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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 ]\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_string(PRINT_FP, NULL, "%s", _SL_);
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_string(PRINT_FP, NULL, "%s", _SL_);
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_int(PRINT_ANY,
420 "tx_rate",
421 ", tx rate %d (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_int(PRINT_JSON, "max_tx", NULL, max_tx);
432 print_int(PRINT_ANY, "min_tx", NULL, min_tx);
433 close_json_object();
434 } else {
435 if (max_tx)
436 fprintf(fp, ", max_tx_rate %dMbps", max_tx);
437 if (min_tx)
438 fprintf(fp, ", min_tx_rate %dMbps", 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_uint(PRINT_JSON, "bytes", NULL,
558 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
559 print_uint(PRINT_JSON, "packets", NULL,
560 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
561 print_uint(PRINT_JSON, "multicast", NULL,
562 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
563 print_uint(PRINT_JSON, "broadcast", NULL,
564 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
565 close_json_object();
566
567 /* TX stats */
568 open_json_object("tx");
569 print_uint(PRINT_JSON, "tx_bytes", NULL,
570 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
571 print_uint(PRINT_JSON, "tx_packets", NULL,
572 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
573 close_json_object();
574 close_json_object();
575 } else {
576 /* RX stats */
577 fprintf(fp, "%s", _SL_);
578 fprintf(fp, " RX: bytes packets mcast bcast %s", _SL_);
579 fprintf(fp, " ");
580
581 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
582 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
583 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
584 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
585
586 /* TX stats */
587 fprintf(fp, "%s", _SL_);
588 fprintf(fp, " TX: bytes packets %s", _SL_);
589 fprintf(fp, " ");
590
591 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
592 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
593 }
594 }
595
596 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
597 {
598 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
599 struct rtnl_link_stats64 _s, *s = &_s;
600 int ret;
601
602 ret = get_rtnl_link_stats_rta(s, tb);
603 if (ret < 0)
604 return;
605
606 if (is_json_context()) {
607 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
608
609 /* RX stats */
610 open_json_object("rx");
611 print_uint(PRINT_JSON, "bytes", NULL, s->rx_bytes);
612 print_uint(PRINT_JSON, "packets", NULL, s->rx_packets);
613 print_uint(PRINT_JSON, "errors", NULL, s->rx_errors);
614 print_uint(PRINT_JSON, "dropped", NULL, s->rx_dropped);
615 print_uint(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
616 print_uint(PRINT_JSON, "multicast", NULL, s->multicast);
617 if (s->rx_compressed)
618 print_uint(PRINT_JSON,
619 "compressed", NULL, s->rx_compressed);
620
621 /* RX error stats */
622 if (show_stats > 1) {
623 print_uint(PRINT_JSON,
624 "length_errors",
625 NULL, s->rx_length_errors);
626 print_uint(PRINT_JSON,
627 "crc_errors",
628 NULL, s->rx_crc_errors);
629 print_uint(PRINT_JSON,
630 "frame_errors",
631 NULL, s->rx_frame_errors);
632 print_uint(PRINT_JSON,
633 "fifo_errors",
634 NULL, s->rx_fifo_errors);
635 print_uint(PRINT_JSON,
636 "missed_errors",
637 NULL, s->rx_missed_errors);
638 if (s->rx_nohandler)
639 print_uint(PRINT_JSON,
640 "nohandler", NULL, s->rx_nohandler);
641 }
642 close_json_object();
643
644 /* TX stats */
645 open_json_object("tx");
646 print_uint(PRINT_JSON, "bytes", NULL, s->tx_bytes);
647 print_uint(PRINT_JSON, "packets", NULL, s->tx_packets);
648 print_uint(PRINT_JSON, "errors", NULL, s->tx_errors);
649 print_uint(PRINT_JSON, "dropped", NULL, s->tx_dropped);
650 print_uint(PRINT_JSON,
651 "carrier_errors",
652 NULL, s->tx_carrier_errors);
653 print_uint(PRINT_JSON, "collisions", NULL, s->collisions);
654 if (s->tx_compressed)
655 print_uint(PRINT_JSON,
656 "compressed", NULL, s->tx_compressed);
657
658 /* TX error stats */
659 if (show_stats > 1) {
660 print_uint(PRINT_JSON,
661 "aborted_errors",
662 NULL, s->tx_aborted_errors);
663 print_uint(PRINT_JSON,
664 "fifo_errors",
665 NULL, s->tx_fifo_errors);
666 print_uint(PRINT_JSON,
667 "window_errors",
668 NULL, s->tx_window_errors);
669 print_uint(PRINT_JSON,
670 "heartbeat_errors",
671 NULL, s->tx_heartbeat_errors);
672 if (carrier_changes)
673 print_uint(PRINT_JSON, "carrier_changes", NULL,
674 rta_getattr_u32(carrier_changes));
675 }
676
677 close_json_object();
678 close_json_object();
679 } else {
680 /* RX stats */
681 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
682 s->rx_compressed ? "compressed" : "", _SL_);
683
684 fprintf(fp, " ");
685 print_num(fp, 10, s->rx_bytes);
686 print_num(fp, 8, s->rx_packets);
687 print_num(fp, 7, s->rx_errors);
688 print_num(fp, 7, s->rx_dropped);
689 print_num(fp, 7, s->rx_over_errors);
690 print_num(fp, 7, s->multicast);
691 if (s->rx_compressed)
692 print_num(fp, 7, s->rx_compressed);
693
694 /* RX error stats */
695 if (show_stats > 1) {
696 fprintf(fp, "%s", _SL_);
697 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
698 s->rx_nohandler ? " nohandler" : "", _SL_);
699 fprintf(fp, " ");
700 print_num(fp, 8, s->rx_length_errors);
701 print_num(fp, 7, s->rx_crc_errors);
702 print_num(fp, 7, s->rx_frame_errors);
703 print_num(fp, 7, s->rx_fifo_errors);
704 print_num(fp, 7, s->rx_missed_errors);
705 if (s->rx_nohandler)
706 print_num(fp, 7, s->rx_nohandler);
707 }
708 fprintf(fp, "%s", _SL_);
709
710 /* TX stats */
711 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
712 s->tx_compressed ? "compressed" : "", _SL_);
713
714 fprintf(fp, " ");
715 print_num(fp, 10, s->tx_bytes);
716 print_num(fp, 8, s->tx_packets);
717 print_num(fp, 7, s->tx_errors);
718 print_num(fp, 7, s->tx_dropped);
719 print_num(fp, 7, s->tx_carrier_errors);
720 print_num(fp, 7, s->collisions);
721 if (s->tx_compressed)
722 print_num(fp, 7, s->tx_compressed);
723
724 /* TX error stats */
725 if (show_stats > 1) {
726 fprintf(fp, "%s", _SL_);
727 fprintf(fp, " TX errors: aborted fifo window heartbeat");
728 if (carrier_changes)
729 fprintf(fp, " transns");
730 fprintf(fp, "%s", _SL_);
731
732 fprintf(fp, " ");
733 print_num(fp, 8, s->tx_aborted_errors);
734 print_num(fp, 7, s->tx_fifo_errors);
735 print_num(fp, 7, s->tx_window_errors);
736 print_num(fp, 7, s->tx_heartbeat_errors);
737 if (carrier_changes)
738 print_num(fp, 7,
739 rta_getattr_u32(carrier_changes));
740 }
741 }
742 }
743
744 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
745 {
746 struct ifinfomsg *ifi = NLMSG_DATA(n);
747 struct rtattr *tb[IFLA_MAX+1];
748
749 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
750 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
751 __print_link_stats(fp, tb);
752 fprintf(fp, "%s", _SL_);
753 }
754
755 static int print_linkinfo_brief(FILE *fp, const char *name,
756 const struct ifinfomsg *ifi,
757 struct rtattr *tb[])
758 {
759 unsigned int m_flag = 0;
760
761 m_flag = print_name_and_link("%-16s ", COLOR_NONE, name, tb);
762
763 if (tb[IFLA_OPERSTATE])
764 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
765
766 if (filter.family == AF_PACKET) {
767 SPRINT_BUF(b1);
768
769 if (tb[IFLA_ADDRESS]) {
770 print_color_string(PRINT_ANY, COLOR_MAC,
771 "address", "%s ",
772 ll_addr_n2a(
773 RTA_DATA(tb[IFLA_ADDRESS]),
774 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
775 ifi->ifi_type,
776 b1, sizeof(b1)));
777 }
778 }
779
780 if (filter.family == AF_PACKET) {
781 print_link_flags(fp, ifi->ifi_flags, m_flag);
782 print_string(PRINT_FP, NULL, "%s", "\n");
783 }
784
785 fflush(fp);
786 return 0;
787 }
788
789 static const char *link_events[] = {
790 [IFLA_EVENT_NONE] = "NONE",
791 [IFLA_EVENT_REBOOT] = "REBOOT",
792 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
793 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
794 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
795 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
796 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
797 };
798
799 static void print_link_event(FILE *f, __u32 event)
800 {
801 if (event >= ARRAY_SIZE(link_events))
802 print_int(PRINT_ANY, "event", "event %d ", event);
803 else {
804 if (event)
805 print_string(PRINT_ANY,
806 "event", "event %s ",
807 link_events[event]);
808 }
809 }
810
811 int print_linkinfo(const struct sockaddr_nl *who,
812 struct nlmsghdr *n, void *arg)
813 {
814 FILE *fp = (FILE *)arg;
815 struct ifinfomsg *ifi = NLMSG_DATA(n);
816 struct rtattr *tb[IFLA_MAX+1];
817 int len = n->nlmsg_len;
818 const char *name;
819 unsigned int m_flag = 0;
820 SPRINT_BUF(b1);
821
822 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
823 return 0;
824
825 len -= NLMSG_LENGTH(sizeof(*ifi));
826 if (len < 0)
827 return -1;
828
829 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
830 return -1;
831 if (filter.up && !(ifi->ifi_flags&IFF_UP))
832 return -1;
833
834 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
835
836 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
837 if (!name)
838 return -1;
839
840 if (filter.label &&
841 (!filter.family || filter.family == AF_PACKET) &&
842 fnmatch(filter.label, name, 0))
843 return -1;
844
845 if (tb[IFLA_GROUP]) {
846 int group = rta_getattr_u32(tb[IFLA_GROUP]);
847
848 if (filter.group != -1 && group != filter.group)
849 return -1;
850 }
851
852 if (tb[IFLA_MASTER]) {
853 int master = rta_getattr_u32(tb[IFLA_MASTER]);
854
855 if (filter.master > 0 && master != filter.master)
856 return -1;
857 } else if (filter.master > 0)
858 return -1;
859
860 if (filter.kind && match_link_kind(tb, filter.kind, 0))
861 return -1;
862
863 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
864 return -1;
865
866 if (n->nlmsg_type == RTM_DELLINK)
867 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
868
869 if (brief)
870 return print_linkinfo_brief(fp, name, ifi, tb);
871
872 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
873
874 m_flag = print_name_and_link("%s: ", COLOR_IFNAME, name, tb);
875 print_link_flags(fp, ifi->ifi_flags, m_flag);
876
877 if (tb[IFLA_MTU])
878 print_int(PRINT_ANY,
879 "mtu", "mtu %u ",
880 rta_getattr_u32(tb[IFLA_MTU]));
881 if (tb[IFLA_XDP])
882 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
883 if (tb[IFLA_QDISC])
884 print_string(PRINT_ANY,
885 "qdisc",
886 "qdisc %s ",
887 rta_getattr_str(tb[IFLA_QDISC]));
888 if (tb[IFLA_MASTER]) {
889 int master = rta_getattr_u32(tb[IFLA_MASTER]);
890
891 print_color_string(PRINT_ANY,
892 COLOR_IFNAME,
893 "master",
894 "master %s ",
895 ll_index_to_name(master));
896 }
897
898 if (tb[IFLA_OPERSTATE])
899 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
900
901 if (do_link && tb[IFLA_LINKMODE])
902 print_linkmode(fp, tb[IFLA_LINKMODE]);
903
904 if (tb[IFLA_GROUP]) {
905 int group = rta_getattr_u32(tb[IFLA_GROUP]);
906
907 print_string(PRINT_ANY,
908 "group",
909 "group %s ",
910 rtnl_group_n2a(group, b1, sizeof(b1)));
911 }
912
913 if (filter.showqueue)
914 print_queuelen(fp, tb);
915
916 if (tb[IFLA_EVENT])
917 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
918
919 if (!filter.family || filter.family == AF_PACKET || show_details) {
920 print_string(PRINT_FP, NULL, "%s", _SL_);
921 print_string(PRINT_ANY,
922 "link_type",
923 " link/%s ",
924 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
925 if (tb[IFLA_ADDRESS]) {
926 print_color_string(PRINT_ANY,
927 COLOR_MAC,
928 "address",
929 "%s",
930 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
931 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
932 ifi->ifi_type,
933 b1, sizeof(b1)));
934 }
935 if (tb[IFLA_BROADCAST]) {
936 if (ifi->ifi_flags&IFF_POINTOPOINT) {
937 print_string(PRINT_FP, NULL, " peer ", NULL);
938 print_bool(PRINT_JSON,
939 "link_pointtopoint", NULL, true);
940 } else {
941 print_string(PRINT_FP, NULL, " brd ", NULL);
942 }
943 print_color_string(PRINT_ANY,
944 COLOR_MAC,
945 "broadcast",
946 "%s",
947 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
948 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
949 ifi->ifi_type,
950 b1, sizeof(b1)));
951 }
952 }
953
954 if (tb[IFLA_LINK_NETNSID]) {
955 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
956
957 if (is_json_context()) {
958 print_int(PRINT_JSON, "link_netnsid", NULL, id);
959 } else {
960 if (id >= 0)
961 print_int(PRINT_FP, NULL,
962 " link-netnsid %d", id);
963 else
964 print_string(PRINT_FP, NULL,
965 " link-netnsid %s", "unknown");
966 }
967 }
968
969 if (tb[IFLA_PROTO_DOWN]) {
970 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
971 print_bool(PRINT_ANY,
972 "proto_down", " protodown on ", true);
973 }
974
975 if (show_details) {
976 if (tb[IFLA_PROMISCUITY])
977 print_uint(PRINT_ANY,
978 "promiscuity",
979 " promiscuity %u ",
980 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
981
982 if (tb[IFLA_LINKINFO])
983 print_linktype(fp, tb[IFLA_LINKINFO]);
984
985 if (do_link && tb[IFLA_AF_SPEC])
986 print_af_spec(fp, tb[IFLA_AF_SPEC]);
987
988 if (tb[IFLA_NUM_TX_QUEUES])
989 print_uint(PRINT_ANY,
990 "num_tx_queues",
991 "numtxqueues %u ",
992 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
993
994 if (tb[IFLA_NUM_RX_QUEUES])
995 print_uint(PRINT_ANY,
996 "num_rx_queues",
997 "numrxqueues %u ",
998 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
999
1000 if (tb[IFLA_GSO_MAX_SIZE])
1001 print_uint(PRINT_ANY,
1002 "gso_max_size",
1003 "gso_max_size %u ",
1004 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1005
1006 if (tb[IFLA_GSO_MAX_SEGS])
1007 print_uint(PRINT_ANY,
1008 "gso_max_segs",
1009 "gso_max_segs %u ",
1010 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1011
1012 if (tb[IFLA_PHYS_PORT_NAME])
1013 print_string(PRINT_ANY,
1014 "phys_port_name",
1015 "portname %s ",
1016 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1017
1018 if (tb[IFLA_PHYS_PORT_ID]) {
1019 print_string(PRINT_ANY,
1020 "phys_port_id",
1021 "portid %s ",
1022 hexstring_n2a(
1023 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1024 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1025 b1, sizeof(b1)));
1026 }
1027
1028 if (tb[IFLA_PHYS_SWITCH_ID]) {
1029 print_string(PRINT_ANY,
1030 "phys_switch_id",
1031 "switchid %s ",
1032 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1033 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1034 b1, sizeof(b1)));
1035 }
1036 }
1037
1038 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1039 print_string(PRINT_FP, NULL, "%s ", _SL_);
1040 print_string(PRINT_ANY,
1041 "ifalias",
1042 "alias %s",
1043 rta_getattr_str(tb[IFLA_IFALIAS]));
1044 }
1045
1046 if ((do_link || show_details) && tb[IFLA_XDP])
1047 xdp_dump(fp, tb[IFLA_XDP], true, true);
1048
1049 if (do_link && show_stats) {
1050 print_string(PRINT_FP, NULL, "%s", _SL_);
1051 __print_link_stats(fp, tb);
1052 }
1053
1054 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1055 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1056 int rem = RTA_PAYLOAD(vflist);
1057
1058 open_json_array(PRINT_JSON, "vfinfo_list");
1059 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1060 open_json_object(NULL);
1061 print_vfinfo(fp, i);
1062 close_json_object();
1063 }
1064 close_json_array(PRINT_JSON, NULL);
1065 }
1066
1067 print_string(PRINT_FP, NULL, "%s", "\n");
1068 fflush(fp);
1069 return 1;
1070 }
1071
1072 static int flush_update(void)
1073 {
1074
1075 /*
1076 * Note that the kernel may delete multiple addresses for one
1077 * delete request (e.g. if ipv4 address promotion is disabled).
1078 * Since a flush operation is really a series of delete requests
1079 * its possible that we may request an address delete that has
1080 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1081 * errors returned from a flush request
1082 */
1083 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1084 (errno != EADDRNOTAVAIL)) {
1085 perror("Failed to send flush request");
1086 return -1;
1087 }
1088 filter.flushp = 0;
1089 return 0;
1090 }
1091
1092 static int set_lifetime(unsigned int *lifetime, char *argv)
1093 {
1094 if (strcmp(argv, "forever") == 0)
1095 *lifetime = INFINITY_LIFE_TIME;
1096 else if (get_u32(lifetime, argv, 0))
1097 return -1;
1098
1099 return 0;
1100 }
1101
1102 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1103 struct rtattr *ifa_flags_attr)
1104 {
1105 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1106 ifa->ifa_flags;
1107 }
1108
1109 /* Mapping from argument to address flag mask */
1110 struct {
1111 const char *name;
1112 unsigned long value;
1113 } ifa_flag_names[] = {
1114 { "secondary", IFA_F_SECONDARY },
1115 { "temporary", IFA_F_SECONDARY },
1116 { "nodad", IFA_F_NODAD },
1117 { "optimistic", IFA_F_OPTIMISTIC },
1118 { "dadfailed", IFA_F_DADFAILED },
1119 { "home", IFA_F_HOMEADDRESS },
1120 { "deprecated", IFA_F_DEPRECATED },
1121 { "tentative", IFA_F_TENTATIVE },
1122 { "permanent", IFA_F_PERMANENT },
1123 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1124 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1125 { "autojoin", IFA_F_MCAUTOJOIN },
1126 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1127 };
1128
1129 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1130 unsigned int flags)
1131 {
1132 unsigned int i;
1133
1134 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1135 unsigned long mask = ifa_flag_names[i].value;
1136
1137 if (mask == IFA_F_PERMANENT) {
1138 if (!(flags & mask))
1139 print_bool(PRINT_ANY,
1140 "dynamic", "dynamic ", true);
1141 } else if (flags & mask) {
1142 if (mask == IFA_F_SECONDARY &&
1143 ifa->ifa_family == AF_INET6) {
1144 print_bool(PRINT_ANY,
1145 "temporary", "temporary ", true);
1146 } else {
1147 print_string(PRINT_FP, NULL,
1148 "%s ", ifa_flag_names[i].name);
1149 print_bool(PRINT_JSON,
1150 ifa_flag_names[i].name, NULL, true);
1151 }
1152 }
1153
1154 flags &= ~mask;
1155 }
1156
1157 if (flags) {
1158 if (is_json_context()) {
1159 SPRINT_BUF(b1);
1160
1161 snprintf(b1, sizeof(b1), "%02x", flags);
1162 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1163 } else {
1164 fprintf(fp, "flags %02x ", flags);
1165 }
1166 }
1167
1168 }
1169
1170 static int get_filter(const char *arg)
1171 {
1172 unsigned int i;
1173
1174 /* Special cases */
1175 if (strcmp(arg, "dynamic") == 0) {
1176 filter.flags &= ~IFA_F_PERMANENT;
1177 filter.flagmask |= IFA_F_PERMANENT;
1178 } else if (strcmp(arg, "primary") == 0) {
1179 filter.flags &= ~IFA_F_SECONDARY;
1180 filter.flagmask |= IFA_F_SECONDARY;
1181 } else if (*arg == '-') {
1182 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1183 if (strcmp(arg + 1, ifa_flag_names[i].name))
1184 continue;
1185
1186 filter.flags &= ifa_flag_names[i].value;
1187 filter.flagmask |= ifa_flag_names[i].value;
1188 return 0;
1189 }
1190
1191 return -1;
1192 } else {
1193 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1194 if (strcmp(arg, ifa_flag_names[i].name))
1195 continue;
1196 filter.flags |= ifa_flag_names[i].value;
1197 filter.flagmask |= ifa_flag_names[i].value;
1198 return 0;
1199 }
1200 return -1;
1201 }
1202
1203 return 0;
1204 }
1205
1206 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1207 {
1208 const char *label;
1209
1210 if (!filter.label)
1211 return 0;
1212
1213 if (rta)
1214 label = RTA_DATA(rta);
1215 else
1216 label = ll_index_to_name(ifindex);
1217
1218 return fnmatch(filter.label, label, 0);
1219 }
1220
1221 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
1222 void *arg)
1223 {
1224 FILE *fp = arg;
1225 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1226 int len = n->nlmsg_len;
1227 unsigned int ifa_flags;
1228 struct rtattr *rta_tb[IFA_MAX+1];
1229
1230 SPRINT_BUF(b1);
1231
1232 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1233 return 0;
1234 len -= NLMSG_LENGTH(sizeof(*ifa));
1235 if (len < 0) {
1236 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1237 return -1;
1238 }
1239
1240 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1241 return 0;
1242
1243 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1244 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1245
1246 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1247
1248 if (!rta_tb[IFA_LOCAL])
1249 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1250 if (!rta_tb[IFA_ADDRESS])
1251 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1252
1253 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1254 return 0;
1255 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1256 return 0;
1257 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1258 return 0;
1259
1260 if (filter.family && filter.family != ifa->ifa_family)
1261 return 0;
1262
1263 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1264 return 0;
1265
1266 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1267 return 0;
1268
1269 if (filter.flushb) {
1270 struct nlmsghdr *fn;
1271
1272 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1273 if (flush_update())
1274 return -1;
1275 }
1276 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1277 memcpy(fn, n, n->nlmsg_len);
1278 fn->nlmsg_type = RTM_DELADDR;
1279 fn->nlmsg_flags = NLM_F_REQUEST;
1280 fn->nlmsg_seq = ++rth.seq;
1281 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1282 filter.flushed++;
1283 if (show_stats < 2)
1284 return 0;
1285 }
1286
1287 if (n->nlmsg_type == RTM_DELADDR)
1288 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1289
1290 if (!brief) {
1291 const char *name;
1292
1293 if (filter.oneline || filter.flushb) {
1294 const char *dev = ll_index_to_name(ifa->ifa_index);
1295
1296 if (is_json_context()) {
1297 print_int(PRINT_JSON,
1298 "index", NULL, ifa->ifa_index);
1299 print_string(PRINT_JSON, "dev", NULL, dev);
1300 } else {
1301 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1302 }
1303 }
1304
1305 name = family_name(ifa->ifa_family);
1306 if (*name != '?') {
1307 print_string(PRINT_ANY, "family", " %s ", name);
1308 } else {
1309 print_int(PRINT_ANY, "family_index", " family %d ",
1310 ifa->ifa_family);
1311 }
1312 }
1313
1314 if (rta_tb[IFA_LOCAL]) {
1315 print_color_string(PRINT_ANY,
1316 ifa_family_color(ifa->ifa_family),
1317 "local", "%s",
1318 format_host_rta(ifa->ifa_family,
1319 rta_tb[IFA_LOCAL]));
1320 if (rta_tb[IFA_ADDRESS] &&
1321 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1322 RTA_DATA(rta_tb[IFA_LOCAL]),
1323 ifa->ifa_family == AF_INET ? 4 : 16)) {
1324 print_string(PRINT_FP, NULL, " %s ", "peer");
1325 print_color_string(PRINT_ANY,
1326 ifa_family_color(ifa->ifa_family),
1327 "address",
1328 "%s",
1329 format_host_rta(ifa->ifa_family,
1330 rta_tb[IFA_ADDRESS]));
1331 }
1332 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1333 }
1334
1335 if (brief)
1336 goto brief_exit;
1337
1338 if (rta_tb[IFA_BROADCAST]) {
1339 print_string(PRINT_FP, NULL, "%s ", "brd");
1340 print_color_string(PRINT_ANY,
1341 ifa_family_color(ifa->ifa_family),
1342 "broadcast",
1343 "%s ",
1344 format_host_rta(ifa->ifa_family,
1345 rta_tb[IFA_BROADCAST]));
1346 }
1347
1348 if (rta_tb[IFA_ANYCAST]) {
1349 print_string(PRINT_FP, NULL, "%s ", "any");
1350 print_color_string(PRINT_ANY,
1351 ifa_family_color(ifa->ifa_family),
1352 "anycast",
1353 "%s ",
1354 format_host_rta(ifa->ifa_family,
1355 rta_tb[IFA_ANYCAST]));
1356 }
1357
1358 print_string(PRINT_ANY,
1359 "scope",
1360 "scope %s ",
1361 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1362
1363 print_ifa_flags(fp, ifa, ifa_flags);
1364
1365 if (rta_tb[IFA_LABEL])
1366 print_string(PRINT_ANY,
1367 "label",
1368 "%s",
1369 rta_getattr_str(rta_tb[IFA_LABEL]));
1370
1371 if (rta_tb[IFA_CACHEINFO]) {
1372 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1373
1374 print_string(PRINT_FP, NULL, "%s", _SL_);
1375 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1376
1377 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1378 print_uint(PRINT_JSON,
1379 "valid_life_time",
1380 NULL, INFINITY_LIFE_TIME);
1381 print_string(PRINT_FP, NULL, "%s", "forever");
1382 } else {
1383 print_uint(PRINT_ANY,
1384 "valid_life_time", "%usec", ci->ifa_valid);
1385 }
1386
1387 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1388 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1389 print_uint(PRINT_JSON,
1390 "preferred_life_time",
1391 NULL, INFINITY_LIFE_TIME);
1392 print_string(PRINT_FP, NULL, "%s", "forever");
1393 } else {
1394 if (ifa_flags & IFA_F_DEPRECATED)
1395 print_int(PRINT_ANY,
1396 "preferred_life_time",
1397 "%dsec",
1398 ci->ifa_prefered);
1399 else
1400 print_uint(PRINT_ANY,
1401 "preferred_life_time",
1402 "%usec",
1403 ci->ifa_prefered);
1404 }
1405 }
1406 print_string(PRINT_FP, NULL, "%s", "\n");
1407 brief_exit:
1408 fflush(fp);
1409 return 0;
1410 }
1411
1412 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1413 struct nlmsg_list *ainfo, FILE *fp)
1414 {
1415 open_json_array(PRINT_JSON, "addr_info");
1416 for ( ; ainfo ; ainfo = ainfo->next) {
1417 struct nlmsghdr *n = &ainfo->h;
1418 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1419
1420 if (n->nlmsg_type != RTM_NEWADDR)
1421 continue;
1422
1423 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1424 return -1;
1425
1426 if (ifa->ifa_index != ifi->ifi_index ||
1427 (filter.family && filter.family != ifa->ifa_family))
1428 continue;
1429
1430 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1431 continue;
1432
1433 open_json_object(NULL);
1434 print_addrinfo(NULL, n, fp);
1435 close_json_object();
1436 }
1437 close_json_array(PRINT_JSON, NULL);
1438
1439 if (brief) {
1440 print_string(PRINT_FP, NULL, "%s", "\n");
1441 fflush(fp);
1442 }
1443 return 0;
1444 }
1445
1446
1447 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1448 void *arg)
1449 {
1450 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1451 struct nlmsg_list *h;
1452
1453 h = malloc(n->nlmsg_len+sizeof(void *));
1454 if (h == NULL)
1455 return -1;
1456
1457 memcpy(&h->h, n, n->nlmsg_len);
1458 h->next = NULL;
1459
1460 if (lchain->tail)
1461 lchain->tail->next = h;
1462 else
1463 lchain->head = h;
1464 lchain->tail = h;
1465
1466 ll_remember_index(who, n, NULL);
1467 return 0;
1468 }
1469
1470 static __u32 ipadd_dump_magic = 0x47361222;
1471
1472 static int ipadd_save_prep(void)
1473 {
1474 int ret;
1475
1476 if (isatty(STDOUT_FILENO)) {
1477 fprintf(stderr, "Not sending a binary stream to stdout\n");
1478 return -1;
1479 }
1480
1481 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1482 if (ret != sizeof(ipadd_dump_magic)) {
1483 fprintf(stderr, "Can't write magic to dump file\n");
1484 return -1;
1485 }
1486
1487 return 0;
1488 }
1489
1490 static int ipadd_dump_check_magic(void)
1491 {
1492 int ret;
1493 __u32 magic = 0;
1494
1495 if (isatty(STDIN_FILENO)) {
1496 fprintf(stderr, "Can't restore address dump from a terminal\n");
1497 return -1;
1498 }
1499
1500 ret = fread(&magic, sizeof(magic), 1, stdin);
1501 if (magic != ipadd_dump_magic) {
1502 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1503 return -1;
1504 }
1505
1506 return 0;
1507 }
1508
1509 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1510 void *arg)
1511 {
1512 int ret;
1513
1514 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1515 if ((ret > 0) && (ret != n->nlmsg_len)) {
1516 fprintf(stderr, "Short write while saving nlmsg\n");
1517 ret = -EIO;
1518 }
1519
1520 return ret == n->nlmsg_len ? 0 : ret;
1521 }
1522
1523 static int show_handler(const struct sockaddr_nl *nl,
1524 struct rtnl_ctrl_data *ctrl,
1525 struct nlmsghdr *n, void *arg)
1526 {
1527 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1528
1529 open_json_object(NULL);
1530 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1531 print_addrinfo(NULL, n, stdout);
1532 close_json_object();
1533 return 0;
1534 }
1535
1536 static int ipaddr_showdump(void)
1537 {
1538 int err;
1539
1540 if (ipadd_dump_check_magic())
1541 exit(-1);
1542
1543 new_json_obj(json);
1544 open_json_object(NULL);
1545 open_json_array(PRINT_JSON, "addr_info");
1546
1547 err = rtnl_from_file(stdin, &show_handler, NULL);
1548
1549 close_json_array(PRINT_JSON, NULL);
1550 close_json_object();
1551 delete_json_obj();
1552
1553 exit(err);
1554 }
1555
1556 static int restore_handler(const struct sockaddr_nl *nl,
1557 struct rtnl_ctrl_data *ctrl,
1558 struct nlmsghdr *n, void *arg)
1559 {
1560 int ret;
1561
1562 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1563
1564 ll_init_map(&rth);
1565
1566 ret = rtnl_talk(&rth, n, NULL);
1567 if ((ret < 0) && (errno == EEXIST))
1568 ret = 0;
1569
1570 return ret;
1571 }
1572
1573 static int ipaddr_restore(void)
1574 {
1575 if (ipadd_dump_check_magic())
1576 exit(-1);
1577
1578 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1579 }
1580
1581 void free_nlmsg_chain(struct nlmsg_chain *info)
1582 {
1583 struct nlmsg_list *l, *n;
1584
1585 for (l = info->head; l; l = n) {
1586 n = l->next;
1587 free(l);
1588 }
1589 }
1590
1591 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1592 {
1593 struct nlmsg_list *l, **lp;
1594
1595 lp = &linfo->head;
1596 while ((l = *lp) != NULL) {
1597 int ok = 0;
1598 int missing_net_address = 1;
1599 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1600 struct nlmsg_list *a;
1601
1602 for (a = ainfo->head; a; a = a->next) {
1603 struct nlmsghdr *n = &a->h;
1604 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1605 struct rtattr *tb[IFA_MAX + 1];
1606 unsigned int ifa_flags;
1607
1608 if (ifa->ifa_index != ifi->ifi_index)
1609 continue;
1610 missing_net_address = 0;
1611 if (filter.family && filter.family != ifa->ifa_family)
1612 continue;
1613 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1614 continue;
1615
1616 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1617 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1618
1619 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1620 continue;
1621
1622 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1623 continue;
1624
1625 if (!tb[IFA_LOCAL])
1626 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1627 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1628 continue;
1629
1630 ok = 1;
1631 break;
1632 }
1633 if (missing_net_address &&
1634 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1635 ok = 1;
1636 if (!ok) {
1637 *lp = l->next;
1638 free(l);
1639 } else
1640 lp = &l->next;
1641 }
1642 }
1643
1644 static int ipaddr_flush(void)
1645 {
1646 int round = 0;
1647 char flushb[4096-512];
1648
1649 filter.flushb = flushb;
1650 filter.flushp = 0;
1651 filter.flushe = sizeof(flushb);
1652
1653 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1654 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1655 perror("Cannot send dump request");
1656 exit(1);
1657 }
1658 filter.flushed = 0;
1659 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1660 stdout, NLM_F_DUMP_INTR) < 0) {
1661 fprintf(stderr, "Flush terminated\n");
1662 exit(1);
1663 }
1664 if (filter.flushed == 0) {
1665 flush_done:
1666 if (show_stats) {
1667 if (round == 0)
1668 printf("Nothing to flush.\n");
1669 else
1670 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1671 }
1672 fflush(stdout);
1673 return 0;
1674 }
1675 round++;
1676 if (flush_update() < 0)
1677 return 1;
1678
1679 if (show_stats) {
1680 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1681 fflush(stdout);
1682 }
1683
1684 /* If we are flushing, and specifying primary, then we
1685 * want to flush only a single round. Otherwise, we'll
1686 * start flushing secondaries that were promoted to
1687 * primaries.
1688 */
1689 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1690 goto flush_done;
1691 }
1692 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1693 fflush(stderr);
1694 return 1;
1695 }
1696
1697 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1698 {
1699 int err;
1700
1701 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1702 if (err)
1703 return err;
1704
1705 if (filter.master) {
1706 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1707 if (err)
1708 return err;
1709 }
1710
1711 if (filter.kind) {
1712 struct rtattr *linkinfo;
1713
1714 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1715
1716 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1717 strlen(filter.kind));
1718 if (err)
1719 return err;
1720
1721 addattr_nest_end(nlh, linkinfo);
1722 }
1723
1724 return 0;
1725 }
1726
1727 /* fills in linfo with link data and optionally ainfo with address info
1728 * caller can walk lists as desired and must call free_nlmsg_chain for
1729 * both when done
1730 */
1731 int ip_linkaddr_list(int family, req_filter_fn_t filter_fn,
1732 struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1733 {
1734 if (rtnl_wilddump_req_filter_fn(&rth, preferred_family, RTM_GETLINK,
1735 filter_fn) < 0) {
1736 perror("Cannot send dump request");
1737 return 1;
1738 }
1739
1740 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1741 fprintf(stderr, "Dump terminated\n");
1742 return 1;
1743 }
1744
1745 if (ainfo) {
1746 if (rtnl_wilddump_request(&rth, family, RTM_GETADDR) < 0) {
1747 perror("Cannot send dump request");
1748 return 1;
1749 }
1750
1751 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1752 fprintf(stderr, "Dump terminated\n");
1753 return 1;
1754 }
1755 }
1756
1757 return 0;
1758 }
1759
1760 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1761 {
1762 struct nlmsg_chain linfo = { NULL, NULL};
1763 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = NULL;
1764 struct nlmsg_list *l;
1765 char *filter_dev = NULL;
1766 int no_link = 0;
1767
1768 ipaddr_reset_filter(oneline, 0);
1769 filter.showqueue = 1;
1770 filter.family = preferred_family;
1771 filter.group = -1;
1772
1773 if (action == IPADD_FLUSH) {
1774 if (argc <= 0) {
1775 fprintf(stderr, "Flush requires arguments.\n");
1776
1777 return -1;
1778 }
1779 if (filter.family == AF_PACKET) {
1780 fprintf(stderr, "Cannot flush link addresses.\n");
1781 return -1;
1782 }
1783 }
1784
1785 while (argc > 0) {
1786 if (strcmp(*argv, "to") == 0) {
1787 NEXT_ARG();
1788 if (get_prefix(&filter.pfx, *argv, filter.family))
1789 invarg("invalid \"to\"\n", *argv);
1790 if (filter.family == AF_UNSPEC)
1791 filter.family = filter.pfx.family;
1792 } else if (strcmp(*argv, "scope") == 0) {
1793 unsigned int scope = 0;
1794
1795 NEXT_ARG();
1796 filter.scopemask = -1;
1797 if (rtnl_rtscope_a2n(&scope, *argv)) {
1798 if (strcmp(*argv, "all") != 0)
1799 invarg("invalid \"scope\"\n", *argv);
1800 scope = RT_SCOPE_NOWHERE;
1801 filter.scopemask = 0;
1802 }
1803 filter.scope = scope;
1804 } else if (strcmp(*argv, "up") == 0) {
1805 filter.up = 1;
1806 } else if (get_filter(*argv) == 0) {
1807
1808 } else if (strcmp(*argv, "label") == 0) {
1809 NEXT_ARG();
1810 filter.label = *argv;
1811 } else if (strcmp(*argv, "group") == 0) {
1812 NEXT_ARG();
1813 if (rtnl_group_a2n(&filter.group, *argv))
1814 invarg("Invalid \"group\" value\n", *argv);
1815 } else if (strcmp(*argv, "master") == 0) {
1816 int ifindex;
1817
1818 NEXT_ARG();
1819 ifindex = ll_name_to_index(*argv);
1820 if (!ifindex)
1821 invarg("Device does not exist\n", *argv);
1822 filter.master = ifindex;
1823 } else if (strcmp(*argv, "vrf") == 0) {
1824 int ifindex;
1825
1826 NEXT_ARG();
1827 ifindex = ll_name_to_index(*argv);
1828 if (!ifindex)
1829 invarg("Not a valid VRF name\n", *argv);
1830 if (!name_is_vrf(*argv))
1831 invarg("Not a valid VRF name\n", *argv);
1832 filter.master = ifindex;
1833 } else if (strcmp(*argv, "type") == 0) {
1834 int soff;
1835
1836 NEXT_ARG();
1837 soff = strlen(*argv) - strlen("_slave");
1838 if (!strcmp(*argv + soff, "_slave")) {
1839 (*argv)[soff] = '\0';
1840 filter.slave_kind = *argv;
1841 } else {
1842 filter.kind = *argv;
1843 }
1844 } else {
1845 if (strcmp(*argv, "dev") == 0)
1846 NEXT_ARG();
1847 else if (matches(*argv, "help") == 0)
1848 usage();
1849 if (filter_dev)
1850 duparg2("dev", *argv);
1851 filter_dev = *argv;
1852 }
1853 argv++; argc--;
1854 }
1855
1856 if (filter_dev) {
1857 filter.ifindex = ll_name_to_index(filter_dev);
1858 if (filter.ifindex <= 0) {
1859 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1860 return -1;
1861 }
1862 }
1863
1864 if (action == IPADD_FLUSH)
1865 return ipaddr_flush();
1866
1867 if (action == IPADD_SAVE) {
1868 if (ipadd_save_prep())
1869 exit(1);
1870
1871 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1872 perror("Cannot send dump request");
1873 exit(1);
1874 }
1875
1876 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1877 fprintf(stderr, "Save terminated\n");
1878 exit(1);
1879 }
1880
1881 exit(0);
1882 }
1883
1884 /*
1885 * Initialize a json_writer and open an array object
1886 * if -json was specified.
1887 */
1888 new_json_obj(json);
1889
1890 /*
1891 * If only filter_dev present and none of the other
1892 * link filters are present, use RTM_GETLINK to get
1893 * the link device
1894 */
1895 if (filter_dev && filter.group == -1 && do_link == 1) {
1896 if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) {
1897 perror("Cannot send link get request");
1898 delete_json_obj();
1899 exit(1);
1900 }
1901 delete_json_obj();
1902 exit(0);
1903 }
1904
1905 if (filter.family != AF_PACKET) {
1906 ainfo = &_ainfo;
1907
1908 if (filter.oneline)
1909 no_link = 1;
1910 }
1911
1912 if (ip_linkaddr_list(filter.family, iplink_filter_req,
1913 &linfo, ainfo) != 0)
1914 goto out;
1915
1916 if (filter.family != AF_PACKET)
1917 ipaddr_filter(&linfo, ainfo);
1918
1919 for (l = linfo.head; l; l = l->next) {
1920 struct nlmsghdr *n = &l->h;
1921 struct ifinfomsg *ifi = NLMSG_DATA(n);
1922 int res = 0;
1923
1924 open_json_object(NULL);
1925 if (brief || !no_link)
1926 res = print_linkinfo(NULL, n, stdout);
1927 if (res >= 0 && filter.family != AF_PACKET)
1928 print_selected_addrinfo(ifi, ainfo->head, stdout);
1929 if (res > 0 && !do_link && show_stats)
1930 print_link_stats(stdout, n);
1931 close_json_object();
1932 }
1933 fflush(stdout);
1934
1935 out:
1936 if (ainfo)
1937 free_nlmsg_chain(ainfo);
1938 free_nlmsg_chain(&linfo);
1939 delete_json_obj();
1940 return 0;
1941 }
1942
1943 static void
1944 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
1945 {
1946 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
1947 struct rtattr *i, *vf[IFLA_VF_MAX+1];
1948 struct ifla_vf_rate *vf_rate;
1949 int rem;
1950
1951 rem = RTA_PAYLOAD(vflist);
1952
1953 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1954 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
1955
1956 if (!vf[IFLA_VF_RATE]) {
1957 fprintf(stderr, "VF min/max rate API not supported\n");
1958 exit(1);
1959 }
1960
1961 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
1962 if (vf_rate->vf == vfnum) {
1963 *min = vf_rate->min_tx_rate;
1964 *max = vf_rate->max_tx_rate;
1965 return;
1966 }
1967 }
1968 fprintf(stderr, "Cannot find VF %d\n", vfnum);
1969 exit(1);
1970 }
1971
1972 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, int idx)
1973 {
1974 struct nlmsg_chain linfo = { NULL, NULL};
1975 struct rtattr *tb[IFLA_MAX+1];
1976 struct ifinfomsg *ifi;
1977 struct nlmsg_list *l;
1978 struct nlmsghdr *n;
1979 int len;
1980
1981 if (rtnl_wilddump_request(&rth, AF_UNSPEC, RTM_GETLINK) < 0) {
1982 perror("Cannot send dump request");
1983 exit(1);
1984 }
1985 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1986 fprintf(stderr, "Dump terminated\n");
1987 exit(1);
1988 }
1989 for (l = linfo.head; l; l = l->next) {
1990 n = &l->h;
1991 ifi = NLMSG_DATA(n);
1992
1993 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
1994 if (len < 0 || (idx && idx != ifi->ifi_index))
1995 continue;
1996
1997 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
1998
1999 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2000 ipaddr_loop_each_vf(tb, vfnum, min, max);
2001 return;
2002 }
2003 }
2004 }
2005
2006 int ipaddr_list_link(int argc, char **argv)
2007 {
2008 preferred_family = AF_PACKET;
2009 do_link = 1;
2010 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2011 }
2012
2013 void ipaddr_reset_filter(int oneline, int ifindex)
2014 {
2015 memset(&filter, 0, sizeof(filter));
2016 filter.oneline = oneline;
2017 filter.ifindex = ifindex;
2018 }
2019
2020 static int default_scope(inet_prefix *lcl)
2021 {
2022 if (lcl->family == AF_INET) {
2023 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2024 return RT_SCOPE_HOST;
2025 }
2026 return 0;
2027 }
2028
2029 static bool ipaddr_is_multicast(inet_prefix *a)
2030 {
2031 if (a->family == AF_INET)
2032 return IN_MULTICAST(ntohl(a->data[0]));
2033 else if (a->family == AF_INET6)
2034 return IN6_IS_ADDR_MULTICAST(a->data);
2035 else
2036 return false;
2037 }
2038
2039 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2040 {
2041 struct {
2042 struct nlmsghdr n;
2043 struct ifaddrmsg ifa;
2044 char buf[256];
2045 } req = {
2046 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2047 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2048 .n.nlmsg_type = cmd,
2049 .ifa.ifa_family = preferred_family,
2050 };
2051 char *d = NULL;
2052 char *l = NULL;
2053 char *lcl_arg = NULL;
2054 char *valid_lftp = NULL;
2055 char *preferred_lftp = NULL;
2056 inet_prefix lcl = {};
2057 inet_prefix peer;
2058 int local_len = 0;
2059 int peer_len = 0;
2060 int brd_len = 0;
2061 int any_len = 0;
2062 int scoped = 0;
2063 __u32 preferred_lft = INFINITY_LIFE_TIME;
2064 __u32 valid_lft = INFINITY_LIFE_TIME;
2065 unsigned int ifa_flags = 0;
2066
2067 while (argc > 0) {
2068 if (strcmp(*argv, "peer") == 0 ||
2069 strcmp(*argv, "remote") == 0) {
2070 NEXT_ARG();
2071
2072 if (peer_len)
2073 duparg("peer", *argv);
2074 get_prefix(&peer, *argv, req.ifa.ifa_family);
2075 peer_len = peer.bytelen;
2076 if (req.ifa.ifa_family == AF_UNSPEC)
2077 req.ifa.ifa_family = peer.family;
2078 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2079 req.ifa.ifa_prefixlen = peer.bitlen;
2080 } else if (matches(*argv, "broadcast") == 0 ||
2081 strcmp(*argv, "brd") == 0) {
2082 inet_prefix addr;
2083
2084 NEXT_ARG();
2085 if (brd_len)
2086 duparg("broadcast", *argv);
2087 if (strcmp(*argv, "+") == 0)
2088 brd_len = -1;
2089 else if (strcmp(*argv, "-") == 0)
2090 brd_len = -2;
2091 else {
2092 get_addr(&addr, *argv, req.ifa.ifa_family);
2093 if (req.ifa.ifa_family == AF_UNSPEC)
2094 req.ifa.ifa_family = addr.family;
2095 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2096 brd_len = addr.bytelen;
2097 }
2098 } else if (strcmp(*argv, "anycast") == 0) {
2099 inet_prefix addr;
2100
2101 NEXT_ARG();
2102 if (any_len)
2103 duparg("anycast", *argv);
2104 get_addr(&addr, *argv, req.ifa.ifa_family);
2105 if (req.ifa.ifa_family == AF_UNSPEC)
2106 req.ifa.ifa_family = addr.family;
2107 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2108 any_len = addr.bytelen;
2109 } else if (strcmp(*argv, "scope") == 0) {
2110 unsigned int scope = 0;
2111
2112 NEXT_ARG();
2113 if (rtnl_rtscope_a2n(&scope, *argv))
2114 invarg("invalid scope value.", *argv);
2115 req.ifa.ifa_scope = scope;
2116 scoped = 1;
2117 } else if (strcmp(*argv, "dev") == 0) {
2118 NEXT_ARG();
2119 d = *argv;
2120 } else if (strcmp(*argv, "label") == 0) {
2121 NEXT_ARG();
2122 l = *argv;
2123 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2124 } else if (matches(*argv, "valid_lft") == 0) {
2125 if (valid_lftp)
2126 duparg("valid_lft", *argv);
2127 NEXT_ARG();
2128 valid_lftp = *argv;
2129 if (set_lifetime(&valid_lft, *argv))
2130 invarg("valid_lft value", *argv);
2131 } else if (matches(*argv, "preferred_lft") == 0) {
2132 if (preferred_lftp)
2133 duparg("preferred_lft", *argv);
2134 NEXT_ARG();
2135 preferred_lftp = *argv;
2136 if (set_lifetime(&preferred_lft, *argv))
2137 invarg("preferred_lft value", *argv);
2138 } else if (strcmp(*argv, "home") == 0) {
2139 ifa_flags |= IFA_F_HOMEADDRESS;
2140 } else if (strcmp(*argv, "nodad") == 0) {
2141 ifa_flags |= IFA_F_NODAD;
2142 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2143 ifa_flags |= IFA_F_MANAGETEMPADDR;
2144 } else if (strcmp(*argv, "noprefixroute") == 0) {
2145 ifa_flags |= IFA_F_NOPREFIXROUTE;
2146 } else if (strcmp(*argv, "autojoin") == 0) {
2147 ifa_flags |= IFA_F_MCAUTOJOIN;
2148 } else {
2149 if (strcmp(*argv, "local") == 0)
2150 NEXT_ARG();
2151 if (matches(*argv, "help") == 0)
2152 usage();
2153 if (local_len)
2154 duparg2("local", *argv);
2155 lcl_arg = *argv;
2156 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2157 if (req.ifa.ifa_family == AF_UNSPEC)
2158 req.ifa.ifa_family = lcl.family;
2159 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2160 local_len = lcl.bytelen;
2161 }
2162 argc--; argv++;
2163 }
2164 if (ifa_flags <= 0xff)
2165 req.ifa.ifa_flags = ifa_flags;
2166 else
2167 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2168
2169 if (d == NULL) {
2170 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2171 return -1;
2172 }
2173 if (l && matches(d, l) != 0) {
2174 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
2175 return -1;
2176 }
2177
2178 if (peer_len == 0 && local_len) {
2179 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2180 fprintf(stderr,
2181 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2182 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2183 " This special behaviour is likely to disappear in further releases,\n"
2184 " fix your scripts!\n", lcl_arg, local_len*8);
2185 } else {
2186 peer = lcl;
2187 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2188 }
2189 }
2190 if (req.ifa.ifa_prefixlen == 0)
2191 req.ifa.ifa_prefixlen = lcl.bitlen;
2192
2193 if (brd_len < 0 && cmd != RTM_DELADDR) {
2194 inet_prefix brd;
2195 int i;
2196
2197 if (req.ifa.ifa_family != AF_INET) {
2198 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2199 return -1;
2200 }
2201 brd = peer;
2202 if (brd.bitlen <= 30) {
2203 for (i = 31; i >= brd.bitlen; i--) {
2204 if (brd_len == -1)
2205 brd.data[0] |= htonl(1<<(31-i));
2206 else
2207 brd.data[0] &= ~htonl(1<<(31-i));
2208 }
2209 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2210 brd_len = brd.bytelen;
2211 }
2212 }
2213 if (!scoped && cmd != RTM_DELADDR)
2214 req.ifa.ifa_scope = default_scope(&lcl);
2215
2216 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
2217 fprintf(stderr, "Cannot find device \"%s\"\n", d);
2218 return -1;
2219 }
2220
2221 if (valid_lftp || preferred_lftp) {
2222 struct ifa_cacheinfo cinfo = {};
2223
2224 if (!valid_lft) {
2225 fprintf(stderr, "valid_lft is zero\n");
2226 return -1;
2227 }
2228 if (valid_lft < preferred_lft) {
2229 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2230 return -1;
2231 }
2232
2233 cinfo.ifa_prefered = preferred_lft;
2234 cinfo.ifa_valid = valid_lft;
2235 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2236 sizeof(cinfo));
2237 }
2238
2239 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2240 fprintf(stderr, "autojoin needs multicast address\n");
2241 return -1;
2242 }
2243
2244 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2245 return -2;
2246
2247 return 0;
2248 }
2249
2250 int do_ipaddr(int argc, char **argv)
2251 {
2252 if (argc < 1)
2253 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2254 if (matches(*argv, "add") == 0)
2255 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2256 if (matches(*argv, "change") == 0 ||
2257 strcmp(*argv, "chg") == 0)
2258 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2259 if (matches(*argv, "replace") == 0)
2260 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2261 if (matches(*argv, "delete") == 0)
2262 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2263 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2264 || matches(*argv, "lst") == 0)
2265 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2266 if (matches(*argv, "flush") == 0)
2267 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2268 if (matches(*argv, "save") == 0)
2269 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2270 if (matches(*argv, "showdump") == 0)
2271 return ipaddr_showdump();
2272 if (matches(*argv, "restore") == 0)
2273 return ipaddr_restore();
2274 if (matches(*argv, "help") == 0)
2275 usage();
2276 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2277 exit(-1);
2278 }
Upstream mirror of iproute2