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.
24 #include "openbsd-queue.h"
25 #include "openbsd-tree.h"
27 #include <net/pfkeyv2.h>
32 #define min(x,y) ((x) <= (y) ? (x) : (y))
33 #define max(x,y) ((x) > (y) ? (x) : (y))
35 /* forward declarations */
36 TAILQ_HEAD(mapping_head
, mapping_entry
);
42 union ldpd_addr src_addr
;
48 RB_ENTRY(adj
) global_entry
, nbr_entry
, ia_entry
;
49 struct in_addr lsr_id
;
52 struct hello_source source
;
53 struct thread
*inactivity_timer
;
55 union ldpd_addr trans_addr
;
57 RB_PROTOTYPE(global_adj_head
, adj
, global_entry
, adj_compare
)
58 RB_PROTOTYPE(nbr_adj_head
, adj
, nbr_entry
, adj_compare
)
59 RB_PROTOTYPE(ia_adj_head
, adj
, ia_entry
, adj_compare
)
64 struct ibuf_read
*rbuf
;
72 RB_ENTRY(nbr
) id_tree
, addr_tree
, pid_tree
;
74 struct nbr_adj_head adj_tree
; /* adjacencies */
75 struct thread
*ev_connect
;
76 struct thread
*keepalive_timer
;
77 struct thread
*keepalive_timeout
;
78 struct thread
*init_timeout
;
79 struct thread
*initdelay_timer
;
81 struct mapping_head mapping_list
;
82 struct mapping_head withdraw_list
;
83 struct mapping_head request_list
;
84 struct mapping_head release_list
;
85 struct mapping_head abortreq_list
;
87 uint32_t peerid
; /* unique ID in DB */
90 int v4_enabled
; /* announce/process v4 msgs */
91 int v6_enabled
; /* announce/process v6 msgs */
92 struct in_addr id
; /* lsr id */
93 union ldpd_addr laddr
; /* local address */
94 union ldpd_addr raddr
; /* remote address */
95 uint32_t raddr_scope
; /* remote address scope (v6) */
102 uint16_t max_pdu_len
;
108 enum auth_method method
;
109 char md5key
[TCP_MD5_KEY_LEN
];
113 #define F_NBR_GTSM_NEGOTIATED 0x01
114 #define F_NBR_CAP_DYNAMIC 0x02
115 #define F_NBR_CAP_TWCARD 0x04
116 #define F_NBR_CAP_UNOTIF 0x08
118 RB_HEAD(nbr_id_head
, nbr
);
119 RB_PROTOTYPE(nbr_id_head
, nbr
, id_tree
, nbr_id_compare
)
120 RB_HEAD(nbr_addr_head
, nbr
);
121 RB_PROTOTYPE(nbr_addr_head
, nbr
, addr_tree
, nbr_addr_compare
)
122 RB_HEAD(nbr_pid_head
, nbr
);
123 RB_PROTOTYPE(nbr_pid_head
, nbr
, pid_tree
, nbr_pid_compare
)
125 struct pending_conn
{
126 TAILQ_ENTRY(pending_conn
) entry
;
129 union ldpd_addr addr
;
130 struct thread
*ev_timeout
;
132 #define PENDING_CONN_TIMEOUT 5
134 struct mapping_entry
{
135 TAILQ_ENTRY(mapping_entry
) entry
;
144 extern struct ldpd_conf
*leconf
;
145 extern struct ldpd_sysdep sysdep
;
146 extern struct nbr_id_head nbrs_by_id
;
147 extern struct nbr_addr_head nbrs_by_addr
;
148 extern struct nbr_pid_head nbrs_by_pid
;
151 void accept_init(void);
152 int accept_add(int, int (*)(struct thread
*), void *);
153 void accept_del(int);
154 void accept_pause(void);
155 void accept_unpause(void);
158 int send_hello(enum hello_type
, struct iface_af
*, struct tnbr
*);
159 void recv_hello(struct in_addr
, struct ldp_msg
*, int, union ldpd_addr
*,
160 struct iface
*, int, char *, uint16_t);
163 void send_init(struct nbr
*);
164 int recv_init(struct nbr
*, char *, uint16_t);
165 void send_capability(struct nbr
*, uint16_t, int);
166 int recv_capability(struct nbr
*, char *, uint16_t);
169 void send_keepalive(struct nbr
*);
170 int recv_keepalive(struct nbr
*, char *, uint16_t);
173 void send_notification_full(struct tcp_conn
*, struct notify_msg
*);
174 void send_notification(struct tcp_conn
*, uint32_t, uint32_t, uint16_t);
175 void send_notification_rtlvs(struct nbr
*, uint32_t, uint32_t, uint16_t,
176 uint16_t, uint16_t, char *);
177 int recv_notification(struct nbr
*, char *, uint16_t);
178 int gen_status_tlv(struct ibuf
*, uint32_t, uint32_t, uint16_t);
181 void send_address_single(struct nbr
*, struct if_addr
*, int);
182 void send_address_all(struct nbr
*, int);
183 void send_mac_withdrawal(struct nbr
*, struct map
*, uint8_t *);
184 int recv_address(struct nbr
*, char *, uint16_t);
187 #define PREFIX_SIZE(x) (((x) + 7) / 8)
188 void send_labelmessage(struct nbr
*, uint16_t, struct mapping_head
*);
189 int recv_labelmessage(struct nbr
*, char *, uint16_t, uint16_t);
190 int gen_pw_status_tlv(struct ibuf
*, uint32_t);
191 uint16_t len_fec_tlv(struct map
*);
192 int gen_fec_tlv(struct ibuf
*, struct map
*);
193 int tlv_decode_fec_elm(struct nbr
*, struct ldp_msg
*, char *,
194 uint16_t, struct map
*);
197 void ldpe(const char *, const char *, const char *);
198 int ldpe_imsg_compose_parent(int, pid_t
, void *,
200 int ldpe_imsg_compose_lde(int, uint32_t, pid_t
, void *,
202 int ldpe_acl_check(char *, int, union ldpd_addr
*, uint8_t);
203 void ldpe_reset_nbrs(int);
204 void ldpe_reset_ds_nbrs(void);
205 void ldpe_remove_dynamic_tnbrs(int);
206 void ldpe_stop_init_backoff(int);
208 void ldpe_iface_ctl(struct ctl_conn
*, unsigned int);
209 void ldpe_adj_ctl(struct ctl_conn
*);
210 void ldpe_nbr_ctl(struct ctl_conn
*);
211 void mapping_list_add(struct mapping_head
*, struct map
*);
212 void mapping_list_clr(struct mapping_head
*);
215 struct iface
*if_new(struct kif
*);
216 void if_exit(struct iface
*);
217 struct iface
*if_lookup(struct ldpd_conf
*, unsigned short);
218 struct iface
*if_lookup_name(struct ldpd_conf
*, const char *);
219 void if_update_info(struct iface
*, struct kif
*);
220 struct iface_af
*iface_af_get(struct iface
*, int);
221 void if_addr_add(struct kaddr
*);
222 void if_addr_del(struct kaddr
*);
223 void ldp_if_update(struct iface
*, int);
224 void if_update_all(int);
225 uint16_t if_get_hello_holdtime(struct iface_af
*);
226 uint16_t if_get_hello_interval(struct iface_af
*);
227 struct ctl_iface
*if_to_ctl(struct iface_af
*);
228 in_addr_t
if_get_ipv4_addr(struct iface
*);
231 struct adj
*adj_new(struct in_addr
, struct hello_source
*,
233 void adj_del(struct adj
*, uint32_t);
234 struct adj
*adj_find(struct hello_source
*);
235 int adj_get_af(struct adj
*adj
);
236 void adj_start_itimer(struct adj
*);
237 void adj_stop_itimer(struct adj
*);
238 struct tnbr
*tnbr_new(int, union ldpd_addr
*);
239 struct tnbr
*tnbr_find(struct ldpd_conf
*, int, union ldpd_addr
*);
240 struct tnbr
*tnbr_check(struct ldpd_conf
*, struct tnbr
*);
241 void tnbr_update(struct tnbr
*);
242 void tnbr_update_all(int);
243 uint16_t tnbr_get_hello_holdtime(struct tnbr
*);
244 uint16_t tnbr_get_hello_interval(struct tnbr
*);
245 struct ctl_adj
*adj_to_ctl(struct adj
*);
248 int nbr_fsm(struct nbr
*, enum nbr_event
);
249 struct nbr
*nbr_new(struct in_addr
, int, int, union ldpd_addr
*,
251 void nbr_del(struct nbr
*);
252 struct nbr
*nbr_find_ldpid(uint32_t);
253 struct nbr
*nbr_find_addr(int, union ldpd_addr
*);
254 struct nbr
*nbr_find_peerid(uint32_t);
255 int nbr_adj_count(struct nbr
*, int);
256 int nbr_session_active_role(struct nbr
*);
257 void nbr_stop_ktimer(struct nbr
*);
258 void nbr_stop_ktimeout(struct nbr
*);
259 void nbr_stop_itimeout(struct nbr
*);
260 void nbr_start_idtimer(struct nbr
*);
261 void nbr_stop_idtimer(struct nbr
*);
262 int nbr_pending_idtimer(struct nbr
*);
263 int nbr_pending_connect(struct nbr
*);
264 int nbr_establish_connection(struct nbr
*);
265 int nbr_gtsm_enabled(struct nbr
*, struct nbr_params
*);
266 int nbr_gtsm_setup(int, int, struct nbr_params
*);
267 int nbr_gtsm_check(int, struct nbr
*, struct nbr_params
*);
268 struct nbr_params
*nbr_params_new(struct in_addr
);
269 struct nbr_params
*nbr_params_find(struct ldpd_conf
*, struct in_addr
);
270 uint16_t nbr_get_keepalive(int, struct in_addr
);
271 struct ctl_nbr
*nbr_to_ctl(struct nbr
*);
272 void nbr_clear_ctl(struct ctl_nbr
*);
275 int gen_ldp_hdr(struct ibuf
*, uint16_t);
276 int gen_msg_hdr(struct ibuf
*, uint16_t, uint16_t);
277 int send_packet(int, int, union ldpd_addr
*,
278 struct iface_af
*, void *, size_t);
279 int disc_recv_packet(struct thread
*);
280 int session_accept(struct thread
*);
281 void session_accept_nbr(struct nbr
*, int);
282 void session_shutdown(struct nbr
*, uint32_t, uint32_t,
284 void session_close(struct nbr
*);
285 struct tcp_conn
*tcp_new(int, struct nbr
*);
286 void pending_conn_del(struct pending_conn
*);
287 struct pending_conn
*pending_conn_find(int, union ldpd_addr
*);
289 char *pkt_ptr
; /* packet buffer */
293 int pfkey_read(int, struct sadb_msg
*);
294 int pfkey_establish(struct nbr
*, struct nbr_params
*);
295 int pfkey_remove(struct nbr
*);
296 int pfkey_init(void);
300 void ldpe_l2vpn_init(struct l2vpn
*);
301 void ldpe_l2vpn_exit(struct l2vpn
*);
302 void ldpe_l2vpn_pw_init(struct l2vpn_pw
*);
303 void ldpe_l2vpn_pw_exit(struct l2vpn_pw
*);
305 #endif /* _LDPE_H_ */