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authorNeale Ranns <nranns@cisco.com>2020-09-21 08:17:51 +0000
committerDamjan Marion <dmarion@me.com>2020-09-22 16:01:29 +0000
commit2b202bc4b2d870d76bfe6fb1906ae62e253cec72 (patch)
treeb05011f96b8d9d080647323e4609af0fac90b612 /src/plugins/lisp/lisp-gpe/lisp_gpe_fwd_entry.h
parentb468773aa4164bf52e0751fdf780f67248037cc0 (diff)
lisp: Move to plugin
Type: refactor Change-Id: I54df533a8f863c4e49742903cf2457f18b4fc506 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/lisp/lisp-gpe/lisp_gpe_fwd_entry.h')
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1 files changed, 240 insertions, 0 deletions
diff --git a/src/plugins/lisp/lisp-gpe/lisp_gpe_fwd_entry.h b/src/plugins/lisp/lisp-gpe/lisp_gpe_fwd_entry.h
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+++ b/src/plugins/lisp/lisp-gpe/lisp_gpe_fwd_entry.h
@@ -0,0 +1,240 @@
+/*
+ * 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 <lisp/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_
+{
+ /**
+ * Follows src/dst or dst only forwarding policy
+ */
+ u8 is_src_dst;
+
+ /**
+ * 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,rEID,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;
+
+ /**
+ * Fields relevant to an NSH entry
+ */
+ struct
+ {
+ /**
+ * 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 contributed by NSH
+ */
+ dpo_id_t dpo;
+
+ /**
+ * The DPO used for forwarding. Obtained after stacking tx node
+ * onto lb choice
+ */
+ dpo_id_t choice;
+ } nsh;
+ };
+
+ 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;
+ };
+
+ /**
+ * used for getting load balance statistics
+ */
+ index_t dpoi_index;
+
+} 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]);
+
+extern const dpo_id_t *lisp_nsh_fib_lookup (lisp_gpe_main_t * lgm,
+ u32 spi_si);
+extern void
+vnet_lisp_gpe_del_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
+ u32 fwd_entry_index);
+extern void
+vnet_lisp_gpe_add_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
+ u32 fwd_entry_index);
+extern u32 *vnet_lisp_gpe_get_fwd_entry_vnis (void);
+
+int
+vnet_lisp_gpe_get_fwd_stats (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
+ vlib_counter_t * c);
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */