4 * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
5 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
6 * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 #include "openbsd-tree.h"
27 #include <net/pfkeyv2.h>
31 #include "lib/ldp_sync.h"
33 /* forward declarations */
34 TAILQ_HEAD(mapping_head
, mapping_entry
);
40 union ldpd_addr src_addr
;
46 RB_ENTRY(adj
) global_entry
, nbr_entry
, ia_entry
;
47 struct in_addr lsr_id
;
50 struct hello_source source
;
51 struct thread
*inactivity_timer
;
53 union ldpd_addr trans_addr
;
55 RB_PROTOTYPE(global_adj_head
, adj
, global_entry
, adj_compare
)
56 RB_PROTOTYPE(nbr_adj_head
, adj
, nbr_entry
, adj_compare
)
57 RB_PROTOTYPE(ia_adj_head
, adj
, ia_entry
, adj_compare
)
62 struct ibuf_read
*rbuf
;
70 RB_ENTRY(nbr
) id_tree
, addr_tree
, pid_tree
;
72 struct nbr_adj_head adj_tree
; /* adjacencies */
73 struct thread
*ev_connect
;
74 struct thread
*keepalive_timer
;
75 struct thread
*keepalive_timeout
;
76 struct thread
*init_timeout
;
77 struct thread
*initdelay_timer
;
79 struct mapping_head mapping_list
;
80 struct mapping_head withdraw_list
;
81 struct mapping_head request_list
;
82 struct mapping_head release_list
;
83 struct mapping_head abortreq_list
;
85 uint32_t peerid
; /* unique ID in DB */
88 int v4_enabled
; /* announce/process v4 msgs */
89 int v6_enabled
; /* announce/process v6 msgs */
90 struct in_addr id
; /* lsr id */
91 union ldpd_addr laddr
; /* local address */
92 union ldpd_addr raddr
; /* remote address */
93 ifindex_t raddr_scope
; /* remote address scope (v6) */
100 uint16_t max_pdu_len
;
101 struct ldp_stats stats
;
107 enum auth_method method
;
108 char md5key
[TCP_MD5_KEY_LEN
];
112 #define F_NBR_GTSM_NEGOTIATED 0x01
113 #define F_NBR_CAP_DYNAMIC 0x02
114 #define F_NBR_CAP_TWCARD 0x04
115 #define F_NBR_CAP_UNOTIF 0x08
117 RB_HEAD(nbr_id_head
, nbr
);
118 RB_PROTOTYPE(nbr_id_head
, nbr
, id_tree
, nbr_id_compare
)
119 RB_HEAD(nbr_addr_head
, nbr
);
120 RB_PROTOTYPE(nbr_addr_head
, nbr
, addr_tree
, nbr_addr_compare
)
121 RB_HEAD(nbr_pid_head
, nbr
);
122 RB_PROTOTYPE(nbr_pid_head
, nbr
, pid_tree
, nbr_pid_compare
)
124 struct pending_conn
{
125 TAILQ_ENTRY(pending_conn
) entry
;
128 union ldpd_addr addr
;
129 struct thread
*ev_timeout
;
131 #define PENDING_CONN_TIMEOUT 5
133 struct mapping_entry
{
134 TAILQ_ENTRY(mapping_entry
) entry
;
143 extern struct ldpd_conf
*leconf
;
144 extern struct ldpd_sysdep sysdep
;
145 extern struct nbr_id_head nbrs_by_id
;
146 extern struct nbr_addr_head nbrs_by_addr
;
147 extern struct nbr_pid_head nbrs_by_pid
;
150 void accept_init(void);
151 int accept_add(int, void (*)(struct thread
*), void *);
152 void accept_del(int);
153 void accept_pause(void);
154 void accept_unpause(void);
157 int send_hello(enum hello_type
, struct iface_af
*, struct tnbr
*);
158 void recv_hello(struct in_addr
, struct ldp_msg
*, int, union ldpd_addr
*,
159 struct iface
*, int, char *, uint16_t);
162 void send_init(struct nbr
*);
163 int recv_init(struct nbr
*, char *, uint16_t);
164 void send_capability(struct nbr
*, uint16_t, int);
165 int recv_capability(struct nbr
*, char *, uint16_t);
168 void send_keepalive(struct nbr
*);
169 int recv_keepalive(struct nbr
*, char *, uint16_t);
172 void send_notification_full(struct tcp_conn
*, struct notify_msg
*);
173 void send_notification(struct tcp_conn
*, uint32_t, uint32_t, uint16_t);
174 void send_notification_rtlvs(struct nbr
*, uint32_t, uint32_t, uint16_t,
175 uint16_t, uint16_t, char *);
176 int recv_notification(struct nbr
*, char *, uint16_t);
177 int gen_status_tlv(struct ibuf
*, uint32_t, uint32_t, uint16_t);
180 void send_address_single(struct nbr
*, struct if_addr
*, int);
181 void send_address_all(struct nbr
*, int);
182 void send_mac_withdrawal(struct nbr
*, struct map
*, uint8_t *);
183 int recv_address(struct nbr
*, char *, uint16_t);
186 #define PREFIX_SIZE(x) (((x) + 7) / 8)
187 void send_labelmessage(struct nbr
*, uint16_t, struct mapping_head
*);
188 int recv_labelmessage(struct nbr
*, char *, uint16_t, uint16_t);
189 int gen_pw_status_tlv(struct ibuf
*, uint32_t);
190 uint16_t len_fec_tlv(struct map
*);
191 int gen_fec_tlv(struct ibuf
*, struct map
*);
192 int tlv_decode_fec_elm(struct nbr
*, struct ldp_msg
*, char *,
193 uint16_t, struct map
*);
197 void ldpe_init(struct ldpd_init
*);
198 int ldpe_imsg_compose_parent(int, pid_t
, void *,
200 void ldpe_imsg_compose_parent_sync(int, pid_t
, void *, uint16_t);
201 int ldpe_imsg_compose_lde(int, uint32_t, pid_t
, void *,
203 int ldpe_acl_check(char *, int, union ldpd_addr
*, uint8_t);
204 void ldpe_reset_nbrs(int);
205 void ldpe_reset_ds_nbrs(void);
206 void ldpe_remove_dynamic_tnbrs(int);
207 void ldpe_stop_init_backoff(int);
209 void ldpe_iface_ctl(struct ctl_conn
*c
, ifindex_t ifidx
);
210 void ldpe_adj_ctl(struct ctl_conn
*);
211 void ldpe_adj_detail_ctl(struct ctl_conn
*);
212 void ldpe_nbr_ctl(struct ctl_conn
*);
213 void ldpe_ldp_sync_ctl(struct ctl_conn
*);
214 void mapping_list_add(struct mapping_head
*, struct map
*);
215 void mapping_list_clr(struct mapping_head
*);
216 void ldpe_set_config_change_time(void);
219 struct iface
*if_new(const char *);
220 void ldpe_if_init(struct iface
*);
221 void ldpe_if_exit(struct iface
*);
222 struct iface
*if_lookup(struct ldpd_conf
*c
, ifindex_t ifidx
);
223 struct iface
*if_lookup_name(struct ldpd_conf
*, const char *);
224 void if_update_info(struct iface
*, struct kif
*);
225 struct iface_af
*iface_af_get(struct iface
*, int);
226 void if_addr_add(struct kaddr
*);
227 void if_addr_del(struct kaddr
*);
228 void ldp_if_update(struct iface
*, int);
229 void if_update_all(int);
230 uint16_t if_get_hello_holdtime(struct iface_af
*);
231 uint16_t if_get_hello_interval(struct iface_af
*);
232 uint16_t if_get_wait_for_sync_interval(void);
233 struct ctl_iface
*if_to_ctl(struct iface_af
*);
234 in_addr_t
if_get_ipv4_addr(struct iface
*);
235 int ldp_sync_fsm_adj_event(struct adj
*, enum ldp_sync_event
);
236 int ldp_sync_fsm_nbr_event(struct nbr
*, enum ldp_sync_event
);
237 int ldp_sync_fsm_state_req(struct ldp_igp_sync_if_state_req
*);
238 int ldp_sync_fsm(struct iface
*, enum ldp_sync_event
);
239 void ldp_sync_fsm_reset_all(void);
240 const char *ldp_sync_state_name(int);
241 const char *ldp_sync_event_name(int);
242 struct ctl_ldp_sync
*ldp_sync_to_ctl(struct iface
*);
245 struct adj
*adj_new(struct in_addr
, struct hello_source
*,
247 void adj_del(struct adj
*, uint32_t);
248 struct adj
*adj_find(struct in_addr
, struct hello_source
*);
249 int adj_get_af(const struct adj
*adj
);
250 void adj_start_itimer(struct adj
*);
251 void adj_stop_itimer(struct adj
*);
252 struct tnbr
*tnbr_new(int, union ldpd_addr
*);
253 struct tnbr
*tnbr_find(struct ldpd_conf
*, int, union ldpd_addr
*);
254 struct tnbr
*tnbr_check(struct ldpd_conf
*, struct tnbr
*);
255 void tnbr_update(struct tnbr
*);
256 void tnbr_update_all(int);
257 uint16_t tnbr_get_hello_holdtime(struct tnbr
*);
258 uint16_t tnbr_get_hello_interval(struct tnbr
*);
259 struct ctl_adj
*adj_to_ctl(struct adj
*);
262 int nbr_fsm(struct nbr
*, enum nbr_event
);
263 struct nbr
*nbr_new(struct in_addr
, int, int, union ldpd_addr
*,
265 void nbr_del(struct nbr
*);
266 struct nbr
*nbr_find_ldpid(uint32_t);
267 struct nbr
*nbr_get_first_ldpid(void);
268 struct nbr
*nbr_get_next_ldpid(uint32_t);
269 struct nbr
*nbr_find_addr(int, union ldpd_addr
*);
270 struct nbr
*nbr_find_peerid(uint32_t);
271 int nbr_adj_count(struct nbr
*, int);
272 int nbr_session_active_role(struct nbr
*);
273 void nbr_stop_ktimer(struct nbr
*);
274 void nbr_stop_ktimeout(struct nbr
*);
275 void nbr_stop_itimeout(struct nbr
*);
276 void nbr_start_idtimer(struct nbr
*);
277 void nbr_stop_idtimer(struct nbr
*);
278 int nbr_pending_idtimer(struct nbr
*);
279 int nbr_pending_connect(struct nbr
*);
280 int nbr_establish_connection(struct nbr
*);
281 int nbr_gtsm_enabled(struct nbr
*, struct nbr_params
*);
282 int nbr_gtsm_setup(int, int, struct nbr_params
*);
283 int nbr_gtsm_check(int, struct nbr
*, struct nbr_params
*);
284 struct nbr_params
*nbr_params_new(struct in_addr
);
285 struct nbr_params
*nbr_params_find(struct ldpd_conf
*, struct in_addr
);
286 uint16_t nbr_get_keepalive(int, struct in_addr
);
287 struct ctl_nbr
*nbr_to_ctl(struct nbr
*);
288 void nbr_clear_ctl(struct ctl_nbr
*);
291 int gen_ldp_hdr(struct ibuf
*, uint16_t);
292 int gen_msg_hdr(struct ibuf
*, uint16_t, uint16_t);
293 int send_packet(int, int, union ldpd_addr
*,
294 struct iface_af
*, void *, size_t);
295 void disc_recv_packet(struct thread
*thread
);
296 void session_accept(struct thread
*thread
);
297 void session_accept_nbr(struct nbr
*, int);
298 void session_shutdown(struct nbr
*, uint32_t, uint32_t,
300 void session_close(struct nbr
*);
301 struct tcp_conn
*tcp_new(int, struct nbr
*);
302 void pending_conn_del(struct pending_conn
*);
303 struct pending_conn
*pending_conn_find(int, union ldpd_addr
*);
305 extern char *pkt_ptr
; /* packet buffer */
309 int pfkey_read(int, struct sadb_msg
*);
310 int pfkey_establish(struct nbr
*, struct nbr_params
*);
311 int pfkey_remove(struct nbr
*);
312 int pfkey_init(void);
316 void ldpe_l2vpn_init(struct l2vpn
*);
317 void ldpe_l2vpn_exit(struct l2vpn
*);
318 void ldpe_l2vpn_pw_init(struct l2vpn_pw
*);
319 void ldpe_l2vpn_pw_exit(struct l2vpn_pw
*);
321 DECLARE_HOOK(ldp_nbr_state_change
, (struct nbr
* nbr
, int old_state
),
324 #endif /* _LDPE_H_ */