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_dl.h>
87 #include <net/if_types.h>
88 #include <net/route.h>
90 #include <netinet/in.h>
91 #include <netinet/if_ether.h>
93 #include <netinet/icmp6.h>
94 #include <netinet6/in6_var.h>
95 #include <netinet6/nd6.h>
97 #include <arpa/inet.h>
110 #include "gmt2local.h"
112 #define NEXTADDR(w, s) \
113 if (rtm->rtm_addrs & (w)) { \
114 bcopy((char *)&s, cp, sizeof(s)); \
121 static int32_t thiszone; /* time difference with gmt */
123 static int repeat = 0;
125 static char host_buf[NI_MAXHOST]; /* getnameinfo() */
126 static char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
128 static int file(char *);
129 static void getsocket(void);
130 static int set(int, char **);
131 static void get(char *);
132 static int delete(char *);
133 static void dump(struct sockaddr_in6 *, int);
134 static struct in6_nbrinfo *getnbrinfo(struct in6_addr *, int, int);
135 static char *ether_str(struct sockaddr_dl *);
136 static int ndp_ether_aton(char *, u_char *);
137 static void usage(void);
138 static int rtmsg(int);
139 static void ifinfo(char *, int, char **);
140 static void rtrlist(void);
141 static void plist(void);
142 static void pfx_flush(void);
143 static void rtr_flush(void);
144 static void harmonize_rtr(void);
145 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
146 static void getdefif(void);
147 static void setdefif(char *);
149 static char *sec2str(time_t);
150 static void ts_print(const struct timeval *);
152 static char *rtpref_str[] = {
160 main(int argc, char **argv)
166 thiszone = gmt2local(0);
167 while ((ch = getopt(argc, argv, "acd:f:Ii:nprstA:HPR")) != -1)
186 exit(file(optarg) ? 1 : 0);
208 repeat = atoi(optarg);
228 dump(0, mode == 'c');
238 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
242 } else if (argc == 1) {
243 if (strcmp(*argv, "delete") == 0 ||
244 if_nametoindex(*argv))
247 errx(1, "invalid interface %s", *argv);
249 getdefif(); /* always call it to print the result */
252 errx(1, "not supported yet");
263 ifinfo(arg, argc, argv);
273 if (argc < 2 || argc > 4)
275 exit(set(argc, argv) ? 1 : 0);
309 * Process a file to set standard ndp entries
316 char line[100], arg[5][50], *args[5], *p;
318 if ((fp = fopen(name, "r")) == NULL)
319 err(1, "cannot open %s", name);
320 args[0] = &arg[0][0];
321 args[1] = &arg[1][0];
322 args[2] = &arg[2][0];
323 args[3] = &arg[3][0];
324 args[4] = &arg[4][0];
326 while (fgets(line, sizeof(line), fp) != NULL) {
327 if ((p = strchr(line, '#')) != NULL)
329 for (p = line; isblank(*p); p++);
330 if (*p == '\n' || *p == '\0')
332 i = sscanf(line, "%49s %49s %49s %49s %49s",
333 arg[0], arg[1], arg[2], arg[3], arg[4]);
335 warnx("bad line: %s", line);
350 s = socket(PF_ROUTE, SOCK_RAW, 0);
358 static struct sockaddr_in6 so_mask = {
359 .sin6_len = sizeof(so_mask),
360 .sin6_family = AF_INET6
362 static struct sockaddr_in6 blank_sin = {
363 .sin6_len = sizeof(blank_sin),
364 .sin6_family = AF_INET6
366 static struct sockaddr_in6 sin_m;
367 static struct sockaddr_dl blank_sdl = {
368 .sdl_len = sizeof(blank_sdl),
369 .sdl_family = AF_LINK
371 static struct sockaddr_dl sdl_m;
372 static time_t expire_time;
373 static int flags, found_entry;
375 struct rt_msghdr m_rtm;
380 * Set an individual neighbor cache entry
383 set(int argc, char **argv)
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 *)(ALIGN(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
460 struct sockaddr_in6 *sin = &sin_m;
461 struct addrinfo hints, *res;
465 bzero(&hints, sizeof(hints));
466 hints.ai_family = AF_INET6;
467 gai_error = getaddrinfo(host, NULL, &hints, &res);
469 fprintf(stderr, "ndp: %s: %s\n", host,
470 gai_strerror(gai_error));
473 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
475 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
477 if (found_entry == 0) {
478 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
479 sizeof(host_buf), NULL ,0,
480 (nflag ? NI_NUMERICHOST : 0));
481 printf("%s (%s) -- no entry\n", host, host_buf);
487 * 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 *)(ALIGN(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
558 dump(struct sockaddr_in6 *addr, int cflag)
562 char *lim, *buf, *next;
563 struct rt_msghdr *rtm;
564 struct sockaddr_in6 *sin;
565 struct sockaddr_dl *sdl;
576 if (!tflag && !cflag)
577 printf("%-*.*s %-*.*s %*.*s %-9.9s %1s %5s\n",
578 W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
579 W_IF, W_IF, "Netif", "Expire", "S", "Flags");
586 mib[4] = NET_RT_FLAGS;
592 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
593 err(1, "sysctl(PF_ROUTE estimate)");
595 if ((buf = malloc(needed)) == NULL)
597 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
598 err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)");
603 for (next = buf; next && next < lim; next += rtm->rtm_msglen) {
604 int isrouter = 0, prbs = 0;
606 rtm = (struct rt_msghdr *)next;
607 sin = (struct sockaddr_in6 *)(rtm + 1);
608 sdl = (struct sockaddr_dl *)((char *)sin +
609 ALIGN(sin->sin6_len));
612 * Some OSes can produce a route that has the LINK flag but
613 * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD
614 * and BSD/OS, where xx is not the interface identifier on
615 * lo0). Such routes entry would annoy getnbrinfo() below,
617 * XXX: such routes should have the GATEWAY flag, not the
618 * LINK flag. However, there is rotten routing software
619 * that advertises all routes that have the GATEWAY flag.
620 * Thus, KAME kernel intentionally does not set the LINK flag.
621 * What is to be fixed is not ndp, but such routing software
622 * (and the kernel workaround)...
624 if (sdl->sdl_family != AF_LINK)
627 if (!(rtm->rtm_flags & RTF_HOST))
631 if (IN6_ARE_ADDR_EQUAL(&addr->sin6_addr,
632 &sin->sin6_addr) == 0 ||
633 addr->sin6_scope_id != sin->sin6_scope_id)
636 } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
638 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) ||
639 IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) {
640 /* XXX: should scope id be filled in the kernel? */
641 if (sin->sin6_scope_id == 0)
642 sin->sin6_scope_id = sdl->sdl_index;
644 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
645 sizeof(host_buf), NULL, 0, (nflag ? NI_NUMERICHOST : 0));
648 if (rtm->rtm_flags & RTF_WASCLONED)
650 #elif defined(RTF_CLONED)
651 if (rtm->rtm_flags & RTF_CLONED)
654 if (rtm->rtm_flags & RTF_PINNED)
660 gettimeofday(&now, 0);
664 addrwidth = strlen(host_buf);
665 if (addrwidth < W_ADDR)
667 llwidth = strlen(ether_str(sdl));
668 if (W_ADDR + W_LL - addrwidth > llwidth)
669 llwidth = W_ADDR + W_LL - addrwidth;
670 ifname = if_indextoname(sdl->sdl_index, ifix_buf);
673 ifwidth = strlen(ifname);
674 if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth)
675 ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth;
677 printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf,
678 llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname);
680 /* Print neighbor discovery specific information */
681 expire = rtm->rtm_rmx.rmx_expire;
682 if (expire > now.tv_sec)
683 printf(" %-9.9s", sec2str(expire - now.tv_sec));
684 else if (expire == 0)
685 printf(" %-9.9s", "permanent");
687 printf(" %-9.9s", "expired");
689 switch (rtm->rtm_rmx.rmx_state) {
690 case ND6_LLINFO_NOSTATE:
693 #ifdef ND6_LLINFO_WAITDELETE
694 case ND6_LLINFO_WAITDELETE:
698 case ND6_LLINFO_INCOMPLETE:
701 case ND6_LLINFO_REACHABLE:
704 case ND6_LLINFO_STALE:
707 case ND6_LLINFO_DELAY:
710 case ND6_LLINFO_PROBE:
718 isrouter = rtm->rtm_flags & RTF_GATEWAY;
719 prbs = rtm->rtm_rmx.rmx_pksent;
722 * other flags. R: router, P: proxy, W: ??
724 if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
725 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
727 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
729 #if 0 /* W and P are mystery even for us */
730 sin = (struct sockaddr_in6 *)
731 (sdl->sdl_len + (char *)sdl);
732 snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s",
734 !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr) ? "P" : "",
735 (sin->sin6_len != sizeof(struct sockaddr_in6)) ? "W" : "",
736 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
738 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
740 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
743 printf(" %s", flgbuf);
761 static struct in6_nbrinfo *
762 getnbrinfo(struct in6_addr *addr, int ifindex, int warning)
764 static struct in6_nbrinfo nbi;
767 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
770 bzero(&nbi, sizeof(nbi));
771 if_indextoname(ifindex, nbi.ifname);
773 if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
775 warn("ioctl(SIOCGNBRINFO_IN6)");
785 ether_str(struct sockaddr_dl *sdl)
787 static char hbuf[NI_MAXHOST];
789 if (sdl->sdl_alen == ETHER_ADDR_LEN) {
790 strlcpy(hbuf, ether_ntoa((struct ether_addr *)LLADDR(sdl)),
792 } else if (sdl->sdl_alen) {
793 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
794 snprintf(hbuf, sizeof(hbuf), "%s", link_ntoa(sdl) + n);
796 snprintf(hbuf, sizeof(hbuf), "(incomplete)");
802 ndp_ether_aton(char *a, u_char *n)
806 i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2],
807 &o[3], &o[4], &o[5]);
809 fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a);
812 for (i = 0; i < 6; i++)
820 printf("usage: ndp [-nt] hostname\n");
821 printf(" ndp [-nt] -a | -c | -p | -r | -H | -P | -R\n");
822 printf(" ndp [-nt] -A wait\n");
823 printf(" ndp [-nt] -d hostname\n");
824 printf(" ndp [-nt] -f filename\n");
825 printf(" ndp [-nt] -i interface [flags...]\n");
826 #ifdef SIOCSDEFIFACE_IN6
827 printf(" ndp [-nt] -I [interface|delete]\n");
829 printf(" ndp [-nt] -s nodename etheraddr [temp] [proxy]\n");
838 register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
839 register char *cp = m_rtmsg.m_space;
843 if (cmd == RTM_DELETE)
845 bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
846 rtm->rtm_flags = flags;
847 rtm->rtm_version = RTM_VERSION;
851 fprintf(stderr, "ndp: internal wrong cmd\n");
854 rtm->rtm_addrs |= RTA_GATEWAY;
856 rtm->rtm_rmx.rmx_expire = expire_time;
857 rtm->rtm_inits = RTV_EXPIRE;
859 rtm->rtm_flags |= (RTF_HOST | RTF_STATIC | RTF_LLDATA);
860 #if 0 /* we don't support ipv6addr/128 type proxying */
861 if (rtm->rtm_flags & RTF_ANNOUNCE) {
862 rtm->rtm_flags &= ~RTF_HOST;
863 rtm->rtm_addrs |= RTA_NETMASK;
868 rtm->rtm_addrs |= RTA_DST;
871 NEXTADDR(RTA_DST, sin_m);
872 NEXTADDR(RTA_GATEWAY, sdl_m);
873 #if 0 /* we don't support ipv6addr/128 type proxying */
874 memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
875 NEXTADDR(RTA_NETMASK, so_mask);
878 rtm->rtm_msglen = cp - (char *)&m_rtmsg;
881 rtm->rtm_seq = ++seq;
883 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
884 if (errno != ESRCH || cmd != RTM_DELETE) {
885 err(1, "writing to routing socket");
890 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
891 } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
893 (void) fprintf(stderr, "ndp: read from routing socket: %s\n",
899 ifinfo(char *ifname, int argc, char **argv)
901 struct in6_ndireq nd;
904 #ifdef IPV6CTL_USETEMPADDR
908 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
912 bzero(&nd, sizeof(nd));
913 strlcpy(nd.ifname, ifname, sizeof(nd.ifname));
914 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
915 err(1, "ioctl(SIOCGIFINFO_IN6)");
920 for (i = 0; i < argc; i++) {
929 #define SETFLAG(s, f) do { \
930 if (strcmp(cp, (s)) == 0) { \
938 * XXX: this macro is not 100% correct, in that it matches "nud" against
939 * "nudbogus". But we just let it go since this is minor.
941 #define SETVALUE(f, v) do { \
943 unsigned long newval; \
944 v = 0; /* unspecified */ \
945 if (strncmp(cp, f, strlen(f)) == 0) { \
946 valptr = strchr(cp, '='); \
947 if (valptr == NULL) \
948 err(1, "syntax error in %s field", (f)); \
950 newval = strtoul(++valptr, NULL, 0); \
952 err(1, "syntax error in %s's value", (f)); \
957 SETFLAG("disabled", ND6_IFF_IFDISABLED);
958 SETFLAG("nud", ND6_IFF_PERFORMNUD);
959 #ifdef ND6_IFF_ACCEPT_RTADV
960 SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
962 #ifdef ND6_IFF_AUTO_LINKLOCAL
963 SETFLAG("auto_linklocal", ND6_IFF_AUTO_LINKLOCAL);
965 #ifdef ND6_IFF_NO_PREFER_IFACE
966 SETFLAG("no_prefer_iface", ND6_IFF_NO_PREFER_IFACE);
968 SETVALUE("basereachable", ND.basereachable);
969 SETVALUE("retrans", ND.retrans);
970 SETVALUE("curhlim", ND.chlim);
973 if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd) < 0) {
974 err(1, "ioctl(SIOCSIFINFO_IN6)");
981 if (!ND.initialized) {
982 errx(1, "%s: not initialized yet", ifname);
986 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
987 err(1, "ioctl(SIOCGIFINFO_IN6)");
990 printf("linkmtu=%d", ND.linkmtu);
991 printf(", maxmtu=%d", ND.maxmtu);
992 printf(", curhlim=%d", ND.chlim);
993 printf(", basereachable=%ds%dms",
994 ND.basereachable / 1000, ND.basereachable % 1000);
995 printf(", reachable=%ds", ND.reachable);
996 printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
997 #ifdef IPV6CTL_USETEMPADDR
998 memset(nullbuf, 0, sizeof(nullbuf));
999 if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) {
1003 for (i = 0; i < 3; i++) {
1006 printf("\nRandom seed(0): ");
1007 rbuf = ND.randomseed0;
1010 printf("\nRandom seed(1): ");
1011 rbuf = ND.randomseed1;
1014 printf("\nRandom ID: ");
1018 errx(1, "impossible case for tempaddr display");
1020 for (j = 0; j < 8; j++)
1021 printf("%02x", rbuf[j]);
1024 #endif /* IPV6CTL_USETEMPADDR */
1026 printf("\nFlags: ");
1027 #ifdef ND6_IFF_IFDISABLED
1028 if ((ND.flags & ND6_IFF_IFDISABLED))
1029 printf("disabled ");
1031 if ((ND.flags & ND6_IFF_PERFORMNUD))
1033 #ifdef ND6_IFF_ACCEPT_RTADV
1034 if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
1035 printf("accept_rtadv ");
1037 #ifdef ND6_IFF_AUTO_LINKLOCAL
1038 if ((ND.flags & ND6_IFF_AUTO_LINKLOCAL))
1039 printf("auto_linklocal ");
1041 #ifdef ND6_IFF_NO_PREFER_IFACE
1042 if ((ND.flags & ND6_IFF_NO_PREFER_IFACE))
1043 printf("no_prefer_iface ");
1052 #ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */
1053 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
1059 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
1061 struct in6_defrouter *p, *ep;
1065 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1066 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1076 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1077 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1081 ep = (struct in6_defrouter *)(buf + l);
1082 for (p = (struct in6_defrouter *)buf; p < ep; p++) {
1085 if (getnameinfo((struct sockaddr *)&p->rtaddr,
1086 p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0,
1087 (nflag ? NI_NUMERICHOST : 0)) != 0)
1088 strlcpy(host_buf, "?", sizeof(host_buf));
1090 printf("%s if=%s", host_buf,
1091 if_indextoname(p->if_index, ifix_buf));
1092 printf(", flags=%s%s",
1093 p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
1094 p->flags & ND_RA_FLAG_OTHER ? "O" : "");
1095 rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
1096 printf(", pref=%s", rtpref_str[rtpref]);
1098 gettimeofday(&now, 0);
1100 printf(", expire=Never\n");
1102 printf(", expire=%s\n",
1103 sec2str(p->expire - now.tv_sec));
1111 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
1113 struct in6_prefix *p, *ep, *n;
1114 struct sockaddr_in6 *advrtr;
1117 const int niflags = NI_NUMERICHOST;
1118 int ninflags = nflag ? NI_NUMERICHOST : 0;
1119 char namebuf[NI_MAXHOST];
1121 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1122 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1130 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1131 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1135 ep = (struct in6_prefix *)(buf + l);
1136 for (p = (struct in6_prefix *)buf; p < ep; p = n) {
1137 advrtr = (struct sockaddr_in6 *)(p + 1);
1138 n = (struct in6_prefix *)&advrtr[p->advrtrs];
1140 if (getnameinfo((struct sockaddr *)&p->prefix,
1141 p->prefix.sin6_len, namebuf, sizeof(namebuf),
1142 NULL, 0, niflags) != 0)
1143 strlcpy(namebuf, "?", sizeof(namebuf));
1144 printf("%s/%d if=%s\n", namebuf, p->prefixlen,
1145 if_indextoname(p->if_index, ifix_buf));
1147 gettimeofday(&now, 0);
1149 * meaning of fields, especially flags, is very different
1150 * by origin. notify the difference to the users.
1152 printf("flags=%s%s%s%s%s",
1153 p->raflags.onlink ? "L" : "",
1154 p->raflags.autonomous ? "A" : "",
1155 (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
1156 (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
1158 (p->flags & NDPRF_HOME) != 0 ? "H" : ""
1163 if (p->vltime == ND6_INFINITE_LIFETIME)
1164 printf(" vltime=infinity");
1166 printf(" vltime=%lu", (unsigned long)p->vltime);
1167 if (p->pltime == ND6_INFINITE_LIFETIME)
1168 printf(", pltime=infinity");
1170 printf(", pltime=%lu", (unsigned long)p->pltime);
1172 printf(", expire=Never");
1173 else if (p->expire >= now.tv_sec)
1174 printf(", expire=%s",
1175 sec2str(p->expire - now.tv_sec));
1177 printf(", expired");
1178 printf(", ref=%d", p->refcnt);
1181 * "advertising router" list is meaningful only if the prefix
1182 * information is from RA.
1186 struct sockaddr_in6 *sin6;
1189 printf(" advertised by\n");
1190 for (j = 0; j < p->advrtrs; j++) {
1191 struct in6_nbrinfo *nbi;
1193 if (getnameinfo((struct sockaddr *)sin6,
1194 sin6->sin6_len, namebuf, sizeof(namebuf),
1195 NULL, 0, ninflags) != 0)
1196 strlcpy(namebuf, "?", sizeof(namebuf));
1197 printf(" %s", namebuf);
1199 nbi = getnbrinfo(&sin6->sin6_addr,
1202 switch (nbi->state) {
1203 case ND6_LLINFO_REACHABLE:
1204 case ND6_LLINFO_STALE:
1205 case ND6_LLINFO_DELAY:
1206 case ND6_LLINFO_PROBE:
1207 printf(" (reachable)\n");
1210 printf(" (unreachable)\n");
1213 printf(" (no neighbor state)\n");
1217 printf(" No advertising router\n");
1225 char dummyif[IFNAMSIZ+8];
1228 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1230 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1231 if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
1232 err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
1238 char dummyif[IFNAMSIZ+8];
1241 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1243 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1244 if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
1245 err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
1253 char dummyif[IFNAMSIZ+8];
1256 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1258 strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
1259 if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
1260 err(1, "ioctl(SIOCSNDFLUSH_IN6)");
1265 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
1267 setdefif(char *ifname)
1269 struct in6_ndifreq ndifreq;
1270 unsigned int ifindex;
1272 if (strcasecmp(ifname, "delete") == 0)
1275 if ((ifindex = if_nametoindex(ifname)) == 0)
1276 err(1, "failed to resolve i/f index for %s", ifname);
1279 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1282 strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
1283 ndifreq.ifindex = ifindex;
1285 if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1286 err(1, "ioctl(SIOCSDEFIFACE_IN6)");
1294 struct in6_ndifreq ndifreq;
1295 char ifname[IFNAMSIZ+8];
1297 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1300 memset(&ndifreq, 0, sizeof(ndifreq));
1301 strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
1303 if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1304 err(1, "ioctl(SIOCGDEFIFACE_IN6)");
1306 if (ndifreq.ifindex == 0)
1307 printf("No default interface.\n");
1309 if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL)
1310 err(1, "failed to resolve ifname for index %lu",
1312 printf("ND default interface = %s\n", ifname);
1317 #endif /* SIOCSDEFIFACE_IN6 */
1320 sec2str(time_t total)
1322 static char result[256];
1323 int days, hours, mins, secs;
1326 char *ep = &result[sizeof(result)];
1329 days = total / 3600 / 24;
1330 hours = (total / 3600) % 24;
1331 mins = (total / 60) % 60;
1336 n = snprintf(p, ep - p, "%dd", days);
1337 if (n < 0 || n >= ep - p)
1341 if (!first || hours) {
1343 n = snprintf(p, ep - p, "%dh", hours);
1344 if (n < 0 || n >= ep - p)
1348 if (!first || mins) {
1350 n = snprintf(p, ep - p, "%dm", mins);
1351 if (n < 0 || n >= ep - p)
1355 snprintf(p, ep - p, "%ds", secs);
1361 * Print the timestamp
1362 * from tcpdump/util.c
1365 ts_print(const struct timeval *tvp)
1370 s = (tvp->tv_sec + thiszone) % 86400;
1371 (void)printf("%02d:%02d:%02d.%06u ",
1372 s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);