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[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/param.h>
23 #include <errno.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
26 #include <string.h>
27 #include <fnmatch.h>
28
29 #include <linux/netdevice.h>
30 #include <linux/if_arp.h>
31 #include <linux/sockios.h>
32 #include <linux/net_namespace.h>
33
34 #include "rt_names.h"
35 #include "utils.h"
36 #include "ll_map.h"
37 #include "ip_common.h"
38 #include "color.h"
39
40 enum {
41 IPADD_LIST,
42 IPADD_FLUSH,
43 IPADD_SAVE,
44 };
45
46 static struct
47 {
48 int ifindex;
49 int family;
50 int oneline;
51 int showqueue;
52 inet_prefix pfx;
53 int scope, scopemask;
54 int flags, flagmask;
55 int up;
56 char *label;
57 int flushed;
58 char *flushb;
59 int flushp;
60 int flushe;
61 int group;
62 int master;
63 char *kind;
64 char *slave_kind;
65 } filter;
66
67 static int do_link;
68
69 static void usage(void) __attribute__((noreturn));
70
71 static void usage(void)
72 {
73 if (do_link) {
74 iplink_usage();
75 }
76 fprintf(stderr, "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n");
77 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
78 fprintf(stderr, " ip address del IFADDR dev IFNAME [mngtmpaddr]\n");
79 fprintf(stderr, " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n");
80 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n");
81 fprintf(stderr, " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n");
82 fprintf(stderr, " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n");
83 fprintf(stderr, " [ label LABEL ] [up] [ vrf NAME ] ]\n");
84 fprintf(stderr, " ip address {showdump|restore}\n");
85 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
86 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
87 fprintf(stderr, " [ label IFNAME ] [ scope SCOPE-ID ]\n");
88 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
89 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
90 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
91 fprintf(stderr, " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n");
92 fprintf(stderr, " CONFFLAG-LIST ]\n");
93 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
94 fprintf(stderr, "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n");
95 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
96 fprintf(stderr, "LFT := forever | SECONDS\n");
97 fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |\n");
98 fprintf(stderr, " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | lowpan |\n");
99 fprintf(stderr, " gre | gretap | ip6gre | ip6gretap | vti | nlmon | can |\n");
100 fprintf(stderr, " bond_slave | ipvlan | geneve | bridge_slave | vrf | hsr}\n");
101
102 exit(-1);
103 }
104
105 static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown)
106 {
107 fprintf(fp, "<");
108 if (flags & IFF_UP && !(flags & IFF_RUNNING))
109 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
110 flags &= ~IFF_RUNNING;
111 #define _PF(f) if (flags&IFF_##f) { \
112 flags &= ~IFF_##f ; \
113 fprintf(fp, #f "%s", flags ? "," : ""); }
114 _PF(LOOPBACK);
115 _PF(BROADCAST);
116 _PF(POINTOPOINT);
117 _PF(MULTICAST);
118 _PF(NOARP);
119 _PF(ALLMULTI);
120 _PF(PROMISC);
121 _PF(MASTER);
122 _PF(SLAVE);
123 _PF(DEBUG);
124 _PF(DYNAMIC);
125 _PF(AUTOMEDIA);
126 _PF(PORTSEL);
127 _PF(NOTRAILERS);
128 _PF(UP);
129 _PF(LOWER_UP);
130 _PF(DORMANT);
131 _PF(ECHO);
132 #undef _PF
133 if (flags)
134 fprintf(fp, "%x", flags);
135 if (mdown)
136 fprintf(fp, ",M-DOWN");
137 fprintf(fp, "> ");
138 }
139
140 static const char *oper_states[] = {
141 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
142 "TESTING", "DORMANT", "UP"
143 };
144
145 static void print_operstate(FILE *f, __u8 state)
146 {
147 if (state >= ARRAY_SIZE(oper_states)) {
148 fprintf(f, "state %#x ", state);
149 } else if (brief) {
150 color_fprintf(f, oper_state_color(state),
151 "%-14s ", oper_states[state]);
152 } else {
153 fprintf(f, "state ");
154 color_fprintf(f, oper_state_color(state),
155 "%s ", oper_states[state]);
156 }
157 }
158
159 int get_operstate(const char *name)
160 {
161 int i;
162
163 for (i = 0; i < ARRAY_SIZE(oper_states); i++)
164 if (strcasecmp(name, oper_states[i]) == 0)
165 return i;
166 return -1;
167 }
168
169 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
170 {
171 int qlen;
172
173 if (tb[IFLA_TXQLEN])
174 qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
175 else {
176 struct ifreq ifr = {};
177 int s = socket(AF_INET, SOCK_STREAM, 0);
178
179 if (s < 0)
180 return;
181
182 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
183 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
184 fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
185 close(s);
186 return;
187 }
188 close(s);
189 qlen = ifr.ifr_qlen;
190 }
191 if (qlen)
192 fprintf(f, "qlen %d", qlen);
193 }
194
195 static const char *link_modes[] = {
196 "DEFAULT", "DORMANT"
197 };
198
199 static void print_linkmode(FILE *f, struct rtattr *tb)
200 {
201 unsigned int mode = rta_getattr_u8(tb);
202
203 if (mode >= ARRAY_SIZE(link_modes))
204 fprintf(f, "mode %d ", mode);
205 else
206 fprintf(f, "mode %s ", link_modes[mode]);
207 }
208
209 static char *parse_link_kind(struct rtattr *tb, bool slave)
210 {
211 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
212 int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND;
213
214 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
215
216 if (linkinfo[attr])
217 return RTA_DATA(linkinfo[attr]);
218
219 return "";
220 }
221
222 static int match_link_kind(struct rtattr **tb, const char *kind, bool slave)
223 {
224 if (!tb[IFLA_LINKINFO])
225 return -1;
226
227 return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind);
228 }
229
230 static void print_linktype(FILE *fp, struct rtattr *tb)
231 {
232 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
233 struct link_util *lu;
234 struct link_util *slave_lu;
235 char *kind;
236 char *slave_kind;
237
238 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
239
240 if (linkinfo[IFLA_INFO_KIND]) {
241 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
242
243 fprintf(fp, "%s", _SL_);
244 fprintf(fp, " %s ", kind);
245
246 lu = get_link_kind(kind);
247 if (lu && lu->print_opt) {
248 struct rtattr *attr[lu->maxattr+1], **data = NULL;
249
250 if (linkinfo[IFLA_INFO_DATA]) {
251 parse_rtattr_nested(attr, lu->maxattr,
252 linkinfo[IFLA_INFO_DATA]);
253 data = attr;
254 }
255 lu->print_opt(lu, fp, data);
256
257 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
258 lu->print_xstats)
259 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
260 }
261 }
262
263 if (linkinfo[IFLA_INFO_SLAVE_KIND]) {
264 slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]);
265
266 fprintf(fp, "%s", _SL_);
267 fprintf(fp, " %s_slave ", slave_kind);
268
269 slave_lu = get_link_slave_kind(slave_kind);
270 if (slave_lu && slave_lu->print_opt) {
271 struct rtattr *attr[slave_lu->maxattr+1], **data = NULL;
272
273 if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
274 parse_rtattr_nested(attr, slave_lu->maxattr,
275 linkinfo[IFLA_INFO_SLAVE_DATA]);
276 data = attr;
277 }
278 slave_lu->print_opt(slave_lu, fp, data);
279 }
280 }
281 }
282
283 static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
284 {
285 struct rtattr *inet6_attr;
286 struct rtattr *tb[IFLA_INET6_MAX + 1];
287
288 inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
289 if (!inet6_attr)
290 return;
291
292 parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
293
294 if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
295 __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]);
296
297 switch (mode) {
298 case IN6_ADDR_GEN_MODE_EUI64:
299 fprintf(fp, "addrgenmode eui64 ");
300 break;
301 case IN6_ADDR_GEN_MODE_NONE:
302 fprintf(fp, "addrgenmode none ");
303 break;
304 case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
305 fprintf(fp, "addrgenmode stable_secret ");
306 break;
307 case IN6_ADDR_GEN_MODE_RANDOM:
308 fprintf(fp, "addrgenmode random ");
309 break;
310 default:
311 fprintf(fp, "addrgenmode %#.2hhx ", mode);
312 break;
313 }
314 }
315 }
316
317 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats);
318
319 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
320 {
321 struct ifla_vf_mac *vf_mac;
322 struct ifla_vf_vlan *vf_vlan;
323 struct ifla_vf_tx_rate *vf_tx_rate;
324 struct ifla_vf_spoofchk *vf_spoofchk;
325 struct ifla_vf_link_state *vf_linkstate;
326 struct rtattr *vf[IFLA_VF_MAX + 1] = {};
327 struct rtattr *tmp;
328
329 SPRINT_BUF(b1);
330
331 if (vfinfo->rta_type != IFLA_VF_INFO) {
332 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
333 return;
334 }
335
336 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
337
338 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
339 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
340 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
341
342 /* Check if the spoof checking vf info type is supported by
343 * this kernel.
344 */
345 tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
346 vf[IFLA_VF_TX_RATE]->rta_len);
347
348 if (tmp->rta_type != IFLA_VF_SPOOFCHK)
349 vf_spoofchk = NULL;
350 else
351 vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
352
353 if (vf_spoofchk) {
354 /* Check if the link state vf info type is supported by
355 * this kernel.
356 */
357 tmp = (struct rtattr *)((char *)vf[IFLA_VF_SPOOFCHK] +
358 vf[IFLA_VF_SPOOFCHK]->rta_len);
359
360 if (tmp->rta_type != IFLA_VF_LINK_STATE)
361 vf_linkstate = NULL;
362 else
363 vf_linkstate = RTA_DATA(vf[IFLA_VF_LINK_STATE]);
364 } else
365 vf_linkstate = NULL;
366
367 fprintf(fp, "%s vf %d MAC %s", _SL_, vf_mac->vf,
368 ll_addr_n2a((unsigned char *)&vf_mac->mac,
369 ETH_ALEN, 0, b1, sizeof(b1)));
370 if (vf_vlan->vlan)
371 fprintf(fp, ", vlan %d", vf_vlan->vlan);
372 if (vf_vlan->qos)
373 fprintf(fp, ", qos %d", vf_vlan->qos);
374 if (vf_tx_rate->rate)
375 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
376
377 if (vf[IFLA_VF_RATE]) {
378 struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
379
380 if (vf_rate->max_tx_rate)
381 fprintf(fp, ", max_tx_rate %dMbps", vf_rate->max_tx_rate);
382 if (vf_rate->min_tx_rate)
383 fprintf(fp, ", min_tx_rate %dMbps", vf_rate->min_tx_rate);
384 }
385
386 if (vf_spoofchk && vf_spoofchk->setting != -1) {
387 if (vf_spoofchk->setting)
388 fprintf(fp, ", spoof checking on");
389 else
390 fprintf(fp, ", spoof checking off");
391 }
392 if (vf_linkstate) {
393 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
394 fprintf(fp, ", link-state auto");
395 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
396 fprintf(fp, ", link-state enable");
397 else
398 fprintf(fp, ", link-state disable");
399 }
400 if (vf[IFLA_VF_TRUST]) {
401 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
402
403 if (vf_trust->setting != -1)
404 fprintf(fp, ", trust %s",
405 vf_trust->setting ? "on" : "off");
406 }
407 if (vf[IFLA_VF_STATS] && show_stats)
408 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
409 }
410
411 static void print_num(FILE *fp, unsigned int width, uint64_t count)
412 {
413 const char *prefix = "kMGTPE";
414 const unsigned int base = use_iec ? 1024 : 1000;
415 uint64_t powi = 1;
416 uint16_t powj = 1;
417 uint8_t precision = 2;
418 char buf[64];
419
420 if (!human_readable || count < base) {
421 fprintf(fp, "%-*"PRIu64" ", width, count);
422 return;
423 }
424
425 /* increase value by a factor of 1000/1024 and print
426 * if result is something a human can read */
427 for (;;) {
428 powi *= base;
429 if (count / base < powi)
430 break;
431
432 if (!prefix[1])
433 break;
434 ++prefix;
435 }
436
437 /* try to guess a good number of digits for precision */
438 for (; precision > 0; precision--) {
439 powj *= 10;
440 if (count / powi < powj)
441 break;
442 }
443
444 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
445 (double) count / powi, *prefix, use_iec ? "i" : "");
446
447 fprintf(fp, "%-*s ", width, buf);
448 }
449
450 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
451 {
452 struct rtattr *vf[IFLA_VF_STATS_MAX + 1] = {};
453
454 if (vfstats->rta_type != IFLA_VF_STATS) {
455 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
456 return;
457 }
458
459 parse_rtattr_nested(vf, IFLA_VF_MAX, vfstats);
460
461 /* RX stats */
462 fprintf(fp, "%s", _SL_);
463 fprintf(fp, " RX: bytes packets mcast bcast %s", _SL_);
464 fprintf(fp, " ");
465
466 print_num(fp, 10, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_RX_BYTES]));
467 print_num(fp, 8, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_RX_PACKETS]));
468 print_num(fp, 7, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_MULTICAST]));
469 print_num(fp, 7, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_BROADCAST]));
470
471 /* TX stats */
472 fprintf(fp, "%s", _SL_);
473 fprintf(fp, " TX: bytes packets %s", _SL_);
474 fprintf(fp, " ");
475
476 print_num(fp, 10, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_TX_BYTES]));
477 print_num(fp, 8, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_TX_PACKETS]));
478 }
479
480 static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s,
481 const struct rtattr *carrier_changes)
482 {
483 /* RX stats */
484 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
485 s->rx_compressed ? "compressed" : "", _SL_);
486
487 fprintf(fp, " ");
488 print_num(fp, 10, s->rx_bytes);
489 print_num(fp, 8, s->rx_packets);
490 print_num(fp, 7, s->rx_errors);
491 print_num(fp, 7, s->rx_dropped);
492 print_num(fp, 7, s->rx_over_errors);
493 print_num(fp, 7, s->multicast);
494 if (s->rx_compressed)
495 print_num(fp, 7, s->rx_compressed);
496
497 /* RX error stats */
498 if (show_stats > 1) {
499 fprintf(fp, "%s", _SL_);
500 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
501 s->rx_nohandler ? " nohandler" : "", _SL_);
502
503 fprintf(fp, " ");
504 print_num(fp, 8, s->rx_length_errors);
505 print_num(fp, 7, s->rx_crc_errors);
506 print_num(fp, 7, s->rx_frame_errors);
507 print_num(fp, 7, s->rx_fifo_errors);
508 print_num(fp, 7, s->rx_missed_errors);
509 if (s->rx_nohandler)
510 print_num(fp, 7, s->rx_nohandler);
511
512 }
513 fprintf(fp, "%s", _SL_);
514
515 /* TX stats */
516 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
517 s->tx_compressed ? "compressed" : "", _SL_);
518
519 fprintf(fp, " ");
520 print_num(fp, 10, s->tx_bytes);
521 print_num(fp, 8, s->tx_packets);
522 print_num(fp, 7, s->tx_errors);
523 print_num(fp, 7, s->tx_dropped);
524 print_num(fp, 7, s->tx_carrier_errors);
525 print_num(fp, 7, s->collisions);
526 if (s->tx_compressed)
527 print_num(fp, 7, s->tx_compressed);
528
529 /* TX error stats */
530 if (show_stats > 1) {
531 fprintf(fp, "%s", _SL_);
532 fprintf(fp, " TX errors: aborted fifo window heartbeat");
533 if (carrier_changes)
534 fprintf(fp, " transns");
535 fprintf(fp, "%s", _SL_);
536
537 fprintf(fp, " ");
538 print_num(fp, 8, s->tx_aborted_errors);
539 print_num(fp, 7, s->tx_fifo_errors);
540 print_num(fp, 7, s->tx_window_errors);
541 print_num(fp, 7, s->tx_heartbeat_errors);
542 if (carrier_changes)
543 print_num(fp, 7, *(uint32_t *)RTA_DATA(carrier_changes));
544 }
545 }
546
547 static void print_link_stats32(FILE *fp, const struct rtnl_link_stats *s,
548 const struct rtattr *carrier_changes)
549 {
550 /* RX stats */
551 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
552 s->rx_compressed ? "compressed" : "", _SL_);
553
554
555 fprintf(fp, " ");
556 print_num(fp, 10, s->rx_bytes);
557 print_num(fp, 8, s->rx_packets);
558 print_num(fp, 7, s->rx_errors);
559 print_num(fp, 7, s->rx_dropped);
560 print_num(fp, 7, s->rx_over_errors);
561 print_num(fp, 7, s->multicast);
562 if (s->rx_compressed)
563 print_num(fp, 7, s->rx_compressed);
564
565 /* RX error stats */
566 if (show_stats > 1) {
567 fprintf(fp, "%s", _SL_);
568 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
569 s->rx_nohandler ? " nohandler" : "", _SL_);
570 fprintf(fp, " ");
571 print_num(fp, 8, s->rx_length_errors);
572 print_num(fp, 7, s->rx_crc_errors);
573 print_num(fp, 7, s->rx_frame_errors);
574 print_num(fp, 7, s->rx_fifo_errors);
575 print_num(fp, 7, s->rx_missed_errors);
576 if (s->rx_nohandler)
577 print_num(fp, 7, s->rx_nohandler);
578 }
579 fprintf(fp, "%s", _SL_);
580
581 /* TX stats */
582 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
583 s->tx_compressed ? "compressed" : "", _SL_);
584
585 fprintf(fp, " ");
586 print_num(fp, 10, s->tx_bytes);
587 print_num(fp, 8, s->tx_packets);
588 print_num(fp, 7, s->tx_errors);
589 print_num(fp, 7, s->tx_dropped);
590 print_num(fp, 7, s->tx_carrier_errors);
591 print_num(fp, 7, s->collisions);
592 if (s->tx_compressed)
593 print_num(fp, 7, s->tx_compressed);
594
595 /* TX error stats */
596 if (show_stats > 1) {
597 fprintf(fp, "%s", _SL_);
598 fprintf(fp, " TX errors: aborted fifo window heartbeat");
599 if (carrier_changes)
600 fprintf(fp, " transns");
601 fprintf(fp, "%s", _SL_);
602
603 fprintf(fp, " ");
604 print_num(fp, 8, s->tx_aborted_errors);
605 print_num(fp, 7, s->tx_fifo_errors);
606 print_num(fp, 7, s->tx_window_errors);
607 print_num(fp, 7, s->tx_heartbeat_errors);
608 if (carrier_changes)
609 print_num(fp, 7, *(uint32_t *)RTA_DATA(carrier_changes));
610 }
611 }
612
613 static void __print_link_stats(FILE *fp, struct rtattr **tb)
614 {
615 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
616
617 if (tb[IFLA_STATS64]) {
618 struct rtnl_link_stats64 stats = { 0 };
619
620 memcpy(&stats, RTA_DATA(tb[IFLA_STATS64]),
621 MIN(RTA_PAYLOAD(tb[IFLA_STATS64]), sizeof(stats)));
622
623 print_link_stats64(fp, &stats, carrier_changes);
624 } else if (tb[IFLA_STATS]) {
625 struct rtnl_link_stats stats = { 0 };
626
627 memcpy(&stats, RTA_DATA(tb[IFLA_STATS]),
628 MIN(RTA_PAYLOAD(tb[IFLA_STATS]), sizeof(stats)));
629
630 print_link_stats32(fp, &stats, carrier_changes);
631 }
632 }
633
634 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
635 {
636 struct ifinfomsg *ifi = NLMSG_DATA(n);
637 struct rtattr *tb[IFLA_MAX+1];
638
639 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
640 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
641 __print_link_stats(fp, tb);
642 fprintf(fp, "%s", _SL_);
643 }
644
645 int print_linkinfo_brief(const struct sockaddr_nl *who,
646 struct nlmsghdr *n, void *arg)
647 {
648 FILE *fp = (FILE *)arg;
649 struct ifinfomsg *ifi = NLMSG_DATA(n);
650 struct rtattr *tb[IFLA_MAX+1];
651 int len = n->nlmsg_len;
652 char *name;
653 char buf[32] = { 0, };
654 unsigned int m_flag = 0;
655
656 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
657 return -1;
658
659 len -= NLMSG_LENGTH(sizeof(*ifi));
660 if (len < 0)
661 return -1;
662
663 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
664 return -1;
665 if (filter.up && !(ifi->ifi_flags&IFF_UP))
666 return -1;
667
668 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
669 if (tb[IFLA_IFNAME] == NULL) {
670 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
671 }
672 if (filter.label &&
673 (!filter.family || filter.family == AF_PACKET) &&
674 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
675 return -1;
676
677 if (tb[IFLA_GROUP]) {
678 int group = *(int *)RTA_DATA(tb[IFLA_GROUP]);
679
680 if (filter.group != -1 && group != filter.group)
681 return -1;
682 }
683
684 if (tb[IFLA_MASTER]) {
685 int master = *(int *)RTA_DATA(tb[IFLA_MASTER]);
686
687 if (filter.master > 0 && master != filter.master)
688 return -1;
689 } else if (filter.master > 0)
690 return -1;
691
692 if (filter.kind && match_link_kind(tb, filter.kind, 0))
693 return -1;
694
695 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
696 return -1;
697
698 if (n->nlmsg_type == RTM_DELLINK)
699 fprintf(fp, "Deleted ");
700
701 name = (char *)(tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
702
703 if (tb[IFLA_LINK]) {
704 SPRINT_BUF(b1);
705 int iflink = *(int *)RTA_DATA(tb[IFLA_LINK]);
706
707 if (iflink == 0)
708 snprintf(buf, sizeof(buf), "%s@NONE", name);
709 else {
710 snprintf(buf, sizeof(buf),
711 "%s@%s", name, ll_idx_n2a(iflink, b1));
712 m_flag = ll_index_to_flags(iflink);
713 m_flag = !(m_flag & IFF_UP);
714 }
715 } else
716 snprintf(buf, sizeof(buf), "%s", name);
717
718 fprintf(fp, "%-16s ", buf);
719
720 if (tb[IFLA_OPERSTATE])
721 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
722
723 if (filter.family == AF_PACKET) {
724 SPRINT_BUF(b1);
725 if (tb[IFLA_ADDRESS]) {
726 color_fprintf(fp, COLOR_MAC, "%s ",
727 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
728 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
729 ifi->ifi_type,
730 b1, sizeof(b1)));
731 }
732 }
733
734 if (filter.family == AF_PACKET)
735 print_link_flags(fp, ifi->ifi_flags, m_flag);
736
737 if (filter.family == AF_PACKET)
738 fprintf(fp, "\n");
739 fflush(fp);
740 return 0;
741 }
742
743 int print_linkinfo(const struct sockaddr_nl *who,
744 struct nlmsghdr *n, void *arg)
745 {
746 FILE *fp = (FILE *)arg;
747 struct ifinfomsg *ifi = NLMSG_DATA(n);
748 struct rtattr *tb[IFLA_MAX+1];
749 int len = n->nlmsg_len;
750 unsigned int m_flag = 0;
751
752 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
753 return 0;
754
755 len -= NLMSG_LENGTH(sizeof(*ifi));
756 if (len < 0)
757 return -1;
758
759 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
760 return 0;
761 if (filter.up && !(ifi->ifi_flags&IFF_UP))
762 return 0;
763
764 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
765 if (tb[IFLA_IFNAME] == NULL) {
766 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
767 }
768 if (filter.label &&
769 (!filter.family || filter.family == AF_PACKET) &&
770 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
771 return 0;
772
773 if (tb[IFLA_GROUP]) {
774 int group = *(int *)RTA_DATA(tb[IFLA_GROUP]);
775
776 if (filter.group != -1 && group != filter.group)
777 return -1;
778 }
779
780 if (tb[IFLA_MASTER]) {
781 int master = *(int *)RTA_DATA(tb[IFLA_MASTER]);
782
783 if (filter.master > 0 && master != filter.master)
784 return -1;
785 } else if (filter.master > 0)
786 return -1;
787
788 if (filter.kind && match_link_kind(tb, filter.kind, 0))
789 return -1;
790
791 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
792 return -1;
793
794 if (n->nlmsg_type == RTM_DELLINK)
795 fprintf(fp, "Deleted ");
796
797 fprintf(fp, "%d: ", ifi->ifi_index);
798 color_fprintf(fp, COLOR_IFNAME, "%s",
799 tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
800
801 if (tb[IFLA_LINK]) {
802 SPRINT_BUF(b1);
803 int iflink = *(int *)RTA_DATA(tb[IFLA_LINK]);
804
805 if (iflink == 0)
806 fprintf(fp, "@NONE: ");
807 else {
808 if (tb[IFLA_LINK_NETNSID])
809 fprintf(fp, "@if%d: ", iflink);
810 else {
811 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
812 m_flag = ll_index_to_flags(iflink);
813 m_flag = !(m_flag & IFF_UP);
814 }
815 }
816 } else {
817 fprintf(fp, ": ");
818 }
819 print_link_flags(fp, ifi->ifi_flags, m_flag);
820
821 if (tb[IFLA_MTU])
822 fprintf(fp, "mtu %u ", *(int *)RTA_DATA(tb[IFLA_MTU]));
823 if (tb[IFLA_QDISC])
824 fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
825 if (tb[IFLA_MASTER]) {
826 SPRINT_BUF(b1);
827 fprintf(fp, "master %s ", ll_idx_n2a(*(int *)RTA_DATA(tb[IFLA_MASTER]), b1));
828 }
829
830 if (tb[IFLA_OPERSTATE])
831 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
832
833 if (do_link && tb[IFLA_LINKMODE])
834 print_linkmode(fp, tb[IFLA_LINKMODE]);
835
836 if (tb[IFLA_GROUP]) {
837 SPRINT_BUF(b1);
838 int group = *(int *)RTA_DATA(tb[IFLA_GROUP]);
839
840 fprintf(fp, "group %s ", rtnl_group_n2a(group, b1, sizeof(b1)));
841 }
842
843 if (filter.showqueue)
844 print_queuelen(fp, tb);
845
846 if (!filter.family || filter.family == AF_PACKET || show_details) {
847 SPRINT_BUF(b1);
848 fprintf(fp, "%s", _SL_);
849 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
850
851 if (tb[IFLA_ADDRESS]) {
852 color_fprintf(fp, COLOR_MAC, "%s",
853 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
854 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
855 ifi->ifi_type,
856 b1, sizeof(b1)));
857 }
858 if (tb[IFLA_BROADCAST]) {
859 if (ifi->ifi_flags&IFF_POINTOPOINT)
860 fprintf(fp, " peer ");
861 else
862 fprintf(fp, " brd ");
863 color_fprintf(fp, COLOR_MAC, "%s",
864 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
865 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
866 ifi->ifi_type,
867 b1, sizeof(b1)));
868 }
869 }
870
871 if (tb[IFLA_LINK_NETNSID]) {
872 int id = *(int *)RTA_DATA(tb[IFLA_LINK_NETNSID]);
873
874 if (id >= 0)
875 fprintf(fp, " link-netnsid %d", id);
876 else
877 fprintf(fp, " link-netnsid unknown");
878 }
879
880 if (tb[IFLA_PROTO_DOWN]) {
881 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
882 fprintf(fp, " protodown on ");
883 }
884
885 if (show_details) {
886 if (tb[IFLA_PROMISCUITY])
887 fprintf(fp, " promiscuity %u ",
888 *(int *)RTA_DATA(tb[IFLA_PROMISCUITY]));
889
890 if (tb[IFLA_LINKINFO])
891 print_linktype(fp, tb[IFLA_LINKINFO]);
892
893 if (do_link && tb[IFLA_AF_SPEC])
894 print_af_spec(fp, tb[IFLA_AF_SPEC]);
895
896 if (tb[IFLA_NUM_TX_QUEUES])
897 fprintf(fp, "numtxqueues %u ",
898 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
899
900 if (tb[IFLA_NUM_RX_QUEUES])
901 fprintf(fp, "numrxqueues %u ",
902 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
903
904 if (tb[IFLA_PHYS_PORT_NAME])
905 fprintf(fp, "portname %s ",
906 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
907
908 if (tb[IFLA_PHYS_PORT_ID]) {
909 SPRINT_BUF(b1);
910 fprintf(fp, "portid %s ",
911 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
912 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
913 b1, sizeof(b1)));
914 }
915
916 if (tb[IFLA_PHYS_SWITCH_ID]) {
917 SPRINT_BUF(b1);
918 fprintf(fp, "switchid %s ",
919 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
920 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
921 b1, sizeof(b1)));
922 }
923 }
924
925
926 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
927 fprintf(fp, "%s alias %s", _SL_,
928 rta_getattr_str(tb[IFLA_IFALIAS]));
929 }
930
931 if (do_link && show_stats) {
932 fprintf(fp, "%s", _SL_);
933 __print_link_stats(fp, tb);
934 }
935
936 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
937 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
938 int rem = RTA_PAYLOAD(vflist);
939
940 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
941 print_vfinfo(fp, i);
942 }
943
944 fprintf(fp, "\n");
945 fflush(fp);
946 return 1;
947 }
948
949 static int flush_update(void)
950 {
951
952 /*
953 * Note that the kernel may delete multiple addresses for one
954 * delete request (e.g. if ipv4 address promotion is disabled).
955 * Since a flush operation is really a series of delete requests
956 * its possible that we may request an address delete that has
957 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
958 * errors returned from a flush request
959 */
960 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
961 (errno != EADDRNOTAVAIL)) {
962 perror("Failed to send flush request");
963 return -1;
964 }
965 filter.flushp = 0;
966 return 0;
967 }
968
969 static int set_lifetime(unsigned int *lifetime, char *argv)
970 {
971 if (strcmp(argv, "forever") == 0)
972 *lifetime = INFINITY_LIFE_TIME;
973 else if (get_u32(lifetime, argv, 0))
974 return -1;
975
976 return 0;
977 }
978
979 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
980 struct rtattr *ifa_flags_attr)
981 {
982 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
983 ifa->ifa_flags;
984 }
985
986 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
987 void *arg)
988 {
989 FILE *fp = arg;
990 struct ifaddrmsg *ifa = NLMSG_DATA(n);
991 int len = n->nlmsg_len;
992 int deprecated = 0;
993 /* Use local copy of ifa_flags to not interfere with filtering code */
994 unsigned int ifa_flags;
995 struct rtattr *rta_tb[IFA_MAX+1];
996
997 SPRINT_BUF(b1);
998
999 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1000 return 0;
1001 len -= NLMSG_LENGTH(sizeof(*ifa));
1002 if (len < 0) {
1003 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1004 return -1;
1005 }
1006
1007 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1008 return 0;
1009
1010 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1011 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1012
1013 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1014
1015 if (!rta_tb[IFA_LOCAL])
1016 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1017 if (!rta_tb[IFA_ADDRESS])
1018 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1019
1020 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1021 return 0;
1022 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1023 return 0;
1024 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1025 return 0;
1026 if (filter.label) {
1027 SPRINT_BUF(b1);
1028 const char *label;
1029
1030 if (rta_tb[IFA_LABEL])
1031 label = RTA_DATA(rta_tb[IFA_LABEL]);
1032 else
1033 label = ll_idx_n2a(ifa->ifa_index, b1);
1034 if (fnmatch(filter.label, label, 0) != 0)
1035 return 0;
1036 }
1037 if (filter.pfx.family) {
1038 if (rta_tb[IFA_LOCAL]) {
1039 inet_prefix dst = { .family = ifa->ifa_family };
1040
1041 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
1042 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
1043 return 0;
1044 }
1045 }
1046
1047 if (filter.family && filter.family != ifa->ifa_family)
1048 return 0;
1049
1050 if (filter.flushb) {
1051 struct nlmsghdr *fn;
1052
1053 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1054 if (flush_update())
1055 return -1;
1056 }
1057 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1058 memcpy(fn, n, n->nlmsg_len);
1059 fn->nlmsg_type = RTM_DELADDR;
1060 fn->nlmsg_flags = NLM_F_REQUEST;
1061 fn->nlmsg_seq = ++rth.seq;
1062 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1063 filter.flushed++;
1064 if (show_stats < 2)
1065 return 0;
1066 }
1067
1068 if (n->nlmsg_type == RTM_DELADDR)
1069 fprintf(fp, "Deleted ");
1070
1071 if (!brief) {
1072 if (filter.oneline || filter.flushb)
1073 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
1074 if (ifa->ifa_family == AF_INET)
1075 fprintf(fp, " inet ");
1076 else if (ifa->ifa_family == AF_INET6)
1077 fprintf(fp, " inet6 ");
1078 else if (ifa->ifa_family == AF_DECnet)
1079 fprintf(fp, " dnet ");
1080 else if (ifa->ifa_family == AF_IPX)
1081 fprintf(fp, " ipx ");
1082 else
1083 fprintf(fp, " family %d ", ifa->ifa_family);
1084 }
1085
1086 if (rta_tb[IFA_LOCAL]) {
1087 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s",
1088 format_host_rta(ifa->ifa_family,
1089 rta_tb[IFA_LOCAL]));
1090 if (rta_tb[IFA_ADDRESS] &&
1091 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1092 RTA_DATA(rta_tb[IFA_LOCAL]),
1093 ifa->ifa_family == AF_INET ? 4 : 16)) {
1094 fprintf(fp, " peer ");
1095 color_fprintf(fp, ifa_family_color(ifa->ifa_family),
1096 "%s", format_host_rta(ifa->ifa_family,
1097 rta_tb[IFA_ADDRESS]));
1098 }
1099 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
1100 }
1101
1102 if (brief)
1103 goto brief_exit;
1104
1105 if (rta_tb[IFA_BROADCAST]) {
1106 fprintf(fp, "brd ");
1107 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ",
1108 format_host_rta(ifa->ifa_family,
1109 rta_tb[IFA_BROADCAST]));
1110 }
1111 if (rta_tb[IFA_ANYCAST]) {
1112 fprintf(fp, "any ");
1113 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ",
1114 format_host_rta(ifa->ifa_family,
1115 rta_tb[IFA_ANYCAST]));
1116 }
1117 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1118 if (ifa_flags & IFA_F_SECONDARY) {
1119 ifa_flags &= ~IFA_F_SECONDARY;
1120 if (ifa->ifa_family == AF_INET6)
1121 fprintf(fp, "temporary ");
1122 else
1123 fprintf(fp, "secondary ");
1124 }
1125 if (ifa_flags & IFA_F_TENTATIVE) {
1126 ifa_flags &= ~IFA_F_TENTATIVE;
1127 fprintf(fp, "tentative ");
1128 }
1129 if (ifa_flags & IFA_F_DEPRECATED) {
1130 ifa_flags &= ~IFA_F_DEPRECATED;
1131 deprecated = 1;
1132 fprintf(fp, "deprecated ");
1133 }
1134 if (ifa_flags & IFA_F_HOMEADDRESS) {
1135 ifa_flags &= ~IFA_F_HOMEADDRESS;
1136 fprintf(fp, "home ");
1137 }
1138 if (ifa_flags & IFA_F_NODAD) {
1139 ifa_flags &= ~IFA_F_NODAD;
1140 fprintf(fp, "nodad ");
1141 }
1142 if (ifa_flags & IFA_F_MANAGETEMPADDR) {
1143 ifa_flags &= ~IFA_F_MANAGETEMPADDR;
1144 fprintf(fp, "mngtmpaddr ");
1145 }
1146 if (ifa_flags & IFA_F_NOPREFIXROUTE) {
1147 ifa_flags &= ~IFA_F_NOPREFIXROUTE;
1148 fprintf(fp, "noprefixroute ");
1149 }
1150 if (ifa_flags & IFA_F_MCAUTOJOIN) {
1151 ifa_flags &= ~IFA_F_MCAUTOJOIN;
1152 fprintf(fp, "autojoin ");
1153 }
1154 if (!(ifa_flags & IFA_F_PERMANENT)) {
1155 fprintf(fp, "dynamic ");
1156 } else
1157 ifa_flags &= ~IFA_F_PERMANENT;
1158 if (ifa_flags & IFA_F_DADFAILED) {
1159 ifa_flags &= ~IFA_F_DADFAILED;
1160 fprintf(fp, "dadfailed ");
1161 }
1162 if (ifa_flags)
1163 fprintf(fp, "flags %02x ", ifa_flags);
1164 if (rta_tb[IFA_LABEL])
1165 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
1166 if (rta_tb[IFA_CACHEINFO]) {
1167 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1168
1169 fprintf(fp, "%s", _SL_);
1170 fprintf(fp, " valid_lft ");
1171 if (ci->ifa_valid == INFINITY_LIFE_TIME)
1172 fprintf(fp, "forever");
1173 else
1174 fprintf(fp, "%usec", ci->ifa_valid);
1175 fprintf(fp, " preferred_lft ");
1176 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
1177 fprintf(fp, "forever");
1178 else {
1179 if (deprecated)
1180 fprintf(fp, "%dsec", ci->ifa_prefered);
1181 else
1182 fprintf(fp, "%usec", ci->ifa_prefered);
1183 }
1184 }
1185 fprintf(fp, "\n");
1186 brief_exit:
1187 fflush(fp);
1188 return 0;
1189 }
1190
1191 struct nlmsg_list {
1192 struct nlmsg_list *next;
1193 struct nlmsghdr h;
1194 };
1195
1196 struct nlmsg_chain {
1197 struct nlmsg_list *head;
1198 struct nlmsg_list *tail;
1199 };
1200
1201 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1202 struct nlmsg_list *ainfo, FILE *fp)
1203 {
1204 for ( ; ainfo ; ainfo = ainfo->next) {
1205 struct nlmsghdr *n = &ainfo->h;
1206 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1207
1208 if (n->nlmsg_type != RTM_NEWADDR)
1209 continue;
1210
1211 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
1212 return -1;
1213
1214 if (ifa->ifa_index != ifi->ifi_index ||
1215 (filter.family && filter.family != ifa->ifa_family))
1216 continue;
1217
1218 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1219 continue;
1220
1221 print_addrinfo(NULL, n, fp);
1222 }
1223 if (brief) {
1224 fprintf(fp, "\n");
1225 fflush(fp);
1226 }
1227 return 0;
1228 }
1229
1230
1231 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1232 void *arg)
1233 {
1234 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1235 struct nlmsg_list *h;
1236
1237 h = malloc(n->nlmsg_len+sizeof(void *));
1238 if (h == NULL)
1239 return -1;
1240
1241 memcpy(&h->h, n, n->nlmsg_len);
1242 h->next = NULL;
1243
1244 if (lchain->tail)
1245 lchain->tail->next = h;
1246 else
1247 lchain->head = h;
1248 lchain->tail = h;
1249
1250 ll_remember_index(who, n, NULL);
1251 return 0;
1252 }
1253
1254 static __u32 ipadd_dump_magic = 0x47361222;
1255
1256 static int ipadd_save_prep(void)
1257 {
1258 int ret;
1259
1260 if (isatty(STDOUT_FILENO)) {
1261 fprintf(stderr, "Not sending a binary stream to stdout\n");
1262 return -1;
1263 }
1264
1265 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1266 if (ret != sizeof(ipadd_dump_magic)) {
1267 fprintf(stderr, "Can't write magic to dump file\n");
1268 return -1;
1269 }
1270
1271 return 0;
1272 }
1273
1274 static int ipadd_dump_check_magic(void)
1275 {
1276 int ret;
1277 __u32 magic = 0;
1278
1279 if (isatty(STDIN_FILENO)) {
1280 fprintf(stderr, "Can't restore address dump from a terminal\n");
1281 return -1;
1282 }
1283
1284 ret = fread(&magic, sizeof(magic), 1, stdin);
1285 if (magic != ipadd_dump_magic) {
1286 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1287 return -1;
1288 }
1289
1290 return 0;
1291 }
1292
1293 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1294 void *arg)
1295 {
1296 int ret;
1297
1298 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1299 if ((ret > 0) && (ret != n->nlmsg_len)) {
1300 fprintf(stderr, "Short write while saving nlmsg\n");
1301 ret = -EIO;
1302 }
1303
1304 return ret == n->nlmsg_len ? 0 : ret;
1305 }
1306
1307 static int show_handler(const struct sockaddr_nl *nl,
1308 struct rtnl_ctrl_data *ctrl,
1309 struct nlmsghdr *n, void *arg)
1310 {
1311 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1312
1313 printf("if%d:\n", ifa->ifa_index);
1314 print_addrinfo(NULL, n, stdout);
1315 return 0;
1316 }
1317
1318 static int ipaddr_showdump(void)
1319 {
1320 if (ipadd_dump_check_magic())
1321 exit(-1);
1322
1323 exit(rtnl_from_file(stdin, &show_handler, NULL));
1324 }
1325
1326 static int restore_handler(const struct sockaddr_nl *nl,
1327 struct rtnl_ctrl_data *ctrl,
1328 struct nlmsghdr *n, void *arg)
1329 {
1330 int ret;
1331
1332 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1333
1334 ll_init_map(&rth);
1335
1336 ret = rtnl_talk(&rth, n, n, sizeof(*n));
1337 if ((ret < 0) && (errno == EEXIST))
1338 ret = 0;
1339
1340 return ret;
1341 }
1342
1343 static int ipaddr_restore(void)
1344 {
1345 if (ipadd_dump_check_magic())
1346 exit(-1);
1347
1348 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1349 }
1350
1351 static void free_nlmsg_chain(struct nlmsg_chain *info)
1352 {
1353 struct nlmsg_list *l, *n;
1354
1355 for (l = info->head; l; l = n) {
1356 n = l->next;
1357 free(l);
1358 }
1359 }
1360
1361 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1362 {
1363 struct nlmsg_list *l, **lp;
1364
1365 lp = &linfo->head;
1366 while ((l = *lp) != NULL) {
1367 int ok = 0;
1368 int missing_net_address = 1;
1369 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1370 struct nlmsg_list *a;
1371
1372 for (a = ainfo->head; a; a = a->next) {
1373 struct nlmsghdr *n = &a->h;
1374 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1375 struct rtattr *tb[IFA_MAX + 1];
1376 unsigned int ifa_flags;
1377
1378 if (ifa->ifa_index != ifi->ifi_index)
1379 continue;
1380 missing_net_address = 0;
1381 if (filter.family && filter.family != ifa->ifa_family)
1382 continue;
1383 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1384 continue;
1385
1386 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1387 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1388
1389 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1390 continue;
1391 if (filter.pfx.family || filter.label) {
1392 if (!tb[IFA_LOCAL])
1393 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1394
1395 if (filter.pfx.family && tb[IFA_LOCAL]) {
1396 inet_prefix dst = {
1397 .family = ifa->ifa_family
1398 };
1399
1400 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
1401 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
1402 continue;
1403 }
1404 if (filter.label) {
1405 SPRINT_BUF(b1);
1406 const char *label;
1407
1408 if (tb[IFA_LABEL])
1409 label = RTA_DATA(tb[IFA_LABEL]);
1410 else
1411 label = ll_idx_n2a(ifa->ifa_index, b1);
1412 if (fnmatch(filter.label, label, 0) != 0)
1413 continue;
1414 }
1415 }
1416
1417 ok = 1;
1418 break;
1419 }
1420 if (missing_net_address &&
1421 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1422 ok = 1;
1423 if (!ok) {
1424 *lp = l->next;
1425 free(l);
1426 } else
1427 lp = &l->next;
1428 }
1429 }
1430
1431 static int ipaddr_flush(void)
1432 {
1433 int round = 0;
1434 char flushb[4096-512];
1435
1436 filter.flushb = flushb;
1437 filter.flushp = 0;
1438 filter.flushe = sizeof(flushb);
1439
1440 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1441 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1442 perror("Cannot send dump request");
1443 exit(1);
1444 }
1445 filter.flushed = 0;
1446 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1447 stdout, NLM_F_DUMP_INTR) < 0) {
1448 fprintf(stderr, "Flush terminated\n");
1449 exit(1);
1450 }
1451 if (filter.flushed == 0) {
1452 flush_done:
1453 if (show_stats) {
1454 if (round == 0)
1455 printf("Nothing to flush.\n");
1456 else
1457 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1458 }
1459 fflush(stdout);
1460 return 0;
1461 }
1462 round++;
1463 if (flush_update() < 0)
1464 return 1;
1465
1466 if (show_stats) {
1467 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1468 fflush(stdout);
1469 }
1470
1471 /* If we are flushing, and specifying primary, then we
1472 * want to flush only a single round. Otherwise, we'll
1473 * start flushing secondaries that were promoted to
1474 * primaries.
1475 */
1476 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1477 goto flush_done;
1478 }
1479 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1480 fflush(stderr);
1481 return 1;
1482 }
1483
1484 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1485 {
1486 int err;
1487
1488 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1489 if (err)
1490 return err;
1491
1492 if (filter.master) {
1493 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1494 if (err)
1495 return err;
1496 }
1497
1498 if (filter.kind) {
1499 struct rtattr *linkinfo;
1500
1501 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1502
1503 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1504 strlen(filter.kind));
1505 if (err)
1506 return err;
1507
1508 addattr_nest_end(nlh, linkinfo);
1509 }
1510
1511 return 0;
1512 }
1513
1514 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1515 {
1516 struct nlmsg_chain linfo = { NULL, NULL};
1517 struct nlmsg_chain ainfo = { NULL, NULL};
1518 struct nlmsg_list *l;
1519 char *filter_dev = NULL;
1520 int no_link = 0;
1521
1522 ipaddr_reset_filter(oneline, 0);
1523 filter.showqueue = 1;
1524 filter.family = preferred_family;
1525 filter.group = -1;
1526
1527 if (action == IPADD_FLUSH) {
1528 if (argc <= 0) {
1529 fprintf(stderr, "Flush requires arguments.\n");
1530
1531 return -1;
1532 }
1533 if (filter.family == AF_PACKET) {
1534 fprintf(stderr, "Cannot flush link addresses.\n");
1535 return -1;
1536 }
1537 }
1538
1539 while (argc > 0) {
1540 if (strcmp(*argv, "to") == 0) {
1541 NEXT_ARG();
1542 get_prefix(&filter.pfx, *argv, filter.family);
1543 if (filter.family == AF_UNSPEC)
1544 filter.family = filter.pfx.family;
1545 } else if (strcmp(*argv, "scope") == 0) {
1546 unsigned int scope = 0;
1547
1548 NEXT_ARG();
1549 filter.scopemask = -1;
1550 if (rtnl_rtscope_a2n(&scope, *argv)) {
1551 if (strcmp(*argv, "all") != 0)
1552 invarg("invalid \"scope\"\n", *argv);
1553 scope = RT_SCOPE_NOWHERE;
1554 filter.scopemask = 0;
1555 }
1556 filter.scope = scope;
1557 } else if (strcmp(*argv, "up") == 0) {
1558 filter.up = 1;
1559 } else if (strcmp(*argv, "dynamic") == 0) {
1560 filter.flags &= ~IFA_F_PERMANENT;
1561 filter.flagmask |= IFA_F_PERMANENT;
1562 } else if (strcmp(*argv, "permanent") == 0) {
1563 filter.flags |= IFA_F_PERMANENT;
1564 filter.flagmask |= IFA_F_PERMANENT;
1565 } else if (strcmp(*argv, "secondary") == 0 ||
1566 strcmp(*argv, "temporary") == 0) {
1567 filter.flags |= IFA_F_SECONDARY;
1568 filter.flagmask |= IFA_F_SECONDARY;
1569 } else if (strcmp(*argv, "primary") == 0) {
1570 filter.flags &= ~IFA_F_SECONDARY;
1571 filter.flagmask |= IFA_F_SECONDARY;
1572 } else if (strcmp(*argv, "tentative") == 0) {
1573 filter.flags |= IFA_F_TENTATIVE;
1574 filter.flagmask |= IFA_F_TENTATIVE;
1575 } else if (strcmp(*argv, "-tentative") == 0) {
1576 filter.flags &= ~IFA_F_TENTATIVE;
1577 filter.flagmask |= IFA_F_TENTATIVE;
1578 } else if (strcmp(*argv, "deprecated") == 0) {
1579 filter.flags |= IFA_F_DEPRECATED;
1580 filter.flagmask |= IFA_F_DEPRECATED;
1581 } else if (strcmp(*argv, "-deprecated") == 0) {
1582 filter.flags &= ~IFA_F_DEPRECATED;
1583 filter.flagmask |= IFA_F_DEPRECATED;
1584 } else if (strcmp(*argv, "home") == 0) {
1585 filter.flags |= IFA_F_HOMEADDRESS;
1586 filter.flagmask |= IFA_F_HOMEADDRESS;
1587 } else if (strcmp(*argv, "nodad") == 0) {
1588 filter.flags |= IFA_F_NODAD;
1589 filter.flagmask |= IFA_F_NODAD;
1590 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
1591 filter.flags |= IFA_F_MANAGETEMPADDR;
1592 filter.flagmask |= IFA_F_MANAGETEMPADDR;
1593 } else if (strcmp(*argv, "noprefixroute") == 0) {
1594 filter.flags |= IFA_F_NOPREFIXROUTE;
1595 filter.flagmask |= IFA_F_NOPREFIXROUTE;
1596 } else if (strcmp(*argv, "autojoin") == 0) {
1597 filter.flags |= IFA_F_MCAUTOJOIN;
1598 filter.flagmask |= IFA_F_MCAUTOJOIN;
1599 } else if (strcmp(*argv, "dadfailed") == 0) {
1600 filter.flags |= IFA_F_DADFAILED;
1601 filter.flagmask |= IFA_F_DADFAILED;
1602 } else if (strcmp(*argv, "-dadfailed") == 0) {
1603 filter.flags &= ~IFA_F_DADFAILED;
1604 filter.flagmask |= IFA_F_DADFAILED;
1605 } else if (strcmp(*argv, "label") == 0) {
1606 NEXT_ARG();
1607 filter.label = *argv;
1608 } else if (strcmp(*argv, "group") == 0) {
1609 NEXT_ARG();
1610 if (rtnl_group_a2n(&filter.group, *argv))
1611 invarg("Invalid \"group\" value\n", *argv);
1612 } else if (strcmp(*argv, "master") == 0) {
1613 int ifindex;
1614
1615 NEXT_ARG();
1616 ifindex = ll_name_to_index(*argv);
1617 if (!ifindex)
1618 invarg("Device does not exist\n", *argv);
1619 filter.master = ifindex;
1620 } else if (strcmp(*argv, "vrf") == 0) {
1621 int ifindex;
1622
1623 NEXT_ARG();
1624 ifindex = ll_name_to_index(*argv);
1625 if (!ifindex)
1626 invarg("Not a valid VRF name\n", *argv);
1627 if (!name_is_vrf(*argv))
1628 invarg("Not a valid VRF name\n", *argv);
1629 filter.master = ifindex;
1630 } else if (strcmp(*argv, "type") == 0) {
1631 int soff;
1632
1633 NEXT_ARG();
1634 soff = strlen(*argv) - strlen("_slave");
1635 if (!strcmp(*argv + soff, "_slave")) {
1636 (*argv)[soff] = '\0';
1637 filter.slave_kind = *argv;
1638 } else {
1639 filter.kind = *argv;
1640 }
1641 } else {
1642 if (strcmp(*argv, "dev") == 0) {
1643 NEXT_ARG();
1644 } else if (matches(*argv, "help") == 0)
1645 usage();
1646 if (filter_dev)
1647 duparg2("dev", *argv);
1648 filter_dev = *argv;
1649 }
1650 argv++; argc--;
1651 }
1652
1653 if (filter_dev) {
1654 filter.ifindex = ll_name_to_index(filter_dev);
1655 if (filter.ifindex <= 0) {
1656 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1657 return -1;
1658 }
1659 }
1660
1661 if (action == IPADD_FLUSH)
1662 return ipaddr_flush();
1663
1664 if (action == IPADD_SAVE) {
1665 if (ipadd_save_prep())
1666 exit(1);
1667
1668 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1669 perror("Cannot send dump request");
1670 exit(1);
1671 }
1672
1673 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1674 fprintf(stderr, "Save terminated\n");
1675 exit(1);
1676 }
1677
1678 exit(0);
1679 }
1680
1681 /*
1682 * If only filter_dev present and none of the other
1683 * link filters are present, use RTM_GETLINK to get
1684 * the link device
1685 */
1686 if (filter_dev && filter.group == -1 && do_link == 1) {
1687 if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) {
1688 perror("Cannot send link get request");
1689 exit(1);
1690 }
1691 exit(0);
1692 }
1693
1694 if (rtnl_wilddump_req_filter_fn(&rth, preferred_family, RTM_GETLINK,
1695 iplink_filter_req) < 0) {
1696 perror("Cannot send dump request");
1697 exit(1);
1698 }
1699
1700 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1701 fprintf(stderr, "Dump terminated\n");
1702 exit(1);
1703 }
1704
1705 if (filter.family != AF_PACKET) {
1706 if (filter.oneline)
1707 no_link = 1;
1708
1709 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1710 perror("Cannot send dump request");
1711 exit(1);
1712 }
1713
1714 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
1715 fprintf(stderr, "Dump terminated\n");
1716 exit(1);
1717 }
1718
1719 ipaddr_filter(&linfo, &ainfo);
1720 }
1721
1722 for (l = linfo.head; l; l = l->next) {
1723 int res = 0;
1724 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1725
1726 if (brief) {
1727 if (print_linkinfo_brief(NULL, &l->h, stdout) == 0)
1728 if (filter.family != AF_PACKET)
1729 print_selected_addrinfo(ifi,
1730 ainfo.head,
1731 stdout);
1732 } else if (no_link ||
1733 (res = print_linkinfo(NULL, &l->h, stdout)) >= 0) {
1734 if (filter.family != AF_PACKET)
1735 print_selected_addrinfo(ifi,
1736 ainfo.head, stdout);
1737 if (res > 0 && !do_link && show_stats)
1738 print_link_stats(stdout, &l->h);
1739 }
1740 }
1741 fflush(stdout);
1742
1743 free_nlmsg_chain(&ainfo);
1744 free_nlmsg_chain(&linfo);
1745
1746 return 0;
1747 }
1748
1749 static void
1750 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
1751 {
1752 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
1753 struct rtattr *i, *vf[IFLA_VF_MAX+1];
1754 struct ifla_vf_rate *vf_rate;
1755 int rem;
1756
1757 rem = RTA_PAYLOAD(vflist);
1758
1759 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1760 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
1761 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
1762 if (vf_rate->vf == vfnum) {
1763 *min = vf_rate->min_tx_rate;
1764 *max = vf_rate->max_tx_rate;
1765 return;
1766 }
1767 }
1768 fprintf(stderr, "Cannot find VF %d\n", vfnum);
1769 exit(1);
1770 }
1771
1772 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, int idx)
1773 {
1774 struct nlmsg_chain linfo = { NULL, NULL};
1775 struct rtattr *tb[IFLA_MAX+1];
1776 struct ifinfomsg *ifi;
1777 struct nlmsg_list *l;
1778 struct nlmsghdr *n;
1779 int len;
1780
1781 if (rtnl_wilddump_request(&rth, AF_UNSPEC, RTM_GETLINK) < 0) {
1782 perror("Cannot send dump request");
1783 exit(1);
1784 }
1785 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1786 fprintf(stderr, "Dump terminated\n");
1787 exit(1);
1788 }
1789 for (l = linfo.head; l; l = l->next) {
1790 n = &l->h;
1791 ifi = NLMSG_DATA(n);
1792
1793 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
1794 if (len < 0 || (idx && idx != ifi->ifi_index))
1795 continue;
1796
1797 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
1798
1799 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
1800 ipaddr_loop_each_vf(tb, vfnum, min, max);
1801 return;
1802 }
1803 }
1804 }
1805
1806 int ipaddr_list_link(int argc, char **argv)
1807 {
1808 preferred_family = AF_PACKET;
1809 do_link = 1;
1810 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
1811 }
1812
1813 void ipaddr_reset_filter(int oneline, int ifindex)
1814 {
1815 memset(&filter, 0, sizeof(filter));
1816 filter.oneline = oneline;
1817 filter.ifindex = ifindex;
1818 }
1819
1820 static int default_scope(inet_prefix *lcl)
1821 {
1822 if (lcl->family == AF_INET) {
1823 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
1824 return RT_SCOPE_HOST;
1825 }
1826 return 0;
1827 }
1828
1829 static bool ipaddr_is_multicast(inet_prefix *a)
1830 {
1831 if (a->family == AF_INET)
1832 return IN_MULTICAST(ntohl(a->data[0]));
1833 else if (a->family == AF_INET6)
1834 return IN6_IS_ADDR_MULTICAST(a->data);
1835 else
1836 return false;
1837 }
1838
1839 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
1840 {
1841 struct {
1842 struct nlmsghdr n;
1843 struct ifaddrmsg ifa;
1844 char buf[256];
1845 } req = {
1846 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
1847 .n.nlmsg_flags = NLM_F_REQUEST | flags,
1848 .n.nlmsg_type = cmd,
1849 .ifa.ifa_family = preferred_family,
1850 };
1851 char *d = NULL;
1852 char *l = NULL;
1853 char *lcl_arg = NULL;
1854 char *valid_lftp = NULL;
1855 char *preferred_lftp = NULL;
1856 inet_prefix lcl;
1857 inet_prefix peer;
1858 int local_len = 0;
1859 int peer_len = 0;
1860 int brd_len = 0;
1861 int any_len = 0;
1862 int scoped = 0;
1863 __u32 preferred_lft = INFINITY_LIFE_TIME;
1864 __u32 valid_lft = INFINITY_LIFE_TIME;
1865 unsigned int ifa_flags = 0;
1866
1867 while (argc > 0) {
1868 if (strcmp(*argv, "peer") == 0 ||
1869 strcmp(*argv, "remote") == 0) {
1870 NEXT_ARG();
1871
1872 if (peer_len)
1873 duparg("peer", *argv);
1874 get_prefix(&peer, *argv, req.ifa.ifa_family);
1875 peer_len = peer.bytelen;
1876 if (req.ifa.ifa_family == AF_UNSPEC)
1877 req.ifa.ifa_family = peer.family;
1878 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1879 req.ifa.ifa_prefixlen = peer.bitlen;
1880 } else if (matches(*argv, "broadcast") == 0 ||
1881 strcmp(*argv, "brd") == 0) {
1882 inet_prefix addr;
1883
1884 NEXT_ARG();
1885 if (brd_len)
1886 duparg("broadcast", *argv);
1887 if (strcmp(*argv, "+") == 0)
1888 brd_len = -1;
1889 else if (strcmp(*argv, "-") == 0)
1890 brd_len = -2;
1891 else {
1892 get_addr(&addr, *argv, req.ifa.ifa_family);
1893 if (req.ifa.ifa_family == AF_UNSPEC)
1894 req.ifa.ifa_family = addr.family;
1895 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1896 brd_len = addr.bytelen;
1897 }
1898 } else if (strcmp(*argv, "anycast") == 0) {
1899 inet_prefix addr;
1900
1901 NEXT_ARG();
1902 if (any_len)
1903 duparg("anycast", *argv);
1904 get_addr(&addr, *argv, req.ifa.ifa_family);
1905 if (req.ifa.ifa_family == AF_UNSPEC)
1906 req.ifa.ifa_family = addr.family;
1907 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1908 any_len = addr.bytelen;
1909 } else if (strcmp(*argv, "scope") == 0) {
1910 unsigned int scope = 0;
1911
1912 NEXT_ARG();
1913 if (rtnl_rtscope_a2n(&scope, *argv))
1914 invarg("invalid scope value.", *argv);
1915 req.ifa.ifa_scope = scope;
1916 scoped = 1;
1917 } else if (strcmp(*argv, "dev") == 0) {
1918 NEXT_ARG();
1919 d = *argv;
1920 } else if (strcmp(*argv, "label") == 0) {
1921 NEXT_ARG();
1922 l = *argv;
1923 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1924 } else if (matches(*argv, "valid_lft") == 0) {
1925 if (valid_lftp)
1926 duparg("valid_lft", *argv);
1927 NEXT_ARG();
1928 valid_lftp = *argv;
1929 if (set_lifetime(&valid_lft, *argv))
1930 invarg("valid_lft value", *argv);
1931 } else if (matches(*argv, "preferred_lft") == 0) {
1932 if (preferred_lftp)
1933 duparg("preferred_lft", *argv);
1934 NEXT_ARG();
1935 preferred_lftp = *argv;
1936 if (set_lifetime(&preferred_lft, *argv))
1937 invarg("preferred_lft value", *argv);
1938 } else if (strcmp(*argv, "home") == 0) {
1939 ifa_flags |= IFA_F_HOMEADDRESS;
1940 } else if (strcmp(*argv, "nodad") == 0) {
1941 ifa_flags |= IFA_F_NODAD;
1942 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
1943 ifa_flags |= IFA_F_MANAGETEMPADDR;
1944 } else if (strcmp(*argv, "noprefixroute") == 0) {
1945 ifa_flags |= IFA_F_NOPREFIXROUTE;
1946 } else if (strcmp(*argv, "autojoin") == 0) {
1947 ifa_flags |= IFA_F_MCAUTOJOIN;
1948 } else {
1949 if (strcmp(*argv, "local") == 0) {
1950 NEXT_ARG();
1951 }
1952 if (matches(*argv, "help") == 0)
1953 usage();
1954 if (local_len)
1955 duparg2("local", *argv);
1956 lcl_arg = *argv;
1957 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1958 if (req.ifa.ifa_family == AF_UNSPEC)
1959 req.ifa.ifa_family = lcl.family;
1960 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1961 local_len = lcl.bytelen;
1962 }
1963 argc--; argv++;
1964 }
1965 if (ifa_flags <= 0xff)
1966 req.ifa.ifa_flags = ifa_flags;
1967 else
1968 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
1969
1970 if (d == NULL) {
1971 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1972 return -1;
1973 }
1974 if (l && matches(d, l) != 0) {
1975 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1976 return -1;
1977 }
1978
1979 if (peer_len == 0 && local_len) {
1980 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1981 fprintf(stderr,
1982 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1983 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1984 " This special behaviour is likely to disappear in further releases,\n" \
1985 " fix your scripts!\n", lcl_arg, local_len*8);
1986 } else {
1987 peer = lcl;
1988 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1989 }
1990 }
1991 if (req.ifa.ifa_prefixlen == 0)
1992 req.ifa.ifa_prefixlen = lcl.bitlen;
1993
1994 if (brd_len < 0 && cmd != RTM_DELADDR) {
1995 inet_prefix brd;
1996 int i;
1997
1998 if (req.ifa.ifa_family != AF_INET) {
1999 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2000 return -1;
2001 }
2002 brd = peer;
2003 if (brd.bitlen <= 30) {
2004 for (i = 31; i >= brd.bitlen; i--) {
2005 if (brd_len == -1)
2006 brd.data[0] |= htonl(1<<(31-i));
2007 else
2008 brd.data[0] &= ~htonl(1<<(31-i));
2009 }
2010 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2011 brd_len = brd.bytelen;
2012 }
2013 }
2014 if (!scoped && cmd != RTM_DELADDR)
2015 req.ifa.ifa_scope = default_scope(&lcl);
2016
2017 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
2018 fprintf(stderr, "Cannot find device \"%s\"\n", d);
2019 return -1;
2020 }
2021
2022 if (valid_lftp || preferred_lftp) {
2023 struct ifa_cacheinfo cinfo = {};
2024
2025 if (!valid_lft) {
2026 fprintf(stderr, "valid_lft is zero\n");
2027 return -1;
2028 }
2029 if (valid_lft < preferred_lft) {
2030 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2031 return -1;
2032 }
2033
2034 cinfo.ifa_prefered = preferred_lft;
2035 cinfo.ifa_valid = valid_lft;
2036 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2037 sizeof(cinfo));
2038 }
2039
2040 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2041 fprintf(stderr, "autojoin needs multicast address\n");
2042 return -1;
2043 }
2044
2045 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
2046 return -2;
2047
2048 return 0;
2049 }
2050
2051 int do_ipaddr(int argc, char **argv)
2052 {
2053 if (argc < 1)
2054 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2055 if (matches(*argv, "add") == 0)
2056 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2057 if (matches(*argv, "change") == 0 ||
2058 strcmp(*argv, "chg") == 0)
2059 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2060 if (matches(*argv, "replace") == 0)
2061 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2062 if (matches(*argv, "delete") == 0)
2063 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2064 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2065 || matches(*argv, "lst") == 0)
2066 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2067 if (matches(*argv, "flush") == 0)
2068 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2069 if (matches(*argv, "save") == 0)
2070 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2071 if (matches(*argv, "showdump") == 0)
2072 return ipaddr_showdump();
2073 if (matches(*argv, "restore") == 0)
2074 return ipaddr_restore();
2075 if (matches(*argv, "help") == 0)
2076 usage();
2077 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2078 exit(-1);
2079 }
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