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-rw-r--r--include/crypto/aead.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 1a273bc5656c..5cb0066be30b 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -109,6 +109,17 @@ struct aead_givcrypt_request {
* @decrypt: see struct ablkcipher_alg
* @geniv: see struct ablkcipher_alg
* @ivsize: see struct ablkcipher_alg
+ * @init: Initialize the cryptographic transformation object. This function
+ * is used to initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation time, right
+ * after the transformation context was allocated. In case the
+ * cryptographic hardware has some special requirements which need to
+ * be handled by software, this function shall check for the precise
+ * requirement of the transformation and put any software fallbacks
+ * in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
*
* All fields except @ivsize is mandatory and must be filled.
*/
@@ -118,6 +129,8 @@ struct aead_alg {
int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
int (*encrypt)(struct aead_request *req);
int (*decrypt)(struct aead_request *req);
+ int (*init)(struct crypto_aead *tfm);
+ void (*exit)(struct crypto_aead *tfm);
const char *geniv;