Bug fix - peer Up calculation

peer/remote.go

@@ -7,7 +7,6 @@ import (
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
 	"vppn/peer/control"
-	"vppn/peer/wginterface"
 )
 
 type PeerState string
@@ -29,6 +28,7 @@ type Peer struct {
 	EndpointLAN netip.AddrPort // Discovered via multicast.
 	EndpointWG  netip.AddrPort // Current wireguard endpoint.
 	RTT         time.Duration  // Round-trip time.
+	LastPing    time.Time      // Last time we had a ping.
 	ProbeStart  time.Time      // When we started probing.
 	State       PeerState      // Current routing state; updated on each devXxx call.
 	Role        control.Role   // Role in relation to the local application.
@@ -57,7 +57,7 @@ func (p *Peer) LastHandshakeTime() time.Time {
 }
 
 func (p *Peer) Up() bool {
-	return time.Since(p.wgPeer.LastHandshakeTime) < wginterface.SessionTimeout
+	return time.Since(p.LastPing) > 3*PingInterval
 }
 
 func (p *Peer) CanRelay() bool {