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https://github.com/QuasarApp/openssl.git
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f75abcc0f0
Fixes #10438 issue found by clusterfuzz/ossfuzz The dest was getting a copy of the src structure which contained a pointer that should point to an offset inside itself - because of the copy it was pointing to the original structure. The setup for a ctx is mainly done by the initkey method in the PROV_CIPHER_HW structure. Because of this it makes sense that the structure should also contain a copyctx method that is use to resolve any pointers that need to be setup. A dup_ctx has been added to the cipher_enc tests in evp_test. It does a dup after setup and then frees the original ctx. This detects any floating pointers in the duplicated context that were pointing back to the freed ctx. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10443)
82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/*
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* Copyright 2019 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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/* Dispatch functions for CAMELLIA cipher modes ecb, cbc, ofb, cfb, ctr */
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#include "cipher_camellia.h"
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#include "prov/implementations.h"
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static OSSL_OP_cipher_freectx_fn camellia_freectx;
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static OSSL_OP_cipher_dupctx_fn camellia_dupctx;
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static void camellia_freectx(void *vctx)
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{
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PROV_CAMELLIA_CTX *ctx = (PROV_CAMELLIA_CTX *)vctx;
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OPENSSL_clear_free(ctx, sizeof(*ctx));
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}
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static void *camellia_dupctx(void *ctx)
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{
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PROV_CAMELLIA_CTX *in = (PROV_CAMELLIA_CTX *)ctx;
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PROV_CAMELLIA_CTX *ret = OPENSSL_malloc(sizeof(*ret));
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if (ret == NULL) {
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ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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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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/* camellia256ecb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ecb, ECB, 0, 256, 128, 0, block)
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/* camellia192ecb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ecb, ECB, 0, 192, 128, 0, block)
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/* camellia128ecb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ecb, ECB, 0, 128, 128, 0, block)
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/* camellia256cbc_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cbc, CBC, 0, 256, 128, 128, block)
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/* camellia192cbc_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cbc, CBC, 0, 192, 128, 128, block)
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/* camellia128cbc_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cbc, CBC, 0, 128, 128, 128, block)
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/* camellia256ofb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ofb, OFB, 0, 256, 8, 128, stream)
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/* camellia192ofb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ofb, OFB, 0, 192, 8, 128, stream)
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/* camellia128ofb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ofb, OFB, 0, 128, 8, 128, stream)
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/* camellia256cfb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb, CFB, 0, 256, 8, 128, stream)
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/* camellia192cfb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb, CFB, 0, 192, 8, 128, stream)
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/* camellia128cfb_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb, CFB, 0, 128, 8, 128, stream)
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/* camellia256cfb1_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb1, CFB, 0, 256, 8, 128, stream)
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/* camellia192cfb1_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb1, CFB, 0, 192, 8, 128, stream)
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/* camellia128cfb1_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb1, CFB, 0, 128, 8, 128, stream)
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/* camellia256cfb8_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb8, CFB, 0, 256, 8, 128, stream)
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/* camellia192cfb8_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb8, CFB, 0, 192, 8, 128, stream)
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/* camellia128cfb8_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, cfb8, CFB, 0, 128, 8, 128, stream)
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/* camellia256ctr_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ctr, CTR, 0, 256, 8, 128, stream)
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/* camellia192ctr_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ctr, CTR, 0, 192, 8, 128, stream)
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/* camellia128ctr_functions */
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IMPLEMENT_generic_cipher(camellia, CAMELLIA, ctr, CTR, 0, 128, 8, 128, stream)
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