FreeBSD-5.3/sbin/ifconfig/ifconfig.c
/*
* 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.
* 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 const 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";
#endif
static const char rcsid[] =
"$FreeBSD: src/sbin/ifconfig/ifconfig.c,v 1.106.2.1 2004/09/07 23:21:10 brooks Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/module.h>
#include <sys/linker.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/route.h>
/* IP */
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <arpa/inet.h>
#include <netdb.h>
#ifdef INET6
#include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */
#endif
#ifndef NO_IPX
/* IPX */
#define IPXIP
#define IPTUNNEL
#include <netipx/ipx.h>
#include <netipx/ipx_if.h>
#endif
/* Appletalk */
#include <netatalk/at.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ifaddrs.h>
#include "ifconfig.h"
/* wrapper for KAME-special getnameinfo() */
#ifndef NI_WITHSCOPEID
#define NI_WITHSCOPEID 0
#endif
/*
* Since "struct ifreq" is composed of various union members, callers
* should pay special attention to interprete the value.
* (.e.g. little/big endian difference in the structure.)
*/
struct ifreq ifr, ridreq;
struct ifaliasreq addreq;
#ifdef INET6
struct in6_ifreq in6_ridreq;
struct in6_aliasreq in6_addreq =
{ { 0 },
{ 0 },
{ 0 },
{ 0 },
0,
{ 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } };
#endif
struct sockaddr_in netmask;
struct netrange at_nr; /* AppleTalk net range */
char name[IFNAMSIZ];
int flags;
int setaddr;
int setipdst;
int setmask;
int doalias;
int clearaddr;
int newaddr = 1;
#ifdef INET6
static int ip6lifetime;
#endif
struct afswtch;
int supmedia = 0;
int listcloners = 0;
int printname = 0; /* Print the name of the created interface. */
#ifdef INET6
char addr_buf[MAXHOSTNAMELEN *2 + 1]; /*for getnameinfo()*/
#endif
void Perror(const char *cmd);
void checkatrange(struct sockaddr_at *);
int ifconfig(int argc, char *const *argv, const struct afswtch *afp);
void notealias(const char *, int, int, const struct afswtch *afp);
void list_cloners(void);
void printb(const char *s, unsigned value, const char *bits);
void rt_xaddrs(caddr_t, caddr_t, struct rt_addrinfo *);
void status(const struct afswtch *afp, int addrcount,
struct sockaddr_dl *sdl, struct if_msghdr *ifm,
struct ifa_msghdr *ifam);
void tunnel_status(int s);
void usage(void);
void ifmaybeload(char *name);
#ifdef INET6
void in6_fillscopeid(struct sockaddr_in6 *sin6);
int prefix(void *, int);
static char *sec2str(time_t);
int explicit_prefix = 0;
#endif
typedef void c_func(const char *cmd, int arg, int s, const struct afswtch *afp);
typedef void c_func2(const char *arg, const char *arg2, int s, const struct afswtch *afp);
c_func setatphase, setatrange;
c_func setifaddr, setifbroadaddr, setifdstaddr, setifnetmask;
c_func2 settunnel;
c_func deletetunnel;
#ifdef INET6
c_func setifprefixlen;
c_func setip6flags;
c_func setip6pltime;
c_func setip6vltime;
c_func2 setip6lifetime;
c_func setip6eui64;
#endif
c_func setifipdst;
c_func setifflags, setifmetric, setifmtu, setifcap;
c_func clone_destroy;
c_func setifname;
void clone_create(void);
#define NEXTARG 0xffffff
#define NEXTARG2 0xfffffe
const
struct cmd {
const char *c_name;
int c_parameter; /* NEXTARG means next argv */
void (*c_func)(const char *, int, int, const struct afswtch *afp);
void (*c_func2)(const char *, const char *, int, const struct afswtch *afp);
} cmds[] = {
{ "up", IFF_UP, setifflags } ,
{ "down", -IFF_UP, setifflags },
{ "arp", -IFF_NOARP, setifflags },
{ "-arp", IFF_NOARP, setifflags },
{ "debug", IFF_DEBUG, setifflags },
{ "-debug", -IFF_DEBUG, setifflags },
{ "promisc", IFF_PPROMISC, setifflags },
{ "-promisc", -IFF_PPROMISC, setifflags },
{ "add", IFF_UP, notealias },
{ "alias", IFF_UP, notealias },
{ "-alias", -IFF_UP, notealias },
{ "delete", -IFF_UP, notealias },
{ "remove", -IFF_UP, notealias },
#ifdef notdef
#define EN_SWABIPS 0x1000
{ "swabips", EN_SWABIPS, setifflags },
{ "-swabips", -EN_SWABIPS, setifflags },
#endif
{ "netmask", NEXTARG, setifnetmask },
#ifdef INET6
{ "prefixlen", NEXTARG, setifprefixlen },
{ "anycast", IN6_IFF_ANYCAST, setip6flags },
{ "tentative", IN6_IFF_TENTATIVE, setip6flags },
{ "-tentative", -IN6_IFF_TENTATIVE, setip6flags },
{ "deprecated", IN6_IFF_DEPRECATED, setip6flags },
{ "-deprecated", -IN6_IFF_DEPRECATED, setip6flags },
{ "autoconf", IN6_IFF_AUTOCONF, setip6flags },
{ "-autoconf", -IN6_IFF_AUTOCONF, setip6flags },
{ "pltime", NEXTARG, setip6pltime },
{ "vltime", NEXTARG, setip6vltime },
{ "eui64", 0, setip6eui64 },
#endif
{ "range", NEXTARG, setatrange },
{ "phase", NEXTARG, setatphase },
{ "metric", NEXTARG, setifmetric },
{ "broadcast", NEXTARG, setifbroadaddr },
{ "ipdst", NEXTARG, setifipdst },
{ "tunnel", NEXTARG2, NULL, settunnel },
{ "deletetunnel", 0, deletetunnel },
{ "link0", IFF_LINK0, setifflags },
{ "-link0", -IFF_LINK0, setifflags },
{ "link1", IFF_LINK1, setifflags },
{ "-link1", -IFF_LINK1, setifflags },
{ "link2", IFF_LINK2, setifflags },
{ "-link2", -IFF_LINK2, setifflags },
{ "monitor", IFF_MONITOR, setifflags },
{ "-monitor", -IFF_MONITOR, setifflags },
{ "staticarp", IFF_STATICARP, setifflags },
{ "-staticarp", -IFF_STATICARP, setifflags },
#ifdef USE_IF_MEDIA
{ "media", NEXTARG, setmedia },
{ "mode", NEXTARG, setmediamode },
{ "mediaopt", NEXTARG, setmediaopt },
{ "-mediaopt", NEXTARG, unsetmediaopt },
#endif
#ifdef USE_VLANS
{ "vlan", NEXTARG, setvlantag },
{ "vlandev", NEXTARG, setvlandev },
{ "-vlandev", NEXTARG, unsetvlandev },
#endif
#if 0
/* XXX `create' special-cased below */
{"create", 0, clone_create },
{"plumb", 0, clone_create },
#endif
{"destroy", 0, clone_destroy },
{"unplumb", 0, clone_destroy },
#ifdef USE_IEEE80211
{ "ssid", NEXTARG, set80211ssid },
{ "nwid", NEXTARG, set80211ssid },
{ "stationname", NEXTARG, set80211stationname },
{ "station", NEXTARG, set80211stationname }, /* BSD/OS */
{ "channel", NEXTARG, set80211channel },
{ "authmode", NEXTARG, set80211authmode },
{ "powersavemode", NEXTARG, set80211powersavemode },
{ "powersave", 1, set80211powersave },
{ "-powersave", 0, set80211powersave },
{ "powersavesleep", NEXTARG, set80211powersavesleep },
{ "wepmode", NEXTARG, set80211wepmode },
{ "wep", 1, set80211wep },
{ "-wep", 0, set80211wep },
{ "weptxkey", NEXTARG, set80211weptxkey },
{ "wepkey", NEXTARG, set80211wepkey },
{ "nwkey", NEXTARG, set80211nwkey }, /* NetBSD */
{ "-nwkey", 0, set80211wep }, /* NetBSD */
{ "rtsthreshold",NEXTARG, set80211rtsthreshold },
{ "protmode", NEXTARG, set80211protmode },
{ "txpower", NEXTARG, set80211txpower },
#endif
#ifdef USE_MAC
{ "maclabel", NEXTARG, setifmaclabel },
#endif
{ "rxcsum", IFCAP_RXCSUM, setifcap },
{ "-rxcsum", -IFCAP_RXCSUM, setifcap },
{ "txcsum", IFCAP_TXCSUM, setifcap },
{ "-txcsum", -IFCAP_TXCSUM, setifcap },
{ "netcons", IFCAP_NETCONS, setifcap },
{ "-netcons", -IFCAP_NETCONS, setifcap },
{ "polling", IFCAP_POLLING, setifcap },
{ "-polling", -IFCAP_POLLING, setifcap },
{ "vlanmtu", IFCAP_VLAN_MTU, setifcap },
{ "-vlanmtu", -IFCAP_VLAN_MTU, setifcap },
{ "vlanhwtag", IFCAP_VLAN_HWTAGGING, setifcap },
{ "-vlanhwtag", -IFCAP_VLAN_HWTAGGING, setifcap },
{ "normal", -IFF_LINK0, setifflags },
{ "compress", IFF_LINK0, setifflags },
{ "noicmp", IFF_LINK1, setifflags },
{ "mtu", NEXTARG, setifmtu },
{ "name", NEXTARG, setifname },
{ 0, 0, setifaddr },
{ 0, 0, setifdstaddr },
};
/*
* XNS support liberally adapted from code written at the University of
* Maryland principally by James O'Toole and Chris Torek.
*/
typedef void af_status(int, struct rt_addrinfo *);
typedef void af_getaddr(const char *, int);
typedef void af_getprefix(const char *, int);
af_status in_status, at_status, link_status;
af_getaddr in_getaddr, at_getaddr, link_getaddr;
#ifndef NO_IPX
af_status ipx_status;
af_getaddr ipx_getaddr;
#endif
#ifdef INET6
af_status in6_status;
af_getaddr in6_getaddr;
af_getprefix in6_getprefix;
#endif /*INET6*/
/* Known address families */
const
struct afswtch {
const char *af_name;
short af_af;
af_status *af_status;
af_getaddr *af_getaddr;
af_getprefix *af_getprefix;
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, NULL,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
#ifdef INET6
{ "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix,
SIOCDIFADDR_IN6, SIOCAIFADDR_IN6,
C(in6_ridreq), C(in6_addreq) },
#endif /*INET6*/
#ifndef NO_IPX
{ "ipx", AF_IPX, ipx_status, ipx_getaddr, NULL,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
#endif
{ "atalk", AF_APPLETALK, at_status, at_getaddr, NULL,
SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) },
{ "link", AF_LINK, link_status, link_getaddr, NULL,
0, SIOCSIFLLADDR, NULL, C(ridreq) },
{ "ether", AF_LINK, link_status, link_getaddr, NULL,
0, SIOCSIFLLADDR, NULL, C(ridreq) },
{ "lladdr", AF_LINK, link_status, link_getaddr, NULL,
0, SIOCSIFLLADDR, NULL, C(ridreq) },
#if 0 /* XXX conflicts with the media command */
#ifdef USE_IF_MEDIA
{ "media", AF_UNSPEC, media_status, NULL, NULL, }, /* XXX not real!! */
#endif
#ifdef USE_VLANS
{ "vlan", AF_UNSPEC, vlan_status, NULL, NULL, }, /* XXX not real!! */
#endif
#ifdef USE_IEEE80211
{ "ieee80211", AF_UNSPEC, ieee80211_status, NULL, NULL, }, /* XXX not real!! */
#endif
#ifdef USE_MAC
{ "maclabel", AF_UNSPEC, maclabel_status, NULL, NULL, },
#endif
#endif
{ 0, 0, 0, 0 }
};
/*
* Expand the compacted form of addresses as returned via the
* configuration read via sysctl().
*/
void
rt_xaddrs(caddr_t cp, caddr_t cplim, struct rt_addrinfo *rtinfo)
{
struct sockaddr *sa;
int i;
memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info));
for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) {
if ((rtinfo->rti_addrs & (1 << i)) == 0)
continue;
rtinfo->rti_info[i] = sa = (struct sockaddr *)cp;
cp += SA_SIZE(sa);
}
}
void
usage(void)
{
#ifndef INET6
fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
"usage: ifconfig interface address_family [address [dest_address]]",
" [parameters]",
" ifconfig -C",
" ifconfig interface create",
" ifconfig -a [-d] [-m] [-u] [address_family]",
" ifconfig -l [-d] [-u] [address_family]",
" ifconfig [-d] [-m] [-u]");
#else
fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
"usage: ifconfig [-L] interface address_family [address [dest_address]]",
" [parameters]",
" ifconfig -C",
" ifconfig interface create",
" ifconfig -a [-L] [-d] [-m] [-u] [address_family]",
" ifconfig -l [-d] [-u] [address_family]",
" ifconfig [-L] [-d] [-m] [-u]");
#endif
exit(1);
}
int
main(int argc, char *argv[])
{
int c;
int all, namesonly, downonly, uponly;
int need_nl = 0, count = 0;
const struct afswtch *afp = 0;
int addrcount, ifindex;
struct if_msghdr *ifm, *nextifm;
struct ifa_msghdr *ifam;
struct sockaddr_dl *sdl;
char *buf, *lim, *next;
size_t needed;
int mib[6];
/* Parse leading line options */
all = downonly = uponly = namesonly = 0;
while ((c = getopt(argc, argv, "adlmuC"
#ifdef INET6
"L"
#endif
)) != -1) {
switch (c) {
case 'a': /* scan all interfaces */
all++;
break;
case 'd': /* restrict scan to "down" interfaces */
downonly++;
break;
case 'l': /* scan interface names only */
namesonly++;
break;
case 'm': /* show media choices in status */
supmedia = 1;
break;
case 'u': /* restrict scan to "up" interfaces */
uponly++;
break;
case 'C':
listcloners = 1;
break;
#ifdef INET6
case 'L':
ip6lifetime++; /* print IPv6 address lifetime */
break;
#endif
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (listcloners) {
/* -C must be solitary */
if (all || supmedia || uponly || downonly || namesonly ||
argc > 0)
usage();
list_cloners();
exit(0);
}
/* -l cannot be used with -a or -m */
if (namesonly && (all || supmedia))
usage();
/* nonsense.. */
if (uponly && downonly)
usage();
/* no arguments is equivalent to '-a' */
if (!namesonly && argc < 1)
all = 1;
/* -a and -l allow an address family arg to limit the output */
if (all || namesonly) {
if (argc > 1)
usage();
ifindex = 0;
if (argc == 1) {
for (afp = afs; afp->af_name; afp++)
if (strcmp(afp->af_name, *argv) == 0) {
argc--, argv++;
break;
}
if (afp->af_name == NULL)
usage();
/* leave with afp non-zero */
}
} else {
/* not listing, need an argument */
if (argc < 1)
usage();
strncpy(name, *argv, sizeof(name));
argc--, argv++;
/* check and maybe load support for this interface */
ifmaybeload(name);
/*
* NOTE: We must special-case the `create' command right
* here as we would otherwise fail when trying to find
* the interface.
*/
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
strcmp(argv[0], "plumb") == 0)) {
clone_create();
argc--, argv++;
if (argc == 0)
goto end;
}
ifindex = if_nametoindex(name);
if (ifindex == 0)
errx(1, "interface %s does not exist", name);
}
/* Check for address family */
if (argc > 0) {
for (afp = afs; afp->af_name; afp++)
if (strcmp(afp->af_name, *argv) == 0) {
argc--, argv++;
break;
}
if (afp->af_name == NULL)
afp = NULL; /* not a family, NULL */
}
retry:
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0; /* address family */
mib[4] = NET_RT_IFLIST;
mib[5] = ifindex; /* interface index */
/* if particular family specified, only ask about it */
if (afp)
mib[3] = afp->af_af;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
errx(1, "iflist-sysctl-estimate");
if ((buf = malloc(needed)) == NULL)
errx(1, "malloc");
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
if (errno == ENOMEM && count++ < 10) {
warnx("Routing table grew, retrying");
free(buf);
sleep(1);
goto retry;
}
errx(1, "actual retrieval of interface table");
}
lim = buf + needed;
next = buf;
while (next < lim) {
ifm = (struct if_msghdr *)next;
if (ifm->ifm_type == RTM_IFINFO) {
if (ifm->ifm_data.ifi_datalen == 0)
ifm->ifm_data.ifi_datalen = sizeof(struct if_data);
sdl = (struct sockaddr_dl *)((char *)ifm + sizeof(struct if_msghdr) -
sizeof(struct if_data) + ifm->ifm_data.ifi_datalen);
flags = ifm->ifm_flags;
} else {
fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n");
fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO,
ifm->ifm_type);
fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen);
fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next,
lim);
exit (1);
}
next += ifm->ifm_msglen;
ifam = NULL;
addrcount = 0;
while (next < lim) {
nextifm = (struct if_msghdr *)next;
if (nextifm->ifm_type != RTM_NEWADDR)
break;
if (ifam == NULL)
ifam = (struct ifa_msghdr *)nextifm;
addrcount++;
next += nextifm->ifm_msglen;
}
memcpy(name, sdl->sdl_data,
sizeof(name) < sdl->sdl_nlen ?
sizeof(name)-1 : sdl->sdl_nlen);
name[sizeof(name) < sdl->sdl_nlen ?
sizeof(name)-1 : sdl->sdl_nlen] = '\0';
if (all || namesonly) {
if (uponly)
if ((flags & IFF_UP) == 0)
continue; /* not up */
if (downonly)
if (flags & IFF_UP)
continue; /* not down */
if (namesonly) {
if (afp == NULL ||
afp->af_status != link_status ||
sdl->sdl_type == IFT_ETHER) {
if (need_nl)
putchar(' ');
fputs(name, stdout);
need_nl++;
}
continue;
}
}
if (argc > 0)
ifconfig(argc, argv, afp);
else
status(afp, addrcount, sdl, ifm, ifam);
}
free(buf);
if (namesonly && need_nl > 0)
putchar('\n');
end:
if (printname)
printf("%s\n", name);
exit (0);
}
int
ifconfig(int argc, char *const *argv, const struct afswtch *afp)
{
int af, s;
if (afp == NULL)
afp = &afs[0];
af = afp->af_af == AF_LINK ? AF_INET : afp->af_af;
ifr.ifr_addr.sa_family = af;
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
if ((s = socket(af, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
while (argc > 0) {
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 || p->c_func2) {
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 if (p->c_parameter == NEXTARG2) {
if (argc < 3)
errx(1, "'%s' requires 2 arguments",
p->c_name);
(*p->c_func2)(argv[1], argv[2], s, afp);
argc -= 2, argv += 2;
} else
(*p->c_func)(*argv, p->c_parameter, s, afp);
}
argc--, argv++;
}
#ifdef INET6
if (af == AF_INET6 && explicit_prefix == 0) {
/* Aggregatable address architecture defines all prefixes
are 64. So, it is convenient to set prefixlen to 64 if
it is not specified. */
setifprefixlen("64", 0, s, afp);
/* in6_getprefix("64", MASK) if MASK is available here... */
}
#endif
#ifndef NO_IPX
if (setipdst && af == 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");
}
#endif
if (af == AF_APPLETALK)
checkatrange((struct sockaddr_at *) &addreq.ifra_addr);
if (clearaddr) {
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
clearaddr = 0;
}
}
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_addreq == NULL || afp->af_aifaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
newaddr = 0;
}
}
if (newaddr && (setaddr || setmask)) {
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(const char *addr, int param, int s, const struct afswtch *afp)
{
if (*afp->af_getaddr == NULL)
return;
/*
* 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 && afp->af_af != AF_LINK)
clearaddr = 1;
(*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
}
void
settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
{
struct addrinfo hints, *srcres, *dstres;
struct ifaliasreq addreq;
int ecode;
#ifdef INET6
struct in6_aliasreq in6_addreq;
#endif
memset(&hints, 0, sizeof(hints));
hints.ai_family = afp->af_af;
if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
errx(1, "error in parsing address string: %s",
gai_strerror(ecode));
if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
errx(1, "error in parsing address string: %s",
gai_strerror(ecode));
if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
errx(1,
"source and destination address families do not match");
switch (srcres->ai_addr->sa_family) {
case AF_INET:
memset(&addreq, 0, sizeof(addreq));
strncpy(addreq.ifra_name, name, IFNAMSIZ);
memcpy(&addreq.ifra_addr, srcres->ai_addr,
srcres->ai_addr->sa_len);
memcpy(&addreq.ifra_dstaddr, dstres->ai_addr,
dstres->ai_addr->sa_len);
if (ioctl(s, SIOCSIFPHYADDR, &addreq) < 0)
warn("SIOCSIFPHYADDR");
break;
#ifdef INET6
case AF_INET6:
memset(&in6_addreq, 0, sizeof(in6_addreq));
strncpy(in6_addreq.ifra_name, name, IFNAMSIZ);
memcpy(&in6_addreq.ifra_addr, srcres->ai_addr,
srcres->ai_addr->sa_len);
memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr,
dstres->ai_addr->sa_len);
if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0)
warn("SIOCSIFPHYADDR_IN6");
break;
#endif /* INET6 */
default:
warn("address family not supported");
}
freeaddrinfo(srcres);
freeaddrinfo(dstres);
}
/* ARGSUSED */
void
deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
{
if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
err(1, "SIOCDIFPHYADDR");
}
void
setifnetmask(const char *addr, int dummy __unused, int s,
const struct afswtch *afp)
{
if (*afp->af_getaddr == NULL)
return;
setmask++;
(*afp->af_getaddr)(addr, MASK);
}
#ifdef INET6
void
setifprefixlen(const char *addr, int dummy __unused, int s,
const struct afswtch *afp)
{
if (*afp->af_getprefix)
(*afp->af_getprefix)(addr, MASK);
explicit_prefix = 1;
}
void
setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused,
const struct afswtch *afp)
{
if (afp->af_af != AF_INET6)
err(1, "address flags can be set only for inet6 addresses");
if (flag < 0)
in6_addreq.ifra_flags &= ~(-flag);
else
in6_addreq.ifra_flags |= flag;
}
void
setip6pltime(const char *seconds, int dummy __unused, int s,
const struct afswtch *afp)
{
setip6lifetime("pltime", seconds, s, afp);
}
void
setip6vltime(const char *seconds, int dummy __unused, int s,
const struct afswtch *afp)
{
setip6lifetime("vltime", seconds, s, afp);
}
void
setip6lifetime(const char *cmd, const char *val, int s,
const struct afswtch *afp)
{
time_t newval, t;
char *ep;
t = time(NULL);
newval = (time_t)strtoul(val, &ep, 0);
if (val == ep)
errx(1, "invalid %s", cmd);
if (afp->af_af != AF_INET6)
errx(1, "%s not allowed for the AF", cmd);
if (strcmp(cmd, "vltime") == 0) {
in6_addreq.ifra_lifetime.ia6t_expire = t + newval;
in6_addreq.ifra_lifetime.ia6t_vltime = newval;
} else if (strcmp(cmd, "pltime") == 0) {
in6_addreq.ifra_lifetime.ia6t_preferred = t + newval;
in6_addreq.ifra_lifetime.ia6t_pltime = newval;
}
}
void
setip6eui64(const char *cmd, int dummy __unused, int s,
const struct afswtch *afp)
{
struct ifaddrs *ifap, *ifa;
const struct sockaddr_in6 *sin6 = NULL;
const struct in6_addr *lladdr = NULL;
struct in6_addr *in6;
if (afp->af_af != AF_INET6)
errx(EXIT_FAILURE, "%s not allowed for the AF", cmd);
in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr;
if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0)
errx(EXIT_FAILURE, "interface index is already filled");
if (getifaddrs(&ifap) != 0)
err(EXIT_FAILURE, "getifaddrs");
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family == AF_INET6 &&
strcmp(ifa->ifa_name, name) == 0) {
sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr;
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
lladdr = &sin6->sin6_addr;
break;
}
}
}
if (!lladdr)
errx(EXIT_FAILURE, "could not determine link local address");
memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8);
freeifaddrs(ifap);
}
#endif
void
setifbroadaddr(const char *addr, int dummy __unused, int s,
const struct afswtch *afp)
{
if (*afp->af_getaddr == NULL)
return;
(*afp->af_getaddr)(addr, DSTADDR);
}
void
setifipdst(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(const char *addr, int param, int s, const struct afswtch *afp)
{
if (setaddr && doalias == 0 && param < 0)
if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
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(const char *addr, int param __unused, int s,
const struct afswtch *afp)
{
if (*afp->af_getaddr == NULL)
return;
(*afp->af_getaddr)(addr, DSTADDR);
}
/*
* Note: doing an SIOCIGIFFLAGS scribbles on the union portion
* of the ifreq structure, which may confuse other parts of ifconfig.
* Make a private copy so we can avoid that.
*/
void
setifflags(const char *vname, int value, int s, const struct afswtch *afp)
{
struct ifreq my_ifr;
bcopy((char *)&ifr, (char *)&my_ifr, sizeof(struct ifreq));
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
Perror("ioctl (SIOCGIFFLAGS)");
exit(1);
}
strncpy(my_ifr.ifr_name, name, sizeof (my_ifr.ifr_name));
flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
if (value < 0) {
value = -value;
flags &= ~value;
} else
flags |= value;
my_ifr.ifr_flags = flags & 0xffff;
my_ifr.ifr_flagshigh = flags >> 16;
if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
Perror(vname);
}
void
setifcap(const char *vname, int value, int s, const struct afswtch *afp)
{
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
Perror("ioctl (SIOCGIFCAP)");
exit(1);
}
flags = ifr.ifr_curcap;
if (value < 0) {
value = -value;
flags &= ~value;
} else
flags |= value;
ifr.ifr_reqcap = flags;
if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
Perror(vname);
}
void
setifmetric(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)
warn("ioctl (set metric)");
}
void
setifmtu(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)
warn("ioctl (set mtu)");
}
void
setifname(const char *val, int dummy __unused, int s,
const struct afswtch *afp)
{
char *newname;
newname = strdup(val);
ifr.ifr_data = newname;
if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
warn("ioctl (set name)");
free(newname);
return;
}
strlcpy(name, newname, sizeof(name));
free(newname);
/*
* Even if we just created the interface, we don't need to print
* its name because we just nailed it down separately.
*/
printname = 0;
}
#define IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
"\20MULTICAST\21POLLING\23MONITOR\24STATICARP"
#define IFCAPBITS \
"\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING"
/*
* Print the status of the interface. If an address family was
* specified, show it and it only; otherwise, show them all.
*/
void
status(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;
struct ifstat ifs;
if (afp == NULL) {
allfamilies = 1;
afp = &afs[0];
} else
allfamilies = 0;
ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af;
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
printf("%s: ", name);
printb("flags", flags, IFFBITS);
if (ifm->ifm_data.ifi_metric)
printf(" metric %ld", ifm->ifm_data.ifi_metric);
if (ifm->ifm_data.ifi_mtu)
printf(" mtu %ld", ifm->ifm_data.ifi_mtu);
putchar('\n');
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
if (ifr.ifr_curcap != 0) {
printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
putchar('\n');
}
if (supmedia && ifr.ifr_reqcap != 0) {
printf("\tcapability list:\n");
printb("\t\t", ifr.ifr_reqcap, IFCAPBITS);
putchar('\n');
}
}
tunnel_status(s);
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) {
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)
(*p->af_status)(s, &info);
}
addrcount--;
ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen);
}
if (allfamilies || afp->af_status == link_status)
link_status(s, (struct rt_addrinfo *)sdl);
#ifdef USE_IF_MEDIA
if (allfamilies || afp->af_status == media_status)
media_status(s, NULL);
#endif
#ifdef USE_VLANS
if (allfamilies || afp->af_status == vlan_status)
vlan_status(s, NULL);
#endif
#ifdef USE_IEEE80211
if (allfamilies || afp->af_status == ieee80211_status)
ieee80211_status(s, NULL);
#endif
#ifdef USE_MAC
if (allfamilies || afp->af_status == maclabel_status)
maclabel_status(s, NULL);
#endif
strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
printf("%s", ifs.ascii);
if (!allfamilies && !p &&
#ifdef USE_IF_MEDIA
afp->af_status != media_status &&
#endif
afp->af_status != link_status
#ifdef USE_VLANS
&& afp->af_status != vlan_status
#endif
)
warnx("%s has no %s interface address!", name, afp->af_name);
close(s);
return;
}
void
tunnel_status(int s)
{
char psrcaddr[NI_MAXHOST];
char pdstaddr[NI_MAXHOST];
u_long srccmd, dstcmd;
struct ifreq *ifrp;
const char *ver = "";
#ifdef NI_WITHSCOPEID
const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
#else
const int niflag = NI_NUMERICHOST;
#endif
#ifdef INET6
struct in6_ifreq in6_ifr;
int s6;
#endif /* INET6 */
psrcaddr[0] = pdstaddr[0] = '\0';
#ifdef INET6
memset(&in6_ifr, 0, sizeof(in6_ifr));
strncpy(in6_ifr.ifr_name, name, IFNAMSIZ);
s6 = socket(AF_INET6, SOCK_DGRAM, 0);
if (s6 < 0) {
srccmd = SIOCGIFPSRCADDR;
dstcmd = SIOCGIFPDSTADDR;
ifrp = 𝔦
} else {
close(s6);
srccmd = SIOCGIFPSRCADDR_IN6;
dstcmd = SIOCGIFPDSTADDR_IN6;
ifrp = (struct ifreq *)&in6_ifr;
}
#else /* INET6 */
srccmd = SIOCGIFPSRCADDR;
dstcmd = SIOCGIFPDSTADDR;
ifrp = 𝔦
#endif /* INET6 */
if (ioctl(s, srccmd, (caddr_t)ifrp) < 0)
return;
#ifdef INET6
if (ifrp->ifr_addr.sa_family == AF_INET6)
in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr);
#endif
getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
psrcaddr, sizeof(psrcaddr), 0, 0, niflag);
#ifdef INET6
if (ifrp->ifr_addr.sa_family == AF_INET6)
ver = "6";
#endif
if (ioctl(s, dstcmd, (caddr_t)ifrp) < 0)
return;
#ifdef INET6
if (ifrp->ifr_addr.sa_family == AF_INET6)
in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr);
#endif
getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
pdstaddr, sizeof(pdstaddr), 0, 0, niflag);
printf("\ttunnel inet%s %s --> %s\n", ver,
psrcaddr, pdstaddr);
}
void
in_status(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');
}
#ifdef INET6
void
in6_fillscopeid(struct sockaddr_in6 *sin6)
{
#if defined(__KAME__) && defined(KAME_SCOPEID)
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
sin6->sin6_scope_id =
ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]);
sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
}
#endif
}
void
in6_status(int s __unused, struct rt_addrinfo * info)
{
struct sockaddr_in6 *sin, null_sin;
struct in6_ifreq ifr6;
int s6;
u_int32_t flags6;
struct in6_addrlifetime lifetime;
time_t t = time(NULL);
int error;
u_int32_t scopeid;
memset(&null_sin, 0, sizeof(null_sin));
sin = (struct sockaddr_in6 *)info->rti_info[RTAX_IFA];
strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name));
if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
perror("ifconfig: socket");
return;
}
ifr6.ifr_addr = *sin;
if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
perror("ifconfig: ioctl(SIOCGIFAFLAG_IN6)");
close(s6);
return;
}
flags6 = ifr6.ifr_ifru.ifru_flags6;
memset(&lifetime, 0, sizeof(lifetime));
ifr6.ifr_addr = *sin;
if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
perror("ifconfig: ioctl(SIOCGIFALIFETIME_IN6)");
close(s6);
return;
}
lifetime = ifr6.ifr_ifru.ifru_lifetime;
close(s6);
/* XXX: embedded link local addr check */
if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
*(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
u_short index;
index = *(u_short *)&sin->sin6_addr.s6_addr[2];
*(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
if (sin->sin6_scope_id == 0)
sin->sin6_scope_id = ntohs(index);
}
scopeid = sin->sin6_scope_id;
error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf,
sizeof(addr_buf), NULL, 0,
NI_NUMERICHOST|NI_WITHSCOPEID);
if (error != 0)
inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
sizeof(addr_buf));
printf("\tinet6 %s ", addr_buf);
if (flags & IFF_POINTOPOINT) {
/* note RTAX_BRD overlap with IFF_BROADCAST */
sin = (struct sockaddr_in6 *)info->rti_info[RTAX_BRD];
/*
* some of the interfaces do not have valid destination
* address.
*/
if (sin && sin->sin6_family == AF_INET6) {
int error;
/* XXX: embedded link local addr check */
if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
*(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
u_short index;
index = *(u_short *)&sin->sin6_addr.s6_addr[2];
*(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
if (sin->sin6_scope_id == 0)
sin->sin6_scope_id = ntohs(index);
}
error = getnameinfo((struct sockaddr *)sin,
sin->sin6_len, addr_buf,
sizeof(addr_buf), NULL, 0,
NI_NUMERICHOST|NI_WITHSCOPEID);
if (error != 0)
inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
sizeof(addr_buf));
printf("--> %s ", addr_buf);
}
}
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)));
if ((flags6 & IN6_IFF_ANYCAST) != 0)
printf("anycast ");
if ((flags6 & IN6_IFF_TENTATIVE) != 0)
printf("tentative ");
if ((flags6 & IN6_IFF_DUPLICATED) != 0)
printf("duplicated ");
if ((flags6 & IN6_IFF_DETACHED) != 0)
printf("detached ");
if ((flags6 & IN6_IFF_DEPRECATED) != 0)
printf("deprecated ");
if ((flags6 & IN6_IFF_AUTOCONF) != 0)
printf("autoconf ");
if ((flags6 & IN6_IFF_TEMPORARY) != 0)
printf("temporary ");
if (scopeid)
printf("scopeid 0x%x ", scopeid);
if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) {
printf("pltime ");
if (lifetime.ia6t_preferred) {
printf("%s ", lifetime.ia6t_preferred < t
? "0" : sec2str(lifetime.ia6t_preferred - t));
} else
printf("infty ");
printf("vltime ");
if (lifetime.ia6t_expire) {
printf("%s ", lifetime.ia6t_expire < t
? "0" : sec2str(lifetime.ia6t_expire - t));
} else
printf("infty ");
}
putchar('\n');
}
#endif /*INET6*/
#ifndef NO_IPX
void
ipx_status(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');
}
#endif
void
at_status(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');
}
void
link_status(int s __unused, struct rt_addrinfo *info)
{
struct sockaddr_dl *sdl = (struct sockaddr_dl *)info;
if (sdl->sdl_alen > 0) {
if (sdl->sdl_type == IFT_ETHER &&
sdl->sdl_alen == ETHER_ADDR_LEN)
printf("\tether %s\n",
ether_ntoa((struct ether_addr *)LLADDR(sdl)));
else {
int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
printf("\tlladdr %s\n", link_ntoa(sdl) + n);
}
}
}
void
Perror(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(const char *s, int which)
{
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 (which == ADDR) {
char *p = NULL;
if((p = strrchr(s, '/')) != NULL) {
/* address is `name/masklen' */
int masklen;
int ret;
struct sockaddr_in *min = sintab[MASK];
*p = '\0';
ret = sscanf(p+1, "%u", &masklen);
if(ret != 1 || (masklen < 0 || masklen > 32)) {
*p = '/';
errx(1, "%s: bad value", s);
}
min->sin_len = sizeof(*min);
min->sin_addr.s_addr = htonl(~((1LL << (32 - masklen)) - 1) &
0xffffffff);
}
}
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);
}
#ifdef INET6
#define SIN6(x) ((struct sockaddr_in6 *) &(x))
struct sockaddr_in6 *sin6tab[] = {
SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr),
SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)};
void
in6_getaddr(const char *s, int which)
{
struct sockaddr_in6 *sin = sin6tab[which];
struct addrinfo hints, *res;
int error = -1;
newaddr &= 1;
sin->sin6_len = sizeof(*sin);
if (which != MASK)
sin->sin6_family = AF_INET6;
if (which == ADDR) {
char *p = NULL;
if((p = strrchr(s, '/')) != NULL) {
*p = '\0';
in6_getprefix(p + 1, MASK);
explicit_prefix = 1;
}
}
if (sin->sin6_family == AF_INET6) {
bzero(&hints, sizeof(struct addrinfo));
hints.ai_family = AF_INET6;
error = getaddrinfo(s, NULL, &hints, &res);
}
if (error != 0) {
if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
errx(1, "%s: bad value", s);
} else
bcopy(res->ai_addr, sin, res->ai_addrlen);
}
void
in6_getprefix(const char *plen, int which)
{
struct sockaddr_in6 *sin = sin6tab[which];
u_char *cp;
int len = atoi(plen);
if ((len < 0) || (len > 128))
errx(1, "%s: bad value", plen);
sin->sin6_len = sizeof(*sin);
if (which != MASK)
sin->sin6_family = AF_INET6;
if ((len == 0) || (len == 128)) {
memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr));
return;
}
memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr));
for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
*cp++ = 0xff;
*cp = 0xff << (8 - len);
}
#endif
/*
* Print a value a la the %b format of the kernel's printf
*/
void
printb(const char *s, unsigned v, const char *bits)
{
int i, any = 0;
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('>');
}
}
#ifndef NO_IPX
#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(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");
}
#endif
void
at_getaddr(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");
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;
}
void
link_getaddr(const char *addr, int which)
{
char *temp;
struct sockaddr_dl sdl;
struct sockaddr *sa = &ridreq.ifr_addr;
if (which != ADDR)
errx(1, "can't set link-level netmask or broadcast");
if ((temp = malloc(strlen(addr) + 1)) == NULL)
errx(1, "malloc failed");
temp[0] = ':';
strcpy(temp + 1, addr);
sdl.sdl_len = sizeof(sdl);
link_addr(temp, &sdl);
free(temp);
if (sdl.sdl_alen > sizeof(sa->sa_data))
errx(1, "malformed link-level address");
sa->sa_family = AF_LINK;
sa->sa_len = sdl.sdl_alen;
bcopy(LLADDR(&sdl), sa->sa_data, sdl.sdl_alen);
}
/* XXX FIXME -- should use strtoul for better parsing. */
void
setatrange(const char *range, int dummy __unused, int s,
const struct afswtch *afp)
{
u_int first = 123, last = 123;
if (sscanf(range, "%u-%u", &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(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 INET6
int
prefix(void *val, int size)
{
u_char *name = (u_char *)val;
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);
}
static char *
sec2str(time_t total)
{
static char result[256];
int days, hours, mins, secs;
int first = 1;
char *p = result;
if (0) {
days = total / 3600 / 24;
hours = (total / 3600) % 24;
mins = (total / 60) % 60;
secs = total % 60;
if (days) {
first = 0;
p += sprintf(p, "%dd", days);
}
if (!first || hours) {
first = 0;
p += sprintf(p, "%dh", hours);
}
if (!first || mins) {
first = 0;
p += sprintf(p, "%dm", mins);
}
sprintf(p, "%ds", secs);
} else
sprintf(result, "%lu", (unsigned long)total);
return(result);
}
#endif /*INET6*/
void
ifmaybeload(char *name)
{
struct module_stat mstat;
int fileid, modid;
char ifkind[35], *cp, *dp;
/* turn interface and unit into module name */
strcpy(ifkind, "if_");
for (cp = name, dp = ifkind + 3;
(*cp != 0) && !isdigit(*cp); cp++, dp++)
*dp = *cp;
*dp = 0;
/* scan files in kernel */
mstat.version = sizeof(struct module_stat);
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
/* scan modules in file */
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid)) {
if (modstat(modid, &mstat) < 0)
continue;
/* strip bus name if present */
if ((cp = strchr(mstat.name, '/')) != NULL) {
cp++;
} else {
cp = mstat.name;
}
/* already loaded? */
if (strncmp(name, cp, strlen(cp)) == 0 ||
strncmp(ifkind, cp, strlen(cp)) == 0)
return;
}
}
/* not present, we should try to load it */
kldload(ifkind);
}
void
list_cloners(void)
{
struct if_clonereq ifcr;
char *cp, *buf;
int idx;
int s;
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s == -1)
err(1, "socket");
memset(&ifcr, 0, sizeof(ifcr));
if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
err(1, "SIOCIFGCLONERS for count");
buf = malloc(ifcr.ifcr_total * IFNAMSIZ);
if (buf == NULL)
err(1, "unable to allocate cloner name buffer");
ifcr.ifcr_count = ifcr.ifcr_total;
ifcr.ifcr_buffer = buf;
if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
err(1, "SIOCIFGCLONERS for names");
/*
* In case some disappeared in the mean time, clamp it down.
*/
if (ifcr.ifcr_count > ifcr.ifcr_total)
ifcr.ifcr_count = ifcr.ifcr_total;
for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) {
if (idx > 0)
putchar(' ');
printf("%s", cp);
}
putchar('\n');
free(buf);
}
void
clone_create(void)
{
int s;
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s == -1)
err(1, "socket");
memset(&ifr, 0, sizeof(ifr));
(void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCIFCREATE, &ifr) < 0)
err(1, "SIOCIFCREATE");
/*
* If we get a different name back then we put in, we probably
* want to print it out, but we might change our mind later so
* we just signal our intrest and leave the printout for later.
*/
if (strcmp(name, ifr.ifr_name) != 0) {
printname = 1;
strlcpy(name, ifr.ifr_name, sizeof(name));
}
close(s);
}
void
clone_destroy(const char *val, int d, int s, const struct afswtch *rafp)
{
(void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCIFDESTROY, &ifr) < 0)
err(1, "SIOCIFDESTROY");
/*
* If we create and destroy an interface in the same command,
* there isn't any reason to print it's name.
*/
printname = 0;
}