89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/*
|
|
* BIRD Internet Routing Daemon -- Filter instructions
|
|
*
|
|
* (c) 1999 Pavel Machek <pavel@ucw.cz>
|
|
* (c) 2018--2019 Maria Matejka <mq@jmq.cz>
|
|
*
|
|
* Can be freely distributed and used under the terms of the GNU GPL.
|
|
*/
|
|
|
|
#ifndef _BIRD_F_INST_H_
|
|
#define _BIRD_F_INST_H_
|
|
|
|
#include "nest/bird.h"
|
|
#include "conf/conf.h"
|
|
#include "filter/filter.h"
|
|
#include "filter/data.h"
|
|
|
|
/* Include generated filter instruction declarations */
|
|
#include "filter/f-inst-decl.h"
|
|
|
|
#define f_new_inst(...) MACRO_CONCAT_AFTER(f_new_inst_, MACRO_FIRST(__VA_ARGS__))(__VA_ARGS__)
|
|
|
|
/* Convert the instruction back to the enum name */
|
|
const char *f_instruction_name(enum f_instruction_code fi);
|
|
|
|
struct f_inst *f_clear_local_vars(struct f_inst *decls);
|
|
|
|
/* Flags for instructions */
|
|
enum f_instruction_flags {
|
|
FIF_PRINTED = 1, /* FI_PRINT_AND_DIE: message put in buffer */
|
|
};
|
|
|
|
/* Filter structures for execution */
|
|
struct f_line;
|
|
|
|
/* The single instruction item */
|
|
struct f_line_item {
|
|
enum f_instruction_code fi_code; /* What to do */
|
|
enum f_instruction_flags flags; /* Flags, instruction-specific */
|
|
uint lineno; /* Where */
|
|
union {
|
|
struct {
|
|
const struct f_val *vp;
|
|
const struct symbol *sym;
|
|
};
|
|
struct f_val val;
|
|
const struct f_line *lines[2];
|
|
enum filter_return fret;
|
|
struct f_static_attr sa;
|
|
struct f_dynamic_attr da;
|
|
enum ec_subtype ecs;
|
|
const char *s;
|
|
const struct f_tree *tree;
|
|
const struct rtable_config *rtc;
|
|
uint count;
|
|
}; /* Additional instruction data */
|
|
};
|
|
|
|
/* Line of instructions to be unconditionally executed one after another */
|
|
struct f_line {
|
|
uint len; /* Line length */
|
|
struct f_line_item items[0]; /* The items themselves */
|
|
};
|
|
|
|
/* Convert the f_inst infix tree to the f_line structures */
|
|
struct f_line *f_postfixify_concat(const struct f_inst * const inst[], uint count);
|
|
static inline struct f_line *f_postfixify(const struct f_inst *root)
|
|
{ return f_postfixify_concat(&root, 1); }
|
|
|
|
struct filter *f_new_where(const struct f_inst *);
|
|
static inline struct f_dynamic_attr f_new_dynamic_attr(u8 type, u8 bit, enum f_type f_type, uint code) /* Type as core knows it, type as filters know it, and code of dynamic attribute */
|
|
{ return (struct f_dynamic_attr) { .type = type, .bit = bit, .f_type = f_type, .ea_code = code }; } /* f_type currently unused; will be handy for static type checking */
|
|
static inline struct f_static_attr f_new_static_attr(int f_type, int code, int readonly)
|
|
{ return (struct f_static_attr) { .f_type = f_type, .sa_code = code, .readonly = readonly }; }
|
|
struct f_inst *f_generate_complex(enum f_instruction_code fi_code, struct f_dynamic_attr da, struct f_inst *argument);
|
|
struct f_inst *f_generate_roa_check(struct rtable_config *table, struct f_inst *prefix, struct f_inst *asn);
|
|
|
|
/* Hook for call bt_assert() function in configuration */
|
|
extern void (*bt_assert_hook)(int result, const struct f_line_item *assert);
|
|
|
|
/* Bird Tests */
|
|
struct f_bt_test_suite {
|
|
node n; /* Node in config->tests */
|
|
struct f_line *fn; /* Root of function */
|
|
const char *fn_name; /* Name of test */
|
|
const char *dsc; /* Description */
|
|
};
|
|
|
|
#endif
|