2 * ipaddress.c "ip address".
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.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
19 #include <sys/ioctl.h>
20 #include <sys/socket.h>
21 #include <sys/ioctl.h>
22 #include <sys/errno.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
28 #include <linux/netdevice.h>
29 #include <linux/if_arp.h>
30 #include <linux/sockios.h>
35 #include "ip_common.h"
58 static void usage(void) __attribute__((noreturn));
60 static void usage(void)
65 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
66 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
67 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
68 fprintf(stderr, " ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
69 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\n");
70 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
71 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
72 fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
73 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
74 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
75 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
76 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
77 fprintf(stderr, " CONFFLAG-LIST ]\n");
78 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
79 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
80 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
81 fprintf(stderr, "LFT := forever | SECONDS\n");
86 void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
89 if (flags & IFF_UP && !(flags & IFF_RUNNING))
90 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
91 flags &= ~IFF_RUNNING;
92 #define _PF(f) if (flags&IFF_##f) { \
94 fprintf(fp, #f "%s", flags ? "," : ""); }
115 fprintf(fp, "%x", flags);
117 fprintf(fp, ",M-DOWN");
121 static const char *oper_states[] = {
122 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
123 "TESTING", "DORMANT", "UP"
126 static void print_operstate(FILE *f, __u8 state)
128 if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
129 fprintf(f, "state %#x ", state);
131 fprintf(f, "state %s ", oper_states[state]);
134 int get_operstate(const char *name)
138 for (i = 0; i < sizeof(oper_states)/sizeof(oper_states[0]); i++)
139 if (strcasecmp(name, oper_states[i]) == 0)
144 static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
149 qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
152 int s = socket(AF_INET, SOCK_STREAM, 0);
157 memset(&ifr, 0, sizeof(ifr));
158 strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
159 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
160 fprintf(f, "ioctl(SIOCGIFXQLEN) failed: %s\n", strerror(errno));
168 fprintf(f, "qlen %d", qlen);
171 static const char *link_modes[] = {
175 static void print_linkmode(FILE *f, struct rtattr *tb)
177 unsigned int mode = rta_getattr_u8(tb);
179 if (mode >= sizeof(link_modes) / sizeof(link_modes[0]))
180 fprintf(f, "mode %d ", mode);
182 fprintf(f, "mode %s ", link_modes[mode]);
185 static void print_linktype(FILE *fp, struct rtattr *tb)
187 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
188 struct link_util *lu;
191 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
193 if (!linkinfo[IFLA_INFO_KIND])
195 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
197 fprintf(fp, "%s", _SL_);
198 fprintf(fp, " %s ", kind);
200 lu = get_link_kind(kind);
201 if (!lu || !lu->print_opt)
205 struct rtattr *attr[lu->maxattr+1], **data = NULL;
207 if (linkinfo[IFLA_INFO_DATA]) {
208 parse_rtattr_nested(attr, lu->maxattr,
209 linkinfo[IFLA_INFO_DATA]);
212 lu->print_opt(lu, fp, data);
214 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
216 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
220 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
222 struct ifla_vf_mac *vf_mac;
223 struct ifla_vf_vlan *vf_vlan;
224 struct ifla_vf_tx_rate *vf_tx_rate;
225 struct ifla_vf_spoofchk *vf_spoofchk;
226 struct rtattr *vf[IFLA_VF_MAX+1];
230 if (vfinfo->rta_type != IFLA_VF_INFO) {
231 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
235 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
237 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
238 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
239 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
241 /* Check if the spoof checking vf info type is supported by
244 tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
245 vf[IFLA_VF_TX_RATE]->rta_len);
247 if (tmp->rta_type != IFLA_VF_SPOOFCHK)
250 vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
252 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
253 ll_addr_n2a((unsigned char *)&vf_mac->mac,
254 ETH_ALEN, 0, b1, sizeof(b1)));
256 fprintf(fp, ", vlan %d", vf_vlan->vlan);
258 fprintf(fp, ", qos %d", vf_vlan->qos);
259 if (vf_tx_rate->rate)
260 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
261 if (vf_spoofchk && vf_spoofchk->setting != -1) {
262 if (vf_spoofchk->setting)
263 fprintf(fp, ", spoof checking on");
265 fprintf(fp, ", spoof checking off");
269 static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s) {
270 fprintf(fp, "%s", _SL_);
271 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
272 s->rx_compressed ? "compressed" : "", _SL_);
273 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
274 (uint64_t)s->rx_bytes,
275 (uint64_t)s->rx_packets,
276 (uint64_t)s->rx_errors,
277 (uint64_t)s->rx_dropped,
278 (uint64_t)s->rx_over_errors,
279 (uint64_t)s->multicast);
280 if (s->rx_compressed)
281 fprintf(fp, " %-7"PRIu64"",
282 (uint64_t)s->rx_compressed);
283 if (show_stats > 1) {
284 fprintf(fp, "%s", _SL_);
285 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
286 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
287 (uint64_t)s->rx_length_errors,
288 (uint64_t)s->rx_crc_errors,
289 (uint64_t)s->rx_frame_errors,
290 (uint64_t)s->rx_fifo_errors,
291 (uint64_t)s->rx_missed_errors);
293 fprintf(fp, "%s", _SL_);
294 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
295 (uint64_t)s->tx_compressed ? "compressed" : "", _SL_);
296 fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
297 (uint64_t)s->tx_bytes,
298 (uint64_t)s->tx_packets,
299 (uint64_t)s->tx_errors,
300 (uint64_t)s->tx_dropped,
301 (uint64_t)s->tx_carrier_errors,
302 (uint64_t)s->collisions);
303 if (s->tx_compressed)
304 fprintf(fp, " %-7"PRIu64"",
305 (uint64_t)s->tx_compressed);
306 if (show_stats > 1) {
307 fprintf(fp, "%s", _SL_);
308 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
309 fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
310 (uint64_t)s->tx_aborted_errors,
311 (uint64_t)s->tx_fifo_errors,
312 (uint64_t)s->tx_window_errors,
313 (uint64_t)s->tx_heartbeat_errors);
317 static void print_link_stats(FILE *fp, const struct rtnl_link_stats *s)
319 fprintf(fp, "%s", _SL_);
320 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
321 s->rx_compressed ? "compressed" : "", _SL_);
322 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
323 s->rx_bytes, s->rx_packets, s->rx_errors,
324 s->rx_dropped, s->rx_over_errors,
327 if (s->rx_compressed)
328 fprintf(fp, " %-7u", s->rx_compressed);
329 if (show_stats > 1) {
330 fprintf(fp, "%s", _SL_);
331 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
332 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
340 fprintf(fp, "%s", _SL_);
341 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
342 s->tx_compressed ? "compressed" : "", _SL_);
343 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
344 s->tx_bytes, s->tx_packets, s->tx_errors,
345 s->tx_dropped, s->tx_carrier_errors, s->collisions);
346 if (s->tx_compressed)
347 fprintf(fp, " %-7u", s->tx_compressed);
348 if (show_stats > 1) {
349 fprintf(fp, "%s", _SL_);
350 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
351 fprintf(fp, " %-7u %-7u %-7u %-7u",
352 s->tx_aborted_errors,
355 s->tx_heartbeat_errors
360 int print_linkinfo(const struct sockaddr_nl *who,
361 struct nlmsghdr *n, void *arg)
363 FILE *fp = (FILE*)arg;
364 struct ifinfomsg *ifi = NLMSG_DATA(n);
365 struct rtattr * tb[IFLA_MAX+1];
366 int len = n->nlmsg_len;
369 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
372 len -= NLMSG_LENGTH(sizeof(*ifi));
376 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
378 if (filter.up && !(ifi->ifi_flags&IFF_UP))
381 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
382 if (tb[IFLA_IFNAME] == NULL) {
383 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
386 (!filter.family || filter.family == AF_PACKET) &&
387 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
390 if (tb[IFLA_GROUP]) {
391 int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
392 if (group != filter.group)
396 if (n->nlmsg_type == RTM_DELLINK)
397 fprintf(fp, "Deleted ");
399 fprintf(fp, "%d: %s", ifi->ifi_index,
400 tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
404 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
406 fprintf(fp, "@NONE: ");
408 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
409 m_flag = ll_index_to_flags(iflink);
410 m_flag = !(m_flag & IFF_UP);
415 print_link_flags(fp, ifi->ifi_flags, m_flag);
418 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
420 fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
421 if (tb[IFLA_MASTER]) {
423 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
426 if (tb[IFLA_OPERSTATE])
427 print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
429 if (do_link && tb[IFLA_LINKMODE])
430 print_linkmode(fp, tb[IFLA_LINKMODE]);
432 if (filter.showqueue)
433 print_queuelen(fp, tb);
435 if (!filter.family || filter.family == AF_PACKET) {
437 fprintf(fp, "%s", _SL_);
438 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
440 if (tb[IFLA_ADDRESS]) {
441 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
442 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
446 if (tb[IFLA_BROADCAST]) {
447 if (ifi->ifi_flags&IFF_POINTOPOINT)
448 fprintf(fp, " peer ");
450 fprintf(fp, " brd ");
451 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
452 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
458 if (do_link && tb[IFLA_LINKINFO] && show_details)
459 print_linktype(fp, tb[IFLA_LINKINFO]);
461 if (do_link && tb[IFLA_IFALIAS])
462 fprintf(fp,"\n alias %s",
463 rta_getattr_str(tb[IFLA_IFALIAS]));
465 if (do_link && show_stats) {
466 if (tb[IFLA_STATS64])
467 print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
468 else if (tb[IFLA_STATS])
469 print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
472 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
473 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
474 int rem = RTA_PAYLOAD(vflist);
475 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
484 static int flush_update(void)
486 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
487 perror("Failed to send flush request");
494 static int set_lifetime(unsigned int *lifetime, char *argv)
496 if (strcmp(argv, "forever") == 0)
497 *lifetime = INFINITY_LIFE_TIME;
498 else if (get_u32(lifetime, argv, 0))
504 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
507 FILE *fp = (FILE*)arg;
508 struct ifaddrmsg *ifa = NLMSG_DATA(n);
509 int len = n->nlmsg_len;
511 /* Use local copy of ifa_flags to not interfere with filtering code */
512 unsigned int ifa_flags;
513 struct rtattr * rta_tb[IFA_MAX+1];
517 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
519 len -= NLMSG_LENGTH(sizeof(*ifa));
521 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
525 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
528 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
530 if (!rta_tb[IFA_LOCAL])
531 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
532 if (!rta_tb[IFA_ADDRESS])
533 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
535 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
537 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
539 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
544 if (rta_tb[IFA_LABEL])
545 label = RTA_DATA(rta_tb[IFA_LABEL]);
547 label = ll_idx_n2a(ifa->ifa_index, b1);
548 if (fnmatch(filter.label, label, 0) != 0)
551 if (filter.pfx.family) {
552 if (rta_tb[IFA_LOCAL]) {
554 memset(&dst, 0, sizeof(dst));
555 dst.family = ifa->ifa_family;
556 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
557 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
562 if (filter.family && filter.family != ifa->ifa_family)
567 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
571 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
572 memcpy(fn, n, n->nlmsg_len);
573 fn->nlmsg_type = RTM_DELADDR;
574 fn->nlmsg_flags = NLM_F_REQUEST;
575 fn->nlmsg_seq = ++rth.seq;
576 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
582 if (n->nlmsg_type == RTM_DELADDR)
583 fprintf(fp, "Deleted ");
585 if (filter.oneline || filter.flushb)
586 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
587 if (ifa->ifa_family == AF_INET)
588 fprintf(fp, " inet ");
589 else if (ifa->ifa_family == AF_INET6)
590 fprintf(fp, " inet6 ");
591 else if (ifa->ifa_family == AF_DECnet)
592 fprintf(fp, " dnet ");
593 else if (ifa->ifa_family == AF_IPX)
594 fprintf(fp, " ipx ");
596 fprintf(fp, " family %d ", ifa->ifa_family);
598 if (rta_tb[IFA_LOCAL]) {
599 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
600 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
601 RTA_DATA(rta_tb[IFA_LOCAL]),
602 abuf, sizeof(abuf)));
604 if (rta_tb[IFA_ADDRESS] == NULL ||
605 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]), 4) == 0) {
606 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
608 fprintf(fp, " peer %s/%d ",
609 rt_addr_n2a(ifa->ifa_family,
610 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
611 RTA_DATA(rta_tb[IFA_ADDRESS]),
617 if (rta_tb[IFA_BROADCAST]) {
618 fprintf(fp, "brd %s ",
619 rt_addr_n2a(ifa->ifa_family,
620 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
621 RTA_DATA(rta_tb[IFA_BROADCAST]),
622 abuf, sizeof(abuf)));
624 if (rta_tb[IFA_ANYCAST]) {
625 fprintf(fp, "any %s ",
626 rt_addr_n2a(ifa->ifa_family,
627 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
628 RTA_DATA(rta_tb[IFA_ANYCAST]),
629 abuf, sizeof(abuf)));
631 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
632 ifa_flags = ifa->ifa_flags;
633 if (ifa->ifa_flags&IFA_F_SECONDARY) {
634 ifa_flags &= ~IFA_F_SECONDARY;
635 if (ifa->ifa_family == AF_INET6)
636 fprintf(fp, "temporary ");
638 fprintf(fp, "secondary ");
640 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
641 ifa_flags &= ~IFA_F_TENTATIVE;
642 fprintf(fp, "tentative ");
644 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
645 ifa_flags &= ~IFA_F_DEPRECATED;
647 fprintf(fp, "deprecated ");
649 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
650 ifa_flags &= ~IFA_F_HOMEADDRESS;
651 fprintf(fp, "home ");
653 if (ifa->ifa_flags&IFA_F_NODAD) {
654 ifa_flags &= ~IFA_F_NODAD;
655 fprintf(fp, "nodad ");
657 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
658 fprintf(fp, "dynamic ");
660 ifa_flags &= ~IFA_F_PERMANENT;
661 if (ifa->ifa_flags&IFA_F_DADFAILED) {
662 ifa_flags &= ~IFA_F_DADFAILED;
663 fprintf(fp, "dadfailed ");
666 fprintf(fp, "flags %02x ", ifa_flags);
667 if (rta_tb[IFA_LABEL])
668 fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
669 if (rta_tb[IFA_CACHEINFO]) {
670 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
671 fprintf(fp, "%s", _SL_);
672 fprintf(fp, " valid_lft ");
673 if (ci->ifa_valid == INFINITY_LIFE_TIME)
674 fprintf(fp, "forever");
676 fprintf(fp, "%usec", ci->ifa_valid);
677 fprintf(fp, " preferred_lft ");
678 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
679 fprintf(fp, "forever");
682 fprintf(fp, "%dsec", ci->ifa_prefered);
684 fprintf(fp, "%usec", ci->ifa_prefered);
692 int print_addrinfo_primary(const struct sockaddr_nl *who, struct nlmsghdr *n,
695 struct ifaddrmsg *ifa = NLMSG_DATA(n);
697 if (ifa->ifa_flags & IFA_F_SECONDARY)
700 return print_addrinfo(who, n, arg);
703 int print_addrinfo_secondary(const struct sockaddr_nl *who, struct nlmsghdr *n,
706 struct ifaddrmsg *ifa = NLMSG_DATA(n);
708 if (!(ifa->ifa_flags & IFA_F_SECONDARY))
711 return print_addrinfo(who, n, arg);
716 struct nlmsg_list *next;
720 static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
722 for ( ;ainfo ; ainfo = ainfo->next) {
723 struct nlmsghdr *n = &ainfo->h;
724 struct ifaddrmsg *ifa = NLMSG_DATA(n);
726 if (n->nlmsg_type != RTM_NEWADDR)
729 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
732 if (ifa->ifa_index != ifindex ||
733 (filter.family && filter.family != ifa->ifa_family))
736 print_addrinfo(NULL, n, fp);
742 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
745 struct nlmsg_list **linfo = (struct nlmsg_list**)arg;
746 struct nlmsg_list *h;
747 struct nlmsg_list **lp;
749 h = malloc(n->nlmsg_len+sizeof(void*));
753 memcpy(&h->h, n, n->nlmsg_len);
756 for (lp = linfo; *lp; lp = &(*lp)->next) /* NOTHING */;
759 ll_remember_index(who, n, NULL);
763 static int ipaddr_list_or_flush(int argc, char **argv, int flush)
765 struct nlmsg_list *linfo = NULL;
766 struct nlmsg_list *ainfo = NULL;
767 struct nlmsg_list *l, *n;
768 char *filter_dev = NULL;
771 ipaddr_reset_filter(oneline);
772 filter.showqueue = 1;
774 if (filter.family == AF_UNSPEC)
775 filter.family = preferred_family;
777 filter.group = INIT_NETDEV_GROUP;
781 fprintf(stderr, "Flush requires arguments.\n");
785 if (filter.family == AF_PACKET) {
786 fprintf(stderr, "Cannot flush link addresses.\n");
792 if (strcmp(*argv, "to") == 0) {
794 get_prefix(&filter.pfx, *argv, filter.family);
795 if (filter.family == AF_UNSPEC)
796 filter.family = filter.pfx.family;
797 } else if (strcmp(*argv, "scope") == 0) {
800 filter.scopemask = -1;
801 if (rtnl_rtscope_a2n(&scope, *argv)) {
802 if (strcmp(*argv, "all") != 0)
803 invarg("invalid \"scope\"\n", *argv);
804 scope = RT_SCOPE_NOWHERE;
805 filter.scopemask = 0;
807 filter.scope = scope;
808 } else if (strcmp(*argv, "up") == 0) {
810 } else if (strcmp(*argv, "dynamic") == 0) {
811 filter.flags &= ~IFA_F_PERMANENT;
812 filter.flagmask |= IFA_F_PERMANENT;
813 } else if (strcmp(*argv, "permanent") == 0) {
814 filter.flags |= IFA_F_PERMANENT;
815 filter.flagmask |= IFA_F_PERMANENT;
816 } else if (strcmp(*argv, "secondary") == 0 ||
817 strcmp(*argv, "temporary") == 0) {
818 filter.flags |= IFA_F_SECONDARY;
819 filter.flagmask |= IFA_F_SECONDARY;
820 } else if (strcmp(*argv, "primary") == 0) {
821 filter.flags &= ~IFA_F_SECONDARY;
822 filter.flagmask |= IFA_F_SECONDARY;
823 } else if (strcmp(*argv, "tentative") == 0) {
824 filter.flags |= IFA_F_TENTATIVE;
825 filter.flagmask |= IFA_F_TENTATIVE;
826 } else if (strcmp(*argv, "deprecated") == 0) {
827 filter.flags |= IFA_F_DEPRECATED;
828 filter.flagmask |= IFA_F_DEPRECATED;
829 } else if (strcmp(*argv, "home") == 0) {
830 filter.flags |= IFA_F_HOMEADDRESS;
831 filter.flagmask |= IFA_F_HOMEADDRESS;
832 } else if (strcmp(*argv, "nodad") == 0) {
833 filter.flags |= IFA_F_NODAD;
834 filter.flagmask |= IFA_F_NODAD;
835 } else if (strcmp(*argv, "dadfailed") == 0) {
836 filter.flags |= IFA_F_DADFAILED;
837 filter.flagmask |= IFA_F_DADFAILED;
838 } else if (strcmp(*argv, "label") == 0) {
840 filter.label = *argv;
841 } else if (strcmp(*argv, "group") == 0) {
843 if (rtnl_group_a2n(&filter.group, *argv))
844 invarg("Invalid \"group\" value\n", *argv);
846 if (strcmp(*argv, "dev") == 0) {
849 if (matches(*argv, "help") == 0)
852 duparg2("dev", *argv);
858 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
859 perror("Cannot send dump request");
863 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
864 fprintf(stderr, "Dump terminated\n");
869 filter.ifindex = ll_name_to_index(filter_dev);
870 if (filter.ifindex <= 0) {
871 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
878 char flushb[4096-512];
880 filter.flushb = flushb;
882 filter.flushe = sizeof(flushb);
884 while ((max_flush_loops == 0) || (round < max_flush_loops)) {
885 const struct rtnl_dump_filter_arg a[3] = {
887 .filter = print_addrinfo_secondary,
891 .filter = print_addrinfo_primary,
899 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
900 perror("Cannot send dump request");
904 if (rtnl_dump_filter_l(&rth, a) < 0) {
905 fprintf(stderr, "Flush terminated\n");
908 if (filter.flushed == 0) {
912 printf("Nothing to flush.\n");
914 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
920 if (flush_update() < 0)
924 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
928 /* If we are flushing, and specifying primary, then we
929 * want to flush only a single round. Otherwise, we'll
930 * start flushing secondaries that were promoted to
933 if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
936 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
941 if (filter.family != AF_PACKET) {
942 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
943 perror("Cannot send dump request");
947 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
948 fprintf(stderr, "Dump terminated\n");
954 if (filter.family && filter.family != AF_PACKET) {
955 struct nlmsg_list **lp;
961 while ((l=*lp)!=NULL) {
963 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
964 struct nlmsg_list *a;
966 for (a=ainfo; a; a=a->next) {
967 struct nlmsghdr *n = &a->h;
968 struct ifaddrmsg *ifa = NLMSG_DATA(n);
970 if (ifa->ifa_index != ifi->ifi_index ||
971 (filter.family && filter.family != ifa->ifa_family))
973 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
975 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
977 if (filter.pfx.family || filter.label) {
978 struct rtattr *tb[IFA_MAX+1];
979 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
981 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
983 if (filter.pfx.family && tb[IFA_LOCAL]) {
985 memset(&dst, 0, sizeof(dst));
986 dst.family = ifa->ifa_family;
987 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
988 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
995 label = RTA_DATA(tb[IFA_LABEL]);
997 label = ll_idx_n2a(ifa->ifa_index, b1);
998 if (fnmatch(filter.label, label, 0) != 0)
1013 for (l=linfo; l; l = n) {
1015 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
1016 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
1017 if (filter.family != AF_PACKET)
1018 print_selected_addrinfo(ifi->ifi_index, ainfo, stdout);
1027 int ipaddr_list_link(int argc, char **argv)
1029 preferred_family = AF_PACKET;
1031 return ipaddr_list_or_flush(argc, argv, 0);
1034 void ipaddr_reset_filter(int oneline)
1036 memset(&filter, 0, sizeof(filter));
1037 filter.oneline = oneline;
1040 static int default_scope(inet_prefix *lcl)
1042 if (lcl->family == AF_INET) {
1043 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
1044 return RT_SCOPE_HOST;
1049 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
1053 struct ifaddrmsg ifa;
1058 char *lcl_arg = NULL;
1059 char *valid_lftp = NULL;
1060 char *preferred_lftp = NULL;
1068 __u32 preferred_lft = INFINITY_LIFE_TIME;
1069 __u32 valid_lft = INFINITY_LIFE_TIME;
1070 struct ifa_cacheinfo cinfo;
1072 memset(&req, 0, sizeof(req));
1074 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
1075 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
1076 req.n.nlmsg_type = cmd;
1077 req.ifa.ifa_family = preferred_family;
1080 if (strcmp(*argv, "peer") == 0 ||
1081 strcmp(*argv, "remote") == 0) {
1085 duparg("peer", *argv);
1086 get_prefix(&peer, *argv, req.ifa.ifa_family);
1087 peer_len = peer.bytelen;
1088 if (req.ifa.ifa_family == AF_UNSPEC)
1089 req.ifa.ifa_family = peer.family;
1090 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1091 req.ifa.ifa_prefixlen = peer.bitlen;
1092 } else if (matches(*argv, "broadcast") == 0 ||
1093 strcmp(*argv, "brd") == 0) {
1097 duparg("broadcast", *argv);
1098 if (strcmp(*argv, "+") == 0)
1100 else if (strcmp(*argv, "-") == 0)
1103 get_addr(&addr, *argv, req.ifa.ifa_family);
1104 if (req.ifa.ifa_family == AF_UNSPEC)
1105 req.ifa.ifa_family = addr.family;
1106 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1107 brd_len = addr.bytelen;
1109 } else if (strcmp(*argv, "anycast") == 0) {
1113 duparg("anycast", *argv);
1114 get_addr(&addr, *argv, req.ifa.ifa_family);
1115 if (req.ifa.ifa_family == AF_UNSPEC)
1116 req.ifa.ifa_family = addr.family;
1117 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1118 any_len = addr.bytelen;
1119 } else if (strcmp(*argv, "scope") == 0) {
1122 if (rtnl_rtscope_a2n(&scope, *argv))
1123 invarg(*argv, "invalid scope value.");
1124 req.ifa.ifa_scope = scope;
1126 } else if (strcmp(*argv, "dev") == 0) {
1129 } else if (strcmp(*argv, "label") == 0) {
1132 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1133 } else if (matches(*argv, "valid_lft") == 0) {
1135 duparg("valid_lft", *argv);
1138 if (set_lifetime(&valid_lft, *argv))
1139 invarg("valid_lft value", *argv);
1140 } else if (matches(*argv, "preferred_lft") == 0) {
1142 duparg("preferred_lft", *argv);
1144 preferred_lftp = *argv;
1145 if (set_lifetime(&preferred_lft, *argv))
1146 invarg("preferred_lft value", *argv);
1147 } else if (strcmp(*argv, "home") == 0) {
1148 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1149 } else if (strcmp(*argv, "nodad") == 0) {
1150 req.ifa.ifa_flags |= IFA_F_NODAD;
1152 if (strcmp(*argv, "local") == 0) {
1155 if (matches(*argv, "help") == 0)
1158 duparg2("local", *argv);
1160 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1161 if (req.ifa.ifa_family == AF_UNSPEC)
1162 req.ifa.ifa_family = lcl.family;
1163 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1164 local_len = lcl.bytelen;
1169 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1172 if (l && matches(d, l) != 0) {
1173 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1177 if (peer_len == 0 && local_len) {
1178 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1180 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1181 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1182 " This special behaviour is likely to disappear in further releases,\n" \
1183 " fix your scripts!\n", lcl_arg, local_len*8);
1186 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1189 if (req.ifa.ifa_prefixlen == 0)
1190 req.ifa.ifa_prefixlen = lcl.bitlen;
1192 if (brd_len < 0 && cmd != RTM_DELADDR) {
1195 if (req.ifa.ifa_family != AF_INET) {
1196 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1200 if (brd.bitlen <= 30) {
1201 for (i=31; i>=brd.bitlen; i--) {
1203 brd.data[0] |= htonl(1<<(31-i));
1205 brd.data[0] &= ~htonl(1<<(31-i));
1207 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1208 brd_len = brd.bytelen;
1211 if (!scoped && cmd != RTM_DELADDR)
1212 req.ifa.ifa_scope = default_scope(&lcl);
1216 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1217 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1221 if (valid_lftp || preferred_lftp) {
1223 fprintf(stderr, "valid_lft is zero\n");
1226 if (valid_lft < preferred_lft) {
1227 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1231 memset(&cinfo, 0, sizeof(cinfo));
1232 cinfo.ifa_prefered = preferred_lft;
1233 cinfo.ifa_valid = valid_lft;
1234 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1238 if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
1244 int do_ipaddr(int argc, char **argv)
1247 return ipaddr_list_or_flush(0, NULL, 0);
1248 if (matches(*argv, "add") == 0)
1249 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1250 if (matches(*argv, "change") == 0 ||
1251 strcmp(*argv, "chg") == 0)
1252 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1253 if (matches(*argv, "replace") == 0)
1254 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
1255 if (matches(*argv, "delete") == 0)
1256 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
1257 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1258 || matches(*argv, "lst") == 0)
1259 return ipaddr_list_or_flush(argc-1, argv+1, 0);
1260 if (matches(*argv, "flush") == 0)
1261 return ipaddr_list_or_flush(argc-1, argv+1, 1);
1262 if (matches(*argv, "help") == 0)
1264 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);