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authorAdrian-Ken Rueegsegger <ken@codelabs.ch>2008-12-03 19:57:12 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2008-12-25 11:02:18 +1100
commit14b75ba70da925a9f040a7575cb46ad7d394b117 (patch)
tree57f0a020d0afd5260cdb7cda843d32858e55a5b8 /crypto
parent808a1763cef93bf0f740d7e10dd9a2dfc4065b1a (diff)
downloadconfigs-14b75ba70da925a9f040a7575cb46ad7d394b117.tar.gz
crypto: md5 - Switch to shash
This patch changes md5 to the new shash interface. Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig2
-rw-r--r--crypto/md5.c50
2 files changed, 29 insertions, 23 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 96f8154147a..989304ca3ea 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -282,7 +282,7 @@ config CRYPTO_MD4
config CRYPTO_MD5
tristate "MD5 digest algorithm"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
help
MD5 message digest algorithm (RFC1321).
diff --git a/crypto/md5.c b/crypto/md5.c
index 39268f3d2f1..83eb5296175 100644
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -15,10 +15,10 @@
* any later version.
*
*/
+#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
-#include <linux/crypto.h>
#include <linux/types.h>
#include <asm/byteorder.h>
@@ -147,20 +147,22 @@ static inline void md5_transform_helper(struct md5_ctx *ctx)
md5_transform(ctx->hash, ctx->block);
}
-static void md5_init(struct crypto_tfm *tfm)
+static int md5_init(struct shash_desc *desc)
{
- struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+ struct md5_ctx *mctx = shash_desc_ctx(desc);
mctx->hash[0] = 0x67452301;
mctx->hash[1] = 0xefcdab89;
mctx->hash[2] = 0x98badcfe;
mctx->hash[3] = 0x10325476;
mctx->byte_count = 0;
+
+ return 0;
}
-static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
+static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
{
- struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+ struct md5_ctx *mctx = shash_desc_ctx(desc);
const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
mctx->byte_count += len;
@@ -168,7 +170,7 @@ static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
if (avail > len) {
memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
data, len);
- return;
+ return 0;
}
memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
@@ -186,11 +188,13 @@ static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
}
memcpy(mctx->block, data, len);
+
+ return 0;
}
-static void md5_final(struct crypto_tfm *tfm, u8 *out)
+static int md5_final(struct shash_desc *desc, u8 *out)
{
- struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+ struct md5_ctx *mctx = shash_desc_ctx(desc);
const unsigned int offset = mctx->byte_count & 0x3f;
char *p = (char *)mctx->block + offset;
int padding = 56 - (offset + 1);
@@ -212,30 +216,32 @@ static void md5_final(struct crypto_tfm *tfm, u8 *out)
cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(u32));
memcpy(out, mctx->hash, sizeof(mctx->hash));
memset(mctx, 0, sizeof(*mctx));
+
+ return 0;
}
-static struct crypto_alg alg = {
- .cra_name = "md5",
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct md5_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = MD5_DIGEST_SIZE,
- .dia_init = md5_init,
- .dia_update = md5_update,
- .dia_final = md5_final } }
+static struct shash_alg alg = {
+ .digestsize = MD5_DIGEST_SIZE,
+ .init = md5_init,
+ .update = md5_update,
+ .final = md5_final,
+ .descsize = sizeof(struct md5_ctx),
+ .base = {
+ .cra_name = "md5",
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
};
static int __init md5_mod_init(void)
{
- return crypto_register_alg(&alg);
+ return crypto_register_shash(&alg);
}
static void __exit md5_mod_fini(void)
{
- crypto_unregister_alg(&alg);
+ crypto_unregister_shash(&alg);
}
module_init(md5_mod_init);