racoon.tproj/pfkey_dump.c

   1 /*      $FreeBSD: src/lib/libipsec/pfkey_dump.c,v 1.1.2.2 2001/07/03 11:01:15 ume Exp $ */
   2 /*      $KAME: pfkey_dump.c,v 1.27 2001/03/12 09:03:38 itojun 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 <netinet6/ipsec.h>
  43 #include <arpa/inet.h>
  44
  45 #include <stdlib.h>
  46 #include <unistd.h>
  47 #include <stdio.h>
  48 #include <string.h>
  49 #include <time.h>
  50 #include <netdb.h>
  51
  52 #include "ipsec_strerror.h"
  53 #include "libpfkey.h"
  54
  55 /* cope with old kame headers - ugly */
  56 #ifndef SADB_X_AALG_MD5
  57 #define SADB_X_AALG_MD5         SADB_AALG_MD5
  58 #endif
  59 #ifndef SADB_X_AALG_SHA
  60 #define SADB_X_AALG_SHA         SADB_AALG_SHA
  61 #endif
  62 #ifndef SADB_X_AALG_NULL
  63 #define SADB_X_AALG_NULL        SADB_AALG_NULL
  64 #endif
  65
  66 #ifndef SADB_X_EALG_BLOWFISHCBC
  67 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
  68 #endif
  69 #ifndef SADB_X_EALG_CAST128CBC
  70 #define SADB_X_EALG_CAST128CBC  SADB_EALG_CAST128CBC
  71 #endif
  72 #ifndef SADB_X_EALG_RC5CBC
  73 #ifdef SADB_EALG_RC5CBC
  74 #define SADB_X_EALG_RC5CBC      SADB_EALG_RC5CBC
  75 #endif
  76 #endif
  77
  78 #define GETMSGSTR(str, num) \
  79 do { \
  80         if (sizeof((str)[0]) == 0 \
  81          || num >= sizeof(str)/sizeof((str)[0])) \
  82                 printf("%d ", (num)); \
  83         else if (strlen((str)[(num)]) == 0) \
  84                 printf("%d ", (num)); \
  85         else \
  86                 printf("%s ", (str)[(num)]); \
  87 } while (0)
  88
  89 #define GETMSGV2S(v2s, num) \
  90 do { \
  91         struct val2str *p;  \
  92         for (p = (v2s); p && p->str; p++) { \
  93                 if (p->val == (num)) \
  94                         break; \
  95         } \
  96         if (p && p->str) \
  97                 printf("%s ", p->str); \
  98         else \
  99                 printf("%d ", (num)); \
 100 } while (0)
 101
 102 static char *str_ipaddr __P((struct sockaddr *));
 103 static char *str_prefport __P((u_int, u_int, u_int));
 104 static char *str_time __P((time_t));
 105 static void str_lifetime_byte __P((struct sadb_lifetime *, char *));
 106
 107 struct val2str {
 108         int val;
 109         const char *str;
 110 };
 111
 112 /*
 113  * Must to be re-written about following strings.
 114  */
 115 static char *str_satype[] = {
 116         "unspec",
 117         "unknown",
 118         "ah",
 119         "esp",
 120         "unknown",
 121         "rsvp",
 122         "ospfv2",
 123         "ripv2",
 124         "mip",
 125         "ipcomp",
 126 };
 127
 128 static char *str_mode[] = {
 129         "any",
 130         "transport",
 131         "tunnel",
 132 };
 133
 134 static char *str_upper[] = {
 135 /*0*/   "ip", "icmp", "igmp", "ggp", "ip4",
 136         "", "tcp", "", "egp", "",
 137 /*10*/  "", "", "", "", "",
 138         "", "", "udp", "", "",
 139 /*20*/  "", "", "idp", "", "",
 140         "", "", "", "", "tp",
 141 /*30*/  "", "", "", "", "",
 142         "", "", "", "", "",
 143 /*40*/  "", "ip6", "", "rt6", "frag6",
 144         "", "rsvp", "gre", "", "",
 145 /*50*/  "esp", "ah", "", "", "",
 146         "", "", "", "icmp6", "none",
 147 /*60*/  "dst6",
 148 };
 149
 150 static char *str_state[] = {
 151         "larval",
 152         "mature",
 153         "dying",
 154         "dead",
 155 };
 156
 157 static struct val2str str_alg_auth[] = {
 158         { SADB_AALG_NONE, "none", },
 159         { SADB_AALG_MD5HMAC, "hmac-md5", },
 160         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
 161         { SADB_X_AALG_MD5, "md5", },
 162         { SADB_X_AALG_SHA, "sha", },
 163         { SADB_X_AALG_NULL, "null", },
 164 #ifdef SADB_X_AALG_SHA2_256
 165         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
 166 #endif
 167 #ifdef SADB_X_AALG_SHA2_384
 168         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
 169 #endif
 170 #ifdef SADB_X_AALG_SHA2_512
 171         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
 172 #endif
 173         { -1, NULL, },
 174 };
 175
 176 static struct val2str str_alg_enc[] = {
 177         { SADB_EALG_NONE, "none", },
 178         { SADB_EALG_DESCBC, "des-cbc", },
 179         { SADB_EALG_3DESCBC, "3des-cbc", },
 180         { SADB_EALG_NULL, "null", },
 181 #ifdef SADB_X_EALG_RC5CBC
 182         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
 183 #endif
 184         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
 185         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
 186 #ifdef SADB_X_EALG_RIJNDAELCBC
 187         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
 188 #endif
 189 #ifdef SADB_X_EALG_TWOFISHCBC
 190         { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
 191 #endif
 192         { -1, NULL, },
 193 };
 194
 195 static struct val2str str_alg_comp[] = {
 196         { SADB_X_CALG_NONE, "none", },
 197         { SADB_X_CALG_OUI, "oui", },
 198         { SADB_X_CALG_DEFLATE, "deflate", },
 199         { SADB_X_CALG_LZS, "lzs", },
 200         { -1, NULL, },
 201 };
 202
 203 /*
 204  * dump SADB_MSG formated.  For debugging, you should use kdebug_sadb().
 205  */
 206 void
 207 pfkey_sadump(m)
 208         struct sadb_msg *m;
 209 {
 210         caddr_t mhp[SADB_EXT_MAX + 1];
 211         struct sadb_sa *m_sa;
 212         struct sadb_x_sa2 *m_sa2;
 213         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
 214         struct sadb_address *m_saddr, *m_daddr, *m_paddr;
 215         struct sadb_key *m_auth, *m_enc;
 216         struct sadb_ident *m_sid, *m_did;
 217         struct sadb_sens *m_sens;
 218
 219         /* check pfkey message. */
 220         if (pfkey_align(m, mhp)) {
 221                 printf("%s\n", ipsec_strerror());
 222                 return;
 223         }
 224         if (pfkey_check(mhp)) {
 225                 printf("%s\n", ipsec_strerror());
 226                 return;
 227         }
 228
 229         m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
 230         m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
 231         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
 232         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 233         m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
 234         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
 235         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
 236         m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
 237         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
 238         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
 239         m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
 240         m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
 241         m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
 242
 243         /* source address */
 244         if (m_saddr == NULL) {
 245                 printf("no ADDRESS_SRC extension.\n");
 246                 return;
 247         }
 248         printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
 249
 250         /* destination address */
 251         if (m_daddr == NULL) {
 252                 printf("no ADDRESS_DST extension.\n");
 253                 return;
 254         }
 255         printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
 256
 257         /* SA type */
 258         if (m_sa == NULL) {
 259                 printf("no SA extension.\n");
 260                 return;
 261         }
 262         if (m_sa2 == NULL) {
 263                 printf("no SA2 extension.\n");
 264                 return;
 265         }
 266         printf("\n\t");
 267
 268         GETMSGSTR(str_satype, m->sadb_msg_satype);
 269
 270         printf("mode=");
 271         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
 272
 273         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
 274                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 275                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 276                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
 277                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
 278
 279         /* encryption key */
 280         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
 281                 printf("\tC: ");
 282                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
 283         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
 284                 if (m_enc != NULL) {
 285                         printf("\tE: ");
 286                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
 287                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
 288                                       m_enc->sadb_key_bits / 8);
 289                         printf("\n");
 290                 }
 291         }
 292
 293         /* authentication key */
 294         if (m_auth != NULL) {
 295                 printf("\tA: ");
 296                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
 297                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
 298                               m_auth->sadb_key_bits / 8);
 299                 printf("\n");
 300         }
 301
 302         /* replay windoe size & flags */
 303         printf("\treplay=%u flags=0x%08x ",
 304                 m_sa->sadb_sa_replay,
 305                 m_sa->sadb_sa_flags);
 306
 307         /* state */
 308         printf("state=");
 309         GETMSGSTR(str_state, m_sa->sadb_sa_state);
 310
 311         printf("seq=%lu pid=%lu\n",
 312                 (u_long)m->sadb_msg_seq,
 313                 (u_long)m->sadb_msg_pid);
 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         /* XXX DEBUG */
 358         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 359
 360         return;
 361 }
 362
 363 void
 364 pfkey_spdump(m)
 365         struct sadb_msg *m;
 366 {
 367         char pbuf[NI_MAXSERV];
 368         caddr_t mhp[SADB_EXT_MAX + 1];
 369         struct sadb_address *m_saddr, *m_daddr;
 370         struct sadb_x_policy *m_xpl;
 371         struct sadb_lifetime *m_lft = NULL;
 372         struct sockaddr *sa;
 373         u_int16_t port;
 374
 375         /* check pfkey message. */
 376         if (pfkey_align(m, mhp)) {
 377                 printf("%s\n", ipsec_strerror());
 378                 return;
 379         }
 380         if (pfkey_check(mhp)) {
 381                 printf("%s\n", ipsec_strerror());
 382                 return;
 383         }
 384
 385         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
 386         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
 387         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
 388         m_lft = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 389
 390         /* source address */
 391         if (m_saddr == NULL) {
 392                 printf("no ADDRESS_SRC extension.\n");
 393                 return;
 394         }
 395         sa = (struct sockaddr *)(m_saddr + 1);
 396         switch (sa->sa_family) {
 397         case AF_INET:
 398         case AF_INET6:
 399                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
 400                     NI_NUMERICSERV) != 0)
 401                         port = 0;       /*XXX*/
 402                 else
 403                         port = atoi(pbuf);
 404                 printf("%s%s ", str_ipaddr(sa),
 405                         str_prefport(sa->sa_family,
 406                             m_saddr->sadb_address_prefixlen, port));
 407                 break;
 408         default:
 409                 printf("unknown-af ");
 410                 break;
 411         }
 412
 413         /* destination address */
 414         if (m_daddr == NULL) {
 415                 printf("no ADDRESS_DST extension.\n");
 416                 return;
 417         }
 418         sa = (struct sockaddr *)(m_daddr + 1);
 419         switch (sa->sa_family) {
 420         case AF_INET:
 421         case AF_INET6:
 422                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
 423                     NI_NUMERICSERV) != 0)
 424                         port = 0;       /*XXX*/
 425                 else
 426                         port = atoi(pbuf);
 427                 printf("%s%s ", str_ipaddr(sa),
 428                         str_prefport(sa->sa_family,
 429                             m_daddr->sadb_address_prefixlen, port));
 430                 break;
 431         default:
 432                 printf("unknown-af ");
 433                 break;
 434         }
 435
 436         /* upper layer protocol */
 437         if (m_saddr->sadb_address_proto != m_daddr->sadb_address_proto) {
 438                 printf("upper layer protocol mismatched.\n");
 439                 return;
 440         }
 441         if (m_saddr->sadb_address_proto == IPSEC_ULPROTO_ANY)
 442                 printf("any");
 443         else
 444                 GETMSGSTR(str_upper, m_saddr->sadb_address_proto);
 445
 446         /* policy */
 447     {
 448         char *d_xpl;
 449
 450         if (m_xpl == NULL) {
 451                 printf("no X_POLICY extension.\n");
 452                 return;
 453         }
 454         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
 455
 456         /* dump SPD */
 457         printf("\n\t%s\n", d_xpl);
 458         free(d_xpl);
 459     }
 460
 461         /* lifetime */
 462         if (m_lft) {
 463                 printf("\tlifetime:%lu validtime:%lu\n",
 464                         (u_long)m_lft->sadb_lifetime_addtime,
 465                         (u_long)m_lft->sadb_lifetime_usetime);
 466         }
 467
 468         printf("\tspid=%ld seq=%ld pid=%ld\n",
 469                 (u_long)m_xpl->sadb_x_policy_id,
 470                 (u_long)m->sadb_msg_seq,
 471                 (u_long)m->sadb_msg_pid);
 472
 473         /* XXX TEST */
 474         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 475
 476         return;
 477 }
 478
 479 /*
 480  * set "ipaddress" to buffer.
 481  */
 482 static char *
 483 str_ipaddr(sa)
 484         struct sockaddr *sa;
 485 {
 486         static char buf[NI_MAXHOST];
 487 #ifdef NI_WITHSCOPEID
 488         const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
 489 #else
 490         const int niflag = NI_NUMERICHOST;
 491 #endif
 492
 493         if (sa == NULL)
 494                 return "";
 495
 496         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
 497                 return buf;
 498         return NULL;
 499 }
 500
 501 /*
 502  * set "/prefix[port number]" to buffer.
 503  */
 504 static char *
 505 str_prefport(family, pref, port)
 506         u_int family, pref, port;
 507 {
 508         static char buf[128];
 509         char prefbuf[10];
 510         char portbuf[10];
 511         int plen;
 512
 513         switch (family) {
 514         case AF_INET:
 515                 plen = sizeof(struct in_addr) << 3;
 516                 break;
 517         case AF_INET6:
 518                 plen = sizeof(struct in6_addr) << 3;
 519                 break;
 520         default:
 521                 return "?";
 522         }
 523
 524         if (pref == plen)
 525                 prefbuf[0] = '\0';
 526         else
 527                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
 528
 529         if (port == IPSEC_PORT_ANY)
 530                 snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
 531         else
 532                 snprintf(portbuf, sizeof(portbuf), "[%u]", port);
 533
 534         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
 535
 536         return buf;
 537 }
 538
 539 /*
 540  * set "Mon Day Time Year" to buffer
 541  */
 542 static char *
 543 str_time(t)
 544         time_t t;
 545 {
 546         static char buf[128];
 547
 548         if (t == 0) {
 549                 int i = 0;
 550                 for (;i < 20;) buf[i++] = ' ';
 551         } else {
 552                 char *t0;
 553                 t0 = ctime(&t);
 554                 memcpy(buf, t0 + 4, 20);
 555         }
 556
 557         buf[20] = '\0';
 558
 559         return(buf);
 560 }
 561
 562 static void
 563 str_lifetime_byte(x, str)
 564         struct sadb_lifetime *x;
 565         char *str;
 566 {
 567         double y;
 568         char *unit;
 569         int w;
 570
 571         if (x == NULL) {
 572                 printf("\t%s: 0(bytes)", str);
 573                 return;
 574         }
 575
 576 #if 0
 577         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
 578                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
 579                 unit = "M";
 580                 w = 1;
 581         } else if ((x->sadb_lifetime_bytes) / 1024) {
 582                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
 583                 unit = "K";
 584                 w = 1;
 585         } else {
 586                 y = (x->sadb_lifetime_bytes) * 1.0;
 587                 unit = "";
 588                 w = 0;
 589         }
 590 #else
 591         y = (x->sadb_lifetime_bytes) * 1.0;
 592         unit = "";
 593         w = 0;
 594 #endif
 595         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
 596 }