1 /* $OpenBSD: pfkdump.c,v 1.51 2020/06/01 21:00:51 tobhe 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_rdomain(struct sadb_ext *, struct sadb_msg *, int); 60 static void print_tap(struct sadb_ext *, struct sadb_msg *, int); 61 static void print_satype(struct sadb_ext *, struct sadb_msg *, int); 62 static void print_counter(struct sadb_ext *, struct sadb_msg *, int); 63 64 static struct idname *lookup(struct idname *, u_int32_t); 65 static char *lookup_name(struct idname *, u_int32_t); 66 static void print_ext(struct sadb_ext *, struct sadb_msg *, int); 67 68 void pfkey_print_raw(u_int8_t *, ssize_t); 69 static char *print_flags(uint32_t); 70 71 struct sadb_ext *extensions[SADB_EXT_MAX + 1]; 72 73 struct idname { 74 u_int32_t id; 75 char *name; 76 void (*func)(struct sadb_ext *, struct sadb_msg *, int); 77 }; 78 79 struct idname ext_types[] = { 80 { SADB_EXT_RESERVED, "reserved", NULL }, 81 { SADB_EXT_SA, "sa", print_sa }, 82 { SADB_EXT_LIFETIME_CURRENT, "lifetime_cur", print_life }, 83 { SADB_EXT_LIFETIME_HARD, "lifetime_hard", print_life }, 84 { SADB_EXT_LIFETIME_SOFT, "lifetime_soft", print_life }, 85 { SADB_EXT_ADDRESS_SRC, "address_src", print_addr }, 86 { SADB_EXT_ADDRESS_DST, "address_dst", print_addr }, 87 { SADB_EXT_ADDRESS_PROXY, "address_proxy", print_addr }, 88 { SADB_EXT_KEY_AUTH, "key_auth", print_key }, 89 { SADB_EXT_KEY_ENCRYPT, "key_encrypt", print_key }, 90 { SADB_EXT_IDENTITY_SRC, "identity_src", print_ident }, 91 { SADB_EXT_IDENTITY_DST, "identity_dst", print_ident }, 92 { SADB_EXT_SENSITIVITY, "sensitivity", print_sens }, 93 { SADB_EXT_PROPOSAL, "proposal", print_prop }, 94 { SADB_EXT_SUPPORTED_AUTH, "supported_auth", print_supp }, 95 { SADB_EXT_SUPPORTED_ENCRYPT, "supported_encrypt", print_supp }, 96 { SADB_EXT_SPIRANGE, "spirange", print_spir }, 97 { SADB_X_EXT_SRC_MASK, "src_mask", print_addr }, 98 { SADB_X_EXT_DST_MASK, "dst_mask", print_addr }, 99 { SADB_X_EXT_PROTOCOL, "protocol", print_proto }, 100 { SADB_X_EXT_FLOW_TYPE, "flow_type", print_flow }, 101 { SADB_X_EXT_SRC_FLOW, "src_flow", print_addr }, 102 { SADB_X_EXT_DST_FLOW, "dst_flow", print_addr }, 103 { SADB_X_EXT_SA2, "sa2", print_sa }, 104 { SADB_X_EXT_DST2, "dst2", print_addr }, 105 { SADB_X_EXT_POLICY, "policy", print_policy }, 106 { SADB_X_EXT_SUPPORTED_COMP, "supported_comp", print_supp }, 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_RDOMAIN, "rdomain", print_rdomain }, 111 { SADB_X_EXT_TAP, "tap", print_tap }, 112 { SADB_X_EXT_SATYPE2, "satype2", print_satype }, 113 { SADB_X_EXT_COUNTER, "counter", print_counter }, 114 { 0, NULL, NULL } 115 }; 116 117 struct idname msg_types[] = { 118 { SADB_ACQUIRE, "sadb_acquire", NULL }, 119 { SADB_ADD, "sadb_add", NULL }, 120 { SADB_DELETE, "sadb_delete", NULL }, 121 { SADB_DUMP, "sadb_dump", NULL }, 122 { SADB_EXPIRE, "sadb_expire", NULL }, 123 { SADB_FLUSH, "sadb_flush", NULL }, 124 { SADB_GET, "sadb_get", NULL }, 125 { SADB_GETSPI, "sadb_getspi", NULL }, 126 { SADB_REGISTER, "sadb_register", NULL }, 127 { SADB_UPDATE, "sadb_update", NULL }, 128 { SADB_X_ADDFLOW, "sadb_addflow", NULL }, 129 { SADB_X_ASKPOLICY, "sadb_askpolicy", NULL }, 130 { SADB_X_DELFLOW, "sadb_delflow", NULL }, 131 { SADB_X_GRPSPIS, "sadb_grpspis", NULL }, 132 { SADB_X_PROMISC, "sadb_promisc", NULL }, 133 { 0, NULL, NULL }, 134 }; 135 136 struct idname sa_types[] = { 137 { SADB_SATYPE_UNSPEC, "unspec", NULL }, 138 { SADB_SATYPE_AH, "ah", NULL }, 139 { SADB_SATYPE_ESP, "esp", NULL }, 140 { SADB_SATYPE_RSVP, "rsvp", NULL }, 141 { SADB_SATYPE_OSPFV2, "ospfv2", NULL }, 142 { SADB_SATYPE_RIPV2, "ripv2", NULL }, 143 { SADB_SATYPE_MIP, "mip", NULL }, 144 { SADB_X_SATYPE_IPIP, "ipip", NULL }, 145 { SADB_X_SATYPE_TCPSIGNATURE, "tcpmd5", NULL }, 146 { SADB_X_SATYPE_IPCOMP, "ipcomp", NULL }, 147 { 0, NULL, NULL } 148 }; 149 150 struct idname auth_types[] = { 151 { SADB_AALG_NONE, "none", NULL }, 152 { SADB_AALG_MD5HMAC, "hmac-md5", NULL }, 153 { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", NULL }, 154 { SADB_AALG_SHA1HMAC, "hmac-sha1", NULL }, 155 { SADB_X_AALG_SHA2_256, "hmac-sha2-256", NULL }, 156 { SADB_X_AALG_SHA2_384, "hmac-sha2-384", NULL }, 157 { SADB_X_AALG_SHA2_512, "hmac-sha2-512", NULL }, 158 { SADB_X_AALG_AES128GMAC, "gmac-aes-128", NULL }, 159 { SADB_X_AALG_AES192GMAC, "gmac-aes-192", NULL }, 160 { SADB_X_AALG_AES256GMAC, "gmac-aes-256", NULL }, 161 { SADB_X_AALG_CHACHA20POLY1305, "chacha20-poly1305", NULL }, 162 { 0, NULL, NULL } 163 }; 164 165 struct idname enc_types[] = { 166 { SADB_EALG_NONE, "none", NULL }, 167 { SADB_EALG_3DESCBC, "3des-cbc", NULL }, 168 { SADB_X_EALG_AES, "aes", NULL }, 169 { SADB_X_EALG_AESCTR, "aesctr", NULL }, 170 { SADB_X_EALG_AESGCM16, "aes-gcm", NULL }, 171 { SADB_X_EALG_AESGMAC, "aes-gmac", NULL }, 172 { SADB_X_EALG_BLF, "blowfish", NULL }, 173 { SADB_X_EALG_CAST, "cast128", NULL }, 174 { SADB_EALG_NULL, "null", NULL }, 175 { SADB_X_EALG_CHACHA20POLY1305, "chacha20-poly1305", NULL }, 176 { 0, NULL, NULL } 177 }; 178 179 struct idname comp_types[] = { 180 { SADB_X_CALG_NONE, "none", NULL }, 181 { SADB_X_CALG_OUI, "oui", NULL }, 182 { SADB_X_CALG_DEFLATE, "deflate", NULL }, 183 { SADB_X_CALG_LZS, "lzs", NULL }, 184 { 0, NULL, NULL } 185 }; 186 187 struct idname flag_types[] = { 188 { SADB_SAFLAGS_PFS, "pfs", NULL }, 189 { SADB_X_SAFLAGS_TUNNEL, "tunnel", NULL }, 190 { SADB_X_SAFLAGS_CHAINDEL, "chaindel", NULL }, 191 { SADB_X_SAFLAGS_UDPENCAP, "udpencap", NULL }, 192 { SADB_X_SAFLAGS_ESN, "esn", NULL }, 193 { 0, NULL, NULL } 194 }; 195 196 struct idname identity_types[] = { 197 { SADB_IDENTTYPE_RESERVED, "reserved", NULL }, 198 { SADB_IDENTTYPE_PREFIX, "prefix", NULL }, 199 { SADB_IDENTTYPE_FQDN, "fqdn", NULL }, 200 { SADB_IDENTTYPE_USERFQDN, "ufqdn", NULL }, 201 { 0, NULL, NULL } 202 }; 203 204 struct idname flow_types[] = { 205 { SADB_X_FLOW_TYPE_USE, "use", NULL }, 206 { SADB_X_FLOW_TYPE_ACQUIRE, "acquire", NULL }, 207 { SADB_X_FLOW_TYPE_REQUIRE, "require", NULL }, 208 { SADB_X_FLOW_TYPE_BYPASS, "bypass", NULL }, 209 { SADB_X_FLOW_TYPE_DENY, "deny", NULL }, 210 { SADB_X_FLOW_TYPE_DONTACQ, "dontacq", NULL }, 211 { 0, NULL, NULL } 212 }; 213 214 struct idname states[] = { 215 { SADB_SASTATE_LARVAL, "larval", NULL }, 216 { SADB_SASTATE_MATURE, "mature", NULL }, 217 { SADB_SASTATE_DYING, "dying", NULL }, 218 { SADB_SASTATE_DEAD, "dead", NULL }, 219 { 0, NULL, NULL } 220 }; 221 222 static struct idname * 223 lookup(struct idname *tab, u_int32_t id) 224 { 225 struct idname *entry; 226 227 for (entry = tab; entry->name; entry++) 228 if (entry->id == id) 229 return (entry); 230 return (NULL); 231 } 232 233 static char * 234 lookup_name(struct idname *tab, u_int32_t id) 235 { 236 struct idname *entry; 237 238 entry = lookup(tab, id); 239 return (entry ? entry->name : "unknown"); 240 } 241 242 static void 243 print_ext(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 244 { 245 struct idname *entry; 246 247 if ((entry = lookup(ext_types, ext->sadb_ext_type)) == NULL) { 248 printf("unknown ext: type %u len %u\n", 249 ext->sadb_ext_type, ext->sadb_ext_len); 250 return; 251 } 252 printf("\t%s: ", entry->name); 253 if (entry->func != NULL) 254 (*entry->func)(ext, msg, opts); 255 else 256 printf("type %u len %u", 257 ext->sadb_ext_type, ext->sadb_ext_len); 258 printf("\n"); 259 } 260 261 static char * 262 print_flags(uint32_t flags) 263 { 264 static char fstr[80]; 265 struct idname *entry; 266 int len; 267 int i, comma = 0, n; 268 269 len = snprintf(fstr, sizeof(fstr), "%#x<", flags); 270 if (len < 0 || (size_t)len >= sizeof(fstr)) 271 return (NULL); 272 for (i = 0; i < 32; i++) { 273 if ((flags & (1 << i)) == 0 || 274 (entry = lookup(flag_types, 1 << i)) == NULL) 275 continue; 276 n = snprintf(fstr + len, sizeof(fstr) - len - 1, 277 comma ? ",%s" : "%s", entry->name); 278 if (n < 0 || (size_t)n >= sizeof(fstr) - len - 1) 279 return (NULL); 280 len += n; 281 comma = 1; 282 } 283 strlcat(fstr, ">", sizeof(fstr)); 284 285 return (fstr); 286 } 287 288 static void 289 print_sa(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 290 { 291 struct sadb_sa *sa = (struct sadb_sa *)ext; 292 293 if (msg->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) 294 printf("cpi 0x%8.8x comp %s\n", 295 ntohl(sa->sadb_sa_spi), 296 lookup_name(comp_types, sa->sadb_sa_encrypt)); 297 else 298 printf("spi 0x%8.8x auth %s enc %s\n", 299 ntohl(sa->sadb_sa_spi), 300 lookup_name(auth_types, sa->sadb_sa_auth), 301 lookup_name(enc_types, sa->sadb_sa_encrypt)); 302 printf("\t\tstate %s replay %u flags %s", 303 lookup_name(states, sa->sadb_sa_state), 304 sa->sadb_sa_replay, print_flags(sa->sadb_sa_flags)); 305 } 306 307 /* ARGSUSED1 */ 308 static void 309 print_addr(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 310 { 311 struct sadb_address *addr = (struct sadb_address *)ext; 312 struct sockaddr *sa; 313 struct sockaddr_in *sin4; 314 struct sockaddr_in6 *sin6; 315 char hbuf[NI_MAXHOST]; 316 317 sa = (struct sockaddr *)(addr + 1); 318 if (sa->sa_family == 0) 319 printf("<any>"); 320 else if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0, 321 NI_NUMERICHOST)) 322 printf("<could not get numeric hostname>"); 323 else 324 printf("%s", hbuf); 325 switch (sa->sa_family) { 326 case AF_INET: 327 sin4 = (struct sockaddr_in *)sa; 328 if (sin4->sin_port) 329 printf(" port %u", ntohs(sin4->sin_port)); 330 break; 331 case AF_INET6: 332 sin6 = (struct sockaddr_in6 *)sa; 333 if (sin6->sin6_port) 334 printf(" port %u", ntohs(sin6->sin6_port)); 335 break; 336 } 337 } 338 339 /* ARGSUSED1 */ 340 static void 341 print_key(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 342 { 343 struct sadb_key *key = (struct sadb_key *)ext; 344 u_int8_t *data; 345 int i; 346 347 printf("bits %u: ", key->sadb_key_bits); 348 data = (u_int8_t *)(key + 1); 349 for (i = 0; i < key->sadb_key_bits / 8; i++) { 350 printf("%2.2x", data[i]); 351 data[i] = 0x00; /* clear sensitive data */ 352 } 353 } 354 355 /* ARGSUSED1 */ 356 static void 357 print_life(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 358 { 359 struct sadb_lifetime *life = (struct sadb_lifetime *)ext; 360 361 printf("alloc %u bytes %llu add %llu first %llu", 362 life->sadb_lifetime_allocations, 363 life->sadb_lifetime_bytes, 364 life->sadb_lifetime_addtime, 365 life->sadb_lifetime_usetime); 366 } 367 368 static void 369 print_proto(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 370 { 371 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 372 373 /* overloaded */ 374 if (msg->sadb_msg_type == SADB_X_GRPSPIS) 375 printf("satype %s flags %x", 376 lookup_name(sa_types, proto->sadb_protocol_proto), 377 proto->sadb_protocol_flags); 378 else 379 printf("proto %u flags %x", 380 proto->sadb_protocol_proto, proto->sadb_protocol_flags); 381 } 382 383 /* ARGSUSED1 */ 384 static void 385 print_flow(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 386 { 387 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 388 char *dir = "unknown"; 389 390 switch (proto->sadb_protocol_direction) { 391 case IPSP_DIRECTION_IN: 392 dir = "in"; 393 break; 394 case IPSP_DIRECTION_OUT: 395 dir = "out"; 396 break; 397 } 398 printf("type %s direction %s", 399 lookup_name(flow_types, proto->sadb_protocol_proto), dir); 400 } 401 402 static void 403 print_tag(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 404 { 405 struct sadb_x_tag *stag = (struct sadb_x_tag *)ext; 406 char *p; 407 408 p = (char *)(stag + 1); 409 printf("%s", p); 410 } 411 412 static void 413 print_tap(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 414 { 415 struct sadb_x_tap *stap = (struct sadb_x_tap *)ext; 416 417 printf("enc%u", stap->sadb_x_tap_unit); 418 } 419 420 static void 421 print_satype(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 422 { 423 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 424 425 printf("type %s", lookup_name(sa_types, proto->sadb_protocol_proto)); 426 } 427 428 static void 429 print_counter(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 430 { 431 struct sadb_x_counter *scnt = (struct sadb_x_counter *)ext; 432 433 printf("\n"); 434 435 #define plural(n) ((n) != 1 ? "s" : "") 436 #define p(f, m) if (scnt->f || opts & IPSECCTL_OPT_VERBOSE2) \ 437 printf(m, scnt->f, plural(scnt->f)) 438 p(sadb_x_counter_ipackets, "\t\t%llu input packet%s\n"); 439 p(sadb_x_counter_opackets, "\t\t%llu output packet%s\n"); 440 p(sadb_x_counter_ibytes, "\t\t%llu input byte%s\n"); 441 p(sadb_x_counter_obytes, "\t\t%llu output byte%s\n"); 442 p(sadb_x_counter_idecompbytes, "\t\t%llu input byte%s, decompressed\n"); 443 p(sadb_x_counter_ouncompbytes,"\t\t%llu output byte%s, uncompressed\n"); 444 p(sadb_x_counter_idrops, "\t\t%llu packet%s dropped on input\n"); 445 p(sadb_x_counter_odrops, "\t\t%llu packet%s dropped on output\n"); 446 #undef p 447 #undef plural 448 } 449 450 static char * 451 alg_by_ext(u_int8_t ext_type, u_int8_t id) 452 { 453 switch (ext_type) { 454 case SADB_EXT_SUPPORTED_ENCRYPT: 455 return lookup_name(enc_types, id); 456 case SADB_EXT_SUPPORTED_AUTH: 457 return lookup_name(auth_types, id); 458 case SADB_X_EXT_SUPPORTED_COMP: 459 return lookup_name(comp_types, id); 460 default: 461 return "unknown"; 462 } 463 } 464 465 static void 466 print_alg(struct sadb_alg *alg, u_int8_t ext_type) 467 { 468 printf("\t\t%s iv %u min %u max %u", 469 alg_by_ext(ext_type, alg->sadb_alg_id), alg->sadb_alg_ivlen, 470 alg->sadb_alg_minbits, alg->sadb_alg_maxbits); 471 } 472 473 /* ARGSUSED1 */ 474 static void 475 print_supp(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 476 { 477 struct sadb_supported *supported = (struct sadb_supported *)ext; 478 struct sadb_alg *alg; 479 480 printf("\n"); 481 for (alg = (struct sadb_alg *)(supported + 1); 482 (size_t)((u_int8_t *)alg - (u_int8_t *)ext) < 483 ext->sadb_ext_len * PFKEYV2_CHUNK; 484 alg++) { 485 struct sadb_alg *next = alg + 1; 486 print_alg(alg, ext->sadb_ext_type); 487 if ((size_t)((u_int8_t *)next - (u_int8_t *)ext) < 488 ext->sadb_ext_len * PFKEYV2_CHUNK) 489 printf("\n"); 490 } 491 } 492 493 /* ARGSUSED1 */ 494 static void 495 print_comb(struct sadb_comb *comb, struct sadb_msg *msg, int opts) 496 { 497 printf("\t\tauth %s min %u max %u\n" 498 "\t\tenc %s min %u max %u\n" 499 "\t\taddtime hard %llu soft %llu\n" 500 "\t\tusetime hard %llu soft %llu", 501 lookup_name(auth_types, comb->sadb_comb_auth), 502 comb->sadb_comb_auth_minbits, 503 comb->sadb_comb_auth_maxbits, 504 lookup_name(enc_types, comb->sadb_comb_encrypt), 505 comb->sadb_comb_encrypt_minbits, 506 comb->sadb_comb_encrypt_maxbits, 507 comb->sadb_comb_soft_addtime, 508 comb->sadb_comb_hard_addtime, 509 comb->sadb_comb_soft_usetime, 510 comb->sadb_comb_hard_usetime); 511 #if 0 512 comb->sadb_comb_flags, 513 comb->sadb_comb_reserved, 514 comb->sadb_comb_soft_allocations, 515 comb->sadb_comb_hard_allocations, 516 comb->sadb_comb_soft_bytes, 517 comb->sadb_comb_hard_bytes, 518 #endif 519 } 520 521 /* ARGSUSED1 */ 522 static void 523 print_prop(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 524 { 525 struct sadb_prop *prop = (struct sadb_prop *)ext; 526 struct sadb_comb *comb; 527 528 printf("replay %u\n", prop->sadb_prop_replay); 529 for (comb = (struct sadb_comb *)(prop + 1); 530 (size_t)((u_int8_t *)comb - (u_int8_t *)ext) < 531 ext->sadb_ext_len * PFKEYV2_CHUNK; 532 comb++) 533 print_comb(comb, msg, opts); 534 } 535 536 /* ARGSUSED1 */ 537 static void 538 print_sens(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 539 { 540 struct sadb_sens *sens = (struct sadb_sens *)ext; 541 542 printf("dpd %u sens_level %u integ_level %u", 543 sens->sadb_sens_dpd, 544 sens->sadb_sens_sens_level, 545 sens->sadb_sens_integ_level); 546 } 547 548 /* ARGSUSED1 */ 549 static void 550 print_spir(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 551 { 552 struct sadb_spirange *spirange = (struct sadb_spirange *)ext; 553 554 printf("min 0x%8.8x max 0x%8.8x", 555 spirange->sadb_spirange_min, spirange->sadb_spirange_max); 556 } 557 558 /* ARGSUSED1 */ 559 static void 560 print_ident(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 561 { 562 struct sadb_ident *ident = (struct sadb_ident *)ext; 563 564 printf("type %s id %llu: %s", 565 lookup_name(identity_types, ident->sadb_ident_type), 566 ident->sadb_ident_id, (char *)(ident + 1)); 567 } 568 569 /* ARGSUSED1 */ 570 static void 571 print_policy(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 572 { 573 struct sadb_x_policy *x_policy = (struct sadb_x_policy *)ext; 574 575 printf("seq %u", x_policy->sadb_x_policy_seq); 576 } 577 578 /* ARGSUSED1 */ 579 static void 580 print_udpenc(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 581 { 582 struct sadb_x_udpencap *x_udpencap = (struct sadb_x_udpencap *)ext; 583 584 printf("udpencap port %u", ntohs(x_udpencap->sadb_x_udpencap_port)); 585 } 586 587 /* ARGSUSED1 */ 588 static void 589 print_rdomain(struct sadb_ext *ext, struct sadb_msg *msg, int opts) 590 { 591 struct sadb_x_rdomain *srdomain = (struct sadb_x_rdomain *)ext; 592 593 printf("%d/%d", srdomain->sadb_x_rdomain_dom1, 594 srdomain->sadb_x_rdomain_dom2); 595 } 596 597 static void 598 setup_extensions(struct sadb_msg *msg) 599 { 600 struct sadb_ext *ext; 601 602 bzero(extensions, sizeof(extensions)); 603 if (msg->sadb_msg_len == 0) 604 return; 605 for (ext = (struct sadb_ext *)(msg + 1); 606 (size_t)((u_int8_t *)ext - (u_int8_t *)msg) < 607 msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0; 608 ext = (struct sadb_ext *)((u_int8_t *)ext + 609 ext->sadb_ext_len * PFKEYV2_CHUNK)) 610 extensions[ext->sadb_ext_type] = ext; 611 } 612 613 static void 614 parse_addr(struct sadb_ext *ext, struct ipsec_addr_wrap *ipa) 615 { 616 struct sadb_address *addr = (struct sadb_address *)ext; 617 struct sockaddr *sa; 618 619 if (addr == NULL) 620 return; 621 sa = (struct sockaddr *)(addr + 1); 622 switch (sa->sa_family) { 623 case AF_INET: 624 ipa->address.v4 = ((struct sockaddr_in *)sa)->sin_addr; 625 set_ipmask(ipa, 32); 626 break; 627 case AF_INET6: 628 ipa->address.v6 = ((struct sockaddr_in6 *)sa)->sin6_addr; 629 set_ipmask(ipa, 128); 630 break; 631 } 632 ipa->af = sa->sa_family; 633 ipa->next = NULL; 634 ipa->tail = ipa; 635 } 636 637 static void 638 parse_key(struct sadb_ext *ext, struct ipsec_key *ikey) 639 { 640 struct sadb_key *key = (struct sadb_key *)ext; 641 u_int8_t *data; 642 643 if (key == NULL) 644 return; 645 data = (u_int8_t *)(key + 1); 646 ikey->data = data; 647 ikey->len = key->sadb_key_bits / 8; 648 } 649 650 static void 651 parse_satype(struct sadb_ext *ext, u_int8_t *satype) 652 { 653 struct sadb_protocol *proto = (struct sadb_protocol *)ext; 654 655 if (proto == NULL) 656 return; 657 switch (proto->sadb_protocol_proto) { 658 case SADB_SATYPE_ESP: 659 *satype = IPSEC_ESP; 660 break; 661 case SADB_SATYPE_AH: 662 *satype = IPSEC_AH; 663 break; 664 case SADB_X_SATYPE_IPCOMP: 665 *satype = IPSEC_IPCOMP; 666 break; 667 case SADB_X_SATYPE_IPIP: 668 *satype = IPSEC_IPIP; 669 break; 670 default: 671 return; 672 } 673 } 674 675 u_int32_t 676 pfkey_get_spi(struct sadb_msg *msg) 677 { 678 struct sadb_sa *sa; 679 680 setup_extensions(msg); 681 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 682 return (ntohl(sa->sadb_sa_spi)); 683 } 684 685 /* opposite of pfkey_sa() */ 686 void 687 pfkey_print_sa(struct sadb_msg *msg, int opts) 688 { 689 int i; 690 struct ipsec_rule r; 691 struct ipsec_key enckey, authkey; 692 struct ipsec_transforms xfs; 693 struct ipsec_addr_wrap src, dst, dst2; 694 struct sadb_sa *sa, *sa2; 695 696 setup_extensions(msg); 697 sa = (struct sadb_sa *)extensions[SADB_EXT_SA]; 698 bzero(&r, sizeof r); 699 r.type |= RULE_SA; 700 r.tmode = (msg->sadb_msg_satype != SADB_X_SATYPE_TCPSIGNATURE) && 701 (sa->sadb_sa_flags & SADB_X_SAFLAGS_TUNNEL) ? 702 IPSEC_TUNNEL : IPSEC_TRANSPORT; 703 r.spi = ntohl(sa->sadb_sa_spi); 704 705 switch (msg->sadb_msg_satype) { 706 case SADB_SATYPE_AH: 707 r.satype = IPSEC_AH; 708 break; 709 case SADB_SATYPE_ESP: 710 r.satype = IPSEC_ESP; 711 break; 712 case SADB_X_SATYPE_IPCOMP: 713 r.satype = IPSEC_IPCOMP; 714 break; 715 case SADB_X_SATYPE_TCPSIGNATURE: 716 r.satype = IPSEC_TCPMD5; 717 break; 718 case SADB_X_SATYPE_IPIP: 719 r.satype = IPSEC_IPIP; 720 break; 721 default: 722 return; 723 } 724 bzero(&dst, sizeof dst); 725 bzero(&src, sizeof src); 726 parse_addr(extensions[SADB_EXT_ADDRESS_SRC], &src); 727 parse_addr(extensions[SADB_EXT_ADDRESS_DST], &dst); 728 r.src = &src; 729 r.dst = &dst; 730 if (r.satype == IPSEC_IPCOMP) { 731 if (sa->sadb_sa_encrypt) { 732 bzero(&xfs, sizeof xfs); 733 r.xfs = &xfs; 734 switch (sa->sadb_sa_encrypt) { 735 case SADB_X_CALG_DEFLATE: 736 xfs.compxf = &compxfs[COMPXF_DEFLATE]; 737 break; 738 case SADB_X_CALG_LZS: 739 xfs.compxf = &compxfs[COMPXF_LZS]; 740 break; 741 } 742 } 743 } else if (r.satype == IPSEC_TCPMD5) { 744 bzero(&authkey, sizeof authkey); 745 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 746 r.authkey = &authkey; 747 } else if (sa->sadb_sa_encrypt || sa->sadb_sa_auth) { 748 bzero(&xfs, sizeof xfs); 749 r.xfs = &xfs; 750 if (sa->sadb_sa_encrypt) { 751 bzero(&enckey, sizeof enckey); 752 parse_key(extensions[SADB_EXT_KEY_ENCRYPT], &enckey); 753 r.enckey = &enckey; 754 755 switch (sa->sadb_sa_encrypt) { 756 case SADB_EALG_3DESCBC: 757 xfs.encxf = &encxfs[ENCXF_3DES_CBC]; 758 break; 759 case SADB_X_EALG_AES: 760 switch (r.enckey->len) { 761 case 192/8: 762 xfs.encxf = &encxfs[ENCXF_AES_192]; 763 break; 764 case 256/8: 765 xfs.encxf = &encxfs[ENCXF_AES_256]; 766 break; 767 default: 768 xfs.encxf = &encxfs[ENCXF_AES]; 769 break; 770 } 771 break; 772 case SADB_X_EALG_AESCTR: 773 switch (r.enckey->len) { 774 case 28: 775 xfs.encxf = &encxfs[ENCXF_AES_192_CTR]; 776 break; 777 case 36: 778 xfs.encxf = &encxfs[ENCXF_AES_256_CTR]; 779 break; 780 default: 781 xfs.encxf = &encxfs[ENCXF_AESCTR]; 782 break; 783 } 784 break; 785 case SADB_X_EALG_AESGCM16: 786 switch (r.enckey->len) { 787 case 28: 788 xfs.encxf = &encxfs[ENCXF_AES_192_GCM]; 789 break; 790 case 36: 791 xfs.encxf = &encxfs[ENCXF_AES_256_GCM]; 792 break; 793 default: 794 xfs.encxf = &encxfs[ENCXF_AES_128_GCM]; 795 break; 796 } 797 break; 798 case SADB_X_EALG_AESGMAC: 799 switch (r.enckey->len) { 800 case 28: 801 xfs.encxf = &encxfs[ENCXF_AES_192_GMAC]; 802 break; 803 case 36: 804 xfs.encxf = &encxfs[ENCXF_AES_256_GMAC]; 805 break; 806 default: 807 xfs.encxf = &encxfs[ENCXF_AES_128_GMAC]; 808 break; 809 } 810 break; 811 case SADB_X_EALG_BLF: 812 xfs.encxf = &encxfs[ENCXF_BLOWFISH]; 813 break; 814 case SADB_X_EALG_CAST: 815 xfs.encxf = &encxfs[ENCXF_CAST128]; 816 break; 817 case SADB_X_EALG_CHACHA20POLY1305: 818 xfs.encxf = &encxfs[ENCXF_CHACHA20_POLY1305]; 819 break; 820 case SADB_EALG_NULL: 821 xfs.encxf = &encxfs[ENCXF_NULL]; 822 break; 823 } 824 } 825 if (sa->sadb_sa_auth) { 826 bzero(&authkey, sizeof authkey); 827 parse_key(extensions[SADB_EXT_KEY_AUTH], &authkey); 828 r.authkey = &authkey; 829 830 switch (sa->sadb_sa_auth) { 831 case SADB_AALG_MD5HMAC: 832 xfs.authxf = &authxfs[AUTHXF_HMAC_MD5]; 833 break; 834 case SADB_X_AALG_RIPEMD160HMAC: 835 xfs.authxf = &authxfs[AUTHXF_HMAC_RIPEMD160]; 836 break; 837 case SADB_AALG_SHA1HMAC: 838 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA1]; 839 break; 840 case SADB_X_AALG_SHA2_256: 841 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_256]; 842 break; 843 case SADB_X_AALG_SHA2_384: 844 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_384]; 845 break; 846 case SADB_X_AALG_SHA2_512: 847 xfs.authxf = &authxfs[AUTHXF_HMAC_SHA2_512]; 848 break; 849 } 850 } 851 } 852 if (!(opts & IPSECCTL_OPT_SHOWKEY)) { 853 bzero(&enckey, sizeof enckey); 854 bzero(&authkey, sizeof authkey); 855 extensions[SADB_EXT_KEY_AUTH] = NULL; 856 extensions[SADB_EXT_KEY_ENCRYPT] = NULL; 857 } 858 if (extensions[SADB_X_EXT_SA2]) { 859 r.type |= RULE_BUNDLE; 860 sa2 = (struct sadb_sa *)extensions[SADB_X_EXT_SA2]; 861 r.spi2 = ntohl(sa2->sadb_sa_spi); 862 parse_addr(extensions[SADB_X_EXT_DST2], &dst2); 863 r.dst2 = &dst2; 864 parse_satype(extensions[SADB_X_EXT_SATYPE2], &r.proto2); 865 r.proto = r.satype; 866 } 867 ipsecctl_print_rule(&r, opts); 868 869 if (opts & IPSECCTL_OPT_VERBOSE) { 870 for (i = 0; i <= SADB_EXT_MAX; i++) 871 if (extensions[i]) 872 print_ext(extensions[i], msg, opts); 873 } 874 fflush(stdout); 875 } 876 877 /* ARGSUSED1 */ 878 void 879 pfkey_monitor_sa(struct sadb_msg *msg, int opts) 880 { 881 int i; 882 883 setup_extensions(msg); 884 885 printf("%s: satype %s vers %u len %u seq %u pid %u\n", 886 lookup_name(msg_types, msg->sadb_msg_type), 887 lookup_name(sa_types, msg->sadb_msg_satype), 888 msg->sadb_msg_version, msg->sadb_msg_len, 889 msg->sadb_msg_seq, 890 msg->sadb_msg_pid); 891 if (msg->sadb_msg_errno) 892 printf("\terrno %u: %s\n", msg->sadb_msg_errno, 893 strerror(msg->sadb_msg_errno)); 894 for (i = 0; i <= SADB_EXT_MAX; i++) 895 if (extensions[i]) 896 print_ext(extensions[i], msg, opts); 897 fflush(stdout); 898 } 899 900 void 901 pfkey_print_raw(u_int8_t *data, ssize_t len) 902 { 903 int i; 904 const u_int8_t *sp = (const u_int8_t *)data; 905 906 printf("RAW PFKEYV2 MESSAGE:\n"); 907 for (i = 0; i < len; i++) { 908 if ((i % 8 == 0) && (i != 0)) 909 printf("\n"); 910 printf("%02x ", *sp); 911 sp++; 912 } 913 printf("\n"); 914 } 915