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ip: allow to specify mode for sit tunnels
[mirror_iproute2.git] / ip / ipaddress.c
CommitLineData
aba5acdf
SH		 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 *
aba5acdf
SH		 11 */
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
16#include <syslog.h>
e6e6fb5c 17#include <inttypes.h>
aba5acdf
SH		 18#include <fcntl.h>
19#include <sys/ioctl.h>
20#include <sys/socket.h>
21#include <sys/ioctl.h>
5bd9dd49 22#include <errno.h>
aba5acdf
SH		 23#include <netinet/in.h>
24#include <arpa/inet.h>
25#include <string.h>
26#include <fnmatch.h>
27
e5779fb2
SH		 28#include <linux/netdevice.h>
29#include <linux/if_arp.h>
30#include <linux/sockios.h>
31
aba5acdf
SH		 32#include "rt_names.h"
33#include "utils.h"
34#include "ll_map.h"
35#include "ip_common.h"
36
81824ac2
PE		 37enum {
38 IPADD_LIST,
39 IPADD_FLUSH,
40 IPADD_SAVE,
41};
7b3d366e 42
aba5acdf
SH		 43static struct
44{
45 int ifindex;
46 int family;
47 int oneline;
48 int showqueue;
49 inet_prefix pfx;
50 int scope, scopemask;
51 int flags, flagmask;
52 int up;
53 char *label;
54 int flushed;
55 char *flushb;
56 int flushp;
57 int flushe;
f960c92a 58 int group;
aba5acdf
SH		 59} filter;
60
61static int do_link;
62
63static void usage(void) __attribute__((noreturn));
64
65static void usage(void)
66{
67 if (do_link) {
68 iplink_usage();
69 }
0aef366b 70 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
a1f27794 71 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
35546df7 72 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
81824ac2 73 fprintf(stderr, " ip addr {show|save|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
44051234 74 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ] [up]\n");
81824ac2 75 fprintf(stderr, " ip addr {showdump|restore}\n");
aba5acdf
SH		 76 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
77 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
78 fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
79 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
80 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
81 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
a1b9ffcc 82 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
a1f27794 83 fprintf(stderr, " CONFFLAG-LIST ]\n");
bac735c5
NT		 84 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
85 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
35546df7
MN		 86 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
87 fprintf(stderr, "LFT := forever | SECONDS\n");
88
aba5acdf
SH		 89 exit(-1);
90}
91
d1f28cf1 92static void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
aba5acdf
SH		 93{
94 fprintf(fp, "<");
73b49e9f 95 if (flags & IFF_UP && !(flags & IFF_RUNNING))
96 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
aba5acdf
SH		 97 flags &= ~IFF_RUNNING;
98#define _PF(f) if (flags&IFF_##f) { \
1124ffb7
SH		 99 flags &= ~IFF_##f ; \
100 fprintf(fp, #f "%s", flags ? "," : ""); }
aba5acdf
SH		 101 _PF(LOOPBACK);
102 _PF(BROADCAST);
103 _PF(POINTOPOINT);
104 _PF(MULTICAST);
105 _PF(NOARP);
106 _PF(ALLMULTI);
107 _PF(PROMISC);
108 _PF(MASTER);
109 _PF(SLAVE);
110 _PF(DEBUG);
111 _PF(DYNAMIC);
112 _PF(AUTOMEDIA);
113 _PF(PORTSEL);
114 _PF(NOTRAILERS);
115 _PF(UP);
dcb283c3
TG		 116 _PF(LOWER_UP);
117 _PF(DORMANT);
98f9a1d2 118 _PF(ECHO);
aba5acdf 119#undef _PF
1124ffb7 120 if (flags)
aba5acdf
SH		 121 fprintf(fp, "%x", flags);
122 if (mdown)
123 fprintf(fp, ",M-DOWN");
124 fprintf(fp, "> ");
125}
126
3d866ba2
SH		 127static const char *oper_states[] = {
128 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
129 "TESTING", "DORMANT", "UP"
130};
131
132static void print_operstate(FILE *f, __u8 state)
133{
134 if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
135 fprintf(f, "state %#x ", state);
136 else
137 fprintf(f, "state %s ", oper_states[state]);
138}
139
4f2fdd44
SH		 140int get_operstate(const char *name)
141{
142 int i;
143
144 for (i = 0; i < sizeof(oper_states)/sizeof(oper_states[0]); i++)
145 if (strcasecmp(name, oper_states[i]) == 0)
146 return i;
147 return -1;
148}
149
f78e316f 150static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
aba5acdf 151{
f78e316f
ED		 152 int qlen;
153
154 if (tb[IFLA_TXQLEN])
155 qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
156 else {
157 struct ifreq ifr;
158 int s = socket(AF_INET, SOCK_STREAM, 0);
159
160 if (s < 0)
161 return;
162
163 memset(&ifr, 0, sizeof(ifr));
ff24746c 164 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
f78e316f 165 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
d3603518 166 fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
f78e316f
ED		 167 close(s);
168 return;
169 }
aba5acdf 170 close(s);
f78e316f 171 qlen = ifr.ifr_qlen;
aba5acdf 172 }
f78e316f
ED		 173 if (qlen)
174 fprintf(f, "qlen %d", qlen);
aba5acdf
SH		 175}
176
82499282
SH		 177static const char *link_modes[] = {
178 "DEFAULT", "DORMANT"
179};
180
181static void print_linkmode(FILE *f, struct rtattr *tb)
182{
183 unsigned int mode = rta_getattr_u8(tb);
184
185 if (mode >= sizeof(link_modes) / sizeof(link_modes[0]))
186 fprintf(f, "mode %d ", mode);
187 else
188 fprintf(f, "mode %s ", link_modes[mode]);
189}
190
1d934839
PM		 191static void print_linktype(FILE *fp, struct rtattr *tb)
192{
193 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
194 struct link_util *lu;
195 char *kind;
196
197 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
198
199 if (!linkinfo[IFLA_INFO_KIND])
200 return;
201 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
202
203 fprintf(fp, "%s", _SL_);
204 fprintf(fp, " %s ", kind);
205
206 lu = get_link_kind(kind);
207 if (!lu || !lu->print_opt)
208 return;
209
210 if (1) {
211 struct rtattr *attr[lu->maxattr+1], **data = NULL;
212
213 if (linkinfo[IFLA_INFO_DATA]) {
214 parse_rtattr_nested(attr, lu->maxattr,
215 linkinfo[IFLA_INFO_DATA]);
216 data = attr;
217 }
218 lu->print_opt(lu, fp, data);
219
220 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
221 lu->print_xstats)
222 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
223 }
224}
225
3fd86630
CW		 226static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
227{
228 struct ifla_vf_mac *vf_mac;
229 struct ifla_vf_vlan *vf_vlan;
230 struct ifla_vf_tx_rate *vf_tx_rate;
7b8179c7 231 struct ifla_vf_spoofchk *vf_spoofchk;
07fa9c15 232 struct ifla_vf_link_state *vf_linkstate;
3fd86630 233 struct rtattr *vf[IFLA_VF_MAX+1];
7b8179c7 234 struct rtattr *tmp;
3fd86630
CW		 235 SPRINT_BUF(b1);
236
237 if (vfinfo->rta_type != IFLA_VF_INFO) {
238 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
239 return;
240 }
241
242 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
243
244 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
245 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
246 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
247
7b8179c7
GR		 248 /* Check if the spoof checking vf info type is supported by
249 * this kernel.
250 */
251 tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
252 vf[IFLA_VF_TX_RATE]->rta_len);
253
254 if (tmp->rta_type != IFLA_VF_SPOOFCHK)
255 vf_spoofchk = NULL;
256 else
257 vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
258
07fa9c15
RE		 259 if (vf_spoofchk) {
260 /* Check if the link state vf info type is supported by
261 * this kernel.
262 */
263 tmp = (struct rtattr *)((char *)vf[IFLA_VF_SPOOFCHK] +
264 vf[IFLA_VF_SPOOFCHK]->rta_len);
265
266 if (tmp->rta_type != IFLA_VF_LINK_STATE)
267 vf_linkstate = NULL;
268 else
269 vf_linkstate = RTA_DATA(vf[IFLA_VF_LINK_STATE]);
270 } else
271 vf_linkstate = NULL;
272
3fd86630
CW		 273 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
274 ll_addr_n2a((unsigned char *)&vf_mac->mac,
275 ETH_ALEN, 0, b1, sizeof(b1)));
276 if (vf_vlan->vlan)
277 fprintf(fp, ", vlan %d", vf_vlan->vlan);
278 if (vf_vlan->qos)
279 fprintf(fp, ", qos %d", vf_vlan->qos);
280 if (vf_tx_rate->rate)
281 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
7b8179c7
GR		 282 if (vf_spoofchk && vf_spoofchk->setting != -1) {
283 if (vf_spoofchk->setting)
284 fprintf(fp, ", spoof checking on");
285 else
286 fprintf(fp, ", spoof checking off");
287 }
07fa9c15
RE		 288 if (vf_linkstate) {
289 if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
290 fprintf(fp, ", link-state auto");
291 else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
292 fprintf(fp, ", link-state enable");
293 else
294 fprintf(fp, ", link-state disable");
295 }
3fd86630
CW		 296}
297
e6e6fb5c
SH		 298static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s) {
299 fprintf(fp, "%s", _SL_);
300 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
301 s->rx_compressed ? "compressed" : "", _SL_);
302 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
303 (uint64_t)s->rx_bytes,
304 (uint64_t)s->rx_packets,
305 (uint64_t)s->rx_errors,
306 (uint64_t)s->rx_dropped,
307 (uint64_t)s->rx_over_errors,
308 (uint64_t)s->multicast);
309 if (s->rx_compressed)
310 fprintf(fp, " %-7"PRIu64"",
311 (uint64_t)s->rx_compressed);
312 if (show_stats > 1) {
313 fprintf(fp, "%s", _SL_);
314 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
315 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
316 (uint64_t)s->rx_length_errors,
317 (uint64_t)s->rx_crc_errors,
318 (uint64_t)s->rx_frame_errors,
319 (uint64_t)s->rx_fifo_errors,
320 (uint64_t)s->rx_missed_errors);
321 }
322 fprintf(fp, "%s", _SL_);
323 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
324 (uint64_t)s->tx_compressed ? "compressed" : "", _SL_);
325 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
326 (uint64_t)s->tx_bytes,
327 (uint64_t)s->tx_packets,
328 (uint64_t)s->tx_errors,
329 (uint64_t)s->tx_dropped,
330 (uint64_t)s->tx_carrier_errors,
331 (uint64_t)s->collisions);
332 if (s->tx_compressed)
333 fprintf(fp, " %-7"PRIu64"",
334 (uint64_t)s->tx_compressed);
335 if (show_stats > 1) {
336 fprintf(fp, "%s", _SL_);
337 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
338 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
339 (uint64_t)s->tx_aborted_errors,
340 (uint64_t)s->tx_fifo_errors,
341 (uint64_t)s->tx_window_errors,
342 (uint64_t)s->tx_heartbeat_errors);
343 }
344}
345
346static void print_link_stats(FILE *fp, const struct rtnl_link_stats *s)
347{
348 fprintf(fp, "%s", _SL_);
349 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
350 s->rx_compressed ? "compressed" : "", _SL_);
351 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
352 s->rx_bytes, s->rx_packets, s->rx_errors,
353 s->rx_dropped, s->rx_over_errors,
354 s->multicast
355 );
356 if (s->rx_compressed)
357 fprintf(fp, " %-7u", s->rx_compressed);
358 if (show_stats > 1) {
359 fprintf(fp, "%s", _SL_);
360 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
361 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
362 s->rx_length_errors,
363 s->rx_crc_errors,
364 s->rx_frame_errors,
365 s->rx_fifo_errors,
366 s->rx_missed_errors
367 );
368 }
369 fprintf(fp, "%s", _SL_);
370 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
371 s->tx_compressed ? "compressed" : "", _SL_);
372 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
373 s->tx_bytes, s->tx_packets, s->tx_errors,
374 s->tx_dropped, s->tx_carrier_errors, s->collisions);
375 if (s->tx_compressed)
376 fprintf(fp, " %-7u", s->tx_compressed);
377 if (show_stats > 1) {
378 fprintf(fp, "%s", _SL_);
379 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
380 fprintf(fp, " %-7u %-7u %-7u %-7u",
381 s->tx_aborted_errors,
382 s->tx_fifo_errors,
383 s->tx_window_errors,
384 s->tx_heartbeat_errors
385 );
386 }
387}
388
ae665a52 389int print_linkinfo(const struct sockaddr_nl *who,
50772dc5 390 struct nlmsghdr *n, void *arg)
aba5acdf
SH		 391{
392 FILE *fp = (FILE*)arg;
393 struct ifinfomsg *ifi = NLMSG_DATA(n);
394 struct rtattr * tb[IFLA_MAX+1];
395 int len = n->nlmsg_len;
396 unsigned m_flag = 0;
397
398 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
399 return 0;
400
401 len -= NLMSG_LENGTH(sizeof(*ifi));
402 if (len < 0)
403 return -1;
404
405 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
406 return 0;
407 if (filter.up && !(ifi->ifi_flags&IFF_UP))
408 return 0;
409
aba5acdf
SH		 410 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
411 if (tb[IFLA_IFNAME] == NULL) {
4cd23bdd 412 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
aba5acdf
SH		 413 }
414 if (filter.label &&
415 (!filter.family || filter.family == AF_PACKET) &&
416 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
417 return 0;
418
f960c92a
VD		 419 if (tb[IFLA_GROUP]) {
420 int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
421 if (group != filter.group)
422 return -1;
423 }
424
aba5acdf
SH		 425 if (n->nlmsg_type == RTM_DELLINK)
426 fprintf(fp, "Deleted ");
427
428 fprintf(fp, "%d: %s", ifi->ifi_index,
ff24746c 429 tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
aba5acdf
SH		 430
431 if (tb[IFLA_LINK]) {
432 SPRINT_BUF(b1);
433 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
434 if (iflink == 0)
435 fprintf(fp, "@NONE: ");
436 else {
437 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
438 m_flag = ll_index_to_flags(iflink);
439 m_flag = !(m_flag & IFF_UP);
440 }
441 } else {
442 fprintf(fp, ": ");
443 }
444 print_link_flags(fp, ifi->ifi_flags, m_flag);
445
446 if (tb[IFLA_MTU])
447 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
448 if (tb[IFLA_QDISC])
ff24746c 449 fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
aba5acdf
SH		 450 if (tb[IFLA_MASTER]) {
451 SPRINT_BUF(b1);
452 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
453 }
82499282 454
3d866ba2 455 if (tb[IFLA_OPERSTATE])
ff24746c 456 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
82499282
SH		 457
458 if (do_link && tb[IFLA_LINKMODE])
459 print_linkmode(fp, tb[IFLA_LINKMODE]);
460
aba5acdf 461 if (filter.showqueue)
f78e316f 462 print_queuelen(fp, tb);
ae665a52 463
aba5acdf
SH		 464 if (!filter.family || filter.family == AF_PACKET) {
465 SPRINT_BUF(b1);
466 fprintf(fp, "%s", _SL_);
467 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
468
469 if (tb[IFLA_ADDRESS]) {
470 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
471 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
472 ifi->ifi_type,
473 b1, sizeof(b1)));
474 }
475 if (tb[IFLA_BROADCAST]) {
476 if (ifi->ifi_flags&IFF_POINTOPOINT)
477 fprintf(fp, " peer ");
478 else
479 fprintf(fp, " brd ");
480 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
481 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
482 ifi->ifi_type,
483 b1, sizeof(b1)));
484 }
485 }
1d934839 486
ede6a3ea 487 if (do_link && tb[IFLA_PROMISCUITY] && show_details)
1cb6a110 488 fprintf(fp, " promiscuity %u ",
ede6a3ea
ND		 489 *(int*)RTA_DATA(tb[IFLA_PROMISCUITY]));
490
1cb6a110
SH		 491 if (do_link && tb[IFLA_LINKINFO] && show_details)
492 print_linktype(fp, tb[IFLA_LINKINFO]);
493
263c894f 494 if (do_link && tb[IFLA_IFALIAS]) {
1124ffb7 495 fprintf(fp, "%s alias %s", _SL_,
ff24746c 496 rta_getattr_str(tb[IFLA_IFALIAS]));
263c894f 497 }
ace9c961 498
e6e6fb5c
SH		 499 if (do_link && show_stats) {
500 if (tb[IFLA_STATS64])
501 print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
502 else if (tb[IFLA_STATS])
503 print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
ae7229d5 504 }
e6e6fb5c 505
3fd86630
CW		 506 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
507 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
508 int rem = RTA_PAYLOAD(vflist);
509 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
510 print_vfinfo(fp, i);
aba5acdf 511 }
3fd86630 512
aba5acdf
SH		 513 fprintf(fp, "\n");
514 fflush(fp);
515 return 0;
516}
517
518static int flush_update(void)
519{
f31a37f7 520 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
1fb0a998 521 perror("Failed to send flush request");
aba5acdf
SH		 522 return -1;
523 }
524 filter.flushp = 0;
525 return 0;
526}
527
35546df7
MN		 528static int set_lifetime(unsigned int *lifetime, char *argv)
529{
530 if (strcmp(argv, "forever") == 0)
141bb606 531 *lifetime = INFINITY_LIFE_TIME;
35546df7
MN		 532 else if (get_u32(lifetime, argv, 0))
533 return -1;
534
535 return 0;
536}
537
ae665a52 538int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
6dc9f016 539 void *arg)
aba5acdf
SH		 540{
541 FILE *fp = (FILE*)arg;
542 struct ifaddrmsg *ifa = NLMSG_DATA(n);
543 int len = n->nlmsg_len;
037d950b 544 int deprecated = 0;
3bc1c4f2
BG		 545 /* Use local copy of ifa_flags to not interfere with filtering code */
546 unsigned int ifa_flags;
aba5acdf
SH		 547 struct rtattr * rta_tb[IFA_MAX+1];
548 char abuf[256];
549 SPRINT_BUF(b1);
550
551 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
552 return 0;
553 len -= NLMSG_LENGTH(sizeof(*ifa));
554 if (len < 0) {
555 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
556 return -1;
557 }
558
559 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
560 return 0;
561
aba5acdf
SH		 562 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
563
564 if (!rta_tb[IFA_LOCAL])
565 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
566 if (!rta_tb[IFA_ADDRESS])
567 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
568
569 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
570 return 0;
571 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
572 return 0;
573 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
574 return 0;
575 if (filter.label) {
576 SPRINT_BUF(b1);
577 const char *label;
578 if (rta_tb[IFA_LABEL])
579 label = RTA_DATA(rta_tb[IFA_LABEL]);
580 else
581 label = ll_idx_n2a(ifa->ifa_index, b1);
582 if (fnmatch(filter.label, label, 0) != 0)
583 return 0;
584 }
585 if (filter.pfx.family) {
586 if (rta_tb[IFA_LOCAL]) {
587 inet_prefix dst;
588 memset(&dst, 0, sizeof(dst));
589 dst.family = ifa->ifa_family;
590 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
591 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
592 return 0;
593 }
594 }
595
3eb1731b 596 if (filter.family && filter.family != ifa->ifa_family)
597 return 0;
598
aba5acdf
SH		 599 if (filter.flushb) {
600 struct nlmsghdr *fn;
601 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
602 if (flush_update())
603 return -1;
604 }
605 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
606 memcpy(fn, n, n->nlmsg_len);
607 fn->nlmsg_type = RTM_DELADDR;
608 fn->nlmsg_flags = NLM_F_REQUEST;
351efcde 609 fn->nlmsg_seq = ++rth.seq;
aba5acdf
SH		 610 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
611 filter.flushed++;
612 if (show_stats < 2)
613 return 0;
614 }
615
616 if (n->nlmsg_type == RTM_DELADDR)
617 fprintf(fp, "Deleted ");
618
619 if (filter.oneline || filter.flushb)
620 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
621 if (ifa->ifa_family == AF_INET)
622 fprintf(fp, " inet ");
623 else if (ifa->ifa_family == AF_INET6)
624 fprintf(fp, " inet6 ");
625 else if (ifa->ifa_family == AF_DECnet)
626 fprintf(fp, " dnet ");
627 else if (ifa->ifa_family == AF_IPX)
628 fprintf(fp, " ipx ");
629 else
630 fprintf(fp, " family %d ", ifa->ifa_family);
631
632 if (rta_tb[IFA_LOCAL]) {
633 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
634 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
635 RTA_DATA(rta_tb[IFA_LOCAL]),
636 abuf, sizeof(abuf)));
637
638 if (rta_tb[IFA_ADDRESS] == NULL ||
973eb50b
ND		 639 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]),
640 ifa->ifa_family == AF_INET ? 4 : 16) == 0) {
aba5acdf
SH		 641 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
642 } else {
643 fprintf(fp, " peer %s/%d ",
644 rt_addr_n2a(ifa->ifa_family,
645 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
646 RTA_DATA(rta_tb[IFA_ADDRESS]),
647 abuf, sizeof(abuf)),
648 ifa->ifa_prefixlen);
649 }
650 }
651
652 if (rta_tb[IFA_BROADCAST]) {
653 fprintf(fp, "brd %s ",
654 rt_addr_n2a(ifa->ifa_family,
655 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
656 RTA_DATA(rta_tb[IFA_BROADCAST]),
657 abuf, sizeof(abuf)));
658 }
659 if (rta_tb[IFA_ANYCAST]) {
660 fprintf(fp, "any %s ",
661 rt_addr_n2a(ifa->ifa_family,
662 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
663 RTA_DATA(rta_tb[IFA_ANYCAST]),
664 abuf, sizeof(abuf)));
665 }
666 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
3bc1c4f2 667 ifa_flags = ifa->ifa_flags;
aba5acdf 668 if (ifa->ifa_flags&IFA_F_SECONDARY) {
3bc1c4f2 669 ifa_flags &= ~IFA_F_SECONDARY;
a1b9ffcc
BH		 670 if (ifa->ifa_family == AF_INET6)
671 fprintf(fp, "temporary ");
672 else
673 fprintf(fp, "secondary ");
aba5acdf
SH		 674 }
675 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
3bc1c4f2 676 ifa_flags &= ~IFA_F_TENTATIVE;
aba5acdf
SH		 677 fprintf(fp, "tentative ");
678 }
679 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
3bc1c4f2 680 ifa_flags &= ~IFA_F_DEPRECATED;
037d950b 681 deprecated = 1;
aba5acdf
SH		 682 fprintf(fp, "deprecated ");
683 }
bac735c5 684 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
3bc1c4f2 685 ifa_flags &= ~IFA_F_HOMEADDRESS;
bac735c5
NT		 686 fprintf(fp, "home ");
687 }
688 if (ifa->ifa_flags&IFA_F_NODAD) {
3bc1c4f2 689 ifa_flags &= ~IFA_F_NODAD;
bac735c5
NT		 690 fprintf(fp, "nodad ");
691 }
aba5acdf
SH		 692 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
693 fprintf(fp, "dynamic ");
694 } else
3bc1c4f2 695 ifa_flags &= ~IFA_F_PERMANENT;
f4af851b 696 if (ifa->ifa_flags&IFA_F_DADFAILED) {
3bc1c4f2 697 ifa_flags &= ~IFA_F_DADFAILED;
f4af851b
BH		 698 fprintf(fp, "dadfailed ");
699 }
3bc1c4f2
BG		 700 if (ifa_flags)
701 fprintf(fp, "flags %02x ", ifa_flags);
aba5acdf 702 if (rta_tb[IFA_LABEL])
ff24746c 703 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
aba5acdf
SH		 704 if (rta_tb[IFA_CACHEINFO]) {
705 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
aba5acdf 706 fprintf(fp, "%s", _SL_);
f66efadd 707 fprintf(fp, " valid_lft ");
141bb606 708 if (ci->ifa_valid == INFINITY_LIFE_TIME)
f66efadd 709 fprintf(fp, "forever");
aba5acdf 710 else
f66efadd
AS		 711 fprintf(fp, "%usec", ci->ifa_valid);
712 fprintf(fp, " preferred_lft ");
141bb606 713 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
f66efadd 714 fprintf(fp, "forever");
037d950b
BG		 715 else {
716 if (deprecated)
f66efadd 717 fprintf(fp, "%dsec", ci->ifa_prefered);
037d950b 718 else
f66efadd 719 fprintf(fp, "%usec", ci->ifa_prefered);
037d950b 720 }
aba5acdf
SH		 721 }
722 fprintf(fp, "\n");
723 fflush(fp);
724 return 0;
725}
726
d1f28cf1
SH		 727static int print_addrinfo_primary(const struct sockaddr_nl *who,
728 struct nlmsghdr *n, void *arg)
b49240ec
SH		 729{
730 struct ifaddrmsg *ifa = NLMSG_DATA(n);
731
3bc1c4f2 732 if (ifa->ifa_flags & IFA_F_SECONDARY)
b49240ec
SH		 733 return 0;
734
735 return print_addrinfo(who, n, arg);
736}
737
d1f28cf1
SH		 738static int print_addrinfo_secondary(const struct sockaddr_nl *who,
739 struct nlmsghdr *n, void *arg)
b49240ec
SH		 740{
741 struct ifaddrmsg *ifa = NLMSG_DATA(n);
742
3bc1c4f2 743 if (!(ifa->ifa_flags & IFA_F_SECONDARY))
b49240ec
SH		 744 return 0;
745
746 return print_addrinfo(who, n, arg);
747}
aba5acdf
SH		 748
749struct nlmsg_list
750{
751 struct nlmsg_list *next;
752 struct nlmsghdr h;
753};
754
62e2e540
ED		 755struct nlmsg_chain
756{
757 struct nlmsg_list *head;
758 struct nlmsg_list *tail;
759};
760
3d866ba2 761static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
aba5acdf
SH		 762{
763 for ( ;ainfo ; ainfo = ainfo->next) {
764 struct nlmsghdr *n = &ainfo->h;
765 struct ifaddrmsg *ifa = NLMSG_DATA(n);
766
767 if (n->nlmsg_type != RTM_NEWADDR)
768 continue;
769
770 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
771 return -1;
772
ae665a52 773 if (ifa->ifa_index != ifindex ||
aba5acdf
SH		 774 (filter.family && filter.family != ifa->ifa_family))
775 continue;
776
777 print_addrinfo(NULL, n, fp);
778 }
779 return 0;
780}
781
782
ae665a52 783static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
6dc9f016 784 void *arg)
aba5acdf 785{
62e2e540 786 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
aba5acdf 787 struct nlmsg_list *h;
aba5acdf
SH		 788
789 h = malloc(n->nlmsg_len+sizeof(void*));
790 if (h == NULL)
791 return -1;
792
793 memcpy(&h->h, n, n->nlmsg_len);
794 h->next = NULL;
795
62e2e540
ED		 796 if (lchain->tail)
797 lchain->tail->next = h;
798 else
799 lchain->head = h;
800 lchain->tail = h;
aba5acdf
SH		 801
802 ll_remember_index(who, n, NULL);
803 return 0;
804}
805
81824ac2
PE		 806static __u32 ipadd_dump_magic = 0x47361222;
807
808static int ipadd_save_prep(void)
809{
810 int ret;
811
812 if (isatty(STDOUT_FILENO)) {
14645ec2 813 fprintf(stderr, "Not sending a binary stream to stdout\n");
81824ac2
PE		 814 return -1;
815 }
816
817 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
818 if (ret != sizeof(ipadd_dump_magic)) {
819 fprintf(stderr, "Can't write magic to dump file\n");
820 return -1;
821 }
822
823 return 0;
824}
825
826static int ipadd_dump_check_magic(void)
827{
828 int ret;
829 __u32 magic = 0;
830
831 if (isatty(STDIN_FILENO)) {
832 fprintf(stderr, "Can't restore addr dump from a terminal\n");
833 return -1;
834 }
835
836 ret = fread(&magic, sizeof(magic), 1, stdin);
837 if (magic != ipadd_dump_magic) {
838 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
839 return -1;
840 }
841
842 return 0;
843}
844
845static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
846 void *arg)
847{
848 int ret;
849
850 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
851 if ((ret > 0) && (ret != n->nlmsg_len)) {
852 fprintf(stderr, "Short write while saving nlmsg\n");
853 ret = -EIO;
854 }
855
856 return ret == n->nlmsg_len ? 0 : ret;
857}
858
859static int show_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
860{
861 struct ifaddrmsg *ifa = NLMSG_DATA(n);
862
863 printf("if%d:\n", ifa->ifa_index);
864 print_addrinfo(NULL, n, stdout);
865 return 0;
866}
867
868static int ipaddr_showdump(void)
869{
870 if (ipadd_dump_check_magic())
871 exit(-1);
872
873 exit(rtnl_from_file(stdin, &show_handler, NULL));
874}
875
876static int restore_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
877{
878 int ret;
879
880 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
881
882 ll_init_map(&rth);
883
884 ret = rtnl_talk(&rth, n, 0, 0, n);
885 if ((ret < 0) && (errno == EEXIST))
886 ret = 0;
887
888 return ret;
889}
890
891static int ipaddr_restore(void)
892{
893 if (ipadd_dump_check_magic())
894 exit(-1);
895
896 exit(rtnl_from_file(stdin, &restore_handler, NULL));
897}
898
8d07e5f7
SH		 899static void free_nlmsg_chain(struct nlmsg_chain *info)
900{
901 struct nlmsg_list *l, *n;
902
903 for (l = info->head; l; l = n) {
904 n = l->next;
905 free(l);
906 }
907}
908
909static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
910{
911 struct nlmsg_list *l, **lp;
912
913 lp = &linfo->head;
914 while ( (l = *lp) != NULL) {
915 int ok = 0;
7f747fd9 916 int missing_net_address = 1;
8d07e5f7
SH		 917 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
918 struct nlmsg_list *a;
919
920 for (a = ainfo->head; a; a = a->next) {
921 struct nlmsghdr *n = &a->h;
922 struct ifaddrmsg *ifa = NLMSG_DATA(n);
923
7f747fd9
PP		 924 if (ifa->ifa_index != ifi->ifi_index)
925 continue;
926 missing_net_address = 0;
927 if (filter.family && filter.family != ifa->ifa_family)
8d07e5f7
SH		 928 continue;
929 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
930 continue;
931 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
932 continue;
933 if (filter.pfx.family || filter.label) {
934 struct rtattr *tb[IFA_MAX+1];
935 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
936 if (!tb[IFA_LOCAL])
937 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
938
939 if (filter.pfx.family && tb[IFA_LOCAL]) {
940 inet_prefix dst;
941 memset(&dst, 0, sizeof(dst));
942 dst.family = ifa->ifa_family;
943 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
944 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
945 continue;
946 }
947 if (filter.label) {
948 SPRINT_BUF(b1);
949 const char *label;
950 if (tb[IFA_LABEL])
951 label = RTA_DATA(tb[IFA_LABEL]);
952 else
953 label = ll_idx_n2a(ifa->ifa_index, b1);
954 if (fnmatch(filter.label, label, 0) != 0)
955 continue;
956 }
957 }
958
959 ok = 1;
960 break;
961 }
7f747fd9
PP		 962 if (missing_net_address &&
963 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
964 ok = 1;
8d07e5f7
SH		 965 if (!ok) {
966 *lp = l->next;
967 free(l);
968 } else
969 lp = &l->next;
970 }
971}
972
973static int ipaddr_flush(void)
974{
975 int round = 0;
976 char flushb[4096-512];
977
978 filter.flushb = flushb;
979 filter.flushp = 0;
980 filter.flushe = sizeof(flushb);
981
982 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
983 const struct rtnl_dump_filter_arg a[3] = {
984 {
985 .filter = print_addrinfo_secondary,
986 .arg1 = stdout,
987 },
988 {
989 .filter = print_addrinfo_primary,
990 .arg1 = stdout,
991 },
992 {
993 .filter = NULL,
994 .arg1 = NULL,
995 },
996 };
997 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
998 perror("Cannot send dump request");
999 exit(1);
1000 }
1001 filter.flushed = 0;
1002 if (rtnl_dump_filter_l(&rth, a) < 0) {
1003 fprintf(stderr, "Flush terminated\n");
1004 exit(1);
1005 }
1006 if (filter.flushed == 0) {
1007 flush_done:
1008 if (show_stats) {
1009 if (round == 0)
1010 printf("Nothing to flush.\n");
1011 else
1012 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
1013 }
1014 fflush(stdout);
1015 return 0;
1016 }
1017 round++;
1018 if (flush_update() < 0)
1019 return 1;
1020
1021 if (show_stats) {
1022 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
1023 fflush(stdout);
1024 }
1025
1026 /* If we are flushing, and specifying primary, then we
1027 * want to flush only a single round. Otherwise, we'll
1028 * start flushing secondaries that were promoted to
1029 * primaries.
1030 */
1031 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1032 goto flush_done;
1033 }
1034 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1035 fflush(stderr);
1036 return 1;
1037}
1038
81824ac2 1039static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
aba5acdf 1040{
62e2e540
ED		 1041 struct nlmsg_chain linfo = { NULL, NULL};
1042 struct nlmsg_chain ainfo = { NULL, NULL};
8d07e5f7 1043 struct nlmsg_list *l;
aba5acdf
SH		 1044 char *filter_dev = NULL;
1045 int no_link = 0;
1046
1047 ipaddr_reset_filter(oneline);
1048 filter.showqueue = 1;
1049
1050 if (filter.family == AF_UNSPEC)
1051 filter.family = preferred_family;
1052
242b8da7 1053 filter.group = INIT_NETDEV_GROUP;
f960c92a 1054
81824ac2 1055 if (action == IPADD_FLUSH) {
aba5acdf
SH		 1056 if (argc <= 0) {
1057 fprintf(stderr, "Flush requires arguments.\n");
f960c92a 1058
aba5acdf
SH		 1059 return -1;
1060 }
1061 if (filter.family == AF_PACKET) {
1062 fprintf(stderr, "Cannot flush link addresses.\n");
1063 return -1;
1064 }
1065 }
1066
1067 while (argc > 0) {
1068 if (strcmp(*argv, "to") == 0) {
1069 NEXT_ARG();
1070 get_prefix(&filter.pfx, *argv, filter.family);
1071 if (filter.family == AF_UNSPEC)
1072 filter.family = filter.pfx.family;
1073 } else if (strcmp(*argv, "scope") == 0) {
f332d169 1074 unsigned scope = 0;
aba5acdf
SH		 1075 NEXT_ARG();
1076 filter.scopemask = -1;
1077 if (rtnl_rtscope_a2n(&scope, *argv)) {
1078 if (strcmp(*argv, "all") != 0)
1079 invarg("invalid \"scope\"\n", *argv);
1080 scope = RT_SCOPE_NOWHERE;
1081 filter.scopemask = 0;
1082 }
1083 filter.scope = scope;
1084 } else if (strcmp(*argv, "up") == 0) {
1085 filter.up = 1;
1086 } else if (strcmp(*argv, "dynamic") == 0) {
1087 filter.flags &= ~IFA_F_PERMANENT;
1088 filter.flagmask |= IFA_F_PERMANENT;
1089 } else if (strcmp(*argv, "permanent") == 0) {
1090 filter.flags |= IFA_F_PERMANENT;
1091 filter.flagmask |= IFA_F_PERMANENT;
a1b9ffcc
BH		 1092 } else if (strcmp(*argv, "secondary") == 0 ||
1093 strcmp(*argv, "temporary") == 0) {
aba5acdf
SH		 1094 filter.flags |= IFA_F_SECONDARY;
1095 filter.flagmask |= IFA_F_SECONDARY;
1096 } else if (strcmp(*argv, "primary") == 0) {
1097 filter.flags &= ~IFA_F_SECONDARY;
1098 filter.flagmask |= IFA_F_SECONDARY;
1099 } else if (strcmp(*argv, "tentative") == 0) {
1100 filter.flags |= IFA_F_TENTATIVE;
1101 filter.flagmask |= IFA_F_TENTATIVE;
1102 } else if (strcmp(*argv, "deprecated") == 0) {
1103 filter.flags |= IFA_F_DEPRECATED;
1104 filter.flagmask |= IFA_F_DEPRECATED;
bac735c5
NT		 1105 } else if (strcmp(*argv, "home") == 0) {
1106 filter.flags |= IFA_F_HOMEADDRESS;
1107 filter.flagmask |= IFA_F_HOMEADDRESS;
1108 } else if (strcmp(*argv, "nodad") == 0) {
1109 filter.flags |= IFA_F_NODAD;
1110 filter.flagmask |= IFA_F_NODAD;
a1f27794
BH		 1111 } else if (strcmp(*argv, "dadfailed") == 0) {
1112 filter.flags |= IFA_F_DADFAILED;
1113 filter.flagmask |= IFA_F_DADFAILED;
aba5acdf
SH		 1114 } else if (strcmp(*argv, "label") == 0) {
1115 NEXT_ARG();
1116 filter.label = *argv;
f960c92a
VD		 1117 } else if (strcmp(*argv, "group") == 0) {
1118 NEXT_ARG();
1119 if (rtnl_group_a2n(&filter.group, *argv))
1120 invarg("Invalid \"group\" value\n", *argv);
aba5acdf
SH		 1121 } else {
1122 if (strcmp(*argv, "dev") == 0) {
1123 NEXT_ARG();
1124 }
1125 if (matches(*argv, "help") == 0)
1126 usage();
1127 if (filter_dev)
1128 duparg2("dev", *argv);
1129 filter_dev = *argv;
1130 }
1131 argv++; argc--;
1132 }
1133
aba5acdf
SH		 1134 if (filter_dev) {
1135 filter.ifindex = ll_name_to_index(filter_dev);
1136 if (filter.ifindex <= 0) {
1137 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1138 return -1;
1139 }
1140 }
1141
81824ac2 1142 if (action == IPADD_FLUSH)
8d07e5f7 1143 return ipaddr_flush();
351efcde 1144
81824ac2
PE		 1145 if (action == IPADD_SAVE) {
1146 if (ipadd_save_prep())
1147 exit(1);
1148
1149 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1150 perror("Cannot send dump request");
1151 exit(1);
1152 }
1153
1154 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1155 fprintf(stderr, "Save terminated\n");
1156 exit(1);
1157 }
1158
1159 exit(0);
1160 }
1161
8d07e5f7
SH		 1162 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
1163 perror("Cannot send dump request");
1164 exit(1);
1165 }
3bc1c4f2 1166
8d07e5f7
SH		 1167 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1168 fprintf(stderr, "Dump terminated\n");
1169 exit(1);
aba5acdf
SH		 1170 }
1171
af9d406f 1172 if (filter.family != AF_PACKET) {
8d07e5f7
SH		 1173 if (filter.oneline)
1174 no_link = 1;
1175
aba5acdf
SH		 1176 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1177 perror("Cannot send dump request");
1178 exit(1);
1179 }
1180
cd70f3f5 1181 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
aba5acdf
SH		 1182 fprintf(stderr, "Dump terminated\n");
1183 exit(1);
1184 }
aba5acdf 1185
8d07e5f7 1186 ipaddr_filter(&linfo, &ainfo);
aba5acdf
SH		 1187 }
1188
8d07e5f7 1189 for (l = linfo.head; l; l = l->next) {
aba5acdf
SH		 1190 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
1191 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1192 if (filter.family != AF_PACKET)
8d07e5f7
SH		 1193 print_selected_addrinfo(ifi->ifi_index,
1194 ainfo.head, stdout);
aba5acdf 1195 }
aba5acdf 1196 }
8d07e5f7
SH		 1197 fflush(stdout);
1198
1199 free_nlmsg_chain(&ainfo);
1200 free_nlmsg_chain(&linfo);
aba5acdf 1201
351efcde 1202 return 0;
aba5acdf
SH		 1203}
1204
1205int ipaddr_list_link(int argc, char **argv)
1206{
1207 preferred_family = AF_PACKET;
1208 do_link = 1;
81824ac2 1209 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
aba5acdf
SH		 1210}
1211
1212void ipaddr_reset_filter(int oneline)
1213{
1214 memset(&filter, 0, sizeof(filter));
1215 filter.oneline = oneline;
1216}
1217
3d866ba2 1218static int default_scope(inet_prefix *lcl)
aba5acdf
SH		 1219{
1220 if (lcl->family == AF_INET) {
1221 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
1222 return RT_SCOPE_HOST;
1223 }
1224 return 0;
1225}
1226
3d866ba2 1227static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
aba5acdf 1228{
aba5acdf
SH		 1229 struct {
1230 struct nlmsghdr n;
1231 struct ifaddrmsg ifa;
1232 char buf[256];
1233 } req;
1234 char *d = NULL;
1235 char *l = NULL;
f082b64f 1236 char *lcl_arg = NULL;
35546df7
MN		 1237 char *valid_lftp = NULL;
1238 char *preferred_lftp = NULL;
aba5acdf
SH		 1239 inet_prefix lcl;
1240 inet_prefix peer;
1241 int local_len = 0;
1242 int peer_len = 0;
1243 int brd_len = 0;
1244 int any_len = 0;
1245 int scoped = 0;
141bb606
MN		 1246 __u32 preferred_lft = INFINITY_LIFE_TIME;
1247 __u32 valid_lft = INFINITY_LIFE_TIME;
35546df7 1248 struct ifa_cacheinfo cinfo;
aba5acdf
SH		 1249
1250 memset(&req, 0, sizeof(req));
1251
1252 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
0aef366b 1253 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
aba5acdf
SH		 1254 req.n.nlmsg_type = cmd;
1255 req.ifa.ifa_family = preferred_family;
1256
1257 while (argc > 0) {
1258 if (strcmp(*argv, "peer") == 0 ||
1259 strcmp(*argv, "remote") == 0) {
1260 NEXT_ARG();
1261
1262 if (peer_len)
1263 duparg("peer", *argv);
1264 get_prefix(&peer, *argv, req.ifa.ifa_family);
1265 peer_len = peer.bytelen;
1266 if (req.ifa.ifa_family == AF_UNSPEC)
1267 req.ifa.ifa_family = peer.family;
1268 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1269 req.ifa.ifa_prefixlen = peer.bitlen;
1270 } else if (matches(*argv, "broadcast") == 0 ||
1271 strcmp(*argv, "brd") == 0) {
1272 inet_prefix addr;
1273 NEXT_ARG();
1274 if (brd_len)
1275 duparg("broadcast", *argv);
1276 if (strcmp(*argv, "+") == 0)
1277 brd_len = -1;
1278 else if (strcmp(*argv, "-") == 0)
1279 brd_len = -2;
1280 else {
1281 get_addr(&addr, *argv, req.ifa.ifa_family);
1282 if (req.ifa.ifa_family == AF_UNSPEC)
1283 req.ifa.ifa_family = addr.family;
1284 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1285 brd_len = addr.bytelen;
1286 }
1287 } else if (strcmp(*argv, "anycast") == 0) {
1288 inet_prefix addr;
1289 NEXT_ARG();
1290 if (any_len)
1291 duparg("anycast", *argv);
1292 get_addr(&addr, *argv, req.ifa.ifa_family);
1293 if (req.ifa.ifa_family == AF_UNSPEC)
1294 req.ifa.ifa_family = addr.family;
1295 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1296 any_len = addr.bytelen;
1297 } else if (strcmp(*argv, "scope") == 0) {
f332d169 1298 unsigned scope = 0;
aba5acdf
SH		 1299 NEXT_ARG();
1300 if (rtnl_rtscope_a2n(&scope, *argv))
f1675d61 1301 invarg("invalid scope value.", *argv);
aba5acdf
SH		 1302 req.ifa.ifa_scope = scope;
1303 scoped = 1;
1304 } else if (strcmp(*argv, "dev") == 0) {
1305 NEXT_ARG();
1306 d = *argv;
1307 } else if (strcmp(*argv, "label") == 0) {
1308 NEXT_ARG();
1309 l = *argv;
1310 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
35546df7
MN		 1311 } else if (matches(*argv, "valid_lft") == 0) {
1312 if (valid_lftp)
1313 duparg("valid_lft", *argv);
1314 NEXT_ARG();
1315 valid_lftp = *argv;
1316 if (set_lifetime(&valid_lft, *argv))
1317 invarg("valid_lft value", *argv);
1318 } else if (matches(*argv, "preferred_lft") == 0) {
1319 if (preferred_lftp)
1320 duparg("preferred_lft", *argv);
1321 NEXT_ARG();
1322 preferred_lftp = *argv;
1323 if (set_lifetime(&preferred_lft, *argv))
1324 invarg("preferred_lft value", *argv);
bac735c5
NT		 1325 } else if (strcmp(*argv, "home") == 0) {
1326 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1327 } else if (strcmp(*argv, "nodad") == 0) {
1328 req.ifa.ifa_flags |= IFA_F_NODAD;
aba5acdf
SH		 1329 } else {
1330 if (strcmp(*argv, "local") == 0) {
1331 NEXT_ARG();
1332 }
1333 if (matches(*argv, "help") == 0)
1334 usage();
1335 if (local_len)
1336 duparg2("local", *argv);
f082b64f 1337 lcl_arg = *argv;
aba5acdf
SH		 1338 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1339 if (req.ifa.ifa_family == AF_UNSPEC)
1340 req.ifa.ifa_family = lcl.family;
1341 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1342 local_len = lcl.bytelen;
1343 }
1344 argc--; argv++;
1345 }
1346 if (d == NULL) {
1347 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1348 return -1;
1349 }
1350 if (l && matches(d, l) != 0) {
1351 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1db61e02 1352 return -1;
aba5acdf
SH		 1353 }
1354
f082b64f 1355 if (peer_len == 0 && local_len) {
1356 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1357 fprintf(stderr,
1358 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1359 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1360 " This special behaviour is likely to disappear in further releases,\n" \
1361 " fix your scripts!\n", lcl_arg, local_len*8);
1362 } else {
1363 peer = lcl;
1364 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1365 }
aba5acdf
SH		 1366 }
1367 if (req.ifa.ifa_prefixlen == 0)
1368 req.ifa.ifa_prefixlen = lcl.bitlen;
1369
1370 if (brd_len < 0 && cmd != RTM_DELADDR) {
1371 inet_prefix brd;
1372 int i;
1373 if (req.ifa.ifa_family != AF_INET) {
1374 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1375 return -1;
1376 }
1377 brd = peer;
1378 if (brd.bitlen <= 30) {
1379 for (i=31; i>=brd.bitlen; i--) {
1380 if (brd_len == -1)
1381 brd.data[0] |= htonl(1<<(31-i));
1382 else
1383 brd.data[0] &= ~htonl(1<<(31-i));
1384 }
1385 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1386 brd_len = brd.bytelen;
1387 }
1388 }
1389 if (!scoped && cmd != RTM_DELADDR)
1390 req.ifa.ifa_scope = default_scope(&lcl);
1391
aba5acdf
SH		 1392 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1393 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1394 return -1;
1395 }
1396
35546df7
MN		 1397 if (valid_lftp || preferred_lftp) {
1398 if (!valid_lft) {
1399 fprintf(stderr, "valid_lft is zero\n");
1400 return -1;
1401 }
1402 if (valid_lft < preferred_lft) {
1403 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1404 return -1;
1405 }
1406
1407 memset(&cinfo, 0, sizeof(cinfo));
1408 cinfo.ifa_prefered = preferred_lft;
1409 cinfo.ifa_valid = valid_lft;
1410 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1411 sizeof(cinfo));
1412 }
1413
cd70f3f5 1414 if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
1db61e02 1415 return -2;
aba5acdf 1416
351efcde 1417 return 0;
aba5acdf
SH		 1418}
1419
1420int do_ipaddr(int argc, char **argv)
1421{
1422 if (argc < 1)
81824ac2 1423 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
aba5acdf 1424 if (matches(*argv, "add") == 0)
0aef366b
NT		 1425 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1426 if (matches(*argv, "change") == 0 ||
1427 strcmp(*argv, "chg") == 0)
1428 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1429 if (matches(*argv, "replace") == 0)
1430 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
aba5acdf 1431 if (matches(*argv, "delete") == 0)
0aef366b 1432 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
aba5acdf
SH		 1433 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1434 || matches(*argv, "lst") == 0)
81824ac2 1435 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
aba5acdf 1436 if (matches(*argv, "flush") == 0)
81824ac2
PE		 1437 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
1438 if (matches(*argv, "save") == 0)
1439 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
1440 if (matches(*argv, "showdump") == 0)
1441 return ipaddr_showdump();
1442 if (matches(*argv, "restore") == 0)
1443 return ipaddr_restore();
aba5acdf
SH		 1444 if (matches(*argv, "help") == 0)
1445 usage();
b096fa5f 1446 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);
aba5acdf
SH		 1447 exit(-1);
1448}
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