}
		return f
	})
	chains = filter("ServerNames", chains, func(fc *listener.FilterChainMatch) bool {
		return fc.GetServerNames() == nil
	}, func(fc *listener.FilterChainMatch) bool {
		sni := host.Name(input.Sni)
		for _, s := range fc.GetServerNames() {
			if sni.SubsetOf(host.Name(s)) {
				return true
			}
		}
		return false
	})