/*
* Copyright (c) 2012 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <libkern/crypto/crypto_internal.h>
#include <libkern/crypto/sha2.h>
#include <libkern/libkern.h>
#include <kern/debug.h>
#include <corecrypto/ccdigest.h>
#if defined(CRYPTO_SHA2)
void
SHA256_Init(SHA256_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha256_di;
/* Make sure the context size for the digest info fits in the one we have */
if (ccdigest_di_size(di) > sizeof(SHA256_CTX)) {
panic("%s: inconsistent size for SHA256 context", __FUNCTION__);
}
g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
}
void
SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha256_di;
g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
}
void
SHA256_Final(void *digest, SHA256_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha256_di;
ccdigest_final(di, ctx->ctx, digest);
}
void
SHA384_Init(SHA384_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha384_di;
/* Make sure the context size for the digest info fits in the one we have */
if (ccdigest_di_size(di) > sizeof(SHA384_CTX)) {
panic("%s: inconsistent size for SHA384 context", __FUNCTION__);
}
g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
}
void
SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha384_di;
g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
}
void
SHA384_Final(void *digest, SHA384_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha384_di;
ccdigest_final(di, ctx->ctx, digest);
}
void
SHA512_Init(SHA512_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha512_di;
/* Make sure the context size for the digest info fits in the one we have */
if (ccdigest_di_size(di) > sizeof(SHA512_CTX)) {
panic("%s: inconsistent size for SHA512 context", __FUNCTION__);
}
g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
}
void
SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha512_di;
g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
}
void
SHA512_Final(void *digest, SHA512_CTX *ctx)
{
const struct ccdigest_info *di;
di = g_crypto_funcs->ccsha512_di;
ccdigest_final(di, ctx->ctx, digest);
}
#else
/* As these are part of the KPI, we need to stub them out for any kernel configuration that does not support SHA2. */
void UNSUPPORTED_API(SHA256_Init, SHA256_CTX *ctx);
void UNSUPPORTED_API(SHA384_Init, SHA384_CTX *ctx);
void UNSUPPORTED_API(SHA512_Init, SHA512_CTX *ctx);
void UNSUPPORTED_API(SHA256_Update, SHA256_CTX *ctx, const void *data, size_t len);
void UNSUPPORTED_API(SHA384_Update, SHA384_CTX *ctx, const void *data, size_t len);
void UNSUPPORTED_API(SHA512_Update, SHA512_CTX *ctx, const void *data, size_t len);
void UNSUPPORTED_API(SHA256_Final, void *digest, SHA256_CTX *ctx);
void UNSUPPORTED_API(SHA384_Final, void *digest, SHA384_CTX *ctx);
void UNSUPPORTED_API(SHA512_Final, void *digest, SHA512_CTX *ctx);
#endif