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Unbreak buildworld.
[dragonfly.git] / usr.bin / netstat / route.c
blobe441d69a6b07f966cd6fb19caf7a2fce6d24485f
1 /*
2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)route.c 8.6 (Berkeley) 4/28/95
34 * $FreeBSD: src/usr.bin/netstat/route.c,v 1.41.2.14 2002/07/17 02:22:22 kbyanc Exp $
35 * $DragonFly: src/usr.bin/netstat/route.c,v 1.13 2008/07/07 22:02:10 nant Exp $
36 */
37
38 #include <sys/param.h>
39 #include <sys/socket.h>
40 #include <sys/time.h>
41
42 #include <net/ethernet.h>
43 #include <net/if.h>
44 #include <net/if_var.h>
45 #include <net/if_dl.h>
46 #include <net/if_types.h>
47 #include <net/route.h>
48
49 #include <netinet/in.h>
50 #include <netipx/ipx.h>
51 #include <netatalk/at.h>
52 #include <netgraph/socket/ng_socket.h>
53
54 #ifdef NS
55 #include <netns/ns.h>
56 #endif
57
58 #include <netproto/mpls/mpls.h>
59
60 #include <sys/sysctl.h>
61
62 #include <arpa/inet.h>
63 #include <libutil.h>
64 #include <netdb.h>
65 #include <stdio.h>
66 #include <stdlib.h>
67 #include <string.h>
68 #include <unistd.h>
69 #include <err.h>
70 #include <time.h>
71 #include <kinfo.h>
72 #include "netstat.h"
73
74 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d)))
75
76
77 /* alignment constraint for routing socket */
78 #define ROUNDUP(a) \
79 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
80 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
81
82 /*
83 * Definitions for showing gateway flags.
84 */
85 struct bits {
86 u_long b_mask;
87 char b_val;
88 } bits[] = {
89 { RTF_UP, 'U' },
90 { RTF_GATEWAY, 'G' },
91 { RTF_HOST, 'H' },
92 { RTF_REJECT, 'R' },
93 { RTF_DYNAMIC, 'D' },
94 { RTF_MODIFIED, 'M' },
95 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */
96 { RTF_CLONING, 'C' },
97 { RTF_XRESOLVE, 'X' },
98 { RTF_LLINFO, 'L' },
99 { RTF_STATIC, 'S' },
100 { RTF_PROTO1, '1' },
101 { RTF_PROTO2, '2' },
102 { RTF_WASCLONED,'W' },
103 { RTF_PRCLONING,'c' },
104 { RTF_PROTO3, '3' },
105 { RTF_BLACKHOLE,'B' },
106 { RTF_BROADCAST,'b' },
107 { RTF_MPLSOPS, 'm' },
108 { 0, 0 }
109 };
110
111 typedef union {
112 long dummy; /* Helps align structure. */
113 struct sockaddr u_sa;
114 u_short u_data[128];
115 } sa_u;
116
117 static sa_u pt_u;
118
119 int do_rtent = 0;
120 struct rtentry rtentry;
121 struct radix_node rnode;
122 struct radix_mask rmask;
123 struct radix_node_head *rt_tables[AF_MAX+1];
124
125 int NewTree = 0;
126
127 static struct sockaddr *kgetsa (struct sockaddr *);
128 static void size_cols (int ef, struct radix_node *rn);
129 static void size_cols_tree (struct radix_node *rn);
130 static void size_cols_rtentry (struct rtentry *rt);
131 static void p_tree (struct radix_node *);
132 static void p_rtnode (void);
133 static void ntreestuff (void);
134 static void np_rtentry (struct rt_msghdr *);
135 static void p_sockaddr (struct sockaddr *, struct sockaddr *, int, int);
136 static const char *fmt_sockaddr (struct sockaddr *sa, struct sockaddr *mask,
137 int flags);
138 static void p_flags (int, const char *);
139 static const char *fmt_flags(int f);
140 static void p_rtentry (struct rtentry *);
141 static u_long forgemask (u_long);
142 static void domask (char *, u_long, u_long);
143 static const char *labelops(struct rtentry *);
144
145 /*
146 * Print routing tables.
147 */
148 void
149 routepr(u_long rtree)
150 {
151 struct radix_node_head *rnh, head;
152 int i;
153
154 printf("Routing tables\n");
155
156 if (Aflag == 0 && NewTree) {
157 ntreestuff();
158 } else {
159 if (rtree == 0) {
160 printf("rt_tables: symbol not in namelist\n");
161 return;
162 }
163 if (cpuflag >= 0) {
164 /*
165 * Severe hack.
166 */
167 rtree += cpuflag * (AF_MAX + 1) * sizeof(void *);
168 }
169 kget(rtree, rt_tables);
170 for (i = 0; i <= AF_MAX; i++) {
171 if ((rnh = rt_tables[i]) == 0)
172 continue;
173 kget(rnh, head);
174 if (i == AF_UNSPEC) {
175 if (Aflag && af == 0) {
176 printf("Netmasks:\n");
177 p_tree(head.rnh_treetop);
178 }
179 } else if (af == AF_UNSPEC || af == i) {
180 size_cols(i, head.rnh_treetop);
181 pr_family(i);
182 do_rtent = 1;
183 pr_rthdr(i);
184 p_tree(head.rnh_treetop);
185 }
186 }
187 }
188 }
189
190 /*
191 * Print address family header before a section of the routing table.
192 */
193 void
194 pr_family(int af1)
195 {
196 const char *afname;
197
198 switch (af1) {
199 case AF_INET:
200 afname = "Internet";
201 break;
202 #ifdef INET6
203 case AF_INET6:
204 afname = "Internet6";
205 break;
206 #endif /*INET6*/
207 case AF_IPX:
208 afname = "IPX";
209 break;
210 #ifdef NS
211 case AF_NS:
212 afname = "XNS";
213 break;
214 #endif
215 case AF_ISO:
216 afname = "ISO";
217 break;
218 case AF_APPLETALK:
219 afname = "AppleTalk";
220 break;
221 case AF_CCITT:
222 afname = "X.25";
223 break;
224 case AF_NETGRAPH:
225 afname = "Netgraph";
226 break;
227 case AF_MPLS:
228 afname = "MPLS";
229 break;
230 default:
231 afname = NULL;
232 break;
233 }
234 if (afname)
235 printf("\n%s:\n", afname);
236 else
237 printf("\nProtocol Family %d:\n", af1);
238 }
239
240 /* column widths; each followed by one space */
241 #ifndef INET6
242 #define WID_DST_DEFAULT(af) 18 /* width of destination column */
243 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */
244 #define WID_IF_DEFAULT(af) (Wflag ? 8 : 6) /* width of netif column */
245 #else
246 #define WID_DST_DEFAULT(af) \
247 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18)
248 #define WID_GW_DEFAULT(af) \
249 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18)
250 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 8 :6))
251 #endif /*INET6*/
252
253 static int wid_dst;
254 static int wid_gw;
255 static int wid_flags;
256 static int wid_refs;
257 static int wid_use;
258 static int wid_mtu;
259 static int wid_if;
260 static int wid_expire;
261 static int wid_mplslops;
262
263 static void
264 size_cols(int ef, struct radix_node *rn)
265 {
266 wid_dst = WID_DST_DEFAULT(ef);
267 wid_gw = WID_GW_DEFAULT(ef);
268 wid_flags = 6;
269 wid_refs = 6;
270 wid_use = 8;
271 wid_mtu = 6;
272 wid_if = WID_IF_DEFAULT(ef);
273 wid_expire = 6;
274 wid_mplslops = 7;
275
276 if (Wflag)
277 size_cols_tree(rn);
278 }
279
280 static void
281 size_cols_tree(struct radix_node *rn)
282 {
283 again:
284 kget(rn, rnode);
285 if (rnode.rn_bit < 0) {
286 if ((rnode.rn_flags & RNF_ROOT) == 0) {
287 kget(rn, rtentry);
288 size_cols_rtentry(&rtentry);
289 }
290 if ((rn = rnode.rn_dupedkey))
291 goto again;
292 } else {
293 rn = rnode.rn_right;
294 size_cols_tree(rnode.rn_left);
295 size_cols_tree(rn);
296 }
297 }
298
299 static void
300 size_cols_rtentry(struct rtentry *rt)
301 {
302 static struct ifnet ifnet, *lastif;
303 struct rtentry parent;
304 static char buffer[100];
305 const char *bp;
306 struct sockaddr *sa;
307 sa_u addr, mask;
308 int len;
309
310 /*
311 * Don't print protocol-cloned routes unless -a.
312 */
313 if (rt->rt_flags & RTF_WASCLONED && !aflag) {
314 kget(rt->rt_parent, parent);
315 if (parent.rt_flags & RTF_PRCLONING)
316 return;
317 }
318
319 bzero(&addr, sizeof(addr));
320 if ((sa = kgetsa(rt_key(rt))))
321 bcopy(sa, &addr, sa->sa_len);
322 bzero(&mask, sizeof(mask));
323 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt))))
324 bcopy(sa, &mask, sa->sa_len);
325 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags);
326 len = strlen(bp);
327 wid_dst = MAX(len, wid_dst);
328
329 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST);
330 len = strlen(bp);
331 wid_gw = MAX(len, wid_gw);
332
333 bp = fmt_flags(rt->rt_flags);
334 len = strlen(bp);
335 wid_flags = MAX(len, wid_flags);
336
337 if (addr.u_sa.sa_family == AF_INET || Wflag) {
338 len = snprintf(buffer, sizeof(buffer), "%ld", rt->rt_refcnt);
339 wid_refs = MAX(len, wid_refs);
340 len = snprintf(buffer, sizeof(buffer), "%lu", rt->rt_use);
341 wid_use = MAX(len, wid_use);
342 if (Wflag && rt->rt_rmx.rmx_mtu != 0) {
343 len = snprintf(buffer, sizeof(buffer),
344 "%lu", rt->rt_rmx.rmx_mtu);
345 wid_mtu = MAX(len, wid_mtu);
346 }
347 }
348 if (rt->rt_ifp) {
349 if (rt->rt_ifp != lastif) {
350 kget(rt->rt_ifp, ifnet);
351 lastif = rt->rt_ifp;
352 len = strlen(ifnet.if_xname);
353 wid_if = MAX(len, wid_if);
354 }
355 if (rt->rt_rmx.rmx_expire) {
356 time_t expire_time;
357
358 if ((expire_time =
359 rt->rt_rmx.rmx_expire - time(NULL)) > 0) {
360 snprintf(buffer, sizeof(buffer), "%d",
361 (int)expire_time);
362 wid_expire = MAX(len, wid_expire);
363 }
364 }
365 }
366 if (rt->rt_shim[0] != NULL)
367 len = strlen(labelops(rt));
368 wid_mplslops = MAX(len, wid_mplslops);
369 }
370
371
372 /*
373 * Print header for routing table columns.
374 */
375 void
376 pr_rthdr(int af1)
377 {
378
379 if (Aflag)
380 printf("%-8.8s ","Address");
381 if (af1 == AF_INET || Wflag) {
382 if (Wflag) {
383 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*.*s %*s %-*s\n",
384 wid_dst, wid_dst, "Destination",
385 wid_gw, wid_gw, "Gateway",
386 wid_flags, wid_flags, "Flags",
387 wid_refs, wid_refs, "Refs",
388 wid_use, wid_use, "Use",
389 wid_mtu, wid_mtu, "Mtu",
390 wid_if, wid_if, "Netif",
391 wid_expire, "Expire",
392 wid_mplslops, "Labelops");
393 } else {
394 printf("%-*.*s %-*.*s %-*.*s %*.*s %*.*s %*.*s %*s\n",
395 wid_dst, wid_dst, "Destination",
396 wid_gw, wid_gw, "Gateway",
397 wid_flags, wid_flags, "Flags",
398 wid_refs, wid_refs, "Refs",
399 wid_use, wid_use, "Use",
400 wid_if, wid_if, "Netif",
401 wid_expire, "Expire");
402 }
403 } else {
404 printf("%-*.*s %-*.*s %-*.*s %*.*s %*s\n",
405 wid_dst, wid_dst, "Destination",
406 wid_gw, wid_gw, "Gateway",
407 wid_flags, wid_flags, "Flags",
408 wid_if, wid_if, "Netif",
409 wid_expire, "Expire");
410 }
411 }
412
413 static struct sockaddr *
414 kgetsa(struct sockaddr *dst)
415 {
416
417 kget(dst, pt_u.u_sa);
418 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
419 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
420 return (&pt_u.u_sa);
421 }
422
423 static void
424 p_tree(struct radix_node *rn)
425 {
426
427 again:
428 kget(rn, rnode);
429 if (rnode.rn_bit < 0) {
430 if (Aflag)
431 printf("%-8.8lx ", (u_long)rn);
432 if (rnode.rn_flags & RNF_ROOT) {
433 if (Aflag)
434 printf("(root node)%s",
435 rnode.rn_dupedkey ? " =>\n" : "\n");
436 } else if (do_rtent) {
437 kget(rn, rtentry);
438 p_rtentry(&rtentry);
439 if (Aflag)
440 p_rtnode();
441 } else {
442 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
443 NULL, 0, 44);
444 putchar('\n');
445 }
446 if ((rn = rnode.rn_dupedkey))
447 goto again;
448 } else {
449 if (Aflag && do_rtent) {
450 printf("%-8.8lx ", (u_long)rn);
451 p_rtnode();
452 }
453 rn = rnode.rn_right;
454 p_tree(rnode.rn_left);
455 p_tree(rn);
456 }
457 }
458
459 char nbuf[20];
460
461 static void
462 p_rtnode(void)
463 {
464 struct radix_mask *rm = rnode.rn_mklist;
465
466 if (rnode.rn_bit < 0) {
467 if (rnode.rn_mask) {
468 printf("\t mask ");
469 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
470 NULL, 0, -1);
471 } else if (rm == 0)
472 return;
473 } else {
474 sprintf(nbuf, "(%d)", rnode.rn_bit);
475 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right);
476 }
477 while (rm) {
478 kget(rm, rmask);
479 sprintf(nbuf, " %d refs, ", rmask.rm_refs);
480 printf(" mk = %8.8lx {(%d),%s",
481 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " ");
482 if (rmask.rm_flags & RNF_NORMAL) {
483 struct radix_node rnode_aux;
484 printf(" <normal>, ");
485 kget(rmask.rm_leaf, rnode_aux);
486 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask),
487 NULL, 0, -1);
488 } else
489 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask),
490 NULL, 0, -1);
491 putchar('}');
492 if ((rm = rmask.rm_next))
493 printf(" ->");
494 }
495 putchar('\n');
496 }
497
498 static void
499 ntreestuff(void)
500 {
501 size_t needed;
502 int mib[7];
503 int miblen;
504 char *buf, *next, *lim;
505 struct rt_msghdr *rtm;
506
507 mib[0] = CTL_NET;
508 mib[1] = PF_ROUTE;
509 mib[2] = 0;
510 mib[3] = 0;
511 mib[4] = NET_RT_DUMP;
512 mib[5] = 0;
513 if (cpuflag >= 0) {
514 mib[6] = cpuflag;
515 miblen = 7;
516 } else {
517 miblen = 6;
518 }
519 if (sysctl(mib, miblen, NULL, &needed, NULL, 0) < 0) {
520 err(1, "sysctl: net.route.0.0.dump estimate");
521 }
522
523 if ((buf = malloc(needed)) == 0) {
524 err(2, "malloc(%lu)", (unsigned long)needed);
525 }
526 if (sysctl(mib, miblen, buf, &needed, NULL, 0) < 0) {
527 err(1, "sysctl: net.route.0.0.dump");
528 }
529 lim = buf + needed;
530 for (next = buf; next < lim; next += rtm->rtm_msglen) {
531 rtm = (struct rt_msghdr *)next;
532 np_rtentry(rtm);
533 }
534 }
535
536 static void
537 np_rtentry(struct rt_msghdr *rtm)
538 {
539 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
540 #ifdef notdef
541 static int masks_done, banner_printed;
542 #endif
543 static int old_af;
544 int af1 = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
545
546 #ifdef notdef
547 /* for the moment, netmasks are skipped over */
548 if (!banner_printed) {
549 printf("Netmasks:\n");
550 banner_printed = 1;
551 }
552 if (masks_done == 0) {
553 if (rtm->rtm_addrs != RTA_DST ) {
554 masks_done = 1;
555 af1 = sa->sa_family;
556 }
557 } else
558 #endif
559 af1 = sa->sa_family;
560 if (af1 != old_af) {
561 pr_family(af1);
562 old_af = af1;
563 }
564 if (rtm->rtm_addrs == RTA_DST)
565 p_sockaddr(sa, NULL, 0, 36);
566 else {
567 p_sockaddr(sa, NULL, rtm->rtm_flags, 16);
568 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
569 p_sockaddr(sa, NULL, 0, 18);
570 }
571 p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
572 putchar('\n');
573 }
574
575 static void
576 p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
577 {
578 const char *cp;
579
580 cp = fmt_sockaddr(sa, mask, flags);
581
582 if (width < 0 )
583 printf("%s ", cp);
584 else {
585 if (numeric_addr)
586 printf("%-*s ", width, cp);
587 else
588 printf("%-*.*s ", width, width, cp);
589 }
590 }
591
592 static const char *
593 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags)
594 {
595 static char workbuf[128];
596 const char *cp = workbuf;
597
598 switch(sa->sa_family) {
599 case AF_INET:
600 {
601 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
602
603 if ((sin->sin_addr.s_addr == INADDR_ANY) &&
604 mask &&
605 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr)
606 ==0L)
607 cp = "default" ;
608 else if (flags & RTF_HOST)
609 cp = routename(sin->sin_addr.s_addr);
610 else if (mask)
611 cp = netname(sin->sin_addr.s_addr,
612 ntohl(((struct sockaddr_in *)mask)
613 ->sin_addr.s_addr));
614 else
615 cp = netname(sin->sin_addr.s_addr, 0L);
616 break;
617 }
618
619 #ifdef INET6
620 case AF_INET6:
621 {
622 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
623 struct in6_addr *in6 = &sa6->sin6_addr;
624
625 /*
626 * XXX: This is a special workaround for KAME kernels.
627 * sin6_scope_id field of SA should be set in the future.
628 */
629 if (IN6_IS_ADDR_LINKLOCAL(in6) ||
630 IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
631 /* XXX: override is ok? */
632 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
633 *(u_short *)&in6->s6_addr[2] = 0;
634 }
635
636 if (flags & RTF_HOST)
637 cp = routename6(sa6);
638 else if (mask)
639 cp = netname6(sa6,
640 &((struct sockaddr_in6 *)mask)->sin6_addr);
641 else {
642 cp = netname6(sa6, NULL);
643 }
644 break;
645 }
646 #endif /*INET6*/
647
648 case AF_IPX:
649 {
650 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
651 if (ipx_nullnet(satoipx_addr(work)))
652 cp = "default";
653 else
654 cp = ipx_print(sa);
655 break;
656 }
657 case AF_APPLETALK:
658 {
659 if (!(flags & RTF_HOST) && mask)
660 cp = atalk_print2(sa,mask,9);
661 else
662 cp = atalk_print(sa,11);
663 break;
664 }
665 case AF_NETGRAPH:
666 {
667 printf("%s", ((struct sockaddr_ng *)sa)->sg_data);
668 break;
669 }
670 #ifdef NS
671 case AF_NS:
672 cp = ns_print(sa);
673 break;
674 #endif
675
676 case AF_LINK:
677 {
678 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
679
680 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
681 sdl->sdl_slen == 0)
682 (void) sprintf(workbuf, "link#%d", sdl->sdl_index);
683 else
684 switch (sdl->sdl_type) {
685
686 case IFT_ETHER:
687 case IFT_L2VLAN:
688 if (sdl->sdl_alen == ETHER_ADDR_LEN) {
689 cp = ether_ntoa((struct ether_addr *)
690 (sdl->sdl_data + sdl->sdl_nlen));
691 break;
692 }
693 /* FALLTHROUGH */
694 default:
695 cp = link_ntoa(sdl);
696 break;
697 }
698 break;
699 }
700
701 case AF_MPLS:
702 {
703 struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
704
705 (void) sprintf(workbuf, "%d", ntohl(smpls->smpls_label));
706 break;
707 }
708
709 default:
710 {
711 u_char *s = (u_char *)sa->sa_data, *slim;
712 char *cq, *cqlim;
713
714 cq = workbuf;
715 slim = sa->sa_len + (u_char *) sa;
716 cqlim = cq + sizeof(workbuf) - 6;
717 cq += sprintf(cq, "(%d)", sa->sa_family);
718 while (s < slim && cq < cqlim) {
719 cq += sprintf(cq, " %02x", *s++);
720 if (s < slim)
721 cq += sprintf(cq, "%02x", *s++);
722 }
723 cp = workbuf;
724 }
725 }
726
727 return (cp);
728 }
729
730 static void
731 p_flags(int f, const char *format)
732 {
733 printf(format, fmt_flags(f));
734 }
735
736 static const char *
737 fmt_flags(int f)
738 {
739 static char name[33];
740 char *flags;
741 struct bits *p = bits;
742
743 for (flags = name; p->b_mask; p++)
744 if (p->b_mask & f)
745 *flags++ = p->b_val;
746 *flags = '\0';
747 return (name);
748 }
749
750 static void
751 p_rtentry(struct rtentry *rt)
752 {
753 static struct ifnet ifnet, *lastif;
754 struct rtentry parent;
755 static char buffer[128];
756 static char prettyname[128];
757 struct sockaddr *sa;
758 sa_u addr, mask;
759
760 /*
761 * Don't print protocol-cloned routes unless -a.
762 */
763 if (rt->rt_flags & RTF_WASCLONED && !aflag) {
764 kget(rt->rt_parent, parent);
765 if (parent.rt_flags & RTF_PRCLONING)
766 return;
767 }
768
769 bzero(&addr, sizeof(addr));
770 if ((sa = kgetsa(rt_key(rt))))
771 bcopy(sa, &addr, sa->sa_len);
772 bzero(&mask, sizeof(mask));
773 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt))))
774 bcopy(sa, &mask, sa->sa_len);
775 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, wid_dst);
776 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw);
777 snprintf(buffer, sizeof(buffer), "%%-%d.%ds ", wid_flags, wid_flags);
778 p_flags(rt->rt_flags, buffer);
779 if (addr.u_sa.sa_family == AF_INET || Wflag) {
780 printf("%*ld %*lu ", wid_refs, rt->rt_refcnt,
781 wid_use, rt->rt_use);
782 if (Wflag) {
783 if (rt->rt_rmx.rmx_mtu != 0)
784 printf("%*lu ", wid_mtu, rt->rt_rmx.rmx_mtu);
785 else
786 printf("%*s ", wid_mtu, "");
787 }
788 }
789 if (rt->rt_ifp) {
790 if (rt->rt_ifp != lastif) {
791 kget(rt->rt_ifp, ifnet);
792 lastif = rt->rt_ifp;
793 strlcpy(prettyname, ifnet.if_xname, sizeof(prettyname));
794 }
795 printf("%*.*s", wid_if, wid_if, prettyname);
796 if (rt->rt_rmx.rmx_expire) {
797 time_t expire_time;
798
799 if ((expire_time =
800 rt->rt_rmx.rmx_expire - time(NULL)) > 0)
801 printf(" %*d", wid_expire, (int)expire_time);
802 } else {
803 printf("%*s ", wid_expire, "");
804 }
805 if (rt->rt_nodes[0].rn_dupedkey)
806 printf(" =>");
807 }
808 if (Wflag) {
809 if (rt->rt_shim[0] != NULL)
810 printf(" %-*s", wid_mplslops, labelops(rt));
811 }
812 putchar('\n');
813 }
814
815 char *
816 routename(u_long in)
817 {
818 char *cp;
819 static char line[MAXHOSTNAMELEN];
820 struct hostent *hp;
821
822 cp = 0;
823 if (!numeric_addr) {
824 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET);
825 if (hp) {
826 cp = hp->h_name;
827 trimdomain(cp, strlen(cp));
828 }
829 }
830 if (cp) {
831 strncpy(line, cp, sizeof(line) - 1);
832 line[sizeof(line) - 1] = '\0';
833 } else {
834 #define C(x) ((x) & 0xff)
835 in = ntohl(in);
836 sprintf(line, "%lu.%lu.%lu.%lu",
837 C(in >> 24), C(in >> 16), C(in >> 8), C(in));
838 }
839 return (line);
840 }
841
842 static u_long
843 forgemask(u_long a)
844 {
845 u_long m;
846
847 if (IN_CLASSA(a))
848 m = IN_CLASSA_NET;
849 else if (IN_CLASSB(a))
850 m = IN_CLASSB_NET;
851 else
852 m = IN_CLASSC_NET;
853 return (m);
854 }
855
856 static void
857 domask(char *dst, u_long addr, u_long mask)
858 {
859 int b, i;
860
861 if (!mask || (forgemask(addr) == mask)) {
862 *dst = '\0';
863 return;
864 }
865 i = 0;
866 for (b = 0; b < 32; b++)
867 if (mask & (1 << b)) {
868 int bb;
869
870 i = b;
871 for (bb = b+1; bb < 32; bb++)
872 if (!(mask & (1 << bb))) {
873 i = -1; /* noncontig */
874 break;
875 }
876 break;
877 }
878 if (i == -1)
879 sprintf(dst, "&0x%lx", mask);
880 else
881 sprintf(dst, "/%d", 32-i);
882 }
883
884 /*
885 * Return the name of the network whose address is given.
886 * The address is assumed to be that of a net or subnet, not a host.
887 */
888 char *
889 netname(u_long in, u_long mask)
890 {
891 char *cp = 0;
892 static char line[MAXHOSTNAMELEN];
893 struct netent *np = 0;
894 u_long dmask;
895 u_long i;
896
897 #define NSHIFT(m) ( \
898 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \
899 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \
900 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \
901 0)
902
903 i = ntohl(in);
904 dmask = forgemask(i);
905 if (!numeric_addr && i) {
906 np = getnetbyaddr(i >> NSHIFT(mask), AF_INET);
907 if (np == NULL && mask == 0)
908 np = getnetbyaddr(i >> NSHIFT(dmask), AF_INET);
909 if (np != NULL) {
910 cp = np->n_name;
911 trimdomain(cp, strlen(cp));
912 }
913 }
914 #undef NSHIFT
915 if (cp != NULL) {
916 strncpy(line, cp, sizeof(line) - 1);
917 line[sizeof(line) - 1] = '\0';
918 } else {
919 if (mask <= IN_CLASSA_NET &&
920 (i & IN_CLASSA_HOST) == 0) {
921 sprintf(line, "%lu", C(i >> 24));
922 } else if (mask <= IN_CLASSB_NET &&
923 (i & IN_CLASSB_HOST) == 0) {
924 sprintf(line, "%lu.%lu",
925 C(i >> 24), C(i >> 16));
926 } else if (mask <= IN_CLASSC_NET &&
927 (i & IN_CLASSC_HOST) == 0) {
928 sprintf(line, "%lu.%lu.%lu",
929 C(i >> 24), C(i >> 16), C(i >> 8));
930 } else {
931 sprintf(line, "%lu.%lu.%lu.%lu",
932 C(i >> 24), C(i >> 16), C(i >> 8), C(i));
933 }
934 }
935 domask(line + strlen(line), i, mask);
936 return (line);
937 }
938
939 #ifdef INET6
940 const char *
941 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask)
942 {
943 static char line[MAXHOSTNAMELEN];
944 u_char *p = (u_char *)mask;
945 u_char *lim;
946 int masklen, illegal = 0, flag = NI_WITHSCOPEID;
947
948 if (mask) {
949 for (masklen = 0, lim = p + 16; p < lim; p++) {
950 switch (*p) {
951 case 0xff:
952 masklen += 8;
953 break;
954 case 0xfe:
955 masklen += 7;
956 break;
957 case 0xfc:
958 masklen += 6;
959 break;
960 case 0xf8:
961 masklen += 5;
962 break;
963 case 0xf0:
964 masklen += 4;
965 break;
966 case 0xe0:
967 masklen += 3;
968 break;
969 case 0xc0:
970 masklen += 2;
971 break;
972 case 0x80:
973 masklen += 1;
974 break;
975 case 0x00:
976 break;
977 default:
978 illegal ++;
979 break;
980 }
981 }
982 if (illegal)
983 fprintf(stderr, "illegal prefixlen\n");
984 }
985 else
986 masklen = 128;
987
988 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
989 return("default");
990
991 if (numeric_addr)
992 flag |= NI_NUMERICHOST;
993 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line),
994 NULL, 0, flag);
995
996 if (numeric_addr)
997 sprintf(&line[strlen(line)], "/%d", masklen);
998
999 return line;
1000 }
1001
1002 char *
1003 routename6(struct sockaddr_in6 *sa6)
1004 {
1005 static char line[MAXHOSTNAMELEN];
1006 int flag = NI_WITHSCOPEID;
1007 /* use local variable for safety */
1008 struct sockaddr_in6 sa6_local;
1009
1010 sa6_local.sin6_family = AF_INET6;
1011 sa6_local.sin6_len = sizeof(sa6_local);
1012 sa6_local.sin6_addr = sa6->sin6_addr;
1013 sa6_local.sin6_scope_id = sa6->sin6_scope_id;
1014
1015 if (numeric_addr)
1016 flag |= NI_NUMERICHOST;
1017
1018 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len,
1019 line, sizeof(line), NULL, 0, flag);
1020
1021 return line;
1022 }
1023 #endif /*INET6*/
1024
1025 /*
1026 * Print routing statistics
1027 */
1028 void
1029 rt_stats(void)
1030 {
1031 struct rtstatistics rts;
1032 int error = 0;
1033
1034 error = kinfo_get_net_rtstatistics(&rts);
1035 if (error) {
1036 printf("routing: could not retrieve statistics\n");
1037 return;
1038 }
1039 printf("routing:\n");
1040
1041 #define p(f, m) if (rts.f || sflag <= 1) \
1042 printf(m, rts.f, plural(rts.f))
1043
1044 p(rts_badredirect, "\t%lu bad routing redirect%s\n");
1045 p(rts_dynamic, "\t%lu dynamically created route%s\n");
1046 p(rts_newgateway, "\t%lu new gateway%s due to redirects\n");
1047 p(rts_unreach, "\t%lu destination%s found unreachable\n");
1048 p(rts_wildcard, "\t%lu use%s of a wildcard route\n");
1049 #undef p
1050 }
1051
1052 char *
1053 ipx_print(struct sockaddr *sa)
1054 {
1055 u_short port;
1056 struct servent *sp = 0;
1057 const char *net = "", *host = "";
1058 char *p;
1059 u_char *q;
1060 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
1061 static char mybuf[50];
1062 char cport[10], chost[15], cnet[15];
1063
1064 port = ntohs(work.x_port);
1065
1066 if (ipx_nullnet(work) && ipx_nullhost(work)) {
1067
1068 if (port) {
1069 if (sp)
1070 sprintf(mybuf, "*.%s", sp->s_name);
1071 else
1072 sprintf(mybuf, "*.%x", port);
1073 } else
1074 sprintf(mybuf, "*.*");
1075
1076 return (mybuf);
1077 }
1078
1079 if (ipx_wildnet(work))
1080 net = "any";
1081 else if (ipx_nullnet(work))
1082 net = "*";
1083 else {
1084 q = work.x_net.c_net;
1085 sprintf(cnet, "%02x%02x%02x%02x",
1086 q[0], q[1], q[2], q[3]);
1087 for (p = cnet; *p == '0' && p < cnet + 8; p++)
1088 continue;
1089 net = p;
1090 }
1091
1092 if (ipx_wildhost(work))
1093 host = "any";
1094 else if (ipx_nullhost(work))
1095 host = "*";
1096 else {
1097 q = work.x_host.c_host;
1098 sprintf(chost, "%02x%02x%02x%02x%02x%02x",
1099 q[0], q[1], q[2], q[3], q[4], q[5]);
1100 for (p = chost; *p == '0' && p < chost + 12; p++)
1101 continue;
1102 host = p;
1103 }
1104
1105 if (port) {
1106 if (strcmp(host, "*") == 0)
1107 host = "";
1108 if (sp)
1109 snprintf(cport, sizeof(cport),
1110 "%s%s", *host ? "." : "", sp->s_name);
1111 else
1112 snprintf(cport, sizeof(cport),
1113 "%s%x", *host ? "." : "", port);
1114 } else
1115 *cport = 0;
1116
1117 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport);
1118 return(mybuf);
1119 }
1120
1121 char *
1122 ipx_phost(struct sockaddr *sa)
1123 {
1124 struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
1125 struct sockaddr_ipx work;
1126 static union ipx_net ipx_zeronet;
1127 char *p;
1128 struct ipx_addr in;
1129
1130 work = *sipx;
1131 in = work.sipx_addr;
1132
1133 work.sipx_addr.x_port = 0;
1134 work.sipx_addr.x_net = ipx_zeronet;
1135 p = ipx_print((struct sockaddr *)&work);
1136 if (strncmp("*.", p, 2) == 0) p += 2;
1137
1138 return(p);
1139 }
1140
1141 #ifdef NS
1142 short ns_nullh[] = {0,0,0};
1143 short ns_bh[] = {-1,-1,-1};
1144
1145 char *
1146 ns_print(struct sockaddr *sa)
1147 {
1148 struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
1149 struct ns_addr work;
1150 union { union ns_net net_e; u_long long_e; } net;
1151 u_short port;
1152 static char mybuf[50], cport[10], chost[25];
1153 char *host = "";
1154 char *p; u_char *q;
1155
1156 work = sns->sns_addr;
1157 port = ntohs(work.x_port);
1158 work.x_port = 0;
1159 net.net_e = work.x_net;
1160 if (ns_nullhost(work) && net.long_e == 0) {
1161 if (port ) {
1162 sprintf(mybuf, "*.%xH", port);
1163 upHex(mybuf);
1164 } else
1165 sprintf(mybuf, "*.*");
1166 return (mybuf);
1167 }
1168
1169 if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
1170 host = "any";
1171 } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
1172 host = "*";
1173 } else {
1174 q = work.x_host.c_host;
1175 sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
1176 q[0], q[1], q[2], q[3], q[4], q[5]);
1177 for (p = chost; *p == '0' && p < chost + 12; p++)
1178 continue;
1179 host = p;
1180 }
1181 if (port)
1182 sprintf(cport, ".%xH", htons(port));
1183 else
1184 *cport = 0;
1185
1186 sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
1187 upHex(mybuf);
1188 return(mybuf);
1189 }
1190
1191 char *
1192 ns_phost(struct sockaddr *sa)
1193 {
1194 struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
1195 struct sockaddr_ns work;
1196 static union ns_net ns_zeronet;
1197 char *p;
1198
1199 work = *sns;
1200 work.sns_addr.x_port = 0;
1201 work.sns_addr.x_net = ns_zeronet;
1202
1203 p = ns_print((struct sockaddr *)&work);
1204 if (strncmp("0H.", p, 3) == 0)
1205 p += 3;
1206 return(p);
1207 }
1208 #endif
1209
1210 void
1211 upHex(char *p0)
1212 {
1213 char *p = p0;
1214
1215 for (; *p; p++)
1216 switch (*p) {
1217
1218 case 'a':
1219 case 'b':
1220 case 'c':
1221 case 'd':
1222 case 'e':
1223 case 'f':
1224 *p += ('A' - 'a');
1225 break;
1226 }
1227 }
1228
1229 static const char *
1230 labelops(struct rtentry *rt)
1231 {
1232 const char *lops[] = { "push", "pop", "swap", "pop all" };
1233 static char buffer[100];
1234 char *cp = buffer;
1235 struct sockaddr_mpls *smpls;
1236 int i;
1237
1238 for (i=0; i<MPLS_MAXLOPS; ++i) {
1239
1240 if (rt->rt_shim[i] == NULL)
1241 break;
1242 if (i>0) {
1243 cp += snprintf(cp,
1244 sizeof(buffer) - (cp - buffer),
1245 ", ");
1246 }
1247 smpls = (struct sockaddr_mpls *)kgetsa(rt->rt_shim[i]);
1248 if (smpls->smpls_op != MPLSLOP_POP &&
1249 smpls->smpls_op != MPLSLOP_POPALL){
1250 cp += snprintf(cp,
1251 sizeof(buffer) - (cp - buffer),
1252 "%s %d",
1253 lops[smpls->smpls_op - 1],
1254 ntohl(smpls->smpls_label));
1255 } else {
1256 cp += snprintf(cp,
1257 sizeof(buffer) - (cp - buffer),
1258 "%s",
1259 lops[smpls->smpls_op - 1]);
1260 }
1261 }
1262
1263 return (buffer);
1264 }
DragonFly BSD