1 /* $OpenBSD: pfkdump.c,v 1.49 2019/07/03 03:24:02 deraadt 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 27 #include <sys/socket.h> 28 #include <sys/time.h> 29 #include <sys/sysctl.h> 30 #include <sys/queue.h> 31 32 #include <net/pfkeyv2.h> 33 #include <netinet/ip_ipsp.h> 34 #include <netdb.h> 35 #include <string.h> 36 #include <unistd.h> 37 #include <stdlib.h> 38 #include <stdio.h> 39 #include <err.h> 40 #include <errno.h> 41 42 #include "ipsecctl.h" 43 #include "pfkey.h" 44 45 static void print_proto(struct sadb_ext *, struct sadb_msg *, int); 46 static void print_flow(struct sadb_ext *, struct sadb_msg *, int); 47 static void print_supp(struct sadb_ext *, struct sadb_msg *, int); 48 static void print_prop(struct sadb_ext *, struct sadb_msg *, int); 49 static void print_sens(struct sadb_ext *, struct sadb_msg *, int); 50 static void print_spir(struct sadb_ext *, struct sadb_msg *, int); 51 static void print_policy(struct sadb_ext *, struct sadb_msg *, int); 52 static void print_sa(struct sadb_ext *, struct sadb_msg *, int); 53 static void print_addr(struct sadb_ext *, struct sadb_msg *, int); 54 static void print_key(struct sadb_ext *, struct sadb_msg *, int); 55 static void print_life(struct sadb_ext *, struct sadb_msg *, int); 56 static void print_ident(struct sadb_ext *, struct sadb_msg *, int); 57 static void print_udpenc(struct sadb_ext *, struct sadb_msg *, int); 58 static void print_tag(struct sadb_ext *, struct sadb_msg *, int); 59 static void print_tap(struct sadb_ext *, struct sadb_msg *, int); 60 static void print_satype(struct sadb_ext *, struct sadb_msg *, int); 61 static void print_counter(struct sadb_ext *, struct sadb_msg *, int); 62 63 static struct idname *lookup(struct idname *, u_int32_t); 64 static char *lookup_name(struct idname *, u_int32_t); 65 static void print_ext(struct sadb_ext *, struct sadb_msg *, int); 66 67 void pfkey_print_raw(u_int8_t *, ssize_t); 68 static char *print_flags(uint32_t); 69 70 struct sadb_ext *extensions[SADB_EXT_MAX + 1]; 71 72 struct idname { 73 u_int32_t id; 74 char *name; 75 void (*func)(struct sadb_ext *, struct sadb_msg *, int); 76 }; 77 78 struct idname ext_types[] = { 79 { SADB_EXT_RESERVED, "reserved", NULL }, 80 { SADB_EXT_SA, "sa", print_sa }, 81 { SADB_EXT_LIFETIME_CURRENT, "lifetime_cur", print_life }, 82 { SADB_EXT_LIFETIME_HARD, "lifetime_hard", print_life }, 83 { SADB_EXT_LIFETIME_SOFT, "lifetime_soft", print_life }, 84 { SADB_EXT_ADDRESS_SRC, "address_src", print_addr }, 85 { SADB_EXT_ADDRESS_DST, "address_dst", print_addr }, 86 { SADB_EXT_ADDRESS_PROXY, "address_proxy", print_addr }, 87 { SADB_EXT_KEY_AUTH, "key_auth", print_key }, 88 { SADB_EXT_KEY_ENCRYPT, "key_encrypt", print_key }, 89 { SADB_EXT_IDENTITY_SRC, "identity_src", print_ident }, 90 { SADB_EXT_IDENTITY_DST, "identity_dst", print_ident }, 91 { SADB_EXT_SENSITIVITY, "sensitivity", print_sens }, 92 { SADB_EXT_PROPOSAL, "proposal", print_prop }, 93 { SADB_EXT_SUPPORTED_AUTH, "supported_auth", print_supp }, 94 { SADB_EXT_SUPPORTED_ENCRYPT, "supported_encrypt", print_supp }, 95 { SADB_EXT_SPIRANGE, "spirange", print_spir }, 96 { SADB_X_EXT_SRC_MASK, "src_mask", print_addr }, 97 { SADB_X_EXT_DST_MASK, "dst_mask", print_addr }, 98 { SADB_X_EXT_PROTOCOL, "protocol", print_proto }, 99 { SADB_X_EXT_FLOW_TYPE, "flow_type", print_flow }, 100 { SADB_X_EXT_SRC_FLOW, "src_flow", print_addr }, 101 { SADB_X_EXT_DST_FLOW, "dst_flow", print_addr }, 102 { SADB_X_EXT_SA2, "sa2", print_sa }, 103 { SADB_X_EXT_DST2, "dst2", print_addr }, 104 { SADB_X_EXT_POLICY, "policy", print_policy }, 105 { SADB_X_EXT_SUPPORTED_COMP, "supported_comp", print_supp }, 106 { SADB_X_EXT_UDPENCAP, "udpencap", print_udpenc }, 107 { SADB_X_EXT_LIFETIME_LASTUSE, "lifetime_lastuse", print_life }, 108 { SADB_X_EXT_TAG, "tag", print_tag }, 109 { SADB_X_EXT_TAP, "tap", print_tap }, 110 { SADB_X_EXT_SATYPE2, "satype2", print_satype }, 111 { SADB_X_EXT_COUNTER, "counter", print_counter }, 112 { 0, NULL, NULL } 113 }; 114 115 struct idname msg_types[] = { 116 { SADB_ACQUIRE, "sadb_acquire", NULL }, 117 { SADB_ADD, "sadb_add", NULL }, 118 { SADB_DELETE, "sadb_delete", NULL }, 119 { SADB_DUMP, "sadb_dump", NULL }, 120 { SADB_EXPIRE, "sadb_expire", NULL }, 121 { SADB_FLUSH, "sadb_flush", NULL }, 122 { SADB_GET, "sadb_get", NULL }, 123 { SADB_GETSPI, "sadb_getspi", NULL }, 124 { SADB_REGISTER, "sadb_register", NULL }, 125 { SADB_UPDATE, "sadb_update", NULL }, 126 { SADB_X_ADDFLOW, "sadb_addflow", NULL }, 127 { SADB_X_ASKPOLICY, "sadb_askpolicy", NULL }, 128 { SADB_X_DELFLOW, "sadb_delflow", NULL }, 129 { SADB_X_GRPSPIS, "sadb_grpspis", NULL }, 130 { SADB_X_PROMISC, "sadb_promisc", NULL }, 131 { 0, NULL, NULL }, 132 }; 133 134 struct idname sa_types[] = { 135 { SADB_SATYPE_UNSPEC, "unspec", NULL }, 136 { SADB_SATYPE_AH, "ah", NULL }, 137 { SADB_SATYPE_ESP, "esp", NULL }, 138 { SADB_SATYPE_RSVP, "rsvp", NULL }, 139 { SADB_SATYPE_OSPFV2, "ospfv2", NULL }, 140 { SADB_SATYPE_RIPV2, "ripv2", NULL }, 141 { SADB_SATYPE_MIP, "mip", NULL }, 142 { SADB_X_SATYPE_IPIP, "ipip", NULL }, 143 { SADB_X_SATYPE_TCPSIGNATURE, "tcpmd5", NULL }, 144 { SADB_X_SATYPE_IPCOMP, "ipcomp", NULL }, 145 { 0, NULL, NULL } 146 }; 147 148 struct idname auth_types[] = { 149 { SADB_AALG_NONE, "none", 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_CHACHA20POLY1305, "chacha20-poly1305", NULL }, 160 { 0, NULL, NULL } 161 }; 162 163 struct idname enc_types[] = { 164 { SADB_EALG_NONE, "none", NULL }, 165 { SADB_EALG_3DESCBC, "3des-cbc", NULL }, 166 { SADB_X_EALG_AES, "aes", NULL }, 167 { SADB_X_EALG_AESCTR, "aesctr", NULL }, 168 { SADB_X_EALG_AESGCM16, "aes-gcm", NULL }, 169 { SADB_X_EALG_AESGMAC, "aes-gmac", NULL }, 170 { SADB_X_EALG_BLF, "blowfish", NULL }, 171 { SADB_X_EALG_CAST, "cast128", NULL }, 172 { SADB_EALG_NULL, "null", NULL }, 173 { SADB_X_EALG_CHACHA20POLY1305, "chacha20-poly1305", NULL }, 174 { 0, NULL, NULL } 175 }; 176 177 struct idname comp_types[] = { 178 { SADB_X_CALG_NONE, "none", NULL }, 179 { SADB_X_CALG_OUI, "oui", NULL }, 180 { SADB_X_CALG_DEFLATE, "deflate", NULL }, 181 { SADB_X_CALG_LZS, "lzs", NULL }, 182 { 0, NULL, NULL } 183 }; 184 185 struct idname flag_types[] = { 186 { SADB_SAFLAGS_PFS, "pfs", NULL }, 187 { SADB_X_SAFLAGS_TUNNEL, "tunnel", NULL }, 188 { SADB_X_SAFLAGS_CHAINDEL, "chaindel", NULL }, 189 { SADB_X_SAFLAGS_UDPENCAP, "udpencap", NULL }, 190 { SADB_X_SAFLAGS_ESN, "esn", NULL }, 191 { 0, NULL, NULL } 192 }; 193 194 struct idname identity_types[] = { 195 { SADB_IDENTTYPE_RESERVED, "reserved", NULL }, 196 { SADB_IDENTTYPE_PREFIX, "prefix", NULL }, 197 { SADB_IDENTTYPE_FQDN, "fqdn", NULL }, 198 { SADB_IDENTTYPE_USERFQDN, "ufqdn", NULL }, 199 { 0, NULL, NULL } 200 }; 201 202 struct idname flow_types[] = { 203 { SADB_X_FLOW_TYPE_USE, "use", NULL }, 204 { SADB_X_FLOW_TYPE_ACQUIRE, "acquire", NULL }, 205 { SADB_X_FLOW_TYPE_REQUIRE, "require", NULL }, 206 { SADB_X_FLOW_TYPE_BYPASS, "bypass", NULL }, 207 { SADB_X_FLOW_TYPE_DENY, "deny", NULL }, 208 { SADB_X_FLOW_TYPE_DONTACQ, "dontacq", NULL }, 209 { 0, NULL, NULL } 210 }; 211 212 struct idname states[] = { 213 { SADB_SASTATE_LARVAL, "larval", NULL }, 214 { SADB_SASTATE_MATURE, "mature", NULL }, 215 { SADB_SASTATE_DYING, "dying", NULL }, 216 { SADB_SASTATE_DEAD, "dead", NULL }, 217 { 0, NULL, NULL } 218 }; 219 220 static struct idname * 221 lookup(struct idname *tab, u_int32_t id) 222 { 223 struct idname *entry; 224 225 for (entry = tab; entry->name; entry++) 226 if (entry->id == id) 227 return (entry); 228 return (NULL); 229 } 230 231 static char * 232 lookup_name(struct idname *tab, u_int32_t id) 233 { 234 struct idname *entry; 235 236 entry = lookup(tab, id); 237 return (entry ? entry->name : "unknown"); 238 } 239 240 static void 241 print_ext(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 242 { 243 struct idname *entry; 244 245 if ((entry = lookup(ext_types, ext->sadb_ext_type)) == NULL) { 246 printf("unknown ext: type %u len %u\n", 247 ext->sadb_ext_type, ext->sadb_ext_len); 248 return; 249 } 250 printf("\t%s: ", entry->name); 251 if (entry->func != NULL) 252 (*entry->func)(ext, msg, opts); 253 else 254 printf("type %u len %u", 255 ext->sadb_ext_type, ext->sadb_ext_len); 256 printf("\n"); 257 } 258 259 static char * 260 print_flags(uint32_t flags) 261 { 262 static char fstr[80]; 263 struct idname *entry; 264 int len; 265 int i, comma = 0, n; 266 267 len = snprintf(fstr, sizeof(fstr), "%#x<", flags); 268 if (len < 0 || len >= sizeof(fstr)) 269 return (NULL); 270 for (i = 0; i < 32; i++) { 271 if ((flags & (1 << i)) == 0 || 272 (entry = lookup(flag_types, 1 << i)) == NULL) 273 continue; 274 n = snprintf(fstr + len, sizeof(fstr) - len - 1, 275 comma ? ",%s" : "%s", entry->name); 276 if (n < 0 || n >= sizeof(fstr) - len - 1) 277 return (NULL); 278 len += n; 279 comma = 1; 280 } 281 strlcat(fstr, ">", sizeof(fstr)); 282 283 return (fstr); 284 } 285 286 static void 287 print_sa(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 288 { 289 struct sadb_sa *sa = (struct sadb_sa *)ext; 290 291 if (msg->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) 292 printf("cpi 0x%8.8x comp %s\n", 293 ntohl(sa->sadb_sa_spi), 294 lookup_name(comp_types, sa->sadb_sa_encrypt)); 295 else 296 printf("spi 0x%8.8x auth %s enc %s\n", 297 ntohl(sa->sadb_sa_spi), 298 lookup_name(auth_types, sa->sadb_sa_auth), 299 lookup_name(enc_types, sa->sadb_sa_encrypt)); 300 printf("\t\tstate %s replay %u flags %s", 301 lookup_name(states, sa->sadb_sa_state), 302 sa->sadb_sa_replay, print_flags(sa->sadb_sa_flags)); 303 } 304 305 /* ARGSUSED1 */ 306 static void 307 print_addr(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 308 { 309 struct sadb_address *addr = (struct sadb_address *)ext; 310 struct sockaddr *sa; 311 struct sockaddr_in *sin4; 312 struct sockaddr_in6 *sin6; 313 char hbuf[NI_MAXHOST]; 314 315 sa = (struct sockaddr *)(addr + 1); 316 if (sa->sa_family == 0) 317 printf("<any>"); 318 else if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0, 319 NI_NUMERICHOST)) 320 printf("<could not get numeric hostname>"); 321 else 322 printf("%s", hbuf); 323 switch (sa->sa_family) { 324 case AF_INET: 325 sin4 = (struct sockaddr_in *)sa; 326 if (sin4->sin_port) 327 printf(" port %u", ntohs(sin4->sin_port)); 328 break; 329 case AF_INET6: 330 sin6 = (struct sockaddr_in6 *)sa; 331 if (sin6->sin6_port) 332 printf(" port %u", ntohs(sin6->sin6_port)); 333 break; 334 } 335 } 336 337 /* ARGSUSED1 */ 338 static void 339 print_key(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 340 { 341 struct sadb_key *key = (struct sadb_key *)ext; 342 u_int8_t *data; 343 int i; 344 345 printf("bits %u: ", key->sadb_key_bits); 346 data = (u_int8_t *)(key + 1); 347 for (i = 0; i < key->sadb_key_bits / 8; i++) { 348 printf("%2.2x", data[i]); 349 data[i] = 0x00; /* clear sensitive data */ 350 } 351 } 352 353 /* ARGSUSED1 */ 354 static void 355 print_life(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 356 { 357 struct sadb_lifetime *life = (struct sadb_lifetime *)ext; 358 359 printf("alloc %u bytes %llu add %llu first %llu", 360 life->sadb_lifetime_allocations, 361 life->sadb_lifetime_bytes, 362 life->sadb_lifetime_addtime, 363 life->sadb_lifetime_usetime); 364 } 365 366 static void 367 print_proto(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 368 { 369 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 370 371 /* overloaded */ 372 if (msg->sadb_msg_type == SADB_X_GRPSPIS) 373 printf("satype %s flags %x", 374 lookup_name(sa_types, proto->sadb_protocol_proto), 375 proto->sadb_protocol_flags); 376 else 377 printf("proto %u flags %x", 378 proto->sadb_protocol_proto, proto->sadb_protocol_flags); 379 } 380 381 /* ARGSUSED1 */ 382 static void 383 print_flow(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 384 { 385 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 386 char *dir = "unknown"; 387 388 switch (proto->sadb_protocol_direction) { 389 case IPSP_DIRECTION_IN: 390 dir = "in"; 391 break; 392 case IPSP_DIRECTION_OUT: 393 dir = "out"; 394 break; 395 } 396 printf("type %s direction %s", 397 lookup_name(flow_types, proto->sadb_protocol_proto), dir); 398 } 399 400 static void 401 print_tag(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 402 { 403 struct sadb_x_tag *stag = (struct sadb_x_tag *)ext; 404 char *p; 405 406 p = (char *)(stag + 1); 407 printf("%s", p); 408 } 409 410 static void 411 print_tap(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 412 { 413 struct sadb_x_tap *stap = (struct sadb_x_tap *)ext; 414 415 printf("enc%u", stap->sadb_x_tap_unit); 416 } 417 418 static void 419 print_satype(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 420 { 421 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 422 423 printf("type %s", lookup_name(sa_types, proto->sadb_protocol_proto)); 424 } 425 426 static void 427 print_counter(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 428 { 429 struct sadb_x_counter *scnt = (struct sadb_x_counter *)ext; 430 431 printf("\n"); 432 433 #define plural(n) ((n) != 1 ? "s" : "") 434 #define p(f, m) if (scnt->f || opts & IPSECCTL_OPT_VERBOSE2) \ 435 printf(m, scnt->f, plural(scnt->f)) 436 p(sadb_x_counter_ipackets, "\t\t%llu input packet%s\n"); 437 p(sadb_x_counter_opackets, "\t\t%llu output packet%s\n"); 438 p(sadb_x_counter_ibytes, "\t\t%llu input byte%s\n"); 439 p(sadb_x_counter_obytes, "\t\t%llu output byte%s\n"); 440 p(sadb_x_counter_idecompbytes, "\t\t%llu input byte%s, decompressed\n"); 441 p(sadb_x_counter_ouncompbytes,"\t\t%llu output byte%s, uncompressed\n"); 442 p(sadb_x_counter_idrops, "\t\t%llu packet%s dropped on input\n"); 443 p(sadb_x_counter_odrops, "\t\t%llu packet%s dropped on output\n"); 444 #undef p 445 #undef plural 446 } 447 448 static char * 449 alg_by_ext(u_int8_t ext_type, u_int8_t id) 450 { 451 switch (ext_type) { 452 case SADB_EXT_SUPPORTED_ENCRYPT: 453 return lookup_name(enc_types, id); 454 case SADB_EXT_SUPPORTED_AUTH: 455 return lookup_name(auth_types, id); 456 case SADB_X_EXT_SUPPORTED_COMP: 457 return lookup_name(comp_types, id); 458 default: 459 return "unknown"; 460 } 461 } 462 463 static void 464 print_alg(struct sadb_alg *alg, u_int8_t ext_type) 465 { 466 printf("\t\t%s iv %u min %u max %u", 467 alg_by_ext(ext_type, alg->sadb_alg_id), alg->sadb_alg_ivlen, 468 alg->sadb_alg_minbits, alg->sadb_alg_maxbits); 469 } 470 471 /* ARGSUSED1 */ 472 static void 473 print_supp(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 474 { 475 struct sadb_supported *supported = (struct sadb_supported *)ext; 476 struct sadb_alg *alg; 477 478 printf("\n"); 479 for (alg = (struct sadb_alg *)(supported + 1); 480 (size_t)((u_int8_t *)alg - (u_int8_t *)ext) < 481 ext->sadb_ext_len * PFKEYV2_CHUNK; 482 alg++) { 483 struct sadb_alg *next = alg + 1; 484 print_alg(alg, ext->sadb_ext_type); 485 if ((size_t)((u_int8_t *)next - (u_int8_t *)ext) < 486 ext->sadb_ext_len * PFKEYV2_CHUNK) 487 printf("\n"); 488 } 489 } 490 491 /* ARGSUSED1 */ 492 static void 493 print_comb(struct sadb_comb *comb, struct sadb_msg *msg, int opts) 494 { 495 printf("\t\tauth %s min %u max %u\n" 496 "\t\tenc %s min %u max %u\n" 497 "\t\taddtime hard %llu soft %llu\n" 498 "\t\tusetime hard %llu soft %llu", 499 lookup_name(auth_types, comb->sadb_comb_auth), 500 comb->sadb_comb_auth_minbits, 501 comb->sadb_comb_auth_maxbits, 502 lookup_name(enc_types, comb->sadb_comb_encrypt), 503 comb->sadb_comb_encrypt_minbits, 504 comb->sadb_comb_encrypt_maxbits, 505 comb->sadb_comb_soft_addtime, 506 comb->sadb_comb_hard_addtime, 507 comb->sadb_comb_soft_usetime, 508 comb->sadb_comb_hard_usetime); 509 #if 0 510 comb->sadb_comb_flags, 511 comb->sadb_comb_reserved, 512 comb->sadb_comb_soft_allocations, 513 comb->sadb_comb_hard_allocations, 514 comb->sadb_comb_soft_bytes, 515 comb->sadb_comb_hard_bytes, 516 #endif 517 } 518 519 /* ARGSUSED1 */ 520 static void 521 print_prop(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 522 { 523 struct sadb_prop *prop = (struct sadb_prop *)ext; 524 struct sadb_comb *comb; 525 526 printf("replay %u\n", prop->sadb_prop_replay); 527 for (comb = (struct sadb_comb *)(prop + 1); 528 (size_t)((u_int8_t *)comb - (u_int8_t *)ext) < 529 ext->sadb_ext_len * PFKEYV2_CHUNK; 530 comb++) 531 print_comb(comb, msg, opts); 532 } 533 534 /* ARGSUSED1 */ 535 static void 536 print_sens(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 537 { 538 struct sadb_sens *sens = (struct sadb_sens *)ext; 539 540 printf("dpd %u sens_level %u integ_level %u", 541 sens->sadb_sens_dpd, 542 sens->sadb_sens_sens_level, 543 sens->sadb_sens_integ_level); 544 } 545 546 /* ARGSUSED1 */ 547 static void 548 print_spir(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 549 { 550 struct sadb_spirange *spirange = (struct sadb_spirange *)ext; 551 552 printf("min 0x%8.8x max 0x%8.8x", 553 spirange->sadb_spirange_min, spirange->sadb_spirange_max); 554 } 555 556 /* ARGSUSED1 */ 557 static void 558 print_ident(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 559 { 560 struct sadb_ident *ident = (struct sadb_ident *)ext; 561 562 printf("type %s id %llu: %s", 563 lookup_name(identity_types, ident->sadb_ident_type), 564 ident->sadb_ident_id, (char *)(ident + 1)); 565 } 566 567 /* ARGSUSED1 */ 568 static void 569 print_policy(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 570 { 571 struct sadb_x_policy *x_policy = (struct sadb_x_policy *)ext; 572 573 printf("seq %u", x_policy->sadb_x_policy_seq); 574 } 575 576 /* ARGSUSED1 */ 577 static void 578 print_udpenc(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 579 { 580 struct sadb_x_udpencap *x_udpencap = (struct sadb_x_udpencap *)ext; 581 582 printf("udpencap port %u", ntohs(x_udpencap->sadb_x_udpencap_port)); 583 } 584 585 static void 586 setup_extensions(struct sadb_msg *msg) 587 { 588 struct sadb_ext *ext; 589 590 bzero(extensions, sizeof(extensions)); 591 if (msg->sadb_msg_len == 0) 592 return; 593 for (ext = (struct sadb_ext *)(msg + 1); 594 (size_t)((u_int8_t *)ext - (u_int8_t *)msg) < 595 msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0; 596 ext = (struct sadb_ext *)((u_int8_t *)ext + 597 ext->sadb_ext_len * PFKEYV2_CHUNK)) 598 extensions[ext->sadb_ext_type] = ext; 599 } 600 601 static void 602 parse_addr(struct sadb_ext *ext, struct ipsec_addr_wrap *ipa) 603 { 604 struct sadb_address *addr = (struct sadb_address *)ext; 605 struct sockaddr *sa; 606 607 if (addr == NULL) 608 return; 609 sa = (struct sockaddr *)(addr + 1); 610 switch (sa->sa_family) { 611 case AF_INET: 612 ipa->address.v4 = ((struct sockaddr_in *)sa)->sin_addr; 613 set_ipmask(ipa, 32); 614 break; 615 case AF_INET6: 616 ipa->address.v6 = ((struct sockaddr_in6 *)sa)->sin6_addr; 617 set_ipmask(ipa, 128); 618 break; 619 } 620 ipa->af = sa->sa_family; 621 ipa->next = NULL; 622 ipa->tail = ipa; 623 } 624 625 static void 626 parse_key(struct sadb_ext *ext, struct ipsec_key *ikey) 627 { 628 struct sadb_key *key = (struct sadb_key *)ext; 629 u_int8_t *data; 630 631 if (key == NULL) 632 return; 633 data = (u_int8_t *)(key + 1); 634 ikey->data = data; 635 ikey->len = key->sadb_key_bits / 8; 636 } 637 638 static void 639 parse_satype(struct sadb_ext *ext, u_int8_t *satype) 640 { 641 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 642 643 if (proto == NULL) 644 return; 645 switch (proto->sadb_protocol_proto) { 646 case SADB_SATYPE_ESP: 647 *satype = IPSEC_ESP; 648 break; 649 case SADB_SATYPE_AH: 650 *satype = IPSEC_AH; 651 break; 652 case SADB_X_SATYPE_IPCOMP: 653 *satype = IPSEC_IPCOMP; 654 break; 655 case SADB_X_SATYPE_IPIP: 656 *satype = IPSEC_IPIP; 657 break; 658 default: 659 return; 660 } 661 } 662 663 u_int32_t 664 pfkey_get_spi(struct sadb_msg *msg) 665 { 666 struct sadb_sa *sa; 667 668 setup_extensions(msg); 669 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 670 return (ntohl(sa->sadb_sa_spi)); 671 } 672 673 /* opposite of pfkey_sa() */ 674 void 675 pfkey_print_sa(struct sadb_msg *msg, int opts) 676 { 677 int i; 678 struct ipsec_rule r; 679 struct ipsec_key enckey, authkey; 680 struct ipsec_transforms xfs; 681 struct ipsec_addr_wrap src, dst, dst2; 682 struct sadb_sa *sa, *sa2; 683 684 setup_extensions(msg); 685 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 686 bzero(&r, sizeof r); 687 r.type |= RULE_SA; 688 r.tmode = (msg->sadb_msg_satype != SADB_X_SATYPE_TCPSIGNATURE) && 689 (sa->sadb_sa_flags & SADB_X_SAFLAGS_TUNNEL) ? 690 IPSEC_TUNNEL : IPSEC_TRANSPORT; 691 r.spi = ntohl(sa->sadb_sa_spi); 692 693 switch (msg->sadb_msg_satype) { 694 case SADB_SATYPE_AH: 695 r.satype = IPSEC_AH; 696 break; 697 case SADB_SATYPE_ESP: 698 r.satype = IPSEC_ESP; 699 break; 700 case SADB_X_SATYPE_IPCOMP: 701 r.satype = IPSEC_IPCOMP; 702 break; 703 case SADB_X_SATYPE_TCPSIGNATURE: 704 r.satype = IPSEC_TCPMD5; 705 break; 706 case SADB_X_SATYPE_IPIP: 707 r.satype = IPSEC_IPIP; 708 break; 709 default: 710 return; 711 } 712 bzero(&dst, sizeof dst); 713 bzero(&src, sizeof src); 714 parse_addr(extensions[SADB_EXT_ADDRESS_SRC], &src); 715 parse_addr(extensions[SADB_EXT_ADDRESS_DST], &dst); 716 r.src = &src; 717 r.dst = &dst; 718 if (r.satype == IPSEC_IPCOMP) { 719 if (sa->sadb_sa_encrypt) { 720 bzero(&xfs, sizeof xfs); 721 r.xfs = &xfs; 722 switch (sa->sadb_sa_encrypt) { 723 case SADB_X_CALG_DEFLATE: 724 xfs.compxf = &compxfs[COMPXF_DEFLATE]; 725 break; 726 case SADB_X_CALG_LZS: 727 xfs.compxf = &compxfs[COMPXF_LZS]; 728 break; 729 } 730 } 731 } else if (r.satype == IPSEC_TCPMD5) { 732 bzero(&authkey, sizeof authkey); 733 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 734 r.authkey = &authkey; 735 } else if (sa->sadb_sa_encrypt || sa->sadb_sa_auth) { 736 bzero(&xfs, sizeof xfs); 737 r.xfs = &xfs; 738 if (sa->sadb_sa_encrypt) { 739 bzero(&enckey, sizeof enckey); 740 parse_key(extensions[SADB_EXT_KEY_ENCRYPT], &enckey); 741 r.enckey = &enckey; 742 743 switch (sa->sadb_sa_encrypt) { 744 case SADB_EALG_3DESCBC: 745 xfs.encxf = &encxfs[ENCXF_3DES_CBC]; 746 break; 747 case SADB_X_EALG_AES: 748 switch (r.enckey->len) { 749 case 192/8: 750 xfs.encxf = &encxfs[ENCXF_AES_192]; 751 break; 752 case 256/8: 753 xfs.encxf = &encxfs[ENCXF_AES_256]; 754 break; 755 default: 756 xfs.encxf = &encxfs[ENCXF_AES]; 757 break; 758 } 759 break; 760 case SADB_X_EALG_AESCTR: 761 switch (r.enckey->len) { 762 case 28: 763 xfs.encxf = &encxfs[ENCXF_AES_192_CTR]; 764 break; 765 case 36: 766 xfs.encxf = &encxfs[ENCXF_AES_256_CTR]; 767 break; 768 default: 769 xfs.encxf = &encxfs[ENCXF_AESCTR]; 770 break; 771 } 772 break; 773 case SADB_X_EALG_AESGCM16: 774 switch (r.enckey->len) { 775 case 28: 776 xfs.encxf = &encxfs[ENCXF_AES_192_GCM]; 777 break; 778 case 36: 779 xfs.encxf = &encxfs[ENCXF_AES_256_GCM]; 780 break; 781 default: 782 xfs.encxf = &encxfs[ENCXF_AES_128_GCM]; 783 break; 784 } 785 break; 786 case SADB_X_EALG_AESGMAC: 787 switch (r.enckey->len) { 788 case 28: 789 xfs.encxf = &encxfs[ENCXF_AES_192_GMAC]; 790 break; 791 case 36: 792 xfs.encxf = &encxfs[ENCXF_AES_256_GMAC]; 793 break; 794 default: 795 xfs.encxf = &encxfs[ENCXF_AES_128_GMAC]; 796 break; 797 } 798 break; 799 case SADB_X_EALG_BLF: 800 xfs.encxf = &encxfs[ENCXF_BLOWFISH]; 801 break; 802 case SADB_X_EALG_CAST: 803 xfs.encxf = &encxfs[ENCXF_CAST128]; 804 break; 805 case SADB_X_EALG_CHACHA20POLY1305: 806 xfs.encxf = &encxfs[ENCXF_CHACHA20_POLY1305]; 807 break; 808 case SADB_EALG_NULL: 809 xfs.encxf = &encxfs[ENCXF_NULL]; 810 break; 811 } 812 } 813 if (sa->sadb_sa_auth) { 814 bzero(&authkey, sizeof authkey); 815 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 816 r.authkey = &authkey; 817 818 switch (sa->sadb_sa_auth) { 819 case SADB_AALG_MD5HMAC: 820 xfs.authxf = &authxfs[AUTHXF_HMAC_MD5]; 821 break; 822 case SADB_X_AALG_RIPEMD160HMAC: 823 xfs.authxf = &authxfs[AUTHXF_HMAC_RIPEMD160]; 824 break; 825 case SADB_AALG_SHA1HMAC: 826 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA1]; 827 break; 828 case SADB_X_AALG_SHA2_256: 829 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_256]; 830 break; 831 case SADB_X_AALG_SHA2_384: 832 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_384]; 833 break; 834 case SADB_X_AALG_SHA2_512: 835 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_512]; 836 break; 837 } 838 } 839 } 840 if (!(opts & IPSECCTL_OPT_SHOWKEY)) { 841 bzero(&enckey, sizeof enckey); 842 bzero(&authkey, sizeof authkey); 843 extensions[SADB_EXT_KEY_AUTH] = NULL; 844 extensions[SADB_EXT_KEY_ENCRYPT] = NULL; 845 } 846 if (extensions[SADB_X_EXT_SA2]) { 847 r.type |= RULE_BUNDLE; 848 sa2 = (struct sadb_sa *)extensions[SADB_X_EXT_SA2]; 849 r.spi2 = ntohl(sa2->sadb_sa_spi); 850 parse_addr(extensions[SADB_X_EXT_DST2], &dst2); 851 r.dst2 = &dst2; 852 parse_satype(extensions[SADB_X_EXT_SATYPE2], &r.proto2); 853 r.proto = r.satype; 854 } 855 ipsecctl_print_rule(&r, opts); 856 857 if (opts & IPSECCTL_OPT_VERBOSE) { 858 for (i = 0; i <= SADB_EXT_MAX; i++) 859 if (extensions[i]) 860 print_ext(extensions[i], msg, opts); 861 } 862 fflush(stdout); 863 } 864 865 /* ARGSUSED1 */ 866 void 867 pfkey_monitor_sa(struct sadb_msg *msg, int opts) 868 { 869 int i; 870 871 setup_extensions(msg); 872 873 printf("%s: satype %s vers %u len %u seq %u pid %u\n", 874 lookup_name(msg_types, msg->sadb_msg_type), 875 lookup_name(sa_types, msg->sadb_msg_satype), 876 msg->sadb_msg_version, msg->sadb_msg_len, 877 msg->sadb_msg_seq, 878 msg->sadb_msg_pid); 879 if (msg->sadb_msg_errno) 880 printf("\terrno %u: %s\n", msg->sadb_msg_errno, 881 strerror(msg->sadb_msg_errno)); 882 for (i = 0; i <= SADB_EXT_MAX; i++) 883 if (extensions[i]) 884 print_ext(extensions[i], msg, opts); 885 fflush(stdout); 886 } 887 888 void 889 pfkey_print_raw(u_int8_t *data, ssize_t len) 890 { 891 int i; 892 const u_int8_t *sp = (const u_int8_t *)data; 893 894 printf("RAW PFKEYV2 MESSAGE:\n"); 895 for (i = 0; i < len; i++) { 896 if ((i % 8 == 0) && (i != 0)) 897 printf("\n"); 898 printf("%02x ", *sp); 899 sp++; 900 } 901 printf("\n"); 902 } 903