mirror of
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e077455e9e
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and
at least handle the file name and line number they are called from,
there's no need to report ERR_R_MALLOC_FAILURE where they are called
directly, or when SSLfatal() and RLAYERfatal() is used, the reason
`ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`.
There were a number of places where `ERR_R_MALLOC_FAILURE` was reported
even though it was a function from a different sub-system that was
called. Those places are changed to report ERR_R_{lib}_LIB, where
{lib} is the name of that sub-system.
Some of them are tricky to get right, as we have a lot of functions
that belong in the ASN1 sub-system, and all the `sk_` calls or from
the CRYPTO sub-system.
Some extra adaptation was necessary where there were custom OPENSSL_malloc()
wrappers, and some bugs are fixed alongside these changes.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)
201 lines
7.7 KiB
C
201 lines
7.7 KiB
C
/*
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* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* DES low level APIs are deprecated for public use, but still ok for internal
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* use.
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*/
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#include "internal/deprecated.h"
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#include <openssl/rand.h>
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#include <openssl/proverr.h>
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#include "prov/ciphercommon.h"
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#include "cipher_des.h"
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#include "prov/implementations.h"
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#include "prov/providercommon.h"
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#define DES_FLAGS PROV_CIPHER_FLAG_RAND_KEY
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static OSSL_FUNC_cipher_freectx_fn des_freectx;
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static OSSL_FUNC_cipher_encrypt_init_fn des_einit;
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static OSSL_FUNC_cipher_decrypt_init_fn des_dinit;
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static OSSL_FUNC_cipher_get_ctx_params_fn des_get_ctx_params;
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static OSSL_FUNC_cipher_gettable_ctx_params_fn des_gettable_ctx_params;
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static void *des_newctx(void *provctx, size_t kbits, size_t blkbits,
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size_t ivbits, unsigned int mode, uint64_t flags,
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const PROV_CIPHER_HW *hw)
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{
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PROV_DES_CTX *ctx;
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if (!ossl_prov_is_running())
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return NULL;
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ctx = OPENSSL_zalloc(sizeof(*ctx));
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if (ctx != NULL)
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ossl_cipher_generic_initkey(ctx, kbits, blkbits, ivbits, mode, flags,
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hw, provctx);
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return ctx;
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}
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static void *des_dupctx(void *ctx)
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{
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PROV_DES_CTX *in = (PROV_DES_CTX *)ctx;
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PROV_DES_CTX *ret;
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if (!ossl_prov_is_running())
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return NULL;
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ret = OPENSSL_malloc(sizeof(*ret));
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if (ret == NULL)
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return NULL;
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in->base.hw->copyctx(&ret->base, &in->base);
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return ret;
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}
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static void des_freectx(void *vctx)
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{
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PROV_DES_CTX *ctx = (PROV_DES_CTX *)vctx;
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ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
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OPENSSL_clear_free(ctx, sizeof(*ctx));
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}
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static int des_init(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[], int enc)
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{
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PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
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if (!ossl_prov_is_running())
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return 0;
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ctx->num = 0;
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ctx->bufsz = 0;
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ctx->enc = enc;
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if (iv != NULL) {
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if (!ossl_cipher_generic_initiv(ctx, iv, ivlen))
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return 0;
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} else if (ctx->iv_set) {
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/* reset IV to keep compatibility with 1.1.1 */
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memcpy(ctx->iv, ctx->oiv, ctx->ivlen);
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}
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if (key != NULL) {
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if (keylen != ctx->keylen) {
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ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
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return 0;
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}
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if (!ctx->hw->init(ctx, key, keylen))
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return 0;
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}
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return ossl_cipher_generic_set_ctx_params(ctx, params);
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}
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static int des_einit(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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return des_init(vctx, key, keylen, iv, ivlen, params, 1);
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}
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static int des_dinit(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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return des_init(vctx, key, keylen, iv, ivlen, params, 0);
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}
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static int des_generatekey(PROV_CIPHER_CTX *ctx, void *ptr)
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{
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DES_cblock *deskey = ptr;
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size_t kl = ctx->keylen;
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if (kl == 0 || RAND_priv_bytes_ex(ctx->libctx, ptr, kl, 0) <= 0)
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return 0;
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DES_set_odd_parity(deskey);
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return 1;
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}
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(des)
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OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_RANDOM_KEY, NULL, 0),
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(des)
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static int des_get_ctx_params(void *vctx, OSSL_PARAM params[])
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{
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PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
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OSSL_PARAM *p;
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if (!ossl_cipher_generic_get_ctx_params(vctx, params))
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return 0;
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_RANDOM_KEY);
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if (p != NULL && !des_generatekey(ctx, p->data)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GENERATE_KEY);
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return 0;
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}
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return 1;
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}
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#define IMPLEMENT_des_cipher(type, lcmode, UCMODE, flags, \
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kbits, blkbits, ivbits, block) \
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static OSSL_FUNC_cipher_newctx_fn type##_##lcmode##_newctx; \
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static void *des_##lcmode##_newctx(void *provctx) \
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{ \
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return des_newctx(provctx, kbits, blkbits, ivbits, \
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EVP_CIPH_##UCMODE##_MODE, flags, \
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ossl_prov_cipher_hw_des_##lcmode()); \
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} \
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static OSSL_FUNC_cipher_get_params_fn des_##lcmode##_get_params; \
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static int des_##lcmode##_get_params(OSSL_PARAM params[]) \
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{ \
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return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
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flags, kbits, blkbits, ivbits); \
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} \
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const OSSL_DISPATCH ossl_##des_##lcmode##_functions[] = { \
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{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))des_einit }, \
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{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))des_dinit }, \
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{ OSSL_FUNC_CIPHER_UPDATE, \
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(void (*)(void))ossl_cipher_generic_##block##_update }, \
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{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))ossl_cipher_generic_##block##_final },\
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{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher }, \
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{ OSSL_FUNC_CIPHER_NEWCTX, \
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(void (*)(void))des_##lcmode##_newctx }, \
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{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))des_dupctx }, \
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{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))des_freectx }, \
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{ OSSL_FUNC_CIPHER_GET_PARAMS, \
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(void (*)(void))des_##lcmode##_get_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
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(void (*)(void))ossl_cipher_generic_gettable_params }, \
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{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, (void (*)(void))des_get_ctx_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
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(void (*)(void))des_gettable_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
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(void (*)(void))ossl_cipher_generic_set_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
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(void (*)(void))ossl_cipher_generic_settable_ctx_params }, \
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{ 0, NULL } \
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}
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/* ossl_des_ecb_functions */
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IMPLEMENT_des_cipher(des, ecb, ECB, DES_FLAGS, 64, 64, 0, block);
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/* ossl_des_cbc_functions */
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IMPLEMENT_des_cipher(des, cbc, CBC, DES_FLAGS, 64, 64, 64, block);
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/* ossl_des_ofb64_functions */
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IMPLEMENT_des_cipher(des, ofb64, OFB, DES_FLAGS, 64, 8, 64, stream);
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/* ossl_des_cfb64_functions */
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IMPLEMENT_des_cipher(des, cfb64, CFB, DES_FLAGS, 64, 8, 64, stream);
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/* ossl_des_cfb1_functions */
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IMPLEMENT_des_cipher(des, cfb1, CFB, DES_FLAGS, 64, 8, 64, stream);
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/* ossl_des_cfb8_functions */
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IMPLEMENT_des_cipher(des, cfb8, CFB, DES_FLAGS, 64, 8, 64, stream);
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