#ifndef _CRYPTO_CAST5_H#define _CRYPTO_CAST5_H #include <linux/types.h>#include <linux/crypto.h>#include <crypto/cast_common.h> #define CAST5_BLOCK_SIZE 8#define CAST5_MIN_KEY_SIZE 5#define CAST5_MAX_KEY_SIZE 16 struct cast5_ctx {	u32 Km[16];	u8 Kr[16];	int rr;	/* rr ? rounds = 12 : rounds = 16; (rfc 2144) */}; int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); #endif