2017-02-02 23:07:22 +00:00
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package netlink
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import "net"
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// SocketID identifies a single socket.
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type SocketID struct {
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SourcePort uint16
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DestinationPort uint16
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Source net.IP
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Destination net.IP
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Interface uint32
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Cookie [2]uint32
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}
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// Socket represents a netlink socket.
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type Socket struct {
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Family uint8
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State uint8
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Timer uint8
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Retrans uint8
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ID SocketID
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Expires uint32
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RQueue uint32
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WQueue uint32
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UID uint32
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INode uint32
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}
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2023-11-15 22:05:25 +00:00
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// UnixSocket represents a netlink unix socket.
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type UnixSocket struct {
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Type uint8
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Family uint8
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State uint8
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pad uint8
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INode uint32
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Cookie [2]uint32
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}
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2024-07-05 17:04:27 +00:00
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// XDPSocket represents an XDP socket (and the common diagnosis part in
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// particular). Please note that in contrast to [UnixSocket] the XDPSocket type
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// does not feature “State” information.
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type XDPSocket struct {
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// xdp_diag_msg
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// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L21
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Family uint8
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Type uint8
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pad uint16
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Ino uint32
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Cookie [2]uint32
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}
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type XDPInfo struct {
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// XDP_DIAG_INFO/xdp_diag_info
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// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L51
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Ifindex uint32
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QueueID uint32
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// XDP_DIAG_UID
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UID uint32
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// XDP_RX_RING
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// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L56
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RxRingEntries uint32
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TxRingEntries uint32
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UmemFillRingEntries uint32
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UmemCompletionRingEntries uint32
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// XDR_DIAG_UMEM
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Umem *XDPDiagUmem
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// XDR_DIAG_STATS
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Stats *XDPDiagStats
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}
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const (
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XDP_DU_F_ZEROCOPY = 1 << iota
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)
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// XDPDiagUmem describes the umem attached to an XDP socket.
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//
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// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L62
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type XDPDiagUmem struct {
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Size uint64
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ID uint32
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NumPages uint32
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ChunkSize uint32
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Headroom uint32
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Ifindex uint32
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QueueID uint32
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Flags uint32
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Refs uint32
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}
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// XDPDiagStats contains ring statistics for an XDP socket.
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//
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// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L74
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type XDPDiagStats struct {
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RxDropped uint64
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RxInvalid uint64
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RxFull uint64
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FillRingEmpty uint64
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TxInvalid uint64
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TxRingEmpty uint64
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}
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