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편집 파일: vsockmon.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _VSOCKMON_H #define _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