/usr/share/gocode/src/github.com/vishvananda/netlink/netlink_test.go is in golang-github-vishvananda-netlink-dev 0.0~git20170407.0.1e86b2b-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"log"
"os"
"runtime"
"testing"
"github.com/vishvananda/netns"
)
type tearDownNetlinkTest func()
func skipUnlessRoot(t *testing.T) {
if os.Getuid() != 0 {
msg := "Skipped test because it requires root privileges."
log.Printf(msg)
t.Skip(msg)
}
}
func setUpNetlinkTest(t *testing.T) tearDownNetlinkTest {
skipUnlessRoot(t)
// new temporary namespace so we don't pollute the host
// lock thread since the namespace is thread local
runtime.LockOSThread()
var err error
ns, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns", ns)
}
return func() {
ns.Close()
runtime.UnlockOSThread()
}
}
func setUpMPLSNetlinkTest(t *testing.T) tearDownNetlinkTest {
if _, err := os.Stat("/proc/sys/net/mpls/platform_labels"); err != nil {
msg := "Skipped test because it requires MPLS support."
log.Printf(msg)
t.Skip(msg)
}
f := setUpNetlinkTest(t)
setUpF := func(path, value string) {
file, err := os.Create(path)
defer file.Close()
if err != nil {
t.Fatalf("Failed to open %s: %s", path, err)
}
file.WriteString(value)
}
setUpF("/proc/sys/net/mpls/platform_labels", "1024")
setUpF("/proc/sys/net/mpls/conf/lo/input", "1")
return f
}
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