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927 lines
21 KiB
C
927 lines
21 KiB
C
/* $FreeBSD$ */
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/* $KAME: gifconfig.c,v 1.14 2001/01/01 04:04:56 jinmei Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. 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. 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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* gifconfig, derived from ifconfig
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*
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* @(#) Copyright (c) 1983, 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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* @(#)ifconfig.c 8.2 (Berkeley) 2/16/94
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*/
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/*
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* 951109 - Andrew@pubnix.net - Changed to iterative buffer growing mechanism
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* for ifconfig -a so all interfaces are queried.
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*
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* 960101 - peter@freebsd.org - Blow away the SIOCGIFCONF code and use
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* sysctl() to get the structured interface conf
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* and parse the messages in there. REALLY UGLY!
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/sysctl.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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#include <netinet/in_var.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <sys/protosw.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <nlist.h>
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#include <kvm.h>
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#include <fcntl.h>
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struct ifreq ifr;
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struct ifaliasreq addreq;
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#ifdef INET6
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struct in6_ifreq in6_ifr;
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struct in6_aliasreq in6_addreq;
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#endif
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char name[32];
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int flags;
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int metric;
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int mtu;
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int setpsrc = 0;
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int newaddr = 0;
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int s;
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kvm_t *kvmd;
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#ifdef INET6
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char ntop_buf[INET6_ADDRSTRLEN]; /*inet_ntop()*/
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#endif
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void setifpsrc __P((char *, int));
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void setifpdst __P((char *, int));
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void setifflags __P((char *, int));
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#ifdef SIOCDIFPHYADDR
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void delifaddrs __P((char *, int));
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#endif
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#define NEXTARG 0xffffff
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static struct cmd {
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char *c_name;
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int c_parameter; /* NEXTARG means next argv */
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void (*c_func) __P((char *, int));
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} cmds[] = {
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{ "up", IFF_UP, setifflags } ,
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{ "down", -IFF_UP, setifflags },
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#ifdef SIOCDIFPHYADDR
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{ "delete", 0, delifaddrs },
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#endif
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{ 0, 0, setifpsrc },
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{ 0, 0, setifpdst },
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};
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/*
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* XNS support liberally adapted from code written at the University of
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* Maryland principally by James O'Toole and Chris Torek.
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*/
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int main __P((int, char *[]));
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void status __P((void));
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void phys_status __P((int));
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void in_status __P((int));
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#ifdef INET6
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void in6_status __P((int));
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#endif
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void ether_status __P((int));
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void Perror __P((char *));
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void in_getaddr __P((char *, int));
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#ifdef INET6
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void in6_getaddr __P((char *, int));
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void in6_getprefix __P((char *, int));
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#endif
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void printb __P((char *, unsigned int, char *));
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int prefix __P((void *, int));
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char ntop_buf[INET6_ADDRSTRLEN];
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/* Known address families */
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struct afswtch {
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char *af_name;
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short af_af;
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void (*af_status) __P((int));
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void (*af_getaddr) __P((char *, int));
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void (*af_getprefix) __P((char *, int));
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u_long af_pifaddr;
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caddr_t af_addreq;
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caddr_t af_req;
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} afs[] = {
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#define C(x) ((caddr_t) &x)
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{ "inet", AF_INET, in_status, in_getaddr, 0,
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SIOCSIFPHYADDR, C(addreq), C(ifr) },
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#ifdef INET6
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{ "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix,
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SIOCSIFPHYADDR_IN6, C(in6_addreq), C(in6_ifr) },
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#endif
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{ "ether", AF_INET, ether_status, NULL, NULL }, /* XXX not real!! */
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{ 0, 0, 0, 0, 0 }
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};
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struct afswtch *afp = NULL; /*the address family being set or asked about*/
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void rt_xaddrs __P((caddr_t, caddr_t, struct rt_addrinfo *));
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int ifconfig __P((int argc, char *argv[], int af, struct afswtch *rafp));
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/*
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* Expand the compacted form of addresses as returned via the
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* configuration read via sysctl().
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*/
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#define ROUNDUP(a) \
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((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
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#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
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void
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rt_xaddrs(cp, cplim, rtinfo)
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caddr_t cp, cplim;
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struct rt_addrinfo *rtinfo;
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{
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struct sockaddr *sa;
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int i;
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memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info));
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for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) {
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if ((rtinfo->rti_addrs & (1 << i)) == 0)
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continue;
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rtinfo->rti_info[i] = sa = (struct sockaddr *)cp;
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ADVANCE(cp, sa);
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}
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}
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/*
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* Grunge for new-style sysctl() decoding.. :-(
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* Apologies to the world for committing gross things like this in 1996..
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*/
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struct if_msghdr *ifm;
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struct ifa_msghdr *ifam;
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struct sockaddr_dl *sdl;
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struct rt_addrinfo info;
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char *buf, *lim, *next;
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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 af = AF_INET;
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struct afswtch *rafp = NULL;
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size_t needed;
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int mib[6];
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int all;
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if (argc < 2) {
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fprintf(stderr,
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"usage: gifconfig interface [af] [physsrc physdst]\n");
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#ifdef SIOCDIFPHYADDR
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fprintf(stderr,
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" gifconfig interface delete\n");
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#endif
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fprintf(stderr,
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" gifconfig -a\n");
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exit(1);
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}
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argc--, argv++;
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strncpy(name, *argv, sizeof(name));
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strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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argc--, argv++;
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if (argc > 0) {
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for (afp = rafp = afs; rafp->af_name; rafp++)
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if (strcmp(rafp->af_name, *argv) == 0) {
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afp = rafp; argc--; argv++;
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break;
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}
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rafp = afp;
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af = ifr.ifr_addr.sa_family = rafp->af_af;
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}
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mib[0] = CTL_NET;
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mib[1] = PF_ROUTE;
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mib[2] = 0;
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mib[3] = 0; /* address family */
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mib[4] = NET_RT_IFLIST;
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mib[5] = 0;
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/* if particular family specified, only ask about it */
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if (afp) {
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mib[3] = afp->af_af;
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}
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if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
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errx(1, "iflist-sysctl-estimate");
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if ((buf = malloc(needed)) == NULL)
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errx(1, "malloc");
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if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
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errx(1, "actual retrieval of interface table");
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lim = buf + needed;
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all = 0;
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if (strcmp(name, "-a") == 0)
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all = 1; /* All interfaces */
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else if (strcmp(name, "-au") == 0)
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all = 2; /* All IFF_UPinterfaces */
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else if (strcmp(name, "-ad") == 0)
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all = 3; /* All !IFF_UP interfaces */
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for (next = buf; next < lim; next += ifm->ifm_msglen) {
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ifm = (struct if_msghdr *)next;
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/* XXX: Swallow up leftover NEWADDR messages */
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if (ifm->ifm_type == RTM_NEWADDR)
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continue;
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if (ifm->ifm_type == RTM_IFINFO) {
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sdl = (struct sockaddr_dl *)(ifm + 1);
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flags = ifm->ifm_flags;
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} else {
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errx(1, "out of sync parsing NET_RT_IFLIST");
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}
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switch(all) {
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case -1:
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case 0:
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if (strlen(name) != sdl->sdl_nlen)
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continue; /* not same len */
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if (strncmp(name, sdl->sdl_data, sdl->sdl_nlen) != 0)
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continue; /* not same name */
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break;
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case 1:
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break; /* always do it */
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case 2:
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if ((flags & IFF_UP) == 0)
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continue; /* not up */
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break;
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case 3:
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if (flags & IFF_UP)
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continue; /* not down */
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break;
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}
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/*
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* Let's just do it for gif only
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*/
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if (sdl->sdl_type != IFT_GIF) {
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if (all != 0)
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continue;
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fprintf(stderr, "gifconfig: %s is not gif.\n",
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ifr.ifr_name);
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exit(1);
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}
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if (all > 0) {
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strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
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name[sdl->sdl_nlen] = '\0';
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}
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if ((s = socket(af, SOCK_DGRAM, 0)) < 0) {
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perror("gifconfig: socket");
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exit(1);
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}
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ifconfig(argc,argv,af,rafp);
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close(s);
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if (all == 0) {
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all = -1; /* flag it as 'done' */
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break;
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}
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}
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free(buf);
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if (all == 0)
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errx(1, "interface %s does not exist", name);
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exit (0);
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}
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int
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ifconfig(argc, argv, af, rafp)
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int argc;
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char *argv[];
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int af;
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struct afswtch *rafp;
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{
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af = 0; /*fool gcc*/
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strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
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#ifdef INET6
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strncpy(in6_ifr.ifr_name, name, sizeof in6_ifr.ifr_name);
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#endif /* INET6 */
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if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
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perror("ioctl (SIOCGIFMETRIC)");
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else
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metric = ifr.ifr_metric;
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#if defined(SIOCGIFMTU) && !defined(__OpenBSD__)
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if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0)
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perror("ioctl (SIOCGIFMTU)");
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else
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mtu = ifr.ifr_mtu;
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#else
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mtu = 0;
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#endif
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if (argc == 0) {
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status();
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return(0);
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}
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while (argc > 0) {
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register struct cmd *p;
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for (p = cmds; p->c_name; p++)
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if (strcmp(*argv, p->c_name) == 0)
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break;
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if (p->c_name == 0 && setpsrc)
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p++; /* got src, do dst */
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if (p->c_func) {
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if (p->c_parameter == NEXTARG) {
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if (argv[1] == NULL)
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errx(1, "'%s' requires argument",
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p->c_name);
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(*p->c_func)(argv[1], 0);
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argc--, argv++;
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} else
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(*p->c_func)(*argv, p->c_parameter);
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}
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argc--, argv++;
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}
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if (newaddr) {
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strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name);
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if (ioctl(s, rafp->af_pifaddr, rafp->af_addreq) < 0)
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Perror("ioctl (SIOCSIFPHYADDR)");
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}
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else if (setpsrc) {
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errx(1, "destination is not specified");
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}
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return(0);
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}
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#define PSRC 0
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#define PDST 1
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/*ARGSUSED*/
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void
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setifpsrc(addr, param)
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char *addr;
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int param;
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{
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param = 0; /*fool gcc*/
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(*afp->af_getaddr)(addr, PSRC);
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setpsrc = 1;
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}
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/*ARGSUSED*/
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void
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setifpdst(addr, param)
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char *addr;
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int param;
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{
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param = 0; /*fool gcc*/
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(*afp->af_getaddr)(addr, PDST);
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newaddr = 1;
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}
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void
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setifflags(vname, value)
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char *vname;
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int value;
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{
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if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
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Perror("ioctl (SIOCGIFFLAGS)");
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exit(1);
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}
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strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
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flags = ifr.ifr_flags;
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if (value < 0) {
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value = -value;
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flags &= ~value;
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} else
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flags |= value;
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ifr.ifr_flags = flags;
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if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
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Perror(vname);
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}
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#ifdef SIOCDIFPHYADDR
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/* ARGSUSED */
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void
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delifaddrs(vname, param)
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char *vname;
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int param;
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{
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param = 0; /* fool gcc */
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vname = NULL; /* ditto */
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if (ioctl(s, SIOCDIFPHYADDR, (caddr_t)&ifr) < 0)
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err(1, "ioctl(SIOCDIFPHYADDR)");
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}
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#endif
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#define IFFBITS \
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"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
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\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST"
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|
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/*
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* Print the status of the interface. If an address family was
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* specified, show it and it only; otherwise, show them all.
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*/
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void
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status()
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{
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struct afswtch *p = NULL;
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char *mynext;
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struct if_msghdr *myifm;
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printf("%s: ", name);
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printb("flags", flags, IFFBITS);
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if (metric)
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printf(" metric %d", metric);
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if (mtu)
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printf(" mtu %d", mtu);
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putchar('\n');
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/*
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|
* XXX: Sigh. This is bad, I know. At this point, we may have
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|
* *zero* RTM_NEWADDR's, so we have to "feel the water" before
|
|
* incrementing the loop. One day, I might feel inspired enough
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|
* to get the top level loop to pass a count down here so we
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* dont have to mess with this. -Peter
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*/
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myifm = ifm;
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while (1) {
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mynext = next + ifm->ifm_msglen;
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|
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if (mynext >= lim)
|
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break;
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|
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myifm = (struct if_msghdr *)mynext;
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|
|
if (myifm->ifm_type != RTM_NEWADDR)
|
|
break;
|
|
|
|
next = mynext;
|
|
|
|
ifm = (struct if_msghdr *)next;
|
|
|
|
ifam = (struct ifa_msghdr *)myifm;
|
|
info.rti_addrs = ifam->ifam_addrs;
|
|
|
|
/* Expand the compacted addresses */
|
|
rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
|
|
&info);
|
|
|
|
if (afp) {
|
|
if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family &&
|
|
afp->af_status != ether_status) {
|
|
p = afp;
|
|
if (p->af_status != ether_status)
|
|
(*p->af_status)(1);
|
|
}
|
|
} else for (p = afs; p->af_name; p++) {
|
|
if (p->af_af == info.rti_info[RTAX_IFA]->sa_family &&
|
|
p->af_status != ether_status)
|
|
(*p->af_status)(0);
|
|
}
|
|
}
|
|
if (afp == NULL || afp->af_status == ether_status)
|
|
ether_status(0);
|
|
else if (afp && !p) {
|
|
warnx("%s has no %s IFA address!", name, afp->af_name);
|
|
}
|
|
|
|
phys_status(0);
|
|
}
|
|
|
|
void
|
|
phys_status(force)
|
|
int force;
|
|
{
|
|
char psrcaddr[256];
|
|
char pdstaddr[256];
|
|
int flags = NI_NUMERICHOST;
|
|
char *af;
|
|
#ifndef SIOCGLIFPHYADDR
|
|
u_long srccmd, dstcmd;
|
|
struct ifreq *ifrp;
|
|
#ifdef INET6
|
|
int s6;
|
|
#endif
|
|
|
|
force = 0; /*fool gcc*/
|
|
|
|
psrcaddr[0] = pdstaddr[0] = '\0';
|
|
|
|
#ifdef INET6
|
|
s6 = socket(AF_INET6, SOCK_DGRAM, 0);
|
|
if (s6 < 0) {
|
|
ifrp = 𝔦
|
|
srccmd = SIOCGIFPSRCADDR;
|
|
dstcmd = SIOCGIFPDSTADDR;
|
|
} else {
|
|
close(s6);
|
|
srccmd = SIOCGIFPSRCADDR_IN6;
|
|
dstcmd = SIOCGIFPDSTADDR_IN6;
|
|
ifrp = (struct ifreq *)&in6_ifr;
|
|
}
|
|
#else /* INET6 */
|
|
ifrp = 𝔦
|
|
srccmd = SIOCGIFPSRCADDR;
|
|
dstcmd = SIOCGIFPDSTADDR;
|
|
#endif /* INET6 */
|
|
|
|
if (0 <= ioctl(s, srccmd, (caddr_t)ifrp)) {
|
|
#ifdef INET6
|
|
if (ifrp->ifr_addr.sa_family == AF_INET6)
|
|
af = "inet6";
|
|
else
|
|
af = "inet";
|
|
#else
|
|
af = "inet";
|
|
#endif /* INET6 */
|
|
if (getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
|
|
psrcaddr, sizeof(psrcaddr), 0, 0, flags) != 0)
|
|
psrcaddr[0] = '\0';
|
|
}
|
|
if (0 <= ioctl(s, dstcmd, (caddr_t)ifrp)) {
|
|
if (getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
|
|
pdstaddr, sizeof(pdstaddr), 0, 0, flags) != 0)
|
|
pdstaddr[0] = '\0';
|
|
}
|
|
printf("\tphysical address %s %s --> %s\n", af, psrcaddr, pdstaddr);
|
|
#else
|
|
struct if_laddrreq iflr;
|
|
|
|
force = 0; /*fool gcc*/
|
|
|
|
psrcaddr[0] = pdstaddr[0] = '\0';
|
|
|
|
memset(&iflr, 0, sizeof(iflr));
|
|
memcpy(iflr.iflr_name, ifr.ifr_name, sizeof(iflr.iflr_name));
|
|
|
|
if (0 <= ioctl(s, SIOCGLIFPHYADDR, (caddr_t)&iflr)) {
|
|
switch (iflr.addr.ss_family) {
|
|
case AF_INET:
|
|
af = "inet";
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
af = "inet6";
|
|
break;
|
|
#endif /* INET6 */
|
|
}
|
|
if (getnameinfo((struct sockaddr *)&iflr.addr, iflr.addr.ss_len,
|
|
psrcaddr, sizeof(psrcaddr), 0, 0, flags) != 0)
|
|
psrcaddr[0] = '\0';
|
|
if (getnameinfo((struct sockaddr *)&iflr.dstaddr,
|
|
iflr.dstaddr.ss_len, pdstaddr, sizeof(pdstaddr), 0, 0,
|
|
flags) != 0)
|
|
pdstaddr[0] = '\0';
|
|
}
|
|
printf("\tphysical address %s %s --> %s\n", af, psrcaddr, pdstaddr);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
in_status(force)
|
|
int force;
|
|
{
|
|
struct sockaddr_in *sin, null_sin;
|
|
#if 0
|
|
char *inet_ntoa();
|
|
#endif
|
|
|
|
memset(&null_sin, 0, sizeof(null_sin));
|
|
|
|
sin = (struct sockaddr_in *)info.rti_info[RTAX_IFA];
|
|
if (!sin || sin->sin_family != AF_INET) {
|
|
if (!force)
|
|
return;
|
|
/* warnx("%s has no AF_INET IFA address!", name); */
|
|
sin = &null_sin;
|
|
}
|
|
printf("\tinet %s ", inet_ntoa(sin->sin_addr));
|
|
|
|
if (flags & IFF_POINTOPOINT) {
|
|
/* note RTAX_BRD overlap with IFF_BROADCAST */
|
|
sin = (struct sockaddr_in *)info.rti_info[RTAX_BRD];
|
|
if (!sin)
|
|
sin = &null_sin;
|
|
printf("--> %s ", inet_ntoa(sin->sin_addr));
|
|
}
|
|
|
|
sin = (struct sockaddr_in *)info.rti_info[RTAX_NETMASK];
|
|
if (!sin)
|
|
sin = &null_sin;
|
|
printf("netmask 0x%x ", (u_int32_t)ntohl(sin->sin_addr.s_addr));
|
|
|
|
if (flags & IFF_BROADCAST) {
|
|
/* note RTAX_BRD overlap with IFF_POINTOPOINT */
|
|
sin = (struct sockaddr_in *)info.rti_info[RTAX_BRD];
|
|
if (sin && sin->sin_addr.s_addr != 0)
|
|
printf("broadcast %s", inet_ntoa(sin->sin_addr));
|
|
}
|
|
putchar('\n');
|
|
}
|
|
|
|
#ifdef INET6
|
|
void
|
|
in6_status(force)
|
|
int force;
|
|
{
|
|
struct sockaddr_in6 *sin, null_sin;
|
|
char hostname[NI_MAXHOST];
|
|
int niflags = NI_NUMERICHOST;
|
|
|
|
memset(&null_sin, 0, sizeof(null_sin));
|
|
#ifdef NI_WITHSCOPEID
|
|
niflags |= NI_WITHSCOPEID;
|
|
#endif
|
|
|
|
sin = (struct sockaddr_in6 *)info.rti_info[RTAX_IFA];
|
|
if (!sin || sin->sin6_family != AF_INET6) {
|
|
if (!force)
|
|
return;
|
|
/* warnx("%s has no AF_INET6 IFA address!", name); */
|
|
sin = &null_sin;
|
|
}
|
|
#ifdef __KAME__
|
|
if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
|
|
sin->sin6_scope_id =
|
|
ntohs(*(u_int16_t *)&sin->sin6_addr.s6_addr[2]);
|
|
sin->sin6_addr.s6_addr[2] = 0;
|
|
sin->sin6_addr.s6_addr[3] = 0;
|
|
}
|
|
#endif
|
|
getnameinfo((struct sockaddr *)sin, sin->sin6_len,
|
|
hostname, sizeof(hostname), 0, 0, niflags);
|
|
printf("\tinet6 %s ", hostname);
|
|
|
|
if (flags & IFF_POINTOPOINT) {
|
|
/* note RTAX_BRD overlap with IFF_BROADCAST */
|
|
sin = (struct sockaddr_in6 *)info.rti_info[RTAX_BRD];
|
|
/*
|
|
* some of ther interfaces do not have valid destination
|
|
* address.
|
|
*/
|
|
if (sin->sin6_family == AF_INET6) {
|
|
#ifdef __KAME__
|
|
if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
|
|
sin->sin6_scope_id =
|
|
ntohs(*(u_int16_t *)&sin->sin6_addr.s6_addr[2]);
|
|
sin->sin6_addr.s6_addr[2] = 0;
|
|
sin->sin6_addr.s6_addr[3] = 0;
|
|
}
|
|
#endif
|
|
getnameinfo((struct sockaddr *)sin, sin->sin6_len,
|
|
hostname, sizeof(hostname), 0, 0, niflags);
|
|
printf("--> %s ", hostname);
|
|
}
|
|
}
|
|
|
|
sin = (struct sockaddr_in6 *)info.rti_info[RTAX_NETMASK];
|
|
if (!sin)
|
|
sin = &null_sin;
|
|
printf(" prefixlen %d ", prefix(&sin->sin6_addr,
|
|
sizeof(struct in6_addr)));
|
|
|
|
putchar('\n');
|
|
}
|
|
#endif /*INET6*/
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
ether_status(dummy)
|
|
int dummy;
|
|
{
|
|
char *cp;
|
|
int n;
|
|
|
|
dummy = 0; /*fool gcc*/
|
|
|
|
cp = (char *)LLADDR(sdl);
|
|
if ((n = sdl->sdl_alen) > 0) {
|
|
if (sdl->sdl_type == IFT_ETHER)
|
|
printf ("\tether ");
|
|
else
|
|
printf ("\tlladdr ");
|
|
while (--n >= 0)
|
|
printf("%02x%c",*cp++ & 0xff, n>0? ':' : ' ');
|
|
putchar('\n');
|
|
}
|
|
}
|
|
|
|
void
|
|
Perror(cmd)
|
|
char *cmd;
|
|
{
|
|
switch (errno) {
|
|
|
|
case ENXIO:
|
|
errx(1, "%s: no such interface", cmd);
|
|
break;
|
|
|
|
case EPERM:
|
|
errx(1, "%s: permission denied", cmd);
|
|
break;
|
|
|
|
default:
|
|
err(1, "%s", cmd);
|
|
}
|
|
}
|
|
|
|
#define SIN(x) ((struct sockaddr_in *) &(x))
|
|
struct sockaddr_in *sintab[] = {
|
|
SIN(addreq.ifra_addr), SIN(addreq.ifra_dstaddr)};
|
|
|
|
void
|
|
in_getaddr(s, which)
|
|
char *s;
|
|
int which;
|
|
{
|
|
register struct sockaddr_in *sin = sintab[which];
|
|
struct hostent *hp;
|
|
struct netent *np;
|
|
|
|
sin->sin_len = sizeof(*sin);
|
|
sin->sin_family = AF_INET;
|
|
|
|
if (inet_aton(s, &sin->sin_addr))
|
|
;
|
|
else if ((hp = gethostbyname(s)) != NULL)
|
|
bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
|
|
else if ((np = getnetbyname(s)) != NULL)
|
|
sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
|
|
else
|
|
errx(1, "%s: bad value", s);
|
|
}
|
|
|
|
#ifdef INET6
|
|
#define SIN6(x) ((struct sockaddr_in6 *) &(x))
|
|
struct sockaddr_in6 *sin6tab[] = {
|
|
SIN6(in6_addreq.ifra_addr), SIN6(in6_addreq.ifra_dstaddr)};
|
|
|
|
void
|
|
in6_getaddr(s, which)
|
|
char *s;
|
|
int which;
|
|
{
|
|
register struct sockaddr_in6 *sin = sin6tab[which];
|
|
|
|
sin->sin6_len = sizeof(*sin);
|
|
sin->sin6_family = AF_INET6;
|
|
|
|
if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
|
|
errx(1, "%s: bad value", s);
|
|
}
|
|
|
|
void
|
|
in6_getprefix(plen, which)
|
|
char *plen;
|
|
int which;
|
|
{
|
|
register struct sockaddr_in6 *sin = sin6tab[which];
|
|
register u_char *cp;
|
|
int len = atoi(plen);
|
|
|
|
if ((len < 0) || (len > 128))
|
|
errx(1, "%s: bad value", plen);
|
|
sin->sin6_len = sizeof(*sin);
|
|
sin->sin6_family = AF_INET6;
|
|
if ((len == 0) || (len == 128)) {
|
|
memset(&sin->sin6_addr, -1, sizeof(struct in6_addr));
|
|
return;
|
|
}
|
|
for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
|
|
*cp++ = -1;
|
|
*cp = (-1) << (8 - len);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Print a value a la the %b format of the kernel's printf
|
|
*/
|
|
void
|
|
printb(s, v, bits)
|
|
char *s;
|
|
register unsigned int v;
|
|
register char *bits;
|
|
{
|
|
register int i, any = 0;
|
|
register char c;
|
|
|
|
if (bits && *bits == 8)
|
|
printf("%s=%o", s, v & 0xffff);
|
|
else
|
|
printf("%s=%x", s, v & 0xffff);
|
|
bits++;
|
|
if (bits) {
|
|
putchar('<');
|
|
while ((i = *bits++) != 0) {
|
|
if ((v & (1 << (i-1))) != 0) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *bits) > 32; bits++)
|
|
putchar(c);
|
|
} else
|
|
for (; *bits > 32; bits++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
}
|
|
|
|
#ifdef INET6
|
|
int
|
|
prefix(val, size)
|
|
void *val;
|
|
int size;
|
|
{
|
|
register u_char *name = (u_char *)val;
|
|
register int byte, bit, plen = 0;
|
|
|
|
for (byte = 0; byte < size; byte++, plen += 8)
|
|
if (name[byte] != 0xff)
|
|
break;
|
|
if (byte == size)
|
|
return (plen);
|
|
for (bit = 7; bit != 0; bit--, plen++)
|
|
if (!(name[byte] & (1 << bit)))
|
|
break;
|
|
for (; bit != 0; bit--)
|
|
if (name[byte] & (1 << bit))
|
|
return(0);
|
|
byte++;
|
|
for (; byte < size; byte++)
|
|
if (name[byte])
|
|
return(0);
|
|
return (plen);
|
|
}
|
|
#endif /*INET6*/
|