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
|
/*
* BIRD -- Router Advertisement Configuration
*
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "proto/radv/radv.h"
CF_DEFINES
#define RADV_CFG ((struct radv_config *) this_proto)
#define RADV_IFACE ((struct radv_iface_config *) this_ipatt)
#define RADV_PREFIX this_radv_prefix
static struct radv_prefix_config *this_radv_prefix;
CF_DECLS
CF_KEYWORDS(RADV, PREFIX, INTERFACE, MIN, MAX, RA, DELAY, INTERVAL,
MANAGED, OTHER, CONFIG, LINK, MTU, REACHABLE, TIME, RETRANS,
TIMER, CURRENT, HOP, LIMIT, DEFAULT, VALID, PREFERRED,
LIFETIME, SKIP, ONLINK, AUTONOMOUS)
CF_GRAMMAR
CF_ADDTO(proto, radv_proto '}')
radv_proto_start: proto_start RADV
{
this_proto = proto_config_new(&proto_radv, sizeof(struct radv_config), $1);
init_list(&RADV_CFG->patt_list);
init_list(&RADV_CFG->pref_list);
};
radv_proto_item:
proto_item
| PREFIX radv_prefix { add_tail(&RADV_CFG->pref_list, NODE this_radv_prefix); }
| INTERFACE radv_iface
;
radv_proto_opts:
/* empty */
| radv_proto_opts radv_proto_item ';'
;
radv_proto:
radv_proto_start proto_name '{' radv_proto_opts;
radv_iface_start:
{
this_ipatt = cfg_allocz(sizeof(struct radv_iface_config));
add_tail(&RADV_CFG->patt_list, NODE this_ipatt);
init_list(&this_ipatt->ipn_list);
init_list(&RADV_IFACE->pref_list);
RADV_IFACE->min_ra_int = -1; /* undefined */
RADV_IFACE->max_ra_int = DEFAULT_MAX_RA_INT;
RADV_IFACE->min_delay = DEFAULT_MIN_DELAY;
RADV_IFACE->current_hop_limit = DEFAULT_CURRENT_HOP_LIMIT;
RADV_IFACE->default_lifetime = -1;
};
radv_iface_item:
MIN RA INTERVAL expr { RADV_IFACE->min_ra_int = $4; if ($4 < 3) cf_error("Min RA interval must be at least 3"); }
| MAX RA INTERVAL expr { RADV_IFACE->max_ra_int = $4; if (($4 < 4) || ($4 > 1800)) cf_error("Max RA interval must be in range 4-1800"); }
| MIN DELAY expr { RADV_IFACE->min_delay = $3; if ($3 <= 0) cf_error("Min delay must be positive"); }
| MANAGED bool { RADV_IFACE->managed = $2; }
| OTHER CONFIG bool { RADV_IFACE->other_config = $3; }
| LINK MTU expr { RADV_IFACE->link_mtu = $3; if ($3 < 0) cf_error("Link MTU must be 0 or positive"); }
| REACHABLE TIME expr { RADV_IFACE->reachable_time = $3; if (($3 < 0) || ($3 > 3600000)) cf_error("Reachable time must be in range 0-3600000"); }
| RETRANS TIMER expr { RADV_IFACE->retrans_timer = $3; if ($3 < 0) cf_error("Retrans timer must be 0 or positive"); }
| CURRENT HOP LIMIT expr { RADV_IFACE->current_hop_limit = $4; if (($4 < 0) || ($4 > 255)) cf_error("Current hop limit must be in range 0-255"); }
| DEFAULT LIFETIME expr { RADV_IFACE->default_lifetime = $3; if (($3 < 0) || ($3 > 9000)) cf_error("Default lifetime must be in range 0-9000"); }
| PREFIX radv_prefix { add_tail(&RADV_IFACE->pref_list, NODE this_radv_prefix); }
;
radv_iface_finish:
{
struct radv_iface_config *ic = RADV_IFACE;
if (ic->min_ra_int == (u32) -1)
ic->min_ra_int = _MAX(ic->max_ra_int / 3, 3);
if (ic->default_lifetime == (u32) -1)
ic->default_lifetime = 3 * ic->max_ra_int;
if ((ic->min_ra_int > 3) &&
(ic->min_ra_int > (ic->max_ra_int * 3 / 4)))
cf_error("Min RA interval must be at most 3/4 * Max RA interval %d %d", ic->min_ra_int, ic->max_ra_int);
if ((ic->default_lifetime > 0) && (ic->default_lifetime < ic->max_ra_int))
cf_error("Default lifetime must be either 0 or at least Max RA interval");
};
radv_iface_opts:
/* empty */
| radv_iface_opts radv_iface_item ';'
;
radv_iface_opt_list:
/* empty */
| '{' radv_iface_opts '}'
;
radv_iface:
radv_iface_start iface_patt_list radv_iface_opt_list radv_iface_finish;
radv_prefix_start: prefix
{
this_radv_prefix = cfg_allocz(sizeof(struct radv_prefix_config));
RADV_PREFIX->prefix = $1.addr;
RADV_PREFIX->pxlen = $1.len;
RADV_PREFIX->onlink = 1;
RADV_PREFIX->autonomous = 1;
RADV_PREFIX->valid_lifetime = DEFAULT_VALID_LIFETIME;
RADV_PREFIX->preferred_lifetime = DEFAULT_PREFERRED_LIFETIME;
};
radv_prefix_item:
SKIP bool { RADV_PREFIX->skip = $2; }
| ONLINK bool { RADV_PREFIX->onlink = $2; }
| AUTONOMOUS bool { RADV_PREFIX->autonomous = $2; }
| VALID LIFETIME expr { RADV_PREFIX->valid_lifetime = $3; if ($3 < 0) cf_error("Valid lifetime must be 0 or positive"); }
| PREFERRED LIFETIME expr { RADV_PREFIX->preferred_lifetime = $3; if ($3 < 0) cf_error("Preferred lifetime must be 0 or positive"); }
;
radv_prefix_finish:
{
if (RADV_PREFIX->preferred_lifetime > RADV_PREFIX->valid_lifetime)
cf_error("Preferred lifetime must be at most Valid lifetime");
};
radv_prefix_opts:
/* empty */
| radv_prefix_opts radv_prefix_item ';'
;
radv_prefix_opt_list:
/* empty */
| '{' radv_prefix_opts '}'
;
radv_prefix:
radv_prefix_start radv_prefix_opt_list radv_prefix_finish;
CF_CODE
CF_END
|
