/*
-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".
*/
+#warning reconnect after socket closed, release all calls.
+#warning debug of call handling
+#warning 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 <semaphore.h>
+
+#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>
+
#include "extension.h"
#include "message.h"
#include "lcrsocket.h"
#include "cause.h"
#include "bchannel.h"
#include "chan_lcr.h"
+#include "callerid.h"
+
+CHAN_LCR_STATE // state description structure
+
+int lcr_debug=1;
+int mISDN_created=1;
+
+char lcr_type[]="lcr";
+
+pthread_t chan_tid;
+ast_mutex_t chan_lock;
+int quit;
+
+int glob_channel = 0;
int lcr_sock = -1;
struct admin_msg msg;
} *admin_first = NULL;
+static struct ast_channel_tech lcr_tech;
+
/*
* channel and call instances
*/
return(call);
}
+#if 0
+struct chan_call *find_call_ast(struct ast_channel *ast)
+{
+ struct chan_call *call = call_first;
+
+ while(call)
+ {
+ if (call->ast == ast)
+ break;
+ call = call->next;
+ }
+ return(call);
+}
+
struct chan_call *find_call_handle(unsigned long handle)
{
struct chan_call *call = call_first;
}
return(call);
}
+#endif
struct chan_call *alloc_call(void)
{
callp = &((*callp)->next);
*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->bchannel)
+ {
+ if (call->bchannel->call)
+ call->bchannel->call = NULL;
+ }
+ if (call->bridge_call)
+ {
+ if (call->bridge_call->bridge_call)
+ call->bridge_call->bridge_call = NULL;
+ }
free(call);
return;
}
}
}
-unsigned short new_brige_id(void)
+unsigned short new_bridge_id(void)
{
struct chan_call *call;
unsigned short id = 1;
}
/*
+ * 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;
+ struct ast_channel *ast = call->ast;
+
+ if (!call->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 4:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_SUBSCRIBER;
+ break;
+ case 2:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_NATIONAL;
+ break;
+ case 1:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_INTERNATIONAL;
+ break;
+ default:
+ newparam.setup.callerinfo.ntype = INFO_NTYPE_UNKNOWN;
+ }
+ newparam.setup.capainfo.bearer_capa = ast->transfercapability;
+#warning todo
+// 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;
+}
+
+/*
+ * 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 (!call->ast || !call->ref || !call->dialque)
+ return;
+
+ /* send setup message to LCR */
+ memset(&newparam, 0, sizeof(union parameter));
+ strncpy(newparam.information.id, call->dialque, sizeof(newparam.information.id)-1);
+ call->dialque[0] = '\0';
+ send_message(MESSAGE_INFORMATION, call->ref, &newparam);
+}
+
+/*
+ * 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->bridge_call) return;
+ send_message(MESSAGE_RELEASE, call->bridge_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 */
+#warning anstatt vom lcr "setup.exten" zu bekommen, sollten wir den context übertragen, der dann in der channel.conf zu dem richtigen ruleset führt.
+ ast = ast_channel_alloc(1, AST_STATE_RESERVED, NULL, NULL, "", NULL, "", 0, "%s/%d", lcr_type, ++glob_channel);
+ if (!call->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])
+ strncpy(ast->exten, param->setup.exten, AST_MAX_EXTENSION);
+ if (param->setup.callerinfo.id[0])
+ ast->cid.cid_num = strdup(param->setup.callerinfo.id);
+ if (param->setup.callerinfo.name[0])
+ ast->cid.cid_name = strdup(param->setup.callerinfo.name);
+#warning todo
+#if 0
+ if (param->setup.redirinfo.id[0])
+ ast->cid.cid_name = strdup(numberrize_callerinfo(param->setup.callerinfo.name, param->setup.callerinfo.ntype, configfile->prefix_nat, configfile->prefix_inter));
+#endif
+ switch (param->setup.callerinfo.present)
+ {
+ case INFO_PRESENT_ALLOWED:
+ ast->cid.cid_pres = AST_PRES_ALLOWED;
+ break;
+ case INFO_PRESENT_RESTRICTED:
+ ast->cid.cid_pres = AST_PRES_RESTRICTED;
+ break;
+ default:
+ ast->cid.cid_pres = AST_PRES_UNAVAILABLE;
+ }
+ switch (param->setup.callerinfo.ntype)
+ {
+ case INFO_NTYPE_SUBSCRIBER:
+ ast->cid.cid_ton = 4;
+ break;
+ case INFO_NTYPE_NATIONAL:
+ ast->cid.cid_ton = 2;
+ break;
+ case INFO_NTYPE_INTERNATIONAL:
+ ast->cid.cid_ton = 1;
+ break;
+ default:
+ ast->cid.cid_ton = 0;
+ }
+ ast->transfercapability = param->setup.capainfo.bearer_capa;
+
+ /* configure channel */
+#warning todo
+#if 0
+ ast->nativeformat = configfile->lawformat;
+ ast->readformat = ast->rawreadformat = configfile->lawformat;
+ ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+#endif
+ 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(call->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(call->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, ¶m->connectinfo, sizeof(struct connect_info));
+ /* send event to asterisk */
+ if (call->ast)
+ ast_queue_control(call->ast, AST_CONTROL_ANSWER);
+}
+
+/*
+ * incoming disconnect from LCR
+ */
+static void lcr_in_disconnect(struct chan_call *call, int message_type, union parameter *param)
+{
+ struct ast_channel *ast = call->ast;
+ 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->bridge_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, call->ref, &newparam);
+ call->ref = 0;
+ /* release asterisk */
+ ast->hangupcause = call->cause;
+ ast_queue_hangup(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)
+{
+ struct ast_channel *ast = call->ast;
+
+ /* release ref */
+ call->ref = 0;
+ /* change to release state */
+ call->state = CHAN_LCR_STATE_RELEASE;
+ /* copy release info */
+ if (!call->cause)
+ {
+ call->cause = param->disconnectinfo.cause;
+ call->location = param->disconnectinfo.location;
+ }
+ /* if we have an asterisk instance, send hangup, else we are done */
+ if (ast)
+ {
+ ast->hangupcause = call->cause;
+ ast_queue_hangup(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->information.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);
}
/* link to call */
if ((call = find_call_ref(ref)))
{
- bchannel->ref = ref;
- call->bchannel_handle = param->bchannel.handle;
+ bchannel->call = call;
+ call->bchannel = bchannel;
#warning hier muesen alle stati gesetzt werden falls sie vor dem b-kanal verfügbar waren
- bchannel_join(call->bridge_id);
+ if (call->bridge_id)
+ 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)))
{
- alle fprintf nach ast_log
- 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 */
- if ((call = find_call_ref(bchannel->ref)))
- {
- call->bchannel_handle = 0;
- }
- /* destroy and remove bchannel */
+ /* unklink from call and destroy bchannel */
free_bchannel(bchannel);
/* acknowledge */
/* new ref from lcr */
if (!ref || find_call_ref(ref))
{
- fprintf(stderr, "illegal new ref %d received\n", ref);
+ fprintf(stderr, "illegal new ref %ld 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 */
+ if (call->cause)
+ {
+ newparam.disconnectinfo.cause = call->cause;
+ newparam.disconnectinfo.location = call->location;
+ } else
+ {
+ newparam.disconnectinfo.cause = 16;
+ newparam.disconnectinfo.location = 5;
+ }
+ send_message(MESSAGE_RELEASE, ref, &newparam);
+ /* free call */
+ free_call(call);
+ return(0);
+ }
}
return(0);
}
switch(message_type)
{
case MESSAGE_SETUP:
-todo
+ lcr_in_setup(call, message_type, param);
break;
case MESSAGE_OVERLAP:
-todo
+ lcr_in_overlap(call, message_type, param);
break;
case MESSAGE_PROCEEDING:
-todo
+ lcr_in_proceeding(call, message_type, param);
break;
case MESSAGE_ALERTING:
-todo
+ lcr_in_alerting(call, message_type, param);
break;
case MESSAGE_CONNECT:
-todo
+ lcr_in_connect(call, message_type, param);
break;
case MESSAGE_DISCONNECT:
-todo
+ lcr_in_disconnect(call, message_type, param);
break;
case MESSAGE_RELEASE:
-todo
- free_call(call);
- return(0);
+ lcr_in_release(call, message_type, param);
+ break;
case MESSAGE_INFORMATION:
-todo
+ lcr_in_information(call, message_type, param);
+ break;
+
+ case MESSAGE_NOTIFY:
+ lcr_in_notify(call, message_type, param);
break;
case MESSAGE_FACILITY:
-todo
+ lcr_in_facility(call, message_type, param);
break;
case MESSAGE_PATTERN:
-todo
+#warning todo
break;
case MESSAGE_NOPATTERN:
-todo
+#warning todo
break;
case MESSAGE_AUDIOPATH:
-todo
+#warning todo
break;
default:
-unhandled
+#warning unhandled
+ break;
}
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)
}
/*
- * open and close socket
+ * open and close socket and thread
*/
int open_socket(void)
{
char *socket_name = SOCKET_NAME;
int conn;
struct sockaddr_un sock_address;
- int ret;
unsigned long on = 1;
union parameter param;
close(sock);
}
-
-void lcr_thread(void)
+static void *chan_thread(void *arg)
{
int work;
- while(42)
+ ast_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)
+ {
+ ast_mutex_unlock(&chan_lock);
usleep(30000);
+ ast_mutex_lock(&chan_lock);
+ }
}
+
+ ast_mutex_unlock(&chan_lock);
+
+ return NULL;
}
-/* call from asterisk (new instance) */
-static int lcr_call(struct ast_channel *ast, char *dest, int timeout)
+/*
+ * new asterisk instance
+ */
+static struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
{
- int port=0;
- int r;
- struct chan_list *ch=MISDN_ASTERISK_TECH_PVT(ast);
- struct misdn_bchannel *newbc;
- char *opts=NULL, *ext;
- char dest_cp[256];
-
+ union parameter newparam;
+ struct ast_channel *ast;
+ struct chan_call *call;
+
+ ast_mutex_lock(&chan_lock);
+
+ /* create call instance */
+ call = alloc_call();
+ if (!call)
{
- strncpy(dest_cp,dest,sizeof(dest_cp)-1);
- dest_cp[sizeof(dest_cp)]=0;
-
- ext=dest_cp;
- strsep(&ext,"/");
- if (ext) {
- opts=ext;
- strsep(&opts,"/");
- } else {
- ast_log(LOG_WARNING, "Malformed dialstring\n");
- return -1;
- }
+ /* failed to create instance */
+ return NULL;
}
-
- if (!ast) {
- ast_log(LOG_WARNING, " --> ! misdn_call called on ast_channel *ast where ast == NULL\n");
- return -1;
+ /* create asterisk channel instrance */
+ ast = ast_channel_alloc(1, AST_STATE_RESERVED, NULL, NULL, "", NULL, "", 0, "%s/%d", lcr_type, ++glob_channel);
+ 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 */
+ snprintf(ast->name, sizeof(ast->name), "%s/%d", lcr_type, ++glob_channel);
+ ast->name[sizeof(ast->name)-1] = '\0';
+#warning todo
+#if 0
+ ast->nativeformat = configfile->lawformat;
+ ast->readformat = ast->rawreadformat = configfile->lawformat;
+ ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+#endif
+ 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;
- if (((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) || !dest ) {
- ast_log(LOG_WARNING, " --> ! misdn_call called on %s, neither down nor reserved (or dest==NULL)\n", ast->name);
- ast->hangupcause=41;
- ast_setstate(ast, AST_STATE_DOWN);
- return -1;
- }
+ ast_mutex_unlock(&chan_lock);
- if (!ch) {
- ast_log(LOG_WARNING, " --> ! misdn_call called on %s, neither down nor reserved (or dest==NULL)\n", ast->name);
- ast->hangupcause=41;
- ast_setstate(ast, AST_STATE_DOWN);
- return -1;
- }
-
- newbc=ch->bc;
-
- if (!newbc) {
- ast_log(LOG_WARNING, " --> ! misdn_call called on %s, neither down nor reserved (or dest==NULL)\n", ast->name);
- ast->hangupcause=41;
- ast_setstate(ast, AST_STATE_DOWN);
- return -1;
+ return ast;
+}
+
+/*
+ * call from asterisk
+ */
+static int lcr_call(struct ast_channel *ast, char *dest, int timeout)
+{
+ struct chan_call *call=ast->tech_pvt;
+
+ if (!call) return -1;
+
+ ast_mutex_lock(&chan_lock);
+
+#warning hier muss noch
+#if 0
+ ast_copy_string(buf, dest, sizeof(buf)-1);
+ p=buf;
+ port_str=strsep(&p, "/");
+ dad=strsep(&p, "/");
+#endif
+
+ /* 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);
+
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+static int lcr_digit(struct ast_channel *ast, char digit)
+{
+ struct chan_call *call = ast->tech_pvt;
+ union parameter newparam;
+ char buf[]="x";
+
+ if (!call) return -1;
+
+ /* only pass IA5 number space */
+ if (digit > 126 || digit < 32)
+ return 0;
+
+ ast_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.information.id[0] = digit;
+ newparam.information.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));
+ {
+ *buf = digit;
+ strncat(call->dialque, buf, strlen(call->dialque)-1);
}
-
- port=newbc->port;
+ ast_mutex_unlock(&chan_lock);
- chan_misdn_log(1, port, "* CALL: %s\n",dest);
+ return(0);
+}
+
+static int lcr_answer(struct ast_channel *ast)
+{
+ union parameter newparam;
+ struct chan_call *call = ast->tech_pvt;
- chan_misdn_log(2, port, " --> * dad:%s tech:%s ctx:%s\n",ast->exten,ast->name, ast->context);
+ if (!call) return -1;
+
+ ast_mutex_lock(&chan_lock);
+
+ /* copy connectinfo, if bridged */
+ if (call->bridge_call)
+ memcpy(&call->connectinfo, &call->bridge_call->connectinfo, sizeof(struct connect_info));
+ /* send connect message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ memcpy(&newparam.connectinfo, &call->connectinfo, sizeof(struct connect_info));
+ send_message(MESSAGE_CONNECT, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_CONNECT;
- chan_misdn_log(3, port, " --> * adding2newbc ext %s\n",ast->exten);
- if (ast->exten) {
- int l = sizeof(newbc->dad);
- strncpy(ast->exten,ext,sizeof(ast->exten));
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
- strncpy(newbc->dad,ext,l);
+static int lcr_hangup(struct ast_channel *ast)
+{
+ union parameter newparam;
+ struct chan_call *call = ast->tech_pvt;
- newbc->dad[l-1] = 0;
- }
- newbc->rad[0]=0;
- chan_misdn_log(3, port, " --> * adding2newbc callerid %s\n",AST_CID_P(ast));
- if (ast_strlen_zero(newbc->oad) && AST_CID_P(ast) ) {
+ if (!call)
+ return 0;
- if (AST_CID_P(ast)) {
- int l = sizeof(newbc->oad);
- strncpy(newbc->oad,AST_CID_P(ast), l);
- newbc->oad[l-1] = 0;
+ ast_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);
+ ast_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;
}
+ }
+ ast_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;
+ ast_mutex_lock(&chan_lock);
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+
+static struct ast_frame *lcr_read(struct ast_channel *ast)
+{
+ struct chan_call *call = ast->tech_pvt;
+ if (!call) return 0;
+ ast_mutex_lock(&chan_lock);
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+static int lcr_indicate(struct ast_channel *ast, int cond, const void *data, size_t datalen)
+{
+ struct chan_call *call = ast->tech_pvt;
+ union parameter newparam;
+ int res = -1;
+
+ if (!call) return -1;
+
+ ast_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 */
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+ case AST_CONTROL_CONGESTION:
+ /* return */
+ ast_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 */
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+ case -1:
+ /* return */
+ ast_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, ast->name);
+ /* return */
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ /* return */
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+/*
+ * bridge process
+ */
+enum ast_bridge_result lcr_bridge(struct ast_channel *ast1,
+ struct ast_channel *ast2, int flags,
+ struct ast_frame **fo,
+ struct ast_channel **rc, int timeoutms)
+
+{
+ struct chan_call *call1, *call2;
+ struct ast_channel *carr[2], *who;
+ int to = -1;
+ struct ast_frame *f;
+ int bridge_id;
+
+#if 0
+ if (config nobridge) {
+ ast_log(LOG_NOTICE, "Falling back to Asterisk bridging\n");
+ return AST_BRIDGE_FAILED;
}
+ if (! (flags&AST_BRIDGE_DTMF_CHANNEL_0) )
+ call1->ignore_dtmf=1;
+
+ if (! (flags&AST_BRIDGE_DTMF_CHANNEL_1) )
+ call2->ignore_dtmf=1;
+#endif
+
+ /* join via dsp (if the channels are currently open) */
+ bridge_id = new_bridge_id();
+ ast_mutex_lock(&chan_lock);
+ call1 = ast1->tech_pvt;
+ call2 = ast2->tech_pvt;
+ if (call1)
{
- struct chan_list *ch=MISDN_ASTERISK_TECH_PVT(ast);
- if (!ch) { ast_verbose("No chan_list in misdn_call\n"); return -1;}
-
- newbc->capability=ast->transfercapability;
- pbx_builtin_setvar_helper(ast,"TRANSFERCAPABILITY",ast_transfercapability2str(newbc->capability));
- if ( ast->transfercapability == INFO_CAPABILITY_DIGITAL_UNRESTRICTED) {
- chan_misdn_log(2, port, " --> * Call with flag Digital\n");
+ call1->bridge_id = bridge_id;
+ if (call1->bchannel)
+ bchannel_join(call1->bchannel, bridge_id);
+ }
+ if (call2)
+ {
+ call2->bridge_id = bridge_id;
+ if (call2->bchannel)
+ bchannel_join(call2->bchannel, bridge_id);
+ }
+ ast_mutex_unlock(&chan_lock);
+
+ while(1) {
+ who = ast_waitfor_n(carr, 2, &to);
+
+ if (!who) {
+ ast_log(LOG_NOTICE,"misdn_bridge: empty read, breaking out\n");
+ break;
+ }
+ f = ast_read(who);
+
+ if (!f || f->frametype == AST_FRAME_CONTROL) {
+ /* got hangup .. */
+ *fo=f;
+ *rc=who;
+ break;
}
+ if ( f->frametype == AST_FRAME_DTMF ) {
+ *fo=f;
+ *rc=who;
+ break;
+ }
+
+#warning kann einfach gesendet werden. dsp slittet automatisch, wenn frames kommen, bis der fifo leer ist.
+#if 0
+ if (f->frametype == AST_FRAME_VOICE) {
+
+ continue;
+ }
+#endif
- /* update screening and presentation */
- update_config(ch,ORG_AST);
-
- /* fill in some ies from channel vary*/
- import_ch(ast, newbc, ch);
-
- /* Finally The Options Override Everything */
- if (opts)
- misdn_set_opt_exec(ast,opts);
- else
- chan_misdn_log(2,port,"NO OPTS GIVEN\n");
-
- /*check for bridging*/
- int bridging;
- misdn_cfg_get( 0, MISDN_GEN_BRIDGING, &bridging, sizeof(int));
- if (bridging && ch->other_ch) {
- chan_misdn_log(1, port, "Disabling EC (aka Pipeline) on both Sides\n");
- *ch->bc->pipeline=0;
- *ch->other_ch->bc->pipeline=0;
+ if (who == ast1) {
+ ast_write(ast2,f);
}
-
- r=misdn_lib_send_event( newbc, EVENT_SETUP );
-
- /** we should have l3id after sending setup **/
- ch->l3id=newbc->l3_id;
+ else {
+ ast_write(ast1,f);
+ }
+
}
- if ( r == -ENOCHAN ) {
- chan_misdn_log(0, port, " --> * Theres no Channel at the moment .. !\n");
- chan_misdn_log(1, port, " --> * SEND: State Down pid:%d\n",newbc?newbc->pid:-1);
- ast->hangupcause=34;
- ast_setstate(ast, AST_STATE_DOWN);
- return -1;
+ /* split channels */
+ ast_mutex_lock(&chan_lock);
+ call1 = ast1->tech_pvt;
+ call2 = ast2->tech_pvt;
+ if (call1)
+ {
+ call1->bridge_id = 0;
+ if (call1->bchannel)
+ bchannel_join(call1->bchannel, 0);
}
+ if (call2)
+ {
+ call2->bridge_id = 0;
+ if (call2->bchannel)
+ bchannel_join(call2->bchannel, 0);
+ }
+ ast_mutex_unlock(&chan_lock);
- chan_misdn_log(2, port, " --> * SEND: State Dialing pid:%d\n",newbc?newbc->pid:1);
-
- ast_setstate(ast, AST_STATE_DIALING);
- ast->hangupcause=16;
-
-wenn pattern available soll gestoppt werden, sonst nicht:
- if (newbc->nt) stop_bc_tones(ch);
-
- ch->state=MISDN_CALLING;
- return 0;
+ return AST_BRIDGE_COMPLETE;
}
-
-
-static struct ast_channel_tech misdn_tech = {
- .type="lcr",
+static struct ast_channel_tech lcr_tech = {
+ .type=lcr_type,
.description="Channel driver for connecting to Linux-Call-Router",
- .capabilities= je nach option?AST_FORMAT_ALAW:AST_FORMAT_ULAW ,
+ .capabilities=AST_FORMAT_ALAW,
.requester=lcr_request,
- .send_digit=lcr_digit,
+ .send_digit_begin=lcr_digit,
.call=lcr_call,
.bridge=lcr_bridge,
.hangup=lcr_hangup,
.answer=lcr_answer,
.read=lcr_read,
.write=lcr_write,
- .indicate=lcr_indication,
- .fixup=lcr_fixup,
- .send_text=lcr_send_text,
+ .indicate=lcr_indicate,
+// .fixup=lcr_fixup,
+// .send_text=lcr_send_text,
.properties=0
};
+
/*
* cli
*/
-static int cli_show_lcr (int fd, int argc, char *argv[])
+static int lcr_show_lcr (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_show_calls (int fd, int argc, char *argv[])
+static int lcr_show_calls (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_reload_routing (int fd, int argc, char *argv[])
+static int lcr_reload_routing (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_reload_interfaces (int fd, int argc, char *argv[])
+static int lcr_reload_interfaces (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_port_block (int fd, int argc, char *argv[])
+static int lcr_port_block (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_port_unblock (int fd, int argc, char *argv[])
+static int lcr_port_unblock (int fd, int argc, char *argv[])
{
+ return 0;
}
-static int cli_port_unload (int fd, int argc, char *argv[])
+static int lcr_port_unload (int fd, int argc, char *argv[])
{
+ return 0;
}
static struct ast_cli_entry cli_show_lcr =
// lcr_cfg_update_ptp();
+ ast_mutex_init(&chan_lock);
+
if (!(lcr_sock = open_socket())) {
- ast_log(LOG_ERROR, "Unable to connect %s\n", misdn_type);
+ 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");
- unload_module();
+ close_socket(lcr_sock);
return -1;
}
mISDN_created = 1;
if (ast_channel_register(&lcr_tech)) {
- ast_log(LOG_ERROR, "Unable to register channel class %s\n", misdn_type);
- unload_module();
+ 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);
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, NULL)<0))
+ {
+ /* failed to create thread */
+ bchannel_deinitialize();
+ close_socket(lcr_sock);
+ ast_channel_unregister(&lcr_tech);
+ return -1;
+ }
return 0;
}
{
/* First, take us out of the channel loop */
ast_log(LOG_VERBOSE, "-- Unregistering mISDN Channel Driver --\n");
+
+ quit = 1;
+ pthread_join(chan_tid, NULL);
- misdn_tasks_destroy();
-
- if (!g_config_initialized) return 0;
-
- ast_cli_unregister(&cli_show_lcr);
- ast_cli_unregister(&cli_show_calls);
- ast_cli_unregister(&cli_reload_routing);
- ast_cli_unregister(&cli_reload_interfaces);
- ast_cli_unregister(&cli_port_block);
- ast_cli_unregister(&cli_port_unblock);
- ast_unregister_application("misdn_set_opt");
-
ast_channel_unregister(&lcr_tech);
if (mISDN_created) {
lcr_sock = -1;
}
- was ist mit dem mutex
-
return 0;
}
-int reload(void)
+static int reload_module(void)
{
- reload_config();
-
+// reload_config();
return 0;
}
+
+ast_mutex_t usecnt_lock;
+int usecnt;
+
int usecount(void)
{
int res;
return res;
}
+
+char *desc="Channel driver for lcr";
+
char *description(void)
{
return desc;
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,
+ );