chan_jingle.c File Reference

Jingle Channel Driver. More...

#include "asterisk.h"
#include <sys/socket.h>
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/signal.h>
#include <iksemel.h>
#include <pthread.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/rtp.h"
#include "asterisk/acl.h"
#include "asterisk/callerid.h"
#include "asterisk/file.h"
#include "asterisk/cli.h"
#include "asterisk/app.h"
#include "asterisk/musiconhold.h"
#include "asterisk/manager.h"
#include "asterisk/stringfields.h"
#include "asterisk/utils.h"
#include "asterisk/causes.h"
#include "asterisk/astobj.h"
#include "asterisk/abstract_jb.h"
#include "asterisk/jabber.h"
#include "asterisk/jingle.h"

Include dependency graph for chan_jingle.c:

Go to the source code of this file.

Data Structures
struct	jingle
struct	jingle_candidate
struct	jingle_container
struct	jingle_pvt
Defines
#define	FORMAT   "%-30.30s %-30.30s %-15.15s %-5.5s %-5.5s \n"
#define	JINGLE_CONFIG   "jingle.conf"
Enumerations
enum	jingle_connect_type { AJI_CONNECT_HOST, AJI_CONNECT_PRFLX, AJI_CONNECT_RELAY, AJI_CONNECT_SRFLX }
enum	jingle_protocol { AJI_PROTOCOL_UDP, AJI_PROTOCOL_SSLTCP }
Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static void	add_codec_to_answer (const struct jingle_pvt *p, int codec, iks *dcodecs)
static struct jingle *	find_jingle (char *name, char *connection)
static int	jingle_accept_call (struct jingle *client, struct jingle_pvt *p)
static int	jingle_action (struct jingle *client, struct jingle_pvt *p, const char *action)
static int	jingle_add_candidate (struct jingle *client, ikspak *pak)
static struct jingle_pvt *	jingle_alloc (struct jingle *client, const char *from, const char *sid)
static int	jingle_answer (struct ast_channel *ast)
static int	jingle_call (struct ast_channel *ast, char *dest, int timeout)
	Initiate new call, part of PBX interface dest is the dial string.
static int	jingle_create_candidates (struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
static int	jingle_create_member (char *label, struct ast_variable *var, int allowguest, struct ast_codec_pref prefs, char *context, struct jingle *member)
static int	jingle_digit (struct ast_channel *ast, char digit, unsigned int duration)
static int	jingle_digit_begin (struct ast_channel *ast, char digit)
static int	jingle_digit_end (struct ast_channel *ast, char digit, unsigned int duration)
static char *	jingle_do_reload (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
	CLI command "jingle reload".
static int	jingle_fixup (struct ast_channel *oldchan, struct ast_channel *newchan)
static void	jingle_free_candidates (struct jingle_candidate *candidate)
static void	jingle_free_pvt (struct jingle *client, struct jingle_pvt *p)
static int	jingle_get_codec (struct ast_channel *chan)
static enum ast_rtp_get_result	jingle_get_rtp_peer (struct ast_channel *chan, struct ast_rtp **rtp)
static int	jingle_handle_dtmf (struct jingle *client, ikspak *pak)
static int	jingle_hangup (struct ast_channel *ast)
	Hangup a call through the jingle proxy channel.
static int	jingle_hangup_farend (struct jingle *client, ikspak *pak)
static int	jingle_indicate (struct ast_channel *ast, int condition, const void *data, size_t datalen)
static int	jingle_is_answered (struct jingle *client, ikspak *pak)
static int	jingle_load_config (void)
static void	jingle_member_destroy (struct jingle *obj)
static struct ast_channel *	jingle_new (struct jingle *client, struct jingle_pvt *i, int state, const char *title)
	Start new jingle channel.
static int	jingle_newcall (struct jingle *client, ikspak *pak)
static int	jingle_parser (void *data, ikspak *pak)
static struct ast_frame *	jingle_read (struct ast_channel *ast)
static struct ast_channel *	jingle_request (const char *request_type, int format, void *data, int *cause)
	Part of PBX interface.
static int	jingle_response (struct jingle *client, ikspak *pak, const char *reasonstr, const char *reasonstr2)
static int	jingle_ringing_ack (void *data, ikspak *pak)
static struct ast_frame *	jingle_rtp_read (struct ast_channel *ast, struct jingle_pvt *p)
static int	jingle_sendhtml (struct ast_channel *ast, int subclass, const char *data, int datalen)
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)
static char *	jingle_show_channels (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
	CLI command "jingle show channels".
static int	jingle_transmit_invite (struct jingle_pvt *p)
static int	jingle_update_stun (struct jingle *client, struct jingle_pvt *p)
static int	jingle_write (struct ast_channel *ast, struct ast_frame *frame)
	Send frame to media channel (rtp)
static int	load_module (void)
	Load module into PBX, register channel.
static int	reload (void)
	Reload module.
static int	unload_module (void)
	Unload the jingle channel from Asterisk.
Variables
static struct ast_module_info __MODULE_INFO_SECTION	__mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Jingle Channel Driver" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .reload = reload, }
static struct in_addr	__ourip
static struct ast_module_info *	ast_module_info = &__mod_info
static struct sockaddr_in	bindaddr = { 0, }
static const char	channel_type [] = "Jingle"
static struct ast_jb_conf	default_jbconf
static const char	desc [] = "Jingle Channel"
static char	externip [16]
static int	global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263
static struct ast_jb_conf	global_jbconf
static struct io_context *	io
static struct ast_cli_entry	jingle_cli []
static struct jingle_container	jingle_list
static struct ast_rtp_protocol	jingle_rtp
	RTP driver interface.
static struct ast_channel_tech	jingle_tech
	PBX interface structure for channel registration.
static ast_mutex_t	jinglelock = AST_MUTEX_INIT_VALUE
static struct sched_context *	sched

---

Detailed Description

Jingle Channel Driver.

Author:

Matt O'Gorman <mogorman@digium.com>

ExtRef:

Iksemel http://iksemel.jabberstudio.org/

Definition in file chan_jingle.c.

---

Define Documentation

#define FORMAT   "%-30.30s %-30.30s %-15.15s %-5.5s %-5.5s \n"

#define JINGLE_CONFIG   "jingle.conf"

Definition at line 72 of file chan_jingle.c.

Referenced by jingle_load_config(), and load_module().

---

Enumeration Type Documentation

enum jingle_connect_type

Enumerator:

AJI_CONNECT_HOST
AJI_CONNECT_PRFLX
AJI_CONNECT_RELAY
AJI_CONNECT_SRFLX

Definition at line 90 of file chan_jingle.c.

                         {
   AJI_CONNECT_HOST,
   AJI_CONNECT_PRFLX,
   AJI_CONNECT_RELAY,
   AJI_CONNECT_SRFLX,
};

enum jingle_protocol

Enumerator:

AJI_PROTOCOL_UDP
AJI_PROTOCOL_SSLTCP

Definition at line 85 of file chan_jingle.c.

                     {
   AJI_PROTOCOL_UDP,
   AJI_PROTOCOL_SSLTCP,
};

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 1935 of file chan_jingle.c.

static void __unreg_module

(

void

)

[static]

Definition at line 1935 of file chan_jingle.c.

static void add_codec_to_answer	(	const struct jingle_pvt *	p,
		int	codec,
		iks *	dcodecs
	)		[static]

Definition at line 270 of file chan_jingle.c.

References ast_getformatname(), ast_rtp_lookup_code(), format, and jingle_pvt::rtp.

Referenced by jingle_accept_call().

{
   char *format = ast_getformatname(codec);

   if (!strcasecmp("ulaw", format)) {
      iks *payload_eg711u, *payload_pcmu;
      payload_pcmu = iks_new("payload-type");
      iks_insert_attrib(payload_pcmu, "id", "0");
      iks_insert_attrib(payload_pcmu, "name", "PCMU");
      payload_eg711u = iks_new("payload-type");
      iks_insert_attrib(payload_eg711u, "id", "100");
      iks_insert_attrib(payload_eg711u, "name", "EG711U");
      iks_insert_node(dcodecs, payload_pcmu);
      iks_insert_node(dcodecs, payload_eg711u);
   }
   if (!strcasecmp("alaw", format)) {
      iks *payload_eg711a;
      iks *payload_pcma = iks_new("payload-type");
      iks_insert_attrib(payload_pcma, "id", "8");
      iks_insert_attrib(payload_pcma, "name", "PCMA");
      payload_eg711a = iks_new("payload-type");
      iks_insert_attrib(payload_eg711a, "id", "101");
      iks_insert_attrib(payload_eg711a, "name", "EG711A");
      iks_insert_node(dcodecs, payload_pcma);
      iks_insert_node(dcodecs, payload_eg711a);
   }
   if (!strcasecmp("ilbc", format)) {
      iks *payload_ilbc = iks_new("payload-type");
      iks_insert_attrib(payload_ilbc, "id", "97");
      iks_insert_attrib(payload_ilbc, "name", "iLBC");
      iks_insert_node(dcodecs, payload_ilbc);
   }
   if (!strcasecmp("g723", format)) {
      iks *payload_g723 = iks_new("payload-type");
      iks_insert_attrib(payload_g723, "id", "4");
      iks_insert_attrib(payload_g723, "name", "G723");
      iks_insert_node(dcodecs, payload_g723);
   }
   ast_rtp_lookup_code(p->rtp, 1, codec);
}

static struct jingle* find_jingle	(	char *	name,
		char *	connection
	)		[static, read]

Definition at line 244 of file chan_jingle.c.

References ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_RDLOCK, ASTOBJ_UNLOCK, and jingle_list.

Referenced by jingle_request().

{
   struct jingle *jingle = NULL;

   jingle = ASTOBJ_CONTAINER_FIND(&jingle_list, name);
   if (!jingle && strchr(name, '@'))
      jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingle_list, name, user,,, strcasecmp);

   if (!jingle) {          
      /* guest call */
      ASTOBJ_CONTAINER_TRAVERSE(&jingle_list, 1, {
         ASTOBJ_RDLOCK(iterator);
         if (!strcasecmp(iterator->name, "guest")) {
            jingle = iterator;
         }
         ASTOBJ_UNLOCK(iterator);

         if (jingle)
            break;
      });

   }
   return jingle;
}

static int jingle_accept_call	(	struct jingle *	client,
		struct jingle_pvt *	p
	)		[static]

Definition at line 311 of file chan_jingle.c.

References add_codec_to_answer(), ast_aji_increment_mid(), ast_aji_send(), ast_codec_pref_index(), jingle::capability, jingle::connection, jingle_pvt::initiator, aji_client::jid, aji_client::jingle, JINGLE_ACCEPT, JINGLE_AUDIO_RTP_NS, JINGLE_NODE, JINGLE_NS, JINGLE_SID, aji_client::mid, jingle::p, jingle::prefs, jingle_pvt::sid, jingle_pvt::them, and jingle::user.

Referenced by jingle_answer().

{
   struct jingle_pvt *tmp = client->p;
   struct aji_client *c = client->connection;
   iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
   int x;
   int pref_codec = 0;
   int alreadysent = 0;

   if (p->initiator)
      return 1;

   iq = iks_new("iq");
   jingle = iks_new(JINGLE_NODE);
   dcodecs = iks_new("description");
   if (iq && jingle && dcodecs) {
      iks_insert_attrib(dcodecs, "xmlns", JINGLE_AUDIO_RTP_NS);

      for (x = 0; x < 32; x++) {
         if (!(pref_codec = ast_codec_pref_index(&client->prefs, x)))
            break;
         if (!(client->capability & pref_codec))
            continue;
         if (alreadysent & pref_codec)
            continue;
         add_codec_to_answer(p, pref_codec, dcodecs);
         alreadysent |= pref_codec;
      }
      payload_red = iks_new("payload-type");
      iks_insert_attrib(payload_red, "id", "117");
      iks_insert_attrib(payload_red, "name", "red");
      payload_audio = iks_new("payload-type");
      iks_insert_attrib(payload_audio, "id", "106");
      iks_insert_attrib(payload_audio, "name", "audio/telephone-event");
      payload_cn = iks_new("payload-type");
      iks_insert_attrib(payload_cn, "id", "13");
      iks_insert_attrib(payload_cn, "name", "CN");


      iks_insert_attrib(iq, "type", "set");
      iks_insert_attrib(iq, "to", (p->them) ? p->them : client->user);
      iks_insert_attrib(iq, "id", client->connection->mid);
      ast_aji_increment_mid(client->connection->mid);

      iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
      iks_insert_attrib(jingle, "action", JINGLE_ACCEPT);
      iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
      iks_insert_attrib(jingle, JINGLE_SID, tmp->sid);
      iks_insert_node(iq, jingle);
      iks_insert_node(jingle, dcodecs);
      iks_insert_node(dcodecs, payload_red);
      iks_insert_node(dcodecs, payload_audio);
      iks_insert_node(dcodecs, payload_cn);

      ast_aji_send(c, iq);

      iks_delete(payload_red);
      iks_delete(payload_audio);
      iks_delete(payload_cn);
      iks_delete(dcodecs);
      iks_delete(jingle);
      iks_delete(iq);
   }
   return 1;
}

static int jingle_action	(	struct jingle *	client,
		struct jingle_pvt *	p,
		const char *	action
	)		[static]

Definition at line 883 of file chan_jingle.c.

References ast_aji_increment_mid(), ast_aji_send(), jingle::connection, jingle_pvt::initiator, aji_client::jid, JINGLE_NS, JINGLE_SID, aji_client::mid, jingle_pvt::sid, and jingle_pvt::them.

Referenced by jingle_hangup().

{
   iks *iq, *jingle = NULL;
   int res = -1;

   iq = iks_new("iq");
   jingle = iks_new("jingle");
   
   if (iq) {
      iks_insert_attrib(iq, "type", "set");
      iks_insert_attrib(iq, "from", client->connection->jid->full);
      iks_insert_attrib(iq, "to", p->them);
      iks_insert_attrib(iq, "id", client->connection->mid);
      ast_aji_increment_mid(client->connection->mid);
      if (jingle) {
         iks_insert_attrib(jingle, "action", action);
         iks_insert_attrib(jingle, JINGLE_SID, p->sid);
         iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
         iks_insert_attrib(jingle, "xmlns", JINGLE_NS);

         iks_insert_node(iq, jingle);

         ast_aji_send(client->connection, iq);
         res = 0;
      }
   }
   
   iks_delete(jingle);
   iks_delete(iq);
   
   return res;
}

static int jingle_add_candidate	(	struct jingle *	client,
		ikspak *	pak
	)		[static]

Definition at line 1089 of file chan_jingle.c.

References AJI_CONNECT_HOST, AJI_CONNECT_PRFLX, AJI_CONNECT_RELAY, AJI_CONNECT_SRFLX, AJI_PROTOCOL_SSLTCP, AJI_PROTOCOL_UDP, ast_aji_send(), ast_calloc, ast_copy_string(), jingle::connection, jingle_candidate::generation, jingle_candidate::ip, aji_client::jid, JINGLE_NODE, JINGLE_SID, jingle_update_stun(), jingle_pvt::laststun, jingle_candidate::network, jingle_candidate::next, jingle_pvt::next, jingle::p, jingle_pvt::parent, jingle_candidate::password, jingle_candidate::port, jingle_candidate::protocol, jingle_pvt::theircandidates, and jingle_candidate::type.

Referenced by jingle_parser().

{
   struct jingle_pvt *p = NULL, *tmp = NULL;
   struct aji_client *c = client->connection;
   struct jingle_candidate *newcandidate = NULL;
   iks *traversenodes = NULL, *receipt = NULL;

   for (tmp = client->p; tmp; tmp = tmp->next) {
      if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
         p = tmp;
         break;
      }
   }

   if (!p)
      return -1;

   traversenodes = pak->query;
   while(traversenodes) {
      if(!strcasecmp(iks_name(traversenodes), "jingle")) {
         traversenodes = iks_child(traversenodes);
         continue;
      }
      if(!strcasecmp(iks_name(traversenodes), "content")) {
         traversenodes = iks_child(traversenodes);
         continue;
      }
      if(!strcasecmp(iks_name(traversenodes), "transport")) {
         traversenodes = iks_child(traversenodes);
         continue;
      }

      if(!strcasecmp(iks_name(traversenodes), "candidate")) {
         newcandidate = ast_calloc(1, sizeof(*newcandidate));
         if (!newcandidate)
            return 0;
         ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "ip"), sizeof(newcandidate->ip));
         newcandidate->port = atoi(iks_find_attrib(traversenodes, "port"));
         ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "pwd"), sizeof(newcandidate->password));
         if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp"))
            newcandidate->protocol = AJI_PROTOCOL_UDP;
         else if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp"))
            newcandidate->protocol = AJI_PROTOCOL_SSLTCP;
         
         if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "host"))
            newcandidate->type = AJI_CONNECT_HOST;
         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "prflx"))
            newcandidate->type = AJI_CONNECT_PRFLX;
         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay"))
            newcandidate->type = AJI_CONNECT_RELAY;
         else if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "srflx"))
            newcandidate->type = AJI_CONNECT_SRFLX;

         newcandidate->network = atoi(iks_find_attrib(traversenodes, "network"));
         newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation"));
         newcandidate->next = NULL;
      
         newcandidate->next = p->theircandidates;
         p->theircandidates = newcandidate;
         p->laststun = 0;
         jingle_update_stun(p->parent, p);
         newcandidate = NULL;
      }
      traversenodes = iks_next(traversenodes);
   }
   
   receipt = iks_new("iq");
   iks_insert_attrib(receipt, "type", "result");
   iks_insert_attrib(receipt, "from", c->jid->full);
   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 jingle_pvt * jingle_alloc	(	struct jingle *	client,
		const char *	from,
		const char *	sid
	)		[static, read]

Definition at line 741 of file chan_jingle.c.

References ast_calloc, ast_copy_string(), ast_debug, ast_free, ast_log(), ast_mutex_init(), ast_mutex_lock(), ast_mutex_unlock(), ast_random(), ast_rtp_new_with_bindaddr(), ASTOBJ_CONTAINER_FIND, aji_client::buddies, jingle::buddy, aji_resource::cap, jingle::connection, jingle_pvt::exten, jingle_pvt::initiator, aji_version::jingle, jinglelock, jingle_pvt::lock, LOG_ERROR, LOG_WARNING, jingle::name, jingle_pvt::next, aji_resource::next, jingle::p, jingle_pvt::parent, jingle::prefs, jingle_pvt::prefs, aji_resource::resource, aji_buddy::resources, jingle_pvt::rtp, jingle_pvt::sid, and jingle_pvt::them.

Referenced by jingle_newcall(), and jingle_request().

{
   struct jingle_pvt *tmp = NULL;
   struct aji_resource *resources = NULL;
   struct aji_buddy *buddy;
   char idroster[200];

   ast_debug(1, "The client is %s for alloc\n", client->name);
   if (!sid && !strchr(from, '/')) {   /* I started call! */
      if (!strcasecmp(client->name, "guest")) {
         buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from);
         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", from, resources->resource);
      else {
         ast_log(LOG_ERROR, "no jingle capable clients to talk to.\n");
         return NULL;
      }
   }
   if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
      return NULL;
   }

   memcpy(&tmp->prefs, &client->prefs, sizeof(tmp->prefs));

   if (sid) {
      ast_copy_string(tmp->sid, sid, sizeof(tmp->sid));
      ast_copy_string(tmp->them, from, sizeof(tmp->them));
   } else {
      snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random());
      ast_copy_string(tmp->them, idroster, sizeof(tmp->them));
      tmp->initiator = 1;
   }
   tmp->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
   tmp->parent = client;
   if (!tmp->rtp) {
      ast_log(LOG_WARNING, "Out of RTP sessions?\n");
      ast_free(tmp);
      return NULL;
   }
   ast_copy_string(tmp->exten, "s", sizeof(tmp->exten));
   ast_mutex_init(&tmp->lock);
   ast_mutex_lock(&jinglelock);
   tmp->next = client->p;
   client->p = tmp;
   ast_mutex_unlock(&jinglelock);
   return tmp;
}

static int jingle_answer

(

struct ast_channel *

ast

)

[static]

Definition at line 389 of file chan_jingle.c.

References ast_debug, ast_mutex_lock(), ast_mutex_unlock(), jingle_accept_call(), jingle_pvt::lock, jingle_pvt::parent, and ast_channel::tech_pvt.

{
   struct jingle_pvt *p = ast->tech_pvt;
   struct jingle *client = p->parent;
   int res = 0;

   ast_debug(1, "Answer!\n");
   ast_mutex_lock(&p->lock);
   jingle_accept_call(client, p);
   ast_mutex_unlock(&p->lock);
   return res;
}

static int jingle_call	(	struct ast_channel *	ast,
		char *	dest,
		int	timeout
	)		[static]

Initiate new call, part of PBX interface dest is the dial string.

Definition at line 1424 of file chan_jingle.c.

References ast_channel::_state, ast_copy_string(), ast_log(), ast_setstate(), AST_STATE_DOWN, AST_STATE_RESERVED, AST_STATE_RING, jingle_pvt::capability, jingle::connection, aji_client::f, jingle_create_candidates(), jingle_ringing_ack(), jingle_transmit_invite(), jingle_pvt::jointcapability, LOG_WARNING, aji_client::mid, ast_channel::name, jingle_pvt::parent, jingle_pvt::ring, jingle_pvt::ringrule, jingle_pvt::sid, ast_channel::tech_pvt, and jingle_pvt::them.

{
   struct jingle_pvt *p = ast->tech_pvt;

   if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
      ast_log(LOG_WARNING, "jingle_call called on %s, neither down nor reserved\n", ast->name);
      return -1;
   }

   ast_setstate(ast, AST_STATE_RING);
   p->jointcapability = p->capability;
   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, jingle_ringing_ack, p,
                     IKS_RULE_ID, p->ring, IKS_RULE_DONE);
   } else
      ast_log(LOG_WARNING, "Whoa, already have a ring rule!\n");

   jingle_transmit_invite(p);
   jingle_create_candidates(p->parent, p, p->sid, p->them);

   return 0;
}

static int jingle_create_candidates	(	struct jingle *	client,
		struct jingle_pvt *	p,
		char *	sid,
		char *	from
	)		[static]

Definition at line 583 of file chan_jingle.c.

References __ourip, AJI_CONNECT_HOST, AJI_CONNECT_PRFLX, AJI_CONNECT_RELAY, AJI_CONNECT_SRFLX, AJI_PROTOCOL_SSLTCP, AJI_PROTOCOL_UDP, ast_aji_increment_mid(), ast_aji_send(), ast_calloc, ast_copy_string(), ast_find_ourip(), ast_free, ast_inet_ntoa(), ast_log(), ast_random(), ast_rtp_get_us(), ast_strlen_zero(), jingle_candidate::component, jingle::connection, jingle_candidate::foundation, jingle_candidate::generation, inet_aton(), jingle_pvt::initiator, jingle_candidate::ip, aji_client::jid, JINGLE_ICE_UDP_NS, JINGLE_NEGOTIATE, JINGLE_NODE, JINGLE_NS, JINGLE_SID, jingle_pvt::laststun, LOG_ERROR, LOG_NOTICE, LOG_WARNING, aji_client::mid, jingle_candidate::network, jingle_candidate::next, jingle_pvt::next, jingle_pvt::ourcandidates, pass, jingle_candidate::password, jingle_candidate::port, jingle_candidate::priority, jingle_candidate::protocol, jingle_pvt::rtp, jingle_pvt::sid, jingle_candidate::type, and jingle_candidate::ufrag.

Referenced by jingle_call(), and jingle_newcall().

{
   struct jingle_candidate *tmp;
   struct aji_client *c = client->connection;
   struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
   struct sockaddr_in sin;
   struct sockaddr_in dest;
   struct in_addr us;
   struct in_addr externaddr;
   iks *iq, *jingle, *content, *transport, *candidate;
   char component[16], foundation[16], generation[16], network[16], pass[16], port[7], priority[16], user[16];


   iq = iks_new("iq");
   jingle = iks_new(JINGLE_NODE);
   content = iks_new("content");
   transport = iks_new("transport");
   candidate = iks_new("candidate");
   if (!iq || !jingle || !content || !transport || !candidate) {
      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_node(iq, jingle);
   iks_insert_node(jingle, content);
   iks_insert_node(content, 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 jingle session - SID %s!\n", sid);
      goto safeout;
   }

   ast_rtp_get_us(p->rtp, &sin);
   ast_find_ourip(&us, bindaddr);

   /* Setup our first jingle candidate */
   ours1->component = 1;
   ours1->foundation = (unsigned int)bindaddr.sin_addr.s_addr | AJI_CONNECT_HOST | AJI_PROTOCOL_UDP;
   ours1->generation = 0;
   ast_copy_string(ours1->ip, ast_inet_ntoa(us), sizeof(ours1->ip));
   ours1->network = 0;
   ours1->port = ntohs(sin.sin_port);
   ours1->priority = 1678246398;
   ours1->protocol = AJI_PROTOCOL_UDP;
   snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
   ast_copy_string(ours1->password, pass, sizeof(ours1->password));
   ours1->type = AJI_CONNECT_HOST;
   snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
   ast_copy_string(ours1->ufrag, user, sizeof(ours1->ufrag));
   p->ourcandidates = ours1;

   if (!ast_strlen_zero(externip)) {
      /* XXX We should really stun for this one not just go with externip XXX */
      if (inet_aton(externip, &externaddr))
         ast_log(LOG_WARNING, "Invalid extern IP : %s\n", externip);

      ours2->component = 1;
      ours2->foundation = (unsigned int)externaddr.s_addr | AJI_CONNECT_PRFLX | AJI_PROTOCOL_UDP;
      ours2->generation = 0;
      ast_copy_string(ours2->ip, externip, sizeof(ours2->ip));
      ours2->network = 0;
      ours2->port = ntohs(sin.sin_port);
      ours2->priority = 1678246397;
      ours2->protocol = AJI_PROTOCOL_UDP;
      snprintf(pass, sizeof(pass), "%08lx%08lx", ast_random(), ast_random());
      ast_copy_string(ours2->password, pass, sizeof(ours2->password));
      ours2->type = AJI_CONNECT_PRFLX;

      snprintf(user, sizeof(user), "%08lx%08lx", ast_random(), ast_random());
      ast_copy_string(ours2->ufrag, user, sizeof(ours2->ufrag));
      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(component, sizeof(component), "%u", tmp->component);
      snprintf(foundation, sizeof(foundation), "%u", tmp->foundation);
      snprintf(generation, sizeof(generation), "%u", tmp->generation);
      snprintf(network, sizeof(network), "%u", tmp->network);
      snprintf(port, sizeof(port), "%u", tmp->port);
      snprintf(priority, sizeof(priority), "%u", tmp->priority);

      iks_insert_attrib(iq, "from", c->jid->full);
      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(jingle, "action", JINGLE_NEGOTIATE);
      iks_insert_attrib(jingle, JINGLE_SID, sid);
      iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from);
      iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
      iks_insert_attrib(content, "creator", p->initiator ? "initiator" : "responder");
      iks_insert_attrib(content, "name", "asterisk-audio-content");
      iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
      iks_insert_attrib(candidate, "component", component);
      iks_insert_attrib(candidate, "foundation", foundation);
      iks_insert_attrib(candidate, "generation", generation);
      iks_insert_attrib(candidate, "ip", tmp->ip);
      iks_insert_attrib(candidate, "network", network);
      iks_insert_attrib(candidate, "port", port);
      iks_insert_attrib(candidate, "priority", priority);
      switch (tmp->protocol) {
      case AJI_PROTOCOL_UDP:
         iks_insert_attrib(candidate, "protocol", "udp");
         break;
      case AJI_PROTOCOL_SSLTCP:
         iks_insert_attrib(candidate, "protocol", "ssltcp");
         break;
      }
      iks_insert_attrib(candidate, "pwd", tmp->password);
      switch (tmp->type) {
      case AJI_CONNECT_HOST:
         iks_insert_attrib(candidate, "type", "host");
         break;
      case AJI_CONNECT_PRFLX:
         iks_insert_attrib(candidate, "type", "prflx");
         break;
      case AJI_CONNECT_RELAY:
         iks_insert_attrib(candidate, "type", "relay");
         break;
      case AJI_CONNECT_SRFLX:
         iks_insert_attrib(candidate, "type", "srflx");
         break;
      }
      iks_insert_attrib(candidate, "ufrag", tmp->ufrag);

      ast_aji_send(c, iq);
   }
   p->laststun = 0;

safeout:
   if (ours1)
      ast_free(ours1);
   if (ours2)
      ast_free(ours2);
   iks_delete(iq);
   iks_delete(jingle);
   iks_delete(content);
   iks_delete(transport);
   iks_delete(candidate);

   return 1;
}

static int jingle_create_member	(	char *	label,
		struct ast_variable *	var,
		int	allowguest,
		struct ast_codec_pref	prefs,
		char *	context,
		struct jingle *	member
	)		[static]

Definition at line 1666 of file chan_jingle.c.

References aji_client::allowguest, jingle::allowguest, ast_aji_get_client(), ast_copy_string(), ast_log(), ast_parse_allow_disallow(), ASTOBJ_CONTAINER_FIND, aji_client::buddies, jingle::buddy, jingle::capability, jingle::connection, jingle::context, aji_client::f, JINGLE_NS, jingle_parser(), LOG_ERROR, LOG_WARNING, ast_variable::name, jingle::name, ast_variable::next, jingle_candidate::next, prefs, jingle::prefs, jingle::user, and ast_variable::value.

Referenced by jingle_load_config().

{
   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 jingle_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));
#if 0
      else if (!strcasecmp(var->name, "candidate")) {
         candidate = jingle_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, jingle_parser, member,
                      IKS_RULE_TYPE, IKS_PAK_IQ,
                      IKS_RULE_FROM_PARTIAL, member->user,
                      IKS_RULE_NS, JINGLE_NS,
                      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 jingle_digit	(	struct ast_channel *	ast,
		char	digit,
		unsigned int	duration
	)		[static]

Definition at line 1284 of file chan_jingle.c.

References ast_aji_increment_mid(), ast_aji_send(), AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), jingle::connection, ast_channel::dtmff, ast_frame::frametype, jingle_pvt::initiator, aji_client::jid, JINGLE_DTMF_NS, JINGLE_NS, jingle_pvt::lock, LOG_ERROR, aji_client::mid, jingle_pvt::parent, jingle_pvt::sid, ast_channel::tech_pvt, and jingle_pvt::them.

Referenced by jingle_digit_begin(), and jingle_digit_end().

{
   struct jingle_pvt *p = ast->tech_pvt;
   struct jingle *client = p->parent;
   iks *iq, *jingle, *dtmf;
   char buffer[2] = {digit, '\0'};
   iq = iks_new("iq");
   jingle = iks_new("jingle");
   dtmf = iks_new("dtmf");
   if(!iq || !jingle || !dtmf) {
      iks_delete(iq);
      iks_delete(jingle);
      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", client->connection->jid->full);
   iks_insert_attrib(iq, "id", client->connection->mid);
   ast_aji_increment_mid(client->connection->mid);
   iks_insert_attrib(jingle, "xmlns", JINGLE_NS);
   iks_insert_attrib(jingle, "action", "session-info");
   iks_insert_attrib(jingle, "initiator", p->initiator ? client->connection->jid->full : p->them);
   iks_insert_attrib(jingle, "sid", p->sid);
   iks_insert_attrib(dtmf, "xmlns", JINGLE_DTMF_NS);
   iks_insert_attrib(dtmf, "code", buffer);
   iks_insert_node(iq, jingle);
   iks_insert_node(jingle, 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(jingle);
   iks_delete(dtmf);
   ast_mutex_unlock(&p->lock);
   return 0;
}

static int jingle_digit_begin	(	struct ast_channel *	ast,
		char	digit
	)		[static]

Definition at line 1330 of file chan_jingle.c.

References jingle_digit().

{
   return jingle_digit(chan, digit, 0);
}

static int jingle_digit_end	(	struct ast_channel *	ast,
		char	digit,
		unsigned int	duration
	)		[static]

Definition at line 1335 of file chan_jingle.c.

References jingle_digit().

{
   return jingle_digit(ast, digit, duration);
}

static char * jingle_do_reload	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)		[static]

CLI command "jingle reload".

Definition at line 1577 of file chan_jingle.c.

References CLI_GENERATE, CLI_INIT, CLI_SUCCESS, ast_cli_entry::command, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "jingle reload";
      e->usage =
         "Usage: jingle reload\n"
         "       Reload jingle channel driver.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }  
   
   return CLI_SUCCESS;
}

static int jingle_fixup	(	struct ast_channel *	oldchan,
		struct ast_channel *	newchan
	)		[static]

Definition at line 1250 of file chan_jingle.c.

References ast_mutex_lock(), ast_mutex_unlock(), jingle_pvt::lock, jingle_pvt::owner, and ast_channel::tech_pvt.

{
   struct jingle_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 void jingle_free_candidates

(

struct jingle_candidate *

candidate

)

[static]

Definition at line 916 of file chan_jingle.c.

References ast_free, last, and jingle_candidate::next.

Referenced by jingle_free_pvt(), and jingle_load_config().

{
   struct jingle_candidate *last;
   while (candidate) {
      last = candidate;
      candidate = candidate->next;
      ast_free(last);
   }
}

static void jingle_free_pvt	(	struct jingle *	client,
		struct jingle_pvt *	p
	)		[static]

Definition at line 926 of file chan_jingle.c.

References ast_free, ast_log(), ast_rtp_destroy(), jingle::connection, aji_client::f, jingle_free_candidates(), LOG_WARNING, jingle_pvt::next, jingle_pvt::owner, jingle::p, jingle_pvt::parent, jingle_pvt::ringrule, jingle_pvt::rtp, jingle_pvt::theircandidates, and jingle_pvt::vrtp.

Referenced by jingle_hangup(), and jingle_newcall().

{
   struct jingle_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_destroy(p->rtp);
   if (p->vrtp)
      ast_rtp_destroy(p->vrtp);
   jingle_free_candidates(p->theircandidates);
   ast_free(p);
}

static int jingle_get_codec

(

struct ast_channel *

chan

)

[static]

Definition at line 420 of file chan_jingle.c.

References jingle_pvt::peercapability, and ast_channel::tech_pvt.

{
   struct jingle_pvt *p = chan->tech_pvt;
   return p->peercapability;
}

static enum ast_rtp_get_result jingle_get_rtp_peer	(	struct ast_channel *	chan,
		struct ast_rtp **	rtp
	)		[static]

Definition at line 402 of file chan_jingle.c.

References ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_GET_FAILED, AST_RTP_TRY_PARTIAL, jingle_pvt::lock, jingle_pvt::rtp, and ast_channel::tech_pvt.

{
   struct jingle_pvt *p = chan->tech_pvt;
   enum ast_rtp_get_result res = AST_RTP_GET_FAILED;

   if (!p)
      return res;

   ast_mutex_lock(&p->lock);
   if (p->rtp) {
      *rtp = p->rtp;
      res = AST_RTP_TRY_PARTIAL;
   }
   ast_mutex_unlock(&p->lock);

   return res;
}

static int jingle_handle_dtmf	(	struct jingle *	client,
		ikspak *	pak
	)		[static]

Definition at line 498 of file chan_jingle.c.

References AST_FRAME_DTMF, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_log(), ast_queue_frame(), ast_verbose(), JINGLE_NODE, jingle_response(), JINGLE_SID, LOG_NOTICE, jingle_pvt::next, jingle_pvt::owner, jingle::p, jingle_pvt::sid, and ast_frame::subclass.

Referenced by jingle_parser().

{
   struct jingle_pvt *tmp;
   iks *dtmfnode = NULL, *dtmfchild = NULL;
   char *dtmf;
   /* Make sure our new call doesn't exist yet */
   for (tmp = client->p; tmp; tmp = tmp->next) {
      if (iks_find_with_attrib(pak->x, JINGLE_NODE, JINGLE_SID, tmp->sid))
         break;
   }

   if (tmp) {
      if(iks_find_with_attrib(pak->x, "dtmf-method", "method", "rtp")) {
         jingle_response(client,pak,
               "feature-not-implemented xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'",
               "unsupported-dtmf-method xmlns='http://www.xmpp.org/extensions/xep-0181.html#ns-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("JINGLE! 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("JINGLE! 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("JINGLE! DTMF-relay event received: %c\n", f.subclass);
            }
         }
      } else if ((dtmfnode = iks_find_with_attrib(pak->x, JINGLE_NODE, "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("JINGLE! 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("JINGLE! DTMF-relay event received: %c\n", f.subclass);
               }
            }
         }
      }
      jingle_response(client, pak, NULL, NULL);
      return 1;
   } else
      ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");

   jingle_response(client, pak, NULL, NULL);
   return 1;
}

static int jingle_hangup

(

struct ast_channel *

ast

)

[static]

Hangup a call through the jingle proxy channel.

Definition at line 1449 of file chan_jingle.c.

References jingle_pvt::alreadygone, ast_mutex_lock(), ast_mutex_unlock(), jingle_action(), jingle_free_pvt(), JINGLE_TERMINATE, jingle_pvt::lock, jingle_pvt::owner, jingle_pvt::parent, and ast_channel::tech_pvt.

{
   struct jingle_pvt *p = ast->tech_pvt;
   struct jingle *client;

   ast_mutex_lock(&p->lock);
   client = p->parent;
   p->owner = NULL;
   ast->tech_pvt = NULL;
   if (!p->alreadygone)
      jingle_action(client, p, JINGLE_TERMINATE);
   ast_mutex_unlock(&p->lock);

   jingle_free_pvt(client, p);

   return 0;
}

static int jingle_hangup_farend	(	struct jingle *	client,
		ikspak *	pak
	)		[static]

Definition at line 562 of file chan_jingle.c.

References jingle_pvt::alreadygone, ast_debug, ast_log(), ast_queue_hangup(), JINGLE_NODE, jingle_response(), JINGLE_SID, LOG_NOTICE, jingle::name, jingle_pvt::next, jingle_pvt::owner, jingle::p, and jingle_pvt::sid.

Referenced by jingle_parser().

{
   struct jingle_pvt *tmp;

   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, JINGLE_NODE, JINGLE_SID, tmp->sid))
         break;
   }

   if (tmp) {
      tmp->alreadygone = 1;
      if (tmp->owner)
         ast_queue_hangup(tmp->owner);
   } else
      ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
   jingle_response(client, pak, NULL, NULL);
   return 1;
}

static int jingle_indicate	(	struct ast_channel *	ast,
		int	condition,
		const void *	data,
		size_t	datalen
	)		[static]

Definition at line 1265 of file chan_jingle.c.

References AST_CONTROL_HOLD, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), and LOG_NOTICE.

{
   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 jingle_is_answered	(	struct jingle *	client,
		ikspak *	pak
	)		[static]

Definition at line 478 of file chan_jingle.c.

References AST_CONTROL_ANSWER, ast_debug, ast_log(), ast_queue_control(), JINGLE_NODE, jingle_response(), JINGLE_SID, LOG_NOTICE, jingle::name, jingle_pvt::next, jingle_pvt::owner, jingle::p, and jingle_pvt::sid.

Referenced by jingle_parser().

{
   struct jingle_pvt *tmp;

   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, JINGLE_NODE, JINGLE_SID, tmp->sid))
         break;
   }

   if (tmp) {
      if (tmp->owner)
         ast_queue_control(tmp->owner, AST_CONTROL_ANSWER);
   } else
      ast_log(LOG_NOTICE, "Whoa, didn't find call!\n");
   jingle_response(client, pak, NULL, NULL);
   return 1;
}

static int jingle_load_config

(

void

)

[static]

Definition at line 1724 of file chan_jingle.c.

References jingle::allowguest, ast_aji_get_clients(), ast_calloc, ast_category_browse(), ast_config_load, ast_copy_string(), ast_gethostbyname(), ast_jb_read_conf(), ast_log(), ast_parse_allow_disallow(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ASTOBJ_CONTAINER_LINK, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_INIT, ASTOBJ_UNLOCK, ASTOBJ_UNREF, ASTOBJ_WRLOCK, jingle::capability, clients, CONFIG_STATUS_FILEINVALID, jingle::connection, jingle::context, context, global_jbconf, hp, JINGLE_CONFIG, jingle_create_member(), JINGLE_DTMF_NS, jingle_free_candidates(), jingle_list, jingle_member_destroy(), JINGLE_NS, jingle_parser(), LOG_WARNING, jingle::name, ast_variable::name, ast_variable::next, jingle::parkinglot, prefs, jingle::prefs, jingle::user, ast_variable::value, and var.

Referenced by load_module().

{
   char *cat = NULL;
   struct ast_config *cfg = NULL;
   char context[100];
   int allowguest = 1;
   struct ast_variable *var;
   struct jingle *member;
   struct hostent *hp;
   struct ast_hostent ahp;
   struct ast_codec_pref prefs;
   struct aji_client_container *clients;
   struct jingle_candidate *global_candidates = NULL;
   struct ast_flags config_flags = { 0 };

   cfg = ast_config_load(JINGLE_CONFIG, config_flags);
   if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
      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, "externip"))
         ast_copy_string(externip, var->value, sizeof(externip));
      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 = jingle_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));
            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 = jingle_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, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_NS, IKS_RULE_DONE);
                  iks_filter_add_rule(iterator->f, jingle_parser, member, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_NS, JINGLE_DTMF_NS, IKS_RULE_DONE);
                  ASTOBJ_UNLOCK(member);
                  ASTOBJ_UNLOCK(iterator);
               });
               ASTOBJ_CONTAINER_LINK(&jingle_list, member);
            } else {
               ASTOBJ_UNLOCK(member);
               ASTOBJ_UNREF(member, jingle_member_destroy);
            }
         } else {
            ASTOBJ_UNLOCK(member);
            if (jingle_create_member(cat, var, allowguest, prefs, context, member))
               ASTOBJ_CONTAINER_LINK(&jingle_list, member);
            ASTOBJ_UNREF(member, jingle_member_destroy);
         }
      }
      cat = ast_category_browse(cfg, cat);
   }
   jingle_free_candidates(global_candidates);
   return 1;
}

static void jingle_member_destroy

(

struct jingle *

obj

)

[static]

Definition at line 239 of file chan_jingle.c.

References ast_free.

Referenced by jingle_load_config(), jingle_parser(), and unload_module().

{
   ast_free(obj);
}

static struct ast_channel* jingle_new	(	struct jingle *	client,
		struct jingle_pvt *	i,
		int	state,
		const char *	title
	)		[static, read]

Start new jingle channel.

Definition at line 800 of file chan_jingle.c.

References accountcode, jingle::accountcode, ast_channel::adsicpe, ast_channel::amaflags, jingle::amaflags, AST_ADSI_UNAVAILABLE, ast_best_codec(), AST_CAUSE_SWITCH_CONGESTION, ast_channel_alloc(), ast_channel_set_fd(), ast_codec_choose(), ast_copy_string(), AST_FORMAT_VIDEO_MASK, ast_hangup(), ast_jb_configure(), ast_log(), ast_pbx_start(), ast_random(), ast_rtcp_fd(), ast_rtp_codec_setpref(), ast_rtp_fd(), AST_STATE_DOWN, AST_STATE_RING, ast_strdup, ast_string_field_set, ast_strlen_zero(), jingle::callgroup, ast_channel::callgroup, jingle::callingpres, jingle_pvt::capability, ast_channel::cid, ast_callerid::cid_ani, ast_callerid::cid_dnid, jingle_pvt::cid_name, jingle_pvt::cid_num, ast_callerid::cid_pres, jingle::context, ast_channel::context, jingle_pvt::exten, ast_channel::exten, global_capability, global_jbconf, ast_channel::hangupcause, jingle_tech, jingle_pvt::jointcapability, language, jingle::language, LOG_WARNING, musicclass, jingle::musicclass, ast_channel::name, ast_channel::nativeformats, jingle_pvt::owner, jingle::pickupgroup, ast_channel::pickupgroup, jingle_pvt::prefs, ast_channel::priority, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, ast_channel::rings, jingle_pvt::rtp, str, ast_channel::tech, ast_channel::tech_pvt, jingle_pvt::them, jingle_pvt::vrtp, and ast_channel::writeformat.

Referenced by jingle_newcall(), and jingle_request().

{
   struct ast_channel *tmp;
   int fmt;
   int what;
   const char *str;

   if (title)
      str = title;
   else
      str = i->them;
   tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "", "", "", 0, "Jingle/%s-%04lx", str, ast_random() & 0xffff);
   if (!tmp) {
      ast_log(LOG_WARNING, "Unable to allocate Jingle channel structure!\n");
      return NULL;
   }
   tmp->tech = &jingle_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_codec_setpref(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_channel_set_fd(tmp, 0, ast_rtp_fd(i->rtp));
      ast_channel_set_fd(tmp, 1, ast_rtcp_fd(i->rtp));
   }
   if (i->vrtp) {
      ast_channel_set_fd(tmp, 2, ast_rtp_fd(i->vrtp));
      ast_channel_set_fd(tmp, 3, ast_rtcp_fd(i->vrtp));
   }
   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);
   i->owner = tmp;
   ast_copy_string(tmp->context, client->context, sizeof(tmp->context));
   ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten));
   /* Don't use ast_set_callerid() here because it will
    * generate an unnecessary NewCallerID event  */
   tmp->cid.cid_ani = ast_strdup(i->cid_num);
   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;
   }

   return tmp;
}

static int jingle_newcall	(	struct jingle *	client,
		ikspak *	pak
	)		[static]

Definition at line 954 of file chan_jingle.c.

References ast_aji_get_client(), ast_copy_string(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_PBX_CALL_LIMIT, AST_PBX_FAILED, ast_pbx_start(), AST_PBX_SUCCESS, ast_rtp_set_m_type(), ast_rtp_set_rtpmap_type(), ast_setstate(), AST_STATE_DOWN, AST_STATE_RING, jingle_pvt::audio_content_name, chan, jingle::connection, description, aji_client::jid, jingle_alloc(), JINGLE_AUDIO_RTP_NS, jingle_create_candidates(), jingle_free_pvt(), jingle_new(), JINGLE_NODE, jingle_response(), JINGLE_SID, JINGLE_VIDEO_RTP_NS, jingle_pvt::lock, LOG_ERROR, LOG_NOTICE, LOG_WARNING, jingle::name, jingle_pvt::next, jingle::p, jingle_pvt::rtp, jingle_pvt::sid, jingle_pvt::them, and jingle_pvt::video_content_name.

Referenced by jingle_parser().

{
   struct jingle_pvt *p, *tmp = client->p;
   struct ast_channel *chan;
   int res;
   iks *codec, *content, *description;
   char *from = NULL;

   /* 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, JINGLE_NODE, JINGLE_SID, tmp->sid)) {
         ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid);
         jingle_response(client, 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 = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, JINGLE_SID));
   if (!p) {
      ast_log(LOG_WARNING, "Unable to allocate jingle structure!\n");
      return -1;
   }
   chan = jingle_new(client, p, AST_STATE_DOWN, pak->from->user);
   if (!chan) {
      jingle_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, JINGLE_SID)) {
      ast_copy_string(p->sid, iks_find_attrib(pak->query, JINGLE_SID),
            sizeof(p->sid));
   }
   
   /* content points to the first <content/> tag */   
   content = iks_child(iks_child(pak->x));
   while (content) {
      description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_AUDIO_RTP_NS);
      if (description) {
         /* audio content found */
         codec = iks_child(iks_child(content));
              ast_copy_string(p->audio_content_name, iks_find_attrib(content, "name"), sizeof(p->audio_content_name));

         while (codec) {
            ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
            ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
            codec = iks_next(codec);
         }
      }
      
      description = NULL;
      codec = NULL;

      description = iks_find_with_attrib(content, "description", "xmlns", JINGLE_VIDEO_RTP_NS);
      if (description) {
         /* video content found */
         codec = iks_child(iks_child(content));
              ast_copy_string(p->video_content_name, iks_find_attrib(content, "name"), sizeof(p->video_content_name));

         while (codec) {
            ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id")));
            ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", iks_find_attrib(codec, "name"), 0);
            codec = iks_next(codec);
         }
      }
      
      content = iks_next(content);
   }

   ast_mutex_unlock(&p->lock);
   ast_setstate(chan, AST_STATE_RING);
   res = ast_pbx_start(chan);
   
   switch (res) {
   case AST_PBX_FAILED:
      ast_log(LOG_WARNING, "Failed to start PBX :(\n");
      jingle_response(client, pak, "service-unavailable", NULL);
      break;
   case AST_PBX_CALL_LIMIT:
      ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n");
      jingle_response(client, pak, "service-unavailable", NULL);
      break;
   case AST_PBX_SUCCESS:
      jingle_response(client, pak, NULL, NULL);
      jingle_create_candidates(client, p,
                iks_find_attrib(pak->query, JINGLE_SID),
                iks_find_attrib(pak->x, "from"));
      /* nothing to do */
      break;
   }

   return 1;
}

static int jingle_parser	(	void *	data,
		ikspak *	pak
	)		[static]

Definition at line 1593 of file chan_jingle.c.

References ast_debug, ast_log(), ASTOBJ_REF, ASTOBJ_UNREF, JINGLE_ACCEPT, jingle_add_candidate(), jingle_handle_dtmf(), jingle_hangup_farend(), JINGLE_INFO, JINGLE_INITIATE, jingle_is_answered(), jingle_member_destroy(), JINGLE_NEGOTIATE, jingle_newcall(), JINGLE_NODE, JINGLE_TERMINATE, and LOG_NOTICE.

Referenced by jingle_create_member(), and jingle_load_config().

{
   struct jingle *client = ASTOBJ_REF((struct jingle *) data);
   ast_log(LOG_NOTICE, "Filter matched\n");

   if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INITIATE)) {
      /* New call */
      jingle_newcall(client, pak);
   } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_NEGOTIATE)) {
      ast_debug(3, "About to add candidate!\n");
      jingle_add_candidate(client, pak);
      ast_debug(3, "Candidate Added!\n");
   } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_ACCEPT)) {
      jingle_is_answered(client, pak);
   } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_INFO)) {
      jingle_handle_dtmf(client, pak);
   } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", JINGLE_TERMINATE)) {
      jingle_hangup_farend(client, pak);
   } else if (iks_find_with_attrib(pak->x, JINGLE_NODE, "action", "reject")) {
      jingle_hangup_farend(client, pak);
   }
   ASTOBJ_UNREF(client, jingle_member_destroy);
   return IKS_FILTER_EAT;
}

static struct ast_frame * jingle_read

(

struct ast_channel *

ast

)

[static, read]

Definition at line 1195 of file chan_jingle.c.

References ast_mutex_lock(), ast_mutex_unlock(), jingle_rtp_read(), jingle_pvt::lock, and ast_channel::tech_pvt.

{
   struct ast_frame *fr;
   struct jingle_pvt *p = ast->tech_pvt;

   ast_mutex_lock(&p->lock);
   fr = jingle_rtp_read(ast, p);
   ast_mutex_unlock(&p->lock);
   return fr;
}

static struct ast_channel * jingle_request	(	const char *	type,
		int	format,
		void *	data,
		int *	cause
	)		[static, read]

Part of PBX interface.

Definition at line 1468 of file chan_jingle.c.

References ast_aji_get_client(), ast_log(), AST_STATE_DOWN, ast_strdupa, ASTOBJ_UNLOCK, ASTOBJ_WRLOCK, chan, jingle::connection, find_jingle(), jingle_alloc(), jingle_new(), LOG_ERROR, LOG_WARNING, jingle::name, s, and strsep().

{
   struct jingle_pvt *p = NULL;
   struct jingle *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 Jingle Dialstring: %s\n", (char*) data);
            return NULL;
         }
      }
   }

   client = find_jingle(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);
         return NULL;
      }
   }
       
   ASTOBJ_WRLOCK(client);
   p = jingle_alloc(client, to, NULL);
   if (p)
      chan = jingle_new(client, p, AST_STATE_DOWN, to);
   ASTOBJ_UNLOCK(client);

   return chan;
}

static int jingle_response	(	struct jingle *	client,
		ikspak *	pak,
		const char *	reasonstr,
		const char *	reasonstr2
	)		[static]

Definition at line 446 of file chan_jingle.c.

References ast_aji_send(), jingle::connection, and aji_client::jid.

Referenced by jingle_handle_dtmf(), jingle_hangup_farend(), jingle_is_answered(), and jingle_newcall().

{
   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", client->connection->jid->full);
      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 jingle_ringing_ack	(	void *	data,
		ikspak *	pak
	)		[static]

Definition at line 377 of file chan_jingle.c.

References AST_CONTROL_RINGING, ast_queue_control(), jingle::connection, aji_client::f, jingle_pvt::owner, jingle_pvt::parent, and jingle_pvt::ringrule.

Referenced by jingle_call().

{
   struct jingle_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 struct ast_frame* jingle_rtp_read	(	struct ast_channel *	ast,
		struct jingle_pvt *	p
	)		[static, read]

Definition at line 1167 of file chan_jingle.c.

References ast_debug, AST_FORMAT_AUDIO_MASK, AST_FORMAT_VIDEO_MASK, AST_FRAME_VOICE, ast_null_frame, ast_rtp_read(), ast_set_read_format(), ast_set_write_format(), f, ast_frame::frametype, jingle_update_stun(), ast_channel::nativeformats, jingle_pvt::owner, jingle_pvt::parent, ast_channel::readformat, jingle_pvt::rtp, ast_frame::subclass, and ast_channel::writeformat.

Referenced by jingle_read().

{
   struct ast_frame *f;

   if (!p->rtp)
      return &ast_null_frame;
   f = ast_rtp_read(p->rtp);
   jingle_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 (f && (f->frametype == AST_FRAME_DTMF))
               ast_debug(1, "* Detected inband DTMF '%c'\n", f->subclass);
              } */
      }
   }
   return f;
}

static int jingle_sendhtml	(	struct ast_channel *	ast,
		int	subclass,
		const char *	data,
		int	datalen
	)		[static]

Definition at line 1340 of file chan_jingle.c.

References ast_log(), and LOG_NOTICE.

{
   ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");

   return -1;
}

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
	)		[static]

Definition at line 426 of file chan_jingle.c.

References ast_mutex_lock(), ast_mutex_unlock(), jingle_pvt::lock, and ast_channel::tech_pvt.

{
   struct jingle_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 char * jingle_show_channels	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)		[static]

CLI command "jingle show channels".

Definition at line 1513 of file chan_jingle.c.

References AJI_MAX_JIDLEN, ast_cli_args::argc, ast_cli(), ast_copy_string(), ast_getformatname(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_UNLOCK, ASTOBJ_WRLOCK, chan, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, FORMAT, jingle_list, jinglelock, LOG_WARNING, ast_channel::name, jingle_pvt::next, jingle_pvt::owner, ast_channel::readformat, jingle_pvt::them, ast_cli_entry::usage, and ast_channel::writeformat.

{
#define FORMAT  "%-30.30s  %-30.30s  %-15.15s  %-5.5s %-5.5s \n"
   struct jingle_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 = "jingle show channels";
      e->usage =
         "Usage: jingle show channels\n"
         "       Shows current state of the Jingle channels.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 3)
      return CLI_SHOWUSAGE;

   ast_mutex_lock(&jinglelock);
   ast_cli(a->fd, FORMAT, "Channel", "Jabber ID", "Resource", "Read", "Write");
   ASTOBJ_CONTAINER_TRAVERSE(&jingle_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(&jinglelock);

   ast_cli(a->fd, "%d active jingle channel%s\n", numchans, (numchans != 1) ? "s" : "");
   return CLI_SUCCESS;
#undef FORMAT
}

static int jingle_transmit_invite

(

struct jingle_pvt *

p

)

[static]

Definition at line 1346 of file chan_jingle.c.

References ast_aji_increment_mid(), ast_aji_send(), ast_copy_string(), jingle_pvt::audio_content_name, jingle::connection, description, aji_client::jid, aji_client::jingle, JINGLE_AUDIO_RTP_NS, JINGLE_ICE_UDP_NS, JINGLE_INITIATE, JINGLE_NODE, JINGLE_NS, JINGLE_SID, aji_client::mid, jingle_pvt::parent, jingle_pvt::sid, and jingle_pvt::them.

Referenced by jingle_call().

{
   struct jingle *aux = NULL;
   struct aji_client *client = NULL;
   iks *iq, *jingle, *content, *description, *transport;
   iks *payload_eg711u, *payload_pcmu;

   aux = p->parent;
   client = aux->connection;
   iq = iks_new("iq");
   jingle = iks_new(JINGLE_NODE);
   content = iks_new("content");
   description = iks_new("description");
   transport = iks_new("transport");
   payload_pcmu = iks_new("payload-type");
   payload_eg711u = iks_new("payload-type");

   ast_copy_string(p->audio_content_name, "asterisk-audio-content", sizeof(p->audio_content_name));

   iks_insert_attrib(iq, "type", "set");
   iks_insert_attrib(iq, "to", p->them);
   iks_insert_attrib(iq, "from", client->jid->full);
   iks_insert_attrib(iq, "id", client->mid);
   ast_aji_increment_mid(client->mid);
   iks_insert_attrib(jingle, "action", JINGLE_INITIATE);
   iks_insert_attrib(jingle, JINGLE_SID, p->sid);
   iks_insert_attrib(jingle, "initiator", client->jid->full);
   iks_insert_attrib(jingle, "xmlns", JINGLE_NS);

   /* For now, we only send one audio based content */
   iks_insert_attrib(content, "creator", "initiator");
   iks_insert_attrib(content, "name", p->audio_content_name);
   iks_insert_attrib(content, "profile", "RTP/AVP");
   iks_insert_attrib(description, "xmlns", JINGLE_AUDIO_RTP_NS);
   iks_insert_attrib(transport, "xmlns", JINGLE_ICE_UDP_NS);
   iks_insert_attrib(payload_pcmu, "id", "0");
   iks_insert_attrib(payload_pcmu, "name", "PCMU");
   iks_insert_attrib(payload_eg711u, "id", "100");
   iks_insert_attrib(payload_eg711u, "name", "EG711U");
   iks_insert_node(description, payload_pcmu);
   iks_insert_node(description, payload_eg711u);
   iks_insert_node(content, description);
   iks_insert_node(content, transport);
   iks_insert_node(jingle, content);
   iks_insert_node(iq, jingle);

   ast_aji_send(client, iq);

   iks_delete(iq);
   iks_delete(jingle);
   iks_delete(content);
   iks_delete(description);
   iks_delete(transport);
   iks_delete(payload_eg711u);
   iks_delete(payload_pcmu);
   return 0;
}

static int jingle_update_stun	(	struct jingle *	client,
		struct jingle_pvt *	p
	)		[static]

Definition at line 1063 of file chan_jingle.c.

References ast_gethostbyname(), ast_rtp_stun_request(), hp, jingle_candidate::ip, jingle_pvt::laststun, jingle_candidate::next, jingle_pvt::ourcandidates, jingle_candidate::port, jingle_pvt::rtp, jingle_pvt::theircandidates, and jingle_candidate::ufrag.

Referenced by jingle_add_candidate(), and jingle_rtp_read().

{
   struct jingle_candidate *tmp;
   struct hostent *hp;
   struct ast_hostent ahp;
   struct sockaddr_in sin;

   if (time(NULL) == p->laststun)
      return 0;

   tmp = p->theircandidates;
   p->laststun = time(NULL);
   while (tmp) {
      char username[256];
      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->ufrag, p->ourcandidates->ufrag);

      ast_rtp_stun_request(p->rtp, &sin, username);
      tmp = tmp->next;
   }
   return 1;
}

static int jingle_write	(	struct ast_channel *	ast,
		struct ast_frame *	f
	)		[static]

Send frame to media channel (rtp)

Definition at line 1207 of file chan_jingle.c.

References AST_FRAME_IMAGE, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_write(), ast_frame::frametype, jingle_pvt::lock, LOG_WARNING, ast_channel::nativeformats, ast_channel::readformat, jingle_pvt::rtp, ast_frame::subclass, ast_channel::tech_pvt, jingle_pvt::vrtp, and ast_channel::writeformat.

{
   struct jingle_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_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_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 Jingle write\n",
            frame->frametype);
      return 0;
   }

   return res;
}

static int load_module

(

void

)

[static]

Load module into PBX, register channel.

Definition at line 1850 of file chan_jingle.c.

References __ourip, ARRAY_LEN, ast_channel_register(), ast_cli_register_multiple(), ast_find_ourip(), ast_log(), ast_module_helper(), AST_MODULE_LOAD_DECLINE, ast_rtp_proto_register(), ASTOBJ_CONTAINER_INIT, free, io_context_create(), JINGLE_CONFIG, jingle_list, jingle_load_config(), LOG_ERROR, LOG_WARNING, and sched_context_create().

{
   char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
   free(jabber_loaded);
   if (!jabber_loaded) {
      /* Dependency module has a different name, if embedded */
      jabber_loaded = ast_module_helper("", "res_jabber", 0, 0, 0, 0);
      free(jabber_loaded);
      if (!jabber_loaded) {
         ast_log(LOG_ERROR, "chan_jingle.so depends upon res_jabber.so\n");
         return AST_MODULE_LOAD_DECLINE;
      }
   }

   ASTOBJ_CONTAINER_INIT(&jingle_list);
   if (!jingle_load_config()) {
      ast_log(LOG_ERROR, "Unable to read config file %s. Not loading module.\n", JINGLE_CONFIG);
      return AST_MODULE_LOAD_DECLINE;
   }

   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, Jingle disabled\n");
      return 0;
   }

   ast_rtp_proto_register(&jingle_rtp);
   ast_cli_register_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
   /* Make sure we can register our channel type */
   if (ast_channel_register(&jingle_tech)) {
      ast_log(LOG_ERROR, "Unable to register channel class %s\n", channel_type);
      return -1;
   }
   return 0;
}

static int reload

(

void

)

[static]

Reload module.

Definition at line 1894 of file chan_jingle.c.

{
   return 0;
}

static int unload_module

(

void

)

[static]

Unload the jingle channel from Asterisk.

Definition at line 1900 of file chan_jingle.c.

References ARRAY_LEN, ast_channel_unregister(), ast_cli_unregister_multiple(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_proto_unregister(), ast_softhangup(), AST_SOFTHANGUP_APPUNLOAD, ASTOBJ_CONTAINER_DESTROY, ASTOBJ_CONTAINER_DESTROYALL, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_UNLOCK, ASTOBJ_WRLOCK, jingle_list, jingle_member_destroy(), jinglelock, LOG_WARNING, jingle_pvt::next, and jingle_pvt::owner.

{
   struct jingle_pvt *privates = NULL;
   ast_cli_unregister_multiple(jingle_cli, ARRAY_LEN(jingle_cli));
   /* First, take us out of the channel loop */
   ast_channel_unregister(&jingle_tech);
   ast_rtp_proto_unregister(&jingle_rtp);

   if (!ast_mutex_lock(&jinglelock)) {
      /* Hangup all interfaces if they have an owner */
      ASTOBJ_CONTAINER_TRAVERSE(&jingle_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(&jinglelock);
   } else {
      ast_log(LOG_WARNING, "Unable to lock the monitor\n");
      return -1;
   }
   ASTOBJ_CONTAINER_DESTROYALL(&jingle_list, jingle_member_destroy);
   ASTOBJ_CONTAINER_DESTROY(&jingle_list);
   return 0;
}

---

Variable Documentation

struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Jingle Channel Driver" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .reload = reload, } [static]

Definition at line 1935 of file chan_jingle.c.

struct in_addr __ourip [static]

Definition at line 218 of file chan_jingle.c.

Referenced by jingle_create_candidates(), and load_module().

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 1935 of file chan_jingle.c.

struct sockaddr_in bindaddr = { 0, } [static]

The address we bind to

Definition at line 214 of file chan_jingle.c.

const char channel_type[] = "Jingle" [static]

Definition at line 165 of file chan_jingle.c.

struct ast_jb_conf default_jbconf [static]

Global jitterbuffer configuration - by default, jb is disabled

Definition at line 75 of file chan_jingle.c.

const char desc[] = "Jingle Channel" [static]

Definition at line 164 of file chan_jingle.c.

char externip[16] [static]

Definition at line 235 of file chan_jingle.c.

int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263 [static]

Definition at line 167 of file chan_jingle.c.

Referenced by jingle_new().

struct ast_jb_conf global_jbconf [static]

Definition at line 83 of file chan_jingle.c.

Referenced by jingle_load_config(), and jingle_new().

struct io_context* io [static]

The IO context

Definition at line 217 of file chan_jingle.c.

struct ast_cli_entry jingle_cli[] [static]

Initial value:

 {
   AST_CLI_DEFINE(jingle_do_reload, "Reload Jingle configuration"),
   AST_CLI_DEFINE(jingle_show_channels, "Show Jingle channels"),
}

Definition at line 229 of file chan_jingle.c.

struct jingle_container jingle_list [static]

Definition at line 237 of file chan_jingle.c.

Referenced by find_jingle(), jingle_load_config(), jingle_show_channels(), load_module(), and unload_module().

struct ast_rtp_protocol jingle_rtp [static]

RTP driver interface.

Definition at line 222 of file chan_jingle.c.

struct ast_channel_tech jingle_tech [static]

PBX interface structure for channel registration.

Definition at line 194 of file chan_jingle.c.

Referenced by jingle_new().

ast_mutex_t jinglelock = AST_MUTEX_INIT_VALUE [static]

Protect the interface list (of jingle_pvt's)

Definition at line 169 of file chan_jingle.c.

Referenced by jingle_alloc(), jingle_show_channels(), and unload_module().

struct sched_context* sched [static]

The scheduling context

Definition at line 216 of file chan_jingle.c.