hammer2 - Messaging layer separation work part 5
[dragonfly.git] / lib / libipsec / pfkey_dump.c
1 /*      $FreeBSD: src/lib/libipsec/pfkey_dump.c,v 1.1.2.4 2003/04/27 00:03:36 sumikawa Exp $    */
2 /*      $KAME: pfkey_dump.c,v 1.28 2001/06/27 10:46:51 sakane Exp $     */
3
4 /*
5  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 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 #include <sys/types.h>
34 #include <sys/param.h>
35 #include <sys/socket.h>
36 #include <netinet6/ipsec.h>
37 #include <net/pfkeyv2.h>
38 #include <netkey/key_var.h>
39 #include <netkey/key_debug.h>
40
41 #include <netinet/in.h>
42 #include <arpa/inet.h>
43
44 #include <stdlib.h>
45 #include <unistd.h>
46 #include <stdio.h>
47 #include <string.h>
48 #include <time.h>
49 #include <netdb.h>
50
51 #include "ipsec_strerror.h"
52 #include "libpfkey.h"
53
54 /* cope with old kame headers - ugly */
55 #ifndef SADB_X_AALG_MD5
56 #define SADB_X_AALG_MD5         SADB_AALG_MD5   
57 #endif
58 #ifndef SADB_X_AALG_SHA
59 #define SADB_X_AALG_SHA         SADB_AALG_SHA
60 #endif
61 #ifndef SADB_X_AALG_NULL
62 #define SADB_X_AALG_NULL        SADB_AALG_NULL
63 #endif
64
65 #ifndef SADB_X_EALG_BLOWFISHCBC
66 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
67 #endif
68 #ifndef SADB_X_EALG_CAST128CBC
69 #define SADB_X_EALG_CAST128CBC  SADB_EALG_CAST128CBC
70 #endif
71 #ifndef SADB_X_EALG_RC5CBC
72 #ifdef SADB_EALG_RC5CBC
73 #define SADB_X_EALG_RC5CBC      SADB_EALG_RC5CBC
74 #endif
75 #endif
76
77 #define GETMSGSTR(str, num) \
78 do { \
79         if (sizeof((str)[0]) == 0 \
80          || num >= sizeof(str)/sizeof((str)[0])) \
81                 printf("%d ", (num)); \
82         else if (strlen((str)[(num)]) == 0) \
83                 printf("%d ", (num)); \
84         else \
85                 printf("%s ", (str)[(num)]); \
86 } while (0)
87
88 #define GETMSGV2S(v2s, num) \
89 do { \
90         struct val2str *p;  \
91         for (p = (v2s); p && p->str; p++) { \
92                 if (p->val == (num)) \
93                         break; \
94         } \
95         if (p && p->str) \
96                 printf("%s ", p->str); \
97         else \
98                 printf("%d ", (num)); \
99 } while (0)
100
101 static char *str_ipaddr (struct sockaddr *);
102 static char *str_prefport (u_int, u_int, u_int);
103 static char *str_time (time_t);
104 static void str_lifetime_byte (struct sadb_lifetime *, char *);
105
106 struct val2str {
107         int val;
108         const char *str;
109 };
110
111 /*
112  * Must to be re-written about following strings.
113  */
114 static char *str_satype[] = {
115         "unspec",
116         "unknown",
117         "ah",
118         "esp",
119         "unknown",
120         "rsvp",
121         "ospfv2",
122         "ripv2",
123         "mip",
124         "ipcomp",
125         "policy",
126         "tcp",
127 };
128
129 static char *str_mode[] = {
130         "any",
131         "transport",
132         "tunnel",
133 };
134
135 static char *str_upper[] = {
136 /*0*/   "ip", "icmp", "igmp", "ggp", "ip4",
137         "", "tcp", "", "egp", "",
138 /*10*/  "", "", "", "", "",
139         "", "", "udp", "", "",
140 /*20*/  "", "", "idp", "", "",
141         "", "", "", "", "tp",
142 /*30*/  "", "", "", "", "",
143         "", "", "", "", "",
144 /*40*/  "", "ip6", "", "rt6", "frag6",
145         "", "rsvp", "gre", "", "",
146 /*50*/  "esp", "ah", "", "", "",
147         "", "", "", "icmp6", "none",
148 /*60*/  "dst6",
149 };
150
151 static char *str_state[] = {
152         "larval",
153         "mature",
154         "dying",
155         "dead",
156 };
157
158 static struct val2str str_alg_auth[] = {
159         { SADB_AALG_NONE, "none", },
160         { SADB_AALG_MD5HMAC, "hmac-md5", },
161         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
162         { SADB_X_AALG_MD5, "md5", },
163         { SADB_X_AALG_SHA, "sha", },
164         { SADB_X_AALG_NULL, "null", },
165         { SADB_X_AALG_TCP_MD5, "tcp-md5", },
166 #ifdef SADB_X_AALG_SHA2_256
167         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
168 #endif
169 #ifdef SADB_X_AALG_SHA2_384
170         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
171 #endif
172 #ifdef SADB_X_AALG_SHA2_512
173         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
174 #endif
175         { -1, NULL, },
176 };
177
178 static struct val2str str_alg_enc[] = {
179         { SADB_EALG_NONE, "none", },
180         { SADB_EALG_DESCBC, "des-cbc", },
181         { SADB_EALG_3DESCBC, "3des-cbc", },
182         { SADB_EALG_NULL, "null", },
183 #ifdef SADB_X_EALG_RC5CBC
184         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
185 #endif
186         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
187         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
188 #ifdef SADB_X_EALG_RIJNDAELCBC
189         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
190 #endif
191 #ifdef SADB_X_EALG_TWOFISHCBC
192         { SADB_X_EALG_TWOFISHCBC, "twofish-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(struct sadb_msg *m)
210 {
211         caddr_t mhp[SADB_EXT_MAX + 1];
212         struct sadb_sa *m_sa;
213         struct sadb_x_sa2 *m_sa2;
214         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
215         struct sadb_address *m_saddr, *m_daddr;
216         struct sadb_key *m_auth, *m_enc;
217
218         /* check pfkey message. */
219         if (pfkey_align(m, mhp)) {
220                 printf("%s\n", ipsec_strerror());
221                 return;
222         }
223         if (pfkey_check(mhp)) {
224                 printf("%s\n", ipsec_strerror());
225                 return;
226         }
227
228         m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
229         m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
230         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
231         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
232         m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
233         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
234         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
235         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
236         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
237
238         /* source address */
239         if (m_saddr == NULL) {
240                 printf("no ADDRESS_SRC extension.\n");
241                 return;
242         }
243         printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
244
245         /* destination address */
246         if (m_daddr == NULL) {
247                 printf("no ADDRESS_DST extension.\n");
248                 return;
249         }
250         printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
251
252         /* SA type */
253         if (m_sa == NULL) {
254                 printf("no SA extension.\n");
255                 return;
256         }
257         if (m_sa2 == NULL) {
258                 printf("no SA2 extension.\n");
259                 return;
260         }
261         printf("\n\t");
262
263         GETMSGSTR(str_satype, m->sadb_msg_satype);
264
265         printf("mode=");
266         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
267
268         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
269                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
270                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
271                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
272                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
273
274         /* encryption key */
275         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
276                 printf("\tC: ");
277                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
278         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
279                 if (m_enc != NULL) {
280                         printf("\tE: ");
281                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
282                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
283                                       m_enc->sadb_key_bits / 8);
284                         printf("\n");
285                 }
286         }
287
288         /* authentication key */
289         if (m_auth != NULL) {
290                 printf("\tA: ");
291                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
292                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
293                               m_auth->sadb_key_bits / 8);
294                 printf("\n");
295         }
296
297         /* replay windoe size & flags */
298         printf("\tseq=0x%08x replay=%u flags=0x%08x ",
299                 m_sa2->sadb_x_sa2_sequence,
300                 m_sa->sadb_sa_replay,
301                 m_sa->sadb_sa_flags);
302
303         /* state */
304         printf("state=");
305         GETMSGSTR(str_state, m_sa->sadb_sa_state);
306         printf("\n");
307
308         /* lifetime */
309         if (m_lftc != NULL) {
310                 time_t tmp_time = time(0);
311
312                 printf("\tcreated: %s",
313                         str_time(m_lftc->sadb_lifetime_addtime));
314                 printf("\tcurrent: %s\n", str_time(tmp_time));
315                 printf("\tdiff: %lu(s)",
316                         (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
317                         0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
318
319                 printf("\thard: %lu(s)",
320                         (u_long)(m_lfth == NULL ?
321                         0 : m_lfth->sadb_lifetime_addtime));
322                 printf("\tsoft: %lu(s)\n",
323                         (u_long)(m_lfts == NULL ?
324                         0 : m_lfts->sadb_lifetime_addtime));
325
326                 printf("\tlast: %s",
327                         str_time(m_lftc->sadb_lifetime_usetime));
328                 printf("\thard: %lu(s)",
329                         (u_long)(m_lfth == NULL ?
330                         0 : m_lfth->sadb_lifetime_usetime));
331                 printf("\tsoft: %lu(s)\n",
332                         (u_long)(m_lfts == NULL ?
333                         0 : m_lfts->sadb_lifetime_usetime));
334
335                 str_lifetime_byte(m_lftc, "current");
336                 str_lifetime_byte(m_lfth, "hard");
337                 str_lifetime_byte(m_lfts, "soft");
338                 printf("\n");
339
340                 printf("\tallocated: %lu",
341                         (unsigned long)m_lftc->sadb_lifetime_allocations);
342                 printf("\thard: %lu",
343                         (u_long)(m_lfth == NULL ?
344                         0 : m_lfth->sadb_lifetime_allocations));
345                 printf("\tsoft: %lu\n",
346                         (u_long)(m_lfts == NULL ?
347                         0 : m_lfts->sadb_lifetime_allocations));
348         }
349
350         printf("\tsadb_seq=%lu pid=%lu ",
351                 (u_long)m->sadb_msg_seq,
352                 (u_long)m->sadb_msg_pid);
353
354         /* XXX DEBUG */
355         printf("refcnt=%u\n", m->sadb_msg_reserved);
356
357         return;
358 }
359
360 void
361 pfkey_spdump(struct sadb_msg *m)
362 {
363         char pbuf[NI_MAXSERV];
364         caddr_t mhp[SADB_EXT_MAX + 1];
365         struct sadb_address *m_saddr, *m_daddr;
366         struct sadb_x_policy *m_xpl;
367         struct sadb_lifetime *m_lft = NULL;
368         struct sockaddr *sa;
369         u_int16_t port;
370
371         /* check pfkey message. */
372         if (pfkey_align(m, mhp)) {
373                 printf("%s\n", ipsec_strerror());
374                 return;
375         }
376         if (pfkey_check(mhp)) {
377                 printf("%s\n", ipsec_strerror());
378                 return;
379         }
380
381         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
382         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
383         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
384         m_lft = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
385
386         /* source address */
387         if (m_saddr == NULL) {
388                 printf("no ADDRESS_SRC extension.\n");
389                 return;
390         }
391         sa = (struct sockaddr *)(m_saddr + 1);
392         switch (sa->sa_family) {
393         case AF_INET:
394         case AF_INET6:
395                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
396                     NI_NUMERICSERV) != 0)
397                         port = 0;       /*XXX*/
398                 else
399                         port = atoi(pbuf);
400                 printf("%s%s ", str_ipaddr(sa),
401                         str_prefport(sa->sa_family,
402                             m_saddr->sadb_address_prefixlen, port));
403                 break;
404         default:
405                 printf("unknown-af ");
406                 break;
407         }
408
409         /* destination address */
410         if (m_daddr == NULL) {
411                 printf("no ADDRESS_DST extension.\n");
412                 return;
413         }
414         sa = (struct sockaddr *)(m_daddr + 1);
415         switch (sa->sa_family) {
416         case AF_INET:
417         case AF_INET6:
418                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
419                     NI_NUMERICSERV) != 0)
420                         port = 0;       /*XXX*/
421                 else
422                         port = atoi(pbuf);
423                 printf("%s%s ", str_ipaddr(sa),
424                         str_prefport(sa->sa_family,
425                             m_daddr->sadb_address_prefixlen, port));
426                 break;
427         default:
428                 printf("unknown-af ");
429                 break;
430         }
431
432         /* upper layer protocol */
433         if (m_saddr->sadb_address_proto != m_daddr->sadb_address_proto) {
434                 printf("upper layer protocol mismatched.\n");
435                 return;
436         }
437         if (m_saddr->sadb_address_proto == IPSEC_ULPROTO_ANY)
438                 printf("any");
439         else
440                 GETMSGSTR(str_upper, m_saddr->sadb_address_proto);
441
442         /* policy */
443     {
444         char *d_xpl;
445
446         if (m_xpl == NULL) {
447                 printf("no X_POLICY extension.\n");
448                 return;
449         }
450         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
451
452         /* dump SPD */
453         printf("\n\t%s\n", d_xpl);
454         free(d_xpl);
455     }
456
457         /* lifetime */
458         if (m_lft) {
459                 printf("\tlifetime:%lu validtime:%lu\n",
460                         (u_long)m_lft->sadb_lifetime_addtime,
461                         (u_long)m_lft->sadb_lifetime_usetime);
462         }
463
464         printf("\tspid=%ld seq=%ld pid=%ld\n",
465                 (u_long)m_xpl->sadb_x_policy_id,
466                 (u_long)m->sadb_msg_seq,
467                 (u_long)m->sadb_msg_pid);
468
469         /* XXX TEST */
470         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
471
472         return;
473 }
474
475 /*
476  * set "ipaddress" to buffer.
477  */
478 static char *
479 str_ipaddr(struct sockaddr *sa)
480 {
481         static char buf[NI_MAXHOST];
482 #ifdef NI_WITHSCOPEID
483         const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
484 #else
485         const int niflag = NI_NUMERICHOST;
486 #endif
487
488         if (sa == NULL)
489                 return "";
490
491         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
492                 return buf;
493         return NULL;
494 }
495
496 /*
497  * set "/prefix[port number]" to buffer.
498  */
499 static char *
500 str_prefport(u_int family, u_int pref, u_int port)
501 {
502         static char buf[128];
503         char prefbuf[128];
504         char portbuf[128];
505         int plen;
506
507         switch (family) {
508         case AF_INET:
509                 plen = sizeof(struct in_addr) << 3;
510                 break;
511         case AF_INET6:
512                 plen = sizeof(struct in6_addr) << 3;
513                 break;
514         default:
515                 return "?";
516         }
517
518         if (pref == plen)
519                 prefbuf[0] = '\0';
520         else
521                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
522
523         if (port == IPSEC_PORT_ANY)
524                 snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
525         else
526                 snprintf(portbuf, sizeof(portbuf), "[%u]", port);
527
528         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
529
530         return buf;
531 }
532
533 /*
534  * set "Mon Day Time Year" to buffer
535  */
536 static char *
537 str_time(time_t t)
538 {
539         static char buf[128];
540
541         if (t == 0) {
542                 int i = 0;
543                 for (;i < 20;) buf[i++] = ' ';
544         } else {
545                 char *t0;
546                 t0 = ctime(&t);
547                 memcpy(buf, t0 + 4, 20);
548         }
549
550         buf[20] = '\0';
551
552         return(buf);
553 }
554
555 static void
556 str_lifetime_byte(struct sadb_lifetime *x, char *str)
557 {
558         double y;
559         char *unit;
560         int w;
561
562         if (x == NULL) {
563                 printf("\t%s: 0(bytes)", str);
564                 return;
565         }
566
567 #if 0
568         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
569                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
570                 unit = "M";
571                 w = 1;
572         } else if ((x->sadb_lifetime_bytes) / 1024) {
573                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
574                 unit = "K";
575                 w = 1;
576         } else {
577                 y = (x->sadb_lifetime_bytes) * 1.0;
578                 unit = "";
579                 w = 0;
580         }
581 #else
582         y = (x->sadb_lifetime_bytes) * 1.0;
583         unit = "";
584         w = 0;
585 #endif
586         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
587 }