1 /* 2 * Cryptographic API. 3 * 4 * Compression operations. 5 * 6 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the Free 10 * Software Foundation; either version 2 of the License, or (at your option) 11 * any later version. 12 * 13 */ 14 #include <linux/types.h> 15 #include <linux/crypto.h> 16 #include <linux/errno.h> 17 #include <linux/string.h> 18 #include "internal.h" 19 20 static int crypto_compress(struct crypto_tfm *tfm, 21 const u8 *src, unsigned int slen, 22 u8 *dst, unsigned int *dlen) 23 { 24 return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst, 25 dlen); 26 } 27 28 static int crypto_decompress(struct crypto_tfm *tfm, 29 const u8 *src, unsigned int slen, 30 u8 *dst, unsigned int *dlen) 31 { 32 return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst, 33 dlen); 34 } 35 36 int crypto_init_compress_ops(struct crypto_tfm *tfm) 37 { 38 struct compress_tfm *ops = &tfm->crt_compress; 39 40 ops->cot_compress = crypto_compress; 41 ops->cot_decompress = crypto_decompress; 42 43 return 0; 44 } 45 46 void crypto_exit_compress_ops(struct crypto_tfm *tfm) 47 { 48 } 49