62 строки
1.9 KiB
C
62 строки
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
#ifndef _UAPI_VSOCKMON_H
|
|
#define _UAPI_VSOCKMON_H
|
|
|
|
#include <linux/virtio_vsock.h>
|
|
|
|
/*
|
|
* vsockmon is the AF_VSOCK packet capture device. Packets captured have the
|
|
* following layout:
|
|
*
|
|
* +-----------------------------------+
|
|
* | vsockmon header |
|
|
* | (struct af_vsockmon_hdr) |
|
|
* +-----------------------------------+
|
|
* | transport header |
|
|
* | (af_vsockmon_hdr->len bytes long) |
|
|
* +-----------------------------------+
|
|
* | payload |
|
|
* | (until end of packet) |
|
|
* +-----------------------------------+
|
|
*
|
|
* The vsockmon header is a transport-independent description of the packet.
|
|
* It duplicates some of the information from the transport header so that
|
|
* no transport-specific knowledge is necessary to process packets.
|
|
*
|
|
* The transport header is useful for low-level transport-specific packet
|
|
* analysis. Transport type is given in af_vsockmon_hdr->transport and
|
|
* transport header length is given in af_vsockmon_hdr->len.
|
|
*
|
|
* If af_vsockmon_hdr->op is AF_VSOCK_OP_PAYLOAD then the payload follows the
|
|
* transport header. Other ops do not have a payload.
|
|
*/
|
|
|
|
struct af_vsockmon_hdr {
|
|
__le64 src_cid;
|
|
__le64 dst_cid;
|
|
__le32 src_port;
|
|
__le32 dst_port;
|
|
__le16 op; /* enum af_vsockmon_op */
|
|
__le16 transport; /* enum af_vsockmon_transport */
|
|
__le16 len; /* Transport header length */
|
|
__u8 reserved[2];
|
|
};
|
|
|
|
enum af_vsockmon_op {
|
|
AF_VSOCK_OP_UNKNOWN = 0,
|
|
AF_VSOCK_OP_CONNECT = 1,
|
|
AF_VSOCK_OP_DISCONNECT = 2,
|
|
AF_VSOCK_OP_CONTROL = 3,
|
|
AF_VSOCK_OP_PAYLOAD = 4,
|
|
};
|
|
|
|
enum af_vsockmon_transport {
|
|
AF_VSOCK_TRANSPORT_UNKNOWN = 0,
|
|
AF_VSOCK_TRANSPORT_NO_INFO = 1, /* No transport information */
|
|
|
|
/* Transport header type: struct virtio_vsock_hdr */
|
|
AF_VSOCK_TRANSPORT_VIRTIO = 2,
|
|
};
|
|
|
|
#endif
|