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 <[email protected]>, 2013 31 * Copyright (C) Stefan Hajnoczi <[email protected]>, 2015 32 */ 33 34 #ifndef _UAPI_LINUX_VIRTIO_VSOCK_H 35 #define _UAPI_LINUX_VIRTIO_VOSCK_H 36 37 #include <linux/types.h> 38 #include <linux/virtio_ids.h> 39 #include <linux/virtio_config.h> 40 41 struct virtio_vsock_config { 42 __le32 guest_cid; 43 __le32 max_virtqueue_pairs; 44 }; 45 46 struct virtio_vsock_hdr { 47 __le32 src_cid; 48 __le32 src_port; 49 __le32 dst_cid; 50 __le32 dst_port; 51 __le32 len; 52 __le16 type; /* enum virtio_vsock_type */ 53 __le16 op; /* enum virtio_vsock_op */ 54 __le32 flags; 55 __le32 buf_alloc; 56 __le32 fwd_cnt; 57 }; 58 59 enum virtio_vsock_type { 60 VIRTIO_VSOCK_TYPE_STREAM = 1, 61 VIRTIO_VSOCK_TYPE_DGRAM = 2, 62 }; 63 64 enum virtio_vsock_op { 65 VIRTIO_VSOCK_OP_INVALID = 0, 66 67 /* Connect operations */ 68 VIRTIO_VSOCK_OP_REQUEST = 1, 69 VIRTIO_VSOCK_OP_RESPONSE = 2, 70 VIRTIO_VSOCK_OP_ACK = 3, 71 VIRTIO_VSOCK_OP_RST = 4, 72 VIRTIO_VSOCK_OP_SHUTDOWN = 5, 73 74 /* To send payload */ 75 VIRTIO_VSOCK_OP_RW = 6, 76 77 /* Tell the peer our credit info */ 78 VIRTIO_VSOCK_OP_CREDIT_UPDATE = 7, 79 /* Request the peer to send the credit info to us */ 80 VIRTIO_VSOCK_OP_CREDIT_REQUEST = 8, 81 }; 82 83 /* VIRTIO_VSOCK_OP_SHUTDOWN flags values */ 84 enum virtio_vsock_shutdown { 85 VIRTIO_VSOCK_SHUTDOWN_RCV = 1, 86 VIRTIO_VSOCK_SHUTDOWN_SEND = 2, 87 }; 88 89 #endif /* _UAPI_LINUX_VIRTIO_VSOCK_H */ 90