X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=include%2Fcrypto%2Falgapi.h;h=59c3e5bd2c064cb59baa4248f75618f15270b543;hb=a8251096b427283c47e7d8f9568be6b388dd68ec;hp=fc0d575c71e0eda0798369de42258ab54032226c;hpb=ce300c7ffa61165f9bfd16e511ee0cd4114977ab;p=~andy%2Flinux

diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fc0d575c71e..59c3e5bd2c0 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -103,6 +103,23 @@ struct blkcipher_walk {
 	unsigned int blocksize;
 };
 
+struct ablkcipher_walk {
+	struct {
+		struct page *page;
+		unsigned int offset;
+	} src, dst;
+
+	struct scatter_walk	in;
+	unsigned int		nbytes;
+	struct scatter_walk	out;
+	unsigned int		total;
+	struct list_head	buffers;
+	u8			*iv_buffer;
+	u8			*iv;
+	int			flags;
+	unsigned int		blocksize;
+};
+
 extern const struct crypto_type crypto_ablkcipher_type;
 extern const struct crypto_type crypto_aead_type;
 extern const struct crypto_type crypto_blkcipher_type;
@@ -173,6 +190,12 @@ int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
 			      struct blkcipher_walk *walk,
 			      unsigned int blocksize);
 
+int ablkcipher_walk_done(struct ablkcipher_request *req,
+			 struct ablkcipher_walk *walk, int err);
+int ablkcipher_walk_phys(struct ablkcipher_request *req,
+			 struct ablkcipher_walk *walk);
+void __ablkcipher_walk_complete(struct ablkcipher_walk *walk);
+
 static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
 {
 	return PTR_ALIGN(crypto_tfm_ctx(tfm),
@@ -283,6 +306,23 @@ static inline void blkcipher_walk_init(struct blkcipher_walk *walk,
 	walk->total = nbytes;
 }
 
+static inline void ablkcipher_walk_init(struct ablkcipher_walk *walk,
+					struct scatterlist *dst,
+					struct scatterlist *src,
+					unsigned int nbytes)
+{
+	walk->in.sg = src;
+	walk->out.sg = dst;
+	walk->total = nbytes;
+	INIT_LIST_HEAD(&walk->buffers);
+}
+
+static inline void ablkcipher_walk_complete(struct ablkcipher_walk *walk)
+{
+	if (unlikely(!list_empty(&walk->buffers)))
+		__ablkcipher_walk_complete(walk);
+}
+
 static inline struct crypto_async_request *crypto_get_backlog(
 	struct crypto_queue *queue)
 {