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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/*
* Zebra VxLAN (EVPN) Data structures and definitions
* These are "internal" to this function.
* Copyright (C) 2016, 2017 Cumulus Networks, Inc.
*
* This file is part of FRR.
*
* FRR is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* FRR is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with FRR; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _ZEBRA_VXLAN_PRIVATE_H
#define _ZEBRA_VXLAN_PRIVATE_H
#include <zebra.h>
#include "if.h"
#include "linklist.h"
#include "zebra_vxlan.h"
#include "zebra_evpn.h"
#include "zebra_evpn_mac.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ERR_STR_SZ 256
/* definitions */
typedef struct zebra_l3vni_t_ zebra_l3vni_t;
/* L3 VNI hash table */
struct zebra_l3vni_t_ {
/* VNI key */
vni_t vni;
/* vrf_id */
vrf_id_t vrf_id;
uint32_t filter;
#define PREFIX_ROUTES_ONLY (1 << 0) /* l3-vni used for prefix routes only */
/* Local IP */
struct in_addr local_vtep_ip;
/* kernel interface for l3vni */
struct interface *vxlan_if;
/* SVI interface corresponding to the l3vni */
struct interface *svi_if;
struct interface *mac_vlan_if;
/* list of L2 VNIs associated with the L3 VNI */
struct list *l2vnis;
/* list of remote router-macs */
struct hash *rmac_table;
/* list of remote vtep-ip neigh */
struct hash *nh_table;
};
/* get the vx-intf name for l3vni */
static inline const char *zl3vni_vxlan_if_name(zebra_l3vni_t *zl3vni)
{
return zl3vni->vxlan_if ? zl3vni->vxlan_if->name : "None";
}
/* get the svi intf name for l3vni */
static inline const char *zl3vni_svi_if_name(zebra_l3vni_t *zl3vni)
{
return zl3vni->svi_if ? zl3vni->svi_if->name : "None";
}
/* get the vrf name for l3vni */
static inline const char *zl3vni_vrf_name(zebra_l3vni_t *zl3vni)
{
return vrf_id_to_name(zl3vni->vrf_id);
}
/* get the rmac string */
static inline const char *zl3vni_rmac2str(zebra_l3vni_t *zl3vni, char *buf,
int size)
{
char *ptr;
if (!buf)
ptr = XMALLOC(MTYPE_TMP, ETHER_ADDR_STRLEN * sizeof(char));
else {
assert(size >= ETHER_ADDR_STRLEN);
ptr = buf;
}
if (zl3vni->mac_vlan_if)
snprintf(ptr, (ETHER_ADDR_STRLEN),
"%02x:%02x:%02x:%02x:%02x:%02x",
(uint8_t)zl3vni->mac_vlan_if->hw_addr[0],
(uint8_t)zl3vni->mac_vlan_if->hw_addr[1],
(uint8_t)zl3vni->mac_vlan_if->hw_addr[2],
(uint8_t)zl3vni->mac_vlan_if->hw_addr[3],
(uint8_t)zl3vni->mac_vlan_if->hw_addr[4],
(uint8_t)zl3vni->mac_vlan_if->hw_addr[5]);
else if (zl3vni->svi_if)
snprintf(ptr, (ETHER_ADDR_STRLEN),
"%02x:%02x:%02x:%02x:%02x:%02x",
(uint8_t)zl3vni->svi_if->hw_addr[0],
(uint8_t)zl3vni->svi_if->hw_addr[1],
(uint8_t)zl3vni->svi_if->hw_addr[2],
(uint8_t)zl3vni->svi_if->hw_addr[3],
(uint8_t)zl3vni->svi_if->hw_addr[4],
(uint8_t)zl3vni->svi_if->hw_addr[5]);
else
snprintf(ptr, ETHER_ADDR_STRLEN, "None");
return ptr;
}
/* get the sys mac string */
static inline const char *zl3vni_sysmac2str(zebra_l3vni_t *zl3vni, char *buf,
int size)
{
char *ptr;
if (!buf)
ptr = XMALLOC(MTYPE_TMP, ETHER_ADDR_STRLEN * sizeof(char));
else {
assert(size >= ETHER_ADDR_STRLEN);
ptr = buf;
}
if (zl3vni->svi_if)
snprintf(ptr, (ETHER_ADDR_STRLEN),
"%02x:%02x:%02x:%02x:%02x:%02x",
(uint8_t)zl3vni->svi_if->hw_addr[0],
(uint8_t)zl3vni->svi_if->hw_addr[1],
(uint8_t)zl3vni->svi_if->hw_addr[2],
(uint8_t)zl3vni->svi_if->hw_addr[3],
(uint8_t)zl3vni->svi_if->hw_addr[4],
(uint8_t)zl3vni->svi_if->hw_addr[5]);
else
snprintf(ptr, ETHER_ADDR_STRLEN, "None");
return ptr;
}
/*
* l3-vni is oper up when:
* 0. if EVPN is enabled (advertise-all-vni cfged)
* 1. it is associated to a vxlan-intf
* 2. Associated vxlan-intf is oper up
* 3. it is associated to an SVI
* 4. associated SVI is oper up
*/
static inline int is_l3vni_oper_up(zebra_l3vni_t *zl3vni)
{
return (is_evpn_enabled() && zl3vni && (zl3vni->vrf_id != VRF_UNKNOWN)
&& zl3vni->vxlan_if && if_is_operative(zl3vni->vxlan_if)
&& zl3vni->svi_if && if_is_operative(zl3vni->svi_if));
}
static inline const char *zl3vni_state2str(zebra_l3vni_t *zl3vni)
{
if (!zl3vni)
return NULL;
if (is_l3vni_oper_up(zl3vni))
return "Up";
else
return "Down";
return NULL;
}
static inline vrf_id_t zl3vni_vrf_id(zebra_l3vni_t *zl3vni)
{
return zl3vni->vrf_id;
}
static inline void zl3vni_get_svi_rmac(zebra_l3vni_t *zl3vni,
struct ethaddr *rmac)
{
if (!zl3vni)
return;
if (!is_l3vni_oper_up(zl3vni))
return;
if (zl3vni->svi_if && if_is_operative(zl3vni->svi_if))
memcpy(rmac->octet, zl3vni->svi_if->hw_addr, ETH_ALEN);
}
/* context for neigh hash walk - update l3vni and rmac */
struct neigh_l3info_walk_ctx {
zebra_evpn_t *zevpn;
zebra_l3vni_t *zl3vni;
int add;
};
struct nh_walk_ctx {
struct vty *vty;
struct json_object *json;
};
extern zebra_l3vni_t *zl3vni_from_vrf(vrf_id_t vrf_id);
extern struct interface *zl3vni_map_to_vxlan_if(zebra_l3vni_t *zl3vni);
extern struct interface *zl3vni_map_to_svi_if(zebra_l3vni_t *zl3vni);
extern struct interface *zl3vni_map_to_mac_vlan_if(zebra_l3vni_t *zl3vni);
extern zebra_l3vni_t *zl3vni_lookup(vni_t vni);
DECLARE_HOOK(zebra_rmac_update, (zebra_mac_t *rmac, zebra_l3vni_t *zl3vni,
bool delete, const char *reason), (rmac, zl3vni, delete, reason))
#ifdef __cplusplus
}
#endif
/*
* Multicast hash table.
*
* This table contains -
* 1. The (S, G) entries used for encapsulating and forwarding BUM traffic.
* S is the local VTEP-IP and G is a BUM mcast group address.
* 2. The (X, G) entries used for terminating a BUM flow.
* Multiple L2-VNIs can share the same MDT hence the need to maintain
* an aggregated table that pimd can consume without much
* re-interpretation.
*/
typedef struct zebra_vxlan_sg_ {
struct zebra_vrf *zvrf;
struct prefix_sg sg;
char sg_str[PREFIX_SG_STR_LEN];
/* For SG - num of L2 VNIs using this entry for sending BUM traffic */
/* For XG - num of SG using this as parent */
uint32_t ref_cnt;
} zebra_vxlan_sg_t;
extern zebra_evpn_t *zevpn_lookup(vni_t vni);
extern void zebra_vxlan_sync_mac_dp_install(zebra_mac_t *mac, bool set_inactive,
bool force_clear_static, const char *caller);
#endif /* _ZEBRA_VXLAN_PRIVATE_H */
|
