1 /* $KAME: pfkey_dump.c,v 1.28 2001/06/27 10:46:51 sakane 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("%d ", (num)); \ 85 else if (strlen((str)[(num)]) == 0) \ 86 printf("%d ", (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("%d ", (num)); \ 102 } while (0) 103 104 static char *str_ipaddr(struct sockaddr *); 105 static char *str_prefport(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 }; 129 130 static char *str_mode[] = { 131 "any", 132 "transport", 133 "tunnel", 134 }; 135 136 static char *str_upper[] = { 137 /*0*/ "ip", "icmp", "igmp", "ggp", "ip4", 138 "", "tcp", "", "egp", "", 139 /*10*/ "", "", "", "", "", 140 "", "", "udp", "", "", 141 /*20*/ "", "", "idp", "", "", 142 "", "", "", "", "tp", 143 /*30*/ "", "", "", "", "", 144 "", "", "", "", "", 145 /*40*/ "", "ip6", "", "rt6", "frag6", 146 "", "rsvp", "gre", "", "", 147 /*50*/ "esp", "ah", "", "", "", 148 "", "", "", "icmp6", "none", 149 /*60*/ "dst6", 150 }; 151 152 static char *str_state[] = { 153 "larval", 154 "mature", 155 "dying", 156 "dead", 157 }; 158 159 static struct val2str str_alg_auth[] = { 160 { SADB_AALG_NONE, "none", }, 161 { SADB_AALG_MD5HMAC, "hmac-md5", }, 162 { SADB_AALG_SHA1HMAC, "hmac-sha1", }, 163 { SADB_X_AALG_MD5, "md5", }, 164 { SADB_X_AALG_SHA, "sha", }, 165 { SADB_X_AALG_NULL, "null", }, 166 #ifdef SADB_X_AALG_SHA2_256 167 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, 168 #endif 169 #ifdef SADB_X_AALG_SHA2_384 170 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, 171 #endif 172 #ifdef SADB_X_AALG_SHA2_512 173 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, 174 #endif 175 { -1, NULL, }, 176 }; 177 178 static struct val2str str_alg_enc[] = { 179 { SADB_EALG_NONE, "none", }, 180 { SADB_EALG_DESCBC, "des-cbc", }, 181 { SADB_EALG_3DESCBC, "3des-cbc", }, 182 { SADB_EALG_NULL, "null", }, 183 #ifdef SADB_X_EALG_RC5CBC 184 { SADB_X_EALG_RC5CBC, "rc5-cbc", }, 185 #endif 186 { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, 187 { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, 188 #ifdef SADB_X_EALG_RIJNDAELCBC 189 { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, 190 #endif 191 #ifdef SADB_X_EALG_TWOFISHCBC 192 { SADB_X_EALG_TWOFISHCBC, "twofish-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_lft = NULL; 376 struct sockaddr *sa; 377 u_int16_t port; 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_lft = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD]; 393 394 /* source address */ 395 if (m_saddr == NULL) { 396 printf("no ADDRESS_SRC extension.\n"); 397 return; 398 } 399 sa = (struct sockaddr *)(m_saddr + 1); 400 switch (sa->sa_family) { 401 case AF_INET: 402 case AF_INET6: 403 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf), 404 NI_NUMERICSERV) != 0) 405 port = 0; /*XXX*/ 406 else 407 port = atoi(pbuf); 408 printf("%s%s ", str_ipaddr(sa), 409 str_prefport(sa->sa_family, 410 m_saddr->sadb_address_prefixlen, port)); 411 break; 412 default: 413 printf("unknown-af "); 414 break; 415 } 416 417 /* destination address */ 418 if (m_daddr == NULL) { 419 printf("no ADDRESS_DST extension.\n"); 420 return; 421 } 422 sa = (struct sockaddr *)(m_daddr + 1); 423 switch (sa->sa_family) { 424 case AF_INET: 425 case AF_INET6: 426 if (getnameinfo(sa, sa->sa_len, NULL, 0, pbuf, sizeof(pbuf), 427 NI_NUMERICSERV) != 0) 428 port = 0; /*XXX*/ 429 else 430 port = atoi(pbuf); 431 printf("%s%s ", str_ipaddr(sa), 432 str_prefport(sa->sa_family, 433 m_daddr->sadb_address_prefixlen, port)); 434 break; 435 default: 436 printf("unknown-af "); 437 break; 438 } 439 440 /* upper layer protocol */ 441 if (m_saddr->sadb_address_proto != m_daddr->sadb_address_proto) { 442 printf("upper layer protocol mismatched.\n"); 443 return; 444 } 445 if (m_saddr->sadb_address_proto == IPSEC_ULPROTO_ANY) 446 printf("any"); 447 else 448 GETMSGSTR(str_upper, m_saddr->sadb_address_proto); 449 450 /* policy */ 451 { 452 char *d_xpl; 453 454 if (m_xpl == NULL) { 455 printf("no X_POLICY extension.\n"); 456 return; 457 } 458 d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t"); 459 460 /* dump SPD */ 461 printf("\n\t%s\n", d_xpl); 462 free(d_xpl); 463 } 464 465 /* lifetime */ 466 if (m_lft) { 467 printf("\tlifetime:%lu validtime:%lu\n", 468 (u_long)m_lft->sadb_lifetime_addtime, 469 (u_long)m_lft->sadb_lifetime_usetime); 470 } 471 472 printf("\tspid=%ld seq=%ld pid=%ld\n", 473 (u_long)m_xpl->sadb_x_policy_id, 474 (u_long)m->sadb_msg_seq, 475 (u_long)m->sadb_msg_pid); 476 477 /* XXX TEST */ 478 printf("\trefcnt=%u\n", m->sadb_msg_reserved); 479 480 return; 481 } 482 483 /* 484 * set "ipaddress" to buffer. 485 */ 486 static char * 487 str_ipaddr(sa) 488 struct sockaddr *sa; 489 { 490 static char buf[NI_MAXHOST]; 491 #ifdef NI_WITHSCOPEID 492 const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID; 493 #else 494 const int niflag = NI_NUMERICHOST; 495 #endif 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) 510 u_int family, pref, port; 511 { 512 static char buf[128]; 513 char prefbuf[10]; 514 char portbuf[10]; 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 (port == IPSEC_PORT_ANY) 534 snprintf(portbuf, sizeof(portbuf), "[%s]", "any"); 535 else 536 snprintf(portbuf, sizeof(portbuf), "[%u]", port); 537 538 snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf); 539 540 return buf; 541 } 542 543 /* 544 * set "Mon Day Time Year" to buffer 545 */ 546 static char * 547 str_time(t) 548 time_t t; 549 { 550 static char buf[128]; 551 552 if (t == 0) { 553 int i = 0; 554 for (;i < 20;) buf[i++] = ' '; 555 } else { 556 char *t0; 557 t0 = ctime(&t); 558 memcpy(buf, t0 + 4, 20); 559 } 560 561 buf[20] = '\0'; 562 563 return(buf); 564 } 565 566 static void 567 str_lifetime_byte(x, str) 568 struct sadb_lifetime *x; 569 char *str; 570 { 571 double y; 572 char *unit; 573 int w; 574 575 if (x == NULL) { 576 printf("\t%s: 0(bytes)", str); 577 return; 578 } 579 580 #if 0 581 if ((x->sadb_lifetime_bytes) / 1024 / 1024) { 582 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024; 583 unit = "M"; 584 w = 1; 585 } else if ((x->sadb_lifetime_bytes) / 1024) { 586 y = (x->sadb_lifetime_bytes) * 1.0 / 1024; 587 unit = "K"; 588 w = 1; 589 } else { 590 y = (x->sadb_lifetime_bytes) * 1.0; 591 unit = ""; 592 w = 0; 593 } 594 #else 595 y = (x->sadb_lifetime_bytes) * 1.0; 596 unit = ""; 597 w = 0; 598 #endif 599 printf("\t%s: %.*f(%sbytes)", str, w, y, unit); 600 } 601