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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/fib/fib_path.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/fib/fib_path.h')
-rw-r--r--src/vnet/fib/fib_path.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/vnet/fib/fib_path.h b/src/vnet/fib/fib_path.h
index 14efc1ab842..334be6f56e6 100644
--- a/src/vnet/fib/fib_path.h
+++ b/src/vnet/fib/fib_path.h
@@ -69,6 +69,14 @@ typedef enum fib_path_cfg_attribute_t_ {
/**
* The path is a for-us path
*/
+ FIB_PATH_CFG_ATTRIBUTE_INTF_RX,
+ /**
+ * The path is a deag with rpf-id
+ */
+ FIB_PATH_CFG_ATTRIBUTE_RPF_ID,
+ /**
+ * The path is an interface recieve
+ */
FIB_PATH_CFG_ATTRIBUTE_LOCAL,
/**
* Marker. Add new types before this one, then update it.
@@ -88,6 +96,8 @@ typedef enum fib_path_cfg_attribute_t_ {
[FIB_PATH_CFG_ATTRIBUTE_RESOLVE_ATTACHED] = "resolve-attached", \
[FIB_PATH_CFG_ATTRIBUTE_LOCAL] = "local", \
[FIB_PATH_CFG_ATTRIBUTE_ATTACHED] = "attached", \
+ [FIB_PATH_CFG_ATTRIBUTE_INTF_RX] = "interface-rx", \
+ [FIB_PATH_CFG_ATTRIBUTE_RPF_ID] = "rpf-id", \
}
#define FOR_EACH_FIB_PATH_CFG_ATTRIBUTE(_item) \
@@ -106,6 +116,8 @@ typedef enum fib_path_cfg_flags_t_ {
FIB_PATH_CFG_FLAG_RESOLVE_ATTACHED = (1 << FIB_PATH_CFG_ATTRIBUTE_RESOLVE_ATTACHED),
FIB_PATH_CFG_FLAG_LOCAL = (1 << FIB_PATH_CFG_ATTRIBUTE_LOCAL),
FIB_PATH_CFG_FLAG_ATTACHED = (1 << FIB_PATH_CFG_ATTRIBUTE_ATTACHED),
+ FIB_PATH_CFG_FLAG_INTF_RX = (1 << FIB_PATH_CFG_ATTRIBUTE_INTF_RX),
+ FIB_PATH_CFG_FLAG_RPF_ID = (1 << FIB_PATH_CFG_ATTRIBUTE_RPF_ID),
} __attribute__ ((packed)) fib_path_cfg_flags_t;
@@ -117,8 +129,6 @@ extern u8 *fib_path_adj_format(fib_node_index_t pi,
extern u8 * format_fib_path(u8 * s, va_list * args);
extern fib_node_index_t fib_path_create(fib_node_index_t pl_index,
- fib_protocol_t nh_proto,
- fib_path_cfg_flags_t flags,
const fib_route_path_t *path);
extern fib_node_index_t fib_path_create_special(fib_node_index_t pl_index,
fib_protocol_t nh_proto,
@@ -145,6 +155,9 @@ extern load_balance_path_t * fib_path_append_nh_for_multipath_hash(
fib_node_index_t path_index,
fib_forward_chain_type_t fct,
load_balance_path_t *hash_key);
+extern void fib_path_stack_mpls_disp(fib_node_index_t path_index,
+ dpo_proto_t payload_proto,
+ dpo_id_t *dpo);
extern void fib_path_contribute_forwarding(fib_node_index_t path_index,
fib_forward_chain_type_t type,
dpo_id_t *dpo);