diff options
Diffstat (limited to 'drivers/staging/ccree/cc_crypto_ctx.h')
| -rw-r--r-- | drivers/staging/ccree/cc_crypto_ctx.h | 147 |
1 files changed, 24 insertions, 123 deletions
diff --git a/drivers/staging/ccree/cc_crypto_ctx.h b/drivers/staging/ccree/cc_crypto_ctx.h index 9e10b2670313..591f6fdadc59 100644 --- a/drivers/staging/ccree/cc_crypto_ctx.h +++ b/drivers/staging/ccree/cc_crypto_ctx.h @@ -1,35 +1,23 @@ /* * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ - #ifndef _CC_CRYPTO_CTX_H_ #define _CC_CRYPTO_CTX_H_ -#ifdef __KERNEL__ #include <linux/types.h> -#define INT32_MAX 0x7FFFFFFFL -#else -#include <stdint.h> -#endif - - -#ifndef max -#define max(a, b) ((a) > (b) ? (a) : (b)) -#define min(a, b) ((a) < (b) ? (a) : (b)) -#endif /* context size */ #ifndef CC_CTX_SIZE_LOG2 @@ -39,7 +27,7 @@ #define CC_CTX_SIZE_LOG2 7 #endif #endif -#define CC_CTX_SIZE (1<<CC_CTX_SIZE_LOG2) +#define CC_CTX_SIZE BIT(CC_CTX_SIZE_LOG2) #define CC_DRV_CTX_SIZE_WORDS (CC_CTX_SIZE >> 2) #define CC_DRV_DES_IV_SIZE 8 @@ -65,13 +53,13 @@ #define CC_AES_KEY_SIZE_MAX CC_AES_256_BIT_KEY_SIZE #define CC_AES_KEY_SIZE_WORDS_MAX (CC_AES_KEY_SIZE_MAX >> 2) -#define CC_MD5_DIGEST_SIZE 16 -#define CC_SHA1_DIGEST_SIZE 20 -#define CC_SHA224_DIGEST_SIZE 28 -#define CC_SHA256_DIGEST_SIZE 32 +#define CC_MD5_DIGEST_SIZE 16 +#define CC_SHA1_DIGEST_SIZE 20 +#define CC_SHA224_DIGEST_SIZE 28 +#define CC_SHA256_DIGEST_SIZE 32 #define CC_SHA256_DIGEST_SIZE_IN_WORDS 8 -#define CC_SHA384_DIGEST_SIZE 48 -#define CC_SHA512_DIGEST_SIZE 64 +#define CC_SHA384_DIGEST_SIZE 48 +#define CC_SHA512_DIGEST_SIZE 64 #define CC_SHA1_BLOCK_SIZE 64 #define CC_SHA1_BLOCK_SIZE_IN_WORDS 16 @@ -94,18 +82,17 @@ #define CC_HMAC_BLOCK_SIZE_MAX CC_HASH_BLOCK_SIZE_MAX -#define CC_MULTI2_SYSTEM_KEY_SIZE 32 -#define CC_MULTI2_DATA_KEY_SIZE 8 -#define CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE (CC_MULTI2_SYSTEM_KEY_SIZE + CC_MULTI2_DATA_KEY_SIZE) +#define CC_MULTI2_SYSTEM_KEY_SIZE 32 +#define CC_MULTI2_DATA_KEY_SIZE 8 +#define CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE \ + (CC_MULTI2_SYSTEM_KEY_SIZE + CC_MULTI2_DATA_KEY_SIZE) #define CC_MULTI2_BLOCK_SIZE 8 #define CC_MULTI2_IV_SIZE 8 #define CC_MULTI2_MIN_NUM_ROUNDS 8 #define CC_MULTI2_MAX_NUM_ROUNDS 128 - #define CC_DRV_ALG_MAX_BLOCK_SIZE CC_HASH_BLOCK_SIZE_MAX - enum drv_engine_type { DRV_ENGINE_NULL = 0, DRV_ENGINE_AES = 1, @@ -113,7 +100,7 @@ enum drv_engine_type { DRV_ENGINE_HASH = 3, DRV_ENGINE_RC4 = 4, DRV_ENGINE_DOUT = 5, - DRV_ENGINE_RESERVE32B = INT32_MAX, + DRV_ENGINE_RESERVE32B = S32_MAX, }; enum drv_crypto_alg { @@ -126,7 +113,7 @@ enum drv_crypto_alg { DRV_CRYPTO_ALG_AEAD = 5, DRV_CRYPTO_ALG_BYPASS = 6, DRV_CRYPTO_ALG_NUM = 7, - DRV_CRYPTO_ALG_RESERVE32B = INT32_MAX + DRV_CRYPTO_ALG_RESERVE32B = S32_MAX }; enum drv_crypto_direction { @@ -134,7 +121,7 @@ enum drv_crypto_direction { DRV_CRYPTO_DIRECTION_ENCRYPT = 0, DRV_CRYPTO_DIRECTION_DECRYPT = 1, DRV_CRYPTO_DIRECTION_DECRYPT_ENCRYPT = 3, - DRV_CRYPTO_DIRECTION_RESERVE32B = INT32_MAX + DRV_CRYPTO_DIRECTION_RESERVE32B = S32_MAX }; enum drv_cipher_mode { @@ -152,7 +139,7 @@ enum drv_cipher_mode { DRV_CIPHER_GCTR = 12, DRV_CIPHER_ESSIV = 13, DRV_CIPHER_BITLOCKER = 14, - DRV_CIPHER_RESERVE32B = INT32_MAX + DRV_CIPHER_RESERVE32B = S32_MAX }; enum drv_hash_mode { @@ -163,11 +150,11 @@ enum drv_hash_mode { DRV_HASH_SHA512 = 3, DRV_HASH_SHA384 = 4, DRV_HASH_MD5 = 5, - DRV_HASH_CBC_MAC = 6, + DRV_HASH_CBC_MAC = 6, DRV_HASH_XCBC_MAC = 7, DRV_HASH_CMAC = 8, DRV_HASH_MODE_NUM = 9, - DRV_HASH_RESERVE32B = INT32_MAX + DRV_HASH_RESERVE32B = S32_MAX }; enum drv_hash_hw_mode { @@ -178,7 +165,7 @@ enum drv_hash_hw_mode { DRV_HASH_HW_SHA512 = 4, DRV_HASH_HW_SHA384 = 12, DRV_HASH_HW_GHASH = 6, - DRV_HASH_HW_RESERVE32B = INT32_MAX + DRV_HASH_HW_RESERVE32B = S32_MAX }; enum drv_multi2_mode { @@ -186,10 +173,9 @@ enum drv_multi2_mode { DRV_MULTI2_ECB = 0, DRV_MULTI2_CBC = 1, DRV_MULTI2_OFB = 2, - DRV_MULTI2_RESERVE32B = INT32_MAX + DRV_MULTI2_RESERVE32B = S32_MAX }; - /* drv_crypto_key_type[1:0] is mapped to cipher_do[1:0] */ /* drv_crypto_key_type[2] is mapped to cipher_config2 */ enum drv_crypto_key_type { @@ -201,99 +187,14 @@ enum drv_crypto_key_type { DRV_APPLET_KEY = 4, /* NA */ DRV_PLATFORM_KEY = 5, /* 0x101 */ DRV_CUSTOMER_KEY = 6, /* 0x110 */ - DRV_END_OF_KEYS = INT32_MAX, + DRV_END_OF_KEYS = S32_MAX, }; enum drv_crypto_padding_type { DRV_PADDING_NONE = 0, DRV_PADDING_PKCS7 = 1, - DRV_PADDING_RESERVE32B = INT32_MAX + DRV_PADDING_RESERVE32B = S32_MAX }; -/*******************************************************************/ -/***************** DESCRIPTOR BASED CONTEXTS ***********************/ -/*******************************************************************/ - - /* Generic context ("super-class") */ -struct drv_ctx_generic { - enum drv_crypto_alg alg; -} __attribute__((__may_alias__)); - - -struct drv_ctx_hash { - enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_HASH */ - enum drv_hash_mode mode; - uint8_t digest[CC_DIGEST_SIZE_MAX]; - /* reserve to end of allocated context size */ - uint8_t reserved[CC_CTX_SIZE - 2 * sizeof(uint32_t) - - CC_DIGEST_SIZE_MAX]; -}; - -/* !!!! drv_ctx_hmac should have the same structure as drv_ctx_hash except - k0, k0_size fields */ -struct drv_ctx_hmac { - enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_HMAC */ - enum drv_hash_mode mode; - uint8_t digest[CC_DIGEST_SIZE_MAX]; - uint32_t k0[CC_HMAC_BLOCK_SIZE_MAX/sizeof(uint32_t)]; - uint32_t k0_size; - /* reserve to end of allocated context size */ - uint8_t reserved[CC_CTX_SIZE - 3 * sizeof(uint32_t) - - CC_DIGEST_SIZE_MAX - CC_HMAC_BLOCK_SIZE_MAX]; -}; - -struct drv_ctx_cipher { - enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_AES */ - enum drv_cipher_mode mode; - enum drv_crypto_direction direction; - enum drv_crypto_key_type crypto_key_type; - enum drv_crypto_padding_type padding_type; - uint32_t key_size; /* numeric value in bytes */ - uint32_t data_unit_size; /* required for XTS */ - /* block_state is the AES engine block state. - * It is used by the host to pass IV or counter at initialization. - * It is used by SeP for intermediate block chaining state and for - * returning MAC algorithms results. */ - uint8_t block_state[CC_AES_BLOCK_SIZE]; - uint8_t key[CC_AES_KEY_SIZE_MAX]; - uint8_t xex_key[CC_AES_KEY_SIZE_MAX]; - /* reserve to end of allocated context size */ - uint32_t reserved[CC_DRV_CTX_SIZE_WORDS - 7 - - CC_AES_BLOCK_SIZE/sizeof(uint32_t) - 2 * - (CC_AES_KEY_SIZE_MAX/sizeof(uint32_t))]; -}; - -/* authentication and encryption with associated data class */ -struct drv_ctx_aead { - enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_AES */ - enum drv_cipher_mode mode; - enum drv_crypto_direction direction; - uint32_t key_size; /* numeric value in bytes */ - uint32_t nonce_size; /* nonce size (octets) */ - uint32_t header_size; /* finit additional data size (octets) */ - uint32_t text_size; /* finit text data size (octets) */ - uint32_t tag_size; /* mac size, element of {4, 6, 8, 10, 12, 14, 16} */ - /* block_state1/2 is the AES engine block state */ - uint8_t block_state[CC_AES_BLOCK_SIZE]; - uint8_t mac_state[CC_AES_BLOCK_SIZE]; /* MAC result */ - uint8_t nonce[CC_AES_BLOCK_SIZE]; /* nonce buffer */ - uint8_t key[CC_AES_KEY_SIZE_MAX]; - /* reserve to end of allocated context size */ - uint32_t reserved[CC_DRV_CTX_SIZE_WORDS - 8 - - 3 * (CC_AES_BLOCK_SIZE/sizeof(uint32_t)) - - CC_AES_KEY_SIZE_MAX/sizeof(uint32_t)]; -}; - -/*******************************************************************/ -/***************** MESSAGE BASED CONTEXTS **************************/ -/*******************************************************************/ - - -/* Get the address of a @member within a given @ctx address - @ctx: The context address - @type: Type of context structure - @member: Associated context field */ -#define GET_CTX_FIELD_ADDR(ctx, type, member) (ctx + offsetof(type, member)) - #endif /* _CC_CRYPTO_CTX_H_ */ |