34 lines
1.0 KiB
Go
34 lines
1.0 KiB
Go
package tunnel
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import (
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"github.com/cloudflare/cloudflared/tunneldns"
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"gopkg.in/urfave/cli.v2"
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"github.com/pkg/errors"
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)
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func runDNSProxyServer(c *cli.Context, dnsReadySignal, shutdownC chan struct{}) error {
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port := c.Int("proxy-dns-port")
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if port <= 0 || port > 65535 {
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logger.Errorf("The 'proxy-dns-port' must be a valid port number in <1, 65535> range.")
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return errors.New("The 'proxy-dns-port' must be a valid port number in <1, 65535> range.")
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}
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listener, err := tunneldns.CreateListener(c.String("proxy-dns-address"), uint16(port), c.StringSlice("proxy-dns-upstream"))
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if err != nil {
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close(dnsReadySignal)
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listener.Stop()
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logger.WithError(err).Error("Cannot create the DNS over HTTPS proxy server")
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return errors.Wrap(err, "Cannot create the DNS over HTTPS proxy server")
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}
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err = listener.Start(dnsReadySignal)
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if err != nil {
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logger.WithError(err).Error("Cannot start the DNS over HTTPS proxy server")
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return errors.Wrap(err, "Cannot start the DNS over HTTPS proxy server")
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}
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<-shutdownC
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listener.Stop()
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return nil
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}
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