cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

virtio_vsock.h (3363B)

      1/*
      2 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
      3 * anyone can use the definitions to implement compatible drivers/servers:
      4 *
      5 *
      6 * Redistribution and use in source and binary forms, with or without
      7 * modification, are permitted provided that the following conditions
      8 * are met:
      9 * 1. Redistributions of source code must retain the above copyright
     10 *    notice, this list of conditions and the following disclaimer.
     11 * 2. Redistributions in binary form must reproduce the above copyright
     12 *    notice, this list of conditions and the following disclaimer in the
     13 *    documentation and/or other materials provided with the distribution.
     14 * 3. Neither the name of IBM nor the names of its contributors
     15 *    may be used to endorse or promote products derived from this software
     16 *    without specific prior written permission.
     17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
     18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20 * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
     21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27 * SUCH DAMAGE.
     28 *
     29 * Copyright (C) Red Hat, Inc., 2013-2015
     30 * Copyright (C) Asias He <asias@redhat.com>, 2013
     31 * Copyright (C) Stefan Hajnoczi <stefanha@redhat.com>, 2015
     32 */
     33
     34#ifndef _UAPI_LINUX_VIRTIO_VSOCK_H
     35#define _UAPI_LINUX_VIRTIO_VSOCK_H
     36
     37#include <linux/types.h>
     38#include <linux/virtio_ids.h>
     39#include <linux/virtio_config.h>
     40
     41/* The feature bitmap for virtio vsock */
     42#define VIRTIO_VSOCK_F_SEQPACKET	1	/* SOCK_SEQPACKET supported */
     43
     44struct virtio_vsock_config {
     45	__le64 guest_cid;
     46} __attribute__((packed));
     47
     48enum virtio_vsock_event_id {
     49	VIRTIO_VSOCK_EVENT_TRANSPORT_RESET = 0,
     50};
     51
     52struct virtio_vsock_event {
     53	__le32 id;
     54} __attribute__((packed));
     55
     56struct virtio_vsock_hdr {
     57	__le64	src_cid;
     58	__le64	dst_cid;
     59	__le32	src_port;
     60	__le32	dst_port;
     61	__le32	len;
     62	__le16	type;		/* enum virtio_vsock_type */
     63	__le16	op;		/* enum virtio_vsock_op */
     64	__le32	flags;
     65	__le32	buf_alloc;
     66	__le32	fwd_cnt;
     67} __attribute__((packed));
     68
     69enum virtio_vsock_type {
     70	VIRTIO_VSOCK_TYPE_STREAM = 1,
     71	VIRTIO_VSOCK_TYPE_SEQPACKET = 2,
     72};
     73
     74enum virtio_vsock_op {
     75	VIRTIO_VSOCK_OP_INVALID = 0,
     76
     77	/* Connect operations */
     78	VIRTIO_VSOCK_OP_REQUEST = 1,
     79	VIRTIO_VSOCK_OP_RESPONSE = 2,
     80	VIRTIO_VSOCK_OP_RST = 3,
     81	VIRTIO_VSOCK_OP_SHUTDOWN = 4,
     82
     83	/* To send payload */
     84	VIRTIO_VSOCK_OP_RW = 5,
     85
     86	/* Tell the peer our credit info */
     87	VIRTIO_VSOCK_OP_CREDIT_UPDATE = 6,
     88	/* Request the peer to send the credit info to us */
     89	VIRTIO_VSOCK_OP_CREDIT_REQUEST = 7,
     90};
     91
     92/* VIRTIO_VSOCK_OP_SHUTDOWN flags values */
     93enum virtio_vsock_shutdown {
     94	VIRTIO_VSOCK_SHUTDOWN_RCV = 1,
     95	VIRTIO_VSOCK_SHUTDOWN_SEND = 2,
     96};
     97
     98/* VIRTIO_VSOCK_OP_RW flags values */
     99enum virtio_vsock_rw {
    100	VIRTIO_VSOCK_SEQ_EOM = 1,
    101	VIRTIO_VSOCK_SEQ_EOR = 2,
    102};
    103
    104#endif /* _UAPI_LINUX_VIRTIO_VSOCK_H */