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Commit | Line | Data |
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aba5acdf SH |
1 | /* |
2 | * ipneigh.c "ip neigh". | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
10 | * | |
aba5acdf SH |
11 | */ |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <unistd.h> | |
16 | #include <syslog.h> | |
17 | #include <fcntl.h> | |
18 | #include <string.h> | |
19 | #include <sys/time.h> | |
aba5acdf SH |
20 | #include <sys/socket.h> |
21 | #include <netinet/in.h> | |
22 | #include <netinet/ip.h> | |
23 | ||
24 | #include "rt_names.h" | |
25 | #include "utils.h" | |
26 | #include "ip_common.h" | |
27 | ||
28 | #define NUD_VALID (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE|NUD_PROBE|NUD_STALE|NUD_DELAY) | |
66081849 | 29 | #define MAX_ROUNDS 10 |
aba5acdf SH |
30 | |
31 | static struct | |
32 | { | |
33 | int family; | |
56f5daac | 34 | int index; |
aba5acdf SH |
35 | int state; |
36 | int unused_only; | |
37 | inet_prefix pfx; | |
38 | int flushed; | |
39 | char *flushb; | |
40 | int flushp; | |
41 | int flushe; | |
0d238ca2 | 42 | int master; |
aba5acdf SH |
43 | } filter; |
44 | ||
45 | static void usage(void) __attribute__((noreturn)); | |
46 | ||
47 | static void usage(void) | |
48 | { | |
03a0cf20 PS |
49 | fprintf(stderr, "Usage: ip neigh { add | del | change | replace }\n" |
50 | " { ADDR [ lladdr LLADDR ] [ nud STATE ] | proxy ADDR } [ dev DEV ]\n"); | |
5db1adae DA |
51 | fprintf(stderr, " ip neigh { show | flush } [ proxy ] [ to PREFIX ] [ dev DEV ] [ nud STATE ]\n"); |
52 | fprintf(stderr, " [ vrf NAME ]\n\n"); | |
03a0cf20 | 53 | fprintf(stderr, "STATE := { permanent | noarp | stale | reachable | none |\n" |
56f5daac | 54 | " incomplete | delay | probe | failed }\n"); |
aba5acdf SH |
55 | exit(-1); |
56 | } | |
57 | ||
56f5daac | 58 | static int nud_state_a2n(unsigned int *state, const char *arg) |
aba5acdf SH |
59 | { |
60 | if (matches(arg, "permanent") == 0) | |
61 | *state = NUD_PERMANENT; | |
62 | else if (matches(arg, "reachable") == 0) | |
63 | *state = NUD_REACHABLE; | |
64 | else if (strcmp(arg, "noarp") == 0) | |
65 | *state = NUD_NOARP; | |
66 | else if (strcmp(arg, "none") == 0) | |
67 | *state = NUD_NONE; | |
68 | else if (strcmp(arg, "stale") == 0) | |
69 | *state = NUD_STALE; | |
70 | else if (strcmp(arg, "incomplete") == 0) | |
71 | *state = NUD_INCOMPLETE; | |
72 | else if (strcmp(arg, "delay") == 0) | |
73 | *state = NUD_DELAY; | |
74 | else if (strcmp(arg, "probe") == 0) | |
75 | *state = NUD_PROBE; | |
76 | else if (matches(arg, "failed") == 0) | |
77 | *state = NUD_FAILED; | |
78 | else { | |
79 | if (get_unsigned(state, arg, 0)) | |
80 | return -1; | |
56f5daac | 81 | if (*state >= 0x100 || (*state&((*state)-1))) |
aba5acdf SH |
82 | return -1; |
83 | } | |
84 | return 0; | |
85 | } | |
86 | ||
aba5acdf SH |
87 | static int flush_update(void) |
88 | { | |
f31a37f7 | 89 | if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) { |
1fb0a998 | 90 | perror("Failed to send flush request"); |
aba5acdf SH |
91 | return -1; |
92 | } | |
93 | filter.flushp = 0; | |
94 | return 0; | |
95 | } | |
96 | ||
97 | ||
98 | static int ipneigh_modify(int cmd, int flags, int argc, char **argv) | |
99 | { | |
aba5acdf | 100 | struct { |
4806867a SH |
101 | struct nlmsghdr n; |
102 | struct ndmsg ndm; | |
56f5daac | 103 | char buf[256]; |
d17b136f PS |
104 | } req = { |
105 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)), | |
106 | .n.nlmsg_flags = NLM_F_REQUEST | flags, | |
107 | .n.nlmsg_type = cmd, | |
108 | .ndm.ndm_family = preferred_family, | |
109 | .ndm.ndm_state = NUD_PERMANENT, | |
110 | }; | |
e834eb8e | 111 | char *dev = NULL; |
aba5acdf | 112 | int dst_ok = 0; |
e834eb8e | 113 | int dev_ok = 0; |
aba5acdf | 114 | int lladdr_ok = 0; |
56f5daac | 115 | char *lla = NULL; |
aba5acdf SH |
116 | inet_prefix dst; |
117 | ||
aba5acdf SH |
118 | while (argc > 0) { |
119 | if (matches(*argv, "lladdr") == 0) { | |
120 | NEXT_ARG(); | |
121 | if (lladdr_ok) | |
122 | duparg("lladdr", *argv); | |
123 | lla = *argv; | |
124 | lladdr_ok = 1; | |
125 | } else if (strcmp(*argv, "nud") == 0) { | |
56f5daac SH |
126 | unsigned int state; |
127 | ||
aba5acdf SH |
128 | NEXT_ARG(); |
129 | if (nud_state_a2n(&state, *argv)) | |
130 | invarg("nud state is bad", *argv); | |
131 | req.ndm.ndm_state = state; | |
132 | } else if (matches(*argv, "proxy") == 0) { | |
133 | NEXT_ARG(); | |
134 | if (matches(*argv, "help") == 0) | |
135 | usage(); | |
136 | if (dst_ok) | |
137 | duparg("address", *argv); | |
138 | get_addr(&dst, *argv, preferred_family); | |
139 | dst_ok = 1; | |
e834eb8e | 140 | dev_ok = 1; |
aba5acdf SH |
141 | req.ndm.ndm_flags |= NTF_PROXY; |
142 | } else if (strcmp(*argv, "dev") == 0) { | |
143 | NEXT_ARG(); | |
e834eb8e KK |
144 | dev = *argv; |
145 | dev_ok = 1; | |
aba5acdf SH |
146 | } else { |
147 | if (strcmp(*argv, "to") == 0) { | |
148 | NEXT_ARG(); | |
149 | } | |
150 | if (matches(*argv, "help") == 0) { | |
151 | NEXT_ARG(); | |
152 | } | |
153 | if (dst_ok) | |
154 | duparg2("to", *argv); | |
155 | get_addr(&dst, *argv, preferred_family); | |
156 | dst_ok = 1; | |
157 | } | |
158 | argc--; argv++; | |
159 | } | |
e834eb8e | 160 | if (!dev_ok || !dst_ok || dst.family == AF_UNSPEC) { |
aba5acdf SH |
161 | fprintf(stderr, "Device and destination are required arguments.\n"); |
162 | exit(-1); | |
163 | } | |
164 | req.ndm.ndm_family = dst.family; | |
542b0cc7 SH |
165 | if (addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen) < 0) |
166 | return -1; | |
aba5acdf SH |
167 | |
168 | if (lla && strcmp(lla, "null")) { | |
7b565754 | 169 | char llabuf[20]; |
aba5acdf SH |
170 | int l; |
171 | ||
172 | l = ll_addr_a2n(llabuf, sizeof(llabuf), lla); | |
542b0cc7 SH |
173 | if (l < 0) |
174 | return -1; | |
175 | ||
176 | if (addattr_l(&req.n, sizeof(req), NDA_LLADDR, llabuf, l) < 0) | |
177 | return -1; | |
aba5acdf SH |
178 | } |
179 | ||
aba5acdf SH |
180 | ll_init_map(&rth); |
181 | ||
e834eb8e KK |
182 | if (dev && (req.ndm.ndm_ifindex = ll_name_to_index(dev)) == 0) { |
183 | fprintf(stderr, "Cannot find device \"%s\"\n", dev); | |
aba5acdf SH |
184 | return -1; |
185 | } | |
186 | ||
86bf43c7 | 187 | if (rtnl_talk(&rth, &req.n, NULL) < 0) |
aba5acdf SH |
188 | exit(2); |
189 | ||
351efcde | 190 | return 0; |
aba5acdf SH |
191 | } |
192 | ||
193 | ||
50772dc5 | 194 | int print_neigh(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) |
aba5acdf | 195 | { |
56f5daac | 196 | FILE *fp = (FILE *)arg; |
aba5acdf SH |
197 | struct ndmsg *r = NLMSG_DATA(n); |
198 | int len = n->nlmsg_len; | |
56f5daac | 199 | struct rtattr *tb[NDA_MAX+1]; |
0d238ca2 | 200 | static int logit = 1; |
aba5acdf | 201 | |
1556e29d DS |
202 | if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH && |
203 | n->nlmsg_type != RTM_GETNEIGH) { | |
aba5acdf SH |
204 | fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n", |
205 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); | |
ae665a52 | 206 | |
aba5acdf SH |
207 | return 0; |
208 | } | |
209 | len -= NLMSG_LENGTH(sizeof(*r)); | |
210 | if (len < 0) { | |
211 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
212 | return -1; | |
213 | } | |
214 | ||
215 | if (filter.flushb && n->nlmsg_type != RTM_NEWNEIGH) | |
216 | return 0; | |
217 | ||
218 | if (filter.family && filter.family != r->ndm_family) | |
219 | return 0; | |
220 | if (filter.index && filter.index != r->ndm_ifindex) | |
221 | return 0; | |
222 | if (!(filter.state&r->ndm_state) && | |
1dac7817 | 223 | !(r->ndm_flags & NTF_PROXY) && |
aba5acdf | 224 | (r->ndm_state || !(filter.state&0x100)) && |
56f5daac | 225 | (r->ndm_family != AF_DECnet)) |
aba5acdf SH |
226 | return 0; |
227 | ||
0d238ca2 DA |
228 | if (filter.master && !(n->nlmsg_flags & NLM_F_DUMP_FILTERED)) { |
229 | if (logit) { | |
230 | logit = 0; | |
231 | fprintf(fp, | |
232 | "\nWARNING: Kernel does not support filtering by master device\n\n"); | |
233 | } | |
234 | } | |
235 | ||
aba5acdf SH |
236 | parse_rtattr(tb, NDA_MAX, NDA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
237 | ||
238 | if (tb[NDA_DST]) { | |
239 | if (filter.pfx.family) { | |
d17b136f | 240 | inet_prefix dst = { .family = r->ndm_family }; |
56f5daac | 241 | |
aba5acdf SH |
242 | memcpy(&dst.data, RTA_DATA(tb[NDA_DST]), RTA_PAYLOAD(tb[NDA_DST])); |
243 | if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen)) | |
244 | return 0; | |
245 | } | |
246 | } | |
247 | if (filter.unused_only && tb[NDA_CACHEINFO]) { | |
248 | struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]); | |
56f5daac | 249 | |
aba5acdf SH |
250 | if (ci->ndm_refcnt) |
251 | return 0; | |
252 | } | |
253 | ||
254 | if (filter.flushb) { | |
255 | struct nlmsghdr *fn; | |
56f5daac | 256 | |
aba5acdf SH |
257 | if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { |
258 | if (flush_update()) | |
259 | return -1; | |
260 | } | |
56f5daac | 261 | fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp)); |
aba5acdf SH |
262 | memcpy(fn, n, n->nlmsg_len); |
263 | fn->nlmsg_type = RTM_DELNEIGH; | |
264 | fn->nlmsg_flags = NLM_F_REQUEST; | |
351efcde | 265 | fn->nlmsg_seq = ++rth.seq; |
56f5daac | 266 | filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb; |
aba5acdf SH |
267 | filter.flushed++; |
268 | if (show_stats < 2) | |
269 | return 0; | |
270 | } | |
271 | ||
6ea3ebaf | 272 | if (n->nlmsg_type == RTM_DELNEIGH) |
39ca4879 | 273 | fprintf(fp, "Deleted "); |
1556e29d DS |
274 | else if (n->nlmsg_type == RTM_GETNEIGH) |
275 | fprintf(fp, "miss "); | |
aba5acdf | 276 | if (tb[NDA_DST]) { |
ae665a52 | 277 | fprintf(fp, "%s ", |
d49f934c | 278 | format_host_rta(r->ndm_family, tb[NDA_DST])); |
aba5acdf SH |
279 | } |
280 | if (!filter.index && r->ndm_ifindex) | |
281 | fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex)); | |
282 | if (tb[NDA_LLADDR]) { | |
283 | SPRINT_BUF(b1); | |
284 | fprintf(fp, "lladdr %s", ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]), | |
285 | RTA_PAYLOAD(tb[NDA_LLADDR]), | |
286 | ll_index_to_type(r->ndm_ifindex), | |
287 | b1, sizeof(b1))); | |
288 | } | |
289 | if (r->ndm_flags & NTF_ROUTER) { | |
290 | fprintf(fp, " router"); | |
291 | } | |
1dac7817 TZ |
292 | if (r->ndm_flags & NTF_PROXY) { |
293 | fprintf(fp, " proxy"); | |
294 | } | |
aba5acdf | 295 | if (tb[NDA_CACHEINFO] && show_stats) { |
aba5acdf | 296 | struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]); |
6a34d291 SH |
297 | int hz = get_user_hz(); |
298 | ||
aba5acdf SH |
299 | if (ci->ndm_refcnt) |
300 | printf(" ref %d", ci->ndm_refcnt); | |
301 | fprintf(fp, " used %d/%d/%d", ci->ndm_used/hz, | |
302 | ci->ndm_confirmed/hz, ci->ndm_updated/hz); | |
303 | } | |
304 | ||
69410a49 | 305 | if (tb[NDA_PROBES] && show_stats) { |
ff24746c | 306 | __u32 p = rta_getattr_u32(tb[NDA_PROBES]); |
56f5daac | 307 | |
69410a49 | 308 | fprintf(fp, " probes %u", p); |
309 | } | |
310 | ||
aba5acdf | 311 | if (r->ndm_state) { |
435ac6b8 | 312 | int nud = r->ndm_state; |
56f5daac | 313 | |
435ac6b8 | 314 | fprintf(fp, " "); |
315 | ||
316 | #define PRINT_FLAG(f) if (nud & NUD_##f) { \ | |
317 | nud &= ~NUD_##f; fprintf(fp, #f "%s", nud ? "," : ""); } | |
318 | PRINT_FLAG(INCOMPLETE); | |
319 | PRINT_FLAG(REACHABLE); | |
320 | PRINT_FLAG(STALE); | |
321 | PRINT_FLAG(DELAY); | |
322 | PRINT_FLAG(PROBE); | |
323 | PRINT_FLAG(FAILED); | |
324 | PRINT_FLAG(NOARP); | |
325 | PRINT_FLAG(PERMANENT); | |
326 | #undef PRINT_FLAG | |
aba5acdf SH |
327 | } |
328 | fprintf(fp, "\n"); | |
329 | ||
330 | fflush(fp); | |
331 | return 0; | |
332 | } | |
333 | ||
093b7646 | 334 | void ipneigh_reset_filter(int ifindex) |
aba5acdf SH |
335 | { |
336 | memset(&filter, 0, sizeof(filter)); | |
337 | filter.state = ~0; | |
093b7646 | 338 | filter.index = ifindex; |
aba5acdf SH |
339 | } |
340 | ||
d1f28cf1 | 341 | static int do_show_or_flush(int argc, char **argv, int flush) |
aba5acdf | 342 | { |
0d238ca2 DA |
343 | struct { |
344 | struct nlmsghdr n; | |
345 | struct ndmsg ndm; | |
56f5daac | 346 | char buf[256]; |
d17b136f PS |
347 | } req = { |
348 | .n.nlmsg_type = RTM_GETNEIGH, | |
349 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)), | |
350 | }; | |
aba5acdf | 351 | char *filter_dev = NULL; |
aba5acdf | 352 | int state_given = 0; |
0d238ca2 | 353 | |
093b7646 | 354 | ipneigh_reset_filter(0); |
aba5acdf SH |
355 | |
356 | if (!filter.family) | |
357 | filter.family = preferred_family; | |
358 | ||
359 | if (flush) { | |
360 | if (argc <= 0) { | |
361 | fprintf(stderr, "Flush requires arguments.\n"); | |
362 | return -1; | |
363 | } | |
364 | filter.state = ~(NUD_PERMANENT|NUD_NOARP); | |
365 | } else | |
366 | filter.state = 0xFF & ~NUD_NOARP; | |
367 | ||
368 | while (argc > 0) { | |
369 | if (strcmp(*argv, "dev") == 0) { | |
370 | NEXT_ARG(); | |
371 | if (filter_dev) | |
372 | duparg("dev", *argv); | |
373 | filter_dev = *argv; | |
0d238ca2 DA |
374 | } else if (strcmp(*argv, "master") == 0) { |
375 | int ifindex; | |
56f5daac | 376 | |
0d238ca2 DA |
377 | NEXT_ARG(); |
378 | ifindex = ll_name_to_index(*argv); | |
379 | if (!ifindex) | |
380 | invarg("Device does not exist\n", *argv); | |
381 | addattr32(&req.n, sizeof(req), NDA_MASTER, ifindex); | |
382 | filter.master = ifindex; | |
5db1adae DA |
383 | } else if (strcmp(*argv, "vrf") == 0) { |
384 | int ifindex; | |
385 | ||
386 | NEXT_ARG(); | |
387 | ifindex = ll_name_to_index(*argv); | |
388 | if (!ifindex) | |
389 | invarg("Not a valid VRF name\n", *argv); | |
390 | if (!name_is_vrf(*argv)) | |
391 | invarg("Not a valid VRF name\n", *argv); | |
392 | addattr32(&req.n, sizeof(req), NDA_MASTER, ifindex); | |
393 | filter.master = ifindex; | |
aba5acdf SH |
394 | } else if (strcmp(*argv, "unused") == 0) { |
395 | filter.unused_only = 1; | |
396 | } else if (strcmp(*argv, "nud") == 0) { | |
56f5daac SH |
397 | unsigned int state; |
398 | ||
aba5acdf SH |
399 | NEXT_ARG(); |
400 | if (!state_given) { | |
401 | state_given = 1; | |
402 | filter.state = 0; | |
403 | } | |
404 | if (nud_state_a2n(&state, *argv)) { | |
405 | if (strcmp(*argv, "all") != 0) | |
406 | invarg("nud state is bad", *argv); | |
407 | state = ~0; | |
408 | if (flush) | |
409 | state &= ~NUD_NOARP; | |
410 | } | |
411 | if (state == 0) | |
412 | state = 0x100; | |
413 | filter.state |= state; | |
1dac7817 | 414 | } else if (strcmp(*argv, "proxy") == 0) |
0d238ca2 | 415 | req.ndm.ndm_flags = NTF_PROXY; |
1dac7817 | 416 | else { |
aba5acdf SH |
417 | if (strcmp(*argv, "to") == 0) { |
418 | NEXT_ARG(); | |
419 | } | |
420 | if (matches(*argv, "help") == 0) | |
421 | usage(); | |
422 | get_prefix(&filter.pfx, *argv, filter.family); | |
423 | if (filter.family == AF_UNSPEC) | |
424 | filter.family = filter.pfx.family; | |
425 | } | |
426 | argc--; argv++; | |
427 | } | |
428 | ||
aba5acdf SH |
429 | ll_init_map(&rth); |
430 | ||
431 | if (filter_dev) { | |
432 | if ((filter.index = ll_name_to_index(filter_dev)) == 0) { | |
433 | fprintf(stderr, "Cannot find device \"%s\"\n", filter_dev); | |
434 | return -1; | |
435 | } | |
b8c75324 | 436 | addattr32(&req.n, sizeof(req), NDA_IFINDEX, filter.index); |
aba5acdf SH |
437 | } |
438 | ||
1c346dcc JH |
439 | req.ndm.ndm_family = filter.family; |
440 | ||
aba5acdf SH |
441 | if (flush) { |
442 | int round = 0; | |
443 | char flushb[4096-512]; | |
444 | ||
445 | filter.flushb = flushb; | |
446 | filter.flushp = 0; | |
447 | filter.flushe = sizeof(flushb); | |
aba5acdf | 448 | |
66081849 | 449 | while (round < MAX_ROUNDS) { |
1c346dcc | 450 | if (rtnl_dump_request_n(&rth, &req.n) < 0) { |
aba5acdf SH |
451 | perror("Cannot send dump request"); |
452 | exit(1); | |
453 | } | |
454 | filter.flushed = 0; | |
cd70f3f5 | 455 | if (rtnl_dump_filter(&rth, print_neigh, stdout) < 0) { |
aba5acdf SH |
456 | fprintf(stderr, "Flush terminated\n"); |
457 | exit(1); | |
458 | } | |
459 | if (filter.flushed == 0) { | |
f0b34d2d AH |
460 | if (show_stats) { |
461 | if (round == 0) | |
462 | printf("Nothing to flush.\n"); | |
463 | else | |
56f5daac | 464 | printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":""); |
f0b34d2d | 465 | } |
aba5acdf SH |
466 | fflush(stdout); |
467 | return 0; | |
468 | } | |
469 | round++; | |
470 | if (flush_update() < 0) | |
471 | exit(1); | |
472 | if (show_stats) { | |
473 | printf("\n*** Round %d, deleting %d entries ***\n", round, filter.flushed); | |
474 | fflush(stdout); | |
475 | } | |
ad0a6a2c | 476 | filter.state &= ~NUD_FAILED; |
aba5acdf | 477 | } |
66081849 SH |
478 | printf("*** Flush not complete bailing out after %d rounds\n", |
479 | MAX_ROUNDS); | |
480 | return 1; | |
aba5acdf SH |
481 | } |
482 | ||
0d238ca2 | 483 | if (rtnl_dump_request_n(&rth, &req.n) < 0) { |
aba5acdf SH |
484 | perror("Cannot send dump request"); |
485 | exit(1); | |
486 | } | |
487 | ||
cd70f3f5 | 488 | if (rtnl_dump_filter(&rth, print_neigh, stdout) < 0) { |
aba5acdf SH |
489 | fprintf(stderr, "Dump terminated\n"); |
490 | exit(1); | |
491 | } | |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
496 | int do_ipneigh(int argc, char **argv) | |
497 | { | |
498 | if (argc > 0) { | |
499 | if (matches(*argv, "add") == 0) | |
500 | return ipneigh_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1); | |
501 | if (matches(*argv, "change") == 0 || | |
502 | strcmp(*argv, "chg") == 0) | |
503 | return ipneigh_modify(RTM_NEWNEIGH, NLM_F_REPLACE, argc-1, argv+1); | |
504 | if (matches(*argv, "replace") == 0) | |
505 | return ipneigh_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1); | |
506 | if (matches(*argv, "delete") == 0) | |
507 | return ipneigh_modify(RTM_DELNEIGH, 0, argc-1, argv+1); | |
508 | if (matches(*argv, "get") == 0) { | |
509 | fprintf(stderr, "Sorry, \"neigh get\" is not implemented :-(\n"); | |
510 | return -1; | |
511 | } | |
512 | if (matches(*argv, "show") == 0 || | |
513 | matches(*argv, "lst") == 0 || | |
514 | matches(*argv, "list") == 0) | |
515 | return do_show_or_flush(argc-1, argv+1, 0); | |
516 | if (matches(*argv, "flush") == 0) | |
517 | return do_show_or_flush(argc-1, argv+1, 1); | |
518 | if (matches(*argv, "help") == 0) | |
519 | usage(); | |
520 | } else | |
521 | return do_show_or_flush(0, NULL, 0); | |
522 | ||
523 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip neigh help\".\n", *argv); | |
524 | exit(-1); | |
525 | } |