1 /* $FreeBSD: src/usr.sbin/ndp/ndp.c,v 1.2.2.6 2003/08/12 16:27:57 ume Exp $ */
2 /* $KAME: ndp.c,v 1.65 2001/05/08 04:36:34 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 * 3. 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 #ifndef NI_WITHSCOPEID
113 #define NI_WITHSCOPEID 0
120 static int32_t thiszone; /* time difference with gmt */
122 static int repeat = 0;
124 char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
125 char host_buf[NI_MAXHOST]; /* getnameinfo() */
126 char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
129 void getsocket(void);
130 int set(int, char **);
133 void dump(struct in6_addr *);
134 static struct in6_nbrinfo *getnbrinfo(struct in6_addr *addr,
136 static char *ether_str(struct sockaddr_dl *);
137 int ndp_ether_aton(char *, u_char *);
140 void ifinfo(int, char **);
143 void pfx_flush(void);
145 void rtr_flush(void);
146 void harmonize_rtr(void);
147 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
148 static void getdefif(void);
149 static void setdefif(char *);
151 static char *sec2str(time_t t);
152 static char *ether_str(struct sockaddr_dl *sdl);
153 static void ts_print(const struct timeval *);
155 static char *rtpref_str[] = {
163 main(int argc, char **argv)
166 int aflag = 0, dflag = 0, sflag = 0, Hflag = 0,
167 pflag = 0, rflag = 0, Pflag = 0, Rflag = 0;
170 thiszone = gmt2local(0);
171 while ((ch = getopt(argc, argv, "acndfIilprstA:HPR")) != -1)
183 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
186 getdefif(); /* always call it to print the result */
189 errx(1, "not supported yet");
211 /* obsolete, ignored */
224 repeat = atoi(optarg);
244 if (aflag || cflag) {
263 if (argc < 2 || argc > 4)
265 exit(set(argc, argv) ? 1 : 0);
287 * Process a file to set standard ndp entries
294 char line[100], arg[5][50], *args[5];
296 if ((fp = fopen(name, "r")) == NULL) {
297 fprintf(stderr, "ndp: cannot open %s\n", name);
300 args[0] = &arg[0][0];
301 args[1] = &arg[1][0];
302 args[2] = &arg[2][0];
303 args[3] = &arg[3][0];
304 args[4] = &arg[4][0];
306 while(fgets(line, 100, fp) != NULL) {
307 i = sscanf(line, "%s %s %s %s %s", arg[0], arg[1], arg[2],
310 fprintf(stderr, "ndp: bad line: %s\n", line);
325 s = socket(PF_ROUTE, SOCK_RAW, 0);
327 perror("ndp: socket");
333 struct sockaddr_in6 so_mask = {sizeof(so_mask), AF_INET6 };
334 struct sockaddr_in6 blank_sin = {sizeof(blank_sin), AF_INET6 }, sin_m;
335 struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m;
336 int flags, found_entry;
339 struct rt_msghdr m_rtm;
344 * Set an individual neighbor cache entry
347 set(int argc, char **argv)
349 struct sockaddr_in6 *sin = &sin_m;
350 struct sockaddr_dl *sdl;
351 struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
352 struct addrinfo hints, *res;
355 char *host = argv[0], *eaddr = argv[1];
363 bzero(&hints, sizeof(hints));
364 hints.ai_family = AF_INET6;
365 gai_error = getaddrinfo(host, NULL, &hints, &res);
367 fprintf(stderr, "ndp: %s: %s\n", host,
368 gai_strerror(gai_error));
371 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
373 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
374 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
375 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
378 ea = (u_char *)LLADDR(&sdl_m);
379 if (ndp_ether_aton(eaddr, ea) == 0)
384 if (strncmp(argv[0], "temp", 4) == 0) {
387 clock_gettime(CLOCK_MONOTONIC, &sp);
388 expire_time = sp.tv_sec + 20 * 60;
389 } else if (strncmp(argv[0], "proxy", 5) == 0)
390 flags |= RTF_ANNOUNCE;
393 if (rtmsg(RTM_GET) < 0) {
397 sin = (struct sockaddr_in6 *)(rtm + 1);
398 sdl = (struct sockaddr_dl *)(RT_ROUNDUP(sin->sin6_len) + (char *)sin);
399 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
400 if (sdl->sdl_family == AF_LINK &&
401 (rtm->rtm_flags & RTF_LLINFO) &&
402 !(rtm->rtm_flags & RTF_GATEWAY)) switch (sdl->sdl_type) {
403 case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
404 case IFT_ISO88024: case IFT_ISO88025:
408 * IPv4 arp command retries with sin_other = SIN_PROXY here.
410 fprintf(stderr, "set: cannot configure a new entry\n");
415 if (sdl->sdl_family != AF_LINK) {
416 printf("cannot intuit interface index and type for %s\n", host);
419 sdl_m.sdl_type = sdl->sdl_type;
420 sdl_m.sdl_index = sdl->sdl_index;
421 return (rtmsg(RTM_ADD));
425 * Display an individual neighbor cache entry
430 struct sockaddr_in6 *sin = &sin_m;
431 struct addrinfo hints, *res;
435 bzero(&hints, sizeof(hints));
436 hints.ai_family = AF_INET6;
437 gai_error = getaddrinfo(host, NULL, &hints, &res);
439 fprintf(stderr, "ndp: %s: %s\n", host,
440 gai_strerror(gai_error));
443 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
445 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
446 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
447 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
450 dump(&sin->sin6_addr);
451 if (found_entry == 0) {
452 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
453 sizeof(host_buf), NULL ,0,
454 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
455 printf("%s (%s) -- no entry\n", host, host_buf);
461 * Delete a neighbor cache entry
466 struct sockaddr_in6 *sin = &sin_m;
467 struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
468 struct sockaddr_dl *sdl;
469 struct addrinfo hints, *res;
475 bzero(&hints, sizeof(hints));
476 hints.ai_family = AF_INET6;
477 gai_error = getaddrinfo(host, NULL, &hints, &res);
479 fprintf(stderr, "ndp: %s: %s\n", host,
480 gai_strerror(gai_error));
483 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
485 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
486 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
487 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
490 if (rtmsg(RTM_GET) < 0) {
494 sin = (struct sockaddr_in6 *)(rtm + 1);
495 sdl = (struct sockaddr_dl *)(RT_ROUNDUP(sin->sin6_len) + (char *)sin);
496 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
497 if (sdl->sdl_family == AF_LINK &&
498 (rtm->rtm_flags & RTF_LLINFO) &&
499 !(rtm->rtm_flags & RTF_GATEWAY)) {
503 * IPv4 arp command retries with sin_other = SIN_PROXY here.
505 fprintf(stderr, "delete: cannot delete non-NDP entry\n");
510 if (sdl->sdl_family != AF_LINK) {
511 printf("cannot locate %s\n", host);
514 if (rtmsg(RTM_DELETE) == 0) {
515 struct sockaddr_in6 s6 = *sin; /* XXX: for safety */
518 if (IN6_IS_ADDR_LINKLOCAL(&s6.sin6_addr)) {
519 s6.sin6_scope_id = ntohs(*(u_int16_t *)&s6.sin6_addr.s6_addr[2]);
520 *(u_int16_t *)&s6.sin6_addr.s6_addr[2] = 0;
523 getnameinfo((struct sockaddr *)&s6,
524 s6.sin6_len, host_buf,
525 sizeof(host_buf), NULL, 0,
526 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
527 printf("%s (%s) deleted\n", host, host_buf);
538 * Dump the entire neighbor cache
541 dump(struct in6_addr *addr)
545 char *lim, *buf, *next;
546 struct rt_msghdr *rtm;
547 struct sockaddr_in6 *sin;
548 struct sockaddr_dl *sdl;
550 struct in6_nbrinfo *nbi;
559 if (!tflag && !cflag)
560 printf("%-*.*s %-*.*s %*.*s %-9.9s %2s %4s %4s\n",
561 W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
562 W_IF, W_IF, "Netif", "Expire", "St", "Flgs", "Prbs");
569 mib[4] = NET_RT_FLAGS;
571 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
572 err(1, "sysctl(PF_ROUTE estimate)");
574 if ((buf = malloc(needed)) == NULL)
576 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
577 err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)");
582 for (next = buf; next && next < lim; next += rtm->rtm_msglen) {
583 int isrouter = 0, prbs = 0;
585 rtm = (struct rt_msghdr *)next;
586 sin = (struct sockaddr_in6 *)(rtm + 1);
587 sdl = (struct sockaddr_dl *)((char *)sin +
588 RT_ROUNDUP(sin->sin6_len));
591 * Some OSes can produce a route that has the LINK flag but
592 * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD
593 * and BSD/OS, where xx is not the interface identifier on
594 * lo0). Such routes entry would annoy getnbrinfo() below,
596 * XXX: such routes should have the GATEWAY flag, not the
597 * LINK flag. However, there are rotten routing software
598 * that advertises all routes that have the GATEWAY flag.
599 * Thus, KAME kernel intentionally does not set the LINK flag.
600 * What is to be fixed is not ndp, but such routing software
601 * (and the kernel workaround)...
603 if (sdl->sdl_family != AF_LINK)
607 if (!IN6_ARE_ADDR_EQUAL(addr, &sin->sin6_addr))
610 } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
612 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) ||
613 IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) {
614 /* XXX: should scope id be filled in the kernel? */
615 if (sin->sin6_scope_id == 0)
616 sin->sin6_scope_id = sdl->sdl_index;
618 /* KAME specific hack; removed the embedded id */
619 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = 0;
622 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
623 sizeof(host_buf), NULL, 0,
624 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
627 if (rtm->rtm_flags & RTF_WASCLONED)
634 gettimeofday(&time, 0);
638 addrwidth = strlen(host_buf);
639 if (addrwidth < W_ADDR)
641 llwidth = strlen(ether_str(sdl));
642 if (W_ADDR + W_LL - addrwidth > llwidth)
643 llwidth = W_ADDR + W_LL - addrwidth;
644 ifname = if_indextoname(sdl->sdl_index, ifix_buf);
647 ifwidth = strlen(ifname);
648 if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth)
649 ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth;
651 printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf,
652 llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname);
654 /* Print neighbor discovery specific informations */
655 nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1);
657 if (nbi->expire > time.tv_sec) {
659 sec2str(nbi->expire - time.tv_sec));
660 } else if (nbi->expire == 0)
661 printf(" %-9.9s", "permanent");
663 printf(" %-9.9s", "expired");
666 case ND6_LLINFO_NOSTATE:
669 #ifdef ND6_LLINFO_WAITDELETE
670 case ND6_LLINFO_WAITDELETE:
674 case ND6_LLINFO_INCOMPLETE:
677 case ND6_LLINFO_REACHABLE:
680 case ND6_LLINFO_STALE:
683 case ND6_LLINFO_DELAY:
686 case ND6_LLINFO_PROBE:
694 isrouter = nbi->isrouter;
697 warnx("failed to get neighbor information");
703 * other flags. R: router, P: proxy, W: ??
705 if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
706 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
708 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
710 sin = (struct sockaddr_in6 *)
711 (sdl->sdl_len + (char *)sdl);
712 snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s",
714 !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr)
716 (sin->sin6_len != sizeof(struct sockaddr_in6))
718 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
720 printf(" %-4.4s", flgbuf);
723 printf(" %4d", prbs);
737 static struct in6_nbrinfo *
738 getnbrinfo(struct in6_addr *addr, int ifindex, int warning)
740 static struct in6_nbrinfo nbi;
743 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
746 bzero(&nbi, sizeof(nbi));
747 if_indextoname(ifindex, nbi.ifname);
749 if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
751 warn("ioctl(SIOCGNBRINFO_IN6)");
761 ether_str(struct sockaddr_dl *sdl)
763 static char ebuf[32];
767 cp = (u_char *)LLADDR(sdl);
768 sprintf(ebuf, "%x:%x:%x:%x:%x:%x",
769 cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
771 sprintf(ebuf, "(incomplete)");
778 ndp_ether_aton(char *a, u_char *n)
782 i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2],
783 &o[3], &o[4], &o[5]);
785 fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a);
796 printf("usage: ndp hostname\n");
797 printf(" ndp -a[nt]\n");
798 printf(" ndp [-nt] -A wait\n");
799 printf(" ndp -c[nt]\n");
800 printf(" ndp -d[nt] hostname\n");
801 printf(" ndp -f[nt] filename\n");
802 printf(" ndp -i interface [flags...]\n");
803 #ifdef SIOCSDEFIFACE_IN6
804 printf(" ndp -I [interface|delete]\n");
808 printf(" ndp -s hostname ether_addr [temp] [proxy]\n");
820 struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
821 char *cp = m_rtmsg.m_space;
825 if (cmd == RTM_DELETE)
827 bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
828 rtm->rtm_flags = flags;
829 rtm->rtm_version = RTM_VERSION;
833 fprintf(stderr, "ndp: internal wrong cmd\n");
836 rtm->rtm_addrs |= RTA_GATEWAY;
837 rtm->rtm_rmx.rmx_expire = expire_time;
838 rtm->rtm_inits = RTV_EXPIRE;
839 rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
840 if (rtm->rtm_flags & RTF_ANNOUNCE) {
841 rtm->rtm_flags &= ~RTF_HOST;
842 rtm->rtm_flags |= RTA_NETMASK;
846 rtm->rtm_addrs |= RTA_DST;
848 #define NEXTADDR(w, s) \
849 if (rtm->rtm_addrs & (w)) { \
850 bcopy((char *)&s, cp, sizeof(s)); cp += sizeof(s);}
852 NEXTADDR(RTA_DST, sin_m);
853 NEXTADDR(RTA_GATEWAY, sdl_m);
854 memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
855 NEXTADDR(RTA_NETMASK, so_mask);
857 rtm->rtm_msglen = cp - (char *)&m_rtmsg;
860 rtm->rtm_seq = ++seq;
862 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
863 if (errno != ESRCH || cmd != RTM_DELETE) {
864 perror("writing to routing socket");
869 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
870 } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
872 fprintf(stderr, "ndp: read from routing socket: %s\n",
878 ifinfo(int argc, char **argv)
880 struct in6_ndireq nd;
882 char *ifname = argv[0];
884 #ifdef IPV6CTL_USETEMPADDR
888 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
889 perror("ndp: socket");
892 bzero(&nd, sizeof(nd));
893 strcpy(nd.ifname, ifname);
894 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
895 perror("ioctl (SIOCGIFINFO_IN6)");
900 for (i = 1; i < argc; i++) {
909 #define SETFLAG(s, f) \
911 if (strcmp(cp, (s)) == 0) {\
918 SETFLAG("nud", ND6_IFF_PERFORMNUD);
919 #ifdef ND6_IFF_ACCEPT_RTADV
920 SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
923 if (ioctl(s, SIOCSIFINFO_FLAGS, (caddr_t)&nd) < 0) {
924 perror("ioctl(SIOCSIFINFO_FLAGS)");
930 printf("linkmtu=%d", ND.linkmtu);
931 printf(", curhlim=%d", ND.chlim);
932 printf(", basereachable=%ds%dms",
933 ND.basereachable / 1000, ND.basereachable % 1000);
934 printf(", reachable=%ds", ND.reachable);
935 printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
936 #ifdef IPV6CTL_USETEMPADDR
937 memset(nullbuf, 0, sizeof(nullbuf));
938 if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) {
942 for (i = 0; i < 3; i++) {
945 printf("\nRandom seed(0): ");
946 rbuf = ND.randomseed0;
949 printf("\nRandom seed(1): ");
950 rbuf = ND.randomseed1;
953 printf("\nRandom ID: ");
957 for (j = 0; j < 8; j++)
958 printf("%02x", rbuf[j]);
964 if ((ND.flags & ND6_IFF_PERFORMNUD))
966 #ifdef ND6_IFF_ACCEPT_RTADV
967 if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
968 printf("accept_rtadv ");
977 #ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */
978 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
984 #ifdef ICMPV6CTL_ND6_DRLIST
985 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
987 struct in6_defrouter *p, *ep;
991 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
992 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
997 errx(1, "not enough core");
1000 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1001 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1005 ep = (struct in6_defrouter *)(buf + l);
1006 for (p = (struct in6_defrouter *)buf; p < ep; p++) {
1009 if (getnameinfo((struct sockaddr *)&p->rtaddr,
1010 p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0,
1011 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0)) != 0)
1012 strlcpy(host_buf, "?", sizeof(host_buf));
1014 printf("%s if=%s", host_buf,
1015 if_indextoname(p->if_index, ifix_buf));
1016 printf(", flags=%s%s",
1017 p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
1018 p->flags & ND_RA_FLAG_OTHER ? "O" : "");
1019 rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
1020 printf(", pref=%s", rtpref_str[rtpref]);
1022 gettimeofday(&time, 0);
1024 printf(", expire=Never\n");
1026 printf(", expire=%s\n",
1027 sec2str(p->expire - time.tv_sec));
1031 struct in6_drlist dr;
1033 struct timeval time;
1035 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1036 perror("ndp: socket");
1039 bzero(&dr, sizeof(dr));
1040 strcpy(dr.ifname, "lo0"); /* dummy */
1041 if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
1042 perror("ioctl (SIOCGDRLST_IN6)");
1045 #define DR dr.defrouter[i]
1046 for (i = 0 ; DR.if_index && i < DRLSTSIZ ; i++) {
1047 struct sockaddr_in6 sin6;
1049 bzero(&sin6, sizeof(sin6));
1050 sin6.sin6_family = AF_INET6;
1051 sin6.sin6_len = sizeof(sin6);
1052 sin6.sin6_addr = DR.rtaddr;
1053 getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, host_buf,
1054 sizeof(host_buf), NULL, 0,
1055 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
1057 printf("%s if=%s", host_buf,
1058 if_indextoname(DR.if_index, ifix_buf));
1059 printf(", flags=%s%s",
1060 DR.flags & ND_RA_FLAG_MANAGED ? "M" : "",
1061 DR.flags & ND_RA_FLAG_OTHER ? "O" : "");
1062 gettimeofday(&time, 0);
1064 printf(", expire=Never\n");
1066 printf(", expire=%s\n",
1067 sec2str(DR.expire - time.tv_sec));
1077 #ifdef ICMPV6CTL_ND6_PRLIST
1078 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
1080 struct in6_prefix *p, *ep, *n;
1081 struct sockaddr_in6 *advrtr;
1083 struct timeval time;
1084 #ifdef NI_WITHSCOPEID
1085 const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
1086 int ninflags = (nflag ? NI_NUMERICHOST : 0) | NI_WITHSCOPEID;
1088 const int niflags = NI_NUMERICHOST;
1089 int ninflags = nflag ? NI_NUMERICHOST : 0;
1091 char namebuf[NI_MAXHOST];
1093 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1094 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1099 errx(1, "not enough core");
1102 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1103 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1107 ep = (struct in6_prefix *)(buf + l);
1108 for (p = (struct in6_prefix *)buf; p < ep; p = n) {
1109 advrtr = (struct sockaddr_in6 *)(p + 1);
1110 n = (struct in6_prefix *)&advrtr[p->advrtrs];
1112 if (getnameinfo((struct sockaddr *)&p->prefix,
1113 p->prefix.sin6_len, namebuf, sizeof(namebuf),
1114 NULL, 0, niflags) != 0)
1115 strlcpy(namebuf, "?", sizeof(namebuf));
1116 printf("%s/%d if=%s\n", namebuf, p->prefixlen,
1117 if_indextoname(p->if_index, ifix_buf));
1119 gettimeofday(&time, 0);
1121 * meaning of fields, especially flags, is very different
1122 * by origin. notify the difference to the users.
1124 printf("flags=%s%s%s%s%s",
1125 p->raflags.onlink ? "L" : "",
1126 p->raflags.autonomous ? "A" : "",
1127 (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
1128 (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
1130 (p->flags & NDPRF_HOME) != 0 ? "H" : ""
1135 if (p->vltime == ND6_INFINITE_LIFETIME)
1136 printf(" vltime=infinity");
1138 printf(" vltime=%ld", (long)p->vltime);
1139 if (p->pltime == ND6_INFINITE_LIFETIME)
1140 printf(", pltime=infinity");
1142 printf(", pltime=%ld", (long)p->pltime);
1144 printf(", expire=Never");
1145 else if (p->expire >= time.tv_sec)
1146 printf(", expire=%s",
1147 sec2str(p->expire - time.tv_sec));
1149 printf(", expired");
1150 printf(", ref=%d", p->refcnt);
1153 * "advertising router" list is meaningful only if the prefix
1154 * information is from RA.
1158 struct sockaddr_in6 *sin6;
1160 sin6 = (struct sockaddr_in6 *)(p + 1);
1161 printf(" advertised by\n");
1162 for (j = 0; j < p->advrtrs; j++) {
1163 struct in6_nbrinfo *nbi;
1165 if (getnameinfo((struct sockaddr *)sin6,
1166 sin6->sin6_len, namebuf, sizeof(namebuf),
1167 NULL, 0, ninflags) != 0)
1168 strlcpy(namebuf, "?", sizeof(namebuf));
1169 printf(" %s", namebuf);
1171 nbi = getnbrinfo(&sin6->sin6_addr, p->if_index,
1174 switch(nbi->state) {
1175 case ND6_LLINFO_REACHABLE:
1176 case ND6_LLINFO_STALE:
1177 case ND6_LLINFO_DELAY:
1178 case ND6_LLINFO_PROBE:
1179 printf(" (reachable)\n");
1182 printf(" (unreachable)\n");
1185 printf(" (no neighbor state)\n");
1189 printf(" No advertising router\n");
1193 struct in6_prlist pr;
1195 struct timeval time;
1197 gettimeofday(&time, 0);
1199 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1200 perror("ndp: socket");
1203 bzero(&pr, sizeof(pr));
1204 strcpy(pr.ifname, "lo0"); /* dummy */
1205 if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
1206 perror("ioctl (SIOCGPRLST_IN6)");
1209 #define PR pr.prefix[i]
1210 for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) {
1211 struct sockaddr_in6 p6;
1212 char namebuf[NI_MAXHOST];
1218 memset(&p6, 0, sizeof(p6));
1219 p6.sin6_family = AF_INET6;
1220 p6.sin6_len = sizeof(p6);
1221 p6.sin6_addr = PR.prefix;
1225 * copy link index to sin6_scope_id field.
1226 * XXX: KAME specific.
1228 if (IN6_IS_ADDR_LINKLOCAL(&p6.sin6_addr)) {
1231 memcpy(&linkid, &p6.sin6_addr.s6_addr[2],
1233 linkid = ntohs(linkid);
1234 p6.sin6_scope_id = linkid;
1235 p6.sin6_addr.s6_addr[2] = 0;
1236 p6.sin6_addr.s6_addr[3] = 0;
1239 niflags = NI_NUMERICHOST;
1241 niflags |= NI_WITHSCOPEID;
1243 if (getnameinfo((struct sockaddr *)&p6,
1244 sizeof(p6), namebuf, sizeof(namebuf),
1245 NULL, 0, niflags)) {
1246 warnx("getnameinfo failed");
1249 printf("%s/%d if=%s\n", namebuf, PR.prefixlen,
1250 if_indextoname(PR.if_index, ifix_buf));
1252 gettimeofday(&time, 0);
1254 * meaning of fields, especially flags, is very different
1255 * by origin. notify the difference to the users.
1259 PR.origin == PR_ORIG_RA ? "" : "advertise: ");
1262 printf("flags=%s%s%s%s%s",
1263 PR.raflags.onlink ? "L" : "",
1264 PR.raflags.autonomous ? "A" : "",
1265 (PR.flags & NDPRF_ONLINK) != 0 ? "O" : "",
1266 (PR.flags & NDPRF_DETACHED) != 0 ? "D" : "",
1268 (PR.flags & NDPRF_HOME) != 0 ? "H" : ""
1274 printf("flags=%s%s",
1275 PR.raflags.onlink ? "L" : "",
1276 PR.raflags.autonomous ? "A" : "");
1278 if (PR.vltime == ND6_INFINITE_LIFETIME)
1279 printf(" vltime=infinity");
1281 printf(" vltime=%ld", (long)PR.vltime);
1282 if (PR.pltime == ND6_INFINITE_LIFETIME)
1283 printf(", pltime=infinity");
1285 printf(", pltime=%ld", (long)PR.pltime);
1287 printf(", expire=Never");
1288 else if (PR.expire >= time.tv_sec)
1289 printf(", expire=%s",
1290 sec2str(PR.expire - time.tv_sec));
1292 printf(", expired");
1294 printf(", ref=%d", PR.refcnt);
1297 switch (PR.origin) {
1299 printf(", origin=RA");
1302 printf(", origin=RR");
1304 case PR_ORIG_STATIC:
1305 printf(", origin=static");
1307 case PR_ORIG_KERNEL:
1308 printf(", origin=kernel");
1311 printf(", origin=?");
1317 * "advertising router" list is meaningful only if the prefix
1318 * information is from RA.
1320 if (0 && /* prefix origin is almost obsolted */
1321 PR.origin != PR_ORIG_RA)
1323 else if (PR.advrtrs) {
1325 printf(" advertised by\n");
1326 for (j = 0; j < PR.advrtrs; j++) {
1327 struct sockaddr_in6 sin6;
1328 struct in6_nbrinfo *nbi;
1330 bzero(&sin6, sizeof(sin6));
1331 sin6.sin6_family = AF_INET6;
1332 sin6.sin6_len = sizeof(sin6);
1333 sin6.sin6_addr = PR.advrtr[j];
1334 sin6.sin6_scope_id = PR.if_index; /* XXX */
1335 getnameinfo((struct sockaddr *)&sin6,
1336 sin6.sin6_len, host_buf,
1337 sizeof(host_buf), NULL, 0,
1338 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
1339 printf(" %s", host_buf);
1341 nbi = getnbrinfo(&sin6.sin6_addr, PR.if_index,
1344 switch(nbi->state) {
1345 case ND6_LLINFO_REACHABLE:
1346 case ND6_LLINFO_STALE:
1347 case ND6_LLINFO_DELAY:
1348 case ND6_LLINFO_PROBE:
1349 printf(" (reachable)\n");
1352 printf(" (unreachable)\n");
1355 printf(" (no neighbor state)\n");
1357 if (PR.advrtrs > DRLSTSIZ)
1358 printf(" and %d routers\n",
1359 PR.advrtrs - DRLSTSIZ);
1361 printf(" No advertising router\n");
1371 char dummyif[IFNAMSIZ+8];
1374 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1376 strcpy(dummyif, "lo0"); /* dummy */
1377 if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
1378 err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
1384 char dummyif[IFNAMSIZ+8];
1387 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1389 strcpy(dummyif, "lo0"); /* dummy */
1390 if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
1391 err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
1399 char dummyif[IFNAMSIZ+8];
1402 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1404 strcpy(dummyif, "lo0"); /* dummy */
1405 if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
1406 err(1, "ioctl (SIOCSNDFLUSH_IN6)");
1411 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
1413 setdefif(char *ifname)
1415 struct in6_ndifreq ndifreq;
1416 unsigned int ifindex;
1418 if (strcasecmp(ifname, "delete") == 0)
1421 if ((ifindex = if_nametoindex(ifname)) == 0)
1422 err(1, "failed to resolve i/f index for %s", ifname);
1425 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1428 strcpy(ndifreq.ifname, "lo0"); /* dummy */
1429 ndifreq.ifindex = ifindex;
1431 if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1432 err(1, "ioctl (SIOCSDEFIFACE_IN6)");
1440 struct in6_ndifreq ndifreq;
1441 char ifname[IFNAMSIZ+8];
1443 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1446 memset(&ndifreq, 0, sizeof(ndifreq));
1447 strcpy(ndifreq.ifname, "lo0"); /* dummy */
1449 if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1450 err(1, "ioctl (SIOCGDEFIFACE_IN6)");
1452 if (ndifreq.ifindex == 0)
1453 printf("No default interface.\n");
1455 if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL)
1456 err(1, "failed to resolve ifname for index %lu",
1458 printf("ND default interface = %s\n", ifname);
1466 sec2str(time_t total)
1468 static char result[256];
1469 int days, hours, mins, secs;
1473 days = total / 3600 / 24;
1474 hours = (total / 3600) % 24;
1475 mins = (total / 60) % 60;
1480 p += sprintf(p, "%dd", days);
1482 if (!first || hours) {
1484 p += sprintf(p, "%dh", hours);
1486 if (!first || mins) {
1488 p += sprintf(p, "%dm", mins);
1490 sprintf(p, "%ds", secs);
1496 * Print the timestamp
1497 * from tcpdump/util.c
1500 ts_print(const struct timeval *tvp)
1505 s = (tvp->tv_sec + thiszone) % 86400;
1506 printf("%02d:%02d:%02d.%06u ",
1507 s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);