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>
18 #include <sys/ioctl.h>
19 #include <sys/socket.h>
20 #include <sys/ioctl.h>
21 #include <sys/errno.h>
22 #include <netinet/in.h>
23 #include <arpa/inet.h>
27 #include <linux/netdevice.h>
28 #include <linux/if_arp.h>
29 #include <linux/sockios.h>
34 #include "ip_common.h"
57 static void usage(void) __attribute__((noreturn));
59 static void usage(void)
64 fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
65 fprintf(stderr, " [ CONFFLAG-LIST ]\n");
66 fprintf(stderr, " ip addr del IFADDR dev STRING\n");
67 fprintf(stderr, " ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
68 fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\n");
69 fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
70 fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
71 fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
72 fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
73 fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
74 fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
75 fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
76 fprintf(stderr, " CONFFLAG-LIST ]\n");
77 fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
78 fprintf(stderr, "CONFFLAG := [ home | nodad ]\n");
79 fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
80 fprintf(stderr, "LFT := forever | SECONDS\n");
85 void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
88 if (flags & IFF_UP && !(flags & IFF_RUNNING))
89 fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
90 flags &= ~IFF_RUNNING;
91 #define _PF(f) if (flags&IFF_##f) { \
93 fprintf(fp, #f "%s", flags ? "," : ""); }
114 fprintf(fp, "%x", flags);
116 fprintf(fp, ",M-DOWN");
120 static const char *oper_states[] = {
121 "UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
122 "TESTING", "DORMANT", "UP"
125 static void print_operstate(FILE *f, __u8 state)
127 if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
128 fprintf(f, "state %#x ", state);
130 fprintf(f, "state %s ", oper_states[state]);
133 static void print_queuelen(FILE *f, const char *name)
138 s = socket(AF_INET, SOCK_STREAM, 0);
142 memset(&ifr, 0, sizeof(ifr));
143 strcpy(ifr.ifr_name, name);
144 if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
145 fprintf(f, "ioctl(SIOCGIFXQLEN) failed: %s\n", strerror(errno));
152 fprintf(f, "qlen %d", ifr.ifr_qlen);
155 static void print_linktype(FILE *fp, struct rtattr *tb)
157 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
158 struct link_util *lu;
161 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
163 if (!linkinfo[IFLA_INFO_KIND])
165 kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
167 fprintf(fp, "%s", _SL_);
168 fprintf(fp, " %s ", kind);
170 lu = get_link_kind(kind);
171 if (!lu || !lu->print_opt)
175 struct rtattr *attr[lu->maxattr+1], **data = NULL;
177 if (linkinfo[IFLA_INFO_DATA]) {
178 parse_rtattr_nested(attr, lu->maxattr,
179 linkinfo[IFLA_INFO_DATA]);
182 lu->print_opt(lu, fp, data);
184 if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
186 lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
190 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
192 struct ifla_vf_mac *vf_mac;
193 struct ifla_vf_vlan *vf_vlan;
194 struct ifla_vf_tx_rate *vf_tx_rate;
195 struct rtattr *vf[IFLA_VF_MAX+1];
198 if (vfinfo->rta_type != IFLA_VF_INFO) {
199 fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
203 parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
205 vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
206 vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
207 vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
209 fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
210 ll_addr_n2a((unsigned char *)&vf_mac->mac,
211 ETH_ALEN, 0, b1, sizeof(b1)));
213 fprintf(fp, ", vlan %d", vf_vlan->vlan);
215 fprintf(fp, ", qos %d", vf_vlan->qos);
216 if (vf_tx_rate->rate)
217 fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
220 int print_linkinfo(const struct sockaddr_nl *who,
221 struct nlmsghdr *n, void *arg)
223 FILE *fp = (FILE*)arg;
224 struct ifinfomsg *ifi = NLMSG_DATA(n);
225 struct rtattr * tb[IFLA_MAX+1];
226 int len = n->nlmsg_len;
229 if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
232 len -= NLMSG_LENGTH(sizeof(*ifi));
236 if (filter.ifindex && ifi->ifi_index != filter.ifindex)
238 if (filter.up && !(ifi->ifi_flags&IFF_UP))
241 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
242 if (tb[IFLA_IFNAME] == NULL) {
243 fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
246 (!filter.family || filter.family == AF_PACKET) &&
247 fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
250 if (n->nlmsg_type == RTM_DELLINK)
251 fprintf(fp, "Deleted ");
253 fprintf(fp, "%d: %s", ifi->ifi_index,
254 tb[IFLA_IFNAME] ? (char*)RTA_DATA(tb[IFLA_IFNAME]) : "<nil>");
258 int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
260 fprintf(fp, "@NONE: ");
262 fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
263 m_flag = ll_index_to_flags(iflink);
264 m_flag = !(m_flag & IFF_UP);
269 print_link_flags(fp, ifi->ifi_flags, m_flag);
272 fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
274 fprintf(fp, "qdisc %s ", (char*)RTA_DATA(tb[IFLA_QDISC]));
276 if (tb[IFLA_MASTER]) {
278 fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
281 if (tb[IFLA_OPERSTATE])
282 print_operstate(fp, *(__u8 *)RTA_DATA(tb[IFLA_OPERSTATE]));
284 if (filter.showqueue)
285 print_queuelen(fp, (char*)RTA_DATA(tb[IFLA_IFNAME]));
287 if (!filter.family || filter.family == AF_PACKET) {
289 fprintf(fp, "%s", _SL_);
290 fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
292 if (tb[IFLA_ADDRESS]) {
293 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
294 RTA_PAYLOAD(tb[IFLA_ADDRESS]),
298 if (tb[IFLA_BROADCAST]) {
299 if (ifi->ifi_flags&IFF_POINTOPOINT)
300 fprintf(fp, " peer ");
302 fprintf(fp, " brd ");
303 fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
304 RTA_PAYLOAD(tb[IFLA_BROADCAST]),
310 if (do_link && tb[IFLA_LINKINFO] && show_details)
311 print_linktype(fp, tb[IFLA_LINKINFO]);
313 if (do_link && tb[IFLA_IFALIAS])
314 fprintf(fp,"\n alias %s",
315 (const char *) RTA_DATA(tb[IFLA_IFALIAS]));
317 if (do_link && tb[IFLA_STATS64] && show_stats) {
318 struct rtnl_link_stats64 slocal;
319 struct rtnl_link_stats64 *s = RTA_DATA(tb[IFLA_STATS64]);
320 if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
321 memcpy(&slocal, s, sizeof(slocal));
324 fprintf(fp, "%s", _SL_);
325 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
326 s->rx_compressed ? "compressed" : "", _SL_);
327 fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
328 (unsigned long long)s->rx_bytes,
329 (unsigned long long)s->rx_packets,
330 (unsigned long long)s->rx_errors,
331 (unsigned long long)s->rx_dropped,
332 (unsigned long long)s->rx_over_errors,
333 (unsigned long long)s->multicast);
334 if (s->rx_compressed)
335 fprintf(fp, " %-7llu",
336 (unsigned long long)s->rx_compressed);
337 if (show_stats > 1) {
338 fprintf(fp, "%s", _SL_);
339 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
340 fprintf(fp, " %-7llu %-7llu %-7llu %-7llu %-7llu",
341 (unsigned long long)s->rx_length_errors,
342 (unsigned long long)s->rx_crc_errors,
343 (unsigned long long)s->rx_frame_errors,
344 (unsigned long long)s->rx_fifo_errors,
345 (unsigned long long)s->rx_missed_errors);
347 fprintf(fp, "%s", _SL_);
348 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
349 s->tx_compressed ? "compressed" : "", _SL_);
350 fprintf(fp, " %-10llu %-8llu %-7llu %-7llu %-7llu %-7llu",
351 (unsigned long long)s->tx_bytes,
352 (unsigned long long)s->tx_packets,
353 (unsigned long long)s->tx_errors,
354 (unsigned long long)s->tx_dropped,
355 (unsigned long long)s->tx_carrier_errors,
356 (unsigned long long)s->collisions);
357 if (s->tx_compressed)
358 fprintf(fp, " %-7llu",
359 (unsigned long long)s->tx_compressed);
360 if (show_stats > 1) {
361 fprintf(fp, "%s", _SL_);
362 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
363 fprintf(fp, " %-7llu %-7llu %-7llu %-7llu",
364 (unsigned long long)s->tx_aborted_errors,
365 (unsigned long long)s->tx_fifo_errors,
366 (unsigned long long)s->tx_window_errors,
367 (unsigned long long)s->tx_heartbeat_errors);
370 if (do_link && !tb[IFLA_STATS64] && tb[IFLA_STATS] && show_stats) {
371 struct rtnl_link_stats slocal;
372 struct rtnl_link_stats *s = RTA_DATA(tb[IFLA_STATS]);
373 if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
374 memcpy(&slocal, s, sizeof(slocal));
377 fprintf(fp, "%s", _SL_);
378 fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
379 s->rx_compressed ? "compressed" : "", _SL_);
380 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
381 s->rx_bytes, s->rx_packets, s->rx_errors,
382 s->rx_dropped, s->rx_over_errors,
385 if (s->rx_compressed)
386 fprintf(fp, " %-7u", s->rx_compressed);
387 if (show_stats > 1) {
388 fprintf(fp, "%s", _SL_);
389 fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
390 fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
398 fprintf(fp, "%s", _SL_);
399 fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
400 s->tx_compressed ? "compressed" : "", _SL_);
401 fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
402 s->tx_bytes, s->tx_packets, s->tx_errors,
403 s->tx_dropped, s->tx_carrier_errors, s->collisions);
404 if (s->tx_compressed)
405 fprintf(fp, " %-7u", s->tx_compressed);
406 if (show_stats > 1) {
407 fprintf(fp, "%s", _SL_);
408 fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
409 fprintf(fp, " %-7u %-7u %-7u %-7u",
410 s->tx_aborted_errors,
413 s->tx_heartbeat_errors
417 if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
418 struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
419 int rem = RTA_PAYLOAD(vflist);
420 for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
429 static int flush_update(void)
431 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
432 perror("Failed to send flush request");
439 static int set_lifetime(unsigned int *lifetime, char *argv)
441 if (strcmp(argv, "forever") == 0)
442 *lifetime = INFINITY_LIFE_TIME;
443 else if (get_u32(lifetime, argv, 0))
449 int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
452 FILE *fp = (FILE*)arg;
453 struct ifaddrmsg *ifa = NLMSG_DATA(n);
454 int len = n->nlmsg_len;
456 struct rtattr * rta_tb[IFA_MAX+1];
460 if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
462 len -= NLMSG_LENGTH(sizeof(*ifa));
464 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
468 if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
471 parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
473 if (!rta_tb[IFA_LOCAL])
474 rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
475 if (!rta_tb[IFA_ADDRESS])
476 rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
478 if (filter.ifindex && filter.ifindex != ifa->ifa_index)
480 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
482 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
487 if (rta_tb[IFA_LABEL])
488 label = RTA_DATA(rta_tb[IFA_LABEL]);
490 label = ll_idx_n2a(ifa->ifa_index, b1);
491 if (fnmatch(filter.label, label, 0) != 0)
494 if (filter.pfx.family) {
495 if (rta_tb[IFA_LOCAL]) {
497 memset(&dst, 0, sizeof(dst));
498 dst.family = ifa->ifa_family;
499 memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
500 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
505 if (filter.family && filter.family != ifa->ifa_family)
510 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
514 fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
515 memcpy(fn, n, n->nlmsg_len);
516 fn->nlmsg_type = RTM_DELADDR;
517 fn->nlmsg_flags = NLM_F_REQUEST;
518 fn->nlmsg_seq = ++rth.seq;
519 filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
525 if (n->nlmsg_type == RTM_DELADDR)
526 fprintf(fp, "Deleted ");
528 if (filter.oneline || filter.flushb)
529 fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
530 if (ifa->ifa_family == AF_INET)
531 fprintf(fp, " inet ");
532 else if (ifa->ifa_family == AF_INET6)
533 fprintf(fp, " inet6 ");
534 else if (ifa->ifa_family == AF_DECnet)
535 fprintf(fp, " dnet ");
536 else if (ifa->ifa_family == AF_IPX)
537 fprintf(fp, " ipx ");
539 fprintf(fp, " family %d ", ifa->ifa_family);
541 if (rta_tb[IFA_LOCAL]) {
542 fprintf(fp, "%s", rt_addr_n2a(ifa->ifa_family,
543 RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
544 RTA_DATA(rta_tb[IFA_LOCAL]),
545 abuf, sizeof(abuf)));
547 if (rta_tb[IFA_ADDRESS] == NULL ||
548 memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]), 4) == 0) {
549 fprintf(fp, "/%d ", ifa->ifa_prefixlen);
551 fprintf(fp, " peer %s/%d ",
552 rt_addr_n2a(ifa->ifa_family,
553 RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
554 RTA_DATA(rta_tb[IFA_ADDRESS]),
560 if (rta_tb[IFA_BROADCAST]) {
561 fprintf(fp, "brd %s ",
562 rt_addr_n2a(ifa->ifa_family,
563 RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
564 RTA_DATA(rta_tb[IFA_BROADCAST]),
565 abuf, sizeof(abuf)));
567 if (rta_tb[IFA_ANYCAST]) {
568 fprintf(fp, "any %s ",
569 rt_addr_n2a(ifa->ifa_family,
570 RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
571 RTA_DATA(rta_tb[IFA_ANYCAST]),
572 abuf, sizeof(abuf)));
574 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
575 if (ifa->ifa_flags&IFA_F_SECONDARY) {
576 ifa->ifa_flags &= ~IFA_F_SECONDARY;
577 if (ifa->ifa_family == AF_INET6)
578 fprintf(fp, "temporary ");
580 fprintf(fp, "secondary ");
582 if (ifa->ifa_flags&IFA_F_TENTATIVE) {
583 ifa->ifa_flags &= ~IFA_F_TENTATIVE;
584 fprintf(fp, "tentative ");
586 if (ifa->ifa_flags&IFA_F_DEPRECATED) {
587 ifa->ifa_flags &= ~IFA_F_DEPRECATED;
589 fprintf(fp, "deprecated ");
591 if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
592 ifa->ifa_flags &= ~IFA_F_HOMEADDRESS;
593 fprintf(fp, "home ");
595 if (ifa->ifa_flags&IFA_F_NODAD) {
596 ifa->ifa_flags &= ~IFA_F_NODAD;
597 fprintf(fp, "nodad ");
599 if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
600 fprintf(fp, "dynamic ");
602 ifa->ifa_flags &= ~IFA_F_PERMANENT;
603 if (ifa->ifa_flags&IFA_F_DADFAILED) {
604 ifa->ifa_flags &= ~IFA_F_DADFAILED;
605 fprintf(fp, "dadfailed ");
608 fprintf(fp, "flags %02x ", ifa->ifa_flags);
609 if (rta_tb[IFA_LABEL])
610 fprintf(fp, "%s", (char*)RTA_DATA(rta_tb[IFA_LABEL]));
611 if (rta_tb[IFA_CACHEINFO]) {
612 struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
614 fprintf(fp, "%s", _SL_);
615 if (ci->ifa_valid == INFINITY_LIFE_TIME)
616 sprintf(buf, "valid_lft forever");
618 sprintf(buf, "valid_lft %usec", ci->ifa_valid);
619 if (ci->ifa_prefered == INFINITY_LIFE_TIME)
620 sprintf(buf+strlen(buf), " preferred_lft forever");
623 sprintf(buf+strlen(buf), " preferred_lft %dsec",
626 sprintf(buf+strlen(buf), " preferred_lft %usec",
629 fprintf(fp, " %s", buf);
636 int print_addrinfo_primary(const struct sockaddr_nl *who, struct nlmsghdr *n,
639 struct ifaddrmsg *ifa = NLMSG_DATA(n);
641 if (!ifa->ifa_flags & IFA_F_SECONDARY)
644 return print_addrinfo(who, n, arg);
647 int print_addrinfo_secondary(const struct sockaddr_nl *who, struct nlmsghdr *n,
650 struct ifaddrmsg *ifa = NLMSG_DATA(n);
652 if (ifa->ifa_flags & IFA_F_SECONDARY)
655 return print_addrinfo(who, n, arg);
660 struct nlmsg_list *next;
664 static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
666 for ( ;ainfo ; ainfo = ainfo->next) {
667 struct nlmsghdr *n = &ainfo->h;
668 struct ifaddrmsg *ifa = NLMSG_DATA(n);
670 if (n->nlmsg_type != RTM_NEWADDR)
673 if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
676 if (ifa->ifa_index != ifindex ||
677 (filter.family && filter.family != ifa->ifa_family))
680 print_addrinfo(NULL, n, fp);
686 static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
689 struct nlmsg_list **linfo = (struct nlmsg_list**)arg;
690 struct nlmsg_list *h;
691 struct nlmsg_list **lp;
693 h = malloc(n->nlmsg_len+sizeof(void*));
697 memcpy(&h->h, n, n->nlmsg_len);
700 for (lp = linfo; *lp; lp = &(*lp)->next) /* NOTHING */;
703 ll_remember_index(who, n, NULL);
707 static int ipaddr_list_or_flush(int argc, char **argv, int flush)
709 struct nlmsg_list *linfo = NULL;
710 struct nlmsg_list *ainfo = NULL;
711 struct nlmsg_list *l, *n;
712 char *filter_dev = NULL;
715 ipaddr_reset_filter(oneline);
716 filter.showqueue = 1;
718 if (filter.family == AF_UNSPEC)
719 filter.family = preferred_family;
723 fprintf(stderr, "Flush requires arguments.\n");
726 if (filter.family == AF_PACKET) {
727 fprintf(stderr, "Cannot flush link addresses.\n");
733 if (strcmp(*argv, "to") == 0) {
735 get_prefix(&filter.pfx, *argv, filter.family);
736 if (filter.family == AF_UNSPEC)
737 filter.family = filter.pfx.family;
738 } else if (strcmp(*argv, "scope") == 0) {
741 filter.scopemask = -1;
742 if (rtnl_rtscope_a2n(&scope, *argv)) {
743 if (strcmp(*argv, "all") != 0)
744 invarg("invalid \"scope\"\n", *argv);
745 scope = RT_SCOPE_NOWHERE;
746 filter.scopemask = 0;
748 filter.scope = scope;
749 } else if (strcmp(*argv, "up") == 0) {
751 } else if (strcmp(*argv, "dynamic") == 0) {
752 filter.flags &= ~IFA_F_PERMANENT;
753 filter.flagmask |= IFA_F_PERMANENT;
754 } else if (strcmp(*argv, "permanent") == 0) {
755 filter.flags |= IFA_F_PERMANENT;
756 filter.flagmask |= IFA_F_PERMANENT;
757 } else if (strcmp(*argv, "secondary") == 0 ||
758 strcmp(*argv, "temporary") == 0) {
759 filter.flags |= IFA_F_SECONDARY;
760 filter.flagmask |= IFA_F_SECONDARY;
761 } else if (strcmp(*argv, "primary") == 0) {
762 filter.flags &= ~IFA_F_SECONDARY;
763 filter.flagmask |= IFA_F_SECONDARY;
764 } else if (strcmp(*argv, "tentative") == 0) {
765 filter.flags |= IFA_F_TENTATIVE;
766 filter.flagmask |= IFA_F_TENTATIVE;
767 } else if (strcmp(*argv, "deprecated") == 0) {
768 filter.flags |= IFA_F_DEPRECATED;
769 filter.flagmask |= IFA_F_DEPRECATED;
770 } else if (strcmp(*argv, "home") == 0) {
771 filter.flags |= IFA_F_HOMEADDRESS;
772 filter.flagmask |= IFA_F_HOMEADDRESS;
773 } else if (strcmp(*argv, "nodad") == 0) {
774 filter.flags |= IFA_F_NODAD;
775 filter.flagmask |= IFA_F_NODAD;
776 } else if (strcmp(*argv, "dadfailed") == 0) {
777 filter.flags |= IFA_F_DADFAILED;
778 filter.flagmask |= IFA_F_DADFAILED;
779 } else if (strcmp(*argv, "label") == 0) {
781 filter.label = *argv;
783 if (strcmp(*argv, "dev") == 0) {
786 if (matches(*argv, "help") == 0)
789 duparg2("dev", *argv);
795 if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
796 perror("Cannot send dump request");
800 if (rtnl_dump_filter(&rth, store_nlmsg, &linfo, NULL, NULL) < 0) {
801 fprintf(stderr, "Dump terminated\n");
806 filter.ifindex = ll_name_to_index(filter_dev);
807 if (filter.ifindex <= 0) {
808 fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
815 char flushb[4096-512];
817 filter.flushb = flushb;
819 filter.flushe = sizeof(flushb);
821 while (round < MAX_ROUNDS) {
822 const struct rtnl_dump_filter_arg a[3] = {
824 .filter = print_addrinfo_secondary,
830 .filter = print_addrinfo_primary,
842 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
843 perror("Cannot send dump request");
847 if (rtnl_dump_filter_l(&rth, a) < 0) {
848 fprintf(stderr, "Flush terminated\n");
851 if (filter.flushed == 0) {
854 printf("Nothing to flush.\n");
856 printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
862 if (flush_update() < 0)
866 printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
870 fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", MAX_ROUNDS); fflush(stderr);
874 if (filter.family != AF_PACKET) {
875 if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
876 perror("Cannot send dump request");
880 if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo, NULL, NULL) < 0) {
881 fprintf(stderr, "Dump terminated\n");
887 if (filter.family && filter.family != AF_PACKET) {
888 struct nlmsg_list **lp;
894 while ((l=*lp)!=NULL) {
896 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
897 struct nlmsg_list *a;
899 for (a=ainfo; a; a=a->next) {
900 struct nlmsghdr *n = &a->h;
901 struct ifaddrmsg *ifa = NLMSG_DATA(n);
903 if (ifa->ifa_index != ifi->ifi_index ||
904 (filter.family && filter.family != ifa->ifa_family))
906 if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
908 if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
910 if (filter.pfx.family || filter.label) {
911 struct rtattr *tb[IFA_MAX+1];
912 parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
914 tb[IFA_LOCAL] = tb[IFA_ADDRESS];
916 if (filter.pfx.family && tb[IFA_LOCAL]) {
918 memset(&dst, 0, sizeof(dst));
919 dst.family = ifa->ifa_family;
920 memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
921 if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
928 label = RTA_DATA(tb[IFA_LABEL]);
930 label = ll_idx_n2a(ifa->ifa_index, b1);
931 if (fnmatch(filter.label, label, 0) != 0)
946 for (l=linfo; l; l = n) {
948 if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
949 struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
950 if (filter.family != AF_PACKET)
951 print_selected_addrinfo(ifi->ifi_index, ainfo, stdout);
960 int ipaddr_list_link(int argc, char **argv)
962 preferred_family = AF_PACKET;
964 return ipaddr_list_or_flush(argc, argv, 0);
967 void ipaddr_reset_filter(int oneline)
969 memset(&filter, 0, sizeof(filter));
970 filter.oneline = oneline;
973 static int default_scope(inet_prefix *lcl)
975 if (lcl->family == AF_INET) {
976 if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
977 return RT_SCOPE_HOST;
982 static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
986 struct ifaddrmsg ifa;
991 char *lcl_arg = NULL;
992 char *valid_lftp = NULL;
993 char *preferred_lftp = NULL;
1001 __u32 preferred_lft = INFINITY_LIFE_TIME;
1002 __u32 valid_lft = INFINITY_LIFE_TIME;
1003 struct ifa_cacheinfo cinfo;
1005 memset(&req, 0, sizeof(req));
1007 req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
1008 req.n.nlmsg_flags = NLM_F_REQUEST | flags;
1009 req.n.nlmsg_type = cmd;
1010 req.ifa.ifa_family = preferred_family;
1013 if (strcmp(*argv, "peer") == 0 ||
1014 strcmp(*argv, "remote") == 0) {
1018 duparg("peer", *argv);
1019 get_prefix(&peer, *argv, req.ifa.ifa_family);
1020 peer_len = peer.bytelen;
1021 if (req.ifa.ifa_family == AF_UNSPEC)
1022 req.ifa.ifa_family = peer.family;
1023 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
1024 req.ifa.ifa_prefixlen = peer.bitlen;
1025 } else if (matches(*argv, "broadcast") == 0 ||
1026 strcmp(*argv, "brd") == 0) {
1030 duparg("broadcast", *argv);
1031 if (strcmp(*argv, "+") == 0)
1033 else if (strcmp(*argv, "-") == 0)
1036 get_addr(&addr, *argv, req.ifa.ifa_family);
1037 if (req.ifa.ifa_family == AF_UNSPEC)
1038 req.ifa.ifa_family = addr.family;
1039 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
1040 brd_len = addr.bytelen;
1042 } else if (strcmp(*argv, "anycast") == 0) {
1046 duparg("anycast", *argv);
1047 get_addr(&addr, *argv, req.ifa.ifa_family);
1048 if (req.ifa.ifa_family == AF_UNSPEC)
1049 req.ifa.ifa_family = addr.family;
1050 addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
1051 any_len = addr.bytelen;
1052 } else if (strcmp(*argv, "scope") == 0) {
1055 if (rtnl_rtscope_a2n(&scope, *argv))
1056 invarg(*argv, "invalid scope value.");
1057 req.ifa.ifa_scope = scope;
1059 } else if (strcmp(*argv, "dev") == 0) {
1062 } else if (strcmp(*argv, "label") == 0) {
1065 addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
1066 } else if (matches(*argv, "valid_lft") == 0) {
1068 duparg("valid_lft", *argv);
1071 if (set_lifetime(&valid_lft, *argv))
1072 invarg("valid_lft value", *argv);
1073 } else if (matches(*argv, "preferred_lft") == 0) {
1075 duparg("preferred_lft", *argv);
1077 preferred_lftp = *argv;
1078 if (set_lifetime(&preferred_lft, *argv))
1079 invarg("preferred_lft value", *argv);
1080 } else if (strcmp(*argv, "home") == 0) {
1081 req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
1082 } else if (strcmp(*argv, "nodad") == 0) {
1083 req.ifa.ifa_flags |= IFA_F_NODAD;
1085 if (strcmp(*argv, "local") == 0) {
1088 if (matches(*argv, "help") == 0)
1091 duparg2("local", *argv);
1093 get_prefix(&lcl, *argv, req.ifa.ifa_family);
1094 if (req.ifa.ifa_family == AF_UNSPEC)
1095 req.ifa.ifa_family = lcl.family;
1096 addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
1097 local_len = lcl.bytelen;
1102 fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
1105 if (l && matches(d, l) != 0) {
1106 fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
1110 if (peer_len == 0 && local_len) {
1111 if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
1113 "Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
1114 " Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
1115 " This special behaviour is likely to disappear in further releases,\n" \
1116 " fix your scripts!\n", lcl_arg, local_len*8);
1119 addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
1122 if (req.ifa.ifa_prefixlen == 0)
1123 req.ifa.ifa_prefixlen = lcl.bitlen;
1125 if (brd_len < 0 && cmd != RTM_DELADDR) {
1128 if (req.ifa.ifa_family != AF_INET) {
1129 fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
1133 if (brd.bitlen <= 30) {
1134 for (i=31; i>=brd.bitlen; i--) {
1136 brd.data[0] |= htonl(1<<(31-i));
1138 brd.data[0] &= ~htonl(1<<(31-i));
1140 addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
1141 brd_len = brd.bytelen;
1144 if (!scoped && cmd != RTM_DELADDR)
1145 req.ifa.ifa_scope = default_scope(&lcl);
1149 if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
1150 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1154 if (valid_lftp || preferred_lftp) {
1156 fprintf(stderr, "valid_lft is zero\n");
1159 if (valid_lft < preferred_lft) {
1160 fprintf(stderr, "preferred_lft is greater than valid_lft\n");
1164 memset(&cinfo, 0, sizeof(cinfo));
1165 cinfo.ifa_prefered = preferred_lft;
1166 cinfo.ifa_valid = valid_lft;
1167 addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
1171 if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
1177 int do_ipaddr(int argc, char **argv)
1180 return ipaddr_list_or_flush(0, NULL, 0);
1181 if (matches(*argv, "add") == 0)
1182 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
1183 if (matches(*argv, "change") == 0 ||
1184 strcmp(*argv, "chg") == 0)
1185 return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
1186 if (matches(*argv, "replace") == 0)
1187 return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
1188 if (matches(*argv, "delete") == 0)
1189 return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
1190 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
1191 || matches(*argv, "lst") == 0)
1192 return ipaddr_list_or_flush(argc-1, argv+1, 0);
1193 if (matches(*argv, "flush") == 0)
1194 return ipaddr_list_or_flush(argc-1, argv+1, 1);
1195 if (matches(*argv, "help") == 0)
1197 fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);