[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>
diff --git a/crypto/md5.c b/crypto/md5.c
index 7f041ae..93d18e8 100644
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -147,9 +147,9 @@
md5_transform(ctx->hash, ctx->block);
}
-static void md5_init(void *ctx)
+static void md5_init(struct crypto_tfm *tfm)
{
- struct md5_ctx *mctx = ctx;
+ struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
mctx->hash[0] = 0x67452301;
mctx->hash[1] = 0xefcdab89;
@@ -158,9 +158,9 @@
mctx->byte_count = 0;
}
-static void md5_update(void *ctx, const u8 *data, unsigned int len)
+static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
{
- struct md5_ctx *mctx = ctx;
+ struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
mctx->byte_count += len;
@@ -188,9 +188,9 @@
memcpy(mctx->block, data, len);
}
-static void md5_final(void *ctx, u8 *out)
+static void md5_final(struct crypto_tfm *tfm, u8 *out)
{
- struct md5_ctx *mctx = ctx;
+ struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
const unsigned int offset = mctx->byte_count & 0x3f;
char *p = (char *)mctx->block + offset;
int padding = 56 - (offset + 1);