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/*-
* BSD LICENSE
*
* Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* 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
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER 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.
*/
#ifndef _RTE_AESNI_MB_PMD_PRIVATE_H_
#define _RTE_AESNI_MB_PMD_PRIVATE_H_
#include "aesni_mb_ops.h"
#define MB_LOG_ERR(fmt, args...) \
RTE_LOG(ERR, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
RTE_STR(CRYPTODEV_NAME_AESNI_MB_PMD), \
__func__, __LINE__, ## args)
#ifdef RTE_LIBRTE_AESNI_MB_DEBUG
#define MB_LOG_INFO(fmt, args...) \
RTE_LOG(INFO, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
CRYPTODEV_NAME_AESNI_MB_PMD, \
__func__, __LINE__, ## args)
#define MB_LOG_DBG(fmt, args...) \
RTE_LOG(DEBUG, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
CRYPTODEV_NAME_AESNI_MB_PMD, \
__func__, __LINE__, ## args)
#else
#define MB_LOG_INFO(fmt, args...)
#define MB_LOG_DBG(fmt, args...)
#endif
#define HMAC_IPAD_VALUE (0x36)
#define HMAC_OPAD_VALUE (0x5C)
static const unsigned auth_blocksize[] = {
[MD5] = 64,
[SHA1] = 64,
[SHA_224] = 64,
[SHA_256] = 64,
[SHA_384] = 128,
[SHA_512] = 128,
[AES_XCBC] = 16,
};
/**
* Get the blocksize in bytes for a specified authentication algorithm
*
* @Note: this function will not return a valid value for a non-valid
* authentication algorithm
*/
static inline unsigned
get_auth_algo_blocksize(JOB_HASH_ALG algo)
{
return auth_blocksize[algo];
}
static const unsigned auth_truncated_digest_byte_lengths[] = {
[MD5] = 12,
[SHA1] = 12,
[SHA_224] = 14,
[SHA_256] = 16,
[SHA_384] = 24,
[SHA_512] = 32,
[AES_XCBC] = 12,
[NULL_HASH] = 0
};
/**
* Get the IPsec specified truncated length in bytes of the HMAC digest for a
* specified authentication algorithm
*
* @Note: this function will not return a valid value for a non-valid
* authentication algorithm
*/
static inline unsigned
get_truncated_digest_byte_length(JOB_HASH_ALG algo)
{
return auth_truncated_digest_byte_lengths[algo];
}
static const unsigned auth_digest_byte_lengths[] = {
[MD5] = 16,
[SHA1] = 20,
[SHA_224] = 28,
[SHA_256] = 32,
[SHA_384] = 48,
[SHA_512] = 64,
[AES_XCBC] = 16,
[NULL_HASH] = 0
};
/**
* Get the output digest size in bytes for a specified authentication algorithm
*
* @Note: this function will not return a valid value for a non-valid
* authentication algorithm
*/
static inline unsigned
get_digest_byte_length(JOB_HASH_ALG algo)
{
return auth_digest_byte_lengths[algo];
}
enum aesni_mb_operation {
AESNI_MB_OP_HASH_CIPHER,
AESNI_MB_OP_CIPHER_HASH,
AESNI_MB_OP_HASH_ONLY,
AESNI_MB_OP_CIPHER_ONLY,
AESNI_MB_OP_NOT_SUPPORTED
};
/** private data structure for each virtual AESNI device */
struct aesni_mb_private {
enum aesni_mb_vector_mode vector_mode;
/**< CPU vector instruction set mode */
unsigned max_nb_queue_pairs;
/**< Max number of queue pairs supported by device */
unsigned max_nb_sessions;
/**< Max number of sessions supported by device */
};
/** AESNI Multi buffer queue pair */
struct aesni_mb_qp {
uint16_t id;
/**< Queue Pair Identifier */
char name[RTE_CRYPTODEV_NAME_LEN];
/**< Unique Queue Pair Name */
const struct aesni_mb_op_fns *op_fns;
/**< Vector mode dependent pointer table of the multi-buffer APIs */
MB_MGR mb_mgr;
/**< Multi-buffer instance */
struct rte_ring *ingress_queue;
/**< Ring for placing operations ready for processing */
struct rte_mempool *sess_mp;
/**< Session Mempool */
struct rte_cryptodev_stats stats;
/**< Queue pair statistics */
} __rte_cache_aligned;
/** AES-NI multi-buffer private session structure */
struct aesni_mb_session {
JOB_CHAIN_ORDER chain_order;
/** Cipher Parameters */
struct {
/** Cipher direction - encrypt / decrypt */
JOB_CIPHER_DIRECTION direction;
/** Cipher mode - CBC / Counter */
JOB_CIPHER_MODE mode;
uint64_t key_length_in_bytes;
struct {
uint32_t encode[60] __rte_aligned(16);
/**< encode key */
uint32_t decode[60] __rte_aligned(16);
/**< decode key */
} expanded_aes_keys;
/**< Expanded AES keys - Allocating space to
* contain the maximum expanded key size which
* is 240 bytes for 256 bit AES, calculate by:
* ((key size (bytes)) *
* ((number of rounds) + 1))
*/
} cipher;
/** Authentication Parameters */
struct {
JOB_HASH_ALG algo; /**< Authentication Algorithm */
enum rte_crypto_auth_operation operation;
/**< auth operation generate or verify */
union {
struct {
uint8_t inner[128] __rte_aligned(16);
/**< inner pad */
uint8_t outer[128] __rte_aligned(16);
/**< outer pad */
} pads;
/**< HMAC Authentication pads -
* allocating space for the maximum pad
* size supported which is 128 bytes for
* SHA512
*/
struct {
uint32_t k1_expanded[44] __rte_aligned(16);
/**< k1 (expanded key). */
uint8_t k2[16] __rte_aligned(16);
/**< k2. */
uint8_t k3[16] __rte_aligned(16);
/**< k3. */
} xcbc;
/**< Expanded XCBC authentication keys */
};
} auth;
} __rte_cache_aligned;
/**
*
*/
extern int
aesni_mb_set_session_parameters(const struct aesni_mb_op_fns *mb_ops,
struct aesni_mb_session *sess,
const struct rte_crypto_sym_xform *xform);
/** device specific operations function pointer structure */
extern struct rte_cryptodev_ops *rte_aesni_mb_pmd_ops;
#endif /* _RTE_AESNI_MB_PMD_PRIVATE_H_ */
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