xref: /isa-l_crypto/sha512_mb/sha512_mb.c (revision 371c22bef8122d95ed1edbb3e0c50661f6d8f897)

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  modification, are permitted provided that the following conditions
  are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
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      notice, this list of conditions and the following disclaimer in
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      distribution.
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      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "sha512_mb_internal.h"
#include "isal_crypto_api.h"
#include "multi_buffer.h"

int
isal_sha512_ctx_mgr_init(ISAL_SHA512_HASH_CTX_MGR *mgr)
{
#ifdef SAFE_PARAM
        if (mgr == NULL)
                return ISAL_CRYPTO_ERR_NULL_MGR;
#endif

#ifdef FIPS_MODE
        if (isal_self_tests())
                return ISAL_CRYPTO_ERR_SELF_TEST;
#endif

        _sha512_ctx_mgr_init(mgr);

        return 0;
}

int
isal_sha512_ctx_mgr_submit(ISAL_SHA512_HASH_CTX_MGR *mgr, ISAL_SHA512_HASH_CTX *ctx_in,
                           ISAL_SHA512_HASH_CTX **ctx_out, const void *buffer, const uint32_t len,
                           const ISAL_HASH_CTX_FLAG flags)
{
#ifdef SAFE_PARAM
        if (mgr == NULL)
                return ISAL_CRYPTO_ERR_NULL_MGR;
        if (ctx_in == NULL || ctx_out == NULL)
                return ISAL_CRYPTO_ERR_NULL_CTX;
        /* OK to have NULL source buffer when flags is HASH_FIRST or HASH_LAST */
        if (buffer == NULL && (flags == ISAL_HASH_UPDATE || flags == ISAL_HASH_ENTIRE))
                return ISAL_CRYPTO_ERR_NULL_SRC;
#endif

#ifdef FIPS_MODE
        if (isal_self_tests())
                return ISAL_CRYPTO_ERR_SELF_TEST;
#endif

        *ctx_out = _sha512_ctx_mgr_submit(mgr, ctx_in, buffer, len, flags);

#ifdef SAFE_PARAM
        if (*ctx_out != NULL &&
            (ISAL_SHA512_HASH_CTX *) (*ctx_out)->error != ISAL_HASH_CTX_ERROR_NONE) {
                ISAL_SHA512_HASH_CTX *cp = (ISAL_SHA512_HASH_CTX *) (*ctx_out);

                if (cp->error == ISAL_HASH_CTX_ERROR_INVALID_FLAGS)
                        return ISAL_CRYPTO_ERR_INVALID_FLAGS;
                if (cp->error == ISAL_HASH_CTX_ERROR_ALREADY_PROCESSING)
                        return ISAL_CRYPTO_ERR_ALREADY_PROCESSING;
                if (cp->error == ISAL_HASH_CTX_ERROR_ALREADY_COMPLETED)
                        return ISAL_CRYPTO_ERR_ALREADY_COMPLETED;
        }
#endif
        return 0;
}

int
isal_sha512_ctx_mgr_flush(ISAL_SHA512_HASH_CTX_MGR *mgr, ISAL_SHA512_HASH_CTX **ctx_out)
{
#ifdef SAFE_PARAM
        if (mgr == NULL)
                return ISAL_CRYPTO_ERR_NULL_MGR;
        if (ctx_out == NULL)
                return ISAL_CRYPTO_ERR_NULL_CTX;
#endif

#ifdef FIPS_MODE
        if (isal_self_tests())
                return ISAL_CRYPTO_ERR_SELF_TEST;
#endif

        *ctx_out = _sha512_ctx_mgr_flush(mgr);

        return 0;
}

/*
 * =============================================================================
 * LEGACY / DEPRECATED API
 * =============================================================================
 */

void
sha512_ctx_mgr_init(ISAL_SHA512_HASH_CTX_MGR *mgr)
{
        _sha512_ctx_mgr_init(mgr);
}

ISAL_SHA512_HASH_CTX *
sha512_ctx_mgr_submit(ISAL_SHA512_HASH_CTX_MGR *mgr, ISAL_SHA512_HASH_CTX *ctx, const void *buffer,
                      uint32_t len, ISAL_HASH_CTX_FLAG flags)
{
        return _sha512_ctx_mgr_submit(mgr, ctx, buffer, len, flags);
}

ISAL_SHA512_HASH_CTX *
sha512_ctx_mgr_flush(ISAL_SHA512_HASH_CTX_MGR *mgr)
{
        return _sha512_ctx_mgr_flush(mgr);
}