MPLS Mcast
1 - interface-DPO
Used in the Data-plane to change a packet's input interface
2 - MPLS multicast FIB entry
Same as a unicast entry but it links to a replicate not a load-balance DPO
3 - Multicast MPLS tunnel
Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to .
4 - Resolve a path via a local label (of an mLDP LSP)
For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP.
5 - MPLS disposition path sets RPF-ID
For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet.
6 - RPF check with per-entry RPF-ID
An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface.
Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/adj/adj_internal.h b/src/vnet/adj/adj_internal.h
index 3066862..2c123c5 100644
--- a/src/vnet/adj/adj_internal.h
+++ b/src/vnet/adj/adj_internal.h
@@ -17,6 +17,7 @@
#define __ADJ_INTERNAL_H__
#include <vnet/adj/adj.h>
+#include <vnet/adj/adj_mcast.h>
#include <vnet/ip/ip.h>
#include <vnet/mpls/mpls.h>
#include <vnet/adj/adj_l2.h>
@@ -87,11 +88,14 @@
return (adj - adj_pool);
}
-extern void adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
- ip_lookup_next_t adj_next_index,
- u32 complete_next_index,
- u32 next_index,
- u8 *rewrite);
+extern void adj_nbr_update_rewrite_internal(ip_adjacency_t *adj,
+ ip_lookup_next_t adj_next_index,
+ u32 complete_next_index,
+ u32 next_index,
+ u8 *rewrite);
+extern void adj_midchain_setup(adj_index_t adj_index,
+ adj_midchain_fixup_t fixup,
+ adj_flags_t flags);
extern ip_adjacency_t * adj_alloc(fib_protocol_t proto);