diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-30 00:23:49 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 13:05:30 +0200 |
| commit | cf368b876f44c984bf417bb6e2f8bdf1e441bd3b (patch) | |
| tree | e15f9c98054e7d9a2d60d74b2317ad884d6235c3 /include/crypto | |
| parent | bb0bba78d365ef504cbb5f0947e4851ec402707f (diff) | |
crypto: algif_aead - Only wake up when ctx->more is zero
[ Upstream commit f3c802a1f30013f8f723b62d7fa49eb9e991da23 ]
AEAD does not support partial requests so we must not wake up
while ctx->more is set. In order to distinguish between the
case of no data sent yet and a zero-length request, a new init
flag has been added to ctx.
SKCIPHER has also been modified to ensure that at least a block
of data is available if there is more data to come.
Fixes: 2d97591ef43d ("crypto: af_alg - consolidation of...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/if_alg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index 864849e942c4..c1a8d4a41bb1 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -135,6 +135,7 @@ struct af_alg_async_req { * SG? * @enc: Cryptographic operation to be performed when * recvmsg is invoked. + * @init: True if metadata has been sent. * @len: Length of memory allocated for this data structure. */ struct af_alg_ctx { @@ -151,6 +152,7 @@ struct af_alg_ctx { bool more; bool merge; bool enc; + bool init; unsigned int len; }; @@ -226,7 +228,7 @@ unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset); void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, size_t dst_offset); void af_alg_wmem_wakeup(struct sock *sk); -int af_alg_wait_for_data(struct sock *sk, unsigned flags); +int af_alg_wait_for_data(struct sock *sk, unsigned flags, unsigned min); int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, unsigned int ivsize); ssize_t af_alg_sendpage(struct socket *sock, struct page *page, |