]> git.proxmox.com Git - mirror_iproute2.git/blob - ip/ipaddress.c
projects / mirror_iproute2.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
ip: add support for alternative name addition/deletion/list
[mirror_iproute2.git] / ip / ipaddress.c
1 /*
2 * ipaddress.c "ip address".
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 *
11 */
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include <inttypes.h>
17 #include <fcntl.h>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/param.h>
21 #include <errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
24 #include <string.h>
25 #include <fnmatch.h>
26
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/if_infiniband.h>
30 #include <linux/sockios.h>
31 #include <linux/net_namespace.h>
32
33 #include "utils.h"
34 #include "rt_names.h"
35 #include "utils.h"
36 #include "ll_map.h"
37 #include "ip_common.h"
38 #include "color.h"
39
40 enum {
41 IPADD_LIST,
42 IPADD_FLUSH,
43 IPADD_SAVE,
44 };
45
46 static struct link_filter filter;
47 static int do_link;
48
49 static void usage(void) __attribute__((noreturn));
50
51 static void usage(void)
52 {
53 if (do_link)
54 iplink_usage();
55
56 fprintf(stderr,
57 "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n"
58 " [ CONFFLAG-LIST ]\n"
59 " ip address del IFADDR dev IFNAME [mngtmpaddr]\n"
60 " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n"
61 " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n"
62 " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n"
63 " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n"
64 " [ label LABEL ] [up] [ vrf NAME ] ]\n"
65 " ip address {showdump|restore}\n"
66 "IFADDR := PREFIX | ADDR peer PREFIX\n"
67 " [ broadcast ADDR ] [ anycast ADDR ]\n"
68 " [ label IFNAME ] [ scope SCOPE-ID ] [ metric METRIC ]\n"
69 "SCOPE-ID := [ host | link | global | NUMBER ]\n"
70 "FLAG-LIST := [ FLAG-LIST ] FLAG\n"
71 "FLAG := [ permanent | dynamic | secondary | primary |\n"
72 " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n"
73 " CONFFLAG-LIST ]\n"
74 "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n"
75 "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n"
76 "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n"
77 "LFT := forever | SECONDS\n"
78 "TYPE := { vlan | veth | vcan | vxcan | dummy | ifb | macvlan | macvtap |\n"
79 " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | lowpan |\n"
80 " gre | gretap | erspan | ip6gre | ip6gretap | ip6erspan | vti |\n"
81 " nlmon | can | bond_slave | ipvlan | geneve | bridge_slave |\n"
82 " hsr | macsec | netdevsim }\n");
83
84 exit(-1);
85 }
86
87 static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown)
88 {
89 open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
90 if (flags & IFF_UP && !(flags & IFF_RUNNING))
91 print_string(PRINT_ANY, NULL,
92 flags ? "%s," : "%s", "NO-CARRIER");
93 flags &= ~IFF_RUNNING;
94 #define _PF(f) if (flags&IFF_##f) { \
95 flags &= ~IFF_##f ; \
96 print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); }
97 _PF(LOOPBACK);
98 _PF(BROADCAST);
99 _PF(POINTOPOINT);
100 _PF(MULTICAST);
101 _PF(NOARP);
102 _PF(ALLMULTI);
103 _PF(PROMISC);
104 _PF(MASTER);
105 _PF(SLAVE);
106 _PF(DEBUG);
107 _PF(DYNAMIC);
108 _PF(AUTOMEDIA);
109 _PF(PORTSEL);
110 _PF(NOTRAILERS);
111 _PF(UP);
112 _PF(LOWER_UP);
113 _PF(DORMANT);
114 _PF(ECHO);
115 #undef _PF
116 if (flags)
117 print_hex(PRINT_ANY, NULL, "%x", flags);
118 if (mdown)
119 print_string(PRINT_ANY, NULL, ",%s", "M-DOWN");
120 close_json_array(PRINT_ANY, "> ");
121 }
122
123 static const char *oper_states[] = {
124 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
125 "TESTING", "DORMANT", "UP"
126 };
127
128 static void print_operstate(FILE *f, __u8 state)
129 {
130 if (state >= ARRAY_SIZE(oper_states)) {
131 if (is_json_context())
132 print_uint(PRINT_JSON, "operstate_index", NULL, state);
133 else
134 print_0xhex(PRINT_FP, NULL, "state %#llx", state);
135 } else if (brief) {
136 print_color_string(PRINT_ANY,
137 oper_state_color(state),
138 "operstate",
139 "%-14s ",
140 oper_states[state]);
141 } else {
142 if (is_json_context())
143 print_string(PRINT_JSON,
144 "operstate",
145 NULL, oper_states[state]);
146 else {
147 fprintf(f, "state ");
148 color_fprintf(f, oper_state_color(state),
149 "%s ", oper_states[state]);
150 }
151 }
152 }
153
154 int get_operstate(const char *name)
155 {
156 int i;
157
158 for (i = 0; i < ARRAY_SIZE(oper_states); i++)
159 if (strcasecmp(name, oper_states[i]) == 0)
160 return i;
161 return -1;
162 }
163
164 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
165 {
166 int qlen;
167
168 if (tb[IFLA_TXQLEN])
169 qlen = rta_getattr_u32(tb[IFLA_TXQLEN]);
170 else {
171 struct ifreq ifr = {};
172 int s = socket(AF_INET, SOCK_STREAM, 0);
173
174 if (s < 0)
175 return;
176
177 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
178 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
179 fprintf(stderr,
180 "ioctl(SIOCGIFTXQLEN) failed: %s\n",
181 strerror(errno));
182 close(s);
183 return;
184 }
185 close(s);
186 qlen = ifr.ifr_qlen;
187 }
188 if (qlen)
189 print_int(PRINT_ANY, "txqlen", "qlen %d", qlen);
190 }
191
192 static const char *link_modes[] = {
193 "DEFAULT", "DORMANT"
194 };
195
196 static void print_linkmode(FILE *f, struct rtattr *tb)
197 {
198 unsigned int mode = rta_getattr_u8(tb);
199
200 if (mode >= ARRAY_SIZE(link_modes))
201 print_int(PRINT_ANY,
202 "linkmode_index",
203 "mode %d ",
204 mode);
205 else
206 print_string(PRINT_ANY,
207 "linkmode",
208 "mode %s "
209 , link_modes[mode]);
210 }
211
212 static char *parse_link_kind(struct rtattr *tb, bool slave)
213 {
214 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
215 int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND;
216
217 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
218
219 if (linkinfo[attr])
220 return RTA_DATA(linkinfo[attr]);
221
222 return "";
223 }
224
225 static int match_link_kind(struct rtattr **tb, const char *kind, bool slave)
226 {
227 if (!tb[IFLA_LINKINFO])
228 return -1;
229
230 return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind);
231 }
232
233 static void print_linktype(FILE *fp, struct rtattr *tb)
234 {
235 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
236 struct link_util *lu;
237 struct link_util *slave_lu;
238 char slave[32];
239
240 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
241 open_json_object("linkinfo");
242
243 if (linkinfo[IFLA_INFO_KIND]) {
244 const char *kind
245 = rta_getattr_str(linkinfo[IFLA_INFO_KIND]);
246
247 print_nl();
248 print_string(PRINT_ANY, "info_kind", " %s ", kind);
249
250 lu = get_link_kind(kind);
251 if (lu && lu->print_opt) {
252 struct rtattr *attr[lu->maxattr+1], **data = NULL;
253
254 if (linkinfo[IFLA_INFO_DATA]) {
255 parse_rtattr_nested(attr, lu->maxattr,
256 linkinfo[IFLA_INFO_DATA]);
257 data = attr;
258 }
259 open_json_object("info_data");
260 lu->print_opt(lu, fp, data);
261 close_json_object();
262
263 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
264 lu->print_xstats) {
265 open_json_object("info_xstats");
266 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
267 close_json_object();
268 }
269 }
270 }
271
272 if (linkinfo[IFLA_INFO_SLAVE_KIND]) {
273 const char *slave_kind
274 = rta_getattr_str(linkinfo[IFLA_INFO_SLAVE_KIND]);
275
276 print_nl();
277 print_string(PRINT_ANY,
278 "info_slave_kind",
279 " %s_slave ",
280 slave_kind);
281
282 snprintf(slave, sizeof(slave), "%s_slave", slave_kind);
283
284 slave_lu = get_link_kind(slave);
285 if (slave_lu && slave_lu->print_opt) {
286 struct rtattr *attr[slave_lu->maxattr+1], **data = NULL;
287
288 if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
289 parse_rtattr_nested(attr, slave_lu->maxattr,
290 linkinfo[IFLA_INFO_SLAVE_DATA]);
291 data = attr;
292 }
293 open_json_object("info_slave_data");
294 slave_lu->print_opt(slave_lu, fp, data);
295 close_json_object();
296 }
297 }
298 close_json_object();
299 }
300
301 static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
302 {
303 struct rtattr *inet6_attr;
304 struct rtattr *tb[IFLA_INET6_MAX + 1];
305
306 inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
307 if (!inet6_attr)
308 return;
309
310 parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
311
312 if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
313 __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]);
314 SPRINT_BUF(b1);
315
316 switch (mode) {
317 case IN6_ADDR_GEN_MODE_EUI64:
318 print_string(PRINT_ANY,
319 "inet6_addr_gen_mode",
320 "addrgenmode %s ",
321 "eui64");
322 break;
323 case IN6_ADDR_GEN_MODE_NONE:
324 print_string(PRINT_ANY,
325 "inet6_addr_gen_mode",
326 "addrgenmode %s ",
327 "none");
328 break;
329 case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
330 print_string(PRINT_ANY,
331 "inet6_addr_gen_mode",
332 "addrgenmode %s ",
333 "stable_secret");
334 break;
335 case IN6_ADDR_GEN_MODE_RANDOM:
336 print_string(PRINT_ANY,
337 "inet6_addr_gen_mode",
338 "addrgenmode %s ",
339 "random");
340 break;
341 default:
342 snprintf(b1, sizeof(b1), "%#.2hhx", mode);
343 print_string(PRINT_ANY,
344 "inet6_addr_gen_mode",
345 "addrgenmode %s ",
346 b1);
347 break;
348 }
349 }
350 }
351
352 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats);
353
354 static void print_vfinfo(FILE *fp, struct ifinfomsg *ifi, struct rtattr *vfinfo)
355 {
356 struct ifla_vf_mac *vf_mac;
357 struct ifla_vf_broadcast *vf_broadcast;
358 struct ifla_vf_tx_rate *vf_tx_rate;
359 struct rtattr *vf[IFLA_VF_MAX + 1] = {};
360
361 SPRINT_BUF(b1);
362
363 if (vfinfo->rta_type != IFLA_VF_INFO) {
364 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
365 return;
366 }
367
368 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
369
370 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
371 vf_broadcast = RTA_DATA(vf[IFLA_VF_BROADCAST]);
372 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
373
374 print_string(PRINT_FP, NULL, "%s ", _SL_);
375 print_int(PRINT_ANY, "vf", "vf %d ", vf_mac->vf);
376
377 print_string(PRINT_ANY,
378 "link_type",
379 " link/%s ",
380 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
381
382 print_color_string(PRINT_ANY, COLOR_MAC,
383 "address", "%s",
384 ll_addr_n2a((unsigned char *) &vf_mac->mac,
385 ifi->ifi_type == ARPHRD_ETHER ?
386 ETH_ALEN : INFINIBAND_ALEN,
387 ifi->ifi_type,
388 b1, sizeof(b1)));
389
390 if (vf[IFLA_VF_BROADCAST]) {
391 if (ifi->ifi_flags&IFF_POINTOPOINT) {
392 print_string(PRINT_FP, NULL, " peer ", NULL);
393 print_bool(PRINT_JSON,
394 "link_pointtopoint", NULL, true);
395 } else
396 print_string(PRINT_FP, NULL, " brd ", NULL);
397
398 print_color_string(PRINT_ANY, COLOR_MAC,
399 "broadcast", "%s",
400 ll_addr_n2a((unsigned char *) &vf_broadcast->broadcast,
401 ifi->ifi_type == ARPHRD_ETHER ?
402 ETH_ALEN : INFINIBAND_ALEN,
403 ifi->ifi_type,
404 b1, sizeof(b1)));
405 }
406
407 if (vf[IFLA_VF_VLAN_LIST]) {
408 struct rtattr *i, *vfvlanlist = vf[IFLA_VF_VLAN_LIST];
409 int rem = RTA_PAYLOAD(vfvlanlist);
410
411 open_json_array(PRINT_JSON, "vlan_list");
412 for (i = RTA_DATA(vfvlanlist);
413 RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
414 struct ifla_vf_vlan_info *vf_vlan_info = RTA_DATA(i);
415 SPRINT_BUF(b2);
416
417 open_json_object(NULL);
418 if (vf_vlan_info->vlan)
419 print_int(PRINT_ANY,
420 "vlan",
421 ", vlan %d",
422 vf_vlan_info->vlan);
423 if (vf_vlan_info->qos)
424 print_int(PRINT_ANY,
425 "qos",
426 ", qos %d",
427 vf_vlan_info->qos);
428 if (vf_vlan_info->vlan_proto &&
429 vf_vlan_info->vlan_proto != htons(ETH_P_8021Q))
430 print_string(PRINT_ANY,
431 "protocol",
432 ", vlan protocol %s",
433 ll_proto_n2a(
434 vf_vlan_info->vlan_proto,
435 b2, sizeof(b2)));
436 close_json_object();
437 }
438 close_json_array(PRINT_JSON, NULL);
439 } else {
440 struct ifla_vf_vlan *vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
441
442 if (vf_vlan->vlan)
443 print_int(PRINT_ANY,
444 "vlan",
445 ", vlan %d",
446 vf_vlan->vlan);
447 if (vf_vlan->qos)
448 print_int(PRINT_ANY, "qos", ", qos %d", vf_vlan->qos);
449 }
450
451 if (vf_tx_rate->rate)
452 print_uint(PRINT_ANY,
453 "tx_rate",
454 ", tx rate %u (Mbps)",
455 vf_tx_rate->rate);
456
457 if (vf[IFLA_VF_RATE]) {
458 struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
459 int max_tx = vf_rate->max_tx_rate;
460 int min_tx = vf_rate->min_tx_rate;
461
462 if (is_json_context()) {
463 open_json_object("rate");
464 print_uint(PRINT_JSON, "max_tx", NULL, max_tx);
465 print_uint(PRINT_ANY, "min_tx", NULL, min_tx);
466 close_json_object();
467 } else {
468 if (max_tx)
469 fprintf(fp, ", max_tx_rate %uMbps", max_tx);
470 if (min_tx)
471 fprintf(fp, ", min_tx_rate %uMbps", min_tx);
472 }
473 }
474
475 if (vf[IFLA_VF_SPOOFCHK]) {
476 struct ifla_vf_spoofchk *vf_spoofchk =
477 RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
478
479 if (vf_spoofchk->setting != -1)
480 print_bool(PRINT_ANY,
481 "spoofchk",
482 vf_spoofchk->setting ?
483 ", spoof checking on" : ", spoof checking off",
484 vf_spoofchk->setting);
485 }
486
487 if (vf[IFLA_VF_LINK_STATE]) {
488 struct ifla_vf_link_state *vf_linkstate =
489 RTA_DATA(vf[IFLA_VF_LINK_STATE]);
490
491 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
492 print_string(PRINT_ANY,
493 "link_state",
494 ", link-state %s",
495 "auto");
496 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
497 print_string(PRINT_ANY,
498 "link_state",
499 ", link-state %s",
500 "enable");
501 else
502 print_string(PRINT_ANY,
503 "link_state",
504 ", link-state %s",
505 "disable");
506 }
507
508 if (vf[IFLA_VF_TRUST]) {
509 struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]);
510
511 if (vf_trust->setting != -1)
512 print_bool(PRINT_ANY,
513 "trust",
514 vf_trust->setting ? ", trust on" : ", trust off",
515 vf_trust->setting);
516 }
517
518 if (vf[IFLA_VF_RSS_QUERY_EN]) {
519 struct ifla_vf_rss_query_en *rss_query =
520 RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]);
521
522 if (rss_query->setting != -1)
523 print_bool(PRINT_ANY,
524 "query_rss_en",
525 rss_query->setting ? ", query_rss on"
526 : ", query_rss off",
527 rss_query->setting);
528 }
529
530 if (vf[IFLA_VF_STATS] && show_stats)
531 print_vf_stats64(fp, vf[IFLA_VF_STATS]);
532 }
533
534 void print_num(FILE *fp, unsigned int width, uint64_t count)
535 {
536 const char *prefix = "kMGTPE";
537 const unsigned int base = use_iec ? 1024 : 1000;
538 uint64_t powi = 1;
539 uint16_t powj = 1;
540 uint8_t precision = 2;
541 char buf[64];
542
543 if (!human_readable || count < base) {
544 fprintf(fp, "%-*"PRIu64" ", width, count);
545 return;
546 }
547
548 /* increase value by a factor of 1000/1024 and print
549 * if result is something a human can read
550 */
551 for (;;) {
552 powi *= base;
553 if (count / base < powi)
554 break;
555
556 if (!prefix[1])
557 break;
558 ++prefix;
559 }
560
561 /* try to guess a good number of digits for precision */
562 for (; precision > 0; precision--) {
563 powj *= 10;
564 if (count / powi < powj)
565 break;
566 }
567
568 snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
569 (double) count / powi, *prefix, use_iec ? "i" : "");
570
571 fprintf(fp, "%-*s ", width, buf);
572 }
573
574 static void print_vf_stats64(FILE *fp, struct rtattr *vfstats)
575 {
576 struct rtattr *vf[IFLA_VF_STATS_MAX + 1];
577
578 if (vfstats->rta_type != IFLA_VF_STATS) {
579 fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type);
580 return;
581 }
582
583 parse_rtattr_nested(vf, IFLA_VF_STATS_MAX, vfstats);
584
585 if (is_json_context()) {
586 open_json_object("stats");
587
588 /* RX stats */
589 open_json_object("rx");
590 print_u64(PRINT_JSON, "bytes", NULL,
591 rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
592 print_u64(PRINT_JSON, "packets", NULL,
593 rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
594 print_u64(PRINT_JSON, "multicast", NULL,
595 rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
596 print_u64(PRINT_JSON, "broadcast", NULL,
597 rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
598 if (vf[IFLA_VF_STATS_RX_DROPPED])
599 print_u64(PRINT_JSON, "dropped", NULL,
600 rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
601 close_json_object();
602
603 /* TX stats */
604 open_json_object("tx");
605 print_u64(PRINT_JSON, "tx_bytes", NULL,
606 rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
607 print_u64(PRINT_JSON, "tx_packets", NULL,
608 rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
609 if (vf[IFLA_VF_STATS_TX_DROPPED])
610 print_u64(PRINT_JSON, "dropped", NULL,
611 rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
612 close_json_object();
613 close_json_object();
614 } else {
615 /* RX stats */
616 fprintf(fp, "%s", _SL_);
617 fprintf(fp, " RX: bytes packets mcast bcast ");
618 if (vf[IFLA_VF_STATS_RX_DROPPED])
619 fprintf(fp, " dropped ");
620 fprintf(fp, "%s", _SL_);
621 fprintf(fp, " ");
622
623 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES]));
624 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS]));
625 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST]));
626 print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST]));
627 if (vf[IFLA_VF_STATS_RX_DROPPED])
628 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED]));
629
630 /* TX stats */
631 fprintf(fp, "%s", _SL_);
632 fprintf(fp, " TX: bytes packets ");
633 if (vf[IFLA_VF_STATS_TX_DROPPED])
634 fprintf(fp, " dropped ");
635 fprintf(fp, "%s", _SL_);
636 fprintf(fp, " ");
637
638 print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES]));
639 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS]));
640 if (vf[IFLA_VF_STATS_TX_DROPPED])
641 print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED]));
642 }
643 }
644
645 static void __print_link_stats(FILE *fp, struct rtattr *tb[])
646 {
647 const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES];
648 struct rtnl_link_stats64 _s, *s = &_s;
649 int ret;
650
651 ret = get_rtnl_link_stats_rta(s, tb);
652 if (ret < 0)
653 return;
654
655 if (is_json_context()) {
656 open_json_object((ret == sizeof(*s)) ? "stats64" : "stats");
657
658 /* RX stats */
659 open_json_object("rx");
660 print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes);
661 print_u64(PRINT_JSON, "packets", NULL, s->rx_packets);
662 print_u64(PRINT_JSON, "errors", NULL, s->rx_errors);
663 print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped);
664 print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors);
665 print_u64(PRINT_JSON, "multicast", NULL, s->multicast);
666 if (s->rx_compressed)
667 print_u64(PRINT_JSON,
668 "compressed", NULL, s->rx_compressed);
669
670 /* RX error stats */
671 if (show_stats > 1) {
672 print_u64(PRINT_JSON,
673 "length_errors",
674 NULL, s->rx_length_errors);
675 print_u64(PRINT_JSON,
676 "crc_errors",
677 NULL, s->rx_crc_errors);
678 print_u64(PRINT_JSON,
679 "frame_errors",
680 NULL, s->rx_frame_errors);
681 print_u64(PRINT_JSON,
682 "fifo_errors",
683 NULL, s->rx_fifo_errors);
684 print_u64(PRINT_JSON,
685 "missed_errors",
686 NULL, s->rx_missed_errors);
687 if (s->rx_nohandler)
688 print_u64(PRINT_JSON,
689 "nohandler", NULL, s->rx_nohandler);
690 }
691 close_json_object();
692
693 /* TX stats */
694 open_json_object("tx");
695 print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes);
696 print_u64(PRINT_JSON, "packets", NULL, s->tx_packets);
697 print_u64(PRINT_JSON, "errors", NULL, s->tx_errors);
698 print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped);
699 print_u64(PRINT_JSON,
700 "carrier_errors",
701 NULL, s->tx_carrier_errors);
702 print_u64(PRINT_JSON, "collisions", NULL, s->collisions);
703 if (s->tx_compressed)
704 print_u64(PRINT_JSON,
705 "compressed", NULL, s->tx_compressed);
706
707 /* TX error stats */
708 if (show_stats > 1) {
709 print_u64(PRINT_JSON,
710 "aborted_errors",
711 NULL, s->tx_aborted_errors);
712 print_u64(PRINT_JSON,
713 "fifo_errors",
714 NULL, s->tx_fifo_errors);
715 print_u64(PRINT_JSON,
716 "window_errors",
717 NULL, s->tx_window_errors);
718 print_u64(PRINT_JSON,
719 "heartbeat_errors",
720 NULL, s->tx_heartbeat_errors);
721 if (carrier_changes)
722 print_u64(PRINT_JSON, "carrier_changes", NULL,
723 rta_getattr_u32(carrier_changes));
724 }
725
726 close_json_object();
727 close_json_object();
728 } else {
729 /* RX stats */
730 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
731 s->rx_compressed ? "compressed" : "", _SL_);
732
733 fprintf(fp, " ");
734 print_num(fp, 10, s->rx_bytes);
735 print_num(fp, 8, s->rx_packets);
736 print_num(fp, 7, s->rx_errors);
737 print_num(fp, 7, s->rx_dropped);
738 print_num(fp, 7, s->rx_over_errors);
739 print_num(fp, 7, s->multicast);
740 if (s->rx_compressed)
741 print_num(fp, 7, s->rx_compressed);
742
743 /* RX error stats */
744 if (show_stats > 1) {
745 fprintf(fp, "%s", _SL_);
746 fprintf(fp, " RX errors: length crc frame fifo missed%s%s",
747 s->rx_nohandler ? " nohandler" : "", _SL_);
748 fprintf(fp, " ");
749 print_num(fp, 8, s->rx_length_errors);
750 print_num(fp, 7, s->rx_crc_errors);
751 print_num(fp, 7, s->rx_frame_errors);
752 print_num(fp, 7, s->rx_fifo_errors);
753 print_num(fp, 7, s->rx_missed_errors);
754 if (s->rx_nohandler)
755 print_num(fp, 7, s->rx_nohandler);
756 }
757 fprintf(fp, "%s", _SL_);
758
759 /* TX stats */
760 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
761 s->tx_compressed ? "compressed" : "", _SL_);
762
763 fprintf(fp, " ");
764 print_num(fp, 10, s->tx_bytes);
765 print_num(fp, 8, s->tx_packets);
766 print_num(fp, 7, s->tx_errors);
767 print_num(fp, 7, s->tx_dropped);
768 print_num(fp, 7, s->tx_carrier_errors);
769 print_num(fp, 7, s->collisions);
770 if (s->tx_compressed)
771 print_num(fp, 7, s->tx_compressed);
772
773 /* TX error stats */
774 if (show_stats > 1) {
775 fprintf(fp, "%s", _SL_);
776 fprintf(fp, " TX errors: aborted fifo window heartbeat");
777 if (carrier_changes)
778 fprintf(fp, " transns");
779 fprintf(fp, "%s", _SL_);
780
781 fprintf(fp, " ");
782 print_num(fp, 8, s->tx_aborted_errors);
783 print_num(fp, 7, s->tx_fifo_errors);
784 print_num(fp, 7, s->tx_window_errors);
785 print_num(fp, 7, s->tx_heartbeat_errors);
786 if (carrier_changes)
787 print_num(fp, 7,
788 rta_getattr_u32(carrier_changes));
789 }
790 }
791 }
792
793 static void print_link_stats(FILE *fp, struct nlmsghdr *n)
794 {
795 struct ifinfomsg *ifi = NLMSG_DATA(n);
796 struct rtattr *tb[IFLA_MAX+1];
797
798 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi),
799 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
800 __print_link_stats(fp, tb);
801 print_nl();
802 }
803
804 static int print_linkinfo_brief(FILE *fp, const char *name,
805 const struct ifinfomsg *ifi,
806 struct rtattr *tb[])
807 {
808 unsigned int m_flag = 0;
809
810 m_flag = print_name_and_link("%-16s ", name, tb);
811
812 if (tb[IFLA_OPERSTATE])
813 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
814
815 if (filter.family == AF_PACKET) {
816 SPRINT_BUF(b1);
817
818 if (tb[IFLA_ADDRESS]) {
819 print_color_string(PRINT_ANY, COLOR_MAC,
820 "address", "%s ",
821 ll_addr_n2a(
822 RTA_DATA(tb[IFLA_ADDRESS]),
823 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
824 ifi->ifi_type,
825 b1, sizeof(b1)));
826 }
827 }
828
829 if (filter.family == AF_PACKET) {
830 print_link_flags(fp, ifi->ifi_flags, m_flag);
831 print_string(PRINT_FP, NULL, "%s", "\n");
832 }
833
834 fflush(fp);
835 return 0;
836 }
837
838 static const char *link_events[] = {
839 [IFLA_EVENT_NONE] = "NONE",
840 [IFLA_EVENT_REBOOT] = "REBOOT",
841 [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
842 [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
843 [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
844 [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
845 [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
846 };
847
848 static void print_link_event(FILE *f, __u32 event)
849 {
850 if (event >= ARRAY_SIZE(link_events))
851 print_int(PRINT_ANY, "event", "event %d ", event);
852 else {
853 if (event)
854 print_string(PRINT_ANY,
855 "event", "event %s ",
856 link_events[event]);
857 }
858 }
859
860 int print_linkinfo(struct nlmsghdr *n, void *arg)
861 {
862 FILE *fp = (FILE *)arg;
863 struct ifinfomsg *ifi = NLMSG_DATA(n);
864 struct rtattr *tb[IFLA_MAX+1];
865 int len = n->nlmsg_len;
866 const char *name;
867 unsigned int m_flag = 0;
868 SPRINT_BUF(b1);
869
870 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
871 return 0;
872
873 len -= NLMSG_LENGTH(sizeof(*ifi));
874 if (len < 0)
875 return -1;
876
877 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
878 return -1;
879 if (filter.up && !(ifi->ifi_flags&IFF_UP))
880 return -1;
881
882 parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, NLA_F_NESTED);
883
884 name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]);
885 if (!name)
886 return -1;
887
888 if (filter.label)
889 return 0;
890
891 if (tb[IFLA_GROUP]) {
892 int group = rta_getattr_u32(tb[IFLA_GROUP]);
893
894 if (filter.group != -1 && group != filter.group)
895 return -1;
896 }
897
898 if (tb[IFLA_MASTER]) {
899 int master = rta_getattr_u32(tb[IFLA_MASTER]);
900
901 if (filter.master > 0 && master != filter.master)
902 return -1;
903 } else if (filter.master > 0)
904 return -1;
905
906 if (filter.kind && match_link_kind(tb, filter.kind, 0))
907 return -1;
908
909 if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
910 return -1;
911
912 if (n->nlmsg_type == RTM_DELLINK)
913 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
914
915 if (brief)
916 return print_linkinfo_brief(fp, name, ifi, tb);
917
918 print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index);
919
920 m_flag = print_name_and_link("%s: ", name, tb);
921 print_link_flags(fp, ifi->ifi_flags, m_flag);
922
923 if (tb[IFLA_MTU])
924 print_int(PRINT_ANY,
925 "mtu", "mtu %u ",
926 rta_getattr_u32(tb[IFLA_MTU]));
927 if (tb[IFLA_XDP])
928 xdp_dump(fp, tb[IFLA_XDP], do_link, false);
929 if (tb[IFLA_QDISC])
930 print_string(PRINT_ANY,
931 "qdisc",
932 "qdisc %s ",
933 rta_getattr_str(tb[IFLA_QDISC]));
934 if (tb[IFLA_MASTER]) {
935 int master = rta_getattr_u32(tb[IFLA_MASTER]);
936
937 print_string(PRINT_ANY,
938 "master", "master %s ",
939 ll_index_to_name(master));
940 }
941
942 if (tb[IFLA_OPERSTATE])
943 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
944
945 if (do_link && tb[IFLA_LINKMODE])
946 print_linkmode(fp, tb[IFLA_LINKMODE]);
947
948 if (tb[IFLA_GROUP]) {
949 int group = rta_getattr_u32(tb[IFLA_GROUP]);
950
951 print_string(PRINT_ANY,
952 "group",
953 "group %s ",
954 rtnl_group_n2a(group, b1, sizeof(b1)));
955 }
956
957 if (filter.showqueue)
958 print_queuelen(fp, tb);
959
960 if (tb[IFLA_EVENT])
961 print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
962
963 if (!filter.family || filter.family == AF_PACKET || show_details) {
964 print_nl();
965 print_string(PRINT_ANY,
966 "link_type",
967 " link/%s ",
968 ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
969 if (tb[IFLA_ADDRESS]) {
970 print_color_string(PRINT_ANY,
971 COLOR_MAC,
972 "address",
973 "%s",
974 ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
975 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
976 ifi->ifi_type,
977 b1, sizeof(b1)));
978 }
979 if (tb[IFLA_BROADCAST]) {
980 if (ifi->ifi_flags&IFF_POINTOPOINT) {
981 print_string(PRINT_FP, NULL, " peer ", NULL);
982 print_bool(PRINT_JSON,
983 "link_pointtopoint", NULL, true);
984 } else {
985 print_string(PRINT_FP, NULL, " brd ", NULL);
986 }
987 print_color_string(PRINT_ANY,
988 COLOR_MAC,
989 "broadcast",
990 "%s",
991 ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
992 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
993 ifi->ifi_type,
994 b1, sizeof(b1)));
995 }
996 }
997
998 if (tb[IFLA_LINK_NETNSID]) {
999 int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]);
1000
1001 if (is_json_context()) {
1002 print_int(PRINT_JSON, "link_netnsid", NULL, id);
1003 } else {
1004 if (id >= 0) {
1005 char *name = get_name_from_nsid(id);
1006
1007 if (name)
1008 print_string(PRINT_FP, NULL,
1009 " link-netns %s", name);
1010 else
1011 print_int(PRINT_FP, NULL,
1012 " link-netnsid %d", id);
1013 } else
1014 print_string(PRINT_FP, NULL,
1015 " link-netnsid %s", "unknown");
1016 }
1017 }
1018
1019 if (tb[IFLA_NEW_NETNSID]) {
1020 int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
1021 char *name = get_name_from_nsid(id);
1022
1023 if (name)
1024 print_string(PRINT_FP, NULL, " new-netns %s", name);
1025 else
1026 print_int(PRINT_FP, NULL, " new-netnsid %d", id);
1027 }
1028 if (tb[IFLA_NEW_IFINDEX]) {
1029 int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);
1030
1031 print_int(PRINT_FP, NULL, " new-ifindex %d", id);
1032 }
1033
1034 if (tb[IFLA_PROTO_DOWN]) {
1035 if (rta_getattr_u8(tb[IFLA_PROTO_DOWN]))
1036 print_bool(PRINT_ANY,
1037 "proto_down", " protodown on ", true);
1038 }
1039
1040 if (show_details) {
1041 if (tb[IFLA_PROMISCUITY])
1042 print_uint(PRINT_ANY,
1043 "promiscuity",
1044 " promiscuity %u ",
1045 rta_getattr_u32(tb[IFLA_PROMISCUITY]));
1046
1047 if (tb[IFLA_MIN_MTU])
1048 print_uint(PRINT_ANY,
1049 "min_mtu", "minmtu %u ",
1050 rta_getattr_u32(tb[IFLA_MIN_MTU]));
1051
1052 if (tb[IFLA_MAX_MTU])
1053 print_uint(PRINT_ANY,
1054 "max_mtu", "maxmtu %u ",
1055 rta_getattr_u32(tb[IFLA_MAX_MTU]));
1056
1057 if (tb[IFLA_LINKINFO])
1058 print_linktype(fp, tb[IFLA_LINKINFO]);
1059
1060 if (do_link && tb[IFLA_AF_SPEC])
1061 print_af_spec(fp, tb[IFLA_AF_SPEC]);
1062
1063 if (tb[IFLA_NUM_TX_QUEUES])
1064 print_uint(PRINT_ANY,
1065 "num_tx_queues",
1066 "numtxqueues %u ",
1067 rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES]));
1068
1069 if (tb[IFLA_NUM_RX_QUEUES])
1070 print_uint(PRINT_ANY,
1071 "num_rx_queues",
1072 "numrxqueues %u ",
1073 rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES]));
1074
1075 if (tb[IFLA_GSO_MAX_SIZE])
1076 print_uint(PRINT_ANY,
1077 "gso_max_size",
1078 "gso_max_size %u ",
1079 rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE]));
1080
1081 if (tb[IFLA_GSO_MAX_SEGS])
1082 print_uint(PRINT_ANY,
1083 "gso_max_segs",
1084 "gso_max_segs %u ",
1085 rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS]));
1086
1087 if (tb[IFLA_PHYS_PORT_NAME])
1088 print_string(PRINT_ANY,
1089 "phys_port_name",
1090 "portname %s ",
1091 rta_getattr_str(tb[IFLA_PHYS_PORT_NAME]));
1092
1093 if (tb[IFLA_PHYS_PORT_ID]) {
1094 print_string(PRINT_ANY,
1095 "phys_port_id",
1096 "portid %s ",
1097 hexstring_n2a(
1098 RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
1099 RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
1100 b1, sizeof(b1)));
1101 }
1102
1103 if (tb[IFLA_PHYS_SWITCH_ID]) {
1104 print_string(PRINT_ANY,
1105 "phys_switch_id",
1106 "switchid %s ",
1107 hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]),
1108 RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
1109 b1, sizeof(b1)));
1110 }
1111 }
1112
1113 if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
1114 print_string(PRINT_FP, NULL, "%s ", _SL_);
1115 print_string(PRINT_ANY,
1116 "ifalias",
1117 "alias %s",
1118 rta_getattr_str(tb[IFLA_IFALIAS]));
1119 }
1120
1121 if ((do_link || show_details) && tb[IFLA_XDP])
1122 xdp_dump(fp, tb[IFLA_XDP], true, true);
1123
1124 if (do_link && show_stats) {
1125 print_nl();
1126 __print_link_stats(fp, tb);
1127 }
1128
1129 if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
1130 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
1131 int rem = RTA_PAYLOAD(vflist);
1132
1133 open_json_array(PRINT_JSON, "vfinfo_list");
1134 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
1135 open_json_object(NULL);
1136 print_vfinfo(fp, ifi, i);
1137 close_json_object();
1138 }
1139 close_json_array(PRINT_JSON, NULL);
1140 }
1141
1142 if (tb[IFLA_PROP_LIST]) {
1143 struct rtattr *i, *proplist = tb[IFLA_PROP_LIST];
1144 int rem = RTA_PAYLOAD(proplist);
1145
1146 open_json_array(PRINT_JSON, "altnames");
1147 for (i = RTA_DATA(proplist); RTA_OK(i, rem);
1148 i = RTA_NEXT(i, rem)) {
1149 if (i->rta_type != IFLA_ALT_IFNAME)
1150 continue;
1151 print_string(PRINT_FP, NULL, "%s altname ", _SL_);
1152 print_string(PRINT_ANY, NULL,
1153 "%s", rta_getattr_str(i));
1154 }
1155 close_json_array(PRINT_JSON, NULL);
1156 }
1157
1158 print_string(PRINT_FP, NULL, "%s", _SL_);
1159 fflush(fp);
1160 return 1;
1161 }
1162
1163 static int flush_update(void)
1164 {
1165
1166 /*
1167 * Note that the kernel may delete multiple addresses for one
1168 * delete request (e.g. if ipv4 address promotion is disabled).
1169 * Since a flush operation is really a series of delete requests
1170 * its possible that we may request an address delete that has
1171 * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL
1172 * errors returned from a flush request
1173 */
1174 if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) &&
1175 (errno != EADDRNOTAVAIL)) {
1176 perror("Failed to send flush request");
1177 return -1;
1178 }
1179 filter.flushp = 0;
1180 return 0;
1181 }
1182
1183 static int set_lifetime(unsigned int *lifetime, char *argv)
1184 {
1185 if (strcmp(argv, "forever") == 0)
1186 *lifetime = INFINITY_LIFE_TIME;
1187 else if (get_u32(lifetime, argv, 0))
1188 return -1;
1189
1190 return 0;
1191 }
1192
1193 static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
1194 struct rtattr *ifa_flags_attr)
1195 {
1196 return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
1197 ifa->ifa_flags;
1198 }
1199
1200 /* Mapping from argument to address flag mask */
1201 static const struct {
1202 const char *name;
1203 unsigned long value;
1204 } ifa_flag_names[] = {
1205 { "secondary", IFA_F_SECONDARY },
1206 { "temporary", IFA_F_SECONDARY },
1207 { "nodad", IFA_F_NODAD },
1208 { "optimistic", IFA_F_OPTIMISTIC },
1209 { "dadfailed", IFA_F_DADFAILED },
1210 { "home", IFA_F_HOMEADDRESS },
1211 { "deprecated", IFA_F_DEPRECATED },
1212 { "tentative", IFA_F_TENTATIVE },
1213 { "permanent", IFA_F_PERMANENT },
1214 { "mngtmpaddr", IFA_F_MANAGETEMPADDR },
1215 { "noprefixroute", IFA_F_NOPREFIXROUTE },
1216 { "autojoin", IFA_F_MCAUTOJOIN },
1217 { "stable-privacy", IFA_F_STABLE_PRIVACY },
1218 };
1219
1220 static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa,
1221 unsigned int flags)
1222 {
1223 unsigned int i;
1224
1225 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1226 unsigned long mask = ifa_flag_names[i].value;
1227
1228 if (mask == IFA_F_PERMANENT) {
1229 if (!(flags & mask))
1230 print_bool(PRINT_ANY,
1231 "dynamic", "dynamic ", true);
1232 } else if (flags & mask) {
1233 if (mask == IFA_F_SECONDARY &&
1234 ifa->ifa_family == AF_INET6) {
1235 print_bool(PRINT_ANY,
1236 "temporary", "temporary ", true);
1237 } else {
1238 print_string(PRINT_FP, NULL,
1239 "%s ", ifa_flag_names[i].name);
1240 print_bool(PRINT_JSON,
1241 ifa_flag_names[i].name, NULL, true);
1242 }
1243 }
1244
1245 flags &= ~mask;
1246 }
1247
1248 if (flags) {
1249 if (is_json_context()) {
1250 SPRINT_BUF(b1);
1251
1252 snprintf(b1, sizeof(b1), "%02x", flags);
1253 print_string(PRINT_JSON, "ifa_flags", NULL, b1);
1254 } else {
1255 fprintf(fp, "flags %02x ", flags);
1256 }
1257 }
1258
1259 }
1260
1261 static int get_filter(const char *arg)
1262 {
1263 bool inv = false;
1264 unsigned int i;
1265
1266 if (arg[0] == '-') {
1267 inv = true;
1268 arg++;
1269 }
1270
1271 /* Special cases */
1272 if (strcmp(arg, "dynamic") == 0) {
1273 inv = !inv;
1274 arg = "permanent";
1275 } else if (strcmp(arg, "primary") == 0) {
1276 inv = !inv;
1277 arg = "secondary";
1278 }
1279
1280 for (i = 0; i < ARRAY_SIZE(ifa_flag_names); i++) {
1281 if (strcmp(arg, ifa_flag_names[i].name))
1282 continue;
1283
1284 if (inv)
1285 filter.flags &= ~ifa_flag_names[i].value;
1286 else
1287 filter.flags |= ifa_flag_names[i].value;
1288 filter.flagmask |= ifa_flag_names[i].value;
1289 return 0;
1290 }
1291 return -1;
1292 }
1293
1294 static int ifa_label_match_rta(int ifindex, const struct rtattr *rta)
1295 {
1296 const char *label;
1297
1298 if (!filter.label)
1299 return 0;
1300
1301 if (rta)
1302 label = RTA_DATA(rta);
1303 else
1304 label = ll_index_to_name(ifindex);
1305
1306 return fnmatch(filter.label, label, 0);
1307 }
1308
1309 int print_addrinfo(struct nlmsghdr *n, void *arg)
1310 {
1311 FILE *fp = arg;
1312 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1313 int len = n->nlmsg_len;
1314 unsigned int ifa_flags;
1315 struct rtattr *rta_tb[IFA_MAX+1];
1316
1317 SPRINT_BUF(b1);
1318
1319 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
1320 return 0;
1321 len -= NLMSG_LENGTH(sizeof(*ifa));
1322 if (len < 0) {
1323 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
1324 return -1;
1325 }
1326
1327 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
1328 return 0;
1329
1330 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
1331 n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1332
1333 ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
1334
1335 if (!rta_tb[IFA_LOCAL])
1336 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
1337 if (!rta_tb[IFA_ADDRESS])
1338 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
1339
1340 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
1341 return 0;
1342 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1343 return 0;
1344 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1345 return 0;
1346
1347 if (filter.family && filter.family != ifa->ifa_family)
1348 return 0;
1349
1350 if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL]))
1351 return 0;
1352
1353 if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL]))
1354 return 0;
1355
1356 if (filter.flushb) {
1357 struct nlmsghdr *fn;
1358
1359 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
1360 if (flush_update())
1361 return -1;
1362 }
1363 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
1364 memcpy(fn, n, n->nlmsg_len);
1365 fn->nlmsg_type = RTM_DELADDR;
1366 fn->nlmsg_flags = NLM_F_REQUEST;
1367 fn->nlmsg_seq = ++rth.seq;
1368 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
1369 filter.flushed++;
1370 if (show_stats < 2)
1371 return 0;
1372 }
1373
1374 if (n->nlmsg_type == RTM_DELADDR)
1375 print_bool(PRINT_ANY, "deleted", "Deleted ", true);
1376
1377 if (!brief) {
1378 const char *name;
1379
1380 if (filter.oneline || filter.flushb) {
1381 const char *dev = ll_index_to_name(ifa->ifa_index);
1382
1383 if (is_json_context()) {
1384 print_int(PRINT_JSON,
1385 "index", NULL, ifa->ifa_index);
1386 print_string(PRINT_JSON, "dev", NULL, dev);
1387 } else {
1388 fprintf(fp, "%u: %s", ifa->ifa_index, dev);
1389 }
1390 }
1391
1392 name = family_name(ifa->ifa_family);
1393 if (*name != '?') {
1394 print_string(PRINT_ANY, "family", " %s ", name);
1395 } else {
1396 print_int(PRINT_ANY, "family_index", " family %d ",
1397 ifa->ifa_family);
1398 }
1399 }
1400
1401 if (rta_tb[IFA_LOCAL]) {
1402 print_color_string(PRINT_ANY,
1403 ifa_family_color(ifa->ifa_family),
1404 "local", "%s",
1405 format_host_rta(ifa->ifa_family,
1406 rta_tb[IFA_LOCAL]));
1407 if (rta_tb[IFA_ADDRESS] &&
1408 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]),
1409 RTA_DATA(rta_tb[IFA_LOCAL]),
1410 ifa->ifa_family == AF_INET ? 4 : 16)) {
1411 print_string(PRINT_FP, NULL, " %s ", "peer");
1412 print_color_string(PRINT_ANY,
1413 ifa_family_color(ifa->ifa_family),
1414 "address",
1415 "%s",
1416 format_host_rta(ifa->ifa_family,
1417 rta_tb[IFA_ADDRESS]));
1418 }
1419 print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen);
1420
1421 if (rta_tb[IFA_RT_PRIORITY])
1422 print_uint(PRINT_ANY, "metric", "metric %u ",
1423 rta_getattr_u32(rta_tb[IFA_RT_PRIORITY]));
1424 }
1425
1426 if (brief)
1427 goto brief_exit;
1428
1429 if (rta_tb[IFA_BROADCAST]) {
1430 print_string(PRINT_FP, NULL, "%s ", "brd");
1431 print_color_string(PRINT_ANY,
1432 ifa_family_color(ifa->ifa_family),
1433 "broadcast",
1434 "%s ",
1435 format_host_rta(ifa->ifa_family,
1436 rta_tb[IFA_BROADCAST]));
1437 }
1438
1439 if (rta_tb[IFA_ANYCAST]) {
1440 print_string(PRINT_FP, NULL, "%s ", "any");
1441 print_color_string(PRINT_ANY,
1442 ifa_family_color(ifa->ifa_family),
1443 "anycast",
1444 "%s ",
1445 format_host_rta(ifa->ifa_family,
1446 rta_tb[IFA_ANYCAST]));
1447 }
1448
1449 print_string(PRINT_ANY,
1450 "scope",
1451 "scope %s ",
1452 rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
1453
1454 print_ifa_flags(fp, ifa, ifa_flags);
1455
1456 if (rta_tb[IFA_LABEL])
1457 print_string(PRINT_ANY,
1458 "label",
1459 "%s",
1460 rta_getattr_str(rta_tb[IFA_LABEL]));
1461
1462 if (rta_tb[IFA_CACHEINFO]) {
1463 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
1464
1465 print_nl();
1466 print_string(PRINT_FP, NULL, " valid_lft ", NULL);
1467
1468 if (ci->ifa_valid == INFINITY_LIFE_TIME) {
1469 print_uint(PRINT_JSON,
1470 "valid_life_time",
1471 NULL, INFINITY_LIFE_TIME);
1472 print_string(PRINT_FP, NULL, "%s", "forever");
1473 } else {
1474 print_uint(PRINT_ANY,
1475 "valid_life_time", "%usec", ci->ifa_valid);
1476 }
1477
1478 print_string(PRINT_FP, NULL, " preferred_lft ", NULL);
1479 if (ci->ifa_prefered == INFINITY_LIFE_TIME) {
1480 print_uint(PRINT_JSON,
1481 "preferred_life_time",
1482 NULL, INFINITY_LIFE_TIME);
1483 print_string(PRINT_FP, NULL, "%s", "forever");
1484 } else {
1485 if (ifa_flags & IFA_F_DEPRECATED)
1486 print_int(PRINT_ANY,
1487 "preferred_life_time",
1488 "%dsec",
1489 ci->ifa_prefered);
1490 else
1491 print_uint(PRINT_ANY,
1492 "preferred_life_time",
1493 "%usec",
1494 ci->ifa_prefered);
1495 }
1496 }
1497 print_string(PRINT_FP, NULL, "%s", "\n");
1498 brief_exit:
1499 fflush(fp);
1500 return 0;
1501 }
1502
1503 static int print_selected_addrinfo(struct ifinfomsg *ifi,
1504 struct nlmsg_list *ainfo, FILE *fp)
1505 {
1506 open_json_array(PRINT_JSON, "addr_info");
1507 for ( ; ainfo ; ainfo = ainfo->next) {
1508 struct nlmsghdr *n = &ainfo->h;
1509 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1510
1511 if (n->nlmsg_type != RTM_NEWADDR)
1512 continue;
1513
1514 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifa)))
1515 return -1;
1516
1517 if (ifa->ifa_index != ifi->ifi_index ||
1518 (filter.family && filter.family != ifa->ifa_family))
1519 continue;
1520
1521 if (filter.up && !(ifi->ifi_flags&IFF_UP))
1522 continue;
1523
1524 open_json_object(NULL);
1525 print_addrinfo(n, fp);
1526 close_json_object();
1527 }
1528 close_json_array(PRINT_JSON, NULL);
1529
1530 if (brief) {
1531 print_string(PRINT_FP, NULL, "%s", "\n");
1532 fflush(fp);
1533 }
1534 return 0;
1535 }
1536
1537
1538 static int store_nlmsg(struct nlmsghdr *n, void *arg)
1539 {
1540 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
1541 struct nlmsg_list *h;
1542
1543 h = malloc(n->nlmsg_len+sizeof(void *));
1544 if (h == NULL)
1545 return -1;
1546
1547 memcpy(&h->h, n, n->nlmsg_len);
1548 h->next = NULL;
1549
1550 if (lchain->tail)
1551 lchain->tail->next = h;
1552 else
1553 lchain->head = h;
1554 lchain->tail = h;
1555
1556 ll_remember_index(n, NULL);
1557 return 0;
1558 }
1559
1560 static __u32 ipadd_dump_magic = 0x47361222;
1561
1562 static int ipadd_save_prep(void)
1563 {
1564 int ret;
1565
1566 if (isatty(STDOUT_FILENO)) {
1567 fprintf(stderr, "Not sending a binary stream to stdout\n");
1568 return -1;
1569 }
1570
1571 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
1572 if (ret != sizeof(ipadd_dump_magic)) {
1573 fprintf(stderr, "Can't write magic to dump file\n");
1574 return -1;
1575 }
1576
1577 return 0;
1578 }
1579
1580 static int ipadd_dump_check_magic(void)
1581 {
1582 int ret;
1583 __u32 magic = 0;
1584
1585 if (isatty(STDIN_FILENO)) {
1586 fprintf(stderr, "Can't restore address dump from a terminal\n");
1587 return -1;
1588 }
1589
1590 ret = fread(&magic, sizeof(magic), 1, stdin);
1591 if (magic != ipadd_dump_magic) {
1592 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1593 return -1;
1594 }
1595
1596 return 0;
1597 }
1598
1599 static int save_nlmsg(struct nlmsghdr *n, void *arg)
1600 {
1601 int ret;
1602
1603 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1604 if ((ret > 0) && (ret != n->nlmsg_len)) {
1605 fprintf(stderr, "Short write while saving nlmsg\n");
1606 ret = -EIO;
1607 }
1608
1609 return ret == n->nlmsg_len ? 0 : ret;
1610 }
1611
1612 static int show_handler(struct rtnl_ctrl_data *ctrl,
1613 struct nlmsghdr *n, void *arg)
1614 {
1615 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1616
1617 open_json_object(NULL);
1618 print_int(PRINT_ANY, "index", "if%d:\n", ifa->ifa_index);
1619 print_addrinfo(n, stdout);
1620 close_json_object();
1621 return 0;
1622 }
1623
1624 static int ipaddr_showdump(void)
1625 {
1626 int err;
1627
1628 if (ipadd_dump_check_magic())
1629 exit(-1);
1630
1631 new_json_obj(json);
1632 open_json_object(NULL);
1633 open_json_array(PRINT_JSON, "addr_info");
1634
1635 err = rtnl_from_file(stdin, &show_handler, NULL);
1636
1637 close_json_array(PRINT_JSON, NULL);
1638 close_json_object();
1639 delete_json_obj();
1640
1641 exit(err);
1642 }
1643
1644 static int restore_handler(struct rtnl_ctrl_data *ctrl,
1645 struct nlmsghdr *n, void *arg)
1646 {
1647 int ret;
1648
1649 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1650
1651 ll_init_map(&rth);
1652
1653 ret = rtnl_talk(&rth, n, NULL);
1654 if ((ret < 0) && (errno == EEXIST))
1655 ret = 0;
1656
1657 return ret;
1658 }
1659
1660 static int ipaddr_restore(void)
1661 {
1662 if (ipadd_dump_check_magic())
1663 exit(-1);
1664
1665 exit(rtnl_from_file(stdin, &restore_handler, NULL));
1666 }
1667
1668 void free_nlmsg_chain(struct nlmsg_chain *info)
1669 {
1670 struct nlmsg_list *l, *n;
1671
1672 for (l = info->head; l; l = n) {
1673 n = l->next;
1674 free(l);
1675 }
1676 }
1677
1678 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
1679 {
1680 struct nlmsg_list *l, **lp;
1681
1682 lp = &linfo->head;
1683 while ((l = *lp) != NULL) {
1684 int ok = 0;
1685 int missing_net_address = 1;
1686 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1687 struct nlmsg_list *a;
1688
1689 for (a = ainfo->head; a; a = a->next) {
1690 struct nlmsghdr *n = &a->h;
1691 struct ifaddrmsg *ifa = NLMSG_DATA(n);
1692 struct rtattr *tb[IFA_MAX + 1];
1693 unsigned int ifa_flags;
1694
1695 if (ifa->ifa_index != ifi->ifi_index)
1696 continue;
1697 missing_net_address = 0;
1698 if (filter.family && filter.family != ifa->ifa_family)
1699 continue;
1700 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
1701 continue;
1702
1703 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
1704 ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
1705
1706 if ((filter.flags ^ ifa_flags) & filter.flagmask)
1707 continue;
1708
1709 if (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL]))
1710 continue;
1711
1712 if (!tb[IFA_LOCAL])
1713 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
1714 if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL]))
1715 continue;
1716
1717 ok = 1;
1718 break;
1719 }
1720 if (missing_net_address &&
1721 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
1722 ok = 1;
1723 if (!ok) {
1724 *lp = l->next;
1725 free(l);
1726 } else
1727 lp = &l->next;
1728 }
1729 }
1730
1731 static int ipaddr_dump_filter(struct nlmsghdr *nlh, int reqlen)
1732 {
1733 struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
1734
1735 ifa->ifa_index = filter.ifindex;
1736
1737 return 0;
1738 }
1739
1740 static int ipaddr_flush(void)
1741 {
1742 int round = 0;
1743 char flushb[4096-512];
1744
1745 filter.flushb = flushb;
1746 filter.flushp = 0;
1747 filter.flushe = sizeof(flushb);
1748
1749 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
1750 if (rtnl_addrdump_req(&rth, filter.family,
1751 ipaddr_dump_filter) < 0) {
1752 perror("Cannot send dump request");
1753 exit(1);
1754 }
1755 filter.flushed = 0;
1756 if (rtnl_dump_filter_nc(&rth, print_addrinfo,
1757 stdout, NLM_F_DUMP_INTR) < 0) {
1758 fprintf(stderr, "Flush terminated\n");
1759 exit(1);
1760 }
1761 if (filter.flushed == 0) {
1762 flush_done:
1763 if (show_stats) {
1764 if (round == 0)
1765 printf("Nothing to flush.\n");
1766 else
1767 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
1768 }
1769 fflush(stdout);
1770 return 0;
1771 }
1772 round++;
1773 if (flush_update() < 0)
1774 return 1;
1775
1776 if (show_stats) {
1777 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1778 fflush(stdout);
1779 }
1780
1781 /* If we are flushing, and specifying primary, then we
1782 * want to flush only a single round. Otherwise, we'll
1783 * start flushing secondaries that were promoted to
1784 * primaries.
1785 */
1786 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1787 goto flush_done;
1788 }
1789 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1790 fflush(stderr);
1791 return 1;
1792 }
1793
1794 static int iplink_filter_req(struct nlmsghdr *nlh, int reqlen)
1795 {
1796 int err;
1797
1798 err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF);
1799 if (err)
1800 return err;
1801
1802 if (filter.master) {
1803 err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master);
1804 if (err)
1805 return err;
1806 }
1807
1808 if (filter.kind) {
1809 struct rtattr *linkinfo;
1810
1811 linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO);
1812
1813 err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind,
1814 strlen(filter.kind));
1815 if (err)
1816 return err;
1817
1818 addattr_nest_end(nlh, linkinfo);
1819 }
1820
1821 return 0;
1822 }
1823
1824 static int ipaddr_link_get(int index, struct nlmsg_chain *linfo)
1825 {
1826 struct iplink_req req = {
1827 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
1828 .n.nlmsg_flags = NLM_F_REQUEST,
1829 .n.nlmsg_type = RTM_GETLINK,
1830 .i.ifi_family = filter.family,
1831 .i.ifi_index = index,
1832 };
1833 __u32 filt_mask = RTEXT_FILTER_VF;
1834 struct nlmsghdr *answer;
1835
1836 if (!show_stats)
1837 filt_mask |= RTEXT_FILTER_SKIP_STATS;
1838
1839 addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
1840
1841 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
1842 perror("Cannot send link request");
1843 return 1;
1844 }
1845
1846 if (store_nlmsg(answer, linfo) < 0) {
1847 fprintf(stderr, "Failed to process link information\n");
1848 return 1;
1849 }
1850
1851 return 0;
1852 }
1853
1854 /* fills in linfo with link data and optionally ainfo with address info
1855 * caller can walk lists as desired and must call free_nlmsg_chain for
1856 * both when done
1857 */
1858 int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo)
1859 {
1860 if (rtnl_linkdump_req_filter_fn(&rth, preferred_family,
1861 filter_fn) < 0) {
1862 perror("Cannot send dump request");
1863 return 1;
1864 }
1865
1866 if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) {
1867 fprintf(stderr, "Dump terminated\n");
1868 return 1;
1869 }
1870
1871 return 0;
1872 }
1873
1874 static int ip_addr_list(struct nlmsg_chain *ainfo)
1875 {
1876 if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) {
1877 perror("Cannot send dump request");
1878 return 1;
1879 }
1880
1881 if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) {
1882 fprintf(stderr, "Dump terminated\n");
1883 return 1;
1884 }
1885
1886 return 0;
1887 }
1888
1889 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1890 {
1891 struct nlmsg_chain linfo = { NULL, NULL};
1892 struct nlmsg_chain _ainfo = { NULL, NULL}, *ainfo = &_ainfo;
1893 struct nlmsg_list *l;
1894 char *filter_dev = NULL;
1895 int no_link = 0;
1896
1897 ipaddr_reset_filter(oneline, 0);
1898 filter.showqueue = 1;
1899 filter.family = preferred_family;
1900
1901 if (action == IPADD_FLUSH) {
1902 if (argc <= 0) {
1903 fprintf(stderr, "Flush requires arguments.\n");
1904
1905 return -1;
1906 }
1907 if (filter.family == AF_PACKET) {
1908 fprintf(stderr, "Cannot flush link addresses.\n");
1909 return -1;
1910 }
1911 }
1912
1913 while (argc > 0) {
1914 if (strcmp(*argv, "to") == 0) {
1915 NEXT_ARG();
1916 if (get_prefix(&filter.pfx, *argv, filter.family))
1917 invarg("invalid \"to\"\n", *argv);
1918 if (filter.family == AF_UNSPEC)
1919 filter.family = filter.pfx.family;
1920 } else if (strcmp(*argv, "scope") == 0) {
1921 unsigned int scope = 0;
1922
1923 NEXT_ARG();
1924 filter.scopemask = -1;
1925 if (rtnl_rtscope_a2n(&scope, *argv)) {
1926 if (strcmp(*argv, "all") != 0)
1927 invarg("invalid \"scope\"\n", *argv);
1928 scope = RT_SCOPE_NOWHERE;
1929 filter.scopemask = 0;
1930 }
1931 filter.scope = scope;
1932 } else if (strcmp(*argv, "up") == 0) {
1933 filter.up = 1;
1934 } else if (get_filter(*argv) == 0) {
1935
1936 } else if (strcmp(*argv, "label") == 0) {
1937 NEXT_ARG();
1938 filter.label = *argv;
1939 } else if (strcmp(*argv, "group") == 0) {
1940 NEXT_ARG();
1941 if (rtnl_group_a2n(&filter.group, *argv))
1942 invarg("Invalid \"group\" value\n", *argv);
1943 } else if (strcmp(*argv, "master") == 0) {
1944 int ifindex;
1945
1946 NEXT_ARG();
1947 ifindex = ll_name_to_index(*argv);
1948 if (!ifindex)
1949 invarg("Device does not exist\n", *argv);
1950 filter.master = ifindex;
1951 } else if (strcmp(*argv, "vrf") == 0) {
1952 int ifindex;
1953
1954 NEXT_ARG();
1955 ifindex = ll_name_to_index(*argv);
1956 if (!ifindex)
1957 invarg("Not a valid VRF name\n", *argv);
1958 if (!name_is_vrf(*argv))
1959 invarg("Not a valid VRF name\n", *argv);
1960 filter.master = ifindex;
1961 } else if (strcmp(*argv, "type") == 0) {
1962 int soff;
1963
1964 NEXT_ARG();
1965 soff = strlen(*argv) - strlen("_slave");
1966 if (!strcmp(*argv + soff, "_slave")) {
1967 (*argv)[soff] = '\0';
1968 filter.slave_kind = *argv;
1969 } else {
1970 filter.kind = *argv;
1971 }
1972 } else {
1973 if (strcmp(*argv, "dev") == 0)
1974 NEXT_ARG();
1975 else if (matches(*argv, "help") == 0)
1976 usage();
1977 if (filter_dev)
1978 duparg2("dev", *argv);
1979 filter_dev = *argv;
1980 }
1981 argv++; argc--;
1982 }
1983
1984 if (filter_dev) {
1985 filter.ifindex = ll_name_to_index(filter_dev);
1986 if (filter.ifindex <= 0) {
1987 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1988 return -1;
1989 }
1990 }
1991
1992 if (action == IPADD_FLUSH)
1993 return ipaddr_flush();
1994
1995 if (action == IPADD_SAVE) {
1996 if (ipadd_save_prep())
1997 exit(1);
1998
1999 if (rtnl_addrdump_req(&rth, preferred_family,
2000 ipaddr_dump_filter) < 0) {
2001 perror("Cannot send dump request");
2002 exit(1);
2003 }
2004
2005 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
2006 fprintf(stderr, "Save terminated\n");
2007 exit(1);
2008 }
2009
2010 exit(0);
2011 }
2012
2013 /*
2014 * Initialize a json_writer and open an array object
2015 * if -json was specified.
2016 */
2017 new_json_obj(json);
2018
2019 /*
2020 * If only filter_dev present and none of the other
2021 * link filters are present, use RTM_GETLINK to get
2022 * the link device
2023 */
2024 if (filter_dev && filter.group == -1 && do_link == 1) {
2025 if (iplink_get(filter_dev, RTEXT_FILTER_VF) < 0) {
2026 perror("Cannot send link get request");
2027 delete_json_obj();
2028 exit(1);
2029 }
2030 delete_json_obj();
2031 goto out;
2032 }
2033
2034 if (filter.ifindex) {
2035 if (ipaddr_link_get(filter.ifindex, &linfo) != 0)
2036 goto out;
2037 } else {
2038 if (ip_link_list(iplink_filter_req, &linfo) != 0)
2039 goto out;
2040 }
2041
2042 if (filter.family != AF_PACKET) {
2043 if (filter.oneline)
2044 no_link = 1;
2045
2046 if (ip_addr_list(ainfo) != 0)
2047 goto out;
2048
2049 ipaddr_filter(&linfo, ainfo);
2050 }
2051
2052 for (l = linfo.head; l; l = l->next) {
2053 struct nlmsghdr *n = &l->h;
2054 struct ifinfomsg *ifi = NLMSG_DATA(n);
2055 int res = 0;
2056
2057 open_json_object(NULL);
2058 if (brief || !no_link)
2059 res = print_linkinfo(n, stdout);
2060 if (res >= 0 && filter.family != AF_PACKET)
2061 print_selected_addrinfo(ifi, ainfo->head, stdout);
2062 if (res > 0 && !do_link && show_stats)
2063 print_link_stats(stdout, n);
2064 close_json_object();
2065 }
2066 fflush(stdout);
2067
2068 out:
2069 free_nlmsg_chain(ainfo);
2070 free_nlmsg_chain(&linfo);
2071 delete_json_obj();
2072 return 0;
2073 }
2074
2075 static void
2076 ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max)
2077 {
2078 struct rtattr *vflist = tb[IFLA_VFINFO_LIST];
2079 struct rtattr *i, *vf[IFLA_VF_MAX+1];
2080 struct ifla_vf_rate *vf_rate;
2081 int rem;
2082
2083 rem = RTA_PAYLOAD(vflist);
2084
2085 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
2086 parse_rtattr_nested(vf, IFLA_VF_MAX, i);
2087
2088 if (!vf[IFLA_VF_RATE]) {
2089 fprintf(stderr, "VF min/max rate API not supported\n");
2090 exit(1);
2091 }
2092
2093 vf_rate = RTA_DATA(vf[IFLA_VF_RATE]);
2094 if (vf_rate->vf == vfnum) {
2095 *min = vf_rate->min_tx_rate;
2096 *max = vf_rate->max_tx_rate;
2097 return;
2098 }
2099 }
2100 fprintf(stderr, "Cannot find VF %d\n", vfnum);
2101 exit(1);
2102 }
2103
2104 void ipaddr_get_vf_rate(int vfnum, int *min, int *max, const char *dev)
2105 {
2106 struct nlmsg_chain linfo = { NULL, NULL};
2107 struct rtattr *tb[IFLA_MAX+1];
2108 struct ifinfomsg *ifi;
2109 struct nlmsg_list *l;
2110 struct nlmsghdr *n;
2111 int idx, len;
2112
2113 idx = ll_name_to_index(dev);
2114 if (idx == 0) {
2115 fprintf(stderr, "Device %s does not exist\n", dev);
2116 exit(1);
2117 }
2118
2119 if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 0) {
2120 perror("Cannot send dump request");
2121 exit(1);
2122 }
2123 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
2124 fprintf(stderr, "Dump terminated\n");
2125 exit(1);
2126 }
2127 for (l = linfo.head; l; l = l->next) {
2128 n = &l->h;
2129 ifi = NLMSG_DATA(n);
2130
2131 len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
2132 if (len < 0 || (idx && idx != ifi->ifi_index))
2133 continue;
2134
2135 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
2136
2137 if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) {
2138 ipaddr_loop_each_vf(tb, vfnum, min, max);
2139 return;
2140 }
2141 }
2142 }
2143
2144 int ipaddr_list_link(int argc, char **argv)
2145 {
2146 preferred_family = AF_PACKET;
2147 do_link = 1;
2148 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
2149 }
2150
2151 void ipaddr_reset_filter(int oneline, int ifindex)
2152 {
2153 memset(&filter, 0, sizeof(filter));
2154 filter.oneline = oneline;
2155 filter.ifindex = ifindex;
2156 filter.group = -1;
2157 }
2158
2159 static int default_scope(inet_prefix *lcl)
2160 {
2161 if (lcl->family == AF_INET) {
2162 if (lcl->bytelen >= 1 && *(__u8 *)&lcl->data == 127)
2163 return RT_SCOPE_HOST;
2164 }
2165 return 0;
2166 }
2167
2168 static bool ipaddr_is_multicast(inet_prefix *a)
2169 {
2170 if (a->family == AF_INET)
2171 return IN_MULTICAST(ntohl(a->data[0]));
2172 else if (a->family == AF_INET6)
2173 return IN6_IS_ADDR_MULTICAST(a->data);
2174 else
2175 return false;
2176 }
2177
2178 static bool is_valid_label(const char *dev, const char *label)
2179 {
2180 size_t len = strlen(dev);
2181
2182 if (strncmp(label, dev, len) != 0)
2183 return false;
2184
2185 return label[len] == '\0' || label[len] == ':';
2186 }
2187
2188 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
2189 {
2190 struct {
2191 struct nlmsghdr n;
2192 struct ifaddrmsg ifa;
2193 char buf[256];
2194 } req = {
2195 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)),
2196 .n.nlmsg_flags = NLM_F_REQUEST | flags,
2197 .n.nlmsg_type = cmd,
2198 .ifa.ifa_family = preferred_family,
2199 };
2200 char *d = NULL;
2201 char *l = NULL;
2202 char *lcl_arg = NULL;
2203 char *valid_lftp = NULL;
2204 char *preferred_lftp = NULL;
2205 inet_prefix lcl = {};
2206 inet_prefix peer;
2207 int local_len = 0;
2208 int peer_len = 0;
2209 int brd_len = 0;
2210 int any_len = 0;
2211 int scoped = 0;
2212 __u32 preferred_lft = INFINITY_LIFE_TIME;
2213 __u32 valid_lft = INFINITY_LIFE_TIME;
2214 unsigned int ifa_flags = 0;
2215
2216 while (argc > 0) {
2217 if (strcmp(*argv, "peer") == 0 ||
2218 strcmp(*argv, "remote") == 0) {
2219 NEXT_ARG();
2220
2221 if (peer_len)
2222 duparg("peer", *argv);
2223 get_prefix(&peer, *argv, req.ifa.ifa_family);
2224 peer_len = peer.bytelen;
2225 if (req.ifa.ifa_family == AF_UNSPEC)
2226 req.ifa.ifa_family = peer.family;
2227 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
2228 req.ifa.ifa_prefixlen = peer.bitlen;
2229 } else if (matches(*argv, "broadcast") == 0 ||
2230 strcmp(*argv, "brd") == 0) {
2231 inet_prefix addr;
2232
2233 NEXT_ARG();
2234 if (brd_len)
2235 duparg("broadcast", *argv);
2236 if (strcmp(*argv, "+") == 0)
2237 brd_len = -1;
2238 else if (strcmp(*argv, "-") == 0)
2239 brd_len = -2;
2240 else {
2241 get_addr(&addr, *argv, req.ifa.ifa_family);
2242 if (req.ifa.ifa_family == AF_UNSPEC)
2243 req.ifa.ifa_family = addr.family;
2244 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
2245 brd_len = addr.bytelen;
2246 }
2247 } else if (strcmp(*argv, "anycast") == 0) {
2248 inet_prefix addr;
2249
2250 NEXT_ARG();
2251 if (any_len)
2252 duparg("anycast", *argv);
2253 get_addr(&addr, *argv, req.ifa.ifa_family);
2254 if (req.ifa.ifa_family == AF_UNSPEC)
2255 req.ifa.ifa_family = addr.family;
2256 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
2257 any_len = addr.bytelen;
2258 } else if (strcmp(*argv, "scope") == 0) {
2259 unsigned int scope = 0;
2260
2261 NEXT_ARG();
2262 if (rtnl_rtscope_a2n(&scope, *argv))
2263 invarg("invalid scope value.", *argv);
2264 req.ifa.ifa_scope = scope;
2265 scoped = 1;
2266 } else if (strcmp(*argv, "dev") == 0) {
2267 NEXT_ARG();
2268 d = *argv;
2269 } else if (strcmp(*argv, "label") == 0) {
2270 NEXT_ARG();
2271 l = *argv;
2272 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
2273 } else if (matches(*argv, "metric") == 0 ||
2274 matches(*argv, "priority") == 0 ||
2275 matches(*argv, "preference") == 0) {
2276 __u32 metric;
2277
2278 NEXT_ARG();
2279 if (get_u32(&metric, *argv, 0))
2280 invarg("\"metric\" value is invalid\n", *argv);
2281 addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric);
2282 } else if (matches(*argv, "valid_lft") == 0) {
2283 if (valid_lftp)
2284 duparg("valid_lft", *argv);
2285 NEXT_ARG();
2286 valid_lftp = *argv;
2287 if (set_lifetime(&valid_lft, *argv))
2288 invarg("valid_lft value", *argv);
2289 } else if (matches(*argv, "preferred_lft") == 0) {
2290 if (preferred_lftp)
2291 duparg("preferred_lft", *argv);
2292 NEXT_ARG();
2293 preferred_lftp = *argv;
2294 if (set_lifetime(&preferred_lft, *argv))
2295 invarg("preferred_lft value", *argv);
2296 } else if (strcmp(*argv, "home") == 0) {
2297 if (req.ifa.ifa_family == AF_INET6)
2298 ifa_flags |= IFA_F_HOMEADDRESS;
2299 else
2300 fprintf(stderr, "Warning: home option can be set only for IPv6 addresses\n");
2301 } else if (strcmp(*argv, "nodad") == 0) {
2302 if (req.ifa.ifa_family == AF_INET6)
2303 ifa_flags |= IFA_F_NODAD;
2304 else
2305 fprintf(stderr, "Warning: nodad option can be set only for IPv6 addresses\n");
2306 } else if (strcmp(*argv, "mngtmpaddr") == 0) {
2307 if (req.ifa.ifa_family == AF_INET6)
2308 ifa_flags |= IFA_F_MANAGETEMPADDR;
2309 else
2310 fprintf(stderr, "Warning: mngtmpaddr option can be set only for IPv6 addresses\n");
2311 } else if (strcmp(*argv, "noprefixroute") == 0) {
2312 ifa_flags |= IFA_F_NOPREFIXROUTE;
2313 } else if (strcmp(*argv, "autojoin") == 0) {
2314 ifa_flags |= IFA_F_MCAUTOJOIN;
2315 } else {
2316 if (strcmp(*argv, "local") == 0)
2317 NEXT_ARG();
2318 if (matches(*argv, "help") == 0)
2319 usage();
2320 if (local_len)
2321 duparg2("local", *argv);
2322 lcl_arg = *argv;
2323 get_prefix(&lcl, *argv, req.ifa.ifa_family);
2324 if (req.ifa.ifa_family == AF_UNSPEC)
2325 req.ifa.ifa_family = lcl.family;
2326 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
2327 local_len = lcl.bytelen;
2328 }
2329 argc--; argv++;
2330 }
2331 if (ifa_flags <= 0xff)
2332 req.ifa.ifa_flags = ifa_flags;
2333 else
2334 addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
2335
2336 if (d == NULL) {
2337 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
2338 return -1;
2339 }
2340 if (l && !is_valid_label(d, l)) {
2341 fprintf(stderr,
2342 "\"label\" (%s) must match \"dev\" (%s) or be prefixed by \"dev\" with a colon.\n",
2343 l, d);
2344 return -1;
2345 }
2346
2347 if (peer_len == 0 && local_len) {
2348 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
2349 fprintf(stderr,
2350 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n"
2351 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n"
2352 " This special behaviour is likely to disappear in further releases,\n"
2353 " fix your scripts!\n", lcl_arg, local_len*8);
2354 } else {
2355 peer = lcl;
2356 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
2357 }
2358 }
2359 if (req.ifa.ifa_prefixlen == 0)
2360 req.ifa.ifa_prefixlen = lcl.bitlen;
2361
2362 if (brd_len < 0 && cmd != RTM_DELADDR) {
2363 inet_prefix brd;
2364 int i;
2365
2366 if (req.ifa.ifa_family != AF_INET) {
2367 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
2368 return -1;
2369 }
2370 brd = peer;
2371 if (brd.bitlen <= 30) {
2372 for (i = 31; i >= brd.bitlen; i--) {
2373 if (brd_len == -1)
2374 brd.data[0] |= htonl(1<<(31-i));
2375 else
2376 brd.data[0] &= ~htonl(1<<(31-i));
2377 }
2378 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
2379 brd_len = brd.bytelen;
2380 }
2381 }
2382 if (!scoped && cmd != RTM_DELADDR)
2383 req.ifa.ifa_scope = default_scope(&lcl);
2384
2385 req.ifa.ifa_index = ll_name_to_index(d);
2386 if (!req.ifa.ifa_index)
2387 return nodev(d);
2388
2389 if (valid_lftp || preferred_lftp) {
2390 struct ifa_cacheinfo cinfo = {};
2391
2392 if (!valid_lft) {
2393 fprintf(stderr, "valid_lft is zero\n");
2394 return -1;
2395 }
2396 if (valid_lft < preferred_lft) {
2397 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
2398 return -1;
2399 }
2400
2401 cinfo.ifa_prefered = preferred_lft;
2402 cinfo.ifa_valid = valid_lft;
2403 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
2404 sizeof(cinfo));
2405 }
2406
2407 if ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) {
2408 fprintf(stderr, "autojoin needs multicast address\n");
2409 return -1;
2410 }
2411
2412 if (rtnl_talk(&rth, &req.n, NULL) < 0)
2413 return -2;
2414
2415 return 0;
2416 }
2417
2418 int do_ipaddr(int argc, char **argv)
2419 {
2420 if (argc < 1)
2421 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
2422 if (matches(*argv, "add") == 0)
2423 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
2424 if (matches(*argv, "change") == 0 ||
2425 strcmp(*argv, "chg") == 0)
2426 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
2427 if (matches(*argv, "replace") == 0)
2428 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
2429 if (matches(*argv, "delete") == 0)
2430 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
2431 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2432 || matches(*argv, "lst") == 0)
2433 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
2434 if (matches(*argv, "flush") == 0)
2435 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
2436 if (matches(*argv, "save") == 0)
2437 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
2438 if (matches(*argv, "showdump") == 0)
2439 return ipaddr_showdump();
2440 if (matches(*argv, "restore") == 0)
2441 return ipaddr_restore();
2442 if (matches(*argv, "help") == 0)
2443 usage();
2444 fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
2445 exit(-1);
2446 }
Upstream mirror of iproute2