diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /crypto/compress.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'crypto/compress.c')
-rw-r--r-- | crypto/compress.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/crypto/compress.c b/crypto/compress.c new file mode 100644 index 000000000000..eb36d9364da3 --- /dev/null +++ b/crypto/compress.c | |||
@@ -0,0 +1,63 @@ | |||
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 <asm/scatterlist.h> | ||
18 | #include <linux/string.h> | ||
19 | #include "internal.h" | ||
20 | |||
21 | static int crypto_compress(struct crypto_tfm *tfm, | ||
22 | const u8 *src, unsigned int slen, | ||
23 | u8 *dst, unsigned int *dlen) | ||
24 | { | ||
25 | return tfm->__crt_alg->cra_compress.coa_compress(crypto_tfm_ctx(tfm), | ||
26 | src, slen, dst, | ||
27 | dlen); | ||
28 | } | ||
29 | |||
30 | static int crypto_decompress(struct crypto_tfm *tfm, | ||
31 | const u8 *src, unsigned int slen, | ||
32 | u8 *dst, unsigned int *dlen) | ||
33 | { | ||
34 | return tfm->__crt_alg->cra_compress.coa_decompress(crypto_tfm_ctx(tfm), | ||
35 | src, slen, dst, | ||
36 | dlen); | ||
37 | } | ||
38 | |||
39 | int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags) | ||
40 | { | ||
41 | return flags ? -EINVAL : 0; | ||
42 | } | ||
43 | |||
44 | int crypto_init_compress_ops(struct crypto_tfm *tfm) | ||
45 | { | ||
46 | int ret = 0; | ||
47 | struct compress_tfm *ops = &tfm->crt_compress; | ||
48 | |||
49 | ret = tfm->__crt_alg->cra_compress.coa_init(crypto_tfm_ctx(tfm)); | ||
50 | if (ret) | ||
51 | goto out; | ||
52 | |||
53 | ops->cot_compress = crypto_compress; | ||
54 | ops->cot_decompress = crypto_decompress; | ||
55 | |||
56 | out: | ||
57 | return ret; | ||
58 | } | ||
59 | |||
60 | void crypto_exit_compress_ops(struct crypto_tfm *tfm) | ||
61 | { | ||
62 | tfm->__crt_alg->cra_compress.coa_exit(crypto_tfm_ctx(tfm)); | ||
63 | } | ||