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authorNeale Ranns <neale@graphiant.com>2021-08-10 07:39:18 +0000
committerOle Tr�an <otroan@employees.org>2021-08-11 08:48:42 +0000
commitd6953332db225d5355f50348ef3b09f0525d5282 (patch)
tree3f4870c12c97f458119d6460e4082de767181c2b /src/vnet/fib/ip4_fib_hash.h
parent7244a706430746facf20a5f047666b74d440cef8 (diff)
fib: A 16-8-8 and a 8-8-8-8 versions of an ip4_fib_t
Type: feature The difference being the MTRIE type they contain. THE FIB continues to use the 16-8-8 version. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I5a54d4e6e6cc639f18a3fb65ef2925507a7ef1de
Diffstat (limited to 'src/vnet/fib/ip4_fib_hash.h')
-rw-r--r--src/vnet/fib/ip4_fib_hash.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/vnet/fib/ip4_fib_hash.h b/src/vnet/fib/ip4_fib_hash.h
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+/*
+ * 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.
+ */
+/**
+ * @brief The IPv4 FIB Hash table
+ */
+
+#ifndef __IP4_FIB_HASH_H__
+#define __IP4_FIB_HASH_H__
+
+#include <vlib/vlib.h>
+#include <vnet/ip/ip.h>
+
+typedef struct ip4_fib_hash_t_
+{
+ /* Hash table for each prefix length mapping. */
+ uword *fib_entry_by_dst_address[33];
+
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+} ip4_fib_hash_t;
+
+extern fib_node_index_t ip4_fib_hash_table_lookup(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+extern index_t ip4_fib_hash_table_lookup_lb(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr);
+extern fib_node_index_t ip4_fib_hash_table_lookup_exact_match(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_hash_table_entry_remove(ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_hash_table_entry_insert(ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index);
+extern void ip4_fib_hash_table_init(ip4_fib_hash_t *fib);
+extern void ip4_fib_hash_table_destroy(ip4_fib_hash_t *fib);
+
+/**
+ * @brief Walk all entries in a FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_hash_table_walk(ip4_fib_hash_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+/**
+ * @brief Walk all entries in a sub-tree of the FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_hash_table_sub_tree_walk(ip4_fib_hash_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+#endif
+