socket_server.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** Socket link server                                                        **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 #include <sys/socket.h>
  14 #include <sys/un.h>
  15 #include <curses.h>
  16 #ifdef PACKAGE_VERSION
  17 #undef PACKAGE_VERSION
  18 #endif
  19 #include "config.h"
  20
  21
  22 char socket_name[128];
  23 int sock = -1;
  24 struct sockaddr_un sock_address;
  25
  26 struct admin_list *admin_first = NULL;
  27 static struct lcr_fd admin_fd;
  28
  29 int admin_handle(struct lcr_fd *fd, unsigned int what, void *instance, int index);
  30
  31 /*
  32  * initialize admin socket
  33  */
  34 int admin_init(void)
  35 {
  36         /* open and bind socket */
  37         if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
  38                 PERROR("Failed to create admin socket. (errno=%d)\n", errno);
  39                 return(-1);
  40         }
  41         fhuse++;
  42         memset(&sock_address, 0, sizeof(sock_address));
  43         SPRINT(socket_name, SOCKET_NAME, options.lock);
  44         sock_address.sun_family = AF_UNIX;
  45         UCPY(sock_address.sun_path, socket_name);
  46         unlink(socket_name);
  47         if (bind(sock, (struct sockaddr *)(&sock_address), SUN_LEN(&sock_address)) < 0) {
  48                 close(sock);
  49                 unlink(socket_name);
  50                 fhuse--;
  51                 sock = -1;
  52                 PERROR("Failed to bind admin socket to \"%s\". (errno=%d)\n", sock_address.sun_path, errno);
  53                 return(-1);
  54         }
  55         if (listen(sock, 5) < 0) {
  56                 close(sock);
  57                 unlink(socket_name);
  58                 fhuse--;
  59                 sock = -1;
  60                 PERROR("Failed to listen to socket \"%s\". (errno=%d)\n", sock_address.sun_path, errno);
  61                 return(-1);
  62         }
  63         memset(&admin_fd, 0, sizeof(admin_fd));
  64         admin_fd.fd = sock;
  65         register_fd(&admin_fd, LCR_FD_READ | LCR_FD_EXCEPT, admin_handle, NULL, 0);
  66         if (chmod(socket_name, options.socketrights) < 0) {
  67                 PERROR("Failed to change socket rights to %d. (errno=%d)\n", options.socketrights, errno);
  68         }
  69         if (chown(socket_name, options.socketuser, options.socketgroup) < 0) {
  70                 PERROR("Failed to change socket user/group to %d/%d. (errno=%d)\n", options.socketuser, options.socketgroup, errno);
  71         }
  72
  73         return(0);
  74 }
  75
  76
  77 /*
  78  * free connection
  79  * also releases all remote joins
  80  */
  81 void free_connection(struct admin_list *admin)
  82 {
  83         struct admin_queue *response;
  84         void *temp;
  85         union parameter param;
  86         class Join *join, *joinnext;
  87         struct mISDNport *mISDNport;
  88         int i, ii;
  89         struct admin_list **adminp;
  90         class Port *port, *portnext;
  91         class Premote *remote;
  92
  93         /* free remote joins */
  94         if (admin->remote_name[0]) {
  95                 start_trace(-1,
  96                         NULL,
  97                         NULL,
  98                         NULL,
  99                         DIRECTION_NONE,
 100                         0,
 101                         0,
 102                         "REMOTE APP release");
 103                 add_trace("app", "name", "%s", admin->remote_name);
 104                 end_trace();
 105                 /* release all exported channels */
 106                 mISDNport = mISDNport_first;
 107                 while(mISDNport) {
 108                         i = 0;
 109                         ii = mISDNport->b_num;
 110                         while(i < ii) {
 111                                 if (mISDNport->b_remote_id[i] == admin->sock) {
 112                                         mISDNport->b_state[i] = B_STATE_IDLE;
 113                                         unsched_timer(&mISDNport->b_timer[i]);
 114                                         mISDNport->b_remote_id[i] = 0;
 115                                         mISDNport->b_remote_ref[i] = 0;
 116                                 }
 117                                 i++;
 118                         }
 119                         mISDNport = mISDNport->next;
 120                 }
 121                 /* release join */
 122                 join = join_first;
 123                 while(join) {
 124                         joinnext = join->next;
 125                         if (join->j_type==JOIN_TYPE_REMOTE) if (((class JoinRemote *)join)->j_remote_id == admin->sock) {
 126                                 memset(&param, 0, sizeof(param));
 127                                 param.disconnectinfo.cause = CAUSE_OUTOFORDER;
 128                                 param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 129                                 ((class JoinRemote *)join)->message_remote(MESSAGE_RELEASE, &param);
 130                                 /* join is now destroyed, so we go to next join */
 131                         }
 132                         join = joinnext;
 133                 }
 134                 /* release remote port */
 135                 port = port_first;
 136                 while(port) {
 137                         portnext = port->next;
 138                         if ((port->p_type & PORT_CLASS_MASK) == PORT_CLASS_REMOTE) {
 139                                 remote = (class Premote *) port;
 140                                 if (remote->p_m_r_remote_id == admin->sock) {
 141                                         memset(&param, 0, sizeof(param));
 142                                         param.disconnectinfo.cause = CAUSE_OUTOFORDER;
 143                                         param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 144                                         remote->message_remote(MESSAGE_RELEASE, &param);
 145                                         /* port is now destroyed, so we go to next join */
 146                                 }
 147                         }
 148                         port = portnext;
 149                 }
 150         }
 151
 152         if (admin->sock >= 0) {
 153                 unregister_fd(&admin->fd);
 154                 close(admin->sock);
 155                 fhuse--;
 156         }
 157         response = admin->response;
 158         while (response) {
 159                 temp = response->next;
 160                 FREE(response, 0);
 161                 memuse--;
 162                 response = (struct admin_queue *)temp;
 163         }
 164
 165         adminp = &admin_first;
 166         while(*adminp) {
 167                 if (*adminp == admin)
 168                         break;
 169                 adminp = &((*adminp)->next);
 170         }
 171         if (*adminp)
 172                 *adminp = (*adminp)->next;
 173
 174         FREE(admin, 0);
 175         memuse--;
 176 }
 177
 178
 179 /*
 180  * cleanup admin socket
 181  */
 182 void admin_cleanup(void)
 183 {
 184         struct admin_list *admin, *next;;
 185
 186         admin = admin_first;
 187         while(admin) {
 188                 next = admin->next;
 189                 free_connection(admin);
 190                 admin = next;
 191         }
 192
 193         if (sock >= 0) {
 194                 unregister_fd(&admin_fd);
 195                 close(sock);
 196                 fhuse--;
 197         }
 198
 199         unlink(socket_name);
 200 }
 201
 202
 203 /*
 204  * do interface reload
 205  */
 206 int admin_interface(struct admin_queue **responsep)
 207 {
 208         struct admin_queue      *response;      /* response pointer */
 209         const char              *err_txt = "";
 210         int                     err = 0;
 211
 212         if (read_interfaces()) {
 213                 relink_interfaces();
 214                 free_interfaces(interface_first);
 215                 interface_first = interface_newlist;
 216                 interface_newlist = NULL;
 217         } else {
 218                 err_txt = interface_error;
 219                 err = -1;
 220         }
 221         /* create state response */
 222         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 223         memuse++;
 224         response->num = 1;
 225         /* message */
 226         response->am[0].message = ADMIN_RESPONSE_CMD_INTERFACE;
 227         /* error */
 228         response->am[0].u.x.error = err;
 229         /* message */
 230         SCPY(response->am[0].u.x.message, err_txt);
 231         /* attach to response chain */
 232         *responsep = response;
 233         responsep = &response->next;
 234         return(0);
 235 }
 236
 237
 238 /*
 239  * do route reload
 240  */
 241 int admin_route(struct admin_queue **responsep)
 242 {
 243         struct route_ruleset    *ruleset_new;
 244         struct admin_queue      *response;      /* response pointer */
 245         char                    err_txt[256] = "";
 246         int                     err = 0;
 247 #if 0
 248         int                     n;
 249 #endif
 250         class EndpointAppPBX    *apppbx;
 251
 252 #if 0
 253         n = 0;
 254         apppbx = apppbx_first;
 255         while(apppbx) {
 256                 n++;
 257                 apppbx = apppbx->next;
 258         }
 259         if (apppbx_first) {
 260                 SPRINT(err_txt, "Cannot reload routing, because %d endpoints active\n", n);
 261                 err = -1;
 262                 goto response;
 263         }
 264 #endif
 265         if (!(ruleset_new = ruleset_parse())) {
 266                 SPRINT(err_txt, ruleset_error);
 267                 err = -1;
 268                 goto response;
 269         }
 270         ruleset_free(ruleset_first);
 271         ruleset_first = ruleset_new;
 272         ruleset_main = getrulesetbyname("main");
 273         if (!ruleset_main) {
 274                 SPRINT(err_txt, "Ruleset reloaded, but rule 'main' not found.\n");
 275                 err = -1;
 276         }
 277         apppbx = apppbx_first;
 278         while(apppbx) {
 279                 if (apppbx->e_action) {
 280                         switch(apppbx->e_action->index) {
 281                                 case ACTION_INTERNAL:
 282                                 apppbx->e_action = &action_internal;
 283                                 break;
 284                                 case ACTION_EXTERNAL:
 285                                 apppbx->e_action = &action_external;
 286                                 break;
 287                                 case ACTION_REMOTE:
 288                                 apppbx->e_action = &action_remote;
 289                                 break;
 290                                 case ACTION_VBOX_RECORD:
 291                                 apppbx->e_action = &action_vbox;
 292                                 break;
 293                                 case ACTION_PARTYLINE:
 294                                 apppbx->e_action = &action_partyline;
 295                                 break;
 296                                 default:
 297                                 goto release;
 298                         }
 299                 } else if (apppbx->e_state != EPOINT_STATE_CONNECT) {
 300                         release:
 301                         unsched_timer(&apppbx->e_callback_timeout);
 302                         apppbx->e_action = NULL;
 303                         apppbx->release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, 0);
 304                         start_trace(-1,
 305                                 NULL,
 306                                 numberrize_callerinfo(apppbx->e_callerinfo.id, apppbx->e_callerinfo.ntype, options.national, options.international),
 307                                 apppbx->e_dialinginfo.id,
 308                                 DIRECTION_NONE,
 309                                 CATEGORY_EP,
 310                                 apppbx->ea_endpoint->ep_serial,
 311                                 "KICK (reload routing)");
 312                         end_trace();
 313                 }
 314
 315                 unsched_timer(&apppbx->e_action_timeout);
 316                 apppbx->e_rule = NULL;
 317                 apppbx->e_ruleset = NULL;
 318
 319                 apppbx = apppbx->next;
 320         }
 321
 322         response:
 323         /* create state response */
 324         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 325         memuse++;
 326         response->num = 1;
 327         /* message */
 328         response->am[0].message = ADMIN_RESPONSE_CMD_ROUTE;
 329         /* error */
 330         response->am[0].u.x.error = err;
 331         /* message */
 332         SCPY(response->am[0].u.x.message, err_txt);
 333         /* attach to response chain */
 334         *responsep = response;
 335         responsep = &response->next;
 336         return(0);
 337 }
 338
 339
 340 /*
 341  * do dialing
 342  */
 343 int admin_dial(struct admin_queue **responsep, char *message)
 344 {
 345         struct extension        ext;            /* temporary extension's settings */
 346         struct admin_queue      *response;      /* response pointer */
 347         char                    *p;             /* pointer to dialing digits */
 348
 349         /* create state response */
 350         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 351         memuse++;
 352         response->num = 1;
 353         /* message */
 354         response->am[0].message = ADMIN_RESPONSE_CMD_DIAL;
 355
 356         /* process request */
 357         if (!(p = strchr(message,':'))) {
 358                 response->am[0].u.x.error = -EINVAL;
 359                 SPRINT(response->am[0].u.x.message, "no seperator ':' in message to seperate number from extension");
 360                 goto out;
 361         }
 362         *p++ = 0;
 363
 364         /* modify extension */
 365         if (!read_extension(&ext, message)) {
 366                 response->am[0].u.x.error = -EINVAL;
 367                 SPRINT(response->am[0].u.x.message, "extension doesn't exist");
 368                 goto out;
 369         }
 370         SCPY(ext.next, p);
 371         write_extension(&ext, message);
 372
 373         out:
 374         /* attach to response chain */
 375         *responsep = response;
 376         responsep = &response->next;
 377         return(0);
 378 }
 379
 380
 381 /*
 382  * do tracing
 383  */
 384 int admin_trace(struct admin_list *admin, struct admin_trace_req *trace)
 385 {
 386         memcpy(&admin->trace, trace, sizeof(struct admin_trace_req));
 387         return(0);
 388 }
 389
 390
 391 /*
 392  * do blocking
 393  *
 394  * 0 = make port available
 395  * 1 = make port administratively blocked
 396  * 2 = unload port
 397  * the result is returned:
 398  * 0 = port is now available
 399  * 1 = port is now blocked
 400  * 2 = port cannot be loaded or has been unloaded
 401  * -1 = port doesn't exist
 402  */
 403 int admin_block(struct admin_queue **responsep, int portnum, int block)
 404 {
 405         struct admin_queue      *response;      /* response pointer */
 406         struct interface        *interface;
 407         struct interface_port   *ifport;
 408
 409         /* create block response */
 410         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 411         memuse++;
 412         response->num = 1;
 413         /* message */
 414         response->am[0].message = ADMIN_RESPONSE_CMD_BLOCK;
 415         response->am[0].u.x.portnum = portnum;
 416
 417         /* search for port */
 418         ifport = NULL;
 419         interface = interface_first;
 420         while(interface) {
 421                 ifport = interface->ifport;
 422                 while(ifport) {
 423                         if (ifport->portnum == portnum)
 424                                 break;
 425                         ifport = ifport->next;
 426                 }
 427                 if (ifport)
 428                         break;
 429                 interface = interface->next;
 430         }
 431         /* not found, we return -1 */
 432         if (!ifport) {
 433                 response->am[0].u.x.block = -1;
 434                 response->am[0].u.x.error = 1;
 435                 SPRINT(response->am[0].u.x.message, "Port %d does not exist.", portnum);
 436                 goto out;
 437         }
 438
 439         /* no interface */
 440         if (!ifport->mISDNport) {
 441                 /* not loaded anyway */
 442                 if (block >= 2) {
 443                         response->am[0].u.x.block = 2;
 444                         goto out;
 445                 }
 446
 447                 /* try loading interface */
 448                 ifport->block = block;
 449                 load_port(ifport);
 450
 451                 /* port cannot load */
 452                 if (ifport->block >= 2) {
 453                         response->am[0].u.x.block = 2;
 454                         response->am[0].u.x.error = 1;
 455                         SPRINT(response->am[0].u.x.message, "Port %d will not load.", portnum);
 456                         goto out;
 457                 }
 458
 459                 /* port loaded */
 460                 response->am[0].u.x.block = ifport->block;
 461                 goto out;
 462         }
 463
 464         /* if we shall unload interface */
 465         if (block >= 2) {
 466                 mISDNport_close(ifport->mISDNport);
 467                 ifport->mISDNport = 0;
 468                 ifport->block = 2;
 469                 goto out;
 470         }
 471
 472         /* port new blocking state */
 473         ifport->block = response->am[0].u.x.block = block;
 474
 475         out:
 476         /* attach to response chain */
 477         *responsep = response;
 478         responsep = &response->next;
 479         return(0);
 480 }
 481
 482
 483 /*
 484  * do release
 485  */
 486 int admin_release(struct admin_queue **responsep, char *message)
 487 {
 488         unsigned int            id;
 489         struct admin_queue      *response;      /* response pointer */
 490         class EndpointAppPBX    *apppbx;
 491
 492         /* create state response */
 493         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 494         memuse++;
 495         response->num = 1;
 496         /* message */
 497         response->am[0].message = ADMIN_RESPONSE_CMD_RELEASE;
 498
 499         id = atoi(message);
 500         apppbx = apppbx_first;
 501         while(apppbx) {
 502                 if (apppbx->ea_endpoint->ep_serial == id)
 503                         break;
 504                 apppbx = apppbx->next;
 505         }
 506         if (!apppbx) {
 507                 response->am[0].u.x.error = -EINVAL;
 508                 SPRINT(response->am[0].u.x.message, "Given endpoint %d doesn't exist.", id);
 509                 goto out;
 510         }
 511
 512         unsched_timer(&apppbx->e_callback_timeout);
 513         apppbx->release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, 0);
 514
 515         out:
 516         /* attach to response chain */
 517         *responsep = response;
 518         responsep = &response->next;
 519         return(0);
 520 }
 521
 522
 523 /*
 524  * do call
 525  */
 526 int admin_call(struct admin_list *admin, struct admin_message *msg)
 527 {
 528         class Endpoint          *epoint;
 529         class EndpointAppPBX    *apppbx;
 530
 531         if (!(epoint = new Endpoint(0, 0)))
 532                 FATAL("No memory for Endpoint instance\n");
 533         if (!(epoint->ep_app = apppbx = new DEFAULT_ENDPOINT_APP(epoint, 1))) // outgoing
 534                 FATAL("No memory for Endpoint Application instance\n");
 535         apppbx->e_adminid = admin->sockserial;
 536         admin->epointid = epoint->ep_serial;
 537         SCPY(apppbx->e_callerinfo.id, nationalize_callerinfo(msg->u.call.callerid, &apppbx->e_callerinfo.ntype, options.national, options.international));
 538         if (msg->u.call.present)
 539                 apppbx->e_callerinfo.present = INFO_PRESENT_ALLOWED;
 540         else
 541                 apppbx->e_callerinfo.present = INFO_PRESENT_RESTRICTED;
 542         apppbx->e_callerinfo.screen = INFO_SCREEN_NETWORK;
 543
 544
 545         apppbx->e_capainfo.bearer_capa = msg->u.call.bc_capa;
 546         apppbx->e_capainfo.bearer_mode = msg->u.call.bc_mode;
 547         apppbx->e_capainfo.bearer_info1 = msg->u.call.bc_info1;
 548         apppbx->e_capainfo.hlc = msg->u.call.hlc;
 549         apppbx->e_capainfo.exthlc = msg->u.call.exthlc;
 550         SCPY(apppbx->e_dialinginfo.id, msg->u.call.dialing);
 551         SCPY(apppbx->e_dialinginfo.interfaces, msg->u.call.interface);
 552         apppbx->e_dialinginfo.sending_complete = 1;
 553
 554         apppbx->new_state(PORT_STATE_OUT_SETUP);
 555         apppbx->out_setup(0);
 556         return(0);
 557 }
 558
 559
 560 /*
 561  * this function is called for response whenever a call state changes.
 562  */
 563 void admin_call_response(int adminid, int message, const char *connected, int cause, int location, int notify_progress)
 564 {
 565         struct admin_list       *admin;
 566         struct admin_queue      *response, **responsep; /* response pointer */
 567
 568         /* searching for admin id
 569          * maybe there is no admin instance, because the calling port was not
 570          * initiated by admin_call */
 571         admin = admin_first;
 572         while(admin) {
 573                 if (adminid == admin->sockserial)
 574                         break;
 575                 admin = admin->next;
 576         }
 577         if (!admin)
 578                 return;
 579
 580         /* seek to end of response list */
 581         response = admin->response;
 582         responsep = &admin->response;
 583         while(response) {
 584                 responsep = &response->next;
 585                 response = response->next;
 586         }
 587
 588         /* create state response */
 589         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 590         memuse++;
 591         response->num = 1;
 592         /* message */
 593         response->am[0].message = message;
 594
 595         SCPY(response->am[0].u.call.callerid, connected);
 596         response->am[0].u.call.cause = cause;
 597         response->am[0].u.call.location = location;
 598         response->am[0].u.call.notify_progress = notify_progress;
 599
 600         /* attach to response chain */
 601         *responsep = response;
 602         responsep = &response->next;
 603         admin->fd.when |= LCR_FD_WRITE;
 604 }
 605
 606
 607 /*
 608  * send data to the remote socket join instance
 609  */
 610 int admin_message_to_lcr(struct admin_msg *msg, struct admin_list *admin)
 611 {
 612         struct mISDNport                *mISDNport;
 613         class Join                      *join;
 614         class JoinRemote                *joinremote = NULL; /* make GCC happy */
 615         class Port                      *port;
 616         class Premote                   *remote = NULL; /* make GCC happy */
 617         struct admin_list               *temp;
 618
 619         /* hello message */
 620         if (msg->type == MESSAGE_HELLO) {
 621                 if (admin->remote_name[0]) {
 622                         PERROR("Remote application repeats hello message.\n");
 623                         return(-1);
 624                 }
 625                 /* look for second application */
 626                 temp = admin_first;
 627                 while(temp) {
 628                         if (!strcmp(temp->remote_name, msg->param.hello.application))
 629                                 break;
 630                         temp = temp->next;
 631                 }
 632                 if (temp) {
 633                         PERROR("Remote application connects twice??? (ignoring)\n");
 634                         return(-1);
 635                 }
 636                 /* set remote socket instance */
 637                 SCPY(admin->remote_name, msg->param.hello.application);
 638                 start_trace(-1,
 639                         NULL,
 640                         NULL,
 641                         NULL,
 642                         DIRECTION_NONE,
 643                         0,
 644                         0,
 645                         "REMOTE APP registers");
 646                 add_trace("app", "name", "%s", admin->remote_name);
 647                 end_trace();
 648                 return(0);
 649         }
 650
 651         /* check we have no application name */
 652         if (!admin->remote_name[0]) {
 653                 PERROR("Remote application did not send us a hello message.\n");
 654                 return(-1);
 655         }
 656
 657         /* new join. the reply (NEWREF assignment) is sent from constructor */
 658         if (msg->type == MESSAGE_NEWREF) {
 659                 if (msg->param.newref.mode) {
 660                         char name[32];
 661                         /* find remote port */
 662                         mISDNport = mISDNport_first;
 663                         while(mISDNport) {
 664                                 if (mISDNport->ifport->remote && !strcmp(mISDNport->ifport->remote_app, admin->remote_name))
 665                                         break;
 666                                 mISDNport = mISDNport->next;
 667                         }
 668                         if (!mISDNport) {
 669                                 union parameter param;
 670
 671                                 /* create new join instance */
 672                                 join = joinremote = new JoinRemote(0, admin->remote_name, admin->sock); // must have no serial, because no endpoint is connected
 673                                 if (!join) {
 674                                         FATAL("No memory for remote join instance\n");
 675                                         return(-1);
 676                                 }
 677                                 memset(&param, 0, sizeof(union parameter));
 678                                 param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 679                                 param.disconnectinfo.cause = CAUSE_RESSOURCEUNAVAIL;
 680                                 admin_message_from_lcr(joinremote->j_remote_id, joinremote->j_remote_ref, MESSAGE_RELEASE, &param);
 681                                 return 0;
 682                         }
 683                         /* creating port object, transparent until setup with hdlc */
 684                         SPRINT(name, "%s-%s-in", mISDNport->ifport->interface->name, mISDNport->ifport->remote_app);
 685                         if (!(remote = new Premote(PORT_TYPE_REMOTE_IN, mISDNport, name, NULL, 0, 0, B_MODE_TRANSPARENT, admin->sock)))
 686
 687                                 FATAL("Cannot create Port instance.\n");
 688                 } else {
 689                         /* create new join instance */
 690                         join = new JoinRemote(0, admin->remote_name, admin->sock); // must have no serial, because no endpoint is connected
 691                         if (!join) {
 692                                 FATAL("No memory for remote join instance\n");
 693                                 return(-1);
 694                         }
 695                 }
 696                 return(0);
 697         }
 698
 699         /* bchannel message
 700          * no ref given for *_ack */
 701         if (msg->type == MESSAGE_BCHANNEL)
 702         if (msg->param.bchannel.type == BCHANNEL_ASSIGN_ACK
 703          || msg->param.bchannel.type == BCHANNEL_REMOVE_ACK
 704          || msg->param.bchannel.type == BCHANNEL_RELEASE) {
 705                 /* no ref, but address */
 706                 message_bchannel_from_remote(NULL, msg->param.bchannel.type, msg->param.bchannel.handle);
 707                 return(0);
 708         }
 709
 710         /* check for ref */
 711         if (!msg->ref) {
 712                 PERROR("Remote application did not send us a valid ref with a message.\n");
 713                 return(-1);
 714         }
 715
 716         /* find join instance */
 717         join = join_first;
 718         while(join) {
 719                 if (join->j_type == JOIN_TYPE_REMOTE) {
 720                         joinremote = (class JoinRemote *)join;
 721                         if (joinremote->j_remote_ref == msg->ref)
 722                                 break;
 723                 }
 724                 join = join->next;
 725         }
 726         if (join) {
 727                 if (admin->sock != joinremote->j_remote_id) {
 728                         PERROR("Ref %d belongs to remote application %s, but not to sending application %s.\n", msg->ref, joinremote->j_remote_name, admin->remote_name);
 729                         return(-1);
 730                 }
 731                 /* send message */
 732                 joinremote->message_remote(msg->type, &msg->param);
 733
 734                 return(0);
 735         }
 736
 737         /* find port instance */
 738         port = port_first;
 739         while(port) {
 740                 if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_REMOTE) {
 741                         remote = (class Premote *) port;
 742                         if (remote->p_m_r_ref == msg->ref)
 743                                 break;
 744                 }
 745                 port = port->next;
 746         }
 747         if (port) {
 748                 if (admin->sock != remote->p_m_r_remote_id) {
 749                         PERROR("Ref %d belongs to remote application %s, but not to sending application %s.\n", msg->ref, remote->p_m_r_remote_app, admin->remote_name);
 750                         return(-1);
 751                 }
 752
 753                 /* send message */
 754                 remote->message_remote(msg->type, &msg->param);
 755
 756                 return(0);
 757         }
 758
 759         PDEBUG(DEBUG_LOG, "No remote instance found with ref %d. (May have been already released.)\n", msg->ref);
 760         return(0);
 761
 762 }
 763
 764
 765 /*
 766  * this function is called for every message to remote socket
 767  */
 768 int admin_message_from_lcr(int remote_id, unsigned int ref, int message_type, union parameter *param)
 769 {
 770         struct admin_list       *admin;
 771         struct admin_queue      **responsep;    /* response pointer */
 772
 773         /* searching for admin id
 774          * maybe there is no given remote application
 775          */
 776         admin = admin_first;
 777         while(admin) {
 778                 if (admin->remote_name[0] && admin->sock==remote_id)
 779                         break;
 780                 admin = admin->next;
 781         }
 782         /* no given remote application connected */
 783         if (!admin)
 784                 return(-1);
 785
 786         /* seek to end of response list */
 787         responsep = &admin->response;
 788         while(*responsep) {
 789                 responsep = &(*responsep)->next;
 790         }
 791
 792         /* create state response */
 793         *responsep = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 794         memuse++;
 795         (*responsep)->num = 1;
 796
 797         /* message */
 798         (*responsep)->am[0].message = ADMIN_MESSAGE;
 799         (*responsep)->am[0].u.msg.type = message_type;
 800         (*responsep)->am[0].u.msg.ref = ref;
 801         memcpy(&(*responsep)->am[0].u.msg.param, param, sizeof(union parameter));
 802         admin->fd.when |= LCR_FD_WRITE;
 803         return(0);
 804 }
 805
 806
 807 /*
 808  * do state debugging
 809  */
 810 int admin_state(struct admin_queue **responsep)
 811 {
 812         class Port              *port;
 813         class EndpointAppPBX    *apppbx;
 814         class Join              *join;
 815         class Pdss1             *pdss1;
 816         struct interface        *interface;
 817         struct interface_port   *ifport;
 818         struct mISDNport        *mISDNport;
 819         struct select_channel   *selchannel;
 820         int                     i;
 821         int                     num;
 822         int                     anybusy;
 823         struct admin_queue      *response;
 824         struct admin_list       *admin;
 825         struct tm               *now_tm;
 826         time_t                  now;
 827
 828         /* create state response */
 829         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 830         memuse++;
 831         response->num = 1;
 832         /* message */
 833         response->am[0].message = ADMIN_RESPONSE_STATE;
 834         /* version */
 835         SCPY(response->am[0].u.s.version_string, VERSION_STRING);
 836         /* time */
 837         time(&now);
 838         now_tm = localtime(&now);
 839         memcpy(&response->am[0].u.s.tm, now_tm, sizeof(struct tm));
 840         /* log file */
 841         SCPY(response->am[0].u.s.logfile, options.log);
 842         /* interface count */
 843         i = 0;
 844         interface = interface_first;
 845         while(interface) {
 846                 ifport = interface->ifport;
 847                 while(ifport) {
 848                         i++;
 849                         ifport = ifport->next;
 850                 }
 851                 interface = interface->next;
 852         }
 853         response->am[0].u.s.interfaces = i;
 854         /* remote connection count */
 855         i = 0;
 856         admin = admin_first;
 857         while(admin) {
 858                 if (admin->remote_name[0])
 859                         i++;
 860                 admin = admin->next;
 861         }
 862         response->am[0].u.s.remotes = i;
 863         /* join count */
 864         join = join_first;
 865         i = 0;
 866         while(join) {
 867                 i++;
 868                 join = join->next;
 869         }
 870         response->am[0].u.s.joins = i;
 871         /* apppbx count */
 872         apppbx = apppbx_first;
 873         i = 0;
 874         while(apppbx) {
 875                 i++;
 876                 apppbx = apppbx->next;
 877         }
 878         response->am[0].u.s.epoints = i;
 879         /* port count */
 880         i = 0;
 881         port = port_first;
 882         while(port) {
 883                 i++;
 884                 port = port->next;
 885         }
 886         response->am[0].u.s.ports = i;
 887         /* attach to response chain */
 888         *responsep = response;
 889         responsep = &response->next;
 890
 891         /* create response for all instances */
 892         num = (response->am[0].u.s.interfaces)
 893             + (response->am[0].u.s.remotes)
 894             + (response->am[0].u.s.joins)
 895             + (response->am[0].u.s.epoints)
 896             + (response->am[0].u.s.ports);
 897         if (num == 0)
 898                 return(0);
 899         response = (struct admin_queue *)MALLOC(sizeof(admin_queue)+(num*sizeof(admin_message)));
 900         memuse++;
 901         response->num = num;
 902         *responsep = response;
 903         responsep = &response->next;
 904         interface = interface_first;
 905         num = 0;
 906         while(interface) {
 907                 ifport = interface->ifport;
 908                 while(ifport) {
 909                         /* message */
 910                         response->am[num].message = ADMIN_RESPONSE_S_INTERFACE;
 911                         /* interface */
 912                         SCPY(response->am[num].u.i.interface_name, interface->name);
 913                         /* portnum */
 914                         response->am[num].u.i.portnum = ifport->portnum;
 915                         /* portname */
 916                         SCPY(response->am[num].u.i.portname, ifport->portname);
 917                         /* iftype */
 918                         response->am[num].u.i.extension = interface->extension;
 919                         /* block */
 920                         response->am[num].u.i.block = ifport->block;
 921                         if (ifport->mISDNport) {
 922                                 mISDNport = ifport->mISDNport;
 923
 924                                 /* ptp */
 925                                 response->am[num].u.i.ptp = mISDNport->ptp;
 926                                 /* l1hold */
 927                                 response->am[num].u.i.l1hold = mISDNport->l1hold;
 928                                 /* l2hold */
 929                                 response->am[num].u.i.l2hold = mISDNport->l2hold;
 930                                 /* ntmode */
 931                                 response->am[num].u.i.ntmode = mISDNport->ntmode;
 932                                 /* pri */
 933                                 response->am[num].u.i.pri = mISDNport->pri;
 934                                 /* use */
 935                                 response->am[num].u.i.use = mISDNport->use;
 936                                 /* l1link */
 937                                 response->am[num].u.i.l1link = mISDNport->l1link;
 938                                 /* l2link */
 939                                 response->am[num].u.i.l2link = mISDNport->l2link;
 940                                 memcpy(response->am[num].u.i.l2mask, mISDNport->l2mask, 16);
 941                                 /* los */
 942                                 response->am[num].u.i.los = mISDNport->los;
 943                                 /* ais */
 944                                 response->am[num].u.i.ais = mISDNport->ais;
 945                                 /* rdi */
 946                                 response->am[num].u.i.rdi = mISDNport->rdi;
 947                                 /* slip */
 948                                 response->am[num].u.i.slip_tx = mISDNport->slip_tx;
 949                                 response->am[num].u.i.slip_rx = mISDNport->slip_rx;
 950                                 /* channels */
 951                                 response->am[num].u.i.channels = mISDNport->b_num;
 952                                 /* channel selection */
 953                                 selchannel = ifport->out_channel;
 954                                 if (ifport->channel_force)
 955                                         SCAT(response->am[num].u.i.out_channel, "force");
 956                                 while (selchannel) {
 957                                         if (response->am[num].u.i.out_channel[0])
 958                                                 SCAT(response->am[num].u.i.out_channel, ",");
 959                                         switch (selchannel->channel) {
 960                                         case CHANNEL_NO:
 961                                                 SCAT(response->am[num].u.i.out_channel, "no");
 962                                                 break;
 963                                         case CHANNEL_ANY:
 964                                                 SCAT(response->am[num].u.i.out_channel, "any");
 965                                                 break;
 966                                         case CHANNEL_FREE:
 967                                                 SCAT(response->am[num].u.i.out_channel, "free");
 968                                                 break;
 969                                         default:
 970                                                 SPRINT(strchr(response->am[num].u.i.out_channel, '\0'), "%d", selchannel->channel);
 971                                         }
 972                                         selchannel = selchannel->next;
 973                                 }
 974                                 selchannel = ifport->in_channel;
 975                                 while (selchannel) {
 976                                         switch (selchannel->channel) {
 977                                         case CHANNEL_FREE:
 978                                                 SCAT(response->am[num].u.i.in_channel, "free");
 979                                                 break;
 980                                         default:
 981                                                 SPRINT(strchr(response->am[num].u.i.in_channel, '\0'), "%d", selchannel->channel);
 982                                         }
 983                                         selchannel = selchannel->next;
 984                                 }
 985                                 /* channel state */
 986                                 i = 0;
 987                                 anybusy = 0;
 988                                 while(i < mISDNport->b_num) {
 989                                         response->am[num].u.i.busy[i] = mISDNport->b_state[i];
 990                                         if (mISDNport->b_port[i])
 991                                                 response->am[num].u.i.port[i] = mISDNport->b_port[i]->p_serial;
 992                                         response->am[num].u.i.mode[i] = mISDNport->b_mode[i];
 993                                         i++;
 994                                 }
 995                         }
 996                         num++;
 997
 998                         ifport = ifport->next;
 999                 }
1000                 interface = interface->next;
1001         }
1002
1003         /* create response for all remotes */
1004         admin = admin_first;
1005         while(admin) {
1006                 if (admin->remote_name[0]) {
1007                         /* message */
1008                         response->am[num].message = ADMIN_RESPONSE_S_REMOTE;
1009                         /* name */
1010                         SCPY(response->am[num].u.r.name, admin->remote_name);
1011                         /* */
1012                         num++;
1013                 }
1014                 admin = admin->next;
1015         }
1016
1017         /* create response for all joins */
1018         join = join_first;
1019         while(join) {
1020                 /* message */
1021                 response->am[num].message = ADMIN_RESPONSE_S_JOIN;
1022                 /* serial */
1023                 response->am[num].u.j.serial = join->j_serial;
1024                 /* partyline */
1025                 if (join->j_type == JOIN_TYPE_PBX)
1026                         response->am[num].u.j.partyline = ((class JoinPBX *)join)->j_partyline;
1027                 /* remote application */
1028                 if (join->j_type == JOIN_TYPE_REMOTE)
1029                         SCPY(response->am[num].u.j.remote, ((class JoinRemote *)join)->j_remote_name);
1030                 /* */
1031                 join = join->next;
1032                 num++;
1033         }
1034
1035         /* create response for all endpoint */
1036         apppbx = apppbx_first;
1037         while(apppbx) {
1038                 /* message */
1039                 response->am[num].message = ADMIN_RESPONSE_S_EPOINT;
1040                 /* serial */
1041                 response->am[num].u.e.serial = apppbx->ea_endpoint->ep_serial;
1042                 /* join */
1043                 response->am[num].u.e.join = apppbx->ea_endpoint->ep_join_id;
1044                 /* rx notification */
1045                 response->am[num].u.e.rx_state = apppbx->e_rx_state;
1046                 /* tx notification */
1047                 response->am[num].u.e.tx_state = apppbx->e_tx_state;
1048                 /* state */
1049                 switch(apppbx->e_state) {
1050                         case EPOINT_STATE_IN_SETUP:
1051                         response->am[num].u.e.state = ADMIN_STATE_IN_SETUP;
1052                         break;
1053                         case EPOINT_STATE_OUT_SETUP:
1054                         response->am[num].u.e.state = ADMIN_STATE_OUT_SETUP;
1055                         break;
1056                         case EPOINT_STATE_IN_OVERLAP:
1057                         response->am[num].u.e.state = ADMIN_STATE_IN_OVERLAP;
1058                         break;
1059                         case EPOINT_STATE_OUT_OVERLAP:
1060                         response->am[num].u.e.state = ADMIN_STATE_OUT_OVERLAP;
1061                         break;
1062                         case EPOINT_STATE_IN_PROCEEDING:
1063                         response->am[num].u.e.state = ADMIN_STATE_IN_PROCEEDING;
1064                         break;
1065                         case EPOINT_STATE_OUT_PROCEEDING:
1066                         response->am[num].u.e.state = ADMIN_STATE_OUT_PROCEEDING;
1067                         break;
1068                         case EPOINT_STATE_IN_ALERTING:
1069                         response->am[num].u.e.state = ADMIN_STATE_IN_ALERTING;
1070                         break;
1071                         case EPOINT_STATE_OUT_ALERTING:
1072                         response->am[num].u.e.state = ADMIN_STATE_OUT_ALERTING;
1073                         break;
1074                         case EPOINT_STATE_CONNECT:
1075                         response->am[num].u.e.state = ADMIN_STATE_CONNECT;
1076                         break;
1077                         case EPOINT_STATE_IN_DISCONNECT:
1078                         response->am[num].u.e.state = ADMIN_STATE_IN_DISCONNECT;
1079                         break;
1080                         case EPOINT_STATE_OUT_DISCONNECT:
1081                         response->am[num].u.e.state = ADMIN_STATE_OUT_DISCONNECT;
1082                         break;
1083                         default:
1084                         response->am[num].u.e.state = ADMIN_STATE_IDLE;
1085                 }
1086                 /* terminal */
1087                 SCPY(response->am[num].u.e.terminal, apppbx->e_ext.number);
1088                 /* callerid */
1089                 SCPY(response->am[num].u.e.callerid, apppbx->e_callerinfo.id);
1090                 /* dialing */
1091                 SCPY(response->am[num].u.e.dialing, apppbx->e_dialinginfo.id);
1092                 /* action string */
1093                 if (apppbx->e_action)
1094                         SCPY(response->am[num].u.e.action, action_defs[apppbx->e_action->index].name);
1095 //              if (apppbx->e_action)
1096 //              printf("action=%s\n",action_defs[apppbx->e_action->index].name);
1097                 /* park */
1098                 response->am[num].u.e.park = apppbx->ea_endpoint->ep_park;
1099                 if (apppbx->ea_endpoint->ep_park && apppbx->ea_endpoint->ep_park_len && apppbx->ea_endpoint->ep_park_len<=(int)sizeof(response->am[num].u.e.park_callid))
1100                         memcpy(response->am[num].u.e.park_callid, apppbx->ea_endpoint->ep_park_callid, apppbx->ea_endpoint->ep_park_len);
1101                 response->am[num].u.e.park_len = apppbx->ea_endpoint->ep_park_len;
1102                 /* crypt */
1103                 if (apppbx->e_crypt == CRYPT_ON)
1104                         response->am[num].u.e.crypt = 1;
1105                 /* */
1106                 apppbx = apppbx->next;
1107                 num++;
1108         }
1109
1110         /* create response for all ports */
1111         port = port_first;
1112         while(port) {
1113                 /* message */
1114                 response->am[num].message = ADMIN_RESPONSE_S_PORT;
1115                 /* serial */
1116                 response->am[num].u.p.serial = port->p_serial;
1117                 /* name */
1118                 SCPY(response->am[num].u.p.name, port->p_name);
1119                 /* epoint */
1120                 response->am[num].u.p.epoint = ACTIVE_EPOINT(port->p_epointlist);
1121                 /* state */
1122                 switch(port->p_state) {
1123                         case PORT_STATE_IN_SETUP:
1124                         response->am[num].u.p.state = ADMIN_STATE_IN_SETUP;
1125                         break;
1126                         case PORT_STATE_OUT_SETUP:
1127                         response->am[num].u.p.state = ADMIN_STATE_OUT_SETUP;
1128                         break;
1129                         case PORT_STATE_IN_OVERLAP:
1130                         response->am[num].u.p.state = ADMIN_STATE_IN_OVERLAP;
1131                         break;
1132                         case PORT_STATE_OUT_OVERLAP:
1133                         response->am[num].u.p.state = ADMIN_STATE_OUT_OVERLAP;
1134                         break;
1135                         case PORT_STATE_IN_PROCEEDING:
1136                         response->am[num].u.p.state = ADMIN_STATE_IN_PROCEEDING;
1137                         break;
1138                         case PORT_STATE_OUT_PROCEEDING:
1139                         response->am[num].u.p.state = ADMIN_STATE_OUT_PROCEEDING;
1140                         break;
1141                         case PORT_STATE_IN_ALERTING:
1142                         response->am[num].u.p.state = ADMIN_STATE_IN_ALERTING;
1143                         break;
1144                         case PORT_STATE_OUT_ALERTING:
1145                         response->am[num].u.p.state = ADMIN_STATE_OUT_ALERTING;
1146                         break;
1147                         case PORT_STATE_CONNECT:
1148                         response->am[num].u.p.state = ADMIN_STATE_CONNECT;
1149                         break;
1150                         case PORT_STATE_IN_DISCONNECT:
1151                         response->am[num].u.p.state = ADMIN_STATE_IN_DISCONNECT;
1152                         break;
1153                         case PORT_STATE_OUT_DISCONNECT:
1154                         response->am[num].u.p.state = ADMIN_STATE_OUT_DISCONNECT;
1155                         break;
1156                         case PORT_STATE_RELEASE:
1157                         response->am[num].u.p.state = ADMIN_STATE_RELEASE;
1158                         break;
1159                         default:
1160                         response->am[num].u.p.state = ADMIN_STATE_IDLE;
1161                 }
1162                 /* isdn */
1163                 if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_DSS1) {
1164                         response->am[num].u.p.isdn = 1;
1165                         pdss1 = (class Pdss1 *)port;
1166                         response->am[num].u.p.isdn_chan = pdss1->p_m_b_channel;
1167                         response->am[num].u.p.isdn_hold = pdss1->p_m_hold;
1168                         response->am[num].u.p.isdn_ces = pdss1->p_m_d_ces;
1169                 }
1170                 /* */
1171                 port = port->next;
1172                 num++;
1173         }
1174         return(0);
1175 }
1176
1177 int sockserial = 1; // must start with 1, because 0 is used if no serial is set
1178 /*
1179  * handle admin socket (non blocking)
1180  */
1181 int admin_handle_con(struct lcr_fd *fd, unsigned int what, void *instance, int index);
1182
1183 int admin_handle(struct lcr_fd *fd, unsigned int what, void *instance, int index)
1184 {
1185         int                     new_sock;
1186         socklen_t               sock_len = sizeof(sock_address);
1187         struct admin_list       *admin;
1188
1189         /* check for new incoming connections */
1190         if ((new_sock = accept(sock, (struct sockaddr *)&sock_address, &sock_len)) >= 0) {
1191                 /* insert new socket */
1192                 admin = (struct admin_list *)MALLOC(sizeof(struct admin_list));
1193                 memuse++;
1194                 fhuse++;
1195                 admin->sockserial = sockserial++;
1196                 admin->next = admin_first;
1197                 admin_first = admin;
1198                 admin->sock = new_sock;
1199                 admin->fd.fd = new_sock;
1200                 register_fd(&admin->fd, LCR_FD_READ | LCR_FD_EXCEPT, admin_handle_con, admin, 0);
1201         } else {
1202                 if (errno != EWOULDBLOCK) {
1203                         PERROR("Failed to accept connection from socket \"%s\". (errno=%d) Closing socket.\n", sock_address.sun_path, errno);
1204                         admin_cleanup();
1205                         return 0;
1206                 }
1207         }
1208
1209         return 0;
1210 }
1211
1212 int admin_handle_con(struct lcr_fd *fd, unsigned int what, void *instance, int index)
1213 {
1214         struct admin_list *admin = (struct admin_list *)instance;
1215         void                    *temp;
1216         struct admin_message    msg;
1217         int                     len;
1218         struct Endpoint         *epoint;
1219
1220         if ((what & LCR_FD_READ)) {
1221                 /* read command */
1222                 len = read(admin->sock, &msg, sizeof(msg));
1223                 if (len < 0) {
1224                         brokenpipe:
1225                         PDEBUG(DEBUG_LOG, "Broken pipe on socket %d. (errno=%d).\n", admin->sock, errno);
1226                         free_connection(admin);
1227                         return 0;
1228                 }
1229                 if (len == 0) {
1230                         end:
1231
1232                         /*release endpoint if exists */
1233                         if (admin->epointid) {
1234                                 epoint = find_epoint_id(admin->epointid);
1235                                 if (epoint) {
1236                                         ((class DEFAULT_ENDPOINT_APP *)epoint->ep_app)->
1237                                                 release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, 0);
1238                                 }
1239                         }
1240
1241                         free_connection(admin);
1242                         return 0;
1243                 }
1244                 if (len != sizeof(msg)) {
1245                         PERROR("Short/long read on socket %d. (len=%d != size=%d).\n", admin->sock, len, sizeof(msg));
1246                         free_connection(admin);
1247                         return 0;
1248                 }
1249                 /* process socket command */
1250                 if (admin->response && msg.message != ADMIN_MESSAGE) {
1251                         PERROR("Data from socket %d while sending response.\n", admin->sock);
1252                         free_connection(admin);
1253                         return 0;
1254                 }
1255                 switch (msg.message) {
1256                         case ADMIN_REQUEST_CMD_INTERFACE:
1257                         if (admin_interface(&admin->response) < 0) {
1258                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1259                                 goto response_error;
1260                         }
1261                         admin->fd.when |= LCR_FD_WRITE;
1262                         break;
1263
1264                         case ADMIN_REQUEST_CMD_ROUTE:
1265                         if (admin_route(&admin->response) < 0) {
1266                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1267                                 goto response_error;
1268                         }
1269                         admin->fd.when |= LCR_FD_WRITE;
1270                         break;
1271
1272                         case ADMIN_REQUEST_CMD_DIAL:
1273                         if (admin_dial(&admin->response, msg.u.x.message) < 0) {
1274                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1275                                 goto response_error;
1276                         }
1277                         admin->fd.when |= LCR_FD_WRITE;
1278                         break;
1279
1280                         case ADMIN_REQUEST_CMD_RELEASE:
1281                         if (admin_release(&admin->response, msg.u.x.message) < 0) {
1282                                 PERROR("Failed to create release response for socket %d.\n", admin->sock);
1283                                 goto response_error;
1284                         }
1285                         admin->fd.when |= LCR_FD_WRITE;
1286                         break;
1287
1288                         case ADMIN_REQUEST_STATE:
1289                         if (admin_state(&admin->response) < 0) {
1290                                 PERROR("Failed to create state response for socket %d.\n", admin->sock);
1291                                 goto response_error;
1292                         }
1293                         admin->fd.when |= LCR_FD_WRITE;
1294                         break;
1295
1296                         case ADMIN_TRACE_REQUEST:
1297                         if (admin_trace(admin, &msg.u.trace_req) < 0) {
1298                                 PERROR("Failed to create trace response for socket %d.\n", admin->sock);
1299                                 goto response_error;
1300                         }
1301                         admin->fd.when |= LCR_FD_WRITE;
1302                         break;
1303
1304                         case ADMIN_REQUEST_CMD_BLOCK:
1305                         if (admin_block(&admin->response, msg.u.x.portnum, msg.u.x.block) < 0) {
1306                                 PERROR("Failed to create block response for socket %d.\n", admin->sock);
1307                                 goto response_error;
1308                         }
1309                         admin->fd.when |= LCR_FD_WRITE;
1310                         break;
1311
1312                         case ADMIN_MESSAGE:
1313                         if (admin_message_to_lcr(&msg.u.msg, admin) < 0) {
1314                                 PERROR("Failed to deliver message for socket %d.\n", admin->sock);
1315                                 goto response_error;
1316                         }
1317                         break;
1318
1319                         case ADMIN_CALL_SETUP:
1320                         if (admin_call(admin, &msg) < 0) {
1321                                 PERROR("Failed to create call for socket %d.\n", admin->sock);
1322                                 response_error:
1323                                 free_connection(admin);
1324                                 return 0;
1325                         }
1326                         break;
1327
1328                         default:
1329                         PERROR("Invalid message %d from socket %d.\n", msg.message, admin->sock);
1330                         free_connection(admin);
1331                         return 0;
1332                 }
1333         }
1334
1335         if ((what & LCR_FD_WRITE)) {
1336                 /* write queue */
1337                 if (admin->response) {
1338                         len = write(admin->sock, ((unsigned char *)(admin->response->am))+admin->response->offset, sizeof(struct admin_message)*(admin->response->num)-admin->response->offset);
1339                         if (len < 0) {
1340                                 goto brokenpipe;
1341                         }
1342                         if (len == 0)
1343                                 goto end;
1344                         if (len < (int)(sizeof(struct admin_message)*(admin->response->num) - admin->response->offset)) {
1345                                 admin->response->offset+=len;
1346                                 return 0;
1347                         } else {
1348                                 temp = admin->response;
1349                                 admin->response = admin->response->next;
1350                                 FREE(temp, 0);
1351                                 memuse--;
1352                         }
1353                 } else
1354                         admin->fd.when &= ~LCR_FD_WRITE;
1355         }
1356
1357         return 0;
1358 }
1359
1360 void message_bchannel_to_remote(unsigned int remote_id, unsigned int ref, int type, unsigned int handle, int tx_gain, int rx_gain, char *pipeline, unsigned char *crypt, int crypt_len, int crypt_type, int isloopback)
1361 {
1362         union parameter param;
1363
1364         memset(&param, 0, sizeof(union parameter));
1365         param.bchannel.isloopback = isloopback;
1366         param.bchannel.type = type;
1367         param.bchannel.handle = handle;
1368         param.bchannel.tx_gain = tx_gain;
1369         param.bchannel.rx_gain = rx_gain;
1370         if (pipeline)
1371                 SCPY(param.bchannel.pipeline, pipeline);
1372         if (crypt_len)
1373                 memcpy(param.bchannel.crypt, crypt, crypt_len);
1374         param.bchannel.crypt_type = crypt_type;
1375         if (admin_message_from_lcr(remote_id, ref, MESSAGE_BCHANNEL, &param)<0) {
1376                 PERROR("No socket with remote id %d found, this happens, if the socket is closed before all bchannels are imported.\n", remote_id);
1377                 return;
1378         }
1379 }
1380