Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/sbin/ifconfig/ifconfig.c

1334 lines
31 KiB
C
Raw Blame History

/* $NetBSD: ifconfig.c,v 1.30 1997/03/26 01:46:49 thorpej Exp $ */
/*
* Copyright (c) 1997 Jason R. Thorpe.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project
* by Jason R. Thorpe.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
#else
static char rcsid[] = "$NetBSD: ifconfig.c,v 1.30 1997/03/26 01:46:49 thorpej Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define NSIP
#include <netns/ns.h>
#include <netns/ns_if.h>
#include <netdb.h>
#define EON
#include <netiso/iso.h>
#include <netiso/iso_var.h>
#include <sys/protosw.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
struct ifreq ifr, ridreq;
struct ifaliasreq addreq;
struct iso_aliasreq iso_addreq;
struct sockaddr_in netmask;
char name[30];
int flags, metric, setaddr, setipdst, doalias;
int clearaddr, s;
int newaddr = 1;
int nsellength = 1;
int af;
int mflag;
void notealias __P((char *, int));
void notrailers __P((char *, int));
void setifaddr __P((char *, int));
void setifdstaddr __P((char *, int));
void setifflags __P((char *, int));
void setifbroadaddr __P((char *));
void setifipdst __P((char *));
void setifmetric __P((char *));
void setifnetmask __P((char *));
void setnsellength __P((char *));
void setsnpaoffset __P((char *));
void setmedia __P((char *));
void setmediaopt __P((char *));
void unsetmediaopt __P((char *));
#define NEXTARG 0xffffff
struct cmd {
char *c_name;
int c_parameter; /* NEXTARG means next argv */
void (*c_func)();
} cmds[] = {
{ "up", IFF_UP, setifflags } ,
{ "down", -IFF_UP, setifflags },
{ "trailers", -1, notrailers },
{ "-trailers", 1, notrailers },
{ "arp", -IFF_NOARP, setifflags },
{ "-arp", IFF_NOARP, setifflags },
{ "debug", IFF_DEBUG, setifflags },
{ "-debug", -IFF_DEBUG, setifflags },
{ "alias", IFF_UP, notealias },
{ "-alias", -IFF_UP, notealias },
{ "delete", -IFF_UP, notealias },
#ifdef notdef
#define EN_SWABIPS 0x1000
{ "swabips", EN_SWABIPS, setifflags },
{ "-swabips", -EN_SWABIPS, setifflags },
#endif
{ "netmask", NEXTARG, setifnetmask },
{ "metric", NEXTARG, setifmetric },
{ "broadcast", NEXTARG, setifbroadaddr },
{ "ipdst", NEXTARG, setifipdst },
#ifndef INET_ONLY
{ "snpaoffset", NEXTARG, setsnpaoffset },
{ "nsellength", NEXTARG, setnsellength },
#endif /* INET_ONLY */
{ "link0", IFF_LINK0, setifflags } ,
{ "-link0", -IFF_LINK0, setifflags } ,
{ "link1", IFF_LINK1, setifflags } ,
{ "-link1", -IFF_LINK1, setifflags } ,
{ "link2", IFF_LINK2, setifflags } ,
{ "-link2", -IFF_LINK2, setifflags } ,
{ "media", NEXTARG, setmedia },
{ "mediaopt", NEXTARG, setmediaopt },
{ "-mediaopt", NEXTARG, unsetmediaopt },
{ 0, 0, setifaddr },
{ 0, 0, setifdstaddr },
};
void adjust_nsellength();
int getinfo __P((struct ifreq *));
void getsock __P((int));
void printall __P((void));
void printb __P((char *, unsigned short, char *));
void status __P((const u_int8_t *, int));
void usage();
void domediaopt __P((char *, int));
int get_media_subtype __P((int, char *));
int get_media_options __P((int, char *));
int lookup_media_word __P((struct ifmedia_description *, char *));
void print_media_word __P((int));
/*
* XNS support liberally adapted from code written at the University of
* Maryland principally by James O'Toole and Chris Torek.
*/
void in_status __P((int));
void in_getaddr __P((char *, int));
void xns_status __P((int));
void xns_getaddr __P((char *, int));
void iso_status __P((int));
void iso_getaddr __P((char *, int));
/* Known address families */
struct afswtch {
char *af_name;
short af_af;
void (*af_status)();
void (*af_getaddr)();
u_long af_difaddr;
u_long af_aifaddr;
caddr_t af_ridreq;
caddr_t af_addreq;
} afs[] = {
#define C(x) ((caddr_t) &x)
{ "inet", AF_INET, in_status, in_getaddr,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
#ifndef INET_ONLY /* small version, for boot media */
{ "ns", AF_NS, xns_status, xns_getaddr,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
{ "iso", AF_ISO, iso_status, iso_getaddr,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(iso_addreq) },
#endif /* INET_ONLY */
{ 0, 0, 0, 0 }
};
struct afswtch *afp; /*the address family being set or asked about*/
struct afswtch *lookup_af __P((const char *));
int
main(argc, argv)
int argc;
char *argv[];
{
extern int optind;
int ch, aflag;
/* Parse command-line options */
aflag = mflag = 0;
while ((ch = getopt(argc, argv, "am")) != -1) {
switch (ch) {
case 'a':
aflag = 1;
break;
case 'm':
mflag = 1;
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
/* -a means print all interfaces */
if (aflag) {
if (argc > 1)
usage();
else if (argc == 1) {
afp = lookup_af(argv[0]);
if (afp == NULL)
usage();
} else
afp = afs;
af = ifr.ifr_addr.sa_family = afp->af_af;
printall();
exit(0);
}
/* Make sure there's an interface name. */
if (argc < 1)
usage();
strncpy(name, argv[0], sizeof(name));
argc--; argv++;
/* Check for address family. */
afp = NULL;
if (argc > 0) {
afp = lookup_af(argv[0]);
if (afp != NULL) {
argv++;
argc--;
}
}
if (afp == NULL)
afp = afs;
af = ifr.ifr_addr.sa_family = afp->af_af;
/* Get information about the interface. */
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (getinfo(&ifr) < 0)
exit(1);
/* No more arguments means interface status. */
if (argc == 0) {
status(NULL, 0);
exit(0);
}
/* Process commands. */
while (argc > 0) {
register struct cmd *p;
for (p = cmds; p->c_name; p++)
if (strcmp(argv[0], 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 (argc < 2)
errx(1, "'%s' requires argument",
p->c_name);
(*p->c_func)(argv[1]);
argc--, argv++;
} else
(*p->c_func)(argv[0], p->c_parameter);
}
argc--, argv++;
}
#ifndef INET_ONLY
if (af == AF_ISO)
adjust_nsellength();
if (setipdst && af==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)
warn("encapsulation routing");
}
#endif /* INET_ONLY */
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
warn("SIOCDIFADDR");
}
}
if (newaddr) {
strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
warn("SIOCAIFADDR");
}
exit(0);
}
struct afswtch *
lookup_af(cp)
const char *cp;
{
struct afswtch *a;
for (a = afs; a->af_name != NULL; a++)
if (strcmp(a->af_name, cp) == 0)
return (a);
return (NULL);
}
void
getsock(naf)
int naf;
{
static int oaf = -1;
if (oaf == naf)
return;
if (oaf != -1)
close(s);
s = socket(naf, SOCK_DGRAM, 0);
if (s < 0)
oaf = -1;
else
oaf = naf;
}
int
getinfo(ifr)
struct ifreq *ifr;
{
getsock(af);
if (s < 0)
err(1, "socket");
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)ifr) < 0) {
warn("SIOCGIFFLAGS");
return (-1);
}
flags = ifr->ifr_flags;
if (ioctl(s, SIOCGIFMETRIC, (caddr_t)ifr) < 0) {
warn("SIOCGIFMETRIC");
metric = 0;
} else
metric = ifr->ifr_metric;
return (0);
}
void
printall()
{
char inbuf[8192];
const struct sockaddr_dl *sdl = NULL;
struct ifconf ifc;
struct ifreq ifreq, *ifr;
int i;
ifc.ifc_len = sizeof(inbuf);
ifc.ifc_buf = inbuf;
getsock(af);
if (s < 0)
err(1, "socket");
if (ioctl(s, SIOCGIFCONF, &ifc) < 0)
err(1, "SIOCGIFCONF");
ifr = ifc.ifc_req;
ifreq.ifr_name[0] = '\0';
for (i = 0; i < ifc.ifc_len; ) {
ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i);
i += sizeof(ifr->ifr_name) +
(ifr->ifr_addr.sa_len > sizeof(struct sockaddr)
? ifr->ifr_addr.sa_len
: sizeof(struct sockaddr));
if (ifr->ifr_addr.sa_family == AF_LINK)
sdl = (const struct sockaddr_dl *) &ifr->ifr_addr;
if (!strncmp(ifreq.ifr_name, ifr->ifr_name,
sizeof(ifr->ifr_name)))
continue;
strncpy(name, ifr->ifr_name, sizeof(ifr->ifr_name));
ifreq = *ifr;
if (getinfo(&ifreq) < 0)
continue;
if (sdl == NULL) {
status(NULL, 0);
} else {
status(LLADDR(sdl), sdl->sdl_alen);
sdl = NULL;
}
}
}
#define RIDADDR 0
#define ADDR 1
#define MASK 2
#define DSTADDR 3
/*ARGSUSED*/
void
setifaddr(addr, param)
char *addr;
int param;
{
/*
* 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)
char *addr;
{
(*afp->af_getaddr)(addr, MASK);
}
void
setifbroadaddr(addr)
char *addr;
{
(*afp->af_getaddr)(addr, DSTADDR);
}
void
setifipdst(addr)
char *addr;
{
in_getaddr(addr, DSTADDR);
setipdst++;
clearaddr = 0;
newaddr = 0;
}
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
/*ARGSUSED*/
void
notealias(addr, param)
char *addr;
int param;
{
if (setaddr && doalias == 0 && param < 0)
memcpy(rqtosa(af_ridreq),
rqtosa(af_addreq),
rqtosa(af_addreq)->sa_len);
doalias = param;
if (param < 0) {
clearaddr = 1;
newaddr = 0;
} else
clearaddr = 0;
}
/*ARGSUSED*/
void
notrailers(vname, value)
char *vname;
int value;
{
printf("Note: trailers are no longer sent, but always received\n");
}
/*ARGSUSED*/
void
setifdstaddr(addr, param)
char *addr;
int param;
{
(*afp->af_getaddr)(addr, DSTADDR);
}
void
setifflags(vname, value)
char *vname;
int value;
{
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0)
err(1, "SIOCGIFFLAGS");
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)
err(1, "SIOCSIFFLAGS");
}
void
setifmetric(val)
char *val;
{
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
ifr.ifr_metric = atoi(val);
if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
warn("SIOCSIFMETRIC");
}
void
setmedia(val)
char *val;
{
struct ifmediareq ifmr;
int first_type, subtype;
memset(&ifmr, 0, sizeof(ifmr));
strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
ifmr.ifm_count = 1;
ifmr.ifm_ulist = &first_type;
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
/*
* If we get E2BIG, the kernel is telling us
* that there are more, so we can ignore it.
*/
if (errno != E2BIG)
err(1, "SIOCGIFMEDIA");
}
if (ifmr.ifm_count == 0)
errx(1, "%s: no media types?", name);
/*
* We are primarily concerned with the top-level type.
* However, "current" may be only IFM_NONE, so we just look
* for the top-level type in the first "supported type"
* entry.
*
* (I'm assuming that all supported media types for a given
* interface will be the same top-level type..)
*/
subtype = get_media_subtype(IFM_TYPE(first_type), val);
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_media = (ifmr.ifm_current & ~(IFM_NMASK|IFM_TMASK)) |
IFM_TYPE(first_type) | subtype;
if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
err(1, "SIOCSIFMEDIA");
}
void
setmediaopt(val)
char *val;
{
domediaopt(val, 0);
}
void
unsetmediaopt(val)
char *val;
{
domediaopt(val, 1);
}
void
domediaopt(val, clear)
char *val;
int clear;
{
struct ifmediareq ifmr;
int *mwords, options;
memset(&ifmr, 0, sizeof(ifmr));
strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
/*
* We must go through the motions of reading all
* supported media because we need to know both
* the current media type and the top-level type.
*/
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
if (ifmr.ifm_count == 0)
errx(1, "%s: no media types?", name);
mwords = (int *)malloc(ifmr.ifm_count * sizeof(int));
if (mwords == NULL)
err(1, "malloc");
ifmr.ifm_ulist = mwords;
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
options = get_media_options(IFM_TYPE(mwords[0]), val);
free(mwords);
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_media = ifmr.ifm_current;
if (clear)
ifr.ifr_media &= ~options;
else
ifr.ifr_media |= options;
if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
err(1, "SIOCSIFMEDIA");
}
/**********************************************************************
* A good chunk of this is duplicated from sys/net/ifmedia.c
**********************************************************************/
struct ifmedia_description ifm_type_descriptions[] =
IFM_TYPE_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_ethernet_aliases[] =
IFM_SUBTYPE_ETHERNET_ALIASES;
struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_tokenring_descriptions[] =
IFM_SUBTYPE_TOKENRING_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_tokenring_aliases[] =
IFM_SUBTYPE_TOKENRING_ALIASES;
struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] =
IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_fddi_descriptions[] =
IFM_SUBTYPE_FDDI_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_fddi_aliases[] =
IFM_SUBTYPE_FDDI_ALIASES;
struct ifmedia_description ifm_subtype_fddi_option_descriptions[] =
IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_shared_descriptions[] =
IFM_SUBTYPE_SHARED_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_shared_aliases[] =
IFM_SUBTYPE_SHARED_ALIASES;
struct ifmedia_description ifm_shared_option_descriptions[] =
IFM_SHARED_OPTION_DESCRIPTIONS;
struct ifmedia_type_to_subtype {
struct {
struct ifmedia_description *desc;
int alias;
} subtypes[5];
struct {
struct ifmedia_description *desc;
int alias;
} options[3];
};
/* must be in the same order as IFM_TYPE_DESCRIPTIONS */
struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] = {
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_ethernet_descriptions[0], 0 },
{ &ifm_subtype_ethernet_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_ethernet_option_descriptions[0], 1 },
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_tokenring_descriptions[0], 0 },
{ &ifm_subtype_tokenring_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_tokenring_option_descriptions[0], 1 },
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_fddi_descriptions[0], 0 },
{ &ifm_subtype_fddi_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_fddi_option_descriptions[0], 1 },
{ NULL, 0 },
},
},
};
int
get_media_subtype(type, val)
int type;
char *val;
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int rval, i;
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (type == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL)
errx(1, "unknown media type 0x%x", type);
for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
rval = lookup_media_word(ttos->subtypes[i].desc, val);
if (rval != -1)
return (rval);
}
errx(1, "unknown media subtype: %s", val);
/* NOTREACHED */
}
int
get_media_options(type, val)
int type;
char *val;
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
char *optlist;
int option, i, rval = 0;
/* We muck with the string, so copy it. */
optlist = strdup(val);
if (optlist == NULL)
err(1, "strdup");
val = optlist;
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (type == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL)
errx(1, "unknown media type 0x%x", type);
/*
* Look up the options in the user-provided comma-separated
* list.
*/
for (; (val = strtok(val, ",")) != NULL; val = NULL) {
for (i = 0; ttos->options[i].desc != NULL; i++) {
option = lookup_media_word(ttos->options[i].desc, val);
if (option != -1)
break;
}
if (option == 0)
errx(1, "unknown option: %s", val);
rval |= option;
}
free(optlist);
return (rval);
}
int
lookup_media_word(desc, val)
struct ifmedia_description *desc;
char *val;
{
for (; desc->ifmt_string != NULL; desc++)
if (strcasecmp(desc->ifmt_string, val) == 0)
return (desc->ifmt_word);
return (-1);
}
void
print_media_word(ifmw)
int ifmw;
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int seen_option = 0, i;
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (IFM_TYPE(ifmw) == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL) {
printf("<unknown type>");
return;
}
/*
* Don't print the top-level type; it's not like we can
* change it, or anything.
*/
/* Find subtype. */
for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
if (ttos->subtypes[i].alias)
continue;
for (desc = ttos->subtypes[i].desc;
desc->ifmt_string != NULL; desc++) {
if (IFM_SUBTYPE(ifmw) == desc->ifmt_word)
goto got_subtype;
}
}
/* Falling to here means unknown subtype. */
printf("<unknown subtype>");
return;
got_subtype:
printf("%s", desc->ifmt_string);
/* Find options. */
for (i = 0; ttos->options[i].desc != NULL; i++) {
if (ttos->options[i].alias)
continue;
for (desc = ttos->options[i].desc;
desc->ifmt_string != NULL; desc++) {
if (ifmw & desc->ifmt_word) {
if (seen_option == 0)
printf(" <");
printf("%s%s", seen_option++ ? "," : "",
desc->ifmt_string);
}
}
}
printf("%s", seen_option ? ">" : "");
}
/**********************************************************************
* ...until here.
**********************************************************************/
#define IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\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(ap, alen)
const u_int8_t *ap;
int alen;
{
register struct afswtch *p = afp;
struct ifmediareq ifmr;
int *media_list, i;
printf("%s: ", name);
printb("flags", flags, IFFBITS);
if (metric)
printf(" metric %d", metric);
putchar('\n');
if (ap && alen > 0) {
printf("\taddress:");
for (i = 0; i < alen; i++, ap++)
printf("%c%02x", i > 0 ? ':' : ' ', *ap);
putchar('\n');
}
memset(&ifmr, 0, sizeof(ifmr));
strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
/*
* Interface doesn't support SIOC{G,S}IFMEDIA.
*/
goto proto_status;
}
if (ifmr.ifm_count == 0) {
warnx("%s: no media types?", name);
goto proto_status;
}
media_list = (int *)malloc(ifmr.ifm_count * sizeof(int));
if (media_list == NULL)
err(1, "malloc");
ifmr.ifm_ulist = media_list;
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
printf("\tmedia: ");
print_media_word(ifmr.ifm_current);
if (ifmr.ifm_active != ifmr.ifm_current) {
putchar(' ');
putchar('(');
print_media_word(ifmr.ifm_active);
putchar(')');
}
if (ifmr.ifm_status & IFM_AVALID) {
printf(" status: ");
switch (IFM_TYPE(ifmr.ifm_active)) {
case IFM_ETHER:
if (ifmr.ifm_status & IFM_ACTIVE)
printf("active");
else
printf("no carrier");
break;
case IFM_FDDI:
case IFM_TOKEN:
if (ifmr.ifm_status & IFM_ACTIVE)
printf("inserted");
else
printf("no ring");
break;
}
}
putchar('\n');
if (mflag) {
printf("\tsupported media:");
for (i = 0; i < ifmr.ifm_count; i++) {
putchar(' ');
print_media_word(media_list[i]);
}
putchar('\n');
}
free(media_list);
proto_status:
if ((p = afp) != NULL) {
(*p->af_status)(1);
} else for (p = afs; p->af_name; p++) {
ifr.ifr_addr.sa_family = p->af_af;
(*p->af_status)(0);
}
}
void
in_status(force)
int force;
{
struct sockaddr_in *sin;
char *inet_ntoa();
getsock(AF_INET);
if (s < 0) {
if (errno == EPROTONOSUPPORT)
return;
err(1, "socket");
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
} else
warn("SIOCGIFADDR");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sin = (struct sockaddr_in *)&ifr.ifr_addr;
printf("\tinet %s ", inet_ntoa(sin->sin_addr));
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) {
if (errno != EADDRNOTAVAIL)
warn("SIOCGIFNETMASK");
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
} else
netmask.sin_addr =
((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr;
if (flags & IFF_POINTOPOINT) {
if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
else
warn("SIOCGIFDSTADDR");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sin = (struct sockaddr_in *)&ifr.ifr_dstaddr;
printf("--> %s ", inet_ntoa(sin->sin_addr));
}
printf("netmask 0x%x ", ntohl(netmask.sin_addr.s_addr));
if (flags & IFF_BROADCAST) {
if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
else
warn("SIOCGIFBRDADDR");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sin = (struct sockaddr_in *)&ifr.ifr_addr;
if (sin->sin_addr.s_addr != 0)
printf("broadcast %s", inet_ntoa(sin->sin_addr));
}
putchar('\n');
}
#ifndef INET_ONLY
void
xns_status(force)
int force;
{
struct sockaddr_ns *sns;
getsock(AF_NS);
if (s < 0) {
if (errno == EPROTONOSUPPORT)
return;
err(1, "socket");
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
} else
warn("SIOCGIFADDR");
}
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
sns = (struct sockaddr_ns *)&ifr.ifr_addr;
printf("\tns %s ", ns_ntoa(sns->sns_addr));
if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */
if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
else
warn("SIOCGIFDSTADDR");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr;
printf("--> %s ", ns_ntoa(sns->sns_addr));
}
putchar('\n');
}
void
iso_status(force)
int force;
{
struct sockaddr_iso *siso;
getsock(AF_ISO);
if (s < 0) {
if (errno == EPROTONOSUPPORT)
return;
err(1, "socket");
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
} else
warn("SIOCGIFADDR");
}
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
siso = (struct sockaddr_iso *)&ifr.ifr_addr;
printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
else
warn("SIOCGIFNETMASK");
} else {
printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
}
if (flags & IFF_POINTOPOINT) {
if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
else
warn("SIOCGIFDSTADDR");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
siso = (struct sockaddr_iso *)&ifr.ifr_addr;
printf("--> %s ", iso_ntoa(&siso->siso_addr));
}
putchar('\n');
}
#endif /* INET_ONLY */
struct in_addr inet_makeaddr();
#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)
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) == 0) {
if (hp = gethostbyname(s))
memcpy(&sin->sin_addr, hp->h_addr, hp->h_length);
else if (np = getnetbyname(s))
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)
char *s;
register char *bits;
register unsigned short v;
{
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++) {
if (v & (1 << (i-1))) {
if (any)
putchar(',');
any = 1;
for (; (c = *bits) > 32; bits++)
putchar(c);
} else
for (; *bits > 32; bits++)
;
}
putchar('>');
}
}
#ifndef INET_ONLY
#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)
char *addr;
int which;
{
struct sockaddr_ns *sns = snstab[which];
struct ns_addr ns_addr();
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");
}
#define SISO(x) ((struct sockaddr_iso *) &(x))
struct sockaddr_iso *sisotab[] = {
SISO(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;
int which;
{
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
setsnpaoffset(val)
char *val;
{
iso_addreq.ifra_snpaoffset = atoi(val);
}
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 /* INET_ONLY */
void
usage()
{
fprintf(stderr, "usage: ifconfig [ -m ] interface\n%s%s%s%s%s%s%s%s%s",
"\t[ af [ address [ dest_addr ] ] [ up ] [ down ] ",
"[ netmask mask ] ]\n",
"\t[ metric n ]\n",
"\t[ arp | -arp ]\n",
"\t[ media mtype ]\n",
"\t[ mediaopt mopts ]\n",
"\t[ -mediaopt mopts ]\n",
"\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n",
" ifconfig -a [ -m ] [ af ]\n");
exit(1);
}
Reference in New Issue View Git Blame Copy Permalink