511 lines
13 KiB
C
511 lines
13 KiB
C
/* $NetBSD: if.c,v 1.32 1999/07/01 18:40:35 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1988, 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94";
|
|
#else
|
|
__RCSID("$NetBSD: if.c,v 1.32 1999/07/01 18:40:35 itojun Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_types.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_var.h>
|
|
#include <netns/ns.h>
|
|
#include <netns/ns_if.h>
|
|
#include <netiso/iso.h>
|
|
#include <netiso/iso_var.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "netstat.h"
|
|
|
|
#define YES 1
|
|
#define NO 0
|
|
|
|
static void sidewaysintpr __P((u_int, u_long));
|
|
static void catchalarm __P((int));
|
|
|
|
#ifdef INET6
|
|
char *netname6 __P((struct in6_addr *, struct in6_addr *));
|
|
static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
|
|
#endif
|
|
|
|
/*
|
|
* Print a description of the network interfaces.
|
|
* NOTE: ifnetaddr is the location of the kernel global "ifnet",
|
|
* which is a TAILQ_HEAD.
|
|
*/
|
|
void
|
|
intpr(interval, ifnetaddr)
|
|
int interval;
|
|
u_long ifnetaddr;
|
|
{
|
|
struct ifnet ifnet;
|
|
union {
|
|
struct ifaddr ifa;
|
|
struct in_ifaddr in;
|
|
#ifdef INET6
|
|
struct in6_ifaddr in6;
|
|
#endif /* INET6 */
|
|
struct ns_ifaddr ns;
|
|
struct iso_ifaddr iso;
|
|
} ifaddr;
|
|
u_long ifaddraddr;
|
|
struct sockaddr *sa;
|
|
struct ifnet_head ifhead; /* TAILQ_HEAD */
|
|
char name[IFNAMSIZ];
|
|
|
|
if (ifnetaddr == 0) {
|
|
printf("ifnet: symbol not defined\n");
|
|
return;
|
|
}
|
|
if (interval) {
|
|
sidewaysintpr((unsigned)interval, ifnetaddr);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Find the pointer to the first ifnet structure. Replace
|
|
* the pointer to the TAILQ_HEAD with the actual pointer
|
|
* to the first list element.
|
|
*/
|
|
if (kread(ifnetaddr, (char *)&ifhead, sizeof ifhead))
|
|
return;
|
|
ifnetaddr = (u_long)ifhead.tqh_first;
|
|
|
|
if (bflag) {
|
|
printf("%-5.5s %-5.5s %-13.13s %-17.17s "
|
|
"%10.10s %10.10s",
|
|
"Name", "Mtu", "Network", "Address",
|
|
"Ibytes", "Obytes");
|
|
} else {
|
|
printf("%-5.5s %-5.5s %-13.13s %-17.17s "
|
|
"%8.8s %5.5s %8.8s %5.5s %5.5s",
|
|
"Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs",
|
|
"Opkts", "Oerrs", "Colls");
|
|
}
|
|
if (tflag)
|
|
printf(" %4.4s", "Time");
|
|
if (dflag)
|
|
printf(" %5.5s", "Drops");
|
|
putchar('\n');
|
|
ifaddraddr = 0;
|
|
while (ifnetaddr || ifaddraddr) {
|
|
struct sockaddr_in *sin;
|
|
#ifdef INET6
|
|
struct sockaddr_in6 *sin6;
|
|
#endif /* INET6 */
|
|
char *cp;
|
|
int n, m;
|
|
|
|
if (ifaddraddr == 0) {
|
|
if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
|
|
return;
|
|
memmove(name, ifnet.if_xname, IFNAMSIZ);
|
|
name[IFNAMSIZ - 1] = '\0'; /* sanity */
|
|
ifnetaddr = (u_long)ifnet.if_list.tqe_next;
|
|
if (interface != 0 && strcmp(name, interface) != 0)
|
|
continue;
|
|
cp = strchr(name, '\0');
|
|
if ((ifnet.if_flags & IFF_UP) == 0)
|
|
*cp++ = '*';
|
|
*cp = '\0';
|
|
ifaddraddr = (u_long)ifnet.if_addrlist.tqh_first;
|
|
}
|
|
printf("%-5.5s %-5lu ", name, ifnet.if_mtu);
|
|
if (ifaddraddr == 0) {
|
|
printf("%-13.13s ", "none");
|
|
printf("%-17.17s ", "none");
|
|
} else {
|
|
char hexsep = '.'; /* for hexprint */
|
|
const char *hexfmt = "%x%c"; /* for hexprint */
|
|
if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
|
|
ifaddraddr = 0;
|
|
continue;
|
|
}
|
|
#define CP(x) ((char *)(x))
|
|
cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
|
|
CP(&ifaddr); sa = (struct sockaddr *)cp;
|
|
switch (sa->sa_family) {
|
|
case AF_UNSPEC:
|
|
printf("%-13.13s ", "none");
|
|
printf("%-17.17s ", "none");
|
|
break;
|
|
case AF_INET:
|
|
sin = (struct sockaddr_in *)sa;
|
|
#ifdef notdef
|
|
/*
|
|
* can't use inet_makeaddr because kernel
|
|
* keeps nets unshifted.
|
|
*/
|
|
in = inet_makeaddr(ifaddr.in.ia_subnet,
|
|
INADDR_ANY);
|
|
printf("%-13.13s ", netname(in.s_addr,
|
|
ifaddr.in.ia_subnetmask));
|
|
#else
|
|
printf("%-13.13s ",
|
|
netname(ifaddr.in.ia_subnet,
|
|
ifaddr.in.ia_subnetmask));
|
|
#endif
|
|
printf("%-17.17s ",
|
|
routename(sin->sin_addr.s_addr));
|
|
|
|
if (aflag) {
|
|
u_long multiaddr;
|
|
struct in_multi inm;
|
|
|
|
multiaddr = (u_long)
|
|
ifaddr.in.ia_multiaddrs.lh_first;
|
|
while (multiaddr != 0) {
|
|
kread(multiaddr, (char *)&inm,
|
|
sizeof inm);
|
|
printf("\n%25s %-17.17s ", "",
|
|
routename(
|
|
inm.inm_addr.s_addr));
|
|
multiaddr =
|
|
(u_long)inm.inm_list.le_next;
|
|
}
|
|
}
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
sin6 = (struct sockaddr_in6 *)sa;
|
|
printf("%-13.13s ",
|
|
netname6(&ifaddr.in6.ia_addr.sin6_addr,
|
|
&ifaddr.in6.ia_prefixmask.sin6_addr));
|
|
printf("%-17.17s ",
|
|
(char *)inet_ntop(AF_INET6,
|
|
&sin6->sin6_addr,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
break;
|
|
#endif /*INET6*/
|
|
#ifndef SMALL
|
|
case AF_APPLETALK:
|
|
printf("atalk:%-7.7s ",
|
|
atalk_print(sa,0x10));
|
|
printf("%-17.17s ", atalk_print(sa,0x0b));
|
|
break;
|
|
case AF_NS:
|
|
{
|
|
struct sockaddr_ns *sns =
|
|
(struct sockaddr_ns *)sa;
|
|
u_long net;
|
|
char netnum[8];
|
|
|
|
*(union ns_net *)&net = sns->sns_addr.x_net;
|
|
(void)sprintf(netnum, "%xH",
|
|
(u_int32_t)ntohl(net));
|
|
upHex(netnum);
|
|
printf("ns:%-10s ", netnum);
|
|
printf("%-17.17s ",
|
|
ns_phost((struct sockaddr *)sns));
|
|
}
|
|
break;
|
|
#endif
|
|
case AF_LINK:
|
|
{
|
|
struct sockaddr_dl *sdl =
|
|
(struct sockaddr_dl *)sa;
|
|
cp = (char *)LLADDR(sdl);
|
|
if (sdl->sdl_type == IFT_FDDI
|
|
|| sdl->sdl_type == IFT_ETHER)
|
|
hexsep = ':', hexfmt = "%02x%c";
|
|
n = sdl->sdl_alen;
|
|
}
|
|
m = printf("%-13.13s ", "<Link>");
|
|
goto hexprint;
|
|
default:
|
|
m = printf("(%d)", sa->sa_family);
|
|
for (cp = sa->sa_len + (char *)sa;
|
|
--cp > sa->sa_data && (*cp == 0);) {}
|
|
n = cp - sa->sa_data + 1;
|
|
cp = sa->sa_data;
|
|
hexprint:
|
|
while (--n >= 0)
|
|
m += printf(hexfmt, *cp++ & 0xff,
|
|
n > 0 ? hexsep : ' ');
|
|
m = 32 - m;
|
|
while (m-- > 0)
|
|
putchar(' ');
|
|
break;
|
|
}
|
|
ifaddraddr = (u_long)ifaddr.ifa.ifa_list.tqe_next;
|
|
}
|
|
if (bflag) {
|
|
printf("%10lu %10lu",
|
|
ifnet.if_ibytes, ifnet.if_obytes);
|
|
} else {
|
|
printf("%8lu %5lu %8lu %5lu %5lu",
|
|
ifnet.if_ipackets, ifnet.if_ierrors,
|
|
ifnet.if_opackets, ifnet.if_oerrors,
|
|
ifnet.if_collisions);
|
|
}
|
|
if (tflag)
|
|
printf(" %4d", ifnet.if_timer);
|
|
if (dflag)
|
|
printf(" %5d", ifnet.if_snd.ifq_drops);
|
|
putchar('\n');
|
|
}
|
|
}
|
|
|
|
#define MAXIF 100
|
|
struct iftot {
|
|
char ift_name[IFNAMSIZ]; /* interface name */
|
|
u_long ift_ip; /* input packets */
|
|
u_long ift_ib; /* input bytes */
|
|
u_long ift_ie; /* input errors */
|
|
u_long ift_op; /* output packets */
|
|
u_long ift_ob; /* output bytes */
|
|
u_long ift_oe; /* output errors */
|
|
u_long ift_co; /* collisions */
|
|
int ift_dr; /* drops */
|
|
} iftot[MAXIF];
|
|
|
|
u_char signalled; /* set if alarm goes off "early" */
|
|
|
|
/*
|
|
* Print a running summary of interface statistics.
|
|
* Repeat display every interval seconds, showing statistics
|
|
* collected over that interval. Assumes that interval is non-zero.
|
|
* First line printed at top of screen is always cumulative.
|
|
*/
|
|
static void
|
|
sidewaysintpr(interval, off)
|
|
unsigned interval;
|
|
u_long off;
|
|
{
|
|
struct ifnet ifnet;
|
|
u_long firstifnet;
|
|
struct iftot *ip, *total;
|
|
int line;
|
|
struct iftot *lastif, *sum, *interesting;
|
|
struct ifnet_head ifhead; /* TAILQ_HEAD */
|
|
int oldmask;
|
|
|
|
/*
|
|
* Find the pointer to the first ifnet structure. Replace
|
|
* the pointer to the TAILQ_HEAD with the actual pointer
|
|
* to the first list element.
|
|
*/
|
|
if (kread(off, (char *)&ifhead, sizeof ifhead))
|
|
return;
|
|
firstifnet = (u_long)ifhead.tqh_first;
|
|
|
|
lastif = iftot;
|
|
sum = iftot + MAXIF - 1;
|
|
total = sum - 1;
|
|
interesting = (interface == NULL) ? iftot : NULL;
|
|
for (off = firstifnet, ip = iftot; off;) {
|
|
if (kread(off, (char *)&ifnet, sizeof ifnet))
|
|
break;
|
|
memset(ip->ift_name, 0, sizeof(ip->ift_name));
|
|
snprintf(ip->ift_name, IFNAMSIZ, "%s", ifnet.if_xname);
|
|
if (interface && strcmp(ifnet.if_xname, interface) == 0)
|
|
interesting = ip;
|
|
ip++;
|
|
if (ip >= iftot + MAXIF - 2)
|
|
break;
|
|
off = (u_long)ifnet.if_list.tqe_next;
|
|
}
|
|
if (interesting == NULL) {
|
|
fprintf(stderr, "%s: %s: unknown interface\n",
|
|
__progname, interface);
|
|
exit(1);
|
|
}
|
|
lastif = ip;
|
|
|
|
(void)signal(SIGALRM, catchalarm);
|
|
signalled = NO;
|
|
(void)alarm(interval);
|
|
banner:
|
|
if (bflag)
|
|
printf("%7.7s in %8.8s %6.6s out %5.5s",
|
|
interesting->ift_name, " ",
|
|
interesting->ift_name, " ");
|
|
else
|
|
printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s",
|
|
interesting->ift_name, " ",
|
|
interesting->ift_name, " ", " ");
|
|
if (dflag)
|
|
printf(" %5.5s", " ");
|
|
if (lastif - iftot > 0) {
|
|
if (bflag)
|
|
printf(" %7.7s in %8.8s %6.6s out %5.5s",
|
|
"total", " ", "total", " ");
|
|
else
|
|
printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s",
|
|
"total", " ", "total", " ", " ");
|
|
if (dflag)
|
|
printf(" %5.5s", " ");
|
|
}
|
|
for (ip = iftot; ip < iftot + MAXIF; ip++) {
|
|
ip->ift_ip = 0;
|
|
ip->ift_ib = 0;
|
|
ip->ift_ie = 0;
|
|
ip->ift_op = 0;
|
|
ip->ift_ob = 0;
|
|
ip->ift_oe = 0;
|
|
ip->ift_co = 0;
|
|
ip->ift_dr = 0;
|
|
}
|
|
putchar('\n');
|
|
if (bflag)
|
|
printf("%10.10s %8.8s %10.10s %5.5s",
|
|
"bytes", " ", "bytes", " ");
|
|
else
|
|
printf("%8.8s %5.5s %8.8s %5.5s %5.5s",
|
|
"packets", "errs", "packets", "errs", "colls");
|
|
if (dflag)
|
|
printf(" %5.5s", "drops");
|
|
if (lastif - iftot > 0) {
|
|
if (bflag)
|
|
printf(" %10.10s %8.8s %10.10s %5.5s",
|
|
"bytes", " ", "bytes", " ");
|
|
else
|
|
printf(" %8.8s %5.5s %8.8s %5.5s %5.5s",
|
|
"packets", "errs", "packets", "errs", "colls");
|
|
if (dflag)
|
|
printf(" %5.5s", "drops");
|
|
}
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
line = 0;
|
|
loop:
|
|
sum->ift_ip = 0;
|
|
sum->ift_ib = 0;
|
|
sum->ift_ie = 0;
|
|
sum->ift_op = 0;
|
|
sum->ift_ob = 0;
|
|
sum->ift_oe = 0;
|
|
sum->ift_co = 0;
|
|
sum->ift_dr = 0;
|
|
for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
|
|
if (kread(off, (char *)&ifnet, sizeof ifnet)) {
|
|
off = 0;
|
|
continue;
|
|
}
|
|
if (ip == interesting) {
|
|
if (bflag) {
|
|
printf("%10lu %8.8s %10lu %5.5s",
|
|
ifnet.if_ibytes - ip->ift_ib, " ",
|
|
ifnet.if_obytes - ip->ift_ob, " ");
|
|
} else {
|
|
printf("%8lu %5lu %8lu %5lu %5lu",
|
|
ifnet.if_ipackets - ip->ift_ip,
|
|
ifnet.if_ierrors - ip->ift_ie,
|
|
ifnet.if_opackets - ip->ift_op,
|
|
ifnet.if_oerrors - ip->ift_oe,
|
|
ifnet.if_collisions - ip->ift_co);
|
|
}
|
|
if (dflag)
|
|
printf(" %5d",
|
|
ifnet.if_snd.ifq_drops - ip->ift_dr);
|
|
}
|
|
ip->ift_ip = ifnet.if_ipackets;
|
|
ip->ift_ib = ifnet.if_ibytes;
|
|
ip->ift_ie = ifnet.if_ierrors;
|
|
ip->ift_op = ifnet.if_opackets;
|
|
ip->ift_ob = ifnet.if_obytes;
|
|
ip->ift_oe = ifnet.if_oerrors;
|
|
ip->ift_co = ifnet.if_collisions;
|
|
ip->ift_dr = ifnet.if_snd.ifq_drops;
|
|
sum->ift_ip += ip->ift_ip;
|
|
sum->ift_ib += ip->ift_ib;
|
|
sum->ift_ie += ip->ift_ie;
|
|
sum->ift_op += ip->ift_op;
|
|
sum->ift_ob += ip->ift_ob;
|
|
sum->ift_oe += ip->ift_oe;
|
|
sum->ift_co += ip->ift_co;
|
|
sum->ift_dr += ip->ift_dr;
|
|
off = (u_long)ifnet.if_list.tqe_next;
|
|
}
|
|
if (lastif - iftot > 0) {
|
|
if (bflag) {
|
|
printf(" %10lu %8.8s %10lu %5.5s",
|
|
sum->ift_ib - total->ift_ib, " ",
|
|
sum->ift_ob - total->ift_ob, " ");
|
|
} else {
|
|
printf(" %8lu %5lu %8lu %5lu %5lu",
|
|
sum->ift_ip - total->ift_ip,
|
|
sum->ift_ie - total->ift_ie,
|
|
sum->ift_op - total->ift_op,
|
|
sum->ift_oe - total->ift_oe,
|
|
sum->ift_co - total->ift_co);
|
|
}
|
|
if (dflag)
|
|
printf(" %5d", sum->ift_dr - total->ift_dr);
|
|
}
|
|
*total = *sum;
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
line++;
|
|
oldmask = sigblock(sigmask(SIGALRM));
|
|
if (! signalled) {
|
|
sigpause(0);
|
|
}
|
|
sigsetmask(oldmask);
|
|
signalled = NO;
|
|
(void)alarm(interval);
|
|
if (line == 21)
|
|
goto banner;
|
|
goto loop;
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/*
|
|
* Called if an interval expires before sidewaysintpr has completed a loop.
|
|
* Sets a flag to not wait for the alarm.
|
|
*/
|
|
static void
|
|
catchalarm(signo)
|
|
int signo;
|
|
{
|
|
|
|
signalled = YES;
|
|
}
|