Documentation
¶
Index ¶
- func CheckStateExists(cpModule *C.struct_cp_module, proto layers.IPProtocol, srcPort uint16, ...) bool
- func GetCurrentTime() uint64
- func GetLayerCount(cpModule *C.struct_cp_module) (uint32, uint32)
- func GetStateDeadline(cpModule *C.struct_cp_module, proto layers.IPProtocol, srcPort uint16, ...) uint64
- func InsertNewLayer(cpModule *C.struct_cp_module)
- func TrimStaleLayers(cpModule *C.struct_cp_module, now uint64)
- type CursorResult
- type StateValueSnapshot
- type SyncFrameOption
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func CheckStateExists ¶
func CheckStateExists( cpModule *C.struct_cp_module, proto layers.IPProtocol, srcPort uint16, dstPort uint16, srcAddr string, dstAddr string, ) bool
CheckStateExists checks if a state exists in the fwmap
func GetCurrentTime ¶
func GetCurrentTime() uint64
GetCurrentTime returns current time in nanoseconds
func GetLayerCount ¶
func GetLayerCount(cpModule *C.struct_cp_module) (uint32, uint32)
GetLayerCount returns the number of layers in both IPv4 and IPv6 maps
func GetStateDeadline ¶
func GetStateDeadline( cpModule *C.struct_cp_module, proto layers.IPProtocol, srcPort uint16, dstPort uint16, srcAddr string, dstAddr string, ) uint64
GetStateDeadline returns the deadline of a state entry
func InsertNewLayer ¶
func InsertNewLayer(cpModule *C.struct_cp_module)
InsertNewLayer inserts a new layer using the C API
func TrimStaleLayers ¶
func TrimStaleLayers(cpModule *C.struct_cp_module, now uint64)
TrimStaleLayers trims stale layers using the C API
Types ¶
type CursorResult ¶
type CursorResult struct {
Idx uint32
Proto uint16
SrcPort uint16
DstPort uint16
SrcAddr uint32
DstAddr uint32
Flags uint8
External bool
CreatedAt uint64
UpdatedAt uint64
PktForward uint64
PktBackward uint64
}
CursorResult holds data from a single cursor entry, copied into Go memory.
type StateValueSnapshot ¶
type StateValueSnapshot struct {
Found bool
External bool
FlagsRaw uint8
CreatedAt uint64
UpdatedAt uint64
PacketsForward uint64
PacketsBackward uint64
Deadline uint64
}
StateValueSnapshot is a Go-side snapshot of a fw_state_value entry.
func GetStateValue ¶
func GetStateValue( cpModule *C.struct_cp_module, proto layers.IPProtocol, srcPort uint16, dstPort uint16, srcAddr string, dstAddr string, ) StateValueSnapshot
GetStateValue reads the raw fw_state_value for a given 5-tuple via layermap_get_value_and_deadline. Returns Found=false if the state does not exist.
type SyncFrameOption ¶
type SyncFrameOption func(*C.struct_fw_state_sync_frame)
SyncFrameOption is a functional option for createSyncFrame
func WithFrameFib ¶
func WithFrameFib(fib uint8) SyncFrameOption
WithFrameFib sets fib (direction marker: 0 = forward, 1 = backward)
func WithFrameFlags ¶
func WithFrameFlags(flags uint8) SyncFrameOption
WithFrameFlags sets raw flags byte in the sync frame. `flags` is a union exposed to cgo as [1]byte, so we write through it directly.
Source Files