684 lines
17 KiB
C
684 lines
17 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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/*
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static char sccsid[] = "@(#)if.c 8.3 (Berkeley) 4/28/95";
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*/
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static const char rcsid[] =
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"$FreeBSD$";
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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 <sys/sysctl.h>
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#include <sys/time.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <net/bridge.h>
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#include <net/ethernet.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netipx/ipx.h>
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#include <netipx/ipx_if.h>
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#ifdef ISO
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#include <netiso/iso.h>
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#include <netiso/iso_var.h>
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#endif
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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 <stdlib.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 (u_int, u_long);
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static void catchalarm (int);
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#ifdef INET6
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char *netname6 (struct sockaddr_in6 *, struct in6_addr *);
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static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
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static int bdg_done;
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#endif
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/* print bridge statistics */
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void
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bdg_stats(u_long dummy __unused, char *name, int af __unused)
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{
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int i;
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size_t slen ;
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struct bdg_stats s ;
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int mib[4] ;
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slen = sizeof(s);
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mib[0] = CTL_NET ;
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mib[1] = PF_LINK ;
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mib[2] = IFT_ETHER ;
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mib[3] = PF_BDG ;
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if (sysctl(mib,4, &s,&slen,NULL,0)==-1)
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return ; /* no bridging */
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#ifdef INET6
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if (bdg_done != 0)
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return;
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else
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bdg_done = 1;
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#endif
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printf("-- Bridging statistics (%s) --\n", name) ;
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printf(
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"Name In Out Forward Drop Bcast Mcast Local Unknown\n");
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for (i = 0 ; i < 16 ; i++) {
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if (s.s[i].name[0])
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printf("%-6s %9ld%9ld%9ld%9ld%9ld%9ld%9ld%9ld\n",
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s.s[i].name,
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s.s[i].p_in[(int)BDG_IN],
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s.s[i].p_in[(int)BDG_OUT],
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s.s[i].p_in[(int)BDG_FORWARD],
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s.s[i].p_in[(int)BDG_DROP],
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s.s[i].p_in[(int)BDG_BCAST],
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s.s[i].p_in[(int)BDG_MCAST],
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s.s[i].p_in[(int)BDG_LOCAL],
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s.s[i].p_in[(int)BDG_UNKNOWN] );
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}
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}
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/*
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* Display a formatted value, or a '-' in the same space.
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*/
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static void
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show_stat(const char *fmt, int width, u_long value, short showvalue)
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{
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char newfmt[32];
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/* Construct the format string */
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if (showvalue) {
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sprintf(newfmt, "%%%d%s", width, fmt);
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printf(newfmt, value);
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} else {
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sprintf(newfmt, "%%%ds", width);
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printf(newfmt, "-");
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}
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}
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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(int interval, u_long ifnetaddr, void (*pfunc)(char *))
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{
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struct ifnet ifnet;
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struct ifnethead ifnethead;
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union {
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struct ifaddr ifa;
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struct in_ifaddr in;
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#ifdef INET6
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struct in6_ifaddr in6;
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#endif
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struct ipx_ifaddr ipx;
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#ifdef NS
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struct ns_ifaddr ns;
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#endif
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#ifdef ISO
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struct iso_ifaddr iso;
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#endif
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} ifaddr;
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u_long ifaddraddr;
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u_long ifaddrfound;
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u_long ifnetfound;
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u_long opackets;
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u_long ipackets;
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u_long obytes;
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u_long ibytes;
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u_long oerrors;
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u_long ierrors;
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u_long collisions;
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short timer;
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int drops;
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struct sockaddr *sa = NULL;
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char name[32], tname[16];
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short network_layer;
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short link_layer;
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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 *)&ifnethead, sizeof ifnethead))
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return;
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ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
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if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
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return;
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if (!pfunc) {
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printf("%-5.5s %-5.5s %-13.13s %-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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}
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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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#ifdef INET6
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struct sockaddr_in6 *sin6;
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#endif
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register char *cp;
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int n, m;
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network_layer = 0;
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link_layer = 0;
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if (ifaddraddr == 0) {
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ifnetfound = ifnetaddr;
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if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet) ||
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kread((u_long)ifnet.if_name, tname, 16))
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return;
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tname[15] = '\0';
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ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
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snprintf(name, 32, "%s%d", tname, ifnet.if_unit);
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if (interface != 0 && (strcmp(name, interface) != 0))
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continue;
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cp = index(name, '\0');
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if (pfunc) {
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(*pfunc)(name);
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continue;
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}
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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)TAILQ_FIRST(&ifnet.if_addrhead);
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}
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ifaddrfound = ifaddraddr;
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/*
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* Get the interface stats. These may get
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* overriden below on a per-interface basis.
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*/
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opackets = ifnet.if_opackets;
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ipackets = ifnet.if_ipackets;
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obytes = ifnet.if_obytes;
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ibytes = ifnet.if_ibytes;
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oerrors = ifnet.if_oerrors;
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ierrors = ifnet.if_ierrors;
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collisions = ifnet.if_collisions;
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timer = ifnet.if_timer;
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drops = ifnet.if_snd.ifq_drops;
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if (ifaddraddr == 0) {
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printf("%-5.5s %-5lu ", name, ifnet.if_mtu);
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printf("%-13.13s ", "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);
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sa = (struct sockaddr *)cp;
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if (af != AF_UNSPEC && sa->sa_family != af) {
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ifaddraddr =
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(u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link);
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continue;
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}
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printf("%-5.5s %-5lu ", name, ifnet.if_mtu);
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switch (sa->sa_family) {
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case AF_UNSPEC:
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printf("%-13.13s ", "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("%-13.13s ", netname(in.s_addr,
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ifaddr.in.ia_subnetmask));
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#else
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printf("%-13.13s ",
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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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network_layer = 1;
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break;
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#ifdef INET6
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case AF_INET6:
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sin6 = (struct sockaddr_in6 *)sa;
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printf("%-11.11s ",
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netname6(&ifaddr.in6.ia_addr,
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&ifaddr.in6.ia_prefixmask.sin6_addr));
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printf("%-17.17s ",
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(char *)inet_ntop(AF_INET6,
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&sin6->sin6_addr,
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ntop_buf, sizeof(ntop_buf)));
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network_layer = 1;
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break;
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#endif /*INET6*/
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case AF_IPX:
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{
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struct sockaddr_ipx *sipx =
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(struct sockaddr_ipx *)sa;
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u_long net;
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char netnum[10];
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*(union ipx_net *) &net = sipx->sipx_addr.x_net;
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sprintf(netnum, "%lx", (u_long)ntohl(net));
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printf("ipx:%-8s ", netnum);
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/* printf("ipx:%-8s ", netname(net, 0L)); */
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printf("%-15s ",
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ipx_phost((struct sockaddr *)sipx));
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}
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break;
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case AF_APPLETALK:
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printf("atalk:%-12.12s ",atalk_print(sa,0x10) );
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printf("%-9.9s ",atalk_print(sa,0x0b) );
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break;
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#ifdef NS
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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[10];
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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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#endif
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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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char linknum[10];
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cp = (char *)LLADDR(sdl);
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n = sdl->sdl_alen;
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sprintf(linknum, "<Link#%d>", sdl->sdl_index);
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m = printf("%-11.11s ", linknum);
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}
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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 = 30 - m;
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while (m-- > 0)
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putchar(' ');
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link_layer = 1;
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break;
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}
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/*
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* Fixup the statistics for interfaces that
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* update stats for their network addresses
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*/
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if (network_layer) {
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opackets = ifaddr.in.ia_ifa.if_opackets;
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ipackets = ifaddr.in.ia_ifa.if_ipackets;
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obytes = ifaddr.in.ia_ifa.if_obytes;
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ibytes = ifaddr.in.ia_ifa.if_ibytes;
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}
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ifaddraddr = (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link);
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}
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show_stat("lu", 8, ipackets, link_layer|network_layer);
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printf(" ");
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show_stat("lu", 5, ierrors, link_layer);
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printf(" ");
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if (bflag) {
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show_stat("lu", 10, ibytes, link_layer|network_layer);
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printf(" ");
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}
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show_stat("lu", 8, opackets, link_layer|network_layer);
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printf(" ");
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show_stat("lu", 5, oerrors, link_layer);
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printf(" ");
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if (bflag) {
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show_stat("lu", 10, obytes, link_layer|network_layer);
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printf(" ");
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}
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show_stat("lu", 5, collisions, link_layer);
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if (tflag) {
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printf(" ");
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show_stat("d", 3, timer, link_layer);
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}
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if (dflag) {
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printf(" ");
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show_stat("d", 3, drops, link_layer);
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}
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putchar('\n');
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if (aflag && ifaddrfound) {
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/*
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* Print family's multicast addresses
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*/
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struct ifmultiaddr *multiaddr;
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struct ifmultiaddr ifma;
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union {
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struct sockaddr sa;
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struct sockaddr_in in;
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#ifdef INET6
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struct sockaddr_in6 in6;
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#endif /* INET6 */
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struct sockaddr_dl dl;
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} msa;
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const char *fmt;
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TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
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if (kread((u_long)multiaddr, (char *)&ifma,
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sizeof ifma))
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break;
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multiaddr = &ifma;
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if (kread((u_long)ifma.ifma_addr, (char *)&msa,
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sizeof msa))
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break;
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if (msa.sa.sa_family != sa->sa_family)
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continue;
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fmt = 0;
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switch (msa.sa.sa_family) {
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case AF_INET:
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fmt = routename(msa.in.sin_addr.s_addr);
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break;
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#ifdef INET6
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case AF_INET6:
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printf("%23s %-19.19s(refs: %d)\n", "",
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inet_ntop(AF_INET6,
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&msa.in6.sin6_addr,
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ntop_buf,
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sizeof(ntop_buf)),
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ifma.ifma_refcount);
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break;
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#endif /* INET6 */
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case AF_LINK:
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switch (msa.dl.sdl_type) {
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case IFT_ETHER:
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case IFT_FDDI:
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fmt = ether_ntoa(
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(struct ether_addr *)
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LLADDR(&msa.dl));
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break;
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}
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break;
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}
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if (fmt)
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printf("%23s %s\n", "", fmt);
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}
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}
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}
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}
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struct iftot {
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SLIST_ENTRY(iftot) chain;
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char ift_name[16]; /* interface name */
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u_long ift_ip; /* input packets */
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u_long ift_ie; /* input errors */
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u_long ift_op; /* output packets */
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u_long ift_oe; /* output errors */
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u_long ift_co; /* collisions */
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u_int ift_dr; /* drops */
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u_long ift_ib; /* input bytes */
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u_long ift_ob; /* output bytes */
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};
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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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* XXX - should be rewritten to use ifmib(4).
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*/
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static void
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sidewaysintpr(unsigned interval, 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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struct ifnethead ifnethead;
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struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
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register int line;
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int oldmask, first;
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u_long interesting_off;
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if (kread(off, (char *)&ifnethead, sizeof ifnethead))
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return;
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firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
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if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
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printf("malloc failed\n");
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exit(1);
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}
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memset(iftot, 0, sizeof(struct iftot));
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interesting = NULL;
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interesting_off = 0;
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for (off = firstifnet, ip = iftot; off;) {
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char name[16], tname[16];
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if (kread(off, (char *)&ifnet, sizeof ifnet))
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break;
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if (kread((u_long)ifnet.if_name, tname, 16))
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break;
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tname[15] = '\0';
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snprintf(name, 16, "%s%d", tname, ifnet.if_unit);
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if (interface && strcmp(name, interface) == 0) {
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interesting = ip;
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interesting_off = off;
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}
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snprintf(ip->ift_name, 16, "(%s)", name);;
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if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
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printf("malloc failed\n");
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exit(1);
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}
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memset(ipn, 0, sizeof(struct iftot));
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SLIST_NEXT(ip, chain) = ipn;
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ip = ipn;
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off = (u_long)TAILQ_NEXT(&ifnet, if_link);
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}
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if ((total = malloc(sizeof(struct iftot))) == NULL) {
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printf("malloc failed\n");
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exit(1);
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}
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memset(total, 0, sizeof(struct iftot));
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if ((sum = malloc(sizeof(struct iftot))) == NULL) {
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printf("malloc failed\n");
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exit(1);
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}
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memset(sum, 0, sizeof(struct iftot));
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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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first = 1;
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banner:
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printf("%17s %14s %16s", "input",
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interesting ? interesting->ift_name : "(Total)", "output");
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putchar('\n');
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printf("%10s %5s %10s %10s %5s %10s %5s",
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"packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
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if (dflag)
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printf(" %5.5s", "drops");
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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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if (interesting != NULL) {
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ip = interesting;
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if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
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printf("???\n");
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exit(1);
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};
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if (!first) {
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printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
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ifnet.if_ipackets - ip->ift_ip,
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ifnet.if_ierrors - ip->ift_ie,
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ifnet.if_ibytes - ip->ift_ib,
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ifnet.if_opackets - ip->ift_op,
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ifnet.if_oerrors - ip->ift_oe,
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ifnet.if_obytes - ip->ift_ob,
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ifnet.if_collisions - ip->ift_co);
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if (dflag)
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printf(" %5u", 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_ib = ifnet.if_ibytes;
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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_ob = ifnet.if_obytes;
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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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} else {
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sum->ift_ip = 0;
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sum->ift_ie = 0;
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sum->ift_ib = 0;
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sum->ift_op = 0;
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sum->ift_oe = 0;
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sum->ift_ob = 0;
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sum->ift_co = 0;
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sum->ift_dr = 0;
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for (off = firstifnet, ip = iftot;
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off && SLIST_NEXT(ip, chain) != NULL;
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ip = SLIST_NEXT(ip, chain)) {
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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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sum->ift_ip += ifnet.if_ipackets;
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sum->ift_ie += ifnet.if_ierrors;
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sum->ift_ib += ifnet.if_ibytes;
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sum->ift_op += ifnet.if_opackets;
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sum->ift_oe += ifnet.if_oerrors;
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sum->ift_ob += ifnet.if_obytes;
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sum->ift_co += ifnet.if_collisions;
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sum->ift_dr += ifnet.if_snd.ifq_drops;
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off = (u_long)TAILQ_NEXT(&ifnet, if_link);
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}
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if (!first) {
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printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
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sum->ift_ip - total->ift_ip,
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sum->ift_ie - total->ift_ie,
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sum->ift_ib - total->ift_ib,
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sum->ift_op - total->ift_op,
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sum->ift_oe - total->ift_oe,
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sum->ift_ob - total->ift_ob,
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sum->ift_co - total->ift_co);
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if (dflag)
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printf(" %5u", sum->ift_dr - total->ift_dr);
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}
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*total = *sum;
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}
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if (!first)
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putchar('\n');
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fflush(stdout);
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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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line++;
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first = 0;
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if (line == 21)
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goto banner;
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else
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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(int signo __unused)
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{
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signalled = YES;
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}
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