1 /* 2 * ! \file ssl/ssl_conf.c \brief SSL configuration functions 3 */ 4 /* ==================================================================== 5 * Copyright (c) 2012 The OpenSSL Project. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. All advertising materials mentioning features or use of this 20 * software must display the following acknowledgment: 21 * "This product includes software developed by the OpenSSL Project 22 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 23 * 24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25 * endorse or promote products derived from this software without 26 * prior written permission. For written permission, please contact 27 * openssl-core@openssl.org. 28 * 29 * 5. Products derived from this software may not be called "OpenSSL" 30 * nor may "OpenSSL" appear in their names without prior written 31 * permission of the OpenSSL Project. 32 * 33 * 6. Redistributions of any form whatsoever must retain the following 34 * acknowledgment: 35 * "This product includes software developed by the OpenSSL Project 36 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49 * OF THE POSSIBILITY OF SUCH DAMAGE. 50 * ==================================================================== 51 * 52 * This product includes cryptographic software written by Eric Young 53 * (eay@cryptsoft.com). This product includes software written by Tim 54 * Hudson (tjh@cryptsoft.com). 55 * 56 */ 57 58 #ifdef REF_CHECK 59 # include <assert.h> 60 #endif 61 #include <stdio.h> 62 #include "ssl_locl.h" 63 #include <openssl/conf.h> 64 #include <openssl/objects.h> 65 #ifndef OPENSSL_NO_DH 66 # include <openssl/dh.h> 67 #endif 68 69 /* 70 * structure holding name tables. This is used for pemitted elements in lists 71 * such as TLSv1 and single command line switches such as no_tls1 72 */ 73 74 typedef struct { 75 const char *name; 76 int namelen; 77 unsigned int name_flags; 78 unsigned long option_value; 79 } ssl_flag_tbl; 80 81 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */ 82 #define SSL_TFLAG_INV 0x1 83 /* Flags refers to cert_flags not options */ 84 #define SSL_TFLAG_CERT 0x2 85 /* Option can only be used for clients */ 86 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT 87 /* Option can only be used for servers */ 88 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER 89 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER) 90 91 #define SSL_FLAG_TBL(str, flag) \ 92 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag} 93 #define SSL_FLAG_TBL_SRV(str, flag) \ 94 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag} 95 #define SSL_FLAG_TBL_CLI(str, flag) \ 96 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag} 97 #define SSL_FLAG_TBL_INV(str, flag) \ 98 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag} 99 #define SSL_FLAG_TBL_SRV_INV(str, flag) \ 100 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag} 101 #define SSL_FLAG_TBL_CERT(str, flag) \ 102 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag} 103 104 /* 105 * Opaque structure containing SSL configuration context. 106 */ 107 108 struct ssl_conf_ctx_st { 109 /* 110 * Various flags indicating (among other things) which options we will 111 * recognise. 112 */ 113 unsigned int flags; 114 /* Prefix and length of commands */ 115 char *prefix; 116 size_t prefixlen; 117 /* SSL_CTX or SSL structure to perform operations on */ 118 SSL_CTX *ctx; 119 SSL *ssl; 120 /* Pointer to SSL or SSL_CTX options field or NULL if none */ 121 unsigned long *poptions; 122 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */ 123 unsigned int *pcert_flags; 124 /* Current flag table being worked on */ 125 const ssl_flag_tbl *tbl; 126 /* Size of table */ 127 size_t ntbl; 128 }; 129 130 static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl, 131 const char *name, int namelen, int onoff) 132 { 133 /* If name not relevant for context skip */ 134 if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH)) 135 return 0; 136 if (namelen == -1) { 137 if (strcmp(tbl->name, name)) 138 return 0; 139 } else if (tbl->namelen != namelen 140 || strncasecmp(tbl->name, name, namelen)) 141 return 0; 142 if (cctx->poptions) { 143 if (tbl->name_flags & SSL_TFLAG_INV) 144 onoff ^= 1; 145 if (tbl->name_flags & SSL_TFLAG_CERT) { 146 if (onoff) 147 *cctx->pcert_flags |= tbl->option_value; 148 else 149 *cctx->pcert_flags &= ~tbl->option_value; 150 } else { 151 if (onoff) 152 *cctx->poptions |= tbl->option_value; 153 else 154 *cctx->poptions &= ~tbl->option_value; 155 } 156 } 157 return 1; 158 } 159 160 static int ssl_set_option_list(const char *elem, int len, void *usr) 161 { 162 SSL_CONF_CTX *cctx = usr; 163 size_t i; 164 const ssl_flag_tbl *tbl; 165 int onoff = 1; 166 /* 167 * len == -1 indicates not being called in list context, just for single 168 * command line switches, so don't allow +, -. 169 */ 170 if (elem == NULL) 171 return 0; 172 if (len != -1) { 173 if (*elem == '+') { 174 elem++; 175 len--; 176 onoff = 1; 177 } else if (*elem == '-') { 178 elem++; 179 len--; 180 onoff = 0; 181 } 182 } 183 for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) { 184 if (ssl_match_option(cctx, tbl, elem, len, onoff)) 185 return 1; 186 } 187 return 0; 188 } 189 190 /* Single command line switches with no argument e.g. -no_ssl3 */ 191 static int ctrl_str_option(SSL_CONF_CTX *cctx, const char *cmd) 192 { 193 static const ssl_flag_tbl ssl_option_single[] = { 194 SSL_FLAG_TBL("no_ssl2", SSL_OP_NO_SSLv2), 195 SSL_FLAG_TBL("no_ssl3", SSL_OP_NO_SSLv3), 196 SSL_FLAG_TBL("no_tls1", SSL_OP_NO_TLSv1), 197 SSL_FLAG_TBL("no_tls1_1", SSL_OP_NO_TLSv1_1), 198 SSL_FLAG_TBL("no_tls1_2", SSL_OP_NO_TLSv1_2), 199 SSL_FLAG_TBL("bugs", SSL_OP_ALL), 200 SSL_FLAG_TBL("no_comp", SSL_OP_NO_COMPRESSION), 201 SSL_FLAG_TBL_SRV("ecdh_single", SSL_OP_SINGLE_ECDH_USE), 202 #ifndef OPENSSL_NO_TLSEXT 203 SSL_FLAG_TBL("no_ticket", SSL_OP_NO_TICKET), 204 #endif 205 SSL_FLAG_TBL_SRV("serverpref", SSL_OP_CIPHER_SERVER_PREFERENCE), 206 SSL_FLAG_TBL("legacy_renegotiation", 207 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION), 208 SSL_FLAG_TBL_SRV("legacy_server_connect", 209 SSL_OP_LEGACY_SERVER_CONNECT), 210 SSL_FLAG_TBL_SRV("no_resumption_on_reneg", 211 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION), 212 SSL_FLAG_TBL_SRV_INV("no_legacy_server_connect", 213 SSL_OP_LEGACY_SERVER_CONNECT), 214 SSL_FLAG_TBL_CERT("strict", SSL_CERT_FLAG_TLS_STRICT), 215 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL 216 SSL_FLAG_TBL_CERT("debug_broken_protocol", 217 SSL_CERT_FLAG_BROKEN_PROTOCOL), 218 #endif 219 }; 220 cctx->tbl = ssl_option_single; 221 cctx->ntbl = sizeof(ssl_option_single) / sizeof(ssl_flag_tbl); 222 return ssl_set_option_list(cmd, -1, cctx); 223 } 224 225 /* Set supported signature algorithms */ 226 static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value) 227 { 228 int rv; 229 if (cctx->ssl) 230 rv = SSL_set1_sigalgs_list(cctx->ssl, value); 231 /* NB: ctx == NULL performs syntax checking only */ 232 else 233 rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value); 234 return rv > 0; 235 } 236 237 /* Set supported client signature algorithms */ 238 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx, 239 const char *value) 240 { 241 int rv; 242 if (cctx->ssl) 243 rv = SSL_set1_client_sigalgs_list(cctx->ssl, value); 244 /* NB: ctx == NULL performs syntax checking only */ 245 else 246 rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value); 247 return rv > 0; 248 } 249 250 static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value) 251 { 252 int rv; 253 if (cctx->ssl) 254 rv = SSL_set1_curves_list(cctx->ssl, value); 255 /* NB: ctx == NULL performs syntax checking only */ 256 else 257 rv = SSL_CTX_set1_curves_list(cctx->ctx, value); 258 return rv > 0; 259 } 260 261 #ifndef OPENSSL_NO_ECDH 262 /* ECDH temporary parameters */ 263 static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value) 264 { 265 int onoff = -1, rv = 1; 266 if (!(cctx->flags & SSL_CONF_FLAG_SERVER)) 267 return -2; 268 if (cctx->flags & SSL_CONF_FLAG_FILE) { 269 if (*value == '+') { 270 onoff = 1; 271 value++; 272 } 273 if (*value == '-') { 274 onoff = 0; 275 value++; 276 } 277 if (!strcasecmp(value, "automatic")) { 278 if (onoff == -1) 279 onoff = 1; 280 } else if (onoff != -1) 281 return 0; 282 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) { 283 if (!strcmp(value, "auto")) 284 onoff = 1; 285 } 286 287 if (onoff != -1) { 288 if (cctx->ctx) 289 rv = SSL_CTX_set_ecdh_auto(cctx->ctx, onoff); 290 else if (cctx->ssl) 291 rv = SSL_set_ecdh_auto(cctx->ssl, onoff); 292 } else { 293 EC_KEY *ecdh; 294 int nid; 295 nid = EC_curve_nist2nid(value); 296 if (nid == NID_undef) 297 nid = OBJ_sn2nid(value); 298 if (nid == 0) 299 return 0; 300 ecdh = EC_KEY_new_by_curve_name(nid); 301 if (!ecdh) 302 return 0; 303 if (cctx->ctx) 304 rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh); 305 else if (cctx->ssl) 306 rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh); 307 EC_KEY_free(ecdh); 308 } 309 310 return rv > 0; 311 } 312 #endif 313 static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value) 314 { 315 int rv = 1; 316 if (cctx->ctx) 317 rv = SSL_CTX_set_cipher_list(cctx->ctx, value); 318 if (cctx->ssl) 319 rv = SSL_set_cipher_list(cctx->ssl, value); 320 return rv > 0; 321 } 322 323 static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value) 324 { 325 static const ssl_flag_tbl ssl_protocol_list[] = { 326 SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK), 327 SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2), 328 SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3), 329 SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1), 330 SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1), 331 SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2) 332 }; 333 int ret; 334 int sslv2off; 335 336 if (!(cctx->flags & SSL_CONF_FLAG_FILE)) 337 return -2; 338 cctx->tbl = ssl_protocol_list; 339 cctx->ntbl = sizeof(ssl_protocol_list) / sizeof(ssl_flag_tbl); 340 341 sslv2off = *cctx->poptions & SSL_OP_NO_SSLv2; 342 ret = CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx); 343 /* Never turn on SSLv2 through configuration */ 344 *cctx->poptions |= sslv2off; 345 return ret; 346 } 347 348 static int cmd_Options(SSL_CONF_CTX *cctx, const char *value) 349 { 350 static const ssl_flag_tbl ssl_option_list[] = { 351 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET), 352 SSL_FLAG_TBL_INV("EmptyFragments", 353 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS), 354 SSL_FLAG_TBL("Bugs", SSL_OP_ALL), 355 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION), 356 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE), 357 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation", 358 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION), 359 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE), 360 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE), 361 SSL_FLAG_TBL("UnsafeLegacyRenegotiation", 362 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION), 363 }; 364 if (!(cctx->flags & SSL_CONF_FLAG_FILE)) 365 return -2; 366 if (value == NULL) 367 return -3; 368 cctx->tbl = ssl_option_list; 369 cctx->ntbl = sizeof(ssl_option_list) / sizeof(ssl_flag_tbl); 370 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx); 371 } 372 373 static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value) 374 { 375 int rv = 1; 376 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE)) 377 return -2; 378 if (cctx->ctx) 379 rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value); 380 if (cctx->ssl) 381 rv = SSL_use_certificate_file(cctx->ssl, value, SSL_FILETYPE_PEM); 382 return rv > 0; 383 } 384 385 static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value) 386 { 387 int rv = 1; 388 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE)) 389 return -2; 390 if (cctx->ctx) 391 rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM); 392 if (cctx->ssl) 393 rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM); 394 return rv > 0; 395 } 396 397 static int cmd_ServerInfoFile(SSL_CONF_CTX *cctx, const char *value) 398 { 399 int rv = 1; 400 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE)) 401 return -2; 402 if (!(cctx->flags & SSL_CONF_FLAG_SERVER)) 403 return -2; 404 if (cctx->ctx) 405 rv = SSL_CTX_use_serverinfo_file(cctx->ctx, value); 406 return rv > 0; 407 } 408 409 #ifndef OPENSSL_NO_DH 410 static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value) 411 { 412 int rv = 0; 413 DH *dh = NULL; 414 BIO *in = NULL; 415 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE)) 416 return -2; 417 if (cctx->ctx || cctx->ssl) { 418 in = BIO_new(BIO_s_file_internal()); 419 if (!in) 420 goto end; 421 if (BIO_read_filename(in, value) <= 0) 422 goto end; 423 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL); 424 if (!dh) 425 goto end; 426 } else 427 return 1; 428 if (cctx->ctx) 429 rv = SSL_CTX_set_tmp_dh(cctx->ctx, dh); 430 if (cctx->ssl) 431 rv = SSL_set_tmp_dh(cctx->ssl, dh); 432 end: 433 if (dh) 434 DH_free(dh); 435 if (in) 436 BIO_free(in); 437 return rv > 0; 438 } 439 #endif 440 typedef struct { 441 int (*cmd) (SSL_CONF_CTX *cctx, const char *value); 442 const char *str_file; 443 const char *str_cmdline; 444 unsigned int value_type; 445 } ssl_conf_cmd_tbl; 446 447 /* Table of supported parameters */ 448 449 #define SSL_CONF_CMD(name, cmdopt, type) \ 450 {cmd_##name, #name, cmdopt, type} 451 452 #define SSL_CONF_CMD_STRING(name, cmdopt) \ 453 SSL_CONF_CMD(name, cmdopt, SSL_CONF_TYPE_STRING) 454 455 static const ssl_conf_cmd_tbl ssl_conf_cmds[] = { 456 SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs"), 457 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs"), 458 SSL_CONF_CMD_STRING(Curves, "curves"), 459 #ifndef OPENSSL_NO_ECDH 460 SSL_CONF_CMD_STRING(ECDHParameters, "named_curve"), 461 #endif 462 SSL_CONF_CMD_STRING(CipherString, "cipher"), 463 SSL_CONF_CMD_STRING(Protocol, NULL), 464 SSL_CONF_CMD_STRING(Options, NULL), 465 SSL_CONF_CMD(Certificate, "cert", SSL_CONF_TYPE_FILE), 466 SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_TYPE_FILE), 467 SSL_CONF_CMD(ServerInfoFile, NULL, SSL_CONF_TYPE_FILE), 468 #ifndef OPENSSL_NO_DH 469 SSL_CONF_CMD(DHParameters, "dhparam", SSL_CONF_TYPE_FILE) 470 #endif 471 }; 472 473 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd) 474 { 475 if (!pcmd || !*pcmd) 476 return 0; 477 /* If a prefix is set, check and skip */ 478 if (cctx->prefix) { 479 if (strlen(*pcmd) <= cctx->prefixlen) 480 return 0; 481 if (cctx->flags & SSL_CONF_FLAG_CMDLINE && 482 strncmp(*pcmd, cctx->prefix, cctx->prefixlen)) 483 return 0; 484 if (cctx->flags & SSL_CONF_FLAG_FILE && 485 strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen)) 486 return 0; 487 *pcmd += cctx->prefixlen; 488 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) { 489 if (**pcmd != '-' || !(*pcmd)[1]) 490 return 0; 491 *pcmd += 1; 492 } 493 return 1; 494 } 495 496 static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx, 497 const char *cmd) 498 { 499 const ssl_conf_cmd_tbl *t; 500 size_t i; 501 if (cmd == NULL) 502 return NULL; 503 504 /* Look for matching parameter name in table */ 505 for (i = 0, t = ssl_conf_cmds; 506 i < sizeof(ssl_conf_cmds) / sizeof(ssl_conf_cmd_tbl); i++, t++) { 507 if (cctx->flags & SSL_CONF_FLAG_CMDLINE) { 508 if (t->str_cmdline && !strcmp(t->str_cmdline, cmd)) 509 return t; 510 } 511 if (cctx->flags & SSL_CONF_FLAG_FILE) { 512 if (t->str_file && !strcasecmp(t->str_file, cmd)) 513 return t; 514 } 515 } 516 return NULL; 517 } 518 519 int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value) 520 { 521 const ssl_conf_cmd_tbl *runcmd; 522 if (cmd == NULL) { 523 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_INVALID_NULL_CMD_NAME); 524 return 0; 525 } 526 527 if (!ssl_conf_cmd_skip_prefix(cctx, &cmd)) 528 return -2; 529 530 runcmd = ssl_conf_cmd_lookup(cctx, cmd); 531 532 if (runcmd) { 533 int rv; 534 if (value == NULL) 535 return -3; 536 rv = runcmd->cmd(cctx, value); 537 if (rv > 0) 538 return 2; 539 if (rv == -2) 540 return -2; 541 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) { 542 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_BAD_VALUE); 543 ERR_add_error_data(4, "cmd=", cmd, ", value=", value); 544 } 545 return 0; 546 } 547 548 if (cctx->flags & SSL_CONF_FLAG_CMDLINE) { 549 if (ctrl_str_option(cctx, cmd)) 550 return 1; 551 } 552 553 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) { 554 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_UNKNOWN_CMD_NAME); 555 ERR_add_error_data(2, "cmd=", cmd); 556 } 557 558 return -2; 559 } 560 561 int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv) 562 { 563 int rv; 564 const char *arg = NULL, *argn; 565 if (pargc && *pargc == 0) 566 return 0; 567 if (!pargc || *pargc > 0) 568 arg = **pargv; 569 if (arg == NULL) 570 return 0; 571 if (!pargc || *pargc > 1) 572 argn = (*pargv)[1]; 573 else 574 argn = NULL; 575 cctx->flags &= ~SSL_CONF_FLAG_FILE; 576 cctx->flags |= SSL_CONF_FLAG_CMDLINE; 577 rv = SSL_CONF_cmd(cctx, arg, argn); 578 if (rv > 0) { 579 /* Success: update pargc, pargv */ 580 (*pargv) += rv; 581 if (pargc) 582 (*pargc) -= rv; 583 return rv; 584 } 585 /* Unknown switch: indicate no arguments processed */ 586 if (rv == -2) 587 return 0; 588 /* Some error occurred processing command, return fatal error */ 589 if (rv == 0) 590 return -1; 591 return rv; 592 } 593 594 int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd) 595 { 596 if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) { 597 const ssl_conf_cmd_tbl *runcmd; 598 runcmd = ssl_conf_cmd_lookup(cctx, cmd); 599 if (runcmd) 600 return runcmd->value_type; 601 } 602 return SSL_CONF_TYPE_UNKNOWN; 603 } 604 605 SSL_CONF_CTX *SSL_CONF_CTX_new(void) 606 { 607 SSL_CONF_CTX *ret; 608 ret = OPENSSL_malloc(sizeof(SSL_CONF_CTX)); 609 if (ret) { 610 ret->flags = 0; 611 ret->prefix = NULL; 612 ret->prefixlen = 0; 613 ret->ssl = NULL; 614 ret->ctx = NULL; 615 ret->poptions = NULL; 616 ret->pcert_flags = NULL; 617 ret->tbl = NULL; 618 ret->ntbl = 0; 619 } 620 return ret; 621 } 622 623 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx) 624 { 625 return 1; 626 } 627 628 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx) 629 { 630 if (cctx) { 631 if (cctx->prefix) 632 OPENSSL_free(cctx->prefix); 633 OPENSSL_free(cctx); 634 } 635 } 636 637 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags) 638 { 639 cctx->flags |= flags; 640 return cctx->flags; 641 } 642 643 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags) 644 { 645 cctx->flags &= ~flags; 646 return cctx->flags; 647 } 648 649 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre) 650 { 651 char *tmp = NULL; 652 if (pre) { 653 tmp = BUF_strdup(pre); 654 if (tmp == NULL) 655 return 0; 656 } 657 if (cctx->prefix) 658 OPENSSL_free(cctx->prefix); 659 cctx->prefix = tmp; 660 if (tmp) 661 cctx->prefixlen = strlen(tmp); 662 else 663 cctx->prefixlen = 0; 664 return 1; 665 } 666 667 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl) 668 { 669 cctx->ssl = ssl; 670 cctx->ctx = NULL; 671 if (ssl) { 672 cctx->poptions = &ssl->options; 673 cctx->pcert_flags = &ssl->cert->cert_flags; 674 } else { 675 cctx->poptions = NULL; 676 cctx->pcert_flags = NULL; 677 } 678 } 679 680 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx) 681 { 682 cctx->ctx = ctx; 683 cctx->ssl = NULL; 684 if (ctx) { 685 cctx->poptions = &ctx->options; 686 cctx->pcert_flags = &ctx->cert->cert_flags; 687 } else { 688 cctx->poptions = NULL; 689 cctx->pcert_flags = NULL; 690 } 691 } 692