diff options
author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2012-10-26 14:48:56 +0300 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-11-09 17:32:31 +0800 |
commit | cf582ccedad02eb9bfdcdb25adfc800dd117b428 (patch) | |
tree | 61337d49d10f40440da57a3ce49355b2b015124b /arch/x86/include/asm | |
parent | bf9c5181865f1cc12f934eac182bbd06438ffecc (diff) | |
download | blackbird-op-linux-cf582ccedad02eb9bfdcdb25adfc800dd117b428.tar.gz blackbird-op-linux-cf582ccedad02eb9bfdcdb25adfc800dd117b428.zip |
crypto: camellia-x86_64 - share common functions and move structures and function definitions to header file
Prepare camellia-x86_64 functions to be reused from AVX/AESNI implementation
module.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r-- | arch/x86/include/asm/crypto/camellia.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/x86/include/asm/crypto/camellia.h b/arch/x86/include/asm/crypto/camellia.h new file mode 100644 index 000000000000..98038add801e --- /dev/null +++ b/arch/x86/include/asm/crypto/camellia.h @@ -0,0 +1,82 @@ +#ifndef ASM_X86_CAMELLIA_H +#define ASM_X86_CAMELLIA_H + +#include <linux/kernel.h> +#include <linux/crypto.h> + +#define CAMELLIA_MIN_KEY_SIZE 16 +#define CAMELLIA_MAX_KEY_SIZE 32 +#define CAMELLIA_BLOCK_SIZE 16 +#define CAMELLIA_TABLE_BYTE_LEN 272 +#define CAMELLIA_PARALLEL_BLOCKS 2 + +struct camellia_ctx { + u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)]; + u32 key_length; +}; + +struct camellia_lrw_ctx { + struct lrw_table_ctx lrw_table; + struct camellia_ctx camellia_ctx; +}; + +struct camellia_xts_ctx { + struct camellia_ctx tweak_ctx; + struct camellia_ctx crypt_ctx; +}; + +extern int __camellia_setkey(struct camellia_ctx *cctx, + const unsigned char *key, + unsigned int key_len, u32 *flags); + +extern int lrw_camellia_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen); +extern void lrw_camellia_exit_tfm(struct crypto_tfm *tfm); + +extern int xts_camellia_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen); + +/* regular block cipher functions */ +asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +/* 2-way parallel cipher functions */ +asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk(ctx, dst, src, false); +} + +static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk(ctx, dst, src, true); +} + +static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk_2way(ctx, dst, src, false); +} + +static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk_2way(ctx, dst, src, true); +} + +/* glue helpers */ +extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src); +extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, + le128 *iv); +extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +#endif /* ASM_X86_CAMELLIA_H */ |