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 37 145 146 /* ``accept|deny|disable|enable'' masks */ 147 #define NEG_HISMASK (1) 148 #define NEG_MYMASK (2) 149 150 /* ``accept|deny|disable|enable'' values */ 151 #define NEG_ACFCOMP 40 152 #define NEG_CHAP05 41 153 #define NEG_CHAP80 42 154 #define NEG_CHAP80LM 43 155 #define NEG_DEFLATE 44 156 #define NEG_DNS 45 157 #define NEG_ENDDISC 46 158 #define NEG_LQR 47 159 #define NEG_PAP 48 160 #define NEG_PPPDDEFLATE 49 161 #define NEG_PRED1 50 162 #define NEG_PROTOCOMP 51 163 #define NEG_SHORTSEQ 52 164 #define NEG_VJCOMP 53 165 #define NEG_MPPE 54 166 #define NEG_CHAP81 55 167 168 const char Version[] = "3.1"; 169 170 static int ShowCommand(struct cmdargs const *); 171 static int TerminalCommand(struct cmdargs const *); 172 static int QuitCommand(struct cmdargs const *); 173 static int OpenCommand(struct cmdargs const *); 174 static int CloseCommand(struct cmdargs const *); 175 static int DownCommand(struct cmdargs const *); 176 static int SetCommand(struct cmdargs const *); 177 static int LinkCommand(struct cmdargs const *); 178 static int AddCommand(struct cmdargs const *); 179 static int DeleteCommand(struct cmdargs const *); 180 static int NegotiateCommand(struct cmdargs const *); 181 static int ClearCommand(struct cmdargs const *); 182 static int RunListCommand(struct cmdargs const *); 183 static int IfaceAddCommand(struct cmdargs const *); 184 static int IfaceDeleteCommand(struct cmdargs const *); 185 static int IfaceClearCommand(struct cmdargs const *); 186 static int SetProcTitle(struct cmdargs const *); 187 #ifndef NONAT 188 static int NatEnable(struct cmdargs const *); 189 static int NatOption(struct cmdargs const *); 190 #endif 191 192 static const char * 193 showcx(struct cmdtab const *cmd) 194 { 195 if (cmd->lauth & LOCAL_CX) 196 return "(c)"; 197 else if (cmd->lauth & LOCAL_CX_OPT) 198 return "(o)"; 199 200 return ""; 201 } 202 203 static int 204 HelpCommand(struct cmdargs const *arg) 205 { 206 struct cmdtab const *cmd; 207 int n, cmax, dmax, cols, cxlen; 208 const char *cx; 209 210 if (!arg->prompt) { 211 log_Printf(LogWARN, "help: Cannot help without a prompt\n"); 212 return 0; 213 } 214 215 if (arg->argc > arg->argn) { 216 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++) 217 if ((cmd->lauth & arg->prompt->auth) && 218 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) || 219 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) { 220 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd)); 221 return 0; 222 } 223 return -1; 224 } 225 226 cmax = dmax = 0; 227 for (cmd = arg->cmdtab; cmd->func; cmd++) 228 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 229 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax) 230 cmax = n; 231 if ((n = strlen(cmd->helpmes)) > dmax) 232 dmax = n; 233 } 234 235 cols = 80 / (dmax + cmax + 3); 236 n = 0; 237 prompt_Printf(arg->prompt, "(o) = Optional context," 238 " (c) = Context required\n"); 239 for (cmd = arg->cmdtab; cmd->func; cmd++) 240 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 241 cx = showcx(cmd); 242 cxlen = cmax - strlen(cmd->name); 243 if (n % cols != 0) 244 prompt_Printf(arg->prompt, " "); 245 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s", 246 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes); 247 if (++n % cols == 0) 248 prompt_Printf(arg->prompt, "\n"); 249 } 250 if (n % cols != 0) 251 prompt_Printf(arg->prompt, "\n"); 252 253 return 0; 254 } 255 256 static int 257 IdentCommand(struct cmdargs const *arg) 258 { 259 Concatinate(arg->cx->physical->link.lcp.cfg.ident, 260 sizeof arg->cx->physical->link.lcp.cfg.ident, 261 arg->argc - arg->argn, arg->argv + arg->argn); 262 return 0; 263 } 264 265 static int 266 SendIdentification(struct cmdargs const *arg) 267 { 268 if (arg->cx->state < DATALINK_LCP) { 269 log_Printf(LogWARN, "sendident: link has not reached LCP\n"); 270 return 2; 271 } 272 return lcp_SendIdentification(&arg->cx->physical->link.lcp) ? 0 : 1; 273 } 274 275 static int 276 CloneCommand(struct cmdargs const *arg) 277 { 278 char namelist[LINE_LEN]; 279 char *name; 280 int f; 281 282 if (arg->argc == arg->argn) 283 return -1; 284 285 namelist[sizeof namelist - 1] = '\0'; 286 for (f = arg->argn; f < arg->argc; f++) { 287 strncpy(namelist, arg->argv[f], sizeof namelist - 1); 288 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 289 bundle_DatalinkClone(arg->bundle, arg->cx, name); 290 } 291 292 return 0; 293 } 294 295 static int 296 RemoveCommand(struct cmdargs const *arg) 297 { 298 if (arg->argc != arg->argn) 299 return -1; 300 301 if (arg->cx->state != DATALINK_CLOSED) { 302 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n"); 303 return 2; 304 } 305 306 bundle_DatalinkRemove(arg->bundle, arg->cx); 307 return 0; 308 } 309 310 static int 311 RenameCommand(struct cmdargs const *arg) 312 { 313 if (arg->argc != arg->argn + 1) 314 return -1; 315 316 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn])) 317 return 0; 318 319 log_Printf(LogWARN, "%s -> %s: target name already exists\n", 320 arg->cx->name, arg->argv[arg->argn]); 321 return 1; 322 } 323 324 static int 325 LoadCommand(struct cmdargs const *arg) 326 { 327 const char *err; 328 int n, mode; 329 330 mode = arg->bundle->phys_type.all; 331 332 if (arg->argn < arg->argc) { 333 for (n = arg->argn; n < arg->argc; n++) 334 if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) { 335 log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err); 336 return 1; 337 } 338 339 for (n = arg->argn; n < arg->argc; n++) { 340 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 341 system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx); 342 } 343 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 344 } else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) { 345 log_Printf(LogWARN, "default: %s\n", err); 346 return 1; 347 } else { 348 bundle_SetLabel(arg->bundle, "default"); 349 system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx); 350 bundle_SetLabel(arg->bundle, "default"); 351 } 352 353 return 0; 354 } 355 356 static int 357 LogCommand(struct cmdargs const *arg) 358 { 359 char buf[LINE_LEN]; 360 361 if (arg->argn < arg->argc) { 362 char *argv[MAXARGS]; 363 int argc = arg->argc - arg->argn; 364 365 if (argc >= sizeof argv / sizeof argv[0]) { 366 argc = sizeof argv / sizeof argv[0] - 1; 367 log_Printf(LogWARN, "Truncating log command to %d args\n", argc); 368 } 369 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 370 Concatinate(buf, sizeof buf, argc, (const char *const *)argv); 371 log_Printf(LogLOG, "%s\n", buf); 372 command_Free(argc, argv); 373 return 0; 374 } 375 376 return -1; 377 } 378 379 static int 380 SaveCommand(struct cmdargs const *arg) 381 { 382 log_Printf(LogWARN, "save command is not yet implemented.\n"); 383 return 1; 384 } 385 386 static int 387 DialCommand(struct cmdargs const *arg) 388 { 389 int res; 390 391 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO))) 392 || (!arg->cx && 393 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) { 394 log_Printf(LogWARN, "Manual dial is only available for auto and" 395 " interactive links\n"); 396 return 1; 397 } 398 399 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0) 400 return res; 401 402 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 403 404 return 0; 405 } 406 407 #define isinword(ch) (isalnum(ch) || (ch) == '_') 408 409 static char * 410 strstrword(char *big, const char *little) 411 { 412 /* Get the first occurance of the word ``little'' in ``big'' */ 413 char *pos; 414 int len; 415 416 pos = big; 417 len = strlen(little); 418 419 while ((pos = strstr(pos, little)) != NULL) 420 if ((pos != big && isinword(pos[-1])) || isinword(pos[len])) 421 pos++; 422 else if (pos != big && pos[-1] == '\\') 423 memmove(pos - 1, pos, strlen(pos) + 1); 424 else 425 break; 426 427 return pos; 428 } 429 430 static char * 431 subst(char *tgt, const char *oldstr, const char *newstr) 432 { 433 /* tgt is a malloc()d area... realloc() as necessary */ 434 char *word, *ntgt; 435 int ltgt, loldstr, lnewstr, pos; 436 437 if ((word = strstrword(tgt, oldstr)) == NULL) 438 return tgt; 439 440 ltgt = strlen(tgt) + 1; 441 loldstr = strlen(oldstr); 442 lnewstr = strlen(newstr); 443 do { 444 pos = word - tgt; 445 if (loldstr > lnewstr) 446 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 447 if (loldstr != lnewstr) { 448 ntgt = realloc(tgt, ltgt += lnewstr - loldstr); 449 if (ntgt == NULL) 450 break; /* Oh wonderful ! */ 451 word = ntgt + pos; 452 tgt = ntgt; 453 } 454 if (lnewstr > loldstr) 455 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 456 bcopy(newstr, word, lnewstr); 457 } while ((word = strstrword(word, oldstr))); 458 459 return tgt; 460 } 461 462 static char * 463 substip(char *tgt, const char *oldstr, struct in_addr ip) 464 { 465 return subst(tgt, oldstr, inet_ntoa(ip)); 466 } 467 468 static char * 469 substlong(char *tgt, const char *oldstr, long l) 470 { 471 char buf[23]; 472 473 snprintf(buf, sizeof buf, "%ld", l); 474 475 return subst(tgt, oldstr, buf); 476 } 477 478 static char * 479 substull(char *tgt, const char *oldstr, unsigned long long ull) 480 { 481 char buf[21]; 482 483 snprintf(buf, sizeof buf, "%llu", ull); 484 485 return subst(tgt, oldstr, buf); 486 } 487 488 489 #ifndef NOINET6 490 static char * 491 substipv6(char *tgt, const char *oldstr, const struct ncpaddr *ip) 492 { 493 return subst(tgt, oldstr, ncpaddr_ntoa(ip)); 494 } 495 #endif 496 497 void 498 command_Expand(char **nargv, int argc, char const *const *oargv, 499 struct bundle *bundle, int inc0, pid_t pid) 500 { 501 int arg, secs; 502 char uptime[20]; 503 unsigned long long oin, oout, pin, pout; 504 505 if (inc0) 506 arg = 0; /* Start at arg 0 */ 507 else { 508 nargv[0] = strdup(oargv[0]); 509 arg = 1; 510 } 511 512 secs = bundle_Uptime(bundle); 513 snprintf(uptime, sizeof uptime, "%d:%02d:%02d", 514 secs / 3600, (secs / 60) % 60, secs % 60); 515 oin = bundle->ncp.ipcp.throughput.OctetsIn; 516 oout = bundle->ncp.ipcp.throughput.OctetsOut; 517 pin = bundle->ncp.ipcp.throughput.PacketsIn; 518 pout = bundle->ncp.ipcp.throughput.PacketsOut; 519 #ifndef NOINET6 520 oin += bundle->ncp.ipv6cp.throughput.OctetsIn; 521 oout += bundle->ncp.ipv6cp.throughput.OctetsOut; 522 pin += bundle->ncp.ipv6cp.throughput.PacketsIn; 523 pout += bundle->ncp.ipv6cp.throughput.PacketsOut; 524 #endif 525 526 for (; arg < argc; arg++) { 527 nargv[arg] = strdup(oargv[arg]); 528 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name); 529 nargv[arg] = subst(nargv[arg], "COMPILATIONDATE", __DATE__); 530 nargv[arg] = substip(nargv[arg], "DNS0", bundle->ncp.ipcp.ns.dns[0]); 531 nargv[arg] = substip(nargv[arg], "DNS1", bundle->ncp.ipcp.ns.dns[1]); 532 nargv[arg] = subst(nargv[arg], "ENDDISC", 533 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class, 534 bundle->ncp.mp.cfg.enddisc.address, 535 bundle->ncp.mp.cfg.enddisc.len)); 536 nargv[arg] = substip(nargv[arg], "HISADDR", bundle->ncp.ipcp.peer_ip); 537 #ifndef NOINET6 538 nargv[arg] = substipv6(nargv[arg], "HISADDR6", &bundle->ncp.ipv6cp.hisaddr); 539 #endif 540 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name); 541 nargv[arg] = substull(nargv[arg], "IPOCTETSIN", 542 bundle->ncp.ipcp.throughput.OctetsIn); 543 nargv[arg] = substull(nargv[arg], "IPOCTETSOUT", 544 bundle->ncp.ipcp.throughput.OctetsOut); 545 nargv[arg] = substull(nargv[arg], "IPPACKETSIN", 546 bundle->ncp.ipcp.throughput.PacketsIn); 547 nargv[arg] = substull(nargv[arg], "IPPACKETSOUT", 548 bundle->ncp.ipcp.throughput.PacketsOut); 549 #ifndef NOINET6 550 nargv[arg] = substull(nargv[arg], "IPV6OCTETSIN", 551 bundle->ncp.ipv6cp.throughput.OctetsIn); 552 nargv[arg] = substull(nargv[arg], "IPV6OCTETSOUT", 553 bundle->ncp.ipv6cp.throughput.OctetsOut); 554 nargv[arg] = substull(nargv[arg], "IPV6PACKETSIN", 555 bundle->ncp.ipv6cp.throughput.PacketsIn); 556 nargv[arg] = substull(nargv[arg], "IPV6PACKETSOUT", 557 bundle->ncp.ipv6cp.throughput.PacketsOut); 558 #endif 559 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle)); 560 nargv[arg] = substip(nargv[arg], "MYADDR", bundle->ncp.ipcp.my_ip); 561 #ifndef NOINET6 562 nargv[arg] = substipv6(nargv[arg], "MYADDR6", &bundle->ncp.ipv6cp.myaddr); 563 #endif 564 nargv[arg] = substull(nargv[arg], "OCTETSIN", oin); 565 nargv[arg] = substull(nargv[arg], "OCTETSOUT", oout); 566 nargv[arg] = substull(nargv[arg], "PACKETSIN", pin); 567 nargv[arg] = substull(nargv[arg], "PACKETSOUT", pout); 568 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC", 569 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class, 570 bundle->ncp.mp.peer.enddisc.address, 571 bundle->ncp.mp.peer.enddisc.len)); 572 nargv[arg] = substlong(nargv[arg], "PROCESSID", pid); 573 if (server.cfg.port) 574 nargv[arg] = substlong(nargv[arg], "SOCKNAME", server.cfg.port); 575 else 576 nargv[arg] = subst(nargv[arg], "SOCKNAME", server.cfg.sockname); 577 nargv[arg] = subst(nargv[arg], "UPTIME", uptime); 578 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname); 579 nargv[arg] = subst(nargv[arg], "VERSION", Version); 580 } 581 nargv[arg] = NULL; 582 } 583 584 void 585 command_Free(int argc, char **argv) 586 { 587 while (argc) { 588 free(*argv); 589 argc--; 590 argv++; 591 } 592 } 593 594 static int 595 ShellCommand(struct cmdargs const *arg, int bg) 596 { 597 const char *shell; 598 pid_t shpid, pid; 599 600 #ifdef SHELL_ONLY_INTERACTIVELY 601 /* we're only allowed to shell when we run ppp interactively */ 602 if (arg->prompt && arg->prompt->owner) { 603 log_Printf(LogWARN, "Can't start a shell from a network connection\n"); 604 return 1; 605 } 606 #endif 607 608 if (arg->argc == arg->argn) { 609 if (!arg->prompt) { 610 log_Printf(LogWARN, "Can't start an interactive shell from" 611 " a config file\n"); 612 return 1; 613 } else if (arg->prompt->owner) { 614 log_Printf(LogWARN, "Can't start an interactive shell from" 615 " a socket connection\n"); 616 return 1; 617 } else if (bg) { 618 log_Printf(LogWARN, "Can only start an interactive shell in" 619 " the foreground mode\n"); 620 return 1; 621 } 622 } 623 624 pid = getpid(); 625 if ((shpid = fork()) == 0) { 626 int i, fd; 627 628 if ((shell = getenv("SHELL")) == 0) 629 shell = _PATH_BSHELL; 630 631 timer_TermService(); 632 633 if (arg->prompt) 634 fd = arg->prompt->fd_out; 635 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { 636 log_Printf(LogALERT, "Failed to open %s: %s\n", 637 _PATH_DEVNULL, strerror(errno)); 638 exit(1); 639 } 640 dup2(fd, STDIN_FILENO); 641 dup2(fd, STDOUT_FILENO); 642 dup2(fd, STDERR_FILENO); 643 for (i = getdtablesize(); i > STDERR_FILENO; i--) 644 fcntl(i, F_SETFD, 1); 645 646 #ifndef NOSUID 647 setuid(ID0realuid()); 648 #endif 649 if (arg->argc > arg->argn) { 650 /* substitute pseudo args */ 651 char *argv[MAXARGS]; 652 int argc = arg->argc - arg->argn; 653 654 if (argc >= sizeof argv / sizeof argv[0]) { 655 argc = sizeof argv / sizeof argv[0] - 1; 656 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc); 657 } 658 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid); 659 if (bg) { 660 pid_t p; 661 662 p = getpid(); 663 if (daemon(1, 1) == -1) { 664 log_Printf(LogERROR, "%ld: daemon: %s\n", (long)p, strerror(errno)); 665 exit(1); 666 } 667 } else if (arg->prompt) 668 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]); 669 execvp(argv[0], argv); 670 } else { 671 if (arg->prompt) 672 printf("ppp: Pausing until %s finishes\n", shell); 673 prompt_TtyOldMode(arg->prompt); 674 execl(shell, shell, (char *)NULL); 675 } 676 677 log_Printf(LogWARN, "exec() of %s failed: %s\n", 678 arg->argc > arg->argn ? arg->argv[arg->argn] : shell, 679 strerror(errno)); 680 _exit(255); 681 } 682 683 if (shpid == (pid_t)-1) 684 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno)); 685 else { 686 int status; 687 waitpid(shpid, &status, 0); 688 } 689 690 if (arg->prompt && !arg->prompt->owner) 691 prompt_TtyCommandMode(arg->prompt); 692 693 return 0; 694 } 695 696 static int 697 BgShellCommand(struct cmdargs const *arg) 698 { 699 if (arg->argc == arg->argn) 700 return -1; 701 return ShellCommand(arg, 1); 702 } 703 704 static int 705 FgShellCommand(struct cmdargs const *arg) 706 { 707 return ShellCommand(arg, 0); 708 } 709 710 static int 711 ResolvCommand(struct cmdargs const *arg) 712 { 713 if (arg->argc == arg->argn + 1) { 714 if (!strcasecmp(arg->argv[arg->argn], "reload")) 715 ipcp_LoadDNS(&arg->bundle->ncp.ipcp); 716 else if (!strcasecmp(arg->argv[arg->argn], "restore")) 717 ipcp_RestoreDNS(&arg->bundle->ncp.ipcp); 718 else if (!strcasecmp(arg->argv[arg->argn], "rewrite")) 719 ipcp_WriteDNS(&arg->bundle->ncp.ipcp); 720 else if (!strcasecmp(arg->argv[arg->argn], "readonly")) 721 arg->bundle->ncp.ipcp.ns.writable = 0; 722 else if (!strcasecmp(arg->argv[arg->argn], "writable")) 723 arg->bundle->ncp.ipcp.ns.writable = 1; 724 else 725 return -1; 726 727 return 0; 728 } 729 730 return -1; 731 } 732 733 #ifndef NONAT 734 static struct cmdtab const NatCommands[] = 735 { 736 {"addr", NULL, nat_RedirectAddr, LOCAL_AUTH, 737 "static address translation", "nat addr [addr_local addr_alias]"}, 738 {"deny_incoming", NULL, NatOption, LOCAL_AUTH, 739 "stop incoming connections", "nat deny_incoming yes|no", 740 (const void *) PKT_ALIAS_DENY_INCOMING}, 741 {"enable", NULL, NatEnable, LOCAL_AUTH, 742 "enable NAT", "nat enable yes|no"}, 743 {"log", NULL, NatOption, LOCAL_AUTH, 744 "log NAT link creation", "nat log yes|no", 745 (const void *) PKT_ALIAS_LOG}, 746 {"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection", 747 "nat port proto localaddr:port[-port] aliasport[-aliasport]"}, 748 {"proto", NULL, nat_RedirectProto, LOCAL_AUTH, "protocol redirection", 749 "nat proto proto localIP [publicIP [remoteIP]]"}, 750 {"proxy", NULL, nat_ProxyRule, LOCAL_AUTH, 751 "proxy control", "nat proxy server host[:port] ..."}, 752 #ifndef NO_FW_PUNCH 753 {"punch_fw", NULL, nat_PunchFW, LOCAL_AUTH, 754 "firewall control", "nat punch_fw [base count]"}, 755 #endif 756 {"same_ports", NULL, NatOption, LOCAL_AUTH, 757 "try to leave port numbers unchanged", "nat same_ports yes|no", 758 (const void *) PKT_ALIAS_SAME_PORTS}, 759 {"target", NULL, nat_SetTarget, LOCAL_AUTH, 760 "Default address for incoming connections", "nat target addr" }, 761 {"unregistered_only", NULL, NatOption, LOCAL_AUTH, 762 "translate unregistered (private) IP address space only", 763 "nat unregistered_only yes|no", 764 (const void *) PKT_ALIAS_UNREGISTERED_ONLY}, 765 {"use_sockets", NULL, NatOption, LOCAL_AUTH, 766 "allocate host sockets", "nat use_sockets yes|no", 767 (const void *) PKT_ALIAS_USE_SOCKETS}, 768 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 769 "Display this message", "nat help|? [command]", NatCommands}, 770 {NULL, NULL, NULL}, 771 }; 772 #endif 773 774 static struct cmdtab const AllowCommands[] = { 775 {"modes", "mode", AllowModes, LOCAL_AUTH, 776 "Only allow certain ppp modes", "allow modes mode..."}, 777 {"users", "user", AllowUsers, LOCAL_AUTH, 778 "Only allow ppp access to certain users", "allow users logname..."}, 779 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 780 "Display this message", "allow help|? [command]", AllowCommands}, 781 {NULL, NULL, NULL}, 782 }; 783 784 static struct cmdtab const IfaceCommands[] = 785 { 786 {"add", NULL, IfaceAddCommand, LOCAL_AUTH, 787 "Add iface address", "iface add addr[/bits| mask] peer", NULL}, 788 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH, 789 "Add or change an iface address", "iface add! addr[/bits| mask] peer", 790 (void *)1}, 791 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH, 792 "Clear iface address(es)", "iface clear [INET | INET6]"}, 793 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH, 794 "Delete iface address", "iface delete addr", NULL}, 795 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH, 796 "Delete iface address", "iface delete addr", (void *)1}, 797 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH, 798 "Delete iface address", "iface delete addr", (void *)1}, 799 {"show", NULL, iface_Show, LOCAL_AUTH, 800 "Show iface address(es)", "iface show"}, 801 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 802 "Display this message", "nat help|? [command]", IfaceCommands}, 803 {NULL, NULL, NULL}, 804 }; 805 806 static struct cmdtab const Commands[] = { 807 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 808 "accept option request", "accept option .."}, 809 {"add", NULL, AddCommand, LOCAL_AUTH, 810 "add route", "add dest mask gateway", NULL}, 811 {NULL, "add!", AddCommand, LOCAL_AUTH, 812 "add or change route", "add! dest mask gateway", (void *)1}, 813 {"allow", "auth", RunListCommand, LOCAL_AUTH, 814 "Allow ppp access", "allow users|modes ....", AllowCommands}, 815 {"bg", "!bg", BgShellCommand, LOCAL_AUTH, 816 "Run a background command", "[!]bg command"}, 817 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT, 818 "Clear throughput statistics", 819 "clear ipcp|ipv6cp|physical [current|overall|peak]..."}, 820 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX, 821 "Clone a link", "clone newname..."}, 822 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT, 823 "Close an FSM", "close [lcp|ccp]"}, 824 {"delete", NULL, DeleteCommand, LOCAL_AUTH, 825 "delete route", "delete dest", NULL}, 826 {NULL, "delete!", DeleteCommand, LOCAL_AUTH, 827 "delete a route if it exists", "delete! dest", (void *)1}, 828 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 829 "Deny option request", "deny option .."}, 830 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT, 831 "Dial and login", "dial|call [system ...]", NULL}, 832 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 833 "Disable option", "disable option .."}, 834 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT, 835 "Generate a down event", "down [ccp|lcp]"}, 836 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 837 "Enable option", "enable option .."}, 838 {"ident", NULL, IdentCommand, LOCAL_AUTH | LOCAL_CX, 839 "Set the link identity", "ident text..."}, 840 {"iface", "interface", RunListCommand, LOCAL_AUTH, 841 "interface control", "iface option ...", IfaceCommands}, 842 {"link", "datalink", LinkCommand, LOCAL_AUTH, 843 "Link specific commands", "link name command ..."}, 844 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT, 845 "Load settings", "load [system ...]"}, 846 {"log", NULL, LogCommand, LOCAL_AUTH | LOCAL_CX_OPT, 847 "log information", "log word ..."}, 848 #ifndef NONAT 849 {"nat", "alias", RunListCommand, LOCAL_AUTH, 850 "NAT control", "nat option yes|no", NatCommands}, 851 #endif 852 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT, 853 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1}, 854 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH, 855 "Password for manipulation", "passwd LocalPassword"}, 856 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 857 "Quit PPP program", "quit|bye [all]"}, 858 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX, 859 "Remove a link", "remove"}, 860 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX, 861 "Rename a link", "rename name"}, 862 {"resolv", NULL, ResolvCommand, LOCAL_AUTH, 863 "Manipulate resolv.conf", "resolv readonly|reload|restore|rewrite|writable"}, 864 {"save", NULL, SaveCommand, LOCAL_AUTH, 865 "Save settings", "save"}, 866 {"sendident", NULL, SendIdentification, LOCAL_AUTH | LOCAL_CX, 867 "Transmit the link identity", "sendident"}, 868 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT, 869 "Set parameters", "set[up] var value"}, 870 {"shell", "!", FgShellCommand, LOCAL_AUTH, 871 "Run a subshell", "shell|! [sh command]"}, 872 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT, 873 "Show status and stats", "show var"}, 874 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX, 875 "Enter terminal mode", "term"}, 876 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 877 "Display this message", "help|? [command]", Commands}, 878 {NULL, NULL, NULL}, 879 }; 880 881 static int 882 ShowEscape(struct cmdargs const *arg) 883 { 884 if (arg->cx->physical->async.cfg.EscMap[32]) { 885 int code, bit; 886 const char *sep = ""; 887 888 for (code = 0; code < 32; code++) 889 if (arg->cx->physical->async.cfg.EscMap[code]) 890 for (bit = 0; bit < 8; bit++) 891 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) { 892 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit); 893 sep = ", "; 894 } 895 prompt_Printf(arg->prompt, "\n"); 896 } 897 return 0; 898 } 899 900 static int 901 ShowTimerList(struct cmdargs const *arg) 902 { 903 timer_Show(0, arg->prompt); 904 return 0; 905 } 906 907 static int 908 ShowStopped(struct cmdargs const *arg) 909 { 910 prompt_Printf(arg->prompt, " Stopped Timer: LCP: "); 911 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load) 912 prompt_Printf(arg->prompt, "Disabled"); 913 else 914 prompt_Printf(arg->prompt, "%ld secs", 915 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS); 916 917 prompt_Printf(arg->prompt, ", CCP: "); 918 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load) 919 prompt_Printf(arg->prompt, "Disabled"); 920 else 921 prompt_Printf(arg->prompt, "%ld secs", 922 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS); 923 924 prompt_Printf(arg->prompt, "\n"); 925 926 return 0; 927 } 928 929 static int 930 ShowVersion(struct cmdargs const *arg) 931 { 932 prompt_Printf(arg->prompt, "PPP Version %s - %s\n", Version, __DATE__); 933 return 0; 934 } 935 936 static int 937 ShowProtocolStats(struct cmdargs const *arg) 938 { 939 struct link *l = command_ChooseLink(arg); 940 941 prompt_Printf(arg->prompt, "%s:\n", l->name); 942 link_ReportProtocolStatus(l, arg->prompt); 943 return 0; 944 } 945 946 static struct cmdtab const ShowCommands[] = { 947 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH, 948 "bundle details", "show bundle"}, 949 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT, 950 "CCP status", "show cpp"}, 951 {"compress", NULL, sl_Show, LOCAL_AUTH, 952 "VJ compression stats", "show compress"}, 953 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX, 954 "escape characters", "show escape"}, 955 {"filter", NULL, filter_Show, LOCAL_AUTH, 956 "packet filters", "show filter [in|out|dial|alive]"}, 957 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX, 958 "HDLC errors", "show hdlc"}, 959 {"iface", "interface", iface_Show, LOCAL_AUTH, 960 "Interface status", "show iface"}, 961 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH, 962 "IPCP status", "show ipcp"}, 963 #ifndef NOINET6 964 {"ipv6cp", NULL, ipv6cp_Show, LOCAL_AUTH, 965 "IPV6CP status", "show ipv6cp"}, 966 #endif 967 {"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT, 968 "Protocol layers", "show layers"}, 969 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX, 970 "LCP status", "show lcp"}, 971 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX, 972 "(high-level) link info", "show link"}, 973 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH, 974 "available link names", "show links"}, 975 {"log", NULL, log_ShowLevel, LOCAL_AUTH, 976 "log levels", "show log"}, 977 {"mem", NULL, mbuf_Show, LOCAL_AUTH, 978 "mbuf allocations", "show mem"}, 979 {"ncp", NULL, ncp_Show, LOCAL_AUTH, 980 "NCP status", "show ncp"}, 981 {"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX, 982 "(low-level) link info", "show physical"}, 983 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH, 984 "multilink setup", "show mp"}, 985 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT, 986 "protocol summary", "show proto"}, 987 {"route", NULL, route_Show, LOCAL_AUTH, 988 "routing table", "show route"}, 989 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX, 990 "STOPPED timeout", "show stopped"}, 991 {"timers", NULL, ShowTimerList, LOCAL_AUTH, 992 "alarm timers", "show timers"}, 993 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 994 "version string", "show version"}, 995 {"who", NULL, log_ShowWho, LOCAL_AUTH, 996 "client list", "show who"}, 997 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 998 "Display this message", "show help|? [command]", ShowCommands}, 999 {NULL, NULL, NULL}, 1000 }; 1001 1002 static struct cmdtab const * 1003 FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch) 1004 { 1005 int nmatch; 1006 int len; 1007 struct cmdtab const *found; 1008 1009 found = NULL; 1010 len = strlen(str); 1011 nmatch = 0; 1012 while (cmds->func) { 1013 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) { 1014 if (cmds->name[len] == '\0') { 1015 *pmatch = 1; 1016 return cmds; 1017 } 1018 nmatch++; 1019 found = cmds; 1020 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) { 1021 if (cmds->alias[len] == '\0') { 1022 *pmatch = 1; 1023 return cmds; 1024 } 1025 nmatch++; 1026 found = cmds; 1027 } 1028 cmds++; 1029 } 1030 *pmatch = nmatch; 1031 return found; 1032 } 1033 1034 static const char * 1035 mkPrefix(int argc, char const *const *argv, char *tgt, int sz) 1036 { 1037 int f, tlen, len; 1038 1039 tlen = 0; 1040 for (f = 0; f < argc && tlen < sz - 2; f++) { 1041 if (f) 1042 tgt[tlen++] = ' '; 1043 len = strlen(argv[f]); 1044 if (len > sz - tlen - 1) 1045 len = sz - tlen - 1; 1046 strncpy(tgt+tlen, argv[f], len); 1047 tlen += len; 1048 } 1049 tgt[tlen] = '\0'; 1050 return tgt; 1051 } 1052 1053 static int 1054 FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn, 1055 char const *const *argv, struct prompt *prompt, struct datalink *cx) 1056 { 1057 struct cmdtab const *cmd; 1058 int val = 1; 1059 int nmatch; 1060 struct cmdargs arg; 1061 char prefix[100]; 1062 1063 cmd = FindCommand(cmds, argv[argn], &nmatch); 1064 if (nmatch > 1) 1065 log_Printf(LogWARN, "%s: Ambiguous command\n", 1066 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1067 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) { 1068 if ((cmd->lauth & LOCAL_CX) && !cx) 1069 /* We've got no context, but we require it */ 1070 cx = bundle2datalink(bundle, NULL); 1071 1072 if ((cmd->lauth & LOCAL_CX) && !cx) 1073 log_Printf(LogWARN, "%s: No context (use the `link' command)\n", 1074 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1075 else { 1076 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1077 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n", 1078 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name); 1079 cx = NULL; 1080 } 1081 arg.cmdtab = cmds; 1082 arg.cmd = cmd; 1083 arg.argc = argc; 1084 arg.argn = argn+1; 1085 arg.argv = argv; 1086 arg.bundle = bundle; 1087 arg.cx = cx; 1088 arg.prompt = prompt; 1089 val = (*cmd->func) (&arg); 1090 } 1091 } else 1092 log_Printf(LogWARN, "%s: Invalid command\n", 1093 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1094 1095 if (val == -1) 1096 log_Printf(LogWARN, "usage: %s\n", cmd->syntax); 1097 else if (val) 1098 log_Printf(LogWARN, "%s: Failed %d\n", 1099 mkPrefix(argn+1, argv, prefix, sizeof prefix), val); 1100 1101 return val; 1102 } 1103 1104 int 1105 command_Expand_Interpret(char *buff, int nb, char *argv[MAXARGS], int offset) 1106 { 1107 char buff2[LINE_LEN-offset]; 1108 1109 InterpretArg(buff, buff2); 1110 strncpy(buff, buff2, LINE_LEN - offset - 1); 1111 buff[LINE_LEN - offset - 1] = '\0'; 1112 1113 return command_Interpret(buff, nb, argv); 1114 } 1115 1116 int 1117 command_Interpret(char *buff, int nb, char *argv[MAXARGS]) 1118 { 1119 char *cp; 1120 1121 if (nb > 0) { 1122 cp = buff + strcspn(buff, "\r\n"); 1123 if (cp) 1124 *cp = '\0'; 1125 return MakeArgs(buff, argv, MAXARGS, PARSE_REDUCE); 1126 } 1127 return 0; 1128 } 1129 1130 static int 1131 arghidden(int argc, char const *const *argv, int n) 1132 { 1133 /* Is arg n of the given command to be hidden from the log ? */ 1134 1135 /* set authkey xxxxx */ 1136 /* set key xxxxx */ 1137 if (n == 2 && !strncasecmp(argv[0], "se", 2) && 1138 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2))) 1139 return 1; 1140 1141 /* passwd xxxxx */ 1142 if (n == 1 && !strncasecmp(argv[0], "p", 1)) 1143 return 1; 1144 1145 /* set server port xxxxx .... */ 1146 if (n == 3 && !strncasecmp(argv[0], "se", 2) && 1147 !strncasecmp(argv[1], "se", 2)) 1148 return 1; 1149 1150 return 0; 1151 } 1152 1153 void 1154 command_Run(struct bundle *bundle, int argc, char const *const *argv, 1155 struct prompt *prompt, const char *label, struct datalink *cx) 1156 { 1157 if (argc > 0) { 1158 if (log_IsKept(LogCOMMAND)) { 1159 char buf[LINE_LEN]; 1160 int f, n; 1161 1162 if (label) { 1163 strncpy(buf, label, sizeof buf - 3); 1164 buf[sizeof buf - 3] = '\0'; 1165 strcat(buf, ": "); 1166 n = strlen(buf); 1167 } else { 1168 *buf = '\0'; 1169 n = 0; 1170 } 1171 buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */ 1172 1173 for (f = 0; f < argc; f++) { 1174 if (n < sizeof buf - 1 && f) 1175 buf[n++] = ' '; 1176 if (arghidden(argc, argv, f)) 1177 strncpy(buf+n, "********", sizeof buf - n - 1); 1178 else 1179 strncpy(buf+n, argv[f], sizeof buf - n - 1); 1180 n += strlen(buf+n); 1181 } 1182 log_Printf(LogCOMMAND, "%s\n", buf); 1183 } 1184 FindExec(bundle, Commands, argc, 0, argv, prompt, cx); 1185 } 1186 } 1187 1188 int 1189 command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt, 1190 const char *label) 1191 { 1192 int argc; 1193 char *argv[MAXARGS]; 1194 1195 if ((argc = command_Expand_Interpret(buff, nb, argv, 0)) < 0) 1196 return 0; 1197 1198 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL); 1199 return 1; 1200 } 1201 1202 static int 1203 ShowCommand(struct cmdargs const *arg) 1204 { 1205 if (!arg->prompt) 1206 log_Printf(LogWARN, "show: Cannot show without a prompt\n"); 1207 else if (arg->argc > arg->argn) 1208 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv, 1209 arg->prompt, arg->cx); 1210 else 1211 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n"); 1212 1213 return 0; 1214 } 1215 1216 static int 1217 TerminalCommand(struct cmdargs const *arg) 1218 { 1219 if (!arg->prompt) { 1220 log_Printf(LogWARN, "term: Need a prompt\n"); 1221 return 1; 1222 } 1223 1224 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) { 1225 prompt_Printf(arg->prompt, "LCP state is [%s]\n", 1226 State2Nam(arg->cx->physical->link.lcp.fsm.state)); 1227 return 1; 1228 } 1229 1230 datalink_Up(arg->cx, 0, 0); 1231 prompt_TtyTermMode(arg->prompt, arg->cx); 1232 return 0; 1233 } 1234 1235 static int 1236 QuitCommand(struct cmdargs const *arg) 1237 { 1238 if (!arg->prompt || prompt_IsController(arg->prompt) || 1239 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") && 1240 (arg->prompt->auth & LOCAL_AUTH))) 1241 Cleanup(EX_NORMAL); 1242 if (arg->prompt) 1243 prompt_Destroy(arg->prompt, 1); 1244 1245 return 0; 1246 } 1247 1248 static int 1249 OpenCommand(struct cmdargs const *arg) 1250 { 1251 if (arg->argc == arg->argn) 1252 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 1253 else if (arg->argc == arg->argn + 1) { 1254 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1255 struct datalink *cx = arg->cx ? 1256 arg->cx : bundle2datalink(arg->bundle, NULL); 1257 if (cx) { 1258 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 1259 fsm_Reopen(&cx->physical->link.lcp.fsm); 1260 else 1261 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1); 1262 } else 1263 log_Printf(LogWARN, "open lcp: You must specify a link\n"); 1264 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1265 struct fsm *fp; 1266 1267 fp = &command_ChooseLink(arg)->ccp.fsm; 1268 if (fp->link->lcp.fsm.state != ST_OPENED) 1269 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n"); 1270 else if (fp->state == ST_OPENED) 1271 fsm_Reopen(fp); 1272 else { 1273 fp->open_mode = 0; /* Not passive any more */ 1274 if (fp->state == ST_STOPPED) { 1275 fsm_Down(fp); 1276 fsm_Up(fp); 1277 } else { 1278 fsm_Up(fp); 1279 fsm_Open(fp); 1280 } 1281 } 1282 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) { 1283 if (arg->cx) 1284 log_Printf(LogWARN, "open ipcp: You need not specify a link\n"); 1285 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 1286 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm); 1287 else 1288 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1); 1289 } else 1290 return -1; 1291 } else 1292 return -1; 1293 1294 return 0; 1295 } 1296 1297 static int 1298 CloseCommand(struct cmdargs const *arg) 1299 { 1300 if (arg->argc == arg->argn) 1301 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN); 1302 else if (arg->argc == arg->argn + 1) { 1303 if (!strcasecmp(arg->argv[arg->argn], "lcp")) 1304 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP); 1305 else if (!strcasecmp(arg->argv[arg->argn], "ccp") || 1306 !strcasecmp(arg->argv[arg->argn], "ccp!")) { 1307 struct fsm *fp; 1308 1309 fp = &command_ChooseLink(arg)->ccp.fsm; 1310 if (fp->state == ST_OPENED) { 1311 fsm_Close(fp); 1312 if (arg->argv[arg->argn][3] == '!') 1313 fp->open_mode = 0; /* Stay ST_CLOSED */ 1314 else 1315 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */ 1316 } 1317 } else 1318 return -1; 1319 } else 1320 return -1; 1321 1322 return 0; 1323 } 1324 1325 static int 1326 DownCommand(struct cmdargs const *arg) 1327 { 1328 if (arg->argc == arg->argn) { 1329 if (arg->cx) 1330 datalink_Down(arg->cx, CLOSE_STAYDOWN); 1331 else 1332 bundle_Down(arg->bundle, CLOSE_STAYDOWN); 1333 } else if (arg->argc == arg->argn + 1) { 1334 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1335 if (arg->cx) 1336 datalink_Down(arg->cx, CLOSE_LCP); 1337 else 1338 bundle_Down(arg->bundle, CLOSE_LCP); 1339 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1340 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm : 1341 &arg->bundle->ncp.mp.link.ccp.fsm; 1342 fsm2initial(fp); 1343 } else 1344 return -1; 1345 } else 1346 return -1; 1347 1348 return 0; 1349 } 1350 1351 static int 1352 SetModemSpeed(struct cmdargs const *arg) 1353 { 1354 long speed; 1355 char *end; 1356 1357 if (arg->argc > arg->argn && *arg->argv[arg->argn]) { 1358 if (arg->argc > arg->argn+1) { 1359 log_Printf(LogWARN, "SetModemSpeed: Too many arguments\n"); 1360 return -1; 1361 } 1362 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) { 1363 physical_SetSync(arg->cx->physical); 1364 return 0; 1365 } 1366 end = NULL; 1367 speed = strtol(arg->argv[arg->argn], &end, 10); 1368 if (*end) { 1369 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", 1370 arg->argv[arg->argn]); 1371 return -1; 1372 } 1373 if (physical_SetSpeed(arg->cx->physical, speed)) 1374 return 0; 1375 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]); 1376 } else 1377 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n"); 1378 1379 return -1; 1380 } 1381 1382 static int 1383 SetStoppedTimeout(struct cmdargs const *arg) 1384 { 1385 struct link *l = &arg->cx->physical->link; 1386 1387 l->lcp.fsm.StoppedTimer.load = 0; 1388 l->ccp.fsm.StoppedTimer.load = 0; 1389 if (arg->argc <= arg->argn+2) { 1390 if (arg->argc > arg->argn) { 1391 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS; 1392 if (arg->argc > arg->argn+1) 1393 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS; 1394 } 1395 return 0; 1396 } 1397 return -1; 1398 } 1399 1400 static int 1401 SetServer(struct cmdargs const *arg) 1402 { 1403 int res = -1; 1404 1405 if (arg->argc > arg->argn && arg->argc < arg->argn+4) { 1406 const char *port, *passwd, *mask; 1407 int mlen; 1408 1409 /* What's what ? */ 1410 port = arg->argv[arg->argn]; 1411 if (arg->argc == arg->argn + 2) { 1412 passwd = arg->argv[arg->argn+1]; 1413 mask = NULL; 1414 } else if (arg->argc == arg->argn + 3) { 1415 passwd = arg->argv[arg->argn+1]; 1416 mask = arg->argv[arg->argn+2]; 1417 mlen = strlen(mask); 1418 if (mlen == 0 || mlen > 4 || strspn(mask, "01234567") != mlen || 1419 (mlen == 4 && *mask != '0')) { 1420 log_Printf(LogWARN, "%s %s: %s: Invalid mask\n", 1421 arg->argv[arg->argn - 2], arg->argv[arg->argn - 1], mask); 1422 return -1; 1423 } 1424 } else if (arg->argc != arg->argn + 1) 1425 return -1; 1426 else if (strcasecmp(port, "none") == 0) { 1427 if (server_Clear(arg->bundle)) 1428 log_Printf(LogPHASE, "Disabled server socket\n"); 1429 return 0; 1430 } else if (strcasecmp(port, "open") == 0) { 1431 switch (server_Reopen(arg->bundle)) { 1432 case SERVER_OK: 1433 return 0; 1434 case SERVER_FAILED: 1435 log_Printf(LogWARN, "Failed to reopen server port\n"); 1436 return 1; 1437 case SERVER_UNSET: 1438 log_Printf(LogWARN, "Cannot reopen unset server socket\n"); 1439 return 1; 1440 default: 1441 break; 1442 } 1443 return -1; 1444 } else if (strcasecmp(port, "closed") == 0) { 1445 if (server_Close(arg->bundle)) 1446 log_Printf(LogPHASE, "Closed server socket\n"); 1447 else 1448 log_Printf(LogWARN, "Server socket not open\n"); 1449 1450 return 0; 1451 } else 1452 return -1; 1453 1454 strncpy(server.cfg.passwd, passwd, sizeof server.cfg.passwd - 1); 1455 server.cfg.passwd[sizeof server.cfg.passwd - 1] = '\0'; 1456 1457 if (*port == '/') { 1458 mode_t imask; 1459 char *ptr, name[LINE_LEN + 12]; 1460 1461 if (mask == NULL) 1462 imask = (mode_t)-1; 1463 else for (imask = mlen = 0; mask[mlen]; mlen++) 1464 imask = (imask * 8) + mask[mlen] - '0'; 1465 1466 ptr = strstr(port, "%d"); 1467 if (ptr) { 1468 snprintf(name, sizeof name, "%.*s%d%s", 1469 (int)(ptr - port), port, arg->bundle->unit, ptr + 2); 1470 port = name; 1471 } 1472 res = server_LocalOpen(arg->bundle, port, imask); 1473 } else { 1474 int iport, add = 0; 1475 1476 if (mask != NULL) 1477 return -1; 1478 1479 if (*port == '+') { 1480 port++; 1481 add = 1; 1482 } 1483 if (strspn(port, "0123456789") != strlen(port)) { 1484 struct servent *s; 1485 1486 if ((s = getservbyname(port, "tcp")) == NULL) { 1487 iport = 0; 1488 log_Printf(LogWARN, "%s: Invalid port or service\n", port); 1489 } else 1490 iport = ntohs(s->s_port); 1491 } else 1492 iport = atoi(port); 1493 1494 if (iport) { 1495 if (add) 1496 iport += arg->bundle->unit; 1497 res = server_TcpOpen(arg->bundle, iport); 1498 } else 1499 res = -1; 1500 } 1501 } 1502 1503 return res; 1504 } 1505 1506 static int 1507 SetEscape(struct cmdargs const *arg) 1508 { 1509 int code; 1510 int argc = arg->argc - arg->argn; 1511 char const *const *argv = arg->argv + arg->argn; 1512 1513 for (code = 0; code < 33; code++) 1514 arg->cx->physical->async.cfg.EscMap[code] = 0; 1515 1516 while (argc-- > 0) { 1517 sscanf(*argv++, "%x", &code); 1518 code &= 0xff; 1519 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7)); 1520 arg->cx->physical->async.cfg.EscMap[32] = 1; 1521 } 1522 return 0; 1523 } 1524 1525 static int 1526 SetInterfaceAddr(struct cmdargs const *arg) 1527 { 1528 struct ncp *ncp = &arg->bundle->ncp; 1529 struct ncpaddr ncpaddr; 1530 const char *hisaddr; 1531 1532 if (arg->argc > arg->argn + 4) 1533 return -1; 1534 1535 hisaddr = NULL; 1536 memset(&ncp->ipcp.cfg.my_range, '\0', sizeof ncp->ipcp.cfg.my_range); 1537 memset(&ncp->ipcp.cfg.peer_range, '\0', sizeof ncp->ipcp.cfg.peer_range); 1538 ncp->ipcp.cfg.HaveTriggerAddress = 0; 1539 ncp->ipcp.cfg.netmask.s_addr = INADDR_ANY; 1540 iplist_reset(&ncp->ipcp.cfg.peer_list); 1541 1542 if (arg->argc > arg->argn) { 1543 if (!ncprange_aton(&ncp->ipcp.cfg.my_range, ncp, arg->argv[arg->argn])) 1544 return 1; 1545 if (arg->argc > arg->argn+1) { 1546 hisaddr = arg->argv[arg->argn+1]; 1547 if (arg->argc > arg->argn+2) { 1548 ncp->ipcp.ifmask = ncp->ipcp.cfg.netmask = 1549 GetIpAddr(arg->argv[arg->argn+2]); 1550 if (arg->argc > arg->argn+3) { 1551 ncp->ipcp.cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]); 1552 ncp->ipcp.cfg.HaveTriggerAddress = 1; 1553 } 1554 } 1555 } 1556 } 1557 1558 /* 0.0.0.0 means any address (0 bits) */ 1559 ncpaddr_getip4(&ncpaddr, &ncp->ipcp.my_ip); 1560 ncprange_getaddr(&ncp->ipcp.cfg.my_range, &ncpaddr); 1561 if (ncp->ipcp.my_ip.s_addr == INADDR_ANY) 1562 ncprange_setwidth(&ncp->ipcp.cfg.my_range, 0); 1563 bundle_AdjustFilters(arg->bundle, &ncpaddr, NULL); 1564 1565 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr, 1566 arg->bundle->phys_type.all & PHYS_AUTO)) 1567 return 4; 1568 1569 return 0; 1570 } 1571 1572 static int 1573 SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq, 1574 u_int *maxtrm, int def) 1575 { 1576 if (argc == 0) { 1577 *timeout = DEF_FSMRETRY; 1578 *maxreq = def; 1579 if (maxtrm != NULL) 1580 *maxtrm = def; 1581 } else { 1582 long l = atol(argv[0]); 1583 1584 if (l < MIN_FSMRETRY) { 1585 log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n", 1586 l, MIN_FSMRETRY); 1587 return 1; 1588 } else 1589 *timeout = l; 1590 1591 if (argc > 1) { 1592 l = atol(argv[1]); 1593 if (l < 1) { 1594 log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l); 1595 l = 1; 1596 } 1597 *maxreq = l; 1598 1599 if (argc > 2 && maxtrm != NULL) { 1600 l = atol(argv[2]); 1601 if (l < 1) { 1602 log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l); 1603 l = 1; 1604 } 1605 *maxtrm = l; 1606 } 1607 } 1608 } 1609 1610 return 0; 1611 } 1612 1613 static int 1614 SetVariable(struct cmdargs const *arg) 1615 { 1616 long long_val, param = (long)arg->cmd->args; 1617 int mode, dummyint, f, first, res; 1618 u_short *change; 1619 const char *argp; 1620 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 1621 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 1622 struct in_addr *ipaddr; 1623 struct ncpaddr ncpaddr[2]; 1624 1625 if (arg->argc > arg->argn) 1626 argp = arg->argv[arg->argn]; 1627 else 1628 argp = ""; 1629 1630 res = 0; 1631 1632 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 1633 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n", 1634 arg->cmd->name); 1635 return 1; 1636 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1637 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n", 1638 arg->cmd->name, cx->name); 1639 cx = NULL; 1640 } 1641 1642 switch (param) { 1643 case VAR_AUTHKEY: 1644 strncpy(arg->bundle->cfg.auth.key, argp, 1645 sizeof arg->bundle->cfg.auth.key - 1); 1646 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0'; 1647 break; 1648 1649 case VAR_AUTHNAME: 1650 switch (bundle_Phase(arg->bundle)) { 1651 default: 1652 log_Printf(LogWARN, "Altering authname while at phase %s\n", 1653 bundle_PhaseName(arg->bundle)); 1654 /* drop through */ 1655 case PHASE_DEAD: 1656 case PHASE_ESTABLISH: 1657 strncpy(arg->bundle->cfg.auth.name, argp, 1658 sizeof arg->bundle->cfg.auth.name - 1); 1659 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0'; 1660 break; 1661 } 1662 break; 1663 1664 case VAR_AUTOLOAD: 1665 if (arg->argc == arg->argn + 3) { 1666 int v1, v2, v3; 1667 char *end; 1668 1669 v1 = strtol(arg->argv[arg->argn], &end, 0); 1670 if (v1 < 0 || *end) { 1671 log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n", 1672 arg->argv[arg->argn]); 1673 res = 1; 1674 break; 1675 } 1676 1677 v2 = strtol(arg->argv[arg->argn + 1], &end, 0); 1678 if (v2 < 0 || *end) { 1679 log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n", 1680 arg->argv[arg->argn + 1]); 1681 res = 1; 1682 break; 1683 } 1684 if (v2 < v1) { 1685 v3 = v1; 1686 v1 = v2; 1687 v2 = v3; 1688 } 1689 1690 v3 = strtol(arg->argv[arg->argn + 2], &end, 0); 1691 if (v3 <= 0 || *end) { 1692 log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n", 1693 arg->argv[arg->argn + 2]); 1694 res = 1; 1695 break; 1696 } 1697 1698 arg->bundle->ncp.mp.cfg.autoload.min = v1; 1699 arg->bundle->ncp.mp.cfg.autoload.max = v2; 1700 arg->bundle->ncp.mp.cfg.autoload.period = v3; 1701 mp_RestartAutoloadTimer(&arg->bundle->ncp.mp); 1702 } else { 1703 log_Printf(LogWARN, "Set autoload requires three arguments\n"); 1704 res = 1; 1705 } 1706 break; 1707 1708 case VAR_DIAL: 1709 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1); 1710 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0'; 1711 break; 1712 1713 case VAR_LOGIN: 1714 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1); 1715 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0'; 1716 break; 1717 1718 case VAR_WINSIZE: 1719 if (arg->argc > arg->argn) { 1720 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]); 1721 if (l->ccp.cfg.deflate.out.winsize < 8 || 1722 l->ccp.cfg.deflate.out.winsize > 15) { 1723 log_Printf(LogWARN, "%d: Invalid outgoing window size\n", 1724 l->ccp.cfg.deflate.out.winsize); 1725 l->ccp.cfg.deflate.out.winsize = 15; 1726 } 1727 if (arg->argc > arg->argn+1) { 1728 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]); 1729 if (l->ccp.cfg.deflate.in.winsize < 8 || 1730 l->ccp.cfg.deflate.in.winsize > 15) { 1731 log_Printf(LogWARN, "%d: Invalid incoming window size\n", 1732 l->ccp.cfg.deflate.in.winsize); 1733 l->ccp.cfg.deflate.in.winsize = 15; 1734 } 1735 } else 1736 l->ccp.cfg.deflate.in.winsize = 0; 1737 } else { 1738 log_Printf(LogWARN, "No window size specified\n"); 1739 res = 1; 1740 } 1741 break; 1742 1743 #ifndef NODES 1744 case VAR_MPPE: 1745 if (arg->argc > arg->argn + 2) { 1746 res = -1; 1747 break; 1748 } 1749 1750 if (arg->argc == arg->argn) { 1751 l->ccp.cfg.mppe.keybits = 0; 1752 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1753 l->ccp.cfg.mppe.required = 0; 1754 break; 1755 } 1756 1757 if (!strcmp(argp, "*")) 1758 long_val = 0; 1759 else { 1760 long_val = atol(argp); 1761 if (long_val != 40 && long_val != 56 && long_val != 128) { 1762 log_Printf(LogWARN, "%s: Invalid bits value\n", argp); 1763 res = -1; 1764 break; 1765 } 1766 } 1767 1768 if (arg->argc == arg->argn + 2) { 1769 if (!strcmp(arg->argv[arg->argn + 1], "*")) 1770 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1771 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateless")) 1772 l->ccp.cfg.mppe.state = MPPE_STATELESS; 1773 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateful")) 1774 l->ccp.cfg.mppe.state = MPPE_STATEFUL; 1775 else { 1776 log_Printf(LogWARN, "%s: Invalid state value\n", 1777 arg->argv[arg->argn + 1]); 1778 res = -1; 1779 break; 1780 } 1781 } else 1782 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1783 l->ccp.cfg.mppe.keybits = long_val; 1784 l->ccp.cfg.mppe.required = 1; 1785 break; 1786 #endif 1787 1788 case VAR_DEVICE: 1789 physical_SetDeviceList(cx->physical, arg->argc - arg->argn, 1790 arg->argv + arg->argn); 1791 break; 1792 1793 case VAR_ACCMAP: 1794 if (arg->argc > arg->argn) { 1795 u_long ulong_val; 1796 sscanf(argp, "%lx", &ulong_val); 1797 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val; 1798 } else { 1799 log_Printf(LogWARN, "No accmap specified\n"); 1800 res = 1; 1801 } 1802 break; 1803 1804 case VAR_MODE: 1805 mode = Nam2mode(argp); 1806 if (mode == PHYS_NONE || mode == PHYS_ALL) { 1807 log_Printf(LogWARN, "%s: Invalid mode\n", argp); 1808 res = -1; 1809 break; 1810 } 1811 bundle_SetMode(arg->bundle, cx, mode); 1812 break; 1813 1814 case VAR_MRRU: 1815 switch (bundle_Phase(arg->bundle)) { 1816 case PHASE_DEAD: 1817 break; 1818 case PHASE_ESTABLISH: 1819 /* Make sure none of our links are DATALINK_LCP or greater */ 1820 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 1821 log_Printf(LogWARN, "mrru: Only changable before LCP negotiations\n"); 1822 res = 1; 1823 break; 1824 } 1825 break; 1826 default: 1827 log_Printf(LogWARN, "mrru: Only changable at phase DEAD/ESTABLISH\n"); 1828 res = 1; 1829 break; 1830 } 1831 if (res != 0) 1832 break; 1833 long_val = atol(argp); 1834 if (long_val && long_val < MIN_MRU) { 1835 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU); 1836 res = 1; 1837 break; 1838 } else if (long_val > MAX_MRU) { 1839 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU); 1840 res = 1; 1841 break; 1842 } else 1843 arg->bundle->ncp.mp.cfg.mrru = long_val; 1844 break; 1845 1846 case VAR_MRU: 1847 long_val = 0; /* silence gcc */ 1848 change = NULL; /* silence gcc */ 1849 switch(arg->argc - arg->argn) { 1850 case 1: 1851 if (argp[strspn(argp, "0123456789")] != '\0') { 1852 res = -1; 1853 break; 1854 } 1855 /*FALLTHRU*/ 1856 case 0: 1857 long_val = atol(argp); 1858 change = &l->lcp.cfg.mru; 1859 if (long_val > l->lcp.cfg.max_mru) { 1860 log_Printf(LogWARN, "MRU %ld: too large - max set to %d\n", long_val, 1861 l->lcp.cfg.max_mru); 1862 res = 1; 1863 break; 1864 } 1865 break; 1866 case 2: 1867 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1868 res = -1; 1869 break; 1870 } 1871 long_val = atol(arg->argv[arg->argn + 1]); 1872 change = &l->lcp.cfg.max_mru; 1873 if (long_val > MAX_MRU) { 1874 log_Printf(LogWARN, "MRU %ld: too large - maximum is %d\n", long_val, 1875 MAX_MRU); 1876 res = 1; 1877 break; 1878 } 1879 break; 1880 default: 1881 res = -1; 1882 break; 1883 } 1884 if (res != 0) 1885 break; 1886 1887 if (long_val == 0) 1888 *change = 0; 1889 else if (long_val < MIN_MRU) { 1890 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU); 1891 res = 1; 1892 break; 1893 } else if (long_val > MAX_MRU) { 1894 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU); 1895 res = 1; 1896 break; 1897 } else 1898 *change = long_val; 1899 if (l->lcp.cfg.mru > *change) 1900 l->lcp.cfg.mru = *change; 1901 break; 1902 1903 case VAR_MTU: 1904 long_val = 0; /* silence gcc */ 1905 change = NULL; /* silence gcc */ 1906 switch(arg->argc - arg->argn) { 1907 case 1: 1908 if (argp[strspn(argp, "0123456789")] != '\0') { 1909 res = -1; 1910 break; 1911 } 1912 /*FALLTHRU*/ 1913 case 0: 1914 long_val = atol(argp); 1915 change = &l->lcp.cfg.mtu; 1916 if (long_val > l->lcp.cfg.max_mtu) { 1917 log_Printf(LogWARN, "MTU %ld: too large - max set to %d\n", long_val, 1918 l->lcp.cfg.max_mtu); 1919 res = 1; 1920 break; 1921 } 1922 break; 1923 case 2: 1924 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1925 res = -1; 1926 break; 1927 } 1928 long_val = atol(arg->argv[arg->argn + 1]); 1929 change = &l->lcp.cfg.max_mtu; 1930 if (long_val > MAX_MTU) { 1931 log_Printf(LogWARN, "MTU %ld: too large - maximum is %d\n", long_val, 1932 MAX_MTU); 1933 res = 1; 1934 break; 1935 } 1936 break; 1937 default: 1938 res = -1; 1939 break; 1940 } 1941 1942 if (res != 0) 1943 break; 1944 1945 if (long_val && long_val < MIN_MTU) { 1946 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU); 1947 res = 1; 1948 break; 1949 } else if (long_val > MAX_MTU) { 1950 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU); 1951 res = 1; 1952 break; 1953 } else 1954 *change = long_val; 1955 if (l->lcp.cfg.mtu > *change) 1956 l->lcp.cfg.mtu = *change; 1957 break; 1958 1959 case VAR_OPENMODE: 1960 if (strcasecmp(argp, "active") == 0) 1961 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ? 1962 atoi(arg->argv[arg->argn+1]) : 1; 1963 else if (strcasecmp(argp, "passive") == 0) 1964 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE; 1965 else { 1966 log_Printf(LogWARN, "%s: Invalid openmode\n", argp); 1967 res = 1; 1968 } 1969 break; 1970 1971 case VAR_PHONE: 1972 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1); 1973 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0'; 1974 cx->phone.alt = cx->phone.next = NULL; 1975 break; 1976 1977 case VAR_HANGUP: 1978 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1); 1979 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0'; 1980 break; 1981 1982 case VAR_IFQUEUE: 1983 long_val = atol(argp); 1984 arg->bundle->cfg.ifqueue = long_val < 0 ? 0 : long_val; 1985 break; 1986 1987 case VAR_LOGOUT: 1988 strncpy(cx->cfg.script.logout, argp, sizeof cx->cfg.script.logout - 1); 1989 cx->cfg.script.logout[sizeof cx->cfg.script.logout - 1] = '\0'; 1990 break; 1991 1992 case VAR_IDLETIMEOUT: 1993 if (arg->argc > arg->argn+2) { 1994 log_Printf(LogWARN, "Too many idle timeout values\n"); 1995 res = 1; 1996 } else if (arg->argc == arg->argn) { 1997 log_Printf(LogWARN, "Too few idle timeout values\n"); 1998 res = 1; 1999 } else { 2000 int timeout, min; 2001 2002 timeout = atoi(argp); 2003 min = arg->argc == arg->argn + 2 ? atoi(arg->argv[arg->argn + 1]) : -1; 2004 bundle_SetIdleTimer(arg->bundle, timeout, min); 2005 } 2006 break; 2007 2008 case VAR_LQRPERIOD: 2009 long_val = atol(argp); 2010 if (long_val < MIN_LQRPERIOD) { 2011 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n", 2012 long_val, MIN_LQRPERIOD); 2013 res = 1; 2014 } else 2015 l->lcp.cfg.lqrperiod = long_val; 2016 break; 2017 2018 case VAR_LCPRETRY: 2019 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2020 &cx->physical->link.lcp.cfg.fsm.timeout, 2021 &cx->physical->link.lcp.cfg.fsm.maxreq, 2022 &cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2023 break; 2024 2025 case VAR_CHAPRETRY: 2026 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2027 &cx->chap.auth.cfg.fsm.timeout, 2028 &cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES); 2029 break; 2030 2031 case VAR_PAPRETRY: 2032 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2033 &cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq, 2034 NULL, DEF_FSMAUTHTRIES); 2035 break; 2036 2037 case VAR_CCPRETRY: 2038 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2039 &l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq, 2040 &l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2041 break; 2042 2043 case VAR_IPCPRETRY: 2044 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2045 &arg->bundle->ncp.ipcp.cfg.fsm.timeout, 2046 &arg->bundle->ncp.ipcp.cfg.fsm.maxreq, 2047 &arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2048 break; 2049 2050 #ifndef NOINET6 2051 case VAR_IPV6CPRETRY: 2052 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2053 &arg->bundle->ncp.ipv6cp.cfg.fsm.timeout, 2054 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxreq, 2055 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2056 break; 2057 #endif 2058 2059 case VAR_NBNS: 2060 case VAR_DNS: 2061 if (param == VAR_DNS) { 2062 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.dns; 2063 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_NONE; 2064 } else { 2065 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.nbns; 2066 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_ANY; 2067 } 2068 2069 if (arg->argc > arg->argn) { 2070 ncpaddr_aton(ncpaddr, &arg->bundle->ncp, arg->argv[arg->argn]); 2071 if (!ncpaddr_getip4(ncpaddr, ipaddr)) 2072 return -1; 2073 if (arg->argc > arg->argn+1) { 2074 ncpaddr_aton(ncpaddr + 1, &arg->bundle->ncp, arg->argv[arg->argn + 1]); 2075 if (!ncpaddr_getip4(ncpaddr + 1, ipaddr + 1)) 2076 return -1; 2077 } 2078 2079 if (ipaddr[0].s_addr == INADDR_ANY) { 2080 ipaddr[0] = ipaddr[1]; 2081 ipaddr[1].s_addr = INADDR_ANY; 2082 } 2083 if (ipaddr[0].s_addr == INADDR_NONE) { 2084 ipaddr[0] = ipaddr[1]; 2085 ipaddr[1].s_addr = INADDR_NONE; 2086 } 2087 } 2088 break; 2089 2090 case VAR_CALLBACK: 2091 cx->cfg.callback.opmask = 0; 2092 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) { 2093 if (!strcasecmp(arg->argv[dummyint], "auth")) 2094 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH); 2095 else if (!strcasecmp(arg->argv[dummyint], "cbcp")) 2096 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP); 2097 else if (!strcasecmp(arg->argv[dummyint], "e.164")) { 2098 if (dummyint == arg->argc - 1) 2099 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n"); 2100 else { 2101 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164); 2102 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint], 2103 sizeof cx->cfg.callback.msg - 1); 2104 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0'; 2105 } 2106 } else if (!strcasecmp(arg->argv[dummyint], "none")) 2107 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE); 2108 else { 2109 res = -1; 2110 break; 2111 } 2112 } 2113 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE)) 2114 cx->cfg.callback.opmask = 0; 2115 break; 2116 2117 case VAR_CBCP: 2118 cx->cfg.cbcp.delay = 0; 2119 *cx->cfg.cbcp.phone = '\0'; 2120 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY; 2121 if (arg->argc > arg->argn) { 2122 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn], 2123 sizeof cx->cfg.cbcp.phone - 1); 2124 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0'; 2125 if (arg->argc > arg->argn + 1) { 2126 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]); 2127 if (arg->argc > arg->argn + 2) { 2128 long_val = atol(arg->argv[arg->argn + 2]); 2129 if (long_val < MIN_FSMRETRY) 2130 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n", 2131 long_val, MIN_FSMRETRY); 2132 else 2133 cx->cfg.cbcp.fsmretry = long_val; 2134 } 2135 } 2136 } 2137 break; 2138 2139 case VAR_CHOKED: 2140 arg->bundle->cfg.choked.timeout = atoi(argp); 2141 if (arg->bundle->cfg.choked.timeout <= 0) 2142 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT; 2143 break; 2144 2145 case VAR_SENDPIPE: 2146 long_val = atol(argp); 2147 arg->bundle->ncp.cfg.sendpipe = long_val; 2148 break; 2149 2150 case VAR_RECVPIPE: 2151 long_val = atol(argp); 2152 arg->bundle->ncp.cfg.recvpipe = long_val; 2153 break; 2154 2155 #ifndef NORADIUS 2156 case VAR_RADIUS: 2157 if (!*argp) 2158 *arg->bundle->radius.cfg.file = '\0'; 2159 else if (access(argp, R_OK)) { 2160 log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno)); 2161 res = 1; 2162 break; 2163 } else { 2164 strncpy(arg->bundle->radius.cfg.file, argp, 2165 sizeof arg->bundle->radius.cfg.file - 1); 2166 arg->bundle->radius.cfg.file 2167 [sizeof arg->bundle->radius.cfg.file - 1] = '\0'; 2168 } 2169 break; 2170 #endif 2171 2172 case VAR_CD: 2173 if (*argp) { 2174 if (strcasecmp(argp, "off")) { 2175 long_val = atol(argp); 2176 if (long_val < 0) 2177 long_val = 0; 2178 cx->physical->cfg.cd.delay = long_val; 2179 cx->physical->cfg.cd.necessity = argp[strlen(argp)-1] == '!' ? 2180 CD_REQUIRED : CD_VARIABLE; 2181 } else 2182 cx->physical->cfg.cd.necessity = CD_NOTREQUIRED; 2183 } else { 2184 cx->physical->cfg.cd.delay = 0; 2185 cx->physical->cfg.cd.necessity = CD_DEFAULT; 2186 } 2187 break; 2188 2189 case VAR_PARITY: 2190 if (arg->argc == arg->argn + 1) 2191 res = physical_SetParity(arg->cx->physical, argp); 2192 else { 2193 log_Printf(LogWARN, "Parity value must be odd, even or none\n"); 2194 res = 1; 2195 } 2196 break; 2197 2198 case VAR_CRTSCTS: 2199 if (strcasecmp(argp, "on") == 0) 2200 physical_SetRtsCts(arg->cx->physical, 1); 2201 else if (strcasecmp(argp, "off") == 0) 2202 physical_SetRtsCts(arg->cx->physical, 0); 2203 else { 2204 log_Printf(LogWARN, "RTS/CTS value must be on or off\n"); 2205 res = 1; 2206 } 2207 break; 2208 2209 case VAR_URGENTPORTS: 2210 if (arg->argn == arg->argc) { 2211 ncp_SetUrgentTOS(&arg->bundle->ncp); 2212 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2213 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2214 } else if (!strcasecmp(arg->argv[arg->argn], "udp")) { 2215 ncp_SetUrgentTOS(&arg->bundle->ncp); 2216 if (arg->argn == arg->argc - 1) 2217 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2218 else for (f = arg->argn + 1; f < arg->argc; f++) 2219 if (*arg->argv[f] == '+') 2220 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2221 else if (*arg->argv[f] == '-') 2222 ncp_RemoveUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2223 else { 2224 if (f == arg->argn) 2225 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2226 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2227 } 2228 } else if (arg->argn == arg->argc - 1 && 2229 !strcasecmp(arg->argv[arg->argn], "none")) { 2230 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2231 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2232 ncp_ClearUrgentTOS(&arg->bundle->ncp); 2233 } else { 2234 ncp_SetUrgentTOS(&arg->bundle->ncp); 2235 first = arg->argn; 2236 if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc) 2237 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2238 2239 for (f = first; f < arg->argc; f++) 2240 if (*arg->argv[f] == '+') 2241 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2242 else if (*arg->argv[f] == '-') 2243 ncp_RemoveUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2244 else { 2245 if (f == first) 2246 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2247 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2248 } 2249 } 2250 break; 2251 } 2252 2253 return res; 2254 } 2255 2256 static struct cmdtab const SetCommands[] = { 2257 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2258 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP}, 2259 {"authkey", "key", SetVariable, LOCAL_AUTH, 2260 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY}, 2261 {"authname", NULL, SetVariable, LOCAL_AUTH, 2262 "authentication name", "set authname name", (const void *)VAR_AUTHNAME}, 2263 {"autoload", NULL, SetVariable, LOCAL_AUTH, 2264 "auto link [de]activation", "set autoload maxtime maxload mintime minload", 2265 (const void *)VAR_AUTOLOAD}, 2266 {"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX, 2267 "datalink bandwidth", "set bandwidth value"}, 2268 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2269 "callback control", "set callback [none|auth|cbcp|" 2270 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK}, 2271 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2272 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]", 2273 (const void *)VAR_CBCP}, 2274 {"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2275 "CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY}, 2276 {"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement", 2277 "set cd value[!]", (const void *)VAR_CD}, 2278 {"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX, 2279 "CHAP retries", "set chapretry value [attempts]", 2280 (const void *)VAR_CHAPRETRY}, 2281 {"choked", NULL, SetVariable, LOCAL_AUTH, 2282 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED}, 2283 {"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX, 2284 "Use hardware flow control", "set ctsrts [on|off]", 2285 (const char *)VAR_CRTSCTS}, 2286 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2287 "deflate window sizes", "set deflate out-winsize in-winsize", 2288 (const void *) VAR_WINSIZE}, 2289 #ifndef NODES 2290 {"mppe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2291 "MPPE key size and state", "set mppe [40|56|128|* [stateful|stateless|*]]", 2292 (const void *) VAR_MPPE}, 2293 #endif 2294 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX, 2295 "physical device name", "set device|line device-name[,device-name]", 2296 (const void *) VAR_DEVICE}, 2297 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2298 "dialing script", "set dial chat-script", (const void *) VAR_DIAL}, 2299 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server", 2300 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS}, 2301 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH, 2302 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]"}, 2303 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX, 2304 "escape characters", "set escape hex-digit ..."}, 2305 {"filter", NULL, filter_Set, LOCAL_AUTH, 2306 "packet filters", "set filter alive|dial|in|out rule-no permit|deny " 2307 "[src_addr[/width]] [dst_addr[/width]] [proto " 2308 "[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]"}, 2309 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2310 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP}, 2311 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address", 2312 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"}, 2313 {"ifqueue", NULL, SetVariable, LOCAL_AUTH, "interface queue", 2314 "set ifqueue packets", (const void *)VAR_IFQUEUE}, 2315 {"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries", 2316 "set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY}, 2317 {"ipv6cpretry", "ipv6cpretries", SetVariable, LOCAL_AUTH, "IPV6CP retries", 2318 "set ipv6cpretry value [attempts]", (const void *)VAR_IPV6CPRETRY}, 2319 {"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries", 2320 "set lcpretry value [attempts]", (const void *)VAR_LCPRETRY}, 2321 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level", 2322 "set log [local] [+|-]all|async|cbcp|ccp|chat|command|connect|debug|dns|hdlc|" 2323 "id0|ipcp|lcp|lqm|phase|physical|sync|tcp/ip|timer|tun..."}, 2324 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2325 "login script", "set login chat-script", (const void *) VAR_LOGIN}, 2326 {"logout", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2327 "logout script", "set logout chat-script", (const void *) VAR_LOGOUT}, 2328 {"lqrperiod", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2329 "LQR period", "set lqrperiod value", (const void *)VAR_LQRPERIOD}, 2330 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value", 2331 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE}, 2332 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value", 2333 "set mrru value", (const void *)VAR_MRRU}, 2334 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2335 "MRU value", "set mru [max[imum]] [value]", (const void *)VAR_MRU}, 2336 {"mtu", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2337 "interface MTU value", "set mtu [max[imum]] [value]", (const void *)VAR_MTU}, 2338 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server", 2339 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS}, 2340 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode", 2341 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE}, 2342 {"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries", 2343 "set papretry value [attempts]", (const void *)VAR_PAPRETRY}, 2344 {"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity", 2345 "set parity [odd|even|none]", (const void *)VAR_PARITY}, 2346 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)", 2347 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE}, 2348 {"proctitle", "title", SetProcTitle, LOCAL_AUTH, 2349 "Process title", "set proctitle [value]"}, 2350 #ifndef NORADIUS 2351 {"radius", NULL, SetVariable, LOCAL_AUTH, 2352 "RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS}, 2353 #endif 2354 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX, 2355 "Reconnect timeout", "set reconnect value ntries"}, 2356 {"recvpipe", NULL, SetVariable, LOCAL_AUTH, 2357 "RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE}, 2358 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX, 2359 "Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]"}, 2360 {"sendpipe", NULL, SetVariable, LOCAL_AUTH, 2361 "SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE}, 2362 {"server", "socket", SetServer, LOCAL_AUTH, "diagnostic port", 2363 "set server|socket TcpPort|LocalName|none|open|closed [password [mask]]"}, 2364 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX, 2365 "physical speed", "set speed value|sync"}, 2366 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX, 2367 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]"}, 2368 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout", 2369 "set timeout idletime", (const void *)VAR_IDLETIMEOUT}, 2370 {"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent ports", 2371 "set urgent [tcp|udp] [+|-]port...", (const void *)VAR_URGENTPORTS}, 2372 {"vj", NULL, ipcp_vjset, LOCAL_AUTH, 2373 "vj values", "set vj slots|slotcomp [value]"}, 2374 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2375 "Display this message", "set help|? [command]", SetCommands}, 2376 {NULL, NULL, NULL}, 2377 }; 2378 2379 static int 2380 SetCommand(struct cmdargs const *arg) 2381 { 2382 if (arg->argc > arg->argn) 2383 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv, 2384 arg->prompt, arg->cx); 2385 else if (arg->prompt) 2386 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for" 2387 " syntax help.\n"); 2388 else 2389 log_Printf(LogWARN, "set command must have arguments\n"); 2390 2391 return 0; 2392 } 2393 2394 static int 2395 AddCommand(struct cmdargs const *arg) 2396 { 2397 struct ncpaddr gw; 2398 struct ncprange dest; 2399 struct in_addr host; 2400 int dest_default, gw_arg, addrs; 2401 2402 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2) 2403 return -1; 2404 2405 addrs = 0; 2406 dest_default = 0; 2407 if (arg->argc == arg->argn + 2) { 2408 if (!strcasecmp(arg->argv[arg->argn], "default")) 2409 dest_default = 1; 2410 else { 2411 if (!ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn])) 2412 return -1; 2413 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6)) 2414 addrs = ROUTE_DSTMYADDR; 2415 else if (!strncasecmp(arg->argv[arg->argn], "MYADDR6", 7)) 2416 addrs = ROUTE_DSTMYADDR6; 2417 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7)) 2418 addrs = ROUTE_DSTHISADDR; 2419 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR6", 8)) 2420 addrs = ROUTE_DSTHISADDR6; 2421 else if (!strncasecmp(arg->argv[arg->argn], "DNS0", 4)) 2422 addrs = ROUTE_DSTDNS0; 2423 else if (!strncasecmp(arg->argv[arg->argn], "DNS1", 4)) 2424 addrs = ROUTE_DSTDNS1; 2425 } 2426 gw_arg = 1; 2427 } else { 2428 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2429 addrs = ROUTE_DSTMYADDR; 2430 host = arg->bundle->ncp.ipcp.my_ip; 2431 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2432 addrs = ROUTE_DSTHISADDR; 2433 host = arg->bundle->ncp.ipcp.peer_ip; 2434 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2435 addrs = ROUTE_DSTDNS0; 2436 host = arg->bundle->ncp.ipcp.ns.dns[0]; 2437 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2438 addrs = ROUTE_DSTDNS1; 2439 host = arg->bundle->ncp.ipcp.ns.dns[1]; 2440 } else { 2441 host = GetIpAddr(arg->argv[arg->argn]); 2442 if (host.s_addr == INADDR_NONE) { 2443 log_Printf(LogWARN, "%s: Invalid destination address\n", 2444 arg->argv[arg->argn]); 2445 return -1; 2446 } 2447 } 2448 ncprange_setip4(&dest, host, GetIpAddr(arg->argv[arg->argn + 1])); 2449 gw_arg = 2; 2450 } 2451 2452 if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR") == 0) { 2453 ncpaddr_setip4(&gw, arg->bundle->ncp.ipcp.peer_ip); 2454 addrs |= ROUTE_GWHISADDR; 2455 #ifndef NOINET6 2456 } else if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR6") == 0) { 2457 ncpaddr_copy(&gw, &arg->bundle->ncp.ipv6cp.hisaddr); 2458 addrs |= ROUTE_GWHISADDR6; 2459 #endif 2460 } else { 2461 if (!ncpaddr_aton(&gw, &arg->bundle->ncp, arg->argv[arg->argn + gw_arg])) { 2462 log_Printf(LogWARN, "%s: Invalid gateway address\n", 2463 arg->argv[arg->argn + gw_arg]); 2464 return -1; 2465 } 2466 } 2467 2468 if (dest_default) 2469 ncprange_setdefault(&dest, ncpaddr_family(&gw)); 2470 2471 if (rt_Set(arg->bundle, RTM_ADD, &dest, &gw, arg->cmd->args ? 1 : 0, 2472 ((addrs & ROUTE_GWHISADDR) || (addrs & ROUTE_GWHISADDR6)) ? 1 : 0) 2473 && addrs != ROUTE_STATIC) 2474 route_Add(&arg->bundle->ncp.route, addrs, &dest, &gw); 2475 2476 return 0; 2477 } 2478 2479 static int 2480 DeleteCommand(struct cmdargs const *arg) 2481 { 2482 struct ncprange dest; 2483 int addrs; 2484 2485 if (arg->argc == arg->argn+1) { 2486 if(strcasecmp(arg->argv[arg->argn], "all") == 0) { 2487 route_IfDelete(arg->bundle, 0); 2488 route_DeleteAll(&arg->bundle->ncp.route); 2489 } else { 2490 addrs = 0; 2491 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2492 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.my_ip); 2493 addrs = ROUTE_DSTMYADDR; 2494 #ifndef NOINET6 2495 } else if (strcasecmp(arg->argv[arg->argn], "MYADDR6") == 0) { 2496 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.myaddr); 2497 addrs = ROUTE_DSTMYADDR6; 2498 #endif 2499 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2500 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.peer_ip); 2501 addrs = ROUTE_DSTHISADDR; 2502 #ifndef NOINET6 2503 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR6") == 0) { 2504 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.hisaddr); 2505 addrs = ROUTE_DSTHISADDR6; 2506 #endif 2507 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2508 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[0]); 2509 addrs = ROUTE_DSTDNS0; 2510 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2511 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[1]); 2512 addrs = ROUTE_DSTDNS1; 2513 } else { 2514 ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn]); 2515 addrs = ROUTE_STATIC; 2516 } 2517 rt_Set(arg->bundle, RTM_DELETE, &dest, NULL, arg->cmd->args ? 1 : 0, 0); 2518 route_Delete(&arg->bundle->ncp.route, addrs, &dest); 2519 } 2520 } else 2521 return -1; 2522 2523 return 0; 2524 } 2525 2526 #ifndef NONAT 2527 static int 2528 NatEnable(struct cmdargs const *arg) 2529 { 2530 if (arg->argc == arg->argn+1) { 2531 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2532 if (!arg->bundle->NatEnabled) { 2533 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 2534 PacketAliasSetAddress(arg->bundle->ncp.ipcp.my_ip); 2535 arg->bundle->NatEnabled = 1; 2536 } 2537 return 0; 2538 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) { 2539 arg->bundle->NatEnabled = 0; 2540 arg->bundle->cfg.opt &= ~OPT_IFACEALIAS; 2541 /* Don't iface_Clear() - there may be manually configured addresses */ 2542 return 0; 2543 } 2544 } 2545 2546 return -1; 2547 } 2548 2549 2550 static int 2551 NatOption(struct cmdargs const *arg) 2552 { 2553 long param = (long)arg->cmd->args; 2554 2555 if (arg->argc == arg->argn+1) { 2556 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2557 if (arg->bundle->NatEnabled) { 2558 PacketAliasSetMode(param, param); 2559 return 0; 2560 } 2561 log_Printf(LogWARN, "nat not enabled\n"); 2562 } else if (strcmp(arg->argv[arg->argn], "no") == 0) { 2563 if (arg->bundle->NatEnabled) { 2564 PacketAliasSetMode(0, param); 2565 return 0; 2566 } 2567 log_Printf(LogWARN, "nat not enabled\n"); 2568 } 2569 } 2570 return -1; 2571 } 2572 #endif /* #ifndef NONAT */ 2573 2574 static int 2575 LinkCommand(struct cmdargs const *arg) 2576 { 2577 if (arg->argc > arg->argn+1) { 2578 char namelist[LINE_LEN]; 2579 struct datalink *cx; 2580 char *name; 2581 int result = 0; 2582 2583 if (!strcmp(arg->argv[arg->argn], "*")) { 2584 struct datalink *dl; 2585 2586 cx = arg->bundle->links; 2587 while (cx) { 2588 /* Watch it, the command could be a ``remove'' */ 2589 dl = cx->next; 2590 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2591 arg->prompt, cx); 2592 for (cx = arg->bundle->links; cx; cx = cx->next) 2593 if (cx == dl) 2594 break; /* Pointer's still valid ! */ 2595 } 2596 } else { 2597 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2598 namelist[sizeof namelist - 1] = '\0'; 2599 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 2600 if (!bundle2datalink(arg->bundle, name)) { 2601 log_Printf(LogWARN, "link: %s: Invalid link name\n", name); 2602 return 1; 2603 } 2604 2605 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2606 namelist[sizeof namelist - 1] = '\0'; 2607 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) { 2608 cx = bundle2datalink(arg->bundle, name); 2609 if (cx) 2610 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2611 arg->prompt, cx); 2612 else { 2613 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name); 2614 result++; 2615 } 2616 } 2617 } 2618 return result; 2619 } 2620 2621 log_Printf(LogWARN, "usage: %s\n", arg->cmd->syntax); 2622 return 2; 2623 } 2624 2625 struct link * 2626 command_ChooseLink(struct cmdargs const *arg) 2627 { 2628 if (arg->cx) 2629 return &arg->cx->physical->link; 2630 else if (!arg->bundle->ncp.mp.cfg.mrru) { 2631 struct datalink *dl = bundle2datalink(arg->bundle, NULL); 2632 if (dl) 2633 return &dl->physical->link; 2634 } 2635 return &arg->bundle->ncp.mp.link; 2636 } 2637 2638 static const char * 2639 ident_cmd(const char *cmd, unsigned *keep, unsigned *add) 2640 { 2641 const char *result; 2642 2643 switch (*cmd) { 2644 case 'A': 2645 case 'a': 2646 result = "accept"; 2647 *keep = NEG_MYMASK; 2648 *add = NEG_ACCEPTED; 2649 break; 2650 case 'D': 2651 case 'd': 2652 switch (cmd[1]) { 2653 case 'E': 2654 case 'e': 2655 result = "deny"; 2656 *keep = NEG_MYMASK; 2657 *add = 0; 2658 break; 2659 case 'I': 2660 case 'i': 2661 result = "disable"; 2662 *keep = NEG_HISMASK; 2663 *add = 0; 2664 break; 2665 default: 2666 return NULL; 2667 } 2668 break; 2669 case 'E': 2670 case 'e': 2671 result = "enable"; 2672 *keep = NEG_HISMASK; 2673 *add = NEG_ENABLED; 2674 break; 2675 default: 2676 return NULL; 2677 } 2678 2679 return result; 2680 } 2681 2682 static int 2683 OptSet(struct cmdargs const *arg) 2684 { 2685 int bit = (int)(long)arg->cmd->args; 2686 unsigned keep; /* Keep these bits */ 2687 unsigned add; /* Add these bits */ 2688 2689 if (ident_cmd(arg->argv[arg->argn - 2], &keep, &add) == NULL) 2690 return 1; 2691 2692 #ifndef NOINET6 2693 if (add == NEG_ENABLED && bit == OPT_IPV6CP && !probe.ipv6_available) { 2694 log_Printf(LogWARN, "IPv6 is not available on this machine\n"); 2695 return 1; 2696 } 2697 #endif 2698 2699 if (add) 2700 arg->bundle->cfg.opt |= bit; 2701 else 2702 arg->bundle->cfg.opt &= ~bit; 2703 2704 return 0; 2705 } 2706 2707 static int 2708 IfaceAliasOptSet(struct cmdargs const *arg) 2709 { 2710 unsigned save = arg->bundle->cfg.opt; 2711 int result = OptSet(arg); 2712 2713 if (result == 0) 2714 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) { 2715 arg->bundle->cfg.opt = save; 2716 log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n"); 2717 result = 2; 2718 } 2719 2720 return result; 2721 } 2722 2723 static int 2724 NegotiateSet(struct cmdargs const *arg) 2725 { 2726 long param = (long)arg->cmd->args; 2727 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 2728 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 2729 const char *cmd; 2730 unsigned keep; /* Keep these bits */ 2731 unsigned add; /* Add these bits */ 2732 2733 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2734 return 1; 2735 2736 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 2737 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n", 2738 cmd, arg->cmd->name); 2739 return 2; 2740 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 2741 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n", 2742 cmd, arg->cmd->name, cx->name); 2743 cx = NULL; 2744 } 2745 2746 switch (param) { 2747 case NEG_ACFCOMP: 2748 cx->physical->link.lcp.cfg.acfcomp &= keep; 2749 cx->physical->link.lcp.cfg.acfcomp |= add; 2750 break; 2751 case NEG_CHAP05: 2752 cx->physical->link.lcp.cfg.chap05 &= keep; 2753 cx->physical->link.lcp.cfg.chap05 |= add; 2754 break; 2755 #ifndef NODES 2756 case NEG_CHAP80: 2757 cx->physical->link.lcp.cfg.chap80nt &= keep; 2758 cx->physical->link.lcp.cfg.chap80nt |= add; 2759 break; 2760 case NEG_CHAP80LM: 2761 cx->physical->link.lcp.cfg.chap80lm &= keep; 2762 cx->physical->link.lcp.cfg.chap80lm |= add; 2763 break; 2764 case NEG_CHAP81: 2765 cx->physical->link.lcp.cfg.chap81 &= keep; 2766 cx->physical->link.lcp.cfg.chap81 |= add; 2767 break; 2768 case NEG_MPPE: 2769 l->ccp.cfg.neg[CCP_NEG_MPPE] &= keep; 2770 l->ccp.cfg.neg[CCP_NEG_MPPE] |= add; 2771 break; 2772 #endif 2773 case NEG_DEFLATE: 2774 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep; 2775 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add; 2776 break; 2777 case NEG_DNS: 2778 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep; 2779 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add; 2780 break; 2781 case NEG_ENDDISC: 2782 arg->bundle->ncp.mp.cfg.negenddisc &= keep; 2783 arg->bundle->ncp.mp.cfg.negenddisc |= add; 2784 break; 2785 case NEG_LQR: 2786 cx->physical->link.lcp.cfg.lqr &= keep; 2787 cx->physical->link.lcp.cfg.lqr |= add; 2788 break; 2789 case NEG_PAP: 2790 cx->physical->link.lcp.cfg.pap &= keep; 2791 cx->physical->link.lcp.cfg.pap |= add; 2792 break; 2793 case NEG_PPPDDEFLATE: 2794 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep; 2795 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add; 2796 break; 2797 case NEG_PRED1: 2798 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep; 2799 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add; 2800 break; 2801 case NEG_PROTOCOMP: 2802 cx->physical->link.lcp.cfg.protocomp &= keep; 2803 cx->physical->link.lcp.cfg.protocomp |= add; 2804 break; 2805 case NEG_SHORTSEQ: 2806 switch (bundle_Phase(arg->bundle)) { 2807 case PHASE_DEAD: 2808 break; 2809 case PHASE_ESTABLISH: 2810 /* Make sure none of our links are DATALINK_LCP or greater */ 2811 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 2812 log_Printf(LogWARN, "shortseq: Only changable before" 2813 " LCP negotiations\n"); 2814 return 1; 2815 } 2816 break; 2817 default: 2818 log_Printf(LogWARN, "shortseq: Only changable at phase" 2819 " DEAD/ESTABLISH\n"); 2820 return 1; 2821 } 2822 arg->bundle->ncp.mp.cfg.shortseq &= keep; 2823 arg->bundle->ncp.mp.cfg.shortseq |= add; 2824 break; 2825 case NEG_VJCOMP: 2826 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep; 2827 arg->bundle->ncp.ipcp.cfg.vj.neg |= add; 2828 break; 2829 } 2830 2831 return 0; 2832 } 2833 2834 static struct cmdtab const NegotiateCommands[] = { 2835 {"filter-decapsulation", NULL, OptSet, LOCAL_AUTH, 2836 "filter on PPPoUDP payloads", "disable|enable", 2837 (const void *)OPT_FILTERDECAP}, 2838 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids", 2839 "disable|enable", (const void *)OPT_IDCHECK}, 2840 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH, 2841 "retain interface addresses", "disable|enable", 2842 (const void *)OPT_IFACEALIAS}, 2843 #ifndef NOINET6 2844 {"ipcp", NULL, OptSet, LOCAL_AUTH, "IP Network Control Protocol", 2845 "disable|enable", (const void *)OPT_IPCP}, 2846 {"ipv6cp", NULL, OptSet, LOCAL_AUTH, "IPv6 Network Control Protocol", 2847 "disable|enable", (const void *)OPT_IPV6CP}, 2848 #endif 2849 {"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader", 2850 "disable|enable", (const void *)OPT_KEEPSESSION}, 2851 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface", 2852 "disable|enable", (const void *)OPT_LOOPBACK}, 2853 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file", 2854 "disable|enable", (const void *)OPT_PASSWDAUTH}, 2855 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry", 2856 "disable|enable", (const void *)OPT_PROXY}, 2857 {"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts", 2858 "disable|enable", (const void *)OPT_PROXYALL}, 2859 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes", 2860 "disable|enable", (const void *)OPT_SROUTES}, 2861 {"tcpmssfixup", "mssfixup", OptSet, LOCAL_AUTH, "Modify MSS options", 2862 "disable|enable", (const void *)OPT_TCPMSSFIXUP}, 2863 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput", 2864 "disable|enable", (const void *)OPT_THROUGHPUT}, 2865 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp", 2866 "disable|enable", (const void *)OPT_UTMP}, 2867 2868 #ifndef NOINET6 2869 #define OPT_MAX 13 /* accept/deny allowed below and not above */ 2870 #else 2871 #define OPT_MAX 11 2872 #endif 2873 2874 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2875 "Address & Control field compression", "accept|deny|disable|enable", 2876 (const void *)NEG_ACFCOMP}, 2877 {"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2878 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable", 2879 (const void *)NEG_CHAP05}, 2880 #ifndef NODES 2881 {"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2882 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2883 (const void *)NEG_CHAP80}, 2884 {"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2885 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 2886 (const void *)NEG_CHAP80LM}, 2887 {"mschapv2", "chap81", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2888 "Microsoft CHAP v2", "accept|deny|disable|enable", 2889 (const void *)NEG_CHAP81}, 2890 {"mppe", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2891 "MPPE encryption", "accept|deny|disable|enable", 2892 (const void *)NEG_MPPE}, 2893 #endif 2894 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2895 "Deflate compression", "accept|deny|disable|enable", 2896 (const void *)NEG_DEFLATE}, 2897 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2898 "Deflate (type 24) compression", "accept|deny|disable|enable", 2899 (const void *)NEG_PPPDDEFLATE}, 2900 {"dns", NULL, NegotiateSet, LOCAL_AUTH, 2901 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS}, 2902 {"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation", 2903 "accept|deny|disable|enable", (const void *)NEG_ENDDISC}, 2904 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2905 "Link Quality Reports", "accept|deny|disable|enable", 2906 (const void *)NEG_LQR}, 2907 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2908 "Password Authentication protocol", "accept|deny|disable|enable", 2909 (const void *)NEG_PAP}, 2910 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 2911 "Predictor 1 compression", "accept|deny|disable|enable", 2912 (const void *)NEG_PRED1}, 2913 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 2914 "Protocol field compression", "accept|deny|disable|enable", 2915 (const void *)NEG_PROTOCOMP}, 2916 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH, 2917 "MP Short Sequence Numbers", "accept|deny|disable|enable", 2918 (const void *)NEG_SHORTSEQ}, 2919 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH, 2920 "Van Jacobson header compression", "accept|deny|disable|enable", 2921 (const void *)NEG_VJCOMP}, 2922 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2923 "Display this message", "accept|deny|disable|enable help|? [value]", 2924 NegotiateCommands}, 2925 {NULL, NULL, NULL}, 2926 }; 2927 2928 static int 2929 NegotiateCommand(struct cmdargs const *arg) 2930 { 2931 if (arg->argc > arg->argn) { 2932 char const *argv[3]; 2933 unsigned keep, add; 2934 int n; 2935 2936 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL) 2937 return -1; 2938 argv[2] = NULL; 2939 2940 for (n = arg->argn; n < arg->argc; n++) { 2941 argv[1] = arg->argv[n]; 2942 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ? 2943 0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx); 2944 } 2945 } else if (arg->prompt) 2946 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n", 2947 arg->argv[arg->argn-1]); 2948 else 2949 log_Printf(LogWARN, "%s command must have arguments\n", 2950 arg->argv[arg->argn] ); 2951 2952 return 0; 2953 } 2954 2955 const char * 2956 command_ShowNegval(unsigned val) 2957 { 2958 switch (val&3) { 2959 case 1: return "disabled & accepted"; 2960 case 2: return "enabled & denied"; 2961 case 3: return "enabled & accepted"; 2962 } 2963 return "disabled & denied"; 2964 } 2965 2966 static int 2967 ClearCommand(struct cmdargs const *arg) 2968 { 2969 struct pppThroughput *t; 2970 struct datalink *cx; 2971 int i, clear_type; 2972 2973 if (arg->argc < arg->argn + 1) 2974 return -1; 2975 2976 if (strcasecmp(arg->argv[arg->argn], "physical") == 0) { 2977 cx = arg->cx; 2978 if (!cx) 2979 cx = bundle2datalink(arg->bundle, NULL); 2980 if (!cx) { 2981 log_Printf(LogWARN, "A link must be specified for ``clear physical''\n"); 2982 return 1; 2983 } 2984 t = &cx->physical->link.stats.total; 2985 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0) 2986 t = &arg->bundle->ncp.ipcp.throughput; 2987 #ifndef NOINET6 2988 else if (strcasecmp(arg->argv[arg->argn], "ipv6cp") == 0) 2989 t = &arg->bundle->ncp.ipv6cp.throughput; 2990 #endif 2991 else 2992 return -1; 2993 2994 if (arg->argc > arg->argn + 1) { 2995 clear_type = 0; 2996 for (i = arg->argn + 1; i < arg->argc; i++) 2997 if (strcasecmp(arg->argv[i], "overall") == 0) 2998 clear_type |= THROUGHPUT_OVERALL; 2999 else if (strcasecmp(arg->argv[i], "current") == 0) 3000 clear_type |= THROUGHPUT_CURRENT; 3001 else if (strcasecmp(arg->argv[i], "peak") == 0) 3002 clear_type |= THROUGHPUT_PEAK; 3003 else 3004 return -1; 3005 } else 3006 clear_type = THROUGHPUT_ALL; 3007 3008 throughput_clear(t, clear_type, arg->prompt); 3009 return 0; 3010 } 3011 3012 static int 3013 RunListCommand(struct cmdargs const *arg) 3014 { 3015 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???"; 3016 3017 #ifndef NONAT 3018 if (arg->cmd->args == NatCommands && 3019 tolower(*arg->argv[arg->argn - 1]) == 'a') { 3020 if (arg->prompt) 3021 prompt_Printf(arg->prompt, "The alias command is deprecated\n"); 3022 else 3023 log_Printf(LogWARN, "The alias command is deprecated\n"); 3024 } 3025 #endif 3026 3027 if (arg->argc > arg->argn) 3028 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv, 3029 arg->prompt, arg->cx); 3030 else if (arg->prompt) 3031 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help" 3032 " <option>' for syntax help.\n", cmd, cmd); 3033 else 3034 log_Printf(LogWARN, "%s command must have arguments\n", cmd); 3035 3036 return 0; 3037 } 3038 3039 static int 3040 IfaceAddCommand(struct cmdargs const *arg) 3041 { 3042 struct ncpaddr peer, addr; 3043 struct ncprange ifa; 3044 struct in_addr mask; 3045 int n, how; 3046 3047 if (arg->argc == arg->argn + 1) { 3048 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3049 return -1; 3050 ncpaddr_init(&peer); 3051 } else { 3052 if (arg->argc == arg->argn + 2) { 3053 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3054 return -1; 3055 n = 1; 3056 } else if (arg->argc == arg->argn + 3) { 3057 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn])) 3058 return -1; 3059 if (ncpaddr_family(&addr) != AF_INET) 3060 return -1; 3061 ncprange_sethost(&ifa, &addr); 3062 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn + 1])) 3063 return -1; 3064 if (!ncpaddr_getip4(&addr, &mask)) 3065 return -1; 3066 if (!ncprange_setip4mask(&ifa, mask)) 3067 return -1; 3068 n = 2; 3069 } else 3070 return -1; 3071 3072 if (!ncpaddr_aton(&peer, NULL, arg->argv[arg->argn + n])) 3073 return -1; 3074 3075 if (ncprange_family(&ifa) != ncpaddr_family(&peer)) { 3076 log_Printf(LogWARN, "IfaceAddCommand: src and dst address families" 3077 " differ\n"); 3078 return -1; 3079 } 3080 } 3081 3082 how = IFACE_ADD_LAST; 3083 if (arg->cmd->args) 3084 how |= IFACE_FORCE_ADD; 3085 3086 return !iface_Add(arg->bundle->iface, &arg->bundle->ncp, &ifa, &peer, how); 3087 } 3088 3089 static int 3090 IfaceDeleteCommand(struct cmdargs const *arg) 3091 { 3092 struct ncpaddr ifa; 3093 struct in_addr ifa4; 3094 int ok; 3095 3096 if (arg->argc != arg->argn + 1) 3097 return -1; 3098 3099 if (!ncpaddr_aton(&ifa, NULL, arg->argv[arg->argn])) 3100 return -1; 3101 3102 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED && 3103 ncpaddr_getip4(&ifa, &ifa4) && 3104 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa4.s_addr) { 3105 log_Printf(LogWARN, "%s: Cannot remove active interface address\n", 3106 ncpaddr_ntoa(&ifa)); 3107 return 1; 3108 } 3109 3110 ok = iface_Delete(arg->bundle->iface, &arg->bundle->ncp, &ifa); 3111 if (!ok) { 3112 if (arg->cmd->args) 3113 ok = 1; 3114 else if (arg->prompt) 3115 prompt_Printf(arg->prompt, "%s: No such interface address\n", 3116 ncpaddr_ntoa(&ifa)); 3117 else 3118 log_Printf(LogWARN, "%s: No such interface address\n", 3119 ncpaddr_ntoa(&ifa)); 3120 } 3121 3122 return !ok; 3123 } 3124 3125 static int 3126 IfaceClearCommand(struct cmdargs const *arg) 3127 { 3128 int family, how; 3129 3130 family = 0; 3131 if (arg->argc == arg->argn + 1) { 3132 if (strcasecmp(arg->argv[arg->argn], "inet") == 0) 3133 family = AF_INET; 3134 #ifndef NOINET6 3135 else if (strcasecmp(arg->argv[arg->argn], "inet6") == 0) 3136 family = AF_INET6; 3137 #endif 3138 else 3139 return -1; 3140 } else if (arg->argc != arg->argn) 3141 return -1; 3142 3143 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED || 3144 arg->bundle->phys_type.all & PHYS_AUTO ? 3145 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL; 3146 iface_Clear(arg->bundle->iface, &arg->bundle->ncp, family, how); 3147 3148 return 0; 3149 } 3150 3151 static int 3152 SetProcTitle(struct cmdargs const *arg) 3153 { 3154 static char title[LINE_LEN]; 3155 char *argv[MAXARGS]; 3156 int argc = arg->argc - arg->argn; 3157 3158 if (arg->argc == arg->argn) { 3159 SetTitle(NULL); 3160 return 0; 3161 } 3162 3163 if (argc >= sizeof argv / sizeof argv[0]) { 3164 argc = sizeof argv / sizeof argv[0] - 1; 3165 log_Printf(LogWARN, "Truncating proc title to %d args\n", argc); 3166 } 3167 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 3168 Concatinate(title, sizeof title, argc, (const char *const *)argv); 3169 SetTitle(title); 3170 command_Free(argc, argv); 3171 3172 return 0; 3173 } 3174