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
  15 struct crypto_skcipher;
  16
  17 struct camellia_ctx {
  18         u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
  19         u32 key_length;
  20 };
  21
  22 struct camellia_xts_ctx {
  23         struct camellia_ctx tweak_ctx;
  24         struct camellia_ctx crypt_ctx;
  25 };
  26
  27 extern int __camellia_setkey(struct camellia_ctx *cctx,
  28                              const unsigned char *key,
  29                              unsigned int key_len, u32 *flags);
  30
  31 extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
  32                                unsigned int keylen);
  33
  34 /* regular block cipher functions */
  35 asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
  36                                    const u8 *src, bool xor);
  37 asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
  38                                  const u8 *src);
  39
  40 /* 2-way parallel cipher functions */
  41 asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
  42                                         const u8 *src, bool xor);
  43 asmlinkage 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) */
  47 asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  48                                        const u8 *src);
  49 asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  50                                        const u8 *src);
  51
  52 asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  53                                        const u8 *src);
  54 asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
  55                                    const u8 *src, le128 *iv);
  56
  57 asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
  58                                        const u8 *src, le128 *iv);
  59 asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
  60                                        const u8 *src, le128 *iv);
  61
  62 static 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
  68 static 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
  74 static 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
  80 static 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 */
  87 extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
  88 extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
  89                                le128 *iv);
  90 extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
  91                                     le128 *iv);
  92
  93 extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);
  94 extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);
  95
  96 #endif /* ASM_X86_CAMELLIA_H */