command.c revision 51075
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: head/usr.sbin/ppp/command.c 51075 1999-09-08 07:34:52Z brian $ 21 * 22 */ 23#include <sys/param.h> 24#include <netinet/in_systm.h> 25#include <netinet/in.h> 26#include <netinet/ip.h> 27#include <arpa/inet.h> 28#include <sys/socket.h> 29#include <net/route.h> 30#include <netdb.h> 31#include <sys/un.h> 32 33#include <ctype.h> 34#include <errno.h> 35#include <fcntl.h> 36#include <paths.h> 37#include <stdio.h> 38#include <stdlib.h> 39#include <string.h> 40#include <sys/wait.h> 41#include <termios.h> 42#include <unistd.h> 43 44#ifndef NONAT 45#ifdef __FreeBSD__ 46#include <alias.h> 47#else 48#include "alias.h" 49#endif 50#endif 51#include "layer.h" 52#include "defs.h" 53#include "command.h" 54#include "mbuf.h" 55#include "log.h" 56#include "timer.h" 57#include "fsm.h" 58#include "lcp.h" 59#include "iplist.h" 60#include "throughput.h" 61#include "slcompress.h" 62#include "lqr.h" 63#include "hdlc.h" 64#include "ipcp.h" 65#ifndef NONAT 66#include "nat_cmd.h" 67#endif 68#include "systems.h" 69#include "filter.h" 70#include "descriptor.h" 71#include "main.h" 72#include "route.h" 73#include "ccp.h" 74#include "auth.h" 75#include "async.h" 76#include "link.h" 77#include "physical.h" 78#include "mp.h" 79#ifndef NORADIUS 80#include "radius.h" 81#endif 82#include "bundle.h" 83#include "server.h" 84#include "prompt.h" 85#include "chat.h" 86#include "chap.h" 87#include "cbcp.h" 88#include "datalink.h" 89#include "iface.h" 90 91/* ``set'' values */ 92#define VAR_AUTHKEY 0 93#define VAR_DIAL 1 94#define VAR_LOGIN 2 95#define VAR_AUTHNAME 3 96#define VAR_AUTOLOAD 4 97#define VAR_WINSIZE 5 98#define VAR_DEVICE 6 99#define VAR_ACCMAP 7 100#define VAR_MRRU 8 101#define VAR_MRU 9 102#define VAR_MTU 10 103#define VAR_OPENMODE 11 104#define VAR_PHONE 12 105#define VAR_HANGUP 13 106#define VAR_IDLETIMEOUT 14 107#define VAR_LQRPERIOD 15 108#define VAR_LCPRETRY 16 109#define VAR_CHAPRETRY 17 110#define VAR_PAPRETRY 18 111#define VAR_CCPRETRY 19 112#define VAR_IPCPRETRY 20 113#define VAR_DNS 21 114#define VAR_NBNS 22 115#define VAR_MODE 23 116#define VAR_CALLBACK 24 117#define VAR_CBCP 25 118#define VAR_CHOKED 26 119#define VAR_SENDPIPE 27 120#define VAR_RECVPIPE 28 121#define VAR_RADIUS 29 122#define VAR_CD 30 123#define VAR_PARITY 31 124#define VAR_CRTSCTS 32 125#define VAR_URGENTPORTS 33 126 127/* ``accept|deny|disable|enable'' masks */ 128#define NEG_HISMASK (1) 129#define NEG_MYMASK (2) 130 131/* ``accept|deny|disable|enable'' values */ 132#define NEG_ACFCOMP 40 133#define NEG_CHAP05 41 134#define NEG_CHAP80 42 135#define NEG_CHAP80LM 43 136#define NEG_DEFLATE 44 137#define NEG_DNS 45 138#define NEG_ENDDISC 46 139#define NEG_LQR 47 140#define NEG_PAP 48 141#define NEG_PPPDDEFLATE 49 142#define NEG_PRED1 50 143#define NEG_PROTOCOMP 51 144#define NEG_SHORTSEQ 52 145#define NEG_VJCOMP 53 146 147const char Version[] = "2.23"; 148 149static int ShowCommand(struct cmdargs const *); 150static int TerminalCommand(struct cmdargs const *); 151static int QuitCommand(struct cmdargs const *); 152static int OpenCommand(struct cmdargs const *); 153static int CloseCommand(struct cmdargs const *); 154static int DownCommand(struct cmdargs const *); 155static int SetCommand(struct cmdargs const *); 156static int LinkCommand(struct cmdargs const *); 157static int AddCommand(struct cmdargs const *); 158static int DeleteCommand(struct cmdargs const *); 159static int NegotiateCommand(struct cmdargs const *); 160static int ClearCommand(struct cmdargs const *); 161static int RunListCommand(struct cmdargs const *); 162static int IfaceAddCommand(struct cmdargs const *); 163static int IfaceDeleteCommand(struct cmdargs const *); 164static int IfaceClearCommand(struct cmdargs const *); 165static int SetProcTitle(struct cmdargs const *); 166#ifndef NONAT 167static int AliasEnable(struct cmdargs const *); 168static int AliasOption(struct cmdargs const *); 169#endif 170 171static const char * 172showcx(struct cmdtab const *cmd) 173{ 174 if (cmd->lauth & LOCAL_CX) 175 return "(c)"; 176 else if (cmd->lauth & LOCAL_CX_OPT) 177 return "(o)"; 178 179 return ""; 180} 181 182static int 183HelpCommand(struct cmdargs const *arg) 184{ 185 struct cmdtab const *cmd; 186 int n, cmax, dmax, cols, cxlen; 187 const char *cx; 188 189 if (!arg->prompt) { 190 log_Printf(LogWARN, "help: Cannot help without a prompt\n"); 191 return 0; 192 } 193 194 if (arg->argc > arg->argn) { 195 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++) 196 if ((cmd->lauth & arg->prompt->auth) && 197 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) || 198 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) { 199 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd)); 200 return 0; 201 } 202 return -1; 203 } 204 205 cmax = dmax = 0; 206 for (cmd = arg->cmdtab; cmd->func; cmd++) 207 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 208 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax) 209 cmax = n; 210 if ((n = strlen(cmd->helpmes)) > dmax) 211 dmax = n; 212 } 213 214 cols = 80 / (dmax + cmax + 3); 215 n = 0; 216 prompt_Printf(arg->prompt, "(o) = Optional context," 217 " (c) = Context required\n"); 218 for (cmd = arg->cmdtab; cmd->func; cmd++) 219 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 220 cx = showcx(cmd); 221 cxlen = cmax - strlen(cmd->name); 222 if (n % cols != 0) 223 prompt_Printf(arg->prompt, " "); 224 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s", 225 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes); 226 if (++n % cols == 0) 227 prompt_Printf(arg->prompt, "\n"); 228 } 229 if (n % cols != 0) 230 prompt_Printf(arg->prompt, "\n"); 231 232 return 0; 233} 234 235static int 236CloneCommand(struct cmdargs const *arg) 237{ 238 char namelist[LINE_LEN]; 239 char *name; 240 int f; 241 242 if (arg->argc == arg->argn) 243 return -1; 244 245 namelist[sizeof namelist - 1] = '\0'; 246 for (f = arg->argn; f < arg->argc; f++) { 247 strncpy(namelist, arg->argv[f], sizeof namelist - 1); 248 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 249 bundle_DatalinkClone(arg->bundle, arg->cx, name); 250 } 251 252 return 0; 253} 254 255static int 256RemoveCommand(struct cmdargs const *arg) 257{ 258 if (arg->argc != arg->argn) 259 return -1; 260 261 if (arg->cx->state != DATALINK_CLOSED) { 262 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n"); 263 return 2; 264 } 265 266 bundle_DatalinkRemove(arg->bundle, arg->cx); 267 return 0; 268} 269 270static int 271RenameCommand(struct cmdargs const *arg) 272{ 273 if (arg->argc != arg->argn + 1) 274 return -1; 275 276 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn])) 277 return 0; 278 279 log_Printf(LogWARN, "%s -> %s: target name already exists\n", 280 arg->cx->name, arg->argv[arg->argn]); 281 return 1; 282} 283 284int 285LoadCommand(struct cmdargs const *arg) 286{ 287 const char *err; 288 int n, mode; 289 290 mode = arg->bundle->phys_type.all; 291 292 if (arg->argn < arg->argc) { 293 for (n = arg->argn; n < arg->argc; n++) 294 if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) { 295 log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err); 296 return 1; 297 } 298 299 for (n = arg->argn; n < arg->argc; n++) { 300 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 301 system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx); 302 } 303 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 304 } else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) { 305 log_Printf(LogWARN, "default: %s\n", err); 306 return 1; 307 } else { 308 bundle_SetLabel(arg->bundle, "default"); 309 system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx); 310 bundle_SetLabel(arg->bundle, "default"); 311 } 312 313 return 0; 314} 315 316int 317SaveCommand(struct cmdargs const *arg) 318{ 319 log_Printf(LogWARN, "save command is not implemented (yet).\n"); 320 return 1; 321} 322 323static int 324DialCommand(struct cmdargs const *arg) 325{ 326 int res; 327 328 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO))) 329 || (!arg->cx && 330 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) { 331 log_Printf(LogWARN, "Manual dial is only available for auto and" 332 " interactive links\n"); 333 return 1; 334 } 335 336 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0) 337 return res; 338 339 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 340 341 return 0; 342} 343 344#define isinword(ch) (isalnum(ch) || (ch) == '_') 345 346static char * 347strstrword(char *big, const char *little) 348{ 349 /* Get the first occurance of the word ``little'' in ``big'' */ 350 char *pos; 351 int len; 352 353 pos = big; 354 len = strlen(little); 355 356 while ((pos = strstr(pos, little)) != NULL) 357 if ((pos != big && isinword(pos[-1])) || isinword(pos[len])) 358 pos++; 359 else if (pos != big && pos[-1] == '\\') 360 memmove(pos - 1, pos, strlen(pos) + 1); 361 else 362 break; 363 364 return pos; 365} 366 367static char * 368subst(char *tgt, const char *oldstr, const char *newstr) 369{ 370 /* tgt is a malloc()d area... realloc() as necessary */ 371 char *word, *ntgt; 372 int ltgt, loldstr, lnewstr, pos; 373 374 if ((word = strstrword(tgt, oldstr)) == NULL) 375 return tgt; 376 377 ltgt = strlen(tgt) + 1; 378 loldstr = strlen(oldstr); 379 lnewstr = strlen(newstr); 380 do { 381 pos = word - tgt; 382 if (loldstr > lnewstr) 383 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 384 if (loldstr != lnewstr) { 385 ntgt = realloc(tgt, ltgt += lnewstr - loldstr); 386 if (ntgt == NULL) 387 break; /* Oh wonderful ! */ 388 word = ntgt + pos; 389 tgt = ntgt; 390 } 391 if (lnewstr > loldstr) 392 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 393 bcopy(newstr, word, lnewstr); 394 } while ((word = strstrword(word, oldstr))); 395 396 return tgt; 397} 398 399void 400command_Expand(char **nargv, int argc, char const *const *oargv, 401 struct bundle *bundle, int inc0, pid_t pid) 402{ 403 int arg; 404 char pidstr[12]; 405 406 if (inc0) 407 arg = 0; /* Start at arg 0 */ 408 else { 409 nargv[0] = strdup(oargv[0]); 410 arg = 1; 411 } 412 snprintf(pidstr, sizeof pidstr, "%d", (int)pid); 413 for (; arg < argc; arg++) { 414 nargv[arg] = strdup(oargv[arg]); 415 nargv[arg] = subst(nargv[arg], "HISADDR", 416 inet_ntoa(bundle->ncp.ipcp.peer_ip)); 417 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name); 418 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name); 419 nargv[arg] = subst(nargv[arg], "MYADDR", inet_ntoa(bundle->ncp.ipcp.my_ip)); 420 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname); 421 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC", 422 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class, 423 bundle->ncp.mp.peer.enddisc.address, 424 bundle->ncp.mp.peer.enddisc.len)); 425 nargv[arg] = subst(nargv[arg], "ENDDISC", 426 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class, 427 bundle->ncp.mp.cfg.enddisc.address, 428 bundle->ncp.mp.cfg.enddisc.len)); 429 nargv[arg] = subst(nargv[arg], "PROCESSID", pidstr); 430 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle)); 431 } 432 nargv[arg] = NULL; 433} 434 435static int 436ShellCommand(struct cmdargs const *arg, int bg) 437{ 438 const char *shell; 439 pid_t shpid, pid; 440 441#ifdef SHELL_ONLY_INTERACTIVELY 442 /* we're only allowed to shell when we run ppp interactively */ 443 if (arg->prompt && arg->prompt->owner) { 444 log_Printf(LogWARN, "Can't start a shell from a network connection\n"); 445 return 1; 446 } 447#endif 448 449 if (arg->argc == arg->argn) { 450 if (!arg->prompt) { 451 log_Printf(LogWARN, "Can't start an interactive shell from" 452 " a config file\n"); 453 return 1; 454 } else if (arg->prompt->owner) { 455 log_Printf(LogWARN, "Can't start an interactive shell from" 456 " a socket connection\n"); 457 return 1; 458 } else if (bg) { 459 log_Printf(LogWARN, "Can only start an interactive shell in" 460 " the foreground mode\n"); 461 return 1; 462 } 463 } 464 465 pid = getpid(); 466 if ((shpid = fork()) == 0) { 467 int i, fd; 468 469 if ((shell = getenv("SHELL")) == 0) 470 shell = _PATH_BSHELL; 471 472 timer_TermService(); 473 474 if (arg->prompt) 475 fd = arg->prompt->fd_out; 476 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { 477 log_Printf(LogALERT, "Failed to open %s: %s\n", 478 _PATH_DEVNULL, strerror(errno)); 479 exit(1); 480 } 481 dup2(fd, STDIN_FILENO); 482 dup2(fd, STDOUT_FILENO); 483 dup2(fd, STDERR_FILENO); 484 for (i = getdtablesize(); i > STDERR_FILENO; i--) 485 fcntl(i, F_SETFD, 1); 486 487 setuid(geteuid()); 488 if (arg->argc > arg->argn) { 489 /* substitute pseudo args */ 490 char *argv[MAXARGS]; 491 int argc = arg->argc - arg->argn; 492 493 if (argc >= sizeof argv / sizeof argv[0]) { 494 argc = sizeof argv / sizeof argv[0] - 1; 495 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc); 496 } 497 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid); 498 if (bg) { 499 pid_t p; 500 501 p = getpid(); 502 if (daemon(1, 1) == -1) { 503 log_Printf(LogERROR, "%d: daemon: %s\n", (int)p, strerror(errno)); 504 exit(1); 505 } 506 } else if (arg->prompt) 507 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]); 508 execvp(argv[0], argv); 509 } else { 510 if (arg->prompt) 511 printf("ppp: Pausing until %s finishes\n", shell); 512 prompt_TtyOldMode(arg->prompt); 513 execl(shell, shell, NULL); 514 } 515 516 log_Printf(LogWARN, "exec() of %s failed: %s\n", 517 arg->argc > arg->argn ? arg->argv[arg->argn] : shell, 518 strerror(errno)); 519 _exit(255); 520 } 521 522 if (shpid == (pid_t) - 1) 523 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno)); 524 else { 525 int status; 526 waitpid(shpid, &status, 0); 527 } 528 529 if (arg->prompt && !arg->prompt->owner) 530 prompt_TtyCommandMode(arg->prompt); 531 532 return 0; 533} 534 535static int 536BgShellCommand(struct cmdargs const *arg) 537{ 538 if (arg->argc == arg->argn) 539 return -1; 540 return ShellCommand(arg, 1); 541} 542 543static int 544FgShellCommand(struct cmdargs const *arg) 545{ 546 return ShellCommand(arg, 0); 547} 548 549#ifndef NONAT 550static struct cmdtab const AliasCommands[] = 551{ 552 {"addr", NULL, nat_RedirectAddr, LOCAL_AUTH, 553 "static address translation", "nat addr [addr_local addr_alias]"}, 554 {"deny_incoming", NULL, AliasOption, LOCAL_AUTH, 555 "stop incoming connections", "nat deny_incoming yes|no", 556 (const void *) PKT_ALIAS_DENY_INCOMING}, 557 {"enable", NULL, AliasEnable, LOCAL_AUTH, 558 "enable NAT", "nat enable yes|no"}, 559 {"log", NULL, AliasOption, LOCAL_AUTH, 560 "log NAT link creation", "nat log yes|no", 561 (const void *) PKT_ALIAS_LOG}, 562 {"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection", 563 "nat port proto localaddr:port[-port] aliasport[-aliasport]"}, 564 {"pptp", NULL, nat_Pptp, LOCAL_AUTH, 565 "Set the PPTP address", "nat pptp IP"}, 566 {"proxy", NULL, nat_ProxyRule, LOCAL_AUTH, 567 "proxy control", "nat proxy server host[:port] ..."}, 568 {"same_ports", NULL, AliasOption, LOCAL_AUTH, 569 "try to leave port numbers unchanged", "nat same_ports yes|no", 570 (const void *) PKT_ALIAS_SAME_PORTS}, 571 {"unregistered_only", NULL, AliasOption, LOCAL_AUTH, 572 "translate unregistered (private) IP address space only", 573 "nat unregistered_only yes|no", 574 (const void *) PKT_ALIAS_UNREGISTERED_ONLY}, 575 {"use_sockets", NULL, AliasOption, LOCAL_AUTH, 576 "allocate host sockets", "nat use_sockets yes|no", 577 (const void *) PKT_ALIAS_USE_SOCKETS}, 578 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 579 "Display this message", "nat help|? [command]", AliasCommands}, 580 {NULL, NULL, NULL}, 581}; 582#endif 583 584static struct cmdtab const AllowCommands[] = { 585 {"modes", "mode", AllowModes, LOCAL_AUTH, 586 "Only allow certain ppp modes", "allow modes mode..."}, 587 {"users", "user", AllowUsers, LOCAL_AUTH, 588 "Only allow ppp access to certain users", "allow users logname..."}, 589 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 590 "Display this message", "allow help|? [command]", AllowCommands}, 591 {NULL, NULL, NULL}, 592}; 593 594static struct cmdtab const IfaceCommands[] = 595{ 596 {"add", NULL, IfaceAddCommand, LOCAL_AUTH, 597 "Add iface address", "iface add addr[/bits| mask] peer", NULL}, 598 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH, 599 "Add or change an iface address", "iface add! addr[/bits| mask] peer", 600 (void *)1}, 601 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH, 602 "Clear iface address(es)", "iface clear"}, 603 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH, 604 "Delete iface address", "iface delete addr", NULL}, 605 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH, 606 "Delete iface address", "iface delete addr", (void *)1}, 607 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH, 608 "Delete iface address", "iface delete addr", (void *)1}, 609 {"show", NULL, iface_Show, LOCAL_AUTH, 610 "Show iface address(es)", "iface show"}, 611 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 612 "Display this message", "nat help|? [command]", IfaceCommands}, 613 {NULL, NULL, NULL}, 614}; 615 616static struct cmdtab const Commands[] = { 617 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 618 "accept option request", "accept option .."}, 619 {"add", NULL, AddCommand, LOCAL_AUTH, 620 "add route", "add dest mask gateway", NULL}, 621 {NULL, "add!", AddCommand, LOCAL_AUTH, 622 "add or change route", "add! dest mask gateway", (void *)1}, 623 {"allow", "auth", RunListCommand, LOCAL_AUTH, 624 "Allow ppp access", "allow users|modes ....", AllowCommands}, 625 {"bg", "!bg", BgShellCommand, LOCAL_AUTH, 626 "Run a background command", "[!]bg command"}, 627 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT, 628 "Clear throughput statistics", 629 "clear ipcp|physical [current|overall|peak]..."}, 630 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX, 631 "Clone a link", "clone newname..."}, 632 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT, 633 "Close an FSM", "close [lcp|ccp]"}, 634 {"delete", NULL, DeleteCommand, LOCAL_AUTH, 635 "delete route", "delete dest", NULL}, 636 {NULL, "delete!", DeleteCommand, LOCAL_AUTH, 637 "delete a route if it exists", "delete! dest", (void *)1}, 638 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 639 "Deny option request", "deny option .."}, 640 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT, 641 "Dial and login", "dial|call [system ...]", NULL}, 642 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 643 "Disable option", "disable option .."}, 644 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT, 645 "Generate a down event", "down [ccp|lcp]"}, 646 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 647 "Enable option", "enable option .."}, 648 {"iface", "interface", RunListCommand, LOCAL_AUTH, 649 "interface control", "iface option ...", IfaceCommands}, 650 {"link", "datalink", LinkCommand, LOCAL_AUTH, 651 "Link specific commands", "link name command ..."}, 652 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT, 653 "Load settings", "load [system ...]"}, 654#ifndef NONAT 655 {"nat", "alias", RunListCommand, LOCAL_AUTH, 656 "NAT control", "nat option yes|no", AliasCommands}, 657#endif 658 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT, 659 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1}, 660 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH, 661 "Password for manipulation", "passwd LocalPassword"}, 662 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 663 "Quit PPP program", "quit|bye [all]"}, 664 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX, 665 "Remove a link", "remove"}, 666 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX, 667 "Rename a link", "rename name"}, 668 {"save", NULL, SaveCommand, LOCAL_AUTH, 669 "Save settings", "save"}, 670 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT, 671 "Set parameters", "set[up] var value"}, 672 {"shell", "!", FgShellCommand, LOCAL_AUTH, 673 "Run a subshell", "shell|! [sh command]"}, 674 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT, 675 "Show status and stats", "show var"}, 676 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX, 677 "Enter terminal mode", "term"}, 678 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 679 "Display this message", "help|? [command]", Commands}, 680 {NULL, NULL, NULL}, 681}; 682 683static int 684ShowEscape(struct cmdargs const *arg) 685{ 686 if (arg->cx->physical->async.cfg.EscMap[32]) { 687 int code, bit; 688 const char *sep = ""; 689 690 for (code = 0; code < 32; code++) 691 if (arg->cx->physical->async.cfg.EscMap[code]) 692 for (bit = 0; bit < 8; bit++) 693 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) { 694 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit); 695 sep = ", "; 696 } 697 prompt_Printf(arg->prompt, "\n"); 698 } 699 return 0; 700} 701 702static int 703ShowTimerList(struct cmdargs const *arg) 704{ 705 timer_Show(0, arg->prompt); 706 return 0; 707} 708 709static int 710ShowStopped(struct cmdargs const *arg) 711{ 712 prompt_Printf(arg->prompt, " Stopped Timer: LCP: "); 713 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load) 714 prompt_Printf(arg->prompt, "Disabled"); 715 else 716 prompt_Printf(arg->prompt, "%ld secs", 717 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS); 718 719 prompt_Printf(arg->prompt, ", CCP: "); 720 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load) 721 prompt_Printf(arg->prompt, "Disabled"); 722 else 723 prompt_Printf(arg->prompt, "%ld secs", 724 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS); 725 726 prompt_Printf(arg->prompt, "\n"); 727 728 return 0; 729} 730 731static int 732ShowVersion(struct cmdargs const *arg) 733{ 734 prompt_Printf(arg->prompt, "PPP Version %s - %s\n", Version, __DATE__); 735 return 0; 736} 737 738static int 739ShowProtocolStats(struct cmdargs const *arg) 740{ 741 struct link *l = command_ChooseLink(arg); 742 743 prompt_Printf(arg->prompt, "%s:\n", l->name); 744 link_ReportProtocolStatus(l, arg->prompt); 745 return 0; 746} 747 748static struct cmdtab const ShowCommands[] = { 749 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH, 750 "bundle details", "show bundle"}, 751 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT, 752 "CCP status", "show cpp"}, 753 {"compress", NULL, sl_Show, LOCAL_AUTH, 754 "VJ compression stats", "show compress"}, 755 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX, 756 "escape characters", "show escape"}, 757 {"filter", NULL, filter_Show, LOCAL_AUTH, 758 "packet filters", "show filter [in|out|dial|alive]"}, 759 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX, 760 "HDLC errors", "show hdlc"}, 761 {"iface", "interface", iface_Show, LOCAL_AUTH, 762 "Interface status", "show iface"}, 763 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH, 764 "IPCP status", "show ipcp"}, 765 {"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT, 766 "Protocol layers", "show layers"}, 767 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX, 768 "LCP status", "show lcp"}, 769 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX, 770 "(high-level) link info", "show link"}, 771 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH, 772 "available link names", "show links"}, 773 {"log", NULL, log_ShowLevel, LOCAL_AUTH, 774 "log levels", "show log"}, 775 {"mem", NULL, mbuf_Show, LOCAL_AUTH, 776 "mbuf allocations", "show mem"}, 777 {"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX, 778 "(low-level) link info", "show physical"}, 779 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH, 780 "multilink setup", "show mp"}, 781 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT, 782 "protocol summary", "show proto"}, 783 {"route", NULL, route_Show, LOCAL_AUTH, 784 "routing table", "show route"}, 785 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX, 786 "STOPPED timeout", "show stopped"}, 787 {"timers", NULL, ShowTimerList, LOCAL_AUTH, 788 "alarm timers", "show timers"}, 789 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 790 "version string", "show version"}, 791 {"who", NULL, log_ShowWho, LOCAL_AUTH, 792 "client list", "show who"}, 793 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 794 "Display this message", "show help|? [command]", ShowCommands}, 795 {NULL, NULL, NULL}, 796}; 797 798static struct cmdtab const * 799FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch) 800{ 801 int nmatch; 802 int len; 803 struct cmdtab const *found; 804 805 found = NULL; 806 len = strlen(str); 807 nmatch = 0; 808 while (cmds->func) { 809 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) { 810 if (cmds->name[len] == '\0') { 811 *pmatch = 1; 812 return cmds; 813 } 814 nmatch++; 815 found = cmds; 816 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) { 817 if (cmds->alias[len] == '\0') { 818 *pmatch = 1; 819 return cmds; 820 } 821 nmatch++; 822 found = cmds; 823 } 824 cmds++; 825 } 826 *pmatch = nmatch; 827 return found; 828} 829 830static const char * 831mkPrefix(int argc, char const *const *argv, char *tgt, int sz) 832{ 833 int f, tlen, len; 834 835 tlen = 0; 836 for (f = 0; f < argc && tlen < sz - 2; f++) { 837 if (f) 838 tgt[tlen++] = ' '; 839 len = strlen(argv[f]); 840 if (len > sz - tlen - 1) 841 len = sz - tlen - 1; 842 strncpy(tgt+tlen, argv[f], len); 843 tlen += len; 844 } 845 tgt[tlen] = '\0'; 846 return tgt; 847} 848 849static int 850FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn, 851 char const *const *argv, struct prompt *prompt, struct datalink *cx) 852{ 853 struct cmdtab const *cmd; 854 int val = 1; 855 int nmatch; 856 struct cmdargs arg; 857 char prefix[100]; 858 859 cmd = FindCommand(cmds, argv[argn], &nmatch); 860 if (nmatch > 1) 861 log_Printf(LogWARN, "%s: Ambiguous command\n", 862 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 863 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) { 864 if ((cmd->lauth & LOCAL_CX) && !cx) 865 /* We've got no context, but we require it */ 866 cx = bundle2datalink(bundle, NULL); 867 868 if ((cmd->lauth & LOCAL_CX) && !cx) 869 log_Printf(LogWARN, "%s: No context (use the `link' command)\n", 870 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 871 else { 872 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 873 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n", 874 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name); 875 cx = NULL; 876 } 877 arg.cmdtab = cmds; 878 arg.cmd = cmd; 879 arg.argc = argc; 880 arg.argn = argn+1; 881 arg.argv = argv; 882 arg.bundle = bundle; 883 arg.cx = cx; 884 arg.prompt = prompt; 885 val = (*cmd->func) (&arg); 886 } 887 } else 888 log_Printf(LogWARN, "%s: Invalid command\n", 889 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 890 891 if (val == -1) 892 log_Printf(LogWARN, "Usage: %s\n", cmd->syntax); 893 else if (val) 894 log_Printf(LogWARN, "%s: Failed %d\n", 895 mkPrefix(argn+1, argv, prefix, sizeof prefix), val); 896 897 return val; 898} 899 900int 901command_Interpret(char *buff, int nb, char *argv[MAXARGS]) 902{ 903 char *cp; 904 905 if (nb > 0) { 906 cp = buff + strcspn(buff, "\r\n"); 907 if (cp) 908 *cp = '\0'; 909 return MakeArgs(buff, argv, MAXARGS); 910 } 911 return 0; 912} 913 914static int 915arghidden(int argc, char const *const *argv, int n) 916{ 917 /* Is arg n of the given command to be hidden from the log ? */ 918 919 /* set authkey xxxxx */ 920 /* set key xxxxx */ 921 if (n == 2 && !strncasecmp(argv[0], "se", 2) && 922 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2))) 923 return 1; 924 925 /* passwd xxxxx */ 926 if (n == 1 && !strncasecmp(argv[0], "p", 1)) 927 return 1; 928 929 /* set server port xxxxx .... */ 930 if (n == 3 && !strncasecmp(argv[0], "se", 2) && 931 !strncasecmp(argv[1], "se", 2)) 932 return 1; 933 934 return 0; 935} 936 937void 938command_Run(struct bundle *bundle, int argc, char const *const *argv, 939 struct prompt *prompt, const char *label, struct datalink *cx) 940{ 941 if (argc > 0) { 942 if (log_IsKept(LogCOMMAND)) { 943 char buf[LINE_LEN]; 944 int f, n; 945 946 if (label) { 947 strncpy(buf, label, sizeof buf - 3); 948 buf[sizeof buf - 3] = '\0'; 949 strcat(buf, ": "); 950 n = strlen(buf); 951 } else { 952 *buf = '\0'; 953 n = 0; 954 } 955 buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */ 956 957 for (f = 0; f < argc; f++) { 958 if (n < sizeof buf - 1 && f) 959 buf[n++] = ' '; 960 if (arghidden(argc, argv, f)) 961 strncpy(buf+n, "********", sizeof buf - n - 1); 962 else 963 strncpy(buf+n, argv[f], sizeof buf - n - 1); 964 n += strlen(buf+n); 965 } 966 log_Printf(LogCOMMAND, "%s\n", buf); 967 } 968 FindExec(bundle, Commands, argc, 0, argv, prompt, cx); 969 } 970} 971 972void 973command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt, 974 const char *label) 975{ 976 int argc; 977 char *argv[MAXARGS]; 978 979 argc = command_Interpret(buff, nb, argv); 980 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL); 981} 982 983static int 984ShowCommand(struct cmdargs const *arg) 985{ 986 if (!arg->prompt) 987 log_Printf(LogWARN, "show: Cannot show without a prompt\n"); 988 else if (arg->argc > arg->argn) 989 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv, 990 arg->prompt, arg->cx); 991 else 992 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n"); 993 994 return 0; 995} 996 997static int 998TerminalCommand(struct cmdargs const *arg) 999{ 1000 if (!arg->prompt) { 1001 log_Printf(LogWARN, "term: Need a prompt\n"); 1002 return 1; 1003 } 1004 1005 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) { 1006 prompt_Printf(arg->prompt, "LCP state is [%s]\n", 1007 State2Nam(arg->cx->physical->link.lcp.fsm.state)); 1008 return 1; 1009 } 1010 1011 datalink_Up(arg->cx, 0, 0); 1012 prompt_TtyTermMode(arg->prompt, arg->cx); 1013 return 0; 1014} 1015 1016static int 1017QuitCommand(struct cmdargs const *arg) 1018{ 1019 if (!arg->prompt || prompt_IsController(arg->prompt) || 1020 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") && 1021 (arg->prompt->auth & LOCAL_AUTH))) 1022 Cleanup(EX_NORMAL); 1023 if (arg->prompt) 1024 prompt_Destroy(arg->prompt, 1); 1025 1026 return 0; 1027} 1028 1029static int 1030OpenCommand(struct cmdargs const *arg) 1031{ 1032 if (arg->argc == arg->argn) 1033 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 1034 else if (arg->argc == arg->argn + 1) { 1035 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1036 struct datalink *cx = arg->cx ? 1037 arg->cx : bundle2datalink(arg->bundle, NULL); 1038 if (cx) { 1039 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 1040 fsm_Reopen(&cx->physical->link.lcp.fsm); 1041 else 1042 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1); 1043 } else 1044 log_Printf(LogWARN, "open lcp: You must specify a link\n"); 1045 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1046 struct fsm *fp; 1047 1048 fp = &command_ChooseLink(arg)->ccp.fsm; 1049 if (fp->link->lcp.fsm.state != ST_OPENED) 1050 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n"); 1051 else if (fp->state == ST_OPENED) 1052 fsm_Reopen(fp); 1053 else { 1054 fp->open_mode = 0; /* Not passive any more */ 1055 if (fp->state == ST_STOPPED) { 1056 fsm_Down(fp); 1057 fsm_Up(fp); 1058 } else { 1059 fsm_Up(fp); 1060 fsm_Open(fp); 1061 } 1062 } 1063 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) { 1064 if (arg->cx) 1065 log_Printf(LogWARN, "open ipcp: You need not specify a link\n"); 1066 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 1067 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm); 1068 else 1069 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1); 1070 } else 1071 return -1; 1072 } else 1073 return -1; 1074 1075 return 0; 1076} 1077 1078static int 1079CloseCommand(struct cmdargs const *arg) 1080{ 1081 if (arg->argc == arg->argn) 1082 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN); 1083 else if (arg->argc == arg->argn + 1) { 1084 if (!strcasecmp(arg->argv[arg->argn], "lcp")) 1085 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP); 1086 else if (!strcasecmp(arg->argv[arg->argn], "ccp") || 1087 !strcasecmp(arg->argv[arg->argn], "ccp!")) { 1088 struct fsm *fp; 1089 1090 fp = &command_ChooseLink(arg)->ccp.fsm; 1091 if (fp->state == ST_OPENED) { 1092 fsm_Close(fp); 1093 if (arg->argv[arg->argn][3] == '!') 1094 fp->open_mode = 0; /* Stay ST_CLOSED */ 1095 else 1096 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */ 1097 } 1098 } else 1099 return -1; 1100 } else 1101 return -1; 1102 1103 return 0; 1104} 1105 1106static int 1107DownCommand(struct cmdargs const *arg) 1108{ 1109 if (arg->argc == arg->argn) { 1110 if (arg->cx) 1111 datalink_Down(arg->cx, CLOSE_STAYDOWN); 1112 else 1113 bundle_Down(arg->bundle, CLOSE_STAYDOWN); 1114 } else if (arg->argc == arg->argn + 1) { 1115 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1116 if (arg->cx) 1117 datalink_Down(arg->cx, CLOSE_LCP); 1118 else 1119 bundle_Down(arg->bundle, CLOSE_LCP); 1120 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1121 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm : 1122 &arg->bundle->ncp.mp.link.ccp.fsm; 1123 fsm2initial(fp); 1124 } else 1125 return -1; 1126 } else 1127 return -1; 1128 1129 return 0; 1130} 1131 1132static int 1133SetModemSpeed(struct cmdargs const *arg) 1134{ 1135 long speed; 1136 char *end; 1137 1138 if (arg->argc > arg->argn && *arg->argv[arg->argn]) { 1139 if (arg->argc > arg->argn+1) { 1140 log_Printf(LogWARN, "SetModemSpeed: Too many arguments"); 1141 return -1; 1142 } 1143 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) { 1144 physical_SetSync(arg->cx->physical); 1145 return 0; 1146 } 1147 end = NULL; 1148 speed = strtol(arg->argv[arg->argn], &end, 10); 1149 if (*end) { 1150 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", 1151 arg->argv[arg->argn]); 1152 return -1; 1153 } 1154 if (physical_SetSpeed(arg->cx->physical, speed)) 1155 return 0; 1156 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]); 1157 } else 1158 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n"); 1159 1160 return -1; 1161} 1162 1163static int 1164SetStoppedTimeout(struct cmdargs const *arg) 1165{ 1166 struct link *l = &arg->cx->physical->link; 1167 1168 l->lcp.fsm.StoppedTimer.load = 0; 1169 l->ccp.fsm.StoppedTimer.load = 0; 1170 if (arg->argc <= arg->argn+2) { 1171 if (arg->argc > arg->argn) { 1172 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS; 1173 if (arg->argc > arg->argn+1) 1174 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS; 1175 } 1176 return 0; 1177 } 1178 return -1; 1179} 1180 1181#define ismask(x) \ 1182 (*x == '0' && strlen(x) == 4 && strspn(x+1, "0123456789.") == 3) 1183 1184static int 1185SetServer(struct cmdargs const *arg) 1186{ 1187 int res = -1; 1188 1189 if (arg->argc > arg->argn && arg->argc < arg->argn+4) { 1190 const char *port, *passwd, *mask; 1191 1192 /* What's what ? */ 1193 port = arg->argv[arg->argn]; 1194 if (arg->argc == arg->argn + 2) { 1195 passwd = arg->argv[arg->argn+1]; 1196 mask = NULL; 1197 } else if (arg->argc == arg->argn + 3) { 1198 passwd = arg->argv[arg->argn+1]; 1199 mask = arg->argv[arg->argn+2]; 1200 if (!ismask(mask)) 1201 return -1; 1202 } else if (strcasecmp(port, "none") == 0) { 1203 if (server_Close(arg->bundle)) 1204 log_Printf(LogPHASE, "Disabled server port.\n"); 1205 return 0; 1206 } else 1207 return -1; 1208 1209 strncpy(server.passwd, passwd, sizeof server.passwd - 1); 1210 server.passwd[sizeof server.passwd - 1] = '\0'; 1211 1212 if (*port == '/') { 1213 mode_t imask; 1214 char *ptr, name[LINE_LEN + 12]; 1215 1216 if (mask != NULL) { 1217 unsigned m; 1218 1219 if (sscanf(mask, "%o", &m) == 1) 1220 imask = m; 1221 else 1222 return -1; 1223 } else 1224 imask = (mode_t)-1; 1225 1226 ptr = strstr(port, "%d"); 1227 if (ptr) { 1228 snprintf(name, sizeof name, "%.*s%d%s", 1229 (int)(ptr - port), port, arg->bundle->unit, ptr + 2); 1230 port = name; 1231 } 1232 res = server_LocalOpen(arg->bundle, port, imask); 1233 } else { 1234 int iport, add = 0; 1235 1236 if (mask != NULL) 1237 return -1; 1238 1239 if (*port == '+') { 1240 port++; 1241 add = 1; 1242 } 1243 if (strspn(port, "0123456789") != strlen(port)) { 1244 struct servent *s; 1245 1246 if ((s = getservbyname(port, "tcp")) == NULL) { 1247 iport = 0; 1248 log_Printf(LogWARN, "%s: Invalid port or service\n", port); 1249 } else 1250 iport = ntohs(s->s_port); 1251 } else 1252 iport = atoi(port); 1253 1254 if (iport) { 1255 if (add) 1256 iport += arg->bundle->unit; 1257 res = server_TcpOpen(arg->bundle, iport); 1258 } else 1259 res = -1; 1260 } 1261 } 1262 1263 return res; 1264} 1265 1266static int 1267SetEscape(struct cmdargs const *arg) 1268{ 1269 int code; 1270 int argc = arg->argc - arg->argn; 1271 char const *const *argv = arg->argv + arg->argn; 1272 1273 for (code = 0; code < 33; code++) 1274 arg->cx->physical->async.cfg.EscMap[code] = 0; 1275 1276 while (argc-- > 0) { 1277 sscanf(*argv++, "%x", &code); 1278 code &= 0xff; 1279 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7)); 1280 arg->cx->physical->async.cfg.EscMap[32] = 1; 1281 } 1282 return 0; 1283} 1284 1285static int 1286SetInterfaceAddr(struct cmdargs const *arg) 1287{ 1288 struct ipcp *ipcp = &arg->bundle->ncp.ipcp; 1289 const char *hisaddr; 1290 1291 if (arg->argc > arg->argn + 4) 1292 return -1; 1293 1294 hisaddr = NULL; 1295 memset(&ipcp->cfg.my_range, '\0', sizeof ipcp->cfg.my_range); 1296 memset(&ipcp->cfg.peer_range, '\0', sizeof ipcp->cfg.peer_range); 1297 ipcp->cfg.HaveTriggerAddress = 0; 1298 ipcp->cfg.netmask.s_addr = INADDR_ANY; 1299 iplist_reset(&ipcp->cfg.peer_list); 1300 1301 if (arg->argc > arg->argn) { 1302 if (!ParseAddr(ipcp, arg->argv[arg->argn], 1303 &ipcp->cfg.my_range.ipaddr, &ipcp->cfg.my_range.mask, 1304 &ipcp->cfg.my_range.width)) 1305 return 1; 1306 if (arg->argc > arg->argn+1) { 1307 hisaddr = arg->argv[arg->argn+1]; 1308 if (arg->argc > arg->argn+2) { 1309 ipcp->ifmask = ipcp->cfg.netmask = GetIpAddr(arg->argv[arg->argn+2]); 1310 if (arg->argc > arg->argn+3) { 1311 ipcp->cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]); 1312 ipcp->cfg.HaveTriggerAddress = 1; 1313 } 1314 } 1315 } 1316 } 1317 1318 /* 0.0.0.0 means any address (0 bits) */ 1319 if (ipcp->cfg.my_range.ipaddr.s_addr == INADDR_ANY) { 1320 ipcp->cfg.my_range.mask.s_addr = INADDR_ANY; 1321 ipcp->cfg.my_range.width = 0; 1322 } 1323 ipcp->my_ip.s_addr = ipcp->cfg.my_range.ipaddr.s_addr; 1324 bundle_AdjustFilters(arg->bundle, &ipcp->my_ip, NULL); 1325 1326 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr, 1327 arg->bundle->phys_type.all & PHYS_AUTO)) 1328 return 4; 1329 1330 return 0; 1331} 1332 1333static int 1334SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq, 1335 u_int *maxtrm, int def) 1336{ 1337 if (argc == 0) { 1338 *timeout = DEF_FSMRETRY; 1339 *maxreq = def; 1340 if (maxtrm != NULL) 1341 *maxtrm = def; 1342 } else { 1343 long l = atol(argv[0]); 1344 1345 if (l < MIN_FSMRETRY) { 1346 log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n", 1347 l, MIN_FSMRETRY); 1348 return 1; 1349 } else 1350 *timeout = l; 1351 1352 if (argc > 1) { 1353 l = atol(argv[1]); 1354 if (l < 1) { 1355 log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l); 1356 l = 1; 1357 } 1358 *maxreq = l; 1359 1360 if (argc > 2 && maxtrm != NULL) { 1361 l = atol(argv[2]); 1362 if (l < 1) { 1363 log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l); 1364 l = 1; 1365 } 1366 *maxtrm = l; 1367 } 1368 } 1369 } 1370 1371 return 0; 1372} 1373 1374static int 1375SetVariable(struct cmdargs const *arg) 1376{ 1377 long long_val, param = (long)arg->cmd->args; 1378 int mode, dummyint, f, first; 1379 const char *argp; 1380 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 1381 const char *err = NULL; 1382 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 1383 struct in_addr dummyaddr, *addr; 1384 1385 if (arg->argc > arg->argn) 1386 argp = arg->argv[arg->argn]; 1387 else 1388 argp = ""; 1389 1390 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 1391 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n", 1392 arg->cmd->name); 1393 return 1; 1394 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1395 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n", 1396 arg->cmd->name, cx->name); 1397 cx = NULL; 1398 } 1399 1400 switch (param) { 1401 case VAR_AUTHKEY: 1402 strncpy(arg->bundle->cfg.auth.key, argp, 1403 sizeof arg->bundle->cfg.auth.key - 1); 1404 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0'; 1405 break; 1406 1407 case VAR_AUTHNAME: 1408 switch (bundle_Phase(arg->bundle)) { 1409 case PHASE_DEAD: 1410 case PHASE_ESTABLISH: 1411 strncpy(arg->bundle->cfg.auth.name, argp, 1412 sizeof arg->bundle->cfg.auth.name - 1); 1413 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0'; 1414 break; 1415 default: 1416 err = "set authname: Only available at phase DEAD/ESTABLISH\n"; 1417 log_Printf(LogWARN, err); 1418 break; 1419 } 1420 break; 1421 1422 case VAR_AUTOLOAD: 1423 if (arg->argc == arg->argn + 3) { 1424 int v1, v2, v3; 1425 char *end; 1426 1427 v1 = strtol(arg->argv[arg->argn], &end, 0); 1428 if (v1 < 0 || *end) { 1429 log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n", 1430 arg->argv[arg->argn]); 1431 return 1; 1432 } 1433 1434 v2 = strtol(arg->argv[arg->argn + 1], &end, 0); 1435 if (v2 < 0 || *end) { 1436 log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n", 1437 arg->argv[arg->argn + 1]); 1438 return 1; 1439 } 1440 if (v2 < v1) { 1441 v3 = v1; 1442 v1 = v2; 1443 v2 = v3; 1444 } 1445 1446 v3 = strtol(arg->argv[arg->argn + 2], &end, 0); 1447 if (v3 <= 0 || *end) { 1448 log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n", 1449 arg->argv[arg->argn + 2]); 1450 return 1; 1451 } 1452 1453 arg->bundle->ncp.mp.cfg.autoload.min = v1; 1454 arg->bundle->ncp.mp.cfg.autoload.max = v2; 1455 arg->bundle->ncp.mp.cfg.autoload.period = v3; 1456 mp_RestartAutoloadTimer(&arg->bundle->ncp.mp); 1457 } else { 1458 err = "Set autoload requires three arguments\n"; 1459 log_Printf(LogWARN, err); 1460 } 1461 break; 1462 1463 case VAR_DIAL: 1464 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1); 1465 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0'; 1466 break; 1467 1468 case VAR_LOGIN: 1469 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1); 1470 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0'; 1471 break; 1472 1473 case VAR_WINSIZE: 1474 if (arg->argc > arg->argn) { 1475 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]); 1476 if (l->ccp.cfg.deflate.out.winsize < 8 || 1477 l->ccp.cfg.deflate.out.winsize > 15) { 1478 log_Printf(LogWARN, "%d: Invalid outgoing window size\n", 1479 l->ccp.cfg.deflate.out.winsize); 1480 l->ccp.cfg.deflate.out.winsize = 15; 1481 } 1482 if (arg->argc > arg->argn+1) { 1483 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]); 1484 if (l->ccp.cfg.deflate.in.winsize < 8 || 1485 l->ccp.cfg.deflate.in.winsize > 15) { 1486 log_Printf(LogWARN, "%d: Invalid incoming window size\n", 1487 l->ccp.cfg.deflate.in.winsize); 1488 l->ccp.cfg.deflate.in.winsize = 15; 1489 } 1490 } else 1491 l->ccp.cfg.deflate.in.winsize = 0; 1492 } else { 1493 err = "No window size specified\n"; 1494 log_Printf(LogWARN, err); 1495 } 1496 break; 1497 1498 case VAR_DEVICE: 1499 physical_SetDeviceList(cx->physical, arg->argc - arg->argn, 1500 arg->argv + arg->argn); 1501 break; 1502 1503 case VAR_ACCMAP: 1504 if (arg->argc > arg->argn) { 1505 u_long ulong_val; 1506 sscanf(argp, "%lx", &ulong_val); 1507 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val; 1508 } else { 1509 err = "No accmap specified\n"; 1510 log_Printf(LogWARN, err); 1511 } 1512 break; 1513 1514 case VAR_MODE: 1515 mode = Nam2mode(argp); 1516 if (mode == PHYS_NONE || mode == PHYS_ALL) { 1517 log_Printf(LogWARN, "%s: Invalid mode\n", argp); 1518 return -1; 1519 } 1520 bundle_SetMode(arg->bundle, cx, mode); 1521 break; 1522 1523 case VAR_MRRU: 1524 switch (bundle_Phase(arg->bundle)) { 1525 case PHASE_DEAD: 1526 break; 1527 case PHASE_ESTABLISH: 1528 /* Make sure none of our links are DATALINK_LCP or greater */ 1529 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 1530 log_Printf(LogWARN, "mrru: Only changable before LCP negotiations\n"); 1531 return 1; 1532 } 1533 break; 1534 default: 1535 log_Printf(LogWARN, "mrru: Only changable at phase DEAD/ESTABLISH\n"); 1536 return 1; 1537 } 1538 long_val = atol(argp); 1539 if (long_val && long_val < MIN_MRU) { 1540 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU); 1541 return 1; 1542 } else if (long_val > MAX_MRU) { 1543 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU); 1544 return 1; 1545 } else 1546 arg->bundle->ncp.mp.cfg.mrru = long_val; 1547 break; 1548 1549 case VAR_MRU: 1550 long_val = atol(argp); 1551 if (long_val == 0) 1552 l->lcp.cfg.mru = DEF_MRU; 1553 else if (long_val < MIN_MRU) { 1554 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU); 1555 return 1; 1556 } else if (long_val > MAX_MRU) { 1557 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU); 1558 return 1; 1559 } else 1560 l->lcp.cfg.mru = long_val; 1561 break; 1562 1563 case VAR_MTU: 1564 long_val = atol(argp); 1565 if (long_val && long_val < MIN_MTU) { 1566 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU); 1567 return 1; 1568 } else if (long_val > MAX_MTU) { 1569 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU); 1570 return 1; 1571 } else 1572 arg->bundle->cfg.mtu = long_val; 1573 break; 1574 1575 case VAR_OPENMODE: 1576 if (strcasecmp(argp, "active") == 0) 1577 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ? 1578 atoi(arg->argv[arg->argn+1]) : 1; 1579 else if (strcasecmp(argp, "passive") == 0) 1580 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE; 1581 else { 1582 err = "%s: Invalid openmode\n"; 1583 log_Printf(LogWARN, err, argp); 1584 } 1585 break; 1586 1587 case VAR_PHONE: 1588 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1); 1589 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0'; 1590 cx->phone.alt = cx->phone.next = NULL; 1591 break; 1592 1593 case VAR_HANGUP: 1594 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1); 1595 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0'; 1596 break; 1597 1598 case VAR_IDLETIMEOUT: 1599 if (arg->argc > arg->argn+2) 1600 err = "Too many idle timeout values\n"; 1601 else if (arg->argc == arg->argn) 1602 err = "Too few idle timeout values\n"; 1603 else { 1604 int timeout, min; 1605 1606 timeout = atoi(argp); 1607 min = arg->argc == arg->argn + 2 ? atoi(arg->argv[arg->argn + 1]) : -1; 1608 bundle_SetIdleTimer(arg->bundle, timeout, min); 1609 } 1610 if (err) 1611 log_Printf(LogWARN, err); 1612 break; 1613 1614 case VAR_LQRPERIOD: 1615 long_val = atol(argp); 1616 if (long_val < MIN_LQRPERIOD) { 1617 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n", 1618 long_val, MIN_LQRPERIOD); 1619 return 1; 1620 } else 1621 l->lcp.cfg.lqrperiod = long_val; 1622 break; 1623 1624 case VAR_LCPRETRY: 1625 return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 1626 &cx->physical->link.lcp.cfg.fsm.timeout, 1627 &cx->physical->link.lcp.cfg.fsm.maxreq, 1628 &cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 1629 break; 1630 1631 case VAR_CHAPRETRY: 1632 return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 1633 &cx->chap.auth.cfg.fsm.timeout, 1634 &cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES); 1635 break; 1636 1637 case VAR_PAPRETRY: 1638 return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 1639 &cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq, 1640 NULL, DEF_FSMAUTHTRIES); 1641 break; 1642 1643 case VAR_CCPRETRY: 1644 return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 1645 &l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq, 1646 &l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES); 1647 break; 1648 1649 case VAR_IPCPRETRY: 1650 return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 1651 &arg->bundle->ncp.ipcp.cfg.fsm.timeout, 1652 &arg->bundle->ncp.ipcp.cfg.fsm.maxreq, 1653 &arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 1654 break; 1655 1656 case VAR_NBNS: 1657 case VAR_DNS: 1658 if (param == VAR_DNS) 1659 addr = arg->bundle->ncp.ipcp.cfg.ns.dns; 1660 else 1661 addr = arg->bundle->ncp.ipcp.cfg.ns.nbns; 1662 1663 addr[0].s_addr = addr[1].s_addr = INADDR_ANY; 1664 1665 if (arg->argc > arg->argn) { 1666 ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn], 1667 addr, &dummyaddr, &dummyint); 1668 if (arg->argc > arg->argn+1) 1669 ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn + 1], 1670 addr + 1, &dummyaddr, &dummyint); 1671 1672 if (addr[1].s_addr == INADDR_ANY) 1673 addr[1].s_addr = addr[0].s_addr; 1674 if (addr[0].s_addr == INADDR_ANY) 1675 addr[0].s_addr = addr[1].s_addr; 1676 } 1677 break; 1678 1679 case VAR_CALLBACK: 1680 cx->cfg.callback.opmask = 0; 1681 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) { 1682 if (!strcasecmp(arg->argv[dummyint], "auth")) 1683 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH); 1684 else if (!strcasecmp(arg->argv[dummyint], "cbcp")) 1685 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP); 1686 else if (!strcasecmp(arg->argv[dummyint], "e.164")) { 1687 if (dummyint == arg->argc - 1) 1688 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n"); 1689 else { 1690 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164); 1691 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint], 1692 sizeof cx->cfg.callback.msg - 1); 1693 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0'; 1694 } 1695 } else if (!strcasecmp(arg->argv[dummyint], "none")) 1696 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE); 1697 else 1698 return -1; 1699 } 1700 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE)) 1701 cx->cfg.callback.opmask = 0; 1702 break; 1703 1704 case VAR_CBCP: 1705 cx->cfg.cbcp.delay = 0; 1706 *cx->cfg.cbcp.phone = '\0'; 1707 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY; 1708 if (arg->argc > arg->argn) { 1709 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn], 1710 sizeof cx->cfg.cbcp.phone - 1); 1711 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0'; 1712 if (arg->argc > arg->argn + 1) { 1713 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]); 1714 if (arg->argc > arg->argn + 2) { 1715 long_val = atol(arg->argv[arg->argn + 2]); 1716 if (long_val < MIN_FSMRETRY) 1717 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n", 1718 long_val, MIN_FSMRETRY); 1719 else 1720 cx->cfg.cbcp.fsmretry = long_val; 1721 } 1722 } 1723 } 1724 break; 1725 1726 case VAR_CHOKED: 1727 arg->bundle->cfg.choked.timeout = atoi(argp); 1728 if (arg->bundle->cfg.choked.timeout <= 0) 1729 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT; 1730 break; 1731 1732 case VAR_SENDPIPE: 1733 long_val = atol(argp); 1734 arg->bundle->ncp.ipcp.cfg.sendpipe = long_val; 1735 break; 1736 1737 case VAR_RECVPIPE: 1738 long_val = atol(argp); 1739 arg->bundle->ncp.ipcp.cfg.recvpipe = long_val; 1740 break; 1741 1742#ifndef NORADIUS 1743 case VAR_RADIUS: 1744 if (!*argp) 1745 *arg->bundle->radius.cfg.file = '\0'; 1746 else if (access(argp, R_OK)) { 1747 log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno)); 1748 return 1; 1749 } else { 1750 strncpy(arg->bundle->radius.cfg.file, argp, 1751 sizeof arg->bundle->radius.cfg.file - 1); 1752 arg->bundle->radius.cfg.file 1753 [sizeof arg->bundle->radius.cfg.file - 1] = '\0'; 1754 } 1755 break; 1756#endif 1757 1758 case VAR_CD: 1759 if (*argp) { 1760 long_val = atol(argp); 1761 if (long_val < 0) 1762 long_val = 0; 1763 cx->physical->cfg.cd.delay = long_val; 1764 cx->physical->cfg.cd.required = argp[strlen(argp)-1] == '!'; 1765 } else { 1766 cx->physical->cfg.cd.delay = DEF_CDDELAY; 1767 cx->physical->cfg.cd.required = 0; 1768 } 1769 break; 1770 1771 case VAR_PARITY: 1772 if (arg->argc == arg->argn + 1) 1773 return physical_SetParity(arg->cx->physical, argp); 1774 else { 1775 err = "Parity value must be odd, even or none\n"; 1776 log_Printf(LogWARN, err); 1777 } 1778 break; 1779 1780 case VAR_CRTSCTS: 1781 if (strcasecmp(argp, "on") == 0) 1782 physical_SetRtsCts(arg->cx->physical, 1); 1783 else if (strcasecmp(argp, "off") == 0) 1784 physical_SetRtsCts(arg->cx->physical, 0); 1785 else { 1786 err = "RTS/CTS value must be on or off\n"; 1787 log_Printf(LogWARN, err); 1788 } 1789 break; 1790 1791 case VAR_URGENTPORTS: 1792 if (arg->argn == arg->argc) { 1793 ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp); 1794 ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp); 1795 } else if (!strcasecmp(arg->argv[arg->argn], "udp")) { 1796 if (arg->argn == arg->argc - 1) 1797 ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp); 1798 else for (f = arg->argn + 1; f < arg->argc; f++) 1799 if (*arg->argv[f] == '+') 1800 ipcp_AddUrgentUdpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f] + 1)); 1801 else if (*arg->argv[f] == '-') 1802 ipcp_RemoveUrgentUdpPort(&arg->bundle->ncp.ipcp, 1803 atoi(arg->argv[f] + 1)); 1804 else { 1805 if (f == arg->argn) 1806 ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp); 1807 ipcp_AddUrgentUdpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f])); 1808 } 1809 } else { 1810 first = arg->argn; 1811 if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc) 1812 ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp); 1813 1814 for (f = first; f < arg->argc; f++) 1815 if (*arg->argv[f] == '+') 1816 ipcp_AddUrgentTcpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f] + 1)); 1817 else if (*arg->argv[f] == '-') 1818 ipcp_RemoveUrgentTcpPort(&arg->bundle->ncp.ipcp, 1819 atoi(arg->argv[f] + 1)); 1820 else { 1821 if (f == first) 1822 ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp); 1823 ipcp_AddUrgentTcpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f])); 1824 } 1825 } 1826 break; 1827 } 1828 1829 return err ? 1 : 0; 1830} 1831 1832static struct cmdtab const SetCommands[] = { 1833 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1834 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP}, 1835 {"authkey", "key", SetVariable, LOCAL_AUTH, 1836 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY}, 1837 {"authname", NULL, SetVariable, LOCAL_AUTH, 1838 "authentication name", "set authname name", (const void *)VAR_AUTHNAME}, 1839 {"autoload", NULL, SetVariable, LOCAL_AUTH, 1840 "auto link [de]activation", "set autoload maxtime maxload mintime minload", 1841 (const void *)VAR_AUTOLOAD}, 1842 {"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX, 1843 "datalink bandwidth", "set bandwidth value"}, 1844 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1845 "callback control", "set callback [none|auth|cbcp|" 1846 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK}, 1847 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1848 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]", 1849 (const void *)VAR_CBCP}, 1850 {"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1851 "CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY}, 1852 {"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement", 1853 "set cd value[!]", (const void *)VAR_CD}, 1854 {"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX, 1855 "CHAP retries", "set chapretry value [attempts]", 1856 (const void *)VAR_CHAPRETRY}, 1857 {"choked", NULL, SetVariable, LOCAL_AUTH, 1858 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED}, 1859 {"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX, 1860 "Use hardware flow control", "set ctsrts [on|off]", 1861 (const char *)VAR_CRTSCTS}, 1862 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1863 "deflate window sizes", "set deflate out-winsize in-winsize", 1864 (const void *) VAR_WINSIZE}, 1865 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX, 1866 "physical device name", "set device|line device-name[,device-name]", 1867 (const void *) VAR_DEVICE}, 1868 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1869 "dialing script", "set dial chat-script", (const void *) VAR_DIAL}, 1870 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server", 1871 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS}, 1872 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH, 1873 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]"}, 1874 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX, 1875 "escape characters", "set escape hex-digit ..."}, 1876 {"filter", NULL, filter_Set, LOCAL_AUTH, 1877 "packet filters", "set filter alive|dial|in|out rule-no permit|deny " 1878 "[src_addr[/width]] [dst_addr[/width]] [tcp|udp|icmp|ospf|igmp " 1879 "[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]"}, 1880 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1881 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP}, 1882 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address", 1883 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"}, 1884 {"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries", 1885 "set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY}, 1886 {"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries", 1887 "set lcpretry value [attempts]", (const void *)VAR_LCPRETRY}, 1888 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level", 1889 "set log [local] [+|-]async|cbcp|ccp|chat|command|connect|debug|hdlc|id0|" 1890 "ipcp|lcp|lqm|phase|physical|sync|tcp/ip|timer|tun..."}, 1891 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1892 "login script", "set login chat-script", (const void *) VAR_LOGIN}, 1893 {"lqrperiod", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1894 "LQR period", "set lqrperiod value", (const void *)VAR_LQRPERIOD}, 1895 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value", 1896 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE}, 1897 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value", 1898 "set mrru value", (const void *)VAR_MRRU}, 1899 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1900 "MRU value", "set mru value", (const void *)VAR_MRU}, 1901 {"mtu", NULL, SetVariable, LOCAL_AUTH, 1902 "interface MTU value", "set mtu value", (const void *)VAR_MTU}, 1903 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server", 1904 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS}, 1905 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode", 1906 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE}, 1907 {"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries", 1908 "set papretry value [attempts]", (const void *)VAR_PAPRETRY}, 1909 {"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity", 1910 "set parity [odd|even|none]", (const void *)VAR_PARITY}, 1911 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)", 1912 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE}, 1913 {"proctitle", "title", SetProcTitle, LOCAL_AUTH, 1914 "Process title", "set proctitle [value]"}, 1915#ifndef NORADIUS 1916 {"radius", NULL, SetVariable, LOCAL_AUTH, 1917 "RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS}, 1918#endif 1919 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX, 1920 "Reconnect timeout", "set reconnect value ntries"}, 1921 {"recvpipe", NULL, SetVariable, LOCAL_AUTH, 1922 "RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE}, 1923 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX, 1924 "Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]"}, 1925 {"sendpipe", NULL, SetVariable, LOCAL_AUTH, 1926 "SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE}, 1927 {"server", "socket", SetServer, LOCAL_AUTH, 1928 "server port", "set server|socket TcpPort|LocalName|none password [mask]"}, 1929 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX, 1930 "physical speed", "set speed value|sync"}, 1931 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX, 1932 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]"}, 1933 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout", 1934 "set timeout idletime", (const void *)VAR_IDLETIMEOUT}, 1935 {"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent ports", 1936 "set urgent [tcp|udp] [+|-]port...", (const void *)VAR_URGENTPORTS}, 1937 {"vj", NULL, ipcp_vjset, LOCAL_AUTH, 1938 "vj values", "set vj slots|slotcomp [value]"}, 1939 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 1940 "Display this message", "set help|? [command]", SetCommands}, 1941 {NULL, NULL, NULL}, 1942}; 1943 1944static int 1945SetCommand(struct cmdargs const *arg) 1946{ 1947 if (arg->argc > arg->argn) 1948 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv, 1949 arg->prompt, arg->cx); 1950 else if (arg->prompt) 1951 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for" 1952 " syntax help.\n"); 1953 else 1954 log_Printf(LogWARN, "set command must have arguments\n"); 1955 1956 return 0; 1957} 1958 1959static int 1960AddCommand(struct cmdargs const *arg) 1961{ 1962 struct in_addr dest, gateway, netmask; 1963 int gw, addrs; 1964 1965 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2) 1966 return -1; 1967 1968 addrs = 0; 1969 if (arg->argc == arg->argn+2) { 1970 if (!strcasecmp(arg->argv[arg->argn], "default")) 1971 dest.s_addr = netmask.s_addr = INADDR_ANY; 1972 else { 1973 int width; 1974 1975 if (!ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn], 1976 &dest, &netmask, &width)) 1977 return -1; 1978 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6)) 1979 addrs = ROUTE_DSTMYADDR; 1980 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7)) 1981 addrs = ROUTE_DSTHISADDR; 1982 } 1983 gw = 1; 1984 } else { 1985 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 1986 addrs = ROUTE_DSTMYADDR; 1987 dest = arg->bundle->ncp.ipcp.my_ip; 1988 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 1989 addrs = ROUTE_DSTHISADDR; 1990 dest = arg->bundle->ncp.ipcp.peer_ip; 1991 } else 1992 dest = GetIpAddr(arg->argv[arg->argn]); 1993 netmask = GetIpAddr(arg->argv[arg->argn+1]); 1994 gw = 2; 1995 } 1996 1997 if (strcasecmp(arg->argv[arg->argn+gw], "HISADDR") == 0) { 1998 gateway = arg->bundle->ncp.ipcp.peer_ip; 1999 addrs |= ROUTE_GWHISADDR; 2000 } else 2001 gateway = GetIpAddr(arg->argv[arg->argn+gw]); 2002 2003 if (bundle_SetRoute(arg->bundle, RTM_ADD, dest, gateway, netmask, 2004 arg->cmd->args ? 1 : 0, (addrs & ROUTE_GWHISADDR) ? 1 : 0) 2005 && addrs != ROUTE_STATIC) 2006 route_Add(&arg->bundle->ncp.ipcp.route, addrs, dest, netmask, gateway); 2007 2008 return 0; 2009} 2010 2011static int 2012DeleteCommand(struct cmdargs const *arg) 2013{ 2014 struct in_addr dest, none; 2015 int addrs; 2016 2017 if (arg->argc == arg->argn+1) { 2018 if(strcasecmp(arg->argv[arg->argn], "all") == 0) { 2019 route_IfDelete(arg->bundle, 0); 2020 route_DeleteAll(&arg->bundle->ncp.ipcp.route); 2021 } else { 2022 addrs = 0; 2023 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2024 dest = arg->bundle->ncp.ipcp.my_ip; 2025 addrs = ROUTE_DSTMYADDR; 2026 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2027 dest = arg->bundle->ncp.ipcp.peer_ip; 2028 addrs = ROUTE_DSTHISADDR; 2029 } else { 2030 dest = GetIpAddr(arg->argv[arg->argn]); 2031 if (dest.s_addr == INADDR_NONE) { 2032 log_Printf(LogWARN, "%s: Invalid IP address\n", arg->argv[arg->argn]); 2033 return -1; 2034 } 2035 addrs = ROUTE_STATIC; 2036 } 2037 none.s_addr = INADDR_ANY; 2038 bundle_SetRoute(arg->bundle, RTM_DELETE, dest, none, none, 2039 arg->cmd->args ? 1 : 0, 0); 2040 route_Delete(&arg->bundle->ncp.ipcp.route, addrs, dest); 2041 } 2042 } else 2043 return -1; 2044 2045 return 0; 2046} 2047 2048#ifndef NONAT 2049static int 2050AliasEnable(struct cmdargs const *arg) 2051{ 2052 if (arg->argc == arg->argn+1) { 2053 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2054 if (!arg->bundle->NatEnabled) { 2055 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 2056 PacketAliasSetAddress(arg->bundle->ncp.ipcp.my_ip); 2057 arg->bundle->NatEnabled = 1; 2058 } 2059 return 0; 2060 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) { 2061 arg->bundle->NatEnabled = 0; 2062 arg->bundle->cfg.opt &= ~OPT_IFACEALIAS; 2063 /* Don't iface_Clear() - there may be manually configured addresses */ 2064 return 0; 2065 } 2066 } 2067 2068 return -1; 2069} 2070 2071 2072static int 2073AliasOption(struct cmdargs const *arg) 2074{ 2075 long param = (long)arg->cmd->args; 2076 2077 if (arg->argc == arg->argn+1) { 2078 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2079 if (arg->bundle->NatEnabled) { 2080 PacketAliasSetMode(param, param); 2081 return 0; 2082 } 2083 log_Printf(LogWARN, "nat not enabled\n"); 2084 } else if (strcmp(arg->argv[arg->argn], "no") == 0) { 2085 if (arg->bundle->NatEnabled) { 2086 PacketAliasSetMode(0, param); 2087 return 0; 2088 } 2089 log_Printf(LogWARN, "nat not enabled\n"); 2090 } 2091 } 2092 return -1; 2093} 2094#endif /* #ifndef NONAT */ 2095 2096static int 2097LinkCommand(struct cmdargs const *arg) 2098{ 2099 if (arg->argc > arg->argn+1) { 2100 char namelist[LINE_LEN]; 2101 struct datalink *cx; 2102 char *name; 2103 int result = 0; 2104 2105 if (!strcmp(arg->argv[arg->argn], "*")) { 2106 struct datalink *dl; 2107 2108 cx = arg->bundle->links; 2109 while (cx) { 2110 /* Watch it, the command could be a ``remove'' */ 2111 dl = cx->next; 2112 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2113 arg->prompt, cx); 2114 for (cx = arg->bundle->links; cx; cx = cx->next) 2115 if (cx == dl) 2116 break; /* Pointer's still valid ! */ 2117 } 2118 } else { 2119 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2120 namelist[sizeof namelist - 1] = '\0'; 2121 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 2122 if (!bundle2datalink(arg->bundle, name)) { 2123 log_Printf(LogWARN, "link: %s: Invalid link name\n", name); 2124 return 1; 2125 } 2126 2127 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2128 namelist[sizeof namelist - 1] = '\0'; 2129 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) { 2130 cx = bundle2datalink(arg->bundle, name); 2131 if (cx) 2132 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2133 arg->prompt, cx); 2134 else { 2135 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name); 2136 result++; 2137 } 2138 } 2139 } 2140 return result; 2141 } 2142 2143 log_Printf(LogWARN, "Usage: %s\n", arg->cmd->syntax); 2144 return 2; 2145} 2146 2147struct link * 2148command_ChooseLink(struct cmdargs const *arg) 2149{ 2150 if (arg->cx) 2151 return &arg->cx->physical->link; 2152 else if (!arg->bundle->ncp.mp.cfg.mrru) { 2153 struct datalink *dl = bundle2datalink(arg->bundle, NULL); 2154 if (dl) 2155 return &dl->physical->link; 2156 } 2157 return &arg->bundle->ncp.mp.link; 2158} 2159 2160static const char * 2161ident_cmd(const char *cmd, unsigned *keep, unsigned *add) 2162{ 2163 const char *result; 2164 2165 switch (*cmd) { 2166 case 'A': 2167 case 'a': 2168 result = "accept"; 2169 *keep = NEG_MYMASK; 2170 *add = NEG_ACCEPTED; 2171 break; 2172 case 'D': 2173 case 'd': 2174 switch (cmd[1]) { 2175 case 'E': 2176 case 'e': 2177 result = "deny"; 2178 *keep = NEG_MYMASK; 2179 *add = 0; 2180 break; 2181 case 'I': 2182 case 'i': 2183 result = "disable"; 2184 *keep = NEG_HISMASK; 2185 *add = 0; 2186 break; 2187 default: 2188 return NULL; 2189 } 2190 break; 2191 case 'E': 2192 case 'e': 2193 result = "enable"; 2194 *keep = NEG_HISMASK; 2195 *add = NEG_ENABLED; 2196 break; 2197 default: 2198 return NULL; 2199 } 2200 2201 return result; 2202} 2203 2204static int 2205OptSet(struct cmdargs const *arg) 2206{ 2207 int bit = (int)(long)arg->cmd->args; 2208 const char *cmd; 2209 unsigned keep; /* Keep these bits */ 2210 unsigned add; /* Add these bits */ 2211 2212 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2213 return 1; 2214 2215 if (add) 2216 arg->bundle->cfg.opt |= bit; 2217 else 2218 arg->bundle->cfg.opt &= ~bit; 2219 return 0; 2220} 2221 2222static int 2223IfaceAliasOptSet(struct cmdargs const *arg) 2224{ 2225 unsigned save = arg->bundle->cfg.opt; 2226 int result = OptSet(arg); 2227 2228 if (result == 0) 2229 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) { 2230 arg->bundle->cfg.opt = save; 2231 log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n"); 2232 result = 2; 2233 } 2234 2235 return result; 2236} 2237 2238static int 2239NegotiateSet(struct cmdargs const *arg) 2240{ 2241 long param = (long)arg->cmd->args; 2242 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 2243 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 2244 const char *cmd; 2245 unsigned keep; /* Keep these bits */ 2246 unsigned add; /* Add these bits */ 2247 2248 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2249 return 1; 2250 2251 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 2252 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n", 2253 cmd, arg->cmd->name); 2254 return 2; 2255 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 2256 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n", 2257 cmd, arg->cmd->name, cx->name); 2258 cx = NULL; 2259 } 2260 2261 switch (param) { 2262 case NEG_ACFCOMP: 2263 cx->physical->link.lcp.cfg.acfcomp &= keep; 2264 cx->physical->link.lcp.cfg.acfcomp |= add; 2265 break; 2266 case NEG_CHAP05: 2267 cx->physical->link.lcp.cfg.chap05 &= keep; 2268 cx->physical->link.lcp.cfg.chap05 |= add; 2269 break; 2270#ifdef HAVE_DES 2271 case NEG_CHAP80: 2272 cx->physical->link.lcp.cfg.chap80nt &= keep; 2273 cx->physical->link.lcp.cfg.chap80nt |= add; 2274 break; 2275 case NEG_CHAP80LM: 2276 cx->physical->link.lcp.cfg.chap80lm &= keep; 2277 cx->physical->link.lcp.cfg.chap80lm |= add; 2278 break; 2279#endif 2280 case NEG_DEFLATE: 2281 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep; 2282 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add; 2283 break; 2284 case NEG_DNS: 2285 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep; 2286 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add; 2287 break; 2288 case NEG_ENDDISC: 2289 arg->bundle->ncp.mp.cfg.negenddisc &= keep; 2290 arg->bundle->ncp.mp.cfg.negenddisc |= add; 2291 break; 2292 case NEG_LQR: 2293 cx->physical->link.lcp.cfg.lqr &= keep; 2294 cx->physical->link.lcp.cfg.lqr |= add; 2295 break; 2296 case NEG_PAP: 2297 cx->physical->link.lcp.cfg.pap &= keep; 2298 cx->physical->link.lcp.cfg.pap |= add; 2299 break; 2300 case NEG_PPPDDEFLATE: 2301 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep; 2302 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add; 2303 break; 2304 case NEG_PRED1: 2305 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep; 2306 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add; 2307 break; 2308 case NEG_PROTOCOMP: 2309 cx->physical->link.lcp.cfg.protocomp &= keep; 2310 cx->physical->link.lcp.cfg.protocomp |= add; 2311 break; 2312 case NEG_SHORTSEQ: 2313 switch (bundle_Phase(arg->bundle)) { 2314 case PHASE_DEAD: 2315 break; 2316 case PHASE_ESTABLISH: 2317 /* Make sure none of our links are DATALINK_LCP or greater */ 2318 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 2319 log_Printf(LogWARN, "shortseq: Only changable before" 2320 " LCP negotiations\n"); 2321 return 1; 2322 } 2323 break; 2324 default: 2325 log_Printf(LogWARN, "shortseq: Only changable at phase" 2326 " DEAD/ESTABLISH\n"); 2327 return 1; 2328 } 2329 arg->bundle->ncp.mp.cfg.shortseq &= keep; 2330 arg->bundle->ncp.mp.cfg.shortseq |= add; 2331 break; 2332 case NEG_VJCOMP: 2333 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep; 2334 arg->bundle->ncp.ipcp.cfg.vj.neg |= add; 2335 break; 2336 } 2337 2338 return 0; 2339} 2340 2341static struct cmdtab const NegotiateCommands[] = { 2342 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids", 2343 "disable|enable", (const void *)OPT_IDCHECK}, 2344 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH, 2345 "retain interface addresses", "disable|enable", 2346 (const void *)OPT_IFACEALIAS}, 2347 {"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader", 2348 "disable|enable", (const void *)OPT_KEEPSESSION}, 2349 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface", 2350 "disable|enable", (const void *)OPT_LOOPBACK}, 2351 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file", 2352 "disable|enable", (const void *)OPT_PASSWDAUTH}, 2353 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry", 2354 "disable|enable", (const void *)OPT_PROXY}, 2355 {"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts", 2356 "disable|enable", (const void *)OPT_PROXYALL}, 2357 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes", 2358 "disable|enable", (const void *)OPT_SROUTES}, 2359 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput", 2360 "disable|enable", (const void *)OPT_THROUGHPUT}, 2361 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp", 2362 "disable|enable", (const void *)OPT_UTMP}, 2363 2364#define OPT_MAX 10 /* accept/deny allowed below and not above */ 2365 2366 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2367 "Address & Control field compression", "accept|deny|disable|enable", 2368 (const void *)NEG_ACFCOMP}, 2369 {"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2370 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable", 2371 (const void *)NEG_CHAP05}, 2372#ifdef HAVE_DES 2373 {"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2374 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2375 (const void *)NEG_CHAP80}, 2376 {"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2377 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2378 (const void *)NEG_CHAP80LM}, 2379#endif 2380 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2381 "Deflate compression", "accept|deny|disable|enable", 2382 (const void *)NEG_DEFLATE}, 2383 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2384 "Deflate (type 24) compression", "accept|deny|disable|enable", 2385 (const void *)NEG_PPPDDEFLATE}, 2386 {"dns", NULL, NegotiateSet, LOCAL_AUTH, 2387 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS}, 2388 {"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation", 2389 "accept|deny|disable|enable", (const void *)NEG_ENDDISC}, 2390 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2391 "Link Quality Reports", "accept|deny|disable|enable", 2392 (const void *)NEG_LQR}, 2393 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2394 "Password Authentication protocol", "accept|deny|disable|enable", 2395 (const void *)NEG_PAP}, 2396 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2397 "Predictor 1 compression", "accept|deny|disable|enable", 2398 (const void *)NEG_PRED1}, 2399 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2400 "Protocol field compression", "accept|deny|disable|enable", 2401 (const void *)NEG_PROTOCOMP}, 2402 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH, 2403 "MP Short Sequence Numbers", "accept|deny|disable|enable", 2404 (const void *)NEG_SHORTSEQ}, 2405 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH, 2406 "Van Jacobson header compression", "accept|deny|disable|enable", 2407 (const void *)NEG_VJCOMP}, 2408 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2409 "Display this message", "accept|deny|disable|enable help|? [value]", 2410 NegotiateCommands}, 2411 {NULL, NULL, NULL}, 2412}; 2413 2414static int 2415NegotiateCommand(struct cmdargs const *arg) 2416{ 2417 if (arg->argc > arg->argn) { 2418 char const *argv[3]; 2419 unsigned keep, add; 2420 int n; 2421 2422 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL) 2423 return -1; 2424 argv[2] = NULL; 2425 2426 for (n = arg->argn; n < arg->argc; n++) { 2427 argv[1] = arg->argv[n]; 2428 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ? 2429 0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx); 2430 } 2431 } else if (arg->prompt) 2432 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n", 2433 arg->argv[arg->argn-1]); 2434 else 2435 log_Printf(LogWARN, "%s command must have arguments\n", 2436 arg->argv[arg->argn] ); 2437 2438 return 0; 2439} 2440 2441const char * 2442command_ShowNegval(unsigned val) 2443{ 2444 switch (val&3) { 2445 case 1: return "disabled & accepted"; 2446 case 2: return "enabled & denied"; 2447 case 3: return "enabled & accepted"; 2448 } 2449 return "disabled & denied"; 2450} 2451 2452static int 2453ClearCommand(struct cmdargs const *arg) 2454{ 2455 struct pppThroughput *t; 2456 struct datalink *cx; 2457 int i, clear_type; 2458 2459 if (arg->argc < arg->argn + 1) 2460 return -1; 2461 2462 if (strcasecmp(arg->argv[arg->argn], "physical") == 0) { 2463 cx = arg->cx; 2464 if (!cx) 2465 cx = bundle2datalink(arg->bundle, NULL); 2466 if (!cx) { 2467 log_Printf(LogWARN, "A link must be specified for ``clear physical''\n"); 2468 return 1; 2469 } 2470 t = &cx->physical->link.throughput; 2471 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0) 2472 t = &arg->bundle->ncp.ipcp.throughput; 2473 else 2474 return -1; 2475 2476 if (arg->argc > arg->argn + 1) { 2477 clear_type = 0; 2478 for (i = arg->argn + 1; i < arg->argc; i++) 2479 if (strcasecmp(arg->argv[i], "overall") == 0) 2480 clear_type |= THROUGHPUT_OVERALL; 2481 else if (strcasecmp(arg->argv[i], "current") == 0) 2482 clear_type |= THROUGHPUT_CURRENT; 2483 else if (strcasecmp(arg->argv[i], "peak") == 0) 2484 clear_type |= THROUGHPUT_PEAK; 2485 else 2486 return -1; 2487 } else 2488 clear_type = THROUGHPUT_ALL; 2489 2490 throughput_clear(t, clear_type, arg->prompt); 2491 return 0; 2492} 2493 2494static int 2495RunListCommand(struct cmdargs const *arg) 2496{ 2497 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???"; 2498 2499 if (arg->argc > arg->argn) 2500 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv, 2501 arg->prompt, arg->cx); 2502 else if (arg->prompt) 2503 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help" 2504 " <option>' for syntax help.\n", cmd, cmd); 2505 else 2506 log_Printf(LogWARN, "%s command must have arguments\n", cmd); 2507 2508 return 0; 2509} 2510 2511static int 2512IfaceAddCommand(struct cmdargs const *arg) 2513{ 2514 int bits, n, how; 2515 struct in_addr ifa, mask, brd; 2516 2517 if (arg->argc == arg->argn + 1) { 2518 if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL)) 2519 return -1; 2520 mask.s_addr = brd.s_addr = INADDR_BROADCAST; 2521 } else { 2522 if (arg->argc == arg->argn + 2) { 2523 if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, &mask, &bits)) 2524 return -1; 2525 n = 1; 2526 } else if (arg->argc == arg->argn + 3) { 2527 if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL)) 2528 return -1; 2529 if (!ParseAddr(NULL, arg->argv[arg->argn + 1], &mask, NULL, NULL)) 2530 return -1; 2531 n = 2; 2532 } else 2533 return -1; 2534 2535 if (!ParseAddr(NULL, arg->argv[arg->argn + n], &brd, NULL, NULL)) 2536 return -1; 2537 } 2538 2539 how = IFACE_ADD_LAST; 2540 if (arg->cmd->args) 2541 how |= IFACE_FORCE_ADD; 2542 2543 return !iface_inAdd(arg->bundle->iface, ifa, mask, brd, how); 2544} 2545 2546static int 2547IfaceDeleteCommand(struct cmdargs const *arg) 2548{ 2549 struct in_addr ifa; 2550 int ok; 2551 2552 if (arg->argc != arg->argn + 1) 2553 return -1; 2554 2555 if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL)) 2556 return -1; 2557 2558 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED && 2559 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa.s_addr) { 2560 log_Printf(LogWARN, "%s: Cannot remove active interface address\n", 2561 inet_ntoa(ifa)); 2562 return 1; 2563 } 2564 2565 ok = iface_inDelete(arg->bundle->iface, ifa); 2566 if (!ok) { 2567 if (arg->cmd->args) 2568 ok = 1; 2569 else if (arg->prompt) 2570 prompt_Printf(arg->prompt, "%s: No such address\n", inet_ntoa(ifa)); 2571 else 2572 log_Printf(LogWARN, "%s: No such address\n", inet_ntoa(ifa)); 2573 } 2574 2575 return !ok; 2576} 2577 2578static int 2579IfaceClearCommand(struct cmdargs const *arg) 2580{ 2581 int how; 2582 2583 if (arg->argc != arg->argn) 2584 return -1; 2585 2586 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED || 2587 arg->bundle->phys_type.all & PHYS_AUTO ? 2588 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL; 2589 iface_Clear(arg->bundle->iface, how); 2590 2591 return 0; 2592} 2593 2594static int 2595SetProcTitle(struct cmdargs const *arg) 2596{ 2597 static char title[LINE_LEN]; 2598 char *argv[MAXARGS], *ptr; 2599 int len, remaining, f, argc = arg->argc - arg->argn; 2600 2601 if (arg->argc == arg->argn) { 2602 arg->bundle->argv[0] = arg->bundle->argv0; 2603 arg->bundle->argv[1] = arg->bundle->argv1; 2604 return 0; 2605 } 2606 2607 if (argc >= sizeof argv / sizeof argv[0]) { 2608 argc = sizeof argv / sizeof argv[0] - 1; 2609 log_Printf(LogWARN, "Truncating proc title to %d args\n", argc); 2610 } 2611 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 2612 2613 ptr = title; 2614 remaining = sizeof title - 1; 2615 for (f = 0; f < argc && remaining; f++) { 2616 if (f) { 2617 *ptr++ = ' '; 2618 remaining--; 2619 } 2620 len = strlen(argv[f]); 2621 if (len > remaining) 2622 len = remaining; 2623 memcpy(ptr, argv[f], len); 2624 remaining -= len; 2625 ptr += len; 2626 } 2627 *ptr = '\0'; 2628 2629 arg->bundle->argv[0] = title; 2630 arg->bundle->argv[1] = NULL; 2631 2632 return 0; 2633} 2634