root/include/linux/fib_rules.h

INCLUDED FROM

#ifndef __LINUX_FIB_RULES_H
#define __LINUX_FIB_RULES_H

#include <linux/types.h>
#include <linux/rtnetlink.h>

/* rule is permanent, and cannot be deleted */
#define FIB_RULE_PERMANENT      0x00000001
#define FIB_RULE_INVERT         0x00000002
#define FIB_RULE_UNRESOLVED     0x00000004
#define FIB_RULE_DEV_DETACHED   0x00000008

/* try to find source address in routing lookups */
#define FIB_RULE_FIND_SADDR     0x00010000

struct fib_rule_hdr
{
        __u8            family;
        __u8            dst_len;
        __u8            src_len;
        __u8            tos;

        __u8            table;
        __u8            res1;   /* reserved */
        __u8            res2;   /* reserved */
        __u8            action;

        __u32           flags;
};

enum
{
        FRA_UNSPEC,
        FRA_DST,        /* destination address */
        FRA_SRC,        /* source address */
        FRA_IFNAME,     /* interface name */
        FRA_GOTO,       /* target to jump to (FR_ACT_GOTO) */
        FRA_UNUSED2,
        FRA_PRIORITY,   /* priority/preference */
        FRA_UNUSED3,
        FRA_UNUSED4,
        FRA_UNUSED5,
        FRA_FWMARK,     /* mark */
        FRA_FLOW,       /* flow/class id */
        FRA_UNUSED6,
        FRA_UNUSED7,
        FRA_UNUSED8,
        FRA_TABLE,      /* Extended table id */
        FRA_FWMASK,     /* mask for netfilter mark */
        __FRA_MAX
};

#define FRA_MAX (__FRA_MAX - 1)

enum
{
        FR_ACT_UNSPEC,
        FR_ACT_TO_TBL,          /* Pass to fixed table */
        FR_ACT_GOTO,            /* Jump to another rule */
        FR_ACT_NOP,             /* No operation */
        FR_ACT_RES3,
        FR_ACT_RES4,
        FR_ACT_BLACKHOLE,       /* Drop without notification */
        FR_ACT_UNREACHABLE,     /* Drop with ENETUNREACH */
        FR_ACT_PROHIBIT,        /* Drop with EACCES */
        __FR_ACT_MAX,
};

#define FR_ACT_MAX (__FR_ACT_MAX - 1)

#endif