Re: [RESEND PATCH net-next v4 1/4] vsock: Add support for SIOCINQ ioctl
From: Stefano Garzarella <sgarzare@redhat.com>
Date: 2025-07-02 09:56:28
Also in:
kvm, lkml, virtualization
On Mon, Jun 30, 2025 at 03:57:24PM +0800, Xuewei Niu wrote:
quoted hunk ↗ jump to hunk
Add support for SIOCINQ ioctl, indicating the length of bytes unread in the socket. The value is obtained from `vsock_stream_has_data()`. Signed-off-by: Xuewei Niu <redacted> --- net/vmw_vsock/af_vsock.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 2e7a3034e965..bae6b89bb5fb 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c@@ -1389,6 +1389,28 @@ static int vsock_do_ioctl(struct socket *sock, unsigned int cmd,vsk = vsock_sk(sk); switch (cmd) { + case SIOCINQ: { + ssize_t n_bytes; + + if (!vsk->transport) { + ret = -EOPNOTSUPP; + break; + } + + if (sock_type_connectible(sk->sk_type) && + sk->sk_state == TCP_LISTEN) { + ret = -EINVAL; + break; + } + + n_bytes = vsock_stream_has_data(vsk);
This patch should go after we fixed vsock_stream_has_data() for hyper-v. The rest LGTM! Thanks, Stefano
+ if (n_bytes < 0) {
+ ret = n_bytes;
+ break;
+ }
+ ret = put_user(n_bytes, arg);
+ break;
+ }
case SIOCOUTQ: {
ssize_t n_bytes;
--
2.34.1