diff options
Diffstat (limited to '')
| -rw-r--r-- | crypto/algif_skcipher.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index e2c8ab40..5c112b24 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -61,8 +61,8 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, int err = 0; size_t len = 0; - if (!ctx->used) { - err = af_alg_wait_for_data(sk, flags); + if (!ctx->init || (ctx->more && ctx->used < bs)) { + err = af_alg_wait_for_data(sk, flags, bs); if (err) return err; } @@ -74,14 +74,10 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, return PTR_ERR(areq); /* convert iovecs of output buffers into RX SGL */ - err = af_alg_get_rsgl(sk, msg, flags, areq, -1, &len); + err = af_alg_get_rsgl(sk, msg, flags, areq, ctx->used, &len); if (err) goto free; - /* Process only as much RX buffers for which we have TX data */ - if (len > ctx->used) - len = ctx->used; - /* * If more buffers are to be expected to be processed, process only * full block size buffers. @@ -192,11 +188,9 @@ static struct proto_ops algif_skcipher_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = skcipher_sendmsg, @@ -215,7 +209,7 @@ static int skcipher_check_key(struct socket *sock) struct alg_sock *ask = alg_sk(sk); lock_sock(sk); - if (ask->refcnt) + if (!atomic_read(&ask->nokey_refcnt)) goto unlock_child; psk = ask->parent; @@ -227,11 +221,8 @@ static int skcipher_check_key(struct socket *sock) if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) goto unlock; - if (!pask->refcnt++) - sock_hold(psk); - - ask->refcnt = 1; - sock_put(psk); + atomic_dec(&pask->nokey_refcnt); + atomic_set(&ask->nokey_refcnt, 0); err = 0; @@ -288,11 +279,9 @@ static struct proto_ops algif_skcipher_ops_nokey = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = skcipher_sendmsg_nokey, |