vppn/peer/controlmessage.go
2025-03-01 17:29:43 +01:00

65 lines
1.2 KiB
Go

package peer
import (
"net/netip"
"vppn/m"
)
// ----------------------------------------------------------------------------
type controlMsg[T any] struct {
SrcIP byte
SrcAddr netip.AddrPort
Packet T
}
func parseControlMsg(srcIP byte, srcAddr netip.AddrPort, buf []byte) (any, error) {
switch buf[0] {
case packetTypeInit:
packet, err := parsePacketInit(buf)
return controlMsg[packetInit]{
SrcIP: srcIP,
SrcAddr: srcAddr,
Packet: packet,
}, err
case packetTypeSyn:
packet, err := parsePacketSyn(buf)
return controlMsg[packetSyn]{
SrcIP: srcIP,
SrcAddr: srcAddr,
Packet: packet,
}, err
case packetTypeAck:
packet, err := parsePacketAck(buf)
return controlMsg[packetAck]{
SrcIP: srcIP,
SrcAddr: srcAddr,
Packet: packet,
}, err
case packetTypeProbe:
packet, err := parsePacketProbe(buf)
return controlMsg[packetProbe]{
SrcIP: srcIP,
SrcAddr: srcAddr,
Packet: packet,
}, err
default:
return nil, errUnknownPacketType
}
}
// ----------------------------------------------------------------------------
type peerUpdateMsg struct {
Peer *m.Peer
}
// ----------------------------------------------------------------------------
type pingTimerMsg struct{}