1 /*****************************************************************************\
3 ** Linux Call Router **
5 **---------------------------------------------------------------------------**
6 ** Copyright: Andreas Eversberg **
8 ** mISDN port abstraction for dss1 and sip **
10 \*****************************************************************************/
16 #include <sys/ioctl.h>
17 #include <sys/types.h>
21 #include <netinet/udp.h>
22 #include <netinet/in.h>
24 #include <sys/socket.h>
26 #include <linux/mISDNif.h>
31 #include <mISDNuser/net_l2.h>
35 #ifndef ISDN_PID_L4_B_USER
36 #define ISDN_PID_L4_B_USER 0x440000ff
39 /* list of mISDN ports */
40 struct mISDNport *mISDNport_first;
42 /* noise randomizer */
43 unsigned char mISDN_rand[256];
44 int mISDN_rand_count = 0;
49 int mISDN_initialize(void)
51 /* try to open raw socket to check kernel */
52 mISDNsocket = socket(PF_ISDN, SOCK_RAW, ISDN_P_BASE);
55 fprintf(stderr, "Cannot open mISDN due to %s. (Does your Kernel support socket based mISDN?)\n", strerror(errno));
59 /* initialize stuff of the NT lib */
60 if (options.deb & DEBUG_STACK)
62 global_debug = 0xffffffff & ~DBGM_MSG;
63 // global_debug = DBGM_L3DATA;
65 global_debug = DBGM_MAN;
66 SPRINT(debug_log, "%s/debug.log", INSTALL_DATA);
67 if (options.deb & DEBUG_LOG)
68 mISDN_debug_init(global_debug, debug_log, debug_log, debug_log);
70 mISDN_debug_init(global_debug, NULL, NULL, NULL);
73 init_layer3(4); // buffer of 4
78 void mISDN_deinitialize(void)
88 int entity = 0; /* used for udevice */
89 int mISDNdevice = -1; /* the device handler and port list */
91 int mISDN_initialize(void)
94 unsigned char buff[1025];
95 iframe_t *frm = (iframe_t *)buff;
98 /* initialize stuff of the NT lib */
99 if (options.deb & DEBUG_STACK)
101 global_debug = 0xffffffff & ~DBGM_MSG;
102 // global_debug = DBGM_L3DATA;
104 global_debug = DBGM_MAN;
105 SPRINT(debug_log, "%s/debug.log", INSTALL_DATA);
106 if (options.deb & DEBUG_LOG)
107 debug_init(global_debug, debug_log, debug_log, debug_log);
109 debug_init(global_debug, NULL, NULL, NULL);
112 /* open mISDNdevice if not already open */
118 fprintf(stderr, "cannot open mISDN device ret=%d errno=%d (%s) Check for mISDN modules!\nAlso did you create \"/dev/mISDN\"? Do: \"mknod /dev/mISDN c 46 0\"\n", ret, errno, strerror(errno));
122 PDEBUG(DEBUG_ISDN, "mISDN device opened.\n");
124 /* create entity for layer 3 TE-mode */
125 mISDN_write_frame(mISDNdevice, buff, 0, MGR_NEWENTITY | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
126 ret = mISDN_read_frame(mISDNdevice, frm, sizeof(iframe_t), 0, MGR_NEWENTITY | CONFIRM, TIMEOUT_1SEC);
127 if (ret < (int)mISDN_HEADER_LEN)
130 FATAL("Cannot request MGR_NEWENTITY from mISDN. Exitting due to software bug.");
132 entity = frm->dinfo & 0xffff;
135 PDEBUG(DEBUG_ISDN, "our entity for l3-processes is %d.\n", entity);
140 void mISDN_deinitialize(void)
142 unsigned char buff[1025];
146 if (mISDNdevice >= 0)
149 mISDN_write_frame(mISDNdevice, buff, 0, MGR_DELENTITY | REQUEST, entity, 0, NULL, TIMEOUT_1SEC);
151 mISDN_close(mISDNdevice);
153 PDEBUG(DEBUG_ISDN, "mISDN device closed.\n");
161 PmISDN::PmISDN(int type, mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive) : Port(type, portname, settings)
163 p_m_mISDNport = mISDNport;
164 p_m_portnum = mISDNport->portnum;
171 p_m_txvol = p_m_rxvol = 0;
179 p_m_dtmf = !mISDNport->ifport->nodtmf;
182 p_m_remote_ref = 0; /* channel shall be exported to given remote */
183 p_m_remote_id = 0; /* channel shall be exported to given remote */
191 p_m_crypt_listen = 0;
192 p_m_crypt_msg_loops = 0;
193 p_m_crypt_msg_loops = 0;
194 p_m_crypt_msg_len = 0;
195 p_m_crypt_msg[0] = '\0';
196 p_m_crypt_msg_current = 0;
197 p_m_crypt_key[0] = '\0';
198 p_m_crypt_key_len = 0;
199 p_m_crypt_listen = 0;
200 p_m_crypt_listen_state = 0;
201 p_m_crypt_listen_len = 0;
202 p_m_crypt_listen_msg[0] = '\0';
203 p_m_crypt_listen_crc = 0;
205 /* if any channel requested by constructor */
206 if (channel == CHANNEL_ANY)
208 /* reserve channel */
210 mISDNport->b_reserved++;
213 /* reserve channel */
214 if (channel > 0) // only if constructor was called with a channel resevation
215 seize_bchannel(channel, exclusive);
217 /* we increase the number of objects: */
219 PDEBUG(DEBUG_ISDN, "Created new mISDNPort(%s). Currently %d objects use, port #%d\n", portname, mISDNport->use, p_m_portnum);
228 struct message *message;
230 /* remove bchannel relation */
236 PDEBUG(DEBUG_ISDN, "destroy mISDNPort(%s). endpoint still exists, releaseing.\n", p_name);
237 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
238 message->param.disconnectinfo.cause = 16;
239 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
240 message_put(message);
241 /* remove from list */
242 free_epointlist(p_epointlist);
245 /* we decrease the number of objects: */
246 p_m_mISDNport->use--;
247 PDEBUG(DEBUG_ISDN, "destroyed mISDNPort(%s). Currently %d objects\n", p_name, p_m_mISDNport->use);
254 void chan_trace_header(struct mISDNport *mISDNport, class PmISDN *port, char *msgtext, int direction)
256 /* init trace with given values */
257 start_trace(mISDNport?mISDNport->portnum:0,
258 (mISDNport)?((mISDNport->ifport)?mISDNport->ifport->interface:NULL):NULL,
259 port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype):NULL,
260 port?port->p_dialinginfo.id:NULL,
263 port?port->p_serial:0,
271 static struct isdn_message {
275 {"TIMEOUT", CC_TIMEOUT},
277 {"SETUP_ACK", CC_SETUP_ACKNOWLEDGE},
278 {"PROCEEDING", CC_PROCEEDING},
279 {"ALERTING", CC_ALERTING},
280 {"CONNECT", CC_CONNECT},
281 {"CONNECT RES", CC_CONNECT},
282 {"CONNECT_ACK", CC_CONNECT_ACKNOWLEDGE},
283 {"DISCONNECT", CC_DISCONNECT},
284 {"RELEASE", CC_RELEASE},
285 {"RELEASE_COMP", CC_RELEASE_COMPLETE},
286 {"INFORMATION", CC_INFORMATION},
287 {"PROGRESS", CC_PROGRESS},
288 {"NOTIFY", CC_NOTIFY},
289 {"SUSPEND", CC_SUSPEND},
290 {"SUSPEND_ACK", CC_SUSPEND_ACKNOWLEDGE},
291 {"SUSPEND_REJ", CC_SUSPEND_REJECT},
292 {"RESUME", CC_RESUME},
293 {"RESUME_ACK", CC_RESUME_ACKNOWLEDGE},
294 {"RESUME_REJ", CC_RESUME_REJECT},
296 {"HOLD_ACK", CC_HOLD_ACKNOWLEDGE},
297 {"HOLD_REJ", CC_HOLD_REJECT},
298 {"RETRIEVE", CC_RETRIEVE},
299 {"RETRIEVE_ACK", CC_RETRIEVE_ACKNOWLEDGE},
300 {"RETRIEVE_REJ", CC_RETRIEVE_REJECT},
301 {"FACILITY", CC_FACILITY},
302 {"STATUS", CC_STATUS},
303 {"RESTART", CC_RESTART},
304 {"RELEASE_CR", CC_RELEASE_CR},
305 {"NEW_CR", CC_NEW_CR},
306 {"DL_ESTABLISH", DL_ESTABLISH},
307 {"DL_RELEASE", DL_RELEASE},
308 {"PH_ACTIVATE", PH_ACTIVATE},
309 {"PH_DEACTIVATE", PH_DEACTIVATE},
313 static char *isdn_prim[4] = {
319 void l1l2l3_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned long prim, int direction)
322 char msgtext[64] = "<<UNKNOWN MESSAGE>>";
324 /* select message and primitive text */
326 while(isdn_message[i].name)
328 if (isdn_message[i].value == (prim&0xffffff00))
330 SCPY(msgtext, isdn_message[i].name);
335 SCAT(msgtext, isdn_prim[prim&0x00000003]);
338 if (direction && (prim&0xffffff00)!=CC_NEW_CR && (prim&0xffffff00)!=CC_RELEASE_CR)
342 if (mISDNport->ntmode)
344 if (direction == DIRECTION_OUT)
345 SCAT(msgtext, " N->U");
347 SCAT(msgtext, " N<-U");
350 if (direction == DIRECTION_OUT)
351 SCAT(msgtext, " U->N");
353 SCAT(msgtext, " U<-N");
358 /* init trace with given values */
359 start_trace(mISDNport?mISDNport->portnum:0,
360 mISDNport?mISDNport->ifport->interface:NULL,
361 port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype):NULL,
362 port?port->p_dialinginfo.id:NULL,
365 port?port->p_serial:0,
371 * send control information to the channel (dsp-module)
373 void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long handle, unsigned long c1, unsigned long c2, char *trace_name, int trace_value)
376 unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+sizeof(int)];
377 struct mISDNhead *ctrl = (struct mISDNhead *)buffer;
378 unsigned long *d = buffer+MISDN_HEADER_LEN;
381 ctrl->prim = PH_CONTROL_REQ;
385 ret = sendto(handle, buffer, MISDN_HEADER_LEN+sizeof(int)*2, 0, NULL, 0);
387 PERROR("Failed to send to socket %d\n", handle);
389 unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+sizeof(int)];
390 iframe_t *ctrl = (iframe_t *)buffer;
391 unsigned long *d = (unsigned long *)&ctrl->data.p;
393 ctrl->prim = PH_CONTROL | REQUEST;
394 ctrl->addr = handle | FLG_MSG_DOWN;
396 ctrl->len = sizeof(int)*2;
399 mISDN_write(mISDNdevice, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
401 chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
402 if (c1 == CMX_CONF_JOIN)
403 add_trace(trace_name, NULL, "0x%08x", trace_value);
405 add_trace(trace_name, NULL, "%d", trace_value);
409 void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long handle, unsigned long c1, void *c2, int c2_len, char *trace_name, int trace_value)
412 unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+c2_len];
413 struct mISDNhead *ctrl = (struct mISDNhead *)buffer;
414 unsigned long *d = buffer+MISDN_HEADER_LEN;
417 ctrl->prim = PH_CONTROL_REQ;
420 memcpy(d, c2, c2_len);
421 ret = sendto(handle, buffer, MISDN_HEADER_LEN+sizeof(int)+c2_len, 0, NULL, 0);
423 PERROR("Failed to send to socket %d\n", handle);
425 unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+c2_len];
426 iframe_t *ctrl = (iframe_t *)buffer;
427 unsigned long *d = (unsigned long *)&ctrl->data.p;
429 ctrl->prim = PH_CONTROL | REQUEST;
430 ctrl->addr = handle | FLG_MSG_DOWN;
432 ctrl->len = sizeof(int)+c2_len;
434 memcpy(d, c2, c2_len);
435 mISDN_write(mISDNdevice, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
437 chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
438 add_trace(trace_name, NULL, "%d", trace_value);
444 * subfunction for bchannel_event
447 static int _bchannel_create(struct mISDNport *mISDNport, int i)
449 unsigned char buff[1024];
452 unsigned long on = 1;
453 struct sockadd_mISDN addr;
455 if (mISDNport->b_socket[i])
457 PERROR("Error: Socket already created for index %d\n", i);
462 mISDNport->b_socket[i] = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_L2DSP);
463 if (mISDNport->b_socket[i])
465 PERROR("Error: Failed to open bchannel-socket for index %d with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", i);
469 /* set nonblocking io */
470 ret = ioctl(mISDNport->b_socket[i], FIONBIO, &on);
473 PERROR("Error: Failed to set bchannel-socket index %d into nonblocking IO\n", i);
474 close(mISDNport->b_socket[i]);
475 mISDNport->b_socket[i] = -1;
479 /* bind socket to bchannel */
480 addr.family = AF_ISDN;
481 addr.dev = mISDNport->port-1;
482 addr.channel = i+1+(i>=15);
483 ret = bind(di->bchan, (struct sockaddr *)&addr, sizeof(addr));
486 PERROR("Error: Failed to bind bchannel-socket for index %d with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", i);
487 close(mISDNport->b_socket[i]);
488 mISDNport->b_socket[i] = -1;
492 chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL create socket", DIRECTION_OUT);
493 add_trace("channel", NULL, "%d", i+1+(i>=15));
494 add_trace("socket", NULL, "%d", mISDNport->b_socket[i]);
500 if (!mISDNport->b_stid[i])
502 PERROR("Error: no stack for index %d\n", i);
505 if (mISDNport->b_addr[i])
507 PERROR("Error: stack already created for index %d\n", i);
511 /* create new layer */
512 PDEBUG(DEBUG_BCHANNEL, "creating new layer for bchannel %d (index %d).\n" , i+1+(i>=15), i);
513 memset(&li, 0, sizeof(li));
514 memset(&pid, 0, sizeof(pid));
517 li.st = mISDNport->b_stid[i];
518 UCPY(li.name, "B L4");
519 li.pid.layermask = ISDN_LAYER((4));
520 li.pid.protocol[4] = ISDN_PID_L4_B_USER;
521 ret = mISDN_new_layer(mISDNdevice, &li);
525 PERROR("mISDN_new_layer() failed to add bchannel %d (index %d)\n", i+1+(i>=15), i);
528 mISDNport->b_addr[i] = li.id;
531 goto failed_new_layer;
533 PDEBUG(DEBUG_BCHANNEL, "new layer (b_addr=0x%x)\n", mISDNport->b_addr[i]);
535 /* create new stack */
536 pid.protocol[1] = ISDN_PID_L1_B_64TRANS;
537 pid.protocol[2] = ISDN_PID_L2_B_TRANS;
538 pid.protocol[3] = ISDN_PID_L3_B_DSP;
539 pid.protocol[4] = ISDN_PID_L4_B_USER;
540 pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)) | ISDN_LAYER((4));
541 ret = mISDN_set_stack(mISDNdevice, mISDNport->b_stid[i], &pid);
545 PERROR("mISDN_set_stack() failed (ret=%d) to add bchannel (index %d) stid=0x%x\n", ret, i, mISDNport->b_stid[i]);
546 mISDN_write_frame(mISDNdevice, buff, mISDNport->b_addr[i], MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
549 ret = mISDN_get_setstack_ind(mISDNdevice, mISDNport->b_addr[i]);
554 mISDNport->b_addr[i] = mISDN_get_layerid(mISDNdevice, mISDNport->b_stid[i], 4);
555 if (!mISDNport->b_addr[i])
557 chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL create stack", DIRECTION_OUT);
558 add_trace("channel", NULL, "%d", i+1+(i>=15));
559 add_trace("stack", "id", "0x%08x", mISDNport->b_stid[i]);
560 add_trace("stack", "address", "0x%08x", mISDNport->b_addr[i]);
567 mISDNport->b_addr[i] = 0;
573 * subfunction for bchannel_event
574 * activate / deactivate request
576 static void _bchannel_activate(struct mISDNport *mISDNport, int i, int activate)
579 struct mISDNhead act;
582 act.prim = (activate)?DL_ESTABLISH_REQ:DL_RELEASE_REQ;
584 ret = sendto(mISDNport->b_socket[i], &act, MISDN_HEADER_LEN, 0, NULL, 0);
586 PERROR("Failed to send to socket %d\n", mISDNport->b_socket[i]);
590 /* activate bchannel */
591 act.prim = (activate?DL_ESTABLISH:DL_RELEASE) | REQUEST;
592 act.addr = mISDNport->b_addr[i] | FLG_MSG_DOWN;
595 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
599 chan_trace_header(mISDNport, mISDNport->b_port[i], activate?(char*)"BCHANNEL activate":(char*)"BCHANNEL deactivate", DIRECTION_OUT);
600 add_trace("channel", NULL, "%d", i+1+(i>=15));
606 * subfunction for bchannel_event
609 static void _bchannel_configure(struct mISDNport *mISDNport, int i)
615 handle = mISDNport->b_socket[i];
617 unsigned long handle;
619 handle = mISDNport->b_addr[i];
621 port = mISDNport->b_port[i];
624 PERROR("bchannel index i=%d not associated with a port object\n", i);
628 /* set dsp features */
629 if (port->p_m_txdata)
630 ph_control(mISDNport, port, handle, (port->p_m_txdata)?CMX_TXDATA_ON:CMX_TXDATA_OFF, 0, "DSP-TXDATA", port->p_m_txdata);
632 ph_control(mISDNport, port, handle, CMX_DELAY, port->p_m_delay, "DSP-DELAY", port->p_m_delay);
634 ph_control(mISDNport, port, handle, VOL_CHANGE_TX, port->p_m_txvol, "DSP-TXVOL", port->p_m_txvol);
636 ph_control(mISDNport, port, handle, VOL_CHANGE_RX, port->p_m_rxvol, "DSP-RXVOL", port->p_m_rxvol);
638 ph_control(mISDNport, port, handle, CMX_CONF_JOIN, port->p_m_conf, "DSP-CONF", port->p_m_conf);
640 ph_control(mISDNport, port, handle, CMX_ECHO_ON, 0, "DSP-ECHO", 1);
642 ph_control(mISDNport, port, handle, TONE_PATT_ON, port->p_m_tone, "DSP-TONE", port->p_m_tone);
644 ph_control(mISDNport, port, handle, CMX_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
645 // if (port->p_m_txmix)
646 // ph_control(mISDNport, port, handle, CMX_MIX_ON, 0, "DSP-MIX", 1);
648 ph_control(mISDNport, port, handle, DTMF_TONE_START, 0, "DSP-DTMF", 1);
650 ph_control_block(mISDNport, port, handle, BF_ENABLE_KEY, port->p_m_crypt_key, port->p_m_crypt_key_len, "DSP-CRYPT", port->p_m_crypt_key_len);
654 * subfunction for bchannel_event
657 static void _bchannel_destroy(struct mISDNport *mISDNport, int i)
660 chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove socket", DIRECTION_OUT);
661 add_trace("channel", NULL, "%d", i+1+(i>=15));
662 add_trace("socket", NULL, "%d", mISDNport->b_socket[i]);
664 if (mISDNport->b_socket[i] > -1)
666 close(mISDNport->b_socket[i]);
667 mISDNport->b_socket[i] = -1;
670 unsigned char buff[1024];
672 chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove stack", DIRECTION_OUT);
673 add_trace("channel", NULL, "%d", i+1+(i>=15));
674 add_trace("stack", "id", "0x%08x", mISDNport->b_stid[i]);
675 add_trace("stack", "address", "0x%08x", mISDNport->b_addr[i]);
677 /* remove our stack only if set */
678 if (mISDNport->b_addr[i])
680 PDEBUG(DEBUG_BCHANNEL, "free stack (b_addr=0x%x)\n", mISDNport->b_addr[i]);
681 mISDN_clear_stack(mISDNdevice, mISDNport->b_stid[i]);
682 mISDN_write_frame(mISDNdevice, buff, mISDNport->b_addr[i] | FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
683 mISDNport->b_addr[i] = 0;
693 A bchannel goes through the following states in this order:
696 No one is using the bchannel.
697 It is available and not linked to Port class, nor reserved.
700 The bchannel stack is created and an activation request is sent.
701 It MAY be linked to Port class, but already unlinked due to Port class removal.
704 The bchannel is active and cofigured to the Port class needs.
705 Also it is linked to a Port class, otherwhise it would be deactivated.
707 - B_STATE_DEACTIVATING
708 The bchannel is in deactivating state, due to deactivation request.
709 It may be linked to a Port class, that likes to reactivate it.
713 After deactivating bchannel, and if not used, the bchannel becomes idle again.
715 Also the bchannel may be exported, but only if the state is or becomes idle:
718 The bchannel assignment has been sent to the remove application.
721 The bchannel assignment is acknowledged by the remote application.
724 The bchannel is re-imported by mISDN port object.
728 After re-importing bchannel, and if not used, the bchannel becomes idle again.
731 A bchannel can have the following events:
734 A bchannel is required by a Port class.
735 The bchannel shall be exported to the remote application.
738 The bchannel beomes active.
741 The bchannel is not required by Port class anymore
743 - B_EVENT_DEACTIVATED
744 The bchannel becomes inactive.
747 The bchannel is now used by remote application.
750 The bchannel is not used by remote application.
752 All actions taken on these events depend on the current bchannel's state and if it is linked to a Port class.
754 if an export request is receive by remote application, p_m_remote_* is set.
755 the b_remote_*[index] indicates if and where the channel is exported to. (set from the point on, where export is initiated, until imported is acknowledged.)
756 - set on export request from remote application (if port is assigned)
757 - set on channel use, if requested by remote application (p_m_remote_*)
758 - cleared on drop request
760 the bchannel will be exported with ref and stack given. remote application uses the ref to link bchannel to the call.
761 the bchannel will be imported with stack given only. remote application must store stack id with the bchannel process.
762 the bchannel import/export is acknowledged with stack given.
764 if exporting, b_remote_*[index] is set to the remote socket id.
765 if importing has been acknowledged. b_remote_*[index] is cleared.
770 * process bchannel events
771 * - mISDNport is a pointer to the port's structure
772 * - i is the index of the bchannel
773 * - event is the B_EVENT_* value
774 * - port is the PmISDN class pointer
776 void bchannel_event(struct mISDNport *mISDNport, int i, int event)
778 class PmISDN *b_port = mISDNport->b_port[i];
779 int state = mISDNport->b_state[i];
780 unsigned long p_m_remote_ref = 0;
781 unsigned long p_m_remote_id = 0;
783 unsigned long portid = (mISDNport->portnum<<8) + i+1+(i>=15);
785 unsigned long portid = mISDNport->b_addr[i];
790 p_m_remote_id = b_port->p_m_remote_id;
791 p_m_remote_ref = b_port->p_m_remote_ref;
797 /* port must be linked in order to allow activation */
799 FATAL("bchannel must be linked to a Port class\n");
805 /* export bchannel */
806 message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid);
807 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
808 add_trace("type", NULL, "assign");
810 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
812 add_trace("socket", "id", "%d", portid);
815 state = B_STATE_EXPORTING;
816 mISDNport->b_remote_id[i] = p_m_remote_id;
817 mISDNport->b_remote_ref[i] = p_m_remote_ref;
820 /* create stack and send activation request */
821 if (_bchannel_create(mISDNport, i))
823 _bchannel_activate(mISDNport, i, 1);
824 state = B_STATE_ACTIVATING;
829 case B_STATE_ACTIVATING:
830 case B_STATE_EXPORTING:
831 /* do nothing, because it is already activating */
834 case B_STATE_DEACTIVATING:
835 case B_STATE_IMPORTING:
836 /* do nothing, because we must wait until we can reactivate */
840 /* problems that might ocurr:
841 * B_EVENT_USE is received when channel already in use.
842 * bchannel exported, but not freed by other port
844 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
848 case B_EVENT_EXPORTREQUEST:
849 /* special case where the bchannel is requested by remote */
852 PERROR("export request without remote channel set, please correct.\n");
858 /* in case, the bchannel is exported right after seize_bchannel */
859 /* export bchannel */
860 /* p_m_remote_id is set, when this event happens. */
861 message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid);
862 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
863 add_trace("type", NULL, "assign");
865 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
867 add_trace("socket", "id", "%d", portid);
870 state = B_STATE_EXPORTING;
871 mISDNport->b_remote_id[i] = p_m_remote_id;
872 mISDNport->b_remote_ref[i] = p_m_remote_ref;
875 case B_STATE_ACTIVATING:
876 case B_STATE_EXPORTING:
877 /* do nothing, because it is already activating */
880 case B_STATE_DEACTIVATING:
881 case B_STATE_IMPORTING:
882 /* do nothing, because we must wait until we can reactivate */
886 /* bchannel is active, so we deactivate */
887 _bchannel_activate(mISDNport, i, 0);
888 state = B_STATE_DEACTIVATING;
892 /* problems that might ocurr:
893 * ... when channel already in use.
894 * bchannel exported, but not freed by other port
896 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
900 case B_EVENT_ACTIVATED:
903 case B_STATE_ACTIVATING:
904 if (b_port && !p_m_remote_id)
906 /* bchannel is active and used by Port class, so we configure bchannel */
907 _bchannel_configure(mISDNport, i);
908 state = B_STATE_ACTIVE;
911 /* bchannel is active, but exported OR not used anymore (or has wrong stack config), so we deactivate */
912 _bchannel_activate(mISDNport, i, 0);
913 state = B_STATE_DEACTIVATING;
918 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
922 case B_EVENT_EXPORTED:
925 case B_STATE_EXPORTING:
926 if (b_port && p_m_remote_ref && p_m_remote_ref==mISDNport->b_remote_ref[i])
928 /* remote export done */
929 state = B_STATE_REMOTE;
932 /* bchannel is now exported, but we need bchannel back
933 * OR bchannel is not used anymore
934 * OR bchannel has been exported to an obsolete ref,
935 * so reimport, to later export to new remote */
936 message_bchannel_to_join(mISDNport->b_remote_id[i], 0, BCHANNEL_REMOVE, portid);
937 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
938 add_trace("type", NULL, "remove");
940 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
942 add_trace("socket", "id", "%d", portid);
945 state = B_STATE_IMPORTING;
950 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
956 FATAL("bchannel must be linked to a Port class\n");
960 /* bchannel is idle due to an error, so we do nothing */
963 case B_STATE_ACTIVATING:
964 case B_STATE_EXPORTING:
965 /* do nothing because we must wait until bchanenl is active before deactivating */
969 /* bchannel is active, so we deactivate */
970 _bchannel_activate(mISDNport, i, 0);
971 state = B_STATE_DEACTIVATING;
975 /* bchannel is exported, so we re-import */
976 message_bchannel_to_join(mISDNport->b_remote_id[i], 0, BCHANNEL_REMOVE, portid);
977 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
978 add_trace("type", NULL, "remove");
980 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
982 add_trace("socket", "id", "%d", portid);
985 state = B_STATE_IMPORTING;
988 case B_STATE_DEACTIVATING:
989 case B_STATE_IMPORTING:
990 /* we may have taken an already deactivating bchannel, but do not require it anymore, so we do nothing */
994 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
998 case B_EVENT_DEACTIVATED:
1002 /* ignore due to deactivation confirm after unloading */
1005 case B_STATE_DEACTIVATING:
1006 _bchannel_destroy(mISDNport, i);
1007 state = B_STATE_IDLE;
1010 /* bchannel is now deactivate, but is requied by Port class, so we reactivate / export */
1013 message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid);
1014 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
1015 add_trace("type", NULL, "assign");
1017 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
1019 add_trace("socket", "id", "%d", portid);
1022 state = B_STATE_EXPORTING;
1023 mISDNport->b_remote_id[i] = p_m_remote_id;
1024 mISDNport->b_remote_ref[i] = p_m_remote_ref;
1027 if (_bchannel_create(mISDNport, i))
1029 _bchannel_activate(mISDNport, i, 1);
1030 state = B_STATE_ACTIVATING;
1037 PERROR("Illegal event %d at state %d, please correct.\n", event, state);
1041 case B_EVENT_IMPORTED:
1044 case B_STATE_IMPORTING:
1045 state = B_STATE_IDLE;
1046 mISDNport->b_remote_id[i] = 0;
1047 mISDNport->b_remote_ref[i] = 0;
1050 /* bchannel is now imported, but is requied by Port class, so we reactivate / export */
1053 message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid);
1054 chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
1055 add_trace("type", NULL, "assign");
1057 add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
1059 add_trace("socket", "id", "%d", portid);
1062 state = B_STATE_EXPORTING;
1063 mISDNport->b_remote_id[i] = p_m_remote_id;
1064 mISDNport->b_remote_ref[i] = p_m_remote_ref;
1067 if (_bchannel_create(mISDNport, i))
1069 _bchannel_activate(mISDNport, i, 1);
1070 state = B_STATE_ACTIVATING;
1077 /* ignore, because not assigned */
1083 PERROR("Illegal event %d, please correct.\n", event);
1086 mISDNport->b_state[i] = state;
1093 * check for available channel and reserve+set it.
1094 * give channel number or SEL_CHANNEL_ANY or SEL_CHANNEL_NO
1095 * give exclusiv flag
1096 * returns -(cause value) or x = channel x or 0 = no channel
1097 * NOTE: no activation is done here
1099 int PmISDN::seize_bchannel(int channel, int exclusive)
1103 /* the channel is what we have */
1104 if (p_m_b_channel == channel)
1107 /* if channel already in use, release it */
1112 if (channel==CHANNEL_NO || channel==0)
1115 /* is channel in range ? */
1117 || (channel>p_m_mISDNport->b_num && channel<16)
1118 || ((channel-1)>p_m_mISDNport->b_num && channel>16)) /* channel-1 because channel 16 is not counted */
1119 return(-6); /* channel unacceptable */
1121 /* request exclusive channel */
1122 if (exclusive && channel>0)
1124 i = channel-1-(channel>16);
1125 if (p_m_mISDNport->b_port[i])
1126 return(-44); /* requested channel not available */
1130 /* ask for channel */
1133 i = channel-1-(channel>16);
1134 if (p_m_mISDNport->b_port[i] == NULL)
1138 /* search for channel */
1140 while(i < p_m_mISDNport->b_num)
1142 if (!p_m_mISDNport->b_port[i])
1144 channel = i+1+(i>=15);
1149 return(-34); /* no free channel */
1152 PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) seizing bchannel %d (index %d)\n", p_name, channel, i);
1155 p_m_mISDNport->b_port[i] = this;
1157 p_m_b_channel = channel;
1158 p_m_b_exclusive = exclusive;
1160 /* reserve channel */
1164 p_m_mISDNport->b_reserved++;
1171 * drop reserved channel and unset it.
1172 * deactivation is also done
1174 void PmISDN::drop_bchannel(void)
1176 /* unreserve channel */
1178 p_m_mISDNport->b_reserved--;
1182 if (p_m_b_index < 0)
1187 PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) dropping bchannel\n", p_name);
1189 if (p_m_mISDNport->b_state[p_m_b_index] != B_STATE_IDLE)
1190 bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_DROP);
1191 p_m_mISDNport->b_port[p_m_b_index] = NULL;
1194 p_m_b_exclusive = 0;
1197 /* process bchannel export/import message from join */
1198 void message_bchannel_from_join(class JoinRemote *joinremote, int type, unsigned long handle)
1200 class Endpoint *epoint;
1202 class PmISDN *isdnport;
1203 struct mISDNport *mISDNport;
1208 case BCHANNEL_REQUEST:
1209 /* find the port object for the join object ref */
1210 if (!(epoint = find_epoint_id(joinremote->j_epoint_id)))
1212 PDEBUG(DEBUG_BCHANNEL, "join %d has no endpoint (anymore)\n", joinremote->j_serial);
1215 if (!epoint->ep_portlist)
1217 PDEBUG(DEBUG_BCHANNEL, "join %d has no port (anymore in portlist)\n", joinremote->j_serial);
1220 if (epoint->ep_portlist->next)
1222 PERROR("join %d has enpoint %d with more than one port. this shall not happen to remote joins.\n", joinremote->j_serial, epoint->ep_serial);
1224 if (!(port = find_port_id(epoint->ep_portlist->port_id)))
1226 PDEBUG(DEBUG_BCHANNEL, "join %d has no port (anymore as object)\n", joinremote->j_serial);
1229 if (!((port->p_type&PORT_CLASS_MASK) != PORT_CLASS_mISDN))
1231 PERROR("join %d has port %d not of mISDN type. This shall not happen.\n", joinremote->j_serial, port->p_serial);
1233 isdnport = (class PmISDN *)port;
1236 if (isdnport->p_m_remote_id)
1238 PERROR("join %d recevied bchannel request from remote, but channel is already assinged.\n", joinremote->j_serial);
1241 mISDNport = isdnport->p_m_mISDNport;
1242 i = isdnport->p_m_b_index;
1243 chan_trace_header(mISDNport, isdnport, "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE);
1244 add_trace("type", NULL, "export request");
1245 isdnport->p_m_remote_ref = joinremote->j_serial;
1246 isdnport->p_m_remote_id = joinremote->j_remote_id;
1247 if (mISDNport && i>=0)
1249 bchannel_event(mISDNport, i, B_EVENT_EXPORTREQUEST);
1254 case BCHANNEL_ASSIGN_ACK:
1255 case BCHANNEL_REMOVE_ACK:
1256 /* find mISDNport for stack ID */
1257 mISDNport = mISDNport_first;
1261 ii = mISDNport->b_num;
1265 if (mISDNport->b_socket[i] == handle)
1267 if ((unsigned long)(mISDNport->portnum<<8)+i+1+(i>=15) == handle)
1274 mISDNport = mISDNport->next;
1278 PERROR("received assign/remove ack for handle=%x, but handle does not exist in any mISDNport structure.\n", handle);
1281 /* mISDNport may now be set or NULL */
1284 chan_trace_header(mISDNport, mISDNport->b_port[i], "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE);
1285 add_trace("type", NULL, (type==BCHANNEL_ASSIGN_ACK)?"assign_ack":"remove_ack");
1286 if (mISDNport && i>=0)
1287 bchannel_event(mISDNport, i, (type==BCHANNEL_ASSIGN_ACK)?B_EVENT_EXPORTED:B_EVENT_IMPORTED);
1291 PERROR("received wrong bchannel message type %d from remote\n", type);
1299 audio transmission procedure:
1300 -----------------------------
1303 three sources of audio transmission:
1304 - crypto-data high priority
1305 - tones high priority (also high)
1306 - remote-data low priority
1309 a variable that temporarily shows the number of samples elapsed since last transmission process.
1310 p_m_last_tv_* is used to store that last timestamp. this is used to calculate the time elapsed.
1313 a variable that is increased whenever data is transmitted.
1314 it is decreased while time elapses. it stores the number of samples that
1315 are currently loaded to dsp module.
1316 since clock in dsp module is the same clock for user space process, these
1320 there are two levels:
1321 ISDN_LOAD will give the load that have to be kept in dsp.
1322 ISDN_MAXLOAD will give the maximum load before dropping.
1324 * procedure for low priority data
1325 see txfromup() for procedure
1326 in short: remote data is ignored during high priority tones
1328 * procedure for high priority data
1329 whenever load is below ISDN_LOAD, load is filled up to ISDN_LOAD
1330 if no more data is available, load becomes empty again.
1333 0 ISDN_LOAD ISDN_MAXLOAD
1334 +--------------------+----------------------+
1336 +--------------------+----------------------+
1338 on empty load or on load below ISDN_LOAD, the load is inceased to ISDN_LOAD:
1339 0 ISDN_LOAD ISDN_MAXLOAD
1340 +--------------------+----------------------+
1341 |TTTTTTTTTTTTTTTTTTTT| |
1342 +--------------------+----------------------+
1344 on empty load, remote-audio causes the load with the remote audio to be increased to ISDN_LOAD.
1345 0 ISDN_LOAD ISDN_MAXLOAD
1346 +--------------------+----------------------+
1347 |TTTTTTTTTTTTTTTTTTTTRRRRR |
1348 +--------------------+----------------------+
1351 int PmISDN::handler(void)
1353 struct message *message;
1357 if ((ret = Port::handler()))
1361 if (p_m_last_tv_sec)
1363 elapsed = 8000 * (now_tv.tv_sec - p_m_last_tv_sec)
1364 + 8 * (now_tv.tv_usec/1000 - p_m_last_tv_msec);
1367 /* set clock of first process ever in this instance */
1368 p_m_last_tv_sec = now_tv.tv_sec;
1369 p_m_last_tv_msec = now_tv.tv_usec/1000;
1371 /* process only if we have a minimum of samples, to make packets not too small */
1372 if (elapsed >= ISDN_TRANSMIT)
1374 /* set clock of last process! */
1375 p_m_last_tv_sec = now_tv.tv_sec;
1376 p_m_last_tv_msec = now_tv.tv_usec/1000;
1379 if (elapsed < p_m_load)
1380 p_m_load -= elapsed;
1384 /* to send data, tone must be active OR crypt messages must be on */
1385 if ((p_tone_name[0] || p_m_crypt_msg_loops) && p_m_load < ISDN_LOAD)
1387 int tosend = ISDN_LOAD - p_m_load, length;
1389 unsigned char buf[MISDN_HEADER_LEN+tosend];
1390 struct mISDNhead *frm = (struct mISDNhead *)buf;
1391 unsigned long *d = buf+MISDN_HEADER_LEN;
1393 unsigned char buf[mISDN_HEADER_LEN+tosend];
1394 iframe_t *frm = (iframe_t *)buf;
1395 unsigned char *p = buf+mISDN_HEADER_LEN;
1398 /* copy crypto loops */
1399 while (p_m_crypt_msg_loops && tosend)
1401 /* how much do we have to send */
1402 length = p_m_crypt_msg_len - p_m_crypt_msg_current;
1405 if (length > tosend)
1408 /* copy message (part) to buffer */
1409 memcpy(p, p_m_crypt_msg+p_m_crypt_msg_current, length);
1412 p_m_crypt_msg_current += length;
1413 if (p_m_crypt_msg_current == p_m_crypt_msg_len)
1416 p_m_crypt_msg_current = 0;
1417 p_m_crypt_msg_loops--;
1425 if (p_tone_name[0] && tosend)
1427 tosend -= read_audio(p, tosend);
1432 frm->prim = DL_DATA_REQ;
1434 ret = sendto(handle, buffer, MISDN_HEADER_LEN+ISDN_LOAD-p_m_load-tosend, 0, NULL, 0);
1436 PERROR("Failed to send to socket %d\n", handle);
1438 frm->prim = DL_DATA | REQUEST;
1439 frm->addr = p_m_mISDNport->b_addr[p_m_b_index] | FLG_MSG_DOWN;
1441 frm->len = ISDN_LOAD - p_m_load - tosend;
1444 mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
1445 p_m_load += frm->len;
1449 // NOTE: deletion is done by the child class
1451 /* handle timeouts */
1454 if (p_m_timer+p_m_timeout < now_d)
1456 PDEBUG(DEBUG_ISDN, "(%s) timeout after %d seconds detected (state=%d).\n", p_name, p_m_timeout, p_state);
1458 /* send timeout to endpoint */
1459 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TIMEOUT);
1460 message->param.state = p_state;
1461 message_put(message);
1466 return(0); /* nothing done */
1471 * whenever we get audio data from bchannel, we process it here
1474 void PmISDN::bchannel_receive(mISDNhead *hh, unsigned char *data, int len)
1476 unsigned long cont = *((unsigned long *)data);
1478 void PmISDN::bchannel_receive(iframe_t *frm)
1481 unsigned long cont = *((unsigned long *)&frm->data.p);
1482 unsigned char *data =(unsigned char *)&frm->data.p;
1484 unsigned char *data_temp;
1485 unsigned long length_temp;
1486 struct message *message;
1491 if (hh->prim == PH_CONTROL_IND)
1493 if (frm->prim == (PH_CONTROL | INDICATION))
1498 PERROR("SHORT READ OF PH_CONTROL INDICATION\n");
1501 if ((cont&(~DTMF_TONE_MASK)) == DTMF_TONE_VAL)
1503 chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
1504 add_trace("DTMF", NULL, "%c", cont & DTMF_TONE_MASK);
1506 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_DTMF);
1507 message->param.dtmf = cont & DTMF_TONE_MASK;
1508 PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION DTMF digit '%c'\n", p_name, message->param.dtmf);
1509 message_put(message);
1515 chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
1516 add_trace("DSP-CRYPT", NULL, "error");
1518 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CRYPT);
1519 message->param.crypt.type = CC_ERROR_IND;
1520 PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION reject of blowfish.\n", p_name);
1521 message_put(message);
1525 chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
1526 add_trace("DSP-CRYPT", NULL, "ok");
1528 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CRYPT);
1529 message->param.crypt.type = CC_ACTBF_CONF;
1530 PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION accept of blowfish.\n", p_name);
1531 message_put(message);
1535 chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
1536 add_trace("unknown", NULL, "0x%x", cont);
1542 if (hh->prim == PH_SIGNAL_IND)
1544 if (frm->prim == (PH_SIGNAL | INDICATION))
1552 /* if tx is off, it may happen that fifos send us pending informations, we just ignore them */
1553 PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) ignoring tx data, because 'txdata' is turned off\n", p_name);
1556 /* see below (same condition) */
1557 if (p_state!=PORT_STATE_CONNECT
1558 && !p_m_mISDNport->tones)
1560 // printf(".");fflush(stdout);return;
1562 record(data, len, 1); // from up
1566 chan_trace_header(p_m_mISDNport, this, "BCHANNEL signal", DIRECTION_IN);
1567 add_trace("unknown", NULL, "0x%x", frm->dinfo);
1573 if (hh->prim != PH_DATA_IND && hh->prim != DL_DATA_IND)
1575 PERROR("Bchannel received unknown primitve: 0x%x\n", hh->prim);
1577 if (frm->prim != (PH_DATA | INDICATION) && frm->prim != (DL_DATA | INDICATION))
1579 PERROR("Bchannel received unknown primitve: 0x%x\n", frm->prim);
1583 /* calls will not process any audio data unless
1584 * the call is connected OR interface features audio during call setup.
1586 //printf("%d -> %d prim=%x joindata=%d tones=%d\n", p_serial, ACTIVE_EPOINT(p_epointlist), frm->prim, p_m_joindata, p_m_mISDNport->earlyb);
1587 #ifndef DEBUG_COREBRIDGE
1588 if (p_state!=PORT_STATE_CONNECT
1589 && !p_m_mISDNport->tones)
1593 /* if rx is off, it may happen that fifos send us pending informations, we just ignore them */
1596 PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) ignoring data, because rx is turned off\n", p_name);
1602 record(data, len, 0); // from down
1604 /* randomize and listen to crypt message if enabled */
1605 if (p_m_crypt_listen)
1607 /* the noisy randomizer */
1611 mISDN_rand[mISDN_rand_count & 0xff] += *p++;
1613 cryptman_listen_bch(data, len);
1618 /* send data to epoint */
1619 if (p_m_joindata && ACTIVE_EPOINT(p_epointlist)) /* only if we have an epoint object */
1625 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_DATA);
1626 message->param.data.len = (length_temp>sizeof(message->param.data.data))?sizeof(message->param.data.data):length_temp;
1627 memcpy(message->param.data.data, data_temp, message->param.data.len);
1628 message_put(message);
1629 if (length_temp <= sizeof(message->param.data.data))
1631 data_temp += sizeof(message->param.data.data);
1632 length_temp -= sizeof(message->param.data.data);
1641 void PmISDN::set_echotest(int echo)
1643 if (p_m_echo != echo)
1646 PDEBUG(DEBUG_ISDN, "we set echo to echo=%d.\n", p_m_echo);
1648 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1650 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_echo?CMX_ECHO_ON:CMX_ECHO_OFF, 0, "DSP-ECHO", p_m_echo);
1652 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_echo?CMX_ECHO_ON:CMX_ECHO_OFF, 0, "DSP-ECHO", p_m_echo);
1660 void PmISDN::set_tone(char *dir, char *tone)
1666 PDEBUG(DEBUG_ISDN, "isdn port now plays tone:'%s'.\n", tone);
1673 /* check if we NOT really have to use a dsp-tone */
1674 if (!options.dsptones)
1678 if (p_m_b_index >= 0)
1679 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1681 PDEBUG(DEBUG_ISDN, "we reset tone from id=%d to OFF.\n", p_m_tone);
1683 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], TONE_PATT_OFF, 0, "DSP-TONE", 0);
1685 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], TONE_PATT_OFF, 0, "DSP-TONE", 0);
1689 Port::set_tone(dir, tone);
1695 /* now we USE dsp-tone, convert name */
1696 else if (!strcmp(tone, "dialtone"))
1698 switch(options.dsptones) {
1699 case DSP_AMERICAN: id = TONE_AMERICAN_DIALTONE; break;
1700 case DSP_GERMAN: id = TONE_GERMAN_DIALTONE; break;
1701 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDDIALTONE; break;
1703 } else if (!strcmp(tone, "dialpbx"))
1705 switch(options.dsptones) {
1706 case DSP_AMERICAN: id = TONE_AMERICAN_DIALPBX; break;
1707 case DSP_GERMAN: id = TONE_GERMAN_DIALPBX; break;
1708 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDDIALPBX; break;
1710 } else if (!strcmp(tone, "ringing"))
1712 switch(options.dsptones) {
1713 case DSP_AMERICAN: id = TONE_AMERICAN_RINGING; break;
1714 case DSP_GERMAN: id = TONE_GERMAN_RINGING; break;
1715 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDRINGING; break;
1717 } else if (!strcmp(tone, "ringpbx"))
1719 switch(options.dsptones) {
1720 case DSP_AMERICAN: id = TONE_AMERICAN_RINGPBX; break;
1721 case DSP_GERMAN: id = TONE_GERMAN_RINGPBX; break;
1722 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDRINGPBX; break;
1724 } else if (!strcmp(tone, "busy"))
1727 switch(options.dsptones) {
1728 case DSP_AMERICAN: id = TONE_AMERICAN_BUSY; break;
1729 case DSP_GERMAN: id = TONE_GERMAN_BUSY; break;
1730 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDBUSY; break;
1732 } else if (!strcmp(tone, "release"))
1735 switch(options.dsptones) {
1736 case DSP_AMERICAN: id = TONE_AMERICAN_HANGUP; break;
1737 case DSP_GERMAN: id = TONE_GERMAN_HANGUP; break;
1738 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDHANGUP; break;
1740 } else if (!strcmp(tone, "cause_10"))
1742 else if (!strcmp(tone, "cause_11"))
1744 else if (!strcmp(tone, "cause_22"))
1746 switch(options.dsptones) {
1747 case DSP_AMERICAN: id = TONE_SPECIAL_INFO; break;
1748 case DSP_GERMAN: id = TONE_GERMAN_GASSENBESETZT; break;
1749 case DSP_OLDGERMAN: id = TONE_GERMAN_OLDBUSY; break;
1751 } else if (!strncmp(tone, "cause_", 6))
1752 id = TONE_SPECIAL_INFO;
1756 /* if we have a tone that is not supported by dsp */
1757 if (id==TONE_OFF && tone[0])
1765 PDEBUG(DEBUG_ISDN, "we set tone to id=%d.\n", p_m_tone);
1766 if (p_m_b_index >= 0)
1767 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1769 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_tone?TONE_PATT_ON:TONE_PATT_OFF, p_m_tone, "DSP-TONE", p_m_tone);
1771 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_tone?TONE_PATT_ON:TONE_PATT_OFF, p_m_tone, "DSP-TONE", p_m_tone);
1774 /* turn user-space tones off in cases of no tone OR dsp tone */
1775 Port::set_tone("",NULL);
1779 /* MESSAGE_mISDNSIGNAL */
1780 //extern struct message *dddebug;
1781 void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union parameter *param)
1783 switch(param->mISDNsignal.message)
1785 case mISDNSIGNAL_VOLUME:
1786 if (p_m_txvol != param->mISDNsignal.txvol)
1788 p_m_txvol = param->mISDNsignal.txvol;
1789 PDEBUG(DEBUG_BCHANNEL, "we change tx-volume to shift=%d.\n", p_m_txvol);
1790 if (p_m_b_index >= 0)
1791 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1793 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], VOL_CHANGE_TX, p_m_txvol, "DSP-TXVOL", p_m_txvol);
1795 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], VOL_CHANGE_TX, p_m_txvol, "DSP-TXVOL", p_m_txvol);
1798 PDEBUG(DEBUG_BCHANNEL, "we already have tx-volume shift=%d.\n", p_m_rxvol);
1799 if (p_m_rxvol != param->mISDNsignal.rxvol)
1801 p_m_rxvol = param->mISDNsignal.rxvol;
1802 PDEBUG(DEBUG_BCHANNEL, "we change rx-volume to shift=%d.\n", p_m_rxvol);
1803 if (p_m_b_index >= 0)
1804 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1806 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], VOL_CHANGE_RX, p_m_rxvol, "DSP-RXVOL", p_m_rxvol);
1808 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], VOL_CHANGE_RX, p_m_rxvol, "DSP-RXVOL", p_m_rxvol);
1811 PDEBUG(DEBUG_BCHANNEL, "we already have rx-volume shift=%d.\n", p_m_rxvol);
1814 case mISDNSIGNAL_CONF:
1815 //if (dddebug) PDEBUG(DEBUG_ISDN, "dddebug = %d\n", dddebug->type);
1816 //tone if (!p_m_tone && p_m_conf!=param->mISDNsignal.conf)
1817 if (p_m_conf != param->mISDNsignal.conf)
1819 p_m_conf = param->mISDNsignal.conf;
1820 PDEBUG(DEBUG_BCHANNEL, "we change conference to conf=%d.\n", p_m_conf);
1821 if (p_m_b_index >= 0)
1822 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1824 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], (p_m_conf)?CMX_CONF_JOIN:CMX_CONF_SPLIT, p_m_conf, "DSP-CONF", p_m_conf);
1826 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], (p_m_conf)?CMX_CONF_JOIN:CMX_CONF_SPLIT, p_m_conf, "DSP-CONF", p_m_conf);
1829 PDEBUG(DEBUG_BCHANNEL, "we already have conf=%d.\n", p_m_conf);
1830 /* we must set, even if currently tone forbids conf */
1831 p_m_conf = param->mISDNsignal.conf;
1832 //if (dddebug) PDEBUG(DEBUG_ISDN, "dddebug = %d\n", dddebug->type);
1835 case mISDNSIGNAL_JOINDATA:
1836 if (p_m_joindata != param->mISDNsignal.joindata)
1838 p_m_joindata = param->mISDNsignal.joindata;
1839 PDEBUG(DEBUG_BCHANNEL, "we change to joindata=%d.\n", p_m_joindata);
1841 PDEBUG(DEBUG_BCHANNEL, "we already have joindata=%d.\n", p_m_joindata);
1844 case mISDNSIGNAL_DELAY:
1845 if (p_m_delay != param->mISDNsignal.delay)
1847 p_m_delay = param->mISDNsignal.delay;
1848 PDEBUG(DEBUG_BCHANNEL, "we change delay mode to delay=%d.\n", p_m_delay);
1849 if (p_m_b_index >= 0)
1850 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1852 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_delay?CMX_DELAY:CMX_JITTER, p_m_delay, "DSP-DELAY", p_m_delay);
1854 ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_delay?CMX_DELAY:CMX_JITTER, p_m_delay, "DSP-DELAY", p_m_delay);
1857 PDEBUG(DEBUG_BCHANNEL, "we already have delay=%d.\n", p_m_delay);
1861 PERROR("PmISDN(%s) unsupported signal message %d.\n", p_name, param->mISDNsignal.message);
1866 void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parameter *param)
1868 struct message *message;
1870 switch(param->crypt.type)
1872 case CC_ACTBF_REQ: /* activate blowfish */
1874 p_m_crypt_key_len = param->crypt.len;
1875 if (p_m_crypt_key_len > (int)sizeof(p_m_crypt_key))
1877 PERROR("PmISDN(%s) key too long %d > %d\n", p_name, p_m_crypt_key_len, sizeof(p_m_crypt_key));
1878 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CRYPT);
1879 message->param.crypt.type = CC_ERROR_IND;
1880 message_put(message);
1883 memcpy(p_m_crypt_key, param->crypt.data, p_m_crypt_key_len);
1885 PDEBUG(DEBUG_BCHANNEL, "we set encryption to crypt=%d. (0 means OFF)\n", p_m_crypt);
1886 if (p_m_b_index >= 0)
1887 if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
1889 ph_control_block(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_crypt?BF_ENABLE_KEY:BF_DISABLE, p_m_crypt_key, p_m_crypt_key_len, "DSP-CRYPT", p_m_crypt_key_len);
1891 ph_control_block(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_crypt?BF_ENABLE_KEY:BF_DISABLE, p_m_crypt_key, p_m_crypt_key_len, "DSP-CRYPT", p_m_crypt_key_len);
1895 case CC_DACT_REQ: /* deactivate session encryption */
1900 case CR_LISTEN_REQ: /* start listening to messages */
1901 p_m_crypt_listen = 1;
1902 p_m_crypt_listen_state = 0;
1905 case CR_UNLISTEN_REQ: /* stop listening to messages */
1906 p_m_crypt_listen = 0;
1909 case CR_MESSAGE_REQ: /* send message */
1910 p_m_crypt_msg_len = cryptman_encode_bch(param->crypt.data, param->crypt.len, p_m_crypt_msg, sizeof(p_m_crypt_msg));
1911 if (!p_m_crypt_msg_len)
1913 PERROR("PmISDN(%s) message too long %d > %d\n", p_name, param->crypt.len-1, sizeof(p_m_crypt_msg));
1916 p_m_crypt_msg_current = 0; /* reset */
1917 p_m_crypt_msg_loops = 3; /* enable */
1919 /* disable txmix, or we get corrupt data due to audio process */
1920 if (p_m_txmix && p_m_b_index>=0)
1922 PDEBUG(DEBUG_BCHANNEL, "for sending CR_MESSAGE_REQ, we reset txmix from txmix=%d.\n", p_m_txmix);
1924 ph_control(p_m_mISDNport, this, p_mISDNport->b_socket[p_m_b_index], CMX_MIX_OFF, 0, "DSP-TXMIX", 0);
1926 ph_control(p_m_mISDNport, this, p_mISDNport->b_addr[p_m_b_index], CMX_MIX_OFF, 0, "DSP-TXMIX", 0);
1933 PERROR("PmISDN(%s) unknown crypt message %d\n", p_name, param->crypt.type);
1939 * endpoint sends messages to the port
1941 int PmISDN::message_epoint(unsigned long epoint_id, int message_id, union parameter *param)
1943 if (Port::message_epoint(epoint_id, message_id, param))
1948 case MESSAGE_DATA: /* tx-data from upper layer */
1949 txfromup(param->data.data, param->data.len);
1952 case MESSAGE_mISDNSIGNAL: /* user command */
1953 PDEBUG(DEBUG_ISDN, "PmISDN(%s) received special ISDN SIGNAL %d.\n", p_name, param->mISDNsignal.message);
1954 message_mISDNsignal(epoint_id, message_id, param);
1957 case MESSAGE_CRYPT: /* crypt control command */
1958 PDEBUG(DEBUG_ISDN, "PmISDN(%s) received encryption command '%d'.\n", p_name, param->crypt.type);
1959 message_crypt(epoint_id, message_id, param);
1968 * main loop for processing messages from mISDN
1971 int mISDN_handler(void)
1974 struct mISDNport *mISDNport;
1975 class PmISDN *isdnport;
1977 char buffer[2048+MISDN_HEADER_LEN];
1978 struct mISDNhead *hh = (struct mISDNhead *)buffer;
1980 /* process all ports */
1981 mISDNport = mISDNport_first;
1984 /* process all bchannels */
1986 while(i < mISDNport->b_num)
1988 /* handle port of bchannel */
1989 isdnport=mISDNport->b_port[i];
1992 /* call bridges in user space OR crypto OR recording */
1993 if (isdnport->p_m_joindata || isdnport->p_m_crypt_msg_loops || isdnport->p_m_crypt_listen || isdnport->p_record)
1995 /* rx IS required */
1996 if (isdnport->p_m_rxoff)
1999 isdnport->p_m_rxoff = 0;
2000 PDEBUG(DEBUG_BCHANNEL, "%s: receive data is required, so we turn them on\n");
2001 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2002 ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], CMX_RECEIVE_ON, 0, "DSP-RXOFF", 0);
2007 /* rx NOT required */
2008 if (!isdnport->p_m_rxoff)
2011 isdnport->p_m_rxoff = 1;
2012 PDEBUG(DEBUG_BCHANNEL, "%s: receive data is not required, so we turn them off\n");
2013 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2014 ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], CMX_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
2019 if (isdnport->p_record)
2021 /* txdata IS required */
2022 if (!isdnport->p_m_txdata)
2025 isdnport->p_m_txdata = 1;
2026 PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is required, so we turn them on\n");
2027 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2028 ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], CMX_TXDATA_ON, 0, "DSP-TXDATA", 1);
2033 /* txdata NOT required */
2034 if (isdnport->p_m_txdata)
2037 isdnport->p_m_txdata = 0;
2038 PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is not required, so we turn them off\n");
2039 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2040 ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], CMX_TXDATA_OFF, 0, "DSP-TXDATA", 0);
2046 /* handle message from bchannel */
2047 if (mISDNport->b_stack[i] > -1)
2049 ret = recv(mISDNport->b_stack[i], buffer, sizeof(buffer), 0);
2050 if (ret >= MISDN_HEADER_LEN)
2054 /* we don't care about confirms, we use rx data to sync tx */
2059 /* we receive audio data, we respond to it AND we send tones */
2062 case PH_CONTROL_IND:
2063 if (mISDNport->b_port[i])
2064 mISDNport->b_port[i]->bchannel_receive(hh, buffer+MISDN_HEADER_LEN, ret-MISDN_HEADER_LEN);
2066 PDEBUG(DEBUG_BCHANNEL, "b-channel is not associated to an ISDNPort (socket %d), ignoring.\n", mISDNport->b_stack[i]);
2069 case PH_ACTIVATE_IND:
2070 case DL_ESTABLISH_IND:
2071 case PH_ACTIVATE_CONF:
2072 case DL_ESTABLISH_CONF:
2073 PDEBUG(DEBUG_BCHANNEL, "DL_ESTABLISH confirm: bchannel is now activated (socket %d).\n", mISDNport->b_socket[i]);
2074 bchannel_event(mISDNport, i, B_EVENT_ACTIVATED);
2077 case PH_DEACTIVATE_IND:
2078 case DL_RELEASE_IND:
2079 case PH_DEACTIVATE_CONF:
2080 case DL_RELEASE_CONF:
2081 PDEBUG(DEBUG_BCHANNEL, "DL_RELEASE confirm: bchannel is now de-activated (socket %d).\n", mISDNport->b_socket[i]);
2082 bchannel_event(mISDNport, i, B_EVENT_DEACTIVATED);
2086 PERROR("child message not handled: prim(0x%x) socket(%d) msg->len(%d)\n", hh->prim, mISDNport->b_socket[i], msg->len);
2090 if (ret < 0 && errno != EWOULDBLOCK)
2091 PERROR("Read from port %d, index %d failed with return code %d\n", mISDNport->portnum, i, ret);
2098 if (mISDNport->l1timeout && now>mISDNport->l1timeout)
2100 PDEBUG(DEBUG_ISDN, "the L1 establish timer expired, we release all pending messages.\n", mISDNport->portnum);
2101 mISDNport->l1timeout = 0;
2104 /* layer 2 establish timer */
2105 if (mISDNport->l2establish)
2107 if (now-mISDNport->l2establish > 5)
2110 PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link portnum=%d.\n", mISDNport->portnum);
2111 mISDNport->ml3->to_layer2(mISDNport->ml3, DL_ESTABLISH_REQ);
2112 l1l2l3_trace_header(mISDNport, NULL, DL_ESTABLISH_REQ, DIRECTION_OUT);
2119 mISDNport = mISDNport->next;
2124 int mISDN_handler(void)
2127 struct mISDNport *mISDNport;
2128 class PmISDN *isdnport;
2133 mISDNuser_head_t *hh;
2136 /* the que avoids loopbacks when replying to stack after receiving
2138 mISDNport = mISDNport_first;
2141 /* process turning on/off rx */
2143 while(i < mISDNport->b_num)
2145 isdnport=mISDNport->b_port[i];
2148 /* call bridges in user space OR crypto OR recording */
2149 if (isdnport->p_m_joindata || isdnport->p_m_crypt_msg_loops || isdnport->p_m_crypt_listen || isdnport->p_record)
2151 /* rx IS required */
2152 if (isdnport->p_m_rxoff)
2155 isdnport->p_m_rxoff = 0;
2156 PDEBUG(DEBUG_BCHANNEL, "%s: receive data is required, so we turn them on\n");
2157 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2158 ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_RECEIVE_ON, 0, "DSP-RXOFF", 0);
2163 /* rx NOT required */
2164 if (!isdnport->p_m_rxoff)
2167 isdnport->p_m_rxoff = 1;
2168 PDEBUG(DEBUG_BCHANNEL, "%s: receive data is not required, so we turn them off\n");
2169 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2170 ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
2175 if (isdnport->p_record)
2177 /* txdata IS required */
2178 if (!isdnport->p_m_txdata)
2181 isdnport->p_m_txdata = 1;
2182 PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is required, so we turn them on\n");
2183 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2184 ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_TXDATA_ON, 0, "DSP-TXDATA", 1);
2189 /* txdata NOT required */
2190 if (isdnport->p_m_txdata)
2193 isdnport->p_m_txdata = 0;
2194 PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is not required, so we turn them off\n");
2195 if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
2196 ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_TXDATA_OFF, 0, "DSP-TXDATA", 0);
2204 if (mISDNport->l1timeout && now>mISDNport->l1timeout)
2206 PDEBUG(DEBUG_ISDN, "the L1 establish timer expired, we release all pending messages.\n", mISDNport->portnum);
2207 mISDNport->l1timeout = 0;
2210 if (mISDNport->l2establish)
2212 if (now-mISDNport->l2establish > 5)
2214 if (mISDNport->ntmode)
2216 PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link NT portnum=%d.\n", mISDNport->portnum);
2217 time(&mISDNport->l2establish);
2219 dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0);
2220 if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
2225 PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link TE portnum=%d.\n", mISDNport->portnum);
2226 time(&mISDNport->l2establish);
2228 act.prim = DL_ESTABLISH | REQUEST;
2229 act.addr = (mISDNport->upper_id & ~LAYER_ID_MASK) | 3 | FLG_MSG_DOWN;
2232 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
2234 l1l2l3_trace_header(mISDNport, NULL, DL_ESTABLISH | REQUEST, DIRECTION_OUT);
2239 if ((dmsg = msg_dequeue(&mISDNport->downqueue)))
2241 if (mISDNport->ntmode)
2243 hh = (mISDNuser_head_t *)dmsg->data;
2244 PDEBUG(DEBUG_ISDN, "sending queued NT l3-down-message: prim(0x%x) dinfo(0x%x) msg->len(%d)\n", hh->prim, hh->dinfo, dmsg->len);
2245 if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
2249 frm = (iframe_t *)dmsg->data;
2250 frm->addr = mISDNport->upper_id | FLG_MSG_DOWN;
2251 frm->len = (dmsg->len) - mISDN_HEADER_LEN;
2252 PDEBUG(DEBUG_ISDN, "sending queued TE l3-down-message: prim(0x%x) dinfo(0x%x) msg->len(%d)\n", frm->prim, frm->dinfo, dmsg->len);
2253 mISDN_write(mISDNdevice, dmsg->data, dmsg->len, TIMEOUT_1SEC);
2258 mISDNport = mISDNport->next;
2261 /* no device, no read */
2262 if (mISDNdevice < 0)
2265 /* get message from kernel */
2266 if (!(msg = alloc_msg(MAX_MSG_SIZE)))
2268 ret = mISDN_read(mISDNdevice, msg->data, MAX_MSG_SIZE, 0);
2272 if (errno == EAGAIN)
2274 FATAL("Failed to do mISDN_read()\n");
2279 // printf("%s: ERROR: mISDN_read() returns nothing\n");
2283 frm = (iframe_t *)msg->data;
2288 case MGR_DELLAYER | CONFIRM:
2289 case MGR_INITTIMER | CONFIRM:
2290 case MGR_ADDTIMER | CONFIRM:
2291 case MGR_DELTIMER | CONFIRM:
2292 case MGR_REMOVETIMER | CONFIRM:
2297 /* handle timer events from mISDN for NT-stack
2298 * note: they do not associate with a stack */
2299 if (frm->prim == (MGR_TIMER | INDICATION))
2303 /* find mISDNport */
2304 mISDNport = mISDNport_first;
2308 if (mISDNport->ntmode)
2310 it = mISDNport->nst.tlist;
2314 if (it->id == (int)frm->addr)
2321 mISDNport = mISDNport->next;
2325 mISDN_write_frame(mISDNdevice, msg->data, mISDNport->upper_id | FLG_MSG_DOWN,
2326 MGR_TIMER | RESPONSE, 0, 0, NULL, TIMEOUT_1SEC);
2328 PDEBUG(DEBUG_ISDN, "timer-indication port %d it=%p\n", mISDNport->portnum, it);
2329 test_and_clear_bit(FLG_TIMER_RUNING, (long unsigned int *)&it->Flags);
2330 ret = it->function(it->data);
2333 PDEBUG(DEBUG_ISDN, "timer-indication not handled\n");
2338 /* find the mISDNport that belongs to the stack */
2339 mISDNport = mISDNport_first;
2342 if ((frm->addr&MASTER_ID_MASK) == (unsigned int)(mISDNport->upper_id&MASTER_ID_MASK))
2344 mISDNport = mISDNport->next;
2348 PERROR("message belongs to no mISDNport: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len);
2353 if (!(frm->addr&FLG_CHILD_STACK))
2358 case MGR_SHORTSTATUS | INDICATION:
2359 case MGR_SHORTSTATUS | CONFIRM:
2360 switch(frm->dinfo) {
2361 case SSTATUS_L1_ACTIVATED:
2362 l1l2l3_trace_header(mISDNport, NULL, PH_ACTIVATE | (frm->prim & 0x3), DIRECTION_IN);
2365 case SSTATUS_L1_DEACTIVATED:
2366 l1l2l3_trace_header(mISDNport, NULL, PH_DEACTIVATE | (frm->prim & 0x3), DIRECTION_IN);
2369 case SSTATUS_L2_ESTABLISHED:
2370 l1l2l3_trace_header(mISDNport, NULL, DL_ESTABLISH | (frm->prim & 0x3), DIRECTION_IN);
2373 case SSTATUS_L2_RELEASED:
2374 l1l2l3_trace_header(mISDNport, NULL, DL_RELEASE | (frm->prim & 0x3), DIRECTION_IN);
2380 case PH_ACTIVATE | CONFIRM:
2381 case PH_ACTIVATE | INDICATION:
2382 l1l2l3_trace_header(mISDNport, NULL, frm->prim, DIRECTION_IN);
2384 if (mISDNport->ntmode)
2386 mISDNport->l1link = 1;
2387 setup_queue(mISDNport, 1);
2391 mISDNport->l1link = 1;
2392 setup_queue(mISDNport, 1);
2395 case PH_DEACTIVATE | CONFIRM:
2396 case PH_DEACTIVATE | INDICATION:
2397 l1l2l3_trace_header(mISDNport, NULL, frm->prim, DIRECTION_IN);
2399 if (mISDNport->ntmode)
2401 mISDNport->l1link = 0;
2402 setup_queue(mISDNport, 0);
2406 mISDNport->l1link = 0;
2407 setup_queue(mISDNport, 0);
2410 case PH_CONTROL | CONFIRM:
2411 case PH_CONTROL | INDICATION:
2412 PDEBUG(DEBUG_ISDN, "Received PH_CONTROL for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name);
2415 case DL_ESTABLISH | INDICATION:
2416 case DL_ESTABLISH | CONFIRM:
2417 l1l2l3_trace_header(mISDNport, NULL, frm->prim, DIRECTION_IN);
2419 if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */
2421 if (mISDNport->l2establish)
2423 mISDNport->l2establish = 0;
2424 PDEBUG(DEBUG_ISDN, "the link became active before l2establish timer expiry.\n");
2426 mISDNport->l2link = 1;
2429 case DL_RELEASE | INDICATION:
2430 case DL_RELEASE | CONFIRM:
2431 l1l2l3_trace_header(mISDNport, NULL, frm->prim, DIRECTION_IN);
2433 if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */
2435 mISDNport->l2link = 0;
2438 time(&mISDNport->l2establish);
2439 PDEBUG(DEBUG_ISDN, "because we are ptp, we set a l2establish timer.\n");
2445 PDEBUG(DEBUG_STACK, "GOT d-msg from %s port %d prim 0x%x dinfo 0x%x addr 0x%x\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, frm->prim, frm->dinfo, frm->addr);
2446 if (frm->dinfo==(signed long)0xffffffff && frm->prim==(PH_DATA|CONFIRM))
2448 PERROR("SERIOUS BUG, dinfo == 0xffffffff, prim == PH_DATA | CONFIRM !!!!\n");
2451 if (mISDNport->ntmode)
2453 /* l1-data enters the nt-mode library */
2454 nst = &mISDNport->nst;
2455 if (nst->l1_l2(nst, msg))
2460 /* l3-data is sent to pbx */
2461 if (stack2manager_te(mISDNport, msg))
2472 /* we don't care about confirms, we use rx data to sync tx */
2473 case PH_DATA | CONFIRM:
2474 case DL_DATA | CONFIRM:
2477 /* we receive audio data, we respond to it AND we send tones */
2478 case PH_DATA | INDICATION:
2479 case DL_DATA | INDICATION:
2480 case PH_CONTROL | INDICATION:
2481 case PH_SIGNAL | INDICATION:
2483 while(i < mISDNport->b_num)
2485 if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
2489 if (i == mISDNport->b_num)
2491 PERROR("unhandled b-message (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
2494 if (mISDNport->b_port[i])
2496 //PERROR("port sech: %s data\n", mISDNport->b_port[i]->p_name);
2497 mISDNport->b_port[i]->bchannel_receive(frm);
2499 PDEBUG(DEBUG_BCHANNEL, "b-channel is not associated to an ISDNPort (address 0x%x), ignoring.\n", frm->addr);
2502 case PH_ACTIVATE | INDICATION:
2503 case DL_ESTABLISH | INDICATION:
2504 case PH_ACTIVATE | CONFIRM:
2505 case DL_ESTABLISH | CONFIRM:
2506 PDEBUG(DEBUG_BCHANNEL, "DL_ESTABLISH confirm: bchannel is now activated (address 0x%x).\n", frm->addr);
2508 while(i < mISDNport->b_num)
2510 if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
2514 if (i == mISDNport->b_num)
2516 PERROR("unhandled b-establish (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
2519 bchannel_event(mISDNport, i, B_EVENT_ACTIVATED);
2522 case PH_DEACTIVATE | INDICATION:
2523 case DL_RELEASE | INDICATION:
2524 case PH_DEACTIVATE | CONFIRM:
2525 case DL_RELEASE | CONFIRM:
2526 PDEBUG(DEBUG_BCHANNEL, "DL_RELEASE confirm: bchannel is now de-activated (address 0x%x).\n", frm->addr);
2528 while(i < mISDNport->b_num)
2530 if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
2534 if (i == mISDNport->b_num)
2536 PERROR("unhandled b-release (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
2539 bchannel_event(mISDNport, i, B_EVENT_DEACTIVATED);
2543 PERROR("child message not handled: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len);
2554 int do_layer3(struct mlayer3 *ml3, unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
2556 struct mISDNport *mISDNport = ml3->private;
2558 if (cmd == MT_ASSIGN)
2564 achtung MT_ASSIGN kommt hier an
2570 case MGR_SHORTSTATUS_IND:
2571 case MGR_SHORTSTATUS_CONF:
2572 switch(frm->dinfo) {
2573 case SSTATUS_L1_ACTIVATED:
2574 l1l2l3_trace_header(mISDNport, NULL, PH_ACTIVATE_IND, DIRECTION_IN);
2577 case SSTATUS_L1_DEACTIVATED:
2578 l1l2l3_trace_header(mISDNport, NULL, PH_DEACTIVATE_IND, DIRECTION_IN);
2581 case SSTATUS_L2_ESTABLISHED:
2582 l1l2l3_trace_header(mISDNport, NULL, DL_ESTABLISH_IND, DIRECTION_IN);
2585 case SSTATUS_L2_RELEASED:
2586 l1l2l3_trace_header(mISDNport, NULL, DL_RELEASE_IND, DIRECTION_IN);
2592 case PH_ACTIVATE_CONF:
2593 case PH_ACTIVATE_IND:
2594 l1l2l3_trace_header(mISDNport, NULL, cmd, DIRECTION_IN);
2597 mISDNport->l1link = 1;
2599 if (mISDNport->ntmode)
2600 setup_queue(mISDNport, 1);
2604 case PH_DEACTIVATE | CONFIRM:
2605 case PH_DEACTIVATE | INDICATION:
2606 l1l2l3_trace_header(mISDNport, NULL, cmd, DIRECTION_IN);
2609 mISDNport->l1link = 0;
2610 raus mit der setup-queue, da dies im stack geschieht
2612 if (mISDNport->ntmode)
2613 setup_queue(mISDNport, 0);
2617 case PH_CONTROL_CONFIRM:
2618 case PH_CONTROL_INDICATION:
2619 PDEBUG(DEBUG_ISDN, "Received PH_CONTROL for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name);
2622 case DL_ESTABLISH_IND:
2623 case DL_ESTABLISH_CONF:
2624 l1l2l3_trace_header(mISDNport, NULL, cmd, DIRECTION_IN);
2626 if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */
2628 if (mISDNport->l2establish)
2630 mISDNport->l2establish = 0;
2631 PDEBUG(DEBUG_ISDN, "the link became active before l2establish timer expiry.\n");
2633 mISDNport->l2link = 1;
2636 case DL_RELEASE_IND:
2637 case DL_RELEASE_CONF:
2638 l1l2l3_trace_header(mISDNport, NULL, cmd, DIRECTION_IN);
2641 mISDNport->l2link = 0;
2644 time(&mISDNport->l2establish);
2645 PDEBUG(DEBUG_ISDN, "because we are ptp, we set a l2establish timer.\n");
2650 /* l3-data is sent to LCR */
2651 message_from_mlayer3(mISDNport, cmd, pid, l3m);
2667 * global function to add a new card (port)
2669 struct mISDNport *mISDNport_open(int port, int ptp, int ptmp, int force_nt, struct interface *interface)
2672 unsigned char buff[1025];
2673 iframe_t *frm = (iframe_t *)buff;
2674 struct mISDNport *mISDNport, **mISDNportp;
2676 int pri, bri, ports;
2679 struct mlayer3 *ml3;
2680 struct mISDN_devinfo devinfo;
2682 ret = ioctl(mISDNsocket, IMGETCOUNT, &cnt);
2685 fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
2689 // interface_info_t ii;
2693 stack_info_t *stinf;
2695 /* query port's requirements */
2696 cnt = mISDN_get_stack_count(mISDNdevice);
2701 PERROR_RUNTIME("Found no card. Please be sure to load card drivers.\n");
2704 if (port>cnt || port<1)
2706 PERROR_RUNTIME("Port (%d) given at 'ports' (options.conf) is out of existing port range (%d-%d)\n", port, 1, cnt);
2710 pri = bri = ports = nt = te = 0;
2712 devinfo.id = port - 1;
2713 ret = ioctl(socket, IMGETDEVINFO, &devinfo);
2716 PERROR_RUNTIME("Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", i, ret);
2719 /* output the port info */
2720 if (devinfo.Dprotocols & (1 << ISDN_P_TE_S0))
2725 if (devinfo.Dprotocols & (1 << ISDN_P_NT_S0))
2731 if (devinfo.Dprotocols & (1 << ISDN_P_TE_E1))
2738 if (devinfo.Dprotocols & (1 << ISDN_P_NT_E1))
2745 if (devinfo.Dprotocols & (1 << ISDN_P_FXS))
2752 if (devinfo.Dprotocols & (1 << ISDN_P_FXO))
2758 if (force_nt && !nt)
2760 PERROR_RUNTIME("Port %d does not support NT-mode.\n", port);
2765 PERROR_RUNTIME("Port %d supports BRI and PRI?? What kind of controller is that?. (Can't use this!)\n", port);
2768 if (pots && !bri && !pri)
2770 PERROR_RUNTIME("Port %d supports POTS, LCR does not!\n", port);
2775 PERROR_RUNTIME("Port %d does not support BRI nor PRI!\n", port);
2780 PERROR_RUNTIME("Port %d does not support NT-mode nor TE-mode!\n", port);
2783 /* force nt, by turning off TE */
2786 /* if TE an NT is supported (and not forced to NT), turn off NT */
2790 ret = mISDN_get_stack_info(mISDNdevice, port, buff, sizeof(buff));
2793 PERROR_RUNTIME("Cannot get stack info for port %d (ret=%d)\n", port, ret);
2796 stinf = (stack_info_t *)&frm->data.p;
2797 switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK)
2799 case ISDN_PID_L0_TE_S0:
2800 PDEBUG(DEBUG_ISDN, "TE-mode BRI S/T interface line\n");
2802 case ISDN_PID_L0_NT_S0:
2803 PDEBUG(DEBUG_ISDN, "NT-mode BRI S/T interface port\n");
2806 case ISDN_PID_L0_TE_E1:
2807 PDEBUG(DEBUG_ISDN, "TE-mode PRI E1 interface line\n");
2810 case ISDN_PID_L0_NT_E1:
2811 PDEBUG(DEBUG_ISDN, "LT-mode PRI E1 interface port\n");
2816 PERROR_RUNTIME("unknown port(%d) type 0x%08x\n", port, stinf->pid.protocol[0]);
2822 if (stinf->pid.protocol[1] == 0)
2824 PERROR_RUNTIME("Given port %d: Missing layer 1 NT-mode protocol.\n", port);
2827 if (stinf->pid.protocol[2])
2829 PERROR_RUNTIME("Given port %d: Layer 2 protocol 0x%08x is detected, but not allowed for NT lib.\n", port, stinf->pid.protocol[2]);
2836 if (stinf->pid.protocol[1] == 0)
2838 PERROR_RUNTIME("Given port %d: Missing layer 1 protocol.\n", port);
2841 if (stinf->pid.protocol[2] == 0)
2843 PERROR_RUNTIME("Given port %d: Missing layer 2 protocol.\n", port);
2846 if (stinf->pid.protocol[3] == 0)
2848 PERROR_RUNTIME("Given port %d: Missing layer 3 protocol.\n", port);
2852 switch(stinf->pid.protocol[3] & ~ISDN_PID_FEATURE_MASK)
2854 case ISDN_PID_L3_DSS1USER:
2858 PERROR_RUNTIME("Given port %d: own protocol 0x%08x", port,stinf->pid.protocol[3]);
2862 if (stinf->pid.protocol[4])
2864 PERROR_RUNTIME("Given port %d: Layer 4 protocol not allowed.\n", port);
2870 /* add mISDNport structure */
2871 mISDNportp = &mISDNport_first;
2873 mISDNportp = &((*mISDNportp)->next);
2874 mISDNport = (struct mISDNport *)MALLOC(sizeof(struct mISDNport));
2876 *mISDNportp = mISDNport;
2878 /* allocate ressources of port */
2881 protocol = (nt)?L3_PROTOCOL_DSS1_USER:L3_PROTOCOL_DSS1_NETWORK;
2886 prop |= FLG_FORCE_PTMP;
2887 mISDNport->ml3 = open_layer3(port-1, protocol, prop , do_dchannel, mISDNport);
2888 if (!mISDNport->ml3)
2890 PERROR_RUNTIME("Cannot get layer(%d) id of port %d\n", nt?2:4, port);
2895 /* if ntmode, establish L1 to send the tei removal during start */
2896 if (mISDNport->ntmode)
2900 act.prim = PH_ACTIVATE | REQUEST;
2901 act.addr = mISDNport->upper_id | FLG_MSG_DOWN;
2902 printf("UPPER ID 0x%x, addr 0x%x\n",mISDNport->upper_id, act.addr);
2905 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
2906 usleep(10000); /* to be sure, that l1 is up */
2910 SCPY(mISDNport->name, devinfo.name);
2911 mISDNport->b_num = devinfo.nrbchan;
2913 msg_queue_init(&mISDNport->downqueue);
2914 mISDNport->d_stid = stinf->id;
2915 PDEBUG(DEBUG_ISDN, "d_stid = 0x%x.\n", mISDNport->d_stid);
2916 if ((stinf->pid.protocol[2]&ISDN_PID_L2_DF_PTP) || (nt&&ptp) || pri)
2918 PDEBUG(DEBUG_ISDN, "Port is point-to-point.\n");
2922 PDEBUG(DEBUG_ISDN, "Port is forced to point-to-multipoint.\n");
2927 /* create layer intance */
2928 memset(&li, 0, sizeof(li));
2929 UCPY(&li.name[0], (nt)?"net l2":"pbx l4");
2932 li.pid.protocol[nt?2:4] = (nt)?ISDN_PID_L2_LAPD_NET:ISDN_PID_L4_CAPI20;
2933 li.pid.layermask = ISDN_LAYER((nt?2:4));
2934 li.st = mISDNport->d_stid;
2935 ret = mISDN_new_layer(mISDNdevice, &li);
2938 PERROR("Cannot add layer %d of port %d (ret %d)\n", nt?2:4, port, ret);
2940 mISDNport_close(mISDNport);
2943 mISDNport->upper_id = li.id;
2944 ret = mISDN_register_layer(mISDNdevice, mISDNport->d_stid, mISDNport->upper_id);
2947 PERROR("Cannot register layer %d of port %d\n", nt?2:4, port);
2950 mISDNport->lower_id = mISDN_get_layerid(mISDNdevice, mISDNport->d_stid, nt?1:3); // id of lower layer (nt=1, te=3)
2951 if (mISDNport->lower_id < 0)
2953 PERROR("Cannot get layer(%d) id of port %d\n", nt?1:3, port);
2956 mISDNport->upper_id = mISDN_get_layerid(mISDNdevice, mISDNport->d_stid, nt?2:4); // id of uppermost layer (nt=2, te=4)
2957 if (mISDNport->upper_id < 0)
2959 PERROR("Cannot get layer(%d) id of port %d\n", nt?2:4, port);
2962 PDEBUG(DEBUG_ISDN, "Layer %d of port %d added.\n", nt?2:4, port);
2964 /* if ntmode, establish L1 to send the tei removal during start */
2965 if (mISDNport->ntmode)
2969 act.prim = PH_ACTIVATE | REQUEST;
2970 act.addr = mISDNport->upper_id | FLG_MSG_DOWN;
2971 printf("UPPER ID 0x%x, addr 0x%x\n",mISDNport->upper_id, act.addr);
2974 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
2975 usleep(10000); /* to be sure, that l1 is up */
2978 /* create nst (nt-mode only) */
2981 mgr = &mISDNport->mgr;
2982 nst = &mISDNport->nst;
2987 nst->l3_manager = stack2manager_nt; /* messages from nt-mode */
2988 nst->device = mISDNdevice;
2990 nst->d_stid = mISDNport->d_stid;
2992 nst->feature = FEATURE_NET_HOLD;
2994 nst->feature |= FEATURE_NET_PTP;
2996 nst->feature |= FEATURE_NET_CRLEN2 | FEATURE_NET_EXTCID;
2999 while(i < mISDNport->b_num)
3001 nst->b_stid[i] = mISDNport->b_stid[i];
3005 nst->l1_id = mISDNport->lower_id;
3006 nst->l2_id = mISDNport->upper_id;
3009 msg_queue_init(&nst->down_queue);
3015 mISDNport->b_num = stinf->childcnt;
3017 mISDNport->portnum = port;
3018 mISDNport->ntmode = nt;
3019 mISDNport->pri = pri;
3020 mISDNport->ptp = ptp;
3021 PDEBUG(DEBUG_ISDN, "Port has %d b-channels.\n", mISDNport->b_num);
3023 while(i < mISDNport->b_num)
3025 mISDNport->b_state[i] = B_STATE_IDLE;
3027 mISDNport->b_socket = -1;
3029 mISDNport->b_stid[i] = stinf->child[i];
3030 PDEBUG(DEBUG_ISDN, "b_stid[%d] = 0x%x.\n", i, mISDNport->b_stid[i]);
3035 /* if te-mode, query state link */
3036 if (!mISDNport->ntmode)
3040 PDEBUG(DEBUG_ISDN, "sending short status request for port %d.\n", port);
3041 act.prim = MGR_SHORTSTATUS | REQUEST;
3042 act.addr = mISDNport->upper_id | MSG_BROADCAST;
3043 act.dinfo = SSTATUS_BROADCAST_BIT | SSTATUS_ALL;
3045 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
3047 /* if ptp AND te-mode, pull up the link */
3048 if (mISDNport->ptp && !mISDNport->ntmode)
3052 act.prim = DL_ESTABLISH | REQUEST;
3053 act.addr = (mISDNport->upper_id & ~LAYER_ID_MASK) | 4 | FLG_MSG_DOWN;
3056 mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
3058 /* if ptp AND nt-mode, pull up the link */
3059 if (mISDNport->ptp && mISDNport->ntmode)
3063 dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0);
3064 if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
3067 /* initially, we assume that the link is down, exept for nt-ptmp */
3068 mISDNport->l2link = (mISDNport->ntmode && !mISDNport->ptp)?1:0;
3070 PDEBUG(DEBUG_BCHANNEL, "using 'mISDN_dsp.o' module\n");
3072 start_trace(mISDNport->portnum,
3080 add_trace("channels", NULL, "%d", mISDNport->b_num);
3087 * function to free ALL cards (ports)
3089 void mISDNport_close_all(void)
3091 /* free all ports */
3092 while(mISDNport_first)
3093 mISDNport_close(mISDNport_first);
3097 * free only one port
3099 void mISDNport_close(struct mISDNport *mISDNport)
3101 struct mISDNport **mISDNportp;
3103 class PmISDN *isdnport;
3105 unsigned char buf[32];
3108 /* remove all port instance that are linked to this mISDNport */
3112 if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_mISDN)
3114 isdnport = (class PmISDN *)port;
3115 if (isdnport->p_m_mISDNport)
3117 PDEBUG(DEBUG_ISDN, "port %s uses mISDNport %d, destroying it.\n", isdnport->p_name, mISDNport->portnum);
3124 /* only if we are already part of interface */
3125 if (mISDNport->ifport)
3127 start_trace(mISDNport->portnum,
3128 mISDNport->ifport->interface,
3138 /* free bchannels */
3140 while(i < mISDNport->b_num)
3142 if (mISDNport->b_addr[i])
3144 _bchannel_destroy(mISDNport, i);
3145 PDEBUG(DEBUG_BCHANNEL, "freeing %s port %d bchannel (index %d).\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, i);
3151 close_layer3(mISDNport->ml3);
3153 /* free ressources of port */
3154 msg_queue_purge(&mISDNport->downqueue);
3157 if (mISDNport->ntmode)
3159 nst = &mISDNport->nst;
3160 if (nst->manager) /* to see if initialized */
3162 PDEBUG(DEBUG_STACK, "the following messages are ok: one L3 process always exists (broadcast process) and some L2 instances (broadcast + current telephone's instances)\n");
3163 cleanup_Isdnl3(nst);
3164 cleanup_Isdnl2(nst);
3167 msg_queue_purge(&nst->down_queue);
3168 if (nst->phd_down_msg)
3169 FREE(nst->phd_down_msg, 0);
3173 PDEBUG(DEBUG_BCHANNEL, "freeing d-stack.\n");
3174 if (mISDNport->d_stid)
3176 if (mISDNport->upper_id)
3177 mISDN_write_frame(mISDNdevice, buf, mISDNport->upper_id | FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
3181 /* remove from list */
3182 mISDNportp = &mISDNport_first;
3185 if (*mISDNportp == mISDNport)
3187 *mISDNportp = (*mISDNportp)->next;
3191 mISDNportp = &((*mISDNportp)->next);
3195 FATAL("mISDNport not in list\n");
3197 FREE(mISDNport, sizeof(struct mISDNport));
3204 * global function to show all available isdn ports
3206 void mISDN_port_info(void)
3210 int useable, nt, te, pri, bri, pots;
3211 unsigned char buff[1025];
3212 iframe_t *frm = (iframe_t *)buff;
3214 struct mISDN_devinfo devinfo;
3218 socket = socket(PF_ISDN, SOCK_RAW, ISDN_P_BASE);
3221 fprintf(stderr, "Cannot open mISDN due to %s. (Does your Kernel support socket based mISDN?)\n", strerror(errno));
3225 /* get number of stacks */
3227 ret = ioctl(socket, IMGETCOUNT, &ii);
3230 fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
3234 stack_info_t *stinf;
3238 if ((device = mISDN_open()) < 0)
3240 fprintf(stderr, "Cannot open mISDN device ret=%d errno=%d (%s) Check for mISDN modules!\nAlso did you create \"/dev/mISDN\"? Do: \"mknod /dev/mISDN c 46 0\"\n", device, errno, strerror(errno));
3244 /* get number of stacks */
3246 ii = mISDN_get_stack_count(device);
3251 printf("Found no card. Please be sure to load card drivers.\n");
3255 /* loop the number of cards and get their info */
3258 nt = te = bri = pri = pots = 0;
3263 ret = ioctl(socket, IMGETDEVINFO, &devinfo);
3266 fprintf(stderr, "Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", i, ret);
3270 /* output the port info */
3271 printf("Port %2d name='%s': ", i, devinfo.name);
3272 if (devinfo.Dprotocols & (1 << ISDN_P_TE_S0))
3277 if (devinfo.Dprotocols & (1 << ISDN_P_NT_S0))
3283 if (devinfo.Dprotocols & (1 << ISDN_P_TE_E1))
3290 if (devinfo.Dprotocols & (1 << ISDN_P_NT_E1))
3297 if (devinfo.Dprotocols & (1 << ISDN_P_FXS))
3304 if (devinfo.Dprotocols & (1 << ISDN_P_FXO))
3310 if ((te || nt) && (bri || pri || ports))
3314 printf("TE-mode BRI S/T interface line (for phone lines)");
3316 printf("NT-mode BRI S/T interface port (for phones)");
3318 printf("TE-mode PRI E1 interface line (for phone lines)");
3320 printf("NT-mode PRI E1 interface port (for E1 terminals)");
3322 printf("FXS POTS interface port (for analog lines)");
3324 printf("FXO POTS interface port (for analog phones)");
3328 printf("\n -> Analog interfaces are not supported.");
3332 printf("unsupported interface protocol bits 0x%016x", devinfo.Dprotocols);
3336 printf(" - %d B-channels\n", devinfo.nfbchan);
3338 ret = mISDN_get_stack_info(device, i, buff, sizeof(buff));
3341 fprintf(stderr, "mISDN_get_stack_info() failed: port=%d error=%d\n", i, ret);
3344 stinf = (stack_info_t *)&frm->data.p;
3346 /* output the port info */
3347 printf("Port %2d: ", i);
3348 switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK)
3350 case ISDN_PID_L0_TE_S0:
3354 printf("TE-mode BRI S/T interface line (for phone lines)");
3356 case ISDN_PID_L0_NT_S0:
3360 printf("NT-mode BRI S/T interface port (for phones)");
3362 case ISDN_PID_L0_TE_E1:
3366 printf("TE-mode PRI E1 interface line (for phone lines)");
3368 case ISDN_PID_L0_NT_E1:
3372 printf("NT-mode PRI E1 interface port (for E1 terminals)");
3376 printf("unknown type 0x%08x",stinf->pid.protocol[0]);
3382 if (stinf->pid.protocol[1] == 0)
3385 printf(" -> Missing layer 1 NT-mode protocol.\n");
3388 while(p <= MAX_LAYER_NR) {
3389 if (stinf->pid.protocol[p])
3392 printf(" -> Layer %d protocol 0x%08x is detected, port already in use by another application.\n", p, stinf->pid.protocol[p]);
3399 printf(" -> Interface is Point-To-Point (PRI).\n");
3401 printf(" -> Interface can be Poin-To-Point/Multipoint.\n");
3406 if (stinf->pid.protocol[1] == 0)
3409 printf(" -> Missing layer 1 protocol.\n");
3411 if (stinf->pid.protocol[2] == 0)
3414 printf(" -> Missing layer 2 protocol.\n");
3416 if (stinf->pid.protocol[2] & ISDN_PID_L2_DF_PTP)
3418 printf(" -> Interface is Poin-To-Point.\n");
3420 if (stinf->pid.protocol[3] == 0)
3423 printf(" -> Missing layer 3 protocol.\n");
3426 printf(" -> Protocol: ");
3427 switch(stinf->pid.protocol[3] & ~ISDN_PID_FEATURE_MASK)
3429 case ISDN_PID_L3_DSS1USER:
3430 printf("DSS1 (Euro ISDN)");
3435 printf("unknown protocol 0x%08x",stinf->pid.protocol[3]);
3440 while(p <= MAX_LAYER_NR) {
3441 if (stinf->pid.protocol[p])
3444 printf(" -> Layer %d protocol 0x%08x is detected, port already in use by another application.\n", p, stinf->pid.protocol[p]);
3449 printf(" - %d B-channels\n", stinf->childcnt);
3453 printf(" * Port NOT useable for LCR\n");
3455 printf("--------\n");
3466 if ((ret = mISDN_close(device)))
3467 FATAL("mISDN_close() failed: err=%d '%s'\n", ret, strerror(ret));
3473 * enque data from upper buffer
3475 void PmISDN::txfromup(unsigned char *data, int length)
3478 unsigned char buf[MISDN_HEADER_LEN+((length>ISDN_LOAD)?length:ISDN_LOAD)];
3479 struct mISDNhead *frm = (struct mISDNhead *)buf;
3481 if (p_m_b_index < 0)
3483 if (!p_m_mISDNport->b_socket[p_m_b_index])
3486 unsigned char buf[mISDN_HEADER_LEN+((length>ISDN_LOAD)?length:ISDN_LOAD)];
3487 iframe_t *frm = (iframe_t *)buf;
3489 if (p_m_b_index < 0)
3491 if (!p_m_mISDNport->b_addr[p_m_b_index])
3495 /* check if high priority tones exist
3496 * ignore data in this case
3498 if (p_tone_name[0] || p_m_crypt_msg_loops)
3501 /* preload procedure
3502 * if transmit buffer in DSP module is empty,
3503 * preload it to DSP_LOAD to prevent jitter gaps.
3505 if (p_m_load==0 && ISDN_LOAD>0)
3508 memcpy(buf+mISDN_HEADER_LEN, data, ISDN_LOAD);
3509 frm->len = ISDN_LOAD;
3510 mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
3511 p_m_load += frm->len;
3514 /* drop if load would exceed ISDN_MAXLOAD
3515 * this keeps the delay not too high
3517 if (p_m_load+length > ISDN_MAXLOAD)
3520 /* make and send frame */
3522 frm->prim = DL_DATA_REQ;
3524 memcpy(buf+MISDN_HEADER_LEN, data, length);
3525 ret = sendto(p_m_mISDNport->b_socket[p_m_b_index], buf, MISDN_HEADER_LEN+length, 0, NULL, 0);
3527 PERROR("Failed to send to socket %d\n", handle);
3529 frm->prim = DL_DATA | REQUEST;
3530 frm->addr = p_m_mISDNport->b_addr[p_m_b_index] | FLG_MSG_DOWN;
3533 memcpy(buf+mISDN_HEADER_LEN, data, length);
3534 mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);