| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { | 
| Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 24 | return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst, | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { | 
| Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 32 | return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst, | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | dlen); | 
|  | 34 | } | 
|  | 35 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | int crypto_init_compress_ops(struct crypto_tfm *tfm) | 
|  | 37 | { | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | struct compress_tfm *ops = &tfm->crt_compress; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 |  | 
|  | 40 | ops->cot_compress = crypto_compress; | 
|  | 41 | ops->cot_decompress = crypto_decompress; | 
|  | 42 |  | 
| Herbert Xu | c7fc059 | 2006-05-24 13:02:26 +1000 | [diff] [blame] | 43 | return 0; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | } | 
|  | 45 |  | 
|  | 46 | void crypto_exit_compress_ops(struct crypto_tfm *tfm) | 
|  | 47 | { | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | } |