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authorNeale Ranns <nranns@cisco.com>2017-03-01 15:12:11 -0800
committerNeale Ranns <nranns@cisco.com>2017-04-07 09:12:12 +0000
commit0f26c5a0138ac86d7ebd197c31a09d8d624c35fe (patch)
tree5cee4659885432c439e44d7346fd5e482df5f0e6 /src/vnet/adj/adj_mcast.h
parentc14f31c2c62fb66d98aef4402a6f1bda09683fd3 (diff)
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>
Diffstat (limited to 'src/vnet/adj/adj_mcast.h')
-rw-r--r--src/vnet/adj/adj_mcast.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/vnet/adj/adj_mcast.h b/src/vnet/adj/adj_mcast.h
index 40d44313357..bfb0d6f6d11 100644
--- a/src/vnet/adj/adj_mcast.h
+++ b/src/vnet/adj/adj_mcast.h
@@ -26,6 +26,7 @@
#define __ADJ_MCAST_H__
#include <vnet/adj/adj_types.h>
+#include <vnet/adj/adj_midchain.h>
/**
* @brief
@@ -69,9 +70,35 @@ extern void adj_mcast_update_rewrite(adj_index_t adj_index,
u32 mask);
/**
+ * @brief
+ * Update the rewrite string for an existing adjacecny and
+ * Convert the adjacency into a midchain
+ *
+ * @param
+ * The index of the adj to update
+ *
+ * @param
+ * The new rewrite
+ */
+extern void adj_mcast_midchain_update_rewrite(adj_index_t adj_index,
+ adj_midchain_fixup_t fixup,
+ adj_flags_t flags,
+ u8 *rewrite,
+ u8 offset,
+ u32 mask);
+/**
+ * @brief Walk the multicast Adjacencies on a given interface
+ */
+extern void adj_mcast_walk (u32 sw_if_index,
+ fib_protocol_t adj_nh_proto,
+ adj_walk_cb_t cb,
+ void *ctx);
+
+/**
* @brief Format/display a mcast adjacency.
*/
extern u8* format_adj_mcast(u8* s, va_list *ap);
+extern u8* format_adj_mcast_midchain(u8* s, va_list *ap);
/**
* @brief Get the sze of the mcast adj DB. Test purposes only.