mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-12 03:04:40 +00:00
29 lines
1009 B
Go
29 lines
1009 B
Go
|
// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package controlclient
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math"
|
||
|
|
"testing"
|
||
|
|
|
||
|
|
"tailscale.com/tailcfg"
|
||
|
|
)
|
||
|
|
|
||
|
|
// maxAllowedNoiseVersion is the highest we expect the Tailscale
|
||
|
|
// capability version to ever get. It's a value close to 2^16, but
|
||
|
|
// with enough leeway that we get a very early warning that it's time
|
||
|
|
// to rework the wire protocol to allow larger versions, while still
|
||
|
|
// giving us headroom to bump this test and fix the build.
|
||
|
|
//
|
||
|
|
// Code elsewhere in the client will panic() if the tailcfg capability
|
||
|
|
// version exceeds 16 bits, so take a failure of this test seriously.
|
||
|
|
const maxAllowedNoiseVersion = math.MaxUint16 - 5000
|
||
|
|
|
||
|
|
func TestNoiseVersion(t *testing.T) {
|
||
|
|
if tailcfg.CurrentCapabilityVersion > maxAllowedNoiseVersion {
|
||
|
|
t.Fatalf("tailcfg.CurrentCapabilityVersion is %d, want <=%d", tailcfg.CurrentCapabilityVersion, maxAllowedNoiseVersion)
|
||
|
|
}
|
||
|
|
}
|