summaryrefslogtreecommitdiffstats
path: root/src/vnet/fib/ip4_fib_16.c
blob: 7699e8926f17f43d9521e02fc67be2d0f0af0f8b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/*
 * 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.
 */

#include <vnet/fib/fib_table.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/ip4_fib.h>

ip4_fib_16_t *ip4_fib_16s;

void
ip4_fib_16_table_init (ip4_fib_16_t *fib)
{
    ip4_mtrie_16_init(&fib->mtrie);
}

void
ip4_fib_16_table_free (ip4_fib_16_t *fib)
{
    ip4_mtrie_16_free(&fib->mtrie);
}

/*
 * ip4_fib_16_table_lookup_exact_match
 *
 * Exact match prefix lookup
 */
fib_node_index_t
ip4_fib_16_table_lookup_exact_match (const ip4_fib_16_t *fib,
                                     const ip4_address_t *addr,
                                     u32 len)
{
    return (ip4_fib_hash_table_lookup_exact_match(&fib->hash, addr, len));
}

/*
 * ip4_fib_16_table_lookup_adj
 *
 * Longest prefix match
 */
index_t
ip4_fib_16_table_lookup_lb (ip4_fib_16_t *fib,
                            const ip4_address_t *addr)
{
    return (ip4_fib_hash_table_lookup_lb(&fib->hash, addr));
}

/*
 * ip4_fib_16_table_lookup
 *
 * Longest prefix match
 */
fib_node_index_t
ip4_fib_16_table_lookup (const ip4_fib_16_t *fib,
                         const ip4_address_t *addr,
                         u32 len)
{
    return (ip4_fib_hash_table_lookup(&fib->hash, addr, len));
}

void
ip4_fib_16_table_entry_insert (ip4_fib_16_t *fib,
                               const ip4_address_t *addr,
                               u32 len,
                               fib_node_index_t fib_entry_index)
{
    return (ip4_fib_hash_table_entry_insert(&fib->hash, addr, len, fib_entry_index));
}

void
ip4_fib_16_table_entry_remove (ip4_fib_16_t *fib,
                               const ip4_address_t *addr,
                               u32 len)
{
    return (ip4_fib_hash_table_entry_remove(&fib->hash, addr, len));
}

void
ip4_fib_16_table_fwding_dpo_update (ip4_fib_16_t *fib,
				 const ip4_address_t *addr,
				 u32 len,
				 const dpo_id_t *dpo)
{
    ip4_mtrie_16_route_add(&fib->mtrie, addr, len, dpo->dpoi_index);
}

void
ip4_fib_16_table_fwding_dpo_remove (ip4_fib_16_t *fib,
                                    const ip4_address_t *addr,
                                    u32 len,
                                    const dpo_id_t *dpo,
                                    u32 cover_index)
{
    const fib_prefix_t *cover_prefix;
    const dpo_id_t *cover_dpo;

    /*
     * We need to pass the MTRIE the LB index and address length of the
     * covering prefix, so it can fill the plys with the correct replacement
     * for the entry being removed
     */
    cover_prefix = fib_entry_get_prefix(cover_index);
    cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);

    ip4_mtrie_16_route_del(&fib->mtrie,
                            addr, len, dpo->dpoi_index,
                            cover_prefix->fp_len,
                            cover_dpo->dpoi_index);
}

void
ip4_fib_16_table_walk (ip4_fib_16_t *fib,
                       fib_table_walk_fn_t fn,
                       void *ctx)
{
    ip4_fib_hash_table_walk(&fib->hash, fn, ctx);
}

void
ip4_fib_16_table_sub_tree_walk (ip4_fib_16_t *fib,
                                const fib_prefix_t *root,
                                fib_table_walk_fn_t fn,
                                void *ctx)
{
    ip4_fib_hash_table_sub_tree_walk(&fib->hash, root, fn, ctx);
}