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ip: speedup ip link
[mirror_iproute2.git] / ip / ipaddress.c
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 <inttypes.h>
18 #include <fcntl.h>
19 #include <sys/ioctl.h>
20 #include <sys/socket.h>
21 #include <sys/ioctl.h>
22 #include <sys/errno.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
25 #include <string.h>
26 #include <fnmatch.h>
27
28 #include <linux/netdevice.h>
29 #include <linux/if_arp.h>
30 #include <linux/sockios.h>
31
32 #include "rt_names.h"
33 #include "utils.h"
34 #include "ll_map.h"
35 #include "ip_common.h"
36
37
38 static struct
39 {
40 int ifindex;
41 int family;
42 int oneline;
43 int showqueue;
44 inet_prefix pfx;
45 int scope, scopemask;
46 int flags, flagmask;
47 int up;
48 char *label;
49 int flushed;
50 char *flushb;
51 int flushp;
52 int flushe;
53 int group;
54 } filter;
55
56 static int do_link;
57
58 static void usage(void) __attribute__((noreturn));
59
60 static void usage(void)
61 {
62 if (do_link) {
63 iplink_usage();
64 }
65 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
66 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
67 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
68 fprintf(stderr, " ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
69 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\n");
70 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
71 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
72 fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
73 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
74 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
75 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
76 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
77 fprintf(stderr, " CONFFLAG-LIST ]\n");
78 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
79 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
80 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
81 fprintf(stderr, "LFT := forever | SECONDS\n");
82
83 exit(-1);
84 }
85
86 void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
87 {
88 fprintf(fp, "<");
89 if (flags & IFF_UP && !(flags & IFF_RUNNING))
90 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
91 flags &= ~IFF_RUNNING;
92 #define _PF(f) if (flags&IFF_##f) { \
93 flags &= ~IFF_##f ; \
94 fprintf(fp, #f "%s", flags ? "," : ""); }
95 _PF(LOOPBACK);
96 _PF(BROADCAST);
97 _PF(POINTOPOINT);
98 _PF(MULTICAST);
99 _PF(NOARP);
100 _PF(ALLMULTI);
101 _PF(PROMISC);
102 _PF(MASTER);
103 _PF(SLAVE);
104 _PF(DEBUG);
105 _PF(DYNAMIC);
106 _PF(AUTOMEDIA);
107 _PF(PORTSEL);
108 _PF(NOTRAILERS);
109 _PF(UP);
110 _PF(LOWER_UP);
111 _PF(DORMANT);
112 _PF(ECHO);
113 #undef _PF
114 if (flags)
115 fprintf(fp, "%x", flags);
116 if (mdown)
117 fprintf(fp, ",M-DOWN");
118 fprintf(fp, "> ");
119 }
120
121 static const char *oper_states[] = {
122 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
123 "TESTING", "DORMANT", "UP"
124 };
125
126 static void print_operstate(FILE *f, __u8 state)
127 {
128 if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
129 fprintf(f, "state %#x ", state);
130 else
131 fprintf(f, "state %s ", oper_states[state]);
132 }
133
134 int get_operstate(const char *name)
135 {
136 int i;
137
138 for (i = 0; i < sizeof(oper_states)/sizeof(oper_states[0]); i++)
139 if (strcasecmp(name, oper_states[i]) == 0)
140 return i;
141 return -1;
142 }
143
144 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
145 {
146 int qlen;
147
148 if (tb[IFLA_TXQLEN])
149 qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
150 else {
151 struct ifreq ifr;
152 int s = socket(AF_INET, SOCK_STREAM, 0);
153
154 if (s < 0)
155 return;
156
157 memset(&ifr, 0, sizeof(ifr));
158 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
159 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
160 fprintf(f, "ioctl(SIOCGIFXQLEN) failed: %s\n", strerror(errno));
161 close(s);
162 return;
163 }
164 close(s);
165 qlen = ifr.ifr_qlen;
166 }
167 if (qlen)
168 fprintf(f, "qlen %d", qlen);
169 }
170
171 static const char *link_modes[] = {
172 "DEFAULT", "DORMANT"
173 };
174
175 static void print_linkmode(FILE *f, struct rtattr *tb)
176 {
177 unsigned int mode = rta_getattr_u8(tb);
178
179 if (mode >= sizeof(link_modes) / sizeof(link_modes[0]))
180 fprintf(f, "mode %d ", mode);
181 else
182 fprintf(f, "mode %s ", link_modes[mode]);
183 }
184
185 static void print_linktype(FILE *fp, struct rtattr *tb)
186 {
187 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
188 struct link_util *lu;
189 char *kind;
190
191 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
192
193 if (!linkinfo[IFLA_INFO_KIND])
194 return;
195 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
196
197 fprintf(fp, "%s", _SL_);
198 fprintf(fp, " %s ", kind);
199
200 lu = get_link_kind(kind);
201 if (!lu || !lu->print_opt)
202 return;
203
204 if (1) {
205 struct rtattr *attr[lu->maxattr+1], **data = NULL;
206
207 if (linkinfo[IFLA_INFO_DATA]) {
208 parse_rtattr_nested(attr, lu->maxattr,
209 linkinfo[IFLA_INFO_DATA]);
210 data = attr;
211 }
212 lu->print_opt(lu, fp, data);
213
214 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
215 lu->print_xstats)
216 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
217 }
218 }
219
220 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
221 {
222 struct ifla_vf_mac *vf_mac;
223 struct ifla_vf_vlan *vf_vlan;
224 struct ifla_vf_tx_rate *vf_tx_rate;
225 struct ifla_vf_spoofchk *vf_spoofchk;
226 struct rtattr *vf[IFLA_VF_MAX+1];
227 struct rtattr *tmp;
228 SPRINT_BUF(b1);
229
230 if (vfinfo->rta_type != IFLA_VF_INFO) {
231 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
232 return;
233 }
234
235 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
236
237 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
238 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
239 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
240
241 /* Check if the spoof checking vf info type is supported by
242 * this kernel.
243 */
244 tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
245 vf[IFLA_VF_TX_RATE]->rta_len);
246
247 if (tmp->rta_type != IFLA_VF_SPOOFCHK)
248 vf_spoofchk = NULL;
249 else
250 vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
251
252 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
253 ll_addr_n2a((unsigned char *)&vf_mac->mac,
254 ETH_ALEN, 0, b1, sizeof(b1)));
255 if (vf_vlan->vlan)
256 fprintf(fp, ", vlan %d", vf_vlan->vlan);
257 if (vf_vlan->qos)
258 fprintf(fp, ", qos %d", vf_vlan->qos);
259 if (vf_tx_rate->rate)
260 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
261 if (vf_spoofchk && vf_spoofchk->setting != -1) {
262 if (vf_spoofchk->setting)
263 fprintf(fp, ", spoof checking on");
264 else
265 fprintf(fp, ", spoof checking off");
266 }
267 }
268
269 static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s) {
270 fprintf(fp, "%s", _SL_);
271 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
272 s->rx_compressed ? "compressed" : "", _SL_);
273 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
274 (uint64_t)s->rx_bytes,
275 (uint64_t)s->rx_packets,
276 (uint64_t)s->rx_errors,
277 (uint64_t)s->rx_dropped,
278 (uint64_t)s->rx_over_errors,
279 (uint64_t)s->multicast);
280 if (s->rx_compressed)
281 fprintf(fp, " %-7"PRIu64"",
282 (uint64_t)s->rx_compressed);
283 if (show_stats > 1) {
284 fprintf(fp, "%s", _SL_);
285 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
286 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
287 (uint64_t)s->rx_length_errors,
288 (uint64_t)s->rx_crc_errors,
289 (uint64_t)s->rx_frame_errors,
290 (uint64_t)s->rx_fifo_errors,
291 (uint64_t)s->rx_missed_errors);
292 }
293 fprintf(fp, "%s", _SL_);
294 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
295 (uint64_t)s->tx_compressed ? "compressed" : "", _SL_);
296 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
297 (uint64_t)s->tx_bytes,
298 (uint64_t)s->tx_packets,
299 (uint64_t)s->tx_errors,
300 (uint64_t)s->tx_dropped,
301 (uint64_t)s->tx_carrier_errors,
302 (uint64_t)s->collisions);
303 if (s->tx_compressed)
304 fprintf(fp, " %-7"PRIu64"",
305 (uint64_t)s->tx_compressed);
306 if (show_stats > 1) {
307 fprintf(fp, "%s", _SL_);
308 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
309 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
310 (uint64_t)s->tx_aborted_errors,
311 (uint64_t)s->tx_fifo_errors,
312 (uint64_t)s->tx_window_errors,
313 (uint64_t)s->tx_heartbeat_errors);
314 }
315 }
316
317 static void print_link_stats(FILE *fp, const struct rtnl_link_stats *s)
318 {
319 fprintf(fp, "%s", _SL_);
320 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
321 s->rx_compressed ? "compressed" : "", _SL_);
322 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
323 s->rx_bytes, s->rx_packets, s->rx_errors,
324 s->rx_dropped, s->rx_over_errors,
325 s->multicast
326 );
327 if (s->rx_compressed)
328 fprintf(fp, " %-7u", s->rx_compressed);
329 if (show_stats > 1) {
330 fprintf(fp, "%s", _SL_);
331 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
332 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
333 s->rx_length_errors,
334 s->rx_crc_errors,
335 s->rx_frame_errors,
336 s->rx_fifo_errors,
337 s->rx_missed_errors
338 );
339 }
340 fprintf(fp, "%s", _SL_);
341 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
342 s->tx_compressed ? "compressed" : "", _SL_);
343 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
344 s->tx_bytes, s->tx_packets, s->tx_errors,
345 s->tx_dropped, s->tx_carrier_errors, s->collisions);
346 if (s->tx_compressed)
347 fprintf(fp, " %-7u", s->tx_compressed);
348 if (show_stats > 1) {
349 fprintf(fp, "%s", _SL_);
350 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
351 fprintf(fp, " %-7u %-7u %-7u %-7u",
352 s->tx_aborted_errors,
353 s->tx_fifo_errors,
354 s->tx_window_errors,
355 s->tx_heartbeat_errors
356 );
357 }
358 }
359
360 int print_linkinfo(const struct sockaddr_nl *who,
361 struct nlmsghdr *n, void *arg)
362 {
363 FILE *fp = (FILE*)arg;
364 struct ifinfomsg *ifi = NLMSG_DATA(n);
365 struct rtattr * tb[IFLA_MAX+1];
366 int len = n->nlmsg_len;
367 unsigned m_flag = 0;
368
369 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
370 return 0;
371
372 len -= NLMSG_LENGTH(sizeof(*ifi));
373 if (len < 0)
374 return -1;
375
376 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
377 return 0;
378 if (filter.up && !(ifi->ifi_flags&IFF_UP))
379 return 0;
380
381 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
382 if (tb[IFLA_IFNAME] == NULL) {
383 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
384 }
385 if (filter.label &&
386 (!filter.family || filter.family == AF_PACKET) &&
387 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
388 return 0;
389
390 if (tb[IFLA_GROUP]) {
391 int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
392 if (group != filter.group)
393 return -1;
394 }
395
396 if (n->nlmsg_type == RTM_DELLINK)
397 fprintf(fp, "Deleted ");
398
399 fprintf(fp, "%d: %s", ifi->ifi_index,
400 tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
401
402 if (tb[IFLA_LINK]) {
403 SPRINT_BUF(b1);
404 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
405 if (iflink == 0)
406 fprintf(fp, "@NONE: ");
407 else {
408 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
409 m_flag = ll_index_to_flags(iflink);
410 m_flag = !(m_flag & IFF_UP);
411 }
412 } else {
413 fprintf(fp, ": ");
414 }
415 print_link_flags(fp, ifi->ifi_flags, m_flag);
416
417 if (tb[IFLA_MTU])
418 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
419 if (tb[IFLA_QDISC])
420 fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
421 if (tb[IFLA_MASTER]) {
422 SPRINT_BUF(b1);
423 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
424 }
425
426 if (tb[IFLA_OPERSTATE])
427 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
428
429 if (do_link && tb[IFLA_LINKMODE])
430 print_linkmode(fp, tb[IFLA_LINKMODE]);
431
432 if (filter.showqueue)
433 print_queuelen(fp, tb);
434
435 if (!filter.family || filter.family == AF_PACKET) {
436 SPRINT_BUF(b1);
437 fprintf(fp, "%s", _SL_);
438 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
439
440 if (tb[IFLA_ADDRESS]) {
441 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
442 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
443 ifi->ifi_type,
444 b1, sizeof(b1)));
445 }
446 if (tb[IFLA_BROADCAST]) {
447 if (ifi->ifi_flags&IFF_POINTOPOINT)
448 fprintf(fp, " peer ");
449 else
450 fprintf(fp, " brd ");
451 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
452 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
453 ifi->ifi_type,
454 b1, sizeof(b1)));
455 }
456 }
457
458 if (do_link && tb[IFLA_LINKINFO] && show_details)
459 print_linktype(fp, tb[IFLA_LINKINFO]);
460
461 if (do_link && tb[IFLA_IFALIAS])
462 fprintf(fp,"\n alias %s",
463 rta_getattr_str(tb[IFLA_IFALIAS]));
464
465 if (do_link && show_stats) {
466 if (tb[IFLA_STATS64])
467 print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
468 else if (tb[IFLA_STATS])
469 print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
470 }
471
472 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
473 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
474 int rem = RTA_PAYLOAD(vflist);
475 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
476 print_vfinfo(fp, i);
477 }
478
479 fprintf(fp, "\n");
480 fflush(fp);
481 return 0;
482 }
483
484 static int flush_update(void)
485 {
486 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
487 perror("Failed to send flush request");
488 return -1;
489 }
490 filter.flushp = 0;
491 return 0;
492 }
493
494 static int set_lifetime(unsigned int *lifetime, char *argv)
495 {
496 if (strcmp(argv, "forever") == 0)
497 *lifetime = INFINITY_LIFE_TIME;
498 else if (get_u32(lifetime, argv, 0))
499 return -1;
500
501 return 0;
502 }
503
504 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
505 void *arg)
506 {
507 FILE *fp = (FILE*)arg;
508 struct ifaddrmsg *ifa = NLMSG_DATA(n);
509 int len = n->nlmsg_len;
510 int deprecated = 0;
511 /* Use local copy of ifa_flags to not interfere with filtering code */
512 unsigned int ifa_flags;
513 struct rtattr * rta_tb[IFA_MAX+1];
514 char abuf[256];
515 SPRINT_BUF(b1);
516
517 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
518 return 0;
519 len -= NLMSG_LENGTH(sizeof(*ifa));
520 if (len < 0) {
521 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
522 return -1;
523 }
524
525 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
526 return 0;
527
528 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
529
530 if (!rta_tb[IFA_LOCAL])
531 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
532 if (!rta_tb[IFA_ADDRESS])
533 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
534
535 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
536 return 0;
537 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
538 return 0;
539 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
540 return 0;
541 if (filter.label) {
542 SPRINT_BUF(b1);
543 const char *label;
544 if (rta_tb[IFA_LABEL])
545 label = RTA_DATA(rta_tb[IFA_LABEL]);
546 else
547 label = ll_idx_n2a(ifa->ifa_index, b1);
548 if (fnmatch(filter.label, label, 0) != 0)
549 return 0;
550 }
551 if (filter.pfx.family) {
552 if (rta_tb[IFA_LOCAL]) {
553 inet_prefix dst;
554 memset(&dst, 0, sizeof(dst));
555 dst.family = ifa->ifa_family;
556 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
557 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
558 return 0;
559 }
560 }
561
562 if (filter.family && filter.family != ifa->ifa_family)
563 return 0;
564
565 if (filter.flushb) {
566 struct nlmsghdr *fn;
567 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
568 if (flush_update())
569 return -1;
570 }
571 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
572 memcpy(fn, n, n->nlmsg_len);
573 fn->nlmsg_type = RTM_DELADDR;
574 fn->nlmsg_flags = NLM_F_REQUEST;
575 fn->nlmsg_seq = ++rth.seq;
576 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
577 filter.flushed++;
578 if (show_stats < 2)
579 return 0;
580 }
581
582 if (n->nlmsg_type == RTM_DELADDR)
583 fprintf(fp, "Deleted ");
584
585 if (filter.oneline || filter.flushb)
586 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
587 if (ifa->ifa_family == AF_INET)
588 fprintf(fp, " inet ");
589 else if (ifa->ifa_family == AF_INET6)
590 fprintf(fp, " inet6 ");
591 else if (ifa->ifa_family == AF_DECnet)
592 fprintf(fp, " dnet ");
593 else if (ifa->ifa_family == AF_IPX)
594 fprintf(fp, " ipx ");
595 else
596 fprintf(fp, " family %d ", ifa->ifa_family);
597
598 if (rta_tb[IFA_LOCAL]) {
599 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
600 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
601 RTA_DATA(rta_tb[IFA_LOCAL]),
602 abuf, sizeof(abuf)));
603
604 if (rta_tb[IFA_ADDRESS] == NULL ||
605 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]), 4) == 0) {
606 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
607 } else {
608 fprintf(fp, " peer %s/%d ",
609 rt_addr_n2a(ifa->ifa_family,
610 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
611 RTA_DATA(rta_tb[IFA_ADDRESS]),
612 abuf, sizeof(abuf)),
613 ifa->ifa_prefixlen);
614 }
615 }
616
617 if (rta_tb[IFA_BROADCAST]) {
618 fprintf(fp, "brd %s ",
619 rt_addr_n2a(ifa->ifa_family,
620 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
621 RTA_DATA(rta_tb[IFA_BROADCAST]),
622 abuf, sizeof(abuf)));
623 }
624 if (rta_tb[IFA_ANYCAST]) {
625 fprintf(fp, "any %s ",
626 rt_addr_n2a(ifa->ifa_family,
627 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
628 RTA_DATA(rta_tb[IFA_ANYCAST]),
629 abuf, sizeof(abuf)));
630 }
631 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
632 ifa_flags = ifa->ifa_flags;
633 if (ifa->ifa_flags&IFA_F_SECONDARY) {
634 ifa_flags &= ~IFA_F_SECONDARY;
635 if (ifa->ifa_family == AF_INET6)
636 fprintf(fp, "temporary ");
637 else
638 fprintf(fp, "secondary ");
639 }
640 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
641 ifa_flags &= ~IFA_F_TENTATIVE;
642 fprintf(fp, "tentative ");
643 }
644 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
645 ifa_flags &= ~IFA_F_DEPRECATED;
646 deprecated = 1;
647 fprintf(fp, "deprecated ");
648 }
649 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
650 ifa_flags &= ~IFA_F_HOMEADDRESS;
651 fprintf(fp, "home ");
652 }
653 if (ifa->ifa_flags&IFA_F_NODAD) {
654 ifa_flags &= ~IFA_F_NODAD;
655 fprintf(fp, "nodad ");
656 }
657 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
658 fprintf(fp, "dynamic ");
659 } else
660 ifa_flags &= ~IFA_F_PERMANENT;
661 if (ifa->ifa_flags&IFA_F_DADFAILED) {
662 ifa_flags &= ~IFA_F_DADFAILED;
663 fprintf(fp, "dadfailed ");
664 }
665 if (ifa_flags)
666 fprintf(fp, "flags %02x ", ifa_flags);
667 if (rta_tb[IFA_LABEL])
668 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
669 if (rta_tb[IFA_CACHEINFO]) {
670 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
671 fprintf(fp, "%s", _SL_);
672 fprintf(fp, " valid_lft ");
673 if (ci->ifa_valid == INFINITY_LIFE_TIME)
674 fprintf(fp, "forever");
675 else
676 fprintf(fp, "%usec", ci->ifa_valid);
677 fprintf(fp, " preferred_lft ");
678 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
679 fprintf(fp, "forever");
680 else {
681 if (deprecated)
682 fprintf(fp, "%dsec", ci->ifa_prefered);
683 else
684 fprintf(fp, "%usec", ci->ifa_prefered);
685 }
686 }
687 fprintf(fp, "\n");
688 fflush(fp);
689 return 0;
690 }
691
692 int print_addrinfo_primary(const struct sockaddr_nl *who, struct nlmsghdr *n,
693 void *arg)
694 {
695 struct ifaddrmsg *ifa = NLMSG_DATA(n);
696
697 if (ifa->ifa_flags & IFA_F_SECONDARY)
698 return 0;
699
700 return print_addrinfo(who, n, arg);
701 }
702
703 int print_addrinfo_secondary(const struct sockaddr_nl *who, struct nlmsghdr *n,
704 void *arg)
705 {
706 struct ifaddrmsg *ifa = NLMSG_DATA(n);
707
708 if (!(ifa->ifa_flags & IFA_F_SECONDARY))
709 return 0;
710
711 return print_addrinfo(who, n, arg);
712 }
713
714 struct nlmsg_list
715 {
716 struct nlmsg_list *next;
717 struct nlmsghdr h;
718 };
719
720 struct nlmsg_chain
721 {
722 struct nlmsg_list *head;
723 struct nlmsg_list *tail;
724 };
725
726 static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
727 {
728 for ( ;ainfo ; ainfo = ainfo->next) {
729 struct nlmsghdr *n = &ainfo->h;
730 struct ifaddrmsg *ifa = NLMSG_DATA(n);
731
732 if (n->nlmsg_type != RTM_NEWADDR)
733 continue;
734
735 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
736 return -1;
737
738 if (ifa->ifa_index != ifindex ||
739 (filter.family && filter.family != ifa->ifa_family))
740 continue;
741
742 print_addrinfo(NULL, n, fp);
743 }
744 return 0;
745 }
746
747
748 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
749 void *arg)
750 {
751 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
752 struct nlmsg_list *h;
753
754 h = malloc(n->nlmsg_len+sizeof(void*));
755 if (h == NULL)
756 return -1;
757
758 memcpy(&h->h, n, n->nlmsg_len);
759 h->next = NULL;
760
761 if (lchain->tail)
762 lchain->tail->next = h;
763 else
764 lchain->head = h;
765 lchain->tail = h;
766
767 ll_remember_index(who, n, NULL);
768 return 0;
769 }
770
771 static int ipaddr_list_or_flush(int argc, char **argv, int flush)
772 {
773 struct nlmsg_chain linfo = { NULL, NULL};
774 struct nlmsg_chain ainfo = { NULL, NULL};
775 struct nlmsg_list *l, *n;
776 char *filter_dev = NULL;
777 int no_link = 0;
778
779 ipaddr_reset_filter(oneline);
780 filter.showqueue = 1;
781
782 if (filter.family == AF_UNSPEC)
783 filter.family = preferred_family;
784
785 filter.group = INIT_NETDEV_GROUP;
786
787 if (flush) {
788 if (argc <= 0) {
789 fprintf(stderr, "Flush requires arguments.\n");
790
791 return -1;
792 }
793 if (filter.family == AF_PACKET) {
794 fprintf(stderr, "Cannot flush link addresses.\n");
795 return -1;
796 }
797 }
798
799 while (argc > 0) {
800 if (strcmp(*argv, "to") == 0) {
801 NEXT_ARG();
802 get_prefix(&filter.pfx, *argv, filter.family);
803 if (filter.family == AF_UNSPEC)
804 filter.family = filter.pfx.family;
805 } else if (strcmp(*argv, "scope") == 0) {
806 unsigned scope = 0;
807 NEXT_ARG();
808 filter.scopemask = -1;
809 if (rtnl_rtscope_a2n(&scope, *argv)) {
810 if (strcmp(*argv, "all") != 0)
811 invarg("invalid \"scope\"\n", *argv);
812 scope = RT_SCOPE_NOWHERE;
813 filter.scopemask = 0;
814 }
815 filter.scope = scope;
816 } else if (strcmp(*argv, "up") == 0) {
817 filter.up = 1;
818 } else if (strcmp(*argv, "dynamic") == 0) {
819 filter.flags &= ~IFA_F_PERMANENT;
820 filter.flagmask |= IFA_F_PERMANENT;
821 } else if (strcmp(*argv, "permanent") == 0) {
822 filter.flags |= IFA_F_PERMANENT;
823 filter.flagmask |= IFA_F_PERMANENT;
824 } else if (strcmp(*argv, "secondary") == 0 ||
825 strcmp(*argv, "temporary") == 0) {
826 filter.flags |= IFA_F_SECONDARY;
827 filter.flagmask |= IFA_F_SECONDARY;
828 } else if (strcmp(*argv, "primary") == 0) {
829 filter.flags &= ~IFA_F_SECONDARY;
830 filter.flagmask |= IFA_F_SECONDARY;
831 } else if (strcmp(*argv, "tentative") == 0) {
832 filter.flags |= IFA_F_TENTATIVE;
833 filter.flagmask |= IFA_F_TENTATIVE;
834 } else if (strcmp(*argv, "deprecated") == 0) {
835 filter.flags |= IFA_F_DEPRECATED;
836 filter.flagmask |= IFA_F_DEPRECATED;
837 } else if (strcmp(*argv, "home") == 0) {
838 filter.flags |= IFA_F_HOMEADDRESS;
839 filter.flagmask |= IFA_F_HOMEADDRESS;
840 } else if (strcmp(*argv, "nodad") == 0) {
841 filter.flags |= IFA_F_NODAD;
842 filter.flagmask |= IFA_F_NODAD;
843 } else if (strcmp(*argv, "dadfailed") == 0) {
844 filter.flags |= IFA_F_DADFAILED;
845 filter.flagmask |= IFA_F_DADFAILED;
846 } else if (strcmp(*argv, "label") == 0) {
847 NEXT_ARG();
848 filter.label = *argv;
849 } else if (strcmp(*argv, "group") == 0) {
850 NEXT_ARG();
851 if (rtnl_group_a2n(&filter.group, *argv))
852 invarg("Invalid \"group\" value\n", *argv);
853 } else {
854 if (strcmp(*argv, "dev") == 0) {
855 NEXT_ARG();
856 }
857 if (matches(*argv, "help") == 0)
858 usage();
859 if (filter_dev)
860 duparg2("dev", *argv);
861 filter_dev = *argv;
862 }
863 argv++; argc--;
864 }
865
866 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
867 perror("Cannot send dump request");
868 exit(1);
869 }
870
871 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
872 fprintf(stderr, "Dump terminated\n");
873 exit(1);
874 }
875
876 if (filter_dev) {
877 filter.ifindex = ll_name_to_index(filter_dev);
878 if (filter.ifindex <= 0) {
879 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
880 return -1;
881 }
882 }
883
884 if (flush) {
885 int round = 0;
886 char flushb[4096-512];
887
888 filter.flushb = flushb;
889 filter.flushp = 0;
890 filter.flushe = sizeof(flushb);
891
892 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
893 const struct rtnl_dump_filter_arg a[3] = {
894 {
895 .filter = print_addrinfo_secondary,
896 .arg1 = stdout,
897 },
898 {
899 .filter = print_addrinfo_primary,
900 .arg1 = stdout,
901 },
902 {
903 .filter = NULL,
904 .arg1 = NULL,
905 },
906 };
907 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
908 perror("Cannot send dump request");
909 exit(1);
910 }
911 filter.flushed = 0;
912 if (rtnl_dump_filter_l(&rth, a) < 0) {
913 fprintf(stderr, "Flush terminated\n");
914 exit(1);
915 }
916 if (filter.flushed == 0) {
917 flush_done:
918 if (show_stats) {
919 if (round == 0)
920 printf("Nothing to flush.\n");
921 else
922 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
923 }
924 fflush(stdout);
925 return 0;
926 }
927 round++;
928 if (flush_update() < 0)
929 return 1;
930
931 if (show_stats) {
932 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
933 fflush(stdout);
934 }
935
936 /* If we are flushing, and specifying primary, then we
937 * want to flush only a single round. Otherwise, we'll
938 * start flushing secondaries that were promoted to
939 * primaries.
940 */
941 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
942 goto flush_done;
943 }
944 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
945 fflush(stderr);
946 return 1;
947 }
948
949 if (filter.family != AF_PACKET) {
950 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
951 perror("Cannot send dump request");
952 exit(1);
953 }
954
955 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
956 fprintf(stderr, "Dump terminated\n");
957 exit(1);
958 }
959 }
960
961
962 if (filter.family && filter.family != AF_PACKET) {
963 struct nlmsg_list **lp;
964 lp = &linfo.head;
965
966 if (filter.oneline)
967 no_link = 1;
968
969 while ((l=*lp)!=NULL) {
970 int ok = 0;
971 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
972 struct nlmsg_list *a;
973
974 for (a = ainfo.head; a; a = a->next) {
975 struct nlmsghdr *n = &a->h;
976 struct ifaddrmsg *ifa = NLMSG_DATA(n);
977
978 if (ifa->ifa_index != ifi->ifi_index ||
979 (filter.family && filter.family != ifa->ifa_family))
980 continue;
981 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
982 continue;
983 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
984 continue;
985 if (filter.pfx.family || filter.label) {
986 struct rtattr *tb[IFA_MAX+1];
987 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
988 if (!tb[IFA_LOCAL])
989 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
990
991 if (filter.pfx.family && tb[IFA_LOCAL]) {
992 inet_prefix dst;
993 memset(&dst, 0, sizeof(dst));
994 dst.family = ifa->ifa_family;
995 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
996 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
997 continue;
998 }
999 if (filter.label) {
1000 SPRINT_BUF(b1);
1001 const char *label;
1002 if (tb[IFA_LABEL])
1003 label = RTA_DATA(tb[IFA_LABEL]);
1004 else
1005 label = ll_idx_n2a(ifa->ifa_index, b1);
1006 if (fnmatch(filter.label, label, 0) != 0)
1007 continue;
1008 }
1009 }
1010
1011 ok = 1;
1012 break;
1013 }
1014 if (!ok)
1015 *lp = l->next;
1016 else
1017 lp = &l->next;
1018 }
1019 }
1020
1021 for (l = linfo.head; l; l = n) {
1022 n = l->next;
1023 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
1024 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1025 if (filter.family != AF_PACKET)
1026 print_selected_addrinfo(ifi->ifi_index, ainfo.head, stdout);
1027 }
1028 fflush(stdout);
1029 free(l);
1030 }
1031
1032 return 0;
1033 }
1034
1035 int ipaddr_list_link(int argc, char **argv)
1036 {
1037 preferred_family = AF_PACKET;
1038 do_link = 1;
1039 return ipaddr_list_or_flush(argc, argv, 0);
1040 }
1041
1042 void ipaddr_reset_filter(int oneline)
1043 {
1044 memset(&filter, 0, sizeof(filter));
1045 filter.oneline = oneline;
1046 }
1047
1048 static int default_scope(inet_prefix *lcl)
1049 {
1050 if (lcl->family == AF_INET) {
1051 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
1052 return RT_SCOPE_HOST;
1053 }
1054 return 0;
1055 }
1056
1057 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
1058 {
1059 struct {
1060 struct nlmsghdr n;
1061 struct ifaddrmsg ifa;
1062 char buf[256];
1063 } req;
1064 char *d = NULL;
1065 char *l = NULL;
1066 char *lcl_arg = NULL;
1067 char *valid_lftp = NULL;
1068 char *preferred_lftp = NULL;
1069 inet_prefix lcl;
1070 inet_prefix peer;
1071 int local_len = 0;
1072 int peer_len = 0;
1073 int brd_len = 0;
1074 int any_len = 0;
1075 int scoped = 0;
1076 __u32 preferred_lft = INFINITY_LIFE_TIME;
1077 __u32 valid_lft = INFINITY_LIFE_TIME;
1078 struct ifa_cacheinfo cinfo;
1079
1080 memset(&req, 0, sizeof(req));
1081
1082 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
1083 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
1084 req.n.nlmsg_type = cmd;
1085 req.ifa.ifa_family = preferred_family;
1086
1087 while (argc > 0) {
1088 if (strcmp(*argv, "peer") == 0 ||
1089 strcmp(*argv, "remote") == 0) {
1090 NEXT_ARG();
1091
1092 if (peer_len)
1093 duparg("peer", *argv);
1094 get_prefix(&peer, *argv, req.ifa.ifa_family);
1095 peer_len = peer.bytelen;
1096 if (req.ifa.ifa_family == AF_UNSPEC)
1097 req.ifa.ifa_family = peer.family;
1098 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1099 req.ifa.ifa_prefixlen = peer.bitlen;
1100 } else if (matches(*argv, "broadcast") == 0 ||
1101 strcmp(*argv, "brd") == 0) {
1102 inet_prefix addr;
1103 NEXT_ARG();
1104 if (brd_len)
1105 duparg("broadcast", *argv);
1106 if (strcmp(*argv, "+") == 0)
1107 brd_len = -1;
1108 else if (strcmp(*argv, "-") == 0)
1109 brd_len = -2;
1110 else {
1111 get_addr(&addr, *argv, req.ifa.ifa_family);
1112 if (req.ifa.ifa_family == AF_UNSPEC)
1113 req.ifa.ifa_family = addr.family;
1114 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1115 brd_len = addr.bytelen;
1116 }
1117 } else if (strcmp(*argv, "anycast") == 0) {
1118 inet_prefix addr;
1119 NEXT_ARG();
1120 if (any_len)
1121 duparg("anycast", *argv);
1122 get_addr(&addr, *argv, req.ifa.ifa_family);
1123 if (req.ifa.ifa_family == AF_UNSPEC)
1124 req.ifa.ifa_family = addr.family;
1125 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1126 any_len = addr.bytelen;
1127 } else if (strcmp(*argv, "scope") == 0) {
1128 unsigned scope = 0;
1129 NEXT_ARG();
1130 if (rtnl_rtscope_a2n(&scope, *argv))
1131 invarg(*argv, "invalid scope value.");
1132 req.ifa.ifa_scope = scope;
1133 scoped = 1;
1134 } else if (strcmp(*argv, "dev") == 0) {
1135 NEXT_ARG();
1136 d = *argv;
1137 } else if (strcmp(*argv, "label") == 0) {
1138 NEXT_ARG();
1139 l = *argv;
1140 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1141 } else if (matches(*argv, "valid_lft") == 0) {
1142 if (valid_lftp)
1143 duparg("valid_lft", *argv);
1144 NEXT_ARG();
1145 valid_lftp = *argv;
1146 if (set_lifetime(&valid_lft, *argv))
1147 invarg("valid_lft value", *argv);
1148 } else if (matches(*argv, "preferred_lft") == 0) {
1149 if (preferred_lftp)
1150 duparg("preferred_lft", *argv);
1151 NEXT_ARG();
1152 preferred_lftp = *argv;
1153 if (set_lifetime(&preferred_lft, *argv))
1154 invarg("preferred_lft value", *argv);
1155 } else if (strcmp(*argv, "home") == 0) {
1156 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1157 } else if (strcmp(*argv, "nodad") == 0) {
1158 req.ifa.ifa_flags |= IFA_F_NODAD;
1159 } else {
1160 if (strcmp(*argv, "local") == 0) {
1161 NEXT_ARG();
1162 }
1163 if (matches(*argv, "help") == 0)
1164 usage();
1165 if (local_len)
1166 duparg2("local", *argv);
1167 lcl_arg = *argv;
1168 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1169 if (req.ifa.ifa_family == AF_UNSPEC)
1170 req.ifa.ifa_family = lcl.family;
1171 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1172 local_len = lcl.bytelen;
1173 }
1174 argc--; argv++;
1175 }
1176 if (d == NULL) {
1177 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1178 return -1;
1179 }
1180 if (l && matches(d, l) != 0) {
1181 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1182 return -1;
1183 }
1184
1185 if (peer_len == 0 && local_len) {
1186 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1187 fprintf(stderr,
1188 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1189 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1190 " This special behaviour is likely to disappear in further releases,\n" \
1191 " fix your scripts!\n", lcl_arg, local_len*8);
1192 } else {
1193 peer = lcl;
1194 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1195 }
1196 }
1197 if (req.ifa.ifa_prefixlen == 0)
1198 req.ifa.ifa_prefixlen = lcl.bitlen;
1199
1200 if (brd_len < 0 && cmd != RTM_DELADDR) {
1201 inet_prefix brd;
1202 int i;
1203 if (req.ifa.ifa_family != AF_INET) {
1204 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1205 return -1;
1206 }
1207 brd = peer;
1208 if (brd.bitlen <= 30) {
1209 for (i=31; i>=brd.bitlen; i--) {
1210 if (brd_len == -1)
1211 brd.data[0] |= htonl(1<<(31-i));
1212 else
1213 brd.data[0] &= ~htonl(1<<(31-i));
1214 }
1215 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1216 brd_len = brd.bytelen;
1217 }
1218 }
1219 if (!scoped && cmd != RTM_DELADDR)
1220 req.ifa.ifa_scope = default_scope(&lcl);
1221
1222 ll_init_map(&rth);
1223
1224 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1225 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1226 return -1;
1227 }
1228
1229 if (valid_lftp || preferred_lftp) {
1230 if (!valid_lft) {
1231 fprintf(stderr, "valid_lft is zero\n");
1232 return -1;
1233 }
1234 if (valid_lft < preferred_lft) {
1235 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1236 return -1;
1237 }
1238
1239 memset(&cinfo, 0, sizeof(cinfo));
1240 cinfo.ifa_prefered = preferred_lft;
1241 cinfo.ifa_valid = valid_lft;
1242 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1243 sizeof(cinfo));
1244 }
1245
1246 if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
1247 return -2;
1248
1249 return 0;
1250 }
1251
1252 int do_ipaddr(int argc, char **argv)
1253 {
1254 if (argc < 1)
1255 return ipaddr_list_or_flush(0, NULL, 0);
1256 if (matches(*argv, "add") == 0)
1257 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1258 if (matches(*argv, "change") == 0 ||
1259 strcmp(*argv, "chg") == 0)
1260 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1261 if (matches(*argv, "replace") == 0)
1262 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
1263 if (matches(*argv, "delete") == 0)
1264 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
1265 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1266 || matches(*argv, "lst") == 0)
1267 return ipaddr_list_or_flush(argc-1, argv+1, 0);
1268 if (matches(*argv, "flush") == 0)
1269 return ipaddr_list_or_flush(argc-1, argv+1, 1);
1270 if (matches(*argv, "help") == 0)
1271 usage();
1272 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);
1273 exit(-1);
1274 }
1275
Upstream mirror of iproute2