* src/gcrypt.h.in (GCRY_CIPHER_EXTENDED): New enum value.
* cipher/cipher-aeswrap.c (wrap): New.
(_gcry_cipher_keywrap_encrypt, unwrap): Use wrap.
(_gcry_cipher_keywrap_encrypt_padding): New.
(_gcry_cipher_keywrap_decrypt): Use unwrap.
(_gcry_cipher_keywrap_decrypt_padding): New.
* cipher/cipher-internal.h: Add declarations.
* cipher/cipher.c (_gcry_cipher_open_internal): Support
GCRY_CIPHER_EXTENDED.
(_gcry_cipher_setup_mode_ops): Extend for GCRY_CIPHER_MODE_AESWRAP.
* tests/aeswrap.c: Add two tests from RFC5649.