network

package

v1.0.1 Latest Latest Go to latest Published: Oct 20, 2025 License: AGPL-3.0 Imports: 11 Imported by: 3

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const (

	// EmptyUDPSize is the size of an empty UDP packet
	EmptyUDPSize = 28
)

This section is empty.

func ApplyBPF(rawConn *ipv4.RawConn, server *Server, client *PeerNet)

ApplyBPF constructs a BPF program and applies it to the RawConn

func GetClientIP(dstIP net.IP) net.IP

GetClientIP gets source ip address that will be used when sending data to dstIP

func HostToAddr(hostStr string) *net.IPAddr

HostToAddr resolves a hostname, whether DNS or IP to a valid net.IPAddr

func MakePacket(payload []byte, server *Server, client *PeerNet) []byte

MakePacket constructs a request packet to send to the server

func ParseResponse(response []byte) (net.IP, uint16)

ParseResponse takes a response packet and parses it into an IP and port

func RecvDataPacket(conn *ipv4.RawConn, server *Server, client *PeerNet) ([]byte, error)

RecvDataPacket receives and unmarshals a JSON packet from server

func RecvPacket(conn *ipv4.RawConn, server *Server, client *PeerNet) ([]byte, int, error)

RecvPacket receives a UDP packet from server

func SendDataPacket(data interface{}, conn *ipv4.RawConn, server *Server, client *PeerNet) error

SendDataPacket sends a JSON payload to the Server

func SendPacket(packet []byte, conn *ipv4.RawConn, server *Server, client *PeerNet) error

SendPacket sends packet to the Server

func SetupRawConn(server *Server, client *PeerNet) *ipv4.RawConn

SetupRawConn creates an ipv4 and udp only RawConn and applies packet filtering

type PeerNet struct {
	Resolved bool
	IP       net.IP
	Port     uint16
	NewtID   string
}

PeerNet stores data about a peer's endpoint

type Server struct {
	Hostname string
	Addr     *net.IPAddr
	Port     uint16
}

Server stores data relating to the server