Filter: Add MPLS label route attribute

Add support to set or read outgoing MPLS labels using filters. Currently
this supports the addition of one label per route for the first next hop.

Minor changes by committer.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/ip.h b/lib/ip.h
index f3b1cc31..5b179acb 100644
--- a/lib/ip.h
+++ b/lib/ip.h
@@ -47,6 +47,8 @@
 #define IP6_HEADER_LENGTH	40
 #define UDP_HEADER_LENGTH	8
 
+#define MPLS_NULL		3
+
 
 /* IANA Address Family Numbers */
 /* https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml */