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/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_vnet_crypto_crypto_h
#define included_vnet_crypto_crypto_h
#define VNET_CRYPTO_RING_SIZE 512
#include <vlib/vlib.h>
#define foreach_crypto_alg \
_(DES_CBC, "des-cbc") \
_(3DES_CBC, "3des-cbc") \
_(AES_128_CBC, "aes-128-cbc") \
_(AES_192_CBC, "aes-192-cbc") \
_(AES_256_CBC, "aes-256-cbc")
#define foreach_hmac_alg \
_(MD5, "md5") \
_(SHA1, "sha-1") \
_(SHA224, "sha-224") \
_(SHA256, "sha-256") \
_(SHA384, "sha-384") \
_(SHA512, "sha-512")
/* *INDENT-OFF* */
typedef enum
{
#define _(n, s) VNET_CRYPTO_ALG_##n,
foreach_crypto_alg
#undef _
#define _(n, s) VNET_CRYPTO_ALG_##n,
foreach_hmac_alg
#undef _
VNET_CRYPTO_N_ALGS,
} vnet_crypto_alg_t;
typedef enum
{
VNET_CRYPTO_OP_NONE = 0,
#define _(n, s) VNET_CRYPTO_OP_##n##_ENC, VNET_CRYPTO_OP_##n##_DEC,
foreach_crypto_alg
#undef _
#define _(n, s) VNET_CRYPTO_OP_##n##_HMAC,
foreach_hmac_alg
#undef _
VNET_CRYPTO_N_OP_TYPES,
} __attribute__ ((packed)) vnet_crypto_op_type_t;
/* *INDENT-ON* */
STATIC_ASSERT (sizeof (vnet_crypto_op_type_t) <= 2,
"crypto op type > 2 bytes");
typedef struct
{
char *name;
} vnet_crypto_alg_data_t;
typedef enum
{
VNET_CRYPTO_OP_STATUS_PENDING,
VNET_CRYPTO_OP_STATUS_COMPLETED,
VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER,
} __attribute__ ((packed)) vnet_crypto_op_status_t;
STATIC_ASSERT (sizeof (vnet_crypto_op_status_t) == 1,
"crypto op status > 1 byte");
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
vnet_crypto_op_type_t op;
vnet_crypto_op_status_t status;
u8 key_len, hmac_trunc_len;
u16 flags;
#define VNET_CRYPTO_OP_FLAG_INIT_IV 1
u32 len;
u8 *key;
u8 *iv;
u8 *src;
u8 *dst;
uword user_data;
} vnet_crypto_op_t;
typedef struct
{
vnet_crypto_alg_t alg;
const char *desc;
u32 active_engine_index;
} vnet_crypto_op_type_data_t;
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
u32 head;
u32 tail;
u32 size;
vnet_crypto_alg_t alg:8;
vnet_crypto_op_type_t op:8;
vnet_crypto_op_t *jobs[0];
} vnet_crypto_queue_t;
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
clib_bitmap_t *act_queues;
vnet_crypto_queue_t *queues[VNET_CRYPTO_N_OP_TYPES];
} vnet_crypto_thread_t;
typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
vnet_crypto_op_t * ops[], u32 n_ops);
u32 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
char *desc);
vlib_error_t *vnet_crypto_register_ops_handler (vlib_main_t * vm,
u32 provider_index,
vnet_crypto_op_type_t opt,
vnet_crypto_ops_handler_t *
f);
typedef struct
{
char *name;
char *desc;
int priority;
vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_TYPES];
} vnet_crypto_engine_t;
typedef struct
{
vnet_crypto_alg_data_t *algs;
vnet_crypto_thread_t *threads;
vnet_crypto_ops_handler_t **ops_handlers;
vnet_crypto_op_type_data_t opt_data[VNET_CRYPTO_N_OP_TYPES];
vnet_crypto_engine_t *engines;
uword *engine_index_by_name;
uword *ops_handler_index_by_name;
} vnet_crypto_main_t;
extern vnet_crypto_main_t crypto_main;
u32 vnet_crypto_submit_ops (vlib_main_t * vm, vnet_crypto_op_t ** jobs,
u32 n_jobs);
u32 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
u32 n_ops);
int vnet_crypto_set_handler (char *ops_handler_name, char *engine);
format_function_t format_vnet_crypto_alg;
format_function_t format_vnet_crypto_engine;
format_function_t format_vnet_crypto_op;
static_always_inline void
vnet_crypto_op_init (vnet_crypto_op_t * op, vnet_crypto_op_type_t type)
{
if (CLIB_DEBUG > 0)
clib_memset (op, 0xfe, sizeof (*op));
op->op = type;
op->flags = 0;
}
#endif /* included_vnet_crypto_crypto_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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