LXR linux/arch/x86/include/asm/crypto/camellia.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef ASM_X86_CAMELLIA_H
   3#define ASM_X86_CAMELLIA_H
   4
   5#include <crypto/b128ops.h>
   6#include <linux/crypto.h>
   7#include <linux/kernel.h>
   8
   9#define CAMELLIA_MIN_KEY_SIZE   16
  10#define CAMELLIA_MAX_KEY_SIZE   32
  11#define CAMELLIA_BLOCK_SIZE     16
  12#define CAMELLIA_TABLE_BYTE_LEN 272
  13#define CAMELLIA_PARALLEL_BLOCKS 2
  14
  15struct crypto_skcipher;
  16
  17struct camellia_ctx {
  18        u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
  19        u32 key_length;
  20};
  21
  22struct camellia_xts_ctx {
  23        struct camellia_ctx tweak_ctx;
  24        struct camellia_ctx crypt_ctx;
  25};
  26
  27extern int __camellia_setkey(struct camellia_ctx *cctx,
  28                             const unsigned char *key,
  29                             unsigned int key_len, u32 *flags);
  30
  31extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
  32                               unsigned int keylen);
  33
  34/* regular block cipher functions */
  35asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
  36                                   const u8 *src, bool xor);
  37asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
  38                                 const u8 *src);
  39
  40/* 2-way parallel cipher functions */
  41asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  42                                        const u8 *src, bool xor);
  43asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  44                                      const u8 *src);
  45
  46/* 16-way parallel cipher functions (avx/aes-ni) */
  47asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  48                                       const u8 *src);
  49asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  50                                       const u8 *src);
  51
  52asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  53                                       const u8 *src);
  54asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
  55                                   const u8 *src, le128 *iv);
  56
  57asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  58                                       const u8 *src, le128 *iv);
  59asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  60                                       const u8 *src, le128 *iv);
  61
  62static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
  63                                    const u8 *src)
  64{
  65        __camellia_enc_blk(ctx, dst, src, false);
  66}
  67
  68static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst,
  69                                        const u8 *src)
  70{
  71        __camellia_enc_blk(ctx, dst, src, true);
  72}
  73
  74static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  75                                         const u8 *src)
  76{
  77        __camellia_enc_blk_2way(ctx, dst, src, false);
  78}
  79
  80static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst,
  81                                             const u8 *src)
  82{
  83        __camellia_enc_blk_2way(ctx, dst, src, true);
  84}
  85
  86/* glue helpers */
  87extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
  88extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
  89                               le128 *iv);
  90extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
  91                                    le128 *iv);
  92
  93extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);
  94extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);
  95
  96#endif /* ASM_X86_CAMELLIA_H */
  97