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- /*
- * Copyright (c) 1983, 1988 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)if.c 5.15 (Berkeley) 3/1/91";
- #endif /* not lint */
-
- #include <sys/types.h>
- #include <sys/socket.h>
-
- #include <net/if.h>
- #include <net/if_dl.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 <stdio.h>
- #include <signal.h>
-
- #define YES 1
- #define NO 0
-
- extern int tflag;
- extern int dflag;
- extern int nflag;
- extern char *interface;
- extern int unit;
- extern char *routename(), *netname(), *ns_phost();
- char *index();
-
- /*
- * Print a description of the network interfaces.
- */
- intpr(interval, ifnetaddr)
- int interval;
- off_t ifnetaddr;
- {
- struct ifnet ifnet;
- union {
- struct ifaddr ifa;
- struct in_ifaddr in;
- struct ns_ifaddr ns;
- struct iso_ifaddr iso;
- } ifaddr;
- off_t ifaddraddr;
- struct sockaddr *sa;
- char name[16];
-
- if (ifnetaddr == 0) {
- printf("ifnet: symbol not defined\n");
- return;
- }
- if (interval) {
- sidewaysintpr((unsigned)interval, ifnetaddr);
- return;
- }
- kvm_read(ifnetaddr, (char *)&ifnetaddr, sizeof ifnetaddr);
- printf("%-5.5s %-5.5s %-11.11s %-15.15s %8.8s %5.5s %8.8s %5.5s",
- "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs",
- "Opkts", "Oerrs");
- printf(" %5s", "Coll");
- if (tflag)
- printf(" %s", "Time");
- if (dflag)
- printf(" %s", "Drop");
- putchar('\n');
- ifaddraddr = 0;
- while (ifnetaddr || ifaddraddr) {
- struct sockaddr_in *sin;
- register char *cp;
- int n, m;
- struct in_addr inet_makeaddr();
-
- if (ifaddraddr == 0) {
- kvm_read(ifnetaddr, (char *)&ifnet, sizeof ifnet);
- kvm_read((off_t)ifnet.if_name, name, 16);
- name[15] = '\0';
- ifnetaddr = (off_t) ifnet.if_next;
- if (interface != 0 &&
- (strcmp(name, interface) != 0 || unit != ifnet.if_unit))
- continue;
- cp = index(name, '\0');
- *cp++ = ifnet.if_unit + '0';
- if ((ifnet.if_flags&IFF_UP) == 0)
- *cp++ = '*';
- *cp = '\0';
- ifaddraddr = (off_t)ifnet.if_addrlist;
- }
- printf("%-5.5s %-5d ", name, ifnet.if_mtu);
- if (ifaddraddr == 0) {
- printf("%-11.11s ", "none");
- printf("%-15.15s ", "none");
- } else {
- kvm_read(ifaddraddr, (char *)&ifaddr, sizeof ifaddr);
- #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("%-11.11s ", "none");
- printf("%-15.15s ", "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("%-11.11s ", netname(in));
- #else
- printf("%-11.11s ",
- netname(htonl(ifaddr.in.ia_subnet),
- ifaddr.in.ia_subnetmask));
- #endif
- printf("%-15.15s ", routename(sin->sin_addr));
- break;
- case AF_NS:
- {
- struct sockaddr_ns *sns =
- (struct sockaddr_ns *)sa;
- u_long net;
- char netnum[8];
- char *ns_phost();
-
- *(union ns_net *) &net = sns->sns_addr.x_net;
- sprintf(netnum, "%lxH", ntohl(net));
- upHex(netnum);
- printf("ns:%-8s ", netnum);
- printf("%-15s ", ns_phost(sns));
- }
- break;
- case AF_LINK:
- {
- struct sockaddr_dl *sdl =
- (struct sockaddr_dl *)sa;
- cp = (char *)LLADDR(sdl);
- n = sdl->sdl_alen;
- }
- m = printf("<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("%x%c", *cp++ & 0xff,
- n > 0 ? '.' : ' ');
- m = 28 - m;
- while (m-- > 0)
- putchar(' ');
- break;
- }
- ifaddraddr = (off_t)ifaddr.ifa.ifa_next;
- }
- printf("%8d %5d %8d %5d %5d",
- ifnet.if_ipackets, ifnet.if_ierrors,
- ifnet.if_opackets, ifnet.if_oerrors,
- ifnet.if_collisions);
- if (tflag)
- printf(" %3d", ifnet.if_timer);
- if (dflag)
- printf(" %3d", ifnet.if_snd.ifq_drops);
- putchar('\n');
- }
- }
-
- #define MAXIF 10
- struct iftot {
- char ift_name[16]; /* interface name */
- int ift_ip; /* input packets */
- int ift_ie; /* input errors */
- int ift_op; /* output packets */
- int ift_oe; /* output errors */
- int 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.
- */
- sidewaysintpr(interval, off)
- unsigned interval;
- off_t off;
- {
- struct ifnet ifnet;
- off_t firstifnet;
- register struct iftot *ip, *total;
- register int line;
- struct iftot *lastif, *sum, *interesting;
- int oldmask;
- void catchalarm();
-
- kvm_read(off, (char *)&firstifnet, sizeof (off_t));
- lastif = iftot;
- sum = iftot + MAXIF - 1;
- total = sum - 1;
- interesting = iftot;
- for (off = firstifnet, ip = iftot; off;) {
- char *cp;
-
- kvm_read(off, (char *)&ifnet, sizeof ifnet);
- ip->ift_name[0] = '(';
- kvm_read((off_t)ifnet.if_name, ip->ift_name + 1, 15);
- if (interface && strcmp(ip->ift_name + 1, interface) == 0 &&
- unit == ifnet.if_unit)
- interesting = ip;
- ip->ift_name[15] = '\0';
- cp = index(ip->ift_name, '\0');
- sprintf(cp, "%d)", ifnet.if_unit);
- ip++;
- if (ip >= iftot + MAXIF - 2)
- break;
- off = (off_t) ifnet.if_next;
- }
- lastif = ip;
-
- (void)signal(SIGALRM, catchalarm);
- signalled = NO;
- (void)alarm(interval);
- banner:
- printf(" input %-6.6s output ", interesting->ift_name);
- if (lastif - iftot > 0) {
- if (dflag)
- printf(" ");
- printf(" input (Total) output");
- }
- for (ip = iftot; ip < iftot + MAXIF; ip++) {
- ip->ift_ip = 0;
- ip->ift_ie = 0;
- ip->ift_op = 0;
- ip->ift_oe = 0;
- ip->ift_co = 0;
- ip->ift_dr = 0;
- }
- putchar('\n');
- 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)
- 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_ie = 0;
- sum->ift_op = 0;
- sum->ift_oe = 0;
- sum->ift_co = 0;
- sum->ift_dr = 0;
- for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
- kvm_read(off, (char *)&ifnet, sizeof ifnet);
- if (ip == interesting) {
- printf("%8d %5d %8d %5d %5d",
- 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_ie = ifnet.if_ierrors;
- ip->ift_op = ifnet.if_opackets;
- 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_ie += ip->ift_ie;
- sum->ift_op += ip->ift_op;
- sum->ift_oe += ip->ift_oe;
- sum->ift_co += ip->ift_co;
- sum->ift_dr += ip->ift_dr;
- off = (off_t) ifnet.if_next;
- }
- if (lastif - iftot > 0) {
- printf(" %8d %5d %8d %5d %5d",
- 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.
- */
- void
- catchalarm()
- {
- signalled = YES;
- }
-