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hotfix(protonvpn): small port forwarding fixes for edge cases

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This commit is contained in:
Quentin McGaw
2026-05-24 21:08:56 +00:00
parent 2e20e2df66
commit 21e868c89c
2 changed files with 21 additions and 8 deletions
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internal/portforward/service/start.go
+4 -6
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@@ -105,23 +105,21 @@ func (s *Service) onNewPorts(ctx context.Context, internalToExternalPorts map[ui
return fmt.Errorf("allowing port in firewall: %w", err)
}
var sourcePort, destinationPort uint16
var destinationPort uint16
switch {
case userRedirectionEnabled: // precedence over auto redirection
sourcePort = externalToInternalPorts[port]
destinationPort = s.settings.ListeningPorts[i]
case port != externalToInternalPorts[port]: // auto redirection needed, source and destination ports differ
sourcePort = externalToInternalPorts[port]
case port != internalPort: // auto redirection needed, source and destination ports differ
destinationPort = port
default:
// No redirection needed, source and destination ports are the same.
continue
}
err = s.portAllower.RedirectPort(ctx, s.settings.Interface, sourcePort, destinationPort)
err = s.portAllower.RedirectPort(ctx, s.settings.Interface, internalPort, destinationPort)
if err != nil {
return fmt.Errorf("redirecting port %d to %d in firewall: %w",
sourcePort, destinationPort, err)
internalPort, destinationPort, err)
}
}