JABBER_RECEIVE (along with JabberSend) makes Asterisk interact with users over XMPP to process calls. SendText can be used instead of JabberSend in the context of XMPP based voice channels (chan_gtalk and chan_jingle). (closes issue #12569) Reported by: eech55 Tested by: phsultan, asannucci, lmadsen, jtodd, maxgo Review: https://reviewboard.asterisk.org/r/88/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@220457 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2141 lines
65 KiB
C
2141 lines
65 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Matt O'Gorman <mogorman@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \author Matt O'Gorman <mogorman@digium.com>
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*
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* \brief Gtalk Channel Driver, until google/libjingle works with jingle spec
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*
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* \ingroup channel_drivers
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*/
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/*** MODULEINFO
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<depend>iksemel</depend>
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<depend>res_jabber</depend>
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<use>openssl</use>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <sys/socket.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/signal.h>
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#include <iksemel.h>
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#include <pthread.h>
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#include <ctype.h>
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#include "asterisk/lock.h"
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#include "asterisk/channel.h"
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#include "asterisk/config.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/sched.h"
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#include "asterisk/io.h"
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#include "asterisk/rtp_engine.h"
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#include "asterisk/stun.h"
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#include "asterisk/acl.h"
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#include "asterisk/callerid.h"
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#include "asterisk/file.h"
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#include "asterisk/cli.h"
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#include "asterisk/app.h"
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#include "asterisk/musiconhold.h"
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#include "asterisk/manager.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/utils.h"
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#include "asterisk/causes.h"
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#include "asterisk/astobj.h"
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#include "asterisk/abstract_jb.h"
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#include "asterisk/jabber.h"
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#define GOOGLE_CONFIG "gtalk.conf"
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#define GOOGLE_NS "http://www.google.com/session"
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/*! Global jitterbuffer configuration - by default, jb is disabled */
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static struct ast_jb_conf default_jbconf =
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{
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.flags = 0,
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.max_size = -1,
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.resync_threshold = -1,
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.impl = ""
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};
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static struct ast_jb_conf global_jbconf;
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enum gtalk_protocol {
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AJI_PROTOCOL_UDP = 1,
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AJI_PROTOCOL_SSLTCP = 2,
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};
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enum gtalk_connect_type {
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AJI_CONNECT_STUN = 1,
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AJI_CONNECT_LOCAL = 2,
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AJI_CONNECT_RELAY = 3,
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};
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struct gtalk_pvt {
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ast_mutex_t lock; /*!< Channel private lock */
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time_t laststun;
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struct gtalk *parent; /*!< Parent client */
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char sid[100];
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char us[AJI_MAX_JIDLEN];
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char them[AJI_MAX_JIDLEN];
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char ring[10]; /*!< Message ID of ring */
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iksrule *ringrule; /*!< Rule for matching RING request */
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int initiator; /*!< If we're the initiator */
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int alreadygone;
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int capability;
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struct ast_codec_pref prefs;
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struct gtalk_candidate *theircandidates;
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struct gtalk_candidate *ourcandidates;
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char cid_num[80]; /*!< Caller ID num */
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char cid_name[80]; /*!< Caller ID name */
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char exten[80]; /*!< Called extension */
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struct ast_channel *owner; /*!< Master Channel */
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struct ast_rtp_instance *rtp; /*!< RTP audio session */
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struct ast_rtp_instance *vrtp; /*!< RTP video session */
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int jointcapability; /*!< Supported capability at both ends (codecs ) */
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int peercapability;
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struct gtalk_pvt *next; /* Next entity */
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};
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struct gtalk_candidate {
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char name[100];
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enum gtalk_protocol protocol;
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double preference;
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char username[100];
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char password[100];
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enum gtalk_connect_type type;
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char network[6];
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int generation;
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char ip[16];
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int port;
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int receipt;
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struct gtalk_candidate *next;
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};
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struct gtalk {
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ASTOBJ_COMPONENTS(struct gtalk);
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struct aji_client *connection;
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struct aji_buddy *buddy;
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struct gtalk_pvt *p;
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struct ast_codec_pref prefs;
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int amaflags; /*!< AMA Flags */
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char user[AJI_MAX_JIDLEN];
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char context[AST_MAX_CONTEXT];
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char parkinglot[AST_MAX_CONTEXT]; /*!< Parkinglot */
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char accountcode[AST_MAX_ACCOUNT_CODE]; /*!< Account code */
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int capability;
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ast_group_t callgroup; /*!< Call group */
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ast_group_t pickupgroup; /*!< Pickup group */
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int callingpres; /*!< Calling presentation */
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int allowguest;
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char language[MAX_LANGUAGE]; /*!< Default language for prompts */
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char musicclass[MAX_MUSICCLASS]; /*!< Music on Hold class */
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};
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struct gtalk_container {
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ASTOBJ_CONTAINER_COMPONENTS(struct gtalk);
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};
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static const char desc[] = "Gtalk Channel";
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static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263;
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AST_MUTEX_DEFINE_STATIC(gtalklock); /*!< Protect the interface list (of gtalk_pvt's) */
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/* Forward declarations */
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static struct ast_channel *gtalk_request(const char *type, int format, const struct ast_channel *requestor, void *data, int *cause);
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static int gtalk_digit(struct ast_channel *ast, char digit, unsigned int duration);
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static int gtalk_sendtext(struct ast_channel *ast, const char *text);
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static int gtalk_digit_begin(struct ast_channel *ast, char digit);
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static int gtalk_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
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static int gtalk_call(struct ast_channel *ast, char *dest, int timeout);
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static int gtalk_hangup(struct ast_channel *ast);
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static int gtalk_answer(struct ast_channel *ast);
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static int gtalk_action(struct gtalk *client, struct gtalk_pvt *p, const char *action);
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static void gtalk_free_pvt(struct gtalk *client, struct gtalk_pvt *p);
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static int gtalk_newcall(struct gtalk *client, ikspak *pak);
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static struct ast_frame *gtalk_read(struct ast_channel *ast);
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static int gtalk_write(struct ast_channel *ast, struct ast_frame *f);
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static int gtalk_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
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static int gtalk_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
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static int gtalk_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
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static struct gtalk_pvt *gtalk_alloc(struct gtalk *client, const char *us, const char *them, const char *sid);
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static char *gtalk_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
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static char *gtalk_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
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/*! \brief PBX interface structure for channel registration */
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static const struct ast_channel_tech gtalk_tech = {
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.type = "Gtalk",
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.description = "Gtalk Channel Driver",
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.capabilities = AST_FORMAT_AUDIO_MASK,
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.requester = gtalk_request,
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.send_text = gtalk_sendtext,
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.send_digit_begin = gtalk_digit_begin,
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.send_digit_end = gtalk_digit_end,
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.bridge = ast_rtp_instance_bridge,
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.call = gtalk_call,
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.hangup = gtalk_hangup,
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.answer = gtalk_answer,
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.read = gtalk_read,
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.write = gtalk_write,
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.exception = gtalk_read,
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.indicate = gtalk_indicate,
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.fixup = gtalk_fixup,
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.send_html = gtalk_sendhtml,
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.properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
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};
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static struct sockaddr_in bindaddr = { 0, }; /*!< The address we bind to */
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static struct sched_context *sched; /*!< The scheduling context */
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static struct io_context *io; /*!< The IO context */
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static struct in_addr __ourip;
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static struct ast_cli_entry gtalk_cli[] = {
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AST_CLI_DEFINE(gtalk_do_reload, "Reload GoogleTalk configuration"),
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AST_CLI_DEFINE(gtalk_show_channels, "Show GoogleTalk channels"),
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};
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static char externip[16];
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static struct gtalk_container gtalk_list;
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static void gtalk_member_destroy(struct gtalk *obj)
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{
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ast_free(obj);
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}
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static struct gtalk *find_gtalk(char *name, char *connection)
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{
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struct gtalk *gtalk = NULL;
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char *domain = NULL , *s = NULL;
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if (strchr(connection, '@')) {
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s = ast_strdupa(connection);
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domain = strsep(&s, "@");
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ast_verbose("OOOOH domain = %s\n", domain);
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}
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gtalk = ASTOBJ_CONTAINER_FIND(>alk_list, name);
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if (!gtalk && strchr(name, '@'))
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gtalk = ASTOBJ_CONTAINER_FIND_FULL(>alk_list, name, user,,, strcasecmp);
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if (!gtalk) {
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/* guest call */
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ASTOBJ_CONTAINER_TRAVERSE(>alk_list, 1, {
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ASTOBJ_RDLOCK(iterator);
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if (!strcasecmp(iterator->name, "guest")) {
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gtalk = iterator;
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}
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ASTOBJ_UNLOCK(iterator);
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if (gtalk)
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break;
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});
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}
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return gtalk;
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}
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static int add_codec_to_answer(const struct gtalk_pvt *p, int codec, iks *dcodecs)
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{
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int res = 0;
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char *format = ast_getformatname(codec);
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if (!strcasecmp("ulaw", format)) {
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iks *payload_eg711u, *payload_pcmu;
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payload_pcmu = iks_new("payload-type");
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payload_eg711u = iks_new("payload-type");
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if(!payload_eg711u || !payload_pcmu) {
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iks_delete(payload_pcmu);
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iks_delete(payload_eg711u);
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_pcmu, "id", "0");
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iks_insert_attrib(payload_pcmu, "name", "PCMU");
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iks_insert_attrib(payload_pcmu, "clockrate","8000");
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iks_insert_attrib(payload_pcmu, "bitrate","64000");
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iks_insert_attrib(payload_eg711u, "id", "100");
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iks_insert_attrib(payload_eg711u, "name", "EG711U");
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iks_insert_attrib(payload_eg711u, "clockrate","8000");
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iks_insert_attrib(payload_eg711u, "bitrate","64000");
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iks_insert_node(dcodecs, payload_pcmu);
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iks_insert_node(dcodecs, payload_eg711u);
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res ++;
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}
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if (!strcasecmp("alaw", format)) {
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iks *payload_eg711a, *payload_pcma;
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payload_pcma = iks_new("payload-type");
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payload_eg711a = iks_new("payload-type");
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if(!payload_eg711a || !payload_pcma) {
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iks_delete(payload_eg711a);
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iks_delete(payload_pcma);
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_pcma, "id", "8");
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iks_insert_attrib(payload_pcma, "name", "PCMA");
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iks_insert_attrib(payload_pcma, "clockrate","8000");
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iks_insert_attrib(payload_pcma, "bitrate","64000");
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payload_eg711a = iks_new("payload-type");
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iks_insert_attrib(payload_eg711a, "id", "101");
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iks_insert_attrib(payload_eg711a, "name", "EG711A");
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iks_insert_attrib(payload_eg711a, "clockrate","8000");
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iks_insert_attrib(payload_eg711a, "bitrate","64000");
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iks_insert_node(dcodecs, payload_pcma);
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iks_insert_node(dcodecs, payload_eg711a);
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res ++;
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}
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if (!strcasecmp("ilbc", format)) {
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iks *payload_ilbc = iks_new("payload-type");
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if(!payload_ilbc) {
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_ilbc, "id", "97");
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iks_insert_attrib(payload_ilbc, "name", "iLBC");
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iks_insert_attrib(payload_ilbc, "clockrate","8000");
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iks_insert_attrib(payload_ilbc, "bitrate","13300");
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iks_insert_node(dcodecs, payload_ilbc);
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res ++;
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}
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if (!strcasecmp("g723", format)) {
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iks *payload_g723 = iks_new("payload-type");
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if(!payload_g723) {
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_g723, "id", "4");
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iks_insert_attrib(payload_g723, "name", "G723");
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iks_insert_attrib(payload_g723, "clockrate","8000");
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iks_insert_attrib(payload_g723, "bitrate","6300");
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iks_insert_node(dcodecs, payload_g723);
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res ++;
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}
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if (!strcasecmp("speex", format)) {
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iks *payload_speex = iks_new("payload-type");
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if(!payload_speex) {
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_speex, "id", "110");
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iks_insert_attrib(payload_speex, "name", "speex");
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iks_insert_attrib(payload_speex, "clockrate","8000");
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iks_insert_attrib(payload_speex, "bitrate","11000");
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iks_insert_node(dcodecs, payload_speex);
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res++;
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}
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if (!strcasecmp("gsm", format)) {
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iks *payload_gsm = iks_new("payload-type");
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if(!payload_gsm) {
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ast_log(LOG_WARNING,"Failed to allocate iks node");
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return -1;
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}
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iks_insert_attrib(payload_gsm, "id", "103");
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iks_insert_attrib(payload_gsm, "name", "gsm");
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iks_insert_node(dcodecs, payload_gsm);
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res++;
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}
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return res;
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}
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static int gtalk_invite(struct gtalk_pvt *p, char *to, char *from, char *sid, int initiator)
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{
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struct gtalk *client = p->parent;
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iks *iq, *gtalk, *dcodecs, *payload_telephone, *transport;
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int x;
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int pref_codec = 0;
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int alreadysent = 0;
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int codecs_num = 0;
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char *lowerto = NULL;
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iq = iks_new("iq");
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gtalk = iks_new("session");
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dcodecs = iks_new("description");
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transport = iks_new("transport");
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payload_telephone = iks_new("payload-type");
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if (!(iq && gtalk && dcodecs && transport && payload_telephone)){
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iks_delete(iq);
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iks_delete(gtalk);
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iks_delete(dcodecs);
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iks_delete(transport);
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iks_delete(payload_telephone);
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ast_log(LOG_ERROR, "Could not allocate iksemel nodes\n");
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return 0;
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}
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iks_insert_attrib(dcodecs, "xmlns", "http://www.google.com/session/phone");
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iks_insert_attrib(dcodecs, "xml:lang", "en");
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for (x = 0; x < 32; x++) {
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if (!(pref_codec = ast_codec_pref_index(&client->prefs, x)))
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break;
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if (!(client->capability & pref_codec))
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continue;
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if (alreadysent & pref_codec)
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continue;
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codecs_num = add_codec_to_answer(p, pref_codec, dcodecs);
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alreadysent |= pref_codec;
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}
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if (codecs_num) {
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/* only propose DTMF within an audio session */
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iks_insert_attrib(payload_telephone, "id", "106");
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iks_insert_attrib(payload_telephone, "name", "telephone-event");
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iks_insert_attrib(payload_telephone, "clockrate", "8000");
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}
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iks_insert_attrib(transport,"xmlns","http://www.google.com/transport/p2p");
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iks_insert_attrib(iq, "type", "set");
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iks_insert_attrib(iq, "to", to);
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iks_insert_attrib(iq, "from", from);
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iks_insert_attrib(iq, "id", client->connection->mid);
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ast_aji_increment_mid(client->connection->mid);
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iks_insert_attrib(gtalk, "xmlns", "http://www.google.com/session");
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iks_insert_attrib(gtalk, "type",initiator ? "initiate": "accept");
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/* put the initiator attribute to lower case if we receive the call
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* otherwise GoogleTalk won't establish the session */
|
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if (!initiator) {
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char c;
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char *t = lowerto = ast_strdupa(to);
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while (((c = *t) != '/') && (*t++ = tolower(c)));
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}
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iks_insert_attrib(gtalk, "initiator", initiator ? from : lowerto);
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iks_insert_attrib(gtalk, "id", sid);
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iks_insert_node(iq, gtalk);
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iks_insert_node(gtalk, dcodecs);
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iks_insert_node(gtalk, transport);
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iks_insert_node(dcodecs, payload_telephone);
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|
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ast_aji_send(client->connection, iq);
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|
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iks_delete(payload_telephone);
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iks_delete(transport);
|
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iks_delete(dcodecs);
|
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iks_delete(gtalk);
|
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iks_delete(iq);
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return 1;
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}
|
|
|
|
static int gtalk_invite_response(struct gtalk_pvt *p, char *to , char *from, char *sid, int initiator)
|
|
{
|
|
iks *iq, *session, *transport;
|
|
char *lowerto = NULL;
|
|
|
|
iq = iks_new("iq");
|
|
session = iks_new("session");
|
|
transport = iks_new("transport");
|
|
if(!(iq && session && transport)) {
|
|
iks_delete(iq);
|
|
iks_delete(session);
|
|
iks_delete(transport);
|
|
ast_log(LOG_ERROR, " Unable to allocate IKS node\n");
|
|
return -1;
|
|
}
|
|
iks_insert_attrib(iq, "from", from);
|
|
iks_insert_attrib(iq, "to", to);
|
|
iks_insert_attrib(iq, "type", "set");
|
|
iks_insert_attrib(iq, "id",p->parent->connection->mid);
|
|
ast_aji_increment_mid(p->parent->connection->mid);
|
|
iks_insert_attrib(session, "type", "transport-accept");
|
|
iks_insert_attrib(session, "id", sid);
|
|
/* put the initiator attribute to lower case if we receive the call
|
|
* otherwise GoogleTalk won't establish the session */
|
|
if (!initiator) {
|
|
char c;
|
|
char *t = lowerto = ast_strdupa(to);
|
|
while (((c = *t) != '/') && (*t++ = tolower(c)));
|
|
}
|
|
iks_insert_attrib(session, "initiator", initiator ? from : lowerto);
|
|
iks_insert_attrib(session, "xmlns", "http://www.google.com/session");
|
|
iks_insert_attrib(transport, "xmlns", "http://www.google.com/transport/p2p");
|
|
iks_insert_node(iq,session);
|
|
iks_insert_node(session,transport);
|
|
ast_aji_send(p->parent->connection, iq);
|
|
|
|
iks_delete(transport);
|
|
iks_delete(session);
|
|
iks_delete(iq);
|
|
return 1;
|
|
|
|
}
|
|
|
|
static int gtalk_ringing_ack(void *data, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *p = data;
|
|
|
|
if (p->ringrule)
|
|
iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
|
|
p->ringrule = NULL;
|
|
if (p->owner)
|
|
ast_queue_control(p->owner, AST_CONTROL_RINGING);
|
|
return IKS_FILTER_EAT;
|
|
}
|
|
|
|
static int gtalk_answer(struct ast_channel *ast)
|
|
{
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
int res = 0;
|
|
|
|
ast_debug(1, "Answer!\n");
|
|
ast_mutex_lock(&p->lock);
|
|
gtalk_invite(p, p->them, p->us,p->sid, 0);
|
|
manager_event(EVENT_FLAG_SYSTEM, "ChannelUpdate", "Channel: %s\r\nChanneltype: %s\r\nGtalk-SID: %s\r\n",
|
|
ast->name, "GTALK", p->sid);
|
|
ast_mutex_unlock(&p->lock);
|
|
return res;
|
|
}
|
|
|
|
static enum ast_rtp_glue_result gtalk_get_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance **instance)
|
|
{
|
|
struct gtalk_pvt *p = chan->tech_pvt;
|
|
enum ast_rtp_glue_result res = AST_RTP_GLUE_RESULT_FORBID;
|
|
|
|
if (!p)
|
|
return res;
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
if (p->rtp){
|
|
ao2_ref(p->rtp, +1);
|
|
*instance = p->rtp;
|
|
res = AST_RTP_GLUE_RESULT_LOCAL;
|
|
}
|
|
ast_mutex_unlock(&p->lock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int gtalk_get_codec(struct ast_channel *chan)
|
|
{
|
|
struct gtalk_pvt *p = chan->tech_pvt;
|
|
return p->peercapability;
|
|
}
|
|
|
|
static int gtalk_set_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance *rtp, struct ast_rtp_instance *vrtp, struct ast_rtp_instance *trtp, int codecs, int nat_active)
|
|
{
|
|
struct gtalk_pvt *p;
|
|
|
|
p = chan->tech_pvt;
|
|
if (!p)
|
|
return -1;
|
|
ast_mutex_lock(&p->lock);
|
|
|
|
/* if (rtp)
|
|
ast_rtp_get_peer(rtp, &p->redirip);
|
|
else
|
|
memset(&p->redirip, 0, sizeof(p->redirip));
|
|
p->redircodecs = codecs; */
|
|
|
|
/* Reset lastrtprx timer */
|
|
ast_mutex_unlock(&p->lock);
|
|
return 0;
|
|
}
|
|
|
|
static struct ast_rtp_glue gtalk_rtp_glue = {
|
|
.type = "Gtalk",
|
|
.get_rtp_info = gtalk_get_rtp_peer,
|
|
.get_codec = gtalk_get_codec,
|
|
.update_peer = gtalk_set_rtp_peer,
|
|
};
|
|
|
|
static int gtalk_response(struct gtalk *client, char *from, ikspak *pak, const char *reasonstr, const char *reasonstr2)
|
|
{
|
|
iks *response = NULL, *error = NULL, *reason = NULL;
|
|
int res = -1;
|
|
|
|
response = iks_new("iq");
|
|
if (response) {
|
|
iks_insert_attrib(response, "type", "result");
|
|
iks_insert_attrib(response, "from", from);
|
|
iks_insert_attrib(response, "to", iks_find_attrib(pak->x, "from"));
|
|
iks_insert_attrib(response, "id", iks_find_attrib(pak->x, "id"));
|
|
if (reasonstr) {
|
|
error = iks_new("error");
|
|
if (error) {
|
|
iks_insert_attrib(error, "type", "cancel");
|
|
reason = iks_new(reasonstr);
|
|
if (reason)
|
|
iks_insert_node(error, reason);
|
|
iks_insert_node(response, error);
|
|
}
|
|
}
|
|
ast_aji_send(client->connection, response);
|
|
res = 0;
|
|
}
|
|
|
|
iks_delete(reason);
|
|
iks_delete(error);
|
|
iks_delete(response);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int gtalk_is_answered(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *tmp;
|
|
char *from;
|
|
iks *codec;
|
|
char s1[BUFSIZ], s2[BUFSIZ], s3[BUFSIZ];
|
|
int peernoncodeccapability;
|
|
|
|
ast_log(LOG_DEBUG, "The client is %s\n", client->name);
|
|
/* Make sure our new call doesn't exist yet */
|
|
for (tmp = client->p; tmp; tmp = tmp->next) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid))
|
|
break;
|
|
}
|
|
|
|
/* codec points to the first <payload-type/> tag */
|
|
codec = iks_first_tag(iks_first_tag(iks_first_tag(pak->x)));
|
|
while (codec) {
|
|
ast_rtp_codecs_payloads_set_m_type(ast_rtp_instance_get_codecs(tmp->rtp), tmp->rtp, atoi(iks_find_attrib(codec, "id")));
|
|
ast_rtp_codecs_payloads_set_rtpmap_type(ast_rtp_instance_get_codecs(tmp->rtp), tmp->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
|
|
codec = iks_next_tag(codec);
|
|
}
|
|
|
|
/* Now gather all of the codecs that we are asked for */
|
|
ast_rtp_codecs_payload_formats(ast_rtp_instance_get_codecs(tmp->rtp), &tmp->peercapability, &peernoncodeccapability);
|
|
|
|
/* at this point, we received an awser from the remote Gtalk client,
|
|
which allows us to compare capabilities */
|
|
tmp->jointcapability = tmp->capability & tmp->peercapability;
|
|
if (!tmp->jointcapability) {
|
|
ast_log(LOG_WARNING, "Capabilities don't match : us - %s, peer - %s, combined - %s \n", ast_getformatname_multiple(s1, BUFSIZ, tmp->capability),
|
|
ast_getformatname_multiple(s2, BUFSIZ, tmp->peercapability),
|
|
ast_getformatname_multiple(s3, BUFSIZ, tmp->jointcapability));
|
|
/* close session if capabilities don't match */
|
|
ast_queue_hangup(tmp->owner);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
from = iks_find_attrib(pak->x, "to");
|
|
if(!from)
|
|
from = client->connection->jid->full;
|
|
|
|
if (tmp) {
|
|
if (tmp->owner)
|
|
ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
|
|
} else
|
|
ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_is_accepted(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *tmp;
|
|
char *from;
|
|
|
|
ast_log(LOG_DEBUG, "The client is %s\n", client->name);
|
|
/* find corresponding call */
|
|
for (tmp = client->p; tmp; tmp = tmp->next) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid))
|
|
break;
|
|
}
|
|
|
|
from = iks_find_attrib(pak->x, "to");
|
|
if(!from)
|
|
from = client->connection->jid->full;
|
|
|
|
if (!tmp)
|
|
ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
|
|
|
|
/* answer 'iq' packet to let the remote peer know that we're alive */
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_handle_dtmf(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *tmp;
|
|
iks *dtmfnode = NULL, *dtmfchild = NULL;
|
|
char *dtmf;
|
|
char *from;
|
|
/* Make sure our new call doesn't exist yet */
|
|
for (tmp = client->p; tmp; tmp = tmp->next) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid) || iks_find_with_attrib(pak->x, "gtalk", "sid", tmp->sid))
|
|
break;
|
|
}
|
|
from = iks_find_attrib(pak->x, "to");
|
|
if(!from)
|
|
from = client->connection->jid->full;
|
|
|
|
|
|
if (tmp) {
|
|
if(iks_find_with_attrib(pak->x, "dtmf-method", "method", "rtp")) {
|
|
gtalk_response(client, from, pak,
|
|
"feature-not-implemented xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'",
|
|
"unsupported-dtmf-method xmlns='http://jabber.org/protocol/gtalk/info/dtmf#errors'");
|
|
return -1;
|
|
}
|
|
if ((dtmfnode = iks_find(pak->x, "dtmf"))) {
|
|
if((dtmf = iks_find_attrib(dtmfnode, "code"))) {
|
|
if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-up")) {
|
|
struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
|
|
f.subclass = dtmf[0];
|
|
ast_queue_frame(tmp->owner, &f);
|
|
ast_verbose("GOOGLE! DTMF-relay event received: %c\n", f.subclass);
|
|
} else if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-down")) {
|
|
struct ast_frame f = {AST_FRAME_DTMF_END, };
|
|
f.subclass = dtmf[0];
|
|
ast_queue_frame(tmp->owner, &f);
|
|
ast_verbose("GOOGLE! DTMF-relay event received: %c\n", f.subclass);
|
|
} else if(iks_find_attrib(pak->x, "dtmf")) { /* 250 millasecond default */
|
|
struct ast_frame f = {AST_FRAME_DTMF, };
|
|
f.subclass = dtmf[0];
|
|
ast_queue_frame(tmp->owner, &f);
|
|
ast_verbose("GOOGLE! DTMF-relay event received: %c\n", f.subclass);
|
|
}
|
|
}
|
|
} else if ((dtmfnode = iks_find_with_attrib(pak->x, "gtalk", "action", "session-info"))) {
|
|
if((dtmfchild = iks_find(dtmfnode, "dtmf"))) {
|
|
if((dtmf = iks_find_attrib(dtmfchild, "code"))) {
|
|
if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-up")) {
|
|
struct ast_frame f = {AST_FRAME_DTMF_END, };
|
|
f.subclass = dtmf[0];
|
|
ast_queue_frame(tmp->owner, &f);
|
|
ast_verbose("GOOGLE! DTMF-relay event received: %c\n", f.subclass);
|
|
} else if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-down")) {
|
|
struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
|
|
f.subclass = dtmf[0];
|
|
ast_queue_frame(tmp->owner, &f);
|
|
ast_verbose("GOOGLE! DTMF-relay event received: %c\n", f.subclass);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
return 1;
|
|
} else
|
|
ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
|
|
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_hangup_farend(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *tmp;
|
|
char *from;
|
|
|
|
ast_debug(1, "The client is %s\n", client->name);
|
|
/* Make sure our new call doesn't exist yet */
|
|
for (tmp = client->p; tmp; tmp = tmp->next) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid))
|
|
break;
|
|
}
|
|
from = iks_find_attrib(pak->x, "to");
|
|
if(!from)
|
|
from = client->connection->jid->full;
|
|
|
|
if (tmp) {
|
|
tmp->alreadygone = 1;
|
|
if (tmp->owner)
|
|
ast_queue_hangup(tmp->owner);
|
|
} else
|
|
ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_create_candidates(struct gtalk *client, struct gtalk_pvt *p, char *sid, char *from, char *to)
|
|
{
|
|
struct gtalk_candidate *tmp;
|
|
struct aji_client *c = client->connection;
|
|
struct gtalk_candidate *ours1 = NULL, *ours2 = NULL;
|
|
struct sockaddr_in sin = { 0, };
|
|
struct sockaddr_in dest;
|
|
struct in_addr us;
|
|
iks *iq, *gtalk, *candidate, *transport;
|
|
char user[17], pass[17], preference[5], port[7];
|
|
char *lowerfrom = NULL;
|
|
|
|
|
|
iq = iks_new("iq");
|
|
gtalk = iks_new("session");
|
|
candidate = iks_new("candidate");
|
|
transport = iks_new("transport");
|
|
if (!iq || !gtalk || !candidate || !transport) {
|
|
ast_log(LOG_ERROR, "Memory allocation error\n");
|
|
goto safeout;
|
|
}
|
|
ours1 = ast_calloc(1, sizeof(*ours1));
|
|
ours2 = ast_calloc(1, sizeof(*ours2));
|
|
if (!ours1 || !ours2)
|
|
goto safeout;
|
|
|
|
iks_insert_attrib(transport, "xmlns","http://www.google.com/transport/p2p");
|
|
iks_insert_node(iq, gtalk);
|
|
iks_insert_node(gtalk,transport);
|
|
iks_insert_node(transport, candidate);
|
|
|
|
for (; p; p = p->next) {
|
|
if (!strcasecmp(p->sid, sid))
|
|
break;
|
|
}
|
|
|
|
if (!p) {
|
|
ast_log(LOG_NOTICE, "No matching gtalk session - SID %s!\n", sid);
|
|
goto safeout;
|
|
}
|
|
|
|
ast_rtp_instance_get_local_address(p->rtp, &sin);
|
|
ast_find_ourip(&us, bindaddr);
|
|
if (!strcmp(ast_inet_ntoa(us), "127.0.0.1")) {
|
|
ast_log(LOG_WARNING, "Found a loopback IP on the system, check your network configuration or set the bindaddr attribute.");
|
|
}
|
|
|
|
/* Setup our gtalk candidates */
|
|
ast_copy_string(ours1->name, "rtp", sizeof(ours1->name));
|
|
ours1->port = ntohs(sin.sin_port);
|
|
ours1->preference = 1;
|
|
snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
|
|
snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
|
|
ast_copy_string(ours1->username, user, sizeof(ours1->username));
|
|
ast_copy_string(ours1->password, pass, sizeof(ours1->password));
|
|
ast_copy_string(ours1->ip, ast_inet_ntoa(us), sizeof(ours1->ip));
|
|
ours1->protocol = AJI_PROTOCOL_UDP;
|
|
ours1->type = AJI_CONNECT_LOCAL;
|
|
ours1->generation = 0;
|
|
p->ourcandidates = ours1;
|
|
|
|
if (!ast_strlen_zero(externip)) {
|
|
/* XXX We should really stun for this one not just go with externip XXX */
|
|
snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
|
|
snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
|
|
ast_copy_string(ours2->username, user, sizeof(ours2->username));
|
|
ast_copy_string(ours2->password, pass, sizeof(ours2->password));
|
|
ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
|
|
ast_copy_string(ours2->name, "rtp", sizeof(ours1->name));
|
|
ours2->port = ntohs(sin.sin_port);
|
|
ours2->preference = 0.9;
|
|
ours2->protocol = AJI_PROTOCOL_UDP;
|
|
ours2->type = AJI_CONNECT_STUN;
|
|
ours2->generation = 0;
|
|
ours1->next = ours2;
|
|
ours2 = NULL;
|
|
}
|
|
ours1 = NULL;
|
|
dest.sin_addr = __ourip;
|
|
dest.sin_port = sin.sin_port;
|
|
|
|
|
|
for (tmp = p->ourcandidates; tmp; tmp = tmp->next) {
|
|
snprintf(port, sizeof(port), "%d", tmp->port);
|
|
snprintf(preference, sizeof(preference), "%.2f", tmp->preference);
|
|
iks_insert_attrib(iq, "from", to);
|
|
iks_insert_attrib(iq, "to", from);
|
|
iks_insert_attrib(iq, "type", "set");
|
|
iks_insert_attrib(iq, "id", c->mid);
|
|
ast_aji_increment_mid(c->mid);
|
|
iks_insert_attrib(gtalk, "type", "transport-info");
|
|
iks_insert_attrib(gtalk, "id", sid);
|
|
/* put the initiator attribute to lower case if we receive the call
|
|
* otherwise GoogleTalk won't establish the session */
|
|
if (!p->initiator) {
|
|
char c;
|
|
char *t = lowerfrom = ast_strdupa(from);
|
|
while (((c = *t) != '/') && (*t++ = tolower(c)));
|
|
}
|
|
iks_insert_attrib(gtalk, "initiator", (p->initiator) ? to : lowerfrom);
|
|
iks_insert_attrib(gtalk, "xmlns", GOOGLE_NS);
|
|
iks_insert_attrib(candidate, "name", tmp->name);
|
|
iks_insert_attrib(candidate, "address", tmp->ip);
|
|
iks_insert_attrib(candidate, "port", port);
|
|
iks_insert_attrib(candidate, "username", tmp->username);
|
|
iks_insert_attrib(candidate, "password", tmp->password);
|
|
iks_insert_attrib(candidate, "preference", preference);
|
|
if (tmp->protocol == AJI_PROTOCOL_UDP)
|
|
iks_insert_attrib(candidate, "protocol", "udp");
|
|
if (tmp->protocol == AJI_PROTOCOL_SSLTCP)
|
|
iks_insert_attrib(candidate, "protocol", "ssltcp");
|
|
if (tmp->type == AJI_CONNECT_STUN)
|
|
iks_insert_attrib(candidate, "type", "stun");
|
|
if (tmp->type == AJI_CONNECT_LOCAL)
|
|
iks_insert_attrib(candidate, "type", "local");
|
|
if (tmp->type == AJI_CONNECT_RELAY)
|
|
iks_insert_attrib(candidate, "type", "relay");
|
|
iks_insert_attrib(candidate, "network", "0");
|
|
iks_insert_attrib(candidate, "generation", "0");
|
|
ast_aji_send(c, iq);
|
|
}
|
|
p->laststun = 0;
|
|
|
|
safeout:
|
|
if (ours1)
|
|
ast_free(ours1);
|
|
if (ours2)
|
|
ast_free(ours2);
|
|
iks_delete(iq);
|
|
iks_delete(gtalk);
|
|
iks_delete(candidate);
|
|
iks_delete(transport);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct gtalk_pvt *gtalk_alloc(struct gtalk *client, const char *us, const char *them, const char *sid)
|
|
{
|
|
struct gtalk_pvt *tmp = NULL;
|
|
struct aji_resource *resources = NULL;
|
|
struct aji_buddy *buddy;
|
|
char idroster[200];
|
|
char *data, *exten = NULL;
|
|
|
|
ast_debug(1, "The client is %s for alloc\n", client->name);
|
|
if (!sid && !strchr(them, '/')) { /* I started call! */
|
|
if (!strcasecmp(client->name, "guest")) {
|
|
buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, them);
|
|
if (buddy)
|
|
resources = buddy->resources;
|
|
} else if (client->buddy)
|
|
resources = client->buddy->resources;
|
|
while (resources) {
|
|
if (resources->cap->jingle) {
|
|
break;
|
|
}
|
|
resources = resources->next;
|
|
}
|
|
if (resources)
|
|
snprintf(idroster, sizeof(idroster), "%s/%s", them, resources->resource);
|
|
else {
|
|
ast_log(LOG_ERROR, "no gtalk capable clients to talk to.\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
|
|
return NULL;
|
|
}
|
|
|
|
memcpy(&tmp->prefs, &client->prefs, sizeof(struct ast_codec_pref));
|
|
|
|
if (sid) {
|
|
ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
|
|
ast_copy_string(tmp->them, them, sizeof(tmp->them));
|
|
ast_copy_string(tmp->us, us, sizeof(tmp->us));
|
|
} else {
|
|
snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
|
|
ast_copy_string(tmp->them, idroster, sizeof(tmp->them));
|
|
ast_copy_string(tmp->us, us, sizeof(tmp->us));
|
|
tmp->initiator = 1;
|
|
}
|
|
/* clear codecs */
|
|
if (!(tmp->rtp = ast_rtp_instance_new("asterisk", sched, &bindaddr, NULL))) {
|
|
ast_log(LOG_ERROR, "Failed to create a new RTP instance (possibly an invalid bindaddr?)\n");
|
|
ast_free(tmp);
|
|
return NULL;
|
|
}
|
|
ast_rtp_instance_set_prop(tmp->rtp, AST_RTP_PROPERTY_RTCP, 1);
|
|
ast_rtp_codecs_payloads_clear(ast_rtp_instance_get_codecs(tmp->rtp), tmp->rtp);
|
|
|
|
/* add user configured codec capabilites */
|
|
if (client->capability)
|
|
tmp->capability = client->capability;
|
|
else if (global_capability)
|
|
tmp->capability = global_capability;
|
|
|
|
tmp->parent = client;
|
|
if (!tmp->rtp) {
|
|
ast_log(LOG_WARNING, "Out of RTP sessions?\n");
|
|
ast_free(tmp);
|
|
return NULL;
|
|
}
|
|
|
|
/* Set CALLERID(name) to the full JID of the remote peer */
|
|
ast_copy_string(tmp->cid_name, tmp->them, sizeof(tmp->cid_name));
|
|
|
|
if(strchr(tmp->us, '/')) {
|
|
data = ast_strdupa(tmp->us);
|
|
exten = strsep(&data, "/");
|
|
} else
|
|
exten = tmp->us;
|
|
ast_copy_string(tmp->exten, exten, sizeof(tmp->exten));
|
|
ast_mutex_init(&tmp->lock);
|
|
ast_mutex_lock(>alklock);
|
|
tmp->next = client->p;
|
|
client->p = tmp;
|
|
ast_mutex_unlock(>alklock);
|
|
return tmp;
|
|
}
|
|
|
|
/*! \brief Start new gtalk channel */
|
|
static struct ast_channel *gtalk_new(struct gtalk *client, struct gtalk_pvt *i, int state, const char *title, const char *linkedid)
|
|
{
|
|
struct ast_channel *tmp;
|
|
int fmt;
|
|
int what;
|
|
const char *n2;
|
|
|
|
if (title)
|
|
n2 = title;
|
|
else
|
|
n2 = i->us;
|
|
tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, linkedid, client->accountcode, i->exten, client->context, client->amaflags, "Gtalk/%s-%04lx", n2, ast_random() & 0xffff);
|
|
if (!tmp) {
|
|
ast_log(LOG_WARNING, "Unable to allocate Gtalk channel structure!\n");
|
|
return NULL;
|
|
}
|
|
tmp->tech = >alk_tech;
|
|
|
|
/* Select our native format based on codec preference until we receive
|
|
something from another device to the contrary. */
|
|
if (i->jointcapability)
|
|
what = i->jointcapability;
|
|
else if (i->capability)
|
|
what = i->capability;
|
|
else
|
|
what = global_capability;
|
|
|
|
/* Set Frame packetization */
|
|
if (i->rtp)
|
|
ast_rtp_codecs_packetization_set(ast_rtp_instance_get_codecs(i->rtp), i->rtp, &i->prefs);
|
|
|
|
tmp->nativeformats = ast_codec_choose(&i->prefs, what, 1) | (i->jointcapability & AST_FORMAT_VIDEO_MASK);
|
|
fmt = ast_best_codec(tmp->nativeformats);
|
|
|
|
if (i->rtp) {
|
|
ast_rtp_instance_set_prop(i->rtp, AST_RTP_PROPERTY_STUN, 1);
|
|
ast_channel_set_fd(tmp, 0, ast_rtp_instance_fd(i->rtp, 0));
|
|
ast_channel_set_fd(tmp, 1, ast_rtp_instance_fd(i->rtp, 1));
|
|
}
|
|
if (i->vrtp) {
|
|
ast_rtp_instance_set_prop(i->vrtp, AST_RTP_PROPERTY_STUN, 1);
|
|
ast_channel_set_fd(tmp, 2, ast_rtp_instance_fd(i->vrtp, 0));
|
|
ast_channel_set_fd(tmp, 3, ast_rtp_instance_fd(i->vrtp, 1));
|
|
}
|
|
if (state == AST_STATE_RING)
|
|
tmp->rings = 1;
|
|
tmp->adsicpe = AST_ADSI_UNAVAILABLE;
|
|
tmp->writeformat = fmt;
|
|
tmp->rawwriteformat = fmt;
|
|
tmp->readformat = fmt;
|
|
tmp->rawreadformat = fmt;
|
|
tmp->tech_pvt = i;
|
|
|
|
tmp->callgroup = client->callgroup;
|
|
tmp->pickupgroup = client->pickupgroup;
|
|
tmp->cid.cid_pres = client->callingpres;
|
|
if (!ast_strlen_zero(client->accountcode))
|
|
ast_string_field_set(tmp, accountcode, client->accountcode);
|
|
if (client->amaflags)
|
|
tmp->amaflags = client->amaflags;
|
|
if (!ast_strlen_zero(client->language))
|
|
ast_string_field_set(tmp, language, client->language);
|
|
if (!ast_strlen_zero(client->musicclass))
|
|
ast_string_field_set(tmp, musicclass, client->musicclass);
|
|
if (!ast_strlen_zero(client->parkinglot))
|
|
ast_string_field_set(tmp, parkinglot, client->parkinglot);
|
|
i->owner = tmp;
|
|
ast_module_ref(ast_module_info->self);
|
|
ast_copy_string(tmp->context, client->context, sizeof(tmp->context));
|
|
ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten));
|
|
|
|
if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s"))
|
|
tmp->cid.cid_dnid = ast_strdup(i->exten);
|
|
tmp->priority = 1;
|
|
if (i->rtp)
|
|
ast_jb_configure(tmp, &global_jbconf);
|
|
if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
|
|
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
|
|
tmp->hangupcause = AST_CAUSE_SWITCH_CONGESTION;
|
|
ast_hangup(tmp);
|
|
tmp = NULL;
|
|
} else {
|
|
manager_event(EVENT_FLAG_SYSTEM, "ChannelUpdate",
|
|
"Channel: %s\r\nChanneltype: %s\r\nGtalk-SID: %s\r\n",
|
|
i->owner ? i->owner->name : "", "Gtalk", i->sid);
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
static int gtalk_action(struct gtalk *client, struct gtalk_pvt *p, const char *action)
|
|
{
|
|
iks *request, *session = NULL;
|
|
int res = -1;
|
|
char *lowerthem = NULL;
|
|
|
|
request = iks_new("iq");
|
|
if (request) {
|
|
iks_insert_attrib(request, "type", "set");
|
|
iks_insert_attrib(request, "from", p->us);
|
|
iks_insert_attrib(request, "to", p->them);
|
|
iks_insert_attrib(request, "id", client->connection->mid);
|
|
ast_aji_increment_mid(client->connection->mid);
|
|
session = iks_new("session");
|
|
if (session) {
|
|
iks_insert_attrib(session, "type", action);
|
|
iks_insert_attrib(session, "id", p->sid);
|
|
/* put the initiator attribute to lower case if we receive the call
|
|
* otherwise GoogleTalk won't establish the session */
|
|
if (!p->initiator) {
|
|
char c;
|
|
char *t = lowerthem = ast_strdupa(p->them);
|
|
while (((c = *t) != '/') && (*t++ = tolower(c)));
|
|
}
|
|
iks_insert_attrib(session, "initiator", p->initiator ? p->us : lowerthem);
|
|
iks_insert_attrib(session, "xmlns", "http://www.google.com/session");
|
|
iks_insert_node(request, session);
|
|
ast_aji_send(client->connection, request);
|
|
res = 0;
|
|
}
|
|
}
|
|
|
|
iks_delete(session);
|
|
iks_delete(request);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void gtalk_free_candidates(struct gtalk_candidate *candidate)
|
|
{
|
|
struct gtalk_candidate *last;
|
|
while (candidate) {
|
|
last = candidate;
|
|
candidate = candidate->next;
|
|
ast_free(last);
|
|
}
|
|
}
|
|
|
|
static void gtalk_free_pvt(struct gtalk *client, struct gtalk_pvt *p)
|
|
{
|
|
struct gtalk_pvt *cur, *prev = NULL;
|
|
cur = client->p;
|
|
while (cur) {
|
|
if (cur == p) {
|
|
if (prev)
|
|
prev->next = p->next;
|
|
else
|
|
client->p = p->next;
|
|
break;
|
|
}
|
|
prev = cur;
|
|
cur = cur->next;
|
|
}
|
|
if (p->ringrule)
|
|
iks_filter_remove_rule(p->parent->connection->f, p->ringrule);
|
|
if (p->owner)
|
|
ast_log(LOG_WARNING, "Uh oh, there's an owner, this is going to be messy.\n");
|
|
if (p->rtp)
|
|
ast_rtp_instance_destroy(p->rtp);
|
|
if (p->vrtp)
|
|
ast_rtp_instance_destroy(p->vrtp);
|
|
gtalk_free_candidates(p->theircandidates);
|
|
ast_free(p);
|
|
}
|
|
|
|
|
|
static int gtalk_newcall(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *p, *tmp = client->p;
|
|
struct ast_channel *chan;
|
|
int res;
|
|
iks *codec;
|
|
char *from = NULL;
|
|
char s1[BUFSIZ], s2[BUFSIZ], s3[BUFSIZ];
|
|
int peernoncodeccapability;
|
|
|
|
/* Make sure our new call doesn't exist yet */
|
|
from = iks_find_attrib(pak->x,"to");
|
|
if(!from)
|
|
from = client->connection->jid->full;
|
|
|
|
while (tmp) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid)) {
|
|
ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
|
|
gtalk_response(client, from, pak, "out-of-order", NULL);
|
|
return -1;
|
|
}
|
|
tmp = tmp->next;
|
|
}
|
|
|
|
if (!strcasecmp(client->name, "guest")){
|
|
/* the guest account is not tied to any configured XMPP client,
|
|
let's set it now */
|
|
client->connection = ast_aji_get_client(from);
|
|
if (!client->connection) {
|
|
ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", from);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
p = gtalk_alloc(client, from, pak->from->full, iks_find_attrib(pak->query, "id"));
|
|
if (!p) {
|
|
ast_log(LOG_WARNING, "Unable to allocate gtalk structure!\n");
|
|
return -1;
|
|
}
|
|
|
|
chan = gtalk_new(client, p, AST_STATE_DOWN, pak->from->user, NULL);
|
|
if (!chan) {
|
|
gtalk_free_pvt(client, p);
|
|
return -1;
|
|
}
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
ast_copy_string(p->them, pak->from->full, sizeof(p->them));
|
|
if (iks_find_attrib(pak->query, "id")) {
|
|
ast_copy_string(p->sid, iks_find_attrib(pak->query, "id"),
|
|
sizeof(p->sid));
|
|
}
|
|
|
|
/* codec points to the first <payload-type/> tag */
|
|
codec = iks_first_tag(iks_first_tag(iks_first_tag(pak->x)));
|
|
|
|
while (codec) {
|
|
ast_rtp_codecs_payloads_set_m_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")));
|
|
ast_rtp_codecs_payloads_set_rtpmap_type(ast_rtp_instance_get_codecs(p->rtp), p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
|
|
codec = iks_next_tag(codec);
|
|
}
|
|
|
|
/* Now gather all of the codecs that we are asked for */
|
|
ast_rtp_codecs_payload_formats(ast_rtp_instance_get_codecs(p->rtp), &p->peercapability, &peernoncodeccapability);
|
|
p->jointcapability = p->capability & p->peercapability;
|
|
ast_mutex_unlock(&p->lock);
|
|
|
|
ast_setstate(chan, AST_STATE_RING);
|
|
if (!p->jointcapability) {
|
|
ast_log(LOG_WARNING, "Capabilities don't match : us - %s, peer - %s, combined - %s \n", ast_getformatname_multiple(s1, BUFSIZ, p->capability),
|
|
ast_getformatname_multiple(s2, BUFSIZ, p->peercapability),
|
|
ast_getformatname_multiple(s3, BUFSIZ, p->jointcapability));
|
|
/* close session if capabilities don't match */
|
|
gtalk_action(client, p, "reject");
|
|
p->alreadygone = 1;
|
|
gtalk_hangup(chan);
|
|
ast_channel_release(chan);
|
|
return -1;
|
|
}
|
|
|
|
res = ast_pbx_start(chan);
|
|
|
|
switch (res) {
|
|
case AST_PBX_FAILED:
|
|
ast_log(LOG_WARNING, "Failed to start PBX :(\n");
|
|
gtalk_response(client, from, pak, "service-unavailable", NULL);
|
|
break;
|
|
case AST_PBX_CALL_LIMIT:
|
|
ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
|
|
gtalk_response(client, from, pak, "service-unavailable", NULL);
|
|
break;
|
|
case AST_PBX_SUCCESS:
|
|
gtalk_response(client, from, pak, NULL, NULL);
|
|
gtalk_invite_response(p, p->them, p->us,p->sid, 0);
|
|
gtalk_create_candidates(client, p, p->sid, p->them, p->us);
|
|
/* nothing to do */
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_update_stun(struct gtalk *client, struct gtalk_pvt *p)
|
|
{
|
|
struct gtalk_candidate *tmp;
|
|
struct hostent *hp;
|
|
struct ast_hostent ahp;
|
|
struct sockaddr_in sin = { 0, };
|
|
struct sockaddr_in aux = { 0, };
|
|
|
|
if (time(NULL) == p->laststun)
|
|
return 0;
|
|
|
|
tmp = p->theircandidates;
|
|
p->laststun = time(NULL);
|
|
while (tmp) {
|
|
char username[256];
|
|
|
|
/* Find the IP address of the host */
|
|
hp = ast_gethostbyname(tmp->ip, &ahp);
|
|
sin.sin_family = AF_INET;
|
|
memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
|
|
sin.sin_port = htons(tmp->port);
|
|
snprintf(username, sizeof(username), "%s%s", tmp->username,
|
|
p->ourcandidates->username);
|
|
|
|
/* Find out the result of the STUN */
|
|
ast_rtp_instance_get_remote_address(p->rtp, &aux);
|
|
|
|
/* If the STUN result is different from the IP of the hostname,
|
|
lock on the stun IP of the hostname advertised by the
|
|
remote client */
|
|
if (aux.sin_addr.s_addr &&
|
|
aux.sin_addr.s_addr != sin.sin_addr.s_addr)
|
|
ast_rtp_instance_stun_request(p->rtp, &aux, username);
|
|
else
|
|
ast_rtp_instance_stun_request(p->rtp, &sin, username);
|
|
|
|
if (aux.sin_addr.s_addr) {
|
|
ast_debug(4, "Receiving RTP traffic from IP %s, matches with remote candidate's IP %s\n", ast_inet_ntoa(aux.sin_addr), tmp->ip);
|
|
ast_debug(4, "Sending STUN request to %s\n", tmp->ip);
|
|
}
|
|
|
|
tmp = tmp->next;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_add_candidate(struct gtalk *client, ikspak *pak)
|
|
{
|
|
struct gtalk_pvt *p = NULL, *tmp = NULL;
|
|
struct aji_client *c = client->connection;
|
|
struct gtalk_candidate *newcandidate = NULL;
|
|
iks *traversenodes = NULL, *receipt = NULL;
|
|
char *from;
|
|
|
|
from = iks_find_attrib(pak->x,"to");
|
|
if(!from)
|
|
from = c->jid->full;
|
|
|
|
for (tmp = client->p; tmp; tmp = tmp->next) {
|
|
if (iks_find_with_attrib(pak->x, "session", "id", tmp->sid)) {
|
|
p = tmp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!p)
|
|
return -1;
|
|
|
|
traversenodes = pak->query;
|
|
while(traversenodes) {
|
|
if(!strcasecmp(iks_name(traversenodes), "session")) {
|
|
traversenodes = iks_first_tag(traversenodes);
|
|
continue;
|
|
}
|
|
if(!strcasecmp(iks_name(traversenodes), "transport")) {
|
|
traversenodes = iks_first_tag(traversenodes);
|
|
continue;
|
|
}
|
|
if(!strcasecmp(iks_name(traversenodes), "candidate")) {
|
|
newcandidate = ast_calloc(1, sizeof(*newcandidate));
|
|
if (!newcandidate)
|
|
return 0;
|
|
ast_copy_string(newcandidate->name, iks_find_attrib(traversenodes, "name"),
|
|
sizeof(newcandidate->name));
|
|
ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "address"),
|
|
sizeof(newcandidate->ip));
|
|
newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
|
|
ast_copy_string(newcandidate->username, iks_find_attrib(traversenodes, "username"),
|
|
sizeof(newcandidate->username));
|
|
ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "password"),
|
|
sizeof(newcandidate->password));
|
|
newcandidate->preference = atof(iks_find_attrib(traversenodes, "preference"));
|
|
if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
|
|
newcandidate->protocol = AJI_PROTOCOL_UDP;
|
|
if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
|
|
newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
|
|
|
|
if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "stun"))
|
|
newcandidate->type = AJI_CONNECT_STUN;
|
|
if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "local"))
|
|
newcandidate->type = AJI_CONNECT_LOCAL;
|
|
if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
|
|
newcandidate->type = AJI_CONNECT_RELAY;
|
|
ast_copy_string(newcandidate->network, iks_find_attrib(traversenodes, "network"),
|
|
sizeof(newcandidate->network));
|
|
newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
|
|
newcandidate->next = NULL;
|
|
|
|
newcandidate->next = p->theircandidates;
|
|
p->theircandidates = newcandidate;
|
|
p->laststun = 0;
|
|
gtalk_update_stun(p->parent, p);
|
|
newcandidate = NULL;
|
|
}
|
|
traversenodes = iks_next_tag(traversenodes);
|
|
}
|
|
|
|
receipt = iks_new("iq");
|
|
iks_insert_attrib(receipt, "type", "result");
|
|
iks_insert_attrib(receipt, "from", from);
|
|
iks_insert_attrib(receipt, "to", iks_find_attrib(pak->x, "from"));
|
|
iks_insert_attrib(receipt, "id", iks_find_attrib(pak->x, "id"));
|
|
ast_aji_send(c, receipt);
|
|
|
|
iks_delete(receipt);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct ast_frame *gtalk_rtp_read(struct ast_channel *ast, struct gtalk_pvt *p)
|
|
{
|
|
struct ast_frame *f;
|
|
|
|
if (!p->rtp)
|
|
return &ast_null_frame;
|
|
f = ast_rtp_instance_read(p->rtp, 0);
|
|
gtalk_update_stun(p->parent, p);
|
|
if (p->owner) {
|
|
/* We already hold the channel lock */
|
|
if (f->frametype == AST_FRAME_VOICE) {
|
|
if (f->subclass != (p->owner->nativeformats & AST_FORMAT_AUDIO_MASK)) {
|
|
ast_debug(1, "Oooh, format changed to %d\n", f->subclass);
|
|
p->owner->nativeformats =
|
|
(p->owner->nativeformats & AST_FORMAT_VIDEO_MASK) | f->subclass;
|
|
ast_set_read_format(p->owner, p->owner->readformat);
|
|
ast_set_write_format(p->owner, p->owner->writeformat);
|
|
}
|
|
/* if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) {
|
|
f = ast_dsp_process(p->owner, p->vad, f);
|
|
if (option_debug && f && (f->frametype == AST_FRAME_DTMF))
|
|
ast_debug(1, "* Detected inband DTMF '%c'\n", f->subclass);
|
|
} */
|
|
}
|
|
}
|
|
return f;
|
|
}
|
|
|
|
static struct ast_frame *gtalk_read(struct ast_channel *ast)
|
|
{
|
|
struct ast_frame *fr;
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
fr = gtalk_rtp_read(ast, p);
|
|
ast_mutex_unlock(&p->lock);
|
|
return fr;
|
|
}
|
|
|
|
/*! \brief Send frame to media channel (rtp) */
|
|
static int gtalk_write(struct ast_channel *ast, struct ast_frame *frame)
|
|
{
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
int res = 0;
|
|
|
|
switch (frame->frametype) {
|
|
case AST_FRAME_VOICE:
|
|
if (!(frame->subclass & ast->nativeformats)) {
|
|
ast_log(LOG_WARNING,
|
|
"Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
|
|
frame->subclass, ast->nativeformats, ast->readformat,
|
|
ast->writeformat);
|
|
return 0;
|
|
}
|
|
if (p) {
|
|
ast_mutex_lock(&p->lock);
|
|
if (p->rtp) {
|
|
res = ast_rtp_instance_write(p->rtp, frame);
|
|
}
|
|
ast_mutex_unlock(&p->lock);
|
|
}
|
|
break;
|
|
case AST_FRAME_VIDEO:
|
|
if (p) {
|
|
ast_mutex_lock(&p->lock);
|
|
if (p->vrtp) {
|
|
res = ast_rtp_instance_write(p->vrtp, frame);
|
|
}
|
|
ast_mutex_unlock(&p->lock);
|
|
}
|
|
break;
|
|
case AST_FRAME_IMAGE:
|
|
return 0;
|
|
break;
|
|
default:
|
|
ast_log(LOG_WARNING, "Can't send %d type frames with Gtalk write\n",
|
|
frame->frametype);
|
|
return 0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int gtalk_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
|
|
{
|
|
struct gtalk_pvt *p = newchan->tech_pvt;
|
|
ast_mutex_lock(&p->lock);
|
|
|
|
if ((p->owner != oldchan)) {
|
|
ast_mutex_unlock(&p->lock);
|
|
return -1;
|
|
}
|
|
if (p->owner == oldchan)
|
|
p->owner = newchan;
|
|
ast_mutex_unlock(&p->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int gtalk_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
|
|
{
|
|
int res = 0;
|
|
|
|
switch (condition) {
|
|
case AST_CONTROL_HOLD:
|
|
ast_moh_start(ast, data, NULL);
|
|
break;
|
|
case AST_CONTROL_UNHOLD:
|
|
ast_moh_stop(ast);
|
|
break;
|
|
default:
|
|
ast_log(LOG_NOTICE, "Don't know how to indicate condition '%d'\n", condition);
|
|
res = -1;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int gtalk_sendtext(struct ast_channel *chan, const char *text)
|
|
{
|
|
int res = 0;
|
|
struct aji_client *client = NULL;
|
|
struct gtalk_pvt *p = chan->tech_pvt;
|
|
|
|
if (!p->parent) {
|
|
ast_log(LOG_ERROR, "Parent channel not found\n");
|
|
return -1;
|
|
}
|
|
if (!p->parent->connection) {
|
|
ast_log(LOG_ERROR, "XMPP client not found\n");
|
|
return -1;
|
|
}
|
|
client = p->parent->connection;
|
|
res = ast_aji_send_chat(client, p->them, text);
|
|
return res;
|
|
}
|
|
|
|
static int gtalk_digit_begin(struct ast_channel *chan, char digit)
|
|
{
|
|
return gtalk_digit(chan, digit, 0);
|
|
}
|
|
|
|
static int gtalk_digit_end(struct ast_channel *chan, char digit, unsigned int duration)
|
|
{
|
|
return gtalk_digit(chan, digit, duration);
|
|
}
|
|
|
|
static int gtalk_digit(struct ast_channel *ast, char digit, unsigned int duration)
|
|
{
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
struct gtalk *client = p->parent;
|
|
iks *iq, *gtalk, *dtmf;
|
|
char buffer[2] = {digit, '\0'};
|
|
char *lowerthem = NULL;
|
|
iq = iks_new("iq");
|
|
gtalk = iks_new("gtalk");
|
|
dtmf = iks_new("dtmf");
|
|
if(!iq || !gtalk || !dtmf) {
|
|
iks_delete(iq);
|
|
iks_delete(gtalk);
|
|
iks_delete(dtmf);
|
|
ast_log(LOG_ERROR, "Did not send dtmf do to memory issue\n");
|
|
return -1;
|
|
}
|
|
|
|
iks_insert_attrib(iq, "type", "set");
|
|
iks_insert_attrib(iq, "to", p->them);
|
|
iks_insert_attrib(iq, "from", p->us);
|
|
iks_insert_attrib(iq, "id", client->connection->mid);
|
|
ast_aji_increment_mid(client->connection->mid);
|
|
iks_insert_attrib(gtalk, "xmlns", "http://jabber.org/protocol/gtalk");
|
|
iks_insert_attrib(gtalk, "action", "session-info");
|
|
/* put the initiator attribute to lower case if we receive the call
|
|
* otherwise GoogleTalk won't establish the session */
|
|
if (!p->initiator) {
|
|
char c;
|
|
char *t = lowerthem = ast_strdupa(p->them);
|
|
while (((c = *t) != '/') && (*t++ = tolower(c)));
|
|
}
|
|
iks_insert_attrib(gtalk, "initiator", p->initiator ? p->us: lowerthem);
|
|
iks_insert_attrib(gtalk, "sid", p->sid);
|
|
iks_insert_attrib(dtmf, "xmlns", "http://jabber.org/protocol/gtalk/info/dtmf");
|
|
iks_insert_attrib(dtmf, "code", buffer);
|
|
iks_insert_node(iq, gtalk);
|
|
iks_insert_node(gtalk, dtmf);
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
if (ast->dtmff.frametype == AST_FRAME_DTMF_BEGIN || duration == 0) {
|
|
iks_insert_attrib(dtmf, "action", "button-down");
|
|
} else if (ast->dtmff.frametype == AST_FRAME_DTMF_END || duration != 0) {
|
|
iks_insert_attrib(dtmf, "action", "button-up");
|
|
}
|
|
ast_aji_send(client->connection, iq);
|
|
|
|
iks_delete(iq);
|
|
iks_delete(gtalk);
|
|
iks_delete(dtmf);
|
|
ast_mutex_unlock(&p->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int gtalk_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
|
|
{
|
|
ast_log(LOG_NOTICE, "XXX Implement gtalk sendhtml XXX\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* Not in use right now.
|
|
static int gtalk_auto_congest(void *nothing)
|
|
{
|
|
struct gtalk_pvt *p = nothing;
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
if (p->owner) {
|
|
if (!ast_channel_trylock(p->owner)) {
|
|
ast_log(LOG_NOTICE, "Auto-congesting %s\n", p->owner->name);
|
|
ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
|
|
ast_channel_unlock(p->owner);
|
|
}
|
|
}
|
|
ast_mutex_unlock(&p->lock);
|
|
return 0;
|
|
}
|
|
*/
|
|
|
|
/*! \brief Initiate new call, part of PBX interface
|
|
* dest is the dial string */
|
|
static int gtalk_call(struct ast_channel *ast, char *dest, int timeout)
|
|
{
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
|
|
if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
|
|
ast_log(LOG_WARNING, "gtalk_call called on %s, neither down nor reserved\n", ast->name);
|
|
return -1;
|
|
}
|
|
|
|
ast_setstate(ast, AST_STATE_RING);
|
|
if (!p->ringrule) {
|
|
ast_copy_string(p->ring, p->parent->connection->mid, sizeof(p->ring));
|
|
p->ringrule = iks_filter_add_rule(p->parent->connection->f, gtalk_ringing_ack, p,
|
|
IKS_RULE_ID, p->ring, IKS_RULE_DONE);
|
|
} else
|
|
ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");
|
|
|
|
gtalk_invite(p, p->them, p->us, p->sid, 1);
|
|
gtalk_create_candidates(p->parent, p, p->sid, p->them, p->us);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Hangup a call through the gtalk proxy channel */
|
|
static int gtalk_hangup(struct ast_channel *ast)
|
|
{
|
|
struct gtalk_pvt *p = ast->tech_pvt;
|
|
struct gtalk *client;
|
|
|
|
ast_mutex_lock(&p->lock);
|
|
client = p->parent;
|
|
p->owner = NULL;
|
|
ast->tech_pvt = NULL;
|
|
if (!p->alreadygone)
|
|
gtalk_action(client, p, "terminate");
|
|
ast_mutex_unlock(&p->lock);
|
|
|
|
gtalk_free_pvt(client, p);
|
|
ast_module_unref(ast_module_info->self);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Part of PBX interface */
|
|
static struct ast_channel *gtalk_request(const char *type, int format, const struct ast_channel *requestor, void *data, int *cause)
|
|
{
|
|
struct gtalk_pvt *p = NULL;
|
|
struct gtalk *client = NULL;
|
|
char *sender = NULL, *to = NULL, *s = NULL;
|
|
struct ast_channel *chan = NULL;
|
|
|
|
if (data) {
|
|
s = ast_strdupa(data);
|
|
if (s) {
|
|
sender = strsep(&s, "/");
|
|
if (sender && (sender[0] != '\0'))
|
|
to = strsep(&s, "/");
|
|
if (!to) {
|
|
ast_log(LOG_ERROR, "Bad arguments in Gtalk Dialstring: %s\n", (char*) data);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
client = find_gtalk(to, sender);
|
|
if (!client) {
|
|
ast_log(LOG_WARNING, "Could not find recipient.\n");
|
|
return NULL;
|
|
}
|
|
if (!strcasecmp(client->name, "guest")){
|
|
/* the guest account is not tied to any configured XMPP client,
|
|
let's set it now */
|
|
client->connection = ast_aji_get_client(sender);
|
|
if (!client->connection) {
|
|
ast_log(LOG_ERROR, "No XMPP client to talk to, us (partial JID) : %s\n", sender);
|
|
ASTOBJ_UNREF(client, gtalk_member_destroy);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
ASTOBJ_WRLOCK(client);
|
|
p = gtalk_alloc(client, strchr(sender, '@') ? sender : client->connection->jid->full, strchr(to, '@') ? to : client->user, NULL);
|
|
if (p)
|
|
chan = gtalk_new(client, p, AST_STATE_DOWN, to, requestor ? requestor->linkedid : NULL);
|
|
|
|
ASTOBJ_UNLOCK(client);
|
|
return chan;
|
|
}
|
|
|
|
/*! \brief CLI command "gtalk show channels" */
|
|
static char *gtalk_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
#define FORMAT "%-30.30s %-30.30s %-15.15s %-5.5s %-5.5s \n"
|
|
struct gtalk_pvt *p;
|
|
struct ast_channel *chan;
|
|
int numchans = 0;
|
|
char them[AJI_MAX_JIDLEN];
|
|
char *jid = NULL;
|
|
char *resource = NULL;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "gtalk show channels";
|
|
e->usage =
|
|
"Usage: gtalk show channels\n"
|
|
" Shows current state of the Gtalk channels.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc != 3)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(>alklock);
|
|
ast_cli(a->fd, FORMAT, "Channel", "Jabber ID", "Resource", "Read", "Write");
|
|
ASTOBJ_CONTAINER_TRAVERSE(>alk_list, 1, {
|
|
ASTOBJ_WRLOCK(iterator);
|
|
p = iterator->p;
|
|
while(p) {
|
|
chan = p->owner;
|
|
ast_copy_string(them, p->them, sizeof(them));
|
|
jid = them;
|
|
resource = strchr(them, '/');
|
|
if (!resource)
|
|
resource = "None";
|
|
else {
|
|
*resource = '\0';
|
|
resource ++;
|
|
}
|
|
if (chan)
|
|
ast_cli(a->fd, FORMAT,
|
|
chan->name,
|
|
jid,
|
|
resource,
|
|
ast_getformatname(chan->readformat),
|
|
ast_getformatname(chan->writeformat)
|
|
);
|
|
else
|
|
ast_log(LOG_WARNING, "No available channel\n");
|
|
numchans ++;
|
|
p = p->next;
|
|
}
|
|
ASTOBJ_UNLOCK(iterator);
|
|
});
|
|
|
|
ast_mutex_unlock(>alklock);
|
|
|
|
ast_cli(a->fd, "%d active gtalk channel%s\n", numchans, (numchans != 1) ? "s" : "");
|
|
return CLI_SUCCESS;
|
|
#undef FORMAT
|
|
}
|
|
|
|
/*! \brief CLI command "gtalk reload" */
|
|
static char *gtalk_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "gtalk reload";
|
|
e->usage =
|
|
"Usage: gtalk reload\n"
|
|
" Reload gtalk channel driver.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
ast_verbose("IT DOES WORK!\n");
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
static int gtalk_parser(void *data, ikspak *pak)
|
|
{
|
|
struct gtalk *client = ASTOBJ_REF((struct gtalk *) data);
|
|
|
|
if (iks_find_attrib(pak->x, "type") && !strcmp(iks_find_attrib (pak->x, "type"),"error")) {
|
|
ast_log(LOG_NOTICE, "Remote peer reported an error, trying to establish the call anyway\n");
|
|
}
|
|
else if (iks_find_with_attrib(pak->x, "session", "type", "initiate")) {
|
|
/* New call */
|
|
gtalk_newcall(client, pak);
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "candidates") || iks_find_with_attrib(pak->x, "session", "type", "transport-info")) {
|
|
ast_debug(3, "About to add candidate!\n");
|
|
gtalk_add_candidate(client, pak);
|
|
ast_debug(3, "Candidate Added!\n");
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "accept")) {
|
|
gtalk_is_answered(client, pak);
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "transport-accept")) {
|
|
gtalk_is_accepted(client, pak);
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "content-info") || iks_find_with_attrib(pak->x, "gtalk", "action", "session-info")) {
|
|
gtalk_handle_dtmf(client, pak);
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "terminate")) {
|
|
gtalk_hangup_farend(client, pak);
|
|
} else if (iks_find_with_attrib(pak->x, "session", "type", "reject")) {
|
|
gtalk_hangup_farend(client, pak);
|
|
}
|
|
ASTOBJ_UNREF(client, gtalk_member_destroy);
|
|
return IKS_FILTER_EAT;
|
|
}
|
|
|
|
/* Not using this anymore probably take out soon
|
|
static struct gtalk_candidate *gtalk_create_candidate(char *args)
|
|
{
|
|
char *name, *type, *preference, *protocol;
|
|
struct gtalk_candidate *res;
|
|
res = ast_calloc(1, sizeof(*res));
|
|
if (args)
|
|
name = args;
|
|
if ((args = strchr(args, ','))) {
|
|
*args = '\0';
|
|
args++;
|
|
preference = args;
|
|
}
|
|
if ((args = strchr(args, ','))) {
|
|
*args = '\0';
|
|
args++;
|
|
protocol = args;
|
|
}
|
|
if ((args = strchr(args, ','))) {
|
|
*args = '\0';
|
|
args++;
|
|
type = args;
|
|
}
|
|
if (name)
|
|
ast_copy_string(res->name, name, sizeof(res->name));
|
|
if (preference) {
|
|
res->preference = atof(preference);
|
|
}
|
|
if (protocol) {
|
|
if (!strcasecmp("udp", protocol))
|
|
res->protocol = AJI_PROTOCOL_UDP;
|
|
if (!strcasecmp("ssltcp", protocol))
|
|
res->protocol = AJI_PROTOCOL_SSLTCP;
|
|
}
|
|
if (type) {
|
|
if (!strcasecmp("stun", type))
|
|
res->type = AJI_CONNECT_STUN;
|
|
if (!strcasecmp("local", type))
|
|
res->type = AJI_CONNECT_LOCAL;
|
|
if (!strcasecmp("relay", type))
|
|
res->type = AJI_CONNECT_RELAY;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
*/
|
|
|
|
static int gtalk_create_member(char *label, struct ast_variable *var, int allowguest,
|
|
struct ast_codec_pref prefs, char *context,
|
|
struct gtalk *member)
|
|
{
|
|
struct aji_client *client;
|
|
|
|
if (!member)
|
|
ast_log(LOG_WARNING, "Out of memory.\n");
|
|
|
|
ast_copy_string(member->name, label, sizeof(member->name));
|
|
ast_copy_string(member->user, label, sizeof(member->user));
|
|
ast_copy_string(member->context, context, sizeof(member->context));
|
|
member->allowguest = allowguest;
|
|
member->prefs = prefs;
|
|
while (var) {
|
|
#if 0
|
|
struct gtalk_candidate *candidate = NULL;
|
|
#endif
|
|
if (!strcasecmp(var->name, "username"))
|
|
ast_copy_string(member->user, var->value, sizeof(member->user));
|
|
else if (!strcasecmp(var->name, "disallow"))
|
|
ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 0);
|
|
else if (!strcasecmp(var->name, "allow"))
|
|
ast_parse_allow_disallow(&member->prefs, &member->capability, var->value, 1);
|
|
else if (!strcasecmp(var->name, "context"))
|
|
ast_copy_string(member->context, var->value, sizeof(member->context));
|
|
else if (!strcasecmp(var->name, "parkinglot"))
|
|
ast_copy_string(member->parkinglot, var->value, sizeof(member->parkinglot));
|
|
#if 0
|
|
else if (!strcasecmp(var->name, "candidate")) {
|
|
candidate = gtalk_create_candidate(var->value);
|
|
if (candidate) {
|
|
candidate->next = member->ourcandidates;
|
|
member->ourcandidates = candidate;
|
|
}
|
|
}
|
|
#endif
|
|
else if (!strcasecmp(var->name, "connection")) {
|
|
if ((client = ast_aji_get_client(var->value))) {
|
|
member->connection = client;
|
|
iks_filter_add_rule(client->f, gtalk_parser, member,
|
|
IKS_RULE_TYPE, IKS_PAK_IQ,
|
|
IKS_RULE_FROM_PARTIAL, member->user,
|
|
IKS_RULE_NS, "http://www.google.com/session",
|
|
IKS_RULE_DONE);
|
|
|
|
} else {
|
|
ast_log(LOG_ERROR, "connection referenced not found!\n");
|
|
return 0;
|
|
}
|
|
}
|
|
var = var->next;
|
|
}
|
|
if (member->connection && member->user)
|
|
member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user);
|
|
else {
|
|
ast_log(LOG_ERROR, "No Connection or Username!\n");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int gtalk_load_config(void)
|
|
{
|
|
char *cat = NULL;
|
|
struct ast_config *cfg = NULL;
|
|
char context[AST_MAX_CONTEXT];
|
|
char parkinglot[AST_MAX_CONTEXT];
|
|
int allowguest = 1;
|
|
struct ast_variable *var;
|
|
struct gtalk *member;
|
|
struct ast_codec_pref prefs;
|
|
struct aji_client_container *clients;
|
|
struct gtalk_candidate *global_candidates = NULL;
|
|
struct hostent *hp;
|
|
struct ast_hostent ahp;
|
|
struct ast_flags config_flags = { 0 };
|
|
|
|
cfg = ast_config_load(GOOGLE_CONFIG, config_flags);
|
|
if (!cfg) {
|
|
return 0;
|
|
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
|
|
ast_log(LOG_ERROR, "Config file %s is in an invalid format. Aborting.\n", GOOGLE_CONFIG);
|
|
return 0;
|
|
}
|
|
|
|
/* Copy the default jb config over global_jbconf */
|
|
memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
|
|
|
|
cat = ast_category_browse(cfg, NULL);
|
|
for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
|
|
/* handle jb conf */
|
|
if (!ast_jb_read_conf(&global_jbconf, var->name, var->value))
|
|
continue;
|
|
|
|
if (!strcasecmp(var->name, "allowguest"))
|
|
allowguest =
|
|
(ast_true(ast_variable_retrieve(cfg, "general", "allowguest"))) ? 1 : 0;
|
|
else if (!strcasecmp(var->name, "disallow"))
|
|
ast_parse_allow_disallow(&prefs, &global_capability, var->value, 0);
|
|
else if (!strcasecmp(var->name, "allow"))
|
|
ast_parse_allow_disallow(&prefs, &global_capability, var->value, 1);
|
|
else if (!strcasecmp(var->name, "context"))
|
|
ast_copy_string(context, var->value, sizeof(context));
|
|
else if (!strcasecmp(var->name, "parkinglot"))
|
|
ast_copy_string(parkinglot, var->value, sizeof(parkinglot));
|
|
else if (!strcasecmp(var->name, "bindaddr")) {
|
|
if (!(hp = ast_gethostbyname(var->value, &ahp))) {
|
|
ast_log(LOG_WARNING, "Invalid address: %s\n", var->value);
|
|
} else {
|
|
memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
|
|
}
|
|
}
|
|
/* Idea to allow for custom candidates */
|
|
/*
|
|
else if (!strcasecmp(var->name, "candidate")) {
|
|
candidate = gtalk_create_candidate(var->value);
|
|
if (candidate) {
|
|
candidate->next = global_candidates;
|
|
global_candidates = candidate;
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
while (cat) {
|
|
if (strcasecmp(cat, "general")) {
|
|
var = ast_variable_browse(cfg, cat);
|
|
member = ast_calloc(1, sizeof(*member));
|
|
ASTOBJ_INIT(member);
|
|
ASTOBJ_WRLOCK(member);
|
|
if (!strcasecmp(cat, "guest")) {
|
|
ast_copy_string(member->name, "guest", sizeof(member->name));
|
|
ast_copy_string(member->user, "guest", sizeof(member->user));
|
|
ast_copy_string(member->context, context, sizeof(member->context));
|
|
ast_copy_string(member->parkinglot, parkinglot, sizeof(member->parkinglot));
|
|
member->allowguest = allowguest;
|
|
member->prefs = prefs;
|
|
while (var) {
|
|
if (!strcasecmp(var->name, "disallow"))
|
|
ast_parse_allow_disallow(&member->prefs, &member->capability,
|
|
var->value, 0);
|
|
else if (!strcasecmp(var->name, "allow"))
|
|
ast_parse_allow_disallow(&member->prefs, &member->capability,
|
|
var->value, 1);
|
|
else if (!strcasecmp(var->name, "context"))
|
|
ast_copy_string(member->context, var->value,
|
|
sizeof(member->context));
|
|
else if (!strcasecmp(var->name, "parkinglot"))
|
|
ast_copy_string(member->parkinglot, var->value,
|
|
sizeof(member->parkinglot));
|
|
/* Idea to allow for custom candidates */
|
|
/*
|
|
else if (!strcasecmp(var->name, "candidate")) {
|
|
candidate = gtalk_create_candidate(var->value);
|
|
if (candidate) {
|
|
candidate->next = member->ourcandidates;
|
|
member->ourcandidates = candidate;
|
|
}
|
|
}
|
|
*/
|
|
var = var->next;
|
|
}
|
|
ASTOBJ_UNLOCK(member);
|
|
clients = ast_aji_get_clients();
|
|
if (clients) {
|
|
ASTOBJ_CONTAINER_TRAVERSE(clients, 1, {
|
|
ASTOBJ_WRLOCK(iterator);
|
|
ASTOBJ_WRLOCK(member);
|
|
member->connection = NULL;
|
|
iks_filter_add_rule(iterator->f, gtalk_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, "http://www.google.com/session", IKS_RULE_DONE);
|
|
iks_filter_add_rule(iterator->f, gtalk_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, "http://jabber.org/protocol/gtalk", IKS_RULE_DONE);
|
|
ASTOBJ_UNLOCK(member);
|
|
ASTOBJ_UNLOCK(iterator);
|
|
});
|
|
ASTOBJ_CONTAINER_LINK(>alk_list, member);
|
|
ASTOBJ_UNREF(member, gtalk_member_destroy);
|
|
} else {
|
|
ASTOBJ_UNLOCK(member);
|
|
ASTOBJ_UNREF(member, gtalk_member_destroy);
|
|
}
|
|
} else {
|
|
ASTOBJ_UNLOCK(member);
|
|
if (gtalk_create_member(cat, var, allowguest, prefs, context, member))
|
|
ASTOBJ_CONTAINER_LINK(>alk_list, member);
|
|
ASTOBJ_UNREF(member, gtalk_member_destroy);
|
|
}
|
|
}
|
|
cat = ast_category_browse(cfg, cat);
|
|
}
|
|
gtalk_free_candidates(global_candidates);
|
|
return 1;
|
|
}
|
|
|
|
/*! \brief Load module into PBX, register channel */
|
|
static int load_module(void)
|
|
{
|
|
char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
|
|
free(jabber_loaded);
|
|
if (!jabber_loaded) {
|
|
/* If embedded, check for a different module name */
|
|
jabber_loaded = ast_module_helper("", "res_jabber", 0, 0, 0, 0);
|
|
free(jabber_loaded);
|
|
if (!jabber_loaded) {
|
|
ast_log(LOG_ERROR, "chan_gtalk.so depends upon res_jabber.so\n");
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
}
|
|
|
|
ASTOBJ_CONTAINER_INIT(>alk_list);
|
|
if (!gtalk_load_config()) {
|
|
ast_log(LOG_ERROR, "Unable to read config file %s. Not loading module.\n", GOOGLE_CONFIG);
|
|
return 0;
|
|
}
|
|
|
|
sched = sched_context_create();
|
|
if (!sched)
|
|
ast_log(LOG_WARNING, "Unable to create schedule context\n");
|
|
|
|
io = io_context_create();
|
|
if (!io)
|
|
ast_log(LOG_WARNING, "Unable to create I/O context\n");
|
|
|
|
if (ast_find_ourip(&__ourip, bindaddr)) {
|
|
ast_log(LOG_WARNING, "Unable to get own IP address, Gtalk disabled\n");
|
|
return 0;
|
|
}
|
|
|
|
ast_rtp_glue_register(>alk_rtp_glue);
|
|
ast_cli_register_multiple(gtalk_cli, ARRAY_LEN(gtalk_cli));
|
|
|
|
/* Make sure we can register our channel type */
|
|
if (ast_channel_register(>alk_tech)) {
|
|
ast_log(LOG_ERROR, "Unable to register channel class %s\n", gtalk_tech.type);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Reload module */
|
|
static int reload(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Unload the gtalk channel from Asterisk */
|
|
static int unload_module(void)
|
|
{
|
|
struct gtalk_pvt *privates = NULL;
|
|
ast_cli_unregister_multiple(gtalk_cli, ARRAY_LEN(gtalk_cli));
|
|
/* First, take us out of the channel loop */
|
|
ast_channel_unregister(>alk_tech);
|
|
ast_rtp_glue_unregister(>alk_rtp_glue);
|
|
|
|
if (!ast_mutex_lock(>alklock)) {
|
|
/* Hangup all interfaces if they have an owner */
|
|
ASTOBJ_CONTAINER_TRAVERSE(>alk_list, 1, {
|
|
ASTOBJ_WRLOCK(iterator);
|
|
privates = iterator->p;
|
|
while(privates) {
|
|
if (privates->owner)
|
|
ast_softhangup(privates->owner, AST_SOFTHANGUP_APPUNLOAD);
|
|
privates = privates->next;
|
|
}
|
|
iterator->p = NULL;
|
|
ASTOBJ_UNLOCK(iterator);
|
|
});
|
|
ast_mutex_unlock(>alklock);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unable to lock the monitor\n");
|
|
return -1;
|
|
}
|
|
ASTOBJ_CONTAINER_DESTROYALL(>alk_list, gtalk_member_destroy);
|
|
ASTOBJ_CONTAINER_DESTROY(>alk_list);
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Gtalk Channel Driver",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.reload = reload,
|
|
);
|