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1 /*
2 * ipaddress.c "ip address".
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 *
11 */
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include <syslog.h>
17 #include <fcntl.h>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/ioctl.h>
21 #include <sys/errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
24 #include <string.h>
25 #include <fnmatch.h>
26
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/sockios.h>
30
31 #include "rt_names.h"
32 #include "utils.h"
33 #include "ll_map.h"
34 #include "ip_common.h"
35
36
37 static struct
38 {
39 int ifindex;
40 int family;
41 int oneline;
42 int showqueue;
43 inet_prefix pfx;
44 int scope, scopemask;
45 int flags, flagmask;
46 int up;
47 char *label;
48 int flushed;
49 char *flushb;
50 int flushp;
51 int flushe;
52 } filter;
53
54 static int do_link;
55
56 static void usage(void) __attribute__((noreturn));
57
58 static void usage(void)
59 {
60 if (do_link) {
61 iplink_usage();
62 }
63 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
64 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
65 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
66 fprintf(stderr, " ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
67 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\n");
68 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
69 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
70 fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
71 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
72 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
73 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
74 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
75 fprintf(stderr, " CONFFLAG-LIST ]\n");
76 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
77 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
78 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
79 fprintf(stderr, "LFT := forever | SECONDS\n");
80
81 exit(-1);
82 }
83
84 void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
85 {
86 fprintf(fp, "<");
87 if (flags & IFF_UP && !(flags & IFF_RUNNING))
88 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
89 flags &= ~IFF_RUNNING;
90 #define _PF(f) if (flags&IFF_##f) { \
91 flags &= ~IFF_##f ; \
92 fprintf(fp, #f "%s", flags ? "," : ""); }
93 _PF(LOOPBACK);
94 _PF(BROADCAST);
95 _PF(POINTOPOINT);
96 _PF(MULTICAST);
97 _PF(NOARP);
98 _PF(ALLMULTI);
99 _PF(PROMISC);
100 _PF(MASTER);
101 _PF(SLAVE);
102 _PF(DEBUG);
103 _PF(DYNAMIC);
104 _PF(AUTOMEDIA);
105 _PF(PORTSEL);
106 _PF(NOTRAILERS);
107 _PF(UP);
108 _PF(LOWER_UP);
109 _PF(DORMANT);
110 _PF(ECHO);
111 #undef _PF
112 if (flags)
113 fprintf(fp, "%x", flags);
114 if (mdown)
115 fprintf(fp, ",M-DOWN");
116 fprintf(fp, "> ");
117 }
118
119 static const char *oper_states[] = {
120 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
121 "TESTING", "DORMANT", "UP"
122 };
123
124 static void print_operstate(FILE *f, __u8 state)
125 {
126 if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
127 fprintf(f, "state %#x ", state);
128 else
129 fprintf(f, "state %s ", oper_states[state]);
130 }
131
132 static void print_queuelen(FILE *f, const char *name)
133 {
134 struct ifreq ifr;
135 int s;
136
137 s = socket(AF_INET, SOCK_STREAM, 0);
138 if (s < 0)
139 return;
140
141 memset(&ifr, 0, sizeof(ifr));
142 strcpy(ifr.ifr_name, name);
143 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
144 fprintf(f, "ioctl(SIOCGIFXQLEN) failed: %s\n", strerror(errno));
145 close(s);
146 return;
147 }
148 close(s);
149
150 if (ifr.ifr_qlen)
151 fprintf(f, "qlen %d", ifr.ifr_qlen);
152 }
153
154 static void print_linktype(FILE *fp, struct rtattr *tb)
155 {
156 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
157 struct link_util *lu;
158 char *kind;
159
160 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
161
162 if (!linkinfo[IFLA_INFO_KIND])
163 return;
164 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
165
166 fprintf(fp, "%s", _SL_);
167 fprintf(fp, " %s ", kind);
168
169 lu = get_link_kind(kind);
170 if (!lu || !lu->print_opt)
171 return;
172
173 if (1) {
174 struct rtattr *attr[lu->maxattr+1], **data = NULL;
175
176 if (linkinfo[IFLA_INFO_DATA]) {
177 parse_rtattr_nested(attr, lu->maxattr,
178 linkinfo[IFLA_INFO_DATA]);
179 data = attr;
180 }
181 lu->print_opt(lu, fp, data);
182
183 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
184 lu->print_xstats)
185 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
186 }
187 }
188
189 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
190 {
191 struct ifla_vf_mac *vf_mac;
192 struct ifla_vf_vlan *vf_vlan;
193 struct ifla_vf_tx_rate *vf_tx_rate;
194 struct rtattr *vf[IFLA_VF_MAX+1];
195 SPRINT_BUF(b1);
196
197 if (vfinfo->rta_type != IFLA_VF_INFO) {
198 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
199 return;
200 }
201
202 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
203
204 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
205 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
206 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
207
208 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
209 ll_addr_n2a((unsigned char *)&vf_mac->mac,
210 ETH_ALEN, 0, b1, sizeof(b1)));
211 if (vf_vlan->vlan)
212 fprintf(fp, ", vlan %d", vf_vlan->vlan);
213 if (vf_vlan->qos)
214 fprintf(fp, ", qos %d", vf_vlan->qos);
215 if (vf_tx_rate->rate)
216 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
217 }
218
219 int print_linkinfo(const struct sockaddr_nl *who,
220 struct nlmsghdr *n, void *arg)
221 {
222 FILE *fp = (FILE*)arg;
223 struct ifinfomsg *ifi = NLMSG_DATA(n);
224 struct rtattr * tb[IFLA_MAX+1];
225 int len = n->nlmsg_len;
226 unsigned m_flag = 0;
227
228 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
229 return 0;
230
231 len -= NLMSG_LENGTH(sizeof(*ifi));
232 if (len < 0)
233 return -1;
234
235 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
236 return 0;
237 if (filter.up && !(ifi->ifi_flags&IFF_UP))
238 return 0;
239
240 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
241 if (tb[IFLA_IFNAME] == NULL) {
242 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
243 }
244 if (filter.label &&
245 (!filter.family || filter.family == AF_PACKET) &&
246 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
247 return 0;
248
249 if (n->nlmsg_type == RTM_DELLINK)
250 fprintf(fp, "Deleted ");
251
252 fprintf(fp, "%d: %s", ifi->ifi_index,
253 tb[IFLA_IFNAME] ? (char*)RTA_DATA(tb[IFLA_IFNAME]) : "<nil>");
254
255 if (tb[IFLA_LINK]) {
256 SPRINT_BUF(b1);
257 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
258 if (iflink == 0)
259 fprintf(fp, "@NONE: ");
260 else {
261 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
262 m_flag = ll_index_to_flags(iflink);
263 m_flag = !(m_flag & IFF_UP);
264 }
265 } else {
266 fprintf(fp, ": ");
267 }
268 print_link_flags(fp, ifi->ifi_flags, m_flag);
269
270 if (tb[IFLA_MTU])
271 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
272 if (tb[IFLA_QDISC])
273 fprintf(fp, "qdisc %s ", (char*)RTA_DATA(tb[IFLA_QDISC]));
274 #ifdef IFLA_MASTER
275 if (tb[IFLA_MASTER]) {
276 SPRINT_BUF(b1);
277 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
278 }
279 #endif
280 if (tb[IFLA_OPERSTATE])
281 print_operstate(fp, *(__u8 *)RTA_DATA(tb[IFLA_OPERSTATE]));
282
283 if (filter.showqueue)
284 print_queuelen(fp, (char*)RTA_DATA(tb[IFLA_IFNAME]));
285
286 if (!filter.family || filter.family == AF_PACKET) {
287 SPRINT_BUF(b1);
288 fprintf(fp, "%s", _SL_);
289 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
290
291 if (tb[IFLA_ADDRESS]) {
292 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
293 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
294 ifi->ifi_type,
295 b1, sizeof(b1)));
296 }
297 if (tb[IFLA_BROADCAST]) {
298 if (ifi->ifi_flags&IFF_POINTOPOINT)
299 fprintf(fp, " peer ");
300 else
301 fprintf(fp, " brd ");
302 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
303 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
304 ifi->ifi_type,
305 b1, sizeof(b1)));
306 }
307 }
308
309 if (do_link && tb[IFLA_LINKINFO] && show_details)
310 print_linktype(fp, tb[IFLA_LINKINFO]);
311
312 if (do_link && tb[IFLA_IFALIAS])
313 fprintf(fp,"\n alias %s",
314 (const char *) RTA_DATA(tb[IFLA_IFALIAS]));
315
316 if (do_link && tb[IFLA_STATS64] && show_stats) {
317 struct rtnl_link_stats64 slocal;
318 struct rtnl_link_stats64 *s = RTA_DATA(tb[IFLA_STATS64]);
319 if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
320 memcpy(&slocal, s, sizeof(slocal));
321 s = &slocal;
322 }
323 fprintf(fp, "%s", _SL_);
324 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
325 s->rx_compressed ? "compressed" : "", _SL_);
326 fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
327 (unsigned long long)s->rx_bytes,
328 (unsigned long long)s->rx_packets,
329 (unsigned long long)s->rx_errors,
330 (unsigned long long)s->rx_dropped,
331 (unsigned long long)s->rx_over_errors,
332 (unsigned long long)s->multicast);
333 if (s->rx_compressed)
334 fprintf(fp, " %-7llu",
335 (unsigned long long)s->rx_compressed);
336 if (show_stats > 1) {
337 fprintf(fp, "%s", _SL_);
338 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
339 fprintf(fp, " %-7llu %-7llu %-7llu %-7llu %-7llu",
340 (unsigned long long)s->rx_length_errors,
341 (unsigned long long)s->rx_crc_errors,
342 (unsigned long long)s->rx_frame_errors,
343 (unsigned long long)s->rx_fifo_errors,
344 (unsigned long long)s->rx_missed_errors);
345 }
346 fprintf(fp, "%s", _SL_);
347 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
348 s->tx_compressed ? "compressed" : "", _SL_);
349 fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
350 (unsigned long long)s->tx_bytes,
351 (unsigned long long)s->tx_packets,
352 (unsigned long long)s->tx_errors,
353 (unsigned long long)s->tx_dropped,
354 (unsigned long long)s->tx_carrier_errors,
355 (unsigned long long)s->collisions);
356 if (s->tx_compressed)
357 fprintf(fp, " %-7llu",
358 (unsigned long long)s->tx_compressed);
359 if (show_stats > 1) {
360 fprintf(fp, "%s", _SL_);
361 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
362 fprintf(fp, " %-7llu %-7llu %-7llu %-7llu",
363 (unsigned long long)s->tx_aborted_errors,
364 (unsigned long long)s->tx_fifo_errors,
365 (unsigned long long)s->tx_window_errors,
366 (unsigned long long)s->tx_heartbeat_errors);
367 }
368 }
369 if (do_link && !tb[IFLA_STATS64] && tb[IFLA_STATS] && show_stats) {
370 struct rtnl_link_stats slocal;
371 struct rtnl_link_stats *s = RTA_DATA(tb[IFLA_STATS]);
372 if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
373 memcpy(&slocal, s, sizeof(slocal));
374 s = &slocal;
375 }
376 fprintf(fp, "%s", _SL_);
377 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
378 s->rx_compressed ? "compressed" : "", _SL_);
379 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
380 s->rx_bytes, s->rx_packets, s->rx_errors,
381 s->rx_dropped, s->rx_over_errors,
382 s->multicast
383 );
384 if (s->rx_compressed)
385 fprintf(fp, " %-7u", s->rx_compressed);
386 if (show_stats > 1) {
387 fprintf(fp, "%s", _SL_);
388 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
389 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
390 s->rx_length_errors,
391 s->rx_crc_errors,
392 s->rx_frame_errors,
393 s->rx_fifo_errors,
394 s->rx_missed_errors
395 );
396 }
397 fprintf(fp, "%s", _SL_);
398 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
399 s->tx_compressed ? "compressed" : "", _SL_);
400 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
401 s->tx_bytes, s->tx_packets, s->tx_errors,
402 s->tx_dropped, s->tx_carrier_errors, s->collisions);
403 if (s->tx_compressed)
404 fprintf(fp, " %-7u", s->tx_compressed);
405 if (show_stats > 1) {
406 fprintf(fp, "%s", _SL_);
407 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
408 fprintf(fp, " %-7u %-7u %-7u %-7u",
409 s->tx_aborted_errors,
410 s->tx_fifo_errors,
411 s->tx_window_errors,
412 s->tx_heartbeat_errors
413 );
414 }
415 }
416 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
417 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
418 int rem = RTA_PAYLOAD(vflist);
419 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
420 print_vfinfo(fp, i);
421 }
422
423 fprintf(fp, "\n");
424 fflush(fp);
425 return 0;
426 }
427
428 static int flush_update(void)
429 {
430 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
431 perror("Failed to send flush request");
432 return -1;
433 }
434 filter.flushp = 0;
435 return 0;
436 }
437
438 static int set_lifetime(unsigned int *lifetime, char *argv)
439 {
440 if (strcmp(argv, "forever") == 0)
441 *lifetime = INFINITY_LIFE_TIME;
442 else if (get_u32(lifetime, argv, 0))
443 return -1;
444
445 return 0;
446 }
447
448 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
449 void *arg)
450 {
451 FILE *fp = (FILE*)arg;
452 struct ifaddrmsg *ifa = NLMSG_DATA(n);
453 int len = n->nlmsg_len;
454 int deprecated = 0;
455 /* Use local copy of ifa_flags to not interfere with filtering code */
456 unsigned int ifa_flags;
457 struct rtattr * rta_tb[IFA_MAX+1];
458 char abuf[256];
459 SPRINT_BUF(b1);
460
461 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
462 return 0;
463 len -= NLMSG_LENGTH(sizeof(*ifa));
464 if (len < 0) {
465 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
466 return -1;
467 }
468
469 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
470 return 0;
471
472 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
473
474 if (!rta_tb[IFA_LOCAL])
475 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
476 if (!rta_tb[IFA_ADDRESS])
477 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
478
479 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
480 return 0;
481 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
482 return 0;
483 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
484 return 0;
485 if (filter.label) {
486 SPRINT_BUF(b1);
487 const char *label;
488 if (rta_tb[IFA_LABEL])
489 label = RTA_DATA(rta_tb[IFA_LABEL]);
490 else
491 label = ll_idx_n2a(ifa->ifa_index, b1);
492 if (fnmatch(filter.label, label, 0) != 0)
493 return 0;
494 }
495 if (filter.pfx.family) {
496 if (rta_tb[IFA_LOCAL]) {
497 inet_prefix dst;
498 memset(&dst, 0, sizeof(dst));
499 dst.family = ifa->ifa_family;
500 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
501 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
502 return 0;
503 }
504 }
505
506 if (filter.family && filter.family != ifa->ifa_family)
507 return 0;
508
509 if (filter.flushb) {
510 struct nlmsghdr *fn;
511 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
512 if (flush_update())
513 return -1;
514 }
515 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
516 memcpy(fn, n, n->nlmsg_len);
517 fn->nlmsg_type = RTM_DELADDR;
518 fn->nlmsg_flags = NLM_F_REQUEST;
519 fn->nlmsg_seq = ++rth.seq;
520 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
521 filter.flushed++;
522 if (show_stats < 2)
523 return 0;
524 }
525
526 if (n->nlmsg_type == RTM_DELADDR)
527 fprintf(fp, "Deleted ");
528
529 if (filter.oneline || filter.flushb)
530 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
531 if (ifa->ifa_family == AF_INET)
532 fprintf(fp, " inet ");
533 else if (ifa->ifa_family == AF_INET6)
534 fprintf(fp, " inet6 ");
535 else if (ifa->ifa_family == AF_DECnet)
536 fprintf(fp, " dnet ");
537 else if (ifa->ifa_family == AF_IPX)
538 fprintf(fp, " ipx ");
539 else
540 fprintf(fp, " family %d ", ifa->ifa_family);
541
542 if (rta_tb[IFA_LOCAL]) {
543 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
544 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
545 RTA_DATA(rta_tb[IFA_LOCAL]),
546 abuf, sizeof(abuf)));
547
548 if (rta_tb[IFA_ADDRESS] == NULL ||
549 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]), 4) == 0) {
550 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
551 } else {
552 fprintf(fp, " peer %s/%d ",
553 rt_addr_n2a(ifa->ifa_family,
554 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
555 RTA_DATA(rta_tb[IFA_ADDRESS]),
556 abuf, sizeof(abuf)),
557 ifa->ifa_prefixlen);
558 }
559 }
560
561 if (rta_tb[IFA_BROADCAST]) {
562 fprintf(fp, "brd %s ",
563 rt_addr_n2a(ifa->ifa_family,
564 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
565 RTA_DATA(rta_tb[IFA_BROADCAST]),
566 abuf, sizeof(abuf)));
567 }
568 if (rta_tb[IFA_ANYCAST]) {
569 fprintf(fp, "any %s ",
570 rt_addr_n2a(ifa->ifa_family,
571 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
572 RTA_DATA(rta_tb[IFA_ANYCAST]),
573 abuf, sizeof(abuf)));
574 }
575 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
576 ifa_flags = ifa->ifa_flags;
577 if (ifa->ifa_flags&IFA_F_SECONDARY) {
578 ifa_flags &= ~IFA_F_SECONDARY;
579 if (ifa->ifa_family == AF_INET6)
580 fprintf(fp, "temporary ");
581 else
582 fprintf(fp, "secondary ");
583 }
584 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
585 ifa_flags &= ~IFA_F_TENTATIVE;
586 fprintf(fp, "tentative ");
587 }
588 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
589 ifa_flags &= ~IFA_F_DEPRECATED;
590 deprecated = 1;
591 fprintf(fp, "deprecated ");
592 }
593 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
594 ifa_flags &= ~IFA_F_HOMEADDRESS;
595 fprintf(fp, "home ");
596 }
597 if (ifa->ifa_flags&IFA_F_NODAD) {
598 ifa_flags &= ~IFA_F_NODAD;
599 fprintf(fp, "nodad ");
600 }
601 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
602 fprintf(fp, "dynamic ");
603 } else
604 ifa_flags &= ~IFA_F_PERMANENT;
605 if (ifa->ifa_flags&IFA_F_DADFAILED) {
606 ifa_flags &= ~IFA_F_DADFAILED;
607 fprintf(fp, "dadfailed ");
608 }
609 if (ifa_flags)
610 fprintf(fp, "flags %02x ", ifa_flags);
611 if (rta_tb[IFA_LABEL])
612 fprintf(fp, "%s", (char*)RTA_DATA(rta_tb[IFA_LABEL]));
613 if (rta_tb[IFA_CACHEINFO]) {
614 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
615 fprintf(fp, "%s", _SL_);
616 fprintf(fp, " valid_lft ");
617 if (ci->ifa_valid == INFINITY_LIFE_TIME)
618 fprintf(fp, "forever");
619 else
620 fprintf(fp, "%usec", ci->ifa_valid);
621 fprintf(fp, " preferred_lft ");
622 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
623 fprintf(fp, "forever");
624 else {
625 if (deprecated)
626 fprintf(fp, "%dsec", ci->ifa_prefered);
627 else
628 fprintf(fp, "%usec", ci->ifa_prefered);
629 }
630 }
631 fprintf(fp, "\n");
632 fflush(fp);
633 return 0;
634 }
635
636 int print_addrinfo_primary(const struct sockaddr_nl *who, struct nlmsghdr *n,
637 void *arg)
638 {
639 struct ifaddrmsg *ifa = NLMSG_DATA(n);
640
641 if (ifa->ifa_flags & IFA_F_SECONDARY)
642 return 0;
643
644 return print_addrinfo(who, n, arg);
645 }
646
647 int print_addrinfo_secondary(const struct sockaddr_nl *who, struct nlmsghdr *n,
648 void *arg)
649 {
650 struct ifaddrmsg *ifa = NLMSG_DATA(n);
651
652 if (!(ifa->ifa_flags & IFA_F_SECONDARY))
653 return 0;
654
655 return print_addrinfo(who, n, arg);
656 }
657
658 struct nlmsg_list
659 {
660 struct nlmsg_list *next;
661 struct nlmsghdr h;
662 };
663
664 static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
665 {
666 for ( ;ainfo ; ainfo = ainfo->next) {
667 struct nlmsghdr *n = &ainfo->h;
668 struct ifaddrmsg *ifa = NLMSG_DATA(n);
669
670 if (n->nlmsg_type != RTM_NEWADDR)
671 continue;
672
673 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
674 return -1;
675
676 if (ifa->ifa_index != ifindex ||
677 (filter.family && filter.family != ifa->ifa_family))
678 continue;
679
680 print_addrinfo(NULL, n, fp);
681 }
682 return 0;
683 }
684
685
686 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
687 void *arg)
688 {
689 struct nlmsg_list **linfo = (struct nlmsg_list**)arg;
690 struct nlmsg_list *h;
691 struct nlmsg_list **lp;
692
693 h = malloc(n->nlmsg_len+sizeof(void*));
694 if (h == NULL)
695 return -1;
696
697 memcpy(&h->h, n, n->nlmsg_len);
698 h->next = NULL;
699
700 for (lp = linfo; *lp; lp = &(*lp)->next) /* NOTHING */;
701 *lp = h;
702
703 ll_remember_index(who, n, NULL);
704 return 0;
705 }
706
707 static int ipaddr_list_or_flush(int argc, char **argv, int flush)
708 {
709 struct nlmsg_list *linfo = NULL;
710 struct nlmsg_list *ainfo = NULL;
711 struct nlmsg_list *l, *n;
712 char *filter_dev = NULL;
713 int no_link = 0;
714
715 ipaddr_reset_filter(oneline);
716 filter.showqueue = 1;
717
718 if (filter.family == AF_UNSPEC)
719 filter.family = preferred_family;
720
721 if (flush) {
722 if (argc <= 0) {
723 fprintf(stderr, "Flush requires arguments.\n");
724 return -1;
725 }
726 if (filter.family == AF_PACKET) {
727 fprintf(stderr, "Cannot flush link addresses.\n");
728 return -1;
729 }
730 }
731
732 while (argc > 0) {
733 if (strcmp(*argv, "to") == 0) {
734 NEXT_ARG();
735 get_prefix(&filter.pfx, *argv, filter.family);
736 if (filter.family == AF_UNSPEC)
737 filter.family = filter.pfx.family;
738 } else if (strcmp(*argv, "scope") == 0) {
739 unsigned scope = 0;
740 NEXT_ARG();
741 filter.scopemask = -1;
742 if (rtnl_rtscope_a2n(&scope, *argv)) {
743 if (strcmp(*argv, "all") != 0)
744 invarg("invalid \"scope\"\n", *argv);
745 scope = RT_SCOPE_NOWHERE;
746 filter.scopemask = 0;
747 }
748 filter.scope = scope;
749 } else if (strcmp(*argv, "up") == 0) {
750 filter.up = 1;
751 } else if (strcmp(*argv, "dynamic") == 0) {
752 filter.flags &= ~IFA_F_PERMANENT;
753 filter.flagmask |= IFA_F_PERMANENT;
754 } else if (strcmp(*argv, "permanent") == 0) {
755 filter.flags |= IFA_F_PERMANENT;
756 filter.flagmask |= IFA_F_PERMANENT;
757 } else if (strcmp(*argv, "secondary") == 0 ||
758 strcmp(*argv, "temporary") == 0) {
759 filter.flags |= IFA_F_SECONDARY;
760 filter.flagmask |= IFA_F_SECONDARY;
761 } else if (strcmp(*argv, "primary") == 0) {
762 filter.flags &= ~IFA_F_SECONDARY;
763 filter.flagmask |= IFA_F_SECONDARY;
764 } else if (strcmp(*argv, "tentative") == 0) {
765 filter.flags |= IFA_F_TENTATIVE;
766 filter.flagmask |= IFA_F_TENTATIVE;
767 } else if (strcmp(*argv, "deprecated") == 0) {
768 filter.flags |= IFA_F_DEPRECATED;
769 filter.flagmask |= IFA_F_DEPRECATED;
770 } else if (strcmp(*argv, "home") == 0) {
771 filter.flags |= IFA_F_HOMEADDRESS;
772 filter.flagmask |= IFA_F_HOMEADDRESS;
773 } else if (strcmp(*argv, "nodad") == 0) {
774 filter.flags |= IFA_F_NODAD;
775 filter.flagmask |= IFA_F_NODAD;
776 } else if (strcmp(*argv, "dadfailed") == 0) {
777 filter.flags |= IFA_F_DADFAILED;
778 filter.flagmask |= IFA_F_DADFAILED;
779 } else if (strcmp(*argv, "label") == 0) {
780 NEXT_ARG();
781 filter.label = *argv;
782 } else {
783 if (strcmp(*argv, "dev") == 0) {
784 NEXT_ARG();
785 }
786 if (matches(*argv, "help") == 0)
787 usage();
788 if (filter_dev)
789 duparg2("dev", *argv);
790 filter_dev = *argv;
791 }
792 argv++; argc--;
793 }
794
795 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
796 perror("Cannot send dump request");
797 exit(1);
798 }
799
800 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo, NULL, NULL) < 0) {
801 fprintf(stderr, "Dump terminated\n");
802 exit(1);
803 }
804
805 if (filter_dev) {
806 filter.ifindex = ll_name_to_index(filter_dev);
807 if (filter.ifindex <= 0) {
808 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
809 return -1;
810 }
811 }
812
813 if (flush) {
814 int round = 0;
815 char flushb[4096-512];
816
817 filter.flushb = flushb;
818 filter.flushp = 0;
819 filter.flushe = sizeof(flushb);
820
821 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
822 const struct rtnl_dump_filter_arg a[3] = {
823 {
824 .filter = print_addrinfo_secondary,
825 .arg1 = stdout,
826 .junk = NULL,
827 .arg2 = NULL
828 },
829 {
830 .filter = print_addrinfo_primary,
831 .arg1 = stdout,
832 .junk = NULL,
833 .arg2 = NULL
834 },
835 {
836 .filter = NULL,
837 .arg1 = NULL,
838 .junk = NULL,
839 .arg2 = NULL
840 },
841 };
842 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
843 perror("Cannot send dump request");
844 exit(1);
845 }
846 filter.flushed = 0;
847 if (rtnl_dump_filter_l(&rth, a) < 0) {
848 fprintf(stderr, "Flush terminated\n");
849 exit(1);
850 }
851 if (filter.flushed == 0) {
852 flush_done:
853 if (show_stats) {
854 if (round == 0)
855 printf("Nothing to flush.\n");
856 else
857 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
858 }
859 fflush(stdout);
860 return 0;
861 }
862 round++;
863 if (flush_update() < 0)
864 return 1;
865
866 if (show_stats) {
867 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
868 fflush(stdout);
869 }
870
871 /* If we are flushing, and specifying primary, then we
872 * want to flush only a single round. Otherwise, we'll
873 * start flushing secondaries that were promoted to
874 * primaries.
875 */
876 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
877 goto flush_done;
878 }
879 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
880 fflush(stderr);
881 return 1;
882 }
883
884 if (filter.family != AF_PACKET) {
885 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
886 perror("Cannot send dump request");
887 exit(1);
888 }
889
890 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo, NULL, NULL) < 0) {
891 fprintf(stderr, "Dump terminated\n");
892 exit(1);
893 }
894 }
895
896
897 if (filter.family && filter.family != AF_PACKET) {
898 struct nlmsg_list **lp;
899 lp=&linfo;
900
901 if (filter.oneline)
902 no_link = 1;
903
904 while ((l=*lp)!=NULL) {
905 int ok = 0;
906 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
907 struct nlmsg_list *a;
908
909 for (a=ainfo; a; a=a->next) {
910 struct nlmsghdr *n = &a->h;
911 struct ifaddrmsg *ifa = NLMSG_DATA(n);
912
913 if (ifa->ifa_index != ifi->ifi_index ||
914 (filter.family && filter.family != ifa->ifa_family))
915 continue;
916 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
917 continue;
918 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
919 continue;
920 if (filter.pfx.family || filter.label) {
921 struct rtattr *tb[IFA_MAX+1];
922 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
923 if (!tb[IFA_LOCAL])
924 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
925
926 if (filter.pfx.family && tb[IFA_LOCAL]) {
927 inet_prefix dst;
928 memset(&dst, 0, sizeof(dst));
929 dst.family = ifa->ifa_family;
930 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
931 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
932 continue;
933 }
934 if (filter.label) {
935 SPRINT_BUF(b1);
936 const char *label;
937 if (tb[IFA_LABEL])
938 label = RTA_DATA(tb[IFA_LABEL]);
939 else
940 label = ll_idx_n2a(ifa->ifa_index, b1);
941 if (fnmatch(filter.label, label, 0) != 0)
942 continue;
943 }
944 }
945
946 ok = 1;
947 break;
948 }
949 if (!ok)
950 *lp = l->next;
951 else
952 lp = &l->next;
953 }
954 }
955
956 for (l=linfo; l; l = n) {
957 n = l->next;
958 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
959 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
960 if (filter.family != AF_PACKET)
961 print_selected_addrinfo(ifi->ifi_index, ainfo, stdout);
962 }
963 fflush(stdout);
964 free(l);
965 }
966
967 return 0;
968 }
969
970 int ipaddr_list_link(int argc, char **argv)
971 {
972 preferred_family = AF_PACKET;
973 do_link = 1;
974 return ipaddr_list_or_flush(argc, argv, 0);
975 }
976
977 void ipaddr_reset_filter(int oneline)
978 {
979 memset(&filter, 0, sizeof(filter));
980 filter.oneline = oneline;
981 }
982
983 static int default_scope(inet_prefix *lcl)
984 {
985 if (lcl->family == AF_INET) {
986 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
987 return RT_SCOPE_HOST;
988 }
989 return 0;
990 }
991
992 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
993 {
994 struct {
995 struct nlmsghdr n;
996 struct ifaddrmsg ifa;
997 char buf[256];
998 } req;
999 char *d = NULL;
1000 char *l = NULL;
1001 char *lcl_arg = NULL;
1002 char *valid_lftp = NULL;
1003 char *preferred_lftp = NULL;
1004 inet_prefix lcl;
1005 inet_prefix peer;
1006 int local_len = 0;
1007 int peer_len = 0;
1008 int brd_len = 0;
1009 int any_len = 0;
1010 int scoped = 0;
1011 __u32 preferred_lft = INFINITY_LIFE_TIME;
1012 __u32 valid_lft = INFINITY_LIFE_TIME;
1013 struct ifa_cacheinfo cinfo;
1014
1015 memset(&req, 0, sizeof(req));
1016
1017 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
1018 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
1019 req.n.nlmsg_type = cmd;
1020 req.ifa.ifa_family = preferred_family;
1021
1022 while (argc > 0) {
1023 if (strcmp(*argv, "peer") == 0 ||
1024 strcmp(*argv, "remote") == 0) {
1025 NEXT_ARG();
1026
1027 if (peer_len)
1028 duparg("peer", *argv);
1029 get_prefix(&peer, *argv, req.ifa.ifa_family);
1030 peer_len = peer.bytelen;
1031 if (req.ifa.ifa_family == AF_UNSPEC)
1032 req.ifa.ifa_family = peer.family;
1033 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1034 req.ifa.ifa_prefixlen = peer.bitlen;
1035 } else if (matches(*argv, "broadcast") == 0 ||
1036 strcmp(*argv, "brd") == 0) {
1037 inet_prefix addr;
1038 NEXT_ARG();
1039 if (brd_len)
1040 duparg("broadcast", *argv);
1041 if (strcmp(*argv, "+") == 0)
1042 brd_len = -1;
1043 else if (strcmp(*argv, "-") == 0)
1044 brd_len = -2;
1045 else {
1046 get_addr(&addr, *argv, req.ifa.ifa_family);
1047 if (req.ifa.ifa_family == AF_UNSPEC)
1048 req.ifa.ifa_family = addr.family;
1049 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1050 brd_len = addr.bytelen;
1051 }
1052 } else if (strcmp(*argv, "anycast") == 0) {
1053 inet_prefix addr;
1054 NEXT_ARG();
1055 if (any_len)
1056 duparg("anycast", *argv);
1057 get_addr(&addr, *argv, req.ifa.ifa_family);
1058 if (req.ifa.ifa_family == AF_UNSPEC)
1059 req.ifa.ifa_family = addr.family;
1060 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1061 any_len = addr.bytelen;
1062 } else if (strcmp(*argv, "scope") == 0) {
1063 unsigned scope = 0;
1064 NEXT_ARG();
1065 if (rtnl_rtscope_a2n(&scope, *argv))
1066 invarg(*argv, "invalid scope value.");
1067 req.ifa.ifa_scope = scope;
1068 scoped = 1;
1069 } else if (strcmp(*argv, "dev") == 0) {
1070 NEXT_ARG();
1071 d = *argv;
1072 } else if (strcmp(*argv, "label") == 0) {
1073 NEXT_ARG();
1074 l = *argv;
1075 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1076 } else if (matches(*argv, "valid_lft") == 0) {
1077 if (valid_lftp)
1078 duparg("valid_lft", *argv);
1079 NEXT_ARG();
1080 valid_lftp = *argv;
1081 if (set_lifetime(&valid_lft, *argv))
1082 invarg("valid_lft value", *argv);
1083 } else if (matches(*argv, "preferred_lft") == 0) {
1084 if (preferred_lftp)
1085 duparg("preferred_lft", *argv);
1086 NEXT_ARG();
1087 preferred_lftp = *argv;
1088 if (set_lifetime(&preferred_lft, *argv))
1089 invarg("preferred_lft value", *argv);
1090 } else if (strcmp(*argv, "home") == 0) {
1091 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1092 } else if (strcmp(*argv, "nodad") == 0) {
1093 req.ifa.ifa_flags |= IFA_F_NODAD;
1094 } else {
1095 if (strcmp(*argv, "local") == 0) {
1096 NEXT_ARG();
1097 }
1098 if (matches(*argv, "help") == 0)
1099 usage();
1100 if (local_len)
1101 duparg2("local", *argv);
1102 lcl_arg = *argv;
1103 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1104 if (req.ifa.ifa_family == AF_UNSPEC)
1105 req.ifa.ifa_family = lcl.family;
1106 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1107 local_len = lcl.bytelen;
1108 }
1109 argc--; argv++;
1110 }
1111 if (d == NULL) {
1112 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1113 return -1;
1114 }
1115 if (l && matches(d, l) != 0) {
1116 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1117 return -1;
1118 }
1119
1120 if (peer_len == 0 && local_len) {
1121 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1122 fprintf(stderr,
1123 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1124 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1125 " This special behaviour is likely to disappear in further releases,\n" \
1126 " fix your scripts!\n", lcl_arg, local_len*8);
1127 } else {
1128 peer = lcl;
1129 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1130 }
1131 }
1132 if (req.ifa.ifa_prefixlen == 0)
1133 req.ifa.ifa_prefixlen = lcl.bitlen;
1134
1135 if (brd_len < 0 && cmd != RTM_DELADDR) {
1136 inet_prefix brd;
1137 int i;
1138 if (req.ifa.ifa_family != AF_INET) {
1139 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1140 return -1;
1141 }
1142 brd = peer;
1143 if (brd.bitlen <= 30) {
1144 for (i=31; i>=brd.bitlen; i--) {
1145 if (brd_len == -1)
1146 brd.data[0] |= htonl(1<<(31-i));
1147 else
1148 brd.data[0] &= ~htonl(1<<(31-i));
1149 }
1150 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1151 brd_len = brd.bytelen;
1152 }
1153 }
1154 if (!scoped && cmd != RTM_DELADDR)
1155 req.ifa.ifa_scope = default_scope(&lcl);
1156
1157 ll_init_map(&rth);
1158
1159 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1160 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1161 return -1;
1162 }
1163
1164 if (valid_lftp || preferred_lftp) {
1165 if (!valid_lft) {
1166 fprintf(stderr, "valid_lft is zero\n");
1167 return -1;
1168 }
1169 if (valid_lft < preferred_lft) {
1170 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1171 return -1;
1172 }
1173
1174 memset(&cinfo, 0, sizeof(cinfo));
1175 cinfo.ifa_prefered = preferred_lft;
1176 cinfo.ifa_valid = valid_lft;
1177 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1178 sizeof(cinfo));
1179 }
1180
1181 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
1182 return -2;
1183
1184 return 0;
1185 }
1186
1187 int do_ipaddr(int argc, char **argv)
1188 {
1189 if (argc < 1)
1190 return ipaddr_list_or_flush(0, NULL, 0);
1191 if (matches(*argv, "add") == 0)
1192 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1193 if (matches(*argv, "change") == 0 ||
1194 strcmp(*argv, "chg") == 0)
1195 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1196 if (matches(*argv, "replace") == 0)
1197 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
1198 if (matches(*argv, "delete") == 0)
1199 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
1200 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1201 || matches(*argv, "lst") == 0)
1202 return ipaddr_list_or_flush(argc-1, argv+1, 0);
1203 if (matches(*argv, "flush") == 0)
1204 return ipaddr_list_or_flush(argc-1, argv+1, 1);
1205 if (matches(*argv, "help") == 0)
1206 usage();
1207 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);
1208 exit(-1);
1209 }
1210
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