summaryrefslogtreecommitdiffstats
path: root/src/plugins/linux-cp/lcp_interface.h
blob: be566a07cb66104d82857611d2c33ab9d02bca3d (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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/*
 * Copyright (c) 2020 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.
 */
#ifndef __LCP_ITF_PAIR_H__
#define __LCP_ITF_PAIR_H__

#include <vnet/dpo/dpo.h>
#include <vnet/adj/adj.h>
#include <vnet/ip/ip_types.h>

#include <plugins/linux-cp/lcp.h>

#define foreach_lcp_itf_pair_flag _ (STALE, 0, "stale")

typedef enum lip_flag_t_
{
#define _(a, b, c) LIP_FLAG_##a = (1 << b),
  foreach_lcp_itf_pair_flag
#undef _
} lip_flag_t;

typedef enum
{
  LCP_ITF_HOST_TAP = 0,
  LCP_ITF_HOST_TUN = 1,
} lip_host_type_t;

#define N_LCP_ITF_HOST (LCP_ITF_HOST_TUN + 1)

typedef struct lcp_itf_phy_adj
{
  adj_index_t adj_index[N_AF];
} lcp_itf_phy_adj_t;

/**
 * A pair of interfaces
 */
typedef struct lcp_itf_pair_t_
{
  u32 lip_host_sw_if_index;	  /* VPP's sw_if_index for the host tap */
  u32 lip_phy_sw_if_index;	  /* VPP's sw_if_index for the phy */
  u8 *lip_host_name;		  /* linux's name for the tap */
  u32 lip_vif_index;		  /* linux's index for the tap */
  u8 *lip_namespace;		  /* namespace in which the tap lives */
  lip_host_type_t lip_host_type;  /* type of host interface */
  lcp_itf_phy_adj_t lip_phy_adjs; /* adjacencies for phy l3 interface */
  lip_flag_t lip_flags;		  /* Flags */
  u8 lip_rewrite_len;		  /* The length of an L2 MAC rewrite */
  f64 lip_create_ts;		  /* Timestamp of creation */
} lcp_itf_pair_t;
extern lcp_itf_pair_t *lcp_itf_pair_pool;

extern vlib_node_registration_t lcp_ethernet_node;

u8 *format_lcp_itf_pair (u8 *s, va_list *args);
void lcp_itf_pair_show (u32 phy_sw_if_index);
u32 lcp_itf_num_pairs (void);

/**
 * Get an interface-pair object from its VPP index
 */
extern lcp_itf_pair_t *lcp_itf_pair_get (index_t index);

/**
 * Find a interface-pair object from the host interface
 *
 * @param host_sw_if_index host interface
 * @return VPP's object index
 */
extern index_t lcp_itf_pair_find_by_vif (u32 vif_index);

/**
 * Create an interface-pair
 *
 * @return error code
 */
extern int lcp_itf_pair_add (u32 host_sw_if_index, u32 phy_sw_if_index,
			     u8 *host_name, u32 host_index,
			     lip_host_type_t host_type, u8 *ns);
extern int lcp_itf_pair_add_sub (u32 vif, u8 *host_name, u32 sub_sw_if_index,
				 u32 phy_sw_if_index, u8 *ns);
extern int lcp_itf_pair_del (u32 phy_sw_if_index);

/**
 * Create an interface-pair from PHY sw_if_index and tap name.
 *
 * @return error code
 */
extern int lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
				lip_host_type_t host_if_type, u8 *ns,
				u32 *host_sw_if_indexp);

/**
 * Delete a LCP_ITF_PAIR
 */
extern int lcp_itf_pair_delete (u32 phy_sw_if_index);

/**
 * Callback function invoked during a walk of all interface-pairs
 */
typedef walk_rc_t (*lcp_itf_pair_walk_cb_t) (index_t index, void *ctx);

/**
 * Walk/visit each of the interface pairs
 */
extern void lcp_itf_pair_walk (lcp_itf_pair_walk_cb_t cb, void *ctx);

/**
 * Begin and End the replace process
 */
extern int lcp_itf_pair_replace_begin (void);
extern int lcp_itf_pair_replace_end (void);

/**
 * Retreive the pair in the DP
 */
extern index_t *lip_db_by_phy;
extern u32 *lip_db_by_host;

always_inline index_t
lcp_itf_pair_find_by_phy (u32 phy_sw_if_index)
{
  if (phy_sw_if_index >= vec_len (lip_db_by_phy))
    return INDEX_INVALID;
  return (lip_db_by_phy[phy_sw_if_index]);
}

always_inline index_t
lcp_itf_pair_find_by_host (u32 host_sw_if_index)
{
  if (host_sw_if_index >= vec_len (lip_db_by_host))
    return INDEX_INVALID;
  return (lip_db_by_host[host_sw_if_index]);
}

/**
 * manage interface auto creation
 */
void lcp_set_auto_intf (u8 is_auto);
int lcp_auto_intf (void);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */

#endif