1 /* $OpenBSD: pfkdump.c,v 1.30 2011/04/13 11:31:27 markus Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Markus Friedl. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 #include <sys/param.h> 27 #include <sys/socket.h> 28 #include <sys/time.h> 29 #include <sys/sysctl.h> 30 #include <net/pfkeyv2.h> 31 #include <netinet/ip_ipsp.h> 32 #include <netdb.h> 33 #include <string.h> 34 #include <unistd.h> 35 #include <stdlib.h> 36 #include <stdio.h> 37 #include <err.h> 38 #include <errno.h> 39 40 #include "ipsecctl.h" 41 #include "pfkey.h" 42 43 static void print_proto(struct sadb_ext *, struct sadb_msg *); 44 static void print_flow(struct sadb_ext *, struct sadb_msg *); 45 static void print_supp(struct sadb_ext *, struct sadb_msg *); 46 static void print_prop(struct sadb_ext *, struct sadb_msg *); 47 static void print_sens(struct sadb_ext *, struct sadb_msg *); 48 static void print_spir(struct sadb_ext *, struct sadb_msg *); 49 static void print_policy(struct sadb_ext *, struct sadb_msg *); 50 static void print_sa(struct sadb_ext *, struct sadb_msg *); 51 static void print_addr(struct sadb_ext *, struct sadb_msg *); 52 static void print_key(struct sadb_ext *, struct sadb_msg *); 53 static void print_life(struct sadb_ext *, struct sadb_msg *); 54 static void print_ident(struct sadb_ext *, struct sadb_msg *); 55 static void print_auth(struct sadb_ext *, struct sadb_msg *); 56 static void print_cred(struct sadb_ext *, struct sadb_msg *); 57 static void print_udpenc(struct sadb_ext *, struct sadb_msg *); 58 static void print_tag(struct sadb_ext *, struct sadb_msg *); 59 static void print_tap(struct sadb_ext *, struct sadb_msg *); 60 61 static struct idname *lookup(struct idname *, u_int8_t); 62 static char *lookup_name(struct idname *, u_int8_t); 63 static void print_ext(struct sadb_ext *, struct sadb_msg *); 64 65 void pfkey_print_raw(u_int8_t *, ssize_t); 66 67 struct sadb_ext *extensions[SADB_EXT_MAX + 1]; 68 69 struct idname { 70 u_int8_t id; 71 char *name; 72 void (*func)(struct sadb_ext *, struct sadb_msg *); 73 }; 74 75 struct idname ext_types[] = { 76 { SADB_EXT_RESERVED, "reserved", NULL }, 77 { SADB_EXT_SA, "sa", print_sa }, 78 { SADB_EXT_LIFETIME_CURRENT, "lifetime_cur", print_life }, 79 { SADB_EXT_LIFETIME_HARD, "lifetime_hard", print_life }, 80 { SADB_EXT_LIFETIME_SOFT, "lifetime_soft", print_life }, 81 { SADB_EXT_ADDRESS_SRC, "address_src", print_addr }, 82 { SADB_EXT_ADDRESS_DST, "address_dst", print_addr }, 83 { SADB_EXT_ADDRESS_PROXY, "address_proxy", print_addr }, 84 { SADB_EXT_KEY_AUTH, "key_auth", print_key }, 85 { SADB_EXT_KEY_ENCRYPT, "key_encrypt", print_key }, 86 { SADB_EXT_IDENTITY_SRC, "identity_src", print_ident }, 87 { SADB_EXT_IDENTITY_DST, "identity_dst", print_ident }, 88 { SADB_EXT_SENSITIVITY, "sensitivity", print_sens }, 89 { SADB_EXT_PROPOSAL, "proposal", print_prop }, 90 { SADB_EXT_SUPPORTED_AUTH, "supported_auth", print_supp }, 91 { SADB_EXT_SUPPORTED_ENCRYPT, "supported_encrypt", print_supp }, 92 { SADB_EXT_SPIRANGE, "spirange", print_spir }, 93 { SADB_X_EXT_SRC_MASK, "src_mask", print_addr }, 94 { SADB_X_EXT_DST_MASK, "dst_mask", print_addr }, 95 { SADB_X_EXT_PROTOCOL, "protocol", print_proto }, 96 { SADB_X_EXT_FLOW_TYPE, "flow_type", print_flow }, 97 { SADB_X_EXT_SRC_FLOW, "src_flow", print_addr }, 98 { SADB_X_EXT_DST_FLOW, "dst_flow", print_addr }, 99 { SADB_X_EXT_SA2, "sa2", print_sa }, 100 { SADB_X_EXT_DST2, "dst2", print_addr }, 101 { SADB_X_EXT_POLICY, "policy", print_policy }, 102 { SADB_X_EXT_LOCAL_AUTH, "local_auth", print_auth }, 103 { SADB_X_EXT_SUPPORTED_COMP, "supported_comp", print_supp }, 104 { SADB_X_EXT_REMOTE_AUTH, "remote_auth", print_auth }, 105 { SADB_X_EXT_LOCAL_CREDENTIALS, "local_cred", print_cred }, 106 { SADB_X_EXT_REMOTE_CREDENTIALS,"remote_cred", print_cred }, 107 { SADB_X_EXT_UDPENCAP, "udpencap", print_udpenc }, 108 { SADB_X_EXT_LIFETIME_LASTUSE, "lifetime_lastuse", print_life }, 109 { SADB_X_EXT_TAG, "tag", print_tag }, 110 { SADB_X_EXT_TAP, "tap", print_tap }, 111 { 0, NULL, NULL } 112 }; 113 114 struct idname msg_types[] = { 115 { SADB_ACQUIRE, "sadb_acquire", NULL }, 116 { SADB_ADD, "sadb_add", NULL }, 117 { SADB_DELETE, "sadb_delete", NULL }, 118 { SADB_DUMP, "sadb_dump", NULL }, 119 { SADB_EXPIRE, "sadb_expire", NULL }, 120 { SADB_FLUSH, "sadb_flush", NULL }, 121 { SADB_GET, "sadb_get", NULL }, 122 { SADB_GETSPI, "sadb_getspi", NULL }, 123 { SADB_REGISTER, "sadb_register", NULL }, 124 { SADB_UPDATE, "sadb_update", NULL }, 125 { SADB_X_ADDFLOW, "sadb_addflow", NULL }, 126 { SADB_X_ASKPOLICY, "sadb_askpolicy", NULL }, 127 { SADB_X_DELFLOW, "sadb_delflow", NULL }, 128 { SADB_X_GRPSPIS, "sadb_grpspis", NULL }, 129 { SADB_X_PROMISC, "sadb_promisc", NULL }, 130 { 0, NULL, NULL }, 131 }; 132 133 struct idname sa_types[] = { 134 { SADB_SATYPE_UNSPEC, "unspec", NULL }, 135 { SADB_SATYPE_AH, "ah", NULL }, 136 { SADB_SATYPE_ESP, "esp", NULL }, 137 { SADB_SATYPE_RSVP, "rsvp", NULL }, 138 { SADB_SATYPE_OSPFV2, "ospfv2", NULL }, 139 { SADB_SATYPE_RIPV2, "ripv2", NULL }, 140 { SADB_SATYPE_MIP, "mip", NULL }, 141 { SADB_X_SATYPE_IPIP, "ipip", NULL }, 142 { SADB_X_SATYPE_TCPSIGNATURE, "tcpmd5", NULL }, 143 { SADB_X_SATYPE_IPCOMP, "ipcomp", NULL }, 144 { 0, NULL, NULL } 145 }; 146 147 struct idname auth_types[] = { 148 { SADB_AALG_NONE, "none", NULL }, 149 { SADB_X_AALG_DES, "des", NULL }, 150 { SADB_AALG_MD5HMAC, "hmac-md5", NULL }, 151 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", NULL }, 152 { SADB_AALG_SHA1HMAC, "hmac-sha1", NULL }, 153 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", NULL }, 154 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", NULL }, 155 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", NULL }, 156 { SADB_X_AALG_AES128GMAC, "gmac-aes-128", NULL }, 157 { SADB_X_AALG_AES192GMAC, "gmac-aes-192", NULL }, 158 { SADB_X_AALG_AES256GMAC, "gmac-aes-256", NULL }, 159 { SADB_X_AALG_MD5, "md5", NULL }, 160 { SADB_X_AALG_SHA1, "sha1", NULL }, 161 { 0, NULL, NULL } 162 }; 163 164 struct idname cred_types[] = { 165 { SADB_X_CREDTYPE_X509, "x509-asn1", NULL }, 166 { SADB_X_CREDTYPE_KEYNOTE, "keynote", NULL }, 167 { 0, NULL, NULL } 168 }; 169 170 struct idname enc_types[] = { 171 { SADB_EALG_NONE, "none", NULL }, 172 { SADB_EALG_3DESCBC, "3des-cbc", NULL }, 173 { SADB_EALG_DESCBC, "des-cbc", NULL }, 174 { SADB_X_EALG_3IDEA, "idea3", NULL }, 175 { SADB_X_EALG_AES, "aes", NULL }, 176 { SADB_X_EALG_AESCTR, "aesctr", NULL }, 177 { SADB_X_EALG_AESGCM16, "aes-gcm", NULL }, 178 { SADB_X_EALG_AESGMAC, "aes-gmac", NULL }, 179 { SADB_X_EALG_BLF, "blowfish", NULL }, 180 { SADB_X_EALG_CAST, "cast128", NULL }, 181 { SADB_X_EALG_DES_IV32, "des-iv32", NULL }, 182 { SADB_X_EALG_DES_IV64, "des-iv64", NULL }, 183 { SADB_X_EALG_IDEA, "idea", NULL }, 184 { SADB_EALG_NULL, "null", NULL }, 185 { SADB_X_EALG_RC4, "rc4", NULL }, 186 { SADB_X_EALG_RC5, "rc5", NULL }, 187 { 0, NULL, NULL } 188 }; 189 190 struct idname comp_types[] = { 191 { SADB_X_CALG_NONE, "none", NULL }, 192 { SADB_X_CALG_OUI, "oui", NULL }, 193 { SADB_X_CALG_DEFLATE, "deflate", NULL }, 194 { SADB_X_CALG_LZS, "lzs", NULL }, 195 { 0, NULL, NULL } 196 }; 197 198 struct idname xauth_types[] = { 199 { SADB_X_AUTHTYPE_NONE, "none", NULL }, 200 { SADB_X_AUTHTYPE_PASSPHRASE, "passphrase", NULL }, 201 { SADB_X_AUTHTYPE_RSA, "rsa", NULL }, 202 { 0, NULL, NULL } 203 }; 204 205 struct idname identity_types[] = { 206 { SADB_IDENTTYPE_RESERVED, "reserved", NULL }, 207 { SADB_IDENTTYPE_PREFIX, "prefix", NULL }, 208 { SADB_IDENTTYPE_FQDN, "fqdn", NULL }, 209 { SADB_IDENTTYPE_USERFQDN, "ufqdn", NULL }, 210 { SADB_X_IDENTTYPE_CONNECTION, "x_connection", NULL }, 211 { 0, NULL, NULL } 212 }; 213 214 struct idname flow_types[] = { 215 { SADB_X_FLOW_TYPE_USE, "use", NULL }, 216 { SADB_X_FLOW_TYPE_ACQUIRE, "acquire", NULL }, 217 { SADB_X_FLOW_TYPE_REQUIRE, "require", NULL }, 218 { SADB_X_FLOW_TYPE_BYPASS, "bypass", NULL }, 219 { SADB_X_FLOW_TYPE_DENY, "deny", NULL }, 220 { SADB_X_FLOW_TYPE_DONTACQ, "dontacq", NULL }, 221 { 0, NULL, NULL } 222 }; 223 224 struct idname states[] = { 225 { SADB_SASTATE_LARVAL, "larval", NULL }, 226 { SADB_SASTATE_MATURE, "mature", NULL }, 227 { SADB_SASTATE_DYING, "dying", NULL }, 228 { SADB_SASTATE_DEAD, "dead", NULL }, 229 { 0, NULL, NULL } 230 }; 231 232 static struct idname * 233 lookup(struct idname *tab, u_int8_t id) 234 { 235 struct idname *entry; 236 237 for (entry = tab; entry->name; entry++) 238 if (entry->id == id) 239 return (entry); 240 return (NULL); 241 } 242 243 static char * 244 lookup_name(struct idname *tab, u_int8_t id) 245 { 246 struct idname *entry; 247 248 entry = lookup(tab, id); 249 return (entry ? entry->name : "unknown"); 250 } 251 252 static void 253 print_ext(struct sadb_ext *ext, struct sadb_msg *msg) 254 { 255 struct idname *entry; 256 257 if ((entry = lookup(ext_types, ext->sadb_ext_type)) == NULL) { 258 printf("unknown ext: type %u len %u\n", 259 ext->sadb_ext_type, ext->sadb_ext_len); 260 return; 261 } 262 printf("\t%s: ", entry->name); 263 if (entry->func != NULL) 264 (*entry->func)(ext, msg); 265 else 266 printf("type %u len %u", 267 ext->sadb_ext_type, ext->sadb_ext_len); 268 printf("\n"); 269 } 270 271 static void 272 print_sa(struct sadb_ext *ext, struct sadb_msg *msg) 273 { 274 struct sadb_sa *sa = (struct sadb_sa *)ext; 275 276 if (msg->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) 277 printf("cpi 0x%8.8x comp %s\n", 278 ntohl(sa->sadb_sa_spi), 279 lookup_name(comp_types, sa->sadb_sa_encrypt)); 280 else 281 printf("spi 0x%8.8x auth %s enc %s\n", 282 ntohl(sa->sadb_sa_spi), 283 lookup_name(auth_types, sa->sadb_sa_auth), 284 lookup_name(enc_types, sa->sadb_sa_encrypt)); 285 printf("\t\tstate %s replay %u flags %x", 286 lookup_name(states, sa->sadb_sa_state), 287 sa->sadb_sa_replay, sa->sadb_sa_flags); 288 } 289 290 /* ARGSUSED1 */ 291 static void 292 print_addr(struct sadb_ext *ext, struct sadb_msg *msg) 293 { 294 struct sadb_address *addr = (struct sadb_address *)ext; 295 struct sockaddr *sa; 296 struct sockaddr_in *sin4; 297 struct sockaddr_in6 *sin6; 298 char hbuf[NI_MAXHOST]; 299 300 sa = (struct sockaddr *)(addr + 1); 301 if (sa->sa_family == 0) 302 printf("<any>"); 303 else if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0, 304 NI_NUMERICHOST)) 305 printf("<could not get numeric hostname>"); 306 else 307 printf("%s", hbuf); 308 switch (sa->sa_family) { 309 case AF_INET: 310 sin4 = (struct sockaddr_in *)sa; 311 if (sin4->sin_port) 312 printf(" port %u", ntohs(sin4->sin_port)); 313 break; 314 case AF_INET6: 315 sin6 = (struct sockaddr_in6 *)sa; 316 if (sin6->sin6_port) 317 printf(" port %u", ntohs(sin6->sin6_port)); 318 break; 319 } 320 } 321 322 /* ARGSUSED1 */ 323 static void 324 print_key(struct sadb_ext *ext, struct sadb_msg *msg) 325 { 326 struct sadb_key *key = (struct sadb_key *)ext; 327 u_int8_t *data; 328 int i; 329 330 printf("bits %u: ", key->sadb_key_bits); 331 data = (u_int8_t *)(key + 1); 332 for (i = 0; i < key->sadb_key_bits / 8; i++) { 333 printf("%2.2x", data[i]); 334 data[i] = 0x00; /* clear sensitive data */ 335 } 336 } 337 338 /* ARGSUSED1 */ 339 static void 340 print_life(struct sadb_ext *ext, struct sadb_msg *msg) 341 { 342 struct sadb_lifetime *life = (struct sadb_lifetime *)ext; 343 344 printf("alloc %u bytes %llu add %llu first %llu", 345 life->sadb_lifetime_allocations, 346 life->sadb_lifetime_bytes, 347 life->sadb_lifetime_addtime, 348 life->sadb_lifetime_usetime); 349 } 350 351 static void 352 print_proto(struct sadb_ext *ext, struct sadb_msg *msg) 353 { 354 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 355 356 /* overloaded */ 357 if (msg->sadb_msg_type == SADB_X_GRPSPIS) 358 printf("satype %s flags %x", 359 lookup_name(sa_types, proto->sadb_protocol_proto), 360 proto->sadb_protocol_flags); 361 else 362 printf("proto %u flags %x", 363 proto->sadb_protocol_proto, proto->sadb_protocol_flags); 364 } 365 366 /* ARGSUSED1 */ 367 static void 368 print_flow(struct sadb_ext *ext, struct sadb_msg *msg) 369 { 370 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 371 char *dir = "unknown"; 372 373 switch (proto->sadb_protocol_direction) { 374 case IPSP_DIRECTION_IN: 375 dir = "in"; 376 break; 377 case IPSP_DIRECTION_OUT: 378 dir = "out"; 379 break; 380 } 381 printf("type %s direction %s", 382 lookup_name(flow_types, proto->sadb_protocol_proto), dir); 383 } 384 385 static void 386 print_tag(struct sadb_ext *ext, struct sadb_msg *msg) 387 { 388 struct sadb_x_tag *stag = (struct sadb_x_tag *)ext; 389 char *p; 390 391 p = (char *)(stag + 1); 392 printf("%s", p); 393 } 394 395 static void 396 print_tap(struct sadb_ext *ext, struct sadb_msg *msg) 397 { 398 struct sadb_x_tap *stap = (struct sadb_x_tap *)ext; 399 400 printf("enc%u", stap->sadb_x_tap_unit); 401 } 402 403 static char * 404 alg_by_ext(u_int8_t ext_type, u_int8_t id) 405 { 406 switch (ext_type) { 407 case SADB_EXT_SUPPORTED_ENCRYPT: 408 return lookup_name(enc_types, id); 409 case SADB_EXT_SUPPORTED_AUTH: 410 return lookup_name(auth_types, id); 411 case SADB_X_EXT_SUPPORTED_COMP: 412 return lookup_name(comp_types, id); 413 default: 414 return "unknown"; 415 } 416 } 417 418 static void 419 print_alg(struct sadb_alg *alg, u_int8_t ext_type) 420 { 421 printf("\t\t%s iv %u min %u max %u", 422 alg_by_ext(ext_type, alg->sadb_alg_id), alg->sadb_alg_ivlen, 423 alg->sadb_alg_minbits, alg->sadb_alg_maxbits); 424 } 425 426 /* ARGSUSED1 */ 427 static void 428 print_supp(struct sadb_ext *ext, struct sadb_msg *msg) 429 { 430 struct sadb_supported *supported = (struct sadb_supported *)ext; 431 struct sadb_alg *alg; 432 433 printf("\n"); 434 for (alg = (struct sadb_alg *)(supported + 1); 435 (size_t)((u_int8_t *)alg - (u_int8_t *)ext) < 436 ext->sadb_ext_len * PFKEYV2_CHUNK; 437 alg++) { 438 struct sadb_alg *next = alg + 1; 439 print_alg(alg, ext->sadb_ext_type); 440 if ((size_t)((u_int8_t *)next - (u_int8_t *)ext) < 441 ext->sadb_ext_len * PFKEYV2_CHUNK) 442 printf("\n"); 443 } 444 } 445 446 /* ARGSUSED1 */ 447 static void 448 print_comb(struct sadb_comb *comb, struct sadb_msg *msg) 449 { 450 printf("\t\tauth %s min %u max %u\n" 451 "\t\tenc %s min %u max %u\n" 452 "\t\taddtime hard %llu soft %llu\n" 453 "\t\tusetime hard %llu soft %llu", 454 lookup_name(auth_types, comb->sadb_comb_auth), 455 comb->sadb_comb_auth_minbits, 456 comb->sadb_comb_auth_maxbits, 457 lookup_name(enc_types, comb->sadb_comb_encrypt), 458 comb->sadb_comb_encrypt_minbits, 459 comb->sadb_comb_encrypt_maxbits, 460 comb->sadb_comb_soft_addtime, 461 comb->sadb_comb_hard_addtime, 462 comb->sadb_comb_soft_usetime, 463 comb->sadb_comb_hard_usetime); 464 #if 0 465 comb->sadb_comb_flags, 466 comb->sadb_comb_reserved, 467 comb->sadb_comb_soft_allocations, 468 comb->sadb_comb_hard_allocations, 469 comb->sadb_comb_soft_bytes, 470 comb->sadb_comb_hard_bytes, 471 #endif 472 } 473 474 /* ARGSUSED1 */ 475 static void 476 print_prop(struct sadb_ext *ext, struct sadb_msg *msg) 477 { 478 struct sadb_prop *prop = (struct sadb_prop *)ext; 479 struct sadb_comb *comb; 480 481 printf("replay %u\n", prop->sadb_prop_replay); 482 for (comb = (struct sadb_comb *)(prop + 1); 483 (size_t)((u_int8_t *)comb - (u_int8_t *)ext) < 484 ext->sadb_ext_len * PFKEYV2_CHUNK; 485 comb++) 486 print_comb(comb, msg); 487 } 488 489 /* ARGSUSED1 */ 490 static void 491 print_sens(struct sadb_ext *ext, struct sadb_msg *msg) 492 { 493 struct sadb_sens *sens = (struct sadb_sens *)ext; 494 495 printf("dpd %u sens_level %u integ_level %u", 496 sens->sadb_sens_dpd, 497 sens->sadb_sens_sens_level, 498 sens->sadb_sens_integ_level); 499 } 500 501 /* ARGSUSED1 */ 502 static void 503 print_spir(struct sadb_ext *ext, struct sadb_msg *msg) 504 { 505 struct sadb_spirange *spirange = (struct sadb_spirange *)ext; 506 507 printf("min 0x%8.8x max 0x%8.8x", 508 spirange->sadb_spirange_min, spirange->sadb_spirange_max); 509 } 510 511 /* ARGSUSED1 */ 512 static void 513 print_ident(struct sadb_ext *ext, struct sadb_msg *msg) 514 { 515 struct sadb_ident *ident = (struct sadb_ident *)ext; 516 517 printf("type %s id %llu: %s", 518 lookup_name(identity_types, ident->sadb_ident_type), 519 ident->sadb_ident_id, (char *)(ident + 1)); 520 } 521 522 /* ARGSUSED1 */ 523 static void 524 print_auth(struct sadb_ext *ext, struct sadb_msg *msg) 525 { 526 struct sadb_x_cred *x_cred = (struct sadb_x_cred *)ext; 527 528 printf("type %s", 529 lookup_name(xauth_types, x_cred->sadb_x_cred_type)); 530 } 531 532 /* ARGSUSED1 */ 533 static void 534 print_cred(struct sadb_ext *ext, struct sadb_msg *msg) 535 { 536 struct sadb_x_cred *x_cred = (struct sadb_x_cred *)ext; 537 printf("type %s", 538 lookup_name(cred_types, x_cred->sadb_x_cred_type)); 539 } 540 541 /* ARGSUSED1 */ 542 static void 543 print_policy(struct sadb_ext *ext, struct sadb_msg *msg) 544 { 545 struct sadb_x_policy *x_policy = (struct sadb_x_policy *)ext; 546 547 printf("seq %u", x_policy->sadb_x_policy_seq); 548 } 549 550 /* ARGSUSED1 */ 551 static void 552 print_udpenc(struct sadb_ext *ext, struct sadb_msg *msg) 553 { 554 struct sadb_x_udpencap *x_udpencap = (struct sadb_x_udpencap *)ext; 555 556 printf("udpencap port %u", ntohs(x_udpencap->sadb_x_udpencap_port)); 557 } 558 559 static void 560 setup_extensions(struct sadb_msg *msg) 561 { 562 struct sadb_ext *ext; 563 564 bzero(extensions, sizeof(extensions)); 565 if (msg->sadb_msg_len == 0) 566 return; 567 for (ext = (struct sadb_ext *)(msg + 1); 568 (size_t)((u_int8_t *)ext - (u_int8_t *)msg) < 569 msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0; 570 ext = (struct sadb_ext *)((u_int8_t *)ext + 571 ext->sadb_ext_len * PFKEYV2_CHUNK)) 572 extensions[ext->sadb_ext_type] = ext; 573 } 574 575 static void 576 parse_addr(struct sadb_ext *ext, struct ipsec_addr_wrap *ipa) 577 { 578 struct sadb_address *addr = (struct sadb_address *)ext; 579 struct sockaddr *sa; 580 581 if (addr == NULL) 582 return; 583 sa = (struct sockaddr *)(addr + 1); 584 switch (sa->sa_family) { 585 case AF_INET: 586 ipa->address.v4 = ((struct sockaddr_in *)sa)->sin_addr; 587 set_ipmask(ipa, 32); 588 break; 589 case AF_INET6: 590 ipa->address.v6 = ((struct sockaddr_in6 *)sa)->sin6_addr; 591 set_ipmask(ipa, 128); 592 break; 593 } 594 ipa->af = sa->sa_family; 595 ipa->next = NULL; 596 ipa->tail = ipa; 597 } 598 599 static void 600 parse_key(struct sadb_ext *ext, struct ipsec_key *ikey) 601 { 602 struct sadb_key *key = (struct sadb_key *)ext; 603 u_int8_t *data; 604 605 if (key == NULL) 606 return; 607 data = (u_int8_t *)(key + 1); 608 ikey->data = data; 609 ikey->len = key->sadb_key_bits / 8; 610 } 611 612 u_int32_t 613 pfkey_get_spi(struct sadb_msg *msg) 614 { 615 struct sadb_sa *sa; 616 617 setup_extensions(msg); 618 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 619 return (ntohl(sa->sadb_sa_spi)); 620 } 621 622 /* opposite of pfkey_sa() */ 623 void 624 pfkey_print_sa(struct sadb_msg *msg, int opts) 625 { 626 int i; 627 struct ipsec_rule r; 628 struct ipsec_key enckey, authkey; 629 struct ipsec_transforms xfs; 630 struct ipsec_addr_wrap src, dst; 631 struct sadb_sa *sa; 632 633 setup_extensions(msg); 634 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 635 bzero(&r, sizeof r); 636 r.type |= RULE_SA; 637 r.tmode = (msg->sadb_msg_satype != SADB_X_SATYPE_TCPSIGNATURE) && 638 (sa->sadb_sa_flags & SADB_X_SAFLAGS_TUNNEL) ? 639 IPSEC_TUNNEL : IPSEC_TRANSPORT; 640 r.spi = ntohl(sa->sadb_sa_spi); 641 642 switch (msg->sadb_msg_satype) { 643 case SADB_SATYPE_AH: 644 r.satype = IPSEC_AH; 645 break; 646 case SADB_SATYPE_ESP: 647 r.satype = IPSEC_ESP; 648 break; 649 case SADB_X_SATYPE_IPCOMP: 650 r.satype = IPSEC_IPCOMP; 651 break; 652 case SADB_X_SATYPE_TCPSIGNATURE: 653 r.satype = IPSEC_TCPMD5; 654 break; 655 case SADB_X_SATYPE_IPIP: 656 r.satype = IPSEC_IPIP; 657 break; 658 default: 659 return; 660 } 661 bzero(&dst, sizeof dst); 662 bzero(&src, sizeof src); 663 parse_addr(extensions[SADB_EXT_ADDRESS_SRC], &src); 664 parse_addr(extensions[SADB_EXT_ADDRESS_DST], &dst); 665 r.src = &src; 666 r.dst = &dst; 667 if (r.satype == IPSEC_IPCOMP) { 668 if (sa->sadb_sa_encrypt) { 669 bzero(&xfs, sizeof xfs); 670 r.xfs = &xfs; 671 switch (sa->sadb_sa_encrypt) { 672 case SADB_X_CALG_DEFLATE: 673 xfs.encxf = &compxfs[COMPXF_DEFLATE]; 674 break; 675 case SADB_X_CALG_LZS: 676 xfs.encxf = &compxfs[COMPXF_LZS]; 677 break; 678 } 679 } 680 } else if (r.satype == IPSEC_TCPMD5) { 681 bzero(&authkey, sizeof authkey); 682 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 683 r.authkey = &authkey; 684 } else if (sa->sadb_sa_encrypt || sa->sadb_sa_auth) { 685 bzero(&xfs, sizeof xfs); 686 r.xfs = &xfs; 687 if (sa->sadb_sa_encrypt) { 688 bzero(&enckey, sizeof enckey); 689 parse_key(extensions[SADB_EXT_KEY_ENCRYPT], &enckey); 690 r.enckey = &enckey; 691 692 switch (sa->sadb_sa_encrypt) { 693 case SADB_EALG_3DESCBC: 694 xfs.encxf = &encxfs[ENCXF_3DES_CBC]; 695 break; 696 case SADB_EALG_DESCBC: 697 xfs.encxf = &encxfs[ENCXF_DES_CBC]; 698 break; 699 case SADB_X_EALG_AES: 700 switch (r.enckey->len) { 701 case 192/8: 702 xfs.encxf = &encxfs[ENCXF_AES_192]; 703 break; 704 case 256/8: 705 xfs.encxf = &encxfs[ENCXF_AES_256]; 706 break; 707 default: 708 xfs.encxf = &encxfs[ENCXF_AES]; 709 break; 710 } 711 break; 712 case SADB_X_EALG_AESCTR: 713 xfs.encxf = &encxfs[ENCXF_AESCTR]; 714 break; 715 case SADB_X_EALG_AESGCM16: 716 switch (r.enckey->len) { 717 case 28: 718 xfs.encxf = &encxfs[ENCXF_AES_192_GCM]; 719 break; 720 case 36: 721 xfs.encxf = &encxfs[ENCXF_AES_256_GCM]; 722 break; 723 default: 724 xfs.encxf = &encxfs[ENCXF_AES_128_GCM]; 725 break; 726 } 727 break; 728 case SADB_X_EALG_AESGMAC: 729 switch (r.enckey->len) { 730 case 28: 731 xfs.encxf = &encxfs[ENCXF_AES_192_GMAC]; 732 break; 733 case 36: 734 xfs.encxf = &encxfs[ENCXF_AES_256_GMAC]; 735 break; 736 default: 737 xfs.encxf = &encxfs[ENCXF_AES_128_GMAC]; 738 break; 739 } 740 break; 741 case SADB_X_EALG_BLF: 742 xfs.encxf = &encxfs[ENCXF_BLOWFISH]; 743 break; 744 case SADB_X_EALG_CAST: 745 xfs.encxf = &encxfs[ENCXF_CAST128]; 746 break; 747 case SADB_EALG_NULL: 748 xfs.encxf = &encxfs[ENCXF_NULL]; 749 break; 750 } 751 } 752 if (sa->sadb_sa_auth) { 753 bzero(&authkey, sizeof authkey); 754 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 755 r.authkey = &authkey; 756 757 switch (sa->sadb_sa_auth) { 758 case SADB_AALG_MD5HMAC: 759 xfs.authxf = &authxfs[AUTHXF_HMAC_MD5]; 760 break; 761 case SADB_X_AALG_RIPEMD160HMAC: 762 xfs.authxf = &authxfs[AUTHXF_HMAC_RIPEMD160]; 763 break; 764 case SADB_AALG_SHA1HMAC: 765 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA1]; 766 break; 767 case SADB_X_AALG_SHA2_256: 768 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_256]; 769 break; 770 case SADB_X_AALG_SHA2_384: 771 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_384]; 772 break; 773 case SADB_X_AALG_SHA2_512: 774 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_512]; 775 break; 776 } 777 } 778 } 779 if (!(opts & IPSECCTL_OPT_SHOWKEY)) { 780 bzero(&enckey, sizeof enckey); 781 bzero(&authkey, sizeof authkey); 782 extensions[SADB_EXT_KEY_AUTH] = NULL; 783 extensions[SADB_EXT_KEY_ENCRYPT] = NULL; 784 } 785 ipsecctl_print_rule(&r, opts); 786 787 if (opts & IPSECCTL_OPT_VERBOSE) { 788 for (i = 0; i <= SADB_EXT_MAX; i++) 789 if (extensions[i]) 790 print_ext(extensions[i], msg); 791 } 792 fflush(stdout); 793 } 794 795 /* ARGSUSED1 */ 796 void 797 pfkey_monitor_sa(struct sadb_msg *msg, int opts) 798 { 799 int i; 800 801 setup_extensions(msg); 802 803 printf("%s: satype %s vers %u len %u seq %u pid %u\n", 804 lookup_name(msg_types, msg->sadb_msg_type), 805 lookup_name(sa_types, msg->sadb_msg_satype), 806 msg->sadb_msg_version, msg->sadb_msg_len, 807 msg->sadb_msg_seq, 808 msg->sadb_msg_pid); 809 if (msg->sadb_msg_errno) 810 printf("\terrno %u: %s\n", msg->sadb_msg_errno, 811 strerror(msg->sadb_msg_errno)); 812 for (i = 0; i <= SADB_EXT_MAX; i++) 813 if (extensions[i]) 814 print_ext(extensions[i], msg); 815 fflush(stdout); 816 } 817 818 void 819 pfkey_print_raw(u_int8_t *data, ssize_t len) 820 { 821 int i; 822 const u_int8_t *sp = (const u_int8_t *)data; 823 824 printf("RAW PFKEYV2 MESSAGE:\n"); 825 for (i = 0; i < len; i++) { 826 if ((i % 8 == 0) && (i != 0)) 827 printf("\n"); 828 printf("%02x ", *sp); 829 sp++; 830 } 831 printf("\n"); 832 } 833