include/uapi/linux/fib_rules.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/fib_rules.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/fib_rules.h
Extension
.h
Size
2242 bytes
Lines
97
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

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;
};

struct fib_rule_uid_range {
	__u32		start;
	__u32		end;
};

struct fib_rule_port_range {
	__u16		start;
	__u16		end;
};

enum {
	FRA_UNSPEC,
	FRA_DST,	/* destination address */
	FRA_SRC,	/* source address */
	FRA_IIFNAME,	/* interface name */
#define FRA_IFNAME	FRA_IIFNAME
	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_TUN_ID,
	FRA_SUPPRESS_IFGROUP,
	FRA_SUPPRESS_PREFIXLEN,
	FRA_TABLE,	/* Extended table id */
	FRA_FWMASK,	/* mask for netfilter mark */
	FRA_OIFNAME,
	FRA_PAD,
	FRA_L3MDEV,	/* iif or oif is l3mdev goto its table */
	FRA_UID_RANGE,	/* UID range */
	FRA_PROTOCOL,   /* Originator of the rule */
	FRA_IP_PROTO,	/* ip proto */
	FRA_SPORT_RANGE, /* sport */
	FRA_DPORT_RANGE, /* dport */
	FRA_DSCP,	/* dscp */
	FRA_FLOWLABEL,	/* flowlabel */
	FRA_FLOWLABEL_MASK,	/* flowlabel mask */
	FRA_SPORT_MASK,	/* sport mask */
	FRA_DPORT_MASK,	/* dport mask */
	FRA_DSCP_MASK,	/* dscp mask */
	__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

Annotation

Implementation Notes