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Merge branch 'master' into iproute2-next
[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(const struct sockaddr_nl *who,
828 struct nlmsghdr *n, void *arg)
829 {
830 FILE *fp = (FILE *)arg;
831 struct ifinfomsg *ifi = NLMSG_DATA(n);
832 struct rtattr *tb[IFLA_MAX+1];
833 int len = n->nlmsg_len;
834 const char *name;
835 unsigned int m_flag = 0;
836 SPRINT_BUF(b1);
837
838 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
839 return 0;
840
841 len -= NLMSG_LENGTH(sizeof(*ifi));
842 if (len < 0)
843 return -1;
844
845 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
846 return -1;
847 if (filter.up && !(ifi->ifi_flags&IFF_UP))
848 return -1;
849
850 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
851
852 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
853 if (!name)
854 return -1;
855
856 if (filter.label)
857 return 0;
858
859 if (tb[IFLA_GROUP]) {
860 int group = rta_getattr_u32(tb[IFLA_GROUP]);
861
862 if (filter.group != -1 && group != filter.group)
863 return -1;
864 }
865
866 if (tb[IFLA_MASTER]) {
867 int master = rta_getattr_u32(tb[IFLA_MASTER]);
868
869 if (filter.master > 0 && master != filter.master)
870 return -1;
871 } else if (filter.master > 0)
872 return -1;
873
874 if (filter.kind && match_link_kind(tb, filter.kind, 0))
875 return -1;
876
877 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
878 return -1;
879
880 if (n->nlmsg_type == RTM_DELLINK)
881 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
882
883 if (brief)
884 return print_linkinfo_brief(fp, name, ifi, tb);
885
886 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
887
888 m_flag = print_name_and_link("%s: ", name, tb);
889 print_link_flags(fp, ifi->ifi_flags, m_flag);
890
891 if (tb[IFLA_MTU])
892 print_int(PRINT_ANY,
893 "mtu", "mtu %u ",
894 rta_getattr_u32(tb[IFLA_MTU]));
895 if (tb[IFLA_XDP])
896 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
897 if (tb[IFLA_QDISC])
898 print_string(PRINT_ANY,
899 "qdisc",
900 "qdisc %s ",
901 rta_getattr_str(tb[IFLA_QDISC]));
902 if (tb[IFLA_MASTER]) {
903 int master = rta_getattr_u32(tb[IFLA_MASTER]);
904
905 print_string(PRINT_ANY,
906 "master", "master %s ",
907 ll_index_to_name(master));
908 }
909
910 if (tb[IFLA_OPERSTATE])
911 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
912
913 if (do_link && tb[IFLA_LINKMODE])
914 print_linkmode(fp, tb[IFLA_LINKMODE]);
915
916 if (tb[IFLA_GROUP]) {
917 int group = rta_getattr_u32(tb[IFLA_GROUP]);
918
919 print_string(PRINT_ANY,
920 "group",
921 "group %s ",
922 rtnl_group_n2a(group, b1, sizeof(b1)));
923 }
924
925 if (filter.showqueue)
926 print_queuelen(fp, tb);
927
928 if (tb[IFLA_EVENT])
929 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
930
931 if (!filter.family || filter.family == AF_PACKET || show_details) {
932 print_nl();
933 print_string(PRINT_ANY,
934 "link_type",
935 " link/%s ",
936 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
937 if (tb[IFLA_ADDRESS]) {
938 print_color_string(PRINT_ANY,
939 COLOR_MAC,
940 "address",
941 "%s",
942 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
943 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
944 ifi->ifi_type,
945 b1, sizeof(b1)));
946 }
947 if (tb[IFLA_BROADCAST]) {
948 if (ifi->ifi_flags&IFF_POINTOPOINT) {
949 print_string(PRINT_FP, NULL, " peer ", NULL);
950 print_bool(PRINT_JSON,
951 "link_pointtopoint", NULL, true);
952 } else {
953 print_string(PRINT_FP, NULL, " brd ", NULL);
954 }
955 print_color_string(PRINT_ANY,
956 COLOR_MAC,
957 "broadcast",
958 "%s",
959 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
960 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
961 ifi->ifi_type,
962 b1, sizeof(b1)));
963 }
964 }
965
966 if (tb[IFLA_LINK_NETNSID]) {
967 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
968
969 if (is_json_context()) {
970 print_int(PRINT_JSON, "link_netnsid", NULL, id);
971 } else {
972 if (id >= 0) {
973 char *name = get_name_from_nsid(id);
974
975 if (name)
976 print_string(PRINT_FP, NULL,
977 " link-netns %s", name);
978 else
979 print_int(PRINT_FP, NULL,
980 " link-netnsid %d", id);
981 } else
982 print_string(PRINT_FP, NULL,
983 " link-netnsid %s", "unknown");
984 }
985 }
986
987 if (tb[IFLA_NEW_NETNSID]) {
988 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
989 char *name = get_name_from_nsid(id);
990
991 if (name)
992 print_string(PRINT_FP, NULL, " new-netns %s", name);
993 else
994 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
995 }
996 if (tb[IFLA_NEW_IFINDEX]) {
997 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
998
999 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1000 }
1001
1002 if (tb[IFLA_PROTO_DOWN]) {
1003 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1004 print_bool(PRINT_ANY,
1005 "proto_down", " protodown on ", true);
1006 }
1007
1008 if (show_details) {
1009 if (tb[IFLA_PROMISCUITY])
1010 print_uint(PRINT_ANY,
1011 "promiscuity",
1012 " promiscuity %u ",
1013 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1014
1015 if (tb[IFLA_MIN_MTU])
1016 print_uint(PRINT_ANY,
1017 "min_mtu", "minmtu %u ",
1018 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1019
1020 if (tb[IFLA_MAX_MTU])
1021 print_uint(PRINT_ANY,
1022 "max_mtu", "maxmtu %u ",
1023 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1024
1025 if (tb[IFLA_LINKINFO])
1026 print_linktype(fp, tb[IFLA_LINKINFO]);
1027
1028 if (do_link && tb[IFLA_AF_SPEC])
1029 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1030
1031 if (tb[IFLA_NUM_TX_QUEUES])
1032 print_uint(PRINT_ANY,
1033 "num_tx_queues",
1034 "numtxqueues %u ",
1035 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1036
1037 if (tb[IFLA_NUM_RX_QUEUES])
1038 print_uint(PRINT_ANY,
1039 "num_rx_queues",
1040 "numrxqueues %u ",
1041 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1042
1043 if (tb[IFLA_GSO_MAX_SIZE])
1044 print_uint(PRINT_ANY,
1045 "gso_max_size",
1046 "gso_max_size %u ",
1047 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1048
1049 if (tb[IFLA_GSO_MAX_SEGS])
1050 print_uint(PRINT_ANY,
1051 "gso_max_segs",
1052 "gso_max_segs %u ",
1053 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1054
1055 if (tb[IFLA_PHYS_PORT_NAME])
1056 print_string(PRINT_ANY,
1057 "phys_port_name",
1058 "portname %s ",
1059 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1060
1061 if (tb[IFLA_PHYS_PORT_ID]) {
1062 print_string(PRINT_ANY,
1063 "phys_port_id",
1064 "portid %s ",
1065 hexstring_n2a(
1066 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1067 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1068 b1, sizeof(b1)));
1069 }
1070
1071 if (tb[IFLA_PHYS_SWITCH_ID]) {
1072 print_string(PRINT_ANY,
1073 "phys_switch_id",
1074 "switchid %s ",
1075 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1076 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1077 b1, sizeof(b1)));
1078 }
1079 }
1080
1081 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1082 print_string(PRINT_FP, NULL, "%s ", _SL_);
1083 print_string(PRINT_ANY,
1084 "ifalias",
1085 "alias %s",
1086 rta_getattr_str(tb[IFLA_IFALIAS]));
1087 }
1088
1089 if ((do_link || show_details) && tb[IFLA_XDP])
1090 xdp_dump(fp, tb[IFLA_XDP], true, true);
1091
1092 if (do_link && show_stats) {
1093 print_nl();
1094 __print_link_stats(fp, tb);
1095 }
1096
1097 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1098 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1099 int rem = RTA_PAYLOAD(vflist);
1100
1101 open_json_array(PRINT_JSON, "vfinfo_list");
1102 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1103 open_json_object(NULL);
1104 print_vfinfo(fp, i);
1105 close_json_object();
1106 }
1107 close_json_array(PRINT_JSON, NULL);
1108 }
1109
1110 print_string(PRINT_FP, NULL, "%s", "\n");
1111 fflush(fp);
1112 return 1;
1113 }
1114
1115 static int flush_update(void)
1116 {
1117
1118 /*
1119 * Note that the kernel may delete multiple addresses for one
1120 * delete request (e.g. if ipv4 address promotion is disabled).
1121 * Since a flush operation is really a series of delete requests
1122 * its possible that we may request an address delete that has
1123 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1124 * errors returned from a flush request
1125 */
1126 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1127 (errno != EADDRNOTAVAIL)) {
1128 perror("Failed to send flush request");
1129 return -1;
1130 }
1131 filter.flushp = 0;
1132 return 0;
1133 }
1134
1135 static int set_lifetime(unsigned int *lifetime, char *argv)
1136 {
1137 if (strcmp(argv, "forever") == 0)
1138 *lifetime = INFINITY_LIFE_TIME;
1139 else if (get_u32(lifetime, argv, 0))
1140 return -1;
1141
1142 return 0;
1143 }
1144
1145 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1146 struct rtattr *ifa_flags_attr)
1147 {
1148 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1149 ifa->ifa_flags;
1150 }
1151
1152 /* Mapping from argument to address flag mask */
1153 struct {
1154 const char *name;
1155 unsigned long value;
1156 } ifa_flag_names[] = {
1157 { "secondary", IFA_F_SECONDARY },
1158 { "temporary", IFA_F_SECONDARY },
1159 { "nodad", IFA_F_NODAD },
1160 { "optimistic", IFA_F_OPTIMISTIC },
1161 { "dadfailed", IFA_F_DADFAILED },
1162 { "home", IFA_F_HOMEADDRESS },
1163 { "deprecated", IFA_F_DEPRECATED },
1164 { "tentative", IFA_F_TENTATIVE },
1165 { "permanent", IFA_F_PERMANENT },
1166 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1167 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1168 { "autojoin", IFA_F_MCAUTOJOIN },
1169 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1170 };
1171
1172 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1173 unsigned int flags)
1174 {
1175 unsigned int i;
1176
1177 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1178 unsigned long mask = ifa_flag_names[i].value;
1179
1180 if (mask == IFA_F_PERMANENT) {
1181 if (!(flags & mask))
1182 print_bool(PRINT_ANY,
1183 "dynamic", "dynamic ", true);
1184 } else if (flags & mask) {
1185 if (mask == IFA_F_SECONDARY &&
1186 ifa->ifa_family == AF_INET6) {
1187 print_bool(PRINT_ANY,
1188 "temporary", "temporary ", true);
1189 } else {
1190 print_string(PRINT_FP, NULL,
1191 "%s ", ifa_flag_names[i].name);
1192 print_bool(PRINT_JSON,
1193 ifa_flag_names[i].name, NULL, true);
1194 }
1195 }
1196
1197 flags &= ~mask;
1198 }
1199
1200 if (flags) {
1201 if (is_json_context()) {
1202 SPRINT_BUF(b1);
1203
1204 snprintf(b1, sizeof(b1), "%02x", flags);
1205 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1206 } else {
1207 fprintf(fp, "flags %02x ", flags);
1208 }
1209 }
1210
1211 }
1212
1213 static int get_filter(const char *arg)
1214 {
1215 unsigned int i;
1216
1217 /* Special cases */
1218 if (strcmp(arg, "dynamic") == 0) {
1219 filter.flags &= ~IFA_F_PERMANENT;
1220 filter.flagmask |= IFA_F_PERMANENT;
1221 } else if (strcmp(arg, "primary") == 0) {
1222 filter.flags &= ~IFA_F_SECONDARY;
1223 filter.flagmask |= IFA_F_SECONDARY;
1224 } else if (*arg == '-') {
1225 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1226 if (strcmp(arg + 1, ifa_flag_names[i].name))
1227 continue;
1228
1229 filter.flags &= ifa_flag_names[i].value;
1230 filter.flagmask |= ifa_flag_names[i].value;
1231 return 0;
1232 }
1233
1234 return -1;
1235 } else {
1236 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1237 if (strcmp(arg, ifa_flag_names[i].name))
1238 continue;
1239 filter.flags |= ifa_flag_names[i].value;
1240 filter.flagmask |= ifa_flag_names[i].value;
1241 return 0;
1242 }
1243 return -1;
1244 }
1245
1246 return 0;
1247 }
1248
1249 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1250 {
1251 const char *label;
1252
1253 if (!filter.label)
1254 return 0;
1255
1256 if (rta)
1257 label = RTA_DATA(rta);
1258 else
1259 label = ll_index_to_name(ifindex);
1260
1261 return fnmatch(filter.label, label, 0);
1262 }
1263
1264 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
1265 void *arg)
1266 {
1267 FILE *fp = arg;
1268 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1269 int len = n->nlmsg_len;
1270 unsigned int ifa_flags;
1271 struct rtattr *rta_tb[IFA_MAX+1];
1272
1273 SPRINT_BUF(b1);
1274
1275 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1276 return 0;
1277 len -= NLMSG_LENGTH(sizeof(*ifa));
1278 if (len < 0) {
1279 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1280 return -1;
1281 }
1282
1283 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1284 return 0;
1285
1286 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1287 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1288
1289 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1290
1291 if (!rta_tb[IFA_LOCAL])
1292 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1293 if (!rta_tb[IFA_ADDRESS])
1294 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1295
1296 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1297 return 0;
1298 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1299 return 0;
1300 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1301 return 0;
1302
1303 if (filter.family && filter.family != ifa->ifa_family)
1304 return 0;
1305
1306 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1307 return 0;
1308
1309 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1310 return 0;
1311
1312 if (filter.flushb) {
1313 struct nlmsghdr *fn;
1314
1315 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1316 if (flush_update())
1317 return -1;
1318 }
1319 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1320 memcpy(fn, n, n->nlmsg_len);
1321 fn->nlmsg_type = RTM_DELADDR;
1322 fn->nlmsg_flags = NLM_F_REQUEST;
1323 fn->nlmsg_seq = ++rth.seq;
1324 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1325 filter.flushed++;
1326 if (show_stats < 2)
1327 return 0;
1328 }
1329
1330 if (n->nlmsg_type == RTM_DELADDR)
1331 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1332
1333 if (!brief) {
1334 const char *name;
1335
1336 if (filter.oneline || filter.flushb) {
1337 const char *dev = ll_index_to_name(ifa->ifa_index);
1338
1339 if (is_json_context()) {
1340 print_int(PRINT_JSON,
1341 "index", NULL, ifa->ifa_index);
1342 print_string(PRINT_JSON, "dev", NULL, dev);
1343 } else {
1344 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1345 }
1346 }
1347
1348 name = family_name(ifa->ifa_family);
1349 if (*name != '?') {
1350 print_string(PRINT_ANY, "family", " %s ", name);
1351 } else {
1352 print_int(PRINT_ANY, "family_index", " family %d ",
1353 ifa->ifa_family);
1354 }
1355 }
1356
1357 if (rta_tb[IFA_LOCAL]) {
1358 print_color_string(PRINT_ANY,
1359 ifa_family_color(ifa->ifa_family),
1360 "local", "%s",
1361 format_host_rta(ifa->ifa_family,
1362 rta_tb[IFA_LOCAL]));
1363 if (rta_tb[IFA_ADDRESS] &&
1364 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1365 RTA_DATA(rta_tb[IFA_LOCAL]),
1366 ifa->ifa_family == AF_INET ? 4 : 16)) {
1367 print_string(PRINT_FP, NULL, " %s ", "peer");
1368 print_color_string(PRINT_ANY,
1369 ifa_family_color(ifa->ifa_family),
1370 "address",
1371 "%s",
1372 format_host_rta(ifa->ifa_family,
1373 rta_tb[IFA_ADDRESS]));
1374 }
1375 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1376
1377 if (rta_tb[IFA_RT_PRIORITY])
1378 print_uint(PRINT_ANY, "metric", "metric %u ",
1379 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1380 }
1381
1382 if (brief)
1383 goto brief_exit;
1384
1385 if (rta_tb[IFA_BROADCAST]) {
1386 print_string(PRINT_FP, NULL, "%s ", "brd");
1387 print_color_string(PRINT_ANY,
1388 ifa_family_color(ifa->ifa_family),
1389 "broadcast",
1390 "%s ",
1391 format_host_rta(ifa->ifa_family,
1392 rta_tb[IFA_BROADCAST]));
1393 }
1394
1395 if (rta_tb[IFA_ANYCAST]) {
1396 print_string(PRINT_FP, NULL, "%s ", "any");
1397 print_color_string(PRINT_ANY,
1398 ifa_family_color(ifa->ifa_family),
1399 "anycast",
1400 "%s ",
1401 format_host_rta(ifa->ifa_family,
1402 rta_tb[IFA_ANYCAST]));
1403 }
1404
1405 print_string(PRINT_ANY,
1406 "scope",
1407 "scope %s ",
1408 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1409
1410 print_ifa_flags(fp, ifa, ifa_flags);
1411
1412 if (rta_tb[IFA_LABEL])
1413 print_string(PRINT_ANY,
1414 "label",
1415 "%s",
1416 rta_getattr_str(rta_tb[IFA_LABEL]));
1417
1418 if (rta_tb[IFA_CACHEINFO]) {
1419 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1420
1421 print_nl();
1422 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1423
1424 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1425 print_uint(PRINT_JSON,
1426 "valid_life_time",
1427 NULL, INFINITY_LIFE_TIME);
1428 print_string(PRINT_FP, NULL, "%s", "forever");
1429 } else {
1430 print_uint(PRINT_ANY,
1431 "valid_life_time", "%usec", ci->ifa_valid);
1432 }
1433
1434 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1435 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1436 print_uint(PRINT_JSON,
1437 "preferred_life_time",
1438 NULL, INFINITY_LIFE_TIME);
1439 print_string(PRINT_FP, NULL, "%s", "forever");
1440 } else {
1441 if (ifa_flags & IFA_F_DEPRECATED)
1442 print_int(PRINT_ANY,
1443 "preferred_life_time",
1444 "%dsec",
1445 ci->ifa_prefered);
1446 else
1447 print_uint(PRINT_ANY,
1448 "preferred_life_time",
1449 "%usec",
1450 ci->ifa_prefered);
1451 }
1452 }
1453 print_string(PRINT_FP, NULL, "%s", "\n");
1454 brief_exit:
1455 fflush(fp);
1456 return 0;
1457 }
1458
1459 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1460 struct nlmsg_list *ainfo, FILE *fp)
1461 {
1462 open_json_array(PRINT_JSON, "addr_info");
1463 for ( ; ainfo ; ainfo = ainfo->next) {
1464 struct nlmsghdr *n = &ainfo->h;
1465 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1466
1467 if (n->nlmsg_type != RTM_NEWADDR)
1468 continue;
1469
1470 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1471 return -1;
1472
1473 if (ifa->ifa_index != ifi->ifi_index ||
1474 (filter.family && filter.family != ifa->ifa_family))
1475 continue;
1476
1477 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1478 continue;
1479
1480 open_json_object(NULL);
1481 print_addrinfo(NULL, n, fp);
1482 close_json_object();
1483 }
1484 close_json_array(PRINT_JSON, NULL);
1485
1486 if (brief) {
1487 print_string(PRINT_FP, NULL, "%s", "\n");
1488 fflush(fp);
1489 }
1490 return 0;
1491 }
1492
1493
1494 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1495 void *arg)
1496 {
1497 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1498 struct nlmsg_list *h;
1499
1500 h = malloc(n->nlmsg_len+sizeof(void *));
1501 if (h == NULL)
1502 return -1;
1503
1504 memcpy(&h->h, n, n->nlmsg_len);
1505 h->next = NULL;
1506
1507 if (lchain->tail)
1508 lchain->tail->next = h;
1509 else
1510 lchain->head = h;
1511 lchain->tail = h;
1512
1513 ll_remember_index(who, n, NULL);
1514 return 0;
1515 }
1516
1517 static __u32 ipadd_dump_magic = 0x47361222;
1518
1519 static int ipadd_save_prep(void)
1520 {
1521 int ret;
1522
1523 if (isatty(STDOUT_FILENO)) {
1524 fprintf(stderr, "Not sending a binary stream to stdout\n");
1525 return -1;
1526 }
1527
1528 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1529 if (ret != sizeof(ipadd_dump_magic)) {
1530 fprintf(stderr, "Can't write magic to dump file\n");
1531 return -1;
1532 }
1533
1534 return 0;
1535 }
1536
1537 static int ipadd_dump_check_magic(void)
1538 {
1539 int ret;
1540 __u32 magic = 0;
1541
1542 if (isatty(STDIN_FILENO)) {
1543 fprintf(stderr, "Can't restore address dump from a terminal\n");
1544 return -1;
1545 }
1546
1547 ret = fread(&magic, sizeof(magic), 1, stdin);
1548 if (magic != ipadd_dump_magic) {
1549 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1550 return -1;
1551 }
1552
1553 return 0;
1554 }
1555
1556 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1557 void *arg)
1558 {
1559 int ret;
1560
1561 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1562 if ((ret > 0) && (ret != n->nlmsg_len)) {
1563 fprintf(stderr, "Short write while saving nlmsg\n");
1564 ret = -EIO;
1565 }
1566
1567 return ret == n->nlmsg_len ? 0 : ret;
1568 }
1569
1570 static int show_handler(const struct sockaddr_nl *nl,
1571 struct rtnl_ctrl_data *ctrl,
1572 struct nlmsghdr *n, void *arg)
1573 {
1574 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1575
1576 open_json_object(NULL);
1577 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1578 print_addrinfo(NULL, n, stdout);
1579 close_json_object();
1580 return 0;
1581 }
1582
1583 static int ipaddr_showdump(void)
1584 {
1585 int err;
1586
1587 if (ipadd_dump_check_magic())
1588 exit(-1);
1589
1590 new_json_obj(json);
1591 open_json_object(NULL);
1592 open_json_array(PRINT_JSON, "addr_info");
1593
1594 err = rtnl_from_file(stdin, &show_handler, NULL);
1595
1596 close_json_array(PRINT_JSON, NULL);
1597 close_json_object();
1598 delete_json_obj();
1599
1600 exit(err);
1601 }
1602
1603 static int restore_handler(const struct sockaddr_nl *nl,
1604 struct rtnl_ctrl_data *ctrl,
1605 struct nlmsghdr *n, void *arg)
1606 {
1607 int ret;
1608
1609 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1610
1611 ll_init_map(&rth);
1612
1613 ret = rtnl_talk(&rth, n, NULL);
1614 if ((ret < 0) && (errno == EEXIST))
1615 ret = 0;
1616
1617 return ret;
1618 }
1619
1620 static int ipaddr_restore(void)
1621 {
1622 if (ipadd_dump_check_magic())
1623 exit(-1);
1624
1625 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1626 }
1627
1628 void free_nlmsg_chain(struct nlmsg_chain *info)
1629 {
1630 struct nlmsg_list *l, *n;
1631
1632 for (l = info->head; l; l = n) {
1633 n = l->next;
1634 free(l);
1635 }
1636 }
1637
1638 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1639 {
1640 struct nlmsg_list *l, **lp;
1641
1642 lp = &linfo->head;
1643 while ((l = *lp) != NULL) {
1644 int ok = 0;
1645 int missing_net_address = 1;
1646 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1647 struct nlmsg_list *a;
1648
1649 for (a = ainfo->head; a; a = a->next) {
1650 struct nlmsghdr *n = &a->h;
1651 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1652 struct rtattr *tb[IFA_MAX + 1];
1653 unsigned int ifa_flags;
1654
1655 if (ifa->ifa_index != ifi->ifi_index)
1656 continue;
1657 missing_net_address = 0;
1658 if (filter.family && filter.family != ifa->ifa_family)
1659 continue;
1660 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1661 continue;
1662
1663 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1664 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1665
1666 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1667 continue;
1668
1669 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1670 continue;
1671
1672 if (!tb[IFA_LOCAL])
1673 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1674 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1675 continue;
1676
1677 ok = 1;
1678 break;
1679 }
1680 if (missing_net_address &&
1681 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1682 ok = 1;
1683 if (!ok) {
1684 *lp = l->next;
1685 free(l);
1686 } else
1687 lp = &l->next;
1688 }
1689 }
1690
1691 static int ipaddr_flush(void)
1692 {
1693 int round = 0;
1694 char flushb[4096-512];
1695
1696 filter.flushb = flushb;
1697 filter.flushp = 0;
1698 filter.flushe = sizeof(flushb);
1699
1700 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1701 if (rtnl_addrdump_req(&rth, filter.family) < 0) {
1702 perror("Cannot send dump request");
1703 exit(1);
1704 }
1705 filter.flushed = 0;
1706 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1707 stdout, NLM_F_DUMP_INTR) < 0) {
1708 fprintf(stderr, "Flush terminated\n");
1709 exit(1);
1710 }
1711 if (filter.flushed == 0) {
1712 flush_done:
1713 if (show_stats) {
1714 if (round == 0)
1715 printf("Nothing to flush.\n");
1716 else
1717 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1718 }
1719 fflush(stdout);
1720 return 0;
1721 }
1722 round++;
1723 if (flush_update() < 0)
1724 return 1;
1725
1726 if (show_stats) {
1727 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1728 fflush(stdout);
1729 }
1730
1731 /* If we are flushing, and specifying primary, then we
1732 * want to flush only a single round. Otherwise, we'll
1733 * start flushing secondaries that were promoted to
1734 * primaries.
1735 */
1736 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1737 goto flush_done;
1738 }
1739 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1740 fflush(stderr);
1741 return 1;
1742 }
1743
1744 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1745 {
1746 int err;
1747
1748 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1749 if (err)
1750 return err;
1751
1752 if (filter.master) {
1753 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1754 if (err)
1755 return err;
1756 }
1757
1758 if (filter.kind) {
1759 struct rtattr *linkinfo;
1760
1761 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1762
1763 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1764 strlen(filter.kind));
1765 if (err)
1766 return err;
1767
1768 addattr_nest_end(nlh, linkinfo);
1769 }
1770
1771 return 0;
1772 }
1773
1774 /* fills in linfo with link data and optionally ainfo with address info
1775 * caller can walk lists as desired and must call free_nlmsg_chain for
1776 * both when done
1777 */
1778 int ip_linkaddr_list(int family, req_filter_fn_t filter_fn,
1779 struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1780 {
1781 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1782 filter_fn) < 0) {
1783 perror("Cannot send dump request");
1784 return 1;
1785 }
1786
1787 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1788 fprintf(stderr, "Dump terminated\n");
1789 return 1;
1790 }
1791
1792 if (ainfo) {
1793 if (rtnl_addrdump_req(&rth, family) < 0) {
1794 perror("Cannot send dump request");
1795 return 1;
1796 }
1797
1798 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1799 fprintf(stderr, "Dump terminated\n");
1800 return 1;
1801 }
1802 }
1803
1804 return 0;
1805 }
1806
1807 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1808 {
1809 struct nlmsg_chain linfo = { NULL, NULL};
1810 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = NULL;
1811 struct nlmsg_list *l;
1812 char *filter_dev = NULL;
1813 int no_link = 0;
1814
1815 ipaddr_reset_filter(oneline, 0);
1816 filter.showqueue = 1;
1817 filter.family = preferred_family;
1818 filter.group = -1;
1819
1820 if (action == IPADD_FLUSH) {
1821 if (argc <= 0) {
1822 fprintf(stderr, "Flush requires arguments.\n");
1823
1824 return -1;
1825 }
1826 if (filter.family == AF_PACKET) {
1827 fprintf(stderr, "Cannot flush link addresses.\n");
1828 return -1;
1829 }
1830 }
1831
1832 while (argc > 0) {
1833 if (strcmp(*argv, "to") == 0) {
1834 NEXT_ARG();
1835 if (get_prefix(&filter.pfx, *argv, filter.family))
1836 invarg("invalid \"to\"\n", *argv);
1837 if (filter.family == AF_UNSPEC)
1838 filter.family = filter.pfx.family;
1839 } else if (strcmp(*argv, "scope") == 0) {
1840 unsigned int scope = 0;
1841
1842 NEXT_ARG();
1843 filter.scopemask = -1;
1844 if (rtnl_rtscope_a2n(&scope, *argv)) {
1845 if (strcmp(*argv, "all") != 0)
1846 invarg("invalid \"scope\"\n", *argv);
1847 scope = RT_SCOPE_NOWHERE;
1848 filter.scopemask = 0;
1849 }
1850 filter.scope = scope;
1851 } else if (strcmp(*argv, "up") == 0) {
1852 filter.up = 1;
1853 } else if (get_filter(*argv) == 0) {
1854
1855 } else if (strcmp(*argv, "label") == 0) {
1856 NEXT_ARG();
1857 filter.label = *argv;
1858 } else if (strcmp(*argv, "group") == 0) {
1859 NEXT_ARG();
1860 if (rtnl_group_a2n(&filter.group, *argv))
1861 invarg("Invalid \"group\" value\n", *argv);
1862 } else if (strcmp(*argv, "master") == 0) {
1863 int ifindex;
1864
1865 NEXT_ARG();
1866 ifindex = ll_name_to_index(*argv);
1867 if (!ifindex)
1868 invarg("Device does not exist\n", *argv);
1869 filter.master = ifindex;
1870 } else if (strcmp(*argv, "vrf") == 0) {
1871 int ifindex;
1872
1873 NEXT_ARG();
1874 ifindex = ll_name_to_index(*argv);
1875 if (!ifindex)
1876 invarg("Not a valid VRF name\n", *argv);
1877 if (!name_is_vrf(*argv))
1878 invarg("Not a valid VRF name\n", *argv);
1879 filter.master = ifindex;
1880 } else if (strcmp(*argv, "type") == 0) {
1881 int soff;
1882
1883 NEXT_ARG();
1884 soff = strlen(*argv) - strlen("_slave");
1885 if (!strcmp(*argv + soff, "_slave")) {
1886 (*argv)[soff] = '\0';
1887 filter.slave_kind = *argv;
1888 } else {
1889 filter.kind = *argv;
1890 }
1891 } else {
1892 if (strcmp(*argv, "dev") == 0)
1893 NEXT_ARG();
1894 else if (matches(*argv, "help") == 0)
1895 usage();
1896 if (filter_dev)
1897 duparg2("dev", *argv);
1898 filter_dev = *argv;
1899 }
1900 argv++; argc--;
1901 }
1902
1903 if (filter_dev) {
1904 filter.ifindex = ll_name_to_index(filter_dev);
1905 if (filter.ifindex <= 0) {
1906 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1907 return -1;
1908 }
1909 }
1910
1911 if (action == IPADD_FLUSH)
1912 return ipaddr_flush();
1913
1914 if (action == IPADD_SAVE) {
1915 if (ipadd_save_prep())
1916 exit(1);
1917
1918 if (rtnl_addrdump_req(&rth, preferred_family) < 0) {
1919 perror("Cannot send dump request");
1920 exit(1);
1921 }
1922
1923 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1924 fprintf(stderr, "Save terminated\n");
1925 exit(1);
1926 }
1927
1928 exit(0);
1929 }
1930
1931 /*
1932 * Initialize a json_writer and open an array object
1933 * if -json was specified.
1934 */
1935 new_json_obj(json);
1936
1937 /*
1938 * If only filter_dev present and none of the other
1939 * link filters are present, use RTM_GETLINK to get
1940 * the link device
1941 */
1942 if (filter_dev && filter.group == -1 && do_link == 1) {
1943 if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) {
1944 perror("Cannot send link get request");
1945 delete_json_obj();
1946 exit(1);
1947 }
1948 delete_json_obj();
1949 goto out;
1950 }
1951
1952 if (filter.family != AF_PACKET) {
1953 ainfo = &_ainfo;
1954
1955 if (filter.oneline)
1956 no_link = 1;
1957 }
1958
1959 if (ip_linkaddr_list(filter.family, iplink_filter_req,
1960 &linfo, ainfo) != 0)
1961 goto out;
1962
1963 if (filter.family != AF_PACKET)
1964 ipaddr_filter(&linfo, ainfo);
1965
1966 for (l = linfo.head; l; l = l->next) {
1967 struct nlmsghdr *n = &l->h;
1968 struct ifinfomsg *ifi = NLMSG_DATA(n);
1969 int res = 0;
1970
1971 open_json_object(NULL);
1972 if (brief || !no_link)
1973 res = print_linkinfo(NULL, n, stdout);
1974 if (res >= 0 && filter.family != AF_PACKET)
1975 print_selected_addrinfo(ifi, ainfo->head, stdout);
1976 if (res > 0 && !do_link && show_stats)
1977 print_link_stats(stdout, n);
1978 close_json_object();
1979 }
1980 fflush(stdout);
1981
1982 out:
1983 if (ainfo)
1984 free_nlmsg_chain(ainfo);
1985 free_nlmsg_chain(&linfo);
1986 delete_json_obj();
1987 return 0;
1988 }
1989
1990 static void
1991 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
1992 {
1993 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
1994 struct rtattr *i, *vf[IFLA_VF_MAX+1];
1995 struct ifla_vf_rate *vf_rate;
1996 int rem;
1997
1998 rem = RTA_PAYLOAD(vflist);
1999
2000 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2001 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2002
2003 if (!vf[IFLA_VF_RATE]) {
2004 fprintf(stderr, "VF min/max rate API not supported\n");
2005 exit(1);
2006 }
2007
2008 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2009 if (vf_rate->vf == vfnum) {
2010 *min = vf_rate->min_tx_rate;
2011 *max = vf_rate->max_tx_rate;
2012 return;
2013 }
2014 }
2015 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2016 exit(1);
2017 }
2018
2019 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2020 {
2021 struct nlmsg_chain linfo = { NULL, NULL};
2022 struct rtattr *tb[IFLA_MAX+1];
2023 struct ifinfomsg *ifi;
2024 struct nlmsg_list *l;
2025 struct nlmsghdr *n;
2026 int idx, len;
2027
2028 idx = ll_name_to_index(dev);
2029 if (idx == 0) {
2030 fprintf(stderr, "Device %s does not exist\n", dev);
2031 exit(1);
2032 }
2033
2034 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2035 perror("Cannot send dump request");
2036 exit(1);
2037 }
2038 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2039 fprintf(stderr, "Dump terminated\n");
2040 exit(1);
2041 }
2042 for (l = linfo.head; l; l = l->next) {
2043 n = &l->h;
2044 ifi = NLMSG_DATA(n);
2045
2046 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2047 if (len < 0 || (idx && idx != ifi->ifi_index))
2048 continue;
2049
2050 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2051
2052 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2053 ipaddr_loop_each_vf(tb, vfnum, min, max);
2054 return;
2055 }
2056 }
2057 }
2058
2059 int ipaddr_list_link(int argc, char **argv)
2060 {
2061 preferred_family = AF_PACKET;
2062 do_link = 1;
2063 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2064 }
2065
2066 void ipaddr_reset_filter(int oneline, int ifindex)
2067 {
2068 memset(&filter, 0, sizeof(filter));
2069 filter.oneline = oneline;
2070 filter.ifindex = ifindex;
2071 }
2072
2073 static int default_scope(inet_prefix *lcl)
2074 {
2075 if (lcl->family == AF_INET) {
2076 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2077 return RT_SCOPE_HOST;
2078 }
2079 return 0;
2080 }
2081
2082 static bool ipaddr_is_multicast(inet_prefix *a)
2083 {
2084 if (a->family == AF_INET)
2085 return IN_MULTICAST(ntohl(a->data[0]));
2086 else if (a->family == AF_INET6)
2087 return IN6_IS_ADDR_MULTICAST(a->data);
2088 else
2089 return false;
2090 }
2091
2092 static bool is_valid_label(const char *dev, const char *label)
2093 {
2094 size_t len = strlen(dev);
2095
2096 if (strncmp(label, dev, len) != 0)
2097 return false;
2098
2099 return label[len] == '\0' || label[len] == ':';
2100 }
2101
2102 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2103 {
2104 struct {
2105 struct nlmsghdr n;
2106 struct ifaddrmsg ifa;
2107 char buf[256];
2108 } req = {
2109 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2110 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2111 .n.nlmsg_type = cmd,
2112 .ifa.ifa_family = preferred_family,
2113 };
2114 char *d = NULL;
2115 char *l = NULL;
2116 char *lcl_arg = NULL;
2117 char *valid_lftp = NULL;
2118 char *preferred_lftp = NULL;
2119 inet_prefix lcl = {};
2120 inet_prefix peer;
2121 int local_len = 0;
2122 int peer_len = 0;
2123 int brd_len = 0;
2124 int any_len = 0;
2125 int scoped = 0;
2126 __u32 preferred_lft = INFINITY_LIFE_TIME;
2127 __u32 valid_lft = INFINITY_LIFE_TIME;
2128 unsigned int ifa_flags = 0;
2129
2130 while (argc > 0) {
2131 if (strcmp(*argv, "peer") == 0 ||
2132 strcmp(*argv, "remote") == 0) {
2133 NEXT_ARG();
2134
2135 if (peer_len)
2136 duparg("peer", *argv);
2137 get_prefix(&peer, *argv, req.ifa.ifa_family);
2138 peer_len = peer.bytelen;
2139 if (req.ifa.ifa_family == AF_UNSPEC)
2140 req.ifa.ifa_family = peer.family;
2141 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2142 req.ifa.ifa_prefixlen = peer.bitlen;
2143 } else if (matches(*argv, "broadcast") == 0 ||
2144 strcmp(*argv, "brd") == 0) {
2145 inet_prefix addr;
2146
2147 NEXT_ARG();
2148 if (brd_len)
2149 duparg("broadcast", *argv);
2150 if (strcmp(*argv, "+") == 0)
2151 brd_len = -1;
2152 else if (strcmp(*argv, "-") == 0)
2153 brd_len = -2;
2154 else {
2155 get_addr(&addr, *argv, req.ifa.ifa_family);
2156 if (req.ifa.ifa_family == AF_UNSPEC)
2157 req.ifa.ifa_family = addr.family;
2158 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2159 brd_len = addr.bytelen;
2160 }
2161 } else if (strcmp(*argv, "anycast") == 0) {
2162 inet_prefix addr;
2163
2164 NEXT_ARG();
2165 if (any_len)
2166 duparg("anycast", *argv);
2167 get_addr(&addr, *argv, req.ifa.ifa_family);
2168 if (req.ifa.ifa_family == AF_UNSPEC)
2169 req.ifa.ifa_family = addr.family;
2170 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2171 any_len = addr.bytelen;
2172 } else if (strcmp(*argv, "scope") == 0) {
2173 unsigned int scope = 0;
2174
2175 NEXT_ARG();
2176 if (rtnl_rtscope_a2n(&scope, *argv))
2177 invarg("invalid scope value.", *argv);
2178 req.ifa.ifa_scope = scope;
2179 scoped = 1;
2180 } else if (strcmp(*argv, "dev") == 0) {
2181 NEXT_ARG();
2182 d = *argv;
2183 } else if (strcmp(*argv, "label") == 0) {
2184 NEXT_ARG();
2185 l = *argv;
2186 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2187 } else if (matches(*argv, "metric") == 0 ||
2188 matches(*argv, "priority") == 0 ||
2189 matches(*argv, "preference") == 0) {
2190 __u32 metric;
2191
2192 NEXT_ARG();
2193 if (get_u32(&metric, *argv, 0))
2194 invarg("\"metric\" value is invalid\n", *argv);
2195 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2196 } else if (matches(*argv, "valid_lft") == 0) {
2197 if (valid_lftp)
2198 duparg("valid_lft", *argv);
2199 NEXT_ARG();
2200 valid_lftp = *argv;
2201 if (set_lifetime(&valid_lft, *argv))
2202 invarg("valid_lft value", *argv);
2203 } else if (matches(*argv, "preferred_lft") == 0) {
2204 if (preferred_lftp)
2205 duparg("preferred_lft", *argv);
2206 NEXT_ARG();
2207 preferred_lftp = *argv;
2208 if (set_lifetime(&preferred_lft, *argv))
2209 invarg("preferred_lft value", *argv);
2210 } else if (strcmp(*argv, "home") == 0) {
2211 ifa_flags |= IFA_F_HOMEADDRESS;
2212 } else if (strcmp(*argv, "nodad") == 0) {
2213 ifa_flags |= IFA_F_NODAD;
2214 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2215 ifa_flags |= IFA_F_MANAGETEMPADDR;
2216 } else if (strcmp(*argv, "noprefixroute") == 0) {
2217 ifa_flags |= IFA_F_NOPREFIXROUTE;
2218 } else if (strcmp(*argv, "autojoin") == 0) {
2219 ifa_flags |= IFA_F_MCAUTOJOIN;
2220 } else {
2221 if (strcmp(*argv, "local") == 0)
2222 NEXT_ARG();
2223 if (matches(*argv, "help") == 0)
2224 usage();
2225 if (local_len)
2226 duparg2("local", *argv);
2227 lcl_arg = *argv;
2228 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2229 if (req.ifa.ifa_family == AF_UNSPEC)
2230 req.ifa.ifa_family = lcl.family;
2231 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2232 local_len = lcl.bytelen;
2233 }
2234 argc--; argv++;
2235 }
2236 if (ifa_flags <= 0xff)
2237 req.ifa.ifa_flags = ifa_flags;
2238 else
2239 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2240
2241 if (d == NULL) {
2242 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2243 return -1;
2244 }
2245 if (l && !is_valid_label(d, l)) {
2246 fprintf(stderr,
2247 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2248 l, d);
2249 return -1;
2250 }
2251
2252 if (peer_len == 0 && local_len) {
2253 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2254 fprintf(stderr,
2255 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2256 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2257 " This special behaviour is likely to disappear in further releases,\n"
2258 " fix your scripts!\n", lcl_arg, local_len*8);
2259 } else {
2260 peer = lcl;
2261 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2262 }
2263 }
2264 if (req.ifa.ifa_prefixlen == 0)
2265 req.ifa.ifa_prefixlen = lcl.bitlen;
2266
2267 if (brd_len < 0 && cmd != RTM_DELADDR) {
2268 inet_prefix brd;
2269 int i;
2270
2271 if (req.ifa.ifa_family != AF_INET) {
2272 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2273 return -1;
2274 }
2275 brd = peer;
2276 if (brd.bitlen <= 30) {
2277 for (i = 31; i >= brd.bitlen; i--) {
2278 if (brd_len == -1)
2279 brd.data[0] |= htonl(1<<(31-i));
2280 else
2281 brd.data[0] &= ~htonl(1<<(31-i));
2282 }
2283 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2284 brd_len = brd.bytelen;
2285 }
2286 }
2287 if (!scoped && cmd != RTM_DELADDR)
2288 req.ifa.ifa_scope = default_scope(&lcl);
2289
2290 req.ifa.ifa_index = ll_name_to_index(d);
2291 if (!req.ifa.ifa_index)
2292 return nodev(d);
2293
2294 if (valid_lftp || preferred_lftp) {
2295 struct ifa_cacheinfo cinfo = {};
2296
2297 if (!valid_lft) {
2298 fprintf(stderr, "valid_lft is zero\n");
2299 return -1;
2300 }
2301 if (valid_lft < preferred_lft) {
2302 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2303 return -1;
2304 }
2305
2306 cinfo.ifa_prefered = preferred_lft;
2307 cinfo.ifa_valid = valid_lft;
2308 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2309 sizeof(cinfo));
2310 }
2311
2312 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2313 fprintf(stderr, "autojoin needs multicast address\n");
2314 return -1;
2315 }
2316
2317 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2318 return -2;
2319
2320 return 0;
2321 }
2322
2323 int do_ipaddr(int argc, char **argv)
2324 {
2325 if (argc < 1)
2326 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2327 if (matches(*argv, "add") == 0)
2328 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2329 if (matches(*argv, "change") == 0 ||
2330 strcmp(*argv, "chg") == 0)
2331 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2332 if (matches(*argv, "replace") == 0)
2333 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2334 if (matches(*argv, "delete") == 0)
2335 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2336 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2337 || matches(*argv, "lst") == 0)
2338 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2339 if (matches(*argv, "flush") == 0)
2340 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2341 if (matches(*argv, "save") == 0)
2342 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2343 if (matches(*argv, "showdump") == 0)
2344 return ipaddr_showdump();
2345 if (matches(*argv, "restore") == 0)
2346 return ipaddr_restore();
2347 if (matches(*argv, "help") == 0)
2348 usage();
2349 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2350 exit(-1);
2351 }
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