diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/evp/p_lib.c')
| -rw-r--r-- | deps/openssl/openssl/crypto/evp/p_lib.c | 290 |
1 files changed, 166 insertions, 124 deletions
diff --git a/deps/openssl/openssl/crypto/evp/p_lib.c b/deps/openssl/openssl/crypto/evp/p_lib.c index 545d04fd77..d7372aa129 100644 --- a/deps/openssl/openssl/crypto/evp/p_lib.c +++ b/deps/openssl/openssl/crypto/evp/p_lib.c @@ -1,94 +1,45 @@ -/* crypto/evp/p_lib.c */ -/* 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. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * 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.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include <stdio.h> -#include "cryptlib.h" +#include "internal/cryptlib.h" #include <openssl/bn.h> #include <openssl/err.h> #include <openssl/objects.h> #include <openssl/evp.h> -#include <openssl/asn1_mac.h> #include <openssl/x509.h> -#ifndef OPENSSL_NO_RSA -# include <openssl/rsa.h> -#endif -#ifndef OPENSSL_NO_DSA -# include <openssl/dsa.h> -#endif -#ifndef OPENSSL_NO_DH -# include <openssl/dh.h> -#endif +#include <openssl/rsa.h> +#include <openssl/dsa.h> +#include <openssl/dh.h> +#include <openssl/engine.h> -#ifndef OPENSSL_NO_ENGINE -# include <openssl/engine.h> -#endif - -#include "asn1_locl.h" +#include "internal/asn1_int.h" +#include "internal/evp_int.h" static void EVP_PKEY_free_it(EVP_PKEY *x); -int EVP_PKEY_bits(EVP_PKEY *pkey) +int EVP_PKEY_bits(const EVP_PKEY *pkey) { if (pkey && pkey->ameth && pkey->ameth->pkey_bits) return pkey->ameth->pkey_bits(pkey); return 0; } +int EVP_PKEY_security_bits(const EVP_PKEY *pkey) +{ + if (pkey == NULL) + return 0; + if (!pkey->ameth || !pkey->ameth->pkey_security_bits) + return -2; + return pkey->ameth->pkey_security_bits(pkey); +} + int EVP_PKEY_size(EVP_PKEY *pkey) { if (pkey && pkey->ameth && pkey->ameth->pkey_size) @@ -121,7 +72,10 @@ int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) { - if (to->type != from->type) { + if (to->type == EVP_PKEY_NONE) { + if (EVP_PKEY_set_type(to, from->type) == 0) + return 0; + } else if (to->type != from->type) { EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES); goto err; } @@ -183,22 +137,35 @@ int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) EVP_PKEY *EVP_PKEY_new(void) { - EVP_PKEY *ret; + EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); - ret = (EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY)); if (ret == NULL) { EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); - return (NULL); + return NULL; } ret->type = EVP_PKEY_NONE; ret->save_type = EVP_PKEY_NONE; ret->references = 1; - ret->ameth = NULL; - ret->engine = NULL; - ret->pkey.ptr = NULL; - ret->attributes = NULL; ret->save_parameters = 1; - return (ret); + ret->lock = CRYPTO_THREAD_lock_new(); + if (ret->lock == NULL) { + EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); + OPENSSL_free(ret); + return NULL; + } + return ret; +} + +int EVP_PKEY_up_ref(EVP_PKEY *pkey) +{ + int i; + + if (CRYPTO_atomic_add(&pkey->references, 1, &i, pkey->lock) <= 0) + return 0; + + REF_PRINT_COUNT("EVP_PKEY", pkey); + REF_ASSERT_ISNT(i < 2); + return ((i > 1) ? 1 : 0); } /* @@ -220,11 +187,11 @@ static int pkey_set_type(EVP_PKEY *pkey, int type, const char *str, int len) if ((type == pkey->save_type) && pkey->ameth) return 1; #ifndef OPENSSL_NO_ENGINE - /* If we have an ENGINE release it */ - if (pkey->engine) { - ENGINE_finish(pkey->engine); - pkey->engine = NULL; - } + /* If we have ENGINEs release them */ + ENGINE_finish(pkey->engine); + pkey->engine = NULL; + ENGINE_finish(pkey->pmeth_engine); + pkey->pmeth_engine = NULL; #endif } if (str) @@ -232,10 +199,10 @@ static int pkey_set_type(EVP_PKEY *pkey, int type, const char *str, int len) else ameth = EVP_PKEY_asn1_find(&e, type); #ifndef OPENSSL_NO_ENGINE - if (!pkey && e) + if (pkey == NULL) ENGINE_finish(e); #endif - if (!ameth) { + if (ameth == NULL) { EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); return 0; } @@ -258,7 +225,25 @@ int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) { return pkey_set_type(pkey, EVP_PKEY_NONE, str, len); } - +#ifndef OPENSSL_NO_ENGINE +int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) +{ + if (e != NULL) { + if (!ENGINE_init(e)) { + EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); + return 0; + } + if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { + ENGINE_finish(e); + EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); + return 0; + } + } + ENGINE_finish(pkey->pmeth_engine); + pkey->pmeth_engine = e; + return 1; +} +#endif int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) { if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) @@ -267,11 +252,23 @@ int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) return (key != NULL); } -void *EVP_PKEY_get0(EVP_PKEY *pkey) +void *EVP_PKEY_get0(const EVP_PKEY *pkey) { return pkey->pkey.ptr; } +const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) +{ + ASN1_OCTET_STRING *os = NULL; + if (pkey->type != EVP_PKEY_HMAC) { + EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); + return NULL; + } + os = EVP_PKEY_get0(pkey); + *len = os->length; + return os->data; +} + #ifndef OPENSSL_NO_RSA int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) { @@ -281,15 +278,22 @@ int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) return ret; } -RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) +RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey) { if (pkey->type != EVP_PKEY_RSA) { - EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY); + EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); return NULL; } - RSA_up_ref(pkey->pkey.rsa); return pkey->pkey.rsa; } + +RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) +{ + RSA *ret = EVP_PKEY_get0_RSA(pkey); + if (ret != NULL) + RSA_up_ref(ret); + return ret; +} #endif #ifndef OPENSSL_NO_DSA @@ -301,15 +305,22 @@ int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) return ret; } -DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) +DSA *EVP_PKEY_get0_DSA(EVP_PKEY *pkey) { if (pkey->type != EVP_PKEY_DSA) { - EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY); + EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); return NULL; } - DSA_up_ref(pkey->pkey.dsa); return pkey->pkey.dsa; } + +DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) +{ + DSA *ret = EVP_PKEY_get0_DSA(pkey); + if (ret != NULL) + DSA_up_ref(ret); + return ret; +} #endif #ifndef OPENSSL_NO_EC @@ -322,15 +333,22 @@ int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) return ret; } -EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) +EC_KEY *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey) { if (pkey->type != EVP_PKEY_EC) { - EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); + EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); return NULL; } - EC_KEY_up_ref(pkey->pkey.ec); return pkey->pkey.ec; } + +EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) +{ + EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); + if (ret != NULL) + EC_KEY_up_ref(ret); + return ret; +} #endif #ifndef OPENSSL_NO_DH @@ -343,15 +361,22 @@ int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) return ret; } -DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) +DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey) { if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { - EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY); + EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); return NULL; } - DH_up_ref(pkey->pkey.dh); return pkey->pkey.dh; } + +DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) +{ + DH *ret = EVP_PKEY_get0_DH(pkey); + if (ret != NULL) + DH_up_ref(ret); + return ret; +} #endif int EVP_PKEY_type(int type) @@ -365,8 +390,7 @@ int EVP_PKEY_type(int type) else ret = NID_undef; #ifndef OPENSSL_NO_ENGINE - if (e) - ENGINE_finish(e); + ENGINE_finish(e); #endif return ret; } @@ -388,35 +412,29 @@ void EVP_PKEY_free(EVP_PKEY *x) if (x == NULL) return; - i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY); -#ifdef REF_PRINT - REF_PRINT("EVP_PKEY", x); -#endif + CRYPTO_atomic_add(&x->references, -1, &i, x->lock); + REF_PRINT_COUNT("EVP_PKEY", x); if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) { - fprintf(stderr, "EVP_PKEY_free, bad reference count\n"); - abort(); - } -#endif + REF_ASSERT_ISNT(i < 0); EVP_PKEY_free_it(x); - if (x->attributes) - sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); + CRYPTO_THREAD_lock_free(x->lock); + sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); OPENSSL_free(x); } static void EVP_PKEY_free_it(EVP_PKEY *x) { + /* internal function; x is never NULL */ if (x->ameth && x->ameth->pkey_free) { x->ameth->pkey_free(x); x->pkey.ptr = NULL; } #ifndef OPENSSL_NO_ENGINE - if (x->engine) { - ENGINE_finish(x->engine); - x->engine = NULL; - } + ENGINE_finish(x->engine); + x->engine = NULL; + ENGINE_finish(x->pmeth_engine); + x->pmeth_engine = NULL; #endif } @@ -455,10 +473,34 @@ int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, return unsup_alg(out, pkey, indent, "Parameters"); } -int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) +static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) { - if (!pkey->ameth || !pkey->ameth->pkey_ctrl) + if (pkey->ameth == NULL || pkey->ameth->pkey_ctrl == NULL) return -2; - return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, - 0, pnid); + return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); +} + +int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) +{ + return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); +} + +int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, + const unsigned char *pt, size_t ptlen) +{ + if (ptlen > INT_MAX) + return 0; + if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, + (void *)pt) <= 0) + return 0; + return 1; +} + +size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) +{ + int rv; + rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); + if (rv <= 0) + return 0; + return rv; } |