command.c revision 40561
1/* 2 * PPP User command processing module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * $Id: command.c,v 1.167 1998/10/17 12:28:05 brian Exp $ 21 * 22 */ 23#include <sys/types.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 NOALIAS 45#ifdef __OpenBSD__ 46#include "alias.h" 47#else 48#include <alias.h> 49#endif 50#endif 51#include "defs.h" 52#include "command.h" 53#include "mbuf.h" 54#include "log.h" 55#include "timer.h" 56#include "fsm.h" 57#include "lcp.h" 58#include "iplist.h" 59#include "throughput.h" 60#include "slcompress.h" 61#include "lqr.h" 62#include "hdlc.h" 63#include "ipcp.h" 64#include "modem.h" 65#ifndef NOALIAS 66#include "alias_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#include "bundle.h" 80#include "server.h" 81#include "prompt.h" 82#include "chat.h" 83#include "chap.h" 84#include "cbcp.h" 85#include "datalink.h" 86#include "iface.h" 87 88/* ``set'' values */ 89#define VAR_AUTHKEY 0 90#define VAR_DIAL 1 91#define VAR_LOGIN 2 92#define VAR_AUTHNAME 3 93#define VAR_AUTOLOAD 4 94#define VAR_WINSIZE 5 95#define VAR_DEVICE 6 96#define VAR_ACCMAP 7 97#define VAR_MRRU 8 98#define VAR_MRU 9 99#define VAR_MTU 10 100#define VAR_OPENMODE 11 101#define VAR_PHONE 12 102#define VAR_HANGUP 13 103#define VAR_IDLETIMEOUT 14 104#define VAR_LQRPERIOD 15 105#define VAR_LCPRETRY 16 106#define VAR_CHAPRETRY 17 107#define VAR_PAPRETRY 18 108#define VAR_CCPRETRY 19 109#define VAR_IPCPRETRY 20 110#define VAR_DNS 21 111#define VAR_NBNS 22 112#define VAR_MODE 23 113#define VAR_CALLBACK 24 114#define VAR_CBCP 25 115#define VAR_CHOKED 26 116 117/* ``accept|deny|disable|enable'' masks */ 118#define NEG_HISMASK (1) 119#define NEG_MYMASK (2) 120 121/* ``accept|deny|disable|enable'' values */ 122#define NEG_ACFCOMP 40 123#define NEG_CHAP 41 124#define NEG_DEFLATE 42 125#define NEG_LQR 43 126#define NEG_PAP 44 127#define NEG_PPPDDEFLATE 45 128#define NEG_PRED1 46 129#define NEG_PROTOCOMP 47 130#define NEG_SHORTSEQ 48 131#define NEG_VJCOMP 49 132#define NEG_DNS 50 133 134const char Version[] = "2.0"; 135const char VersionDate[] = "$Date: 1998/10/17 12:28:05 $"; 136 137static int ShowCommand(struct cmdargs const *); 138static int TerminalCommand(struct cmdargs const *); 139static int QuitCommand(struct cmdargs const *); 140static int OpenCommand(struct cmdargs const *); 141static int CloseCommand(struct cmdargs const *); 142static int DownCommand(struct cmdargs const *); 143static int SetCommand(struct cmdargs const *); 144static int LinkCommand(struct cmdargs const *); 145static int AddCommand(struct cmdargs const *); 146static int DeleteCommand(struct cmdargs const *); 147static int NegotiateCommand(struct cmdargs const *); 148static int ClearCommand(struct cmdargs const *); 149static int RunListCommand(struct cmdargs const *); 150static int IfaceAddCommand(struct cmdargs const *); 151static int IfaceDeleteCommand(struct cmdargs const *); 152static int IfaceClearCommand(struct cmdargs const *); 153#ifndef NOALIAS 154static int AliasEnable(struct cmdargs const *); 155static int AliasOption(struct cmdargs const *); 156#endif 157 158static const char * 159showcx(struct cmdtab const *cmd) 160{ 161 if (cmd->lauth & LOCAL_CX) 162 return "(c)"; 163 else if (cmd->lauth & LOCAL_CX_OPT) 164 return "(o)"; 165 166 return ""; 167} 168 169static int 170HelpCommand(struct cmdargs const *arg) 171{ 172 struct cmdtab const *cmd; 173 int n, cmax, dmax, cols, cxlen; 174 const char *cx; 175 176 if (!arg->prompt) { 177 log_Printf(LogWARN, "help: Cannot help without a prompt\n"); 178 return 0; 179 } 180 181 if (arg->argc > arg->argn) { 182 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++) 183 if ((cmd->lauth & arg->prompt->auth) && 184 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) || 185 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) { 186 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd)); 187 return 0; 188 } 189 return -1; 190 } 191 192 cmax = dmax = 0; 193 for (cmd = arg->cmdtab; cmd->func; cmd++) 194 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 195 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax) 196 cmax = n; 197 if ((n = strlen(cmd->helpmes)) > dmax) 198 dmax = n; 199 } 200 201 cols = 80 / (dmax + cmax + 3); 202 n = 0; 203 prompt_Printf(arg->prompt, "(o) = Optional context," 204 " (c) = Context required\n"); 205 for (cmd = arg->cmdtab; cmd->func; cmd++) 206 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 207 cx = showcx(cmd); 208 cxlen = cmax - strlen(cmd->name); 209 if (n % cols != 0) 210 prompt_Printf(arg->prompt, " "); 211 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s", 212 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes); 213 if (++n % cols == 0) 214 prompt_Printf(arg->prompt, "\n"); 215 } 216 if (n % cols != 0) 217 prompt_Printf(arg->prompt, "\n"); 218 219 return 0; 220} 221 222static int 223CloneCommand(struct cmdargs const *arg) 224{ 225 char namelist[LINE_LEN]; 226 char *name; 227 int f; 228 229 if (arg->argc == arg->argn) 230 return -1; 231 232 namelist[sizeof namelist - 1] = '\0'; 233 for (f = arg->argn; f < arg->argc; f++) { 234 strncpy(namelist, arg->argv[f], sizeof namelist - 1); 235 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 236 bundle_DatalinkClone(arg->bundle, arg->cx, name); 237 } 238 239 return 0; 240} 241 242static int 243RemoveCommand(struct cmdargs const *arg) 244{ 245 if (arg->argc != arg->argn) 246 return -1; 247 248 if (arg->cx->state != DATALINK_CLOSED) { 249 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n"); 250 return 2; 251 } 252 253 bundle_DatalinkRemove(arg->bundle, arg->cx); 254 return 0; 255} 256 257static int 258RenameCommand(struct cmdargs const *arg) 259{ 260 if (arg->argc != arg->argn + 1) 261 return -1; 262 263 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn])) 264 return 0; 265 266 log_Printf(LogWARN, "%s -> %s: target name already exists\n", 267 arg->cx->name, arg->argv[arg->argn]); 268 return 1; 269} 270 271int 272LoadCommand(struct cmdargs const *arg) 273{ 274 const char *name; 275 276 if (arg->argc > arg->argn) 277 name = arg->argv[arg->argn]; 278 else 279 name = "default"; 280 281 if (!system_IsValid(name, arg->prompt, arg->bundle->phys_type.all)) { 282 log_Printf(LogWARN, "%s: Label not allowed\n", name); 283 return 1; 284 } else { 285 /* 286 * Set the label before & after so that `set enddisc' works and 287 * we handle nested `load' commands. 288 */ 289 bundle_SetLabel(arg->bundle, arg->argc > arg->argn ? name : NULL); 290 if (system_Select(arg->bundle, name, CONFFILE, arg->prompt, arg->cx) < 0) { 291 bundle_SetLabel(arg->bundle, NULL); 292 log_Printf(LogWARN, "%s: label not found.\n", name); 293 return -1; 294 } 295 bundle_SetLabel(arg->bundle, arg->argc > arg->argn ? name : NULL); 296 } 297 return 0; 298} 299 300int 301SaveCommand(struct cmdargs const *arg) 302{ 303 log_Printf(LogWARN, "save command is not implemented (yet).\n"); 304 return 1; 305} 306 307static int 308DialCommand(struct cmdargs const *arg) 309{ 310 int res; 311 312 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO))) 313 || (!arg->cx && 314 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) { 315 log_Printf(LogWARN, "Manual dial is only available for auto and" 316 " interactive links\n"); 317 return 1; 318 } 319 320 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0) 321 return res; 322 323 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 324 325 return 0; 326} 327 328#define isinword(ch) (isalnum(ch) || (ch) == '_') 329 330static char * 331strstrword(char *big, const char *little) 332{ 333 /* Get the first occurance of the word ``little'' in ``big'' */ 334 char *pos; 335 int len; 336 337 pos = big; 338 len = strlen(little); 339 340 while ((pos = strstr(pos, little)) != NULL) 341 if ((pos == big || !isinword(pos[-1])) && !isinword(pos[len])) 342 break; 343 else 344 pos++; 345 346 return pos; 347} 348 349static char * 350subst(char *tgt, const char *oldstr, const char *newstr) 351{ 352 /* tgt is a malloc()d area... realloc() as necessary */ 353 char *word, *ntgt; 354 int ltgt, loldstr, lnewstr, pos; 355 356 if ((word = strstrword(tgt, oldstr)) == NULL) 357 return tgt; 358 359 ltgt = strlen(tgt) + 1; 360 loldstr = strlen(oldstr); 361 lnewstr = strlen(newstr); 362 do { 363 pos = word - tgt; 364 if (loldstr > lnewstr) 365 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 366 if (loldstr != lnewstr) { 367 ntgt = realloc(tgt, ltgt += lnewstr - loldstr); 368 if (ntgt == NULL) 369 break; /* Oh wonderful ! */ 370 word = ntgt + pos; 371 tgt = ntgt; 372 } 373 if (lnewstr > loldstr) 374 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 375 bcopy(newstr, word, lnewstr); 376 } while ((word = strstrword(word, oldstr))); 377 378 return tgt; 379} 380 381static void 382expand(char **nargv, int argc, char const *const *oargv, struct bundle *bundle) 383{ 384 int arg; 385 386 nargv[0] = strdup(oargv[0]); 387 for (arg = 1; arg < argc; arg++) { 388 nargv[arg] = strdup(oargv[arg]); 389 nargv[arg] = subst(nargv[arg], "HISADDR", 390 inet_ntoa(bundle->ncp.ipcp.peer_ip)); 391 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name); 392 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name); 393 nargv[arg] = subst(nargv[arg], "MYADDR", inet_ntoa(bundle->ncp.ipcp.my_ip)); 394 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname); 395 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC", 396 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class, 397 bundle->ncp.mp.peer.enddisc.address, 398 bundle->ncp.mp.peer.enddisc.len)); 399 nargv[arg] = subst(nargv[arg], "ENDDISC", 400 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class, 401 bundle->ncp.mp.cfg.enddisc.address, 402 bundle->ncp.mp.cfg.enddisc.len)); 403 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle)); 404 } 405 nargv[arg] = NULL; 406} 407 408static int 409ShellCommand(struct cmdargs const *arg, int bg) 410{ 411 const char *shell; 412 pid_t shpid; 413 414#ifdef SHELL_ONLY_INTERACTIVELY 415 /* we're only allowed to shell when we run ppp interactively */ 416 if (arg->prompt && arg->prompt->owner) { 417 log_Printf(LogWARN, "Can't start a shell from a network connection\n"); 418 return 1; 419 } 420#endif 421 422 if (arg->argc == arg->argn) { 423 if (!arg->prompt) { 424 log_Printf(LogWARN, "Can't start an interactive shell from" 425 " a config file\n"); 426 return 1; 427 } else if (arg->prompt->owner) { 428 log_Printf(LogWARN, "Can't start an interactive shell from" 429 " a socket connection\n"); 430 return 1; 431 } else if (bg) { 432 log_Printf(LogWARN, "Can only start an interactive shell in" 433 " the foreground mode\n"); 434 return 1; 435 } 436 } 437 438 if ((shpid = fork()) == 0) { 439 int i, fd; 440 441 if ((shell = getenv("SHELL")) == 0) 442 shell = _PATH_BSHELL; 443 444 timer_TermService(); 445 446 if (arg->prompt) 447 fd = arg->prompt->fd_out; 448 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { 449 log_Printf(LogALERT, "Failed to open %s: %s\n", 450 _PATH_DEVNULL, strerror(errno)); 451 exit(1); 452 } 453 for (i = 0; i < 3; i++) 454 dup2(fd, i); 455 456 fcntl(3, F_SETFD, 1); /* Set close-on-exec flag */ 457 458 setuid(geteuid()); 459 if (arg->argc > arg->argn) { 460 /* substitute pseudo args */ 461 char *argv[MAXARGS]; 462 int argc = arg->argc - arg->argn; 463 464 if (argc >= sizeof argv / sizeof argv[0]) { 465 argc = sizeof argv / sizeof argv[0] - 1; 466 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc); 467 } 468 expand(argv, argc, arg->argv + arg->argn, arg->bundle); 469 if (bg) { 470 pid_t p; 471 472 p = getpid(); 473 if (daemon(1, 1) == -1) { 474 log_Printf(LogERROR, "%d: daemon: %s\n", (int)p, strerror(errno)); 475 exit(1); 476 } 477 } else if (arg->prompt) 478 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]); 479 execvp(argv[0], argv); 480 } else { 481 if (arg->prompt) 482 printf("ppp: Pausing until %s finishes\n", shell); 483 prompt_TtyOldMode(arg->prompt); 484 execl(shell, shell, NULL); 485 } 486 487 log_Printf(LogWARN, "exec() of %s failed\n", 488 arg->argc > arg->argn ? arg->argv[arg->argn] : shell); 489 exit(255); 490 } 491 492 if (shpid == (pid_t) - 1) 493 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno)); 494 else { 495 int status; 496 waitpid(shpid, &status, 0); 497 } 498 499 if (arg->prompt && !arg->prompt->owner) 500 prompt_TtyCommandMode(arg->prompt); 501 502 return 0; 503} 504 505static int 506BgShellCommand(struct cmdargs const *arg) 507{ 508 if (arg->argc == arg->argn) 509 return -1; 510 return ShellCommand(arg, 1); 511} 512 513static int 514FgShellCommand(struct cmdargs const *arg) 515{ 516 return ShellCommand(arg, 0); 517} 518 519#ifndef NOALIAS 520static struct cmdtab const AliasCommands[] = 521{ 522 {"addr", NULL, alias_RedirectAddr, LOCAL_AUTH, 523 "static address translation", "alias addr [addr_local addr_alias]"}, 524 {"deny_incoming", NULL, AliasOption, LOCAL_AUTH, 525 "stop incoming connections", "alias deny_incoming [yes|no]", 526 (const void *) PKT_ALIAS_DENY_INCOMING}, 527 {"enable", NULL, AliasEnable, LOCAL_AUTH, 528 "enable IP aliasing", "alias enable [yes|no]"}, 529 {"log", NULL, AliasOption, LOCAL_AUTH, 530 "log aliasing link creation", "alias log [yes|no]", 531 (const void *) PKT_ALIAS_LOG}, 532 {"port", NULL, alias_RedirectPort, LOCAL_AUTH, 533 "port redirection", "alias port [proto addr_local:port_local port_alias]"}, 534 {"same_ports", NULL, AliasOption, LOCAL_AUTH, 535 "try to leave port numbers unchanged", "alias same_ports [yes|no]", 536 (const void *) PKT_ALIAS_SAME_PORTS}, 537 {"unregistered_only", NULL, AliasOption, LOCAL_AUTH, 538 "alias unregistered (private) IP address space only", 539 "alias unregistered_only [yes|no]", 540 (const void *) PKT_ALIAS_UNREGISTERED_ONLY}, 541 {"use_sockets", NULL, AliasOption, LOCAL_AUTH, 542 "allocate host sockets", "alias use_sockets [yes|no]", 543 (const void *) PKT_ALIAS_USE_SOCKETS}, 544 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 545 "Display this message", "alias help|? [command]", AliasCommands}, 546 {NULL, NULL, NULL}, 547}; 548#endif 549 550static struct cmdtab const AllowCommands[] = { 551 {"modes", "mode", AllowModes, LOCAL_AUTH, 552 "Only allow certain ppp modes", "allow modes mode..."}, 553 {"users", "user", AllowUsers, LOCAL_AUTH, 554 "Only allow ppp access to certain users", "allow users logname..."}, 555 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 556 "Display this message", "allow help|? [command]", AllowCommands}, 557 {NULL, NULL, NULL}, 558}; 559 560static struct cmdtab const IfaceCommands[] = 561{ 562 {"add", NULL, IfaceAddCommand, LOCAL_AUTH, 563 "Add iface address", "iface add addr[/bits| mask] peer", NULL}, 564 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH, 565 "Add or change an iface address", "iface add! addr[/bits| mask] peer", 566 (void *)1}, 567 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH, 568 "Clear iface address(es)", "iface clear"}, 569 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH, 570 "Delete iface address", "iface delete addr", NULL}, 571 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH, 572 "Delete iface address", "iface delete addr", (void *)1}, 573 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH, 574 "Delete iface address", "iface delete addr", (void *)1}, 575 {"show", NULL, iface_Show, LOCAL_AUTH, 576 "Show iface address(es)", "iface show"}, 577 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 578 "Display this message", "alias help|? [command]", IfaceCommands}, 579 {NULL, NULL, NULL}, 580}; 581 582static struct cmdtab const Commands[] = { 583 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 584 "accept option request", "accept option .."}, 585 {"add", NULL, AddCommand, LOCAL_AUTH, 586 "add route", "add dest mask gateway", NULL}, 587 {NULL, "add!", AddCommand, LOCAL_AUTH, 588 "add or change route", "add! dest mask gateway", (void *)1}, 589#ifndef NOALIAS 590 {"alias", NULL, RunListCommand, LOCAL_AUTH, 591 "alias control", "alias option [yes|no]", AliasCommands}, 592#endif 593 {"allow", "auth", RunListCommand, LOCAL_AUTH, 594 "Allow ppp access", "allow users|modes ....", AllowCommands}, 595 {"bg", "!bg", BgShellCommand, LOCAL_AUTH, 596 "Run a background command", "[!]bg command"}, 597 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT, 598 "Clear throughput statistics", "clear ipcp|modem [current|overall|peak]..."}, 599 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX, 600 "Clone a link", "clone newname..."}, 601 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT, 602 "Close an FSM", "close [lcp|ccp]"}, 603 {"delete", NULL, DeleteCommand, LOCAL_AUTH, 604 "delete route", "delete dest", NULL}, 605 {NULL, "delete!", DeleteCommand, LOCAL_AUTH, 606 "delete a route if it exists", "delete! dest", (void *)1}, 607 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 608 "Deny option request", "deny option .."}, 609 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT, 610 "Dial and login", "dial|call [remote]", NULL}, 611 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 612 "Disable option", "disable option .."}, 613 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT, 614 "Generate a down event", "down"}, 615 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 616 "Enable option", "enable option .."}, 617 {"iface", "interface", RunListCommand, LOCAL_AUTH, 618 "interface control", "iface option ...", IfaceCommands}, 619 {"link", "datalink", LinkCommand, LOCAL_AUTH, 620 "Link specific commands", "link name command ..."}, 621 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT, 622 "Load settings", "load [remote]"}, 623 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT, 624 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1}, 625 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH, 626 "Password for manipulation", "passwd LocalPassword"}, 627 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 628 "Quit PPP program", "quit|bye [all]"}, 629 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX, 630 "Remove a link", "remove"}, 631 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX, 632 "Rename a link", "rename name"}, 633 {"save", NULL, SaveCommand, LOCAL_AUTH, 634 "Save settings", "save"}, 635 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT, 636 "Set parameters", "set[up] var value"}, 637 {"shell", "!", FgShellCommand, LOCAL_AUTH, 638 "Run a subshell", "shell|! [sh command]"}, 639 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT, 640 "Show status and stats", "show var"}, 641 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX, 642 "Enter terminal mode", "term"}, 643 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 644 "Display this message", "help|? [command]", Commands}, 645 {NULL, NULL, NULL}, 646}; 647 648static int 649ShowEscape(struct cmdargs const *arg) 650{ 651 if (arg->cx->physical->async.cfg.EscMap[32]) { 652 int code, bit; 653 const char *sep = ""; 654 655 for (code = 0; code < 32; code++) 656 if (arg->cx->physical->async.cfg.EscMap[code]) 657 for (bit = 0; bit < 8; bit++) 658 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) { 659 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit); 660 sep = ", "; 661 } 662 prompt_Printf(arg->prompt, "\n"); 663 } 664 return 0; 665} 666 667static int 668ShowTimerList(struct cmdargs const *arg) 669{ 670 timer_Show(0, arg->prompt); 671 return 0; 672} 673 674static int 675ShowStopped(struct cmdargs const *arg) 676{ 677 prompt_Printf(arg->prompt, " Stopped Timer: LCP: "); 678 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load) 679 prompt_Printf(arg->prompt, "Disabled"); 680 else 681 prompt_Printf(arg->prompt, "%ld secs", 682 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS); 683 684 prompt_Printf(arg->prompt, ", CCP: "); 685 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load) 686 prompt_Printf(arg->prompt, "Disabled"); 687 else 688 prompt_Printf(arg->prompt, "%ld secs", 689 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS); 690 691 prompt_Printf(arg->prompt, "\n"); 692 693 return 0; 694} 695 696static int 697ShowVersion(struct cmdargs const *arg) 698{ 699 prompt_Printf(arg->prompt, "PPP Version %s - %s\n", Version, VersionDate); 700 return 0; 701} 702 703static int 704ShowProtocolStats(struct cmdargs const *arg) 705{ 706 struct link *l = command_ChooseLink(arg); 707 708 prompt_Printf(arg->prompt, "%s:\n", l->name); 709 link_ReportProtocolStatus(l, arg->prompt); 710 return 0; 711} 712 713static struct cmdtab const ShowCommands[] = { 714 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH, 715 "bundle details", "show bundle"}, 716 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT, 717 "CCP status", "show cpp"}, 718 {"compress", NULL, sl_Show, LOCAL_AUTH, 719 "VJ compression stats", "show compress"}, 720 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX, 721 "escape characters", "show escape"}, 722 {"filter", NULL, filter_Show, LOCAL_AUTH, 723 "packet filters", "show filter [in|out|dial|alive]"}, 724 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX, 725 "HDLC errors", "show hdlc"}, 726 {"iface", "interface", iface_Show, LOCAL_AUTH, 727 "Interface status", "show iface"}, 728 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH, 729 "IPCP status", "show ipcp"}, 730 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX, 731 "LCP status", "show lcp"}, 732 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX, 733 "(high-level) link info", "show link"}, 734 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH, 735 "available link names", "show links"}, 736 {"log", NULL, log_ShowLevel, LOCAL_AUTH, 737 "log levels", "show log"}, 738 {"mem", NULL, mbuf_Show, LOCAL_AUTH, 739 "mbuf allocations", "show mem"}, 740 {"modem", NULL, modem_ShowStatus, LOCAL_AUTH | LOCAL_CX, 741 "(low-level) link info", "show modem"}, 742 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH, 743 "multilink setup", "show mp"}, 744 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT, 745 "protocol summary", "show proto"}, 746 {"route", NULL, route_Show, LOCAL_AUTH, 747 "routing table", "show route"}, 748 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX, 749 "STOPPED timeout", "show stopped"}, 750 {"timers", NULL, ShowTimerList, LOCAL_AUTH, 751 "alarm timers", "show timers"}, 752 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 753 "version string", "show version"}, 754 {"who", NULL, log_ShowWho, LOCAL_AUTH, 755 "client list", "show who"}, 756 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 757 "Display this message", "show help|? [command]", ShowCommands}, 758 {NULL, NULL, NULL}, 759}; 760 761static struct cmdtab const * 762FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch) 763{ 764 int nmatch; 765 int len; 766 struct cmdtab const *found; 767 768 found = NULL; 769 len = strlen(str); 770 nmatch = 0; 771 while (cmds->func) { 772 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) { 773 if (cmds->name[len] == '\0') { 774 *pmatch = 1; 775 return cmds; 776 } 777 nmatch++; 778 found = cmds; 779 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) { 780 if (cmds->alias[len] == '\0') { 781 *pmatch = 1; 782 return cmds; 783 } 784 nmatch++; 785 found = cmds; 786 } 787 cmds++; 788 } 789 *pmatch = nmatch; 790 return found; 791} 792 793static const char * 794mkPrefix(int argc, char const *const *argv, char *tgt, int sz) 795{ 796 int f, tlen, len; 797 798 tlen = 0; 799 for (f = 0; f < argc && tlen < sz - 2; f++) { 800 if (f) 801 tgt[tlen++] = ' '; 802 len = strlen(argv[f]); 803 if (len > sz - tlen - 1) 804 len = sz - tlen - 1; 805 strncpy(tgt+tlen, argv[f], len); 806 tlen += len; 807 } 808 tgt[tlen] = '\0'; 809 return tgt; 810} 811 812static int 813FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn, 814 char const *const *argv, struct prompt *prompt, struct datalink *cx) 815{ 816 struct cmdtab const *cmd; 817 int val = 1; 818 int nmatch; 819 struct cmdargs arg; 820 char prefix[100]; 821 822 cmd = FindCommand(cmds, argv[argn], &nmatch); 823 if (nmatch > 1) 824 log_Printf(LogWARN, "%s: Ambiguous command\n", 825 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 826 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) { 827 if ((cmd->lauth & LOCAL_CX) && !cx) 828 /* We've got no context, but we require it */ 829 cx = bundle2datalink(bundle, NULL); 830 831 if ((cmd->lauth & LOCAL_CX) && !cx) 832 log_Printf(LogWARN, "%s: No context (use the `link' command)\n", 833 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 834 else { 835 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 836 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n", 837 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name); 838 cx = NULL; 839 } 840 arg.cmdtab = cmds; 841 arg.cmd = cmd; 842 arg.argc = argc; 843 arg.argn = argn+1; 844 arg.argv = argv; 845 arg.bundle = bundle; 846 arg.cx = cx; 847 arg.prompt = prompt; 848 val = (*cmd->func) (&arg); 849 } 850 } else 851 log_Printf(LogWARN, "%s: Invalid command\n", 852 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 853 854 if (val == -1) 855 log_Printf(LogWARN, "Usage: %s\n", cmd->syntax); 856 else if (val) 857 log_Printf(LogWARN, "%s: Failed %d\n", 858 mkPrefix(argn+1, argv, prefix, sizeof prefix), val); 859 860 return val; 861} 862 863int 864command_Interpret(char *buff, int nb, char *argv[MAXARGS]) 865{ 866 char *cp; 867 868 if (nb > 0) { 869 cp = buff + strcspn(buff, "\r\n"); 870 if (cp) 871 *cp = '\0'; 872 return MakeArgs(buff, argv, MAXARGS); 873 } 874 return 0; 875} 876 877static int 878arghidden(int argc, char const *const *argv, int n) 879{ 880 /* Is arg n of the given command to be hidden from the log ? */ 881 882 /* set authkey xxxxx */ 883 /* set key xxxxx */ 884 if (n == 2 && !strncasecmp(argv[0], "se", 2) && 885 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2))) 886 return 1; 887 888 /* passwd xxxxx */ 889 if (n == 1 && !strncasecmp(argv[0], "p", 1)) 890 return 1; 891 892 /* set server port xxxxx .... */ 893 if (n == 3 && !strncasecmp(argv[0], "se", 2) && 894 !strncasecmp(argv[1], "se", 2)) 895 return 1; 896 897 return 0; 898} 899 900void 901command_Run(struct bundle *bundle, int argc, char const *const *argv, 902 struct prompt *prompt, const char *label, struct datalink *cx) 903{ 904 if (argc > 0) { 905 if (log_IsKept(LogCOMMAND)) { 906 static char buf[LINE_LEN]; 907 int f, n; 908 909 *buf = '\0'; 910 if (label) { 911 strncpy(buf, label, sizeof buf - 3); 912 buf[sizeof buf - 3] = '\0'; 913 strcat(buf, ": "); 914 } 915 n = strlen(buf); 916 for (f = 0; f < argc; f++) { 917 if (n < sizeof buf - 1 && f) 918 buf[n++] = ' '; 919 if (arghidden(argc, argv, f)) 920 strncpy(buf+n, "********", sizeof buf - n - 1); 921 else 922 strncpy(buf+n, argv[f], sizeof buf - n - 1); 923 n += strlen(buf+n); 924 } 925 log_Printf(LogCOMMAND, "%s\n", buf); 926 } 927 FindExec(bundle, Commands, argc, 0, argv, prompt, cx); 928 } 929} 930 931void 932command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt, 933 const char *label) 934{ 935 int argc; 936 char *argv[MAXARGS]; 937 938 argc = command_Interpret(buff, nb, argv); 939 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL); 940} 941 942static int 943ShowCommand(struct cmdargs const *arg) 944{ 945 if (!arg->prompt) 946 log_Printf(LogWARN, "show: Cannot show without a prompt\n"); 947 else if (arg->argc > arg->argn) 948 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv, 949 arg->prompt, arg->cx); 950 else 951 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n"); 952 953 return 0; 954} 955 956static int 957TerminalCommand(struct cmdargs const *arg) 958{ 959 if (!arg->prompt) { 960 log_Printf(LogWARN, "term: Need a prompt\n"); 961 return 1; 962 } 963 964 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) { 965 prompt_Printf(arg->prompt, "LCP state is [%s]\n", 966 State2Nam(arg->cx->physical->link.lcp.fsm.state)); 967 return 1; 968 } 969 970 datalink_Up(arg->cx, 0, 0); 971 prompt_TtyTermMode(arg->prompt, arg->cx); 972 return 0; 973} 974 975static int 976QuitCommand(struct cmdargs const *arg) 977{ 978 if (!arg->prompt || prompt_IsController(arg->prompt) || 979 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") && 980 (arg->prompt->auth & LOCAL_AUTH))) 981 Cleanup(EX_NORMAL); 982 if (arg->prompt) 983 prompt_Destroy(arg->prompt, 1); 984 985 return 0; 986} 987 988static int 989OpenCommand(struct cmdargs const *arg) 990{ 991 if (arg->argc == arg->argn) 992 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 993 else if (arg->argc == arg->argn + 1) { 994 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 995 struct datalink *cx = arg->cx ? 996 arg->cx : bundle2datalink(arg->bundle, NULL); 997 if (cx) { 998 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 999 fsm_Reopen(&cx->physical->link.lcp.fsm); 1000 else 1001 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1); 1002 } else 1003 log_Printf(LogWARN, "open lcp: You must specify a link\n"); 1004 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1005 struct fsm *fp; 1006 1007 fp = &command_ChooseLink(arg)->ccp.fsm; 1008 if (fp->link->lcp.fsm.state != ST_OPENED) 1009 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n"); 1010 else if (fp->state == ST_OPENED) 1011 fsm_Reopen(fp); 1012 else { 1013 fp->open_mode = 0; /* Not passive any more */ 1014 if (fp->state == ST_STOPPED) { 1015 fsm_Down(fp); 1016 fsm_Up(fp); 1017 } else { 1018 fsm_Up(fp); 1019 fsm_Open(fp); 1020 } 1021 } 1022 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) { 1023 if (arg->cx) 1024 log_Printf(LogWARN, "open ipcp: You need not specify a link\n"); 1025 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 1026 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm); 1027 else 1028 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1); 1029 } else 1030 return -1; 1031 } else 1032 return -1; 1033 1034 return 0; 1035} 1036 1037static int 1038CloseCommand(struct cmdargs const *arg) 1039{ 1040 if (arg->argc == arg->argn) 1041 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN); 1042 else if (arg->argc == arg->argn + 1) { 1043 if (!strcasecmp(arg->argv[arg->argn], "lcp")) 1044 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP); 1045 else if (!strcasecmp(arg->argv[arg->argn], "ccp") || 1046 !strcasecmp(arg->argv[arg->argn], "ccp!")) { 1047 struct fsm *fp; 1048 1049 fp = &command_ChooseLink(arg)->ccp.fsm; 1050 if (fp->state == ST_OPENED) { 1051 fsm_Close(fp); 1052 if (arg->argv[arg->argn][3] == '!') 1053 fp->open_mode = 0; /* Stay ST_CLOSED */ 1054 else 1055 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */ 1056 } 1057 } else 1058 return -1; 1059 } else 1060 return -1; 1061 1062 return 0; 1063} 1064 1065static int 1066DownCommand(struct cmdargs const *arg) 1067{ 1068 if (arg->argc == arg->argn) { 1069 if (arg->cx) 1070 datalink_Down(arg->cx, CLOSE_STAYDOWN); 1071 else 1072 bundle_Down(arg->bundle, CLOSE_STAYDOWN); 1073 } else if (arg->argc == arg->argn + 1) { 1074 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1075 if (arg->cx) 1076 datalink_Down(arg->cx, CLOSE_LCP); 1077 else 1078 bundle_Down(arg->bundle, CLOSE_LCP); 1079 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1080 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm : 1081 &arg->bundle->ncp.mp.link.ccp.fsm; 1082 fsm2initial(fp); 1083 } else 1084 return -1; 1085 } else 1086 return -1; 1087 1088 return 0; 1089} 1090 1091static int 1092SetModemSpeed(struct cmdargs const *arg) 1093{ 1094 long speed; 1095 char *end; 1096 1097 if (arg->argc > arg->argn && *arg->argv[arg->argn]) { 1098 if (arg->argc > arg->argn+1) { 1099 log_Printf(LogWARN, "SetModemSpeed: Too many arguments"); 1100 return -1; 1101 } 1102 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) { 1103 physical_SetSync(arg->cx->physical); 1104 return 0; 1105 } 1106 end = NULL; 1107 speed = strtol(arg->argv[arg->argn], &end, 10); 1108 if (*end) { 1109 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", 1110 arg->argv[arg->argn]); 1111 return -1; 1112 } 1113 if (physical_SetSpeed(arg->cx->physical, speed)) 1114 return 0; 1115 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]); 1116 } else 1117 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n"); 1118 1119 return -1; 1120} 1121 1122static int 1123SetStoppedTimeout(struct cmdargs const *arg) 1124{ 1125 struct link *l = &arg->cx->physical->link; 1126 1127 l->lcp.fsm.StoppedTimer.load = 0; 1128 l->ccp.fsm.StoppedTimer.load = 0; 1129 if (arg->argc <= arg->argn+2) { 1130 if (arg->argc > arg->argn) { 1131 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS; 1132 if (arg->argc > arg->argn+1) 1133 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS; 1134 } 1135 return 0; 1136 } 1137 return -1; 1138} 1139 1140#define ismask(x) \ 1141 (*x == '0' && strlen(x) == 4 && strspn(x+1, "0123456789.") == 3) 1142 1143static int 1144SetServer(struct cmdargs const *arg) 1145{ 1146 int res = -1; 1147 1148 if (arg->argc > arg->argn && arg->argc < arg->argn+4) { 1149 const char *port, *passwd, *mask; 1150 1151 /* What's what ? */ 1152 port = arg->argv[arg->argn]; 1153 if (arg->argc == arg->argn + 2) { 1154 passwd = arg->argv[arg->argn+1]; 1155 mask = NULL; 1156 } else if (arg->argc == arg->argn + 3) { 1157 passwd = arg->argv[arg->argn+1]; 1158 mask = arg->argv[arg->argn+2]; 1159 if (!ismask(mask)) 1160 return -1; 1161 } else if (strcasecmp(port, "none") == 0) { 1162 if (server_Close(arg->bundle)) 1163 log_Printf(LogPHASE, "Disabled server port.\n"); 1164 return 0; 1165 } else 1166 return -1; 1167 1168 strncpy(server.passwd, passwd, sizeof server.passwd - 1); 1169 server.passwd[sizeof server.passwd - 1] = '\0'; 1170 1171 if (*port == '/') { 1172 mode_t imask; 1173 char *ptr, name[LINE_LEN + 12]; 1174 1175 if (mask != NULL) { 1176 unsigned m; 1177 1178 if (sscanf(mask, "%o", &m) == 1) 1179 imask = m; 1180 else 1181 return -1; 1182 } else 1183 imask = (mode_t)-1; 1184 1185 ptr = strstr(port, "%d"); 1186 if (ptr) { 1187 snprintf(name, sizeof name, "%.*s%d%s", 1188 (int)(ptr - port), port, arg->bundle->unit, ptr + 2); 1189 port = name; 1190 } 1191 res = server_LocalOpen(arg->bundle, port, imask); 1192 } else { 1193 int iport, add = 0; 1194 1195 if (mask != NULL) 1196 return -1; 1197 1198 if (*port == '+') { 1199 port++; 1200 add = 1; 1201 } 1202 if (strspn(port, "0123456789") != strlen(port)) { 1203 struct servent *s; 1204 1205 if ((s = getservbyname(port, "tcp")) == NULL) { 1206 iport = 0; 1207 log_Printf(LogWARN, "%s: Invalid port or service\n", port); 1208 } else 1209 iport = ntohs(s->s_port); 1210 } else 1211 iport = atoi(port); 1212 1213 if (iport) { 1214 if (add) 1215 iport += arg->bundle->unit; 1216 res = server_TcpOpen(arg->bundle, iport); 1217 } else 1218 res = -1; 1219 } 1220 } 1221 1222 return res; 1223} 1224 1225static int 1226SetModemParity(struct cmdargs const *arg) 1227{ 1228 return arg->argc > arg->argn ? modem_SetParity(arg->cx->physical, 1229 arg->argv[arg->argn]) : -1; 1230} 1231 1232static int 1233SetEscape(struct cmdargs const *arg) 1234{ 1235 int code; 1236 int argc = arg->argc - arg->argn; 1237 char const *const *argv = arg->argv + arg->argn; 1238 1239 for (code = 0; code < 33; code++) 1240 arg->cx->physical->async.cfg.EscMap[code] = 0; 1241 1242 while (argc-- > 0) { 1243 sscanf(*argv++, "%x", &code); 1244 code &= 0xff; 1245 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7)); 1246 arg->cx->physical->async.cfg.EscMap[32] = 1; 1247 } 1248 return 0; 1249} 1250 1251static struct in_addr 1252GetIpAddr(const char *cp) 1253{ 1254 struct hostent *hp; 1255 struct in_addr ipaddr; 1256 1257 if (inet_aton(cp, &ipaddr) == 0) { 1258 hp = gethostbyname(cp); 1259 if (hp && hp->h_addrtype == AF_INET) 1260 memcpy(&ipaddr, hp->h_addr, hp->h_length); 1261 else 1262 ipaddr.s_addr = 0; 1263 } 1264 return (ipaddr); 1265} 1266 1267static int 1268SetInterfaceAddr(struct cmdargs const *arg) 1269{ 1270 struct ipcp *ipcp = &arg->bundle->ncp.ipcp; 1271 const char *hisaddr; 1272 1273 if (arg->argc > arg->argn + 4) 1274 return -1; 1275 1276 hisaddr = NULL; 1277 ipcp->cfg.my_range.ipaddr.s_addr = INADDR_ANY; 1278 ipcp->cfg.peer_range.ipaddr.s_addr = INADDR_ANY; 1279 ipcp->cfg.HaveTriggerAddress = 0; 1280 ipcp->cfg.netmask.s_addr = INADDR_ANY; 1281 iplist_reset(&ipcp->cfg.peer_list); 1282 1283 if (arg->argc > arg->argn) { 1284 if (!ParseAddr(ipcp, arg->argc - arg->argn, arg->argv + arg->argn, 1285 &ipcp->cfg.my_range.ipaddr, &ipcp->cfg.my_range.mask, 1286 &ipcp->cfg.my_range.width)) 1287 return 1; 1288 if (arg->argc > arg->argn+1) { 1289 hisaddr = arg->argv[arg->argn+1]; 1290 if (arg->argc > arg->argn+2) { 1291 ipcp->cfg.netmask = GetIpAddr(arg->argv[arg->argn+2]); 1292 if (arg->argc > arg->argn+3) { 1293 ipcp->cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]); 1294 ipcp->cfg.HaveTriggerAddress = 1; 1295 } 1296 } 1297 } 1298 } 1299 1300 /* 0.0.0.0 means any address (0 bits) */ 1301 if (ipcp->cfg.my_range.ipaddr.s_addr == INADDR_ANY) { 1302 ipcp->cfg.my_range.mask.s_addr = INADDR_ANY; 1303 ipcp->cfg.my_range.width = 0; 1304 } 1305 ipcp->my_ip.s_addr = ipcp->cfg.my_range.ipaddr.s_addr; 1306 1307 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr, 1308 arg->bundle->phys_type.all & PHYS_AUTO)) 1309 return 4; 1310 1311 return 0; 1312} 1313 1314static int 1315SetVariable(struct cmdargs const *arg) 1316{ 1317 long long_val, param = (long)arg->cmd->args; 1318 int mode, dummyint; 1319 const char *argp; 1320 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 1321 const char *err = NULL; 1322 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 1323 struct in_addr dummyaddr, *addr; 1324 1325 if (arg->argc > arg->argn) 1326 argp = arg->argv[arg->argn]; 1327 else 1328 argp = ""; 1329 1330 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 1331 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n", 1332 arg->cmd->name); 1333 return 1; 1334 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1335 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n", 1336 arg->cmd->name, cx->name); 1337 cx = NULL; 1338 } 1339 1340 switch (param) { 1341 case VAR_AUTHKEY: 1342 if (bundle_Phase(arg->bundle) == PHASE_DEAD) { 1343 strncpy(arg->bundle->cfg.auth.key, argp, 1344 sizeof arg->bundle->cfg.auth.key - 1); 1345 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0'; 1346 } else { 1347 err = "set authkey: Only available at phase DEAD\n"; 1348 log_Printf(LogWARN, err); 1349 } 1350 break; 1351 1352 case VAR_AUTHNAME: 1353 if (bundle_Phase(arg->bundle) == PHASE_DEAD) { 1354 strncpy(arg->bundle->cfg.auth.name, argp, 1355 sizeof arg->bundle->cfg.auth.name - 1); 1356 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name - 1] = '\0'; 1357 } else { 1358 err = "set authname: Only available at phase DEAD\n"; 1359 log_Printf(LogWARN, err); 1360 } 1361 break; 1362 1363 case VAR_AUTOLOAD: 1364 if (arg->argc == arg->argn + 2 || arg->argc == arg->argn + 4) { 1365 arg->bundle->autoload.running = 1; 1366 arg->bundle->cfg.autoload.max.timeout = atoi(arg->argv[arg->argn]); 1367 arg->bundle->cfg.autoload.max.packets = atoi(arg->argv[arg->argn + 1]); 1368 if (arg->argc == arg->argn + 4) { 1369 arg->bundle->cfg.autoload.min.timeout = atoi(arg->argv[arg->argn + 2]); 1370 arg->bundle->cfg.autoload.min.packets = atoi(arg->argv[arg->argn + 3]); 1371 } else { 1372 arg->bundle->cfg.autoload.min.timeout = 0; 1373 arg->bundle->cfg.autoload.min.packets = 0; 1374 } 1375 } else { 1376 err = "Set autoload requires two or four arguments\n"; 1377 log_Printf(LogWARN, err); 1378 } 1379 break; 1380 1381 case VAR_DIAL: 1382 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1); 1383 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0'; 1384 break; 1385 1386 case VAR_LOGIN: 1387 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1); 1388 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0'; 1389 break; 1390 1391 case VAR_WINSIZE: 1392 if (arg->argc > arg->argn) { 1393 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]); 1394 if (l->ccp.cfg.deflate.out.winsize < 8 || 1395 l->ccp.cfg.deflate.out.winsize > 15) { 1396 log_Printf(LogWARN, "%d: Invalid outgoing window size\n", 1397 l->ccp.cfg.deflate.out.winsize); 1398 l->ccp.cfg.deflate.out.winsize = 15; 1399 } 1400 if (arg->argc > arg->argn+1) { 1401 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]); 1402 if (l->ccp.cfg.deflate.in.winsize < 8 || 1403 l->ccp.cfg.deflate.in.winsize > 15) { 1404 log_Printf(LogWARN, "%d: Invalid incoming window size\n", 1405 l->ccp.cfg.deflate.in.winsize); 1406 l->ccp.cfg.deflate.in.winsize = 15; 1407 } 1408 } else 1409 l->ccp.cfg.deflate.in.winsize = 0; 1410 } else { 1411 err = "No window size specified\n"; 1412 log_Printf(LogWARN, err); 1413 } 1414 break; 1415 1416 case VAR_DEVICE: 1417 physical_SetDeviceList(cx->physical, arg->argc - arg->argn, 1418 arg->argv + arg->argn); 1419 break; 1420 1421 case VAR_ACCMAP: 1422 if (arg->argc > arg->argn) { 1423 u_long ulong_val; 1424 sscanf(argp, "%lx", &ulong_val); 1425 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val; 1426 } else { 1427 err = "No accmap specified\n"; 1428 log_Printf(LogWARN, err); 1429 } 1430 break; 1431 1432 case VAR_MODE: 1433 mode = Nam2mode(argp); 1434 if (mode == PHYS_NONE || mode == PHYS_ALL) { 1435 log_Printf(LogWARN, "%s: Invalid mode\n", argp); 1436 return -1; 1437 } 1438 bundle_SetMode(arg->bundle, cx, mode); 1439 break; 1440 1441 case VAR_MRRU: 1442 if (bundle_Phase(arg->bundle) != PHASE_DEAD) { 1443 log_Printf(LogWARN, "mrru: Only changable at phase DEAD\n"); 1444 return 1; 1445 } 1446 long_val = atol(argp); 1447 if (long_val && long_val < MIN_MRU) { 1448 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU); 1449 return 1; 1450 } else if (long_val > MAX_MRU) { 1451 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU); 1452 return 1; 1453 } else 1454 arg->bundle->ncp.mp.cfg.mrru = long_val; 1455 break; 1456 1457 case VAR_MRU: 1458 long_val = atol(argp); 1459 if (long_val == 0) 1460 l->lcp.cfg.mru = DEF_MRU; 1461 else if (long_val < MIN_MRU) { 1462 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU); 1463 return 1; 1464 } else if (long_val > MAX_MRU) { 1465 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU); 1466 return 1; 1467 } else 1468 l->lcp.cfg.mru = long_val; 1469 break; 1470 1471 case VAR_MTU: 1472 long_val = atol(argp); 1473 if (long_val && long_val < MIN_MTU) { 1474 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU); 1475 return 1; 1476 } else if (long_val > MAX_MTU) { 1477 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU); 1478 return 1; 1479 } else 1480 arg->bundle->cfg.mtu = long_val; 1481 break; 1482 1483 case VAR_OPENMODE: 1484 if (strcasecmp(argp, "active") == 0) 1485 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ? 1486 atoi(arg->argv[arg->argn+1]) : 1; 1487 else if (strcasecmp(argp, "passive") == 0) 1488 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE; 1489 else { 1490 err = "%s: Invalid openmode\n"; 1491 log_Printf(LogWARN, err, argp); 1492 } 1493 break; 1494 1495 case VAR_PHONE: 1496 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1); 1497 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0'; 1498 cx->phone.alt = cx->phone.next = NULL; 1499 break; 1500 1501 case VAR_HANGUP: 1502 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1); 1503 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0'; 1504 break; 1505 1506 case VAR_IDLETIMEOUT: 1507 if (arg->argc > arg->argn+1) 1508 err = "Too many idle timeout values\n"; 1509 else if (arg->argc == arg->argn+1) 1510 bundle_SetIdleTimer(arg->bundle, atoi(argp)); 1511 if (err) 1512 log_Printf(LogWARN, err); 1513 break; 1514 1515 case VAR_LQRPERIOD: 1516 long_val = atol(argp); 1517 if (long_val < MIN_LQRPERIOD) { 1518 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n", 1519 long_val, MIN_LQRPERIOD); 1520 return 1; 1521 } else 1522 l->lcp.cfg.lqrperiod = long_val; 1523 break; 1524 1525 case VAR_LCPRETRY: 1526 long_val = atol(argp); 1527 if (long_val < MIN_FSMRETRY) { 1528 log_Printf(LogWARN, "%ld: Invalid LCP FSM retry period - min %d\n", 1529 long_val, MIN_FSMRETRY); 1530 return 1; 1531 } else 1532 cx->physical->link.lcp.cfg.fsmretry = long_val; 1533 break; 1534 1535 case VAR_CHAPRETRY: 1536 long_val = atol(argp); 1537 if (long_val < MIN_FSMRETRY) { 1538 log_Printf(LogWARN, "%ld: Invalid CHAP FSM retry period - min %d\n", 1539 long_val, MIN_FSMRETRY); 1540 return 1; 1541 } else 1542 cx->chap.auth.cfg.fsmretry = long_val; 1543 break; 1544 1545 case VAR_PAPRETRY: 1546 long_val = atol(argp); 1547 if (long_val < MIN_FSMRETRY) { 1548 log_Printf(LogWARN, "%ld: Invalid PAP FSM retry period - min %d\n", 1549 long_val, MIN_FSMRETRY); 1550 return 1; 1551 } else 1552 cx->pap.cfg.fsmretry = long_val; 1553 break; 1554 1555 case VAR_CCPRETRY: 1556 long_val = atol(argp); 1557 if (long_val < MIN_FSMRETRY) { 1558 log_Printf(LogWARN, "%ld: Invalid CCP FSM retry period - min %d\n", 1559 long_val, MIN_FSMRETRY); 1560 return 1; 1561 } else 1562 l->ccp.cfg.fsmretry = long_val; 1563 break; 1564 1565 case VAR_IPCPRETRY: 1566 long_val = atol(argp); 1567 if (long_val < MIN_FSMRETRY) { 1568 log_Printf(LogWARN, "%ld: Invalid IPCP FSM retry period - min %d\n", 1569 long_val, MIN_FSMRETRY); 1570 return 1; 1571 } else 1572 arg->bundle->ncp.ipcp.cfg.fsmretry = long_val; 1573 break; 1574 1575 case VAR_NBNS: 1576 case VAR_DNS: 1577 if (param == VAR_DNS) 1578 addr = arg->bundle->ncp.ipcp.cfg.ns.dns; 1579 else 1580 addr = arg->bundle->ncp.ipcp.cfg.ns.nbns; 1581 1582 addr[0].s_addr = addr[1].s_addr = INADDR_ANY; 1583 1584 if (arg->argc > arg->argn) { 1585 ParseAddr(&arg->bundle->ncp.ipcp, 1, arg->argv + arg->argn, 1586 addr, &dummyaddr, &dummyint); 1587 if (arg->argc > arg->argn+1) 1588 ParseAddr(&arg->bundle->ncp.ipcp, 1, arg->argv + arg->argn + 1, 1589 addr + 1, &dummyaddr, &dummyint); 1590 1591 if (addr[1].s_addr == INADDR_ANY) 1592 addr[1].s_addr = addr[0].s_addr; 1593 if (addr[0].s_addr == INADDR_ANY) 1594 addr[0].s_addr = addr[1].s_addr; 1595 } 1596 break; 1597 1598 case VAR_CALLBACK: 1599 cx->cfg.callback.opmask = 0; 1600 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) { 1601 if (!strcasecmp(arg->argv[dummyint], "auth")) 1602 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH); 1603 else if (!strcasecmp(arg->argv[dummyint], "cbcp")) 1604 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP); 1605 else if (!strcasecmp(arg->argv[dummyint], "e.164")) { 1606 if (dummyint == arg->argc - 1) 1607 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n"); 1608 else { 1609 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164); 1610 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint], 1611 sizeof cx->cfg.callback.msg - 1); 1612 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0'; 1613 } 1614 } else if (!strcasecmp(arg->argv[dummyint], "none")) 1615 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE); 1616 else 1617 return -1; 1618 } 1619 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE)) 1620 cx->cfg.callback.opmask = 0; 1621 break; 1622 1623 case VAR_CBCP: 1624 cx->cfg.cbcp.delay = 0; 1625 *cx->cfg.cbcp.phone = '\0'; 1626 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY; 1627 if (arg->argc > arg->argn) { 1628 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn], 1629 sizeof cx->cfg.cbcp.phone - 1); 1630 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0'; 1631 if (arg->argc > arg->argn + 1) { 1632 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]); 1633 if (arg->argc > arg->argn + 2) { 1634 long_val = atol(arg->argv[arg->argn + 2]); 1635 if (long_val < MIN_FSMRETRY) 1636 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n", 1637 long_val, MIN_FSMRETRY); 1638 else 1639 cx->cfg.cbcp.fsmretry = long_val; 1640 } 1641 } 1642 } 1643 break; 1644 1645 case VAR_CHOKED: 1646 arg->bundle->cfg.choked.timeout = atoi(argp); 1647 if (arg->bundle->cfg.choked.timeout <= 0) 1648 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT; 1649 break; 1650 1651 } 1652 1653 return err ? 1 : 0; 1654} 1655 1656static int 1657SetCtsRts(struct cmdargs const *arg) 1658{ 1659 if (arg->argc == arg->argn+1) { 1660 if (strcmp(arg->argv[arg->argn], "on") == 0) 1661 physical_SetRtsCts(arg->cx->physical, 1); 1662 else if (strcmp(arg->argv[arg->argn], "off") == 0) 1663 physical_SetRtsCts(arg->cx->physical, 0); 1664 else 1665 return -1; 1666 return 0; 1667 } 1668 return -1; 1669} 1670 1671static struct cmdtab const SetCommands[] = { 1672 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1673 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP}, 1674 {"authkey", "key", SetVariable, LOCAL_AUTH, 1675 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY}, 1676 {"authname", NULL, SetVariable, LOCAL_AUTH, 1677 "authentication name", "set authname name", (const void *)VAR_AUTHNAME}, 1678 {"autoload", NULL, SetVariable, LOCAL_AUTH, 1679 "auto link [de]activation", "set autoload maxtime maxload mintime minload", 1680 (const void *)VAR_AUTOLOAD}, 1681 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1682 "callback control", "set callback [none|auth|cbcp|" 1683 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK}, 1684 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1685 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]", 1686 (const void *)VAR_CBCP}, 1687 {"ccpretry", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1688 "FSM retry period", "set ccpretry value", (const void *)VAR_CCPRETRY}, 1689 {"chapretry", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1690 "CHAP retry period", "set chapretry value", (const void *)VAR_CHAPRETRY}, 1691 {"choked", NULL, SetVariable, LOCAL_AUTH, 1692 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED}, 1693 {"ctsrts", "crtscts", SetCtsRts, LOCAL_AUTH | LOCAL_CX, 1694 "Use hardware flow control", "set ctsrts [on|off]"}, 1695 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1696 "deflate window sizes", "set deflate out-winsize in-winsize", 1697 (const void *) VAR_WINSIZE}, 1698 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX, 1699 "modem device name", "set device|line device-name[,device-name]", 1700 (const void *) VAR_DEVICE}, 1701 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1702 "dialing script", "set dial chat-script", (const void *) VAR_DIAL}, 1703 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server", 1704 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS}, 1705 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH, 1706 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]"}, 1707 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX, 1708 "escape characters", "set escape hex-digit ..."}, 1709 {"filter", NULL, filter_Set, LOCAL_AUTH, 1710 "packet filters", "set filter alive|dial|in|out rule-no permit|deny " 1711 "[src_addr[/width]] [dst_addr[/width]] [tcp|udp|icmp [src [lt|eq|gt port]] " 1712 "[dst [lt|eq|gt port]] [estab] [syn] [finrst]]"}, 1713 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1714 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP}, 1715 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address", 1716 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"}, 1717 {"ipcpretry", NULL, SetVariable, LOCAL_AUTH, 1718 "FSM retry period", "set ipcpretry value", (const void *)VAR_IPCPRETRY}, 1719 {"lcpretry", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1720 "FSM retry period", "set lcpretry value", (const void *)VAR_LCPRETRY}, 1721 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level", 1722 "set log [local] [+|-]async|cbcp|ccp|chat|command|connect|debug|hdlc|id0|" 1723 "ipcp|lcp|lqm|phase|tcp/ip|timer|tun..."}, 1724 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1725 "login script", "set login chat-script", (const void *) VAR_LOGIN}, 1726 {"lqrperiod", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1727 "LQR period", "set lqrperiod value", (const void *)VAR_LQRPERIOD}, 1728 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value", 1729 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE}, 1730 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value", 1731 "set mrru value", (const void *)VAR_MRRU}, 1732 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 1733 "MRU value", "set mru value", (const void *)VAR_MRU}, 1734 {"mtu", NULL, SetVariable, LOCAL_AUTH, 1735 "interface MTU value", "set mtu value", (const void *)VAR_MTU}, 1736 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server", 1737 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS}, 1738 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode", 1739 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE}, 1740 {"papretry", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 1741 "PAP retry period", "set papretry value", (const void *)VAR_PAPRETRY}, 1742 {"parity", NULL, SetModemParity, LOCAL_AUTH | LOCAL_CX, 1743 "modem parity", "set parity [odd|even|none]"}, 1744 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)", 1745 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE}, 1746 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX, 1747 "Reconnect timeout", "set reconnect value ntries"}, 1748 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX, 1749 "Redial timeout", "set redial value|random[.value|random] [attempts]"}, 1750 {"server", "socket", SetServer, LOCAL_AUTH, 1751 "server port", "set server|socket TcpPort|LocalName|none password [mask]"}, 1752 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX, 1753 "modem speed", "set speed value"}, 1754 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX, 1755 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]"}, 1756 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout", 1757 "set timeout idletime", (const void *)VAR_IDLETIMEOUT}, 1758 {"vj", NULL, ipcp_vjset, LOCAL_AUTH, 1759 "vj values", "set vj slots|slotcomp [value]"}, 1760 {"weight", NULL, mp_SetDatalinkWeight, LOCAL_AUTH | LOCAL_CX, 1761 "datalink weighting", "set weight n"}, 1762 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 1763 "Display this message", "set help|? [command]", SetCommands}, 1764 {NULL, NULL, NULL}, 1765}; 1766 1767static int 1768SetCommand(struct cmdargs const *arg) 1769{ 1770 if (arg->argc > arg->argn) 1771 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv, 1772 arg->prompt, arg->cx); 1773 else if (arg->prompt) 1774 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for" 1775 " syntax help.\n"); 1776 else 1777 log_Printf(LogWARN, "set command must have arguments\n"); 1778 1779 return 0; 1780} 1781 1782static int 1783AddCommand(struct cmdargs const *arg) 1784{ 1785 struct in_addr dest, gateway, netmask; 1786 int gw, addrs; 1787 1788 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2) 1789 return -1; 1790 1791 addrs = 0; 1792 if (arg->argc == arg->argn+2) { 1793 if (!strcasecmp(arg->argv[arg->argn], "default")) 1794 dest.s_addr = netmask.s_addr = INADDR_ANY; 1795 else { 1796 int width; 1797 1798 if (!ParseAddr(&arg->bundle->ncp.ipcp, 1, arg->argv + arg->argn, 1799 &dest, &netmask, &width)) 1800 return -1; 1801 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6)) 1802 addrs = ROUTE_DSTMYADDR; 1803 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7)) 1804 addrs = ROUTE_DSTHISADDR; 1805 } 1806 gw = 1; 1807 } else { 1808 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 1809 addrs = ROUTE_DSTMYADDR; 1810 dest = arg->bundle->ncp.ipcp.my_ip; 1811 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 1812 addrs = ROUTE_DSTHISADDR; 1813 dest = arg->bundle->ncp.ipcp.peer_ip; 1814 } else 1815 dest = GetIpAddr(arg->argv[arg->argn]); 1816 netmask = GetIpAddr(arg->argv[arg->argn+1]); 1817 gw = 2; 1818 } 1819 1820 if (strcasecmp(arg->argv[arg->argn+gw], "HISADDR") == 0) { 1821 gateway = arg->bundle->ncp.ipcp.peer_ip; 1822 addrs |= ROUTE_GWHISADDR; 1823 } else 1824 gateway = GetIpAddr(arg->argv[arg->argn+gw]); 1825 1826 if (bundle_SetRoute(arg->bundle, RTM_ADD, dest, gateway, netmask, 1827 arg->cmd->args ? 1 : 0, (addrs & ROUTE_GWHISADDR) ? 1 : 0)) 1828 route_Add(&arg->bundle->ncp.ipcp.route, addrs, dest, netmask, gateway); 1829 1830 return 0; 1831} 1832 1833static int 1834DeleteCommand(struct cmdargs const *arg) 1835{ 1836 struct in_addr dest, none; 1837 int addrs; 1838 1839 if (arg->argc == arg->argn+1) { 1840 if(strcasecmp(arg->argv[arg->argn], "all") == 0) { 1841 route_IfDelete(arg->bundle, 0); 1842 route_DeleteAll(&arg->bundle->ncp.ipcp.route); 1843 } else { 1844 addrs = 0; 1845 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 1846 dest = arg->bundle->ncp.ipcp.my_ip; 1847 addrs = ROUTE_DSTMYADDR; 1848 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 1849 dest = arg->bundle->ncp.ipcp.peer_ip; 1850 addrs = ROUTE_DSTHISADDR; 1851 } else { 1852 if (strcasecmp(arg->argv[arg->argn], "default") == 0) 1853 dest.s_addr = INADDR_ANY; 1854 else 1855 dest = GetIpAddr(arg->argv[arg->argn]); 1856 addrs = ROUTE_STATIC; 1857 } 1858 none.s_addr = INADDR_ANY; 1859 bundle_SetRoute(arg->bundle, RTM_DELETE, dest, none, none, 1860 arg->cmd->args ? 1 : 0, 0); 1861 route_Delete(&arg->bundle->ncp.ipcp.route, addrs, dest); 1862 } 1863 } else 1864 return -1; 1865 1866 return 0; 1867} 1868 1869#ifndef NOALIAS 1870static int 1871AliasEnable(struct cmdargs const *arg) 1872{ 1873 if (arg->argc == arg->argn+1) { 1874 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 1875 arg->bundle->AliasEnabled = 1; 1876 return 0; 1877 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) { 1878 arg->bundle->AliasEnabled = 0; 1879 arg->bundle->cfg.opt &= ~OPT_IFACEALIAS; 1880 /* Don't iface_Clear() - there may be manually configured addresses */ 1881 return 0; 1882 } 1883 } 1884 1885 return -1; 1886} 1887 1888 1889static int 1890AliasOption(struct cmdargs const *arg) 1891{ 1892 long param = (long)arg->cmd->args; 1893 1894 if (arg->argc == arg->argn+1) { 1895 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 1896 if (arg->bundle->AliasEnabled) { 1897 PacketAliasSetMode(param, param); 1898 return 0; 1899 } 1900 log_Printf(LogWARN, "alias not enabled\n"); 1901 } else if (strcmp(arg->argv[arg->argn], "no") == 0) { 1902 if (arg->bundle->AliasEnabled) { 1903 PacketAliasSetMode(0, param); 1904 return 0; 1905 } 1906 log_Printf(LogWARN, "alias not enabled\n"); 1907 } 1908 } 1909 return -1; 1910} 1911#endif /* #ifndef NOALIAS */ 1912 1913static int 1914LinkCommand(struct cmdargs const *arg) 1915{ 1916 if (arg->argc > arg->argn+1) { 1917 char namelist[LINE_LEN]; 1918 struct datalink *cx; 1919 char *name; 1920 int result = 0; 1921 1922 if (!strcmp(arg->argv[arg->argn], "*")) { 1923 struct datalink *dl; 1924 1925 cx = arg->bundle->links; 1926 while (cx) { 1927 /* Watch it, the command could be a ``remove'' */ 1928 dl = cx->next; 1929 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 1930 arg->prompt, cx); 1931 for (cx = arg->bundle->links; cx; cx = cx->next) 1932 if (cx == dl) 1933 break; /* Pointer's still valid ! */ 1934 } 1935 } else { 1936 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 1937 namelist[sizeof namelist - 1] = '\0'; 1938 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 1939 if (!bundle2datalink(arg->bundle, name)) { 1940 log_Printf(LogWARN, "link: %s: Invalid link name\n", name); 1941 return 1; 1942 } 1943 1944 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 1945 namelist[sizeof namelist - 1] = '\0'; 1946 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) { 1947 cx = bundle2datalink(arg->bundle, name); 1948 if (cx) 1949 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 1950 arg->prompt, cx); 1951 else { 1952 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name); 1953 result++; 1954 } 1955 } 1956 } 1957 return result; 1958 } 1959 1960 log_Printf(LogWARN, "Usage: %s\n", arg->cmd->syntax); 1961 return 2; 1962} 1963 1964struct link * 1965command_ChooseLink(struct cmdargs const *arg) 1966{ 1967 if (arg->cx) 1968 return &arg->cx->physical->link; 1969 else if (!arg->bundle->ncp.mp.cfg.mrru) { 1970 struct datalink *dl = bundle2datalink(arg->bundle, NULL); 1971 if (dl) 1972 return &dl->physical->link; 1973 } 1974 return &arg->bundle->ncp.mp.link; 1975} 1976 1977static const char * 1978ident_cmd(const char *cmd, unsigned *keep, unsigned *add) 1979{ 1980 const char *result; 1981 1982 switch (*cmd) { 1983 case 'A': 1984 case 'a': 1985 result = "accept"; 1986 *keep = NEG_MYMASK; 1987 *add = NEG_ACCEPTED; 1988 break; 1989 case 'D': 1990 case 'd': 1991 switch (cmd[1]) { 1992 case 'E': 1993 case 'e': 1994 result = "deny"; 1995 *keep = NEG_MYMASK; 1996 *add = 0; 1997 break; 1998 case 'I': 1999 case 'i': 2000 result = "disable"; 2001 *keep = NEG_HISMASK; 2002 *add = 0; 2003 break; 2004 default: 2005 return NULL; 2006 } 2007 break; 2008 case 'E': 2009 case 'e': 2010 result = "enable"; 2011 *keep = NEG_HISMASK; 2012 *add = NEG_ENABLED; 2013 break; 2014 default: 2015 return NULL; 2016 } 2017 2018 return result; 2019} 2020 2021static int 2022OptSet(struct cmdargs const *arg) 2023{ 2024 int bit = (int)(long)arg->cmd->args; 2025 const char *cmd; 2026 unsigned keep; /* Keep these bits */ 2027 unsigned add; /* Add these bits */ 2028 2029 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2030 return 1; 2031 2032 if (add) 2033 arg->bundle->cfg.opt |= bit; 2034 else 2035 arg->bundle->cfg.opt &= ~bit; 2036 return 0; 2037} 2038 2039static int 2040IfaceAliasOptSet(struct cmdargs const *arg) 2041{ 2042 unsigned save = arg->bundle->cfg.opt; 2043 int result = OptSet(arg); 2044 2045 if (result == 0) 2046 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->AliasEnabled) { 2047 arg->bundle->cfg.opt = save; 2048 log_Printf(LogWARN, "Cannot enable iface-alias without IP aliasing\n"); 2049 result = 2; 2050 } 2051 2052 return result; 2053} 2054 2055static int 2056NegotiateSet(struct cmdargs const *arg) 2057{ 2058 long param = (long)arg->cmd->args; 2059 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 2060 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 2061 const char *cmd; 2062 unsigned keep; /* Keep these bits */ 2063 unsigned add; /* Add these bits */ 2064 2065 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2066 return 1; 2067 2068 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 2069 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n", 2070 cmd, arg->cmd->name); 2071 return 2; 2072 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 2073 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n", 2074 cmd, arg->cmd->name, cx->name); 2075 cx = NULL; 2076 } 2077 2078 switch (param) { 2079 case NEG_ACFCOMP: 2080 cx->physical->link.lcp.cfg.acfcomp &= keep; 2081 cx->physical->link.lcp.cfg.acfcomp |= add; 2082 break; 2083 case NEG_CHAP: 2084 cx->physical->link.lcp.cfg.chap &= keep; 2085 cx->physical->link.lcp.cfg.chap |= add; 2086 break; 2087 case NEG_DEFLATE: 2088 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep; 2089 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add; 2090 break; 2091 case NEG_DNS: 2092 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep; 2093 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add; 2094 break; 2095 case NEG_LQR: 2096 cx->physical->link.lcp.cfg.lqr &= keep; 2097 cx->physical->link.lcp.cfg.lqr |= add; 2098 break; 2099 case NEG_PAP: 2100 cx->physical->link.lcp.cfg.pap &= keep; 2101 cx->physical->link.lcp.cfg.pap |= add; 2102 break; 2103 case NEG_PPPDDEFLATE: 2104 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep; 2105 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add; 2106 break; 2107 case NEG_PRED1: 2108 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep; 2109 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add; 2110 break; 2111 case NEG_PROTOCOMP: 2112 cx->physical->link.lcp.cfg.protocomp &= keep; 2113 cx->physical->link.lcp.cfg.protocomp |= add; 2114 break; 2115 case NEG_SHORTSEQ: 2116 if (bundle_Phase(arg->bundle) != PHASE_DEAD) 2117 log_Printf(LogWARN, "shortseq: Only changable at phase DEAD\n"); 2118 else { 2119 arg->bundle->ncp.mp.cfg.shortseq &= keep; 2120 arg->bundle->ncp.mp.cfg.shortseq |= add; 2121 } 2122 break; 2123 case NEG_VJCOMP: 2124 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep; 2125 arg->bundle->ncp.ipcp.cfg.vj.neg |= add; 2126 break; 2127 } 2128 2129 return 0; 2130} 2131 2132static struct cmdtab const NegotiateCommands[] = { 2133 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids", 2134 "disable|enable", (const void *)OPT_IDCHECK}, 2135 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface", 2136 "disable|enable", (const void *)OPT_LOOPBACK}, 2137 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file", 2138 "disable|enable", (const void *)OPT_PASSWDAUTH}, 2139 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create proxy ARP entry", 2140 "disable|enable", (const void *)OPT_PROXY}, 2141 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes", 2142 "disable|enable", (const void *)OPT_SROUTES}, 2143 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput", 2144 "disable|enable", (const void *)OPT_THROUGHPUT}, 2145 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp", 2146 "disable|enable", (const void *)OPT_UTMP}, 2147 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH, 2148 "maintain interface addresses", "disable|enable", 2149 (const void *)OPT_IFACEALIAS}, 2150 2151#define OPT_MAX 8 /* accept/deny allowed below and not above */ 2152 2153 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2154 "Address & Control field compression", "accept|deny|disable|enable", 2155 (const void *)NEG_ACFCOMP}, 2156 {"chap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2157 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable", 2158 (const void *)NEG_CHAP}, 2159 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2160 "Deflate compression", "accept|deny|disable|enable", 2161 (const void *)NEG_DEFLATE}, 2162 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2163 "Deflate (type 24) compression", "accept|deny|disable|enable", 2164 (const void *)NEG_PPPDDEFLATE}, 2165 {"dns", NULL, NegotiateSet, LOCAL_AUTH, 2166 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS}, 2167 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2168 "Link Quality Reports", "accept|deny|disable|enable", 2169 (const void *)NEG_LQR}, 2170 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2171 "Password Authentication protocol", "accept|deny|disable|enable", 2172 (const void *)NEG_PAP}, 2173 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2174 "Predictor 1 compression", "accept|deny|disable|enable", 2175 (const void *)NEG_PRED1}, 2176 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2177 "Protocol field compression", "accept|deny|disable|enable", 2178 (const void *)NEG_PROTOCOMP}, 2179 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH, 2180 "MP Short Sequence Numbers", "accept|deny|disable|enable", 2181 (const void *)NEG_SHORTSEQ}, 2182 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH, 2183 "Van Jacobson header compression", "accept|deny|disable|enable", 2184 (const void *)NEG_VJCOMP}, 2185 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2186 "Display this message", "accept|deny|disable|enable help|? [value]", 2187 NegotiateCommands}, 2188 {NULL, NULL, NULL}, 2189}; 2190 2191static int 2192NegotiateCommand(struct cmdargs const *arg) 2193{ 2194 if (arg->argc > arg->argn) { 2195 char const *argv[3]; 2196 unsigned keep, add; 2197 int n; 2198 2199 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL) 2200 return -1; 2201 argv[2] = NULL; 2202 2203 for (n = arg->argn; n < arg->argc; n++) { 2204 argv[1] = arg->argv[n]; 2205 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ? 2206 0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx); 2207 } 2208 } else if (arg->prompt) 2209 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n", 2210 arg->argv[arg->argn-1]); 2211 else 2212 log_Printf(LogWARN, "%s command must have arguments\n", 2213 arg->argv[arg->argn] ); 2214 2215 return 0; 2216} 2217 2218const char * 2219command_ShowNegval(unsigned val) 2220{ 2221 switch (val&3) { 2222 case 1: return "disabled & accepted"; 2223 case 2: return "enabled & denied"; 2224 case 3: return "enabled & accepted"; 2225 } 2226 return "disabled & denied"; 2227} 2228 2229static int 2230ClearCommand(struct cmdargs const *arg) 2231{ 2232 struct pppThroughput *t; 2233 struct datalink *cx; 2234 int i, clear_type; 2235 2236 if (arg->argc < arg->argn + 1) 2237 return -1; 2238 2239 if (strcasecmp(arg->argv[arg->argn], "modem") == 0) { 2240 cx = arg->cx; 2241 if (!cx) 2242 cx = bundle2datalink(arg->bundle, NULL); 2243 if (!cx) { 2244 log_Printf(LogWARN, "A link must be specified for ``clear modem''\n"); 2245 return 1; 2246 } 2247 t = &cx->physical->link.throughput; 2248 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0) 2249 t = &arg->bundle->ncp.ipcp.throughput; 2250 else 2251 return -1; 2252 2253 if (arg->argc > arg->argn + 1) { 2254 clear_type = 0; 2255 for (i = arg->argn + 1; i < arg->argc; i++) 2256 if (strcasecmp(arg->argv[i], "overall") == 0) 2257 clear_type |= THROUGHPUT_OVERALL; 2258 else if (strcasecmp(arg->argv[i], "current") == 0) 2259 clear_type |= THROUGHPUT_CURRENT; 2260 else if (strcasecmp(arg->argv[i], "peak") == 0) 2261 clear_type |= THROUGHPUT_PEAK; 2262 else 2263 return -1; 2264 } else 2265 clear_type = THROUGHPUT_ALL; 2266 2267 throughput_clear(t, clear_type, arg->prompt); 2268 return 0; 2269} 2270 2271static int 2272RunListCommand(struct cmdargs const *arg) 2273{ 2274 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???"; 2275 2276 if (arg->argc > arg->argn) 2277 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv, 2278 arg->prompt, arg->cx); 2279 else if (arg->prompt) 2280 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help" 2281 " <option>' for syntax help.\n", cmd, cmd); 2282 else 2283 log_Printf(LogWARN, "%s command must have arguments\n", cmd); 2284 2285 return 0; 2286} 2287 2288static int 2289IfaceAddCommand(struct cmdargs const *arg) 2290{ 2291 int bits, n, how; 2292 struct in_addr ifa, mask, brd; 2293 2294 if (arg->argc == arg->argn + 2) { 2295 if (!ParseAddr(NULL, 1, arg->argv + arg->argn, &ifa, &mask, &bits)) 2296 return -1; 2297 n = 1; 2298 } else if (arg->argc == arg->argn + 3) { 2299 if (!ParseAddr(NULL, 1, arg->argv + arg->argn, &ifa, NULL, NULL)) 2300 return -1; 2301 if (!ParseAddr(NULL, 1, arg->argv + arg->argn + 1, &mask, NULL, NULL)) 2302 return -1; 2303 n = 2; 2304 } else 2305 return -1; 2306 2307 if (!ParseAddr(NULL, 1, arg->argv + arg->argn + n, &brd, NULL, NULL)) 2308 return -1; 2309 2310 how = IFACE_ADD_LAST; 2311 if (arg->cmd->args) 2312 how |= IFACE_FORCE_ADD; 2313 2314 return !iface_inAdd(arg->bundle->iface, ifa, mask, brd, how); 2315} 2316 2317static int 2318IfaceDeleteCommand(struct cmdargs const *arg) 2319{ 2320 struct in_addr ifa; 2321 int ok; 2322 2323 if (arg->argc != arg->argn + 1) 2324 return -1; 2325 2326 if (!ParseAddr(NULL, 1, arg->argv + arg->argn, &ifa, NULL, NULL)) 2327 return -1; 2328 2329 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED && 2330 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa.s_addr) { 2331 log_Printf(LogWARN, "%s: Cannot remove active interface address\n", 2332 inet_ntoa(ifa)); 2333 return 1; 2334 } 2335 2336 ok = iface_inDelete(arg->bundle->iface, ifa); 2337 if (!ok) { 2338 if (arg->cmd->args) 2339 ok = 1; 2340 else if (arg->prompt) 2341 prompt_Printf(arg->prompt, "%s: No such address\n", inet_ntoa(ifa)); 2342 else 2343 log_Printf(LogWARN, "%s: No such address\n", inet_ntoa(ifa)); 2344 } 2345 2346 return !ok; 2347} 2348 2349static int 2350IfaceClearCommand(struct cmdargs const *arg) 2351{ 2352 int how; 2353 2354 if (arg->argc != arg->argn) 2355 return -1; 2356 2357 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED ? 2358 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL; 2359 iface_Clear(arg->bundle->iface, how); 2360 2361 return 0; 2362} 2363