418 lines
11 KiB
C
418 lines
11 KiB
C
/*
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)if.c 8.2 (Berkeley) 2/21/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#include <netiso/iso.h>
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#include <netiso/iso_var.h>
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#include <arpa/inet.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "netstat.h"
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#define YES 1
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#define NO 0
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static void sidewaysintpr __P((u_int, u_long));
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static void catchalarm __P((int));
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/*
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* Print a description of the network interfaces.
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*/
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void
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intpr(interval, ifnetaddr)
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int interval;
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u_long ifnetaddr;
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{
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struct ifnet ifnet;
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union {
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struct ifaddr ifa;
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struct in_ifaddr in;
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struct ns_ifaddr ns;
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struct iso_ifaddr iso;
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} ifaddr;
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u_long ifaddraddr;
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struct sockaddr *sa;
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char name[16];
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if (ifnetaddr == 0) {
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printf("ifnet: symbol not defined\n");
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return;
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}
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if (interval) {
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sidewaysintpr((unsigned)interval, ifnetaddr);
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return;
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}
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if (kread(ifnetaddr, (char *)&ifnetaddr, sizeof ifnetaddr))
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return;
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printf("%-5.5s %-5.5s %-11.11s %-15.15s %8.8s %5.5s",
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"Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
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if (bflag)
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printf(" %10.10s","Ibytes");
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printf(" %8.8s %5.5s", "Opkts", "Oerrs");
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if (bflag)
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printf(" %10.10s","Obytes");
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printf(" %5s", "Coll");
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if (tflag)
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printf(" %s", "Time");
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if (dflag)
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printf(" %s", "Drop");
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putchar('\n');
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ifaddraddr = 0;
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while (ifnetaddr || ifaddraddr) {
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struct sockaddr_in *sin;
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register char *cp;
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int n, m;
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if (ifaddraddr == 0) {
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if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet) ||
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kread((u_long)ifnet.if_name, name, 16))
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return;
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name[15] = '\0';
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ifnetaddr = (u_long)ifnet.if_next;
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if (interface != 0 && (strcmp(name, interface) != 0 ||
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unit != ifnet.if_unit))
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continue;
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cp = index(name, '\0');
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cp += sprintf(cp, "%d", ifnet.if_unit);
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if ((ifnet.if_flags&IFF_UP) == 0)
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*cp++ = '*';
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*cp = '\0';
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ifaddraddr = (u_long)ifnet.if_addrlist;
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}
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printf("%-5.5s %-5d ", name, ifnet.if_mtu);
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if (ifaddraddr == 0) {
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printf("%-11.11s ", "none");
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printf("%-15.15s ", "none");
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} else {
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if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
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ifaddraddr = 0;
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continue;
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}
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#define CP(x) ((char *)(x))
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cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
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CP(&ifaddr); sa = (struct sockaddr *)cp;
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switch (sa->sa_family) {
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case AF_UNSPEC:
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printf("%-11.11s ", "none");
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printf("%-15.15s ", "none");
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break;
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case AF_INET:
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sin = (struct sockaddr_in *)sa;
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#ifdef notdef
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/* can't use inet_makeaddr because kernel
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* keeps nets unshifted.
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*/
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in = inet_makeaddr(ifaddr.in.ia_subnet,
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INADDR_ANY);
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printf("%-11.11s ", netname(in.s_addr,
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ifaddr.in.ia_subnetmask));
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#else
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printf("%-11.11s ",
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netname(htonl(ifaddr.in.ia_subnet),
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ifaddr.in.ia_subnetmask));
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#endif
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printf("%-15.15s ",
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routename(sin->sin_addr.s_addr));
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break;
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case AF_NS:
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{
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struct sockaddr_ns *sns =
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(struct sockaddr_ns *)sa;
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u_long net;
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char netnum[8];
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*(union ns_net *) &net = sns->sns_addr.x_net;
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sprintf(netnum, "%lxH", ntohl(net));
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upHex(netnum);
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printf("ns:%-8s ", netnum);
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printf("%-15s ",
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ns_phost((struct sockaddr *)sns));
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}
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break;
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case AF_LINK:
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{
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struct sockaddr_dl *sdl =
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(struct sockaddr_dl *)sa;
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cp = (char *)LLADDR(sdl);
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n = sdl->sdl_alen;
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}
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m = printf("<Link>");
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goto hexprint;
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default:
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m = printf("(%d)", sa->sa_family);
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for (cp = sa->sa_len + (char *)sa;
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--cp > sa->sa_data && (*cp == 0);) {}
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n = cp - sa->sa_data + 1;
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cp = sa->sa_data;
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hexprint:
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while (--n >= 0)
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m += printf("%02x%c", *cp++ & 0xff,
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n > 0 ? '.' : ' ');
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m = 28 - m;
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while (m-- > 0)
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putchar(' ');
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break;
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}
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ifaddraddr = (u_long)ifaddr.ifa.ifa_next;
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}
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printf("%8d %5d ",
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ifnet.if_ipackets, ifnet.if_ierrors);
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if (bflag)
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printf("%10d ", ifnet.if_ibytes);
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printf("%8d %5d ",
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ifnet.if_opackets, ifnet.if_oerrors);
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if (bflag)
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printf("%10d ", ifnet.if_obytes);
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printf("%5d", ifnet.if_collisions);
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if (tflag)
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printf(" %3d", ifnet.if_timer);
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if (dflag)
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printf(" %3d", ifnet.if_snd.ifq_drops);
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putchar('\n');
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}
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}
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#define MAXIF 10
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struct iftot {
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char ift_name[16]; /* interface name */
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u_int ift_ip; /* input packets */
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u_int ift_ie; /* input errors */
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u_int ift_op; /* output packets */
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u_int ift_oe; /* output errors */
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u_int ift_co; /* collisions */
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u_int ift_dr; /* drops */
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u_int ift_ib; /* input bytes */
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u_int ift_ob; /* output bytes */
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} iftot[MAXIF];
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u_char signalled; /* set if alarm goes off "early" */
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/*
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* Print a running summary of interface statistics.
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* Repeat display every interval seconds, showing statistics
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* collected over that interval. Assumes that interval is non-zero.
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* First line printed at top of screen is always cumulative.
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*/
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static void
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sidewaysintpr(interval, off)
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unsigned interval;
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u_long off;
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{
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struct ifnet ifnet;
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u_long firstifnet;
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register struct iftot *ip, *total;
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register int line;
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struct iftot *lastif, *sum, *interesting;
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int oldmask;
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if (kread(off, (char *)&firstifnet, sizeof (u_long)))
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return;
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lastif = iftot;
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sum = iftot + MAXIF - 1;
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total = sum - 1;
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interesting = iftot;
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for (off = firstifnet, ip = iftot; off;) {
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char *cp;
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if (kread(off, (char *)&ifnet, sizeof ifnet))
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break;
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ip->ift_name[0] = '(';
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if (kread((u_long)ifnet.if_name, ip->ift_name + 1, 15))
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break;
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if (interface && strcmp(ip->ift_name + 1, interface) == 0 &&
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unit == ifnet.if_unit)
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interesting = ip;
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ip->ift_name[15] = '\0';
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cp = index(ip->ift_name, '\0');
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sprintf(cp, "%d)", ifnet.if_unit);
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ip++;
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if (ip >= iftot + MAXIF - 2)
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break;
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off = (u_long) ifnet.if_next;
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}
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lastif = ip;
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(void)signal(SIGALRM, catchalarm);
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signalled = NO;
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(void)alarm(interval);
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banner:
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printf(" input %s%-6.6s %soutput ", bflag ? " " : "",
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interesting->ift_name, bflag ? " " : "");
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if (lastif - iftot > 0) {
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if (dflag)
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printf(" ");
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printf(" input %s(Total) %soutput", bflag ? " " : "",
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bflag ? " " : "");
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}
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for (ip = iftot; ip < iftot + MAXIF; ip++) {
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ip->ift_ip = 0;
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ip->ift_ie = 0;
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ip->ift_op = 0;
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ip->ift_oe = 0;
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ip->ift_co = 0;
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ip->ift_dr = 0;
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ip->ift_ib = 0;
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ip->ift_ob = 0;
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}
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putchar('\n');
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printf("%8.8s %5.5s ", "packets", "errs");
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if (bflag)
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printf("%10.10s ","bytes");
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printf("%8.8s %5.5s ", "packets", "errs");
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if (bflag)
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printf("%10.10s ","bytes");
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printf("%5.5s ", "colls");
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if (dflag)
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printf("%5.5s ", "drops");
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if (lastif - iftot > 0) {
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printf(" %8.8s %5.5s", "packets", "errs");
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if (bflag)
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printf(" %10.10s", "bytes");
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printf(" %8.8s %5.5s", "packets", "errs");
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if (bflag)
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printf(" %10.10s", "bytes");
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printf(" %5.5s", "colls");
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if (dflag)
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printf(" %5.5s", "drops");
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}
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putchar('\n');
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fflush(stdout);
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line = 0;
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loop:
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sum->ift_ip = 0;
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sum->ift_ie = 0;
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sum->ift_op = 0;
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sum->ift_oe = 0;
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sum->ift_co = 0;
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sum->ift_dr = 0;
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sum->ift_ib = 0;
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sum->ift_ob = 0;
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for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
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if (kread(off, (char *)&ifnet, sizeof ifnet)) {
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off = 0;
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continue;
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}
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if (ip == interesting) {
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printf("%8d %5d ",
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ifnet.if_ipackets - ip->ift_ip,
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ifnet.if_ierrors - ip->ift_ie);
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if (bflag)
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printf("%10d ", ifnet.if_ibytes - ip->ift_ib);
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printf("%8d %5d ",
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ifnet.if_opackets - ip->ift_op,
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ifnet.if_oerrors - ip->ift_oe);
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if (bflag)
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printf("%10d ", ifnet.if_obytes - ip->ift_ob);
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printf("%5d", ifnet.if_collisions - ip->ift_co);
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if (dflag)
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printf(" %5d",
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ifnet.if_snd.ifq_drops - ip->ift_dr);
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}
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ip->ift_ip = ifnet.if_ipackets;
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ip->ift_ie = ifnet.if_ierrors;
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ip->ift_op = ifnet.if_opackets;
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ip->ift_oe = ifnet.if_oerrors;
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ip->ift_co = ifnet.if_collisions;
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ip->ift_dr = ifnet.if_snd.ifq_drops;
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ip->ift_ib = ifnet.if_ibytes;
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ip->ift_ob = ifnet.if_obytes;
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sum->ift_ip += ip->ift_ip;
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sum->ift_ie += ip->ift_ie;
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sum->ift_op += ip->ift_op;
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sum->ift_oe += ip->ift_oe;
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sum->ift_co += ip->ift_co;
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sum->ift_dr += ip->ift_dr;
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sum->ift_ib += ip->ift_ib;
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sum->ift_ob += ip->ift_ob;
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off = (u_long) ifnet.if_next;
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}
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if (lastif - iftot > 0) {
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printf(" %8d %5d",
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sum->ift_ip - total->ift_ip,
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sum->ift_ie - total->ift_ie);
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if (bflag)
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printf(" %10d", sum->ift_ib - total->ift_ib);
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printf(" %8d %5d",
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sum->ift_op - total->ift_op,
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sum->ift_oe - total->ift_oe);
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if (bflag)
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printf(" %10d", sum->ift_ob - total->ift_ob);
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printf(" %5d", sum->ift_co - total->ift_co);
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if (dflag)
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printf(" %5d", sum->ift_dr - total->ift_dr);
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}
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*total = *sum;
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putchar('\n');
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fflush(stdout);
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line++;
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oldmask = sigblock(sigmask(SIGALRM));
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if (! signalled) {
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sigpause(0);
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}
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sigsetmask(oldmask);
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signalled = NO;
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(void)alarm(interval);
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if (line == 21)
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goto banner;
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goto loop;
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/*NOTREACHED*/
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}
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/*
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* Called if an interval expires before sidewaysintpr has completed a loop.
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* Sets a flag to not wait for the alarm.
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*/
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static void
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catchalarm(signo)
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int signo;
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{
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signalled = YES;
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}
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