#ifndef _CRYPTO_CAST6_H#define _CRYPTO_CAST6_H #include <linux/types.h>#include <linux/crypto.h>#include <crypto/cast_common.h> #define CAST6_BLOCK_SIZE 16#define CAST6_MIN_KEY_SIZE 16#define CAST6_MAX_KEY_SIZE 32 struct cast6_ctx {	u32 Km[12][4];	u8 Kr[12][4];}; int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key,		   unsigned int keylen, u32 *flags);int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); void __cast6_encrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);void __cast6_decrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src); #endif