| 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 | } |