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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 *src,
39  const ip6_address_t *grp);
41  const ip6_address_t *grp,
42  const ip6_address_t *src,
43  u32 len);
45  const ip6_address_t *src,
46  const ip6_address_t *grp,
47  u32 len);
48 
50  const ip6_address_t *grp,
51  const ip6_address_t *src,
52  u32 len);
53 
55  const ip6_address_t *grp,
56  const ip6_address_t *src,
57  u32 len,
58  fib_node_index_t fib_entry_index);
59 extern void ip6_mfib_table_destroy(ip6_mfib_t *fib);
60 
61 /**
62  * @brief
63  * Add/remove the interface from the accepting list of the special MFIB entries
64  */
66  int is_enable);
67 
68 /**
69  * @brief Get the FIB at the given index
70  */
71 static inline ip6_mfib_t *
73 {
74  return (&(pool_elt_at_index(ip6_main.mfibs, index)->v6));
75 }
76 
77 /**
78  * @brief Get or create an IPv4 fib.
79  *
80  * Get or create an IPv4 fib with the provided table ID.
81  *
82  * @param table_id
83  * When set to \c ~0, an arbitrary and unused fib ID is picked
84  * and can be retrieved with \c ret->table_id.
85  * Otherwise, the fib ID to be used to retrieve or create the desired fib.
86  * @returns A pointer to the retrieved or created fib.
87  *
88  */
90  mfib_source_t src);
92 
93 
94 static inline
96 {
97  ip6_main_t * im = &ip6_main;
98  uword * p;
99 
100  p = hash_get (im->mfib_index_by_table_id, table_id);
101  if (!p)
102  return ~0;
103 
104  return p[0];
105 }
106 
108 
109 /**
110  * @brief Data-plane lookup function
111  */
113  const ip6_address_t *src,
114  const ip6_address_t *grp);
115 
116 /**
117  * @brief Walk the IP6 mfib table.
118  *
119  * @param mfib the table to walk
120  * @param fn The function to invoke on each entry visited
121  * @param ctx A context passed in the visit function
122  */
123 extern void ip6_mfib_table_walk (ip6_mfib_t *mfib,
125  void *ctx);
126 
127 /**
128  * @brief format (display) ipv6 MFIB mempry usage
129  */
130 extern u8 *format_ip6_mfib_table_memory(u8 * s, va_list * args);
131 
132 #endif
133 
fib_node_index_t ip6_mfib_table_get_less_specific(const ip6_mfib_t *mfib, const ip6_address_t *src, const ip6_address_t *grp, u32 len)
Definition: ip6_mfib.c:378
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:465
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:490
fib_node_index_t ip6_mfib_table_fwd_lookup(const ip6_mfib_t *fib, const ip6_address_t *src, const ip6_address_t *grp)
Definition: ip6_mfib.c:350
u32 ip6_mfib_table_create_and_lock(mfib_source_t src)
unsigned char u8
Definition: types.h:56
enum mfib_source_t_ mfib_source_t
Possible [control plane] sources of MFIB entries.
u8 * format_ip6_mfib_table_memory(u8 *s, va_list *args)
format (display) ipv6 MFIB mempry usage
Definition: ip6_mfib.c:522
u32 sw_if_index
Definition: vxlan_gbp.api:37
unsigned int u32
Definition: types.h:88
void ip6_mfib_table_destroy(ip6_mfib_t *fib)
Definition: ip6_mfib.c:191
#define hash_get(h, key)
Definition: hash.h:249
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:511
uword * mfib_index_by_table_id
Hash table mapping table id to multicast fib index.
Definition: ip6.h:207
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.
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:621
long ctx[MAX_CONNS]
Definition: main.c:144
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:232
Definition: ip6.h:80
u8 len
Definition: ip_types.api:49
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
ip6_main_t ip6_main
Definition: ip6_forward.c:2624
static u32 ip6_mfib_index_from_table_id(u32 table_id)
Definition: ip6_mfib.h:95
struct mfib_table_t_ * mfibs
Vector of MFIBs.
Definition: ip6.h:187
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:415
u32 ip6_mfib_table_get_index_for_sw_if_index(u32 sw_if_index)
Definition: ip6_mfib.c:287
u64 uword
Definition: types.h:112
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:447
static ip6_mfib_t * ip6_mfib_get(u32 index)
Get the FIB at the given index.
Definition: ip6_mfib.h:72
u32 ip6_mfib_table_find_or_create_and_lock(u32 table_id, mfib_source_t src)
Get or create an IPv4 fib.
Definition: ip6_mfib.c:273
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:326