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80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
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// 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 ipn
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import (
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"tailscale.com/control/controlclient"
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"tailscale.com/tailcfg"
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"tailscale.com/wgengine"
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"time"
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)
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type State int
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const (
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NoState = State(iota)
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NeedsLogin
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NeedsMachineAuth
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Stopped
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Starting
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Running
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)
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func (s State) String() string {
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return [...]string{"NoState", "NeedsLogin", "NeedsMachineAuth",
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"Stopped", "Starting", "Running"}[s]
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}
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type EngineStatus struct {
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RBytes, WBytes wgengine.ByteCount
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NumLive int
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LivePeers map[tailcfg.NodeKey]wgengine.PeerStatus
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}
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type NetworkMap = controlclient.NetworkMap
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// In any given notification, any or all of these may be nil, meaning
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// that they have not changed.
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type Notify struct {
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Version string // version number of IPN backend
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ErrMessage *string // critical error message, if any
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LoginFinished *struct{} // event: login process succeeded
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State *State // current IPN state has changed
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Prefs *Prefs // preferences were changed
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NetMap *NetworkMap // new netmap received
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Engine *EngineStatus // wireguard engine stats
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BrowseToURL *string // UI should open a browser right now
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BackendLogID *string // public logtail id used by backend
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}
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type Options struct {
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FrontendLogID string // public logtail id used by frontend
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ServerURL string
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Prefs Prefs
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LoginFlags controlclient.LoginFlags
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Notify func(n Notify) `json:"-"`
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}
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type Backend interface {
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// Start or restart the backend, because a new Handle has connected.
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Start(opts Options) error
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// Start a new interactive login. This should trigger a new
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// BrowseToURL notification eventually.
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StartLoginInteractive()
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// Terminate the current login session and stop the wireguard engine.
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Logout()
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// Install a new set of user preferences, including WantRunning.
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// This may cause the wireguard engine to reconfigure or stop.
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SetPrefs(new Prefs)
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// Poll for an update from the wireguard engine. Only needed if
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// you want to display byte counts. Connection events are emitted
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// automatically without polling.
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RequestEngineStatus()
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// Pretend the current key is going to expire after duration x.
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// This is useful for testing GUIs to make sure they react properly
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// with keys that are going to expire.
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FakeExpireAfter(x time.Duration)
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}
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