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
|
/*
* Filters: utility functions
*
* Copyright 1998 Pavel Machek <pavel@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "nest/bird.h"
#include "conf/conf.h"
#include "filter/filter.h"
#define P(a,b) ((a<<8) | b)
struct f_inst *
f_new_inst(void)
{
struct f_inst * ret;
ret = cfg_alloc(sizeof(struct f_inst));
ret->code = ret->aux = 0;
ret->arg1 = ret->arg2 = ret->next = NULL;
ret->lineno = ifs->lino;
return ret;
}
struct f_inst *
f_new_dynamic_attr(int type, int f_type UNUSED, int code)
{
/* FIXME: Remove the f_type parameter? */
struct f_inst *f = f_new_inst();
f->aux = type;
f->a2.i = code;
return f;
}
/*
* Generate set_dynamic( operation( get_dynamic(), argument ) )
*/
struct f_inst *
f_generate_complex(int operation, int operation_aux, struct f_inst *dyn, struct f_inst *argument)
{
struct f_inst *set_dyn = f_new_inst(),
*oper = f_new_inst(),
*get_dyn = dyn;
*set_dyn = *get_dyn;
get_dyn->code = P('e','a');
oper->code = operation;
oper->aux = operation_aux;
oper->a1.p = get_dyn;
oper->a2.p = argument;
set_dyn->code = P('e','S');
set_dyn->a1.p = oper;
return set_dyn;
}
struct f_inst *
f_generate_roa_check(struct symbol *sym, struct f_inst *prefix, struct f_inst *asn)
{
struct f_inst_roa_check *ret = cfg_allocz(sizeof(struct f_inst_roa_check));
ret->i.code = P('R','C');
ret->i.lineno = ifs->lino;
ret->i.arg1 = prefix;
ret->i.arg2 = asn;
/* prefix == NULL <-> asn == NULL */
if ((sym->class != SYM_ROA) || ! sym->def)
cf_error("%s is not a ROA table", sym->name);
ret->rtc = sym->def;
return &ret->i;
}
char *
filter_name(struct filter *filter)
{
if (!filter)
return "ACCEPT";
else if (filter == FILTER_REJECT)
return "REJECT";
else if (!filter->name)
return "(unnamed)";
else
return filter->name;
}
|
