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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef __LINUX_FIB_RULES_H
      3 #define __LINUX_FIB_RULES_H
      4 
      5 #include <linux/types.h>
      6 #include <linux/rtnetlink.h>
      7 
      8 /* rule is permanent, and cannot be deleted */
      9 #define FIB_RULE_PERMANENT	0x00000001
     10 #define FIB_RULE_INVERT		0x00000002
     11 #define FIB_RULE_UNRESOLVED	0x00000004
     12 #define FIB_RULE_IIF_DETACHED	0x00000008
     13 #define FIB_RULE_DEV_DETACHED	FIB_RULE_IIF_DETACHED
     14 #define FIB_RULE_OIF_DETACHED	0x00000010
     15 
     16 /* try to find source address in routing lookups */
     17 #define FIB_RULE_FIND_SADDR	0x00010000
     18 
     19 struct fib_rule_hdr {
     20 	__u8		family;
     21 	__u8		dst_len;
     22 	__u8		src_len;
     23 	__u8		tos;
     24 
     25 	__u8		table;
     26 	__u8		res1;	/* reserved */
     27 	__u8		res2;	/* reserved */
     28 	__u8		action;
     29 
     30 	__u32		flags;
     31 };
     32 
     33 struct fib_rule_uid_range {
     34 	__u32		start;
     35 	__u32		end;
     36 };
     37 
     38 enum {
     39 	FRA_UNSPEC,
     40 	FRA_DST,	/* destination address */
     41 	FRA_SRC,	/* source address */
     42 	FRA_IIFNAME,	/* interface name */
     43 #define FRA_IFNAME	FRA_IIFNAME
     44 	FRA_GOTO,	/* target to jump to (FR_ACT_GOTO) */
     45 	FRA_UNUSED2,
     46 	FRA_PRIORITY,	/* priority/preference */
     47 	FRA_UNUSED3,
     48 	FRA_UNUSED4,
     49 	FRA_UNUSED5,
     50 	FRA_FWMARK,	/* mark */
     51 	FRA_FLOW,	/* flow/class id */
     52 	FRA_TUN_ID,
     53 	FRA_SUPPRESS_IFGROUP,
     54 	FRA_SUPPRESS_PREFIXLEN,
     55 	FRA_TABLE,	/* Extended table id */
     56 	FRA_FWMASK,	/* mask for netfilter mark */
     57 	FRA_OIFNAME,
     58 	FRA_PAD,
     59 	FRA_L3MDEV,	/* iif or oif is l3mdev goto its table */
     60 	FRA_UID_RANGE,	/* UID range */
     61 	__FRA_MAX
     62 };
     63 
     64 #define FRA_MAX (__FRA_MAX - 1)
     65 
     66 enum {
     67 	FR_ACT_UNSPEC,
     68 	FR_ACT_TO_TBL,		/* Pass to fixed table */
     69 	FR_ACT_GOTO,		/* Jump to another rule */
     70 	FR_ACT_NOP,		/* No operation */
     71 	FR_ACT_RES3,
     72 	FR_ACT_RES4,
     73 	FR_ACT_BLACKHOLE,	/* Drop without notification */
     74 	FR_ACT_UNREACHABLE,	/* Drop with ENETUNREACH */
     75 	FR_ACT_PROHIBIT,	/* Drop with EACCES */
     76 	__FR_ACT_MAX,
     77 };
     78 
     79 #define FR_ACT_MAX (__FR_ACT_MAX - 1)
     80 
     81 #endif
     82