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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_IB_NODE_GUID]) {
488 struct ifla_vf_guid *guid = RTA_DATA(vf[IFLA_VF_IB_NODE_GUID]);
489 uint64_t node_guid = ntohll(guid->guid);
490
491 print_string(PRINT_ANY, "node guid", ", NODE_GUID %s",
492 ll_addr_n2a((const unsigned char *)&node_guid,
493 sizeof(node_guid), ARPHRD_INFINIBAND,
494 b1, sizeof(b1)));
495 }
496 if (vf[IFLA_VF_IB_PORT_GUID]) {
497 struct ifla_vf_guid *guid = RTA_DATA(vf[IFLA_VF_IB_PORT_GUID]);
498 uint64_t port_guid = ntohll(guid->guid);
499
500 print_string(PRINT_ANY, "port guid", ", PORT_GUID %s",
501 ll_addr_n2a((const unsigned char *)&port_guid,
502 sizeof(port_guid), ARPHRD_INFINIBAND,
503 b1, sizeof(b1)));
504 }
505 if (vf[IFLA_VF_LINK_STATE]) {
506 struct ifla_vf_link_state *vf_linkstate =
507 RTA_DATA(vf[IFLA_VF_LINK_STATE]);
508
509 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
510 print_string(PRINT_ANY,
511 "link_state",
512 ", link-state %s",
513 "auto");
514 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
515 print_string(PRINT_ANY,
516 "link_state",
517 ", link-state %s",
518 "enable");
519 else
520 print_string(PRINT_ANY,
521 "link_state",
522 ", link-state %s",
523 "disable");
524 }
525
526 if (vf[IFLA_VF_TRUST]) {
527 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
528
529 if (vf_trust->setting != -1)
530 print_bool(PRINT_ANY,
531 "trust",
532 vf_trust->setting ? ", trust on" : ", trust off",
533 vf_trust->setting);
534 }
535
536 if (vf[IFLA_VF_RSS_QUERY_EN]) {
537 struct ifla_vf_rss_query_en *rss_query =
538 RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]);
539
540 if (rss_query->setting != -1)
541 print_bool(PRINT_ANY,
542 "query_rss_en",
543 rss_query->setting ? ", query_rss on"
544 : ", query_rss off",
545 rss_query->setting);
546 }
547
548 if (vf[IFLA_VF_STATS] && show_stats)
549 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
550 }
551
552 void print_num(FILE *fp, unsigned int width, uint64_t count)
553 {
554 const char *prefix = "kMGTPE";
555 const unsigned int base = use_iec ? 1024 : 1000;
556 uint64_t powi = 1;
557 uint16_t powj = 1;
558 uint8_t precision = 2;
559 char buf[64];
560
561 if (!human_readable || count < base) {
562 fprintf(fp, "%-*"PRIu64" ", width, count);
563 return;
564 }
565
566 /* increase value by a factor of 1000/1024 and print
567 * if result is something a human can read
568 */
569 for (;;) {
570 powi *= base;
571 if (count / base < powi)
572 break;
573
574 if (!prefix[1])
575 break;
576 ++prefix;
577 }
578
579 /* try to guess a good number of digits for precision */
580 for (; precision > 0; precision--) {
581 powj *= 10;
582 if (count / powi < powj)
583 break;
584 }
585
586 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
587 (double) count / powi, *prefix, use_iec ? "i" : "");
588
589 fprintf(fp, "%-*s ", width, buf);
590 }
591
592 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
593 {
594 struct rtattr *vf[IFLA_VF_STATS_MAX + 1];
595
596 if (vfstats->rta_type != IFLA_VF_STATS) {
597 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
598 return;
599 }
600
601 parse_rtattr_nested(vf, IFLA_VF_STATS_MAX, vfstats);
602
603 if (is_json_context()) {
604 open_json_object("stats");
605
606 /* RX stats */
607 open_json_object("rx");
608 print_u64(PRINT_JSON, "bytes", NULL,
609 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
610 print_u64(PRINT_JSON, "packets", NULL,
611 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
612 print_u64(PRINT_JSON, "multicast", NULL,
613 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
614 print_u64(PRINT_JSON, "broadcast", NULL,
615 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
616 if (vf[IFLA_VF_STATS_RX_DROPPED])
617 print_u64(PRINT_JSON, "dropped", NULL,
618 rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
619 close_json_object();
620
621 /* TX stats */
622 open_json_object("tx");
623 print_u64(PRINT_JSON, "tx_bytes", NULL,
624 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
625 print_u64(PRINT_JSON, "tx_packets", NULL,
626 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
627 if (vf[IFLA_VF_STATS_TX_DROPPED])
628 print_u64(PRINT_JSON, "dropped", NULL,
629 rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
630 close_json_object();
631 close_json_object();
632 } else {
633 /* RX stats */
634 fprintf(fp, "%s", _SL_);
635 fprintf(fp, " RX: bytes packets mcast bcast ");
636 if (vf[IFLA_VF_STATS_RX_DROPPED])
637 fprintf(fp, " dropped ");
638 fprintf(fp, "%s", _SL_);
639 fprintf(fp, " ");
640
641 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
642 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
643 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
644 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
645 if (vf[IFLA_VF_STATS_RX_DROPPED])
646 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
647
648 /* TX stats */
649 fprintf(fp, "%s", _SL_);
650 fprintf(fp, " TX: bytes packets ");
651 if (vf[IFLA_VF_STATS_TX_DROPPED])
652 fprintf(fp, " dropped ");
653 fprintf(fp, "%s", _SL_);
654 fprintf(fp, " ");
655
656 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
657 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
658 if (vf[IFLA_VF_STATS_TX_DROPPED])
659 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
660 }
661 }
662
663 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
664 {
665 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
666 struct rtnl_link_stats64 _s, *s = &_s;
667 int ret;
668
669 ret = get_rtnl_link_stats_rta(s, tb);
670 if (ret < 0)
671 return;
672
673 if (is_json_context()) {
674 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
675
676 /* RX stats */
677 open_json_object("rx");
678 print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes);
679 print_u64(PRINT_JSON, "packets", NULL, s->rx_packets);
680 print_u64(PRINT_JSON, "errors", NULL, s->rx_errors);
681 print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped);
682 print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
683 print_u64(PRINT_JSON, "multicast", NULL, s->multicast);
684 if (s->rx_compressed)
685 print_u64(PRINT_JSON,
686 "compressed", NULL, s->rx_compressed);
687
688 /* RX error stats */
689 if (show_stats > 1) {
690 print_u64(PRINT_JSON,
691 "length_errors",
692 NULL, s->rx_length_errors);
693 print_u64(PRINT_JSON,
694 "crc_errors",
695 NULL, s->rx_crc_errors);
696 print_u64(PRINT_JSON,
697 "frame_errors",
698 NULL, s->rx_frame_errors);
699 print_u64(PRINT_JSON,
700 "fifo_errors",
701 NULL, s->rx_fifo_errors);
702 print_u64(PRINT_JSON,
703 "missed_errors",
704 NULL, s->rx_missed_errors);
705 if (s->rx_nohandler)
706 print_u64(PRINT_JSON,
707 "nohandler", NULL, s->rx_nohandler);
708 }
709 close_json_object();
710
711 /* TX stats */
712 open_json_object("tx");
713 print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes);
714 print_u64(PRINT_JSON, "packets", NULL, s->tx_packets);
715 print_u64(PRINT_JSON, "errors", NULL, s->tx_errors);
716 print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped);
717 print_u64(PRINT_JSON,
718 "carrier_errors",
719 NULL, s->tx_carrier_errors);
720 print_u64(PRINT_JSON, "collisions", NULL, s->collisions);
721 if (s->tx_compressed)
722 print_u64(PRINT_JSON,
723 "compressed", NULL, s->tx_compressed);
724
725 /* TX error stats */
726 if (show_stats > 1) {
727 print_u64(PRINT_JSON,
728 "aborted_errors",
729 NULL, s->tx_aborted_errors);
730 print_u64(PRINT_JSON,
731 "fifo_errors",
732 NULL, s->tx_fifo_errors);
733 print_u64(PRINT_JSON,
734 "window_errors",
735 NULL, s->tx_window_errors);
736 print_u64(PRINT_JSON,
737 "heartbeat_errors",
738 NULL, s->tx_heartbeat_errors);
739 if (carrier_changes)
740 print_u64(PRINT_JSON, "carrier_changes", NULL,
741 rta_getattr_u32(carrier_changes));
742 }
743
744 close_json_object();
745 close_json_object();
746 } else {
747 /* RX stats */
748 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
749 s->rx_compressed ? "compressed" : "", _SL_);
750
751 fprintf(fp, " ");
752 print_num(fp, 10, s->rx_bytes);
753 print_num(fp, 8, s->rx_packets);
754 print_num(fp, 7, s->rx_errors);
755 print_num(fp, 7, s->rx_dropped);
756 print_num(fp, 7, s->rx_over_errors);
757 print_num(fp, 7, s->multicast);
758 if (s->rx_compressed)
759 print_num(fp, 7, s->rx_compressed);
760
761 /* RX error stats */
762 if (show_stats > 1) {
763 fprintf(fp, "%s", _SL_);
764 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
765 s->rx_nohandler ? " nohandler" : "", _SL_);
766 fprintf(fp, " ");
767 print_num(fp, 8, s->rx_length_errors);
768 print_num(fp, 7, s->rx_crc_errors);
769 print_num(fp, 7, s->rx_frame_errors);
770 print_num(fp, 7, s->rx_fifo_errors);
771 print_num(fp, 7, s->rx_missed_errors);
772 if (s->rx_nohandler)
773 print_num(fp, 7, s->rx_nohandler);
774 }
775 fprintf(fp, "%s", _SL_);
776
777 /* TX stats */
778 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
779 s->tx_compressed ? "compressed" : "", _SL_);
780
781 fprintf(fp, " ");
782 print_num(fp, 10, s->tx_bytes);
783 print_num(fp, 8, s->tx_packets);
784 print_num(fp, 7, s->tx_errors);
785 print_num(fp, 7, s->tx_dropped);
786 print_num(fp, 7, s->tx_carrier_errors);
787 print_num(fp, 7, s->collisions);
788 if (s->tx_compressed)
789 print_num(fp, 7, s->tx_compressed);
790
791 /* TX error stats */
792 if (show_stats > 1) {
793 fprintf(fp, "%s", _SL_);
794 fprintf(fp, " TX errors: aborted fifo window heartbeat");
795 if (carrier_changes)
796 fprintf(fp, " transns");
797 fprintf(fp, "%s", _SL_);
798
799 fprintf(fp, " ");
800 print_num(fp, 8, s->tx_aborted_errors);
801 print_num(fp, 7, s->tx_fifo_errors);
802 print_num(fp, 7, s->tx_window_errors);
803 print_num(fp, 7, s->tx_heartbeat_errors);
804 if (carrier_changes)
805 print_num(fp, 7,
806 rta_getattr_u32(carrier_changes));
807 }
808 }
809 }
810
811 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
812 {
813 struct ifinfomsg *ifi = NLMSG_DATA(n);
814 struct rtattr *tb[IFLA_MAX+1];
815
816 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
817 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
818 __print_link_stats(fp, tb);
819 print_nl();
820 }
821
822 static int print_linkinfo_brief(FILE *fp, const char *name,
823 const struct ifinfomsg *ifi,
824 struct rtattr *tb[])
825 {
826 unsigned int m_flag = 0;
827
828 m_flag = print_name_and_link("%-16s ", name, tb);
829
830 if (tb[IFLA_OPERSTATE])
831 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
832
833 if (filter.family == AF_PACKET) {
834 SPRINT_BUF(b1);
835
836 if (tb[IFLA_ADDRESS]) {
837 print_color_string(PRINT_ANY, COLOR_MAC,
838 "address", "%s ",
839 ll_addr_n2a(
840 RTA_DATA(tb[IFLA_ADDRESS]),
841 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
842 ifi->ifi_type,
843 b1, sizeof(b1)));
844 }
845 }
846
847 if (filter.family == AF_PACKET) {
848 print_link_flags(fp, ifi->ifi_flags, m_flag);
849 print_string(PRINT_FP, NULL, "%s", "\n");
850 }
851
852 fflush(fp);
853 return 0;
854 }
855
856 static const char *link_events[] = {
857 [IFLA_EVENT_NONE] = "NONE",
858 [IFLA_EVENT_REBOOT] = "REBOOT",
859 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
860 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
861 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
862 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
863 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
864 };
865
866 static void print_link_event(FILE *f, __u32 event)
867 {
868 if (event >= ARRAY_SIZE(link_events))
869 print_int(PRINT_ANY, "event", "event %d ", event);
870 else {
871 if (event)
872 print_string(PRINT_ANY,
873 "event", "event %s ",
874 link_events[event]);
875 }
876 }
877
878 int print_linkinfo(struct nlmsghdr *n, void *arg)
879 {
880 FILE *fp = (FILE *)arg;
881 struct ifinfomsg *ifi = NLMSG_DATA(n);
882 struct rtattr *tb[IFLA_MAX+1];
883 int len = n->nlmsg_len;
884 const char *name;
885 unsigned int m_flag = 0;
886 SPRINT_BUF(b1);
887
888 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
889 return 0;
890
891 len -= NLMSG_LENGTH(sizeof(*ifi));
892 if (len < 0)
893 return -1;
894
895 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
896 return -1;
897 if (filter.up && !(ifi->ifi_flags&IFF_UP))
898 return -1;
899
900 parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, NLA_F_NESTED);
901
902 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
903 if (!name)
904 return -1;
905
906 if (filter.label)
907 return 0;
908
909 if (tb[IFLA_GROUP]) {
910 int group = rta_getattr_u32(tb[IFLA_GROUP]);
911
912 if (filter.group != -1 && group != filter.group)
913 return -1;
914 }
915
916 if (tb[IFLA_MASTER]) {
917 int master = rta_getattr_u32(tb[IFLA_MASTER]);
918
919 if (filter.master > 0 && master != filter.master)
920 return -1;
921 } else if (filter.master > 0)
922 return -1;
923
924 if (filter.kind && match_link_kind(tb, filter.kind, 0))
925 return -1;
926
927 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
928 return -1;
929
930 if (n->nlmsg_type == RTM_DELLINK)
931 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
932
933 if (brief)
934 return print_linkinfo_brief(fp, name, ifi, tb);
935
936 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
937
938 m_flag = print_name_and_link("%s: ", name, tb);
939 print_link_flags(fp, ifi->ifi_flags, m_flag);
940
941 if (tb[IFLA_MTU])
942 print_int(PRINT_ANY,
943 "mtu", "mtu %u ",
944 rta_getattr_u32(tb[IFLA_MTU]));
945 if (tb[IFLA_XDP])
946 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
947 if (tb[IFLA_QDISC])
948 print_string(PRINT_ANY,
949 "qdisc",
950 "qdisc %s ",
951 rta_getattr_str(tb[IFLA_QDISC]));
952 if (tb[IFLA_MASTER]) {
953 int master = rta_getattr_u32(tb[IFLA_MASTER]);
954
955 print_string(PRINT_ANY,
956 "master", "master %s ",
957 ll_index_to_name(master));
958 }
959
960 if (tb[IFLA_OPERSTATE])
961 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
962
963 if (do_link && tb[IFLA_LINKMODE])
964 print_linkmode(fp, tb[IFLA_LINKMODE]);
965
966 if (tb[IFLA_GROUP]) {
967 int group = rta_getattr_u32(tb[IFLA_GROUP]);
968
969 print_string(PRINT_ANY,
970 "group",
971 "group %s ",
972 rtnl_group_n2a(group, b1, sizeof(b1)));
973 }
974
975 if (filter.showqueue)
976 print_queuelen(fp, tb);
977
978 if (tb[IFLA_EVENT])
979 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
980
981 if (!filter.family || filter.family == AF_PACKET || show_details) {
982 print_nl();
983 print_string(PRINT_ANY,
984 "link_type",
985 " link/%s ",
986 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
987 if (tb[IFLA_ADDRESS]) {
988 print_color_string(PRINT_ANY,
989 COLOR_MAC,
990 "address",
991 "%s",
992 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
993 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
994 ifi->ifi_type,
995 b1, sizeof(b1)));
996 }
997 if (tb[IFLA_BROADCAST]) {
998 if (ifi->ifi_flags&IFF_POINTOPOINT) {
999 print_string(PRINT_FP, NULL, " peer ", NULL);
1000 print_bool(PRINT_JSON,
1001 "link_pointtopoint", NULL, true);
1002 } else {
1003 print_string(PRINT_FP, NULL, " brd ", NULL);
1004 }
1005 print_color_string(PRINT_ANY,
1006 COLOR_MAC,
1007 "broadcast",
1008 "%s",
1009 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
1010 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
1011 ifi->ifi_type,
1012 b1, sizeof(b1)));
1013 }
1014 }
1015
1016 if (tb[IFLA_LINK_NETNSID]) {
1017 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
1018
1019 if (is_json_context()) {
1020 print_int(PRINT_JSON, "link_netnsid", NULL, id);
1021 } else {
1022 if (id >= 0) {
1023 char *name = get_name_from_nsid(id);
1024
1025 if (name)
1026 print_string(PRINT_FP, NULL,
1027 " link-netns %s", name);
1028 else
1029 print_int(PRINT_FP, NULL,
1030 " link-netnsid %d", id);
1031 } else
1032 print_string(PRINT_FP, NULL,
1033 " link-netnsid %s", "unknown");
1034 }
1035 }
1036
1037 if (tb[IFLA_NEW_NETNSID]) {
1038 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
1039 char *name = get_name_from_nsid(id);
1040
1041 if (name)
1042 print_string(PRINT_FP, NULL, " new-netns %s", name);
1043 else
1044 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
1045 }
1046 if (tb[IFLA_NEW_IFINDEX]) {
1047 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
1048
1049 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1050 }
1051
1052 if (tb[IFLA_PROTO_DOWN]) {
1053 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1054 print_bool(PRINT_ANY,
1055 "proto_down", " protodown on ", true);
1056 }
1057
1058 if (show_details) {
1059 if (tb[IFLA_PROMISCUITY])
1060 print_uint(PRINT_ANY,
1061 "promiscuity",
1062 " promiscuity %u ",
1063 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1064
1065 if (tb[IFLA_MIN_MTU])
1066 print_uint(PRINT_ANY,
1067 "min_mtu", "minmtu %u ",
1068 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1069
1070 if (tb[IFLA_MAX_MTU])
1071 print_uint(PRINT_ANY,
1072 "max_mtu", "maxmtu %u ",
1073 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1074
1075 if (tb[IFLA_LINKINFO])
1076 print_linktype(fp, tb[IFLA_LINKINFO]);
1077
1078 if (do_link && tb[IFLA_AF_SPEC])
1079 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1080
1081 if (tb[IFLA_NUM_TX_QUEUES])
1082 print_uint(PRINT_ANY,
1083 "num_tx_queues",
1084 "numtxqueues %u ",
1085 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1086
1087 if (tb[IFLA_NUM_RX_QUEUES])
1088 print_uint(PRINT_ANY,
1089 "num_rx_queues",
1090 "numrxqueues %u ",
1091 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1092
1093 if (tb[IFLA_GSO_MAX_SIZE])
1094 print_uint(PRINT_ANY,
1095 "gso_max_size",
1096 "gso_max_size %u ",
1097 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1098
1099 if (tb[IFLA_GSO_MAX_SEGS])
1100 print_uint(PRINT_ANY,
1101 "gso_max_segs",
1102 "gso_max_segs %u ",
1103 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1104
1105 if (tb[IFLA_PHYS_PORT_NAME])
1106 print_string(PRINT_ANY,
1107 "phys_port_name",
1108 "portname %s ",
1109 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1110
1111 if (tb[IFLA_PHYS_PORT_ID]) {
1112 print_string(PRINT_ANY,
1113 "phys_port_id",
1114 "portid %s ",
1115 hexstring_n2a(
1116 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1117 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1118 b1, sizeof(b1)));
1119 }
1120
1121 if (tb[IFLA_PHYS_SWITCH_ID]) {
1122 print_string(PRINT_ANY,
1123 "phys_switch_id",
1124 "switchid %s ",
1125 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1126 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1127 b1, sizeof(b1)));
1128 }
1129 }
1130
1131 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1132 print_string(PRINT_FP, NULL, "%s ", _SL_);
1133 print_string(PRINT_ANY,
1134 "ifalias",
1135 "alias %s",
1136 rta_getattr_str(tb[IFLA_IFALIAS]));
1137 }
1138
1139 if ((do_link || show_details) && tb[IFLA_XDP])
1140 xdp_dump(fp, tb[IFLA_XDP], true, true);
1141
1142 if (do_link && show_stats) {
1143 print_nl();
1144 __print_link_stats(fp, tb);
1145 }
1146
1147 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1148 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1149 int rem = RTA_PAYLOAD(vflist);
1150
1151 open_json_array(PRINT_JSON, "vfinfo_list");
1152 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1153 open_json_object(NULL);
1154 print_vfinfo(fp, ifi, i);
1155 close_json_object();
1156 }
1157 close_json_array(PRINT_JSON, NULL);
1158 }
1159
1160 if (tb[IFLA_PROP_LIST]) {
1161 struct rtattr *i, *proplist = tb[IFLA_PROP_LIST];
1162 int rem = RTA_PAYLOAD(proplist);
1163
1164 open_json_array(PRINT_JSON, "altnames");
1165 for (i = RTA_DATA(proplist); RTA_OK(i, rem);
1166 i = RTA_NEXT(i, rem)) {
1167 if (i->rta_type != IFLA_ALT_IFNAME)
1168 continue;
1169 print_string(PRINT_FP, NULL, "%s altname ", _SL_);
1170 print_string(PRINT_ANY, NULL,
1171 "%s", rta_getattr_str(i));
1172 }
1173 close_json_array(PRINT_JSON, NULL);
1174 }
1175
1176 print_string(PRINT_FP, NULL, "%s", "\n");
1177 fflush(fp);
1178 return 1;
1179 }
1180
1181 static int flush_update(void)
1182 {
1183
1184 /*
1185 * Note that the kernel may delete multiple addresses for one
1186 * delete request (e.g. if ipv4 address promotion is disabled).
1187 * Since a flush operation is really a series of delete requests
1188 * its possible that we may request an address delete that has
1189 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1190 * errors returned from a flush request
1191 */
1192 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1193 (errno != EADDRNOTAVAIL)) {
1194 perror("Failed to send flush request");
1195 return -1;
1196 }
1197 filter.flushp = 0;
1198 return 0;
1199 }
1200
1201 static int set_lifetime(unsigned int *lifetime, char *argv)
1202 {
1203 if (strcmp(argv, "forever") == 0)
1204 *lifetime = INFINITY_LIFE_TIME;
1205 else if (get_u32(lifetime, argv, 0))
1206 return -1;
1207
1208 return 0;
1209 }
1210
1211 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1212 struct rtattr *ifa_flags_attr)
1213 {
1214 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1215 ifa->ifa_flags;
1216 }
1217
1218 /* Mapping from argument to address flag mask */
1219 static const struct {
1220 const char *name;
1221 unsigned long value;
1222 } ifa_flag_names[] = {
1223 { "secondary", IFA_F_SECONDARY },
1224 { "temporary", IFA_F_SECONDARY },
1225 { "nodad", IFA_F_NODAD },
1226 { "optimistic", IFA_F_OPTIMISTIC },
1227 { "dadfailed", IFA_F_DADFAILED },
1228 { "home", IFA_F_HOMEADDRESS },
1229 { "deprecated", IFA_F_DEPRECATED },
1230 { "tentative", IFA_F_TENTATIVE },
1231 { "permanent", IFA_F_PERMANENT },
1232 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1233 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1234 { "autojoin", IFA_F_MCAUTOJOIN },
1235 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1236 };
1237
1238 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1239 unsigned int flags)
1240 {
1241 unsigned int i;
1242
1243 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1244 unsigned long mask = ifa_flag_names[i].value;
1245
1246 if (mask == IFA_F_PERMANENT) {
1247 if (!(flags & mask))
1248 print_bool(PRINT_ANY,
1249 "dynamic", "dynamic ", true);
1250 } else if (flags & mask) {
1251 if (mask == IFA_F_SECONDARY &&
1252 ifa->ifa_family == AF_INET6) {
1253 print_bool(PRINT_ANY,
1254 "temporary", "temporary ", true);
1255 } else {
1256 print_string(PRINT_FP, NULL,
1257 "%s ", ifa_flag_names[i].name);
1258 print_bool(PRINT_JSON,
1259 ifa_flag_names[i].name, NULL, true);
1260 }
1261 }
1262
1263 flags &= ~mask;
1264 }
1265
1266 if (flags) {
1267 if (is_json_context()) {
1268 SPRINT_BUF(b1);
1269
1270 snprintf(b1, sizeof(b1), "%02x", flags);
1271 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1272 } else {
1273 fprintf(fp, "flags %02x ", flags);
1274 }
1275 }
1276
1277 }
1278
1279 static int get_filter(const char *arg)
1280 {
1281 bool inv = false;
1282 unsigned int i;
1283
1284 if (arg[0] == '-') {
1285 inv = true;
1286 arg++;
1287 }
1288
1289 /* Special cases */
1290 if (strcmp(arg, "dynamic") == 0) {
1291 inv = !inv;
1292 arg = "permanent";
1293 } else if (strcmp(arg, "primary") == 0) {
1294 inv = !inv;
1295 arg = "secondary";
1296 }
1297
1298 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1299 if (strcmp(arg, ifa_flag_names[i].name))
1300 continue;
1301
1302 if (inv)
1303 filter.flags &= ~ifa_flag_names[i].value;
1304 else
1305 filter.flags |= ifa_flag_names[i].value;
1306 filter.flagmask |= ifa_flag_names[i].value;
1307 return 0;
1308 }
1309 return -1;
1310 }
1311
1312 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1313 {
1314 const char *label;
1315
1316 if (!filter.label)
1317 return 0;
1318
1319 if (rta)
1320 label = RTA_DATA(rta);
1321 else
1322 label = ll_index_to_name(ifindex);
1323
1324 return fnmatch(filter.label, label, 0);
1325 }
1326
1327 int print_addrinfo(struct nlmsghdr *n, void *arg)
1328 {
1329 FILE *fp = arg;
1330 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1331 int len = n->nlmsg_len;
1332 unsigned int ifa_flags;
1333 struct rtattr *rta_tb[IFA_MAX+1];
1334
1335 SPRINT_BUF(b1);
1336
1337 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1338 return 0;
1339 len -= NLMSG_LENGTH(sizeof(*ifa));
1340 if (len < 0) {
1341 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1342 return -1;
1343 }
1344
1345 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1346 return 0;
1347
1348 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1349 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1350
1351 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1352
1353 if (!rta_tb[IFA_LOCAL])
1354 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1355 if (!rta_tb[IFA_ADDRESS])
1356 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1357
1358 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1359 return 0;
1360 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1361 return 0;
1362 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1363 return 0;
1364
1365 if (filter.family && filter.family != ifa->ifa_family)
1366 return 0;
1367
1368 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1369 return 0;
1370
1371 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1372 return 0;
1373
1374 if (filter.flushb) {
1375 struct nlmsghdr *fn;
1376
1377 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1378 if (flush_update())
1379 return -1;
1380 }
1381 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1382 memcpy(fn, n, n->nlmsg_len);
1383 fn->nlmsg_type = RTM_DELADDR;
1384 fn->nlmsg_flags = NLM_F_REQUEST;
1385 fn->nlmsg_seq = ++rth.seq;
1386 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1387 filter.flushed++;
1388 if (show_stats < 2)
1389 return 0;
1390 }
1391
1392 if (n->nlmsg_type == RTM_DELADDR)
1393 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1394
1395 if (!brief) {
1396 const char *name;
1397
1398 if (filter.oneline || filter.flushb) {
1399 const char *dev = ll_index_to_name(ifa->ifa_index);
1400
1401 if (is_json_context()) {
1402 print_int(PRINT_JSON,
1403 "index", NULL, ifa->ifa_index);
1404 print_string(PRINT_JSON, "dev", NULL, dev);
1405 } else {
1406 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1407 }
1408 }
1409
1410 name = family_name(ifa->ifa_family);
1411 if (*name != '?') {
1412 print_string(PRINT_ANY, "family", " %s ", name);
1413 } else {
1414 print_int(PRINT_ANY, "family_index", " family %d ",
1415 ifa->ifa_family);
1416 }
1417 }
1418
1419 if (rta_tb[IFA_LOCAL]) {
1420 print_color_string(PRINT_ANY,
1421 ifa_family_color(ifa->ifa_family),
1422 "local", "%s",
1423 format_host_rta(ifa->ifa_family,
1424 rta_tb[IFA_LOCAL]));
1425 if (rta_tb[IFA_ADDRESS] &&
1426 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1427 RTA_DATA(rta_tb[IFA_LOCAL]),
1428 ifa->ifa_family == AF_INET ? 4 : 16)) {
1429 print_string(PRINT_FP, NULL, " %s ", "peer");
1430 print_color_string(PRINT_ANY,
1431 ifa_family_color(ifa->ifa_family),
1432 "address",
1433 "%s",
1434 format_host_rta(ifa->ifa_family,
1435 rta_tb[IFA_ADDRESS]));
1436 }
1437 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1438
1439 if (rta_tb[IFA_RT_PRIORITY])
1440 print_uint(PRINT_ANY, "metric", "metric %u ",
1441 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1442 }
1443
1444 if (brief)
1445 goto brief_exit;
1446
1447 if (rta_tb[IFA_BROADCAST]) {
1448 print_string(PRINT_FP, NULL, "%s ", "brd");
1449 print_color_string(PRINT_ANY,
1450 ifa_family_color(ifa->ifa_family),
1451 "broadcast",
1452 "%s ",
1453 format_host_rta(ifa->ifa_family,
1454 rta_tb[IFA_BROADCAST]));
1455 }
1456
1457 if (rta_tb[IFA_ANYCAST]) {
1458 print_string(PRINT_FP, NULL, "%s ", "any");
1459 print_color_string(PRINT_ANY,
1460 ifa_family_color(ifa->ifa_family),
1461 "anycast",
1462 "%s ",
1463 format_host_rta(ifa->ifa_family,
1464 rta_tb[IFA_ANYCAST]));
1465 }
1466
1467 print_string(PRINT_ANY,
1468 "scope",
1469 "scope %s ",
1470 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1471
1472 print_ifa_flags(fp, ifa, ifa_flags);
1473
1474 if (rta_tb[IFA_LABEL])
1475 print_string(PRINT_ANY,
1476 "label",
1477 "%s",
1478 rta_getattr_str(rta_tb[IFA_LABEL]));
1479
1480 if (rta_tb[IFA_CACHEINFO]) {
1481 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1482
1483 print_nl();
1484 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1485
1486 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1487 print_uint(PRINT_JSON,
1488 "valid_life_time",
1489 NULL, INFINITY_LIFE_TIME);
1490 print_string(PRINT_FP, NULL, "%s", "forever");
1491 } else {
1492 print_uint(PRINT_ANY,
1493 "valid_life_time", "%usec", ci->ifa_valid);
1494 }
1495
1496 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1497 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1498 print_uint(PRINT_JSON,
1499 "preferred_life_time",
1500 NULL, INFINITY_LIFE_TIME);
1501 print_string(PRINT_FP, NULL, "%s", "forever");
1502 } else {
1503 if (ifa_flags & IFA_F_DEPRECATED)
1504 print_int(PRINT_ANY,
1505 "preferred_life_time",
1506 "%dsec",
1507 ci->ifa_prefered);
1508 else
1509 print_uint(PRINT_ANY,
1510 "preferred_life_time",
1511 "%usec",
1512 ci->ifa_prefered);
1513 }
1514 }
1515 print_string(PRINT_FP, NULL, "%s", "\n");
1516 brief_exit:
1517 fflush(fp);
1518 return 0;
1519 }
1520
1521 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1522 struct nlmsg_list *ainfo, FILE *fp)
1523 {
1524 open_json_array(PRINT_JSON, "addr_info");
1525 for ( ; ainfo ; ainfo = ainfo->next) {
1526 struct nlmsghdr *n = &ainfo->h;
1527 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1528
1529 if (n->nlmsg_type != RTM_NEWADDR)
1530 continue;
1531
1532 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1533 return -1;
1534
1535 if (ifa->ifa_index != ifi->ifi_index ||
1536 (filter.family && filter.family != ifa->ifa_family))
1537 continue;
1538
1539 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1540 continue;
1541
1542 open_json_object(NULL);
1543 print_addrinfo(n, fp);
1544 close_json_object();
1545 }
1546 close_json_array(PRINT_JSON, NULL);
1547
1548 if (brief) {
1549 print_string(PRINT_FP, NULL, "%s", "\n");
1550 fflush(fp);
1551 }
1552 return 0;
1553 }
1554
1555
1556 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1557 {
1558 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1559 struct nlmsg_list *h;
1560
1561 h = malloc(n->nlmsg_len+sizeof(void *));
1562 if (h == NULL)
1563 return -1;
1564
1565 memcpy(&h->h, n, n->nlmsg_len);
1566 h->next = NULL;
1567
1568 if (lchain->tail)
1569 lchain->tail->next = h;
1570 else
1571 lchain->head = h;
1572 lchain->tail = h;
1573
1574 ll_remember_index(n, NULL);
1575 return 0;
1576 }
1577
1578 static __u32 ipadd_dump_magic = 0x47361222;
1579
1580 static int ipadd_save_prep(void)
1581 {
1582 int ret;
1583
1584 if (isatty(STDOUT_FILENO)) {
1585 fprintf(stderr, "Not sending a binary stream to stdout\n");
1586 return -1;
1587 }
1588
1589 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1590 if (ret != sizeof(ipadd_dump_magic)) {
1591 fprintf(stderr, "Can't write magic to dump file\n");
1592 return -1;
1593 }
1594
1595 return 0;
1596 }
1597
1598 static int ipadd_dump_check_magic(void)
1599 {
1600 int ret;
1601 __u32 magic = 0;
1602
1603 if (isatty(STDIN_FILENO)) {
1604 fprintf(stderr, "Can't restore address dump from a terminal\n");
1605 return -1;
1606 }
1607
1608 ret = fread(&magic, sizeof(magic), 1, stdin);
1609 if (magic != ipadd_dump_magic) {
1610 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1611 return -1;
1612 }
1613
1614 return 0;
1615 }
1616
1617 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1618 {
1619 int ret;
1620
1621 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1622 if ((ret > 0) && (ret != n->nlmsg_len)) {
1623 fprintf(stderr, "Short write while saving nlmsg\n");
1624 ret = -EIO;
1625 }
1626
1627 return ret == n->nlmsg_len ? 0 : ret;
1628 }
1629
1630 static int show_handler(struct rtnl_ctrl_data *ctrl,
1631 struct nlmsghdr *n, void *arg)
1632 {
1633 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1634
1635 open_json_object(NULL);
1636 print_int(PRINT_ANY, "index", "if%d:", ifa->ifa_index);
1637 print_nl();
1638 print_addrinfo(n, stdout);
1639 close_json_object();
1640 return 0;
1641 }
1642
1643 static int ipaddr_showdump(void)
1644 {
1645 int err;
1646
1647 if (ipadd_dump_check_magic())
1648 exit(-1);
1649
1650 new_json_obj(json);
1651 open_json_object(NULL);
1652 open_json_array(PRINT_JSON, "addr_info");
1653
1654 err = rtnl_from_file(stdin, &show_handler, NULL);
1655
1656 close_json_array(PRINT_JSON, NULL);
1657 close_json_object();
1658 delete_json_obj();
1659
1660 exit(err);
1661 }
1662
1663 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1664 struct nlmsghdr *n, void *arg)
1665 {
1666 int ret;
1667
1668 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1669
1670 ll_init_map(&rth);
1671
1672 ret = rtnl_talk(&rth, n, NULL);
1673 if ((ret < 0) && (errno == EEXIST))
1674 ret = 0;
1675
1676 return ret;
1677 }
1678
1679 static int ipaddr_restore(void)
1680 {
1681 if (ipadd_dump_check_magic())
1682 exit(-1);
1683
1684 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1685 }
1686
1687 void free_nlmsg_chain(struct nlmsg_chain *info)
1688 {
1689 struct nlmsg_list *l, *n;
1690
1691 for (l = info->head; l; l = n) {
1692 n = l->next;
1693 free(l);
1694 }
1695 }
1696
1697 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1698 {
1699 struct nlmsg_list *l, **lp;
1700
1701 lp = &linfo->head;
1702 while ((l = *lp) != NULL) {
1703 int ok = 0;
1704 int missing_net_address = 1;
1705 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1706 struct nlmsg_list *a;
1707
1708 for (a = ainfo->head; a; a = a->next) {
1709 struct nlmsghdr *n = &a->h;
1710 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1711 struct rtattr *tb[IFA_MAX + 1];
1712 unsigned int ifa_flags;
1713
1714 if (ifa->ifa_index != ifi->ifi_index)
1715 continue;
1716 missing_net_address = 0;
1717 if (filter.family && filter.family != ifa->ifa_family)
1718 continue;
1719 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1720 continue;
1721
1722 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1723 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1724
1725 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1726 continue;
1727
1728 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1729 continue;
1730
1731 if (!tb[IFA_LOCAL])
1732 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1733 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1734 continue;
1735
1736 ok = 1;
1737 break;
1738 }
1739 if (missing_net_address &&
1740 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1741 ok = 1;
1742 if (!ok) {
1743 *lp = l->next;
1744 free(l);
1745 } else
1746 lp = &l->next;
1747 }
1748 }
1749
1750 static int ipaddr_dump_filter(struct nlmsghdr *nlh, int reqlen)
1751 {
1752 struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
1753
1754 ifa->ifa_index = filter.ifindex;
1755
1756 return 0;
1757 }
1758
1759 static int ipaddr_flush(void)
1760 {
1761 int round = 0;
1762 char flushb[4096-512];
1763
1764 filter.flushb = flushb;
1765 filter.flushp = 0;
1766 filter.flushe = sizeof(flushb);
1767
1768 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1769 if (rtnl_addrdump_req(&rth, filter.family,
1770 ipaddr_dump_filter) < 0) {
1771 perror("Cannot send dump request");
1772 exit(1);
1773 }
1774 filter.flushed = 0;
1775 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1776 stdout, NLM_F_DUMP_INTR) < 0) {
1777 fprintf(stderr, "Flush terminated\n");
1778 exit(1);
1779 }
1780 if (filter.flushed == 0) {
1781 flush_done:
1782 if (show_stats) {
1783 if (round == 0)
1784 printf("Nothing to flush.\n");
1785 else
1786 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1787 }
1788 fflush(stdout);
1789 return 0;
1790 }
1791 round++;
1792 if (flush_update() < 0)
1793 return 1;
1794
1795 if (show_stats) {
1796 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1797 fflush(stdout);
1798 }
1799
1800 /* If we are flushing, and specifying primary, then we
1801 * want to flush only a single round. Otherwise, we'll
1802 * start flushing secondaries that were promoted to
1803 * primaries.
1804 */
1805 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1806 goto flush_done;
1807 }
1808 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1809 fflush(stderr);
1810 return 1;
1811 }
1812
1813 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1814 {
1815 int err;
1816
1817 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1818 if (err)
1819 return err;
1820
1821 if (filter.master) {
1822 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1823 if (err)
1824 return err;
1825 }
1826
1827 if (filter.kind) {
1828 struct rtattr *linkinfo;
1829
1830 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1831
1832 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1833 strlen(filter.kind));
1834 if (err)
1835 return err;
1836
1837 addattr_nest_end(nlh, linkinfo);
1838 }
1839
1840 return 0;
1841 }
1842
1843 static int ipaddr_link_get(int index, struct nlmsg_chain *linfo)
1844 {
1845 struct iplink_req req = {
1846 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
1847 .n.nlmsg_flags = NLM_F_REQUEST,
1848 .n.nlmsg_type = RTM_GETLINK,
1849 .i.ifi_family = filter.family,
1850 .i.ifi_index = index,
1851 };
1852 __u32 filt_mask = RTEXT_FILTER_VF;
1853 struct nlmsghdr *answer;
1854
1855 if (!show_stats)
1856 filt_mask |= RTEXT_FILTER_SKIP_STATS;
1857
1858 addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
1859
1860 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
1861 perror("Cannot send link request");
1862 return 1;
1863 }
1864
1865 if (store_nlmsg(answer, linfo) < 0) {
1866 fprintf(stderr, "Failed to process link information\n");
1867 return 1;
1868 }
1869
1870 return 0;
1871 }
1872
1873 /* fills in linfo with link data and optionally ainfo with address info
1874 * caller can walk lists as desired and must call free_nlmsg_chain for
1875 * both when done
1876 */
1877 int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo)
1878 {
1879 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1880 filter_fn) < 0) {
1881 perror("Cannot send dump request");
1882 return 1;
1883 }
1884
1885 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1886 fprintf(stderr, "Dump terminated\n");
1887 return 1;
1888 }
1889
1890 return 0;
1891 }
1892
1893 static int ip_addr_list(struct nlmsg_chain *ainfo)
1894 {
1895 if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) {
1896 perror("Cannot send dump request");
1897 return 1;
1898 }
1899
1900 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1901 fprintf(stderr, "Dump terminated\n");
1902 return 1;
1903 }
1904
1905 return 0;
1906 }
1907
1908 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1909 {
1910 struct nlmsg_chain linfo = { NULL, NULL};
1911 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = &_ainfo;
1912 struct nlmsg_list *l;
1913 char *filter_dev = NULL;
1914 int no_link = 0;
1915
1916 ipaddr_reset_filter(oneline, 0);
1917 filter.showqueue = 1;
1918 filter.family = preferred_family;
1919
1920 if (action == IPADD_FLUSH) {
1921 if (argc <= 0) {
1922 fprintf(stderr, "Flush requires arguments.\n");
1923
1924 return -1;
1925 }
1926 if (filter.family == AF_PACKET) {
1927 fprintf(stderr, "Cannot flush link addresses.\n");
1928 return -1;
1929 }
1930 }
1931
1932 while (argc > 0) {
1933 if (strcmp(*argv, "to") == 0) {
1934 NEXT_ARG();
1935 if (get_prefix(&filter.pfx, *argv, filter.family))
1936 invarg("invalid \"to\"\n", *argv);
1937 if (filter.family == AF_UNSPEC)
1938 filter.family = filter.pfx.family;
1939 } else if (strcmp(*argv, "scope") == 0) {
1940 unsigned int scope = 0;
1941
1942 NEXT_ARG();
1943 filter.scopemask = -1;
1944 if (rtnl_rtscope_a2n(&scope, *argv)) {
1945 if (strcmp(*argv, "all") != 0)
1946 invarg("invalid \"scope\"\n", *argv);
1947 scope = RT_SCOPE_NOWHERE;
1948 filter.scopemask = 0;
1949 }
1950 filter.scope = scope;
1951 } else if (strcmp(*argv, "up") == 0) {
1952 filter.up = 1;
1953 } else if (get_filter(*argv) == 0) {
1954
1955 } else if (strcmp(*argv, "label") == 0) {
1956 NEXT_ARG();
1957 filter.label = *argv;
1958 } else if (strcmp(*argv, "group") == 0) {
1959 NEXT_ARG();
1960 if (rtnl_group_a2n(&filter.group, *argv))
1961 invarg("Invalid \"group\" value\n", *argv);
1962 } else if (strcmp(*argv, "master") == 0) {
1963 int ifindex;
1964
1965 NEXT_ARG();
1966 ifindex = ll_name_to_index(*argv);
1967 if (!ifindex)
1968 invarg("Device does not exist\n", *argv);
1969 filter.master = ifindex;
1970 } else if (strcmp(*argv, "vrf") == 0) {
1971 int ifindex;
1972
1973 NEXT_ARG();
1974 ifindex = ll_name_to_index(*argv);
1975 if (!ifindex)
1976 invarg("Not a valid VRF name\n", *argv);
1977 if (!name_is_vrf(*argv))
1978 invarg("Not a valid VRF name\n", *argv);
1979 filter.master = ifindex;
1980 } else if (strcmp(*argv, "type") == 0) {
1981 int soff;
1982
1983 NEXT_ARG();
1984 soff = strlen(*argv) - strlen("_slave");
1985 if (!strcmp(*argv + soff, "_slave")) {
1986 (*argv)[soff] = '\0';
1987 filter.slave_kind = *argv;
1988 } else {
1989 filter.kind = *argv;
1990 }
1991 } else {
1992 if (strcmp(*argv, "dev") == 0)
1993 NEXT_ARG();
1994 else if (matches(*argv, "help") == 0)
1995 usage();
1996 if (filter_dev)
1997 duparg2("dev", *argv);
1998 filter_dev = *argv;
1999 }
2000 argv++; argc--;
2001 }
2002
2003 if (filter_dev) {
2004 filter.ifindex = ll_name_to_index(filter_dev);
2005 if (filter.ifindex <= 0) {
2006 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
2007 return -1;
2008 }
2009 }
2010
2011 if (action == IPADD_FLUSH)
2012 return ipaddr_flush();
2013
2014 if (action == IPADD_SAVE) {
2015 if (ipadd_save_prep())
2016 exit(1);
2017
2018 if (rtnl_addrdump_req(&rth, preferred_family,
2019 ipaddr_dump_filter) < 0) {
2020 perror("Cannot send dump request");
2021 exit(1);
2022 }
2023
2024 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
2025 fprintf(stderr, "Save terminated\n");
2026 exit(1);
2027 }
2028
2029 exit(0);
2030 }
2031
2032 /*
2033 * Initialize a json_writer and open an array object
2034 * if -json was specified.
2035 */
2036 new_json_obj(json);
2037
2038 /*
2039 * If only filter_dev present and none of the other
2040 * link filters are present, use RTM_GETLINK to get
2041 * the link device
2042 */
2043 if (filter_dev && filter.group == -1 && do_link == 1) {
2044 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
2045 perror("Cannot send link get request");
2046 delete_json_obj();
2047 exit(1);
2048 }
2049 delete_json_obj();
2050 goto out;
2051 }
2052
2053 if (filter.ifindex) {
2054 if (ipaddr_link_get(filter.ifindex, &linfo) != 0)
2055 goto out;
2056 } else {
2057 if (ip_link_list(iplink_filter_req, &linfo) != 0)
2058 goto out;
2059 }
2060
2061 if (filter.family != AF_PACKET) {
2062 if (filter.oneline)
2063 no_link = 1;
2064
2065 if (ip_addr_list(ainfo) != 0)
2066 goto out;
2067
2068 ipaddr_filter(&linfo, ainfo);
2069 }
2070
2071 for (l = linfo.head; l; l = l->next) {
2072 struct nlmsghdr *n = &l->h;
2073 struct ifinfomsg *ifi = NLMSG_DATA(n);
2074 int res = 0;
2075
2076 open_json_object(NULL);
2077 if (brief || !no_link)
2078 res = print_linkinfo(n, stdout);
2079 if (res >= 0 && filter.family != AF_PACKET)
2080 print_selected_addrinfo(ifi, ainfo->head, stdout);
2081 if (res > 0 && !do_link && show_stats)
2082 print_link_stats(stdout, n);
2083 close_json_object();
2084 }
2085 fflush(stdout);
2086
2087 out:
2088 free_nlmsg_chain(ainfo);
2089 free_nlmsg_chain(&linfo);
2090 delete_json_obj();
2091 return 0;
2092 }
2093
2094 static void
2095 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2096 {
2097 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2098 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2099 struct ifla_vf_rate *vf_rate;
2100 int rem;
2101
2102 rem = RTA_PAYLOAD(vflist);
2103
2104 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2105 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2106
2107 if (!vf[IFLA_VF_RATE]) {
2108 fprintf(stderr, "VF min/max rate API not supported\n");
2109 exit(1);
2110 }
2111
2112 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2113 if (vf_rate->vf == vfnum) {
2114 *min = vf_rate->min_tx_rate;
2115 *max = vf_rate->max_tx_rate;
2116 return;
2117 }
2118 }
2119 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2120 exit(1);
2121 }
2122
2123 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2124 {
2125 struct nlmsg_chain linfo = { NULL, NULL};
2126 struct rtattr *tb[IFLA_MAX+1];
2127 struct ifinfomsg *ifi;
2128 struct nlmsg_list *l;
2129 struct nlmsghdr *n;
2130 int idx, len;
2131
2132 idx = ll_name_to_index(dev);
2133 if (idx == 0) {
2134 fprintf(stderr, "Device %s does not exist\n", dev);
2135 exit(1);
2136 }
2137
2138 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2139 perror("Cannot send dump request");
2140 exit(1);
2141 }
2142 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2143 fprintf(stderr, "Dump terminated\n");
2144 exit(1);
2145 }
2146 for (l = linfo.head; l; l = l->next) {
2147 n = &l->h;
2148 ifi = NLMSG_DATA(n);
2149
2150 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2151 if (len < 0 || (idx && idx != ifi->ifi_index))
2152 continue;
2153
2154 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2155
2156 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2157 ipaddr_loop_each_vf(tb, vfnum, min, max);
2158 return;
2159 }
2160 }
2161 }
2162
2163 int ipaddr_list_link(int argc, char **argv)
2164 {
2165 preferred_family = AF_PACKET;
2166 do_link = 1;
2167 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2168 }
2169
2170 void ipaddr_reset_filter(int oneline, int ifindex)
2171 {
2172 memset(&filter, 0, sizeof(filter));
2173 filter.oneline = oneline;
2174 filter.ifindex = ifindex;
2175 filter.group = -1;
2176 }
2177
2178 static int default_scope(inet_prefix *lcl)
2179 {
2180 if (lcl->family == AF_INET) {
2181 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2182 return RT_SCOPE_HOST;
2183 }
2184 return 0;
2185 }
2186
2187 static bool ipaddr_is_multicast(inet_prefix *a)
2188 {
2189 if (a->family == AF_INET)
2190 return IN_MULTICAST(ntohl(a->data[0]));
2191 else if (a->family == AF_INET6)
2192 return IN6_IS_ADDR_MULTICAST(a->data);
2193 else
2194 return false;
2195 }
2196
2197 static bool is_valid_label(const char *dev, const char *label)
2198 {
2199 size_t len = strlen(dev);
2200
2201 if (strncmp(label, dev, len) != 0)
2202 return false;
2203
2204 return label[len] == '\0' || label[len] == ':';
2205 }
2206
2207 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2208 {
2209 struct {
2210 struct nlmsghdr n;
2211 struct ifaddrmsg ifa;
2212 char buf[256];
2213 } req = {
2214 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2215 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2216 .n.nlmsg_type = cmd,
2217 .ifa.ifa_family = preferred_family,
2218 };
2219 char *d = NULL;
2220 char *l = NULL;
2221 char *lcl_arg = NULL;
2222 char *valid_lftp = NULL;
2223 char *preferred_lftp = NULL;
2224 inet_prefix lcl = {};
2225 inet_prefix peer;
2226 int local_len = 0;
2227 int peer_len = 0;
2228 int brd_len = 0;
2229 int any_len = 0;
2230 int scoped = 0;
2231 __u32 preferred_lft = INFINITY_LIFE_TIME;
2232 __u32 valid_lft = INFINITY_LIFE_TIME;
2233 unsigned int ifa_flags = 0;
2234
2235 while (argc > 0) {
2236 if (strcmp(*argv, "peer") == 0 ||
2237 strcmp(*argv, "remote") == 0) {
2238 NEXT_ARG();
2239
2240 if (peer_len)
2241 duparg("peer", *argv);
2242 get_prefix(&peer, *argv, req.ifa.ifa_family);
2243 peer_len = peer.bytelen;
2244 if (req.ifa.ifa_family == AF_UNSPEC)
2245 req.ifa.ifa_family = peer.family;
2246 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2247 req.ifa.ifa_prefixlen = peer.bitlen;
2248 } else if (matches(*argv, "broadcast") == 0 ||
2249 strcmp(*argv, "brd") == 0) {
2250 inet_prefix addr;
2251
2252 NEXT_ARG();
2253 if (brd_len)
2254 duparg("broadcast", *argv);
2255 if (strcmp(*argv, "+") == 0)
2256 brd_len = -1;
2257 else if (strcmp(*argv, "-") == 0)
2258 brd_len = -2;
2259 else {
2260 get_addr(&addr, *argv, req.ifa.ifa_family);
2261 if (req.ifa.ifa_family == AF_UNSPEC)
2262 req.ifa.ifa_family = addr.family;
2263 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2264 brd_len = addr.bytelen;
2265 }
2266 } else if (strcmp(*argv, "anycast") == 0) {
2267 inet_prefix addr;
2268
2269 NEXT_ARG();
2270 if (any_len)
2271 duparg("anycast", *argv);
2272 get_addr(&addr, *argv, req.ifa.ifa_family);
2273 if (req.ifa.ifa_family == AF_UNSPEC)
2274 req.ifa.ifa_family = addr.family;
2275 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2276 any_len = addr.bytelen;
2277 } else if (strcmp(*argv, "scope") == 0) {
2278 unsigned int scope = 0;
2279
2280 NEXT_ARG();
2281 if (rtnl_rtscope_a2n(&scope, *argv))
2282 invarg("invalid scope value.", *argv);
2283 req.ifa.ifa_scope = scope;
2284 scoped = 1;
2285 } else if (strcmp(*argv, "dev") == 0) {
2286 NEXT_ARG();
2287 d = *argv;
2288 } else if (strcmp(*argv, "label") == 0) {
2289 NEXT_ARG();
2290 l = *argv;
2291 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2292 } else if (matches(*argv, "metric") == 0 ||
2293 matches(*argv, "priority") == 0 ||
2294 matches(*argv, "preference") == 0) {
2295 __u32 metric;
2296
2297 NEXT_ARG();
2298 if (get_u32(&metric, *argv, 0))
2299 invarg("\"metric\" value is invalid\n", *argv);
2300 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2301 } else if (matches(*argv, "valid_lft") == 0) {
2302 if (valid_lftp)
2303 duparg("valid_lft", *argv);
2304 NEXT_ARG();
2305 valid_lftp = *argv;
2306 if (set_lifetime(&valid_lft, *argv))
2307 invarg("valid_lft value", *argv);
2308 } else if (matches(*argv, "preferred_lft") == 0) {
2309 if (preferred_lftp)
2310 duparg("preferred_lft", *argv);
2311 NEXT_ARG();
2312 preferred_lftp = *argv;
2313 if (set_lifetime(&preferred_lft, *argv))
2314 invarg("preferred_lft value", *argv);
2315 } else if (strcmp(*argv, "home") == 0) {
2316 if (req.ifa.ifa_family == AF_INET6)
2317 ifa_flags |= IFA_F_HOMEADDRESS;
2318 else
2319 fprintf(stderr, "Warning: home option can be set only for IPv6 addresses\n");
2320 } else if (strcmp(*argv, "nodad") == 0) {
2321 if (req.ifa.ifa_family == AF_INET6)
2322 ifa_flags |= IFA_F_NODAD;
2323 else
2324 fprintf(stderr, "Warning: nodad option can be set only for IPv6 addresses\n");
2325 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2326 if (req.ifa.ifa_family == AF_INET6)
2327 ifa_flags |= IFA_F_MANAGETEMPADDR;
2328 else
2329 fprintf(stderr, "Warning: mngtmpaddr option can be set only for IPv6 addresses\n");
2330 } else if (strcmp(*argv, "noprefixroute") == 0) {
2331 ifa_flags |= IFA_F_NOPREFIXROUTE;
2332 } else if (strcmp(*argv, "autojoin") == 0) {
2333 ifa_flags |= IFA_F_MCAUTOJOIN;
2334 } else {
2335 if (strcmp(*argv, "local") == 0)
2336 NEXT_ARG();
2337 if (matches(*argv, "help") == 0)
2338 usage();
2339 if (local_len)
2340 duparg2("local", *argv);
2341 lcl_arg = *argv;
2342 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2343 if (req.ifa.ifa_family == AF_UNSPEC)
2344 req.ifa.ifa_family = lcl.family;
2345 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2346 local_len = lcl.bytelen;
2347 }
2348 argc--; argv++;
2349 }
2350 if (ifa_flags <= 0xff)
2351 req.ifa.ifa_flags = ifa_flags;
2352 else
2353 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2354
2355 if (d == NULL) {
2356 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2357 return -1;
2358 }
2359 if (l && !is_valid_label(d, l)) {
2360 fprintf(stderr,
2361 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2362 l, d);
2363 return -1;
2364 }
2365
2366 if (peer_len == 0 && local_len) {
2367 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2368 fprintf(stderr,
2369 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2370 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2371 " This special behaviour is likely to disappear in further releases,\n"
2372 " fix your scripts!\n", lcl_arg, local_len*8);
2373 } else {
2374 peer = lcl;
2375 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2376 }
2377 }
2378 if (req.ifa.ifa_prefixlen == 0)
2379 req.ifa.ifa_prefixlen = lcl.bitlen;
2380
2381 if (brd_len < 0 && cmd != RTM_DELADDR) {
2382 inet_prefix brd;
2383 int i;
2384
2385 if (req.ifa.ifa_family != AF_INET) {
2386 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2387 return -1;
2388 }
2389 brd = peer;
2390 if (brd.bitlen <= 30) {
2391 for (i = 31; i >= brd.bitlen; i--) {
2392 if (brd_len == -1)
2393 brd.data[0] |= htonl(1<<(31-i));
2394 else
2395 brd.data[0] &= ~htonl(1<<(31-i));
2396 }
2397 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2398 brd_len = brd.bytelen;
2399 }
2400 }
2401 if (!scoped && cmd != RTM_DELADDR)
2402 req.ifa.ifa_scope = default_scope(&lcl);
2403
2404 req.ifa.ifa_index = ll_name_to_index(d);
2405 if (!req.ifa.ifa_index)
2406 return nodev(d);
2407
2408 if (valid_lftp || preferred_lftp) {
2409 struct ifa_cacheinfo cinfo = {};
2410
2411 if (!valid_lft) {
2412 fprintf(stderr, "valid_lft is zero\n");
2413 return -1;
2414 }
2415 if (valid_lft < preferred_lft) {
2416 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2417 return -1;
2418 }
2419
2420 cinfo.ifa_prefered = preferred_lft;
2421 cinfo.ifa_valid = valid_lft;
2422 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2423 sizeof(cinfo));
2424 }
2425
2426 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2427 fprintf(stderr, "autojoin needs multicast address\n");
2428 return -1;
2429 }
2430
2431 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2432 return -2;
2433
2434 return 0;
2435 }
2436
2437 int do_ipaddr(int argc, char **argv)
2438 {
2439 if (argc < 1)
2440 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2441 if (matches(*argv, "add") == 0)
2442 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2443 if (matches(*argv, "change") == 0 ||
2444 strcmp(*argv, "chg") == 0)
2445 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2446 if (matches(*argv, "replace") == 0)
2447 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2448 if (matches(*argv, "delete") == 0)
2449 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2450 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2451 || matches(*argv, "lst") == 0)
2452 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2453 if (matches(*argv, "flush") == 0)
2454 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2455 if (matches(*argv, "save") == 0)
2456 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2457 if (matches(*argv, "showdump") == 0)
2458 return ipaddr_showdump();
2459 if (matches(*argv, "restore") == 0)
2460 return ipaddr_restore();
2461 if (matches(*argv, "help") == 0)
2462 usage();
2463 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2464 exit(-1);
2465 }
Upstream mirror of iproute2