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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/lock.h>
43 #include <sys/malloc.h>
44 #include <sys/mbuf.h>
45 #include <sys/mutex.h>
46 #include <sys/queue.h>
47 #endif
48 #include <sys/socket.h>
49
50 #include <net/vnet.h>
51
52 #include <netipsec/key_var.h>
53 #include <netipsec/key_debug.h>
54
55 #include <netinet/in.h>
56 #include <netipsec/ipsec.h>
57 #ifdef _KERNEL
58 #include <netipsec/keydb.h>
59 #endif
60
61 #ifndef _KERNEL
62 #include <ctype.h>
63 #include <stdio.h>
64 #include <stdlib.h>
65 #endif /* !_KERNEL */
66
67 static void kdebug_sadb_prop(struct sadb_ext *);
68 static void kdebug_sadb_identity(struct sadb_ext *);
69 static void kdebug_sadb_supported(struct sadb_ext *);
70 static void kdebug_sadb_lifetime(struct sadb_ext *);
71 static void kdebug_sadb_sa(struct sadb_ext *);
72 static void kdebug_sadb_address(struct sadb_ext *);
73 static void kdebug_sadb_key(struct sadb_ext *);
74 static void kdebug_sadb_x_sa2(struct sadb_ext *);
75
76 #ifdef _KERNEL
77 static void kdebug_secreplay(struct secreplay *);
78 #endif
79
80 #ifndef _KERNEL
81 #define panic(fmt, ...) { printf(fmt, ## __VA_ARGS__); exit(-1); }
82 #endif
83
84 /* NOTE: host byte order */
85
86 /* %%%: about struct sadb_msg */
87 void
88 kdebug_sadb(struct sadb_msg *base)
89 {
90         struct sadb_ext *ext;
91         int tlen, extlen;
92
93         /* sanity check */
94         if (base == NULL)
95                 panic("%s: NULL pointer was passed.\n", __func__);
96
97         printf("sadb_msg{ version=%u type=%u errno=%u satype=%u\n",
98             base->sadb_msg_version, base->sadb_msg_type,
99             base->sadb_msg_errno, base->sadb_msg_satype);
100         printf("  len=%u reserved=%u seq=%u pid=%u\n",
101             base->sadb_msg_len, base->sadb_msg_reserved,
102             base->sadb_msg_seq, base->sadb_msg_pid);
103
104         tlen = PFKEY_UNUNIT64(base->sadb_msg_len) - sizeof(struct sadb_msg);
105         ext = (struct sadb_ext *)((caddr_t)base + sizeof(struct sadb_msg));
106
107         while (tlen > 0) {
108                 printf("sadb_ext{ len=%u type=%u }\n",
109                     ext->sadb_ext_len, ext->sadb_ext_type);
110
111                 if (ext->sadb_ext_len == 0) {
112                         printf("%s: invalid ext_len=0 was passed.\n", __func__);
113                         return;
114                 }
115                 if (ext->sadb_ext_len > tlen) {
116                         printf("%s: ext_len too big (%u > %u).\n",
117                                 __func__, ext->sadb_ext_len, tlen);
118                         return;
119                 }
120
121                 switch (ext->sadb_ext_type) {
122                 case SADB_EXT_SA:
123                         kdebug_sadb_sa(ext);
124                         break;
125                 case SADB_EXT_LIFETIME_CURRENT:
126                 case SADB_EXT_LIFETIME_HARD:
127                 case SADB_EXT_LIFETIME_SOFT:
128                         kdebug_sadb_lifetime(ext);
129                         break;
130                 case SADB_EXT_ADDRESS_SRC:
131                 case SADB_EXT_ADDRESS_DST:
132                 case SADB_EXT_ADDRESS_PROXY:
133                         kdebug_sadb_address(ext);
134                         break;
135                 case SADB_EXT_KEY_AUTH:
136                 case SADB_EXT_KEY_ENCRYPT:
137                         kdebug_sadb_key(ext);
138                         break;
139                 case SADB_EXT_IDENTITY_SRC:
140                 case SADB_EXT_IDENTITY_DST:
141                         kdebug_sadb_identity(ext);
142                         break;
143                 case SADB_EXT_SENSITIVITY:
144                         break;
145                 case SADB_EXT_PROPOSAL:
146                         kdebug_sadb_prop(ext);
147                         break;
148                 case SADB_EXT_SUPPORTED_AUTH:
149                 case SADB_EXT_SUPPORTED_ENCRYPT:
150                         kdebug_sadb_supported(ext);
151                         break;
152                 case SADB_EXT_SPIRANGE:
153                 case SADB_X_EXT_KMPRIVATE:
154                         break;
155                 case SADB_X_EXT_POLICY:
156                         kdebug_sadb_x_policy(ext);
157                         break;
158                 case SADB_X_EXT_SA2:
159                         kdebug_sadb_x_sa2(ext);
160                         break;
161                 default:
162                         printf("%s: invalid ext_type %u\n", __func__,
163                             ext->sadb_ext_type);
164                         return;
165                 }
166
167                 extlen = PFKEY_UNUNIT64(ext->sadb_ext_len);
168                 tlen -= extlen;
169                 ext = (struct sadb_ext *)((caddr_t)ext + extlen);
170         }
171
172         return;
173 }
174
175 static void
176 kdebug_sadb_prop(struct sadb_ext *ext)
177 {
178         struct sadb_prop *prop = (struct sadb_prop *)ext;
179         struct sadb_comb *comb;
180         int len;
181
182         /* sanity check */
183         if (ext == NULL)
184                 panic("%s: NULL pointer was passed.\n", __func__);
185
186         len = (PFKEY_UNUNIT64(prop->sadb_prop_len) - sizeof(*prop))
187                 / sizeof(*comb);
188         comb = (struct sadb_comb *)(prop + 1);
189         printf("sadb_prop{ replay=%u\n", prop->sadb_prop_replay);
190
191         while (len--) {
192                 printf("sadb_comb{ auth=%u encrypt=%u "
193                         "flags=0x%04x reserved=0x%08x\n",
194                         comb->sadb_comb_auth, comb->sadb_comb_encrypt,
195                         comb->sadb_comb_flags, comb->sadb_comb_reserved);
196
197                 printf("  auth_minbits=%u auth_maxbits=%u "
198                         "encrypt_minbits=%u encrypt_maxbits=%u\n",
199                         comb->sadb_comb_auth_minbits,
200                         comb->sadb_comb_auth_maxbits,
201                         comb->sadb_comb_encrypt_minbits,
202                         comb->sadb_comb_encrypt_maxbits);
203
204                 printf("  soft_alloc=%u hard_alloc=%u "
205                         "soft_bytes=%lu hard_bytes=%lu\n",
206                         comb->sadb_comb_soft_allocations,
207                         comb->sadb_comb_hard_allocations,
208                         (unsigned long)comb->sadb_comb_soft_bytes,
209                         (unsigned long)comb->sadb_comb_hard_bytes);
210
211                 printf("  soft_alloc=%lu hard_alloc=%lu "
212                         "soft_bytes=%lu hard_bytes=%lu }\n",
213                         (unsigned long)comb->sadb_comb_soft_addtime,
214                         (unsigned long)comb->sadb_comb_hard_addtime,
215                         (unsigned long)comb->sadb_comb_soft_usetime,
216                         (unsigned long)comb->sadb_comb_hard_usetime);
217                 comb++;
218         }
219         printf("}\n");
220
221         return;
222 }
223
224 static void
225 kdebug_sadb_identity(struct sadb_ext *ext)
226 {
227         struct sadb_ident *id = (struct sadb_ident *)ext;
228         int len;
229
230         /* sanity check */
231         if (ext == NULL)
232                 panic("%s: NULL pointer was passed.\n", __func__);
233
234         len = PFKEY_UNUNIT64(id->sadb_ident_len) - sizeof(*id);
235         printf("sadb_ident_%s{",
236             id->sadb_ident_exttype == SADB_EXT_IDENTITY_SRC ? "src" : "dst");
237         switch (id->sadb_ident_type) {
238         default:
239                 printf(" type=%d id=%lu",
240                         id->sadb_ident_type, (u_long)id->sadb_ident_id);
241                 if (len) {
242 #ifdef _KERNEL
243                         ipsec_hexdump((caddr_t)(id + 1), len); /*XXX cast ?*/
244 #else
245                         char *p, *ep;
246                         printf("\n  str=\"");
247                         p = (char *)(id + 1);
248                         ep = p + len;
249                         for (/*nothing*/; *p && p < ep; p++) {
250                                 if (isprint(*p))
251                                         printf("%c", *p & 0xff);
252                                 else
253                                         printf("\\%03o", *p & 0xff);
254                         }
255 #endif
256                         printf("\"");
257                 }
258                 break;
259         }
260
261         printf(" }\n");
262
263         return;
264 }
265
266 static void
267 kdebug_sadb_supported(struct sadb_ext *ext)
268 {
269         struct sadb_supported *sup = (struct sadb_supported *)ext;
270         struct sadb_alg *alg;
271         int len;
272
273         /* sanity check */
274         if (ext == NULL)
275                 panic("%s: NULL pointer was passed.\n", __func__);
276
277         len = (PFKEY_UNUNIT64(sup->sadb_supported_len) - sizeof(*sup))
278                 / sizeof(*alg);
279         alg = (struct sadb_alg *)(sup + 1);
280         printf("sadb_sup{\n");
281         while (len--) {
282                 printf("  { id=%d ivlen=%d min=%d max=%d }\n",
283                         alg->sadb_alg_id, alg->sadb_alg_ivlen,
284                         alg->sadb_alg_minbits, alg->sadb_alg_maxbits);
285                 alg++;
286         }
287         printf("}\n");
288
289         return;
290 }
291
292 static void
293 kdebug_sadb_lifetime(struct sadb_ext *ext)
294 {
295         struct sadb_lifetime *lft = (struct sadb_lifetime *)ext;
296
297         /* sanity check */
298         if (ext == NULL)
299                 panic("%s: NULL pointer was passed.\n", __func__);
300
301         printf("sadb_lifetime{ alloc=%u, bytes=%u\n",
302                 lft->sadb_lifetime_allocations,
303                 (u_int32_t)lft->sadb_lifetime_bytes);
304         printf("  addtime=%u, usetime=%u }\n",
305                 (u_int32_t)lft->sadb_lifetime_addtime,
306                 (u_int32_t)lft->sadb_lifetime_usetime);
307
308         return;
309 }
310
311 static void
312 kdebug_sadb_sa(struct sadb_ext *ext)
313 {
314         struct sadb_sa *sa = (struct sadb_sa *)ext;
315
316         /* sanity check */
317         if (ext == NULL)
318                 panic("%s: NULL pointer was passed.\n", __func__);
319
320         printf("sadb_sa{ spi=%u replay=%u state=%u\n",
321             (u_int32_t)ntohl(sa->sadb_sa_spi), sa->sadb_sa_replay,
322             sa->sadb_sa_state);
323         printf("  auth=%u encrypt=%u flags=0x%08x }\n",
324             sa->sadb_sa_auth, sa->sadb_sa_encrypt, sa->sadb_sa_flags);
325
326         return;
327 }
328
329 static void
330 kdebug_sadb_address(struct sadb_ext *ext)
331 {
332         struct sadb_address *addr = (struct sadb_address *)ext;
333
334         /* sanity check */
335         if (ext == NULL)
336                 panic("%s: NULL pointer was passed.\n", __func__);
337
338         printf("sadb_address{ proto=%u prefixlen=%u reserved=0x%02x%02x }\n",
339             addr->sadb_address_proto, addr->sadb_address_prefixlen,
340             ((u_char *)&addr->sadb_address_reserved)[0],
341             ((u_char *)&addr->sadb_address_reserved)[1]);
342
343         kdebug_sockaddr((struct sockaddr *)((caddr_t)ext + sizeof(*addr)));
344
345         return;
346 }
347
348 static void
349 kdebug_sadb_key(struct sadb_ext *ext)
350 {
351         struct sadb_key *key = (struct sadb_key *)ext;
352
353         /* sanity check */
354         if (ext == NULL)
355                 panic("%s: NULL pointer was passed.\n", __func__);
356
357         printf("sadb_key{ bits=%u reserved=%u\n",
358             key->sadb_key_bits, key->sadb_key_reserved);
359         printf("  key=");
360
361         /* sanity check 2 */
362         if ((key->sadb_key_bits >> 3) >
363                 (PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key))) {
364                 printf("%s: key length mismatch, bit:%d len:%ld.\n",
365                         __func__,
366                         key->sadb_key_bits >> 3,
367                         (long)PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key));
368         }
369
370         ipsec_hexdump((caddr_t)key + sizeof(struct sadb_key),
371                       key->sadb_key_bits >> 3);
372         printf(" }\n");
373         return;
374 }
375
376 static void
377 kdebug_sadb_x_sa2(struct sadb_ext *ext)
378 {
379         struct sadb_x_sa2 *sa2 = (struct sadb_x_sa2 *)ext;
380
381         /* sanity check */
382         if (ext == NULL)
383                 panic("%s: NULL pointer was passed.\n", __func__);
384
385         printf("sadb_x_sa2{ mode=%u reqid=%u\n",
386             sa2->sadb_x_sa2_mode, sa2->sadb_x_sa2_reqid);
387         printf("  reserved1=%u reserved2=%u sequence=%u }\n",
388             sa2->sadb_x_sa2_reserved1, sa2->sadb_x_sa2_reserved2,
389             sa2->sadb_x_sa2_sequence);
390
391         return;
392 }
393
394 void
395 kdebug_sadb_x_policy(struct sadb_ext *ext)
396 {
397         struct sadb_x_policy *xpl = (struct sadb_x_policy *)ext;
398         struct sockaddr *addr;
399
400         /* sanity check */
401         if (ext == NULL)
402                 panic("%s: NULL pointer was passed.\n", __func__);
403
404         printf("sadb_x_policy{ type=%u dir=%u id=%x }\n",
405                 xpl->sadb_x_policy_type, xpl->sadb_x_policy_dir,
406                 xpl->sadb_x_policy_id);
407
408         if (xpl->sadb_x_policy_type == IPSEC_POLICY_IPSEC) {
409                 int tlen;
410                 struct sadb_x_ipsecrequest *xisr;
411
412                 tlen = PFKEY_UNUNIT64(xpl->sadb_x_policy_len) - sizeof(*xpl);
413                 xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);
414
415                 while (tlen > 0) {
416                         printf(" { len=%u proto=%u mode=%u level=%u reqid=%u\n",
417                                 xisr->sadb_x_ipsecrequest_len,
418                                 xisr->sadb_x_ipsecrequest_proto,
419                                 xisr->sadb_x_ipsecrequest_mode,
420                                 xisr->sadb_x_ipsecrequest_level,
421                                 xisr->sadb_x_ipsecrequest_reqid);
422
423                         if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
424                                 addr = (struct sockaddr *)(xisr + 1);
425                                 kdebug_sockaddr(addr);
426                                 addr = (struct sockaddr *)((caddr_t)addr
427                                                         + addr->sa_len);
428                                 kdebug_sockaddr(addr);
429                         }
430
431                         printf(" }\n");
432
433                         /* prevent infinite loop */
434                         if (xisr->sadb_x_ipsecrequest_len <= 0) {
435                                 printf("%s: wrong policy struct.\n", __func__);
436                                 return;
437                         }
438                         /* prevent overflow */
439                         if (xisr->sadb_x_ipsecrequest_len > tlen) {
440                                 printf("%s: invalid ipsec policy length "
441                                         "(%u > %u)\n", __func__,
442                                         xisr->sadb_x_ipsecrequest_len, tlen);
443                                 return;
444                         }
445
446                         tlen -= xisr->sadb_x_ipsecrequest_len;
447
448                         xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
449                                         + xisr->sadb_x_ipsecrequest_len);
450                 }
451
452                 if (tlen != 0)
453                         panic("%s: wrong policy struct.\n", __func__);
454         }
455
456         return;
457 }
458
459 #ifdef _KERNEL
460 /* %%%: about SPD and SAD */
461 void
462 kdebug_secpolicy(struct secpolicy *sp)
463 {
464         /* sanity check */
465         if (sp == NULL)
466                 panic("%s: NULL pointer was passed.\n", __func__);
467
468         printf("secpolicy{ refcnt=%u policy=%u\n",
469                 sp->refcnt, sp->policy);
470
471         kdebug_secpolicyindex(&sp->spidx);
472
473         switch (sp->policy) {
474         case IPSEC_POLICY_DISCARD:
475                 printf("  type=discard }\n");
476                 break;
477         case IPSEC_POLICY_NONE:
478                 printf("  type=none }\n");
479                 break;
480         case IPSEC_POLICY_IPSEC:
481             {
482                 struct ipsecrequest *isr;
483                 for (isr = sp->req; isr != NULL; isr = isr->next) {
484
485                         printf("  level=%u\n", isr->level);
486                         kdebug_secasindex(&isr->saidx);
487
488                         if (isr->sav != NULL)
489                                 kdebug_secasv(isr->sav);
490                 }
491                 printf("  }\n");
492             }
493                 break;
494         case IPSEC_POLICY_BYPASS:
495                 printf("  type=bypass }\n");
496                 break;
497         case IPSEC_POLICY_ENTRUST:
498                 printf("  type=entrust }\n");
499                 break;
500         default:
501                 printf("%s: Invalid policy found. %d\n", __func__, sp->policy);
502                 break;
503         }
504
505         return;
506 }
507
508 void
509 kdebug_secpolicyindex(struct secpolicyindex *spidx)
510 {
511         char buf[INET6_ADDRSTRLEN];
512
513         /* sanity check */
514         if (spidx == NULL)
515                 panic("%s: NULL pointer was passed.\n", __func__);
516
517         printf("secpolicyindex{ dir=%u prefs=%u prefd=%u ul_proto=%u\n",
518                 spidx->dir, spidx->prefs, spidx->prefd, spidx->ul_proto);
519
520         printf("%s -> ", ipsec_address(&spidx->src, buf, sizeof(buf)));
521         printf("%s }\n", ipsec_address(&spidx->dst, buf, sizeof(buf)));
522 }
523
524 void
525 kdebug_secasindex(struct secasindex *saidx)
526 {
527         char buf[INET6_ADDRSTRLEN];
528
529         /* sanity check */
530         if (saidx == NULL)
531                 panic("%s: NULL pointer was passed.\n", __func__);
532
533         printf("secasindex{ mode=%u proto=%u\n",
534                 saidx->mode, saidx->proto);
535
536         printf("%s -> ", ipsec_address(&saidx->src, buf, sizeof(buf)));
537         printf("%s }\n", ipsec_address(&saidx->dst, buf, sizeof(buf)));
538 }
539
540 static void
541 kdebug_sec_lifetime(struct seclifetime *lft)
542 {
543         /* sanity check */
544         if (lft == NULL)
545                 panic("%s: NULL pointer was passed.\n", __func__);
546
547         printf("sec_lifetime{ alloc=%u, bytes=%u\n",
548                 lft->allocations, (u_int32_t)lft->bytes);
549         printf("  addtime=%u, usetime=%u }\n",
550                 (u_int32_t)lft->addtime, (u_int32_t)lft->usetime);
551
552         return;
553 }
554
555 void
556 kdebug_secasv(struct secasvar *sav)
557 {
558         /* sanity check */
559         if (sav == NULL)
560                 panic("%s: NULL pointer was passed.\n", __func__);
561
562         printf("secas{");
563         kdebug_secasindex(&sav->sah->saidx);
564
565         printf("  refcnt=%u state=%u auth=%u enc=%u\n",
566             sav->refcnt, sav->state, sav->alg_auth, sav->alg_enc);
567         printf("  spi=%u flags=%u\n",
568             (u_int32_t)ntohl(sav->spi), sav->flags);
569
570         if (sav->key_auth != NULL)
571                 kdebug_sadb_key((struct sadb_ext *)sav->key_auth);
572         if (sav->key_enc != NULL)
573                 kdebug_sadb_key((struct sadb_ext *)sav->key_enc);
574
575         if (sav->replay != NULL) {
576                 SECASVAR_LOCK(sav);
577                 kdebug_secreplay(sav->replay);
578                 SECASVAR_UNLOCK(sav);
579         }
580         if (sav->lft_c != NULL)
581                 kdebug_sec_lifetime(sav->lft_c);
582         if (sav->lft_h != NULL)
583                 kdebug_sec_lifetime(sav->lft_h);
584         if (sav->lft_s != NULL)
585                 kdebug_sec_lifetime(sav->lft_s);
586
587 #ifdef notyet
588         /* XXX: misc[123] ? */
589 #endif
590
591         return;
592 }
593
594 static void
595 kdebug_secreplay(struct secreplay *rpl)
596 {
597         int len, l;
598
599         /* sanity check */
600         if (rpl == NULL)
601                 panic("%s: NULL pointer was passed.\n", __func__);
602
603         printf(" secreplay{ count=%u bitmap_size=%u wsize=%u seq=%u lastseq=%u",
604             rpl->count, rpl->bitmap_size, rpl->wsize, rpl->seq, rpl->lastseq);
605
606         if (rpl->bitmap == NULL) {
607                 printf(" }\n");
608                 return;
609         }
610
611         printf("\n   bitmap { ");
612
613         for (len = 0; len < rpl->bitmap_size*4; len++) {
614                 for (l = 7; l >= 0; l--)
615                         printf("%u", (((rpl->bitmap)[len] >> l) & 1) ? 1 : 0);
616         }
617         printf(" }\n");
618
619         return;
620 }
621
622 void
623 kdebug_mbufhdr(const struct mbuf *m)
624 {
625         /* sanity check */
626         if (m == NULL)
627                 return;
628
629         printf("mbuf(%p){ m_next:%p m_nextpkt:%p m_data:%p "
630                "m_len:%d m_type:0x%02x m_flags:0x%02x }\n",
631                 m, m->m_next, m->m_nextpkt, m->m_data,
632                 m->m_len, m->m_type, m->m_flags);
633
634         if (m->m_flags & M_PKTHDR) {
635                 printf("  m_pkthdr{ len:%d rcvif:%p }\n",
636                     m->m_pkthdr.len, m->m_pkthdr.rcvif);
637         }
638
639         if (m->m_flags & M_EXT) {
640                 printf("  m_ext{ ext_buf:%p ext_free:%p "
641                        "ext_size:%u ext_cnt:%p }\n",
642                         m->m_ext.ext_buf, m->m_ext.ext_free,
643                         m->m_ext.ext_size, m->m_ext.ext_cnt);
644         }
645
646         return;
647 }
648
649 void
650 kdebug_mbuf(const struct mbuf *m0)
651 {
652         const struct mbuf *m = m0;
653         int i, j;
654
655         for (j = 0; m; m = m->m_next) {
656                 kdebug_mbufhdr(m);
657                 printf("  m_data:\n");
658                 for (i = 0; i < m->m_len; i++) {
659                         if (i && i % 32 == 0)
660                                 printf("\n");
661                         if (i % 4 == 0)
662                                 printf(" ");
663                         printf("%02x", mtod(m, const u_char *)[i]);
664                         j++;
665                 }
666                 printf("\n");
667         }
668
669         return;
670 }
671 #endif /* _KERNEL */
672
673 void
674 kdebug_sockaddr(struct sockaddr *addr)
675 {
676         struct sockaddr_in *sin4;
677 #ifdef INET6
678         struct sockaddr_in6 *sin6;
679 #endif
680
681         /* sanity check */
682         if (addr == NULL)
683                 panic("%s: NULL pointer was passed.\n", __func__);
684
685         /* NOTE: We deal with port number as host byte order. */
686         printf("sockaddr{ len=%u family=%u", addr->sa_len, addr->sa_family);
687
688         switch (addr->sa_family) {
689         case AF_INET:
690                 sin4 = (struct sockaddr_in *)addr;
691                 printf(" port=%u\n", ntohs(sin4->sin_port));
692                 ipsec_hexdump((caddr_t)&sin4->sin_addr, sizeof(sin4->sin_addr));
693                 break;
694 #ifdef INET6
695         case AF_INET6:
696                 sin6 = (struct sockaddr_in6 *)addr;
697                 printf(" port=%u\n", ntohs(sin6->sin6_port));
698                 printf("  flowinfo=0x%08x, scope_id=0x%08x\n",
699                     sin6->sin6_flowinfo, sin6->sin6_scope_id);
700                 ipsec_hexdump((caddr_t)&sin6->sin6_addr,
701                     sizeof(sin6->sin6_addr));
702                 break;
703 #endif
704         }
705
706         printf("  }\n");
707
708         return;
709 }
710
711 void
712 ipsec_bindump(caddr_t buf, int len)
713 {
714         int i;
715
716         for (i = 0; i < len; i++)
717                 printf("%c", (unsigned char)buf[i]);
718
719         return;
720 }
721
722
723 void
724 ipsec_hexdump(caddr_t buf, int len)
725 {
726         int i;
727
728         for (i = 0; i < len; i++) {
729                 if (i != 0 && i % 32 == 0) printf("\n");
730                 if (i % 4 == 0) printf(" ");
731                 printf("%02x", (unsigned char)buf[i]);
732         }
733 #if 0
734         if (i % 32 != 0) printf("\n");
735 #endif
736
737         return;
738 }