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Vector Packet Processing
ip6_mfib.h
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1 /*
2  * Copyright (c) 2016 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /**
16  * @brief The IPv4 Multicast-FIB
17  *
18  * FIXME
19  *
20  * This IPv4 FIB is used by the protocol independent FIB. So directly using
21  * this APIs in client code is not encouraged. However, this IPv4 FIB can be
22  * used if all the client wants is an IPv4 prefix data-base
23  */
24 
25 #ifndef __IP6_MFIB_H__
26 #define __IP6_MFIB_H__
27 
28 #include <vlib/vlib.h>
29 #include <vnet/ip/ip.h>
30 
31 #include <vnet/mfib/mfib_table.h>
32 
34  const ip6_address_t *src,
35  const ip6_address_t *grp,
36  u32 len);
38  const ip6_address_t *grp,
39  const ip6_address_t *src,
40  u32 len);
41 
43  const ip6_address_t *grp,
44  const ip6_address_t *src,
45  u32 len);
46 
48  const ip6_address_t *grp,
49  const ip6_address_t *src,
50  u32 len,
51  fib_node_index_t fib_entry_index);
52 extern void ip6_mfib_table_destroy(ip6_mfib_t *fib);
53 
54 /**
55  * @brief
56  * Add/remove the interface from the accepting list of the special MFIB entries
57  */
58 extern void ip6_mfib_interface_enable_disable(u32 sw_if_index,
59  int is_enable);
60 
61 /**
62  * @brief Get the FIB at the given index
63  */
64 static inline ip6_mfib_t *
66 {
67  return (&(pool_elt_at_index(ip6_main.mfibs, index)->v6));
68 }
69 
70 /**
71  * @brief Get or create an IPv4 fib.
72  *
73  * Get or create an IPv4 fib with the provided table ID.
74  *
75  * @param table_id
76  * When set to \c ~0, an arbitrary and unused fib ID is picked
77  * and can be retrieved with \c ret->table_id.
78  * Otherwise, the fib ID to be used to retrieve or create the desired fib.
79  * @returns A pointer to the retrieved or created fib.
80  *
81  */
84 
85 
86 static inline
88 {
89  ip6_main_t * im = &ip6_main;
90  uword * p;
91 
92  p = hash_get (im->mfib_index_by_table_id, table_id);
93  if (!p)
94  return ~0;
95 
96  return p[0];
97 }
98 
100 
101 /**
102  * @brief Data-plane lookup function
103  */
105  const ip6_address_t *src,
106  const ip6_address_t *grp);
107 
108 /**
109  * @brief Walk the IP6 mfib table.
110  *
111  * @param mfib the table to walk
112  * @param fn The function to invoke on each entry visited
113  * @param ctx A context passed in the visit function
114  */
115 extern void ip6_mfib_table_walk (ip6_mfib_t *mfib,
117  void *ctx);
118 
119 #endif
120 
void ip6_mfib_table_entry_insert(ip6_mfib_t *fib, const ip6_address_t *grp, const ip6_address_t *src, u32 len, fib_node_index_t fib_entry_index)
Definition: ip6_mfib.c:426
void ip6_mfib_table_entry_remove(ip6_mfib_t *fib, const ip6_address_t *grp, const ip6_address_t *src, u32 len)
Definition: ip6_mfib.c:449
u32 ip6_mfib_table_find_or_create_and_lock(u32 table_id)
Get or create an IPv4 fib.
Definition: ip6_mfib.c:299
void ip6_mfib_table_destroy(ip6_mfib_t *fib)
Definition: ip6_mfib.c:216
#define hash_get(h, key)
Definition: hash.h:248
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:397
uword * mfib_index_by_table_id
Hash table mapping table id to multicast fib index.
Definition: ip6.h:177
fib_node_index_t ip6_mfib_table_lookup2(const ip6_mfib_t *mfib, const ip6_address_t *src, const ip6_address_t *grp)
Data-plane lookup function.
Definition: ip6_mfib.c:408
void ip6_mfib_table_walk(ip6_mfib_t *mfib, mfib_table_walk_fn_t fn, void *ctx)
Walk the IP6 mfib table.
Definition: ip6_mfib.c:547
void ip6_mfib_interface_enable_disable(u32 sw_if_index, int is_enable)
Add/remove the interface from the accepting list of the special MFIB entries.
Definition: ip6_mfib.c:258
Definition: ip6.h:79
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:28
unsigned int u32
Definition: types.h:88
u32 ip6_mfib_table_create_and_lock(void)
ip6_main_t ip6_main
Definition: ip6_forward.c:2846
static u32 ip6_mfib_index_from_table_id(u32 table_id)
Definition: ip6_mfib.h:87
struct mfib_table_t_ * mfibs
Vector of MFIBs.
Definition: ip6.h:157
fib_node_index_t ip6_mfib_table_lookup(const ip6_mfib_t *fib, const ip6_address_t *src, const ip6_address_t *grp, u32 len)
The IPv4 Multicast-FIB.
Definition: ip6_mfib.c:383
u64 uword
Definition: types.h:112
u32 ip6_mfib_table_get_index_for_sw_if_index(u32 sw_if_index)
Definition: ip6_mfib.c:312
int(* mfib_table_walk_fn_t)(fib_node_index_t fei, void *ctx)
Call back function when walking entries in a FIB table.
Definition: mfib_table.h:366
static ip6_mfib_t * ip6_mfib_get(u32 index)
Get the FIB at the given index.
Definition: ip6_mfib.h:65
fib_node_index_t ip6_mfib_table_lookup_exact_match(const ip6_mfib_t *fib, const ip6_address_t *grp, const ip6_address_t *src, u32 len)
Definition: ip6_mfib.c:356