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[mirror_iproute2.git] / ip / ipaddress.c
1 /*
2 * ipaddress.c "ip address".
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 *
11 */
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include <inttypes.h>
17 #include <fcntl.h>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/param.h>
21 #include <errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
24 #include <string.h>
25 #include <fnmatch.h>
26
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/if_infiniband.h>
30 #include <linux/sockios.h>
31 #include <linux/net_namespace.h>
32
33 #include "utils.h"
34 #include "rt_names.h"
35 #include "utils.h"
36 #include "ll_map.h"
37 #include "ip_common.h"
38 #include "color.h"
39
40 enum {
41 IPADD_LIST,
42 IPADD_FLUSH,
43 IPADD_SAVE,
44 };
45
46 static struct link_filter filter;
47 static int do_link;
48
49 static void usage(void) __attribute__((noreturn));
50
51 static void usage(void)
52 {
53 if (do_link)
54 iplink_usage();
55
56 fprintf(stderr,
57 "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n"
58 " [ CONFFLAG-LIST ]\n"
59 " ip address del IFADDR dev IFNAME [mngtmpaddr]\n"
60 " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n"
61 " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n"
62 " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n"
63 " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n"
64 " [ label LABEL ] [up] [ vrf NAME ] ]\n"
65 " ip address {showdump|restore}\n"
66 "IFADDR := PREFIX | ADDR peer PREFIX\n"
67 " [ broadcast ADDR ] [ anycast ADDR ]\n"
68 " [ label IFNAME ] [ scope SCOPE-ID ] [ metric METRIC ]\n"
69 "SCOPE-ID := [ host | link | global | NUMBER ]\n"
70 "FLAG-LIST := [ FLAG-LIST ] FLAG\n"
71 "FLAG := [ permanent | dynamic | secondary | primary |\n"
72 " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n"
73 " CONFFLAG-LIST ]\n"
74 "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n"
75 "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n"
76 "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n"
77 "LFT := forever | SECONDS\n"
78 "TYPE := { vlan | veth | vcan | vxcan | dummy | ifb | macvlan | macvtap |\n"
79 " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | lowpan |\n"
80 " gre | gretap | erspan | ip6gre | ip6gretap | ip6erspan | vti |\n"
81 " nlmon | can | bond_slave | ipvlan | geneve | bridge_slave |\n"
82 " hsr | macsec | netdevsim }\n");
83
84 exit(-1);
85 }
86
87 static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown)
88 {
89 open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
90 if (flags & IFF_UP && !(flags & IFF_RUNNING))
91 print_string(PRINT_ANY, NULL,
92 flags ? "%s," : "%s", "NO-CARRIER");
93 flags &= ~IFF_RUNNING;
94 #define _PF(f) if (flags&IFF_##f) { \
95 flags &= ~IFF_##f ; \
96 print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); }
97 _PF(LOOPBACK);
98 _PF(BROADCAST);
99 _PF(POINTOPOINT);
100 _PF(MULTICAST);
101 _PF(NOARP);
102 _PF(ALLMULTI);
103 _PF(PROMISC);
104 _PF(MASTER);
105 _PF(SLAVE);
106 _PF(DEBUG);
107 _PF(DYNAMIC);
108 _PF(AUTOMEDIA);
109 _PF(PORTSEL);
110 _PF(NOTRAILERS);
111 _PF(UP);
112 _PF(LOWER_UP);
113 _PF(DORMANT);
114 _PF(ECHO);
115 #undef _PF
116 if (flags)
117 print_hex(PRINT_ANY, NULL, "%x", flags);
118 if (mdown)
119 print_string(PRINT_ANY, NULL, ",%s", "M-DOWN");
120 close_json_array(PRINT_ANY, "> ");
121 }
122
123 static const char *oper_states[] = {
124 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
125 "TESTING", "DORMANT", "UP"
126 };
127
128 static void print_operstate(FILE *f, __u8 state)
129 {
130 if (state >= ARRAY_SIZE(oper_states)) {
131 if (is_json_context())
132 print_uint(PRINT_JSON, "operstate_index", NULL, state);
133 else
134 print_0xhex(PRINT_FP, NULL, "state %#llx", state);
135 } else if (brief) {
136 print_color_string(PRINT_ANY,
137 oper_state_color(state),
138 "operstate",
139 "%-14s ",
140 oper_states[state]);
141 } else {
142 if (is_json_context())
143 print_string(PRINT_JSON,
144 "operstate",
145 NULL, oper_states[state]);
146 else {
147 fprintf(f, "state ");
148 color_fprintf(f, oper_state_color(state),
149 "%s ", oper_states[state]);
150 }
151 }
152 }
153
154 int get_operstate(const char *name)
155 {
156 int i;
157
158 for (i = 0; i < ARRAY_SIZE(oper_states); i++)
159 if (strcasecmp(name, oper_states[i]) == 0)
160 return i;
161 return -1;
162 }
163
164 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
165 {
166 int qlen;
167
168 if (tb[IFLA_TXQLEN])
169 qlen = rta_getattr_u32(tb[IFLA_TXQLEN]);
170 else {
171 struct ifreq ifr = {};
172 int s = socket(AF_INET, SOCK_STREAM, 0);
173
174 if (s < 0)
175 return;
176
177 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
178 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
179 fprintf(stderr,
180 "ioctl(SIOCGIFTXQLEN) failed: %s\n",
181 strerror(errno));
182 close(s);
183 return;
184 }
185 close(s);
186 qlen = ifr.ifr_qlen;
187 }
188 if (qlen)
189 print_int(PRINT_ANY, "txqlen", "qlen %d", qlen);
190 }
191
192 static const char *link_modes[] = {
193 "DEFAULT", "DORMANT"
194 };
195
196 static void print_linkmode(FILE *f, struct rtattr *tb)
197 {
198 unsigned int mode = rta_getattr_u8(tb);
199
200 if (mode >= ARRAY_SIZE(link_modes))
201 print_int(PRINT_ANY,
202 "linkmode_index",
203 "mode %d ",
204 mode);
205 else
206 print_string(PRINT_ANY,
207 "linkmode",
208 "mode %s "
209 , link_modes[mode]);
210 }
211
212 static char *parse_link_kind(struct rtattr *tb, bool slave)
213 {
214 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
215 int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND;
216
217 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
218
219 if (linkinfo[attr])
220 return RTA_DATA(linkinfo[attr]);
221
222 return "";
223 }
224
225 static int match_link_kind(struct rtattr **tb, const char *kind, bool slave)
226 {
227 if (!tb[IFLA_LINKINFO])
228 return -1;
229
230 return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind);
231 }
232
233 static void print_linktype(FILE *fp, struct rtattr *tb)
234 {
235 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
236 struct link_util *lu;
237 struct link_util *slave_lu;
238 char slave[32];
239
240 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
241 open_json_object("linkinfo");
242
243 if (linkinfo[IFLA_INFO_KIND]) {
244 const char *kind
245 = rta_getattr_str(linkinfo[IFLA_INFO_KIND]);
246
247 print_nl();
248 print_string(PRINT_ANY, "info_kind", " %s ", kind);
249
250 lu = get_link_kind(kind);
251 if (lu && lu->print_opt) {
252 struct rtattr *attr[lu->maxattr+1], **data = NULL;
253
254 if (linkinfo[IFLA_INFO_DATA]) {
255 parse_rtattr_nested(attr, lu->maxattr,
256 linkinfo[IFLA_INFO_DATA]);
257 data = attr;
258 }
259 open_json_object("info_data");
260 lu->print_opt(lu, fp, data);
261 close_json_object();
262
263 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
264 lu->print_xstats) {
265 open_json_object("info_xstats");
266 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
267 close_json_object();
268 }
269 }
270 }
271
272 if (linkinfo[IFLA_INFO_SLAVE_KIND]) {
273 const char *slave_kind
274 = rta_getattr_str(linkinfo[IFLA_INFO_SLAVE_KIND]);
275
276 print_nl();
277 print_string(PRINT_ANY,
278 "info_slave_kind",
279 " %s_slave ",
280 slave_kind);
281
282 snprintf(slave, sizeof(slave), "%s_slave", slave_kind);
283
284 slave_lu = get_link_kind(slave);
285 if (slave_lu && slave_lu->print_opt) {
286 struct rtattr *attr[slave_lu->maxattr+1], **data = NULL;
287
288 if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
289 parse_rtattr_nested(attr, slave_lu->maxattr,
290 linkinfo[IFLA_INFO_SLAVE_DATA]);
291 data = attr;
292 }
293 open_json_object("info_slave_data");
294 slave_lu->print_opt(slave_lu, fp, data);
295 close_json_object();
296 }
297 }
298 close_json_object();
299 }
300
301 static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
302 {
303 struct rtattr *inet6_attr;
304 struct rtattr *tb[IFLA_INET6_MAX + 1];
305
306 inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
307 if (!inet6_attr)
308 return;
309
310 parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
311
312 if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
313 __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]);
314 SPRINT_BUF(b1);
315
316 switch (mode) {
317 case IN6_ADDR_GEN_MODE_EUI64:
318 print_string(PRINT_ANY,
319 "inet6_addr_gen_mode",
320 "addrgenmode %s ",
321 "eui64");
322 break;
323 case IN6_ADDR_GEN_MODE_NONE:
324 print_string(PRINT_ANY,
325 "inet6_addr_gen_mode",
326 "addrgenmode %s ",
327 "none");
328 break;
329 case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
330 print_string(PRINT_ANY,
331 "inet6_addr_gen_mode",
332 "addrgenmode %s ",
333 "stable_secret");
334 break;
335 case IN6_ADDR_GEN_MODE_RANDOM:
336 print_string(PRINT_ANY,
337 "inet6_addr_gen_mode",
338 "addrgenmode %s ",
339 "random");
340 break;
341 default:
342 snprintf(b1, sizeof(b1), "%#.2hhx", mode);
343 print_string(PRINT_ANY,
344 "inet6_addr_gen_mode",
345 "addrgenmode %s ",
346 b1);
347 break;
348 }
349 }
350 }
351
352 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats);
353
354 static void print_vfinfo(FILE *fp, struct ifinfomsg *ifi, struct rtattr *vfinfo)
355 {
356 struct ifla_vf_mac *vf_mac;
357 struct ifla_vf_broadcast *vf_broadcast;
358 struct ifla_vf_tx_rate *vf_tx_rate;
359 struct rtattr *vf[IFLA_VF_MAX + 1] = {};
360
361 SPRINT_BUF(b1);
362
363 if (vfinfo->rta_type != IFLA_VF_INFO) {
364 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
365 return;
366 }
367
368 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
369
370 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
371 vf_broadcast = RTA_DATA(vf[IFLA_VF_BROADCAST]);
372 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
373
374 print_string(PRINT_FP, NULL, "%s ", _SL_);
375 print_int(PRINT_ANY, "vf", "vf %d ", vf_mac->vf);
376
377 print_string(PRINT_ANY,
378 "link_type",
379 " link/%s ",
380 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
381
382 print_color_string(PRINT_ANY, COLOR_MAC,
383 "address", "%s",
384 ll_addr_n2a((unsigned char *) &vf_mac->mac,
385 ifi->ifi_type == ARPHRD_ETHER ?
386 ETH_ALEN : INFINIBAND_ALEN,
387 ifi->ifi_type,
388 b1, sizeof(b1)));
389
390 if (vf[IFLA_VF_BROADCAST]) {
391 if (ifi->ifi_flags&IFF_POINTOPOINT) {
392 print_string(PRINT_FP, NULL, " peer ", NULL);
393 print_bool(PRINT_JSON,
394 "link_pointtopoint", NULL, true);
395 } else
396 print_string(PRINT_FP, NULL, " brd ", NULL);
397
398 print_color_string(PRINT_ANY, COLOR_MAC,
399 "broadcast", "%s",
400 ll_addr_n2a((unsigned char *) &vf_broadcast->broadcast,
401 ifi->ifi_type == ARPHRD_ETHER ?
402 ETH_ALEN : INFINIBAND_ALEN,
403 ifi->ifi_type,
404 b1, sizeof(b1)));
405 }
406
407 if (vf[IFLA_VF_VLAN_LIST]) {
408 struct rtattr *i, *vfvlanlist = vf[IFLA_VF_VLAN_LIST];
409 int rem = RTA_PAYLOAD(vfvlanlist);
410
411 open_json_array(PRINT_JSON, "vlan_list");
412 for (i = RTA_DATA(vfvlanlist);
413 RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
414 struct ifla_vf_vlan_info *vf_vlan_info = RTA_DATA(i);
415 SPRINT_BUF(b2);
416
417 open_json_object(NULL);
418 if (vf_vlan_info->vlan)
419 print_int(PRINT_ANY,
420 "vlan",
421 ", vlan %d",
422 vf_vlan_info->vlan);
423 if (vf_vlan_info->qos)
424 print_int(PRINT_ANY,
425 "qos",
426 ", qos %d",
427 vf_vlan_info->qos);
428 if (vf_vlan_info->vlan_proto &&
429 vf_vlan_info->vlan_proto != htons(ETH_P_8021Q))
430 print_string(PRINT_ANY,
431 "protocol",
432 ", vlan protocol %s",
433 ll_proto_n2a(
434 vf_vlan_info->vlan_proto,
435 b2, sizeof(b2)));
436 close_json_object();
437 }
438 close_json_array(PRINT_JSON, NULL);
439 } else {
440 struct ifla_vf_vlan *vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
441
442 if (vf_vlan->vlan)
443 print_int(PRINT_ANY,
444 "vlan",
445 ", vlan %d",
446 vf_vlan->vlan);
447 if (vf_vlan->qos)
448 print_int(PRINT_ANY, "qos", ", qos %d", vf_vlan->qos);
449 }
450
451 if (vf_tx_rate->rate)
452 print_uint(PRINT_ANY,
453 "tx_rate",
454 ", tx rate %u (Mbps)",
455 vf_tx_rate->rate);
456
457 if (vf[IFLA_VF_RATE]) {
458 struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
459 int max_tx = vf_rate->max_tx_rate;
460 int min_tx = vf_rate->min_tx_rate;
461
462 if (is_json_context()) {
463 open_json_object("rate");
464 print_uint(PRINT_JSON, "max_tx", NULL, max_tx);
465 print_uint(PRINT_ANY, "min_tx", NULL, min_tx);
466 close_json_object();
467 } else {
468 if (max_tx)
469 fprintf(fp, ", max_tx_rate %uMbps", max_tx);
470 if (min_tx)
471 fprintf(fp, ", min_tx_rate %uMbps", min_tx);
472 }
473 }
474
475 if (vf[IFLA_VF_SPOOFCHK]) {
476 struct ifla_vf_spoofchk *vf_spoofchk =
477 RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
478
479 if (vf_spoofchk->setting != -1)
480 print_bool(PRINT_ANY,
481 "spoofchk",
482 vf_spoofchk->setting ?
483 ", spoof checking on" : ", spoof checking off",
484 vf_spoofchk->setting);
485 }
486
487 if (vf[IFLA_VF_LINK_STATE]) {
488 struct ifla_vf_link_state *vf_linkstate =
489 RTA_DATA(vf[IFLA_VF_LINK_STATE]);
490
491 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
492 print_string(PRINT_ANY,
493 "link_state",
494 ", link-state %s",
495 "auto");
496 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
497 print_string(PRINT_ANY,
498 "link_state",
499 ", link-state %s",
500 "enable");
501 else
502 print_string(PRINT_ANY,
503 "link_state",
504 ", link-state %s",
505 "disable");
506 }
507
508 if (vf[IFLA_VF_TRUST]) {
509 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
510
511 if (vf_trust->setting != -1)
512 print_bool(PRINT_ANY,
513 "trust",
514 vf_trust->setting ? ", trust on" : ", trust off",
515 vf_trust->setting);
516 }
517
518 if (vf[IFLA_VF_RSS_QUERY_EN]) {
519 struct ifla_vf_rss_query_en *rss_query =
520 RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]);
521
522 if (rss_query->setting != -1)
523 print_bool(PRINT_ANY,
524 "query_rss_en",
525 rss_query->setting ? ", query_rss on"
526 : ", query_rss off",
527 rss_query->setting);
528 }
529
530 if (vf[IFLA_VF_STATS] && show_stats)
531 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
532 }
533
534 void print_num(FILE *fp, unsigned int width, uint64_t count)
535 {
536 const char *prefix = "kMGTPE";
537 const unsigned int base = use_iec ? 1024 : 1000;
538 uint64_t powi = 1;
539 uint16_t powj = 1;
540 uint8_t precision = 2;
541 char buf[64];
542
543 if (!human_readable || count < base) {
544 fprintf(fp, "%-*"PRIu64" ", width, count);
545 return;
546 }
547
548 /* increase value by a factor of 1000/1024 and print
549 * if result is something a human can read
550 */
551 for (;;) {
552 powi *= base;
553 if (count / base < powi)
554 break;
555
556 if (!prefix[1])
557 break;
558 ++prefix;
559 }
560
561 /* try to guess a good number of digits for precision */
562 for (; precision > 0; precision--) {
563 powj *= 10;
564 if (count / powi < powj)
565 break;
566 }
567
568 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
569 (double) count / powi, *prefix, use_iec ? "i" : "");
570
571 fprintf(fp, "%-*s ", width, buf);
572 }
573
574 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
575 {
576 struct rtattr *vf[IFLA_VF_STATS_MAX + 1];
577
578 if (vfstats->rta_type != IFLA_VF_STATS) {
579 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
580 return;
581 }
582
583 parse_rtattr_nested(vf, IFLA_VF_STATS_MAX, vfstats);
584
585 if (is_json_context()) {
586 open_json_object("stats");
587
588 /* RX stats */
589 open_json_object("rx");
590 print_u64(PRINT_JSON, "bytes", NULL,
591 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
592 print_u64(PRINT_JSON, "packets", NULL,
593 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
594 print_u64(PRINT_JSON, "multicast", NULL,
595 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
596 print_u64(PRINT_JSON, "broadcast", NULL,
597 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
598 if (vf[IFLA_VF_STATS_RX_DROPPED])
599 print_u64(PRINT_JSON, "dropped", NULL,
600 rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
601 close_json_object();
602
603 /* TX stats */
604 open_json_object("tx");
605 print_u64(PRINT_JSON, "tx_bytes", NULL,
606 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
607 print_u64(PRINT_JSON, "tx_packets", NULL,
608 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
609 if (vf[IFLA_VF_STATS_TX_DROPPED])
610 print_u64(PRINT_JSON, "dropped", NULL,
611 rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
612 close_json_object();
613 close_json_object();
614 } else {
615 /* RX stats */
616 fprintf(fp, "%s", _SL_);
617 fprintf(fp, " RX: bytes packets mcast bcast ");
618 if (vf[IFLA_VF_STATS_RX_DROPPED])
619 fprintf(fp, " dropped ");
620 fprintf(fp, "%s", _SL_);
621 fprintf(fp, " ");
622
623 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
624 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
625 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
626 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
627 if (vf[IFLA_VF_STATS_RX_DROPPED])
628 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
629
630 /* TX stats */
631 fprintf(fp, "%s", _SL_);
632 fprintf(fp, " TX: bytes packets ");
633 if (vf[IFLA_VF_STATS_TX_DROPPED])
634 fprintf(fp, " dropped ");
635 fprintf(fp, "%s", _SL_);
636 fprintf(fp, " ");
637
638 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
639 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
640 if (vf[IFLA_VF_STATS_TX_DROPPED])
641 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
642 }
643 }
644
645 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
646 {
647 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
648 struct rtnl_link_stats64 _s, *s = &_s;
649 int ret;
650
651 ret = get_rtnl_link_stats_rta(s, tb);
652 if (ret < 0)
653 return;
654
655 if (is_json_context()) {
656 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
657
658 /* RX stats */
659 open_json_object("rx");
660 print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes);
661 print_u64(PRINT_JSON, "packets", NULL, s->rx_packets);
662 print_u64(PRINT_JSON, "errors", NULL, s->rx_errors);
663 print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped);
664 print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
665 print_u64(PRINT_JSON, "multicast", NULL, s->multicast);
666 if (s->rx_compressed)
667 print_u64(PRINT_JSON,
668 "compressed", NULL, s->rx_compressed);
669
670 /* RX error stats */
671 if (show_stats > 1) {
672 print_u64(PRINT_JSON,
673 "length_errors",
674 NULL, s->rx_length_errors);
675 print_u64(PRINT_JSON,
676 "crc_errors",
677 NULL, s->rx_crc_errors);
678 print_u64(PRINT_JSON,
679 "frame_errors",
680 NULL, s->rx_frame_errors);
681 print_u64(PRINT_JSON,
682 "fifo_errors",
683 NULL, s->rx_fifo_errors);
684 print_u64(PRINT_JSON,
685 "missed_errors",
686 NULL, s->rx_missed_errors);
687 if (s->rx_nohandler)
688 print_u64(PRINT_JSON,
689 "nohandler", NULL, s->rx_nohandler);
690 }
691 close_json_object();
692
693 /* TX stats */
694 open_json_object("tx");
695 print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes);
696 print_u64(PRINT_JSON, "packets", NULL, s->tx_packets);
697 print_u64(PRINT_JSON, "errors", NULL, s->tx_errors);
698 print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped);
699 print_u64(PRINT_JSON,
700 "carrier_errors",
701 NULL, s->tx_carrier_errors);
702 print_u64(PRINT_JSON, "collisions", NULL, s->collisions);
703 if (s->tx_compressed)
704 print_u64(PRINT_JSON,
705 "compressed", NULL, s->tx_compressed);
706
707 /* TX error stats */
708 if (show_stats > 1) {
709 print_u64(PRINT_JSON,
710 "aborted_errors",
711 NULL, s->tx_aborted_errors);
712 print_u64(PRINT_JSON,
713 "fifo_errors",
714 NULL, s->tx_fifo_errors);
715 print_u64(PRINT_JSON,
716 "window_errors",
717 NULL, s->tx_window_errors);
718 print_u64(PRINT_JSON,
719 "heartbeat_errors",
720 NULL, s->tx_heartbeat_errors);
721 if (carrier_changes)
722 print_u64(PRINT_JSON, "carrier_changes", NULL,
723 rta_getattr_u32(carrier_changes));
724 }
725
726 close_json_object();
727 close_json_object();
728 } else {
729 /* RX stats */
730 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
731 s->rx_compressed ? "compressed" : "", _SL_);
732
733 fprintf(fp, " ");
734 print_num(fp, 10, s->rx_bytes);
735 print_num(fp, 8, s->rx_packets);
736 print_num(fp, 7, s->rx_errors);
737 print_num(fp, 7, s->rx_dropped);
738 print_num(fp, 7, s->rx_over_errors);
739 print_num(fp, 7, s->multicast);
740 if (s->rx_compressed)
741 print_num(fp, 7, s->rx_compressed);
742
743 /* RX error stats */
744 if (show_stats > 1) {
745 fprintf(fp, "%s", _SL_);
746 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
747 s->rx_nohandler ? " nohandler" : "", _SL_);
748 fprintf(fp, " ");
749 print_num(fp, 8, s->rx_length_errors);
750 print_num(fp, 7, s->rx_crc_errors);
751 print_num(fp, 7, s->rx_frame_errors);
752 print_num(fp, 7, s->rx_fifo_errors);
753 print_num(fp, 7, s->rx_missed_errors);
754 if (s->rx_nohandler)
755 print_num(fp, 7, s->rx_nohandler);
756 }
757 fprintf(fp, "%s", _SL_);
758
759 /* TX stats */
760 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
761 s->tx_compressed ? "compressed" : "", _SL_);
762
763 fprintf(fp, " ");
764 print_num(fp, 10, s->tx_bytes);
765 print_num(fp, 8, s->tx_packets);
766 print_num(fp, 7, s->tx_errors);
767 print_num(fp, 7, s->tx_dropped);
768 print_num(fp, 7, s->tx_carrier_errors);
769 print_num(fp, 7, s->collisions);
770 if (s->tx_compressed)
771 print_num(fp, 7, s->tx_compressed);
772
773 /* TX error stats */
774 if (show_stats > 1) {
775 fprintf(fp, "%s", _SL_);
776 fprintf(fp, " TX errors: aborted fifo window heartbeat");
777 if (carrier_changes)
778 fprintf(fp, " transns");
779 fprintf(fp, "%s", _SL_);
780
781 fprintf(fp, " ");
782 print_num(fp, 8, s->tx_aborted_errors);
783 print_num(fp, 7, s->tx_fifo_errors);
784 print_num(fp, 7, s->tx_window_errors);
785 print_num(fp, 7, s->tx_heartbeat_errors);
786 if (carrier_changes)
787 print_num(fp, 7,
788 rta_getattr_u32(carrier_changes));
789 }
790 }
791 }
792
793 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
794 {
795 struct ifinfomsg *ifi = NLMSG_DATA(n);
796 struct rtattr *tb[IFLA_MAX+1];
797
798 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
799 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
800 __print_link_stats(fp, tb);
801 print_nl();
802 }
803
804 static int print_linkinfo_brief(FILE *fp, const char *name,
805 const struct ifinfomsg *ifi,
806 struct rtattr *tb[])
807 {
808 unsigned int m_flag = 0;
809
810 m_flag = print_name_and_link("%-16s ", name, tb);
811
812 if (tb[IFLA_OPERSTATE])
813 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
814
815 if (filter.family == AF_PACKET) {
816 SPRINT_BUF(b1);
817
818 if (tb[IFLA_ADDRESS]) {
819 print_color_string(PRINT_ANY, COLOR_MAC,
820 "address", "%s ",
821 ll_addr_n2a(
822 RTA_DATA(tb[IFLA_ADDRESS]),
823 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
824 ifi->ifi_type,
825 b1, sizeof(b1)));
826 }
827 }
828
829 if (filter.family == AF_PACKET) {
830 print_link_flags(fp, ifi->ifi_flags, m_flag);
831 print_string(PRINT_FP, NULL, "%s", "\n");
832 }
833
834 fflush(fp);
835 return 0;
836 }
837
838 static const char *link_events[] = {
839 [IFLA_EVENT_NONE] = "NONE",
840 [IFLA_EVENT_REBOOT] = "REBOOT",
841 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
842 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
843 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
844 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
845 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
846 };
847
848 static void print_link_event(FILE *f, __u32 event)
849 {
850 if (event >= ARRAY_SIZE(link_events))
851 print_int(PRINT_ANY, "event", "event %d ", event);
852 else {
853 if (event)
854 print_string(PRINT_ANY,
855 "event", "event %s ",
856 link_events[event]);
857 }
858 }
859
860 int print_linkinfo(struct nlmsghdr *n, void *arg)
861 {
862 FILE *fp = (FILE *)arg;
863 struct ifinfomsg *ifi = NLMSG_DATA(n);
864 struct rtattr *tb[IFLA_MAX+1];
865 int len = n->nlmsg_len;
866 const char *name;
867 unsigned int m_flag = 0;
868 SPRINT_BUF(b1);
869
870 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
871 return 0;
872
873 len -= NLMSG_LENGTH(sizeof(*ifi));
874 if (len < 0)
875 return -1;
876
877 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
878 return -1;
879 if (filter.up && !(ifi->ifi_flags&IFF_UP))
880 return -1;
881
882 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
883
884 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
885 if (!name)
886 return -1;
887
888 if (filter.label)
889 return 0;
890
891 if (tb[IFLA_GROUP]) {
892 int group = rta_getattr_u32(tb[IFLA_GROUP]);
893
894 if (filter.group != -1 && group != filter.group)
895 return -1;
896 }
897
898 if (tb[IFLA_MASTER]) {
899 int master = rta_getattr_u32(tb[IFLA_MASTER]);
900
901 if (filter.master > 0 && master != filter.master)
902 return -1;
903 } else if (filter.master > 0)
904 return -1;
905
906 if (filter.kind && match_link_kind(tb, filter.kind, 0))
907 return -1;
908
909 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
910 return -1;
911
912 if (n->nlmsg_type == RTM_DELLINK)
913 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
914
915 if (brief)
916 return print_linkinfo_brief(fp, name, ifi, tb);
917
918 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
919
920 m_flag = print_name_and_link("%s: ", name, tb);
921 print_link_flags(fp, ifi->ifi_flags, m_flag);
922
923 if (tb[IFLA_MTU])
924 print_int(PRINT_ANY,
925 "mtu", "mtu %u ",
926 rta_getattr_u32(tb[IFLA_MTU]));
927 if (tb[IFLA_XDP])
928 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
929 if (tb[IFLA_QDISC])
930 print_string(PRINT_ANY,
931 "qdisc",
932 "qdisc %s ",
933 rta_getattr_str(tb[IFLA_QDISC]));
934 if (tb[IFLA_MASTER]) {
935 int master = rta_getattr_u32(tb[IFLA_MASTER]);
936
937 print_string(PRINT_ANY,
938 "master", "master %s ",
939 ll_index_to_name(master));
940 }
941
942 if (tb[IFLA_OPERSTATE])
943 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
944
945 if (do_link && tb[IFLA_LINKMODE])
946 print_linkmode(fp, tb[IFLA_LINKMODE]);
947
948 if (tb[IFLA_GROUP]) {
949 int group = rta_getattr_u32(tb[IFLA_GROUP]);
950
951 print_string(PRINT_ANY,
952 "group",
953 "group %s ",
954 rtnl_group_n2a(group, b1, sizeof(b1)));
955 }
956
957 if (filter.showqueue)
958 print_queuelen(fp, tb);
959
960 if (tb[IFLA_EVENT])
961 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
962
963 if (!filter.family || filter.family == AF_PACKET || show_details) {
964 print_nl();
965 print_string(PRINT_ANY,
966 "link_type",
967 " link/%s ",
968 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
969 if (tb[IFLA_ADDRESS]) {
970 print_color_string(PRINT_ANY,
971 COLOR_MAC,
972 "address",
973 "%s",
974 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
975 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
976 ifi->ifi_type,
977 b1, sizeof(b1)));
978 }
979 if (tb[IFLA_BROADCAST]) {
980 if (ifi->ifi_flags&IFF_POINTOPOINT) {
981 print_string(PRINT_FP, NULL, " peer ", NULL);
982 print_bool(PRINT_JSON,
983 "link_pointtopoint", NULL, true);
984 } else {
985 print_string(PRINT_FP, NULL, " brd ", NULL);
986 }
987 print_color_string(PRINT_ANY,
988 COLOR_MAC,
989 "broadcast",
990 "%s",
991 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
992 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
993 ifi->ifi_type,
994 b1, sizeof(b1)));
995 }
996 }
997
998 if (tb[IFLA_LINK_NETNSID]) {
999 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
1000
1001 if (is_json_context()) {
1002 print_int(PRINT_JSON, "link_netnsid", NULL, id);
1003 } else {
1004 if (id >= 0) {
1005 char *name = get_name_from_nsid(id);
1006
1007 if (name)
1008 print_string(PRINT_FP, NULL,
1009 " link-netns %s", name);
1010 else
1011 print_int(PRINT_FP, NULL,
1012 " link-netnsid %d", id);
1013 } else
1014 print_string(PRINT_FP, NULL,
1015 " link-netnsid %s", "unknown");
1016 }
1017 }
1018
1019 if (tb[IFLA_NEW_NETNSID]) {
1020 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
1021 char *name = get_name_from_nsid(id);
1022
1023 if (name)
1024 print_string(PRINT_FP, NULL, " new-netns %s", name);
1025 else
1026 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
1027 }
1028 if (tb[IFLA_NEW_IFINDEX]) {
1029 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
1030
1031 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1032 }
1033
1034 if (tb[IFLA_PROTO_DOWN]) {
1035 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1036 print_bool(PRINT_ANY,
1037 "proto_down", " protodown on ", true);
1038 }
1039
1040 if (show_details) {
1041 if (tb[IFLA_PROMISCUITY])
1042 print_uint(PRINT_ANY,
1043 "promiscuity",
1044 " promiscuity %u ",
1045 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1046
1047 if (tb[IFLA_MIN_MTU])
1048 print_uint(PRINT_ANY,
1049 "min_mtu", "minmtu %u ",
1050 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1051
1052 if (tb[IFLA_MAX_MTU])
1053 print_uint(PRINT_ANY,
1054 "max_mtu", "maxmtu %u ",
1055 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1056
1057 if (tb[IFLA_LINKINFO])
1058 print_linktype(fp, tb[IFLA_LINKINFO]);
1059
1060 if (do_link && tb[IFLA_AF_SPEC])
1061 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1062
1063 if (tb[IFLA_NUM_TX_QUEUES])
1064 print_uint(PRINT_ANY,
1065 "num_tx_queues",
1066 "numtxqueues %u ",
1067 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1068
1069 if (tb[IFLA_NUM_RX_QUEUES])
1070 print_uint(PRINT_ANY,
1071 "num_rx_queues",
1072 "numrxqueues %u ",
1073 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1074
1075 if (tb[IFLA_GSO_MAX_SIZE])
1076 print_uint(PRINT_ANY,
1077 "gso_max_size",
1078 "gso_max_size %u ",
1079 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1080
1081 if (tb[IFLA_GSO_MAX_SEGS])
1082 print_uint(PRINT_ANY,
1083 "gso_max_segs",
1084 "gso_max_segs %u ",
1085 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1086
1087 if (tb[IFLA_PHYS_PORT_NAME])
1088 print_string(PRINT_ANY,
1089 "phys_port_name",
1090 "portname %s ",
1091 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1092
1093 if (tb[IFLA_PHYS_PORT_ID]) {
1094 print_string(PRINT_ANY,
1095 "phys_port_id",
1096 "portid %s ",
1097 hexstring_n2a(
1098 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1099 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1100 b1, sizeof(b1)));
1101 }
1102
1103 if (tb[IFLA_PHYS_SWITCH_ID]) {
1104 print_string(PRINT_ANY,
1105 "phys_switch_id",
1106 "switchid %s ",
1107 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1108 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1109 b1, sizeof(b1)));
1110 }
1111 }
1112
1113 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1114 print_string(PRINT_FP, NULL, "%s ", _SL_);
1115 print_string(PRINT_ANY,
1116 "ifalias",
1117 "alias %s",
1118 rta_getattr_str(tb[IFLA_IFALIAS]));
1119 }
1120
1121 if ((do_link || show_details) && tb[IFLA_XDP])
1122 xdp_dump(fp, tb[IFLA_XDP], true, true);
1123
1124 if (do_link && show_stats) {
1125 print_nl();
1126 __print_link_stats(fp, tb);
1127 }
1128
1129 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1130 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1131 int rem = RTA_PAYLOAD(vflist);
1132
1133 open_json_array(PRINT_JSON, "vfinfo_list");
1134 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1135 open_json_object(NULL);
1136 print_vfinfo(fp, ifi, i);
1137 close_json_object();
1138 }
1139 close_json_array(PRINT_JSON, NULL);
1140 }
1141
1142 print_string(PRINT_FP, NULL, "%s", "\n");
1143 fflush(fp);
1144 return 1;
1145 }
1146
1147 static int flush_update(void)
1148 {
1149
1150 /*
1151 * Note that the kernel may delete multiple addresses for one
1152 * delete request (e.g. if ipv4 address promotion is disabled).
1153 * Since a flush operation is really a series of delete requests
1154 * its possible that we may request an address delete that has
1155 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1156 * errors returned from a flush request
1157 */
1158 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1159 (errno != EADDRNOTAVAIL)) {
1160 perror("Failed to send flush request");
1161 return -1;
1162 }
1163 filter.flushp = 0;
1164 return 0;
1165 }
1166
1167 static int set_lifetime(unsigned int *lifetime, char *argv)
1168 {
1169 if (strcmp(argv, "forever") == 0)
1170 *lifetime = INFINITY_LIFE_TIME;
1171 else if (get_u32(lifetime, argv, 0))
1172 return -1;
1173
1174 return 0;
1175 }
1176
1177 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1178 struct rtattr *ifa_flags_attr)
1179 {
1180 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1181 ifa->ifa_flags;
1182 }
1183
1184 /* Mapping from argument to address flag mask */
1185 static const struct {
1186 const char *name;
1187 unsigned long value;
1188 } ifa_flag_names[] = {
1189 { "secondary", IFA_F_SECONDARY },
1190 { "temporary", IFA_F_SECONDARY },
1191 { "nodad", IFA_F_NODAD },
1192 { "optimistic", IFA_F_OPTIMISTIC },
1193 { "dadfailed", IFA_F_DADFAILED },
1194 { "home", IFA_F_HOMEADDRESS },
1195 { "deprecated", IFA_F_DEPRECATED },
1196 { "tentative", IFA_F_TENTATIVE },
1197 { "permanent", IFA_F_PERMANENT },
1198 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1199 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1200 { "autojoin", IFA_F_MCAUTOJOIN },
1201 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1202 };
1203
1204 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1205 unsigned int flags)
1206 {
1207 unsigned int i;
1208
1209 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1210 unsigned long mask = ifa_flag_names[i].value;
1211
1212 if (mask == IFA_F_PERMANENT) {
1213 if (!(flags & mask))
1214 print_bool(PRINT_ANY,
1215 "dynamic", "dynamic ", true);
1216 } else if (flags & mask) {
1217 if (mask == IFA_F_SECONDARY &&
1218 ifa->ifa_family == AF_INET6) {
1219 print_bool(PRINT_ANY,
1220 "temporary", "temporary ", true);
1221 } else {
1222 print_string(PRINT_FP, NULL,
1223 "%s ", ifa_flag_names[i].name);
1224 print_bool(PRINT_JSON,
1225 ifa_flag_names[i].name, NULL, true);
1226 }
1227 }
1228
1229 flags &= ~mask;
1230 }
1231
1232 if (flags) {
1233 if (is_json_context()) {
1234 SPRINT_BUF(b1);
1235
1236 snprintf(b1, sizeof(b1), "%02x", flags);
1237 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1238 } else {
1239 fprintf(fp, "flags %02x ", flags);
1240 }
1241 }
1242
1243 }
1244
1245 static int get_filter(const char *arg)
1246 {
1247 bool inv = false;
1248 unsigned int i;
1249
1250 if (arg[0] == '-') {
1251 inv = true;
1252 arg++;
1253 }
1254
1255 /* Special cases */
1256 if (strcmp(arg, "dynamic") == 0) {
1257 inv = !inv;
1258 arg = "permanent";
1259 } else if (strcmp(arg, "primary") == 0) {
1260 inv = !inv;
1261 arg = "secondary";
1262 }
1263
1264 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1265 if (strcmp(arg, ifa_flag_names[i].name))
1266 continue;
1267
1268 if (inv)
1269 filter.flags &= ~ifa_flag_names[i].value;
1270 else
1271 filter.flags |= ifa_flag_names[i].value;
1272 filter.flagmask |= ifa_flag_names[i].value;
1273 return 0;
1274 }
1275 return -1;
1276 }
1277
1278 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1279 {
1280 const char *label;
1281
1282 if (!filter.label)
1283 return 0;
1284
1285 if (rta)
1286 label = RTA_DATA(rta);
1287 else
1288 label = ll_index_to_name(ifindex);
1289
1290 return fnmatch(filter.label, label, 0);
1291 }
1292
1293 int print_addrinfo(struct nlmsghdr *n, void *arg)
1294 {
1295 FILE *fp = arg;
1296 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1297 int len = n->nlmsg_len;
1298 unsigned int ifa_flags;
1299 struct rtattr *rta_tb[IFA_MAX+1];
1300
1301 SPRINT_BUF(b1);
1302
1303 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1304 return 0;
1305 len -= NLMSG_LENGTH(sizeof(*ifa));
1306 if (len < 0) {
1307 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1308 return -1;
1309 }
1310
1311 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1312 return 0;
1313
1314 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1315 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1316
1317 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1318
1319 if (!rta_tb[IFA_LOCAL])
1320 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1321 if (!rta_tb[IFA_ADDRESS])
1322 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1323
1324 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1325 return 0;
1326 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1327 return 0;
1328 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1329 return 0;
1330
1331 if (filter.family && filter.family != ifa->ifa_family)
1332 return 0;
1333
1334 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1335 return 0;
1336
1337 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1338 return 0;
1339
1340 if (filter.flushb) {
1341 struct nlmsghdr *fn;
1342
1343 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1344 if (flush_update())
1345 return -1;
1346 }
1347 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1348 memcpy(fn, n, n->nlmsg_len);
1349 fn->nlmsg_type = RTM_DELADDR;
1350 fn->nlmsg_flags = NLM_F_REQUEST;
1351 fn->nlmsg_seq = ++rth.seq;
1352 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1353 filter.flushed++;
1354 if (show_stats < 2)
1355 return 0;
1356 }
1357
1358 if (n->nlmsg_type == RTM_DELADDR)
1359 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1360
1361 if (!brief) {
1362 const char *name;
1363
1364 if (filter.oneline || filter.flushb) {
1365 const char *dev = ll_index_to_name(ifa->ifa_index);
1366
1367 if (is_json_context()) {
1368 print_int(PRINT_JSON,
1369 "index", NULL, ifa->ifa_index);
1370 print_string(PRINT_JSON, "dev", NULL, dev);
1371 } else {
1372 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1373 }
1374 }
1375
1376 name = family_name(ifa->ifa_family);
1377 if (*name != '?') {
1378 print_string(PRINT_ANY, "family", " %s ", name);
1379 } else {
1380 print_int(PRINT_ANY, "family_index", " family %d ",
1381 ifa->ifa_family);
1382 }
1383 }
1384
1385 if (rta_tb[IFA_LOCAL]) {
1386 print_color_string(PRINT_ANY,
1387 ifa_family_color(ifa->ifa_family),
1388 "local", "%s",
1389 format_host_rta(ifa->ifa_family,
1390 rta_tb[IFA_LOCAL]));
1391 if (rta_tb[IFA_ADDRESS] &&
1392 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1393 RTA_DATA(rta_tb[IFA_LOCAL]),
1394 ifa->ifa_family == AF_INET ? 4 : 16)) {
1395 print_string(PRINT_FP, NULL, " %s ", "peer");
1396 print_color_string(PRINT_ANY,
1397 ifa_family_color(ifa->ifa_family),
1398 "address",
1399 "%s",
1400 format_host_rta(ifa->ifa_family,
1401 rta_tb[IFA_ADDRESS]));
1402 }
1403 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1404
1405 if (rta_tb[IFA_RT_PRIORITY])
1406 print_uint(PRINT_ANY, "metric", "metric %u ",
1407 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1408 }
1409
1410 if (brief)
1411 goto brief_exit;
1412
1413 if (rta_tb[IFA_BROADCAST]) {
1414 print_string(PRINT_FP, NULL, "%s ", "brd");
1415 print_color_string(PRINT_ANY,
1416 ifa_family_color(ifa->ifa_family),
1417 "broadcast",
1418 "%s ",
1419 format_host_rta(ifa->ifa_family,
1420 rta_tb[IFA_BROADCAST]));
1421 }
1422
1423 if (rta_tb[IFA_ANYCAST]) {
1424 print_string(PRINT_FP, NULL, "%s ", "any");
1425 print_color_string(PRINT_ANY,
1426 ifa_family_color(ifa->ifa_family),
1427 "anycast",
1428 "%s ",
1429 format_host_rta(ifa->ifa_family,
1430 rta_tb[IFA_ANYCAST]));
1431 }
1432
1433 print_string(PRINT_ANY,
1434 "scope",
1435 "scope %s ",
1436 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1437
1438 print_ifa_flags(fp, ifa, ifa_flags);
1439
1440 if (rta_tb[IFA_LABEL])
1441 print_string(PRINT_ANY,
1442 "label",
1443 "%s",
1444 rta_getattr_str(rta_tb[IFA_LABEL]));
1445
1446 if (rta_tb[IFA_CACHEINFO]) {
1447 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1448
1449 print_nl();
1450 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1451
1452 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1453 print_uint(PRINT_JSON,
1454 "valid_life_time",
1455 NULL, INFINITY_LIFE_TIME);
1456 print_string(PRINT_FP, NULL, "%s", "forever");
1457 } else {
1458 print_uint(PRINT_ANY,
1459 "valid_life_time", "%usec", ci->ifa_valid);
1460 }
1461
1462 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1463 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1464 print_uint(PRINT_JSON,
1465 "preferred_life_time",
1466 NULL, INFINITY_LIFE_TIME);
1467 print_string(PRINT_FP, NULL, "%s", "forever");
1468 } else {
1469 if (ifa_flags & IFA_F_DEPRECATED)
1470 print_int(PRINT_ANY,
1471 "preferred_life_time",
1472 "%dsec",
1473 ci->ifa_prefered);
1474 else
1475 print_uint(PRINT_ANY,
1476 "preferred_life_time",
1477 "%usec",
1478 ci->ifa_prefered);
1479 }
1480 }
1481 print_string(PRINT_FP, NULL, "%s", "\n");
1482 brief_exit:
1483 fflush(fp);
1484 return 0;
1485 }
1486
1487 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1488 struct nlmsg_list *ainfo, FILE *fp)
1489 {
1490 open_json_array(PRINT_JSON, "addr_info");
1491 for ( ; ainfo ; ainfo = ainfo->next) {
1492 struct nlmsghdr *n = &ainfo->h;
1493 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1494
1495 if (n->nlmsg_type != RTM_NEWADDR)
1496 continue;
1497
1498 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1499 return -1;
1500
1501 if (ifa->ifa_index != ifi->ifi_index ||
1502 (filter.family && filter.family != ifa->ifa_family))
1503 continue;
1504
1505 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1506 continue;
1507
1508 open_json_object(NULL);
1509 print_addrinfo(n, fp);
1510 close_json_object();
1511 }
1512 close_json_array(PRINT_JSON, NULL);
1513
1514 if (brief) {
1515 print_string(PRINT_FP, NULL, "%s", "\n");
1516 fflush(fp);
1517 }
1518 return 0;
1519 }
1520
1521
1522 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1523 {
1524 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1525 struct nlmsg_list *h;
1526
1527 h = malloc(n->nlmsg_len+sizeof(void *));
1528 if (h == NULL)
1529 return -1;
1530
1531 memcpy(&h->h, n, n->nlmsg_len);
1532 h->next = NULL;
1533
1534 if (lchain->tail)
1535 lchain->tail->next = h;
1536 else
1537 lchain->head = h;
1538 lchain->tail = h;
1539
1540 ll_remember_index(n, NULL);
1541 return 0;
1542 }
1543
1544 static __u32 ipadd_dump_magic = 0x47361222;
1545
1546 static int ipadd_save_prep(void)
1547 {
1548 int ret;
1549
1550 if (isatty(STDOUT_FILENO)) {
1551 fprintf(stderr, "Not sending a binary stream to stdout\n");
1552 return -1;
1553 }
1554
1555 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1556 if (ret != sizeof(ipadd_dump_magic)) {
1557 fprintf(stderr, "Can't write magic to dump file\n");
1558 return -1;
1559 }
1560
1561 return 0;
1562 }
1563
1564 static int ipadd_dump_check_magic(void)
1565 {
1566 int ret;
1567 __u32 magic = 0;
1568
1569 if (isatty(STDIN_FILENO)) {
1570 fprintf(stderr, "Can't restore address dump from a terminal\n");
1571 return -1;
1572 }
1573
1574 ret = fread(&magic, sizeof(magic), 1, stdin);
1575 if (magic != ipadd_dump_magic) {
1576 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1577 return -1;
1578 }
1579
1580 return 0;
1581 }
1582
1583 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1584 {
1585 int ret;
1586
1587 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1588 if ((ret > 0) && (ret != n->nlmsg_len)) {
1589 fprintf(stderr, "Short write while saving nlmsg\n");
1590 ret = -EIO;
1591 }
1592
1593 return ret == n->nlmsg_len ? 0 : ret;
1594 }
1595
1596 static int show_handler(struct rtnl_ctrl_data *ctrl,
1597 struct nlmsghdr *n, void *arg)
1598 {
1599 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1600
1601 open_json_object(NULL);
1602 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1603 print_addrinfo(n, stdout);
1604 close_json_object();
1605 return 0;
1606 }
1607
1608 static int ipaddr_showdump(void)
1609 {
1610 int err;
1611
1612 if (ipadd_dump_check_magic())
1613 exit(-1);
1614
1615 new_json_obj(json);
1616 open_json_object(NULL);
1617 open_json_array(PRINT_JSON, "addr_info");
1618
1619 err = rtnl_from_file(stdin, &show_handler, NULL);
1620
1621 close_json_array(PRINT_JSON, NULL);
1622 close_json_object();
1623 delete_json_obj();
1624
1625 exit(err);
1626 }
1627
1628 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1629 struct nlmsghdr *n, void *arg)
1630 {
1631 int ret;
1632
1633 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1634
1635 ll_init_map(&rth);
1636
1637 ret = rtnl_talk(&rth, n, NULL);
1638 if ((ret < 0) && (errno == EEXIST))
1639 ret = 0;
1640
1641 return ret;
1642 }
1643
1644 static int ipaddr_restore(void)
1645 {
1646 if (ipadd_dump_check_magic())
1647 exit(-1);
1648
1649 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1650 }
1651
1652 void free_nlmsg_chain(struct nlmsg_chain *info)
1653 {
1654 struct nlmsg_list *l, *n;
1655
1656 for (l = info->head; l; l = n) {
1657 n = l->next;
1658 free(l);
1659 }
1660 }
1661
1662 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1663 {
1664 struct nlmsg_list *l, **lp;
1665
1666 lp = &linfo->head;
1667 while ((l = *lp) != NULL) {
1668 int ok = 0;
1669 int missing_net_address = 1;
1670 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1671 struct nlmsg_list *a;
1672
1673 for (a = ainfo->head; a; a = a->next) {
1674 struct nlmsghdr *n = &a->h;
1675 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1676 struct rtattr *tb[IFA_MAX + 1];
1677 unsigned int ifa_flags;
1678
1679 if (ifa->ifa_index != ifi->ifi_index)
1680 continue;
1681 missing_net_address = 0;
1682 if (filter.family && filter.family != ifa->ifa_family)
1683 continue;
1684 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1685 continue;
1686
1687 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1688 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1689
1690 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1691 continue;
1692
1693 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1694 continue;
1695
1696 if (!tb[IFA_LOCAL])
1697 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1698 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1699 continue;
1700
1701 ok = 1;
1702 break;
1703 }
1704 if (missing_net_address &&
1705 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1706 ok = 1;
1707 if (!ok) {
1708 *lp = l->next;
1709 free(l);
1710 } else
1711 lp = &l->next;
1712 }
1713 }
1714
1715 static int ipaddr_dump_filter(struct nlmsghdr *nlh, int reqlen)
1716 {
1717 struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
1718
1719 ifa->ifa_index = filter.ifindex;
1720
1721 return 0;
1722 }
1723
1724 static int ipaddr_flush(void)
1725 {
1726 int round = 0;
1727 char flushb[4096-512];
1728
1729 filter.flushb = flushb;
1730 filter.flushp = 0;
1731 filter.flushe = sizeof(flushb);
1732
1733 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1734 if (rtnl_addrdump_req(&rth, filter.family,
1735 ipaddr_dump_filter) < 0) {
1736 perror("Cannot send dump request");
1737 exit(1);
1738 }
1739 filter.flushed = 0;
1740 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1741 stdout, NLM_F_DUMP_INTR) < 0) {
1742 fprintf(stderr, "Flush terminated\n");
1743 exit(1);
1744 }
1745 if (filter.flushed == 0) {
1746 flush_done:
1747 if (show_stats) {
1748 if (round == 0)
1749 printf("Nothing to flush.\n");
1750 else
1751 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1752 }
1753 fflush(stdout);
1754 return 0;
1755 }
1756 round++;
1757 if (flush_update() < 0)
1758 return 1;
1759
1760 if (show_stats) {
1761 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1762 fflush(stdout);
1763 }
1764
1765 /* If we are flushing, and specifying primary, then we
1766 * want to flush only a single round. Otherwise, we'll
1767 * start flushing secondaries that were promoted to
1768 * primaries.
1769 */
1770 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1771 goto flush_done;
1772 }
1773 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1774 fflush(stderr);
1775 return 1;
1776 }
1777
1778 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1779 {
1780 int err;
1781
1782 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1783 if (err)
1784 return err;
1785
1786 if (filter.master) {
1787 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1788 if (err)
1789 return err;
1790 }
1791
1792 if (filter.kind) {
1793 struct rtattr *linkinfo;
1794
1795 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1796
1797 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1798 strlen(filter.kind));
1799 if (err)
1800 return err;
1801
1802 addattr_nest_end(nlh, linkinfo);
1803 }
1804
1805 return 0;
1806 }
1807
1808 static int ipaddr_link_get(int index, struct nlmsg_chain *linfo)
1809 {
1810 struct iplink_req req = {
1811 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
1812 .n.nlmsg_flags = NLM_F_REQUEST,
1813 .n.nlmsg_type = RTM_GETLINK,
1814 .i.ifi_family = filter.family,
1815 .i.ifi_index = index,
1816 };
1817 __u32 filt_mask = RTEXT_FILTER_VF;
1818 struct nlmsghdr *answer;
1819
1820 if (!show_stats)
1821 filt_mask |= RTEXT_FILTER_SKIP_STATS;
1822
1823 addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
1824
1825 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
1826 perror("Cannot send link request");
1827 return 1;
1828 }
1829
1830 if (store_nlmsg(answer, linfo) < 0) {
1831 fprintf(stderr, "Failed to process link information\n");
1832 return 1;
1833 }
1834
1835 return 0;
1836 }
1837
1838 /* fills in linfo with link data and optionally ainfo with address info
1839 * caller can walk lists as desired and must call free_nlmsg_chain for
1840 * both when done
1841 */
1842 int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo)
1843 {
1844 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1845 filter_fn) < 0) {
1846 perror("Cannot send dump request");
1847 return 1;
1848 }
1849
1850 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1851 fprintf(stderr, "Dump terminated\n");
1852 return 1;
1853 }
1854
1855 return 0;
1856 }
1857
1858 static int ip_addr_list(struct nlmsg_chain *ainfo)
1859 {
1860 if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) {
1861 perror("Cannot send dump request");
1862 return 1;
1863 }
1864
1865 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1866 fprintf(stderr, "Dump terminated\n");
1867 return 1;
1868 }
1869
1870 return 0;
1871 }
1872
1873 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1874 {
1875 struct nlmsg_chain linfo = { NULL, NULL};
1876 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = &_ainfo;
1877 struct nlmsg_list *l;
1878 char *filter_dev = NULL;
1879 int no_link = 0;
1880
1881 ipaddr_reset_filter(oneline, 0);
1882 filter.showqueue = 1;
1883 filter.family = preferred_family;
1884
1885 if (action == IPADD_FLUSH) {
1886 if (argc <= 0) {
1887 fprintf(stderr, "Flush requires arguments.\n");
1888
1889 return -1;
1890 }
1891 if (filter.family == AF_PACKET) {
1892 fprintf(stderr, "Cannot flush link addresses.\n");
1893 return -1;
1894 }
1895 }
1896
1897 while (argc > 0) {
1898 if (strcmp(*argv, "to") == 0) {
1899 NEXT_ARG();
1900 if (get_prefix(&filter.pfx, *argv, filter.family))
1901 invarg("invalid \"to\"\n", *argv);
1902 if (filter.family == AF_UNSPEC)
1903 filter.family = filter.pfx.family;
1904 } else if (strcmp(*argv, "scope") == 0) {
1905 unsigned int scope = 0;
1906
1907 NEXT_ARG();
1908 filter.scopemask = -1;
1909 if (rtnl_rtscope_a2n(&scope, *argv)) {
1910 if (strcmp(*argv, "all") != 0)
1911 invarg("invalid \"scope\"\n", *argv);
1912 scope = RT_SCOPE_NOWHERE;
1913 filter.scopemask = 0;
1914 }
1915 filter.scope = scope;
1916 } else if (strcmp(*argv, "up") == 0) {
1917 filter.up = 1;
1918 } else if (get_filter(*argv) == 0) {
1919
1920 } else if (strcmp(*argv, "label") == 0) {
1921 NEXT_ARG();
1922 filter.label = *argv;
1923 } else if (strcmp(*argv, "group") == 0) {
1924 NEXT_ARG();
1925 if (rtnl_group_a2n(&filter.group, *argv))
1926 invarg("Invalid \"group\" value\n", *argv);
1927 } else if (strcmp(*argv, "master") == 0) {
1928 int ifindex;
1929
1930 NEXT_ARG();
1931 ifindex = ll_name_to_index(*argv);
1932 if (!ifindex)
1933 invarg("Device does not exist\n", *argv);
1934 filter.master = ifindex;
1935 } else if (strcmp(*argv, "vrf") == 0) {
1936 int ifindex;
1937
1938 NEXT_ARG();
1939 ifindex = ll_name_to_index(*argv);
1940 if (!ifindex)
1941 invarg("Not a valid VRF name\n", *argv);
1942 if (!name_is_vrf(*argv))
1943 invarg("Not a valid VRF name\n", *argv);
1944 filter.master = ifindex;
1945 } else if (strcmp(*argv, "type") == 0) {
1946 int soff;
1947
1948 NEXT_ARG();
1949 soff = strlen(*argv) - strlen("_slave");
1950 if (!strcmp(*argv + soff, "_slave")) {
1951 (*argv)[soff] = '\0';
1952 filter.slave_kind = *argv;
1953 } else {
1954 filter.kind = *argv;
1955 }
1956 } else {
1957 if (strcmp(*argv, "dev") == 0)
1958 NEXT_ARG();
1959 else if (matches(*argv, "help") == 0)
1960 usage();
1961 if (filter_dev)
1962 duparg2("dev", *argv);
1963 filter_dev = *argv;
1964 }
1965 argv++; argc--;
1966 }
1967
1968 if (filter_dev) {
1969 filter.ifindex = ll_name_to_index(filter_dev);
1970 if (filter.ifindex <= 0) {
1971 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1972 return -1;
1973 }
1974 }
1975
1976 if (action == IPADD_FLUSH)
1977 return ipaddr_flush();
1978
1979 if (action == IPADD_SAVE) {
1980 if (ipadd_save_prep())
1981 exit(1);
1982
1983 if (rtnl_addrdump_req(&rth, preferred_family,
1984 ipaddr_dump_filter) < 0) {
1985 perror("Cannot send dump request");
1986 exit(1);
1987 }
1988
1989 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1990 fprintf(stderr, "Save terminated\n");
1991 exit(1);
1992 }
1993
1994 exit(0);
1995 }
1996
1997 /*
1998 * Initialize a json_writer and open an array object
1999 * if -json was specified.
2000 */
2001 new_json_obj(json);
2002
2003 /*
2004 * If only filter_dev present and none of the other
2005 * link filters are present, use RTM_GETLINK to get
2006 * the link device
2007 */
2008 if (filter_dev && filter.group == -1 && do_link == 1) {
2009 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
2010 perror("Cannot send link get request");
2011 delete_json_obj();
2012 exit(1);
2013 }
2014 delete_json_obj();
2015 goto out;
2016 }
2017
2018 if (filter.ifindex) {
2019 if (ipaddr_link_get(filter.ifindex, &linfo) != 0)
2020 goto out;
2021 } else {
2022 if (ip_link_list(iplink_filter_req, &linfo) != 0)
2023 goto out;
2024 }
2025
2026 if (filter.family != AF_PACKET) {
2027 if (filter.oneline)
2028 no_link = 1;
2029
2030 if (ip_addr_list(ainfo) != 0)
2031 goto out;
2032
2033 ipaddr_filter(&linfo, ainfo);
2034 }
2035
2036 for (l = linfo.head; l; l = l->next) {
2037 struct nlmsghdr *n = &l->h;
2038 struct ifinfomsg *ifi = NLMSG_DATA(n);
2039 int res = 0;
2040
2041 open_json_object(NULL);
2042 if (brief || !no_link)
2043 res = print_linkinfo(n, stdout);
2044 if (res >= 0 && filter.family != AF_PACKET)
2045 print_selected_addrinfo(ifi, ainfo->head, stdout);
2046 if (res > 0 && !do_link && show_stats)
2047 print_link_stats(stdout, n);
2048 close_json_object();
2049 }
2050 fflush(stdout);
2051
2052 out:
2053 free_nlmsg_chain(ainfo);
2054 free_nlmsg_chain(&linfo);
2055 delete_json_obj();
2056 return 0;
2057 }
2058
2059 static void
2060 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2061 {
2062 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2063 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2064 struct ifla_vf_rate *vf_rate;
2065 int rem;
2066
2067 rem = RTA_PAYLOAD(vflist);
2068
2069 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2070 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2071
2072 if (!vf[IFLA_VF_RATE]) {
2073 fprintf(stderr, "VF min/max rate API not supported\n");
2074 exit(1);
2075 }
2076
2077 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2078 if (vf_rate->vf == vfnum) {
2079 *min = vf_rate->min_tx_rate;
2080 *max = vf_rate->max_tx_rate;
2081 return;
2082 }
2083 }
2084 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2085 exit(1);
2086 }
2087
2088 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2089 {
2090 struct nlmsg_chain linfo = { NULL, NULL};
2091 struct rtattr *tb[IFLA_MAX+1];
2092 struct ifinfomsg *ifi;
2093 struct nlmsg_list *l;
2094 struct nlmsghdr *n;
2095 int idx, len;
2096
2097 idx = ll_name_to_index(dev);
2098 if (idx == 0) {
2099 fprintf(stderr, "Device %s does not exist\n", dev);
2100 exit(1);
2101 }
2102
2103 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2104 perror("Cannot send dump request");
2105 exit(1);
2106 }
2107 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2108 fprintf(stderr, "Dump terminated\n");
2109 exit(1);
2110 }
2111 for (l = linfo.head; l; l = l->next) {
2112 n = &l->h;
2113 ifi = NLMSG_DATA(n);
2114
2115 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2116 if (len < 0 || (idx && idx != ifi->ifi_index))
2117 continue;
2118
2119 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2120
2121 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2122 ipaddr_loop_each_vf(tb, vfnum, min, max);
2123 return;
2124 }
2125 }
2126 }
2127
2128 int ipaddr_list_link(int argc, char **argv)
2129 {
2130 preferred_family = AF_PACKET;
2131 do_link = 1;
2132 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2133 }
2134
2135 void ipaddr_reset_filter(int oneline, int ifindex)
2136 {
2137 memset(&filter, 0, sizeof(filter));
2138 filter.oneline = oneline;
2139 filter.ifindex = ifindex;
2140 filter.group = -1;
2141 }
2142
2143 static int default_scope(inet_prefix *lcl)
2144 {
2145 if (lcl->family == AF_INET) {
2146 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2147 return RT_SCOPE_HOST;
2148 }
2149 return 0;
2150 }
2151
2152 static bool ipaddr_is_multicast(inet_prefix *a)
2153 {
2154 if (a->family == AF_INET)
2155 return IN_MULTICAST(ntohl(a->data[0]));
2156 else if (a->family == AF_INET6)
2157 return IN6_IS_ADDR_MULTICAST(a->data);
2158 else
2159 return false;
2160 }
2161
2162 static bool is_valid_label(const char *dev, const char *label)
2163 {
2164 size_t len = strlen(dev);
2165
2166 if (strncmp(label, dev, len) != 0)
2167 return false;
2168
2169 return label[len] == '\0' || label[len] == ':';
2170 }
2171
2172 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2173 {
2174 struct {
2175 struct nlmsghdr n;
2176 struct ifaddrmsg ifa;
2177 char buf[256];
2178 } req = {
2179 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2180 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2181 .n.nlmsg_type = cmd,
2182 .ifa.ifa_family = preferred_family,
2183 };
2184 char *d = NULL;
2185 char *l = NULL;
2186 char *lcl_arg = NULL;
2187 char *valid_lftp = NULL;
2188 char *preferred_lftp = NULL;
2189 inet_prefix lcl = {};
2190 inet_prefix peer;
2191 int local_len = 0;
2192 int peer_len = 0;
2193 int brd_len = 0;
2194 int any_len = 0;
2195 int scoped = 0;
2196 __u32 preferred_lft = INFINITY_LIFE_TIME;
2197 __u32 valid_lft = INFINITY_LIFE_TIME;
2198 unsigned int ifa_flags = 0;
2199
2200 while (argc > 0) {
2201 if (strcmp(*argv, "peer") == 0 ||
2202 strcmp(*argv, "remote") == 0) {
2203 NEXT_ARG();
2204
2205 if (peer_len)
2206 duparg("peer", *argv);
2207 get_prefix(&peer, *argv, req.ifa.ifa_family);
2208 peer_len = peer.bytelen;
2209 if (req.ifa.ifa_family == AF_UNSPEC)
2210 req.ifa.ifa_family = peer.family;
2211 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2212 req.ifa.ifa_prefixlen = peer.bitlen;
2213 } else if (matches(*argv, "broadcast") == 0 ||
2214 strcmp(*argv, "brd") == 0) {
2215 inet_prefix addr;
2216
2217 NEXT_ARG();
2218 if (brd_len)
2219 duparg("broadcast", *argv);
2220 if (strcmp(*argv, "+") == 0)
2221 brd_len = -1;
2222 else if (strcmp(*argv, "-") == 0)
2223 brd_len = -2;
2224 else {
2225 get_addr(&addr, *argv, req.ifa.ifa_family);
2226 if (req.ifa.ifa_family == AF_UNSPEC)
2227 req.ifa.ifa_family = addr.family;
2228 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2229 brd_len = addr.bytelen;
2230 }
2231 } else if (strcmp(*argv, "anycast") == 0) {
2232 inet_prefix addr;
2233
2234 NEXT_ARG();
2235 if (any_len)
2236 duparg("anycast", *argv);
2237 get_addr(&addr, *argv, req.ifa.ifa_family);
2238 if (req.ifa.ifa_family == AF_UNSPEC)
2239 req.ifa.ifa_family = addr.family;
2240 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2241 any_len = addr.bytelen;
2242 } else if (strcmp(*argv, "scope") == 0) {
2243 unsigned int scope = 0;
2244
2245 NEXT_ARG();
2246 if (rtnl_rtscope_a2n(&scope, *argv))
2247 invarg("invalid scope value.", *argv);
2248 req.ifa.ifa_scope = scope;
2249 scoped = 1;
2250 } else if (strcmp(*argv, "dev") == 0) {
2251 NEXT_ARG();
2252 d = *argv;
2253 } else if (strcmp(*argv, "label") == 0) {
2254 NEXT_ARG();
2255 l = *argv;
2256 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2257 } else if (matches(*argv, "metric") == 0 ||
2258 matches(*argv, "priority") == 0 ||
2259 matches(*argv, "preference") == 0) {
2260 __u32 metric;
2261
2262 NEXT_ARG();
2263 if (get_u32(&metric, *argv, 0))
2264 invarg("\"metric\" value is invalid\n", *argv);
2265 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2266 } else if (matches(*argv, "valid_lft") == 0) {
2267 if (valid_lftp)
2268 duparg("valid_lft", *argv);
2269 NEXT_ARG();
2270 valid_lftp = *argv;
2271 if (set_lifetime(&valid_lft, *argv))
2272 invarg("valid_lft value", *argv);
2273 } else if (matches(*argv, "preferred_lft") == 0) {
2274 if (preferred_lftp)
2275 duparg("preferred_lft", *argv);
2276 NEXT_ARG();
2277 preferred_lftp = *argv;
2278 if (set_lifetime(&preferred_lft, *argv))
2279 invarg("preferred_lft value", *argv);
2280 } else if (strcmp(*argv, "home") == 0) {
2281 if (req.ifa.ifa_family == AF_INET6)
2282 ifa_flags |= IFA_F_HOMEADDRESS;
2283 else
2284 fprintf(stderr, "Warning: home option can be set only for IPv6 addresses\n");
2285 } else if (strcmp(*argv, "nodad") == 0) {
2286 if (req.ifa.ifa_family == AF_INET6)
2287 ifa_flags |= IFA_F_NODAD;
2288 else
2289 fprintf(stderr, "Warning: nodad option can be set only for IPv6 addresses\n");
2290 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2291 if (req.ifa.ifa_family == AF_INET6)
2292 ifa_flags |= IFA_F_MANAGETEMPADDR;
2293 else
2294 fprintf(stderr, "Warning: mngtmpaddr option can be set only for IPv6 addresses\n");
2295 } else if (strcmp(*argv, "noprefixroute") == 0) {
2296 ifa_flags |= IFA_F_NOPREFIXROUTE;
2297 } else if (strcmp(*argv, "autojoin") == 0) {
2298 ifa_flags |= IFA_F_MCAUTOJOIN;
2299 } else {
2300 if (strcmp(*argv, "local") == 0)
2301 NEXT_ARG();
2302 if (matches(*argv, "help") == 0)
2303 usage();
2304 if (local_len)
2305 duparg2("local", *argv);
2306 lcl_arg = *argv;
2307 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2308 if (req.ifa.ifa_family == AF_UNSPEC)
2309 req.ifa.ifa_family = lcl.family;
2310 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2311 local_len = lcl.bytelen;
2312 }
2313 argc--; argv++;
2314 }
2315 if (ifa_flags <= 0xff)
2316 req.ifa.ifa_flags = ifa_flags;
2317 else
2318 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2319
2320 if (d == NULL) {
2321 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2322 return -1;
2323 }
2324 if (l && !is_valid_label(d, l)) {
2325 fprintf(stderr,
2326 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2327 l, d);
2328 return -1;
2329 }
2330
2331 if (peer_len == 0 && local_len) {
2332 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2333 fprintf(stderr,
2334 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2335 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2336 " This special behaviour is likely to disappear in further releases,\n"
2337 " fix your scripts!\n", lcl_arg, local_len*8);
2338 } else {
2339 peer = lcl;
2340 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2341 }
2342 }
2343 if (req.ifa.ifa_prefixlen == 0)
2344 req.ifa.ifa_prefixlen = lcl.bitlen;
2345
2346 if (brd_len < 0 && cmd != RTM_DELADDR) {
2347 inet_prefix brd;
2348 int i;
2349
2350 if (req.ifa.ifa_family != AF_INET) {
2351 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2352 return -1;
2353 }
2354 brd = peer;
2355 if (brd.bitlen <= 30) {
2356 for (i = 31; i >= brd.bitlen; i--) {
2357 if (brd_len == -1)
2358 brd.data[0] |= htonl(1<<(31-i));
2359 else
2360 brd.data[0] &= ~htonl(1<<(31-i));
2361 }
2362 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2363 brd_len = brd.bytelen;
2364 }
2365 }
2366 if (!scoped && cmd != RTM_DELADDR)
2367 req.ifa.ifa_scope = default_scope(&lcl);
2368
2369 req.ifa.ifa_index = ll_name_to_index(d);
2370 if (!req.ifa.ifa_index)
2371 return nodev(d);
2372
2373 if (valid_lftp || preferred_lftp) {
2374 struct ifa_cacheinfo cinfo = {};
2375
2376 if (!valid_lft) {
2377 fprintf(stderr, "valid_lft is zero\n");
2378 return -1;
2379 }
2380 if (valid_lft < preferred_lft) {
2381 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2382 return -1;
2383 }
2384
2385 cinfo.ifa_prefered = preferred_lft;
2386 cinfo.ifa_valid = valid_lft;
2387 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2388 sizeof(cinfo));
2389 }
2390
2391 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2392 fprintf(stderr, "autojoin needs multicast address\n");
2393 return -1;
2394 }
2395
2396 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2397 return -2;
2398
2399 return 0;
2400 }
2401
2402 int do_ipaddr(int argc, char **argv)
2403 {
2404 if (argc < 1)
2405 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2406 if (matches(*argv, "add") == 0)
2407 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2408 if (matches(*argv, "change") == 0 ||
2409 strcmp(*argv, "chg") == 0)
2410 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2411 if (matches(*argv, "replace") == 0)
2412 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2413 if (matches(*argv, "delete") == 0)
2414 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2415 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2416 || matches(*argv, "lst") == 0)
2417 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2418 if (matches(*argv, "flush") == 0)
2419 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2420 if (matches(*argv, "save") == 0)
2421 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2422 if (matches(*argv, "showdump") == 0)
2423 return ipaddr_showdump();
2424 if (matches(*argv, "restore") == 0)
2425 return ipaddr_restore();
2426 if (matches(*argv, "help") == 0)
2427 usage();
2428 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2429 exit(-1);
2430 }
Upstream mirror of iproute2