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
  17
  18 char socket_name[128];
  19 int sock = -1;
  20 struct sockaddr_un sock_address;
  21
  22 struct admin_list *admin_first = NULL;
  23
  24 /*
  25  * initialize admin socket
  26  */
  27 int admin_init(void)
  28 {
  29         unsigned int on = 1;
  30
  31         /* open and bind socket */
  32         if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
  33         {
  34                 PERROR("Failed to create admin socket. (errno=%d)\n", errno);
  35                 return(-1);
  36         }
  37         fhuse++;
  38         memset(&sock_address, 0, sizeof(sock_address));
  39         SPRINT(socket_name, SOCKET_NAME, options.lock);
  40         sock_address.sun_family = AF_UNIX;
  41         UCPY(sock_address.sun_path, socket_name);
  42         unlink(socket_name);
  43         if (bind(sock, (struct sockaddr *)(&sock_address), SUN_LEN(&sock_address)) < 0)
  44         {
  45                 close(sock);
  46                 unlink(socket_name);
  47                 fhuse--;
  48                 sock = -1;
  49                 PERROR("Failed to bind admin socket to \"%s\". (errno=%d)\n", sock_address.sun_path, errno);
  50                 return(-1);
  51         }
  52         if (listen(sock, 5) < 0)
  53         {
  54                 close(sock);
  55                 unlink(socket_name);
  56                 fhuse--;
  57                 sock = -1;
  58                 PERROR("Failed to listen to socket \"%s\". (errno=%d)\n", sock_address.sun_path, errno);
  59                 return(-1);
  60         }
  61         if (ioctl(sock, FIONBIO, (unsigned char *)(&on)) < 0)
  62         {
  63                 close(sock);
  64                 unlink(socket_name);
  65                 fhuse--;
  66                 sock = -1;
  67                 PERROR("Failed to set socket \"%s\" into non-blocking mode. (errno=%d)\n", sock_address.sun_path, errno);
  68                 return(-1);
  69         }
  70         if (chmod(socket_name, options.socketrights) < 0)
  71         {
  72                 PERROR("Failed to change socket rigts to %d. (errno=%d)\n", options.socketrights, errno);
  73         }
  74         return(0);
  75 }
  76
  77
  78 /*
  79  * free connection
  80  * also releases all remote joins
  81  */
  82 void free_connection(struct admin_list *admin)
  83 {
  84         struct admin_queue *response;
  85         void *temp;
  86         union parameter param;
  87         class Join *join, *joinnext;
  88         struct mISDNport *mISDNport;
  89         int i, ii;
  90
  91         /* free remote joins */
  92         if (admin->remote_name[0])
  93         {
  94                 start_trace(0,
  95                         NULL,
  96                         NULL,
  97                         NULL,
  98                         DIRECTION_NONE,
  99                         0,
 100                         0,
 101                         "REMOTE APP release");
 102                 add_trace("app", "name", "%s", admin->remote_name);
 103                 end_trace();
 104                 /* release all exported channels */
 105                 mISDNport = mISDNport_first;
 106                 while(mISDNport)
 107                 {
 108                         i = 0;
 109                         ii = mISDNport->b_num;
 110                         while(i < ii)
 111                         {
 112                                 if (mISDNport->b_remote_id[i] == admin->sock)
 113                                 {
 114                                         mISDNport->b_state[i] = B_STATE_IDLE;
 115                                         mISDNport->b_timer[i] = 0;
 116                                         mISDNport->b_remote_id[i] = 0;
 117                                         mISDNport->b_remote_ref[i] = 0;
 118                                 }
 119                                 i++;
 120                         }
 121                         mISDNport = mISDNport->next;
 122                 }
 123                 /* release join */
 124                 join = join_first;
 125                 while(join)
 126                 {
 127                         joinnext = join->next;
 128                         if (join->j_type==JOIN_TYPE_REMOTE) if (((class JoinRemote *)join)->j_remote_id == admin->sock)
 129                         {
 130                                 memset(&param, 0, sizeof(param));
 131                                 param.disconnectinfo.cause = CAUSE_OUTOFORDER;
 132                                 param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 133                                 ((class JoinRemote *)join)->message_remote(MESSAGE_RELEASE, &param);
 134                                 /* join is now destroyed, so we go to next join */
 135                         }
 136                         join = joinnext;
 137                 }
 138         }
 139
 140         if (admin->sock >= 0)
 141         {
 142                 close(admin->sock);
 143                 fhuse--;
 144         }
 145 //      printf("new\n", response);
 146         response = admin->response;
 147         while (response)
 148         {
 149 //#warning
 150 //      printf("%x\n", response);
 151                 temp = response->next;
 152                 FREE(response, 0);
 153                 memuse--;
 154                 response = (struct admin_queue *)temp;
 155         }
 156 //      printf("new2\n", response);
 157         FREE(admin, 0);
 158 //      printf("new3\n", response);
 159         memuse--;
 160 }
 161
 162
 163 /*
 164  * cleanup admin socket
 165  */
 166 void admin_cleanup(void)
 167 {
 168         struct admin_list *admin, *next;;
 169
 170         admin = admin_first;
 171         while(admin)
 172         {
 173 //printf("clean\n");
 174                 next = admin->next;
 175                 free_connection(admin);
 176                 admin = next;
 177         }
 178
 179         if (sock >= 0)
 180         {
 181                 close(sock);
 182                 fhuse--;
 183         }
 184
 185         unlink(socket_name);
 186 }
 187
 188
 189 /*
 190  * do interface reload
 191  */
 192 int admin_interface(struct admin_queue **responsep)
 193 {
 194         struct admin_queue      *response;      /* response pointer */
 195         char                    *err_txt = "";
 196         int                     err = 0;
 197
 198         if (read_interfaces())
 199         {
 200                 relink_interfaces();
 201                 free_interfaces(interface_first);
 202                 interface_first = interface_newlist;
 203                 interface_newlist = NULL;
 204         } else
 205         {
 206                 err_txt = interface_error;
 207                 err = -1;
 208         }
 209         /* create state response */
 210         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 211         memuse++;
 212         response->num = 1;
 213         /* message */
 214         response->am[0].message = ADMIN_RESPONSE_CMD_INTERFACE;
 215         /* error */
 216         response->am[0].u.x.error = err;
 217         /* message */
 218         SCPY(response->am[0].u.x.message, err_txt);
 219         /* attach to response chain */
 220         *responsep = response;
 221         responsep = &response->next;
 222
 223         return(0);
 224 }
 225
 226
 227 /*
 228  * do route reload
 229  */
 230 int admin_route(struct admin_queue **responsep)
 231 {
 232         struct route_ruleset    *ruleset_new;
 233         struct admin_queue      *response;      /* response pointer */
 234         char                    err_txt[256] = "";
 235         int                     err = 0;
 236 #if 0
 237         int                     n;
 238 #endif
 239         class EndpointAppPBX    *apppbx;
 240
 241 #if 0
 242         n = 0;
 243         apppbx = apppbx_first;
 244         while(apppbx)
 245         {
 246                 n++;
 247                 apppbx = apppbx->next;
 248         }
 249         if (apppbx_first)
 250         {
 251                 SPRINT(err_txt, "Cannot reload routing, because %d endpoints active\n", n);
 252                 err = -1;
 253                 goto response;
 254         }
 255 #endif
 256         if (!(ruleset_new = ruleset_parse()))
 257         {
 258                 SPRINT(err_txt, ruleset_error);
 259                 err = -1;
 260                 goto response;
 261         }
 262         ruleset_free(ruleset_first);
 263         ruleset_first = ruleset_new;
 264         ruleset_main = getrulesetbyname("main");
 265         if (!ruleset_main)
 266         {
 267                 SPRINT(err_txt, "Ruleset reloaded, but rule 'main' not found.\n");
 268                 err = -1;
 269         }
 270         apppbx = apppbx_first;
 271         while(apppbx)
 272         {
 273                 if (apppbx->e_action)
 274                 {
 275                         switch(apppbx->e_action->index)
 276                         {
 277                                 case ACTION_INTERNAL:
 278                                 apppbx->e_action = &action_internal;
 279                                 break;
 280                                 case ACTION_EXTERNAL:
 281                                 apppbx->e_action = &action_external;
 282                                 break;
 283                                 case ACTION_REMOTE:
 284                                 apppbx->e_action = &action_remote;
 285                                 break;
 286                                 case ACTION_VBOX_RECORD:
 287                                 apppbx->e_action = &action_vbox;
 288                                 break;
 289                                 case ACTION_PARTYLINE:
 290                                 apppbx->e_action = &action_partyline;
 291                                 break;
 292                                 default:
 293                                 goto release;
 294                         }
 295                 } else if (apppbx->e_state != EPOINT_STATE_CONNECT)
 296                 {
 297                         release:
 298                         apppbx->e_callback = 0;
 299                         apppbx->e_action = NULL;
 300                         apppbx->release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL);
 301                         start_trace(0,
 302                                 NULL,
 303                                 numberrize_callerinfo(apppbx->e_callerinfo.id, apppbx->e_callerinfo.ntype, options.national, options.international),
 304                                 apppbx->e_dialinginfo.id,
 305                                 DIRECTION_NONE,
 306                                 CATEGORY_EP,
 307                                 apppbx->ea_endpoint->ep_serial,
 308                                 "KICK (reload routing)");
 309                         end_trace();
 310                 }
 311
 312                 apppbx->e_action_timeout = 0;
 313                 apppbx->e_rule = NULL;
 314                 apppbx->e_ruleset = NULL;
 315
 316                 apppbx = apppbx->next;
 317         }
 318
 319         response:
 320         /* create state response */
 321         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 322         memuse++;
 323         response->num = 1;
 324         /* message */
 325         response->am[0].message = ADMIN_RESPONSE_CMD_ROUTE;
 326         /* error */
 327         response->am[0].u.x.error = err;
 328         /* message */
 329         SCPY(response->am[0].u.x.message, err_txt);
 330         /* attach to response chain */
 331         *responsep = response;
 332         responsep = &response->next;
 333
 334         return(0);
 335 }
 336
 337
 338 /*
 339  * do dialing
 340  */
 341 int admin_dial(struct admin_queue **responsep, char *message)
 342 {
 343         struct extension        ext;            /* temporary extension's settings */
 344         struct admin_queue      *response;      /* response pointer */
 345         char                    *p;             /* pointer to dialing digits */
 346
 347         /* create state response */
 348         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 349         memuse++;
 350         response->num = 1;
 351         /* message */
 352         response->am[0].message = ADMIN_RESPONSE_CMD_DIAL;
 353
 354         /* process request */
 355         if (!(p = strchr(message,':')))
 356         {
 357                 response->am[0].u.x.error = -EINVAL;
 358                 SPRINT(response->am[0].u.x.message, "no seperator ':' in message to seperate number from extension");
 359                 goto out;
 360         }
 361         *p++ = 0;
 362
 363         /* modify extension */
 364         if (!read_extension(&ext, message))
 365         {
 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         interface = interface_first;
 419         while(interface)
 420         {
 421                 ifport = interface->ifport;
 422                 while(ifport)
 423                 {
 424                         if (ifport->portnum == portnum)
 425                                 break;
 426                         ifport = ifport->next;
 427                 }
 428                 if (ifport)
 429                         break;
 430                 interface = interface->next;
 431         }
 432         /* not found, we return -1 */
 433         if (!ifport)
 434         {
 435                 response->am[0].u.x.block = -1;
 436                 response->am[0].u.x.error = 1;
 437                 SPRINT(response->am[0].u.x.message, "Port %d does not exist.", portnum);
 438                 goto out;
 439         }
 440
 441         /* no interface */
 442         if (!ifport->mISDNport)
 443         {
 444                 /* not loaded anyway */
 445                 if (block >= 2)
 446                 {
 447                         response->am[0].u.x.block = 2;
 448                         goto out;
 449                 }
 450
 451                 /* try loading interface */
 452                 ifport->block = block;
 453                 load_port(ifport);
 454
 455                 /* port cannot load */
 456                 if (ifport->block >= 2)
 457                 {
 458                         response->am[0].u.x.block = 2;
 459                         response->am[0].u.x.error = 1;
 460                         SPRINT(response->am[0].u.x.message, "Port %d will not load.", portnum);
 461                         goto out;
 462                 }
 463
 464                 /* port loaded */
 465                 response->am[0].u.x.block = ifport->block;
 466                 goto out;
 467         }
 468
 469         /* if we shall unload interface */
 470         if (block >= 2)
 471         {
 472                 mISDNport_close(ifport->mISDNport);
 473                 ifport->mISDNport = 0;
 474                 ifport->block = 2;
 475                 goto out;
 476         }
 477
 478         /* port new blocking state */
 479         ifport->block = response->am[0].u.x.block = block;
 480
 481         out:
 482         /* attach to response chain */
 483         *responsep = response;
 484         responsep = &response->next;
 485         return(0);
 486 }
 487
 488
 489 /*
 490  * do release
 491  */
 492 int admin_release(struct admin_queue **responsep, char *message)
 493 {
 494         unsigned int            id;
 495         struct admin_queue      *response;      /* response pointer */
 496         class EndpointAppPBX    *apppbx;
 497
 498         /* create state response */
 499         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 500         memuse++;
 501         response->num = 1;
 502         /* message */
 503         response->am[0].message = ADMIN_RESPONSE_CMD_RELEASE;
 504
 505         id = atoi(message);
 506         apppbx = apppbx_first;
 507         while(apppbx)
 508         {
 509                 if (apppbx->ea_endpoint->ep_serial == id)
 510                         break;
 511                 apppbx = apppbx->next;
 512         }
 513         if (!apppbx)
 514         {
 515                 response->am[0].u.x.error = -EINVAL;
 516                 SPRINT(response->am[0].u.x.message, "Given endpoint %d doesn't exist.", id);
 517                 goto out;
 518         }
 519
 520         apppbx->e_callback = 0;
 521         apppbx->release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL);
 522
 523         out:
 524         /* attach to response chain */
 525         *responsep = response;
 526         responsep = &response->next;
 527         return(0);
 528 }
 529
 530
 531 /*
 532  * do call
 533  */
 534 int admin_call(struct admin_list *admin, struct admin_message *msg)
 535 {
 536         class Endpoint          *epoint;
 537         class EndpointAppPBX    *apppbx;
 538
 539         if (!(epoint = new Endpoint(0, 0)))
 540                 FATAL("No memory for Endpoint instance\n");
 541         if (!(epoint->ep_app = apppbx = new DEFAULT_ENDPOINT_APP(epoint, 1))) // outgoing
 542                 FATAL("No memory for Endpoint Application instance\n");
 543         apppbx->e_adminid = admin->sockserial;
 544         admin->epointid = epoint->ep_serial;
 545         SCPY(apppbx->e_callerinfo.id, nationalize_callerinfo(msg->u.call.callerid, &apppbx->e_callerinfo.ntype, options.national, options.international));
 546         if (msg->u.call.present)
 547                 apppbx->e_callerinfo.present = INFO_PRESENT_ALLOWED;
 548         else
 549                 apppbx->e_callerinfo.present = INFO_PRESENT_RESTRICTED;
 550         apppbx->e_callerinfo.screen = INFO_SCREEN_NETWORK;
 551
 552 //printf("hh=%d\n", apppbx->e_capainfo.hlc);
 553
 554         apppbx->e_capainfo.bearer_capa = msg->u.call.bc_capa;
 555         apppbx->e_capainfo.bearer_mode = msg->u.call.bc_mode;
 556         apppbx->e_capainfo.bearer_info1 = msg->u.call.bc_info1;
 557         apppbx->e_capainfo.hlc = msg->u.call.hlc;
 558         apppbx->e_capainfo.exthlc = msg->u.call.exthlc;
 559         SCPY(apppbx->e_dialinginfo.id, msg->u.call.dialing);
 560         SCPY(apppbx->e_dialinginfo.interfaces, msg->u.call.interface);
 561         apppbx->e_dialinginfo.sending_complete = 1;
 562
 563         apppbx->new_state(PORT_STATE_OUT_SETUP);
 564         apppbx->out_setup();
 565         return(0);
 566 }
 567
 568
 569 /*
 570  * this function is called for response whenever a call state changes.
 571  */
 572 void admin_call_response(int adminid, int message, char *connected, int cause, int location, int notify)
 573 {
 574         struct admin_list       *admin;
 575         struct admin_queue      *response, **responsep; /* response pointer */
 576
 577         /* searching for admin id
 578          * maybe there is no admin instance, because the calling port was not
 579          * initiated by admin_call */
 580         admin = admin_first;
 581         while(admin)
 582         {
 583                 if (adminid == admin->sockserial)
 584                         break;
 585                 admin = admin->next;
 586         }
 587         if (!admin)
 588                 return;
 589
 590         /* seek to end of response list */
 591         response = admin->response;
 592         responsep = &admin->response;
 593         while(response)
 594         {
 595                 responsep = &response->next;
 596                 response = response->next;
 597         }
 598
 599         /* create state response */
 600         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 601         memuse++;
 602         response->num = 1;
 603         /* message */
 604         response->am[0].message = message;
 605 //      printf("MESSAGE: %d\n", message);
 606
 607         SCPY(response->am[0].u.call.callerid, connected);
 608         response->am[0].u.call.cause = cause;
 609         response->am[0].u.call.location = location;
 610         response->am[0].u.call.notify = notify;
 611
 612         /* attach to response chain */
 613         *responsep = response;
 614         responsep = &response->next;
 615 }
 616
 617
 618 /*
 619  * send data to the remote socket join instance
 620  */
 621 int admin_message_to_join(struct admin_msg *msg, struct admin_list *admin)
 622 {
 623         class Join                      *join;
 624         struct admin_list               *temp;
 625
 626         /* hello message */
 627         if (msg->type == MESSAGE_HELLO)
 628         {
 629                 if (admin->remote_name[0])
 630                 {
 631                         PERROR("Remote application repeats hello message.\n");
 632                         return(-1);
 633                 }
 634                 /* look for second application */
 635                 temp = admin_first;
 636                 while(temp)
 637                 {
 638                         if (!strcmp(temp->remote_name, msg->param.hello.application))
 639                                 break;
 640                         temp = temp->next;
 641                 }
 642                 if (temp)
 643                 {
 644                         PERROR("Remote application connects twice??? (ignoring)\n");
 645                         return(-1);
 646                 }
 647                 /* set remote socket instance */
 648                 SCPY(admin->remote_name, msg->param.hello.application);
 649                 start_trace(0,
 650                         NULL,
 651                         NULL,
 652                         NULL,
 653                         DIRECTION_NONE,
 654                         0,
 655                         0,
 656                         "REMOTE APP registers");
 657                 add_trace("app", "name", "%s", admin->remote_name);
 658                 end_trace();
 659                 return(0);
 660         }
 661
 662         /* check we have no application name */
 663         if (!admin->remote_name[0])
 664         {
 665                 PERROR("Remote application did not send us a hello message.\n");
 666                 return(-1);
 667         }
 668
 669         /* new join */
 670         if (msg->type == MESSAGE_NEWREF)
 671         {
 672                 /* create new join instance */
 673                 join = new JoinRemote(0, admin->remote_name, admin->sock); // must have no serial, because no endpoint is connected
 674                 if (!join)
 675                 {
 676                         FATAL("No memory for remote join instance\n");
 677                         return(-1);
 678                 }
 679                 return(0);
 680         }
 681
 682         /* bchannel message
 683          * no ref given for *_ack */
 684         if (msg->type == MESSAGE_BCHANNEL)
 685         if (msg->param.bchannel.type == BCHANNEL_ASSIGN_ACK
 686          || msg->param.bchannel.type == BCHANNEL_REMOVE_ACK
 687          || msg->param.bchannel.type == BCHANNEL_RELEASE)
 688         {
 689                 /* no ref, but address */
 690                 message_bchannel_from_remote(NULL, msg->param.bchannel.type, msg->param.bchannel.handle);
 691                 return(0);
 692         }
 693
 694         /* check for ref */
 695         if (!msg->ref)
 696         {
 697                 PERROR("Remote application did not send us a valid ref with a message.\n");
 698                 return(-1);
 699         }
 700
 701         /* find join instance */
 702         join = join_first;
 703         while(join)
 704         {
 705                 if (join->j_serial == msg->ref)
 706                         break;
 707                 join = join->next;
 708         }
 709         if (!join)
 710         {
 711                 PDEBUG(DEBUG_LOG, "No join found with serial %d. (May have been already released.)\n", msg->ref);
 712                 return(0);
 713         }
 714
 715         /* check application */
 716         if (join->j_type != JOIN_TYPE_REMOTE)
 717         {
 718                 PERROR("Ref %d does not belong to a remote join instance.\n", msg->ref);
 719                 return(-1);
 720         }
 721         if (admin->sock != ((class JoinRemote *)join)->j_remote_id)
 722         {
 723                 PERROR("Ref %d belongs to remote application %s, but not to sending application %s.\n", msg->ref, ((class JoinRemote *)join)->j_remote_name, admin->remote_name);
 724                 return(-1);
 725         }
 726
 727         /* send message */
 728         ((class JoinRemote *)join)->message_remote(msg->type, &msg->param);
 729
 730         return(0);
 731 }
 732
 733
 734 /*
 735  * this function is called for every message to remote socket
 736  */
 737 int admin_message_from_join(int remote_id, unsigned int ref, int message_type, union parameter *param)
 738 {
 739         struct admin_list       *admin;
 740         struct admin_queue      **responsep;    /* response pointer */
 741
 742         /* searching for admin id
 743          * maybe there is no given remote application
 744          */
 745         admin = admin_first;
 746         while(admin)
 747         {
 748                 if (admin->remote_name[0] && admin->sock==remote_id)
 749                         break;
 750                 admin = admin->next;
 751         }
 752         /* no given remote application connected */
 753         if (!admin)
 754                 return(-1);
 755
 756         /* seek to end of response list */
 757         responsep = &admin->response;
 758         while(*responsep)
 759         {
 760                 responsep = &(*responsep)->next;
 761         }
 762
 763         /* create state response */
 764         *responsep = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 765         memuse++;
 766         (*responsep)->num = 1;
 767
 768         /* message */
 769         (*responsep)->am[0].message = ADMIN_MESSAGE;
 770         (*responsep)->am[0].u.msg.type = message_type;
 771         (*responsep)->am[0].u.msg.ref = ref;
 772         memcpy(&(*responsep)->am[0].u.msg.param, param, sizeof(union parameter));
 773
 774         return(0);
 775 }
 776
 777
 778 /*
 779  * do state debugging
 780  */
 781 int admin_state(struct admin_queue **responsep)
 782 {
 783
 784         class Port              *port;
 785         class EndpointAppPBX    *apppbx;
 786         class Join              *join;
 787         class Pdss1             *pdss1;
 788         struct interface        *interface;
 789         struct interface_port   *ifport;
 790         struct mISDNport        *mISDNport;
 791         int                     i;
 792         int                     num;
 793         int                     anybusy;
 794         struct admin_queue      *response;
 795         struct admin_list       *admin;
 796
 797         /* create state response */
 798         response = (struct admin_queue *)MALLOC(sizeof(struct admin_queue)+sizeof(admin_message));
 799         memuse++;
 800         response->num = 1;
 801         /* message */
 802         response->am[0].message = ADMIN_RESPONSE_STATE;
 803         /* version */
 804         SCPY(response->am[0].u.s.version_string, VERSION_STRING);
 805         /* time */
 806         memcpy(&response->am[0].u.s.tm, now_tm, sizeof(struct tm));
 807         /* log file */
 808         SCPY(response->am[0].u.s.logfile, options.log);
 809         /* interface count */
 810         i = 0;
 811         interface = interface_first;
 812         while(interface)
 813         {
 814                 ifport = interface->ifport;
 815                 while(ifport)
 816                 {
 817                         i++;
 818                         ifport = ifport->next;
 819                 }
 820                 interface = interface->next;
 821         }
 822         response->am[0].u.s.interfaces = i;
 823         /* remote connection count */
 824         i = 0;
 825         admin = admin_first;
 826         while(admin)
 827         {
 828                 if (admin->remote_name[0])
 829                         i++;
 830                 admin = admin->next;
 831         }
 832         response->am[0].u.s.remotes = i;
 833         /* join count */
 834         join = join_first;
 835         i = 0;
 836         while(join)
 837         {
 838                 i++;
 839                 join = join->next;
 840         }
 841         response->am[0].u.s.joins = i;
 842         /* apppbx count */
 843         apppbx = apppbx_first;
 844         i = 0;
 845         while(apppbx)
 846         {
 847                 i++;
 848                 apppbx = apppbx->next;
 849         }
 850         response->am[0].u.s.epoints = i;
 851         /* port count */
 852         i = 0;
 853         port = port_first;
 854         while(port)
 855         {
 856                 i++;
 857                 port = port->next;
 858         }
 859         response->am[0].u.s.ports = i;
 860         /* attach to response chain */
 861         *responsep = response;
 862         responsep = &response->next;
 863
 864         /* create response for all instances */
 865         num = (response->am[0].u.s.interfaces)
 866             + (response->am[0].u.s.remotes)
 867             + (response->am[0].u.s.joins)
 868             + (response->am[0].u.s.epoints)
 869             + (response->am[0].u.s.ports);
 870         if (num == 0)
 871                 return(0);
 872         response = (struct admin_queue *)MALLOC(sizeof(admin_queue)+(num*sizeof(admin_message)));
 873         memuse++;
 874         response->num = num;
 875         *responsep = response;
 876         responsep = &response->next;
 877         interface = interface_first;
 878         num = 0;
 879         while(interface)
 880         {
 881                 ifport = interface->ifport;
 882                 while(ifport)
 883                 {
 884                         /* message */
 885                         response->am[num].message = ADMIN_RESPONSE_S_INTERFACE;
 886                         /* interface */
 887                         SCPY(response->am[num].u.i.interface_name, interface->name);
 888                         /* portnum */
 889                         response->am[num].u.i.portnum = ifport->portnum;
 890                         /* iftype */
 891                         response->am[num].u.i.extension = interface->extension;
 892                         /* block */
 893                         response->am[num].u.i.block = ifport->block;
 894                         if (ifport->mISDNport)
 895                         {
 896                                 mISDNport = ifport->mISDNport;
 897
 898                                 /* ptp */
 899                                 response->am[num].u.i.ptp = mISDNport->ptp;
 900                                 /* ntmode */
 901                                 response->am[num].u.i.ntmode = mISDNport->ntmode;
 902                                 /* pri */
 903                                 response->am[num].u.i.pri = mISDNport->pri;
 904                                 /* use */
 905                                 response->am[num].u.i.use = mISDNport->use;
 906                                 /* l1link */
 907                                 response->am[num].u.i.l1link = mISDNport->l1link;
 908                                 /* l2link */
 909                                 response->am[num].u.i.l2link = mISDNport->l2link;
 910                                 /* los */
 911                                 response->am[num].u.i.los = mISDNport->los;
 912                                 /* ais */
 913                                 response->am[num].u.i.ais = mISDNport->ais;
 914                                 /* rdi */
 915                                 response->am[num].u.i.rdi = mISDNport->rdi;
 916                                 /* slip */
 917                                 response->am[num].u.i.slip_tx = mISDNport->slip_tx;
 918                                 response->am[num].u.i.slip_rx = mISDNport->slip_rx;
 919                                 /* channels */
 920                                 response->am[num].u.i.channels = mISDNport->b_num;
 921                                 /* channel info */
 922                                 i = 0;
 923                                 anybusy = 0;
 924                                 while(i < mISDNport->b_num)
 925                                 {
 926                                         response->am[num].u.i.busy[i] = mISDNport->b_state[i];
 927                                         if (mISDNport->b_port[i])
 928                                                 response->am[num].u.i.port[i] = mISDNport->b_port[i]->p_serial;
 929                                         response->am[num].u.i.mode[i] = mISDNport->b_mode[i];
 930                                         i++;
 931                                 }
 932                         }
 933                         num++;
 934
 935                         ifport = ifport->next;
 936                 }
 937                 interface = interface->next;
 938         }
 939
 940         /* create response for all remotes */
 941         admin = admin_first;
 942         while(admin)
 943         {
 944                 if (admin->remote_name[0])
 945                 {
 946                         /* message */
 947                         response->am[num].message = ADMIN_RESPONSE_S_REMOTE;
 948                         /* name */
 949                         SCPY(response->am[num].u.r.name, admin->remote_name);
 950                         /* */
 951                         num++;
 952                 }
 953                 admin = admin->next;
 954         }
 955
 956         /* create response for all joins */
 957         join = join_first;
 958         while(join)
 959         {
 960                 /* message */
 961                 response->am[num].message = ADMIN_RESPONSE_S_JOIN;
 962                 /* serial */
 963                 response->am[num].u.j.serial = join->j_serial;
 964                 /* partyline */
 965                 if (join->j_type == JOIN_TYPE_PBX)
 966                         response->am[num].u.j.partyline = ((class JoinPBX *)join)->j_partyline;
 967                 /* remote application */
 968                 if (join->j_type == JOIN_TYPE_REMOTE)
 969                         SCPY(response->am[num].u.j.remote, ((class JoinRemote *)join)->j_remote_name);
 970                 /* */
 971                 join = join->next;
 972                 num++;
 973         }
 974
 975         /* create response for all endpoint */
 976         apppbx = apppbx_first;
 977         while(apppbx)
 978         {
 979                 /* message */
 980                 response->am[num].message = ADMIN_RESPONSE_S_EPOINT;
 981                 /* serial */
 982                 response->am[num].u.e.serial = apppbx->ea_endpoint->ep_serial;
 983                 /* join */
 984                 response->am[num].u.e.join = apppbx->ea_endpoint->ep_join_id;
 985                 /* rx notification */
 986                 response->am[num].u.e.rx_state = apppbx->e_rx_state;
 987                 /* tx notification */
 988                 response->am[num].u.e.tx_state = apppbx->e_tx_state;
 989                 /* state */
 990                 switch(apppbx->e_state)
 991                 {
 992                         case EPOINT_STATE_IN_SETUP:
 993                         response->am[num].u.e.state = ADMIN_STATE_IN_SETUP;
 994                         break;
 995                         case EPOINT_STATE_OUT_SETUP:
 996                         response->am[num].u.e.state = ADMIN_STATE_OUT_SETUP;
 997                         break;
 998                         case EPOINT_STATE_IN_OVERLAP:
 999                         response->am[num].u.e.state = ADMIN_STATE_IN_OVERLAP;
1000                         break;
1001                         case EPOINT_STATE_OUT_OVERLAP:
1002                         response->am[num].u.e.state = ADMIN_STATE_OUT_OVERLAP;
1003                         break;
1004                         case EPOINT_STATE_IN_PROCEEDING:
1005                         response->am[num].u.e.state = ADMIN_STATE_IN_PROCEEDING;
1006                         break;
1007                         case EPOINT_STATE_OUT_PROCEEDING:
1008                         response->am[num].u.e.state = ADMIN_STATE_OUT_PROCEEDING;
1009                         break;
1010                         case EPOINT_STATE_IN_ALERTING:
1011                         response->am[num].u.e.state = ADMIN_STATE_IN_ALERTING;
1012                         break;
1013                         case EPOINT_STATE_OUT_ALERTING:
1014                         response->am[num].u.e.state = ADMIN_STATE_OUT_ALERTING;
1015                         break;
1016                         case EPOINT_STATE_CONNECT:
1017                         response->am[num].u.e.state = ADMIN_STATE_CONNECT;
1018                         break;
1019                         case EPOINT_STATE_IN_DISCONNECT:
1020                         response->am[num].u.e.state = ADMIN_STATE_IN_DISCONNECT;
1021                         break;
1022                         case EPOINT_STATE_OUT_DISCONNECT:
1023                         response->am[num].u.e.state = ADMIN_STATE_OUT_DISCONNECT;
1024                         break;
1025                         default:
1026                         response->am[num].u.e.state = ADMIN_STATE_IDLE;
1027                 }
1028                 /* terminal */
1029                 SCPY(response->am[num].u.e.terminal, apppbx->e_ext.number);
1030                 /* callerid */
1031                 SCPY(response->am[num].u.e.callerid, apppbx->e_callerinfo.id);
1032                 /* dialing */
1033                 SCPY(response->am[num].u.e.dialing, apppbx->e_dialinginfo.id);
1034                 /* action string */
1035                 if (apppbx->e_action)
1036                         SCPY(response->am[num].u.e.action, action_defs[apppbx->e_action->index].name);
1037 //              if (apppbx->e_action)
1038 //              printf("action=%s\n",action_defs[apppbx->e_action->index].name);
1039                 /* park */
1040                 response->am[num].u.e.park = apppbx->ea_endpoint->ep_park;
1041                 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))
1042                         memcpy(response->am[num].u.e.park_callid, apppbx->ea_endpoint->ep_park_callid, apppbx->ea_endpoint->ep_park_len);
1043                 response->am[num].u.e.park_len = apppbx->ea_endpoint->ep_park_len;
1044                 /* crypt */
1045                 if (apppbx->e_crypt == CRYPT_ON)
1046                         response->am[num].u.e.crypt = 1;
1047                 /* */
1048                 apppbx = apppbx->next;
1049                 num++;
1050         }
1051
1052         /* create response for all ports */
1053         port = port_first;
1054         while(port)
1055         {
1056                 /* message */
1057                 response->am[num].message = ADMIN_RESPONSE_S_PORT;
1058                 /* serial */
1059                 response->am[num].u.p.serial = port->p_serial;
1060                 /* name */
1061                 SCPY(response->am[num].u.p.name, port->p_name);
1062                 /* epoint */
1063                 response->am[num].u.p.epoint = ACTIVE_EPOINT(port->p_epointlist);
1064                 /* state */
1065                 switch(port->p_state)
1066                 {
1067                         case PORT_STATE_IN_SETUP:
1068                         response->am[num].u.p.state = ADMIN_STATE_IN_SETUP;
1069                         break;
1070                         case PORT_STATE_OUT_SETUP:
1071                         response->am[num].u.p.state = ADMIN_STATE_OUT_SETUP;
1072                         break;
1073                         case PORT_STATE_IN_OVERLAP:
1074                         response->am[num].u.p.state = ADMIN_STATE_IN_OVERLAP;
1075                         break;
1076                         case PORT_STATE_OUT_OVERLAP:
1077                         response->am[num].u.p.state = ADMIN_STATE_OUT_OVERLAP;
1078                         break;
1079                         case PORT_STATE_IN_PROCEEDING:
1080                         response->am[num].u.p.state = ADMIN_STATE_IN_PROCEEDING;
1081                         break;
1082                         case PORT_STATE_OUT_PROCEEDING:
1083                         response->am[num].u.p.state = ADMIN_STATE_OUT_PROCEEDING;
1084                         break;
1085                         case PORT_STATE_IN_ALERTING:
1086                         response->am[num].u.p.state = ADMIN_STATE_IN_ALERTING;
1087                         break;
1088                         case PORT_STATE_OUT_ALERTING:
1089                         response->am[num].u.p.state = ADMIN_STATE_OUT_ALERTING;
1090                         break;
1091                         case PORT_STATE_CONNECT:
1092                         response->am[num].u.p.state = ADMIN_STATE_CONNECT;
1093                         break;
1094                         case PORT_STATE_IN_DISCONNECT:
1095                         response->am[num].u.p.state = ADMIN_STATE_IN_DISCONNECT;
1096                         break;
1097                         case PORT_STATE_OUT_DISCONNECT:
1098                         response->am[num].u.p.state = ADMIN_STATE_OUT_DISCONNECT;
1099                         break;
1100                         default:
1101                         response->am[num].u.p.state = ADMIN_STATE_IDLE;
1102                 }
1103                 /* isdn */
1104                 if ((port->p_type&PORT_CLASS_mISDN_MASK) == PORT_CLASS_mISDN_DSS1)
1105                 {
1106                         response->am[num].u.p.isdn = 1;
1107                         pdss1 = (class Pdss1 *)port;
1108                         response->am[num].u.p.isdn_chan = pdss1->p_m_b_channel;
1109                         response->am[num].u.p.isdn_hold = pdss1->p_m_hold;
1110                         response->am[num].u.p.isdn_ces = pdss1->p_m_d_ces;
1111                 }
1112                 /* */
1113                 port = port->next;
1114                 num++;
1115         }
1116         return(0);
1117 }
1118
1119 int sockserial = 1; // must start with 1, because 0 is used if no serial is set
1120 /*
1121  * handle admin socket (non blocking)
1122  */
1123 int admin_handle(void)
1124 {
1125         struct admin_list       *admin, **adminp;
1126         void                    *temp;
1127         struct admin_message    msg;
1128         int                     len;
1129         int                     new_sock;
1130         socklen_t               sock_len = sizeof(sock_address);
1131         unsigned int            on = 1;
1132         int                     work = 0; /* if work was done */
1133         struct Endpoint         *epoint;
1134
1135         if (sock < 0)
1136                 return(0);
1137
1138         /* check for new incoming connections */
1139         if ((new_sock = accept(sock, (struct sockaddr *)&sock_address, &sock_len)) >= 0)
1140         {
1141                 work = 1;
1142                 /* insert new socket */
1143                 admin = (struct admin_list *)MALLOC(sizeof(struct admin_list));
1144                 if (ioctl(new_sock, FIONBIO, (unsigned char *)(&on)) >= 0)
1145                 {
1146 //#warning
1147 //      PERROR("DEBUG incoming socket %d, serial=%d\n", new_sock, sockserial);
1148                         memuse++;
1149                         fhuse++;
1150                         admin->sockserial = sockserial++;
1151                         admin->next = admin_first;
1152                         admin_first = admin;
1153                         admin->sock = new_sock;
1154                 } else {
1155                         close(new_sock);
1156                         FREE(admin, sizeof(struct admin_list));
1157                 }
1158         } else
1159         {
1160                 if (errno != EWOULDBLOCK)
1161                 {
1162                         PERROR("Failed to accept connection from socket \"%s\". (errno=%d) Closing socket.\n", sock_address.sun_path, errno);
1163                         admin_cleanup();
1164                         return(1);
1165                 }
1166         }
1167
1168         /* loop all current socket connections */
1169         admin = admin_first;
1170         adminp = &admin_first;
1171         while(admin)
1172         {
1173                 /* read command */
1174                 len = read(admin->sock, &msg, sizeof(msg));
1175                 if (len < 0)
1176                 {
1177                         if (errno != EWOULDBLOCK)
1178                         {
1179                                 work = 1;
1180                                 brokenpipe:
1181                                 printf("Broken pipe on socket %d. (errno=%d).\n", admin->sock, errno);
1182                                 PDEBUG(DEBUG_LOG, "Broken pipe on socket %d. (errno=%d).\n", admin->sock, errno);
1183                                 *adminp = admin->next;
1184                                 free_connection(admin);
1185                                 admin = *adminp;
1186                                 continue;
1187                         }
1188                         goto send_data;
1189                 }
1190                 work = 1;
1191 //#warning
1192 //PERROR("DEBUG socket %d got data. serial=%d\n", admin->sock, admin->sockserial);
1193                 if (len == 0)
1194                 {
1195                         end:
1196
1197                         /*release endpoint if exists */
1198                         if (admin->epointid)
1199                         {
1200                                 epoint = find_epoint_id(admin->epointid);
1201                                 if (epoint)
1202                                 {
1203                                         ((class DEFAULT_ENDPOINT_APP *)epoint->ep_app)->
1204                                                 release(RELEASE_ALL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL);
1205                                 }
1206                         }
1207
1208 //#warning
1209 //PERROR("DEBUG socket %d closed by remote.\n", admin->sock);
1210                         *adminp = admin->next;
1211                         free_connection(admin);
1212                         admin = *adminp;
1213 //PERROR("DEBUG (admin_first=%x)\n", admin_first);
1214                         continue;
1215                 }
1216                 if (len != sizeof(msg))
1217                 {
1218                         PERROR("Short/long read on socket %d. (len=%d != size=%d).\n", admin->sock, len, sizeof(msg));
1219                         *adminp = admin->next;
1220                         free_connection(admin);
1221                         admin = *adminp;
1222                         continue;
1223                 }
1224                 /* process socket command */
1225                 if (admin->response && msg.message != ADMIN_MESSAGE)
1226                 {
1227                         PERROR("Data from socket %d while sending response.\n", admin->sock);
1228                         *adminp = admin->next;
1229                         free_connection(admin);
1230                         admin = *adminp;
1231                         continue;
1232                 }
1233                 switch (msg.message)
1234                 {
1235                         case ADMIN_REQUEST_CMD_INTERFACE:
1236                         if (admin_interface(&admin->response) < 0)
1237                         {
1238                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1239                                 goto response_error;
1240                         }
1241                         break;
1242
1243                         case ADMIN_REQUEST_CMD_ROUTE:
1244                         if (admin_route(&admin->response) < 0)
1245                         {
1246                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1247                                 goto response_error;
1248                         }
1249                         break;
1250
1251                         case ADMIN_REQUEST_CMD_DIAL:
1252                         if (admin_dial(&admin->response, msg.u.x.message) < 0)
1253                         {
1254                                 PERROR("Failed to create dial response for socket %d.\n", admin->sock);
1255                                 goto response_error;
1256                         }
1257                         break;
1258
1259                         case ADMIN_REQUEST_CMD_RELEASE:
1260                         if (admin_release(&admin->response, msg.u.x.message) < 0)
1261                         {
1262                                 PERROR("Failed to create release response for socket %d.\n", admin->sock);
1263                                 goto response_error;
1264                         }
1265                         break;
1266
1267                         case ADMIN_REQUEST_STATE:
1268                         if (admin_state(&admin->response) < 0)
1269                         {
1270                                 PERROR("Failed to create state response for socket %d.\n", admin->sock);
1271                                 goto response_error;
1272                         }
1273                         break;
1274
1275                         case ADMIN_TRACE_REQUEST:
1276                         if (admin_trace(admin, &msg.u.trace_req) < 0)
1277                         {
1278                                 PERROR("Failed to create trace response for socket %d.\n", admin->sock);
1279                                 goto response_error;
1280                         }
1281                         break;
1282
1283                         case ADMIN_REQUEST_CMD_BLOCK:
1284                         if (admin_block(&admin->response, msg.u.x.portnum, msg.u.x.block) < 0)
1285                         {
1286                                 PERROR("Failed to create block response for socket %d.\n", admin->sock);
1287                                 goto response_error;
1288                         }
1289                         break;
1290
1291                         case ADMIN_MESSAGE:
1292                         if (admin_message_to_join(&msg.u.msg, admin) < 0)
1293                         {
1294                                 PERROR("Failed to deliver message for socket %d.\n", admin->sock);
1295                                 goto response_error;
1296                         }
1297 #if 0
1298 #warning DEBUGGING
1299 {
1300         struct admin_queue      *response;
1301         printf("Chain: ");
1302         response = admin->response;
1303         while(response)
1304         {
1305                 printf("%c", '0'+response->am[0].message);
1306                 response=response->next;
1307         }
1308         printf("\n");
1309 }
1310 #endif
1311                         break;
1312
1313                         case ADMIN_CALL_SETUP:
1314                         if (admin_call(admin, &msg) < 0)
1315                         {
1316                                 PERROR("Failed to create call for socket %d.\n", admin->sock);
1317                                 response_error:
1318                                 *adminp = admin->next;
1319                                 free_connection(admin);
1320                                 admin = *adminp;
1321                                 continue;
1322                         }
1323                         break;
1324
1325                         default:
1326                         PERROR("Invalid message %d from socket %d.\n", msg.message, admin->sock);
1327                         *adminp = admin->next;
1328                         free_connection(admin);
1329                         admin = *adminp;
1330                         continue;
1331                 }
1332                 /* write queue */
1333                 send_data:
1334                 if (admin->response)
1335                 {
1336 //#warning
1337 //PERROR("DEBUG socket %d sending data.\n", admin->sock);
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                         {
1341                                 if (errno != EWOULDBLOCK)
1342                                 {
1343                                         work = 1;
1344                                         goto brokenpipe;
1345                                 }
1346                                 goto next;
1347                         }
1348                         work = 1;
1349                         if (len == 0)
1350                                 goto end;
1351                         if (len < (int)(sizeof(struct admin_message)*(admin->response->num) - admin->response->offset))
1352                         {
1353                                 admin->response->offset+=len;
1354                                 goto next;
1355                         } else
1356                         {
1357                                 temp = admin->response;
1358                                 admin->response = admin->response->next;
1359                                 FREE(temp, 0);
1360                                 memuse--;
1361                         }
1362                 }
1363                 /* done with socket instance */
1364                 next:
1365                 adminp = &admin->next;
1366                 admin = admin->next;
1367         }
1368
1369         return(work);
1370 }
1371