1574 lines
38 KiB
C
1574 lines
38 KiB
C
/*****************************************************************************\
|
||
** **
|
||
** Linux Call Router **
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** **
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||
**---------------------------------------------------------------------------**
|
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** Copyright: Andreas Eversberg **
|
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** **
|
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** Asterisk socket client **
|
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** **
|
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\*****************************************************************************/
|
||
|
||
/*
|
||
|
||
Registering to LCR:
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||
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||
To connect, open an LCR socket and send a MESSAGE_HELLO to socket with
|
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the application name. This name is unique an can be used for routing calls.
|
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Now the channel driver is linked to LCR and can receive and make calls.
|
||
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||
|
||
Call is initiated by LCR:
|
||
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If a call is received from LCR, a MESSAGE_NEWREF is received first.
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A new chan_call instance is created. The call reference (ref) is given by
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MESSAGE_NEWREF. The state is CHAN_LCR_STATE_IN_PREPARE.
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After receiving MESSAGE_SETUP from LCR, the ast_channel instance is created
|
||
using ast_channel_alloc(1). The setup information is given to asterisk.
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The new Asterisk instance pointer (ast) is stored to chan_call structure.
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The state changes to CHAN_LCR_STATE_IN_SETUP.
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Call is initiated by Asterisk:
|
||
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If a call is reveiced from Asterisk, a new chan_call instance is created.
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The new Asterisk instance pointer (ast) is stored to chan_call structure.
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A MESSASGE_NEWREF is sent to LCR requesting a new call reference (ref).
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The current call ref is set to 0, the state is CHAN_LCR_STATE_OUT_PREPARE.
|
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Further dialing information is queued.
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After the new callref is received by special MESSAGE_NEWREF reply, new ref
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||
is stored in the chan_call structure.
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The setup information is sent to LCR using MESSAGE_SETUP.
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The state changes to CHAN_LCR_STATE_OUT_SETUP.
|
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Call is in process:
|
||
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During call process, messages are received and sent.
|
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The state changes accordingly.
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Any message is allowed to be sent to LCR at any time except MESSAGE_RELEASE.
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If a MESSAGE_OVERLAP is received, further dialing is required.
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Queued dialing information, if any, is sent to LCR using MESSAGE_DIALING.
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In this case, the state changes to CHAN_LCR_STATE_OUT_DIALING.
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Call is released by LCR:
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A MESSAGE_RELEASE is received with the call reference (ref) to be released.
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The current ref is set to 0, to indicate released reference.
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The state changes to CHAN_LCR_STATE_RELEASE.
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ast_queue_hangup() is called, if asterisk instance (ast) exists, if not,
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the chan_call instance is destroyed.
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After lcr_hangup() is called-back by Asterisk, the chan_call instance
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is destroyed, because the current ref is set to 0 and the state equals
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CHAN_LCR_STATE_RELEASE.
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If the ref is 0 and the state is not CHAN_LCR_STATE_RELEASE, see the proceedure
|
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"Call is released by Asterisk".
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Call is released by Asterisk:
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lcr_hangup() is called-back by Asterisk. If the call reference (ref) is set,
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a MESSAGE_RELEASE is sent to LCR and the chan_call instance is destroyed.
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If the ref is 0 and the state is not CHAN_LCR_STATE_RELEASE, the new state is
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set to CHAN_LCR_STATE_RELEASE.
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Later, if the MESSAGE_NEWREF reply is received, a MESSAGE_RELEASE is sent to
|
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LCR and the chan_call instance is destroyed.
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If the ref is 0 and the state is CHAN_LCR_STATE_RELEASE, see the proceedure
|
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"Call is released by LCR".
|
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*/
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todo (before first compile)
|
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reconnect after socket closed, release all calls.
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debug of call handling
|
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ausloesen beim socket-verlust
|
||
|
||
|
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <sys/types.h>
|
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#include <time.h>
|
||
#include <unistd.h>
|
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include "extension.h"
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#include "message.h"
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#include "lcrsocket.h"
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#include "cause.h"
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#include "bchannel.h"
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#include "chan_lcr.h"
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#include <asterisk/module.h>
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#include <asterisk/channel.h>
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#include <asterisk/config.h>
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#include <asterisk/logger.h>
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#include <asterisk/pbx.h>
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#include <asterisk/options.h>
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#include <asterisk/io.h>
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#include <asterisk/frame.h>
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#include <asterisk/translate.h>
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#include <asterisk/cli.h>
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#include <asterisk/musiconhold.h>
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#include <asterisk/dsp.h>
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#include <asterisk/translate.h>
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#include <asterisk/file.h>
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#include <asterisk/callerid.h>
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#include <asterisk/indications.h>
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#include <asterisk/app.h>
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#include <asterisk/features.h>
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#include <asterisk/sched.h>
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CHAN_LCR_STATE // state description structure
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||
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int lcr_debug=1;
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int mISDN_created=1;
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char lcr_type[]="LCR";
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pthread_t chan_tid;
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pthread_mutex_t chan_lock;
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int quit;
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int lcr_sock = -1;
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struct admin_list {
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struct admin_list *next;
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struct admin_msg msg;
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} *admin_first = NULL;
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/*
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* channel and call instances
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*/
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struct chan_call *call_first;
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struct chan_call *find_call_ref(unsigned long ref)
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{
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struct chan_call *call = call_first;
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while(call)
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{
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if (call->ref == ref)
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break;
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call = call->next;
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}
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return(call);
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}
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struct chan_call *find_call_handle(unsigned long handle)
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{
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struct chan_call *call = call_first;
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while(call)
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{
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if (call->bchannel_handle == handle)
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break;
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call = call->next;
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}
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return(call);
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}
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struct chan_call *alloc_call(void)
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{
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struct chan_call **callp = &call_first;
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while(*callp)
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callp = &((*callp)->next);
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*callp = (struct chan_call *)malloc(sizeof(struct chan_call));
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if (*callp)
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memset(*callp, 0, sizeof(struct chan_call));
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return(*callp);
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}
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void free_call(struct chan_call *call)
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{
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struct chan_call **temp = &call_first;
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while(*temp)
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{
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if (*temp == call)
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{
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*temp = (*temp)->next;
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if (call->bch)
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{
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if (call->bch->call)
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call->bch->call = NULL;
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}
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free(call);
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return;
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}
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temp = &((*temp)->next);
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}
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}
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unsigned short new_brige_id(void)
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{
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struct chan_call *call;
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unsigned short id = 1;
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/* search for lowest bridge id that is not in use and not 0 */
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while(id)
|
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{
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call = call_first;
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while(call)
|
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{
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if (call->bridge_id == id)
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break;
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call = call->next;
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}
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if (!call)
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break;
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id++;
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}
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return(id);
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}
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/*
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* receive bchannel data
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*/
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void rx_data(struct bchannel *bchannel, unsigned char *data, int len)
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{
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}
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void rx_dtmf(struct bchannel *bchannel, char tone)
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{
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}
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/*
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* enque message to LCR
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*/
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int send_message(int message_type, unsigned long ref, union parameter *param)
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{
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struct admin_list *admin, **adminp;
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adminp = &admin_first;
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while(*adminp)
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adminp = &((*adminp)->next);
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admin = (struct admin_list *)malloc(sizeof(struct admin_list));
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*adminp = admin;
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admin->msg.type = message_type;
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admin->msg.ref = ref;
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memcpy(&admin->msg.param, param, sizeof(union parameter));
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return(0);
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}
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/*
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* in case of a bridge, the unsupported message can be forwarded directly
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* to the remote call.
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*/
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static void bridge_message_if_bridged(struct chan_call *call, int message_type, union parameter *param)
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{
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/* check bridge */
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if (!call) return;
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if (!call->channel) return;
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if (!call->channel->bridge_channel) return;
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if (!call->channel->bridge_channel->call) return;
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if (!call->channel->bridge_channel->call->ref) return;
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send_message(MESSAGE_RELEASE, call->channel->bridge_channel->call->ref, param);
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}
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/*
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* incoming setup from LCR
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*/
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static void lcr_in_setup(struct chan_call *call, int message_type, union parameter *param)
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{
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struct ast_channel *ast;
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union parameter newparam;
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/* create asterisk channel instrance */
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ast = ast_channel_alloc(1);
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if (!ast)
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{
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/* release */
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memset(&newparam, 0, sizeof(union parameter));
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newparam.disconnectinfo.cause = CAUSE_RESSOURCEUNAVAIL;
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newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
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send_message(MESSAGE_RELEASE, call->ref, &newparam);
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/* remove call */
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free_call(call);
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return;
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}
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/* set ast pointer */
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call->ast = ast;
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ast->tech_pvt = call;
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ast->tech = &lcr_tech;
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/* fill setup information */
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if (param->setup.exten[0])
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strdup(ast->exten, param->setup.exten);
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if (param->setup.callerinfo.id[0])
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strdup(ast->cid->cid_num, param->setup.callerinfo.id);
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if (param->setup.callerinfo.name[0])
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strdup(ast->cid->cid_name, param->setup.callerinfo.name);
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if (param->setup.redirinfo.id[0])
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strdup(ast->cid->cid_name, numberrize_callerinfo(param->setup.callerinfo.name, param->setup.callerinfo.ntype, configfile->prefix_nat, configfile->prefix_inter));
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switch (param->setup.callerinfo.present)
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{
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case INFO_PRESENT_ALLOWED:
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ast->cid->cid_pres = AST_PRESENT_ALLOWED;
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break;
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case INFO_PRESENT_RESTRICTED:
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ast->cid->cid_pres = AST_PRESENT_RESTRICTED;
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break;
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default:
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ast->cid->cid_pres = AST_PRESENT_UNAVAILABLE;
|
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}
|
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switch (param->setup.callerinfo.ntype)
|
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{
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case INFO_NTYPE_SUBSCRIBER:
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ast->cid->cid_ton = AST_wasnu;
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break;
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case INFO_NTYPE_NATIONAL:
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ast->cid->cid_ton = AST_wasnu;
|
||
break;
|
||
case INFO_NTYPE_INTERNATIONAL:
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ast->cid->cid_ton = AST_wasnu;
|
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break;
|
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default:
|
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ast->cid->cid_ton = AST_wasnu;
|
||
}
|
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ast->transfercapability = param->setup.bearerinfo.capability;
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||
|
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/* configure channel */
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ast->state = AST_STATE_RESERVED;
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snprintf(ast->name, sizeof(ast->name), "%s/%d", lcr_type, ++glob_channel);
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ast->name[sizeof(ast->name)-1] = '\0';
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ast->type = lcr_type;
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ast->nativeformat = configfile->lawformat;
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ast->readformat = ast->rawreadformat = configfile->lawformat;
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ast->writeformat = ast->rawwriteformat = configfile->lawformat;
|
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ast->hangupcause = 0;
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||
|
||
/* change state */
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||
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)
|
||
{
|
||
union parameter newparam;
|
||
struct bchannel *bchannel;
|
||
struct chan_call *call;
|
||
|
||
memset(&newparam, 0, sizeof(union parameter));
|
||
|
||
/* handle bchannel message*/
|
||
if (message_type == MESSAGE_BCHANNEL)
|
||
{
|
||
switch(param->bchannel.type)
|
||
{
|
||
case BCHANNEL_ASSIGN:
|
||
if ((bchannel = find_bchannel_handle(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", (int)param->bchannel.handle);
|
||
return(-1);
|
||
}
|
||
|
||
/* configure channel */
|
||
bchannel->b_tx_gain = param->bchannel.tx_gain;
|
||
bchannel->b_rx_gain = param->bchannel.rx_gain;
|
||
strncpy(bchannel->b_pipeline, param->bchannel.pipeline, sizeof(bchannel->b_pipeline)-1);
|
||
if (param->bchannel.crypt_len)
|
||
{
|
||
bchannel->b_crypt_len = param->bchannel.crypt_len;
|
||
bchannel->b_crypt_type = param->bchannel.crypt_type;
|
||
memcpy(bchannel->b_crypt_key, param->bchannel.crypt, param->bchannel.crypt_len);
|
||
}
|
||
bchannel->b_txdata = 0;
|
||
bchannel->b_dtmf = 1;
|
||
bchannel->b_tx_dejitter = 1;
|
||
|
||
/* in case, ref is not set, this bchannel instance must
|
||
* be created until it is removed again by LCR */
|
||
/* link to call */
|
||
if ((call = find_call_ref(ref)))
|
||
{
|
||
bchannel->ref = ref;
|
||
call->bchannel_handle = param->bchannel.handle;
|
||
#warning hier muesen alle stati gesetzt werden falls sie vor dem b-kanal verf<72>gbar waren
|
||
bchannel_join(bchannel, call->bridge_id);
|
||
}
|
||
if (bchannel_create(bchannel))
|
||
bchannel_activate(bchannel, 1);
|
||
|
||
/* acknowledge */
|
||
newparam.bchannel.type = BCHANNEL_ASSIGN_ACK;
|
||
newparam.bchannel.handle = param->bchannel.handle;
|
||
send_message(MESSAGE_BCHANNEL, 0, &newparam);
|
||
break;
|
||
|
||
case BCHANNEL_REMOVE:
|
||
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);
|
||
return(-1);
|
||
}
|
||
/* unlink from call */
|
||
if ((call = find_call_ref(bchannel->ref)))
|
||
{
|
||
call->bchannel_handle = 0;
|
||
}
|
||
/* destroy and remove bchannel */
|
||
free_bchannel(bchannel);
|
||
|
||
/* acknowledge */
|
||
newparam.bchannel.type = BCHANNEL_REMOVE_ACK;
|
||
newparam.bchannel.handle = param->bchannel.handle;
|
||
send_message(MESSAGE_BCHANNEL, 0, &newparam);
|
||
|
||
break;
|
||
|
||
default:
|
||
fprintf(stderr, "received unknown bchannel message %d\n", param->bchannel.type);
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
/* handle new ref */
|
||
if (message_type == MESSAGE_NEWREF)
|
||
{
|
||
if (param->direction)
|
||
{
|
||
/* new ref from lcr */
|
||
if (!ref || find_call_ref(ref))
|
||
{
|
||
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 */
|
||
call = find_call_ref(0);
|
||
if (!call)
|
||
{
|
||
/* send release, if ref does not exist */
|
||
newparam.disconnectinfo.cause = CAUSE_NORMAL;
|
||
newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
|
||
send_message(MESSAGE_RELEASE, ref, &newparam);
|
||
return(0);
|
||
}
|
||
/* store new ref */
|
||
call->ref = ref;
|
||
/* 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);
|
||
}
|
||
|
||
/* check ref */
|
||
if (!ref)
|
||
{
|
||
fprintf(stderr, "received message %d without ref\n", message_type);
|
||
return(-1);
|
||
}
|
||
call = find_call_ref(ref);
|
||
if (!call)
|
||
{
|
||
/* ignore ref that is not used (anymore) */
|
||
return(0);
|
||
}
|
||
|
||
/* handle messages */
|
||
switch(message_type)
|
||
{
|
||
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:
|
||
lcr_in_release(call, message_type, param);
|
||
break;
|
||
|
||
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);
|
||
}
|
||
|
||
|
||
/* asterisk handler
|
||
* warning! not thread safe
|
||
* returns -1 for socket error, 0 for no work, 1 for work
|
||
*/
|
||
int handle_socket(void)
|
||
{
|
||
int work = 0;
|
||
int len;
|
||
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)
|
||
{
|
||
printf("Socket closed\n");
|
||
return(-1); // socket closed
|
||
}
|
||
if (len > 0)
|
||
{
|
||
if (len != sizeof(msg))
|
||
{
|
||
fprintf(stderr, "Socket short read (%d)\n", len);
|
||
return(-1); // socket error
|
||
}
|
||
if (msg.message != ADMIN_MESSAGE)
|
||
{
|
||
fprintf(stderr, "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);
|
||
return(-1);
|
||
}
|
||
}
|
||
|
||
/* write to socket */
|
||
if (!admin_first)
|
||
return(work);
|
||
admin = admin_first;
|
||
len = write(sock, &admin->msg, sizeof(msg));
|
||
if (len == 0)
|
||
{
|
||
printf("Socket closed\n");
|
||
return(-1); // socket closed
|
||
}
|
||
if (len > 0)
|
||
{
|
||
if (len != sizeof(msg))
|
||
{
|
||
fprintf(stderr, "Socket short write (%d)\n", len);
|
||
return(-1); // socket error
|
||
}
|
||
/* free head */
|
||
admin_first = admin->next;
|
||
free(admin);
|
||
|
||
work = 1;
|
||
} else
|
||
{
|
||
if (errno != EWOULDBLOCK)
|
||
{
|
||
fprintf(stderr, "Socket error %d\n", errno);
|
||
return(-1);
|
||
}
|
||
}
|
||
|
||
return(work);
|
||
}
|
||
|
||
/*
|
||
* open and close socket
|
||
*/
|
||
int open_socket(void)
|
||
{
|
||
int ret;
|
||
int sock;
|
||
char *socket_name = SOCKET_NAME;
|
||
int conn;
|
||
struct sockaddr_un sock_address;
|
||
unsigned long on = 1;
|
||
union parameter param;
|
||
|
||
/* open socket */
|
||
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
|
||
{
|
||
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;
|
||
strcpy(sock_address.sun_path, socket_name);
|
||
|
||
/* connect socket */
|
||
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);
|
||
return(conn);
|
||
}
|
||
|
||
/* set non-blocking io */
|
||
if ((ret = ioctl(sock, FIONBIO, (unsigned char *)(&on))) < 0)
|
||
{
|
||
close(sock);
|
||
ast_log(LOG_ERROR, "Failed to set socket into non-blocking IO.\n");
|
||
return(ret);
|
||
}
|
||
|
||
/* enque hello message */
|
||
memset(¶m, 0, sizeof(param));
|
||
strcpy(param.hello.application, "asterisk");
|
||
send_message(MESSAGE_HELLO, 0, ¶m);
|
||
|
||
return(sock);
|
||
}
|
||
|
||
void close_socket(int sock)
|
||
{
|
||
/* close socket */
|
||
if (socket >= 0)
|
||
close(sock);
|
||
}
|
||
|
||
|
||
socket muss per timer fuer das <EFBFBD>ffnen checken
|
||
static void *chan_thread(void *arg)
|
||
{
|
||
int work;
|
||
|
||
pthread_mutex_lock(&chan_lock);
|
||
|
||
while(!quit)
|
||
{
|
||
work = 0;
|
||
|
||
/* handle socket */
|
||
int ret = handle_socket();
|
||
if (ret < 0)
|
||
break;
|
||
if (ret)
|
||
work = 1;
|
||
|
||
/* handle mISDN */
|
||
ret = bchannel_handle();
|
||
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;
|
||
|
||
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 <20>eberall 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.
|
||
|
||
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));
|
||
{
|
||
*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,
|
||
);
|
||
|