1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Cryptographic API.
4 *
5 * Compression operations.
6 *
7 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
8 */
9 #include <linux/types.h>
10 #include <linux/crypto.h>
11 #include <linux/errno.h>
12 #include <linux/string.h>
13 #include "internal.h"
14
crypto_compress(struct crypto_tfm * tfm,const u8 * src,unsigned int slen,u8 * dst,unsigned int * dlen)15 static int crypto_compress(struct crypto_tfm *tfm,
16 const u8 *src, unsigned int slen,
17 u8 *dst, unsigned int *dlen)
18 {
19 return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
20 dlen);
21 }
22
crypto_decompress(struct crypto_tfm * tfm,const u8 * src,unsigned int slen,u8 * dst,unsigned int * dlen)23 static int crypto_decompress(struct crypto_tfm *tfm,
24 const u8 *src, unsigned int slen,
25 u8 *dst, unsigned int *dlen)
26 {
27 return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
28 dlen);
29 }
30
crypto_init_compress_ops(struct crypto_tfm * tfm)31 int crypto_init_compress_ops(struct crypto_tfm *tfm)
32 {
33 struct compress_tfm *ops = &tfm->crt_compress;
34
35 ops->cot_compress = crypto_compress;
36 ops->cot_decompress = crypto_decompress;
37
38 return 0;
39 }
40