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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-04 09:24:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 01:55:48 +0200 |
| commit | 7607bd8ff03b8af5af887931318cb2bb20361856 (patch) | |
| tree | f714390d344511d65f7b866857102fbeb1d13741 /include/crypto | |
| parent | [CRYPTO] blkcipher: Increase kmalloc amount to aligned block size (diff) | |
| download | linux-7607bd8ff03b8af5af887931318cb2bb20361856.tar.xz linux-7607bd8ff03b8af5af887931318cb2bb20361856.zip | |
[CRYPTO] blkcipher: Added blkcipher_walk_virt_block
This patch adds the helper blkcipher_walk_virt_block which is similar to
blkcipher_walk_virt but uses a supplied block size instead of the block
size of the block cipher. This is useful for CTR where the block size is
1 but we still want to walk by the block size of the underlying cipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/algapi.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 4af72dc21202..b9b05d399d2b 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -91,6 +91,7 @@ struct blkcipher_walk { u8 *iv; int flags; + unsigned int blocksize; }; extern const struct crypto_type crypto_ablkcipher_type; @@ -129,6 +130,9 @@ int blkcipher_walk_virt(struct blkcipher_desc *desc, struct blkcipher_walk *walk); int blkcipher_walk_phys(struct blkcipher_desc *desc, struct blkcipher_walk *walk); +int blkcipher_walk_virt_block(struct blkcipher_desc *desc, + struct blkcipher_walk *walk, + unsigned int blocksize); static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm) { |