netdev - Re: [RFC 1/3] uapi: vhost: add vhost-net netfilter offload API

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20260208123029-mutt-send-email-mst@kernel.org>
Date: Sun, 8 Feb 2026 12:32:11 -0500
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Cindy Lu <lulu@...hat.com>
Cc: jasowang@...hat.com, kvm@...r.kernel.org,
	virtualization@...ts.linux.dev, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/3] uapi: vhost: add vhost-net netfilter offload API

On Sun, Feb 08, 2026 at 10:32:22PM +0800, Cindy Lu wrote:
> Add VHOST_NET_SET_FILTER ioctl and the filter socket protocol used for
> vhost-net filter offload.
> 
> Signed-off-by: Cindy Lu <lulu@...hat.com>
> ---
>  include/uapi/linux/vhost.h | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
> index c57674a6aa0d..d9a0ca7a3df0 100644
> --- a/include/uapi/linux/vhost.h
> +++ b/include/uapi/linux/vhost.h
> @@ -131,6 +131,26 @@
>   * device.  This can be used to stop the ring (e.g. for migration). */
>  #define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file)
>  
> +/* VHOST_NET filter offload (kernel vhost-net dataplane through QEMU netfilter) */
> +struct vhost_net_filter {
> +	__s32 fd;
> +};
> +
> +enum {
> +	VHOST_NET_FILTER_MSG_REQUEST = 1,
> +};
> +
> +#define VHOST_NET_FILTER_DIRECTION_TX 1
> +
> +struct vhost_net_filter_msg {
> +	__u16 type;
> +	__u16 direction;
> +	__u32 len;
> +};
> +
> +
> +#define VHOST_NET_SET_FILTER _IOW(VHOST_VIRTIO, 0x31, struct vhost_net_filter)
> +
>  /* VHOST_SCSI specific defines */

can we get some info on what this is supposed to be doing, pls?
it belongs here where userspace devs can find it, not hidden
in code.


>  
>  #define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
> -- 
> 2.52.0