2 /* $KAME: ndp.c,v 1.104 2003/06/27 07:48:39 itojun Exp $ */
5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * Copyright (c) 1984, 1993
34 * The Regents of the University of California. All rights reserved.
36 * This code is derived from software contributed to Berkeley by
37 * Sun Microsystems, Inc.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
47 * 4. Neither the name of the University nor the names of its contributors
48 * may be used to endorse or promote products derived from this software
49 * without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * "@(#) Copyright (c) 1984, 1993\n\
67 * The Regents of the University of California. All rights reserved.\n";
69 * "@(#)arp.c 8.2 (Berkeley) 1/2/94";
73 * ndp - display, set, delete and flush neighbor cache
77 #include <sys/param.h>
79 #include <sys/ioctl.h>
80 #include <sys/socket.h>
81 #include <sys/sysctl.h>
83 #include <sys/queue.h>
86 #include <net/if_var.h>
87 #include <net/if_dl.h>
88 #include <net/if_types.h>
89 #include <net/route.h>
91 #include <netinet/in.h>
92 #include <netinet/if_ether.h>
94 #include <netinet/icmp6.h>
95 #include <netinet6/in6_var.h>
96 #include <netinet6/nd6.h>
98 #include <arpa/inet.h>
110 #include "gmt2local.h"
112 /* packing rule for routing socket */
114 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
115 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
117 #define NEXTADDR(w, s) \
118 if (rtm->rtm_addrs & (w)) { \
119 bcopy((char *)&s, cp, sizeof(s)); cp += SA_SIZE(&s);}
125 static int32_t thiszone; /* time difference with gmt */
127 static int repeat = 0;
129 char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
130 char host_buf[NI_MAXHOST]; /* getnameinfo() */
131 char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
133 int main(int, char **);
135 void getsocket(void);
136 int set(int, char **);
139 void dump(struct in6_addr *, int);
140 static struct in6_nbrinfo *getnbrinfo(struct in6_addr *, int, int);
141 static char *ether_str(struct sockaddr_dl *);
142 int ndp_ether_aton(char *, u_char *);
145 void ifinfo(char *, int, char **);
148 void pfx_flush(void);
149 void rtr_flush(void);
150 void harmonize_rtr(void);
151 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
152 static void getdefif(void);
153 static void setdefif(char *);
155 static char *sec2str(time_t);
156 static void ts_print(const struct timeval *);
158 #ifdef ICMPV6CTL_ND6_DRLIST
159 static char *rtpref_str[] = {
178 thiszone = gmt2local(0);
179 while ((ch = getopt(argc, argv, "acd:f:Ii:nprstA:HPR")) != -1)
219 repeat = atoi(optarg);
239 dump(0, mode == 'c');
249 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
253 } else if (argc == 1) {
254 if (strcmp(*argv, "delete") == 0 ||
255 if_nametoindex(*argv))
258 errx(1, "invalid interface %s", *argv);
260 getdefif(); /* always call it to print the result */
263 errx(1, "not supported yet");
274 ifinfo(arg, argc, argv);
284 if (argc < 2 || argc > 4)
286 exit(set(argc, argv) ? 1 : 0);
320 * Process a file to set standard ndp entries
328 char line[100], arg[5][50], *args[5];
330 if ((fp = fopen(name, "r")) == NULL) {
331 fprintf(stderr, "ndp: cannot open %s\n", name);
334 args[0] = &arg[0][0];
335 args[1] = &arg[1][0];
336 args[2] = &arg[2][0];
337 args[3] = &arg[3][0];
338 args[4] = &arg[4][0];
340 while (fgets(line, sizeof(line), fp) != NULL) {
341 i = sscanf(line, "%49s %49s %49s %49s %49s",
342 arg[0], arg[1], arg[2], arg[3], arg[4]);
344 fprintf(stderr, "ndp: bad line: %s\n", line);
359 s = socket(PF_ROUTE, SOCK_RAW, 0);
367 struct sockaddr_in6 so_mask = {sizeof(so_mask), AF_INET6 };
368 struct sockaddr_in6 blank_sin = {sizeof(blank_sin), AF_INET6 }, sin_m;
369 struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m;
371 int flags, found_entry;
373 struct rt_msghdr m_rtm;
378 * Set an individual neighbor cache entry
385 register struct sockaddr_in6 *sin = &sin_m;
386 register struct sockaddr_dl *sdl;
387 register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
388 struct addrinfo hints, *res;
391 char *host = argv[0], *eaddr = argv[1];
399 bzero(&hints, sizeof(hints));
400 hints.ai_family = AF_INET6;
401 gai_error = getaddrinfo(host, NULL, &hints, &res);
403 fprintf(stderr, "ndp: %s: %s\n", host,
404 gai_strerror(gai_error));
407 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
409 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
410 ea = (u_char *)LLADDR(&sdl_m);
411 if (ndp_ether_aton(eaddr, ea) == 0)
413 flags = expire_time = 0;
415 if (strncmp(argv[0], "temp", 4) == 0) {
418 gettimeofday(&now, 0);
419 expire_time = now.tv_sec + 20 * 60;
420 } else if (strncmp(argv[0], "proxy", 5) == 0)
421 flags |= RTF_ANNOUNCE;
424 if (rtmsg(RTM_GET) < 0) {
425 errx(1, "RTM_GET(%s) failed", host);
428 sin = (struct sockaddr_in6 *)(rtm + 1);
429 sdl = (struct sockaddr_dl *)(ROUNDUP(sin->sin6_len) + (char *)sin);
430 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
431 if (sdl->sdl_family == AF_LINK &&
432 !(rtm->rtm_flags & RTF_GATEWAY)) {
433 switch (sdl->sdl_type) {
434 case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
435 case IFT_ISO88024: case IFT_ISO88025:
436 case IFT_L2VLAN: case IFT_BRIDGE:
440 fprintf(stderr, "set: cannot configure a new entry\n");
445 if (sdl->sdl_family != AF_LINK) {
446 printf("cannot intuit interface index and type for %s\n", host);
449 sdl_m.sdl_type = sdl->sdl_type;
450 sdl_m.sdl_index = sdl->sdl_index;
451 return (rtmsg(RTM_ADD));
455 * Display an individual neighbor cache entry
461 struct sockaddr_in6 *sin = &sin_m;
462 struct addrinfo hints, *res;
466 bzero(&hints, sizeof(hints));
467 hints.ai_family = AF_INET6;
468 gai_error = getaddrinfo(host, NULL, &hints, &res);
470 fprintf(stderr, "ndp: %s: %s\n", host,
471 gai_strerror(gai_error));
474 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
475 dump(&sin->sin6_addr, 0);
476 if (found_entry == 0) {
477 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
478 sizeof(host_buf), NULL ,0,
479 (nflag ? NI_NUMERICHOST : 0));
480 printf("%s (%s) -- no entry\n", host, host_buf);
486 * Delete a neighbor cache entry
492 struct sockaddr_in6 *sin = &sin_m;
493 register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
494 register char *cp = m_rtmsg.m_space;
495 struct sockaddr_dl *sdl;
496 struct addrinfo hints, *res;
502 bzero(&hints, sizeof(hints));
503 hints.ai_family = AF_INET6;
504 gai_error = getaddrinfo(host, NULL, &hints, &res);
506 fprintf(stderr, "ndp: %s: %s\n", host,
507 gai_strerror(gai_error));
510 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
512 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
513 if (rtmsg(RTM_GET) < 0) {
514 errx(1, "RTM_GET(%s) failed", host);
517 sin = (struct sockaddr_in6 *)(rtm + 1);
518 sdl = (struct sockaddr_dl *)(ROUNDUP(sin->sin6_len) + (char *)sin);
519 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
520 if (sdl->sdl_family == AF_LINK &&
521 !(rtm->rtm_flags & RTF_GATEWAY)) {
524 fprintf(stderr, "delete: cannot delete non-NDP entry\n");
529 if (sdl->sdl_family != AF_LINK) {
530 printf("cannot locate %s\n", host);
534 * need to reinit the field because it has rt_key
535 * but we want the actual address
537 NEXTADDR(RTA_DST, sin_m);
538 rtm->rtm_flags |= RTF_LLDATA;
539 if (rtmsg(RTM_DELETE) == 0) {
540 getnameinfo((struct sockaddr *)sin,
541 sin->sin6_len, host_buf,
542 sizeof(host_buf), NULL, 0,
543 (nflag ? NI_NUMERICHOST : 0));
544 printf("%s (%s) deleted\n", host, host_buf);
555 * Dump the entire neighbor cache
559 struct in6_addr *addr;
564 char *lim, *buf, *next;
565 struct rt_msghdr *rtm;
566 struct sockaddr_in6 *sin;
567 struct sockaddr_dl *sdl;
569 struct in6_nbrinfo *nbi;
578 if (!tflag && !cflag)
579 printf("%-*.*s %-*.*s %*.*s %-9.9s %1s %5s\n",
580 W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
581 W_IF, W_IF, "Netif", "Expire", "S", "Flags");
588 mib[4] = NET_RT_FLAGS;
594 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
595 err(1, "sysctl(PF_ROUTE estimate)");
597 if ((buf = malloc(needed)) == NULL)
599 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
600 err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)");
605 for (next = buf; next && next < lim; next += rtm->rtm_msglen) {
606 int isrouter = 0, prbs = 0;
608 rtm = (struct rt_msghdr *)next;
609 sin = (struct sockaddr_in6 *)(rtm + 1);
610 sdl = (struct sockaddr_dl *)((char *)sin + ROUNDUP(sin->sin6_len));
613 * Some OSes can produce a route that has the LINK flag but
614 * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD
615 * and BSD/OS, where xx is not the interface identifier on
616 * lo0). Such routes entry would annoy getnbrinfo() below,
618 * XXX: such routes should have the GATEWAY flag, not the
619 * LINK flag. However, there is rotten routing software
620 * that advertises all routes that have the GATEWAY flag.
621 * Thus, KAME kernel intentionally does not set the LINK flag.
622 * What is to be fixed is not ndp, but such routing software
623 * (and the kernel workaround)...
625 if (sdl->sdl_family != AF_LINK)
628 if (!(rtm->rtm_flags & RTF_HOST))
632 if (!IN6_ARE_ADDR_EQUAL(addr, &sin->sin6_addr))
635 } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
637 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) ||
638 IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) {
639 /* XXX: should scope id be filled in the kernel? */
640 if (sin->sin6_scope_id == 0)
641 sin->sin6_scope_id = sdl->sdl_index;
643 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
644 sizeof(host_buf), NULL, 0, (nflag ? NI_NUMERICHOST : 0));
647 if (rtm->rtm_flags & RTF_WASCLONED)
649 #elif defined(RTF_CLONED)
650 if (rtm->rtm_flags & RTF_CLONED)
657 gettimeofday(&now, 0);
661 addrwidth = strlen(host_buf);
662 if (addrwidth < W_ADDR)
664 llwidth = strlen(ether_str(sdl));
665 if (W_ADDR + W_LL - addrwidth > llwidth)
666 llwidth = W_ADDR + W_LL - addrwidth;
667 ifname = if_indextoname(sdl->sdl_index, ifix_buf);
670 ifwidth = strlen(ifname);
671 if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth)
672 ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth;
674 printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf,
675 llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname);
677 /* Print neighbor discovery specific informations */
678 nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1);
680 if (nbi->expire > now.tv_sec) {
682 sec2str(nbi->expire - now.tv_sec));
683 } else if (nbi->expire == 0)
684 printf(" %-9.9s", "permanent");
686 printf(" %-9.9s", "expired");
688 switch (nbi->state) {
689 case ND6_LLINFO_NOSTATE:
692 #ifdef ND6_LLINFO_WAITDELETE
693 case ND6_LLINFO_WAITDELETE:
697 case ND6_LLINFO_INCOMPLETE:
700 case ND6_LLINFO_REACHABLE:
703 case ND6_LLINFO_STALE:
706 case ND6_LLINFO_DELAY:
709 case ND6_LLINFO_PROBE:
717 isrouter = nbi->isrouter;
720 warnx("failed to get neighbor information");
725 * other flags. R: router, P: proxy, W: ??
727 if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
728 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
730 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
732 sin = (struct sockaddr_in6 *)
733 (sdl->sdl_len + (char *)sdl);
734 #if 0 /* W and P are mystery even for us */
735 snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s",
737 !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr) ? "P" : "",
738 (sin->sin6_len != sizeof(struct sockaddr_in6)) ? "W" : "",
739 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
741 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
743 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
746 printf(" %s", flgbuf);
764 static struct in6_nbrinfo *
765 getnbrinfo(addr, ifindex, warning)
766 struct in6_addr *addr;
770 static struct in6_nbrinfo nbi;
773 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
776 bzero(&nbi, sizeof(nbi));
777 if_indextoname(ifindex, nbi.ifname);
779 if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
781 warn("ioctl(SIOCGNBRINFO_IN6)");
791 ether_str(struct sockaddr_dl *sdl)
793 static char hbuf[NI_MAXHOST];
796 if (sdl->sdl_alen == ETHER_ADDR_LEN) {
797 strlcpy(hbuf, ether_ntoa((struct ether_addr *)LLADDR(sdl)),
799 } else if (sdl->sdl_alen) {
800 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
801 snprintf(hbuf, sizeof(hbuf), "%s", link_ntoa(sdl) + n);
803 snprintf(hbuf, sizeof(hbuf), "(incomplete)");
815 i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2],
816 &o[3], &o[4], &o[5]);
818 fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a);
821 for (i = 0; i < 6; i++)
829 printf("usage: ndp [-nt] hostname\n");
830 printf(" ndp [-nt] -a | -c | -p | -r | -H | -P | -R\n");
831 printf(" ndp [-nt] -A wait\n");
832 printf(" ndp [-nt] -d hostname\n");
833 printf(" ndp [-nt] -f filename\n");
834 printf(" ndp [-nt] -i interface [flags...]\n");
835 #ifdef SIOCSDEFIFACE_IN6
836 printf(" ndp [-nt] -I [interface|delete]\n");
838 printf(" ndp [-nt] -s nodename etheraddr [temp] [proxy]\n");
848 register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
849 register char *cp = m_rtmsg.m_space;
853 if (cmd == RTM_DELETE)
855 bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
856 rtm->rtm_flags = flags;
857 rtm->rtm_version = RTM_VERSION;
861 fprintf(stderr, "ndp: internal wrong cmd\n");
864 rtm->rtm_addrs |= RTA_GATEWAY;
866 rtm->rtm_rmx.rmx_expire = expire_time;
867 rtm->rtm_inits = RTV_EXPIRE;
869 rtm->rtm_flags |= (RTF_HOST | RTF_STATIC | RTF_LLDATA);
870 #if 0 /* we don't support ipv6addr/128 type proxying */
871 if (rtm->rtm_flags & RTF_ANNOUNCE) {
872 rtm->rtm_flags &= ~RTF_HOST;
873 rtm->rtm_addrs |= RTA_NETMASK;
878 rtm->rtm_addrs |= RTA_DST;
881 NEXTADDR(RTA_DST, sin_m);
882 NEXTADDR(RTA_GATEWAY, sdl_m);
883 #if 0 /* we don't support ipv6addr/128 type proxying */
884 memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
885 NEXTADDR(RTA_NETMASK, so_mask);
888 rtm->rtm_msglen = cp - (char *)&m_rtmsg;
891 rtm->rtm_seq = ++seq;
893 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
894 if (errno != ESRCH || cmd != RTM_DELETE) {
895 err(1, "writing to routing socket");
900 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
901 } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
903 (void) fprintf(stderr, "ndp: read from routing socket: %s\n",
909 ifinfo(ifname, argc, argv)
914 struct in6_ndireq nd;
917 #ifdef IPV6CTL_USETEMPADDR
921 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
925 bzero(&nd, sizeof(nd));
926 strlcpy(nd.ifname, ifname, sizeof(nd.ifname));
927 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
928 err(1, "ioctl(SIOCGIFINFO_IN6)");
933 for (i = 0; i < argc; i++) {
942 #define SETFLAG(s, f) \
944 if (strcmp(cp, (s)) == 0) {\
952 * XXX: this macro is not 100% correct, in that it matches "nud" against
953 * "nudbogus". But we just let it go since this is minor.
955 #define SETVALUE(f, v) \
958 unsigned long newval; \
959 v = 0; /* unspecified */ \
960 if (strncmp(cp, f, strlen(f)) == 0) { \
961 valptr = strchr(cp, '='); \
962 if (valptr == NULL) \
963 err(1, "syntax error in %s field", (f)); \
965 newval = strtoul(++valptr, NULL, 0); \
967 err(1, "syntax error in %s's value", (f)); \
972 SETFLAG("disabled", ND6_IFF_IFDISABLED);
973 SETFLAG("nud", ND6_IFF_PERFORMNUD);
974 #ifdef ND6_IFF_ACCEPT_RTADV
975 SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
977 #ifdef ND6_IFF_AUTO_LINKLOCAL
978 SETFLAG("auto_linklocal", ND6_IFF_AUTO_LINKLOCAL);
980 #ifdef ND6_IFF_NO_PREFER_IFACE
981 SETFLAG("no_prefer_iface", ND6_IFF_NO_PREFER_IFACE);
983 SETVALUE("basereachable", ND.basereachable);
984 SETVALUE("retrans", ND.retrans);
985 SETVALUE("curhlim", ND.chlim);
988 if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd) < 0) {
989 err(1, "ioctl(SIOCSIFINFO_IN6)");
996 if (!ND.initialized) {
997 errx(1, "%s: not initialized yet", ifname);
1001 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
1002 err(1, "ioctl(SIOCGIFINFO_IN6)");
1005 printf("linkmtu=%d", ND.linkmtu);
1006 printf(", maxmtu=%d", ND.maxmtu);
1007 printf(", curhlim=%d", ND.chlim);
1008 printf(", basereachable=%ds%dms",
1009 ND.basereachable / 1000, ND.basereachable % 1000);
1010 printf(", reachable=%ds", ND.reachable);
1011 printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
1012 #ifdef IPV6CTL_USETEMPADDR
1013 memset(nullbuf, 0, sizeof(nullbuf));
1014 if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) {
1018 for (i = 0; i < 3; i++) {
1021 printf("\nRandom seed(0): ");
1022 rbuf = ND.randomseed0;
1025 printf("\nRandom seed(1): ");
1026 rbuf = ND.randomseed1;
1029 printf("\nRandom ID: ");
1033 errx(1, "impossible case for tempaddr display");
1035 for (j = 0; j < 8; j++)
1036 printf("%02x", rbuf[j]);
1041 printf("\nFlags: ");
1042 #ifdef ND6_IFF_IFDISABLED
1043 if ((ND.flags & ND6_IFF_IFDISABLED))
1044 printf("disabled ");
1046 if ((ND.flags & ND6_IFF_PERFORMNUD))
1048 #ifdef ND6_IFF_ACCEPT_RTADV
1049 if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
1050 printf("accept_rtadv ");
1052 #ifdef ND6_IFF_AUTO_LINKLOCAL
1053 if ((ND.flags & ND6_IFF_AUTO_LINKLOCAL))
1054 printf("auto_linklocal ");
1056 #ifdef ND6_IFF_NO_PREFER_IFACE
1057 if ((ND.flags & ND6_IFF_NO_PREFER_IFACE))
1058 printf("no_prefer_iface ");
1067 #ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */
1068 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
1074 #ifdef ICMPV6CTL_ND6_DRLIST
1075 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
1077 struct in6_defrouter *p, *ep;
1081 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1082 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1092 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1093 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1097 ep = (struct in6_defrouter *)(buf + l);
1098 for (p = (struct in6_defrouter *)buf; p < ep; p++) {
1101 if (getnameinfo((struct sockaddr *)&p->rtaddr,
1102 p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0,
1103 (nflag ? NI_NUMERICHOST : 0)) != 0)
1104 strlcpy(host_buf, "?", sizeof(host_buf));
1106 printf("%s if=%s", host_buf,
1107 if_indextoname(p->if_index, ifix_buf));
1108 printf(", flags=%s%s",
1109 p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
1110 p->flags & ND_RA_FLAG_OTHER ? "O" : "");
1111 rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
1112 printf(", pref=%s", rtpref_str[rtpref]);
1114 gettimeofday(&now, 0);
1116 printf(", expire=Never\n");
1118 printf(", expire=%s\n",
1119 sec2str(p->expire - now.tv_sec));
1123 struct in6_drlist dr;
1127 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1131 bzero(&dr, sizeof(dr));
1132 strlcpy(dr.ifname, "lo0", sizeof(dr.ifname)); /* dummy */
1133 if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
1134 err(1, "ioctl(SIOCGDRLST_IN6)");
1137 #define DR dr.defrouter[i]
1138 for (i = 0 ; DR.if_index && i < DRLSTSIZ ; i++) {
1139 struct sockaddr_in6 sin6;
1141 bzero(&sin6, sizeof(sin6));
1142 sin6.sin6_family = AF_INET6;
1143 sin6.sin6_len = sizeof(sin6);
1144 sin6.sin6_addr = DR.rtaddr;
1145 getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, host_buf,
1146 sizeof(host_buf), NULL, 0,
1147 (nflag ? NI_NUMERICHOST : 0));
1149 printf("%s if=%s", host_buf,
1150 if_indextoname(DR.if_index, ifix_buf));
1151 printf(", flags=%s%s",
1152 DR.flags & ND_RA_FLAG_MANAGED ? "M" : "",
1153 DR.flags & ND_RA_FLAG_OTHER ? "O" : "");
1154 gettimeofday(&now, 0);
1156 printf(", expire=Never\n");
1158 printf(", expire=%s\n",
1159 sec2str(DR.expire - now.tv_sec));
1169 #ifdef ICMPV6CTL_ND6_PRLIST
1170 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
1172 struct in6_prefix *p, *ep, *n;
1173 struct sockaddr_in6 *advrtr;
1176 const int niflags = NI_NUMERICHOST;
1177 int ninflags = nflag ? NI_NUMERICHOST : 0;
1178 char namebuf[NI_MAXHOST];
1180 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1181 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1189 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1190 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1194 ep = (struct in6_prefix *)(buf + l);
1195 for (p = (struct in6_prefix *)buf; p < ep; p = n) {
1196 advrtr = (struct sockaddr_in6 *)(p + 1);
1197 n = (struct in6_prefix *)&advrtr[p->advrtrs];
1199 if (getnameinfo((struct sockaddr *)&p->prefix,
1200 p->prefix.sin6_len, namebuf, sizeof(namebuf),
1201 NULL, 0, niflags) != 0)
1202 strlcpy(namebuf, "?", sizeof(namebuf));
1203 printf("%s/%d if=%s\n", namebuf, p->prefixlen,
1204 if_indextoname(p->if_index, ifix_buf));
1206 gettimeofday(&now, 0);
1208 * meaning of fields, especially flags, is very different
1209 * by origin. notify the difference to the users.
1211 printf("flags=%s%s%s%s%s",
1212 p->raflags.onlink ? "L" : "",
1213 p->raflags.autonomous ? "A" : "",
1214 (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
1215 (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
1217 (p->flags & NDPRF_HOME) != 0 ? "H" : ""
1222 if (p->vltime == ND6_INFINITE_LIFETIME)
1223 printf(" vltime=infinity");
1225 printf(" vltime=%lu", (unsigned long)p->vltime);
1226 if (p->pltime == ND6_INFINITE_LIFETIME)
1227 printf(", pltime=infinity");
1229 printf(", pltime=%lu", (unsigned long)p->pltime);
1231 printf(", expire=Never");
1232 else if (p->expire >= now.tv_sec)
1233 printf(", expire=%s",
1234 sec2str(p->expire - now.tv_sec));
1236 printf(", expired");
1237 printf(", ref=%d", p->refcnt);
1240 * "advertising router" list is meaningful only if the prefix
1241 * information is from RA.
1245 struct sockaddr_in6 *sin6;
1248 printf(" advertised by\n");
1249 for (j = 0; j < p->advrtrs; j++) {
1250 struct in6_nbrinfo *nbi;
1252 if (getnameinfo((struct sockaddr *)sin6,
1253 sin6->sin6_len, namebuf, sizeof(namebuf),
1254 NULL, 0, ninflags) != 0)
1255 strlcpy(namebuf, "?", sizeof(namebuf));
1256 printf(" %s", namebuf);
1258 nbi = getnbrinfo(&sin6->sin6_addr,
1261 switch (nbi->state) {
1262 case ND6_LLINFO_REACHABLE:
1263 case ND6_LLINFO_STALE:
1264 case ND6_LLINFO_DELAY:
1265 case ND6_LLINFO_PROBE:
1266 printf(" (reachable)\n");
1269 printf(" (unreachable)\n");
1272 printf(" (no neighbor state)\n");
1276 printf(" No advertising router\n");
1280 struct in6_prlist pr;
1284 gettimeofday(&now, 0);
1286 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1290 bzero(&pr, sizeof(pr));
1291 strlcpy(pr.ifname, "lo0", sizeof(pr.ifname)); /* dummy */
1292 if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
1293 err(1, "ioctl(SIOCGPRLST_IN6)");
1296 #define PR pr.prefix[i]
1297 for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) {
1298 struct sockaddr_in6 p6;
1299 char namebuf[NI_MAXHOST];
1305 memset(&p6, 0, sizeof(p6));
1306 p6.sin6_family = AF_INET6;
1307 p6.sin6_len = sizeof(p6);
1308 p6.sin6_addr = PR.prefix;
1310 niflags = NI_NUMERICHOST;
1311 if (getnameinfo((struct sockaddr *)&p6,
1312 sizeof(p6), namebuf, sizeof(namebuf),
1313 NULL, 0, niflags)) {
1314 warnx("getnameinfo failed");
1317 printf("%s/%d if=%s\n", namebuf, PR.prefixlen,
1318 if_indextoname(PR.if_index, ifix_buf));
1320 gettimeofday(&now, 0);
1322 * meaning of fields, especially flags, is very different
1323 * by origin. notify the difference to the users.
1327 PR.origin == PR_ORIG_RA ? "" : "advertise: ");
1330 printf("flags=%s%s%s%s%s",
1331 PR.raflags.onlink ? "L" : "",
1332 PR.raflags.autonomous ? "A" : "",
1333 (PR.flags & NDPRF_ONLINK) != 0 ? "O" : "",
1334 (PR.flags & NDPRF_DETACHED) != 0 ? "D" : "",
1336 (PR.flags & NDPRF_HOME) != 0 ? "H" : ""
1342 printf("flags=%s%s",
1343 PR.raflags.onlink ? "L" : "",
1344 PR.raflags.autonomous ? "A" : "");
1346 if (PR.vltime == ND6_INFINITE_LIFETIME)
1347 printf(" vltime=infinity");
1349 printf(" vltime=%lu", PR.vltime);
1350 if (PR.pltime == ND6_INFINITE_LIFETIME)
1351 printf(", pltime=infinity");
1353 printf(", pltime=%lu", PR.pltime);
1355 printf(", expire=Never");
1356 else if (PR.expire >= now.tv_sec)
1357 printf(", expire=%s",
1358 sec2str(PR.expire - now.tv_sec));
1360 printf(", expired");
1362 printf(", ref=%d", PR.refcnt);
1365 switch (PR.origin) {
1367 printf(", origin=RA");
1370 printf(", origin=RR");
1372 case PR_ORIG_STATIC:
1373 printf(", origin=static");
1375 case PR_ORIG_KERNEL:
1376 printf(", origin=kernel");
1379 printf(", origin=?");
1385 * "advertising router" list is meaningful only if the prefix
1386 * information is from RA.
1388 if (0 && /* prefix origin is almost obsolted */
1389 PR.origin != PR_ORIG_RA)
1391 else if (PR.advrtrs) {
1393 printf(" advertised by\n");
1394 for (j = 0; j < PR.advrtrs; j++) {
1395 struct sockaddr_in6 sin6;
1396 struct in6_nbrinfo *nbi;
1398 bzero(&sin6, sizeof(sin6));
1399 sin6.sin6_family = AF_INET6;
1400 sin6.sin6_len = sizeof(sin6);
1401 sin6.sin6_addr = PR.advrtr[j];
1402 sin6.sin6_scope_id = PR.if_index; /* XXX */
1403 getnameinfo((struct sockaddr *)&sin6,
1404 sin6.sin6_len, host_buf,
1405 sizeof(host_buf), NULL, 0,
1406 (nflag ? NI_NUMERICHOST : 0));
1407 printf(" %s", host_buf);
1409 nbi = getnbrinfo(&sin6.sin6_addr,
1412 switch (nbi->state) {
1413 case ND6_LLINFO_REACHABLE:
1414 case ND6_LLINFO_STALE:
1415 case ND6_LLINFO_DELAY:
1416 case ND6_LLINFO_PROBE:
1417 printf(" (reachable)\n");
1420 printf(" (unreachable)\n");
1423 printf(" (no neighbor state)\n");
1425 if (PR.advrtrs > DRLSTSIZ)
1426 printf(" and %d routers\n",
1427 PR.advrtrs - DRLSTSIZ);
1429 printf(" No advertising router\n");
1439 char dummyif[IFNAMSIZ+8];
1442 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1444 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1445 if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
1446 err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
1452 char dummyif[IFNAMSIZ+8];
1455 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1457 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1458 if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
1459 err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
1467 char dummyif[IFNAMSIZ+8];
1470 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1472 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1473 if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
1474 err(1, "ioctl(SIOCSNDFLUSH_IN6)");
1479 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
1484 struct in6_ndifreq ndifreq;
1485 unsigned int ifindex;
1487 if (strcasecmp(ifname, "delete") == 0)
1490 if ((ifindex = if_nametoindex(ifname)) == 0)
1491 err(1, "failed to resolve i/f index for %s", ifname);
1494 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1497 strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
1498 ndifreq.ifindex = ifindex;
1500 if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1501 err(1, "ioctl(SIOCSDEFIFACE_IN6)");
1509 struct in6_ndifreq ndifreq;
1510 char ifname[IFNAMSIZ+8];
1512 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1515 memset(&ndifreq, 0, sizeof(ndifreq));
1516 strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
1518 if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1519 err(1, "ioctl(SIOCGDEFIFACE_IN6)");
1521 if (ndifreq.ifindex == 0)
1522 printf("No default interface.\n");
1524 if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL)
1525 err(1, "failed to resolve ifname for index %lu",
1527 printf("ND default interface = %s\n", ifname);
1538 static char result[256];
1539 int days, hours, mins, secs;
1542 char *ep = &result[sizeof(result)];
1545 days = total / 3600 / 24;
1546 hours = (total / 3600) % 24;
1547 mins = (total / 60) % 60;
1552 n = snprintf(p, ep - p, "%dd", days);
1553 if (n < 0 || n >= ep - p)
1557 if (!first || hours) {
1559 n = snprintf(p, ep - p, "%dh", hours);
1560 if (n < 0 || n >= ep - p)
1564 if (!first || mins) {
1566 n = snprintf(p, ep - p, "%dm", mins);
1567 if (n < 0 || n >= ep - p)
1571 snprintf(p, ep - p, "%ds", secs);
1577 * Print the timestamp
1578 * from tcpdump/util.c
1582 const struct timeval *tvp;
1587 s = (tvp->tv_sec + thiszone) % 86400;
1588 (void)printf("%02d:%02d:%02d.%06u ",
1589 s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);