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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
|
// SPDX-License-Identifier: ISC
/* $OpenBSD$ */
/*
* Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
* Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
*/
#ifndef _LDPE_H_
#define _LDPE_H_
#include "queue.h"
#include "openbsd-tree.h"
#ifdef __OpenBSD__
#include <net/pfkeyv2.h>
#endif
#include "ldpd.h"
#include "lib/ldp_sync.h"
/* forward declarations */
TAILQ_HEAD(mapping_head, mapping_entry);
struct hello_source {
enum hello_type type;
struct {
struct iface_af *ia;
union ldpd_addr src_addr;
} link;
struct tnbr *target;
};
struct adj {
RB_ENTRY(adj) global_entry, nbr_entry, ia_entry;
struct in_addr lsr_id;
struct nbr *nbr;
int ds_tlv;
struct hello_source source;
struct event *inactivity_timer;
uint16_t holdtime;
union ldpd_addr trans_addr;
};
RB_PROTOTYPE(global_adj_head, adj, global_entry, adj_compare)
RB_PROTOTYPE(nbr_adj_head, adj, nbr_entry, adj_compare)
RB_PROTOTYPE(ia_adj_head, adj, ia_entry, adj_compare)
struct tcp_conn {
struct nbr *nbr;
int fd;
struct ibuf_read *rbuf;
struct evbuf wbuf;
struct event *rev;
in_port_t lport;
in_port_t rport;
};
struct nbr {
RB_ENTRY(nbr) id_tree, addr_tree, pid_tree;
struct tcp_conn *tcp;
struct nbr_adj_head adj_tree; /* adjacencies */
struct event *ev_connect;
struct event *keepalive_timer;
struct event *keepalive_timeout;
struct event *init_timeout;
struct event *initdelay_timer;
struct mapping_head mapping_list;
struct mapping_head withdraw_list;
struct mapping_head request_list;
struct mapping_head release_list;
struct mapping_head abortreq_list;
uint32_t peerid; /* unique ID in DB */
int af;
int ds_tlv;
int v4_enabled; /* announce/process v4 msgs */
int v6_enabled; /* announce/process v6 msgs */
struct in_addr id; /* lsr id */
union ldpd_addr laddr; /* local address */
union ldpd_addr raddr; /* remote address */
ifindex_t raddr_scope; /* remote address scope (v6) */
time_t uptime;
int fd;
int state;
uint32_t conf_seqnum;
int idtimer_cnt;
uint16_t keepalive;
uint16_t max_pdu_len;
struct ldp_stats stats;
struct {
uint8_t established;
uint32_t spi_in;
uint32_t spi_out;
enum auth_method method;
char md5key[TCP_MD5_KEY_LEN];
} auth;
int flags;
};
#define F_NBR_GTSM_NEGOTIATED 0x01
#define F_NBR_CAP_DYNAMIC 0x02
#define F_NBR_CAP_TWCARD 0x04
#define F_NBR_CAP_UNOTIF 0x08
RB_HEAD(nbr_id_head, nbr);
RB_PROTOTYPE(nbr_id_head, nbr, id_tree, nbr_id_compare)
RB_HEAD(nbr_addr_head, nbr);
RB_PROTOTYPE(nbr_addr_head, nbr, addr_tree, nbr_addr_compare)
RB_HEAD(nbr_pid_head, nbr);
RB_PROTOTYPE(nbr_pid_head, nbr, pid_tree, nbr_pid_compare)
struct pending_conn {
TAILQ_ENTRY(pending_conn) entry;
int fd;
int af;
union ldpd_addr addr;
struct event *ev_timeout;
};
#define PENDING_CONN_TIMEOUT 5
struct mapping_entry {
TAILQ_ENTRY(mapping_entry) entry;
struct map map;
};
struct ldpd_sysdep {
uint8_t no_pfkey;
uint8_t no_md5sig;
};
extern struct ldpd_conf *leconf;
extern struct ldpd_sysdep sysdep;
extern struct nbr_id_head nbrs_by_id;
extern struct nbr_addr_head nbrs_by_addr;
extern struct nbr_pid_head nbrs_by_pid;
/* accept.c */
void accept_init(void);
int accept_add(int, void (*)(struct event *), void *);
void accept_del(int);
void accept_pause(void);
void accept_unpause(void);
/* hello.c */
int send_hello(enum hello_type, struct iface_af *, struct tnbr *);
void recv_hello(struct in_addr, struct ldp_msg *, int, union ldpd_addr *,
struct iface *, int, char *, uint16_t);
/* init.c */
void send_init(struct nbr *);
int recv_init(struct nbr *, char *, uint16_t);
void send_capability(struct nbr *, uint16_t, int);
int recv_capability(struct nbr *, char *, uint16_t);
/* keepalive.c */
void send_keepalive(struct nbr *);
int recv_keepalive(struct nbr *, char *, uint16_t);
/* notification.c */
void send_notification_full(struct tcp_conn *, struct notify_msg *);
void send_notification(struct tcp_conn *, uint32_t, uint32_t, uint16_t);
void send_notification_rtlvs(struct nbr *, uint32_t, uint32_t, uint16_t,
uint16_t, uint16_t, char *);
int recv_notification(struct nbr *, char *, uint16_t);
int gen_status_tlv(struct ibuf *, uint32_t, uint32_t, uint16_t);
/* address.c */
void send_address_single(struct nbr *, struct if_addr *, int);
void send_address_all(struct nbr *, int);
void send_mac_withdrawal(struct nbr *, struct map *, uint8_t *);
int recv_address(struct nbr *, char *, uint16_t);
/* labelmapping.c */
#define PREFIX_SIZE(x) (((x) + 7) / 8)
void send_labelmessage(struct nbr *, uint16_t, struct mapping_head *);
int recv_labelmessage(struct nbr *, char *, uint16_t, uint16_t);
int gen_pw_status_tlv(struct ibuf *, uint32_t);
uint16_t len_fec_tlv(struct map *);
int gen_fec_tlv(struct ibuf *, struct map *);
int tlv_decode_fec_elm(struct nbr *, struct ldp_msg *, char *,
uint16_t, struct map *);
/* ldpe.c */
void ldpe(void);
void ldpe_init(struct ldpd_init *);
int ldpe_imsg_compose_parent(int, pid_t, void *,
uint16_t);
void ldpe_imsg_compose_parent_sync(int, pid_t, void *, uint16_t);
int ldpe_imsg_compose_lde(int, uint32_t, pid_t, void *,
uint16_t);
int ldpe_acl_check(char *, int, union ldpd_addr *, uint8_t);
void ldpe_reset_nbrs(int);
void ldpe_reset_ds_nbrs(void);
void ldpe_remove_dynamic_tnbrs(int);
void ldpe_stop_init_backoff(int);
struct ctl_conn;
void ldpe_iface_ctl(struct ctl_conn *c, ifindex_t ifidx);
void ldpe_adj_ctl(struct ctl_conn *);
void ldpe_adj_detail_ctl(struct ctl_conn *);
void ldpe_nbr_ctl(struct ctl_conn *);
void ldpe_ldp_sync_ctl(struct ctl_conn *);
void mapping_list_add(struct mapping_head *, struct map *);
void mapping_list_clr(struct mapping_head *);
void ldpe_set_config_change_time(void);
/* interface.c */
struct iface *if_new(const char *);
void ldpe_if_init(struct iface *);
void ldpe_if_exit(struct iface *);
struct iface *if_lookup(struct ldpd_conf *c, ifindex_t ifidx);
struct iface *if_lookup_name(struct ldpd_conf *, const char *);
void if_update_info(struct iface *, struct kif *);
struct iface_af *iface_af_get(struct iface *, int);
void if_addr_add(struct kaddr *);
void if_addr_del(struct kaddr *);
void ldp_if_update(struct iface *, int);
void if_update_all(int);
uint16_t if_get_hello_holdtime(struct iface_af *);
uint16_t if_get_hello_interval(struct iface_af *);
uint16_t if_get_wait_for_sync_interval(void);
struct ctl_iface *if_to_ctl(struct iface_af *);
in_addr_t if_get_ipv4_addr(struct iface *);
int ldp_sync_fsm_adj_event(struct adj *, enum ldp_sync_event);
int ldp_sync_fsm_nbr_event(struct nbr *, enum ldp_sync_event);
int ldp_sync_fsm_state_req(struct ldp_igp_sync_if_state_req *);
int ldp_sync_fsm(struct iface *, enum ldp_sync_event);
void ldp_sync_fsm_reset_all(void);
const char *ldp_sync_state_name(int);
const char *ldp_sync_event_name(int);
struct ctl_ldp_sync *ldp_sync_to_ctl(struct iface *);
/* adjacency.c */
struct adj *adj_new(struct in_addr, struct hello_source *,
union ldpd_addr *);
void adj_del(struct adj *, uint32_t);
struct adj *adj_find(struct in_addr, struct hello_source *);
int adj_get_af(const struct adj *adj);
void adj_start_itimer(struct adj *);
void adj_stop_itimer(struct adj *);
struct tnbr *tnbr_new(int, union ldpd_addr *);
struct tnbr *tnbr_find(struct ldpd_conf *, int, union ldpd_addr *);
struct tnbr *tnbr_check(struct ldpd_conf *, struct tnbr *);
void tnbr_update(struct tnbr *);
void tnbr_update_all(int);
uint16_t tnbr_get_hello_holdtime(struct tnbr *);
uint16_t tnbr_get_hello_interval(struct tnbr *);
struct ctl_adj *adj_to_ctl(struct adj *);
/* neighbor.c */
int nbr_fsm(struct nbr *, enum nbr_event);
struct nbr *nbr_new(struct in_addr, int, int, union ldpd_addr *,
uint32_t);
void nbr_del(struct nbr *);
struct nbr *nbr_find_ldpid(uint32_t);
struct nbr *nbr_get_first_ldpid(void);
struct nbr *nbr_get_next_ldpid(uint32_t);
struct nbr *nbr_find_addr(int, union ldpd_addr *);
struct nbr *nbr_find_peerid(uint32_t);
int nbr_adj_count(struct nbr *, int);
int nbr_session_active_role(struct nbr *);
void nbr_stop_ktimer(struct nbr *);
void nbr_stop_ktimeout(struct nbr *);
void nbr_stop_itimeout(struct nbr *);
void nbr_start_idtimer(struct nbr *);
void nbr_stop_idtimer(struct nbr *);
int nbr_pending_idtimer(struct nbr *);
int nbr_pending_connect(struct nbr *);
int nbr_establish_connection(struct nbr *);
int nbr_gtsm_enabled(struct nbr *, struct nbr_params *);
int nbr_gtsm_setup(int, int, struct nbr_params *);
int nbr_gtsm_check(int, struct nbr *, struct nbr_params *);
struct nbr_params *nbr_params_new(struct in_addr);
struct nbr_params *nbr_params_find(struct ldpd_conf *, struct in_addr);
uint16_t nbr_get_keepalive(int, struct in_addr);
struct ctl_nbr *nbr_to_ctl(struct nbr *);
void nbr_clear_ctl(struct ctl_nbr *);
/* packet.c */
int gen_ldp_hdr(struct ibuf *, uint16_t);
int gen_msg_hdr(struct ibuf *, uint16_t, uint16_t);
int send_packet(int, int, union ldpd_addr *,
struct iface_af *, void *, size_t);
void disc_recv_packet(struct event *thread);
void session_accept(struct event *thread);
void session_accept_nbr(struct nbr *, int);
void session_shutdown(struct nbr *, uint32_t, uint32_t,
uint32_t);
void session_close(struct nbr *);
struct tcp_conn *tcp_new(int, struct nbr *);
void pending_conn_del(struct pending_conn *);
struct pending_conn *pending_conn_find(int, union ldpd_addr *);
extern char *pkt_ptr; /* packet buffer */
/* pfkey.c */
#ifdef __OpenBSD__
int pfkey_read(int, struct sadb_msg *);
int pfkey_establish(struct nbr *, struct nbr_params *);
int pfkey_remove(struct nbr *);
int pfkey_init(void);
#endif
/* l2vpn.c */
void ldpe_l2vpn_init(struct l2vpn *);
void ldpe_l2vpn_exit(struct l2vpn *);
void ldpe_l2vpn_pw_init(struct l2vpn_pw *);
void ldpe_l2vpn_pw_exit(struct l2vpn_pw *);
DECLARE_HOOK(ldp_nbr_state_change, (struct nbr * nbr, int old_state),
(nbr, old_state));
#endif /* _LDPE_H_ */
|
