--- /dev/null
+/* $NetBSD: ndp.c,v 1.45 2015/08/03 09:51:40 ozaki-r Exp $ */
+/* $KAME: ndp.c,v 1.121 2005/07/13 11:30:13 keiichi Exp $ */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * Copyright (c) 1984, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Sun Microsystems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Based on:
+ * "@(#) Copyright (c) 1984, 1993\n\
+ * The Regents of the University of California. All rights reserved.\n";
+ *
+ * "@(#)arp.c 8.2 (Berkeley) 1/2/94";
+ */
+
+/*
+ * ndp - display, set, delete and flush neighbor cache
+ */
+
+
+#include <sys/param.h>
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <net/route.h>
+
+#include <netinet/in.h>
+
+#include <netinet/icmp6.h>
+#include <netinet6/in6_var.h>
+#include <netinet6/nd6.h>
+
+#include <arpa/inet.h>
+
+#include <netdb.h>
+#include <errno.h>
+#include <nlist.h>
+#include <stdio.h>
+#include <string.h>
+#include <paths.h>
+#include <err.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "gmt2local.h"
+#include "prog_ops.h"
+
+static pid_t pid;
+static int nflag;
+static int tflag;
+static int32_t thiszone; /* time difference with gmt */
+static int my_s = -1;
+static unsigned int repeat = 0;
+
+
+static char host_buf[NI_MAXHOST]; /* getnameinfo() */
+static char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
+
+static void getsocket(void);
+static int set(int, char **);
+static void get(char *);
+static int delete(char *);
+static void dump(struct in6_addr *, int);
+static struct in6_nbrinfo *getnbrinfo(struct in6_addr *, unsigned int, int);
+static char *ether_str(struct sockaddr_dl *);
+static int ndp_ether_aton(char *, u_char *);
+__dead static void usage(void);
+static int rtmsg(int);
+static void ifinfo(char *, int, char **);
+static void rtrlist(void);
+static void plist(void);
+static void pfx_flush(void);
+static void rtrlist(void);
+static void rtr_flush(void);
+static void harmonize_rtr(void);
+#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
+static void getdefif(void);
+static void setdefif(char *);
+#endif
+static const char *sec2str(time_t);
+static char *ether_str(struct sockaddr_dl *);
+static void ts_print(const struct timeval *);
+
+#ifdef ICMPV6CTL_ND6_DRLIST
+static const char *rtpref_str[] = {
+ "medium", /* 00 */
+ "high", /* 01 */
+ "rsv", /* 10 */
+ "low" /* 11 */
+};
+#endif
+
+static int mode = 0;
+static char *arg = NULL;
+
+int
+main(int argc, char **argv)
+{
+ int ch;
+
+ while ((ch = getopt(argc, argv, "acd:f:Ii:nprstA:HPR")) != -1)
+ switch (ch) {
+ case 'a':
+ case 'c':
+ case 'p':
+ case 'r':
+ case 'H':
+ case 'P':
+ case 'R':
+ case 's':
+ case 'I':
+ if (mode) {
+ usage();
+ /*NOTREACHED*/
+ }
+ mode = ch;
+ arg = NULL;
+ break;
+ case 'd':
+ case 'f':
+ case 'i' :
+ if (mode) {
+ usage();
+ /*NOTREACHED*/
+ }
+ mode = ch;
+ arg = optarg;
+ break;
+ case 'n':
+ nflag = 1;
+ break;
+ case 't':
+ tflag = 1;
+ break;
+ case 'A':
+ if (mode) {
+ usage();
+ /*NOTREACHED*/
+ }
+ mode = 'a';
+ repeat = atoi(optarg);
+ break;
+ default:
+ usage();
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (prog_init && prog_init() == -1)
+ err(1, "init failed");
+
+ pid = prog_getpid();
+ thiszone = gmt2local(0L);
+
+ switch (mode) {
+ case 'a':
+ case 'c':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ dump(0, mode == 'c');
+ break;
+ case 'd':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ (void)delete(arg);
+ break;
+ case 'I':
+#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
+ if (argc > 1) {
+ usage();
+ /*NOTREACHED*/
+ } else if (argc == 1) {
+ if (strcmp(*argv, "delete") == 0 ||
+ if_nametoindex(*argv))
+ setdefif(*argv);
+ else
+ errx(1, "invalid interface %s", *argv);
+ }
+ getdefif(); /* always call it to print the result */
+ break;
+#else
+ errx(1, "not supported yet");
+ /*NOTREACHED*/
+#endif
+ case 'p':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ plist();
+ break;
+ case 'i':
+ ifinfo(arg, argc, argv);
+ break;
+ case 'r':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ rtrlist();
+ break;
+ case 's':
+ if (argc < 2 || argc > 4)
+ usage();
+ return(set(argc, argv) ? 1 : 0);
+ case 'H':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ harmonize_rtr();
+ break;
+ case 'P':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ pfx_flush();
+ break;
+ case 'R':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ rtr_flush();
+ break;
+ case 0:
+ if (argc != 1) {
+ usage();
+ /*NOTREACHED*/
+ }
+ get(argv[0]);
+ break;
+ }
+ return(0);
+}
+
+static void
+getsocket(void)
+{
+ if (my_s < 0) {
+ my_s = prog_socket(PF_ROUTE, SOCK_RAW, 0);
+ if (my_s < 0)
+ err(1, "socket");
+ }
+}
+
+#ifdef notdef
+static struct sockaddr_in6 so_mask = {
+ .sin6_len = sizeof(so_mask),
+ .sin6_family = AF_INET6
+};
+#endif
+static struct sockaddr_in6 blank_sin = {
+ .sin6_len = sizeof(blank_sin),
+ .sin6_family = AF_INET6
+};
+static struct sockaddr_in6 sin_m;
+static struct sockaddr_dl blank_sdl = {
+ .sdl_len = sizeof(blank_sdl),
+ .sdl_family = AF_LINK,
+};
+static struct sockaddr_dl sdl_m;
+static int expire_time, flags, found_entry;
+static struct {
+ struct rt_msghdr m_rtm;
+ char m_space[512];
+} m_rtmsg;
+
+/*
+ * Set an individual neighbor cache entry
+ */
+static int
+set(int argc, char **argv)
+{
+ register struct sockaddr_in6 *mysin = &sin_m;
+ register struct sockaddr_dl *sdl;
+ register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
+ struct addrinfo hints, *res;
+ int gai_error;
+ u_char *ea;
+ char *host = argv[0], *eaddr = argv[1];
+
+ getsocket();
+ argc -= 2;
+ argv += 2;
+ sdl_m = blank_sdl;
+ sin_m = blank_sin;
+
+ (void)memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ gai_error = getaddrinfo(host, NULL, &hints, &res);
+ if (gai_error) {
+ warnx("%s: %s", host, gai_strerror(gai_error));
+ return 1;
+ }
+ mysin->sin6_addr = ((struct sockaddr_in6 *)(void *)res->ai_addr)->sin6_addr;
+ inet6_putscopeid(mysin, INET6_IS_ADDR_LINKLOCAL);
+ ea = (u_char *)LLADDR(&sdl_m);
+ if (ndp_ether_aton(eaddr, ea) == 0)
+ sdl_m.sdl_alen = 6;
+ flags = expire_time = 0;
+ while (argc-- > 0) {
+ if (strncmp(argv[0], "temp", 4) == 0) {
+ struct timeval tim;
+
+ (void)gettimeofday(&tim, 0);
+ expire_time = tim.tv_sec + 20 * 60;
+ } else if (strncmp(argv[0], "proxy", 5) == 0)
+ flags |= RTF_ANNOUNCE;
+ argv++;
+ }
+ if (rtmsg(RTM_GET) < 0) {
+ errx(1, "RTM_GET(%s) failed", host);
+ /* NOTREACHED */
+ }
+ mysin = (struct sockaddr_in6 *)(void *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)(void *)(RT_ROUNDUP(mysin->sin6_len) + (char *)(void *)mysin);
+ if (IN6_ARE_ADDR_EQUAL(&mysin->sin6_addr, &sin_m.sin6_addr)) {
+ if (sdl->sdl_family == AF_LINK &&
+ (rtm->rtm_flags & RTF_LLINFO) &&
+ !(rtm->rtm_flags & RTF_GATEWAY)) {
+ switch (sdl->sdl_type) {
+ case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
+ case IFT_ISO88024: case IFT_ISO88025:
+ goto overwrite;
+ }
+ }
+ /*
+ * IPv4 arp command retries with sin_other = SIN_PROXY here.
+ */
+ (void)fprintf(stderr, "set: cannot configure a new entry\n");
+ return 1;
+ }
+
+overwrite:
+ if (sdl->sdl_family != AF_LINK) {
+ warnx("cannot intuit interface index and type for %s", host);
+ return (1);
+ }
+ sdl_m.sdl_type = sdl->sdl_type;
+ sdl_m.sdl_index = sdl->sdl_index;
+ return (rtmsg(RTM_ADD));
+}
+
+/*
+ * Display an individual neighbor cache entry
+ */
+static void
+get(char *host)
+{
+ struct sockaddr_in6 *mysin = &sin_m;
+ struct addrinfo hints, *res;
+ int gai_error;
+
+ sin_m = blank_sin;
+ (void)memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ gai_error = getaddrinfo(host, NULL, &hints, &res);
+ if (gai_error) {
+ warnx("%s: %s", host, gai_strerror(gai_error));
+ return;
+ }
+ mysin->sin6_addr = ((struct sockaddr_in6 *)(void *)res->ai_addr)->sin6_addr;
+ inet6_putscopeid(mysin, INET6_IS_ADDR_LINKLOCAL);
+ dump(&mysin->sin6_addr, 0);
+ if (found_entry == 0) {
+ (void)getnameinfo((struct sockaddr *)(void *)mysin,
+ (socklen_t)mysin->sin6_len,
+ host_buf, sizeof(host_buf), NULL ,0,
+ (nflag ? NI_NUMERICHOST : 0));
+ errx(1, "%s (%s) -- no entry", host, host_buf);
+ }
+}
+
+/*
+ * Delete a neighbor cache entry
+ */
+static int
+delete(char *host)
+{
+ struct sockaddr_in6 *mysin = &sin_m;
+ register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
+ struct sockaddr_dl *sdl;
+ struct addrinfo hints, *res;
+ int gai_error;
+
+ getsocket();
+ sin_m = blank_sin;
+
+ bzero(&hints, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ gai_error = getaddrinfo(host, NULL, &hints, &res);
+ if (gai_error) {
+ warnx("%s: %s", host, gai_strerror(gai_error));
+ return 1;
+ }
+ mysin->sin6_addr = ((struct sockaddr_in6 *)(void *)res->ai_addr)->sin6_addr;
+ inet6_putscopeid(mysin, INET6_IS_ADDR_LINKLOCAL);
+ if (rtmsg(RTM_GET) < 0)
+ errx(1, "RTM_GET(%s) failed", host);
+ mysin = (struct sockaddr_in6 *)(void *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)(void *)(RT_ROUNDUP(mysin->sin6_len) +
+ (char *)(void *)mysin);
+ if (IN6_ARE_ADDR_EQUAL(&mysin->sin6_addr, &sin_m.sin6_addr)) {
+ if (sdl->sdl_family == AF_LINK &&
+ (rtm->rtm_flags & RTF_LLINFO) &&
+ !(rtm->rtm_flags & RTF_GATEWAY)) {
+ goto delete;
+ }
+ /*
+ * IPv4 arp command retries with sin_other = SIN_PROXY here.
+ */
+ warnx("delete: cannot delete non-NDP entry");
+ return 1;
+ }
+
+delete:
+ if (sdl->sdl_family != AF_LINK) {
+ (void)printf("cannot locate %s\n", host);
+ return (1);
+ }
+ if (rtmsg(RTM_DELETE) == 0) {
+ struct sockaddr_in6 s6 = *mysin; /* XXX: for safety */
+
+ mysin->sin6_scope_id = 0;
+ inet6_putscopeid(mysin, INET6_IS_ADDR_LINKLOCAL);
+ (void)getnameinfo((struct sockaddr *)(void *)&s6,
+ (socklen_t)s6.sin6_len, host_buf,
+ sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0));
+ (void)printf("%s (%s) deleted\n", host, host_buf);
+ }
+
+ return 0;
+}
+
+#define W_ADDR 36
+#define W_LL 17
+#define W_IF 6
+
+/*
+ * Dump the entire neighbor cache
+ */
+static void
+dump(struct in6_addr *addr, int cflag)
+{
+ int mib[6];
+ size_t needed;
+ char *lim, *buf, *next;
+ struct rt_msghdr *rtm;
+ struct sockaddr_in6 *mysin;
+ struct sockaddr_dl *sdl;
+ struct in6_nbrinfo *nbi;
+ struct timeval tim;
+ int addrwidth;
+ int llwidth;
+ int ifwidth;
+ char flgbuf[8];
+ const char *ifname;
+
+ /* Print header */
+ if (!tflag && !cflag)
+ (void)printf("%-*.*s %-*.*s %*.*s %-9.9s %1s %5s\n",
+ W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
+ W_IF, W_IF, "Netif", "Expire", "S", "Flags");
+
+again:;
+ mib[0] = CTL_NET;
+ mib[1] = PF_ROUTE;
+ mib[2] = 0;
+ mib[3] = AF_INET6;
+ mib[4] = NET_RT_FLAGS;
+ mib[5] = RTF_LLINFO;
+ if (prog_sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
+ err(1, "sysctl(PF_ROUTE estimate)");
+ if (needed > 0) {
+ if ((buf = malloc(needed)) == NULL)
+ err(1, "malloc");
+ if (prog_sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
+ err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)");
+ lim = buf + needed;
+ } else
+ buf = lim = NULL;
+
+ for (next = buf; next && next < lim; next += rtm->rtm_msglen) {
+ int isrouter = 0, prbs = 0;
+
+ rtm = (struct rt_msghdr *)(void *)next;
+ mysin = (struct sockaddr_in6 *)(void *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)(void *)((char *)(void *)mysin + RT_ROUNDUP(mysin->sin6_len));
+
+ /*
+ * Some OSes can produce a route that has the LINK flag but
+ * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD
+ * and BSD/OS, where xx is not the interface identifier on
+ * lo0). Such routes entry would annoy getnbrinfo() below,
+ * so we skip them.
+ * XXX: such routes should have the GATEWAY flag, not the
+ * LINK flag. However, there is rotten routing software
+ * that advertises all routes that have the GATEWAY flag.
+ * Thus, KAME kernel intentionally does not set the LINK flag.
+ * What is to be fixed is not ndp, but such routing software
+ * (and the kernel workaround)...
+ */
+ if (sdl->sdl_family != AF_LINK)
+ continue;
+
+ if (!(rtm->rtm_flags & RTF_HOST))
+ continue;
+
+ if (addr) {
+ if (!IN6_ARE_ADDR_EQUAL(addr, &mysin->sin6_addr))
+ continue;
+ found_entry = 1;
+ } else if (IN6_IS_ADDR_MULTICAST(&mysin->sin6_addr))
+ continue;
+ if (IN6_IS_ADDR_LINKLOCAL(&mysin->sin6_addr) ||
+ IN6_IS_ADDR_MC_LINKLOCAL(&mysin->sin6_addr)) {
+ uint16_t scopeid = mysin->sin6_scope_id;
+ inet6_getscopeid(mysin, INET6_IS_ADDR_LINKLOCAL|
+ INET6_IS_ADDR_MC_LINKLOCAL);
+ if (scopeid == 0)
+ mysin->sin6_scope_id = sdl->sdl_index;
+ }
+ (void)getnameinfo((struct sockaddr *)(void *)mysin,
+ (socklen_t)mysin->sin6_len,
+ host_buf, sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0));
+ if (cflag) {
+#ifdef RTF_WASCLONED
+ if (rtm->rtm_flags & RTF_WASCLONED)
+ (void)delete(host_buf);
+#elif defined(RTF_CLONED)
+ if (rtm->rtm_flags & RTF_CLONED)
+ (void)delete(host_buf);
+#else
+ (void)delete(host_buf);
+#endif
+ continue;
+ }
+ (void)gettimeofday(&tim, 0);
+ if (tflag)
+ ts_print(&tim);
+
+ addrwidth = strlen(host_buf);
+ if (addrwidth < W_ADDR)
+ addrwidth = W_ADDR;
+ llwidth = strlen(ether_str(sdl));
+ if (W_ADDR + W_LL - addrwidth > llwidth)
+ llwidth = W_ADDR + W_LL - addrwidth;
+ ifname = if_indextoname((unsigned int)sdl->sdl_index, ifix_buf);
+ if (!ifname)
+ ifname = "?";
+ ifwidth = strlen(ifname);
+ if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth)
+ ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth;
+
+ (void)printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth,
+ host_buf, llwidth, llwidth, ether_str(sdl), ifwidth,
+ ifwidth, ifname);
+
+ /* Print neighbor discovery specific informations */
+ nbi = getnbrinfo(&mysin->sin6_addr,
+ (unsigned int)sdl->sdl_index, 1);
+ if (nbi) {
+ if (nbi->expire > tim.tv_sec) {
+ (void)printf(" %-9.9s",
+ sec2str(nbi->expire - tim.tv_sec));
+ } else if (nbi->expire == 0)
+ (void)printf(" %-9.9s", "permanent");
+ else
+ (void)printf(" %-9.9s", "expired");
+
+ switch (nbi->state) {
+ case ND6_LLINFO_NOSTATE:
+ (void)printf(" N");
+ break;
+#ifdef ND6_LLINFO_WAITDELETE
+ case ND6_LLINFO_WAITDELETE:
+ (void)printf(" W");
+ break;
+#endif
+ case ND6_LLINFO_INCOMPLETE:
+ (void)printf(" I");
+ break;
+ case ND6_LLINFO_REACHABLE:
+ (void)printf(" R");
+ break;
+ case ND6_LLINFO_STALE:
+ (void)printf(" S");
+ break;
+ case ND6_LLINFO_DELAY:
+ (void)printf(" D");
+ break;
+ case ND6_LLINFO_PROBE:
+ (void)printf(" P");
+ break;
+ default:
+ (void)printf(" ?");
+ break;
+ }
+
+ isrouter = nbi->isrouter;
+ prbs = nbi->asked;
+ } else {
+ warnx("failed to get neighbor information");
+ (void)printf(" ");
+ }
+
+ /*
+ * other flags. R: router, P: proxy, W: ??
+ */
+ if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
+ (void)snprintf(flgbuf, sizeof(flgbuf), "%s%s",
+ isrouter ? "R" : "",
+ (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
+ } else {
+ mysin = (struct sockaddr_in6 *)(void *)
+ (sdl->sdl_len + (char *)(void *)sdl);
+#if 0 /* W and P are mystery even for us */
+ (void)snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s",
+ isrouter ? "R" : "",
+ !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr) ? "P" : "",
+ (sin->sin6_len != sizeof(struct sockaddr_in6)) ? "W" : "",
+ (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
+#else
+ (void)snprintf(flgbuf, sizeof(flgbuf), "%s%s",
+ isrouter ? "R" : "",
+ (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
+#endif
+ }
+ (void)printf(" %s", flgbuf);
+
+ if (prbs)
+ (void)printf(" %d", prbs);
+
+ (void)printf("\n");
+ }
+ if (buf != NULL)
+ free(buf);
+
+ if (repeat) {
+ (void)printf("\n");
+ (void)fflush(stdout);
+ (void)sleep(repeat);
+ goto again;
+ }
+}
+
+static struct in6_nbrinfo *
+getnbrinfo(struct in6_addr *addr, unsigned int ifindex, int warning)
+{
+ static struct in6_nbrinfo nbi;
+ int s;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ (void)memset(&nbi, 0, sizeof(nbi));
+ (void)if_indextoname(ifindex, nbi.ifname);
+ nbi.addr = *addr;
+ if (prog_ioctl(s, SIOCGNBRINFO_IN6, &nbi) < 0) {
+ if (warning)
+ warn("ioctl(SIOCGNBRINFO_IN6)");
+ (void)prog_close(s);
+ return(NULL);
+ }
+
+ (void)prog_close(s);
+ return(&nbi);
+}
+
+static char *
+ether_str(struct sockaddr_dl *sdl)
+{
+ static char hbuf[NI_MAXHOST];
+
+ if (sdl->sdl_alen) {
+ if (getnameinfo((struct sockaddr *)(void *)sdl,
+ (socklen_t)sdl->sdl_len,
+ hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
+ (void)snprintf(hbuf, sizeof(hbuf), "<invalid>");
+ } else
+ (void)snprintf(hbuf, sizeof(hbuf), "(incomplete)");
+
+ return(hbuf);
+}
+
+static int
+ndp_ether_aton(char *a, u_char *n)
+{
+ int i, o[6];
+
+ i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2],
+ &o[3], &o[4], &o[5]);
+ if (i != 6) {
+ warnx("invalid Ethernet address '%s'", a);
+ return (1);
+ }
+ for (i = 0; i < 6; i++)
+ n[i] = o[i];
+ return (0);
+}
+
+static void
+usage(void)
+{
+ const char *pn = getprogname();
+
+ (void)fprintf(stderr, "Usage: %s [-nt] hostname\n", pn);
+ (void)fprintf(stderr,
+ " %s [-nt] -a | -c | -p | -r | -H | -P | -R\n", pn);
+ (void)fprintf(stderr, " %s [-nt] -A wait\n", pn);
+ (void)fprintf(stderr, " %s [-nt] -d hostname\n", pn);
+ (void)fprintf(stderr, " %s [-nt] -f filename\n", pn);
+ (void)fprintf(stderr, " %s [-nt] -i interface [flags...]\n", pn);
+#ifdef SIOCSDEFIFACE_IN6
+ (void)fprintf(stderr, " %s [-nt] -I [interface|delete]\n", pn);
+#endif
+ (void)fprintf(stderr,
+ " %s [-nt] -s nodename etheraddr [temp] [proxy]\n", pn);
+ exit(1);
+}
+
+static int
+rtmsg(int cmd)
+{
+ static int seq;
+ register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
+ register char *cp = m_rtmsg.m_space;
+ register int l;
+
+ errno = 0;
+ if (cmd == RTM_DELETE)
+ goto doit;
+ (void)memset(&m_rtmsg, 0, sizeof(m_rtmsg));
+ rtm->rtm_flags = flags;
+ rtm->rtm_version = RTM_VERSION;
+
+ switch (cmd) {
+ default:
+ errx(1, "internal wrong cmd");
+ /*NOTREACHED*/
+ case RTM_ADD:
+ rtm->rtm_addrs |= RTA_GATEWAY;
+ if (expire_time) {
+ rtm->rtm_rmx.rmx_expire = expire_time;
+ rtm->rtm_inits = RTV_EXPIRE;
+ }
+ rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
+#ifdef notdef /* we don't support ipv6addr/128 type proxying. */
+ if (rtm->rtm_flags & RTF_ANNOUNCE) {
+ rtm->rtm_flags &= ~RTF_HOST;
+ rtm->rtm_addrs |= RTA_NETMASK;
+ }
+#endif
+ /* FALLTHROUGH */
+ case RTM_GET:
+ rtm->rtm_addrs |= RTA_DST;
+ }
+#define NEXTADDR(w, s) \
+ if (rtm->rtm_addrs & (w)) { \
+ (void)memcpy(cp, &s, sizeof(s)); \
+ RT_ADVANCE(cp, (struct sockaddr *)(void *)&s); \
+ }
+
+ NEXTADDR(RTA_DST, sin_m);
+ NEXTADDR(RTA_GATEWAY, sdl_m);
+#ifdef notdef /* we don't support ipv6addr/128 type proxying. */
+ (void)memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
+ NEXTADDR(RTA_NETMASK, so_mask);
+#endif
+
+ rtm->rtm_msglen = cp - (char *)(void *)&m_rtmsg;
+doit:
+ l = rtm->rtm_msglen;
+ rtm->rtm_seq = ++seq;
+ rtm->rtm_type = cmd;
+#ifdef __minix
+ /*
+ * Borrow from the future by setting the "this is a link-local request"
+ * flag on all routing socket requests. IMPORTANT: this change may be
+ * dropped with the resync to NetBSD 8 as it will do the same thing,
+ * although slightly differently (and hence may not create a conflict).
+ */
+ rtm->rtm_flags |= RTF_LLDATA;
+#endif /* __minix */
+ if (prog_write(my_s, &m_rtmsg, (size_t)l) == -1) {
+ if (errno != ESRCH || cmd != RTM_DELETE)
+ err(1, "writing to routing socket");
+ }
+ do {
+ l = prog_read(my_s, &m_rtmsg, sizeof(m_rtmsg));
+ } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
+ if (l < 0)
+ warn("read from routing socket");
+ return (0);
+}
+
+static void
+ifinfo(char *ifname, int argc, char **argv)
+{
+ struct in6_ndireq nd;
+ int i, s;
+ u_int32_t newflags;
+#ifdef IPV6CTL_USETEMPADDR
+ u_int8_t nullbuf[8];
+#endif
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ (void)memset(&nd, 0, sizeof(nd));
+ (void)strlcpy(nd.ifname, ifname, sizeof(nd.ifname));
+ if (prog_ioctl(s, SIOCGIFINFO_IN6, &nd) < 0)
+ err(1, "ioctl(SIOCGIFINFO_IN6)");
+#define ND nd.ndi
+ newflags = ND.flags;
+ for (i = 0; i < argc; i++) {
+ int clear = 0;
+ char *cp = argv[i];
+
+ if (*cp == '-') {
+ clear = 1;
+ cp++;
+ }
+
+#define SETFLAG(s, f) \
+ do {\
+ if (strcmp(cp, (s)) == 0) {\
+ if (clear)\
+ newflags &= ~(f);\
+ else\
+ newflags |= (f);\
+ }\
+ } while (/*CONSTCOND*/0)
+/*
+ * XXX: this macro is not 100% correct, in that it matches "nud" against
+ * "nudbogus". But we just let it go since this is minor.
+ */
+#define SETVALUE(f, v) \
+ do { \
+ char *valptr; \
+ unsigned long newval; \
+ v = 0; /* unspecified */ \
+ if (strncmp(cp, f, strlen(f)) == 0) { \
+ valptr = strchr(cp, '='); \
+ if (valptr == NULL) \
+ err(1, "syntax error in %s field", (f)); \
+ errno = 0; \
+ newval = strtoul(++valptr, NULL, 0); \
+ if (errno) \
+ err(1, "syntax error in %s's value", (f)); \
+ v = newval; \
+ } \
+ } while (/*CONSTCOND*/0)
+
+#ifdef ND6_IFF_IFDISABLED
+ SETFLAG("disabled", ND6_IFF_IFDISABLED);
+#endif
+ SETFLAG("nud", ND6_IFF_PERFORMNUD);
+#ifdef ND6_IFF_ACCEPT_RTADV
+ SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
+#endif
+#ifdef ND6_IFF_OVERRIDE_RTADV
+ SETFLAG("override_rtadv", ND6_IFF_OVERRIDE_RTADV);
+#endif
+#ifdef ND6_IFF_AUTO_LINKLOCAL
+ SETFLAG("auto_linklocal", ND6_IFF_AUTO_LINKLOCAL);
+#endif
+#ifdef ND6_IFF_PREFER_SOURCE
+ SETFLAG("prefer_source", ND6_IFF_PREFER_SOURCE);
+#endif
+#ifdef ND6_IFF_DONT_SET_IFROUTE
+ SETFLAG("dont_set_ifroute", ND6_IFF_DONT_SET_IFROUTE);
+#endif
+ SETVALUE("basereachable", ND.basereachable);
+ SETVALUE("retrans", ND.retrans);
+ SETVALUE("curhlim", ND.chlim);
+
+ ND.flags = newflags;
+#ifdef SIOCSIFINFO_IN6
+ if (prog_ioctl(s, SIOCSIFINFO_IN6, &nd) < 0)
+ err(1, "ioctl(SIOCSIFINFO_IN6)");
+#else
+ if (prog_ioctl(s, SIOCSIFINFO_FLAGS, &nd) < 0)
+ err(1, "ioctl(SIOCSIFINFO_FLAGS)");
+#endif
+#undef SETFLAG
+#undef SETVALUE
+ }
+
+ if (!ND.initialized)
+ errx(1, "%s: not initialized yet", ifname);
+
+ if (prog_ioctl(s, SIOCGIFINFO_IN6, &nd) < 0)
+ err(1, "ioctl(SIOCGIFINFO_IN6)");
+ (void)printf("linkmtu=%d", ND.linkmtu);
+ (void)printf(", maxmtu=%d", ND.maxmtu);
+ (void)printf(", curhlim=%d", ND.chlim);
+ (void)printf(", basereachable=%ds%dms",
+ ND.basereachable / 1000, ND.basereachable % 1000);
+ (void)printf(", reachable=%ds", ND.reachable);
+ (void)printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
+#ifdef IPV6CTL_USETEMPADDR
+ (void)memset(nullbuf, 0, sizeof(nullbuf));
+ if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) {
+ int j;
+ u_int8_t *rbuf;
+
+ for (i = 0; i < 3; i++) {
+ switch (i) {
+ case 0:
+ (void)printf("\nRandom seed(0): ");
+ rbuf = ND.randomseed0;
+ break;
+ case 1:
+ (void)printf("\nRandom seed(1): ");
+ rbuf = ND.randomseed1;
+ break;
+ case 2:
+ (void)printf("\nRandom ID: ");
+ rbuf = ND.randomid;
+ break;
+ default:
+ errx(1, "impossible case for tempaddr display");
+ }
+ for (j = 0; j < 8; j++)
+ (void)printf("%02x", rbuf[j]);
+ }
+ }
+#endif
+ if (ND.flags) {
+ (void)printf("\nFlags: ");
+ if ((ND.flags & ND6_IFF_PERFORMNUD))
+ (void)printf("nud ");
+#ifdef ND6_IFF_IFDISABLED
+ if ((ND.flags & ND6_IFF_IFDISABLED))
+ (void)printf("disabled ");
+#endif
+#ifdef ND6_IFF_ACCEPT_RTADV
+ if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
+ (void)printf("accept_rtadv ");
+#endif
+#ifdef ND6_IFF_OVERRIDE_RTADV
+ if ((ND.flags & ND6_IFF_OVERRIDE_RTADV))
+ (void)printf("override_rtadv ");
+#endif
+#ifdef ND6_IFF_AUTO_LINKLOCAL
+ if ((ND.flags & ND6_IFF_AUTO_LINKLOCAL))
+ (void)printf("auto_linklocal ");
+#endif
+#ifdef ND6_IFF_PREFER_SOURCE
+ if ((ND.flags & ND6_IFF_PREFER_SOURCE))
+ (void)printf("prefer_source ");
+#endif
+ }
+ (void)putc('\n', stdout);
+#undef ND
+
+ (void)prog_close(s);
+}
+
+#ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */
+#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
+#endif
+
+static void
+rtrlist(void)
+{
+#ifdef ICMPV6CTL_ND6_DRLIST
+ int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
+ char *buf;
+ struct in6_defrouter *p, *ep;
+ size_t l;
+ struct timeval tim;
+
+ if (prog_sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
+ /*NOTREACHED*/
+ }
+ if (l == 0)
+ return;
+ buf = malloc(l);
+ if (!buf) {
+ err(1, "malloc");
+ /*NOTREACHED*/
+ }
+ if (prog_sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
+ /*NOTREACHED*/
+ }
+
+ ep = (struct in6_defrouter *)(void *)(buf + l);
+ for (p = (struct in6_defrouter *)(void *)buf; p < ep; p++) {
+ int rtpref;
+
+ if (getnameinfo((struct sockaddr *)(void *)&p->rtaddr,
+ (socklen_t)p->rtaddr.sin6_len, host_buf, sizeof(host_buf),
+ NULL, 0, (nflag ? NI_NUMERICHOST : 0)) != 0)
+ (void)strlcpy(host_buf, "?", sizeof(host_buf));
+
+ (void)printf("%s if=%s", host_buf,
+ if_indextoname((unsigned int)p->if_index, ifix_buf));
+ (void)printf(", flags=%s%s",
+ p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
+ p->flags & ND_RA_FLAG_OTHER ? "O" : "");
+ rtpref = ((uint32_t)(p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
+ (void)printf(", pref=%s", rtpref_str[rtpref]);
+
+ (void)gettimeofday(&tim, 0);
+ if (p->expire == 0)
+ (void)printf(", expire=Never\n");
+ else
+ (void)printf(", expire=%s\n",
+ sec2str((time_t)(p->expire - tim.tv_sec)));
+ }
+ free(buf);
+#else
+ struct in6_drlist dr;
+ int s, i;
+ struct timeval time;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ err(1, "socket");
+ /* NOTREACHED */
+ }
+ (void)memset(&dr, 0, sizeof(dr));
+ (void)strlcpy(dr.ifname, "lo0", sizeof(dr.ifname)); /* dummy */
+ if (prog_ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
+ err(1, "ioctl(SIOCGDRLST_IN6)");
+ /* NOTREACHED */
+ }
+#define DR dr.defrouter[i]
+ for (i = 0 ; DR.if_index && i < DRLSTSIZ ; i++) {
+ struct sockaddr_in6 sin6;
+
+ (void)memset(&sin6, 0, sizeof(sin6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_len = sizeof(sin6);
+ sin6.sin6_addr = DR.rtaddr;
+ (void)getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
+ host_buf, sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0));
+
+ (void)printf("%s if=%s", host_buf,
+ if_indextoname(DR.if_index, ifix_buf));
+ (void)printf(", flags=%s%s",
+ DR.flags & ND_RA_FLAG_MANAGED ? "M" : "",
+ DR.flags & ND_RA_FLAG_OTHER ? "O" : "");
+ gettimeofday(&time, 0);
+ if (DR.expire == 0)
+ (void)printf(", expire=Never\n");
+ else
+ (void)printf(", expire=%s\n",
+ sec2str(DR.expire - time.tv_sec));
+ }
+#undef DR
+ (void)prog_close(s);
+#endif
+}
+
+static void
+plist(void)
+{
+#ifdef ICMPV6CTL_ND6_PRLIST
+ int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
+ char *buf, *p, *ep;
+ struct in6_prefix pfx;
+ size_t l;
+ struct timeval tim;
+ const int niflags = NI_NUMERICHOST;
+ int ninflags = nflag ? NI_NUMERICHOST : 0;
+ char namebuf[NI_MAXHOST];
+
+ if (prog_sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
+ /*NOTREACHED*/
+ }
+ buf = malloc(l);
+ if (!buf) {
+ err(1, "malloc");
+ /*NOTREACHED*/
+ }
+ if (prog_sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
+ /*NOTREACHED*/
+ }
+
+ ep = buf + l;
+ for (p = buf; p < ep; ) {
+ memcpy(&pfx, p, sizeof(pfx));
+ p += sizeof(pfx);
+
+ if (getnameinfo((struct sockaddr*)&pfx.prefix,
+ (socklen_t)pfx.prefix.sin6_len, namebuf, sizeof(namebuf),
+ NULL, 0, niflags) != 0)
+ (void)strlcpy(namebuf, "?", sizeof(namebuf));
+ (void)printf("%s/%d if=%s\n", namebuf, pfx.prefixlen,
+ if_indextoname((unsigned int)pfx.if_index, ifix_buf));
+
+ (void)gettimeofday(&tim, 0);
+ /*
+ * meaning of fields, especially flags, is very different
+ * by origin. notify the difference to the users.
+ */
+ (void)printf("flags=%s%s%s%s%s",
+ pfx.raflags.onlink ? "L" : "",
+ pfx.raflags.autonomous ? "A" : "",
+ (pfx.flags & NDPRF_ONLINK) != 0 ? "O" : "",
+ (pfx.flags & NDPRF_DETACHED) != 0 ? "D" : "",
+#ifdef NDPRF_HOME
+ (pfx.flags & NDPRF_HOME) != 0 ? "H" : ""
+#else
+ ""
+#endif
+ );
+ if (pfx.vltime == ND6_INFINITE_LIFETIME)
+ (void)printf(" vltime=infinity");
+ else
+ (void)printf(" vltime=%lu", (unsigned long)pfx.vltime);
+ if (pfx.pltime == ND6_INFINITE_LIFETIME)
+ (void)printf(", pltime=infinity");
+ else
+ (void)printf(", pltime=%lu", (unsigned long)pfx.pltime);
+ if (pfx.expire == 0)
+ (void)printf(", expire=Never");
+ else if (pfx.expire >= tim.tv_sec)
+ (void)printf(", expire=%s",
+ sec2str(pfx.expire - tim.tv_sec));
+ else
+ (void)printf(", expired");
+ (void)printf(", ref=%d", pfx.refcnt);
+ (void)printf("\n");
+ /*
+ * "advertising router" list is meaningful only if the prefix
+ * information is from RA.
+ */
+ if (pfx.advrtrs) {
+ int j;
+ struct sockaddr_in6 sin6;
+
+ (void)printf(" advertised by\n");
+ for (j = 0; j < pfx.advrtrs && p <= ep; j++) {
+ struct in6_nbrinfo *nbi;
+
+ memcpy(&sin6, p, sizeof(sin6));
+ p += sizeof(sin6);
+
+ if (getnameinfo((struct sockaddr *)&sin6,
+ (socklen_t)sin6.sin6_len, namebuf,
+ sizeof(namebuf), NULL, 0, ninflags) != 0)
+ (void)strlcpy(namebuf, "?", sizeof(namebuf));
+ (void)printf(" %s", namebuf);
+
+ nbi = getnbrinfo(&sin6.sin6_addr,
+ (unsigned int)pfx.if_index, 0);
+ if (nbi) {
+ switch (nbi->state) {
+ case ND6_LLINFO_REACHABLE:
+ case ND6_LLINFO_STALE:
+ case ND6_LLINFO_DELAY:
+ case ND6_LLINFO_PROBE:
+ (void)printf(" (reachable)\n");
+ break;
+ default:
+ (void)printf(" (unreachable)\n");
+ }
+ } else
+ (void)printf(" (no neighbor state)\n");
+ }
+ } else
+ (void)printf(" No advertising router\n");
+ }
+ free(buf);
+#else
+ struct in6_prlist pr;
+ int s, i;
+ struct timeval time;
+
+ (void)gettimeofday(&time, 0);
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ err(1, "socket");
+ /* NOTREACHED */
+ }
+ (void)memset(&pr, 0, sizeof(pr));
+ (void)strlcpy(pr.ifname, "lo0", sizeof(pr.ifname)); /* dummy */
+ if (prog_ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
+ err(1, "ioctl(SIOCGPRLST_IN6)");
+ /* NOTREACHED */
+ }
+#define PR pr.prefix[i]
+ for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) {
+ struct sockaddr_in6 p6;
+ char namebuf[NI_MAXHOST];
+ int niflags;
+
+#ifdef NDPRF_ONLINK
+ p6 = PR.prefix;
+#else
+ (void)memset(&p6, 0, sizeof(p6));
+ p6.sin6_family = AF_INET6;
+ p6.sin6_len = sizeof(p6);
+ p6.sin6_addr = PR.prefix;
+#endif
+
+ niflags = NI_NUMERICHOST;
+ if (getnameinfo((struct sockaddr *)&p6,
+ sizeof(p6), namebuf, sizeof(namebuf),
+ NULL, 0, niflags)) {
+ warnx("getnameinfo failed");
+ continue;
+ }
+ (void)printf("%s/%d if=%s\n", namebuf, PR.prefixlen,
+ if_indextoname(PR.if_index, ifix_buf));
+
+ (void)gettimeofday(&time, 0);
+ /*
+ * meaning of fields, especially flags, is very different
+ * by origin. notify the difference to the users.
+ */
+#if 0
+ (void)printf(" %s",
+ PR.origin == PR_ORIG_RA ? "" : "advertise: ");
+#endif
+#ifdef NDPRF_ONLINK
+ (void)printf("flags=%s%s%s%s%s",
+ PR.raflags.onlink ? "L" : "",
+ PR.raflags.autonomous ? "A" : "",
+ (PR.flags & NDPRF_ONLINK) != 0 ? "O" : "",
+ (PR.flags & NDPRF_DETACHED) != 0 ? "D" : "",
+#ifdef NDPRF_HOME
+ (PR.flags & NDPRF_HOME) != 0 ? "H" : ""
+#else
+ ""
+#endif
+ );
+#else
+ (void)printf("flags=%s%s",
+ PR.raflags.onlink ? "L" : "",
+ PR.raflags.autonomous ? "A" : "");
+#endif
+ if (PR.vltime == ND6_INFINITE_LIFETIME)
+ (void)printf(" vltime=infinity");
+ else
+ (void)printf(" vltime=%lu", PR.vltime);
+ if (PR.pltime == ND6_INFINITE_LIFETIME)
+ (void)printf(", pltime=infinity");
+ else
+ (void)printf(", pltime=%lu", PR.pltime);
+ if (PR.expire == 0)
+ (void)printf(", expire=Never");
+ else if (PR.expire >= time.tv_sec)
+ (void)printf(", expire=%s",
+ sec2str(PR.expire - time.tv_sec));
+ else
+ (void)printf(", expired");
+#ifdef NDPRF_ONLINK
+ (void)printf(", ref=%d", PR.refcnt);
+#endif
+#if 0
+ switch (PR.origin) {
+ case PR_ORIG_RA:
+ (void)printf(", origin=RA");
+ break;
+ case PR_ORIG_RR:
+ (void)printf(", origin=RR");
+ break;
+ case PR_ORIG_STATIC:
+ (void)printf(", origin=static");
+ break;
+ case PR_ORIG_KERNEL:
+ (void)printf(", origin=kernel");
+ break;
+ default:
+ (void)printf(", origin=?");
+ break;
+ }
+#endif
+ (void)printf("\n");
+ /*
+ * "advertising router" list is meaningful only if the prefix
+ * information is from RA.
+ */
+ if (0 && /* prefix origin is almost obsolted */
+ PR.origin != PR_ORIG_RA)
+ ;
+ else if (PR.advrtrs) {
+ int j;
+ (void)printf(" advertised by\n");
+ for (j = 0; j < PR.advrtrs; j++) {
+ struct sockaddr_in6 sin6;
+ struct in6_nbrinfo *nbi;
+
+ bzero(&sin6, sizeof(sin6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_len = sizeof(sin6);
+ sin6.sin6_addr = PR.advrtr[j];
+ sin6.sin6_scope_id = PR.if_index; /* XXX */
+ (void)getnameinfo((struct sockaddr *)&sin6,
+ sin6.sin6_len, host_buf,
+ sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0));
+ (void)printf(" %s", host_buf);
+
+ nbi = getnbrinfo(&sin6.sin6_addr,
+ PR.if_index, 0);
+ if (nbi) {
+ switch (nbi->state) {
+ case ND6_LLINFO_REACHABLE:
+ case ND6_LLINFO_STALE:
+ case ND6_LLINFO_DELAY:
+ case ND6_LLINFO_PROBE:
+ (void)printf(" (reachable)\n");
+ break;
+ default:
+ (void)printf(" (unreachable)\n");
+ }
+ } else
+ (void)printf(" (no neighbor state)\n");
+ }
+ if (PR.advrtrs > DRLSTSIZ)
+ (void)printf(" and %d routers\n",
+ PR.advrtrs - DRLSTSIZ);
+ } else
+ (void)printf(" No advertising router\n");
+ }
+#undef PR
+ (void)prog_close(s);
+#endif
+}
+
+static void
+pfx_flush(void)
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ (void)strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (prog_ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
+ (void)prog_close(s);
+}
+
+static void
+rtr_flush(void)
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ (void)strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (prog_ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
+
+ (void)prog_close(s);
+}
+
+static void
+harmonize_rtr(void)
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ (void)strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (prog_ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSNDFLUSH_IN6)");
+
+ (void)prog_close(s);
+}
+
+#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
+static void
+setdefif(char *ifname)
+{
+ struct in6_ndifreq ndifreq;
+ unsigned int ifindex;
+ int s;
+
+ if (strcasecmp(ifname, "delete") == 0)
+ ifindex = 0;
+ else {
+ if ((ifindex = if_nametoindex(ifname)) == 0)
+ err(1, "failed to resolve i/f index for %s", ifname);
+ }
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ (void)strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
+ ndifreq.ifindex = ifindex;
+
+ if (prog_ioctl(s, SIOCSDEFIFACE_IN6, &ndifreq) < 0)
+ err(1, "ioctl(SIOCSDEFIFACE_IN6)");
+
+ (void)prog_close(s);
+}
+
+static void
+getdefif(void)
+{
+ struct in6_ndifreq ndifreq;
+ char ifname[IFNAMSIZ+8];
+ int s;
+
+ if ((s = prog_socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ (void)memset(&ndifreq, 0, sizeof(ndifreq));
+ (void)strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
+
+ if (prog_ioctl(s, SIOCGDEFIFACE_IN6, &ndifreq) < 0)
+ err(1, "ioctl(SIOCGDEFIFACE_IN6)");
+
+ if (ndifreq.ifindex == 0)
+ (void)printf("No default interface.\n");
+ else {
+ if ((if_indextoname((unsigned int)ndifreq.ifindex, ifname)) == NULL)
+ err(1, "failed to resolve ifname for index %lu",
+ ndifreq.ifindex);
+ (void)printf("ND default interface = %s\n", ifname);
+ }
+
+ (void)prog_close(s);
+}
+#endif
+
+static const char *
+sec2str(time_t total)
+{
+ static char result[256];
+ int days, hours, mins, secs;
+ int first = 1;
+ char *p = result;
+ char *ep = &result[sizeof(result)];
+ int n;
+
+ days = total / 3600 / 24;
+ hours = (total / 3600) % 24;
+ mins = (total / 60) % 60;
+ secs = total % 60;
+
+ if (days) {
+ first = 0;
+ n = snprintf(p, (size_t)(ep - p), "%dd", days);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ if (!first || hours) {
+ first = 0;
+ n = snprintf(p, (size_t)(ep - p), "%dh", hours);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ if (!first || mins) {
+ first = 0;
+ n = snprintf(p, (size_t)(ep - p), "%dm", mins);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ (void)snprintf(p, (size_t)(ep - p), "%ds", secs);
+
+ return(result);
+}
+
+/*
+ * Print the timestamp
+ * from tcpdump/util.c
+ */
+static void
+ts_print(const struct timeval *tvp)
+{
+ int s;
+
+ /* Default */
+ s = (tvp->tv_sec + thiszone) % 86400;
+ (void)printf("%02d:%02d:%02d.%06u ",
+ s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);
+}