crypto: simd - support wrapping AEAD algorithms

Update the crypto_simd module to support wrapping AEAD algorithms.
Previously it only supported skciphers.  The code for each is similar.

I'll be converting the x86 implementations of AES-GCM, AEGIS, and MORUS
to use this.  Currently they each independently implement the same
functionality.  This will not only simplify the code, but it will also
fix the bug detected by the improved self-tests: the user-provided
aead_request is modified.  This is because these algorithms currently
reuse the original request, whereas the crypto_simd helpers build a new
request in the original request's context.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 20 insertions, 0 deletions

diff --git a/include/crypto/internal/simd.h b/include/crypto/internal/simd.h
index f18344518e32..a23b18b6ad61 100644
--- a/include/crypto/internal/simd.h
+++ b/include/crypto/internal/simd.h
@@ -6,6 +6,8 @@
 #ifndef _CRYPTO_INTERNAL_SIMD_H
 #define _CRYPTO_INTERNAL_SIMD_H
 
+/* skcipher support */
+
 struct simd_skcipher_alg;
 struct skcipher_alg;
 
@@ -22,4 +24,22 @@ int simd_register_skciphers_compat(struct skcipher_alg *algs, int count,
 void simd_unregister_skciphers(struct skcipher_alg *algs, int count,
                                struct simd_skcipher_alg **simd_algs);
 
+/* AEAD support */
+
+struct simd_aead_alg;
+struct aead_alg;
+
+struct simd_aead_alg *simd_aead_create_compat(const char *algname,
+                                              const char *drvname,
+                                              const char *basename);
+struct simd_aead_alg *simd_aead_create(const char *algname,
+                                       const char *basename);
+void simd_aead_free(struct simd_aead_alg *alg);
+
+int simd_register_aeads_compat(struct aead_alg *algs, int count,
+                               struct simd_aead_alg **simd_algs);
+
+void simd_unregister_aeads(struct aead_alg *algs, int count,
+                           struct simd_aead_alg **simd_algs);
+
 #endif /* _CRYPTO_INTERNAL_SIMD_H */