Fri Jul 24 00:40:48 2009

Asterisk developer's documentation


chan_jingle.c

Go to the documentation of this file.
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: 136888 $")
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    char parkinglot[AST_MAX_CONTEXT];   /*!< Parkinglot */
00157 };
00158 
00159 struct jingle_container {
00160    ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
00161 };
00162 
00163 static const char desc[] = "Jingle Channel";
00164 static const char channel_type[] = "Jingle";
00165 
00166 static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263;
00167 
00168 AST_MUTEX_DEFINE_STATIC(jinglelock); /*!< Protect the interface list (of jingle_pvt's) */
00169 
00170 /* Forward declarations */
00171 static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause);
00172 static int jingle_digit_begin(struct ast_channel *ast, char digit);
00173 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
00174 static int jingle_call(struct ast_channel *ast, char *dest, int timeout);
00175 static int jingle_hangup(struct ast_channel *ast);
00176 static int jingle_answer(struct ast_channel *ast);
00177 static int jingle_newcall(struct jingle *client, ikspak *pak);
00178 static struct ast_frame *jingle_read(struct ast_channel *ast);
00179 static int jingle_write(struct ast_channel *ast, struct ast_frame *f);
00180 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
00181 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
00182 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
00183 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid);
00184 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00185 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00186 /*----- RTP interface functions */
00187 static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp,
00188                         struct ast_rtp *vrtp, struct ast_rtp *tpeer, int codecs, int nat_active);
00189 static enum ast_rtp_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp);
00190 static int jingle_get_codec(struct ast_channel *chan);
00191 
00192 /*! \brief PBX interface structure for channel registration */
00193 static const struct ast_channel_tech jingle_tech = {
00194    .type = "Jingle",
00195    .description = "Jingle Channel Driver",
00196    .capabilities = AST_FORMAT_AUDIO_MASK,
00197    .requester = jingle_request,
00198    .send_digit_begin = jingle_digit_begin,
00199    .send_digit_end = jingle_digit_end,
00200    .bridge = ast_rtp_bridge,
00201    .call = jingle_call,
00202    .hangup = jingle_hangup,
00203    .answer = jingle_answer,
00204    .read = jingle_read,
00205    .write = jingle_write,
00206    .exception = jingle_read,
00207    .indicate = jingle_indicate,
00208    .fixup = jingle_fixup,
00209    .send_html = jingle_sendhtml,
00210    .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
00211 };
00212 
00213 static struct sockaddr_in bindaddr = { 0, }; /*!< The address we bind to */
00214 
00215 static struct sched_context *sched; /*!< The scheduling context */
00216 static struct io_context *io; /*!< The IO context */
00217 static struct in_addr __ourip;
00218 
00219 
00220 /*! \brief RTP driver interface */
00221 static struct ast_rtp_protocol jingle_rtp = {
00222    type: "Jingle",
00223    get_rtp_info: jingle_get_rtp_peer,
00224    set_rtp_peer: jingle_set_rtp_peer,
00225    get_codec: jingle_get_codec,
00226 };
00227 
00228 static struct ast_cli_entry jingle_cli[] = {
00229    AST_CLI_DEFINE(jingle_do_reload, "Reload Jingle configuration"),
00230    AST_CLI_DEFINE(jingle_show_channels, "Show Jingle channels"),
00231 };
00232 
00233 
00234 static char externip[16];
00235 
00236 static struct jingle_container jingle_list;
00237 
00238 static void jingle_member_destroy(struct jingle *obj)
00239 {
00240    ast_free(obj);
00241 }
00242 
00243 static struct jingle *find_jingle(char *name, char *connection)
00244 {
00245    struct jingle *jingle = NULL;
00246 
00247    jingle = ASTOBJ_CONTAINER_FIND(&jingle_list, name);
00248    if (!jingle && strchr(name, '@'))
00249       jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingle_list, name, user,,, strcasecmp);
00250 
00251    if (!jingle) {          
00252       /* guest call */
00253       ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
00254          ASTOBJ_RDLOCK(iterator);
00255          if (!strcasecmp(iterator->name, "guest")) {
00256             jingle = iterator;
00257          }
00258          ASTOBJ_UNLOCK(iterator);
00259 
00260          if (jingle)
00261             break;
00262       });
00263 
00264    }
00265    return jingle;
00266 }
00267 
00268 
00269 static void add_codec_to_answer(const struct jingle_pvt *p, int codec, iks *dcodecs)
00270 {
00271    char *format = ast_getformatname(codec);
00272 
00273    if (!strcasecmp("ulaw", format)) {
00274       iks *payload_eg711u, *payload_pcmu;
00275       payload_pcmu = iks_new("payload-type");
00276       iks_insert_attrib(payload_pcmu, "id", "0");
00277       iks_insert_attrib(payload_pcmu, "name", "PCMU");
00278       payload_eg711u = iks_new("payload-type");
00279       iks_insert_attrib(payload_eg711u, "id", "100");
00280       iks_insert_attrib(payload_eg711u, "name", "EG711U");
00281       iks_insert_node(dcodecs, payload_pcmu);
00282       iks_insert_node(dcodecs, payload_eg711u);
00283    }
00284    if (!strcasecmp("alaw", format)) {
00285       iks *payload_eg711a;
00286       iks *payload_pcma = iks_new("payload-type");
00287       iks_insert_attrib(payload_pcma, "id", "8");
00288       iks_insert_attrib(payload_pcma, "name", "PCMA");
00289       payload_eg711a = iks_new("payload-type");
00290       iks_insert_attrib(payload_eg711a, "id", "101");
00291       iks_insert_attrib(payload_eg711a, "name", "EG711A");
00292       iks_insert_node(dcodecs, payload_pcma);
00293       iks_insert_node(dcodecs, payload_eg711a);
00294    }
00295    if (!strcasecmp("ilbc", format)) {
00296       iks *payload_ilbc = iks_new("payload-type");
00297       iks_insert_attrib(payload_ilbc, "id", "97");
00298       iks_insert_attrib(payload_ilbc, "name", "iLBC");
00299       iks_insert_node(dcodecs, payload_ilbc);
00300    }
00301    if (!strcasecmp("g723", format)) {
00302       iks *payload_g723 = iks_new("payload-type");
00303       iks_insert_attrib(payload_g723, "id", "4");
00304       iks_insert_attrib(payload_g723, "name", "G723");
00305       iks_insert_node(dcodecs, payload_g723);
00306    }
00307    ast_rtp_lookup_code(p->rtp, 1, codec);
00308 }
00309 
00310 static int jingle_accept_call(struct jingle *client, struct jingle_pvt *p)
00311 {
00312    struct jingle_pvt *tmp = client->p;
00313    struct aji_client *c = client->connection;
00314    iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
00315    int x;
00316    int pref_codec = 0;
00317    int alreadysent = 0;
00318 
00319    if (p->initiator)
00320       return 1;
00321 
00322    iq = iks_new("iq");
00323    jingle = iks_new(JINGLE_NODE);
00324    dcodecs = iks_new("description");
00325    if (iq && jingle && dcodecs) {
00326       iks_insert_attrib(dcodecs, "xmlns", JINGLE_AUDIO_RTP_NS);
00327 
00328       for (x = 0; x < 32; x++) {
00329          if (!(pref_codec = ast_codec_pref_index(&client->prefs, x)))
00330             break;
00331          if (!(client->capability & pref_codec))
00332             continue;
00333          if (alreadysent & pref_codec)
00334             continue;
00335          add_codec_to_answer(p, pref_codec, dcodecs);
00336          alreadysent |= pref_codec;
00337       }
00338       payload_red = iks_new("payload-type");
00339       iks_insert_attrib(payload_red, "id", "117");
00340       iks_insert_attrib(payload_red, "name", "red");
00341       payload_audio = iks_new("payload-type");
00342       iks_insert_attrib(payload_audio, "id", "106");
00343       iks_insert_attrib(payload_audio, "name", "audio/telephone-event");
00344       payload_cn = iks_new("payload-type");
00345       iks_insert_attrib(payload_cn, "id", "13");
00346       iks_insert_attrib(payload_cn, "name", "CN");
00347 
00348 
00349       iks_insert_attrib(iq, "type", "set");
00350       iks_insert_attrib(iq, "to", (p->them) ? p->them : client->user);
00351       iks_insert_attrib(iq, "id", client->connection->mid);
00352       ast_aji_increment_mid(client->connection->mid);
00353 
00354       iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00355       iks_insert_attrib(jingle, "action", JINGLE_ACCEPT);
00356       iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
00357       iks_insert_attrib(jingle, JINGLE_SID, tmp->sid);
00358       iks_insert_node(iq, jingle);
00359       iks_insert_node(jingle, dcodecs);
00360       iks_insert_node(dcodecs, payload_red);
00361       iks_insert_node(dcodecs, payload_audio);
00362       iks_insert_node(dcodecs, payload_cn);
00363 
00364       ast_aji_send(c, iq);
00365 
00366       iks_delete(payload_red);
00367       iks_delete(payload_audio);
00368       iks_delete(payload_cn);
00369       iks_delete(dcodecs);
00370       iks_delete(jingle);
00371       iks_delete(iq);
00372    }
00373    return 1;
00374 }
00375 
00376 static int jingle_ringing_ack(void *data, ikspak *pak)
00377 {
00378    struct jingle_pvt *p = data;
00379 
00380    if (p->ringrule)
00381       iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
00382    p->ringrule = NULL;
00383    if (p->owner)
00384       ast_queue_control(p->owner, AST_CONTROL_RINGING);
00385    return IKS_FILTER_EAT;
00386 }
00387 
00388 static int jingle_answer(struct ast_channel *ast)
00389 {
00390    struct jingle_pvt *p = ast->tech_pvt;
00391    struct jingle *client = p->parent;
00392    int res = 0;
00393 
00394    ast_debug(1, "Answer!\n");
00395    ast_mutex_lock(&p->lock);
00396    jingle_accept_call(client, p);
00397    ast_mutex_unlock(&p->lock);
00398    return res;
00399 }
00400 
00401 static enum ast_rtp_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp)
00402 {
00403    struct jingle_pvt *p = chan->tech_pvt;
00404    enum ast_rtp_get_result res = AST_RTP_GET_FAILED;
00405 
00406    if (!p)
00407       return res;
00408 
00409    ast_mutex_lock(&p->lock);
00410    if (p->rtp) {
00411       *rtp = p->rtp;
00412       res = AST_RTP_TRY_PARTIAL;
00413    }
00414    ast_mutex_unlock(&p->lock);
00415 
00416    return res;
00417 }
00418 
00419 static int jingle_get_codec(struct ast_channel *chan)
00420 {
00421    struct jingle_pvt *p = chan->tech_pvt;
00422    return p->peercapability;
00423 }
00424 
00425 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)
00426 {
00427    struct jingle_pvt *p;
00428 
00429    p = chan->tech_pvt;
00430    if (!p)
00431       return -1;
00432    ast_mutex_lock(&p->lock);
00433 
00434 /* if (rtp)
00435       ast_rtp_get_peer(rtp, &p->redirip);
00436    else
00437       memset(&p->redirip, 0, sizeof(p->redirip));
00438    p->redircodecs = codecs; */
00439 
00440    /* Reset lastrtprx timer */
00441    ast_mutex_unlock(&p->lock);
00442    return 0;
00443 }
00444 
00445 static int jingle_response(struct jingle *client, ikspak *pak, const char *reasonstr, const char *reasonstr2)
00446 {
00447    iks *response = NULL, *error = NULL, *reason = NULL;
00448    int res = -1;
00449 
00450    response = iks_new("iq");
00451    if (response) {
00452       iks_insert_attrib(response, "type", "result");
00453       iks_insert_attrib(response, "from", client->connection->jid->full);
00454       iks_insert_attrib(response, "to", iks_find_attrib(pak->x, "from"));
00455       iks_insert_attrib(response, "id", iks_find_attrib(pak->x, "id"));
00456       if (reasonstr) {
00457          error = iks_new("error");
00458          if (error) {
00459             iks_insert_attrib(error, "type", "cancel");
00460             reason = iks_new(reasonstr);
00461             if (reason)
00462                iks_insert_node(error, reason);
00463             iks_insert_node(response, error);
00464          }
00465       }
00466       ast_aji_send(client->connection, response);
00467       res = 0;
00468    }
00469    
00470    iks_delete(reason);
00471    iks_delete(error);
00472    iks_delete(response);
00473 
00474    return res;
00475 }
00476 
00477 static int jingle_is_answered(struct jingle *client, ikspak *pak)
00478 {
00479    struct jingle_pvt *tmp;
00480 
00481    ast_debug(1, "The client is %s\n", client->name);
00482    /* Make sure our new call doesn't exist yet */
00483    for (tmp = client->p; tmp; tmp = tmp->next) {
00484       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00485          break;
00486    }
00487 
00488    if (tmp) {
00489       if (tmp->owner)
00490          ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
00491    } else
00492       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00493    jingle_response(client, pak, NULL, NULL);
00494    return 1;
00495 }
00496 
00497 static int jingle_handle_dtmf(struct jingle *client, ikspak *pak)
00498 {
00499    struct jingle_pvt *tmp;
00500    iks *dtmfnode = NULL, *dtmfchild = NULL;
00501    char *dtmf;
00502    /* Make sure our new call doesn't exist yet */
00503    for (tmp = client->p; tmp; tmp = tmp->next) {
00504       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00505          break;
00506    }
00507 
00508    if (tmp) {
00509       if(iks_find_with_attrib(pak->x, "dtmf-method", "method", "rtp")) {
00510          jingle_response(client,pak,
00511                "feature-not-implemented xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'",
00512                "unsupported-dtmf-method xmlns='http://www.xmpp.org/extensions/xep-0181.html#ns-errors'");
00513          return -1;
00514       }
00515       if ((dtmfnode = iks_find(pak->x, "dtmf"))) {
00516          if((dtmf = iks_find_attrib(dtmfnode, "code"))) {
00517             if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-up")) {
00518                struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
00519                f.subclass = dtmf[0];
00520                ast_queue_frame(tmp->owner, &f);
00521                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00522             } else if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-down")) {
00523                struct ast_frame f = {AST_FRAME_DTMF_END, };
00524                f.subclass = dtmf[0];
00525                ast_queue_frame(tmp->owner, &f);
00526                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00527             } else if(iks_find_attrib(pak->x, "dtmf")) { /* 250 millasecond default */
00528                struct ast_frame f = {AST_FRAME_DTMF, };
00529                f.subclass = dtmf[0];
00530                ast_queue_frame(tmp->owner, &f);
00531                ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00532             }
00533          }
00534       } else if ((dtmfnode = iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "session-info"))) {
00535          if((dtmfchild = iks_find(dtmfnode, "dtmf"))) {
00536             if((dtmf = iks_find_attrib(dtmfchild, "code"))) {
00537                if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-up")) {
00538                   struct ast_frame f = {AST_FRAME_DTMF_END, };
00539                   f.subclass = dtmf[0];
00540                   ast_queue_frame(tmp->owner, &f);
00541                   ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00542                } else if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-down")) {
00543                   struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
00544                   f.subclass = dtmf[0];
00545                   ast_queue_frame(tmp->owner, &f);
00546                   ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass);
00547                }
00548             }
00549          }
00550       }
00551       jingle_response(client, pak, NULL, NULL);
00552       return 1;
00553    } else
00554       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00555 
00556    jingle_response(client, pak, NULL, NULL);
00557    return 1;
00558 }
00559 
00560 
00561 static int jingle_hangup_farend(struct jingle *client, ikspak *pak)
00562 {
00563    struct jingle_pvt *tmp;
00564 
00565    ast_debug(1, "The client is %s\n", client->name);
00566    /* Make sure our new call doesn't exist yet */
00567    for (tmp = client->p; tmp; tmp = tmp->next) {
00568       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
00569          break;
00570    }
00571 
00572    if (tmp) {
00573       tmp->alreadygone = 1;
00574       if (tmp->owner)
00575          ast_queue_hangup(tmp->owner);
00576    } else
00577       ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
00578    jingle_response(client, pak, NULL, NULL);
00579    return 1;
00580 }
00581 
00582 static int jingle_create_candidates(struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
00583 {
00584    struct jingle_candidate *tmp;
00585    struct aji_client *c = client->connection;
00586    struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
00587    struct sockaddr_in sin;
00588    struct sockaddr_in dest;
00589    struct in_addr us;
00590    struct in_addr externaddr;
00591    iks *iq, *jingle, *content, *transport, *candidate;
00592    char component[16], foundation[16], generation[16], network[16], pass[16], port[7], priority[16], user[16];
00593 
00594 
00595    iq = iks_new("iq");
00596    jingle = iks_new(JINGLE_NODE);
00597    content = iks_new("content");
00598    transport = iks_new("transport");
00599    candidate = iks_new("candidate");
00600    if (!iq || !jingle || !content || !transport || !candidate) {
00601       ast_log(LOG_ERROR, "Memory allocation error\n");
00602       goto safeout;
00603    }
00604    ours1 = ast_calloc(1, sizeof(*ours1));
00605    ours2 = ast_calloc(1, sizeof(*ours2));
00606    if (!ours1 || !ours2)
00607       goto safeout;
00608 
00609    iks_insert_node(iq, jingle);
00610    iks_insert_node(jingle, content);
00611    iks_insert_node(content, transport);
00612    iks_insert_node(transport, candidate);
00613 
00614    for (; p; p = p->next) {
00615       if (!strcasecmp(p->sid, sid))
00616          break;
00617    }
00618 
00619    if (!p) {
00620       ast_log(LOG_NOTICE, "No matching jingle session - SID %s!\n", sid);
00621       goto safeout;
00622    }
00623 
00624    ast_rtp_get_us(p->rtp, &sin);
00625    ast_find_ourip(&us, bindaddr);
00626 
00627    /* Setup our first jingle candidate */
00628    ours1->component = 1;
00629    ours1->foundation = (unsigned int)bindaddr.sin_addr.s_addr | AJI_CONNECT_HOST | AJI_PROTOCOL_UDP;
00630    ours1->generation = 0;
00631    ast_copy_string(ours1->ip, ast_inet_ntoa(us), sizeof(ours1->ip));
00632    ours1->network = 0;
00633    ours1->port = ntohs(sin.sin_port);
00634    ours1->priority = 1678246398;
00635    ours1->protocol = AJI_PROTOCOL_UDP;
00636    snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
00637    ast_copy_string(ours1->password, pass, sizeof(ours1->password));
00638    ours1->type = AJI_CONNECT_HOST;
00639    snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
00640    ast_copy_string(ours1->ufrag, user, sizeof(ours1->ufrag));
00641    p->ourcandidates = ours1;
00642 
00643    if (!ast_strlen_zero(externip)) {
00644       /* XXX We should really stun for this one not just go with externip XXX */
00645       if (inet_aton(externip, &externaddr))
00646          ast_log(LOG_WARNING, "Invalid extern IP : %s\n", externip);
00647 
00648       ours2->component = 1;
00649       ours2->foundation = (unsigned int)externaddr.s_addr | AJI_CONNECT_PRFLX | AJI_PROTOCOL_UDP;
00650       ours2->generation = 0;
00651       ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
00652       ours2->network = 0;
00653       ours2->port = ntohs(sin.sin_port);
00654       ours2->priority = 1678246397;
00655       ours2->protocol = AJI_PROTOCOL_UDP;
00656       snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
00657       ast_copy_string(ours2->password, pass, sizeof(ours2->password));
00658       ours2->type = AJI_CONNECT_PRFLX;
00659 
00660       snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
00661       ast_copy_string(ours2->ufrag, user, sizeof(ours2->ufrag));
00662       ours1->next = ours2;
00663       ours2 = NULL;
00664    }
00665    ours1 = NULL;
00666    dest.sin_addr = __ourip;
00667    dest.sin_port = sin.sin_port;
00668 
00669 
00670    for (tmp = p->ourcandidates; tmp; tmp = tmp->next) {
00671       snprintf(component, sizeof(component), "%u", tmp->component);
00672       snprintf(foundation, sizeof(foundation), "%u", tmp->foundation);
00673       snprintf(generation, sizeof(generation), "%u", tmp->generation);
00674       snprintf(network, sizeof(network), "%u", tmp->network);
00675       snprintf(port, sizeof(port), "%u", tmp->port);
00676       snprintf(priority, sizeof(priority), "%u", tmp->priority);
00677 
00678       iks_insert_attrib(iq, "from", c->jid->full);
00679       iks_insert_attrib(iq, "to", from);
00680       iks_insert_attrib(iq, "type", "set");
00681       iks_insert_attrib(iq, "id", c->mid);
00682       ast_aji_increment_mid(c->mid);
00683       iks_insert_attrib(jingle, "action", JINGLE_NEGOTIATE);
00684       iks_insert_attrib(jingle, JINGLE_SID, sid);
00685       iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from);
00686       iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00687       iks_insert_attrib(content, "creator", p->initiator ? "initiator" : "responder");
00688       iks_insert_attrib(content, "name", "asterisk-audio-content");
00689       iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
00690       iks_insert_attrib(candidate, "component", component);
00691       iks_insert_attrib(candidate, "foundation", foundation);
00692       iks_insert_attrib(candidate, "generation", generation);
00693       iks_insert_attrib(candidate, "ip", tmp->ip);
00694       iks_insert_attrib(candidate, "network", network);
00695       iks_insert_attrib(candidate, "port", port);
00696       iks_insert_attrib(candidate, "priority", priority);
00697       switch (tmp->protocol) {
00698       case AJI_PROTOCOL_UDP:
00699          iks_insert_attrib(candidate, "protocol", "udp");
00700          break;
00701       case AJI_PROTOCOL_SSLTCP:
00702          iks_insert_attrib(candidate, "protocol", "ssltcp");
00703          break;
00704       }
00705       iks_insert_attrib(candidate, "pwd", tmp->password);
00706       switch (tmp->type) {
00707       case AJI_CONNECT_HOST:
00708          iks_insert_attrib(candidate, "type", "host");
00709          break;
00710       case AJI_CONNECT_PRFLX:
00711          iks_insert_attrib(candidate, "type", "prflx");
00712          break;
00713       case AJI_CONNECT_RELAY:
00714          iks_insert_attrib(candidate, "type", "relay");
00715          break;
00716       case AJI_CONNECT_SRFLX:
00717          iks_insert_attrib(candidate, "type", "srflx");
00718          break;
00719       }
00720       iks_insert_attrib(candidate, "ufrag", tmp->ufrag);
00721 
00722       ast_aji_send(c, iq);
00723    }
00724    p->laststun = 0;
00725 
00726 safeout:
00727    if (ours1)
00728       ast_free(ours1);
00729    if (ours2)
00730       ast_free(ours2);
00731    iks_delete(iq);
00732    iks_delete(jingle);
00733    iks_delete(content);
00734    iks_delete(transport);
00735    iks_delete(candidate);
00736 
00737    return 1;
00738 }
00739 
00740 static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid)
00741 {
00742    struct jingle_pvt *tmp = NULL;
00743    struct aji_resource *resources = NULL;
00744    struct aji_buddy *buddy;
00745    char idroster[200];
00746 
00747    ast_debug(1, "The client is %s for alloc\n", client->name);
00748    if (!sid && !strchr(from, '/')) {   /* I started call! */
00749       if (!strcasecmp(client->name, "guest")) {
00750          buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from);
00751          if (buddy)
00752             resources = buddy->resources;
00753       } else if (client->buddy)
00754          resources = client->buddy->resources;
00755       while (resources) {
00756          if (resources->cap->jingle) {
00757             break;
00758          }
00759          resources = resources->next;
00760       }
00761       if (resources)
00762          snprintf(idroster, sizeof(idroster), "%s/%s", from, resources->resource);
00763       else {
00764          ast_log(LOG_ERROR, "no jingle capable clients to talk to.\n");
00765          return NULL;
00766       }
00767    }
00768    if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
00769       return NULL;
00770    }
00771 
00772    memcpy(&tmp->prefs, &client->prefs, sizeof(tmp->prefs));
00773 
00774    if (sid) {
00775       ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
00776       ast_copy_string(tmp->them, from, sizeof(tmp->them));
00777    } else {
00778       snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
00779       ast_copy_string(tmp->them, idroster, sizeof(tmp->them));
00780       tmp->initiator = 1;
00781    }
00782    tmp->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
00783    tmp->parent = client;
00784    if (!tmp->rtp) {
00785       ast_log(LOG_WARNING, "Out of RTP sessions?\n");
00786       ast_free(tmp);
00787       return NULL;
00788    }
00789    ast_copy_string(tmp->exten, "s", sizeof(tmp->exten));
00790    ast_mutex_init(&tmp->lock);
00791    ast_mutex_lock(&jinglelock);
00792    tmp->next = client->p;
00793    client->p = tmp;
00794    ast_mutex_unlock(&jinglelock);
00795    return tmp;
00796 }
00797 
00798 /*! \brief Start new jingle channel */
00799 static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title)
00800 {
00801    struct ast_channel *tmp;
00802    int fmt;
00803    int what;
00804    const char *str;
00805 
00806    if (title)
00807       str = title;
00808    else
00809       str = i->them;
00810    tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "", "", "", 0, "Jingle/%s-%04lx", str, ast_random() & 0xffff);
00811    if (!tmp) {
00812       ast_log(LOG_WARNING, "Unable to allocate Jingle channel structure!\n");
00813       return NULL;
00814    }
00815    tmp->tech = &jingle_tech;
00816 
00817    /* Select our native format based on codec preference until we receive
00818       something from another device to the contrary. */
00819    if (i->jointcapability)
00820       what = i->jointcapability;
00821    else if (i->capability)
00822       what = i->capability;
00823    else
00824       what = global_capability;
00825 
00826    /* Set Frame packetization */
00827    if (i->rtp)
00828       ast_rtp_codec_setpref(i->rtp, &i->prefs);
00829 
00830    tmp->nativeformats = ast_codec_choose(&i->prefs, what, 1) | (i->jointcapability & AST_FORMAT_VIDEO_MASK);
00831    fmt = ast_best_codec(tmp->nativeformats);
00832 
00833    if (i->rtp) {
00834       ast_channel_set_fd(tmp, 0, ast_rtp_fd(i->rtp));
00835       ast_channel_set_fd(tmp, 1, ast_rtcp_fd(i->rtp));
00836    }
00837    if (i->vrtp) {
00838       ast_channel_set_fd(tmp, 2, ast_rtp_fd(i->vrtp));
00839       ast_channel_set_fd(tmp, 3, ast_rtcp_fd(i->vrtp));
00840    }
00841    if (state == AST_STATE_RING)
00842       tmp->rings = 1;
00843    tmp->adsicpe = AST_ADSI_UNAVAILABLE;
00844    tmp->writeformat = fmt;
00845    tmp->rawwriteformat = fmt;
00846    tmp->readformat = fmt;
00847    tmp->rawreadformat = fmt;
00848    tmp->tech_pvt = i;
00849 
00850    tmp->callgroup = client->callgroup;
00851    tmp->pickupgroup = client->pickupgroup;
00852    tmp->cid.cid_pres = client->callingpres;
00853    if (!ast_strlen_zero(client->accountcode))
00854       ast_string_field_set(tmp, accountcode, client->accountcode);
00855    if (client->amaflags)
00856       tmp->amaflags = client->amaflags;
00857    if (!ast_strlen_zero(client->language))
00858       ast_string_field_set(tmp, language, client->language);
00859    if (!ast_strlen_zero(client->musicclass))
00860       ast_string_field_set(tmp, musicclass, client->musicclass);
00861    i->owner = tmp;
00862    ast_copy_string(tmp->context, client->context, sizeof(tmp->context));
00863    ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten));
00864    /* Don't use ast_set_callerid() here because it will
00865     * generate an unnecessary NewCallerID event  */
00866    tmp->cid.cid_ani = ast_strdup(i->cid_num);
00867    if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s"))
00868       tmp->cid.cid_dnid = ast_strdup(i->exten);
00869    tmp->priority = 1;
00870    if (i->rtp)
00871       ast_jb_configure(tmp, &global_jbconf);
00872    if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
00873       ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
00874       tmp->hangupcause = AST_CAUSE_SWITCH_CONGESTION;
00875       ast_hangup(tmp);
00876       tmp = NULL;
00877    }
00878 
00879    return tmp;
00880 }
00881 
00882 static int jingle_action(struct jingle *client, struct jingle_pvt *p, const char *action)
00883 {
00884    iks *iq, *jingle = NULL;
00885    int res = -1;
00886 
00887    iq = iks_new("iq");
00888    jingle = iks_new("jingle");
00889    
00890    if (iq) {
00891       iks_insert_attrib(iq, "type", "set");
00892       iks_insert_attrib(iq, "from", client->connection->jid->full);
00893       iks_insert_attrib(iq, "to", p->them);
00894       iks_insert_attrib(iq, "id", client->connection->mid);
00895       ast_aji_increment_mid(client->connection->mid);
00896       if (jingle) {
00897          iks_insert_attrib(jingle, "action", action);
00898          iks_insert_attrib(jingle, JINGLE_SID, p->sid);
00899          iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
00900          iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
00901 
00902          iks_insert_node(iq, jingle);
00903 
00904          ast_aji_send(client->connection, iq);
00905          res = 0;
00906       }
00907    }
00908    
00909    iks_delete(jingle);
00910    iks_delete(iq);
00911    
00912    return res;
00913 }
00914 
00915 static void jingle_free_candidates(struct jingle_candidate *candidate)
00916 {
00917    struct jingle_candidate *last;
00918    while (candidate) {
00919       last = candidate;
00920       candidate = candidate->next;
00921       ast_free(last);
00922    }
00923 }
00924 
00925 static void jingle_free_pvt(struct jingle *client, struct jingle_pvt *p)
00926 {
00927    struct jingle_pvt *cur, *prev = NULL;
00928    cur = client->p;
00929    while (cur) {
00930       if (cur == p) {
00931          if (prev)
00932             prev->next = p->next;
00933          else
00934             client->p = p->next;
00935          break;
00936       }
00937       prev = cur;
00938       cur = cur->next;
00939    }
00940    if (p->ringrule)
00941       iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
00942    if (p->owner)
00943       ast_log(LOG_WARNING, "Uh oh, there's an owner, this is going to be messy.\n");
00944    if (p->rtp)
00945       ast_rtp_destroy(p->rtp);
00946    if (p->vrtp)
00947       ast_rtp_destroy(p->vrtp);
00948    jingle_free_candidates(p->theircandidates);
00949    ast_free(p);
00950 }
00951 
00952 
00953 static int jingle_newcall(struct jingle *client, ikspak *pak)
00954 {
00955    struct jingle_pvt *p, *tmp = client->p;
00956    struct ast_channel *chan;
00957    int res;
00958    iks *codec, *content, *description;
00959    char *from = NULL;
00960 
00961    /* Make sure our new call doesn't exist yet */
00962    from = iks_find_attrib(pak->x,"to");
00963    if(!from)
00964       from = client->connection->jid->full;
00965 
00966    while (tmp) {
00967       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
00968          ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
00969          jingle_response(client, pak, "out-of-order", NULL);
00970          return -1;
00971       }
00972       tmp = tmp->next;
00973    }
00974 
00975    if (!strcasecmp(client->name, "guest")){
00976       /* the guest account is not tied to any configured XMPP client,
00977          let's set it now */
00978       client->connection = ast_aji_get_client(from);
00979       if (!client->connection) {
00980          ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", from);
00981          return -1;
00982       }
00983    }
00984 
00985    p = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, JINGLE_SID));
00986    if (!p) {
00987       ast_log(LOG_WARNING, "Unable to allocate jingle structure!\n");
00988       return -1;
00989    }
00990    chan = jingle_new(client, p, AST_STATE_DOWN, pak->from->user);
00991    if (!chan) {
00992       jingle_free_pvt(client, p);
00993       return -1;
00994    }
00995    ast_mutex_lock(&p->lock);
00996    ast_copy_string(p->them, pak->from->full, sizeof(p->them));
00997    if (iks_find_attrib(pak->query, JINGLE_SID)) {
00998       ast_copy_string(p->sid, iks_find_attrib(pak->query, JINGLE_SID),
00999             sizeof(p->sid));
01000    }
01001    
01002    /* content points to the first <content/> tag */   
01003    content = iks_child(iks_child(pak->x));
01004    while (content) {
01005       description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_AUDIO_RTP_NS);
01006       if (description) {
01007          /* audio content found */
01008          codec = iks_child(iks_child(content));
01009               ast_copy_string(p->audio_content_name, iks_find_attrib(content, "name"), sizeof(p->audio_content_name));
01010 
01011          while (codec) {
01012             ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
01013             ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
01014             codec = iks_next(codec);
01015          }
01016       }
01017       
01018       description = NULL;
01019       codec = NULL;
01020 
01021       description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_VIDEO_RTP_NS);
01022       if (description) {
01023          /* video content found */
01024          codec = iks_child(iks_child(content));
01025               ast_copy_string(p->video_content_name, iks_find_attrib(content, "name"), sizeof(p->video_content_name));
01026 
01027          while (codec) {
01028             ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
01029             ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
01030             codec = iks_next(codec);
01031          }
01032       }
01033       
01034       content = iks_next(content);
01035    }
01036 
01037    ast_mutex_unlock(&p->lock);
01038    ast_setstate(chan, AST_STATE_RING);
01039    res = ast_pbx_start(chan);
01040    
01041    switch (res) {
01042    case AST_PBX_FAILED:
01043       ast_log(LOG_WARNING, "Failed to start PBX :(\n");
01044       jingle_response(client, pak, "service-unavailable", NULL);
01045       break;
01046    case AST_PBX_CALL_LIMIT:
01047       ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
01048       jingle_response(client, pak, "service-unavailable", NULL);
01049       break;
01050    case AST_PBX_SUCCESS:
01051       jingle_response(client, pak, NULL, NULL);
01052       jingle_create_candidates(client, p,
01053                 iks_find_attrib(pak->query, JINGLE_SID),
01054                 iks_find_attrib(pak->x, "from"));
01055       /* nothing to do */
01056       break;
01057    }
01058 
01059    return 1;
01060 }
01061 
01062 static int jingle_update_stun(struct jingle *client, struct jingle_pvt *p)
01063 {
01064    struct jingle_candidate *tmp;
01065    struct hostent *hp;
01066    struct ast_hostent ahp;
01067    struct sockaddr_in sin;
01068 
01069    if (time(NULL) == p->laststun)
01070       return 0;
01071 
01072    tmp = p->theircandidates;
01073    p->laststun = time(NULL);
01074    while (tmp) {
01075       char username[256];
01076       hp = ast_gethostbyname(tmp->ip, &ahp);
01077       sin.sin_family = AF_INET;
01078       memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
01079       sin.sin_port = htons(tmp->port);
01080       snprintf(username, sizeof(username), "%s:%s", tmp->ufrag, p->ourcandidates->ufrag);
01081 
01082       ast_rtp_stun_request(p->rtp, &sin, username);
01083       tmp = tmp->next;
01084    }
01085    return 1;
01086 }
01087 
01088 static int jingle_add_candidate(struct jingle *client, ikspak *pak)
01089 {
01090    struct jingle_pvt *p = NULL, *tmp = NULL;
01091    struct aji_client *c = client->connection;
01092    struct jingle_candidate *newcandidate = NULL;
01093    iks *traversenodes = NULL, *receipt = NULL;
01094 
01095    for (tmp = client->p; tmp; tmp = tmp->next) {
01096       if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
01097          p = tmp;
01098          break;
01099       }
01100    }
01101 
01102    if (!p)
01103       return -1;
01104 
01105    traversenodes = pak->query;
01106    while(traversenodes) {
01107       if(!strcasecmp(iks_name(traversenodes), "jingle")) {
01108          traversenodes = iks_child(traversenodes);
01109          continue;
01110       }
01111       if(!strcasecmp(iks_name(traversenodes), "content")) {
01112          traversenodes = iks_child(traversenodes);
01113          continue;
01114       }
01115       if(!strcasecmp(iks_name(traversenodes), "transport")) {
01116          traversenodes = iks_child(traversenodes);
01117          continue;
01118       }
01119 
01120       if(!strcasecmp(iks_name(traversenodes), "candidate")) {
01121          newcandidate = ast_calloc(1, sizeof(*newcandidate));
01122          if (!newcandidate)
01123             return 0;
01124          ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "ip"), sizeof(newcandidate->ip));
01125          newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
01126          ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "pwd"), sizeof(newcandidate->password));
01127          if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
01128             newcandidate->protocol = AJI_PROTOCOL_UDP;
01129          else if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
01130             newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
01131          
01132          if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "host"))
01133             newcandidate->type = AJI_CONNECT_HOST;
01134          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "prflx"))
01135             newcandidate->type = AJI_CONNECT_PRFLX;
01136          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
01137             newcandidate->type = AJI_CONNECT_RELAY;
01138          else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "srflx"))
01139             newcandidate->type = AJI_CONNECT_SRFLX;
01140 
01141          newcandidate->network = atoi(iks_find_attrib(traversenodes, "network"));
01142          newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
01143          newcandidate->next = NULL;
01144       
01145          newcandidate->next = p->theircandidates;
01146          p->theircandidates = newcandidate;
01147          p->laststun = 0;
01148          jingle_update_stun(p->parent, p);
01149          newcandidate = NULL;
01150       }
01151       traversenodes = iks_next(traversenodes);
01152    }
01153    
01154    receipt = iks_new("iq");
01155    iks_insert_attrib(receipt, "type", "result");
01156    iks_insert_attrib(receipt, "from", c->jid->full);
01157    iks_insert_attrib(receipt, "to", iks_find_attrib(pak->x, "from"));
01158    iks_insert_attrib(receipt, "id", iks_find_attrib(pak->x, "id"));
01159    ast_aji_send(c, receipt);
01160 
01161    iks_delete(receipt);
01162 
01163    return 1;
01164 }
01165 
01166 static struct ast_frame *jingle_rtp_read(struct ast_channel *ast, struct jingle_pvt *p)
01167 {
01168    struct ast_frame *f;
01169 
01170    if (!p->rtp)
01171       return &ast_null_frame;
01172    f = ast_rtp_read(p->rtp);
01173    jingle_update_stun(p->parent, p);
01174    if (p->owner) {
01175       /* We already hold the channel lock */
01176       if (f->frametype == AST_FRAME_VOICE) {
01177          if (f->subclass != (p->owner->nativeformats & AST_FORMAT_AUDIO_MASK)) {
01178             ast_debug(1, "Oooh, format changed to %d\n", f->subclass);
01179             p->owner->nativeformats =
01180                (p->owner->nativeformats & AST_FORMAT_VIDEO_MASK) | f->subclass;
01181             ast_set_read_format(p->owner, p->owner->readformat);
01182             ast_set_write_format(p->owner, p->owner->writeformat);
01183          }
01184 /*       if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) {
01185             f = ast_dsp_process(p->owner, p->vad, f);
01186             if (f && (f->frametype == AST_FRAME_DTMF))
01187                ast_debug(1, "* Detected inband DTMF '%c'\n", f->subclass);
01188               } */
01189       }
01190    }
01191    return f;
01192 }
01193 
01194 static struct ast_frame *jingle_read(struct ast_channel *ast)
01195 {
01196    struct ast_frame *fr;
01197    struct jingle_pvt *p = ast->tech_pvt;
01198 
01199    ast_mutex_lock(&p->lock);
01200    fr = jingle_rtp_read(ast, p);
01201    ast_mutex_unlock(&p->lock);
01202    return fr;
01203 }
01204 
01205 /*! \brief Send frame to media channel (rtp) */
01206 static int jingle_write(struct ast_channel *ast, struct ast_frame *frame)
01207 {
01208    struct jingle_pvt *p = ast->tech_pvt;
01209    int res = 0;
01210 
01211    switch (frame->frametype) {
01212    case AST_FRAME_VOICE:
01213       if (!(frame->subclass & ast->nativeformats)) {
01214          ast_log(LOG_WARNING,
01215                "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
01216                frame->subclass, ast->nativeformats, ast->readformat,
01217                ast->writeformat);
01218          return 0;
01219       }
01220       if (p) {
01221          ast_mutex_lock(&p->lock);
01222          if (p->rtp) {
01223             res = ast_rtp_write(p->rtp, frame);
01224          }
01225          ast_mutex_unlock(&p->lock);
01226       }
01227       break;
01228    case AST_FRAME_VIDEO:
01229       if (p) {
01230          ast_mutex_lock(&p->lock);
01231          if (p->vrtp) {
01232             res = ast_rtp_write(p->vrtp, frame);
01233          }
01234          ast_mutex_unlock(&p->lock);
01235       }
01236       break;
01237    case AST_FRAME_IMAGE:
01238       return 0;
01239       break;
01240    default:
01241       ast_log(LOG_WARNING, "Can't send %d type frames with Jingle write\n",
01242             frame->frametype);
01243       return 0;
01244    }
01245 
01246    return res;
01247 }
01248 
01249 static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
01250 {
01251    struct jingle_pvt *p = newchan->tech_pvt;
01252    ast_mutex_lock(&p->lock);
01253 
01254    if ((p->owner != oldchan)) {
01255       ast_mutex_unlock(&p->lock);
01256       return -1;
01257    }
01258    if (p->owner == oldchan)
01259       p->owner = newchan;
01260    ast_mutex_unlock(&p->lock);
01261    return 0;
01262 }
01263 
01264 static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
01265 {
01266    int res = 0;
01267 
01268    switch (condition) {
01269    case AST_CONTROL_HOLD:
01270       ast_moh_start(ast, data, NULL);
01271       break;
01272    case AST_CONTROL_UNHOLD:
01273       ast_moh_stop(ast);
01274       break;
01275    default:
01276       ast_log(LOG_NOTICE, "Don't know how to indicate condition '%d'\n", condition);
01277       res = -1;
01278    }
01279 
01280    return res;
01281 }
01282 
01283 static int jingle_digit(struct ast_channel *ast, char digit, unsigned int duration)
01284 {
01285    struct jingle_pvt *p = ast->tech_pvt;
01286    struct jingle *client = p->parent;
01287    iks *iq, *jingle, *dtmf;
01288    char buffer[2] = {digit, '\0'};
01289    iq = iks_new("iq");
01290    jingle = iks_new("jingle");
01291    dtmf = iks_new("dtmf");
01292    if(!iq || !jingle || !dtmf) {
01293       iks_delete(iq);
01294       iks_delete(jingle);
01295       iks_delete(dtmf);
01296       ast_log(LOG_ERROR, "Did not send dtmf do to memory issue\n");
01297       return -1;
01298    }
01299 
01300    iks_insert_attrib(iq, "type", "set");
01301    iks_insert_attrib(iq, "to", p->them);
01302    iks_insert_attrib(iq, "from", client->connection->jid->full);
01303    iks_insert_attrib(iq, "id", client->connection->mid);
01304    ast_aji_increment_mid(client->connection->mid);
01305    iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
01306    iks_insert_attrib(jingle, "action", "session-info");
01307    iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
01308    iks_insert_attrib(jingle, "sid", p->sid);
01309    iks_insert_attrib(dtmf, "xmlns", JINGLE_DTMF_NS);
01310    iks_insert_attrib(dtmf, "code", buffer);
01311    iks_insert_node(iq, jingle);
01312    iks_insert_node(jingle, dtmf);
01313 
01314    ast_mutex_lock(&p->lock);
01315    if (ast->dtmff.frametype == AST_FRAME_DTMF_BEGIN || duration == 0) {
01316       iks_insert_attrib(dtmf, "action", "button-down");
01317    } else if (ast->dtmff.frametype == AST_FRAME_DTMF_END || duration != 0) {
01318       iks_insert_attrib(dtmf, "action", "button-up");
01319    }
01320    ast_aji_send(client->connection, iq);
01321 
01322    iks_delete(iq);
01323    iks_delete(jingle);
01324    iks_delete(dtmf);
01325    ast_mutex_unlock(&p->lock);
01326    return 0;
01327 }
01328 
01329 static int jingle_digit_begin(struct ast_channel *chan, char digit)
01330 {
01331    return jingle_digit(chan, digit, 0);
01332 }
01333 
01334 static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
01335 {
01336    return jingle_digit(ast, digit, duration);
01337 }
01338 
01339 static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
01340 {
01341    ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");
01342 
01343    return -1;
01344 }
01345 static int jingle_transmit_invite(struct jingle_pvt *p)
01346 {
01347    struct jingle *aux = NULL;
01348    struct aji_client *client = NULL;
01349    iks *iq, *jingle, *content, *description, *transport;
01350    iks *payload_eg711u, *payload_pcmu;
01351 
01352    aux = p->parent;
01353    client = aux->connection;
01354    iq = iks_new("iq");
01355    jingle = iks_new(JINGLE_NODE);
01356    content = iks_new("content");
01357    description = iks_new("description");
01358    transport = iks_new("transport");
01359    payload_pcmu = iks_new("payload-type");
01360    payload_eg711u = iks_new("payload-type");
01361 
01362    ast_copy_string(p->audio_content_name, "asterisk-audio-content", sizeof(p->audio_content_name));
01363 
01364    iks_insert_attrib(iq, "type", "set");
01365    iks_insert_attrib(iq, "to", p->them);
01366    iks_insert_attrib(iq, "from", client->jid->full);
01367    iks_insert_attrib(iq, "id", client->mid);
01368    ast_aji_increment_mid(client->mid);
01369    iks_insert_attrib(jingle, "action", JINGLE_INITIATE);
01370    iks_insert_attrib(jingle, JINGLE_SID, p->sid);
01371    iks_insert_attrib(jingle, "initiator", client->jid->full);
01372    iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
01373 
01374    /* For now, we only send one audio based content */
01375    iks_insert_attrib(content, "creator", "initiator");
01376    iks_insert_attrib(content, "name", p->audio_content_name);
01377    iks_insert_attrib(content, "profile", "RTP/AVP");
01378    iks_insert_attrib(description, "xmlns", JINGLE_AUDIO_RTP_NS);
01379    iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
01380    iks_insert_attrib(payload_pcmu, "id", "0");
01381    iks_insert_attrib(payload_pcmu, "name", "PCMU");
01382    iks_insert_attrib(payload_eg711u, "id", "100");
01383    iks_insert_attrib(payload_eg711u, "name", "EG711U");
01384    iks_insert_node(description, payload_pcmu);
01385    iks_insert_node(description, payload_eg711u);
01386    iks_insert_node(content, description);
01387    iks_insert_node(content, transport);
01388    iks_insert_node(jingle, content);
01389    iks_insert_node(iq, jingle);
01390 
01391    ast_aji_send(client, iq);
01392 
01393    iks_delete(iq);
01394    iks_delete(jingle);
01395    iks_delete(content);
01396    iks_delete(description);
01397    iks_delete(transport);
01398    iks_delete(payload_eg711u);
01399    iks_delete(payload_pcmu);
01400    return 0;
01401 }
01402 
01403 /* Not in use right now.
01404 static int jingle_auto_congest(void *nothing)
01405 {
01406    struct jingle_pvt *p = nothing;
01407 
01408    ast_mutex_lock(&p->lock);
01409    if (p->owner) {
01410       if (!ast_channel_trylock(p->owner)) {
01411          ast_log(LOG_NOTICE, "Auto-congesting %s\n", p->owner->name);
01412          ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
01413          ast_channel_unlock(p->owner);
01414       }
01415    }
01416    ast_mutex_unlock(&p->lock);
01417    return 0;
01418 }
01419 */
01420 
01421 /*! \brief Initiate new call, part of PBX interface 
01422  *    dest is the dial string */
01423 static int jingle_call(struct ast_channel *ast, char *dest, int timeout)
01424 {
01425    struct jingle_pvt *p = ast->tech_pvt;
01426 
01427    if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
01428       ast_log(LOG_WARNING, "jingle_call called on %s, neither down nor reserved\n", ast->name);
01429       return -1;
01430    }
01431 
01432    ast_setstate(ast, AST_STATE_RING);
01433    p->jointcapability = p->capability;
01434    if (!p->ringrule) {
01435       ast_copy_string(p->ring, p->parent->connection->mid, sizeof(p->ring));
01436       p->ringrule = iks_filter_add_rule(p->parent->connection->f, jingle_ringing_ack, p,
01437                      IKS_RULE_ID, p->ring, IKS_RULE_DONE);
01438    } else
01439       ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");
01440 
01441    jingle_transmit_invite(p);
01442    jingle_create_candidates(p->parent, p, p->sid, p->them);
01443 
01444    return 0;
01445 }
01446 
01447 /*! \brief Hangup a call through the jingle proxy channel */
01448 static int jingle_hangup(struct ast_channel *ast)
01449 {
01450    struct jingle_pvt *p = ast->tech_pvt;
01451    struct jingle *client;
01452 
01453    ast_mutex_lock(&p->lock);
01454    client = p->parent;
01455    p->owner = NULL;
01456    ast->tech_pvt = NULL;
01457    if (!p->alreadygone)
01458       jingle_action(client, p, JINGLE_TERMINATE);
01459    ast_mutex_unlock(&p->lock);
01460 
01461    jingle_free_pvt(client, p);
01462 
01463    return 0;
01464 }
01465 
01466 /*! \brief Part of PBX interface */
01467 static struct ast_channel *jingle_request(const char *request_type, int format, void *data, int *cause)
01468 {
01469    struct jingle_pvt *p = NULL;
01470    struct jingle *client = NULL;
01471    char *sender = NULL, *to = NULL, *s = NULL;
01472    struct ast_channel *chan = NULL;
01473 
01474    if (data) {
01475       s = ast_strdupa(data);
01476       if (s) {
01477          sender = strsep(&s, "/");
01478          if (sender && (sender[0] != '\0'))
01479             to = strsep(&s, "/");
01480          if (!to) {
01481             ast_log(LOG_ERROR, "Bad arguments in Jingle Dialstring: %s\n", (char*) data);
01482             return NULL;
01483          }
01484       }
01485    }
01486 
01487    client = find_jingle(to, sender);
01488    if (!client) {
01489       ast_log(LOG_WARNING, "Could not find recipient.\n");
01490       return NULL;
01491    }
01492    if (!strcasecmp(client->name, "guest")){
01493       /* the guest account is not tied to any configured XMPP client,
01494          let's set it now */
01495       client->connection = ast_aji_get_client(sender);
01496       if (!client->connection) {
01497          ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", sender);
01498          return NULL;
01499       }
01500    }
01501        
01502    ASTOBJ_WRLOCK(client);
01503    p = jingle_alloc(client, to, NULL);
01504    if (p)
01505       chan = jingle_new(client, p, AST_STATE_DOWN, to);
01506    ASTOBJ_UNLOCK(client);
01507 
01508    return chan;
01509 }
01510 
01511 /*! \brief CLI command "jingle show channels" */
01512 static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01513 {
01514 #define FORMAT  "%-30.30s  %-30.30s  %-15.15s  %-5.5s %-5.5s \n"
01515    struct jingle_pvt *p;
01516    struct ast_channel *chan;
01517    int numchans = 0;
01518    char them[AJI_MAX_JIDLEN];
01519    char *jid = NULL;
01520    char *resource = NULL;
01521 
01522    switch (cmd) {
01523    case CLI_INIT:
01524       e->command = "jingle show channels";
01525       e->usage =
01526          "Usage: jingle show channels\n"
01527          "       Shows current state of the Jingle channels.\n";
01528       return NULL;
01529    case CLI_GENERATE:
01530       return NULL;
01531    }
01532 
01533    if (a->argc != 3)
01534       return CLI_SHOWUSAGE;
01535 
01536    ast_mutex_lock(&jinglelock);
01537    ast_cli(a->fd, FORMAT, "Channel", "Jabber ID", "Resource", "Read", "Write");
01538    ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
01539       ASTOBJ_WRLOCK(iterator);
01540       p = iterator->p;
01541       while(p) {
01542          chan = p->owner;
01543          ast_copy_string(them, p->them, sizeof(them));
01544          jid = them;
01545          resource = strchr(them, '/');
01546          if (!resource)
01547             resource = "None";
01548          else {
01549             *resource = '\0';
01550             resource ++;
01551          }
01552          if (chan)
01553             ast_cli(a->fd, FORMAT, 
01554                chan->name,
01555                jid,
01556                resource,
01557                ast_getformatname(chan->readformat),
01558                ast_getformatname(chan->writeformat)               
01559                );
01560          else 
01561             ast_log(LOG_WARNING, "No available channel\n");
01562          numchans ++;
01563          p = p->next;
01564       }
01565       ASTOBJ_UNLOCK(iterator);
01566    });
01567 
01568    ast_mutex_unlock(&jinglelock);
01569 
01570    ast_cli(a->fd, "%d active jingle channel%s\n", numchans, (numchans != 1) ? "s" : "");
01571    return CLI_SUCCESS;
01572 #undef FORMAT
01573 }
01574 
01575 /*! \brief CLI command "jingle reload" */
01576 static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01577 {
01578    switch (cmd) {
01579    case CLI_INIT:
01580       e->command = "jingle reload";
01581       e->usage =
01582          "Usage: jingle reload\n"
01583          "       Reload jingle channel driver.\n";
01584       return NULL;
01585    case CLI_GENERATE:
01586       return NULL;
01587    }  
01588    
01589    return CLI_SUCCESS;
01590 }
01591 
01592 static int jingle_parser(void *data, ikspak *pak)
01593 {
01594    struct jingle *client = ASTOBJ_REF((struct jingle *) data);
01595    ast_log(LOG_NOTICE, "Filter matched\n");
01596 
01597    if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INITIATE)) {
01598       /* New call */
01599       jingle_newcall(client, pak);
01600    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_NEGOTIATE)) {
01601       ast_debug(3, "About to add candidate!\n");
01602       jingle_add_candidate(client, pak);
01603       ast_debug(3, "Candidate Added!\n");
01604    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_ACCEPT)) {
01605       jingle_is_answered(client, pak);
01606    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INFO)) {
01607       jingle_handle_dtmf(client, pak);
01608    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_TERMINATE)) {
01609       jingle_hangup_farend(client, pak);
01610    } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "reject")) {
01611       jingle_hangup_farend(client, pak);
01612    }
01613    ASTOBJ_UNREF(client, jingle_member_destroy);
01614    return IKS_FILTER_EAT;
01615 }
01616 /* Not using this anymore probably take out soon 
01617 static struct jingle_candidate *jingle_create_candidate(char *args)
01618 {
01619    char *name, *type, *preference, *protocol;
01620    struct jingle_candidate *res;
01621    res = ast_calloc(1, sizeof(*res));
01622    if (args)
01623       name = args;
01624    if ((args = strchr(args, ','))) {
01625       *args = '\0';
01626       args++;
01627       preference = args;
01628    }
01629    if ((args = strchr(args, ','))) {
01630       *args = '\0';
01631       args++;
01632       protocol = args;
01633    }
01634    if ((args = strchr(args, ','))) {
01635       *args = '\0';
01636       args++;
01637       type = args;
01638    }
01639    if (name)
01640       ast_copy_string(res->name, name, sizeof(res->name));
01641    if (preference) {
01642       res->preference = atof(preference);
01643    }
01644    if (protocol) {
01645       if (!strcasecmp("udp", protocol))
01646          res->protocol = AJI_PROTOCOL_UDP;
01647       if (!strcasecmp("ssltcp", protocol))
01648          res->protocol = AJI_PROTOCOL_SSLTCP;
01649    }
01650    if (type) {
01651       if (!strcasecmp("host", type))
01652          res->type = AJI_CONNECT_HOST;
01653       if (!strcasecmp("prflx", type))
01654          res->type = AJI_CONNECT_PRFLX;
01655       if (!strcasecmp("relay", type))
01656          res->type = AJI_CONNECT_RELAY;
01657       if (!strcasecmp("srflx", type))
01658          res->type = AJI_CONNECT_SRFLX;
01659    }
01660 
01661    return res;
01662 }
01663 */
01664 
01665 static int jingle_create_member(char *label, struct ast_variable *var, int allowguest,
01666                         struct ast_codec_pref prefs, char *context,
01667                         struct jingle *member)
01668 {
01669    struct aji_client *client;
01670 
01671    if (!member)
01672       ast_log(LOG_WARNING, "Out of memory.\n");
01673 
01674    ast_copy_string(member->name, label, sizeof(member->name));
01675    ast_copy_string(member->user, label, sizeof(member->user));
01676    ast_copy_string(member->context, context, sizeof(member->context));
01677    member->allowguest = allowguest;
01678    member->prefs = prefs;
01679    while (var) {
01680 #if 0
01681       struct jingle_candidate *candidate = NULL;
01682 #endif
01683       if (!strcasecmp(var->name, "username"))
01684          ast_copy_string(member->user, var->value, sizeof(member->user));
01685       else if (!strcasecmp(var->name, "disallow"))
01686          ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 0);
01687       else if (!strcasecmp(var->name, "allow"))
01688          ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 1);
01689       else if (!strcasecmp(var->name, "context"))
01690          ast_copy_string(member->context, var->value, sizeof(member->context));
01691 #if 0
01692       else if (!strcasecmp(var->name, "candidate")) {
01693          candidate = jingle_create_candidate(var->value);
01694          if (candidate) {
01695             candidate->next = member->ourcandidates;
01696             member->ourcandidates = candidate;
01697          }
01698       }
01699 #endif
01700       else if (!strcasecmp(var->name, "connection")) {
01701          if ((client = ast_aji_get_client(var->value))) {
01702             member->connection = client;
01703             iks_filter_add_rule(client->f, jingle_parser, member,
01704                       IKS_RULE_TYPE, IKS_PAK_IQ,
01705                       IKS_RULE_FROM_PARTIAL, member->user,
01706                       IKS_RULE_NS, JINGLE_NS,
01707                       IKS_RULE_DONE);
01708          } else {
01709             ast_log(LOG_ERROR, "connection referenced not found!\n");
01710             return 0;
01711          }
01712       }
01713       var = var->next;
01714    }
01715    if (member->connection && member->user)
01716       member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user);
01717    else {
01718       ast_log(LOG_ERROR, "No Connection or Username!\n");
01719    }
01720    return 1;
01721 }
01722 
01723 static int jingle_load_config(void)
01724 {
01725    char *cat = NULL;
01726    struct ast_config *cfg = NULL;
01727    char context[100];
01728    int allowguest = 1;
01729    struct ast_variable *var;
01730    struct jingle *member;
01731    struct hostent *hp;
01732    struct ast_hostent ahp;
01733    struct ast_codec_pref prefs;
01734    struct aji_client_container *clients;
01735    struct jingle_candidate *global_candidates = NULL;
01736    struct ast_flags config_flags = { 0 };
01737 
01738    cfg = ast_config_load(JINGLE_CONFIG, config_flags);
01739    if (!cfg)
01740       return 0;
01741 
01742    /* Copy the default jb config over global_jbconf */
01743    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
01744 
01745    cat = ast_category_browse(cfg, NULL);
01746    for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
01747       /* handle jb conf */
01748       if (!ast_jb_read_conf(&global_jbconf, var->name, var->value))
01749          continue;
01750 
01751       if (!strcasecmp(var->name, "allowguest"))
01752          allowguest =
01753             (ast_true(ast_variable_retrieve(cfg, "general", "allowguest"))) ? 1 : 0;
01754       else if (!strcasecmp(var->name, "disallow"))
01755          ast_parse_allow_disallow(&prefs, &global_capability, var->value, 0);
01756       else if (!strcasecmp(var->name, "allow"))
01757          ast_parse_allow_disallow(&prefs, &global_capability, var->value, 1);
01758       else if (!strcasecmp(var->name, "context"))
01759          ast_copy_string(context, var->value, sizeof(context));
01760       else if (!strcasecmp(var->name, "externip"))
01761          ast_copy_string(externip, var->value, sizeof(externip));
01762       else if (!strcasecmp(var->name, "bindaddr")) {
01763          if (!(hp = ast_gethostbyname(var->value, &ahp))) {
01764             ast_log(LOG_WARNING, "Invalid address: %s\n", var->value);
01765          } else {
01766             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
01767          }
01768       }
01769 /*  Idea to allow for custom candidates  */
01770 /*
01771       else if (!strcasecmp(var->name, "candidate")) {
01772          candidate = jingle_create_candidate(var->value);
01773          if (candidate) {
01774             candidate->next = global_candidates;
01775             global_candidates = candidate;
01776          }
01777       }
01778 */
01779    }
01780    while (cat) {
01781       if (strcasecmp(cat, "general")) {
01782          var = ast_variable_browse(cfg, cat);
01783          member = ast_calloc(1, sizeof(*member));
01784          ASTOBJ_INIT(member);
01785          ASTOBJ_WRLOCK(member);
01786          if (!strcasecmp(cat, "guest")) {
01787             ast_copy_string(member->name, "guest", sizeof(member->name));
01788             ast_copy_string(member->user, "guest", sizeof(member->user));
01789             ast_copy_string(member->context, context, sizeof(member->context));
01790             member->allowguest = allowguest;
01791             member->prefs = prefs;
01792             while (var) {
01793                if (!strcasecmp(var->name, "disallow"))
01794                   ast_parse_allow_disallow(&member->prefs, &member->capability,
01795                                      var->value, 0);
01796                else if (!strcasecmp(var->name, "allow"))
01797                   ast_parse_allow_disallow(&member->prefs, &member->capability,
01798                                      var->value, 1);
01799                else if (!strcasecmp(var->name, "context"))
01800                   ast_copy_string(member->context, var->value,
01801                               sizeof(member->context));
01802                else if (!strcasecmp(var->name, "parkinglot"))
01803                   ast_copy_string(member->parkinglot, var->value,
01804                               sizeof(member->parkinglot));
01805 /*  Idea to allow for custom candidates  */
01806 /*
01807                else if (!strcasecmp(var->name, "candidate")) {
01808                   candidate = jingle_create_candidate(var->value);
01809                   if (candidate) {
01810                      candidate->next = member->ourcandidates;
01811                      member->ourcandidates = candidate;
01812                   }
01813                }
01814 */
01815                var = var->next;
01816             }
01817             ASTOBJ_UNLOCK(member);
01818             clients = ast_aji_get_clients();
01819             if (clients) {
01820                ASTOBJ_CONTAINER_TRAVERSE(clients, 1, {
01821                   ASTOBJ_WRLOCK(iterator);
01822                   ASTOBJ_WRLOCK(member);
01823                   member->connection = NULL;
01824                   iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_NS, IKS_RULE_DONE);
01825                   iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_DTMF_NS, IKS_RULE_DONE);
01826                   ASTOBJ_UNLOCK(member);
01827                   ASTOBJ_UNLOCK(iterator);
01828                });
01829                ASTOBJ_CONTAINER_LINK(&jingle_list, member);
01830             } else {
01831                ASTOBJ_UNLOCK(member);
01832                ASTOBJ_UNREF(member, jingle_member_destroy);
01833             }
01834          } else {
01835             ASTOBJ_UNLOCK(member);
01836             if (jingle_create_member(cat, var, allowguest, prefs, context, member))
01837                ASTOBJ_CONTAINER_LINK(&jingle_list, member);
01838             ASTOBJ_UNREF(member, jingle_member_destroy);
01839          }
01840       }
01841       cat = ast_category_browse(cfg, cat);
01842    }
01843    jingle_free_candidates(global_candidates);
01844    return 1;
01845 }
01846 
01847 /*! \brief Load module into PBX, register channel */
01848 static int load_module(void)
01849 {
01850    char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
01851    free(jabber_loaded);
01852    if (!jabber_loaded) {
01853       /* Dependency module has a different name, if embedded */
01854       jabber_loaded = ast_module_helper("", "res_jabber", 0, 0, 0, 0);
01855       free(jabber_loaded);
01856       if (!jabber_loaded) {
01857          ast_log(LOG_ERROR, "chan_jingle.so depends upon res_jabber.so\n");
01858          return AST_MODULE_LOAD_DECLINE;
01859       }
01860    }
01861 
01862    ASTOBJ_CONTAINER_INIT(&jingle_list);
01863    if (!jingle_load_config()) {
01864       ast_log(LOG_ERROR, "Unable to read config file %s. Not loading module.\n", JINGLE_CONFIG);
01865       return AST_MODULE_LOAD_DECLINE;
01866    }
01867 
01868    sched = sched_context_create();
01869    if (!sched) 
01870       ast_log(LOG_WARNING, "Unable to create schedule context\n");
01871 
01872    io = io_context_create();
01873    if (!io) 
01874       ast_log(LOG_WARNING, "Unable to create I/O context\n");
01875 
01876    if (ast_find_ourip(&__ourip, bindaddr)) {
01877       ast_log(LOG_WARNING, "Unable to get own IP address, Jingle disabled\n");
01878       return 0;
01879    }
01880 
01881    ast_rtp_proto_register(&jingle_rtp);
01882    ast_cli_register_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
01883    /* Make sure we can register our channel type */
01884    if (ast_channel_register(&jingle_tech)) {
01885       ast_log(LOG_ERROR, "Unable to register channel class %s\n", channel_type);
01886       return -1;
01887    }
01888    return 0;
01889 }
01890 
01891 /*! \brief Reload module */
01892 static int reload(void)
01893 {
01894    return 0;
01895 }
01896 
01897 /*! \brief Unload the jingle channel from Asterisk */
01898 static int unload_module(void)
01899 {
01900    struct jingle_pvt *privates = NULL;
01901    ast_cli_unregister_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
01902    /* First, take us out of the channel loop */
01903    ast_channel_unregister(&jingle_tech);
01904    ast_rtp_proto_unregister(&jingle_rtp);
01905 
01906    if (!ast_mutex_lock(&jinglelock)) {
01907       /* Hangup all interfaces if they have an owner */
01908       ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
01909          ASTOBJ_WRLOCK(iterator);
01910          privates = iterator->p;
01911          while(privates) {
01912             if (privates->owner)
01913                ast_softhangup(privates->owner, AST_SOFTHANGUP_APPUNLOAD);
01914             privates = privates->next;
01915          }
01916          iterator->p = NULL;
01917          ASTOBJ_UNLOCK(iterator);
01918       });
01919       ast_mutex_unlock(&jinglelock);
01920    } else {
01921       ast_log(LOG_WARNING, "Unable to lock the monitor\n");
01922       return -1;
01923    }
01924    ASTOBJ_CONTAINER_DESTROYALL(&jingle_list, jingle_member_destroy);
01925    ASTOBJ_CONTAINER_DESTROY(&jingle_list);
01926    return 0;
01927 }
01928 
01929 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Jingle Channel Driver",
01930       .load = load_module,
01931       .unload = unload_module,
01932       .reload = reload,
01933           );

Generated on Fri Jul 24 00:40:48 2009 for Asterisk - the Open Source PBX by  doxygen 1.4.7