• Herbert Xu's avatar
    crypto: aead - Fix aead_instance struct size · f5d8660a
    Herbert Xu authored
    The struct aead_instance is meant to extend struct crypto_instance
    by incorporating the extra members of struct aead_alg.  However,
    the current layout which is copied from shash/ahash does not specify
    the struct fully.  In particular only aead_alg is present.
    
    For shash/ahash this works because users there add extra headroom
    to sizeof(struct crypto_instance) when allocating the instance.
    Unfortunately for aead, this bit was lost when the new aead_instance
    was added.
    
    Rather than fixing it like shash/ahash, this patch simply expands
    struct aead_instance to contain what is supposed to be there, i.e.,
    adding struct crypto_instance.
    
    In order to not break existing AEAD users, this is done through an
    anonymous union.
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    f5d8660a
aead.h 4.21 KB