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[CRYPTO] all: Pass tfm instead of ctx to algorithms

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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>
This commit is contained in:
Herbert Xu
2006-05-16 22:09:29 +10:00
parent 43600106e3
commit 6c2bb98bc3
37 changed files with 349 additions and 331 deletions
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14
crypto/cipher.c
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@@ -187,7 +187,7 @@ static unsigned int cbc_process_encrypt(const struct cipher_desc *desc,
void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
@@ -195,7 +195,7 @@ static unsigned int cbc_process_encrypt(const struct cipher_desc *desc,
do {
xor(iv, src);
fn(crypto_tfm_ctx(tfm), dst, iv);
fn(tfm, dst, iv);
memcpy(iv, dst, bsize);
src += bsize;
@@ -218,7 +218,7 @@ static unsigned int cbc_process_decrypt(const struct cipher_desc *desc,
u8 *buf = (u8 *)ALIGN((unsigned long)stack, alignmask + 1);
u8 **dst_p = src == dst ? &buf : &dst;
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
@@ -227,7 +227,7 @@ static unsigned int cbc_process_decrypt(const struct cipher_desc *desc,
do {
u8 *tmp_dst = *dst_p;
fn(crypto_tfm_ctx(tfm), tmp_dst, src);
fn(tfm, tmp_dst, src);
xor(tmp_dst, iv);
memcpy(iv, src, bsize);
if (tmp_dst != dst)
@@ -245,13 +245,13 @@ static unsigned int ecb_process(const struct cipher_desc *desc, u8 *dst,
{
struct crypto_tfm *tfm = desc->tfm;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
unsigned int done = 0;
nbytes -= bsize;
do {
fn(crypto_tfm_ctx(tfm), dst, src);
fn(tfm, dst, src);
src += bsize;
dst += bsize;
@@ -268,7 +268,7 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
} else
return cia->cia_setkey(crypto_tfm_ctx(tfm), key, keylen,
return cia->cia_setkey(tfm, key, keylen,
&tfm->crt_flags);
}