1 /*- 2 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 3 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 4 * Internet Initiative Japan, Inc (IIJ) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <netinet/in_systm.h> 33 #include <netinet/in.h> 34 #include <netinet/ip.h> 35 #include <arpa/inet.h> 36 #include <sys/socket.h> 37 #include <net/route.h> 38 #include <netdb.h> 39 #include <sys/un.h> 40 41 #include <ctype.h> 42 #include <errno.h> 43 #include <fcntl.h> 44 #include <paths.h> 45 #include <stdarg.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <sys/wait.h> 50 #include <termios.h> 51 #include <unistd.h> 52 53 #ifndef NONAT 54 #ifdef LOCALNAT 55 #include "alias.h" 56 #else 57 #include <alias.h> 58 #endif 59 #endif 60 61 #include "layer.h" 62 #include "defs.h" 63 #include "command.h" 64 #include "mbuf.h" 65 #include "log.h" 66 #include "timer.h" 67 #include "fsm.h" 68 #include "iplist.h" 69 #include "throughput.h" 70 #include "slcompress.h" 71 #include "lqr.h" 72 #include "hdlc.h" 73 #include "lcp.h" 74 #include "ncpaddr.h" 75 #include "ipcp.h" 76 #ifndef NONAT 77 #include "nat_cmd.h" 78 #endif 79 #include "systems.h" 80 #include "filter.h" 81 #include "descriptor.h" 82 #include "main.h" 83 #include "route.h" 84 #include "ccp.h" 85 #include "auth.h" 86 #include "async.h" 87 #include "link.h" 88 #include "physical.h" 89 #include "mp.h" 90 #ifndef NORADIUS 91 #include "radius.h" 92 #endif 93 #include "ipv6cp.h" 94 #include "ncp.h" 95 #include "bundle.h" 96 #include "server.h" 97 #include "prompt.h" 98 #include "chat.h" 99 #include "chap.h" 100 #include "cbcp.h" 101 #include "datalink.h" 102 #include "iface.h" 103 #include "id.h" 104 #include "probe.h" 105 106 /* ``set'' values */ 107 #define VAR_AUTHKEY 0 108 #define VAR_DIAL 1 109 #define VAR_LOGIN 2 110 #define VAR_AUTHNAME 3 111 #define VAR_AUTOLOAD 4 112 #define VAR_WINSIZE 5 113 #define VAR_DEVICE 6 114 #define VAR_ACCMAP 7 115 #define VAR_MRRU 8 116 #define VAR_MRU 9 117 #define VAR_MTU 10 118 #define VAR_OPENMODE 11 119 #define VAR_PHONE 12 120 #define VAR_HANGUP 13 121 #define VAR_IDLETIMEOUT 14 122 #define VAR_LQRPERIOD 15 123 #define VAR_LCPRETRY 16 124 #define VAR_CHAPRETRY 17 125 #define VAR_PAPRETRY 18 126 #define VAR_CCPRETRY 19 127 #define VAR_IPCPRETRY 20 128 #define VAR_DNS 21 129 #define VAR_NBNS 22 130 #define VAR_MODE 23 131 #define VAR_CALLBACK 24 132 #define VAR_CBCP 25 133 #define VAR_CHOKED 26 134 #define VAR_SENDPIPE 27 135 #define VAR_RECVPIPE 28 136 #define VAR_RADIUS 29 137 #define VAR_CD 30 138 #define VAR_PARITY 31 139 #define VAR_CRTSCTS 32 140 #define VAR_URGENTPORTS 33 141 #define VAR_LOGOUT 34 142 #define VAR_IFQUEUE 35 143 #define VAR_MPPE 36 144 #define VAR_IPV6CPRETRY 37 145 #define VAR_RAD_ALIVE 38 146 #define VAR_PPPOE 39 147 148 /* ``accept|deny|disable|enable'' masks */ 149 #define NEG_HISMASK (1) 150 #define NEG_MYMASK (2) 151 152 /* ``accept|deny|disable|enable'' values */ 153 #define NEG_ACFCOMP 40 154 #define NEG_CHAP05 41 155 #define NEG_CHAP80 42 156 #define NEG_CHAP80LM 43 157 #define NEG_DEFLATE 44 158 #define NEG_DNS 45 159 #define NEG_ENDDISC 46 160 #define NEG_LQR 47 161 #define NEG_PAP 48 162 #define NEG_PPPDDEFLATE 49 163 #define NEG_PRED1 50 164 #define NEG_PROTOCOMP 51 165 #define NEG_SHORTSEQ 52 166 #define NEG_VJCOMP 53 167 #define NEG_MPPE 54 168 #define NEG_CHAP81 55 169 170 const char Version[] = "3.2"; 171 172 static int ShowCommand(struct cmdargs const *); 173 static int TerminalCommand(struct cmdargs const *); 174 static int QuitCommand(struct cmdargs const *); 175 static int OpenCommand(struct cmdargs const *); 176 static int CloseCommand(struct cmdargs const *); 177 static int DownCommand(struct cmdargs const *); 178 static int SetCommand(struct cmdargs const *); 179 static int LinkCommand(struct cmdargs const *); 180 static int AddCommand(struct cmdargs const *); 181 static int DeleteCommand(struct cmdargs const *); 182 static int NegotiateCommand(struct cmdargs const *); 183 static int ClearCommand(struct cmdargs const *); 184 static int RunListCommand(struct cmdargs const *); 185 static int IfaceAddCommand(struct cmdargs const *); 186 static int IfaceDeleteCommand(struct cmdargs const *); 187 static int IfaceClearCommand(struct cmdargs const *); 188 static int SetProcTitle(struct cmdargs const *); 189 #ifndef NONAT 190 static int NatEnable(struct cmdargs const *); 191 static int NatOption(struct cmdargs const *); 192 #endif 193 194 static const char * 195 showcx(struct cmdtab const *cmd) 196 { 197 if (cmd->lauth & LOCAL_CX) 198 return "(c)"; 199 else if (cmd->lauth & LOCAL_CX_OPT) 200 return "(o)"; 201 202 return ""; 203 } 204 205 static int 206 HelpCommand(struct cmdargs const *arg) 207 { 208 struct cmdtab const *cmd; 209 int n, cmax, dmax, cols, cxlen; 210 const char *cx; 211 212 if (!arg->prompt) { 213 log_Printf(LogWARN, "help: Cannot help without a prompt\n"); 214 return 0; 215 } 216 217 if (arg->argc > arg->argn) { 218 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++) 219 if ((cmd->lauth & arg->prompt->auth) && 220 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) || 221 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) { 222 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd)); 223 return 0; 224 } 225 return -1; 226 } 227 228 cmax = dmax = 0; 229 for (cmd = arg->cmdtab; cmd->func; cmd++) 230 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 231 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax) 232 cmax = n; 233 if ((n = strlen(cmd->helpmes)) > dmax) 234 dmax = n; 235 } 236 237 cols = 80 / (dmax + cmax + 3); 238 n = 0; 239 prompt_Printf(arg->prompt, "(o) = Optional context," 240 " (c) = Context required\n"); 241 for (cmd = arg->cmdtab; cmd->func; cmd++) 242 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 243 cx = showcx(cmd); 244 cxlen = cmax - strlen(cmd->name); 245 if (n % cols != 0) 246 prompt_Printf(arg->prompt, " "); 247 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s", 248 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes); 249 if (++n % cols == 0) 250 prompt_Printf(arg->prompt, "\n"); 251 } 252 if (n % cols != 0) 253 prompt_Printf(arg->prompt, "\n"); 254 255 return 0; 256 } 257 258 static int 259 IdentCommand(struct cmdargs const *arg) 260 { 261 Concatinate(arg->cx->physical->link.lcp.cfg.ident, 262 sizeof arg->cx->physical->link.lcp.cfg.ident, 263 arg->argc - arg->argn, arg->argv + arg->argn); 264 return 0; 265 } 266 267 static int 268 SendIdentification(struct cmdargs const *arg) 269 { 270 if (arg->cx->state < DATALINK_LCP) { 271 log_Printf(LogWARN, "sendident: link has not reached LCP\n"); 272 return 2; 273 } 274 return lcp_SendIdentification(&arg->cx->physical->link.lcp) ? 0 : 1; 275 } 276 277 static int 278 CloneCommand(struct cmdargs const *arg) 279 { 280 char namelist[LINE_LEN]; 281 char *name; 282 int f; 283 284 if (arg->argc == arg->argn) 285 return -1; 286 287 namelist[sizeof namelist - 1] = '\0'; 288 for (f = arg->argn; f < arg->argc; f++) { 289 strncpy(namelist, arg->argv[f], sizeof namelist - 1); 290 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 291 bundle_DatalinkClone(arg->bundle, arg->cx, name); 292 } 293 294 return 0; 295 } 296 297 static int 298 RemoveCommand(struct cmdargs const *arg) 299 { 300 if (arg->argc != arg->argn) 301 return -1; 302 303 if (arg->cx->state != DATALINK_CLOSED) { 304 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n"); 305 return 2; 306 } 307 308 bundle_DatalinkRemove(arg->bundle, arg->cx); 309 return 0; 310 } 311 312 static int 313 RenameCommand(struct cmdargs const *arg) 314 { 315 if (arg->argc != arg->argn + 1) 316 return -1; 317 318 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn])) 319 return 0; 320 321 log_Printf(LogWARN, "%s -> %s: target name already exists\n", 322 arg->cx->name, arg->argv[arg->argn]); 323 return 1; 324 } 325 326 static int 327 LoadCommand(struct cmdargs const *arg) 328 { 329 const char *err; 330 int n, mode; 331 332 mode = arg->bundle->phys_type.all; 333 334 if (arg->argn < arg->argc) { 335 for (n = arg->argn; n < arg->argc; n++) 336 if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) { 337 log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err); 338 return 1; 339 } 340 341 for (n = arg->argn; n < arg->argc; n++) { 342 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 343 system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx); 344 } 345 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 346 } else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) { 347 log_Printf(LogWARN, "default: %s\n", err); 348 return 1; 349 } else { 350 bundle_SetLabel(arg->bundle, "default"); 351 system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx); 352 bundle_SetLabel(arg->bundle, "default"); 353 } 354 355 return 0; 356 } 357 358 static int 359 LogCommand(struct cmdargs const *arg) 360 { 361 char buf[LINE_LEN]; 362 363 if (arg->argn < arg->argc) { 364 char *argv[MAXARGS]; 365 int argc = arg->argc - arg->argn; 366 367 if (argc >= sizeof argv / sizeof argv[0]) { 368 argc = sizeof argv / sizeof argv[0] - 1; 369 log_Printf(LogWARN, "Truncating log command to %d args\n", argc); 370 } 371 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 372 Concatinate(buf, sizeof buf, argc, (const char *const *)argv); 373 log_Printf(LogLOG, "%s\n", buf); 374 command_Free(argc, argv); 375 return 0; 376 } 377 378 return -1; 379 } 380 381 static int 382 SaveCommand(struct cmdargs const *arg) 383 { 384 log_Printf(LogWARN, "save command is not yet implemented.\n"); 385 return 1; 386 } 387 388 static int 389 DialCommand(struct cmdargs const *arg) 390 { 391 int res; 392 393 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO))) 394 || (!arg->cx && 395 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) { 396 log_Printf(LogWARN, "Manual dial is only available for auto and" 397 " interactive links\n"); 398 return 1; 399 } 400 401 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0) 402 return res; 403 404 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 405 406 return 0; 407 } 408 409 #define isinword(ch) (isalnum(ch) || (ch) == '_') 410 411 static char * 412 strstrword(char *big, const char *little) 413 { 414 /* Get the first occurance of the word ``little'' in ``big'' */ 415 char *pos; 416 int len; 417 418 pos = big; 419 len = strlen(little); 420 421 while ((pos = strstr(pos, little)) != NULL) 422 if ((pos != big && isinword(pos[-1])) || isinword(pos[len])) 423 pos++; 424 else if (pos != big && pos[-1] == '\\') 425 memmove(pos - 1, pos, strlen(pos) + 1); 426 else 427 break; 428 429 return pos; 430 } 431 432 static char * 433 subst(char *tgt, const char *oldstr, const char *newstr) 434 { 435 /* tgt is a malloc()d area... realloc() as necessary */ 436 char *word, *ntgt; 437 int ltgt, loldstr, lnewstr, pos; 438 439 if ((word = strstrword(tgt, oldstr)) == NULL) 440 return tgt; 441 442 ltgt = strlen(tgt) + 1; 443 loldstr = strlen(oldstr); 444 lnewstr = strlen(newstr); 445 do { 446 pos = word - tgt; 447 if (loldstr > lnewstr) 448 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 449 if (loldstr != lnewstr) { 450 ntgt = realloc(tgt, ltgt += lnewstr - loldstr); 451 if (ntgt == NULL) 452 break; /* Oh wonderful ! */ 453 word = ntgt + pos; 454 tgt = ntgt; 455 } 456 if (lnewstr > loldstr) 457 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 458 bcopy(newstr, word, lnewstr); 459 } while ((word = strstrword(word, oldstr))); 460 461 return tgt; 462 } 463 464 static char * 465 substip(char *tgt, const char *oldstr, struct in_addr ip) 466 { 467 return subst(tgt, oldstr, inet_ntoa(ip)); 468 } 469 470 static char * 471 substlong(char *tgt, const char *oldstr, long l) 472 { 473 char buf[23]; 474 475 snprintf(buf, sizeof buf, "%ld", l); 476 477 return subst(tgt, oldstr, buf); 478 } 479 480 static char * 481 substull(char *tgt, const char *oldstr, unsigned long long ull) 482 { 483 char buf[21]; 484 485 snprintf(buf, sizeof buf, "%llu", ull); 486 487 return subst(tgt, oldstr, buf); 488 } 489 490 491 #ifndef NOINET6 492 static char * 493 substipv6(char *tgt, const char *oldstr, const struct ncpaddr *ip) 494 { 495 return subst(tgt, oldstr, ncpaddr_ntoa(ip)); 496 } 497 498 #ifndef NORADIUS 499 static char * 500 substipv6prefix(char *tgt, const char *oldstr, const uint8_t *ipv6prefix) 501 { 502 uint8_t ipv6addr[INET6_ADDRSTRLEN]; 503 uint8_t prefix[INET6_ADDRSTRLEN + sizeof("/128") - 1]; 504 505 if (ipv6prefix) { 506 inet_ntop(AF_INET6, &ipv6prefix[2], ipv6addr, sizeof(ipv6addr)); 507 snprintf(prefix, sizeof(prefix), "%s/%d", ipv6addr, ipv6prefix[1]); 508 } else 509 prefix[0] = '\0'; 510 return subst(tgt, oldstr, prefix); 511 } 512 #endif 513 #endif 514 515 void 516 command_Expand(char **nargv, int argc, char const *const *oargv, 517 struct bundle *bundle, int inc0, pid_t pid) 518 { 519 int arg, secs; 520 char uptime[20]; 521 unsigned long long oin, oout, pin, pout; 522 523 if (inc0) 524 arg = 0; /* Start at arg 0 */ 525 else { 526 nargv[0] = strdup(oargv[0]); 527 arg = 1; 528 } 529 530 secs = bundle_Uptime(bundle); 531 snprintf(uptime, sizeof uptime, "%d:%02d:%02d", 532 secs / 3600, (secs / 60) % 60, secs % 60); 533 oin = bundle->ncp.ipcp.throughput.OctetsIn; 534 oout = bundle->ncp.ipcp.throughput.OctetsOut; 535 pin = bundle->ncp.ipcp.throughput.PacketsIn; 536 pout = bundle->ncp.ipcp.throughput.PacketsOut; 537 #ifndef NOINET6 538 oin += bundle->ncp.ipv6cp.throughput.OctetsIn; 539 oout += bundle->ncp.ipv6cp.throughput.OctetsOut; 540 pin += bundle->ncp.ipv6cp.throughput.PacketsIn; 541 pout += bundle->ncp.ipv6cp.throughput.PacketsOut; 542 #endif 543 544 for (; arg < argc; arg++) { 545 nargv[arg] = strdup(oargv[arg]); 546 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name); 547 nargv[arg] = subst(nargv[arg], "COMPILATIONDATE", __DATE__); 548 nargv[arg] = substip(nargv[arg], "DNS0", bundle->ncp.ipcp.ns.dns[0]); 549 nargv[arg] = substip(nargv[arg], "DNS1", bundle->ncp.ipcp.ns.dns[1]); 550 nargv[arg] = subst(nargv[arg], "ENDDISC", 551 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class, 552 bundle->ncp.mp.cfg.enddisc.address, 553 bundle->ncp.mp.cfg.enddisc.len)); 554 nargv[arg] = substip(nargv[arg], "HISADDR", bundle->ncp.ipcp.peer_ip); 555 #ifndef NOINET6 556 nargv[arg] = substipv6(nargv[arg], "HISADDR6", &bundle->ncp.ipv6cp.hisaddr); 557 #endif 558 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name); 559 nargv[arg] = substull(nargv[arg], "IPOCTETSIN", 560 bundle->ncp.ipcp.throughput.OctetsIn); 561 nargv[arg] = substull(nargv[arg], "IPOCTETSOUT", 562 bundle->ncp.ipcp.throughput.OctetsOut); 563 nargv[arg] = substull(nargv[arg], "IPPACKETSIN", 564 bundle->ncp.ipcp.throughput.PacketsIn); 565 nargv[arg] = substull(nargv[arg], "IPPACKETSOUT", 566 bundle->ncp.ipcp.throughput.PacketsOut); 567 #ifndef NOINET6 568 nargv[arg] = substull(nargv[arg], "IPV6OCTETSIN", 569 bundle->ncp.ipv6cp.throughput.OctetsIn); 570 nargv[arg] = substull(nargv[arg], "IPV6OCTETSOUT", 571 bundle->ncp.ipv6cp.throughput.OctetsOut); 572 nargv[arg] = substull(nargv[arg], "IPV6PACKETSIN", 573 bundle->ncp.ipv6cp.throughput.PacketsIn); 574 nargv[arg] = substull(nargv[arg], "IPV6PACKETSOUT", 575 bundle->ncp.ipv6cp.throughput.PacketsOut); 576 #endif 577 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle)); 578 nargv[arg] = substip(nargv[arg], "MYADDR", bundle->ncp.ipcp.my_ip); 579 #ifndef NOINET6 580 nargv[arg] = substipv6(nargv[arg], "MYADDR6", &bundle->ncp.ipv6cp.myaddr); 581 #ifndef NORADIUS 582 nargv[arg] = substipv6prefix(nargv[arg], "IPV6PREFIX", 583 bundle->radius.ipv6prefix); 584 #endif 585 #endif 586 nargv[arg] = substull(nargv[arg], "OCTETSIN", oin); 587 nargv[arg] = substull(nargv[arg], "OCTETSOUT", oout); 588 nargv[arg] = substull(nargv[arg], "PACKETSIN", pin); 589 nargv[arg] = substull(nargv[arg], "PACKETSOUT", pout); 590 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC", 591 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class, 592 bundle->ncp.mp.peer.enddisc.address, 593 bundle->ncp.mp.peer.enddisc.len)); 594 nargv[arg] = substlong(nargv[arg], "PROCESSID", pid); 595 if (server.cfg.port) 596 nargv[arg] = substlong(nargv[arg], "SOCKNAME", server.cfg.port); 597 else 598 nargv[arg] = subst(nargv[arg], "SOCKNAME", server.cfg.sockname); 599 nargv[arg] = subst(nargv[arg], "UPTIME", uptime); 600 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname); 601 nargv[arg] = subst(nargv[arg], "VERSION", Version); 602 } 603 nargv[arg] = NULL; 604 } 605 606 void 607 command_Free(int argc, char **argv) 608 { 609 while (argc) { 610 free(*argv); 611 argc--; 612 argv++; 613 } 614 } 615 616 static int 617 ShellCommand(struct cmdargs const *arg, int bg) 618 { 619 const char *shell; 620 pid_t shpid, pid; 621 622 #ifdef SHELL_ONLY_INTERACTIVELY 623 /* we're only allowed to shell when we run ppp interactively */ 624 if (arg->prompt && arg->prompt->owner) { 625 log_Printf(LogWARN, "Can't start a shell from a network connection\n"); 626 return 1; 627 } 628 #endif 629 630 if (arg->argc == arg->argn) { 631 if (!arg->prompt) { 632 log_Printf(LogWARN, "Can't start an interactive shell from" 633 " a config file\n"); 634 return 1; 635 } else if (arg->prompt->owner) { 636 log_Printf(LogWARN, "Can't start an interactive shell from" 637 " a socket connection\n"); 638 return 1; 639 } else if (bg) { 640 log_Printf(LogWARN, "Can only start an interactive shell in" 641 " the foreground mode\n"); 642 return 1; 643 } 644 } 645 646 pid = getpid(); 647 if ((shpid = fork()) == 0) { 648 int i, fd; 649 650 if ((shell = getenv("SHELL")) == 0) 651 shell = _PATH_BSHELL; 652 653 timer_TermService(); 654 655 if (arg->prompt) 656 fd = arg->prompt->fd_out; 657 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { 658 log_Printf(LogALERT, "Failed to open %s: %s\n", 659 _PATH_DEVNULL, strerror(errno)); 660 exit(1); 661 } 662 dup2(fd, STDIN_FILENO); 663 dup2(fd, STDOUT_FILENO); 664 dup2(fd, STDERR_FILENO); 665 for (i = getdtablesize(); i > STDERR_FILENO; i--) 666 fcntl(i, F_SETFD, 1); 667 668 #ifndef NOSUID 669 setuid(ID0realuid()); 670 #endif 671 if (arg->argc > arg->argn) { 672 /* substitute pseudo args */ 673 char *argv[MAXARGS]; 674 int argc = arg->argc - arg->argn; 675 676 if (argc >= sizeof argv / sizeof argv[0]) { 677 argc = sizeof argv / sizeof argv[0] - 1; 678 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc); 679 } 680 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid); 681 if (bg) { 682 pid_t p; 683 684 p = getpid(); 685 if (daemon(1, 1) == -1) { 686 log_Printf(LogERROR, "%ld: daemon: %s\n", (long)p, strerror(errno)); 687 exit(1); 688 } 689 } else if (arg->prompt) 690 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]); 691 execvp(argv[0], argv); 692 } else { 693 if (arg->prompt) 694 printf("ppp: Pausing until %s finishes\n", shell); 695 prompt_TtyOldMode(arg->prompt); 696 execl(shell, shell, (char *)NULL); 697 } 698 699 log_Printf(LogWARN, "exec() of %s failed: %s\n", 700 arg->argc > arg->argn ? arg->argv[arg->argn] : shell, 701 strerror(errno)); 702 _exit(255); 703 } 704 705 if (shpid == (pid_t)-1) 706 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno)); 707 else { 708 int status; 709 waitpid(shpid, &status, 0); 710 } 711 712 if (arg->prompt && !arg->prompt->owner) 713 prompt_TtyCommandMode(arg->prompt); 714 715 return 0; 716 } 717 718 static int 719 BgShellCommand(struct cmdargs const *arg) 720 { 721 if (arg->argc == arg->argn) 722 return -1; 723 return ShellCommand(arg, 1); 724 } 725 726 static int 727 FgShellCommand(struct cmdargs const *arg) 728 { 729 return ShellCommand(arg, 0); 730 } 731 732 static int 733 ResolvCommand(struct cmdargs const *arg) 734 { 735 if (arg->argc == arg->argn + 1) { 736 if (!strcasecmp(arg->argv[arg->argn], "reload")) 737 ipcp_LoadDNS(&arg->bundle->ncp.ipcp); 738 else if (!strcasecmp(arg->argv[arg->argn], "restore")) 739 ipcp_RestoreDNS(&arg->bundle->ncp.ipcp); 740 else if (!strcasecmp(arg->argv[arg->argn], "rewrite")) 741 ipcp_WriteDNS(&arg->bundle->ncp.ipcp); 742 else if (!strcasecmp(arg->argv[arg->argn], "readonly")) 743 arg->bundle->ncp.ipcp.ns.writable = 0; 744 else if (!strcasecmp(arg->argv[arg->argn], "writable")) 745 arg->bundle->ncp.ipcp.ns.writable = 1; 746 else 747 return -1; 748 749 return 0; 750 } 751 752 return -1; 753 } 754 755 #ifndef NONAT 756 static struct cmdtab const NatCommands[] = 757 { 758 {"addr", NULL, nat_RedirectAddr, LOCAL_AUTH, 759 "static address translation", "nat addr [addr_local addr_alias]"}, 760 {"deny_incoming", NULL, NatOption, LOCAL_AUTH, 761 "stop incoming connections", "nat deny_incoming yes|no", 762 (const void *) PKT_ALIAS_DENY_INCOMING}, 763 {"enable", NULL, NatEnable, LOCAL_AUTH, 764 "enable NAT", "nat enable yes|no"}, 765 {"log", NULL, NatOption, LOCAL_AUTH, 766 "log NAT link creation", "nat log yes|no", 767 (const void *) PKT_ALIAS_LOG}, 768 {"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection", 769 "nat port proto localaddr:port[-port] aliasport[-aliasport]"}, 770 {"proto", NULL, nat_RedirectProto, LOCAL_AUTH, "protocol redirection", 771 "nat proto proto localIP [publicIP [remoteIP]]"}, 772 {"proxy", NULL, nat_ProxyRule, LOCAL_AUTH, 773 "proxy control", "nat proxy server host[:port] ..."}, 774 #ifndef NO_FW_PUNCH 775 {"punch_fw", NULL, nat_PunchFW, LOCAL_AUTH, 776 "firewall control", "nat punch_fw [base count]"}, 777 #endif 778 {"skinny_port", NULL, nat_SkinnyPort, LOCAL_AUTH, 779 "TCP port used by Skinny Station protocol", "nat skinny_port [port]"}, 780 {"same_ports", NULL, NatOption, LOCAL_AUTH, 781 "try to leave port numbers unchanged", "nat same_ports yes|no", 782 (const void *) PKT_ALIAS_SAME_PORTS}, 783 {"target", NULL, nat_SetTarget, LOCAL_AUTH, 784 "Default address for incoming connections", "nat target addr" }, 785 {"unregistered_only", NULL, NatOption, LOCAL_AUTH, 786 "translate unregistered (private) IP address space only", 787 "nat unregistered_only yes|no", 788 (const void *) PKT_ALIAS_UNREGISTERED_ONLY}, 789 {"use_sockets", NULL, NatOption, LOCAL_AUTH, 790 "allocate host sockets", "nat use_sockets yes|no", 791 (const void *) PKT_ALIAS_USE_SOCKETS}, 792 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 793 "Display this message", "nat help|? [command]", NatCommands}, 794 {NULL, NULL, NULL}, 795 }; 796 #endif 797 798 static struct cmdtab const AllowCommands[] = { 799 {"modes", "mode", AllowModes, LOCAL_AUTH, 800 "Only allow certain ppp modes", "allow modes mode..."}, 801 {"users", "user", AllowUsers, LOCAL_AUTH, 802 "Only allow ppp access to certain users", "allow users logname..."}, 803 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 804 "Display this message", "allow help|? [command]", AllowCommands}, 805 {NULL, NULL, NULL}, 806 }; 807 808 static struct cmdtab const IfaceCommands[] = 809 { 810 {"add", NULL, IfaceAddCommand, LOCAL_AUTH, 811 "Add iface address", "iface add addr[/bits| mask] peer", NULL}, 812 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH, 813 "Add or change an iface address", "iface add! addr[/bits| mask] peer", 814 (void *)1}, 815 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH, 816 "Clear iface address(es)", "iface clear [INET | INET6]"}, 817 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH, 818 "Delete iface address", "iface delete addr", NULL}, 819 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH, 820 "Delete iface address", "iface delete addr", (void *)1}, 821 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH, 822 "Delete iface address", "iface delete addr", (void *)1}, 823 {"show", NULL, iface_Show, LOCAL_AUTH, 824 "Show iface address(es)", "iface show"}, 825 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 826 "Display this message", "nat help|? [command]", IfaceCommands}, 827 {NULL, NULL, NULL}, 828 }; 829 830 static struct cmdtab const Commands[] = { 831 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 832 "accept option request", "accept option .."}, 833 {"add", NULL, AddCommand, LOCAL_AUTH, 834 "add route", "add dest mask gateway", NULL}, 835 {NULL, "add!", AddCommand, LOCAL_AUTH, 836 "add or change route", "add! dest mask gateway", (void *)1}, 837 {"allow", "auth", RunListCommand, LOCAL_AUTH, 838 "Allow ppp access", "allow users|modes ....", AllowCommands}, 839 {"bg", "!bg", BgShellCommand, LOCAL_AUTH, 840 "Run a background command", "[!]bg command"}, 841 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT, 842 "Clear throughput statistics", 843 "clear ipcp|ipv6cp|physical [current|overall|peak]..."}, 844 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX, 845 "Clone a link", "clone newname..."}, 846 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT, 847 "Close an FSM", "close [lcp|ccp]"}, 848 {"delete", NULL, DeleteCommand, LOCAL_AUTH, 849 "delete route", "delete dest", NULL}, 850 {NULL, "delete!", DeleteCommand, LOCAL_AUTH, 851 "delete a route if it exists", "delete! dest", (void *)1}, 852 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 853 "Deny option request", "deny option .."}, 854 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT, 855 "Dial and login", "dial|call [system ...]", NULL}, 856 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 857 "Disable option", "disable option .."}, 858 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT, 859 "Generate a down event", "down [ccp|lcp]"}, 860 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 861 "Enable option", "enable option .."}, 862 {"ident", NULL, IdentCommand, LOCAL_AUTH | LOCAL_CX, 863 "Set the link identity", "ident text..."}, 864 {"iface", "interface", RunListCommand, LOCAL_AUTH, 865 "interface control", "iface option ...", IfaceCommands}, 866 {"link", "datalink", LinkCommand, LOCAL_AUTH, 867 "Link specific commands", "link name command ..."}, 868 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT, 869 "Load settings", "load [system ...]"}, 870 {"log", NULL, LogCommand, LOCAL_AUTH | LOCAL_CX_OPT, 871 "log information", "log word ..."}, 872 #ifndef NONAT 873 {"nat", "alias", RunListCommand, LOCAL_AUTH, 874 "NAT control", "nat option yes|no", NatCommands}, 875 #endif 876 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT, 877 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1}, 878 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH, 879 "Password for manipulation", "passwd LocalPassword"}, 880 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 881 "Quit PPP program", "quit|bye [all]"}, 882 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX, 883 "Remove a link", "remove"}, 884 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX, 885 "Rename a link", "rename name"}, 886 {"resolv", NULL, ResolvCommand, LOCAL_AUTH, 887 "Manipulate resolv.conf", "resolv readonly|reload|restore|rewrite|writable"}, 888 {"save", NULL, SaveCommand, LOCAL_AUTH, 889 "Save settings", "save"}, 890 {"sendident", NULL, SendIdentification, LOCAL_AUTH | LOCAL_CX, 891 "Transmit the link identity", "sendident"}, 892 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT, 893 "Set parameters", "set[up] var value"}, 894 {"shell", "!", FgShellCommand, LOCAL_AUTH, 895 "Run a subshell", "shell|! [sh command]"}, 896 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT, 897 "Show status and stats", "show var"}, 898 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX, 899 "Enter terminal mode", "term"}, 900 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 901 "Display this message", "help|? [command]", Commands}, 902 {NULL, NULL, NULL}, 903 }; 904 905 static int 906 ShowEscape(struct cmdargs const *arg) 907 { 908 if (arg->cx->physical->async.cfg.EscMap[32]) { 909 int code, bit; 910 const char *sep = ""; 911 912 for (code = 0; code < 32; code++) 913 if (arg->cx->physical->async.cfg.EscMap[code]) 914 for (bit = 0; bit < 8; bit++) 915 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) { 916 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit); 917 sep = ", "; 918 } 919 prompt_Printf(arg->prompt, "\n"); 920 } 921 return 0; 922 } 923 924 static int 925 ShowTimerList(struct cmdargs const *arg) 926 { 927 timer_Show(0, arg->prompt); 928 return 0; 929 } 930 931 static int 932 ShowStopped(struct cmdargs const *arg) 933 { 934 prompt_Printf(arg->prompt, " Stopped Timer: LCP: "); 935 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load) 936 prompt_Printf(arg->prompt, "Disabled"); 937 else 938 prompt_Printf(arg->prompt, "%ld secs", 939 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS); 940 941 prompt_Printf(arg->prompt, ", CCP: "); 942 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load) 943 prompt_Printf(arg->prompt, "Disabled"); 944 else 945 prompt_Printf(arg->prompt, "%ld secs", 946 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS); 947 948 prompt_Printf(arg->prompt, "\n"); 949 950 return 0; 951 } 952 953 static int 954 ShowVersion(struct cmdargs const *arg) 955 { 956 prompt_Printf(arg->prompt, "PPP Version %s - %s\n", Version, __DATE__); 957 return 0; 958 } 959 960 static int 961 ShowProtocolStats(struct cmdargs const *arg) 962 { 963 struct link *l = command_ChooseLink(arg); 964 965 prompt_Printf(arg->prompt, "%s:\n", l->name); 966 link_ReportProtocolStatus(l, arg->prompt); 967 return 0; 968 } 969 970 static struct cmdtab const ShowCommands[] = { 971 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH, 972 "bundle details", "show bundle"}, 973 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT, 974 "CCP status", "show cpp"}, 975 {"compress", NULL, sl_Show, LOCAL_AUTH, 976 "VJ compression stats", "show compress"}, 977 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX, 978 "escape characters", "show escape"}, 979 {"filter", NULL, filter_Show, LOCAL_AUTH, 980 "packet filters", "show filter [in|out|dial|alive]"}, 981 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX, 982 "HDLC errors", "show hdlc"}, 983 {"iface", "interface", iface_Show, LOCAL_AUTH, 984 "Interface status", "show iface"}, 985 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH, 986 "IPCP status", "show ipcp"}, 987 #ifndef NOINET6 988 {"ipv6cp", NULL, ipv6cp_Show, LOCAL_AUTH, 989 "IPV6CP status", "show ipv6cp"}, 990 #endif 991 {"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT, 992 "Protocol layers", "show layers"}, 993 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX, 994 "LCP status", "show lcp"}, 995 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX, 996 "(high-level) link info", "show link"}, 997 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH, 998 "available link names", "show links"}, 999 {"log", NULL, log_ShowLevel, LOCAL_AUTH, 1000 "log levels", "show log"}, 1001 {"mem", NULL, mbuf_Show, LOCAL_AUTH, 1002 "mbuf allocations", "show mem"}, 1003 {"ncp", NULL, ncp_Show, LOCAL_AUTH, 1004 "NCP status", "show ncp"}, 1005 {"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX, 1006 "(low-level) link info", "show physical"}, 1007 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH, 1008 "multilink setup", "show mp"}, 1009 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT, 1010 "protocol summary", "show proto"}, 1011 {"route", NULL, route_Show, LOCAL_AUTH, 1012 "routing table", "show route"}, 1013 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX, 1014 "STOPPED timeout", "show stopped"}, 1015 {"timers", NULL, ShowTimerList, LOCAL_AUTH, 1016 "alarm timers", "show timers"}, 1017 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 1018 "version string", "show version"}, 1019 {"who", NULL, log_ShowWho, LOCAL_AUTH, 1020 "client list", "show who"}, 1021 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 1022 "Display this message", "show help|? [command]", ShowCommands}, 1023 {NULL, NULL, NULL}, 1024 }; 1025 1026 static struct cmdtab const * 1027 FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch) 1028 { 1029 int nmatch; 1030 int len; 1031 struct cmdtab const *found; 1032 1033 found = NULL; 1034 len = strlen(str); 1035 nmatch = 0; 1036 while (cmds->func) { 1037 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) { 1038 if (cmds->name[len] == '\0') { 1039 *pmatch = 1; 1040 return cmds; 1041 } 1042 nmatch++; 1043 found = cmds; 1044 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) { 1045 if (cmds->alias[len] == '\0') { 1046 *pmatch = 1; 1047 return cmds; 1048 } 1049 nmatch++; 1050 found = cmds; 1051 } 1052 cmds++; 1053 } 1054 *pmatch = nmatch; 1055 return found; 1056 } 1057 1058 static const char * 1059 mkPrefix(int argc, char const *const *argv, char *tgt, int sz) 1060 { 1061 int f, tlen, len; 1062 1063 tlen = 0; 1064 for (f = 0; f < argc && tlen < sz - 2; f++) { 1065 if (f) 1066 tgt[tlen++] = ' '; 1067 len = strlen(argv[f]); 1068 if (len > sz - tlen - 1) 1069 len = sz - tlen - 1; 1070 strncpy(tgt+tlen, argv[f], len); 1071 tlen += len; 1072 } 1073 tgt[tlen] = '\0'; 1074 return tgt; 1075 } 1076 1077 static int 1078 FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn, 1079 char const *const *argv, struct prompt *prompt, struct datalink *cx) 1080 { 1081 struct cmdtab const *cmd; 1082 int val = 1; 1083 int nmatch; 1084 struct cmdargs arg; 1085 char prefix[100]; 1086 1087 cmd = FindCommand(cmds, argv[argn], &nmatch); 1088 if (nmatch > 1) 1089 log_Printf(LogWARN, "%s: Ambiguous command\n", 1090 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1091 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) { 1092 if ((cmd->lauth & LOCAL_CX) && !cx) 1093 /* We've got no context, but we require it */ 1094 cx = bundle2datalink(bundle, NULL); 1095 1096 if ((cmd->lauth & LOCAL_CX) && !cx) 1097 log_Printf(LogWARN, "%s: No context (use the `link' command)\n", 1098 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1099 else { 1100 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1101 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n", 1102 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name); 1103 cx = NULL; 1104 } 1105 arg.cmdtab = cmds; 1106 arg.cmd = cmd; 1107 arg.argc = argc; 1108 arg.argn = argn+1; 1109 arg.argv = argv; 1110 arg.bundle = bundle; 1111 arg.cx = cx; 1112 arg.prompt = prompt; 1113 val = (*cmd->func) (&arg); 1114 } 1115 } else 1116 log_Printf(LogWARN, "%s: Invalid command\n", 1117 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1118 1119 if (val == -1) 1120 log_Printf(LogWARN, "usage: %s\n", cmd->syntax); 1121 else if (val) 1122 log_Printf(LogWARN, "%s: Failed %d\n", 1123 mkPrefix(argn+1, argv, prefix, sizeof prefix), val); 1124 1125 return val; 1126 } 1127 1128 int 1129 command_Expand_Interpret(char *buff, int nb, char *argv[MAXARGS], int offset) 1130 { 1131 char buff2[LINE_LEN-offset]; 1132 1133 InterpretArg(buff, buff2); 1134 strncpy(buff, buff2, LINE_LEN - offset - 1); 1135 buff[LINE_LEN - offset - 1] = '\0'; 1136 1137 return command_Interpret(buff, nb, argv); 1138 } 1139 1140 int 1141 command_Interpret(char *buff, int nb, char *argv[MAXARGS]) 1142 { 1143 char *cp; 1144 1145 if (nb > 0) { 1146 cp = buff + strcspn(buff, "\r\n"); 1147 if (cp) 1148 *cp = '\0'; 1149 return MakeArgs(buff, argv, MAXARGS, PARSE_REDUCE); 1150 } 1151 return 0; 1152 } 1153 1154 static int 1155 arghidden(int argc, char const *const *argv, int n) 1156 { 1157 /* Is arg n of the given command to be hidden from the log ? */ 1158 1159 /* set authkey xxxxx */ 1160 /* set key xxxxx */ 1161 if (n == 2 && !strncasecmp(argv[0], "se", 2) && 1162 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2))) 1163 return 1; 1164 1165 /* passwd xxxxx */ 1166 if (n == 1 && !strncasecmp(argv[0], "p", 1)) 1167 return 1; 1168 1169 /* set server port xxxxx .... */ 1170 if (n == 3 && !strncasecmp(argv[0], "se", 2) && 1171 !strncasecmp(argv[1], "se", 2)) 1172 return 1; 1173 1174 return 0; 1175 } 1176 1177 void 1178 command_Run(struct bundle *bundle, int argc, char const *const *argv, 1179 struct prompt *prompt, const char *label, struct datalink *cx) 1180 { 1181 if (argc > 0) { 1182 if (log_IsKept(LogCOMMAND)) { 1183 char buf[LINE_LEN]; 1184 int f, n; 1185 1186 if (label) { 1187 strncpy(buf, label, sizeof buf - 3); 1188 buf[sizeof buf - 3] = '\0'; 1189 strcat(buf, ": "); 1190 n = strlen(buf); 1191 } else { 1192 *buf = '\0'; 1193 n = 0; 1194 } 1195 buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */ 1196 1197 for (f = 0; f < argc; f++) { 1198 if (n < sizeof buf - 1 && f) 1199 buf[n++] = ' '; 1200 if (arghidden(argc, argv, f)) 1201 strncpy(buf+n, "********", sizeof buf - n - 1); 1202 else 1203 strncpy(buf+n, argv[f], sizeof buf - n - 1); 1204 n += strlen(buf+n); 1205 } 1206 log_Printf(LogCOMMAND, "%s\n", buf); 1207 } 1208 FindExec(bundle, Commands, argc, 0, argv, prompt, cx); 1209 } 1210 } 1211 1212 int 1213 command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt, 1214 const char *label) 1215 { 1216 int argc; 1217 char *argv[MAXARGS]; 1218 1219 if ((argc = command_Expand_Interpret(buff, nb, argv, 0)) < 0) 1220 return 0; 1221 1222 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL); 1223 return 1; 1224 } 1225 1226 static int 1227 ShowCommand(struct cmdargs const *arg) 1228 { 1229 if (!arg->prompt) 1230 log_Printf(LogWARN, "show: Cannot show without a prompt\n"); 1231 else if (arg->argc > arg->argn) 1232 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv, 1233 arg->prompt, arg->cx); 1234 else 1235 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n"); 1236 1237 return 0; 1238 } 1239 1240 static int 1241 TerminalCommand(struct cmdargs const *arg) 1242 { 1243 if (!arg->prompt) { 1244 log_Printf(LogWARN, "term: Need a prompt\n"); 1245 return 1; 1246 } 1247 1248 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) { 1249 prompt_Printf(arg->prompt, "LCP state is [%s]\n", 1250 State2Nam(arg->cx->physical->link.lcp.fsm.state)); 1251 return 1; 1252 } 1253 1254 datalink_Up(arg->cx, 0, 0); 1255 prompt_TtyTermMode(arg->prompt, arg->cx); 1256 return 0; 1257 } 1258 1259 static int 1260 QuitCommand(struct cmdargs const *arg) 1261 { 1262 if (!arg->prompt || prompt_IsController(arg->prompt) || 1263 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") && 1264 (arg->prompt->auth & LOCAL_AUTH))) 1265 Cleanup(EX_NORMAL); 1266 if (arg->prompt) 1267 prompt_Destroy(arg->prompt, 1); 1268 1269 return 0; 1270 } 1271 1272 static int 1273 OpenCommand(struct cmdargs const *arg) 1274 { 1275 if (arg->argc == arg->argn) 1276 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 1277 else if (arg->argc == arg->argn + 1) { 1278 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1279 struct datalink *cx = arg->cx ? 1280 arg->cx : bundle2datalink(arg->bundle, NULL); 1281 if (cx) { 1282 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 1283 fsm_Reopen(&cx->physical->link.lcp.fsm); 1284 else 1285 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1); 1286 } else 1287 log_Printf(LogWARN, "open lcp: You must specify a link\n"); 1288 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1289 struct fsm *fp; 1290 1291 fp = &command_ChooseLink(arg)->ccp.fsm; 1292 if (fp->link->lcp.fsm.state != ST_OPENED) 1293 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n"); 1294 else if (fp->state == ST_OPENED) 1295 fsm_Reopen(fp); 1296 else { 1297 fp->open_mode = 0; /* Not passive any more */ 1298 if (fp->state == ST_STOPPED) { 1299 fsm_Down(fp); 1300 fsm_Up(fp); 1301 } else { 1302 fsm_Up(fp); 1303 fsm_Open(fp); 1304 } 1305 } 1306 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) { 1307 if (arg->cx) 1308 log_Printf(LogWARN, "open ipcp: You need not specify a link\n"); 1309 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 1310 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm); 1311 else 1312 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1); 1313 } else 1314 return -1; 1315 } else 1316 return -1; 1317 1318 return 0; 1319 } 1320 1321 static int 1322 CloseCommand(struct cmdargs const *arg) 1323 { 1324 if (arg->argc == arg->argn) 1325 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN); 1326 else if (arg->argc == arg->argn + 1) { 1327 if (!strcasecmp(arg->argv[arg->argn], "lcp")) 1328 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP); 1329 else if (!strcasecmp(arg->argv[arg->argn], "ccp") || 1330 !strcasecmp(arg->argv[arg->argn], "ccp!")) { 1331 struct fsm *fp; 1332 1333 fp = &command_ChooseLink(arg)->ccp.fsm; 1334 if (fp->state == ST_OPENED) { 1335 fsm_Close(fp); 1336 if (arg->argv[arg->argn][3] == '!') 1337 fp->open_mode = 0; /* Stay ST_CLOSED */ 1338 else 1339 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */ 1340 } 1341 } else 1342 return -1; 1343 } else 1344 return -1; 1345 1346 return 0; 1347 } 1348 1349 static int 1350 DownCommand(struct cmdargs const *arg) 1351 { 1352 if (arg->argc == arg->argn) { 1353 if (arg->cx) 1354 datalink_Down(arg->cx, CLOSE_STAYDOWN); 1355 else 1356 bundle_Down(arg->bundle, CLOSE_STAYDOWN); 1357 } else if (arg->argc == arg->argn + 1) { 1358 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1359 if (arg->cx) 1360 datalink_Down(arg->cx, CLOSE_LCP); 1361 else 1362 bundle_Down(arg->bundle, CLOSE_LCP); 1363 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1364 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm : 1365 &arg->bundle->ncp.mp.link.ccp.fsm; 1366 fsm2initial(fp); 1367 } else 1368 return -1; 1369 } else 1370 return -1; 1371 1372 return 0; 1373 } 1374 1375 static int 1376 SetModemSpeed(struct cmdargs const *arg) 1377 { 1378 long speed; 1379 char *end; 1380 1381 if (arg->argc > arg->argn && *arg->argv[arg->argn]) { 1382 if (arg->argc > arg->argn+1) { 1383 log_Printf(LogWARN, "SetModemSpeed: Too many arguments\n"); 1384 return -1; 1385 } 1386 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) { 1387 physical_SetSync(arg->cx->physical); 1388 return 0; 1389 } 1390 end = NULL; 1391 speed = strtol(arg->argv[arg->argn], &end, 10); 1392 if (*end) { 1393 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", 1394 arg->argv[arg->argn]); 1395 return -1; 1396 } 1397 if (physical_SetSpeed(arg->cx->physical, speed)) 1398 return 0; 1399 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]); 1400 } else 1401 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n"); 1402 1403 return -1; 1404 } 1405 1406 static int 1407 SetStoppedTimeout(struct cmdargs const *arg) 1408 { 1409 struct link *l = &arg->cx->physical->link; 1410 1411 l->lcp.fsm.StoppedTimer.load = 0; 1412 l->ccp.fsm.StoppedTimer.load = 0; 1413 if (arg->argc <= arg->argn+2) { 1414 if (arg->argc > arg->argn) { 1415 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS; 1416 if (arg->argc > arg->argn+1) 1417 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS; 1418 } 1419 return 0; 1420 } 1421 return -1; 1422 } 1423 1424 static int 1425 SetServer(struct cmdargs const *arg) 1426 { 1427 int res = -1; 1428 1429 if (arg->argc > arg->argn && arg->argc < arg->argn+4) { 1430 const char *port, *passwd, *mask; 1431 int mlen; 1432 1433 /* What's what ? */ 1434 port = arg->argv[arg->argn]; 1435 if (arg->argc == arg->argn + 2) { 1436 passwd = arg->argv[arg->argn+1]; 1437 mask = NULL; 1438 } else if (arg->argc == arg->argn + 3) { 1439 passwd = arg->argv[arg->argn+1]; 1440 mask = arg->argv[arg->argn+2]; 1441 mlen = strlen(mask); 1442 if (mlen == 0 || mlen > 4 || strspn(mask, "01234567") != mlen || 1443 (mlen == 4 && *mask != '0')) { 1444 log_Printf(LogWARN, "%s %s: %s: Invalid mask\n", 1445 arg->argv[arg->argn - 2], arg->argv[arg->argn - 1], mask); 1446 return -1; 1447 } 1448 } else if (arg->argc != arg->argn + 1) 1449 return -1; 1450 else if (strcasecmp(port, "none") == 0) { 1451 if (server_Clear(arg->bundle)) 1452 log_Printf(LogPHASE, "Disabled server socket\n"); 1453 return 0; 1454 } else if (strcasecmp(port, "open") == 0) { 1455 switch (server_Reopen(arg->bundle)) { 1456 case SERVER_OK: 1457 return 0; 1458 case SERVER_FAILED: 1459 log_Printf(LogWARN, "Failed to reopen server port\n"); 1460 return 1; 1461 case SERVER_UNSET: 1462 log_Printf(LogWARN, "Cannot reopen unset server socket\n"); 1463 return 1; 1464 default: 1465 break; 1466 } 1467 return -1; 1468 } else if (strcasecmp(port, "closed") == 0) { 1469 if (server_Close(arg->bundle)) 1470 log_Printf(LogPHASE, "Closed server socket\n"); 1471 else 1472 log_Printf(LogWARN, "Server socket not open\n"); 1473 1474 return 0; 1475 } else 1476 return -1; 1477 1478 strncpy(server.cfg.passwd, passwd, sizeof server.cfg.passwd - 1); 1479 server.cfg.passwd[sizeof server.cfg.passwd - 1] = '\0'; 1480 1481 if (*port == '/') { 1482 mode_t imask; 1483 char *ptr, name[LINE_LEN + 12]; 1484 1485 if (mask == NULL) 1486 imask = (mode_t)-1; 1487 else for (imask = mlen = 0; mask[mlen]; mlen++) 1488 imask = (imask * 8) + mask[mlen] - '0'; 1489 1490 ptr = strstr(port, "%d"); 1491 if (ptr) { 1492 snprintf(name, sizeof name, "%.*s%d%s", 1493 (int)(ptr - port), port, arg->bundle->unit, ptr + 2); 1494 port = name; 1495 } 1496 res = server_LocalOpen(arg->bundle, port, imask); 1497 } else { 1498 int iport, add = 0; 1499 1500 if (mask != NULL) 1501 return -1; 1502 1503 if (*port == '+') { 1504 port++; 1505 add = 1; 1506 } 1507 if (strspn(port, "0123456789") != strlen(port)) { 1508 struct servent *s; 1509 1510 if ((s = getservbyname(port, "tcp")) == NULL) { 1511 iport = 0; 1512 log_Printf(LogWARN, "%s: Invalid port or service\n", port); 1513 } else 1514 iport = ntohs(s->s_port); 1515 } else 1516 iport = atoi(port); 1517 1518 if (iport) { 1519 if (add) 1520 iport += arg->bundle->unit; 1521 res = server_TcpOpen(arg->bundle, iport); 1522 } else 1523 res = -1; 1524 } 1525 } 1526 1527 return res; 1528 } 1529 1530 static int 1531 SetEscape(struct cmdargs const *arg) 1532 { 1533 int code; 1534 int argc = arg->argc - arg->argn; 1535 char const *const *argv = arg->argv + arg->argn; 1536 1537 for (code = 0; code < 33; code++) 1538 arg->cx->physical->async.cfg.EscMap[code] = 0; 1539 1540 while (argc-- > 0) { 1541 sscanf(*argv++, "%x", &code); 1542 code &= 0xff; 1543 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7)); 1544 arg->cx->physical->async.cfg.EscMap[32] = 1; 1545 } 1546 return 0; 1547 } 1548 1549 static int 1550 SetInterfaceAddr(struct cmdargs const *arg) 1551 { 1552 struct ncp *ncp = &arg->bundle->ncp; 1553 struct ncpaddr ncpaddr; 1554 const char *hisaddr; 1555 1556 if (arg->argc > arg->argn + 4) 1557 return -1; 1558 1559 hisaddr = NULL; 1560 memset(&ncp->ipcp.cfg.my_range, '\0', sizeof ncp->ipcp.cfg.my_range); 1561 memset(&ncp->ipcp.cfg.peer_range, '\0', sizeof ncp->ipcp.cfg.peer_range); 1562 ncp->ipcp.cfg.HaveTriggerAddress = 0; 1563 ncp->ipcp.cfg.netmask.s_addr = INADDR_ANY; 1564 iplist_reset(&ncp->ipcp.cfg.peer_list); 1565 1566 if (arg->argc > arg->argn) { 1567 if (!ncprange_aton(&ncp->ipcp.cfg.my_range, ncp, arg->argv[arg->argn])) 1568 return 1; 1569 if (arg->argc > arg->argn+1) { 1570 hisaddr = arg->argv[arg->argn+1]; 1571 if (arg->argc > arg->argn+2) { 1572 ncp->ipcp.ifmask = ncp->ipcp.cfg.netmask = 1573 GetIpAddr(arg->argv[arg->argn+2]); 1574 if (arg->argc > arg->argn+3) { 1575 ncp->ipcp.cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]); 1576 ncp->ipcp.cfg.HaveTriggerAddress = 1; 1577 } 1578 } 1579 } 1580 } 1581 1582 /* 0.0.0.0 means any address (0 bits) */ 1583 ncprange_getaddr(&ncp->ipcp.cfg.my_range, &ncpaddr); 1584 ncpaddr_getip4(&ncpaddr, &ncp->ipcp.my_ip); 1585 if (ncp->ipcp.my_ip.s_addr == INADDR_ANY) 1586 ncprange_setwidth(&ncp->ipcp.cfg.my_range, 0); 1587 bundle_AdjustFilters(arg->bundle, &ncpaddr, NULL); 1588 1589 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr, 1590 arg->bundle->phys_type.all & PHYS_AUTO)) 1591 return 4; 1592 1593 return 0; 1594 } 1595 1596 static int 1597 SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq, 1598 u_int *maxtrm, int def) 1599 { 1600 if (argc == 0) { 1601 *timeout = DEF_FSMRETRY; 1602 *maxreq = def; 1603 if (maxtrm != NULL) 1604 *maxtrm = def; 1605 } else { 1606 long l = atol(argv[0]); 1607 1608 if (l < MIN_FSMRETRY) { 1609 log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n", 1610 l, MIN_FSMRETRY); 1611 return 1; 1612 } else 1613 *timeout = l; 1614 1615 if (argc > 1) { 1616 l = atol(argv[1]); 1617 if (l < 1) { 1618 log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l); 1619 l = 1; 1620 } 1621 *maxreq = l; 1622 1623 if (argc > 2 && maxtrm != NULL) { 1624 l = atol(argv[2]); 1625 if (l < 1) { 1626 log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l); 1627 l = 1; 1628 } 1629 *maxtrm = l; 1630 } 1631 } 1632 } 1633 1634 return 0; 1635 } 1636 1637 static int 1638 SetVariable(struct cmdargs const *arg) 1639 { 1640 long long_val, param = (long)arg->cmd->args; 1641 int mode, dummyint, f, first, res; 1642 u_short *change; 1643 const char *argp; 1644 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 1645 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 1646 struct in_addr *ipaddr; 1647 struct ncpaddr ncpaddr[2]; 1648 1649 if (arg->argc > arg->argn) 1650 argp = arg->argv[arg->argn]; 1651 else 1652 argp = ""; 1653 1654 res = 0; 1655 1656 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 1657 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n", 1658 arg->cmd->name); 1659 return 1; 1660 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1661 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n", 1662 arg->cmd->name, cx->name); 1663 cx = NULL; 1664 } 1665 1666 switch (param) { 1667 case VAR_AUTHKEY: 1668 strncpy(arg->bundle->cfg.auth.key, argp, 1669 sizeof arg->bundle->cfg.auth.key - 1); 1670 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0'; 1671 break; 1672 1673 case VAR_AUTHNAME: 1674 switch (bundle_Phase(arg->bundle)) { 1675 default: 1676 log_Printf(LogWARN, "Altering authname while at phase %s\n", 1677 bundle_PhaseName(arg->bundle)); 1678 /* drop through */ 1679 case PHASE_DEAD: 1680 case PHASE_ESTABLISH: 1681 strncpy(arg->bundle->cfg.auth.name, argp, 1682 sizeof arg->bundle->cfg.auth.name - 1); 1683 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0'; 1684 break; 1685 } 1686 break; 1687 1688 case VAR_AUTOLOAD: 1689 if (arg->argc == arg->argn + 3) { 1690 int v1, v2, v3; 1691 char *end; 1692 1693 v1 = strtol(arg->argv[arg->argn], &end, 0); 1694 if (v1 < 0 || *end) { 1695 log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n", 1696 arg->argv[arg->argn]); 1697 res = 1; 1698 break; 1699 } 1700 1701 v2 = strtol(arg->argv[arg->argn + 1], &end, 0); 1702 if (v2 < 0 || *end) { 1703 log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n", 1704 arg->argv[arg->argn + 1]); 1705 res = 1; 1706 break; 1707 } 1708 if (v2 < v1) { 1709 v3 = v1; 1710 v1 = v2; 1711 v2 = v3; 1712 } 1713 1714 v3 = strtol(arg->argv[arg->argn + 2], &end, 0); 1715 if (v3 <= 0 || *end) { 1716 log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n", 1717 arg->argv[arg->argn + 2]); 1718 res = 1; 1719 break; 1720 } 1721 1722 arg->bundle->ncp.mp.cfg.autoload.min = v1; 1723 arg->bundle->ncp.mp.cfg.autoload.max = v2; 1724 arg->bundle->ncp.mp.cfg.autoload.period = v3; 1725 mp_RestartAutoloadTimer(&arg->bundle->ncp.mp); 1726 } else { 1727 log_Printf(LogWARN, "Set autoload requires three arguments\n"); 1728 res = 1; 1729 } 1730 break; 1731 1732 case VAR_DIAL: 1733 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1); 1734 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0'; 1735 break; 1736 1737 case VAR_LOGIN: 1738 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1); 1739 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0'; 1740 break; 1741 1742 case VAR_WINSIZE: 1743 if (arg->argc > arg->argn) { 1744 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]); 1745 if (l->ccp.cfg.deflate.out.winsize < 8 || 1746 l->ccp.cfg.deflate.out.winsize > 15) { 1747 log_Printf(LogWARN, "%d: Invalid outgoing window size\n", 1748 l->ccp.cfg.deflate.out.winsize); 1749 l->ccp.cfg.deflate.out.winsize = 15; 1750 } 1751 if (arg->argc > arg->argn+1) { 1752 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]); 1753 if (l->ccp.cfg.deflate.in.winsize < 8 || 1754 l->ccp.cfg.deflate.in.winsize > 15) { 1755 log_Printf(LogWARN, "%d: Invalid incoming window size\n", 1756 l->ccp.cfg.deflate.in.winsize); 1757 l->ccp.cfg.deflate.in.winsize = 15; 1758 } 1759 } else 1760 l->ccp.cfg.deflate.in.winsize = 0; 1761 } else { 1762 log_Printf(LogWARN, "No window size specified\n"); 1763 res = 1; 1764 } 1765 break; 1766 1767 #ifndef NODES 1768 case VAR_MPPE: 1769 if (arg->argc > arg->argn + 2) { 1770 res = -1; 1771 break; 1772 } 1773 1774 if (arg->argc == arg->argn) { 1775 l->ccp.cfg.mppe.keybits = 0; 1776 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1777 l->ccp.cfg.mppe.required = 0; 1778 break; 1779 } 1780 1781 if (!strcmp(argp, "*")) 1782 long_val = 0; 1783 else { 1784 long_val = atol(argp); 1785 if (long_val != 40 && long_val != 56 && long_val != 128) { 1786 log_Printf(LogWARN, "%s: Invalid bits value\n", argp); 1787 res = -1; 1788 break; 1789 } 1790 } 1791 1792 if (arg->argc == arg->argn + 2) { 1793 if (!strcmp(arg->argv[arg->argn + 1], "*")) 1794 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1795 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateless")) 1796 l->ccp.cfg.mppe.state = MPPE_STATELESS; 1797 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateful")) 1798 l->ccp.cfg.mppe.state = MPPE_STATEFUL; 1799 else { 1800 log_Printf(LogWARN, "%s: Invalid state value\n", 1801 arg->argv[arg->argn + 1]); 1802 res = -1; 1803 break; 1804 } 1805 } else 1806 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1807 l->ccp.cfg.mppe.keybits = long_val; 1808 l->ccp.cfg.mppe.required = 1; 1809 break; 1810 #endif 1811 1812 case VAR_DEVICE: 1813 physical_SetDeviceList(cx->physical, arg->argc - arg->argn, 1814 arg->argv + arg->argn); 1815 break; 1816 1817 case VAR_ACCMAP: 1818 if (arg->argc > arg->argn) { 1819 u_long ulong_val; 1820 sscanf(argp, "%lx", &ulong_val); 1821 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val; 1822 } else { 1823 log_Printf(LogWARN, "No accmap specified\n"); 1824 res = 1; 1825 } 1826 break; 1827 1828 case VAR_MODE: 1829 mode = Nam2mode(argp); 1830 if (mode == PHYS_NONE || mode == PHYS_ALL) { 1831 log_Printf(LogWARN, "%s: Invalid mode\n", argp); 1832 res = -1; 1833 break; 1834 } 1835 bundle_SetMode(arg->bundle, cx, mode); 1836 break; 1837 1838 case VAR_MRRU: 1839 switch (bundle_Phase(arg->bundle)) { 1840 case PHASE_DEAD: 1841 break; 1842 case PHASE_ESTABLISH: 1843 /* Make sure none of our links are DATALINK_LCP or greater */ 1844 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 1845 log_Printf(LogWARN, "mrru: Only changable before LCP negotiations\n"); 1846 res = 1; 1847 break; 1848 } 1849 break; 1850 default: 1851 log_Printf(LogWARN, "mrru: Only changable at phase DEAD/ESTABLISH\n"); 1852 res = 1; 1853 break; 1854 } 1855 if (res != 0) 1856 break; 1857 long_val = atol(argp); 1858 if (long_val && long_val < MIN_MRU) { 1859 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU); 1860 res = 1; 1861 break; 1862 } else if (long_val > MAX_MRU) { 1863 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU); 1864 res = 1; 1865 break; 1866 } else 1867 arg->bundle->ncp.mp.cfg.mrru = long_val; 1868 break; 1869 1870 case VAR_MRU: 1871 long_val = 0; /* silence gcc */ 1872 change = NULL; /* silence gcc */ 1873 switch(arg->argc - arg->argn) { 1874 case 1: 1875 if (argp[strspn(argp, "0123456789")] != '\0') { 1876 res = -1; 1877 break; 1878 } 1879 /*FALLTHRU*/ 1880 case 0: 1881 long_val = atol(argp); 1882 change = &l->lcp.cfg.mru; 1883 if (long_val > l->lcp.cfg.max_mru) { 1884 log_Printf(LogWARN, "MRU %ld: too large - max set to %d\n", long_val, 1885 l->lcp.cfg.max_mru); 1886 res = 1; 1887 break; 1888 } 1889 break; 1890 case 2: 1891 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1892 res = -1; 1893 break; 1894 } 1895 long_val = atol(arg->argv[arg->argn + 1]); 1896 change = &l->lcp.cfg.max_mru; 1897 if (long_val > MAX_MRU) { 1898 log_Printf(LogWARN, "MRU %ld: too large - maximum is %d\n", long_val, 1899 MAX_MRU); 1900 res = 1; 1901 break; 1902 } 1903 break; 1904 default: 1905 res = -1; 1906 break; 1907 } 1908 if (res != 0) 1909 break; 1910 1911 if (long_val == 0) 1912 *change = 0; 1913 else if (long_val < MIN_MRU) { 1914 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU); 1915 res = 1; 1916 break; 1917 } else if (long_val > MAX_MRU) { 1918 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU); 1919 res = 1; 1920 break; 1921 } else 1922 *change = long_val; 1923 if (l->lcp.cfg.mru > *change) 1924 l->lcp.cfg.mru = *change; 1925 break; 1926 1927 case VAR_MTU: 1928 long_val = 0; /* silence gcc */ 1929 change = NULL; /* silence gcc */ 1930 switch(arg->argc - arg->argn) { 1931 case 1: 1932 if (argp[strspn(argp, "0123456789")] != '\0') { 1933 res = -1; 1934 break; 1935 } 1936 /*FALLTHRU*/ 1937 case 0: 1938 long_val = atol(argp); 1939 change = &l->lcp.cfg.mtu; 1940 if (long_val > l->lcp.cfg.max_mtu) { 1941 log_Printf(LogWARN, "MTU %ld: too large - max set to %d\n", long_val, 1942 l->lcp.cfg.max_mtu); 1943 res = 1; 1944 break; 1945 } 1946 break; 1947 case 2: 1948 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1949 res = -1; 1950 break; 1951 } 1952 long_val = atol(arg->argv[arg->argn + 1]); 1953 change = &l->lcp.cfg.max_mtu; 1954 if (long_val > MAX_MTU) { 1955 log_Printf(LogWARN, "MTU %ld: too large - maximum is %d\n", long_val, 1956 MAX_MTU); 1957 res = 1; 1958 break; 1959 } 1960 break; 1961 default: 1962 res = -1; 1963 break; 1964 } 1965 1966 if (res != 0) 1967 break; 1968 1969 if (long_val && long_val < MIN_MTU) { 1970 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU); 1971 res = 1; 1972 break; 1973 } else if (long_val > MAX_MTU) { 1974 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU); 1975 res = 1; 1976 break; 1977 } else 1978 *change = long_val; 1979 if (l->lcp.cfg.mtu > *change) 1980 l->lcp.cfg.mtu = *change; 1981 break; 1982 1983 case VAR_OPENMODE: 1984 if (strcasecmp(argp, "active") == 0) 1985 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ? 1986 atoi(arg->argv[arg->argn+1]) : 1; 1987 else if (strcasecmp(argp, "passive") == 0) 1988 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE; 1989 else { 1990 log_Printf(LogWARN, "%s: Invalid openmode\n", argp); 1991 res = 1; 1992 } 1993 break; 1994 1995 case VAR_PHONE: 1996 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1); 1997 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0'; 1998 cx->phone.alt = cx->phone.next = NULL; 1999 break; 2000 2001 case VAR_HANGUP: 2002 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1); 2003 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0'; 2004 break; 2005 2006 case VAR_IFQUEUE: 2007 long_val = atol(argp); 2008 arg->bundle->cfg.ifqueue = long_val < 0 ? 0 : long_val; 2009 break; 2010 2011 case VAR_LOGOUT: 2012 strncpy(cx->cfg.script.logout, argp, sizeof cx->cfg.script.logout - 1); 2013 cx->cfg.script.logout[sizeof cx->cfg.script.logout - 1] = '\0'; 2014 break; 2015 2016 case VAR_IDLETIMEOUT: 2017 if (arg->argc > arg->argn+2) { 2018 log_Printf(LogWARN, "Too many idle timeout values\n"); 2019 res = 1; 2020 } else if (arg->argc == arg->argn) { 2021 log_Printf(LogWARN, "Too few idle timeout values\n"); 2022 res = 1; 2023 } else { 2024 int timeout, min; 2025 2026 timeout = atoi(argp); 2027 min = arg->argc == arg->argn + 2 ? atoi(arg->argv[arg->argn + 1]) : -1; 2028 bundle_SetIdleTimer(arg->bundle, timeout, min); 2029 } 2030 break; 2031 2032 #ifndef NORADIUS 2033 case VAR_RAD_ALIVE: 2034 if (arg->argc > arg->argn + 2) { 2035 log_Printf(LogWARN, "Too many RADIUS alive interval values\n"); 2036 res = 1; 2037 } else if (arg->argc == arg->argn) { 2038 log_Printf(LogWARN, "Too few RADIUS alive interval values\n"); 2039 res = 1; 2040 } else { 2041 arg->bundle->radius.alive.interval = atoi(argp); 2042 if (arg->bundle->radius.alive.interval && !arg->bundle->radius.cfg.file) { 2043 log_Printf(LogWARN, "rad_alive requires radius to be configured\n"); 2044 res = 1; 2045 } else if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) { 2046 if (arg->bundle->radius.alive.interval) 2047 radius_StartTimer(arg->bundle); 2048 else 2049 radius_StopTimer(&arg->bundle->radius); 2050 } 2051 } 2052 break; 2053 #endif 2054 2055 case VAR_LQRPERIOD: 2056 long_val = atol(argp); 2057 if (long_val < MIN_LQRPERIOD) { 2058 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n", 2059 long_val, MIN_LQRPERIOD); 2060 res = 1; 2061 } else 2062 l->lcp.cfg.lqrperiod = long_val; 2063 break; 2064 2065 case VAR_LCPRETRY: 2066 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2067 &cx->physical->link.lcp.cfg.fsm.timeout, 2068 &cx->physical->link.lcp.cfg.fsm.maxreq, 2069 &cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2070 break; 2071 2072 case VAR_CHAPRETRY: 2073 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2074 &cx->chap.auth.cfg.fsm.timeout, 2075 &cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES); 2076 break; 2077 2078 case VAR_PAPRETRY: 2079 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2080 &cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq, 2081 NULL, DEF_FSMAUTHTRIES); 2082 break; 2083 2084 case VAR_CCPRETRY: 2085 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2086 &l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq, 2087 &l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2088 break; 2089 2090 case VAR_IPCPRETRY: 2091 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2092 &arg->bundle->ncp.ipcp.cfg.fsm.timeout, 2093 &arg->bundle->ncp.ipcp.cfg.fsm.maxreq, 2094 &arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2095 break; 2096 2097 #ifndef NOINET6 2098 case VAR_IPV6CPRETRY: 2099 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2100 &arg->bundle->ncp.ipv6cp.cfg.fsm.timeout, 2101 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxreq, 2102 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2103 break; 2104 #endif 2105 2106 case VAR_NBNS: 2107 case VAR_DNS: 2108 if (param == VAR_DNS) { 2109 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.dns; 2110 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_NONE; 2111 } else { 2112 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.nbns; 2113 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_ANY; 2114 } 2115 2116 if (arg->argc > arg->argn) { 2117 ncpaddr_aton(ncpaddr, &arg->bundle->ncp, arg->argv[arg->argn]); 2118 if (!ncpaddr_getip4(ncpaddr, ipaddr)) 2119 return -1; 2120 if (arg->argc > arg->argn+1) { 2121 ncpaddr_aton(ncpaddr + 1, &arg->bundle->ncp, arg->argv[arg->argn + 1]); 2122 if (!ncpaddr_getip4(ncpaddr + 1, ipaddr + 1)) 2123 return -1; 2124 } 2125 2126 if (ipaddr[0].s_addr == INADDR_ANY) { 2127 ipaddr[0] = ipaddr[1]; 2128 ipaddr[1].s_addr = INADDR_ANY; 2129 } 2130 if (ipaddr[0].s_addr == INADDR_NONE) { 2131 ipaddr[0] = ipaddr[1]; 2132 ipaddr[1].s_addr = INADDR_NONE; 2133 } 2134 } 2135 break; 2136 2137 case VAR_CALLBACK: 2138 cx->cfg.callback.opmask = 0; 2139 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) { 2140 if (!strcasecmp(arg->argv[dummyint], "auth")) 2141 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH); 2142 else if (!strcasecmp(arg->argv[dummyint], "cbcp")) 2143 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP); 2144 else if (!strcasecmp(arg->argv[dummyint], "e.164")) { 2145 if (dummyint == arg->argc - 1) 2146 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n"); 2147 else { 2148 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164); 2149 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint], 2150 sizeof cx->cfg.callback.msg - 1); 2151 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0'; 2152 } 2153 } else if (!strcasecmp(arg->argv[dummyint], "none")) 2154 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE); 2155 else { 2156 res = -1; 2157 break; 2158 } 2159 } 2160 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE)) 2161 cx->cfg.callback.opmask = 0; 2162 break; 2163 2164 case VAR_CBCP: 2165 cx->cfg.cbcp.delay = 0; 2166 *cx->cfg.cbcp.phone = '\0'; 2167 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY; 2168 if (arg->argc > arg->argn) { 2169 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn], 2170 sizeof cx->cfg.cbcp.phone - 1); 2171 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0'; 2172 if (arg->argc > arg->argn + 1) { 2173 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]); 2174 if (arg->argc > arg->argn + 2) { 2175 long_val = atol(arg->argv[arg->argn + 2]); 2176 if (long_val < MIN_FSMRETRY) 2177 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n", 2178 long_val, MIN_FSMRETRY); 2179 else 2180 cx->cfg.cbcp.fsmretry = long_val; 2181 } 2182 } 2183 } 2184 break; 2185 2186 case VAR_CHOKED: 2187 arg->bundle->cfg.choked.timeout = atoi(argp); 2188 if (arg->bundle->cfg.choked.timeout <= 0) 2189 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT; 2190 break; 2191 2192 case VAR_SENDPIPE: 2193 long_val = atol(argp); 2194 arg->bundle->ncp.cfg.sendpipe = long_val; 2195 break; 2196 2197 case VAR_RECVPIPE: 2198 long_val = atol(argp); 2199 arg->bundle->ncp.cfg.recvpipe = long_val; 2200 break; 2201 2202 #ifndef NORADIUS 2203 case VAR_RADIUS: 2204 if (!*argp) 2205 *arg->bundle->radius.cfg.file = '\0'; 2206 else if (access(argp, R_OK)) { 2207 log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno)); 2208 res = 1; 2209 break; 2210 } else { 2211 strncpy(arg->bundle->radius.cfg.file, argp, 2212 sizeof arg->bundle->radius.cfg.file - 1); 2213 arg->bundle->radius.cfg.file 2214 [sizeof arg->bundle->radius.cfg.file - 1] = '\0'; 2215 } 2216 break; 2217 #endif 2218 2219 case VAR_CD: 2220 if (*argp) { 2221 if (strcasecmp(argp, "off")) { 2222 long_val = atol(argp); 2223 if (long_val < 0) 2224 long_val = 0; 2225 cx->physical->cfg.cd.delay = long_val; 2226 cx->physical->cfg.cd.necessity = argp[strlen(argp)-1] == '!' ? 2227 CD_REQUIRED : CD_VARIABLE; 2228 } else 2229 cx->physical->cfg.cd.necessity = CD_NOTREQUIRED; 2230 } else { 2231 cx->physical->cfg.cd.delay = 0; 2232 cx->physical->cfg.cd.necessity = CD_DEFAULT; 2233 } 2234 break; 2235 2236 case VAR_PARITY: 2237 if (arg->argc == arg->argn + 1) 2238 res = physical_SetParity(arg->cx->physical, argp); 2239 else { 2240 log_Printf(LogWARN, "Parity value must be odd, even or none\n"); 2241 res = 1; 2242 } 2243 break; 2244 2245 case VAR_CRTSCTS: 2246 if (strcasecmp(argp, "on") == 0) 2247 physical_SetRtsCts(arg->cx->physical, 1); 2248 else if (strcasecmp(argp, "off") == 0) 2249 physical_SetRtsCts(arg->cx->physical, 0); 2250 else { 2251 log_Printf(LogWARN, "RTS/CTS value must be on or off\n"); 2252 res = 1; 2253 } 2254 break; 2255 2256 case VAR_URGENTPORTS: 2257 if (arg->argn == arg->argc) { 2258 ncp_SetUrgentTOS(&arg->bundle->ncp); 2259 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2260 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2261 } else if (!strcasecmp(arg->argv[arg->argn], "udp")) { 2262 ncp_SetUrgentTOS(&arg->bundle->ncp); 2263 if (arg->argn == arg->argc - 1) 2264 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2265 else for (f = arg->argn + 1; f < arg->argc; f++) 2266 if (*arg->argv[f] == '+') 2267 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2268 else if (*arg->argv[f] == '-') 2269 ncp_RemoveUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2270 else { 2271 if (f == arg->argn) 2272 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2273 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2274 } 2275 } else if (arg->argn == arg->argc - 1 && 2276 !strcasecmp(arg->argv[arg->argn], "none")) { 2277 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2278 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2279 ncp_ClearUrgentTOS(&arg->bundle->ncp); 2280 } else { 2281 ncp_SetUrgentTOS(&arg->bundle->ncp); 2282 first = arg->argn; 2283 if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc) 2284 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2285 2286 for (f = first; f < arg->argc; f++) 2287 if (*arg->argv[f] == '+') 2288 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2289 else if (*arg->argv[f] == '-') 2290 ncp_RemoveUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2291 else { 2292 if (f == first) 2293 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2294 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2295 } 2296 } 2297 break; 2298 2299 case VAR_PPPOE: 2300 if (strcasecmp(argp, "3Com") == 0) 2301 physical_SetPPPoEnonstandard(arg->cx->physical, 1); 2302 else if (strcasecmp(argp, "standard") == 0) 2303 physical_SetPPPoEnonstandard(arg->cx->physical, 0); 2304 else { 2305 log_Printf(LogWARN, "PPPoE standard value must be \"standard\" or \"3Com\"\n"); 2306 res = 1; 2307 } 2308 break; 2309 2310 } 2311 2312 return res; 2313 } 2314 2315 static struct cmdtab const SetCommands[] = { 2316 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2317 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP}, 2318 {"authkey", "key", SetVariable, LOCAL_AUTH, 2319 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY}, 2320 {"authname", NULL, SetVariable, LOCAL_AUTH, 2321 "authentication name", "set authname name", (const void *)VAR_AUTHNAME}, 2322 {"autoload", NULL, SetVariable, LOCAL_AUTH, 2323 "auto link [de]activation", "set autoload maxtime maxload mintime minload", 2324 (const void *)VAR_AUTOLOAD}, 2325 {"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX, 2326 "datalink bandwidth", "set bandwidth value"}, 2327 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2328 "callback control", "set callback [none|auth|cbcp|" 2329 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK}, 2330 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2331 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]", 2332 (const void *)VAR_CBCP}, 2333 {"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2334 "CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY}, 2335 {"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement", 2336 "set cd value[!]", (const void *)VAR_CD}, 2337 {"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX, 2338 "CHAP retries", "set chapretry value [attempts]", 2339 (const void *)VAR_CHAPRETRY}, 2340 {"choked", NULL, SetVariable, LOCAL_AUTH, 2341 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED}, 2342 {"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX, 2343 "Use hardware flow control", "set ctsrts [on|off]", 2344 (const char *)VAR_CRTSCTS}, 2345 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2346 "deflate window sizes", "set deflate out-winsize in-winsize", 2347 (const void *) VAR_WINSIZE}, 2348 #ifndef NODES 2349 {"mppe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2350 "MPPE key size and state", "set mppe [40|56|128|* [stateful|stateless|*]]", 2351 (const void *) VAR_MPPE}, 2352 #endif 2353 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX, 2354 "physical device name", "set device|line device-name[,device-name]", 2355 (const void *) VAR_DEVICE}, 2356 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2357 "dialing script", "set dial chat-script", (const void *) VAR_DIAL}, 2358 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server", 2359 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS}, 2360 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH, 2361 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]"}, 2362 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX, 2363 "escape characters", "set escape hex-digit ..."}, 2364 {"filter", NULL, filter_Set, LOCAL_AUTH, 2365 "packet filters", "set filter alive|dial|in|out rule-no permit|deny " 2366 "[src_addr[/width]] [dst_addr[/width]] [proto " 2367 "[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]"}, 2368 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2369 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP}, 2370 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address", 2371 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"}, 2372 {"ifqueue", NULL, SetVariable, LOCAL_AUTH, "interface queue", 2373 "set ifqueue packets", (const void *)VAR_IFQUEUE}, 2374 {"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries", 2375 "set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY}, 2376 {"ipv6cpretry", "ipv6cpretries", SetVariable, LOCAL_AUTH, "IPV6CP retries", 2377 "set ipv6cpretry value [attempts]", (const void *)VAR_IPV6CPRETRY}, 2378 {"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries", 2379 "set lcpretry value [attempts]", (const void *)VAR_LCPRETRY}, 2380 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level", 2381 "set log [local] [+|-]all|async|cbcp|ccp|chat|command|connect|debug|dns|hdlc|" 2382 "id0|ipcp|lcp|lqm|phase|physical|radius|sync|tcp/ip|timer|tun..."}, 2383 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2384 "login script", "set login chat-script", (const void *) VAR_LOGIN}, 2385 {"logout", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2386 "logout script", "set logout chat-script", (const void *) VAR_LOGOUT}, 2387 {"lqrperiod", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2388 "LQR period", "set lqrperiod value", (const void *)VAR_LQRPERIOD}, 2389 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value", 2390 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE}, 2391 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value", 2392 "set mrru value", (const void *)VAR_MRRU}, 2393 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2394 "MRU value", "set mru [max[imum]] [value]", (const void *)VAR_MRU}, 2395 {"mtu", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2396 "interface MTU value", "set mtu [max[imum]] [value]", (const void *)VAR_MTU}, 2397 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server", 2398 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS}, 2399 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode", 2400 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE}, 2401 {"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries", 2402 "set papretry value [attempts]", (const void *)VAR_PAPRETRY}, 2403 {"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity", 2404 "set parity [odd|even|none]", (const void *)VAR_PARITY}, 2405 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)", 2406 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE}, 2407 {"proctitle", "title", SetProcTitle, LOCAL_AUTH, 2408 "Process title", "set proctitle [value]"}, 2409 #ifndef NORADIUS 2410 {"radius", NULL, SetVariable, LOCAL_AUTH, 2411 "RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS}, 2412 {"rad_alive", NULL, SetVariable, LOCAL_AUTH, 2413 "Raduis alive interval", "set rad_alive value", 2414 (const void *)VAR_RAD_ALIVE}, 2415 #endif 2416 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX, 2417 "Reconnect timeout", "set reconnect value ntries"}, 2418 {"recvpipe", NULL, SetVariable, LOCAL_AUTH, 2419 "RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE}, 2420 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX, 2421 "Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]"}, 2422 {"sendpipe", NULL, SetVariable, LOCAL_AUTH, 2423 "SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE}, 2424 {"server", "socket", SetServer, LOCAL_AUTH, "diagnostic port", 2425 "set server|socket TcpPort|LocalName|none|open|closed [password [mask]]"}, 2426 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX, 2427 "physical speed", "set speed value|sync"}, 2428 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX, 2429 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]"}, 2430 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout", 2431 "set timeout idletime", (const void *)VAR_IDLETIMEOUT}, 2432 {"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent ports", 2433 "set urgent [tcp|udp] [+|-]port...", (const void *)VAR_URGENTPORTS}, 2434 {"vj", NULL, ipcp_vjset, LOCAL_AUTH, 2435 "vj values", "set vj slots|slotcomp [value]"}, 2436 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2437 "Display this message", "set help|? [command]", SetCommands}, 2438 {"pppoe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2439 "Connect using standard/3Com mode", "set pppoe [standard|3Com]", 2440 (const char *)VAR_PPPOE}, 2441 {NULL, NULL, NULL}, 2442 }; 2443 2444 static int 2445 SetCommand(struct cmdargs const *arg) 2446 { 2447 if (arg->argc > arg->argn) 2448 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv, 2449 arg->prompt, arg->cx); 2450 else if (arg->prompt) 2451 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for" 2452 " syntax help.\n"); 2453 else 2454 log_Printf(LogWARN, "set command must have arguments\n"); 2455 2456 return 0; 2457 } 2458 2459 static int 2460 AddCommand(struct cmdargs const *arg) 2461 { 2462 struct ncpaddr gw; 2463 struct ncprange dest; 2464 struct in_addr host; 2465 #ifndef NOINET6 2466 struct in6_addr host6; 2467 #endif 2468 int dest_default, gw_arg, addrs; 2469 2470 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2) 2471 return -1; 2472 2473 addrs = 0; 2474 dest_default = 0; 2475 if (arg->argc == arg->argn + 2) { 2476 if (!strcasecmp(arg->argv[arg->argn], "default")) 2477 dest_default = 1; 2478 else { 2479 if (!ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn])) 2480 return -1; 2481 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6)) 2482 addrs = ROUTE_DSTMYADDR; 2483 else if (!strncasecmp(arg->argv[arg->argn], "MYADDR6", 7)) 2484 addrs = ROUTE_DSTMYADDR6; 2485 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7)) 2486 addrs = ROUTE_DSTHISADDR; 2487 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR6", 8)) 2488 addrs = ROUTE_DSTHISADDR6; 2489 else if (!strncasecmp(arg->argv[arg->argn], "DNS0", 4)) 2490 addrs = ROUTE_DSTDNS0; 2491 else if (!strncasecmp(arg->argv[arg->argn], "DNS1", 4)) 2492 addrs = ROUTE_DSTDNS1; 2493 } 2494 gw_arg = 1; 2495 } else { 2496 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2497 addrs = ROUTE_DSTMYADDR; 2498 host = arg->bundle->ncp.ipcp.my_ip; 2499 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2500 addrs = ROUTE_DSTHISADDR; 2501 host = arg->bundle->ncp.ipcp.peer_ip; 2502 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2503 addrs = ROUTE_DSTDNS0; 2504 host = arg->bundle->ncp.ipcp.ns.dns[0]; 2505 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2506 addrs = ROUTE_DSTDNS1; 2507 host = arg->bundle->ncp.ipcp.ns.dns[1]; 2508 } else { 2509 host = GetIpAddr(arg->argv[arg->argn]); 2510 if (host.s_addr == INADDR_NONE) { 2511 log_Printf(LogWARN, "%s: Invalid destination address\n", 2512 arg->argv[arg->argn]); 2513 return -1; 2514 } 2515 } 2516 ncprange_setip4(&dest, host, GetIpAddr(arg->argv[arg->argn + 1])); 2517 gw_arg = 2; 2518 } 2519 2520 if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR") == 0) { 2521 ncpaddr_setip4(&gw, arg->bundle->ncp.ipcp.peer_ip); 2522 addrs |= ROUTE_GWHISADDR; 2523 #ifndef NOINET6 2524 } else if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR6") == 0) { 2525 if (!ncpaddr_getip6(&arg->bundle->ncp.ipv6cp.hisaddr, &host6)) 2526 memset(&host6, '\0', sizeof host6); 2527 ncpaddr_setip6(&gw, &host6); 2528 addrs |= ROUTE_GWHISADDR6; 2529 #endif 2530 } else { 2531 if (!ncpaddr_aton(&gw, &arg->bundle->ncp, arg->argv[arg->argn + gw_arg])) { 2532 log_Printf(LogWARN, "%s: Invalid gateway address\n", 2533 arg->argv[arg->argn + gw_arg]); 2534 return -1; 2535 } 2536 } 2537 2538 if (dest_default) 2539 ncprange_setdefault(&dest, ncpaddr_family(&gw)); 2540 2541 if (rt_Set(arg->bundle, RTM_ADD, &dest, &gw, arg->cmd->args ? 1 : 0, 2542 ((addrs & ROUTE_GWHISADDR) || (addrs & ROUTE_GWHISADDR6)) ? 1 : 0) 2543 && addrs != ROUTE_STATIC) 2544 route_Add(&arg->bundle->ncp.route, addrs, &dest, &gw); 2545 2546 return 0; 2547 } 2548 2549 static int 2550 DeleteCommand(struct cmdargs const *arg) 2551 { 2552 struct ncprange dest; 2553 int addrs; 2554 2555 if (arg->argc == arg->argn+1) { 2556 if(strcasecmp(arg->argv[arg->argn], "all") == 0) { 2557 route_IfDelete(arg->bundle, 0); 2558 route_DeleteAll(&arg->bundle->ncp.route); 2559 } else { 2560 addrs = 0; 2561 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2562 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.my_ip); 2563 addrs = ROUTE_DSTMYADDR; 2564 #ifndef NOINET6 2565 } else if (strcasecmp(arg->argv[arg->argn], "MYADDR6") == 0) { 2566 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.myaddr); 2567 addrs = ROUTE_DSTMYADDR6; 2568 #endif 2569 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2570 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.peer_ip); 2571 addrs = ROUTE_DSTHISADDR; 2572 #ifndef NOINET6 2573 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR6") == 0) { 2574 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.hisaddr); 2575 addrs = ROUTE_DSTHISADDR6; 2576 #endif 2577 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2578 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[0]); 2579 addrs = ROUTE_DSTDNS0; 2580 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2581 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[1]); 2582 addrs = ROUTE_DSTDNS1; 2583 } else { 2584 ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn]); 2585 addrs = ROUTE_STATIC; 2586 } 2587 rt_Set(arg->bundle, RTM_DELETE, &dest, NULL, arg->cmd->args ? 1 : 0, 0); 2588 route_Delete(&arg->bundle->ncp.route, addrs, &dest); 2589 } 2590 } else 2591 return -1; 2592 2593 return 0; 2594 } 2595 2596 #ifndef NONAT 2597 static int 2598 NatEnable(struct cmdargs const *arg) 2599 { 2600 if (arg->argc == arg->argn+1) { 2601 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2602 if (!arg->bundle->NatEnabled) { 2603 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 2604 PacketAliasSetAddress(arg->bundle->ncp.ipcp.my_ip); 2605 arg->bundle->NatEnabled = 1; 2606 } 2607 return 0; 2608 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) { 2609 arg->bundle->NatEnabled = 0; 2610 arg->bundle->cfg.opt &= ~OPT_IFACEALIAS; 2611 /* Don't iface_Clear() - there may be manually configured addresses */ 2612 return 0; 2613 } 2614 } 2615 2616 return -1; 2617 } 2618 2619 2620 static int 2621 NatOption(struct cmdargs const *arg) 2622 { 2623 long param = (long)arg->cmd->args; 2624 2625 if (arg->argc == arg->argn+1) { 2626 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2627 if (arg->bundle->NatEnabled) { 2628 PacketAliasSetMode(param, param); 2629 return 0; 2630 } 2631 log_Printf(LogWARN, "nat not enabled\n"); 2632 } else if (strcmp(arg->argv[arg->argn], "no") == 0) { 2633 if (arg->bundle->NatEnabled) { 2634 PacketAliasSetMode(0, param); 2635 return 0; 2636 } 2637 log_Printf(LogWARN, "nat not enabled\n"); 2638 } 2639 } 2640 return -1; 2641 } 2642 #endif /* #ifndef NONAT */ 2643 2644 static int 2645 LinkCommand(struct cmdargs const *arg) 2646 { 2647 if (arg->argc > arg->argn+1) { 2648 char namelist[LINE_LEN]; 2649 struct datalink *cx; 2650 char *name; 2651 int result = 0; 2652 2653 if (!strcmp(arg->argv[arg->argn], "*")) { 2654 struct datalink *dl; 2655 2656 cx = arg->bundle->links; 2657 while (cx) { 2658 /* Watch it, the command could be a ``remove'' */ 2659 dl = cx->next; 2660 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2661 arg->prompt, cx); 2662 for (cx = arg->bundle->links; cx; cx = cx->next) 2663 if (cx == dl) 2664 break; /* Pointer's still valid ! */ 2665 } 2666 } else { 2667 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2668 namelist[sizeof namelist - 1] = '\0'; 2669 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 2670 if (!bundle2datalink(arg->bundle, name)) { 2671 log_Printf(LogWARN, "link: %s: Invalid link name\n", name); 2672 return 1; 2673 } 2674 2675 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2676 namelist[sizeof namelist - 1] = '\0'; 2677 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) { 2678 cx = bundle2datalink(arg->bundle, name); 2679 if (cx) 2680 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2681 arg->prompt, cx); 2682 else { 2683 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name); 2684 result++; 2685 } 2686 } 2687 } 2688 return result; 2689 } 2690 2691 log_Printf(LogWARN, "usage: %s\n", arg->cmd->syntax); 2692 return 2; 2693 } 2694 2695 struct link * 2696 command_ChooseLink(struct cmdargs const *arg) 2697 { 2698 if (arg->cx) 2699 return &arg->cx->physical->link; 2700 else if (!arg->bundle->ncp.mp.cfg.mrru) { 2701 struct datalink *dl = bundle2datalink(arg->bundle, NULL); 2702 if (dl) 2703 return &dl->physical->link; 2704 } 2705 return &arg->bundle->ncp.mp.link; 2706 } 2707 2708 static const char * 2709 ident_cmd(const char *cmd, unsigned *keep, unsigned *add) 2710 { 2711 const char *result; 2712 2713 switch (*cmd) { 2714 case 'A': 2715 case 'a': 2716 result = "accept"; 2717 *keep = NEG_MYMASK; 2718 *add = NEG_ACCEPTED; 2719 break; 2720 case 'D': 2721 case 'd': 2722 switch (cmd[1]) { 2723 case 'E': 2724 case 'e': 2725 result = "deny"; 2726 *keep = NEG_MYMASK; 2727 *add = 0; 2728 break; 2729 case 'I': 2730 case 'i': 2731 result = "disable"; 2732 *keep = NEG_HISMASK; 2733 *add = 0; 2734 break; 2735 default: 2736 return NULL; 2737 } 2738 break; 2739 case 'E': 2740 case 'e': 2741 result = "enable"; 2742 *keep = NEG_HISMASK; 2743 *add = NEG_ENABLED; 2744 break; 2745 default: 2746 return NULL; 2747 } 2748 2749 return result; 2750 } 2751 2752 static int 2753 OptSet(struct cmdargs const *arg) 2754 { 2755 int bit = (int)(long)arg->cmd->args; 2756 unsigned keep; /* Keep these bits */ 2757 unsigned add; /* Add these bits */ 2758 2759 if (ident_cmd(arg->argv[arg->argn - 2], &keep, &add) == NULL) 2760 return 1; 2761 2762 #ifndef NOINET6 2763 if (add == NEG_ENABLED && bit == OPT_IPV6CP && !probe.ipv6_available) { 2764 log_Printf(LogWARN, "IPv6 is not available on this machine\n"); 2765 return 1; 2766 } 2767 #endif 2768 2769 if (add) 2770 arg->bundle->cfg.opt |= bit; 2771 else 2772 arg->bundle->cfg.opt &= ~bit; 2773 2774 return 0; 2775 } 2776 2777 static int 2778 IfaceAliasOptSet(struct cmdargs const *arg) 2779 { 2780 unsigned save = arg->bundle->cfg.opt; 2781 int result = OptSet(arg); 2782 2783 if (result == 0) 2784 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) { 2785 arg->bundle->cfg.opt = save; 2786 log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n"); 2787 result = 2; 2788 } 2789 2790 return result; 2791 } 2792 2793 static int 2794 NegotiateSet(struct cmdargs const *arg) 2795 { 2796 long param = (long)arg->cmd->args; 2797 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 2798 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 2799 const char *cmd; 2800 unsigned keep; /* Keep these bits */ 2801 unsigned add; /* Add these bits */ 2802 2803 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2804 return 1; 2805 2806 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 2807 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n", 2808 cmd, arg->cmd->name); 2809 return 2; 2810 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 2811 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n", 2812 cmd, arg->cmd->name, cx->name); 2813 cx = NULL; 2814 } 2815 2816 switch (param) { 2817 case NEG_ACFCOMP: 2818 cx->physical->link.lcp.cfg.acfcomp &= keep; 2819 cx->physical->link.lcp.cfg.acfcomp |= add; 2820 break; 2821 case NEG_CHAP05: 2822 cx->physical->link.lcp.cfg.chap05 &= keep; 2823 cx->physical->link.lcp.cfg.chap05 |= add; 2824 break; 2825 #ifndef NODES 2826 case NEG_CHAP80: 2827 cx->physical->link.lcp.cfg.chap80nt &= keep; 2828 cx->physical->link.lcp.cfg.chap80nt |= add; 2829 break; 2830 case NEG_CHAP80LM: 2831 cx->physical->link.lcp.cfg.chap80lm &= keep; 2832 cx->physical->link.lcp.cfg.chap80lm |= add; 2833 break; 2834 case NEG_CHAP81: 2835 cx->physical->link.lcp.cfg.chap81 &= keep; 2836 cx->physical->link.lcp.cfg.chap81 |= add; 2837 break; 2838 case NEG_MPPE: 2839 l->ccp.cfg.neg[CCP_NEG_MPPE] &= keep; 2840 l->ccp.cfg.neg[CCP_NEG_MPPE] |= add; 2841 break; 2842 #endif 2843 case NEG_DEFLATE: 2844 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep; 2845 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add; 2846 break; 2847 case NEG_DNS: 2848 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep; 2849 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add; 2850 break; 2851 case NEG_ENDDISC: 2852 arg->bundle->ncp.mp.cfg.negenddisc &= keep; 2853 arg->bundle->ncp.mp.cfg.negenddisc |= add; 2854 break; 2855 case NEG_LQR: 2856 cx->physical->link.lcp.cfg.lqr &= keep; 2857 cx->physical->link.lcp.cfg.lqr |= add; 2858 break; 2859 case NEG_PAP: 2860 cx->physical->link.lcp.cfg.pap &= keep; 2861 cx->physical->link.lcp.cfg.pap |= add; 2862 break; 2863 case NEG_PPPDDEFLATE: 2864 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep; 2865 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add; 2866 break; 2867 case NEG_PRED1: 2868 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep; 2869 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add; 2870 break; 2871 case NEG_PROTOCOMP: 2872 cx->physical->link.lcp.cfg.protocomp &= keep; 2873 cx->physical->link.lcp.cfg.protocomp |= add; 2874 break; 2875 case NEG_SHORTSEQ: 2876 switch (bundle_Phase(arg->bundle)) { 2877 case PHASE_DEAD: 2878 break; 2879 case PHASE_ESTABLISH: 2880 /* Make sure none of our links are DATALINK_LCP or greater */ 2881 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 2882 log_Printf(LogWARN, "shortseq: Only changable before" 2883 " LCP negotiations\n"); 2884 return 1; 2885 } 2886 break; 2887 default: 2888 log_Printf(LogWARN, "shortseq: Only changable at phase" 2889 " DEAD/ESTABLISH\n"); 2890 return 1; 2891 } 2892 arg->bundle->ncp.mp.cfg.shortseq &= keep; 2893 arg->bundle->ncp.mp.cfg.shortseq |= add; 2894 break; 2895 case NEG_VJCOMP: 2896 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep; 2897 arg->bundle->ncp.ipcp.cfg.vj.neg |= add; 2898 break; 2899 } 2900 2901 return 0; 2902 } 2903 2904 static struct cmdtab const NegotiateCommands[] = { 2905 {"filter-decapsulation", NULL, OptSet, LOCAL_AUTH, 2906 "filter on PPPoUDP payloads", "disable|enable", 2907 (const void *)OPT_FILTERDECAP}, 2908 {"force-scripts", NULL, OptSet, LOCAL_AUTH, 2909 "Force execution of the configured chat scripts", "disable|enable", 2910 (const void *)OPT_FORCE_SCRIPTS}, 2911 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids", 2912 "disable|enable", (const void *)OPT_IDCHECK}, 2913 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH, 2914 "retain interface addresses", "disable|enable", 2915 (const void *)OPT_IFACEALIAS}, 2916 #ifndef NOINET6 2917 {"ipcp", NULL, OptSet, LOCAL_AUTH, "IP Network Control Protocol", 2918 "disable|enable", (const void *)OPT_IPCP}, 2919 {"ipv6cp", NULL, OptSet, LOCAL_AUTH, "IPv6 Network Control Protocol", 2920 "disable|enable", (const void *)OPT_IPV6CP}, 2921 #endif 2922 {"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader", 2923 "disable|enable", (const void *)OPT_KEEPSESSION}, 2924 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface", 2925 "disable|enable", (const void *)OPT_LOOPBACK}, 2926 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file", 2927 "disable|enable", (const void *)OPT_PASSWDAUTH}, 2928 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry", 2929 "disable|enable", (const void *)OPT_PROXY}, 2930 {"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts", 2931 "disable|enable", (const void *)OPT_PROXYALL}, 2932 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes", 2933 "disable|enable", (const void *)OPT_SROUTES}, 2934 {"tcpmssfixup", "mssfixup", OptSet, LOCAL_AUTH, "Modify MSS options", 2935 "disable|enable", (const void *)OPT_TCPMSSFIXUP}, 2936 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput", 2937 "disable|enable", (const void *)OPT_THROUGHPUT}, 2938 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp", 2939 "disable|enable", (const void *)OPT_UTMP}, 2940 2941 #ifndef NOINET6 2942 #define OPT_MAX 14 /* accept/deny allowed below and not above */ 2943 #else 2944 #define OPT_MAX 12 2945 #endif 2946 2947 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2948 "Address & Control field compression", "accept|deny|disable|enable", 2949 (const void *)NEG_ACFCOMP}, 2950 {"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2951 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable", 2952 (const void *)NEG_CHAP05}, 2953 #ifndef NODES 2954 {"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2955 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2956 (const void *)NEG_CHAP80}, 2957 {"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2958 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2959 (const void *)NEG_CHAP80LM}, 2960 {"mschapv2", "chap81", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2961 "Microsoft CHAP v2", "accept|deny|disable|enable", 2962 (const void *)NEG_CHAP81}, 2963 {"mppe", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2964 "MPPE encryption", "accept|deny|disable|enable", 2965 (const void *)NEG_MPPE}, 2966 #endif 2967 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2968 "Deflate compression", "accept|deny|disable|enable", 2969 (const void *)NEG_DEFLATE}, 2970 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2971 "Deflate (type 24) compression", "accept|deny|disable|enable", 2972 (const void *)NEG_PPPDDEFLATE}, 2973 {"dns", NULL, NegotiateSet, LOCAL_AUTH, 2974 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS}, 2975 {"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation", 2976 "accept|deny|disable|enable", (const void *)NEG_ENDDISC}, 2977 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2978 "Link Quality Reports", "accept|deny|disable|enable", 2979 (const void *)NEG_LQR}, 2980 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2981 "Password Authentication protocol", "accept|deny|disable|enable", 2982 (const void *)NEG_PAP}, 2983 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2984 "Predictor 1 compression", "accept|deny|disable|enable", 2985 (const void *)NEG_PRED1}, 2986 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2987 "Protocol field compression", "accept|deny|disable|enable", 2988 (const void *)NEG_PROTOCOMP}, 2989 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH, 2990 "MP Short Sequence Numbers", "accept|deny|disable|enable", 2991 (const void *)NEG_SHORTSEQ}, 2992 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH, 2993 "Van Jacobson header compression", "accept|deny|disable|enable", 2994 (const void *)NEG_VJCOMP}, 2995 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2996 "Display this message", "accept|deny|disable|enable help|? [value]", 2997 NegotiateCommands}, 2998 {NULL, NULL, NULL}, 2999 }; 3000 3001 static int 3002 NegotiateCommand(struct cmdargs const *arg) 3003 { 3004 if (arg->argc > arg->argn) { 3005 char const *argv[3]; 3006 unsigned keep, add; 3007 int n; 3008 3009 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL) 3010 return -1; 3011 argv[2] = NULL; 3012 3013 for (n = arg->argn; n < arg->argc; n++) { 3014 argv[1] = arg->argv[n]; 3015 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ? 3016 0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx); 3017 } 3018 } else if (arg->prompt) 3019 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n", 3020 arg->argv[arg->argn-1]); 3021 else 3022 log_Printf(LogWARN, "%s command must have arguments\n", 3023 arg->argv[arg->argn] ); 3024 3025 return 0; 3026 } 3027 3028 const char * 3029 command_ShowNegval(unsigned val) 3030 { 3031 switch (val&3) { 3032 case 1: return "disabled & accepted"; 3033 case 2: return "enabled & denied"; 3034 case 3: return "enabled & accepted"; 3035 } 3036 return "disabled & denied"; 3037 } 3038 3039 static int 3040 ClearCommand(struct cmdargs const *arg) 3041 { 3042 struct pppThroughput *t; 3043 struct datalink *cx; 3044 int i, clear_type; 3045 3046 if (arg->argc < arg->argn + 1) 3047 return -1; 3048 3049 if (strcasecmp(arg->argv[arg->argn], "physical") == 0) { 3050 cx = arg->cx; 3051 if (!cx) 3052 cx = bundle2datalink(arg->bundle, NULL); 3053 if (!cx) { 3054 log_Printf(LogWARN, "A link must be specified for ``clear physical''\n"); 3055 return 1; 3056 } 3057 t = &cx->physical->link.stats.total; 3058 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0) 3059 t = &arg->bundle->ncp.ipcp.throughput; 3060 #ifndef NOINET6 3061 else if (strcasecmp(arg->argv[arg->argn], "ipv6cp") == 0) 3062 t = &arg->bundle->ncp.ipv6cp.throughput; 3063 #endif 3064 else 3065 return -1; 3066 3067 if (arg->argc > arg->argn + 1) { 3068 clear_type = 0; 3069 for (i = arg->argn + 1; i < arg->argc; i++) 3070 if (strcasecmp(arg->argv[i], "overall") == 0) 3071 clear_type |= THROUGHPUT_OVERALL; 3072 else if (strcasecmp(arg->argv[i], "current") == 0) 3073 clear_type |= THROUGHPUT_CURRENT; 3074 else if (strcasecmp(arg->argv[i], "peak") == 0) 3075 clear_type |= THROUGHPUT_PEAK; 3076 else 3077 return -1; 3078 } else 3079 clear_type = THROUGHPUT_ALL; 3080 3081 throughput_clear(t, clear_type, arg->prompt); 3082 return 0; 3083 } 3084 3085 static int 3086 RunListCommand(struct cmdargs const *arg) 3087 { 3088 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???"; 3089 3090 #ifndef NONAT 3091 if (arg->cmd->args == NatCommands && 3092 tolower(*arg->argv[arg->argn - 1]) == 'a') { 3093 if (arg->prompt) 3094 prompt_Printf(arg->prompt, "The alias command is deprecated\n"); 3095 else 3096 log_Printf(LogWARN, "The alias command is deprecated\n"); 3097 } 3098 #endif 3099 3100 if (arg->argc > arg->argn) 3101 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv, 3102 arg->prompt, arg->cx); 3103 else if (arg->prompt) 3104 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help" 3105 " <option>' for syntax help.\n", cmd, cmd); 3106 else 3107 log_Printf(LogWARN, "%s command must have arguments\n", cmd); 3108 3109 return 0; 3110 } 3111 3112 static int 3113 IfaceAddCommand(struct cmdargs const *arg) 3114 { 3115 struct ncpaddr peer, addr; 3116 struct ncprange ifa; 3117 struct in_addr mask; 3118 int n, how; 3119 3120 if (arg->argc == arg->argn + 1) { 3121 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3122 return -1; 3123 ncpaddr_init(&peer); 3124 } else { 3125 if (arg->argc == arg->argn + 2) { 3126 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3127 return -1; 3128 n = 1; 3129 } else if (arg->argc == arg->argn + 3) { 3130 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn])) 3131 return -1; 3132 if (ncpaddr_family(&addr) != AF_INET) 3133 return -1; 3134 ncprange_sethost(&ifa, &addr); 3135 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn + 1])) 3136 return -1; 3137 if (!ncpaddr_getip4(&addr, &mask)) 3138 return -1; 3139 if (!ncprange_setip4mask(&ifa, mask)) 3140 return -1; 3141 n = 2; 3142 } else 3143 return -1; 3144 3145 if (!ncpaddr_aton(&peer, NULL, arg->argv[arg->argn + n])) 3146 return -1; 3147 3148 if (ncprange_family(&ifa) != ncpaddr_family(&peer)) { 3149 log_Printf(LogWARN, "IfaceAddCommand: src and dst address families" 3150 " differ\n"); 3151 return -1; 3152 } 3153 } 3154 3155 how = IFACE_ADD_LAST; 3156 if (arg->cmd->args) 3157 how |= IFACE_FORCE_ADD; 3158 3159 return !iface_Add(arg->bundle->iface, &arg->bundle->ncp, &ifa, &peer, how); 3160 } 3161 3162 static int 3163 IfaceDeleteCommand(struct cmdargs const *arg) 3164 { 3165 struct ncpaddr ifa; 3166 struct in_addr ifa4; 3167 int ok; 3168 3169 if (arg->argc != arg->argn + 1) 3170 return -1; 3171 3172 if (!ncpaddr_aton(&ifa, NULL, arg->argv[arg->argn])) 3173 return -1; 3174 3175 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED && 3176 ncpaddr_getip4(&ifa, &ifa4) && 3177 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa4.s_addr) { 3178 log_Printf(LogWARN, "%s: Cannot remove active interface address\n", 3179 ncpaddr_ntoa(&ifa)); 3180 return 1; 3181 } 3182 3183 ok = iface_Delete(arg->bundle->iface, &arg->bundle->ncp, &ifa); 3184 if (!ok) { 3185 if (arg->cmd->args) 3186 ok = 1; 3187 else if (arg->prompt) 3188 prompt_Printf(arg->prompt, "%s: No such interface address\n", 3189 ncpaddr_ntoa(&ifa)); 3190 else 3191 log_Printf(LogWARN, "%s: No such interface address\n", 3192 ncpaddr_ntoa(&ifa)); 3193 } 3194 3195 return !ok; 3196 } 3197 3198 static int 3199 IfaceClearCommand(struct cmdargs const *arg) 3200 { 3201 int family, how; 3202 3203 family = 0; 3204 if (arg->argc == arg->argn + 1) { 3205 if (strcasecmp(arg->argv[arg->argn], "inet") == 0) 3206 family = AF_INET; 3207 #ifndef NOINET6 3208 else if (strcasecmp(arg->argv[arg->argn], "inet6") == 0) 3209 family = AF_INET6; 3210 #endif 3211 else 3212 return -1; 3213 } else if (arg->argc != arg->argn) 3214 return -1; 3215 3216 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED || 3217 arg->bundle->phys_type.all & PHYS_AUTO ? 3218 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL; 3219 iface_Clear(arg->bundle->iface, &arg->bundle->ncp, family, how); 3220 3221 return 0; 3222 } 3223 3224 static int 3225 SetProcTitle(struct cmdargs const *arg) 3226 { 3227 static char title[LINE_LEN]; 3228 char *argv[MAXARGS]; 3229 int argc = arg->argc - arg->argn; 3230 3231 if (arg->argc == arg->argn) { 3232 SetTitle(NULL); 3233 return 0; 3234 } 3235 3236 if (argc >= sizeof argv / sizeof argv[0]) { 3237 argc = sizeof argv / sizeof argv[0] - 1; 3238 log_Printf(LogWARN, "Truncating proc title to %d args\n", argc); 3239 } 3240 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 3241 Concatinate(title, sizeof title, argc, (const char *const *)argv); 3242 SetTitle(title); 3243 command_Free(argc, argv); 3244 3245 return 0; 3246 } 3247