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-rw-r--r--usr.sbin/ndp/Makefile27
-rw-r--r--usr.sbin/ndp/Makefile.depend19
-rw-r--r--usr.sbin/ndp/ndp.8313
-rw-r--r--usr.sbin/ndp/ndp.c1375
4 files changed, 1734 insertions, 0 deletions
diff --git a/usr.sbin/ndp/Makefile b/usr.sbin/ndp/Makefile
new file mode 100644
index 0000000..552ac53
--- /dev/null
+++ b/usr.sbin/ndp/Makefile
@@ -0,0 +1,27 @@
+# Copyright (c) 1996 WIDE Project. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modifications, are permitted provided that the above copyright notice
+# and this paragraph are duplicated in all such forms and that any
+# documentation, advertising materials, and other materials related to
+# such distribution and use acknowledge that the software was developed
+# by the WIDE Project, Japan. The name of the Project may not be used to
+# endorse or promote products derived from this software without
+# specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS''
+# AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
+# LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE.
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../contrib/tcpdump
+
+PROG= ndp
+MAN= ndp.8
+SRCS= ndp.c gmt2local.c
+
+CFLAGS+= -I. -I${.CURDIR} -I${.CURDIR}/../../contrib/tcpdump
+CFLAGS+= -D_U_=""
+
+WARNS?= 1
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/ndp/Makefile.depend b/usr.sbin/ndp/Makefile.depend
new file mode 100644
index 0000000..54c1f6f
--- /dev/null
+++ b/usr.sbin/ndp/Makefile.depend
@@ -0,0 +1,19 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+ gnu/lib/csu \
+ gnu/lib/libgcc \
+ include \
+ include/arpa \
+ include/xlocale \
+ lib/${CSU_DIR} \
+ lib/libc \
+ lib/libcompiler_rt \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
diff --git a/usr.sbin/ndp/ndp.8 b/usr.sbin/ndp/ndp.8
new file mode 100644
index 0000000..c2a4c1d
--- /dev/null
+++ b/usr.sbin/ndp/ndp.8
@@ -0,0 +1,313 @@
+.\" $KAME: ndp.8,v 1.28 2002/07/17 08:46:33 itojun Exp $
+.\"
+.\" Copyright (C) 1995, 1996, 1997, and 1998 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd May 9, 2014
+.Dt NDP 8
+.Os
+.\"
+.Sh NAME
+.Nm ndp
+.Nd control/diagnose IPv6 neighbor discovery protocol
+.\"
+.Sh SYNOPSIS
+.Nm
+.Op Fl nt
+.Ar hostname
+.Nm
+.Op Fl nt
+.Fl a | c | p
+.Nm
+.Op Fl nt
+.Fl r
+.Nm
+.Op Fl nt
+.Fl H | P | R
+.Nm
+.Op Fl nt
+.Fl A Ar wait
+.Nm
+.Op Fl nt
+.Fl d Ar hostname
+.Nm
+.Op Fl nt
+.Fl f Ar filename
+.Nm
+.Op Fl nt
+.Fl i
+.Ar interface
+.Op Ar expressions ...
+.Nm
+.Op Fl nt
+.Fl I Op Ar interface | Li delete
+.Nm
+.Op Fl nt
+.Fl s Ar nodename etheraddr
+.Op Li temp
+.Op Li proxy
+.\"
+.Sh DESCRIPTION
+The
+.Nm
+utility manipulates the address mapping table
+used by the Neighbor Discovery Protocol (NDP).
+.Bl -tag -width indent
+.It Fl a
+Dump the currently existing NDP entries.
+The following information will be printed:
+.Bl -tag -width "Neighbor"
+.It Neighbor
+IPv6 address of the neighbor.
+.It Linklayer Address
+Linklayer address of the neighbor.
+It could be
+.Dq Li (incomplete)
+when the address is not available.
+.It Netif
+Network interface associated with the neighbor cache entry.
+.It Expire
+The time until expiry of the entry.
+The entry could become
+.Dq Li permanent ,
+in which case it will never expire.
+.It S
+State of the neighbor cache entry, as a single letter:
+.Pp
+.Bl -tag -width indent -compact
+.It N
+Nostate
+.It W
+Waitdelete
+.It I
+Incomplete
+.It R
+Reachable
+.It S
+Stale
+.It D
+Delay
+.It P
+Probe
+.It ?\&
+Unknown state (should never happen).
+.El
+.It Flags
+Flags on the neighbor cache entry, in a single letter.
+They are: Router, proxy neighbor advertisement
+.Pq Dq p .
+The field could be followed by a decimal number,
+which means the number of NS probes the node has sent during the current state.
+.El
+.It Fl A Ar wait
+Repeat
+.Fl a
+(dump NDP entries)
+every
+.Ar wait
+seconds.
+.It Fl c
+Erase all the NDP entries.
+.It Fl d
+Delete specified NDP entry.
+.It Fl f Ar filename
+Cause the file
+.Ar filename
+to be read and multiple entries to be set in the
+.Tn NDP
+table.
+Entries
+in the file should be of the form
+.Pp
+.Bd -ragged -offset indent -compact
+.Ar hostname ether_addr
+.Op Cm temp
+.Op Cm proxy
+.Ed
+.Pp
+with argument meanings as given above.
+Leading whitespace and empty lines are ignored.
+A
+.Ql #
+character will mark the rest of the line as a comment.
+.It Fl H
+Harmonize consistency between the routing table and the default router
+list; install the top entry of the list into the kernel routing table.
+.It Fl I
+Shows the default interface used as the default route when
+there is no default router.
+.It Fl I Ar interface
+Specifies the default interface used as the default route when
+there is no default router.
+The
+.Ar interface
+will be used as the default.
+.It Fl I Li delete
+The current default interface will be deleted from the kernel.
+.It Fl i Ar interface Op Ar expressions ...
+View ND information for the specified interface.
+If additional arguments
+.Ar expressions
+are given,
+.Nm
+sets or clears the flags or variables for the interface as specified in
+the expression.
+Each expression should be separated by white spaces or tab characters.
+Possible expressions are as follows.
+Some of the expressions can begin with the
+special character
+.Ql - ,
+which means the flag specified in the expression should be cleared.
+Note that you need
+.Fl -
+before
+.Fl foo
+in this case.
+.\"
+.Bl -tag -width indent
+.It Ic nud
+Turn on or off NUD (Neighbor Unreachability Detection) on the
+interface.
+NUD is usually turned on by default.
+.It Ic accept_rtadv
+Specify whether or not to accept Router Advertisement messages
+received on the
+.Ar interface .
+This flag is set by
+.Va net.inet6.ip6.accept_rtadv
+sysctl variable.
+.It Ic auto_linklocal
+Specify whether or not to perform automatic link-local address configuration
+on
+.Ar interface .
+This flag is set by
+.Va net.inet6.ip6.auto_linklocal
+sysctl variable.
+.It Ic no_prefer_iface
+The address on the outgoing interface is preferred by source addess
+selection rule.
+If this flag is set, stop treating the address on the
+.Ar interface
+as special even when the
+.Ar interface
+is outgoing interface.
+The default value of this flag is off.
+.It Ic disabled
+Disable IPv6 operation on the interface.
+When disabled, the interface discards any IPv6 packets
+received on or being sent to the interface.
+In the sending case, an error of ENETDOWN will be returned to the
+application.
+This flag is typically set automatically in the kernel as a result of
+a certain failure of Duplicate Address Detection.
+If the auto_linklocal per-interface flag is set, automatic link-local
+address configuration is performed again when this flag is cleared.
+.It Ic basereachable Ns Li = Ns Pq Ar number
+Specify the BaseReachbleTimer on the interface in millisecond.
+.It Ic retrans Ns Li = Ns Pq Ar number
+Specify the RetransTimer on the interface in millisecond.
+.It Ic curhlim Ns Li = Ns Pq Ar number
+Specify the Cur Hop Limit on the interface.
+.El
+.It Fl n
+Do not try to resolve numeric addresses to hostnames.
+.It Fl p
+Show prefix list.
+The following information will be printed:
+.Bl -tag -width indent
+.It Cm if
+The network interface associated with this prefix.
+.It Cm flags
+The status of the prefix, expressed by a combination of the following
+letters:
+.Pp
+.Bl -tag -width indent -compact
+.It Cm A
+This prefix can be used for stateless address autoconfiguration.
+.It Cm L, Cm O
+This prefix can be used for on-link determination; that is, it can be
+used to determine whether a given destination address is on-link.
+.It Cm D
+There are no reachable routers advertising this prefix.
+.El
+.It Cm vltime
+Valid lifetime; the length of time for which the prefix and a stateless
+autoconfigured address generated from this prefix can be used for the
+source or destination address of a packet.
+.It Cm pltime
+Preferred lifetime; the length of time for which the prefix and a stateless
+autoconfigured address generated from this prefix can be used by upper-layer
+protocols unrestrictedly.
+.It Cm expire
+This is the remaining time that the prefix is in the valid state.
+.It Cm ref
+The number of kernel references held for this prefix.
+.El
+.It Fl P
+Flush all the entries in the prefix list.
+.It Fl r
+Show default router list.
+.It Fl R
+Flush all the entries in the default router list.
+.It Fl s
+Register an NDP entry for a node.
+The entry will be permanent unless the word
+.Li temp
+is given in the command.
+If the word
+.Li proxy
+is given, this system will act as a proxy NDP server,
+responding to requests for
+.Ar hostname
+even though the host address is not its own.
+.It Fl t
+Print timestamp for each entry,
+to make it possible to merge the output with
+.Xr tcpdump 1 .
+Most useful when used with
+.Fl A .
+.El
+.\"
+.Sh EXIT STATUS
+.Ex -std
+.\"
+.Sh SEE ALSO
+.Xr arp 8
+.\"
+.Sh HISTORY
+The
+.Nm
+utility first appeared in the WIDE Hydrangea IPv6 protocol stack kit.
+The
+.Fl I Ar auto_linklocal
+flag first appeared in
+.Fx 8.0 .
+.\"
+.\" .Sh BUGS
+.\" (to be written)
diff --git a/usr.sbin/ndp/ndp.c b/usr.sbin/ndp/ndp.c
new file mode 100644
index 0000000..cf80149
--- /dev/null
+++ b/usr.sbin/ndp/ndp.c
@@ -0,0 +1,1375 @@
+/* $FreeBSD$ */
+/* $KAME: ndp.c,v 1.104 2003/06/27 07:48:39 itojun 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.
+ * 4. 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 <sys/queue.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/if_ether.h>
+
+#include <netinet/icmp6.h>
+#include <netinet6/in6_var.h>
+#include <netinet6/nd6.h>
+
+#include <arpa/inet.h>
+
+#include <ctype.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"
+
+#define NEXTADDR(w, s) \
+ if (rtm->rtm_addrs & (w)) { \
+ bcopy((char *)&s, cp, sizeof(s)); cp += SA_SIZE(&s);}
+
+
+static pid_t pid;
+static int nflag;
+static int tflag;
+static int32_t thiszone; /* time difference with gmt */
+static int s = -1;
+static int repeat = 0;
+
+static char host_buf[NI_MAXHOST]; /* getnameinfo() */
+static char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
+
+static int file(char *);
+static void getsocket(void);
+static int set(int, char **);
+static void get(char *);
+static int delete(char *);
+static void dump(struct sockaddr_in6 *, int);
+static struct in6_nbrinfo *getnbrinfo(struct in6_addr *, int, int);
+static char *ether_str(struct sockaddr_dl *);
+static int ndp_ether_aton(char *, u_char *);
+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 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 char *sec2str(time_t);
+static void ts_print(const struct timeval *);
+
+static char *rtpref_str[] = {
+ "medium", /* 00 */
+ "high", /* 01 */
+ "rsv", /* 10 */
+ "low" /* 11 */
+};
+
+int
+main(int argc, char **argv)
+{
+ int ch, mode = 0;
+ char *arg = NULL;
+
+ pid = getpid();
+ thiszone = gmt2local(0);
+ 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 'f':
+ exit(file(optarg) ? 1 : 0);
+ case 'd':
+ 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);
+ if (repeat < 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ break;
+ default:
+ usage();
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ switch (mode) {
+ case 'a':
+ case 'c':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ dump(0, mode == 'c');
+ break;
+ case 'd':
+ if (argc != 0) {
+ usage();
+ /*NOTREACHED*/
+ }
+ 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();
+ exit(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;
+ }
+ exit(0);
+}
+
+/*
+ * Process a file to set standard ndp entries
+ */
+static int
+file(char *name)
+{
+ FILE *fp;
+ int i, retval;
+ char line[100], arg[5][50], *args[5], *p;
+
+ if ((fp = fopen(name, "r")) == NULL)
+ err(1, "cannot open %s", name);
+ args[0] = &arg[0][0];
+ args[1] = &arg[1][0];
+ args[2] = &arg[2][0];
+ args[3] = &arg[3][0];
+ args[4] = &arg[4][0];
+ retval = 0;
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if ((p = strchr(line, '#')) != NULL)
+ *p = '\0';
+ for (p = line; isblank(*p); p++);
+ if (*p == '\n' || *p == '\0')
+ continue;
+ i = sscanf(line, "%49s %49s %49s %49s %49s",
+ arg[0], arg[1], arg[2], arg[3], arg[4]);
+ if (i < 2) {
+ warnx("bad line: %s", line);
+ retval = 1;
+ continue;
+ }
+ if (set(i, args))
+ retval = 1;
+ }
+ fclose(fp);
+ return (retval);
+}
+
+static void
+getsocket()
+{
+ if (s < 0) {
+ s = socket(PF_ROUTE, SOCK_RAW, 0);
+ if (s < 0) {
+ err(1, "socket");
+ /* NOTREACHED */
+ }
+ }
+}
+
+static struct sockaddr_in6 so_mask = {
+ .sin6_len = sizeof(so_mask),
+ .sin6_family = AF_INET6
+};
+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 time_t expire_time;
+static int 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 *sin = &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;
+
+ bzero(&hints, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ gai_error = getaddrinfo(host, NULL, &hints, &res);
+ if (gai_error) {
+ fprintf(stderr, "ndp: %s: %s\n", host,
+ gai_strerror(gai_error));
+ return 1;
+ }
+ sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
+ sin->sin6_scope_id =
+ ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
+ 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 now;
+
+ gettimeofday(&now, 0);
+ expire_time = now.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 */
+ }
+ sin = (struct sockaddr_in6 *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)(ALIGN(sin->sin6_len) + (char *)sin);
+ if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
+ if (sdl->sdl_family == AF_LINK &&
+ !(rtm->rtm_flags & RTF_GATEWAY)) {
+ switch (sdl->sdl_type) {
+ case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
+ case IFT_ISO88024: case IFT_ISO88025:
+ case IFT_L2VLAN: case IFT_BRIDGE:
+ goto overwrite;
+ }
+ }
+ fprintf(stderr, "set: cannot configure a new entry\n");
+ return 1;
+ }
+
+overwrite:
+ if (sdl->sdl_family != AF_LINK) {
+ printf("cannot intuit interface index and type for %s\n", 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 *sin = &sin_m;
+ struct addrinfo hints, *res;
+ int gai_error;
+
+ sin_m = blank_sin;
+ bzero(&hints, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ gai_error = getaddrinfo(host, NULL, &hints, &res);
+ if (gai_error) {
+ fprintf(stderr, "ndp: %s: %s\n", host,
+ gai_strerror(gai_error));
+ return;
+ }
+ sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
+ sin->sin6_scope_id =
+ ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
+ dump(sin, 0);
+ if (found_entry == 0) {
+ getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
+ sizeof(host_buf), NULL ,0,
+ (nflag ? NI_NUMERICHOST : 0));
+ printf("%s (%s) -- no entry\n", host, host_buf);
+ exit(1);
+ }
+}
+
+/*
+ * Delete a neighbor cache entry
+ */
+static int
+delete(char *host)
+{
+ struct sockaddr_in6 *sin = &sin_m;
+ register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
+ register char *cp = m_rtmsg.m_space;
+ 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) {
+ fprintf(stderr, "ndp: %s: %s\n", host,
+ gai_strerror(gai_error));
+ return 1;
+ }
+ sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
+ sin->sin6_scope_id =
+ ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
+ if (rtmsg(RTM_GET) < 0) {
+ errx(1, "RTM_GET(%s) failed", host);
+ /* NOTREACHED */
+ }
+ sin = (struct sockaddr_in6 *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)(ALIGN(sin->sin6_len) + (char *)sin);
+ if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
+ if (sdl->sdl_family == AF_LINK &&
+ !(rtm->rtm_flags & RTF_GATEWAY)) {
+ goto delete;
+ }
+ fprintf(stderr, "delete: cannot delete non-NDP entry\n");
+ return 1;
+ }
+
+delete:
+ if (sdl->sdl_family != AF_LINK) {
+ printf("cannot locate %s\n", host);
+ return (1);
+ }
+ /*
+ * need to reinit the field because it has rt_key
+ * but we want the actual address
+ */
+ NEXTADDR(RTA_DST, sin_m);
+ rtm->rtm_flags |= RTF_LLDATA;
+ if (rtmsg(RTM_DELETE) == 0) {
+ getnameinfo((struct sockaddr *)sin,
+ sin->sin6_len, host_buf,
+ sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0));
+ 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 sockaddr_in6 *addr, int cflag)
+{
+ int mib[6];
+ size_t needed;
+ char *lim, *buf, *next;
+ struct rt_msghdr *rtm;
+ struct sockaddr_in6 *sin;
+ struct sockaddr_dl *sdl;
+ extern int h_errno;
+ struct timeval now;
+ u_long expire;
+ int addrwidth;
+ int llwidth;
+ int ifwidth;
+ char flgbuf[8];
+ char *ifname;
+
+ /* Print header */
+ if (!tflag && !cflag)
+ 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;
+#ifdef RTF_LLINFO
+ mib[5] = RTF_LLINFO;
+#else
+ mib[5] = 0;
+#endif
+ if (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 (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 *)next;
+ sin = (struct sockaddr_in6 *)(rtm + 1);
+ sdl = (struct sockaddr_dl *)((char *)sin + ALIGN(sin->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->sin6_addr,
+ &sin->sin6_addr) == 0 ||
+ addr->sin6_scope_id != sin->sin6_scope_id)
+ continue;
+ found_entry = 1;
+ } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
+ continue;
+ if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) ||
+ IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) {
+ /* XXX: should scope id be filled in the kernel? */
+ if (sin->sin6_scope_id == 0)
+ sin->sin6_scope_id = sdl->sdl_index;
+ }
+ getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
+ sizeof(host_buf), NULL, 0, (nflag ? NI_NUMERICHOST : 0));
+ if (cflag) {
+#ifdef RTF_WASCLONED
+ if (rtm->rtm_flags & RTF_WASCLONED)
+ delete(host_buf);
+#elif defined(RTF_CLONED)
+ if (rtm->rtm_flags & RTF_CLONED)
+ delete(host_buf);
+#else
+ if (rtm->rtm_flags & RTF_PINNED)
+ continue;
+ delete(host_buf);
+#endif
+ continue;
+ }
+ gettimeofday(&now, 0);
+ if (tflag)
+ ts_print(&now);
+
+ 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(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;
+
+ printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf,
+ llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname);
+
+ /* Print neighbor discovery specific information */
+ expire = rtm->rtm_rmx.rmx_expire;
+ if (expire > now.tv_sec)
+ printf(" %-9.9s", sec2str(expire - now.tv_sec));
+ else if (expire == 0)
+ printf(" %-9.9s", "permanent");
+ else
+ printf(" %-9.9s", "expired");
+
+ switch (rtm->rtm_rmx.rmx_state) {
+ case ND6_LLINFO_NOSTATE:
+ printf(" N");
+ break;
+#ifdef ND6_LLINFO_WAITDELETE
+ case ND6_LLINFO_WAITDELETE:
+ printf(" W");
+ break;
+#endif
+ case ND6_LLINFO_INCOMPLETE:
+ printf(" I");
+ break;
+ case ND6_LLINFO_REACHABLE:
+ printf(" R");
+ break;
+ case ND6_LLINFO_STALE:
+ printf(" S");
+ break;
+ case ND6_LLINFO_DELAY:
+ printf(" D");
+ break;
+ case ND6_LLINFO_PROBE:
+ printf(" P");
+ break;
+ default:
+ printf(" ?");
+ break;
+ }
+
+ isrouter = rtm->rtm_flags & RTF_GATEWAY;
+ prbs = rtm->rtm_rmx.rmx_pksent;
+
+ /*
+ * other flags. R: router, P: proxy, W: ??
+ */
+ if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
+ snprintf(flgbuf, sizeof(flgbuf), "%s%s",
+ isrouter ? "R" : "",
+ (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
+ } else {
+#if 0 /* W and P are mystery even for us */
+ sin = (struct sockaddr_in6 *)
+ (sdl->sdl_len + (char *)sdl);
+ 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
+ snprintf(flgbuf, sizeof(flgbuf), "%s%s",
+ isrouter ? "R" : "",
+ (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
+#endif
+ }
+ printf(" %s", flgbuf);
+
+ if (prbs)
+ printf(" %d", prbs);
+
+ printf("\n");
+ }
+ if (buf != NULL)
+ free(buf);
+
+ if (repeat) {
+ printf("\n");
+ fflush(stdout);
+ sleep(repeat);
+ goto again;
+ }
+}
+
+static struct in6_nbrinfo *
+getnbrinfo(struct in6_addr *addr, int ifindex, int warning)
+{
+ static struct in6_nbrinfo nbi;
+ int s;
+
+ if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ bzero(&nbi, sizeof(nbi));
+ if_indextoname(ifindex, nbi.ifname);
+ nbi.addr = *addr;
+ if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
+ if (warning)
+ warn("ioctl(SIOCGNBRINFO_IN6)");
+ close(s);
+ return(NULL);
+ }
+
+ close(s);
+ return(&nbi);
+}
+
+static char *
+ether_str(struct sockaddr_dl *sdl)
+{
+ static char hbuf[NI_MAXHOST];
+
+ if (sdl->sdl_alen == ETHER_ADDR_LEN) {
+ strlcpy(hbuf, ether_ntoa((struct ether_addr *)LLADDR(sdl)),
+ sizeof(hbuf));
+ } else if (sdl->sdl_alen) {
+ int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
+ snprintf(hbuf, sizeof(hbuf), "%s", link_ntoa(sdl) + n);
+ } else
+ 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) {
+ fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a);
+ return (1);
+ }
+ for (i = 0; i < 6; i++)
+ n[i] = o[i];
+ return (0);
+}
+
+static void
+usage()
+{
+ printf("usage: ndp [-nt] hostname\n");
+ printf(" ndp [-nt] -a | -c | -p | -r | -H | -P | -R\n");
+ printf(" ndp [-nt] -A wait\n");
+ printf(" ndp [-nt] -d hostname\n");
+ printf(" ndp [-nt] -f filename\n");
+ printf(" ndp [-nt] -i interface [flags...]\n");
+#ifdef SIOCSDEFIFACE_IN6
+ printf(" ndp [-nt] -I [interface|delete]\n");
+#endif
+ printf(" ndp [-nt] -s nodename etheraddr [temp] [proxy]\n");
+ exit(1);
+}
+
+static int
+rtmsg(int cmd)
+{
+ static int seq;
+ int rlen;
+ 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;
+ bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
+ rtm->rtm_flags = flags;
+ rtm->rtm_version = RTM_VERSION;
+
+ switch (cmd) {
+ default:
+ fprintf(stderr, "ndp: internal wrong cmd\n");
+ exit(1);
+ 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 | RTF_LLDATA);
+#if 0 /* 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;
+ }
+
+ NEXTADDR(RTA_DST, sin_m);
+ NEXTADDR(RTA_GATEWAY, sdl_m);
+#if 0 /* we don't support ipv6addr/128 type proxying */
+ memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
+ NEXTADDR(RTA_NETMASK, so_mask);
+#endif
+
+ rtm->rtm_msglen = cp - (char *)&m_rtmsg;
+doit:
+ l = rtm->rtm_msglen;
+ rtm->rtm_seq = ++seq;
+ rtm->rtm_type = cmd;
+ if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
+ if (errno != ESRCH || cmd != RTM_DELETE) {
+ err(1, "writing to routing socket");
+ /* NOTREACHED */
+ }
+ }
+ do {
+ l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
+ } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
+ if (l < 0)
+ (void) fprintf(stderr, "ndp: read from routing socket: %s\n",
+ strerror(errno));
+ 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 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ err(1, "socket");
+ /* NOTREACHED */
+ }
+ bzero(&nd, sizeof(nd));
+ strlcpy(nd.ifname, ifname, sizeof(nd.ifname));
+ if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
+ err(1, "ioctl(SIOCGIFINFO_IN6)");
+ /* NOTREACHED */
+ }
+#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 (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 (0)
+
+ SETFLAG("disabled", ND6_IFF_IFDISABLED);
+ SETFLAG("nud", ND6_IFF_PERFORMNUD);
+#ifdef ND6_IFF_ACCEPT_RTADV
+ SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
+#endif
+#ifdef ND6_IFF_AUTO_LINKLOCAL
+ SETFLAG("auto_linklocal", ND6_IFF_AUTO_LINKLOCAL);
+#endif
+#ifdef ND6_IFF_NO_PREFER_IFACE
+ SETFLAG("no_prefer_iface", ND6_IFF_NO_PREFER_IFACE);
+#endif
+ SETVALUE("basereachable", ND.basereachable);
+ SETVALUE("retrans", ND.retrans);
+ SETVALUE("curhlim", ND.chlim);
+
+ ND.flags = newflags;
+ if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd) < 0) {
+ err(1, "ioctl(SIOCSIFINFO_IN6)");
+ /* NOTREACHED */
+ }
+#undef SETFLAG
+#undef SETVALUE
+ }
+
+ if (!ND.initialized) {
+ errx(1, "%s: not initialized yet", ifname);
+ /* NOTREACHED */
+ }
+
+ if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
+ err(1, "ioctl(SIOCGIFINFO_IN6)");
+ /* NOTREACHED */
+ }
+ printf("linkmtu=%d", ND.linkmtu);
+ printf(", maxmtu=%d", ND.maxmtu);
+ printf(", curhlim=%d", ND.chlim);
+ printf(", basereachable=%ds%dms",
+ ND.basereachable / 1000, ND.basereachable % 1000);
+ printf(", reachable=%ds", ND.reachable);
+ printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
+#ifdef IPV6CTL_USETEMPADDR
+ 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:
+ printf("\nRandom seed(0): ");
+ rbuf = ND.randomseed0;
+ break;
+ case 1:
+ printf("\nRandom seed(1): ");
+ rbuf = ND.randomseed1;
+ break;
+ case 2:
+ printf("\nRandom ID: ");
+ rbuf = ND.randomid;
+ break;
+ default:
+ errx(1, "impossible case for tempaddr display");
+ }
+ for (j = 0; j < 8; j++)
+ printf("%02x", rbuf[j]);
+ }
+ }
+#endif
+ if (ND.flags) {
+ printf("\nFlags: ");
+#ifdef ND6_IFF_IFDISABLED
+ if ((ND.flags & ND6_IFF_IFDISABLED))
+ printf("disabled ");
+#endif
+ if ((ND.flags & ND6_IFF_PERFORMNUD))
+ printf("nud ");
+#ifdef ND6_IFF_ACCEPT_RTADV
+ if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
+ printf("accept_rtadv ");
+#endif
+#ifdef ND6_IFF_AUTO_LINKLOCAL
+ if ((ND.flags & ND6_IFF_AUTO_LINKLOCAL))
+ printf("auto_linklocal ");
+#endif
+#ifdef ND6_IFF_NO_PREFER_IFACE
+ if ((ND.flags & ND6_IFF_NO_PREFER_IFACE))
+ printf("no_prefer_iface ");
+#endif
+ }
+ putc('\n', stdout);
+#undef ND
+
+ 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()
+{
+ int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
+ char *buf;
+ struct in6_defrouter *p, *ep;
+ size_t l;
+ struct timeval now;
+
+ if (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 (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
+ /*NOTREACHED*/
+ }
+
+ ep = (struct in6_defrouter *)(buf + l);
+ for (p = (struct in6_defrouter *)buf; p < ep; p++) {
+ int rtpref;
+
+ if (getnameinfo((struct sockaddr *)&p->rtaddr,
+ p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0,
+ (nflag ? NI_NUMERICHOST : 0)) != 0)
+ strlcpy(host_buf, "?", sizeof(host_buf));
+
+ printf("%s if=%s", host_buf,
+ if_indextoname(p->if_index, ifix_buf));
+ printf(", flags=%s%s",
+ p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
+ p->flags & ND_RA_FLAG_OTHER ? "O" : "");
+ rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
+ printf(", pref=%s", rtpref_str[rtpref]);
+
+ gettimeofday(&now, 0);
+ if (p->expire == 0)
+ printf(", expire=Never\n");
+ else
+ printf(", expire=%s\n",
+ sec2str(p->expire - now.tv_sec));
+ }
+ free(buf);
+}
+
+static void
+plist()
+{
+ int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
+ char *buf;
+ struct in6_prefix *p, *ep, *n;
+ struct sockaddr_in6 *advrtr;
+ size_t l;
+ struct timeval now;
+ const int niflags = NI_NUMERICHOST;
+ int ninflags = nflag ? NI_NUMERICHOST : 0;
+ char namebuf[NI_MAXHOST];
+
+ if (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 (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
+ err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
+ /*NOTREACHED*/
+ }
+
+ ep = (struct in6_prefix *)(buf + l);
+ for (p = (struct in6_prefix *)buf; p < ep; p = n) {
+ advrtr = (struct sockaddr_in6 *)(p + 1);
+ n = (struct in6_prefix *)&advrtr[p->advrtrs];
+
+ if (getnameinfo((struct sockaddr *)&p->prefix,
+ p->prefix.sin6_len, namebuf, sizeof(namebuf),
+ NULL, 0, niflags) != 0)
+ strlcpy(namebuf, "?", sizeof(namebuf));
+ printf("%s/%d if=%s\n", namebuf, p->prefixlen,
+ if_indextoname(p->if_index, ifix_buf));
+
+ gettimeofday(&now, 0);
+ /*
+ * meaning of fields, especially flags, is very different
+ * by origin. notify the difference to the users.
+ */
+ printf("flags=%s%s%s%s%s",
+ p->raflags.onlink ? "L" : "",
+ p->raflags.autonomous ? "A" : "",
+ (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
+ (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
+#ifdef NDPRF_HOME
+ (p->flags & NDPRF_HOME) != 0 ? "H" : ""
+#else
+ ""
+#endif
+ );
+ if (p->vltime == ND6_INFINITE_LIFETIME)
+ printf(" vltime=infinity");
+ else
+ printf(" vltime=%lu", (unsigned long)p->vltime);
+ if (p->pltime == ND6_INFINITE_LIFETIME)
+ printf(", pltime=infinity");
+ else
+ printf(", pltime=%lu", (unsigned long)p->pltime);
+ if (p->expire == 0)
+ printf(", expire=Never");
+ else if (p->expire >= now.tv_sec)
+ printf(", expire=%s",
+ sec2str(p->expire - now.tv_sec));
+ else
+ printf(", expired");
+ printf(", ref=%d", p->refcnt);
+ printf("\n");
+ /*
+ * "advertising router" list is meaningful only if the prefix
+ * information is from RA.
+ */
+ if (p->advrtrs) {
+ int j;
+ struct sockaddr_in6 *sin6;
+
+ sin6 = advrtr;
+ printf(" advertised by\n");
+ for (j = 0; j < p->advrtrs; j++) {
+ struct in6_nbrinfo *nbi;
+
+ if (getnameinfo((struct sockaddr *)sin6,
+ sin6->sin6_len, namebuf, sizeof(namebuf),
+ NULL, 0, ninflags) != 0)
+ strlcpy(namebuf, "?", sizeof(namebuf));
+ printf(" %s", namebuf);
+
+ nbi = getnbrinfo(&sin6->sin6_addr,
+ p->if_index, 0);
+ if (nbi) {
+ switch (nbi->state) {
+ case ND6_LLINFO_REACHABLE:
+ case ND6_LLINFO_STALE:
+ case ND6_LLINFO_DELAY:
+ case ND6_LLINFO_PROBE:
+ printf(" (reachable)\n");
+ break;
+ default:
+ printf(" (unreachable)\n");
+ }
+ } else
+ printf(" (no neighbor state)\n");
+ sin6++;
+ }
+ } else
+ printf(" No advertising router\n");
+ }
+ free(buf);
+}
+
+static void
+pfx_flush()
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
+}
+
+static void
+rtr_flush()
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
+
+ close(s);
+}
+
+static void
+harmonize_rtr()
+{
+ char dummyif[IFNAMSIZ+8];
+ int s;
+
+ if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+ strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */
+ if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
+ err(1, "ioctl(SIOCSNDFLUSH_IN6)");
+
+ close(s);
+}
+
+#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
+static void
+setdefif(char *ifname)
+{
+ struct in6_ndifreq ndifreq;
+ unsigned int ifindex;
+
+ 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 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
+ ndifreq.ifindex = ifindex;
+
+ if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
+ err(1, "ioctl(SIOCSDEFIFACE_IN6)");
+
+ close(s);
+}
+
+static void
+getdefif()
+{
+ struct in6_ndifreq ndifreq;
+ char ifname[IFNAMSIZ+8];
+
+ if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "socket");
+
+ memset(&ndifreq, 0, sizeof(ndifreq));
+ strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */
+
+ if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
+ err(1, "ioctl(SIOCGDEFIFACE_IN6)");
+
+ if (ndifreq.ifindex == 0)
+ printf("No default interface.\n");
+ else {
+ if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL)
+ err(1, "failed to resolve ifname for index %lu",
+ ndifreq.ifindex);
+ printf("ND default interface = %s\n", ifname);
+ }
+
+ close(s);
+}
+#endif
+
+static 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, ep - p, "%dd", days);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ if (!first || hours) {
+ first = 0;
+ n = snprintf(p, ep - p, "%dh", hours);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ if (!first || mins) {
+ first = 0;
+ n = snprintf(p, ep - p, "%dm", mins);
+ if (n < 0 || n >= ep - p)
+ return "?";
+ p += n;
+ }
+ snprintf(p, 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);
+}
+
+#undef NEXTADDR
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