Refactor - now wireguard based. (#7)

peer/interfaces.go

@@ -0,0 +1,28 @@
+package peer
+
+import (
+	"net/netip"
+	"vppn/peer/control"
+
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+// WGDevice is the subset of wginterface.Device used by App.
+type WGDevice interface {
+	Name() string
+	Peers() ([]wgtypes.Peer, error)
+	AddPeer(pubKey wgtypes.Key) error
+	AddDirect(pubKey wgtypes.Key, endpoint netip.AddrPort, vpnIP netip.Addr) error
+	SetRelay(pubKey wgtypes.Key, endpoint netip.AddrPort, network netip.Prefix) error
+	AddProbe(pubKey wgtypes.Key, endpoint netip.AddrPort) error
+	Promote(pubKey wgtypes.Key, vpnIP netip.Addr) error
+	RemovePeer(pubKey wgtypes.Key) error
+}
+
+// ControlConn sends pings to peers over the VPN control port.
+// Reading is handled separately via run, which feeds the App's pingCh.
+// buf is a caller-provided scratch buffer (at least control.Size bytes) used to
+// marshal the ping; the caller reuses one across sends.
+type ControlConn interface {
+	SendPing(dst netip.AddrPort, ping control.Ping, buf []byte) error
+}