Annotation of src/usr.bin/netstat/route.c, Revision 1.45
1.45 ! millert 1: /* $OpenBSD: route.c,v 1.44 2002/01/17 21:34:58 mickey Exp $ */
1.2 deraadt 2: /* $NetBSD: route.c,v 1.15 1996/05/07 02:55:06 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: @(#)route.c 8.3 (Berkeley) 3/9/94";
40: #else
1.45 ! millert 41: static char *rcsid = "$OpenBSD: route.c,v 1.44 2002/01/17 21:34:58 mickey Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
45: #include <sys/param.h>
46: #include <sys/protosw.h>
47: #include <sys/socket.h>
48: #include <sys/mbuf.h>
49:
50: #include <net/if.h>
51: #include <net/if_dl.h>
52: #include <net/if_types.h>
53: #define _KERNEL
54: #include <net/route.h>
55: #undef _KERNEL
56: #include <netinet/in.h>
1.13 millert 57: #include <arpa/inet.h>
1.1 deraadt 58:
59: #include <netns/ns.h>
60:
1.5 mickey 61: #include <netipx/ipx.h>
62:
1.18 denny 63: #include <netatalk/at.h>
64:
1.1 deraadt 65: #include <sys/sysctl.h>
66:
1.30 itojun 67: #include <arpa/inet.h>
68:
1.15 millert 69: #include <limits.h>
1.1 deraadt 70: #include <netdb.h>
71: #include <stdio.h>
72: #include <stdlib.h>
73: #include <string.h>
74: #include <unistd.h>
1.9 angelos 75:
76: #ifndef INET
77: #define INET
78: #endif
79:
1.26 angelos 80: #include <sys/socket.h>
81: #include <netinet/ip_ipsp.h>
1.1 deraadt 82: #include "netstat.h"
83:
84: #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d)))
85:
1.29 deraadt 86: /* alignment constraint for routing socket */
87: #define ROUNDUP(a) \
88: ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
89: #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
90:
1.1 deraadt 91: /*
92: * Definitions for showing gateway flags.
93: */
94: struct bits {
95: short b_mask;
96: char b_val;
97: } bits[] = {
98: { RTF_UP, 'U' },
99: { RTF_GATEWAY, 'G' },
100: { RTF_HOST, 'H' },
101: { RTF_REJECT, 'R' },
1.34 deraadt 102: { RTF_BLACKHOLE, 'B' },
1.1 deraadt 103: { RTF_DYNAMIC, 'D' },
104: { RTF_MODIFIED, 'M' },
105: { RTF_DONE, 'd' }, /* Completed -- for routing messages only */
106: { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */
107: { RTF_CLONING, 'C' },
108: { RTF_XRESOLVE, 'X' },
109: { RTF_LLINFO, 'L' },
110: { RTF_STATIC, 'S' },
111: { RTF_PROTO1, '1' },
112: { RTF_PROTO2, '2' },
1.40 niklas 113: { RTF_PROTO3, '3' },
1.1 deraadt 114: { 0 }
115: };
116:
117: static union {
1.6 deraadt 118: struct sockaddr u_sa;
119: u_int32_t u_data[64];
1.29 deraadt 120: int u_dummy; /* force word-alignment */
1.1 deraadt 121: } pt_u;
122:
123: int do_rtent = 0;
124: struct rtentry rtentry;
125: struct radix_node rnode;
126: struct radix_mask rmask;
127:
128: int NewTree = 0;
129:
1.45 ! millert 130: static struct sockaddr *kgetsa(struct sockaddr *);
! 131: static void p_tree(struct radix_node *);
! 132: static void p_rtnode();
! 133: static void ntreestuff();
! 134: static void np_rtentry(struct rt_msghdr *);
! 135: static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int);
! 136: static void p_flags(int, char *);
! 137: static void p_rtentry(struct rtentry *);
! 138: static void encap_print(struct rtentry *);
1.1 deraadt 139:
140: /*
141: * Print routing tables.
142: */
143: void
144: routepr(rtree)
145: u_long rtree;
146: {
147: struct radix_node_head *rnh, head;
148: int i;
149:
150: printf("Routing tables\n");
151:
152: if (Aflag == 0 && NewTree)
153: ntreestuff();
154: else {
155: if (rtree == 0) {
156: printf("rt_tables: symbol not in namelist\n");
157: return;
158: }
159:
160: kget(rtree, rt_tables);
161: for (i = 0; i <= AF_MAX; i++) {
162: if ((rnh = rt_tables[i]) == 0)
163: continue;
164: kget(rnh, head);
165: if (i == AF_UNSPEC) {
166: if (Aflag && af == 0) {
167: printf("Netmasks:\n");
168: p_tree(head.rnh_treetop);
169: }
170: } else if (af == AF_UNSPEC || af == i) {
171: pr_family(i);
172: do_rtent = 1;
1.26 angelos 173: if (i != PF_KEY)
1.30 itojun 174: pr_rthdr(i);
1.9 angelos 175: else
1.10 deraadt 176: pr_encaphdr();
1.1 deraadt 177: p_tree(head.rnh_treetop);
178: }
179: }
180: }
181: }
182:
183: /*
184: * Print address family header before a section of the routing table.
185: */
186: void
187: pr_family(af)
188: int af;
189: {
190: char *afname;
191:
192: switch (af) {
193: case AF_INET:
194: afname = "Internet";
195: break;
1.30 itojun 196: #ifdef INET6
197: case AF_INET6:
198: afname = "Internet6";
199: break;
1.44 mickey 200: #endif
1.1 deraadt 201: case AF_NS:
202: afname = "XNS";
203: break;
1.5 mickey 204: case AF_IPX:
205: afname = "IPX";
206: break;
1.1 deraadt 207: case AF_ISO:
208: afname = "ISO";
209: break;
210: case AF_CCITT:
211: afname = "X.25";
212: break;
1.26 angelos 213: case PF_KEY:
1.10 deraadt 214: afname = "Encap";
1.9 angelos 215: break;
1.18 denny 216: case AF_APPLETALK:
217: afname = "AppleTalk";
218: break;
1.1 deraadt 219: default:
220: afname = NULL;
221: break;
222: }
223: if (afname)
224: printf("\n%s:\n", afname);
225: else
226: printf("\nProtocol Family %d:\n", af);
227: }
228:
229: /* column widths; each followed by one space */
1.30 itojun 230: #ifndef INET6
231: #define WID_DST(af) 18 /* width of destination column */
232: #define WID_GW(af) 18 /* width of gateway column */
233: #else
234: /* width of destination/gateway column */
235: #ifdef KAME_SCOPEID
236: /* strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4 */
237: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 34 : 18) : 18)
238: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
239: #else
240: /* strlen("fe80::aaaa:bbbb:cccc:dddd") == 25, strlen("/128") == 4 */
241: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 29 : 18) : 18)
242: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 25 : 18) : 18)
243: #endif
244: #endif /* INET6 */
1.1 deraadt 245:
246: /*
247: * Print header for routing table columns.
248: */
249: void
1.30 itojun 250: pr_rthdr(af)
251: int af;
1.1 deraadt 252: {
253:
254: if (Aflag)
1.15 millert 255: printf("%-*.*s ", PLEN, PLEN, "Address");
1.20 kstailey 256: printf("%-*.*s %-*.*s %-6.6s %6.6s %6.6s %6.6s %s\n",
1.30 itojun 257: WID_DST(af), WID_DST(af), "Destination",
258: WID_GW(af), WID_GW(af), "Gateway",
1.1 deraadt 259: "Flags", "Refs", "Use", "Mtu", "Interface");
260: }
261:
1.9 angelos 262: /*
1.26 angelos 263: * Print header for PF_KEY entries.
1.9 angelos 264: */
265: void
266: pr_encaphdr()
267: {
1.10 deraadt 268: if (Aflag)
1.15 millert 269: printf("%-*s ", PLEN, "Address");
1.28 ho 270: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
1.44 mickey 271: "Source", "Port", "Destination",
1.38 angelos 272: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.9 angelos 273: }
274:
1.1 deraadt 275: static struct sockaddr *
276: kgetsa(dst)
1.43 mpech 277: struct sockaddr *dst;
1.1 deraadt 278: {
279:
280: kget(dst, pt_u.u_sa);
281: if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
282: kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
283: return (&pt_u.u_sa);
284: }
285:
286: static void
287: p_tree(rn)
288: struct radix_node *rn;
289: {
290:
291: again:
292: kget(rn, rnode);
293: if (rnode.rn_b < 0) {
294: if (Aflag)
1.14 millert 295: printf("%-16p ", rn);
1.1 deraadt 296: if (rnode.rn_flags & RNF_ROOT) {
297: if (Aflag)
298: printf("(root node)%s",
299: rnode.rn_dupedkey ? " =>\n" : "\n");
300: } else if (do_rtent) {
301: kget(rn, rtentry);
302: p_rtentry(&rtentry);
303: if (Aflag)
304: p_rtnode();
305: } else {
306: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
1.21 peter 307: 0, 0, 44);
1.1 deraadt 308: putchar('\n');
309: }
1.13 millert 310: if ((rn = rnode.rn_dupedkey))
1.1 deraadt 311: goto again;
312: } else {
313: if (Aflag && do_rtent) {
1.14 millert 314: printf("%-16p ", rn);
1.1 deraadt 315: p_rtnode();
316: }
317: rn = rnode.rn_r;
318: p_tree(rnode.rn_l);
319: p_tree(rn);
320: }
321: }
322:
1.23 deraadt 323: char nbuf[25];
1.1 deraadt 324:
325: static void
326: p_rtnode()
327: {
328: struct radix_mask *rm = rnode.rn_mklist;
329:
330: if (rnode.rn_b < 0) {
331: if (rnode.rn_mask) {
332: printf("\t mask ");
333: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
1.21 peter 334: 0, 0, -1);
1.1 deraadt 335: } else if (rm == 0)
336: return;
337: } else {
1.23 deraadt 338: snprintf(nbuf, sizeof nbuf, "(%d)", rnode.rn_b);
1.14 millert 339: printf("%6.6s %16p : %16p", nbuf, rnode.rn_l,
340: rnode.rn_r);
1.1 deraadt 341: }
342: while (rm) {
343: kget(rm, rmask);
1.23 deraadt 344: snprintf(nbuf, sizeof nbuf, " %d refs, ", rmask.rm_refs);
1.14 millert 345: printf(" mk = %16p {(%d),%s",
1.1 deraadt 346: rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
1.21 peter 347: p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, 0, -1);
1.1 deraadt 348: putchar('}');
1.13 millert 349: if ((rm = rmask.rm_mklist))
1.1 deraadt 350: printf(" ->");
351: }
352: putchar('\n');
353: }
354:
355: static void
356: ntreestuff()
357: {
358: size_t needed;
359: int mib[6];
360: char *buf, *next, *lim;
1.43 mpech 361: struct rt_msghdr *rtm;
1.1 deraadt 362:
1.10 deraadt 363: mib[0] = CTL_NET;
364: mib[1] = PF_ROUTE;
365: mib[2] = 0;
366: mib[3] = 0;
367: mib[4] = NET_RT_DUMP;
368: mib[5] = 0;
369: if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
370: perror("route-sysctl-estimate");
371: exit(1);
372: }
373: if ((buf = malloc(needed)) == 0) {
374: printf("out of space\n");
375: exit(1);
376: }
1.44 mickey 377: if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
1.10 deraadt 378: perror("sysctl of routing table");
379: exit(1);
380: }
381: lim = buf + needed;
1.1 deraadt 382: for (next = buf; next < lim; next += rtm->rtm_msglen) {
383: rtm = (struct rt_msghdr *)next;
384: np_rtentry(rtm);
385: }
386: }
387:
388: static void
389: np_rtentry(rtm)
1.43 mpech 390: struct rt_msghdr *rtm;
1.1 deraadt 391: {
1.43 mpech 392: struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
1.1 deraadt 393: #ifdef notdef
394: static int masks_done, banner_printed;
395: #endif
396: static int old_af;
397: int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
398:
399: #ifdef notdef
400: /* for the moment, netmasks are skipped over */
401: if (!banner_printed) {
402: printf("Netmasks:\n");
403: banner_printed = 1;
404: }
405: if (masks_done == 0) {
406: if (rtm->rtm_addrs != RTA_DST ) {
407: masks_done = 1;
408: af = sa->sa_family;
409: }
410: } else
411: #endif
412: af = sa->sa_family;
413: if (af != old_af) {
414: pr_family(af);
415: old_af = af;
416: }
417: if (rtm->rtm_addrs == RTA_DST)
1.21 peter 418: p_sockaddr(sa, 0, 0, 36);
1.1 deraadt 419: else {
1.21 peter 420: p_sockaddr(sa, 0, rtm->rtm_flags, 16);
1.29 deraadt 421: sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
1.21 peter 422: p_sockaddr(sa, 0, 0, 18);
1.1 deraadt 423: }
424: p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
425: putchar('\n');
426: }
427:
428: static void
1.21 peter 429: p_sockaddr(sa, mask, flags, width)
430: struct sockaddr *sa, *mask;
1.1 deraadt 431: int flags, width;
432: {
433: char workbuf[128], *cplim;
1.43 mpech 434: char *cp = workbuf;
1.25 millert 435: size_t n;
1.1 deraadt 436:
1.36 itojun 437: switch (sa->sa_family) {
1.1 deraadt 438: case AF_INET:
439: {
1.43 mpech 440: struct sockaddr_in *sin = (struct sockaddr_in *)sa;
441: struct sockaddr_in *msin = (struct sockaddr_in *)mask;
1.1 deraadt 442:
443: cp = (sin->sin_addr.s_addr == 0) ? "default" :
1.42 brian 444: ((flags & RTF_HOST) || mask == NULL ?
1.1 deraadt 445: routename(sin->sin_addr.s_addr) :
1.21 peter 446: netname(sin->sin_addr.s_addr, msin->sin_addr.s_addr));
447:
1.1 deraadt 448: break;
449: }
450:
1.30 itojun 451: #ifdef INET6
452: case AF_INET6:
453: {
454: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
455: #ifdef KAME_SCOPEID
456: struct in6_addr *in6 = &sa6->sin6_addr;
457:
458: /*
459: * XXX: This is a special workaround for KAME kernels.
460: * sin6_scope_id field of SA should be set in the future.
461: */
462: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
463: IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
464: /* XXX: override is ok? */
465: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
466: *(u_short *)&in6->s6_addr[2] = 0;
467: }
468: #endif
469:
470: if (flags & RTF_HOST)
471: cp = routename6(sa6);
472: else if (mask) {
473: cp = netname6(sa6,
474: &((struct sockaddr_in6 *)mask)->sin6_addr);
475: } else
476: cp = netname6(sa6, NULL);
477: break;
478: }
1.44 mickey 479: #endif
1.30 itojun 480:
1.1 deraadt 481: case AF_NS:
482: cp = ns_print(sa);
483: break;
484:
1.5 mickey 485: case AF_IPX:
486: cp = ipx_print(sa);
487: break;
1.44 mickey 488:
1.1 deraadt 489: case AF_LINK:
490: {
1.43 mpech 491: struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
1.1 deraadt 492:
493: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
494: sdl->sdl_slen == 0)
1.23 deraadt 495: (void) snprintf(workbuf, sizeof workbuf,
496: "link#%d", sdl->sdl_index);
1.1 deraadt 497: else switch (sdl->sdl_type) {
498: case IFT_ETHER:
499: {
1.43 mpech 500: int i;
501: u_char *lla = (u_char *)sdl->sdl_data +
1.1 deraadt 502: sdl->sdl_nlen;
503:
504: cplim = "";
505: for (i = 0; i < sdl->sdl_alen; i++, lla++) {
1.25 millert 506: n = snprintf(cp,
1.4 deraadt 507: workbuf + sizeof (workbuf) - cp,
508: "%s%x", cplim, *lla);
1.41 brian 509: cplim = ":";
510: if (n == -1) /* What else to do ? */
511: continue;
1.25 millert 512: if (n >= workbuf + sizeof (workbuf) - cp)
513: n = workbuf + sizeof (workbuf) - cp - 1;
514: cp += n;
1.1 deraadt 515: }
516: cp = workbuf;
517: break;
518: }
519: default:
520: cp = link_ntoa(sdl);
521: break;
522: }
523: break;
524: }
525:
1.18 denny 526: case AF_APPLETALK:
527: {
528: /* XXX could do better */
529: cp = atalk_print(sa,11);
530: break;
531: }
1.1 deraadt 532: default:
533: {
1.43 mpech 534: u_char *s = (u_char *)sa->sa_data, *slim;
1.1 deraadt 535:
1.10 deraadt 536: slim = sa->sa_len + (u_char *) sa;
1.1 deraadt 537: cplim = cp + sizeof(workbuf) - 6;
1.25 millert 538: n = snprintf(cp, cplim - cp, "(%d)", sa->sa_family);
539: if (n >= cplim - cp)
540: n = cplim - cp - 1;
1.41 brian 541: if (n > 0)
542: cp += n;
1.1 deraadt 543: while (s < slim && cp < cplim) {
1.25 millert 544: n = snprintf(cp, workbuf + sizeof (workbuf) - cp,
1.4 deraadt 545: " %02x", *s++);
1.25 millert 546: if (n >= workbuf + sizeof (workbuf) - cp)
547: n = workbuf + sizeof (workbuf) - cp - 1;
1.41 brian 548: if (n > 0)
549: cp += n;
1.25 millert 550: if (s < slim) {
551: n = snprintf(cp,
1.4 deraadt 552: workbuf + sizeof (workbuf) - cp,
553: "%02x", *s++);
1.25 millert 554: if (n >= workbuf + sizeof (workbuf) - cp)
555: n = workbuf + sizeof (workbuf) - cp - 1;
1.41 brian 556: if (n > 0)
557: cp += n;
1.25 millert 558: }
1.1 deraadt 559: }
560: cp = workbuf;
561: }
562: }
563: if (width < 0 )
564: printf("%s ", cp);
565: else {
566: if (nflag)
567: printf("%-*s ", width, cp);
568: else
569: printf("%-*.*s ", width, width, cp);
570: }
571: }
572:
573: static void
574: p_flags(f, format)
1.43 mpech 575: int f;
1.1 deraadt 576: char *format;
577: {
578: char name[33], *flags;
1.43 mpech 579: struct bits *p = bits;
1.1 deraadt 580:
581: for (flags = name; p->b_mask; p++)
582: if (p->b_mask & f)
583: *flags++ = p->b_val;
584: *flags = '\0';
585: printf(format, name);
586: }
587:
588: static void
589: p_rtentry(rt)
1.43 mpech 590: struct rtentry *rt;
1.1 deraadt 591: {
592: static struct ifnet ifnet, *lastif;
1.30 itojun 593: struct sockaddr_storage sock1, sock2;
594: struct sockaddr *sa = (struct sockaddr *)&sock1;
595: struct sockaddr *mask = (struct sockaddr *)&sock2;
1.9 angelos 596:
1.21 peter 597: bcopy(kgetsa(rt_key(rt)), sa, sizeof(struct sockaddr));
1.30 itojun 598: if (sa->sa_len > sizeof(struct sockaddr))
599: bcopy(kgetsa(rt_key(rt)), sa, sa->sa_len);
1.21 peter 600:
1.26 angelos 601: if (sa->sa_family == PF_KEY) {
1.10 deraadt 602: encap_print(rt);
603: return;
1.9 angelos 604: }
1.21 peter 605:
1.30 itojun 606: if (rt_mask(rt)) {
1.21 peter 607: bcopy(kgetsa(rt_mask(rt)), mask, sizeof(struct sockaddr));
1.30 itojun 608: if (sa->sa_len > sizeof(struct sockaddr))
609: bcopy(kgetsa(rt_mask(rt)), mask, sa->sa_len);
610: } else
1.21 peter 611: mask = 0;
1.9 angelos 612:
1.30 itojun 613: p_sockaddr(sa, mask, rt->rt_flags, WID_DST(sa->sa_family));
614: p_sockaddr(kgetsa(rt->rt_gateway), 0, RTF_HOST, WID_GW(sa->sa_family));
1.1 deraadt 615: p_flags(rt->rt_flags, "%-6.6s ");
1.13 millert 616: printf("%6d %8ld ", rt->rt_refcnt, rt->rt_use);
1.1 deraadt 617: if (rt->rt_rmx.rmx_mtu)
1.13 millert 618: printf("%6ld ", rt->rt_rmx.rmx_mtu);
1.1 deraadt 619: else
620: printf("%6s ", "-");
1.39 provos 621: putchar((rt->rt_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
1.1 deraadt 622: if (rt->rt_ifp) {
623: if (rt->rt_ifp != lastif) {
624: kget(rt->rt_ifp, ifnet);
625: lastif = rt->rt_ifp;
626: }
1.2 deraadt 627: printf(" %.16s%s", ifnet.if_xname,
1.1 deraadt 628: rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
629: }
630: putchar('\n');
1.44 mickey 631: if (vflag) {
632: printf("\texpire %10lu%c recvpipe %10ld%c "
1.39 provos 633: "sendpipe %10ld%c\n",
1.44 mickey 634: rt->rt_rmx.rmx_expire,
635: (rt->rt_rmx.rmx_locks & RTV_EXPIRE) ? 'L' : ' ',
636: rt->rt_rmx.rmx_recvpipe,
637: (rt->rt_rmx.rmx_locks & RTV_RPIPE) ? 'L' : ' ',
638: rt->rt_rmx.rmx_sendpipe,
639: (rt->rt_rmx.rmx_locks & RTV_SPIPE) ? 'L' : ' ');
640: printf("\tssthresh %10lu%c rtt %10ld%c "
1.39 provos 641: "rttvar %10ld%c\n",
1.44 mickey 642: rt->rt_rmx.rmx_ssthresh,
643: (rt->rt_rmx.rmx_locks & RTV_SSTHRESH) ? 'L' : ' ',
644: rt->rt_rmx.rmx_rtt,
645: (rt->rt_rmx.rmx_locks & RTV_RTT) ? 'L' : ' ',
646: rt->rt_rmx.rmx_rttvar,
1.39 provos 647: (rt->rt_rmx.rmx_locks & RTV_RTTVAR) ? 'L' : ' ');
1.44 mickey 648: }
1.1 deraadt 649: }
650:
651: char *
652: routename(in)
1.13 millert 653: in_addr_t in;
1.1 deraadt 654: {
1.43 mpech 655: char *cp;
1.24 deraadt 656: static char line[MAXHOSTNAMELEN];
1.1 deraadt 657: struct hostent *hp;
1.24 deraadt 658: static char domain[MAXHOSTNAMELEN];
1.1 deraadt 659: static int first = 1;
660:
661: if (first) {
662: first = 0;
1.24 deraadt 663: if (gethostname(domain, sizeof domain) == 0 &&
1.7 millert 664: (cp = strchr(domain, '.')))
1.1 deraadt 665: (void) strcpy(domain, cp + 1);
666: else
667: domain[0] = 0;
668: }
669: cp = 0;
670: if (!nflag) {
671: hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
672: AF_INET);
673: if (hp) {
1.7 millert 674: if ((cp = strchr(hp->h_name, '.')) &&
1.1 deraadt 675: !strcmp(cp + 1, domain))
676: *cp = 0;
677: cp = hp->h_name;
678: }
679: }
1.22 deraadt 680: if (cp) {
1.1 deraadt 681: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 682: line[sizeof(line) - 1] = '\0';
683: } else {
1.1 deraadt 684: #define C(x) ((x) & 0xff)
685: in = ntohl(in);
1.23 deraadt 686: snprintf(line, sizeof line, "%u.%u.%u.%u",
1.1 deraadt 687: C(in >> 24), C(in >> 16), C(in >> 8), C(in));
688: }
689: return (line);
690: }
691:
692: /*
693: * Return the name of the network whose address is given.
694: * The address is assumed to be that of a net or subnet, not a host.
695: */
696: char *
697: netname(in, mask)
1.13 millert 698: in_addr_t in, mask;
1.1 deraadt 699: {
700: char *cp = 0;
1.24 deraadt 701: static char line[MAXHOSTNAMELEN];
1.1 deraadt 702: struct netent *np = 0;
1.21 peter 703: int mbits;
1.1 deraadt 704:
705: in = ntohl(in);
706: mask = ntohl(mask);
707: if (!nflag && in != INADDR_ANY) {
1.30 itojun 708: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
1.1 deraadt 709: cp = np->n_name;
710: }
1.21 peter 711: mbits = mask ? 33 - ffs(mask) : 0;
1.22 deraadt 712: if (cp) {
1.1 deraadt 713: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 714: line[sizeof(line) - 1] = '\0';
1.27 deraadt 715: } else if (mbits < 9)
1.23 deraadt 716: snprintf(line, sizeof line, "%u/%d", C(in >> 24), mbits);
1.27 deraadt 717: else if (mbits < 17)
1.23 deraadt 718: snprintf(line, sizeof line, "%u.%u/%d",
719: C(in >> 24) , C(in >> 16), mbits);
1.27 deraadt 720: else if (mbits < 25)
1.23 deraadt 721: snprintf(line, sizeof line, "%u.%u.%u/%d",
722: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
1.1 deraadt 723: else
1.23 deraadt 724: snprintf(line, sizeof line, "%u.%u.%u.%u/%d", C(in >> 24),
1.21 peter 725: C(in >> 16), C(in >> 8), C(in), mbits);
1.1 deraadt 726: return (line);
727: }
728:
1.30 itojun 729: #ifdef INET6
730: char *
731: netname6(sa6, mask)
732: struct sockaddr_in6 *sa6;
733: struct in6_addr *mask;
734: {
735: static char line[MAXHOSTNAMELEN + 1];
1.35 itojun 736: struct sockaddr_in6 sin6;
1.30 itojun 737: u_char *p;
738: u_char *lim;
739: int masklen, final = 0, illegal = 0;
740: int i;
741: char hbuf[NI_MAXHOST];
742: #ifdef NI_WITHSCOPEID
743: int flag = NI_WITHSCOPEID;
744: #else
745: int flag = 0;
746: #endif
1.37 itojun 747: int error;
1.30 itojun 748:
1.35 itojun 749: sin6 = *sa6;
1.30 itojun 750:
751: masklen = 0;
1.35 itojun 752: lim = (u_char *)(mask + 1);
753: i = 0;
1.36 itojun 754: if (mask) {
755: for (p = (u_char *)mask; p < lim; p++) {
756: if (final && *p) {
757: illegal++;
758: sin6.sin6_addr.s6_addr[i++] = 0x00;
759: continue;
760: }
761:
762: switch (*p & 0xff) {
763: case 0xff:
764: masklen += 8;
765: break;
766: case 0xfe:
767: masklen += 7;
768: final++;
769: break;
770: case 0xfc:
771: masklen += 6;
772: final++;
773: break;
774: case 0xf8:
775: masklen += 5;
776: final++;
777: break;
778: case 0xf0:
779: masklen += 4;
780: final++;
781: break;
782: case 0xe0:
783: masklen += 3;
784: final++;
785: break;
786: case 0xc0:
787: masklen += 2;
788: final++;
789: break;
790: case 0x80:
791: masklen += 1;
792: final++;
793: break;
794: case 0x00:
795: final++;
796: break;
797: default:
798: final++;
799: illegal++;
800: break;
801: }
1.30 itojun 802:
1.36 itojun 803: if (!illegal)
804: sin6.sin6_addr.s6_addr[i++] &= *p;
805: else
806: sin6.sin6_addr.s6_addr[i++] = 0x00;
1.30 itojun 807: }
1.36 itojun 808: } else
809: masklen = 128;
1.30 itojun 810:
1.35 itojun 811: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
1.30 itojun 812: return("default");
813:
814: if (illegal)
815: fprintf(stderr, "illegal prefixlen\n");
816:
817: if (nflag)
818: flag |= NI_NUMERICHOST;
1.37 itojun 819: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
820: hbuf, sizeof(hbuf), NULL, 0, flag);
821: if (error)
822: snprintf(hbuf, sizeof(hbuf), "invalid");
823:
1.30 itojun 824: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
825: return line;
826: }
827:
828: char *
829: routename6(sa6)
830: struct sockaddr_in6 *sa6;
831: {
832: static char line[NI_MAXHOST];
833: #ifdef NI_WITHSCOPEID
834: const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
835: #else
836: const int niflag = NI_NUMERICHOST;
837: #endif
838: if (getnameinfo((struct sockaddr *)sa6, sa6->sin6_len,
839: line, sizeof(line), NULL, 0, niflag) != 0)
840: strcpy(line, "");
841: return line;
842: }
843: #endif /*INET6*/
844:
1.1 deraadt 845: /*
846: * Print routing statistics
847: */
848: void
849: rt_stats(off)
850: u_long off;
851: {
852: struct rtstat rtstat;
853:
854: if (off == 0) {
855: printf("rtstat: symbol not in namelist\n");
856: return;
857: }
858: kread(off, (char *)&rtstat, sizeof (rtstat));
859: printf("routing:\n");
860: printf("\t%u bad routing redirect%s\n",
861: rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
862: printf("\t%u dynamically created route%s\n",
863: rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
864: printf("\t%u new gateway%s due to redirects\n",
865: rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
866: printf("\t%u destination%s found unreachable\n",
867: rtstat.rts_unreach, plural(rtstat.rts_unreach));
868: printf("\t%u use%s of a wildcard route\n",
869: rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
870: }
1.5 mickey 871:
1.1 deraadt 872: short ns_nullh[] = {0,0,0};
873: short ns_bh[] = {-1,-1,-1};
874:
875: char *
876: ns_print(sa)
1.43 mpech 877: struct sockaddr *sa;
1.1 deraadt 878: {
1.43 mpech 879: struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
1.1 deraadt 880: struct ns_addr work;
881: union { union ns_net net_e; u_long long_e; } net;
1.13 millert 882: in_port_t port;
1.1 deraadt 883: static char mybuf[50], cport[10], chost[25];
884: char *host = "";
1.43 mpech 885: char *p;
886: u_char *q;
1.1 deraadt 887:
888: work = sns->sns_addr;
889: port = ntohs(work.x_port);
890: work.x_port = 0;
1.10 deraadt 891: net.net_e = work.x_net;
1.1 deraadt 892: if (ns_nullhost(work) && net.long_e == 0) {
893: if (port ) {
1.23 deraadt 894: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.1 deraadt 895: upHex(mybuf);
896: } else
1.23 deraadt 897: snprintf(mybuf, sizeof mybuf, "*.*");
1.1 deraadt 898: return (mybuf);
899: }
900:
901: if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
902: host = "any";
903: } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
904: host = "*";
905: } else {
906: q = work.x_host.c_host;
1.23 deraadt 907: snprintf(chost, sizeof chost, "%02x%02x%02x%02x%02x%02xH",
1.1 deraadt 908: q[0], q[1], q[2], q[3], q[4], q[5]);
909: for (p = chost; *p == '0' && p < chost + 12; p++)
910: continue;
911: host = p;
912: }
913: if (port)
1.23 deraadt 914: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.1 deraadt 915: else
916: *cport = 0;
917:
1.23 deraadt 918: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
919: host, cport);
1.1 deraadt 920: upHex(mybuf);
921: return(mybuf);
922: }
923:
924: char *
925: ns_phost(sa)
926: struct sockaddr *sa;
927: {
1.43 mpech 928: struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
1.1 deraadt 929: struct sockaddr_ns work;
930: static union ns_net ns_zeronet;
931: char *p;
932:
933: work = *sns;
934: work.sns_addr.x_port = 0;
935: work.sns_addr.x_net = ns_zeronet;
936:
937: p = ns_print((struct sockaddr *)&work);
1.5 mickey 938: if (strncmp("0H.", p, 3) == 0) p += 3;
939: return(p);
940: }
941:
942: u_short ipx_nullh[] = {0,0,0};
943: u_short ipx_bh[] = {0xffff,0xffff,0xffff};
944:
945: char *
946: ipx_print(sa)
1.43 mpech 947: struct sockaddr *sa;
1.5 mickey 948: {
1.43 mpech 949: struct sockaddr_ipx *sipx = (struct sockaddr_ipx*)sa;
1.5 mickey 950: struct ipx_addr work;
951: union { union ipx_net net_e; u_long long_e; } net;
1.13 millert 952: in_port_t port;
1.5 mickey 953: static char mybuf[50], cport[10], chost[25];
954: char *host = "";
1.43 mpech 955: char *q;
1.5 mickey 956:
957: work = sipx->sipx_addr;
958: port = ntohs(work.ipx_port);
959: work.ipx_port = 0;
1.10 deraadt 960: net.net_e = work.ipx_net;
1.5 mickey 961: if (ipx_nullhost(work) && net.long_e == 0) {
962: if (port != 0) {
1.23 deraadt 963: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.5 mickey 964: upHex(mybuf);
965: } else
1.23 deraadt 966: snprintf(mybuf, sizeof mybuf, "*.*");
1.5 mickey 967: return (mybuf);
968: }
969:
970: if (bcmp(ipx_bh, work.ipx_host.c_host, 6) == 0) {
971: host = "any";
972: } else if (bcmp(ipx_nullh, work.ipx_host.c_host, 6) == 0) {
973: host = "*";
974: } else {
975: q = work.ipx_host.c_host;
1.23 deraadt 976: snprintf(chost, sizeof chost, "%02x:%02x:%02x:%02x:%02x:%02x",
977: q[0], q[1], q[2], q[3], q[4], q[5]);
1.5 mickey 978: host = chost;
979: }
980: if (port)
1.23 deraadt 981: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.5 mickey 982: else
983: *cport = 0;
984:
1.23 deraadt 985: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
986: host, cport);
1.5 mickey 987: upHex(mybuf);
988: return(mybuf);
989: }
990:
991: char *
992: ipx_phost(sa)
993: struct sockaddr *sa;
994: {
1.43 mpech 995: struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
1.5 mickey 996: struct sockaddr_ipx work;
997: static union ipx_net ipx_zeronet;
998: char *p;
999:
1000: work = *sipx;
1001: work.sipx_addr.ipx_port = 0;
1002: work.sipx_addr.ipx_net = ipx_zeronet;
1003:
1004: p = ipx_print((struct sockaddr *)&work);
1.1 deraadt 1005: if (strncmp("0H.", p, 3) == 0) p += 3;
1006: return(p);
1.9 angelos 1007: }
1008:
1009: static void
1010: encap_print(rt)
1.43 mpech 1011: struct rtentry *rt;
1.9 angelos 1012: {
1.10 deraadt 1013: struct sockaddr_encap sen1, sen2, sen3;
1.44 mickey 1014: struct ipsec_policy ipo;
1.38 angelos 1015:
1.31 angelos 1016: #ifdef INET6
1017: struct sockaddr_in6 s61, s62;
1018: char ip6addr[64];
1019: #endif /* INET6 */
1.9 angelos 1020:
1021: bcopy(kgetsa(rt_key(rt)), &sen1, sizeof(sen1));
1022: bcopy(kgetsa(rt_mask(rt)), &sen2, sizeof(sen2));
1023: bcopy(kgetsa(rt->rt_gateway), &sen3, sizeof(sen3));
1024:
1.44 mickey 1025: if (sen1.sen_type == SENT_IP4)
1.31 angelos 1026: {
1.44 mickey 1027: printf("%-18s %-5u ", netname(sen1.sen_ip_src.s_addr,
1028: sen2.sen_ip_src.s_addr),
1029: ntohs(sen1.sen_sport));
1.31 angelos 1030:
1.44 mickey 1031: printf("%-18s %-5u %-5u ", netname(sen1.sen_ip_dst.s_addr,
1.31 angelos 1032: sen2.sen_ip_dst.s_addr),
1.44 mickey 1033: ntohs(sen1.sen_dport), sen1.sen_proto);
1.31 angelos 1034: }
1035:
1036: #ifdef INET6
1037: if (sen1.sen_type == SENT_IP6)
1038: {
1039: bzero(&s61, sizeof(s61));
1040: bzero(&s62, sizeof(s62));
1041: s61.sin6_family = s62.sin6_family = AF_INET6;
1042: s61.sin6_len = s62.sin6_len = sizeof(s61);
1043: bcopy(&sen1.sen_ip6_src, &s61.sin6_addr, sizeof(struct in6_addr));
1044: bcopy(&sen2.sen_ip6_src, &s62.sin6_addr, sizeof(struct in6_addr));
1045:
1046: printf("%-42s %-5u ", netname6(&s61, &s62.sin6_addr),
1.33 angelos 1047: ntohs(sen1.sen_ip6_sport));
1.31 angelos 1048:
1049: bzero(&s61, sizeof(s61));
1050: bzero(&s62, sizeof(s62));
1051: s61.sin6_family = s62.sin6_family = AF_INET6;
1052: s61.sin6_len = s62.sin6_len = sizeof(s61);
1053: bcopy(&sen1.sen_ip6_dst, &s61.sin6_addr, sizeof(struct in6_addr));
1054: bcopy(&sen2.sen_ip6_dst, &s62.sin6_addr, sizeof(struct in6_addr));
1055:
1056: printf("%-42s %-5u %-5u ", netname6(&s61, &s62.sin6_addr),
1.44 mickey 1057: ntohs(sen1.sen_ip6_dport), sen1.sen_ip6_proto);
1.31 angelos 1058: }
1059: #endif /* INET6 */
1060:
1061: if (sen3.sen_type == SENT_IPSP)
1.44 mickey 1062: {
1063: char hostn[NI_MAXHOST];
1.38 angelos 1064:
1065: kget(sen3.sen_ipsp, ipo);
1.31 angelos 1066:
1.44 mickey 1067: getnameinfo(&ipo.ipo_dst.sa, ipo.ipo_dst.sa.sa_len,
1068: hostn, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
1.38 angelos 1069: printf("%s", hostn);
1070:
1.44 mickey 1071: printf("/%-u", ipo.ipo_sproto);
1072:
1073: switch (ipo.ipo_type)
1074: {
1075: case IPSP_IPSEC_REQUIRE:
1076: printf("/require");
1077: break;
1078:
1079: case IPSP_IPSEC_ACQUIRE:
1080: printf("/acquire");
1081: break;
1082:
1083: case IPSP_IPSEC_USE:
1084: printf("/use");
1085: break;
1086:
1087: case IPSP_IPSEC_DONTACQ:
1088: printf("/dontacq");
1089: break;
1090:
1091: case IPSP_PERMIT:
1092: printf("/permit");
1093: break;
1094:
1095: case IPSP_DENY:
1096: printf("/deny");
1097: break;
1.38 angelos 1098:
1.44 mickey 1099: default:
1100: printf("/<unknown type!>");
1101: }
1102:
1103: if ((ipo.ipo_addr.sen_type == SENT_IP4 &&
1104: ipo.ipo_addr.sen_direction == IPSP_DIRECTION_IN) ||
1105: (ipo.ipo_addr.sen_type == SENT_IP6 &&
1106: ipo.ipo_addr.sen_ip6_direction == IPSP_DIRECTION_IN))
1107: printf("/in\n");
1108: else
1109: if ((ipo.ipo_addr.sen_type == SENT_IP4 &&
1110: ipo.ipo_addr.sen_direction == IPSP_DIRECTION_OUT) ||
1111: (ipo.ipo_addr.sen_type == SENT_IP6 &&
1112: ipo.ipo_addr.sen_ip6_direction == IPSP_DIRECTION_OUT))
1113: printf("/out\n");
1114: else
1115: printf("/<unknown>\n");
1116: }
1.1 deraadt 1117: }
1118:
1119: void
1120: upHex(p0)
1121: char *p0;
1122: {
1.43 mpech 1123: char *p = p0;
1.1 deraadt 1124: for (; *p; p++) switch (*p) {
1125:
1126: case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
1127: *p += ('A' - 'a');
1128: }
1129: }
![[BACK]](/icons/back.gif){kind=icon}
Return to route.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / netstat