1 /* 2 * Copyright (C)2006 USAGI/WIDE Project 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses>. 16 */ 17 /* 18 * based on ipneigh.c 19 */ 20 /* 21 * Authors: 22 * Masahide NAKAMURA @USAGI 23 */ 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <sys/time.h> 29 #include <sys/socket.h> 30 #include <time.h> 31 32 #include "utils.h" 33 #include "ip_common.h" 34 35 static struct 36 { 37 int family; 38 int index; 39 #define NONE_DEV (-1) 40 const char *name; 41 } filter; 42 43 static void usage(void) __attribute__((noreturn)); 44 45 static void usage(void) 46 { 47 fprintf(stderr, 48 "Usage: ip ntable change name NAME [ dev DEV ]\n" 49 " [ thresh1 VAL ] [ thresh2 VAL ] [ thresh3 VAL ] [ gc_int MSEC ]\n" 50 " [ PARMS ]\n" 51 "Usage: ip ntable show [ dev DEV ] [ name NAME ]\n" 52 53 "PARMS := [ base_reachable MSEC ] [ retrans MSEC ] [ gc_stale MSEC ]\n" 54 " [ delay_probe MSEC ] [ queue LEN ]\n" 55 " [ app_probes VAL ] [ ucast_probes VAL ] [ mcast_probes VAL ]\n" 56 " [ anycast_delay MSEC ] [ proxy_delay MSEC ] [ proxy_queue LEN ]\n" 57 " [ locktime MSEC ]\n" 58 ); 59 60 exit(-1); 61 } 62 63 static int ipntable_modify(int cmd, int flags, int argc, char **argv) 64 { 65 struct { 66 struct nlmsghdr n; 67 struct ndtmsg ndtm; 68 char buf[1024]; 69 } req = { 70 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndtmsg)), 71 .n.nlmsg_flags = NLM_F_REQUEST | flags, 72 .n.nlmsg_type = cmd, 73 .ndtm.ndtm_family = preferred_family, 74 }; 75 char *namep = NULL; 76 char *threshsp = NULL; 77 char *gc_intp = NULL; 78 char parms_buf[1024] = {}; 79 struct rtattr *parms_rta = (struct rtattr *)parms_buf; 80 int parms_change = 0; 81 82 parms_rta->rta_type = NDTA_PARMS; 83 parms_rta->rta_len = RTA_LENGTH(0); 84 85 while (argc > 0) { 86 if (strcmp(*argv, "name") == 0) { 87 int len; 88 89 NEXT_ARG(); 90 if (namep) 91 duparg("NAME", *argv); 92 93 namep = *argv; 94 len = strlen(namep) + 1; 95 addattr_l(&req.n, sizeof(req), NDTA_NAME, namep, len); 96 } else if (strcmp(*argv, "thresh1") == 0) { 97 __u32 thresh1; 98 99 NEXT_ARG(); 100 threshsp = *argv; 101 102 if (get_u32(&thresh1, *argv, 0)) 103 invarg("\"thresh1\" value is invalid", *argv); 104 105 addattr32(&req.n, sizeof(req), NDTA_THRESH1, thresh1); 106 } else if (strcmp(*argv, "thresh2") == 0) { 107 __u32 thresh2; 108 109 NEXT_ARG(); 110 threshsp = *argv; 111 112 if (get_u32(&thresh2, *argv, 0)) 113 invarg("\"thresh2\" value is invalid", *argv); 114 115 addattr32(&req.n, sizeof(req), NDTA_THRESH2, thresh2); 116 } else if (strcmp(*argv, "thresh3") == 0) { 117 __u32 thresh3; 118 119 NEXT_ARG(); 120 threshsp = *argv; 121 122 if (get_u32(&thresh3, *argv, 0)) 123 invarg("\"thresh3\" value is invalid", *argv); 124 125 addattr32(&req.n, sizeof(req), NDTA_THRESH3, thresh3); 126 } else if (strcmp(*argv, "gc_int") == 0) { 127 __u64 gc_int; 128 129 NEXT_ARG(); 130 gc_intp = *argv; 131 132 if (get_u64(&gc_int, *argv, 0)) 133 invarg("\"gc_int\" value is invalid", *argv); 134 135 addattr_l(&req.n, sizeof(req), NDTA_GC_INTERVAL, 136 &gc_int, sizeof(gc_int)); 137 } else if (strcmp(*argv, "dev") == 0) { 138 __u32 ifindex; 139 140 NEXT_ARG(); 141 ifindex = ll_name_to_index(*argv); 142 if (ifindex == 0) { 143 fprintf(stderr, "Cannot find device \"%s\"\n", *argv); 144 return -1; 145 } 146 147 rta_addattr32(parms_rta, sizeof(parms_buf), 148 NDTPA_IFINDEX, ifindex); 149 } else if (strcmp(*argv, "base_reachable") == 0) { 150 __u64 breachable; 151 152 NEXT_ARG(); 153 154 if (get_u64(&breachable, *argv, 0)) 155 invarg("\"base_reachable\" value is invalid", *argv); 156 157 rta_addattr_l(parms_rta, sizeof(parms_buf), 158 NDTPA_BASE_REACHABLE_TIME, 159 &breachable, sizeof(breachable)); 160 parms_change = 1; 161 } else if (strcmp(*argv, "retrans") == 0) { 162 __u64 retrans; 163 164 NEXT_ARG(); 165 166 if (get_u64(&retrans, *argv, 0)) 167 invarg("\"retrans\" value is invalid", *argv); 168 169 rta_addattr_l(parms_rta, sizeof(parms_buf), 170 NDTPA_RETRANS_TIME, 171 &retrans, sizeof(retrans)); 172 parms_change = 1; 173 } else if (strcmp(*argv, "gc_stale") == 0) { 174 __u64 gc_stale; 175 176 NEXT_ARG(); 177 178 if (get_u64(&gc_stale, *argv, 0)) 179 invarg("\"gc_stale\" value is invalid", *argv); 180 181 rta_addattr_l(parms_rta, sizeof(parms_buf), 182 NDTPA_GC_STALETIME, 183 &gc_stale, sizeof(gc_stale)); 184 parms_change = 1; 185 } else if (strcmp(*argv, "delay_probe") == 0) { 186 __u64 delay_probe; 187 188 NEXT_ARG(); 189 190 if (get_u64(&delay_probe, *argv, 0)) 191 invarg("\"delay_probe\" value is invalid", *argv); 192 193 rta_addattr_l(parms_rta, sizeof(parms_buf), 194 NDTPA_DELAY_PROBE_TIME, 195 &delay_probe, sizeof(delay_probe)); 196 parms_change = 1; 197 } else if (strcmp(*argv, "queue") == 0) { 198 __u32 queue; 199 200 NEXT_ARG(); 201 202 if (get_u32(&queue, *argv, 0)) 203 invarg("\"queue\" value is invalid", *argv); 204 205 rta_addattr32(parms_rta, sizeof(parms_buf), 206 NDTPA_QUEUE_LEN, queue); 207 parms_change = 1; 208 } else if (strcmp(*argv, "app_probes") == 0) { 209 __u32 aprobe; 210 211 NEXT_ARG(); 212 213 if (get_u32(&aprobe, *argv, 0)) 214 invarg("\"app_probes\" value is invalid", *argv); 215 216 rta_addattr32(parms_rta, sizeof(parms_buf), 217 NDTPA_APP_PROBES, aprobe); 218 parms_change = 1; 219 } else if (strcmp(*argv, "ucast_probes") == 0) { 220 __u32 uprobe; 221 222 NEXT_ARG(); 223 224 if (get_u32(&uprobe, *argv, 0)) 225 invarg("\"ucast_probes\" value is invalid", *argv); 226 227 rta_addattr32(parms_rta, sizeof(parms_buf), 228 NDTPA_UCAST_PROBES, uprobe); 229 parms_change = 1; 230 } else if (strcmp(*argv, "mcast_probes") == 0) { 231 __u32 mprobe; 232 233 NEXT_ARG(); 234 235 if (get_u32(&mprobe, *argv, 0)) 236 invarg("\"mcast_probes\" value is invalid", *argv); 237 238 rta_addattr32(parms_rta, sizeof(parms_buf), 239 NDTPA_MCAST_PROBES, mprobe); 240 parms_change = 1; 241 } else if (strcmp(*argv, "anycast_delay") == 0) { 242 __u64 anycast_delay; 243 244 NEXT_ARG(); 245 246 if (get_u64(&anycast_delay, *argv, 0)) 247 invarg("\"anycast_delay\" value is invalid", *argv); 248 249 rta_addattr_l(parms_rta, sizeof(parms_buf), 250 NDTPA_ANYCAST_DELAY, 251 &anycast_delay, sizeof(anycast_delay)); 252 parms_change = 1; 253 } else if (strcmp(*argv, "proxy_delay") == 0) { 254 __u64 proxy_delay; 255 256 NEXT_ARG(); 257 258 if (get_u64(&proxy_delay, *argv, 0)) 259 invarg("\"proxy_delay\" value is invalid", *argv); 260 261 rta_addattr_l(parms_rta, sizeof(parms_buf), 262 NDTPA_PROXY_DELAY, 263 &proxy_delay, sizeof(proxy_delay)); 264 parms_change = 1; 265 } else if (strcmp(*argv, "proxy_queue") == 0) { 266 __u32 pqueue; 267 268 NEXT_ARG(); 269 270 if (get_u32(&pqueue, *argv, 0)) 271 invarg("\"proxy_queue\" value is invalid", *argv); 272 273 rta_addattr32(parms_rta, sizeof(parms_buf), 274 NDTPA_PROXY_QLEN, pqueue); 275 parms_change = 1; 276 } else if (strcmp(*argv, "locktime") == 0) { 277 __u64 locktime; 278 279 NEXT_ARG(); 280 281 if (get_u64(&locktime, *argv, 0)) 282 invarg("\"locktime\" value is invalid", *argv); 283 284 rta_addattr_l(parms_rta, sizeof(parms_buf), 285 NDTPA_LOCKTIME, 286 &locktime, sizeof(locktime)); 287 parms_change = 1; 288 } else { 289 invarg("unknown", *argv); 290 } 291 292 argc--; argv++; 293 } 294 295 if (!namep) 296 missarg("NAME"); 297 if (!threshsp && !gc_intp && !parms_change) { 298 fprintf(stderr, "Not enough information: changeable attributes required.\n"); 299 exit(-1); 300 } 301 302 if (parms_rta->rta_len > RTA_LENGTH(0)) { 303 addattr_l(&req.n, sizeof(req), NDTA_PARMS, RTA_DATA(parms_rta), 304 RTA_PAYLOAD(parms_rta)); 305 } 306 307 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0) 308 exit(2); 309 310 return 0; 311 } 312 313 static const char *ntable_strtime_delta(__u32 msec) 314 { 315 static char str[32]; 316 struct timeval now = {}; 317 time_t t; 318 struct tm *tp; 319 320 if (msec == 0) 321 goto error; 322 323 if (gettimeofday(&now, NULL) < 0) { 324 perror("gettimeofday"); 325 goto error; 326 } 327 328 t = now.tv_sec - (msec / 1000); 329 tp = localtime(&t); 330 if (!tp) 331 goto error; 332 333 strftime(str, sizeof(str), "%Y-%m-%d %T", tp); 334 335 return str; 336 error: 337 strcpy(str, "(error)"); 338 return str; 339 } 340 341 static int print_ntable(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) 342 { 343 FILE *fp = (FILE *)arg; 344 struct ndtmsg *ndtm = NLMSG_DATA(n); 345 int len = n->nlmsg_len; 346 struct rtattr *tb[NDTA_MAX+1]; 347 struct rtattr *tpb[NDTPA_MAX+1]; 348 int ret; 349 350 if (n->nlmsg_type != RTM_NEWNEIGHTBL) { 351 fprintf(stderr, "Not NEIGHTBL: %08x %08x %08x\n", 352 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); 353 return 0; 354 } 355 len -= NLMSG_LENGTH(sizeof(*ndtm)); 356 if (len < 0) { 357 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); 358 return -1; 359 } 360 361 if (preferred_family && preferred_family != ndtm->ndtm_family) 362 return 0; 363 364 parse_rtattr(tb, NDTA_MAX, NDTA_RTA(ndtm), 365 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ndtm))); 366 367 if (tb[NDTA_NAME]) { 368 const char *name = rta_getattr_str(tb[NDTA_NAME]); 369 370 if (filter.name && strcmp(filter.name, name)) 371 return 0; 372 } 373 if (tb[NDTA_PARMS]) { 374 parse_rtattr(tpb, NDTPA_MAX, RTA_DATA(tb[NDTA_PARMS]), 375 RTA_PAYLOAD(tb[NDTA_PARMS])); 376 377 if (tpb[NDTPA_IFINDEX]) { 378 __u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]); 379 380 if (filter.index && filter.index != ifindex) 381 return 0; 382 } else { 383 if (filter.index && filter.index != NONE_DEV) 384 return 0; 385 } 386 } 387 388 if (ndtm->ndtm_family == AF_INET) 389 fprintf(fp, "inet "); 390 else if (ndtm->ndtm_family == AF_INET6) 391 fprintf(fp, "inet6 "); 392 else if (ndtm->ndtm_family == AF_DECnet) 393 fprintf(fp, "dnet "); 394 else 395 fprintf(fp, "(%d) ", ndtm->ndtm_family); 396 397 if (tb[NDTA_NAME]) { 398 const char *name = rta_getattr_str(tb[NDTA_NAME]); 399 400 fprintf(fp, "%s ", name); 401 } 402 403 fprintf(fp, "%s", _SL_); 404 405 ret = (tb[NDTA_THRESH1] || tb[NDTA_THRESH2] || tb[NDTA_THRESH3] || 406 tb[NDTA_GC_INTERVAL]); 407 if (ret) 408 fprintf(fp, " "); 409 410 if (tb[NDTA_THRESH1]) { 411 __u32 thresh1 = rta_getattr_u32(tb[NDTA_THRESH1]); 412 413 fprintf(fp, "thresh1 %u ", thresh1); 414 } 415 if (tb[NDTA_THRESH2]) { 416 __u32 thresh2 = rta_getattr_u32(tb[NDTA_THRESH2]); 417 418 fprintf(fp, "thresh2 %u ", thresh2); 419 } 420 if (tb[NDTA_THRESH3]) { 421 __u32 thresh3 = rta_getattr_u32(tb[NDTA_THRESH3]); 422 423 fprintf(fp, "thresh3 %u ", thresh3); 424 } 425 if (tb[NDTA_GC_INTERVAL]) { 426 unsigned long long gc_int = rta_getattr_u64(tb[NDTA_GC_INTERVAL]); 427 428 fprintf(fp, "gc_int %llu ", gc_int); 429 } 430 431 if (ret) 432 fprintf(fp, "%s", _SL_); 433 434 if (tb[NDTA_CONFIG] && show_stats) { 435 struct ndt_config *ndtc = RTA_DATA(tb[NDTA_CONFIG]); 436 437 fprintf(fp, " "); 438 fprintf(fp, "config "); 439 440 fprintf(fp, "key_len %u ", ndtc->ndtc_key_len); 441 fprintf(fp, "entry_size %u ", ndtc->ndtc_entry_size); 442 fprintf(fp, "entries %u ", ndtc->ndtc_entries); 443 444 fprintf(fp, "%s", _SL_); 445 fprintf(fp, " "); 446 447 fprintf(fp, "last_flush %s ", 448 ntable_strtime_delta(ndtc->ndtc_last_flush)); 449 fprintf(fp, "last_rand %s ", 450 ntable_strtime_delta(ndtc->ndtc_last_rand)); 451 452 fprintf(fp, "%s", _SL_); 453 fprintf(fp, " "); 454 455 fprintf(fp, "hash_rnd %u ", ndtc->ndtc_hash_rnd); 456 fprintf(fp, "hash_mask %08x ", ndtc->ndtc_hash_mask); 457 458 fprintf(fp, "hash_chain_gc %u ", ndtc->ndtc_hash_chain_gc); 459 fprintf(fp, "proxy_qlen %u ", ndtc->ndtc_proxy_qlen); 460 461 fprintf(fp, "%s", _SL_); 462 } 463 464 if (tb[NDTA_PARMS]) { 465 if (tpb[NDTPA_IFINDEX]) { 466 __u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]); 467 468 fprintf(fp, " "); 469 fprintf(fp, "dev %s ", ll_index_to_name(ifindex)); 470 fprintf(fp, "%s", _SL_); 471 } 472 473 fprintf(fp, " "); 474 475 if (tpb[NDTPA_REFCNT]) { 476 __u32 refcnt = rta_getattr_u32(tpb[NDTPA_REFCNT]); 477 478 fprintf(fp, "refcnt %u ", refcnt); 479 } 480 if (tpb[NDTPA_REACHABLE_TIME]) { 481 unsigned long long reachable = rta_getattr_u64(tpb[NDTPA_REACHABLE_TIME]); 482 483 fprintf(fp, "reachable %llu ", reachable); 484 } 485 if (tpb[NDTPA_BASE_REACHABLE_TIME]) { 486 unsigned long long breachable = rta_getattr_u64(tpb[NDTPA_BASE_REACHABLE_TIME]); 487 488 fprintf(fp, "base_reachable %llu ", breachable); 489 } 490 if (tpb[NDTPA_RETRANS_TIME]) { 491 unsigned long long retrans = rta_getattr_u64(tpb[NDTPA_RETRANS_TIME]); 492 493 fprintf(fp, "retrans %llu ", retrans); 494 } 495 496 fprintf(fp, "%s", _SL_); 497 498 fprintf(fp, " "); 499 500 if (tpb[NDTPA_GC_STALETIME]) { 501 unsigned long long gc_stale = rta_getattr_u64(tpb[NDTPA_GC_STALETIME]); 502 503 fprintf(fp, "gc_stale %llu ", gc_stale); 504 } 505 if (tpb[NDTPA_DELAY_PROBE_TIME]) { 506 unsigned long long delay_probe = rta_getattr_u64(tpb[NDTPA_DELAY_PROBE_TIME]); 507 508 fprintf(fp, "delay_probe %llu ", delay_probe); 509 } 510 if (tpb[NDTPA_QUEUE_LEN]) { 511 __u32 queue = rta_getattr_u32(tpb[NDTPA_QUEUE_LEN]); 512 513 fprintf(fp, "queue %u ", queue); 514 } 515 516 fprintf(fp, "%s", _SL_); 517 518 fprintf(fp, " "); 519 520 if (tpb[NDTPA_APP_PROBES]) { 521 __u32 aprobe = rta_getattr_u32(tpb[NDTPA_APP_PROBES]); 522 523 fprintf(fp, "app_probes %u ", aprobe); 524 } 525 if (tpb[NDTPA_UCAST_PROBES]) { 526 __u32 uprobe = rta_getattr_u32(tpb[NDTPA_UCAST_PROBES]); 527 528 fprintf(fp, "ucast_probes %u ", uprobe); 529 } 530 if (tpb[NDTPA_MCAST_PROBES]) { 531 __u32 mprobe = rta_getattr_u32(tpb[NDTPA_MCAST_PROBES]); 532 533 fprintf(fp, "mcast_probes %u ", mprobe); 534 } 535 536 fprintf(fp, "%s", _SL_); 537 538 fprintf(fp, " "); 539 540 if (tpb[NDTPA_ANYCAST_DELAY]) { 541 unsigned long long anycast_delay = rta_getattr_u64(tpb[NDTPA_ANYCAST_DELAY]); 542 543 fprintf(fp, "anycast_delay %llu ", anycast_delay); 544 } 545 if (tpb[NDTPA_PROXY_DELAY]) { 546 unsigned long long proxy_delay = rta_getattr_u64(tpb[NDTPA_PROXY_DELAY]); 547 548 fprintf(fp, "proxy_delay %llu ", proxy_delay); 549 } 550 if (tpb[NDTPA_PROXY_QLEN]) { 551 __u32 pqueue = rta_getattr_u32(tpb[NDTPA_PROXY_QLEN]); 552 553 fprintf(fp, "proxy_queue %u ", pqueue); 554 } 555 if (tpb[NDTPA_LOCKTIME]) { 556 unsigned long long locktime = rta_getattr_u64(tpb[NDTPA_LOCKTIME]); 557 558 fprintf(fp, "locktime %llu ", locktime); 559 } 560 561 fprintf(fp, "%s", _SL_); 562 } 563 564 if (tb[NDTA_STATS] && show_stats) { 565 struct ndt_stats *ndts = RTA_DATA(tb[NDTA_STATS]); 566 567 fprintf(fp, " "); 568 fprintf(fp, "stats "); 569 570 fprintf(fp, "allocs %llu ", 571 (unsigned long long) ndts->ndts_allocs); 572 fprintf(fp, "destroys %llu ", 573 (unsigned long long) ndts->ndts_destroys); 574 fprintf(fp, "hash_grows %llu ", 575 (unsigned long long) ndts->ndts_hash_grows); 576 577 fprintf(fp, "%s", _SL_); 578 fprintf(fp, " "); 579 580 fprintf(fp, "res_failed %llu ", 581 (unsigned long long) ndts->ndts_res_failed); 582 fprintf(fp, "lookups %llu ", 583 (unsigned long long) ndts->ndts_lookups); 584 fprintf(fp, "hits %llu ", 585 (unsigned long long) ndts->ndts_hits); 586 587 fprintf(fp, "%s", _SL_); 588 fprintf(fp, " "); 589 590 fprintf(fp, "rcv_probes_mcast %llu ", 591 (unsigned long long) ndts->ndts_rcv_probes_mcast); 592 fprintf(fp, "rcv_probes_ucast %llu ", 593 (unsigned long long) ndts->ndts_rcv_probes_ucast); 594 595 fprintf(fp, "%s", _SL_); 596 fprintf(fp, " "); 597 598 fprintf(fp, "periodic_gc_runs %llu ", 599 (unsigned long long) ndts->ndts_periodic_gc_runs); 600 fprintf(fp, "forced_gc_runs %llu ", 601 (unsigned long long) ndts->ndts_forced_gc_runs); 602 603 fprintf(fp, "%s", _SL_); 604 } 605 606 fprintf(fp, "\n"); 607 608 fflush(fp); 609 return 0; 610 } 611 612 static void ipntable_reset_filter(void) 613 { 614 memset(&filter, 0, sizeof(filter)); 615 } 616 617 static int ipntable_show(int argc, char **argv) 618 { 619 ipntable_reset_filter(); 620 621 filter.family = preferred_family; 622 623 while (argc > 0) { 624 if (strcmp(*argv, "dev") == 0) { 625 NEXT_ARG(); 626 627 if (strcmp("none", *argv) == 0) 628 filter.index = NONE_DEV; 629 else if ((filter.index = ll_name_to_index(*argv)) == 0) 630 invarg("\"DEV\" is invalid", *argv); 631 } else if (strcmp(*argv, "name") == 0) { 632 NEXT_ARG(); 633 634 filter.name = *argv; 635 } else 636 invarg("unknown", *argv); 637 638 argc--; argv++; 639 } 640 641 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETNEIGHTBL) < 0) { 642 perror("Cannot send dump request"); 643 exit(1); 644 } 645 646 if (rtnl_dump_filter(&rth, print_ntable, stdout) < 0) { 647 fprintf(stderr, "Dump terminated\n"); 648 exit(1); 649 } 650 651 return 0; 652 } 653 654 int do_ipntable(int argc, char **argv) 655 { 656 ll_init_map(&rth); 657 658 if (argc > 0) { 659 if (matches(*argv, "change") == 0 || 660 matches(*argv, "chg") == 0) 661 return ipntable_modify(RTM_SETNEIGHTBL, 662 NLM_F_REPLACE, 663 argc-1, argv+1); 664 if (matches(*argv, "show") == 0 || 665 matches(*argv, "lst") == 0 || 666 matches(*argv, "list") == 0) 667 return ipntable_show(argc-1, argv+1); 668 if (matches(*argv, "help") == 0) 669 usage(); 670 } else 671 return ipntable_show(0, NULL); 672 673 fprintf(stderr, "Command \"%s\" is unknown, try \"ip ntable help\".\n", *argv); 674 exit(-1); 675 } 676
