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