1 /* $KAME: pfkey_dump.c,v 1.45 2003/09/08 10:14:56 itojun Exp $ */
2
3 /*
4 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/types.h>
36 #include <sys/param.h>
37 #include <sys/socket.h>
38 #include <netipsec/ipsec.h>
39 #include <net/pfkeyv2.h>
40 #include <netipsec/key_var.h>
41 #include <netipsec/key_debug.h>
42
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
45
46 #include <stdlib.h>
47 #include <unistd.h>
48 #include <stdio.h>
49 #include <string.h>
50 #include <time.h>
51 #include <netdb.h>
52
53 #include "ipsec_strerror.h"
54 #include "libpfkey.h"
55
56 /* cope with old kame headers - ugly */
57 #ifndef SADB_X_AALG_MD5
58 #define SADB_X_AALG_MD5 SADB_AALG_MD5
59 #endif
60 #ifndef SADB_X_AALG_SHA
61 #define SADB_X_AALG_SHA SADB_AALG_SHA
62 #endif
63 #ifndef SADB_X_AALG_NULL
64 #define SADB_X_AALG_NULL SADB_AALG_NULL
65 #endif
66
67 #ifndef SADB_X_EALG_BLOWFISHCBC
68 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
69 #endif
70 #ifndef SADB_X_EALG_CAST128CBC
71 #define SADB_X_EALG_CAST128CBC SADB_EALG_CAST128CBC
72 #endif
73 #ifndef SADB_X_EALG_RC5CBC
74 #ifdef SADB_EALG_RC5CBC
75 #define SADB_X_EALG_RC5CBC SADB_EALG_RC5CBC
76 #endif
77 #endif
78
79 #define GETMSGSTR(str, num) \
80 do { \
81 if (sizeof((str)[0]) == 0 \
82 || num >= sizeof(str)/sizeof((str)[0])) \
83 printf("%u ", (num)); \
84 else if (strlen((str)[(num)]) == 0) \
85 printf("%u ", (num)); \
86 else \
87 printf("%s ", (str)[(num)]); \
88 } while (0)
89
90 #define GETMSGV2S(v2s, num) \
91 do { \
92 struct val2str *p; \
93 for (p = (v2s); p && p->str; p++) { \
94 if (p->val == (num)) \
95 break; \
96 } \
97 if (p && p->str) \
98 printf("%s ", p->str); \
99 else \
100 printf("%u ", (num)); \
101 } while (0)
102
103 static char *str_ipaddr(struct sockaddr *);
104 static char *str_prefport(u_int, u_int, u_int, u_int);
105 static void str_upperspec(u_int, u_int, u_int);
106 static char *str_time(time_t);
107 static void str_lifetime_byte(struct sadb_lifetime *, char *);
108
109 struct val2str {
110 int val;
111 const char *str;
112 };
113
114 /*
115 * Must to be re-written about following strings.
116 */
117 static char *str_satype[] = {
118 "unspec",
119 "unknown",
120 "ah",
121 "esp",
122 "unknown",
123 "rsvp",
124 "ospfv2",
125 "ripv2",
126 "mip",
127 "ipcomp",
128 "policy",
129 "tcp"
130 };
131
132 static char *str_mode[] = {
133 "any",
134 "transport",
135 "tunnel",
136 };
137
138 static char *str_state[] = {
139 "larval",
140 "mature",
141 "dying",
142 "dead",
143 };
144
145 static struct val2str str_alg_auth[] = {
146 { SADB_AALG_NONE, "none", },
147 { SADB_AALG_MD5HMAC, "hmac-md5", },
148 { SADB_AALG_SHA1HMAC, "hmac-sha1", },
149 { SADB_X_AALG_MD5, "md5", },
150 { SADB_X_AALG_SHA, "sha", },
151 { SADB_X_AALG_NULL, "null", },
152 { SADB_X_AALG_TCP_MD5, "tcp-md5", },
153 #ifdef SADB_X_AALG_SHA2_256
154 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
155 #endif
156 #ifdef SADB_X_AALG_SHA2_384
157 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
158 #endif
159 #ifdef SADB_X_AALG_SHA2_512
160 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
161 #endif
162 #ifdef SADB_X_AALG_RIPEMD160HMAC
163 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
164 #endif
165 #ifdef SADB_X_AALG_AES_XCBC_MAC
166 { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
167 #endif
168 { -1, NULL, },
169 };
170
171 static struct val2str str_alg_enc[] = {
172 { SADB_EALG_NONE, "none", },
173 { SADB_EALG_DESCBC, "des-cbc", },
174 { SADB_EALG_3DESCBC, "3des-cbc", },
175 { SADB_EALG_NULL, "null", },
176 #ifdef SADB_X_EALG_RC5CBC
177 { SADB_X_EALG_RC5CBC, "rc5-cbc", },
178 #endif
179 { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
180 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
181 #ifdef SADB_X_EALG_RIJNDAELCBC
182 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
183 #endif
184 #ifdef SADB_X_EALG_TWOFISHCBC
185 { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
186 #endif
187 #ifdef SADB_X_EALG_AESCTR
188 { SADB_X_EALG_AESCTR, "aes-ctr", },
189 #endif
190 #ifdef SADB_X_EALG_AESGCM16
191 { SADB_X_EALG_AESGCM16, "aes-gcm-16", },
192 #endif
193 #ifdef SADB_X_EALG_CAMELLIACBC
194 { SADB_X_EALG_CAMELLIACBC, "camellia-cbc", },
195 #endif
196 { -1, NULL, },
197 };
198
199 static struct val2str str_alg_comp[] = {
200 { SADB_X_CALG_NONE, "none", },
201 { SADB_X_CALG_OUI, "oui", },
202 { SADB_X_CALG_DEFLATE, "deflate", },
203 { SADB_X_CALG_LZS, "lzs", },
204 { -1, NULL, },
205 };
206
207 /*
208 * dump SADB_MSG formated. For debugging, you should use kdebug_sadb().
209 */
210 void
pfkey_sadump(m)211 pfkey_sadump(m)
212 struct sadb_msg *m;
213 {
214 caddr_t mhp[SADB_EXT_MAX + 1];
215 struct sadb_sa *m_sa;
216 struct sadb_x_sa2 *m_sa2;
217 struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
218 struct sadb_address *m_saddr, *m_daddr, *m_paddr;
219 struct sadb_key *m_auth, *m_enc;
220 struct sadb_ident *m_sid, *m_did;
221 struct sadb_sens *m_sens;
222
223 /* check pfkey message. */
224 if (pfkey_align(m, mhp)) {
225 printf("%s\n", ipsec_strerror());
226 return;
227 }
228 if (pfkey_check(mhp)) {
229 printf("%s\n", ipsec_strerror());
230 return;
231 }
232
233 m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
234 m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
235 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
236 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
237 m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
238 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
239 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
240 m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
241 m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
242 m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
243 m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
244 m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
245 m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
246
247 /* source address */
248 if (m_saddr == NULL) {
249 printf("no ADDRESS_SRC extension.\n");
250 return;
251 }
252 printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
253
254 /* destination address */
255 if (m_daddr == NULL) {
256 printf("no ADDRESS_DST extension.\n");
257 return;
258 }
259 printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
260
261 /* SA type */
262 if (m_sa == NULL) {
263 printf("no SA extension.\n");
264 return;
265 }
266 if (m_sa2 == NULL) {
267 printf("no SA2 extension.\n");
268 return;
269 }
270 printf("\n\t");
271
272 GETMSGSTR(str_satype, m->sadb_msg_satype);
273
274 printf("mode=");
275 GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
276
277 printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
278 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
279 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
280 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
281 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
282
283 /* encryption key */
284 if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
285 printf("\tC: ");
286 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
287 } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
288 if (m_enc != NULL) {
289 printf("\tE: ");
290 GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
291 ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
292 m_enc->sadb_key_bits / 8);
293 printf("\n");
294 }
295 }
296
297 /* authentication key */
298 if (m_auth != NULL) {
299 printf("\tA: ");
300 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
301 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
302 m_auth->sadb_key_bits / 8);
303 printf("\n");
304 }
305
306 /* replay windoe size & flags */
307 printf("\tseq=0x%08x replay=%u flags=0x%08x ",
308 m_sa2->sadb_x_sa2_sequence,
309 m_sa->sadb_sa_replay,
310 m_sa->sadb_sa_flags);
311
312 /* state */
313 printf("state=");
314 GETMSGSTR(str_state, m_sa->sadb_sa_state);
315 printf("\n");
316
317 /* lifetime */
318 if (m_lftc != NULL) {
319 time_t tmp_time = time(0);
320
321 printf("\tcreated: %s",
322 str_time(m_lftc->sadb_lifetime_addtime));
323 printf("\tcurrent: %s\n", str_time(tmp_time));
324 printf("\tdiff: %lu(s)",
325 (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
326 0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
327
328 printf("\thard: %lu(s)",
329 (u_long)(m_lfth == NULL ?
330 0 : m_lfth->sadb_lifetime_addtime));
331 printf("\tsoft: %lu(s)\n",
332 (u_long)(m_lfts == NULL ?
333 0 : m_lfts->sadb_lifetime_addtime));
334
335 printf("\tlast: %s",
336 str_time(m_lftc->sadb_lifetime_usetime));
337 printf("\thard: %lu(s)",
338 (u_long)(m_lfth == NULL ?
339 0 : m_lfth->sadb_lifetime_usetime));
340 printf("\tsoft: %lu(s)\n",
341 (u_long)(m_lfts == NULL ?
342 0 : m_lfts->sadb_lifetime_usetime));
343
344 str_lifetime_byte(m_lftc, "current");
345 str_lifetime_byte(m_lfth, "hard");
346 str_lifetime_byte(m_lfts, "soft");
347 printf("\n");
348
349 printf("\tallocated: %lu",
350 (unsigned long)m_lftc->sadb_lifetime_allocations);
351 printf("\thard: %lu",
352 (u_long)(m_lfth == NULL ?
353 0 : m_lfth->sadb_lifetime_allocations));
354 printf("\tsoft: %lu\n",
355 (u_long)(m_lfts == NULL ?
356 0 : m_lfts->sadb_lifetime_allocations));
357 }
358
359 printf("\tsadb_seq=%lu pid=%lu ",
360 (u_long)m->sadb_msg_seq,
361 (u_long)m->sadb_msg_pid);
362
363 /* XXX DEBUG */
364 printf("refcnt=%u\n", m->sadb_msg_reserved);
365
366 return;
367 }
368
369 void
pfkey_spdump(m)370 pfkey_spdump(m)
371 struct sadb_msg *m;
372 {
373 char pbuf[NI_MAXSERV];
374 caddr_t mhp[SADB_EXT_MAX + 1];
375 struct sadb_address *m_saddr, *m_daddr;
376 struct sadb_x_policy *m_xpl;
377 struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
378 struct sockaddr *sa;
379 u_int16_t sport = 0, dport = 0;
380
381 /* check pfkey message. */
382 if (pfkey_align(m, mhp)) {
383 printf("%s\n", ipsec_strerror());
384 return;
385 }
386 if (pfkey_check(mhp)) {
387 printf("%s\n", ipsec_strerror());
388 return;
389 }
390
391 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
392 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
393 m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
394 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
395 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
396
397 if (m_saddr && m_daddr) {
398 /* source address */
399 sa = (struct sockaddr *)(m_saddr + 1);
400 switch (sa->sa_family) {
401 case AF_INET:
402 case AF_INET6:
403 if (getnameinfo(sa, sa->sa_len, NULL, 0,
404 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
405 sport = 0; /*XXX*/
406 else
407 sport = atoi(pbuf);
408 printf("%s%s ", str_ipaddr(sa),
409 str_prefport(sa->sa_family,
410 m_saddr->sadb_address_prefixlen, sport,
411 m_saddr->sadb_address_proto));
412 break;
413 default:
414 printf("unknown-af ");
415 break;
416 }
417
418 /* destination address */
419 sa = (struct sockaddr *)(m_daddr + 1);
420 switch (sa->sa_family) {
421 case AF_INET:
422 case AF_INET6:
423 if (getnameinfo(sa, sa->sa_len, NULL, 0,
424 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
425 dport = 0; /*XXX*/
426 else
427 dport = atoi(pbuf);
428 printf("%s%s ", str_ipaddr(sa),
429 str_prefport(sa->sa_family,
430 m_daddr->sadb_address_prefixlen, dport,
431 m_saddr->sadb_address_proto));
432 break;
433 default:
434 printf("unknown-af ");
435 break;
436 }
437
438 /* upper layer protocol */
439 if (m_saddr->sadb_address_proto !=
440 m_daddr->sadb_address_proto) {
441 printf("upper layer protocol mismatched.\n");
442 return;
443 }
444 str_upperspec(m_saddr->sadb_address_proto, sport, dport);
445 }
446 else
447 printf("(no selector, probably per-socket policy) ");
448
449 /* policy */
450 {
451 char *d_xpl;
452
453 if (m_xpl == NULL) {
454 printf("no X_POLICY extension.\n");
455 return;
456 }
457 d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
458
459 /* dump SPD */
460 printf("\n\t%s\n", d_xpl);
461 free(d_xpl);
462 }
463
464 /* lifetime */
465 if (m_lftc) {
466 printf("\tcreated: %s ",
467 str_time(m_lftc->sadb_lifetime_addtime));
468 printf("lastused: %s\n",
469 str_time(m_lftc->sadb_lifetime_usetime));
470 }
471 if (m_lfth) {
472 printf("\tlifetime: %lu(s) ",
473 (u_long)m_lfth->sadb_lifetime_addtime);
474 printf("validtime: %lu(s)\n",
475 (u_long)m_lfth->sadb_lifetime_usetime);
476 }
477
478
479 printf("\tspid=%ld seq=%ld pid=%ld\n",
480 (u_long)m_xpl->sadb_x_policy_id,
481 (u_long)m->sadb_msg_seq,
482 (u_long)m->sadb_msg_pid);
483
484 /* XXX TEST */
485 printf("\trefcnt=%u\n", m->sadb_msg_reserved);
486
487 return;
488 }
489
490 /*
491 * set "ipaddress" to buffer.
492 */
493 static char *
str_ipaddr(sa)494 str_ipaddr(sa)
495 struct sockaddr *sa;
496 {
497 static char buf[NI_MAXHOST];
498 const int niflag = NI_NUMERICHOST;
499
500 if (sa == NULL)
501 return "";
502
503 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
504 return buf;
505 return NULL;
506 }
507
508 /*
509 * set "/prefix[port number]" to buffer.
510 */
511 static char *
str_prefport(family,pref,port,ulp)512 str_prefport(family, pref, port, ulp)
513 u_int family, pref, port, ulp;
514 {
515 static char buf[128];
516 char prefbuf[128];
517 char portbuf[128];
518 int plen;
519
520 switch (family) {
521 case AF_INET:
522 plen = sizeof(struct in_addr) << 3;
523 break;
524 case AF_INET6:
525 plen = sizeof(struct in6_addr) << 3;
526 break;
527 default:
528 return "?";
529 }
530
531 if (pref == plen)
532 prefbuf[0] = '\0';
533 else
534 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
535
536 if (ulp == IPPROTO_ICMPV6)
537 memset(portbuf, 0, sizeof(portbuf));
538 else {
539 if (port == IPSEC_PORT_ANY)
540 snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
541 else
542 snprintf(portbuf, sizeof(portbuf), "[%u]", port);
543 }
544
545 snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
546
547 return buf;
548 }
549
550 static void
str_upperspec(ulp,p1,p2)551 str_upperspec(ulp, p1, p2)
552 u_int ulp, p1, p2;
553 {
554 if (ulp == IPSEC_ULPROTO_ANY)
555 printf("any");
556 else if (ulp == IPPROTO_ICMPV6) {
557 printf("icmp6");
558 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
559 printf(" %u,%u", p1, p2);
560 } else {
561 struct protoent *ent;
562
563 switch (ulp) {
564 case IPPROTO_IPV4:
565 printf("ip4");
566 break;
567 default:
568 ent = getprotobynumber(ulp);
569 if (ent)
570 printf("%s", ent->p_name);
571 else
572 printf("%u", ulp);
573
574 endprotoent();
575 break;
576 }
577 }
578 }
579
580 /*
581 * set "Mon Day Time Year" to buffer
582 */
583 static char *
str_time(t)584 str_time(t)
585 time_t t;
586 {
587 static char buf[128];
588
589 if (t == 0) {
590 int i = 0;
591 for (;i < 20;) buf[i++] = ' ';
592 } else {
593 char *t0;
594 t0 = ctime(&t);
595 memcpy(buf, t0 + 4, 20);
596 }
597
598 buf[20] = '\0';
599
600 return(buf);
601 }
602
603 static void
str_lifetime_byte(x,str)604 str_lifetime_byte(x, str)
605 struct sadb_lifetime *x;
606 char *str;
607 {
608 double y;
609 char *unit;
610 int w;
611
612 if (x == NULL) {
613 printf("\t%s: 0(bytes)", str);
614 return;
615 }
616
617 #if 0
618 if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
619 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
620 unit = "M";
621 w = 1;
622 } else if ((x->sadb_lifetime_bytes) / 1024) {
623 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
624 unit = "K";
625 w = 1;
626 } else {
627 y = (x->sadb_lifetime_bytes) * 1.0;
628 unit = "";
629 w = 0;
630 }
631 #else
632 y = (x->sadb_lifetime_bytes) * 1.0;
633 unit = "";
634 w = 0;
635 #endif
636 printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
637 }
638