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 * $FreeBSD$ 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 extern char *IfDevName; 59 60 struct in_addr ifnetmask; 61 62 static int ShowCommand(), TerminalCommand(), QuitCommand(); 63 static int CloseCommand(), DialCommand(), DownCommand(); 64 static int SetCommand(), AddCommand(), DeleteCommand(); 65 static int ShellCommand(); 66 67 static int 68 HelpCommand(list, argc, argv, plist) 69 struct cmdtab *list; 70 int argc; 71 char **argv; 72 struct cmdtab *plist; 73 { 74 struct cmdtab *cmd; 75 int n; 76 char c; 77 78 if (argc > 0) { 79 for (cmd = plist; cmd->name; cmd++) { 80 if (strcmp(cmd->name, *argv) == 0 && (cmd->lauth & VarLocalAuth)) { 81 if (plist == SetCommands) 82 printf("set "); 83 printf("%s %s\n", cmd->name, cmd->syntax); 84 return(1); 85 } 86 } 87 return(1); 88 } 89 n = 0; 90 for (cmd = plist; cmd->func; cmd++) { 91 if (cmd->name && (cmd->lauth & VarLocalAuth)) { 92 c = (n & 1)? '\n' : '\t'; 93 printf(" %-8s: %-20s%c", cmd->name, cmd->helpmes, c); 94 n++; 95 } 96 } 97 if (n & 1) 98 printf("\n"); 99 return(1); 100 } 101 102 int 103 IsInteractive() 104 { 105 char *mes = NULL; 106 107 if (mode & MODE_DDIAL) 108 mes = "Working in dedicated dial mode."; 109 else if (mode & MODE_AUTO) 110 mes = "Working in auto mode."; 111 else if (mode & MODE_DIRECT) 112 mes = "Working in direct mode."; 113 else if (mode & MODE_DEDICATED) 114 mes = "Working in dedicated mode."; 115 if (mes) { 116 printf("%s\n", mes); 117 return(0); 118 } 119 return(1); 120 } 121 122 static int 123 DialCommand(cmdlist, argc, argv) 124 struct cmdtab *cmdlist; 125 int argc; 126 char **argv; 127 { 128 int tries; 129 130 if (LcpFsm.state > ST_CLOSED) { 131 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]); 132 return(1); 133 } 134 if (!IsInteractive()) 135 return(1); 136 if (argc > 0) { 137 if (SelectSystem(*argv, CONFFILE) < 0) { 138 printf("%s: not found.\n", *argv); 139 return(1); 140 } 141 } 142 tries = 0; 143 do { 144 printf("Dial attempt %u\n", ++tries); 145 modem = OpenModem(mode); 146 if (modem < 0) { 147 printf("failed to open modem.\n"); 148 modem = 0; 149 break; 150 } 151 if (DialModem()) { 152 sleep(1); 153 ModemTimeout(); 154 PacketMode(); 155 break; 156 } 157 } while (VarDialTries == 0 || tries < VarDialTries); 158 return(1); 159 } 160 161 static int 162 ShellCommand(cmdlist, argc, argv) 163 struct cmdtab *cmdlist; 164 int argc; 165 char **argv; 166 { 167 const char *shell; 168 pid_t shpid; 169 170 if((shell = getenv("SHELL")) == 0) { 171 shell = _PATH_BSHELL; 172 } 173 #ifdef SHELL_ONLY_INTERACTIVELY 174 #ifndef HAVE_SHELL_CMD_WITH_ANY_MODE 175 if( mode != MODE_INTER) { 176 fprintf(stdout, 177 "Can only start a shell in interactive mode\n"); 178 return(1); 179 } 180 #else 181 if(argc == 0 && !(mode & MODE_INTER)) { 182 fprintf(stderr, 183 "Can only start an interactive shell in interactive mode\n"); 184 return(1); 185 } 186 #endif /* HAVE_SHELL_CMD_WITH_ANY_MODE */ 187 #else 188 if ((mode & (MODE_AUTO|MODE_INTER)) == (MODE_AUTO|MODE_INTER)) { 189 fprintf(stdout, 190 "Shell is not allowed interactively in auto mode\n"); 191 return(1); 192 } 193 #endif /* SHELL_ONLY_INTERACTIVELY */ 194 if((shpid = fork()) == 0) { 195 int dtablesize, i ; 196 197 for (dtablesize = getdtablesize(), i = 3; i < dtablesize; i++) 198 (void)close(i); 199 200 /* 201 * We are running setuid, we should change to 202 * real user for avoiding security problems. 203 */ 204 if (setgid(getgid()) < 0) { 205 perror("setgid"); 206 exit(1); 207 } 208 if (setuid(getuid()) < 0) { 209 perror("setuid"); 210 exit(1); 211 } 212 TtyOldMode(); 213 if(argc > 0) { 214 /* substitute pseudo args */ 215 for (i=1; i<argc; i++) { 216 if (strcmp(argv[i], "HISADDR") == 0) { 217 argv[i] = strdup(inet_ntoa(IpcpInfo.his_ipaddr)); 218 } 219 if (strcmp(argv[i], "INTERFACE") == 0) { 220 argv[i] = strdup(IfDevName); 221 } 222 if (strcmp(argv[i], "MYADDR") == 0) { 223 argv[i] = strdup(inet_ntoa(IpcpInfo.want_ipaddr)); 224 } 225 } 226 execvp(argv[0], argv); 227 } 228 else 229 execl(shell, shell, NULL); 230 231 fprintf(stdout, "exec() of %s failed\n", argc > 0? argv[0]: shell); 232 exit(255); 233 } 234 if( shpid == (pid_t)-1 ) { 235 fprintf(stdout, "Fork failed\n"); 236 } else { 237 int status; 238 (void)waitpid(shpid, &status, 0); 239 } 240 241 TtyCommandMode(1); 242 243 return(0); 244 } 245 246 static char StrOption[] = "option .."; 247 static char StrRemote[] = "[remote]"; 248 char StrNull[] = ""; 249 250 struct cmdtab const Commands[] = { 251 { "accept", NULL, AcceptCommand, LOCAL_AUTH, 252 "accept option request", StrOption}, 253 { "add", NULL, AddCommand, LOCAL_AUTH, 254 "add route", "dest mask gateway"}, 255 { "close", NULL, CloseCommand, LOCAL_AUTH, 256 "Close connection", StrNull}, 257 { "delete", NULL, DeleteCommand, LOCAL_AUTH, 258 "delete route", "ALL | dest gateway [mask]"}, 259 { "deny", NULL, DenyCommand, LOCAL_AUTH, 260 "Deny option request", StrOption}, 261 { "dial", "call", DialCommand, LOCAL_AUTH, 262 "Dial and login", StrRemote}, 263 { "disable", NULL, DisableCommand, LOCAL_AUTH, 264 "Disable option", StrOption}, 265 { "display", NULL, DisplayCommand, LOCAL_AUTH, 266 "Display option configs", StrNull}, 267 { "enable", NULL, EnableCommand, LOCAL_AUTH, 268 "Enable option", StrOption}, 269 { "passwd", NULL, LocalAuthCommand,LOCAL_NO_AUTH, 270 "Password for manipulation", StrOption}, 271 { "load", NULL, LoadCommand, LOCAL_AUTH, 272 "Load settings", StrRemote}, 273 { "save", NULL, SaveCommand, LOCAL_AUTH, 274 "Save settings", StrNull}, 275 { "set", "setup", SetCommand, LOCAL_AUTH, 276 "Set parameters", "var value"}, 277 { "shell", "!", ShellCommand, LOCAL_AUTH, 278 "Run a subshell", "[sh command]"}, 279 { "show", NULL, ShowCommand, LOCAL_AUTH, 280 "Show status and statictics", "var"}, 281 { "term", NULL, TerminalCommand,LOCAL_AUTH, 282 "Enter to terminal mode", StrNull}, 283 { "quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 284 "Quit PPP program", "[all]"}, 285 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 286 "Display this message", "[command]", (void *)Commands }, 287 { NULL, "down", DownCommand, LOCAL_AUTH, 288 "Generate down event", StrNull}, 289 { NULL, NULL, NULL }, 290 }; 291 292 extern int ReportCcpStatus(); 293 extern int ReportLcpStatus(); 294 extern int ReportIpcpStatus(); 295 extern int ReportProtStatus(); 296 extern int ReportCompress(); 297 extern int ShowModemStatus(); 298 extern int ReportHdlcStatus(); 299 extern int ShowMemMap(); 300 301 static char *LogLevelName[] = { 302 LM_PHASE, LM_CHAT, LM_LQM, LM_LCP, 303 LM_TCPIP, LM_HDLC, LM_ASYNC, LM_LINK, 304 LM_CONNECT, LM_CARRIER, 305 }; 306 307 static int ShowDebugLevel() 308 { 309 int i; 310 311 printf("%02x: ", loglevel); 312 for (i = LOG_PHASE; i < MAXLOGLEVEL; i++) { 313 if (loglevel & (1 << i)) 314 printf("%s ", LogLevelName[i]); 315 } 316 printf("\n"); 317 return(1); 318 } 319 320 static int ShowEscape() 321 { 322 int code, bit; 323 324 if (EscMap[32]) { 325 for (code = 0; code < 32; code++) { 326 if (EscMap[code]) { 327 for (bit = 0; bit < 8; bit++) { 328 if (EscMap[code] & (1<<bit)) { 329 printf(" 0x%02x", (code << 3) + bit); 330 } 331 } 332 } 333 } 334 printf("\n"); 335 } 336 return(1); 337 } 338 339 static int ShowTimeout() 340 { 341 printf(" Idle Timer: %d secs LQR Timer: %d secs Retry Timer: %d secs\n", 342 VarIdleTimeout, VarLqrTimeout, VarRetryTimeout); 343 return(1); 344 } 345 346 static int ShowAuthKey() 347 { 348 printf("AuthName = %s\n", VarAuthName); 349 printf("AuthKey = %s\n", VarAuthKey); 350 return(1); 351 } 352 353 static int ShowVersion() 354 { 355 extern char VarVersion[]; 356 extern char VarLocalVersion[]; 357 358 printf("%s - %s \n", VarVersion, VarLocalVersion); 359 return(1); 360 } 361 362 static int ShowLogList() 363 { 364 ListLog(); 365 return(1); 366 } 367 368 static int ShowRedial() 369 { 370 printf(" Redial Timer: "); 371 372 if (VarRedialTimeout >= 0) { 373 printf(" %d seconds, ", VarRedialTimeout); 374 } 375 else { 376 printf(" Random 0 - %d seconds, ", REDIAL_PERIOD); 377 } 378 379 if (VarDialTries) 380 printf("%d dial tries", VarDialTries); 381 382 printf("\n"); 383 384 return(1); 385 } 386 387 #ifdef MSEXT 388 static int ShowMSExt() 389 { 390 printf(" MS PPP extention values \n" ); 391 printf(" Primary NS : %s\n", inet_ntoa( ns_entries[0] )); 392 printf(" Secondary NS : %s\n", inet_ntoa( ns_entries[1] )); 393 printf(" Primary NBNS : %s\n", inet_ntoa( nbns_entries[0] )); 394 printf(" Secondary NBNS : %s\n", inet_ntoa( nbns_entries[1] )); 395 396 return(1); 397 } 398 #endif /* MSEXT */ 399 400 extern int ShowIfilter(), ShowOfilter(), ShowDfilter(), ShowAfilter(); 401 402 struct cmdtab const ShowCommands[] = { 403 { "afilter", NULL, ShowAfilter, LOCAL_AUTH, 404 "Show keep Alive filters", StrOption}, 405 { "auth", NULL, ShowAuthKey, LOCAL_AUTH, 406 "Show auth name/key", StrNull}, 407 { "ccp", NULL, ReportCcpStatus, LOCAL_AUTH, 408 "Show CCP status", StrNull}, 409 { "compress", NULL, ReportCompress, LOCAL_AUTH, 410 "Show compression statictics", StrNull}, 411 { "debug", NULL, ShowDebugLevel, LOCAL_AUTH, 412 "Show current debug level", StrNull}, 413 { "dfilter", NULL, ShowDfilter, LOCAL_AUTH, 414 "Show Demand filters", StrOption}, 415 { "escape", NULL, ShowEscape, LOCAL_AUTH, 416 "Show escape characters", StrNull}, 417 { "hdlc", NULL, ReportHdlcStatus, LOCAL_AUTH, 418 "Show HDLC error summary", StrNull}, 419 { "ifilter", NULL, ShowIfilter, LOCAL_AUTH, 420 "Show Input filters", StrOption}, 421 { "ipcp", NULL, ReportIpcpStatus, LOCAL_AUTH, 422 "Show IPCP status", StrNull}, 423 { "lcp", NULL, ReportLcpStatus, LOCAL_AUTH, 424 "Show LCP status", StrNull}, 425 { "log", NULL, ShowLogList, LOCAL_AUTH, 426 "Show log records", StrNull}, 427 { "mem", NULL, ShowMemMap, LOCAL_AUTH, 428 "Show memory map", StrNull}, 429 { "modem", NULL, ShowModemStatus, LOCAL_AUTH, 430 "Show modem setups", StrNull}, 431 { "ofilter", NULL, ShowOfilter, LOCAL_AUTH, 432 "Show Output filters", StrOption}, 433 { "proto", NULL, ReportProtStatus, LOCAL_AUTH, 434 "Show protocol summary", StrNull}, 435 { "route", NULL, ShowRoute, LOCAL_AUTH, 436 "Show routing table", StrNull}, 437 { "timeout", NULL, ShowTimeout, LOCAL_AUTH, 438 "Show Idle timeout value", StrNull}, 439 { "redial", NULL, ShowRedial, LOCAL_AUTH, 440 "Show Redial timeout value", StrNull}, 441 #ifdef MSEXT 442 { "msext", NULL, ShowMSExt, LOCAL_AUTH, 443 "Show MS PPP extention values", StrNull}, 444 #endif /* MSEXT */ 445 { "version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 446 "Show version string", StrNull}, 447 { "help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 448 "Display this message", StrNull, (void *)ShowCommands}, 449 { NULL, NULL, NULL }, 450 }; 451 452 struct cmdtab * 453 FindCommand(cmds, str, pmatch) 454 struct cmdtab *cmds; 455 char *str; 456 int *pmatch; 457 { 458 int nmatch = 0; 459 int len = strlen(str); 460 struct cmdtab *found = NULL; 461 462 while (cmds->func) { 463 if (cmds->name && strncmp(str, cmds->name, len) == 0) { 464 nmatch++; 465 found = cmds; 466 } else if (cmds->alias && strncmp(str, cmds->alias, len) == 0) { 467 nmatch++; 468 found = cmds; 469 } 470 cmds++; 471 } 472 *pmatch = nmatch; 473 return(found); 474 } 475 476 int 477 FindExec(cmdlist, argc, argv) 478 struct cmdtab *cmdlist; 479 int argc; 480 char **argv; 481 { 482 struct cmdtab *cmd; 483 int val = 1; 484 int nmatch; 485 486 cmd = FindCommand(cmdlist, *argv, &nmatch); 487 if (nmatch > 1) 488 printf("Ambiguous.\n"); 489 else if (cmd && ( cmd->lauth & VarLocalAuth ) ) 490 val = (cmd->func)(cmd, --argc, ++argv, cmd->args); 491 else 492 printf("what?\n"); 493 return(val); 494 } 495 496 int aft_cmd = 1; 497 498 void 499 Prompt() 500 { 501 char *pconnect, *pauth; 502 503 if (!(mode & MODE_INTER)) 504 return; 505 506 if (!aft_cmd) 507 printf("\n"); 508 else 509 aft_cmd = 0; 510 511 if ( VarLocalAuth == LOCAL_AUTH ) 512 pauth = " ON "; 513 else 514 pauth = " on "; 515 if (IpcpFsm.state == ST_OPENED && phase == PHASE_NETWORK) 516 pconnect = "PPP"; 517 else 518 pconnect = "ppp"; 519 printf("%s%s%s> ", pconnect, pauth, VarShortHost); 520 fflush(stdout); 521 } 522 523 void 524 DecodeCommand(buff, nb, prompt) 525 char *buff; 526 int nb; 527 int prompt; 528 { 529 char *vector[20]; 530 char **argv; 531 int argc, val; 532 char *cp; 533 534 val = 1; 535 if (nb > 0) { 536 cp = buff + strcspn(buff, "\r\n"); 537 if (cp) 538 *cp = '\0'; 539 { 540 argc = MakeArgs(buff, &vector); 541 argv = vector; 542 543 if (argc > 0) 544 val = FindExec(Commands, argc, argv); 545 } 546 } 547 if (val && prompt) 548 Prompt(0); 549 } 550 551 static int 552 ShowCommand(list, argc, argv) 553 struct cmdtab *list; 554 int argc; 555 char **argv; 556 { 557 int val = 1; 558 559 if (argc > 0) 560 val = FindExec(ShowCommands, argc, argv); 561 else 562 printf("Use ``show ?'' to get a list.\n"); 563 return(val); 564 } 565 566 static int 567 TerminalCommand() 568 { 569 if (LcpFsm.state > ST_CLOSED) { 570 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]); 571 return(1); 572 } 573 if (!IsInteractive()) 574 return(1); 575 modem = OpenModem(mode); 576 if (modem < 0) { 577 printf("failed to open modem.\n"); 578 modem = 0; 579 return(1); 580 } 581 printf("Enter to terminal mode.\n"); 582 printf("Type `~?' for help.\n"); 583 TtyTermMode(); 584 return(0); 585 } 586 587 static int 588 QuitCommand(list, argc, argv) 589 struct cmdtab *list; 590 int argc; 591 char **argv; 592 { 593 if (mode & (MODE_DIRECT|MODE_DEDICATED|MODE_AUTO)) { 594 if (argc > 0 && (VarLocalAuth & LOCAL_AUTH)) { 595 Cleanup(EX_NORMAL); 596 mode &= ~MODE_INTER; 597 } else { 598 VarLocalAuth = LOCAL_NO_AUTH; 599 close(netfd); 600 close(1); 601 dup2(2, 1); /* Have to have something here or the modem will be 1 */ 602 netfd = -1; 603 mode &= ~MODE_INTER; 604 } 605 } else 606 Cleanup(EX_NORMAL); 607 return(1); 608 } 609 610 static int 611 CloseCommand() 612 { 613 LcpClose(); 614 return(1); 615 } 616 617 static int 618 DownCommand() 619 { 620 LcpDown(); 621 return(1); 622 } 623 624 static int SetModemSpeed(list, argc, argv) 625 struct cmdtab *list; 626 int argc; 627 char **argv; 628 { 629 int speed; 630 631 if (argc > 0) { 632 if (strcmp(*argv, "sync") == 0) { 633 VarSpeed = 0; 634 return(1); 635 } 636 speed = atoi(*argv); 637 if (IntToSpeed(speed) != B0) { 638 VarSpeed = speed; 639 return(1); 640 } 641 printf("invalid speed.\n"); 642 } 643 return(1); 644 } 645 646 static int SetRedialTimeout(list, argc, argv) 647 struct cmdtab *list; 648 int argc; 649 char **argv; 650 { 651 int timeout; 652 int tries; 653 654 if (argc == 1 || argc == 2 ) { 655 if (strcasecmp(argv[0], "random") == 0) { 656 VarRedialTimeout = -1; 657 printf("Using random redial timeout.\n"); 658 srandom(time(0)); 659 } 660 else { 661 timeout = atoi(argv[0]); 662 663 if (timeout >= 0) { 664 VarRedialTimeout = timeout; 665 } 666 else { 667 printf("invalid redial timeout\n"); 668 printf("Usage: %s %s\n", list->name, list->syntax); 669 } 670 } 671 if (argc == 2) { 672 tries = atoi(argv[1]); 673 674 if (tries >= 0) { 675 VarDialTries = tries; 676 } 677 else { 678 printf("invalid retry value\n"); 679 printf("Usage: %s %s\n", list->name, list->syntax); 680 } 681 } 682 } 683 else { 684 printf("Usage: %s %s\n", list->name, list->syntax); 685 } 686 return(1); 687 } 688 689 static int SetModemParity(list, argc, argv) 690 struct cmdtab *list; 691 int argc; 692 char **argv; 693 { 694 int parity; 695 696 if (argc > 0) { 697 parity = ChangeParity(*argv); 698 if (parity < 0) 699 printf("Invalid parity.\n"); 700 else 701 VarParity = parity; 702 } 703 return(1); 704 } 705 706 static int 707 SetDebugLevel(list, argc, argv) 708 struct cmdtab *list; 709 int argc; 710 char **argv; 711 { 712 int level, w; 713 714 for (level = 0; argc-- > 0; argv++) { 715 if (isdigit(**argv)) { 716 w = atoi(*argv); 717 if (w < 0 || w >= MAXLOGLEVEL) { 718 printf("invalid log level.\n"); 719 break; 720 } else 721 level |= (1 << w); 722 } else { 723 for (w = 0; w < MAXLOGLEVEL; w++) { 724 if (strcasecmp(*argv, LogLevelName[w]) == 0) { 725 level |= (1 << w); 726 continue; 727 } 728 } 729 } 730 } 731 loglevel = level; 732 return(1); 733 } 734 735 static int 736 SetEscape(list, argc, argv) 737 struct cmdtab *list; 738 int argc; 739 char **argv; 740 { 741 int code; 742 743 for (code = 0; code < 33; code++) 744 EscMap[code] = 0; 745 while (argc-- > 0) { 746 sscanf(*argv++, "%x", &code); 747 code &= 0xff; 748 EscMap[code >> 3] |= (1 << (code&7)); 749 EscMap[32] = 1; 750 } 751 return(1); 752 } 753 754 static int 755 SetInitialMRU(list, argc, argv) 756 struct cmdtab *list; 757 int argc; 758 char **argv; 759 { 760 int mru; 761 762 if (argc > 0) { 763 mru = atoi(*argv); 764 if (mru < 100) 765 printf("given value is too small.\n"); 766 else if (mru > MAX_MRU) 767 printf("given value is too big.\n"); 768 else 769 VarMRU = mru; 770 } 771 return(1); 772 } 773 774 static int 775 SetIdleTimeout(list, argc, argv) 776 struct cmdtab *list; 777 int argc; 778 char **argv; 779 { 780 if (argc-- > 0) { 781 VarIdleTimeout = atoi(*argv++); 782 if (argc-- > 0) { 783 VarLqrTimeout = atoi(*argv++); 784 if (VarLqrTimeout < 1) 785 VarLqrTimeout = 30; 786 if (argc > 0) { 787 VarRetryTimeout = atoi(*argv); 788 if (VarRetryTimeout < 1 || VarRetryTimeout > 10) 789 VarRetryTimeout = 3; 790 } 791 } 792 } 793 return(1); 794 } 795 796 struct in_addr 797 GetIpAddr(cp) 798 char *cp; 799 { 800 struct hostent *hp; 801 struct in_addr ipaddr; 802 803 hp = gethostbyname(cp); 804 if (hp && hp->h_addrtype == AF_INET) 805 bcopy(hp->h_addr, &ipaddr, hp->h_length); 806 else if (inet_aton(cp, &ipaddr) == 0) 807 ipaddr.s_addr = 0; 808 return(ipaddr); 809 } 810 811 static int 812 SetInterfaceAddr(list, argc, argv) 813 struct cmdtab *list; 814 int argc; 815 char **argv; 816 { 817 818 DefMyAddress.ipaddr.s_addr = DefHisAddress.ipaddr.s_addr = 0L; 819 if (argc > 0) { 820 ParseAddr(argc, argv++, 821 &DefMyAddress.ipaddr, &DefMyAddress.mask, &DefMyAddress.width); 822 if (--argc > 0) { 823 ParseAddr(argc, argv++, 824 &DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width); 825 if (--argc > 0) { 826 ifnetmask = GetIpAddr(*argv); 827 if (--argc > 0) { 828 ParseAddr(argc, argv++, 829 &DefTriggerAddress.ipaddr, 830 &DefTriggerAddress.mask, 831 &DefTriggerAddress.width); 832 } 833 } 834 } 835 } 836 /* 837 * For backwards compatibility, 0.0.0.0 means any address. 838 */ 839 if (DefMyAddress.ipaddr.s_addr == 0) { 840 DefMyAddress.mask.s_addr = 0; 841 DefMyAddress.width = 0; 842 } 843 if (DefHisAddress.ipaddr.s_addr == 0) { 844 DefHisAddress.mask.s_addr = 0; 845 DefHisAddress.width = 0; 846 } 847 848 if ((mode & MODE_AUTO) || 849 ((mode & MODE_DEDICATED) && dstsystem)) { 850 OsSetIpaddress(DefMyAddress.ipaddr, DefHisAddress.ipaddr, ifnetmask); 851 } 852 return(1); 853 } 854 855 #ifdef MSEXT 856 857 void 858 SetMSEXT(pri_addr, sec_addr, argc, argv) 859 struct in_addr *pri_addr; 860 struct in_addr *sec_addr; 861 int argc; 862 char **argv; 863 { 864 int dummyint; 865 struct in_addr dummyaddr; 866 867 pri_addr->s_addr = sec_addr->s_addr = 0L; 868 869 if( argc > 0 ) { 870 ParseAddr(argc, argv++, pri_addr, &dummyaddr, &dummyint); 871 if( --argc > 0 ) 872 ParseAddr(argc, argv++, sec_addr, &dummyaddr, &dummyint); 873 else 874 sec_addr->s_addr = pri_addr->s_addr; 875 } 876 877 /* 878 * if the primary/secondary ns entries are 0.0.0.0 we should 879 * set them to either the localhost's ip, or the values in 880 * /etc/resolv.conf ?? 881 * 882 * up to you if you want to implement this... 883 */ 884 885 } 886 887 static int 888 SetNS(list, argc, argv) 889 struct cmdtab *list; 890 int argc; 891 char **argv; 892 { 893 SetMSEXT(&ns_entries[0], &ns_entries[1], argc, argv); 894 return(1); 895 } 896 897 static int 898 SetNBNS(list, argc, argv) 899 struct cmdtab *list; 900 int argc; 901 char **argv; 902 { 903 SetMSEXT(&nbns_entries[0], &nbns_entries[1], argc, argv); 904 return(1); 905 } 906 907 #endif /* MS_EXT */ 908 909 #define VAR_AUTHKEY 0 910 #define VAR_DIAL 1 911 #define VAR_LOGIN 2 912 #define VAR_AUTHNAME 3 913 #define VAR_DEVICE 4 914 #define VAR_ACCMAP 5 915 #define VAR_PHONE 6 916 917 static int 918 SetVariable(list, argc, argv, param) 919 struct cmdtab *list; 920 int argc; 921 char **argv; 922 int param; 923 { 924 u_long map; 925 926 if (argc > 0) { 927 switch (param) { 928 case VAR_AUTHKEY: 929 strncpy(VarAuthKey, *argv, sizeof(VarAuthKey)-1); 930 VarAuthKey[sizeof(VarAuthKey)-1] = '\0'; 931 break; 932 case VAR_AUTHNAME: 933 strncpy(VarAuthName, *argv, sizeof(VarAuthName)-1); 934 VarAuthName[sizeof(VarAuthName)-1] = '\0'; 935 break; 936 case VAR_DIAL: 937 strncpy(VarDialScript, *argv, sizeof(VarDialScript)-1); 938 VarDialScript[sizeof(VarDialScript)-1] = '\0'; 939 break; 940 case VAR_LOGIN: 941 strncpy(VarLoginScript, *argv, sizeof(VarLoginScript)-1); 942 VarLoginScript[sizeof(VarLoginScript)-1] = '\0'; 943 break; 944 case VAR_DEVICE: 945 strncpy(VarDevice, *argv, sizeof(VarDevice)-1); 946 VarDevice[sizeof(VarDevice)-1] = '\0'; 947 break; 948 case VAR_ACCMAP: 949 sscanf(*argv, "%lx", &map); 950 VarAccmap = map; 951 break; 952 case VAR_PHONE: 953 strncpy(VarPhoneList, *argv, sizeof(VarPhoneList)-1); 954 VarPhoneList[sizeof(VarPhoneList)-1] = '\0'; 955 strcpy(VarPhoneCopy, VarPhoneList); 956 VarNextPhone = VarPhoneCopy; 957 break; 958 } 959 } 960 return(1); 961 } 962 963 static int SetCtsRts(list, argc, argv) 964 struct cmdtab *list; 965 int argc; 966 char **argv; 967 { 968 if (argc > 0) { 969 if (strcmp(*argv, "on") == 0) 970 VarCtsRts = TRUE; 971 else if (strcmp(*argv, "off") == 0) 972 VarCtsRts = FALSE; 973 else 974 printf("usage: set ctsrts [on|off].\n"); 975 } 976 return(1); 977 } 978 979 980 static int SetOpenMode(list, argc, argv) 981 struct cmdtab *list; 982 int argc; 983 char **argv; 984 { 985 if (argc > 0) { 986 if (strcmp(*argv, "active") == 0) 987 VarOpenMode = OPEN_ACTIVE; 988 else if (strcmp(*argv, "passive") == 0) 989 VarOpenMode = OPEN_PASSIVE; 990 else 991 printf("Invalid mode.\n"); 992 } 993 return(1); 994 } 995 static char StrChatStr[] = "chat-script"; 996 static char StrValue[] = "value"; 997 998 extern int SetIfilter(), SetOfilter(), SetDfilter(), SetAfilter(); 999 1000 struct cmdtab const SetCommands[] = { 1001 { "accmap", NULL, SetVariable, LOCAL_AUTH, 1002 "Set accmap value", "hex-value", (void *)VAR_ACCMAP}, 1003 { "afilter", NULL, SetAfilter, LOCAL_AUTH, 1004 "Set keep Alive filter", "..."}, 1005 { "authkey", "key", SetVariable, LOCAL_AUTH, 1006 "Set authentication key", "key", (void *)VAR_AUTHKEY}, 1007 { "authname", NULL, SetVariable, LOCAL_AUTH, 1008 "Set authentication name", "name", (void *)VAR_AUTHNAME}, 1009 { "ctsrts", NULL, SetCtsRts, LOCAL_AUTH, 1010 "Use CTS/RTS modem signalling", "[on|off]"}, 1011 { "debug", NULL, SetDebugLevel, LOCAL_AUTH, 1012 "Set debug level", StrValue}, 1013 { "device", "line", SetVariable, LOCAL_AUTH, 1014 "Set modem device name", "device-name", (void *)VAR_DEVICE}, 1015 { "dfilter", NULL, SetDfilter, LOCAL_AUTH, 1016 "Set demand filter", "..."}, 1017 { "dial", NULL, SetVariable, LOCAL_AUTH, 1018 "Set dialing script", StrChatStr, (void *)VAR_DIAL}, 1019 { "escape", NULL, SetEscape, LOCAL_AUTH, 1020 "Set escape characters", "hex-digit ..."}, 1021 { "ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, 1022 "Set destination address", "[src-addr [dst-addr [netmask [trg-addr]]]]"}, 1023 { "ifilter", NULL, SetIfilter, LOCAL_AUTH, 1024 "Set input filter", "..."}, 1025 { "login", NULL, SetVariable, LOCAL_AUTH, 1026 "Set login script", StrChatStr, (void *)VAR_LOGIN }, 1027 { "mru", "mtu", SetInitialMRU, LOCAL_AUTH, 1028 "Set Initial MRU value", StrValue }, 1029 { "ofilter", NULL, SetOfilter, LOCAL_AUTH, 1030 "Set output filter", "..." }, 1031 { "openmode", NULL, SetOpenMode, LOCAL_AUTH, 1032 "Set open mode", "[active|passive]"}, 1033 { "parity", NULL, SetModemParity, LOCAL_AUTH, 1034 "Set modem parity", "[odd|even|none]"}, 1035 { "phone", NULL, SetVariable, LOCAL_AUTH, 1036 "Set telephone number(s)", "phone1[:phone2[...]]", (void *)VAR_PHONE }, 1037 { "speed", NULL, SetModemSpeed, LOCAL_AUTH, 1038 "Set modem speed", "speed"}, 1039 { "timeout", NULL, SetIdleTimeout, LOCAL_AUTH, 1040 "Set Idle timeout", StrValue}, 1041 { "redial", NULL, SetRedialTimeout, LOCAL_AUTH, 1042 "Set Redial timeout", "value|random [dial_attempts]"}, 1043 #ifdef MSEXT 1044 { "ns", NULL, SetNS, LOCAL_AUTH, 1045 "Set NameServer", "pri-addr [sec-addr]"}, 1046 { "nbns", NULL, SetNBNS, LOCAL_AUTH, 1047 "Set NetBIOS NameServer", "pri-addr [sec-addr]"}, 1048 #endif /* MSEXT */ 1049 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 1050 "Display this message", StrNull, (void *)SetCommands}, 1051 { NULL, NULL, NULL }, 1052 }; 1053 1054 static int 1055 SetCommand(list, argc, argv) 1056 struct cmdtab *list; 1057 int argc; 1058 char **argv; 1059 { 1060 int val = 1; 1061 1062 if (argc > 0) 1063 val = FindExec(SetCommands, argc, argv); 1064 else 1065 printf("Use `set ?' to get a list or `set ? <var>' for syntax help.\n"); 1066 return(val); 1067 } 1068 1069 1070 static int 1071 AddCommand(list, argc, argv) 1072 struct cmdtab *list; 1073 int argc; 1074 char **argv; 1075 { 1076 struct in_addr dest, gateway, netmask; 1077 1078 if (argc == 3) { 1079 dest = GetIpAddr(argv[0]); 1080 netmask = GetIpAddr(argv[1]); 1081 if (strcmp(argv[2], "HISADDR") == 0) 1082 gateway = IpcpInfo.his_ipaddr; 1083 else 1084 gateway = GetIpAddr(argv[2]); 1085 OsSetRoute(RTM_ADD, dest, gateway, netmask); 1086 } else { 1087 printf("Usage: %s %s\n", list->name, list->syntax); 1088 } 1089 return(1); 1090 } 1091 1092 static int 1093 DeleteCommand(list, argc, argv) 1094 struct cmdtab *list; 1095 int argc; 1096 char **argv; 1097 { 1098 struct in_addr dest, gateway, netmask; 1099 1100 if (argc >= 2) { 1101 dest = GetIpAddr(argv[0]); 1102 if (strcmp(argv[1], "HISADDR") == 0) 1103 gateway = IpcpInfo.his_ipaddr; 1104 else 1105 gateway = GetIpAddr(argv[1]); 1106 netmask.s_addr = 0; 1107 if (argc == 3) { 1108 if (inet_aton(argv[1], &netmask) == 0) { 1109 printf("bad netmask value.\n"); 1110 return(1); 1111 } 1112 } 1113 OsSetRoute(RTM_DELETE, dest, gateway, netmask); 1114 } else if (argc == 1 && strcmp(argv[0], "ALL") == 0) { 1115 DeleteIfRoutes(0); 1116 } else { 1117 printf("Usage: %s %s\n", list->name, list->syntax); 1118 } 1119 return(1); 1120 } 1121 1122