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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 | macsec }\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_GSO_MAX_SIZE])
905 fprintf(fp, "gso_max_size %u ",
906 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
907
908 if (tb[IFLA_GSO_MAX_SEGS])
909 fprintf(fp, "gso_max_segs %u ",
910 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
911
912 if (tb[IFLA_PHYS_PORT_NAME])
913 fprintf(fp, "portname %s ",
914 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
915
916 if (tb[IFLA_PHYS_PORT_ID]) {
917 SPRINT_BUF(b1);
918 fprintf(fp, "portid %s ",
919 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
920 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
921 b1, sizeof(b1)));
922 }
923
924 if (tb[IFLA_PHYS_SWITCH_ID]) {
925 SPRINT_BUF(b1);
926 fprintf(fp, "switchid %s ",
927 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
928 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
929 b1, sizeof(b1)));
930 }
931 }
932
933
934 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
935 fprintf(fp, "%s alias %s", _SL_,
936 rta_getattr_str(tb[IFLA_IFALIAS]));
937 }
938
939 if (do_link && show_stats) {
940 fprintf(fp, "%s", _SL_);
941 __print_link_stats(fp, tb);
942 }
943
944 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
945 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
946 int rem = RTA_PAYLOAD(vflist);
947
948 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
949 print_vfinfo(fp, i);
950 }
951
952 fprintf(fp, "\n");
953 fflush(fp);
954 return 1;
955 }
956
957 static int flush_update(void)
958 {
959
960 /*
961 * Note that the kernel may delete multiple addresses for one
962 * delete request (e.g. if ipv4 address promotion is disabled).
963 * Since a flush operation is really a series of delete requests
964 * its possible that we may request an address delete that has
965 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
966 * errors returned from a flush request
967 */
968 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
969 (errno != EADDRNOTAVAIL)) {
970 perror("Failed to send flush request");
971 return -1;
972 }
973 filter.flushp = 0;
974 return 0;
975 }
976
977 static int set_lifetime(unsigned int *lifetime, char *argv)
978 {
979 if (strcmp(argv, "forever") == 0)
980 *lifetime = INFINITY_LIFE_TIME;
981 else if (get_u32(lifetime, argv, 0))
982 return -1;
983
984 return 0;
985 }
986
987 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
988 struct rtattr *ifa_flags_attr)
989 {
990 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
991 ifa->ifa_flags;
992 }
993
994 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
995 void *arg)
996 {
997 FILE *fp = arg;
998 struct ifaddrmsg *ifa = NLMSG_DATA(n);
999 int len = n->nlmsg_len;
1000 int deprecated = 0;
1001 /* Use local copy of ifa_flags to not interfere with filtering code */
1002 unsigned int ifa_flags;
1003 struct rtattr *rta_tb[IFA_MAX+1];
1004
1005 SPRINT_BUF(b1);
1006
1007 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1008 return 0;
1009 len -= NLMSG_LENGTH(sizeof(*ifa));
1010 if (len < 0) {
1011 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1012 return -1;
1013 }
1014
1015 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1016 return 0;
1017
1018 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1019 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1020
1021 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1022
1023 if (!rta_tb[IFA_LOCAL])
1024 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1025 if (!rta_tb[IFA_ADDRESS])
1026 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1027
1028 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1029 return 0;
1030 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1031 return 0;
1032 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1033 return 0;
1034 if (filter.label) {
1035 SPRINT_BUF(b1);
1036 const char *label;
1037
1038 if (rta_tb[IFA_LABEL])
1039 label = RTA_DATA(rta_tb[IFA_LABEL]);
1040 else
1041 label = ll_idx_n2a(ifa->ifa_index, b1);
1042 if (fnmatch(filter.label, label, 0) != 0)
1043 return 0;
1044 }
1045 if (filter.pfx.family) {
1046 if (rta_tb[IFA_LOCAL]) {
1047 inet_prefix dst = { .family = ifa->ifa_family };
1048
1049 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
1050 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
1051 return 0;
1052 }
1053 }
1054
1055 if (filter.family && filter.family != ifa->ifa_family)
1056 return 0;
1057
1058 if (filter.flushb) {
1059 struct nlmsghdr *fn;
1060
1061 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1062 if (flush_update())
1063 return -1;
1064 }
1065 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1066 memcpy(fn, n, n->nlmsg_len);
1067 fn->nlmsg_type = RTM_DELADDR;
1068 fn->nlmsg_flags = NLM_F_REQUEST;
1069 fn->nlmsg_seq = ++rth.seq;
1070 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1071 filter.flushed++;
1072 if (show_stats < 2)
1073 return 0;
1074 }
1075
1076 if (n->nlmsg_type == RTM_DELADDR)
1077 fprintf(fp, "Deleted ");
1078
1079 if (!brief) {
1080 if (filter.oneline || filter.flushb)
1081 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
1082 if (ifa->ifa_family == AF_INET)
1083 fprintf(fp, " inet ");
1084 else if (ifa->ifa_family == AF_INET6)
1085 fprintf(fp, " inet6 ");
1086 else if (ifa->ifa_family == AF_DECnet)
1087 fprintf(fp, " dnet ");
1088 else if (ifa->ifa_family == AF_IPX)
1089 fprintf(fp, " ipx ");
1090 else
1091 fprintf(fp, " family %d ", ifa->ifa_family);
1092 }
1093
1094 if (rta_tb[IFA_LOCAL]) {
1095 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s",
1096 format_host_rta(ifa->ifa_family,
1097 rta_tb[IFA_LOCAL]));
1098 if (rta_tb[IFA_ADDRESS] &&
1099 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1100 RTA_DATA(rta_tb[IFA_LOCAL]),
1101 ifa->ifa_family == AF_INET ? 4 : 16)) {
1102 fprintf(fp, " peer ");
1103 color_fprintf(fp, ifa_family_color(ifa->ifa_family),
1104 "%s", format_host_rta(ifa->ifa_family,
1105 rta_tb[IFA_ADDRESS]));
1106 }
1107 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
1108 }
1109
1110 if (brief)
1111 goto brief_exit;
1112
1113 if (rta_tb[IFA_BROADCAST]) {
1114 fprintf(fp, "brd ");
1115 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ",
1116 format_host_rta(ifa->ifa_family,
1117 rta_tb[IFA_BROADCAST]));
1118 }
1119 if (rta_tb[IFA_ANYCAST]) {
1120 fprintf(fp, "any ");
1121 color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ",
1122 format_host_rta(ifa->ifa_family,
1123 rta_tb[IFA_ANYCAST]));
1124 }
1125 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1126 if (ifa_flags & IFA_F_SECONDARY) {
1127 ifa_flags &= ~IFA_F_SECONDARY;
1128 if (ifa->ifa_family == AF_INET6)
1129 fprintf(fp, "temporary ");
1130 else
1131 fprintf(fp, "secondary ");
1132 }
1133 if (ifa_flags & IFA_F_TENTATIVE) {
1134 ifa_flags &= ~IFA_F_TENTATIVE;
1135 fprintf(fp, "tentative ");
1136 }
1137 if (ifa_flags & IFA_F_DEPRECATED) {
1138 ifa_flags &= ~IFA_F_DEPRECATED;
1139 deprecated = 1;
1140 fprintf(fp, "deprecated ");
1141 }
1142 if (ifa_flags & IFA_F_HOMEADDRESS) {
1143 ifa_flags &= ~IFA_F_HOMEADDRESS;
1144 fprintf(fp, "home ");
1145 }
1146 if (ifa_flags & IFA_F_NODAD) {
1147 ifa_flags &= ~IFA_F_NODAD;
1148 fprintf(fp, "nodad ");
1149 }
1150 if (ifa_flags & IFA_F_MANAGETEMPADDR) {
1151 ifa_flags &= ~IFA_F_MANAGETEMPADDR;
1152 fprintf(fp, "mngtmpaddr ");
1153 }
1154 if (ifa_flags & IFA_F_NOPREFIXROUTE) {
1155 ifa_flags &= ~IFA_F_NOPREFIXROUTE;
1156 fprintf(fp, "noprefixroute ");
1157 }
1158 if (ifa_flags & IFA_F_MCAUTOJOIN) {
1159 ifa_flags &= ~IFA_F_MCAUTOJOIN;
1160 fprintf(fp, "autojoin ");
1161 }
1162 if (!(ifa_flags & IFA_F_PERMANENT)) {
1163 fprintf(fp, "dynamic ");
1164 } else
1165 ifa_flags &= ~IFA_F_PERMANENT;
1166 if (ifa_flags & IFA_F_DADFAILED) {
1167 ifa_flags &= ~IFA_F_DADFAILED;
1168 fprintf(fp, "dadfailed ");
1169 }
1170 if (ifa_flags)
1171 fprintf(fp, "flags %02x ", ifa_flags);
1172 if (rta_tb[IFA_LABEL])
1173 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
1174 if (rta_tb[IFA_CACHEINFO]) {
1175 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1176
1177 fprintf(fp, "%s", _SL_);
1178 fprintf(fp, " valid_lft ");
1179 if (ci->ifa_valid == INFINITY_LIFE_TIME)
1180 fprintf(fp, "forever");
1181 else
1182 fprintf(fp, "%usec", ci->ifa_valid);
1183 fprintf(fp, " preferred_lft ");
1184 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
1185 fprintf(fp, "forever");
1186 else {
1187 if (deprecated)
1188 fprintf(fp, "%dsec", ci->ifa_prefered);
1189 else
1190 fprintf(fp, "%usec", ci->ifa_prefered);
1191 }
1192 }
1193 fprintf(fp, "\n");
1194 brief_exit:
1195 fflush(fp);
1196 return 0;
1197 }
1198
1199 struct nlmsg_list {
1200 struct nlmsg_list *next;
1201 struct nlmsghdr h;
1202 };
1203
1204 struct nlmsg_chain {
1205 struct nlmsg_list *head;
1206 struct nlmsg_list *tail;
1207 };
1208
1209 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1210 struct nlmsg_list *ainfo, FILE *fp)
1211 {
1212 for ( ; ainfo ; ainfo = ainfo->next) {
1213 struct nlmsghdr *n = &ainfo->h;
1214 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1215
1216 if (n->nlmsg_type != RTM_NEWADDR)
1217 continue;
1218
1219 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
1220 return -1;
1221
1222 if (ifa->ifa_index != ifi->ifi_index ||
1223 (filter.family && filter.family != ifa->ifa_family))
1224 continue;
1225
1226 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1227 continue;
1228
1229 print_addrinfo(NULL, n, fp);
1230 }
1231 if (brief) {
1232 fprintf(fp, "\n");
1233 fflush(fp);
1234 }
1235 return 0;
1236 }
1237
1238
1239 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1240 void *arg)
1241 {
1242 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1243 struct nlmsg_list *h;
1244
1245 h = malloc(n->nlmsg_len+sizeof(void *));
1246 if (h == NULL)
1247 return -1;
1248
1249 memcpy(&h->h, n, n->nlmsg_len);
1250 h->next = NULL;
1251
1252 if (lchain->tail)
1253 lchain->tail->next = h;
1254 else
1255 lchain->head = h;
1256 lchain->tail = h;
1257
1258 ll_remember_index(who, n, NULL);
1259 return 0;
1260 }
1261
1262 static __u32 ipadd_dump_magic = 0x47361222;
1263
1264 static int ipadd_save_prep(void)
1265 {
1266 int ret;
1267
1268 if (isatty(STDOUT_FILENO)) {
1269 fprintf(stderr, "Not sending a binary stream to stdout\n");
1270 return -1;
1271 }
1272
1273 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1274 if (ret != sizeof(ipadd_dump_magic)) {
1275 fprintf(stderr, "Can't write magic to dump file\n");
1276 return -1;
1277 }
1278
1279 return 0;
1280 }
1281
1282 static int ipadd_dump_check_magic(void)
1283 {
1284 int ret;
1285 __u32 magic = 0;
1286
1287 if (isatty(STDIN_FILENO)) {
1288 fprintf(stderr, "Can't restore address dump from a terminal\n");
1289 return -1;
1290 }
1291
1292 ret = fread(&magic, sizeof(magic), 1, stdin);
1293 if (magic != ipadd_dump_magic) {
1294 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1295 return -1;
1296 }
1297
1298 return 0;
1299 }
1300
1301 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1302 void *arg)
1303 {
1304 int ret;
1305
1306 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1307 if ((ret > 0) && (ret != n->nlmsg_len)) {
1308 fprintf(stderr, "Short write while saving nlmsg\n");
1309 ret = -EIO;
1310 }
1311
1312 return ret == n->nlmsg_len ? 0 : ret;
1313 }
1314
1315 static int show_handler(const struct sockaddr_nl *nl,
1316 struct rtnl_ctrl_data *ctrl,
1317 struct nlmsghdr *n, void *arg)
1318 {
1319 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1320
1321 printf("if%d:\n", ifa->ifa_index);
1322 print_addrinfo(NULL, n, stdout);
1323 return 0;
1324 }
1325
1326 static int ipaddr_showdump(void)
1327 {
1328 if (ipadd_dump_check_magic())
1329 exit(-1);
1330
1331 exit(rtnl_from_file(stdin, &show_handler, NULL));
1332 }
1333
1334 static int restore_handler(const struct sockaddr_nl *nl,
1335 struct rtnl_ctrl_data *ctrl,
1336 struct nlmsghdr *n, void *arg)
1337 {
1338 int ret;
1339
1340 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1341
1342 ll_init_map(&rth);
1343
1344 ret = rtnl_talk(&rth, n, n, sizeof(*n));
1345 if ((ret < 0) && (errno == EEXIST))
1346 ret = 0;
1347
1348 return ret;
1349 }
1350
1351 static int ipaddr_restore(void)
1352 {
1353 if (ipadd_dump_check_magic())
1354 exit(-1);
1355
1356 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1357 }
1358
1359 static void free_nlmsg_chain(struct nlmsg_chain *info)
1360 {
1361 struct nlmsg_list *l, *n;
1362
1363 for (l = info->head; l; l = n) {
1364 n = l->next;
1365 free(l);
1366 }
1367 }
1368
1369 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1370 {
1371 struct nlmsg_list *l, **lp;
1372
1373 lp = &linfo->head;
1374 while ((l = *lp) != NULL) {
1375 int ok = 0;
1376 int missing_net_address = 1;
1377 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1378 struct nlmsg_list *a;
1379
1380 for (a = ainfo->head; a; a = a->next) {
1381 struct nlmsghdr *n = &a->h;
1382 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1383 struct rtattr *tb[IFA_MAX + 1];
1384 unsigned int ifa_flags;
1385
1386 if (ifa->ifa_index != ifi->ifi_index)
1387 continue;
1388 missing_net_address = 0;
1389 if (filter.family && filter.family != ifa->ifa_family)
1390 continue;
1391 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1392 continue;
1393
1394 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1395 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1396
1397 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1398 continue;
1399 if (filter.pfx.family || filter.label) {
1400 if (!tb[IFA_LOCAL])
1401 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1402
1403 if (filter.pfx.family && tb[IFA_LOCAL]) {
1404 inet_prefix dst = {
1405 .family = ifa->ifa_family
1406 };
1407
1408 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
1409 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
1410 continue;
1411 }
1412 if (filter.label) {
1413 SPRINT_BUF(b1);
1414 const char *label;
1415
1416 if (tb[IFA_LABEL])
1417 label = RTA_DATA(tb[IFA_LABEL]);
1418 else
1419 label = ll_idx_n2a(ifa->ifa_index, b1);
1420 if (fnmatch(filter.label, label, 0) != 0)
1421 continue;
1422 }
1423 }
1424
1425 ok = 1;
1426 break;
1427 }
1428 if (missing_net_address &&
1429 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1430 ok = 1;
1431 if (!ok) {
1432 *lp = l->next;
1433 free(l);
1434 } else
1435 lp = &l->next;
1436 }
1437 }
1438
1439 static int ipaddr_flush(void)
1440 {
1441 int round = 0;
1442 char flushb[4096-512];
1443
1444 filter.flushb = flushb;
1445 filter.flushp = 0;
1446 filter.flushe = sizeof(flushb);
1447
1448 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1449 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1450 perror("Cannot send dump request");
1451 exit(1);
1452 }
1453 filter.flushed = 0;
1454 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1455 stdout, NLM_F_DUMP_INTR) < 0) {
1456 fprintf(stderr, "Flush terminated\n");
1457 exit(1);
1458 }
1459 if (filter.flushed == 0) {
1460 flush_done:
1461 if (show_stats) {
1462 if (round == 0)
1463 printf("Nothing to flush.\n");
1464 else
1465 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1466 }
1467 fflush(stdout);
1468 return 0;
1469 }
1470 round++;
1471 if (flush_update() < 0)
1472 return 1;
1473
1474 if (show_stats) {
1475 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1476 fflush(stdout);
1477 }
1478
1479 /* If we are flushing, and specifying primary, then we
1480 * want to flush only a single round. Otherwise, we'll
1481 * start flushing secondaries that were promoted to
1482 * primaries.
1483 */
1484 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1485 goto flush_done;
1486 }
1487 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1488 fflush(stderr);
1489 return 1;
1490 }
1491
1492 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1493 {
1494 int err;
1495
1496 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1497 if (err)
1498 return err;
1499
1500 if (filter.master) {
1501 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1502 if (err)
1503 return err;
1504 }
1505
1506 if (filter.kind) {
1507 struct rtattr *linkinfo;
1508
1509 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1510
1511 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1512 strlen(filter.kind));
1513 if (err)
1514 return err;
1515
1516 addattr_nest_end(nlh, linkinfo);
1517 }
1518
1519 return 0;
1520 }
1521
1522 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1523 {
1524 struct nlmsg_chain linfo = { NULL, NULL};
1525 struct nlmsg_chain ainfo = { NULL, NULL};
1526 struct nlmsg_list *l;
1527 char *filter_dev = NULL;
1528 int no_link = 0;
1529
1530 ipaddr_reset_filter(oneline, 0);
1531 filter.showqueue = 1;
1532 filter.family = preferred_family;
1533 filter.group = -1;
1534
1535 if (action == IPADD_FLUSH) {
1536 if (argc <= 0) {
1537 fprintf(stderr, "Flush requires arguments.\n");
1538
1539 return -1;
1540 }
1541 if (filter.family == AF_PACKET) {
1542 fprintf(stderr, "Cannot flush link addresses.\n");
1543 return -1;
1544 }
1545 }
1546
1547 while (argc > 0) {
1548 if (strcmp(*argv, "to") == 0) {
1549 NEXT_ARG();
1550 get_prefix(&filter.pfx, *argv, filter.family);
1551 if (filter.family == AF_UNSPEC)
1552 filter.family = filter.pfx.family;
1553 } else if (strcmp(*argv, "scope") == 0) {
1554 unsigned int scope = 0;
1555
1556 NEXT_ARG();
1557 filter.scopemask = -1;
1558 if (rtnl_rtscope_a2n(&scope, *argv)) {
1559 if (strcmp(*argv, "all") != 0)
1560 invarg("invalid \"scope\"\n", *argv);
1561 scope = RT_SCOPE_NOWHERE;
1562 filter.scopemask = 0;
1563 }
1564 filter.scope = scope;
1565 } else if (strcmp(*argv, "up") == 0) {
1566 filter.up = 1;
1567 } else if (strcmp(*argv, "dynamic") == 0) {
1568 filter.flags &= ~IFA_F_PERMANENT;
1569 filter.flagmask |= IFA_F_PERMANENT;
1570 } else if (strcmp(*argv, "permanent") == 0) {
1571 filter.flags |= IFA_F_PERMANENT;
1572 filter.flagmask |= IFA_F_PERMANENT;
1573 } else if (strcmp(*argv, "secondary") == 0 ||
1574 strcmp(*argv, "temporary") == 0) {
1575 filter.flags |= IFA_F_SECONDARY;
1576 filter.flagmask |= IFA_F_SECONDARY;
1577 } else if (strcmp(*argv, "primary") == 0) {
1578 filter.flags &= ~IFA_F_SECONDARY;
1579 filter.flagmask |= IFA_F_SECONDARY;
1580 } else if (strcmp(*argv, "tentative") == 0) {
1581 filter.flags |= IFA_F_TENTATIVE;
1582 filter.flagmask |= IFA_F_TENTATIVE;
1583 } else if (strcmp(*argv, "-tentative") == 0) {
1584 filter.flags &= ~IFA_F_TENTATIVE;
1585 filter.flagmask |= IFA_F_TENTATIVE;
1586 } else if (strcmp(*argv, "deprecated") == 0) {
1587 filter.flags |= IFA_F_DEPRECATED;
1588 filter.flagmask |= IFA_F_DEPRECATED;
1589 } else if (strcmp(*argv, "-deprecated") == 0) {
1590 filter.flags &= ~IFA_F_DEPRECATED;
1591 filter.flagmask |= IFA_F_DEPRECATED;
1592 } else if (strcmp(*argv, "home") == 0) {
1593 filter.flags |= IFA_F_HOMEADDRESS;
1594 filter.flagmask |= IFA_F_HOMEADDRESS;
1595 } else if (strcmp(*argv, "nodad") == 0) {
1596 filter.flags |= IFA_F_NODAD;
1597 filter.flagmask |= IFA_F_NODAD;
1598 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
1599 filter.flags |= IFA_F_MANAGETEMPADDR;
1600 filter.flagmask |= IFA_F_MANAGETEMPADDR;
1601 } else if (strcmp(*argv, "noprefixroute") == 0) {
1602 filter.flags |= IFA_F_NOPREFIXROUTE;
1603 filter.flagmask |= IFA_F_NOPREFIXROUTE;
1604 } else if (strcmp(*argv, "autojoin") == 0) {
1605 filter.flags |= IFA_F_MCAUTOJOIN;
1606 filter.flagmask |= IFA_F_MCAUTOJOIN;
1607 } else if (strcmp(*argv, "dadfailed") == 0) {
1608 filter.flags |= IFA_F_DADFAILED;
1609 filter.flagmask |= IFA_F_DADFAILED;
1610 } else if (strcmp(*argv, "-dadfailed") == 0) {
1611 filter.flags &= ~IFA_F_DADFAILED;
1612 filter.flagmask |= IFA_F_DADFAILED;
1613 } else if (strcmp(*argv, "label") == 0) {
1614 NEXT_ARG();
1615 filter.label = *argv;
1616 } else if (strcmp(*argv, "group") == 0) {
1617 NEXT_ARG();
1618 if (rtnl_group_a2n(&filter.group, *argv))
1619 invarg("Invalid \"group\" value\n", *argv);
1620 } else if (strcmp(*argv, "master") == 0) {
1621 int ifindex;
1622
1623 NEXT_ARG();
1624 ifindex = ll_name_to_index(*argv);
1625 if (!ifindex)
1626 invarg("Device does not exist\n", *argv);
1627 filter.master = ifindex;
1628 } else if (strcmp(*argv, "vrf") == 0) {
1629 int ifindex;
1630
1631 NEXT_ARG();
1632 ifindex = ll_name_to_index(*argv);
1633 if (!ifindex)
1634 invarg("Not a valid VRF name\n", *argv);
1635 if (!name_is_vrf(*argv))
1636 invarg("Not a valid VRF name\n", *argv);
1637 filter.master = ifindex;
1638 } else if (strcmp(*argv, "type") == 0) {
1639 int soff;
1640
1641 NEXT_ARG();
1642 soff = strlen(*argv) - strlen("_slave");
1643 if (!strcmp(*argv + soff, "_slave")) {
1644 (*argv)[soff] = '\0';
1645 filter.slave_kind = *argv;
1646 } else {
1647 filter.kind = *argv;
1648 }
1649 } else {
1650 if (strcmp(*argv, "dev") == 0) {
1651 NEXT_ARG();
1652 } else if (matches(*argv, "help") == 0)
1653 usage();
1654 if (filter_dev)
1655 duparg2("dev", *argv);
1656 filter_dev = *argv;
1657 }
1658 argv++; argc--;
1659 }
1660
1661 if (filter_dev) {
1662 filter.ifindex = ll_name_to_index(filter_dev);
1663 if (filter.ifindex <= 0) {
1664 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1665 return -1;
1666 }
1667 }
1668
1669 if (action == IPADD_FLUSH)
1670 return ipaddr_flush();
1671
1672 if (action == IPADD_SAVE) {
1673 if (ipadd_save_prep())
1674 exit(1);
1675
1676 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1677 perror("Cannot send dump request");
1678 exit(1);
1679 }
1680
1681 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1682 fprintf(stderr, "Save terminated\n");
1683 exit(1);
1684 }
1685
1686 exit(0);
1687 }
1688
1689 /*
1690 * If only filter_dev present and none of the other
1691 * link filters are present, use RTM_GETLINK to get
1692 * the link device
1693 */
1694 if (filter_dev && filter.group == -1 && do_link == 1) {
1695 if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) {
1696 perror("Cannot send link get request");
1697 exit(1);
1698 }
1699 exit(0);
1700 }
1701
1702 if (rtnl_wilddump_req_filter_fn(&rth, preferred_family, RTM_GETLINK,
1703 iplink_filter_req) < 0) {
1704 perror("Cannot send dump request");
1705 exit(1);
1706 }
1707
1708 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1709 fprintf(stderr, "Dump terminated\n");
1710 exit(1);
1711 }
1712
1713 if (filter.family != AF_PACKET) {
1714 if (filter.oneline)
1715 no_link = 1;
1716
1717 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1718 perror("Cannot send dump request");
1719 exit(1);
1720 }
1721
1722 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
1723 fprintf(stderr, "Dump terminated\n");
1724 exit(1);
1725 }
1726
1727 ipaddr_filter(&linfo, &ainfo);
1728 }
1729
1730 for (l = linfo.head; l; l = l->next) {
1731 int res = 0;
1732 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1733
1734 if (brief) {
1735 if (print_linkinfo_brief(NULL, &l->h, stdout) == 0)
1736 if (filter.family != AF_PACKET)
1737 print_selected_addrinfo(ifi,
1738 ainfo.head,
1739 stdout);
1740 } else if (no_link ||
1741 (res = print_linkinfo(NULL, &l->h, stdout)) >= 0) {
1742 if (filter.family != AF_PACKET)
1743 print_selected_addrinfo(ifi,
1744 ainfo.head, stdout);
1745 if (res > 0 && !do_link && show_stats)
1746 print_link_stats(stdout, &l->h);
1747 }
1748 }
1749 fflush(stdout);
1750
1751 free_nlmsg_chain(&ainfo);
1752 free_nlmsg_chain(&linfo);
1753
1754 return 0;
1755 }
1756
1757 static void
1758 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
1759 {
1760 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
1761 struct rtattr *i, *vf[IFLA_VF_MAX+1];
1762 struct ifla_vf_rate *vf_rate;
1763 int rem;
1764
1765 rem = RTA_PAYLOAD(vflist);
1766
1767 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1768 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
1769 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
1770 if (vf_rate->vf == vfnum) {
1771 *min = vf_rate->min_tx_rate;
1772 *max = vf_rate->max_tx_rate;
1773 return;
1774 }
1775 }
1776 fprintf(stderr, "Cannot find VF %d\n", vfnum);
1777 exit(1);
1778 }
1779
1780 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, int idx)
1781 {
1782 struct nlmsg_chain linfo = { NULL, NULL};
1783 struct rtattr *tb[IFLA_MAX+1];
1784 struct ifinfomsg *ifi;
1785 struct nlmsg_list *l;
1786 struct nlmsghdr *n;
1787 int len;
1788
1789 if (rtnl_wilddump_request(&rth, AF_UNSPEC, RTM_GETLINK) < 0) {
1790 perror("Cannot send dump request");
1791 exit(1);
1792 }
1793 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1794 fprintf(stderr, "Dump terminated\n");
1795 exit(1);
1796 }
1797 for (l = linfo.head; l; l = l->next) {
1798 n = &l->h;
1799 ifi = NLMSG_DATA(n);
1800
1801 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
1802 if (len < 0 || (idx && idx != ifi->ifi_index))
1803 continue;
1804
1805 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
1806
1807 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
1808 ipaddr_loop_each_vf(tb, vfnum, min, max);
1809 return;
1810 }
1811 }
1812 }
1813
1814 int ipaddr_list_link(int argc, char **argv)
1815 {
1816 preferred_family = AF_PACKET;
1817 do_link = 1;
1818 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
1819 }
1820
1821 void ipaddr_reset_filter(int oneline, int ifindex)
1822 {
1823 memset(&filter, 0, sizeof(filter));
1824 filter.oneline = oneline;
1825 filter.ifindex = ifindex;
1826 }
1827
1828 static int default_scope(inet_prefix *lcl)
1829 {
1830 if (lcl->family == AF_INET) {
1831 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
1832 return RT_SCOPE_HOST;
1833 }
1834 return 0;
1835 }
1836
1837 static bool ipaddr_is_multicast(inet_prefix *a)
1838 {
1839 if (a->family == AF_INET)
1840 return IN_MULTICAST(ntohl(a->data[0]));
1841 else if (a->family == AF_INET6)
1842 return IN6_IS_ADDR_MULTICAST(a->data);
1843 else
1844 return false;
1845 }
1846
1847 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
1848 {
1849 struct {
1850 struct nlmsghdr n;
1851 struct ifaddrmsg ifa;
1852 char buf[256];
1853 } req = {
1854 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
1855 .n.nlmsg_flags = NLM_F_REQUEST | flags,
1856 .n.nlmsg_type = cmd,
1857 .ifa.ifa_family = preferred_family,
1858 };
1859 char *d = NULL;
1860 char *l = NULL;
1861 char *lcl_arg = NULL;
1862 char *valid_lftp = NULL;
1863 char *preferred_lftp = NULL;
1864 inet_prefix lcl;
1865 inet_prefix peer;
1866 int local_len = 0;
1867 int peer_len = 0;
1868 int brd_len = 0;
1869 int any_len = 0;
1870 int scoped = 0;
1871 __u32 preferred_lft = INFINITY_LIFE_TIME;
1872 __u32 valid_lft = INFINITY_LIFE_TIME;
1873 unsigned int ifa_flags = 0;
1874
1875 while (argc > 0) {
1876 if (strcmp(*argv, "peer") == 0 ||
1877 strcmp(*argv, "remote") == 0) {
1878 NEXT_ARG();
1879
1880 if (peer_len)
1881 duparg("peer", *argv);
1882 get_prefix(&peer, *argv, req.ifa.ifa_family);
1883 peer_len = peer.bytelen;
1884 if (req.ifa.ifa_family == AF_UNSPEC)
1885 req.ifa.ifa_family = peer.family;
1886 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1887 req.ifa.ifa_prefixlen = peer.bitlen;
1888 } else if (matches(*argv, "broadcast") == 0 ||
1889 strcmp(*argv, "brd") == 0) {
1890 inet_prefix addr;
1891
1892 NEXT_ARG();
1893 if (brd_len)
1894 duparg("broadcast", *argv);
1895 if (strcmp(*argv, "+") == 0)
1896 brd_len = -1;
1897 else if (strcmp(*argv, "-") == 0)
1898 brd_len = -2;
1899 else {
1900 get_addr(&addr, *argv, req.ifa.ifa_family);
1901 if (req.ifa.ifa_family == AF_UNSPEC)
1902 req.ifa.ifa_family = addr.family;
1903 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1904 brd_len = addr.bytelen;
1905 }
1906 } else if (strcmp(*argv, "anycast") == 0) {
1907 inet_prefix addr;
1908
1909 NEXT_ARG();
1910 if (any_len)
1911 duparg("anycast", *argv);
1912 get_addr(&addr, *argv, req.ifa.ifa_family);
1913 if (req.ifa.ifa_family == AF_UNSPEC)
1914 req.ifa.ifa_family = addr.family;
1915 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1916 any_len = addr.bytelen;
1917 } else if (strcmp(*argv, "scope") == 0) {
1918 unsigned int scope = 0;
1919
1920 NEXT_ARG();
1921 if (rtnl_rtscope_a2n(&scope, *argv))
1922 invarg("invalid scope value.", *argv);
1923 req.ifa.ifa_scope = scope;
1924 scoped = 1;
1925 } else if (strcmp(*argv, "dev") == 0) {
1926 NEXT_ARG();
1927 d = *argv;
1928 } else if (strcmp(*argv, "label") == 0) {
1929 NEXT_ARG();
1930 l = *argv;
1931 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1932 } else if (matches(*argv, "valid_lft") == 0) {
1933 if (valid_lftp)
1934 duparg("valid_lft", *argv);
1935 NEXT_ARG();
1936 valid_lftp = *argv;
1937 if (set_lifetime(&valid_lft, *argv))
1938 invarg("valid_lft value", *argv);
1939 } else if (matches(*argv, "preferred_lft") == 0) {
1940 if (preferred_lftp)
1941 duparg("preferred_lft", *argv);
1942 NEXT_ARG();
1943 preferred_lftp = *argv;
1944 if (set_lifetime(&preferred_lft, *argv))
1945 invarg("preferred_lft value", *argv);
1946 } else if (strcmp(*argv, "home") == 0) {
1947 ifa_flags |= IFA_F_HOMEADDRESS;
1948 } else if (strcmp(*argv, "nodad") == 0) {
1949 ifa_flags |= IFA_F_NODAD;
1950 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
1951 ifa_flags |= IFA_F_MANAGETEMPADDR;
1952 } else if (strcmp(*argv, "noprefixroute") == 0) {
1953 ifa_flags |= IFA_F_NOPREFIXROUTE;
1954 } else if (strcmp(*argv, "autojoin") == 0) {
1955 ifa_flags |= IFA_F_MCAUTOJOIN;
1956 } else {
1957 if (strcmp(*argv, "local") == 0) {
1958 NEXT_ARG();
1959 }
1960 if (matches(*argv, "help") == 0)
1961 usage();
1962 if (local_len)
1963 duparg2("local", *argv);
1964 lcl_arg = *argv;
1965 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1966 if (req.ifa.ifa_family == AF_UNSPEC)
1967 req.ifa.ifa_family = lcl.family;
1968 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1969 local_len = lcl.bytelen;
1970 }
1971 argc--; argv++;
1972 }
1973 if (ifa_flags <= 0xff)
1974 req.ifa.ifa_flags = ifa_flags;
1975 else
1976 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
1977
1978 if (d == NULL) {
1979 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1980 return -1;
1981 }
1982 if (l && matches(d, l) != 0) {
1983 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1984 return -1;
1985 }
1986
1987 if (peer_len == 0 && local_len) {
1988 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1989 fprintf(stderr,
1990 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1991 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1992 " This special behaviour is likely to disappear in further releases,\n" \
1993 " fix your scripts!\n", lcl_arg, local_len*8);
1994 } else {
1995 peer = lcl;
1996 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1997 }
1998 }
1999 if (req.ifa.ifa_prefixlen == 0)
2000 req.ifa.ifa_prefixlen = lcl.bitlen;
2001
2002 if (brd_len < 0 && cmd != RTM_DELADDR) {
2003 inet_prefix brd;
2004 int i;
2005
2006 if (req.ifa.ifa_family != AF_INET) {
2007 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2008 return -1;
2009 }
2010 brd = peer;
2011 if (brd.bitlen <= 30) {
2012 for (i = 31; i >= brd.bitlen; i--) {
2013 if (brd_len == -1)
2014 brd.data[0] |= htonl(1<<(31-i));
2015 else
2016 brd.data[0] &= ~htonl(1<<(31-i));
2017 }
2018 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2019 brd_len = brd.bytelen;
2020 }
2021 }
2022 if (!scoped && cmd != RTM_DELADDR)
2023 req.ifa.ifa_scope = default_scope(&lcl);
2024
2025 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
2026 fprintf(stderr, "Cannot find device \"%s\"\n", d);
2027 return -1;
2028 }
2029
2030 if (valid_lftp || preferred_lftp) {
2031 struct ifa_cacheinfo cinfo = {};
2032
2033 if (!valid_lft) {
2034 fprintf(stderr, "valid_lft is zero\n");
2035 return -1;
2036 }
2037 if (valid_lft < preferred_lft) {
2038 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2039 return -1;
2040 }
2041
2042 cinfo.ifa_prefered = preferred_lft;
2043 cinfo.ifa_valid = valid_lft;
2044 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2045 sizeof(cinfo));
2046 }
2047
2048 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2049 fprintf(stderr, "autojoin needs multicast address\n");
2050 return -1;
2051 }
2052
2053 if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
2054 return -2;
2055
2056 return 0;
2057 }
2058
2059 int do_ipaddr(int argc, char **argv)
2060 {
2061 if (argc < 1)
2062 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2063 if (matches(*argv, "add") == 0)
2064 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2065 if (matches(*argv, "change") == 0 ||
2066 strcmp(*argv, "chg") == 0)
2067 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2068 if (matches(*argv, "replace") == 0)
2069 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2070 if (matches(*argv, "delete") == 0)
2071 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2072 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2073 || matches(*argv, "lst") == 0)
2074 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2075 if (matches(*argv, "flush") == 0)
2076 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2077 if (matches(*argv, "save") == 0)
2078 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2079 if (matches(*argv, "showdump") == 0)
2080 return ipaddr_showdump();
2081 if (matches(*argv, "restore") == 0)
2082 return ipaddr_restore();
2083 if (matches(*argv, "help") == 0)
2084 usage();
2085 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2086 exit(-1);
2087 }
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