diff options
Diffstat (limited to 'channels/chan_jingle.c')
| -rw-r--r-- | channels/chan_jingle.c | 1695 |
1 files changed, 1695 insertions, 0 deletions
diff --git a/channels/chan_jingle.c b/channels/chan_jingle.c new file mode 100644 index 000000000..4b0a38a31 --- /dev/null +++ b/channels/chan_jingle.c @@ -0,0 +1,1695 @@ +/* + * 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 + * + * \ingroup channel_drivers + */ + +/*** MODULEINFO + <depend>iksemel</depend> + ***/ + + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/socket.h> +#include <errno.h> +#include <stdlib.h> +#include <fcntl.h> +#include <netdb.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <sys/signal.h> +#include <iksemel.h> + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") +#include "asterisk/lock.h" +#include "asterisk/channel.h" +#include "asterisk/config.h" +#include "asterisk/logger.h" +#include "asterisk/module.h" +#include "asterisk/pbx.h" +#include "asterisk/options.h" +#include "asterisk/lock.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/jabber.h" +#include "asterisk/jingle.h" + +#define JINGLE_CONFIG "jingle.conf" + +enum jingle_protocol { + AJI_PROTOCOL_UDP = 1, + AJI_PROTOCOL_SSLTCP = 2, +}; + +enum jingle_connect_type { + AJI_CONNECT_STUN = 1, + AJI_CONNECT_LOCAL = 2, + AJI_CONNECT_RELAY = 3, +}; + +struct jingle_pvt { + ast_mutex_t lock; /* Channel private lock */ + time_t laststun; + struct jingle *parent; /* Parent client */ + char sid[100]; + char from[100]; + 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 Session */ + struct ast_rtp *vrtp; + int jointcapability; /*!< Supported capability at both ends (codecs ) */ + int peercapability; + struct jingle_pvt *next; /* Next entity */ +}; + +struct jingle_candidate { + char name[100]; + enum jingle_protocol protocol; + double preference; + char username[100]; + char password[100]; + enum jingle_connect_type type; + char network[6]; + int generation; + char ip[16]; + int port; + int receipt; + 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 const char tdesc[] = "Jingle Channel Driver"; + +static int usecnt = 0; +AST_MUTEX_DEFINE_STATIC(usecnt_lock); + + +static int global_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_GSM | AST_FORMAT_H263; + +/* Protect the interface list (of sip_pvt's) */ +AST_MUTEX_DEFINE_STATIC(jinglelock); + +AST_MUTEX_DEFINE_STATIC(rand_lock); /*!< Lock for thread-safe random generator */ + + +static struct ast_channel *jingle_request(const char *type, int format, void *data, int *cause); +static int jingle_digit(struct ast_channel *ast, char digit); +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); +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); + +/* PBX interface structure for channel registration */ +static const struct ast_channel_tech jingle_tech = { + .type = type, + .description = tdesc, + .capabilities = ((AST_FORMAT_MAX_AUDIO << 1) - 1), + .requester = jingle_request, + .send_digit = jingle_digit, +// .devicestate = jingle_devicestate, +// .transfer = jingle_transfer, + .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, +}; + +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; +/*----- RTP interface functions */ +static int jingle_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, + struct ast_rtp *vrtp, int codecs, int nat_active); +static struct ast_rtp *jingle_get_rtp_peer(struct ast_channel *chan); +static int jingle_get_codec(struct ast_channel *chan); + +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, +}; + +char externip[16]; + +struct jingle_container jingles; + +static void jingle_member_destroy(struct jingle *obj) +{ + free(obj); +} + +static struct jingle *find_jingle(char *name, char *connection) +{ + struct jingle *jingle = NULL; + + jingle = ASTOBJ_CONTAINER_FIND(&jingles, name); + if (!jingle && strchr(name, '@')) + jingle = ASTOBJ_CONTAINER_FIND_FULL(&jingles, name, user,,, strcasecmp); + + if (!jingle) { /* guest call */ + ASTOBJ_CONTAINER_TRAVERSE(&jingles, 1, { + ASTOBJ_WRLOCK(iterator); + if (!strcasecmp(iterator->name, "guest")) { + if (!strcasecmp(iterator->connection->jid->partial, connection)) { + jingle = iterator; + break; + } else if (!strcasecmp(iterator->connection->name, connection)) { + jingle = iterator; + break; + } + } + ASTOBJ_UNLOCK(iterator); + }); + + } + return jingle; +} + + +static void add_codec_to_answer(const struct jingle_pvt *p, int codec, iks *dcodecs) +{ + ast_verbose("Adding codec 0x%x (%s) to SDP\n", codec, ast_getformatname(codec)); + if (!strcasecmp("ulaw", ast_getformatname(codec))) { + 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"); + iks_insert_attrib(payload_pcmu, "xmlns", "http://www.google.com/session/phone"); + payload_eg711u = iks_new("payload-type"); + iks_insert_attrib(payload_eg711u, "id", "100"); + iks_insert_attrib(payload_eg711u, "name", "EG711U"); + iks_insert_attrib(payload_eg711u, "xmlns", "http://www.google.com/session/phone"); + iks_insert_node(dcodecs, payload_pcmu); + // iks_insert_node(dcodecs, payload_eg711u); + } + if (!strcasecmp("alaw", ast_getformatname(codec))) { + iks *payload_eg711a, *payload_pcma; + payload_pcma = iks_new("payload-type"); + iks_insert_attrib(payload_pcma, "id", "8"); + iks_insert_attrib(payload_pcma, "name", "PCMA"); + iks_insert_attrib(payload_pcma, "xmlns", "http://www.google.com/session/phone"); + payload_eg711a = iks_new("payload-type"); + iks_insert_attrib(payload_eg711a, "id", "101"); + iks_insert_attrib(payload_eg711a, "name", "EG711A"); + iks_insert_attrib(payload_eg711a, "xmlns", "http://www.google.com/session/phone"); + iks_insert_node(dcodecs, payload_pcma); + iks_insert_node(dcodecs, payload_eg711a); + } + if (!strcasecmp("ilbc", ast_getformatname(codec))) { + iks *payload_ilbc; + payload_ilbc = iks_new("payload-type"); + iks_insert_attrib(payload_ilbc, "id", "102"); + iks_insert_attrib(payload_ilbc, "name", "iLBC"); + iks_insert_attrib(payload_ilbc, "xmlns", "http://www.google.com/session/phone"); + iks_insert_node(dcodecs, payload_ilbc); + } + if (!strcasecmp("g723", ast_getformatname(codec))) { + iks *payload_g723; + payload_g723 = iks_new("payload-type"); + iks_insert_attrib(payload_g723, "id", "4"); + iks_insert_attrib(payload_g723, "name", "G723"); + iks_insert_attrib(payload_g723, "xmlns", "http://www.google.com/session/phone"); + 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(GOOGLE_NODE); + dcodecs = iks_new("description"); + if (iq && jingle && dcodecs) { + iks_insert_attrib(dcodecs, "xmlns", "http://www.google.com/session/phone"); + + 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; + if (pref_codec <= AST_FORMAT_MAX_AUDIO) + add_codec_to_answer(p, pref_codec, dcodecs); + else + 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"); + iks_insert_attrib(payload_red, "xmlns", "http://www.google.com/session/phone"); + payload_audio = iks_new("payload-type"); + iks_insert_attrib(payload_audio, "id", "106"); + iks_insert_attrib(payload_audio, "name", "audio/telephone-event"); + iks_insert_attrib(payload_audio, "xmlns", "http://www.google.com/session/phone"); + payload_cn = iks_new("payload-type"); + iks_insert_attrib(payload_cn, "id", "13"); + iks_insert_attrib(payload_cn, "name", "CN"); + iks_insert_attrib(payload_cn, "xmlns", "http://www.google.com/session/phone"); + + + iks_insert_attrib(iq, "type", "set"); + // iks_insert_attrib(iq,"from",client->connection->jid->full); + iks_insert_attrib(iq, "to", (p->from) ? p->from : client->user); + iks_insert_attrib(iq, "id", client->connection->mid); + ast_aji_increment_mid(client->connection->mid); + + iks_insert_attrib(jingle, "xmlns", "http://www.google.com/session"); + iks_insert_attrib(jingle, "type", JINGLE_ACCEPT); + ast_verbose("WOOH %d\n", p->initiator); + iks_insert_attrib(jingle, "initiator", + p->initiator ? client->connection->jid->full : p->from); + iks_insert_attrib(jingle, GOOGLE_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); + + iks_send(c->p, 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_log(LOG_DEBUG, "Answer!\n"); + ast_mutex_lock(&p->lock); + jingle_accept_call(client, p); + ast_mutex_unlock(&p->lock); + return res; +} + +static force_inline int thread_safe_rand(void) +{ + int val; + + ast_mutex_lock(&rand_lock); + val = rand(); + ast_mutex_unlock(&rand_lock); + + return val; +} + +static struct ast_rtp *jingle_get_rtp_peer(struct ast_channel *chan) +{ + struct jingle_pvt *p; + struct ast_rtp *rtp = NULL; + p = chan->tech_pvt; + if (!p) + return NULL; + ast_mutex_lock(&p->lock); + if (p->rtp) + rtp = p->rtp; + ast_mutex_unlock(&p->lock); + return rtp; +} + +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, 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) +{ + iks *response, *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); + } + } + iks_send(client->connection->p, 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_log(LOG_DEBUG, "The client is %s\n", client->name); + tmp = client->p; + /* Make sure our new call doesn't exist yet */ + while (tmp) { + ast_verbose("FFFFF %s\n", tmp->sid); + if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) { + break; + } + tmp = tmp->next; + } + + 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); + return 1; +} + +static int jingle_hangup_farend(struct jingle *client, ikspak *pak) +{ + struct jingle_pvt *tmp; + + ast_log(LOG_DEBUG, "The client is %s\n", client->name); + tmp = client->p; + /* Make sure our new call doesn't exist yet */ + while (tmp) { + if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) { + break; + } + tmp = tmp->next; + } + + if (tmp) { + tmp->alreadygone = 1; + ast_queue_hangup(tmp->owner); + } else + ast_log(LOG_NOTICE, "Whoa, didn't find call!\n"); + jingle_response(client, pak, NULL); + ast_verbose("END CALL\n"); + 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; + char iabuf[INET_ADDRSTRLEN]; + + iks *iq, *jingle, *candidate; + char user[17], pass[17], preference[5], port[7]; + + + iq = iks_new("iq"); + jingle = iks_new(GOOGLE_NODE); + candidate = iks_new("candidate"); + ours1 = (struct jingle_candidate *) ast_calloc(1, sizeof(struct jingle_candidate)); + ours2 = (struct jingle_candidate *) ast_calloc(1, sizeof(struct jingle_candidate)); + if (!iq || !jingle || !candidate || !ours1 || !ours2) { + ast_log(LOG_WARNING, "out of memory!\n"); + goto safeout; + } + + iks_insert_node(iq, jingle); + iks_insert_node(jingle, candidate); + + while (p) { + if (!strcasecmp(p->sid, sid)) { + break; + } + p = p->next; + } + + if (!p) { + ast_log(LOG_NOTICE, "No matching jingle session!\n"); + goto safeout; + } + + ast_rtp_get_us(p->rtp, &sin); + ast_find_ourip(&us, bindaddr); + + /* Setup our jingle candidates */ + ast_copy_string(ours1->name, "rtp", sizeof(ours1->name)); + ours1->port = ntohs(sin.sin_port); + ours1->preference = 1; + snprintf(user, sizeof(user), "%08x%08x", thread_safe_rand(), thread_safe_rand()); + snprintf(pass, sizeof(pass), "%08x%08x", thread_safe_rand(), thread_safe_rand()); + ast_copy_string(ours1->username, user, sizeof(ours1->username)); + ast_copy_string(ours1->password, pass, sizeof(ours1->password)); + ast_inet_ntoa(ours1->ip, sizeof(ours1->ip), us); + ours1->protocol = AJI_PROTOCOL_UDP; + ours1->type = AJI_CONNECT_LOCAL; + ours1->generation = 0; + p->ourcandidates = ours1; + + if (!ast_strlen_zero(externip)) { + /* XXX We should really stun for this one not just go with externip XXX */ + snprintf(user, sizeof(user), "%08x%08x", thread_safe_rand(), thread_safe_rand()); + snprintf(pass, sizeof(pass), "%08x%08x", thread_safe_rand(), thread_safe_rand()); + ast_copy_string(ours2->username, user, sizeof(ours2->username)); + ast_copy_string(ours2->password, pass, sizeof(ours2->password)); + ast_copy_string(ours2->ip, externip, sizeof(ours2->ip)); + ast_copy_string(ours2->name, "rtp", sizeof(ours1->name)); + ours2->port = ntohs(sin.sin_port); + ours2->preference = 0.9; + ours2->protocol = AJI_PROTOCOL_UDP; + ours2->type = AJI_CONNECT_STUN; + ours2->generation = 0; + ours1->next = ours2; + ours2 = NULL; + } + ours1 = NULL; + dest.sin_addr = __ourip; /// THIS IS BAD NEED TO FIX + dest.sin_port = sin.sin_port; + + ast_verbose("We're at %s port %d\n", ast_inet_ntoa(iabuf, sizeof(iabuf), us), ntohs(sin.sin_port)); /// THIS IS BAD NEED TO FIX + + tmp = p->ourcandidates; + while (tmp) { /*send standard candidates */ + snprintf(port, sizeof(port), "%d", tmp->port); + snprintf(preference, sizeof(preference), "%.2f", tmp->preference); + 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, "type", "candidates"); + iks_insert_attrib(jingle, "id", sid); + iks_insert_attrib(jingle, "initiator", (p->initiator) ? c->jid->full : from); + iks_insert_attrib(jingle, "xmlns", GOOGLE_NS); + iks_insert_attrib(candidate, "name", tmp->name); + iks_insert_attrib(candidate, "address", tmp->ip); + iks_insert_attrib(candidate, "port", port); + iks_insert_attrib(candidate, "username", tmp->username); + iks_insert_attrib(candidate, "password", tmp->password); + iks_insert_attrib(candidate, "preference", preference); + if (tmp->protocol == AJI_PROTOCOL_UDP) + iks_insert_attrib(candidate, "protocol", "udp"); + if (tmp->protocol == AJI_PROTOCOL_SSLTCP) + iks_insert_attrib(candidate, "protocol", "ssltcp"); + if (tmp->type == AJI_CONNECT_STUN) + iks_insert_attrib(candidate, "type", "stun"); + if (tmp->type == AJI_CONNECT_LOCAL) + iks_insert_attrib(candidate, "type", "local"); + if (tmp->type == AJI_CONNECT_RELAY) + iks_insert_attrib(candidate, "type", "relay"); + iks_insert_attrib(candidate, "network", "0"); + iks_insert_attrib(candidate, "generation", "0"); + iks_send(c->p, iq); + tmp = tmp->next; + } + p->laststun = 0; + +safeout: + if (ours1) + free(ours1); + if (ours2) + free(ours2); + if (iq) + iks_delete(iq); + if (jingle) + iks_delete(jingle); + 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_log(LOG_DEBUG, "The client is %s for alloc\n", client->name); + if (!sid && !strchr(from, '/')) { /*I started call! */ + ast_verbose("shouldnt be called on inbound!\n"); + if (!strcasecmp(client->name, "guest")) { + buddy = ASTOBJ_CONTAINER_FIND(&client->connection->buddies, from); + if (buddy) + resources = buddy->resources; + ast_verbose("shouldnt be called on inbound! %s ----- %s ---- %s\n", + client->name, from, buddy->name); + } else { + resources = client->buddy->resources; + } + while (resources) { + if (resources->cap->jingle) { + ast_verbose("WOW FOUND\n"); + 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; + } + if (sid) { + ast_copy_string(tmp->sid, sid, sizeof(tmp->sid)); + ast_copy_string(tmp->from, from, sizeof(tmp->from)); + } else { + snprintf(tmp->sid, sizeof(tmp->sid), "%08lx%08lx", ast_random(), ast_random()); + ast_copy_string(tmp->from, idroster, sizeof(tmp->from)); + 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"); + 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; + + tmp = ast_channel_alloc(1); + 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; + tmp->nativeformats = + ast_codec_choose(&i->prefs, what, + 1) | (i->jointcapability & AST_FORMAT_VIDEO_MASK); + fmt = ast_best_codec(tmp->nativeformats); + + if (title) + ast_string_field_build(tmp, name, "Jingle/%s-%04lx", title, + ast_random() & 0xffff); + else + ast_string_field_build(tmp, name, "Jingle/%s-%04lx", i->from, + ast_random() & 0xffff); + + if (i->rtp) { + tmp->fds[0] = ast_rtp_fd(i->rtp); + tmp->fds[1] = ast_rtcp_fd(i->rtp); + } + if (i->vrtp) { + tmp->fds[2] = ast_rtp_fd(i->vrtp); + tmp->fds[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_mutex_lock(&usecnt_lock); + usecnt++; + ast_mutex_unlock(&usecnt_lock); + ast_copy_string(tmp->context, client->context, sizeof(tmp->context)); + ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten)); + if (!ast_strlen_zero(i->cid_num)) + tmp->cid.cid_num = ast_strdup(i->cid_num); + if (!ast_strlen_zero(i->cid_name)) + tmp->cid.cid_name = ast_strdup(i->cid_name); + if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s")) + tmp->cid.cid_dnid = ast_strdup(i->exten); + tmp->priority = 1; + ast_setstate(tmp, state); + 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 *request, *session = NULL; + int res = -1; + + request = iks_new("iq"); + if (request) { + iks_insert_attrib(request, "type", "set"); + iks_insert_attrib(request, "from", client->connection->jid->full); + iks_insert_attrib(request, "to", p->from); + iks_insert_attrib(request, "id", client->connection->mid); + ast_aji_increment_mid(client->connection->mid); + session = iks_new("session"); + if (session) { + iks_insert_attrib(session, "type", action); + iks_insert_attrib(session, "id", p->sid); + iks_insert_attrib(session, "initiator", + p->initiator ? client->connection->jid->full : p->from); + iks_insert_attrib(session, "xmlns", "http://www.google.com/session"); + iks_insert_node(request, session); + iks_send(client->connection->p, request); + iks_delete(session); + res = 0; + } + iks_delete(request); + } + return res; +} + +static void jingle_free_candidates(struct jingle_candidate *candidate) +{ + struct jingle_candidate *last; + while (candidate) { + last = candidate; + candidate = candidate->next; + free(last); + } +} + +static struct jingle_candidate *jingle_dup_candidates(struct jingle_candidate *candidate) +{ + struct jingle_candidate *newcan = NULL, *prev = NULL, *tmp; + while (candidate) { + tmp = malloc(sizeof(struct jingle_candidate)); + if (tmp) { + memcpy(tmp, candidate, sizeof(struct jingle_candidate)); + tmp->next = NULL; + if (prev) + prev->next = tmp; + else + newcan = tmp; + prev = tmp; + } + candidate = candidate->next; + } + return newcan; +} + +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); + 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; + + /* Make sure our new call doesn't exist yet */ + while (tmp) { + if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) { + ast_log(LOG_NOTICE, "Ignoring duplicate call setup on SID %s\n", tmp->sid); + jingle_response(client, pak, "out-of-order"); + return -1; + } + tmp = tmp->next; + } + + p = jingle_alloc(client, pak->from->partial, iks_find_attrib(pak->query, GOOGLE_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->from, pak->from->full, sizeof(p->from)); + if (iks_find_attrib(pak->query, GOOGLE_SID)) { + ast_copy_string(p->sid, iks_find_attrib(pak->query, GOOGLE_SID), + sizeof(p->sid)); + } + + codec = iks_child(iks_child(iks_child(pak->x))); + while (codec) { + ast_rtp_set_m_type(p->rtp, atoi(iks_find_attrib(codec, "id"))); + ast_rtp_set_rtpmap_type(p->rtp, atoi(iks_find_attrib(codec, "id")), "audio", + iks_find_attrib(codec, "name")); + ast_verbose("yatta!!\n"); + codec = iks_next(codec); + } + + 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"); + break; + case AST_PBX_CALL_LIMIT: + ast_log(LOG_WARNING, "Failed to start PBX (call limit reached) \n"); + jingle_response(client, pak, "service-unavailable"); + break; + case AST_PBX_SUCCESS: + jingle_response(client, pak, NULL); + jingle_create_candidates(client, p, + iks_find_attrib(pak->query, GOOGLE_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->username, + p->ourcandidates->username); + + 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; + newcandidate = + (struct jingle_candidate *) ast_calloc(1, sizeof(struct jingle_candidate)); + if (!newcandidate) + return 0; + memset(newcandidate, 0, sizeof(struct jingle_candidate)); + tmp = client->p; + while (tmp) { + if (iks_find_with_attrib(pak->x, GOOGLE_NODE, GOOGLE_SID, tmp->sid)) { + p = tmp; + break; + } + tmp = tmp->next; + } + + if (!p) { + ast_verbose("NO MATCH\n"); + return -1; + } + + traversenodes = pak->query; + while(traversenodes) { + ast_verbose("OOH %s\n", iks_name(traversenodes)); + if(!strcasecmp(iks_name(traversenodes), "session")) { + ast_verbose("XXXX OOH A SESSION\n"); + traversenodes = iks_child(traversenodes); + continue; + } + if(!strcasecmp(iks_name(traversenodes), "candidate")) { + ast_verbose("XXXX OOH A CANDIDATE\n"); + newcandidate = + (struct jingle_candidate *) ast_calloc(1, sizeof(struct jingle_candidate)); + if (!newcandidate) + return 0; + memset(newcandidate, 0, sizeof(struct jingle_candidate)); + ast_copy_string(newcandidate->name, iks_find_attrib(traversenodes, "name"), + sizeof(newcandidate->name)); + ast_copy_string(newcandidate->ip, iks_find_attrib(traversenodes, "address"), + sizeof(newcandidate->ip)); + newcandidate->port = atoi(iks_find_attrib(traversenodes, "port")); + ast_copy_string(newcandidate->username, iks_find_attrib(traversenodes, "username"), + sizeof(newcandidate->username)); + ast_copy_string(newcandidate->password, iks_find_attrib(traversenodes, "password"), + sizeof(newcandidate->password)); + newcandidate->preference = atof(iks_find_attrib(traversenodes, "preference")); + if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "udp")) + newcandidate->protocol = AJI_PROTOCOL_UDP; + if (!strcasecmp(iks_find_attrib(traversenodes, "protocol"), "ssltcp")) + newcandidate->protocol = AJI_PROTOCOL_SSLTCP; + + if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "stun")) + newcandidate->type = AJI_CONNECT_STUN; + if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "local")) + newcandidate->type = AJI_CONNECT_LOCAL; + if (!strcasecmp(iks_find_attrib(traversenodes, "type"), "relay")) + newcandidate->type = AJI_CONNECT_RELAY; + ast_copy_string(newcandidate->network, iks_find_attrib(traversenodes, "network"), + sizeof(newcandidate->network)); + newcandidate->generation = atoi(iks_find_attrib(traversenodes, "generation")); + newcandidate->next = NULL; + + newcandidate->next = p->theircandidates; + p->theircandidates = newcandidate; + p->laststun = 0; + 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")); + iks_send(c->p, 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)) { + if (option_debug) + ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass); + p->owner->nativeformats = + (p->owner->nativeformats & AST_FORMAT_VIDEO_MASK) | f->subclass; + ast_set_read_format(p->owner, p->owner->readformat); + ast_set_write_format(p->owner, p->owner->writeformat); + } +/* if ((ast_test_flag(p, SIP_DTMF) == SIP_DTMF_INBAND) && p->vad) { + f = ast_dsp_process(p->owner, p->vad, f); + if (option_debug && f && (f->frametype == AST_FRAME_DTMF)) + ast_log(LOG_DEBUG, "* 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) +{ + ast_log(LOG_NOTICE, "XXX Implement jingle indicate XXX\n"); + + return -1; +} + +static int jingle_digit(struct ast_channel *ast, char digit) +{ + ast_log(LOG_NOTICE, "XXX Implement jingle digit XXX\n"); + + return -1; +} + +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 *jingle = NULL; + struct aji_client *client = NULL; + iks *iq, *desc, *session; + iks *payload_eg711u, *payload_pcmu; + + jingle = p->parent; + client = jingle->connection; + iq = iks_new("iq"); + desc = iks_new("description"); + session = iks_new("session"); + iks_insert_attrib(iq, "type", "set"); + iks_insert_attrib(iq, "to", p->from); + iks_insert_attrib(iq, "from", client->jid->full); + iks_insert_attrib(iq, "id", client->mid); + ast_aji_increment_mid(client->mid); + iks_insert_attrib(session, "type", "initiate"); + iks_insert_attrib(session, "id", p->sid); + iks_insert_attrib(session, "initiator", client->jid->full); + iks_insert_attrib(session, "xmlns", "http://www.google.com/session"); + iks_insert_attrib(desc, "xmlns", "http://www.google.com/session/phone"); + 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(desc, payload_pcmu); + iks_insert_node(desc, payload_eg711u); + iks_insert_node(iq, session); + iks_insert_node(session, desc); + iks_send(client->p, iq); + iks_delete(iq); + iks_delete(desc); + iks_delete(session); + iks_delete(payload_eg711u); + iks_delete(payload_pcmu); + return 0; +} + +static int jingle_auto_congest(void *nothing) +{ + struct jingle_pvt *p = nothing; + + ast_mutex_lock(&p->lock); + if (p->owner) { + /* XXX fails on possible deadlock */ + 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->from); + + 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, "terminate"); + ast_mutex_unlock(&p->lock); + + jingle_free_pvt(client, p); + ast_mutex_lock(&usecnt_lock); + usecnt--; + ast_mutex_unlock(&usecnt_lock); + + 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((char *) data); + if (s) { + sender = strsep(&s, "/"); + if (sender && (sender[0] != '\0')) + to = strsep(&s, "/"); + if (!to) { + ast_log(LOG_ERROR, "Bad arguments\n"); + if (s) + free(s); + return NULL; + } + } + } + ast_verbose("to : %s\n from :%s\n", to, sender); + client = find_jingle(to, sender); + if (!client) { + ast_log(LOG_WARNING, "Could not find Recipiant.\n"); + if (s) + free(s); + return NULL; + } + p = jingle_alloc(client, to, NULL); + if (p) { + chan = jingle_new(client, p, AST_STATE_DOWN, to); + } + return chan; +} + +#if 0 +/*! \brief CLI command "jingle show channels" */ +static int jingle_show(int fd, int argc, char **argv) +{ + struct jingle_pvt *p = NULL; + struct jingle *peer = NULL; + struct jingle_candidate *tmp; + struct jingle *client = NULL; + client = ast_aji_get_client("asterisk"); + if (argc != 3) + return RESULT_SHOWUSAGE; + ast_mutex_lock(&jinglelock); + if (client) + p = jingles->p; + while (p) { + ast_mutex_lock(&p->lock); + ast_cli(fd, "SID = %s\n", p->sid); + tmp = p->candidates; + while (tmp) { + ast_verbose("port %d\n", tmp->port); + tmp = tmp->next; + } + ast_mutex_unlock(&p->lock); + p = p->next; + } + if (!jingles->p) + ast_cli(fd, "No jingle channels in use\n"); + ast_mutex_unlock(&jinglelock); + return RESULT_SUCCESS; +} +#endif +static char show_jingle_usage[] = + "Usage: jingle show channels\n" + " Provides summary information on active jingle channels.\n"; + +//static struct ast_cli_entry cli_show_jingle = { +// { "jingle", "show", "channels", NULL }, jingle_show, +// "Show status of jingle channels", show_jingle_usage, NULL }; + + +static int jingle_parser(void *data, ikspak *pak) +{ + struct jingle *client = ASTOBJ_REF((struct jingle *) data); + + ast_verbose("WOOHOO!!!\n"); + if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", JINGLE_INITIATE)) { + /* New call */ + jingle_newcall(client, pak); + } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", GOOGLE_NEGOTIATE)) { + ast_log(LOG_DEBUG, "About to add candidate!\n"); + jingle_add_candidate(client, pak); + ast_log(LOG_DEBUG, "Candidate Added!\n"); + } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", GOOGLE_ACCEPT)) { + jingle_is_answered(client, pak); + } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", "terminate")) { + ast_verbose("not this\n"); + jingle_hangup_farend(client, pak); + } else if (iks_find_with_attrib(pak->x, GOOGLE_NODE, "type", "reject")) { + ast_verbose("not this\n"); + jingle_hangup_farend(client, pak); + } + ASTOBJ_UNREF(client, jingle_member_destroy); + return IKS_FILTER_EAT; +} + +static struct jingle_candidate *jingle_create_candidate(char *args) +{ + char *name, *type, *preference, *protocol; + struct jingle_candidate *res; + res = malloc(sizeof(struct jingle_candidate)); + memset(res, 0, sizeof(struct jingle_candidate)); + if (args) + name = args; + if ((args = strchr(args, ','))) { + *args = '\0'; + args++; + preference = args; + } + if ((args = strchr(args, ','))) { + *args = '\0'; + args++; + protocol = args; + } + if ((args = strchr(args, ','))) { + *args = '\0'; + args++; + type = args; + } + if (name) + ast_copy_string(res->name, name, sizeof(res->name)); + if (preference) { + res->preference = atof(preference); + } + if (protocol) { + if (!strcasecmp("udp", protocol)) + res->protocol = AJI_PROTOCOL_UDP; + if (!strcasecmp("ssltcp", protocol)) + res->protocol = AJI_PROTOCOL_SSLTCP; + } + if (type) { + if (!strcasecmp("stun", type)) + res->type = AJI_CONNECT_STUN; + if (!strcasecmp("local", type)) + res->type = AJI_CONNECT_LOCAL; + if (!strcasecmp("relay", type)) + res->type = AJI_CONNECT_RELAY; + } + + return res; +} + +static int 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, "http://www.google.com/session", + IKS_RULE_DONE); + } else { + ast_log(LOG_ERROR, "connection referenced not found!\n"); + return 0; + } + } + var = var->next; + } + if (member->connection && member->user) + member->buddy = ASTOBJ_CONTAINER_FIND(&member->connection->buddies, member->user); + else { + ast_log(LOG_ERROR, "No Connection or Username!\n"); + } + ast_verbose("LABEL: %s\n member->name %s\n member->user %s\n", label, member->name, + member->user); + 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 ast_codec_pref prefs; + struct aji_client_container *clients; + struct jingle_candidate *global_candidates = NULL; + + cfg = ast_config_load(JINGLE_CONFIG); + if (!cfg) { + ast_log(LOG_WARNING, "No such configuration file %s\n", JINGLE_CONFIG); + return 0; + } + + cat = ast_category_browse(cfg, NULL); + for (var = ast_variable_browse(cfg, "general"); var; var = var->next) { + 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)); +#if 0 + else if (!strcasecmp(var->name, "candidate")) { + candidate = jingle_create_candidate(var->value); + if (candidate) { + candidate->next = global_candidates; + global_candidates = candidate; + } + } +#endif + } + while (cat) { + if (strcasecmp(cat, "general")) { + var = ast_variable_browse(cfg, cat); + member = (struct jingle *) malloc(sizeof(struct jingle)); + memset(member, 0, sizeof(struct jingle)); + 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; +#if 0 + member->ourcandidates = jingle_dup_candidates(global_candidates); +#endif + 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)); +#if 0 + else if (!strcasecmp(var->name, "candidate")) { + candidate = jingle_create_candidate(var->value); + if (candidate) { + candidate->next = member->ourcandidates; + member->ourcandidates = candidate; + } + } +#endif + 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, + "http://www.google.com/session", IKS_RULE_DONE); + ASTOBJ_UNLOCK(member); + ASTOBJ_CONTAINER_LINK(&jingles, member); + ASTOBJ_UNLOCK(iterator); + }); + } else { + ASTOBJ_UNLOCK(member); + ASTOBJ_UNREF(member, jingle_member_destroy); + } + } else { + if (jingle_create_member(cat, var, allowguest, prefs, context, member)) { + ast_verbose("step member\n"); + ASTOBJ_UNLOCK(member); + ASTOBJ_CONTAINER_LINK(&jingles, member); + ASTOBJ_UNREF(member, jingle_member_destroy); + } else { + ASTOBJ_UNLOCK(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 *mod) +{ + ast_verbose("step 1\n"); + ASTOBJ_CONTAINER_INIT(&jingles); + if (!jingle_load_config()) { + ast_log(LOG_ERROR, "Unable to read config file %s\n", JINGLE_CONFIG); + return -1; + } + + 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); + + /* 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; + } +// ast_cli_register(&cli_show_xmpps); + return 0; +} + +/*! \brief Reload module */ +static int reload(void *mod) +{ + return 0; +} + +/*! \brief Unload the jingle channel from Asterisk */ +static int unload_module(void *mod) +{ +// struct jingle_pvt *p = NULL; + struct aji_client *client = NULL; + client = ast_aji_get_client("asterisk"); + /* First, take us out of the channel loop */ +// ast_cli_unregister(&cli_show_xmpps); + ast_channel_unregister(&jingle_tech); + ast_rtp_proto_unregister(&jingle_rtp); + if (!ast_mutex_lock(&jinglelock)) { + /* Hangup all interfaces if they have an owner */ + // p = jingles->p; + // while(p) { + // if (p->owner) + // ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD); + // p = p->next; + // } + // jingles->p = NULL; + ast_mutex_unlock(&jinglelock); + } else { + ast_log(LOG_WARNING, "Unable to lock the monitor\n"); + return -1; + } + return 0; +} + +static const char *key(void) +{ + return ASTERISK_GPL_KEY; +} + +static const char *description(void) +{ + return desc; +} + +STD_MOD(MOD_1, reload, NULL, NULL); |