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 <netipsec/ipsec.h> 39 #include <net/pfkeyv2.h> 40 #include <netipsec/key_var.h> 41 #include <netipsec/key_debug.h> 42 43 #include <netinet/in.h> 44 #include <arpa/inet.h> 45 46 #include <stdlib.h> 47 #include <unistd.h> 48 #include <stdio.h> 49 #include <string.h> 50 #include <time.h> 51 #include <netdb.h> 52 53 #include "ipsec_strerror.h" 54 #include "libpfkey.h" 55 56 /* cope with old kame headers - ugly */ 57 #ifndef SADB_X_AALG_MD5 58 #define SADB_X_AALG_MD5 SADB_AALG_MD5 59 #endif 60 #ifndef SADB_X_AALG_SHA 61 #define SADB_X_AALG_SHA SADB_AALG_SHA 62 #endif 63 #ifndef SADB_X_AALG_NULL 64 #define SADB_X_AALG_NULL SADB_AALG_NULL 65 #endif 66 67 #ifndef SADB_X_EALG_BLOWFISHCBC 68 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC 69 #endif 70 #ifndef SADB_X_EALG_CAST128CBC 71 #define SADB_X_EALG_CAST128CBC SADB_EALG_CAST128CBC 72 #endif 73 #ifndef SADB_X_EALG_RC5CBC 74 #ifdef SADB_EALG_RC5CBC 75 #define SADB_X_EALG_RC5CBC SADB_EALG_RC5CBC 76 #endif 77 #endif 78 79 #define GETMSGSTR(str, num) \ 80 do { \ 81 if (sizeof((str)[0]) == 0 \ 82 || num >= sizeof(str)/sizeof((str)[0])) \ 83 printf("%u ", (num)); \ 84 else if (strlen((str)[(num)]) == 0) \ 85 printf("%u ", (num)); \ 86 else \ 87 printf("%s ", (str)[(num)]); \ 88 } while (0) 89 90 #define GETMSGV2S(v2s, num) \ 91 do { \ 92 struct val2str *p; \ 93 for (p = (v2s); p && p->str; p++) { \ 94 if (p->val == (num)) \ 95 break; \ 96 } \ 97 if (p && p->str) \ 98 printf("%s ", p->str); \ 99 else \ 100 printf("%u ", (num)); \ 101 } while (0) 102 103 static char *str_ipaddr(struct sockaddr *); 104 static char *str_prefport(u_int, u_int, u_int, u_int); 105 static void str_upperspec(u_int, u_int, u_int); 106 static char *str_time(time_t); 107 static void str_lifetime_byte(struct sadb_lifetime *, char *); 108 109 struct val2str { 110 int val; 111 const char *str; 112 }; 113 114 /* 115 * Must to be re-written about following strings. 116 */ 117 static char *str_satype[] = { 118 "unspec", 119 "unknown", 120 "ah", 121 "esp", 122 "unknown", 123 "rsvp", 124 "ospfv2", 125 "ripv2", 126 "mip", 127 "ipcomp", 128 "policy", 129 "tcp" 130 }; 131 132 static char *str_mode[] = { 133 "any", 134 "transport", 135 "tunnel", 136 }; 137 138 static char *str_state[] = { 139 "larval", 140 "mature", 141 "dying", 142 "dead", 143 }; 144 145 static struct val2str str_alg_auth[] = { 146 { SADB_AALG_NONE, "none", }, 147 { SADB_AALG_MD5HMAC, "hmac-md5", }, 148 { SADB_AALG_SHA1HMAC, "hmac-sha1", }, 149 { SADB_X_AALG_MD5, "md5", }, 150 { SADB_X_AALG_SHA, "sha", }, 151 { SADB_X_AALG_NULL, "null", }, 152 { SADB_X_AALG_TCP_MD5, "tcp-md5", }, 153 #ifdef SADB_X_AALG_SHA2_256 154 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, 155 #endif 156 #ifdef SADB_X_AALG_SHA2_384 157 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, 158 #endif 159 #ifdef SADB_X_AALG_SHA2_512 160 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, 161 #endif 162 #ifdef SADB_X_AALG_RIPEMD160HMAC 163 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", }, 164 #endif 165 #ifdef SADB_X_AALG_AES_XCBC_MAC 166 { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", }, 167 #endif 168 { -1, NULL, }, 169 }; 170 171 static struct val2str str_alg_enc[] = { 172 { SADB_EALG_NONE, "none", }, 173 { SADB_EALG_DESCBC, "des-cbc", }, 174 { SADB_EALG_3DESCBC, "3des-cbc", }, 175 { SADB_EALG_NULL, "null", }, 176 #ifdef SADB_X_EALG_RC5CBC 177 { SADB_X_EALG_RC5CBC, "rc5-cbc", }, 178 #endif 179 { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, 180 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, 181 #ifdef SADB_X_EALG_RIJNDAELCBC 182 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, 183 #endif 184 #ifdef SADB_X_EALG_TWOFISHCBC 185 { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", }, 186 #endif 187 #ifdef SADB_X_EALG_AESCTR 188 { SADB_X_EALG_AESCTR, "aes-ctr", }, 189 #endif 190 #ifdef SADB_X_EALG_CAMELLIACBC 191 { SADB_X_EALG_CAMELLIACBC, "camellia-cbc", }, 192 #endif 193 { -1, NULL, }, 194 }; 195 196 static struct val2str str_alg_comp[] = { 197 { SADB_X_CALG_NONE, "none", }, 198 { SADB_X_CALG_OUI, "oui", }, 199 { SADB_X_CALG_DEFLATE, "deflate", }, 200 { SADB_X_CALG_LZS, "lzs", }, 201 { -1, NULL, }, 202 }; 203 204 /* 205 * dump SADB_MSG formated. For debugging, you should use kdebug_sadb(). 206 */ 207 void 208 pfkey_sadump(m) 209 struct sadb_msg *m; 210 { 211 caddr_t mhp[SADB_EXT_MAX + 1]; 212 struct sadb_sa *m_sa; 213 struct sadb_x_sa2 *m_sa2; 214 struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts; 215 struct sadb_address *m_saddr, *m_daddr, *m_paddr; 216 struct sadb_key *m_auth, *m_enc; 217 struct sadb_ident *m_sid, *m_did; 218 struct sadb_sens *m_sens; 219 220 /* check pfkey message. */ 221 if (pfkey_align(m, mhp)) { 222 printf("%s\n", ipsec_strerror()); 223 return; 224 } 225 if (pfkey_check(mhp)) { 226 printf("%s\n", ipsec_strerror()); 227 return; 228 } 229 230 m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA]; 231 m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2]; 232 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT]; 233 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 234 m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT]; 235 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]; 236 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]; 237 m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY]; 238 m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH]; 239 m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT]; 240 m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC]; 241 m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST]; 242 m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY]; 243 244 /* source address */ 245 if (m_saddr == NULL) { 246 printf("no ADDRESS_SRC extension.\n"); 247 return; 248 } 249 printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1))); 250 251 /* destination address */ 252 if (m_daddr == NULL) { 253 printf("no ADDRESS_DST extension.\n"); 254 return; 255 } 256 printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1))); 257 258 /* SA type */ 259 if (m_sa == NULL) { 260 printf("no SA extension.\n"); 261 return; 262 } 263 if (m_sa2 == NULL) { 264 printf("no SA2 extension.\n"); 265 return; 266 } 267 printf("\n\t"); 268 269 GETMSGSTR(str_satype, m->sadb_msg_satype); 270 271 printf("mode="); 272 GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode); 273 274 printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n", 275 (u_int32_t)ntohl(m_sa->sadb_sa_spi), 276 (u_int32_t)ntohl(m_sa->sadb_sa_spi), 277 (u_int32_t)m_sa2->sadb_x_sa2_reqid, 278 (u_int32_t)m_sa2->sadb_x_sa2_reqid); 279 280 /* encryption key */ 281 if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) { 282 printf("\tC: "); 283 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt); 284 } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) { 285 if (m_enc != NULL) { 286 printf("\tE: "); 287 GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt); 288 ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc), 289 m_enc->sadb_key_bits / 8); 290 printf("\n"); 291 } 292 } 293 294 /* authentication key */ 295 if (m_auth != NULL) { 296 printf("\tA: "); 297 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth); 298 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth), 299 m_auth->sadb_key_bits / 8); 300 printf("\n"); 301 } 302 303 /* replay windoe size & flags */ 304 printf("\tseq=0x%08x replay=%u flags=0x%08x ", 305 m_sa2->sadb_x_sa2_sequence, 306 m_sa->sadb_sa_replay, 307 m_sa->sadb_sa_flags); 308 309 /* state */ 310 printf("state="); 311 GETMSGSTR(str_state, m_sa->sadb_sa_state); 312 printf("\n"); 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 printf("\tsadb_seq=%lu pid=%lu ", 357 (u_long)m->sadb_msg_seq, 358 (u_long)m->sadb_msg_pid); 359 360 /* XXX DEBUG */ 361 printf("refcnt=%u\n", m->sadb_msg_reserved); 362 363 return; 364 } 365 366 void 367 pfkey_spdump(m) 368 struct sadb_msg *m; 369 { 370 char pbuf[NI_MAXSERV]; 371 caddr_t mhp[SADB_EXT_MAX + 1]; 372 struct sadb_address *m_saddr, *m_daddr; 373 struct sadb_x_policy *m_xpl; 374 struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL; 375 struct sockaddr *sa; 376 u_int16_t sport = 0, dport = 0; 377 378 /* check pfkey message. */ 379 if (pfkey_align(m, mhp)) { 380 printf("%s\n", ipsec_strerror()); 381 return; 382 } 383 if (pfkey_check(mhp)) { 384 printf("%s\n", ipsec_strerror()); 385 return; 386 } 387 388 m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]; 389 m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]; 390 m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY]; 391 m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT]; 392 m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 393 394 if (m_saddr && m_daddr) { 395 /* source address */ 396 sa = (struct sockaddr *)(m_saddr + 1); 397 switch (sa->sa_family) { 398 case AF_INET: 399 case AF_INET6: 400 if (getnameinfo(sa, sa->sa_len, NULL, 0, 401 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 402 sport = 0; /*XXX*/ 403 else 404 sport = atoi(pbuf); 405 printf("%s%s ", str_ipaddr(sa), 406 str_prefport(sa->sa_family, 407 m_saddr->sadb_address_prefixlen, sport, 408 m_saddr->sadb_address_proto)); 409 break; 410 default: 411 printf("unknown-af "); 412 break; 413 } 414 415 /* destination address */ 416 sa = (struct sockaddr *)(m_daddr + 1); 417 switch (sa->sa_family) { 418 case AF_INET: 419 case AF_INET6: 420 if (getnameinfo(sa, sa->sa_len, NULL, 0, 421 pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0) 422 dport = 0; /*XXX*/ 423 else 424 dport = atoi(pbuf); 425 printf("%s%s ", str_ipaddr(sa), 426 str_prefport(sa->sa_family, 427 m_daddr->sadb_address_prefixlen, dport, 428 m_saddr->sadb_address_proto)); 429 break; 430 default: 431 printf("unknown-af "); 432 break; 433 } 434 435 /* upper layer protocol */ 436 if (m_saddr->sadb_address_proto != 437 m_daddr->sadb_address_proto) { 438 printf("upper layer protocol mismatched.\n"); 439 return; 440 } 441 str_upperspec(m_saddr->sadb_address_proto, sport, dport); 442 } 443 else 444 printf("(no selector, probably per-socket policy) "); 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_lftc) { 463 printf("\tcreated: %s ", 464 str_time(m_lftc->sadb_lifetime_addtime)); 465 printf("lastused: %s\n", 466 str_time(m_lftc->sadb_lifetime_usetime)); 467 } 468 if (m_lfth) { 469 printf("\tlifetime: %lu(s) ", 470 (u_long)m_lfth->sadb_lifetime_addtime); 471 printf("validtime: %lu(s)\n", 472 (u_long)m_lfth->sadb_lifetime_usetime); 473 } 474 475 476 printf("\tspid=%ld seq=%ld pid=%ld\n", 477 (u_long)m_xpl->sadb_x_policy_id, 478 (u_long)m->sadb_msg_seq, 479 (u_long)m->sadb_msg_pid); 480 481 /* XXX TEST */ 482 printf("\trefcnt=%u\n", m->sadb_msg_reserved); 483 484 return; 485 } 486 487 /* 488 * set "ipaddress" to buffer. 489 */ 490 static char * 491 str_ipaddr(sa) 492 struct sockaddr *sa; 493 { 494 static char buf[NI_MAXHOST]; 495 const int niflag = NI_NUMERICHOST; 496 497 if (sa == NULL) 498 return ""; 499 500 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0) 501 return buf; 502 return NULL; 503 } 504 505 /* 506 * set "/prefix[port number]" to buffer. 507 */ 508 static char * 509 str_prefport(family, pref, port, ulp) 510 u_int family, pref, port, ulp; 511 { 512 static char buf[128]; 513 char prefbuf[128]; 514 char portbuf[128]; 515 int plen; 516 517 switch (family) { 518 case AF_INET: 519 plen = sizeof(struct in_addr) << 3; 520 break; 521 case AF_INET6: 522 plen = sizeof(struct in6_addr) << 3; 523 break; 524 default: 525 return "?"; 526 } 527 528 if (pref == plen) 529 prefbuf[0] = '\0'; 530 else 531 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref); 532 533 if (ulp == IPPROTO_ICMPV6) 534 memset(portbuf, 0, sizeof(portbuf)); 535 else { 536 if (port == IPSEC_PORT_ANY) 537 snprintf(portbuf, sizeof(portbuf), "[%s]", "any"); 538 else 539 snprintf(portbuf, sizeof(portbuf), "[%u]", port); 540 } 541 542 snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf); 543 544 return buf; 545 } 546 547 static void 548 str_upperspec(ulp, p1, p2) 549 u_int ulp, p1, p2; 550 { 551 if (ulp == IPSEC_ULPROTO_ANY) 552 printf("any"); 553 else if (ulp == IPPROTO_ICMPV6) { 554 printf("icmp6"); 555 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY)) 556 printf(" %u,%u", p1, p2); 557 } else { 558 struct protoent *ent; 559 560 switch (ulp) { 561 case IPPROTO_IPV4: 562 printf("ip4"); 563 break; 564 default: 565 ent = getprotobynumber(ulp); 566 if (ent) 567 printf("%s", ent->p_name); 568 else 569 printf("%u", ulp); 570 571 endprotoent(); 572 break; 573 } 574 } 575 } 576 577 /* 578 * set "Mon Day Time Year" to buffer 579 */ 580 static char * 581 str_time(t) 582 time_t t; 583 { 584 static char buf[128]; 585 586 if (t == 0) { 587 int i = 0; 588 for (;i < 20;) buf[i++] = ' '; 589 } else { 590 char *t0; 591 t0 = ctime(&t); 592 memcpy(buf, t0 + 4, 20); 593 } 594 595 buf[20] = '\0'; 596 597 return(buf); 598 } 599 600 static void 601 str_lifetime_byte(x, str) 602 struct sadb_lifetime *x; 603 char *str; 604 { 605 double y; 606 char *unit; 607 int w; 608 609 if (x == NULL) { 610 printf("\t%s: 0(bytes)", str); 611 return; 612 } 613 614 #if 0 615 if ((x->sadb_lifetime_bytes) / 1024 / 1024) { 616 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024; 617 unit = "M"; 618 w = 1; 619 } else if ((x->sadb_lifetime_bytes) / 1024) { 620 y = (x->sadb_lifetime_bytes) * 1.0 / 1024; 621 unit = "K"; 622 w = 1; 623 } else { 624 y = (x->sadb_lifetime_bytes) * 1.0; 625 unit = ""; 626 w = 0; 627 } 628 #else 629 y = (x->sadb_lifetime_bytes) * 1.0; 630 unit = ""; 631 w = 0; 632 #endif 633 printf("\t%s: %.*f(%sbytes)", str, w, y, unit); 634 } 635