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-rw-r--r--include/crypto/algapi.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fc0d575c71e0..59c3e5bd2c06 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)
{

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