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tcp: Cache align ACK queue header.
[dragonfly.git] / usr.sbin / ndp / ndp.c
blobf7515d45d736526926633d256425cf4897445b7b
1 /* $FreeBSD: src/usr.sbin/ndp/ndp.c,v 1.2.2.6 2003/08/12 16:27:57 ume Exp $ */
2 /* $KAME: ndp.c,v 1.65 2001/05/08 04:36:34 itojun Exp $ */
3
4 /*
5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
6 * 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. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32 /*
33 * Copyright (c) 1984, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * This code is derived from software contributed to Berkeley by
37 * Sun Microsystems, Inc.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
47 * 3. Neither the name of the University nor the names of its contributors
48 * may be used to endorse or promote products derived from this software
49 * without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61 * SUCH DAMAGE.
62 */
63
64 /*
65 * Based on:
66 * "@(#) Copyright (c) 1984, 1993\n\
67 * The Regents of the University of California. All rights reserved.\n";
68 *
69 * "@(#)arp.c 8.2 (Berkeley) 1/2/94";
70 */
71
72 /*
73 * ndp - display, set, delete and flush neighbor cache
74 */
75
76
77 #include <sys/param.h>
78 #include <sys/file.h>
79 #include <sys/ioctl.h>
80 #include <sys/socket.h>
81 #include <sys/sysctl.h>
82 #include <sys/time.h>
83 #include <sys/queue.h>
84
85 #include <net/if.h>
86 #include <net/if_var.h>
87 #include <net/if_dl.h>
88 #include <net/if_types.h>
89 #include <net/route.h>
90
91 #include <netinet/in.h>
92 #include <netinet/if_ether.h>
93
94 #include <netinet/icmp6.h>
95 #include <netinet6/in6_var.h>
96 #include <netinet6/nd6.h>
97
98 #include <arpa/inet.h>
99
100 #include <netdb.h>
101 #include <errno.h>
102 #include <nlist.h>
103 #include <stdio.h>
104 #include <string.h>
105 #include <paths.h>
106 #include <err.h>
107 #include <stdlib.h>
108 #include <fcntl.h>
109 #include <unistd.h>
110 #include "gmt2local.h"
111
112 #ifndef NI_WITHSCOPEID
113 #define NI_WITHSCOPEID 0
114 #endif
115
116 static int pid;
117 static int cflag;
118 static int nflag;
119 static int tflag;
120 static int32_t thiszone; /* time difference with gmt */
121 static int s = -1;
122 static int repeat = 0;
123
124 char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
125 char host_buf[NI_MAXHOST]; /* getnameinfo() */
126 char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
127
128 int file(char *);
129 void getsocket(void);
130 int set(int, char **);
131 void get(char *);
132 int delete(char *);
133 void dump(struct in6_addr *);
134 static struct in6_nbrinfo *getnbrinfo(struct in6_addr *addr,
135 int ifindex, int);
136 static char *ether_str(struct sockaddr_dl *);
137 int ndp_ether_aton(char *, u_char *);
138 void usage(void);
139 int rtmsg(int);
140 void ifinfo(int, char **);
141 void rtrlist(void);
142 void plist(void);
143 void pfx_flush(void);
144 void rtrlist(void);
145 void rtr_flush(void);
146 void harmonize_rtr(void);
147 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
148 static void getdefif(void);
149 static void setdefif(char *);
150 #endif
151 static char *sec2str(time_t t);
152 static char *ether_str(struct sockaddr_dl *sdl);
153 static void ts_print(const struct timespec *);
154
155 static char *rtpref_str[] = {
156 "medium", /* 00 */
157 "high", /* 01 */
158 "rsv", /* 10 */
159 "low" /* 11 */
160 };
161
162 int
163 main(int argc, char **argv)
164 {
165 int ch;
166 int aflag = 0, dflag = 0, sflag = 0, Hflag = 0,
167 pflag = 0, rflag = 0, Pflag = 0, Rflag = 0;
168
169 pid = getpid();
170 thiszone = gmt2local(0);
171 while ((ch = getopt(argc, argv, "acndfIilprstA:HPR")) != -1)
172 switch ((char)ch) {
173 case 'a':
174 aflag = 1;
175 break;
176 case 'c':
177 cflag = 1;
178 break;
179 case 'd':
180 dflag = 1;
181 break;
182 case 'I':
183 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
184 if (argc > 2)
185 setdefif(argv[2]);
186 getdefif(); /* always call it to print the result */
187 exit(0);
188 #else
189 errx(1, "not supported yet");
190 /*NOTREACHED*/
191 #endif
192 case 'i' :
193 argc -= optind;
194 argv += optind;
195 if (argc < 1)
196 usage();
197 ifinfo(argc, argv);
198 exit(0);
199 case 'n':
200 nflag = 1;
201 continue;
202 case 'p':
203 pflag = 1;
204 break;
205 case 'f' :
206 if (argc != 3)
207 usage();
208 file(argv[2]);
209 exit(0);
210 case 'l' :
211 /* obsolete, ignored */
212 break;
213 case 'r' :
214 rflag = 1;
215 break;
216 case 's':
217 sflag = 1;
218 break;
219 case 't':
220 tflag = 1;
221 break;
222 case 'A':
223 aflag = 1;
224 repeat = atoi(optarg);
225 if (repeat < 0)
226 usage();
227 break;
228 case 'H' :
229 Hflag = 1;
230 break;
231 case 'P':
232 Pflag = 1;
233 break;
234 case 'R':
235 Rflag = 1;
236 break;
237 default:
238 usage();
239 }
240
241 argc -= optind;
242 argv += optind;
243
244 if (aflag || cflag) {
245 dump(0);
246 exit(0);
247 }
248 if (dflag) {
249 if (argc != 1)
250 usage();
251 delete(argv[0]);
252 exit(0);
253 }
254 if (pflag) {
255 plist();
256 exit(0);
257 }
258 if (rflag) {
259 rtrlist();
260 exit(0);
261 }
262 if (sflag) {
263 if (argc < 2 || argc > 4)
264 usage();
265 exit(set(argc, argv) ? 1 : 0);
266 }
267 if (Hflag) {
268 harmonize_rtr();
269 exit(0);
270 }
271 if (Pflag) {
272 pfx_flush();
273 exit(0);
274 }
275 if (Rflag) {
276 rtr_flush();
277 exit(0);
278 }
279
280 if (argc != 1)
281 usage();
282 get(argv[0]);
283 exit(0);
284 }
285
286 /*
287 * Process a file to set standard ndp entries
288 */
289 int
290 file(char *name)
291 {
292 FILE *fp;
293 int i, retval;
294 char line[100], arg[5][50], *args[5];
295
296 if ((fp = fopen(name, "r")) == NULL) {
297 fprintf(stderr, "ndp: cannot open %s\n", name);
298 exit(1);
299 }
300 args[0] = &arg[0][0];
301 args[1] = &arg[1][0];
302 args[2] = &arg[2][0];
303 args[3] = &arg[3][0];
304 args[4] = &arg[4][0];
305 retval = 0;
306 while(fgets(line, 100, fp) != NULL) {
307 i = sscanf(line, "%s %s %s %s %s", arg[0], arg[1], arg[2],
308 arg[3], arg[4]);
309 if (i < 2) {
310 fprintf(stderr, "ndp: bad line: %s\n", line);
311 retval = 1;
312 continue;
313 }
314 if (set(i, args))
315 retval = 1;
316 }
317 fclose(fp);
318 return (retval);
319 }
320
321 void
322 getsocket(void)
323 {
324 if (s < 0) {
325 s = socket(PF_ROUTE, SOCK_RAW, 0);
326 if (s < 0) {
327 perror("ndp: socket");
328 exit(1);
329 }
330 }
331 }
332
333 struct sockaddr_in6 so_mask = {sizeof(so_mask), AF_INET6 };
334 struct sockaddr_in6 blank_sin = {sizeof(blank_sin), AF_INET6 }, sin_m;
335 struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m;
336 int flags, found_entry;
337 time_t expire_time;
338 struct {
339 struct rt_msghdr m_rtm;
340 char m_space[512];
341 } m_rtmsg;
342
343 /*
344 * Set an individual neighbor cache entry
345 */
346 int
347 set(int argc, char **argv)
348 {
349 struct sockaddr_in6 *sin = &sin_m;
350 struct sockaddr_dl *sdl;
351 struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
352 struct addrinfo hints, *res;
353 int gai_error;
354 u_char *ea;
355 char *host = argv[0], *eaddr = argv[1];
356
357 getsocket();
358 argc -= 2;
359 argv += 2;
360 sdl_m = blank_sdl;
361 sin_m = blank_sin;
362
363 bzero(&hints, sizeof(hints));
364 hints.ai_family = AF_INET6;
365 gai_error = getaddrinfo(host, NULL, &hints, &res);
366 if (gai_error) {
367 fprintf(stderr, "ndp: %s: %s\n", host,
368 gai_strerror(gai_error));
369 return 1;
370 }
371 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
372 #ifdef __KAME__
373 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
374 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
375 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
376 }
377 #endif
378 ea = (u_char *)LLADDR(&sdl_m);
379 if (ndp_ether_aton(eaddr, ea) == 0)
380 sdl_m.sdl_alen = 6;
381 flags = 0;
382 expire_time = 0;
383 while (argc-- > 0) {
384 if (strncmp(argv[0], "temp", 4) == 0) {
385 struct timespec sp;
386
387 clock_gettime(CLOCK_MONOTONIC, &sp);
388 expire_time = sp.tv_sec + 20 * 60;
389 } else if (strncmp(argv[0], "proxy", 5) == 0)
390 flags |= RTF_ANNOUNCE;
391 argv++;
392 }
393 if (rtmsg(RTM_GET) < 0) {
394 perror(host);
395 return (1);
396 }
397 sin = (struct sockaddr_in6 *)(rtm + 1);
398 sdl = (struct sockaddr_dl *)(RT_ROUNDUP(sin->sin6_len) + (char *)sin);
399 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
400 if (sdl->sdl_family == AF_LINK &&
401 (rtm->rtm_flags & RTF_LLINFO) &&
402 !(rtm->rtm_flags & RTF_GATEWAY)) switch (sdl->sdl_type) {
403 case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
404 case IFT_ISO88024: case IFT_ISO88025:
405 goto overwrite;
406 }
407 /*
408 * IPv4 arp command retries with sin_other = SIN_PROXY here.
409 */
410 fprintf(stderr, "set: cannot configure a new entry\n");
411 return 1;
412 }
413
414 overwrite:
415 if (sdl->sdl_family != AF_LINK) {
416 printf("cannot intuit interface index and type for %s\n", host);
417 return (1);
418 }
419 sdl_m.sdl_type = sdl->sdl_type;
420 sdl_m.sdl_index = sdl->sdl_index;
421 return (rtmsg(RTM_ADD));
422 }
423
424 /*
425 * Display an individual neighbor cache entry
426 */
427 void
428 get(char *host)
429 {
430 struct sockaddr_in6 *sin = &sin_m;
431 struct addrinfo hints, *res;
432 int gai_error;
433
434 sin_m = blank_sin;
435 bzero(&hints, sizeof(hints));
436 hints.ai_family = AF_INET6;
437 gai_error = getaddrinfo(host, NULL, &hints, &res);
438 if (gai_error) {
439 fprintf(stderr, "ndp: %s: %s\n", host,
440 gai_strerror(gai_error));
441 return;
442 }
443 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
444 #ifdef __KAME__
445 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
446 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
447 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
448 }
449 #endif
450 dump(&sin->sin6_addr);
451 if (found_entry == 0) {
452 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
453 sizeof(host_buf), NULL ,0,
454 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
455 printf("%s (%s) -- no entry\n", host, host_buf);
456 exit(1);
457 }
458 }
459
460 /*
461 * Delete a neighbor cache entry
462 */
463 int
464 delete(char *host)
465 {
466 struct sockaddr_in6 *sin = &sin_m;
467 struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
468 struct sockaddr_dl *sdl;
469 struct addrinfo hints, *res;
470 int gai_error;
471
472 getsocket();
473 sin_m = blank_sin;
474
475 bzero(&hints, sizeof(hints));
476 hints.ai_family = AF_INET6;
477 gai_error = getaddrinfo(host, NULL, &hints, &res);
478 if (gai_error) {
479 fprintf(stderr, "ndp: %s: %s\n", host,
480 gai_strerror(gai_error));
481 return 1;
482 }
483 sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
484 #ifdef __KAME__
485 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
486 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] =
487 htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id);
488 }
489 #endif
490 if (rtmsg(RTM_GET) < 0) {
491 perror(host);
492 return (1);
493 }
494 sin = (struct sockaddr_in6 *)(rtm + 1);
495 sdl = (struct sockaddr_dl *)(RT_ROUNDUP(sin->sin6_len) + (char *)sin);
496 if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) {
497 if (sdl->sdl_family == AF_LINK &&
498 (rtm->rtm_flags & RTF_LLINFO) &&
499 !(rtm->rtm_flags & RTF_GATEWAY)) {
500 goto delete;
501 }
502 /*
503 * IPv4 arp command retries with sin_other = SIN_PROXY here.
504 */
505 fprintf(stderr, "delete: cannot delete non-NDP entry\n");
506 return 1;
507 }
508
509 delete:
510 if (sdl->sdl_family != AF_LINK) {
511 printf("cannot locate %s\n", host);
512 return (1);
513 }
514 if (rtmsg(RTM_DELETE) == 0) {
515 struct sockaddr_in6 s6 = *sin; /* XXX: for safety */
516
517 #ifdef __KAME__
518 if (IN6_IS_ADDR_LINKLOCAL(&s6.sin6_addr)) {
519 s6.sin6_scope_id = ntohs(*(u_int16_t *)&s6.sin6_addr.s6_addr[2]);
520 *(u_int16_t *)&s6.sin6_addr.s6_addr[2] = 0;
521 }
522 #endif
523 getnameinfo((struct sockaddr *)&s6,
524 s6.sin6_len, host_buf,
525 sizeof(host_buf), NULL, 0,
526 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
527 printf("%s (%s) deleted\n", host, host_buf);
528 }
529
530 return 0;
531 }
532
533 #define W_ADDR 31
534 #define W_LL 17
535 #define W_IF 6
536
537 /*
538 * Dump the entire neighbor cache
539 */
540 void
541 dump(struct in6_addr *addr)
542 {
543 int mib[6];
544 size_t needed;
545 char *lim, *buf, *next;
546 struct rt_msghdr *rtm;
547 struct sockaddr_in6 *sin;
548 struct sockaddr_dl *sdl;
549 extern int h_errno;
550 struct in6_nbrinfo *nbi;
551 struct timespec sp;
552 int addrwidth;
553 int llwidth;
554 int ifwidth;
555 char flgbuf[8];
556 char *ifname;
557
558 /* Print header */
559 if (!tflag && !cflag)
560 printf("%-*.*s %-*.*s %*.*s %-9.9s %2s %4s %4s\n",
561 W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
562 W_IF, W_IF, "Netif", "Expire", "St", "Flgs", "Prbs");
563
564 again:;
565 mib[0] = CTL_NET;
566 mib[1] = PF_ROUTE;
567 mib[2] = 0;
568 mib[3] = AF_INET6;
569 mib[4] = NET_RT_FLAGS;
570 mib[5] = RTF_LLINFO;
571 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
572 err(1, "sysctl(PF_ROUTE estimate)");
573 if (needed > 0) {
574 if ((buf = malloc(needed)) == NULL)
575 errx(1, "malloc");
576 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
577 err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)");
578 lim = buf + needed;
579 } else
580 buf = lim = NULL;
581
582 for (next = buf; next && next < lim; next += rtm->rtm_msglen) {
583 int isrouter = 0, prbs = 0;
584
585 rtm = (struct rt_msghdr *)next;
586 sin = (struct sockaddr_in6 *)(rtm + 1);
587 sdl = (struct sockaddr_dl *)((char *)sin +
588 RT_ROUNDUP(sin->sin6_len));
589
590 /*
591 * Some OSes can produce a route that has the LINK flag but
592 * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD
593 * and BSD/OS, where xx is not the interface identifier on
594 * lo0). Such routes entry would annoy getnbrinfo() below,
595 * so we skip them.
596 * XXX: such routes should have the GATEWAY flag, not the
597 * LINK flag. However, there are rotten routing software
598 * that advertises all routes that have the GATEWAY flag.
599 * Thus, KAME kernel intentionally does not set the LINK flag.
600 * What is to be fixed is not ndp, but such routing software
601 * (and the kernel workaround)...
602 */
603 if (sdl->sdl_family != AF_LINK)
604 continue;
605
606 if (addr) {
607 if (!IN6_ARE_ADDR_EQUAL(addr, &sin->sin6_addr))
608 continue;
609 found_entry = 1;
610 } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr))
611 continue;
612 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) ||
613 IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) {
614 /* XXX: should scope id be filled in the kernel? */
615 if (sin->sin6_scope_id == 0)
616 sin->sin6_scope_id = sdl->sdl_index;
617 #ifdef __KAME__
618 /* KAME specific hack; removed the embedded id */
619 *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = 0;
620 #endif
621 }
622 getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
623 sizeof(host_buf), NULL, 0,
624 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
625 if (cflag == 1) {
626 #ifdef RTF_WASCLONED
627 if (rtm->rtm_flags & RTF_WASCLONED)
628 delete(host_buf);
629 #else
630 delete(host_buf);
631 #endif
632 continue;
633 }
634 clock_gettime(CLOCK_MONOTONIC, &sp);
635 if (tflag)
636 ts_print(&sp);
637
638 addrwidth = strlen(host_buf);
639 if (addrwidth < W_ADDR)
640 addrwidth = W_ADDR;
641 llwidth = strlen(ether_str(sdl));
642 if (W_ADDR + W_LL - addrwidth > llwidth)
643 llwidth = W_ADDR + W_LL - addrwidth;
644 ifname = if_indextoname(sdl->sdl_index, ifix_buf);
645 if (!ifname)
646 ifname = "?";
647 ifwidth = strlen(ifname);
648 if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth)
649 ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth;
650
651 printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf,
652 llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname);
653
654 /* Print neighbor discovery specific informations */
655 nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1);
656 if (nbi) {
657 if (nbi->expire > sp.tv_sec) {
658 printf(" %-9.9s",
659 sec2str(nbi->expire - sp.tv_sec));
660 } else if (nbi->expire == 0)
661 printf(" %-9.9s", "permanent");
662 else
663 printf(" %-9.9s", "expired");
664
665 switch(nbi->state) {
666 case ND6_LLINFO_NOSTATE:
667 printf(" N");
668 break;
669 #ifdef ND6_LLINFO_WAITDELETE
670 case ND6_LLINFO_WAITDELETE:
671 printf(" W");
672 break;
673 #endif
674 case ND6_LLINFO_INCOMPLETE:
675 printf(" I");
676 break;
677 case ND6_LLINFO_REACHABLE:
678 printf(" R");
679 break;
680 case ND6_LLINFO_STALE:
681 printf(" S");
682 break;
683 case ND6_LLINFO_DELAY:
684 printf(" D");
685 break;
686 case ND6_LLINFO_PROBE:
687 printf(" P");
688 break;
689 default:
690 printf(" ?");
691 break;
692 }
693
694 isrouter = nbi->isrouter;
695 prbs = nbi->asked;
696 } else {
697 warnx("failed to get neighbor information");
698 printf(" ");
699 }
700 putchar(' ');
701
702 /*
703 * other flags. R: router, P: proxy, W: ??
704 */
705 if ((rtm->rtm_addrs & RTA_NETMASK) == 0) {
706 snprintf(flgbuf, sizeof(flgbuf), "%s%s",
707 isrouter ? "R" : "",
708 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
709 } else {
710 sin = (struct sockaddr_in6 *)
711 (sdl->sdl_len + (char *)sdl);
712 snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s",
713 isrouter ? "R" : "",
714 !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr)
715 ? "P" : "",
716 (sin->sin6_len != sizeof(struct sockaddr_in6))
717 ? "W" : "",
718 (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : "");
719 }
720 printf(" %-4.4s", flgbuf);
721
722 if (prbs)
723 printf(" %4d", prbs);
724
725 printf("\n");
726 }
727 if (buf != NULL)
728 free(buf);
729
730 if (repeat) {
731 printf("\n");
732 sleep(repeat);
733 goto again;
734 }
735 }
736
737 static struct in6_nbrinfo *
738 getnbrinfo(struct in6_addr *addr, int ifindex, int warning)
739 {
740 static struct in6_nbrinfo nbi;
741 int s;
742
743 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
744 err(1, "socket");
745
746 bzero(&nbi, sizeof(nbi));
747 if_indextoname(ifindex, nbi.ifname);
748 nbi.addr = *addr;
749 if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
750 if (warning)
751 warn("ioctl(SIOCGNBRINFO_IN6)");
752 close(s);
753 return(NULL);
754 }
755
756 close(s);
757 return(&nbi);
758 }
759
760 static char *
761 ether_str(struct sockaddr_dl *sdl)
762 {
763 static char ebuf[32];
764 u_char *cp;
765
766 if (sdl->sdl_alen) {
767 cp = (u_char *)LLADDR(sdl);
768 sprintf(ebuf, "%x:%x:%x:%x:%x:%x",
769 cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
770 } else {
771 sprintf(ebuf, "(incomplete)");
772 }
773
774 return(ebuf);
775 }
776
777 int
778 ndp_ether_aton(char *a, u_char *n)
779 {
780 int i, o[6];
781
782 i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2],
783 &o[3], &o[4], &o[5]);
784 if (i != 6) {
785 fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a);
786 return (1);
787 }
788 for (i=0; i<6; i++)
789 n[i] = o[i];
790 return (0);
791 }
792
793 void
794 usage(void)
795 {
796 printf("usage: ndp hostname\n");
797 printf(" ndp -a[nt]\n");
798 printf(" ndp [-nt] -A wait\n");
799 printf(" ndp -c[nt]\n");
800 printf(" ndp -d[nt] hostname\n");
801 printf(" ndp -f[nt] filename\n");
802 printf(" ndp -i interface [flags...]\n");
803 #ifdef SIOCSDEFIFACE_IN6
804 printf(" ndp -I [interface|delete]\n");
805 #endif
806 printf(" ndp -p\n");
807 printf(" ndp -r\n");
808 printf(" ndp -s hostname ether_addr [temp] [proxy]\n");
809 printf(" ndp -H\n");
810 printf(" ndp -P\n");
811 printf(" ndp -R\n");
812 exit(1);
813 }
814
815 int
816 rtmsg(int cmd)
817 {
818 static int seq;
819 int rlen;
820 struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
821 char *cp = m_rtmsg.m_space;
822 int l;
823
824 errno = 0;
825 if (cmd == RTM_DELETE)
826 goto doit;
827 bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
828 rtm->rtm_flags = flags;
829 rtm->rtm_version = RTM_VERSION;
830
831 switch (cmd) {
832 default:
833 fprintf(stderr, "ndp: internal wrong cmd\n");
834 exit(1);
835 case RTM_ADD:
836 rtm->rtm_addrs |= RTA_GATEWAY;
837 rtm->rtm_rmx.rmx_expire = expire_time;
838 rtm->rtm_inits = RTV_EXPIRE;
839 rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
840 if (rtm->rtm_flags & RTF_ANNOUNCE) {
841 rtm->rtm_flags &= ~RTF_HOST;
842 rtm->rtm_flags |= RTA_NETMASK;
843 }
844 /* FALLTHROUGH */
845 case RTM_GET:
846 rtm->rtm_addrs |= RTA_DST;
847 }
848 #define NEXTADDR(w, s) \
849 if (rtm->rtm_addrs & (w)) { \
850 bcopy((char *)&s, cp, sizeof(s)); cp += sizeof(s);}
851
852 NEXTADDR(RTA_DST, sin_m);
853 NEXTADDR(RTA_GATEWAY, sdl_m);
854 memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
855 NEXTADDR(RTA_NETMASK, so_mask);
856
857 rtm->rtm_msglen = cp - (char *)&m_rtmsg;
858 doit:
859 l = rtm->rtm_msglen;
860 rtm->rtm_seq = ++seq;
861 rtm->rtm_type = cmd;
862 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
863 if (errno != ESRCH || cmd != RTM_DELETE) {
864 perror("writing to routing socket");
865 return (-1);
866 }
867 }
868 do {
869 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
870 } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
871 if (l < 0)
872 fprintf(stderr, "ndp: read from routing socket: %s\n",
873 strerror(errno));
874 return (0);
875 }
876
877 void
878 ifinfo(int argc, char **argv)
879 {
880 struct in6_ndireq nd;
881 int i, s;
882 char *ifname = argv[0];
883 u_int32_t newflags;
884 #ifdef IPV6CTL_USETEMPADDR
885 u_int8_t nullbuf[8];
886 #endif
887
888 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
889 perror("ndp: socket");
890 exit(1);
891 }
892 bzero(&nd, sizeof(nd));
893 strcpy(nd.ifname, ifname);
894 if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
895 perror("ioctl (SIOCGIFINFO_IN6)");
896 exit(1);
897 }
898 #define ND nd.ndi
899 newflags = ND.flags;
900 for (i = 1; i < argc; i++) {
901 int clear = 0;
902 char *cp = argv[i];
903
904 if (*cp == '-') {
905 clear = 1;
906 cp++;
907 }
908
909 #define SETFLAG(s, f) \
910 do {\
911 if (strcmp(cp, (s)) == 0) {\
912 if (clear)\
913 newflags &= ~(f);\
914 else\
915 newflags |= (f);\
916 }\
917 } while (0)
918 SETFLAG("nud", ND6_IFF_PERFORMNUD);
919 #ifdef ND6_IFF_ACCEPT_RTADV
920 SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV);
921 #endif
922 ND.flags = newflags;
923 if (ioctl(s, SIOCSIFINFO_FLAGS, (caddr_t)&nd) < 0) {
924 perror("ioctl(SIOCSIFINFO_FLAGS)");
925 exit(1);
926 }
927 #undef SETFLAG
928 }
929
930 printf("linkmtu=%d", ND.linkmtu);
931 printf(", curhlim=%d", ND.chlim);
932 printf(", basereachable=%ds%dms",
933 ND.basereachable / 1000, ND.basereachable % 1000);
934 printf(", reachable=%ds", ND.reachable);
935 printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
936 #ifdef IPV6CTL_USETEMPADDR
937 memset(nullbuf, 0, sizeof(nullbuf));
938 if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) {
939 int j;
940 u_int8_t *rbuf;
941
942 for (i = 0; i < 3; i++) {
943 switch(i) {
944 case 0:
945 printf("\nRandom seed(0): ");
946 rbuf = ND.randomseed0;
947 break;
948 case 1:
949 printf("\nRandom seed(1): ");
950 rbuf = ND.randomseed1;
951 break;
952 case 2:
953 printf("\nRandom ID: ");
954 rbuf = ND.randomid;
955 break;
956 }
957 for (j = 0; j < 8; j++)
958 printf("%02x", rbuf[j]);
959 }
960 }
961 #endif
962 if (ND.flags) {
963 printf("\nFlags: ");
964 if ((ND.flags & ND6_IFF_PERFORMNUD))
965 printf("nud ");
966 #ifdef ND6_IFF_ACCEPT_RTADV
967 if ((ND.flags & ND6_IFF_ACCEPT_RTADV))
968 printf("accept_rtadv ");
969 #endif
970 }
971 putc('\n', stdout);
972 #undef ND
973
974 close(s);
975 }
976
977 #ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */
978 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
979 #endif
980
981 void
982 rtrlist(void)
983 {
984 #ifdef ICMPV6CTL_ND6_DRLIST
985 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST };
986 char *buf;
987 struct in6_defrouter *p, *ep;
988 size_t l;
989 struct timeval time;
990
991 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
992 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
993 /*NOTREACHED*/
994 }
995 buf = malloc(l);
996 if (!buf) {
997 errx(1, "not enough core");
998 /*NOTREACHED*/
999 }
1000 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1001 err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
1002 /*NOTREACHED*/
1003 }
1004
1005 ep = (struct in6_defrouter *)(buf + l);
1006 for (p = (struct in6_defrouter *)buf; p < ep; p++) {
1007 int rtpref;
1008
1009 if (getnameinfo((struct sockaddr *)&p->rtaddr,
1010 p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0,
1011 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0)) != 0)
1012 strlcpy(host_buf, "?", sizeof(host_buf));
1013
1014 printf("%s if=%s", host_buf,
1015 if_indextoname(p->if_index, ifix_buf));
1016 printf(", flags=%s%s",
1017 p->flags & ND_RA_FLAG_MANAGED ? "M" : "",
1018 p->flags & ND_RA_FLAG_OTHER ? "O" : "");
1019 rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
1020 printf(", pref=%s", rtpref_str[rtpref]);
1021
1022 gettimeofday(&time, 0);
1023 if (p->expire == 0)
1024 printf(", expire=Never\n");
1025 else
1026 printf(", expire=%s\n",
1027 sec2str(p->expire - time.tv_sec));
1028 }
1029 free(buf);
1030 #else
1031 struct in6_drlist dr;
1032 int s, i;
1033 struct timeval time;
1034
1035 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1036 perror("ndp: socket");
1037 exit(1);
1038 }
1039 bzero(&dr, sizeof(dr));
1040 strcpy(dr.ifname, "lo0"); /* dummy */
1041 if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
1042 perror("ioctl (SIOCGDRLST_IN6)");
1043 exit(1);
1044 }
1045 #define DR dr.defrouter[i]
1046 for (i = 0 ; i < DRLSTSIZ && DR.if_index ; i++) {
1047 struct sockaddr_in6 sin6;
1048
1049 bzero(&sin6, sizeof(sin6));
1050 sin6.sin6_family = AF_INET6;
1051 sin6.sin6_len = sizeof(sin6);
1052 sin6.sin6_addr = DR.rtaddr;
1053 getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, host_buf,
1054 sizeof(host_buf), NULL, 0,
1055 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
1056
1057 printf("%s if=%s", host_buf,
1058 if_indextoname(DR.if_index, ifix_buf));
1059 printf(", flags=%s%s",
1060 DR.flags & ND_RA_FLAG_MANAGED ? "M" : "",
1061 DR.flags & ND_RA_FLAG_OTHER ? "O" : "");
1062 gettimeofday(&time, 0);
1063 if (DR.expire == 0)
1064 printf(", expire=Never\n");
1065 else
1066 printf(", expire=%s\n",
1067 sec2str(DR.expire - time.tv_sec));
1068 }
1069 #undef DR
1070 close(s);
1071 #endif
1072 }
1073
1074 void
1075 plist(void)
1076 {
1077 #ifdef ICMPV6CTL_ND6_PRLIST
1078 int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
1079 char *buf;
1080 struct in6_prefix *p, *ep, *n;
1081 struct sockaddr_in6 *advrtr;
1082 size_t l;
1083 struct timeval time;
1084 #ifdef NI_WITHSCOPEID
1085 const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
1086 int ninflags = (nflag ? NI_NUMERICHOST : 0) | NI_WITHSCOPEID;
1087 #else
1088 const int niflags = NI_NUMERICHOST;
1089 int ninflags = nflag ? NI_NUMERICHOST : 0;
1090 #endif
1091 char namebuf[NI_MAXHOST];
1092
1093 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
1094 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1095 /*NOTREACHED*/
1096 }
1097 buf = malloc(l);
1098 if (!buf) {
1099 errx(1, "not enough core");
1100 /*NOTREACHED*/
1101 }
1102 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
1103 err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
1104 /*NOTREACHED*/
1105 }
1106
1107 ep = (struct in6_prefix *)(buf + l);
1108 for (p = (struct in6_prefix *)buf; p < ep; p = n) {
1109 advrtr = (struct sockaddr_in6 *)(p + 1);
1110 n = (struct in6_prefix *)&advrtr[p->advrtrs];
1111
1112 if (getnameinfo((struct sockaddr *)&p->prefix,
1113 p->prefix.sin6_len, namebuf, sizeof(namebuf),
1114 NULL, 0, niflags) != 0)
1115 strlcpy(namebuf, "?", sizeof(namebuf));
1116 printf("%s/%d if=%s\n", namebuf, p->prefixlen,
1117 if_indextoname(p->if_index, ifix_buf));
1118
1119 gettimeofday(&time, 0);
1120 /*
1121 * meaning of fields, especially flags, is very different
1122 * by origin. notify the difference to the users.
1123 */
1124 printf("flags=%s%s%s%s%s",
1125 p->raflags.onlink ? "L" : "",
1126 p->raflags.autonomous ? "A" : "",
1127 (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
1128 (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
1129 #ifdef NDPRF_HOME
1130 (p->flags & NDPRF_HOME) != 0 ? "H" : ""
1131 #else
1132 ""
1133 #endif
1134 );
1135 if (p->vltime == ND6_INFINITE_LIFETIME)
1136 printf(" vltime=infinity");
1137 else
1138 printf(" vltime=%ld", (long)p->vltime);
1139 if (p->pltime == ND6_INFINITE_LIFETIME)
1140 printf(", pltime=infinity");
1141 else
1142 printf(", pltime=%ld", (long)p->pltime);
1143 if (p->expire == 0)
1144 printf(", expire=Never");
1145 else if (p->expire >= time.tv_sec)
1146 printf(", expire=%s",
1147 sec2str(p->expire - time.tv_sec));
1148 else
1149 printf(", expired");
1150 printf(", ref=%d", p->refcnt);
1151 printf("\n");
1152 /*
1153 * "advertising router" list is meaningful only if the prefix
1154 * information is from RA.
1155 */
1156 if (p->advrtrs) {
1157 int j;
1158 struct sockaddr_in6 *sin6;
1159
1160 sin6 = (struct sockaddr_in6 *)(p + 1);
1161 printf(" advertised by\n");
1162 for (j = 0; j < p->advrtrs; j++) {
1163 struct in6_nbrinfo *nbi;
1164
1165 if (getnameinfo((struct sockaddr *)sin6,
1166 sin6->sin6_len, namebuf, sizeof(namebuf),
1167 NULL, 0, ninflags) != 0)
1168 strlcpy(namebuf, "?", sizeof(namebuf));
1169 printf(" %s", namebuf);
1170
1171 nbi = getnbrinfo(&sin6->sin6_addr, p->if_index,
1172 0);
1173 if (nbi) {
1174 switch(nbi->state) {
1175 case ND6_LLINFO_REACHABLE:
1176 case ND6_LLINFO_STALE:
1177 case ND6_LLINFO_DELAY:
1178 case ND6_LLINFO_PROBE:
1179 printf(" (reachable)\n");
1180 break;
1181 default:
1182 printf(" (unreachable)\n");
1183 }
1184 } else
1185 printf(" (no neighbor state)\n");
1186 sin6++;
1187 }
1188 } else
1189 printf(" No advertising router\n");
1190 }
1191 free(buf);
1192 #else
1193 struct in6_prlist pr;
1194 int s, i;
1195 struct timeval time;
1196
1197 gettimeofday(&time, 0);
1198
1199 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1200 perror("ndp: socket");
1201 exit(1);
1202 }
1203 bzero(&pr, sizeof(pr));
1204 strcpy(pr.ifname, "lo0"); /* dummy */
1205 if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
1206 perror("ioctl (SIOCGPRLST_IN6)");
1207 exit(1);
1208 }
1209 #define PR pr.prefix[i]
1210 for (i = 0; i < PRLSTSIZ && PR.if_index ; i++) {
1211 struct sockaddr_in6 p6;
1212 char namebuf[NI_MAXHOST];
1213 int niflags;
1214
1215 #ifdef NDPRF_ONLINK
1216 p6 = PR.prefix;
1217 #else
1218 memset(&p6, 0, sizeof(p6));
1219 p6.sin6_family = AF_INET6;
1220 p6.sin6_len = sizeof(p6);
1221 p6.sin6_addr = PR.prefix;
1222 #endif
1223
1224 /*
1225 * copy link index to sin6_scope_id field.
1226 * XXX: KAME specific.
1227 */
1228 if (IN6_IS_ADDR_LINKLOCAL(&p6.sin6_addr)) {
1229 u_int16_t linkid;
1230
1231 memcpy(&linkid, &p6.sin6_addr.s6_addr[2],
1232 sizeof(linkid));
1233 linkid = ntohs(linkid);
1234 p6.sin6_scope_id = linkid;
1235 p6.sin6_addr.s6_addr[2] = 0;
1236 p6.sin6_addr.s6_addr[3] = 0;
1237 }
1238
1239 niflags = NI_NUMERICHOST;
1240 #ifdef __KAME__
1241 niflags |= NI_WITHSCOPEID;
1242 #endif
1243 if (getnameinfo((struct sockaddr *)&p6,
1244 sizeof(p6), namebuf, sizeof(namebuf),
1245 NULL, 0, niflags)) {
1246 warnx("getnameinfo failed");
1247 continue;
1248 }
1249 printf("%s/%d if=%s\n", namebuf, PR.prefixlen,
1250 if_indextoname(PR.if_index, ifix_buf));
1251
1252 gettimeofday(&time, 0);
1253 /*
1254 * meaning of fields, especially flags, is very different
1255 * by origin. notify the difference to the users.
1256 */
1257 #if 0
1258 printf(" %s",
1259 PR.origin == PR_ORIG_RA ? "" : "advertise: ");
1260 #endif
1261 #ifdef NDPRF_ONLINK
1262 printf("flags=%s%s%s%s%s",
1263 PR.raflags.onlink ? "L" : "",
1264 PR.raflags.autonomous ? "A" : "",
1265 (PR.flags & NDPRF_ONLINK) != 0 ? "O" : "",
1266 (PR.flags & NDPRF_DETACHED) != 0 ? "D" : "",
1267 #ifdef NDPRF_HOME
1268 (PR.flags & NDPRF_HOME) != 0 ? "H" : ""
1269 #else
1270 ""
1271 #endif
1272 );
1273 #else
1274 printf("flags=%s%s",
1275 PR.raflags.onlink ? "L" : "",
1276 PR.raflags.autonomous ? "A" : "");
1277 #endif
1278 if (PR.vltime == ND6_INFINITE_LIFETIME)
1279 printf(" vltime=infinity");
1280 else
1281 printf(" vltime=%ld", (long)PR.vltime);
1282 if (PR.pltime == ND6_INFINITE_LIFETIME)
1283 printf(", pltime=infinity");
1284 else
1285 printf(", pltime=%ld", (long)PR.pltime);
1286 if (PR.expire == 0)
1287 printf(", expire=Never");
1288 else if (PR.expire >= time.tv_sec)
1289 printf(", expire=%s",
1290 sec2str(PR.expire - time.tv_sec));
1291 else
1292 printf(", expired");
1293 #ifdef NDPRF_ONLINK
1294 printf(", ref=%d", PR.refcnt);
1295 #endif
1296 #if 0
1297 switch (PR.origin) {
1298 case PR_ORIG_RA:
1299 printf(", origin=RA");
1300 break;
1301 case PR_ORIG_RR:
1302 printf(", origin=RR");
1303 break;
1304 case PR_ORIG_STATIC:
1305 printf(", origin=static");
1306 break;
1307 case PR_ORIG_KERNEL:
1308 printf(", origin=kernel");
1309 break;
1310 default:
1311 printf(", origin=?");
1312 break;
1313 }
1314 #endif
1315 printf("\n");
1316 /*
1317 * "advertising router" list is meaningful only if the prefix
1318 * information is from RA.
1319 */
1320 if (0 && /* prefix origin is almost obsolted */
1321 PR.origin != PR_ORIG_RA)
1322 ;
1323 else if (PR.advrtrs) {
1324 int j;
1325 printf(" advertised by\n");
1326 for (j = 0; j < PR.advrtrs; j++) {
1327 struct sockaddr_in6 sin6;
1328 struct in6_nbrinfo *nbi;
1329
1330 bzero(&sin6, sizeof(sin6));
1331 sin6.sin6_family = AF_INET6;
1332 sin6.sin6_len = sizeof(sin6);
1333 sin6.sin6_addr = PR.advrtr[j];
1334 sin6.sin6_scope_id = PR.if_index; /* XXX */
1335 getnameinfo((struct sockaddr *)&sin6,
1336 sin6.sin6_len, host_buf,
1337 sizeof(host_buf), NULL, 0,
1338 NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
1339 printf(" %s", host_buf);
1340
1341 nbi = getnbrinfo(&sin6.sin6_addr, PR.if_index,
1342 0);
1343 if (nbi) {
1344 switch(nbi->state) {
1345 case ND6_LLINFO_REACHABLE:
1346 case ND6_LLINFO_STALE:
1347 case ND6_LLINFO_DELAY:
1348 case ND6_LLINFO_PROBE:
1349 printf(" (reachable)\n");
1350 break;
1351 default:
1352 printf(" (unreachable)\n");
1353 }
1354 } else
1355 printf(" (no neighbor state)\n");
1356 }
1357 if (PR.advrtrs > DRLSTSIZ)
1358 printf(" and %d routers\n",
1359 PR.advrtrs - DRLSTSIZ);
1360 } else
1361 printf(" No advertising router\n");
1362 }
1363 #undef PR
1364 close(s);
1365 #endif
1366 }
1367
1368 void
1369 pfx_flush(void)
1370 {
1371 char dummyif[IFNAMSIZ+8];
1372 int s;
1373
1374 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1375 err(1, "socket");
1376 strcpy(dummyif, "lo0"); /* dummy */
1377 if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
1378 err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
1379 }
1380
1381 void
1382 rtr_flush(void)
1383 {
1384 char dummyif[IFNAMSIZ+8];
1385 int s;
1386
1387 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1388 err(1, "socket");
1389 strcpy(dummyif, "lo0"); /* dummy */
1390 if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
1391 err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
1392
1393 close(s);
1394 }
1395
1396 void
1397 harmonize_rtr(void)
1398 {
1399 char dummyif[IFNAMSIZ+8];
1400 int s;
1401
1402 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1403 err(1, "socket");
1404 strcpy(dummyif, "lo0"); /* dummy */
1405 if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
1406 err(1, "ioctl (SIOCSNDFLUSH_IN6)");
1407
1408 close(s);
1409 }
1410
1411 #ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
1412 static void
1413 setdefif(char *ifname)
1414 {
1415 struct in6_ndifreq ndifreq;
1416 unsigned int ifindex;
1417
1418 if (strcasecmp(ifname, "delete") == 0)
1419 ifindex = 0;
1420 else {
1421 if ((ifindex = if_nametoindex(ifname)) == 0)
1422 err(1, "failed to resolve i/f index for %s", ifname);
1423 }
1424
1425 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1426 err(1, "socket");
1427
1428 strcpy(ndifreq.ifname, "lo0"); /* dummy */
1429 ndifreq.ifindex = ifindex;
1430
1431 if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1432 err(1, "ioctl (SIOCSDEFIFACE_IN6)");
1433
1434 close(s);
1435 }
1436
1437 static void
1438 getdefif(void)
1439 {
1440 struct in6_ndifreq ndifreq;
1441 char ifname[IFNAMSIZ+8];
1442
1443 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
1444 err(1, "socket");
1445
1446 memset(&ndifreq, 0, sizeof(ndifreq));
1447 strcpy(ndifreq.ifname, "lo0"); /* dummy */
1448
1449 if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
1450 err(1, "ioctl (SIOCGDEFIFACE_IN6)");
1451
1452 if (ndifreq.ifindex == 0)
1453 printf("No default interface.\n");
1454 else {
1455 if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL)
1456 err(1, "failed to resolve ifname for index %lu",
1457 ndifreq.ifindex);
1458 printf("ND default interface = %s\n", ifname);
1459 }
1460
1461 close(s);
1462 }
1463 #endif
1464
1465 static char *
1466 sec2str(time_t total)
1467 {
1468 static char result[256];
1469 int days, hours, mins, secs;
1470 int first = 1;
1471 char *p = result;
1472
1473 days = total / 3600 / 24;
1474 hours = (total / 3600) % 24;
1475 mins = (total / 60) % 60;
1476 secs = total % 60;
1477
1478 if (days) {
1479 first = 0;
1480 p += sprintf(p, "%dd", days);
1481 }
1482 if (!first || hours) {
1483 first = 0;
1484 p += sprintf(p, "%dh", hours);
1485 }
1486 if (!first || mins) {
1487 first = 0;
1488 p += sprintf(p, "%dm", mins);
1489 }
1490 sprintf(p, "%ds", secs);
1491
1492 return(result);
1493 }
1494
1495 /*
1496 * Print the timestamp
1497 * from tcpdump/util.c
1498 */
1499 static void
1500 ts_print(const struct timespec *sp)
1501 {
1502 int s;
1503
1504 /* Default */
1505 s = (sp->tv_sec + thiszone) % 86400;
1506 printf("%02d:%02d:%02d.%06u ",
1507 s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)(sp->tv_nsec / 1000));
1508 }
DragonFly BSD