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/*
* BIRD Internet Routing Daemon -- Filters
*
* (c) 1999 Pavel Machek <pavel@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_FILT_H_
#define _BIRD_FILT_H_
#include "lib/resource.h"
struct f_inst { /* Instruction */
struct f_inst *next; /* Structure is 16 bytes, anyway */
int code;
void *arg1, *arg2;
};
struct f_val {
int type;
union {
int i;
} val;
};
struct filter {
char *name;
struct f_inst *root;
};
void filters_postconfig(void);
struct f_inst *f_new_inst(void);
int f_run(struct filter *filter, struct rte *rtein, struct rte **rteout);
#define F_ACCEPT 1
#define F_REJECT 2
#define F_MODIFY 3
#define F_ERROR 4
#define F_QUITBIRD 5
/* Type numbers must be in 0..0xff range */
#define T_MASK 0xff
/* Internal types */
#define T_VOID 0
#define T_RETURN 1
/* User visible types, which fit in int */
#define T_INT 0x10
#define T_BOOL 0x11
#define T_PAIR 0x12
#define T_ENUM 0x13
/* Bigger ones */
#define T_IP 0x20
#define T_PREFIX 0x21
#define T_STRING 0x22
#define T_SET 0x80
#endif
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