| Message ID | 5195949.2IIqD2tWoo@tachyon.chronox.de (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Herbert Xu |
| Headers | show |
On Sun, Dec 07, 2014 at 11:21:42PM +0100, Stephan Mueller wrote: > Use setsockopt on the tfm FD to provide the authentication tag size for > an AEAD cipher. This is achieved by adding a callback function which is > intended to be used by the AEAD AF_ALG implementation. > > The optlen argument of the setsockopt specifies the authentication tag > size to be used with the AEAD tfm. > > Signed-off-by: Stephan Mueller <smueller@chronox.de> Patch applied.
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 68ff113..547c369 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -215,6 +215,13 @@ static int alg_setsockopt(struct socket *sock, int level, int optname, goto unlock; err = alg_setkey(sk, optval, optlen); + break; + case ALG_SET_AEAD_AUTHSIZE: + if (sock->state == SS_CONNECTED) + goto unlock; + if (!type->setauthsize) + goto unlock; + err = type->setauthsize(ask->private, optlen); } unlock: diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index cd62bf4..5c7b6c5 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -50,6 +50,7 @@ struct af_alg_type { void (*release)(void *private); int (*setkey)(void *private, const u8 *key, unsigned int keylen); int (*accept)(void *private, struct sock *sk); + int (*setauthsize)(void *private, unsigned int authsize); struct proto_ops *ops; struct module *owner;
Use setsockopt on the tfm FD to provide the authentication tag size for an AEAD cipher. This is achieved by adding a callback function which is intended to be used by the AEAD AF_ALG implementation. The optlen argument of the setsockopt specifies the authentication tag size to be used with the AEAD tfm. Signed-off-by: Stephan Mueller <smueller@chronox.de> --- crypto/af_alg.c | 7 +++++++ include/crypto/if_alg.h | 1 + 2 files changed, 8 insertions(+)