ndp, "arp"-alike command for IPv6.
This commit is contained in:
itojun
parent
bad54b26c6
commit
4b8a1fec7e
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.110 1999/07/01 19:41:56 itojun Exp $
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# $NetBSD: Makefile,v 1.111 1999/07/01 20:33:55 itojun Exp $
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# from: @(#)Makefile 5.20 (Berkeley) 6/12/93
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# XXX Temporary for NO_SENDMAIL and BUILD_POSTFIX
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@ -22,7 +22,7 @@ SUBDIR= ac accton amd apm apmd arp bad144 bind bootp catman \
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zdump zic
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# IPv6
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SUBDIR+=gifconfig
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SUBDIR+=gifconfig ndp
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.if !defined(NO_SENDMAIL)
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SUBDIR+= sendmail
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@ -0,0 +1,12 @@
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# $NetBSD: Makefile,v 1.1 1999/07/01 20:33:56 itojun Exp $
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.PATH: ${.CURDIR}/../tcpdump
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PROG= ndp
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SRCS= ndp.c gmt2local.c
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MAN= ndp.8
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CFLAGS+=-DINET6
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CFLAGS+=-I. -I${.CURDIR}/../tcpdump
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.include <bsd.prog.mk>
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@ -0,0 +1 @@
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/* this is dummy to pacify gmt2local.c. */
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@ -0,0 +1,135 @@
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.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the project nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: ndp.8,v 1.1 1999/07/01 20:33:56 itojun Exp $
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.\"
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.Dd May 17, 1998
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.Dt NDP 8
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.Os
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.\"
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.Sh NAME
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.Nm ndp
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.Nd control/diagnose IPv6 neighbor discovery protocol
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.\"
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.Sh SYNOPSIS
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.Nm ndp
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.Fl a
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.Op Fl nt
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.Nm ndp
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.Fl A Ar wait
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.Op Fl nt
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.Nm ndp
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.Fl c
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.Op Fl nt
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.Nm ndp
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.Fl d
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.Op Fl nt
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.Ar hostname
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.Nm ndp
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.Fl f
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.Op Fl nt
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.Ar filename
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.Nm ndp
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.Fl H
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.Nm ndp
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.Fl i
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.Ar interface
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.Nm ndp
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.Fl p
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.Nm ndp
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.Fl P
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.Nm ndp
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.Fl r
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.Nm ndp
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.Fl R
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.Nm ndp
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.Fl s
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.Op Fl nt
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.Ar nodename
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.Ar ether_addr
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.Op temp
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.\"
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.Sh DESCRIPTION
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.Nm
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command manipulates the address mapping table
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used by Neighbor Discovery Protocol (NDP).
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.Bl -tag -width Ds
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.It Fl a
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Dump the currently existing NDP entries.
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.It Fl A Ar wait
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Repeat
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.Fl a
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.Pq dump NDP entries
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every
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.Ar wait
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seconds.
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.It Fl c
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Erase all the NDP entries.
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.It Fl d
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Delete specified NDP entry.
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.It Fl f
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Parse the file specified by
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.Ar filename .
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.It Fl H
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Harmonize consistency between the routing table and the default router
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list; install the top entry of the list into the kernel routing table.
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.It Fl i
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view ND information for specified interface.
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.It Fl n
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Do not try to resolve numeric address to hostname.
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.It Fl p
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Show prefix list.
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.It Fl P
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Flush all the entries in the prefix list.
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.It Fl r
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Show default router list.
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.It Fl R
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Flush all the entries in the default router list.
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.It Fl s
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Register a NDP entry for a node.
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.It Fl t
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Print timestamp on each entries,
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to make it possible to merge output with
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.Xr tcpdump 1 .
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Most useful when used with
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.Fl A .
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.El
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.\"
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.Sh RETURN VALUES
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.Nm Ndp
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will exit with 0 on success, and non-zero on errors.
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.\"
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.Sh SEE ALSO
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.Xr arp 8
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.\"
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.Sh HISTORY
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The
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.Nm
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command first appeared in WIDE Hydrangea IPv6 protocol stack kit.
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.\"
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.\" .Sh BUGS
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.\" (to be written)
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@ -0,0 +1,996 @@
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/*
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* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1984, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Sun Microsystems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Based on:
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* "@(#) Copyright (c) 1984, 1993\n\
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* The Regents of the University of California. All rights reserved.\n";
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*
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* "@(#)arp.c 8.2 (Berkeley) 1/2/94";
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*/
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/*
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* ndp - display, set, delete and flush neighbor cache
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*/
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <sys/time.h>
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#include <net/if.h>
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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#include <net/if_var.h>
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#endif /* __FreeBSD__ >= 3 */
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#ifndef __NetBSD__
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#include <netinet/if_ether.h>
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#endif
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#include <netinet/icmp6.h>
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#include <netinet6/in6_var.h>
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#include <netinet6/nd6.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <errno.h>
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#include <nlist.h>
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#include <stdio.h>
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#include <string.h>
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#include <paths.h>
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#include <err.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "gmt2local.h"
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extern int errno;
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static int pid;
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static int fflag;
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static int nflag;
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static int tflag;
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static int32_t thiszone; /* time difference with gmt */
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static int s = -1;
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static int repeat = 0;
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char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
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char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
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int main __P((int, char **));
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int file __P((char *));
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void getsocket __P((void));
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int set __P((int, char **));
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void get __P((char *));
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int delete __P((char *));
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void dump __P((struct in6_addr *));
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static struct in6_nbrinfo *getnbrinfo __P((struct in6_addr *addr, int ifindex));
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static char *ether_str __P((struct sockaddr_dl *));
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int ndp_ether_aton __P((char *, u_char *));
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void usage __P((void));
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int rtmsg __P((int));
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void ifinfo __P((char *));
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void rtrlist __P((void));
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void plist __P((void));
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void pfx_flush __P((void));
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void rtr_flush __P((void));
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void harmonize_rtr __P((void));
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void quit __P((char *));
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static char *sec2str __P((time_t t));
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static char *ether_str __P((struct sockaddr_dl *sdl));
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static void ts_print __P((const struct timeval *));
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int ch;
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int aflag = 0, cflag = 0, dflag = 0, sflag = 0, Hflag = 0,
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pflag = 0, rflag = 0, Pflag = 0, Rflag = 0;
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extern char *optarg;
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extern int optind;
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pid = getpid();
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thiszone = gmt2local(0);
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while ((ch = getopt(argc, argv, "acndfiprstA:HPR")) != EOF)
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switch ((char)ch) {
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case 'a':
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aflag = 1;
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break;
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case 'c':
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fflag = 1;
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cflag = 1;
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break;
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case 'd':
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dflag = 1;
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break;
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case 'i' :
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if (argc != 3)
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usage();
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ifinfo(argv[2]);
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exit(0);
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case 'n':
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nflag = 1;
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continue;
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case 'p':
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pflag = 1;
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break;
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case 'f' :
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if (argc != 3)
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usage();
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file(argv[2]);
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exit(0);
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case 'r' :
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rflag = 1;
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break;
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case 's':
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sflag = 1;
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break;
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case 't':
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tflag = 1;
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break;
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case 'A':
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aflag = 1;
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repeat = atoi(optarg);
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if (repeat < 0)
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usage();
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break;
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case 'H' :
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Hflag = 1;
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break;
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case 'P':
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Pflag = 1;
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break;
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case 'R':
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Rflag = 1;
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (aflag || cflag) {
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dump(0);
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exit(0);
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}
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if (dflag) {
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if (argc != 1)
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usage();
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delete(argv[0]);
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}
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if (pflag) {
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plist();
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exit(0);
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}
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if (rflag) {
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rtrlist();
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exit(0);
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}
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if (sflag) {
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if (argc < 2 || argc > 4)
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usage();
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exit(set(argc, argv) ? 1 : 0);
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}
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if (Hflag) {
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harmonize_rtr();
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exit(0);
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}
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if (Pflag) {
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pfx_flush();
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exit(0);
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}
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if (Rflag) {
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rtr_flush();
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exit(0);
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}
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if (argc != 1)
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usage();
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get(argv[0]);
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exit(0);
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}
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/*
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* Process a file to set standard ndp entries
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*/
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int
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file(name)
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char *name;
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{
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FILE *fp;
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int i, retval;
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char line[100], arg[5][50], *args[5];
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if ((fp = fopen(name, "r")) == NULL) {
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fprintf(stderr, "ndp: cannot open %s\n", name);
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exit(1);
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}
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args[0] = &arg[0][0];
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args[1] = &arg[1][0];
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args[2] = &arg[2][0];
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args[3] = &arg[3][0];
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args[4] = &arg[4][0];
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retval = 0;
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while(fgets(line, 100, fp) != NULL) {
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i = sscanf(line, "%s %s %s %s %s", arg[0], arg[1], arg[2],
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arg[3], arg[4]);
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if (i < 2) {
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fprintf(stderr, "ndp: bad line: %s\n", line);
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retval = 1;
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continue;
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}
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if (set(i, args))
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retval = 1;
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}
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fclose(fp);
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return (retval);
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}
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void
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getsocket()
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{
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if (s < 0) {
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s = socket(PF_ROUTE, SOCK_RAW, 0);
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if (s < 0) {
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perror("ndp: socket");
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exit(1);
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}
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}
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}
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struct sockaddr_in so_mask = {8, 0, 0, { 0xffffffff}};
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struct sockaddr_in6 blank_sin = {sizeof(blank_sin), AF_INET6 }, sin_m;
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struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m;
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int expire_time, flags, found_entry;
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struct {
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struct rt_msghdr m_rtm;
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char m_space[512];
|
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} m_rtmsg;
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/*
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* Set an individual neighbor cache entry
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*/
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int
|
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set(argc, argv)
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int argc;
|
||||
char **argv;
|
||||
{
|
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register struct sockaddr_in6 *sin = &sin_m;
|
||||
register struct sockaddr_dl *sdl;
|
||||
register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
|
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struct addrinfo hints, *res;
|
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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;
|
||||
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 time;
|
||||
gettimeofday(&time, 0);
|
||||
expire_time = time.tv_sec + 20 * 60;
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
tryagain:
|
||||
if (rtmsg(RTM_GET) < 0) {
|
||||
perror(host);
|
||||
return (1);
|
||||
}
|
||||
sin = (struct sockaddr_in6 *)(rtm + 1);
|
||||
sdl = (struct sockaddr_dl *)(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_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;
|
||||
}
|
||||
goto tryagain;
|
||||
}
|
||||
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
|
||||
*/
|
||||
void
|
||||
get(host)
|
||||
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;
|
||||
dump(&sin->sin6_addr);
|
||||
if (found_entry == 0) {
|
||||
printf("%s (%s) -- no entry\n",
|
||||
host, inet_ntop(AF_INET6, &sin->sin6_addr, ntop_buf,
|
||||
sizeof(ntop_buf)));
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Delete a neighbor cache entry
|
||||
*/
|
||||
int
|
||||
delete(host)
|
||||
char *host;
|
||||
{
|
||||
register struct sockaddr_in6 *sin = &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) {
|
||||
fprintf(stderr, "ndp: %s: %s\n", host,
|
||||
gai_strerror(gai_error));
|
||||
return 1;
|
||||
}
|
||||
sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
|
||||
/*tryagain:*/
|
||||
if (rtmsg(RTM_GET) < 0) {
|
||||
perror(host);
|
||||
return (1);
|
||||
}
|
||||
sin = (struct sockaddr_in6 *)(rtm + 1);
|
||||
sdl = (struct sockaddr_dl *)(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_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 delete;
|
||||
}
|
||||
}
|
||||
delete:
|
||||
if (sdl->sdl_family != AF_LINK) {
|
||||
printf("cannot locate %s\n", host);
|
||||
return (1);
|
||||
}
|
||||
if (rtmsg(RTM_DELETE) == 0)
|
||||
printf("%s (%s) deleted\n", host,
|
||||
inet_ntop(AF_INET6, &sin->sin6_addr, ntop_buf,
|
||||
sizeof(ntop_buf)));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Dump the entire neighbor cache
|
||||
*/
|
||||
void
|
||||
dump(addr)
|
||||
struct in6_addr *addr;
|
||||
{
|
||||
int mib[6];
|
||||
size_t needed;
|
||||
char *host, *lim, *buf, *next;
|
||||
struct rt_msghdr *rtm;
|
||||
struct sockaddr_in6 *sin;
|
||||
struct sockaddr_dl *sdl;
|
||||
extern int h_errno;
|
||||
struct hostent *hp;
|
||||
struct in6_nbrinfo *nbi;
|
||||
struct timeval time;
|
||||
|
||||
/* Print header */
|
||||
if (!tflag)
|
||||
printf("%-29.29s %-18.18s %6.6s %-9.9s %2s %4s %4s\n",
|
||||
"Neighbor", "Linklayer Address", "Netif", "Expire",
|
||||
"St", "Flgs", "Prbs");
|
||||
|
||||
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 (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
|
||||
quit("route-sysctl-estimate");
|
||||
if ((buf = malloc(needed)) == NULL)
|
||||
quit("malloc");
|
||||
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
|
||||
quit("actual retrieval of routing table");
|
||||
lim = buf + needed;
|
||||
|
||||
for (next = buf; 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 *)(sin + 1);
|
||||
if (addr) {
|
||||
if (!IN6_ARE_ADDR_EQUAL(addr, &sin->sin6_addr))
|
||||
continue;
|
||||
found_entry = 1;
|
||||
} else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
|
||||
continue;
|
||||
if (fflag == 1) {
|
||||
delete((char *)inet_ntop(AF_INET6, &sin->sin6_addr,
|
||||
ntop_buf, sizeof(ntop_buf)));
|
||||
continue;
|
||||
}
|
||||
host = NULL;
|
||||
if (nflag == 0) {
|
||||
hp = gethostbyaddr((char *)&sin->sin6_addr,
|
||||
sizeof(struct in6_addr), AF_INET6);
|
||||
if (hp)
|
||||
host = hp->h_name;
|
||||
}
|
||||
if (host == NULL) {
|
||||
inet_ntop(AF_INET6, &sin->sin6_addr,
|
||||
ntop_buf, sizeof(ntop_buf));
|
||||
host = ntop_buf;
|
||||
}
|
||||
|
||||
gettimeofday(&time, 0);
|
||||
if (tflag)
|
||||
ts_print(&time);
|
||||
|
||||
printf("%-29.29s %-18.18s %6.6s", host,
|
||||
ether_str(sdl),
|
||||
if_indextoname(sdl->sdl_index, ifix_buf));
|
||||
|
||||
/* Print neighbor discovery specific informations */
|
||||
putchar(' ');
|
||||
nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index);
|
||||
if (nbi) {
|
||||
if (nbi->expire > time.tv_sec) {
|
||||
printf(" %-9.9s",
|
||||
sec2str(nbi->expire - time.tv_sec));
|
||||
}
|
||||
else if (nbi->expire == 0)
|
||||
printf(" %-9.9s", "permanent");
|
||||
else
|
||||
printf(" %-9.9s", "expired");
|
||||
|
||||
switch(nbi->state) {
|
||||
case ND6_LLINFO_NOSTATE:
|
||||
printf(" N");
|
||||
break;
|
||||
case ND6_LLINFO_WAITDELETE:
|
||||
printf(" W");
|
||||
break;
|
||||
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 = nbi->isrouter;
|
||||
prbs = nbi->asked;
|
||||
}
|
||||
else {
|
||||
warnx("failed to get neighbor information");
|
||||
printf(" ");
|
||||
}
|
||||
|
||||
/* other flags */
|
||||
putchar(' ');
|
||||
{
|
||||
u_char flgbuf[8], *p = flgbuf;
|
||||
|
||||
flgbuf[0] = '\0';
|
||||
if (isrouter)
|
||||
p += sprintf((char *)p, "R");
|
||||
#ifndef RADISH
|
||||
if (rtm->rtm_addrs & RTA_NETMASK) {
|
||||
sin = (struct sockaddr_in6 *)
|
||||
(sdl->sdl_len + (char *)sdl);
|
||||
if (!IN6_IS_ADDR_ANY(&sin->sin6_addr))
|
||||
p += sprintf((char *)p, "P");
|
||||
if (sin->sin6_len != sizeof(struct sockaddr_in6))
|
||||
p += sprintf((char *)p, "W");
|
||||
}
|
||||
#endif /*RADISH*/
|
||||
printf("%4s", flgbuf);
|
||||
}
|
||||
|
||||
putchar(' ');
|
||||
if (prbs)
|
||||
printf("% 4d", prbs);
|
||||
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
if (repeat) {
|
||||
printf("\n");
|
||||
sleep(repeat);
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
|
||||
static struct in6_nbrinfo *
|
||||
getnbrinfo(addr, ifindex)
|
||||
struct in6_addr *addr;
|
||||
int ifindex;
|
||||
{
|
||||
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) {
|
||||
warn("ioctl");
|
||||
close(s);
|
||||
return(NULL);
|
||||
}
|
||||
|
||||
close(s);
|
||||
return(&nbi);
|
||||
}
|
||||
|
||||
static char *
|
||||
ether_str(sdl)
|
||||
struct sockaddr_dl *sdl;
|
||||
{
|
||||
static char ebuf[32];
|
||||
u_char *cp;
|
||||
|
||||
if (sdl->sdl_alen) {
|
||||
cp = (u_char *)LLADDR(sdl);
|
||||
sprintf(ebuf, "%x:%x:%x:%x:%x:%x",
|
||||
cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
|
||||
}
|
||||
else {
|
||||
sprintf(ebuf, "(incomplete)");
|
||||
}
|
||||
|
||||
return(ebuf);
|
||||
}
|
||||
|
||||
int
|
||||
ndp_ether_aton(a, n)
|
||||
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);
|
||||
}
|
||||
|
||||
void
|
||||
usage()
|
||||
{
|
||||
printf("usage: ndp hostname\n");
|
||||
printf(" ndp -a[nt]\n");
|
||||
printf(" ndp [-nt] -A wait\n");
|
||||
printf(" ndp -c[nt]\n");
|
||||
printf(" ndp -d[nt] hostname\n");
|
||||
printf(" ndp -f[nt] filename\n");
|
||||
printf(" ndp -i interface\n");
|
||||
printf(" ndp -p\n");
|
||||
printf(" ndp -r\n");
|
||||
printf(" ndp -s hostname ether_addr [temp]\n");
|
||||
printf(" ndp -H\n");
|
||||
printf(" ndp -P\n");
|
||||
printf(" ndp -R\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int
|
||||
rtmsg(cmd)
|
||||
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;
|
||||
rtm->rtm_rmx.rmx_expire = expire_time;
|
||||
rtm->rtm_inits = RTV_EXPIRE;
|
||||
rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
|
||||
/* FALLTHROUGH */
|
||||
case RTM_GET:
|
||||
rtm->rtm_addrs |= RTA_DST;
|
||||
}
|
||||
#define NEXTADDR(w, s) \
|
||||
if (rtm->rtm_addrs & (w)) { \
|
||||
bcopy((char *)&s, cp, sizeof(s)); cp += sizeof(s);}
|
||||
|
||||
NEXTADDR(RTA_DST, sin_m);
|
||||
NEXTADDR(RTA_GATEWAY, sdl_m);
|
||||
NEXTADDR(RTA_NETMASK, so_mask);
|
||||
|
||||
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) {
|
||||
perror("writing to routing socket");
|
||||
return (-1);
|
||||
}
|
||||
}
|
||||
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);
|
||||
}
|
||||
|
||||
void
|
||||
ifinfo(ifname)
|
||||
char *ifname;
|
||||
{
|
||||
struct in6_ndireq nd;
|
||||
int s;
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("ndp: socket");
|
||||
exit(1);
|
||||
}
|
||||
bzero(&nd, sizeof(nd));
|
||||
strcpy(nd.ifname, ifname);
|
||||
if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
|
||||
perror("ioctl (SIOCGIFINFO_IN6)");
|
||||
exit(1);
|
||||
}
|
||||
#define ND nd.ndi
|
||||
printf("linkmtu=%d", ND.linkmtu);
|
||||
printf(", curhlim=%d", ND.chlim);
|
||||
printf(", basereachable=%ds%dms",
|
||||
ND.basereachable / 1000, ND.basereachable % 1000);
|
||||
printf(", reachable=%ds", ND.reachable);
|
||||
printf(", retrans=%ds%dms\n", ND.retrans / 1000, ND.retrans % 1000);
|
||||
#undef ND
|
||||
close(s);
|
||||
}
|
||||
|
||||
void
|
||||
rtrlist()
|
||||
{
|
||||
struct in6_drlist dr;
|
||||
int s, i;
|
||||
struct timeval time;
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("ndp: socket");
|
||||
exit(1);
|
||||
}
|
||||
bzero(&dr, sizeof(dr));
|
||||
strcpy(dr.ifname, "lo0"); /* dummy */
|
||||
if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
|
||||
perror("ioctl (SIOCGDRLST_IN6)");
|
||||
exit(1);
|
||||
}
|
||||
#define DR dr.defrouter[i]
|
||||
for (i = 0 ; DR.if_index && i < PRLSTSIZ ; i++) {
|
||||
printf("%s if=%s", inet_ntop(AF_INET6, &DR.rtaddr,
|
||||
ntop_buf, sizeof(ntop_buf)),
|
||||
if_indextoname(DR.if_index, ifix_buf));
|
||||
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)
|
||||
printf(", expire=Never\n");
|
||||
else
|
||||
printf(", expire=%s\n",
|
||||
sec2str(DR.expire - time.tv_sec));
|
||||
}
|
||||
#undef DR
|
||||
close(s);
|
||||
}
|
||||
|
||||
void
|
||||
plist()
|
||||
{
|
||||
struct in6_prlist pr;
|
||||
int s, i;
|
||||
struct timeval time;
|
||||
|
||||
gettimeofday(&time, 0);
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("ndp: socket");
|
||||
exit(1);
|
||||
}
|
||||
bzero(&pr, sizeof(pr));
|
||||
strcpy(pr.ifname, "lo0"); /* dummy */
|
||||
if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
|
||||
perror("ioctl (SIOCGPRLST_IN6)");
|
||||
exit(1);
|
||||
}
|
||||
#define PR pr.prefix[i]
|
||||
for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) {
|
||||
printf("%s/%d if=%s\n",
|
||||
inet_ntop(AF_INET6, &PR.prefix, ntop_buf,
|
||||
sizeof(ntop_buf)), PR.prefixlen,
|
||||
if_indextoname(PR.if_index, ifix_buf));
|
||||
gettimeofday(&time, 0);
|
||||
printf(" flags=%s%s",
|
||||
PR.raflags.onlink ? "L" : "",
|
||||
PR.raflags.autonomous ? "A" : "");
|
||||
if (PR.vltime == ND6_INFINITE_LIFETIME)
|
||||
printf(" vltime=infinity");
|
||||
else
|
||||
printf(" vltime=%ld", (long)PR.vltime);
|
||||
if (PR.pltime == ND6_INFINITE_LIFETIME)
|
||||
printf(", pltime=infinity");
|
||||
else
|
||||
printf(", pltime=%ld", (long)PR.pltime);
|
||||
if (PR.expire == 0)
|
||||
printf(", expire=Never\n");
|
||||
else if (PR.expire >= time.tv_sec)
|
||||
printf(", expire=%s\n",
|
||||
sec2str(PR.expire - time.tv_sec));
|
||||
else
|
||||
printf(", expired\n");
|
||||
if (PR.advrtrs) {
|
||||
int j;
|
||||
printf(" advertised by\n");
|
||||
for (j = 0; j < PR.advrtrs; j++) {
|
||||
printf(" %s\n",
|
||||
inet_ntop(AF_INET6, &PR.advrtr[j],
|
||||
ntop_buf,
|
||||
sizeof(ntop_buf)));
|
||||
}
|
||||
if (PR.advrtrs > DRLSTSIZ)
|
||||
printf(" and %d routers\n",
|
||||
PR.advrtrs - DRLSTSIZ);
|
||||
}
|
||||
else
|
||||
printf(" No advertising router\n");
|
||||
}
|
||||
#undef PR
|
||||
close(s);
|
||||
}
|
||||
|
||||
void
|
||||
pfx_flush()
|
||||
{
|
||||
char dummyif[IFNAMSIZ+8];
|
||||
int s;
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
|
||||
err(1, "socket");
|
||||
strcpy(dummyif, "lo0"); /* dummy */
|
||||
if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
|
||||
err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
|
||||
}
|
||||
|
||||
void
|
||||
rtr_flush()
|
||||
{
|
||||
char dummyif[IFNAMSIZ+8];
|
||||
int s;
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
|
||||
err(1, "socket");
|
||||
strcpy(dummyif, "lo0"); /* dummy */
|
||||
if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
|
||||
err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
|
||||
}
|
||||
|
||||
void
|
||||
harmonize_rtr()
|
||||
{
|
||||
char dummyif[IFNAMSIZ+8];
|
||||
int s;
|
||||
|
||||
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
|
||||
perror("ndp: socket");
|
||||
exit(1);
|
||||
}
|
||||
strcpy(dummyif, "lo0"); /* dummy */
|
||||
if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0) {
|
||||
perror("ioctl (SIOCSNDFLUSH_IN6)");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
quit(msg)
|
||||
char *msg;
|
||||
{
|
||||
fprintf(stderr, "%s\n", msg);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
static char *
|
||||
sec2str(total)
|
||||
time_t total;
|
||||
{
|
||||
static char result[256];
|
||||
int days, hours, mins, secs;
|
||||
int first = 1;
|
||||
char *p = result;
|
||||
|
||||
days = total / 3600 / 24;
|
||||
hours = (total / 3600) % 24;
|
||||
mins = (total / 60) % 60;
|
||||
secs = total % 60;
|
||||
|
||||
if (days) {
|
||||
first = 0;
|
||||
p += sprintf(p, "%dd", days);
|
||||
}
|
||||
if (!first || hours) {
|
||||
first = 0;
|
||||
p += sprintf(p, "%dh", hours);
|
||||
}
|
||||
if (!first || mins) {
|
||||
first = 0;
|
||||
p += sprintf(p, "%dm", mins);
|
||||
}
|
||||
sprintf(p, "%ds", secs);
|
||||
|
||||
return(result);
|
||||
}
|
||||
|
||||
/*
|
||||
* Print the timestamp
|
||||
* from tcpdump/util.c
|
||||
*/
|
||||
static void
|
||||
ts_print(tvp)
|
||||
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);
|
||||
}
|
||||
Loading…
Reference in New Issue