1 #ifndef ASM_X86_TWOFISH_H
2 #define ASM_X86_TWOFISH_H
3 
4 #include <linux/crypto.h>
5 #include <crypto/twofish.h>
6 #include <crypto/lrw.h>
7 #include <crypto/b128ops.h>
8 
9 struct twofish_lrw_ctx {
10 	struct lrw_table_ctx lrw_table;
11 	struct twofish_ctx twofish_ctx;
12 };
13 
14 struct twofish_xts_ctx {
15 	struct twofish_ctx tweak_ctx;
16 	struct twofish_ctx crypt_ctx;
17 };
18 
19 /* regular block cipher functions from twofish_x86_64 module */
20 asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst,
21 				const u8 *src);
22 asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst,
23 				const u8 *src);
24 
25 /* 3-way parallel cipher functions */
26 asmlinkage void __twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
27 				       const u8 *src, bool xor);
28 asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst,
29 				     const u8 *src);
30 
31 /* helpers from twofish_x86_64-3way module */
32 extern void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src);
33 extern void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src,
34 				le128 *iv);
35 extern void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src,
36 				     le128 *iv);
37 
38 extern int lrw_twofish_setkey(struct crypto_tfm *tfm, const u8 *key,
39 			      unsigned int keylen);
40 
41 extern void lrw_twofish_exit_tfm(struct crypto_tfm *tfm);
42 
43 extern int xts_twofish_setkey(struct crypto_tfm *tfm, const u8 *key,
44 			      unsigned int keylen);
45 
46 #endif /* ASM_X86_TWOFISH_H */
47