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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2001 Yasuhiro Ohara
*/
#ifndef OSPF6_ASBR_H
#define OSPF6_ASBR_H
/* for struct ospf6_prefix */
#include "ospf6_proto.h"
/* for struct ospf6_lsa */
#include "ospf6_lsa.h"
/* for struct ospf6_route */
#include "ospf6_route.h"
/* Debug option */
extern unsigned char conf_debug_ospf6_asbr;
#define OSPF6_DEBUG_ASBR_ON() (conf_debug_ospf6_asbr = 1)
#define OSPF6_DEBUG_ASBR_OFF() (conf_debug_ospf6_asbr = 0)
#define IS_OSPF6_DEBUG_ASBR (conf_debug_ospf6_asbr)
struct ospf6_external_info {
/* External route type */
int type;
/* Originating Link State ID */
uint32_t id;
struct in6_addr forwarding;
route_tag_t tag;
ifindex_t ifindex;
};
/* OSPF6 ASBR Summarisation */
typedef enum {
OSPF6_ROUTE_AGGR_NONE = 0,
OSPF6_ROUTE_AGGR_ADD,
OSPF6_ROUTE_AGGR_DEL,
OSPF6_ROUTE_AGGR_MODIFY
} ospf6_aggr_action_t;
#define OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE 0x1
#define OSPF6_EXTERNAL_AGGRT_ORIGINATED 0x2
#define OSPF6_EXTERNAL_RT_COUNT(aggr) \
(((struct ospf6_external_aggr_rt *)aggr)->match_extnl_hash->count)
struct ospf6_external_aggr_rt {
/* range address and masklen */
struct prefix p;
/* use bits for OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE and
* OSPF6_EXTERNAL_AGGRT_ORIGINATED
*/
uint16_t aggrflags;
/* To store external metric-type */
uint8_t mtype;
/* Route tag for summary address */
route_tag_t tag;
/* To store aggregated metric config */
int metric;
/* To Store the LS ID when LSA is originated */
uint32_t id;
/* Action to be done after delay timer expiry */
int action;
/* OSPFv3 route generated by summary address. */
struct ospf6_route *route;
/* Hash table of matching external routes */
struct hash *match_extnl_hash;
};
/* AS-External-LSA */
#define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE 4U /* w/o IPv6 prefix */
struct ospf6_as_external_lsa {
uint32_t bits_metric;
struct ospf6_prefix prefix;
/* followed by none or one forwarding address */
/* followed by none or one external route tag */
/* followed by none or one referenced LS-ID */
};
#define OSPF6_ASBR_BIT_T ntohl (0x01000000)
#define OSPF6_ASBR_BIT_F ntohl (0x02000000)
#define OSPF6_ASBR_BIT_E ntohl (0x04000000)
#define OSPF6_ASBR_METRIC(E) \
(ntohl((E)->bits_metric & htonl(OSPF6_EXT_PATH_METRIC_MAX)))
#define OSPF6_ASBR_METRIC_SET(E, C) \
{ \
(E)->bits_metric &= htonl(~OSPF6_EXT_PATH_METRIC_MAX); \
(E)->bits_metric |= htonl(OSPF6_EXT_PATH_METRIC_MAX) & \
htonl(C); \
}
extern void ospf6_asbr_lsa_add(struct ospf6_lsa *lsa);
extern void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa,
struct ospf6_route *asbr_entry);
extern void ospf6_asbr_lsentry_add(struct ospf6_route *asbr_entry,
struct ospf6 *ospf6);
extern void ospf6_asbr_lsentry_remove(struct ospf6_route *asbr_entry,
struct ospf6 *ospf6);
extern int ospf6_asbr_is_asbr(struct ospf6 *o);
extern void ospf6_asbr_redistribute_add(int type, ifindex_t ifindex,
struct prefix *prefix,
unsigned int nexthop_num,
const struct in6_addr *nexthop,
route_tag_t tag, struct ospf6 *ospf6,
uint32_t metric);
extern void ospf6_asbr_redistribute_remove(int type, ifindex_t ifindex,
struct prefix *prefix,
struct ospf6 *ospf6);
extern int ospf6_redistribute_config_write(struct vty *vty,
struct ospf6 *ospf6);
extern void ospf6_asbr_init(void);
extern void ospf6_asbr_redistribute_disable(struct ospf6 *ospf6);
extern void ospf6_asbr_redistribute_reset(struct ospf6 *ospf6);
extern void ospf6_asbr_terminate(void);
extern void ospf6_asbr_send_externals_to_area(struct ospf6_area *);
extern void ospf6_asbr_remove_externals_from_area(struct ospf6_area *oa);
extern int config_write_ospf6_debug_asbr(struct vty *vty);
extern int ospf6_distribute_config_write(struct vty *vty, struct ospf6 *ospf6);
extern void install_element_ospf6_debug_asbr(void);
extern void ospf6_asbr_update_route_ecmp_path(struct ospf6_route *old,
struct ospf6_route *route,
struct ospf6 *ospf6);
extern void ospf6_asbr_distribute_list_update(struct ospf6 *ospf6,
struct ospf6_redist *red);
struct ospf6_redist *ospf6_redist_lookup(struct ospf6 *ospf6, int type,
unsigned short instance);
extern void ospf6_asbr_routemap_update(const char *mapname);
extern struct ospf6_lsa *
ospf6_as_external_lsa_originate(struct ospf6_route *route,
struct ospf6 *ospf6);
extern void ospf6_asbr_status_update(struct ospf6 *ospf6, int status);
int ospf6_asbr_external_rt_advertise(struct ospf6 *ospf6,
struct prefix *p);
int ospf6_external_aggr_delay_timer_set(struct ospf6 *ospf6, uint16_t interval);
int ospf6_asbr_external_rt_no_advertise(struct ospf6 *ospf6,
struct prefix *p);
struct ospf6_external_aggr_rt *
ospf6_external_aggr_config_lookup(struct ospf6 *ospf6, struct prefix *p);
int ospf6_external_aggr_config_set(struct ospf6 *ospf6, struct prefix *p,
route_tag_t tag, int metric, int mtype);
int ospf6_external_aggr_config_unset(struct ospf6 *ospf6,
struct prefix *p);
void ospf6_handle_external_lsa_origination(struct ospf6 *ospf6,
struct ospf6_route *rt,
struct prefix *p);
void ospf6_external_aggregator_free(struct ospf6_external_aggr_rt *aggr);
void ospf6_unset_all_aggr_flag(struct ospf6 *ospf6);
void ospf6_fill_aggr_route_details(struct ospf6 *ospf6,
struct ospf6_external_aggr_rt *aggr);
void ospf6_asbr_summary_config_delete(struct ospf6 *ospf6,
struct route_node *rn);
#endif /* OSPF6_ASBR_H */
|
