util

Documentation

Index

• Constants
• func ConvertAllowedIPs(allowedIPs []string) ([]net.IPNet, error)
• func GetPublicEndpoint(ctx context.Context, conn *net.UDPConn, servers []string) (*net.UDPAddr, error)

Constants

const (
	TCPProtocol = "tcp"
	UDPProtocol = "udp"
)

const (
	UDPMaxBuffer       = 1500
	DefaultSTUNTimeout = 2 * time.Second
)

Functions

func ConvertAllowedIPs

func ConvertAllowedIPs(allowedIPs []string) ([]net.IPNet, error)

ConvertAllowedIPs takes a slice of CIDR strings and converts them to a slice of net.IPNet. It returns an error if any string is not a valid CIDR.

func GetPublicEndpoint

func GetPublicEndpoint(ctx context.Context, conn *net.UDPConn, servers []string) (*net.UDPAddr, error)

GetPublicEndpoint attempts to discover the public-facing UDP address of the local machine by querying a list of STUN servers. It sends a STUN Binding Request through the provided UDP connection and returns the first successful response.