Annotation of src/usr.bin/netstat/route.c, Revision 1.30
1.30 ! itojun 1: /* $OpenBSD: route.c,v 1.29 1999/09/22 05:10:04 deraadt 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
1.30 ! itojun 41: static char *rcsid = "$OpenBSD: route.c,v 1.29 1999/09/22 05:10:04 deraadt 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' },
102: { RTF_DYNAMIC, 'D' },
103: { RTF_MODIFIED, 'M' },
104: { RTF_DONE, 'd' }, /* Completed -- for routing messages only */
105: { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */
106: { RTF_CLONING, 'C' },
107: { RTF_XRESOLVE, 'X' },
108: { RTF_LLINFO, 'L' },
109: { RTF_STATIC, 'S' },
110: { RTF_PROTO1, '1' },
111: { RTF_PROTO2, '2' },
112: { 0 }
113: };
114:
115: static union {
1.6 deraadt 116: struct sockaddr u_sa;
117: u_int32_t u_data[64];
1.29 deraadt 118: int u_dummy; /* force word-alignment */
1.1 deraadt 119: } pt_u;
120:
121: int do_rtent = 0;
122: struct rtentry rtentry;
123: struct radix_node rnode;
124: struct radix_mask rmask;
125:
126: int NewTree = 0;
127:
128: static struct sockaddr *kgetsa __P((struct sockaddr *));
129: static void p_tree __P((struct radix_node *));
130: static void p_rtnode __P(());
131: static void ntreestuff __P(());
132: static void np_rtentry __P((struct rt_msghdr *));
1.21 peter 133: static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int));
1.1 deraadt 134: static void p_flags __P((int, char *));
135: static void p_rtentry __P((struct rtentry *));
1.9 angelos 136: static void encap_print __P((struct rtentry *));
1.1 deraadt 137:
138: /*
139: * Print routing tables.
140: */
141: void
142: routepr(rtree)
143: u_long rtree;
144: {
145: struct radix_node_head *rnh, head;
146: int i;
147:
148: printf("Routing tables\n");
149:
150: if (Aflag == 0 && NewTree)
151: ntreestuff();
152: else {
153: if (rtree == 0) {
154: printf("rt_tables: symbol not in namelist\n");
155: return;
156: }
157:
158: kget(rtree, rt_tables);
159: for (i = 0; i <= AF_MAX; i++) {
160: if ((rnh = rt_tables[i]) == 0)
161: continue;
162: kget(rnh, head);
163: if (i == AF_UNSPEC) {
164: if (Aflag && af == 0) {
165: printf("Netmasks:\n");
166: p_tree(head.rnh_treetop);
167: }
168: } else if (af == AF_UNSPEC || af == i) {
169: pr_family(i);
170: do_rtent = 1;
1.26 angelos 171: if (i != PF_KEY)
1.30 ! itojun 172: pr_rthdr(i);
1.9 angelos 173: else
1.10 deraadt 174: pr_encaphdr();
1.1 deraadt 175: p_tree(head.rnh_treetop);
176: }
177: }
178: }
179: }
180:
181: /*
182: * Print address family header before a section of the routing table.
183: */
184: void
185: pr_family(af)
186: int af;
187: {
188: char *afname;
189:
190: switch (af) {
191: case AF_INET:
192: afname = "Internet";
193: break;
1.30 ! itojun 194: #ifdef INET6
! 195: case AF_INET6:
! 196: afname = "Internet6";
! 197: break;
! 198: #endif
1.1 deraadt 199: case AF_NS:
200: afname = "XNS";
201: break;
1.5 mickey 202: case AF_IPX:
203: afname = "IPX";
204: break;
1.1 deraadt 205: case AF_ISO:
206: afname = "ISO";
207: break;
208: case AF_CCITT:
209: afname = "X.25";
210: break;
1.26 angelos 211: case PF_KEY:
1.10 deraadt 212: afname = "Encap";
1.9 angelos 213: break;
1.18 denny 214: case AF_APPLETALK:
215: afname = "AppleTalk";
216: break;
1.1 deraadt 217: default:
218: afname = NULL;
219: break;
220: }
221: if (afname)
222: printf("\n%s:\n", afname);
223: else
224: printf("\nProtocol Family %d:\n", af);
225: }
226:
227: /* column widths; each followed by one space */
1.30 ! itojun 228: #ifndef INET6
! 229: #define WID_DST(af) 18 /* width of destination column */
! 230: #define WID_GW(af) 18 /* width of gateway column */
! 231: #else
! 232: /* width of destination/gateway column */
! 233: #ifdef KAME_SCOPEID
! 234: /* strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4 */
! 235: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 34 : 18) : 18)
! 236: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
! 237: #else
! 238: /* strlen("fe80::aaaa:bbbb:cccc:dddd") == 25, strlen("/128") == 4 */
! 239: #define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 29 : 18) : 18)
! 240: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 25 : 18) : 18)
! 241: #endif
! 242: #endif /* INET6 */
1.1 deraadt 243:
244: /*
245: * Print header for routing table columns.
246: */
247: void
1.30 ! itojun 248: pr_rthdr(af)
! 249: int af;
1.1 deraadt 250: {
251:
252: if (Aflag)
1.15 millert 253: printf("%-*.*s ", PLEN, PLEN, "Address");
1.20 kstailey 254: printf("%-*.*s %-*.*s %-6.6s %6.6s %6.6s %6.6s %s\n",
1.30 ! itojun 255: WID_DST(af), WID_DST(af), "Destination",
! 256: WID_GW(af), WID_GW(af), "Gateway",
1.1 deraadt 257: "Flags", "Refs", "Use", "Mtu", "Interface");
258: }
259:
1.9 angelos 260: /*
1.26 angelos 261: * Print header for PF_KEY entries.
1.9 angelos 262: */
263: void
264: pr_encaphdr()
265: {
1.10 deraadt 266: if (Aflag)
1.15 millert 267: printf("%-*s ", PLEN, "Address");
1.28 ho 268: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
269: "Source", "Port", "Destination",
1.16 angelos 270: "Port", "Proto", "SA(Address/SPI/Proto)");
1.9 angelos 271: }
272:
1.1 deraadt 273: static struct sockaddr *
274: kgetsa(dst)
275: register struct sockaddr *dst;
276: {
277:
278: kget(dst, pt_u.u_sa);
279: if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
280: kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
281: return (&pt_u.u_sa);
282: }
283:
284: static void
285: p_tree(rn)
286: struct radix_node *rn;
287: {
288:
289: again:
290: kget(rn, rnode);
291: if (rnode.rn_b < 0) {
292: if (Aflag)
1.14 millert 293: printf("%-16p ", rn);
1.1 deraadt 294: if (rnode.rn_flags & RNF_ROOT) {
295: if (Aflag)
296: printf("(root node)%s",
297: rnode.rn_dupedkey ? " =>\n" : "\n");
298: } else if (do_rtent) {
299: kget(rn, rtentry);
300: p_rtentry(&rtentry);
301: if (Aflag)
302: p_rtnode();
303: } else {
304: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
1.21 peter 305: 0, 0, 44);
1.1 deraadt 306: putchar('\n');
307: }
1.13 millert 308: if ((rn = rnode.rn_dupedkey))
1.1 deraadt 309: goto again;
310: } else {
311: if (Aflag && do_rtent) {
1.14 millert 312: printf("%-16p ", rn);
1.1 deraadt 313: p_rtnode();
314: }
315: rn = rnode.rn_r;
316: p_tree(rnode.rn_l);
317: p_tree(rn);
318: }
319: }
320:
1.23 deraadt 321: char nbuf[25];
1.1 deraadt 322:
323: static void
324: p_rtnode()
325: {
326: struct radix_mask *rm = rnode.rn_mklist;
327:
328: if (rnode.rn_b < 0) {
329: if (rnode.rn_mask) {
330: printf("\t mask ");
331: p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
1.21 peter 332: 0, 0, -1);
1.1 deraadt 333: } else if (rm == 0)
334: return;
335: } else {
1.23 deraadt 336: snprintf(nbuf, sizeof nbuf, "(%d)", rnode.rn_b);
1.14 millert 337: printf("%6.6s %16p : %16p", nbuf, rnode.rn_l,
338: rnode.rn_r);
1.1 deraadt 339: }
340: while (rm) {
341: kget(rm, rmask);
1.23 deraadt 342: snprintf(nbuf, sizeof nbuf, " %d refs, ", rmask.rm_refs);
1.14 millert 343: printf(" mk = %16p {(%d),%s",
1.1 deraadt 344: rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
1.21 peter 345: p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, 0, -1);
1.1 deraadt 346: putchar('}');
1.13 millert 347: if ((rm = rmask.rm_mklist))
1.1 deraadt 348: printf(" ->");
349: }
350: putchar('\n');
351: }
352:
353: static void
354: ntreestuff()
355: {
356: size_t needed;
357: int mib[6];
358: char *buf, *next, *lim;
359: register struct rt_msghdr *rtm;
360:
1.10 deraadt 361: mib[0] = CTL_NET;
362: mib[1] = PF_ROUTE;
363: mib[2] = 0;
364: mib[3] = 0;
365: mib[4] = NET_RT_DUMP;
366: mib[5] = 0;
367: if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
368: perror("route-sysctl-estimate");
369: exit(1);
370: }
371: if ((buf = malloc(needed)) == 0) {
372: printf("out of space\n");
373: exit(1);
374: }
375: if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
376: perror("sysctl of routing table");
377: exit(1);
378: }
379: lim = buf + needed;
1.1 deraadt 380: for (next = buf; next < lim; next += rtm->rtm_msglen) {
381: rtm = (struct rt_msghdr *)next;
382: np_rtentry(rtm);
383: }
384: }
385:
386: static void
387: np_rtentry(rtm)
388: register struct rt_msghdr *rtm;
389: {
390: register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
391: #ifdef notdef
392: static int masks_done, banner_printed;
393: #endif
394: static int old_af;
395: int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
396:
397: #ifdef notdef
398: /* for the moment, netmasks are skipped over */
399: if (!banner_printed) {
400: printf("Netmasks:\n");
401: banner_printed = 1;
402: }
403: if (masks_done == 0) {
404: if (rtm->rtm_addrs != RTA_DST ) {
405: masks_done = 1;
406: af = sa->sa_family;
407: }
408: } else
409: #endif
410: af = sa->sa_family;
411: if (af != old_af) {
412: pr_family(af);
413: old_af = af;
414: }
415: if (rtm->rtm_addrs == RTA_DST)
1.21 peter 416: p_sockaddr(sa, 0, 0, 36);
1.1 deraadt 417: else {
1.21 peter 418: p_sockaddr(sa, 0, rtm->rtm_flags, 16);
1.29 deraadt 419: sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
1.21 peter 420: p_sockaddr(sa, 0, 0, 18);
1.1 deraadt 421: }
422: p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
423: putchar('\n');
424: }
425:
426: static void
1.21 peter 427: p_sockaddr(sa, mask, flags, width)
428: struct sockaddr *sa, *mask;
1.1 deraadt 429: int flags, width;
430: {
431: char workbuf[128], *cplim;
432: register char *cp = workbuf;
1.25 millert 433: size_t n;
1.1 deraadt 434:
435: switch(sa->sa_family) {
436: case AF_INET:
437: {
438: register struct sockaddr_in *sin = (struct sockaddr_in *)sa;
1.21 peter 439: register struct sockaddr_in *msin = (struct sockaddr_in *)mask;
1.1 deraadt 440:
441: cp = (sin->sin_addr.s_addr == 0) ? "default" :
442: ((flags & RTF_HOST) ?
443: routename(sin->sin_addr.s_addr) :
1.21 peter 444: netname(sin->sin_addr.s_addr, msin->sin_addr.s_addr));
445:
1.1 deraadt 446: break;
447: }
448:
1.30 ! itojun 449: #ifdef INET6
! 450: case AF_INET6:
! 451: {
! 452: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
! 453: #ifdef KAME_SCOPEID
! 454: struct in6_addr *in6 = &sa6->sin6_addr;
! 455:
! 456: /*
! 457: * XXX: This is a special workaround for KAME kernels.
! 458: * sin6_scope_id field of SA should be set in the future.
! 459: */
! 460: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
! 461: IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
! 462: /* XXX: override is ok? */
! 463: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
! 464: *(u_short *)&in6->s6_addr[2] = 0;
! 465: }
! 466: #endif
! 467:
! 468: if (flags & RTF_HOST)
! 469: cp = routename6(sa6);
! 470: else if (mask) {
! 471: cp = netname6(sa6,
! 472: &((struct sockaddr_in6 *)mask)->sin6_addr);
! 473: } else
! 474: cp = netname6(sa6, NULL);
! 475: break;
! 476: }
! 477: #endif
! 478:
1.1 deraadt 479: case AF_NS:
480: cp = ns_print(sa);
481: break;
482:
1.5 mickey 483: case AF_IPX:
484: cp = ipx_print(sa);
485: break;
1.9 angelos 486:
1.1 deraadt 487: case AF_LINK:
488: {
489: register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
490:
491: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
492: sdl->sdl_slen == 0)
1.23 deraadt 493: (void) snprintf(workbuf, sizeof workbuf,
494: "link#%d", sdl->sdl_index);
1.1 deraadt 495: else switch (sdl->sdl_type) {
496: case IFT_ETHER:
497: {
498: register int i;
499: register u_char *lla = (u_char *)sdl->sdl_data +
500: sdl->sdl_nlen;
501:
502: cplim = "";
503: for (i = 0; i < sdl->sdl_alen; i++, lla++) {
1.25 millert 504: n = snprintf(cp,
1.4 deraadt 505: workbuf + sizeof (workbuf) - cp,
506: "%s%x", cplim, *lla);
1.25 millert 507: if (n >= workbuf + sizeof (workbuf) - cp)
508: n = workbuf + sizeof (workbuf) - cp - 1;
509: cp += n;
1.1 deraadt 510: cplim = ":";
511: }
512: cp = workbuf;
513: break;
514: }
515: default:
516: cp = link_ntoa(sdl);
517: break;
518: }
519: break;
520: }
521:
1.18 denny 522: case AF_APPLETALK:
523: {
524: /* XXX could do better */
525: cp = atalk_print(sa,11);
526: break;
527: }
1.1 deraadt 528: default:
529: {
530: register u_char *s = (u_char *)sa->sa_data, *slim;
531:
1.10 deraadt 532: slim = sa->sa_len + (u_char *) sa;
1.1 deraadt 533: cplim = cp + sizeof(workbuf) - 6;
1.25 millert 534: n = snprintf(cp, cplim - cp, "(%d)", sa->sa_family);
535: if (n >= cplim - cp)
536: n = cplim - cp - 1;
537: cp += n;
1.1 deraadt 538: while (s < slim && cp < cplim) {
1.25 millert 539: n = snprintf(cp, workbuf + sizeof (workbuf) - cp,
1.4 deraadt 540: " %02x", *s++);
1.25 millert 541: if (n >= workbuf + sizeof (workbuf) - cp)
542: n = workbuf + sizeof (workbuf) - cp - 1;
543: cp += n;
544: if (s < slim) {
545: n = snprintf(cp,
1.4 deraadt 546: workbuf + sizeof (workbuf) - cp,
547: "%02x", *s++);
1.25 millert 548: if (n >= workbuf + sizeof (workbuf) - cp)
549: n = workbuf + sizeof (workbuf) - cp - 1;
550: cp += n;
551: }
1.1 deraadt 552: }
553: cp = workbuf;
554: }
555: }
556: if (width < 0 )
557: printf("%s ", cp);
558: else {
559: if (nflag)
560: printf("%-*s ", width, cp);
561: else
562: printf("%-*.*s ", width, width, cp);
563: }
564: }
565:
566: static void
567: p_flags(f, format)
568: register int f;
569: char *format;
570: {
571: char name[33], *flags;
572: register struct bits *p = bits;
573:
574: for (flags = name; p->b_mask; p++)
575: if (p->b_mask & f)
576: *flags++ = p->b_val;
577: *flags = '\0';
578: printf(format, name);
579: }
580:
581: static void
582: p_rtentry(rt)
583: register struct rtentry *rt;
584: {
585: static struct ifnet ifnet, *lastif;
1.30 ! itojun 586: struct sockaddr_storage sock1, sock2;
! 587: struct sockaddr *sa = (struct sockaddr *)&sock1;
! 588: struct sockaddr *mask = (struct sockaddr *)&sock2;
1.9 angelos 589:
1.21 peter 590: bcopy(kgetsa(rt_key(rt)), sa, sizeof(struct sockaddr));
1.30 ! itojun 591: if (sa->sa_len > sizeof(struct sockaddr))
! 592: bcopy(kgetsa(rt_key(rt)), sa, sa->sa_len);
1.21 peter 593:
1.26 angelos 594: if (sa->sa_family == PF_KEY) {
1.10 deraadt 595: encap_print(rt);
596: return;
1.9 angelos 597: }
1.21 peter 598:
1.30 ! itojun 599: if (rt_mask(rt)) {
1.21 peter 600: bcopy(kgetsa(rt_mask(rt)), mask, sizeof(struct sockaddr));
1.30 ! itojun 601: if (sa->sa_len > sizeof(struct sockaddr))
! 602: bcopy(kgetsa(rt_mask(rt)), mask, sa->sa_len);
! 603: } else
1.21 peter 604: mask = 0;
1.9 angelos 605:
1.30 ! itojun 606: p_sockaddr(sa, mask, rt->rt_flags, WID_DST(sa->sa_family));
! 607: p_sockaddr(kgetsa(rt->rt_gateway), 0, RTF_HOST, WID_GW(sa->sa_family));
1.1 deraadt 608: p_flags(rt->rt_flags, "%-6.6s ");
1.13 millert 609: printf("%6d %8ld ", rt->rt_refcnt, rt->rt_use);
1.1 deraadt 610: if (rt->rt_rmx.rmx_mtu)
1.13 millert 611: printf("%6ld ", rt->rt_rmx.rmx_mtu);
1.1 deraadt 612: else
613: printf("%6s ", "-");
614: if (rt->rt_ifp) {
615: if (rt->rt_ifp != lastif) {
616: kget(rt->rt_ifp, ifnet);
617: lastif = rt->rt_ifp;
618: }
1.2 deraadt 619: printf(" %.16s%s", ifnet.if_xname,
1.1 deraadt 620: rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
621: }
622: putchar('\n');
623: }
624:
625: char *
626: routename(in)
1.13 millert 627: in_addr_t in;
1.1 deraadt 628: {
629: register char *cp;
1.24 deraadt 630: static char line[MAXHOSTNAMELEN];
1.1 deraadt 631: struct hostent *hp;
1.24 deraadt 632: static char domain[MAXHOSTNAMELEN];
1.1 deraadt 633: static int first = 1;
634:
635: if (first) {
636: first = 0;
1.24 deraadt 637: if (gethostname(domain, sizeof domain) == 0 &&
1.7 millert 638: (cp = strchr(domain, '.')))
1.1 deraadt 639: (void) strcpy(domain, cp + 1);
640: else
641: domain[0] = 0;
642: }
643: cp = 0;
644: if (!nflag) {
645: hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
646: AF_INET);
647: if (hp) {
1.7 millert 648: if ((cp = strchr(hp->h_name, '.')) &&
1.1 deraadt 649: !strcmp(cp + 1, domain))
650: *cp = 0;
651: cp = hp->h_name;
652: }
653: }
1.22 deraadt 654: if (cp) {
1.1 deraadt 655: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 656: line[sizeof(line) - 1] = '\0';
657: } else {
1.1 deraadt 658: #define C(x) ((x) & 0xff)
659: in = ntohl(in);
1.23 deraadt 660: snprintf(line, sizeof line, "%u.%u.%u.%u",
1.1 deraadt 661: C(in >> 24), C(in >> 16), C(in >> 8), C(in));
662: }
663: return (line);
664: }
665:
666: /*
667: * Return the name of the network whose address is given.
668: * The address is assumed to be that of a net or subnet, not a host.
669: */
670: char *
671: netname(in, mask)
1.13 millert 672: in_addr_t in, mask;
1.1 deraadt 673: {
674: char *cp = 0;
1.24 deraadt 675: static char line[MAXHOSTNAMELEN];
1.1 deraadt 676: struct netent *np = 0;
1.21 peter 677: int mbits;
1.1 deraadt 678:
679: in = ntohl(in);
680: mask = ntohl(mask);
681: if (!nflag && in != INADDR_ANY) {
1.30 ! itojun 682: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
1.1 deraadt 683: cp = np->n_name;
684: }
1.21 peter 685: mbits = mask ? 33 - ffs(mask) : 0;
1.22 deraadt 686: if (cp) {
1.1 deraadt 687: strncpy(line, cp, sizeof(line) - 1);
1.22 deraadt 688: line[sizeof(line) - 1] = '\0';
1.27 deraadt 689: } else if (mbits < 9)
1.23 deraadt 690: snprintf(line, sizeof line, "%u/%d", C(in >> 24), mbits);
1.27 deraadt 691: else if (mbits < 17)
1.23 deraadt 692: snprintf(line, sizeof line, "%u.%u/%d",
693: C(in >> 24) , C(in >> 16), mbits);
1.27 deraadt 694: else if (mbits < 25)
1.23 deraadt 695: snprintf(line, sizeof line, "%u.%u.%u/%d",
696: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
1.1 deraadt 697: else
1.23 deraadt 698: snprintf(line, sizeof line, "%u.%u.%u.%u/%d", C(in >> 24),
1.21 peter 699: C(in >> 16), C(in >> 8), C(in), mbits);
1.1 deraadt 700: return (line);
701: }
702:
1.30 ! itojun 703: #ifdef INET6
! 704: char *
! 705: netname6(sa6, mask)
! 706: struct sockaddr_in6 *sa6;
! 707: struct in6_addr *mask;
! 708: {
! 709: static char line[MAXHOSTNAMELEN + 1];
! 710: struct in6_addr net6;
! 711: u_char *p;
! 712: u_char *lim;
! 713: int masklen, final = 0, illegal = 0;
! 714: int i;
! 715: char hbuf[NI_MAXHOST];
! 716: #ifdef NI_WITHSCOPEID
! 717: int flag = NI_WITHSCOPEID;
! 718: #else
! 719: int flag = 0;
! 720: #endif
! 721:
! 722: net6 = sa6->sin6_addr;
! 723: for (i = 0; i < sizeof(net6); i++)
! 724: net6.s6_addr[i] &= mask->s6_addr[i];
! 725:
! 726: masklen = 0;
! 727: lim = (u_char *)mask + 16;
! 728: for (p = (u_char *)mask; p < lim; p++) {
! 729: if (final && *p) {
! 730: illegal++;
! 731: continue;
! 732: }
! 733:
! 734: switch (*p & 0xff) {
! 735: case 0xff:
! 736: masklen += 8;
! 737: break;
! 738: case 0xfe:
! 739: masklen += 7;
! 740: final++;
! 741: break;
! 742: case 0xfc:
! 743: masklen += 6;
! 744: final++;
! 745: break;
! 746: case 0xf8:
! 747: masklen += 5;
! 748: final++;
! 749: break;
! 750: case 0xf0:
! 751: masklen += 4;
! 752: final++;
! 753: break;
! 754: case 0xe0:
! 755: masklen += 3;
! 756: final++;
! 757: break;
! 758: case 0xc0:
! 759: masklen += 2;
! 760: final++;
! 761: break;
! 762: case 0x80:
! 763: masklen += 1;
! 764: final++;
! 765: break;
! 766: case 0x00:
! 767: final++;
! 768: break;
! 769: default:
! 770: final++;
! 771: illegal++;
! 772: break;
! 773: }
! 774: }
! 775:
! 776: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
! 777: return("default");
! 778:
! 779: if (illegal)
! 780: fprintf(stderr, "illegal prefixlen\n");
! 781:
! 782: if (nflag)
! 783: flag |= NI_NUMERICHOST;
! 784: getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, hbuf, sizeof(hbuf),
! 785: NULL, 0, flag);
! 786: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
! 787: return line;
! 788: }
! 789:
! 790: char *
! 791: routename6(sa6)
! 792: struct sockaddr_in6 *sa6;
! 793: {
! 794: static char line[NI_MAXHOST];
! 795: #ifdef NI_WITHSCOPEID
! 796: const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
! 797: #else
! 798: const int niflag = NI_NUMERICHOST;
! 799: #endif
! 800: if (getnameinfo((struct sockaddr *)sa6, sa6->sin6_len,
! 801: line, sizeof(line), NULL, 0, niflag) != 0)
! 802: strcpy(line, "");
! 803: return line;
! 804: }
! 805: #endif /*INET6*/
! 806:
1.1 deraadt 807: /*
808: * Print routing statistics
809: */
810: void
811: rt_stats(off)
812: u_long off;
813: {
814: struct rtstat rtstat;
815:
816: if (off == 0) {
817: printf("rtstat: symbol not in namelist\n");
818: return;
819: }
820: kread(off, (char *)&rtstat, sizeof (rtstat));
821: printf("routing:\n");
822: printf("\t%u bad routing redirect%s\n",
823: rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
824: printf("\t%u dynamically created route%s\n",
825: rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
826: printf("\t%u new gateway%s due to redirects\n",
827: rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
828: printf("\t%u destination%s found unreachable\n",
829: rtstat.rts_unreach, plural(rtstat.rts_unreach));
830: printf("\t%u use%s of a wildcard route\n",
831: rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
832: }
1.5 mickey 833:
1.1 deraadt 834: short ns_nullh[] = {0,0,0};
835: short ns_bh[] = {-1,-1,-1};
836:
837: char *
838: ns_print(sa)
839: register struct sockaddr *sa;
840: {
841: register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
842: struct ns_addr work;
843: union { union ns_net net_e; u_long long_e; } net;
1.13 millert 844: in_port_t port;
1.1 deraadt 845: static char mybuf[50], cport[10], chost[25];
846: char *host = "";
847: register char *p; register u_char *q;
848:
849: work = sns->sns_addr;
850: port = ntohs(work.x_port);
851: work.x_port = 0;
1.10 deraadt 852: net.net_e = work.x_net;
1.1 deraadt 853: if (ns_nullhost(work) && net.long_e == 0) {
854: if (port ) {
1.23 deraadt 855: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.1 deraadt 856: upHex(mybuf);
857: } else
1.23 deraadt 858: snprintf(mybuf, sizeof mybuf, "*.*");
1.1 deraadt 859: return (mybuf);
860: }
861:
862: if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
863: host = "any";
864: } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
865: host = "*";
866: } else {
867: q = work.x_host.c_host;
1.23 deraadt 868: snprintf(chost, sizeof chost, "%02x%02x%02x%02x%02x%02xH",
1.1 deraadt 869: q[0], q[1], q[2], q[3], q[4], q[5]);
870: for (p = chost; *p == '0' && p < chost + 12; p++)
871: continue;
872: host = p;
873: }
874: if (port)
1.23 deraadt 875: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.1 deraadt 876: else
877: *cport = 0;
878:
1.23 deraadt 879: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
880: host, cport);
1.1 deraadt 881: upHex(mybuf);
882: return(mybuf);
883: }
884:
885: char *
886: ns_phost(sa)
887: struct sockaddr *sa;
888: {
889: register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
890: struct sockaddr_ns work;
891: static union ns_net ns_zeronet;
892: char *p;
893:
894: work = *sns;
895: work.sns_addr.x_port = 0;
896: work.sns_addr.x_net = ns_zeronet;
897:
898: p = ns_print((struct sockaddr *)&work);
1.5 mickey 899: if (strncmp("0H.", p, 3) == 0) p += 3;
900: return(p);
901: }
902:
903: u_short ipx_nullh[] = {0,0,0};
904: u_short ipx_bh[] = {0xffff,0xffff,0xffff};
905:
906: char *
907: ipx_print(sa)
908: register struct sockaddr *sa;
909: {
910: register struct sockaddr_ipx *sipx = (struct sockaddr_ipx*)sa;
911: struct ipx_addr work;
912: union { union ipx_net net_e; u_long long_e; } net;
1.13 millert 913: in_port_t port;
1.5 mickey 914: static char mybuf[50], cport[10], chost[25];
915: char *host = "";
1.13 millert 916: register char *q;
1.5 mickey 917:
918: work = sipx->sipx_addr;
919: port = ntohs(work.ipx_port);
920: work.ipx_port = 0;
1.10 deraadt 921: net.net_e = work.ipx_net;
1.5 mickey 922: if (ipx_nullhost(work) && net.long_e == 0) {
923: if (port != 0) {
1.23 deraadt 924: snprintf(mybuf, sizeof mybuf, "*.%xH", port);
1.5 mickey 925: upHex(mybuf);
926: } else
1.23 deraadt 927: snprintf(mybuf, sizeof mybuf, "*.*");
1.5 mickey 928: return (mybuf);
929: }
930:
931: if (bcmp(ipx_bh, work.ipx_host.c_host, 6) == 0) {
932: host = "any";
933: } else if (bcmp(ipx_nullh, work.ipx_host.c_host, 6) == 0) {
934: host = "*";
935: } else {
936: q = work.ipx_host.c_host;
1.23 deraadt 937: snprintf(chost, sizeof chost, "%02x:%02x:%02x:%02x:%02x:%02x",
938: q[0], q[1], q[2], q[3], q[4], q[5]);
1.5 mickey 939: host = chost;
940: }
941: if (port)
1.23 deraadt 942: snprintf(cport, sizeof cport, ".%xH", htons(port));
1.5 mickey 943: else
944: *cport = 0;
945:
1.23 deraadt 946: snprintf(mybuf, sizeof mybuf, "%xH.%s%s", ntohl(net.long_e),
947: host, cport);
1.5 mickey 948: upHex(mybuf);
949: return(mybuf);
950: }
951:
952: char *
953: ipx_phost(sa)
954: struct sockaddr *sa;
955: {
956: register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
957: struct sockaddr_ipx work;
958: static union ipx_net ipx_zeronet;
959: char *p;
960:
961: work = *sipx;
962: work.sipx_addr.ipx_port = 0;
963: work.sipx_addr.ipx_net = ipx_zeronet;
964:
965: p = ipx_print((struct sockaddr *)&work);
1.1 deraadt 966: if (strncmp("0H.", p, 3) == 0) p += 3;
967: return(p);
1.9 angelos 968: }
969:
970: static void
971: encap_print(rt)
972: register struct rtentry *rt;
973: {
1.10 deraadt 974: struct sockaddr_encap sen1, sen2, sen3;
1.9 angelos 975:
976: bcopy(kgetsa(rt_key(rt)), &sen1, sizeof(sen1));
977: bcopy(kgetsa(rt_mask(rt)), &sen2, sizeof(sen2));
978: bcopy(kgetsa(rt->rt_gateway), &sen3, sizeof(sen3));
979:
1.28 ho 980: printf("%-18s %-5u ", netname(sen1.sen_ip_src.s_addr,
981: sen2.sen_ip_src.s_addr),
982: sen1.sen_sport);
983:
984: printf("%-18s %-5u %-5u ", netname(sen1.sen_ip_dst.s_addr,
985: sen2.sen_ip_dst.s_addr),
986: sen1.sen_dport, sen1.sen_proto);
987:
1.30 ! itojun 988: printf("%s/%08x/%-u\n", inet_ntoa(sen3.sen_ipsp_dst),
1.16 angelos 989: ntohl(sen3.sen_ipsp_spi), sen3.sen_ipsp_sproto);
1.1 deraadt 990: }
991:
992: void
993: upHex(p0)
994: char *p0;
995: {
996: register char *p = p0;
997: for (; *p; p++) switch (*p) {
998:
999: case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
1000: *p += ('A' - 'a');
1001: }
1002: }
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