mirror of
https://github.com/tailscale/tailscale.git
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47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"strings"
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"tailscale.com/derp"
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"tailscale.com/derp/derphttp"
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"tailscale.com/types/key"
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"tailscale.com/types/logger"
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)
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func startMesh(s *derp.Server) error {
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if *meshWith == "" {
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return nil
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}
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if !s.HasMeshKey() {
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return errors.New("--mesh-with requires --mesh-psk-file")
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}
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for _, host := range strings.Split(*meshWith, ",") {
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if err := startMeshWithHost(s, host); err != nil {
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return err
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}
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}
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return nil
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}
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func startMeshWithHost(s *derp.Server, host string) error {
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logf := logger.WithPrefix(log.Printf, fmt.Sprintf("mesh(%q): ", host))
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c, err := derphttp.NewClient(s.PrivateKey(), "https://"+host+"/derp", logf)
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if err != nil {
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return err
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}
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c.MeshKey = s.MeshKey()
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add := func(k key.Public) { s.AddPacketForwarder(k, c) }
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remove := func(k key.Public) { s.RemovePacketForwarder(k, c) }
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go c.RunWatchConnectionLoop(context.Background(), s.PublicKey(), logf, add, remove)
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return nil
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}
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