1 /* $FreeBSD$ */ 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 } 597