1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 5 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 6 * Internet Initiative Japan, Inc (IIJ) 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 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_URGENT 33 141#define VAR_LOGOUT 34 142#define VAR_IFQUEUE 35 143#define VAR_MPPE 36 144#define VAR_IPV6CPRETRY 37 145#define VAR_RAD_ALIVE 38 146#define VAR_PPPOE 39 147#define VAR_PORT_ID 40 148 149/* ``accept|deny|disable|enable'' masks */ 150#define NEG_HISMASK (1) 151#define NEG_MYMASK (2) 152 153/* ``accept|deny|disable|enable'' values */ 154#define NEG_ACFCOMP 40 155#define NEG_CHAP05 41 156#define NEG_CHAP80 42 157#define NEG_CHAP80LM 43 158#define NEG_DEFLATE 44 159#define NEG_DNS 45 160#define NEG_ECHO 46 161#define NEG_ENDDISC 47 162#define NEG_LQR 48 163#define NEG_PAP 49 164#define NEG_PPPDDEFLATE 50 165#define NEG_PRED1 51 166#define NEG_PROTOCOMP 52 167#define NEG_SHORTSEQ 53 168#define NEG_VJCOMP 54 169#define NEG_MPPE 55 170#define NEG_CHAP81 56 171 172const char Version[] = "3.4.2"; 173 174static int ShowCommand(struct cmdargs const *); 175static int TerminalCommand(struct cmdargs const *); 176static int QuitCommand(struct cmdargs const *); 177static int OpenCommand(struct cmdargs const *); 178static int CloseCommand(struct cmdargs const *); 179static int DownCommand(struct cmdargs const *); 180static int SetCommand(struct cmdargs const *); 181static int LinkCommand(struct cmdargs const *); 182static int AddCommand(struct cmdargs const *); 183static int DeleteCommand(struct cmdargs const *); 184static int NegotiateCommand(struct cmdargs const *); 185static int ClearCommand(struct cmdargs const *); 186static int RunListCommand(struct cmdargs const *); 187static int IfaceNameCommand(struct cmdargs const *arg); 188static int IfaceAddCommand(struct cmdargs const *); 189static int IfaceDeleteCommand(struct cmdargs const *); 190static int IfaceClearCommand(struct cmdargs const *); 191static int SetProcTitle(struct cmdargs const *); 192#ifndef NONAT 193static int NatEnable(struct cmdargs const *); 194static int NatOption(struct cmdargs const *); 195#endif 196 197extern struct libalias *la; 198 199static const char * 200showcx(struct cmdtab const *cmd) 201{ 202 if (cmd->lauth & LOCAL_CX) 203 return "(c)"; 204 else if (cmd->lauth & LOCAL_CX_OPT) 205 return "(o)"; 206 207 return ""; 208} 209 210static int 211HelpCommand(struct cmdargs const *arg) 212{ 213 struct cmdtab const *cmd; 214 int n, cmax, dmax, cols, cxlen; 215 const char *cx; 216 217 if (!arg->prompt) { 218 log_Printf(LogWARN, "help: Cannot help without a prompt\n"); 219 return 0; 220 } 221 222 if (arg->argc > arg->argn) { 223 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++) 224 if ((cmd->lauth & arg->prompt->auth) && 225 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) || 226 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) { 227 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd)); 228 return 0; 229 } 230 return -1; 231 } 232 233 cmax = dmax = 0; 234 for (cmd = arg->cmdtab; cmd->func; cmd++) 235 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 236 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax) 237 cmax = n; 238 if ((n = strlen(cmd->helpmes)) > dmax) 239 dmax = n; 240 } 241 242 cols = 80 / (dmax + cmax + 3); 243 n = 0; 244 prompt_Printf(arg->prompt, "(o) = Optional context," 245 " (c) = Context required\n"); 246 for (cmd = arg->cmdtab; cmd->func; cmd++) 247 if (cmd->name && (cmd->lauth & arg->prompt->auth)) { 248 cx = showcx(cmd); 249 cxlen = cmax - strlen(cmd->name); 250 if (n % cols != 0) 251 prompt_Printf(arg->prompt, " "); 252 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s", 253 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes); 254 if (++n % cols == 0) 255 prompt_Printf(arg->prompt, "\n"); 256 } 257 if (n % cols != 0) 258 prompt_Printf(arg->prompt, "\n"); 259 260 return 0; 261} 262 263static int 264IdentCommand(struct cmdargs const *arg) 265{ 266 Concatinate(arg->cx->physical->link.lcp.cfg.ident, 267 sizeof arg->cx->physical->link.lcp.cfg.ident, 268 arg->argc - arg->argn, arg->argv + arg->argn); 269 return 0; 270} 271 272static int 273SendIdentification(struct cmdargs const *arg) 274{ 275 if (arg->cx->state < DATALINK_LCP) { 276 log_Printf(LogWARN, "sendident: link has not reached LCP\n"); 277 return 2; 278 } 279 return lcp_SendIdentification(&arg->cx->physical->link.lcp) ? 0 : 1; 280} 281 282static int 283CloneCommand(struct cmdargs const *arg) 284{ 285 char namelist[LINE_LEN]; 286 char *name; 287 int f; 288 289 if (arg->argc == arg->argn) 290 return -1; 291 292 namelist[sizeof namelist - 1] = '\0'; 293 for (f = arg->argn; f < arg->argc; f++) { 294 strncpy(namelist, arg->argv[f], sizeof namelist - 1); 295 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 296 bundle_DatalinkClone(arg->bundle, arg->cx, name); 297 } 298 299 return 0; 300} 301 302static int 303RemoveCommand(struct cmdargs const *arg) 304{ 305 if (arg->argc != arg->argn) 306 return -1; 307 308 if (arg->cx->state != DATALINK_CLOSED) { 309 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n"); 310 return 2; 311 } 312 313 bundle_DatalinkRemove(arg->bundle, arg->cx); 314 return 0; 315} 316 317static int 318RenameCommand(struct cmdargs const *arg) 319{ 320 if (arg->argc != arg->argn + 1) 321 return -1; 322 323 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn])) 324 return 0; 325 326 log_Printf(LogWARN, "%s -> %s: target name already exists\n", 327 arg->cx->name, arg->argv[arg->argn]); 328 return 1; 329} 330 331static int 332LoadCommand(struct cmdargs const *arg) 333{ 334 const char *err; 335 int n, mode; 336 337 mode = arg->bundle->phys_type.all; 338 339 if (arg->argn < arg->argc) { 340 for (n = arg->argn; n < arg->argc; n++) 341 if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) { 342 log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err); 343 return 1; 344 } 345 346 for (n = arg->argn; n < arg->argc; n++) { 347 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 348 system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx); 349 } 350 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]); 351 } else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) { 352 log_Printf(LogWARN, "default: %s\n", err); 353 return 1; 354 } else { 355 bundle_SetLabel(arg->bundle, "default"); 356 system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx); 357 bundle_SetLabel(arg->bundle, "default"); 358 } 359 360 return 0; 361} 362 363static int 364LogCommand(struct cmdargs const *arg) 365{ 366 char buf[LINE_LEN]; 367 368 if (arg->argn < arg->argc) { 369 char *argv[MAXARGS]; 370 int argc = arg->argc - arg->argn; 371 372 if (argc >= (int)(sizeof argv / sizeof argv[0])) { 373 argc = sizeof argv / sizeof argv[0] - 1; 374 log_Printf(LogWARN, "Truncating log command to %d args\n", argc); 375 } 376 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 377 Concatinate(buf, sizeof buf, argc, (const char *const *)argv); 378 log_Printf(LogLOG, "%s\n", buf); 379 command_Free(argc, argv); 380 return 0; 381 } 382 383 return -1; 384} 385 386static int 387SaveCommand(struct cmdargs const *arg __unused) 388{ 389 log_Printf(LogWARN, "save command is not yet implemented.\n"); 390 return 1; 391} 392 393static int 394DialCommand(struct cmdargs const *arg) 395{ 396 int res; 397 398 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO))) 399 || (!arg->cx && 400 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) { 401 log_Printf(LogWARN, "Manual dial is only available for auto and" 402 " interactive links\n"); 403 return 1; 404 } 405 406 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0) 407 return res; 408 409 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 410 411 return 0; 412} 413 414#define isinword(ch) (isalnum(ch) || (ch) == '_') 415 416static char * 417strstrword(char *big, const char *little) 418{ 419 /* Get the first occurrence of the word ``little'' in ``big'' */ 420 char *pos; 421 int len; 422 423 pos = big; 424 len = strlen(little); 425 426 while ((pos = strstr(pos, little)) != NULL) 427 if ((pos != big && isinword(pos[-1])) || isinword(pos[len])) 428 pos++; 429 else if (pos != big && pos[-1] == '\\') 430 memmove(pos - 1, pos, strlen(pos) + 1); 431 else 432 break; 433 434 return pos; 435} 436 437static char * 438subst(char *tgt, const char *oldstr, const char *newstr) 439{ 440 /* tgt is a malloc()d area... realloc() as necessary */ 441 char *word, *ntgt; 442 int ltgt, loldstr, lnewstr, pos; 443 444 if ((word = strstrword(tgt, oldstr)) == NULL) 445 return tgt; 446 447 ltgt = strlen(tgt) + 1; 448 loldstr = strlen(oldstr); 449 lnewstr = strlen(newstr); 450 do { 451 pos = word - tgt; 452 if (loldstr > lnewstr) 453 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr); 454 if (loldstr != lnewstr) { 455 ntgt = realloc(tgt, ltgt += lnewstr - loldstr); 456 if (ntgt == NULL) 457 break; /* Oh wonderful ! */ 458 word = ntgt + pos; 459 tgt = ntgt; 460 } 461 if (lnewstr > loldstr) 462 bcopy(word + loldstr, word + lnewstr, ltgt - pos - lnewstr); 463 bcopy(newstr, word, lnewstr); 464 } while ((word = strstrword(word, oldstr))); 465 466 return tgt; 467} 468 469static char * 470substip(char *tgt, const char *oldstr, struct in_addr ip) 471{ 472 return subst(tgt, oldstr, inet_ntoa(ip)); 473} 474 475static char * 476substlong(char *tgt, const char *oldstr, long l) 477{ 478 char buf[23]; 479 480 snprintf(buf, sizeof buf, "%ld", l); 481 482 return subst(tgt, oldstr, buf); 483} 484 485static char * 486substull(char *tgt, const char *oldstr, unsigned long long ull) 487{ 488 char buf[21]; 489 490 snprintf(buf, sizeof buf, "%llu", ull); 491 492 return subst(tgt, oldstr, buf); 493} 494 495 496#ifndef NOINET6 497static char * 498substipv6(char *tgt, const char *oldstr, const struct ncpaddr *ip) 499{ 500 return subst(tgt, oldstr, ncpaddr_ntoa(ip)); 501} 502 503#ifndef NORADIUS 504static char * 505substipv6prefix(char *tgt, const char *oldstr, const uint8_t *ipv6prefix) 506{ 507 uint8_t ipv6addr[INET6_ADDRSTRLEN]; 508 uint8_t prefix[INET6_ADDRSTRLEN + sizeof("/128") - 1]; 509 510 if (ipv6prefix) { 511 inet_ntop(AF_INET6, &ipv6prefix[2], ipv6addr, sizeof(ipv6addr)); 512 snprintf(prefix, sizeof(prefix), "%s/%d", ipv6addr, ipv6prefix[1]); 513 } else 514 prefix[0] = '\0'; 515 return subst(tgt, oldstr, prefix); 516} 517#endif 518#endif 519 520void 521command_Expand(char **nargv, int argc, char const *const *oargv, 522 struct bundle *bundle, int inc0, pid_t pid) 523{ 524 int arg, secs; 525 char uptime[20]; 526 unsigned long long oin, oout, pin, pout; 527 528 if (inc0) 529 arg = 0; /* Start at arg 0 */ 530 else { 531 nargv[0] = strdup(oargv[0]); 532 arg = 1; 533 } 534 535 secs = bundle_Uptime(bundle); 536 snprintf(uptime, sizeof uptime, "%d:%02d:%02d", 537 secs / 3600, (secs / 60) % 60, secs % 60); 538 oin = bundle->ncp.ipcp.throughput.OctetsIn; 539 oout = bundle->ncp.ipcp.throughput.OctetsOut; 540 pin = bundle->ncp.ipcp.throughput.PacketsIn; 541 pout = bundle->ncp.ipcp.throughput.PacketsOut; 542#ifndef NOINET6 543 oin += bundle->ncp.ipv6cp.throughput.OctetsIn; 544 oout += bundle->ncp.ipv6cp.throughput.OctetsOut; 545 pin += bundle->ncp.ipv6cp.throughput.PacketsIn; 546 pout += bundle->ncp.ipv6cp.throughput.PacketsOut; 547#endif 548 549 for (; arg < argc; arg++) { 550 nargv[arg] = strdup(oargv[arg]); 551 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name); 552 nargv[arg] = substip(nargv[arg], "DNS0", bundle->ncp.ipcp.ns.dns[0]); 553 nargv[arg] = substip(nargv[arg], "DNS1", bundle->ncp.ipcp.ns.dns[1]); 554 nargv[arg] = subst(nargv[arg], "ENDDISC", 555 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class, 556 bundle->ncp.mp.cfg.enddisc.address, 557 bundle->ncp.mp.cfg.enddisc.len)); 558 nargv[arg] = substip(nargv[arg], "HISADDR", bundle->ncp.ipcp.peer_ip); 559#ifndef NOINET6 560 nargv[arg] = substipv6(nargv[arg], "HISADDR6", &bundle->ncp.ipv6cp.hisaddr); 561#endif 562 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name); 563 nargv[arg] = substull(nargv[arg], "IPOCTETSIN", 564 bundle->ncp.ipcp.throughput.OctetsIn); 565 nargv[arg] = substull(nargv[arg], "IPOCTETSOUT", 566 bundle->ncp.ipcp.throughput.OctetsOut); 567 nargv[arg] = substull(nargv[arg], "IPPACKETSIN", 568 bundle->ncp.ipcp.throughput.PacketsIn); 569 nargv[arg] = substull(nargv[arg], "IPPACKETSOUT", 570 bundle->ncp.ipcp.throughput.PacketsOut); 571#ifndef NOINET6 572 nargv[arg] = substull(nargv[arg], "IPV6OCTETSIN", 573 bundle->ncp.ipv6cp.throughput.OctetsIn); 574 nargv[arg] = substull(nargv[arg], "IPV6OCTETSOUT", 575 bundle->ncp.ipv6cp.throughput.OctetsOut); 576 nargv[arg] = substull(nargv[arg], "IPV6PACKETSIN", 577 bundle->ncp.ipv6cp.throughput.PacketsIn); 578 nargv[arg] = substull(nargv[arg], "IPV6PACKETSOUT", 579 bundle->ncp.ipv6cp.throughput.PacketsOut); 580#endif 581 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle)); 582 nargv[arg] = substip(nargv[arg], "MYADDR", bundle->ncp.ipcp.my_ip); 583#ifndef NOINET6 584 nargv[arg] = substipv6(nargv[arg], "MYADDR6", &bundle->ncp.ipv6cp.myaddr); 585#ifndef NORADIUS 586 nargv[arg] = substipv6prefix(nargv[arg], "IPV6PREFIX", 587 bundle->radius.ipv6prefix); 588#endif 589#endif 590 nargv[arg] = substull(nargv[arg], "OCTETSIN", oin); 591 nargv[arg] = substull(nargv[arg], "OCTETSOUT", oout); 592 nargv[arg] = substull(nargv[arg], "PACKETSIN", pin); 593 nargv[arg] = substull(nargv[arg], "PACKETSOUT", pout); 594 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC", 595 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class, 596 bundle->ncp.mp.peer.enddisc.address, 597 bundle->ncp.mp.peer.enddisc.len)); 598 nargv[arg] = substlong(nargv[arg], "PROCESSID", pid); 599 if (server.cfg.port) 600 nargv[arg] = substlong(nargv[arg], "SOCKNAME", server.cfg.port); 601 else 602 nargv[arg] = subst(nargv[arg], "SOCKNAME", server.cfg.sockname); 603 nargv[arg] = subst(nargv[arg], "UPTIME", uptime); 604 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname); 605 nargv[arg] = subst(nargv[arg], "VERSION", Version); 606 } 607 nargv[arg] = NULL; 608} 609 610void 611command_Free(int argc, char **argv) 612{ 613 while (argc) { 614 free(*argv); 615 argc--; 616 argv++; 617 } 618} 619 620static int 621ShellCommand(struct cmdargs const *arg, int bg) 622{ 623 const char *shell; 624 pid_t shpid, pid; 625 626#ifdef SHELL_ONLY_INTERACTIVELY 627 /* we're only allowed to shell when we run ppp interactively */ 628 if (arg->prompt && arg->prompt->owner) { 629 log_Printf(LogWARN, "Can't start a shell from a network connection\n"); 630 return 1; 631 } 632#endif 633 634 if (arg->argc == arg->argn) { 635 if (!arg->prompt) { 636 log_Printf(LogWARN, "Can't start an interactive shell from" 637 " a config file\n"); 638 return 1; 639 } else if (arg->prompt->owner) { 640 log_Printf(LogWARN, "Can't start an interactive shell from" 641 " a socket connection\n"); 642 return 1; 643 } else if (bg) { 644 log_Printf(LogWARN, "Can only start an interactive shell in" 645 " the foreground mode\n"); 646 return 1; 647 } 648 } 649 650 pid = getpid(); 651 if ((shpid = fork()) == 0) { 652 int i, fd; 653 654 if ((shell = getenv("SHELL")) == NULL) 655 shell = _PATH_BSHELL; 656 657 timer_TermService(); 658 659 if (arg->prompt) 660 fd = arg->prompt->fd_out; 661 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { 662 log_Printf(LogALERT, "Failed to open %s: %s\n", 663 _PATH_DEVNULL, strerror(errno)); 664 exit(1); 665 } 666 dup2(fd, STDIN_FILENO); 667 dup2(fd, STDOUT_FILENO); 668 dup2(fd, STDERR_FILENO); 669 for (i = getdtablesize(); i > STDERR_FILENO; i--) 670 fcntl(i, F_SETFD, 1); 671 672#ifndef NOSUID 673 setuid(ID0realuid()); 674#endif 675 if (arg->argc > arg->argn) { 676 /* substitute pseudo args */ 677 char *argv[MAXARGS]; 678 int argc = arg->argc - arg->argn; 679 680 if (argc >= (int)(sizeof argv / sizeof argv[0])) { 681 argc = sizeof argv / sizeof argv[0] - 1; 682 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc); 683 } 684 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid); 685 if (bg) { 686 pid_t p; 687 688 p = getpid(); 689 if (daemon(1, 1) == -1) { 690 log_Printf(LogERROR, "%ld: daemon: %s\n", (long)p, strerror(errno)); 691 exit(1); 692 } 693 } else if (arg->prompt) 694 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]); 695 execvp(argv[0], argv); 696 } else { 697 if (arg->prompt) 698 printf("ppp: Pausing until %s finishes\n", shell); 699 prompt_TtyOldMode(arg->prompt); 700 execl(shell, shell, (char *)NULL); 701 } 702 703 log_Printf(LogWARN, "exec() of %s failed: %s\n", 704 arg->argc > arg->argn ? arg->argv[arg->argn] : shell, 705 strerror(errno)); 706 _exit(255); 707 } 708 709 if (shpid == (pid_t)-1) 710 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno)); 711 else { 712 int status; 713 waitpid(shpid, &status, 0); 714 } 715 716 if (arg->prompt && !arg->prompt->owner) 717 prompt_TtyCommandMode(arg->prompt); 718 719 return 0; 720} 721 722static int 723BgShellCommand(struct cmdargs const *arg) 724{ 725 if (arg->argc == arg->argn) 726 return -1; 727 return ShellCommand(arg, 1); 728} 729 730static int 731FgShellCommand(struct cmdargs const *arg) 732{ 733 return ShellCommand(arg, 0); 734} 735 736static int 737ResolvCommand(struct cmdargs const *arg) 738{ 739 if (arg->argc == arg->argn + 1) { 740 if (!strcasecmp(arg->argv[arg->argn], "reload")) 741 ipcp_LoadDNS(&arg->bundle->ncp.ipcp); 742 else if (!strcasecmp(arg->argv[arg->argn], "restore")) 743 ipcp_RestoreDNS(&arg->bundle->ncp.ipcp); 744 else if (!strcasecmp(arg->argv[arg->argn], "rewrite")) 745 ipcp_WriteDNS(&arg->bundle->ncp.ipcp); 746 else if (!strcasecmp(arg->argv[arg->argn], "readonly")) 747 arg->bundle->ncp.ipcp.ns.writable = 0; 748 else if (!strcasecmp(arg->argv[arg->argn], "writable")) 749 arg->bundle->ncp.ipcp.ns.writable = 1; 750 else 751 return -1; 752 753 return 0; 754 } 755 756 return -1; 757} 758 759#ifndef NONAT 760static struct cmdtab const NatCommands[] = 761{ 762 {"addr", NULL, nat_RedirectAddr, LOCAL_AUTH, 763 "static address translation", "nat addr [addr_local addr_alias]", NULL}, 764 {"deny_incoming", NULL, NatOption, LOCAL_AUTH, 765 "stop incoming connections", "nat deny_incoming yes|no", 766 (const void *) PKT_ALIAS_DENY_INCOMING}, 767 {"enable", NULL, NatEnable, LOCAL_AUTH, 768 "enable NAT", "nat enable yes|no", NULL}, 769 {"log", NULL, NatOption, LOCAL_AUTH, 770 "log NAT link creation", "nat log yes|no", 771 (const void *) PKT_ALIAS_LOG}, 772 {"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection", 773 "nat port proto localaddr:port[-port] aliasport[-aliasport]", NULL}, 774 {"proto", NULL, nat_RedirectProto, LOCAL_AUTH, "protocol redirection", 775 "nat proto proto localIP [publicIP [remoteIP]]", NULL}, 776 {"proxy", NULL, nat_ProxyRule, LOCAL_AUTH, 777 "proxy control", "nat proxy server host[:port] ...", NULL}, 778#ifndef NO_FW_PUNCH 779 {"punch_fw", NULL, nat_PunchFW, LOCAL_AUTH, 780 "firewall control", "nat punch_fw [base count]", NULL}, 781#endif 782 {"skinny_port", NULL, nat_SkinnyPort, LOCAL_AUTH, 783 "TCP port used by Skinny Station protocol", "nat skinny_port [port]", NULL}, 784 {"same_ports", NULL, NatOption, LOCAL_AUTH, 785 "try to leave port numbers unchanged", "nat same_ports yes|no", 786 (const void *) PKT_ALIAS_SAME_PORTS}, 787 {"target", NULL, nat_SetTarget, LOCAL_AUTH, 788 "Default address for incoming connections", "nat target addr", NULL}, 789 {"unregistered_only", NULL, NatOption, LOCAL_AUTH, 790 "translate unregistered (private) IP address space only", 791 "nat unregistered_only yes|no", 792 (const void *) PKT_ALIAS_UNREGISTERED_ONLY}, 793 {"use_sockets", NULL, NatOption, LOCAL_AUTH, 794 "allocate host sockets", "nat use_sockets yes|no", 795 (const void *) PKT_ALIAS_USE_SOCKETS}, 796 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 797 "Display this message", "nat help|? [command]", NatCommands}, 798 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 799}; 800#endif 801 802static struct cmdtab const AllowCommands[] = { 803 {"modes", "mode", AllowModes, LOCAL_AUTH, 804 "Only allow certain ppp modes", "allow modes mode...", NULL}, 805 {"users", "user", AllowUsers, LOCAL_AUTH, 806 "Only allow ppp access to certain users", "allow users logname...", NULL}, 807 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 808 "Display this message", "allow help|? [command]", AllowCommands}, 809 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 810}; 811 812static struct cmdtab const IfaceCommands[] = 813{ 814 {"add", NULL, IfaceAddCommand, LOCAL_AUTH, 815 "Add iface address", "iface add addr[/bits| mask] peer", NULL}, 816 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH, 817 "Add or change an iface address", "iface add! addr[/bits| mask] peer", 818 (void *)1}, 819 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH, 820 "Clear iface address(es)", "iface clear [INET | INET6]", NULL}, 821 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH, 822 "Delete iface address", "iface delete addr", NULL}, 823 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH, 824 "Delete iface address", "iface delete addr", (void *)1}, 825 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH, 826 "Delete iface address", "iface delete addr", (void *)1}, 827 {"name", NULL, IfaceNameCommand, LOCAL_AUTH, 828 "Set iface name", "iface name name", NULL}, 829 {"description", NULL, iface_Descr, LOCAL_AUTH, 830 "Set iface description", "iface description text", NULL}, 831 {"show", NULL, iface_Show, LOCAL_AUTH, 832 "Show iface address(es)", "iface show", NULL}, 833 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 834 "Display this message", "nat help|? [command]", IfaceCommands}, 835 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 836}; 837 838static struct cmdtab const Commands[] = { 839 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 840 "accept option request", "accept option ..", NULL}, 841 {"add", NULL, AddCommand, LOCAL_AUTH, 842 "add route", "add dest mask gateway", NULL}, 843 {NULL, "add!", AddCommand, LOCAL_AUTH, 844 "add or change route", "add! dest mask gateway", (void *)1}, 845 {"allow", "auth", RunListCommand, LOCAL_AUTH, 846 "Allow ppp access", "allow users|modes ....", AllowCommands}, 847 {"bg", "!bg", BgShellCommand, LOCAL_AUTH, 848 "Run a background command", "[!]bg command", NULL}, 849 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT, 850 "Clear throughput statistics", 851 "clear ipcp|ipv6cp|physical [current|overall|peak]...", NULL}, 852 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX, 853 "Clone a link", "clone newname...", NULL}, 854 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT, 855 "Close an FSM", "close [lcp|ccp]", NULL}, 856 {"delete", NULL, DeleteCommand, LOCAL_AUTH, 857 "delete route", "delete dest", NULL}, 858 {NULL, "delete!", DeleteCommand, LOCAL_AUTH, 859 "delete a route if it exists", "delete! dest", (void *)1}, 860 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 861 "Deny option request", "deny option ..", NULL}, 862 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT, 863 "Dial and login", "dial|call [system ...]", NULL}, 864 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 865 "Disable option", "disable option ..", NULL}, 866 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT, 867 "Generate a down event", "down [ccp|lcp]", NULL}, 868 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT, 869 "Enable option", "enable option ..", NULL}, 870 {"ident", NULL, IdentCommand, LOCAL_AUTH | LOCAL_CX, 871 "Set the link identity", "ident text...", NULL}, 872 {"iface", "interface", RunListCommand, LOCAL_AUTH, 873 "interface control", "iface option ...", IfaceCommands}, 874 {"link", "datalink", LinkCommand, LOCAL_AUTH, 875 "Link specific commands", "link name command ...", NULL}, 876 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT, 877 "Load settings", "load [system ...]", NULL}, 878 {"log", NULL, LogCommand, LOCAL_AUTH | LOCAL_CX_OPT, 879 "log information", "log word ...", NULL}, 880#ifndef NONAT 881 {"nat", "alias", RunListCommand, LOCAL_AUTH, 882 "NAT control", "nat option yes|no", NatCommands}, 883#endif 884 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT, 885 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1}, 886 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH, 887 "Password for manipulation", "passwd LocalPassword", NULL}, 888 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 889 "Quit PPP program", "quit|bye [all]", NULL}, 890 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX, 891 "Remove a link", "remove", NULL}, 892 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX, 893 "Rename a link", "rename name", NULL}, 894 {"resolv", NULL, ResolvCommand, LOCAL_AUTH, 895 "Manipulate resolv.conf", "resolv readonly|reload|restore|rewrite|writable", 896 NULL}, 897 {"save", NULL, SaveCommand, LOCAL_AUTH, 898 "Save settings", "save", NULL}, 899 {"sendident", NULL, SendIdentification, LOCAL_AUTH | LOCAL_CX, 900 "Transmit the link identity", "sendident", NULL}, 901 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT, 902 "Set parameters", "set[up] var value", NULL}, 903 {"shell", "!", FgShellCommand, LOCAL_AUTH, 904 "Run a subshell", "shell|! [sh command]", NULL}, 905 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT, 906 "Show status and stats", "show var", NULL}, 907 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX, 908 "Enter terminal mode", "term", NULL}, 909 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 910 "Display this message", "help|? [command]", Commands}, 911 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 912}; 913 914static int 915ShowEscape(struct cmdargs const *arg) 916{ 917 if (arg->cx->physical->async.cfg.EscMap[32]) { 918 int code, bit; 919 const char *sep = ""; 920 921 for (code = 0; code < 32; code++) 922 if (arg->cx->physical->async.cfg.EscMap[code]) 923 for (bit = 0; bit < 8; bit++) 924 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) { 925 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit); 926 sep = ", "; 927 } 928 prompt_Printf(arg->prompt, "\n"); 929 } 930 return 0; 931} 932 933static int 934ShowTimerList(struct cmdargs const *arg) 935{ 936 timer_Show(0, arg->prompt); 937 return 0; 938} 939 940static int 941ShowStopped(struct cmdargs const *arg) 942{ 943 prompt_Printf(arg->prompt, " Stopped Timer: LCP: "); 944 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load) 945 prompt_Printf(arg->prompt, "Disabled"); 946 else 947 prompt_Printf(arg->prompt, "%ld secs", 948 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS); 949 950 prompt_Printf(arg->prompt, ", CCP: "); 951 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load) 952 prompt_Printf(arg->prompt, "Disabled"); 953 else 954 prompt_Printf(arg->prompt, "%ld secs", 955 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS); 956 957 prompt_Printf(arg->prompt, "\n"); 958 959 return 0; 960} 961 962static int 963ShowVersion(struct cmdargs const *arg) 964{ 965 prompt_Printf(arg->prompt, "PPP Version %s\n", Version); 966 return 0; 967} 968 969static int 970ShowProtocolStats(struct cmdargs const *arg) 971{ 972 struct link *l = command_ChooseLink(arg); 973 974 prompt_Printf(arg->prompt, "%s:\n", l->name); 975 link_ReportProtocolStatus(l, arg->prompt); 976 return 0; 977} 978 979static struct cmdtab const ShowCommands[] = { 980 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH, 981 "bundle details", "show bundle", NULL}, 982 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT, 983 "CCP status", "show cpp", NULL}, 984 {"compress", NULL, sl_Show, LOCAL_AUTH, 985 "VJ compression stats", "show compress", NULL}, 986 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX, 987 "escape characters", "show escape", NULL}, 988 {"filter", NULL, filter_Show, LOCAL_AUTH, 989 "packet filters", "show filter [in|out|dial|alive]", NULL}, 990 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX, 991 "HDLC errors", "show hdlc", NULL}, 992 {"iface", "interface", iface_Show, LOCAL_AUTH, 993 "Interface status", "show iface", NULL}, 994 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH, 995 "IPCP status", "show ipcp", NULL}, 996#ifndef NOINET6 997 {"ipv6cp", NULL, ipv6cp_Show, LOCAL_AUTH, 998 "IPV6CP status", "show ipv6cp", NULL}, 999#endif 1000 {"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT, 1001 "Protocol layers", "show layers", NULL}, 1002 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX, 1003 "LCP status", "show lcp", NULL}, 1004 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX, 1005 "(high-level) link info", "show link", NULL}, 1006 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH, 1007 "available link names", "show links", NULL}, 1008 {"log", NULL, log_ShowLevel, LOCAL_AUTH, 1009 "log levels", "show log", NULL}, 1010 {"mem", NULL, mbuf_Show, LOCAL_AUTH, 1011 "mbuf allocations", "show mem", NULL}, 1012 {"ncp", NULL, ncp_Show, LOCAL_AUTH, 1013 "NCP status", "show ncp", NULL}, 1014 {"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX, 1015 "(low-level) link info", "show physical", NULL}, 1016 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH, 1017 "multilink setup", "show mp", NULL}, 1018 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT, 1019 "protocol summary", "show proto", NULL}, 1020 {"route", NULL, route_Show, LOCAL_AUTH, 1021 "routing table", "show route", NULL}, 1022 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX, 1023 "STOPPED timeout", "show stopped", NULL}, 1024 {"timers", NULL, ShowTimerList, LOCAL_AUTH, 1025 "alarm timers", "show timers", NULL}, 1026 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH, 1027 "version string", "show version", NULL}, 1028 {"who", NULL, log_ShowWho, LOCAL_AUTH, 1029 "client list", "show who", NULL}, 1030 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH, 1031 "Display this message", "show help|? [command]", ShowCommands}, 1032 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 1033}; 1034 1035static struct cmdtab const * 1036FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch) 1037{ 1038 int nmatch; 1039 int len; 1040 struct cmdtab const *found; 1041 1042 found = NULL; 1043 len = strlen(str); 1044 nmatch = 0; 1045 while (cmds->func) { 1046 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) { 1047 if (cmds->name[len] == '\0') { 1048 *pmatch = 1; 1049 return cmds; 1050 } 1051 nmatch++; 1052 found = cmds; 1053 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) { 1054 if (cmds->alias[len] == '\0') { 1055 *pmatch = 1; 1056 return cmds; 1057 } 1058 nmatch++; 1059 found = cmds; 1060 } 1061 cmds++; 1062 } 1063 *pmatch = nmatch; 1064 return found; 1065} 1066 1067static const char * 1068mkPrefix(int argc, char const *const *argv, char *tgt, int sz) 1069{ 1070 int f, tlen, len; 1071 1072 tlen = 0; 1073 for (f = 0; f < argc && tlen < sz - 2; f++) { 1074 if (f) 1075 tgt[tlen++] = ' '; 1076 len = strlen(argv[f]); 1077 if (len > sz - tlen - 1) 1078 len = sz - tlen - 1; 1079 strncpy(tgt+tlen, argv[f], len); 1080 tlen += len; 1081 } 1082 tgt[tlen] = '\0'; 1083 return tgt; 1084} 1085 1086static int 1087FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn, 1088 char const *const *argv, struct prompt *prompt, struct datalink *cx) 1089{ 1090 struct cmdtab const *cmd; 1091 int val = 1; 1092 int nmatch; 1093 struct cmdargs arg; 1094 char prefix[100]; 1095 1096 cmd = FindCommand(cmds, argv[argn], &nmatch); 1097 if (nmatch > 1) 1098 log_Printf(LogWARN, "%s: Ambiguous command\n", 1099 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1100 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) { 1101 if ((cmd->lauth & LOCAL_CX) && !cx) 1102 /* We've got no context, but we require it */ 1103 cx = bundle2datalink(bundle, NULL); 1104 1105 if ((cmd->lauth & LOCAL_CX) && !cx) 1106 log_Printf(LogWARN, "%s: No context (use the `link' command)\n", 1107 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1108 else { 1109 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1110 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n", 1111 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name); 1112 cx = NULL; 1113 } 1114 arg.cmdtab = cmds; 1115 arg.cmd = cmd; 1116 arg.argc = argc; 1117 arg.argn = argn+1; 1118 arg.argv = argv; 1119 arg.bundle = bundle; 1120 arg.cx = cx; 1121 arg.prompt = prompt; 1122 val = (*cmd->func) (&arg); 1123 } 1124 } else 1125 log_Printf(LogWARN, "%s: Invalid command\n", 1126 mkPrefix(argn+1, argv, prefix, sizeof prefix)); 1127 1128 if (val == -1) 1129 log_Printf(LogWARN, "usage: %s\n", cmd->syntax); 1130 else if (val) 1131 log_Printf(LogWARN, "%s: Failed %d\n", 1132 mkPrefix(argn+1, argv, prefix, sizeof prefix), val); 1133 1134 return val; 1135} 1136 1137int 1138command_Expand_Interpret(char *buff, int nb, char *argv[MAXARGS], int offset) 1139{ 1140 char buff2[LINE_LEN-offset]; 1141 1142 InterpretArg(buff, buff2); 1143 strncpy(buff, buff2, LINE_LEN - offset - 1); 1144 buff[LINE_LEN - offset - 1] = '\0'; 1145 1146 return command_Interpret(buff, nb, argv); 1147} 1148 1149int 1150command_Interpret(char *buff, int nb, char *argv[MAXARGS]) 1151{ 1152 char *cp; 1153 1154 if (nb > 0) { 1155 cp = buff + strcspn(buff, "\r\n"); 1156 if (cp) 1157 *cp = '\0'; 1158 return MakeArgs(buff, argv, MAXARGS, PARSE_REDUCE); 1159 } 1160 return 0; 1161} 1162 1163static int 1164arghidden(char const *const *argv, int n) 1165{ 1166 /* Is arg n of the given command to be hidden from the log ? */ 1167 1168 /* set authkey xxxxx */ 1169 /* set key xxxxx */ 1170 if (n == 2 && !strncasecmp(argv[0], "se", 2) && 1171 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2))) 1172 return 1; 1173 1174 /* passwd xxxxx */ 1175 if (n == 1 && !strncasecmp(argv[0], "p", 1)) 1176 return 1; 1177 1178 /* set server port xxxxx .... */ 1179 if (n == 3 && !strncasecmp(argv[0], "se", 2) && 1180 !strncasecmp(argv[1], "se", 2)) 1181 return 1; 1182 1183 return 0; 1184} 1185 1186void 1187command_Run(struct bundle *bundle, int argc, char const *const *argv, 1188 struct prompt *prompt, const char *label, struct datalink *cx) 1189{ 1190 if (argc > 0) { 1191 if (log_IsKept(LogCOMMAND)) { 1192 char buf[LINE_LEN]; 1193 int f; 1194 size_t n; 1195 1196 if (label) { 1197 strncpy(buf, label, sizeof buf - 3); 1198 buf[sizeof buf - 3] = '\0'; 1199 strcat(buf, ": "); 1200 n = strlen(buf); 1201 } else { 1202 *buf = '\0'; 1203 n = 0; 1204 } 1205 buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */ 1206 1207 for (f = 0; f < argc; f++) { 1208 if (n < sizeof buf - 1 && f) 1209 buf[n++] = ' '; 1210 if (arghidden(argv, f)) 1211 strncpy(buf+n, "********", sizeof buf - n - 1); 1212 else 1213 strncpy(buf+n, argv[f], sizeof buf - n - 1); 1214 n += strlen(buf+n); 1215 } 1216 log_Printf(LogCOMMAND, "%s\n", buf); 1217 } 1218 FindExec(bundle, Commands, argc, 0, argv, prompt, cx); 1219 } 1220} 1221 1222int 1223command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt, 1224 const char *label) 1225{ 1226 int argc; 1227 char *argv[MAXARGS]; 1228 1229 if ((argc = command_Expand_Interpret(buff, nb, argv, 0)) < 0) 1230 return 0; 1231 1232 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL); 1233 return 1; 1234} 1235 1236static int 1237ShowCommand(struct cmdargs const *arg) 1238{ 1239 if (!arg->prompt) 1240 log_Printf(LogWARN, "show: Cannot show without a prompt\n"); 1241 else if (arg->argc > arg->argn) 1242 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv, 1243 arg->prompt, arg->cx); 1244 else 1245 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n"); 1246 1247 return 0; 1248} 1249 1250static int 1251TerminalCommand(struct cmdargs const *arg) 1252{ 1253 if (!arg->prompt) { 1254 log_Printf(LogWARN, "term: Need a prompt\n"); 1255 return 1; 1256 } 1257 1258 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) { 1259 prompt_Printf(arg->prompt, "LCP state is [%s]\n", 1260 State2Nam(arg->cx->physical->link.lcp.fsm.state)); 1261 return 1; 1262 } 1263 1264 datalink_Up(arg->cx, 0, 0); 1265 prompt_TtyTermMode(arg->prompt, arg->cx); 1266 return 0; 1267} 1268 1269static int 1270QuitCommand(struct cmdargs const *arg) 1271{ 1272 if (!arg->prompt || prompt_IsController(arg->prompt) || 1273 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") && 1274 (arg->prompt->auth & LOCAL_AUTH))) 1275 Cleanup(); 1276 if (arg->prompt) 1277 prompt_Destroy(arg->prompt, 1); 1278 1279 return 0; 1280} 1281 1282static int 1283OpenCommand(struct cmdargs const *arg) 1284{ 1285 if (arg->argc == arg->argn) 1286 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1); 1287 else if (arg->argc == arg->argn + 1) { 1288 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1289 struct datalink *cx = arg->cx ? 1290 arg->cx : bundle2datalink(arg->bundle, NULL); 1291 if (cx) { 1292 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 1293 fsm_Reopen(&cx->physical->link.lcp.fsm); 1294 else 1295 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1); 1296 } else 1297 log_Printf(LogWARN, "open lcp: You must specify a link\n"); 1298 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1299 struct fsm *fp; 1300 1301 fp = &command_ChooseLink(arg)->ccp.fsm; 1302 if (fp->link->lcp.fsm.state != ST_OPENED) 1303 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n"); 1304 else if (fp->state == ST_OPENED) 1305 fsm_Reopen(fp); 1306 else { 1307 fp->open_mode = 0; /* Not passive any more */ 1308 if (fp->state == ST_STOPPED) { 1309 fsm_Down(fp); 1310 fsm_Up(fp); 1311 } else { 1312 fsm_Up(fp); 1313 fsm_Open(fp); 1314 } 1315 } 1316 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) { 1317 if (arg->cx) 1318 log_Printf(LogWARN, "open ipcp: You need not specify a link\n"); 1319 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 1320 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm); 1321 else 1322 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1); 1323 } else 1324 return -1; 1325 } else 1326 return -1; 1327 1328 return 0; 1329} 1330 1331static int 1332CloseCommand(struct cmdargs const *arg) 1333{ 1334 if (arg->argc == arg->argn) 1335 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN); 1336 else if (arg->argc == arg->argn + 1) { 1337 if (!strcasecmp(arg->argv[arg->argn], "lcp")) 1338 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP); 1339 else if (!strcasecmp(arg->argv[arg->argn], "ccp") || 1340 !strcasecmp(arg->argv[arg->argn], "ccp!")) { 1341 struct fsm *fp; 1342 1343 fp = &command_ChooseLink(arg)->ccp.fsm; 1344 if (fp->state == ST_OPENED) { 1345 fsm_Close(fp); 1346 if (arg->argv[arg->argn][3] == '!') 1347 fp->open_mode = 0; /* Stay ST_CLOSED */ 1348 else 1349 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */ 1350 } 1351 } else 1352 return -1; 1353 } else 1354 return -1; 1355 1356 return 0; 1357} 1358 1359static int 1360DownCommand(struct cmdargs const *arg) 1361{ 1362 if (arg->argc == arg->argn) { 1363 if (arg->cx) 1364 datalink_Down(arg->cx, CLOSE_STAYDOWN); 1365 else 1366 bundle_Down(arg->bundle, CLOSE_STAYDOWN); 1367 } else if (arg->argc == arg->argn + 1) { 1368 if (!strcasecmp(arg->argv[arg->argn], "lcp")) { 1369 if (arg->cx) 1370 datalink_Down(arg->cx, CLOSE_LCP); 1371 else 1372 bundle_Down(arg->bundle, CLOSE_LCP); 1373 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) { 1374 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm : 1375 &arg->bundle->ncp.mp.link.ccp.fsm; 1376 fsm2initial(fp); 1377 } else 1378 return -1; 1379 } else 1380 return -1; 1381 1382 return 0; 1383} 1384 1385static int 1386SetModemSpeed(struct cmdargs const *arg) 1387{ 1388 long speed; 1389 char *end; 1390 1391 if (arg->argc > arg->argn && *arg->argv[arg->argn]) { 1392 if (arg->argc > arg->argn+1) { 1393 log_Printf(LogWARN, "SetModemSpeed: Too many arguments\n"); 1394 return -1; 1395 } 1396 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) { 1397 physical_SetSync(arg->cx->physical); 1398 return 0; 1399 } 1400 end = NULL; 1401 speed = strtol(arg->argv[arg->argn], &end, 10); 1402 if (*end || speed < 0) { 1403 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", 1404 arg->argv[arg->argn]); 1405 return -1; 1406 } 1407 if (physical_SetSpeed(arg->cx->physical, speed)) 1408 return 0; 1409 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]); 1410 } else 1411 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n"); 1412 1413 return -1; 1414} 1415 1416static int 1417SetStoppedTimeout(struct cmdargs const *arg) 1418{ 1419 struct link *l = &arg->cx->physical->link; 1420 1421 l->lcp.fsm.StoppedTimer.load = 0; 1422 l->ccp.fsm.StoppedTimer.load = 0; 1423 if (arg->argc <= arg->argn+2) { 1424 if (arg->argc > arg->argn) { 1425 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS; 1426 if (arg->argc > arg->argn+1) 1427 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS; 1428 } 1429 return 0; 1430 } 1431 return -1; 1432} 1433 1434static int 1435SetServer(struct cmdargs const *arg) 1436{ 1437 int res = -1; 1438 1439 if (arg->argc > arg->argn && arg->argc < arg->argn+4) { 1440 const char *port, *passwd, *mask; 1441 size_t mlen; 1442 1443 /* What's what ? */ 1444 port = arg->argv[arg->argn]; 1445 if (arg->argc == arg->argn + 2) { 1446 passwd = arg->argv[arg->argn+1]; 1447 mask = NULL; 1448 } else if (arg->argc == arg->argn + 3) { 1449 passwd = arg->argv[arg->argn+1]; 1450 mask = arg->argv[arg->argn+2]; 1451 mlen = strlen(mask); 1452 if (mlen == 0 || mlen > 4 || strspn(mask, "01234567") != mlen || 1453 (mlen == 4 && *mask != '0')) { 1454 log_Printf(LogWARN, "%s %s: %s: Invalid mask\n", 1455 arg->argv[arg->argn - 2], arg->argv[arg->argn - 1], mask); 1456 return -1; 1457 } 1458 } else if (arg->argc != arg->argn + 1) 1459 return -1; 1460 else if (strcasecmp(port, "none") == 0) { 1461 if (server_Clear(arg->bundle)) 1462 log_Printf(LogPHASE, "Disabled server socket\n"); 1463 return 0; 1464 } else if (strcasecmp(port, "open") == 0) { 1465 switch (server_Reopen(arg->bundle)) { 1466 case SERVER_OK: 1467 return 0; 1468 case SERVER_FAILED: 1469 log_Printf(LogWARN, "Failed to reopen server port\n"); 1470 return 1; 1471 case SERVER_UNSET: 1472 log_Printf(LogWARN, "Cannot reopen unset server socket\n"); 1473 return 1; 1474 default: 1475 break; 1476 } 1477 return -1; 1478 } else if (strcasecmp(port, "closed") == 0) { 1479 if (server_Close(arg->bundle)) 1480 log_Printf(LogPHASE, "Closed server socket\n"); 1481 else 1482 log_Printf(LogWARN, "Server socket not open\n"); 1483 1484 return 0; 1485 } else 1486 return -1; 1487 1488 strncpy(server.cfg.passwd, passwd, sizeof server.cfg.passwd - 1); 1489 server.cfg.passwd[sizeof server.cfg.passwd - 1] = '\0'; 1490 1491 if (*port == '/') { 1492 mode_t imask; 1493 char *ptr, name[LINE_LEN + 12]; 1494 1495 if (mask == NULL) 1496 imask = (mode_t)-1; 1497 else for (imask = mlen = 0; mask[mlen]; mlen++) 1498 imask = (imask * 8) + mask[mlen] - '0'; 1499 1500 ptr = strstr(port, "%d"); 1501 if (ptr) { 1502 snprintf(name, sizeof name, "%.*s%d%s", 1503 (int)(ptr - port), port, arg->bundle->unit, ptr + 2); 1504 port = name; 1505 } 1506 res = server_LocalOpen(arg->bundle, port, imask); 1507 } else { 1508 int iport, add = 0; 1509 1510 if (mask != NULL) 1511 return -1; 1512 1513 if (*port == '+') { 1514 port++; 1515 add = 1; 1516 } 1517 if (strspn(port, "0123456789") != strlen(port)) { 1518 struct servent *s; 1519 1520 if ((s = getservbyname(port, "tcp")) == NULL) { 1521 iport = 0; 1522 log_Printf(LogWARN, "%s: Invalid port or service\n", port); 1523 } else 1524 iport = ntohs(s->s_port); 1525 } else 1526 iport = atoi(port); 1527 1528 if (iport) { 1529 if (add) 1530 iport += arg->bundle->unit; 1531 res = server_TcpOpen(arg->bundle, iport); 1532 } else 1533 res = -1; 1534 } 1535 } 1536 1537 return res; 1538} 1539 1540static int 1541SetEscape(struct cmdargs const *arg) 1542{ 1543 int code; 1544 int argc = arg->argc - arg->argn; 1545 char const *const *argv = arg->argv + arg->argn; 1546 1547 for (code = 0; code < 33; code++) 1548 arg->cx->physical->async.cfg.EscMap[code] = 0; 1549 1550 while (argc-- > 0) { 1551 sscanf(*argv++, "%x", &code); 1552 code &= 0xff; 1553 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7)); 1554 arg->cx->physical->async.cfg.EscMap[32] = 1; 1555 } 1556 return 0; 1557} 1558 1559static int 1560SetInterfaceAddr(struct cmdargs const *arg) 1561{ 1562 struct ncp *ncp = &arg->bundle->ncp; 1563 struct ncpaddr ncpaddr; 1564 const char *hisaddr; 1565 1566 if (arg->argc > arg->argn + 4) 1567 return -1; 1568 1569 hisaddr = NULL; 1570 memset(&ncp->ipcp.cfg.my_range, '\0', sizeof ncp->ipcp.cfg.my_range); 1571 memset(&ncp->ipcp.cfg.peer_range, '\0', sizeof ncp->ipcp.cfg.peer_range); 1572 ncp->ipcp.cfg.HaveTriggerAddress = 0; 1573 ncp->ipcp.cfg.netmask.s_addr = INADDR_ANY; 1574 iplist_reset(&ncp->ipcp.cfg.peer_list); 1575 1576 if (arg->argc > arg->argn) { 1577 if (!ncprange_aton(&ncp->ipcp.cfg.my_range, ncp, arg->argv[arg->argn])) 1578 return 1; 1579 if (arg->argc > arg->argn+1) { 1580 hisaddr = arg->argv[arg->argn+1]; 1581 if (arg->argc > arg->argn+2) { 1582 ncp->ipcp.ifmask = ncp->ipcp.cfg.netmask = 1583 GetIpAddr(arg->argv[arg->argn+2]); 1584 if (arg->argc > arg->argn+3) { 1585 ncp->ipcp.cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]); 1586 ncp->ipcp.cfg.HaveTriggerAddress = 1; 1587 } 1588 } 1589 } 1590 } 1591 1592 /* 0.0.0.0 means any address (0 bits) */ 1593 ncprange_getaddr(&ncp->ipcp.cfg.my_range, &ncpaddr); 1594 ncpaddr_getip4(&ncpaddr, &ncp->ipcp.my_ip); 1595 if (ncp->ipcp.my_ip.s_addr == INADDR_ANY) 1596 ncprange_setwidth(&ncp->ipcp.cfg.my_range, 0); 1597 bundle_AdjustFilters(arg->bundle, &ncpaddr, NULL); 1598 1599 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr, 1600 arg->bundle->phys_type.all & PHYS_AUTO)) 1601 return 4; 1602 1603 return 0; 1604} 1605 1606static int 1607SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq, 1608 u_int *maxtrm, int def) 1609{ 1610 if (argc == 0) { 1611 *timeout = DEF_FSMRETRY; 1612 *maxreq = def; 1613 if (maxtrm != NULL) 1614 *maxtrm = def; 1615 } else { 1616 long l = atol(argv[0]); 1617 1618 if (l < MIN_FSMRETRY) { 1619 log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n", 1620 l, MIN_FSMRETRY); 1621 return 1; 1622 } else 1623 *timeout = l; 1624 1625 if (argc > 1) { 1626 l = atol(argv[1]); 1627 if (l < 1) { 1628 log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l); 1629 l = 1; 1630 } 1631 *maxreq = l; 1632 1633 if (argc > 2 && maxtrm != NULL) { 1634 l = atol(argv[2]); 1635 if (l < 1) { 1636 log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l); 1637 l = 1; 1638 } 1639 *maxtrm = l; 1640 } 1641 } 1642 } 1643 1644 return 0; 1645} 1646 1647static int 1648SetVariable(struct cmdargs const *arg) 1649{ 1650 long long_val, param = (long)arg->cmd->args; 1651 int mode, dummyint, f, first, res; 1652 u_short *change; 1653 const char *argp; 1654 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 1655 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 1656 struct in_addr *ipaddr; 1657 struct ncpaddr ncpaddr[2]; 1658 1659 if (arg->argc > arg->argn) 1660 argp = arg->argv[arg->argn]; 1661 else 1662 argp = ""; 1663 1664 res = 0; 1665 1666 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 1667 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n", 1668 arg->cmd->name); 1669 return 1; 1670 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 1671 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n", 1672 arg->cmd->name, cx->name); 1673 cx = NULL; 1674 } 1675 1676 switch (param) { 1677 case VAR_AUTHKEY: 1678 strncpy(arg->bundle->cfg.auth.key, argp, 1679 sizeof arg->bundle->cfg.auth.key - 1); 1680 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0'; 1681 break; 1682 1683 case VAR_AUTHNAME: 1684 switch (bundle_Phase(arg->bundle)) { 1685 default: 1686 log_Printf(LogWARN, "Altering authname while at phase %s\n", 1687 bundle_PhaseName(arg->bundle)); 1688 /* drop through */ 1689 case PHASE_DEAD: 1690 case PHASE_ESTABLISH: 1691 strncpy(arg->bundle->cfg.auth.name, argp, 1692 sizeof arg->bundle->cfg.auth.name - 1); 1693 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0'; 1694 break; 1695 } 1696 break; 1697 1698 case VAR_AUTOLOAD: 1699 if (arg->argc == arg->argn + 3) { 1700 int v1, v2, v3; 1701 char *end; 1702 1703 v1 = strtol(arg->argv[arg->argn], &end, 0); 1704 if (v1 < 0 || *end) { 1705 log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n", 1706 arg->argv[arg->argn]); 1707 res = 1; 1708 break; 1709 } 1710 1711 v2 = strtol(arg->argv[arg->argn + 1], &end, 0); 1712 if (v2 < 0 || *end) { 1713 log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n", 1714 arg->argv[arg->argn + 1]); 1715 res = 1; 1716 break; 1717 } 1718 if (v2 < v1) { 1719 v3 = v1; 1720 v1 = v2; 1721 v2 = v3; 1722 } 1723 1724 v3 = strtol(arg->argv[arg->argn + 2], &end, 0); 1725 if (v3 <= 0 || *end) { 1726 log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n", 1727 arg->argv[arg->argn + 2]); 1728 res = 1; 1729 break; 1730 } 1731 1732 arg->bundle->ncp.mp.cfg.autoload.min = v1; 1733 arg->bundle->ncp.mp.cfg.autoload.max = v2; 1734 arg->bundle->ncp.mp.cfg.autoload.period = v3; 1735 mp_RestartAutoloadTimer(&arg->bundle->ncp.mp); 1736 } else { 1737 log_Printf(LogWARN, "Set autoload requires three arguments\n"); 1738 res = 1; 1739 } 1740 break; 1741 1742 case VAR_DIAL: 1743 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1); 1744 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0'; 1745 break; 1746 1747 case VAR_LOGIN: 1748 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1); 1749 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0'; 1750 break; 1751 1752 case VAR_WINSIZE: 1753 if (arg->argc > arg->argn) { 1754 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]); 1755 if (l->ccp.cfg.deflate.out.winsize < 8 || 1756 l->ccp.cfg.deflate.out.winsize > 15) { 1757 log_Printf(LogWARN, "%d: Invalid outgoing window size\n", 1758 l->ccp.cfg.deflate.out.winsize); 1759 l->ccp.cfg.deflate.out.winsize = 15; 1760 } 1761 if (arg->argc > arg->argn+1) { 1762 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]); 1763 if (l->ccp.cfg.deflate.in.winsize < 8 || 1764 l->ccp.cfg.deflate.in.winsize > 15) { 1765 log_Printf(LogWARN, "%d: Invalid incoming window size\n", 1766 l->ccp.cfg.deflate.in.winsize); 1767 l->ccp.cfg.deflate.in.winsize = 15; 1768 } 1769 } else 1770 l->ccp.cfg.deflate.in.winsize = 0; 1771 } else { 1772 log_Printf(LogWARN, "No window size specified\n"); 1773 res = 1; 1774 } 1775 break; 1776 1777#ifndef NODES 1778 case VAR_MPPE: 1779 if (arg->argc > arg->argn + 2) { 1780 res = -1; 1781 break; 1782 } 1783 1784 if (arg->argc == arg->argn) { 1785 l->ccp.cfg.mppe.keybits = 0; 1786 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1787 l->ccp.cfg.mppe.required = 0; 1788 break; 1789 } 1790 1791 if (!strcmp(argp, "*")) 1792 long_val = 0; 1793 else { 1794 long_val = atol(argp); 1795 if (long_val != 40 && long_val != 56 && long_val != 128) { 1796 log_Printf(LogWARN, "%s: Invalid bits value\n", argp); 1797 res = -1; 1798 break; 1799 } 1800 } 1801 1802 if (arg->argc == arg->argn + 2) { 1803 if (!strcmp(arg->argv[arg->argn + 1], "*")) 1804 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1805 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateless")) 1806 l->ccp.cfg.mppe.state = MPPE_STATELESS; 1807 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateful")) 1808 l->ccp.cfg.mppe.state = MPPE_STATEFUL; 1809 else { 1810 log_Printf(LogWARN, "%s: Invalid state value\n", 1811 arg->argv[arg->argn + 1]); 1812 res = -1; 1813 break; 1814 } 1815 } else 1816 l->ccp.cfg.mppe.state = MPPE_ANYSTATE; 1817 l->ccp.cfg.mppe.keybits = long_val; 1818 l->ccp.cfg.mppe.required = 1; 1819 break; 1820#endif 1821 1822 case VAR_DEVICE: 1823 physical_SetDeviceList(cx->physical, arg->argc - arg->argn, 1824 arg->argv + arg->argn); 1825 break; 1826 1827 case VAR_ACCMAP: 1828 if (arg->argc > arg->argn) { 1829 u_long ulong_val; 1830 sscanf(argp, "%lx", &ulong_val); 1831 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val; 1832 } else { 1833 log_Printf(LogWARN, "No accmap specified\n"); 1834 res = 1; 1835 } 1836 break; 1837 1838 case VAR_MODE: 1839 mode = Nam2mode(argp); 1840 if (mode == PHYS_NONE || mode == PHYS_ALL) { 1841 log_Printf(LogWARN, "%s: Invalid mode\n", argp); 1842 res = -1; 1843 break; 1844 } 1845 bundle_SetMode(arg->bundle, cx, mode); 1846 break; 1847 1848 case VAR_MRRU: 1849 switch (bundle_Phase(arg->bundle)) { 1850 case PHASE_DEAD: 1851 break; 1852 case PHASE_ESTABLISH: 1853 /* Make sure none of our links are DATALINK_LCP or greater */ 1854 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 1855 log_Printf(LogWARN, "mrru: Only changeable before LCP negotiations\n"); 1856 res = 1; 1857 break; 1858 } 1859 break; 1860 default: 1861 log_Printf(LogWARN, "mrru: Only changeable at phase DEAD/ESTABLISH\n"); 1862 res = 1; 1863 break; 1864 } 1865 if (res != 0) 1866 break; 1867 long_val = atol(argp); 1868 if (long_val && long_val < MIN_MRU) { 1869 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU); 1870 res = 1; 1871 break; 1872 } else if (long_val > MAX_MRU) { 1873 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU); 1874 res = 1; 1875 break; 1876 } else 1877 arg->bundle->ncp.mp.cfg.mrru = long_val; 1878 break; 1879 1880 case VAR_MRU: 1881 long_val = 0; /* silence gcc */ 1882 change = NULL; /* silence gcc */ 1883 switch(arg->argc - arg->argn) { 1884 case 1: 1885 if (argp[strspn(argp, "0123456789")] != '\0') { 1886 res = -1; 1887 break; 1888 } 1889 /*FALLTHRU*/ 1890 case 0: 1891 long_val = atol(argp); 1892 change = &l->lcp.cfg.mru; 1893 if (long_val > l->lcp.cfg.max_mru) { 1894 log_Printf(LogWARN, "MRU %ld: too large - max set to %d\n", long_val, 1895 l->lcp.cfg.max_mru); 1896 res = 1; 1897 break; 1898 } 1899 break; 1900 case 2: 1901 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1902 res = -1; 1903 break; 1904 } 1905 long_val = atol(arg->argv[arg->argn + 1]); 1906 change = &l->lcp.cfg.max_mru; 1907 if (long_val > MAX_MRU) { 1908 log_Printf(LogWARN, "MRU %ld: too large - maximum is %d\n", long_val, 1909 MAX_MRU); 1910 res = 1; 1911 break; 1912 } 1913 break; 1914 default: 1915 res = -1; 1916 break; 1917 } 1918 if (res != 0) 1919 break; 1920 1921 if (long_val == 0) 1922 *change = 0; 1923 else if (long_val < MIN_MRU) { 1924 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU); 1925 res = 1; 1926 break; 1927 } else if (long_val > MAX_MRU) { 1928 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU); 1929 res = 1; 1930 break; 1931 } else 1932 *change = long_val; 1933 if (l->lcp.cfg.mru > *change) 1934 l->lcp.cfg.mru = *change; 1935 break; 1936 1937 case VAR_MTU: 1938 long_val = 0; /* silence gcc */ 1939 change = NULL; /* silence gcc */ 1940 switch(arg->argc - arg->argn) { 1941 case 1: 1942 if (argp[strspn(argp, "0123456789")] != '\0') { 1943 res = -1; 1944 break; 1945 } 1946 /*FALLTHRU*/ 1947 case 0: 1948 long_val = atol(argp); 1949 change = &l->lcp.cfg.mtu; 1950 if (long_val > l->lcp.cfg.max_mtu) { 1951 log_Printf(LogWARN, "MTU %ld: too large - max set to %d\n", long_val, 1952 l->lcp.cfg.max_mtu); 1953 res = 1; 1954 break; 1955 } 1956 break; 1957 case 2: 1958 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) { 1959 res = -1; 1960 break; 1961 } 1962 long_val = atol(arg->argv[arg->argn + 1]); 1963 change = &l->lcp.cfg.max_mtu; 1964 if (long_val > MAX_MTU) { 1965 log_Printf(LogWARN, "MTU %ld: too large - maximum is %d\n", long_val, 1966 MAX_MTU); 1967 res = 1; 1968 break; 1969 } 1970 break; 1971 default: 1972 res = -1; 1973 break; 1974 } 1975 1976 if (res != 0) 1977 break; 1978 1979 if (long_val && long_val < MIN_MTU) { 1980 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU); 1981 res = 1; 1982 break; 1983 } else if (long_val > MAX_MTU) { 1984 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU); 1985 res = 1; 1986 break; 1987 } else 1988 *change = long_val; 1989 if (l->lcp.cfg.mtu > *change) 1990 l->lcp.cfg.mtu = *change; 1991 break; 1992 1993 case VAR_OPENMODE: 1994 if (strcasecmp(argp, "active") == 0) 1995 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ? 1996 atoi(arg->argv[arg->argn+1]) : 1; 1997 else if (strcasecmp(argp, "passive") == 0) 1998 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE; 1999 else { 2000 log_Printf(LogWARN, "%s: Invalid openmode\n", argp); 2001 res = 1; 2002 } 2003 break; 2004 2005 case VAR_PHONE: 2006 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1); 2007 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0'; 2008 cx->phone.alt = cx->phone.next = NULL; 2009 break; 2010 2011 case VAR_HANGUP: 2012 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1); 2013 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0'; 2014 break; 2015 2016 case VAR_IFQUEUE: 2017 long_val = atol(argp); 2018 arg->bundle->cfg.ifqueue = long_val < 0 ? 0 : long_val; 2019 break; 2020 2021 case VAR_LOGOUT: 2022 strncpy(cx->cfg.script.logout, argp, sizeof cx->cfg.script.logout - 1); 2023 cx->cfg.script.logout[sizeof cx->cfg.script.logout - 1] = '\0'; 2024 break; 2025 2026 case VAR_IDLETIMEOUT: 2027 if (arg->argc > arg->argn+2) { 2028 log_Printf(LogWARN, "Too many idle timeout values\n"); 2029 res = 1; 2030 } else if (arg->argc == arg->argn) { 2031 log_Printf(LogWARN, "Too few idle timeout values\n"); 2032 res = 1; 2033 } else { 2034 unsigned long timeout, min; 2035 2036 timeout = strtoul(argp, NULL, 10); 2037 min = arg->bundle->cfg.idle.min_timeout; 2038 if (arg->argc == arg->argn + 2) 2039 min = strtoul(arg->argv[arg->argn + 1], NULL, 10); 2040 bundle_SetIdleTimer(arg->bundle, timeout, min); 2041 } 2042 break; 2043 2044#ifndef NORADIUS 2045 case VAR_RAD_ALIVE: 2046 if (arg->argc > arg->argn + 2) { 2047 log_Printf(LogWARN, "Too many RADIUS alive interval values\n"); 2048 res = 1; 2049 } else if (arg->argc == arg->argn) { 2050 log_Printf(LogWARN, "Too few RADIUS alive interval values\n"); 2051 res = 1; 2052 } else { 2053 arg->bundle->radius.alive.interval = atoi(argp); 2054 if (arg->bundle->radius.alive.interval && !*arg->bundle->radius.cfg.file) { 2055 log_Printf(LogWARN, "rad_alive requires radius to be configured\n"); 2056 res = 1; 2057 } else if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) { 2058 if (arg->bundle->radius.alive.interval) 2059 radius_StartTimer(arg->bundle); 2060 else 2061 radius_StopTimer(&arg->bundle->radius); 2062 } 2063 } 2064 break; 2065#endif 2066 2067 case VAR_LQRPERIOD: 2068 long_val = atol(argp); 2069 if (long_val < MIN_LQRPERIOD) { 2070 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n", 2071 long_val, MIN_LQRPERIOD); 2072 res = 1; 2073 } else 2074 l->lcp.cfg.lqrperiod = long_val; 2075 break; 2076 2077 case VAR_LCPRETRY: 2078 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2079 &cx->physical->link.lcp.cfg.fsm.timeout, 2080 &cx->physical->link.lcp.cfg.fsm.maxreq, 2081 &cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2082 break; 2083 2084 case VAR_CHAPRETRY: 2085 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2086 &cx->chap.auth.cfg.fsm.timeout, 2087 &cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES); 2088 break; 2089 2090 case VAR_PAPRETRY: 2091 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2092 &cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq, 2093 NULL, DEF_FSMAUTHTRIES); 2094 break; 2095 2096 case VAR_CCPRETRY: 2097 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2098 &l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq, 2099 &l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2100 break; 2101 2102 case VAR_IPCPRETRY: 2103 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2104 &arg->bundle->ncp.ipcp.cfg.fsm.timeout, 2105 &arg->bundle->ncp.ipcp.cfg.fsm.maxreq, 2106 &arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2107 break; 2108 2109#ifndef NOINET6 2110 case VAR_IPV6CPRETRY: 2111 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn, 2112 &arg->bundle->ncp.ipv6cp.cfg.fsm.timeout, 2113 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxreq, 2114 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxtrm, DEF_FSMTRIES); 2115 break; 2116#endif 2117 2118 case VAR_NBNS: 2119 case VAR_DNS: 2120 if (param == VAR_DNS) { 2121 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.dns; 2122 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_NONE; 2123 } else { 2124 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.nbns; 2125 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_ANY; 2126 } 2127 2128 if (arg->argc > arg->argn) { 2129 ncpaddr_aton(ncpaddr, &arg->bundle->ncp, arg->argv[arg->argn]); 2130 if (!ncpaddr_getip4(ncpaddr, ipaddr)) 2131 return -1; 2132 if (arg->argc > arg->argn+1) { 2133 ncpaddr_aton(ncpaddr + 1, &arg->bundle->ncp, arg->argv[arg->argn + 1]); 2134 if (!ncpaddr_getip4(ncpaddr + 1, ipaddr + 1)) 2135 return -1; 2136 } 2137 2138 if (ipaddr[0].s_addr == INADDR_ANY) { 2139 ipaddr[0] = ipaddr[1]; 2140 ipaddr[1].s_addr = INADDR_ANY; 2141 } 2142 if (ipaddr[0].s_addr == INADDR_NONE) { 2143 ipaddr[0] = ipaddr[1]; 2144 ipaddr[1].s_addr = INADDR_NONE; 2145 } 2146 } 2147 break; 2148 2149 case VAR_CALLBACK: 2150 cx->cfg.callback.opmask = 0; 2151 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) { 2152 if (!strcasecmp(arg->argv[dummyint], "auth")) 2153 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH); 2154 else if (!strcasecmp(arg->argv[dummyint], "cbcp")) 2155 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP); 2156 else if (!strcasecmp(arg->argv[dummyint], "e.164")) { 2157 if (dummyint == arg->argc - 1) 2158 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n"); 2159 else { 2160 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164); 2161 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint], 2162 sizeof cx->cfg.callback.msg - 1); 2163 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0'; 2164 } 2165 } else if (!strcasecmp(arg->argv[dummyint], "none")) 2166 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE); 2167 else { 2168 res = -1; 2169 break; 2170 } 2171 } 2172 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE)) 2173 cx->cfg.callback.opmask = 0; 2174 break; 2175 2176 case VAR_CBCP: 2177 cx->cfg.cbcp.delay = 0; 2178 *cx->cfg.cbcp.phone = '\0'; 2179 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY; 2180 if (arg->argc > arg->argn) { 2181 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn], 2182 sizeof cx->cfg.cbcp.phone - 1); 2183 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0'; 2184 if (arg->argc > arg->argn + 1) { 2185 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]); 2186 if (arg->argc > arg->argn + 2) { 2187 long_val = atol(arg->argv[arg->argn + 2]); 2188 if (long_val < MIN_FSMRETRY) 2189 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n", 2190 long_val, MIN_FSMRETRY); 2191 else 2192 cx->cfg.cbcp.fsmretry = long_val; 2193 } 2194 } 2195 } 2196 break; 2197 2198 case VAR_CHOKED: 2199 arg->bundle->cfg.choked.timeout = atoi(argp); 2200 if (arg->bundle->cfg.choked.timeout <= 0) 2201 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT; 2202 break; 2203 2204 case VAR_SENDPIPE: 2205 long_val = atol(argp); 2206 arg->bundle->ncp.cfg.sendpipe = long_val; 2207 break; 2208 2209 case VAR_RECVPIPE: 2210 long_val = atol(argp); 2211 arg->bundle->ncp.cfg.recvpipe = long_val; 2212 break; 2213 2214#ifndef NORADIUS 2215 case VAR_RADIUS: 2216 if (!*argp) 2217 *arg->bundle->radius.cfg.file = '\0'; 2218 else if (access(argp, R_OK)) { 2219 log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno)); 2220 res = 1; 2221 break; 2222 } else { 2223 strncpy(arg->bundle->radius.cfg.file, argp, 2224 sizeof arg->bundle->radius.cfg.file - 1); 2225 arg->bundle->radius.cfg.file 2226 [sizeof arg->bundle->radius.cfg.file - 1] = '\0'; 2227 } 2228 break; 2229#endif 2230 2231 case VAR_CD: 2232 if (*argp) { 2233 if (strcasecmp(argp, "off")) { 2234 long_val = atol(argp); 2235 if (long_val < 0) 2236 long_val = 0; 2237 cx->physical->cfg.cd.delay = long_val; 2238 cx->physical->cfg.cd.necessity = argp[strlen(argp)-1] == '!' ? 2239 CD_REQUIRED : CD_VARIABLE; 2240 } else 2241 cx->physical->cfg.cd.necessity = CD_NOTREQUIRED; 2242 } else { 2243 cx->physical->cfg.cd.delay = 0; 2244 cx->physical->cfg.cd.necessity = CD_DEFAULT; 2245 } 2246 break; 2247 2248 case VAR_PARITY: 2249 if (arg->argc == arg->argn + 1) 2250 res = physical_SetParity(arg->cx->physical, argp); 2251 else { 2252 log_Printf(LogWARN, "Parity value must be odd, even or none\n"); 2253 res = 1; 2254 } 2255 break; 2256 2257 case VAR_CRTSCTS: 2258 if (strcasecmp(argp, "on") == 0) 2259 physical_SetRtsCts(arg->cx->physical, 1); 2260 else if (strcasecmp(argp, "off") == 0) 2261 physical_SetRtsCts(arg->cx->physical, 0); 2262 else { 2263 log_Printf(LogWARN, "RTS/CTS value must be on or off\n"); 2264 res = 1; 2265 } 2266 break; 2267 2268 case VAR_URGENT: 2269 if (arg->argn == arg->argc) { 2270 ncp_SetUrgentTOS(&arg->bundle->ncp); 2271 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2272 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2273 } else if (!strcasecmp(arg->argv[arg->argn], "udp")) { 2274 ncp_SetUrgentTOS(&arg->bundle->ncp); 2275 if (arg->argn == arg->argc - 1) 2276 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2277 else for (f = arg->argn + 1; f < arg->argc; f++) 2278 if (*arg->argv[f] == '+') 2279 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2280 else if (*arg->argv[f] == '-') 2281 ncp_RemoveUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2282 else { 2283 if (f == arg->argn) 2284 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2285 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2286 } 2287 } else if (arg->argn == arg->argc - 1 && 2288 !strcasecmp(arg->argv[arg->argn], "none")) { 2289 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2290 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp); 2291 ncp_ClearUrgentTOS(&arg->bundle->ncp); 2292 } else if (!strcasecmp(arg->argv[arg->argn], "length")) { 2293 if (arg->argn == arg->argc - 1) 2294 ncp_SetUrgentTcpLen(&arg->bundle->ncp, 0); 2295 else 2296 ncp_SetUrgentTcpLen(&arg->bundle->ncp, atoi(arg->argv[arg->argn + 1])); 2297 } else { 2298 ncp_SetUrgentTOS(&arg->bundle->ncp); 2299 first = arg->argn; 2300 if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc) 2301 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2302 2303 for (f = first; f < arg->argc; f++) 2304 if (*arg->argv[f] == '+') 2305 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2306 else if (*arg->argv[f] == '-') 2307 ncp_RemoveUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1)); 2308 else { 2309 if (f == first) 2310 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp); 2311 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f])); 2312 } 2313 } 2314 break; 2315 2316 case VAR_PPPOE: 2317 if (strcasecmp(argp, "3Com") == 0) 2318 physical_SetPPPoEnonstandard(arg->cx->physical, 1); 2319 else if (strcasecmp(argp, "standard") == 0) 2320 physical_SetPPPoEnonstandard(arg->cx->physical, 0); 2321 else { 2322 log_Printf(LogWARN, "PPPoE standard value must be \"standard\" or \"3Com\"\n"); 2323 res = 1; 2324 } 2325 break; 2326 2327#ifndef NORADIUS 2328 case VAR_PORT_ID: 2329 if (strcasecmp(argp, "default") == 0) 2330 arg->bundle->radius.port_id_type = RPI_DEFAULT; 2331 else if (strcasecmp(argp, "pid") == 0) 2332 arg->bundle->radius.port_id_type = RPI_PID; 2333 else if (strcasecmp(argp, "ifnum") == 0) 2334 arg->bundle->radius.port_id_type = RPI_IFNUM; 2335 else if (strcasecmp(argp, "tunnum") == 0) 2336 arg->bundle->radius.port_id_type = RPI_TUNNUM; 2337 else { 2338 log_Printf(LogWARN, 2339 "RADIUS port id must be one of \"default\", \"pid\", \"ifnum\" or \"tunnum\"\n"); 2340 res = 1; 2341 } 2342 2343 if (arg->bundle->radius.port_id_type && !*arg->bundle->radius.cfg.file) { 2344 log_Printf(LogWARN, "rad_port_id requires radius to be configured\n"); 2345 res = 1; 2346 } 2347 2348 break; 2349#endif 2350 } 2351 2352 return res; 2353} 2354 2355static struct cmdtab const SetCommands[] = { 2356 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2357 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP}, 2358 {"authkey", "key", SetVariable, LOCAL_AUTH, 2359 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY}, 2360 {"authname", NULL, SetVariable, LOCAL_AUTH, 2361 "authentication name", "set authname name", (const void *)VAR_AUTHNAME}, 2362 {"autoload", NULL, SetVariable, LOCAL_AUTH, 2363 "auto link [de]activation", "set autoload maxtime maxload mintime minload", 2364 (const void *)VAR_AUTOLOAD}, 2365 {"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX, 2366 "datalink bandwidth", "set bandwidth value", NULL}, 2367 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2368 "callback control", "set callback [none|auth|cbcp|" 2369 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK}, 2370 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2371 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]", 2372 (const void *)VAR_CBCP}, 2373 {"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2374 "CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY}, 2375 {"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement", 2376 "set cd value[!]", (const void *)VAR_CD}, 2377 {"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX, 2378 "CHAP retries", "set chapretry value [attempts]", 2379 (const void *)VAR_CHAPRETRY}, 2380 {"choked", NULL, SetVariable, LOCAL_AUTH, 2381 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED}, 2382 {"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX, 2383 "Use hardware flow control", "set ctsrts [on|off]", 2384 (const char *)VAR_CRTSCTS}, 2385 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2386 "deflate window sizes", "set deflate out-winsize in-winsize", 2387 (const void *) VAR_WINSIZE}, 2388#ifndef NODES 2389 {"mppe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2390 "MPPE key size and state", "set mppe [40|56|128|* [stateful|stateless|*]]", 2391 (const void *) VAR_MPPE}, 2392#endif 2393 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX, 2394 "physical device name", "set device|line device-name[,device-name]", 2395 (const void *) VAR_DEVICE}, 2396 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2397 "dialing script", "set dial chat-script", (const void *) VAR_DIAL}, 2398 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server", 2399 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS}, 2400 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH, 2401 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]", NULL}, 2402 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX, 2403 "escape characters", "set escape hex-digit ...", NULL}, 2404 {"filter", NULL, filter_Set, LOCAL_AUTH, 2405 "packet filters", "set filter alive|dial|in|out rule-no permit|deny " 2406 "[src_addr[/width]] [dst_addr[/width]] [proto " 2407 "[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]", NULL}, 2408 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2409 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP}, 2410 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address", 2411 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]", NULL}, 2412 {"ifqueue", NULL, SetVariable, LOCAL_AUTH, "interface queue", 2413 "set ifqueue packets", (const void *)VAR_IFQUEUE}, 2414 {"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries", 2415 "set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY}, 2416 {"ipv6cpretry", "ipv6cpretries", SetVariable, LOCAL_AUTH, "IPV6CP retries", 2417 "set ipv6cpretry value [attempts]", (const void *)VAR_IPV6CPRETRY}, 2418 {"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries", 2419 "set lcpretry value [attempts]", (const void *)VAR_LCPRETRY}, 2420 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level", 2421 "set log [local] [+|-]all|async|cbcp|ccp|chat|command|connect|debug|dns|hdlc|" 2422 "id0|ipcp|lcp|lqm|phase|physical|radius|sync|tcp/ip|timer|tun...", NULL}, 2423 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2424 "login script", "set login chat-script", (const void *) VAR_LOGIN}, 2425 {"logout", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2426 "logout script", "set logout chat-script", (const void *) VAR_LOGOUT}, 2427 {"lqrperiod", "echoperiod", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT, 2428 "LQR period", "set lqr/echo period value", (const void *)VAR_LQRPERIOD}, 2429 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value", 2430 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE}, 2431 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value", 2432 "set mrru value", (const void *)VAR_MRRU}, 2433 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2434 "MRU value", "set mru [max[imum]] [value]", (const void *)VAR_MRU}, 2435 {"mtu", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2436 "interface MTU value", "set mtu [max[imum]] [value]", (const void *)VAR_MTU}, 2437 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server", 2438 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS}, 2439 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode", 2440 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE}, 2441 {"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries", 2442 "set papretry value [attempts]", (const void *)VAR_PAPRETRY}, 2443 {"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity", 2444 "set parity [odd|even|none]", (const void *)VAR_PARITY}, 2445 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)", 2446 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE}, 2447 {"proctitle", "title", SetProcTitle, LOCAL_AUTH, 2448 "Process title", "set proctitle [value]", NULL}, 2449#ifndef NORADIUS 2450 {"radius", NULL, SetVariable, LOCAL_AUTH, 2451 "RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS}, 2452 {"rad_alive", NULL, SetVariable, LOCAL_AUTH, 2453 "Raduis alive interval", "set rad_alive value", 2454 (const void *)VAR_RAD_ALIVE}, 2455 {"rad_port_id", NULL, SetVariable, LOCAL_AUTH, 2456 "NAS-Port-Id", "set rad_port_id [default|pid|ifnum|tunnum]", (const void *)VAR_PORT_ID}, 2457#endif 2458 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX, 2459 "Reconnect timeout", "set reconnect value ntries", NULL}, 2460 {"recvpipe", NULL, SetVariable, LOCAL_AUTH, 2461 "RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE}, 2462 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX, 2463 "Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]", NULL}, 2464 {"sendpipe", NULL, SetVariable, LOCAL_AUTH, 2465 "SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE}, 2466 {"server", "socket", SetServer, LOCAL_AUTH, "diagnostic port", 2467 "set server|socket TcpPort|LocalName|none|open|closed [password [mask]]", 2468 NULL}, 2469 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX, 2470 "physical speed", "set speed value|sync", NULL}, 2471 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX, 2472 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]", NULL}, 2473 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout", 2474 "set timeout idletime", (const void *)VAR_IDLETIMEOUT}, 2475 {"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent traffic", 2476 "set urgent [[tcp|udp] [+|-]port...]|[length len]", (const void *)VAR_URGENT}, 2477 {"vj", NULL, ipcp_vjset, LOCAL_AUTH, 2478 "vj values", "set vj slots|slotcomp [value]", NULL}, 2479 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 2480 "Display this message", "set help|? [command]", SetCommands}, 2481 {"pppoe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, 2482 "Connect using standard/3Com mode", "set pppoe [standard|3Com]", 2483 (const char *)VAR_PPPOE}, 2484 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 2485}; 2486 2487static int 2488SetCommand(struct cmdargs const *arg) 2489{ 2490 if (arg->argc > arg->argn) 2491 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv, 2492 arg->prompt, arg->cx); 2493 else if (arg->prompt) 2494 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for" 2495 " syntax help.\n"); 2496 else 2497 log_Printf(LogWARN, "set command must have arguments\n"); 2498 2499 return 0; 2500} 2501 2502static int 2503AddCommand(struct cmdargs const *arg) 2504{ 2505 struct ncpaddr gw; 2506 struct ncprange dest; 2507 struct in_addr host; 2508#ifndef NOINET6 2509 struct in6_addr host6; 2510#endif 2511 int dest_default, gw_arg, addrs; 2512 2513 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2) 2514 return -1; 2515 2516 addrs = 0; 2517 dest_default = 0; 2518 if (arg->argc == arg->argn + 2) { 2519 if (!strcasecmp(arg->argv[arg->argn], "default")) 2520 dest_default = 1; 2521 else { 2522 if (!ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn])) 2523 return -1; 2524 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6)) 2525 addrs = ROUTE_DSTMYADDR; 2526 else if (!strncasecmp(arg->argv[arg->argn], "MYADDR6", 7)) 2527 addrs = ROUTE_DSTMYADDR6; 2528 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7)) 2529 addrs = ROUTE_DSTHISADDR; 2530 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR6", 8)) 2531 addrs = ROUTE_DSTHISADDR6; 2532 else if (!strncasecmp(arg->argv[arg->argn], "DNS0", 4)) 2533 addrs = ROUTE_DSTDNS0; 2534 else if (!strncasecmp(arg->argv[arg->argn], "DNS1", 4)) 2535 addrs = ROUTE_DSTDNS1; 2536 } 2537 gw_arg = 1; 2538 } else { 2539 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2540 addrs = ROUTE_DSTMYADDR; 2541 host = arg->bundle->ncp.ipcp.my_ip; 2542 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2543 addrs = ROUTE_DSTHISADDR; 2544 host = arg->bundle->ncp.ipcp.peer_ip; 2545 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2546 addrs = ROUTE_DSTDNS0; 2547 host = arg->bundle->ncp.ipcp.ns.dns[0]; 2548 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2549 addrs = ROUTE_DSTDNS1; 2550 host = arg->bundle->ncp.ipcp.ns.dns[1]; 2551 } else { 2552 host = GetIpAddr(arg->argv[arg->argn]); 2553 if (host.s_addr == INADDR_NONE) { 2554 log_Printf(LogWARN, "%s: Invalid destination address\n", 2555 arg->argv[arg->argn]); 2556 return -1; 2557 } 2558 } 2559 ncprange_setip4(&dest, host, GetIpAddr(arg->argv[arg->argn + 1])); 2560 gw_arg = 2; 2561 } 2562 2563 if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR") == 0) { 2564 ncpaddr_setip4(&gw, arg->bundle->ncp.ipcp.peer_ip); 2565 addrs |= ROUTE_GWHISADDR; 2566#ifndef NOINET6 2567 } else if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR6") == 0) { 2568 if (!ncpaddr_getip6(&arg->bundle->ncp.ipv6cp.hisaddr, &host6)) 2569 memset(&host6, '\0', sizeof host6); 2570 ncpaddr_setip6(&gw, &host6); 2571 addrs |= ROUTE_GWHISADDR6; 2572#endif 2573 } else { 2574 if (!ncpaddr_aton(&gw, &arg->bundle->ncp, arg->argv[arg->argn + gw_arg])) { 2575 log_Printf(LogWARN, "%s: Invalid gateway address\n", 2576 arg->argv[arg->argn + gw_arg]); 2577 return -1; 2578 } 2579 } 2580 2581 if (dest_default) 2582 ncprange_setdefault(&dest, ncpaddr_family(&gw)); 2583 2584 if (rt_Set(arg->bundle, RTM_ADD, &dest, &gw, arg->cmd->args ? 1 : 0, 2585 ((addrs & ROUTE_GWHISADDR) || (addrs & ROUTE_GWHISADDR6)) ? 1 : 0) 2586 && addrs != ROUTE_STATIC) 2587 route_Add(&arg->bundle->ncp.route, addrs, &dest, &gw); 2588 2589 return 0; 2590} 2591 2592static int 2593DeleteCommand(struct cmdargs const *arg) 2594{ 2595 struct ncprange dest; 2596 int addrs; 2597 2598 if (arg->argc == arg->argn+1) { 2599 if(strcasecmp(arg->argv[arg->argn], "all") == 0) { 2600 route_IfDelete(arg->bundle, 0); 2601 route_DeleteAll(&arg->bundle->ncp.route); 2602 } else { 2603 addrs = 0; 2604 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) { 2605 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.my_ip); 2606 addrs = ROUTE_DSTMYADDR; 2607#ifndef NOINET6 2608 } else if (strcasecmp(arg->argv[arg->argn], "MYADDR6") == 0) { 2609 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.myaddr); 2610 addrs = ROUTE_DSTMYADDR6; 2611#endif 2612 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) { 2613 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.peer_ip); 2614 addrs = ROUTE_DSTHISADDR; 2615#ifndef NOINET6 2616 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR6") == 0) { 2617 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.hisaddr); 2618 addrs = ROUTE_DSTHISADDR6; 2619#endif 2620 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) { 2621 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[0]); 2622 addrs = ROUTE_DSTDNS0; 2623 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) { 2624 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[1]); 2625 addrs = ROUTE_DSTDNS1; 2626 } else { 2627 ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn]); 2628 addrs = ROUTE_STATIC; 2629 } 2630 rt_Set(arg->bundle, RTM_DELETE, &dest, NULL, arg->cmd->args ? 1 : 0, 0); 2631 route_Delete(&arg->bundle->ncp.route, addrs, &dest); 2632 } 2633 } else 2634 return -1; 2635 2636 return 0; 2637} 2638 2639#ifndef NONAT 2640static int 2641NatEnable(struct cmdargs const *arg) 2642{ 2643 if (arg->argc == arg->argn+1) { 2644 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2645 if (!arg->bundle->NatEnabled) { 2646 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) 2647 LibAliasSetAddress(la, arg->bundle->ncp.ipcp.my_ip); 2648 arg->bundle->NatEnabled = 1; 2649 } 2650 return 0; 2651 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) { 2652 arg->bundle->NatEnabled = 0; 2653 opt_disable(arg->bundle, OPT_IFACEALIAS); 2654 /* Don't iface_Clear() - there may be manually configured addresses */ 2655 return 0; 2656 } 2657 } 2658 2659 return -1; 2660} 2661 2662 2663static int 2664NatOption(struct cmdargs const *arg) 2665{ 2666 long param = (long)arg->cmd->args; 2667 2668 if (arg->argc == arg->argn+1) { 2669 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) { 2670 if (arg->bundle->NatEnabled) { 2671 LibAliasSetMode(la, param, param); 2672 return 0; 2673 } 2674 log_Printf(LogWARN, "nat not enabled\n"); 2675 } else if (strcmp(arg->argv[arg->argn], "no") == 0) { 2676 if (arg->bundle->NatEnabled) { 2677 LibAliasSetMode(la, 0, param); 2678 return 0; 2679 } 2680 log_Printf(LogWARN, "nat not enabled\n"); 2681 } 2682 } 2683 return -1; 2684} 2685#endif /* #ifndef NONAT */ 2686 2687static int 2688LinkCommand(struct cmdargs const *arg) 2689{ 2690 if (arg->argc > arg->argn+1) { 2691 char namelist[LINE_LEN]; 2692 struct datalink *cx; 2693 char *name; 2694 int result = 0; 2695 2696 if (!strcmp(arg->argv[arg->argn], "*")) { 2697 struct datalink *dl; 2698 2699 cx = arg->bundle->links; 2700 while (cx) { 2701 /* Watch it, the command could be a ``remove'' */ 2702 dl = cx->next; 2703 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2704 arg->prompt, cx); 2705 for (cx = arg->bundle->links; cx; cx = cx->next) 2706 if (cx == dl) 2707 break; /* Pointer's still valid ! */ 2708 } 2709 } else { 2710 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2711 namelist[sizeof namelist - 1] = '\0'; 2712 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) 2713 if (!bundle2datalink(arg->bundle, name)) { 2714 log_Printf(LogWARN, "link: %s: Invalid link name\n", name); 2715 return 1; 2716 } 2717 2718 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1); 2719 namelist[sizeof namelist - 1] = '\0'; 2720 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) { 2721 cx = bundle2datalink(arg->bundle, name); 2722 if (cx) 2723 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv, 2724 arg->prompt, cx); 2725 else { 2726 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name); 2727 result++; 2728 } 2729 } 2730 } 2731 return result; 2732 } 2733 2734 log_Printf(LogWARN, "usage: %s\n", arg->cmd->syntax); 2735 return 2; 2736} 2737 2738struct link * 2739command_ChooseLink(struct cmdargs const *arg) 2740{ 2741 if (arg->cx) 2742 return &arg->cx->physical->link; 2743 else if (!arg->bundle->ncp.mp.cfg.mrru) { 2744 struct datalink *dl = bundle2datalink(arg->bundle, NULL); 2745 if (dl) 2746 return &dl->physical->link; 2747 } 2748 return &arg->bundle->ncp.mp.link; 2749} 2750 2751static const char * 2752ident_cmd(const char *cmd, unsigned *keep, unsigned *add) 2753{ 2754 const char *result; 2755 2756 switch (*cmd) { 2757 case 'A': 2758 case 'a': 2759 result = "accept"; 2760 *keep = NEG_MYMASK; 2761 *add = NEG_ACCEPTED; 2762 break; 2763 case 'D': 2764 case 'd': 2765 switch (cmd[1]) { 2766 case 'E': 2767 case 'e': 2768 result = "deny"; 2769 *keep = NEG_MYMASK; 2770 *add = 0; 2771 break; 2772 case 'I': 2773 case 'i': 2774 result = "disable"; 2775 *keep = NEG_HISMASK; 2776 *add = 0; 2777 break; 2778 default: 2779 return NULL; 2780 } 2781 break; 2782 case 'E': 2783 case 'e': 2784 result = "enable"; 2785 *keep = NEG_HISMASK; 2786 *add = NEG_ENABLED; 2787 break; 2788 default: 2789 return NULL; 2790 } 2791 2792 return result; 2793} 2794 2795static int 2796OptSet(struct cmdargs const *arg) 2797{ 2798 int opt = (int)(long)arg->cmd->args; 2799 unsigned keep; /* Keep this opt */ 2800 unsigned add; /* Add this opt */ 2801 2802 if (ident_cmd(arg->argv[arg->argn - 2], &keep, &add) == NULL) 2803 return 1; 2804 2805#ifndef NOINET6 2806 if (add == NEG_ENABLED && opt == OPT_IPV6CP && !probe.ipv6_available) { 2807 log_Printf(LogWARN, "IPv6 is not available on this machine\n"); 2808 return 1; 2809 } 2810#endif 2811 if (!add && ((opt == OPT_NAS_IP_ADDRESS && 2812 !Enabled(arg->bundle, OPT_NAS_IDENTIFIER)) || 2813 (opt == OPT_NAS_IDENTIFIER && 2814 !Enabled(arg->bundle, OPT_NAS_IP_ADDRESS)))) { 2815 log_Printf(LogWARN, 2816 "Cannot disable both NAS-IP-Address and NAS-Identifier\n"); 2817 return 1; 2818 } 2819 2820 if (add) 2821 opt_enable(arg->bundle, opt); 2822 else 2823 opt_disable(arg->bundle, opt); 2824 2825 return 0; 2826} 2827 2828static int 2829IfaceAliasOptSet(struct cmdargs const *arg) 2830{ 2831 unsigned long long save = arg->bundle->cfg.optmask; 2832 int result = OptSet(arg); 2833 2834 if (result == 0) 2835 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) { 2836 arg->bundle->cfg.optmask = save; 2837 log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n"); 2838 result = 2; 2839 } 2840 2841 return result; 2842} 2843 2844static int 2845NegotiateSet(struct cmdargs const *arg) 2846{ 2847 long param = (long)arg->cmd->args; 2848 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */ 2849 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */ 2850 const char *cmd; 2851 unsigned keep; /* Keep these bits */ 2852 unsigned add; /* Add these bits */ 2853 2854 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL) 2855 return 1; 2856 2857 if ((arg->cmd->lauth & LOCAL_CX) && !cx) { 2858 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n", 2859 cmd, arg->cmd->name); 2860 return 2; 2861 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) { 2862 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n", 2863 cmd, arg->cmd->name, cx->name); 2864 cx = NULL; 2865 } 2866 2867 switch (param) { 2868 case NEG_ACFCOMP: 2869 cx->physical->link.lcp.cfg.acfcomp &= keep; 2870 cx->physical->link.lcp.cfg.acfcomp |= add; 2871 break; 2872 case NEG_CHAP05: 2873 cx->physical->link.lcp.cfg.chap05 &= keep; 2874 cx->physical->link.lcp.cfg.chap05 |= add; 2875 break; 2876#ifndef NODES 2877 case NEG_CHAP80: 2878 cx->physical->link.lcp.cfg.chap80nt &= keep; 2879 cx->physical->link.lcp.cfg.chap80nt |= add; 2880 break; 2881 case NEG_CHAP80LM: 2882 cx->physical->link.lcp.cfg.chap80lm &= keep; 2883 cx->physical->link.lcp.cfg.chap80lm |= add; 2884 break; 2885 case NEG_CHAP81: 2886 cx->physical->link.lcp.cfg.chap81 &= keep; 2887 cx->physical->link.lcp.cfg.chap81 |= add; 2888 break; 2889 case NEG_MPPE: 2890 l->ccp.cfg.neg[CCP_NEG_MPPE] &= keep; 2891 l->ccp.cfg.neg[CCP_NEG_MPPE] |= add; 2892 break; 2893#endif 2894 case NEG_DEFLATE: 2895 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep; 2896 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add; 2897 break; 2898 case NEG_DNS: 2899 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep; 2900 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add; 2901 break; 2902 case NEG_ECHO: /* probably misplaced in this function ! */ 2903 if (cx->physical->link.lcp.cfg.echo && !add) { 2904 cx->physical->link.lcp.cfg.echo = 0; 2905 cx->physical->hdlc.lqm.method &= ~LQM_ECHO; 2906 if (cx->physical->hdlc.lqm.method & LQM_ECHO && 2907 !cx->physical->link.lcp.want_lqrperiod && 2908 cx->physical->hdlc.lqm.timer.load) { 2909 cx->physical->hdlc.lqm.timer.load = 0; 2910 lqr_StopTimer(cx->physical); 2911 } 2912 } else if (!cx->physical->link.lcp.cfg.echo && add) { 2913 cx->physical->link.lcp.cfg.echo = 1; 2914 cx->physical->hdlc.lqm.method |= LQM_ECHO; 2915 cx->physical->hdlc.lqm.timer.load = 2916 cx->physical->link.lcp.cfg.lqrperiod * SECTICKS; 2917 if (cx->physical->link.lcp.fsm.state == ST_OPENED) 2918 (*cx->physical->hdlc.lqm.timer.func)(&cx->physical->link.lcp); 2919 } 2920 break; 2921 case NEG_ENDDISC: 2922 arg->bundle->ncp.mp.cfg.negenddisc &= keep; 2923 arg->bundle->ncp.mp.cfg.negenddisc |= add; 2924 break; 2925 case NEG_LQR: 2926 cx->physical->link.lcp.cfg.lqr &= keep; 2927 cx->physical->link.lcp.cfg.lqr |= add; 2928 break; 2929 case NEG_PAP: 2930 cx->physical->link.lcp.cfg.pap &= keep; 2931 cx->physical->link.lcp.cfg.pap |= add; 2932 break; 2933 case NEG_PPPDDEFLATE: 2934 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep; 2935 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add; 2936 break; 2937 case NEG_PRED1: 2938 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep; 2939 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add; 2940 break; 2941 case NEG_PROTOCOMP: 2942 cx->physical->link.lcp.cfg.protocomp &= keep; 2943 cx->physical->link.lcp.cfg.protocomp |= add; 2944 break; 2945 case NEG_SHORTSEQ: 2946 switch (bundle_Phase(arg->bundle)) { 2947 case PHASE_DEAD: 2948 break; 2949 case PHASE_ESTABLISH: 2950 /* Make sure none of our links are DATALINK_LCP or greater */ 2951 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) { 2952 log_Printf(LogWARN, "shortseq: Only changeable before" 2953 " LCP negotiations\n"); 2954 return 1; 2955 } 2956 break; 2957 default: 2958 log_Printf(LogWARN, "shortseq: Only changeable at phase" 2959 " DEAD/ESTABLISH\n"); 2960 return 1; 2961 } 2962 arg->bundle->ncp.mp.cfg.shortseq &= keep; 2963 arg->bundle->ncp.mp.cfg.shortseq |= add; 2964 break; 2965 case NEG_VJCOMP: 2966 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep; 2967 arg->bundle->ncp.ipcp.cfg.vj.neg |= add; 2968 break; 2969 } 2970 2971 return 0; 2972} 2973 2974static struct cmdtab const NegotiateCommands[] = { 2975 {"echo", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, "Send echo requests", 2976 "disable|enable", (const void *)NEG_ECHO}, 2977 {"filter-decapsulation", NULL, OptSet, LOCAL_AUTH, 2978 "filter on PPPoUDP payloads", "disable|enable", 2979 (const void *)OPT_FILTERDECAP}, 2980 {"force-scripts", NULL, OptSet, LOCAL_AUTH, 2981 "Force execution of the configured chat scripts", "disable|enable", 2982 (const void *)OPT_FORCE_SCRIPTS}, 2983 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids", 2984 "disable|enable", (const void *)OPT_IDCHECK}, 2985 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH, 2986 "retain interface addresses", "disable|enable", 2987 (const void *)OPT_IFACEALIAS}, 2988#ifndef NOINET6 2989 {"ipcp", NULL, OptSet, LOCAL_AUTH, "IP Network Control Protocol", 2990 "disable|enable", (const void *)OPT_IPCP}, 2991 {"ipv6cp", NULL, OptSet, LOCAL_AUTH, "IPv6 Network Control Protocol", 2992 "disable|enable", (const void *)OPT_IPV6CP}, 2993#endif 2994 {"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader", 2995 "disable|enable", (const void *)OPT_KEEPSESSION}, 2996 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface", 2997 "disable|enable", (const void *)OPT_LOOPBACK}, 2998 {"nas-ip-address", NULL, OptSet, LOCAL_AUTH, "Send NAS-IP-Address to RADIUS", 2999 "disable|enable", (const void *)OPT_NAS_IP_ADDRESS}, 3000 {"nas-identifier", NULL, OptSet, LOCAL_AUTH, "Send NAS-Identifier to RADIUS", 3001 "disable|enable", (const void *)OPT_NAS_IDENTIFIER}, 3002 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file", 3003 "disable|enable", (const void *)OPT_PASSWDAUTH}, 3004 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry", 3005 "disable|enable", (const void *)OPT_PROXY}, 3006 {"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts", 3007 "disable|enable", (const void *)OPT_PROXYALL}, 3008 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes", 3009 "disable|enable", (const void *)OPT_SROUTES}, 3010 {"tcpmssfixup", "mssfixup", OptSet, LOCAL_AUTH, "Modify MSS options", 3011 "disable|enable", (const void *)OPT_TCPMSSFIXUP}, 3012 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput", 3013 "disable|enable", (const void *)OPT_THROUGHPUT}, 3014 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp", 3015 "disable|enable", (const void *)OPT_UTMP}, 3016 3017#ifndef NOINET6 3018#define NEG_OPT_MAX 17 /* accept/deny allowed below and not above */ 3019#else 3020#define NEG_OPT_MAX 15 3021#endif 3022 3023 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3024 "Address & Control field compression", "accept|deny|disable|enable", 3025 (const void *)NEG_ACFCOMP}, 3026 {"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3027 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable", 3028 (const void *)NEG_CHAP05}, 3029#ifndef NODES 3030 {"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3031 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 3032 (const void *)NEG_CHAP80}, 3033 {"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3034 "Microsoft (NT) CHAP", "accept|deny|disable|enable", 3035 (const void *)NEG_CHAP80LM}, 3036 {"mschapv2", "chap81", NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3037 "Microsoft CHAP v2", "accept|deny|disable|enable", 3038 (const void *)NEG_CHAP81}, 3039 {"mppe", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 3040 "MPPE encryption", "accept|deny|disable|enable", 3041 (const void *)NEG_MPPE}, 3042#endif 3043 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 3044 "Deflate compression", "accept|deny|disable|enable", 3045 (const void *)NEG_DEFLATE}, 3046 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 3047 "Deflate (type 24) compression", "accept|deny|disable|enable", 3048 (const void *)NEG_PPPDDEFLATE}, 3049 {"dns", NULL, NegotiateSet, LOCAL_AUTH, 3050 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS}, 3051 {"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation", 3052 "accept|deny|disable|enable", (const void *)NEG_ENDDISC}, 3053 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3054 "Link Quality Reports", "accept|deny|disable|enable", 3055 (const void *)NEG_LQR}, 3056 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3057 "Password Authentication protocol", "accept|deny|disable|enable", 3058 (const void *)NEG_PAP}, 3059 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT, 3060 "Predictor 1 compression", "accept|deny|disable|enable", 3061 (const void *)NEG_PRED1}, 3062 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, 3063 "Protocol field compression", "accept|deny|disable|enable", 3064 (const void *)NEG_PROTOCOMP}, 3065 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH, 3066 "MP Short Sequence Numbers", "accept|deny|disable|enable", 3067 (const void *)NEG_SHORTSEQ}, 3068 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH, 3069 "Van Jacobson header compression", "accept|deny|disable|enable", 3070 (const void *)NEG_VJCOMP}, 3071 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH, 3072 "Display this message", "accept|deny|disable|enable help|? [value]", 3073 NegotiateCommands}, 3074 {NULL, NULL, NULL, 0, NULL, NULL, NULL}, 3075}; 3076 3077static int 3078NegotiateCommand(struct cmdargs const *arg) 3079{ 3080 if (arg->argc > arg->argn) { 3081 char const *argv[3]; 3082 unsigned keep, add; 3083 int n; 3084 3085 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL) 3086 return -1; 3087 argv[2] = NULL; 3088 3089 for (n = arg->argn; n < arg->argc; n++) { 3090 argv[1] = arg->argv[n]; 3091 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ? 3092 0 : NEG_OPT_MAX), 2, 1, argv, arg->prompt, arg->cx); 3093 } 3094 } else if (arg->prompt) 3095 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n", 3096 arg->argv[arg->argn-1]); 3097 else 3098 log_Printf(LogWARN, "%s command must have arguments\n", 3099 arg->argv[arg->argn] ); 3100 3101 return 0; 3102} 3103 3104const char * 3105command_ShowNegval(unsigned val) 3106{ 3107 switch (val&3) { 3108 case 1: return "disabled & accepted"; 3109 case 2: return "enabled & denied"; 3110 case 3: return "enabled & accepted"; 3111 } 3112 return "disabled & denied"; 3113} 3114 3115static int 3116ClearCommand(struct cmdargs const *arg) 3117{ 3118 struct pppThroughput *t; 3119 struct datalink *cx; 3120 int i, clear_type; 3121 3122 if (arg->argc < arg->argn + 1) 3123 return -1; 3124 3125 if (strcasecmp(arg->argv[arg->argn], "physical") == 0) { 3126 cx = arg->cx; 3127 if (!cx) 3128 cx = bundle2datalink(arg->bundle, NULL); 3129 if (!cx) { 3130 log_Printf(LogWARN, "A link must be specified for ``clear physical''\n"); 3131 return 1; 3132 } 3133 t = &cx->physical->link.stats.total; 3134 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0) 3135 t = &arg->bundle->ncp.ipcp.throughput; 3136#ifndef NOINET6 3137 else if (strcasecmp(arg->argv[arg->argn], "ipv6cp") == 0) 3138 t = &arg->bundle->ncp.ipv6cp.throughput; 3139#endif 3140 else 3141 return -1; 3142 3143 if (arg->argc > arg->argn + 1) { 3144 clear_type = 0; 3145 for (i = arg->argn + 1; i < arg->argc; i++) 3146 if (strcasecmp(arg->argv[i], "overall") == 0) 3147 clear_type |= THROUGHPUT_OVERALL; 3148 else if (strcasecmp(arg->argv[i], "current") == 0) 3149 clear_type |= THROUGHPUT_CURRENT; 3150 else if (strcasecmp(arg->argv[i], "peak") == 0) 3151 clear_type |= THROUGHPUT_PEAK; 3152 else 3153 return -1; 3154 } else 3155 clear_type = THROUGHPUT_ALL; 3156 3157 throughput_clear(t, clear_type, arg->prompt); 3158 return 0; 3159} 3160 3161static int 3162RunListCommand(struct cmdargs const *arg) 3163{ 3164 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???"; 3165 3166#ifndef NONAT 3167 if (arg->cmd->args == NatCommands && 3168 tolower(*arg->argv[arg->argn - 1]) == 'a') { 3169 if (arg->prompt) 3170 prompt_Printf(arg->prompt, "The alias command is deprecated\n"); 3171 else 3172 log_Printf(LogWARN, "The alias command is deprecated\n"); 3173 } 3174#endif 3175 3176 if (arg->argc > arg->argn) 3177 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv, 3178 arg->prompt, arg->cx); 3179 else if (arg->prompt) 3180 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help" 3181 " <option>' for syntax help.\n", cmd, cmd); 3182 else 3183 log_Printf(LogWARN, "%s command must have arguments\n", cmd); 3184 3185 return 0; 3186} 3187 3188static int 3189IfaceNameCommand(struct cmdargs const *arg) 3190{ 3191 int n = arg->argn; 3192 3193 if (arg->argc != n + 1) 3194 return -1; 3195 3196 if (!iface_Name(arg->bundle->iface, arg->argv[n])) 3197 return 1; 3198 3199 log_SetTun(arg->bundle->unit, arg->bundle->iface->name); 3200 return 0; 3201} 3202 3203static int 3204IfaceAddCommand(struct cmdargs const *arg) 3205{ 3206 struct ncpaddr peer, addr; 3207 struct ncprange ifa; 3208 struct in_addr mask; 3209 int n, how; 3210 3211 if (arg->argc == arg->argn + 1) { 3212 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3213 return -1; 3214 ncpaddr_init(&peer); 3215 } else { 3216 if (arg->argc == arg->argn + 2) { 3217 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn])) 3218 return -1; 3219 n = 1; 3220 } else if (arg->argc == arg->argn + 3) { 3221 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn])) 3222 return -1; 3223 if (ncpaddr_family(&addr) != AF_INET) 3224 return -1; 3225 ncprange_sethost(&ifa, &addr); 3226 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn + 1])) 3227 return -1; 3228 if (!ncpaddr_getip4(&addr, &mask)) 3229 return -1; 3230 if (!ncprange_setip4mask(&ifa, mask)) 3231 return -1; 3232 n = 2; 3233 } else 3234 return -1; 3235 3236 if (!ncpaddr_aton(&peer, NULL, arg->argv[arg->argn + n])) 3237 return -1; 3238 3239 if (ncprange_family(&ifa) != ncpaddr_family(&peer)) { 3240 log_Printf(LogWARN, "IfaceAddCommand: src and dst address families" 3241 " differ\n"); 3242 return -1; 3243 } 3244 } 3245 3246 how = IFACE_ADD_LAST; 3247 if (arg->cmd->args) 3248 how |= IFACE_FORCE_ADD; 3249 3250 return !iface_Add(arg->bundle->iface, &arg->bundle->ncp, &ifa, &peer, how); 3251} 3252 3253static int 3254IfaceDeleteCommand(struct cmdargs const *arg) 3255{ 3256 struct ncpaddr ifa; 3257 struct in_addr ifa4; 3258 int ok; 3259 3260 if (arg->argc != arg->argn + 1) 3261 return -1; 3262 3263 if (!ncpaddr_aton(&ifa, NULL, arg->argv[arg->argn])) 3264 return -1; 3265 3266 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED && 3267 ncpaddr_getip4(&ifa, &ifa4) && 3268 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa4.s_addr) { 3269 log_Printf(LogWARN, "%s: Cannot remove active interface address\n", 3270 ncpaddr_ntoa(&ifa)); 3271 return 1; 3272 } 3273 3274 ok = iface_Delete(arg->bundle->iface, &arg->bundle->ncp, &ifa); 3275 if (!ok) { 3276 if (arg->cmd->args) 3277 ok = 1; 3278 else if (arg->prompt) 3279 prompt_Printf(arg->prompt, "%s: No such interface address\n", 3280 ncpaddr_ntoa(&ifa)); 3281 else 3282 log_Printf(LogWARN, "%s: No such interface address\n", 3283 ncpaddr_ntoa(&ifa)); 3284 } 3285 3286 return !ok; 3287} 3288 3289static int 3290IfaceClearCommand(struct cmdargs const *arg) 3291{ 3292 int family, how; 3293 3294 family = 0; 3295 if (arg->argc == arg->argn + 1) { 3296 if (strcasecmp(arg->argv[arg->argn], "inet") == 0) 3297 family = AF_INET; 3298#ifndef NOINET6 3299 else if (strcasecmp(arg->argv[arg->argn], "inet6") == 0) 3300 family = AF_INET6; 3301#endif 3302 else 3303 return -1; 3304 } else if (arg->argc != arg->argn) 3305 return -1; 3306 3307 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED || 3308 arg->bundle->phys_type.all & PHYS_AUTO ? 3309 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL; 3310 iface_Clear(arg->bundle->iface, &arg->bundle->ncp, family, how); 3311 3312 return 0; 3313} 3314 3315static int 3316SetProcTitle(struct cmdargs const *arg) 3317{ 3318 static char title[LINE_LEN]; 3319 char *argv[MAXARGS]; 3320 int argc = arg->argc - arg->argn; 3321 3322 if (arg->argc <= arg->argn) { 3323 SetTitle(NULL); 3324 return 0; 3325 } 3326 3327 if ((unsigned)argc >= sizeof argv / sizeof argv[0]) { 3328 argc = sizeof argv / sizeof argv[0] - 1; 3329 log_Printf(LogWARN, "Truncating proc title to %d args\n", argc); 3330 } 3331 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid()); 3332 Concatinate(title, sizeof title, argc, (const char *const *)argv); 3333 SetTitle(title); 3334 command_Free(argc, argv); 3335 3336 return 0; 3337} 3338