LU-9859 libcfs: move files out of libcfs/linux

[fs/lustre-release.git] / libcfs / libcfs / linux / linux-crypto-adler.c

diff --git a/libcfs/libcfs/linux/linux-crypto-adler.c b/libcfs/libcfs/linux/linux-crypto-adler.c
deleted file mode 100644 (file)
index 90f502f..0000000
--- a/libcfs/libcfs/linux/linux-crypto-adler.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/* GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please  visit http://www.xyratex.com/contact if you need additional
- * information or have any questions.
- *
- * GPL HEADER END
- */
-
-/*
- * Copyright 2012 Xyratex Technology Limited
- */
-
-/*
- * This is crypto api shash wrappers to zlib_adler32.
- */
-
-#include <linux/module.h>
-#include <linux/zutil.h>
-#include <libcfs/linux/linux-crypto.h>
-#include <crypto/internal/hash.h>
-
-#define CHKSUM_BLOCK_SIZE      1
-#define CHKSUM_DIGEST_SIZE     4
-
-static int adler32_cra_init(struct crypto_tfm *tfm)
-{
-       u32 *key = crypto_tfm_ctx(tfm);
-
-       *key = 1;
-
-       return 0;
-}
-
-static int adler32_setkey(struct crypto_shash *hash, const u8 *key,
-                         unsigned int keylen)
-{
-       u32 *mctx = crypto_shash_ctx(hash);
-
-       if (keylen != sizeof(u32)) {
-               crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
-               return -EINVAL;
-       }
-       *mctx = *(u32 *)key;
-       return 0;
-}
-
-static int adler32_init(struct shash_desc *desc)
-{
-       u32 *mctx = crypto_shash_ctx(desc->tfm);
-       u32 *cksump = shash_desc_ctx(desc);
-
-       *cksump = *mctx;
-
-       return 0;
-}
-
-static int adler32_update(struct shash_desc *desc, const u8 *data,
-                         unsigned int len)
-{
-       u32 *cksump = shash_desc_ctx(desc);
-
-       *cksump = zlib_adler32(*cksump, data, len);
-       return 0;
-}
-static int __adler32_finup(u32 *cksump, const u8 *data, unsigned int len,
-                          u8 *out)
-{
-       *(u32 *)out = zlib_adler32(*cksump, data, len);
-       return 0;
-}
-
-static int adler32_finup(struct shash_desc *desc, const u8 *data,
-                        unsigned int len, u8 *out)
-{
-       return __adler32_finup(shash_desc_ctx(desc), data, len, out);
-}
-
-static int adler32_final(struct shash_desc *desc, u8 *out)
-{
-       u32 *cksump = shash_desc_ctx(desc);
-
-       *(u32 *)out = *cksump;
-       return 0;
-}
-
-static int adler32_digest(struct shash_desc *desc, const u8 *data,
-                         unsigned int len, u8 *out)
-{
-       return __adler32_finup(crypto_shash_ctx(desc->tfm), data, len,
-                                   out);
-}
-static struct shash_alg alg = {
-       .setkey         = adler32_setkey,
-       .init           = adler32_init,
-       .update         = adler32_update,
-       .final          = adler32_final,
-       .finup          = adler32_finup,
-       .digest         = adler32_digest,
-       .descsize       = sizeof(u32),
-       .digestsize     = CHKSUM_DIGEST_SIZE,
-       .base           = {
-               .cra_name               = "adler32",
-               .cra_driver_name        = "adler32-zlib",
-               .cra_priority           = 100,
-               .cra_blocksize          = CHKSUM_BLOCK_SIZE,
-               .cra_ctxsize            = sizeof(u32),
-               .cra_module             = THIS_MODULE,
-               .cra_init               = adler32_cra_init,
-       }
-};
-
-int cfs_crypto_adler32_register(void)
-{
-       return crypto_register_shash(&alg);
-}
-
-void cfs_crypto_adler32_unregister(void)
-{
-       crypto_unregister_shash(&alg);
-}