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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-30 00:23:49 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-06-18 17:19:44 +1000 |
| commit | f3c802a1f30013f8f723b62d7fa49eb9e991da23 (patch) | |
| tree | d0cc454c65a9ee0a9dc741c3ce32969a1b28be8a /include/crypto | |
| parent | 1532e31f5098a220c920303213017b11df777c0b (diff) | |
| download | linux-f3c802a1f30013f8f723b62d7fa49eb9e991da23.tar.gz | |
crypto: algif_aead - Only wake up when ctx->more is zero
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>
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 088c1ded2714..ee6412314f8f 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, |