net/dns: set WSL /etc/resolv.conf
We also have to make a one-off change to /etc/wsl.conf to stop every invocation of wsl.exe clobbering the /etc/resolv.conf. This appears to be a safe change to make permanently, as even though the resolv.conf is constantly clobbered, it is always the same stable internal IP that is set as a nameserver. (I believe the resolv.conf clobbering predates the MS stub resolver.) Tested on WSL2, should work for WSL1 too. Fixes #775 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
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committed by
David Crawshaw

parent
9b063b86c3
commit
1147c7fd4f
37
net/dns/ini_test.go
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37
net/dns/ini_test.go
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@ -0,0 +1,37 @@
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// Copyright (c) 2021 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 dns
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import (
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"reflect"
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"testing"
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)
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func TestParseIni(t *testing.T) {
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var tests = []struct {
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src string
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want map[string]map[string]string
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}{
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{
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src: `# appended wsl.conf file
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[automount]
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enabled = true
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root=/mnt/
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# added by tailscale
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[network] # trailing comment
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generateResolvConf = false # trailing comment`,
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want: map[string]map[string]string{
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"automount": map[string]string{"enabled": "true", "root": "/mnt/"},
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"network": map[string]string{"generateResolvConf": "false"},
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},
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},
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}
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for _, test := range tests {
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got := parseIni(test.src)
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if !reflect.DeepEqual(got, test.want) {
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t.Errorf("for:\n%s\ngot: %v\nwant: %v", test.src, got, test.want)
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}
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}
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}
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