1 /* $KAME: pfkey_dump.c,v 1.45 2003/09/08 10:14:56 itojun Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/socket.h> 38 #include <netinet6/ipsec.h> 39 #include <net/pfkeyv2.h> 40 #include <netkey/key_var.h> 41 #include <netkey/key_debug.h> 42 43 #include <netinet/in.h> 44 #include <netinet6/ipsec.h> 45 #include <arpa/inet.h> 46 47 #include <stdlib.h> 48 #include <unistd.h> 49 #include <stdio.h> 50 #include <string.h> 51 #include <time.h> 52 #include <netdb.h> 53 54 #include "ipsec_strerror.h" 55 #include "libpfkey.h" 56 57 /* cope with old kame headers - ugly */ 58 #ifndef SADB_X_AALG_MD5 59 #define SADB_X_AALG_MD5 SADB_AALG_MD5 60 #endif 61 #ifndef SADB_X_AALG_SHA 62 #define SADB_X_AALG_SHA SADB_AALG_SHA 63 #endif 64 #ifndef SADB_X_AALG_NULL 65 #define SADB_X_AALG_NULL SADB_AALG_NULL 66 #endif 67 68 #ifndef SADB_X_EALG_BLOWFISHCBC 69 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC 70 #endif 71 #ifndef SADB_X_EALG_CAST128CBC 72 #define SADB_X_EALG_CAST128CBC SADB_EALG_CAST128CBC 73 #endif 74 #ifndef SADB_X_EALG_RC5CBC 75 #ifdef SADB_EALG_RC5CBC 76 #define SADB_X_EALG_RC5CBC SADB_EALG_RC5CBC 77 #endif 78 #endif 79 80 #define GETMSGSTR(str, num) \ 81 do { \ 82 if (sizeof((str)[0]) == 0 \ 83 || num >= sizeof(str)/sizeof((str)[0])) \ 84 printf("%u ", (num)); \ 85 else if (strlen((str)[(num)]) == 0) \ 86 printf("%u ", (num)); \ 87 else \ 88 printf("%s ", (str)[(num)]); \ 89 } while (0) 90 91 #define GETMSGV2S(v2s, num) \ 92 do { \ 93 struct val2str *p; \ 94 for (p = (v2s); p && p->str; p++) { \ 95 if (p->val == (num)) \ 96 break; \ 97 } \ 98 if (p && p->str) \ 99 printf("%s ", p->str); \ 100 else \ 101 printf("%u ", (num)); \ 102 } while (0) 103 104 static char *str_ipaddr(struct sockaddr *); 105 static char *str_prefport(u_int, u_int, u_int, u_int); 106 static void str_upperspec(u_int, u_int, u_int); 107 static char *str_time(time_t); 108 static void str_lifetime_byte(struct sadb_lifetime *, char *); 109 110 struct val2str { 111 int val; 112 const char *str; 113 }; 114 115 /* 116 * Must to be re-written about following strings. 117 */ 118 static char *str_satype[] = { 119 "unspec", 120 "unknown", 121 "ah", 122 "esp", 123 "unknown", 124 "rsvp", 125 "ospfv2", 126 "ripv2", 127 "mip", 128 "ipcomp", 129 "policy", 130 "tcp" 131 }; 132 133 static char *str_mode[] = { 134 "any", 135 "transport", 136 "tunnel", 137 }; 138 139 static char *str_state[] = { 140 "larval", 141 "mature", 142 "dying", 143 "dead", 144 }; 145 146 static struct val2str str_alg_auth[] = { 147 { SADB_AALG_NONE, "none", }, 148 { SADB_AALG_MD5HMAC, "hmac-md5", }, 149 { SADB_AALG_SHA1HMAC, "hmac-sha1", }, 150 { SADB_X_AALG_MD5, "md5", }, 151 { SADB_X_AALG_SHA, "sha", }, 152 { SADB_X_AALG_NULL, "null", }, 153 { SADB_X_AALG_TCP_MD5, "tcp-md5", }, 154 #ifdef SADB_X_AALG_SHA2_256 155 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, 156 #endif 157 #ifdef SADB_X_AALG_SHA2_384 158 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, 159 #endif 160 #ifdef SADB_X_AALG_SHA2_512 161 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, 162 #endif 163 #ifdef SADB_X_AALG_RIPEMD160HMAC 164 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", }, 165 #endif 166 #ifdef SADB_X_AALG_AES_XCBC_MAC 167 { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", }, 168 #endif 169 { -1, NULL, }, 170 }; 171 172 static struct val2str str_alg_enc[] = { 173 { SADB_EALG_NONE, "none", }, 174 { SADB_EALG_DESCBC, "des-cbc", }, 175 { SADB_EALG_3DESCBC, "3des-cbc", }, 176 { SADB_EALG_NULL, "null", }, 177 #ifdef SADB_X_EALG_RC5CBC 178 { SADB_X_EALG_RC5CBC, "rc5-cbc", }, 179 #endif 180 { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, 181 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, 182 #ifdef SADB_X_EALG_RIJNDAELCBC 183 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, 184 #endif 185 #ifdef SADB_X_EALG_TWOFISHCBC 186 { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", }, 187 #endif 188 #ifdef SADB_X_EALG_AESCTR 189 { SADB_X_EALG_AESCTR, "aes-ctr", }, 190 #endif 191 #ifdef SADB_X_EALG_CAMELLIACBC 192 { SADB_X_EALG_CAMELLIACBC, "camellia-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(m) 210 struct sadb_msg *m; 211 { 212 caddr_t mhp[SADB_EXT_MAX + 1]; 213 struct sadb_sa *m_sa; 214 struct sadb_x_sa2 *m_sa2; 215 struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts; 216 struct sadb_address *m_saddr, *m_daddr, *m_paddr; 217 struct sadb_key *m_auth, *m_enc; 218 struct sadb_ident *m_sid, *m_did; 219 struct sadb_sens *m_sens; 220 221 /* check pfkey message. */ 222 if (pfkey_align(m, mhp)) { 223 printf("%s\n", ipsec_strerror()); 224 return; 225 } 226 if (pfkey_check(mhp)) { 227 printf("%s\n", ipsec_strerror()); 228 return; 229 } 230 231 m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA]; 232 m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2]; 233 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT]; 234 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 235 m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT]; 236 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]; 237 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]; 238 m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY]; 239 m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH]; 240 m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT]; 241 m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC]; 242 m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST]; 243 m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY]; 244 245 /* source address */ 246 if (m_saddr == NULL) { 247 printf("no ADDRESS_SRC extension.\n"); 248 return; 249 } 250 printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1))); 251 252 /* destination address */ 253 if (m_daddr == NULL) { 254 printf("no ADDRESS_DST extension.\n"); 255 return; 256 } 257 printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1))); 258 259 /* SA type */ 260 if (m_sa == NULL) { 261 printf("no SA extension.\n"); 262 return; 263 } 264 if (m_sa2 == NULL) { 265 printf("no SA2 extension.\n"); 266 return; 267 } 268 printf("\n\t"); 269 270 GETMSGSTR(str_satype, m->sadb_msg_satype); 271 272 printf("mode="); 273 GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode); 274 275 printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n", 276 (u_int32_t)ntohl(m_sa->sadb_sa_spi), 277 (u_int32_t)ntohl(m_sa->sadb_sa_spi), 278 (u_int32_t)m_sa2->sadb_x_sa2_reqid, 279 (u_int32_t)m_sa2->sadb_x_sa2_reqid); 280 281 /* encryption key */ 282 if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) { 283 printf("\tC: "); 284 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt); 285 } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) { 286 if (m_enc != NULL) { 287 printf("\tE: "); 288 GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt); 289 ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc), 290 m_enc->sadb_key_bits / 8); 291 printf("\n"); 292 } 293 } 294 295 /* authentication key */ 296 if (m_auth != NULL) { 297 printf("\tA: "); 298 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth); 299 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth), 300 m_auth->sadb_key_bits / 8); 301 printf("\n"); 302 } 303 304 /* replay windoe size & flags */ 305 printf("\tseq=0x%08x replay=%u flags=0x%08x ", 306 m_sa2->sadb_x_sa2_sequence, 307 m_sa->sadb_sa_replay, 308 m_sa->sadb_sa_flags); 309 310 /* state */ 311 printf("state="); 312 GETMSGSTR(str_state, m_sa->sadb_sa_state); 313 printf("\n"); 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 printf("\tsadb_seq=%lu pid=%lu ", 358 (u_long)m->sadb_msg_seq, 359 (u_long)m->sadb_msg_pid); 360 361 /* XXX DEBUG */ 362 printf("refcnt=%u\n", m->sadb_msg_reserved); 363 364 return; 365 } 366 367 void 368 pfkey_spdump(m) 369 struct sadb_msg *m; 370 { 371 char pbuf[NI_MAXSERV]; 372 caddr_t mhp[SADB_EXT_MAX + 1]; 373 struct sadb_address *m_saddr, *m_daddr; 374 struct sadb_x_policy *m_xpl; 375 struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL; 376 struct sockaddr *sa; 377 u_int16_t sport = 0, dport = 0; 378 379 /* check pfkey message. */ 380 if (pfkey_align(m, mhp)) { 381 printf("%s\n", ipsec_strerror()); 382 return; 383 } 384 if (pfkey_check(mhp)) { 385 printf("%s\n", ipsec_strerror()); 386 return; 387 } 388 389 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]; 390 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]; 391 m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY]; 392 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT]; 393 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 394 395 if (m_saddr && m_daddr) { 396 /* source address */ 397 sa = (struct sockaddr *)(m_saddr + 1); 398 switch (sa->sa_family) { 399 case AF_INET: 400 case AF_INET6: 401 if (getnameinfo(sa, sa->sa_len, NULL, 0, 402 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 403 sport = 0; /*XXX*/ 404 else 405 sport = atoi(pbuf); 406 printf("%s%s ", str_ipaddr(sa), 407 str_prefport(sa->sa_family, 408 m_saddr->sadb_address_prefixlen, sport, 409 m_saddr->sadb_address_proto)); 410 break; 411 default: 412 printf("unknown-af "); 413 break; 414 } 415 416 /* destination address */ 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, 422 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 423 dport = 0; /*XXX*/ 424 else 425 dport = atoi(pbuf); 426 printf("%s%s ", str_ipaddr(sa), 427 str_prefport(sa->sa_family, 428 m_daddr->sadb_address_prefixlen, dport, 429 m_saddr->sadb_address_proto)); 430 break; 431 default: 432 printf("unknown-af "); 433 break; 434 } 435 436 /* upper layer protocol */ 437 if (m_saddr->sadb_address_proto != 438 m_daddr->sadb_address_proto) { 439 printf("upper layer protocol mismatched.\n"); 440 return; 441 } 442 str_upperspec(m_saddr->sadb_address_proto, sport, dport); 443 } 444 else 445 printf("(no selector, probably per-socket policy) "); 446 447 /* policy */ 448 { 449 char *d_xpl; 450 451 if (m_xpl == NULL) { 452 printf("no X_POLICY extension.\n"); 453 return; 454 } 455 d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t"); 456 457 /* dump SPD */ 458 printf("\n\t%s\n", d_xpl); 459 free(d_xpl); 460 } 461 462 /* lifetime */ 463 if (m_lftc) { 464 printf("\tcreated: %s ", 465 str_time(m_lftc->sadb_lifetime_addtime)); 466 printf("lastused: %s\n", 467 str_time(m_lftc->sadb_lifetime_usetime)); 468 } 469 if (m_lfth) { 470 printf("\tlifetime: %lu(s) ", 471 (u_long)m_lfth->sadb_lifetime_addtime); 472 printf("validtime: %lu(s)\n", 473 (u_long)m_lfth->sadb_lifetime_usetime); 474 } 475 476 477 printf("\tspid=%ld seq=%ld pid=%ld\n", 478 (u_long)m_xpl->sadb_x_policy_id, 479 (u_long)m->sadb_msg_seq, 480 (u_long)m->sadb_msg_pid); 481 482 /* XXX TEST */ 483 printf("\trefcnt=%u\n", m->sadb_msg_reserved); 484 485 return; 486 } 487 488 /* 489 * set "ipaddress" to buffer. 490 */ 491 static char * 492 str_ipaddr(sa) 493 struct sockaddr *sa; 494 { 495 static char buf[NI_MAXHOST]; 496 const int niflag = NI_NUMERICHOST; 497 498 if (sa == NULL) 499 return ""; 500 501 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0) 502 return buf; 503 return NULL; 504 } 505 506 /* 507 * set "/prefix[port number]" to buffer. 508 */ 509 static char * 510 str_prefport(family, pref, port, ulp) 511 u_int family, pref, port, ulp; 512 { 513 static char buf[128]; 514 char prefbuf[128]; 515 char portbuf[128]; 516 int plen; 517 518 switch (family) { 519 case AF_INET: 520 plen = sizeof(struct in_addr) << 3; 521 break; 522 case AF_INET6: 523 plen = sizeof(struct in6_addr) << 3; 524 break; 525 default: 526 return "?"; 527 } 528 529 if (pref == plen) 530 prefbuf[0] = '\0'; 531 else 532 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref); 533 534 if (ulp == IPPROTO_ICMPV6) 535 memset(portbuf, 0, sizeof(portbuf)); 536 else { 537 if (port == IPSEC_PORT_ANY) 538 snprintf(portbuf, sizeof(portbuf), "[%s]", "any"); 539 else 540 snprintf(portbuf, sizeof(portbuf), "[%u]", port); 541 } 542 543 snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf); 544 545 return buf; 546 } 547 548 static void 549 str_upperspec(ulp, p1, p2) 550 u_int ulp, p1, p2; 551 { 552 if (ulp == IPSEC_ULPROTO_ANY) 553 printf("any"); 554 else if (ulp == IPPROTO_ICMPV6) { 555 printf("icmp6"); 556 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY)) 557 printf(" %u,%u", p1, p2); 558 } else { 559 struct protoent *ent; 560 561 switch (ulp) { 562 case IPPROTO_IPV4: 563 printf("ip4"); 564 break; 565 default: 566 ent = getprotobynumber(ulp); 567 if (ent) 568 printf("%s", ent->p_name); 569 else 570 printf("%u", ulp); 571 572 endprotoent(); 573 break; 574 } 575 } 576 } 577 578 /* 579 * set "Mon Day Time Year" to buffer 580 */ 581 static char * 582 str_time(t) 583 time_t t; 584 { 585 static char buf[128]; 586 587 if (t == 0) { 588 int i = 0; 589 for (;i < 20;) buf[i++] = ' '; 590 } else { 591 char *t0; 592 t0 = ctime(&t); 593 memcpy(buf, t0 + 4, 20); 594 } 595 596 buf[20] = '\0'; 597 598 return(buf); 599 } 600 601 static void 602 str_lifetime_byte(x, str) 603 struct sadb_lifetime *x; 604 char *str; 605 { 606 double y; 607 char *unit; 608 int w; 609 610 if (x == NULL) { 611 printf("\t%s: 0(bytes)", str); 612 return; 613 } 614 615 #if 0 616 if ((x->sadb_lifetime_bytes) / 1024 / 1024) { 617 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024; 618 unit = "M"; 619 w = 1; 620 } else if ((x->sadb_lifetime_bytes) / 1024) { 621 y = (x->sadb_lifetime_bytes) * 1.0 / 1024; 622 unit = "K"; 623 w = 1; 624 } else { 625 y = (x->sadb_lifetime_bytes) * 1.0; 626 unit = ""; 627 w = 0; 628 } 629 #else 630 y = (x->sadb_lifetime_bytes) * 1.0; 631 unit = ""; 632 w = 0; 633 #endif 634 printf("\t%s: %.*f(%sbytes)", str, w, y, unit); 635 } 636