wireguard

type Interface struct {
	// contains filtered or unexported fields
}

type InterfaceConfig struct {
	// Outside is the connection that will be used to send and receive encrypted
	// packets with peers. It will be closed if Close is called on the Interface.
	Outside UDPConn

	// Inside is the interface that will be used to read plaintext packets
	// destined for peers and write decrypted packets received from peers. Each
	// Read must return a single IP packet to send to a peer, and each Write
	// will provide a single received IP packet.
	Inside io.ReadWriter

	// PrivateKey holds the static Curve25519 private key for the interface. If
	// set, it must be exactly 32 random bytes.
	PrivateKey []byte

	// PresharedKey holds an optional pre-shared key to use during handshakes.
	// If set, it must be exactly 32 random bytes.
	PresharedKey []byte

	// Peers is the initial set of peers that the interface will communicate
	// with.
	Peers []*Peer
}

type Peer struct {
	// PublicKey is the static Curve25519 public key of the peer. It must be
	// exactly 32 bytes.
	PublicKey []byte

	// AllowedIPs is the list of IP networks that will be routed to and accepted
	// from the peer.
	AllowedIPs []*net.IPNet

	// Endpoint is the network address that packets destined for the peer will
	// be sent to. If it is nil, packets destined for this peer will not be
	// routable until an incoming handshake is received.
	Endpoint *net.UDPAddr

	// PersistentKeepaliveInterval, if non-zero, is the number of seconds
	// between keep-alive packets sent to the peer.
	PersistentKeepaliveInterval int

	// LastHandshake is the timestamp of the last successful handshake with the
	// peer. This field is read-only.
	LastHandshake time.Time

	// RxBytes is the number of bytes received from the peer. This field is
	// read-only.
	RxBytes int64

	// TxBytes is the number of bytes transmitted to the peer. This field is
	// read-only.
	TxBytes int64
}

type UDPConn interface {
	ReadFromUDP(b []byte) (int, *net.UDPAddr, error)
	WriteToUDP(b []byte, addr *net.UDPAddr) (int, error)
	Close() error
}