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wgengine/router: include command output if `ip rule list` fails. 

Signed-off-by: David Anderson <danderson@tailscale.com>
reviewable/pr373/r1
David Anderson 2020-05-10 23:49:01 +00:00 committed by Dave Anderson
parent e83d02ffd1
commit 381b94d4d1
1 changed files with 1 additions and 1 deletions
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2
wgengine/router/router_linux.go
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@ -391,7 +391,7 @@ func (r *linuxRouter) addBypassRule() error {
func (r *linuxRouter) delBypassRule() error { func (r *linuxRouter) delBypassRule() error {
out, err := exec.Command("ip", "rule", "list", "priority", "10000").CombinedOutput() out, err := exec.Command("ip", "rule", "list", "priority", "10000").CombinedOutput()
if err != nil { if err != nil {
return err return fmt.Errorf("listing ip rules: %v\n%s", err, out)
} }
if len(out) == 0 { if len(out) == 0 {
// No rule exists. // No rule exists.