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1.24 ! pvalchev 1: /* $OpenBSD: if.c,v 1.23 2001/02/06 05:24:10 fgsch Exp $ */
1.6 deraadt 2: /* $NetBSD: if.c,v 1.16.4.2 1996/06/07 21:46:46 thorpej Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94";
40: #else
1.24 ! pvalchev 41: static char *rcsid = "$OpenBSD: if.c,v 1.23 2001/02/06 05:24:10 fgsch Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
45: #include <sys/types.h>
46: #include <sys/protosw.h>
47: #include <sys/socket.h>
48:
49: #include <net/if.h>
50: #include <net/if_dl.h>
1.5 deraadt 51: #include <net/if_types.h>
1.1 deraadt 52: #include <netinet/in.h>
53: #include <netinet/in_var.h>
1.11 millert 54: #include <netinet/if_ether.h>
1.1 deraadt 55: #include <netns/ns.h>
56: #include <netns/ns_if.h>
1.8 mickey 57: #include <netipx/ipx.h>
58: #include <netipx/ipx_if.h>
1.1 deraadt 59: #include <netiso/iso.h>
60: #include <netiso/iso_var.h>
61: #include <arpa/inet.h>
62:
1.13 millert 63: #include <limits.h>
1.1 deraadt 64: #include <signal.h>
65: #include <stdio.h>
66: #include <string.h>
67: #include <unistd.h>
68:
69: #include "netstat.h"
70:
71: #define YES 1
72: #define NO 0
73:
74: static void sidewaysintpr __P((u_int, u_long));
75: static void catchalarm __P((int));
76:
77: /*
78: * Print a description of the network interfaces.
1.3 deraadt 79: * NOTE: ifnetaddr is the location of the kernel global "ifnet",
80: * which is a TAILQ_HEAD.
1.1 deraadt 81: */
82: void
83: intpr(interval, ifnetaddr)
84: int interval;
85: u_long ifnetaddr;
86: {
87: struct ifnet ifnet;
88: union {
89: struct ifaddr ifa;
90: struct in_ifaddr in;
1.18 itojun 91: #ifdef INET6
92: struct in6_ifaddr in6;
93: #endif
1.1 deraadt 94: struct ns_ifaddr ns;
1.8 mickey 95: struct ipx_ifaddr ipx;
1.1 deraadt 96: struct iso_ifaddr iso;
97: } ifaddr;
98: u_long ifaddraddr;
99: struct sockaddr *sa;
1.3 deraadt 100: struct ifnet_head ifhead; /* TAILQ_HEAD */
101: char name[IFNAMSIZ];
1.1 deraadt 102:
103: if (ifnetaddr == 0) {
104: printf("ifnet: symbol not defined\n");
105: return;
106: }
107: if (interval) {
108: sidewaysintpr((unsigned)interval, ifnetaddr);
109: return;
110: }
1.3 deraadt 111:
112: /*
113: * Find the pointer to the first ifnet structure. Replace
114: * the pointer to the TAILQ_HEAD with the actual pointer
115: * to the first list element.
116: */
117: if (kread(ifnetaddr, (char *)&ifhead, sizeof ifhead))
1.1 deraadt 118: return;
1.3 deraadt 119: ifnetaddr = (u_long)ifhead.tqh_first;
120:
1.22 camield 121: printf("%-7.7s %-5.5s %-11.11s %-17.17s ",
122: "Name", "Mtu", "Network", "Address");
123: if (bflag)
124: printf("%10.10s %10.10s", "Ibytes", "Obytes");
125: else
126: printf("%8.8s %5.5s %8.8s %5.5s %5.5s",
127: "Ipkts", "Ierrs", "Opkts", "Oerrs", "Colls");
1.1 deraadt 128: if (tflag)
129: printf(" %s", "Time");
130: if (dflag)
131: printf(" %s", "Drop");
132: putchar('\n');
133: ifaddraddr = 0;
134: while (ifnetaddr || ifaddraddr) {
135: struct sockaddr_in *sin;
1.18 itojun 136: #ifdef INET6
137: struct sockaddr_in6 *sin6;
138: #endif
1.1 deraadt 139: register char *cp;
140: int n, m;
141:
142: if (ifaddraddr == 0) {
1.3 deraadt 143: if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
1.1 deraadt 144: return;
1.3 deraadt 145: bcopy(ifnet.if_xname, name, IFNAMSIZ);
146: name[IFNAMSIZ - 1] = '\0'; /* sanity */
1.1 deraadt 147: ifnetaddr = (u_long)ifnet.if_list.tqe_next;
1.3 deraadt 148: if (interface != 0 && strcmp(name, interface) != 0)
1.1 deraadt 149: continue;
1.10 millert 150: cp = strchr(name, '\0');
1.1 deraadt 151: if ((ifnet.if_flags & IFF_UP) == 0)
152: *cp++ = '*';
153: *cp = '\0';
154: ifaddraddr = (u_long)ifnet.if_addrlist.tqh_first;
155: }
1.16 mickey 156: printf("%-7.7s %-5ld ", name, ifnet.if_mtu);
1.1 deraadt 157: if (ifaddraddr == 0) {
158: printf("%-11.11s ", "none");
159: printf("%-15.15s ", "none");
160: } else {
161: if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
162: ifaddraddr = 0;
163: continue;
164: }
165: #define CP(x) ((char *)(x))
166: cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
167: CP(&ifaddr); sa = (struct sockaddr *)cp;
168: switch (sa->sa_family) {
169: case AF_UNSPEC:
170: printf("%-11.11s ", "none");
171: printf("%-17.17s ", "none");
172: break;
173: case AF_INET:
174: sin = (struct sockaddr_in *)sa;
175: #ifdef notdef
176: /* can't use inet_makeaddr because kernel
177: * keeps nets unshifted.
178: */
179: in = inet_makeaddr(ifaddr.in.ia_subnet,
180: INADDR_ANY);
1.20 itojun 181: cp = netname(in.s_addr,
182: ifaddr.in.ia_subnetmask);
1.1 deraadt 183: #else
1.20 itojun 184: cp = netname(ifaddr.in.ia_subnet,
185: ifaddr.in.ia_subnetmask);
1.1 deraadt 186: #endif
1.20 itojun 187: if (vflag)
188: n = strlen(cp) < 11 ? 11 : strlen(cp);
189: else
190: n = 11;
191: printf("%-*.*s ", n, n, cp);
192: cp = routename(sin->sin_addr.s_addr);
193: if (vflag)
194: n = strlen(cp) < 17 ? 17 : strlen(cp);
195: else
196: n = 17;
197: printf("%-*.*s ", n, n, cp);
1.1 deraadt 198:
199: if (aflag) {
200: u_long multiaddr;
201: struct in_multi inm;
202:
203: multiaddr = (u_long)ifaddr.in.ia_multiaddrs.lh_first;
204: while (multiaddr != 0) {
205: kread(multiaddr, (char *)&inm,
206: sizeof inm);
1.19 itojun 207: printf("\n%25s %-17.17s ", "",
1.1 deraadt 208: routename(inm.inm_addr.s_addr));
209: multiaddr = (u_long)inm.inm_list.le_next;
210: }
1.8 mickey 211: }
212: break;
1.18 itojun 213: #ifdef INET6
214: case AF_INET6:
215: sin6 = (struct sockaddr_in6 *)sa;
1.20 itojun 216: #ifdef KAME_SCOPEID
217: if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
218: sin6->sin6_scope_id =
219: ntohs(*(u_int16_t *)
220: &sin6->sin6_addr.s6_addr[2]);
221: /* too little width */
222: if (!vflag)
223: sin6->sin6_scope_id = 0;
224: sin6->sin6_addr.s6_addr[2] = 0;
225: sin6->sin6_addr.s6_addr[3] = 0;
226: }
227: #endif
228: cp = netname6(&ifaddr.in6.ia_addr,
229: &ifaddr.in6.ia_prefixmask.sin6_addr);
230: if (vflag)
231: n = strlen(cp) < 11 ? 11 : strlen(cp);
232: else
233: n = 11;
234: printf("%-*.*s ", n, n, cp);
235: cp = routename6(sin6);
236: if (vflag)
237: n = strlen(cp) < 17 ? 17 : strlen(cp);
238: else
239: n = 17;
240: printf("%-*.*s ", n, n, cp);
1.19 itojun 241: if (aflag) {
242: u_long multiaddr;
243: struct in6_multi inm;
244: char hbuf[INET6_ADDRSTRLEN];
245:
246: multiaddr = (u_long)ifaddr.in6.ia6_multiaddrs.lh_first;
247: while (multiaddr != 0) {
248: kread(multiaddr, (char *)&inm,
249: sizeof inm);
250: inet_ntop(AF_INET6, &inm.in6m_addr,
251: hbuf, sizeof(hbuf));
252: if (vflag)
253: n = strlen(hbuf) < 17 ? 17 : strlen(hbuf);
254: else
255: n = 17;
256: printf("\n%25s %-*.*s ", "",
257: n, n, hbuf);
258: multiaddr = (u_long)inm.in6m_entry.le_next;
259: }
260: }
1.18 itojun 261: break;
262: #endif
1.8 mickey 263: case AF_IPX:
264: {
265: struct sockaddr_ipx *sipx =
266: (struct sockaddr_ipx *)sa;
267: u_long net;
268: char netnum[8];
269:
1.17 deraadt 270: *(union ipx_net *)&net = sipx->sipx_addr.ipx_net;
271: snprintf(netnum, sizeof netnum, "%xH",
272: ntohl(net));
1.8 mickey 273: upHex(netnum);
274: printf("ipx:%-8s", netnum);
275: printf("%-17s ",
276: ipx_phost((struct sockaddr *)sipx));
1.1 deraadt 277: }
1.15 denny 278: break;
279: case AF_APPLETALK:
280: printf("atlk:%-12s",atalk_print(sa,0x10) );
281: printf("%-12s ",atalk_print(sa,0x0b) );
1.1 deraadt 282: break;
283: case AF_NS:
284: {
285: struct sockaddr_ns *sns =
286: (struct sockaddr_ns *)sa;
287: u_long net;
288: char netnum[8];
289:
1.17 deraadt 290: *(union ns_net *)&net = sns->sns_addr.x_net;
291: snprintf(netnum, sizeof netnum, "%xH",
292: ntohl(net));
1.1 deraadt 293: upHex(netnum);
294: printf("ns:%-8s ", netnum);
295: printf("%-17s ",
296: ns_phost((struct sockaddr *)sns));
297: }
298: break;
299: case AF_LINK:
300: {
301: struct sockaddr_dl *sdl =
302: (struct sockaddr_dl *)sa;
1.5 deraadt 303: m = printf("%-11.11s ", "<Link>");
304: if (sdl->sdl_type == IFT_ETHER ||
1.23 fgsch 305: sdl->sdl_type == IFT_FDDI ||
306: sdl->sdl_type == IFT_ISO88025)
1.5 deraadt 307: printf("%-17.17s ",
1.11 millert 308: ether_ntoa((struct ether_addr *)LLADDR(sdl)));
1.5 deraadt 309: else {
310: cp = (char *)LLADDR(sdl);
311: n = sdl->sdl_alen;
312: goto hexprint;
313: }
1.1 deraadt 314: }
1.5 deraadt 315: break;
1.1 deraadt 316: default:
317: m = printf("(%d)", sa->sa_family);
318: for (cp = sa->sa_len + (char *)sa;
319: --cp > sa->sa_data && (*cp == 0);) {}
320: n = cp - sa->sa_data + 1;
321: cp = sa->sa_data;
322: hexprint:
323: while (--n >= 0)
324: m += printf("%x%c", *cp++ & 0xff,
325: n > 0 ? '.' : ' ');
326: m = 30 - m;
327: while (m-- > 0)
328: putchar(' ');
329: break;
330: }
331: ifaddraddr = (u_long)ifaddr.ifa.ifa_list.tqe_next;
332: }
1.22 camield 333: if (bflag)
334: printf("%10lu %10lu",
335: ifnet.if_ibytes, ifnet.if_obytes);
336: else
337: printf("%8lu %5lu %8lu %5lu %5lu",
338: ifnet.if_ipackets, ifnet.if_ierrors,
339: ifnet.if_opackets, ifnet.if_oerrors,
340: ifnet.if_collisions);
1.1 deraadt 341: if (tflag)
1.22 camield 342: printf(" %4d", ifnet.if_timer);
1.1 deraadt 343: if (dflag)
1.22 camield 344: printf(" %4d", ifnet.if_snd.ifq_drops);
1.1 deraadt 345: putchar('\n');
346: }
347: }
348:
1.4 deraadt 349: #define MAXIF 100
1.1 deraadt 350: struct iftot {
1.3 deraadt 351: char ift_name[IFNAMSIZ]; /* interface name */
1.1 deraadt 352: int ift_ip; /* input packets */
1.22 camield 353: int ift_ib; /* input bytes */
1.1 deraadt 354: int ift_ie; /* input errors */
355: int ift_op; /* output packets */
1.22 camield 356: int ift_ob; /* output bytes */
1.1 deraadt 357: int ift_oe; /* output errors */
358: int ift_co; /* collisions */
359: int ift_dr; /* drops */
360: } iftot[MAXIF];
361:
362: u_char signalled; /* set if alarm goes off "early" */
363:
364: /*
365: * Print a running summary of interface statistics.
366: * Repeat display every interval seconds, showing statistics
367: * collected over that interval. Assumes that interval is non-zero.
368: * First line printed at top of screen is always cumulative.
369: */
370: static void
371: sidewaysintpr(interval, off)
372: unsigned interval;
373: u_long off;
374: {
375: struct ifnet ifnet;
376: u_long firstifnet;
377: register struct iftot *ip, *total;
378: register int line;
379: struct iftot *lastif, *sum, *interesting;
1.3 deraadt 380: struct ifnet_head ifhead; /* TAILQ_HEAD */
1.1 deraadt 381: int oldmask;
382:
1.3 deraadt 383: /*
384: * Find the pointer to the first ifnet structure. Replace
385: * the pointer to the TAILQ_HEAD with the actual pointer
386: * to the first list element.
387: */
388: if (kread(off, (char *)&ifhead, sizeof ifhead))
1.1 deraadt 389: return;
1.3 deraadt 390: firstifnet = (u_long)ifhead.tqh_first;
391:
1.1 deraadt 392: lastif = iftot;
393: sum = iftot + MAXIF - 1;
394: total = sum - 1;
1.4 deraadt 395: interesting = (interface == NULL) ? iftot : NULL;
1.1 deraadt 396: for (off = firstifnet, ip = iftot; off;) {
397: if (kread(off, (char *)&ifnet, sizeof ifnet))
398: break;
1.6 deraadt 399: bzero(ip->ift_name, sizeof(ip->ift_name));
1.22 camield 400: snprintf(ip->ift_name, IFNAMSIZ, "%s", ifnet.if_xname);
1.6 deraadt 401: if (interface && strcmp(ifnet.if_xname, interface) == 0)
1.1 deraadt 402: interesting = ip;
403: ip++;
404: if (ip >= iftot + MAXIF - 2)
405: break;
406: off = (u_long)ifnet.if_list.tqe_next;
1.4 deraadt 407: }
408: if (interesting == NULL) {
409: fprintf(stderr, "%s: %s: unknown interface\n",
410: __progname, interface);
411: exit(1);
1.1 deraadt 412: }
413: lastif = ip;
414:
415: (void)signal(SIGALRM, catchalarm);
416: signalled = NO;
417: (void)alarm(interval);
418: banner:
1.22 camield 419: if (bflag)
420: printf("%7.7s in %8.8s %6.6s out %5.5s",
421: interesting->ift_name, " ",
422: interesting->ift_name, " ");
423: else
424: printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s",
425: interesting->ift_name, " ",
426: interesting->ift_name, " ", " ");
427: if (dflag)
428: printf(" %5.5s", " ");
1.1 deraadt 429: if (lastif - iftot > 0) {
1.22 camield 430: if (bflag)
431: printf(" %7.7s in %8.8s %6.6s out %5.5s",
432: "total", " ", "total", " ");
433: else
434: printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s",
435: "total", " ", "total", " ", " ");
1.1 deraadt 436: if (dflag)
1.22 camield 437: printf(" %5.5s", " ");
1.1 deraadt 438: }
439: for (ip = iftot; ip < iftot + MAXIF; ip++) {
440: ip->ift_ip = 0;
1.22 camield 441: ip->ift_ib = 0;
1.1 deraadt 442: ip->ift_ie = 0;
443: ip->ift_op = 0;
1.22 camield 444: ip->ift_ob = 0;
1.1 deraadt 445: ip->ift_oe = 0;
446: ip->ift_co = 0;
447: ip->ift_dr = 0;
448: }
449: putchar('\n');
1.22 camield 450: if (bflag)
451: printf("%10.10s %8.8s %10.10s %5.5s",
452: "bytes", " ", "bytes", " ");
453: else
454: printf("%8.8s %5.5s %8.8s %5.5s %5.5s",
455: "packets", "errs", "packets", "errs", "colls");
1.1 deraadt 456: if (dflag)
457: printf(" %5.5s", "drops");
1.22 camield 458: if (lastif - iftot > 0) {
459: if (bflag)
460: printf(" %10.10s %8.8s %10.10s %5.5s",
461: "bytes", " ", "bytes", " ");
462: else
463: printf(" %8.8s %5.5s %8.8s %5.5s %5.5s",
464: "packets", "errs", "packets", "errs", "colls");
465: if (dflag)
466: printf(" %5.5s", "drops");
467: }
1.1 deraadt 468: putchar('\n');
469: fflush(stdout);
470: line = 0;
471: loop:
472: sum->ift_ip = 0;
1.22 camield 473: sum->ift_ib = 0;
1.1 deraadt 474: sum->ift_ie = 0;
475: sum->ift_op = 0;
1.22 camield 476: sum->ift_ob = 0;
1.1 deraadt 477: sum->ift_oe = 0;
478: sum->ift_co = 0;
479: sum->ift_dr = 0;
480: for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
481: if (kread(off, (char *)&ifnet, sizeof ifnet)) {
482: off = 0;
483: continue;
484: }
485: if (ip == interesting) {
1.22 camield 486: if (bflag)
487: printf("%10lu %8.8s %10lu %5.5s",
488: ifnet.if_ibytes - ip->ift_ib, " ",
489: ifnet.if_obytes - ip->ift_ob, " ");
490: else
491: printf("%8lu %5lu %8lu %5lu %5lu",
492: ifnet.if_ipackets - ip->ift_ip,
493: ifnet.if_ierrors - ip->ift_ie,
494: ifnet.if_opackets - ip->ift_op,
495: ifnet.if_oerrors - ip->ift_oe,
496: ifnet.if_collisions - ip->ift_co);
1.1 deraadt 497: if (dflag)
498: printf(" %5d",
499: ifnet.if_snd.ifq_drops - ip->ift_dr);
500: }
501: ip->ift_ip = ifnet.if_ipackets;
1.22 camield 502: ip->ift_ib = ifnet.if_ibytes;
1.1 deraadt 503: ip->ift_ie = ifnet.if_ierrors;
504: ip->ift_op = ifnet.if_opackets;
1.22 camield 505: ip->ift_ob = ifnet.if_obytes;
1.1 deraadt 506: ip->ift_oe = ifnet.if_oerrors;
507: ip->ift_co = ifnet.if_collisions;
508: ip->ift_dr = ifnet.if_snd.ifq_drops;
509: sum->ift_ip += ip->ift_ip;
1.22 camield 510: sum->ift_ib += ip->ift_ib;
1.1 deraadt 511: sum->ift_ie += ip->ift_ie;
512: sum->ift_op += ip->ift_op;
1.22 camield 513: sum->ift_ob += ip->ift_ob;
1.1 deraadt 514: sum->ift_oe += ip->ift_oe;
515: sum->ift_co += ip->ift_co;
516: sum->ift_dr += ip->ift_dr;
517: off = (u_long)ifnet.if_list.tqe_next;
518: }
519: if (lastif - iftot > 0) {
1.22 camield 520: if (bflag)
521: printf(" %10lu %8.8s %10lu %5.5s",
1.24 ! pvalchev 522: (unsigned long)sum->ift_ib - total->ift_ib, " ",
! 523: (unsigned long)sum->ift_ob - total->ift_ob, " ");
1.22 camield 524: else
525: printf(" %8lu %5lu %8lu %5lu %5lu",
1.24 ! pvalchev 526: (unsigned long)sum->ift_ip - total->ift_ip,
! 527: (unsigned long)sum->ift_ie - total->ift_ie,
! 528: (unsigned long)sum->ift_op - total->ift_op,
! 529: (unsigned long)sum->ift_oe - total->ift_oe,
! 530: (unsigned long)sum->ift_co - total->ift_co);
1.1 deraadt 531: if (dflag)
532: printf(" %5d", sum->ift_dr - total->ift_dr);
533: }
534: *total = *sum;
535: putchar('\n');
536: fflush(stdout);
537: line++;
538: oldmask = sigblock(sigmask(SIGALRM));
539: if (! signalled) {
540: sigpause(0);
541: }
542: sigsetmask(oldmask);
543: signalled = NO;
544: (void)alarm(interval);
545: if (line == 21)
546: goto banner;
547: goto loop;
548: /*NOTREACHED*/
549: }
550:
551: /*
552: * Called if an interval expires before sidewaysintpr has completed a loop.
553: * Sets a flag to not wait for the alarm.
554: */
555: static void
556: catchalarm(signo)
557: int signo;
558: {
559: signalled = YES;
560: }