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asterisk/channels/chan_jingle.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Matt O'Gorman <mogorman@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \author Matt O'Gorman <mogorman@digium.com>
*
* \brief Jingle Channel Driver
*
* \extref Iksemel http://iksemel.jabberstudio.org/
*
* \ingroup channel_drivers
*/
/*** MODULEINFO
<depend>iksemel</depend>
<depend>res_jabber</depend>
<use type="external">openssl</use>
<defaultenabled>no</defaultenabled>
<support_level>extended</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#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_engine.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"
#define JINGLE_CONFIG "jingle.conf"
/*! Global jitterbuffer configuration - by default, jb is disabled */
static struct ast_jb_conf default_jbconf =
{
.flags = 0,
.max_size = -1,
.resync_threshold = -1,
.impl = "",
.target_extra = -1,
};
static struct ast_jb_conf global_jbconf;
enum jingle_protocol {
AJI_PROTOCOL_UDP,
AJI_PROTOCOL_SSLTCP,
};
enum jingle_connect_type {
AJI_CONNECT_HOST,
AJI_CONNECT_PRFLX,
AJI_CONNECT_RELAY,
AJI_CONNECT_SRFLX,
};
struct jingle_pvt {
ast_mutex_t lock; /*!< Channel private lock */
time_t laststun;
struct jingle *parent; /*!< Parent client */
char sid[100];
char them[AJI_MAX_JIDLEN];
char ring[10]; /*!< Message ID of ring */
iksrule *ringrule; /*!< Rule for matching RING request */
int initiator; /*!< If we're the initiator */
int alreadygone;
struct ast_codec_pref prefs;
struct jingle_candidate *theircandidates;
struct jingle_candidate *ourcandidates;
char cid_num[80]; /*!< Caller ID num */
char cid_name[80]; /*!< Caller ID name */
char exten[80]; /*!< Called extension */
struct ast_channel *owner; /*!< Master Channel */
char audio_content_name[100]; /*!< name attribute of content tag */
struct ast_rtp_instance *rtp; /*!< RTP audio session */
char video_content_name[100]; /*!< name attribute of content tag */
struct ast_rtp_instance *vrtp; /*!< RTP video session */
struct ast_format_cap *cap;
struct ast_format_cap *jointcap; /*!< Supported capability at both ends (codecs ) */
struct ast_format_cap *peercap;
struct jingle_pvt *next; /* Next entity */
};
struct jingle_candidate {
unsigned int component; /*!< ex. : 1 for RTP, 2 for RTCP */
unsigned int foundation; /*!< Function of IP, protocol, type */
unsigned int generation;
char ip[16];
unsigned int network;
unsigned int port;
unsigned int priority;
enum jingle_protocol protocol;
char password[100];
enum jingle_connect_type type;
char ufrag[100];
unsigned int preference;
struct jingle_candidate *next;
};
struct jingle {
ASTOBJ_COMPONENTS(struct jingle);
struct aji_client *connection;
struct aji_buddy *buddy;
struct jingle_pvt *p;
struct ast_codec_pref prefs;
int amaflags; /*!< AMA Flags */
char user[100];
char context[100];
char accountcode[AST_MAX_ACCOUNT_CODE]; /*!< Account code */
struct ast_format_cap *cap;
ast_group_t callgroup; /*!< Call group */
ast_group_t pickupgroup; /*!< Pickup group */
int callingpres; /*!< Calling presentation */
int allowguest;
char language[MAX_LANGUAGE]; /*!< Default language for prompts */
char musicclass[MAX_MUSICCLASS]; /*!< Music on Hold class */
char parkinglot[AST_MAX_CONTEXT]; /*!< Parkinglot */
};
struct jingle_container {
ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
};
static const char desc[] = "Jingle Channel";
static const char channel_type[] = "Jingle";
static struct ast_format_cap *global_capability;
AST_MUTEX_DEFINE_STATIC(jinglelock); /*!< Protect the interface list (of jingle_pvt's) */
/* Forward declarations */
static struct ast_channel *jingle_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, void *data, int *cause);
static int jingle_sendtext(struct ast_channel *ast, const char *text);
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 int jingle_call(struct ast_channel *ast, char *dest, int timeout);
static int jingle_hangup(struct ast_channel *ast);
static int jingle_answer(struct ast_channel *ast);
static int jingle_newcall(struct jingle *client, ikspak *pak);
static struct ast_frame *jingle_read(struct ast_channel *ast);
static int jingle_write(struct ast_channel *ast, struct ast_frame *f);
static int jingle_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen);
static struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid);
static char *jingle_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
/*! \brief PBX interface structure for channel registration */
static struct ast_channel_tech jingle_tech = {
.type = "Jingle",
.description = "Jingle Channel Driver",
.requester = jingle_request,
.send_text = jingle_sendtext,
.send_digit_begin = jingle_digit_begin,
.send_digit_end = jingle_digit_end,
.bridge = ast_rtp_instance_bridge,
.call = jingle_call,
.hangup = jingle_hangup,
.answer = jingle_answer,
.read = jingle_read,
.write = jingle_write,
.exception = jingle_read,
.indicate = jingle_indicate,
.fixup = jingle_fixup,
.send_html = jingle_sendhtml,
.properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER
};
static struct sockaddr_in bindaddr = { 0, }; /*!< The address we bind to */
static struct ast_sched_context *sched; /*!< The scheduling context */
static struct io_context *io; /*!< The IO context */
static struct in_addr __ourip;
static struct ast_cli_entry jingle_cli[] = {
AST_CLI_DEFINE(jingle_do_reload, "Reload Jingle configuration"),
AST_CLI_DEFINE(jingle_show_channels, "Show Jingle channels"),
};
static char externip[16];
static struct jingle_container jingle_list;
static void jingle_member_destroy(struct jingle *obj)
{
obj->cap = ast_format_cap_destroy(obj->cap);
ast_free(obj);
}
static struct jingle *find_jingle(char *name, char *connection)
{
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 void add_codec_to_answer(const struct jingle_pvt *p, struct ast_format *codec, iks *dcodecs)
{
const 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);
}
}
static int jingle_accept_call(struct jingle *client, struct jingle_pvt *p)
{
struct jingle_pvt *tmp = client->p;
struct aji_client *c = client->connection;
iks *iq, *jingle, *dcodecs, *payload_red, *payload_audio, *payload_cn;
int x;
struct ast_format pref_codec;
struct ast_format_cap *alreadysent = ast_format_cap_alloc_nolock();
if (p->initiator || !alreadysent)
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 < AST_CODEC_PREF_SIZE; x++) {
if (!(ast_codec_pref_index(&client->prefs, x, &pref_codec)))
break;
if (!(ast_format_cap_iscompatible(client->cap, &pref_codec)))
continue;
if ((ast_format_cap_iscompatible(alreadysent, &pref_codec)))
continue;
add_codec_to_answer(p, &pref_codec, dcodecs);
ast_format_cap_add(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);
}
alreadysent = ast_format_cap_destroy(alreadysent);
return 1;
}
static int jingle_ringing_ack(void *data, ikspak *pak)
{
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 int jingle_answer(struct ast_channel *ast)
{
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 enum ast_rtp_glue_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance **instance)
{
struct jingle_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 void jingle_get_codec(struct ast_channel *chan, struct ast_format_cap *result)
{
struct jingle_pvt *p = chan->tech_pvt;
ast_mutex_lock(&p->lock);
ast_format_cap_copy(result, p->peercap);
ast_mutex_unlock(&p->lock);
}
static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp_instance *rtp, struct ast_rtp_instance *vrtp, struct ast_rtp_instance *tpeer, const struct ast_format_cap *cap, int nat_active)
{
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 struct ast_rtp_glue jingle_rtp_glue = {
.type = "Jingle",
.get_rtp_info = jingle_get_rtp_peer,
.get_codec = jingle_get_codec,
.update_peer = jingle_set_rtp_peer,
};
static int jingle_response(struct jingle *client, 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", 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_is_answered(struct jingle *client, ikspak *pak)
{
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_handle_dtmf(struct jingle *client, ikspak *pak)
{
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.integer = dtmf[0];
ast_queue_frame(tmp->owner, &f);
ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
} else if(iks_find_with_attrib(pak->x, "dtmf", "action", "button-down")) {
struct ast_frame f = {AST_FRAME_DTMF_END, };
f.subclass.integer = dtmf[0];
ast_queue_frame(tmp->owner, &f);
ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
} else if(iks_find_attrib(pak->x, "dtmf")) { /* 250 millasecond default */
struct ast_frame f = {AST_FRAME_DTMF, };
f.subclass.integer = dtmf[0];
ast_queue_frame(tmp->owner, &f);
ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
}
}
} 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.integer = dtmf[0];
ast_queue_frame(tmp->owner, &f);
ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
} else if(iks_find_with_attrib(dtmfnode, "dtmf", "action", "button-down")) {
struct ast_frame f = {AST_FRAME_DTMF_BEGIN, };
f.subclass.integer = dtmf[0];
ast_queue_frame(tmp->owner, &f);
ast_verbose("JINGLE! DTMF-relay event received: %c\n", f.subclass.integer);
}
}
}
}
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_farend(struct jingle *client, ikspak *pak)
{
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_create_candidates(struct jingle *client, struct jingle_pvt *p, char *sid, char *from)
{
struct jingle_candidate *tmp;
struct aji_client *c = client->connection;
struct jingle_candidate *ours1 = NULL, *ours2 = NULL;
struct sockaddr_in sin = { 0, };
struct ast_sockaddr sin_tmp;
struct ast_sockaddr us_tmp;
struct ast_sockaddr bindaddr_tmp;
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_instance_get_local_address(p->rtp, &sin_tmp);
ast_sockaddr_to_sin(&sin_tmp, &sin);
ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
ast_find_ourip(&us_tmp, &bindaddr_tmp, AF_INET);
us.s_addr = htonl(ast_sockaddr_ipv4(&us_tmp));
/* 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;
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 struct jingle_pvt *jingle_alloc(struct jingle *client, const char *from, const char *sid)
{
struct jingle_pvt *tmp = NULL;
struct aji_resource *resources = NULL;
struct aji_buddy *buddy;
char idroster[200];
struct ast_sockaddr bindaddr_tmp;
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;
}
tmp->cap = ast_format_cap_alloc_nolock();
tmp->jointcap = ast_format_cap_alloc_nolock();
tmp->peercap = ast_format_cap_alloc_nolock();
if (!tmp->cap || !tmp->jointcap || !tmp->peercap) {
tmp->cap = ast_format_cap_destroy(tmp->cap);
tmp->jointcap = ast_format_cap_destroy(tmp->jointcap);
tmp->peercap = ast_format_cap_destroy(tmp->peercap);
ast_free(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;
}
ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
tmp->rtp = ast_rtp_instance_new("asterisk", sched, &bindaddr_tmp, NULL);
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;
}
/*! \brief Start new jingle channel */
static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title, const char *linkedid)
{
struct ast_channel *tmp;
struct ast_format_cap *what; /* SHALLOW COPY DO NOT DESTROY */
struct ast_format tmpfmt;
const char *str;
if (title)
str = title;
else
str = i->them;
tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "", "", "", linkedid, 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 (!ast_format_cap_is_empty(i->jointcap))
what = i->jointcap;
else if (!(ast_format_cap_is_empty(i->cap)))
what = i->cap;
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);
ast_codec_choose(&i->prefs, what, 1, &tmpfmt);
ast_format_cap_add(tmp->nativeformats, &tmpfmt);
ast_format_cap_iter_start(i->jointcap);
while (!(ast_format_cap_iter_next(i->jointcap, &tmpfmt))) {
if (AST_FORMAT_GET_TYPE(tmpfmt.id) == AST_FORMAT_TYPE_VIDEO) {
ast_format_cap_add(tmp->nativeformats, &tmpfmt);
}
}
ast_format_cap_iter_end(i->jointcap);
if (i->rtp) {
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_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;
ast_best_codec(tmp->nativeformats, &tmpfmt);
ast_format_copy(&tmp->writeformat, &tmpfmt);
ast_format_copy(&tmp->rawwriteformat, &tmpfmt);
ast_format_copy(&tmp->readformat, &tmpfmt);
ast_format_copy(&tmp->rawreadformat, &tmpfmt);
tmp->tech_pvt = i;
tmp->callgroup = client->callgroup;
tmp->pickupgroup = client->pickupgroup;
tmp->caller.id.name.presentation = client->callingpres;
tmp->caller.id.number.presentation = 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 */
if (!ast_strlen_zero(i->cid_num)) {
tmp->caller.ani.number.valid = 1;
tmp->caller.ani.number.str = ast_strdup(i->cid_num);
}
if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s")) {
tmp->dialed.number.str = 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_action(struct jingle *client, struct jingle_pvt *p, const char *action)
{
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 void jingle_free_candidates(struct jingle_candidate *candidate)
{
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)
{
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_instance_destroy(p->rtp);
if (p->vrtp)
ast_rtp_instance_destroy(p->vrtp);
jingle_free_candidates(p->theircandidates);
p->cap = ast_format_cap_destroy(p->cap);
p->jointcap = ast_format_cap_destroy(p->jointcap);
p->peercap = ast_format_cap_destroy(p->peercap);
ast_free(p);
}
static int jingle_newcall(struct jingle *client, ikspak *pak)
{
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, NULL);
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_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(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_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(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_update_stun(struct jingle *client, struct jingle_pvt *p)
{
struct jingle_candidate *tmp;
struct hostent *hp;
struct ast_hostent ahp;
struct sockaddr_in sin;
struct ast_sockaddr sin_tmp;
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_sockaddr_from_sin(&sin_tmp, &sin);
ast_rtp_instance_stun_request(p->rtp, &sin_tmp, username);
tmp = tmp->next;
}
return 1;
}
static int jingle_add_candidate(struct jingle *client, ikspak *pak)
{
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 ast_frame *jingle_rtp_read(struct ast_channel *ast, struct jingle_pvt *p)
{
struct ast_frame *f;
if (!p->rtp)
return &ast_null_frame;
f = ast_rtp_instance_read(p->rtp, 0);
jingle_update_stun(p->parent, p);
if (p->owner) {
/* We already hold the channel lock */
if (f->frametype == AST_FRAME_VOICE) {
if (!(ast_format_cap_iscompatible(p->owner->nativeformats, &f->subclass.format))) {
ast_debug(1, "Oooh, format changed to %s\n", ast_getformatname(&f->subclass.format));
ast_format_cap_remove_bytype(p->owner->nativeformats, AST_FORMAT_TYPE_AUDIO);
ast_format_cap_add(p->owner->nativeformats, &f->subclass.format);
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.codec);
} */
}
}
return f;
}
static struct ast_frame *jingle_read(struct ast_channel *ast)
{
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;
}
/*! \brief Send frame to media channel (rtp) */
static int jingle_write(struct ast_channel *ast, struct ast_frame *frame)
{
struct jingle_pvt *p = ast->tech_pvt;
int res = 0;
char buf[256];
switch (frame->frametype) {
case AST_FRAME_VOICE:
if (!(ast_format_cap_iscompatible(ast->nativeformats, &frame->subclass.format))) {
ast_log(LOG_WARNING,
"Asked to transmit frame type %s, while native formats is %s (read/write = %s/%s)\n",
ast_getformatname(&frame->subclass.format),
ast_getformatname_multiple(buf, sizeof(buf), ast->nativeformats),
ast_getformatname(&ast->readformat),
ast_getformatname(&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 Jingle write\n",
frame->frametype);
return 0;
}
return res;
}
static int jingle_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
{
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 int jingle_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 jingle_sendtext(struct ast_channel *chan, const char *text)
{
int res = 0;
struct aji_client *client = NULL;
struct jingle_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 jingle_digit(struct ast_channel *ast, char digit, unsigned int duration)
{
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 *chan, char digit)
{
return jingle_digit(chan, digit, 0);
}
static int jingle_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
{
return jingle_digit(ast, digit, duration);
}
static int jingle_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
{
ast_log(LOG_NOTICE, "XXX Implement jingle sendhtml XXX\n");
return -1;
}
static int jingle_transmit_invite(struct jingle_pvt *p)
{
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;
}
/* Not in use right now.
static int jingle_auto_congest(void *nothing)
{
struct jingle_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 jingle_call(struct ast_channel *ast, char *dest, int timeout)
{
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);
ast_format_cap_copy(p->jointcap, p->cap);
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;
}
/*! \brief Hangup a call through the jingle proxy channel */
static int jingle_hangup(struct ast_channel *ast)
{
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;
}
/*! \brief Part of PBX interface */
static struct ast_channel *jingle_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, void *data, int *cause)
{
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, requestor ? requestor->linkedid : NULL);
ASTOBJ_UNLOCK(client);
return chan;
}
/*! \brief CLI command "jingle show channels" */
static char *jingle_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 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
}
/*! \brief CLI command "jingle reload" */
static char *jingle_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
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_parser(void *data, ikspak *pak)
{
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;
}
/* Not using this anymore probably take out soon
static struct jingle_candidate *jingle_create_candidate(char *args)
{
char *name, *type, *preference, *protocol;
struct jingle_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("host", type))
res->type = AJI_CONNECT_HOST;
if (!strcasecmp("prflx", type))
res->type = AJI_CONNECT_PRFLX;
if (!strcasecmp("relay", type))
res->type = AJI_CONNECT_RELAY;
if (!strcasecmp("srflx", type))
res->type = AJI_CONNECT_SRFLX;
}
return res;
}
*/
static int jingle_create_member(char *label, struct ast_variable *var, int allowguest,
struct ast_codec_pref prefs, char *context,
struct jingle *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 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->cap, var->value, 0);
else if (!strcasecmp(var->name, "allow"))
ast_parse_allow_disallow(&member->prefs, member->cap, 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_load_config(void)
{
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);
member->cap = ast_format_cap_alloc_nolock();
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->cap,
var->value, 0);
else if (!strcasecmp(var->name, "allow"))
ast_parse_allow_disallow(&member->prefs, member->cap,
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;
}
/*! \brief Load module into PBX, register channel */
static int load_module(void)
{
struct ast_sockaddr ourip_tmp;
struct ast_sockaddr bindaddr_tmp;
struct ast_format tmpfmt;
char *jabber_loaded = ast_module_helper("", "res_jabber.so", 0, 0, 0, 0);
if (!(jingle_tech.capabilities = ast_format_cap_alloc())) {
return AST_MODULE_LOAD_DECLINE;
}
ast_format_cap_add_all_by_type(jingle_tech.capabilities, AST_FORMAT_TYPE_AUDIO);
if (!(global_capability = ast_format_cap_alloc())) {
return AST_MODULE_LOAD_DECLINE;
}
ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_ULAW, 0));
ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_GSM, 0));
ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_ALAW, 0));
ast_format_cap_add(global_capability, ast_format_set(&tmpfmt, AST_FORMAT_H263, 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 = ast_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");
}
ast_sockaddr_from_sin(&bindaddr_tmp, &bindaddr);
if (ast_find_ourip(&ourip_tmp, &bindaddr_tmp, AF_INET)) {
ast_log(LOG_WARNING, "Unable to get own IP address, Jingle disabled\n");
return 0;
}
__ourip.s_addr = htonl(ast_sockaddr_ipv4(&ourip_tmp));
ast_rtp_glue_register(&jingle_rtp_glue);
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;
}
/*! \brief Reload module */
static int reload(void)
{
return 0;
}
/*! \brief Unload the jingle channel from Asterisk */
static int unload_module(void)
{
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_glue_unregister(&jingle_rtp_glue);
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);
global_capability = ast_format_cap_destroy(global_capability);
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Jingle Channel Driver",
.load = load_module,
.unload = unload_module,
.reload = reload,
.load_pri = AST_MODPRI_CHANNEL_DRIVER,
);
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