ip: reassembly - add a way to disable for forus

Add API to disable full reassembly of "forus" packets. Mark packets
passing through ip[4|6]-local nodes with a new buffer flag and check for
that flag in reassembly.

Enable IP6 "forus" full reassembly by default to be consistent with
existing IP4 setting.

Type: improvement
Change-Id: I7067792fcd4304182654237968e4c4d9293c6143
Signed-off-by: Klement Sekera <ksekera@cisco.com>
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index de8e8e8..4d06382 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -61,6 +61,7 @@
 #include <vnet/ip/ip4_forward.h>
 #include <vnet/interface_output.h>
 #include <vnet/classify/vnet_classify.h>
+#include <vnet/ip/reass/ip4_full_reass.h>
 
 /** @brief IPv4 lookup node.
     @node ip4-lookup
@@ -1880,7 +1881,7 @@
     [IP_LOCAL_NEXT_PUNT] = "ip4-punt",
     [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip4-udp-lookup",
     [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input",
-    [IP_LOCAL_NEXT_REASSEMBLY] = "ip4-full-reassembly",
+    [IP_LOCAL_NEXT_REASSEMBLY] = "ip4-local-full-reassembly",
   },
 };