*/
-#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>
CHAN_LCR_STATE // state description structure
+u_char flip_bits[256];
+
int lcr_debug=1;
int mISDN_created=1;
char lcr_type[]="lcr";
pthread_t chan_tid;
-ast_mutex_t chan_lock;
+ast_mutex_t chan_lock; /* global lock */
+ast_mutex_t log_lock; /* logging log */
int quit;
int glob_channel = 0;
static struct ast_channel_tech lcr_tech;
/*
+ * logging
+ */
+void chan_lcr_log(int type, const char *file, int line, struct chan_call *call, struct ast_channel *ast, const char *fmt, ...)
+{
+ char buffer[1024];
+ char call_text[128] = "NULL";
+ char ast_text[128] = "NULL";
+ va_list args;
+
+ ast_mutex_lock(&log_lock);
+
+ va_start(args,fmt);
+ vsnprintf(buffer,sizeof(buffer)-1,fmt,args);
+ buffer[sizeof(buffer)-1]=0;
+ va_end(args);
+
+ if (call)
+ sprintf(call_text, "%ld", call->ref);
+ if (ast)
+ strncpy(ast_text, ast->name, sizeof(ast_text)-1);
+ ast_text[sizeof(ast_text)-1] = '\0';
+
+ ast_log(type, file, line, "[call=%s ast=%s] %s", call_text, ast_text, buffer);
+
+ ast_mutex_unlock(&log_lock);
+}
+
+/*
* channel and call instances
*/
struct chan_call *call_first;
}
#endif
-struct chan_call *alloc_call(void)
-{
- struct chan_call **callp = &call_first;
-
- while(*callp)
- callp = &((*callp)->next);
-
- *callp = (struct chan_call *)malloc(sizeof(struct chan_call));
- if (*callp)
- memset(*callp, 0, sizeof(struct chan_call));
- return(*callp);
-}
-
void free_call(struct chan_call *call)
{
struct chan_call **temp = &call_first;
if (*temp == call)
{
*temp = (*temp)->next;
+ if (call->pipe[0])
+ close(call->pipe[0]);
+ if (call->pipe[1])
+ close(call->pipe[1]);
if (call->bchannel)
{
- if (call->bchannel->call)
- call->bchannel->call = NULL;
+ if (call->bchannel->call != call)
+ CERROR(call, NULL, "Linked bchannel structure has no link to us.\n");
+ call->bchannel->call = NULL;
}
if (call->bridge_call)
{
- if (call->bridge_call->bridge_call)
- call->bridge_call->bridge_call = NULL;
+ if (call->bridge_call->bridge_call != call)
+ CERROR(call, NULL, "Linked call structure has no link to us.\n");
+ call->bridge_call->bridge_call = NULL;
}
+ CDEBUG(call, NULL, "Call instance freed.\n");
free(call);
return;
}
temp = &((*temp)->next);
}
+ CERROR(call, NULL, "Call instance not found in list.\n");
+}
+
+struct chan_call *alloc_call(void)
+{
+ struct chan_call **callp = &call_first;
+
+ while(*callp)
+ callp = &((*callp)->next);
+
+ *callp = (struct chan_call *)malloc(sizeof(struct chan_call));
+ if (*callp)
+ memset(*callp, 0, sizeof(struct chan_call));
+ if (pipe((*callp)->pipe) < 0) {
+ CERROR(*callp, NULL, "Failed to create pipe.\n");
+ free_call(*callp);
+ return(NULL);
+ }
+ CDEBUG(*callp, NULL, "Call instance allocated.\n");
+ return(*callp);
}
+
unsigned short new_bridge_id(void)
{
struct chan_call *call;
break;
id++;
}
+ CDEBUG(NULL, NULL, "New bridge ID %d.\n", id);
return(id);
}
/*
- * receive bchannel data
- */
-void rx_data(struct bchannel *bchannel, unsigned char *data, int len)
-{
-}
-
-void rx_dtmf(struct bchannel *bchannel, char tone)
-{
-}
-
-/*
* enque message to LCR
*/
int send_message(int message_type, unsigned long ref, union parameter *param)
{
struct admin_list *admin, **adminp;
+ if (lcr_sock < 0) {
+ CDEBUG(NULL, NULL, "Ignoring message %d, because socket is closed.\n", message_type);
+ return -1;
+ }
+ CDEBUG(NULL, NULL, "Sending message %d to socket.\n", message_type);
+
adminp = &admin_first;
while(*adminp)
adminp = &((*adminp)->next);
if (!call->ast || !call->ref)
return;
+ CDEBUG(call, call->ast, "Sending setup to LCR.\n");
+
/* 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;
}
newparam.setup.capainfo.bearer_capa = ast->transfercapability;
-#warning todo
-// newparam.setup.capainfo.bearer_user = alaw 3, ulaw 2;
+#ifdef TODO
+ newparam.setup.capainfo.bearer_info1 = alaw 3, ulaw 2;
+#endif
+ newparam.setup.capainfo.bearer_info1 = 3;
newparam.setup.capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
newparam.setup.capainfo.hlc = INFO_HLC_NONE;
newparam.setup.capainfo.exthlc = INFO_HLC_NONE;
if (!call->ast || !call->ref || !call->dialque)
return;
+ CDEBUG(call, call->ast, "Sending dial queue to LCR.\n");
+
/* send setup message to LCR */
memset(&newparam, 0, sizeof(union parameter));
strncpy(newparam.information.id, call->dialque, sizeof(newparam.information.id)-1);
/* check bridge */
if (!call) return;
if (!call->bridge_call) return;
- send_message(MESSAGE_RELEASE, call->bridge_call->ref, param);
+ CDEBUG(call, NULL, "Sending message due briding.\n");
+ send_message(message_type, call->bridge_call->ref, param);
+}
+
+/*
+ * check if extension matches and start asterisk
+ * if it can match, proceed
+ * if not, release
+ */
+static void lcr_start_pbx(struct chan_call *call, struct ast_channel *ast, int complete)
+{
+ int cause, ret;
+ union parameter newparam;
+
+ if (complete)
+ {
+ /* if not match */
+ if (!ast_canmatch_extension(ast, ast->context, ast->exten, 1, call->oad))
+ {
+ CDEBUG(call, ast, "Got 'sending complete', but extension '%s' will not match at context '%s' - releasing.\n", ast->exten, ast->context);
+ cause = 1;
+ goto release;
+ }
+ if (!ast_exists_extension(ast, ast->context, ast->exten, 1, call->oad))
+ {
+ CDEBUG(call, ast, "Got 'sending complete', but extension '%s' would match at context '%s', if more digits would be dialed - releasing.\n", ast->exten, ast->context);
+ cause = 28;
+ goto release;
+ }
+ CDEBUG(call, ast, "Got 'sending complete', extensions matches.\n");
+ /* send setup acknowledge to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ send_message(MESSAGE_PROCEEDING, call->ref, &newparam);
+
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_PROCEEDING;
+
+ goto start;
+ }
+
+ if (ast_canmatch_extension(ast, ast->context, ast->exten, 1, call->oad))
+ {
+ /* 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;
+
+ /* if match, start pbx */
+ if (ast_exists_extension(ast, ast->context, ast->exten, 1, call->oad)) {
+ CDEBUG(call, ast, "Extensions matches.\n");
+ goto start;
+ }
+
+ /* if can match */
+ CDEBUG(call, ast, "Extensions may match, if more digits are dialed.\n");
+ return;
+ }
+
+ /* if not match */
+ cause = 1;
+ release:
+ /* release lcr */
+ CDEBUG(call, ast, "Releasing due to extension missmatch.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = cause;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_RELEASE, call->ref, &newparam);
+ call->ref = 0;
+ /* release asterisk */
+ ast->hangupcause = call->cause;
+ /* change to release state */
+ call->state = CHAN_LCR_STATE_RELEASE;
+ ast_hangup(ast); // call will be destroyed here
+ return;
+
+ start:
+ /* send setup to asterisk */
+ CDEBUG(call, ast, "Starting call to Asterisk due to matching extension.\n");
+ ret = ast_pbx_start(ast);
+ if (ret < 0)
+ {
+ cause = (ret==-2)?34:27;
+ goto release;
+ }
+ call->pbx_started = 1;
+ return;
}
/*
struct ast_channel *ast;
union parameter newparam;
+ CDEBUG(call, NULL, "Incomming setup from LCR. (callerid %d, dialing %d)\n", param->setup.callerinfo.id, param->setup.dialinginfo.id);
+
/* 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)
+ if (!ast)
{
/* release */
+ CERROR(call, NULL, "Failed to create Asterisk channel - releasing.\n");
memset(&newparam, 0, sizeof(union parameter));
newparam.disconnectinfo.cause = CAUSE_RESSOURCEUNAVAIL;
newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
call->ast = ast;
ast->tech_pvt = call;
ast->tech = &lcr_tech;
+ ast->fds[0] = call->pipe[0];
/* fill setup information */
- if (param->setup.exten[0])
- strncpy(ast->exten, param->setup.exten, AST_MAX_EXTENSION);
+ if (param->setup.dialinginfo.id)
+ strncpy(ast->exten, param->setup.dialinginfo.id, AST_MAX_EXTENSION-1);
+ if (param->setup.context[0])
+ strncpy(ast->context, param->setup.context, AST_MAX_CONTEXT-1);
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
+#ifdef TODO
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));
+ ast->cid.cid_name = strdup(numberrize_callerinfo(param->setup.callerinfo.id, param->setup.callerinfo.ntype, configfile->prefix_nat, configfile->prefix_inter));
#endif
switch (param->setup.callerinfo.present)
{
ast->cid.cid_ton = 0;
}
ast->transfercapability = param->setup.capainfo.bearer_capa;
+#ifdef TODO
+ strncpy(call->oad, numberrize_callerinfo(param->setup.callerinfo.id, param->setup.callerinfo.ntype, configfile->prefix_nat, configfile->prefix_inter), sizeof(call->oad)-1);
+#else
+ strncpy(call->oad, numberrize_callerinfo(param->setup.callerinfo.id, param->setup.callerinfo.ntype, "0", "00"), sizeof(call->oad)-1);
+#endif
/* configure channel */
-#warning todo
-#if 0
- ast->nativeformat = configfile->lawformat;
+#ifdef TODO
+ ast->nativeformats = configfile->lawformat;
ast->readformat = ast->rawreadformat = configfile->lawformat;
ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+#else
+ ast->nativeformats = AST_FORMAT_ALAW;
+ ast->readformat = ast->rawreadformat = AST_FORMAT_ALAW;
+ ast->writeformat = ast->rawwriteformat = AST_FORMAT_ALAW;
#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;
+ lcr_start_pbx(call, ast, param->setup.dialinginfo.sending_complete);
}
/*
{
if (!call->ast) return;
+ CDEBUG(call, call->ast, "Incomming setup acknowledge from LCR.\n");
+
/* send pending digits in dialque */
if (call->dialque)
send_dialque_to_lcr(call);
*/
static void lcr_in_proceeding(struct chan_call *call, int message_type, union parameter *param)
{
+ CDEBUG(call, call->ast, "Incomming proceeding from LCR.\n");
+
/* change state */
call->state = CHAN_LCR_STATE_OUT_PROCEEDING;
/* send event to asterisk */
- if (call->ast)
+ if (call->ast && call->pbx_started)
ast_queue_control(call->ast, AST_CONTROL_PROCEEDING);
}
*/
static void lcr_in_alerting(struct chan_call *call, int message_type, union parameter *param)
{
+ CDEBUG(call, call->ast, "Incomming alerting from LCR.\n");
+
/* change state */
call->state = CHAN_LCR_STATE_OUT_ALERTING;
/* send event to asterisk */
- if (call->ast)
+ if (call->ast && call->pbx_started)
ast_queue_control(call->ast, AST_CONTROL_RINGING);
}
*/
static void lcr_in_connect(struct chan_call *call, int message_type, union parameter *param)
{
+ CDEBUG(call, call->ast, "Incomming connect (answer) from LCR.\n");
+
/* 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)
+ if (call->ast && call->pbx_started)
ast_queue_control(call->ast, AST_CONTROL_ANSWER);
}
static void lcr_in_disconnect(struct chan_call *call, int message_type, union parameter *param)
{
struct ast_channel *ast = call->ast;
- union parameter newparam;
+
+ CDEBUG(call, call->ast, "Incomming disconnect from LCR. (cause=%d)\n", param->disconnectinfo.cause);
/* change state */
call->state = CHAN_LCR_STATE_IN_DISCONNECT;
call->cause = param->disconnectinfo.cause;
call->location = param->disconnectinfo.location;
/* if bridge, forward disconnect and return */
+#ifdef TODO
+ feature flag
if (call->bridge_call)
{
+ CDEBUG(call, call->ast, "Only signal disconnect via bridge.\n");
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);
+#endif
+ /* release lcr with same cause */
+ send_message(MESSAGE_RELEASE, call->ref, param);
call->ref = 0;
- /* release asterisk */
- ast->hangupcause = call->cause;
- ast_queue_hangup(ast);
/* change to release state */
call->state = CHAN_LCR_STATE_RELEASE;
+ /* release asterisk */
+ if (ast)
+ {
+ ast->hangupcause = call->cause;
+ if (call->pbx_started)
+ ast_queue_hangup(ast);
+ else {
+ ast_hangup(ast); // call will be destroyed here
+ }
+ }
}
/*
{
struct ast_channel *ast = call->ast;
+ CDEBUG(call, call->ast, "Incomming release from LCR. (cause=%d)\n", param->disconnectinfo.cause);
+
/* release ref */
call->ref = 0;
/* change to release state */
if (ast)
{
ast->hangupcause = call->cause;
- ast_queue_hangup(ast);
+ if (call->pbx_started)
+ ast_queue_hangup(ast);
+ else {
+ ast_hangup(ast); // call will be destroyed here
+ }
} else
{
free_call(call);
*/
static void lcr_in_information(struct chan_call *call, int message_type, union parameter *param)
{
+ struct ast_channel *ast = call->ast;
struct ast_frame fr;
char *p;
- if (!call->ast) return;
+ CDEBUG(call, call->ast, "Incomming information from LCR. (dialing=%d)\n", param->information.id);
+
+ if (!ast) return;
+
+ /* pbx not started */
+ if (!call->pbx_started)
+ {
+ CDEBUG(call, call->ast, "Asterisk not started, adding digits to number.\n");
+ strncat(ast->exten, param->information.id, AST_MAX_EXTENSION-1);
+ lcr_start_pbx(call, ast, param->information.sending_complete);
+ return;
+ }
/* copy digits */
p = param->information.id;
if (call->state == CHAN_LCR_STATE_IN_DIALING && *p)
{
+ CDEBUG(call, call->ast, "Asterisk is started, sending DTMF frame.\n");
while (*p)
{
/* send digit to asterisk */
}
}
/* use bridge to forware message not supported by asterisk */
- if (call->state == CHAN_LCR_STATE_CONNECT)
+ if (call->state == CHAN_LCR_STATE_CONNECT) {
+ CDEBUG(call, call->ast, "Call is connected, briding.\n");
bridge_message_if_bridged(call, message_type, param);
+ }
}
/*
*/
static void lcr_in_notify(struct chan_call *call, int message_type, union parameter *param)
{
+ CDEBUG(call, call->ast, "Incomming notify from LCR. (notify=%d)\n", param->notifyinfo.notify);
+
if (!call->ast) return;
/* use bridge to forware message not supported by asterisk */
*/
static void lcr_in_facility(struct chan_call *call, int message_type, union parameter *param)
{
+ CDEBUG(call, call->ast, "Incomming facility from LCR.\n");
+
if (!call->ast) return;
/* use bridge to forware message not supported by asterisk */
switch(param->bchannel.type)
{
case BCHANNEL_ASSIGN:
+ CDEBUG(NULL, NULL, "Received BCHANNEL_ASSIGN message. (handle=%08lx)\n", param->bchannel.handle);
if ((bchannel = find_bchannel_handle(param->bchannel.handle)))
{
- fprintf(stderr, "error: bchannel handle %x already assigned.\n", (int)param->bchannel.handle);
+ CERROR(NULL, NULL, "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", (int)param->bchannel.handle);
+ CERROR(NULL, NULL, "alloc bchannel handle %x failed.\n", (int)param->bchannel.handle);
return(-1);
}
{
bchannel->call = call;
call->bchannel = bchannel;
-#warning hier muesen alle stati gesetzt werden falls sie vor dem b-kanal verfügbar waren
- if (call->bridge_id)
+#ifdef TODO
+hier muesen alle bchannel-features gesetzt werden (pipeline...) falls sie vor dem b-kanal verfügbar waren
+#endif
+ if (call->bridge_id) {
+ CDEBUG(call, call->ast, "Join bchannel, because call is already bridged.\n");
bchannel_join(bchannel, call->bridge_id);
+ }
}
if (bchannel_create(bchannel))
bchannel_activate(bchannel, 1);
break;
case BCHANNEL_REMOVE:
+ CDEBUG(NULL, NULL, "Received BCHANNEL_REMOVE message. (handle=%08lx)\n", param->bchannel.handle);
if (!(bchannel = find_bchannel_handle(param->bchannel.handle)))
{
- #warning alle fprintf nach ast_log
- fprintf(stderr, "error: bchannel handle %x not assigned.\n", (int)param->bchannel.handle);
+ CERROR(NULL, NULL, "Bchannel handle %x not assigned.\n", (int)param->bchannel.handle);
return(-1);
}
/* unklink from call and destroy bchannel */
break;
default:
- fprintf(stderr, "received unknown bchannel message %d\n", param->bchannel.type);
+ CDEBUG(NULL, NULL, "Received unknown bchannel message %d.\n", param->bchannel.type);
}
return(0);
}
if (param->direction)
{
/* new ref from lcr */
+ CDEBUG(NULL, NULL, "Received new ref by LCR, of call from LCR. (ref=%ld)\n", ref);
if (!ref || find_call_ref(ref))
{
- fprintf(stderr, "illegal new ref %ld received\n", ref);
+ CERROR(NULL, NULL, "Illegal new ref %ld received.\n", ref);
return(-1);
}
/* allocate new call instance */
} else
{
/* new ref, as requested from this remote application */
+ CDEBUG(NULL, NULL, "Received new ref by LCR, as requested from chan_lcr. (ref=%ld)\n", ref);
call = find_call_ref(0);
if (!call)
{
/* send release, if ref does not exist */
+ CDEBUG(NULL, NULL, "No call found, that requests a ref.\n");
newparam.disconnectinfo.cause = CAUSE_NORMAL;
newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
send_message(MESSAGE_RELEASE, ref, &newparam);
/* check ref */
if (!ref)
{
- fprintf(stderr, "received message %d without ref\n", message_type);
+ CERROR(NULL, NULL, "Received message %d without ref.\n", message_type);
return(-1);
}
call = find_call_ref(ref);
if (!call)
{
/* ignore ref that is not used (anymore) */
+ CDEBUG(NULL, NULL, "Message %d from LCR ignored, because no call instance found.\n", message_type);
return(0);
}
lcr_in_facility(call, message_type, param);
break;
- case MESSAGE_PATTERN:
-#warning todo
+ case MESSAGE_PATTERN: // audio available from LCR
break;
- case MESSAGE_NOPATTERN:
-#warning todo
+ case MESSAGE_NOPATTERN: // audio not available from LCR
break;
- case MESSAGE_AUDIOPATH:
-#warning todo
+ case MESSAGE_AUDIOPATH: // if remote audio connected or hold
+ call->audiopath = param->audiopath;
break;
default:
-#warning unhandled
+ CDEBUG(call, call->ast, "Message %d from LCR unhandled.\n", message_type);
break;
}
return(0);
}
+/*
+ * release all calls (due to broken socket)
+ */
+static void release_all_calls(void)
+{
+ struct chan_call *call;
+
+again:
+ call = call_first;
+ while(call)
+ {
+ /* no ast, so we may directly free call */
+ if (!call->ast) {
+ CDEBUG(call, NULL, "Freeing call, because no Asterisk channel is linked.\n");
+ free_call(call);
+ goto again;
+ }
+ /* already in release process */
+ if (call->state == CHAN_LCR_STATE_RELEASE) {
+ call = call->next;
+ continue;
+ }
+ /* release or queue release */
+ call->ref = 0;
+ call->state = CHAN_LCR_STATE_RELEASE;
+ if (!call->pbx_started)
+ {
+ CDEBUG(call, call->ast, "Releasing call, because no Asterisk channel is not started.\n");
+ ast_hangup(call->ast); // call will be destroyed here
+ goto again;
+ }
+ CDEBUG(call, call->ast, "Queue call release, because Asterisk channel is running.\n");
+ ast_queue_hangup(call->ast);
+ call = call->next;
+ }
+}
+
/* asterisk handler
* warning! not thread safe
int sock;
- #warning SOCKET FEHLT!
/* read from socket */
len = read(sock, &msg, sizeof(msg));
if (len == 0)
{
- printf("Socket closed\n");
+ CERROR(NULL, NULL, "Socket closed.\n");
return(-1); // socket closed
}
if (len > 0)
{
if (len != sizeof(msg))
{
- fprintf(stderr, "Socket short read (%d)\n", len);
+ CERROR(NULL, NULL, "Socket short read. (len %d)\n", len);
return(-1); // socket error
}
if (msg.message != ADMIN_MESSAGE)
{
- fprintf(stderr, "Socket received illegal message %d\n", msg.message);
+ CERROR(NULL, NULL, "Socket received illegal message %d.\n", msg.message);
return(-1); // socket error
}
receive_message(msg.u.msg.type, msg.u.msg.ref, &msg.u.msg.param);
- printf("message received %d\n", msg.u.msg.type);
work = 1;
} else
{
if (errno != EWOULDBLOCK)
{
- fprintf(stderr, "Socket error %d\n", errno);
+ CERROR(NULL, NULL, "Socket failed (errno %d).\n", errno);
return(-1);
}
}
len = write(sock, &admin->msg, sizeof(msg));
if (len == 0)
{
- printf("Socket closed\n");
+ CERROR(NULL, NULL, "Socket closed.\n");
return(-1); // socket closed
}
if (len > 0)
{
if (len != sizeof(msg))
{
- fprintf(stderr, "Socket short write (%d)\n", len);
+ CERROR(NULL, NULL, "Socket short write. (len %d)\n", len);
return(-1); // socket error
}
/* free head */
{
if (errno != EWOULDBLOCK)
{
- fprintf(stderr, "Socket error %d\n", errno);
+ CERROR(NULL, NULL, "Socket failed (errno %d).\n", errno);
return(-1);
}
}
/* open socket */
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
{
- ast_log(LOG_ERROR, "Failed to create socket.\n");
+ CERROR(NULL, NULL, "Failed to create socket.\n");
return(sock);
}
if ((conn = connect(sock, (struct sockaddr *)&sock_address, SUN_LEN(&sock_address))) < 0)
{
close(sock);
- ast_log(LOG_ERROR, "Failed to connect to socket \"%s\". Is LCR running?\n", sock_address.sun_path);
+ CERROR(NULL, NULL, "Failed to connect to socket '%s'. Is LCR running?\n", sock_address.sun_path);
return(conn);
}
if ((ret = ioctl(sock, FIONBIO, (unsigned char *)(&on))) < 0)
{
close(sock);
- ast_log(LOG_ERROR, "Failed to set socket into non-blocking IO.\n");
+ CERROR(NULL, NULL, "Failed to set socket into non-blocking IO.\n");
return(ret);
}
static void *chan_thread(void *arg)
{
int work;
+ int ret;
+ union parameter param;
+ time_t retry = 0, now;
+
+ bchannel_pid = getpid();
+
+ memset(¶m, 0, sizeof(union parameter));
+ if (lcr_sock > 0)
+ time(&retry);
ast_mutex_lock(&chan_lock);
- while(!quit)
- {
+ while(!quit) {
work = 0;
- /* handle socket */
- int ret = handle_socket();
- if (ret < 0)
- break;
- if (ret)
- work = 1;
+ if (lcr_sock > 0) {
+ /* handle socket */
+ ret = handle_socket();
+ if (ret < 0) {
+ CERROR(NULL, NULL, "Handling of socket failed - closing for some seconds.\n");
+ close_socket(lcr_sock);
+ lcr_sock = -1;
+ release_all_calls();
+ time(&retry);
+ }
+ if (ret)
+ work = 1;
+ } else {
+ time(&now);
+ if (retry && now-retry > 5) {
+ CERROR(NULL, NULL, "Retry to open socket.\n");
+ retry = 0;
+ if (!(lcr_sock = open_socket())) {
+ time(&retry);
+ }
+ work = 1;
+ }
+
+ }
/* handle mISDN */
ret = bchannel_handle();
if (ret)
work = 1;
- if (!work)
- {
+ if (!work) {
ast_mutex_unlock(&chan_lock);
usleep(30000);
ast_mutex_lock(&chan_lock);
}
}
+
+ CERROR(NULL, NULL, "Thread exit.\n");
ast_mutex_unlock(&chan_lock);
/*
* new asterisk instance
*/
-static struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
+static
+struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
{
union parameter newparam;
struct ast_channel *ast;
ast_mutex_lock(&chan_lock);
+ CDEBUG(NULL, NULL, "Received request from Asterisk.\n");
+
+ /* if socket is closed */
+ if (lcr_sock < 0)
+ {
+ CERROR(NULL, NULL, "Rejecting call from Asterisk, because LCR not running.\n");
+ return NULL;
+ }
+
/* create call instance */
call = alloc_call();
if (!call)
ast = ast_channel_alloc(1, AST_STATE_RESERVED, NULL, NULL, "", NULL, "", 0, "%s/%d", lcr_type, ++glob_channel);
if (!ast)
{
+ CERROR(NULL, NULL, "Failed to create Asterisk channel.\n");
free_call(call);
/* failed to create instance */
return NULL;
call->ast = ast;
ast->tech = &lcr_tech;
/* configure channel */
+#ifdef TODO
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;
+#endif
+#ifdef TODO
+ ast->nativeformats = configfile->lawformat;
ast->readformat = ast->rawreadformat = configfile->lawformat;
ast->writeformat = ast->rawwriteformat = configfile->lawformat;
+#else
+ ast->nativeformats = AST_FORMAT_ALAW;
+ ast->readformat = ast->rawreadformat = AST_FORMAT_ALAW;
+ ast->writeformat = ast->rawwriteformat = AST_FORMAT_ALAW;
#endif
ast->hangupcause = 0;
/* send MESSAGE_NEWREF */
*/
static int lcr_call(struct ast_channel *ast, char *dest, int timeout)
{
- struct chan_call *call=ast->tech_pvt;
-
- if (!call) return -1;
+ struct chan_call *call;
ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received call from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
-#warning hier muss noch
-#if 0
- ast_copy_string(buf, dest, sizeof(buf)-1);
- p=buf;
- port_str=strsep(&p, "/");
- dad=strsep(&p, "/");
-#endif
+ CDEBUG(call, ast, "Received call from Asterisk.\n");
+
+ call->pbx_started = 1;
/* 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;
+ struct chan_call *call;
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);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received digit from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ CDEBUG(call, ast, "Received digit Asterisk.\n");
/* send information or queue them */
if (call->ref && call->state == CHAN_LCR_STATE_OUT_DIALING)
{
+ CDEBUG(call, ast, "Sending digit to LCR, because we are in dialing state.\n");
memset(&newparam, 0, sizeof(union parameter));
newparam.information.id[0] = digit;
newparam.information.id[1] = '\0';
if (!call->ref
&& (call->state == CHAN_LCR_STATE_OUT_PREPARE || call->state == CHAN_LCR_STATE_OUT_SETUP));
{
+ CDEBUG(call, ast, "Queue digits, because we are in setup/dialing state and have no ref yet.\n");
*buf = digit;
strncat(call->dialque, buf, strlen(call->dialque)-1);
}
static int lcr_answer(struct ast_channel *ast)
{
union parameter newparam;
- struct chan_call *call = ast->tech_pvt;
-
- if (!call) return -1;
+ struct chan_call *call;
ast_mutex_lock(&chan_lock);
-
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received answer from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ CDEBUG(call, ast, "Received answer from Asterisk.\n");
+
/* copy connectinfo, if bridged */
if (call->bridge_call)
memcpy(&call->connectinfo, &call->bridge_call->connectinfo, sizeof(struct connect_info));
static int lcr_hangup(struct ast_channel *ast)
{
union parameter newparam;
- struct chan_call *call = ast->tech_pvt;
+ struct chan_call *call;
+ pthread_t tid = pthread_self();
+
+ if (!pthread_equal(tid, chan_tid))
+ ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received hangup from Asterisk, but no call instance exists.\n");
+ if (!pthread_equal(tid, chan_tid))
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
- if (!call)
- return 0;
+ if (!pthread_equal(tid, chan_tid))
+ CDEBUG(call, ast, "Received hangup from Asterisk thread.\n");
+ else
+ CDEBUG(call, ast, "Received hangup from LCR thread.\n");
- ast_mutex_lock(&chan_lock);
/* disconnect asterisk, maybe not required */
ast->tech_pvt = NULL;
+ ast->fds[0] = -1;
if (call->ref)
{
/* release */
+ CDEBUG(call, ast, "Releasing ref and freeing call instance.\n");
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);
+ if (!pthread_equal(tid, chan_tid))
+ ast_mutex_unlock(&chan_lock);
return 0;
} else
{
if (call->state == CHAN_LCR_STATE_RELEASE)
{
/* we get the response to our release */
+ CDEBUG(call, ast, "Freeing call instance, because we have no ref AND we are requesting no ref.\n");
free_call(call);
} else
{
/* during prepare, we change to release state */
+ CDEBUG(call, ast, "We must wait until we received our ref, until we can free call instance.\n");
call->state = CHAN_LCR_STATE_RELEASE;
}
}
- ast_mutex_unlock(&chan_lock);
+ if (!pthread_equal(tid, chan_tid))
+ 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;
+ struct chan_call *call;
+ unsigned char buffer[1024], *s, *d = buffer;
+ int i, ii;
+
ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+ if (call->bchannel && ((ii = f->samples)))
+ {
+ if (ii > sizeof(buffer))
+ ii = sizeof(buffer);
+ s = f->data;
+ for (i = 0; i < ii; i++)
+ *d++ = flip_bits[*s++];
+ bchannel_transmit(call->bchannel, buffer, ii);
+ }
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;
+ struct chan_call *call;
+ int i, len;
+ unsigned char *p;
+
ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ ast_mutex_unlock(&chan_lock);
+ return NULL;
+ }
+ len = read(call->pipe[0], call->read_buff, sizeof(call->read_buff));
+ if (len <= 0)
+ return NULL;
+
+ p = call->read_buff;
+ for (i = 0; i < len; i++) {
+ *p = flip_bits[*p];
+ p++;
+ }
+
+ call->read_fr.frametype = AST_FRAME_VOICE;
+#ifdef TODO
+ format aus config
+#endif
+ call->read_fr.subclass = AST_FORMAT_ALAW;
+ call->read_fr.datalen = len;
+ call->read_fr.samples = len;
+ call->read_fr.delivery = ast_tv(0,0);
+ call->read_fr.data = call->read_buff;
ast_mutex_unlock(&chan_lock);
- return 0;
+
+ return &call->read_fr;
}
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;
+ struct chan_call *call;
ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received indicate from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
switch (cond) {
case AST_CONTROL_BUSY:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_BUSY from Asterisk.\n");
/* send message to lcr */
memset(&newparam, 0, sizeof(union parameter));
newparam.disconnectinfo.cause = 17;
ast_mutex_unlock(&chan_lock);
return 0;
case AST_CONTROL_CONGESTION:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_CONGESTION from Asterisk.\n");
/* return */
ast_mutex_unlock(&chan_lock);
return -1;
case AST_CONTROL_RINGING:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_RINGING from Asterisk.\n");
/* send message to lcr */
memset(&newparam, 0, sizeof(union parameter));
send_message(MESSAGE_ALERTING, call->ref, &newparam);
res = -1;
break;
case AST_CONTROL_HOLD:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_HOLD from Asterisk.\n");
/* 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:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_UNHOLD from Asterisk.\n");
/* send message to lcr */
memset(&newparam, 0, sizeof(union parameter));
newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
break;
default:
- ast_log(LOG_WARNING, "Don't know how to display condition %d on %s\n", cond, ast->name);
+ CERROR(call, ast, "Received indicate from Asterisk with unknown condition %d.\n", cond);
/* return */
ast_mutex_unlock(&chan_lock);
return -1;
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;
+ CDEBUG(NULL, NULL, "Received briding request from Asterisk.\n");
- 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);
+ bridge_id = new_bridge_id();
call1 = ast1->tech_pvt;
call2 = ast2->tech_pvt;
- if (call1)
+ if (call1 && call2)
{
call1->bridge_id = bridge_id;
if (call1->bchannel)
bchannel_join(call1->bchannel, bridge_id);
+ call1->bridge_call = call2;
}
if (call2)
{
call2->bridge_id = bridge_id;
if (call2->bchannel)
bchannel_join(call2->bchannel, bridge_id);
+ call2->bridge_call = call1;
}
ast_mutex_unlock(&chan_lock);
who = ast_waitfor_n(carr, 2, &to);
if (!who) {
- ast_log(LOG_NOTICE,"misdn_bridge: empty read, breaking out\n");
+ CDEBUG(NULL, NULL, "Empty read on bridge, breaking out.\n");
break;
}
f = ast_read(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
if (who == ast1) {
ast_write(ast2,f);
}
+ CDEBUG(NULL, NULL, "Releasing bride.\n");
+
/* split channels */
ast_mutex_lock(&chan_lock);
call1 = ast1->tech_pvt;
call1->bridge_id = 0;
if (call1->bchannel)
bchannel_join(call1->bchannel, 0);
+ if (call1->bridge_call)
+ call1->bridge_call->bridge_call = NULL;
+ call1->bridge_call = NULL;
}
if (call2)
{
call2->bridge_id = 0;
if (call2->bchannel)
bchannel_join(call2->bchannel, 0);
+ if (call2->bridge_call)
+ call2->bridge_call->bridge_call = NULL;
+ call2->bridge_call = NULL;
}
ast_mutex_unlock(&chan_lock);
return AST_BRIDGE_COMPLETE;
}
static struct ast_channel_tech lcr_tech = {
- .type=lcr_type,
+ .type="LCR",
.description="Channel driver for connecting to Linux-Call-Router",
+#ifdef TODO
+ law from config
+#else
.capabilities=AST_FORMAT_ALAW,
+#endif
.requester=lcr_request,
.send_digit_begin=lcr_digit,
.call=lcr_call,
*/
int load_module(void)
{
-// ast_mutex_init(&release_lock);
+ int i;
-// lcr_cfg_update_ptp();
+ for (i = 0; i < 256; i++)
+ flip_bits[i] = (i>>7) | ((i>>5)&2) | ((i>>3)&4) | ((i>>1)&8)
+ || (i<<7) | ((i&2)<<5) | ((i&4)<<3) | ((i&8)<<1);
ast_mutex_init(&chan_lock);
+ ast_mutex_init(&log_lock);
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");
+ CERROR(NULL, NULL, "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");
+ CERROR(NULL, NULL, "Unable to register channel class\n");
bchannel_deinitialize();
close_socket(lcr_sock);
return -1;
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;
+ quit = 0;
if ((pthread_create(&chan_tid, NULL, chan_thread, NULL)<0))
{
/* failed to create thread */
int unload_module(void)
{
/* First, take us out of the channel loop */
- ast_log(LOG_VERBOSE, "-- Unregistering mISDN Channel Driver --\n");
+ CDEBUG(NULL, NULL, "-- Unregistering mISDN Channel Driver --\n");
quit = 1;
pthread_join(chan_tid, NULL);
return 0;
}
-static int reload_module(void)
+int reload_module(void)
{
// reload_config();
return 0;
}
-
+#ifdef TODO
+mutex init fehlt noch
ast_mutex_t usecnt_lock;
int usecnt;
ast_mutex_unlock(&usecnt_lock);
return res;
}
+#endif
char *desc="Channel driver for lcr";
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