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[FreeBSD/FreeBSD.git] / lib / libipsec / pfkey_dump.c
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 <netinet6/ipsec.h>
39 #include <net/pfkeyv2.h>
40 #include <netkey/key_var.h>
41 #include <netkey/key_debug.h>
42
43 #include <netinet/in.h>
44 #include <netinet6/ipsec.h>
45 #include <arpa/inet.h>
46
47 #include <stdlib.h>
48 #include <unistd.h>
49 #include <stdio.h>
50 #include <string.h>
51 #include <time.h>
52 #include <netdb.h>
53
54 #include "ipsec_strerror.h"
55 #include "libpfkey.h"
56
57 /* cope with old kame headers - ugly */
58 #ifndef SADB_X_AALG_MD5
59 #define SADB_X_AALG_MD5         SADB_AALG_MD5   
60 #endif
61 #ifndef SADB_X_AALG_SHA
62 #define SADB_X_AALG_SHA         SADB_AALG_SHA
63 #endif
64 #ifndef SADB_X_AALG_NULL
65 #define SADB_X_AALG_NULL        SADB_AALG_NULL
66 #endif
67
68 #ifndef SADB_X_EALG_BLOWFISHCBC
69 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
70 #endif
71 #ifndef SADB_X_EALG_CAST128CBC
72 #define SADB_X_EALG_CAST128CBC  SADB_EALG_CAST128CBC
73 #endif
74 #ifndef SADB_X_EALG_RC5CBC
75 #ifdef SADB_EALG_RC5CBC
76 #define SADB_X_EALG_RC5CBC      SADB_EALG_RC5CBC
77 #endif
78 #endif
79
80 #define GETMSGSTR(str, num) \
81 do { \
82         if (sizeof((str)[0]) == 0 \
83          || num >= sizeof(str)/sizeof((str)[0])) \
84                 printf("%u ", (num)); \
85         else if (strlen((str)[(num)]) == 0) \
86                 printf("%u ", (num)); \
87         else \
88                 printf("%s ", (str)[(num)]); \
89 } while (0)
90
91 #define GETMSGV2S(v2s, num) \
92 do { \
93         struct val2str *p;  \
94         for (p = (v2s); p && p->str; p++) { \
95                 if (p->val == (num)) \
96                         break; \
97         } \
98         if (p && p->str) \
99                 printf("%s ", p->str); \
100         else \
101                 printf("%u ", (num)); \
102 } while (0)
103
104 static char *str_ipaddr(struct sockaddr *);
105 static char *str_prefport(u_int, u_int, u_int, u_int);
106 static void str_upperspec(u_int, u_int, u_int);
107 static char *str_time(time_t);
108 static void str_lifetime_byte(struct sadb_lifetime *, char *);
109
110 struct val2str {
111         int val;
112         const char *str;
113 };
114
115 /*
116  * Must to be re-written about following strings.
117  */
118 static char *str_satype[] = {
119         "unspec",
120         "unknown",
121         "ah",
122         "esp",
123         "unknown",
124         "rsvp",
125         "ospfv2",
126         "ripv2",
127         "mip",
128         "ipcomp",
129         "policy",
130         "tcp"
131 };
132
133 static char *str_mode[] = {
134         "any",
135         "transport",
136         "tunnel",
137 };
138
139 static char *str_state[] = {
140         "larval",
141         "mature",
142         "dying",
143         "dead",
144 };
145
146 static struct val2str str_alg_auth[] = {
147         { SADB_AALG_NONE, "none", },
148         { SADB_AALG_MD5HMAC, "hmac-md5", },
149         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
150         { SADB_X_AALG_MD5, "md5", },
151         { SADB_X_AALG_SHA, "sha", },
152         { SADB_X_AALG_NULL, "null", },
153         { SADB_X_AALG_TCP_MD5, "tcp-md5", },
154 #ifdef SADB_X_AALG_SHA2_256
155         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
156 #endif
157 #ifdef SADB_X_AALG_SHA2_384
158         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
159 #endif
160 #ifdef SADB_X_AALG_SHA2_512
161         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
162 #endif
163 #ifdef SADB_X_AALG_RIPEMD160HMAC
164         { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
165 #endif
166 #ifdef SADB_X_AALG_AES_XCBC_MAC
167         { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
168 #endif
169         { -1, NULL, },
170 };
171
172 static struct val2str str_alg_enc[] = {
173         { SADB_EALG_NONE, "none", },
174         { SADB_EALG_DESCBC, "des-cbc", },
175         { SADB_EALG_3DESCBC, "3des-cbc", },
176         { SADB_EALG_NULL, "null", },
177 #ifdef SADB_X_EALG_RC5CBC
178         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
179 #endif
180         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
181         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
182 #ifdef SADB_X_EALG_RIJNDAELCBC
183         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
184 #endif
185 #ifdef SADB_X_EALG_TWOFISHCBC
186         { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
187 #endif
188 #ifdef SADB_X_EALG_AESCTR
189         { SADB_X_EALG_AESCTR, "aes-ctr", },
190 #endif
191 #ifdef SADB_X_EALG_CAMELLIACBC
192         { SADB_X_EALG_CAMELLIACBC, "camellia-cbc", },
193 #endif
194         { -1, NULL, },
195 };
196
197 static struct val2str str_alg_comp[] = {
198         { SADB_X_CALG_NONE, "none", },
199         { SADB_X_CALG_OUI, "oui", },
200         { SADB_X_CALG_DEFLATE, "deflate", },
201         { SADB_X_CALG_LZS, "lzs", },
202         { -1, NULL, },
203 };
204
205 /*
206  * dump SADB_MSG formated.  For debugging, you should use kdebug_sadb().
207  */
208 void
209 pfkey_sadump(m)
210         struct sadb_msg *m;
211 {
212         caddr_t mhp[SADB_EXT_MAX + 1];
213         struct sadb_sa *m_sa;
214         struct sadb_x_sa2 *m_sa2;
215         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
216         struct sadb_address *m_saddr, *m_daddr, *m_paddr;
217         struct sadb_key *m_auth, *m_enc;
218         struct sadb_ident *m_sid, *m_did;
219         struct sadb_sens *m_sens;
220
221         /* check pfkey message. */
222         if (pfkey_align(m, mhp)) {
223                 printf("%s\n", ipsec_strerror());
224                 return;
225         }
226         if (pfkey_check(mhp)) {
227                 printf("%s\n", ipsec_strerror());
228                 return;
229         }
230
231         m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
232         m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
233         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
234         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
235         m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
236         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
237         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
238         m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
239         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
240         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
241         m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
242         m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
243         m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
244
245         /* source address */
246         if (m_saddr == NULL) {
247                 printf("no ADDRESS_SRC extension.\n");
248                 return;
249         }
250         printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
251
252         /* destination address */
253         if (m_daddr == NULL) {
254                 printf("no ADDRESS_DST extension.\n");
255                 return;
256         }
257         printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
258
259         /* SA type */
260         if (m_sa == NULL) {
261                 printf("no SA extension.\n");
262                 return;
263         }
264         if (m_sa2 == NULL) {
265                 printf("no SA2 extension.\n");
266                 return;
267         }
268         printf("\n\t");
269
270         GETMSGSTR(str_satype, m->sadb_msg_satype);
271
272         printf("mode=");
273         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
274
275         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
276                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
277                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
278                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
279                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
280
281         /* encryption key */
282         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
283                 printf("\tC: ");
284                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
285         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
286                 if (m_enc != NULL) {
287                         printf("\tE: ");
288                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
289                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
290                                       m_enc->sadb_key_bits / 8);
291                         printf("\n");
292                 }
293         }
294
295         /* authentication key */
296         if (m_auth != NULL) {
297                 printf("\tA: ");
298                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
299                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
300                               m_auth->sadb_key_bits / 8);
301                 printf("\n");
302         }
303
304         /* replay windoe size & flags */
305         printf("\tseq=0x%08x replay=%u flags=0x%08x ",
306                 m_sa2->sadb_x_sa2_sequence,
307                 m_sa->sadb_sa_replay,
308                 m_sa->sadb_sa_flags);
309
310         /* state */
311         printf("state=");
312         GETMSGSTR(str_state, m_sa->sadb_sa_state);
313         printf("\n");
314
315         /* lifetime */
316         if (m_lftc != NULL) {
317                 time_t tmp_time = time(0);
318
319                 printf("\tcreated: %s",
320                         str_time(m_lftc->sadb_lifetime_addtime));
321                 printf("\tcurrent: %s\n", str_time(tmp_time));
322                 printf("\tdiff: %lu(s)",
323                         (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
324                         0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
325
326                 printf("\thard: %lu(s)",
327                         (u_long)(m_lfth == NULL ?
328                         0 : m_lfth->sadb_lifetime_addtime));
329                 printf("\tsoft: %lu(s)\n",
330                         (u_long)(m_lfts == NULL ?
331                         0 : m_lfts->sadb_lifetime_addtime));
332
333                 printf("\tlast: %s",
334                         str_time(m_lftc->sadb_lifetime_usetime));
335                 printf("\thard: %lu(s)",
336                         (u_long)(m_lfth == NULL ?
337                         0 : m_lfth->sadb_lifetime_usetime));
338                 printf("\tsoft: %lu(s)\n",
339                         (u_long)(m_lfts == NULL ?
340                         0 : m_lfts->sadb_lifetime_usetime));
341
342                 str_lifetime_byte(m_lftc, "current");
343                 str_lifetime_byte(m_lfth, "hard");
344                 str_lifetime_byte(m_lfts, "soft");
345                 printf("\n");
346
347                 printf("\tallocated: %lu",
348                         (unsigned long)m_lftc->sadb_lifetime_allocations);
349                 printf("\thard: %lu",
350                         (u_long)(m_lfth == NULL ?
351                         0 : m_lfth->sadb_lifetime_allocations));
352                 printf("\tsoft: %lu\n",
353                         (u_long)(m_lfts == NULL ?
354                         0 : m_lfts->sadb_lifetime_allocations));
355         }
356
357         printf("\tsadb_seq=%lu pid=%lu ",
358                 (u_long)m->sadb_msg_seq,
359                 (u_long)m->sadb_msg_pid);
360
361         /* XXX DEBUG */
362         printf("refcnt=%u\n", m->sadb_msg_reserved);
363
364         return;
365 }
366
367 void
368 pfkey_spdump(m)
369         struct sadb_msg *m;
370 {
371         char pbuf[NI_MAXSERV];
372         caddr_t mhp[SADB_EXT_MAX + 1];
373         struct sadb_address *m_saddr, *m_daddr;
374         struct sadb_x_policy *m_xpl;
375         struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
376         struct sockaddr *sa;
377         u_int16_t sport = 0, dport = 0;
378
379         /* check pfkey message. */
380         if (pfkey_align(m, mhp)) {
381                 printf("%s\n", ipsec_strerror());
382                 return;
383         }
384         if (pfkey_check(mhp)) {
385                 printf("%s\n", ipsec_strerror());
386                 return;
387         }
388
389         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
390         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
391         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
392         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
393         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
394
395         if (m_saddr && m_daddr) {
396                 /* source address */
397                 sa = (struct sockaddr *)(m_saddr + 1);
398                 switch (sa->sa_family) {
399                 case AF_INET:
400                 case AF_INET6:
401                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
402                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
403                                 sport = 0;      /*XXX*/
404                         else
405                                 sport = atoi(pbuf);
406                         printf("%s%s ", str_ipaddr(sa),
407                                 str_prefport(sa->sa_family,
408                                     m_saddr->sadb_address_prefixlen, sport,
409                                     m_saddr->sadb_address_proto));
410                         break;
411                 default:
412                         printf("unknown-af ");
413                         break;
414                 }
415
416                 /* destination address */
417                 sa = (struct sockaddr *)(m_daddr + 1);
418                 switch (sa->sa_family) {
419                 case AF_INET:
420                 case AF_INET6:
421                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
422                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
423                                 dport = 0;      /*XXX*/
424                         else
425                                 dport = atoi(pbuf);
426                         printf("%s%s ", str_ipaddr(sa),
427                                 str_prefport(sa->sa_family,
428                                     m_daddr->sadb_address_prefixlen, dport,
429                                     m_saddr->sadb_address_proto));
430                         break;
431                 default:
432                         printf("unknown-af ");
433                         break;
434                 }
435
436                 /* upper layer protocol */
437                 if (m_saddr->sadb_address_proto !=
438                     m_daddr->sadb_address_proto) {
439                         printf("upper layer protocol mismatched.\n");
440                         return;
441                 }
442                 str_upperspec(m_saddr->sadb_address_proto, sport, dport);
443         }
444         else
445                 printf("(no selector, probably per-socket policy) ");
446
447         /* policy */
448     {
449         char *d_xpl;
450
451         if (m_xpl == NULL) {
452                 printf("no X_POLICY extension.\n");
453                 return;
454         }
455         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
456
457         /* dump SPD */
458         printf("\n\t%s\n", d_xpl);
459         free(d_xpl);
460     }
461
462         /* lifetime */
463         if (m_lftc) {
464                 printf("\tcreated: %s  ",
465                         str_time(m_lftc->sadb_lifetime_addtime));
466                 printf("lastused: %s\n",
467                         str_time(m_lftc->sadb_lifetime_usetime));
468         }
469         if (m_lfth) {
470                 printf("\tlifetime: %lu(s) ",
471                         (u_long)m_lfth->sadb_lifetime_addtime);
472                 printf("validtime: %lu(s)\n",
473                         (u_long)m_lfth->sadb_lifetime_usetime);
474         }
475
476
477         printf("\tspid=%ld seq=%ld pid=%ld\n",
478                 (u_long)m_xpl->sadb_x_policy_id,
479                 (u_long)m->sadb_msg_seq,
480                 (u_long)m->sadb_msg_pid);
481
482         /* XXX TEST */
483         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
484
485         return;
486 }
487
488 /*
489  * set "ipaddress" to buffer.
490  */
491 static char *
492 str_ipaddr(sa)
493         struct sockaddr *sa;
494 {
495         static char buf[NI_MAXHOST];
496         const int niflag = NI_NUMERICHOST;
497
498         if (sa == NULL)
499                 return "";
500
501         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
502                 return buf;
503         return NULL;
504 }
505
506 /*
507  * set "/prefix[port number]" to buffer.
508  */
509 static char *
510 str_prefport(family, pref, port, ulp)
511         u_int family, pref, port, ulp;
512 {
513         static char buf[128];
514         char prefbuf[128];
515         char portbuf[128];
516         int plen;
517
518         switch (family) {
519         case AF_INET:
520                 plen = sizeof(struct in_addr) << 3;
521                 break;
522         case AF_INET6:
523                 plen = sizeof(struct in6_addr) << 3;
524                 break;
525         default:
526                 return "?";
527         }
528
529         if (pref == plen)
530                 prefbuf[0] = '\0';
531         else
532                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
533
534         if (ulp == IPPROTO_ICMPV6)
535                 memset(portbuf, 0, sizeof(portbuf));
536         else {
537                 if (port == IPSEC_PORT_ANY)
538                         snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
539                 else
540                         snprintf(portbuf, sizeof(portbuf), "[%u]", port);
541         }
542
543         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
544
545         return buf;
546 }
547
548 static void
549 str_upperspec(ulp, p1, p2)
550         u_int ulp, p1, p2;
551 {
552         if (ulp == IPSEC_ULPROTO_ANY)
553                 printf("any");
554         else if (ulp == IPPROTO_ICMPV6) {
555                 printf("icmp6");
556                 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
557                         printf(" %u,%u", p1, p2);
558         } else {
559                 struct protoent *ent;
560
561                 switch (ulp) {
562                 case IPPROTO_IPV4:
563                         printf("ip4");
564                         break;
565                 default:
566                         ent = getprotobynumber(ulp);
567                         if (ent)
568                                 printf("%s", ent->p_name);
569                         else
570                                 printf("%u", ulp);
571
572                         endprotoent();
573                         break;
574                 }
575         }
576 }
577
578 /*
579  * set "Mon Day Time Year" to buffer
580  */
581 static char *
582 str_time(t)
583         time_t t;
584 {
585         static char buf[128];
586
587         if (t == 0) {
588                 int i = 0;
589                 for (;i < 20;) buf[i++] = ' ';
590         } else {
591                 char *t0;
592                 t0 = ctime(&t);
593                 memcpy(buf, t0 + 4, 20);
594         }
595
596         buf[20] = '\0';
597
598         return(buf);
599 }
600
601 static void
602 str_lifetime_byte(x, str)
603         struct sadb_lifetime *x;
604         char *str;
605 {
606         double y;
607         char *unit;
608         int w;
609
610         if (x == NULL) {
611                 printf("\t%s: 0(bytes)", str);
612                 return;
613         }
614
615 #if 0
616         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
617                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
618                 unit = "M";
619                 w = 1;
620         } else if ((x->sadb_lifetime_bytes) / 1024) {
621                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
622                 unit = "K";
623                 w = 1;
624         } else {
625                 y = (x->sadb_lifetime_bytes) * 1.0;
626                 unit = "";
627                 w = 0;
628         }
629 #else
630         y = (x->sadb_lifetime_bytes) * 1.0;
631         unit = "";
632         w = 0;
633 #endif
634         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
635 }