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
|
/*
* BIRD -- UNIX Kernel Syncer Configuration
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "sysdep/unix/krt.h"
CF_DEFINES
#define THIS_KRT ((struct krt_config *) this_proto)
#define THIS_KIF ((struct kif_config *) this_proto)
#define KIF_IFACE ((struct kif_iface_config *) this_ipatt)
static void
kif_set_preferred(ip_addr ip)
{
if (ipa_is_ip4(ip))
KIF_IFACE->pref_v4 = ip;
else if (!ipa_is_link_local(ip))
KIF_IFACE->pref_v6 = ip;
else
KIF_IFACE->pref_ll = ip;
}
CF_DECLS
CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, LEARN, DEVICE, ROUTES, GRACEFUL, RESTART, KRT_SOURCE, KRT_METRIC, MERGE, PATHS)
CF_KEYWORDS(INTERFACE, PREFERRED)
%type <i> kern_mp_limit
CF_GRAMMAR
/* Kernel syncer protocol */
proto: kern_proto '}' ;
kern_proto_start: proto_start KERNEL {
this_proto = krt_init_config($1);
}
;
kern_proto: kern_proto_start proto_name '{' ;
kern_proto: kern_proto kern_item ';' ;
kern_mp_limit:
/* empty */ { $$ = KRT_DEFAULT_ECMP_LIMIT; }
| LIMIT expr { $$ = $2; if (($2 <= 0) || ($2 > 255)) cf_error("Merge paths limit must be in range 1-255"); }
;
kern_item:
proto_item
| proto_channel { this_proto->net_type = $1->net_type; }
| PERSIST bool { THIS_KRT->persist = $2; }
| SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KRT->scan_time = $3 S_;
}
| LEARN bool {
THIS_KRT->learn = $2;
#ifndef KRT_ALLOW_LEARN
if ($2)
cf_error("Learning of kernel routes not supported on this platform");
#endif
}
| GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
| MERGE PATHS bool kern_mp_limit {
THIS_KRT->merge_paths = $3 ? $4 : 0;
#ifndef KRT_ALLOW_MERGE_PATHS
if ($3)
cf_error("Path merging not supported on this platform");
#endif
}
;
/* Kernel interface protocol */
proto: kif_proto '}' ;
kif_proto_start: proto_start DEVICE { this_proto = kif_init_config($1); }
;
kif_proto: kif_proto_start proto_name '{' ;
kif_proto: kif_proto kif_item ';' ;
kif_item:
proto_item
| INTERFACE kif_iface
| SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KIF->scan_time = $3 S_;
}
;
kif_iface_start:
{
this_ipatt = cfg_allocz(sizeof(struct kif_iface_config));
add_tail(&THIS_KIF->iface_list, NODE this_ipatt);
init_list(&this_ipatt->ipn_list);
}
kif_iface_item:
PREFERRED ipa { kif_set_preferred($2); }
;
kif_iface_opts:
/* empty */
| kif_iface_opts kif_iface_item ';'
;
kif_iface_opt_list:
/* empty */
| '{' kif_iface_opts '}'
;
kif_iface:
kif_iface_start iface_patt_list_nopx kif_iface_opt_list;
dynamic_attr: KRT_SOURCE { $$ = f_new_dynamic_attr(T_INT, EA_KRT_SOURCE); } ;
dynamic_attr: KRT_METRIC { $$ = f_new_dynamic_attr(T_INT, EA_KRT_METRIC); } ;
CF_CODE
CF_END
|
