VOL-381 add unum container to support ONOS cluster formation under swarm
Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/vendor/golang.org/x/net/internal/nettest/helper_bsd.go b/unum/vendor/golang.org/x/net/internal/nettest/helper_bsd.go
new file mode 100644
index 0000000..a6e433b
--- /dev/null
+++ b/unum/vendor/golang.org/x/net/internal/nettest/helper_bsd.go
@@ -0,0 +1,53 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package nettest
+
+import (
+ "runtime"
+ "strconv"
+ "strings"
+ "syscall"
+)
+
+var darwinVersion int
+
+func init() {
+ if runtime.GOOS == "darwin" {
+ // See http://support.apple.com/kb/HT1633.
+ s, err := syscall.Sysctl("kern.osrelease")
+ if err != nil {
+ return
+ }
+ ss := strings.Split(s, ".")
+ if len(ss) == 0 {
+ return
+ }
+ darwinVersion, _ = strconv.Atoi(ss[0])
+ }
+}
+
+func supportsIPv6MulticastDeliveryOnLoopback() bool {
+ switch runtime.GOOS {
+ case "freebsd":
+ // See http://www.freebsd.org/cgi/query-pr.cgi?pr=180065.
+ // Even after the fix, it looks like the latest
+ // kernels don't deliver link-local scoped multicast
+ // packets correctly.
+ return false
+ case "darwin":
+ return !causesIPv6Crash()
+ default:
+ return true
+ }
+}
+
+func causesIPv6Crash() bool {
+ // We see some kernel crash when running IPv6 with IP-level
+ // options on Darwin kernel version 12 or below.
+ // See golang.org/issues/17015.
+ return darwinVersion < 13
+}