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 { -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("\tseq=0x%08x replay=%u flags=0x%08x ", 303 m_sa2->sadb_x_sa2_sequence, 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 printf("\n"); 311 312 /* lifetime */ 313 if (m_lftc != NULL) { 314 time_t tmp_time = time(0); 315 316 printf("\tcreated: %s", 317 str_time(m_lftc->sadb_lifetime_addtime)); 318 printf("\tcurrent: %s\n", str_time(tmp_time)); 319 printf("\tdiff: %lu(s)", 320 (u_long)(m_lftc->sadb_lifetime_addtime == 0 ? 321 0 : (tmp_time - m_lftc->sadb_lifetime_addtime))); 322 323 printf("\thard: %lu(s)", 324 (u_long)(m_lfth == NULL ? 325 0 : m_lfth->sadb_lifetime_addtime)); 326 printf("\tsoft: %lu(s)\n", 327 (u_long)(m_lfts == NULL ? 328 0 : m_lfts->sadb_lifetime_addtime)); 329 330 printf("\tlast: %s", 331 str_time(m_lftc->sadb_lifetime_usetime)); 332 printf("\thard: %lu(s)", 333 (u_long)(m_lfth == NULL ? 334 0 : m_lfth->sadb_lifetime_usetime)); 335 printf("\tsoft: %lu(s)\n", 336 (u_long)(m_lfts == NULL ? 337 0 : m_lfts->sadb_lifetime_usetime)); 338 339 str_lifetime_byte(m_lftc, "current"); 340 str_lifetime_byte(m_lfth, "hard"); 341 str_lifetime_byte(m_lfts, "soft"); 342 printf("\n"); 343 344 printf("\tallocated: %lu", 345 (unsigned long)m_lftc->sadb_lifetime_allocations); 346 printf("\thard: %lu", 347 (u_long)(m_lfth == NULL ? 348 0 : m_lfth->sadb_lifetime_allocations)); 349 printf("\tsoft: %lu\n", 350 (u_long)(m_lfts == NULL ? 351 0 : m_lfts->sadb_lifetime_allocations)); 352 } 353 354 printf("\tsadb_seq=%lu pid=%lu ", 355 (u_long)m->sadb_msg_seq, 356 (u_long)m->sadb_msg_pid); 357 358 /* XXX DEBUG */ 359 printf("refcnt=%u\n", m->sadb_msg_reserved); 360 361 return; 362 } 363 364 void 365 pfkey_spdump(m) 366 struct sadb_msg *m; 367 { 368 char pbuf[NI_MAXSERV]; 369 caddr_t mhp[SADB_EXT_MAX + 1]; 370 struct sadb_address *m_saddr, *m_daddr; 371 struct sadb_x_policy *m_xpl; 372 struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL; 373 struct sockaddr *sa; 374 u_int16_t sport = 0, dport = 0; 375 376 /* check pfkey message. */ 377 if (pfkey_align(m, mhp)) { 378 printf("%s\n", ipsec_strerror()); 379 return; 380 } 381 if (pfkey_check(mhp)) { 382 printf("%s\n", ipsec_strerror()); 383 return; 384 } 385 386 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]; 387 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]; 388 m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY]; 389 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT]; 390 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 391 392 if (m_saddr && m_daddr) { 393 /* source address */ 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, 399 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 400 sport = 0; /*XXX*/ 401 else 402 sport = atoi(pbuf); 403 printf("%s%s ", str_ipaddr(sa), 404 str_prefport(sa->sa_family, 405 m_saddr->sadb_address_prefixlen, sport, 406 m_saddr->sadb_address_proto)); 407 break; 408 default: 409 printf("unknown-af "); 410 break; 411 } 412 413 /* destination address */ 414 sa = (struct sockaddr *)(m_daddr + 1); 415 switch (sa->sa_family) { 416 case AF_INET: 417 case AF_INET6: 418 if (getnameinfo(sa, sa->sa_len, NULL, 0, 419 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 420 dport = 0; /*XXX*/ 421 else 422 dport = atoi(pbuf); 423 printf("%s%s ", str_ipaddr(sa), 424 str_prefport(sa->sa_family, 425 m_daddr->sadb_address_prefixlen, dport, 426 m_saddr->sadb_address_proto)); 427 break; 428 default: 429 printf("unknown-af "); 430 break; 431 } 432 433 /* upper layer protocol */ 434 if (m_saddr->sadb_address_proto != 435 m_daddr->sadb_address_proto) { 436 printf("upper layer protocol mismatched.\n"); 437 return; 438 } 439 str_upperspec(m_saddr->sadb_address_proto, sport, dport); 440 } 441 else 442 printf("(no selector, probably per-socket policy) "); 443 444 /* policy */ 445 { 446 char *d_xpl; 447 448 if (m_xpl == NULL) { 449 printf("no X_POLICY extension.\n"); 450 return; 451 } 452 d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t"); 453 454 /* dump SPD */ 455 printf("\n\t%s\n", d_xpl); 456 free(d_xpl); 457 } 458 459 /* lifetime */ 460 if (m_lftc) { 461 printf("\tcreated: %s ", 462 str_time(m_lftc->sadb_lifetime_addtime)); 463 printf("lastused: %s\n", 464 str_time(m_lftc->sadb_lifetime_usetime)); 465 } 466 if (m_lfth) { 467 printf("\tlifetime: %lu(s) ", 468 (u_long)m_lfth->sadb_lifetime_addtime); 469 printf("validtime: %lu(s)\n", 470 (u_long)m_lfth->sadb_lifetime_usetime); 471 } 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 const int niflag = NI_NUMERICHOST; 494 495 if (sa == NULL) 496 return ""; 497 498 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0) 499 return buf; 500 return NULL; 501 } 502 503 /* 504 * set "/prefix[port number]" to buffer. 505 */ 506 static char * 507 str_prefport(family, pref, port, ulp) 508 u_int family, pref, port, ulp; 509 { 510 static char buf[128]; 511 char prefbuf[128]; 512 char portbuf[128]; 513 int plen; 514 515 switch (family) { 516 case AF_INET: 517 plen = sizeof(struct in_addr) << 3; 518 break; 519 case AF_INET6: 520 plen = sizeof(struct in6_addr) << 3; 521 break; 522 default: 523 return "?"; 524 } 525 526 if (pref == plen) 527 prefbuf[0] = '\0'; 528 else 529 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref); 530 531 if (ulp == IPPROTO_ICMPV6) 532 memset(portbuf, 0, sizeof(portbuf)); 533 else { 534 if (port == IPSEC_PORT_ANY) 535 snprintf(portbuf, sizeof(portbuf), "[%s]", "any"); 536 else 537 snprintf(portbuf, sizeof(portbuf), "[%u]", port); 538 } 539 540 snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf); 541 542 return buf; 543 } 544 545 static void 546 str_upperspec(ulp, p1, p2) 547 u_int ulp, p1, p2; 548 { 549 if (ulp == IPSEC_ULPROTO_ANY) 550 printf("any"); 551 else if (ulp == IPPROTO_ICMPV6) { 552 printf("icmp6"); 553 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY)) 554 printf(" %u,%u", p1, p2); 555 } else { 556 struct protoent *ent; 557 558 switch (ulp) { 559 case IPPROTO_IPV4: 560 printf("ip4"); 561 break; 562 default: 563 ent = getprotobynumber(ulp); 564 if (ent) 565 printf("%s", ent->p_name); 566 else 567 printf("%u", ulp); 568 569 endprotoent(); 570 break; 571 } 572 } 573 } 574 575 /* 576 * set "Mon Day Time Year" to buffer 577 */ 578 static char * 579 str_time(t) 580 time_t t; 581 { 582 static char buf[128]; 583 584 if (t == 0) { 585 int i = 0; 586 for (;i < 20;) buf[i++] = ' '; 587 } else { 588 char *t0; 589 t0 = ctime(&t); 590 memcpy(buf, t0 + 4, 20); 591 } 592 593 buf[20] = '\0'; 594 595 return(buf); 596 } 597 598 static void 599 str_lifetime_byte(x, str) 600 struct sadb_lifetime *x; 601 char *str; 602 { 603 double y; 604 char *unit; 605 int w; 606 607 if (x == NULL) { 608 printf("\t%s: 0(bytes)", str); 609 return; 610 } 611 612 #if 0 613 if ((x->sadb_lifetime_bytes) / 1024 / 1024) { 614 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024; 615 unit = "M"; 616 w = 1; 617 } else if ((x->sadb_lifetime_bytes) / 1024) { 618 y = (x->sadb_lifetime_bytes) * 1.0 / 1024; 619 unit = "K"; 620 w = 1; 621 } else { 622 y = (x->sadb_lifetime_bytes) * 1.0; 623 unit = ""; 624 w = 0; 625 } 626 #else 627 y = (x->sadb_lifetime_bytes) * 1.0; 628 unit = ""; 629 w = 0; 630 #endif 631 printf("\t%s: %.*f(%sbytes)", str, w, y, unit); 632 } 633