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1 | /* | |
2 | * Copyright (C) 2003 Yasuhiro Ohara | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef OSPF6_NEIGHBOR_H | |
22 | #define OSPF6_NEIGHBOR_H | |
23 | ||
24 | #include "hook.h" | |
25 | ||
26 | /* Debug option */ | |
27 | extern unsigned char conf_debug_ospf6_neighbor; | |
28 | #define OSPF6_DEBUG_NEIGHBOR_STATE 0x01 | |
29 | #define OSPF6_DEBUG_NEIGHBOR_EVENT 0x02 | |
30 | #define OSPF6_DEBUG_NEIGHBOR_ON(level) (conf_debug_ospf6_neighbor |= (level)) | |
31 | #define OSPF6_DEBUG_NEIGHBOR_OFF(level) (conf_debug_ospf6_neighbor &= ~(level)) | |
32 | #define IS_OSPF6_DEBUG_NEIGHBOR(level) \ | |
33 | (conf_debug_ospf6_neighbor & OSPF6_DEBUG_NEIGHBOR_##level) | |
34 | ||
35 | /* Neighbor structure */ | |
36 | struct ospf6_neighbor { | |
37 | /* Neighbor Router ID String */ | |
38 | char name[36]; | |
39 | ||
40 | /* OSPFv3 Interface this neighbor belongs to */ | |
41 | struct ospf6_interface *ospf6_if; | |
42 | ||
43 | /* Neighbor state */ | |
44 | uint8_t state; | |
45 | ||
46 | /* timestamp of last changing state */ | |
47 | uint32_t state_change; | |
48 | struct timeval last_changed; | |
49 | ||
50 | /* Neighbor Router ID */ | |
51 | uint32_t router_id; | |
52 | ||
53 | /* Neighbor Interface ID */ | |
54 | ifindex_t ifindex; | |
55 | ||
56 | /* Router Priority of this neighbor */ | |
57 | uint8_t priority; | |
58 | ||
59 | uint32_t drouter; | |
60 | uint32_t bdrouter; | |
61 | uint32_t prev_drouter; | |
62 | uint32_t prev_bdrouter; | |
63 | ||
64 | /* Options field (Capability) */ | |
65 | char options[3]; | |
66 | ||
67 | /* IPaddr of I/F on our side link */ | |
68 | struct in6_addr linklocal_addr; | |
69 | ||
70 | /* For Database Exchange */ | |
71 | uint8_t dbdesc_bits; | |
72 | uint32_t dbdesc_seqnum; | |
73 | /* Last received Database Description packet */ | |
74 | struct ospf6_dbdesc dbdesc_last; | |
75 | ||
76 | /* LS-list */ | |
77 | struct ospf6_lsdb *summary_list; | |
78 | struct ospf6_lsdb *request_list; | |
79 | struct ospf6_lsdb *retrans_list; | |
80 | ||
81 | /* LSA list for message transmission */ | |
82 | struct ospf6_lsdb *dbdesc_list; | |
83 | struct ospf6_lsdb *lsreq_list; | |
84 | struct ospf6_lsdb *lsupdate_list; | |
85 | struct ospf6_lsdb *lsack_list; | |
86 | ||
87 | struct ospf6_lsa *last_ls_req; | |
88 | ||
89 | /* Inactivity timer */ | |
90 | struct thread *inactivity_timer; | |
91 | ||
92 | /* Thread for sending message */ | |
93 | struct thread *thread_send_dbdesc; | |
94 | struct thread *thread_send_lsreq; | |
95 | struct thread *thread_send_lsupdate; | |
96 | struct thread *thread_send_lsack; | |
97 | ||
98 | /* BFD information */ | |
99 | void *bfd_info; | |
100 | }; | |
101 | ||
102 | /* Neighbor state */ | |
103 | #define OSPF6_NEIGHBOR_DOWN 1 | |
104 | #define OSPF6_NEIGHBOR_ATTEMPT 2 | |
105 | #define OSPF6_NEIGHBOR_INIT 3 | |
106 | #define OSPF6_NEIGHBOR_TWOWAY 4 | |
107 | #define OSPF6_NEIGHBOR_EXSTART 5 | |
108 | #define OSPF6_NEIGHBOR_EXCHANGE 6 | |
109 | #define OSPF6_NEIGHBOR_LOADING 7 | |
110 | #define OSPF6_NEIGHBOR_FULL 8 | |
111 | ||
112 | /* Neighbor Events */ | |
113 | #define OSPF6_NEIGHBOR_EVENT_NO_EVENT 0 | |
114 | #define OSPF6_NEIGHBOR_EVENT_HELLO_RCVD 1 | |
115 | #define OSPF6_NEIGHBOR_EVENT_TWOWAY_RCVD 2 | |
116 | #define OSPF6_NEIGHBOR_EVENT_NEGOTIATION_DONE 3 | |
117 | #define OSPF6_NEIGHBOR_EVENT_EXCHANGE_DONE 4 | |
118 | #define OSPF6_NEIGHBOR_EVENT_LOADING_DONE 5 | |
119 | #define OSPF6_NEIGHBOR_EVENT_ADJ_OK 6 | |
120 | #define OSPF6_NEIGHBOR_EVENT_SEQNUMBER_MISMATCH 7 | |
121 | #define OSPF6_NEIGHBOR_EVENT_BAD_LSREQ 8 | |
122 | #define OSPF6_NEIGHBOR_EVENT_ONEWAY_RCVD 9 | |
123 | #define OSPF6_NEIGHBOR_EVENT_INACTIVITY_TIMER 10 | |
124 | #define OSPF6_NEIGHBOR_EVENT_MAX_EVENT 11 | |
125 | ||
126 | extern const char *const ospf6_neighbor_event_str[]; | |
127 | ||
128 | static inline const char *ospf6_neighbor_event_string(int event) | |
129 | { | |
130 | #define OSPF6_NEIGHBOR_UNKNOWN_EVENT_STRING "UnknownEvent" | |
131 | ||
132 | if (event < OSPF6_NEIGHBOR_EVENT_MAX_EVENT) | |
133 | return ospf6_neighbor_event_str[event]; | |
134 | return OSPF6_NEIGHBOR_UNKNOWN_EVENT_STRING; | |
135 | } | |
136 | ||
137 | extern const char *const ospf6_neighbor_state_str[]; | |
138 | ||
139 | ||
140 | /* Function Prototypes */ | |
141 | int ospf6_neighbor_cmp(void *va, void *vb); | |
142 | void ospf6_neighbor_dbex_init(struct ospf6_neighbor *on); | |
143 | ||
144 | struct ospf6_neighbor *ospf6_neighbor_lookup(uint32_t, | |
145 | struct ospf6_interface *); | |
146 | struct ospf6_neighbor *ospf6_neighbor_create(uint32_t, | |
147 | struct ospf6_interface *); | |
148 | void ospf6_neighbor_delete(struct ospf6_neighbor *); | |
149 | ||
150 | /* Neighbor event */ | |
151 | extern int hello_received(struct thread *); | |
152 | extern int twoway_received(struct thread *); | |
153 | extern int negotiation_done(struct thread *); | |
154 | extern int exchange_done(struct thread *); | |
155 | extern int loading_done(struct thread *); | |
156 | extern int adj_ok(struct thread *); | |
157 | extern int seqnumber_mismatch(struct thread *); | |
158 | extern int bad_lsreq(struct thread *); | |
159 | extern int oneway_received(struct thread *); | |
160 | extern int inactivity_timer(struct thread *); | |
161 | extern void ospf6_check_nbr_loading(struct ospf6_neighbor *); | |
162 | ||
163 | extern void ospf6_neighbor_init(void); | |
164 | extern int config_write_ospf6_debug_neighbor(struct vty *vty); | |
165 | extern void install_element_ospf6_debug_neighbor(void); | |
166 | ||
167 | DECLARE_HOOK(ospf6_neighbor_change, | |
168 | (struct ospf6_neighbor * on, int state, int next_state), | |
169 | (on, state, next_state)) | |
170 | ||
171 | #endif /* OSPF6_NEIGHBOR_H */ |