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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 <inttypes.h>
17 #include <fcntl.h>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/param.h>
21 #include <errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
24 #include <string.h>
25 #include <fnmatch.h>
26
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/sockios.h>
30 #include <linux/net_namespace.h>
31
32 #include "utils.h"
33 #include "rt_names.h"
34 #include "utils.h"
35 #include "ll_map.h"
36 #include "ip_common.h"
37 #include "color.h"
38
39 enum {
40 IPADD_LIST,
41 IPADD_FLUSH,
42 IPADD_SAVE,
43 };
44
45 static struct link_filter filter;
46 static int do_link;
47
48 static void usage(void) __attribute__((noreturn));
49
50 static void usage(void)
51 {
52 if (do_link)
53 iplink_usage();
54
55 fprintf(stderr, "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n");
56 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
57 fprintf(stderr, " ip address del IFADDR dev IFNAME [mngtmpaddr]\n");
58 fprintf(stderr, " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n");
59 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n");
60 fprintf(stderr, " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n");
61 fprintf(stderr, " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n");
62 fprintf(stderr, " [ label LABEL ] [up] [ vrf NAME ] ]\n");
63 fprintf(stderr, " ip address {showdump|restore}\n");
64 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
65 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
66 fprintf(stderr, " [ label IFNAME ] [ scope SCOPE-ID ] [ metric METRIC ]\n");
67 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
68 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
69 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
70 fprintf(stderr, " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n");
71 fprintf(stderr, " CONFFLAG-LIST ]\n");
72 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
73 fprintf(stderr, "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n");
74 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
75 fprintf(stderr, "LFT := forever | SECONDS\n");
76 fprintf(stderr, "TYPE := { vlan | veth | vcan | vxcan | dummy | ifb | macvlan | macvtap |\n");
77 fprintf(stderr, " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | lowpan |\n");
78 fprintf(stderr, " gre | gretap | erspan | ip6gre | ip6gretap | ip6erspan | vti |\n");
79 fprintf(stderr, " nlmon | can | bond_slave | ipvlan | geneve | bridge_slave |\n");
80 fprintf(stderr, " hsr | macsec | netdevsim }\n");
81
82 exit(-1);
83 }
84
85 static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown)
86 {
87 open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
88 if (flags & IFF_UP && !(flags & IFF_RUNNING))
89 print_string(PRINT_ANY, NULL,
90 flags ? "%s," : "%s", "NO-CARRIER");
91 flags &= ~IFF_RUNNING;
92 #define _PF(f) if (flags&IFF_##f) { \
93 flags &= ~IFF_##f ; \
94 print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); }
95 _PF(LOOPBACK);
96 _PF(BROADCAST);
97 _PF(POINTOPOINT);
98 _PF(MULTICAST);
99 _PF(NOARP);
100 _PF(ALLMULTI);
101 _PF(PROMISC);
102 _PF(MASTER);
103 _PF(SLAVE);
104 _PF(DEBUG);
105 _PF(DYNAMIC);
106 _PF(AUTOMEDIA);
107 _PF(PORTSEL);
108 _PF(NOTRAILERS);
109 _PF(UP);
110 _PF(LOWER_UP);
111 _PF(DORMANT);
112 _PF(ECHO);
113 #undef _PF
114 if (flags)
115 print_hex(PRINT_ANY, NULL, "%x", flags);
116 if (mdown)
117 print_string(PRINT_ANY, NULL, ",%s", "M-DOWN");
118 close_json_array(PRINT_ANY, "> ");
119 }
120
121 static const char *oper_states[] = {
122 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
123 "TESTING", "DORMANT", "UP"
124 };
125
126 static void print_operstate(FILE *f, __u8 state)
127 {
128 if (state >= ARRAY_SIZE(oper_states)) {
129 if (is_json_context())
130 print_uint(PRINT_JSON, "operstate_index", NULL, state);
131 else
132 print_0xhex(PRINT_FP, NULL, "state %#x", state);
133 } else if (brief) {
134 print_color_string(PRINT_ANY,
135 oper_state_color(state),
136 "operstate",
137 "%-14s ",
138 oper_states[state]);
139 } else {
140 if (is_json_context())
141 print_string(PRINT_JSON,
142 "operstate",
143 NULL, oper_states[state]);
144 else {
145 fprintf(f, "state ");
146 color_fprintf(f, oper_state_color(state),
147 "%s ", oper_states[state]);
148 }
149 }
150 }
151
152 int get_operstate(const char *name)
153 {
154 int i;
155
156 for (i = 0; i < ARRAY_SIZE(oper_states); i++)
157 if (strcasecmp(name, oper_states[i]) == 0)
158 return i;
159 return -1;
160 }
161
162 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
163 {
164 int qlen;
165
166 if (tb[IFLA_TXQLEN])
167 qlen = rta_getattr_u32(tb[IFLA_TXQLEN]);
168 else {
169 struct ifreq ifr = {};
170 int s = socket(AF_INET, SOCK_STREAM, 0);
171
172 if (s < 0)
173 return;
174
175 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
176 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
177 fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
178 close(s);
179 return;
180 }
181 close(s);
182 qlen = ifr.ifr_qlen;
183 }
184 if (qlen)
185 print_int(PRINT_ANY, "txqlen", "qlen %d", qlen);
186 }
187
188 static const char *link_modes[] = {
189 "DEFAULT", "DORMANT"
190 };
191
192 static void print_linkmode(FILE *f, struct rtattr *tb)
193 {
194 unsigned int mode = rta_getattr_u8(tb);
195
196 if (mode >= ARRAY_SIZE(link_modes))
197 print_int(PRINT_ANY,
198 "linkmode_index",
199 "mode %d ",
200 mode);
201 else
202 print_string(PRINT_ANY,
203 "linkmode",
204 "mode %s "
205 , link_modes[mode]);
206 }
207
208 static char *parse_link_kind(struct rtattr *tb, bool slave)
209 {
210 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
211 int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND;
212
213 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
214
215 if (linkinfo[attr])
216 return RTA_DATA(linkinfo[attr]);
217
218 return "";
219 }
220
221 static int match_link_kind(struct rtattr **tb, const char *kind, bool slave)
222 {
223 if (!tb[IFLA_LINKINFO])
224 return -1;
225
226 return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind);
227 }
228
229 static void print_linktype(FILE *fp, struct rtattr *tb)
230 {
231 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
232 struct link_util *lu;
233 struct link_util *slave_lu;
234 char slave[32];
235
236 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
237 open_json_object("linkinfo");
238
239 if (linkinfo[IFLA_INFO_KIND]) {
240 const char *kind
241 = rta_getattr_str(linkinfo[IFLA_INFO_KIND]);
242
243 print_nl();
244 print_string(PRINT_ANY, "info_kind", " %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 open_json_object("info_data");
256 lu->print_opt(lu, fp, data);
257 close_json_object();
258
259 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
260 lu->print_xstats) {
261 open_json_object("info_xstats");
262 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
263 close_json_object();
264 }
265 }
266 }
267
268 if (linkinfo[IFLA_INFO_SLAVE_KIND]) {
269 const char *slave_kind
270 = rta_getattr_str(linkinfo[IFLA_INFO_SLAVE_KIND]);
271
272 print_nl();
273 print_string(PRINT_ANY,
274 "info_slave_kind",
275 " %s_slave ",
276 slave_kind);
277
278 snprintf(slave, sizeof(slave), "%s_slave", slave_kind);
279
280 slave_lu = get_link_kind(slave);
281 if (slave_lu && slave_lu->print_opt) {
282 struct rtattr *attr[slave_lu->maxattr+1], **data = NULL;
283
284 if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
285 parse_rtattr_nested(attr, slave_lu->maxattr,
286 linkinfo[IFLA_INFO_SLAVE_DATA]);
287 data = attr;
288 }
289 open_json_object("info_slave_data");
290 slave_lu->print_opt(slave_lu, fp, data);
291 close_json_object();
292 }
293 }
294 close_json_object();
295 }
296
297 static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
298 {
299 struct rtattr *inet6_attr;
300 struct rtattr *tb[IFLA_INET6_MAX + 1];
301
302 inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
303 if (!inet6_attr)
304 return;
305
306 parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
307
308 if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
309 __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]);
310 SPRINT_BUF(b1);
311
312 switch (mode) {
313 case IN6_ADDR_GEN_MODE_EUI64:
314 print_string(PRINT_ANY,
315 "inet6_addr_gen_mode",
316 "addrgenmode %s ",
317 "eui64");
318 break;
319 case IN6_ADDR_GEN_MODE_NONE:
320 print_string(PRINT_ANY,
321 "inet6_addr_gen_mode",
322 "addrgenmode %s ",
323 "none");
324 break;
325 case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
326 print_string(PRINT_ANY,
327 "inet6_addr_gen_mode",
328 "addrgenmode %s ",
329 "stable_secret");
330 break;
331 case IN6_ADDR_GEN_MODE_RANDOM:
332 print_string(PRINT_ANY,
333 "inet6_addr_gen_mode",
334 "addrgenmode %s ",
335 "random");
336 break;
337 default:
338 snprintf(b1, sizeof(b1), "%#.2hhx", mode);
339 print_string(PRINT_ANY,
340 "inet6_addr_gen_mode",
341 "addrgenmode %s ",
342 b1);
343 break;
344 }
345 }
346 }
347
348 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats);
349
350 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
351 {
352 struct ifla_vf_mac *vf_mac;
353 struct ifla_vf_tx_rate *vf_tx_rate;
354 struct rtattr *vf[IFLA_VF_MAX + 1] = {};
355
356 SPRINT_BUF(b1);
357
358 if (vfinfo->rta_type != IFLA_VF_INFO) {
359 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
360 return;
361 }
362
363 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
364
365 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
366 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
367
368 print_string(PRINT_FP, NULL, "%s ", _SL_);
369 print_int(PRINT_ANY, "vf", "vf %d ", vf_mac->vf);
370 print_string(PRINT_ANY, "mac", "MAC %s",
371 ll_addr_n2a((unsigned char *) &vf_mac->mac,
372 ETH_ALEN, 0, b1, sizeof(b1)));
373
374 if (vf[IFLA_VF_VLAN_LIST]) {
375 struct rtattr *i, *vfvlanlist = vf[IFLA_VF_VLAN_LIST];
376 int rem = RTA_PAYLOAD(vfvlanlist);
377
378 open_json_array(PRINT_JSON, "vlan_list");
379 for (i = RTA_DATA(vfvlanlist);
380 RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
381 struct ifla_vf_vlan_info *vf_vlan_info = RTA_DATA(i);
382 SPRINT_BUF(b2);
383
384 open_json_object(NULL);
385 if (vf_vlan_info->vlan)
386 print_int(PRINT_ANY,
387 "vlan",
388 ", vlan %d",
389 vf_vlan_info->vlan);
390 if (vf_vlan_info->qos)
391 print_int(PRINT_ANY,
392 "qos",
393 ", qos %d",
394 vf_vlan_info->qos);
395 if (vf_vlan_info->vlan_proto &&
396 vf_vlan_info->vlan_proto != htons(ETH_P_8021Q))
397 print_string(PRINT_ANY,
398 "protocol",
399 ", vlan protocol %s",
400 ll_proto_n2a(
401 vf_vlan_info->vlan_proto,
402 b2, sizeof(b2)));
403 close_json_object();
404 }
405 close_json_array(PRINT_JSON, NULL);
406 } else {
407 struct ifla_vf_vlan *vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
408
409 if (vf_vlan->vlan)
410 print_int(PRINT_ANY,
411 "vlan",
412 ", vlan %d",
413 vf_vlan->vlan);
414 if (vf_vlan->qos)
415 print_int(PRINT_ANY, "qos", ", qos %d", vf_vlan->qos);
416 }
417
418 if (vf_tx_rate->rate)
419 print_uint(PRINT_ANY,
420 "tx_rate",
421 ", tx rate %u (Mbps)",
422 vf_tx_rate->rate);
423
424 if (vf[IFLA_VF_RATE]) {
425 struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
426 int max_tx = vf_rate->max_tx_rate;
427 int min_tx = vf_rate->min_tx_rate;
428
429 if (is_json_context()) {
430 open_json_object("rate");
431 print_uint(PRINT_JSON, "max_tx", NULL, max_tx);
432 print_uint(PRINT_ANY, "min_tx", NULL, min_tx);
433 close_json_object();
434 } else {
435 if (max_tx)
436 fprintf(fp, ", max_tx_rate %uMbps", max_tx);
437 if (min_tx)
438 fprintf(fp, ", min_tx_rate %uMbps", min_tx);
439 }
440 }
441
442 if (vf[IFLA_VF_SPOOFCHK]) {
443 struct ifla_vf_spoofchk *vf_spoofchk =
444 RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
445
446 if (vf_spoofchk->setting != -1)
447 print_bool(PRINT_ANY,
448 "spoofchk",
449 vf_spoofchk->setting ?
450 ", spoof checking on" : ", spoof checking off",
451 vf_spoofchk->setting);
452 }
453
454 if (vf[IFLA_VF_LINK_STATE]) {
455 struct ifla_vf_link_state *vf_linkstate =
456 RTA_DATA(vf[IFLA_VF_LINK_STATE]);
457
458 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
459 print_string(PRINT_ANY,
460 "link_state",
461 ", link-state %s",
462 "auto");
463 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
464 print_string(PRINT_ANY,
465 "link_state",
466 ", link-state %s",
467 "enable");
468 else
469 print_string(PRINT_ANY,
470 "link_state",
471 ", link-state %s",
472 "disable");
473 }
474
475 if (vf[IFLA_VF_TRUST]) {
476 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
477
478 if (vf_trust->setting != -1)
479 print_bool(PRINT_ANY,
480 "trust",
481 vf_trust->setting ? ", trust on" : ", trust off",
482 vf_trust->setting);
483 }
484
485 if (vf[IFLA_VF_RSS_QUERY_EN]) {
486 struct ifla_vf_rss_query_en *rss_query =
487 RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]);
488
489 if (rss_query->setting != -1)
490 print_bool(PRINT_ANY,
491 "query_rss_en",
492 rss_query->setting ? ", query_rss on"
493 : ", query_rss off",
494 rss_query->setting);
495 }
496
497 if (vf[IFLA_VF_STATS] && show_stats)
498 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
499 }
500
501 void print_num(FILE *fp, unsigned int width, uint64_t count)
502 {
503 const char *prefix = "kMGTPE";
504 const unsigned int base = use_iec ? 1024 : 1000;
505 uint64_t powi = 1;
506 uint16_t powj = 1;
507 uint8_t precision = 2;
508 char buf[64];
509
510 if (!human_readable || count < base) {
511 fprintf(fp, "%-*"PRIu64" ", width, count);
512 return;
513 }
514
515 /* increase value by a factor of 1000/1024 and print
516 * if result is something a human can read
517 */
518 for (;;) {
519 powi *= base;
520 if (count / base < powi)
521 break;
522
523 if (!prefix[1])
524 break;
525 ++prefix;
526 }
527
528 /* try to guess a good number of digits for precision */
529 for (; precision > 0; precision--) {
530 powj *= 10;
531 if (count / powi < powj)
532 break;
533 }
534
535 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
536 (double) count / powi, *prefix, use_iec ? "i" : "");
537
538 fprintf(fp, "%-*s ", width, buf);
539 }
540
541 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
542 {
543 struct rtattr *vf[IFLA_VF_STATS_MAX + 1];
544
545 if (vfstats->rta_type != IFLA_VF_STATS) {
546 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
547 return;
548 }
549
550 parse_rtattr_nested(vf, IFLA_VF_MAX, vfstats);
551
552 if (is_json_context()) {
553 open_json_object("stats");
554
555 /* RX stats */
556 open_json_object("rx");
557 print_u64(PRINT_JSON, "bytes", NULL,
558 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
559 print_u64(PRINT_JSON, "packets", NULL,
560 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
561 print_u64(PRINT_JSON, "multicast", NULL,
562 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
563 print_u64(PRINT_JSON, "broadcast", NULL,
564 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
565 if (vf[IFLA_VF_STATS_RX_DROPPED])
566 print_u64(PRINT_JSON, "dropped", NULL,
567 rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
568 close_json_object();
569
570 /* TX stats */
571 open_json_object("tx");
572 print_u64(PRINT_JSON, "tx_bytes", NULL,
573 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
574 print_u64(PRINT_JSON, "tx_packets", NULL,
575 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
576 if (vf[IFLA_VF_STATS_TX_DROPPED])
577 print_u64(PRINT_JSON, "dropped", NULL,
578 rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
579 close_json_object();
580 close_json_object();
581 } else {
582 /* RX stats */
583 fprintf(fp, "%s", _SL_);
584 fprintf(fp, " RX: bytes packets mcast bcast ");
585 if (vf[IFLA_VF_STATS_RX_DROPPED])
586 fprintf(fp, " dropped ");
587 fprintf(fp, "%s", _SL_);
588 fprintf(fp, " ");
589
590 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
591 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
592 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
593 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
594 if (vf[IFLA_VF_STATS_RX_DROPPED])
595 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
596
597 /* TX stats */
598 fprintf(fp, "%s", _SL_);
599 fprintf(fp, " TX: bytes packets ");
600 if (vf[IFLA_VF_STATS_TX_DROPPED])
601 fprintf(fp, " dropped ");
602 fprintf(fp, "%s", _SL_);
603 fprintf(fp, " ");
604
605 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
606 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
607 if (vf[IFLA_VF_STATS_TX_DROPPED])
608 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
609 }
610 }
611
612 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
613 {
614 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
615 struct rtnl_link_stats64 _s, *s = &_s;
616 int ret;
617
618 ret = get_rtnl_link_stats_rta(s, tb);
619 if (ret < 0)
620 return;
621
622 if (is_json_context()) {
623 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
624
625 /* RX stats */
626 open_json_object("rx");
627 print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes);
628 print_u64(PRINT_JSON, "packets", NULL, s->rx_packets);
629 print_u64(PRINT_JSON, "errors", NULL, s->rx_errors);
630 print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped);
631 print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
632 print_u64(PRINT_JSON, "multicast", NULL, s->multicast);
633 if (s->rx_compressed)
634 print_u64(PRINT_JSON,
635 "compressed", NULL, s->rx_compressed);
636
637 /* RX error stats */
638 if (show_stats > 1) {
639 print_u64(PRINT_JSON,
640 "length_errors",
641 NULL, s->rx_length_errors);
642 print_u64(PRINT_JSON,
643 "crc_errors",
644 NULL, s->rx_crc_errors);
645 print_u64(PRINT_JSON,
646 "frame_errors",
647 NULL, s->rx_frame_errors);
648 print_u64(PRINT_JSON,
649 "fifo_errors",
650 NULL, s->rx_fifo_errors);
651 print_u64(PRINT_JSON,
652 "missed_errors",
653 NULL, s->rx_missed_errors);
654 if (s->rx_nohandler)
655 print_u64(PRINT_JSON,
656 "nohandler", NULL, s->rx_nohandler);
657 }
658 close_json_object();
659
660 /* TX stats */
661 open_json_object("tx");
662 print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes);
663 print_u64(PRINT_JSON, "packets", NULL, s->tx_packets);
664 print_u64(PRINT_JSON, "errors", NULL, s->tx_errors);
665 print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped);
666 print_u64(PRINT_JSON,
667 "carrier_errors",
668 NULL, s->tx_carrier_errors);
669 print_u64(PRINT_JSON, "collisions", NULL, s->collisions);
670 if (s->tx_compressed)
671 print_u64(PRINT_JSON,
672 "compressed", NULL, s->tx_compressed);
673
674 /* TX error stats */
675 if (show_stats > 1) {
676 print_u64(PRINT_JSON,
677 "aborted_errors",
678 NULL, s->tx_aborted_errors);
679 print_u64(PRINT_JSON,
680 "fifo_errors",
681 NULL, s->tx_fifo_errors);
682 print_u64(PRINT_JSON,
683 "window_errors",
684 NULL, s->tx_window_errors);
685 print_u64(PRINT_JSON,
686 "heartbeat_errors",
687 NULL, s->tx_heartbeat_errors);
688 if (carrier_changes)
689 print_u64(PRINT_JSON, "carrier_changes", NULL,
690 rta_getattr_u32(carrier_changes));
691 }
692
693 close_json_object();
694 close_json_object();
695 } else {
696 /* RX stats */
697 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
698 s->rx_compressed ? "compressed" : "", _SL_);
699
700 fprintf(fp, " ");
701 print_num(fp, 10, s->rx_bytes);
702 print_num(fp, 8, s->rx_packets);
703 print_num(fp, 7, s->rx_errors);
704 print_num(fp, 7, s->rx_dropped);
705 print_num(fp, 7, s->rx_over_errors);
706 print_num(fp, 7, s->multicast);
707 if (s->rx_compressed)
708 print_num(fp, 7, s->rx_compressed);
709
710 /* RX error stats */
711 if (show_stats > 1) {
712 fprintf(fp, "%s", _SL_);
713 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
714 s->rx_nohandler ? " nohandler" : "", _SL_);
715 fprintf(fp, " ");
716 print_num(fp, 8, s->rx_length_errors);
717 print_num(fp, 7, s->rx_crc_errors);
718 print_num(fp, 7, s->rx_frame_errors);
719 print_num(fp, 7, s->rx_fifo_errors);
720 print_num(fp, 7, s->rx_missed_errors);
721 if (s->rx_nohandler)
722 print_num(fp, 7, s->rx_nohandler);
723 }
724 fprintf(fp, "%s", _SL_);
725
726 /* TX stats */
727 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
728 s->tx_compressed ? "compressed" : "", _SL_);
729
730 fprintf(fp, " ");
731 print_num(fp, 10, s->tx_bytes);
732 print_num(fp, 8, s->tx_packets);
733 print_num(fp, 7, s->tx_errors);
734 print_num(fp, 7, s->tx_dropped);
735 print_num(fp, 7, s->tx_carrier_errors);
736 print_num(fp, 7, s->collisions);
737 if (s->tx_compressed)
738 print_num(fp, 7, s->tx_compressed);
739
740 /* TX error stats */
741 if (show_stats > 1) {
742 fprintf(fp, "%s", _SL_);
743 fprintf(fp, " TX errors: aborted fifo window heartbeat");
744 if (carrier_changes)
745 fprintf(fp, " transns");
746 fprintf(fp, "%s", _SL_);
747
748 fprintf(fp, " ");
749 print_num(fp, 8, s->tx_aborted_errors);
750 print_num(fp, 7, s->tx_fifo_errors);
751 print_num(fp, 7, s->tx_window_errors);
752 print_num(fp, 7, s->tx_heartbeat_errors);
753 if (carrier_changes)
754 print_num(fp, 7,
755 rta_getattr_u32(carrier_changes));
756 }
757 }
758 }
759
760 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
761 {
762 struct ifinfomsg *ifi = NLMSG_DATA(n);
763 struct rtattr *tb[IFLA_MAX+1];
764
765 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
766 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
767 __print_link_stats(fp, tb);
768 print_nl();
769 }
770
771 static int print_linkinfo_brief(FILE *fp, const char *name,
772 const struct ifinfomsg *ifi,
773 struct rtattr *tb[])
774 {
775 unsigned int m_flag = 0;
776
777 m_flag = print_name_and_link("%-16s ", name, tb);
778
779 if (tb[IFLA_OPERSTATE])
780 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
781
782 if (filter.family == AF_PACKET) {
783 SPRINT_BUF(b1);
784
785 if (tb[IFLA_ADDRESS]) {
786 print_color_string(PRINT_ANY, COLOR_MAC,
787 "address", "%s ",
788 ll_addr_n2a(
789 RTA_DATA(tb[IFLA_ADDRESS]),
790 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
791 ifi->ifi_type,
792 b1, sizeof(b1)));
793 }
794 }
795
796 if (filter.family == AF_PACKET) {
797 print_link_flags(fp, ifi->ifi_flags, m_flag);
798 print_string(PRINT_FP, NULL, "%s", "\n");
799 }
800
801 fflush(fp);
802 return 0;
803 }
804
805 static const char *link_events[] = {
806 [IFLA_EVENT_NONE] = "NONE",
807 [IFLA_EVENT_REBOOT] = "REBOOT",
808 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
809 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
810 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
811 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
812 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
813 };
814
815 static void print_link_event(FILE *f, __u32 event)
816 {
817 if (event >= ARRAY_SIZE(link_events))
818 print_int(PRINT_ANY, "event", "event %d ", event);
819 else {
820 if (event)
821 print_string(PRINT_ANY,
822 "event", "event %s ",
823 link_events[event]);
824 }
825 }
826
827 int print_linkinfo(struct nlmsghdr *n, void *arg)
828 {
829 FILE *fp = (FILE *)arg;
830 struct ifinfomsg *ifi = NLMSG_DATA(n);
831 struct rtattr *tb[IFLA_MAX+1];
832 int len = n->nlmsg_len;
833 const char *name;
834 unsigned int m_flag = 0;
835 SPRINT_BUF(b1);
836
837 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
838 return 0;
839
840 len -= NLMSG_LENGTH(sizeof(*ifi));
841 if (len < 0)
842 return -1;
843
844 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
845 return -1;
846 if (filter.up && !(ifi->ifi_flags&IFF_UP))
847 return -1;
848
849 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
850
851 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
852 if (!name)
853 return -1;
854
855 if (filter.label)
856 return 0;
857
858 if (tb[IFLA_GROUP]) {
859 int group = rta_getattr_u32(tb[IFLA_GROUP]);
860
861 if (filter.group != -1 && group != filter.group)
862 return -1;
863 }
864
865 if (tb[IFLA_MASTER]) {
866 int master = rta_getattr_u32(tb[IFLA_MASTER]);
867
868 if (filter.master > 0 && master != filter.master)
869 return -1;
870 } else if (filter.master > 0)
871 return -1;
872
873 if (filter.kind && match_link_kind(tb, filter.kind, 0))
874 return -1;
875
876 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
877 return -1;
878
879 if (n->nlmsg_type == RTM_DELLINK)
880 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
881
882 if (brief)
883 return print_linkinfo_brief(fp, name, ifi, tb);
884
885 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
886
887 m_flag = print_name_and_link("%s: ", name, tb);
888 print_link_flags(fp, ifi->ifi_flags, m_flag);
889
890 if (tb[IFLA_MTU])
891 print_int(PRINT_ANY,
892 "mtu", "mtu %u ",
893 rta_getattr_u32(tb[IFLA_MTU]));
894 if (tb[IFLA_XDP])
895 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
896 if (tb[IFLA_QDISC])
897 print_string(PRINT_ANY,
898 "qdisc",
899 "qdisc %s ",
900 rta_getattr_str(tb[IFLA_QDISC]));
901 if (tb[IFLA_MASTER]) {
902 int master = rta_getattr_u32(tb[IFLA_MASTER]);
903
904 print_string(PRINT_ANY,
905 "master", "master %s ",
906 ll_index_to_name(master));
907 }
908
909 if (tb[IFLA_OPERSTATE])
910 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
911
912 if (do_link && tb[IFLA_LINKMODE])
913 print_linkmode(fp, tb[IFLA_LINKMODE]);
914
915 if (tb[IFLA_GROUP]) {
916 int group = rta_getattr_u32(tb[IFLA_GROUP]);
917
918 print_string(PRINT_ANY,
919 "group",
920 "group %s ",
921 rtnl_group_n2a(group, b1, sizeof(b1)));
922 }
923
924 if (filter.showqueue)
925 print_queuelen(fp, tb);
926
927 if (tb[IFLA_EVENT])
928 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
929
930 if (!filter.family || filter.family == AF_PACKET || show_details) {
931 print_nl();
932 print_string(PRINT_ANY,
933 "link_type",
934 " link/%s ",
935 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
936 if (tb[IFLA_ADDRESS]) {
937 print_color_string(PRINT_ANY,
938 COLOR_MAC,
939 "address",
940 "%s",
941 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
942 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
943 ifi->ifi_type,
944 b1, sizeof(b1)));
945 }
946 if (tb[IFLA_BROADCAST]) {
947 if (ifi->ifi_flags&IFF_POINTOPOINT) {
948 print_string(PRINT_FP, NULL, " peer ", NULL);
949 print_bool(PRINT_JSON,
950 "link_pointtopoint", NULL, true);
951 } else {
952 print_string(PRINT_FP, NULL, " brd ", NULL);
953 }
954 print_color_string(PRINT_ANY,
955 COLOR_MAC,
956 "broadcast",
957 "%s",
958 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
959 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
960 ifi->ifi_type,
961 b1, sizeof(b1)));
962 }
963 }
964
965 if (tb[IFLA_LINK_NETNSID]) {
966 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
967
968 if (is_json_context()) {
969 print_int(PRINT_JSON, "link_netnsid", NULL, id);
970 } else {
971 if (id >= 0) {
972 char *name = get_name_from_nsid(id);
973
974 if (name)
975 print_string(PRINT_FP, NULL,
976 " link-netns %s", name);
977 else
978 print_int(PRINT_FP, NULL,
979 " link-netnsid %d", id);
980 } else
981 print_string(PRINT_FP, NULL,
982 " link-netnsid %s", "unknown");
983 }
984 }
985
986 if (tb[IFLA_NEW_NETNSID]) {
987 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
988 char *name = get_name_from_nsid(id);
989
990 if (name)
991 print_string(PRINT_FP, NULL, " new-netns %s", name);
992 else
993 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
994 }
995 if (tb[IFLA_NEW_IFINDEX]) {
996 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
997
998 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
999 }
1000
1001 if (tb[IFLA_PROTO_DOWN]) {
1002 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1003 print_bool(PRINT_ANY,
1004 "proto_down", " protodown on ", true);
1005 }
1006
1007 if (show_details) {
1008 if (tb[IFLA_PROMISCUITY])
1009 print_uint(PRINT_ANY,
1010 "promiscuity",
1011 " promiscuity %u ",
1012 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1013
1014 if (tb[IFLA_MIN_MTU])
1015 print_uint(PRINT_ANY,
1016 "min_mtu", "minmtu %u ",
1017 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1018
1019 if (tb[IFLA_MAX_MTU])
1020 print_uint(PRINT_ANY,
1021 "max_mtu", "maxmtu %u ",
1022 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1023
1024 if (tb[IFLA_LINKINFO])
1025 print_linktype(fp, tb[IFLA_LINKINFO]);
1026
1027 if (do_link && tb[IFLA_AF_SPEC])
1028 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1029
1030 if (tb[IFLA_NUM_TX_QUEUES])
1031 print_uint(PRINT_ANY,
1032 "num_tx_queues",
1033 "numtxqueues %u ",
1034 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1035
1036 if (tb[IFLA_NUM_RX_QUEUES])
1037 print_uint(PRINT_ANY,
1038 "num_rx_queues",
1039 "numrxqueues %u ",
1040 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1041
1042 if (tb[IFLA_GSO_MAX_SIZE])
1043 print_uint(PRINT_ANY,
1044 "gso_max_size",
1045 "gso_max_size %u ",
1046 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1047
1048 if (tb[IFLA_GSO_MAX_SEGS])
1049 print_uint(PRINT_ANY,
1050 "gso_max_segs",
1051 "gso_max_segs %u ",
1052 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1053
1054 if (tb[IFLA_PHYS_PORT_NAME])
1055 print_string(PRINT_ANY,
1056 "phys_port_name",
1057 "portname %s ",
1058 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1059
1060 if (tb[IFLA_PHYS_PORT_ID]) {
1061 print_string(PRINT_ANY,
1062 "phys_port_id",
1063 "portid %s ",
1064 hexstring_n2a(
1065 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1066 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1067 b1, sizeof(b1)));
1068 }
1069
1070 if (tb[IFLA_PHYS_SWITCH_ID]) {
1071 print_string(PRINT_ANY,
1072 "phys_switch_id",
1073 "switchid %s ",
1074 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1075 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1076 b1, sizeof(b1)));
1077 }
1078 }
1079
1080 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1081 print_string(PRINT_FP, NULL, "%s ", _SL_);
1082 print_string(PRINT_ANY,
1083 "ifalias",
1084 "alias %s",
1085 rta_getattr_str(tb[IFLA_IFALIAS]));
1086 }
1087
1088 if ((do_link || show_details) && tb[IFLA_XDP])
1089 xdp_dump(fp, tb[IFLA_XDP], true, true);
1090
1091 if (do_link && show_stats) {
1092 print_nl();
1093 __print_link_stats(fp, tb);
1094 }
1095
1096 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1097 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1098 int rem = RTA_PAYLOAD(vflist);
1099
1100 open_json_array(PRINT_JSON, "vfinfo_list");
1101 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1102 open_json_object(NULL);
1103 print_vfinfo(fp, i);
1104 close_json_object();
1105 }
1106 close_json_array(PRINT_JSON, NULL);
1107 }
1108
1109 print_string(PRINT_FP, NULL, "%s", "\n");
1110 fflush(fp);
1111 return 1;
1112 }
1113
1114 static int flush_update(void)
1115 {
1116
1117 /*
1118 * Note that the kernel may delete multiple addresses for one
1119 * delete request (e.g. if ipv4 address promotion is disabled).
1120 * Since a flush operation is really a series of delete requests
1121 * its possible that we may request an address delete that has
1122 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1123 * errors returned from a flush request
1124 */
1125 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1126 (errno != EADDRNOTAVAIL)) {
1127 perror("Failed to send flush request");
1128 return -1;
1129 }
1130 filter.flushp = 0;
1131 return 0;
1132 }
1133
1134 static int set_lifetime(unsigned int *lifetime, char *argv)
1135 {
1136 if (strcmp(argv, "forever") == 0)
1137 *lifetime = INFINITY_LIFE_TIME;
1138 else if (get_u32(lifetime, argv, 0))
1139 return -1;
1140
1141 return 0;
1142 }
1143
1144 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1145 struct rtattr *ifa_flags_attr)
1146 {
1147 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1148 ifa->ifa_flags;
1149 }
1150
1151 /* Mapping from argument to address flag mask */
1152 static const struct {
1153 const char *name;
1154 unsigned long value;
1155 } ifa_flag_names[] = {
1156 { "secondary", IFA_F_SECONDARY },
1157 { "temporary", IFA_F_SECONDARY },
1158 { "nodad", IFA_F_NODAD },
1159 { "optimistic", IFA_F_OPTIMISTIC },
1160 { "dadfailed", IFA_F_DADFAILED },
1161 { "home", IFA_F_HOMEADDRESS },
1162 { "deprecated", IFA_F_DEPRECATED },
1163 { "tentative", IFA_F_TENTATIVE },
1164 { "permanent", IFA_F_PERMANENT },
1165 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1166 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1167 { "autojoin", IFA_F_MCAUTOJOIN },
1168 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1169 };
1170
1171 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1172 unsigned int flags)
1173 {
1174 unsigned int i;
1175
1176 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1177 unsigned long mask = ifa_flag_names[i].value;
1178
1179 if (mask == IFA_F_PERMANENT) {
1180 if (!(flags & mask))
1181 print_bool(PRINT_ANY,
1182 "dynamic", "dynamic ", true);
1183 } else if (flags & mask) {
1184 if (mask == IFA_F_SECONDARY &&
1185 ifa->ifa_family == AF_INET6) {
1186 print_bool(PRINT_ANY,
1187 "temporary", "temporary ", true);
1188 } else {
1189 print_string(PRINT_FP, NULL,
1190 "%s ", ifa_flag_names[i].name);
1191 print_bool(PRINT_JSON,
1192 ifa_flag_names[i].name, NULL, true);
1193 }
1194 }
1195
1196 flags &= ~mask;
1197 }
1198
1199 if (flags) {
1200 if (is_json_context()) {
1201 SPRINT_BUF(b1);
1202
1203 snprintf(b1, sizeof(b1), "%02x", flags);
1204 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1205 } else {
1206 fprintf(fp, "flags %02x ", flags);
1207 }
1208 }
1209
1210 }
1211
1212 static int get_filter(const char *arg)
1213 {
1214 bool inv = false;
1215 unsigned int i;
1216
1217 if (arg[0] == '-') {
1218 inv = true;
1219 arg++;
1220 }
1221
1222 /* Special cases */
1223 if (strcmp(arg, "dynamic") == 0) {
1224 inv = !inv;
1225 arg = "permanent";
1226 } else if (strcmp(arg, "primary") == 0) {
1227 inv = !inv;
1228 arg = "secondary";
1229 }
1230
1231 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1232 if (strcmp(arg, ifa_flag_names[i].name))
1233 continue;
1234
1235 if (inv)
1236 filter.flags &= ~ifa_flag_names[i].value;
1237 else
1238 filter.flags |= ifa_flag_names[i].value;
1239 filter.flagmask |= ifa_flag_names[i].value;
1240 return 0;
1241 }
1242 return -1;
1243 }
1244
1245 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1246 {
1247 const char *label;
1248
1249 if (!filter.label)
1250 return 0;
1251
1252 if (rta)
1253 label = RTA_DATA(rta);
1254 else
1255 label = ll_index_to_name(ifindex);
1256
1257 return fnmatch(filter.label, label, 0);
1258 }
1259
1260 int print_addrinfo(struct nlmsghdr *n, void *arg)
1261 {
1262 FILE *fp = arg;
1263 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1264 int len = n->nlmsg_len;
1265 unsigned int ifa_flags;
1266 struct rtattr *rta_tb[IFA_MAX+1];
1267
1268 SPRINT_BUF(b1);
1269
1270 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1271 return 0;
1272 len -= NLMSG_LENGTH(sizeof(*ifa));
1273 if (len < 0) {
1274 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1275 return -1;
1276 }
1277
1278 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1279 return 0;
1280
1281 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1282 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1283
1284 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1285
1286 if (!rta_tb[IFA_LOCAL])
1287 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1288 if (!rta_tb[IFA_ADDRESS])
1289 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1290
1291 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1292 return 0;
1293 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1294 return 0;
1295 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1296 return 0;
1297
1298 if (filter.family && filter.family != ifa->ifa_family)
1299 return 0;
1300
1301 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1302 return 0;
1303
1304 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1305 return 0;
1306
1307 if (filter.flushb) {
1308 struct nlmsghdr *fn;
1309
1310 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1311 if (flush_update())
1312 return -1;
1313 }
1314 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1315 memcpy(fn, n, n->nlmsg_len);
1316 fn->nlmsg_type = RTM_DELADDR;
1317 fn->nlmsg_flags = NLM_F_REQUEST;
1318 fn->nlmsg_seq = ++rth.seq;
1319 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1320 filter.flushed++;
1321 if (show_stats < 2)
1322 return 0;
1323 }
1324
1325 if (n->nlmsg_type == RTM_DELADDR)
1326 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1327
1328 if (!brief) {
1329 const char *name;
1330
1331 if (filter.oneline || filter.flushb) {
1332 const char *dev = ll_index_to_name(ifa->ifa_index);
1333
1334 if (is_json_context()) {
1335 print_int(PRINT_JSON,
1336 "index", NULL, ifa->ifa_index);
1337 print_string(PRINT_JSON, "dev", NULL, dev);
1338 } else {
1339 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1340 }
1341 }
1342
1343 name = family_name(ifa->ifa_family);
1344 if (*name != '?') {
1345 print_string(PRINT_ANY, "family", " %s ", name);
1346 } else {
1347 print_int(PRINT_ANY, "family_index", " family %d ",
1348 ifa->ifa_family);
1349 }
1350 }
1351
1352 if (rta_tb[IFA_LOCAL]) {
1353 print_color_string(PRINT_ANY,
1354 ifa_family_color(ifa->ifa_family),
1355 "local", "%s",
1356 format_host_rta(ifa->ifa_family,
1357 rta_tb[IFA_LOCAL]));
1358 if (rta_tb[IFA_ADDRESS] &&
1359 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1360 RTA_DATA(rta_tb[IFA_LOCAL]),
1361 ifa->ifa_family == AF_INET ? 4 : 16)) {
1362 print_string(PRINT_FP, NULL, " %s ", "peer");
1363 print_color_string(PRINT_ANY,
1364 ifa_family_color(ifa->ifa_family),
1365 "address",
1366 "%s",
1367 format_host_rta(ifa->ifa_family,
1368 rta_tb[IFA_ADDRESS]));
1369 }
1370 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1371
1372 if (rta_tb[IFA_RT_PRIORITY])
1373 print_uint(PRINT_ANY, "metric", "metric %u ",
1374 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1375 }
1376
1377 if (brief)
1378 goto brief_exit;
1379
1380 if (rta_tb[IFA_BROADCAST]) {
1381 print_string(PRINT_FP, NULL, "%s ", "brd");
1382 print_color_string(PRINT_ANY,
1383 ifa_family_color(ifa->ifa_family),
1384 "broadcast",
1385 "%s ",
1386 format_host_rta(ifa->ifa_family,
1387 rta_tb[IFA_BROADCAST]));
1388 }
1389
1390 if (rta_tb[IFA_ANYCAST]) {
1391 print_string(PRINT_FP, NULL, "%s ", "any");
1392 print_color_string(PRINT_ANY,
1393 ifa_family_color(ifa->ifa_family),
1394 "anycast",
1395 "%s ",
1396 format_host_rta(ifa->ifa_family,
1397 rta_tb[IFA_ANYCAST]));
1398 }
1399
1400 print_string(PRINT_ANY,
1401 "scope",
1402 "scope %s ",
1403 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1404
1405 print_ifa_flags(fp, ifa, ifa_flags);
1406
1407 if (rta_tb[IFA_LABEL])
1408 print_string(PRINT_ANY,
1409 "label",
1410 "%s",
1411 rta_getattr_str(rta_tb[IFA_LABEL]));
1412
1413 if (rta_tb[IFA_CACHEINFO]) {
1414 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1415
1416 print_nl();
1417 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1418
1419 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1420 print_uint(PRINT_JSON,
1421 "valid_life_time",
1422 NULL, INFINITY_LIFE_TIME);
1423 print_string(PRINT_FP, NULL, "%s", "forever");
1424 } else {
1425 print_uint(PRINT_ANY,
1426 "valid_life_time", "%usec", ci->ifa_valid);
1427 }
1428
1429 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1430 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1431 print_uint(PRINT_JSON,
1432 "preferred_life_time",
1433 NULL, INFINITY_LIFE_TIME);
1434 print_string(PRINT_FP, NULL, "%s", "forever");
1435 } else {
1436 if (ifa_flags & IFA_F_DEPRECATED)
1437 print_int(PRINT_ANY,
1438 "preferred_life_time",
1439 "%dsec",
1440 ci->ifa_prefered);
1441 else
1442 print_uint(PRINT_ANY,
1443 "preferred_life_time",
1444 "%usec",
1445 ci->ifa_prefered);
1446 }
1447 }
1448 print_string(PRINT_FP, NULL, "%s", "\n");
1449 brief_exit:
1450 fflush(fp);
1451 return 0;
1452 }
1453
1454 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1455 struct nlmsg_list *ainfo, FILE *fp)
1456 {
1457 open_json_array(PRINT_JSON, "addr_info");
1458 for ( ; ainfo ; ainfo = ainfo->next) {
1459 struct nlmsghdr *n = &ainfo->h;
1460 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1461
1462 if (n->nlmsg_type != RTM_NEWADDR)
1463 continue;
1464
1465 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1466 return -1;
1467
1468 if (ifa->ifa_index != ifi->ifi_index ||
1469 (filter.family && filter.family != ifa->ifa_family))
1470 continue;
1471
1472 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1473 continue;
1474
1475 open_json_object(NULL);
1476 print_addrinfo(n, fp);
1477 close_json_object();
1478 }
1479 close_json_array(PRINT_JSON, NULL);
1480
1481 if (brief) {
1482 print_string(PRINT_FP, NULL, "%s", "\n");
1483 fflush(fp);
1484 }
1485 return 0;
1486 }
1487
1488
1489 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1490 {
1491 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1492 struct nlmsg_list *h;
1493
1494 h = malloc(n->nlmsg_len+sizeof(void *));
1495 if (h == NULL)
1496 return -1;
1497
1498 memcpy(&h->h, n, n->nlmsg_len);
1499 h->next = NULL;
1500
1501 if (lchain->tail)
1502 lchain->tail->next = h;
1503 else
1504 lchain->head = h;
1505 lchain->tail = h;
1506
1507 ll_remember_index(n, NULL);
1508 return 0;
1509 }
1510
1511 static __u32 ipadd_dump_magic = 0x47361222;
1512
1513 static int ipadd_save_prep(void)
1514 {
1515 int ret;
1516
1517 if (isatty(STDOUT_FILENO)) {
1518 fprintf(stderr, "Not sending a binary stream to stdout\n");
1519 return -1;
1520 }
1521
1522 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1523 if (ret != sizeof(ipadd_dump_magic)) {
1524 fprintf(stderr, "Can't write magic to dump file\n");
1525 return -1;
1526 }
1527
1528 return 0;
1529 }
1530
1531 static int ipadd_dump_check_magic(void)
1532 {
1533 int ret;
1534 __u32 magic = 0;
1535
1536 if (isatty(STDIN_FILENO)) {
1537 fprintf(stderr, "Can't restore address dump from a terminal\n");
1538 return -1;
1539 }
1540
1541 ret = fread(&magic, sizeof(magic), 1, stdin);
1542 if (magic != ipadd_dump_magic) {
1543 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1544 return -1;
1545 }
1546
1547 return 0;
1548 }
1549
1550 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1551 {
1552 int ret;
1553
1554 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1555 if ((ret > 0) && (ret != n->nlmsg_len)) {
1556 fprintf(stderr, "Short write while saving nlmsg\n");
1557 ret = -EIO;
1558 }
1559
1560 return ret == n->nlmsg_len ? 0 : ret;
1561 }
1562
1563 static int show_handler(struct rtnl_ctrl_data *ctrl,
1564 struct nlmsghdr *n, void *arg)
1565 {
1566 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1567
1568 open_json_object(NULL);
1569 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1570 print_addrinfo(n, stdout);
1571 close_json_object();
1572 return 0;
1573 }
1574
1575 static int ipaddr_showdump(void)
1576 {
1577 int err;
1578
1579 if (ipadd_dump_check_magic())
1580 exit(-1);
1581
1582 new_json_obj(json);
1583 open_json_object(NULL);
1584 open_json_array(PRINT_JSON, "addr_info");
1585
1586 err = rtnl_from_file(stdin, &show_handler, NULL);
1587
1588 close_json_array(PRINT_JSON, NULL);
1589 close_json_object();
1590 delete_json_obj();
1591
1592 exit(err);
1593 }
1594
1595 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1596 struct nlmsghdr *n, void *arg)
1597 {
1598 int ret;
1599
1600 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1601
1602 ll_init_map(&rth);
1603
1604 ret = rtnl_talk(&rth, n, NULL);
1605 if ((ret < 0) && (errno == EEXIST))
1606 ret = 0;
1607
1608 return ret;
1609 }
1610
1611 static int ipaddr_restore(void)
1612 {
1613 if (ipadd_dump_check_magic())
1614 exit(-1);
1615
1616 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1617 }
1618
1619 void free_nlmsg_chain(struct nlmsg_chain *info)
1620 {
1621 struct nlmsg_list *l, *n;
1622
1623 for (l = info->head; l; l = n) {
1624 n = l->next;
1625 free(l);
1626 }
1627 }
1628
1629 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1630 {
1631 struct nlmsg_list *l, **lp;
1632
1633 lp = &linfo->head;
1634 while ((l = *lp) != NULL) {
1635 int ok = 0;
1636 int missing_net_address = 1;
1637 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1638 struct nlmsg_list *a;
1639
1640 for (a = ainfo->head; a; a = a->next) {
1641 struct nlmsghdr *n = &a->h;
1642 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1643 struct rtattr *tb[IFA_MAX + 1];
1644 unsigned int ifa_flags;
1645
1646 if (ifa->ifa_index != ifi->ifi_index)
1647 continue;
1648 missing_net_address = 0;
1649 if (filter.family && filter.family != ifa->ifa_family)
1650 continue;
1651 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1652 continue;
1653
1654 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1655 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1656
1657 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1658 continue;
1659
1660 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1661 continue;
1662
1663 if (!tb[IFA_LOCAL])
1664 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1665 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1666 continue;
1667
1668 ok = 1;
1669 break;
1670 }
1671 if (missing_net_address &&
1672 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1673 ok = 1;
1674 if (!ok) {
1675 *lp = l->next;
1676 free(l);
1677 } else
1678 lp = &l->next;
1679 }
1680 }
1681
1682 static int ipaddr_flush(void)
1683 {
1684 int round = 0;
1685 char flushb[4096-512];
1686
1687 filter.flushb = flushb;
1688 filter.flushp = 0;
1689 filter.flushe = sizeof(flushb);
1690
1691 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1692 if (rtnl_addrdump_req(&rth, filter.family) < 0) {
1693 perror("Cannot send dump request");
1694 exit(1);
1695 }
1696 filter.flushed = 0;
1697 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1698 stdout, NLM_F_DUMP_INTR) < 0) {
1699 fprintf(stderr, "Flush terminated\n");
1700 exit(1);
1701 }
1702 if (filter.flushed == 0) {
1703 flush_done:
1704 if (show_stats) {
1705 if (round == 0)
1706 printf("Nothing to flush.\n");
1707 else
1708 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1709 }
1710 fflush(stdout);
1711 return 0;
1712 }
1713 round++;
1714 if (flush_update() < 0)
1715 return 1;
1716
1717 if (show_stats) {
1718 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1719 fflush(stdout);
1720 }
1721
1722 /* If we are flushing, and specifying primary, then we
1723 * want to flush only a single round. Otherwise, we'll
1724 * start flushing secondaries that were promoted to
1725 * primaries.
1726 */
1727 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1728 goto flush_done;
1729 }
1730 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1731 fflush(stderr);
1732 return 1;
1733 }
1734
1735 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1736 {
1737 int err;
1738
1739 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1740 if (err)
1741 return err;
1742
1743 if (filter.master) {
1744 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1745 if (err)
1746 return err;
1747 }
1748
1749 if (filter.kind) {
1750 struct rtattr *linkinfo;
1751
1752 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1753
1754 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1755 strlen(filter.kind));
1756 if (err)
1757 return err;
1758
1759 addattr_nest_end(nlh, linkinfo);
1760 }
1761
1762 return 0;
1763 }
1764
1765 /* fills in linfo with link data and optionally ainfo with address info
1766 * caller can walk lists as desired and must call free_nlmsg_chain for
1767 * both when done
1768 */
1769 int ip_linkaddr_list(int family, req_filter_fn_t filter_fn,
1770 struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1771 {
1772 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1773 filter_fn) < 0) {
1774 perror("Cannot send dump request");
1775 return 1;
1776 }
1777
1778 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1779 fprintf(stderr, "Dump terminated\n");
1780 return 1;
1781 }
1782
1783 if (ainfo) {
1784 if (rtnl_addrdump_req(&rth, family) < 0) {
1785 perror("Cannot send dump request");
1786 return 1;
1787 }
1788
1789 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1790 fprintf(stderr, "Dump terminated\n");
1791 return 1;
1792 }
1793 }
1794
1795 return 0;
1796 }
1797
1798 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1799 {
1800 struct nlmsg_chain linfo = { NULL, NULL};
1801 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = NULL;
1802 struct nlmsg_list *l;
1803 char *filter_dev = NULL;
1804 int no_link = 0;
1805
1806 ipaddr_reset_filter(oneline, 0);
1807 filter.showqueue = 1;
1808 filter.family = preferred_family;
1809 filter.group = -1;
1810
1811 if (action == IPADD_FLUSH) {
1812 if (argc <= 0) {
1813 fprintf(stderr, "Flush requires arguments.\n");
1814
1815 return -1;
1816 }
1817 if (filter.family == AF_PACKET) {
1818 fprintf(stderr, "Cannot flush link addresses.\n");
1819 return -1;
1820 }
1821 }
1822
1823 while (argc > 0) {
1824 if (strcmp(*argv, "to") == 0) {
1825 NEXT_ARG();
1826 if (get_prefix(&filter.pfx, *argv, filter.family))
1827 invarg("invalid \"to\"\n", *argv);
1828 if (filter.family == AF_UNSPEC)
1829 filter.family = filter.pfx.family;
1830 } else if (strcmp(*argv, "scope") == 0) {
1831 unsigned int scope = 0;
1832
1833 NEXT_ARG();
1834 filter.scopemask = -1;
1835 if (rtnl_rtscope_a2n(&scope, *argv)) {
1836 if (strcmp(*argv, "all") != 0)
1837 invarg("invalid \"scope\"\n", *argv);
1838 scope = RT_SCOPE_NOWHERE;
1839 filter.scopemask = 0;
1840 }
1841 filter.scope = scope;
1842 } else if (strcmp(*argv, "up") == 0) {
1843 filter.up = 1;
1844 } else if (get_filter(*argv) == 0) {
1845
1846 } else if (strcmp(*argv, "label") == 0) {
1847 NEXT_ARG();
1848 filter.label = *argv;
1849 } else if (strcmp(*argv, "group") == 0) {
1850 NEXT_ARG();
1851 if (rtnl_group_a2n(&filter.group, *argv))
1852 invarg("Invalid \"group\" value\n", *argv);
1853 } else if (strcmp(*argv, "master") == 0) {
1854 int ifindex;
1855
1856 NEXT_ARG();
1857 ifindex = ll_name_to_index(*argv);
1858 if (!ifindex)
1859 invarg("Device does not exist\n", *argv);
1860 filter.master = ifindex;
1861 } else if (strcmp(*argv, "vrf") == 0) {
1862 int ifindex;
1863
1864 NEXT_ARG();
1865 ifindex = ll_name_to_index(*argv);
1866 if (!ifindex)
1867 invarg("Not a valid VRF name\n", *argv);
1868 if (!name_is_vrf(*argv))
1869 invarg("Not a valid VRF name\n", *argv);
1870 filter.master = ifindex;
1871 } else if (strcmp(*argv, "type") == 0) {
1872 int soff;
1873
1874 NEXT_ARG();
1875 soff = strlen(*argv) - strlen("_slave");
1876 if (!strcmp(*argv + soff, "_slave")) {
1877 (*argv)[soff] = '\0';
1878 filter.slave_kind = *argv;
1879 } else {
1880 filter.kind = *argv;
1881 }
1882 } else {
1883 if (strcmp(*argv, "dev") == 0)
1884 NEXT_ARG();
1885 else if (matches(*argv, "help") == 0)
1886 usage();
1887 if (filter_dev)
1888 duparg2("dev", *argv);
1889 filter_dev = *argv;
1890 }
1891 argv++; argc--;
1892 }
1893
1894 if (filter_dev) {
1895 filter.ifindex = ll_name_to_index(filter_dev);
1896 if (filter.ifindex <= 0) {
1897 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1898 return -1;
1899 }
1900 }
1901
1902 if (action == IPADD_FLUSH)
1903 return ipaddr_flush();
1904
1905 if (action == IPADD_SAVE) {
1906 if (ipadd_save_prep())
1907 exit(1);
1908
1909 if (rtnl_addrdump_req(&rth, preferred_family) < 0) {
1910 perror("Cannot send dump request");
1911 exit(1);
1912 }
1913
1914 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1915 fprintf(stderr, "Save terminated\n");
1916 exit(1);
1917 }
1918
1919 exit(0);
1920 }
1921
1922 /*
1923 * Initialize a json_writer and open an array object
1924 * if -json was specified.
1925 */
1926 new_json_obj(json);
1927
1928 /*
1929 * If only filter_dev present and none of the other
1930 * link filters are present, use RTM_GETLINK to get
1931 * the link device
1932 */
1933 if (filter_dev && filter.group == -1 && do_link == 1) {
1934 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
1935 perror("Cannot send link get request");
1936 delete_json_obj();
1937 exit(1);
1938 }
1939 delete_json_obj();
1940 goto out;
1941 }
1942
1943 if (filter.family != AF_PACKET) {
1944 ainfo = &_ainfo;
1945
1946 if (filter.oneline)
1947 no_link = 1;
1948 }
1949
1950 if (ip_linkaddr_list(filter.family, iplink_filter_req,
1951 &linfo, ainfo) != 0)
1952 goto out;
1953
1954 if (filter.family != AF_PACKET)
1955 ipaddr_filter(&linfo, ainfo);
1956
1957 for (l = linfo.head; l; l = l->next) {
1958 struct nlmsghdr *n = &l->h;
1959 struct ifinfomsg *ifi = NLMSG_DATA(n);
1960 int res = 0;
1961
1962 open_json_object(NULL);
1963 if (brief || !no_link)
1964 res = print_linkinfo(n, stdout);
1965 if (res >= 0 && filter.family != AF_PACKET)
1966 print_selected_addrinfo(ifi, ainfo->head, stdout);
1967 if (res > 0 && !do_link && show_stats)
1968 print_link_stats(stdout, n);
1969 close_json_object();
1970 }
1971 fflush(stdout);
1972
1973 out:
1974 if (ainfo)
1975 free_nlmsg_chain(ainfo);
1976 free_nlmsg_chain(&linfo);
1977 delete_json_obj();
1978 return 0;
1979 }
1980
1981 static void
1982 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
1983 {
1984 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
1985 struct rtattr *i, *vf[IFLA_VF_MAX+1];
1986 struct ifla_vf_rate *vf_rate;
1987 int rem;
1988
1989 rem = RTA_PAYLOAD(vflist);
1990
1991 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1992 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
1993
1994 if (!vf[IFLA_VF_RATE]) {
1995 fprintf(stderr, "VF min/max rate API not supported\n");
1996 exit(1);
1997 }
1998
1999 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2000 if (vf_rate->vf == vfnum) {
2001 *min = vf_rate->min_tx_rate;
2002 *max = vf_rate->max_tx_rate;
2003 return;
2004 }
2005 }
2006 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2007 exit(1);
2008 }
2009
2010 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2011 {
2012 struct nlmsg_chain linfo = { NULL, NULL};
2013 struct rtattr *tb[IFLA_MAX+1];
2014 struct ifinfomsg *ifi;
2015 struct nlmsg_list *l;
2016 struct nlmsghdr *n;
2017 int idx, len;
2018
2019 idx = ll_name_to_index(dev);
2020 if (idx == 0) {
2021 fprintf(stderr, "Device %s does not exist\n", dev);
2022 exit(1);
2023 }
2024
2025 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2026 perror("Cannot send dump request");
2027 exit(1);
2028 }
2029 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2030 fprintf(stderr, "Dump terminated\n");
2031 exit(1);
2032 }
2033 for (l = linfo.head; l; l = l->next) {
2034 n = &l->h;
2035 ifi = NLMSG_DATA(n);
2036
2037 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2038 if (len < 0 || (idx && idx != ifi->ifi_index))
2039 continue;
2040
2041 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2042
2043 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2044 ipaddr_loop_each_vf(tb, vfnum, min, max);
2045 return;
2046 }
2047 }
2048 }
2049
2050 int ipaddr_list_link(int argc, char **argv)
2051 {
2052 preferred_family = AF_PACKET;
2053 do_link = 1;
2054 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2055 }
2056
2057 void ipaddr_reset_filter(int oneline, int ifindex)
2058 {
2059 memset(&filter, 0, sizeof(filter));
2060 filter.oneline = oneline;
2061 filter.ifindex = ifindex;
2062 }
2063
2064 static int default_scope(inet_prefix *lcl)
2065 {
2066 if (lcl->family == AF_INET) {
2067 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2068 return RT_SCOPE_HOST;
2069 }
2070 return 0;
2071 }
2072
2073 static bool ipaddr_is_multicast(inet_prefix *a)
2074 {
2075 if (a->family == AF_INET)
2076 return IN_MULTICAST(ntohl(a->data[0]));
2077 else if (a->family == AF_INET6)
2078 return IN6_IS_ADDR_MULTICAST(a->data);
2079 else
2080 return false;
2081 }
2082
2083 static bool is_valid_label(const char *dev, const char *label)
2084 {
2085 size_t len = strlen(dev);
2086
2087 if (strncmp(label, dev, len) != 0)
2088 return false;
2089
2090 return label[len] == '\0' || label[len] == ':';
2091 }
2092
2093 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2094 {
2095 struct {
2096 struct nlmsghdr n;
2097 struct ifaddrmsg ifa;
2098 char buf[256];
2099 } req = {
2100 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2101 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2102 .n.nlmsg_type = cmd,
2103 .ifa.ifa_family = preferred_family,
2104 };
2105 char *d = NULL;
2106 char *l = NULL;
2107 char *lcl_arg = NULL;
2108 char *valid_lftp = NULL;
2109 char *preferred_lftp = NULL;
2110 inet_prefix lcl = {};
2111 inet_prefix peer;
2112 int local_len = 0;
2113 int peer_len = 0;
2114 int brd_len = 0;
2115 int any_len = 0;
2116 int scoped = 0;
2117 __u32 preferred_lft = INFINITY_LIFE_TIME;
2118 __u32 valid_lft = INFINITY_LIFE_TIME;
2119 unsigned int ifa_flags = 0;
2120
2121 while (argc > 0) {
2122 if (strcmp(*argv, "peer") == 0 ||
2123 strcmp(*argv, "remote") == 0) {
2124 NEXT_ARG();
2125
2126 if (peer_len)
2127 duparg("peer", *argv);
2128 get_prefix(&peer, *argv, req.ifa.ifa_family);
2129 peer_len = peer.bytelen;
2130 if (req.ifa.ifa_family == AF_UNSPEC)
2131 req.ifa.ifa_family = peer.family;
2132 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2133 req.ifa.ifa_prefixlen = peer.bitlen;
2134 } else if (matches(*argv, "broadcast") == 0 ||
2135 strcmp(*argv, "brd") == 0) {
2136 inet_prefix addr;
2137
2138 NEXT_ARG();
2139 if (brd_len)
2140 duparg("broadcast", *argv);
2141 if (strcmp(*argv, "+") == 0)
2142 brd_len = -1;
2143 else if (strcmp(*argv, "-") == 0)
2144 brd_len = -2;
2145 else {
2146 get_addr(&addr, *argv, req.ifa.ifa_family);
2147 if (req.ifa.ifa_family == AF_UNSPEC)
2148 req.ifa.ifa_family = addr.family;
2149 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2150 brd_len = addr.bytelen;
2151 }
2152 } else if (strcmp(*argv, "anycast") == 0) {
2153 inet_prefix addr;
2154
2155 NEXT_ARG();
2156 if (any_len)
2157 duparg("anycast", *argv);
2158 get_addr(&addr, *argv, req.ifa.ifa_family);
2159 if (req.ifa.ifa_family == AF_UNSPEC)
2160 req.ifa.ifa_family = addr.family;
2161 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2162 any_len = addr.bytelen;
2163 } else if (strcmp(*argv, "scope") == 0) {
2164 unsigned int scope = 0;
2165
2166 NEXT_ARG();
2167 if (rtnl_rtscope_a2n(&scope, *argv))
2168 invarg("invalid scope value.", *argv);
2169 req.ifa.ifa_scope = scope;
2170 scoped = 1;
2171 } else if (strcmp(*argv, "dev") == 0) {
2172 NEXT_ARG();
2173 d = *argv;
2174 } else if (strcmp(*argv, "label") == 0) {
2175 NEXT_ARG();
2176 l = *argv;
2177 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2178 } else if (matches(*argv, "metric") == 0 ||
2179 matches(*argv, "priority") == 0 ||
2180 matches(*argv, "preference") == 0) {
2181 __u32 metric;
2182
2183 NEXT_ARG();
2184 if (get_u32(&metric, *argv, 0))
2185 invarg("\"metric\" value is invalid\n", *argv);
2186 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2187 } else if (matches(*argv, "valid_lft") == 0) {
2188 if (valid_lftp)
2189 duparg("valid_lft", *argv);
2190 NEXT_ARG();
2191 valid_lftp = *argv;
2192 if (set_lifetime(&valid_lft, *argv))
2193 invarg("valid_lft value", *argv);
2194 } else if (matches(*argv, "preferred_lft") == 0) {
2195 if (preferred_lftp)
2196 duparg("preferred_lft", *argv);
2197 NEXT_ARG();
2198 preferred_lftp = *argv;
2199 if (set_lifetime(&preferred_lft, *argv))
2200 invarg("preferred_lft value", *argv);
2201 } else if (strcmp(*argv, "home") == 0) {
2202 ifa_flags |= IFA_F_HOMEADDRESS;
2203 } else if (strcmp(*argv, "nodad") == 0) {
2204 ifa_flags |= IFA_F_NODAD;
2205 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2206 ifa_flags |= IFA_F_MANAGETEMPADDR;
2207 } else if (strcmp(*argv, "noprefixroute") == 0) {
2208 ifa_flags |= IFA_F_NOPREFIXROUTE;
2209 } else if (strcmp(*argv, "autojoin") == 0) {
2210 ifa_flags |= IFA_F_MCAUTOJOIN;
2211 } else {
2212 if (strcmp(*argv, "local") == 0)
2213 NEXT_ARG();
2214 if (matches(*argv, "help") == 0)
2215 usage();
2216 if (local_len)
2217 duparg2("local", *argv);
2218 lcl_arg = *argv;
2219 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2220 if (req.ifa.ifa_family == AF_UNSPEC)
2221 req.ifa.ifa_family = lcl.family;
2222 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2223 local_len = lcl.bytelen;
2224 }
2225 argc--; argv++;
2226 }
2227 if (ifa_flags <= 0xff)
2228 req.ifa.ifa_flags = ifa_flags;
2229 else
2230 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2231
2232 if (d == NULL) {
2233 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2234 return -1;
2235 }
2236 if (l && !is_valid_label(d, l)) {
2237 fprintf(stderr,
2238 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2239 l, d);
2240 return -1;
2241 }
2242
2243 if (peer_len == 0 && local_len) {
2244 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2245 fprintf(stderr,
2246 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2247 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2248 " This special behaviour is likely to disappear in further releases,\n"
2249 " fix your scripts!\n", lcl_arg, local_len*8);
2250 } else {
2251 peer = lcl;
2252 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2253 }
2254 }
2255 if (req.ifa.ifa_prefixlen == 0)
2256 req.ifa.ifa_prefixlen = lcl.bitlen;
2257
2258 if (brd_len < 0 && cmd != RTM_DELADDR) {
2259 inet_prefix brd;
2260 int i;
2261
2262 if (req.ifa.ifa_family != AF_INET) {
2263 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2264 return -1;
2265 }
2266 brd = peer;
2267 if (brd.bitlen <= 30) {
2268 for (i = 31; i >= brd.bitlen; i--) {
2269 if (brd_len == -1)
2270 brd.data[0] |= htonl(1<<(31-i));
2271 else
2272 brd.data[0] &= ~htonl(1<<(31-i));
2273 }
2274 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2275 brd_len = brd.bytelen;
2276 }
2277 }
2278 if (!scoped && cmd != RTM_DELADDR)
2279 req.ifa.ifa_scope = default_scope(&lcl);
2280
2281 req.ifa.ifa_index = ll_name_to_index(d);
2282 if (!req.ifa.ifa_index)
2283 return nodev(d);
2284
2285 if (valid_lftp || preferred_lftp) {
2286 struct ifa_cacheinfo cinfo = {};
2287
2288 if (!valid_lft) {
2289 fprintf(stderr, "valid_lft is zero\n");
2290 return -1;
2291 }
2292 if (valid_lft < preferred_lft) {
2293 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2294 return -1;
2295 }
2296
2297 cinfo.ifa_prefered = preferred_lft;
2298 cinfo.ifa_valid = valid_lft;
2299 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2300 sizeof(cinfo));
2301 }
2302
2303 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2304 fprintf(stderr, "autojoin needs multicast address\n");
2305 return -1;
2306 }
2307
2308 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2309 return -2;
2310
2311 return 0;
2312 }
2313
2314 int do_ipaddr(int argc, char **argv)
2315 {
2316 if (argc < 1)
2317 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2318 if (matches(*argv, "add") == 0)
2319 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2320 if (matches(*argv, "change") == 0 ||
2321 strcmp(*argv, "chg") == 0)
2322 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2323 if (matches(*argv, "replace") == 0)
2324 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2325 if (matches(*argv, "delete") == 0)
2326 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2327 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2328 || matches(*argv, "lst") == 0)
2329 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2330 if (matches(*argv, "flush") == 0)
2331 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2332 if (matches(*argv, "save") == 0)
2333 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2334 if (matches(*argv, "showdump") == 0)
2335 return ipaddr_showdump();
2336 if (matches(*argv, "restore") == 0)
2337 return ipaddr_restore();
2338 if (matches(*argv, "help") == 0)
2339 usage();
2340 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2341 exit(-1);
2342 }
Upstream mirror of iproute2