Annotation of src/usr.bin/netstat/route.c, Revision 1.38
1.38 ! angelos 1: /* $OpenBSD: route.c,v 1.37 2000/05/18 01:32:12 itojun 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
1.38 ! angelos 41: static char *rcsid = "$OpenBSD: route.c,v 1.37 2000/05/18 01:32:12 itojun 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' },
113: { 0 }
114: };
115:
116: static union {
1.6 deraadt 117: struct sockaddr u_sa;
118: u_int32_t u_data[64];
1.29 deraadt 119: int u_dummy; /* force word-alignment */
1.1 deraadt 120: } pt_u;
121:
122: int do_rtent = 0;
123: struct rtentry rtentry;
124: struct radix_node rnode;
125: struct radix_mask rmask;
126:
127: int NewTree = 0;
128:
129: static struct sockaddr *kgetsa __P((struct sockaddr *));
130: static void p_tree __P((struct radix_node *));
131: static void p_rtnode __P(());
132: static void ntreestuff __P(());
133: static void np_rtentry __P((struct rt_msghdr *));
1.21 peter 134: static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int));
1.1 deraadt 135: static void p_flags __P((int, char *));
136: static void p_rtentry __P((struct rtentry *));
1.9 angelos 137: static void encap_print __P((struct rtentry *));
1.1 deraadt 138:
139: /*
140: * Print routing tables.
141: */
142: void
143: routepr(rtree)
144: u_long rtree;
145: {
146: struct radix_node_head *rnh, head;
147: int i;
148:
149: printf("Routing tables\n");
150:
151: if (Aflag == 0 && NewTree)
152: ntreestuff();
153: else {
154: if (rtree == 0) {
155: printf("rt_tables: symbol not in namelist\n");
156: return;
157: }
158:
159: kget(rtree, rt_tables);
160: for (i = 0; i <= AF_MAX; i++) {
161: if ((rnh = rt_tables[i]) == 0)
162: continue;
163: kget(rnh, head);
164: if (i == AF_UNSPEC) {
165: if (Aflag && af == 0) {
166: printf("Netmasks:\n");
167: p_tree(head.rnh_treetop);
168: }
169: } else if (af == AF_UNSPEC || af == i) {
170: pr_family(i);
171: do_rtent = 1;
1.26 angelos 172: if (i != PF_KEY)
1.30 itojun 173: pr_rthdr(i);
1.9 angelos 174: else
1.10 deraadt 175: pr_encaphdr();
1.1 deraadt 176: p_tree(head.rnh_treetop);
177: }
178: }
179: }
180: }
181:
182: /*
183: * Print address family header before a section of the routing table.
184: */
185: void
186: pr_family(af)
187: int af;
188: {
189: char *afname;
190:
191: switch (af) {
192: case AF_INET:
193: afname = "Internet";
194: break;
1.30 itojun 195: #ifdef INET6
196: case AF_INET6:
197: afname = "Internet6";
198: break;
199: #endif
1.1 deraadt 200: case AF_NS:
201: afname = "XNS";
202: break;
1.5 mickey 203: case AF_IPX:
204: afname = "IPX";
205: break;
1.1 deraadt 206: case AF_ISO:
207: afname = "ISO";
208: break;
209: case AF_CCITT:
210: afname = "X.25";
211: break;
1.26 angelos 212: case PF_KEY:
1.10 deraadt 213: afname = "Encap";
1.9 angelos 214: break;
1.18 denny 215: case AF_APPLETALK:
216: afname = "AppleTalk";
217: break;
1.1 deraadt 218: default:
219: afname = NULL;
220: break;
221: }
222: if (afname)
223: printf("\n%s:\n", afname);
224: else
225: printf("\nProtocol Family %d:\n", af);
226: }
227:
228: /* column widths; each followed by one space */
1.30 itojun 229: #ifndef INET6
230: #define WID_DST(af) 18 /* width of destination column */
231: #define WID_GW(af) 18 /* width of gateway column */
232: #else
233: /* width of destination/gateway column */
234: #ifdef KAME_SCOPEID
235: /* strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4 */
236: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 34 : 18) : 18)
237: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
238: #else
239: /* strlen("fe80::aaaa:bbbb:cccc:dddd") == 25, strlen("/128") == 4 */
240: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 29 : 18) : 18)
241: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 25 : 18) : 18)
242: #endif
243: #endif /* INET6 */
1.1 deraadt 244:
245: /*
246: * Print header for routing table columns.
247: */
248: void
1.30 itojun 249: pr_rthdr(af)
250: int af;
1.1 deraadt 251: {
252:
253: if (Aflag)
1.15 millert 254: printf("%-*.*s ", PLEN, PLEN, "Address");
1.20 kstailey 255: printf("%-*.*s %-*.*s %-6.6s %6.6s %6.6s %6.6s %s\n",
1.30 itojun 256: WID_DST(af), WID_DST(af), "Destination",
257: WID_GW(af), WID_GW(af), "Gateway",
1.1 deraadt 258: "Flags", "Refs", "Use", "Mtu", "Interface");
259: }
260:
1.9 angelos 261: /*
1.26 angelos 262: * Print header for PF_KEY entries.
1.9 angelos 263: */
264: void
265: pr_encaphdr()
266: {
1.10 deraadt 267: if (Aflag)
1.15 millert 268: printf("%-*s ", PLEN, "Address");
1.28 ho 269: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
270: "Source", "Port", "Destination",
1.38 ! angelos 271: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.9 angelos 272: }
273:
1.1 deraadt 274: static struct sockaddr *
275: kgetsa(dst)
276: register struct sockaddr *dst;
277: {
278:
279: kget(dst, pt_u.u_sa);
280: if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
281: kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
282: return (&pt_u.u_sa);
283: }
284:
285: static void
286: p_tree(rn)
287: struct radix_node *rn;
288: {
289:
290: again:
291: kget(rn, rnode);
292: if (rnode.rn_b < 0) {
293: if (Aflag)
1.14 millert 294: printf("%-16p ", rn);
1.1 deraadt 295: if (rnode.rn_flags & RNF_ROOT) {
296: if (Aflag)
297: printf("(root node)%s",
298: rnode.rn_dupedkey ? " =>\n" : "\n");
299: } else if (do_rtent) {
300: kget(rn, rtentry);
301: p_rtentry(&rtentry);
302: if (Aflag)
303: p_rtnode();
304: } else {
305: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
1.21 peter 306: 0, 0, 44);
1.1 deraadt 307: putchar('\n');
308: }
1.13 millert 309: if ((rn = rnode.rn_dupedkey))
1.1 deraadt 310: goto again;
311: } else {
312: if (Aflag && do_rtent) {
1.14 millert 313: printf("%-16p ", rn);
1.1 deraadt 314: p_rtnode();
315: }
316: rn = rnode.rn_r;
317: p_tree(rnode.rn_l);
318: p_tree(rn);
319: }
320: }
321:
1.23 deraadt 322: char nbuf[25];
1.1 deraadt 323:
324: static void
325: p_rtnode()
326: {
327: struct radix_mask *rm = rnode.rn_mklist;
328:
329: if (rnode.rn_b < 0) {
330: if (rnode.rn_mask) {
331: printf("\t mask ");
332: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
1.21 peter 333: 0, 0, -1);
1.1 deraadt 334: } else if (rm == 0)
335: return;
336: } else {
1.23 deraadt 337: snprintf(nbuf, sizeof nbuf, "(%d)", rnode.rn_b);
1.14 millert 338: printf("%6.6s %16p : %16p", nbuf, rnode.rn_l,
339: rnode.rn_r);
1.1 deraadt 340: }
341: while (rm) {
342: kget(rm, rmask);
1.23 deraadt 343: snprintf(nbuf, sizeof nbuf, " %d refs, ", rmask.rm_refs);
1.14 millert 344: printf(" mk = %16p {(%d),%s",
1.1 deraadt 345: rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
1.21 peter 346: p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, 0, -1);
1.1 deraadt 347: putchar('}');
1.13 millert 348: if ((rm = rmask.rm_mklist))
1.1 deraadt 349: printf(" ->");
350: }
351: putchar('\n');
352: }
353:
354: static void
355: ntreestuff()
356: {
357: size_t needed;
358: int mib[6];
359: char *buf, *next, *lim;
360: register struct rt_msghdr *rtm;
361:
1.10 deraadt 362: mib[0] = CTL_NET;
363: mib[1] = PF_ROUTE;
364: mib[2] = 0;
365: mib[3] = 0;
366: mib[4] = NET_RT_DUMP;
367: mib[5] = 0;
368: if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
369: perror("route-sysctl-estimate");
370: exit(1);
371: }
372: if ((buf = malloc(needed)) == 0) {
373: printf("out of space\n");
374: exit(1);
375: }
376: if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
377: perror("sysctl of routing table");
378: exit(1);
379: }
380: lim = buf + needed;
1.1 deraadt 381: for (next = buf; next < lim; next += rtm->rtm_msglen) {
382: rtm = (struct rt_msghdr *)next;
383: np_rtentry(rtm);
384: }
385: }
386:
387: static void
388: np_rtentry(rtm)
389: register struct rt_msghdr *rtm;
390: {
391: register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
392: #ifdef notdef
393: static int masks_done, banner_printed;
394: #endif
395: static int old_af;
396: int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
397:
398: #ifdef notdef
399: /* for the moment, netmasks are skipped over */
400: if (!banner_printed) {
401: printf("Netmasks:\n");
402: banner_printed = 1;
403: }
404: if (masks_done == 0) {
405: if (rtm->rtm_addrs != RTA_DST ) {
406: masks_done = 1;
407: af = sa->sa_family;
408: }
409: } else
410: #endif
411: af = sa->sa_family;
412: if (af != old_af) {
413: pr_family(af);
414: old_af = af;
415: }
416: if (rtm->rtm_addrs == RTA_DST)
1.21 peter 417: p_sockaddr(sa, 0, 0, 36);
1.1 deraadt 418: else {
1.21 peter 419: p_sockaddr(sa, 0, rtm->rtm_flags, 16);
1.29 deraadt 420: sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
1.21 peter 421: p_sockaddr(sa, 0, 0, 18);
1.1 deraadt 422: }
423: p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
424: putchar('\n');
425: }
426:
427: static void
1.21 peter 428: p_sockaddr(sa, mask, flags, width)
429: struct sockaddr *sa, *mask;
1.1 deraadt 430: int flags, width;
431: {
432: char workbuf[128], *cplim;
433: register char *cp = workbuf;
1.25 millert 434: size_t n;
1.1 deraadt 435:
1.36 itojun 436: switch (sa->sa_family) {
1.1 deraadt 437: case AF_INET:
438: {
439: register struct sockaddr_in *sin = (struct sockaddr_in *)sa;
1.21 peter 440: register struct sockaddr_in *msin = (struct sockaddr_in *)mask;
1.1 deraadt 441:
442: cp = (sin->sin_addr.s_addr == 0) ? "default" :
443: ((flags & RTF_HOST) ?
444: routename(sin->sin_addr.s_addr) :
1.21 peter 445: netname(sin->sin_addr.s_addr, msin->sin_addr.s_addr));
446:
1.1 deraadt 447: break;
448: }
449:
1.30 itojun 450: #ifdef INET6
451: case AF_INET6:
452: {
453: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
454: #ifdef KAME_SCOPEID
455: struct in6_addr *in6 = &sa6->sin6_addr;
456:
457: /*
458: * XXX: This is a special workaround for KAME kernels.
459: * sin6_scope_id field of SA should be set in the future.
460: */
461: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
462: IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
463: /* XXX: override is ok? */
464: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
465: *(u_short *)&in6->s6_addr[2] = 0;
466: }
467: #endif
468:
469: if (flags & RTF_HOST)
470: cp = routename6(sa6);
471: else if (mask) {
472: cp = netname6(sa6,
473: &((struct sockaddr_in6 *)mask)->sin6_addr);
474: } else
475: cp = netname6(sa6, NULL);
476: break;
477: }
478: #endif
479:
1.1 deraadt 480: case AF_NS:
481: cp = ns_print(sa);
482: break;
483:
1.5 mickey 484: case AF_IPX:
485: cp = ipx_print(sa);
486: break;
1.9 angelos 487:
1.1 deraadt 488: case AF_LINK:
489: {
490: register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
491:
492: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
493: sdl->sdl_slen == 0)
1.23 deraadt 494: (void) snprintf(workbuf, sizeof workbuf,
495: "link#%d", sdl->sdl_index);
1.1 deraadt 496: else switch (sdl->sdl_type) {
497: case IFT_ETHER:
498: {
499: register int i;
500: register u_char *lla = (u_char *)sdl->sdl_data +
501: sdl->sdl_nlen;
502:
503: cplim = "";
504: for (i = 0; i < sdl->sdl_alen; i++, lla++) {
1.25 millert 505: n = snprintf(cp,
1.4 deraadt 506: workbuf + sizeof (workbuf) - cp,
507: "%s%x", cplim, *lla);
1.25 millert 508: if (n >= workbuf + sizeof (workbuf) - cp)
509: n = workbuf + sizeof (workbuf) - cp - 1;
510: cp += n;
1.1 deraadt 511: cplim = ":";
512: }
513: cp = workbuf;
514: break;
515: }
516: default:
517: cp = link_ntoa(sdl);
518: break;
519: }
520: break;
521: }
522:
1.18 denny 523: case AF_APPLETALK:
524: {
525: /* XXX could do better */
526: cp = atalk_print(sa,11);
527: break;
528: }
1.1 deraadt 529: default:
530: {
531: register u_char *s = (u_char *)sa->sa_data, *slim;
532:
1.10 deraadt 533: slim = sa->sa_len + (u_char *) sa;
1.1 deraadt 534: cplim = cp + sizeof(workbuf) - 6;
1.25 millert 535: n = snprintf(cp, cplim - cp, "(%d)", sa->sa_family);
536: if (n >= cplim - cp)
537: n = cplim - cp - 1;
538: cp += n;
1.1 deraadt 539: while (s < slim && cp < cplim) {
1.25 millert 540: n = snprintf(cp, workbuf + sizeof (workbuf) - cp,
1.4 deraadt 541: " %02x", *s++);
1.25 millert 542: if (n >= workbuf + sizeof (workbuf) - cp)
543: n = workbuf + sizeof (workbuf) - cp - 1;
544: cp += n;
545: if (s < slim) {
546: n = snprintf(cp,
1.4 deraadt 547: workbuf + sizeof (workbuf) - cp,
548: "%02x", *s++);
1.25 millert 549: if (n >= workbuf + sizeof (workbuf) - cp)
550: n = workbuf + sizeof (workbuf) - cp - 1;
551: cp += n;
552: }
1.1 deraadt 553: }
554: cp = workbuf;
555: }
556: }
557: if (width < 0 )
558: printf("%s ", cp);
559: else {
560: if (nflag)
561: printf("%-*s ", width, cp);
562: else
563: printf("%-*.*s ", width, width, cp);
564: }
565: }
566:
567: static void
568: p_flags(f, format)
569: register int f;
570: char *format;
571: {
572: char name[33], *flags;
573: register struct bits *p = bits;
574:
575: for (flags = name; p->b_mask; p++)
576: if (p->b_mask & f)
577: *flags++ = p->b_val;
578: *flags = '\0';
579: printf(format, name);
580: }
581:
582: static void
583: p_rtentry(rt)
584: register struct rtentry *rt;
585: {
586: static struct ifnet ifnet, *lastif;
1.30 itojun 587: struct sockaddr_storage sock1, sock2;
588: struct sockaddr *sa = (struct sockaddr *)&sock1;
589: struct sockaddr *mask = (struct sockaddr *)&sock2;
1.9 angelos 590:
1.21 peter 591: bcopy(kgetsa(rt_key(rt)), sa, sizeof(struct sockaddr));
1.30 itojun 592: if (sa->sa_len > sizeof(struct sockaddr))
593: bcopy(kgetsa(rt_key(rt)), sa, sa->sa_len);
1.21 peter 594:
1.26 angelos 595: if (sa->sa_family == PF_KEY) {
1.10 deraadt 596: encap_print(rt);
597: return;
1.9 angelos 598: }
1.21 peter 599:
1.30 itojun 600: if (rt_mask(rt)) {
1.21 peter 601: bcopy(kgetsa(rt_mask(rt)), mask, sizeof(struct sockaddr));
1.30 itojun 602: if (sa->sa_len > sizeof(struct sockaddr))
603: bcopy(kgetsa(rt_mask(rt)), mask, sa->sa_len);
604: } else
1.21 peter 605: mask = 0;
1.9 angelos 606:
1.30 itojun 607: p_sockaddr(sa, mask, rt->rt_flags, WID_DST(sa->sa_family));
608: p_sockaddr(kgetsa(rt->rt_gateway), 0, RTF_HOST, WID_GW(sa->sa_family));
1.1 deraadt 609: p_flags(rt->rt_flags, "%-6.6s ");
1.13 millert 610: printf("%6d %8ld ", rt->rt_refcnt, rt->rt_use);
1.1 deraadt 611: if (rt->rt_rmx.rmx_mtu)
1.13 millert 612: printf("%6ld ", rt->rt_rmx.rmx_mtu);
1.1 deraadt 613: else
614: printf("%6s ", "-");
615: if (rt->rt_ifp) {
616: if (rt->rt_ifp != lastif) {
617: kget(rt->rt_ifp, ifnet);
618: lastif = rt->rt_ifp;
619: }
1.2 deraadt 620: printf(" %.16s%s", ifnet.if_xname,
1.1 deraadt 621: rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
622: }
623: putchar('\n');
624: }
625:
626: char *
627: routename(in)
1.13 millert 628: in_addr_t in;
1.1 deraadt 629: {
630: register char *cp;
1.24 deraadt 631: static char line[MAXHOSTNAMELEN];
1.1 deraadt 632: struct hostent *hp;
1.24 deraadt 633: static char domain[MAXHOSTNAMELEN];
1.1 deraadt 634: static int first = 1;
635:
636: if (first) {
637: first = 0;
1.24 deraadt 638: if (gethostname(domain, sizeof domain) == 0 &&
1.7 millert 639: (cp = strchr(domain, '.')))
1.1 deraadt 640: (void) strcpy(domain, cp + 1);
641: else
642: domain[0] = 0;
643: }
644: cp = 0;
645: if (!nflag) {
646: hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
647: AF_INET);
648: if (hp) {
1.7 millert 649: if ((cp = strchr(hp->h_name, '.')) &&
1.1 deraadt 650: !strcmp(cp + 1, domain))
651: *cp = 0;
652: cp = hp->h_name;
653: }
654: }
1.22 deraadt 655: if (cp) {
1.1 deraadt 656: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 657: line[sizeof(line) - 1] = '\0';
658: } else {
1.1 deraadt 659: #define C(x) ((x) & 0xff)
660: in = ntohl(in);
1.23 deraadt 661: snprintf(line, sizeof line, "%u.%u.%u.%u",
1.1 deraadt 662: C(in >> 24), C(in >> 16), C(in >> 8), C(in));
663: }
664: return (line);
665: }
666:
667: /*
668: * Return the name of the network whose address is given.
669: * The address is assumed to be that of a net or subnet, not a host.
670: */
671: char *
672: netname(in, mask)
1.13 millert 673: in_addr_t in, mask;
1.1 deraadt 674: {
675: char *cp = 0;
1.24 deraadt 676: static char line[MAXHOSTNAMELEN];
1.1 deraadt 677: struct netent *np = 0;
1.21 peter 678: int mbits;
1.1 deraadt 679:
680: in = ntohl(in);
681: mask = ntohl(mask);
682: if (!nflag && in != INADDR_ANY) {
1.30 itojun 683: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
1.1 deraadt 684: cp = np->n_name;
685: }
1.21 peter 686: mbits = mask ? 33 - ffs(mask) : 0;
1.22 deraadt 687: if (cp) {
1.1 deraadt 688: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 689: line[sizeof(line) - 1] = '\0';
1.27 deraadt 690: } else if (mbits < 9)
1.23 deraadt 691: snprintf(line, sizeof line, "%u/%d", C(in >> 24), mbits);
1.27 deraadt 692: else if (mbits < 17)
1.23 deraadt 693: snprintf(line, sizeof line, "%u.%u/%d",
694: C(in >> 24) , C(in >> 16), mbits);
1.27 deraadt 695: else if (mbits < 25)
1.23 deraadt 696: snprintf(line, sizeof line, "%u.%u.%u/%d",
697: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
1.1 deraadt 698: else
1.23 deraadt 699: snprintf(line, sizeof line, "%u.%u.%u.%u/%d", C(in >> 24),
1.21 peter 700: C(in >> 16), C(in >> 8), C(in), mbits);
1.1 deraadt 701: return (line);
702: }
703:
1.30 itojun 704: #ifdef INET6
705: char *
706: netname6(sa6, mask)
707: struct sockaddr_in6 *sa6;
708: struct in6_addr *mask;
709: {
710: static char line[MAXHOSTNAMELEN + 1];
1.35 itojun 711: struct sockaddr_in6 sin6;
1.30 itojun 712: u_char *p;
713: u_char *lim;
714: int masklen, final = 0, illegal = 0;
715: int i;
716: char hbuf[NI_MAXHOST];
717: #ifdef NI_WITHSCOPEID
718: int flag = NI_WITHSCOPEID;
719: #else
720: int flag = 0;
721: #endif
1.37 itojun 722: int error;
1.30 itojun 723:
1.35 itojun 724: sin6 = *sa6;
1.30 itojun 725:
726: masklen = 0;
1.35 itojun 727: lim = (u_char *)(mask + 1);
728: i = 0;
1.36 itojun 729: if (mask) {
730: for (p = (u_char *)mask; p < lim; p++) {
731: if (final && *p) {
732: illegal++;
733: sin6.sin6_addr.s6_addr[i++] = 0x00;
734: continue;
735: }
736:
737: switch (*p & 0xff) {
738: case 0xff:
739: masklen += 8;
740: break;
741: case 0xfe:
742: masklen += 7;
743: final++;
744: break;
745: case 0xfc:
746: masklen += 6;
747: final++;
748: break;
749: case 0xf8:
750: masklen += 5;
751: final++;
752: break;
753: case 0xf0:
754: masklen += 4;
755: final++;
756: break;
757: case 0xe0:
758: masklen += 3;
759: final++;
760: break;
761: case 0xc0:
762: masklen += 2;
763: final++;
764: break;
765: case 0x80:
766: masklen += 1;
767: final++;
768: break;
769: case 0x00:
770: final++;
771: break;
772: default:
773: final++;
774: illegal++;
775: break;
776: }
1.30 itojun 777:
1.36 itojun 778: if (!illegal)
779: sin6.sin6_addr.s6_addr[i++] &= *p;
780: else
781: sin6.sin6_addr.s6_addr[i++] = 0x00;
1.30 itojun 782: }
1.36 itojun 783: } else
784: masklen = 128;
1.30 itojun 785:
1.35 itojun 786: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
1.30 itojun 787: return("default");
788:
789: if (illegal)
790: fprintf(stderr, "illegal prefixlen\n");
791:
792: if (nflag)
793: flag |= NI_NUMERICHOST;
1.37 itojun 794: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
795: hbuf, sizeof(hbuf), NULL, 0, flag);
796: if (error)
797: snprintf(hbuf, sizeof(hbuf), "invalid");
798:
1.30 itojun 799: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
800: return line;
801: }
802:
803: char *
804: routename6(sa6)
805: struct sockaddr_in6 *sa6;
806: {
807: static char line[NI_MAXHOST];
808: #ifdef NI_WITHSCOPEID
809: const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
810: #else
811: const int niflag = NI_NUMERICHOST;
812: #endif
813: if (getnameinfo((struct sockaddr *)sa6, sa6->sin6_len,
814: line, sizeof(line), NULL, 0, niflag) != 0)
815: strcpy(line, "");
816: return line;
817: }
818: #endif /*INET6*/
819:
1.1 deraadt 820: /*
821: * Print routing statistics
822: */
823: void
824: rt_stats(off)
825: u_long off;
826: {
827: struct rtstat rtstat;
828:
829: if (off == 0) {
830: printf("rtstat: symbol not in namelist\n");
831: return;
832: }
833: kread(off, (char *)&rtstat, sizeof (rtstat));
834: printf("routing:\n");
835: printf("\t%u bad routing redirect%s\n",
836: rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
837: printf("\t%u dynamically created route%s\n",
838: rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
839: printf("\t%u new gateway%s due to redirects\n",
840: rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
841: printf("\t%u destination%s found unreachable\n",
842: rtstat.rts_unreach, plural(rtstat.rts_unreach));
843: printf("\t%u use%s of a wildcard route\n",
844: rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
845: }
1.5 mickey 846:
1.1 deraadt 847: short ns_nullh[] = {0,0,0};
848: short ns_bh[] = {-1,-1,-1};
849:
850: char *
851: ns_print(sa)
852: register struct sockaddr *sa;
853: {
854: register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
855: struct ns_addr work;
856: union { union ns_net net_e; u_long long_e; } net;
1.13 millert 857: in_port_t port;
1.1 deraadt 858: static char mybuf[50], cport[10], chost[25];
859: char *host = "";
860: register char *p; register u_char *q;
861:
862: work = sns->sns_addr;
863: port = ntohs(work.x_port);
864: work.x_port = 0;
1.10 deraadt 865: net.net_e = work.x_net;
1.1 deraadt 866: if (ns_nullhost(work) && net.long_e == 0) {
867: if (port ) {
1.23 deraadt 868: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.1 deraadt 869: upHex(mybuf);
870: } else
1.23 deraadt 871: snprintf(mybuf, sizeof mybuf, "*.*");
1.1 deraadt 872: return (mybuf);
873: }
874:
875: if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
876: host = "any";
877: } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
878: host = "*";
879: } else {
880: q = work.x_host.c_host;
1.23 deraadt 881: snprintf(chost, sizeof chost, "%02x%02x%02x%02x%02x%02xH",
1.1 deraadt 882: q[0], q[1], q[2], q[3], q[4], q[5]);
883: for (p = chost; *p == '0' && p < chost + 12; p++)
884: continue;
885: host = p;
886: }
887: if (port)
1.23 deraadt 888: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.1 deraadt 889: else
890: *cport = 0;
891:
1.23 deraadt 892: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
893: host, cport);
1.1 deraadt 894: upHex(mybuf);
895: return(mybuf);
896: }
897:
898: char *
899: ns_phost(sa)
900: struct sockaddr *sa;
901: {
902: register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
903: struct sockaddr_ns work;
904: static union ns_net ns_zeronet;
905: char *p;
906:
907: work = *sns;
908: work.sns_addr.x_port = 0;
909: work.sns_addr.x_net = ns_zeronet;
910:
911: p = ns_print((struct sockaddr *)&work);
1.5 mickey 912: if (strncmp("0H.", p, 3) == 0) p += 3;
913: return(p);
914: }
915:
916: u_short ipx_nullh[] = {0,0,0};
917: u_short ipx_bh[] = {0xffff,0xffff,0xffff};
918:
919: char *
920: ipx_print(sa)
921: register struct sockaddr *sa;
922: {
923: register struct sockaddr_ipx *sipx = (struct sockaddr_ipx*)sa;
924: struct ipx_addr work;
925: union { union ipx_net net_e; u_long long_e; } net;
1.13 millert 926: in_port_t port;
1.5 mickey 927: static char mybuf[50], cport[10], chost[25];
928: char *host = "";
1.13 millert 929: register char *q;
1.5 mickey 930:
931: work = sipx->sipx_addr;
932: port = ntohs(work.ipx_port);
933: work.ipx_port = 0;
1.10 deraadt 934: net.net_e = work.ipx_net;
1.5 mickey 935: if (ipx_nullhost(work) && net.long_e == 0) {
936: if (port != 0) {
1.23 deraadt 937: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.5 mickey 938: upHex(mybuf);
939: } else
1.23 deraadt 940: snprintf(mybuf, sizeof mybuf, "*.*");
1.5 mickey 941: return (mybuf);
942: }
943:
944: if (bcmp(ipx_bh, work.ipx_host.c_host, 6) == 0) {
945: host = "any";
946: } else if (bcmp(ipx_nullh, work.ipx_host.c_host, 6) == 0) {
947: host = "*";
948: } else {
949: q = work.ipx_host.c_host;
1.23 deraadt 950: snprintf(chost, sizeof chost, "%02x:%02x:%02x:%02x:%02x:%02x",
951: q[0], q[1], q[2], q[3], q[4], q[5]);
1.5 mickey 952: host = chost;
953: }
954: if (port)
1.23 deraadt 955: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.5 mickey 956: else
957: *cport = 0;
958:
1.23 deraadt 959: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
960: host, cport);
1.5 mickey 961: upHex(mybuf);
962: return(mybuf);
963: }
964:
965: char *
966: ipx_phost(sa)
967: struct sockaddr *sa;
968: {
969: register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
970: struct sockaddr_ipx work;
971: static union ipx_net ipx_zeronet;
972: char *p;
973:
974: work = *sipx;
975: work.sipx_addr.ipx_port = 0;
976: work.sipx_addr.ipx_net = ipx_zeronet;
977:
978: p = ipx_print((struct sockaddr *)&work);
1.1 deraadt 979: if (strncmp("0H.", p, 3) == 0) p += 3;
980: return(p);
1.9 angelos 981: }
982:
983: static void
984: encap_print(rt)
985: register struct rtentry *rt;
986: {
1.10 deraadt 987: struct sockaddr_encap sen1, sen2, sen3;
1.38 ! angelos 988: struct ipsec_policy ipo;
! 989:
1.31 angelos 990: #ifdef INET6
991: struct sockaddr_in6 s61, s62;
992: char ip6addr[64];
993: #endif /* INET6 */
1.9 angelos 994:
995: bcopy(kgetsa(rt_key(rt)), &sen1, sizeof(sen1));
996: bcopy(kgetsa(rt_mask(rt)), &sen2, sizeof(sen2));
997: bcopy(kgetsa(rt->rt_gateway), &sen3, sizeof(sen3));
998:
1.31 angelos 999: if (sen1.sen_type == SENT_IP4)
1000: {
1001: printf("%-18s %-5u ", netname(sen1.sen_ip_src.s_addr,
1002: sen2.sen_ip_src.s_addr),
1.33 angelos 1003: ntohs(sen1.sen_sport));
1.31 angelos 1004:
1005: printf("%-18s %-5u %-5u ", netname(sen1.sen_ip_dst.s_addr,
1006: sen2.sen_ip_dst.s_addr),
1.33 angelos 1007: ntohs(sen1.sen_dport), sen1.sen_proto);
1.31 angelos 1008: }
1009:
1010: #ifdef INET6
1011: if (sen1.sen_type == SENT_IP6)
1012: {
1013: bzero(&s61, sizeof(s61));
1014: bzero(&s62, sizeof(s62));
1015: s61.sin6_family = s62.sin6_family = AF_INET6;
1016: s61.sin6_len = s62.sin6_len = sizeof(s61);
1017: bcopy(&sen1.sen_ip6_src, &s61.sin6_addr, sizeof(struct in6_addr));
1018: bcopy(&sen2.sen_ip6_src, &s62.sin6_addr, sizeof(struct in6_addr));
1019:
1020: printf("%-42s %-5u ", netname6(&s61, &s62.sin6_addr),
1.33 angelos 1021: ntohs(sen1.sen_ip6_sport));
1.31 angelos 1022:
1023: bzero(&s61, sizeof(s61));
1024: bzero(&s62, sizeof(s62));
1025: s61.sin6_family = s62.sin6_family = AF_INET6;
1026: s61.sin6_len = s62.sin6_len = sizeof(s61);
1027: bcopy(&sen1.sen_ip6_dst, &s61.sin6_addr, sizeof(struct in6_addr));
1028: bcopy(&sen2.sen_ip6_dst, &s62.sin6_addr, sizeof(struct in6_addr));
1029:
1030: printf("%-42s %-5u %-5u ", netname6(&s61, &s62.sin6_addr),
1.33 angelos 1031: ntohs(sen1.sen_ip6_dport), sen1.sen_ip6_proto);
1.31 angelos 1032: }
1033: #endif /* INET6 */
1034:
1035: if (sen3.sen_type == SENT_IPSP)
1.38 ! angelos 1036: {
! 1037: char hostn[NI_MAXHOST];
! 1038:
! 1039: kget(sen3.sen_ipsp, ipo);
1.31 angelos 1040:
1.38 ! angelos 1041: getnameinfo(&ipo.ipo_dst.sa, ipo.ipo_dst.sa.sa_len,
! 1042: hostn, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
! 1043: printf("%s", hostn);
! 1044:
! 1045: printf("/%-u", ipo.ipo_sproto);
! 1046:
! 1047: switch (ipo.ipo_type)
! 1048: {
! 1049: case IPSP_IPSEC_REQUIRE:
! 1050: printf("/require");
! 1051: break;
! 1052:
! 1053: case IPSP_IPSEC_ACQUIRE:
! 1054: printf("/acquire");
! 1055: break;
! 1056:
! 1057: case IPSP_IPSEC_USE:
! 1058: printf("/use");
! 1059: break;
! 1060:
! 1061: case IPSP_IPSEC_DONTACQ:
! 1062: printf("/dontacq");
! 1063: break;
! 1064:
! 1065: case IPSP_PERMIT:
! 1066: printf("/permit");
! 1067: break;
! 1068:
! 1069: case IPSP_DENY:
! 1070: printf("/deny");
! 1071: break;
! 1072:
! 1073: default:
! 1074: printf("/<unknown type!>");
! 1075: }
! 1076:
! 1077: if ((ipo.ipo_addr.sen_type == SENT_IP4 &&
! 1078: ipo.ipo_addr.sen_direction == IPSP_DIRECTION_IN) ||
! 1079: (ipo.ipo_addr.sen_type == SENT_IP6 &&
! 1080: ipo.ipo_addr.sen_ip6_direction == IPSP_DIRECTION_IN))
! 1081: printf("/in\n");
! 1082: else
! 1083: if ((ipo.ipo_addr.sen_type == SENT_IP4 &&
! 1084: ipo.ipo_addr.sen_direction == IPSP_DIRECTION_OUT) ||
! 1085: (ipo.ipo_addr.sen_type == SENT_IP6 &&
! 1086: ipo.ipo_addr.sen_ip6_direction == IPSP_DIRECTION_OUT))
! 1087: printf("/out\n");
! 1088: else
! 1089: printf("/<unknown>\n");
! 1090: }
1.1 deraadt 1091: }
1092:
1093: void
1094: upHex(p0)
1095: char *p0;
1096: {
1097: register char *p = p0;
1098: for (; *p; p++) switch (*p) {
1099:
1100: case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
1101: *p += ('A' - 'a');
1102: }
1103: }
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