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    Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/crypto/compress.c

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    Revision 628 - (show annotations) (download)
    Wed Mar 4 10:48:58 2009 UTC (15 years, 3 months ago) by niro
    Original Path: alx-src/trunk/kernel26-alx/linux/crypto/compress.c
    File MIME type: text/plain
    File size: 1816 byte(s) 
    import linux sources based on 2.6.12-alx-r9:
 -using linux-2.6.12.6
 -using 2.6.12-ck6 patch set
 -using fbsplash-0.9.2-r3
 -using vesafb-tng-0.9-rc7
 -using squashfs-2.2
 -added cddvd-cmdfilter-drop.patch as ck dropped it
 -added via-epia-dri (cle266) patch
 -added zd1211-svn-32 wlan driver (http://zd1211.ath.cx/download/)
 -added debian patches to zd1211 for wep256 etc
    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 }