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 
crypto_compress(struct crypto_tfm * tfm,const u8 * src,unsigned int slen,u8 * dst,unsigned int * dlen)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 
crypto_decompress(struct crypto_tfm * tfm,const u8 * src,unsigned int slen,u8 * dst,unsigned int * dlen)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 
crypto_init_compress_ops(struct crypto_tfm * tfm)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