/*
-How does it work:
+Registering to LCR:
-To connect, open a socket and send a MESSAGE_HELLO to admin socket with
+To connect, open an LCR socket and send a MESSAGE_HELLO to socket with
the application name. This name is unique an can be used for routing calls.
+Now the channel driver is linked to LCR and can receive and make calls.
-To make a call, send a MESSAGE_NEWREF and a new reference is received.
-When receiving a call, a new reference is received.
-The reference is received with MESSAGE_NEWREF.
-Make a MESSAGE_SETUP or receive a MESSAGE_SETUP with the reference.
+Call is initiated by LCR:
-To release call and reference, send or receive MESSAGE_RELEASE.
-From that point on, the ref is not valid, so no other message may be sent
-with that reference.
+If a call is received from LCR, a MESSAGE_NEWREF is received first.
+A new chan_call instance is created. The call reference (ref) is given by
+MESSAGE_NEWREF. The state is CHAN_LCR_STATE_IN_PREPARE.
+After receiving MESSAGE_SETUP from LCR, the ast_channel instance is created
+using ast_channel_alloc(1). The setup information is given to asterisk.
+The new Asterisk instance pointer (ast) is stored to chan_call structure.
+The state changes to CHAN_LCR_STATE_IN_SETUP.
+
+
+Call is initiated by Asterisk:
+
+If a call is reveiced from Asterisk, a new chan_call instance is created.
+The new Asterisk instance pointer (ast) is stored to chan_call structure.
+A MESSASGE_NEWREF is sent to LCR requesting a new call reference (ref).
+The current call ref is set to 0, the state is CHAN_LCR_STATE_OUT_PREPARE.
+Further dialing information is queued.
+After the new callref is received by special MESSAGE_NEWREF reply, new ref
+is stored in the chan_call structure.
+The setup information is sent to LCR using MESSAGE_SETUP.
+The state changes to CHAN_LCR_STATE_OUT_SETUP.
+
+
+Call is in process:
+
+During call process, messages are received and sent.
+The state changes accordingly.
+Any message is allowed to be sent to LCR at any time except MESSAGE_RELEASE.
+If a MESSAGE_OVERLAP is received, further dialing is required.
+Queued dialing information, if any, is sent to LCR using MESSAGE_DIALING.
+In this case, the state changes to CHAN_LCR_STATE_OUT_DIALING.
+
+
+Call is released by LCR:
+
+A MESSAGE_RELEASE is received with the call reference (ref) to be released.
+The current ref is set to 0, to indicate released reference.
+The state changes to CHAN_LCR_STATE_RELEASE.
+ast_queue_hangup() is called, if asterisk instance (ast) exists, if not,
+the chan_call instance is destroyed.
+After lcr_hangup() is called-back by Asterisk, the chan_call instance
+is destroyed, because the current ref is set to 0 and the state equals
+CHAN_LCR_STATE_RELEASE.
+If the ref is 0 and the state is not CHAN_LCR_STATE_RELEASE, see the proceedure
+"Call is released by Asterisk".
+
+
+Call is released by Asterisk:
+
+lcr_hangup() is called-back by Asterisk. If the call reference (ref) is set,
+a MESSAGE_RELEASE is sent to LCR and the chan_call instance is destroyed.
+If the ref is 0 and the state is not CHAN_LCR_STATE_RELEASE, the new state is
+set to CHAN_LCR_STATE_RELEASE.
+Later, if the MESSAGE_NEWREF reply is received, a MESSAGE_RELEASE is sent to
+LCR and the chan_call instance is destroyed.
+If the ref is 0 and the state is CHAN_LCR_STATE_RELEASE, see the proceedure
+"Call is released by LCR".
*/
+todo (before first compile)
+reconnect after socket closed, release all calls.
+debug of call handling
+ausloesen beim socket-verlust
+
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/un.h>
-#include "macro.h"
+
+#include <pthread.h>
+#include <semaphore.h>
+
#include "extension.h"
#include "message.h"
-#include "admin.h"
+#include "lcrsocket.h"
#include "cause.h"
#include "bchannel.h"
#include "chan_lcr.h"
-int sock;
+
+
+#include <asterisk/module.h>
+#include <asterisk/channel.h>
+#include <asterisk/config.h>
+#include <asterisk/logger.h>
+#include <asterisk/pbx.h>
+#include <asterisk/options.h>
+#include <asterisk/io.h>
+#include <asterisk/frame.h>
+#include <asterisk/translate.h>
+#include <asterisk/cli.h>
+#include <asterisk/musiconhold.h>
+#include <asterisk/dsp.h>
+#include <asterisk/translate.h>
+#include <asterisk/file.h>
+#include <asterisk/callerid.h>
+#include <asterisk/indications.h>
+#include <asterisk/app.h>
+#include <asterisk/features.h>
+#include <asterisk/sched.h>
+
+CHAN_LCR_STATE // state description structure
+
+int lcr_debug=1;
+int mISDN_created=1;
+
+char lcr_type[]="LCR";
+
+pthread_t chan_tid;
+pthread_mutex_t chan_lock;
+int quit;
+
+int lcr_sock = -1;
struct admin_list {
struct admin_list *next;
while(*callp)
callp = &((*callp)->next);
- *callp = (struct chan_call *)MALLOC(sizeof(struct chan_call));
+ *callp = (struct chan_call *)malloc(sizeof(struct chan_call));
+ if (*callp)
+ memset(*callp, 0, sizeof(struct chan_call));
return(*callp);
}
if (*temp == call)
{
*temp = (*temp)->next;
+ if (call->bch)
+ {
+ if (call->bch->call)
+ call->bch->call = NULL;
+ }
free(call);
return;
}
}
}
+unsigned short new_brige_id(void)
+{
+ struct chan_call *call;
+ unsigned short id = 1;
+
+ /* search for lowest bridge id that is not in use and not 0 */
+ while(id)
+ {
+ call = call_first;
+ while(call)
+ {
+ if (call->bridge_id == id)
+ break;
+ call = call->next;
+ }
+ if (!call)
+ break;
+ id++;
+ }
+ return(id);
+}
+
/*
* receive bchannel data
adminp = &admin_first;
while(*adminp)
adminp = &((*adminp)->next);
- admin = (struct admin_list *)MALLOC(sizeof(struct admin_list));
+ admin = (struct admin_list *)malloc(sizeof(struct admin_list));
*adminp = admin;
admin->msg.type = message_type;
}
/*
+ * in case of a bridge, the unsupported message can be forwarded directly
+ * to the remote call.
+ */
+static void bridge_message_if_bridged(struct chan_call *call, int message_type, union parameter *param)
+{
+ /* check bridge */
+ if (!call) return;
+ if (!call->channel) return;
+ if (!call->channel->bridge_channel) return;
+ if (!call->channel->bridge_channel->call) return;
+ if (!call->channel->bridge_channel->call->ref) return;
+ send_message(MESSAGE_RELEASE, call->channel->bridge_channel->call->ref, param);
+}
+
+/*
+ * incoming setup from LCR
+ */
+static void lcr_in_setup(struct chan_call *call, int message_type, union parameter *param)
+{
+ struct ast_channel *ast;
+ union parameter newparam;
+
+ /* create asterisk channel instrance */
+ ast = ast_channel_alloc(1);
+ if (!ast)
+ {
+ /* release */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = CAUSE_RESSOURCEUNAVAIL;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_RELEASE, call->ref, &newparam);
+ /* remove call */
+ free_call(call);
+ return;
+ }
+ /* set ast pointer */
+ call->ast = ast;
+ ast->tech_pvt = call;
+ ast->tech = &lcr_tech;
+
+ /* fill setup information */
+ if (param->setup.exten[0])
+ strdup(ast->exten, param->setup.exten);
+ if (param->setup.callerinfo.id[0])
+ strdup(ast->cid->cid_num, param->setup.callerinfo.id);
+ if (param->setup.callerinfo.name[0])
+ strdup(ast->cid->cid_name, param->setup.callerinfo.name);
+ if (param->setup.redirinfo.id[0])
+ strdup(ast->cid->cid_name, numberrize_callerinfo(param->setup.callerinfo.name, param->setup.callerinfo.ntype, configfile->prefix_nat, configfile->prefix_inter));
+ switch (param->setup.callerinfo.present)
+ {
+ case INFO_PRESENT_ALLOWED:
+ ast->cid->cid_pres = AST_PRESENT_ALLOWED;
+ break;
+ case INFO_PRESENT_RESTRICTED:
+ ast->cid->cid_pres = AST_PRESENT_RESTRICTED;
+ break;
+ default:
+ ast->cid->cid_pres = AST_PRESENT_UNAVAILABLE;
+ }
+ switch (param->setup.callerinfo.ntype)
+ {
+ case INFO_NTYPE_SUBSCRIBER:
+ ast->cid->cid_ton = AST_wasnu;
+ break;
+ case INFO_NTYPE_NATIONAL:
+ ast->cid->cid_ton = AST_wasnu;
+ break;
+ case INFO_NTYPE_INTERNATIONAL:
+ ast->cid->cid_ton = AST_wasnu;
+ break;
+ default:
+ ast->cid->cid_ton = AST_wasnu;
+ }
+ ast->transfercapability = param->setup.bearerinfo.capability;
+
+ /* configure channel */
+ ast->state = AST_STATE_RESERVED;
+ snprintf(ast->name, sizeof(ast->name), "%s/%d", lcr_type, ++glob_channel);
+ ast->name[sizeof(ast->name)-1] = '\0';
+ ast->type = lcr_type;
+ ast->nativeformat = configfile->lawformat;
+ ast->readformat = ast->rawreadformat = configfile->lawformat;
+ ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+ ast->hangupcause = 0;
+
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_SETUP;
+
+ /* send setup to asterisk */
+ ast_pbx_start(ast);
+
+ /* send setup acknowledge to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ send_message(MESSAGE_OVERLAP, call->ref, &newparam);
+
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_DIALING;
+}
+
+/*
+ * incoming setup acknowledge from LCR
+ */
+static void lcr_in_overlap(struct chan_call *call, int message_type, union parameter *param)
+{
+ if (!call->ast) return;
+
+ /* send pending digits in dialque */
+ if (call->dialque)
+ send_dialque_to_lcr(call);
+ /* change to overlap state */
+ call->state = CHAN_LCR_STATE_OUT_DIALING;
+}
+
+/*
+ * incoming proceeding from LCR
+ */
+static void lcr_in_proceeding(struct chan_call *call, int message_type, union parameter *param)
+{
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_PROCEEDING;
+ /* send event to asterisk */
+ if (call->ast)
+ ast_queue_control(ast, AST_CONTROL_PROCEEDING);
+}
+
+/*
+ * incoming alerting from LCR
+ */
+static void lcr_in_alerting(struct chan_call *call, int message_type, union parameter *param)
+{
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_ALERTING;
+ /* send event to asterisk */
+ if (call->ast)
+ ast_queue_control(ast, AST_CONTROL_RINGING);
+}
+
+/*
+ * incoming connect from LCR
+ */
+static void lcr_in_connect(struct chan_call *call, int message_type, union parameter *param)
+{
+ /* change state */
+ call->state = CHAN_LCR_STATE_CONNECT;
+ /* copy connectinfo */
+ memcpy(call->connectinfo, param->connectinfo, sizeof(struct connect_info));
+ /* send event to asterisk */
+ if (call->ast)
+ ast_queue_control(ast, AST_CONTROL_ANSWER);
+}
+
+/*
+ * incoming disconnect from LCR
+ */
+static void lcr_in_disconnect(struct chan_call *call, int message_type, union parameter *param)
+{
+ union parameter newparam;
+
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_DISCONNECT;
+ /* save cause */
+ call->cause = param.disconnectinfo.cause;
+ call->location = param.disconnectinfo.location;
+ /* if bridge, forward disconnect and return */
+ if (call->channel)
+ if (call->channel->bridge_channel)
+ if (call->channel->bridge_channel->call)
+ {
+ bridge_message_if_bridged(call, message_type, param);
+ return;
+ }
+ /* release lcr */
+ newparam.disconnectinfo.cause = CAUSE_NORMAL;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_RELEASE, ref, &newparam);
+ ref = 0;
+ /* release asterisk */
+ call->ast->hangupcause = call->cause;
+ ast_queue_hangup(call->ast);
+ /* change to release state */
+ call->state = CHAN_LCR_STATE_RELEASE;
+}
+
+/*
+ * incoming setup acknowledge from LCR
+ */
+static void lcr_in_release(struct chan_call *call, int message_type, union parameter *param)
+{
+ /* release ref */
+ call->ref = NULL;
+ /* change to release state */
+ call->state = CHAN_LCR_STATE_RELEASE;
+ /* copy release info */
+ if (!call->cause)
+ call->cause = param.disconnectinfo.cause;
+ /* if we have an asterisk instance, send hangup, else we are done */
+ if (call->ast)
+ {
+ call->ast->hangupcause = call->cause;
+ ast_queue_hangup(call->ast);
+ } else
+ {
+ free_call(call);
+ }
+
+}
+
+/*
+ * incoming information from LCR
+ */
+static void lcr_in_information(struct chan_call *call, int message_type, union parameter *param)
+{
+ struct ast_frame fr;
+ char *p;
+
+ if (!call->ast) return;
+
+ /* copy digits */
+ p = param->dialinginfo.id;
+ if (call->state == CHAN_LCR_STATE_IN_DIALING && *p)
+ {
+ while (*p)
+ {
+ /* send digit to asterisk */
+ memset(&fr, 0, sizeof(fr));
+ fr.frametype = AST_FRAME_DTMF;
+ fr.subclass = *p;
+ fr.delivery = ast_tv(0, 0);
+ ast_queue_frame(call->ast, &fr);
+ p++;
+ }
+ }
+ /* use bridge to forware message not supported by asterisk */
+ if (call->state == CHAN_LCR_STATE_CONNECT)
+ bridge_message_if_bridged(call, message_type, param);
+}
+
+/*
+ * incoming information from LCR
+ */
+static void lcr_in_notify(struct chan_call *call, int message_type, union parameter *param)
+{
+ if (!call->ast) return;
+
+ /* use bridge to forware message not supported by asterisk */
+ bridge_message_if_bridged(call, message_type, param);
+}
+
+/*
+ * incoming information from LCR
+ */
+static void lcr_in_facility(struct chan_call *call, int message_type, union parameter *param)
+{
+ if (!call->ast) return;
+
+ /* use bridge to forware message not supported by asterisk */
+ bridge_message_if_bridged(call, message_type, param);
+}
+
+/*
* message received from LCR
*/
int receive_message(int message_type, unsigned long ref, union parameter *param)
case BCHANNEL_ASSIGN:
if ((bchannel = find_bchannel_handle(param->bchannel.handle)))
{
- fprintf(stderr, "error: bchannel handle %x already assigned.\n", param->bchannel.handle);
+ fprintf(stderr, "error: bchannel handle %x already assigned.\n", (int)param->bchannel.handle);
return(-1);
}
/* create bchannel */
bchannel = alloc_bchannel(param->bchannel.handle);
if (!bchannel)
{
- fprintf(stderr, "error: alloc bchannel handle %x failed.\n", param->bchannel.handle);
+ fprintf(stderr, "error: alloc bchannel handle %x failed.\n", (int)param->bchannel.handle);
return(-1);
}
{
bchannel->ref = ref;
call->bchannel_handle = param->bchannel.handle;
+#warning hier muesen alle stati gesetzt werden falls sie vor dem b-kanal verfügbar waren
+ bchannel_join(bchannel, call->bridge_id);
}
if (bchannel_create(bchannel))
bchannel_activate(bchannel, 1);
case BCHANNEL_REMOVE:
if (!(bchannel = find_bchannel_handle(param->bchannel.handle)))
{
- fprintf(stderr, "error: bchannel handle %x not assigned.\n", param->bchannel.handle);
+ #warning alle fprintf nach ast_log
+ fprintf(stderr, "error: bchannel handle %x not assigned.\n", (int)param->bchannel.handle);
return(-1);
}
/* unlink from call */
fprintf(stderr, "illegal new ref %d received\n", ref);
return(-1);
}
+ /* allocate new call instance */
call = alloc_call();
+ /* new state */
+ call->state = CHAN_LCR_STATE_IN_PREPARE;
+ /* set ref */
call->ref = ref;
+ /* wait for setup (or release from asterisk) */
} else
{
/* new ref, as requested from this remote application */
send_message(MESSAGE_RELEASE, ref, &newparam);
return(0);
}
+ /* store new ref */
call->ref = ref;
-#warning process call (send setup, if pending)
+ /* send pending setup info */
+ if (call->state == CHAN_LCR_STATE_OUT_PREPARE)
+ send_setup_to_lcr(call);
+ /* release if asterisk has signed off */
+ else if (call->state == CHAN_LCR_STATE_RELEASE)
+ {
+ /* send release */
+ newparam.disconnectinfo.cause = todo
+ newparam.disconnectinfo.location = todo
+ send_message(MESSAGE_RELEASE, ref, &newparam);
+ /* free call */
+ free_call(call);
+ return(0);
+ }
}
return(0);
}
/* handle messages */
switch(message_type)
{
-#warning we must see if ref is a reply or a request, do we??
+ case MESSAGE_SETUP:
+ lcr_in_setup(call, message_type, param);
+ break;
+
+ case MESSAGE_OVERLAP:
+ lcr_in_overlap(call, message_type, param);
+ break;
+
+ case MESSAGE_PROCEEDING:
+ lcr_in_proceeding(call, message_type, param);
+ break;
+
+ case MESSAGE_ALERTING:
+ lcr_in_alerting(call, message_type, param);
+ break;
+
+ case MESSAGE_CONNECT:
+ lcr_in_connect(call, message_type, param);
+ break;
+
+ case MESSAGE_DISCONNECT:
+ lcr_in_disconnect(call, message_type, param);
+ break;
+
case MESSAGE_RELEASE:
-#warning release call
- free_call(call);
- return(0);
+ lcr_in_release(call, message_type, param);
+ break;
- case MESSAGE_SETUP:
-#warning handle incoming setup, send to asterisk
+ case MESSAGE_INFORMATION:
+ lcr_in_disconnect(call, message_type, param);
+ break;
+
+ case MESSAGE_NOTIFY:
+ lcr_in_notify(call, message_type, param);
+ break;
+
+ case MESSAGE_FACILITY:
+ lcr_in_facility(call, message_type, param);
+ break;
+
+ case MESSAGE_PATTERN:
+#warning todo
break;
+
+ case MESSAGE_NOPATTERN:
+#warning todo
+ break;
+
+ case MESSAGE_AUDIOPATH:
+#warning todo
+ break;
+
+ default:
+#warning unhandled
}
return(0);
}
struct admin_message msg;
struct admin_list *admin;
+ int sock;
+
+ #warning SOCKET FEHLT!
/* read from socket */
len = read(sock, &msg, sizeof(msg));
if (len == 0)
}
/* free head */
admin_first = admin->next;
- FREE(admin, 0);
+ free(admin);
work = 1;
} else
}
/*
- * main function
+ * open and close socket
*/
-int main(int argc, char *argv[])
+int open_socket(void)
{
+ int ret;
+ int sock;
char *socket_name = SOCKET_NAME;
int conn;
struct sockaddr_un sock_address;
- int ret;
unsigned long on = 1;
union parameter param;
- int work;
/* open socket */
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
{
- fprintf(stderr, "Failed to create socket.\n");
- exit(EXIT_FAILURE);
+ ast_log(LOG_ERROR, "Failed to create socket.\n");
+ return(sock);
}
/* set socket address and name */
memset(&sock_address, 0, sizeof(sock_address));
sock_address.sun_family = PF_UNIX;
- UCPY(sock_address.sun_path, socket_name);
+ strcpy(sock_address.sun_path, socket_name);
/* connect socket */
if ((conn = connect(sock, (struct sockaddr *)&sock_address, SUN_LEN(&sock_address))) < 0)
{
close(sock);
- fprintf(stderr, "Failed to connect to socket \"%s\".\nIs LCR running?\n", sock_address.sun_path);
- exit(EXIT_FAILURE);
+ ast_log(LOG_ERROR, "Failed to connect to socket \"%s\". Is LCR running?\n", sock_address.sun_path);
+ return(conn);
}
/* set non-blocking io */
- if (ioctl(sock, FIONBIO, (unsigned char *)(&on)) < 0)
+ if ((ret = ioctl(sock, FIONBIO, (unsigned char *)(&on))) < 0)
{
close(sock);
- fprintf(stderr, "Failed to set socket into non-blocking IO.\n");
- exit(EXIT_FAILURE);
+ ast_log(LOG_ERROR, "Failed to set socket into non-blocking IO.\n");
+ return(ret);
}
/* enque hello message */
memset(¶m, 0, sizeof(param));
- SCPY(param.hello.application, "asterisk");
+ strcpy(param.hello.application, "asterisk");
send_message(MESSAGE_HELLO, 0, ¶m);
- /* bchannel */
- if (!bchannel_initialize())
- goto bchannel_failed;
-
- while(42)
+ return(sock);
+}
+
+void close_socket(int sock)
+{
+ /* close socket */
+ if (socket >= 0)
+ close(sock);
+}
+
+
+socket muss per timer fuer das öffnen checken
+static void *chan_thread(void *arg)
+{
+ int work;
+
+ pthread_mutex_lock(&chan_lock);
+
+ while(!quit)
{
work = 0;
/* handle socket */
- ret = handle_socket();
+ int ret = handle_socket();
if (ret < 0)
break;
if (ret)
work = 1;
if (!work)
+ {
+ pthread_mutex_unlock(&chan_lock);
usleep(30000);
+ pthread_mutex_lock(&chan_lock);
+ }
}
+
+ pthread_mutex_unlock(&chan_lock);
+
+ return NULL;
+}
+
+/*
+ * send setup info to LCR
+ * this function is called, when asterisk call is received and ref is received
+ */
+static void send_setup_to_lcr(struct chan_call *call)
+{
+ union parameter newparam;
- bchannel_deinitialize();
- bchannel_failed:
+ if (!ast || !call->ref)
+ return;
+
+ /* send setup message to LCR */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.setup.callerinfo.itype = INFO_ITYPE_CHAN;
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_UNKNOWN;
+ if (ast->cid->cid_num) if (ast->cid->cid_num[0])
+ strncpy(newparam.setup.callerinfo.id, ast->cid->cid_num, sizeof(newparam.setup.callerinfo.id)-1);
+ if (ast->cid->cid_name) if (ast->cid->cid_name[0])
+ strncpy(newparam.setup.callerinfo.name, ast->cid->cid_name, sizeof(newparam.setup.callerinfo.name)-1);
+ if (ast->cid->cid_rdnis) if (ast->cid->cid_rdnis[0])
+ {
+ strncpy(newparam.setup.redirinfo.id, ast->cid->cid_rdnis, sizeof(newparam.setup.redirinfo.id)-1);
+ newparam.setup.redirinfo.itype = INFO_ITYPE_CHAN;
+ newparam.setup.redirinfo.ntype = INFO_NTYPE_UNKNOWN;
+ }
+ switch(ast->cid->cid_pres & AST_PRES_RESTRICTION)
+ {
+ case AST_PRES_ALLOWED:
+ newparam.setup.callerinfo.present = INFO_PRESENT_ALLOWED;
+ break;
+ case AST_PRES_RESTRICTED:
+ newparam.setup.callerinfo.present = INFO_PRESENT_RESTRICTED;
+ break;
+ case AST_PRES_UNAVAILABLE:
+ newparam.setup.callerinfo.present = INFO_PRESENT_NOTAVAIL;
+ break;
+ default:
+ newparam.setup.callerinfo.present = INFO_PRESENT_NULL;
+ }
+ switch(ast->cid->cid_ton)
+ {
+ case AST_wasist:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_SUBSCRIBER;
+ break;
+ case AST_wasist:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_NATIONAL;
+ break;
+ case AST_wasist:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_INTERNATIONAL;
+ break;
+ }
+ newparam.setup.capainfo.bearer_capa = ast->transfercapability;
+ newparam.setup.capainfo.bearer_user = alaw 3, ulaw 2;
+ newparam.setup.capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
+ newparam.setup.capainfo.hlc = INFO_HLC_NONE;
+ newparam.setup.capainfo.exthlc = INFO_HLC_NONE;
+ send_message(MESSAGE_SETUP, call->ref, &newparam);
+
+ /* change to outgoing setup state */
+ call->state = CHAN_LCR_STATE_OUT_SETUP;
+}
+
+#if 0
+CHRISTIAN: das war ein konflikt beim pullen
+siehe anderes lcr_request();
+bedenke: das ast_log muss noch üeberall eingepflegt werden
+
+static struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
+{
+ struct chan_call *call=alloc_call();
+
+ if (call) {
+#warning hier muss jetzt wohl eine Ref angefordert werden!
+ ast=lcr_ast_new(call, ext, NULL, 0 );
+
+ if (ast) {
+ call->ast=ast;
+ } else {
+ ast_log(LOG_WARNING, "Could not create new Asterisk Channel\n");
+ free_call(call);
+ }
+ } else {
+ ast_log(LOG_WARNING, "Could not create new Lcr Call Handle\n");
+ }
+
+ return ast;
+}
+
+ struct ast_channel *ast=NULL;
+
+ char buf[128];
+ char *port_str, *ext, *p;
+ int port;
+
+ ast_copy_string(buf, data, sizeof(buf)-1);
+ p=buf;
+ port_str=strsep(&p, "/");
+ ext=strsep(&p, "/");
+ ast_verbose("portstr:%s ext:%s\n",port_str, ext);
+
+ sprintf(buf,"%s/%s",lcr_type,(char*)data);
+#endif
+
+/*
+ * send dialing info to LCR
+ * this function is called, when setup acknowledge is received and dialing
+ * info is available.
+ */
+static void send_dialque_to_lcr(struct chan_call *call)
+{
+ union parameter newparam;
+
+ if (!ast || !call->ref || !call->dialque)
+ return;
+
+ /* send setup message to LCR */
+ memset(&newparam, 0, sizeof(union parameter));
+ strncpy(newparam.dialinginfo.id, call->dialque, sizeof(newparam.dialinginfo.id)-1);
+ call->dialque[0] = '\0';
+ send_message(MESSAGE_INFORMATION, call->ref, &newparam);
+}
+
+/*
+ * new asterisk instance
+ */
+static struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
+{
+ union parameter newparam;
+
+ pthread_mutex_lock(&chan_lock);
+
+ /* create call instance */
+ call = alloc_call();
+ if (!call)
+ {
+ /* failed to create instance */
+ return NULL;
+ }
+ /* create asterisk channel instrance */
+ ast = ast_channel_alloc(1);
+ if (!ast)
+ {
+ free_call(call);
+ /* failed to create instance */
+ return NULL;
+ }
+ /* link together */
+ ast->tech_pvt = call;
+ call->ast = ast;
+ ast->tech = &lcr_tech;
+ /* configure channel */
+ ast->state = AST_STATE_RESERVED;
+ snprintf(ast->name, sizeof(ast->name), "%s/%d", lcr_type, ++glob_channel);
+ ast->name[sizeof(ast->name)-1] = '\0';
+ ast->type = lcr_type;
+ ast->nativeformat = configfile->lawformat;
+ ast->readformat = ast->rawreadformat = configfile->lawformat;
+ ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+ ast->hangupcause = 0;
+ /* send MESSAGE_NEWREF */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.direction = 0; /* request from app */
+ send_message(MESSAGE_NEWREF, 0, &newparam);
+ /* set state */
+ call->state = CHAN_LCR_STATE_OUT_PREPARE;
+
+ pthread_mutex_unlock(&chan_lock);
+}
+
+/*
+ * call from asterisk
+ */
+static int lcr_call(struct ast_channel *ast, char *dest, int timeout)
+{
+ union parameter newparam;
+ struct chan_call *call=ast->tech_pvt;
+ char buf[128];
+ char *port_str, *dad, *p;
+
+ if (!call) return -1;
+
+ pthread_mutex_lock(&chan_lock);
+
+ hier muss noch
+ ast_copy_string(buf, dest, sizeof(buf)-1);
+ p=buf;
+ port_str=strsep(&p, "/");
+ dad=strsep(&p, "/");
+
+ /* send setup message, if we already have a callref */
+ if (call->ref)
+ send_setup_to_lcr(call);
+
+ if (lcr_debug)
+ ast_verbose("Call: ext:%s dest:(%s) -> dad(%s) \n", ast->exten,dest, dad);
+
+#warning hier müssen wi eine der geholten REFs nehmen und ein SETUP schicken, die INFOS zum SETUP stehen im Ast pointer drin, bzw. werden hier übergeben.
- /* close socket */
- close(sock);
- /* now we say good bye */
- if (ret)
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+static int lcr_digit(struct ast_channel *ast, char digit)
+{
+ union parameter newparam;
+ char buf[]="x";
+
+ if (!call) return -1;
+
+ /* only pass IA5 number space */
+ if (digit > 126 || digit < 32)
+ return 0;
+
+ pthread_mutex_lock(&chan_lock);
+
+ /* send information or queue them */
+ if (call->ref && call->state == CHAN_LCR_STATE_OUT_DIALING)
+ {
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.dialinginfo.id[0] = digit;
+ newparam.dialinginfo.id[1] = '\0';
+ send_message(MESSAGE_INFORMATION, call->ref, &newparam);
+ } else
+ if (!call->ref
+ && (call->state == CHAN_LCR_STATE_OUT_PREPARE || call->state == CHAN_LCR_STATE_OUT_SETUP));
{
- printf("%s\n", ret);
- exit(EXIT_FAILURE);
+ *buf = digit;
+ strncat(call->dialque, buf, strlen(char->dialque)-1);
}
+
+ pthread_mutex_unlock(&chan_lock);
+
+ return(0);
+}
+
+static int lcr_answer(struct ast_channel *c)
+{
+ union parameter newparam;
+ struct chan_call *call=c->tech_pvt;
+
+ if (!call) return -1;
+
+ pthread_mutex_lock(&chan_lock);
+
+ /* check bridged connectinfo */
+ if (call->bchannel)
+ if (call->bchannel->bridge_channel)
+ if (call->bchannel->bridge_channel->call)
+ {
+ memcpy(call->connectinfo, call->bchannel->bridge_channel->call->connectinfo, sizeof(struct connect_info));
+ }
+ /* send connect message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ memcpy(param->connectinfo, call->connectinfo, sizeof(struct connect_info));
+ send_message(MESSAGE_CONNECT, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_CONNECT;
+
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
}
+static int lcr_hangup(struct ast_channel *ast)
+{
+ union parameter newparam;
+ struct chan_call *call = ast->tech_pvt;
+ if (!call)
+ return 0;
+
+ pthread_mutex_lock(&chan_lock);
+ /* disconnect asterisk, maybe not required */
+ ast->tech_pvt = NULL;
+ if (call->ref)
+ {
+ /* release */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = CAUSE_RESSOURCEUNAVAIL;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_RELEASE, call->ref, &newparam);
+ /* remove call */
+ free_call(call);
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+ } else
+ {
+ /* ref is not set, due to prepare setup or release */
+ if (call->state == CHAN_LCR_STATE_RELEASE)
+ {
+ /* we get the response to our release */
+ free_call(call);
+ } else
+ {
+ /* during prepare, we change to release state */
+ call->state = CHAN_LCR_STATE_RELEASE;
+ }
+ }
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+static int lcr_write(struct ast_channel *ast, struct ast_frame *f)
+{
+ struct chan_call *call= ast->tech_pvt;
+ if (!call) return 0;
+ pthread_mutex_lock(&chan_lock);
+ pthread_mutex_unlock(&chan_lock);
+}
+
+
+static struct ast_frame *lcr_read(struct ast_channel *ast)
+{
+ struct chan_call *call = ast->tech_pvt;
+ if (!call) return 0;
+ pthread_mutex_lock(&chan_lock);
+ pthread_mutex_unlock(&chan_lock);
+}
+
+static int lcr_indicate(struct ast_channel *ast, int cond, const void *data, size_t datalen)
+{
+ union parameter newparam;
+ int res = -1;
+ if (!call) return -1;
+
+ pthread_mutex_lock(&chan_lock);
+
+ switch (cond) {
+ case AST_CONTROL_BUSY:
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = 17;
+ newparam.disconnectinfo.location = 5;
+ send_message(MESSAGE_DISCONNECT, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_DISCONNECT;
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+ case AST_CONTROL_CONGESTION:
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return -1;
+ case AST_CONTROL_RINGING:
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ send_message(MESSAGE_ALERTING, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_ALERTING;
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+ case -1:
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+
+ case AST_CONTROL_VIDUPDATE:
+ res = -1;
+ break;
+ case AST_CONTROL_HOLD:
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_HOLD;
+ send_message(MESSAGE_NOTIFY, call->ref, &newparam);
+ break;
+ case AST_CONTROL_UNHOLD:
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
+ send_message(MESSAGE_NOTIFY, call->ref, &newparam);
+ break;
+
+ default:
+ ast_log(LOG_WARNING, "Don't know how to display condition %d on %s\n", cond, c->name);
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ /* return */
+ pthread_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+static struct ast_channel_tech lcr_tech = {
+ .type=lcr_type,
+ .description="Channel driver for connecting to Linux-Call-Router",
+ .capabilities=AST_FORMAT_ALAW,
+ .requester=lcr_request,
+ .send_digit=lcr_digit,
+ .call=lcr_call,
+ .bridge=lcr_bridge,
+ .hangup=lcr_hangup,
+ .answer=lcr_answer,
+ .read=lcr_read,
+ .write=lcr_write,
+ .indicate=lcr_indicate,
+// .fixup=lcr_fixup,
+// .send_text=lcr_send_text,
+ .properties=0
+};
+
+#warning das muss mal aus der config datei gelesen werden:
+char lcr_context[]="from-lcr";
+
+
+TODO: muss oben ins lcr_in setup und ins lcr_request
+static struct ast_channel *lcr_ast_new(struct chan_call *call, char *exten, char *callerid, int ref)
+{
+ struct ast_channel *tmp;
+ char *cid_name = 0, *cid_num = 0;
+
+
+ if (callerid)
+ ast_callerid_parse(callerid, &cid_name, &cid_num);
+
+ tmp = ast_channel_alloc(1, AST_STATE_RESERVED, cid_num, cid_name, "", exten, "", 0, "%s/%d", lcr_type, ref);
+
+ if (tmp) {
+ tmp->tech = &lcr_tech;
+ tmp->writeformat = AST_FORMAT_ALAW;
+ tmp->readformat = AST_FORMAT_ALAW;
+
+ ast_copy_string(tmp->context, lcr_context, AST_MAX_CONTEXT);
+
+ }
+
+ return tmp;
+}
+
+
+
+/*
+ * cli
+ */
+static int lcr_show_lcr (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_show_calls (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_reload_routing (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_reload_interfaces (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_port_block (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_port_unblock (int fd, int argc, char *argv[])
+{
+}
+
+static int lcr_port_unload (int fd, int argc, char *argv[])
+{
+}
+
+static struct ast_cli_entry cli_show_lcr =
+{ {"lcr", "show", "lcr", NULL},
+ lcr_show_lcr,
+ "Shows current states of LCR core",
+ "Usage: lcr show lcr\n",
+};
+
+static struct ast_cli_entry cli_show_calls =
+{ {"lcr", "show", "calls", NULL},
+ lcr_show_calls,
+ "Shows current calls made by LCR and Asterisk",
+ "Usage: lcr show calls\n",
+};
+
+static struct ast_cli_entry cli_reload_routing =
+{ {"lcr", "reload", "routing", NULL},
+ lcr_reload_routing,
+ "Reloads routing conf of LCR, current uncomplete calls will be disconnected",
+ "Usage: lcr reload routing\n",
+};
+
+static struct ast_cli_entry cli_reload_interfaces =
+{ {"lcr", "reload", "interfaces", NULL},
+ lcr_reload_interfaces,
+ "Reloads interfaces conf of LCR",
+ "Usage: lcr reload interfaces\n",
+};
+
+static struct ast_cli_entry cli_port_block =
+{ {"lcr", "port", "block", NULL},
+ lcr_port_block,
+ "Blocks LCR port for further calls",
+ "Usage: lcr port block \"<port>\"\n",
+};
+
+static struct ast_cli_entry cli_port_unblock =
+{ {"lcr", "port", "unblock", NULL},
+ lcr_port_unblock,
+ "Unblocks or loads LCR port, port is opened my mISDN",
+ "Usage: lcr port unblock \"<port>\"\n",
+};
+
+static struct ast_cli_entry cli_port_unload =
+{ {"lcr", "port", "unload", NULL},
+ lcr_port_unload,
+ "Unloads LCR port, port is closes by mISDN",
+ "Usage: lcr port unload \"<port>\"\n",
+};
+
+
+/*
+ * module loading and destruction
+ */
+int load_module(void)
+{
+// ast_mutex_init(&release_lock);
+
+// lcr_cfg_update_ptp();
+
+ pthread_mutex_init(&chan_lock, NULL);
+
+ if (!(lcr_sock = open_socket())) {
+ ast_log(LOG_ERROR, "Unable to connect\n");
+ lcr_sock = -1;
+ /* continue with closed socket */
+ }
+
+ if (!bchannel_initialize()) {
+ ast_log(LOG_ERROR, "Unable to open mISDN device\n");
+ close_socket(lcr_sock);
+ return -1;
+ }
+ mISDN_created = 1;
+
+ if (ast_channel_register(&lcr_tech)) {
+ ast_log(LOG_ERROR, "Unable to register channel class\n");
+ bchannel_deinitialize();
+ close_socket(lcr_sock);
+ return -1;
+ }
+
+#if 0
+ ast_cli_register(&cli_show_lcr);
+ ast_cli_register(&cli_show_calls);
+
+ ast_cli_register(&cli_reload_routing);
+ ast_cli_register(&cli_reload_interfaces);
+ ast_cli_register(&cli_port_block);
+ ast_cli_register(&cli_port_unblock);
+ ast_cli_register(&cli_port_unload);
+
+ ast_register_application("misdn_set_opt", misdn_set_opt_exec, "misdn_set_opt",
+ "misdn_set_opt(:<opt><optarg>:<opt><optarg>..):\n"
+ "Sets mISDN opts. and optargs\n"
+ "\n"
+ "The available options are:\n"
+ " d - Send display text on called phone, text is the optparam\n"
+ " n - don't detect dtmf tones on called channel\n"
+ " h - make digital outgoing call\n"
+ " c - make crypted outgoing call, param is keyindex\n"
+ " e - perform echo cancelation on this channel,\n"
+ " takes taps as arguments (32,64,128,256)\n"
+ " s - send Non Inband DTMF as inband\n"
+ " vr - rxgain control\n"
+ " vt - txgain control\n"
+ );
+
+
+ lcr_cfg_get( 0, LCR_GEN_TRACEFILE, global_tracefile, BUFFERSIZE);
+
+ chan_lcr_log(0, 0, "-- mISDN Channel Driver Registred -- (BE AWARE THIS DRIVER IS EXPERIMENTAL!)\n");
+=======
+ //lcr_cfg_get( 0, LCR_GEN_TRACEFILE, global_tracefile, BUFFERSIZE);
+#endif
+
+ quit = 1;
+ if ((pthread_create(&chan_tid, NULL, chan_thread, arg)<0))
+ {
+ failed to create thread
+ bchannel_deinitialize();
+ close_socket(lcr_sock);
+ ast_channel_unregister(&lcr_tech);
+ return -1;
+ }
+ return 0;
+}
+
+int unload_module(void)
+{
+ /* First, take us out of the channel loop */
+ ast_log(LOG_VERBOSE, "-- Unregistering mISDN Channel Driver --\n");
+
+ quit = 1;
+ pthread_join(chan_tid, NULL);
+
+ ast_channel_unregister(&lcr_tech);
+
+ if (mISDN_created) {
+ bchannel_deinitialize();
+ mISDN_created = 0;
+ }
+
+ if (lcr_sock >= 0) {
+ close(lcr_sock);
+ lcr_sock = -1;
+ }
+
+ return 0;
+}
+
+static int reload_module(void)
+{
+// reload_config();
+ return 0;
+}
+
+
+ast_mutex_t usecnt_lock;
+int usecnt;
+
+int usecount(void)
+{
+ int res;
+ ast_mutex_lock(&usecnt_lock);
+ res = usecnt;
+ ast_mutex_unlock(&usecnt_lock);
+ return res;
+}
+
+
+char *desc="Channel driver for lcr";
+
+char *description(void)
+{
+ return desc;
+}
+
+char *key(void)
+{
+ return ASTERISK_GPL_KEY;
+}
+#define AST_MODULE "chan_lcr"
+AST_MODULE_INFO(ASTERISK_GPL_KEY,
+ AST_MODFLAG_DEFAULT,
+ "Channel driver for LCR",
+ .load = load_module,
+ .unload = unload_module,
+ .reload = reload_module,
+ );
projects / lcr.git / blobdiff