[CRYPTO] aead: Make authsize a run-time parameter

[linux-3.10.git] / include / linux / crypto.h

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index f56ae8721bc96280f1a3c14418dd41e6e394679f..48aa5959abbb5b4b237330ebf920308e33c6efed 100644 (file)
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -187,11 +187,12 @@ struct ablkcipher_alg {
 struct aead_alg {
        int (*setkey)(struct crypto_aead *tfm, const u8 *key,
                      unsigned int keylen);
+       int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
        int (*encrypt)(struct aead_request *req);
        int (*decrypt)(struct aead_request *req);
 
        unsigned int ivsize;
-       unsigned int authsize;
+       unsigned int maxauthsize;
 };
 
 struct blkcipher_alg {
@@ -754,6 +755,8 @@ static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
        return crypto_aead_crt(tfm)->setkey(tfm, key, keylen);
 }
 
+int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
+
 static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
 {
        return __crypto_aead_cast(req->base.tfm);