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Diffstat (limited to 'vnet/vnet/lisp-gpe/lisp_gpe_fwd_entry.h')
-rw-r--r-- | vnet/vnet/lisp-gpe/lisp_gpe_fwd_entry.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/vnet/vnet/lisp-gpe/lisp_gpe_fwd_entry.h b/vnet/vnet/lisp-gpe/lisp_gpe_fwd_entry.h new file mode 100644 index 00000000000..f79236711ea --- /dev/null +++ b/vnet/vnet/lisp-gpe/lisp_gpe_fwd_entry.h @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/** + * @file + * @brief LISP-GPE definitions. + */ + +#ifndef __LISP_GPE_FWD_ENTRY_H__ +#define __LISP_GPE_FWD_ENTRY_H__ + +#include <vnet/lisp-gpe/lisp_gpe.h> + +/** + * @brief A path on which to forward lisp traffic + */ +typedef struct lisp_fwd_path_t_ +{ + /** + * The adjacency constructed for the locator pair + */ + index_t lisp_adj; + + /** + * Priority. Only the paths with the best priority will be installed in FIB + */ + u8 priority; + + /** + * [UE]CMP weigt for the path + */ + u8 weight; + +} lisp_fwd_path_t; + +/** + * @brief A Forwarding entry can be 'normal' or 'negative' + * Negative implies we deliberately want to add a FIB entry for an EID + * that results in 'special' behaviour determined by an 'action'. + * @normal means send it down some tunnels. + */ +typedef enum lisp_gpe_fwd_entry_type_t_ +{ + LISP_GPE_FWD_ENTRY_TYPE_NORMAL, + LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE, +} lisp_gpe_fwd_entry_type_t; + + +/** + * LISP-GPE fwd entry key + */ +typedef struct lisp_gpe_fwd_entry_key_t_ +{ + dp_address_t rmt; + dp_address_t lcl; + u32 vni; +} lisp_gpe_fwd_entry_key_t; + +/** + * @brief A LISP Forwarding Entry + * + * A forwarding entry is from a locai EID to a remote EID over a set of rloc pairs + */ +typedef struct lisp_gpe_fwd_entry_t_ +{ + /** + * This object joins the FIB control plane graph to receive updates to + * for changes to the graph. + */ + fib_node_t node; + + /** + * The Entry's key: {lEID,r-EID,vni} + */ + lisp_gpe_fwd_entry_key_t *key; + + /** + * The forwarding entry type + */ + lisp_gpe_fwd_entry_type_t type; + + /** + * The tenant the entry belongs to + */ + u32 tenant; + + /** + * The VRF (in the case of L3) or Bridge-Domain (for L2) index + */ + union + { + /** + * Fields relevant to an L2 entry + */ + struct + { + /** + * The VRF ID + */ + u32 eid_table_id; + + /** + * The FIB index for the overlay, i.e. the FIB in which the EIDs + * are present + */ + u32 eid_fib_index; + /** + * The SRC-FIB index for created for anding source-route entries + */ + u32 src_fib_index; + }; + /** + * Fields relevant to an L2 entry + */ + struct + { + /** + * The Bridge-Domain (for L2) index + */ + u32 eid_bd_id; + + /** + * The Bridge-domain index for the overlay EIDs + */ + u32 eid_bd_index; + + /** + * The path-list created for the forwarding + */ + fib_node_index_t path_list_index; + + /** + * Child index of this entry on the path-list + */ + u32 child_index; + + /** + * The DPO used to forward + */ + dpo_id_t dpo; + } l2; + }; + + union + { + /** + * @brief When the type is 'normal' + * The RLOC pair that form the route's paths. i.e. where to send + * packets for this route. + */ + lisp_fwd_path_t *paths; + + /** + * @brief When the type is negative. The action to take. + */ + negative_fwd_actions_e action; + }; +} lisp_gpe_fwd_entry_t; + +extern int +vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, + u32 * hw_if_indexp); + +extern void vnet_lisp_gpe_fwd_entry_flush (void); + +extern u32 lisp_l2_fib_lookup (lisp_gpe_main_t * lgm, + u16 bd_index, u8 src_mac[8], u8 dst_mac[8]); + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |