1 #ifndef _UAPI_VSOCKMON_H
2 #define _UAPI_VSOCKMON_H
4 #include <linux/virtio_vsock.h>
7 * vsockmon is the AF_VSOCK packet capture device. Packets captured have the
10 * +-----------------------------------+
12 * | (struct af_vsockmon_hdr) |
13 * +-----------------------------------+
14 * | transport header |
15 * | (af_vsockmon_hdr->len bytes long) |
16 * +-----------------------------------+
18 * | (until end of packet) |
19 * +-----------------------------------+
21 * The vsockmon header is a transport-independent description of the packet.
22 * It duplicates some of the information from the transport header so that
23 * no transport-specific knowledge is necessary to process packets.
25 * The transport header is useful for low-level transport-specific packet
26 * analysis. Transport type is given in af_vsockmon_hdr->transport and
27 * transport header length is given in af_vsockmon_hdr->len.
29 * If af_vsockmon_hdr->op is AF_VSOCK_OP_PAYLOAD then the payload follows the
30 * transport header. Other ops do not have a payload.
33 struct af_vsockmon_hdr {
38 __le16 op; /* enum af_vsockmon_op */
39 __le16 transport; /* enum af_vsockmon_transport */
40 __le16 len; /* Transport header length */
45 AF_VSOCK_OP_UNKNOWN = 0,
46 AF_VSOCK_OP_CONNECT = 1,
47 AF_VSOCK_OP_DISCONNECT = 2,
48 AF_VSOCK_OP_CONTROL = 3,
49 AF_VSOCK_OP_PAYLOAD = 4,
52 enum af_vsockmon_transport {
53 AF_VSOCK_TRANSPORT_UNKNOWN = 0,
54 AF_VSOCK_TRANSPORT_NO_INFO = 1, /* No transport information */
56 /* Transport header type: struct virtio_vsock_hdr */
57 AF_VSOCK_TRANSPORT_VIRTIO = 2,