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ipaddress: Improve print_linkinfo()
[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 int print_linkinfo_brief(const struct sockaddr_nl *who,
756 struct nlmsghdr *n, void *arg)
757 {
758 FILE *fp = (FILE *)arg;
759 struct ifinfomsg *ifi = NLMSG_DATA(n);
760 struct rtattr *tb[IFLA_MAX+1];
761 int len = n->nlmsg_len;
762 const char *name;
763 char buf[32] = { 0, };
764 unsigned int m_flag = 0;
765
766 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
767 return -1;
768
769 len -= NLMSG_LENGTH(sizeof(*ifi));
770 if (len < 0)
771 return -1;
772
773 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
774 return -1;
775 if (filter.up && !(ifi->ifi_flags&IFF_UP))
776 return -1;
777
778 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
779 if (tb[IFLA_IFNAME] == NULL) {
780 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
781 name = ll_idx_n2a(ifi->ifi_index);
782 } else {
783 name = rta_getattr_str(tb[IFLA_IFNAME]);
784 }
785
786 if (filter.label &&
787 (!filter.family || filter.family == AF_PACKET) &&
788 fnmatch(filter.label, name, 0))
789 return -1;
790
791 if (tb[IFLA_GROUP]) {
792 int group = rta_getattr_u32(tb[IFLA_GROUP]);
793
794 if (filter.group != -1 && group != filter.group)
795 return -1;
796 }
797
798 if (tb[IFLA_MASTER]) {
799 int master = rta_getattr_u32(tb[IFLA_MASTER]);
800
801 if (filter.master > 0 && master != filter.master)
802 return -1;
803 } else if (filter.master > 0)
804 return -1;
805
806 if (filter.kind && match_link_kind(tb, filter.kind, 0))
807 return -1;
808
809 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
810 return -1;
811
812 if (n->nlmsg_type == RTM_DELLINK)
813 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
814
815 if (tb[IFLA_LINK]) {
816 int iflink = rta_getattr_u32(tb[IFLA_LINK]);
817
818 if (iflink == 0) {
819 snprintf(buf, sizeof(buf), "%s@NONE", name);
820 print_null(PRINT_JSON, "link", NULL, NULL);
821 } else {
822 const char *link = ll_index_to_name(iflink);
823
824 print_string(PRINT_JSON, "link", NULL, link);
825 snprintf(buf, sizeof(buf), "%s@%s", name, link);
826 m_flag = ll_index_to_flags(iflink);
827 m_flag = !(m_flag & IFF_UP);
828 }
829 } else
830 snprintf(buf, sizeof(buf), "%s", name);
831
832 print_string(PRINT_FP, NULL, "%-16s ", buf);
833 print_string(PRINT_JSON, "ifname", NULL, name);
834
835 if (tb[IFLA_OPERSTATE])
836 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
837
838 if (filter.family == AF_PACKET) {
839 SPRINT_BUF(b1);
840
841 if (tb[IFLA_ADDRESS]) {
842 print_color_string(PRINT_ANY, COLOR_MAC,
843 "address", "%s ",
844 ll_addr_n2a(
845 RTA_DATA(tb[IFLA_ADDRESS]),
846 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
847 ifi->ifi_type,
848 b1, sizeof(b1)));
849 }
850 }
851
852 if (filter.family == AF_PACKET) {
853 print_link_flags(fp, ifi->ifi_flags, m_flag);
854 print_string(PRINT_FP, NULL, "%s", "\n");
855 }
856
857 fflush(fp);
858 return 0;
859 }
860
861 static const char *link_events[] = {
862 [IFLA_EVENT_NONE] = "NONE",
863 [IFLA_EVENT_REBOOT] = "REBOOT",
864 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
865 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
866 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
867 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
868 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
869 };
870
871 static void print_link_event(FILE *f, __u32 event)
872 {
873 if (event >= ARRAY_SIZE(link_events))
874 print_int(PRINT_ANY, "event", "event %d ", event);
875 else {
876 if (event)
877 print_string(PRINT_ANY,
878 "event", "event %s ",
879 link_events[event]);
880 }
881 }
882
883 int print_linkinfo(const struct sockaddr_nl *who,
884 struct nlmsghdr *n, void *arg)
885 {
886 FILE *fp = (FILE *)arg;
887 struct ifinfomsg *ifi = NLMSG_DATA(n);
888 struct rtattr *tb[IFLA_MAX+1];
889 int len = n->nlmsg_len;
890 const char *name;
891 unsigned int m_flag = 0;
892
893 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
894 return 0;
895
896 len -= NLMSG_LENGTH(sizeof(*ifi));
897 if (len < 0)
898 return -1;
899
900 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
901 return -1;
902 if (filter.up && !(ifi->ifi_flags&IFF_UP))
903 return -1;
904
905 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
906 if (tb[IFLA_IFNAME] == NULL) {
907 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
908 name = ll_idx_n2a(ifi->ifi_index);
909 } else {
910 name = rta_getattr_str(tb[IFLA_IFNAME]);
911 }
912
913 if (filter.label &&
914 (!filter.family || filter.family == AF_PACKET) &&
915 fnmatch(filter.label, name, 0))
916 return -1;
917
918 if (tb[IFLA_GROUP]) {
919 int group = rta_getattr_u32(tb[IFLA_GROUP]);
920
921 if (filter.group != -1 && group != filter.group)
922 return -1;
923 }
924
925 if (tb[IFLA_MASTER]) {
926 int master = rta_getattr_u32(tb[IFLA_MASTER]);
927
928 if (filter.master > 0 && master != filter.master)
929 return -1;
930 } else if (filter.master > 0)
931 return -1;
932
933 if (filter.kind && match_link_kind(tb, filter.kind, 0))
934 return -1;
935
936 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
937 return -1;
938
939 if (n->nlmsg_type == RTM_DELLINK)
940 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
941
942 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
943 print_color_string(PRINT_ANY, COLOR_IFNAME, "ifname", "%s", name);
944
945 if (tb[IFLA_LINK]) {
946 int iflink = rta_getattr_u32(tb[IFLA_LINK]);
947
948 if (iflink == 0)
949 print_null(PRINT_ANY, "link", "@%s: ", "NONE");
950 else {
951 if (tb[IFLA_LINK_NETNSID])
952 print_int(PRINT_ANY,
953 "link_index", "@if%d: ", iflink);
954 else {
955 print_string(PRINT_ANY,
956 "link",
957 "@%s: ",
958 ll_index_to_name(iflink));
959 m_flag = ll_index_to_flags(iflink);
960 m_flag = !(m_flag & IFF_UP);
961 }
962 }
963 } else {
964 print_string(PRINT_FP, NULL, ": ", NULL);
965 }
966 print_link_flags(fp, ifi->ifi_flags, m_flag);
967
968 if (tb[IFLA_MTU])
969 print_int(PRINT_ANY,
970 "mtu", "mtu %u ",
971 rta_getattr_u32(tb[IFLA_MTU]));
972 if (tb[IFLA_XDP])
973 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
974 if (tb[IFLA_QDISC])
975 print_string(PRINT_ANY,
976 "qdisc",
977 "qdisc %s ",
978 rta_getattr_str(tb[IFLA_QDISC]));
979 if (tb[IFLA_MASTER]) {
980 int master = rta_getattr_u32(tb[IFLA_MASTER]);
981
982 print_color_string(PRINT_ANY,
983 COLOR_IFNAME,
984 "master",
985 "master %s ",
986 ll_index_to_name(master));
987 }
988
989 if (tb[IFLA_OPERSTATE])
990 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
991
992 if (do_link && tb[IFLA_LINKMODE])
993 print_linkmode(fp, tb[IFLA_LINKMODE]);
994
995 if (tb[IFLA_GROUP]) {
996 SPRINT_BUF(b1);
997 int group = rta_getattr_u32(tb[IFLA_GROUP]);
998
999 print_string(PRINT_ANY,
1000 "group",
1001 "group %s ",
1002 rtnl_group_n2a(group, b1, sizeof(b1)));
1003 }
1004
1005 if (filter.showqueue)
1006 print_queuelen(fp, tb);
1007
1008 if (tb[IFLA_EVENT])
1009 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
1010
1011 if (!filter.family || filter.family == AF_PACKET || show_details) {
1012 SPRINT_BUF(b1);
1013
1014 print_string(PRINT_FP, NULL, "%s", _SL_);
1015 print_string(PRINT_ANY,
1016 "link_type",
1017 " link/%s ",
1018 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
1019 if (tb[IFLA_ADDRESS]) {
1020 print_color_string(PRINT_ANY,
1021 COLOR_MAC,
1022 "address",
1023 "%s",
1024 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
1025 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
1026 ifi->ifi_type,
1027 b1, sizeof(b1)));
1028 }
1029 if (tb[IFLA_BROADCAST]) {
1030 if (ifi->ifi_flags&IFF_POINTOPOINT) {
1031 print_string(PRINT_FP, NULL, " peer ", NULL);
1032 print_bool(PRINT_JSON,
1033 "link_pointtopoint", NULL, true);
1034 } else {
1035 print_string(PRINT_FP, NULL, " brd ", NULL);
1036 }
1037 print_color_string(PRINT_ANY,
1038 COLOR_MAC,
1039 "broadcast",
1040 "%s",
1041 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
1042 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
1043 ifi->ifi_type,
1044 b1, sizeof(b1)));
1045 }
1046 }
1047
1048 if (tb[IFLA_LINK_NETNSID]) {
1049 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
1050
1051 if (is_json_context()) {
1052 print_int(PRINT_JSON, "link_netnsid", NULL, id);
1053 } else {
1054 if (id >= 0)
1055 print_int(PRINT_FP, NULL,
1056 " link-netnsid %d", id);
1057 else
1058 print_string(PRINT_FP, NULL,
1059 " link-netnsid %s", "unknown");
1060 }
1061 }
1062
1063 if (tb[IFLA_PROTO_DOWN]) {
1064 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1065 print_bool(PRINT_ANY,
1066 "proto_down", " protodown on ", true);
1067 }
1068
1069 if (show_details) {
1070 if (tb[IFLA_PROMISCUITY])
1071 print_uint(PRINT_ANY,
1072 "promiscuity",
1073 " promiscuity %u ",
1074 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1075
1076 if (tb[IFLA_LINKINFO])
1077 print_linktype(fp, tb[IFLA_LINKINFO]);
1078
1079 if (do_link && tb[IFLA_AF_SPEC])
1080 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1081
1082 if (tb[IFLA_NUM_TX_QUEUES])
1083 print_uint(PRINT_ANY,
1084 "num_tx_queues",
1085 "numtxqueues %u ",
1086 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1087
1088 if (tb[IFLA_NUM_RX_QUEUES])
1089 print_uint(PRINT_ANY,
1090 "num_rx_queues",
1091 "numrxqueues %u ",
1092 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1093
1094 if (tb[IFLA_GSO_MAX_SIZE])
1095 print_uint(PRINT_ANY,
1096 "gso_max_size",
1097 "gso_max_size %u ",
1098 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1099
1100 if (tb[IFLA_GSO_MAX_SEGS])
1101 print_uint(PRINT_ANY,
1102 "gso_max_segs",
1103 "gso_max_segs %u ",
1104 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1105
1106 if (tb[IFLA_PHYS_PORT_NAME])
1107 print_string(PRINT_ANY,
1108 "phys_port_name",
1109 "portname %s ",
1110 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1111
1112 if (tb[IFLA_PHYS_PORT_ID]) {
1113 SPRINT_BUF(b1);
1114 print_string(PRINT_ANY,
1115 "phys_port_id",
1116 "portid %s ",
1117 hexstring_n2a(
1118 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1119 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1120 b1, sizeof(b1)));
1121 }
1122
1123 if (tb[IFLA_PHYS_SWITCH_ID]) {
1124 SPRINT_BUF(b1);
1125 print_string(PRINT_ANY,
1126 "phys_switch_id",
1127 "switchid %s ",
1128 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1129 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1130 b1, sizeof(b1)));
1131 }
1132 }
1133
1134 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1135 print_string(PRINT_FP, NULL, "%s ", _SL_);
1136 print_string(PRINT_ANY,
1137 "ifalias",
1138 "alias %s",
1139 rta_getattr_str(tb[IFLA_IFALIAS]));
1140 }
1141
1142 if ((do_link || show_details) && tb[IFLA_XDP])
1143 xdp_dump(fp, tb[IFLA_XDP], true, true);
1144
1145 if (do_link && show_stats) {
1146 print_string(PRINT_FP, NULL, "%s", _SL_);
1147 __print_link_stats(fp, tb);
1148 }
1149
1150 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1151 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1152 int rem = RTA_PAYLOAD(vflist);
1153
1154 open_json_array(PRINT_JSON, "vfinfo_list");
1155 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1156 open_json_object(NULL);
1157 print_vfinfo(fp, i);
1158 close_json_object();
1159 }
1160 close_json_array(PRINT_JSON, NULL);
1161 }
1162
1163 print_string(PRINT_FP, NULL, "\n", NULL);
1164 fflush(fp);
1165 return 1;
1166 }
1167
1168 static int flush_update(void)
1169 {
1170
1171 /*
1172 * Note that the kernel may delete multiple addresses for one
1173 * delete request (e.g. if ipv4 address promotion is disabled).
1174 * Since a flush operation is really a series of delete requests
1175 * its possible that we may request an address delete that has
1176 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1177 * errors returned from a flush request
1178 */
1179 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1180 (errno != EADDRNOTAVAIL)) {
1181 perror("Failed to send flush request");
1182 return -1;
1183 }
1184 filter.flushp = 0;
1185 return 0;
1186 }
1187
1188 static int set_lifetime(unsigned int *lifetime, char *argv)
1189 {
1190 if (strcmp(argv, "forever") == 0)
1191 *lifetime = INFINITY_LIFE_TIME;
1192 else if (get_u32(lifetime, argv, 0))
1193 return -1;
1194
1195 return 0;
1196 }
1197
1198 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1199 struct rtattr *ifa_flags_attr)
1200 {
1201 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1202 ifa->ifa_flags;
1203 }
1204
1205 /* Mapping from argument to address flag mask */
1206 struct {
1207 const char *name;
1208 unsigned long value;
1209 } ifa_flag_names[] = {
1210 { "secondary", IFA_F_SECONDARY },
1211 { "temporary", IFA_F_SECONDARY },
1212 { "nodad", IFA_F_NODAD },
1213 { "optimistic", IFA_F_OPTIMISTIC },
1214 { "dadfailed", IFA_F_DADFAILED },
1215 { "home", IFA_F_HOMEADDRESS },
1216 { "deprecated", IFA_F_DEPRECATED },
1217 { "tentative", IFA_F_TENTATIVE },
1218 { "permanent", IFA_F_PERMANENT },
1219 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1220 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1221 { "autojoin", IFA_F_MCAUTOJOIN },
1222 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1223 };
1224
1225 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1226 unsigned int flags)
1227 {
1228 unsigned int i;
1229
1230 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1231 unsigned long mask = ifa_flag_names[i].value;
1232
1233 if (mask == IFA_F_PERMANENT) {
1234 if (!(flags & mask))
1235 print_bool(PRINT_ANY,
1236 "dynamic", "dynamic ", true);
1237 } else if (flags & mask) {
1238 if (mask == IFA_F_SECONDARY &&
1239 ifa->ifa_family == AF_INET6) {
1240 print_bool(PRINT_ANY,
1241 "temporary", "temporary ", true);
1242 } else {
1243 print_string(PRINT_FP, NULL,
1244 "%s ", ifa_flag_names[i].name);
1245 print_bool(PRINT_JSON,
1246 ifa_flag_names[i].name, NULL, true);
1247 }
1248 }
1249
1250 flags &= ~mask;
1251 }
1252
1253 if (flags) {
1254 if (is_json_context()) {
1255 SPRINT_BUF(b1);
1256
1257 snprintf(b1, sizeof(b1), "%02x", flags);
1258 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1259 } else {
1260 fprintf(fp, "flags %02x ", flags);
1261 }
1262 }
1263
1264 }
1265
1266 static int get_filter(const char *arg)
1267 {
1268 unsigned int i;
1269
1270 /* Special cases */
1271 if (strcmp(arg, "dynamic") == 0) {
1272 filter.flags &= ~IFA_F_PERMANENT;
1273 filter.flagmask |= IFA_F_PERMANENT;
1274 } else if (strcmp(arg, "primary") == 0) {
1275 filter.flags &= ~IFA_F_SECONDARY;
1276 filter.flagmask |= IFA_F_SECONDARY;
1277 } else if (*arg == '-') {
1278 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1279 if (strcmp(arg + 1, ifa_flag_names[i].name))
1280 continue;
1281
1282 filter.flags &= ifa_flag_names[i].value;
1283 filter.flagmask |= ifa_flag_names[i].value;
1284 return 0;
1285 }
1286
1287 return -1;
1288 } else {
1289 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1290 if (strcmp(arg, ifa_flag_names[i].name))
1291 continue;
1292 filter.flags |= ifa_flag_names[i].value;
1293 filter.flagmask |= ifa_flag_names[i].value;
1294 return 0;
1295 }
1296 return -1;
1297 }
1298
1299 return 0;
1300 }
1301
1302 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1303 {
1304 const char *label;
1305
1306 if (!filter.label)
1307 return 0;
1308
1309 if (rta)
1310 label = RTA_DATA(rta);
1311 else
1312 label = ll_index_to_name(ifindex);
1313
1314 return fnmatch(filter.label, label, 0);
1315 }
1316
1317 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
1318 void *arg)
1319 {
1320 FILE *fp = arg;
1321 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1322 int len = n->nlmsg_len;
1323 unsigned int ifa_flags;
1324 struct rtattr *rta_tb[IFA_MAX+1];
1325
1326 SPRINT_BUF(b1);
1327
1328 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1329 return 0;
1330 len -= NLMSG_LENGTH(sizeof(*ifa));
1331 if (len < 0) {
1332 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1333 return -1;
1334 }
1335
1336 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1337 return 0;
1338
1339 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1340 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1341
1342 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1343
1344 if (!rta_tb[IFA_LOCAL])
1345 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1346 if (!rta_tb[IFA_ADDRESS])
1347 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1348
1349 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1350 return 0;
1351 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1352 return 0;
1353 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1354 return 0;
1355
1356 if (filter.family && filter.family != ifa->ifa_family)
1357 return 0;
1358
1359 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1360 return 0;
1361
1362 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1363 return 0;
1364
1365 if (filter.flushb) {
1366 struct nlmsghdr *fn;
1367
1368 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1369 if (flush_update())
1370 return -1;
1371 }
1372 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1373 memcpy(fn, n, n->nlmsg_len);
1374 fn->nlmsg_type = RTM_DELADDR;
1375 fn->nlmsg_flags = NLM_F_REQUEST;
1376 fn->nlmsg_seq = ++rth.seq;
1377 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1378 filter.flushed++;
1379 if (show_stats < 2)
1380 return 0;
1381 }
1382
1383 if (n->nlmsg_type == RTM_DELADDR)
1384 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1385
1386 if (!brief) {
1387 const char *name;
1388
1389 if (filter.oneline || filter.flushb) {
1390 const char *dev = ll_index_to_name(ifa->ifa_index);
1391
1392 if (is_json_context()) {
1393 print_int(PRINT_JSON,
1394 "index", NULL, ifa->ifa_index);
1395 print_string(PRINT_JSON, "dev", NULL, dev);
1396 } else {
1397 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1398 }
1399 }
1400
1401 name = family_name(ifa->ifa_family);
1402 if (*name != '?') {
1403 print_string(PRINT_ANY, "family", " %s ", name);
1404 } else {
1405 print_int(PRINT_ANY, "family_index", " family %d ",
1406 ifa->ifa_family);
1407 }
1408 }
1409
1410 if (rta_tb[IFA_LOCAL]) {
1411 print_color_string(PRINT_ANY,
1412 ifa_family_color(ifa->ifa_family),
1413 "local", "%s",
1414 format_host_rta(ifa->ifa_family,
1415 rta_tb[IFA_LOCAL]));
1416 if (rta_tb[IFA_ADDRESS] &&
1417 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1418 RTA_DATA(rta_tb[IFA_LOCAL]),
1419 ifa->ifa_family == AF_INET ? 4 : 16)) {
1420 print_string(PRINT_FP, NULL, " %s ", "peer");
1421 print_color_string(PRINT_ANY,
1422 ifa_family_color(ifa->ifa_family),
1423 "address",
1424 "%s",
1425 format_host_rta(ifa->ifa_family,
1426 rta_tb[IFA_ADDRESS]));
1427 }
1428 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1429 }
1430
1431 if (brief)
1432 goto brief_exit;
1433
1434 if (rta_tb[IFA_BROADCAST]) {
1435 print_string(PRINT_FP, NULL, "%s ", "brd");
1436 print_color_string(PRINT_ANY,
1437 ifa_family_color(ifa->ifa_family),
1438 "broadcast",
1439 "%s ",
1440 format_host_rta(ifa->ifa_family,
1441 rta_tb[IFA_BROADCAST]));
1442 }
1443
1444 if (rta_tb[IFA_ANYCAST]) {
1445 print_string(PRINT_FP, NULL, "%s ", "any");
1446 print_color_string(PRINT_ANY,
1447 ifa_family_color(ifa->ifa_family),
1448 "anycast",
1449 "%s ",
1450 format_host_rta(ifa->ifa_family,
1451 rta_tb[IFA_ANYCAST]));
1452 }
1453
1454 print_string(PRINT_ANY,
1455 "scope",
1456 "scope %s ",
1457 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1458
1459 print_ifa_flags(fp, ifa, ifa_flags);
1460
1461 if (rta_tb[IFA_LABEL])
1462 print_string(PRINT_ANY,
1463 "label",
1464 "%s",
1465 rta_getattr_str(rta_tb[IFA_LABEL]));
1466
1467 if (rta_tb[IFA_CACHEINFO]) {
1468 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1469
1470 print_string(PRINT_FP, NULL, "%s", _SL_);
1471 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1472
1473 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1474 print_uint(PRINT_JSON,
1475 "valid_life_time",
1476 NULL, INFINITY_LIFE_TIME);
1477 print_string(PRINT_FP, NULL, "%s", "forever");
1478 } else {
1479 print_uint(PRINT_ANY,
1480 "valid_life_time", "%usec", ci->ifa_valid);
1481 }
1482
1483 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1484 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1485 print_uint(PRINT_JSON,
1486 "preferred_life_time",
1487 NULL, INFINITY_LIFE_TIME);
1488 print_string(PRINT_FP, NULL, "%s", "forever");
1489 } else {
1490 if (ifa_flags & IFA_F_DEPRECATED)
1491 print_int(PRINT_ANY,
1492 "preferred_life_time",
1493 "%dsec",
1494 ci->ifa_prefered);
1495 else
1496 print_uint(PRINT_ANY,
1497 "preferred_life_time",
1498 "%usec",
1499 ci->ifa_prefered);
1500 }
1501 }
1502 print_string(PRINT_FP, NULL, "%s", "\n");
1503 brief_exit:
1504 fflush(fp);
1505 return 0;
1506 }
1507
1508 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1509 struct nlmsg_list *ainfo, FILE *fp)
1510 {
1511 open_json_array(PRINT_JSON, "addr_info");
1512 for ( ; ainfo ; ainfo = ainfo->next) {
1513 struct nlmsghdr *n = &ainfo->h;
1514 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1515
1516 if (n->nlmsg_type != RTM_NEWADDR)
1517 continue;
1518
1519 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1520 return -1;
1521
1522 if (ifa->ifa_index != ifi->ifi_index ||
1523 (filter.family && filter.family != ifa->ifa_family))
1524 continue;
1525
1526 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1527 continue;
1528
1529 open_json_object(NULL);
1530 print_addrinfo(NULL, n, fp);
1531 close_json_object();
1532 }
1533 close_json_array(PRINT_JSON, NULL);
1534
1535 if (brief) {
1536 print_string(PRINT_FP, NULL, "%s", "\n");
1537 fflush(fp);
1538 }
1539 return 0;
1540 }
1541
1542
1543 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1544 void *arg)
1545 {
1546 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1547 struct nlmsg_list *h;
1548
1549 h = malloc(n->nlmsg_len+sizeof(void *));
1550 if (h == NULL)
1551 return -1;
1552
1553 memcpy(&h->h, n, n->nlmsg_len);
1554 h->next = NULL;
1555
1556 if (lchain->tail)
1557 lchain->tail->next = h;
1558 else
1559 lchain->head = h;
1560 lchain->tail = h;
1561
1562 ll_remember_index(who, n, NULL);
1563 return 0;
1564 }
1565
1566 static __u32 ipadd_dump_magic = 0x47361222;
1567
1568 static int ipadd_save_prep(void)
1569 {
1570 int ret;
1571
1572 if (isatty(STDOUT_FILENO)) {
1573 fprintf(stderr, "Not sending a binary stream to stdout\n");
1574 return -1;
1575 }
1576
1577 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1578 if (ret != sizeof(ipadd_dump_magic)) {
1579 fprintf(stderr, "Can't write magic to dump file\n");
1580 return -1;
1581 }
1582
1583 return 0;
1584 }
1585
1586 static int ipadd_dump_check_magic(void)
1587 {
1588 int ret;
1589 __u32 magic = 0;
1590
1591 if (isatty(STDIN_FILENO)) {
1592 fprintf(stderr, "Can't restore address dump from a terminal\n");
1593 return -1;
1594 }
1595
1596 ret = fread(&magic, sizeof(magic), 1, stdin);
1597 if (magic != ipadd_dump_magic) {
1598 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1599 return -1;
1600 }
1601
1602 return 0;
1603 }
1604
1605 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
1606 void *arg)
1607 {
1608 int ret;
1609
1610 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1611 if ((ret > 0) && (ret != n->nlmsg_len)) {
1612 fprintf(stderr, "Short write while saving nlmsg\n");
1613 ret = -EIO;
1614 }
1615
1616 return ret == n->nlmsg_len ? 0 : ret;
1617 }
1618
1619 static int show_handler(const struct sockaddr_nl *nl,
1620 struct rtnl_ctrl_data *ctrl,
1621 struct nlmsghdr *n, void *arg)
1622 {
1623 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1624
1625 open_json_object(NULL);
1626 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1627 print_addrinfo(NULL, n, stdout);
1628 close_json_object();
1629 return 0;
1630 }
1631
1632 static int ipaddr_showdump(void)
1633 {
1634 int err;
1635
1636 if (ipadd_dump_check_magic())
1637 exit(-1);
1638
1639 new_json_obj(json);
1640 open_json_object(NULL);
1641 open_json_array(PRINT_JSON, "addr_info");
1642
1643 err = rtnl_from_file(stdin, &show_handler, NULL);
1644
1645 close_json_array(PRINT_JSON, NULL);
1646 close_json_object();
1647 delete_json_obj();
1648
1649 exit(err);
1650 }
1651
1652 static int restore_handler(const struct sockaddr_nl *nl,
1653 struct rtnl_ctrl_data *ctrl,
1654 struct nlmsghdr *n, void *arg)
1655 {
1656 int ret;
1657
1658 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1659
1660 ll_init_map(&rth);
1661
1662 ret = rtnl_talk(&rth, n, NULL);
1663 if ((ret < 0) && (errno == EEXIST))
1664 ret = 0;
1665
1666 return ret;
1667 }
1668
1669 static int ipaddr_restore(void)
1670 {
1671 if (ipadd_dump_check_magic())
1672 exit(-1);
1673
1674 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1675 }
1676
1677 void free_nlmsg_chain(struct nlmsg_chain *info)
1678 {
1679 struct nlmsg_list *l, *n;
1680
1681 for (l = info->head; l; l = n) {
1682 n = l->next;
1683 free(l);
1684 }
1685 }
1686
1687 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1688 {
1689 struct nlmsg_list *l, **lp;
1690
1691 lp = &linfo->head;
1692 while ((l = *lp) != NULL) {
1693 int ok = 0;
1694 int missing_net_address = 1;
1695 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1696 struct nlmsg_list *a;
1697
1698 for (a = ainfo->head; a; a = a->next) {
1699 struct nlmsghdr *n = &a->h;
1700 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1701 struct rtattr *tb[IFA_MAX + 1];
1702 unsigned int ifa_flags;
1703
1704 if (ifa->ifa_index != ifi->ifi_index)
1705 continue;
1706 missing_net_address = 0;
1707 if (filter.family && filter.family != ifa->ifa_family)
1708 continue;
1709 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1710 continue;
1711
1712 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1713 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1714
1715 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1716 continue;
1717
1718 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1719 continue;
1720
1721 if (!tb[IFA_LOCAL])
1722 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1723 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1724 continue;
1725
1726 ok = 1;
1727 break;
1728 }
1729 if (missing_net_address &&
1730 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1731 ok = 1;
1732 if (!ok) {
1733 *lp = l->next;
1734 free(l);
1735 } else
1736 lp = &l->next;
1737 }
1738 }
1739
1740 static int ipaddr_flush(void)
1741 {
1742 int round = 0;
1743 char flushb[4096-512];
1744
1745 filter.flushb = flushb;
1746 filter.flushp = 0;
1747 filter.flushe = sizeof(flushb);
1748
1749 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1750 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1751 perror("Cannot send dump request");
1752 exit(1);
1753 }
1754 filter.flushed = 0;
1755 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1756 stdout, NLM_F_DUMP_INTR) < 0) {
1757 fprintf(stderr, "Flush terminated\n");
1758 exit(1);
1759 }
1760 if (filter.flushed == 0) {
1761 flush_done:
1762 if (show_stats) {
1763 if (round == 0)
1764 printf("Nothing to flush.\n");
1765 else
1766 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1767 }
1768 fflush(stdout);
1769 return 0;
1770 }
1771 round++;
1772 if (flush_update() < 0)
1773 return 1;
1774
1775 if (show_stats) {
1776 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1777 fflush(stdout);
1778 }
1779
1780 /* If we are flushing, and specifying primary, then we
1781 * want to flush only a single round. Otherwise, we'll
1782 * start flushing secondaries that were promoted to
1783 * primaries.
1784 */
1785 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1786 goto flush_done;
1787 }
1788 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1789 fflush(stderr);
1790 return 1;
1791 }
1792
1793 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1794 {
1795 int err;
1796
1797 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1798 if (err)
1799 return err;
1800
1801 if (filter.master) {
1802 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1803 if (err)
1804 return err;
1805 }
1806
1807 if (filter.kind) {
1808 struct rtattr *linkinfo;
1809
1810 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1811
1812 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1813 strlen(filter.kind));
1814 if (err)
1815 return err;
1816
1817 addattr_nest_end(nlh, linkinfo);
1818 }
1819
1820 return 0;
1821 }
1822
1823 /* fills in linfo with link data and optionally ainfo with address info
1824 * caller can walk lists as desired and must call free_nlmsg_chain for
1825 * both when done
1826 */
1827 int ip_linkaddr_list(int family, req_filter_fn_t filter_fn,
1828 struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1829 {
1830 if (rtnl_wilddump_req_filter_fn(&rth, preferred_family, RTM_GETLINK,
1831 filter_fn) < 0) {
1832 perror("Cannot send dump request");
1833 return 1;
1834 }
1835
1836 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1837 fprintf(stderr, "Dump terminated\n");
1838 return 1;
1839 }
1840
1841 if (ainfo) {
1842 if (rtnl_wilddump_request(&rth, family, RTM_GETADDR) < 0) {
1843 perror("Cannot send dump request");
1844 return 1;
1845 }
1846
1847 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1848 fprintf(stderr, "Dump terminated\n");
1849 return 1;
1850 }
1851 }
1852
1853 return 0;
1854 }
1855
1856 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1857 {
1858 struct nlmsg_chain linfo = { NULL, NULL};
1859 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = NULL;
1860 struct nlmsg_list *l;
1861 char *filter_dev = NULL;
1862 int no_link = 0;
1863
1864 ipaddr_reset_filter(oneline, 0);
1865 filter.showqueue = 1;
1866 filter.family = preferred_family;
1867 filter.group = -1;
1868
1869 if (action == IPADD_FLUSH) {
1870 if (argc <= 0) {
1871 fprintf(stderr, "Flush requires arguments.\n");
1872
1873 return -1;
1874 }
1875 if (filter.family == AF_PACKET) {
1876 fprintf(stderr, "Cannot flush link addresses.\n");
1877 return -1;
1878 }
1879 }
1880
1881 while (argc > 0) {
1882 if (strcmp(*argv, "to") == 0) {
1883 NEXT_ARG();
1884 if (get_prefix(&filter.pfx, *argv, filter.family))
1885 invarg("invalid \"to\"\n", *argv);
1886 if (filter.family == AF_UNSPEC)
1887 filter.family = filter.pfx.family;
1888 } else if (strcmp(*argv, "scope") == 0) {
1889 unsigned int scope = 0;
1890
1891 NEXT_ARG();
1892 filter.scopemask = -1;
1893 if (rtnl_rtscope_a2n(&scope, *argv)) {
1894 if (strcmp(*argv, "all") != 0)
1895 invarg("invalid \"scope\"\n", *argv);
1896 scope = RT_SCOPE_NOWHERE;
1897 filter.scopemask = 0;
1898 }
1899 filter.scope = scope;
1900 } else if (strcmp(*argv, "up") == 0) {
1901 filter.up = 1;
1902 } else if (get_filter(*argv) == 0) {
1903
1904 } else if (strcmp(*argv, "label") == 0) {
1905 NEXT_ARG();
1906 filter.label = *argv;
1907 } else if (strcmp(*argv, "group") == 0) {
1908 NEXT_ARG();
1909 if (rtnl_group_a2n(&filter.group, *argv))
1910 invarg("Invalid \"group\" value\n", *argv);
1911 } else if (strcmp(*argv, "master") == 0) {
1912 int ifindex;
1913
1914 NEXT_ARG();
1915 ifindex = ll_name_to_index(*argv);
1916 if (!ifindex)
1917 invarg("Device does not exist\n", *argv);
1918 filter.master = ifindex;
1919 } else if (strcmp(*argv, "vrf") == 0) {
1920 int ifindex;
1921
1922 NEXT_ARG();
1923 ifindex = ll_name_to_index(*argv);
1924 if (!ifindex)
1925 invarg("Not a valid VRF name\n", *argv);
1926 if (!name_is_vrf(*argv))
1927 invarg("Not a valid VRF name\n", *argv);
1928 filter.master = ifindex;
1929 } else if (strcmp(*argv, "type") == 0) {
1930 int soff;
1931
1932 NEXT_ARG();
1933 soff = strlen(*argv) - strlen("_slave");
1934 if (!strcmp(*argv + soff, "_slave")) {
1935 (*argv)[soff] = '\0';
1936 filter.slave_kind = *argv;
1937 } else {
1938 filter.kind = *argv;
1939 }
1940 } else {
1941 if (strcmp(*argv, "dev") == 0)
1942 NEXT_ARG();
1943 else if (matches(*argv, "help") == 0)
1944 usage();
1945 if (filter_dev)
1946 duparg2("dev", *argv);
1947 filter_dev = *argv;
1948 }
1949 argv++; argc--;
1950 }
1951
1952 if (filter_dev) {
1953 filter.ifindex = ll_name_to_index(filter_dev);
1954 if (filter.ifindex <= 0) {
1955 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1956 return -1;
1957 }
1958 }
1959
1960 if (action == IPADD_FLUSH)
1961 return ipaddr_flush();
1962
1963 if (action == IPADD_SAVE) {
1964 if (ipadd_save_prep())
1965 exit(1);
1966
1967 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1968 perror("Cannot send dump request");
1969 exit(1);
1970 }
1971
1972 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1973 fprintf(stderr, "Save terminated\n");
1974 exit(1);
1975 }
1976
1977 exit(0);
1978 }
1979
1980 /*
1981 * Initialize a json_writer and open an array object
1982 * if -json was specified.
1983 */
1984 new_json_obj(json);
1985
1986 /*
1987 * If only filter_dev present and none of the other
1988 * link filters are present, use RTM_GETLINK to get
1989 * the link device
1990 */
1991 if (filter_dev && filter.group == -1 && do_link == 1) {
1992 if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) {
1993 perror("Cannot send link get request");
1994 delete_json_obj();
1995 exit(1);
1996 }
1997 delete_json_obj();
1998 exit(0);
1999 }
2000
2001 if (filter.family != AF_PACKET) {
2002 ainfo = &_ainfo;
2003
2004 if (filter.oneline)
2005 no_link = 1;
2006 }
2007
2008 if (ip_linkaddr_list(filter.family, iplink_filter_req,
2009 &linfo, ainfo) != 0)
2010 goto out;
2011
2012 if (filter.family != AF_PACKET)
2013 ipaddr_filter(&linfo, ainfo);
2014
2015 for (l = linfo.head; l; l = l->next) {
2016 int res = 0;
2017 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
2018
2019 open_json_object(NULL);
2020 if (brief) {
2021 if (print_linkinfo_brief(NULL, &l->h, stdout) == 0)
2022 if (filter.family != AF_PACKET)
2023 print_selected_addrinfo(ifi,
2024 ainfo->head,
2025 stdout);
2026 } else if (no_link ||
2027 (res = print_linkinfo(NULL, &l->h, stdout)) >= 0) {
2028 if (filter.family != AF_PACKET)
2029 print_selected_addrinfo(ifi,
2030 ainfo->head, stdout);
2031 if (res > 0 && !do_link && show_stats)
2032 print_link_stats(stdout, &l->h);
2033 }
2034 close_json_object();
2035 }
2036 fflush(stdout);
2037
2038 out:
2039 if (ainfo)
2040 free_nlmsg_chain(ainfo);
2041 free_nlmsg_chain(&linfo);
2042 delete_json_obj();
2043 return 0;
2044 }
2045
2046 static void
2047 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2048 {
2049 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2050 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2051 struct ifla_vf_rate *vf_rate;
2052 int rem;
2053
2054 rem = RTA_PAYLOAD(vflist);
2055
2056 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2057 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2058
2059 if (!vf[IFLA_VF_RATE]) {
2060 fprintf(stderr, "VF min/max rate API not supported\n");
2061 exit(1);
2062 }
2063
2064 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2065 if (vf_rate->vf == vfnum) {
2066 *min = vf_rate->min_tx_rate;
2067 *max = vf_rate->max_tx_rate;
2068 return;
2069 }
2070 }
2071 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2072 exit(1);
2073 }
2074
2075 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, int idx)
2076 {
2077 struct nlmsg_chain linfo = { NULL, NULL};
2078 struct rtattr *tb[IFLA_MAX+1];
2079 struct ifinfomsg *ifi;
2080 struct nlmsg_list *l;
2081 struct nlmsghdr *n;
2082 int len;
2083
2084 if (rtnl_wilddump_request(&rth, AF_UNSPEC, RTM_GETLINK) < 0) {
2085 perror("Cannot send dump request");
2086 exit(1);
2087 }
2088 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2089 fprintf(stderr, "Dump terminated\n");
2090 exit(1);
2091 }
2092 for (l = linfo.head; l; l = l->next) {
2093 n = &l->h;
2094 ifi = NLMSG_DATA(n);
2095
2096 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2097 if (len < 0 || (idx && idx != ifi->ifi_index))
2098 continue;
2099
2100 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2101
2102 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2103 ipaddr_loop_each_vf(tb, vfnum, min, max);
2104 return;
2105 }
2106 }
2107 }
2108
2109 int ipaddr_list_link(int argc, char **argv)
2110 {
2111 preferred_family = AF_PACKET;
2112 do_link = 1;
2113 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2114 }
2115
2116 void ipaddr_reset_filter(int oneline, int ifindex)
2117 {
2118 memset(&filter, 0, sizeof(filter));
2119 filter.oneline = oneline;
2120 filter.ifindex = ifindex;
2121 }
2122
2123 static int default_scope(inet_prefix *lcl)
2124 {
2125 if (lcl->family == AF_INET) {
2126 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2127 return RT_SCOPE_HOST;
2128 }
2129 return 0;
2130 }
2131
2132 static bool ipaddr_is_multicast(inet_prefix *a)
2133 {
2134 if (a->family == AF_INET)
2135 return IN_MULTICAST(ntohl(a->data[0]));
2136 else if (a->family == AF_INET6)
2137 return IN6_IS_ADDR_MULTICAST(a->data);
2138 else
2139 return false;
2140 }
2141
2142 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2143 {
2144 struct {
2145 struct nlmsghdr n;
2146 struct ifaddrmsg ifa;
2147 char buf[256];
2148 } req = {
2149 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2150 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2151 .n.nlmsg_type = cmd,
2152 .ifa.ifa_family = preferred_family,
2153 };
2154 char *d = NULL;
2155 char *l = NULL;
2156 char *lcl_arg = NULL;
2157 char *valid_lftp = NULL;
2158 char *preferred_lftp = NULL;
2159 inet_prefix lcl = {};
2160 inet_prefix peer;
2161 int local_len = 0;
2162 int peer_len = 0;
2163 int brd_len = 0;
2164 int any_len = 0;
2165 int scoped = 0;
2166 __u32 preferred_lft = INFINITY_LIFE_TIME;
2167 __u32 valid_lft = INFINITY_LIFE_TIME;
2168 unsigned int ifa_flags = 0;
2169
2170 while (argc > 0) {
2171 if (strcmp(*argv, "peer") == 0 ||
2172 strcmp(*argv, "remote") == 0) {
2173 NEXT_ARG();
2174
2175 if (peer_len)
2176 duparg("peer", *argv);
2177 get_prefix(&peer, *argv, req.ifa.ifa_family);
2178 peer_len = peer.bytelen;
2179 if (req.ifa.ifa_family == AF_UNSPEC)
2180 req.ifa.ifa_family = peer.family;
2181 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2182 req.ifa.ifa_prefixlen = peer.bitlen;
2183 } else if (matches(*argv, "broadcast") == 0 ||
2184 strcmp(*argv, "brd") == 0) {
2185 inet_prefix addr;
2186
2187 NEXT_ARG();
2188 if (brd_len)
2189 duparg("broadcast", *argv);
2190 if (strcmp(*argv, "+") == 0)
2191 brd_len = -1;
2192 else if (strcmp(*argv, "-") == 0)
2193 brd_len = -2;
2194 else {
2195 get_addr(&addr, *argv, req.ifa.ifa_family);
2196 if (req.ifa.ifa_family == AF_UNSPEC)
2197 req.ifa.ifa_family = addr.family;
2198 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2199 brd_len = addr.bytelen;
2200 }
2201 } else if (strcmp(*argv, "anycast") == 0) {
2202 inet_prefix addr;
2203
2204 NEXT_ARG();
2205 if (any_len)
2206 duparg("anycast", *argv);
2207 get_addr(&addr, *argv, req.ifa.ifa_family);
2208 if (req.ifa.ifa_family == AF_UNSPEC)
2209 req.ifa.ifa_family = addr.family;
2210 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2211 any_len = addr.bytelen;
2212 } else if (strcmp(*argv, "scope") == 0) {
2213 unsigned int scope = 0;
2214
2215 NEXT_ARG();
2216 if (rtnl_rtscope_a2n(&scope, *argv))
2217 invarg("invalid scope value.", *argv);
2218 req.ifa.ifa_scope = scope;
2219 scoped = 1;
2220 } else if (strcmp(*argv, "dev") == 0) {
2221 NEXT_ARG();
2222 d = *argv;
2223 } else if (strcmp(*argv, "label") == 0) {
2224 NEXT_ARG();
2225 l = *argv;
2226 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2227 } else if (matches(*argv, "valid_lft") == 0) {
2228 if (valid_lftp)
2229 duparg("valid_lft", *argv);
2230 NEXT_ARG();
2231 valid_lftp = *argv;
2232 if (set_lifetime(&valid_lft, *argv))
2233 invarg("valid_lft value", *argv);
2234 } else if (matches(*argv, "preferred_lft") == 0) {
2235 if (preferred_lftp)
2236 duparg("preferred_lft", *argv);
2237 NEXT_ARG();
2238 preferred_lftp = *argv;
2239 if (set_lifetime(&preferred_lft, *argv))
2240 invarg("preferred_lft value", *argv);
2241 } else if (strcmp(*argv, "home") == 0) {
2242 ifa_flags |= IFA_F_HOMEADDRESS;
2243 } else if (strcmp(*argv, "nodad") == 0) {
2244 ifa_flags |= IFA_F_NODAD;
2245 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2246 ifa_flags |= IFA_F_MANAGETEMPADDR;
2247 } else if (strcmp(*argv, "noprefixroute") == 0) {
2248 ifa_flags |= IFA_F_NOPREFIXROUTE;
2249 } else if (strcmp(*argv, "autojoin") == 0) {
2250 ifa_flags |= IFA_F_MCAUTOJOIN;
2251 } else {
2252 if (strcmp(*argv, "local") == 0)
2253 NEXT_ARG();
2254 if (matches(*argv, "help") == 0)
2255 usage();
2256 if (local_len)
2257 duparg2("local", *argv);
2258 lcl_arg = *argv;
2259 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2260 if (req.ifa.ifa_family == AF_UNSPEC)
2261 req.ifa.ifa_family = lcl.family;
2262 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2263 local_len = lcl.bytelen;
2264 }
2265 argc--; argv++;
2266 }
2267 if (ifa_flags <= 0xff)
2268 req.ifa.ifa_flags = ifa_flags;
2269 else
2270 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2271
2272 if (d == NULL) {
2273 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2274 return -1;
2275 }
2276 if (l && matches(d, l) != 0) {
2277 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
2278 return -1;
2279 }
2280
2281 if (peer_len == 0 && local_len) {
2282 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2283 fprintf(stderr,
2284 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2285 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2286 " This special behaviour is likely to disappear in further releases,\n"
2287 " fix your scripts!\n", lcl_arg, local_len*8);
2288 } else {
2289 peer = lcl;
2290 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2291 }
2292 }
2293 if (req.ifa.ifa_prefixlen == 0)
2294 req.ifa.ifa_prefixlen = lcl.bitlen;
2295
2296 if (brd_len < 0 && cmd != RTM_DELADDR) {
2297 inet_prefix brd;
2298 int i;
2299
2300 if (req.ifa.ifa_family != AF_INET) {
2301 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2302 return -1;
2303 }
2304 brd = peer;
2305 if (brd.bitlen <= 30) {
2306 for (i = 31; i >= brd.bitlen; i--) {
2307 if (brd_len == -1)
2308 brd.data[0] |= htonl(1<<(31-i));
2309 else
2310 brd.data[0] &= ~htonl(1<<(31-i));
2311 }
2312 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2313 brd_len = brd.bytelen;
2314 }
2315 }
2316 if (!scoped && cmd != RTM_DELADDR)
2317 req.ifa.ifa_scope = default_scope(&lcl);
2318
2319 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
2320 fprintf(stderr, "Cannot find device \"%s\"\n", d);
2321 return -1;
2322 }
2323
2324 if (valid_lftp || preferred_lftp) {
2325 struct ifa_cacheinfo cinfo = {};
2326
2327 if (!valid_lft) {
2328 fprintf(stderr, "valid_lft is zero\n");
2329 return -1;
2330 }
2331 if (valid_lft < preferred_lft) {
2332 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2333 return -1;
2334 }
2335
2336 cinfo.ifa_prefered = preferred_lft;
2337 cinfo.ifa_valid = valid_lft;
2338 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2339 sizeof(cinfo));
2340 }
2341
2342 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2343 fprintf(stderr, "autojoin needs multicast address\n");
2344 return -1;
2345 }
2346
2347 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2348 return -2;
2349
2350 return 0;
2351 }
2352
2353 int do_ipaddr(int argc, char **argv)
2354 {
2355 if (argc < 1)
2356 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2357 if (matches(*argv, "add") == 0)
2358 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2359 if (matches(*argv, "change") == 0 ||
2360 strcmp(*argv, "chg") == 0)
2361 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2362 if (matches(*argv, "replace") == 0)
2363 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2364 if (matches(*argv, "delete") == 0)
2365 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2366 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2367 || matches(*argv, "lst") == 0)
2368 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2369 if (matches(*argv, "flush") == 0)
2370 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2371 if (matches(*argv, "save") == 0)
2372 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2373 if (matches(*argv, "showdump") == 0)
2374 return ipaddr_showdump();
2375 if (matches(*argv, "restore") == 0)
2376 return ipaddr_restore();
2377 if (matches(*argv, "help") == 0)
2378 usage();
2379 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2380 exit(-1);
2381 }
Upstream mirror of iproute2