netdev - Re: [RFC v2 3/3] vsockmon: Add vsock hooks

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Date:	Thu, 30 Jun 2016 11:55:27 +0100
From:	Stefan Hajnoczi <stefanha@...hat.com>
To:	ggarcia@...a.uab.cat
Cc:	netdev@...r.kernel.org, jhansen@...are.com
Subject: Re: [RFC v2 3/3] vsockmon: Add vsock hooks

On Wed, Jun 22, 2016 at 06:11:02PM +0200, ggarcia@...a.uab.cat wrote:
> +	hdr = (struct af_vsockmon_hdr *) skb_push(skb, sizeof(*hdr));
> +
> +	hdr->src_cid = pkt->hdr.src_cid;
> +	hdr->src_port = pkt->hdr.src_port;
> +	hdr->dst_cid = pkt->hdr.dst_cid;
> +	hdr->dst_port = pkt->hdr.dst_port;
> +	hdr->t = AF_VSOCK_T_VIRTIO;
> +
> +	switch(pkt->hdr.op) {
> +		case VIRTIO_VSOCK_OP_REQUEST:
> +		case VIRTIO_VSOCK_OP_RESPONSE:
> +			hdr->op = AF_VSOCK_OP_CONNECT;
> +			break;
> +		case VIRTIO_VSOCK_OP_RST:
> +		case VIRTIO_VSOCK_OP_SHUTDOWN:
> +			hdr->op = AF_VSOCK_OP_DISCONNECT;
> +			break;
> +		case VIRTIO_VSOCK_OP_RW:
> +			hdr->op = AF_VSOCK_OP_PAYLOAD;
> +			break;
> +		case VIRTIO_VSOCK_OP_CREDIT_UPDATE:
> +		case VIRTIO_VSOCK_OP_CREDIT_REQUEST:
> +			hdr->op = AF_VSOCK_OP_CONTROL;
> +			break;
> +		default:
> +			hdr->op = AF_VSOCK_OP_UNKNOWN;
> +			break;
> +	}

hdr->t and hdr->op need cpu_to_le*() to ensure little-endianness.

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