Call is initiated by LCR:
If a call is received from LCR, a MESSAGE_NEWREF is received first.
+The ref_was_assigned ist set to 1.
A new chan_call instance is created. The call reference (ref) is given by
-MESSAGE_NEWREF. The state is CHAN_LCR_STATE_IN_PREPARE.
+the received MESSAGE_NEWREF. The state is CHAN_LCR_STATE_IN_PREPARE.
After receiving MESSAGE_SETUP from LCR, the ast_channel instance is created
using ast_channel_alloc(1). The setup information is given to asterisk.
The new Asterisk instance pointer (ast) is stored to chan_call structure.
Call is initiated by Asterisk:
-If a call is reveiced from Asterisk, a new chan_call instance is created.
+If a call is requested from Asterisk, a new chan_call instance is created.
The new Asterisk instance pointer (ast) is stored to chan_call structure.
-A MESSASGE_NEWREF is sent to LCR requesting a new call reference (ref).
The current call ref is set to 0, the state is CHAN_LCR_STATE_OUT_PREPARE.
+If the call is received (lcr_call) A MESSAGE_NEWREF is sent to LCR requesting
+a new call reference (ref).
+The ref_was_assigned ist set to 1.
Further dialing information is queued.
After the new callref is received by special MESSAGE_NEWREF reply, new ref
is stored in the chan_call structure.
A MESSAGE_RELEASE is received with the call reference (ref) to be released.
The current ref is set to 0, to indicate released reference.
+The ref_was_assigned==1 shows that there is no other ref to be assigned.
The state changes to CHAN_LCR_STATE_RELEASE.
ast_queue_hangup() is called, if asterisk instance (ast) exists, if not,
the chan_call instance is destroyed.
a MESSAGE_RELEASE is sent to LCR and the chan_call instance is destroyed.
If the ref is 0 and the state is not CHAN_LCR_STATE_RELEASE, the new state is
set to CHAN_LCR_STATE_RELEASE.
+The ref_was_assigned==0 shows that a ref is still requested.
Later, if the MESSAGE_NEWREF reply is received, a MESSAGE_RELEASE is sent to
LCR and the chan_call instance is destroyed.
If the ref is 0 and the state is CHAN_LCR_STATE_RELEASE, see the proceedure
"Call is released by LCR".
+
+Locking issues:
+
+The deadlocking problem:
+
+- chan_lcr locks chan_lock and waits inside ast_queue_xxxx() for ast_channel
+to be unlocked.
+- ast_channel thread locks ast_channel and calls a tech function and waits
+there for chan_lock to be unlocked.
+
+The solution:
+
+Never call ast_queue_xxxx() if ast_channel is not locked and don't wait until
+ast_channel can be locked. All messages to asterisk are queued inside call
+instance and will be handled using a try-lock to get ast_channel lock.
+If it succeeds to lock ast_channel, the ast_queue_xxxx can safely called even
+if the lock is incremented and decremented there.
+
+Exception: Calling ast_queue_frame inside ast->tech->read is safe, because
+it is called from ast_channel process which has already locked ast_channel.
+
*/
+
+/* Choose if you want to have chan_lcr for Asterisk 1.4.x or CallWeaver 1.2.x */
+#define LCR_FOR_ASTERISK
+/* #define LCR_FOR_CALLWEAVER */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <time.h>
+//#include <signal.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <semaphore.h>
+#define HAVE_ATTRIBUTE_always_inline 1
+#define HAVE_ARPA_INET_H 1
+#define HAVE_TIMERSUB 1
+#define HAVE_STRTOQ 1
+#define HAVE_INET_ATON 1
+
+#include <asterisk/compiler.h>
+#ifdef LCR_FOR_ASTERISK
+#include <asterisk/buildopts.h>
+#endif
#include <asterisk/module.h>
#include <asterisk/channel.h>
#include <asterisk/config.h>
#include <asterisk/dsp.h>
#include <asterisk/translate.h>
#include <asterisk/file.h>
+#ifdef LCR_FOR_ASTERISK
#include <asterisk/callerid.h>
+#endif
+#ifdef LCR_FOR_CALLWEAVER
+#include <asterisk/phone_no_utils.h>
+#endif
+
#include <asterisk/indications.h>
#include <asterisk/app.h>
#include <asterisk/features.h>
#include "extension.h"
#include "message.h"
+#include "callerid.h"
#include "lcrsocket.h"
#include "cause.h"
+#include "select.h"
#include "bchannel.h"
+#include "options.h"
#include "chan_lcr.h"
-#include "callerid.h"
CHAN_LCR_STATE // state description structure
+MESSAGES // message text
-u_char flip_bits[256];
+#ifdef LCR_FOR_CALLWEAVER
+AST_MUTEX_DEFINE_STATIC(rand_lock);
+#endif
+
+unsigned char flip_bits[256];
+
+#ifdef LCR_FOR_CALLWEAVER
+static struct ast_frame nullframe = { AST_FRAME_NULL, };
+#endif
int lcr_debug=1;
int mISDN_created=1;
char lcr_type[]="lcr";
+#ifdef LCR_FOR_CALLWEAVER
+static ast_mutex_t usecnt_lock;
+static int usecnt=0;
+static char *desc = "Channel driver for mISDN/LCR Support (Bri/Pri)";
+#endif
+
pthread_t chan_tid;
ast_mutex_t chan_lock; /* global lock */
ast_mutex_t log_lock; /* logging log */
+/* global_change:
+ * used to indicate change in file descriptors, so select function's result may
+ * be obsolete.
+ */
+int global_change = 0;
+int wake_global = 0;
+int wake_pipe[2];
+struct lcr_fd wake_fd;
+
int quit;
int glob_channel = 0;
int lcr_sock = -1;
+struct lcr_fd socket_fd;
+struct lcr_timer socket_retry;
struct admin_list {
struct admin_list *next;
- struct admin_msg msg;
+ struct admin_message msg;
} *admin_first = NULL;
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, ...)
+void chan_lcr_log(int type, const char *file, int line, const char *function, struct chan_call *call, struct ast_channel *ast, const char *fmt, ...)
{
char buffer[1024];
char call_text[128] = "NULL";
va_end(args);
if (call)
- sprintf(call_text, "%ld", call->ref);
+ sprintf(call_text, "%d", 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_log(type, file, line, function, "[call=%s ast=%s] %s", call_text, ast_text, buffer);
+ printf("[call=%s ast=%s] %s", call_text, ast_text, buffer);
ast_mutex_unlock(&log_lock);
}
*/
struct chan_call *call_first;
-struct chan_call *find_call_ref(unsigned long ref)
-{
- struct chan_call *call = call_first;
-
- while(call)
- {
- if (call->ref == ref)
- break;
- call = call->next;
- }
- return(call);
-}
-
-#if 0
-struct chan_call *find_call_ast(struct ast_channel *ast)
-{
- struct chan_call *call = call_first;
-
- while(call)
- {
- if (call->ast == ast)
- break;
- call = call->next;
- }
- return(call);
-}
+/*
+ * find call by ref
+ * special case: 0: find new ref, that has not been assigned a ref yet
+ */
-struct chan_call *find_call_handle(unsigned long handle)
+struct chan_call *find_call_ref(unsigned int ref)
{
struct chan_call *call = call_first;
-
- while(call)
- {
- if (call->bchannel_handle == handle)
+ int assigned = (ref > 0);
+
+ while(call) {
+ if (call->ref == ref && call->ref_was_assigned == assigned)
break;
call = call->next;
}
- return(call);
+ return call;
}
-#endif
void free_call(struct chan_call *call)
{
struct chan_call **temp = &call_first;
- while(*temp)
- {
- if (*temp == call)
- {
+ while(*temp) {
+ if (*temp == call) {
*temp = (*temp)->next;
- if (call->pipe[0])
+ if (call->pipe[0] > -1)
close(call->pipe[0]);
- if (call->pipe[1])
+ if (call->pipe[1] > -1)
close(call->pipe[1]);
- if (call->bchannel)
- {
+ if (call->bchannel) {
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) {
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;
}
+ if (call->trans)
+ ast_translator_free_path(call->trans);
+ if (call->dsp)
+ ast_dsp_free(call->dsp);
CDEBUG(call, NULL, "Call instance freed.\n");
free(call);
+ global_change = 1;
return;
}
temp = &((*temp)->next);
while(*callp)
callp = &((*callp)->next);
- *callp = (struct chan_call *)malloc(sizeof(struct chan_call));
+ *callp = (struct chan_call *)calloc(1, 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);
+ return NULL;
}
+ fcntl((*callp)->pipe[0], F_SETFL, O_NONBLOCK);
CDEBUG(*callp, NULL, "Call instance allocated.\n");
- return(*callp);
+ return *callp;
}
-
unsigned short new_bridge_id(void)
{
struct chan_call *call;
unsigned short id = 1;
/* search for lowest bridge id that is not in use and not 0 */
- while(id)
- {
+ while(id) {
call = call_first;
- while(call)
- {
+ while(call) {
if (call->bridge_id == id)
break;
call = call->next;
id++;
}
CDEBUG(NULL, NULL, "New bridge ID %d.\n", id);
- return(id);
+ return id;
}
-
/*
* enque message to LCR
*/
-int send_message(int message_type, unsigned long ref, union parameter *param)
+int send_message(int message_type, unsigned int ref, union parameter *param)
{
struct admin_list *admin, **adminp;
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);
+ CDEBUG(NULL, NULL, "Sending %s to socket.\n", messages_txt[message_type]);
adminp = &admin_first;
while(*adminp)
adminp = &((*adminp)->next);
- admin = (struct admin_list *)malloc(sizeof(struct admin_list));
+ admin = (struct admin_list *)calloc(1, sizeof(struct admin_list));
+ if (!admin) {
+ CERROR(NULL, NULL, "No memory for message to LCR.\n");
+ return -1;
+ }
*adminp = admin;
- admin->msg.type = message_type;
- admin->msg.ref = ref;
- memcpy(&admin->msg.param, param, sizeof(union parameter));
+ admin->msg.message = ADMIN_MESSAGE;
+ admin->msg.u.msg.type = message_type;
+ admin->msg.u.msg.ref = ref;
+ memcpy(&admin->msg.u.msg.param, param, sizeof(union parameter));
+ socket_fd.when |= LCR_FD_WRITE;
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+
+ return 0;
+}
+
+/*
+ * apply options (in locked state)
+ */
+void apply_opt(struct chan_call *call, char *data)
+{
+ union parameter newparam;
+ char string[1024], *p = string, *opt, *key;
+ int gain, i;
+
+ if (!data[0])
+ return; // no opts
+
+ strncpy(string, data, sizeof(string)-1);
+ string[sizeof(string)-1] = '\0';
- return(0);
+ /* parse options */
+ while((opt = strsep(&p, ":"))) {
+ switch(opt[0]) {
+ case 'd':
+ if (opt[1] == '\0') {
+ CERROR(call, call->ast, "Option 'd' (display) expects parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'd' (display) with text '%s'.\n", opt+1);
+ if (call->state == CHAN_LCR_STATE_OUT_PREPARE)
+ strncpy(call->display, opt+1, sizeof(call->display)-1);
+ else {
+ memset(&newparam, 0, sizeof(union parameter));
+ strncpy(newparam.notifyinfo.display, opt+1, sizeof(newparam.notifyinfo.display)-1);
+ send_message(MESSAGE_NOTIFY, call->ref, &newparam);
+ }
+ break;
+ case 'n':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 'n' (no DTMF) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'n' (no DTMF).\n");
+ if (call->dsp_dtmf) {
+ call->dsp_dtmf = 0;
+ if (call->bchannel)
+ bchannel_dtmf(call->bchannel, 0);
+ }
+ break;
+ case 'c':
+ if (opt[1] == '\0') {
+ CERROR(call, call->ast, "Option 'c' (encrypt) expects key parameter.\n", opt);
+ break;
+ }
+ key = opt+1;
+ /* check for 0xXXXX... type of key */
+ if (!!strncmp((char *)key, "0x", 2)) {
+ CERROR(call, call->ast, "Option 'c' (encrypt) expects key parameter starting with '0x'.\n", opt);
+ break;
+ }
+ key+=2;
+ if (strlen(key) > 56*2 || (strlen(key) % 1)) {
+ CERROR(call, call->ast, "Option 'c' (encrypt) expects key parameter with max 56 bytes ('0x' + 112 characters)\n", opt);
+ break;
+ }
+ i = 0;
+ while(*key) {
+ if (*key>='0' && *key<='9')
+ call->bf_key[i] = (*key-'0') << 8;
+ else if (*key>='a' && *key<='f')
+ call->bf_key[i] = (*key-'a'+10) << 8;
+ else if (*key>='A' && *key<='F')
+ call->bf_key[i] = (*key-'A'+10) << 8;
+ else
+ break;
+ key++;
+ if (*key>='0' && *key<='9')
+ call->bf_key[i] += (*key - '0');
+ else if (*key>='a' && *key<='f')
+ call->bf_key[i] += (*key - 'a' + 10);
+ else if (*key>='A' && *key<='F')
+ call->bf_key[i] += (*key - 'A' + 10);
+ else
+ break;
+ key++;
+ i++;
+ }
+ if (*key) {
+ CERROR(call, call->ast, "Option 'c' (encrypt) expects key parameter with hex values 0-9,a-f.\n");
+ break;
+ }
+ call->bf_len = i;
+ CDEBUG(call, call->ast, "Option 'c' (encrypt) blowfish key '%s' (len=%d).\n", opt+1, i);
+ if (call->bchannel)
+ bchannel_blowfish(call->bchannel, call->bf_key, call->bf_len);
+ break;
+ case 'h':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 'h' (HDLC) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'h' (HDLC).\n");
+ if (!call->hdlc)
+ call->hdlc = 1;
+ break;
+ case 't':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 't' (no_dsp) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 't' (no dsp).\n");
+ if (!call->nodsp)
+ call->nodsp = 1;
+ break;
+ case 'q':
+ if (opt[1] == '\0') {
+ CERROR(call, call->ast, "Option 'q' (queue) expects parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'q' (queue).\n");
+ call->nodsp_queue = atoi(opt+1);
+ break;
+ case 'e':
+ if (opt[1] == '\0') {
+ CERROR(call, call->ast, "Option 'e' (echo cancel) expects parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'e' (echo cancel) with config '%s'.\n", opt+1);
+ strncpy(call->pipeline, opt+1, sizeof(call->pipeline)-1);
+ if (call->bchannel)
+ bchannel_pipeline(call->bchannel, call->pipeline);
+ break;
+ case 'f':
+ if (opt[1] == '\0') {
+ CERROR(call, call->ast, "Option 'f' (faxdetect) expects parameter.\n", opt);
+ break;
+ }
+ call->faxdetect=atoi(opt+1);
+ if (!call->dsp)
+ call->dsp=ast_dsp_new();
+ if (call->dsp) {
+ #ifdef LCR_FOR_CALLWEAVER
+ ast_dsp_set_features(call->dsp, DSP_FEATURE_DTMF_DETECT| DSP_FEATURE_FAX_CNG_DETECT);
+ #endif
+ #ifdef LCR_FOR_ASTERISK
+ #ifdef DSP_FEATURE_DTMF_DETECT
+ ast_dsp_set_features(call->dsp, DSP_FEATURE_DTMF_DETECT| DSP_FEATURE_FAX_DETECT);
+ #else
+ ast_dsp_set_features(call->dsp, DSP_FEATURE_DIGIT_DETECT| DSP_FEATURE_FAX_DETECT);
+ #endif
+
+ #endif
+ if (!call->trans)
+ #ifdef LCR_FOR_CALLWEAVER
+ call->trans=ast_translator_build_path(AST_FORMAT_SLINEAR, 8000, (options.law=='a')?AST_FORMAT_ALAW:AST_FORMAT_ULAW, 8000);
+ #endif
+ #ifdef LCR_FOR_ASTERISK
+ call->trans=ast_translator_build_path(AST_FORMAT_SLINEAR, (options.law=='a')?AST_FORMAT_ALAW:AST_FORMAT_ULAW);
+ #endif
+ }
+ CDEBUG(call, call->ast, "Option 'f' (faxdetect) with config '%s'.\n", call->faxdetect);
+ break;
+ case 'r':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 'r' (re-buffer 160 bytes) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'r' (re-buffer 160 bytes)");
+ call->rebuffer = 1;
+ call->framepos = 0;
+ break;
+ case 's':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 's' (inband DTMF) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 's' (inband DTMF).\n");
+ call->inband_dtmf = 1;
+ break;
+ case 'v':
+ if (opt[1] != 'r' && opt[1] != 't') {
+ CERROR(call, call->ast, "Option 'v' (volume) expects parameter.\n", opt);
+ break;
+ }
+ gain = atoi(opt+2);
+ if (gain < -8 || gain >8) {
+ CERROR(call, call->ast, "Option 'v' (volume) expects parameter in range of -8 through 8.\n");
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'v' (volume) with gain 2^%d.\n", gain);
+ if (opt[1] == 'r') {
+ call->rx_gain = gain;
+ if (call->bchannel)
+ bchannel_gain(call->bchannel, call->rx_gain, 0);
+ } else {
+ call->tx_gain = gain;
+ if (call->bchannel)
+ bchannel_gain(call->bchannel, call->tx_gain, 1);
+ }
+ break;
+ case 'k':
+ if (opt[1] != '\0') {
+ CERROR(call, call->ast, "Option 'k' (keypad) expects no parameter.\n", opt);
+ break;
+ }
+ CDEBUG(call, call->ast, "Option 'k' (keypad).\n");
+ if (!call->keypad)
+ call->keypad = 1;
+ break;
+ default:
+ CERROR(call, call->ast, "Option '%s' unknown.\n", opt);
+ }
+ }
+
+ /* re-open, if bchannel is created */
+ if (call->bchannel && call->bchannel->b_sock > -1) {
+ bchannel_destroy(call->bchannel);
+ if (bchannel_create(call->bchannel, ((call->nodsp || call->faxdetect > 0)?1:0) + ((call->hdlc)?2:0), call->nodsp_queue))
+ bchannel_activate(call->bchannel, 1);
+ }
}
/*
{
union parameter newparam;
struct ast_channel *ast = call->ast;
+// const char *tmp;
if (!call->ast || !call->ref)
return;
- CDEBUG(call, call->ast, "Sending setup to LCR.\n");
+ CDEBUG(call, call->ast, "Sending setup to LCR. (interface=%s dialstring=%s, cid=%s)\n", call->interface, call->dialstring, call->cid_num);
/* send setup message to LCR */
memset(&newparam, 0, sizeof(union parameter));
+ newparam.setup.dialinginfo.itype = INFO_ITYPE_ISDN;
+ newparam.setup.dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
+ if (call->keypad)
+ strncpy(newparam.setup.dialinginfo.keypad, call->dialstring, sizeof(newparam.setup.dialinginfo.keypad)-1);
+ else
+ strncpy(newparam.setup.dialinginfo.id, call->dialstring, sizeof(newparam.setup.dialinginfo.id)-1);
+ strncpy(newparam.setup.dialinginfo.interfaces, call->interface, sizeof(newparam.setup.dialinginfo.interfaces)-1);
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.callerinfo.ntype = INFO_NTYPE_UNKNOWN;
+ strncpy(newparam.setup.callerinfo.display, call->display, sizeof(newparam.setup.callerinfo.display)-1);
+ call->display[0] = '\0';
+ if (call->cid_num[0])
+ strncpy(newparam.setup.callerinfo.id, call->cid_num, sizeof(newparam.setup.callerinfo.id)-1);
+ if (call->cid_name[0])
+ strncpy(newparam.setup.callerinfo.name, call->cid_name, sizeof(newparam.setup.callerinfo.name)-1);
+ if (call->cid_rdnis[0]) {
+ strncpy(newparam.setup.redirinfo.id, call->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;
+ switch(ast->cid.cid_pres & AST_PRES_RESTRICTION) {
case AST_PRES_RESTRICTED:
newparam.setup.callerinfo.present = INFO_PRESENT_RESTRICTED;
break;
case AST_PRES_UNAVAILABLE:
newparam.setup.callerinfo.present = INFO_PRESENT_NOTAVAIL;
break;
+ case AST_PRES_ALLOWED:
default:
- newparam.setup.callerinfo.present = INFO_PRESENT_NULL;
+ newparam.setup.callerinfo.present = INFO_PRESENT_ALLOWED;
}
- switch(ast->cid.cid_ton)
- {
+ switch(ast->cid.cid_ton) {
case 4:
newparam.setup.callerinfo.ntype = INFO_NTYPE_SUBSCRIBER;
break;
default:
newparam.setup.callerinfo.ntype = INFO_NTYPE_UNKNOWN;
}
+#warning DISABLED DUE TO DOUBLE LOCKING PROBLEM
+// tmp = pbx_builtin_getvar_helper(ast, "LCR_TRANSFERCAPABILITY");
+// if (tmp && *tmp)
+// ast->transfercapability = atoi(tmp);
newparam.setup.capainfo.bearer_capa = ast->transfercapability;
-#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;
+ if (call->hdlc)
+ newparam.setup.capainfo.source_mode = B_MODE_HDLC;
+ else {
+ newparam.setup.capainfo.source_mode = B_MODE_TRANSPARENT;
+ newparam.setup.capainfo.bearer_info1 = (options.law=='a')?3:2;
+ }
newparam.setup.capainfo.hlc = INFO_HLC_NONE;
newparam.setup.capainfo.exthlc = INFO_HLC_NONE;
send_message(MESSAGE_SETUP, call->ref, &newparam);
{
union parameter newparam;
- if (!call->ast || !call->ref || !call->dialque)
+ if (!call->ast || !call->ref || !call->dialque[0])
return;
- CDEBUG(call, call->ast, "Sending dial queue to LCR.\n");
+ CDEBUG(call, call->ast, "Sending dial queue to LCR. (dialing=%s)\n", call->dialque);
/* send setup message to LCR */
memset(&newparam, 0, sizeof(union parameter));
- strncpy(newparam.information.id, call->dialque, sizeof(newparam.information.id)-1);
+ if (call->keypad)
+ strncpy(newparam.information.keypad, call->dialque, sizeof(newparam.information.keypad)-1);
+ else
+ strncpy(newparam.information.id, call->dialque, sizeof(newparam.information.id)-1);
call->dialque[0] = '\0';
send_message(MESSAGE_INFORMATION, call->ref, &newparam);
}
/* check bridge */
if (!call) return;
if (!call->bridge_call) return;
- CDEBUG(call, NULL, "Sending message due briding.\n");
+ CDEBUG(call, NULL, "Sending message due bridging.\n");
send_message(message_type, call->bridge_call->ref, param);
}
/*
+ * send release message to LCR and import bchannel if exported
+ */
+static void send_release_and_import(struct chan_call *call, int cause, int location)
+{
+ union parameter newparam;
+
+ /* importing channel */
+ if (call->bchannel) {
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_RELEASE;
+ newparam.bchannel.handle = call->bchannel->handle;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ /* sending release */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = cause;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_RELEASE, call->ref, &newparam);
+}
+
+/*
* check if extension matches and start asterisk
* if it can match, proceed
* if not, release
{
int cause, ret;
union parameter newparam;
+ char *exten = ast->exten;
+ if (!*exten)
+ exten = "s";
- if (complete)
- {
+ CDEBUG(call, ast, "Try to start pbx. (exten=%s context=%s complete=%s)\n", exten, ast->context, complete?"yes":"no");
+
+ 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);
+ if (!ast_canmatch_extension(ast, ast->context, exten, 1, call->oad)) {
+ CDEBUG(call, ast, "Got 'sending complete', but extension '%s' will not match at context '%s' - releasing.\n", 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);
+ if (!ast_exists_extension(ast, ast->context, 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", exten, ast->context);
cause = 28;
goto release;
}
goto start;
}
- if (ast_canmatch_extension(ast, ast->context, ast->exten, 1, call->oad))
- {
+ if (ast_canmatch_extension(ast, ast->context, exten, 1, call->oad)) {
/* send setup acknowledge to lcr */
- memset(&newparam, 0, sizeof(union parameter));
- send_message(MESSAGE_OVERLAP, call->ref, &newparam);
+ if (call->state != CHAN_LCR_STATE_IN_DIALING) {
+ 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)) {
+ if (ast_exists_extension(ast, ast->context, exten, 1, call->oad)) {
CDEBUG(call, ast, "Extensions matches.\n");
goto start;
}
return;
}
+ if (!*ast->exten) {
+ /* if can match */
+ CDEBUG(call, ast, "There is no 's' extension (and we tried to match it implicitly). 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);
+ send_release_and_import(call, cause, LOCATION_PRIVATE_LOCAL);
call->ref = 0;
/* release asterisk */
ast->hangupcause = call->cause;
start:
/* send setup to asterisk */
CDEBUG(call, ast, "Starting call to Asterisk due to matching extension.\n");
+
+ #ifdef LCR_FOR_CALLWEAVER
+ ast->type = "LCR";
+ snprintf(ast->name, sizeof(ast->name), "LCR/%s-%04x",ast->cid.cid_num, ast_random() & 0xffff);
+ #endif
+
ret = ast_pbx_start(ast);
- if (ret < 0)
- {
+ if (ret < 0) {
cause = (ret==-2)?34:27;
goto release;
}
call->pbx_started = 1;
- return;
+ ast_setstate(ast, AST_STATE_RING);
}
/*
static void lcr_in_setup(struct chan_call *call, int message_type, union parameter *param)
{
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);
+ CDEBUG(call, NULL, "Incomming setup from LCR. (callerid %s, dialing %s)\n", param->setup.callerinfo.id, param->setup.dialinginfo.id);
/* create asterisk channel instrance */
+
+ #ifdef LCR_FOR_CALLWEAVER
+ ast = ast_channel_alloc(1);
+ #endif
+
+ #ifdef LCR_FOR_ASTERISK
ast = ast_channel_alloc(1, AST_STATE_RESERVED, NULL, NULL, "", NULL, "", 0, "%s/%d", lcr_type, ++glob_channel);
- if (!ast)
- {
+ #endif
+
+ 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;
- send_message(MESSAGE_RELEASE, call->ref, &newparam);
+ send_release_and_import(call, CAUSE_RESSOURCEUNAVAIL, LOCATION_PRIVATE_LOCAL);
/* remove call */
free_call(call);
return;
}
- /* set ast pointer */
+ /* link together */
call->ast = ast;
ast->tech_pvt = call;
ast->tech = &lcr_tech;
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);
+ else
+ strncpy(ast->context, param->setup.callerinfo.interface, AST_MAX_CONTEXT-1);
+ memset(&ast->cid, 0, sizeof(ast->cid));
if (param->setup.callerinfo.id[0])
ast->cid.cid_num = strdup(param->setup.callerinfo.id);
+ if (param->setup.callerinfo.id2[0])
+ ast->cid.cid_ani = strdup(param->setup.callerinfo.id2);
if (param->setup.callerinfo.name[0])
ast->cid.cid_name = strdup(param->setup.callerinfo.name);
-#ifdef TODO
if (param->setup.redirinfo.id[0])
- 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_rdnis = strdup(numberrize_callerinfo(param->setup.redirinfo.id, param->setup.redirinfo.ntype, options.national, options.international));
+ switch (param->setup.callerinfo.present) {
case INFO_PRESENT_ALLOWED:
ast->cid.cid_pres = AST_PRES_ALLOWED;
break;
default:
ast->cid.cid_pres = AST_PRES_UNAVAILABLE;
}
- switch (param->setup.callerinfo.ntype)
- {
+ switch (param->setup.callerinfo.ntype) {
case INFO_NTYPE_SUBSCRIBER:
ast->cid.cid_ton = 4;
break;
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
+ /* enable hdlc if transcap is data */
+ if (param->setup.capainfo.source_mode == B_MODE_HDLC)
+ call->hdlc = 1;
+ strncpy(call->oad, numberrize_callerinfo(param->setup.callerinfo.id, param->setup.callerinfo.ntype, options.national, options.international), sizeof(call->oad)-1);
/* configure channel */
-#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->nativeformats = (options.law=='a')?AST_FORMAT_ALAW:AST_FORMAT_ULAW;
+ ast->readformat = ast->rawreadformat = ast->nativeformats;
+ ast->writeformat = ast->rawwriteformat = ast->nativeformats;
+ ast->priority = 1;
ast->hangupcause = 0;
/* change state */
call->state = CHAN_LCR_STATE_IN_SETUP;
- lcr_start_pbx(call, ast, param->setup.dialinginfo.sending_complete);
+ if (!call->pbx_started)
+ lcr_start_pbx(call, ast, param->setup.dialinginfo.sending_complete);
}
/*
CDEBUG(call, call->ast, "Incomming setup acknowledge from LCR.\n");
/* send pending digits in dialque */
- if (call->dialque)
+ if (call->dialque[0])
send_dialque_to_lcr(call);
/* change to overlap state */
call->state = CHAN_LCR_STATE_OUT_DIALING;
/* change state */
call->state = CHAN_LCR_STATE_OUT_PROCEEDING;
- /* send event to asterisk */
- if (call->ast && call->pbx_started)
- ast_queue_control(call->ast, AST_CONTROL_PROCEEDING);
+ /* queue event for asterisk */
+ if (call->ast && call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strncat(call->queue_string, "P", sizeof(call->queue_string)-1);
+ }
+
}
/*
/* change state */
call->state = CHAN_LCR_STATE_OUT_ALERTING;
- /* send event to asterisk */
- if (call->ast && call->pbx_started)
- ast_queue_control(call->ast, AST_CONTROL_RINGING);
+ /* queue event to asterisk */
+ if (call->ast && call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strncat(call->queue_string, "R", sizeof(call->queue_string)-1);
+ }
}
/*
*/
static void lcr_in_connect(struct chan_call *call, int message_type, union parameter *param)
{
+ union parameter newparam;
+
CDEBUG(call, call->ast, "Incomming connect (answer) from LCR.\n");
/* change state */
call->state = CHAN_LCR_STATE_CONNECT;
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, call->ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
/* copy connectinfo */
memcpy(&call->connectinfo, ¶m->connectinfo, sizeof(struct connect_info));
- /* send event to asterisk */
- if (call->ast && call->pbx_started)
- ast_queue_control(call->ast, AST_CONTROL_ANSWER);
+ /* queue event to asterisk */
+ if (call->ast && call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strncat(call->queue_string, "N", sizeof(call->queue_string)-1);
+ }
}
/*
/* if bridge, forward disconnect and return */
#ifdef TODO
feature flag
- if (call->bridge_call)
- {
+ if (call->bridge_call) {
CDEBUG(call, call->ast, "Only signal disconnect via bridge.\n");
bridge_message_if_bridged(call, message_type, param);
return;
}
#endif
/* release lcr with same cause */
- send_message(MESSAGE_RELEASE, call->ref, param);
+ send_release_and_import(call, call->cause, call->location);
call->ref = 0;
/* change to release state */
call->state = CHAN_LCR_STATE_RELEASE;
- /* release asterisk */
- if (ast)
- {
+ /* queue release asterisk */
+ if (ast) {
ast->hangupcause = call->cause;
- if (call->pbx_started)
- ast_queue_hangup(ast);
- else {
+ if (call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strcpy(call->queue_string, "H"); // overwrite other indications
+ } else {
ast_hangup(ast); // call will be destroyed here
}
}
}
/*
- * incoming setup acknowledge from LCR
+ * incoming release from LCR
*/
static void lcr_in_release(struct chan_call *call, int message_type, union parameter *param)
{
struct ast_channel *ast = call->ast;
- CDEBUG(call, call->ast, "Incomming release from LCR. (cause=%d)\n", param->disconnectinfo.cause);
+ CDEBUG(call, call->ast, "Incomming release from LCR, releasing ref. (cause=%d)\n", param->disconnectinfo.cause);
/* release ref */
call->ref = 0;
/* change to release state */
call->state = CHAN_LCR_STATE_RELEASE;
/* copy release info */
- if (!call->cause)
- {
+ if (!call->cause) {
call->cause = param->disconnectinfo.cause;
call->location = param->disconnectinfo.location;
}
- /* if we have an asterisk instance, send hangup, else we are done */
- if (ast)
- {
+ /* if we have an asterisk instance, queue hangup, else we are done */
+ if (ast) {
ast->hangupcause = call->cause;
- if (call->pbx_started)
- ast_queue_hangup(ast);
- else {
+ if (call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strcpy(call->queue_string, "H");
+ } else {
ast_hangup(ast); // call will be destroyed here
}
- } else
- {
+ } 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;
- CDEBUG(call, call->ast, "Incomming information from LCR. (dialing=%d)\n", param->information.id);
+ CDEBUG(call, call->ast, "Incoming information from LCR. (dialing=%s)\n", param->information.id);
if (!ast) return;
/* pbx not started */
- if (!call->pbx_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 */
- 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++;
+ /* change dailing state after setup */
+ if (call->state == CHAN_LCR_STATE_IN_SETUP) {
+ CDEBUG(call, call->ast, "Changing from SETUP to DIALING state.\n");
+ call->state = CHAN_LCR_STATE_IN_DIALING;
+// ast_setstate(ast, AST_STATE_DIALING);
+ }
+
+ /* queue digits */
+ if (call->state == CHAN_LCR_STATE_IN_DIALING && param->information.id[0]) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
}
+ strncat(call->queue_string, param->information.id, sizeof(call->queue_string)-1);
}
+
/* use bridge to forware message not supported by asterisk */
if (call->state == CHAN_LCR_STATE_CONNECT) {
- CDEBUG(call, call->ast, "Call is connected, briding.\n");
+ CDEBUG(call, call->ast, "Call is connected, bridging.\n");
bridge_message_if_bridged(call, message_type, param);
}
}
*/
static void lcr_in_notify(struct chan_call *call, int message_type, union parameter *param)
{
+ union parameter newparam;
+
CDEBUG(call, call->ast, "Incomming notify from LCR. (notify=%d)\n", param->notifyinfo.notify);
+ /* request bchannel, if call is resumed and we don't have it */
+ if (param->notifyinfo.notify == INFO_NOTIFY_USER_RESUMED && !call->bchannel && call->ref) {
+ CDEBUG(call, call->ast, "Reqesting bchannel at resume.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+
if (!call->ast) return;
/* use bridge to forware message not supported by asterisk */
}
/*
- * message received from LCR
+ * incoming pattern from LCR
*/
-int receive_message(int message_type, unsigned long ref, union parameter *param)
+static void lcr_in_pattern(struct chan_call *call, int message_type, union parameter *param)
{
union parameter newparam;
+
+ CDEBUG(call, call->ast, "Incomming pattern indication from LCR.\n");
+
+ if (!call->ast) return;
+
+ /* pattern are indicated only once */
+ if (call->has_pattern)
+ return;
+ call->has_pattern = 1;
+
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, call->ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ /* queue PROGRESS, because tones are available */
+ if (call->ast && call->pbx_started) {
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strncat(call->queue_string, "T", sizeof(call->queue_string)-1);
+ }
+}
+
+/*
+ * got dtmf from bchannel (locked state)
+ */
+void lcr_in_dtmf(struct chan_call *call, int val)
+{
+ struct ast_channel *ast = call->ast;
+ char digit[2];
+
+ if (!ast)
+ return;
+ if (!call->pbx_started)
+ return;
+
+ if (!call->dsp_dtmf) {
+ CDEBUG(call, call->ast, "Recognised DTMF digit '%c', but ignoring. This is fixed in later mISDN driver.\n", val);
+ return;
+ }
+
+ CDEBUG(call, call->ast, "Recognised DTMF digit '%c'.\n", val);
+ digit[0] = val;
+ digit[1] = '\0';
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strncat(call->queue_string, digit, sizeof(call->queue_string)-1);
+}
+
+/*
+ * message received from LCR
+ */
+int receive_message(int message_type, unsigned int ref, union parameter *param)
+{
struct bchannel *bchannel;
struct chan_call *call;
+ union parameter newparam;
memset(&newparam, 0, sizeof(union parameter));
/* handle bchannel message*/
- if (message_type == MESSAGE_BCHANNEL)
- {
- switch(param->bchannel.type)
- {
+ if (message_type == MESSAGE_BCHANNEL) {
+ 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)))
- {
+ CDEBUG(NULL, NULL, "Received BCHANNEL_ASSIGN message. (handle=%08lx) for ref %d\n", param->bchannel.handle, ref);
+ if ((bchannel = find_bchannel_handle(param->bchannel.handle))) {
CERROR(NULL, NULL, "bchannel handle %x already assigned.\n", (int)param->bchannel.handle);
- return(-1);
+ return -1;
}
/* create bchannel */
bchannel = alloc_bchannel(param->bchannel.handle);
- if (!bchannel)
- {
+ if (!bchannel) {
CERROR(NULL, NULL, "alloc bchannel handle %x failed.\n", (int)param->bchannel.handle);
- return(-1);
+ 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);
+ if (param->bchannel.crypt_len && param->bchannel.crypt_len <= sizeof(bchannel->b_bf_key)) {
+ bchannel->b_bf_len = param->bchannel.crypt_len;
+ memcpy(bchannel->b_bf_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)))
- {
+ call = find_call_ref(ref);
+ if (call) {
bchannel->call = call;
call->bchannel = bchannel;
-#ifdef TODO
-hier muesen alle bchannel-features gesetzt werden (pipeline...) falls sie vor dem b-kanal verfügbar waren
-#endif
+ if (call->dsp_dtmf)
+ bchannel_dtmf(bchannel, 1);
+ if (call->bf_len)
+ bchannel_blowfish(bchannel, call->bf_key, call->bf_len);
+ if (call->pipeline[0])
+ bchannel_pipeline(bchannel, call->pipeline);
+ if (call->rx_gain)
+ bchannel_gain(bchannel, call->rx_gain, 0);
+ if (call->tx_gain)
+ bchannel_gain(bchannel, call->tx_gain, 1);
if (call->bridge_id) {
CDEBUG(call, call->ast, "Join bchannel, because call is already bridged.\n");
bchannel_join(bchannel, call->bridge_id);
}
+ /* create only, if call exists, othewhise it bchannel is freed below... */
+ if (bchannel_create(bchannel, ((call->nodsp || call->faxdetect > 0)?1:0) + ((call->hdlc)?2:0), call->nodsp_queue))
+ bchannel_activate(bchannel, 1);
}
- 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);
+ /* if call has released before bchannel is assigned */
+ if (!call) {
+ newparam.bchannel.type = BCHANNEL_RELEASE;
+ newparam.bchannel.handle = param->bchannel.handle;
+ send_message(MESSAGE_BCHANNEL, 0, &newparam);
+ }
+
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)))
- {
+ if (!(bchannel = find_bchannel_handle(param->bchannel.handle))) {
CERROR(NULL, NULL, "Bchannel handle %x not assigned.\n", (int)param->bchannel.handle);
- return(-1);
+ return -1;
}
/* unklink from call and destroy bchannel */
free_bchannel(bchannel);
default:
CDEBUG(NULL, NULL, "Received unknown bchannel message %d.\n", param->bchannel.type);
}
- return(0);
+ return 0;
}
/* handle new ref */
- if (message_type == MESSAGE_NEWREF)
- {
- if (param->direction)
- {
+ if (message_type == MESSAGE_NEWREF) {
+ 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))
- {
+ CDEBUG(NULL, NULL, "Received new ref by LCR, due to incomming call. (ref=%ld)\n", ref);
+ if (!ref || find_call_ref(ref)) {
CERROR(NULL, NULL, "Illegal new ref %ld received.\n", ref);
- return(-1);
+ return -1;
}
/* allocate new call instance */
call = alloc_call();
call->state = CHAN_LCR_STATE_IN_PREPARE;
/* set ref */
call->ref = ref;
+ call->ref_was_assigned = 1;
+ /* set dtmf (default, use option 'n' to disable */
+ call->dsp_dtmf = 1;
/* wait for setup (or release from asterisk) */
- } else
- {
+ } 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)
- {
+ 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);
- return(0);
+ send_release_and_import(call, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL);
+ return 0;
}
/* store new ref */
call->ref = ref;
+ call->ref_was_assigned = 1;
+ /* set dtmf (default, use option 'n' to disable */
+ call->dsp_dtmf = 1;
/* 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)
- {
+ else if (call->state == CHAN_LCR_STATE_RELEASE) {
/* send release */
if (call->cause)
- {
- newparam.disconnectinfo.cause = call->cause;
- newparam.disconnectinfo.location = call->location;
- } else
- {
- newparam.disconnectinfo.cause = 16;
- newparam.disconnectinfo.location = 5;
- }
- send_message(MESSAGE_RELEASE, ref, &newparam);
+ send_release_and_import(call, call->cause, call->location);
+ else
+ send_release_and_import(call, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL);
/* free call */
free_call(call);
- return(0);
+ return 0;
}
}
- return(0);
+ return 0;
}
/* check ref */
- if (!ref)
- {
+ if (!ref) {
CERROR(NULL, NULL, "Received message %d without ref.\n", message_type);
- return(-1);
+ return -1;
}
call = find_call_ref(ref);
- if (!call)
- {
+ 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);
+ return 0;
}
/* handle messages */
- switch(message_type)
- {
+ switch(message_type) {
case MESSAGE_SETUP:
lcr_in_setup(call, message_type, param);
break;
break;
case MESSAGE_PATTERN: // audio available from LCR
+ if (!call->has_pattern)
+ lcr_in_pattern(call, message_type, param);
break;
case MESSAGE_NOPATTERN: // audio not available from LCR
CDEBUG(call, call->ast, "Message %d from LCR unhandled.\n", message_type);
break;
}
- return(0);
+ return 0;
}
/*
again:
call = call_first;
- while(call)
- {
+ 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");
/* release or queue release */
call->ref = 0;
call->state = CHAN_LCR_STATE_RELEASE;
- if (!call->pbx_started)
- {
+ 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);
+ if (!wake_global) {
+ wake_global = 1;
+ char byte = 0;
+ write(wake_pipe[1], &byte, 1);
+ }
+ strcpy(call->queue_string, "H");
call = call->next;
}
+
+ /* release all bchannels */
+ while(bchannel_first)
+ free_bchannel(bchannel_first);
}
+void close_socket(void);
/* asterisk handler
* warning! not thread safe
* returns -1 for socket error, 0 for no work, 1 for work
*/
-int handle_socket(void)
+static int handle_socket(struct lcr_fd *fd, unsigned int what, void *instance, int index)
{
- int work = 0;
int len;
- struct admin_message msg;
struct admin_list *admin;
+ struct admin_message msg;
- int sock;
-
- /* read from socket */
- len = read(sock, &msg, sizeof(msg));
- if (len == 0)
- {
- CERROR(NULL, NULL, "Socket closed.\n");
- return(-1); // socket closed
- }
- if (len > 0)
- {
- if (len != sizeof(msg))
- {
- CERROR(NULL, NULL, "Socket short read. (len %d)\n", len);
- return(-1); // socket error
- }
- if (msg.message != ADMIN_MESSAGE)
- {
- CERROR(NULL, NULL, "Socket received illegal message %d.\n", msg.message);
- return(-1); // socket error
+ if ((what & LCR_FD_READ)) {
+ /* read from socket */
+ len = read(lcr_sock, &msg, sizeof(msg));
+ if (len == 0) {
+ CERROR(NULL, NULL, "Socket closed.\n");
+ error:
+ CERROR(NULL, NULL, "Handling of socket failed - closing for some seconds.\n");
+ close_socket();
+ release_all_calls();
+ schedule_timer(&socket_retry, SOCKET_RETRY_TIMER, 0);
+ return 0;
}
- receive_message(msg.u.msg.type, msg.u.msg.ref, &msg.u.msg.param);
- work = 1;
- } else
- {
- if (errno != EWOULDBLOCK)
- {
+ if (len > 0) {
+ if (len != sizeof(msg)) {
+ CERROR(NULL, NULL, "Socket short read. (len %d)\n", len);
+ goto error;
+ }
+ if (msg.message != ADMIN_MESSAGE) {
+ CERROR(NULL, NULL, "Socket received illegal message %d.\n", msg.message);
+ goto error;
+ }
+ receive_message(msg.u.msg.type, msg.u.msg.ref, &msg.u.msg.param);
+ } else {
CERROR(NULL, NULL, "Socket failed (errno %d).\n", errno);
- return(-1);
+ goto error;
}
}
- /* write to socket */
- if (!admin_first)
- return(work);
- admin = admin_first;
- len = write(sock, &admin->msg, sizeof(msg));
- if (len == 0)
- {
- CERROR(NULL, NULL, "Socket closed.\n");
- return(-1); // socket closed
- }
- if (len > 0)
- {
- if (len != sizeof(msg))
- {
- CERROR(NULL, NULL, "Socket short write. (len %d)\n", len);
- return(-1); // socket error
+ if ((what & LCR_FD_WRITE)) {
+ /* write to socket */
+ if (!admin_first) {
+ socket_fd.when &= ~LCR_FD_WRITE;
+ return 0;
}
- /* free head */
- admin_first = admin->next;
- free(admin);
-
- work = 1;
- } else
- {
- if (errno != EWOULDBLOCK)
- {
+ admin = admin_first;
+ len = write(lcr_sock, &admin->msg, sizeof(msg));
+ if (len == 0) {
+ CERROR(NULL, NULL, "Socket closed.\n");
+ goto error;
+ }
+ if (len > 0) {
+ if (len != sizeof(msg)) {
+ CERROR(NULL, NULL, "Socket short write. (len %d)\n", len);
+ goto error;
+ }
+ /* free head */
+ admin_first = admin->next;
+ free(admin);
+ global_change = 1;
+ } else {
CERROR(NULL, NULL, "Socket failed (errno %d).\n", errno);
- return(-1);
+ goto error;
}
}
- return(work);
+ return 0;
}
/*
*/
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)
- {
+ if ((lcr_sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
CERROR(NULL, NULL, "Failed to create socket.\n");
- return(sock);
+ return lcr_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);
+ sprintf(sock_address.sun_path, SOCKET_NAME, options.lock);
/* connect socket */
- if ((conn = connect(sock, (struct sockaddr *)&sock_address, SUN_LEN(&sock_address))) < 0)
- {
- close(sock);
- CERROR(NULL, NULL, "Failed to connect to socket '%s'. Is LCR running?\n", sock_address.sun_path);
- return(conn);
+ if ((conn = connect(lcr_sock, (struct sockaddr *)&sock_address, SUN_LEN(&sock_address))) < 0) {
+ close(lcr_sock);
+ lcr_sock = -1;
+ CDEBUG(NULL, NULL, "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);
- CERROR(NULL, NULL, "Failed to set socket into non-blocking IO.\n");
- return(ret);
- }
+ /* register socket fd */
+ memset(&socket_fd, 0, sizeof(socket_fd));
+ socket_fd.fd = lcr_sock;
+ register_fd(&socket_fd, LCR_FD_READ | LCR_FD_EXCEPT, handle_socket, NULL, 0);
/* enque hello message */
memset(¶m, 0, sizeof(param));
strcpy(param.hello.application, "asterisk");
send_message(MESSAGE_HELLO, 0, ¶m);
- return(sock);
+ return lcr_sock;
}
-void close_socket(int sock)
+void close_socket(void)
{
+ struct admin_list *admin, *temp;
+
+ unregister_fd(&socket_fd);
+
+ /* flush pending messages */
+ admin = admin_first;
+ while(admin) {
+ temp = admin;
+ admin = admin->next;
+ free(temp);
+ }
+ admin_first = NULL;
+
/* close socket */
- if (socket >= 0)
- close(sock);
+ if (lcr_sock >= 0)
+ close(lcr_sock);
+ lcr_sock = -1;
+ global_change = 1;
}
-static void *chan_thread(void *arg)
+
+/* sending queue to asterisk */
+static int wake_event(struct lcr_fd *fd, unsigned int what, void *instance, int index)
{
- int work;
- int ret;
- union parameter param;
- time_t retry = 0, now;
+ char byte;
- bchannel_pid = getpid();
-
- memset(¶m, 0, sizeof(union parameter));
- if (lcr_sock > 0)
- time(&retry);
+ read(wake_pipe[0], &byte, 1);
- ast_mutex_lock(&chan_lock);
+ wake_global = 0;
- while(!quit) {
- work = 0;
-
- 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);
+ return 0;
+}
+
+static void handle_queue()
+{
+ struct chan_call *call;
+ struct ast_channel *ast;
+ struct ast_frame fr;
+ char *p;
+
+again:
+ call = call_first;
+ while(call) {
+ p = call->queue_string;
+ ast = call->ast;
+ if (*p && ast) {
+ if (ast_channel_trylock(ast)) {
+ ast_mutex_unlock(&chan_lock);
+ usleep(1);
+ ast_mutex_lock(&chan_lock);
+ goto again;
}
- 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);
+ while(*p) {
+ switch (*p) {
+ case 'T':
+ CDEBUG(call, ast, "Sending queued PROGRESS to Asterisk.\n");
+ ast_queue_control(ast, AST_CONTROL_PROGRESS);
+ break;
+ case 'P':
+ CDEBUG(call, ast, "Sending queued PROCEEDING to Asterisk.\n");
+ ast_queue_control(ast, AST_CONTROL_PROCEEDING);
+ break;
+ case 'R':
+ CDEBUG(call, ast, "Sending queued RINGING to Asterisk.\n");
+ ast_queue_control(ast, AST_CONTROL_RINGING);
+ ast_setstate(ast, AST_STATE_RINGING);
+ break;
+ case 'N':
+ CDEBUG(call, ast, "Sending queued ANSWER to Asterisk.\n");
+ ast_queue_control(ast, AST_CONTROL_ANSWER);
+ break;
+ case 'H':
+ CDEBUG(call, ast, "Sending queued HANGUP to Asterisk.\n");
+ ast_queue_hangup(ast);
+ break;
+ case '1': case '2': case '3': case 'A':
+ case '4': case '5': case '6': case 'B':
+ case '7': case '8': case '9': case 'C':
+ case '*': case '0': case '#': case 'D':
+ CDEBUG(call, ast, "Sending queued digit '%c' to Asterisk.\n", *p);
+ /* send digit to asterisk */
+ memset(&fr, 0, sizeof(fr));
+
+ #ifdef LCR_FOR_ASTERISK
+ fr.frametype = AST_FRAME_DTMF_BEGIN;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ fr.frametype = AST_FRAME_DTMF;
+ #endif
+
+ fr.subclass = *p;
+ fr.delivery = ast_tv(0, 0);
+ ast_queue_frame(ast, &fr);
+
+ #ifdef LCR_FOR_ASTERISK
+ fr.frametype = AST_FRAME_DTMF_END;
+ ast_queue_frame(ast, &fr);
+ #endif
+
+ break;
+ default:
+ CDEBUG(call, ast, "Ignoring queued digit 0x%02x.\n", *p);
}
- work = 1;
+ p++;
}
-
+ call->queue_string[0] = '\0';
+ ast_channel_unlock(ast);
}
+ call = call->next;
+ }
+}
- /* handle mISDN */
- ret = bchannel_handle();
- if (ret)
- work = 1;
-
- if (!work) {
- ast_mutex_unlock(&chan_lock);
- usleep(30000);
- ast_mutex_lock(&chan_lock);
- }
+static int handle_retry(struct lcr_timer *timer, void *instance, int index)
+{
+ CDEBUG(NULL, NULL, "Retry to open socket.\n");
+ if (open_socket() < 0)
+ schedule_timer(&socket_retry, SOCKET_RETRY_TIMER, 0);
+
+ return 0;
+}
+
+void lock_chan(void)
+{
+ ast_mutex_lock(&chan_lock);
+}
+
+void unlock_chan(void)
+{
+ ast_mutex_unlock(&chan_lock);
+}
+
+/* chan_lcr thread */
+static void *chan_thread(void *arg)
+{
+ if (pipe(wake_pipe) < 0) {
+ CERROR(NULL, NULL, "Failed to open pipe.\n");
+ return NULL;
+ }
+ memset(&wake_fd, 0, sizeof(wake_fd));
+ wake_fd.fd = wake_pipe[0];
+ register_fd(&wake_fd, LCR_FD_READ, wake_event, NULL, 0);
+
+ memset(&socket_retry, 0, sizeof(socket_retry));
+ add_timer(&socket_retry, handle_retry, NULL, 0);
+
+ bchannel_pid = getpid();
+
+ /* open socket the first time */
+ handle_retry(NULL, NULL, 0);
+
+ ast_mutex_lock(&chan_lock);
+
+ while(!quit) {
+ handle_queue();
+ select_main(0, &global_change, lock_chan, unlock_chan);
}
+ close_socket();
+
+ del_timer(&socket_retry);
+
+ unregister_fd(&wake_fd);
+ close(wake_pipe[0]);
+ close(wake_pipe[1]);
+
CERROR(NULL, NULL, "Thread exit.\n");
-
+
ast_mutex_unlock(&chan_lock);
return NULL;
static
struct ast_channel *lcr_request(const char *type, int format, void *data, int *cause)
{
- union parameter newparam;
+ char exten[256], *dial, *interface, *opt;
struct ast_channel *ast;
struct chan_call *call;
ast_mutex_lock(&chan_lock);
-
- CDEBUG(NULL, NULL, "Received request from Asterisk.\n");
+ CDEBUG(NULL, NULL, "Received request from Asterisk. (data=%s)\n", (char *)data);
/* if socket is closed */
- if (lcr_sock < 0)
- {
+ if (lcr_sock < 0) {
CERROR(NULL, NULL, "Rejecting call from Asterisk, because LCR not running.\n");
+ ast_mutex_unlock(&chan_lock);
return NULL;
}
-
+
/* create call instance */
call = alloc_call();
- if (!call)
- {
+ if (!call) {
/* failed to create instance */
+ ast_mutex_unlock(&chan_lock);
return NULL;
}
+
/* create asterisk channel instrance */
+
+ #ifdef LCR_FOR_ASTERISK
ast = ast_channel_alloc(1, AST_STATE_RESERVED, NULL, NULL, "", NULL, "", 0, "%s/%d", lcr_type, ++glob_channel);
- if (!ast)
- {
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ ast = ast_channel_alloc(1);
+ #endif
+
+ if (!ast) {
CERROR(NULL, NULL, "Failed to create Asterisk channel.\n");
free_call(call);
/* failed to create instance */
+ ast_mutex_unlock(&chan_lock);
return NULL;
}
- /* link together */
- ast->tech_pvt = call;
- call->ast = ast;
ast->tech = &lcr_tech;
+ ast->tech_pvt = (void *)1L; // set pointer or asterisk will not call
/* configure channel */
-#ifdef TODO
- snprintf(ast->name, sizeof(ast->name), "%s/%d", lcr_type, ++glob_channel);
- ast->name[sizeof(ast->name)-1] = '\0';
-#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->nativeformats = (options.law=='a')?AST_FORMAT_ALAW:AST_FORMAT_ULAW;
+ ast->readformat = ast->rawreadformat = ast->nativeformats;
+ ast->writeformat = ast->rawwriteformat = ast->nativeformats;
+ ast->priority = 1;
ast->hangupcause = 0;
- /* send MESSAGE_NEWREF */
- memset(&newparam, 0, sizeof(union parameter));
- newparam.direction = 0; /* request from app */
- send_message(MESSAGE_NEWREF, 0, &newparam);
+
+ /* link together */
+ call->ast = ast;
+ ast->tech_pvt = call;
+ ast->fds[0] = call->pipe[0];
+ call->pbx_started = 0;
/* set state */
call->state = CHAN_LCR_STATE_OUT_PREPARE;
- ast_mutex_unlock(&chan_lock);
+ /*
+ * Extract interface, dialstring, options from data.
+ * Formats can be:
+ * <dialstring>
+ * <interface>/<dialstring>
+ * <interface>/<dialstring>/options
+ */
+ strncpy(exten, (char *)data, sizeof(exten)-1);
+ exten[sizeof(exten)-1] = '\0';
+ if ((dial = strchr(exten, '/'))) {
+ *dial++ = '\0';
+ interface = exten;
+ if ((opt = strchr(dial, '/')))
+ *opt++ = '\0';
+ else
+ opt = "";
+ } else {
+ dial = exten;
+ interface = "";
+ opt = "";
+ }
+ strncpy(call->interface, interface, sizeof(call->interface)-1);
+ strncpy(call->dialstring, dial, sizeof(call->dialstring)-1);
+ apply_opt(call, (char *)opt);
+ ast_mutex_unlock(&chan_lock);
return ast;
}
*/
static int lcr_call(struct ast_channel *ast, char *dest, int timeout)
{
+ union parameter newparam;
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");
+
+ #ifdef LCR_FOR_CALLWEAVER
+ ast->type = "LCR";
+ snprintf(ast->name, sizeof(ast->name), "LCR/%s-%04x",call->dialstring, ast_random() & 0xffff);
+ #endif
+
+ if (!call) {
+ CERROR(NULL, ast, "Received call from Asterisk, but call instance does not exist.\n");
ast_mutex_unlock(&chan_lock);
return -1;
}
- CDEBUG(call, ast, "Received call from Asterisk.\n");
+ CDEBUG(NULL, ast, "Received call from Asterisk.\n");
+ /* pbx process is started */
call->pbx_started = 1;
+ /* send MESSAGE_NEWREF */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.direction = 0; /* request from app */
+ send_message(MESSAGE_NEWREF, 0, &newparam);
+
+ /* set hdlc if capability requires hdlc */
+ if (ast->transfercapability == INFO_BC_DATAUNRESTRICTED
+ || ast->transfercapability == INFO_BC_DATARESTRICTED
+ || ast->transfercapability == INFO_BC_VIDEO)
+ call->hdlc = 1;
+ /* if hdlc is forced by option, we change transcap to data */
+ if (call->hdlc
+ && ast->transfercapability != INFO_BC_DATAUNRESTRICTED
+ && ast->transfercapability != INFO_BC_DATARESTRICTED
+ && ast->transfercapability != INFO_BC_VIDEO)
+ ast->transfercapability = INFO_BC_DATAUNRESTRICTED;
+
+ call->cid_num[0] = 0;
+ call->cid_name[0] = 0;
+ call->cid_rdnis[0] = 0;
+
+ if (ast->cid.cid_num) if (ast->cid.cid_num[0])
+ strncpy(call->cid_num, ast->cid.cid_num,
+ sizeof(call->cid_num)-1);
- /* send setup message, if we already have a callref */
- if (call->ref)
- send_setup_to_lcr(call);
+ if (ast->cid.cid_name) if (ast->cid.cid_name[0])
+ strncpy(call->cid_name, ast->cid.cid_name,
+ sizeof(call->cid_name)-1);
+ if (ast->cid.cid_rdnis) if (ast->cid.cid_rdnis[0])
+ strncpy(call->cid_rdnis, ast->cid.cid_rdnis,
+ sizeof(call->cid_rdnis)-1);
ast_mutex_unlock(&chan_lock);
return 0;
}
+static void send_digit_to_chan(struct ast_channel * ast, char digit )
+{
+ static const char* dtmf_tones[] = {
+ "!941+1336/100,!0/100", /* 0 */
+ "!697+1209/100,!0/100", /* 1 */
+ "!697+1336/100,!0/100", /* 2 */
+ "!697+1477/100,!0/100", /* 3 */
+ "!770+1209/100,!0/100", /* 4 */
+ "!770+1336/100,!0/100", /* 5 */
+ "!770+1477/100,!0/100", /* 6 */
+ "!852+1209/100,!0/100", /* 7 */
+ "!852+1336/100,!0/100", /* 8 */
+ "!852+1477/100,!0/100", /* 9 */
+ "!697+1633/100,!0/100", /* A */
+ "!770+1633/100,!0/100", /* B */
+ "!852+1633/100,!0/100", /* C */
+ "!941+1633/100,!0/100", /* D */
+ "!941+1209/100,!0/100", /* * */
+ "!941+1477/100,!0/100" }; /* # */
+
+ if (digit >= '0' && digit <='9')
+ ast_playtones_start(ast,0,dtmf_tones[digit-'0'], 0);
+ else if (digit >= 'A' && digit <= 'D')
+ ast_playtones_start(ast,0,dtmf_tones[digit-'A'+10], 0);
+ else if (digit == '*')
+ ast_playtones_start(ast,0,dtmf_tones[14], 0);
+ else if (digit == '#')
+ ast_playtones_start(ast,0,dtmf_tones[15], 0);
+ else {
+ /* not handled */
+ CDEBUG(NULL, ast, "Unable to handle DTMF tone "
+ "'%c' for '%s'\n", digit, ast->name);
+ }
+}
+
+#ifdef LCR_FOR_ASTERISK
+static int lcr_digit_begin(struct ast_channel *ast, char digit)
+#endif
+#ifdef LCR_FOR_CALLWEAVER
static int lcr_digit(struct ast_channel *ast, char digit)
+#endif
{
struct chan_call *call;
union parameter newparam;
char buf[]="x";
+#ifdef LCR_FOR_CALLWEAVER
+ int inband_dtmf = 0;
+#endif
+
/* only pass IA5 number space */
if (digit > 126 || digit < 32)
return 0;
ast_mutex_lock(&chan_lock);
call = ast->tech_pvt;
- if (!call) {
+ 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");
+ CDEBUG(call, ast, "Received digit '%c' from Asterisk.\n", digit);
/* send information or queue them */
- if (call->ref && call->state == CHAN_LCR_STATE_OUT_DIALING)
- {
+ 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->keypad) {
+ newparam.information.keypad[0] = digit;
+ newparam.information.keypad[1] = '\0';
+ } else {
+ newparam.information.id[0] = digit;
+ newparam.information.id[1] = '\0';
+ }
send_message(MESSAGE_INFORMATION, call->ref, &newparam);
} else
if (!call->ref
- && (call->state == CHAN_LCR_STATE_OUT_PREPARE || call->state == CHAN_LCR_STATE_OUT_SETUP));
- {
+ && (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);
}
ast_mutex_unlock(&chan_lock);
-
- return(0);
+
+#ifdef LCR_FOR_ASTERISK
+ return 0;
+}
+
+static int lcr_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
+{
+ int inband_dtmf = 0;
+ struct chan_call *call;
+#endif
+
+ 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, "DIGIT END '%c' from Asterisk.\n", digit);
+
+ if (call->state == CHAN_LCR_STATE_CONNECT && call->inband_dtmf) {
+ inband_dtmf = 1;
+ }
+
+ ast_mutex_unlock(&chan_lock);
+
+ if (inband_dtmf) {
+ CDEBUG(call, ast, "-> sending '%c' inband.\n", digit);
+ send_digit_to_chan(ast, digit);
+ }
+
+ return 0;
}
static int lcr_answer(struct ast_channel *ast)
ast_mutex_lock(&chan_lock);
call = ast->tech_pvt;
- if (!call) {
+ 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");
+ CDEBUG(call, ast, "Received answer from Asterisk (maybe during lcr_bridge).\n");
/* copy connectinfo, if bridged */
if (call->bridge_call)
memcpy(&call->connectinfo, &call->bridge_call->connectinfo, sizeof(struct connect_info));
/* send connect message to lcr */
- memset(&newparam, 0, sizeof(union parameter));
- memcpy(&newparam.connectinfo, &call->connectinfo, sizeof(struct connect_info));
- send_message(MESSAGE_CONNECT, call->ref, &newparam);
+ if (call->state != CHAN_LCR_STATE_CONNECT) {
+ memset(&newparam, 0, sizeof(union parameter));
+ memcpy(&newparam.connectinfo, &call->connectinfo, sizeof(struct connect_info));
+ send_message(MESSAGE_CONNECT, call->ref, &newparam);
+ call->state = CHAN_LCR_STATE_CONNECT;
+ }
/* change state */
- call->state = CHAN_LCR_STATE_CONNECT;
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ /* enable keypad */
+// memset(&newparam, 0, sizeof(union parameter));
+// send_message(MESSAGE_ENABLEKEYPAD, call->ref, &newparam);
ast_mutex_unlock(&chan_lock);
return 0;
static int lcr_hangup(struct ast_channel *ast)
{
- union parameter newparam;
struct chan_call *call;
pthread_t tid = pthread_self();
- if (!pthread_equal(tid, chan_tid))
+ if (!pthread_equal(tid, chan_tid)) {
ast_mutex_lock(&chan_lock);
+ }
call = ast->tech_pvt;
- if (!call) {
+ if (!call) {
CERROR(NULL, ast, "Received hangup from Asterisk, but no call instance exists.\n");
- if (!pthread_equal(tid, chan_tid))
+ if (!pthread_equal(tid, chan_tid)) {
ast_mutex_unlock(&chan_lock);
+ }
return -1;
}
/* disconnect asterisk, maybe not required */
ast->tech_pvt = NULL;
ast->fds[0] = -1;
- if (call->ref)
- {
+ 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);
+ if (ast->hangupcause > 0)
+ send_release_and_import(call, ast->hangupcause, LOCATION_PRIVATE_LOCAL);
+ else
+ send_release_and_import(call, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL);
/* remove call */
free_call(call);
- if (!pthread_equal(tid, chan_tid))
+ if (!pthread_equal(tid, chan_tid)) {
ast_mutex_unlock(&chan_lock);
+ }
return 0;
- } else
- {
+ } else {
/* ref is not set, due to prepare setup or release */
- if (call->state == CHAN_LCR_STATE_RELEASE)
- {
+ 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
- {
+ } 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;
+ call->ast = NULL;
}
}
- if (!pthread_equal(tid, chan_tid))
+ 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;
- unsigned char buffer[1024], *s, *d = buffer;
- int i, ii;
+ if (!f->subclass)
+ CDEBUG(NULL, ast, "No subclass\n");
+ if (!(f->subclass & ast->nativeformats))
+ CDEBUG(NULL, ast, "Unexpected format.\n");
+
ast_mutex_lock(&chan_lock);
call = ast->tech_pvt;
- if (!call) {
+ 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);
- }
+ if (call->bchannel && f->samples)
+ bchannel_transmit(call->bchannel, *((unsigned char **)&(f->data)), f->samples);
ast_mutex_unlock(&chan_lock);
return 0;
}
static struct ast_frame *lcr_read(struct ast_channel *ast)
{
struct chan_call *call;
- int i, len;
- unsigned char *p;
+ int len = 0;
ast_mutex_lock(&chan_lock);
call = ast->tech_pvt;
- if (!call) {
+ 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;
+ if (call->pipe[0] > -1) {
+ if (call->rebuffer && !call->hdlc) {
+ /* Make sure we have a complete 20ms (160byte) frame */
+ len=read(call->pipe[0],call->read_buff + call->framepos, 160 - call->framepos);
+ if (len > 0) {
+ call->framepos += len;
+ }
+ } else {
+ len = read(call->pipe[0], call->read_buff, sizeof(call->read_buff));
+ }
+ if (len < 0 && errno == EAGAIN) {
+ ast_mutex_unlock(&chan_lock);
- p = call->read_buff;
- for (i = 0; i < len; i++) {
- *p = flip_bits[*p];
- p++;
+ #ifdef LCR_FOR_ASTERISK
+ return &ast_null_frame;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ return &nullframe;
+ #endif
+
+ }
+ if (len <= 0) {
+ close(call->pipe[0]);
+ call->pipe[0] = -1;
+ global_change = 1;
+ ast_mutex_unlock(&chan_lock);
+ return NULL;
+ } else if (call->rebuffer && call->framepos < 160) {
+ /* Not a complete frame, so we send a null-frame */
+ ast_mutex_unlock(&chan_lock);
+ return &ast_null_frame;
+ }
}
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.subclass = ast->nativeformats;
+ if (call->rebuffer) {
+ call->read_fr.datalen = call->framepos;
+ call->read_fr.samples = call->framepos;
+ call->framepos = 0;
+ } else {
+ 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;
+ *((unsigned char **)&(call->read_fr.data)) = call->read_buff;
ast_mutex_unlock(&chan_lock);
return &call->read_fr;
static int lcr_indicate(struct ast_channel *ast, int cond, const void *data, size_t datalen)
{
union parameter newparam;
- int res = -1;
+ int res = 0;
struct chan_call *call;
+ const struct tone_zone_sound *ts = NULL;
ast_mutex_lock(&chan_lock);
call = ast->tech_pvt;
- if (!call) {
+ 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;
- newparam.disconnectinfo.location = 5;
- send_message(MESSAGE_DISCONNECT, call->ref, &newparam);
- /* change state */
- call->state = CHAN_LCR_STATE_OUT_DISCONNECT;
- /* return */
- ast_mutex_unlock(&chan_lock);
- return 0;
+ ast_setstate(ast, AST_STATE_BUSY);
+ if (call->state != CHAN_LCR_STATE_OUT_DISCONNECT) {
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = 17;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_DISCONNECT, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_DISCONNECT;
+ } else {
+ CDEBUG(call, ast, "Using Asterisk 'busy' indication\n");
+ ts = ast_get_indication_tone(ast->zone, "busy");
+ }
+ break;
case AST_CONTROL_CONGESTION:
- CDEBUG(call, ast, "Received indicate AST_CONTROL_CONGESTION from Asterisk.\n");
- /* return */
- ast_mutex_unlock(&chan_lock);
- return -1;
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_CONGESTION from Asterisk. (cause %d)\n", ast->hangupcause);
+ if (call->state != CHAN_LCR_STATE_OUT_DISCONNECT) {
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.disconnectinfo.cause = ast->hangupcause;
+ newparam.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ send_message(MESSAGE_DISCONNECT, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_OUT_DISCONNECT;
+ } else {
+ CDEBUG(call, ast, "Using Asterisk 'congestion' indication\n");
+ ts = ast_get_indication_tone(ast->zone, "congestion");
+ }
+ break;
+ case AST_CONTROL_PROCEEDING:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_PROCEEDING from Asterisk.\n");
+ if (call->state == CHAN_LCR_STATE_IN_SETUP
+ || call->state == CHAN_LCR_STATE_IN_DIALING) {
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ send_message(MESSAGE_PROCEEDING, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_PROCEEDING;
+ }
+ break;
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);
- /* change state */
- call->state = CHAN_LCR_STATE_OUT_ALERTING;
- /* return */
- ast_mutex_unlock(&chan_lock);
- return 0;
+ ast_setstate(ast, AST_STATE_RING);
+ if (call->state == CHAN_LCR_STATE_IN_SETUP
+ || call->state == CHAN_LCR_STATE_IN_DIALING
+ || call->state == CHAN_LCR_STATE_IN_PROCEEDING) {
+ /* send message to lcr */
+ memset(&newparam, 0, sizeof(union parameter));
+ send_message(MESSAGE_ALERTING, call->ref, &newparam);
+ /* change state */
+ call->state = CHAN_LCR_STATE_IN_ALERTING;
+ } else {
+ CDEBUG(call, ast, "Using Asterisk 'ring' indication\n");
+ ts = ast_get_indication_tone(ast->zone, "ring");
+ }
+ break;
+ case AST_CONTROL_PROGRESS:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_PROGRESS from Asterisk.\n");
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ break;
case -1:
- /* return */
- ast_mutex_unlock(&chan_lock);
- return 0;
+ CDEBUG(call, ast, "Received indicate -1.\n");
+ ast_playtones_stop(ast);
+ res = -1;
+ break;
case AST_CONTROL_VIDUPDATE:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_VIDUPDATE.\n");
res = -1;
break;
case AST_CONTROL_HOLD:
memset(&newparam, 0, sizeof(union parameter));
newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_HOLD;
send_message(MESSAGE_NOTIFY, call->ref, &newparam);
+
+ /*start music onhold*/
+ #ifdef LCR_FOR_ASTERISK
+ ast_moh_start(ast,data,ast->musicclass);
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ ast_moh_start(ast, NULL);
+ #endif
+
+ call->on_hold = 1;
break;
case AST_CONTROL_UNHOLD:
CDEBUG(call, ast, "Received indicate AST_CONTROL_UNHOLD from Asterisk.\n");
memset(&newparam, 0, sizeof(union parameter));
newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
send_message(MESSAGE_NOTIFY, call->ref, &newparam);
- break;
+ /*stop moh*/
+ ast_moh_stop(ast);
+ call->on_hold = 0;
+ break;
+#ifdef AST_CONTROL_SRCUPDATE
+ case AST_CONTROL_SRCUPDATE:
+#else
+ case 20:
+#endif
+ CDEBUG(call, ast, "Received AST_CONTROL_SRCUPDATE from Asterisk.\n");
+ break;
default:
CERROR(call, ast, "Received indicate from Asterisk with unknown condition %d.\n", cond);
- /* return */
- ast_mutex_unlock(&chan_lock);
- return -1;
+ res = -1;
+ break;
}
+ if (ts && ts->data[0]) {
+ ast_playtones_start(ast, 0, ts->data, 1);
+ }
+
/* return */
ast_mutex_unlock(&chan_lock);
- return 0;
+ return res;
+}
+
+/*
+ * fixup asterisk
+ */
+static int lcr_fixup(struct ast_channel *oldast, struct ast_channel *ast)
+{
+ struct chan_call *call;
+
+ if (!ast) {
+ return -1;
+ }
+
+ ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received fixup from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ CDEBUG(call, ast, "Received fixup from Asterisk.\n");
+ call->ast = ast;
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
+
+/*
+ * send_text asterisk
+ */
+static int lcr_send_text(struct ast_channel *ast, const char *text)
+{
+ struct chan_call *call;
+ union parameter newparam;
+
+ ast_mutex_lock(&chan_lock);
+ call = ast->tech_pvt;
+ if (!call) {
+ CERROR(NULL, ast, "Received send_text from Asterisk, but no call instance exists.\n");
+ ast_mutex_unlock(&chan_lock);
+ return -1;
+ }
+
+ CDEBUG(call, ast, "Received send_text from Asterisk. (text=%s)\n", text);
+ memset(&newparam, 0, sizeof(union parameter));
+ strncpy(newparam.notifyinfo.display, text, sizeof(newparam.notifyinfo.display)-1);
+ send_message(MESSAGE_NOTIFY, call->ref, &newparam);
+ ast_mutex_unlock(&chan_lock);
+ return 0;
}
/*
{
struct chan_call *call1, *call2;
struct ast_channel *carr[2], *who;
- int to = -1;
+ int to;
struct ast_frame *f;
int bridge_id;
- CDEBUG(NULL, NULL, "Received briding request from Asterisk.\n");
-
+ CDEBUG(NULL, NULL, "Received bridging request from Asterisk.\n");
+
+ carr[0] = ast1;
+ carr[1] = ast2;
+
/* join via dsp (if the channels are currently open) */
ast_mutex_lock(&chan_lock);
- bridge_id = new_bridge_id();
call1 = ast1->tech_pvt;
call2 = ast2->tech_pvt;
- if (call1 && call2)
- {
+ if (!call1 || !call2) {
+ CDEBUG(NULL, NULL, "Bridge, but we don't have two call instances, exitting.\n");
+ ast_mutex_unlock(&chan_lock);
+ return AST_BRIDGE_COMPLETE;
+ }
+
+ /* join, if both call instances uses dsp
+ ignore the case of fax detection here it may be benificial for ISDN fax machines or pass through.
+ */
+ if (!call1->nodsp && !call2->nodsp) {
+ CDEBUG(NULL, NULL, "Both calls use DSP, bridging via DSP.\n");
+
+ /* get bridge id and join */
+ bridge_id = new_bridge_id();
+
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;
+ } else
+ if (call1->nodsp && call2->nodsp)
+ CDEBUG(NULL, NULL, "Both calls use no DSP, bridging in channel driver.\n");
+ else
+ CDEBUG(NULL, NULL, "One call uses no DSP, bridging in channel driver.\n");
+ call1->bridge_call = call2;
+ call2->bridge_call = call1;
+
+ if (call1->state == CHAN_LCR_STATE_IN_SETUP
+ || call1->state == CHAN_LCR_STATE_IN_DIALING
+ || call1->state == CHAN_LCR_STATE_IN_PROCEEDING
+ || call1->state == CHAN_LCR_STATE_IN_ALERTING) {
+ CDEBUG(call1, ast1, "Bridge established before lcr_answer, so we call it ourself: Calling lcr_answer...\n");
+ lcr_answer(ast1);
+ }
+ if (call2->state == CHAN_LCR_STATE_IN_SETUP
+ || call2->state == CHAN_LCR_STATE_IN_DIALING
+ || call2->state == CHAN_LCR_STATE_IN_PROCEEDING
+ || call2->state == CHAN_LCR_STATE_IN_ALERTING) {
+ CDEBUG(call2, ast2, "Bridge established before lcr_answer, so we call it ourself: Calling lcr_answer...\n");
+ lcr_answer(ast2);
+ }
+
+ /* sometimes SIP phones forget to send RETRIEVE before TRANSFER
+ so let's do it for them. Hmpf.
+ */
+
+ if (call1->on_hold) {
+ union parameter newparam;
+
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
+ send_message(MESSAGE_NOTIFY, call1->ref, &newparam);
+
+ call1->on_hold = 0;
+ }
+
+ if (call2->on_hold) {
+ union parameter newparam;
+
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
+ send_message(MESSAGE_NOTIFY, call2->ref, &newparam);
+
+ call2->on_hold = 0;
}
+
ast_mutex_unlock(&chan_lock);
while(1) {
+ to = -1;
who = ast_waitfor_n(carr, 2, &to);
if (!who) {
f = ast_read(who);
if (!f || f->frametype == AST_FRAME_CONTROL) {
+ if (!f)
+ CDEBUG(NULL, NULL, "Got hangup.\n");
+ else
+ CDEBUG(NULL, NULL, "Got CONTROL.\n");
/* got hangup .. */
*fo=f;
*rc=who;
}
if ( f->frametype == AST_FRAME_DTMF ) {
+ CDEBUG(NULL, NULL, "Got DTMF.\n");
*fo=f;
*rc=who;
break;
}
- CDEBUG(NULL, NULL, "Releasing bride.\n");
+ CDEBUG(NULL, NULL, "Releasing bridge.\n");
/* split channels */
ast_mutex_lock(&chan_lock);
call1 = ast1->tech_pvt;
call2 = ast2->tech_pvt;
- if (call1)
- {
+ if (call1 && call1->bridge_id) {
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)
- {
+ if (call2 && call1->bridge_id) {
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;
}
+ call1->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",
- .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,
- .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
+ .description = "Channel driver for connecting to Linux-Call-Router",
+ .capabilities = AST_FORMAT_ALAW,
+ .requester = lcr_request,
+
+ #ifdef LCR_FOR_ASTERISK
+ .send_digit_begin = lcr_digit_begin,
+ .send_digit_end = lcr_digit_end,
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ .send_digit = lcr_digit,
+ #endif
+
+ .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
};
/*
* cli
*/
+#if 0
static int lcr_show_lcr (int fd, int argc, char *argv[])
{
return 0;
"Unloads LCR port, port is closes by mISDN",
"Usage: lcr port unload \"<port>\"\n",
};
+#endif
+
+
+#ifdef LCR_FOR_ASTERISK
+static int lcr_config_exec(struct ast_channel *ast, void *data)
+#endif
+
+#ifdef LCR_FOR_CALLWEAVER
+static int lcr_config_exec(struct ast_channel *ast, void *data, char **argv)
+#endif
+{
+ struct chan_call *call;
+
+ ast_mutex_lock(&chan_lock);
+
+ #ifdef LCR_FOR_ASTERISK
+ CDEBUG(NULL, ast, "Received lcr_config (data=%s)\n", (char *)data);
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ CDEBUG(NULL, ast, "Received lcr_config (data=%s)\n", argv[0]);
+ #endif
+
+ /* find channel */
+ call = call_first;
+ while(call) {
+ if (call->ast == ast)
+ break;
+ call = call->next;
+ }
+ if (call)
+
+ #ifdef LCR_FOR_ASTERISK
+ apply_opt(call, (char *)data);
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ apply_opt(call, (char *)argv[0]);
+ #endif
+
+ else
+ CERROR(NULL, ast, "lcr_config app not called by chan_lcr channel.\n");
+ ast_mutex_unlock(&chan_lock);
+ return 0;
+}
/*
* module loading and destruction
*/
int load_module(void)
{
- int i;
+ u_short i;
+ char options_error[256];
- for (i = 0; i < 256; i++)
+ 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);
+ | (i<<7) | ((i&2)<<5) | ((i&4)<<3) | ((i&8)<<1);
+ }
+
+ if (read_options(options_error) == 0) {
+ CERROR(NULL, NULL, "%s", options_error);
+
+ #ifdef LCR_FOR_ASTERISK
+ return AST_MODULE_LOAD_DECLINE;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ return 0;
+ #endif
+
+ }
ast_mutex_init(&chan_lock);
ast_mutex_init(&log_lock);
-
- if (!(lcr_sock = open_socket())) {
- /* continue with closed socket */
- }
- if (!bchannel_initialize()) {
+ if (bchannel_initialize()) {
CERROR(NULL, NULL, "Unable to open mISDN device\n");
- close_socket(lcr_sock);
- return -1;
+ close_socket();
+
+ #ifdef LCR_FOR_ASTERISK
+ return AST_MODULE_LOAD_DECLINE;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ return 0;
+ #endif
}
mISDN_created = 1;
+ lcr_tech.capabilities = (options.law=='a')?AST_FORMAT_ALAW:AST_FORMAT_ULAW;
if (ast_channel_register(&lcr_tech)) {
CERROR(NULL, NULL, "Unable to register channel class\n");
bchannel_deinitialize();
- close_socket(lcr_sock);
- return -1;
+ close_socket();
+
+ #ifdef LCR_FOR_ASTERISK
+ return AST_MODULE_LOAD_DECLINE;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ return 0;
+ #endif
}
+
+ ast_register_application("lcr_config", lcr_config_exec, "lcr_config",
+
+ #ifdef LCR_FOR_ASTERISK
+ "lcr_config(<opt><optarg>:<opt>:...)\n"
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ "lcr_config(<opt><optarg>:<opt>:...)\n",
+ #endif
+
+ "Sets LCR opts. and optargs\n"
+ "\n"
+ "The available options are:\n"
+ " d - Send display text on called phone, text is the optarg.\n"
+ " n - Don't detect dtmf tones on called channel.\n"
+ " h - Force data call (HDLC).\n"
+ " t - Disable mISDN_dsp features (required for fax application).\n"
+ " q - Add queue to make fax stream seamless (required for fax app).\n"
+ " Use queue size in miliseconds for optarg. (try 250)\n"
+ " f - Adding fax detection. It it timeouts, mISDN_dsp is used.\n"
+ " Use time to detect for optarg.\n"
+ " c - Make crypted outgoing call, optarg is keyindex.\n"
+ " e - Perform echo cancelation on this channel.\n"
+ " Takes mISDN pipeline option as optarg.\n"
+ " s - Send Non Inband DTMF as inband.\n"
+ " r - re-buffer packets (160 bytes). Required for some SIP-phones and fax applications.\n"
+ " vr - rxgain control\n"
+ " vt - txgain control\n"
+ " Volume changes at factor 2 ^ optarg.\n"
+ " k - use keypad to dial this call.\n"
+ "\n"
+ "set LCR_TRANSFERCAPABILITY to the numerical bearer capabilty in order to alter caller's capability\n"
+ " -> use 16 for fax (3.1k audio)\n"
+ "\n"
+ "To send a fax, you need to set LCR_TRANSFERCAPABILITY environment to 16, also you need to set\n"
+ "options: \"n:t:q250\" for seamless audio transmission.\n"
+ );
+
#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);
-
-=======
- //lcr_cfg_get( 0, LCR_GEN_TRACEFILE, global_tracefile, BUFFERSIZE);
#endif
quit = 0;
- if ((pthread_create(&chan_tid, NULL, chan_thread, NULL)<0))
- {
+ if ((pthread_create(&chan_tid, NULL, chan_thread, NULL)<0)) {
/* failed to create thread */
bchannel_deinitialize();
- close_socket(lcr_sock);
+ close_socket();
ast_channel_unregister(&lcr_tech);
- return -1;
+
+ #ifdef LCR_FOR_ASTERISK
+ return AST_MODULE_LOAD_DECLINE;
+ #endif
+
+ #ifdef LCR_FOR_CALLWEAVER
+ return 0;
+ #endif
+
}
return 0;
}
ast_channel_unregister(&lcr_tech);
+ ast_unregister_application("lcr_config");
+
+
if (mISDN_created) {
bchannel_deinitialize();
mISDN_created = 0;
return 0;
}
-#ifdef TODO
-mutex init fehlt noch
-ast_mutex_t usecnt_lock;
-int usecnt;
+#ifdef LCR_FOR_ASTERISK
+#define AST_MODULE "chan_lcr"
+#endif
+#ifdef LCR_FOR_CALLWEAVER
int usecount(void)
+hae
{
int res;
ast_mutex_lock(&usecnt_lock);
}
#endif
+#ifdef LCR_FOR_ASTERISK
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Channel driver for Linux-Call-Router Support (ISDN BRI/PRI)",
+ .load = load_module,
+ .unload = unload_module,
+ .reload = reload_module,
+ );
+#endif
-char *desc="Channel driver for lcr";
-
+#ifdef LCR_FOR_CALLWEAVER
char *description(void)
{
return desc;
}
-
-char *key(void)
-{
- return ASTERISK_GPL_KEY;
-}
-
-
+#endif
projects / lcr.git / blobdiff