diff options
| author | Xuewei Niu <niuxuewei.nxw@antgroup.com> | 2025-07-08 14:36:12 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-09 19:29:52 -0700 |
| commit | f7c72265927540fb24c99fee8a54da7db537656c (patch) | |
| tree | 58875fbc067c81579e032707742a3d937c12a610 | |
| parent | f0c5827d07cb34dfcf7d8751f1681151f547a268 (diff) | |
vsock: Add support for SIOCINQ ioctl
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.nxw@antgroup.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Link: https://patch.msgid.link/20250708-siocinq-v6-2-3775f9a9e359@antgroup.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 22 |
1 files changed, 22 insertions, 0 deletions
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); + if (n_bytes < 0) { + ret = n_bytes; + break; + } + ret = put_user(n_bytes, arg); + break; + } case SIOCOUTQ: { ssize_t n_bytes; |