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freebsd-dev/sbin/ifconfig/ifconfig.c
Poul-Henning Kamp afbe3a0f81 Add the "Monitor" interface flag. 
Setting this flag on an ethernet interface blocks transmission of packets
and discards incoming packets after BPF processing.

This is useful if you want to monitor network trafic but not interact
with the network in question.

Sponsored by:	http://www.babeltech.dk
2002-09-27 18:57:47 +00:00

1954 lines
48 KiB
C
Raw Blame History

/*
* 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 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[] =
"$FreeBSD$";
#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>
/* XNS */
#ifdef NS
#define NSIP
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
/* OSI */
#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
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[32];
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;
#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;
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 },
#ifdef USE_IF_MEDIA
{ "media", NEXTARG, setmedia },
{ "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 */
#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 },
{ "normal", -IFF_LINK0, setifflags },
{ "compress", IFF_LINK0, setifflags },
{ "noicmp", IFF_LINK1, setifflags },
{ "mtu", NEXTARG, setifmtu },
{ 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*/
#ifdef NS
af_status xns_status;
af_getaddr xns_getaddr;
#endif
/* 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) },
#ifdef NS
{ "ns", AF_NS, xns_status, xns_getaddr, NULL,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
#endif
{ "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
#endif
{ 0, 0, 0, 0 }
};
/*
* Expand the compacted form of addresses as returned via the
* configuration read via sysctl().
*/
#define ROUNDUP(a) \
((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
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;
ADVANCE(cp, 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;
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)
exit(0);
}
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 */
}
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)
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) {
sdl = (struct sockaddr_dl *)(ifm + 1);
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;
}
strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
name[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');
exit (0);
}
int
ifconfig(int argc, char *const *argv, const struct afswtch *afp)
{
int s;
if (afp == NULL)
afp = &afs[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");
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 (ifr.ifr_addr.sa_family == 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 && 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");
}
#endif
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_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)
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)");
}
#define IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
"\20MULTICAST"
#define IFCAPBITS \
"\003\1rxcsum\2txcsum\3netcons"
/*
* 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
strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
printf("%s", ifs.ascii);
if (!allfamilies && !p && afp->af_status != media_status &&
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 = &ifr;
} else {
close(s6);
srccmd = SIOCGIFPSRCADDR_IN6;
dstcmd = SIOCGIFPDSTADDR_IN6;
ifrp = (struct ifreq *)&in6_ifr;
}
#else /* INET6 */
srccmd = SIOCGIFPSRCADDR;
dstcmd = SIOCGIFPDSTADDR;
ifrp = &ifr;
#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');
}
#ifdef NS
void
xns_status(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
void
link_status(int s __unused, struct rt_addrinfo *info)
{
int n;
struct sockaddr_dl *sdl = (struct sockaddr_dl *)info;
if ((n = 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
printf("\tlladdr %s\n", link_ntoa(sdl) + n + 1);
}
}
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_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(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(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 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 (!strcmp(ifkind, cp))
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 (strcmp(name, ifr.ifr_name) != 0) {
printf("%s\n", ifr.ifr_name);
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");
}
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