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ip: change format of promiscuity display
[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 <syslog.h>
17 #include <inttypes.h>
18 #include <fcntl.h>
19 #include <sys/ioctl.h>
20 #include <sys/socket.h>
21 #include <sys/ioctl.h>
22 #include <errno.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
25 #include <string.h>
26 #include <fnmatch.h>
27
28 #include <linux/netdevice.h>
29 #include <linux/if_arp.h>
30 #include <linux/sockios.h>
31
32 #include "rt_names.h"
33 #include "utils.h"
34 #include "ll_map.h"
35 #include "ip_common.h"
36
37 enum {
38 IPADD_LIST,
39 IPADD_FLUSH,
40 IPADD_SAVE,
41 };
42
43 static 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;
58 int group;
59 } filter;
60
61 static int do_link;
62
63 static void usage(void) __attribute__((noreturn));
64
65 static void usage(void)
66 {
67 if (do_link) {
68 iplink_usage();
69 }
70 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
71 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
72 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
73 fprintf(stderr, " ip addr {show|save|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
74 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\n");
75 fprintf(stderr, " ip addr {showdump|restore}\n");
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");
82 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
83 fprintf(stderr, " CONFFLAG-LIST ]\n");
84 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
85 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
86 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
87 fprintf(stderr, "LFT := forever | SECONDS\n");
88
89 exit(-1);
90 }
91
92 void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
93 {
94 fprintf(fp, "<");
95 if (flags & IFF_UP && !(flags & IFF_RUNNING))
96 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
97 flags &= ~IFF_RUNNING;
98 #define _PF(f) if (flags&IFF_##f) { \
99 flags &= ~IFF_##f ; \
100 fprintf(fp, #f "%s", flags ? "," : ""); }
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);
116 _PF(LOWER_UP);
117 _PF(DORMANT);
118 _PF(ECHO);
119 #undef _PF
120 if (flags)
121 fprintf(fp, "%x", flags);
122 if (mdown)
123 fprintf(fp, ",M-DOWN");
124 fprintf(fp, "> ");
125 }
126
127 static const char *oper_states[] = {
128 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
129 "TESTING", "DORMANT", "UP"
130 };
131
132 static 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
140 int 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
150 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
151 {
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));
164 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
165 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
166 fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
167 close(s);
168 return;
169 }
170 close(s);
171 qlen = ifr.ifr_qlen;
172 }
173 if (qlen)
174 fprintf(f, "qlen %d", qlen);
175 }
176
177 static const char *link_modes[] = {
178 "DEFAULT", "DORMANT"
179 };
180
181 static 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
191 static 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
226 static 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;
231 struct ifla_vf_spoofchk *vf_spoofchk;
232 struct rtattr *vf[IFLA_VF_MAX+1];
233 struct rtattr *tmp;
234 SPRINT_BUF(b1);
235
236 if (vfinfo->rta_type != IFLA_VF_INFO) {
237 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
238 return;
239 }
240
241 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
242
243 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
244 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
245 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
246
247 /* Check if the spoof checking vf info type is supported by
248 * this kernel.
249 */
250 tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
251 vf[IFLA_VF_TX_RATE]->rta_len);
252
253 if (tmp->rta_type != IFLA_VF_SPOOFCHK)
254 vf_spoofchk = NULL;
255 else
256 vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
257
258 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
259 ll_addr_n2a((unsigned char *)&vf_mac->mac,
260 ETH_ALEN, 0, b1, sizeof(b1)));
261 if (vf_vlan->vlan)
262 fprintf(fp, ", vlan %d", vf_vlan->vlan);
263 if (vf_vlan->qos)
264 fprintf(fp, ", qos %d", vf_vlan->qos);
265 if (vf_tx_rate->rate)
266 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
267 if (vf_spoofchk && vf_spoofchk->setting != -1) {
268 if (vf_spoofchk->setting)
269 fprintf(fp, ", spoof checking on");
270 else
271 fprintf(fp, ", spoof checking off");
272 }
273 }
274
275 static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s) {
276 fprintf(fp, "%s", _SL_);
277 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
278 s->rx_compressed ? "compressed" : "", _SL_);
279 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
280 (uint64_t)s->rx_bytes,
281 (uint64_t)s->rx_packets,
282 (uint64_t)s->rx_errors,
283 (uint64_t)s->rx_dropped,
284 (uint64_t)s->rx_over_errors,
285 (uint64_t)s->multicast);
286 if (s->rx_compressed)
287 fprintf(fp, " %-7"PRIu64"",
288 (uint64_t)s->rx_compressed);
289 if (show_stats > 1) {
290 fprintf(fp, "%s", _SL_);
291 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
292 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
293 (uint64_t)s->rx_length_errors,
294 (uint64_t)s->rx_crc_errors,
295 (uint64_t)s->rx_frame_errors,
296 (uint64_t)s->rx_fifo_errors,
297 (uint64_t)s->rx_missed_errors);
298 }
299 fprintf(fp, "%s", _SL_);
300 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
301 (uint64_t)s->tx_compressed ? "compressed" : "", _SL_);
302 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
303 (uint64_t)s->tx_bytes,
304 (uint64_t)s->tx_packets,
305 (uint64_t)s->tx_errors,
306 (uint64_t)s->tx_dropped,
307 (uint64_t)s->tx_carrier_errors,
308 (uint64_t)s->collisions);
309 if (s->tx_compressed)
310 fprintf(fp, " %-7"PRIu64"",
311 (uint64_t)s->tx_compressed);
312 if (show_stats > 1) {
313 fprintf(fp, "%s", _SL_);
314 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
315 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
316 (uint64_t)s->tx_aborted_errors,
317 (uint64_t)s->tx_fifo_errors,
318 (uint64_t)s->tx_window_errors,
319 (uint64_t)s->tx_heartbeat_errors);
320 }
321 }
322
323 static void print_link_stats(FILE *fp, const struct rtnl_link_stats *s)
324 {
325 fprintf(fp, "%s", _SL_);
326 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
327 s->rx_compressed ? "compressed" : "", _SL_);
328 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
329 s->rx_bytes, s->rx_packets, s->rx_errors,
330 s->rx_dropped, s->rx_over_errors,
331 s->multicast
332 );
333 if (s->rx_compressed)
334 fprintf(fp, " %-7u", s->rx_compressed);
335 if (show_stats > 1) {
336 fprintf(fp, "%s", _SL_);
337 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
338 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
339 s->rx_length_errors,
340 s->rx_crc_errors,
341 s->rx_frame_errors,
342 s->rx_fifo_errors,
343 s->rx_missed_errors
344 );
345 }
346 fprintf(fp, "%s", _SL_);
347 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
348 s->tx_compressed ? "compressed" : "", _SL_);
349 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
350 s->tx_bytes, s->tx_packets, s->tx_errors,
351 s->tx_dropped, s->tx_carrier_errors, s->collisions);
352 if (s->tx_compressed)
353 fprintf(fp, " %-7u", s->tx_compressed);
354 if (show_stats > 1) {
355 fprintf(fp, "%s", _SL_);
356 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
357 fprintf(fp, " %-7u %-7u %-7u %-7u",
358 s->tx_aborted_errors,
359 s->tx_fifo_errors,
360 s->tx_window_errors,
361 s->tx_heartbeat_errors
362 );
363 }
364 }
365
366 int print_linkinfo(const struct sockaddr_nl *who,
367 struct nlmsghdr *n, void *arg)
368 {
369 FILE *fp = (FILE*)arg;
370 struct ifinfomsg *ifi = NLMSG_DATA(n);
371 struct rtattr * tb[IFLA_MAX+1];
372 int len = n->nlmsg_len;
373 unsigned m_flag = 0;
374
375 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
376 return 0;
377
378 len -= NLMSG_LENGTH(sizeof(*ifi));
379 if (len < 0)
380 return -1;
381
382 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
383 return 0;
384 if (filter.up && !(ifi->ifi_flags&IFF_UP))
385 return 0;
386
387 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
388 if (tb[IFLA_IFNAME] == NULL) {
389 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
390 }
391 if (filter.label &&
392 (!filter.family || filter.family == AF_PACKET) &&
393 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
394 return 0;
395
396 if (tb[IFLA_GROUP]) {
397 int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
398 if (group != filter.group)
399 return -1;
400 }
401
402 if (n->nlmsg_type == RTM_DELLINK)
403 fprintf(fp, "Deleted ");
404
405 fprintf(fp, "%d: %s", ifi->ifi_index,
406 tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
407
408 if (tb[IFLA_LINK]) {
409 SPRINT_BUF(b1);
410 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
411 if (iflink == 0)
412 fprintf(fp, "@NONE: ");
413 else {
414 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
415 m_flag = ll_index_to_flags(iflink);
416 m_flag = !(m_flag & IFF_UP);
417 }
418 } else {
419 fprintf(fp, ": ");
420 }
421 print_link_flags(fp, ifi->ifi_flags, m_flag);
422
423 if (tb[IFLA_MTU])
424 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
425 if (tb[IFLA_QDISC])
426 fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
427 if (tb[IFLA_MASTER]) {
428 SPRINT_BUF(b1);
429 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
430 }
431
432 if (tb[IFLA_OPERSTATE])
433 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
434
435 if (do_link && tb[IFLA_LINKMODE])
436 print_linkmode(fp, tb[IFLA_LINKMODE]);
437
438 if (filter.showqueue)
439 print_queuelen(fp, tb);
440
441 if (!filter.family || filter.family == AF_PACKET) {
442 SPRINT_BUF(b1);
443 fprintf(fp, "%s", _SL_);
444 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
445
446 if (tb[IFLA_ADDRESS]) {
447 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
448 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
449 ifi->ifi_type,
450 b1, sizeof(b1)));
451 }
452 if (tb[IFLA_BROADCAST]) {
453 if (ifi->ifi_flags&IFF_POINTOPOINT)
454 fprintf(fp, " peer ");
455 else
456 fprintf(fp, " brd ");
457 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
458 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
459 ifi->ifi_type,
460 b1, sizeof(b1)));
461 }
462 }
463
464 if (do_link && tb[IFLA_PROMISCUITY] && show_details)
465 fprintf(fp, " promiscuity %u ",
466 *(int*)RTA_DATA(tb[IFLA_PROMISCUITY]));
467
468 if (do_link && tb[IFLA_LINKINFO] && show_details)
469 print_linktype(fp, tb[IFLA_LINKINFO]);
470
471 if (do_link && tb[IFLA_IFALIAS])
472 fprintf(fp,"\n alias %s",
473 rta_getattr_str(tb[IFLA_IFALIAS]));
474
475 if (do_link && show_stats) {
476 if (tb[IFLA_STATS64])
477 print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
478 else if (tb[IFLA_STATS])
479 print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
480 }
481
482 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
483 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
484 int rem = RTA_PAYLOAD(vflist);
485 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
486 print_vfinfo(fp, i);
487 }
488
489 fprintf(fp, "\n");
490 fflush(fp);
491 return 0;
492 }
493
494 static int flush_update(void)
495 {
496 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
497 perror("Failed to send flush request");
498 return -1;
499 }
500 filter.flushp = 0;
501 return 0;
502 }
503
504 static int set_lifetime(unsigned int *lifetime, char *argv)
505 {
506 if (strcmp(argv, "forever") == 0)
507 *lifetime = INFINITY_LIFE_TIME;
508 else if (get_u32(lifetime, argv, 0))
509 return -1;
510
511 return 0;
512 }
513
514 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
515 void *arg)
516 {
517 FILE *fp = (FILE*)arg;
518 struct ifaddrmsg *ifa = NLMSG_DATA(n);
519 int len = n->nlmsg_len;
520 int deprecated = 0;
521 /* Use local copy of ifa_flags to not interfere with filtering code */
522 unsigned int ifa_flags;
523 struct rtattr * rta_tb[IFA_MAX+1];
524 char abuf[256];
525 SPRINT_BUF(b1);
526
527 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
528 return 0;
529 len -= NLMSG_LENGTH(sizeof(*ifa));
530 if (len < 0) {
531 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
532 return -1;
533 }
534
535 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
536 return 0;
537
538 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
539
540 if (!rta_tb[IFA_LOCAL])
541 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
542 if (!rta_tb[IFA_ADDRESS])
543 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
544
545 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
546 return 0;
547 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
548 return 0;
549 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
550 return 0;
551 if (filter.label) {
552 SPRINT_BUF(b1);
553 const char *label;
554 if (rta_tb[IFA_LABEL])
555 label = RTA_DATA(rta_tb[IFA_LABEL]);
556 else
557 label = ll_idx_n2a(ifa->ifa_index, b1);
558 if (fnmatch(filter.label, label, 0) != 0)
559 return 0;
560 }
561 if (filter.pfx.family) {
562 if (rta_tb[IFA_LOCAL]) {
563 inet_prefix dst;
564 memset(&dst, 0, sizeof(dst));
565 dst.family = ifa->ifa_family;
566 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
567 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
568 return 0;
569 }
570 }
571
572 if (filter.family && filter.family != ifa->ifa_family)
573 return 0;
574
575 if (filter.flushb) {
576 struct nlmsghdr *fn;
577 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
578 if (flush_update())
579 return -1;
580 }
581 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
582 memcpy(fn, n, n->nlmsg_len);
583 fn->nlmsg_type = RTM_DELADDR;
584 fn->nlmsg_flags = NLM_F_REQUEST;
585 fn->nlmsg_seq = ++rth.seq;
586 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
587 filter.flushed++;
588 if (show_stats < 2)
589 return 0;
590 }
591
592 if (n->nlmsg_type == RTM_DELADDR)
593 fprintf(fp, "Deleted ");
594
595 if (filter.oneline || filter.flushb)
596 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
597 if (ifa->ifa_family == AF_INET)
598 fprintf(fp, " inet ");
599 else if (ifa->ifa_family == AF_INET6)
600 fprintf(fp, " inet6 ");
601 else if (ifa->ifa_family == AF_DECnet)
602 fprintf(fp, " dnet ");
603 else if (ifa->ifa_family == AF_IPX)
604 fprintf(fp, " ipx ");
605 else
606 fprintf(fp, " family %d ", ifa->ifa_family);
607
608 if (rta_tb[IFA_LOCAL]) {
609 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
610 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
611 RTA_DATA(rta_tb[IFA_LOCAL]),
612 abuf, sizeof(abuf)));
613
614 if (rta_tb[IFA_ADDRESS] == NULL ||
615 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]), 4) == 0) {
616 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
617 } else {
618 fprintf(fp, " peer %s/%d ",
619 rt_addr_n2a(ifa->ifa_family,
620 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
621 RTA_DATA(rta_tb[IFA_ADDRESS]),
622 abuf, sizeof(abuf)),
623 ifa->ifa_prefixlen);
624 }
625 }
626
627 if (rta_tb[IFA_BROADCAST]) {
628 fprintf(fp, "brd %s ",
629 rt_addr_n2a(ifa->ifa_family,
630 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
631 RTA_DATA(rta_tb[IFA_BROADCAST]),
632 abuf, sizeof(abuf)));
633 }
634 if (rta_tb[IFA_ANYCAST]) {
635 fprintf(fp, "any %s ",
636 rt_addr_n2a(ifa->ifa_family,
637 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
638 RTA_DATA(rta_tb[IFA_ANYCAST]),
639 abuf, sizeof(abuf)));
640 }
641 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
642 ifa_flags = ifa->ifa_flags;
643 if (ifa->ifa_flags&IFA_F_SECONDARY) {
644 ifa_flags &= ~IFA_F_SECONDARY;
645 if (ifa->ifa_family == AF_INET6)
646 fprintf(fp, "temporary ");
647 else
648 fprintf(fp, "secondary ");
649 }
650 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
651 ifa_flags &= ~IFA_F_TENTATIVE;
652 fprintf(fp, "tentative ");
653 }
654 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
655 ifa_flags &= ~IFA_F_DEPRECATED;
656 deprecated = 1;
657 fprintf(fp, "deprecated ");
658 }
659 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
660 ifa_flags &= ~IFA_F_HOMEADDRESS;
661 fprintf(fp, "home ");
662 }
663 if (ifa->ifa_flags&IFA_F_NODAD) {
664 ifa_flags &= ~IFA_F_NODAD;
665 fprintf(fp, "nodad ");
666 }
667 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
668 fprintf(fp, "dynamic ");
669 } else
670 ifa_flags &= ~IFA_F_PERMANENT;
671 if (ifa->ifa_flags&IFA_F_DADFAILED) {
672 ifa_flags &= ~IFA_F_DADFAILED;
673 fprintf(fp, "dadfailed ");
674 }
675 if (ifa_flags)
676 fprintf(fp, "flags %02x ", ifa_flags);
677 if (rta_tb[IFA_LABEL])
678 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
679 if (rta_tb[IFA_CACHEINFO]) {
680 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
681 fprintf(fp, "%s", _SL_);
682 fprintf(fp, " valid_lft ");
683 if (ci->ifa_valid == INFINITY_LIFE_TIME)
684 fprintf(fp, "forever");
685 else
686 fprintf(fp, "%usec", ci->ifa_valid);
687 fprintf(fp, " preferred_lft ");
688 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
689 fprintf(fp, "forever");
690 else {
691 if (deprecated)
692 fprintf(fp, "%dsec", ci->ifa_prefered);
693 else
694 fprintf(fp, "%usec", ci->ifa_prefered);
695 }
696 }
697 fprintf(fp, "\n");
698 fflush(fp);
699 return 0;
700 }
701
702 int print_addrinfo_primary(const struct sockaddr_nl *who, struct nlmsghdr *n,
703 void *arg)
704 {
705 struct ifaddrmsg *ifa = NLMSG_DATA(n);
706
707 if (ifa->ifa_flags & IFA_F_SECONDARY)
708 return 0;
709
710 return print_addrinfo(who, n, arg);
711 }
712
713 int print_addrinfo_secondary(const struct sockaddr_nl *who, struct nlmsghdr *n,
714 void *arg)
715 {
716 struct ifaddrmsg *ifa = NLMSG_DATA(n);
717
718 if (!(ifa->ifa_flags & IFA_F_SECONDARY))
719 return 0;
720
721 return print_addrinfo(who, n, arg);
722 }
723
724 struct nlmsg_list
725 {
726 struct nlmsg_list *next;
727 struct nlmsghdr h;
728 };
729
730 struct nlmsg_chain
731 {
732 struct nlmsg_list *head;
733 struct nlmsg_list *tail;
734 };
735
736 static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
737 {
738 for ( ;ainfo ; ainfo = ainfo->next) {
739 struct nlmsghdr *n = &ainfo->h;
740 struct ifaddrmsg *ifa = NLMSG_DATA(n);
741
742 if (n->nlmsg_type != RTM_NEWADDR)
743 continue;
744
745 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
746 return -1;
747
748 if (ifa->ifa_index != ifindex ||
749 (filter.family && filter.family != ifa->ifa_family))
750 continue;
751
752 print_addrinfo(NULL, n, fp);
753 }
754 return 0;
755 }
756
757
758 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
759 void *arg)
760 {
761 struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
762 struct nlmsg_list *h;
763
764 h = malloc(n->nlmsg_len+sizeof(void*));
765 if (h == NULL)
766 return -1;
767
768 memcpy(&h->h, n, n->nlmsg_len);
769 h->next = NULL;
770
771 if (lchain->tail)
772 lchain->tail->next = h;
773 else
774 lchain->head = h;
775 lchain->tail = h;
776
777 ll_remember_index(who, n, NULL);
778 return 0;
779 }
780
781 static __u32 ipadd_dump_magic = 0x47361222;
782
783 static int ipadd_save_prep(void)
784 {
785 int ret;
786
787 if (isatty(STDOUT_FILENO)) {
788 fprintf(stderr, "Not sending binary stream to stdout\n");
789 return -1;
790 }
791
792 ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
793 if (ret != sizeof(ipadd_dump_magic)) {
794 fprintf(stderr, "Can't write magic to dump file\n");
795 return -1;
796 }
797
798 return 0;
799 }
800
801 static int ipadd_dump_check_magic(void)
802 {
803 int ret;
804 __u32 magic = 0;
805
806 if (isatty(STDIN_FILENO)) {
807 fprintf(stderr, "Can't restore addr dump from a terminal\n");
808 return -1;
809 }
810
811 ret = fread(&magic, sizeof(magic), 1, stdin);
812 if (magic != ipadd_dump_magic) {
813 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
814 return -1;
815 }
816
817 return 0;
818 }
819
820 static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
821 void *arg)
822 {
823 int ret;
824
825 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
826 if ((ret > 0) && (ret != n->nlmsg_len)) {
827 fprintf(stderr, "Short write while saving nlmsg\n");
828 ret = -EIO;
829 }
830
831 return ret == n->nlmsg_len ? 0 : ret;
832 }
833
834 static int show_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
835 {
836 struct ifaddrmsg *ifa = NLMSG_DATA(n);
837
838 printf("if%d:\n", ifa->ifa_index);
839 print_addrinfo(NULL, n, stdout);
840 return 0;
841 }
842
843 static int ipaddr_showdump(void)
844 {
845 if (ipadd_dump_check_magic())
846 exit(-1);
847
848 exit(rtnl_from_file(stdin, &show_handler, NULL));
849 }
850
851 static int restore_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
852 {
853 int ret;
854
855 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
856
857 ll_init_map(&rth);
858
859 ret = rtnl_talk(&rth, n, 0, 0, n);
860 if ((ret < 0) && (errno == EEXIST))
861 ret = 0;
862
863 return ret;
864 }
865
866 static int ipaddr_restore(void)
867 {
868 if (ipadd_dump_check_magic())
869 exit(-1);
870
871 exit(rtnl_from_file(stdin, &restore_handler, NULL));
872 }
873
874 static void free_nlmsg_chain(struct nlmsg_chain *info)
875 {
876 struct nlmsg_list *l, *n;
877
878 for (l = info->head; l; l = n) {
879 n = l->next;
880 free(l);
881 }
882 }
883
884 static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
885 {
886 struct nlmsg_list *l, **lp;
887
888 lp = &linfo->head;
889 while ( (l = *lp) != NULL) {
890 int ok = 0;
891 int missing_net_address = 1;
892 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
893 struct nlmsg_list *a;
894
895 for (a = ainfo->head; a; a = a->next) {
896 struct nlmsghdr *n = &a->h;
897 struct ifaddrmsg *ifa = NLMSG_DATA(n);
898
899 if (ifa->ifa_index != ifi->ifi_index)
900 continue;
901 missing_net_address = 0;
902 if (filter.family && filter.family != ifa->ifa_family)
903 continue;
904 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
905 continue;
906 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
907 continue;
908 if (filter.pfx.family || filter.label) {
909 struct rtattr *tb[IFA_MAX+1];
910 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
911 if (!tb[IFA_LOCAL])
912 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
913
914 if (filter.pfx.family && tb[IFA_LOCAL]) {
915 inet_prefix dst;
916 memset(&dst, 0, sizeof(dst));
917 dst.family = ifa->ifa_family;
918 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
919 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
920 continue;
921 }
922 if (filter.label) {
923 SPRINT_BUF(b1);
924 const char *label;
925 if (tb[IFA_LABEL])
926 label = RTA_DATA(tb[IFA_LABEL]);
927 else
928 label = ll_idx_n2a(ifa->ifa_index, b1);
929 if (fnmatch(filter.label, label, 0) != 0)
930 continue;
931 }
932 }
933
934 ok = 1;
935 break;
936 }
937 if (missing_net_address &&
938 (filter.family == AF_UNSPEC || filter.family == AF_PACKET))
939 ok = 1;
940 if (!ok) {
941 *lp = l->next;
942 free(l);
943 } else
944 lp = &l->next;
945 }
946 }
947
948 static int ipaddr_flush(void)
949 {
950 int round = 0;
951 char flushb[4096-512];
952
953 filter.flushb = flushb;
954 filter.flushp = 0;
955 filter.flushe = sizeof(flushb);
956
957 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
958 const struct rtnl_dump_filter_arg a[3] = {
959 {
960 .filter = print_addrinfo_secondary,
961 .arg1 = stdout,
962 },
963 {
964 .filter = print_addrinfo_primary,
965 .arg1 = stdout,
966 },
967 {
968 .filter = NULL,
969 .arg1 = NULL,
970 },
971 };
972 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
973 perror("Cannot send dump request");
974 exit(1);
975 }
976 filter.flushed = 0;
977 if (rtnl_dump_filter_l(&rth, a) < 0) {
978 fprintf(stderr, "Flush terminated\n");
979 exit(1);
980 }
981 if (filter.flushed == 0) {
982 flush_done:
983 if (show_stats) {
984 if (round == 0)
985 printf("Nothing to flush.\n");
986 else
987 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
988 }
989 fflush(stdout);
990 return 0;
991 }
992 round++;
993 if (flush_update() < 0)
994 return 1;
995
996 if (show_stats) {
997 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
998 fflush(stdout);
999 }
1000
1001 /* If we are flushing, and specifying primary, then we
1002 * want to flush only a single round. Otherwise, we'll
1003 * start flushing secondaries that were promoted to
1004 * primaries.
1005 */
1006 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
1007 goto flush_done;
1008 }
1009 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
1010 fflush(stderr);
1011 return 1;
1012 }
1013
1014 static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
1015 {
1016 struct nlmsg_chain linfo = { NULL, NULL};
1017 struct nlmsg_chain ainfo = { NULL, NULL};
1018 struct nlmsg_list *l;
1019 char *filter_dev = NULL;
1020 int no_link = 0;
1021
1022 ipaddr_reset_filter(oneline);
1023 filter.showqueue = 1;
1024
1025 if (filter.family == AF_UNSPEC)
1026 filter.family = preferred_family;
1027
1028 filter.group = INIT_NETDEV_GROUP;
1029
1030 if (action == IPADD_FLUSH) {
1031 if (argc <= 0) {
1032 fprintf(stderr, "Flush requires arguments.\n");
1033
1034 return -1;
1035 }
1036 if (filter.family == AF_PACKET) {
1037 fprintf(stderr, "Cannot flush link addresses.\n");
1038 return -1;
1039 }
1040 }
1041
1042 while (argc > 0) {
1043 if (strcmp(*argv, "to") == 0) {
1044 NEXT_ARG();
1045 get_prefix(&filter.pfx, *argv, filter.family);
1046 if (filter.family == AF_UNSPEC)
1047 filter.family = filter.pfx.family;
1048 } else if (strcmp(*argv, "scope") == 0) {
1049 unsigned scope = 0;
1050 NEXT_ARG();
1051 filter.scopemask = -1;
1052 if (rtnl_rtscope_a2n(&scope, *argv)) {
1053 if (strcmp(*argv, "all") != 0)
1054 invarg("invalid \"scope\"\n", *argv);
1055 scope = RT_SCOPE_NOWHERE;
1056 filter.scopemask = 0;
1057 }
1058 filter.scope = scope;
1059 } else if (strcmp(*argv, "up") == 0) {
1060 filter.up = 1;
1061 } else if (strcmp(*argv, "dynamic") == 0) {
1062 filter.flags &= ~IFA_F_PERMANENT;
1063 filter.flagmask |= IFA_F_PERMANENT;
1064 } else if (strcmp(*argv, "permanent") == 0) {
1065 filter.flags |= IFA_F_PERMANENT;
1066 filter.flagmask |= IFA_F_PERMANENT;
1067 } else if (strcmp(*argv, "secondary") == 0 ||
1068 strcmp(*argv, "temporary") == 0) {
1069 filter.flags |= IFA_F_SECONDARY;
1070 filter.flagmask |= IFA_F_SECONDARY;
1071 } else if (strcmp(*argv, "primary") == 0) {
1072 filter.flags &= ~IFA_F_SECONDARY;
1073 filter.flagmask |= IFA_F_SECONDARY;
1074 } else if (strcmp(*argv, "tentative") == 0) {
1075 filter.flags |= IFA_F_TENTATIVE;
1076 filter.flagmask |= IFA_F_TENTATIVE;
1077 } else if (strcmp(*argv, "deprecated") == 0) {
1078 filter.flags |= IFA_F_DEPRECATED;
1079 filter.flagmask |= IFA_F_DEPRECATED;
1080 } else if (strcmp(*argv, "home") == 0) {
1081 filter.flags |= IFA_F_HOMEADDRESS;
1082 filter.flagmask |= IFA_F_HOMEADDRESS;
1083 } else if (strcmp(*argv, "nodad") == 0) {
1084 filter.flags |= IFA_F_NODAD;
1085 filter.flagmask |= IFA_F_NODAD;
1086 } else if (strcmp(*argv, "dadfailed") == 0) {
1087 filter.flags |= IFA_F_DADFAILED;
1088 filter.flagmask |= IFA_F_DADFAILED;
1089 } else if (strcmp(*argv, "label") == 0) {
1090 NEXT_ARG();
1091 filter.label = *argv;
1092 } else if (strcmp(*argv, "group") == 0) {
1093 NEXT_ARG();
1094 if (rtnl_group_a2n(&filter.group, *argv))
1095 invarg("Invalid \"group\" value\n", *argv);
1096 } else {
1097 if (strcmp(*argv, "dev") == 0) {
1098 NEXT_ARG();
1099 }
1100 if (matches(*argv, "help") == 0)
1101 usage();
1102 if (filter_dev)
1103 duparg2("dev", *argv);
1104 filter_dev = *argv;
1105 }
1106 argv++; argc--;
1107 }
1108
1109 if (filter_dev) {
1110 filter.ifindex = ll_name_to_index(filter_dev);
1111 if (filter.ifindex <= 0) {
1112 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
1113 return -1;
1114 }
1115 }
1116
1117 if (action == IPADD_FLUSH)
1118 return ipaddr_flush();
1119
1120 if (action == IPADD_SAVE) {
1121 if (ipadd_save_prep())
1122 exit(1);
1123
1124 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
1125 perror("Cannot send dump request");
1126 exit(1);
1127 }
1128
1129 if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
1130 fprintf(stderr, "Save terminated\n");
1131 exit(1);
1132 }
1133
1134 exit(0);
1135 }
1136
1137 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
1138 perror("Cannot send dump request");
1139 exit(1);
1140 }
1141
1142 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
1143 fprintf(stderr, "Dump terminated\n");
1144 exit(1);
1145 }
1146
1147 if (filter.family != AF_PACKET) {
1148 if (filter.oneline)
1149 no_link = 1;
1150
1151 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
1152 perror("Cannot send dump request");
1153 exit(1);
1154 }
1155
1156 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
1157 fprintf(stderr, "Dump terminated\n");
1158 exit(1);
1159 }
1160
1161 ipaddr_filter(&linfo, &ainfo);
1162 }
1163
1164 for (l = linfo.head; l; l = l->next) {
1165 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
1166 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1167 if (filter.family != AF_PACKET)
1168 print_selected_addrinfo(ifi->ifi_index,
1169 ainfo.head, stdout);
1170 }
1171 }
1172 fflush(stdout);
1173
1174 free_nlmsg_chain(&ainfo);
1175 free_nlmsg_chain(&linfo);
1176
1177 return 0;
1178 }
1179
1180 int ipaddr_list_link(int argc, char **argv)
1181 {
1182 preferred_family = AF_PACKET;
1183 do_link = 1;
1184 return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
1185 }
1186
1187 void ipaddr_reset_filter(int oneline)
1188 {
1189 memset(&filter, 0, sizeof(filter));
1190 filter.oneline = oneline;
1191 }
1192
1193 static int default_scope(inet_prefix *lcl)
1194 {
1195 if (lcl->family == AF_INET) {
1196 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
1197 return RT_SCOPE_HOST;
1198 }
1199 return 0;
1200 }
1201
1202 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
1203 {
1204 struct {
1205 struct nlmsghdr n;
1206 struct ifaddrmsg ifa;
1207 char buf[256];
1208 } req;
1209 char *d = NULL;
1210 char *l = NULL;
1211 char *lcl_arg = NULL;
1212 char *valid_lftp = NULL;
1213 char *preferred_lftp = NULL;
1214 inet_prefix lcl;
1215 inet_prefix peer;
1216 int local_len = 0;
1217 int peer_len = 0;
1218 int brd_len = 0;
1219 int any_len = 0;
1220 int scoped = 0;
1221 __u32 preferred_lft = INFINITY_LIFE_TIME;
1222 __u32 valid_lft = INFINITY_LIFE_TIME;
1223 struct ifa_cacheinfo cinfo;
1224
1225 memset(&req, 0, sizeof(req));
1226
1227 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
1228 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
1229 req.n.nlmsg_type = cmd;
1230 req.ifa.ifa_family = preferred_family;
1231
1232 while (argc > 0) {
1233 if (strcmp(*argv, "peer") == 0 ||
1234 strcmp(*argv, "remote") == 0) {
1235 NEXT_ARG();
1236
1237 if (peer_len)
1238 duparg("peer", *argv);
1239 get_prefix(&peer, *argv, req.ifa.ifa_family);
1240 peer_len = peer.bytelen;
1241 if (req.ifa.ifa_family == AF_UNSPEC)
1242 req.ifa.ifa_family = peer.family;
1243 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1244 req.ifa.ifa_prefixlen = peer.bitlen;
1245 } else if (matches(*argv, "broadcast") == 0 ||
1246 strcmp(*argv, "brd") == 0) {
1247 inet_prefix addr;
1248 NEXT_ARG();
1249 if (brd_len)
1250 duparg("broadcast", *argv);
1251 if (strcmp(*argv, "+") == 0)
1252 brd_len = -1;
1253 else if (strcmp(*argv, "-") == 0)
1254 brd_len = -2;
1255 else {
1256 get_addr(&addr, *argv, req.ifa.ifa_family);
1257 if (req.ifa.ifa_family == AF_UNSPEC)
1258 req.ifa.ifa_family = addr.family;
1259 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1260 brd_len = addr.bytelen;
1261 }
1262 } else if (strcmp(*argv, "anycast") == 0) {
1263 inet_prefix addr;
1264 NEXT_ARG();
1265 if (any_len)
1266 duparg("anycast", *argv);
1267 get_addr(&addr, *argv, req.ifa.ifa_family);
1268 if (req.ifa.ifa_family == AF_UNSPEC)
1269 req.ifa.ifa_family = addr.family;
1270 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1271 any_len = addr.bytelen;
1272 } else if (strcmp(*argv, "scope") == 0) {
1273 unsigned scope = 0;
1274 NEXT_ARG();
1275 if (rtnl_rtscope_a2n(&scope, *argv))
1276 invarg("invalid scope value.", *argv);
1277 req.ifa.ifa_scope = scope;
1278 scoped = 1;
1279 } else if (strcmp(*argv, "dev") == 0) {
1280 NEXT_ARG();
1281 d = *argv;
1282 } else if (strcmp(*argv, "label") == 0) {
1283 NEXT_ARG();
1284 l = *argv;
1285 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1286 } else if (matches(*argv, "valid_lft") == 0) {
1287 if (valid_lftp)
1288 duparg("valid_lft", *argv);
1289 NEXT_ARG();
1290 valid_lftp = *argv;
1291 if (set_lifetime(&valid_lft, *argv))
1292 invarg("valid_lft value", *argv);
1293 } else if (matches(*argv, "preferred_lft") == 0) {
1294 if (preferred_lftp)
1295 duparg("preferred_lft", *argv);
1296 NEXT_ARG();
1297 preferred_lftp = *argv;
1298 if (set_lifetime(&preferred_lft, *argv))
1299 invarg("preferred_lft value", *argv);
1300 } else if (strcmp(*argv, "home") == 0) {
1301 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1302 } else if (strcmp(*argv, "nodad") == 0) {
1303 req.ifa.ifa_flags |= IFA_F_NODAD;
1304 } else {
1305 if (strcmp(*argv, "local") == 0) {
1306 NEXT_ARG();
1307 }
1308 if (matches(*argv, "help") == 0)
1309 usage();
1310 if (local_len)
1311 duparg2("local", *argv);
1312 lcl_arg = *argv;
1313 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1314 if (req.ifa.ifa_family == AF_UNSPEC)
1315 req.ifa.ifa_family = lcl.family;
1316 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1317 local_len = lcl.bytelen;
1318 }
1319 argc--; argv++;
1320 }
1321 if (d == NULL) {
1322 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1323 return -1;
1324 }
1325 if (l && matches(d, l) != 0) {
1326 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1327 return -1;
1328 }
1329
1330 if (peer_len == 0 && local_len) {
1331 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1332 fprintf(stderr,
1333 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1334 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1335 " This special behaviour is likely to disappear in further releases,\n" \
1336 " fix your scripts!\n", lcl_arg, local_len*8);
1337 } else {
1338 peer = lcl;
1339 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1340 }
1341 }
1342 if (req.ifa.ifa_prefixlen == 0)
1343 req.ifa.ifa_prefixlen = lcl.bitlen;
1344
1345 if (brd_len < 0 && cmd != RTM_DELADDR) {
1346 inet_prefix brd;
1347 int i;
1348 if (req.ifa.ifa_family != AF_INET) {
1349 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1350 return -1;
1351 }
1352 brd = peer;
1353 if (brd.bitlen <= 30) {
1354 for (i=31; i>=brd.bitlen; i--) {
1355 if (brd_len == -1)
1356 brd.data[0] |= htonl(1<<(31-i));
1357 else
1358 brd.data[0] &= ~htonl(1<<(31-i));
1359 }
1360 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1361 brd_len = brd.bytelen;
1362 }
1363 }
1364 if (!scoped && cmd != RTM_DELADDR)
1365 req.ifa.ifa_scope = default_scope(&lcl);
1366
1367 ll_init_map(&rth);
1368
1369 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1370 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1371 return -1;
1372 }
1373
1374 if (valid_lftp || preferred_lftp) {
1375 if (!valid_lft) {
1376 fprintf(stderr, "valid_lft is zero\n");
1377 return -1;
1378 }
1379 if (valid_lft < preferred_lft) {
1380 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1381 return -1;
1382 }
1383
1384 memset(&cinfo, 0, sizeof(cinfo));
1385 cinfo.ifa_prefered = preferred_lft;
1386 cinfo.ifa_valid = valid_lft;
1387 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1388 sizeof(cinfo));
1389 }
1390
1391 if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
1392 return -2;
1393
1394 return 0;
1395 }
1396
1397 int do_ipaddr(int argc, char **argv)
1398 {
1399 if (argc < 1)
1400 return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
1401 if (matches(*argv, "add") == 0)
1402 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1403 if (matches(*argv, "change") == 0 ||
1404 strcmp(*argv, "chg") == 0)
1405 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1406 if (matches(*argv, "replace") == 0)
1407 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
1408 if (matches(*argv, "delete") == 0)
1409 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
1410 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1411 || matches(*argv, "lst") == 0)
1412 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
1413 if (matches(*argv, "flush") == 0)
1414 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
1415 if (matches(*argv, "save") == 0)
1416 return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
1417 if (matches(*argv, "showdump") == 0)
1418 return ipaddr_showdump();
1419 if (matches(*argv, "restore") == 0)
1420 return ipaddr_restore();
1421 if (matches(*argv, "help") == 0)
1422 usage();
1423 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);
1424 exit(-1);
1425 }
1426
Upstream mirror of iproute2