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iproute2: ip addr: Add support for setting 'optimistic'
[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 if (tb[IFLA_PERM_ADDRESS]) {
1015 unsigned int len = RTA_PAYLOAD(tb[IFLA_PERM_ADDRESS]);
1016
1017 if (!tb[IFLA_ADDRESS] ||
1018 RTA_PAYLOAD(tb[IFLA_ADDRESS]) != len ||
1019 memcmp(RTA_DATA(tb[IFLA_PERM_ADDRESS]),
1020 RTA_DATA(tb[IFLA_ADDRESS]), len)) {
1021 print_string(PRINT_FP, NULL, " permaddr ", NULL);
1022 print_color_string(PRINT_ANY,
1023 COLOR_MAC,
1024 "permaddr",
1025 "%s",
1026 ll_addr_n2a(RTA_DATA(tb[IFLA_PERM_ADDRESS]),
1027 RTA_PAYLOAD(tb[IFLA_PERM_ADDRESS]),
1028 ifi->ifi_type,
1029 b1, sizeof(b1)));
1030 }
1031 }
1032 }
1033
1034 if (tb[IFLA_LINK_NETNSID]) {
1035 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
1036
1037 if (is_json_context()) {
1038 print_int(PRINT_JSON, "link_netnsid", NULL, id);
1039 } else {
1040 if (id >= 0) {
1041 char *name = get_name_from_nsid(id);
1042
1043 if (name)
1044 print_string(PRINT_FP, NULL,
1045 " link-netns %s", name);
1046 else
1047 print_int(PRINT_FP, NULL,
1048 " link-netnsid %d", id);
1049 } else
1050 print_string(PRINT_FP, NULL,
1051 " link-netnsid %s", "unknown");
1052 }
1053 }
1054
1055 if (tb[IFLA_NEW_NETNSID]) {
1056 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
1057 char *name = get_name_from_nsid(id);
1058
1059 if (name)
1060 print_string(PRINT_FP, NULL, " new-netns %s", name);
1061 else
1062 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
1063 }
1064 if (tb[IFLA_NEW_IFINDEX]) {
1065 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
1066
1067 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1068 }
1069
1070 if (tb[IFLA_PROTO_DOWN]) {
1071 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1072 print_bool(PRINT_ANY,
1073 "proto_down", " protodown on ", true);
1074 }
1075
1076 if (show_details) {
1077 if (tb[IFLA_PROMISCUITY])
1078 print_uint(PRINT_ANY,
1079 "promiscuity",
1080 " promiscuity %u ",
1081 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1082
1083 if (tb[IFLA_MIN_MTU])
1084 print_uint(PRINT_ANY,
1085 "min_mtu", "minmtu %u ",
1086 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1087
1088 if (tb[IFLA_MAX_MTU])
1089 print_uint(PRINT_ANY,
1090 "max_mtu", "maxmtu %u ",
1091 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1092
1093 if (tb[IFLA_LINKINFO])
1094 print_linktype(fp, tb[IFLA_LINKINFO]);
1095
1096 if (do_link && tb[IFLA_AF_SPEC])
1097 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1098
1099 if (tb[IFLA_NUM_TX_QUEUES])
1100 print_uint(PRINT_ANY,
1101 "num_tx_queues",
1102 "numtxqueues %u ",
1103 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1104
1105 if (tb[IFLA_NUM_RX_QUEUES])
1106 print_uint(PRINT_ANY,
1107 "num_rx_queues",
1108 "numrxqueues %u ",
1109 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1110
1111 if (tb[IFLA_GSO_MAX_SIZE])
1112 print_uint(PRINT_ANY,
1113 "gso_max_size",
1114 "gso_max_size %u ",
1115 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1116
1117 if (tb[IFLA_GSO_MAX_SEGS])
1118 print_uint(PRINT_ANY,
1119 "gso_max_segs",
1120 "gso_max_segs %u ",
1121 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1122
1123 if (tb[IFLA_PHYS_PORT_NAME])
1124 print_string(PRINT_ANY,
1125 "phys_port_name",
1126 "portname %s ",
1127 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1128
1129 if (tb[IFLA_PHYS_PORT_ID]) {
1130 print_string(PRINT_ANY,
1131 "phys_port_id",
1132 "portid %s ",
1133 hexstring_n2a(
1134 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1135 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1136 b1, sizeof(b1)));
1137 }
1138
1139 if (tb[IFLA_PHYS_SWITCH_ID]) {
1140 print_string(PRINT_ANY,
1141 "phys_switch_id",
1142 "switchid %s ",
1143 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1144 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1145 b1, sizeof(b1)));
1146 }
1147 }
1148
1149 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1150 print_string(PRINT_FP, NULL, "%s ", _SL_);
1151 print_string(PRINT_ANY,
1152 "ifalias",
1153 "alias %s",
1154 rta_getattr_str(tb[IFLA_IFALIAS]));
1155 }
1156
1157 if ((do_link || show_details) && tb[IFLA_XDP])
1158 xdp_dump(fp, tb[IFLA_XDP], true, true);
1159
1160 if (do_link && show_stats) {
1161 print_nl();
1162 __print_link_stats(fp, tb);
1163 }
1164
1165 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1166 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1167 int rem = RTA_PAYLOAD(vflist);
1168
1169 open_json_array(PRINT_JSON, "vfinfo_list");
1170 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1171 open_json_object(NULL);
1172 print_vfinfo(fp, ifi, i);
1173 close_json_object();
1174 }
1175 close_json_array(PRINT_JSON, NULL);
1176 }
1177
1178 if (tb[IFLA_PROP_LIST]) {
1179 struct rtattr *i, *proplist = tb[IFLA_PROP_LIST];
1180 int rem = RTA_PAYLOAD(proplist);
1181
1182 open_json_array(PRINT_JSON, "altnames");
1183 for (i = RTA_DATA(proplist); RTA_OK(i, rem);
1184 i = RTA_NEXT(i, rem)) {
1185 if (i->rta_type != IFLA_ALT_IFNAME)
1186 continue;
1187 print_string(PRINT_FP, NULL, "%s altname ", _SL_);
1188 print_string(PRINT_ANY, NULL,
1189 "%s", rta_getattr_str(i));
1190 }
1191 close_json_array(PRINT_JSON, NULL);
1192 }
1193
1194 print_string(PRINT_FP, NULL, "%s", "\n");
1195 fflush(fp);
1196 return 1;
1197 }
1198
1199 static int flush_update(void)
1200 {
1201
1202 /*
1203 * Note that the kernel may delete multiple addresses for one
1204 * delete request (e.g. if ipv4 address promotion is disabled).
1205 * Since a flush operation is really a series of delete requests
1206 * its possible that we may request an address delete that has
1207 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1208 * errors returned from a flush request
1209 */
1210 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1211 (errno != EADDRNOTAVAIL)) {
1212 perror("Failed to send flush request");
1213 return -1;
1214 }
1215 filter.flushp = 0;
1216 return 0;
1217 }
1218
1219 static int set_lifetime(unsigned int *lifetime, char *argv)
1220 {
1221 if (strcmp(argv, "forever") == 0)
1222 *lifetime = INFINITY_LIFE_TIME;
1223 else if (get_u32(lifetime, argv, 0))
1224 return -1;
1225
1226 return 0;
1227 }
1228
1229 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1230 struct rtattr *ifa_flags_attr)
1231 {
1232 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1233 ifa->ifa_flags;
1234 }
1235
1236 /* Mapping from argument to address flag mask and attributes */
1237 static const struct ifa_flag_data_t {
1238 const char *name;
1239 unsigned long mask;
1240 bool readonly;
1241 bool v6only;
1242 } ifa_flag_data[] = {
1243 { .name = "secondary", .mask = IFA_F_SECONDARY, .readonly = true, .v6only = false},
1244 { .name = "temporary", .mask = IFA_F_SECONDARY, .readonly = true, .v6only = false},
1245 { .name = "nodad", .mask = IFA_F_NODAD, .readonly = false, .v6only = true},
1246 { .name = "optimistic", .mask = IFA_F_OPTIMISTIC, .readonly = false, .v6only = true},
1247 { .name = "dadfailed", .mask = IFA_F_DADFAILED, .readonly = true, .v6only = true},
1248 { .name = "home", .mask = IFA_F_HOMEADDRESS, .readonly = false, .v6only = true},
1249 { .name = "deprecated", .mask = IFA_F_DEPRECATED, .readonly = true, .v6only = true},
1250 { .name = "tentative", .mask = IFA_F_TENTATIVE, .readonly = true, .v6only = true},
1251 { .name = "permanent", .mask = IFA_F_PERMANENT, .readonly = true, .v6only = true},
1252 { .name = "mngtmpaddr", .mask = IFA_F_MANAGETEMPADDR, .readonly = false, .v6only = true},
1253 { .name = "noprefixroute", .mask = IFA_F_NOPREFIXROUTE, .readonly = false, .v6only = true},
1254 { .name = "autojoin", .mask = IFA_F_MCAUTOJOIN, .readonly = false, .v6only = true},
1255 { .name = "stable-privacy", .mask = IFA_F_STABLE_PRIVACY, .readonly = true, .v6only = true},
1256 };
1257
1258 /* Returns a pointer to the data structure for a particular interface flag, or null if no flag could be found */
1259 static const struct ifa_flag_data_t* lookup_flag_data_by_name(const char* flag_name) {
1260 for (int i = 0; i < ARRAY_SIZE(ifa_flag_data); ++i) {
1261 if (strcmp(flag_name, ifa_flag_data[i].name) == 0)
1262 return &ifa_flag_data[i];
1263 }
1264 return NULL;
1265 }
1266
1267 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1268 unsigned int flags)
1269 {
1270 unsigned int i;
1271
1272 for (i = 0; i < ARRAY_SIZE(ifa_flag_data); i++) {
1273 const struct ifa_flag_data_t* flag_data = &ifa_flag_data[i];
1274
1275 if (flag_data->mask == IFA_F_PERMANENT) {
1276 if (!(flags & flag_data->mask))
1277 print_bool(PRINT_ANY,
1278 "dynamic", "dynamic ", true);
1279 } else if (flags & flag_data->mask) {
1280 if (flag_data->mask == IFA_F_SECONDARY &&
1281 ifa->ifa_family == AF_INET6) {
1282 print_bool(PRINT_ANY,
1283 "temporary", "temporary ", true);
1284 } else {
1285 print_string(PRINT_FP, NULL,
1286 "%s ", flag_data->name);
1287 print_bool(PRINT_JSON,
1288 flag_data->name, NULL, true);
1289 }
1290 }
1291
1292 flags &= ~flag_data->mask;
1293 }
1294
1295 if (flags) {
1296 if (is_json_context()) {
1297 SPRINT_BUF(b1);
1298
1299 snprintf(b1, sizeof(b1), "%02x", flags);
1300 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1301 } else {
1302 fprintf(fp, "flags %02x ", flags);
1303 }
1304 }
1305
1306 }
1307
1308 static int get_filter(const char *arg)
1309 {
1310 bool inv = false;
1311
1312 if (arg[0] == '-') {
1313 inv = true;
1314 arg++;
1315 }
1316
1317 /* Special cases */
1318 if (strcmp(arg, "dynamic") == 0) {
1319 inv = !inv;
1320 arg = "permanent";
1321 } else if (strcmp(arg, "primary") == 0) {
1322 inv = !inv;
1323 arg = "secondary";
1324 }
1325
1326 const struct ifa_flag_data_t* flag_data = lookup_flag_data_by_name(arg);
1327 if (flag_data == NULL)
1328 return -1;
1329
1330 if (inv)
1331 filter.flags &= ~flag_data->mask;
1332 else
1333 filter.flags |= flag_data->mask;
1334 filter.flagmask |= flag_data->mask;
1335 return 0;
1336 }
1337
1338 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1339 {
1340 const char *label;
1341
1342 if (!filter.label)
1343 return 0;
1344
1345 if (rta)
1346 label = RTA_DATA(rta);
1347 else
1348 label = ll_index_to_name(ifindex);
1349
1350 return fnmatch(filter.label, label, 0);
1351 }
1352
1353 int print_addrinfo(struct nlmsghdr *n, void *arg)
1354 {
1355 FILE *fp = arg;
1356 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1357 int len = n->nlmsg_len;
1358 unsigned int ifa_flags;
1359 struct rtattr *rta_tb[IFA_MAX+1];
1360
1361 SPRINT_BUF(b1);
1362
1363 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1364 return 0;
1365 len -= NLMSG_LENGTH(sizeof(*ifa));
1366 if (len < 0) {
1367 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1368 return -1;
1369 }
1370
1371 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1372 return 0;
1373
1374 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1375 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1376
1377 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1378
1379 if (!rta_tb[IFA_LOCAL])
1380 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1381 if (!rta_tb[IFA_ADDRESS])
1382 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1383
1384 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1385 return 0;
1386 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1387 return 0;
1388 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1389 return 0;
1390
1391 if (filter.family && filter.family != ifa->ifa_family)
1392 return 0;
1393
1394 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1395 return 0;
1396
1397 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1398 return 0;
1399
1400 if (filter.flushb) {
1401 struct nlmsghdr *fn;
1402
1403 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1404 if (flush_update())
1405 return -1;
1406 }
1407 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1408 memcpy(fn, n, n->nlmsg_len);
1409 fn->nlmsg_type = RTM_DELADDR;
1410 fn->nlmsg_flags = NLM_F_REQUEST;
1411 fn->nlmsg_seq = ++rth.seq;
1412 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1413 filter.flushed++;
1414 if (show_stats < 2)
1415 return 0;
1416 }
1417
1418 if (n->nlmsg_type == RTM_DELADDR)
1419 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1420
1421 if (!brief) {
1422 const char *name;
1423
1424 if (filter.oneline || filter.flushb) {
1425 const char *dev = ll_index_to_name(ifa->ifa_index);
1426
1427 if (is_json_context()) {
1428 print_int(PRINT_JSON,
1429 "index", NULL, ifa->ifa_index);
1430 print_string(PRINT_JSON, "dev", NULL, dev);
1431 } else {
1432 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1433 }
1434 }
1435
1436 name = family_name(ifa->ifa_family);
1437 if (*name != '?') {
1438 print_string(PRINT_ANY, "family", " %s ", name);
1439 } else {
1440 print_int(PRINT_ANY, "family_index", " family %d ",
1441 ifa->ifa_family);
1442 }
1443 }
1444
1445 if (rta_tb[IFA_LOCAL]) {
1446 print_color_string(PRINT_ANY,
1447 ifa_family_color(ifa->ifa_family),
1448 "local", "%s",
1449 format_host_rta(ifa->ifa_family,
1450 rta_tb[IFA_LOCAL]));
1451 if (rta_tb[IFA_ADDRESS] &&
1452 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1453 RTA_DATA(rta_tb[IFA_LOCAL]),
1454 ifa->ifa_family == AF_INET ? 4 : 16)) {
1455 print_string(PRINT_FP, NULL, " %s ", "peer");
1456 print_color_string(PRINT_ANY,
1457 ifa_family_color(ifa->ifa_family),
1458 "address",
1459 "%s",
1460 format_host_rta(ifa->ifa_family,
1461 rta_tb[IFA_ADDRESS]));
1462 }
1463 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1464
1465 if (rta_tb[IFA_RT_PRIORITY])
1466 print_uint(PRINT_ANY, "metric", "metric %u ",
1467 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1468 }
1469
1470 if (brief)
1471 goto brief_exit;
1472
1473 if (rta_tb[IFA_BROADCAST]) {
1474 print_string(PRINT_FP, NULL, "%s ", "brd");
1475 print_color_string(PRINT_ANY,
1476 ifa_family_color(ifa->ifa_family),
1477 "broadcast",
1478 "%s ",
1479 format_host_rta(ifa->ifa_family,
1480 rta_tb[IFA_BROADCAST]));
1481 }
1482
1483 if (rta_tb[IFA_ANYCAST]) {
1484 print_string(PRINT_FP, NULL, "%s ", "any");
1485 print_color_string(PRINT_ANY,
1486 ifa_family_color(ifa->ifa_family),
1487 "anycast",
1488 "%s ",
1489 format_host_rta(ifa->ifa_family,
1490 rta_tb[IFA_ANYCAST]));
1491 }
1492
1493 print_string(PRINT_ANY,
1494 "scope",
1495 "scope %s ",
1496 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1497
1498 print_ifa_flags(fp, ifa, ifa_flags);
1499
1500 if (rta_tb[IFA_LABEL])
1501 print_string(PRINT_ANY,
1502 "label",
1503 "%s",
1504 rta_getattr_str(rta_tb[IFA_LABEL]));
1505
1506 if (rta_tb[IFA_CACHEINFO]) {
1507 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1508
1509 print_nl();
1510 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1511
1512 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1513 print_uint(PRINT_JSON,
1514 "valid_life_time",
1515 NULL, INFINITY_LIFE_TIME);
1516 print_string(PRINT_FP, NULL, "%s", "forever");
1517 } else {
1518 print_uint(PRINT_ANY,
1519 "valid_life_time", "%usec", ci->ifa_valid);
1520 }
1521
1522 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1523 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1524 print_uint(PRINT_JSON,
1525 "preferred_life_time",
1526 NULL, INFINITY_LIFE_TIME);
1527 print_string(PRINT_FP, NULL, "%s", "forever");
1528 } else {
1529 if (ifa_flags & IFA_F_DEPRECATED)
1530 print_int(PRINT_ANY,
1531 "preferred_life_time",
1532 "%dsec",
1533 ci->ifa_prefered);
1534 else
1535 print_uint(PRINT_ANY,
1536 "preferred_life_time",
1537 "%usec",
1538 ci->ifa_prefered);
1539 }
1540 }
1541 print_string(PRINT_FP, NULL, "%s", "\n");
1542 brief_exit:
1543 fflush(fp);
1544 return 0;
1545 }
1546
1547 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1548 struct nlmsg_list *ainfo, FILE *fp)
1549 {
1550 open_json_array(PRINT_JSON, "addr_info");
1551 for ( ; ainfo ; ainfo = ainfo->next) {
1552 struct nlmsghdr *n = &ainfo->h;
1553 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1554
1555 if (n->nlmsg_type != RTM_NEWADDR)
1556 continue;
1557
1558 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1559 return -1;
1560
1561 if (ifa->ifa_index != ifi->ifi_index ||
1562 (filter.family && filter.family != ifa->ifa_family))
1563 continue;
1564
1565 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1566 continue;
1567
1568 open_json_object(NULL);
1569 print_addrinfo(n, fp);
1570 close_json_object();
1571 }
1572 close_json_array(PRINT_JSON, NULL);
1573
1574 if (brief) {
1575 print_string(PRINT_FP, NULL, "%s", "\n");
1576 fflush(fp);
1577 }
1578 return 0;
1579 }
1580
1581
1582 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1583 {
1584 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1585 struct nlmsg_list *h;
1586
1587 h = malloc(n->nlmsg_len+sizeof(void *));
1588 if (h == NULL)
1589 return -1;
1590
1591 memcpy(&h->h, n, n->nlmsg_len);
1592 h->next = NULL;
1593
1594 if (lchain->tail)
1595 lchain->tail->next = h;
1596 else
1597 lchain->head = h;
1598 lchain->tail = h;
1599
1600 ll_remember_index(n, NULL);
1601 return 0;
1602 }
1603
1604 static __u32 ipadd_dump_magic = 0x47361222;
1605
1606 static int ipadd_save_prep(void)
1607 {
1608 int ret;
1609
1610 if (isatty(STDOUT_FILENO)) {
1611 fprintf(stderr, "Not sending a binary stream to stdout\n");
1612 return -1;
1613 }
1614
1615 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1616 if (ret != sizeof(ipadd_dump_magic)) {
1617 fprintf(stderr, "Can't write magic to dump file\n");
1618 return -1;
1619 }
1620
1621 return 0;
1622 }
1623
1624 static int ipadd_dump_check_magic(void)
1625 {
1626 int ret;
1627 __u32 magic = 0;
1628
1629 if (isatty(STDIN_FILENO)) {
1630 fprintf(stderr, "Can't restore address dump from a terminal\n");
1631 return -1;
1632 }
1633
1634 ret = fread(&magic, sizeof(magic), 1, stdin);
1635 if (magic != ipadd_dump_magic) {
1636 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1637 return -1;
1638 }
1639
1640 return 0;
1641 }
1642
1643 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1644 {
1645 int ret;
1646
1647 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1648 if ((ret > 0) && (ret != n->nlmsg_len)) {
1649 fprintf(stderr, "Short write while saving nlmsg\n");
1650 ret = -EIO;
1651 }
1652
1653 return ret == n->nlmsg_len ? 0 : ret;
1654 }
1655
1656 static int show_handler(struct rtnl_ctrl_data *ctrl,
1657 struct nlmsghdr *n, void *arg)
1658 {
1659 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1660
1661 open_json_object(NULL);
1662 print_int(PRINT_ANY, "index", "if%d:", ifa->ifa_index);
1663 print_nl();
1664 print_addrinfo(n, stdout);
1665 close_json_object();
1666 return 0;
1667 }
1668
1669 static int ipaddr_showdump(void)
1670 {
1671 int err;
1672
1673 if (ipadd_dump_check_magic())
1674 exit(-1);
1675
1676 new_json_obj(json);
1677 open_json_object(NULL);
1678 open_json_array(PRINT_JSON, "addr_info");
1679
1680 err = rtnl_from_file(stdin, &show_handler, NULL);
1681
1682 close_json_array(PRINT_JSON, NULL);
1683 close_json_object();
1684 delete_json_obj();
1685
1686 exit(err);
1687 }
1688
1689 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1690 struct nlmsghdr *n, void *arg)
1691 {
1692 int ret;
1693
1694 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1695
1696 ll_init_map(&rth);
1697
1698 ret = rtnl_talk(&rth, n, NULL);
1699 if ((ret < 0) && (errno == EEXIST))
1700 ret = 0;
1701
1702 return ret;
1703 }
1704
1705 static int ipaddr_restore(void)
1706 {
1707 if (ipadd_dump_check_magic())
1708 exit(-1);
1709
1710 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1711 }
1712
1713 void free_nlmsg_chain(struct nlmsg_chain *info)
1714 {
1715 struct nlmsg_list *l, *n;
1716
1717 for (l = info->head; l; l = n) {
1718 n = l->next;
1719 free(l);
1720 }
1721 }
1722
1723 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1724 {
1725 struct nlmsg_list *l, **lp;
1726
1727 lp = &linfo->head;
1728 while ((l = *lp) != NULL) {
1729 int ok = 0;
1730 int missing_net_address = 1;
1731 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1732 struct nlmsg_list *a;
1733
1734 for (a = ainfo->head; a; a = a->next) {
1735 struct nlmsghdr *n = &a->h;
1736 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1737 struct rtattr *tb[IFA_MAX + 1];
1738 unsigned int ifa_flags;
1739
1740 if (ifa->ifa_index != ifi->ifi_index)
1741 continue;
1742 missing_net_address = 0;
1743 if (filter.family && filter.family != ifa->ifa_family)
1744 continue;
1745 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1746 continue;
1747
1748 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1749 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1750
1751 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1752 continue;
1753
1754 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1755 continue;
1756
1757 if (!tb[IFA_LOCAL])
1758 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1759 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1760 continue;
1761
1762 ok = 1;
1763 break;
1764 }
1765 if (missing_net_address &&
1766 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1767 ok = 1;
1768 if (!ok) {
1769 *lp = l->next;
1770 free(l);
1771 } else
1772 lp = &l->next;
1773 }
1774 }
1775
1776 static int ipaddr_dump_filter(struct nlmsghdr *nlh, int reqlen)
1777 {
1778 struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
1779
1780 ifa->ifa_index = filter.ifindex;
1781
1782 return 0;
1783 }
1784
1785 static int ipaddr_flush(void)
1786 {
1787 int round = 0;
1788 char flushb[4096-512];
1789
1790 filter.flushb = flushb;
1791 filter.flushp = 0;
1792 filter.flushe = sizeof(flushb);
1793
1794 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1795 if (rtnl_addrdump_req(&rth, filter.family,
1796 ipaddr_dump_filter) < 0) {
1797 perror("Cannot send dump request");
1798 exit(1);
1799 }
1800 filter.flushed = 0;
1801 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1802 stdout, NLM_F_DUMP_INTR) < 0) {
1803 fprintf(stderr, "Flush terminated\n");
1804 exit(1);
1805 }
1806 if (filter.flushed == 0) {
1807 flush_done:
1808 if (show_stats) {
1809 if (round == 0)
1810 printf("Nothing to flush.\n");
1811 else
1812 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1813 }
1814 fflush(stdout);
1815 return 0;
1816 }
1817 round++;
1818 if (flush_update() < 0)
1819 return 1;
1820
1821 if (show_stats) {
1822 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1823 fflush(stdout);
1824 }
1825
1826 /* If we are flushing, and specifying primary, then we
1827 * want to flush only a single round. Otherwise, we'll
1828 * start flushing secondaries that were promoted to
1829 * primaries.
1830 */
1831 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1832 goto flush_done;
1833 }
1834 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1835 fflush(stderr);
1836 return 1;
1837 }
1838
1839 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1840 {
1841 int err;
1842
1843 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1844 if (err)
1845 return err;
1846
1847 if (filter.master) {
1848 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1849 if (err)
1850 return err;
1851 }
1852
1853 if (filter.kind) {
1854 struct rtattr *linkinfo;
1855
1856 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1857
1858 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1859 strlen(filter.kind));
1860 if (err)
1861 return err;
1862
1863 addattr_nest_end(nlh, linkinfo);
1864 }
1865
1866 return 0;
1867 }
1868
1869 static int ipaddr_link_get(int index, struct nlmsg_chain *linfo)
1870 {
1871 struct iplink_req req = {
1872 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
1873 .n.nlmsg_flags = NLM_F_REQUEST,
1874 .n.nlmsg_type = RTM_GETLINK,
1875 .i.ifi_family = filter.family,
1876 .i.ifi_index = index,
1877 };
1878 __u32 filt_mask = RTEXT_FILTER_VF;
1879 struct nlmsghdr *answer;
1880
1881 if (!show_stats)
1882 filt_mask |= RTEXT_FILTER_SKIP_STATS;
1883
1884 addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
1885
1886 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
1887 perror("Cannot send link request");
1888 return 1;
1889 }
1890
1891 if (store_nlmsg(answer, linfo) < 0) {
1892 fprintf(stderr, "Failed to process link information\n");
1893 return 1;
1894 }
1895
1896 return 0;
1897 }
1898
1899 /* fills in linfo with link data and optionally ainfo with address info
1900 * caller can walk lists as desired and must call free_nlmsg_chain for
1901 * both when done
1902 */
1903 int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo)
1904 {
1905 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1906 filter_fn) < 0) {
1907 perror("Cannot send dump request");
1908 return 1;
1909 }
1910
1911 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1912 fprintf(stderr, "Dump terminated\n");
1913 return 1;
1914 }
1915
1916 return 0;
1917 }
1918
1919 static int ip_addr_list(struct nlmsg_chain *ainfo)
1920 {
1921 if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) {
1922 perror("Cannot send dump request");
1923 return 1;
1924 }
1925
1926 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1927 fprintf(stderr, "Dump terminated\n");
1928 return 1;
1929 }
1930
1931 return 0;
1932 }
1933
1934 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1935 {
1936 struct nlmsg_chain linfo = { NULL, NULL};
1937 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = &_ainfo;
1938 struct nlmsg_list *l;
1939 char *filter_dev = NULL;
1940 int no_link = 0;
1941
1942 ipaddr_reset_filter(oneline, 0);
1943 filter.showqueue = 1;
1944 filter.family = preferred_family;
1945
1946 if (action == IPADD_FLUSH) {
1947 if (argc <= 0) {
1948 fprintf(stderr, "Flush requires arguments.\n");
1949
1950 return -1;
1951 }
1952 if (filter.family == AF_PACKET) {
1953 fprintf(stderr, "Cannot flush link addresses.\n");
1954 return -1;
1955 }
1956 }
1957
1958 while (argc > 0) {
1959 if (strcmp(*argv, "to") == 0) {
1960 NEXT_ARG();
1961 if (get_prefix(&filter.pfx, *argv, filter.family))
1962 invarg("invalid \"to\"\n", *argv);
1963 if (filter.family == AF_UNSPEC)
1964 filter.family = filter.pfx.family;
1965 } else if (strcmp(*argv, "scope") == 0) {
1966 unsigned int scope = 0;
1967
1968 NEXT_ARG();
1969 filter.scopemask = -1;
1970 if (rtnl_rtscope_a2n(&scope, *argv)) {
1971 if (strcmp(*argv, "all") != 0)
1972 invarg("invalid \"scope\"\n", *argv);
1973 scope = RT_SCOPE_NOWHERE;
1974 filter.scopemask = 0;
1975 }
1976 filter.scope = scope;
1977 } else if (strcmp(*argv, "up") == 0) {
1978 filter.up = 1;
1979 } else if (get_filter(*argv) == 0) {
1980
1981 } else if (strcmp(*argv, "label") == 0) {
1982 NEXT_ARG();
1983 filter.label = *argv;
1984 } else if (strcmp(*argv, "group") == 0) {
1985 NEXT_ARG();
1986 if (rtnl_group_a2n(&filter.group, *argv))
1987 invarg("Invalid \"group\" value\n", *argv);
1988 } else if (strcmp(*argv, "master") == 0) {
1989 int ifindex;
1990
1991 NEXT_ARG();
1992 ifindex = ll_name_to_index(*argv);
1993 if (!ifindex)
1994 invarg("Device does not exist\n", *argv);
1995 filter.master = ifindex;
1996 } else if (strcmp(*argv, "vrf") == 0) {
1997 int ifindex;
1998
1999 NEXT_ARG();
2000 ifindex = ll_name_to_index(*argv);
2001 if (!ifindex)
2002 invarg("Not a valid VRF name\n", *argv);
2003 if (!name_is_vrf(*argv))
2004 invarg("Not a valid VRF name\n", *argv);
2005 filter.master = ifindex;
2006 } else if (strcmp(*argv, "type") == 0) {
2007 int soff;
2008
2009 NEXT_ARG();
2010 soff = strlen(*argv) - strlen("_slave");
2011 if (!strcmp(*argv + soff, "_slave")) {
2012 (*argv)[soff] = '\0';
2013 filter.slave_kind = *argv;
2014 } else {
2015 filter.kind = *argv;
2016 }
2017 } else {
2018 if (strcmp(*argv, "dev") == 0)
2019 NEXT_ARG();
2020 else if (matches(*argv, "help") == 0)
2021 usage();
2022 if (filter_dev)
2023 duparg2("dev", *argv);
2024 filter_dev = *argv;
2025 }
2026 argv++; argc--;
2027 }
2028
2029 if (filter_dev) {
2030 filter.ifindex = ll_name_to_index(filter_dev);
2031 if (filter.ifindex <= 0) {
2032 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
2033 return -1;
2034 }
2035 }
2036
2037 if (action == IPADD_FLUSH)
2038 return ipaddr_flush();
2039
2040 if (action == IPADD_SAVE) {
2041 if (ipadd_save_prep())
2042 exit(1);
2043
2044 if (rtnl_addrdump_req(&rth, preferred_family,
2045 ipaddr_dump_filter) < 0) {
2046 perror("Cannot send dump request");
2047 exit(1);
2048 }
2049
2050 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
2051 fprintf(stderr, "Save terminated\n");
2052 exit(1);
2053 }
2054
2055 exit(0);
2056 }
2057
2058 /*
2059 * Initialize a json_writer and open an array object
2060 * if -json was specified.
2061 */
2062 new_json_obj(json);
2063
2064 /*
2065 * If only filter_dev present and none of the other
2066 * link filters are present, use RTM_GETLINK to get
2067 * the link device
2068 */
2069 if (filter_dev && filter.group == -1 && do_link == 1) {
2070 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
2071 perror("Cannot send link get request");
2072 delete_json_obj();
2073 exit(1);
2074 }
2075 delete_json_obj();
2076 goto out;
2077 }
2078
2079 if (filter.ifindex) {
2080 if (ipaddr_link_get(filter.ifindex, &linfo) != 0)
2081 goto out;
2082 } else {
2083 if (ip_link_list(iplink_filter_req, &linfo) != 0)
2084 goto out;
2085 }
2086
2087 if (filter.family != AF_PACKET) {
2088 if (filter.oneline)
2089 no_link = 1;
2090
2091 if (ip_addr_list(ainfo) != 0)
2092 goto out;
2093
2094 ipaddr_filter(&linfo, ainfo);
2095 }
2096
2097 for (l = linfo.head; l; l = l->next) {
2098 struct nlmsghdr *n = &l->h;
2099 struct ifinfomsg *ifi = NLMSG_DATA(n);
2100 int res = 0;
2101
2102 open_json_object(NULL);
2103 if (brief || !no_link)
2104 res = print_linkinfo(n, stdout);
2105 if (res >= 0 && filter.family != AF_PACKET)
2106 print_selected_addrinfo(ifi, ainfo->head, stdout);
2107 if (res > 0 && !do_link && show_stats)
2108 print_link_stats(stdout, n);
2109 close_json_object();
2110 }
2111 fflush(stdout);
2112
2113 out:
2114 free_nlmsg_chain(ainfo);
2115 free_nlmsg_chain(&linfo);
2116 delete_json_obj();
2117 return 0;
2118 }
2119
2120 static void
2121 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2122 {
2123 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2124 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2125 struct ifla_vf_rate *vf_rate;
2126 int rem;
2127
2128 rem = RTA_PAYLOAD(vflist);
2129
2130 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2131 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2132
2133 if (!vf[IFLA_VF_RATE]) {
2134 fprintf(stderr, "VF min/max rate API not supported\n");
2135 exit(1);
2136 }
2137
2138 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2139 if (vf_rate->vf == vfnum) {
2140 *min = vf_rate->min_tx_rate;
2141 *max = vf_rate->max_tx_rate;
2142 return;
2143 }
2144 }
2145 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2146 exit(1);
2147 }
2148
2149 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2150 {
2151 struct nlmsg_chain linfo = { NULL, NULL};
2152 struct rtattr *tb[IFLA_MAX+1];
2153 struct ifinfomsg *ifi;
2154 struct nlmsg_list *l;
2155 struct nlmsghdr *n;
2156 int idx, len;
2157
2158 idx = ll_name_to_index(dev);
2159 if (idx == 0) {
2160 fprintf(stderr, "Device %s does not exist\n", dev);
2161 exit(1);
2162 }
2163
2164 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2165 perror("Cannot send dump request");
2166 exit(1);
2167 }
2168 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2169 fprintf(stderr, "Dump terminated\n");
2170 exit(1);
2171 }
2172 for (l = linfo.head; l; l = l->next) {
2173 n = &l->h;
2174 ifi = NLMSG_DATA(n);
2175
2176 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2177 if (len < 0 || (idx && idx != ifi->ifi_index))
2178 continue;
2179
2180 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2181
2182 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2183 ipaddr_loop_each_vf(tb, vfnum, min, max);
2184 return;
2185 }
2186 }
2187 }
2188
2189 int ipaddr_list_link(int argc, char **argv)
2190 {
2191 preferred_family = AF_PACKET;
2192 do_link = 1;
2193 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2194 }
2195
2196 void ipaddr_reset_filter(int oneline, int ifindex)
2197 {
2198 memset(&filter, 0, sizeof(filter));
2199 filter.oneline = oneline;
2200 filter.ifindex = ifindex;
2201 filter.group = -1;
2202 }
2203
2204 static int default_scope(inet_prefix *lcl)
2205 {
2206 if (lcl->family == AF_INET) {
2207 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2208 return RT_SCOPE_HOST;
2209 }
2210 return 0;
2211 }
2212
2213 static bool ipaddr_is_multicast(inet_prefix *a)
2214 {
2215 if (a->family == AF_INET)
2216 return IN_MULTICAST(ntohl(a->data[0]));
2217 else if (a->family == AF_INET6)
2218 return IN6_IS_ADDR_MULTICAST(a->data);
2219 else
2220 return false;
2221 }
2222
2223 static bool is_valid_label(const char *dev, const char *label)
2224 {
2225 size_t len = strlen(dev);
2226
2227 if (strncmp(label, dev, len) != 0)
2228 return false;
2229
2230 return label[len] == '\0' || label[len] == ':';
2231 }
2232
2233 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2234 {
2235 struct {
2236 struct nlmsghdr n;
2237 struct ifaddrmsg ifa;
2238 char buf[256];
2239 } req = {
2240 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2241 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2242 .n.nlmsg_type = cmd,
2243 .ifa.ifa_family = preferred_family,
2244 };
2245 char *d = NULL;
2246 char *l = NULL;
2247 char *lcl_arg = NULL;
2248 char *valid_lftp = NULL;
2249 char *preferred_lftp = NULL;
2250 inet_prefix lcl = {};
2251 inet_prefix peer;
2252 int local_len = 0;
2253 int peer_len = 0;
2254 int brd_len = 0;
2255 int any_len = 0;
2256 int scoped = 0;
2257 __u32 preferred_lft = INFINITY_LIFE_TIME;
2258 __u32 valid_lft = INFINITY_LIFE_TIME;
2259 unsigned int ifa_flags = 0;
2260
2261 while (argc > 0) {
2262 if (strcmp(*argv, "peer") == 0 ||
2263 strcmp(*argv, "remote") == 0) {
2264 NEXT_ARG();
2265
2266 if (peer_len)
2267 duparg("peer", *argv);
2268 get_prefix(&peer, *argv, req.ifa.ifa_family);
2269 peer_len = peer.bytelen;
2270 if (req.ifa.ifa_family == AF_UNSPEC)
2271 req.ifa.ifa_family = peer.family;
2272 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2273 req.ifa.ifa_prefixlen = peer.bitlen;
2274 } else if (matches(*argv, "broadcast") == 0 ||
2275 strcmp(*argv, "brd") == 0) {
2276 inet_prefix addr;
2277
2278 NEXT_ARG();
2279 if (brd_len)
2280 duparg("broadcast", *argv);
2281 if (strcmp(*argv, "+") == 0)
2282 brd_len = -1;
2283 else if (strcmp(*argv, "-") == 0)
2284 brd_len = -2;
2285 else {
2286 get_addr(&addr, *argv, req.ifa.ifa_family);
2287 if (req.ifa.ifa_family == AF_UNSPEC)
2288 req.ifa.ifa_family = addr.family;
2289 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2290 brd_len = addr.bytelen;
2291 }
2292 } else if (strcmp(*argv, "anycast") == 0) {
2293 inet_prefix addr;
2294
2295 NEXT_ARG();
2296 if (any_len)
2297 duparg("anycast", *argv);
2298 get_addr(&addr, *argv, req.ifa.ifa_family);
2299 if (req.ifa.ifa_family == AF_UNSPEC)
2300 req.ifa.ifa_family = addr.family;
2301 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2302 any_len = addr.bytelen;
2303 } else if (strcmp(*argv, "scope") == 0) {
2304 unsigned int scope = 0;
2305
2306 NEXT_ARG();
2307 if (rtnl_rtscope_a2n(&scope, *argv))
2308 invarg("invalid scope value.", *argv);
2309 req.ifa.ifa_scope = scope;
2310 scoped = 1;
2311 } else if (strcmp(*argv, "dev") == 0) {
2312 NEXT_ARG();
2313 d = *argv;
2314 } else if (strcmp(*argv, "label") == 0) {
2315 NEXT_ARG();
2316 l = *argv;
2317 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2318 } else if (matches(*argv, "metric") == 0 ||
2319 matches(*argv, "priority") == 0 ||
2320 matches(*argv, "preference") == 0) {
2321 __u32 metric;
2322
2323 NEXT_ARG();
2324 if (get_u32(&metric, *argv, 0))
2325 invarg("\"metric\" value is invalid\n", *argv);
2326 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2327 } else if (matches(*argv, "valid_lft") == 0) {
2328 if (valid_lftp)
2329 duparg("valid_lft", *argv);
2330 NEXT_ARG();
2331 valid_lftp = *argv;
2332 if (set_lifetime(&valid_lft, *argv))
2333 invarg("valid_lft value", *argv);
2334 } else if (matches(*argv, "preferred_lft") == 0) {
2335 if (preferred_lftp)
2336 duparg("preferred_lft", *argv);
2337 NEXT_ARG();
2338 preferred_lftp = *argv;
2339 if (set_lifetime(&preferred_lft, *argv))
2340 invarg("preferred_lft value", *argv);
2341 } else if (lookup_flag_data_by_name(*argv)) {
2342 const struct ifa_flag_data_t* flag_data = lookup_flag_data_by_name(*argv);
2343 if (flag_data->readonly) {
2344 fprintf(stderr, "Warning: %s option is not mutable from userspace\n", flag_data->name);
2345 } else if (flag_data->v6only && req.ifa.ifa_family != AF_INET6) {
2346 fprintf(stderr, "Warning: %s option can be set only for IPv6 addresses\n", flag_data->name);
2347 } else {
2348 ifa_flags |= flag_data->mask;
2349 }
2350 } else {
2351 if (strcmp(*argv, "local") == 0)
2352 NEXT_ARG();
2353 if (matches(*argv, "help") == 0)
2354 usage();
2355 if (local_len)
2356 duparg2("local", *argv);
2357 lcl_arg = *argv;
2358 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2359 if (req.ifa.ifa_family == AF_UNSPEC)
2360 req.ifa.ifa_family = lcl.family;
2361 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2362 local_len = lcl.bytelen;
2363 }
2364 argc--; argv++;
2365 }
2366 if (ifa_flags <= 0xff)
2367 req.ifa.ifa_flags = ifa_flags;
2368 else
2369 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2370
2371 if (d == NULL) {
2372 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2373 return -1;
2374 }
2375 if (l && !is_valid_label(d, l)) {
2376 fprintf(stderr,
2377 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2378 l, d);
2379 return -1;
2380 }
2381
2382 if (peer_len == 0 && local_len) {
2383 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2384 fprintf(stderr,
2385 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2386 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2387 " This special behaviour is likely to disappear in further releases,\n"
2388 " fix your scripts!\n", lcl_arg, local_len*8);
2389 } else {
2390 peer = lcl;
2391 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2392 }
2393 }
2394 if (req.ifa.ifa_prefixlen == 0)
2395 req.ifa.ifa_prefixlen = lcl.bitlen;
2396
2397 if (brd_len < 0 && cmd != RTM_DELADDR) {
2398 inet_prefix brd;
2399 int i;
2400
2401 if (req.ifa.ifa_family != AF_INET) {
2402 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2403 return -1;
2404 }
2405 brd = peer;
2406 if (brd.bitlen <= 30) {
2407 for (i = 31; i >= brd.bitlen; i--) {
2408 if (brd_len == -1)
2409 brd.data[0] |= htonl(1<<(31-i));
2410 else
2411 brd.data[0] &= ~htonl(1<<(31-i));
2412 }
2413 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2414 brd_len = brd.bytelen;
2415 }
2416 }
2417 if (!scoped && cmd != RTM_DELADDR)
2418 req.ifa.ifa_scope = default_scope(&lcl);
2419
2420 req.ifa.ifa_index = ll_name_to_index(d);
2421 if (!req.ifa.ifa_index)
2422 return nodev(d);
2423
2424 if (valid_lftp || preferred_lftp) {
2425 struct ifa_cacheinfo cinfo = {};
2426
2427 if (!valid_lft) {
2428 fprintf(stderr, "valid_lft is zero\n");
2429 return -1;
2430 }
2431 if (valid_lft < preferred_lft) {
2432 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2433 return -1;
2434 }
2435
2436 cinfo.ifa_prefered = preferred_lft;
2437 cinfo.ifa_valid = valid_lft;
2438 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2439 sizeof(cinfo));
2440 }
2441
2442 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2443 fprintf(stderr, "autojoin needs multicast address\n");
2444 return -1;
2445 }
2446
2447 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2448 return -2;
2449
2450 return 0;
2451 }
2452
2453 int do_ipaddr(int argc, char **argv)
2454 {
2455 if (argc < 1)
2456 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2457 if (matches(*argv, "add") == 0)
2458 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2459 if (matches(*argv, "change") == 0 ||
2460 strcmp(*argv, "chg") == 0)
2461 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2462 if (matches(*argv, "replace") == 0)
2463 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2464 if (matches(*argv, "delete") == 0)
2465 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2466 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2467 || matches(*argv, "lst") == 0)
2468 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2469 if (matches(*argv, "flush") == 0)
2470 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2471 if (matches(*argv, "save") == 0)
2472 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2473 if (matches(*argv, "showdump") == 0)
2474 return ipaddr_showdump();
2475 if (matches(*argv, "restore") == 0)
2476 return ipaddr_restore();
2477 if (matches(*argv, "help") == 0)
2478 usage();
2479 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2480 exit(-1);
2481 }
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