fa0b2d1d21
The use of nop rules simplifies the usage of goto rules and adds more flexibility as they allow targets to remain while the actual content of the branches can change easly. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
#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 1
|
|
#define FIB_RULE_INVERT 2
|
|
#define FIB_RULE_UNRESOLVED 4
|
|
#define FIB_RULE_DEV_DETACHED 8
|
|
|
|
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
|