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1/*2 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so3 * anyone can use the definitions to implement compatible drivers/servers:4 *5 *6 * Redistribution and use in source and binary forms, with or without7 * modification, are permitted provided that the following conditions8 * are met:9 * 1. Redistributions of source code must retain the above copyright10 * notice, this list of conditions and the following disclaimer.11 * 2. Redistributions in binary form must reproduce the above copyright12 * notice, this list of conditions and the following disclaimer in the13 * documentation and/or other materials provided with the distribution.14 * 3. Neither the name of IBM nor the names of its contributors15 * may be used to endorse or promote products derived from this software16 * 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, THE19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE20 * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF27 * SUCH DAMAGE.28 *29 * Copyright (C) Red Hat, Inc., 2013-201530 * Copyright (C) Asias He <asias@redhat.com>, 201331 * Copyright (C) Stefan Hajnoczi <stefanha@redhat.com>, 201532 */33 34#ifndef _UAPI_LINUX_VIRTIO_VSOCK_H35#define _UAPI_LINUX_VIRTIO_VSOCK_H36 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 */105