1 /* 2 * PPP User command processing module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * $Id: command.c,v 1.23 1996/10/12 16:20:28 jkh Exp $ 21 * 22 */ 23 #include <sys/types.h> 24 #include <ctype.h> 25 #include <termios.h> 26 #include <sys/wait.h> 27 #include <time.h> 28 #include "fsm.h" 29 #include "phase.h" 30 #include "lcp.h" 31 #include "ipcp.h" 32 #include "modem.h" 33 #include "filter.h" 34 #include "command.h" 35 #include "hdlc.h" 36 #include "vars.h" 37 #include "auth.h" 38 #include <netdb.h> 39 #include <sys/socket.h> 40 #include <arpa/inet.h> 41 #include <net/route.h> 42 #include "os.h" 43 #include <paths.h> 44 45 extern int MakeArgs(); 46 extern void Cleanup(), TtyTermMode(), PacketMode(); 47 extern int EnableCommand(), DisableCommand(), DisplayCommand(); 48 extern int AcceptCommand(), DenyCommand(); 49 extern int LocalAuthCommand(); 50 extern int LoadCommand(), SaveCommand(); 51 extern int ChangeParity(char *); 52 extern int SelectSystem(); 53 extern int ShowRoute(); 54 extern void TtyOldMode(), TtyCommandMode(); 55 extern struct pppvars pppVars; 56 extern struct cmdtab const SetCommands[]; 57 58 struct in_addr ifnetmask; 59 60 static int ShowCommand(), TerminalCommand(), QuitCommand(); 61 static int CloseCommand(), DialCommand(), DownCommand(); 62 static int SetCommand(), AddCommand(), DeleteCommand(); 63 static int ShellCommand(); 64 65 static int 66 HelpCommand(list, argc, argv, plist) 67 struct cmdtab *list; 68 int argc; 69 char **argv; 70 struct cmdtab *plist; 71 { 72 struct cmdtab *cmd; 73 int n; 74 char c; 75 76 if (argc > 0) { 77 for (cmd = plist; cmd->name; cmd++) { 78 if (strcmp(cmd->name, *argv) == 0 && (cmd->lauth & VarLocalAuth)) { 79 if (plist == SetCommands) 80 printf("set "); 81 printf("%s %s\n", cmd->name, cmd->syntax); 82 return(1); 83 } 84 } 85 return(1); 86 } 87 n = 0; 88 for (cmd = plist; cmd->func; cmd++) { 89 if (cmd->name && (cmd->lauth & VarLocalAuth)) { 90 c = (n & 1)? '\n' : '\t'; 91 printf(" %-8s: %-20s%c", cmd->name, cmd->helpmes, c); 92 n++; 93 } 94 } 95 if (n & 1) 96 printf("\n"); 97 return(1); 98 } 99 100 int 101 IsInteractive() 102 { 103 char *mes = NULL; 104 105 if (mode & MODE_AUTO) 106 mes = "Working in auto mode."; 107 else if (mode & MODE_DIRECT) 108 mes = "Working in direct mode."; 109 else if (mode & MODE_DEDICATED) 110 mes = "Working in dedicated mode."; 111 if (mes) { 112 printf("%s\n", mes); 113 return(0); 114 } 115 return(1); 116 } 117 118 static int 119 DialCommand(cmdlist, argc, argv) 120 struct cmdtab *cmdlist; 121 int argc; 122 char **argv; 123 { 124 int tries; 125 126 if (LcpFsm.state > ST_CLOSED) { 127 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]); 128 return(1); 129 } 130 if (!IsInteractive()) 131 return(1); 132 if (argc > 0) { 133 if (SelectSystem(*argv, CONFFILE) < 0) { 134 printf("%s: not found.\n", *argv); 135 return(1); 136 } 137 } 138 tries = 0; 139 do { 140 printf("Dial attempt %u\n", ++tries); 141 modem = OpenModem(mode); 142 if (modem < 0) { 143 printf("failed to open modem.\n"); 144 modem = 0; 145 break; 146 } 147 if (DialModem()) { 148 sleep(1); 149 ModemTimeout(); 150 PacketMode(); 151 break; 152 } 153 } while (VarDialTries == 0 || tries < VarDialTries); 154 return(1); 155 } 156 157 static int 158 ShellCommand(cmdlist, argc, argv) 159 struct cmdtab *cmdlist; 160 int argc; 161 char **argv; 162 { 163 const char *shell; 164 pid_t shpid; 165 166 if((shell = getenv("SHELL")) == 0) { 167 shell = _PATH_BSHELL; 168 } 169 #ifdef SHELL_ONLY_INTERACTIVELY 170 #ifndef HAVE_SHELL_CMD_WITH_ANY_MODE 171 if( mode != MODE_INTER) { 172 fprintf(stdout, 173 "Can only start a shell in interactive mode\n"); 174 return(1); 175 } 176 #else 177 if(argc == 0 && !(mode & MODE_INTER)) { 178 fprintf(stderr, 179 "Can only start an interactive shell in interactive mode\n"); 180 return(1); 181 } 182 #endif /* HAVE_SHELL_CMD_WITH_ANY_MODE */ 183 #else 184 if ((mode & (MODE_AUTO|MODE_INTER)) == (MODE_AUTO|MODE_INTER)) { 185 fprintf(stdout, 186 "Shell is not allowed interactively in auto mode\n"); 187 return(1); 188 } 189 #endif /* SHELL_ONLY_INTERACTIVELY */ 190 if((shpid = fork()) == 0) { 191 int dtablesize, i ; 192 193 for (dtablesize = getdtablesize(), i = 3; i < dtablesize; i++) 194 (void)close(i); 195 196 /* 197 * We are running setuid, we should change to 198 * real user for avoiding security problems. 199 */ 200 if (setgid(getgid()) < 0) { 201 perror("setgid"); 202 exit(1); 203 } 204 if (setuid(getuid()) < 0) { 205 perror("setuid"); 206 exit(1); 207 } 208 TtyOldMode(); 209 if(argc > 0) { 210 /* substitute pseudo args */ 211 for (i=1; i<argc; i++) { 212 if (strcmp(argv[i], "HISADDR") == 0) { 213 argv[i] = strdup(inet_ntoa(IpcpInfo.his_ipaddr)); 214 } 215 if (strcmp(argv[i], "MYADDR") == 0) { 216 argv[i] = strdup(inet_ntoa(IpcpInfo.want_ipaddr)); 217 } 218 } 219 execvp(argv[0], argv); 220 } 221 else 222 execl(shell, shell, NULL); 223 224 fprintf(stdout, "exec() of %s failed\n", argc > 0? argv[0]: shell); 225 exit(255); 226 } 227 if( shpid == (pid_t)-1 ) { 228 fprintf(stdout, "Fork failed\n"); 229 } else { 230 int status; 231 (void)waitpid(shpid, &status, 0); 232 } 233 234 TtyCommandMode(1); 235 236 return(0); 237 } 238 239 static char StrOption[] = "option .."; 240 static char StrRemote[] = "[remote]"; 241 char StrNull[] = ""; 242 243 struct cmdtab const Commands[] = { 244 { "accept", NULL, AcceptCommand, LOCAL_AUTH, 245 "accept option request", StrOption}, 246 { "add", NULL, AddCommand, LOCAL_AUTH, 247 "add route", "dest mask gateway"}, 248 { "close", NULL, CloseCommand, LOCAL_AUTH, 249 "Close connection", StrNull}, 250 { "delete", NULL, DeleteCommand, LOCAL_AUTH, 251 "delete route", "ALL | dest gateway [mask]"}, 252 { "deny", NULL, DenyCommand, LOCAL_AUTH, 253 "Deny option request", StrOption}, 254 { "dial", "call", DialCommand, LOCAL_AUTH, 255 "Dial and login", StrRemote}, 256 { "disable", NULL, DisableCommand, LOCAL_AUTH, 257 "Disable option", StrOption}, 258 { "display", NULL, DisplayCommand, LOCAL_AUTH, 259 "Display option configs", StrNull}, 260 { "enable", NULL, EnableCommand, LOCAL_AUTH, 261 "Enable option", StrOption}, 262 { "passwd", NULL, LocalAuthCommand,LOCAL_NO_AUTH, 263 "Password for manipulation", StrOption}, 264 { "load", NULL, LoadCommand, LOCAL_AUTH, 265 "Load settings", StrRemote}, 266 { "save", NULL, SaveCommand, LOCAL_AUTH, 267 "Save settings", StrNull}, 268 { "set", "setup", SetCommand, LOCAL_AUTH, 269 "Set parameters", "var value"}, 270 { "shell", "!", ShellCommand, LOCAL_AUTH, 271 "Run a subshell", "[sh command]"}, 272 { "show", NULL, ShowCommand, LOCAL_AUTH, 273 "Show status and statictics", "var"}, 274 { "term", NULL, TerminalCommand,LOCAL_AUTH, 275 "Enter to terminal mode", StrNull}, 276 { "quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 277 "Quit PPP program", "[all]"}, 278 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 279 "Display this message", "[command]", (void *)Commands }, 280 { NULL, "down", DownCommand, LOCAL_AUTH, 281 "Generate down event", StrNull}, 282 { NULL, NULL, NULL }, 283 }; 284 285 extern int ReportCcpStatus(); 286 extern int ReportLcpStatus(); 287 extern int ReportIpcpStatus(); 288 extern int ReportProtStatus(); 289 extern int ReportCompress(); 290 extern int ShowModemStatus(); 291 extern int ReportHdlcStatus(); 292 extern int ShowMemMap(); 293 294 static char *LogLevelName[] = { 295 LM_PHASE, LM_CHAT, LM_LQM, LM_LCP, 296 LM_TCPIP, LM_HDLC, LM_ASYNC, LM_LINK, 297 LM_CONNECT, LM_CARRIER, 298 }; 299 300 static int ShowDebugLevel() 301 { 302 int i; 303 304 printf("%02x: ", loglevel); 305 for (i = LOG_PHASE; i < MAXLOGLEVEL; i++) { 306 if (loglevel & (1 << i)) 307 printf("%s ", LogLevelName[i]); 308 } 309 printf("\n"); 310 return(1); 311 } 312 313 static int ShowEscape() 314 { 315 int code, bit; 316 317 if (EscMap[32]) { 318 for (code = 0; code < 32; code++) { 319 if (EscMap[code]) { 320 for (bit = 0; bit < 8; bit++) { 321 if (EscMap[code] & (1<<bit)) { 322 printf(" 0x%02x", (code << 3) + bit); 323 } 324 } 325 } 326 } 327 printf("\n"); 328 } 329 return(1); 330 } 331 332 static int ShowTimeout() 333 { 334 printf(" Idle Timer: %d secs LQR Timer: %d secs Retry Timer: %d secs\n", 335 VarIdleTimeout, VarLqrTimeout, VarRetryTimeout); 336 return(1); 337 } 338 339 static int ShowAuthKey() 340 { 341 printf("AuthName = %s\n", VarAuthName); 342 printf("AuthKey = %s\n", VarAuthKey); 343 return(1); 344 } 345 346 static int ShowVersion() 347 { 348 extern char VarVersion[]; 349 extern char VarLocalVersion[]; 350 351 printf("%s - %s \n", VarVersion, VarLocalVersion); 352 return(1); 353 } 354 355 static int ShowLogList() 356 { 357 ListLog(); 358 return(1); 359 } 360 361 static int ShowRedial() 362 { 363 printf(" Redial Timer: "); 364 365 if (VarRedialTimeout >= 0) { 366 printf(" %d seconds, ", VarRedialTimeout); 367 } 368 else { 369 printf(" Random 0 - %d seconds, ", REDIAL_PERIOD); 370 } 371 372 if (VarDialTries) 373 printf("%d dial tries", VarDialTries); 374 375 printf("\n"); 376 377 return(1); 378 } 379 380 #ifdef MSEXT 381 static int ShowMSExt() 382 { 383 printf(" MS PPP extention values \n" ); 384 printf(" Primary NS : %s\n", inet_ntoa( ns_entries[0] )); 385 printf(" Secondary NS : %s\n", inet_ntoa( ns_entries[1] )); 386 printf(" Primary NBNS : %s\n", inet_ntoa( nbns_entries[0] )); 387 printf(" Secondary NBNS : %s\n", inet_ntoa( nbns_entries[1] )); 388 389 return(1); 390 } 391 #endif /* MSEXT */ 392 393 extern int ShowIfilter(), ShowOfilter(), ShowDfilter(), ShowAfilter(); 394 395 struct cmdtab const ShowCommands[] = { 396 { "afilter", NULL, ShowAfilter, LOCAL_AUTH, 397 "Show keep Alive filters", StrOption}, 398 { "auth", NULL, ShowAuthKey, LOCAL_AUTH, 399 "Show auth name/key", StrNull}, 400 { "ccp", NULL, ReportCcpStatus, LOCAL_AUTH, 401 "Show CCP status", StrNull}, 402 { "compress", NULL, ReportCompress, LOCAL_AUTH, 403 "Show compression statictics", StrNull}, 404 { "debug", NULL, ShowDebugLevel, LOCAL_AUTH, 405 "Show current debug level", StrNull}, 406 { "dfilter", NULL, ShowDfilter, LOCAL_AUTH, 407 "Show Demand filters", StrOption}, 408 { "escape", NULL, ShowEscape, LOCAL_AUTH, 409 "Show escape characters", StrNull}, 410 { "hdlc", NULL, ReportHdlcStatus, LOCAL_AUTH, 411 "Show HDLC error summary", StrNull}, 412 { "ifilter", NULL, ShowIfilter, LOCAL_AUTH, 413 "Show Input filters", StrOption}, 414 { "ipcp", NULL, ReportIpcpStatus, LOCAL_AUTH, 415 "Show IPCP status", StrNull}, 416 { "lcp", NULL, ReportLcpStatus, LOCAL_AUTH, 417 "Show LCP status", StrNull}, 418 { "log", NULL, ShowLogList, LOCAL_AUTH, 419 "Show log records", StrNull}, 420 { "mem", NULL, ShowMemMap, LOCAL_AUTH, 421 "Show memory map", StrNull}, 422 { "modem", NULL, ShowModemStatus, LOCAL_AUTH, 423 "Show modem setups", StrNull}, 424 { "ofilter", NULL, ShowOfilter, LOCAL_AUTH, 425 "Show Output filters", StrOption}, 426 { "proto", NULL, ReportProtStatus, LOCAL_AUTH, 427 "Show protocol summary", StrNull}, 428 { "route", NULL, ShowRoute, LOCAL_AUTH, 429 "Show routing table", StrNull}, 430 { "timeout", NULL, ShowTimeout, LOCAL_AUTH, 431 "Show Idle timeout value", StrNull}, 432 { "redial", NULL, ShowRedial, LOCAL_AUTH, 433 "Show Redial timeout value", StrNull}, 434 #ifdef MSEXT 435 { "msext", NULL, ShowMSExt, LOCAL_AUTH, 436 "Show MS PPP extention values", StrNull}, 437 #endif /* MSEXT */ 438 { "version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 439 "Show version string", StrNull}, 440 { "help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 441 "Display this message", StrNull, (void *)ShowCommands}, 442 { NULL, NULL, NULL }, 443 }; 444 445 struct cmdtab * 446 FindCommand(cmds, str, pmatch) 447 struct cmdtab *cmds; 448 char *str; 449 int *pmatch; 450 { 451 int nmatch = 0; 452 int len = strlen(str); 453 struct cmdtab *found = NULL; 454 455 while (cmds->func) { 456 if (cmds->name && strncmp(str, cmds->name, len) == 0) { 457 nmatch++; 458 found = cmds; 459 } else if (cmds->alias && strncmp(str, cmds->alias, len) == 0) { 460 nmatch++; 461 found = cmds; 462 } 463 cmds++; 464 } 465 *pmatch = nmatch; 466 return(found); 467 } 468 469 int 470 FindExec(cmdlist, argc, argv) 471 struct cmdtab *cmdlist; 472 int argc; 473 char **argv; 474 { 475 struct cmdtab *cmd; 476 int val = 1; 477 int nmatch; 478 479 cmd = FindCommand(cmdlist, *argv, &nmatch); 480 if (nmatch > 1) 481 printf("Ambiguous.\n"); 482 else if (cmd && ( cmd->lauth & VarLocalAuth ) ) 483 val = (cmd->func)(cmd, --argc, ++argv, cmd->args); 484 else 485 printf("what?\n"); 486 return(val); 487 } 488 489 int aft_cmd = 1; 490 491 void 492 Prompt() 493 { 494 char *pconnect, *pauth; 495 496 if (!(mode & MODE_INTER)) 497 return; 498 499 if (!aft_cmd) 500 printf("\n"); 501 else 502 aft_cmd = 0; 503 504 if ( VarLocalAuth == LOCAL_AUTH ) 505 pauth = " ON "; 506 else 507 pauth = " on "; 508 if (IpcpFsm.state == ST_OPENED && phase == PHASE_NETWORK) 509 pconnect = "PPP"; 510 else 511 pconnect = "ppp"; 512 printf("%s%s%s> ", pconnect, pauth, VarShortHost); 513 fflush(stdout); 514 } 515 516 void 517 DecodeCommand(buff, nb, prompt) 518 char *buff; 519 int nb; 520 int prompt; 521 { 522 char *vector[20]; 523 char **argv; 524 int argc, val; 525 char *cp; 526 527 val = 1; 528 if (nb > 0) { 529 cp = buff + strcspn(buff, "\r\n"); 530 if (cp) 531 *cp = '\0'; 532 { 533 argc = MakeArgs(buff, &vector); 534 argv = vector; 535 536 if (argc > 0) 537 val = FindExec(Commands, argc, argv); 538 } 539 } 540 if (val && prompt) 541 Prompt(0); 542 } 543 544 static int 545 ShowCommand(list, argc, argv) 546 struct cmdtab *list; 547 int argc; 548 char **argv; 549 { 550 int val = 1; 551 552 if (argc > 0) 553 val = FindExec(ShowCommands, argc, argv); 554 else 555 printf("Use ``show ?'' to get a list.\n"); 556 return(val); 557 } 558 559 static int 560 TerminalCommand() 561 { 562 if (LcpFsm.state > ST_CLOSED) { 563 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]); 564 return(1); 565 } 566 if (!IsInteractive()) 567 return(1); 568 modem = OpenModem(mode); 569 if (modem < 0) { 570 printf("failed to open modem.\n"); 571 modem = 0; 572 return(1); 573 } 574 printf("Enter to terminal mode.\n"); 575 printf("Type `~?' for help.\n"); 576 TtyTermMode(); 577 return(0); 578 } 579 580 static int 581 QuitCommand(list, argc, argv) 582 struct cmdtab *list; 583 int argc; 584 char **argv; 585 { 586 if (mode & (MODE_DIRECT|MODE_DEDICATED|MODE_AUTO)) { 587 if (argc > 0 && (VarLocalAuth & LOCAL_AUTH)) { 588 Cleanup(EX_NORMAL); 589 mode &= ~MODE_INTER; 590 } else { 591 VarLocalAuth = LOCAL_NO_AUTH; 592 close(netfd); 593 close(1); 594 dup2(2, 1); /* Have to have something here or the modem will be 1 */ 595 netfd = -1; 596 mode &= ~MODE_INTER; 597 } 598 } else 599 Cleanup(EX_NORMAL); 600 return(1); 601 } 602 603 static int 604 CloseCommand() 605 { 606 LcpClose(); 607 return(1); 608 } 609 610 static int 611 DownCommand() 612 { 613 LcpDown(); 614 return(1); 615 } 616 617 static int SetModemSpeed(list, argc, argv) 618 struct cmdtab *list; 619 int argc; 620 char **argv; 621 { 622 int speed; 623 624 if (argc > 0) { 625 if (strcmp(*argv, "sync") == 0) { 626 VarSpeed = 0; 627 return(1); 628 } 629 speed = atoi(*argv); 630 if (IntToSpeed(speed) != B0) { 631 VarSpeed = speed; 632 return(1); 633 } 634 printf("invalid speed.\n"); 635 } 636 return(1); 637 } 638 639 static int SetRedialTimeout(list, argc, argv) 640 struct cmdtab *list; 641 int argc; 642 char **argv; 643 { 644 int timeout; 645 int tries; 646 647 if (argc == 1 || argc == 2 ) { 648 if (strcasecmp(argv[0], "random") == 0) { 649 VarRedialTimeout = -1; 650 printf("Using random redial timeout.\n"); 651 srandom(time(0)); 652 } 653 else { 654 timeout = atoi(argv[0]); 655 656 if (timeout >= 0) { 657 VarRedialTimeout = timeout; 658 } 659 else { 660 printf("invalid redial timeout\n"); 661 printf("Usage: %s %s\n", list->name, list->syntax); 662 } 663 } 664 if (argc == 2) { 665 tries = atoi(argv[1]); 666 667 if (tries >= 0) { 668 VarDialTries = tries; 669 } 670 else { 671 printf("invalid retry value\n"); 672 printf("Usage: %s %s\n", list->name, list->syntax); 673 } 674 } 675 } 676 else { 677 printf("Usage: %s %s\n", list->name, list->syntax); 678 } 679 return(1); 680 } 681 682 static int SetModemParity(list, argc, argv) 683 struct cmdtab *list; 684 int argc; 685 char **argv; 686 { 687 int parity; 688 689 if (argc > 0) { 690 parity = ChangeParity(*argv); 691 if (parity < 0) 692 printf("Invalid parity.\n"); 693 else 694 VarParity = parity; 695 } 696 return(1); 697 } 698 699 static int 700 SetDebugLevel(list, argc, argv) 701 struct cmdtab *list; 702 int argc; 703 char **argv; 704 { 705 int level, w; 706 707 for (level = 0; argc-- > 0; argv++) { 708 if (isdigit(**argv)) { 709 w = atoi(*argv); 710 if (w < 0 || w >= MAXLOGLEVEL) { 711 printf("invalid log level.\n"); 712 break; 713 } else 714 level |= (1 << w); 715 } else { 716 for (w = 0; w < MAXLOGLEVEL; w++) { 717 if (strcasecmp(*argv, LogLevelName[w]) == 0) { 718 level |= (1 << w); 719 continue; 720 } 721 } 722 } 723 } 724 loglevel = level; 725 return(1); 726 } 727 728 static int 729 SetEscape(list, argc, argv) 730 struct cmdtab *list; 731 int argc; 732 char **argv; 733 { 734 int code; 735 736 for (code = 0; code < 33; code++) 737 EscMap[code] = 0; 738 while (argc-- > 0) { 739 sscanf(*argv++, "%x", &code); 740 code &= 0xff; 741 EscMap[code >> 3] |= (1 << (code&7)); 742 EscMap[32] = 1; 743 } 744 return(1); 745 } 746 747 static int 748 SetInitialMRU(list, argc, argv) 749 struct cmdtab *list; 750 int argc; 751 char **argv; 752 { 753 int mru; 754 755 if (argc > 0) { 756 mru = atoi(*argv); 757 if (mru < 100) 758 printf("given value is too small.\n"); 759 else if (mru > MAX_MRU) 760 printf("given value is too big.\n"); 761 else 762 VarMRU = mru; 763 } 764 return(1); 765 } 766 767 static int 768 SetIdleTimeout(list, argc, argv) 769 struct cmdtab *list; 770 int argc; 771 char **argv; 772 { 773 if (argc-- > 0) { 774 VarIdleTimeout = atoi(*argv++); 775 if (argc-- > 0) { 776 VarLqrTimeout = atoi(*argv++); 777 if (VarLqrTimeout < 1) 778 VarLqrTimeout = 30; 779 if (argc > 0) { 780 VarRetryTimeout = atoi(*argv); 781 if (VarRetryTimeout < 1 || VarRetryTimeout > 10) 782 VarRetryTimeout = 3; 783 } 784 } 785 } 786 return(1); 787 } 788 789 struct in_addr 790 GetIpAddr(cp) 791 char *cp; 792 { 793 struct hostent *hp; 794 struct in_addr ipaddr; 795 796 hp = gethostbyname(cp); 797 if (hp && hp->h_addrtype == AF_INET) 798 bcopy(hp->h_addr, &ipaddr, hp->h_length); 799 else if (inet_aton(cp, &ipaddr) == 0) 800 ipaddr.s_addr = 0; 801 return(ipaddr); 802 } 803 804 static int 805 SetInterfaceAddr(list, argc, argv) 806 struct cmdtab *list; 807 int argc; 808 char **argv; 809 { 810 811 DefMyAddress.ipaddr.s_addr = DefHisAddress.ipaddr.s_addr = 0L; 812 if (argc > 0) { 813 ParseAddr(argc, argv++, 814 &DefMyAddress.ipaddr, &DefMyAddress.mask, &DefMyAddress.width); 815 if (--argc > 0) { 816 ParseAddr(argc, argv++, 817 &DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width); 818 if (--argc > 0) { 819 ifnetmask = GetIpAddr(*argv); 820 if (--argc > 0) { 821 ParseAddr(argc, argv++, 822 &DefTriggerAddress.ipaddr, 823 &DefTriggerAddress.mask, 824 &DefTriggerAddress.width); 825 } 826 } 827 } 828 } 829 /* 830 * For backwards compatibility, 0.0.0.0 means any address. 831 */ 832 if (DefMyAddress.ipaddr.s_addr == 0) { 833 DefMyAddress.mask.s_addr = 0; 834 DefMyAddress.width = 0; 835 } 836 if (DefHisAddress.ipaddr.s_addr == 0) { 837 DefHisAddress.mask.s_addr = 0; 838 DefHisAddress.width = 0; 839 } 840 841 if ((mode & MODE_AUTO) || 842 ((mode & MODE_DEDICATED) && dstsystem)) { 843 OsSetIpaddress(DefMyAddress.ipaddr, DefHisAddress.ipaddr, ifnetmask); 844 } 845 return(1); 846 } 847 848 #ifdef MSEXT 849 850 void 851 SetMSEXT(pri_addr, sec_addr, argc, argv) 852 struct in_addr *pri_addr; 853 struct in_addr *sec_addr; 854 int argc; 855 char **argv; 856 { 857 int dummyint; 858 struct in_addr dummyaddr; 859 860 pri_addr->s_addr = sec_addr->s_addr = 0L; 861 862 if( argc > 0 ) { 863 ParseAddr(argc, argv++, pri_addr, &dummyaddr, &dummyint); 864 if( --argc > 0 ) 865 ParseAddr(argc, argv++, sec_addr, &dummyaddr, &dummyint); 866 else 867 sec_addr->s_addr = pri_addr->s_addr; 868 } 869 870 /* 871 * if the primary/secondary ns entries are 0.0.0.0 we should 872 * set them to either the localhost's ip, or the values in 873 * /etc/resolv.conf ?? 874 * 875 * up to you if you want to implement this... 876 */ 877 878 } 879 880 static int 881 SetNS(list, argc, argv) 882 struct cmdtab *list; 883 int argc; 884 char **argv; 885 { 886 SetMSEXT(&ns_entries[0], &ns_entries[1], argc, argv); 887 return(1); 888 } 889 890 static int 891 SetNBNS(list, argc, argv) 892 struct cmdtab *list; 893 int argc; 894 char **argv; 895 { 896 SetMSEXT(&nbns_entries[0], &nbns_entries[1], argc, argv); 897 return(1); 898 } 899 900 #endif /* MS_EXT */ 901 902 #define VAR_AUTHKEY 0 903 #define VAR_DIAL 1 904 #define VAR_LOGIN 2 905 #define VAR_AUTHNAME 3 906 #define VAR_DEVICE 4 907 #define VAR_ACCMAP 5 908 #define VAR_PHONE 6 909 910 static int 911 SetVariable(list, argc, argv, param) 912 struct cmdtab *list; 913 int argc; 914 char **argv; 915 int param; 916 { 917 u_long map; 918 919 if (argc > 0) { 920 switch (param) { 921 case VAR_AUTHKEY: 922 strncpy(VarAuthKey, *argv, sizeof(VarAuthKey)-1); 923 break; 924 case VAR_AUTHNAME: 925 strncpy(VarAuthName, *argv, sizeof(VarAuthName)-1); 926 break; 927 case VAR_DIAL: 928 strncpy(VarDialScript, *argv, sizeof(VarDialScript)-1); 929 break; 930 case VAR_LOGIN: 931 strncpy(VarLoginScript, *argv, sizeof(VarDialScript)-1); 932 break; 933 case VAR_DEVICE: 934 strncpy(VarDevice, *argv, sizeof(VarDevice)-1); 935 break; 936 case VAR_ACCMAP: 937 sscanf(*argv, "%lx", &map); 938 VarAccmap = map; 939 break; 940 case VAR_PHONE: 941 strncpy(VarPhoneList, *argv, sizeof(VarPhoneList)-1); 942 strcpy(VarPhoneCopy, VarPhoneList); 943 VarNextPhone = VarPhoneCopy; 944 break; 945 } 946 } 947 return(1); 948 } 949 950 static int SetOpenMode(list, argc, argv) 951 struct cmdtab *list; 952 int argc; 953 char **argv; 954 { 955 if (argc > 0) { 956 if (strcmp(*argv, "active") == 0) 957 VarOpenMode = OPEN_ACTIVE; 958 else if (strcmp(*argv, "passive") == 0) 959 VarOpenMode = OPEN_PASSIVE; 960 else 961 printf("Invalid mode.\n"); 962 } 963 return(1); 964 } 965 966 static char StrChatStr[] = "chat-script"; 967 static char StrValue[] = "value"; 968 969 extern int SetIfilter(), SetOfilter(), SetDfilter(), SetAfilter(); 970 971 struct cmdtab const SetCommands[] = { 972 { "accmap", NULL, SetVariable, LOCAL_AUTH, 973 "Set accmap value", "hex-value", (void *)VAR_ACCMAP}, 974 { "afilter", NULL, SetAfilter, LOCAL_AUTH, 975 "Set keep Alive filter", "..."}, 976 { "authkey", "key", SetVariable, LOCAL_AUTH, 977 "Set authentication key", "key", (void *)VAR_AUTHKEY}, 978 { "authname", NULL, SetVariable, LOCAL_AUTH, 979 "Set authentication name", "name", (void *)VAR_AUTHNAME}, 980 { "debug", NULL, SetDebugLevel, LOCAL_AUTH, 981 "Set debug level", StrValue}, 982 { "device", "line", SetVariable, LOCAL_AUTH, 983 "Set modem device name", "device-name", (void *)VAR_DEVICE}, 984 { "dfilter", NULL, SetDfilter, LOCAL_AUTH, 985 "Set demand filter", "..."}, 986 { "dial", NULL, SetVariable, LOCAL_AUTH, 987 "Set dialing script", StrChatStr, (void *)VAR_DIAL}, 988 { "escape", NULL, SetEscape, LOCAL_AUTH, 989 "Set escape characters", "hex-digit ..."}, 990 { "ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, 991 "Set destination address", "[src-addr [dst-addr [netmask [trg-addr]]]]"}, 992 { "ifilter", NULL, SetIfilter, LOCAL_AUTH, 993 "Set input filter", "..."}, 994 { "login", NULL, SetVariable, LOCAL_AUTH, 995 "Set login script", StrChatStr, (void *)VAR_LOGIN }, 996 { "mru", "mtu", SetInitialMRU, LOCAL_AUTH, 997 "Set Initial MRU value", StrValue }, 998 { "ofilter", NULL, SetOfilter, LOCAL_AUTH, 999 "Set output filter", "..." }, 1000 { "openmode", NULL, SetOpenMode, LOCAL_AUTH, 1001 "Set open mode", "[active|passive]"}, 1002 { "parity", NULL, SetModemParity, LOCAL_AUTH, 1003 "Set modem parity", "[odd|even|none]"}, 1004 { "phone", NULL, SetVariable, LOCAL_AUTH, 1005 "Set telephone number(s)", "phone1[:phone2[...]]", (void *)VAR_PHONE }, 1006 { "speed", NULL, SetModemSpeed, LOCAL_AUTH, 1007 "Set modem speed", "speed"}, 1008 { "timeout", NULL, SetIdleTimeout, LOCAL_AUTH, 1009 "Set Idle timeout", StrValue}, 1010 { "redial", NULL, SetRedialTimeout, LOCAL_AUTH, 1011 "Set Redial timeout", "value|random [dial_attempts]"}, 1012 #ifdef MSEXT 1013 { "ns", NULL, SetNS, LOCAL_AUTH, 1014 "Set NameServer", "pri-addr [sec-addr]"}, 1015 { "nbns", NULL, SetNBNS, LOCAL_AUTH, 1016 "Set NetBIOS NameServer", "pri-addr [sec-addr]"}, 1017 #endif /* MSEXT */ 1018 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 1019 "Display this message", StrNull, (void *)SetCommands}, 1020 { NULL, NULL, NULL }, 1021 }; 1022 1023 static int 1024 SetCommand(list, argc, argv) 1025 struct cmdtab *list; 1026 int argc; 1027 char **argv; 1028 { 1029 int val = 1; 1030 1031 if (argc > 0) 1032 val = FindExec(SetCommands, argc, argv); 1033 else 1034 printf("Use `set ?' to get a list or `set ? <var>' for syntax help.\n"); 1035 return(val); 1036 } 1037 1038 1039 static int 1040 AddCommand(list, argc, argv) 1041 struct cmdtab *list; 1042 int argc; 1043 char **argv; 1044 { 1045 struct in_addr dest, gateway, netmask; 1046 1047 if (argc == 3) { 1048 dest = GetIpAddr(argv[0]); 1049 netmask = GetIpAddr(argv[1]); 1050 if (strcmp(argv[2], "HISADDR") == 0) 1051 gateway = IpcpInfo.his_ipaddr; 1052 else 1053 gateway = GetIpAddr(argv[2]); 1054 OsSetRoute(RTM_ADD, dest, gateway, netmask); 1055 } else { 1056 printf("Usage: %s %s\n", list->name, list->syntax); 1057 } 1058 return(1); 1059 } 1060 1061 static int 1062 DeleteCommand(list, argc, argv) 1063 struct cmdtab *list; 1064 int argc; 1065 char **argv; 1066 { 1067 struct in_addr dest, gateway, netmask; 1068 1069 if (argc >= 2) { 1070 dest = GetIpAddr(argv[0]); 1071 if (strcmp(argv[1], "HISADDR") == 0) 1072 gateway = IpcpInfo.his_ipaddr; 1073 else 1074 gateway = GetIpAddr(argv[1]); 1075 netmask.s_addr = 0; 1076 if (argc == 3) { 1077 if (inet_aton(argv[1], &netmask) == 0) { 1078 printf("bad netmask value.\n"); 1079 return(1); 1080 } 1081 } 1082 OsSetRoute(RTM_DELETE, dest, gateway, netmask); 1083 } else if (argc == 1 && strcmp(argv[0], "ALL") == 0) { 1084 DeleteIfRoutes(0); 1085 } else { 1086 printf("Usage: %s %s\n", list->name, list->syntax); 1087 } 1088 return(1); 1089 } 1090 1091