blob: 4ff94c120dbf8768d5b8147a743f322bfa93588a (
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
|
/*
* BIRD -- Multi-Threaded Routing Toolkit (MRT) Protocol
*
* (c) 2017--2018 Ondrej Zajicek <santiago@crfreenet.org>
* (c) 2017--2018 CZ.NIC z.s.p.o.
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_MRT_H_
#define _BIRD_MRT_H_
#include "nest/bird.h"
#include "nest/protocol.h"
#include "lib/lists.h"
#include "nest/route.h"
#include "lib/event.h"
#include "lib/hash.h"
struct mrt_config {
struct proto_config c;
struct rtable_config *table_cf;
const char *table_expr;
const struct filter *filter;
const char *filename;
uint period;
int always_add_path;
};
struct mrt_proto {
struct proto p;
timer *timer;
event *event;
struct mrt_target *file;
struct mrt_table_dump_state *table_dump;
};
struct mrt_dump_data {
const char *table_expr;
struct rtable *table_ptr;
const struct filter *filter;
const char *filename;
};
struct mrt_peer_entry {
u32 index;
u32 peer_id;
u32 peer_as;
ip_addr peer_ip;
struct mrt_peer_entry *next;
};
struct mrt_table_dump_state {
struct mrt_proto *proto; /* Protocol for regular MRT dumps (or NULL) */
struct cli *cli; /* CLI for irregular MRT dumps (or NULL) */
struct config *config; /* Config valid during start of dump, locked */
/* Configuration information */
const char *table_expr; /* Wildcard for table name (or NULL) */
struct rtable *table_ptr; /* Explicit table (or NULL) */
const struct filter *filter; /* Optional filter */
const char *filename; /* Filename pattern */
int always_add_path; /* Always use *_ADDPATH message subtypes */
/* Allocated by mrt_table_dump_init() */
pool *pool; /* Pool for table dump */
linpool *linpool; /* Temporary linear pool */
linpool *peer_lp; /* Linear pool for peer entries in peer_hash */
buffer buf; /* Buffer for MRT messages */
HASH(struct mrt_peer_entry) peer_hash; /* Hash for peers to find the index */
struct rtable *table; /* Processed table, NULL initially */
struct fib_iterator fit; /* Iterator in processed table */
int table_open; /* Whether iterator is linked */
int ipv4; /* Processed table is IPv4 */
int add_path; /* Current message subtype is *_ADDPATH */
int want_add_path; /* Want *_ADDPATH message later */
int max; /* Decreasing counter of dumped routes */
u32 seqnum; /* MRT message sequence number */
btime time_offset; /* Time offset between monotonic and real time */
struct bgp_write_state *bws; /* */
u16 peer_count; /* Number of peers */
u32 peer_count_offset; /* Buffer offset to store peer_count later */
u16 entry_count; /* Number of RIB Entries */
u32 entry_count_offset; /* Buffer offset to store entry_count later */
struct rfile *file; /* tracking for mrt table dump file */
int fd;
};
struct mrt_bgp_data {
uint peer_as;
uint local_as;
uint index;
uint af;
ip_addr peer_ip;
ip_addr local_ip;
byte *message;
uint msg_len;
uint old_state;
uint new_state;
u8 as4;
u8 add_path;
};
#define MRT_HDR_LENGTH 12 /* MRT Timestamp + MRT Type + MRT Subtype + MRT Load Length */
#define MRT_PEER_TYPE_32BIT_ASN 2 /* MRT Table Dump: Peer Index Table: Peer Type: Use 32bit ASN */
#define MRT_PEER_TYPE_IPV6 1 /* MRT Table Dump: Peer Index Table: Peer Type: Use IPv6 IP Address */
#define MRT_ATTR_BUFFER_SIZE 65536
/* MRT Types */
#define MRT_TABLE_DUMP_V2 13
#define MRT_BGP4MP 16
/* MRT Table Dump v2 Subtypes */
#define MRT_PEER_INDEX_TABLE 1
#define MRT_RIB_IPV4_UNICAST 2
#define MRT_RIB_IPV4_MULTICAST 3
#define MRT_RIB_IPV6_UNICAST 4
#define MRT_RIB_IPV6_MULTICAST 5
#define MRT_RIB_GENERIC 6
#define MRT_RIB_IPV4_UNICAST_ADDPATH 8
#define MRT_RIB_IPV4_MULTICAST_ADDPATH 9
#define MRT_RIB_IPV6_UNICAST_ADDPATH 10
#define MRT_RIB_IPV6_MULTICAST_ADDPATH 11
#define MRT_RIB_GENERIC_ADDPATH 12
/* MRT BGP4MP Subtypes */
#define MRT_BGP4MP_MESSAGE 1
#define MRT_BGP4MP_MESSAGE_AS4 4
#define MRT_BGP4MP_STATE_CHANGE_AS4 5
#define MRT_BGP4MP_MESSAGE_LOCAL 6
#define MRT_BGP4MP_MESSAGE_AS4_LOCAL 7
#define MRT_BGP4MP_MESSAGE_ADDPATH 8
#define MRT_BGP4MP_MESSAGE_AS4_ADDPATH 9
#define MRT_BGP4MP_MESSAGE_LOCAL_ADDPATH 10
#define MRT_BGP4MP_MESSAGE_AS4_LOCAL_ADDPATH 11
#ifdef CONFIG_MRT
void mrt_dump_cmd(struct mrt_dump_data *d);
void mrt_dump_bgp_message(struct mrt_bgp_data *d);
void mrt_dump_bgp_state_change(struct mrt_bgp_data *d);
void mrt_check_config(struct proto_config *C);
#else
static inline void mrt_dump_bgp_message(struct mrt_bgp_data *d UNUSED) { }
static inline void mrt_dump_bgp_state_change(struct mrt_bgp_data *d UNUSED) { }
#endif
#endif /* _BIRD_MRT_H_ */
|
