b1a3bc5ea0
Submitted by: bde
1242 lines
29 KiB
C
1242 lines
29 KiB
C
/*
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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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#ifndef lint
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static const char copyright[] =
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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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#endif /* not lint */
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#ifndef lint
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/*
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static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
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*/
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static const char rcsid[] =
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"$Id: ifconfig.c,v 1.33 1997/12/24 00:57:41 imp Exp $";
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#endif /* not lint */
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#include <sys/param.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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#include <net/if_var.h>
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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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/* IP */
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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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/* IPX */
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#define IPXIP
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#define IPTUNNEL
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#include <netipx/ipx.h>
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#include <netipx/ipx_if.h>
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/* Appletalk */
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#include <netatalk/at.h>
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/* XNS */
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#ifdef NS
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#define NSIP
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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/* OSI */
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#ifdef ISO
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#define EON
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#include <netiso/iso.h>
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#include <netiso/iso_var.h>
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#endif
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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 <fcntl.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 "ifconfig.h"
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struct ifreq ifr, ridreq;
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struct ifaliasreq addreq;
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#ifdef ISO
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struct iso_ifreq iso_ridreq;
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struct iso_aliasreq iso_addreq;
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#endif
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struct sockaddr_in netmask;
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struct netrange at_nr; /* AppleTalk net range */
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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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#ifdef ISO
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int nsellength = 1;
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#endif
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int setaddr;
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int setipdst;
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int doalias;
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int clearaddr;
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int newaddr = 1;
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struct afswtch;
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void Perror __P((const char *cmd));
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void checkatrange __P((struct sockaddr_at *));
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int ifconfig __P((int argc, char *const *argv, const struct afswtch *afp));
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void notealias __P((const char *, int, int, const struct afswtch *afp));
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void printb __P((const char *s, unsigned value, const char *bits));
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void rt_xaddrs __P((caddr_t, caddr_t, struct rt_addrinfo *));
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void status __P((const struct afswtch *afp, int addrcount,
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struct sockaddr_dl *sdl, struct if_msghdr *ifm,
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struct ifa_msghdr *ifam));
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void usage __P((void));
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typedef void c_func __P((const char *cmd, int arg, int s, const struct afswtch *afp));
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c_func setatphase, setatrange;
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c_func setifaddr, setifbroadaddr, setifdstaddr, setifnetmask;
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c_func setifipdst;
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c_func setifflags, setifmetric, setifmtu;
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#ifdef ISO
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c_func setsnpaoffset, setnsellength;
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#endif
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#define NEXTARG 0xffffff
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const
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struct cmd {
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const char *c_name;
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int c_parameter; /* NEXTARG means next argv */
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void (*c_func) __P((const char *, int, int, const struct afswtch *afp));
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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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{ "arp", -IFF_NOARP, setifflags },
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{ "-arp", IFF_NOARP, setifflags },
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{ "debug", IFF_DEBUG, setifflags },
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{ "-debug", -IFF_DEBUG, setifflags },
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{ "alias", IFF_UP, notealias },
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{ "-alias", -IFF_UP, notealias },
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{ "delete", -IFF_UP, notealias },
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#ifdef notdef
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#define EN_SWABIPS 0x1000
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{ "swabips", EN_SWABIPS, setifflags },
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{ "-swabips", -EN_SWABIPS, setifflags },
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#endif
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{ "netmask", NEXTARG, setifnetmask },
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{ "range", NEXTARG, setatrange },
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{ "phase", NEXTARG, setatphase },
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{ "metric", NEXTARG, setifmetric },
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{ "broadcast", NEXTARG, setifbroadaddr },
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{ "ipdst", NEXTARG, setifipdst },
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#ifdef ISO
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{ "snpaoffset", NEXTARG, setsnpaoffset },
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{ "nsellength", NEXTARG, setnsellength },
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#endif
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{ "link0", IFF_LINK0, setifflags },
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{ "-link0", -IFF_LINK0, setifflags },
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{ "link1", IFF_LINK1, setifflags },
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{ "-link1", -IFF_LINK1, setifflags },
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{ "link2", IFF_LINK2, setifflags },
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{ "-link2", -IFF_LINK2, setifflags },
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#ifdef USE_IF_MEDIA
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{ "media", NEXTARG, setmedia },
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{ "mediaopt", NEXTARG, setmediaopt },
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{ "-mediaopt", NEXTARG, unsetmediaopt },
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#endif
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{ "normal", -IFF_LINK0, setifflags },
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{ "compress", IFF_LINK0, setifflags },
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{ "noicmp", IFF_LINK1, setifflags },
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{ "mtu", NEXTARG, setifmtu },
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{ 0, 0, setifaddr },
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{ 0, 0, setifdstaddr },
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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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typedef void af_status __P((int, struct rt_addrinfo *));
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typedef void af_getaddr __P((const char *, int));
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af_status in_status, ipx_status, at_status, ether_status;
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af_getaddr in_getaddr, ipx_getaddr, at_getaddr;
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#ifdef NS
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af_status xns_status;
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af_getaddr xns_getaddr;
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#endif
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#ifdef ISO
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af_status iso_status;
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af_getaddr iso_getaddr;
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#endif
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/* Known address families */
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const
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struct afswtch {
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const char *af_name;
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short af_af;
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af_status *af_status;
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af_getaddr *af_getaddr;
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int af_difaddr;
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int af_aifaddr;
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caddr_t af_ridreq;
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caddr_t af_addreq;
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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,
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SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
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{ "ipx", AF_IPX, ipx_status, ipx_getaddr,
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SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
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{ "atalk", AF_APPLETALK, at_status, at_getaddr,
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SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) },
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#ifdef NS
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{ "ns", AF_NS, xns_status, xns_getaddr,
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SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
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#endif
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#ifdef ISO
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{ "iso", AF_ISO, iso_status, iso_getaddr,
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SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) },
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#endif
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{ "ether", AF_INET, ether_status, NULL }, /* XXX not real!! */
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#if 0 /* XXX conflicts with the media command */
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#ifdef USE_IF_MEDIA
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{ "media", AF_INET, media_status, NULL }, /* XXX not real!! */
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#endif
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#endif
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{ 0, 0, 0, 0 }
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};
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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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void
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usage()
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{
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fputs("usage: ifconfig -a [ -d ] [ -u ] [ af ]\n", stderr);
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fputs(" ifconfig -l [ -d ] [ -u ]\n", stderr);
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fputs(" [ af [ address [ dest_addr ] ] [ netmask mask ] [ broadcast addr ]\n", stderr);
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fputs(" [ alias ] [ delete ] ]\n", stderr);
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fputs(" [ up ] [ down ]\n", stderr);
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fputs(" [ metric n ]\n", stderr);
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fputs(" [ mtu n ]\n", stderr);
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fputs(" [ arp | -arp ]\n", stderr);
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fputs(" [ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n", stderr);
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#ifdef USE_IF_MEDIA
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fputs(" [ media mtype ]\n", stderr);
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fputs(" [ mediaopt mopts ]\n", stderr);
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fputs(" [ -mediaopt mopts ]\n", stderr);
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#endif
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exit(1);
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}
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int
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main(argc, argv)
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int argc;
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char *const *argv;
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{
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int c;
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int all, namesonly, downonly, uponly;
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int foundit = 0, need_nl = 0;
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const struct afswtch *afp = 0;
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int addrcount;
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struct if_msghdr *ifm, *nextifm;
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struct ifa_msghdr *ifam;
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struct sockaddr_dl *sdl;
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char *buf, *lim, *next;
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size_t needed;
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int mib[6];
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/* Parse leading line options */
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all = downonly = uponly = namesonly = 0;
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while ((c = getopt(argc, argv, "adlmu")) != -1) {
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switch (c) {
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case 'a': /* scan all interfaces */
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all++;
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break;
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case 'l': /* scan interface names only */
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namesonly++;
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break;
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case 'd': /* restrict scan to "down" interfaces */
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downonly++;
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break;
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case 'u': /* restrict scan to "up" interfaces */
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uponly++;
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break;
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case 'm': /* show media choices in status */
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/* ignored for compatability */
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break;
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default:
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usage();
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break;
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}
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}
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argc -= optind;
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argv += optind;
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/* -l cannot be used with -a or -m */
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if (namesonly && all)
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usage();
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/* nonsense.. */
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if (uponly && downonly)
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usage();
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/* -a and -l allow an address family arg to limit the output */
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if (all || namesonly) {
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if (argc > 1)
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usage();
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if (argc == 1) {
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for (afp = afs; afp->af_name; afp++)
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if (strcmp(afp->af_name, *argv) == 0) {
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argc--, argv++;
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break;
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}
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if (afp->af_name == NULL)
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usage();
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/* leave with afp non-zero */
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}
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} else {
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/* not listsing, need an argument */
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if (argc < 1)
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usage();
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strncpy(name, *argv, sizeof(name));
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argc--, argv++;
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}
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/* Check for address family */
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if (argc > 0) {
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for (afp = afs; afp->af_name; afp++)
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if (strcmp(afp->af_name, *argv) == 0) {
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argc--, argv++;
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break;
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}
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if (afp->af_name == NULL)
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afp = NULL; /* not a family, NULL */
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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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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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next = buf;
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while (next < lim) {
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ifm = (struct if_msghdr *)next;
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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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fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n");
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fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO,
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ifm->ifm_type);
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fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen);
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fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next,
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lim);
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exit (1);
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}
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next += ifm->ifm_msglen;
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ifam = NULL;
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addrcount = 0;
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while (next < lim) {
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nextifm = (struct if_msghdr *)next;
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if (nextifm->ifm_type != RTM_NEWADDR)
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break;
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if (ifam == NULL)
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ifam = (struct ifa_msghdr *)nextifm;
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addrcount++;
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next += nextifm->ifm_msglen;
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}
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if (all || namesonly) {
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if (uponly)
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if ((flags & IFF_UP) == 0)
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continue; /* not up */
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if (downonly)
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if (flags & IFF_UP)
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continue; /* not down */
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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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if (namesonly) {
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if (need_nl)
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putchar(' ');
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fputs(name, stdout);
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need_nl++;
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continue;
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}
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} else {
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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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}
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if (argc > 0)
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ifconfig(argc, argv, afp);
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else
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status(afp, addrcount, sdl, ifm, ifam);
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if (all == 0 && namesonly == 0) {
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foundit++; /* 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 (namesonly && need_nl > 0)
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putchar('\n');
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if (all == 0 && namesonly == 0 && foundit == 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, afp)
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int argc;
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char *const *argv;
|
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const struct afswtch *afp;
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{
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int s;
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|
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if (afp == NULL)
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afp = &afs[0];
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ifr.ifr_addr.sa_family = afp->af_af;
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strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
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|
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if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) {
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perror("ifconfig: socket");
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exit(1);
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}
|
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|
|
while (argc > 0) {
|
|
register const struct cmd *p;
|
|
|
|
for (p = cmds; p->c_name; p++)
|
|
if (strcmp(*argv, p->c_name) == 0)
|
|
break;
|
|
if (p->c_name == 0 && setaddr)
|
|
p++; /* got src, do dst */
|
|
if (p->c_func) {
|
|
if (p->c_parameter == NEXTARG) {
|
|
if (argv[1] == NULL)
|
|
errx(1, "'%s' requires argument",
|
|
p->c_name);
|
|
(*p->c_func)(argv[1], 0, s, afp);
|
|
argc--, argv++;
|
|
} else
|
|
(*p->c_func)(*argv, p->c_parameter, s, afp);
|
|
}
|
|
argc--, argv++;
|
|
}
|
|
#ifdef ISO
|
|
if (af == AF_ISO)
|
|
adjust_nsellength();
|
|
#endif
|
|
if (setipdst && ifr.ifr_addr.sa_family == AF_IPX) {
|
|
struct ipxip_req rq;
|
|
int size = sizeof(rq);
|
|
|
|
rq.rq_ipx = addreq.ifra_addr;
|
|
rq.rq_ip = addreq.ifra_dstaddr;
|
|
|
|
if (setsockopt(s, 0, SO_IPXIP_ROUTE, &rq, size) < 0)
|
|
Perror("Encapsulation Routing");
|
|
}
|
|
if (ifr.ifr_addr.sa_family == AF_APPLETALK)
|
|
checkatrange((struct sockaddr_at *) &addreq.ifra_addr);
|
|
#ifdef NS
|
|
if (setipdst && ifr.ifr_addr.sa_family == AF_NS) {
|
|
struct nsip_req rq;
|
|
int size = sizeof(rq);
|
|
|
|
rq.rq_ns = addreq.ifra_addr;
|
|
rq.rq_ip = addreq.ifra_dstaddr;
|
|
|
|
if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
|
|
Perror("Encapsulation Routing");
|
|
}
|
|
#endif
|
|
if (clearaddr) {
|
|
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
clearaddr = NULL;
|
|
}
|
|
}
|
|
if (clearaddr) {
|
|
int ret;
|
|
strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
|
|
if ((ret = ioctl(s, afp->af_difaddr, afp->af_ridreq)) < 0) {
|
|
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
|
|
/* means no previous address for interface */
|
|
} else
|
|
Perror("ioctl (SIOCDIFADDR)");
|
|
}
|
|
}
|
|
if (newaddr) {
|
|
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
newaddr = NULL;
|
|
}
|
|
}
|
|
if (newaddr) {
|
|
strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
|
|
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
|
|
Perror("ioctl (SIOCAIFADDR)");
|
|
}
|
|
close(s);
|
|
return(0);
|
|
}
|
|
#define RIDADDR 0
|
|
#define ADDR 1
|
|
#define MASK 2
|
|
#define DSTADDR 3
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
setifaddr(addr, param, s, afp)
|
|
const char *addr;
|
|
int param;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
/*
|
|
* Delay the ioctl to set the interface addr until flags are all set.
|
|
* The address interpretation may depend on the flags,
|
|
* and the flags may change when the address is set.
|
|
*/
|
|
setaddr++;
|
|
if (doalias == 0)
|
|
clearaddr = 1;
|
|
(*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
|
|
}
|
|
|
|
void
|
|
setifnetmask(addr, dummy, s, afp)
|
|
const char *addr;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
(*afp->af_getaddr)(addr, MASK);
|
|
}
|
|
|
|
void
|
|
setifbroadaddr(addr, dummy, s, afp)
|
|
const char *addr;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
(*afp->af_getaddr)(addr, DSTADDR);
|
|
}
|
|
|
|
void
|
|
setifipdst(addr, dummy, s, afp)
|
|
const char *addr;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
in_getaddr(addr, DSTADDR);
|
|
setipdst++;
|
|
clearaddr = 0;
|
|
newaddr = 0;
|
|
}
|
|
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
|
|
|
|
void
|
|
notealias(addr, param, s, afp)
|
|
const char *addr;
|
|
int param;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
if (setaddr && doalias == 0 && param < 0)
|
|
bcopy((caddr_t)rqtosa(af_addreq),
|
|
(caddr_t)rqtosa(af_ridreq),
|
|
rqtosa(af_addreq)->sa_len);
|
|
doalias = param;
|
|
if (param < 0) {
|
|
clearaddr = 1;
|
|
newaddr = 0;
|
|
} else
|
|
clearaddr = 0;
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
setifdstaddr(addr, param, s, afp)
|
|
const char *addr;
|
|
int param __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
(*afp->af_getaddr)(addr, DSTADDR);
|
|
}
|
|
|
|
void
|
|
setifflags(vname, value, s, afp)
|
|
const char *vname;
|
|
int value;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
|
|
Perror("ioctl (SIOCGIFFLAGS)");
|
|
exit(1);
|
|
}
|
|
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
flags = ifr.ifr_flags;
|
|
|
|
if (value < 0) {
|
|
value = -value;
|
|
flags &= ~value;
|
|
} else
|
|
flags |= value;
|
|
ifr.ifr_flags = flags;
|
|
if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
|
|
Perror(vname);
|
|
}
|
|
|
|
void
|
|
setifmetric(val, dummy, s, afp)
|
|
const char *val;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_metric = atoi(val);
|
|
if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
|
|
perror("ioctl (set metric)");
|
|
}
|
|
|
|
void
|
|
setifmtu(val, dummy, s, afp)
|
|
const char *val;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_mtu = atoi(val);
|
|
if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
|
|
perror("ioctl (set mtu)");
|
|
}
|
|
|
|
#ifdef ISO
|
|
void
|
|
setsnpaoffset(val, dummy)
|
|
char *val;
|
|
int dummy __unused;
|
|
{
|
|
iso_addreq.ifra_snpaoffset = atoi(val);
|
|
}
|
|
#endif
|
|
|
|
#define IFFBITS \
|
|
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6b6\7RUNNING" \
|
|
"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
|
|
"\20MULTICAST"
|
|
|
|
/*
|
|
* Print the status of the interface. If an address family was
|
|
* specified, show it and it only; otherwise, show them all.
|
|
*/
|
|
void
|
|
status(afp, addrcount, sdl, ifm, ifam)
|
|
const struct afswtch *afp;
|
|
int addrcount;
|
|
struct sockaddr_dl *sdl;
|
|
struct if_msghdr *ifm;
|
|
struct ifa_msghdr *ifam;
|
|
{
|
|
const struct afswtch *p = NULL;
|
|
struct rt_addrinfo info;
|
|
int allfamilies, s;
|
|
|
|
if (afp == NULL) {
|
|
allfamilies = 1;
|
|
afp = &afs[0];
|
|
} else
|
|
allfamilies = 0;
|
|
|
|
ifr.ifr_addr.sa_family = afp->af_af;
|
|
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
|
|
|
|
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) {
|
|
perror("ifconfig: socket");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* XXX is it we are doing a SIOCGIFMETRIC etc for one family.
|
|
* is it possible that the metric and mtu can be different for
|
|
* each family? If so, we have a format problem, because the
|
|
* metric and mtu is printed on the global the flags line.
|
|
*/
|
|
if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
|
|
perror("ioctl (SIOCGIFMETRIC)");
|
|
else
|
|
metric = ifr.ifr_metric;
|
|
|
|
if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0)
|
|
perror("ioctl (SIOCGIFMTU)");
|
|
else
|
|
mtu = ifr.ifr_mtu;
|
|
|
|
printf("%s: ", name);
|
|
printb("flags", flags, IFFBITS);
|
|
if (metric)
|
|
printf(" metric %d", metric);
|
|
if (mtu)
|
|
printf(" mtu %d", mtu);
|
|
putchar('\n');
|
|
|
|
while (addrcount > 0) {
|
|
|
|
info.rti_addrs = ifam->ifam_addrs;
|
|
|
|
/* Expand the compacted addresses */
|
|
rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
|
|
&info);
|
|
|
|
if (!allfamilies) {
|
|
if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family &&
|
|
#ifdef USE_IF_MEDIA
|
|
afp->af_status != media_status &&
|
|
#endif
|
|
afp->af_status != ether_status) {
|
|
p = afp;
|
|
(*p->af_status)(s, &info);
|
|
}
|
|
} else for (p = afs; p->af_name; p++) {
|
|
if (p->af_af == info.rti_info[RTAX_IFA]->sa_family &&
|
|
#ifdef USE_IF_MEDIA
|
|
p->af_status != media_status &&
|
|
#endif
|
|
p->af_status != ether_status)
|
|
(*p->af_status)(s, &info);
|
|
}
|
|
addrcount--;
|
|
ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen);
|
|
}
|
|
if (allfamilies || afp->af_status == ether_status)
|
|
ether_status(s, (struct rt_addrinfo *)sdl);
|
|
#ifdef USE_IF_MEDIA
|
|
if (allfamilies || afp->af_status == media_status)
|
|
media_status(s, NULL);
|
|
#endif
|
|
if (!allfamilies && !p && afp->af_status != media_status &&
|
|
afp->af_status != ether_status)
|
|
warnx("%s has no %s interface address!", name, afp->af_name);
|
|
|
|
close(s);
|
|
return;
|
|
}
|
|
|
|
void
|
|
in_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo * info;
|
|
{
|
|
struct sockaddr_in *sin, null_sin;
|
|
|
|
memset(&null_sin, 0, sizeof(null_sin));
|
|
|
|
sin = (struct sockaddr_in *)info->rti_info[RTAX_IFA];
|
|
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%lx ", (unsigned long)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');
|
|
}
|
|
|
|
void
|
|
ipx_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo * info;
|
|
{
|
|
struct sockaddr_ipx *sipx, null_sipx;
|
|
|
|
memset(&null_sipx, 0, sizeof(null_sipx));
|
|
|
|
sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_IFA];
|
|
printf("\tipx %s ", ipx_ntoa(sipx->sipx_addr));
|
|
|
|
if (flags & IFF_POINTOPOINT) {
|
|
sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_BRD];
|
|
if (!sipx)
|
|
sipx = &null_sipx;
|
|
printf("--> %s ", ipx_ntoa(sipx->sipx_addr));
|
|
}
|
|
putchar('\n');
|
|
}
|
|
|
|
void
|
|
at_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo * info;
|
|
{
|
|
struct sockaddr_at *sat, null_sat;
|
|
struct netrange *nr;
|
|
|
|
memset(&null_sat, 0, sizeof(null_sat));
|
|
|
|
sat = (struct sockaddr_at *)info->rti_info[RTAX_IFA];
|
|
nr = &sat->sat_range.r_netrange;
|
|
printf("\tatalk %d.%d range %d-%d phase %d",
|
|
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
|
|
ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase);
|
|
if (flags & IFF_POINTOPOINT) {
|
|
/* note RTAX_BRD overlap with IFF_BROADCAST */
|
|
sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD];
|
|
if (!sat)
|
|
sat = &null_sat;
|
|
printf("--> %d.%d",
|
|
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node);
|
|
}
|
|
if (flags & IFF_BROADCAST) {
|
|
/* note RTAX_BRD overlap with IFF_POINTOPOINT */
|
|
sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD];
|
|
if (sat)
|
|
printf(" broadcast %d.%d",
|
|
ntohs(sat->sat_addr.s_net),
|
|
sat->sat_addr.s_node);
|
|
}
|
|
|
|
putchar('\n');
|
|
}
|
|
|
|
#ifdef NS
|
|
void
|
|
xns_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo * info;
|
|
{
|
|
struct sockaddr_ns *sns, null_sns;
|
|
|
|
memset(&null_sns, 0, sizeof(null_sns));
|
|
|
|
sns = (struct sockaddr_ns *)info->rti_info[RTAX_IFA];
|
|
printf("\tns %s ", ns_ntoa(sns->sns_addr));
|
|
|
|
if (flags & IFF_POINTOPOINT) {
|
|
sns = (struct sockaddr_ns *)info->rti_info[RTAX_BRD];
|
|
if (!sns)
|
|
sns = &null_sns;
|
|
printf("--> %s ", ns_ntoa(sns->sns_addr));
|
|
}
|
|
|
|
putchar('\n');
|
|
close(s);
|
|
}
|
|
#endif
|
|
|
|
#ifdef ISO
|
|
void
|
|
iso_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo * info;
|
|
{
|
|
struct sockaddr_iso *siso, null_siso;
|
|
|
|
memset(&null_siso, 0, sizeof(null_siso));
|
|
|
|
siso = (struct sockaddr_iso *)info->rti_info[RTAX_IFA];
|
|
printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
|
|
|
|
if (flags & IFF_POINTOPOINT) {
|
|
siso = (struct sockaddr_iso *)info->rti_info[RTAX_BRD];
|
|
if (!siso)
|
|
siso = &null_siso;
|
|
printf("--> %s ", iso_ntoa(&siso->siso_addr));
|
|
}
|
|
|
|
siso = (struct sockaddr_iso *)info->rti_info[RTAX_NETMASK];
|
|
if (siso)
|
|
printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
|
|
|
|
putchar('\n');
|
|
}
|
|
#endif
|
|
|
|
void
|
|
ether_status(s, info)
|
|
int s __unused;
|
|
struct rt_addrinfo *info;
|
|
{
|
|
char *cp;
|
|
int n;
|
|
struct sockaddr_dl *sdl = (struct sockaddr_dl *)info;
|
|
|
|
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)
|
|
const 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(ridreq.ifr_addr), SIN(addreq.ifra_addr),
|
|
SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
|
|
|
|
void
|
|
in_getaddr(s, which)
|
|
const char *s;
|
|
int which;
|
|
{
|
|
register struct sockaddr_in *sin = sintab[which];
|
|
struct hostent *hp;
|
|
struct netent *np;
|
|
|
|
sin->sin_len = sizeof(*sin);
|
|
if (which != MASK)
|
|
sin->sin_family = AF_INET;
|
|
|
|
if (inet_aton(s, &sin->sin_addr))
|
|
return;
|
|
if ((hp = gethostbyname(s)) != 0)
|
|
bcopy(hp->h_addr, (char *)&sin->sin_addr,
|
|
MIN(hp->h_length, sizeof(sin->sin_addr)));
|
|
else if ((np = getnetbyname(s)) != 0)
|
|
sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
|
|
else
|
|
errx(1, "%s: bad value", s);
|
|
}
|
|
|
|
/*
|
|
* Print a value a la the %b format of the kernel's printf
|
|
*/
|
|
void
|
|
printb(s, v, bits)
|
|
const char *s;
|
|
register unsigned v;
|
|
register const char *bits;
|
|
{
|
|
register int i, any = 0;
|
|
register char c;
|
|
|
|
if (bits && *bits == 8)
|
|
printf("%s=%o", s, v);
|
|
else
|
|
printf("%s=%x", s, v);
|
|
bits++;
|
|
if (bits) {
|
|
putchar('<');
|
|
while ((i = *bits++) != '\0') {
|
|
if (v & (1 << (i-1))) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *bits) > 32; bits++)
|
|
putchar(c);
|
|
} else
|
|
for (; *bits > 32; bits++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
}
|
|
|
|
#define SIPX(x) ((struct sockaddr_ipx *) &(x))
|
|
struct sockaddr_ipx *sipxtab[] = {
|
|
SIPX(ridreq.ifr_addr), SIPX(addreq.ifra_addr),
|
|
SIPX(addreq.ifra_mask), SIPX(addreq.ifra_broadaddr)};
|
|
|
|
void
|
|
ipx_getaddr(addr, which)
|
|
const char *addr;
|
|
int which;
|
|
{
|
|
struct sockaddr_ipx *sipx = sipxtab[which];
|
|
|
|
sipx->sipx_family = AF_IPX;
|
|
sipx->sipx_len = sizeof(*sipx);
|
|
sipx->sipx_addr = ipx_addr(addr);
|
|
if (which == MASK)
|
|
printf("Attempt to set IPX netmask will be ineffectual\n");
|
|
}
|
|
|
|
void
|
|
at_getaddr(addr, which)
|
|
const char *addr;
|
|
int which;
|
|
{
|
|
struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr;
|
|
u_int net, node;
|
|
|
|
sat->sat_family = AF_APPLETALK;
|
|
sat->sat_len = sizeof(*sat);
|
|
if (which == MASK)
|
|
errx(1, "AppleTalk does not use netmasks\n");
|
|
if (sscanf(addr, "%u.%u", &net, &node) != 2
|
|
|| net > 0xffff || node > 0xfe)
|
|
errx(1, "%s: illegal address", addr);
|
|
sat->sat_addr.s_net = htons(net);
|
|
sat->sat_addr.s_node = node;
|
|
}
|
|
|
|
/* XXX FIXME -- should use strtoul for better parsing. */
|
|
void
|
|
setatrange(range, dummy, s, afp)
|
|
const char *range;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
u_short first = 123, last = 123;
|
|
|
|
if (sscanf(range, "%hu-%hu", &first, &last) != 2
|
|
|| first == 0 || first > 0xffff
|
|
|| last == 0 || last > 0xffff || first > last)
|
|
errx(1, "%s: illegal net range: %u-%u", range, first, last);
|
|
at_nr.nr_firstnet = htons(first);
|
|
at_nr.nr_lastnet = htons(last);
|
|
}
|
|
|
|
void
|
|
setatphase(phase, dummy, s, afp)
|
|
const char *phase;
|
|
int dummy __unused;
|
|
int s;
|
|
const struct afswtch *afp;
|
|
{
|
|
if (!strcmp(phase, "1"))
|
|
at_nr.nr_phase = 1;
|
|
else if (!strcmp(phase, "2"))
|
|
at_nr.nr_phase = 2;
|
|
else
|
|
errx(1, "%s: illegal phase", phase);
|
|
}
|
|
|
|
void
|
|
checkatrange(struct sockaddr_at *sat)
|
|
{
|
|
if (at_nr.nr_phase == 0)
|
|
at_nr.nr_phase = 2; /* Default phase 2 */
|
|
if (at_nr.nr_firstnet == 0)
|
|
at_nr.nr_firstnet = /* Default range of one */
|
|
at_nr.nr_lastnet = sat->sat_addr.s_net;
|
|
printf("\tatalk %d.%d range %d-%d phase %d\n",
|
|
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
|
|
ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase);
|
|
if ((u_short) ntohs(at_nr.nr_firstnet) >
|
|
(u_short) ntohs(sat->sat_addr.s_net)
|
|
|| (u_short) ntohs(at_nr.nr_lastnet) <
|
|
(u_short) ntohs(sat->sat_addr.s_net))
|
|
errx(1, "AppleTalk address is not in range");
|
|
sat->sat_range.r_netrange = at_nr;
|
|
}
|
|
|
|
#ifdef NS
|
|
#define SNS(x) ((struct sockaddr_ns *) &(x))
|
|
struct sockaddr_ns *snstab[] = {
|
|
SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
|
|
SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)};
|
|
|
|
void
|
|
xns_getaddr(addr, which)
|
|
const char *addr;
|
|
int which;
|
|
{
|
|
struct sockaddr_ns *sns = snstab[which];
|
|
|
|
sns->sns_family = AF_NS;
|
|
sns->sns_len = sizeof(*sns);
|
|
sns->sns_addr = ns_addr(addr);
|
|
if (which == MASK)
|
|
printf("Attempt to set XNS netmask will be ineffectual\n");
|
|
}
|
|
#endif
|
|
|
|
#ifdef ISO
|
|
#define SISO(x) ((struct sockaddr_iso *) &(x))
|
|
struct sockaddr_iso *sisotab[] = {
|
|
SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
|
|
SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};
|
|
|
|
void
|
|
iso_getaddr(addr, which)
|
|
char *addr;
|
|
{
|
|
register struct sockaddr_iso *siso = sisotab[which];
|
|
struct iso_addr *iso_addr();
|
|
siso->siso_addr = *iso_addr(addr);
|
|
|
|
if (which == MASK) {
|
|
siso->siso_len = TSEL(siso) - (caddr_t)(siso);
|
|
siso->siso_nlen = 0;
|
|
} else {
|
|
siso->siso_len = sizeof(*siso);
|
|
siso->siso_family = AF_ISO;
|
|
}
|
|
}
|
|
|
|
void
|
|
setnsellength(val)
|
|
char *val;
|
|
{
|
|
nsellength = atoi(val);
|
|
if (nsellength < 0)
|
|
errx(1, "Negative NSEL length is absurd");
|
|
if (afp == 0 || afp->af_af != AF_ISO)
|
|
errx(1, "Setting NSEL length valid only for iso");
|
|
}
|
|
|
|
void
|
|
fixnsel(s)
|
|
register struct sockaddr_iso *s;
|
|
{
|
|
if (s->siso_family == 0)
|
|
return;
|
|
s->siso_tlen = nsellength;
|
|
}
|
|
|
|
void
|
|
adjust_nsellength()
|
|
{
|
|
fixnsel(sisotab[RIDADDR]);
|
|
fixnsel(sisotab[ADDR]);
|
|
fixnsel(sisotab[DSTADDR]);
|
|
}
|
|
#endif
|