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
|
/* $OpenBSD: eigrpe.h,v 1.2 2015/10/04 23:08:57 renato Exp $ */
/*
* Copyright (c) 2015 Renato Westphal <renato@openbsd.org>
* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _EIGRPE_H_
#define _EIGRPE_H_
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
TAILQ_HEAD(ctl_conns, ctl_conn) ctl_conns;
struct pbuf {
struct ibuf *buf;
int refcnt;
};
struct packet {
TAILQ_ENTRY(packet) entry;
struct nbr *nbr;
uint32_t seq_num;
struct pbuf *pbuf;
struct event ev_timeout;
int attempts;
};
struct nbr {
RB_ENTRY(nbr) addr_tree, pid_tree;
TAILQ_ENTRY(nbr) entry;
struct event ev_ack;
struct event ev_hello_timeout;
struct eigrp_iface *ei;
union eigrpd_addr addr;
uint32_t peerid;
time_t uptime;
uint16_t hello_holdtime;
uint8_t flags;
struct rinfo_head update_list; /* unicast updates */
struct rinfo_head query_list; /* unicast queries */
struct rinfo_head reply_list; /* unicast replies */
/* RTP */
uint32_t recv_seq;
uint32_t next_mcast_seq;
TAILQ_HEAD(, packet) retrans_list;
};
#define F_EIGRP_NBR_SELF 0x01
#define F_EIGRP_NBR_PENDING 0x02
#define F_EIGRP_NBR_CR_MODE 0x04
#define PREFIX_SIZE4(x) (((x - 1) / 8) + 1)
#define PREFIX_SIZE6(x) ((x == 128) ? 16 : ((x / 8) + 1))
/* eigrpe.c */
pid_t eigrpe(struct eigrpd_conf *, int[2], int[2], int[2]);
void eigrpe_dispatch_main(int, short, void *);
void eigrpe_dispatch_rde(int, short, void *);
int eigrpe_imsg_compose_parent(int, pid_t, void *, uint16_t);
int eigrpe_imsg_compose_rde(int, uint32_t, pid_t, void *,
uint16_t);
void eigrpe_instance_init(struct eigrp *);
void eigrpe_instance_del(struct eigrp *);
void message_add(struct rinfo_head *, struct rinfo *);
void message_list_clr(struct rinfo_head *);
void seq_addr_list_clr(struct seq_addr_head *);
void eigrpe_orig_local_route(struct eigrp_iface *,
struct if_addr *, int);
void eigrpe_iface_ctl(struct ctl_conn *, unsigned int);
void eigrpe_nbr_ctl(struct ctl_conn *);
/* interface.c */
struct iface *if_new(struct eigrpd_conf *, struct kif *);
void if_del(struct iface *);
void if_init(struct eigrpd_conf *, struct iface *);
struct iface *if_lookup(struct eigrpd_conf *, unsigned int);
struct if_addr *if_addr_new(struct iface *, struct kaddr *);
void if_addr_del(struct iface *, struct kaddr *);
struct if_addr *if_addr_lookup(struct if_addr_head *, struct kaddr *);
in_addr_t if_primary_addr(struct iface *);
uint8_t if_primary_addr_prefixlen(struct iface *);
void if_update(struct iface *, int);
struct eigrp_iface *eigrp_if_new(struct eigrpd_conf *, struct eigrp *,
struct kif *);
void eigrp_if_del(struct eigrp_iface *);
void eigrp_if_start(struct eigrp_iface *);
void eigrp_if_reset(struct eigrp_iface *);
struct eigrp_iface *eigrp_if_lookup(struct iface *, int, uint16_t);
struct eigrp_iface *eigrp_iface_find_id(uint32_t);
struct ctl_iface *if_to_ctl(struct eigrp_iface *);
void if_set_sockbuf(int);
int if_join_ipv4_group(struct iface *, struct in_addr *);
int if_leave_ipv4_group(struct iface *, struct in_addr *);
int if_set_ipv4_mcast_ttl(int, uint8_t);
int if_set_ipv4_mcast(struct iface *);
int if_set_ipv4_mcast_loop(int);
int if_set_ipv4_recvif(int, int);
int if_set_ipv4_hdrincl(int);
int if_join_ipv6_group(struct iface *, struct in6_addr *);
int if_leave_ipv6_group(struct iface *, struct in6_addr *);
int if_set_ipv6_mcast(struct iface *);
int if_set_ipv6_mcast_loop(int);
int if_set_ipv6_pktinfo(int, int);
int if_set_ipv6_dscp(int, int);
/* neighbor.c */
struct nbr *nbr_new(struct eigrp_iface *, union eigrpd_addr *,
uint16_t, int);
void nbr_init(struct nbr *);
void nbr_del(struct nbr *);
void nbr_update_peerid(struct nbr *);
struct nbr *nbr_find(struct eigrp_iface *, union eigrpd_addr *);
struct nbr *nbr_find_peerid(uint32_t);
struct ctl_nbr *nbr_to_ctl(struct nbr *);
void nbr_timeout(int, short, void *);
void nbr_start_timeout(struct nbr *);
void nbr_stop_timeout(struct nbr *);
/* rtp.c */
struct pbuf *rtp_buf_new(struct ibuf *);
struct pbuf *rtp_buf_hold(struct pbuf *);
void rtp_buf_release(struct pbuf *);
struct packet *rtp_packet_new(struct nbr *, uint32_t, struct pbuf *);
void rtp_packet_del(struct packet *);
void rtp_process_ack(struct nbr *, uint32_t);
void rtp_send_packet(struct packet *);
void rtp_enqueue_packet(struct packet *);
void rtp_send_ucast(struct nbr *, struct ibuf *);
void rtp_send_mcast(struct eigrp_iface *, struct ibuf *);
void rtp_send(struct eigrp_iface *, struct nbr *, struct ibuf *);
void rtp_send_ack(struct nbr *);
void rtp_ack_timer(int, short, void *);
void rtp_ack_start_timer(struct nbr *);
void rtp_ack_stop_timer(struct nbr *);
/* packet.c */
int gen_eigrp_hdr(struct ibuf *, uint16_t, uint8_t, uint32_t,
uint16_t);
int send_packet(struct eigrp_iface *, struct nbr *, uint32_t,
struct ibuf *);
void recv_packet_v4(int, short, void *);
void recv_packet_v6(int, short, void *);
/* tlv.c */
int gen_parameter_tlv(struct ibuf *, struct eigrp_iface *);
int gen_sequence_tlv(struct ibuf *,
struct seq_addr_head *);
int gen_sw_version_tlv(struct ibuf *);
int gen_mcast_seq_tlv(struct ibuf *, uint32_t);
uint16_t len_route_tlv(struct rinfo *);
int gen_route_tlv(struct ibuf *, struct rinfo *);
struct tlv_parameter *tlv_decode_parameter(struct tlv *, char *);
int tlv_decode_seq(int, struct tlv *, char *,
struct seq_addr_head *);
struct tlv_sw_version *tlv_decode_sw_version(struct tlv *, char *);
struct tlv_mcast_seq *tlv_decode_mcast_seq(struct tlv *, char *);
int tlv_decode_route(int, enum route_type, struct tlv *,
char *, struct rinfo *);
void metric_encode_mtu(uint8_t *, int);
int metric_decode_mtu(uint8_t *);
/* hello.c */
void send_hello(struct eigrp_iface *, struct seq_addr_head *, uint32_t);
void recv_hello(struct eigrp_iface *, union eigrpd_addr *, struct nbr *,
struct tlv_parameter *);
/* update.c */
void send_update(struct eigrp_iface *, struct nbr *, uint32_t, int,
struct rinfo_head *);
void recv_update(struct nbr *, struct rinfo_head *, uint32_t);
/* query.c */
void send_query(struct eigrp_iface *, struct nbr *, struct rinfo_head *,
int);
void recv_query(struct nbr *, struct rinfo_head *, int);
/* reply.c */
void send_reply(struct nbr *, struct rinfo_head *, int);
void recv_reply(struct nbr *, struct rinfo_head *, int);
char *pkt_ptr; /* packet buffer */
#endif /* _EIGRPE_H_ */
|
