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

   1 #ifndef ASM_X86_CAMELLIA_H
   2 #define ASM_X86_CAMELLIA_H
   3
   4 #include <linux/kernel.h>
   5 #include <linux/crypto.h>
   6
   7 #define CAMELLIA_MIN_KEY_SIZE   16
   8 #define CAMELLIA_MAX_KEY_SIZE   32
   9 #define CAMELLIA_BLOCK_SIZE     16
  10 #define CAMELLIA_TABLE_BYTE_LEN 272
  11 #define CAMELLIA_PARALLEL_BLOCKS 2
  12
  13 struct camellia_ctx {
  14         u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
  15         u32 key_length;
  16 };
  17
  18 struct camellia_lrw_ctx {
  19         struct lrw_table_ctx lrw_table;
  20         struct camellia_ctx camellia_ctx;
  21 };
  22
  23 struct camellia_xts_ctx {
  24         struct camellia_ctx tweak_ctx;
  25         struct camellia_ctx crypt_ctx;
  26 };
  27
  28 extern int __camellia_setkey(struct camellia_ctx *cctx,
  29                              const unsigned char *key,
  30                              unsigned int key_len, u32 *flags);
  31
  32 extern int lrw_camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
  33                                unsigned int keylen);
  34 extern void lrw_camellia_exit_tfm(struct crypto_tfm *tfm);
  35
  36 extern int xts_camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
  37                                unsigned int keylen);
  38
  39 /* regular block cipher functions */
  40 asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
  41                                    const u8 *src, bool xor);
  42 asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
  43                                  const u8 *src);
  44
  45 /* 2-way parallel cipher functions */
  46 asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  47                                         const u8 *src, bool xor);
  48 asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  49                                       const u8 *src);
  50
  51 /* 16-way parallel cipher functions (avx/aes-ni) */
  52 asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  53                                        const u8 *src);
  54 asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  55                                        const u8 *src);
  56
  57 asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  58                                        const u8 *src);
  59 asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
  60                                    const u8 *src, le128 *iv);
  61
  62 asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  63                                        const u8 *src, le128 *iv);
  64 asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  65                                        const u8 *src, le128 *iv);
  66
  67 static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
  68                                     const u8 *src)
  69 {
  70         __camellia_enc_blk(ctx, dst, src, false);
  71 }
  72
  73 static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst,
  74                                         const u8 *src)
  75 {
  76         __camellia_enc_blk(ctx, dst, src, true);
  77 }
  78
  79 static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  80                                          const u8 *src)
  81 {
  82         __camellia_enc_blk_2way(ctx, dst, src, false);
  83 }
  84
  85 static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst,
  86                                              const u8 *src)
  87 {
  88         __camellia_enc_blk_2way(ctx, dst, src, true);
  89 }
  90
  91 /* glue helpers */
  92 extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
  93 extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
  94                                le128 *iv);
  95 extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
  96                                     le128 *iv);
  97
  98 extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);
  99 extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);
 100
 101 #endif /* ASM_X86_CAMELLIA_H */