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authorHerbert Xu <herbert@gondor.apana.org.au>2006-05-16 22:09:29 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-06-26 17:34:39 +1000
commit6c2bb98bc33ae33c7a33a133a4cd5a06395fece5 (patch)
tree96684cd2c473cd05d651ce1fa3dd72b1b4b19b09 /crypto/des.c
parent[CRYPTO] digest: Remove unnecessary zeroing during init (diff)
downloadlinux-dev-6c2bb98bc33ae33c7a33a133a4cd5a06395fece5.tar.xz
linux-dev-6c2bb98bc33ae33c7a33a133a4cd5a06395fece5.zip
[CRYPTO] all: Pass tfm instead of ctx to algorithms
Up until now algorithms have been happy to get a context pointer since they know everything that's in the tfm already (e.g., alignment, block size). However, once we have parameterised algorithms, such information will be specific to each tfm. So the algorithm API needs to be changed to pass the tfm structure instead of the context pointer. This patch is basically a text substitution. The only tricky bit is the assembly routines that need to get the context pointer offset through asm-offsets.h. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
-rw-r--r--crypto/des.c27
1 files changed, 15 insertions, 12 deletions
diff --git a/crypto/des.c b/crypto/des.c
index 2d74cab40c3e..a9d3c235a6af 100644
--- a/crypto/des.c
+++ b/crypto/des.c
@@ -783,9 +783,10 @@ static void dkey(u32 *pe, const u8 *k)
}
}
-static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen, u32 *flags)
{
- struct des_ctx *dctx = ctx;
+ struct des_ctx *dctx = crypto_tfm_ctx(tfm);
u32 tmp[DES_EXPKEY_WORDS];
int ret;
@@ -803,9 +804,10 @@ static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
return 0;
}
-static void des_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- const u32 *K = ((struct des_ctx *)ctx)->expkey;
+ struct des_ctx *ctx = crypto_tfm_ctx(tfm);
+ const u32 *K = ctx->expkey;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
u32 L, R, A, B;
@@ -825,9 +827,10 @@ static void des_encrypt(void *ctx, u8 *dst, const u8 *src)
d[1] = cpu_to_le32(L);
}
-static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- const u32 *K = ((struct des_ctx *)ctx)->expkey + DES_EXPKEY_WORDS - 2;
+ struct des_ctx *ctx = crypto_tfm_ctx(tfm);
+ const u32 *K = ctx->expkey + DES_EXPKEY_WORDS - 2;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
u32 L, R, A, B;
@@ -860,11 +863,11 @@ static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
* property.
*
*/
-static int des3_ede_setkey(void *ctx, const u8 *key,
+static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen, u32 *flags)
{
const u32 *K = (const u32 *)key;
- struct des3_ede_ctx *dctx = ctx;
+ struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
u32 *expkey = dctx->expkey;
if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
@@ -881,9 +884,9 @@ static int des3_ede_setkey(void *ctx, const u8 *key,
return 0;
}
-static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct des3_ede_ctx *dctx = ctx;
+ struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
const u32 *K = dctx->expkey;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
@@ -912,9 +915,9 @@ static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src)
d[1] = cpu_to_le32(L);
}
-static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct des3_ede_ctx *dctx = ctx;
+ struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;