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1 /*
2 * ipaddress.c "ip address".
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 *
11 */
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include <inttypes.h>
17 #include <fcntl.h>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/param.h>
21 #include <errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
24 #include <string.h>
25 #include <fnmatch.h>
26
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/sockios.h>
30 #include <linux/net_namespace.h>
31
32 #include "utils.h"
33 #include "rt_names.h"
34 #include "utils.h"
35 #include "ll_map.h"
36 #include "ip_common.h"
37 #include "color.h"
38
39 enum {
40 IPADD_LIST,
41 IPADD_FLUSH,
42 IPADD_SAVE,
43 };
44
45 static struct link_filter filter;
46 static int do_link;
47
48 static void usage(void) __attribute__((noreturn));
49
50 static void usage(void)
51 {
52 if (do_link)
53 iplink_usage();
54
55 fprintf(stderr, "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n");
56 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
57 fprintf(stderr, " ip address del IFADDR dev IFNAME [mngtmpaddr]\n");
58 fprintf(stderr, " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n");
59 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n");
60 fprintf(stderr, " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n");
61 fprintf(stderr, " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n");
62 fprintf(stderr, " [ label LABEL ] [up] [ vrf NAME ] ]\n");
63 fprintf(stderr, " ip address {showdump|restore}\n");
64 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
65 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
66 fprintf(stderr, " [ label IFNAME ] [ scope SCOPE-ID ] [ metric METRIC ]\n");
67 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
68 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
69 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
70 fprintf(stderr, " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n");
71 fprintf(stderr, " CONFFLAG-LIST ]\n");
72 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
73 fprintf(stderr, "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n");
74 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
75 fprintf(stderr, "LFT := forever | SECONDS\n");
76 fprintf(stderr, "TYPE := { vlan | veth | vcan | vxcan | dummy | ifb | macvlan | macvtap |\n");
77 fprintf(stderr, " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | lowpan |\n");
78 fprintf(stderr, " gre | gretap | erspan | ip6gre | ip6gretap | ip6erspan | vti |\n");
79 fprintf(stderr, " nlmon | can | bond_slave | ipvlan | geneve | bridge_slave |\n");
80 fprintf(stderr, " hsr | macsec | netdevsim }\n");
81
82 exit(-1);
83 }
84
85 static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown)
86 {
87 open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
88 if (flags & IFF_UP && !(flags & IFF_RUNNING))
89 print_string(PRINT_ANY, NULL,
90 flags ? "%s," : "%s", "NO-CARRIER");
91 flags &= ~IFF_RUNNING;
92 #define _PF(f) if (flags&IFF_##f) { \
93 flags &= ~IFF_##f ; \
94 print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); }
95 _PF(LOOPBACK);
96 _PF(BROADCAST);
97 _PF(POINTOPOINT);
98 _PF(MULTICAST);
99 _PF(NOARP);
100 _PF(ALLMULTI);
101 _PF(PROMISC);
102 _PF(MASTER);
103 _PF(SLAVE);
104 _PF(DEBUG);
105 _PF(DYNAMIC);
106 _PF(AUTOMEDIA);
107 _PF(PORTSEL);
108 _PF(NOTRAILERS);
109 _PF(UP);
110 _PF(LOWER_UP);
111 _PF(DORMANT);
112 _PF(ECHO);
113 #undef _PF
114 if (flags)
115 print_hex(PRINT_ANY, NULL, "%x", flags);
116 if (mdown)
117 print_string(PRINT_ANY, NULL, ",%s", "M-DOWN");
118 close_json_array(PRINT_ANY, "> ");
119 }
120
121 static const char *oper_states[] = {
122 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
123 "TESTING", "DORMANT", "UP"
124 };
125
126 static void print_operstate(FILE *f, __u8 state)
127 {
128 if (state >= ARRAY_SIZE(oper_states)) {
129 if (is_json_context())
130 print_uint(PRINT_JSON, "operstate_index", NULL, state);
131 else
132 print_0xhex(PRINT_FP, NULL, "state %#llx", 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(stderr,
178 "ioctl(SIOCGIFTXQLEN) failed: %s\n",
179 strerror(errno));
180 close(s);
181 return;
182 }
183 close(s);
184 qlen = ifr.ifr_qlen;
185 }
186 if (qlen)
187 print_int(PRINT_ANY, "txqlen", "qlen %d", qlen);
188 }
189
190 static const char *link_modes[] = {
191 "DEFAULT", "DORMANT"
192 };
193
194 static void print_linkmode(FILE *f, struct rtattr *tb)
195 {
196 unsigned int mode = rta_getattr_u8(tb);
197
198 if (mode >= ARRAY_SIZE(link_modes))
199 print_int(PRINT_ANY,
200 "linkmode_index",
201 "mode %d ",
202 mode);
203 else
204 print_string(PRINT_ANY,
205 "linkmode",
206 "mode %s "
207 , link_modes[mode]);
208 }
209
210 static char *parse_link_kind(struct rtattr *tb, bool slave)
211 {
212 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
213 int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND;
214
215 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
216
217 if (linkinfo[attr])
218 return RTA_DATA(linkinfo[attr]);
219
220 return "";
221 }
222
223 static int match_link_kind(struct rtattr **tb, const char *kind, bool slave)
224 {
225 if (!tb[IFLA_LINKINFO])
226 return -1;
227
228 return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind);
229 }
230
231 static void print_linktype(FILE *fp, struct rtattr *tb)
232 {
233 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
234 struct link_util *lu;
235 struct link_util *slave_lu;
236 char slave[32];
237
238 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
239 open_json_object("linkinfo");
240
241 if (linkinfo[IFLA_INFO_KIND]) {
242 const char *kind
243 = rta_getattr_str(linkinfo[IFLA_INFO_KIND]);
244
245 print_nl();
246 print_string(PRINT_ANY, "info_kind", " %s ", kind);
247
248 lu = get_link_kind(kind);
249 if (lu && lu->print_opt) {
250 struct rtattr *attr[lu->maxattr+1], **data = NULL;
251
252 if (linkinfo[IFLA_INFO_DATA]) {
253 parse_rtattr_nested(attr, lu->maxattr,
254 linkinfo[IFLA_INFO_DATA]);
255 data = attr;
256 }
257 open_json_object("info_data");
258 lu->print_opt(lu, fp, data);
259 close_json_object();
260
261 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
262 lu->print_xstats) {
263 open_json_object("info_xstats");
264 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
265 close_json_object();
266 }
267 }
268 }
269
270 if (linkinfo[IFLA_INFO_SLAVE_KIND]) {
271 const char *slave_kind
272 = rta_getattr_str(linkinfo[IFLA_INFO_SLAVE_KIND]);
273
274 print_nl();
275 print_string(PRINT_ANY,
276 "info_slave_kind",
277 " %s_slave ",
278 slave_kind);
279
280 snprintf(slave, sizeof(slave), "%s_slave", slave_kind);
281
282 slave_lu = get_link_kind(slave);
283 if (slave_lu && slave_lu->print_opt) {
284 struct rtattr *attr[slave_lu->maxattr+1], **data = NULL;
285
286 if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
287 parse_rtattr_nested(attr, slave_lu->maxattr,
288 linkinfo[IFLA_INFO_SLAVE_DATA]);
289 data = attr;
290 }
291 open_json_object("info_slave_data");
292 slave_lu->print_opt(slave_lu, fp, data);
293 close_json_object();
294 }
295 }
296 close_json_object();
297 }
298
299 static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
300 {
301 struct rtattr *inet6_attr;
302 struct rtattr *tb[IFLA_INET6_MAX + 1];
303
304 inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
305 if (!inet6_attr)
306 return;
307
308 parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
309
310 if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
311 __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]);
312 SPRINT_BUF(b1);
313
314 switch (mode) {
315 case IN6_ADDR_GEN_MODE_EUI64:
316 print_string(PRINT_ANY,
317 "inet6_addr_gen_mode",
318 "addrgenmode %s ",
319 "eui64");
320 break;
321 case IN6_ADDR_GEN_MODE_NONE:
322 print_string(PRINT_ANY,
323 "inet6_addr_gen_mode",
324 "addrgenmode %s ",
325 "none");
326 break;
327 case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
328 print_string(PRINT_ANY,
329 "inet6_addr_gen_mode",
330 "addrgenmode %s ",
331 "stable_secret");
332 break;
333 case IN6_ADDR_GEN_MODE_RANDOM:
334 print_string(PRINT_ANY,
335 "inet6_addr_gen_mode",
336 "addrgenmode %s ",
337 "random");
338 break;
339 default:
340 snprintf(b1, sizeof(b1), "%#.2hhx", mode);
341 print_string(PRINT_ANY,
342 "inet6_addr_gen_mode",
343 "addrgenmode %s ",
344 b1);
345 break;
346 }
347 }
348 }
349
350 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats);
351
352 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
353 {
354 struct ifla_vf_mac *vf_mac;
355 struct ifla_vf_tx_rate *vf_tx_rate;
356 struct rtattr *vf[IFLA_VF_MAX + 1] = {};
357
358 SPRINT_BUF(b1);
359
360 if (vfinfo->rta_type != IFLA_VF_INFO) {
361 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
362 return;
363 }
364
365 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
366
367 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
368 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
369
370 print_string(PRINT_FP, NULL, "%s ", _SL_);
371 print_int(PRINT_ANY, "vf", "vf %d ", vf_mac->vf);
372 print_string(PRINT_ANY, "mac", "MAC %s",
373 ll_addr_n2a((unsigned char *) &vf_mac->mac,
374 ETH_ALEN, 0, b1, sizeof(b1)));
375
376 if (vf[IFLA_VF_VLAN_LIST]) {
377 struct rtattr *i, *vfvlanlist = vf[IFLA_VF_VLAN_LIST];
378 int rem = RTA_PAYLOAD(vfvlanlist);
379
380 open_json_array(PRINT_JSON, "vlan_list");
381 for (i = RTA_DATA(vfvlanlist);
382 RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
383 struct ifla_vf_vlan_info *vf_vlan_info = RTA_DATA(i);
384 SPRINT_BUF(b2);
385
386 open_json_object(NULL);
387 if (vf_vlan_info->vlan)
388 print_int(PRINT_ANY,
389 "vlan",
390 ", vlan %d",
391 vf_vlan_info->vlan);
392 if (vf_vlan_info->qos)
393 print_int(PRINT_ANY,
394 "qos",
395 ", qos %d",
396 vf_vlan_info->qos);
397 if (vf_vlan_info->vlan_proto &&
398 vf_vlan_info->vlan_proto != htons(ETH_P_8021Q))
399 print_string(PRINT_ANY,
400 "protocol",
401 ", vlan protocol %s",
402 ll_proto_n2a(
403 vf_vlan_info->vlan_proto,
404 b2, sizeof(b2)));
405 close_json_object();
406 }
407 close_json_array(PRINT_JSON, NULL);
408 } else {
409 struct ifla_vf_vlan *vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
410
411 if (vf_vlan->vlan)
412 print_int(PRINT_ANY,
413 "vlan",
414 ", vlan %d",
415 vf_vlan->vlan);
416 if (vf_vlan->qos)
417 print_int(PRINT_ANY, "qos", ", qos %d", vf_vlan->qos);
418 }
419
420 if (vf_tx_rate->rate)
421 print_uint(PRINT_ANY,
422 "tx_rate",
423 ", tx rate %u (Mbps)",
424 vf_tx_rate->rate);
425
426 if (vf[IFLA_VF_RATE]) {
427 struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
428 int max_tx = vf_rate->max_tx_rate;
429 int min_tx = vf_rate->min_tx_rate;
430
431 if (is_json_context()) {
432 open_json_object("rate");
433 print_uint(PRINT_JSON, "max_tx", NULL, max_tx);
434 print_uint(PRINT_ANY, "min_tx", NULL, min_tx);
435 close_json_object();
436 } else {
437 if (max_tx)
438 fprintf(fp, ", max_tx_rate %uMbps", max_tx);
439 if (min_tx)
440 fprintf(fp, ", min_tx_rate %uMbps", min_tx);
441 }
442 }
443
444 if (vf[IFLA_VF_SPOOFCHK]) {
445 struct ifla_vf_spoofchk *vf_spoofchk =
446 RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
447
448 if (vf_spoofchk->setting != -1)
449 print_bool(PRINT_ANY,
450 "spoofchk",
451 vf_spoofchk->setting ?
452 ", spoof checking on" : ", spoof checking off",
453 vf_spoofchk->setting);
454 }
455
456 if (vf[IFLA_VF_LINK_STATE]) {
457 struct ifla_vf_link_state *vf_linkstate =
458 RTA_DATA(vf[IFLA_VF_LINK_STATE]);
459
460 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
461 print_string(PRINT_ANY,
462 "link_state",
463 ", link-state %s",
464 "auto");
465 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
466 print_string(PRINT_ANY,
467 "link_state",
468 ", link-state %s",
469 "enable");
470 else
471 print_string(PRINT_ANY,
472 "link_state",
473 ", link-state %s",
474 "disable");
475 }
476
477 if (vf[IFLA_VF_TRUST]) {
478 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
479
480 if (vf_trust->setting != -1)
481 print_bool(PRINT_ANY,
482 "trust",
483 vf_trust->setting ? ", trust on" : ", trust off",
484 vf_trust->setting);
485 }
486
487 if (vf[IFLA_VF_RSS_QUERY_EN]) {
488 struct ifla_vf_rss_query_en *rss_query =
489 RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]);
490
491 if (rss_query->setting != -1)
492 print_bool(PRINT_ANY,
493 "query_rss_en",
494 rss_query->setting ? ", query_rss on"
495 : ", query_rss off",
496 rss_query->setting);
497 }
498
499 if (vf[IFLA_VF_STATS] && show_stats)
500 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
501 }
502
503 void print_num(FILE *fp, unsigned int width, uint64_t count)
504 {
505 const char *prefix = "kMGTPE";
506 const unsigned int base = use_iec ? 1024 : 1000;
507 uint64_t powi = 1;
508 uint16_t powj = 1;
509 uint8_t precision = 2;
510 char buf[64];
511
512 if (!human_readable || count < base) {
513 fprintf(fp, "%-*"PRIu64" ", width, count);
514 return;
515 }
516
517 /* increase value by a factor of 1000/1024 and print
518 * if result is something a human can read
519 */
520 for (;;) {
521 powi *= base;
522 if (count / base < powi)
523 break;
524
525 if (!prefix[1])
526 break;
527 ++prefix;
528 }
529
530 /* try to guess a good number of digits for precision */
531 for (; precision > 0; precision--) {
532 powj *= 10;
533 if (count / powi < powj)
534 break;
535 }
536
537 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
538 (double) count / powi, *prefix, use_iec ? "i" : "");
539
540 fprintf(fp, "%-*s ", width, buf);
541 }
542
543 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
544 {
545 struct rtattr *vf[IFLA_VF_STATS_MAX + 1];
546
547 if (vfstats->rta_type != IFLA_VF_STATS) {
548 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
549 return;
550 }
551
552 parse_rtattr_nested(vf, IFLA_VF_STATS_MAX, vfstats);
553
554 if (is_json_context()) {
555 open_json_object("stats");
556
557 /* RX stats */
558 open_json_object("rx");
559 print_u64(PRINT_JSON, "bytes", NULL,
560 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
561 print_u64(PRINT_JSON, "packets", NULL,
562 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
563 print_u64(PRINT_JSON, "multicast", NULL,
564 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
565 print_u64(PRINT_JSON, "broadcast", NULL,
566 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
567 if (vf[IFLA_VF_STATS_RX_DROPPED])
568 print_u64(PRINT_JSON, "dropped", NULL,
569 rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
570 close_json_object();
571
572 /* TX stats */
573 open_json_object("tx");
574 print_u64(PRINT_JSON, "tx_bytes", NULL,
575 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
576 print_u64(PRINT_JSON, "tx_packets", NULL,
577 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
578 if (vf[IFLA_VF_STATS_TX_DROPPED])
579 print_u64(PRINT_JSON, "dropped", NULL,
580 rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
581 close_json_object();
582 close_json_object();
583 } else {
584 /* RX stats */
585 fprintf(fp, "%s", _SL_);
586 fprintf(fp, " RX: bytes packets mcast bcast ");
587 if (vf[IFLA_VF_STATS_RX_DROPPED])
588 fprintf(fp, " dropped ");
589 fprintf(fp, "%s", _SL_);
590 fprintf(fp, " ");
591
592 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
593 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
594 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
595 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
596 if (vf[IFLA_VF_STATS_RX_DROPPED])
597 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
598
599 /* TX stats */
600 fprintf(fp, "%s", _SL_);
601 fprintf(fp, " TX: bytes packets ");
602 if (vf[IFLA_VF_STATS_TX_DROPPED])
603 fprintf(fp, " dropped ");
604 fprintf(fp, "%s", _SL_);
605 fprintf(fp, " ");
606
607 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
608 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
609 if (vf[IFLA_VF_STATS_TX_DROPPED])
610 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
611 }
612 }
613
614 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
615 {
616 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
617 struct rtnl_link_stats64 _s, *s = &_s;
618 int ret;
619
620 ret = get_rtnl_link_stats_rta(s, tb);
621 if (ret < 0)
622 return;
623
624 if (is_json_context()) {
625 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
626
627 /* RX stats */
628 open_json_object("rx");
629 print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes);
630 print_u64(PRINT_JSON, "packets", NULL, s->rx_packets);
631 print_u64(PRINT_JSON, "errors", NULL, s->rx_errors);
632 print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped);
633 print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
634 print_u64(PRINT_JSON, "multicast", NULL, s->multicast);
635 if (s->rx_compressed)
636 print_u64(PRINT_JSON,
637 "compressed", NULL, s->rx_compressed);
638
639 /* RX error stats */
640 if (show_stats > 1) {
641 print_u64(PRINT_JSON,
642 "length_errors",
643 NULL, s->rx_length_errors);
644 print_u64(PRINT_JSON,
645 "crc_errors",
646 NULL, s->rx_crc_errors);
647 print_u64(PRINT_JSON,
648 "frame_errors",
649 NULL, s->rx_frame_errors);
650 print_u64(PRINT_JSON,
651 "fifo_errors",
652 NULL, s->rx_fifo_errors);
653 print_u64(PRINT_JSON,
654 "missed_errors",
655 NULL, s->rx_missed_errors);
656 if (s->rx_nohandler)
657 print_u64(PRINT_JSON,
658 "nohandler", NULL, s->rx_nohandler);
659 }
660 close_json_object();
661
662 /* TX stats */
663 open_json_object("tx");
664 print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes);
665 print_u64(PRINT_JSON, "packets", NULL, s->tx_packets);
666 print_u64(PRINT_JSON, "errors", NULL, s->tx_errors);
667 print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped);
668 print_u64(PRINT_JSON,
669 "carrier_errors",
670 NULL, s->tx_carrier_errors);
671 print_u64(PRINT_JSON, "collisions", NULL, s->collisions);
672 if (s->tx_compressed)
673 print_u64(PRINT_JSON,
674 "compressed", NULL, s->tx_compressed);
675
676 /* TX error stats */
677 if (show_stats > 1) {
678 print_u64(PRINT_JSON,
679 "aborted_errors",
680 NULL, s->tx_aborted_errors);
681 print_u64(PRINT_JSON,
682 "fifo_errors",
683 NULL, s->tx_fifo_errors);
684 print_u64(PRINT_JSON,
685 "window_errors",
686 NULL, s->tx_window_errors);
687 print_u64(PRINT_JSON,
688 "heartbeat_errors",
689 NULL, s->tx_heartbeat_errors);
690 if (carrier_changes)
691 print_u64(PRINT_JSON, "carrier_changes", NULL,
692 rta_getattr_u32(carrier_changes));
693 }
694
695 close_json_object();
696 close_json_object();
697 } else {
698 /* RX stats */
699 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
700 s->rx_compressed ? "compressed" : "", _SL_);
701
702 fprintf(fp, " ");
703 print_num(fp, 10, s->rx_bytes);
704 print_num(fp, 8, s->rx_packets);
705 print_num(fp, 7, s->rx_errors);
706 print_num(fp, 7, s->rx_dropped);
707 print_num(fp, 7, s->rx_over_errors);
708 print_num(fp, 7, s->multicast);
709 if (s->rx_compressed)
710 print_num(fp, 7, s->rx_compressed);
711
712 /* RX error stats */
713 if (show_stats > 1) {
714 fprintf(fp, "%s", _SL_);
715 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
716 s->rx_nohandler ? " nohandler" : "", _SL_);
717 fprintf(fp, " ");
718 print_num(fp, 8, s->rx_length_errors);
719 print_num(fp, 7, s->rx_crc_errors);
720 print_num(fp, 7, s->rx_frame_errors);
721 print_num(fp, 7, s->rx_fifo_errors);
722 print_num(fp, 7, s->rx_missed_errors);
723 if (s->rx_nohandler)
724 print_num(fp, 7, s->rx_nohandler);
725 }
726 fprintf(fp, "%s", _SL_);
727
728 /* TX stats */
729 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
730 s->tx_compressed ? "compressed" : "", _SL_);
731
732 fprintf(fp, " ");
733 print_num(fp, 10, s->tx_bytes);
734 print_num(fp, 8, s->tx_packets);
735 print_num(fp, 7, s->tx_errors);
736 print_num(fp, 7, s->tx_dropped);
737 print_num(fp, 7, s->tx_carrier_errors);
738 print_num(fp, 7, s->collisions);
739 if (s->tx_compressed)
740 print_num(fp, 7, s->tx_compressed);
741
742 /* TX error stats */
743 if (show_stats > 1) {
744 fprintf(fp, "%s", _SL_);
745 fprintf(fp, " TX errors: aborted fifo window heartbeat");
746 if (carrier_changes)
747 fprintf(fp, " transns");
748 fprintf(fp, "%s", _SL_);
749
750 fprintf(fp, " ");
751 print_num(fp, 8, s->tx_aborted_errors);
752 print_num(fp, 7, s->tx_fifo_errors);
753 print_num(fp, 7, s->tx_window_errors);
754 print_num(fp, 7, s->tx_heartbeat_errors);
755 if (carrier_changes)
756 print_num(fp, 7,
757 rta_getattr_u32(carrier_changes));
758 }
759 }
760 }
761
762 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
763 {
764 struct ifinfomsg *ifi = NLMSG_DATA(n);
765 struct rtattr *tb[IFLA_MAX+1];
766
767 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
768 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
769 __print_link_stats(fp, tb);
770 print_nl();
771 }
772
773 static int print_linkinfo_brief(FILE *fp, const char *name,
774 const struct ifinfomsg *ifi,
775 struct rtattr *tb[])
776 {
777 unsigned int m_flag = 0;
778
779 m_flag = print_name_and_link("%-16s ", name, tb);
780
781 if (tb[IFLA_OPERSTATE])
782 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
783
784 if (filter.family == AF_PACKET) {
785 SPRINT_BUF(b1);
786
787 if (tb[IFLA_ADDRESS]) {
788 print_color_string(PRINT_ANY, COLOR_MAC,
789 "address", "%s ",
790 ll_addr_n2a(
791 RTA_DATA(tb[IFLA_ADDRESS]),
792 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
793 ifi->ifi_type,
794 b1, sizeof(b1)));
795 }
796 }
797
798 if (filter.family == AF_PACKET) {
799 print_link_flags(fp, ifi->ifi_flags, m_flag);
800 print_string(PRINT_FP, NULL, "%s", "\n");
801 }
802
803 fflush(fp);
804 return 0;
805 }
806
807 static const char *link_events[] = {
808 [IFLA_EVENT_NONE] = "NONE",
809 [IFLA_EVENT_REBOOT] = "REBOOT",
810 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
811 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
812 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
813 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
814 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
815 };
816
817 static void print_link_event(FILE *f, __u32 event)
818 {
819 if (event >= ARRAY_SIZE(link_events))
820 print_int(PRINT_ANY, "event", "event %d ", event);
821 else {
822 if (event)
823 print_string(PRINT_ANY,
824 "event", "event %s ",
825 link_events[event]);
826 }
827 }
828
829 int print_linkinfo(struct nlmsghdr *n, void *arg)
830 {
831 FILE *fp = (FILE *)arg;
832 struct ifinfomsg *ifi = NLMSG_DATA(n);
833 struct rtattr *tb[IFLA_MAX+1];
834 int len = n->nlmsg_len;
835 const char *name;
836 unsigned int m_flag = 0;
837 SPRINT_BUF(b1);
838
839 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
840 return 0;
841
842 len -= NLMSG_LENGTH(sizeof(*ifi));
843 if (len < 0)
844 return -1;
845
846 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
847 return -1;
848 if (filter.up && !(ifi->ifi_flags&IFF_UP))
849 return -1;
850
851 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
852
853 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
854 if (!name)
855 return -1;
856
857 if (filter.label)
858 return 0;
859
860 if (tb[IFLA_GROUP]) {
861 int group = rta_getattr_u32(tb[IFLA_GROUP]);
862
863 if (filter.group != -1 && group != filter.group)
864 return -1;
865 }
866
867 if (tb[IFLA_MASTER]) {
868 int master = rta_getattr_u32(tb[IFLA_MASTER]);
869
870 if (filter.master > 0 && master != filter.master)
871 return -1;
872 } else if (filter.master > 0)
873 return -1;
874
875 if (filter.kind && match_link_kind(tb, filter.kind, 0))
876 return -1;
877
878 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
879 return -1;
880
881 if (n->nlmsg_type == RTM_DELLINK)
882 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
883
884 if (brief)
885 return print_linkinfo_brief(fp, name, ifi, tb);
886
887 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
888
889 m_flag = print_name_and_link("%s: ", name, tb);
890 print_link_flags(fp, ifi->ifi_flags, m_flag);
891
892 if (tb[IFLA_MTU])
893 print_int(PRINT_ANY,
894 "mtu", "mtu %u ",
895 rta_getattr_u32(tb[IFLA_MTU]));
896 if (tb[IFLA_XDP])
897 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
898 if (tb[IFLA_QDISC])
899 print_string(PRINT_ANY,
900 "qdisc",
901 "qdisc %s ",
902 rta_getattr_str(tb[IFLA_QDISC]));
903 if (tb[IFLA_MASTER]) {
904 int master = rta_getattr_u32(tb[IFLA_MASTER]);
905
906 print_string(PRINT_ANY,
907 "master", "master %s ",
908 ll_index_to_name(master));
909 }
910
911 if (tb[IFLA_OPERSTATE])
912 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
913
914 if (do_link && tb[IFLA_LINKMODE])
915 print_linkmode(fp, tb[IFLA_LINKMODE]);
916
917 if (tb[IFLA_GROUP]) {
918 int group = rta_getattr_u32(tb[IFLA_GROUP]);
919
920 print_string(PRINT_ANY,
921 "group",
922 "group %s ",
923 rtnl_group_n2a(group, b1, sizeof(b1)));
924 }
925
926 if (filter.showqueue)
927 print_queuelen(fp, tb);
928
929 if (tb[IFLA_EVENT])
930 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
931
932 if (!filter.family || filter.family == AF_PACKET || show_details) {
933 print_nl();
934 print_string(PRINT_ANY,
935 "link_type",
936 " link/%s ",
937 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
938 if (tb[IFLA_ADDRESS]) {
939 print_color_string(PRINT_ANY,
940 COLOR_MAC,
941 "address",
942 "%s",
943 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
944 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
945 ifi->ifi_type,
946 b1, sizeof(b1)));
947 }
948 if (tb[IFLA_BROADCAST]) {
949 if (ifi->ifi_flags&IFF_POINTOPOINT) {
950 print_string(PRINT_FP, NULL, " peer ", NULL);
951 print_bool(PRINT_JSON,
952 "link_pointtopoint", NULL, true);
953 } else {
954 print_string(PRINT_FP, NULL, " brd ", NULL);
955 }
956 print_color_string(PRINT_ANY,
957 COLOR_MAC,
958 "broadcast",
959 "%s",
960 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
961 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
962 ifi->ifi_type,
963 b1, sizeof(b1)));
964 }
965 }
966
967 if (tb[IFLA_LINK_NETNSID]) {
968 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
969
970 if (is_json_context()) {
971 print_int(PRINT_JSON, "link_netnsid", NULL, id);
972 } else {
973 if (id >= 0) {
974 char *name = get_name_from_nsid(id);
975
976 if (name)
977 print_string(PRINT_FP, NULL,
978 " link-netns %s", name);
979 else
980 print_int(PRINT_FP, NULL,
981 " link-netnsid %d", id);
982 } else
983 print_string(PRINT_FP, NULL,
984 " link-netnsid %s", "unknown");
985 }
986 }
987
988 if (tb[IFLA_NEW_NETNSID]) {
989 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
990 char *name = get_name_from_nsid(id);
991
992 if (name)
993 print_string(PRINT_FP, NULL, " new-netns %s", name);
994 else
995 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
996 }
997 if (tb[IFLA_NEW_IFINDEX]) {
998 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
999
1000 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1001 }
1002
1003 if (tb[IFLA_PROTO_DOWN]) {
1004 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1005 print_bool(PRINT_ANY,
1006 "proto_down", " protodown on ", true);
1007 }
1008
1009 if (show_details) {
1010 if (tb[IFLA_PROMISCUITY])
1011 print_uint(PRINT_ANY,
1012 "promiscuity",
1013 " promiscuity %u ",
1014 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1015
1016 if (tb[IFLA_MIN_MTU])
1017 print_uint(PRINT_ANY,
1018 "min_mtu", "minmtu %u ",
1019 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1020
1021 if (tb[IFLA_MAX_MTU])
1022 print_uint(PRINT_ANY,
1023 "max_mtu", "maxmtu %u ",
1024 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1025
1026 if (tb[IFLA_LINKINFO])
1027 print_linktype(fp, tb[IFLA_LINKINFO]);
1028
1029 if (do_link && tb[IFLA_AF_SPEC])
1030 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1031
1032 if (tb[IFLA_NUM_TX_QUEUES])
1033 print_uint(PRINT_ANY,
1034 "num_tx_queues",
1035 "numtxqueues %u ",
1036 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1037
1038 if (tb[IFLA_NUM_RX_QUEUES])
1039 print_uint(PRINT_ANY,
1040 "num_rx_queues",
1041 "numrxqueues %u ",
1042 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1043
1044 if (tb[IFLA_GSO_MAX_SIZE])
1045 print_uint(PRINT_ANY,
1046 "gso_max_size",
1047 "gso_max_size %u ",
1048 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1049
1050 if (tb[IFLA_GSO_MAX_SEGS])
1051 print_uint(PRINT_ANY,
1052 "gso_max_segs",
1053 "gso_max_segs %u ",
1054 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1055
1056 if (tb[IFLA_PHYS_PORT_NAME])
1057 print_string(PRINT_ANY,
1058 "phys_port_name",
1059 "portname %s ",
1060 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1061
1062 if (tb[IFLA_PHYS_PORT_ID]) {
1063 print_string(PRINT_ANY,
1064 "phys_port_id",
1065 "portid %s ",
1066 hexstring_n2a(
1067 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1068 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1069 b1, sizeof(b1)));
1070 }
1071
1072 if (tb[IFLA_PHYS_SWITCH_ID]) {
1073 print_string(PRINT_ANY,
1074 "phys_switch_id",
1075 "switchid %s ",
1076 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1077 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1078 b1, sizeof(b1)));
1079 }
1080 }
1081
1082 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1083 print_string(PRINT_FP, NULL, "%s ", _SL_);
1084 print_string(PRINT_ANY,
1085 "ifalias",
1086 "alias %s",
1087 rta_getattr_str(tb[IFLA_IFALIAS]));
1088 }
1089
1090 if ((do_link || show_details) && tb[IFLA_XDP])
1091 xdp_dump(fp, tb[IFLA_XDP], true, true);
1092
1093 if (do_link && show_stats) {
1094 print_nl();
1095 __print_link_stats(fp, tb);
1096 }
1097
1098 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1099 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1100 int rem = RTA_PAYLOAD(vflist);
1101
1102 open_json_array(PRINT_JSON, "vfinfo_list");
1103 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1104 open_json_object(NULL);
1105 print_vfinfo(fp, i);
1106 close_json_object();
1107 }
1108 close_json_array(PRINT_JSON, NULL);
1109 }
1110
1111 print_string(PRINT_FP, NULL, "%s", "\n");
1112 fflush(fp);
1113 return 1;
1114 }
1115
1116 static int flush_update(void)
1117 {
1118
1119 /*
1120 * Note that the kernel may delete multiple addresses for one
1121 * delete request (e.g. if ipv4 address promotion is disabled).
1122 * Since a flush operation is really a series of delete requests
1123 * its possible that we may request an address delete that has
1124 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1125 * errors returned from a flush request
1126 */
1127 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1128 (errno != EADDRNOTAVAIL)) {
1129 perror("Failed to send flush request");
1130 return -1;
1131 }
1132 filter.flushp = 0;
1133 return 0;
1134 }
1135
1136 static int set_lifetime(unsigned int *lifetime, char *argv)
1137 {
1138 if (strcmp(argv, "forever") == 0)
1139 *lifetime = INFINITY_LIFE_TIME;
1140 else if (get_u32(lifetime, argv, 0))
1141 return -1;
1142
1143 return 0;
1144 }
1145
1146 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1147 struct rtattr *ifa_flags_attr)
1148 {
1149 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1150 ifa->ifa_flags;
1151 }
1152
1153 /* Mapping from argument to address flag mask */
1154 static const struct {
1155 const char *name;
1156 unsigned long value;
1157 } ifa_flag_names[] = {
1158 { "secondary", IFA_F_SECONDARY },
1159 { "temporary", IFA_F_SECONDARY },
1160 { "nodad", IFA_F_NODAD },
1161 { "optimistic", IFA_F_OPTIMISTIC },
1162 { "dadfailed", IFA_F_DADFAILED },
1163 { "home", IFA_F_HOMEADDRESS },
1164 { "deprecated", IFA_F_DEPRECATED },
1165 { "tentative", IFA_F_TENTATIVE },
1166 { "permanent", IFA_F_PERMANENT },
1167 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1168 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1169 { "autojoin", IFA_F_MCAUTOJOIN },
1170 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1171 };
1172
1173 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1174 unsigned int flags)
1175 {
1176 unsigned int i;
1177
1178 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1179 unsigned long mask = ifa_flag_names[i].value;
1180
1181 if (mask == IFA_F_PERMANENT) {
1182 if (!(flags & mask))
1183 print_bool(PRINT_ANY,
1184 "dynamic", "dynamic ", true);
1185 } else if (flags & mask) {
1186 if (mask == IFA_F_SECONDARY &&
1187 ifa->ifa_family == AF_INET6) {
1188 print_bool(PRINT_ANY,
1189 "temporary", "temporary ", true);
1190 } else {
1191 print_string(PRINT_FP, NULL,
1192 "%s ", ifa_flag_names[i].name);
1193 print_bool(PRINT_JSON,
1194 ifa_flag_names[i].name, NULL, true);
1195 }
1196 }
1197
1198 flags &= ~mask;
1199 }
1200
1201 if (flags) {
1202 if (is_json_context()) {
1203 SPRINT_BUF(b1);
1204
1205 snprintf(b1, sizeof(b1), "%02x", flags);
1206 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1207 } else {
1208 fprintf(fp, "flags %02x ", flags);
1209 }
1210 }
1211
1212 }
1213
1214 static int get_filter(const char *arg)
1215 {
1216 bool inv = false;
1217 unsigned int i;
1218
1219 if (arg[0] == '-') {
1220 inv = true;
1221 arg++;
1222 }
1223
1224 /* Special cases */
1225 if (strcmp(arg, "dynamic") == 0) {
1226 inv = !inv;
1227 arg = "permanent";
1228 } else if (strcmp(arg, "primary") == 0) {
1229 inv = !inv;
1230 arg = "secondary";
1231 }
1232
1233 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1234 if (strcmp(arg, ifa_flag_names[i].name))
1235 continue;
1236
1237 if (inv)
1238 filter.flags &= ~ifa_flag_names[i].value;
1239 else
1240 filter.flags |= ifa_flag_names[i].value;
1241 filter.flagmask |= ifa_flag_names[i].value;
1242 return 0;
1243 }
1244 return -1;
1245 }
1246
1247 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1248 {
1249 const char *label;
1250
1251 if (!filter.label)
1252 return 0;
1253
1254 if (rta)
1255 label = RTA_DATA(rta);
1256 else
1257 label = ll_index_to_name(ifindex);
1258
1259 return fnmatch(filter.label, label, 0);
1260 }
1261
1262 int print_addrinfo(struct nlmsghdr *n, void *arg)
1263 {
1264 FILE *fp = arg;
1265 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1266 int len = n->nlmsg_len;
1267 unsigned int ifa_flags;
1268 struct rtattr *rta_tb[IFA_MAX+1];
1269
1270 SPRINT_BUF(b1);
1271
1272 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1273 return 0;
1274 len -= NLMSG_LENGTH(sizeof(*ifa));
1275 if (len < 0) {
1276 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1277 return -1;
1278 }
1279
1280 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1281 return 0;
1282
1283 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1284 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1285
1286 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1287
1288 if (!rta_tb[IFA_LOCAL])
1289 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1290 if (!rta_tb[IFA_ADDRESS])
1291 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1292
1293 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1294 return 0;
1295 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1296 return 0;
1297 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1298 return 0;
1299
1300 if (filter.family && filter.family != ifa->ifa_family)
1301 return 0;
1302
1303 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1304 return 0;
1305
1306 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1307 return 0;
1308
1309 if (filter.flushb) {
1310 struct nlmsghdr *fn;
1311
1312 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1313 if (flush_update())
1314 return -1;
1315 }
1316 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1317 memcpy(fn, n, n->nlmsg_len);
1318 fn->nlmsg_type = RTM_DELADDR;
1319 fn->nlmsg_flags = NLM_F_REQUEST;
1320 fn->nlmsg_seq = ++rth.seq;
1321 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1322 filter.flushed++;
1323 if (show_stats < 2)
1324 return 0;
1325 }
1326
1327 if (n->nlmsg_type == RTM_DELADDR)
1328 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1329
1330 if (!brief) {
1331 const char *name;
1332
1333 if (filter.oneline || filter.flushb) {
1334 const char *dev = ll_index_to_name(ifa->ifa_index);
1335
1336 if (is_json_context()) {
1337 print_int(PRINT_JSON,
1338 "index", NULL, ifa->ifa_index);
1339 print_string(PRINT_JSON, "dev", NULL, dev);
1340 } else {
1341 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1342 }
1343 }
1344
1345 name = family_name(ifa->ifa_family);
1346 if (*name != '?') {
1347 print_string(PRINT_ANY, "family", " %s ", name);
1348 } else {
1349 print_int(PRINT_ANY, "family_index", " family %d ",
1350 ifa->ifa_family);
1351 }
1352 }
1353
1354 if (rta_tb[IFA_LOCAL]) {
1355 print_color_string(PRINT_ANY,
1356 ifa_family_color(ifa->ifa_family),
1357 "local", "%s",
1358 format_host_rta(ifa->ifa_family,
1359 rta_tb[IFA_LOCAL]));
1360 if (rta_tb[IFA_ADDRESS] &&
1361 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1362 RTA_DATA(rta_tb[IFA_LOCAL]),
1363 ifa->ifa_family == AF_INET ? 4 : 16)) {
1364 print_string(PRINT_FP, NULL, " %s ", "peer");
1365 print_color_string(PRINT_ANY,
1366 ifa_family_color(ifa->ifa_family),
1367 "address",
1368 "%s",
1369 format_host_rta(ifa->ifa_family,
1370 rta_tb[IFA_ADDRESS]));
1371 }
1372 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1373
1374 if (rta_tb[IFA_RT_PRIORITY])
1375 print_uint(PRINT_ANY, "metric", "metric %u ",
1376 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1377 }
1378
1379 if (brief)
1380 goto brief_exit;
1381
1382 if (rta_tb[IFA_BROADCAST]) {
1383 print_string(PRINT_FP, NULL, "%s ", "brd");
1384 print_color_string(PRINT_ANY,
1385 ifa_family_color(ifa->ifa_family),
1386 "broadcast",
1387 "%s ",
1388 format_host_rta(ifa->ifa_family,
1389 rta_tb[IFA_BROADCAST]));
1390 }
1391
1392 if (rta_tb[IFA_ANYCAST]) {
1393 print_string(PRINT_FP, NULL, "%s ", "any");
1394 print_color_string(PRINT_ANY,
1395 ifa_family_color(ifa->ifa_family),
1396 "anycast",
1397 "%s ",
1398 format_host_rta(ifa->ifa_family,
1399 rta_tb[IFA_ANYCAST]));
1400 }
1401
1402 print_string(PRINT_ANY,
1403 "scope",
1404 "scope %s ",
1405 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1406
1407 print_ifa_flags(fp, ifa, ifa_flags);
1408
1409 if (rta_tb[IFA_LABEL])
1410 print_string(PRINT_ANY,
1411 "label",
1412 "%s",
1413 rta_getattr_str(rta_tb[IFA_LABEL]));
1414
1415 if (rta_tb[IFA_CACHEINFO]) {
1416 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1417
1418 print_nl();
1419 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1420
1421 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1422 print_uint(PRINT_JSON,
1423 "valid_life_time",
1424 NULL, INFINITY_LIFE_TIME);
1425 print_string(PRINT_FP, NULL, "%s", "forever");
1426 } else {
1427 print_uint(PRINT_ANY,
1428 "valid_life_time", "%usec", ci->ifa_valid);
1429 }
1430
1431 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1432 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1433 print_uint(PRINT_JSON,
1434 "preferred_life_time",
1435 NULL, INFINITY_LIFE_TIME);
1436 print_string(PRINT_FP, NULL, "%s", "forever");
1437 } else {
1438 if (ifa_flags & IFA_F_DEPRECATED)
1439 print_int(PRINT_ANY,
1440 "preferred_life_time",
1441 "%dsec",
1442 ci->ifa_prefered);
1443 else
1444 print_uint(PRINT_ANY,
1445 "preferred_life_time",
1446 "%usec",
1447 ci->ifa_prefered);
1448 }
1449 }
1450 print_string(PRINT_FP, NULL, "%s", "\n");
1451 brief_exit:
1452 fflush(fp);
1453 return 0;
1454 }
1455
1456 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1457 struct nlmsg_list *ainfo, FILE *fp)
1458 {
1459 open_json_array(PRINT_JSON, "addr_info");
1460 for ( ; ainfo ; ainfo = ainfo->next) {
1461 struct nlmsghdr *n = &ainfo->h;
1462 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1463
1464 if (n->nlmsg_type != RTM_NEWADDR)
1465 continue;
1466
1467 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1468 return -1;
1469
1470 if (ifa->ifa_index != ifi->ifi_index ||
1471 (filter.family && filter.family != ifa->ifa_family))
1472 continue;
1473
1474 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1475 continue;
1476
1477 open_json_object(NULL);
1478 print_addrinfo(n, fp);
1479 close_json_object();
1480 }
1481 close_json_array(PRINT_JSON, NULL);
1482
1483 if (brief) {
1484 print_string(PRINT_FP, NULL, "%s", "\n");
1485 fflush(fp);
1486 }
1487 return 0;
1488 }
1489
1490
1491 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1492 {
1493 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1494 struct nlmsg_list *h;
1495
1496 h = malloc(n->nlmsg_len+sizeof(void *));
1497 if (h == NULL)
1498 return -1;
1499
1500 memcpy(&h->h, n, n->nlmsg_len);
1501 h->next = NULL;
1502
1503 if (lchain->tail)
1504 lchain->tail->next = h;
1505 else
1506 lchain->head = h;
1507 lchain->tail = h;
1508
1509 ll_remember_index(n, NULL);
1510 return 0;
1511 }
1512
1513 static __u32 ipadd_dump_magic = 0x47361222;
1514
1515 static int ipadd_save_prep(void)
1516 {
1517 int ret;
1518
1519 if (isatty(STDOUT_FILENO)) {
1520 fprintf(stderr, "Not sending a binary stream to stdout\n");
1521 return -1;
1522 }
1523
1524 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1525 if (ret != sizeof(ipadd_dump_magic)) {
1526 fprintf(stderr, "Can't write magic to dump file\n");
1527 return -1;
1528 }
1529
1530 return 0;
1531 }
1532
1533 static int ipadd_dump_check_magic(void)
1534 {
1535 int ret;
1536 __u32 magic = 0;
1537
1538 if (isatty(STDIN_FILENO)) {
1539 fprintf(stderr, "Can't restore address dump from a terminal\n");
1540 return -1;
1541 }
1542
1543 ret = fread(&magic, sizeof(magic), 1, stdin);
1544 if (magic != ipadd_dump_magic) {
1545 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1546 return -1;
1547 }
1548
1549 return 0;
1550 }
1551
1552 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1553 {
1554 int ret;
1555
1556 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1557 if ((ret > 0) && (ret != n->nlmsg_len)) {
1558 fprintf(stderr, "Short write while saving nlmsg\n");
1559 ret = -EIO;
1560 }
1561
1562 return ret == n->nlmsg_len ? 0 : ret;
1563 }
1564
1565 static int show_handler(struct rtnl_ctrl_data *ctrl,
1566 struct nlmsghdr *n, void *arg)
1567 {
1568 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1569
1570 open_json_object(NULL);
1571 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1572 print_addrinfo(n, stdout);
1573 close_json_object();
1574 return 0;
1575 }
1576
1577 static int ipaddr_showdump(void)
1578 {
1579 int err;
1580
1581 if (ipadd_dump_check_magic())
1582 exit(-1);
1583
1584 new_json_obj(json);
1585 open_json_object(NULL);
1586 open_json_array(PRINT_JSON, "addr_info");
1587
1588 err = rtnl_from_file(stdin, &show_handler, NULL);
1589
1590 close_json_array(PRINT_JSON, NULL);
1591 close_json_object();
1592 delete_json_obj();
1593
1594 exit(err);
1595 }
1596
1597 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1598 struct nlmsghdr *n, void *arg)
1599 {
1600 int ret;
1601
1602 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1603
1604 ll_init_map(&rth);
1605
1606 ret = rtnl_talk(&rth, n, NULL);
1607 if ((ret < 0) && (errno == EEXIST))
1608 ret = 0;
1609
1610 return ret;
1611 }
1612
1613 static int ipaddr_restore(void)
1614 {
1615 if (ipadd_dump_check_magic())
1616 exit(-1);
1617
1618 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1619 }
1620
1621 void free_nlmsg_chain(struct nlmsg_chain *info)
1622 {
1623 struct nlmsg_list *l, *n;
1624
1625 for (l = info->head; l; l = n) {
1626 n = l->next;
1627 free(l);
1628 }
1629 }
1630
1631 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1632 {
1633 struct nlmsg_list *l, **lp;
1634
1635 lp = &linfo->head;
1636 while ((l = *lp) != NULL) {
1637 int ok = 0;
1638 int missing_net_address = 1;
1639 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1640 struct nlmsg_list *a;
1641
1642 for (a = ainfo->head; a; a = a->next) {
1643 struct nlmsghdr *n = &a->h;
1644 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1645 struct rtattr *tb[IFA_MAX + 1];
1646 unsigned int ifa_flags;
1647
1648 if (ifa->ifa_index != ifi->ifi_index)
1649 continue;
1650 missing_net_address = 0;
1651 if (filter.family && filter.family != ifa->ifa_family)
1652 continue;
1653 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1654 continue;
1655
1656 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1657 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1658
1659 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1660 continue;
1661
1662 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1663 continue;
1664
1665 if (!tb[IFA_LOCAL])
1666 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1667 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1668 continue;
1669
1670 ok = 1;
1671 break;
1672 }
1673 if (missing_net_address &&
1674 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1675 ok = 1;
1676 if (!ok) {
1677 *lp = l->next;
1678 free(l);
1679 } else
1680 lp = &l->next;
1681 }
1682 }
1683
1684 static int ipaddr_dump_filter(struct nlmsghdr *nlh, int reqlen)
1685 {
1686 struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
1687
1688 ifa->ifa_index = filter.ifindex;
1689
1690 return 0;
1691 }
1692
1693 static int ipaddr_flush(void)
1694 {
1695 int round = 0;
1696 char flushb[4096-512];
1697
1698 filter.flushb = flushb;
1699 filter.flushp = 0;
1700 filter.flushe = sizeof(flushb);
1701
1702 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1703 if (rtnl_addrdump_req(&rth, filter.family,
1704 ipaddr_dump_filter) < 0) {
1705 perror("Cannot send dump request");
1706 exit(1);
1707 }
1708 filter.flushed = 0;
1709 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1710 stdout, NLM_F_DUMP_INTR) < 0) {
1711 fprintf(stderr, "Flush terminated\n");
1712 exit(1);
1713 }
1714 if (filter.flushed == 0) {
1715 flush_done:
1716 if (show_stats) {
1717 if (round == 0)
1718 printf("Nothing to flush.\n");
1719 else
1720 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1721 }
1722 fflush(stdout);
1723 return 0;
1724 }
1725 round++;
1726 if (flush_update() < 0)
1727 return 1;
1728
1729 if (show_stats) {
1730 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1731 fflush(stdout);
1732 }
1733
1734 /* If we are flushing, and specifying primary, then we
1735 * want to flush only a single round. Otherwise, we'll
1736 * start flushing secondaries that were promoted to
1737 * primaries.
1738 */
1739 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1740 goto flush_done;
1741 }
1742 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1743 fflush(stderr);
1744 return 1;
1745 }
1746
1747 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1748 {
1749 int err;
1750
1751 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1752 if (err)
1753 return err;
1754
1755 if (filter.master) {
1756 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1757 if (err)
1758 return err;
1759 }
1760
1761 if (filter.kind) {
1762 struct rtattr *linkinfo;
1763
1764 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1765
1766 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1767 strlen(filter.kind));
1768 if (err)
1769 return err;
1770
1771 addattr_nest_end(nlh, linkinfo);
1772 }
1773
1774 return 0;
1775 }
1776
1777 static int ipaddr_link_get(int index, struct nlmsg_chain *linfo)
1778 {
1779 struct iplink_req req = {
1780 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
1781 .n.nlmsg_flags = NLM_F_REQUEST,
1782 .n.nlmsg_type = RTM_GETLINK,
1783 .i.ifi_family = filter.family,
1784 .i.ifi_index = index,
1785 };
1786 __u32 filt_mask = RTEXT_FILTER_VF;
1787 struct nlmsghdr *answer;
1788
1789 if (!show_stats)
1790 filt_mask |= RTEXT_FILTER_SKIP_STATS;
1791
1792 addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
1793
1794 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
1795 perror("Cannot send link request");
1796 return 1;
1797 }
1798
1799 if (store_nlmsg(answer, linfo) < 0) {
1800 fprintf(stderr, "Failed to process link information\n");
1801 return 1;
1802 }
1803
1804 return 0;
1805 }
1806
1807 /* fills in linfo with link data and optionally ainfo with address info
1808 * caller can walk lists as desired and must call free_nlmsg_chain for
1809 * both when done
1810 */
1811 int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo)
1812 {
1813 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1814 filter_fn) < 0) {
1815 perror("Cannot send dump request");
1816 return 1;
1817 }
1818
1819 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1820 fprintf(stderr, "Dump terminated\n");
1821 return 1;
1822 }
1823
1824 return 0;
1825 }
1826
1827 static int ip_addr_list(struct nlmsg_chain *ainfo)
1828 {
1829 if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) {
1830 perror("Cannot send dump request");
1831 return 1;
1832 }
1833
1834 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1835 fprintf(stderr, "Dump terminated\n");
1836 return 1;
1837 }
1838
1839 return 0;
1840 }
1841
1842 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1843 {
1844 struct nlmsg_chain linfo = { NULL, NULL};
1845 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = &_ainfo;
1846 struct nlmsg_list *l;
1847 char *filter_dev = NULL;
1848 int no_link = 0;
1849
1850 ipaddr_reset_filter(oneline, 0);
1851 filter.showqueue = 1;
1852 filter.family = preferred_family;
1853
1854 if (action == IPADD_FLUSH) {
1855 if (argc <= 0) {
1856 fprintf(stderr, "Flush requires arguments.\n");
1857
1858 return -1;
1859 }
1860 if (filter.family == AF_PACKET) {
1861 fprintf(stderr, "Cannot flush link addresses.\n");
1862 return -1;
1863 }
1864 }
1865
1866 while (argc > 0) {
1867 if (strcmp(*argv, "to") == 0) {
1868 NEXT_ARG();
1869 if (get_prefix(&filter.pfx, *argv, filter.family))
1870 invarg("invalid \"to\"\n", *argv);
1871 if (filter.family == AF_UNSPEC)
1872 filter.family = filter.pfx.family;
1873 } else if (strcmp(*argv, "scope") == 0) {
1874 unsigned int scope = 0;
1875
1876 NEXT_ARG();
1877 filter.scopemask = -1;
1878 if (rtnl_rtscope_a2n(&scope, *argv)) {
1879 if (strcmp(*argv, "all") != 0)
1880 invarg("invalid \"scope\"\n", *argv);
1881 scope = RT_SCOPE_NOWHERE;
1882 filter.scopemask = 0;
1883 }
1884 filter.scope = scope;
1885 } else if (strcmp(*argv, "up") == 0) {
1886 filter.up = 1;
1887 } else if (get_filter(*argv) == 0) {
1888
1889 } else if (strcmp(*argv, "label") == 0) {
1890 NEXT_ARG();
1891 filter.label = *argv;
1892 } else if (strcmp(*argv, "group") == 0) {
1893 NEXT_ARG();
1894 if (rtnl_group_a2n(&filter.group, *argv))
1895 invarg("Invalid \"group\" value\n", *argv);
1896 } else if (strcmp(*argv, "master") == 0) {
1897 int ifindex;
1898
1899 NEXT_ARG();
1900 ifindex = ll_name_to_index(*argv);
1901 if (!ifindex)
1902 invarg("Device does not exist\n", *argv);
1903 filter.master = ifindex;
1904 } else if (strcmp(*argv, "vrf") == 0) {
1905 int ifindex;
1906
1907 NEXT_ARG();
1908 ifindex = ll_name_to_index(*argv);
1909 if (!ifindex)
1910 invarg("Not a valid VRF name\n", *argv);
1911 if (!name_is_vrf(*argv))
1912 invarg("Not a valid VRF name\n", *argv);
1913 filter.master = ifindex;
1914 } else if (strcmp(*argv, "type") == 0) {
1915 int soff;
1916
1917 NEXT_ARG();
1918 soff = strlen(*argv) - strlen("_slave");
1919 if (!strcmp(*argv + soff, "_slave")) {
1920 (*argv)[soff] = '\0';
1921 filter.slave_kind = *argv;
1922 } else {
1923 filter.kind = *argv;
1924 }
1925 } else {
1926 if (strcmp(*argv, "dev") == 0)
1927 NEXT_ARG();
1928 else if (matches(*argv, "help") == 0)
1929 usage();
1930 if (filter_dev)
1931 duparg2("dev", *argv);
1932 filter_dev = *argv;
1933 }
1934 argv++; argc--;
1935 }
1936
1937 if (filter_dev) {
1938 filter.ifindex = ll_name_to_index(filter_dev);
1939 if (filter.ifindex <= 0) {
1940 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1941 return -1;
1942 }
1943 }
1944
1945 if (action == IPADD_FLUSH)
1946 return ipaddr_flush();
1947
1948 if (action == IPADD_SAVE) {
1949 if (ipadd_save_prep())
1950 exit(1);
1951
1952 if (rtnl_addrdump_req(&rth, preferred_family,
1953 ipaddr_dump_filter) < 0) {
1954 perror("Cannot send dump request");
1955 exit(1);
1956 }
1957
1958 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1959 fprintf(stderr, "Save terminated\n");
1960 exit(1);
1961 }
1962
1963 exit(0);
1964 }
1965
1966 /*
1967 * Initialize a json_writer and open an array object
1968 * if -json was specified.
1969 */
1970 new_json_obj(json);
1971
1972 /*
1973 * If only filter_dev present and none of the other
1974 * link filters are present, use RTM_GETLINK to get
1975 * the link device
1976 */
1977 if (filter_dev && filter.group == -1 && do_link == 1) {
1978 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
1979 perror("Cannot send link get request");
1980 delete_json_obj();
1981 exit(1);
1982 }
1983 delete_json_obj();
1984 goto out;
1985 }
1986
1987 if (filter.ifindex) {
1988 if (ipaddr_link_get(filter.ifindex, &linfo) != 0)
1989 goto out;
1990 } else {
1991 if (ip_link_list(iplink_filter_req, &linfo) != 0)
1992 goto out;
1993 }
1994
1995 if (filter.family != AF_PACKET) {
1996 if (filter.oneline)
1997 no_link = 1;
1998
1999 if (ip_addr_list(ainfo) != 0)
2000 goto out;
2001
2002 ipaddr_filter(&linfo, ainfo);
2003 }
2004
2005 for (l = linfo.head; l; l = l->next) {
2006 struct nlmsghdr *n = &l->h;
2007 struct ifinfomsg *ifi = NLMSG_DATA(n);
2008 int res = 0;
2009
2010 open_json_object(NULL);
2011 if (brief || !no_link)
2012 res = print_linkinfo(n, stdout);
2013 if (res >= 0 && filter.family != AF_PACKET)
2014 print_selected_addrinfo(ifi, ainfo->head, stdout);
2015 if (res > 0 && !do_link && show_stats)
2016 print_link_stats(stdout, n);
2017 close_json_object();
2018 }
2019 fflush(stdout);
2020
2021 out:
2022 free_nlmsg_chain(ainfo);
2023 free_nlmsg_chain(&linfo);
2024 delete_json_obj();
2025 return 0;
2026 }
2027
2028 static void
2029 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2030 {
2031 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2032 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2033 struct ifla_vf_rate *vf_rate;
2034 int rem;
2035
2036 rem = RTA_PAYLOAD(vflist);
2037
2038 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2039 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2040
2041 if (!vf[IFLA_VF_RATE]) {
2042 fprintf(stderr, "VF min/max rate API not supported\n");
2043 exit(1);
2044 }
2045
2046 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2047 if (vf_rate->vf == vfnum) {
2048 *min = vf_rate->min_tx_rate;
2049 *max = vf_rate->max_tx_rate;
2050 return;
2051 }
2052 }
2053 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2054 exit(1);
2055 }
2056
2057 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2058 {
2059 struct nlmsg_chain linfo = { NULL, NULL};
2060 struct rtattr *tb[IFLA_MAX+1];
2061 struct ifinfomsg *ifi;
2062 struct nlmsg_list *l;
2063 struct nlmsghdr *n;
2064 int idx, len;
2065
2066 idx = ll_name_to_index(dev);
2067 if (idx == 0) {
2068 fprintf(stderr, "Device %s does not exist\n", dev);
2069 exit(1);
2070 }
2071
2072 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2073 perror("Cannot send dump request");
2074 exit(1);
2075 }
2076 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2077 fprintf(stderr, "Dump terminated\n");
2078 exit(1);
2079 }
2080 for (l = linfo.head; l; l = l->next) {
2081 n = &l->h;
2082 ifi = NLMSG_DATA(n);
2083
2084 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2085 if (len < 0 || (idx && idx != ifi->ifi_index))
2086 continue;
2087
2088 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2089
2090 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2091 ipaddr_loop_each_vf(tb, vfnum, min, max);
2092 return;
2093 }
2094 }
2095 }
2096
2097 int ipaddr_list_link(int argc, char **argv)
2098 {
2099 preferred_family = AF_PACKET;
2100 do_link = 1;
2101 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2102 }
2103
2104 void ipaddr_reset_filter(int oneline, int ifindex)
2105 {
2106 memset(&filter, 0, sizeof(filter));
2107 filter.oneline = oneline;
2108 filter.ifindex = ifindex;
2109 filter.group = -1;
2110 }
2111
2112 static int default_scope(inet_prefix *lcl)
2113 {
2114 if (lcl->family == AF_INET) {
2115 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2116 return RT_SCOPE_HOST;
2117 }
2118 return 0;
2119 }
2120
2121 static bool ipaddr_is_multicast(inet_prefix *a)
2122 {
2123 if (a->family == AF_INET)
2124 return IN_MULTICAST(ntohl(a->data[0]));
2125 else if (a->family == AF_INET6)
2126 return IN6_IS_ADDR_MULTICAST(a->data);
2127 else
2128 return false;
2129 }
2130
2131 static bool is_valid_label(const char *dev, const char *label)
2132 {
2133 size_t len = strlen(dev);
2134
2135 if (strncmp(label, dev, len) != 0)
2136 return false;
2137
2138 return label[len] == '\0' || label[len] == ':';
2139 }
2140
2141 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2142 {
2143 struct {
2144 struct nlmsghdr n;
2145 struct ifaddrmsg ifa;
2146 char buf[256];
2147 } req = {
2148 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2149 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2150 .n.nlmsg_type = cmd,
2151 .ifa.ifa_family = preferred_family,
2152 };
2153 char *d = NULL;
2154 char *l = NULL;
2155 char *lcl_arg = NULL;
2156 char *valid_lftp = NULL;
2157 char *preferred_lftp = NULL;
2158 inet_prefix lcl = {};
2159 inet_prefix peer;
2160 int local_len = 0;
2161 int peer_len = 0;
2162 int brd_len = 0;
2163 int any_len = 0;
2164 int scoped = 0;
2165 __u32 preferred_lft = INFINITY_LIFE_TIME;
2166 __u32 valid_lft = INFINITY_LIFE_TIME;
2167 unsigned int ifa_flags = 0;
2168
2169 while (argc > 0) {
2170 if (strcmp(*argv, "peer") == 0 ||
2171 strcmp(*argv, "remote") == 0) {
2172 NEXT_ARG();
2173
2174 if (peer_len)
2175 duparg("peer", *argv);
2176 get_prefix(&peer, *argv, req.ifa.ifa_family);
2177 peer_len = peer.bytelen;
2178 if (req.ifa.ifa_family == AF_UNSPEC)
2179 req.ifa.ifa_family = peer.family;
2180 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2181 req.ifa.ifa_prefixlen = peer.bitlen;
2182 } else if (matches(*argv, "broadcast") == 0 ||
2183 strcmp(*argv, "brd") == 0) {
2184 inet_prefix addr;
2185
2186 NEXT_ARG();
2187 if (brd_len)
2188 duparg("broadcast", *argv);
2189 if (strcmp(*argv, "+") == 0)
2190 brd_len = -1;
2191 else if (strcmp(*argv, "-") == 0)
2192 brd_len = -2;
2193 else {
2194 get_addr(&addr, *argv, req.ifa.ifa_family);
2195 if (req.ifa.ifa_family == AF_UNSPEC)
2196 req.ifa.ifa_family = addr.family;
2197 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2198 brd_len = addr.bytelen;
2199 }
2200 } else if (strcmp(*argv, "anycast") == 0) {
2201 inet_prefix addr;
2202
2203 NEXT_ARG();
2204 if (any_len)
2205 duparg("anycast", *argv);
2206 get_addr(&addr, *argv, req.ifa.ifa_family);
2207 if (req.ifa.ifa_family == AF_UNSPEC)
2208 req.ifa.ifa_family = addr.family;
2209 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2210 any_len = addr.bytelen;
2211 } else if (strcmp(*argv, "scope") == 0) {
2212 unsigned int scope = 0;
2213
2214 NEXT_ARG();
2215 if (rtnl_rtscope_a2n(&scope, *argv))
2216 invarg("invalid scope value.", *argv);
2217 req.ifa.ifa_scope = scope;
2218 scoped = 1;
2219 } else if (strcmp(*argv, "dev") == 0) {
2220 NEXT_ARG();
2221 d = *argv;
2222 } else if (strcmp(*argv, "label") == 0) {
2223 NEXT_ARG();
2224 l = *argv;
2225 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2226 } else if (matches(*argv, "metric") == 0 ||
2227 matches(*argv, "priority") == 0 ||
2228 matches(*argv, "preference") == 0) {
2229 __u32 metric;
2230
2231 NEXT_ARG();
2232 if (get_u32(&metric, *argv, 0))
2233 invarg("\"metric\" value is invalid\n", *argv);
2234 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2235 } else if (matches(*argv, "valid_lft") == 0) {
2236 if (valid_lftp)
2237 duparg("valid_lft", *argv);
2238 NEXT_ARG();
2239 valid_lftp = *argv;
2240 if (set_lifetime(&valid_lft, *argv))
2241 invarg("valid_lft value", *argv);
2242 } else if (matches(*argv, "preferred_lft") == 0) {
2243 if (preferred_lftp)
2244 duparg("preferred_lft", *argv);
2245 NEXT_ARG();
2246 preferred_lftp = *argv;
2247 if (set_lifetime(&preferred_lft, *argv))
2248 invarg("preferred_lft value", *argv);
2249 } else if (strcmp(*argv, "home") == 0) {
2250 if (req.ifa.ifa_family == AF_INET6)
2251 ifa_flags |= IFA_F_HOMEADDRESS;
2252 else
2253 fprintf(stderr, "Warning: home option can be set only for IPv6 addresses\n");
2254 } else if (strcmp(*argv, "nodad") == 0) {
2255 if (req.ifa.ifa_family == AF_INET6)
2256 ifa_flags |= IFA_F_NODAD;
2257 else
2258 fprintf(stderr, "Warning: nodad option can be set only for IPv6 addresses\n");
2259 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2260 if (req.ifa.ifa_family == AF_INET6)
2261 ifa_flags |= IFA_F_MANAGETEMPADDR;
2262 else
2263 fprintf(stderr, "Warning: mngtmpaddr option can be set only for IPv6 addresses\n");
2264 } else if (strcmp(*argv, "noprefixroute") == 0) {
2265 ifa_flags |= IFA_F_NOPREFIXROUTE;
2266 } else if (strcmp(*argv, "autojoin") == 0) {
2267 ifa_flags |= IFA_F_MCAUTOJOIN;
2268 } else {
2269 if (strcmp(*argv, "local") == 0)
2270 NEXT_ARG();
2271 if (matches(*argv, "help") == 0)
2272 usage();
2273 if (local_len)
2274 duparg2("local", *argv);
2275 lcl_arg = *argv;
2276 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2277 if (req.ifa.ifa_family == AF_UNSPEC)
2278 req.ifa.ifa_family = lcl.family;
2279 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2280 local_len = lcl.bytelen;
2281 }
2282 argc--; argv++;
2283 }
2284 if (ifa_flags <= 0xff)
2285 req.ifa.ifa_flags = ifa_flags;
2286 else
2287 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2288
2289 if (d == NULL) {
2290 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2291 return -1;
2292 }
2293 if (l && !is_valid_label(d, l)) {
2294 fprintf(stderr,
2295 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2296 l, d);
2297 return -1;
2298 }
2299
2300 if (peer_len == 0 && local_len) {
2301 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2302 fprintf(stderr,
2303 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2304 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2305 " This special behaviour is likely to disappear in further releases,\n"
2306 " fix your scripts!\n", lcl_arg, local_len*8);
2307 } else {
2308 peer = lcl;
2309 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2310 }
2311 }
2312 if (req.ifa.ifa_prefixlen == 0)
2313 req.ifa.ifa_prefixlen = lcl.bitlen;
2314
2315 if (brd_len < 0 && cmd != RTM_DELADDR) {
2316 inet_prefix brd;
2317 int i;
2318
2319 if (req.ifa.ifa_family != AF_INET) {
2320 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2321 return -1;
2322 }
2323 brd = peer;
2324 if (brd.bitlen <= 30) {
2325 for (i = 31; i >= brd.bitlen; i--) {
2326 if (brd_len == -1)
2327 brd.data[0] |= htonl(1<<(31-i));
2328 else
2329 brd.data[0] &= ~htonl(1<<(31-i));
2330 }
2331 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2332 brd_len = brd.bytelen;
2333 }
2334 }
2335 if (!scoped && cmd != RTM_DELADDR)
2336 req.ifa.ifa_scope = default_scope(&lcl);
2337
2338 req.ifa.ifa_index = ll_name_to_index(d);
2339 if (!req.ifa.ifa_index)
2340 return nodev(d);
2341
2342 if (valid_lftp || preferred_lftp) {
2343 struct ifa_cacheinfo cinfo = {};
2344
2345 if (!valid_lft) {
2346 fprintf(stderr, "valid_lft is zero\n");
2347 return -1;
2348 }
2349 if (valid_lft < preferred_lft) {
2350 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2351 return -1;
2352 }
2353
2354 cinfo.ifa_prefered = preferred_lft;
2355 cinfo.ifa_valid = valid_lft;
2356 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2357 sizeof(cinfo));
2358 }
2359
2360 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2361 fprintf(stderr, "autojoin needs multicast address\n");
2362 return -1;
2363 }
2364
2365 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2366 return -2;
2367
2368 return 0;
2369 }
2370
2371 int do_ipaddr(int argc, char **argv)
2372 {
2373 if (argc < 1)
2374 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2375 if (matches(*argv, "add") == 0)
2376 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2377 if (matches(*argv, "change") == 0 ||
2378 strcmp(*argv, "chg") == 0)
2379 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2380 if (matches(*argv, "replace") == 0)
2381 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2382 if (matches(*argv, "delete") == 0)
2383 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2384 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2385 || matches(*argv, "lst") == 0)
2386 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2387 if (matches(*argv, "flush") == 0)
2388 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2389 if (matches(*argv, "save") == 0)
2390 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2391 if (matches(*argv, "showdump") == 0)
2392 return ipaddr_showdump();
2393 if (matches(*argv, "restore") == 0)
2394 return ipaddr_restore();
2395 if (matches(*argv, "help") == 0)
2396 usage();
2397 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2398 exit(-1);
2399 }
Upstream mirror of iproute2