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MFV r305100: Update amd from am-utils 6.1.5 to 6.2.
[FreeBSD/FreeBSD.git] / sys / netipsec / key_debug.c
1 /*      $FreeBSD$       */
2 /*      $KAME: key_debug.c,v 1.26 2001/06/27 10:46:50 sakane Exp $      */
3
4 /*-
5  * Copyright (C) 1995, 1996, 1997, and 1998 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 #ifdef _KERNEL
34 #include "opt_inet.h"
35 #include "opt_inet6.h"
36 #include "opt_ipsec.h"
37 #endif
38
39 #include <sys/param.h>
40 #ifdef _KERNEL
41 #include <sys/systm.h>
42 #include <sys/malloc.h>
43 #include <sys/mbuf.h>
44 #include <sys/queue.h>
45 #endif
46 #include <sys/socket.h>
47
48 #include <net/vnet.h>
49
50 #include <netipsec/key_var.h>
51 #include <netipsec/key_debug.h>
52
53 #include <netinet/in.h>
54 #include <netipsec/ipsec.h>
55 #ifdef _KERNEL
56 #include <netipsec/keydb.h>
57 #endif
58
59 #ifndef _KERNEL
60 #include <ctype.h>
61 #include <stdio.h>
62 #include <stdlib.h>
63 #endif /* !_KERNEL */
64
65 static void kdebug_sadb_prop(struct sadb_ext *);
66 static void kdebug_sadb_identity(struct sadb_ext *);
67 static void kdebug_sadb_supported(struct sadb_ext *);
68 static void kdebug_sadb_lifetime(struct sadb_ext *);
69 static void kdebug_sadb_sa(struct sadb_ext *);
70 static void kdebug_sadb_address(struct sadb_ext *);
71 static void kdebug_sadb_key(struct sadb_ext *);
72 static void kdebug_sadb_x_sa2(struct sadb_ext *);
73
74 #ifdef _KERNEL
75 static void kdebug_secreplay(struct secreplay *);
76 #endif
77
78 #ifndef _KERNEL
79 #define panic(fmt, ...) { printf(fmt, ## __VA_ARGS__); exit(-1); }
80 #endif
81
82 /* NOTE: host byte order */
83
84 /* %%%: about struct sadb_msg */
85 void
86 kdebug_sadb(struct sadb_msg *base)
87 {
88         struct sadb_ext *ext;
89         int tlen, extlen;
90
91         /* sanity check */
92         if (base == NULL)
93                 panic("%s: NULL pointer was passed.\n", __func__);
94
95         printf("sadb_msg{ version=%u type=%u errno=%u satype=%u\n",
96             base->sadb_msg_version, base->sadb_msg_type,
97             base->sadb_msg_errno, base->sadb_msg_satype);
98         printf("  len=%u reserved=%u seq=%u pid=%u\n",
99             base->sadb_msg_len, base->sadb_msg_reserved,
100             base->sadb_msg_seq, base->sadb_msg_pid);
101
102         tlen = PFKEY_UNUNIT64(base->sadb_msg_len) - sizeof(struct sadb_msg);
103         ext = (struct sadb_ext *)((caddr_t)base + sizeof(struct sadb_msg));
104
105         while (tlen > 0) {
106                 printf("sadb_ext{ len=%u type=%u }\n",
107                     ext->sadb_ext_len, ext->sadb_ext_type);
108
109                 if (ext->sadb_ext_len == 0) {
110                         printf("%s: invalid ext_len=0 was passed.\n", __func__);
111                         return;
112                 }
113                 if (ext->sadb_ext_len > tlen) {
114                         printf("%s: ext_len too big (%u > %u).\n",
115                                 __func__, ext->sadb_ext_len, tlen);
116                         return;
117                 }
118
119                 switch (ext->sadb_ext_type) {
120                 case SADB_EXT_SA:
121                         kdebug_sadb_sa(ext);
122                         break;
123                 case SADB_EXT_LIFETIME_CURRENT:
124                 case SADB_EXT_LIFETIME_HARD:
125                 case SADB_EXT_LIFETIME_SOFT:
126                         kdebug_sadb_lifetime(ext);
127                         break;
128                 case SADB_EXT_ADDRESS_SRC:
129                 case SADB_EXT_ADDRESS_DST:
130                 case SADB_EXT_ADDRESS_PROXY:
131                         kdebug_sadb_address(ext);
132                         break;
133                 case SADB_EXT_KEY_AUTH:
134                 case SADB_EXT_KEY_ENCRYPT:
135                         kdebug_sadb_key(ext);
136                         break;
137                 case SADB_EXT_IDENTITY_SRC:
138                 case SADB_EXT_IDENTITY_DST:
139                         kdebug_sadb_identity(ext);
140                         break;
141                 case SADB_EXT_SENSITIVITY:
142                         break;
143                 case SADB_EXT_PROPOSAL:
144                         kdebug_sadb_prop(ext);
145                         break;
146                 case SADB_EXT_SUPPORTED_AUTH:
147                 case SADB_EXT_SUPPORTED_ENCRYPT:
148                         kdebug_sadb_supported(ext);
149                         break;
150                 case SADB_EXT_SPIRANGE:
151                 case SADB_X_EXT_KMPRIVATE:
152                         break;
153                 case SADB_X_EXT_POLICY:
154                         kdebug_sadb_x_policy(ext);
155                         break;
156                 case SADB_X_EXT_SA2:
157                         kdebug_sadb_x_sa2(ext);
158                         break;
159                 default:
160                         printf("%s: invalid ext_type %u\n", __func__,
161                             ext->sadb_ext_type);
162                         return;
163                 }
164
165                 extlen = PFKEY_UNUNIT64(ext->sadb_ext_len);
166                 tlen -= extlen;
167                 ext = (struct sadb_ext *)((caddr_t)ext + extlen);
168         }
169
170         return;
171 }
172
173 static void
174 kdebug_sadb_prop(struct sadb_ext *ext)
175 {
176         struct sadb_prop *prop = (struct sadb_prop *)ext;
177         struct sadb_comb *comb;
178         int len;
179
180         /* sanity check */
181         if (ext == NULL)
182                 panic("%s: NULL pointer was passed.\n", __func__);
183
184         len = (PFKEY_UNUNIT64(prop->sadb_prop_len) - sizeof(*prop))
185                 / sizeof(*comb);
186         comb = (struct sadb_comb *)(prop + 1);
187         printf("sadb_prop{ replay=%u\n", prop->sadb_prop_replay);
188
189         while (len--) {
190                 printf("sadb_comb{ auth=%u encrypt=%u "
191                         "flags=0x%04x reserved=0x%08x\n",
192                         comb->sadb_comb_auth, comb->sadb_comb_encrypt,
193                         comb->sadb_comb_flags, comb->sadb_comb_reserved);
194
195                 printf("  auth_minbits=%u auth_maxbits=%u "
196                         "encrypt_minbits=%u encrypt_maxbits=%u\n",
197                         comb->sadb_comb_auth_minbits,
198                         comb->sadb_comb_auth_maxbits,
199                         comb->sadb_comb_encrypt_minbits,
200                         comb->sadb_comb_encrypt_maxbits);
201
202                 printf("  soft_alloc=%u hard_alloc=%u "
203                         "soft_bytes=%lu hard_bytes=%lu\n",
204                         comb->sadb_comb_soft_allocations,
205                         comb->sadb_comb_hard_allocations,
206                         (unsigned long)comb->sadb_comb_soft_bytes,
207                         (unsigned long)comb->sadb_comb_hard_bytes);
208
209                 printf("  soft_alloc=%lu hard_alloc=%lu "
210                         "soft_bytes=%lu hard_bytes=%lu }\n",
211                         (unsigned long)comb->sadb_comb_soft_addtime,
212                         (unsigned long)comb->sadb_comb_hard_addtime,
213                         (unsigned long)comb->sadb_comb_soft_usetime,
214                         (unsigned long)comb->sadb_comb_hard_usetime);
215                 comb++;
216         }
217         printf("}\n");
218
219         return;
220 }
221
222 static void
223 kdebug_sadb_identity(struct sadb_ext *ext)
224 {
225         struct sadb_ident *id = (struct sadb_ident *)ext;
226         int len;
227
228         /* sanity check */
229         if (ext == NULL)
230                 panic("%s: NULL pointer was passed.\n", __func__);
231
232         len = PFKEY_UNUNIT64(id->sadb_ident_len) - sizeof(*id);
233         printf("sadb_ident_%s{",
234             id->sadb_ident_exttype == SADB_EXT_IDENTITY_SRC ? "src" : "dst");
235         switch (id->sadb_ident_type) {
236         default:
237                 printf(" type=%d id=%lu",
238                         id->sadb_ident_type, (u_long)id->sadb_ident_id);
239                 if (len) {
240 #ifdef _KERNEL
241                         ipsec_hexdump((caddr_t)(id + 1), len); /*XXX cast ?*/
242 #else
243                         char *p, *ep;
244                         printf("\n  str=\"");
245                         p = (char *)(id + 1);
246                         ep = p + len;
247                         for (/*nothing*/; *p && p < ep; p++) {
248                                 if (isprint(*p))
249                                         printf("%c", *p & 0xff);
250                                 else
251                                         printf("\\%03o", *p & 0xff);
252                         }
253 #endif
254                         printf("\"");
255                 }
256                 break;
257         }
258
259         printf(" }\n");
260
261         return;
262 }
263
264 static void
265 kdebug_sadb_supported(struct sadb_ext *ext)
266 {
267         struct sadb_supported *sup = (struct sadb_supported *)ext;
268         struct sadb_alg *alg;
269         int len;
270
271         /* sanity check */
272         if (ext == NULL)
273                 panic("%s: NULL pointer was passed.\n", __func__);
274
275         len = (PFKEY_UNUNIT64(sup->sadb_supported_len) - sizeof(*sup))
276                 / sizeof(*alg);
277         alg = (struct sadb_alg *)(sup + 1);
278         printf("sadb_sup{\n");
279         while (len--) {
280                 printf("  { id=%d ivlen=%d min=%d max=%d }\n",
281                         alg->sadb_alg_id, alg->sadb_alg_ivlen,
282                         alg->sadb_alg_minbits, alg->sadb_alg_maxbits);
283                 alg++;
284         }
285         printf("}\n");
286
287         return;
288 }
289
290 static void
291 kdebug_sadb_lifetime(struct sadb_ext *ext)
292 {
293         struct sadb_lifetime *lft = (struct sadb_lifetime *)ext;
294
295         /* sanity check */
296         if (ext == NULL)
297                 panic("%s: NULL pointer was passed.\n", __func__);
298
299         printf("sadb_lifetime{ alloc=%u, bytes=%u\n",
300                 lft->sadb_lifetime_allocations,
301                 (u_int32_t)lft->sadb_lifetime_bytes);
302         printf("  addtime=%u, usetime=%u }\n",
303                 (u_int32_t)lft->sadb_lifetime_addtime,
304                 (u_int32_t)lft->sadb_lifetime_usetime);
305
306         return;
307 }
308
309 static void
310 kdebug_sadb_sa(struct sadb_ext *ext)
311 {
312         struct sadb_sa *sa = (struct sadb_sa *)ext;
313
314         /* sanity check */
315         if (ext == NULL)
316                 panic("%s: NULL pointer was passed.\n", __func__);
317
318         printf("sadb_sa{ spi=%u replay=%u state=%u\n",
319             (u_int32_t)ntohl(sa->sadb_sa_spi), sa->sadb_sa_replay,
320             sa->sadb_sa_state);
321         printf("  auth=%u encrypt=%u flags=0x%08x }\n",
322             sa->sadb_sa_auth, sa->sadb_sa_encrypt, sa->sadb_sa_flags);
323
324         return;
325 }
326
327 static void
328 kdebug_sadb_address(struct sadb_ext *ext)
329 {
330         struct sadb_address *addr = (struct sadb_address *)ext;
331
332         /* sanity check */
333         if (ext == NULL)
334                 panic("%s: NULL pointer was passed.\n", __func__);
335
336         printf("sadb_address{ proto=%u prefixlen=%u reserved=0x%02x%02x }\n",
337             addr->sadb_address_proto, addr->sadb_address_prefixlen,
338             ((u_char *)&addr->sadb_address_reserved)[0],
339             ((u_char *)&addr->sadb_address_reserved)[1]);
340
341         kdebug_sockaddr((struct sockaddr *)((caddr_t)ext + sizeof(*addr)));
342
343         return;
344 }
345
346 static void
347 kdebug_sadb_key(struct sadb_ext *ext)
348 {
349         struct sadb_key *key = (struct sadb_key *)ext;
350
351         /* sanity check */
352         if (ext == NULL)
353                 panic("%s: NULL pointer was passed.\n", __func__);
354
355         printf("sadb_key{ bits=%u reserved=%u\n",
356             key->sadb_key_bits, key->sadb_key_reserved);
357         printf("  key=");
358
359         /* sanity check 2 */
360         if ((key->sadb_key_bits >> 3) >
361                 (PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key))) {
362                 printf("%s: key length mismatch, bit:%d len:%ld.\n",
363                         __func__,
364                         key->sadb_key_bits >> 3,
365                         (long)PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key));
366         }
367
368         ipsec_hexdump((caddr_t)key + sizeof(struct sadb_key),
369                       key->sadb_key_bits >> 3);
370         printf(" }\n");
371         return;
372 }
373
374 static void
375 kdebug_sadb_x_sa2(struct sadb_ext *ext)
376 {
377         struct sadb_x_sa2 *sa2 = (struct sadb_x_sa2 *)ext;
378
379         /* sanity check */
380         if (ext == NULL)
381                 panic("%s: NULL pointer was passed.\n", __func__);
382
383         printf("sadb_x_sa2{ mode=%u reqid=%u\n",
384             sa2->sadb_x_sa2_mode, sa2->sadb_x_sa2_reqid);
385         printf("  reserved1=%u reserved2=%u sequence=%u }\n",
386             sa2->sadb_x_sa2_reserved1, sa2->sadb_x_sa2_reserved2,
387             sa2->sadb_x_sa2_sequence);
388
389         return;
390 }
391
392 void
393 kdebug_sadb_x_policy(struct sadb_ext *ext)
394 {
395         struct sadb_x_policy *xpl = (struct sadb_x_policy *)ext;
396         struct sockaddr *addr;
397
398         /* sanity check */
399         if (ext == NULL)
400                 panic("%s: NULL pointer was passed.\n", __func__);
401
402         printf("sadb_x_policy{ type=%u dir=%u id=%x }\n",
403                 xpl->sadb_x_policy_type, xpl->sadb_x_policy_dir,
404                 xpl->sadb_x_policy_id);
405
406         if (xpl->sadb_x_policy_type == IPSEC_POLICY_IPSEC) {
407                 int tlen;
408                 struct sadb_x_ipsecrequest *xisr;
409
410                 tlen = PFKEY_UNUNIT64(xpl->sadb_x_policy_len) - sizeof(*xpl);
411                 xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);
412
413                 while (tlen > 0) {
414                         printf(" { len=%u proto=%u mode=%u level=%u reqid=%u\n",
415                                 xisr->sadb_x_ipsecrequest_len,
416                                 xisr->sadb_x_ipsecrequest_proto,
417                                 xisr->sadb_x_ipsecrequest_mode,
418                                 xisr->sadb_x_ipsecrequest_level,
419                                 xisr->sadb_x_ipsecrequest_reqid);
420
421                         if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
422                                 addr = (struct sockaddr *)(xisr + 1);
423                                 kdebug_sockaddr(addr);
424                                 addr = (struct sockaddr *)((caddr_t)addr
425                                                         + addr->sa_len);
426                                 kdebug_sockaddr(addr);
427                         }
428
429                         printf(" }\n");
430
431                         /* prevent infinite loop */
432                         if (xisr->sadb_x_ipsecrequest_len <= 0) {
433                                 printf("%s: wrong policy struct.\n", __func__);
434                                 return;
435                         }
436                         /* prevent overflow */
437                         if (xisr->sadb_x_ipsecrequest_len > tlen) {
438                                 printf("%s: invalid ipsec policy length "
439                                         "(%u > %u)\n", __func__,
440                                         xisr->sadb_x_ipsecrequest_len, tlen);
441                                 return;
442                         }
443
444                         tlen -= xisr->sadb_x_ipsecrequest_len;
445
446                         xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
447                                         + xisr->sadb_x_ipsecrequest_len);
448                 }
449
450                 if (tlen != 0)
451                         panic("%s: wrong policy struct.\n", __func__);
452         }
453
454         return;
455 }
456
457 #ifdef _KERNEL
458 /* %%%: about SPD and SAD */
459 void
460 kdebug_secpolicy(struct secpolicy *sp)
461 {
462         /* sanity check */
463         if (sp == NULL)
464                 panic("%s: NULL pointer was passed.\n", __func__);
465
466         printf("secpolicy{ refcnt=%u policy=%u\n",
467                 sp->refcnt, sp->policy);
468
469         kdebug_secpolicyindex(&sp->spidx);
470
471         switch (sp->policy) {
472         case IPSEC_POLICY_DISCARD:
473                 printf("  type=discard }\n");
474                 break;
475         case IPSEC_POLICY_NONE:
476                 printf("  type=none }\n");
477                 break;
478         case IPSEC_POLICY_IPSEC:
479             {
480                 struct ipsecrequest *isr;
481                 for (isr = sp->req; isr != NULL; isr = isr->next) {
482
483                         printf("  level=%u\n", isr->level);
484                         kdebug_secasindex(&isr->saidx);
485
486                         if (isr->sav != NULL)
487                                 kdebug_secasv(isr->sav);
488                 }
489                 printf("  }\n");
490             }
491                 break;
492         case IPSEC_POLICY_BYPASS:
493                 printf("  type=bypass }\n");
494                 break;
495         case IPSEC_POLICY_ENTRUST:
496                 printf("  type=entrust }\n");
497                 break;
498         default:
499                 printf("%s: Invalid policy found. %d\n", __func__, sp->policy);
500                 break;
501         }
502
503         return;
504 }
505
506 void
507 kdebug_secpolicyindex(struct secpolicyindex *spidx)
508 {
509         char buf[INET6_ADDRSTRLEN];
510
511         /* sanity check */
512         if (spidx == NULL)
513                 panic("%s: NULL pointer was passed.\n", __func__);
514
515         printf("secpolicyindex{ dir=%u prefs=%u prefd=%u ul_proto=%u\n",
516                 spidx->dir, spidx->prefs, spidx->prefd, spidx->ul_proto);
517
518         printf("%s -> ", ipsec_address(&spidx->src, buf, sizeof(buf)));
519         printf("%s }\n", ipsec_address(&spidx->dst, buf, sizeof(buf)));
520 }
521
522 void
523 kdebug_secasindex(struct secasindex *saidx)
524 {
525         char buf[INET6_ADDRSTRLEN];
526
527         /* sanity check */
528         if (saidx == NULL)
529                 panic("%s: NULL pointer was passed.\n", __func__);
530
531         printf("secasindex{ mode=%u proto=%u\n",
532                 saidx->mode, saidx->proto);
533
534         printf("%s -> ", ipsec_address(&saidx->src, buf, sizeof(buf)));
535         printf("%s }\n", ipsec_address(&saidx->dst, buf, sizeof(buf)));
536 }
537
538 static void
539 kdebug_sec_lifetime(struct seclifetime *lft)
540 {
541         /* sanity check */
542         if (lft == NULL)
543                 panic("%s: NULL pointer was passed.\n", __func__);
544
545         printf("sec_lifetime{ alloc=%u, bytes=%u\n",
546                 lft->allocations, (u_int32_t)lft->bytes);
547         printf("  addtime=%u, usetime=%u }\n",
548                 (u_int32_t)lft->addtime, (u_int32_t)lft->usetime);
549
550         return;
551 }
552
553 void
554 kdebug_secasv(struct secasvar *sav)
555 {
556         /* sanity check */
557         if (sav == NULL)
558                 panic("%s: NULL pointer was passed.\n", __func__);
559
560         printf("secas{");
561         kdebug_secasindex(&sav->sah->saidx);
562
563         printf("  refcnt=%u state=%u auth=%u enc=%u\n",
564             sav->refcnt, sav->state, sav->alg_auth, sav->alg_enc);
565         printf("  spi=%u flags=%u\n",
566             (u_int32_t)ntohl(sav->spi), sav->flags);
567
568         if (sav->key_auth != NULL)
569                 kdebug_sadb_key((struct sadb_ext *)sav->key_auth);
570         if (sav->key_enc != NULL)
571                 kdebug_sadb_key((struct sadb_ext *)sav->key_enc);
572
573         if (sav->replay != NULL)
574                 kdebug_secreplay(sav->replay);
575         if (sav->lft_c != NULL)
576                 kdebug_sec_lifetime(sav->lft_c);
577         if (sav->lft_h != NULL)
578                 kdebug_sec_lifetime(sav->lft_h);
579         if (sav->lft_s != NULL)
580                 kdebug_sec_lifetime(sav->lft_s);
581
582 #ifdef notyet
583         /* XXX: misc[123] ? */
584 #endif
585
586         return;
587 }
588
589 static void
590 kdebug_secreplay(struct secreplay *rpl)
591 {
592         int len, l;
593
594         /* sanity check */
595         if (rpl == NULL)
596                 panic("%s: NULL pointer was passed.\n", __func__);
597
598         printf(" secreplay{ count=%u wsize=%u seq=%u lastseq=%u",
599             rpl->count, rpl->wsize, rpl->seq, rpl->lastseq);
600
601         if (rpl->bitmap == NULL) {
602                 printf(" }\n");
603                 return;
604         }
605
606         printf("\n   bitmap { ");
607
608         for (len = 0; len < rpl->wsize; len++) {
609                 for (l = 7; l >= 0; l--)
610                         printf("%u", (((rpl->bitmap)[len] >> l) & 1) ? 1 : 0);
611         }
612         printf(" }\n");
613
614         return;
615 }
616
617 void
618 kdebug_mbufhdr(const struct mbuf *m)
619 {
620         /* sanity check */
621         if (m == NULL)
622                 return;
623
624         printf("mbuf(%p){ m_next:%p m_nextpkt:%p m_data:%p "
625                "m_len:%d m_type:0x%02x m_flags:0x%02x }\n",
626                 m, m->m_next, m->m_nextpkt, m->m_data,
627                 m->m_len, m->m_type, m->m_flags);
628
629         if (m->m_flags & M_PKTHDR) {
630                 printf("  m_pkthdr{ len:%d rcvif:%p }\n",
631                     m->m_pkthdr.len, m->m_pkthdr.rcvif);
632         }
633
634         if (m->m_flags & M_EXT) {
635                 printf("  m_ext{ ext_buf:%p ext_free:%p "
636                        "ext_size:%u ext_cnt:%p }\n",
637                         m->m_ext.ext_buf, m->m_ext.ext_free,
638                         m->m_ext.ext_size, m->m_ext.ext_cnt);
639         }
640
641         return;
642 }
643
644 void
645 kdebug_mbuf(const struct mbuf *m0)
646 {
647         const struct mbuf *m = m0;
648         int i, j;
649
650         for (j = 0; m; m = m->m_next) {
651                 kdebug_mbufhdr(m);
652                 printf("  m_data:\n");
653                 for (i = 0; i < m->m_len; i++) {
654                         if (i && i % 32 == 0)
655                                 printf("\n");
656                         if (i % 4 == 0)
657                                 printf(" ");
658                         printf("%02x", mtod(m, const u_char *)[i]);
659                         j++;
660                 }
661                 printf("\n");
662         }
663
664         return;
665 }
666 #endif /* _KERNEL */
667
668 void
669 kdebug_sockaddr(struct sockaddr *addr)
670 {
671         struct sockaddr_in *sin4;
672 #ifdef INET6
673         struct sockaddr_in6 *sin6;
674 #endif
675
676         /* sanity check */
677         if (addr == NULL)
678                 panic("%s: NULL pointer was passed.\n", __func__);
679
680         /* NOTE: We deal with port number as host byte order. */
681         printf("sockaddr{ len=%u family=%u", addr->sa_len, addr->sa_family);
682
683         switch (addr->sa_family) {
684         case AF_INET:
685                 sin4 = (struct sockaddr_in *)addr;
686                 printf(" port=%u\n", ntohs(sin4->sin_port));
687                 ipsec_hexdump((caddr_t)&sin4->sin_addr, sizeof(sin4->sin_addr));
688                 break;
689 #ifdef INET6
690         case AF_INET6:
691                 sin6 = (struct sockaddr_in6 *)addr;
692                 printf(" port=%u\n", ntohs(sin6->sin6_port));
693                 printf("  flowinfo=0x%08x, scope_id=0x%08x\n",
694                     sin6->sin6_flowinfo, sin6->sin6_scope_id);
695                 ipsec_hexdump((caddr_t)&sin6->sin6_addr,
696                     sizeof(sin6->sin6_addr));
697                 break;
698 #endif
699         }
700
701         printf("  }\n");
702
703         return;
704 }
705
706 void
707 ipsec_bindump(caddr_t buf, int len)
708 {
709         int i;
710
711         for (i = 0; i < len; i++)
712                 printf("%c", (unsigned char)buf[i]);
713
714         return;
715 }
716
717
718 void
719 ipsec_hexdump(caddr_t buf, int len)
720 {
721         int i;
722
723         for (i = 0; i < len; i++) {
724                 if (i != 0 && i % 32 == 0) printf("\n");
725                 if (i % 4 == 0) printf(" ");
726                 printf("%02x", (unsigned char)buf[i]);
727         }
728 #if 0
729         if (i % 32 != 0) printf("\n");
730 #endif
731
732         return;
733 }