On Tue, Jul 08, 2025 at 02:36:12PM +0800, Xuewei Niu wrote:
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 <niuxuewei....@antgroup.com> --- 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 2e7a3034e965db30b6ee295370d866e6d8b1c341..bae6b89bb5fb7dd7a3a378f92097561a98a0c814 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); + if (n_bytes < 0) { + ret = n_bytes; + break; + } + ret = put_user(n_bytes, arg); + break; + } case SIOCOUTQ: { ssize_t n_bytes; -- 2.34.1
LGTM! Reviewed-by: Luigi Leonardi <leona...@redhat.com>
