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 /*      $DragonFly: src/lib/libipsec/pfkey_dump.c,v 1.3 2003/11/12 20:21:30 eirikn Exp $        */
   3 /*      $KAME: pfkey_dump.c,v 1.28 2001/06/27 10:46:51 sakane Exp $     */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/param.h>
  36 #include <sys/socket.h>
  37 #include <netinet6/ipsec.h>
  38 #include <net/pfkeyv2.h>
  39 #include <netkey/key_var.h>
  40 #include <netkey/key_debug.h>
  41
  42 #include <netinet/in.h>
  43 #include <netinet6/ipsec.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("%d ", (num)); \
  84         else if (strlen((str)[(num)]) == 0) \
  85                 printf("%d ", (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("%d ", (num)); \
 101 } while (0)
 102
 103 static char *str_ipaddr (struct sockaddr *);
 104 static char *str_prefport (u_int, u_int, u_int);
 105 static char *str_time (time_t);
 106 static void str_lifetime_byte (struct sadb_lifetime *, char *);
 107
 108 struct val2str {
 109         int val;
 110         const char *str;
 111 };
 112
 113 /*
 114  * Must to be re-written about following strings.
 115  */
 116 static char *str_satype[] = {
 117         "unspec",
 118         "unknown",
 119         "ah",
 120         "esp",
 121         "unknown",
 122         "rsvp",
 123         "ospfv2",
 124         "ripv2",
 125         "mip",
 126         "ipcomp",
 127         "policy",
 128         "tcp",
 129 };
 130
 131 static char *str_mode[] = {
 132         "any",
 133         "transport",
 134         "tunnel",
 135 };
 136
 137 static char *str_upper[] = {
 138 /*0*/   "ip", "icmp", "igmp", "ggp", "ip4",
 139         "", "tcp", "", "egp", "",
 140 /*10*/  "", "", "", "", "",
 141         "", "", "udp", "", "",
 142 /*20*/  "", "", "idp", "", "",
 143         "", "", "", "", "tp",
 144 /*30*/  "", "", "", "", "",
 145         "", "", "", "", "",
 146 /*40*/  "", "ip6", "", "rt6", "frag6",
 147         "", "rsvp", "gre", "", "",
 148 /*50*/  "esp", "ah", "", "", "",
 149         "", "", "", "icmp6", "none",
 150 /*60*/  "dst6",
 151 };
 152
 153 static char *str_state[] = {
 154         "larval",
 155         "mature",
 156         "dying",
 157         "dead",
 158 };
 159
 160 static struct val2str str_alg_auth[] = {
 161         { SADB_AALG_NONE, "none", },
 162         { SADB_AALG_MD5HMAC, "hmac-md5", },
 163         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
 164         { SADB_X_AALG_MD5, "md5", },
 165         { SADB_X_AALG_SHA, "sha", },
 166         { SADB_X_AALG_NULL, "null", },
 167         { SADB_X_AALG_TCP_MD5, "tcp-md5", },
 168 #ifdef SADB_X_AALG_SHA2_256
 169         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
 170 #endif
 171 #ifdef SADB_X_AALG_SHA2_384
 172         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
 173 #endif
 174 #ifdef SADB_X_AALG_SHA2_512
 175         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
 176 #endif
 177         { -1, NULL, },
 178 };
 179
 180 static struct val2str str_alg_enc[] = {
 181         { SADB_EALG_NONE, "none", },
 182         { SADB_EALG_DESCBC, "des-cbc", },
 183         { SADB_EALG_3DESCBC, "3des-cbc", },
 184         { SADB_EALG_NULL, "null", },
 185 #ifdef SADB_X_EALG_RC5CBC
 186         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
 187 #endif
 188         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
 189         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
 190 #ifdef SADB_X_EALG_RIJNDAELCBC
 191         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
 192 #endif
 193 #ifdef SADB_X_EALG_TWOFISHCBC
 194         { SADB_X_EALG_TWOFISHCBC, "twofish-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
 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
 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_lft = NULL;
 378         struct sockaddr *sa;
 379         u_int16_t port;
 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_lft = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 395
 396         /* source address */
 397         if (m_saddr == NULL) {
 398                 printf("no ADDRESS_SRC extension.\n");
 399                 return;
 400         }
 401         sa = (struct sockaddr *)(m_saddr + 1);
 402         switch (sa->sa_family) {
 403         case AF_INET:
 404         case AF_INET6:
 405                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
 406                     NI_NUMERICSERV) != 0)
 407                         port = 0;       /*XXX*/
 408                 else
 409                         port = atoi(pbuf);
 410                 printf("%s%s ", str_ipaddr(sa),
 411                         str_prefport(sa->sa_family,
 412                             m_saddr->sadb_address_prefixlen, port));
 413                 break;
 414         default:
 415                 printf("unknown-af ");
 416                 break;
 417         }
 418
 419         /* destination address */
 420         if (m_daddr == NULL) {
 421                 printf("no ADDRESS_DST extension.\n");
 422                 return;
 423         }
 424         sa = (struct sockaddr *)(m_daddr + 1);
 425         switch (sa->sa_family) {
 426         case AF_INET:
 427         case AF_INET6:
 428                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
 429                     NI_NUMERICSERV) != 0)
 430                         port = 0;       /*XXX*/
 431                 else
 432                         port = atoi(pbuf);
 433                 printf("%s%s ", str_ipaddr(sa),
 434                         str_prefport(sa->sa_family,
 435                             m_daddr->sadb_address_prefixlen, port));
 436                 break;
 437         default:
 438                 printf("unknown-af ");
 439                 break;
 440         }
 441
 442         /* upper layer protocol */
 443         if (m_saddr->sadb_address_proto != m_daddr->sadb_address_proto) {
 444                 printf("upper layer protocol mismatched.\n");
 445                 return;
 446         }
 447         if (m_saddr->sadb_address_proto == IPSEC_ULPROTO_ANY)
 448                 printf("any");
 449         else
 450                 GETMSGSTR(str_upper, m_saddr->sadb_address_proto);
 451
 452         /* policy */
 453     {
 454         char *d_xpl;
 455
 456         if (m_xpl == NULL) {
 457                 printf("no X_POLICY extension.\n");
 458                 return;
 459         }
 460         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
 461
 462         /* dump SPD */
 463         printf("\n\t%s\n", d_xpl);
 464         free(d_xpl);
 465     }
 466
 467         /* lifetime */
 468         if (m_lft) {
 469                 printf("\tlifetime:%lu validtime:%lu\n",
 470                         (u_long)m_lft->sadb_lifetime_addtime,
 471                         (u_long)m_lft->sadb_lifetime_usetime);
 472         }
 473
 474         printf("\tspid=%ld seq=%ld pid=%ld\n",
 475                 (u_long)m_xpl->sadb_x_policy_id,
 476                 (u_long)m->sadb_msg_seq,
 477                 (u_long)m->sadb_msg_pid);
 478
 479         /* XXX TEST */
 480         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 481
 482         return;
 483 }
 484
 485 /*
 486  * set "ipaddress" to buffer.
 487  */
 488 static char *
 489 str_ipaddr(sa)
 490         struct sockaddr *sa;
 491 {
 492         static char buf[NI_MAXHOST];
 493 #ifdef NI_WITHSCOPEID
 494         const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
 495 #else
 496         const int niflag = NI_NUMERICHOST;
 497 #endif
 498
 499         if (sa == NULL)
 500                 return "";
 501
 502         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
 503                 return buf;
 504         return NULL;
 505 }
 506
 507 /*
 508  * set "/prefix[port number]" to buffer.
 509  */
 510 static char *
 511 str_prefport(family, pref, port)
 512         u_int family, pref, port;
 513 {
 514         static char buf[128];
 515         char prefbuf[128];
 516         char portbuf[128];
 517         int plen;
 518
 519         switch (family) {
 520         case AF_INET:
 521                 plen = sizeof(struct in_addr) << 3;
 522                 break;
 523         case AF_INET6:
 524                 plen = sizeof(struct in6_addr) << 3;
 525                 break;
 526         default:
 527                 return "?";
 528         }
 529
 530         if (pref == plen)
 531                 prefbuf[0] = '\0';
 532         else
 533                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
 534
 535         if (port == IPSEC_PORT_ANY)
 536                 snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
 537         else
 538                 snprintf(portbuf, sizeof(portbuf), "[%u]", port);
 539
 540         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
 541
 542         return buf;
 543 }
 544
 545 /*
 546  * set "Mon Day Time Year" to buffer
 547  */
 548 static char *
 549 str_time(t)
 550         time_t t;
 551 {
 552         static char buf[128];
 553
 554         if (t == 0) {
 555                 int i = 0;
 556                 for (;i < 20;) buf[i++] = ' ';
 557         } else {
 558                 char *t0;
 559                 t0 = ctime(&t);
 560                 memcpy(buf, t0 + 4, 20);
 561         }
 562
 563         buf[20] = '\0';
 564
 565         return(buf);
 566 }
 567
 568 static void
 569 str_lifetime_byte(x, str)
 570         struct sadb_lifetime *x;
 571         char *str;
 572 {
 573         double y;
 574         char *unit;
 575         int w;
 576
 577         if (x == NULL) {
 578                 printf("\t%s: 0(bytes)", str);
 579                 return;
 580         }
 581
 582 #if 0
 583         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
 584                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
 585                 unit = "M";
 586                 w = 1;
 587         } else if ((x->sadb_lifetime_bytes) / 1024) {
 588                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
 589                 unit = "K";
 590                 w = 1;
 591         } else {
 592                 y = (x->sadb_lifetime_bytes) * 1.0;
 593                 unit = "";
 594                 w = 0;
 595         }
 596 #else
 597         y = (x->sadb_lifetime_bytes) * 1.0;
 598         unit = "";
 599         w = 0;
 600 #endif
 601         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
 602 }