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-rw-r--r--trunk/channels/chan_jingle.c1862
1 files changed, 1862 insertions, 0 deletions
diff --git a/trunk/channels/chan_jingle.c b/trunk/channels/chan_jingle.c
new file mode 100644
index 000000000..87633978b
--- /dev/null
+++ b/trunk/channels/chan_jingle.c
@@ -0,0 +1,1862 @@
+/*
+ * 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>openssl</use>
+ ***/
+
+#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.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 = ""
+};
+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;
+ int capability;
+ 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 */
+ struct ast_rtp *rtp; /*!< RTP audio session */
+ struct ast_rtp *vrtp; /*!< RTP video session */
+ int jointcapability; /*!< Supported capability at both ends (codecs ) */
+ int peercapability;
+ 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 */
+ int capability;
+ 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 */
+};
+
+struct jingle_container {
+ ASTOBJ_CONTAINER_COMPONENTS(struct jingle);
+};
+
+static const char desc[] = "Jingle Channel";
+static const char type[] = "Jingle";
+
+static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263;
+
+AST_MUTEX_DEFINE_STATIC(jinglelock); /*!< Protect the interface list (of jingle_pvt's) */
+
+/* Forward declarations */
+static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause);
+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);
+/*----- RTP interface functions */
+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 enum ast_rtp_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp);
+static int jingle_get_codec(struct ast_channel *chan);
+
+/*! \brief PBX interface structure for channel registration */
+static const struct ast_channel_tech jingle_tech = {
+ .type = "Jingle",
+ .description = "Jingle Channel Driver",
+ .capabilities = AST_FORMAT_AUDIO_MASK,
+ .requester = jingle_request,
+ .send_digit_begin = jingle_digit_begin,
+ .send_digit_end = jingle_digit_end,
+ .bridge = ast_rtp_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 sched_context *sched; /*!< The scheduling context */
+static struct io_context *io; /*!< The IO context */
+static struct in_addr __ourip;
+
+
+/*! \brief RTP driver interface */
+static struct ast_rtp_protocol jingle_rtp = {
+ type: "Jingle",
+ get_rtp_info: jingle_get_rtp_peer,
+ set_rtp_peer: jingle_set_rtp_peer,
+ get_codec: jingle_get_codec,
+};
+
+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)
+{
+ 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")) {
+ if (!strcasecmp(iterator->connection->jid->partial, connection)) {
+ jingle = iterator;
+ } else if (!strcasecmp(iterator->connection->name, connection)) {
+ jingle = iterator;
+ }
+ }
+ ASTOBJ_UNLOCK(iterator);
+
+ if (jingle)
+ break;
+ });
+
+ }
+ return jingle;
+}
+
+
+static void add_codec_to_answer(const struct jingle_pvt *p, int codec, iks *dcodecs)
+{
+ 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 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;
+ 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_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_get_result jingle_get_rtp_peer(struct ast_channel *chan, struct ast_rtp **rtp)
+{
+ 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_get_codec(struct ast_channel *chan)
+{
+ struct jingle_pvt *p = chan->tech_pvt;
+ return p->peercapability;
+}
+
+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)
+{
+ 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 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);
+ if (reason)
+ iks_delete(reason);
+ if (error)
+ iks_delete(error);
+ iks_delete(response);
+ res = 0;
+ }
+ 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 = 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_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;
+ 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);
+ if (iq)
+ iks_delete(iq);
+ if (jingle)
+ iks_delete(jingle);
+ if (content)
+ iks_delete(content);
+ if (transport)
+ iks_delete(transport);
+ if (candidate)
+ 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];
+
+ 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;
+}
+
+/*! \brief Start new jingle channel */
+static struct ast_channel *jingle_new(struct jingle *client, struct jingle_pvt *i, int state, const char *title)
+{
+ 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_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);
+ iks_delete(jingle);
+ res = 0;
+ }
+ 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_destroy(p->rtp);
+ if (p->vrtp)
+ ast_rtp_destroy(p->vrtp);
+ jingle_free_candidates(p->theircandidates);
+ 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 *payload_type;
+
+ /* Make sure our new call doesn't exist yet */
+ 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;
+ }
+
+ 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) {
+ 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));
+ }
+
+ payload_type = iks_child(iks_child(iks_child(iks_child(pak->x))));
+ while (payload_type) {
+ ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(payload_type, "id")));
+ ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(payload_type, "id")), "audio", iks_find_attrib(payload_type, "name"), 0);
+ payload_type = iks_next(payload_type);
+ }
+
+ 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;
+ }
+ } else {
+ jingle_free_pvt(client, p);
+ }
+ 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;
+
+ 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_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_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 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;
+
+ 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 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_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) {
+ if(iq)
+ iks_delete(iq);
+ if(jingle)
+ iks_delete(jingle);
+ if(dtmf)
+ 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");
+
+ 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);
+ iks_insert_attrib(content, "creator", "initiator");
+ iks_insert_attrib(content, "name", "asterisk-audio-content");
+ 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);
+ 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;
+}
+
+/*! \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, int format, 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;
+ }
+ 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;
+}
+
+/*! \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->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_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)
+ 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));
+/* 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 = iterator;
+ 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_CONTAINER_LINK(&jingle_list, member);
+ ASTOBJ_UNLOCK(iterator);
+ });
+ } 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)
+{
+ 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, sizeof(jingle_cli) / sizeof(jingle_cli[0]));
+ /* 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", 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, sizeof(jingle_cli) / sizeof(jingle_cli[0]));
+ /* 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;
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Jingle Channel Driver",
+ .load = load_module,
+ .unload = unload_module,
+ .reload = reload,
+ );