
00096 struct jingle_pvt {
00097    ast_mutex_t lock;                /*!< Channel private lock */
00098    time_t laststun;
00099    struct jingle *parent;           /*!< Parent client */
00100    char sid[100];
00101    char them[AJI_MAX_JIDLEN];
00102    char ring[10];                   /*!< Message ID of ring */
00103    iksrule *ringrule;               /*!< Rule for matching RING request */
00104    int initiator;                   /*!< If we're the initiator */
00105    int alreadygone;
00106    int capability;
00107    struct ast_codec_pref prefs;
00108    struct jingle_candidate *theircandidates;
00109    struct jingle_candidate *ourcandidates;
00110    char cid_num[80];                /*!< Caller ID num */
00111    char cid_name[80];               /*!< Caller ID name */
00112    char exten[80];                  /*!< Called extension */
00113    struct ast_channel *owner;       /*!< Master Channel */
00114    char audio_content_name[100];    /*!< name attribute of content tag */
00115    struct ast_rtp *rtp;             /*!< RTP audio session */
00116    char video_content_name[100];    /*!< name attribute of content tag */
00117    struct ast_rtp *vrtp;            /*!< RTP video session */
00118    int jointcapability;             /*!< Supported capability at both ends (codecs ) */
00119    int peercapability;
00120    struct jingle_pvt *next;   /* Next entity */
00121 };
00122 
00123 struct jingle_candidate {
00124    unsigned int component;          /*!< ex. : 1 for RTP, 2 for RTCP */
00125    unsigned int foundation;         /*!< Function of IP, protocol, type */
00126    unsigned int generation;
00127    char ip[16];
00128    unsigned int network;
00129    unsigned int port;
00130    unsigned int priority;
00131    enum jingle_protocol protocol;
00132    char password[100];
00133    enum jingle_connect_type type;
00134    char ufrag[100];
00135    unsigned int preference;
00136    struct jingle_candidate *next;
00137 };
00138 
00139 struct jingle {
00140    ASTOBJ_COMPONENTS(struct jingle);
00141    struct aji_client *connection;
00142    struct aji_buddy *buddy;
00143    struct jingle_pvt *p;
00144    struct ast_codec_pref prefs;
00145    int amaflags;        /*!< AMA Flags */
00146    char user[100];
00147    char context[100];
00148    char accountcode[AST_MAX_ACCOUNT_CODE];   /*!< Account code */
00149    int capability;
00150    ast_group_t callgroup;  /*!< Call group */
00151    ast_group_t pickupgroup;   /*!< Pickup group */
00152    int callingpres;     /*!< Calling presentation */
00153    int allowguest;
00154    char language[MAX_LANGUAGE];  /*!<  Default language for prompts */
00155    char musicclass[MAX_MUSICCLASS]; /*!<  Music on Hold class */
00156 };
00157 
00158 struct jingle_container {
00159    ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
00160 };
00161 
00162 static const char desc[] = "Jingle Channel";
00163 static const char type[] = "Jingle";
00164 
00165 static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263;
00166 
00167 AST_MUTEX_DEFINE_STATIC(jinglelock); /*!< Protect the interface list (of jingle_pvt's) */
00168 
00169 /* Forward declarations */
00170 static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause);
00171 static int jingle_digit_begin(struct ast_channel *ast, char digit);
00172 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
00173 static int jingle_call(struct ast_channel *ast, char *dest, int timeout);
00174 static int jingle_hangup(struct ast_channel *ast);
00175 static int jingle_answer(struct ast_channel *ast);
00176 static int jingle_newcall(struct jingle *client, ikspak *pak);
00177 static struct ast_frame *jingle_read(struct ast_channel *ast);
00178 static int jingle_write(struct ast_channel *ast, struct ast_frame *f);
00179 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
00180 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
00181 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
00182 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid);
00183 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00184 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00185 /*----- RTP interface functions */
00186 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp,
00187                         struct ast_rtp *vrtp, struct ast_rtp *tpeer, int codecs, int nat_active);
00188 static enum ast_rtp_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp);
00189 static int jingle_get_codec(struct ast_channel *chan);
00190 
00191 /*! \brief PBX interface structure for channel registration */
00192 static const struct ast_channel_tech jingle_tech = {
00193    .type = "Jingle",
00194    .description = "Jingle Channel Driver",
00195    .capabilities = AST_FORMAT_AUDIO_MASK,
00196    .requester = jingle_request,
00197    .send_digit_begin = jingle_digit_begin,
00198    .send_digit_end = jingle_digit_end,
00199    .bridge = ast_rtp_bridge,
00200    .call = jingle_call,
00201    .hangup = jingle_hangup,
00202    .answer = jingle_answer,
00203    .read = jingle_read,
00204    .write = jingle_write,
00205    .exception = jingle_read,
00206    .indicate = jingle_indicate,
00207    .fixup = jingle_fixup,
00208    .send_html = jingle_sendhtml,
00209    .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
00210 };
00211 
00212 static struct sockaddr_in bindaddr = { 0, }; /*!< The address we bind to */
00213 
00214 static struct sched_context *sched; /*!< The scheduling context */
00215 static struct io_context *io; /*!< The IO context */
00216 static struct in_addr __ourip;
00217 
00218 
00219 /*! \brief RTP driver interface */
00220 static struct ast_rtp_protocol jingle_rtp = {
00221    type: "Jingle",
00222    get_rtp_info: jingle_get_rtp_peer,
00223    set_rtp_peer: jingle_set_rtp_peer,
00224    get_codec: jingle_get_codec,
00225 };
00226 
00227 static struct ast_cli_entry jingle_cli[] = {
00228    AST_CLI_DEFINE(jingle_do_reload, "Reload Jingle configuration"),
00229    AST_CLI_DEFINE(jingle_show_channels, "Show Jingle channels"),
00230 };
00231 
00232 
00233 static char externip[16];
00234 
00235 static struct jingle_container jingle_list;
00236 
00237 static void jingle_member_destroy(struct jingle *obj)
00238 {
00239    ast_free(obj);
00240 }
00241 
00242 static struct jingle *find_jingle(char *name, char *connection)
00243 {
00244    struct jingle *jingle = NULL;
00245 
00246    jingle = ASTOBJ_CONTAINER_FIND(&jingle_list, name);
00247    if (!jingle && strchr(name, '@'))
00248       jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingle_list, name, user,,, strcasecmp);
00249 
00250    if (!jingle) {          
00251       /* guest call */
00252       ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
00253          ASTOBJ_RDLOCK(iterator);
00254          if (!strcasecmp(iterator->name, "guest")) {
00255             jingle = iterator;
00256          }
00257          ASTOBJ_UNLOCK(iterator);
00258 
00259          if (jingle)
00260             break;
00261       });
00262 
00263    }
00264    return jingle;
00265 }
00266 
00267 
00268 static void add_codec_to_answer(const struct jingle_pvt *p, int codec, iks *dcodecs)
00269 {
00270    char *format = ast_getformatname(codec);
00271 
00272    if (!strcasecmp("ulaw", format)) {
00273       iks *payload_eg711u, *payload_pcmu;
00274       payload_pcmu = iks_new("payload-type");
00275       iks_insert_attrib(payload_pcmu, "id", "0");
00276       iks_insert_attrib(payload_pcmu, "name", "PCMU");
00277       payload_eg711u = iks_new("payload-type");
00278       iks_insert_attrib(payload_eg711u, "id", "100");
00279       iks_insert_attrib(payload_eg711u, "name", "EG711U");
00280       iks_insert_node(dcodecs, payload_pcmu);
00281       iks_insert_node(dcodecs, payload_eg711u);
00282    }
00283    if (!strcasecmp("alaw", format)) {
00284       iks *payload_eg711a;
00285       iks *payload_pcma = iks_new("payload-type");
00286       iks_insert_attrib(payload_pcma, "id", "8");
00287       iks_insert_attrib(payload_pcma, "name", "PCMA");
00288       payload_eg711a = iks_new("payload-type");
00289       iks_insert_attrib(payload_eg711a, "id", "101");
00290       iks_insert_attrib(payload_eg711a, "name", "EG711A");
00291       iks_insert_node(dcodecs, payload_pcma);
00292       iks_insert_node(dcodecs, payload_eg711a);
00293    }
00294    if (!strcasecmp("ilbc", format)) {
00295       iks *payload_ilbc = iks_new("payload-type");
00296       iks_insert_attrib(payload_ilbc, "id", "97");
00297       iks_insert_attrib(payload_ilbc, "name", "iLBC");
00298       iks_insert_node(dcodecs, payload_ilbc);
00299    }
00300    if (!strcasecmp("g723", format)) {
00301       iks *payload_g723 = iks_new("payload-type");
00302       iks_insert_attrib(payload_g723, "id", "4");
00303       iks_insert_attrib(payload_g723, "name", "G723");
00304       iks_insert_node(dcodecs, payload_g723);
00305    }
00306    ast_rtp_lookup_code(p->rtp, 1, codec);
00307 }
00308 
00309 static int jingle_accept_call(struct jingle *client, struct jingle_pvt *p)
00310 {
00311    struct jingle_pvt *tmp = client->p;
00312    struct aji_client *c = client->connection;
00313    iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
00314    int x;
00315    int pref_codec = 0;
00316    int alreadysent = 0;
00317 
00318    if (p->initiator)
00319       return 1;
00320 
00321    iq = iks_new("iq");
00322    jingle = iks_new(JINGLE_NODE);
00323    dcodecs = iks_new("description");
00324    if (iq && jingle && dcodecs) {
00325       iks_insert_attrib(dcodecs, "xmlns", JINGLE_AUDIO_RTP_NS);
00326 
00327       for (x = 0; x < 32; x++) {
00328          if (!(pref_codec = ast_codec_pref_index(&client->prefs, x)))
00329             break;
00330          if (!(client->capability & pref_codec))
00331             continue;
00332          if (alreadysent & pref_codec)
00333             continue;
00334          add_codec_to_answer(p, pref_codec, dcodecs);
00335          alreadysent |= pref_codec;
00336       }
00337       payload_red = iks_new("payload-type");
00338       iks_insert_attrib(payload_red, "id", "117");
00339       iks_insert_attrib(payload_red, "name", "red");
00340       payload_audio = iks_new("payload-type");
00341       iks_insert_attrib(payload_audio, "id", "106");
00342       iks_insert_attrib(payload_audio, "name", "audio/telephone-event");
00343       payload_cn = iks_new("payload-type");
00344       iks_insert_attrib(payload_cn, "id", "13");
00345       iks_insert_attrib(payload_cn, "name", "CN");
00346 
00347 
00348       iks_insert_attrib(iq, "type", "set");
00349       iks_insert_attrib(iq, "to", (p->them) ? p->them : client->user);
00350       iks_insert_attrib(iq, "id", client->connection->mid);
00351       ast_aji_increment_mid(client->connection->mid);
00352 
00353       iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00354       iks_insert_attrib(jingle, "action", JINGLE_ACCEPT);
00355       iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
00356       iks_insert_attrib(jingle, JINGLE_SID, tmp->sid);
00357       iks_insert_node(iq, jingle);
00358       iks_insert_node(jingle, dcodecs);
00359       iks_insert_node(dcodecs, payload_red);
00360       iks_insert_node(dcodecs, payload_audio);
00361       iks_insert_node(dcodecs, payload_cn);
00362 
00363       ast_aji_send(c, iq);
00364 
00365       iks_delete(payload_red);
00366       iks_delete(payload_audio);
00367       iks_delete(payload_cn);
00368       iks_delete(dcodecs);
00369       iks_delete(jingle);
00370       iks_delete(iq);
00371    }
00372    return 1;
00373 }
00374 
00375 static int jingle_ringing_ack(void *data, ikspak *pak)
00376 {
00377    struct jingle_pvt *p = data;
00378 
00379    if (p->ringrule)
00380       iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
00381    p->ringrule = NULL;
00382    if (p->owner)
00383       ast_queue_control(p->owner, AST_CONTROL_RINGING);
00384    return IKS_FILTER_EAT;
00385 }
00386 
00387 static int jingle_answer(struct ast_channel *ast)
00388 {
00389    struct jingle_pvt *p = ast->tech_pvt;
00390    struct jingle *client = p->parent;
00391    int res = 0;
00392 
00393    ast_debug(1, "Answer!\n");
00394    ast_mutex_lock(&p->lock);
00395    jingle_accept_call(client, p);
00396    ast_mutex_unlock(&p->lock);
00397    return res;
00398 }
00399 
00400 static enum ast_rtp_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp)
00401 {
00402    struct jingle_pvt *p = chan->tech_pvt;
00403    enum ast_rtp_get_result res = AST_RTP_GET_FAILED;
00404 
00405    if (!p)
00406       return res;
00407 
00408    ast_mutex_lock(&p->lock);
00409    if (p->rtp) {
00410       *rtp = p->rtp;
00411       res = AST_RTP_TRY_PARTIAL;
00412    }
00413    ast_mutex_unlock(&p->lock);
00414 
00415    return res;
00416 }
00417 
00418 static int jingle_get_codec(struct ast_channel *chan)
00419 {
00420    struct jingle_pvt *p = chan->tech_pvt;
00421    return p->peercapability;
00422 }
00423 
00424 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, struct ast_rtp *tpeer, int codecs, int nat_active)
00425 {
00426    struct jingle_pvt *p;
00427 
00428    p = chan->tech_pvt;
00429    if (!p)
00430       return -1;
00431    ast_mutex_lock(&p->lock);
00432 
00433 /* if (rtp)
00434       ast_rtp_get_peer(rtp, &p->redirip);
00435    else
00436       memset(&p->redirip, 0, sizeof(p->redirip));
00437    p->redircodecs = codecs; */
00438 
00439    /* Reset lastrtprx timer */
00440    ast_mutex_unlock(&p->lock);
00441    return 0;
00442 }
00443 
00444 static int jingle_response(struct jingle *client, ikspak *pak, const char *reasonstr, const char *reasonstr2)
00445 {
00446    iks *response = NULL, *error = NULL, *reason = NULL;
00447    int res = -1;
00448 
00449    response = iks_new("iq");
00450    if (response) {
00451       iks_insert_attrib(response, "type", "result");
00452       iks_insert_attrib(response, "from", client->connection->jid->full);
00453       iks_insert_attrib(response, "to", iks_find_attrib(pak->x, "from"));
00454       iks_insert_attrib(response, "id", iks_find_attrib(pak->x, "id"));
00455       if (reasonstr) {
00456          error = iks_new("error");
00457          if (error) {
00458             iks_insert_attrib(error, "type", "cancel");
00459             reason = iks_new(reasonstr);
00460             if (reason)
00461                iks_insert_node(error, reason);
00462             iks_insert_node(response, error);
00463          }
00464       }
00465       ast_aji_send(client->connection, response);
00466       res = 0;
00467    }
00468    
00469    iks_delete(reason);
00470    iks_delete(error);
00471    iks_delete(response);
00472 
00473    return res;
00474 }
00475 
00476 static int jingle_is_answered(struct jingle *client, ikspak *pak)
00477 {
00478    struct jingle_pvt *tmp;
00479 
00480    ast_debug(1, "The client is %s\n", client->name);
00481    /* Make sure our new call doesn't exist yet */
00482    for (tmp = client->p; tmp; tmp = tmp->next) {
00483       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00484          break;
00485    }
00486 
00487    if (tmp) {
00488       if (tmp->owner)
00489          ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
00490    } else
00491       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00492    jingle_response(client, pak, NULL, NULL);
00493    return 1;
00494 }
00495 
00496 static int jingle_handle_dtmf(struct jingle *client, ikspak *pak)
00497 {
00498    struct jingle_pvt *tmp;
00499    iks *dtmfnode = NULL, *dtmfchild = NULL;
00500    char *dtmf;
00501    /* Make sure our new call doesn't exist yet */
00502    for (tmp = client->p; tmp; tmp = tmp->next) {
00503       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00504          break;
00505    }
00506 
00507    if (tmp) {
00508       if(iks_find_with_attrib(pak->x, "dtmf-method", "method", "rtp")) {
00509          jingle_response(client,pak,
00510                "feature-not-implemented xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'",
00511                "unsupported-dtmf-method xmlns='http://www.xmpp.org/extensions/xep-0181.html#ns-errors'");
00512          return -1;
00513       }
00514       if ((dtmfnode = iks_find(pak->x, "dtmf"))) {
00515          if((dtmf = iks_find_attrib(dtmfnode, "code"))) {
00516             if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-up")) {
00517                struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
00518                f.subclass = dtmf[0];
00519                ast_queue_frame(tmp->owner, &f);
00520                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00521             } else if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-down")) {
00522                struct ast_frame f = {AST_FRAME_DTMF_END, };
00523                f.subclass = dtmf[0];
00524                ast_queue_frame(tmp->owner, &f);
00525                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00526             } else if(iks_find_attrib(pak->x, "dtmf")) { /* 250 millasecond default */
00527                struct ast_frame f = {AST_FRAME_DTMF, };
00528                f.subclass = dtmf[0];
00529                ast_queue_frame(tmp->owner, &f);
00530                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00531             }
00532          }
00533       } else if ((dtmfnode = iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "session-info"))) {
00534          if((dtmfchild = iks_find(dtmfnode, "dtmf"))) {
00535             if((dtmf = iks_find_attrib(dtmfchild, "code"))) {
00536                if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-up")) {
00537                   struct ast_frame f = {AST_FRAME_DTMF_END, };
00538                   f.subclass = dtmf[0];
00539                   ast_queue_frame(tmp->owner, &f);
00540                   ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00541                } else if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-down")) {
00542                   struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
00543                   f.subclass = dtmf[0];
00544                   ast_queue_frame(tmp->owner, &f);
00545                   ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00546                }
00547             }
00548          }
00549       }
00550       jingle_response(client, pak, NULL, NULL);
00551       return 1;
00552    } else
00553       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00554 
00555    jingle_response(client, pak, NULL, NULL);
00556    return 1;
00557 }
00558 
00559 
00560 static int jingle_hangup_farend(struct jingle *client, ikspak *pak)
00561 {
00562    struct jingle_pvt *tmp;
00563 
00564    ast_debug(1, "The client is %s\n", client->name);
00565    /* Make sure our new call doesn't exist yet */
00566    for (tmp = client->p; tmp; tmp = tmp->next) {
00567       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00568          break;
00569    }
00570 
00571    if (tmp) {
00572       tmp->alreadygone = 1;
00573       if (tmp->owner)
00574          ast_queue_hangup(tmp->owner);
00575    } else
00576       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00577    jingle_response(client, pak, NULL, NULL);
00578    return 1;
00579 }
00580 
00581 static int jingle_create_candidates(struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
00582 {
00583    struct jingle_candidate *tmp;
00584    struct aji_client *c = client->connection;
00585    struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
00586    struct sockaddr_in sin;
00587    struct sockaddr_in dest;
00588    struct in_addr us;
00589    struct in_addr externaddr;
00590    iks *iq, *jingle, *content, *transport, *candidate;
00591    char component[16], foundation[16], generation[16], network[16], pass[16], port[7], priority[16], user[16];
00592 
00593 
00594    iq = iks_new("iq");
00595    jingle = iks_new(JINGLE_NODE);
00596    content = iks_new("content");
00597    transport = iks_new("transport");
00598    candidate = iks_new("candidate");
00599    if (!iq || !jingle || !content || !transport || !candidate) {
00600       ast_log(LOG_ERROR, "Memory allocation error\n");
00601       goto safeout;
00602    }
00603    ours1 = ast_calloc(1, sizeof(*ours1));
00604    ours2 = ast_calloc(1, sizeof(*ours2));
00605    if (!ours1 || !ours2)
00606       goto safeout;
00607 
00608    iks_insert_node(iq, jingle);
00609    iks_insert_node(jingle, content);
00610    iks_insert_node(content, transport);
00611    iks_insert_node(transport, candidate);
00612 
00613    for (; p; p = p->next) {
00614       if (!strcasecmp(p->sid, sid))
00615          break;
00616    }
00617 
00618    if (!p) {
00619       ast_log(LOG_NOTICE, "No matching jingle session - SID %s!\n", sid);
00620       goto safeout;
00621    }
00622 
00623    ast_rtp_get_us(p->rtp, &sin);
00624    ast_find_ourip(&us, bindaddr);
00625 
00626    /* Setup our first jingle candidate */
00627    ours1->component = 1;
00628    ours1->foundation = (unsigned int)bindaddr.sin_addr.s_addr | AJI_CONNECT_HOST | AJI_PROTOCOL_UDP;
00629    ours1->generation = 0;
00630    ast_copy_string(ours1->ip, ast_inet_ntoa(us), sizeof(ours1->ip));
00631    ours1->network = 0;
00632    ours1->port = ntohs(sin.sin_port);
00633    ours1->priority = 1678246398;
00634    ours1->protocol = AJI_PROTOCOL_UDP;
00635    snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
00636    ast_copy_string(ours1->password, pass, sizeof(ours1->password));
00637    ours1->type = AJI_CONNECT_HOST;
00638    snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
00639    ast_copy_string(ours1->ufrag, user, sizeof(ours1->ufrag));
00640    p->ourcandidates = ours1;
00641 
00642    if (!ast_strlen_zero(externip)) {
00643       /* XXX We should really stun for this one not just go with externip XXX */
00644       if (inet_aton(externip, &externaddr))
00645          ast_log(LOG_WARNING, "Invalid extern IP : %s\n", externip);
00646 
00647       ours2->component = 1;
00648       ours2->foundation = (unsigned int)externaddr.s_addr | AJI_CONNECT_PRFLX | AJI_PROTOCOL_UDP;
00649       ours2->generation = 0;
00650       ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
00651       ours2->network = 0;
00652       ours2->port = ntohs(sin.sin_port);
00653       ours2->priority = 1678246397;
00654       ours2->protocol = AJI_PROTOCOL_UDP;
00655       snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
00656       ast_copy_string(ours2->password, pass, sizeof(ours2->password));
00657       ours2->type = AJI_CONNECT_PRFLX;
00658 
00659       snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
00660       ast_copy_string(ours2->ufrag, user, sizeof(ours2->ufrag));
00661       ours1->next = ours2;
00662       ours2 = NULL;
00663    }
00664    ours1 = NULL;
00665    dest.sin_addr = __ourip;
00666    dest.sin_port = sin.sin_port;
00667 
00668 
00669    for (tmp = p->ourcandidates; tmp; tmp = tmp->next) {
00670       snprintf(component, sizeof(component), "%u", tmp->component);
00671       snprintf(foundation, sizeof(foundation), "%u", tmp->foundation);
00672       snprintf(generation, sizeof(generation), "%u", tmp->generation);
00673       snprintf(network, sizeof(network), "%u", tmp->network);
00674       snprintf(port, sizeof(port), "%u", tmp->port);
00675       snprintf(priority, sizeof(priority), "%u", tmp->priority);
00676 
00677       iks_insert_attrib(iq, "from", c->jid->full);
00678       iks_insert_attrib(iq, "to", from);
00679       iks_insert_attrib(iq, "type", "set");
00680       iks_insert_attrib(iq, "id", c->mid);
00681       ast_aji_increment_mid(c->mid);
00682       iks_insert_attrib(jingle, "action", JINGLE_NEGOTIATE);
00683       iks_insert_attrib(jingle, JINGLE_SID, sid);
00684       iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from);
00685       iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00686       iks_insert_attrib(content, "creator", p->initiator ? "initiator" : "responder");
00687       iks_insert_attrib(content, "name", "asterisk-audio-content");
00688       iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
00689       iks_insert_attrib(candidate, "component", component);
00690       iks_insert_attrib(candidate, "foundation", foundation);
00691       iks_insert_attrib(candidate, "generation", generation);
00692       iks_insert_attrib(candidate, "ip", tmp->ip);
00693       iks_insert_attrib(candidate, "network", network);
00694       iks_insert_attrib(candidate, "port", port);
00695       iks_insert_attrib(candidate, "priority", priority);
00696       switch (tmp->protocol) {
00697       case AJI_PROTOCOL_UDP:
00698          iks_insert_attrib(candidate, "protocol", "udp");
00699          break;
00700       case AJI_PROTOCOL_SSLTCP:
00701          iks_insert_attrib(candidate, "protocol", "ssltcp");
00702          break;
00703       }
00704       iks_insert_attrib(candidate, "pwd", tmp->password);
00705       switch (tmp->type) {
00706       case AJI_CONNECT_HOST:
00707          iks_insert_attrib(candidate, "type", "host");
00708          break;
00709       case AJI_CONNECT_PRFLX:
00710          iks_insert_attrib(candidate, "type", "prflx");
00711          break;
00712       case AJI_CONNECT_RELAY:
00713          iks_insert_attrib(candidate, "type", "relay");
00714          break;
00715       case AJI_CONNECT_SRFLX:
00716          iks_insert_attrib(candidate, "type", "srflx");
00717          break;
00718       }
00719       iks_insert_attrib(candidate, "ufrag", tmp->ufrag);
00720 
00721       ast_aji_send(c, iq);
00722    }
00723    p->laststun = 0;
00724 
00725 safeout:
00726    if (ours1)
00727       ast_free(ours1);
00728    if (ours2)
00729       ast_free(ours2);
00730    iks_delete(iq);
00731    iks_delete(jingle);
00732    iks_delete(content);
00733    iks_delete(transport);
00734    iks_delete(candidate);
00735 
00736    return 1;
00737 }
00738 
00739 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid)
00740 {
00741    struct jingle_pvt *tmp = NULL;
00742    struct aji_resource *resources = NULL;
00743    struct aji_buddy *buddy;
00744    char idroster[200];
00745 
00746    ast_debug(1, "The client is %s for alloc\n", client->name);
00747    if (!sid && !strchr(from, '/')) {   /* I started call! */
00748       if (!strcasecmp(client->name, "guest")) {
00749          buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from);
00750          if (buddy)
00751             resources = buddy->resources;
00752       } else if (client->buddy)
00753          resources = client->buddy->resources;
00754       while (resources) {
00755          if (resources->cap->jingle) {
00756             break;
00757          }
00758          resources = resources->next;
00759       }
00760       if (resources)
00761          snprintf(idroster, sizeof(idroster), "%s/%s", from, resources->resource);
00762       else {
00763          ast_log(LOG_ERROR, "no jingle capable clients to talk to.\n");
00764          return NULL;
00765       }
00766    }
00767    if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
00768       return NULL;
00769    }
00770 
00771    memcpy(&tmp->prefs, &client->prefs, sizeof(tmp->prefs));
00772 
00773    if (sid) {
00774       ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
00775       ast_copy_string(tmp->them, from, sizeof(tmp->them));
00776    } else {
00777       snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
00778       ast_copy_string(tmp->them, idroster, sizeof(tmp->them));
00779       tmp->initiator = 1;
00780    }
00781    tmp->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
00782    tmp->parent = client;
00783    if (!tmp->rtp) {
00784       ast_log(LOG_WARNING, "Out of RTP sessions?\n");
00785       ast_free(tmp);
00786       return NULL;
00787    }
00788    ast_copy_string(tmp->exten, "s", sizeof(tmp->exten));
00789    ast_mutex_init(&tmp->lock);
00790    ast_mutex_lock(&jinglelock);
00791    tmp->next = client->p;
00792    client->p = tmp;
00793    ast_mutex_unlock(&jinglelock);
00794    return tmp;
00795 }
00796 
00797 /*! \brief Start new jingle channel */
00798 static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title)
00799 {
00800    struct ast_channel *tmp;
00801    int fmt;
00802    int what;
00803    const char *str;
00804 
00805    if (title)
00806       str = title;
00807    else
00808       str = i->them;
00809    tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "", "", "", 0, "Jingle/%s-%04lx", str, ast_random() & 0xffff);
00810    if (!tmp) {
00811       ast_log(LOG_WARNING, "Unable to allocate Jingle channel structure!\n");
00812       return NULL;
00813    }
00814    tmp->tech = &jingle_tech;
00815 
00816    /* Select our native format based on codec preference until we receive
00817       something from another device to the contrary. */
00818    if (i->jointcapability)
00819       what = i->jointcapability;
00820    else if (i->capability)
00821       what = i->capability;
00822    else
00823       what = global_capability;
00824 
00825    /* Set Frame packetization */
00826    if (i->rtp)
00827       ast_rtp_codec_setpref(i->rtp, &i->prefs);
00828 
00829    tmp->nativeformats = ast_codec_choose(&i->prefs, what, 1) | (i->jointcapability & AST_FORMAT_VIDEO_MASK);
00830    fmt = ast_best_codec(tmp->nativeformats);
00831 
00832    if (i->rtp) {
00833       ast_channel_set_fd(tmp, 0, ast_rtp_fd(i->rtp));
00834       ast_channel_set_fd(tmp, 1, ast_rtcp_fd(i->rtp));
00835    }
00836    if (i->vrtp) {
00837       ast_channel_set_fd(tmp, 2, ast_rtp_fd(i->vrtp));
00838       ast_channel_set_fd(tmp, 3, ast_rtcp_fd(i->vrtp));
00839    }
00840    if (state == AST_STATE_RING)
00841       tmp->rings = 1;
00842    tmp->adsicpe = AST_ADSI_UNAVAILABLE;
00843    tmp->writeformat = fmt;
00844    tmp->rawwriteformat = fmt;
00845    tmp->readformat = fmt;
00846    tmp->rawreadformat = fmt;
00847    tmp->tech_pvt = i;
00848 
00849    tmp->callgroup = client->callgroup;
00850    tmp->pickupgroup = client->pickupgroup;
00851    tmp->cid.cid_pres = client->callingpres;
00852    if (!ast_strlen_zero(client->accountcode))
00853       ast_string_field_set(tmp, accountcode, client->accountcode);
00854    if (client->amaflags)
00855       tmp->amaflags = client->amaflags;
00856    if (!ast_strlen_zero(client->language))
00857       ast_string_field_set(tmp, language, client->language);
00858    if (!ast_strlen_zero(client->musicclass))
00859       ast_string_field_set(tmp, musicclass, client->musicclass);
00860    i->owner = tmp;
00861    ast_copy_string(tmp->context, client->context, sizeof(tmp->context));
00862    ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten));
00863    /* Don't use ast_set_callerid() here because it will
00864     * generate an unnecessary NewCallerID event  */
00865    tmp->cid.cid_ani = ast_strdup(i->cid_num);
00866    if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s"))
00867       tmp->cid.cid_dnid = ast_strdup(i->exten);
00868    tmp->priority = 1;
00869    if (i->rtp)
00870       ast_jb_configure(tmp, &global_jbconf);
00871    if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
00872       ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
00873       tmp->hangupcause = AST_CAUSE_SWITCH_CONGESTION;
00874       ast_hangup(tmp);
00875       tmp = NULL;
00876    }
00877 
00878    return tmp;
00879 }
00880 
00881 static int jingle_action(struct jingle *client, struct jingle_pvt *p, const char *action)
00882 {
00883    iks *iq, *jingle = NULL;
00884    int res = -1;
00885 
00886    iq = iks_new("iq");
00887    jingle = iks_new("jingle");
00888    
00889    if (iq) {
00890       iks_insert_attrib(iq, "type", "set");
00891       iks_insert_attrib(iq, "from", client->connection->jid->full);
00892       iks_insert_attrib(iq, "to", p->them);
00893       iks_insert_attrib(iq, "id", client->connection->mid);
00894       ast_aji_increment_mid(client->connection->mid);
00895       if (jingle) {
00896          iks_insert_attrib(jingle, "action", action);
00897          iks_insert_attrib(jingle, JINGLE_SID, p->sid);
00898          iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
00899          iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00900 
00901          iks_insert_node(iq, jingle);
00902 
00903          ast_aji_send(client->connection, iq);
00904          res = 0;
00905       }
00906    }
00907    
00908    iks_delete(jingle);
00909    iks_delete(iq);
00910    
00911    return res;
00912 }
00913 
00914 static void jingle_free_candidates(struct jingle_candidate *candidate)
00915 {
00916    struct jingle_candidate *last;
00917    while (candidate) {
00918       last = candidate;
00919       candidate = candidate->next;
00920       ast_free(last);
00921    }
00922 }
00923 
00924 static void jingle_free_pvt(struct jingle *client, struct jingle_pvt *p)
00925 {
00926    struct jingle_pvt *cur, *prev = NULL;
00927    cur = client->p;
00928    while (cur) {
00929       if (cur == p) {
00930          if (prev)
00931             prev->next = p->next;
00932          else
00933             client->p = p->next;
00934          break;
00935       }
00936       prev = cur;
00937       cur = cur->next;
00938    }
00939    if (p->ringrule)
00940       iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
00941    if (p->owner)
00942       ast_log(LOG_WARNING, "Uh oh, there's an owner, this is going to be messy.\n");
00943    if (p->rtp)
00944       ast_rtp_destroy(p->rtp);
00945    if (p->vrtp)
00946       ast_rtp_destroy(p->vrtp);
00947    jingle_free_candidates(p->theircandidates);
00948    ast_free(p);
00949 }
00950 
00951 
00952 static int jingle_newcall(struct jingle *client, ikspak *pak)
00953 {
00954    struct jingle_pvt *p, *tmp = client->p;
00955    struct ast_channel *chan;
00956    int res;
00957    iks *codec, *content, *description;
00958    char *from = NULL;
00959 
00960    /* Make sure our new call doesn't exist yet */
00961    from = iks_find_attrib(pak->x,"to");
00962    if(!from)
00963       from = client->connection->jid->full;
00964 
00965    while (tmp) {
00966       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
00967          ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
00968          jingle_response(client, pak, "out-of-order", NULL);
00969          return -1;
00970       }
00971       tmp = tmp->next;
00972    }
00973 
00974    if (!strcasecmp(client->name, "guest")){
00975       /* the guest account is not tied to any configured XMPP client,
00976          let's set it now */
00977       client->connection = ast_aji_get_client(from);
00978       if (!client->connection) {
00979          ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", from);
00980          return -1;
00981       }
00982    }
00983 
00984    p = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, JINGLE_SID));
00985    if (!p) {
00986       ast_log(LOG_WARNING, "Unable to allocate jingle structure!\n");
00987       return -1;
00988    }
00989    chan = jingle_new(client, p, AST_STATE_DOWN, pak->from->user);
00990    if (!chan) {
00991       jingle_free_pvt(client, p);
00992       return -1;
00993    }
00994    ast_mutex_lock(&p->lock);
00995    ast_copy_string(p->them, pak->from->full, sizeof(p->them));
00996    if (iks_find_attrib(pak->query, JINGLE_SID)) {
00997       ast_copy_string(p->sid, iks_find_attrib(pak->query, JINGLE_SID),
00998             sizeof(p->sid));
00999    }
01000    
01001    /* content points to the first <content/> tag */   
01002    content = iks_child(iks_child(pak->x));
01003    while (content) {
01004       description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_AUDIO_RTP_NS);
01005       if (description) {
01006          /* audio content found */
01007          codec = iks_child(iks_child(content));
01008               ast_copy_string(p->audio_content_name, iks_find_attrib(content, "name"), sizeof(p->audio_content_name));
01009 
01010          while (codec) {
01011             ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
01012             ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
01013             codec = iks_next(codec);
01014          }
01015       }
01016       
01017       description = NULL;
01018       codec = NULL;
01019 
01020       description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_VIDEO_RTP_NS);
01021       if (description) {
01022          /* video content found */
01023          codec = iks_child(iks_child(content));
01024               ast_copy_string(p->video_content_name, iks_find_attrib(content, "name"), sizeof(p->video_content_name));
01025 
01026          while (codec) {
01027             ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
01028             ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
01029             codec = iks_next(codec);
01030          }
01031       }
01032       
01033       content = iks_next(content);
01034    }
01035 
01036    ast_mutex_unlock(&p->lock);
01037    ast_setstate(chan, AST_STATE_RING);
01038    res = ast_pbx_start(chan);
01039    
01040    switch (res) {
01041    case AST_PBX_FAILED:
01042       ast_log(LOG_WARNING, "Failed to start PBX :(\n");
01043       jingle_response(client, pak, "service-unavailable", NULL);
01044       break;
01045    case AST_PBX_CALL_LIMIT:
01046       ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
01047       jingle_response(client, pak, "service-unavailable", NULL);
01048       break;
01049    case AST_PBX_SUCCESS:
01050       jingle_response(client, pak, NULL, NULL);
01051       jingle_create_candidates(client, p,
01052                 iks_find_attrib(pak->query, JINGLE_SID),
01053                 iks_find_attrib(pak->x, "from"));
01054       /* nothing to do */
01055       break;
01056    }
01057 
01058    return 1;
01059 }
01060 
01061 static int jingle_update_stun(struct jingle *client, struct jingle_pvt *p)
01062 {
01063    struct jingle_candidate *tmp;
01064    struct hostent *hp;
01065    struct ast_hostent ahp;
01066    struct sockaddr_in sin;
01067 
01068    if (time(NULL) == p->laststun)
01069       return 0;
01070 
01071    tmp = p->theircandidates;
01072    p->laststun = time(NULL);
01073    while (tmp) {
01074       char username[256];
01075       hp = ast_gethostbyname(tmp->ip, &ahp);
01076       sin.sin_family = AF_INET;
01077       memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
01078       sin.sin_port = htons(tmp->port);
01079       snprintf(username, sizeof(username), "%s:%s", tmp->ufrag, p->ourcandidates->ufrag);
01080 
01081       ast_rtp_stun_request(p->rtp, &sin, username);
01082       tmp = tmp->next;
01083    }
01084    return 1;
01085 }
01086 
01087 static int jingle_add_candidate(struct jingle *client, ikspak *pak)
01088 {
01089    struct jingle_pvt *p = NULL, *tmp = NULL;
01090    struct aji_client *c = client->connection;
01091    struct jingle_candidate *newcandidate = NULL;
01092    iks *traversenodes = NULL, *receipt = NULL;
01093 
01094    for (tmp = client->p; tmp; tmp = tmp->next) {
01095       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
01096          p = tmp;
01097          break;
01098       }
01099    }
01100 
01101    if (!p)
01102       return -1;
01103 
01104    traversenodes = pak->query;
01105    while(traversenodes) {
01106       if(!strcasecmp(iks_name(traversenodes), "jingle")) {
01107          traversenodes = iks_child(traversenodes);
01108          continue;
01109       }
01110       if(!strcasecmp(iks_name(traversenodes), "content")) {
01111          traversenodes = iks_child(traversenodes);
01112          continue;
01113       }
01114       if(!strcasecmp(iks_name(traversenodes), "transport")) {
01115          traversenodes = iks_child(traversenodes);
01116          continue;
01117       }
01118 
01119       if(!strcasecmp(iks_name(traversenodes), "candidate")) {
01120          newcandidate = ast_calloc(1, sizeof(*newcandidate));
01121          if (!newcandidate)
01122             return 0;
01123          ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "ip"), sizeof(newcandidate->ip));
01124          newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
01125          ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "pwd"), sizeof(newcandidate->password));
01126          if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
01127             newcandidate->protocol = AJI_PROTOCOL_UDP;
01128          else if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
01129             newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
01130          
01131          if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "host"))
01132             newcandidate->type = AJI_CONNECT_HOST;
01133          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "prflx"))
01134             newcandidate->type = AJI_CONNECT_PRFLX;
01135          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
01136             newcandidate->type = AJI_CONNECT_RELAY;
01137          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "srflx"))
01138             newcandidate->type = AJI_CONNECT_SRFLX;
01139 
01140          newcandidate->network = atoi(iks_find_attrib(traversenodes, "network"));
01141          newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
01142          newcandidate->next = NULL;
01143       
01144          newcandidate->next = p->theircandidates;
01145          p->theircandidates = newcandidate;
01146          p->laststun = 0;
01147          jingle_update_stun(p->parent, p);
01148          newcandidate = NULL;
01149       }
01150       traversenodes = iks_next(traversenodes);
01151    }
01152    
01153    receipt = iks_new("iq");
01154    iks_insert_attrib(receipt, "type", "result");
01155    iks_insert_attrib(receipt, "from", c->jid->full);
01156    iks_insert_attrib(receipt, "to", iks_find_attrib(pak->x, "from"));
01157    iks_insert_attrib(receipt, "id", iks_find_attrib(pak->x, "id"));
01158    ast_aji_send(c, receipt);
01159 
01160    iks_delete(receipt);
01161 
01162    return 1;
01163 }
01164 
01165 static struct ast_frame *jingle_rtp_read(struct ast_channel *ast, struct jingle_pvt *p)
01166 {
01167    struct ast_frame *f;
01168 
01169    if (!p->rtp)
01170       return &ast_null_frame;
01171    f = ast_rtp_read(p->rtp);
01172    jingle_update_stun(p->parent, p);
01173    if (p->owner) {
01174       /* We already hold the channel lock */
01175       if (f->frametype == AST_FRAME_VOICE) {
01176          if (f->subclass != (p->owner->nativeformats & AST_FORMAT_AUDIO_MASK)) {
01177             ast_debug(1, "Oooh, format changed to %d\n", f->subclass);
01178             p->owner->nativeformats =
01179                (p->owner->nativeformats & AST_FORMAT_VIDEO_MASK) | f->subclass;
01180             ast_set_read_format(p->owner, p->owner->readformat);
01181             ast_set_write_format(p->owner, p->owner->writeformat);
01182          }
01183 /*       if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) {
01184             f = ast_dsp_process(p->owner, p->vad, f);
01185             if (f && (f->frametype == AST_FRAME_DTMF))
01186                ast_debug(1, "* Detected inband DTMF '%c'\n", f->subclass);
01187               } */
01188       }
01189    }
01190    return f;
01191 }
01192 
01193 static struct ast_frame *jingle_read(struct ast_channel *ast)
01194 {
01195    struct ast_frame *fr;
01196    struct jingle_pvt *p = ast->tech_pvt;
01197 
01198    ast_mutex_lock(&p->lock);
01199    fr = jingle_rtp_read(ast, p);
01200    ast_mutex_unlock(&p->lock);
01201    return fr;
01202 }
01203 
01204 /*! \brief Send frame to media channel (rtp) */
01205 static int jingle_write(struct ast_channel *ast, struct ast_frame *frame)
01206 {
01207    struct jingle_pvt *p = ast->tech_pvt;
01208    int res = 0;
01209 
01210    switch (frame->frametype) {
01211    case AST_FRAME_VOICE:
01212       if (!(frame->subclass & ast->nativeformats)) {
01213          ast_log(LOG_WARNING,
01214                "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
01215                frame->subclass, ast->nativeformats, ast->readformat,
01216                ast->writeformat);
01217          return 0;
01218       }
01219       if (p) {
01220          ast_mutex_lock(&p->lock);
01221          if (p->rtp) {
01222             res = ast_rtp_write(p->rtp, frame);
01223          }
01224          ast_mutex_unlock(&p->lock);
01225       }
01226       break;
01227    case AST_FRAME_VIDEO:
01228       if (p) {
01229          ast_mutex_lock(&p->lock);
01230          if (p->vrtp) {
01231             res = ast_rtp_write(p->vrtp, frame);
01232          }
01233          ast_mutex_unlock(&p->lock);
01234       }
01235       break;
01236    case AST_FRAME_IMAGE:
01237       return 0;
01238       break;
01239    default:
01240       ast_log(LOG_WARNING, "Can't send %d type frames with Jingle write\n",
01241             frame->frametype);
01242       return 0;
01243    }
01244 
01245    return res;
01246 }
01247 
01248 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
01249 {
01250    struct jingle_pvt *p = newchan->tech_pvt;
01251    ast_mutex_lock(&p->lock);
01252 
01253    if ((p->owner != oldchan)) {
01254       ast_mutex_unlock(&p->lock);
01255       return -1;
01256    }
01257    if (p->owner == oldchan)
01258       p->owner = newchan;
01259    ast_mutex_unlock(&p->lock);
01260    return 0;
01261 }
01262 
01263 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
01264 {
01265    int res = 0;
01266 
01267    switch (condition) {
01268    case AST_CONTROL_HOLD:
01269       ast_moh_start(ast, data, NULL);
01270       break;
01271    case AST_CONTROL_UNHOLD:
01272       ast_moh_stop(ast);
01273       break;
01274    default:
01275       ast_log(LOG_NOTICE, "Don't know how to indicate condition '%d'\n", condition);
01276       res = -1;
01277    }
01278 
01279    return res;
01280 }
01281 
01282 static int jingle_digit(struct ast_channel *ast, char digit, unsigned int duration)
01283 {
01284    struct jingle_pvt *p = ast->tech_pvt;
01285    struct jingle *client = p->parent;
01286    iks *iq, *jingle, *dtmf;
01287    char buffer[2] = {digit, '\0'};
01288    iq = iks_new("iq");
01289    jingle = iks_new("jingle");
01290    dtmf = iks_new("dtmf");
01291    if(!iq || !jingle || !dtmf) {
01292       iks_delete(iq);
01293       iks_delete(jingle);
01294       iks_delete(dtmf);
01295       ast_log(LOG_ERROR, "Did not send dtmf do to memory issue\n");
01296       return -1;
01297    }
01298 
01299    iks_insert_attrib(iq, "type", "set");
01300    iks_insert_attrib(iq, "to", p->them);
01301    iks_insert_attrib(iq, "from", client->connection->jid->full);
01302    iks_insert_attrib(iq, "id", client->connection->mid);
01303    ast_aji_increment_mid(client->connection->mid);
01304    iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
01305    iks_insert_attrib(jingle, "action", "session-info");
01306    iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
01307    iks_insert_attrib(jingle, "sid", p->sid);
01308    iks_insert_attrib(dtmf, "xmlns", JINGLE_DTMF_NS);
01309    iks_insert_attrib(dtmf, "code", buffer);
01310    iks_insert_node(iq, jingle);
01311    iks_insert_node(jingle, dtmf);
01312 
01313    ast_mutex_lock(&p->lock);
01314    if (ast->dtmff.frametype == AST_FRAME_DTMF_BEGIN || duration == 0) {
01315       iks_insert_attrib(dtmf, "action", "button-down");
01316    } else if (ast->dtmff.frametype == AST_FRAME_DTMF_END || duration != 0) {
01317       iks_insert_attrib(dtmf, "action", "button-up");
01318    }
01319    ast_aji_send(client->connection, iq);
01320 
01321    iks_delete(iq);
01322    iks_delete(jingle);
01323    iks_delete(dtmf);
01324    ast_mutex_unlock(&p->lock);
01325    return 0;
01326 }
01327 
01328 static int jingle_digit_begin(struct ast_channel *chan, char digit)
01329 {
01330    return jingle_digit(chan, digit, 0);
01331 }
01332 
01333 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
01334 {
01335    return jingle_digit(ast, digit, duration);
01336 }
01337 
01338 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
01339 {
01340    ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");
01341 
01342    return -1;
01343 }
01344 static int jingle_transmit_invite(struct jingle_pvt *p)
01345 {
01346    struct jingle *aux = NULL;
01347    struct aji_client *client = NULL;
01348    iks *iq, *jingle, *content, *description, *transport;
01349    iks *payload_eg711u, *payload_pcmu;
01350 
01351    aux = p->parent;
01352    client = aux->connection;
01353    iq = iks_new("iq");
01354    jingle = iks_new(JINGLE_NODE);
01355    content = iks_new("content");
01356    description = iks_new("description");
01357    transport = iks_new("transport");
01358    payload_pcmu = iks_new("payload-type");
01359    payload_eg711u = iks_new("payload-type");
01360 
01361    ast_copy_string(p->audio_content_name, "asterisk-audio-content", sizeof(p->audio_content_name));
01362 
01363    iks_insert_attrib(iq, "type", "set");
01364    iks_insert_attrib(iq, "to", p->them);
01365    iks_insert_attrib(iq, "from", client->jid->full);
01366    iks_insert_attrib(iq, "id", client->mid);
01367    ast_aji_increment_mid(client->mid);
01368    iks_insert_attrib(jingle, "action", JINGLE_INITIATE);
01369    iks_insert_attrib(jingle, JINGLE_SID, p->sid);
01370    iks_insert_attrib(jingle, "initiator", client->jid->full);
01371    iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
01372 
01373    /* For now, we only send one audio based content */
01374    iks_insert_attrib(content, "creator", "initiator");
01375    iks_insert_attrib(content, "name", p->audio_content_name);
01376    iks_insert_attrib(content, "profile", "RTP/AVP");
01377    iks_insert_attrib(description, "xmlns", JINGLE_AUDIO_RTP_NS);
01378    iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
01379    iks_insert_attrib(payload_pcmu, "id", "0");
01380    iks_insert_attrib(payload_pcmu, "name", "PCMU");
01381    iks_insert_attrib(payload_eg711u, "id", "100");
01382    iks_insert_attrib(payload_eg711u, "name", "EG711U");
01383    iks_insert_node(description, payload_pcmu);
01384    iks_insert_node(description, payload_eg711u);
01385    iks_insert_node(content, description);
01386    iks_insert_node(content, transport);
01387    iks_insert_node(jingle, content);
01388    iks_insert_node(iq, jingle);
01389 
01390    ast_aji_send(client, iq);
01391 
01392    iks_delete(iq);
01393    iks_delete(jingle);
01394    iks_delete(content);
01395    iks_delete(description);
01396    iks_delete(transport);
01397    iks_delete(payload_eg711u);
01398    iks_delete(payload_pcmu);
01399    return 0;
01400 }
01401 
01402 /* Not in use right now.
01403 static int jingle_auto_congest(void *nothing)
01404 {
01405    struct jingle_pvt *p = nothing;
01406 
01407    ast_mutex_lock(&p->lock);
01408    if (p->owner) {
01409       if (!ast_channel_trylock(p->owner)) {
01410          ast_log(LOG_NOTICE, "Auto-congesting %s\n", p->owner->name);
01411          ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
01412          ast_channel_unlock(p->owner);
01413       }
01414    }
01415    ast_mutex_unlock(&p->lock);
01416    return 0;
01417 }
01418 */
01419 
01420 /*! \brief Initiate new call, part of PBX interface 
01421  *    dest is the dial string */
01422 static int jingle_call(struct ast_channel *ast, char *dest, int timeout)
01423 {
01424    struct jingle_pvt *p = ast->tech_pvt;
01425 
01426    if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
01427       ast_log(LOG_WARNING, "jingle_call called on %s, neither down nor reserved\n", ast->name);
01428       return -1;
01429    }
01430 
01431    ast_setstate(ast, AST_STATE_RING);
01432    p->jointcapability = p->capability;
01433    if (!p->ringrule) {
01434       ast_copy_string(p->ring, p->parent->connection->mid, sizeof(p->ring));
01435       p->ringrule = iks_filter_add_rule(p->parent->connection->f, jingle_ringing_ack, p,
01436                      IKS_RULE_ID, p->ring, IKS_RULE_DONE);
01437    } else
01438       ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");
01439 
01440    jingle_transmit_invite(p);
01441    jingle_create_candidates(p->parent, p, p->sid, p->them);
01442 
01443    return 0;
01444 }
01445 
01446 /*! \brief Hangup a call through the jingle proxy channel */
01447 static int jingle_hangup(struct ast_channel *ast)
01448 {
01449    struct jingle_pvt *p = ast->tech_pvt;
01450    struct jingle *client;
01451 
01452    ast_mutex_lock(&p->lock);
01453    client = p->parent;
01454    p->owner = NULL;
01455    ast->tech_pvt = NULL;
01456    if (!p->alreadygone)
01457       jingle_action(client, p, JINGLE_TERMINATE);
01458    ast_mutex_unlock(&p->lock);
01459 
01460    jingle_free_pvt(client, p);
01461 
01462    return 0;
01463 }
01464 
01465 /*! \brief Part of PBX interface */
01466 static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause)
01467 {
01468    struct jingle_pvt *p = NULL;
01469    struct jingle *client = NULL;
01470    char *sender = NULL, *to = NULL, *s = NULL;
01471    struct ast_channel *chan = NULL;
01472 
01473    if (data) {
01474       s = ast_strdupa(data);
01475       if (s) {
01476          sender = strsep(&s, "/");
01477          if (sender && (sender[0] != '\0'))
01478             to = strsep(&s, "/");
01479          if (!to) {
01480             ast_log(LOG_ERROR, "Bad arguments in Jingle Dialstring: %s\n", (char*) data);
01481             return NULL;
01482          }
01483       }
01484    }
01485 
01486    client = find_jingle(to, sender);
01487    if (!client) {
01488       ast_log(LOG_WARNING, "Could not find recipient.\n");
01489       return NULL;
01490    }
01491    if (!strcasecmp(client->name, "guest")){
01492       /* the guest account is not tied to any configured XMPP client,
01493          let's set it now */
01494       client->connection = ast_aji_get_client(sender);
01495       if (!client->connection) {
01496          ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", sender);
01497          return NULL;
01498       }
01499    }
01500        
01501    ASTOBJ_WRLOCK(client);
01502    p = jingle_alloc(client, to, NULL);
01503    if (p)
01504       chan = jingle_new(client, p, AST_STATE_DOWN, to);
01505    ASTOBJ_UNLOCK(client);
01506 
01507    return chan;
01508 }
01509 
01510 /*! \brief CLI command "jingle show channels" */
01511 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01512 {
01513 #define FORMAT  "%-30.30s  %-30.30s  %-15.15s  %-5.5s %-5.5s \n"
01514    struct jingle_pvt *p;
01515    struct ast_channel *chan;
01516    int numchans = 0;
01517    char them[AJI_MAX_JIDLEN];
01518    char *jid = NULL;
01519    char *resource = NULL;
01520 
01521    switch (cmd) {
01522    case CLI_INIT:
01523       e->command = "jingle show channels";
01524       e->usage =
01525          "Usage: jingle show channels\n"
01526          "       Shows current state of the Jingle channels.\n";
01527       return NULL;
01528    case CLI_GENERATE:
01529       return NULL;
01530    }
01531 
01532    if (a->argc != 3)
01533       return CLI_SHOWUSAGE;
01534 
01535    ast_mutex_lock(&jinglelock);
01536    ast_cli(a->fd, FORMAT, "Channel", "Jabber ID", "Resource", "Read", "Write");
01537    ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
01538       ASTOBJ_WRLOCK(iterator);
01539       p = iterator->p;
01540       while(p) {
01541          chan = p->owner;
01542          ast_copy_string(them, p->them, sizeof(them));
01543          jid = them;
01544          resource = strchr(them, '/');
01545          if (!resource)
01546             resource = "None";
01547          else {
01548             *resource = '\0';
01549             resource ++;
01550          }
01551          if (chan)
01552             ast_cli(a->fd, FORMAT, 
01553                chan->name,
01554                jid,
01555                resource,
01556                ast_getformatname(chan->readformat),
01557                ast_getformatname(chan->writeformat)               
01558                );
01559          else 
01560             ast_log(LOG_WARNING, "No available channel\n");
01561          numchans ++;
01562          p = p->next;
01563       }
01564       ASTOBJ_UNLOCK(iterator);
01565    });
01566 
01567    ast_mutex_unlock(&jinglelock);
01568 
01569    ast_cli(a->fd, "%d active jingle channel%s\n", numchans, (numchans != 1) ? "s" : "");
01570    return CLI_SUCCESS;
01571 #undef FORMAT
01572 }
01573 
01574 /*! \brief CLI command "jingle reload" */
01575 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01576 {
01577    switch (cmd) {
01578    case CLI_INIT:
01579       e->command = "jingle reload";
01580       e->usage =
01581          "Usage: jingle reload\n"
01582          "       Reload jingle channel driver.\n";
01583       return NULL;
01584    case CLI_GENERATE:
01585       return NULL;
01586    }  
01587    
01588    return CLI_SUCCESS;
01589 }
01590 
01591 static int jingle_parser(void *data, ikspak *pak)
01592 {
01593    struct jingle *client = ASTOBJ_REF((struct jingle *) data);
01594    ast_log(LOG_NOTICE, "Filter matched\n");
01595 
01596    if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INITIATE)) {
01597       /* New call */
01598       jingle_newcall(client, pak);
01599    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_NEGOTIATE)) {
01600       ast_debug(3, "About to add candidate!\n");
01601       jingle_add_candidate(client, pak);
01602       ast_debug(3, "Candidate Added!\n");
01603    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_ACCEPT)) {
01604       jingle_is_answered(client, pak);
01605    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INFO)) {
01606       jingle_handle_dtmf(client, pak);
01607    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_TERMINATE)) {
01608       jingle_hangup_farend(client, pak);
01609    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "reject")) {
01610       jingle_hangup_farend(client, pak);
01611    }
01612    ASTOBJ_UNREF(client, jingle_member_destroy);
01613    return IKS_FILTER_EAT;
01614 }
01615 /* Not using this anymore probably take out soon 
01616 static struct jingle_candidate *jingle_create_candidate(char *args)
01617 {
01618    char *name, *type, *preference, *protocol;
01619    struct jingle_candidate *res;
01620    res = ast_calloc(1, sizeof(*res));
01621    if (args)
01622       name = args;
01623    if ((args = strchr(args, ','))) {
01624       *args = '\0';
01625       args++;
01626       preference = args;
01627    }
01628    if ((args = strchr(args, ','))) {
01629       *args = '\0';
01630       args++;
01631       protocol = args;
01632    }
01633    if ((args = strchr(args, ','))) {
01634       *args = '\0';
01635       args++;
01636       type = args;
01637    }
01638    if (name)
01639       ast_copy_string(res->name, name, sizeof(res->name));
01640    if (preference) {
01641       res->preference = atof(preference);
01642    }
01643    if (protocol) {
01644       if (!strcasecmp("udp", protocol))
01645          res->protocol = AJI_PROTOCOL_UDP;
01646       if (!strcasecmp("ssltcp", protocol))
01647          res->protocol = AJI_PROTOCOL_SSLTCP;
01648    }
01649    if (type) {
01650       if (!strcasecmp("host", type))
01651          res->type = AJI_CONNECT_HOST;
01652       if (!strcasecmp("prflx", type))
01653          res->type = AJI_CONNECT_PRFLX;
01654       if (!strcasecmp("relay", type))
01655          res->type = AJI_CONNECT_RELAY;
01656       if (!strcasecmp("srflx", type))
01657          res->type = AJI_CONNECT_SRFLX;
01658    }
01659 
01660    return res;
01661 }
01662 */
01663 
01664 static int jingle_create_member(char *label, struct ast_variable *var, int allowguest,
01665                         struct ast_codec_pref prefs, char *context,
01666                         struct jingle *member)
01667 {
01668    struct aji_client *client;
01669 
01670    if (!member)
01671       ast_log(LOG_WARNING, "Out of memory.\n");
01672 
01673    ast_copy_string(member->name, label, sizeof(member->name));
01674    ast_copy_string(member->user, label, sizeof(member->user));
01675    ast_copy_string(member->context, context, sizeof(member->context));
01676    member->allowguest = allowguest;
01677    member->prefs = prefs;
01678    while (var) {
01679 #if 0
01680       struct jingle_candidate *candidate = NULL;
01681 #endif
01682       if (!strcasecmp(var->name, "username"))
01683          ast_copy_string(member->user, var->value, sizeof(member->user));
01684       else if (!strcasecmp(var->name, "disallow"))
01685          ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 0);
01686       else if (!strcasecmp(var->name, "allow"))
01687          ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 1);
01688       else if (!strcasecmp(var->name, "context"))
01689          ast_copy_string(member->context, var->value, sizeof(member->context));
01690 #if 0
01691       else if (!strcasecmp(var->name, "candidate")) {
01692          candidate = jingle_create_candidate(var->value);
01693          if (candidate) {
01694             candidate->next = member->ourcandidates;
01695             member->ourcandidates = candidate;
01696          }
01697       }
01698 #endif
01699       else if (!strcasecmp(var->name, "connection")) {
01700          if ((client = ast_aji_get_client(var->value))) {
01701             member->connection = client;
01702             iks_filter_add_rule(client->f, jingle_parser, member,
01703                       IKS_RULE_TYPE, IKS_PAK_IQ,
01704                       IKS_RULE_FROM_PARTIAL, member->user,
01705                       IKS_RULE_NS, JINGLE_NS,
01706                       IKS_RULE_DONE);
01707          } else {
01708             ast_log(LOG_ERROR, "connection referenced not found!\n");
01709             return 0;
01710          }
01711       }
01712       var = var->next;
01713    }
01714    if (member->connection && member->user)
01715       member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user);
01716    else {
01717       ast_log(LOG_ERROR, "No Connection or Username!\n");
01718    }
01719    return 1;
01720 }
01721 
01722 static int jingle_load_config(void)
01723 {
01724    char *cat = NULL;
01725    struct ast_config *cfg = NULL;
01726    char context[100];
01727    int allowguest = 1;
01728    struct ast_variable *var;
01729    struct jingle *member;
01730    struct hostent *hp;
01731    struct ast_hostent ahp;
01732    struct ast_codec_pref prefs;
01733    struct aji_client_container *clients;
01734    struct jingle_candidate *global_candidates = NULL;
01735    struct ast_flags config_flags = { 0 };
01736 
01737    cfg = ast_config_load(JINGLE_CONFIG, config_flags);
01738    if (!cfg)
01739       return 0;
01740 
01741    /* Copy the default jb config over global_jbconf */
01742    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
01743 
01744    cat = ast_category_browse(cfg, NULL);
01745    for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
01746       /* handle jb conf */
01747       if (!ast_jb_read_conf(&global_jbconf, var->name, var->value))
01748          continue;
01749 
01750       if (!strcasecmp(var->name, "allowguest"))
01751          allowguest =
01752             (ast_true(ast_variable_retrieve(cfg, "general", "allowguest"))) ? 1 : 0;
01753       else if (!strcasecmp(var->name, "disallow"))
01754          ast_parse_allow_disallow(&prefs, &global_capability, var->value, 0);
01755       else if (!strcasecmp(var->name, "allow"))
01756          ast_parse_allow_disallow(&prefs, &global_capability, var->value, 1);
01757       else if (!strcasecmp(var->name, "context"))
01758          ast_copy_string(context, var->value, sizeof(context));
01759       else if (!strcasecmp(var->name, "externip"))
01760          ast_copy_string(externip, var->value, sizeof(externip));
01761       else if (!strcasecmp(var->name, "bindaddr")) {
01762          if (!(hp = ast_gethostbyname(var->value, &ahp))) {
01763             ast_log(LOG_WARNING, "Invalid address: %s\n", var->value);
01764          } else {
01765             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
01766          }
01767       }
01768 /*  Idea to allow for custom candidates  */
01769 /*
01770       else if (!strcasecmp(var->name, "candidate")) {
01771          candidate = jingle_create_candidate(var->value);
01772          if (candidate) {
01773             candidate->next = global_candidates;
01774             global_candidates = candidate;
01775          }
01776       }
01777 */
01778    }
01779    while (cat) {
01780       if (strcasecmp(cat, "general")) {
01781          var = ast_variable_browse(cfg, cat);
01782          member = ast_calloc(1, sizeof(*member));
01783          ASTOBJ_INIT(member);
01784          ASTOBJ_WRLOCK(member);
01785          if (!strcasecmp(cat, "guest")) {
01786             ast_copy_string(member->name, "guest", sizeof(member->name));
01787             ast_copy_string(member->user, "guest", sizeof(member->user));
01788             ast_copy_string(member->context, context, sizeof(member->context));
01789             member->allowguest = allowguest;
01790             member->prefs = prefs;
01791             while (var) {
01792                if (!strcasecmp(var->name, "disallow"))
01793                   ast_parse_allow_disallow(&member->prefs, &member->capability,
01794                                      var->value, 0);
01795                else if (!strcasecmp(var->name, "allow"))
01796                   ast_parse_allow_disallow(&member->prefs, &member->capability,
01797                                      var->value, 1);
01798                else if (!strcasecmp(var->name, "context"))
01799                   ast_copy_string(member->context, var->value,
01800                               sizeof(member->context));
01801 /*  Idea to allow for custom candidates  */
01802 /*
01803                else if (!strcasecmp(var->name, "candidate")) {
01804                   candidate = jingle_create_candidate(var->value);
01805                   if (candidate) {
01806                      candidate->next = member->ourcandidates;
01807                      member->ourcandidates = candidate;
01808                   }
01809                }
01810 */
01811                var = var->next;
01812             }
01813             ASTOBJ_UNLOCK(member);
01814             clients = ast_aji_get_clients();
01815             if (clients) {
01816                ASTOBJ_CONTAINER_TRAVERSE(clients, 1, {
01817                   ASTOBJ_WRLOCK(iterator);
01818                   ASTOBJ_WRLOCK(member);
01819                   member->connection = NULL;
01820                   iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_NS, IKS_RULE_DONE);
01821                   iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_DTMF_NS, IKS_RULE_DONE);
01822                   ASTOBJ_UNLOCK(member);
01823                   ASTOBJ_UNLOCK(iterator);
01824                });
01825                ASTOBJ_CONTAINER_LINK(&jingle_list, member);
01826             } else {
01827                ASTOBJ_UNLOCK(member);
01828                ASTOBJ_UNREF(member, jingle_member_destroy);
01829             }
01830          } else {
01831             ASTOBJ_UNLOCK(member);
01832             if (jingle_create_member(cat, var, allowguest, prefs, context, member))
01833                ASTOBJ_CONTAINER_LINK(&jingle_list, member);
01834             ASTOBJ_UNREF(member, jingle_member_destroy);
01835          }
01836       }
01837       cat = ast_category_browse(cfg, cat);
01838    }
01839    jingle_free_candidates(global_candidates);
01840    return 1;
01841 }
01842 
01843 /*! \brief Load module into PBX, register channel */
01844 static int load_module(void)
01845 {
01846    char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
01847    free(jabber_loaded);
01848    if (!jabber_loaded) {
01849       /* Dependency module has a different name, if embedded */
01850       jabber_loaded = ast_module_helper("", "res_jabber", 0, 0, 0, 0);
01851       free(jabber_loaded);
01852       if (!jabber_loaded) {
01853          ast_log(LOG_ERROR, "chan_jingle.so depends upon res_jabber.so\n");
01854          return AST_MODULE_LOAD_DECLINE;
01855       }
01856    }
01857 
01858    ASTOBJ_CONTAINER_INIT(&jingle_list);
01859    if (!jingle_load_config()) {
01860       ast_log(LOG_ERROR, "Unable to read config file %s. Not loading module.\n", JINGLE_CONFIG);
01861       return AST_MODULE_LOAD_DECLINE;
01862    }
01863 
01864    sched = sched_context_create();
01865    if (!sched) 
01866       ast_log(LOG_WARNING, "Unable to create schedule context\n");
01867 
01868    io = io_context_create();
01869    if (!io) 
01870       ast_log(LOG_WARNING, "Unable to create I/O context\n");
01871 
01872    if (ast_find_ourip(&__ourip, bindaddr)) {
01873       ast_log(LOG_WARNING, "Unable to get own IP address, Jingle disabled\n");
01874       return 0;
01875    }
01876 
01877    ast_rtp_proto_register(&jingle_rtp);
01878    ast_cli_register_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
01879    /* Make sure we can register our channel type */
01880    if (ast_channel_register(&jingle_tech)) {
01881       ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
01882       return -1;
01883    }
01884    return 0;
01885 }
01886 
01887 /*! \brief Reload module */
01888 static int reload(void)
01889 {
01890    return 0;
01891 }
01892 
01893 /*! \brief Unload the jingle channel from Asterisk */
01894 static int unload_module(void)
01895 {
01896    struct jingle_pvt *privates = NULL;
01897    ast_cli_unregister_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
01898    /* First, take us out of the channel loop */
01899    ast_channel_unregister(&jingle_tech);
01900    ast_rtp_proto_unregister(&jingle_rtp);
01901 
01902    if (!ast_mutex_lock(&jinglelock)) {
01903       /* Hangup all interfaces if they have an owner */
01904       ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
01905          ASTOBJ_WRLOCK(iterator);
01906          privates = iterator->p;
01907          while(privates) {
01908             if (privates->owner)
01909                ast_softhangup(privates->owner, AST_SOFTHANGUP_APPUNLOAD);
01910             privates = privates->next;
01911          }
01912          iterator->p = NULL;
01913          ASTOBJ_UNLOCK(iterator);
01914       });
01915       ast_mutex_unlock(&jinglelock);
01916    } else {
01917       ast_log(LOG_WARNING, "Unable to lock the monitor\n");
01918       return -1;
01919    }
01920    ASTOBJ_CONTAINER_DESTROYALL(&jingle_list, jingle_member_destroy);
01921    ASTOBJ_CONTAINER_DESTROY(&jingle_list);
01922    return 0;
01923 }
01924 
01925 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Jingle Channel Driver",
01926       .load = load_module,
01927       .unload = unload_module,
01928       .reload = reload,
01929           );

Generated on Thu Jul 9 13:40:27 2009 for Asterisk - the Open Source PBX by  doxygen 1.4.7