xref: /freebsd/sys/netipsec/key_debug.c (revision d6b92ffa)
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 #include <netipsec/xform.h>
60 #endif
61 
62 #ifndef _KERNEL
63 #include <ctype.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <arpa/inet.h>
67 #endif /* !_KERNEL */
68 
69 static void kdebug_sadb_prop(struct sadb_ext *);
70 static void kdebug_sadb_identity(struct sadb_ext *);
71 static void kdebug_sadb_supported(struct sadb_ext *);
72 static void kdebug_sadb_lifetime(struct sadb_ext *);
73 static void kdebug_sadb_sa(struct sadb_ext *);
74 static void kdebug_sadb_address(struct sadb_ext *);
75 static void kdebug_sadb_key(struct sadb_ext *);
76 static void kdebug_sadb_x_sa2(struct sadb_ext *);
77 static void kdebug_sadb_x_sa_replay(struct sadb_ext *);
78 static void kdebug_sadb_x_natt(struct sadb_ext *);
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 		case SADB_X_EXT_NAT_T_OAI:
134 		case SADB_X_EXT_NAT_T_OAR:
135 		case SADB_X_EXT_NEW_ADDRESS_SRC:
136 		case SADB_X_EXT_NEW_ADDRESS_DST:
137 			kdebug_sadb_address(ext);
138 			break;
139 		case SADB_EXT_KEY_AUTH:
140 		case SADB_EXT_KEY_ENCRYPT:
141 			kdebug_sadb_key(ext);
142 			break;
143 		case SADB_EXT_IDENTITY_SRC:
144 		case SADB_EXT_IDENTITY_DST:
145 			kdebug_sadb_identity(ext);
146 			break;
147 		case SADB_EXT_SENSITIVITY:
148 			break;
149 		case SADB_EXT_PROPOSAL:
150 			kdebug_sadb_prop(ext);
151 			break;
152 		case SADB_EXT_SUPPORTED_AUTH:
153 		case SADB_EXT_SUPPORTED_ENCRYPT:
154 			kdebug_sadb_supported(ext);
155 			break;
156 		case SADB_EXT_SPIRANGE:
157 		case SADB_X_EXT_KMPRIVATE:
158 			break;
159 		case SADB_X_EXT_POLICY:
160 			kdebug_sadb_x_policy(ext);
161 			break;
162 		case SADB_X_EXT_SA2:
163 			kdebug_sadb_x_sa2(ext);
164 			break;
165 		case SADB_X_EXT_SA_REPLAY:
166 			kdebug_sadb_x_sa_replay(ext);
167 			break;
168 		case SADB_X_EXT_NAT_T_TYPE:
169 		case SADB_X_EXT_NAT_T_SPORT:
170 		case SADB_X_EXT_NAT_T_DPORT:
171 			kdebug_sadb_x_natt(ext);
172 			break;
173 		default:
174 			printf("%s: invalid ext_type %u\n", __func__,
175 			    ext->sadb_ext_type);
176 			return;
177 		}
178 
179 		extlen = PFKEY_UNUNIT64(ext->sadb_ext_len);
180 		tlen -= extlen;
181 		ext = (struct sadb_ext *)((caddr_t)ext + extlen);
182 	}
183 
184 	return;
185 }
186 
187 static void
188 kdebug_sadb_prop(struct sadb_ext *ext)
189 {
190 	struct sadb_prop *prop = (struct sadb_prop *)ext;
191 	struct sadb_comb *comb;
192 	int len;
193 
194 	/* sanity check */
195 	if (ext == NULL)
196 		panic("%s: NULL pointer was passed.\n", __func__);
197 
198 	len = (PFKEY_UNUNIT64(prop->sadb_prop_len) - sizeof(*prop))
199 		/ sizeof(*comb);
200 	comb = (struct sadb_comb *)(prop + 1);
201 	printf("sadb_prop{ replay=%u\n", prop->sadb_prop_replay);
202 
203 	while (len--) {
204 		printf("sadb_comb{ auth=%u encrypt=%u "
205 			"flags=0x%04x reserved=0x%08x\n",
206 			comb->sadb_comb_auth, comb->sadb_comb_encrypt,
207 			comb->sadb_comb_flags, comb->sadb_comb_reserved);
208 
209 		printf("  auth_minbits=%u auth_maxbits=%u "
210 			"encrypt_minbits=%u encrypt_maxbits=%u\n",
211 			comb->sadb_comb_auth_minbits,
212 			comb->sadb_comb_auth_maxbits,
213 			comb->sadb_comb_encrypt_minbits,
214 			comb->sadb_comb_encrypt_maxbits);
215 
216 		printf("  soft_alloc=%u hard_alloc=%u "
217 			"soft_bytes=%lu hard_bytes=%lu\n",
218 			comb->sadb_comb_soft_allocations,
219 			comb->sadb_comb_hard_allocations,
220 			(unsigned long)comb->sadb_comb_soft_bytes,
221 			(unsigned long)comb->sadb_comb_hard_bytes);
222 
223 		printf("  soft_alloc=%lu hard_alloc=%lu "
224 			"soft_bytes=%lu hard_bytes=%lu }\n",
225 			(unsigned long)comb->sadb_comb_soft_addtime,
226 			(unsigned long)comb->sadb_comb_hard_addtime,
227 			(unsigned long)comb->sadb_comb_soft_usetime,
228 			(unsigned long)comb->sadb_comb_hard_usetime);
229 		comb++;
230 	}
231 	printf("}\n");
232 
233 	return;
234 }
235 
236 static void
237 kdebug_sadb_identity(struct sadb_ext *ext)
238 {
239 	struct sadb_ident *id = (struct sadb_ident *)ext;
240 	int len;
241 
242 	/* sanity check */
243 	if (ext == NULL)
244 		panic("%s: NULL pointer was passed.\n", __func__);
245 
246 	len = PFKEY_UNUNIT64(id->sadb_ident_len) - sizeof(*id);
247 	printf("sadb_ident_%s{",
248 	    id->sadb_ident_exttype == SADB_EXT_IDENTITY_SRC ? "src" : "dst");
249 	switch (id->sadb_ident_type) {
250 	default:
251 		printf(" type=%d id=%lu",
252 			id->sadb_ident_type, (u_long)id->sadb_ident_id);
253 		if (len) {
254 #ifdef _KERNEL
255 			ipsec_hexdump((caddr_t)(id + 1), len); /*XXX cast ?*/
256 #else
257 			char *p, *ep;
258 			printf("\n  str=\"");
259 			p = (char *)(id + 1);
260 			ep = p + len;
261 			for (/*nothing*/; *p && p < ep; p++) {
262 				if (isprint(*p))
263 					printf("%c", *p & 0xff);
264 				else
265 					printf("\\%03o", *p & 0xff);
266 			}
267 #endif
268 			printf("\"");
269 		}
270 		break;
271 	}
272 
273 	printf(" }\n");
274 
275 	return;
276 }
277 
278 static void
279 kdebug_sadb_supported(struct sadb_ext *ext)
280 {
281 	struct sadb_supported *sup = (struct sadb_supported *)ext;
282 	struct sadb_alg *alg;
283 	int len;
284 
285 	/* sanity check */
286 	if (ext == NULL)
287 		panic("%s: NULL pointer was passed.\n", __func__);
288 
289 	len = (PFKEY_UNUNIT64(sup->sadb_supported_len) - sizeof(*sup))
290 		/ sizeof(*alg);
291 	alg = (struct sadb_alg *)(sup + 1);
292 	printf("sadb_sup{\n");
293 	while (len--) {
294 		printf("  { id=%d ivlen=%d min=%d max=%d }\n",
295 			alg->sadb_alg_id, alg->sadb_alg_ivlen,
296 			alg->sadb_alg_minbits, alg->sadb_alg_maxbits);
297 		alg++;
298 	}
299 	printf("}\n");
300 
301 	return;
302 }
303 
304 static void
305 kdebug_sadb_lifetime(struct sadb_ext *ext)
306 {
307 	struct sadb_lifetime *lft = (struct sadb_lifetime *)ext;
308 
309 	/* sanity check */
310 	if (ext == NULL)
311 		panic("%s: NULL pointer was passed.\n", __func__);
312 
313 	printf("sadb_lifetime{ alloc=%u, bytes=%u\n",
314 		lft->sadb_lifetime_allocations,
315 		(u_int32_t)lft->sadb_lifetime_bytes);
316 	printf("  addtime=%u, usetime=%u }\n",
317 		(u_int32_t)lft->sadb_lifetime_addtime,
318 		(u_int32_t)lft->sadb_lifetime_usetime);
319 
320 	return;
321 }
322 
323 static void
324 kdebug_sadb_sa(struct sadb_ext *ext)
325 {
326 	struct sadb_sa *sa = (struct sadb_sa *)ext;
327 
328 	/* sanity check */
329 	if (ext == NULL)
330 		panic("%s: NULL pointer was passed.\n", __func__);
331 
332 	printf("sadb_sa{ spi=%u replay=%u state=%u\n",
333 	    (u_int32_t)ntohl(sa->sadb_sa_spi), sa->sadb_sa_replay,
334 	    sa->sadb_sa_state);
335 	printf("  auth=%u encrypt=%u flags=0x%08x }\n",
336 	    sa->sadb_sa_auth, sa->sadb_sa_encrypt, sa->sadb_sa_flags);
337 
338 	return;
339 }
340 
341 static void
342 kdebug_sadb_address(struct sadb_ext *ext)
343 {
344 	struct sadb_address *addr = (struct sadb_address *)ext;
345 
346 	/* sanity check */
347 	if (ext == NULL)
348 		panic("%s: NULL pointer was passed.\n", __func__);
349 
350 	printf("sadb_address{ proto=%u prefixlen=%u reserved=0x%02x%02x }\n",
351 	    addr->sadb_address_proto, addr->sadb_address_prefixlen,
352 	    ((u_char *)&addr->sadb_address_reserved)[0],
353 	    ((u_char *)&addr->sadb_address_reserved)[1]);
354 
355 	kdebug_sockaddr((struct sockaddr *)((caddr_t)ext + sizeof(*addr)));
356 }
357 
358 static void
359 kdebug_sadb_key(struct sadb_ext *ext)
360 {
361 	struct sadb_key *key = (struct sadb_key *)ext;
362 
363 	/* sanity check */
364 	if (ext == NULL)
365 		panic("%s: NULL pointer was passed.\n", __func__);
366 
367 	printf("sadb_key{ bits=%u reserved=%u\n",
368 	    key->sadb_key_bits, key->sadb_key_reserved);
369 	printf("  key=");
370 
371 	/* sanity check 2 */
372 	if ((key->sadb_key_bits >> 3) >
373 		(PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key))) {
374 		printf("%s: key length mismatch, bit:%d len:%ld.\n",
375 			__func__,
376 			key->sadb_key_bits >> 3,
377 			(long)PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key));
378 	}
379 
380 	ipsec_hexdump((caddr_t)key + sizeof(struct sadb_key),
381 	              key->sadb_key_bits >> 3);
382 	printf(" }\n");
383 	return;
384 }
385 
386 static void
387 kdebug_sadb_x_sa2(struct sadb_ext *ext)
388 {
389 	struct sadb_x_sa2 *sa2 = (struct sadb_x_sa2 *)ext;
390 
391 	/* sanity check */
392 	if (ext == NULL)
393 		panic("%s: NULL pointer was passed.\n", __func__);
394 
395 	printf("sadb_x_sa2{ mode=%u reqid=%u\n",
396 	    sa2->sadb_x_sa2_mode, sa2->sadb_x_sa2_reqid);
397 	printf("  reserved1=%u reserved2=%u sequence=%u }\n",
398 	    sa2->sadb_x_sa2_reserved1, sa2->sadb_x_sa2_reserved2,
399 	    sa2->sadb_x_sa2_sequence);
400 
401 	return;
402 }
403 
404 static void
405 kdebug_sadb_x_sa_replay(struct sadb_ext *ext)
406 {
407 	struct sadb_x_sa_replay *replay;
408 
409 	/* sanity check */
410 	if (ext == NULL)
411 		panic("%s: NULL pointer was passed.\n", __func__);
412 
413 	replay = (struct sadb_x_sa_replay *)ext;
414 	printf("sadb_x_sa_replay{ replay=%u }\n",
415 	    replay->sadb_x_sa_replay_replay);
416 }
417 
418 static void
419 kdebug_sadb_x_natt(struct sadb_ext *ext)
420 {
421 	struct sadb_x_nat_t_type *type;
422 	struct sadb_x_nat_t_port *port;
423 
424 	/* sanity check */
425 	if (ext == NULL)
426 		panic("%s: NULL pointer was passed.\n", __func__);
427 
428 	if (ext->sadb_ext_type == SADB_X_EXT_NAT_T_TYPE) {
429 		type = (struct sadb_x_nat_t_type *)ext;
430 		printf("sadb_x_nat_t_type{ type=%u }\n",
431 		    type->sadb_x_nat_t_type_type);
432 	} else {
433 		port = (struct sadb_x_nat_t_port *)ext;
434 		printf("sadb_x_nat_t_port{ port=%u }\n",
435 		    ntohs(port->sadb_x_nat_t_port_port));
436 	}
437 }
438 
439 void
440 kdebug_sadb_x_policy(struct sadb_ext *ext)
441 {
442 	struct sadb_x_policy *xpl = (struct sadb_x_policy *)ext;
443 	struct sockaddr *addr;
444 
445 	/* sanity check */
446 	if (ext == NULL)
447 		panic("%s: NULL pointer was passed.\n", __func__);
448 
449 	printf("sadb_x_policy{ type=%u dir=%u id=%x scope=%u %s=%u }\n",
450 		xpl->sadb_x_policy_type, xpl->sadb_x_policy_dir,
451 		xpl->sadb_x_policy_id, xpl->sadb_x_policy_scope,
452 		xpl->sadb_x_policy_scope == IPSEC_POLICYSCOPE_IFNET ?
453 		"ifindex": "priority", xpl->sadb_x_policy_priority);
454 
455 	if (xpl->sadb_x_policy_type == IPSEC_POLICY_IPSEC) {
456 		int tlen;
457 		struct sadb_x_ipsecrequest *xisr;
458 
459 		tlen = PFKEY_UNUNIT64(xpl->sadb_x_policy_len) - sizeof(*xpl);
460 		xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);
461 
462 		while (tlen > 0) {
463 			printf(" { len=%u proto=%u mode=%u level=%u reqid=%u\n",
464 				xisr->sadb_x_ipsecrequest_len,
465 				xisr->sadb_x_ipsecrequest_proto,
466 				xisr->sadb_x_ipsecrequest_mode,
467 				xisr->sadb_x_ipsecrequest_level,
468 				xisr->sadb_x_ipsecrequest_reqid);
469 
470 			if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
471 				addr = (struct sockaddr *)(xisr + 1);
472 				kdebug_sockaddr(addr);
473 				addr = (struct sockaddr *)((caddr_t)addr
474 							+ addr->sa_len);
475 				kdebug_sockaddr(addr);
476 			}
477 
478 			printf(" }\n");
479 
480 			/* prevent infinite loop */
481 			if (xisr->sadb_x_ipsecrequest_len <= 0) {
482 				printf("%s: wrong policy struct.\n", __func__);
483 				return;
484 			}
485 			/* prevent overflow */
486 			if (xisr->sadb_x_ipsecrequest_len > tlen) {
487 				printf("%s: invalid ipsec policy length "
488 					"(%u > %u)\n", __func__,
489 					xisr->sadb_x_ipsecrequest_len, tlen);
490 				return;
491 			}
492 
493 			tlen -= xisr->sadb_x_ipsecrequest_len;
494 
495 			xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
496 			                + xisr->sadb_x_ipsecrequest_len);
497 		}
498 
499 		if (tlen != 0)
500 			panic("%s: wrong policy struct.\n", __func__);
501 	}
502 
503 	return;
504 }
505 
506 #ifdef _KERNEL
507 /* %%%: about SPD and SAD */
508 const char*
509 kdebug_secpolicy_state(u_int state)
510 {
511 
512 	switch (state) {
513 	case IPSEC_SPSTATE_DEAD:
514 		return ("dead");
515 	case IPSEC_SPSTATE_LARVAL:
516 		return ("larval");
517 	case IPSEC_SPSTATE_ALIVE:
518 		return ("alive");
519 	case IPSEC_SPSTATE_PCB:
520 		return ("pcb");
521 	case IPSEC_SPSTATE_IFNET:
522 		return ("ifnet");
523 	}
524 	return ("unknown");
525 }
526 
527 const char*
528 kdebug_secpolicy_policy(u_int policy)
529 {
530 
531 	switch (policy) {
532 	case IPSEC_POLICY_DISCARD:
533 		return ("discard");
534 	case IPSEC_POLICY_NONE:
535 		return ("none");
536 	case IPSEC_POLICY_IPSEC:
537 		return ("ipsec");
538 	case IPSEC_POLICY_ENTRUST:
539 		return ("entrust");
540 	case IPSEC_POLICY_BYPASS:
541 		return ("bypass");
542 	}
543 	return ("unknown");
544 }
545 
546 const char*
547 kdebug_secpolicyindex_dir(u_int dir)
548 {
549 
550 	switch (dir) {
551 	case IPSEC_DIR_ANY:
552 		return ("any");
553 	case IPSEC_DIR_INBOUND:
554 		return ("in");
555 	case IPSEC_DIR_OUTBOUND:
556 		return ("out");
557 	}
558 	return ("unknown");
559 }
560 
561 const char*
562 kdebug_ipsecrequest_level(u_int level)
563 {
564 
565 	switch (level) {
566 	case IPSEC_LEVEL_DEFAULT:
567 		return ("default");
568 	case IPSEC_LEVEL_USE:
569 		return ("use");
570 	case IPSEC_LEVEL_REQUIRE:
571 		return ("require");
572 	case IPSEC_LEVEL_UNIQUE:
573 		return ("unique");
574 	}
575 	return ("unknown");
576 }
577 
578 const char*
579 kdebug_secasindex_mode(u_int mode)
580 {
581 
582 	switch (mode) {
583 	case IPSEC_MODE_ANY:
584 		return ("any");
585 	case IPSEC_MODE_TRANSPORT:
586 		return ("transport");
587 	case IPSEC_MODE_TUNNEL:
588 		return ("tunnel");
589 	case IPSEC_MODE_TCPMD5:
590 		return ("tcp-md5");
591 	}
592 	return ("unknown");
593 }
594 
595 const char*
596 kdebug_secasv_state(u_int state)
597 {
598 
599 	switch (state) {
600 	case SADB_SASTATE_LARVAL:
601 		return ("larval");
602 	case SADB_SASTATE_MATURE:
603 		return ("mature");
604 	case SADB_SASTATE_DYING:
605 		return ("dying");
606 	case SADB_SASTATE_DEAD:
607 		return ("dead");
608 	}
609 	return ("unknown");
610 }
611 
612 static char*
613 kdebug_port2str(const struct sockaddr *sa, char *buf, size_t len)
614 {
615 	uint16_t port;
616 
617 	IPSEC_ASSERT(sa != NULL, ("null sa"));
618 	switch (sa->sa_family) {
619 #ifdef INET
620 	case AF_INET:
621 		port = ntohs(((const struct sockaddr_in *)sa)->sin_port);
622 		break;
623 #endif
624 #ifdef INET6
625 	case AF_INET6:
626 		port = ntohs(((const struct sockaddr_in6 *)sa)->sin6_port);
627 		break;
628 #endif
629 	default:
630 		port = 0;
631 	}
632 	if (port == 0)
633 		return ("*");
634 	snprintf(buf, len, "%u", port);
635 	return (buf);
636 }
637 
638 void
639 kdebug_secpolicy(struct secpolicy *sp)
640 {
641 	u_int idx;
642 
643 	IPSEC_ASSERT(sp != NULL, ("null sp"));
644 	printf("SP { refcnt=%u id=%u priority=%u state=%s policy=%s\n",
645 	    sp->refcnt, sp->id, sp->priority,
646 	    kdebug_secpolicy_state(sp->state),
647 	    kdebug_secpolicy_policy(sp->policy));
648 	kdebug_secpolicyindex(&sp->spidx, "  ");
649 	for (idx = 0; idx < sp->tcount; idx++) {
650 		printf("  req[%u]{ level=%s ", idx,
651 		    kdebug_ipsecrequest_level(sp->req[idx]->level));
652 		kdebug_secasindex(&sp->req[idx]->saidx, NULL);
653 		printf("  }\n");
654 	}
655 	printf("}\n");
656 }
657 
658 void
659 kdebug_secpolicyindex(struct secpolicyindex *spidx, const char *indent)
660 {
661 	char buf[IPSEC_ADDRSTRLEN];
662 
663 	IPSEC_ASSERT(spidx != NULL, ("null spidx"));
664 	if (indent != NULL)
665 		printf("%s", indent);
666 	printf("spidx { dir=%s ul_proto=",
667 	    kdebug_secpolicyindex_dir(spidx->dir));
668 	if (spidx->ul_proto == IPSEC_ULPROTO_ANY)
669 		printf("* ");
670 	else
671 		printf("%u ", spidx->ul_proto);
672 	printf("%s/%u -> ", ipsec_address(&spidx->src, buf, sizeof(buf)),
673 	    spidx->prefs);
674 	printf("%s/%u }\n", ipsec_address(&spidx->dst, buf, sizeof(buf)),
675 	    spidx->prefd);
676 }
677 
678 void
679 kdebug_secasindex(const struct secasindex *saidx, const char *indent)
680 {
681 	char buf[IPSEC_ADDRSTRLEN], port[6];
682 
683 	IPSEC_ASSERT(saidx != NULL, ("null saidx"));
684 	if (indent != NULL)
685 		printf("%s", indent);
686 	printf("saidx { mode=%s proto=%u reqid=%u ",
687 	    kdebug_secasindex_mode(saidx->mode), saidx->proto, saidx->reqid);
688 	printf("%s:%s -> ", ipsec_address(&saidx->src, buf, sizeof(buf)),
689 	    kdebug_port2str(&saidx->src.sa, port, sizeof(port)));
690 	printf("%s:%s }\n", ipsec_address(&saidx->dst, buf, sizeof(buf)),
691 	    kdebug_port2str(&saidx->dst.sa, port, sizeof(port)));
692 }
693 
694 static void
695 kdebug_sec_lifetime(struct seclifetime *lft, const char *indent)
696 {
697 
698 	IPSEC_ASSERT(lft != NULL, ("null lft"));
699 	if (indent != NULL)
700 		printf("%s", indent);
701 	printf("lifetime { alloc=%u, bytes=%ju addtime=%ju usetime=%ju }\n",
702 	    lft->allocations, (uintmax_t)lft->bytes, (uintmax_t)lft->addtime,
703 	    (uintmax_t)lft->usetime);
704 }
705 
706 void
707 kdebug_secash(struct secashead *sah, const char *indent)
708 {
709 
710 	IPSEC_ASSERT(sah != NULL, ("null sah"));
711 	if (indent != NULL)
712 		printf("%s", indent);
713 	printf("SAH { refcnt=%u state=%s\n", sah->refcnt,
714 	    kdebug_secasv_state(sah->state));
715 	if (indent != NULL)
716 		printf("%s", indent);
717 	kdebug_secasindex(&sah->saidx, indent);
718 	if (indent != NULL)
719 		printf("%s", indent);
720 	printf("}\n");
721 }
722 
723 #ifdef IPSEC_DEBUG
724 static void
725 kdebug_secreplay(struct secreplay *rpl)
726 {
727 	int len, l;
728 
729 	IPSEC_ASSERT(rpl != NULL, ("null rpl"));
730 	printf(" secreplay{ count=%u bitmap_size=%u wsize=%u seq=%u lastseq=%u",
731 	    rpl->count, rpl->bitmap_size, rpl->wsize, rpl->seq, rpl->lastseq);
732 
733 	if (rpl->bitmap == NULL) {
734 		printf("  }\n");
735 		return;
736 	}
737 
738 	printf("\n    bitmap { ");
739 	for (len = 0; len < rpl->bitmap_size*4; len++) {
740 		for (l = 7; l >= 0; l--)
741 			printf("%u", (((rpl->bitmap)[len] >> l) & 1) ? 1 : 0);
742 	}
743 	printf("    }\n");
744 }
745 #endif /* IPSEC_DEBUG */
746 
747 static void
748 kdebug_secnatt(struct secnatt *natt)
749 {
750 	char buf[IPSEC_ADDRSTRLEN];
751 
752 	IPSEC_ASSERT(natt != NULL, ("null natt"));
753 	printf("  natt{ sport=%u dport=%u ", ntohs(natt->sport),
754 	    ntohs(natt->dport));
755 	if (natt->flags & IPSEC_NATT_F_OAI)
756 		printf("oai=%s ", ipsec_address(&natt->oai, buf, sizeof(buf)));
757 	if (natt->flags & IPSEC_NATT_F_OAR)
758 		printf("oar=%s ", ipsec_address(&natt->oar, buf, sizeof(buf)));
759 	printf("}\n");
760 }
761 
762 void
763 kdebug_secasv(struct secasvar *sav)
764 {
765 	struct seclifetime lft_c;
766 
767 	IPSEC_ASSERT(sav != NULL, ("null sav"));
768 
769 	printf("SA { refcnt=%u spi=%u seq=%u pid=%u flags=0x%x state=%s\n",
770 	    sav->refcnt, ntohl(sav->spi), sav->seq, (uint32_t)sav->pid,
771 	    sav->flags, kdebug_secasv_state(sav->state));
772 	kdebug_secash(sav->sah, "  ");
773 
774 	lft_c.addtime = sav->created;
775 	lft_c.allocations = (uint32_t)counter_u64_fetch(
776 	    sav->lft_c_allocations);
777 	lft_c.bytes = counter_u64_fetch(sav->lft_c_bytes);
778 	lft_c.usetime = sav->firstused;
779 	kdebug_sec_lifetime(&lft_c, "  c_");
780 	if (sav->lft_h != NULL)
781 		kdebug_sec_lifetime(sav->lft_h, "  h_");
782 	if (sav->lft_s != NULL)
783 		kdebug_sec_lifetime(sav->lft_s, "  s_");
784 
785 	if (sav->tdb_authalgxform != NULL)
786 		printf("  alg_auth=%s\n", sav->tdb_authalgxform->name);
787 	if (sav->key_auth != NULL)
788 		KEYDBG(DUMP,
789 		    kdebug_sadb_key((struct sadb_ext *)sav->key_auth));
790 	if (sav->tdb_encalgxform != NULL)
791 		printf("  alg_enc=%s\n", sav->tdb_encalgxform->name);
792 	if (sav->key_enc != NULL)
793 		KEYDBG(DUMP,
794 		    kdebug_sadb_key((struct sadb_ext *)sav->key_enc));
795 	if (sav->natt != NULL)
796 		kdebug_secnatt(sav->natt);
797 	if (sav->replay != NULL) {
798 		KEYDBG(DUMP,
799 		    SECASVAR_LOCK(sav);
800 		    kdebug_secreplay(sav->replay);
801 		    SECASVAR_UNLOCK(sav));
802 	}
803 	printf("}\n");
804 }
805 
806 void
807 kdebug_mbufhdr(const struct mbuf *m)
808 {
809 	/* sanity check */
810 	if (m == NULL)
811 		return;
812 
813 	printf("mbuf(%p){ m_next:%p m_nextpkt:%p m_data:%p "
814 	       "m_len:%d m_type:0x%02x m_flags:0x%02x }\n",
815 		m, m->m_next, m->m_nextpkt, m->m_data,
816 		m->m_len, m->m_type, m->m_flags);
817 
818 	if (m->m_flags & M_PKTHDR) {
819 		printf("  m_pkthdr{ len:%d rcvif:%p }\n",
820 		    m->m_pkthdr.len, m->m_pkthdr.rcvif);
821 	}
822 
823 	if (m->m_flags & M_EXT) {
824 		printf("  m_ext{ ext_buf:%p ext_free:%p "
825 		       "ext_size:%u ext_cnt:%p }\n",
826 			m->m_ext.ext_buf, m->m_ext.ext_free,
827 			m->m_ext.ext_size, m->m_ext.ext_cnt);
828 	}
829 
830 	return;
831 }
832 
833 void
834 kdebug_mbuf(const struct mbuf *m0)
835 {
836 	const struct mbuf *m = m0;
837 	int i, j;
838 
839 	for (j = 0; m; m = m->m_next) {
840 		kdebug_mbufhdr(m);
841 		printf("  m_data:\n");
842 		for (i = 0; i < m->m_len; i++) {
843 			if (i && i % 32 == 0)
844 				printf("\n");
845 			if (i % 4 == 0)
846 				printf(" ");
847 			printf("%02x", mtod(m, const u_char *)[i]);
848 			j++;
849 		}
850 		printf("\n");
851 	}
852 
853 	return;
854 }
855 
856 /* Return a printable string for the address. */
857 char *
858 ipsec_address(const union sockaddr_union* sa, char *buf, socklen_t size)
859 {
860 
861 	switch (sa->sa.sa_family) {
862 #ifdef INET
863 	case AF_INET:
864 		return (inet_ntop(AF_INET, &sa->sin.sin_addr, buf, size));
865 #endif /* INET */
866 #ifdef INET6
867 	case AF_INET6:
868 		if (IN6_IS_SCOPE_LINKLOCAL(&sa->sin6.sin6_addr)) {
869 			snprintf(buf, size, "%s%%%u", inet_ntop(AF_INET6,
870 			    &sa->sin6.sin6_addr, buf, size),
871 			    sa->sin6.sin6_scope_id);
872 			return (buf);
873 		} else
874 			return (inet_ntop(AF_INET6, &sa->sin6.sin6_addr,
875 			    buf, size));
876 #endif /* INET6 */
877 	case 0:
878 		return ("*");
879 	default:
880 		return ("(unknown address family)");
881 	}
882 }
883 
884 char *
885 ipsec_sa2str(struct secasvar *sav, char *buf, size_t size)
886 {
887 	char sbuf[IPSEC_ADDRSTRLEN], dbuf[IPSEC_ADDRSTRLEN];
888 
889 	snprintf(buf, size, "SA(SPI=%08lx src=%s dst=%s)",
890 	    (u_long)ntohl(sav->spi),
891 	    ipsec_address(&sav->sah->saidx.src, sbuf, sizeof(sbuf)),
892 	    ipsec_address(&sav->sah->saidx.dst, dbuf, sizeof(dbuf)));
893 	return (buf);
894 }
895 
896 #endif /* _KERNEL */
897 
898 void
899 kdebug_sockaddr(struct sockaddr *addr)
900 {
901 	char buf[IPSEC_ADDRSTRLEN];
902 
903 	/* sanity check */
904 	if (addr == NULL)
905 		panic("%s: NULL pointer was passed.\n", __func__);
906 
907 	switch (addr->sa_family) {
908 #ifdef INET
909 	case AF_INET: {
910 		struct sockaddr_in *sin;
911 
912 		sin = (struct sockaddr_in *)addr;
913 		inet_ntop(AF_INET, &sin->sin_addr, buf, sizeof(buf));
914 		break;
915 	}
916 #endif
917 #ifdef INET6
918 	case AF_INET6: {
919 		struct sockaddr_in6 *sin6;
920 
921 		sin6 = (struct sockaddr_in6 *)addr;
922 		if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
923 			snprintf(buf, sizeof(buf), "%s%%%u",
924 			    inet_ntop(AF_INET6, &sin6->sin6_addr, buf,
925 			    sizeof(buf)), sin6->sin6_scope_id);
926 		} else
927 			inet_ntop(AF_INET6, &sin6->sin6_addr, buf,
928 			    sizeof(buf));
929 		break;
930 	}
931 #endif
932 	default:
933 		sprintf(buf, "unknown");
934 	}
935 	printf("sockaddr{ len=%u family=%u addr=%s }\n", addr->sa_len,
936 	    addr->sa_family, buf);
937 }
938 
939 void
940 ipsec_bindump(caddr_t buf, int len)
941 {
942 	int i;
943 
944 	for (i = 0; i < len; i++)
945 		printf("%c", (unsigned char)buf[i]);
946 
947 	return;
948 }
949 
950 
951 void
952 ipsec_hexdump(caddr_t buf, int len)
953 {
954 	int i;
955 
956 	for (i = 0; i < len; i++) {
957 		if (i != 0 && i % 32 == 0) printf("\n");
958 		if (i % 4 == 0) printf(" ");
959 		printf("%02x", (unsigned char)buf[i]);
960 	}
961 #if 0
962 	if (i % 32 != 0) printf("\n");
963 #endif
964 
965 	return;
966 }
967