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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>
/* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
#define foreach_crypto_cipher_alg \
_(DES_CBC, "des-cbc", 7) \
_(3DES_CBC, "3des-cbc", 24) \
_(AES_128_CBC, "aes-128-cbc", 16) \
_(AES_192_CBC, "aes-192-cbc", 24) \
_(AES_256_CBC, "aes-256-cbc", 32) \
_(AES_128_CTR, "aes-128-ctr", 16) \
_(AES_192_CTR, "aes-192-ctr", 24) \
_(AES_256_CTR, "aes-256-ctr", 32)
/* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
#define foreach_crypto_aead_alg \
_(AES_128_GCM, "aes-128-gcm", 16) \
_(AES_192_GCM, "aes-192-gcm", 24) \
_(AES_256_GCM, "aes-256-gcm", 32)
#define foreach_crypto_hmac_alg \
_(MD5, "md5") \
_(SHA1, "sha-1") \
_(SHA224, "sha-224") \
_(SHA256, "sha-256") \
_(SHA384, "sha-384") \
_(SHA512, "sha-512")
#define foreach_crypto_op_type \
_(ENCRYPT, "encrypt") \
_(DECRYPT, "decrypt") \
_(AEAD_ENCRYPT, "aead-encrypt") \
_(AEAD_DECRYPT, "aead-decrypt") \
_(HMAC, "hmac")
typedef enum
{
#define _(n, s) VNET_CRYPTO_OP_TYPE_##n,
foreach_crypto_op_type
#undef _
VNET_CRYPTO_OP_N_TYPES,
} vnet_crypto_op_type_t;
#define foreach_crypto_op_status \
_(PENDING, "pending") \
_(COMPLETED, "completed") \
_(FAIL_NO_HANDLER, "no-handler") \
_(FAIL_BAD_HMAC, "bad-hmac") \
_(FAIL_DECRYPT, "decrypt-fail")
typedef enum
{
VNET_CRYPTO_KEY_OP_ADD,
VNET_CRYPTO_KEY_OP_DEL,
VNET_CRYPTO_KEY_OP_MODIFY,
} vnet_crypto_key_op_t;
typedef enum
{
#define _(n, s) VNET_CRYPTO_OP_STATUS_##n,
foreach_crypto_op_status
#undef _
VNET_CRYPTO_OP_N_STATUS,
} vnet_crypto_op_status_t;
/* *INDENT-OFF* */
typedef enum
{
VNET_CRYPTO_ALG_NONE = 0,
#define _(n, s, l) VNET_CRYPTO_ALG_##n,
foreach_crypto_cipher_alg
foreach_crypto_aead_alg
#undef _
#define _(n, s) VNET_CRYPTO_ALG_HMAC_##n,
foreach_crypto_hmac_alg
#undef _
VNET_CRYPTO_N_ALGS,
} vnet_crypto_alg_t;
typedef struct
{
u8 *data;
vnet_crypto_alg_t alg:8;
} vnet_crypto_key_t;
typedef enum
{
VNET_CRYPTO_OP_NONE = 0,
#define _(n, s, l) VNET_CRYPTO_OP_##n##_ENC, VNET_CRYPTO_OP_##n##_DEC,
foreach_crypto_cipher_alg
foreach_crypto_aead_alg
#undef _
#define _(n, s) VNET_CRYPTO_OP_##n##_HMAC,
foreach_crypto_hmac_alg
#undef _
VNET_CRYPTO_N_OP_IDS,
} vnet_crypto_op_id_t;
/* *INDENT-ON* */
typedef struct
{
char *name;
vnet_crypto_op_id_t op_by_type[VNET_CRYPTO_OP_N_TYPES];
} vnet_crypto_alg_data_t;
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
vnet_crypto_op_id_t op:16;
vnet_crypto_op_status_t status:8;
u8 flags;
#define VNET_CRYPTO_OP_FLAG_INIT_IV (1 << 0)
#define VNET_CRYPTO_OP_FLAG_HMAC_CHECK (1 << 1)
u32 key_index;
u32 len;
u16 aad_len;
u8 digest_len, tag_len;
u8 *iv;
u8 *src;
u8 *dst;
u8 *aad;
u8 *tag;
u8 *digest;
uword user_data;
} vnet_crypto_op_t;
typedef struct
{
vnet_crypto_op_type_t type;
vnet_crypto_alg_t alg;
u32 active_engine_index;
} vnet_crypto_op_data_t;
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
clib_bitmap_t *act_queues;
} vnet_crypto_thread_t;
typedef u32 vnet_crypto_key_index_t;
typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
vnet_crypto_op_t * ops[], u32 n_ops);
typedef void (vnet_crypto_key_handler_t) (vlib_main_t * vm,
vnet_crypto_key_op_t kop,
vnet_crypto_key_index_t idx);
u32 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
char *desc);
void vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_op_id_t opt,
vnet_crypto_ops_handler_t * oph);
void vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_key_handler_t * keyh);
typedef struct
{
char *name;
char *desc;
int priority;
vnet_crypto_key_handler_t *key_op_handler;
vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_IDS];
} 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_data_t opt_data[VNET_CRYPTO_N_OP_IDS];
vnet_crypto_engine_t *engines;
vnet_crypto_key_t *keys;
uword *engine_index_by_name;
uword *alg_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);
int vnet_crypto_is_set_handler (vnet_crypto_alg_t alg);
u32 vnet_crypto_key_add (vlib_main_t * vm, vnet_crypto_alg_t alg,
u8 * data, u16 length);
void vnet_crypto_key_del (vlib_main_t * vm, vnet_crypto_key_index_t index);
format_function_t format_vnet_crypto_alg;
format_function_t format_vnet_crypto_engine;
format_function_t format_vnet_crypto_op;
format_function_t format_vnet_crypto_op_type;
format_function_t format_vnet_crypto_op_status;
unformat_function_t unformat_vnet_crypto_alg;
static_always_inline void
vnet_crypto_op_init (vnet_crypto_op_t * op, vnet_crypto_op_id_t type)
{
if (CLIB_DEBUG > 0)
clib_memset (op, 0xfe, sizeof (*op));
op->op = type;
op->flags = 0;
op->key_index = ~0;
}
static_always_inline vnet_crypto_op_type_t
vnet_crypto_get_op_type (vnet_crypto_op_id_t id)
{
vnet_crypto_main_t *cm = &crypto_main;
vnet_crypto_op_data_t *od = vec_elt_at_index (cm->opt_data, id);
return od->type;
}
static_always_inline vnet_crypto_key_t *
vnet_crypto_get_key (vnet_crypto_key_index_t index)
{
vnet_crypto_main_t *cm = &crypto_main;
return vec_elt_at_index (cm->keys, index);
}
#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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