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tailscale/wgengine/router/dns/manager_linux.go

28 lines
700 B
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package dns
func newManager(mconfig ManagerConfig) managerImpl {
switch {
// systemd-resolved should only activate per-domain.
case isResolvedActive() && mconfig.PerDomain:
if mconfig.Cleanup {
return newNoopManager(mconfig)
} else {
return newResolvedManager(mconfig)
}
case isNMActive():
if mconfig.Cleanup {
return newNoopManager(mconfig)
} else {
return newNMManager(mconfig)
}
case isResolvconfActive():
return newResolvconfManager(mconfig)
default:
return newDirectManager(mconfig)
}
}