lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (the "License"). You may not use |
| 5 | * this file except in compliance with the License. You can obtain a copy |
| 6 | * in the file LICENSE in the source distribution or at |
| 7 | * https://www.openssl.org/source/license.html |
| 8 | */ |
| 9 | |
| 10 | /* callback functions used by s_client, s_server, and s_time */ |
| 11 | #include <stdio.h> |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> /* for memcpy() and strcmp() */ |
| 14 | #include "apps.h" |
| 15 | #include <openssl/err.h> |
| 16 | #include <openssl/rand.h> |
| 17 | #include <openssl/x509.h> |
| 18 | #include <openssl/ssl.h> |
| 19 | #include <openssl/bn.h> |
| 20 | #ifndef OPENSSL_NO_DH |
| 21 | # include <openssl/dh.h> |
| 22 | #endif |
| 23 | #include "s_apps.h" |
| 24 | |
| 25 | #define COOKIE_SECRET_LENGTH 16 |
| 26 | |
| 27 | VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 }; |
| 28 | |
| 29 | #ifndef OPENSSL_NO_SOCK |
| 30 | static unsigned char cookie_secret[COOKIE_SECRET_LENGTH]; |
| 31 | static int cookie_initialized = 0; |
| 32 | #endif |
| 33 | static BIO *bio_keylog = NULL; |
| 34 | |
| 35 | static const char *lookup(int val, const STRINT_PAIR* list, const char* def) |
| 36 | { |
| 37 | for ( ; list->name; ++list) |
| 38 | if (list->retval == val) |
| 39 | return list->name; |
| 40 | return def; |
| 41 | } |
| 42 | |
| 43 | int verify_callback(int ok, X509_STORE_CTX *ctx) |
| 44 | { |
| 45 | X509 *err_cert; |
| 46 | int err, depth; |
| 47 | |
| 48 | err_cert = X509_STORE_CTX_get_current_cert(ctx); |
| 49 | err = X509_STORE_CTX_get_error(ctx); |
| 50 | depth = X509_STORE_CTX_get_error_depth(ctx); |
| 51 | |
| 52 | if (!verify_args.quiet || !ok) { |
| 53 | BIO_printf(bio_err, "depth=%d ", depth); |
| 54 | if (err_cert != NULL) { |
| 55 | X509_NAME_print_ex(bio_err, |
| 56 | X509_get_subject_name(err_cert), |
| 57 | 0, get_nameopt()); |
| 58 | BIO_puts(bio_err, "\n"); |
| 59 | } else { |
| 60 | BIO_puts(bio_err, "<no cert>\n"); |
| 61 | } |
| 62 | } |
| 63 | if (!ok) { |
| 64 | BIO_printf(bio_err, "verify error:num=%d:%s\n", err, |
| 65 | X509_verify_cert_error_string(err)); |
| 66 | if (verify_args.depth < 0 || verify_args.depth >= depth) { |
| 67 | if (!verify_args.return_error) |
| 68 | ok = 1; |
| 69 | verify_args.error = err; |
| 70 | } else { |
| 71 | ok = 0; |
| 72 | verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG; |
| 73 | } |
| 74 | } |
| 75 | switch (err) { |
| 76 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: |
| 77 | if (err_cert != NULL) { |
| 78 | BIO_puts(bio_err, "issuer= "); |
| 79 | X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert), |
| 80 | 0, get_nameopt()); |
| 81 | BIO_puts(bio_err, "\n"); |
| 82 | } |
| 83 | break; |
| 84 | case X509_V_ERR_CERT_NOT_YET_VALID: |
| 85 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: |
| 86 | if (err_cert != NULL) { |
| 87 | BIO_printf(bio_err, "notBefore="); |
| 88 | ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert)); |
| 89 | BIO_printf(bio_err, "\n"); |
| 90 | } |
| 91 | break; |
| 92 | case X509_V_ERR_CERT_HAS_EXPIRED: |
| 93 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: |
| 94 | if (err_cert != NULL) { |
| 95 | BIO_printf(bio_err, "notAfter="); |
| 96 | ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert)); |
| 97 | BIO_printf(bio_err, "\n"); |
| 98 | } |
| 99 | break; |
| 100 | case X509_V_ERR_NO_EXPLICIT_POLICY: |
| 101 | if (!verify_args.quiet) |
| 102 | policies_print(ctx); |
| 103 | break; |
| 104 | } |
| 105 | if (err == X509_V_OK && ok == 2 && !verify_args.quiet) |
| 106 | policies_print(ctx); |
| 107 | if (ok && !verify_args.quiet) |
| 108 | BIO_printf(bio_err, "verify return:%d\n", ok); |
| 109 | return ok; |
| 110 | } |
| 111 | |
| 112 | int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file) |
| 113 | { |
| 114 | if (cert_file != NULL) { |
| 115 | if (SSL_CTX_use_certificate_file(ctx, cert_file, |
| 116 | SSL_FILETYPE_PEM) <= 0) { |
| 117 | BIO_printf(bio_err, "unable to get certificate from '%s'\n", |
| 118 | cert_file); |
| 119 | ERR_print_errors(bio_err); |
| 120 | return 0; |
| 121 | } |
| 122 | if (key_file == NULL) |
| 123 | key_file = cert_file; |
| 124 | if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) { |
| 125 | BIO_printf(bio_err, "unable to get private key from '%s'\n", |
| 126 | key_file); |
| 127 | ERR_print_errors(bio_err); |
| 128 | return 0; |
| 129 | } |
| 130 | |
| 131 | /* |
| 132 | * If we are using DSA, we can copy the parameters from the private |
| 133 | * key |
| 134 | */ |
| 135 | |
| 136 | /* |
| 137 | * Now we know that a key and cert have been set against the SSL |
| 138 | * context |
| 139 | */ |
| 140 | if (!SSL_CTX_check_private_key(ctx)) { |
| 141 | BIO_printf(bio_err, |
| 142 | "Private key does not match the certificate public key\n"); |
| 143 | return 0; |
| 144 | } |
| 145 | } |
| 146 | return 1; |
| 147 | } |
| 148 | |
| 149 | int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key, |
| 150 | STACK_OF(X509) *chain, int build_chain) |
| 151 | { |
| 152 | int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0; |
| 153 | if (cert == NULL) |
| 154 | return 1; |
| 155 | if (SSL_CTX_use_certificate(ctx, cert) <= 0) { |
| 156 | BIO_printf(bio_err, "error setting certificate\n"); |
| 157 | ERR_print_errors(bio_err); |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) { |
| 162 | BIO_printf(bio_err, "error setting private key\n"); |
| 163 | ERR_print_errors(bio_err); |
| 164 | return 0; |
| 165 | } |
| 166 | |
| 167 | /* |
| 168 | * Now we know that a key and cert have been set against the SSL context |
| 169 | */ |
| 170 | if (!SSL_CTX_check_private_key(ctx)) { |
| 171 | BIO_printf(bio_err, |
| 172 | "Private key does not match the certificate public key\n"); |
| 173 | return 0; |
| 174 | } |
| 175 | if (chain && !SSL_CTX_set1_chain(ctx, chain)) { |
| 176 | BIO_printf(bio_err, "error setting certificate chain\n"); |
| 177 | ERR_print_errors(bio_err); |
| 178 | return 0; |
| 179 | } |
| 180 | if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) { |
| 181 | BIO_printf(bio_err, "error building certificate chain\n"); |
| 182 | ERR_print_errors(bio_err); |
| 183 | return 0; |
| 184 | } |
| 185 | return 1; |
| 186 | } |
| 187 | |
| 188 | static STRINT_PAIR cert_type_list[] = { |
| 189 | {"RSA sign", TLS_CT_RSA_SIGN}, |
| 190 | {"DSA sign", TLS_CT_DSS_SIGN}, |
| 191 | {"RSA fixed DH", TLS_CT_RSA_FIXED_DH}, |
| 192 | {"DSS fixed DH", TLS_CT_DSS_FIXED_DH}, |
| 193 | {"ECDSA sign", TLS_CT_ECDSA_SIGN}, |
| 194 | {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH}, |
| 195 | {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH}, |
| 196 | {"GOST01 Sign", TLS_CT_GOST01_SIGN}, |
| 197 | {"GOST12 Sign", TLS_CT_GOST12_SIGN}, |
| 198 | {NULL} |
| 199 | }; |
| 200 | |
| 201 | static void ssl_print_client_cert_types(BIO *bio, SSL *s) |
| 202 | { |
| 203 | const unsigned char *p; |
| 204 | int i; |
| 205 | int cert_type_num = SSL_get0_certificate_types(s, &p); |
| 206 | if (!cert_type_num) |
| 207 | return; |
| 208 | BIO_puts(bio, "Client Certificate Types: "); |
| 209 | for (i = 0; i < cert_type_num; i++) { |
| 210 | unsigned char cert_type = p[i]; |
| 211 | const char *cname = lookup((int)cert_type, cert_type_list, NULL); |
| 212 | |
| 213 | if (i) |
| 214 | BIO_puts(bio, ", "); |
| 215 | if (cname != NULL) |
| 216 | BIO_puts(bio, cname); |
| 217 | else |
| 218 | BIO_printf(bio, "UNKNOWN (%d),", cert_type); |
| 219 | } |
| 220 | BIO_puts(bio, "\n"); |
| 221 | } |
| 222 | |
| 223 | static const char *get_sigtype(int nid) |
| 224 | { |
| 225 | switch (nid) { |
| 226 | case EVP_PKEY_RSA: |
| 227 | return "RSA"; |
| 228 | |
| 229 | case EVP_PKEY_RSA_PSS: |
| 230 | return "RSA-PSS"; |
| 231 | |
| 232 | case EVP_PKEY_DSA: |
| 233 | return "DSA"; |
| 234 | |
| 235 | case EVP_PKEY_EC: |
| 236 | return "ECDSA"; |
| 237 | |
| 238 | case NID_ED25519: |
| 239 | return "Ed25519"; |
| 240 | |
| 241 | case NID_ED448: |
| 242 | return "Ed448"; |
| 243 | |
| 244 | case NID_id_GostR3410_2001: |
| 245 | return "gost2001"; |
| 246 | |
| 247 | case NID_id_GostR3410_2012_256: |
| 248 | return "gost2012_256"; |
| 249 | |
| 250 | case NID_id_GostR3410_2012_512: |
| 251 | return "gost2012_512"; |
| 252 | |
| 253 | default: |
| 254 | return NULL; |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | static int do_print_sigalgs(BIO *out, SSL *s, int shared) |
| 259 | { |
| 260 | int i, nsig, client; |
| 261 | client = SSL_is_server(s) ? 0 : 1; |
| 262 | if (shared) |
| 263 | nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL); |
| 264 | else |
| 265 | nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL); |
| 266 | if (nsig == 0) |
| 267 | return 1; |
| 268 | |
| 269 | if (shared) |
| 270 | BIO_puts(out, "Shared "); |
| 271 | |
| 272 | if (client) |
| 273 | BIO_puts(out, "Requested "); |
| 274 | BIO_puts(out, "Signature Algorithms: "); |
| 275 | for (i = 0; i < nsig; i++) { |
| 276 | int hash_nid, sign_nid; |
| 277 | unsigned char rhash, rsign; |
| 278 | const char *sstr = NULL; |
| 279 | if (shared) |
| 280 | SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL, |
| 281 | &rsign, &rhash); |
| 282 | else |
| 283 | SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash); |
| 284 | if (i) |
| 285 | BIO_puts(out, ":"); |
| 286 | sstr = get_sigtype(sign_nid); |
| 287 | if (sstr) |
| 288 | BIO_printf(out, "%s", sstr); |
| 289 | else |
| 290 | BIO_printf(out, "0x%02X", (int)rsign); |
| 291 | if (hash_nid != NID_undef) |
| 292 | BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid)); |
| 293 | else if (sstr == NULL) |
| 294 | BIO_printf(out, "+0x%02X", (int)rhash); |
| 295 | } |
| 296 | BIO_puts(out, "\n"); |
| 297 | return 1; |
| 298 | } |
| 299 | |
| 300 | int ssl_print_sigalgs(BIO *out, SSL *s) |
| 301 | { |
| 302 | int nid; |
| 303 | if (!SSL_is_server(s)) |
| 304 | ssl_print_client_cert_types(out, s); |
| 305 | do_print_sigalgs(out, s, 0); |
| 306 | do_print_sigalgs(out, s, 1); |
| 307 | if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef) |
| 308 | BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid)); |
| 309 | if (SSL_get_peer_signature_type_nid(s, &nid)) |
| 310 | BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid)); |
| 311 | return 1; |
| 312 | } |
| 313 | |
| 314 | #ifndef OPENSSL_NO_EC |
| 315 | int ssl_print_point_formats(BIO *out, SSL *s) |
| 316 | { |
| 317 | int i, nformats; |
| 318 | const char *pformats; |
| 319 | nformats = SSL_get0_ec_point_formats(s, &pformats); |
| 320 | if (nformats <= 0) |
| 321 | return 1; |
| 322 | BIO_puts(out, "Supported Elliptic Curve Point Formats: "); |
| 323 | for (i = 0; i < nformats; i++, pformats++) { |
| 324 | if (i) |
| 325 | BIO_puts(out, ":"); |
| 326 | switch (*pformats) { |
| 327 | case TLSEXT_ECPOINTFORMAT_uncompressed: |
| 328 | BIO_puts(out, "uncompressed"); |
| 329 | break; |
| 330 | |
| 331 | case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime: |
| 332 | BIO_puts(out, "ansiX962_compressed_prime"); |
| 333 | break; |
| 334 | |
| 335 | case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2: |
| 336 | BIO_puts(out, "ansiX962_compressed_char2"); |
| 337 | break; |
| 338 | |
| 339 | default: |
| 340 | BIO_printf(out, "unknown(%d)", (int)*pformats); |
| 341 | break; |
| 342 | |
| 343 | } |
| 344 | } |
| 345 | BIO_puts(out, "\n"); |
| 346 | return 1; |
| 347 | } |
| 348 | |
| 349 | int ssl_print_groups(BIO *out, SSL *s, int noshared) |
| 350 | { |
| 351 | int i, ngroups, *groups, nid; |
| 352 | const char *gname; |
| 353 | |
| 354 | ngroups = SSL_get1_groups(s, NULL); |
| 355 | if (ngroups <= 0) |
| 356 | return 1; |
| 357 | groups = app_malloc(ngroups * sizeof(int), "groups to print"); |
| 358 | SSL_get1_groups(s, groups); |
| 359 | |
| 360 | BIO_puts(out, "Supported Elliptic Groups: "); |
| 361 | for (i = 0; i < ngroups; i++) { |
| 362 | if (i) |
| 363 | BIO_puts(out, ":"); |
| 364 | nid = groups[i]; |
| 365 | /* If unrecognised print out hex version */ |
| 366 | if (nid & TLSEXT_nid_unknown) { |
| 367 | BIO_printf(out, "0x%04X", nid & 0xFFFF); |
| 368 | } else { |
| 369 | /* TODO(TLS1.3): Get group name here */ |
| 370 | /* Use NIST name for curve if it exists */ |
| 371 | gname = EC_curve_nid2nist(nid); |
| 372 | if (gname == NULL) |
| 373 | gname = OBJ_nid2sn(nid); |
| 374 | BIO_printf(out, "%s", gname); |
| 375 | } |
| 376 | } |
| 377 | OPENSSL_free(groups); |
| 378 | if (noshared) { |
| 379 | BIO_puts(out, "\n"); |
| 380 | return 1; |
| 381 | } |
| 382 | BIO_puts(out, "\nShared Elliptic groups: "); |
| 383 | ngroups = SSL_get_shared_group(s, -1); |
| 384 | for (i = 0; i < ngroups; i++) { |
| 385 | if (i) |
| 386 | BIO_puts(out, ":"); |
| 387 | nid = SSL_get_shared_group(s, i); |
| 388 | /* TODO(TLS1.3): Convert for DH groups */ |
| 389 | gname = EC_curve_nid2nist(nid); |
| 390 | if (gname == NULL) |
| 391 | gname = OBJ_nid2sn(nid); |
| 392 | BIO_printf(out, "%s", gname); |
| 393 | } |
| 394 | if (ngroups == 0) |
| 395 | BIO_puts(out, "NONE"); |
| 396 | BIO_puts(out, "\n"); |
| 397 | return 1; |
| 398 | } |
| 399 | #endif |
| 400 | |
| 401 | int ssl_print_tmp_key(BIO *out, SSL *s) |
| 402 | { |
| 403 | EVP_PKEY *key; |
| 404 | |
| 405 | if (!SSL_get_peer_tmp_key(s, &key)) |
| 406 | return 1; |
| 407 | BIO_puts(out, "Server Temp Key: "); |
| 408 | switch (EVP_PKEY_id(key)) { |
| 409 | case EVP_PKEY_RSA: |
| 410 | BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key)); |
| 411 | break; |
| 412 | |
| 413 | case EVP_PKEY_DH: |
| 414 | BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key)); |
| 415 | break; |
| 416 | #ifndef OPENSSL_NO_EC |
| 417 | case EVP_PKEY_EC: |
| 418 | { |
| 419 | EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key); |
| 420 | int nid; |
| 421 | const char *cname; |
| 422 | nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); |
| 423 | EC_KEY_free(ec); |
| 424 | cname = EC_curve_nid2nist(nid); |
| 425 | if (cname == NULL) |
| 426 | cname = OBJ_nid2sn(nid); |
| 427 | BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key)); |
| 428 | } |
| 429 | break; |
| 430 | #endif |
| 431 | default: |
| 432 | BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)), |
| 433 | EVP_PKEY_bits(key)); |
| 434 | } |
| 435 | EVP_PKEY_free(key); |
| 436 | return 1; |
| 437 | } |
| 438 | |
| 439 | long bio_dump_callback(BIO *bio, int cmd, const char *argp, |
| 440 | int argi, long argl, long ret) |
| 441 | { |
| 442 | BIO *out; |
| 443 | |
| 444 | out = (BIO *)BIO_get_callback_arg(bio); |
| 445 | if (out == NULL) |
| 446 | return ret; |
| 447 | |
| 448 | if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) { |
| 449 | BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| 450 | (void *)bio, (void *)argp, (unsigned long)argi, ret, ret); |
| 451 | BIO_dump(out, argp, (int)ret); |
| 452 | return ret; |
| 453 | } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) { |
| 454 | BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| 455 | (void *)bio, (void *)argp, (unsigned long)argi, ret, ret); |
| 456 | BIO_dump(out, argp, (int)ret); |
| 457 | } |
| 458 | return ret; |
| 459 | } |
| 460 | |
| 461 | void apps_ssl_info_callback(const SSL *s, int where, int ret) |
| 462 | { |
| 463 | const char *str; |
| 464 | int w; |
| 465 | |
| 466 | w = where & ~SSL_ST_MASK; |
| 467 | |
| 468 | if (w & SSL_ST_CONNECT) |
| 469 | str = "SSL_connect"; |
| 470 | else if (w & SSL_ST_ACCEPT) |
| 471 | str = "SSL_accept"; |
| 472 | else |
| 473 | str = "undefined"; |
| 474 | |
| 475 | if (where & SSL_CB_LOOP) { |
| 476 | BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s)); |
| 477 | } else if (where & SSL_CB_ALERT) { |
| 478 | str = (where & SSL_CB_READ) ? "read" : "write"; |
| 479 | BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n", |
| 480 | str, |
| 481 | SSL_alert_type_string_long(ret), |
| 482 | SSL_alert_desc_string_long(ret)); |
| 483 | } else if (where & SSL_CB_EXIT) { |
| 484 | if (ret == 0) |
| 485 | BIO_printf(bio_err, "%s:failed in %s\n", |
| 486 | str, SSL_state_string_long(s)); |
| 487 | else if (ret < 0) |
| 488 | BIO_printf(bio_err, "%s:error in %s\n", |
| 489 | str, SSL_state_string_long(s)); |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | static STRINT_PAIR ssl_versions[] = { |
| 494 | {"SSL 3.0", SSL3_VERSION}, |
| 495 | {"TLS 1.0", TLS1_VERSION}, |
| 496 | {"TLS 1.1", TLS1_1_VERSION}, |
| 497 | {"TLS 1.2", TLS1_2_VERSION}, |
| 498 | {"TLS 1.3", TLS1_3_VERSION}, |
| 499 | {"DTLS 1.0", DTLS1_VERSION}, |
| 500 | {"DTLS 1.0 (bad)", DTLS1_BAD_VER}, |
| 501 | {NULL} |
| 502 | }; |
| 503 | |
| 504 | static STRINT_PAIR alert_types[] = { |
| 505 | {" close_notify", 0}, |
| 506 | {" end_of_early_data", 1}, |
| 507 | {" unexpected_message", 10}, |
| 508 | {" bad_record_mac", 20}, |
| 509 | {" decryption_failed", 21}, |
| 510 | {" record_overflow", 22}, |
| 511 | {" decompression_failure", 30}, |
| 512 | {" handshake_failure", 40}, |
| 513 | {" bad_certificate", 42}, |
| 514 | {" unsupported_certificate", 43}, |
| 515 | {" certificate_revoked", 44}, |
| 516 | {" certificate_expired", 45}, |
| 517 | {" certificate_unknown", 46}, |
| 518 | {" illegal_parameter", 47}, |
| 519 | {" unknown_ca", 48}, |
| 520 | {" access_denied", 49}, |
| 521 | {" decode_error", 50}, |
| 522 | {" decrypt_error", 51}, |
| 523 | {" export_restriction", 60}, |
| 524 | {" protocol_version", 70}, |
| 525 | {" insufficient_security", 71}, |
| 526 | {" internal_error", 80}, |
| 527 | {" inappropriate_fallback", 86}, |
| 528 | {" user_canceled", 90}, |
| 529 | {" no_renegotiation", 100}, |
| 530 | {" missing_extension", 109}, |
| 531 | {" unsupported_extension", 110}, |
| 532 | {" certificate_unobtainable", 111}, |
| 533 | {" unrecognized_name", 112}, |
| 534 | {" bad_certificate_status_response", 113}, |
| 535 | {" bad_certificate_hash_value", 114}, |
| 536 | {" unknown_psk_identity", 115}, |
| 537 | {" certificate_required", 116}, |
| 538 | {NULL} |
| 539 | }; |
| 540 | |
| 541 | static STRINT_PAIR handshakes[] = { |
| 542 | {", HelloRequest", SSL3_MT_HELLO_REQUEST}, |
| 543 | {", ClientHello", SSL3_MT_CLIENT_HELLO}, |
| 544 | {", ServerHello", SSL3_MT_SERVER_HELLO}, |
| 545 | {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST}, |
| 546 | {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET}, |
| 547 | {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA}, |
| 548 | {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS}, |
| 549 | {", Certificate", SSL3_MT_CERTIFICATE}, |
| 550 | {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE}, |
| 551 | {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST}, |
| 552 | {", ServerHelloDone", SSL3_MT_SERVER_DONE}, |
| 553 | {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY}, |
| 554 | {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE}, |
| 555 | {", Finished", SSL3_MT_FINISHED}, |
| 556 | {", CertificateUrl", SSL3_MT_CERTIFICATE_URL}, |
| 557 | {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS}, |
| 558 | {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA}, |
| 559 | {", KeyUpdate", SSL3_MT_KEY_UPDATE}, |
| 560 | #ifndef OPENSSL_NO_NEXTPROTONEG |
| 561 | {", NextProto", SSL3_MT_NEXT_PROTO}, |
| 562 | #endif |
| 563 | {", MessageHash", SSL3_MT_MESSAGE_HASH}, |
| 564 | {NULL} |
| 565 | }; |
| 566 | |
| 567 | void msg_cb(int write_p, int version, int content_type, const void *buf, |
| 568 | size_t len, SSL *ssl, void *arg) |
| 569 | { |
| 570 | BIO *bio = arg; |
| 571 | const char *str_write_p = write_p ? ">>>" : "<<<"; |
| 572 | const char *str_version = lookup(version, ssl_versions, "???"); |
| 573 | const char *str_content_type = "", *str_details1 = "", *str_details2 = ""; |
| 574 | const unsigned char* bp = buf; |
| 575 | |
| 576 | if (version == SSL3_VERSION || |
| 577 | version == TLS1_VERSION || |
| 578 | version == TLS1_1_VERSION || |
| 579 | version == TLS1_2_VERSION || |
| 580 | version == TLS1_3_VERSION || |
| 581 | version == DTLS1_VERSION || version == DTLS1_BAD_VER) { |
| 582 | switch (content_type) { |
| 583 | case 20: |
| 584 | str_content_type = ", ChangeCipherSpec"; |
| 585 | break; |
| 586 | case 21: |
| 587 | str_content_type = ", Alert"; |
| 588 | str_details1 = ", ???"; |
| 589 | if (len == 2) { |
| 590 | switch (bp[0]) { |
| 591 | case 1: |
| 592 | str_details1 = ", warning"; |
| 593 | break; |
| 594 | case 2: |
| 595 | str_details1 = ", fatal"; |
| 596 | break; |
| 597 | } |
| 598 | str_details2 = lookup((int)bp[1], alert_types, " ???"); |
| 599 | } |
| 600 | break; |
| 601 | case 22: |
| 602 | str_content_type = ", Handshake"; |
| 603 | str_details1 = "???"; |
| 604 | if (len > 0) |
| 605 | str_details1 = lookup((int)bp[0], handshakes, "???"); |
| 606 | break; |
| 607 | case 23: |
| 608 | str_content_type = ", ApplicationData"; |
| 609 | break; |
| 610 | #ifndef OPENSSL_NO_HEARTBEATS |
| 611 | case 24: |
| 612 | str_details1 = ", Heartbeat"; |
| 613 | |
| 614 | if (len > 0) { |
| 615 | switch (bp[0]) { |
| 616 | case 1: |
| 617 | str_details1 = ", HeartbeatRequest"; |
| 618 | break; |
| 619 | case 2: |
| 620 | str_details1 = ", HeartbeatResponse"; |
| 621 | break; |
| 622 | } |
| 623 | } |
| 624 | break; |
| 625 | #endif |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, |
| 630 | str_content_type, (unsigned long)len, str_details1, |
| 631 | str_details2); |
| 632 | |
| 633 | if (len > 0) { |
| 634 | size_t num, i; |
| 635 | |
| 636 | BIO_printf(bio, " "); |
| 637 | num = len; |
| 638 | for (i = 0; i < num; i++) { |
| 639 | if (i % 16 == 0 && i > 0) |
| 640 | BIO_printf(bio, "\n "); |
| 641 | BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]); |
| 642 | } |
| 643 | if (i < len) |
| 644 | BIO_printf(bio, " ..."); |
| 645 | BIO_printf(bio, "\n"); |
| 646 | } |
| 647 | (void)BIO_flush(bio); |
| 648 | } |
| 649 | |
| 650 | static STRINT_PAIR tlsext_types[] = { |
| 651 | {"server name", TLSEXT_TYPE_server_name}, |
| 652 | {"max fragment length", TLSEXT_TYPE_max_fragment_length}, |
| 653 | {"client certificate URL", TLSEXT_TYPE_client_certificate_url}, |
| 654 | {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys}, |
| 655 | {"truncated HMAC", TLSEXT_TYPE_truncated_hmac}, |
| 656 | {"status request", TLSEXT_TYPE_status_request}, |
| 657 | {"user mapping", TLSEXT_TYPE_user_mapping}, |
| 658 | {"client authz", TLSEXT_TYPE_client_authz}, |
| 659 | {"server authz", TLSEXT_TYPE_server_authz}, |
| 660 | {"cert type", TLSEXT_TYPE_cert_type}, |
| 661 | {"supported_groups", TLSEXT_TYPE_supported_groups}, |
| 662 | {"EC point formats", TLSEXT_TYPE_ec_point_formats}, |
| 663 | {"SRP", TLSEXT_TYPE_srp}, |
| 664 | {"signature algorithms", TLSEXT_TYPE_signature_algorithms}, |
| 665 | {"use SRTP", TLSEXT_TYPE_use_srtp}, |
| 666 | {"heartbeat", TLSEXT_TYPE_heartbeat}, |
| 667 | {"session ticket", TLSEXT_TYPE_session_ticket}, |
| 668 | {"renegotiation info", TLSEXT_TYPE_renegotiate}, |
| 669 | {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp}, |
| 670 | {"TLS padding", TLSEXT_TYPE_padding}, |
| 671 | #ifdef TLSEXT_TYPE_next_proto_neg |
| 672 | {"next protocol", TLSEXT_TYPE_next_proto_neg}, |
| 673 | #endif |
| 674 | #ifdef TLSEXT_TYPE_encrypt_then_mac |
| 675 | {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac}, |
| 676 | #endif |
| 677 | #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 678 | {"application layer protocol negotiation", |
| 679 | TLSEXT_TYPE_application_layer_protocol_negotiation}, |
| 680 | #endif |
| 681 | #ifdef TLSEXT_TYPE_extended_master_secret |
| 682 | {"extended master secret", TLSEXT_TYPE_extended_master_secret}, |
| 683 | #endif |
| 684 | {"key share", TLSEXT_TYPE_key_share}, |
| 685 | {"supported versions", TLSEXT_TYPE_supported_versions}, |
| 686 | {"psk", TLSEXT_TYPE_psk}, |
| 687 | {"psk kex modes", TLSEXT_TYPE_psk_kex_modes}, |
| 688 | {"certificate authorities", TLSEXT_TYPE_certificate_authorities}, |
| 689 | {"post handshake auth", TLSEXT_TYPE_post_handshake_auth}, |
| 690 | {NULL} |
| 691 | }; |
| 692 | |
| 693 | /* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */ |
| 694 | static STRINT_PAIR signature_tls13_scheme_list[] = { |
| 695 | {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */}, |
| 696 | {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */}, |
| 697 | /* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */ |
| 698 | /* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */ |
| 699 | {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */}, |
| 700 | {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */}, |
| 701 | {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */}, |
| 702 | {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */}, |
| 703 | {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */}, |
| 704 | {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */}, |
| 705 | {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */}, |
| 706 | {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */}, |
| 707 | {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */}, |
| 708 | {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */}, |
| 709 | {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */}, |
| 710 | {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */}, |
| 711 | {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */}, |
| 712 | {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */}, |
| 713 | {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */}, |
| 714 | {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */}, |
| 715 | {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */}, |
| 716 | {NULL} |
| 717 | }; |
| 718 | |
| 719 | /* from rfc5246 7.4.1.4.1. */ |
| 720 | static STRINT_PAIR signature_tls12_alg_list[] = { |
| 721 | {"anonymous", TLSEXT_signature_anonymous /* 0 */}, |
| 722 | {"RSA", TLSEXT_signature_rsa /* 1 */}, |
| 723 | {"DSA", TLSEXT_signature_dsa /* 2 */}, |
| 724 | {"ECDSA", TLSEXT_signature_ecdsa /* 3 */}, |
| 725 | {NULL} |
| 726 | }; |
| 727 | |
| 728 | /* from rfc5246 7.4.1.4.1. */ |
| 729 | static STRINT_PAIR signature_tls12_hash_list[] = { |
| 730 | {"none", TLSEXT_hash_none /* 0 */}, |
| 731 | {"MD5", TLSEXT_hash_md5 /* 1 */}, |
| 732 | {"SHA1", TLSEXT_hash_sha1 /* 2 */}, |
| 733 | {"SHA224", TLSEXT_hash_sha224 /* 3 */}, |
| 734 | {"SHA256", TLSEXT_hash_sha256 /* 4 */}, |
| 735 | {"SHA384", TLSEXT_hash_sha384 /* 5 */}, |
| 736 | {"SHA512", TLSEXT_hash_sha512 /* 6 */}, |
| 737 | {NULL} |
| 738 | }; |
| 739 | |
| 740 | void tlsext_cb(SSL *s, int client_server, int type, |
| 741 | const unsigned char *data, int len, void *arg) |
| 742 | { |
| 743 | BIO *bio = arg; |
| 744 | const char *extname = lookup(type, tlsext_types, "unknown"); |
| 745 | |
| 746 | BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n", |
| 747 | client_server ? "server" : "client", extname, type, len); |
| 748 | BIO_dump(bio, (const char *)data, len); |
| 749 | (void)BIO_flush(bio); |
| 750 | } |
| 751 | |
| 752 | #ifndef OPENSSL_NO_SOCK |
| 753 | int generate_cookie_callback(SSL *ssl, unsigned char *cookie, |
| 754 | unsigned int *cookie_len) |
| 755 | { |
| 756 | unsigned char *buffer; |
| 757 | size_t length = 0; |
| 758 | unsigned short port; |
| 759 | BIO_ADDR *lpeer = NULL, *peer = NULL; |
| 760 | |
| 761 | /* Initialize a random secret */ |
| 762 | if (!cookie_initialized) { |
| 763 | if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) { |
| 764 | BIO_printf(bio_err, "error setting random cookie secret\n"); |
| 765 | return 0; |
| 766 | } |
| 767 | cookie_initialized = 1; |
| 768 | } |
| 769 | |
| 770 | if (SSL_is_dtls(ssl)) { |
| 771 | lpeer = peer = BIO_ADDR_new(); |
| 772 | if (peer == NULL) { |
| 773 | BIO_printf(bio_err, "memory full\n"); |
| 774 | return 0; |
| 775 | } |
| 776 | |
| 777 | /* Read peer information */ |
| 778 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer); |
| 779 | } else { |
| 780 | peer = ourpeer; |
| 781 | } |
| 782 | |
| 783 | /* Create buffer with peer's address and port */ |
| 784 | if (!BIO_ADDR_rawaddress(peer, NULL, &length)) { |
| 785 | BIO_printf(bio_err, "Failed getting peer address\n"); |
| 786 | return 0; |
| 787 | } |
| 788 | OPENSSL_assert(length != 0); |
| 789 | port = BIO_ADDR_rawport(peer); |
| 790 | length += sizeof(port); |
| 791 | buffer = app_malloc(length, "cookie generate buffer"); |
| 792 | |
| 793 | memcpy(buffer, &port, sizeof(port)); |
| 794 | BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL); |
| 795 | |
| 796 | /* Calculate HMAC of buffer using the secret */ |
| 797 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
| 798 | buffer, length, cookie, cookie_len); |
| 799 | |
| 800 | OPENSSL_free(buffer); |
| 801 | BIO_ADDR_free(lpeer); |
| 802 | |
| 803 | return 1; |
| 804 | } |
| 805 | |
| 806 | int verify_cookie_callback(SSL *ssl, const unsigned char *cookie, |
| 807 | unsigned int cookie_len) |
| 808 | { |
| 809 | unsigned char result[EVP_MAX_MD_SIZE]; |
| 810 | unsigned int resultlength; |
| 811 | |
| 812 | /* Note: we check cookie_initialized because if it's not, |
| 813 | * it cannot be valid */ |
| 814 | if (cookie_initialized |
| 815 | && generate_cookie_callback(ssl, result, &resultlength) |
| 816 | && cookie_len == resultlength |
| 817 | && memcmp(result, cookie, resultlength) == 0) |
| 818 | return 1; |
| 819 | |
| 820 | return 0; |
| 821 | } |
| 822 | |
| 823 | int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie, |
| 824 | size_t *cookie_len) |
| 825 | { |
| 826 | unsigned int temp; |
| 827 | int res = generate_cookie_callback(ssl, cookie, &temp); |
| 828 | |
| 829 | if (res != 0) |
| 830 | *cookie_len = temp; |
| 831 | return res; |
| 832 | } |
| 833 | |
| 834 | int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie, |
| 835 | size_t cookie_len) |
| 836 | { |
| 837 | return verify_cookie_callback(ssl, cookie, cookie_len); |
| 838 | } |
| 839 | |
| 840 | #endif |
| 841 | |
| 842 | /* |
| 843 | * Example of extended certificate handling. Where the standard support of |
| 844 | * one certificate per algorithm is not sufficient an application can decide |
| 845 | * which certificate(s) to use at runtime based on whatever criteria it deems |
| 846 | * appropriate. |
| 847 | */ |
| 848 | |
| 849 | /* Linked list of certificates, keys and chains */ |
| 850 | struct ssl_excert_st { |
| 851 | int certform; |
| 852 | const char *certfile; |
| 853 | int keyform; |
| 854 | const char *keyfile; |
| 855 | const char *chainfile; |
| 856 | X509 *cert; |
| 857 | EVP_PKEY *key; |
| 858 | STACK_OF(X509) *chain; |
| 859 | int build_chain; |
| 860 | struct ssl_excert_st *next, *prev; |
| 861 | }; |
| 862 | |
| 863 | static STRINT_PAIR chain_flags[] = { |
| 864 | {"Overall Validity", CERT_PKEY_VALID}, |
| 865 | {"Sign with EE key", CERT_PKEY_SIGN}, |
| 866 | {"EE signature", CERT_PKEY_EE_SIGNATURE}, |
| 867 | {"CA signature", CERT_PKEY_CA_SIGNATURE}, |
| 868 | {"EE key parameters", CERT_PKEY_EE_PARAM}, |
| 869 | {"CA key parameters", CERT_PKEY_CA_PARAM}, |
| 870 | {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN}, |
| 871 | {"Issuer Name", CERT_PKEY_ISSUER_NAME}, |
| 872 | {"Certificate Type", CERT_PKEY_CERT_TYPE}, |
| 873 | {NULL} |
| 874 | }; |
| 875 | |
| 876 | static void print_chain_flags(SSL *s, int flags) |
| 877 | { |
| 878 | STRINT_PAIR *pp; |
| 879 | |
| 880 | for (pp = chain_flags; pp->name; ++pp) |
| 881 | BIO_printf(bio_err, "\t%s: %s\n", |
| 882 | pp->name, |
| 883 | (flags & pp->retval) ? "OK" : "NOT OK"); |
| 884 | BIO_printf(bio_err, "\tSuite B: "); |
| 885 | if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS) |
| 886 | BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n"); |
| 887 | else |
| 888 | BIO_printf(bio_err, "not tested\n"); |
| 889 | } |
| 890 | |
| 891 | /* |
| 892 | * Very basic selection callback: just use any certificate chain reported as |
| 893 | * valid. More sophisticated could prioritise according to local policy. |
| 894 | */ |
| 895 | static int set_cert_cb(SSL *ssl, void *arg) |
| 896 | { |
| 897 | int i, rv; |
| 898 | SSL_EXCERT *exc = arg; |
| 899 | #ifdef CERT_CB_TEST_RETRY |
| 900 | static int retry_cnt; |
| 901 | if (retry_cnt < 5) { |
| 902 | retry_cnt++; |
| 903 | BIO_printf(bio_err, |
| 904 | "Certificate callback retry test: count %d\n", |
| 905 | retry_cnt); |
| 906 | return -1; |
| 907 | } |
| 908 | #endif |
| 909 | SSL_certs_clear(ssl); |
| 910 | |
| 911 | if (exc == NULL) |
| 912 | return 1; |
| 913 | |
| 914 | /* |
| 915 | * Go to end of list and traverse backwards since we prepend newer |
| 916 | * entries this retains the original order. |
| 917 | */ |
| 918 | while (exc->next != NULL) |
| 919 | exc = exc->next; |
| 920 | |
| 921 | i = 0; |
| 922 | |
| 923 | while (exc != NULL) { |
| 924 | i++; |
| 925 | rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain); |
| 926 | BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i); |
| 927 | X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0, |
| 928 | get_nameopt()); |
| 929 | BIO_puts(bio_err, "\n"); |
| 930 | print_chain_flags(ssl, rv); |
| 931 | if (rv & CERT_PKEY_VALID) { |
| 932 | if (!SSL_use_certificate(ssl, exc->cert) |
| 933 | || !SSL_use_PrivateKey(ssl, exc->key)) { |
| 934 | return 0; |
| 935 | } |
| 936 | /* |
| 937 | * NB: we wouldn't normally do this as it is not efficient |
| 938 | * building chains on each connection better to cache the chain |
| 939 | * in advance. |
| 940 | */ |
| 941 | if (exc->build_chain) { |
| 942 | if (!SSL_build_cert_chain(ssl, 0)) |
| 943 | return 0; |
| 944 | } else if (exc->chain != NULL) { |
| 945 | if (!SSL_set1_chain(ssl, exc->chain)) |
| 946 | return 0; |
| 947 | } |
| 948 | } |
| 949 | exc = exc->prev; |
| 950 | } |
| 951 | return 1; |
| 952 | } |
| 953 | |
| 954 | void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc) |
| 955 | { |
| 956 | SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc); |
| 957 | } |
| 958 | |
| 959 | static int ssl_excert_prepend(SSL_EXCERT **pexc) |
| 960 | { |
| 961 | SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert"); |
| 962 | |
| 963 | memset(exc, 0, sizeof(*exc)); |
| 964 | |
| 965 | exc->next = *pexc; |
| 966 | *pexc = exc; |
| 967 | |
| 968 | if (exc->next) { |
| 969 | exc->certform = exc->next->certform; |
| 970 | exc->keyform = exc->next->keyform; |
| 971 | exc->next->prev = exc; |
| 972 | } else { |
| 973 | exc->certform = FORMAT_PEM; |
| 974 | exc->keyform = FORMAT_PEM; |
| 975 | } |
| 976 | return 1; |
| 977 | |
| 978 | } |
| 979 | |
| 980 | void ssl_excert_free(SSL_EXCERT *exc) |
| 981 | { |
| 982 | SSL_EXCERT *curr; |
| 983 | |
| 984 | if (exc == NULL) |
| 985 | return; |
| 986 | while (exc) { |
| 987 | X509_free(exc->cert); |
| 988 | EVP_PKEY_free(exc->key); |
| 989 | sk_X509_pop_free(exc->chain, X509_free); |
| 990 | curr = exc; |
| 991 | exc = exc->next; |
| 992 | OPENSSL_free(curr); |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | int load_excert(SSL_EXCERT **pexc) |
| 997 | { |
| 998 | SSL_EXCERT *exc = *pexc; |
| 999 | if (exc == NULL) |
| 1000 | return 1; |
| 1001 | /* If nothing in list, free and set to NULL */ |
| 1002 | if (exc->certfile == NULL && exc->next == NULL) { |
| 1003 | ssl_excert_free(exc); |
| 1004 | *pexc = NULL; |
| 1005 | return 1; |
| 1006 | } |
| 1007 | for (; exc; exc = exc->next) { |
| 1008 | if (exc->certfile == NULL) { |
| 1009 | BIO_printf(bio_err, "Missing filename\n"); |
| 1010 | return 0; |
| 1011 | } |
| 1012 | exc->cert = load_cert(exc->certfile, exc->certform, |
| 1013 | "Server Certificate"); |
| 1014 | if (exc->cert == NULL) |
| 1015 | return 0; |
| 1016 | if (exc->keyfile != NULL) { |
| 1017 | exc->key = load_key(exc->keyfile, exc->keyform, |
| 1018 | 0, NULL, NULL, "Server Key"); |
| 1019 | } else { |
| 1020 | exc->key = load_key(exc->certfile, exc->certform, |
| 1021 | 0, NULL, NULL, "Server Key"); |
| 1022 | } |
| 1023 | if (exc->key == NULL) |
| 1024 | return 0; |
| 1025 | if (exc->chainfile != NULL) { |
| 1026 | if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL, |
| 1027 | "Server Chain")) |
| 1028 | return 0; |
| 1029 | } |
| 1030 | } |
| 1031 | return 1; |
| 1032 | } |
| 1033 | |
| 1034 | enum range { OPT_X_ENUM }; |
| 1035 | |
| 1036 | int args_excert(int opt, SSL_EXCERT **pexc) |
| 1037 | { |
| 1038 | SSL_EXCERT *exc = *pexc; |
| 1039 | |
| 1040 | assert(opt > OPT_X__FIRST); |
| 1041 | assert(opt < OPT_X__LAST); |
| 1042 | |
| 1043 | if (exc == NULL) { |
| 1044 | if (!ssl_excert_prepend(&exc)) { |
| 1045 | BIO_printf(bio_err, " %s: Error initialising xcert\n", |
| 1046 | opt_getprog()); |
| 1047 | goto err; |
| 1048 | } |
| 1049 | *pexc = exc; |
| 1050 | } |
| 1051 | |
| 1052 | switch ((enum range)opt) { |
| 1053 | case OPT_X__FIRST: |
| 1054 | case OPT_X__LAST: |
| 1055 | return 0; |
| 1056 | case OPT_X_CERT: |
| 1057 | if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) { |
| 1058 | BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog()); |
| 1059 | goto err; |
| 1060 | } |
| 1061 | *pexc = exc; |
| 1062 | exc->certfile = opt_arg(); |
| 1063 | break; |
| 1064 | case OPT_X_KEY: |
| 1065 | if (exc->keyfile != NULL) { |
| 1066 | BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog()); |
| 1067 | goto err; |
| 1068 | } |
| 1069 | exc->keyfile = opt_arg(); |
| 1070 | break; |
| 1071 | case OPT_X_CHAIN: |
| 1072 | if (exc->chainfile != NULL) { |
| 1073 | BIO_printf(bio_err, "%s: Chain already specified\n", |
| 1074 | opt_getprog()); |
| 1075 | goto err; |
| 1076 | } |
| 1077 | exc->chainfile = opt_arg(); |
| 1078 | break; |
| 1079 | case OPT_X_CHAIN_BUILD: |
| 1080 | exc->build_chain = 1; |
| 1081 | break; |
| 1082 | case OPT_X_CERTFORM: |
| 1083 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform)) |
| 1084 | return 0; |
| 1085 | break; |
| 1086 | case OPT_X_KEYFORM: |
| 1087 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform)) |
| 1088 | return 0; |
| 1089 | break; |
| 1090 | } |
| 1091 | return 1; |
| 1092 | |
| 1093 | err: |
| 1094 | ERR_print_errors(bio_err); |
| 1095 | ssl_excert_free(exc); |
| 1096 | *pexc = NULL; |
| 1097 | return 0; |
| 1098 | } |
| 1099 | |
| 1100 | static void print_raw_cipherlist(SSL *s) |
| 1101 | { |
| 1102 | const unsigned char *rlist; |
| 1103 | static const unsigned char scsv_id[] = { 0, 0xFF }; |
| 1104 | size_t i, rlistlen, num; |
| 1105 | if (!SSL_is_server(s)) |
| 1106 | return; |
| 1107 | num = SSL_get0_raw_cipherlist(s, NULL); |
| 1108 | OPENSSL_assert(num == 2); |
| 1109 | rlistlen = SSL_get0_raw_cipherlist(s, &rlist); |
| 1110 | BIO_puts(bio_err, "Client cipher list: "); |
| 1111 | for (i = 0; i < rlistlen; i += num, rlist += num) { |
| 1112 | const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist); |
| 1113 | if (i) |
| 1114 | BIO_puts(bio_err, ":"); |
| 1115 | if (c != NULL) { |
| 1116 | BIO_puts(bio_err, SSL_CIPHER_get_name(c)); |
| 1117 | } else if (memcmp(rlist, scsv_id, num) == 0) { |
| 1118 | BIO_puts(bio_err, "SCSV"); |
| 1119 | } else { |
| 1120 | size_t j; |
| 1121 | BIO_puts(bio_err, "0x"); |
| 1122 | for (j = 0; j < num; j++) |
| 1123 | BIO_printf(bio_err, "%02X", rlist[j]); |
| 1124 | } |
| 1125 | } |
| 1126 | BIO_puts(bio_err, "\n"); |
| 1127 | } |
| 1128 | |
| 1129 | /* |
| 1130 | * Hex encoder for TLSA RRdata, not ':' delimited. |
| 1131 | */ |
| 1132 | static char *hexencode(const unsigned char *data, size_t len) |
| 1133 | { |
| 1134 | static const char *hex = "0123456789abcdef"; |
| 1135 | char *out; |
| 1136 | char *cp; |
| 1137 | size_t outlen = 2 * len + 1; |
| 1138 | int ilen = (int) outlen; |
| 1139 | |
| 1140 | if (outlen < len || ilen < 0 || outlen != (size_t)ilen) { |
| 1141 | BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n", |
| 1142 | opt_getprog(), len); |
| 1143 | exit(1); |
| 1144 | } |
| 1145 | cp = out = app_malloc(ilen, "TLSA hex data buffer"); |
| 1146 | |
| 1147 | while (len-- > 0) { |
| 1148 | *cp++ = hex[(*data >> 4) & 0x0f]; |
| 1149 | *cp++ = hex[*data++ & 0x0f]; |
| 1150 | } |
| 1151 | *cp = '\0'; |
| 1152 | return out; |
| 1153 | } |
| 1154 | |
| 1155 | void print_verify_detail(SSL *s, BIO *bio) |
| 1156 | { |
| 1157 | int mdpth; |
| 1158 | EVP_PKEY *mspki; |
| 1159 | long verify_err = SSL_get_verify_result(s); |
| 1160 | |
| 1161 | if (verify_err == X509_V_OK) { |
| 1162 | const char *peername = SSL_get0_peername(s); |
| 1163 | |
| 1164 | BIO_printf(bio, "Verification: OK\n"); |
| 1165 | if (peername != NULL) |
| 1166 | BIO_printf(bio, "Verified peername: %s\n", peername); |
| 1167 | } else { |
| 1168 | const char *reason = X509_verify_cert_error_string(verify_err); |
| 1169 | |
| 1170 | BIO_printf(bio, "Verification error: %s\n", reason); |
| 1171 | } |
| 1172 | |
| 1173 | if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) { |
| 1174 | uint8_t usage, selector, mtype; |
| 1175 | const unsigned char *data = NULL; |
| 1176 | size_t dlen = 0; |
| 1177 | char *hexdata; |
| 1178 | |
| 1179 | mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen); |
| 1180 | |
| 1181 | /* |
| 1182 | * The TLSA data field can be quite long when it is a certificate, |
| 1183 | * public key or even a SHA2-512 digest. Because the initial octets of |
| 1184 | * ASN.1 certificates and public keys contain mostly boilerplate OIDs |
| 1185 | * and lengths, we show the last 12 bytes of the data instead, as these |
| 1186 | * are more likely to distinguish distinct TLSA records. |
| 1187 | */ |
| 1188 | #define TLSA_TAIL_SIZE 12 |
| 1189 | if (dlen > TLSA_TAIL_SIZE) |
| 1190 | hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE); |
| 1191 | else |
| 1192 | hexdata = hexencode(data, dlen); |
| 1193 | BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n", |
| 1194 | usage, selector, mtype, |
| 1195 | (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata, |
| 1196 | (mspki != NULL) ? "signed the certificate" : |
| 1197 | mdpth ? "matched TA certificate" : "matched EE certificate", |
| 1198 | mdpth); |
| 1199 | OPENSSL_free(hexdata); |
| 1200 | } |
| 1201 | } |
| 1202 | |
| 1203 | void print_ssl_summary(SSL *s) |
| 1204 | { |
| 1205 | const SSL_CIPHER *c; |
| 1206 | X509 *peer; |
| 1207 | |
| 1208 | BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s)); |
| 1209 | print_raw_cipherlist(s); |
| 1210 | c = SSL_get_current_cipher(s); |
| 1211 | BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c)); |
| 1212 | do_print_sigalgs(bio_err, s, 0); |
| 1213 | peer = SSL_get_peer_certificate(s); |
| 1214 | if (peer != NULL) { |
| 1215 | int nid; |
| 1216 | |
| 1217 | BIO_puts(bio_err, "Peer certificate: "); |
| 1218 | X509_NAME_print_ex(bio_err, X509_get_subject_name(peer), |
| 1219 | 0, get_nameopt()); |
| 1220 | BIO_puts(bio_err, "\n"); |
| 1221 | if (SSL_get_peer_signature_nid(s, &nid)) |
| 1222 | BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid)); |
| 1223 | if (SSL_get_peer_signature_type_nid(s, &nid)) |
| 1224 | BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid)); |
| 1225 | print_verify_detail(s, bio_err); |
| 1226 | } else { |
| 1227 | BIO_puts(bio_err, "No peer certificate\n"); |
| 1228 | } |
| 1229 | X509_free(peer); |
| 1230 | #ifndef OPENSSL_NO_EC |
| 1231 | ssl_print_point_formats(bio_err, s); |
| 1232 | if (SSL_is_server(s)) |
| 1233 | ssl_print_groups(bio_err, s, 1); |
| 1234 | else |
| 1235 | ssl_print_tmp_key(bio_err, s); |
| 1236 | #else |
| 1237 | if (!SSL_is_server(s)) |
| 1238 | ssl_print_tmp_key(bio_err, s); |
| 1239 | #endif |
| 1240 | } |
| 1241 | |
| 1242 | int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str, |
| 1243 | SSL_CTX *ctx) |
| 1244 | { |
| 1245 | int i; |
| 1246 | |
| 1247 | SSL_CONF_CTX_set_ssl_ctx(cctx, ctx); |
| 1248 | for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) { |
| 1249 | const char *flag = sk_OPENSSL_STRING_value(str, i); |
| 1250 | const char *arg = sk_OPENSSL_STRING_value(str, i + 1); |
| 1251 | if (SSL_CONF_cmd(cctx, flag, arg) <= 0) { |
| 1252 | if (arg != NULL) |
| 1253 | BIO_printf(bio_err, "Error with command: \"%s %s\"\n", |
| 1254 | flag, arg); |
| 1255 | else |
| 1256 | BIO_printf(bio_err, "Error with command: \"%s\"\n", flag); |
| 1257 | ERR_print_errors(bio_err); |
| 1258 | return 0; |
| 1259 | } |
| 1260 | } |
| 1261 | if (!SSL_CONF_CTX_finish(cctx)) { |
| 1262 | BIO_puts(bio_err, "Error finishing context\n"); |
| 1263 | ERR_print_errors(bio_err); |
| 1264 | return 0; |
| 1265 | } |
| 1266 | return 1; |
| 1267 | } |
| 1268 | |
| 1269 | static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls) |
| 1270 | { |
| 1271 | X509_CRL *crl; |
| 1272 | int i; |
| 1273 | for (i = 0; i < sk_X509_CRL_num(crls); i++) { |
| 1274 | crl = sk_X509_CRL_value(crls, i); |
| 1275 | X509_STORE_add_crl(st, crl); |
| 1276 | } |
| 1277 | return 1; |
| 1278 | } |
| 1279 | |
| 1280 | int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download) |
| 1281 | { |
| 1282 | X509_STORE *st; |
| 1283 | st = SSL_CTX_get_cert_store(ctx); |
| 1284 | add_crls_store(st, crls); |
| 1285 | if (crl_download) |
| 1286 | store_setup_crl_download(st); |
| 1287 | return 1; |
| 1288 | } |
| 1289 | |
| 1290 | int ssl_load_stores(SSL_CTX *ctx, |
| 1291 | const char *vfyCApath, const char *vfyCAfile, |
| 1292 | const char *chCApath, const char *chCAfile, |
| 1293 | STACK_OF(X509_CRL) *crls, int crl_download) |
| 1294 | { |
| 1295 | X509_STORE *vfy = NULL, *ch = NULL; |
| 1296 | int rv = 0; |
| 1297 | if (vfyCApath != NULL || vfyCAfile != NULL) { |
| 1298 | vfy = X509_STORE_new(); |
| 1299 | if (vfy == NULL) |
| 1300 | goto err; |
| 1301 | if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath)) |
| 1302 | goto err; |
| 1303 | add_crls_store(vfy, crls); |
| 1304 | SSL_CTX_set1_verify_cert_store(ctx, vfy); |
| 1305 | if (crl_download) |
| 1306 | store_setup_crl_download(vfy); |
| 1307 | } |
| 1308 | if (chCApath != NULL || chCAfile != NULL) { |
| 1309 | ch = X509_STORE_new(); |
| 1310 | if (ch == NULL) |
| 1311 | goto err; |
| 1312 | if (!X509_STORE_load_locations(ch, chCAfile, chCApath)) |
| 1313 | goto err; |
| 1314 | SSL_CTX_set1_chain_cert_store(ctx, ch); |
| 1315 | } |
| 1316 | rv = 1; |
| 1317 | err: |
| 1318 | X509_STORE_free(vfy); |
| 1319 | X509_STORE_free(ch); |
| 1320 | return rv; |
| 1321 | } |
| 1322 | |
| 1323 | /* Verbose print out of security callback */ |
| 1324 | |
| 1325 | typedef struct { |
| 1326 | BIO *out; |
| 1327 | int verbose; |
| 1328 | int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid, |
| 1329 | void *other, void *ex); |
| 1330 | } security_debug_ex; |
| 1331 | |
| 1332 | static STRINT_PAIR callback_types[] = { |
| 1333 | {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED}, |
| 1334 | {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED}, |
| 1335 | {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK}, |
| 1336 | #ifndef OPENSSL_NO_DH |
| 1337 | {"Temp DH key bits", SSL_SECOP_TMP_DH}, |
| 1338 | #endif |
| 1339 | {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED}, |
| 1340 | {"Shared Curve", SSL_SECOP_CURVE_SHARED}, |
| 1341 | {"Check Curve", SSL_SECOP_CURVE_CHECK}, |
| 1342 | {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED}, |
| 1343 | {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED}, |
| 1344 | {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK}, |
| 1345 | {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK}, |
| 1346 | {"Certificate chain EE key", SSL_SECOP_EE_KEY}, |
| 1347 | {"Certificate chain CA key", SSL_SECOP_CA_KEY}, |
| 1348 | {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY}, |
| 1349 | {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY}, |
| 1350 | {"Certificate chain CA digest", SSL_SECOP_CA_MD}, |
| 1351 | {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD}, |
| 1352 | {"SSL compression", SSL_SECOP_COMPRESSION}, |
| 1353 | {"Session ticket", SSL_SECOP_TICKET}, |
| 1354 | {NULL} |
| 1355 | }; |
| 1356 | |
| 1357 | static int security_callback_debug(const SSL *s, const SSL_CTX *ctx, |
| 1358 | int op, int bits, int nid, |
| 1359 | void *other, void *ex) |
| 1360 | { |
| 1361 | security_debug_ex *sdb = ex; |
| 1362 | int rv, show_bits = 1, cert_md = 0; |
| 1363 | const char *nm; |
| 1364 | int show_nm; |
| 1365 | rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex); |
| 1366 | if (rv == 1 && sdb->verbose < 2) |
| 1367 | return 1; |
| 1368 | BIO_puts(sdb->out, "Security callback: "); |
| 1369 | |
| 1370 | nm = lookup(op, callback_types, NULL); |
| 1371 | show_nm = nm != NULL; |
| 1372 | switch (op) { |
| 1373 | case SSL_SECOP_TICKET: |
| 1374 | case SSL_SECOP_COMPRESSION: |
| 1375 | show_bits = 0; |
| 1376 | show_nm = 0; |
| 1377 | break; |
| 1378 | case SSL_SECOP_VERSION: |
| 1379 | BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???")); |
| 1380 | show_bits = 0; |
| 1381 | show_nm = 0; |
| 1382 | break; |
| 1383 | case SSL_SECOP_CA_MD: |
| 1384 | case SSL_SECOP_PEER_CA_MD: |
| 1385 | cert_md = 1; |
| 1386 | break; |
| 1387 | case SSL_SECOP_SIGALG_SUPPORTED: |
| 1388 | case SSL_SECOP_SIGALG_SHARED: |
| 1389 | case SSL_SECOP_SIGALG_CHECK: |
| 1390 | case SSL_SECOP_SIGALG_MASK: |
| 1391 | show_nm = 0; |
| 1392 | break; |
| 1393 | } |
| 1394 | if (show_nm) |
| 1395 | BIO_printf(sdb->out, "%s=", nm); |
| 1396 | |
| 1397 | switch (op & SSL_SECOP_OTHER_TYPE) { |
| 1398 | |
| 1399 | case SSL_SECOP_OTHER_CIPHER: |
| 1400 | BIO_puts(sdb->out, SSL_CIPHER_get_name(other)); |
| 1401 | break; |
| 1402 | |
| 1403 | #ifndef OPENSSL_NO_EC |
| 1404 | case SSL_SECOP_OTHER_CURVE: |
| 1405 | { |
| 1406 | const char *cname; |
| 1407 | cname = EC_curve_nid2nist(nid); |
| 1408 | if (cname == NULL) |
| 1409 | cname = OBJ_nid2sn(nid); |
| 1410 | BIO_puts(sdb->out, cname); |
| 1411 | } |
| 1412 | break; |
| 1413 | #endif |
| 1414 | #ifndef OPENSSL_NO_DH |
| 1415 | case SSL_SECOP_OTHER_DH: |
| 1416 | { |
| 1417 | DH *dh = other; |
| 1418 | BIO_printf(sdb->out, "%d", DH_bits(dh)); |
| 1419 | break; |
| 1420 | } |
| 1421 | #endif |
| 1422 | case SSL_SECOP_OTHER_CERT: |
| 1423 | { |
| 1424 | if (cert_md) { |
| 1425 | int sig_nid = X509_get_signature_nid(other); |
| 1426 | BIO_puts(sdb->out, OBJ_nid2sn(sig_nid)); |
| 1427 | } else { |
| 1428 | EVP_PKEY *pkey = X509_get0_pubkey(other); |
| 1429 | const char *algname = ""; |
| 1430 | EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, |
| 1431 | &algname, EVP_PKEY_get0_asn1(pkey)); |
| 1432 | BIO_printf(sdb->out, "%s, bits=%d", |
| 1433 | algname, EVP_PKEY_bits(pkey)); |
| 1434 | } |
| 1435 | break; |
| 1436 | } |
| 1437 | case SSL_SECOP_OTHER_SIGALG: |
| 1438 | { |
| 1439 | const unsigned char *salg = other; |
| 1440 | const char *sname = NULL; |
| 1441 | int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */ |
| 1442 | /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */ |
| 1443 | |
| 1444 | if (nm != NULL) |
| 1445 | BIO_printf(sdb->out, "%s", nm); |
| 1446 | else |
| 1447 | BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op); |
| 1448 | |
| 1449 | sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL); |
| 1450 | if (sname != NULL) { |
| 1451 | BIO_printf(sdb->out, " scheme=%s", sname); |
| 1452 | } else { |
| 1453 | int alg_code = salg[1]; |
| 1454 | int hash_code = salg[0]; |
| 1455 | const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL); |
| 1456 | const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL); |
| 1457 | |
| 1458 | if (alg_str != NULL && hash_str != NULL) |
| 1459 | BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str); |
| 1460 | else |
| 1461 | BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code); |
| 1462 | } |
| 1463 | } |
| 1464 | |
| 1465 | } |
| 1466 | |
| 1467 | if (show_bits) |
| 1468 | BIO_printf(sdb->out, ", security bits=%d", bits); |
| 1469 | BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no"); |
| 1470 | return rv; |
| 1471 | } |
| 1472 | |
| 1473 | void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose) |
| 1474 | { |
| 1475 | static security_debug_ex sdb; |
| 1476 | |
| 1477 | sdb.out = bio_err; |
| 1478 | sdb.verbose = verbose; |
| 1479 | sdb.old_cb = SSL_CTX_get_security_callback(ctx); |
| 1480 | SSL_CTX_set_security_callback(ctx, security_callback_debug); |
| 1481 | SSL_CTX_set0_security_ex_data(ctx, &sdb); |
| 1482 | } |
| 1483 | |
| 1484 | static void keylog_callback(const SSL *ssl, const char *line) |
| 1485 | { |
| 1486 | if (bio_keylog == NULL) { |
| 1487 | BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n"); |
| 1488 | return; |
| 1489 | } |
| 1490 | |
| 1491 | /* |
| 1492 | * There might be concurrent writers to the keylog file, so we must ensure |
| 1493 | * that the given line is written at once. |
| 1494 | */ |
| 1495 | BIO_printf(bio_keylog, "%s\n", line); |
| 1496 | (void)BIO_flush(bio_keylog); |
| 1497 | } |
| 1498 | |
| 1499 | int set_keylog_file(SSL_CTX *ctx, const char *keylog_file) |
| 1500 | { |
| 1501 | /* Close any open files */ |
| 1502 | BIO_free_all(bio_keylog); |
| 1503 | bio_keylog = NULL; |
| 1504 | |
| 1505 | if (ctx == NULL || keylog_file == NULL) { |
| 1506 | /* Keylogging is disabled, OK. */ |
| 1507 | return 0; |
| 1508 | } |
| 1509 | |
| 1510 | /* |
| 1511 | * Append rather than write in order to allow concurrent modification. |
| 1512 | * Furthermore, this preserves existing keylog files which is useful when |
| 1513 | * the tool is run multiple times. |
| 1514 | */ |
| 1515 | bio_keylog = BIO_new_file(keylog_file, "a"); |
| 1516 | if (bio_keylog == NULL) { |
| 1517 | BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file); |
| 1518 | return 1; |
| 1519 | } |
| 1520 | |
| 1521 | /* Write a header for seekable, empty files (this excludes pipes). */ |
| 1522 | if (BIO_tell(bio_keylog) == 0) { |
| 1523 | BIO_puts(bio_keylog, |
| 1524 | "# SSL/TLS secrets log file, generated by OpenSSL\n"); |
| 1525 | (void)BIO_flush(bio_keylog); |
| 1526 | } |
| 1527 | SSL_CTX_set_keylog_callback(ctx, keylog_callback); |
| 1528 | return 0; |
| 1529 | } |
| 1530 | |
| 1531 | void print_ca_names(BIO *bio, SSL *s) |
| 1532 | { |
| 1533 | const char *cs = SSL_is_server(s) ? "server" : "client"; |
| 1534 | const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s); |
| 1535 | int i; |
| 1536 | |
| 1537 | if (sk == NULL || sk_X509_NAME_num(sk) == 0) { |
| 1538 | if (!SSL_is_server(s)) |
| 1539 | BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs); |
| 1540 | return; |
| 1541 | } |
| 1542 | |
| 1543 | BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs); |
| 1544 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { |
| 1545 | X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt()); |
| 1546 | BIO_write(bio, "\n", 1); |
| 1547 | } |
| 1548 | } |