/* $OpenBSD: s3_lib.c,v 1.257 2024/07/23 14:40:53 jsing Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. * * Portions of the attached software ("Contribution") are developed by * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. * * The Contribution is licensed pursuant to the OpenSSL open source * license provided above. * * ECC cipher suite support in OpenSSL originally written by * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ /* ==================================================================== * Copyright 2005 Nokia. All rights reserved. * * The portions of the attached software ("Contribution") is developed by * Nokia Corporation and is licensed pursuant to the OpenSSL open source * license. * * The Contribution, originally written by Mika Kousa and Pasi Eronen of * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites * support (see RFC 4279) to OpenSSL. * * No patent licenses or other rights except those expressly stated in * the OpenSSL open source license shall be deemed granted or received * expressly, by implication, estoppel, or otherwise. * * No assurances are provided by Nokia that the Contribution does not * infringe the patent or other intellectual property rights of any third * party or that the license provides you with all the necessary rights * to make use of the Contribution. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR * OTHERWISE. */ #include #include #include #include #include #include #include #include #include #include "bytestring.h" #include "dtls_local.h" #include "ssl_local.h" #include "ssl_sigalgs.h" #include "ssl_tlsext.h" #include "tls_content.h" #define SSL3_NUM_CIPHERS (sizeof(ssl3_ciphers) / sizeof(SSL_CIPHER)) /* list of available SSLv3 ciphers (sorted by id) */ const SSL_CIPHER ssl3_ciphers[] = { /* * SSLv3 RSA cipher suites (RFC 6101, appendix A.6). */ { .value = 0x0001, .name = SSL3_TXT_RSA_NULL_MD5, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_MD5, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0x0002, .name = SSL3_TXT_RSA_NULL_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0x0004, .name = SSL3_TXT_RSA_RC4_128_MD5, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_MD5, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0005, .name = SSL3_TXT_RSA_RC4_128_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x000a, .name = SSL3_TXT_RSA_DES_192_CBC3_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, /* * SSLv3 DHE cipher suites (RFC 6101, appendix A.6). */ { .value = 0x0016, .name = SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, { .value = 0x0018, .name = SSL3_TXT_ADH_RC4_128_MD5, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_MD5, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x001b, .name = SSL3_TXT_ADH_DES_192_CBC_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_SSLV3, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, /* * TLSv1.0 AES cipher suites (RFC 3268). */ { .value = 0x002f, .name = TLS1_TXT_RSA_WITH_AES_128_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0033, .name = TLS1_TXT_DHE_RSA_WITH_AES_128_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0034, .name = TLS1_TXT_ADH_WITH_AES_128_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0035, .name = TLS1_TXT_RSA_WITH_AES_256_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x0039, .name = TLS1_TXT_DHE_RSA_WITH_AES_256_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x003a, .name = TLS1_TXT_ADH_WITH_AES_256_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, /* * TLSv1.2 RSA cipher suites (RFC 5246, appendix A.5). */ { .value = 0x003b, .name = TLS1_TXT_RSA_WITH_NULL_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0x003c, .name = TLS1_TXT_RSA_WITH_AES_128_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x003d, .name = TLS1_TXT_RSA_WITH_AES_256_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, #ifndef OPENSSL_NO_CAMELLIA /* * TLSv1.0 Camellia 128 bit cipher suites (RFC 4132). */ { .value = 0x0041, .name = TLS1_TXT_RSA_WITH_CAMELLIA_128_CBC_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0045, .name = TLS1_TXT_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x0046, .name = TLS1_TXT_ADH_WITH_CAMELLIA_128_CBC_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, #endif /* OPENSSL_NO_CAMELLIA */ /* * TLSv1.2 DHE cipher suites (RFC 5246, appendix A.5). */ { .value = 0x0067, .name = TLS1_TXT_DHE_RSA_WITH_AES_128_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x006b, .name = TLS1_TXT_DHE_RSA_WITH_AES_256_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x006c, .name = TLS1_TXT_ADH_WITH_AES_128_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x006d, .name = TLS1_TXT_ADH_WITH_AES_256_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, #ifndef OPENSSL_NO_CAMELLIA /* * TLSv1.0 Camellia 256 bit cipher suites (RFC 4132). */ { .value = 0x0084, .name = TLS1_TXT_RSA_WITH_CAMELLIA_256_CBC_SHA, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x0088, .name = TLS1_TXT_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x0089, .name = TLS1_TXT_ADH_WITH_CAMELLIA_256_CBC_SHA, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, #endif /* OPENSSL_NO_CAMELLIA */ /* * TLSv1.2 AES GCM cipher suites (RFC 5288). */ { .value = 0x009c, .name = TLS1_TXT_RSA_WITH_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x009d, .name = TLS1_TXT_RSA_WITH_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x009e, .name = TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x009f, .name = TLS1_TXT_DHE_RSA_WITH_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x00a6, .name = TLS1_TXT_ADH_WITH_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x00a7, .name = TLS1_TXT_ADH_WITH_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, #ifndef OPENSSL_NO_CAMELLIA /* * TLSv1.2 Camellia SHA-256 cipher suites (RFC 5932). */ { .value = 0x00ba, .name = TLS1_TXT_RSA_WITH_CAMELLIA_128_CBC_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x000be, .name = TLS1_TXT_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x00bf, .name = TLS1_TXT_ADH_WITH_CAMELLIA_128_CBC_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_CAMELLIA128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0x00c0, .name = TLS1_TXT_RSA_WITH_CAMELLIA_256_CBC_SHA256, .algorithm_mkey = SSL_kRSA, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x00c4, .name = TLS1_TXT_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0x00c5, .name = TLS1_TXT_ADH_WITH_CAMELLIA_256_CBC_SHA256, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_CAMELLIA256, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, #endif /* OPENSSL_NO_CAMELLIA */ #ifdef LIBRESSL_HAS_TLS1_3 /* * TLSv1.3 cipher suites (RFC 8446). */ { .value = 0x1301, .name = TLS1_3_RFC_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kTLS1_3, .algorithm_auth = SSL_aTLS1_3, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_3, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, /* XXX */ .strength_bits = 128, .alg_bits = 128, }, { .value = 0x1302, .name = TLS1_3_RFC_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kTLS1_3, .algorithm_auth = SSL_aTLS1_3, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_3, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, /* XXX */ .strength_bits = 256, .alg_bits = 256, }, { .value = 0x1303, .name = TLS1_3_RFC_CHACHA20_POLY1305_SHA256, .algorithm_mkey = SSL_kTLS1_3, .algorithm_auth = SSL_aTLS1_3, .algorithm_enc = SSL_CHACHA20POLY1305, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_3, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, /* XXX */ .strength_bits = 256, .alg_bits = 256, }, #endif /* * TLSv1.0 Elliptic Curve cipher suites (RFC 4492, section 6). */ { .value = 0xc006, .name = TLS1_TXT_ECDHE_ECDSA_WITH_NULL_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0xc007, .name = TLS1_TXT_ECDHE_ECDSA_WITH_RC4_128_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc008, .name = TLS1_TXT_ECDHE_ECDSA_WITH_DES_192_CBC3_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, { .value = 0xc009, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc00a, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xc010, .name = TLS1_TXT_ECDHE_RSA_WITH_NULL_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0xc011, .name = TLS1_TXT_ECDHE_RSA_WITH_RC4_128_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc012, .name = TLS1_TXT_ECDHE_RSA_WITH_DES_192_CBC3_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, { .value = 0xc013, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_128_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc014, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_256_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xc015, .name = TLS1_TXT_ECDH_anon_WITH_NULL_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_eNULL, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_STRONG_NONE, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 0, .alg_bits = 0, }, { .value = 0xc016, .name = TLS1_TXT_ECDH_anon_WITH_RC4_128_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_RC4, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_LOW, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc017, .name = TLS1_TXT_ECDH_anon_WITH_DES_192_CBC3_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_3DES, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_MEDIUM, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 112, .alg_bits = 168, }, { .value = 0xc018, .name = TLS1_TXT_ECDH_anon_WITH_AES_128_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc019, .name = TLS1_TXT_ECDH_anon_WITH_AES_256_CBC_SHA, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aNULL, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA1, .algorithm_ssl = SSL_TLSV1, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, /* * TLSv1.2 Elliptic Curve HMAC cipher suites (RFC 5289, section 3.1). */ { .value = 0xc023, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_SHA256, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc024, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_256_SHA384, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA384, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xc027, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_128_SHA256, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128, .algorithm_mac = SSL_SHA256, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc028, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_256_SHA384, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256, .algorithm_mac = SSL_SHA384, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, /* * TLSv1.2 Elliptic Curve GCM cipher suites (RFC 5289, section 3.2). */ { .value = 0xc02b, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc02c, .name = TLS1_TXT_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xc02f, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES128GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 128, .alg_bits = 128, }, { .value = 0xc030, .name = TLS1_TXT_ECDHE_RSA_WITH_AES_256_GCM_SHA384, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_AES256GCM, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA384, .strength_bits = 256, .alg_bits = 256, }, /* * TLSv1.2 ChaCha20-Poly1305 cipher suites (RFC 7905). */ { .value = 0xcca8, .name = TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CHACHA20POLY1305, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xcca9, .name = TLS1_TXT_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, .algorithm_mkey = SSL_kECDHE, .algorithm_auth = SSL_aECDSA, .algorithm_enc = SSL_CHACHA20POLY1305, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, { .value = 0xccaa, .name = TLS1_TXT_DHE_RSA_WITH_CHACHA20_POLY1305, .algorithm_mkey = SSL_kDHE, .algorithm_auth = SSL_aRSA, .algorithm_enc = SSL_CHACHA20POLY1305, .algorithm_mac = SSL_AEAD, .algorithm_ssl = SSL_TLSV1_2, .algo_strength = SSL_HIGH, .algorithm2 = SSL_HANDSHAKE_MAC_SHA256, .strength_bits = 256, .alg_bits = 256, }, }; int ssl3_num_ciphers(void) { return (SSL3_NUM_CIPHERS); } const SSL_CIPHER * ssl3_get_cipher_by_index(int idx) { if (idx < 0 || idx >= SSL3_NUM_CIPHERS) return NULL; return &ssl3_ciphers[idx]; } static int ssl3_cipher_value_cmp(const void *value, const void *cipher) { uint16_t a = *(const uint16_t *)value; uint16_t b = ((const SSL_CIPHER *)cipher)->value; return a < b ? -1 : a > b; } const SSL_CIPHER * ssl3_get_cipher_by_value(uint16_t value) { return bsearch(&value, ssl3_ciphers, SSL3_NUM_CIPHERS, sizeof(ssl3_ciphers[0]), ssl3_cipher_value_cmp); } int ssl3_pending(const SSL *s) { if (s->s3->rcontent == NULL) return 0; if (tls_content_type(s->s3->rcontent) != SSL3_RT_APPLICATION_DATA) return 0; return tls_content_remaining(s->s3->rcontent); } int ssl3_handshake_msg_hdr_len(SSL *s) { return (SSL_is_dtls(s) ? DTLS1_HM_HEADER_LENGTH : SSL3_HM_HEADER_LENGTH); } int ssl3_handshake_msg_start(SSL *s, CBB *handshake, CBB *body, uint8_t msg_type) { int ret = 0; if (!CBB_init(handshake, SSL3_RT_MAX_PLAIN_LENGTH)) goto err; if (!CBB_add_u8(handshake, msg_type)) goto err; if (SSL_is_dtls(s)) { unsigned char *data; if (!CBB_add_space(handshake, &data, DTLS1_HM_HEADER_LENGTH - SSL3_HM_HEADER_LENGTH)) goto err; } if (!CBB_add_u24_length_prefixed(handshake, body)) goto err; ret = 1; err: return (ret); } int ssl3_handshake_msg_finish(SSL *s, CBB *handshake) { unsigned char *data = NULL; size_t outlen; int ret = 0; if (!CBB_finish(handshake, &data, &outlen)) goto err; if (outlen > INT_MAX) goto err; if (!BUF_MEM_grow_clean(s->init_buf, outlen)) goto err; memcpy(s->init_buf->data, data, outlen); s->init_num = (int)outlen; s->init_off = 0; if (SSL_is_dtls(s)) { unsigned long len; uint8_t msg_type; CBS cbs; CBS_init(&cbs, data, outlen); if (!CBS_get_u8(&cbs, &msg_type)) goto err; len = outlen - ssl3_handshake_msg_hdr_len(s); dtls1_set_message_header(s, msg_type, len, 0, len); dtls1_buffer_message(s, 0); } ret = 1; err: free(data); return (ret); } int ssl3_handshake_write(SSL *s) { return ssl3_record_write(s, SSL3_RT_HANDSHAKE); } int ssl3_record_write(SSL *s, int type) { if (SSL_is_dtls(s)) return dtls1_do_write(s, type); return ssl3_do_write(s, type); } int ssl3_new(SSL *s) { if ((s->s3 = calloc(1, sizeof(*s->s3))) == NULL) return (0); s->method->ssl_clear(s); return (1); } void ssl3_free(SSL *s) { if (s == NULL) return; tls1_cleanup_key_block(s); ssl3_release_read_buffer(s); ssl3_release_write_buffer(s); tls_content_free(s->s3->rcontent); tls_buffer_free(s->s3->alert_fragment); tls_buffer_free(s->s3->handshake_fragment); freezero(s->s3->hs.sigalgs, s->s3->hs.sigalgs_len); sk_SSL_CIPHER_free(s->s3->hs.client_ciphers); sk_X509_pop_free(s->s3->hs.peer_certs, X509_free); sk_X509_pop_free(s->s3->hs.peer_certs_no_leaf, X509_free); sk_X509_pop_free(s->s3->hs.verified_chain, X509_free); tls_key_share_free(s->s3->hs.key_share); tls13_secrets_destroy(s->s3->hs.tls13.secrets); freezero(s->s3->hs.tls13.cookie, s->s3->hs.tls13.cookie_len); tls13_clienthello_hash_clear(&s->s3->hs.tls13); tls_buffer_free(s->s3->hs.tls13.quic_read_buffer); sk_X509_NAME_pop_free(s->s3->hs.tls12.ca_names, X509_NAME_free); tls1_transcript_free(s); tls1_transcript_hash_free(s); free(s->s3->alpn_selected); freezero(s->s3->peer_quic_transport_params, s->s3->peer_quic_transport_params_len); freezero(s->s3, sizeof(*s->s3)); s->s3 = NULL; } void ssl3_clear(SSL *s) { unsigned char *rp, *wp; size_t rlen, wlen; tls1_cleanup_key_block(s); sk_X509_NAME_pop_free(s->s3->hs.tls12.ca_names, X509_NAME_free); tls_buffer_free(s->s3->alert_fragment); s->s3->alert_fragment = NULL; tls_buffer_free(s->s3->handshake_fragment); s->s3->handshake_fragment = NULL; freezero(s->s3->hs.sigalgs, s->s3->hs.sigalgs_len); s->s3->hs.sigalgs = NULL; s->s3->hs.sigalgs_len = 0; sk_SSL_CIPHER_free(s->s3->hs.client_ciphers); s->s3->hs.client_ciphers = NULL; sk_X509_pop_free(s->s3->hs.peer_certs, X509_free); s->s3->hs.peer_certs = NULL; sk_X509_pop_free(s->s3->hs.peer_certs_no_leaf, X509_free); s->s3->hs.peer_certs_no_leaf = NULL; sk_X509_pop_free(s->s3->hs.verified_chain, X509_free); s->s3->hs.verified_chain = NULL; tls_key_share_free(s->s3->hs.key_share); s->s3->hs.key_share = NULL; tls13_secrets_destroy(s->s3->hs.tls13.secrets); s->s3->hs.tls13.secrets = NULL; freezero(s->s3->hs.tls13.cookie, s->s3->hs.tls13.cookie_len); s->s3->hs.tls13.cookie = NULL; s->s3->hs.tls13.cookie_len = 0; tls13_clienthello_hash_clear(&s->s3->hs.tls13); tls_buffer_free(s->s3->hs.tls13.quic_read_buffer); s->s3->hs.tls13.quic_read_buffer = NULL; s->s3->hs.tls13.quic_read_level = ssl_encryption_initial; s->s3->hs.tls13.quic_write_level = ssl_encryption_initial; s->s3->hs.extensions_seen = 0; rp = s->s3->rbuf.buf; wp = s->s3->wbuf.buf; rlen = s->s3->rbuf.len; wlen = s->s3->wbuf.len; tls_content_free(s->s3->rcontent); s->s3->rcontent = NULL; tls1_transcript_free(s); tls1_transcript_hash_free(s); free(s->s3->alpn_selected); s->s3->alpn_selected = NULL; s->s3->alpn_selected_len = 0; freezero(s->s3->peer_quic_transport_params, s->s3->peer_quic_transport_params_len); s->s3->peer_quic_transport_params = NULL; s->s3->peer_quic_transport_params_len = 0; memset(s->s3, 0, sizeof(*s->s3)); s->s3->rbuf.buf = rp; s->s3->wbuf.buf = wp; s->s3->rbuf.len = rlen; s->s3->wbuf.len = wlen; ssl_free_wbio_buffer(s); /* Not needed... */ s->s3->renegotiate = 0; s->s3->total_renegotiations = 0; s->s3->num_renegotiations = 0; s->s3->in_read_app_data = 0; s->packet_length = 0; s->version = TLS1_2_VERSION; s->s3->hs.state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); } long _SSL_get_shared_group(SSL *s, long n) { size_t count; int nid; /* OpenSSL document that they return -1 for clients. They return 0. */ if (!s->server) return 0; if (n == -1) { if (!tls1_count_shared_groups(s, &count)) return 0; if (count > LONG_MAX) count = LONG_MAX; return count; } /* Undocumented special case added for Suite B profile support. */ if (n == -2) n = 0; if (n < 0) return 0; if (!tls1_get_shared_group_by_index(s, n, &nid)) return NID_undef; return nid; } long _SSL_get_peer_tmp_key(SSL *s, EVP_PKEY **key) { EVP_PKEY *pkey = NULL; int ret = 0; *key = NULL; if (s->s3->hs.key_share == NULL) goto err; if ((pkey = EVP_PKEY_new()) == NULL) goto err; if (!tls_key_share_peer_pkey(s->s3->hs.key_share, pkey)) goto err; *key = pkey; pkey = NULL; ret = 1; err: EVP_PKEY_free(pkey); return (ret); } static int _SSL_session_reused(SSL *s) { return s->hit; } static int _SSL_num_renegotiations(SSL *s) { return s->s3->num_renegotiations; } static int _SSL_clear_num_renegotiations(SSL *s) { int renegs; renegs = s->s3->num_renegotiations; s->s3->num_renegotiations = 0; return renegs; } static int _SSL_total_renegotiations(SSL *s) { return s->s3->total_renegotiations; } static int _SSL_set_tmp_dh(SSL *s, DH *dh) { DH *dhe_params; if (dh == NULL) { SSLerror(s, ERR_R_PASSED_NULL_PARAMETER); return 0; } if (!ssl_security_dh(s, dh)) { SSLerror(s, SSL_R_DH_KEY_TOO_SMALL); return 0; } if ((dhe_params = DHparams_dup(dh)) == NULL) { SSLerror(s, ERR_R_DH_LIB); return 0; } DH_free(s->cert->dhe_params); s->cert->dhe_params = dhe_params; return 1; } static int _SSL_set_dh_auto(SSL *s, int state) { s->cert->dhe_params_auto = state; return 1; } static int _SSL_set_tmp_ecdh(SSL *s, EC_KEY *ecdh) { const EC_GROUP *group; int nid; if (ecdh == NULL) return 0; if ((group = EC_KEY_get0_group(ecdh)) == NULL) return 0; nid = EC_GROUP_get_curve_name(group); return SSL_set1_groups(s, &nid, 1); } static int _SSL_set_ecdh_auto(SSL *s, int state) { return 1; } static int _SSL_set_tlsext_host_name(SSL *s, const char *name) { int is_ip; CBS cbs; free(s->tlsext_hostname); s->tlsext_hostname = NULL; if (name == NULL) return 1; CBS_init(&cbs, name, strlen(name)); if (!tlsext_sni_is_valid_hostname(&cbs, &is_ip)) { SSLerror(s, SSL_R_SSL3_EXT_INVALID_SERVERNAME); return 0; } if ((s->tlsext_hostname = strdup(name)) == NULL) { SSLerror(s, ERR_R_INTERNAL_ERROR); return 0; } return 1; } static int _SSL_set_tlsext_debug_arg(SSL *s, void *arg) { s->tlsext_debug_arg = arg; return 1; } static int _SSL_get_tlsext_status_type(SSL *s) { return s->tlsext_status_type; } static int _SSL_set_tlsext_status_type(SSL *s, int type) { s->tlsext_status_type = type; return 1; } static int _SSL_get_tlsext_status_exts(SSL *s, STACK_OF(X509_EXTENSION) **exts) { *exts = s->tlsext_ocsp_exts; return 1; } static int _SSL_set_tlsext_status_exts(SSL *s, STACK_OF(X509_EXTENSION) *exts) { /* XXX - leak... */ s->tlsext_ocsp_exts = exts; return 1; } static int _SSL_get_tlsext_status_ids(SSL *s, STACK_OF(OCSP_RESPID) **ids) { *ids = s->tlsext_ocsp_ids; return 1; } static int _SSL_set_tlsext_status_ids(SSL *s, STACK_OF(OCSP_RESPID) *ids) { /* XXX - leak... */ s->tlsext_ocsp_ids = ids; return 1; } static int _SSL_get_tlsext_status_ocsp_resp(SSL *s, unsigned char **resp) { if (s->tlsext_ocsp_resp != NULL && s->tlsext_ocsp_resp_len < INT_MAX) { *resp = s->tlsext_ocsp_resp; return (int)s->tlsext_ocsp_resp_len; } *resp = NULL; return -1; } static int _SSL_set_tlsext_status_ocsp_resp(SSL *s, unsigned char *resp, int resp_len) { free(s->tlsext_ocsp_resp); s->tlsext_ocsp_resp = NULL; s->tlsext_ocsp_resp_len = 0; if (resp_len < 0) return 0; s->tlsext_ocsp_resp = resp; s->tlsext_ocsp_resp_len = (size_t)resp_len; return 1; } int SSL_set0_chain(SSL *ssl, STACK_OF(X509) *chain) { return ssl_cert_set0_chain(NULL, ssl, chain); } LSSL_ALIAS(SSL_set0_chain); int SSL_set1_chain(SSL *ssl, STACK_OF(X509) *chain) { return ssl_cert_set1_chain(NULL, ssl, chain); } LSSL_ALIAS(SSL_set1_chain); int SSL_add0_chain_cert(SSL *ssl, X509 *x509) { return ssl_cert_add0_chain_cert(NULL, ssl, x509); } LSSL_ALIAS(SSL_add0_chain_cert); int SSL_add1_chain_cert(SSL *ssl, X509 *x509) { return ssl_cert_add1_chain_cert(NULL, ssl, x509); } LSSL_ALIAS(SSL_add1_chain_cert); int SSL_get0_chain_certs(const SSL *ssl, STACK_OF(X509) **out_chain) { *out_chain = NULL; if (ssl->cert->key != NULL) *out_chain = ssl->cert->key->chain; return 1; } LSSL_ALIAS(SSL_get0_chain_certs); int SSL_clear_chain_certs(SSL *ssl) { return ssl_cert_set0_chain(NULL, ssl, NULL); } LSSL_ALIAS(SSL_clear_chain_certs); int SSL_set1_groups(SSL *s, const int *groups, size_t groups_len) { return tls1_set_groups(&s->tlsext_supportedgroups, &s->tlsext_supportedgroups_length, groups, groups_len); } LSSL_ALIAS(SSL_set1_groups); int SSL_set1_groups_list(SSL *s, const char *groups) { return tls1_set_group_list(&s->tlsext_supportedgroups, &s->tlsext_supportedgroups_length, groups); } LSSL_ALIAS(SSL_set1_groups_list); static int _SSL_get_signature_nid(SSL *s, int *nid) { const struct ssl_sigalg *sigalg; if ((sigalg = s->s3->hs.our_sigalg) == NULL) return 0; *nid = EVP_MD_type(sigalg->md()); return 1; } static int _SSL_get_peer_signature_nid(SSL *s, int *nid) { const struct ssl_sigalg *sigalg; if ((sigalg = s->s3->hs.peer_sigalg) == NULL) return 0; *nid = EVP_MD_type(sigalg->md()); return 1; } int SSL_get_signature_type_nid(const SSL *s, int *nid) { const struct ssl_sigalg *sigalg; if ((sigalg = s->s3->hs.our_sigalg) == NULL) return 0; *nid = sigalg->key_type; if (sigalg->key_type == EVP_PKEY_RSA && (sigalg->flags & SIGALG_FLAG_RSA_PSS)) *nid = EVP_PKEY_RSA_PSS; return 1; } LSSL_ALIAS(SSL_get_signature_type_nid); int SSL_get_peer_signature_type_nid(const SSL *s, int *nid) { const struct ssl_sigalg *sigalg; if ((sigalg = s->s3->hs.peer_sigalg) == NULL) return 0; *nid = sigalg->key_type; if (sigalg->key_type == EVP_PKEY_RSA && (sigalg->flags & SIGALG_FLAG_RSA_PSS)) *nid = EVP_PKEY_RSA_PSS; return 1; } LSSL_ALIAS(SSL_get_peer_signature_type_nid); long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg) { switch (cmd) { case SSL_CTRL_GET_SESSION_REUSED: return _SSL_session_reused(s); case SSL_CTRL_GET_NUM_RENEGOTIATIONS: return _SSL_num_renegotiations(s); case SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS: return _SSL_clear_num_renegotiations(s); case SSL_CTRL_GET_TOTAL_RENEGOTIATIONS: return _SSL_total_renegotiations(s); case SSL_CTRL_SET_TMP_DH: return _SSL_set_tmp_dh(s, parg); case SSL_CTRL_SET_TMP_DH_CB: SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_DH_AUTO: return _SSL_set_dh_auto(s, larg); case SSL_CTRL_SET_TMP_ECDH: return _SSL_set_tmp_ecdh(s, parg); case SSL_CTRL_SET_TMP_ECDH_CB: SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_ECDH_AUTO: return _SSL_set_ecdh_auto(s, larg); case SSL_CTRL_SET_TLSEXT_HOSTNAME: if (larg != TLSEXT_NAMETYPE_host_name) { SSLerror(s, SSL_R_SSL3_EXT_INVALID_SERVERNAME_TYPE); return 0; } return _SSL_set_tlsext_host_name(s, parg); case SSL_CTRL_SET_TLSEXT_DEBUG_ARG: return _SSL_set_tlsext_debug_arg(s, parg); case SSL_CTRL_GET_TLSEXT_STATUS_REQ_TYPE: return _SSL_get_tlsext_status_type(s); case SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE: return _SSL_set_tlsext_status_type(s, larg); case SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS: return _SSL_get_tlsext_status_exts(s, parg); case SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS: return _SSL_set_tlsext_status_exts(s, parg); case SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS: return _SSL_get_tlsext_status_ids(s, parg); case SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS: return _SSL_set_tlsext_status_ids(s, parg); case SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP: return _SSL_get_tlsext_status_ocsp_resp(s, parg); case SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP: return _SSL_set_tlsext_status_ocsp_resp(s, parg, larg); case SSL_CTRL_CHAIN: if (larg == 0) return SSL_set0_chain(s, (STACK_OF(X509) *)parg); else return SSL_set1_chain(s, (STACK_OF(X509) *)parg); case SSL_CTRL_CHAIN_CERT: if (larg == 0) return SSL_add0_chain_cert(s, (X509 *)parg); else return SSL_add1_chain_cert(s, (X509 *)parg); case SSL_CTRL_GET_CHAIN_CERTS: return SSL_get0_chain_certs(s, (STACK_OF(X509) **)parg); case SSL_CTRL_SET_GROUPS: return SSL_set1_groups(s, parg, larg); case SSL_CTRL_SET_GROUPS_LIST: return SSL_set1_groups_list(s, parg); case SSL_CTRL_GET_SHARED_GROUP: return _SSL_get_shared_group(s, larg); /* XXX - rename to SSL_CTRL_GET_PEER_TMP_KEY and remove server check. */ case SSL_CTRL_GET_SERVER_TMP_KEY: if (s->server != 0) return 0; return _SSL_get_peer_tmp_key(s, parg); case SSL_CTRL_GET_MIN_PROTO_VERSION: return SSL_get_min_proto_version(s); case SSL_CTRL_GET_MAX_PROTO_VERSION: return SSL_get_max_proto_version(s); case SSL_CTRL_SET_MIN_PROTO_VERSION: if (larg < 0 || larg > UINT16_MAX) return 0; return SSL_set_min_proto_version(s, larg); case SSL_CTRL_SET_MAX_PROTO_VERSION: if (larg < 0 || larg > UINT16_MAX) return 0; return SSL_set_max_proto_version(s, larg); case SSL_CTRL_GET_SIGNATURE_NID: return _SSL_get_signature_nid(s, parg); case SSL_CTRL_GET_PEER_SIGNATURE_NID: return _SSL_get_peer_signature_nid(s, parg); /* * Legacy controls that should eventually be removed. */ case SSL_CTRL_GET_CLIENT_CERT_REQUEST: return 0; case SSL_CTRL_GET_FLAGS: return (int)(s->s3->flags); case SSL_CTRL_NEED_TMP_RSA: return 0; case SSL_CTRL_SET_TMP_RSA: case SSL_CTRL_SET_TMP_RSA_CB: SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; } return 0; } long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) { switch (cmd) { case SSL_CTRL_SET_TMP_RSA_CB: SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_TMP_DH_CB: s->cert->dhe_params_cb = (DH *(*)(SSL *, int, int))fp; return 1; case SSL_CTRL_SET_TMP_ECDH_CB: return 1; case SSL_CTRL_SET_TLSEXT_DEBUG_CB: s->tlsext_debug_cb = (void (*)(SSL *, int , int, unsigned char *, int, void *))fp; return 1; } return 0; } static int _SSL_CTX_set_tmp_dh(SSL_CTX *ctx, DH *dh) { DH *dhe_params; if (dh == NULL) { SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); return 0; } if (!ssl_ctx_security_dh(ctx, dh)) { SSLerrorx(SSL_R_DH_KEY_TOO_SMALL); return 0; } if ((dhe_params = DHparams_dup(dh)) == NULL) { SSLerrorx(ERR_R_DH_LIB); return 0; } DH_free(ctx->cert->dhe_params); ctx->cert->dhe_params = dhe_params; return 1; } static int _SSL_CTX_set_dh_auto(SSL_CTX *ctx, int state) { ctx->cert->dhe_params_auto = state; return 1; } static int _SSL_CTX_set_tmp_ecdh(SSL_CTX *ctx, EC_KEY *ecdh) { const EC_GROUP *group; int nid; if (ecdh == NULL) return 0; if ((group = EC_KEY_get0_group(ecdh)) == NULL) return 0; nid = EC_GROUP_get_curve_name(group); return SSL_CTX_set1_groups(ctx, &nid, 1); } static int _SSL_CTX_set_ecdh_auto(SSL_CTX *ctx, int state) { return 1; } static int _SSL_CTX_set_tlsext_servername_arg(SSL_CTX *ctx, void *arg) { ctx->tlsext_servername_arg = arg; return 1; } static int _SSL_CTX_get_tlsext_ticket_keys(SSL_CTX *ctx, unsigned char *keys, int keys_len) { if (keys == NULL) return 48; if (keys_len != 48) { SSLerrorx(SSL_R_INVALID_TICKET_KEYS_LENGTH); return 0; } memcpy(keys, ctx->tlsext_tick_key_name, 16); memcpy(keys + 16, ctx->tlsext_tick_hmac_key, 16); memcpy(keys + 32, ctx->tlsext_tick_aes_key, 16); return 1; } static int _SSL_CTX_set_tlsext_ticket_keys(SSL_CTX *ctx, unsigned char *keys, int keys_len) { if (keys == NULL) return 48; if (keys_len != 48) { SSLerrorx(SSL_R_INVALID_TICKET_KEYS_LENGTH); return 0; } memcpy(ctx->tlsext_tick_key_name, keys, 16); memcpy(ctx->tlsext_tick_hmac_key, keys + 16, 16); memcpy(ctx->tlsext_tick_aes_key, keys + 32, 16); return 1; } static int _SSL_CTX_get_tlsext_status_arg(SSL_CTX *ctx, void **arg) { *arg = ctx->tlsext_status_arg; return 1; } static int _SSL_CTX_set_tlsext_status_arg(SSL_CTX *ctx, void *arg) { ctx->tlsext_status_arg = arg; return 1; } int SSL_CTX_set0_chain(SSL_CTX *ctx, STACK_OF(X509) *chain) { return ssl_cert_set0_chain(ctx, NULL, chain); } LSSL_ALIAS(SSL_CTX_set0_chain); int SSL_CTX_set1_chain(SSL_CTX *ctx, STACK_OF(X509) *chain) { return ssl_cert_set1_chain(ctx, NULL, chain); } LSSL_ALIAS(SSL_CTX_set1_chain); int SSL_CTX_add0_chain_cert(SSL_CTX *ctx, X509 *x509) { return ssl_cert_add0_chain_cert(ctx, NULL, x509); } LSSL_ALIAS(SSL_CTX_add0_chain_cert); int SSL_CTX_add1_chain_cert(SSL_CTX *ctx, X509 *x509) { return ssl_cert_add1_chain_cert(ctx, NULL, x509); } LSSL_ALIAS(SSL_CTX_add1_chain_cert); int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx, STACK_OF(X509) **out_chain) { *out_chain = NULL; if (ctx->cert->key != NULL) *out_chain = ctx->cert->key->chain; return 1; } LSSL_ALIAS(SSL_CTX_get0_chain_certs); int SSL_CTX_clear_chain_certs(SSL_CTX *ctx) { return ssl_cert_set0_chain(ctx, NULL, NULL); } LSSL_ALIAS(SSL_CTX_clear_chain_certs); static int _SSL_CTX_add_extra_chain_cert(SSL_CTX *ctx, X509 *cert) { if (ctx->extra_certs == NULL) { if ((ctx->extra_certs = sk_X509_new_null()) == NULL) return 0; } if (sk_X509_push(ctx->extra_certs, cert) == 0) return 0; return 1; } static int _SSL_CTX_get_extra_chain_certs(SSL_CTX *ctx, STACK_OF(X509) **certs) { *certs = ctx->extra_certs; if (*certs == NULL) *certs = ctx->cert->key->chain; return 1; } static int _SSL_CTX_get_extra_chain_certs_only(SSL_CTX *ctx, STACK_OF(X509) **certs) { *certs = ctx->extra_certs; return 1; } static int _SSL_CTX_clear_extra_chain_certs(SSL_CTX *ctx) { sk_X509_pop_free(ctx->extra_certs, X509_free); ctx->extra_certs = NULL; return 1; } int SSL_CTX_set1_groups(SSL_CTX *ctx, const int *groups, size_t groups_len) { return tls1_set_groups(&ctx->tlsext_supportedgroups, &ctx->tlsext_supportedgroups_length, groups, groups_len); } LSSL_ALIAS(SSL_CTX_set1_groups); int SSL_CTX_set1_groups_list(SSL_CTX *ctx, const char *groups) { return tls1_set_group_list(&ctx->tlsext_supportedgroups, &ctx->tlsext_supportedgroups_length, groups); } LSSL_ALIAS(SSL_CTX_set1_groups_list); long ssl3_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) { switch (cmd) { case SSL_CTRL_SET_TMP_DH: return _SSL_CTX_set_tmp_dh(ctx, parg); case SSL_CTRL_SET_TMP_DH_CB: SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_DH_AUTO: return _SSL_CTX_set_dh_auto(ctx, larg); case SSL_CTRL_SET_TMP_ECDH: return _SSL_CTX_set_tmp_ecdh(ctx, parg); case SSL_CTRL_SET_TMP_ECDH_CB: SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_ECDH_AUTO: return _SSL_CTX_set_ecdh_auto(ctx, larg); case SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG: return _SSL_CTX_set_tlsext_servername_arg(ctx, parg); case SSL_CTRL_GET_TLSEXT_TICKET_KEYS: return _SSL_CTX_get_tlsext_ticket_keys(ctx, parg, larg); case SSL_CTRL_SET_TLSEXT_TICKET_KEYS: return _SSL_CTX_set_tlsext_ticket_keys(ctx, parg, larg); case SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG: return _SSL_CTX_get_tlsext_status_arg(ctx, parg); case SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG: return _SSL_CTX_set_tlsext_status_arg(ctx, parg); case SSL_CTRL_CHAIN: if (larg == 0) return SSL_CTX_set0_chain(ctx, (STACK_OF(X509) *)parg); else return SSL_CTX_set1_chain(ctx, (STACK_OF(X509) *)parg); case SSL_CTRL_CHAIN_CERT: if (larg == 0) return SSL_CTX_add0_chain_cert(ctx, (X509 *)parg); else return SSL_CTX_add1_chain_cert(ctx, (X509 *)parg); case SSL_CTRL_GET_CHAIN_CERTS: return SSL_CTX_get0_chain_certs(ctx, (STACK_OF(X509) **)parg); case SSL_CTRL_EXTRA_CHAIN_CERT: return _SSL_CTX_add_extra_chain_cert(ctx, parg); case SSL_CTRL_GET_EXTRA_CHAIN_CERTS: if (larg == 0) return _SSL_CTX_get_extra_chain_certs(ctx, parg); else return _SSL_CTX_get_extra_chain_certs_only(ctx, parg); case SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS: return _SSL_CTX_clear_extra_chain_certs(ctx); case SSL_CTRL_SET_GROUPS: return SSL_CTX_set1_groups(ctx, parg, larg); case SSL_CTRL_SET_GROUPS_LIST: return SSL_CTX_set1_groups_list(ctx, parg); case SSL_CTRL_GET_MIN_PROTO_VERSION: return SSL_CTX_get_min_proto_version(ctx); case SSL_CTRL_GET_MAX_PROTO_VERSION: return SSL_CTX_get_max_proto_version(ctx); case SSL_CTRL_SET_MIN_PROTO_VERSION: if (larg < 0 || larg > UINT16_MAX) return 0; return SSL_CTX_set_min_proto_version(ctx, larg); case SSL_CTRL_SET_MAX_PROTO_VERSION: if (larg < 0 || larg > UINT16_MAX) return 0; return SSL_CTX_set_max_proto_version(ctx, larg); /* * Legacy controls that should eventually be removed. */ case SSL_CTRL_NEED_TMP_RSA: return 0; case SSL_CTRL_SET_TMP_RSA: case SSL_CTRL_SET_TMP_RSA_CB: SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; } return 0; } long ssl3_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) { switch (cmd) { case SSL_CTRL_SET_TMP_RSA_CB: SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; case SSL_CTRL_SET_TMP_DH_CB: ctx->cert->dhe_params_cb = (DH *(*)(SSL *, int, int))fp; return 1; case SSL_CTRL_SET_TMP_ECDH_CB: return 1; case SSL_CTRL_SET_TLSEXT_SERVERNAME_CB: ctx->tlsext_servername_callback = (int (*)(SSL *, int *, void *))fp; return 1; case SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB: *(int (**)(SSL *, void *))fp = ctx->tlsext_status_cb; return 1; case SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB: ctx->tlsext_status_cb = (int (*)(SSL *, void *))fp; return 1; case SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB: ctx->tlsext_ticket_key_cb = (int (*)(SSL *, unsigned char *, unsigned char *, EVP_CIPHER_CTX *, HMAC_CTX *, int))fp; return 1; } return 0; } SSL_CIPHER * ssl3_choose_cipher(SSL *s, STACK_OF(SSL_CIPHER) *clnt, STACK_OF(SSL_CIPHER) *srvr) { unsigned long alg_k, alg_a, mask_k, mask_a; STACK_OF(SSL_CIPHER) *prio, *allow; SSL_CIPHER *c, *ret = NULL; int can_use_ecc; int i, ii, nid, ok; SSL_CERT *cert; /* Let's see which ciphers we can support */ cert = s->cert; can_use_ecc = tls1_get_supported_group(s, &nid); /* * Do not set the compare functions, because this may lead to a * reordering by "id". We want to keep the original ordering. * We may pay a price in performance during sk_SSL_CIPHER_find(), * but would have to pay with the price of sk_SSL_CIPHER_dup(). */ if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) { prio = srvr; allow = clnt; } else { prio = clnt; allow = srvr; } for (i = 0; i < sk_SSL_CIPHER_num(prio); i++) { c = sk_SSL_CIPHER_value(prio, i); /* Skip TLS v1.2 only ciphersuites if not supported. */ if ((c->algorithm_ssl & SSL_TLSV1_2) && !SSL_USE_TLS1_2_CIPHERS(s)) continue; /* Skip TLS v1.3 only ciphersuites if not supported. */ if ((c->algorithm_ssl & SSL_TLSV1_3) && !SSL_USE_TLS1_3_CIPHERS(s)) continue; /* If TLS v1.3, only allow TLS v1.3 ciphersuites. */ if (SSL_USE_TLS1_3_CIPHERS(s) && !(c->algorithm_ssl & SSL_TLSV1_3)) continue; if (!ssl_security_shared_cipher(s, c)) continue; ssl_set_cert_masks(cert, c); mask_k = cert->mask_k; mask_a = cert->mask_a; alg_k = c->algorithm_mkey; alg_a = c->algorithm_auth; ok = (alg_k & mask_k) && (alg_a & mask_a); /* * If we are considering an ECC cipher suite that uses our * certificate check it. */ if (alg_a & SSL_aECDSA) ok = ok && tls1_check_ec_server_key(s); /* * If we are considering an ECC cipher suite that uses * an ephemeral EC key check it. */ if (alg_k & SSL_kECDHE) ok = ok && can_use_ecc; if (!ok) continue; ii = sk_SSL_CIPHER_find(allow, c); if (ii >= 0) { ret = sk_SSL_CIPHER_value(allow, ii); break; } } return (ret); } #define SSL3_CT_RSA_SIGN 1 #define SSL3_CT_RSA_FIXED_DH 3 #define SSL3_CT_ECDSA_SIGN 64 int ssl3_get_req_cert_types(SSL *s, CBB *cbb) { unsigned long alg_k; alg_k = s->s3->hs.cipher->algorithm_mkey; if ((alg_k & SSL_kDHE) != 0) { if (!CBB_add_u8(cbb, SSL3_CT_RSA_FIXED_DH)) return 0; } if (!CBB_add_u8(cbb, SSL3_CT_RSA_SIGN)) return 0; /* * ECDSA certs can be used with RSA cipher suites as well * so we don't need to check for SSL_kECDH or SSL_kECDHE. */ if (!CBB_add_u8(cbb, SSL3_CT_ECDSA_SIGN)) return 0; return 1; } int ssl3_shutdown(SSL *s) { int ret; /* * Don't do anything much if we have not done the handshake or * we don't want to send messages :-) */ if ((s->quiet_shutdown) || (s->s3->hs.state == SSL_ST_BEFORE)) { s->shutdown = (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); return (1); } if (!(s->shutdown & SSL_SENT_SHUTDOWN)) { s->shutdown|=SSL_SENT_SHUTDOWN; ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_CLOSE_NOTIFY); /* * Our shutdown alert has been sent now, and if it still needs * to be written, s->s3->alert_dispatch will be true */ if (s->s3->alert_dispatch) return (-1); /* return WANT_WRITE */ } else if (s->s3->alert_dispatch) { /* resend it if not sent */ ret = ssl3_dispatch_alert(s); if (ret == -1) { /* * We only get to return -1 here the 2nd/Nth * invocation, we must have already signalled * return 0 upon a previous invoation, * return WANT_WRITE */ return (ret); } } else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN)) { /* If we are waiting for a close from our peer, we are closed */ s->method->ssl_read_bytes(s, 0, NULL, 0, 0); if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN)) { return (-1); /* return WANT_READ */ } } if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) && !s->s3->alert_dispatch) return (1); else return (0); } int ssl3_write(SSL *s, const void *buf, int len) { errno = 0; if (s->s3->renegotiate) ssl3_renegotiate_check(s); return s->method->ssl_write_bytes(s, SSL3_RT_APPLICATION_DATA, buf, len); } static int ssl3_read_internal(SSL *s, void *buf, int len, int peek) { int ret; errno = 0; if (s->s3->renegotiate) ssl3_renegotiate_check(s); s->s3->in_read_app_data = 1; ret = s->method->ssl_read_bytes(s, SSL3_RT_APPLICATION_DATA, buf, len, peek); if ((ret == -1) && (s->s3->in_read_app_data == 2)) { /* * ssl3_read_bytes decided to call s->handshake_func, * which called ssl3_read_bytes to read handshake data. * However, ssl3_read_bytes actually found application data * and thinks that application data makes sense here; so disable * handshake processing and try to read application data again. */ s->in_handshake++; ret = s->method->ssl_read_bytes(s, SSL3_RT_APPLICATION_DATA, buf, len, peek); s->in_handshake--; } else s->s3->in_read_app_data = 0; return (ret); } int ssl3_read(SSL *s, void *buf, int len) { return ssl3_read_internal(s, buf, len, 0); } int ssl3_peek(SSL *s, void *buf, int len) { return ssl3_read_internal(s, buf, len, 1); } int ssl3_renegotiate(SSL *s) { if (s->handshake_func == NULL) return 1; if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) return 0; s->s3->renegotiate = 1; return 1; } int ssl3_renegotiate_check(SSL *s) { if (!s->s3->renegotiate) return 0; if (SSL_in_init(s) || s->s3->rbuf.left != 0 || s->s3->wbuf.left != 0) return 0; s->s3->hs.state = SSL_ST_RENEGOTIATE; s->s3->renegotiate = 0; s->s3->num_renegotiations++; s->s3->total_renegotiations++; return 1; }