Line data Source code
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_INTERFACE_H
22 : #define OSPF6_INTERFACE_H
23 :
24 : #include "qobj.h"
25 : #include "hook.h"
26 : #include "if.h"
27 : #include "ospf6d.h"
28 :
29 : DECLARE_MTYPE(OSPF6_AUTH_MANUAL_KEY);
30 :
31 : #include "lib/libospf.h"
32 : #include "ospf6_neighbor.h"
33 :
34 : /* Debug option */
35 : extern unsigned char conf_debug_ospf6_interface;
36 : #define OSPF6_DEBUG_INTERFACE_ON() (conf_debug_ospf6_interface = 1)
37 : #define OSPF6_DEBUG_INTERFACE_OFF() (conf_debug_ospf6_interface = 0)
38 : #define IS_OSPF6_DEBUG_INTERFACE (conf_debug_ospf6_interface)
39 :
40 : struct ospf6_auth_data {
41 : /* config data */
42 : uint8_t hash_algo; /* hash algorithm type */
43 : uint16_t key_id; /* key-id used as SA in auth packet */
44 : char *auth_key; /* Auth key */
45 : char *keychain; /* keychain name */
46 :
47 : /* operational data */
48 : uint8_t flags; /* Flags related to auth config */
49 :
50 : /* Counters and Statistics */
51 : uint32_t tx_drop; /* Pkt drop due to auth fail while sending */
52 : uint32_t rx_drop; /* Pkt drop due to auth fail while reading */
53 : };
54 :
55 : /* Interface structure */
56 : struct ospf6_interface {
57 : /* IF info from zebra */
58 : struct interface *interface;
59 :
60 : /* back pointer */
61 : struct ospf6_area *area;
62 :
63 : uint32_t area_id;
64 : int area_id_format;
65 :
66 : /* list of ospf6 neighbor */
67 : struct list *neighbor_list;
68 :
69 : /* linklocal address of this I/F */
70 : struct in6_addr *linklocal_addr;
71 :
72 : /* Interface ID; use interface->ifindex */
73 :
74 : /* ospf6 instance id */
75 : uint8_t instance_id;
76 :
77 : /* I/F transmission delay */
78 : uint32_t transdelay;
79 :
80 : /* Packet send buffer. */
81 : struct ospf6_fifo *obuf; /* Output queue */
82 :
83 : /* Network Type */
84 : uint8_t type;
85 : bool type_cfg;
86 :
87 : /* P2P/P2MP behavior: */
88 :
89 : /* disable hellos on standard multicast? */
90 : bool p2xp_no_multicast_hello;
91 : /* only allow explicitly configured neighbors? */
92 : bool p2xp_only_cfg_neigh;
93 : /* override mode default for advertising connected prefixes.
94 : * both false by default (= do include for PtP, exclude for PtMP)
95 : */
96 : bool p2xp_connected_pfx_include;
97 : bool p2xp_connected_pfx_exclude;
98 :
99 : struct ospf6_if_p2xp_neighcfgs_head p2xp_neighs;
100 :
101 : /* Router Priority */
102 : uint8_t priority;
103 :
104 : /* Time Interval */
105 : uint16_t hello_interval;
106 : uint16_t dead_interval;
107 : uint32_t rxmt_interval;
108 :
109 : uint32_t state_change;
110 :
111 : /* Cost */
112 : uint32_t cost;
113 :
114 : /* I/F MTU */
115 : uint32_t ifmtu;
116 :
117 : /* Configured MTU */
118 : uint32_t c_ifmtu;
119 :
120 : /* Interface State */
121 : uint8_t state;
122 :
123 : /* Interface socket setting trial counter, resets on success */
124 : uint8_t sso_try_cnt;
125 : struct thread *thread_sso;
126 :
127 : /* OSPF6 Interface flag */
128 : char flag;
129 :
130 : /* MTU mismatch check */
131 : uint8_t mtu_ignore;
132 :
133 : /* Authentication trailer related config */
134 : struct ospf6_auth_data at_data;
135 :
136 : /* Decision of DR Election */
137 : in_addr_t drouter;
138 : in_addr_t bdrouter;
139 : in_addr_t prev_drouter;
140 : in_addr_t prev_bdrouter;
141 :
142 : /* Linklocal LSA Database: includes Link-LSA */
143 : struct ospf6_lsdb *lsdb;
144 : struct ospf6_lsdb *lsdb_self;
145 :
146 : struct ospf6_lsdb *lsupdate_list;
147 : struct ospf6_lsdb *lsack_list;
148 :
149 : /* Ongoing Tasks */
150 : struct thread *thread_send_hello;
151 : struct thread *thread_send_lsupdate;
152 : struct thread *thread_send_lsack;
153 :
154 : struct thread *thread_network_lsa;
155 : struct thread *thread_link_lsa;
156 : struct thread *thread_intra_prefix_lsa;
157 : struct thread *thread_as_extern_lsa;
158 : struct thread *thread_wait_timer;
159 :
160 : struct ospf6_route_table *route_connected;
161 :
162 : /* last hello sent */
163 : struct timeval last_hello;
164 :
165 : /* prefix-list name to filter connected prefix */
166 : char *plist_name;
167 :
168 : /* BFD information */
169 : struct {
170 : bool enabled;
171 : uint8_t detection_multiplier;
172 : uint32_t min_rx;
173 : uint32_t min_tx;
174 : char *profile;
175 : } bfd_config;
176 :
177 : int on_write_q;
178 :
179 : /* Statistics Fields */
180 : uint32_t hello_in;
181 : uint32_t hello_out;
182 : uint32_t db_desc_in;
183 : uint32_t db_desc_out;
184 : uint32_t ls_req_in;
185 : uint32_t ls_req_out;
186 : uint32_t ls_upd_in;
187 : uint32_t ls_upd_out;
188 : uint32_t ls_ack_in;
189 : uint32_t ls_ack_out;
190 : uint32_t discarded;
191 :
192 : QOBJ_FIELDS;
193 : };
194 : DECLARE_QOBJ_TYPE(ospf6_interface);
195 :
196 : /* interface state */
197 : #define OSPF6_INTERFACE_NONE 0
198 : #define OSPF6_INTERFACE_DOWN 1
199 : #define OSPF6_INTERFACE_LOOPBACK 2
200 : #define OSPF6_INTERFACE_WAITING 3
201 : #define OSPF6_INTERFACE_POINTTOPOINT 4
202 : #define OSPF6_INTERFACE_POINTTOMULTIPOINT 5
203 : #define OSPF6_INTERFACE_VIRTUALLINK 6
204 : #define OSPF6_INTERFACE_DROTHER 7
205 : #define OSPF6_INTERFACE_BDR 8
206 : #define OSPF6_INTERFACE_DR 9
207 : #define OSPF6_INTERFACE_MAX 10
208 :
209 : extern const char *const ospf6_interface_state_str[];
210 :
211 : /* flags */
212 : #define OSPF6_INTERFACE_DISABLE 0x01
213 : #define OSPF6_INTERFACE_PASSIVE 0x02
214 : #define OSPF6_INTERFACE_NOAUTOCOST 0x04
215 :
216 : /* default values */
217 : #define OSPF6_INTERFACE_HELLO_INTERVAL 10
218 : #define OSPF6_INTERFACE_DEAD_INTERVAL 40
219 : #define OSPF6_INTERFACE_RXMT_INTERVAL 5
220 : #define OSPF6_INTERFACE_COST 1
221 : #define OSPF6_INTERFACE_PRIORITY 1
222 : #define OSPF6_INTERFACE_TRANSDELAY 1
223 : #define OSPF6_INTERFACE_INSTANCE_ID 0
224 : #define OSPF6_INTERFACE_BANDWIDTH 10000 /* Mbps */
225 : #define OSPF6_REFERENCE_BANDWIDTH 100000 /* Mbps */
226 : #define OSPF6_INTERFACE_SSO_RETRY_INT 1
227 : #define OSPF6_INTERFACE_SSO_RETRY_MAX 5
228 :
229 : /* Function Prototypes */
230 :
231 : extern void ospf6_interface_start(struct ospf6_interface *oi);
232 : extern void ospf6_interface_stop(struct ospf6_interface *oi);
233 :
234 : extern struct ospf6_interface *
235 : ospf6_interface_lookup_by_ifindex(ifindex_t, vrf_id_t vrf_id);
236 : extern struct ospf6_interface *ospf6_interface_create(struct interface *ifp);
237 : extern void ospf6_interface_delete(struct ospf6_interface *oi);
238 :
239 : /* "basic" interface = used for virtual links */
240 : extern struct ospf6_interface *ospf6_interface_basic_create(struct interface *);
241 : extern void ospf6_interface_basic_delete(struct ospf6_interface *oi);
242 :
243 : extern void ospf6_interface_enable(struct ospf6_interface *oi);
244 : extern void ospf6_interface_disable(struct ospf6_interface *oi);
245 :
246 : extern void ospf6_interface_state_update(struct interface *ifp);
247 : extern void ospf6_interface_connected_route_update(struct interface *ifp);
248 : extern struct in6_addr *
249 : ospf6_interface_get_global_address(struct interface *ifp);
250 : extern bool ospf6_interface_addr_valid(struct ospf6_interface *oi,
251 : struct connected *c, bool debug);
252 :
253 : /* interface event */
254 : extern void interface_up(struct thread *thread);
255 : extern void interface_down(struct thread *thread);
256 : extern void wait_timer(struct thread *thread);
257 : extern void backup_seen(struct thread *thread);
258 : extern void neighbor_change(struct thread *thread);
259 :
260 : extern void ospf6_interface_init(void);
261 : extern void ospf6_interface_clear(struct interface *ifp);
262 :
263 : extern void install_element_ospf6_clear_interface(void);
264 :
265 : extern int config_write_ospf6_debug_interface(struct vty *vty);
266 : extern void install_element_ospf6_debug_interface(void);
267 : extern int ospf6_interface_neighbor_count(struct ospf6_interface *oi);
268 : extern uint8_t dr_election(struct ospf6_interface *oi);
269 :
270 : extern void ospf6_interface_auth_trailer_cmd_init(void);
271 : extern void ospf6_auth_write_config(struct vty *vty,
272 : struct ospf6_auth_data *at_data);
273 :
274 8 : static inline const char *ospf6_ifname(const struct ospf6_interface *oi)
275 : {
276 8 : return oi->type == OSPF_IFTYPE_VIRTUALLINK ? "vlink"
277 8 : : oi->interface->name;
278 : }
279 :
280 : DECLARE_HOOK(ospf6_interface_change,
281 : (struct ospf6_interface * oi, int state, int old_state),
282 : (oi, state, old_state));
283 :
284 : #ifdef _FRR_ATTRIBUTE_PRINTFRR
285 : #pragma FRR printfrr_ext "%pOI" (struct ospf6_interface *)
286 : #endif
287 :
288 : #endif /* OSPF6_INTERFACE_H */
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