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
  40 #include <netinet/in.h>
  41 #include <netinet6/ipsec.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 __P((struct sockaddr *));
 102 static char *str_prefport __P((u_int, u_int, u_int));
 103 static char *str_time __P((time_t));
 104 static void str_lifetime_byte __P((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 };
 126
 127 static char *str_mode[] = {
 128         "any",
 129         "transport",
 130         "tunnel",
 131 };
 132
 133 static char *str_upper[] = {
 134 /*0*/   "ip", "icmp", "igmp", "ggp", "ip4",
 135         "", "tcp", "", "egp", "",
 136 /*10*/  "", "", "", "", "",
 137         "", "", "udp", "", "",
 138 /*20*/  "", "", "idp", "", "",
 139         "", "", "", "", "tp",
 140 /*30*/  "", "", "", "", "",
 141         "", "", "", "", "",
 142 /*40*/  "", "ip6", "", "rt6", "frag6",
 143         "", "rsvp", "gre", "", "",
 144 /*50*/  "esp", "ah", "", "", "",
 145         "", "", "", "icmp6", "none",
 146 /*60*/  "dst6",
 147 };
 148
 149 static char *str_state[] = {
 150         "larval",
 151         "mature",
 152         "dying",
 153         "dead",
 154 };
 155
 156 static struct val2str str_alg_auth[] = {
 157         { SADB_AALG_NONE, "none", },
 158         { SADB_AALG_MD5HMAC, "hmac-md5", },
 159         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
 160         { SADB_X_AALG_MD5, "md5", },
 161         { SADB_X_AALG_SHA, "sha", },
 162         { SADB_X_AALG_NULL, "null", },
 163 #ifdef SADB_X_AALG_SHA2_256
 164         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
 165 #endif
 166 #ifdef SADB_X_AALG_SHA2_384
 167         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
 168 #endif
 169 #ifdef SADB_X_AALG_SHA2_512
 170         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
 171 #endif
 172         { -1, NULL, },
 173 };
 174
 175 static struct val2str str_alg_enc[] = {
 176         { SADB_EALG_NONE, "none", },
 177         { SADB_EALG_DESCBC, "des-cbc", },
 178         { SADB_EALG_3DESCBC, "3des-cbc", },
 179         { SADB_EALG_NULL, "null", },
 180 #ifdef SADB_X_EALG_RC5CBC
 181         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
 182 #endif
 183         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
 184         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
 185 #ifdef SADB_X_EALG_RIJNDAELCBC
 186         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
 187 #endif
 188 #ifdef SADB_X_EALG_TWOFISHCBC
 189         { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
 190 #endif
 191         { -1, NULL, },
 192 };
 193
 194 static struct val2str str_alg_comp[] = {
 195         { SADB_X_CALG_NONE, "none", },
 196         { SADB_X_CALG_OUI, "oui", },
 197         { SADB_X_CALG_DEFLATE, "deflate", },
 198         { SADB_X_CALG_LZS, "lzs", },
 199         { -1, NULL, },
 200 };
 201
 202 /*
 203  * dump SADB_MSG formated.  For debugging, you should use kdebug_sadb().
 204  */
 205 void
 206 pfkey_sadump(m)
 207         struct sadb_msg *m;
 208 {
 209         caddr_t mhp[SADB_EXT_MAX + 1];
 210         struct sadb_sa *m_sa;
 211         struct sadb_x_sa2 *m_sa2;
 212         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
 213         struct sadb_address *m_saddr, *m_daddr, *m_paddr;
 214         struct sadb_key *m_auth, *m_enc;
 215         struct sadb_ident *m_sid, *m_did;
 216         struct sadb_sens *m_sens;
 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_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
 236         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
 237         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
 238         m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
 239         m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
 240         m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
 241
 242         /* source address */
 243         if (m_saddr == NULL) {
 244                 printf("no ADDRESS_SRC extension.\n");
 245                 return;
 246         }
 247         printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
 248
 249         /* destination address */
 250         if (m_daddr == NULL) {
 251                 printf("no ADDRESS_DST extension.\n");
 252                 return;
 253         }
 254         printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
 255
 256         /* SA type */
 257         if (m_sa == NULL) {
 258                 printf("no SA extension.\n");
 259                 return;
 260         }
 261         if (m_sa2 == NULL) {
 262                 printf("no SA2 extension.\n");
 263                 return;
 264         }
 265         printf("\n\t");
 266
 267         GETMSGSTR(str_satype, m->sadb_msg_satype);
 268
 269         printf("mode=");
 270         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
 271
 272         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
 273                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 274                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 275                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
 276                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
 277
 278         /* encryption key */
 279         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
 280                 printf("\tC: ");
 281                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
 282         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
 283                 if (m_enc != NULL) {
 284                         printf("\tE: ");
 285                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
 286                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
 287                                       m_enc->sadb_key_bits / 8);
 288                         printf("\n");
 289                 }
 290         }
 291
 292         /* authentication key */
 293         if (m_auth != NULL) {
 294                 printf("\tA: ");
 295                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
 296                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
 297                               m_auth->sadb_key_bits / 8);
 298                 printf("\n");
 299         }
 300
 301         /* replay windoe size & flags */
 302         printf("\treplay=%u flags=0x%08x ",
 303                 m_sa->sadb_sa_replay,
 304                 m_sa->sadb_sa_flags);
 305
 306         /* state */
 307         printf("state=");
 308         GETMSGSTR(str_state, m_sa->sadb_sa_state);
 309
 310         printf("seq=%lu pid=%lu\n",
 311                 (u_long)m->sadb_msg_seq,
 312                 (u_long)m->sadb_msg_pid);
 313
 314         /* lifetime */
 315         if (m_lftc != NULL) {
 316                 time_t tmp_time = time(0);
 317
 318                 printf("\tcreated: %s",
 319                         str_time(m_lftc->sadb_lifetime_addtime));
 320                 printf("\tcurrent: %s\n", str_time(tmp_time));
 321                 printf("\tdiff: %lu(s)",
 322                         (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
 323                         0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
 324
 325                 printf("\thard: %lu(s)",
 326                         (u_long)(m_lfth == NULL ?
 327                         0 : m_lfth->sadb_lifetime_addtime));
 328                 printf("\tsoft: %lu(s)\n",
 329                         (u_long)(m_lfts == NULL ?
 330                         0 : m_lfts->sadb_lifetime_addtime));
 331
 332                 printf("\tlast: %s",
 333                         str_time(m_lftc->sadb_lifetime_usetime));
 334                 printf("\thard: %lu(s)",
 335                         (u_long)(m_lfth == NULL ?
 336                         0 : m_lfth->sadb_lifetime_usetime));
 337                 printf("\tsoft: %lu(s)\n",
 338                         (u_long)(m_lfts == NULL ?
 339                         0 : m_lfts->sadb_lifetime_usetime));
 340
 341                 str_lifetime_byte(m_lftc, "current");
 342                 str_lifetime_byte(m_lfth, "hard");
 343                 str_lifetime_byte(m_lfts, "soft");
 344                 printf("\n");
 345
 346                 printf("\tallocated: %lu",
 347                         (unsigned long)m_lftc->sadb_lifetime_allocations);
 348                 printf("\thard: %lu",
 349                         (u_long)(m_lfth == NULL ?
 350                         0 : m_lfth->sadb_lifetime_allocations));
 351                 printf("\tsoft: %lu\n",
 352                         (u_long)(m_lfts == NULL ?
 353                         0 : m_lfts->sadb_lifetime_allocations));
 354         }
 355
 356         /* XXX DEBUG */
 357         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 358
 359         return;
 360 }
 361
 362 void
 363 pfkey_spdump(m)
 364         struct sadb_msg *m;
 365 {
 366         char pbuf[NI_MAXSERV];
 367         caddr_t mhp[SADB_EXT_MAX + 1];
 368         struct sadb_address *m_saddr, *m_daddr;
 369         struct sadb_x_policy *m_xpl;
 370         struct sadb_lifetime *m_lft = NULL;
 371         struct sockaddr *sa;
 372         u_int16_t port;
 373
 374         /* check pfkey message. */
 375         if (pfkey_align(m, mhp)) {
 376                 printf("%s\n", ipsec_strerror());
 377                 return;
 378         }
 379         if (pfkey_check(mhp)) {
 380                 printf("%s\n", ipsec_strerror());
 381                 return;
 382         }
 383
 384         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
 385         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
 386         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
 387         m_lft = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 388
 389         /* source address */
 390         if (m_saddr == NULL) {
 391                 printf("no ADDRESS_SRC extension.\n");
 392                 return;
 393         }
 394         sa = (struct sockaddr *)(m_saddr + 1);
 395         switch (sa->sa_family) {
 396         case AF_INET:
 397         case AF_INET6:
 398                 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf),
 399                     NI_NUMERICSERV) != 0)
 400                         port = 0;       /*XXX*/
 401                 else
 402                         port = atoi(pbuf);
 403                 printf("%s%s ", str_ipaddr(sa),
 404                         str_prefport(sa->sa_family,
 405                             m_saddr->sadb_address_prefixlen, port));
 406                 break;
 407         default:
 408                 printf("unknown-af ");
 409                 break;
 410         }
 411
 412         /* destination address */
 413         if (m_daddr == NULL) {
 414                 printf("no ADDRESS_DST extension.\n");
 415                 return;
 416         }
 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, pbuf, sizeof(pbuf),
 422                     NI_NUMERICSERV) != 0)
 423                         port = 0;       /*XXX*/
 424                 else
 425                         port = atoi(pbuf);
 426                 printf("%s%s ", str_ipaddr(sa),
 427                         str_prefport(sa->sa_family,
 428                             m_daddr->sadb_address_prefixlen, port));
 429                 break;
 430         default:
 431                 printf("unknown-af ");
 432                 break;
 433         }
 434
 435         /* upper layer protocol */
 436         if (m_saddr->sadb_address_proto != m_daddr->sadb_address_proto) {
 437                 printf("upper layer protocol mismatched.\n");
 438                 return;
 439         }
 440         if (m_saddr->sadb_address_proto == IPSEC_ULPROTO_ANY)
 441                 printf("any");
 442         else
 443                 GETMSGSTR(str_upper, m_saddr->sadb_address_proto);
 444
 445         /* policy */
 446     {
 447         char *d_xpl;
 448
 449         if (m_xpl == NULL) {
 450                 printf("no X_POLICY extension.\n");
 451                 return;
 452         }
 453         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
 454
 455         /* dump SPD */
 456         printf("\n\t%s\n", d_xpl);
 457         free(d_xpl);
 458     }
 459
 460         /* lifetime */
 461         if (m_lft) {
 462                 printf("\tlifetime:%lu validtime:%lu\n",
 463                         (u_long)m_lft->sadb_lifetime_addtime,
 464                         (u_long)m_lft->sadb_lifetime_usetime);
 465         }
 466
 467         printf("\tspid=%ld seq=%ld pid=%ld\n",
 468                 (u_long)m_xpl->sadb_x_policy_id,
 469                 (u_long)m->sadb_msg_seq,
 470                 (u_long)m->sadb_msg_pid);
 471
 472         /* XXX TEST */
 473         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 474
 475         return;
 476 }
 477
 478 /*
 479  * set "ipaddress" to buffer.
 480  */
 481 static char *
 482 str_ipaddr(sa)
 483         struct sockaddr *sa;
 484 {
 485         static char buf[NI_MAXHOST];
 486 #ifdef NI_WITHSCOPEID
 487         const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
 488 #else
 489         const int niflag = NI_NUMERICHOST;
 490 #endif
 491
 492         if (sa == NULL)
 493                 return "";
 494
 495         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
 496                 return buf;
 497         return NULL;
 498 }
 499
 500 /*
 501  * set "/prefix[port number]" to buffer.
 502  */
 503 static char *
 504 str_prefport(family, pref, port)
 505         u_int family, pref, port;
 506 {
 507         static char buf[128];
 508         char prefbuf[20];
 509         char portbuf[20];
 510         int plen;
 511
 512         switch (family) {
 513         case AF_INET:
 514                 plen = sizeof(struct in_addr) << 3;
 515                 break;
 516         case AF_INET6:
 517                 plen = sizeof(struct in6_addr) << 3;
 518                 break;
 519         default:
 520                 return "?";
 521         }
 522
 523         if (pref == plen)
 524                 prefbuf[0] = '\0';
 525         else
 526                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
 527
 528         if (port == IPSEC_PORT_ANY)
 529                 snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
 530         else
 531                 snprintf(portbuf, sizeof(portbuf), "[%u]", port);
 532
 533         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
 534
 535         return buf;
 536 }
 537
 538 /*
 539  * set "Mon Day Time Year" to buffer
 540  */
 541 static char *
 542 str_time(t)
 543         time_t t;
 544 {
 545         static char buf[128];
 546
 547         if (t == 0) {
 548                 int i = 0;
 549                 for (;i < 20;) buf[i++] = ' ';
 550         } else {
 551                 char *t0;
 552                 t0 = ctime(&t);
 553                 memcpy(buf, t0 + 4, 20);
 554         }
 555
 556         buf[20] = '\0';
 557
 558         return(buf);
 559 }
 560
 561 static void
 562 str_lifetime_byte(x, str)
 563         struct sadb_lifetime *x;
 564         char *str;
 565 {
 566         double y;
 567         char *unit;
 568         int w;
 569
 570         if (x == NULL) {
 571                 printf("\t%s: 0(bytes)", str);
 572                 return;
 573         }
 574
 575 #if 0
 576         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
 577                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
 578                 unit = "M";
 579                 w = 1;
 580         } else if ((x->sadb_lifetime_bytes) / 1024) {
 581                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
 582                 unit = "K";
 583                 w = 1;
 584         } else {
 585                 y = (x->sadb_lifetime_bytes) * 1.0;
 586                 unit = "";
 587                 w = 0;
 588         }
 589 #else
 590         y = (x->sadb_lifetime_bytes) * 1.0;
 591         unit = "";
 592         w = 0;
 593 #endif
 594         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
 595 }