50 lines
983 B
Go
50 lines
983 B
Go
package peer
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import (
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"log"
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"time"
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"vppn/peer/control"
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"vppn/peer/wginterface"
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)
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func (a *App) onTick() {
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wgPeers := a.devPeers()
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a.nextPingID++
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now := time.Now().UnixNano()
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for _, wgPeer := range wgPeers {
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p, ok := a.peersByKey[wgPeer.PublicKey]
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if !ok {
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log.Fatalf("Wireguard peer not in index: %v", wgPeer)
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}
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p.wgPeer = wgPeer
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// Send pings to peers where we're the client.
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if p.Role == control.Client {
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a.sendPing(p, a.nextPingID, now)
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}
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switch p.State() {
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case StateProbing:
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// Promote probing peers to direct once alive (direct path confirmed
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// working).
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if time.Since(p.LastHandshakeTime()) < wginterface.SessionTimeout {
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a.devAddDirect(p, p.WGEndpoint())
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}
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case StateDirect:
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// Demote stale non-public direct peers back to probing.
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if !p.IsPublic && !p.Up() {
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a.devAddProbe(p, p.WGEndpoint())
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}
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}
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}
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// Ensure we have a live relay.
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if a.relay == nil || !a.relay.Up() {
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a.switchActiveRelay()
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}
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}
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