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7c1ed38ab3
I missed connecting some controlknobs.Knobs pieces in 4e91cf20a8
resulting in that breaking control knobs entirely.
Whoops.
The fix in ipn/ipnlocal (where it makes a new controlclient) but to
atone, I also added integration tests. Those integration tests use
a new "tailscale debug control-knobs" which by itself might be useful
for future debugging.
Updates #9351
Change-Id: Id9c89c8637746d879d5da67b9ac4e0d2367a3f0d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package controlknobs contains client options configurable from control which can be turned on
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// or off. The ability to turn options on and off is for incrementally adding features in.
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package controlknobs
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import (
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"sync/atomic"
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"tailscale.com/syncs"
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"tailscale.com/types/opt"
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)
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// Knobs is the set of knobs that the control plane's coordination server can
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// adjust at runtime.
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type Knobs struct {
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// DisableUPnP indicates whether to attempt UPnP mapping.
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DisableUPnP atomic.Bool
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// DisableDRPO is whether control says to disable the
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// DERP route optimization (Issue 150).
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DisableDRPO atomic.Bool
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// KeepFullWGConfig is whether we should disable the lazy wireguard
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// programming and instead give WireGuard the full netmap always, even for
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// idle peers.
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KeepFullWGConfig atomic.Bool
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// RandomizeClientPort is whether control says we should randomize
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// the client port.
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RandomizeClientPort atomic.Bool
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// OneCGNAT is whether the the node should make one big CGNAT route
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// in the OS rather than one /32 per peer.
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OneCGNAT syncs.AtomicValue[opt.Bool]
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// ForceBackgroundSTUN forces netcheck STUN queries to keep
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// running in magicsock, even when idle.
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ForceBackgroundSTUN atomic.Bool
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}
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// AsDebugJSON returns k as something that can be marshalled with json.Marshal
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// for debug.
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func (k *Knobs) AsDebugJSON() map[string]any {
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if k == nil {
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return nil
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}
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return map[string]any{
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"DisableUPnP": k.DisableUPnP.Load(),
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"DisableDRPO": k.DisableDRPO.Load(),
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"KeepFullWGConfig": k.KeepFullWGConfig.Load(),
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"RandomizeClientPort": k.RandomizeClientPort.Load(),
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"OneCGNAT": k.OneCGNAT.Load(),
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"ForceBackgroundSTUN": k.ForceBackgroundSTUN.Load(),
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}
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}
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