Use specific netlink families for android

go.mod

@@ -11,4 +11,5 @@ require (
 	github.com/vishvananda/netlink v1.0.0
 	github.com/vishvananda/netns v0.0.0-20190625233234-7109fa855b0f // indirect
 	github.com/whyrusleeping/mafmt v1.2.8
+	golang.org/x/sys v0.0.0-20190526052359-791d8a0f4d09
 )

netlink_linux.go

@@ -0,0 +1,10 @@
+// +build linux
+
+package libp2pquic
+
+import "golang.org/x/sys/unix"
+
+// We just need netlink_route here.
+// note: We should avoid the use of netlink_xfrm or netlink_netfilter has it is
+// not allowed by Android in his base policy.
+var SupportedNlFamilies = []int{unix.NETLINK_ROUTE}

netlink_other.go

@@ -0,0 +1,8 @@
+// +build !linux
+
+package libp2pquic
+
+import "github.com/vishvananda/netlink/nl"
+
+// nl.SupportedNlFamilies is the default netlink families used by the netlink package
+var SupportedNlFamilies = nl.SupportedNlFamilies

reuse.go

@@ -62,7 +62,7 @@ type reuse struct {
 
 func newReuse() (*reuse, error) {
 	// On non-Linux systems, this will return ErrNotImplemented.
-	handle, err := netlink.NewHandle()
+	handle, err := netlink.NewHandle(SupportedNlFamilies...)
 	if err == netlink.ErrNotImplemented {
 		handle = nil
 	} else if err != nil {