blob: e9edf852478798ce8d2ca37586b238ec015ce38b [file] [log] [blame]
Thomas Gleixner2874c5f2019-05-27 08:55:01 +02001// SPDX-License-Identifier: GPL-2.0-or-later
Linus Torvalds1da177e2005-04-16 15:20:36 -07002/*
3 * Cryptographic API.
4 *
5 * Compression operations.
6 *
7 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 */
9#include <linux/types.h>
10#include <linux/crypto.h>
11#include <linux/errno.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/string.h>
13#include "internal.h"
14
15static int crypto_compress(struct crypto_tfm *tfm,
16 const u8 *src, unsigned int slen,
17 u8 *dst, unsigned int *dlen)
18{
Herbert Xu6c2bb982006-05-16 22:09:29 +100019 return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 dlen);
21}
22
23static int crypto_decompress(struct crypto_tfm *tfm,
24 const u8 *src, unsigned int slen,
25 u8 *dst, unsigned int *dlen)
26{
Herbert Xu6c2bb982006-05-16 22:09:29 +100027 return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
Linus Torvalds1da177e2005-04-16 15:20:36 -070028 dlen);
29}
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031int crypto_init_compress_ops(struct crypto_tfm *tfm)
32{
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 struct compress_tfm *ops = &tfm->crt_compress;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35 ops->cot_compress = crypto_compress;
36 ops->cot_decompress = crypto_decompress;
Richard Hartmann0375d662010-02-16 20:31:04 +080037
Herbert Xuc7fc0592006-05-24 13:02:26 +100038 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070039}