expr.c File Reference

#include "internal.h"
#include "expr_ops.h"
#include <time.h>
#include <endian.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <libmnl/libmnl.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nf_tables.h>
#include <libnftnl/expr.h>
#include "linux_list.h"

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Functions
struct nft_rule_expr *	nft_rule_expr_alloc (const char *name)
	EXPORT_SYMBOL (nft_rule_expr_alloc)
void	nft_rule_expr_free (struct nft_rule_expr *expr)
	EXPORT_SYMBOL (nft_rule_expr_free)
bool	nft_rule_expr_is_set (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_is_set)
void	nft_rule_expr_set (struct nft_rule_expr *expr, uint16_t type, const void *data, uint32_t data_len)
	EXPORT_SYMBOL (nft_rule_expr_set)
void	nft_rule_expr_set_u8 (struct nft_rule_expr *expr, uint16_t type, uint8_t data)
	EXPORT_SYMBOL (nft_rule_expr_set_u8)
void	nft_rule_expr_set_u16 (struct nft_rule_expr *expr, uint16_t type, uint16_t data)
	EXPORT_SYMBOL (nft_rule_expr_set_u16)
void	nft_rule_expr_set_u32 (struct nft_rule_expr *expr, uint16_t type, uint32_t data)
	EXPORT_SYMBOL (nft_rule_expr_set_u32)
void	nft_rule_expr_set_u64 (struct nft_rule_expr *expr, uint16_t type, uint64_t data)
	EXPORT_SYMBOL (nft_rule_expr_set_u64)
void	nft_rule_expr_set_str (struct nft_rule_expr *expr, uint16_t type, const char *str)
	EXPORT_SYMBOL (nft_rule_expr_set_str)
const void *	nft_rule_expr_get (const struct nft_rule_expr *expr, uint16_t type, uint32_t *data_len)
	EXPORT_SYMBOL (nft_rule_expr_get)
uint8_t	nft_rule_expr_get_u8 (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_get_u8)
uint16_t	nft_rule_expr_get_u16 (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_get_u16)
uint32_t	nft_rule_expr_get_u32 (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_get_u32)
uint64_t	nft_rule_expr_get_u64 (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_get_u64)
const char *	nft_rule_expr_get_str (const struct nft_rule_expr *expr, uint16_t type)
	EXPORT_SYMBOL (nft_rule_expr_get_str)
void	nft_rule_expr_build_payload (struct nlmsghdr *nlh, struct nft_rule_expr *expr)
	EXPORT_SYMBOL (nft_rule_expr_build_payload)
int	nft_rule_expr_snprintf (char *buf, size_t size, struct nft_rule_expr *expr, uint32_t type, uint32_t flags)
	EXPORT_SYMBOL (nft_rule_expr_snprintf)

Function Documentation

EXPORT_SYMBOL

(

nft_rule_expr_alloc

)

EXPORT_SYMBOL

(

nft_rule_expr_free

)

EXPORT_SYMBOL

(

nft_rule_expr_is_set

)

EXPORT_SYMBOL

(

nft_rule_expr_set

)

EXPORT_SYMBOL

(

nft_rule_expr_set_u8

)

EXPORT_SYMBOL

(

nft_rule_expr_set_u16

)

EXPORT_SYMBOL

(

nft_rule_expr_set_u32

)

EXPORT_SYMBOL

(

nft_rule_expr_set_u64

)

EXPORT_SYMBOL

(

nft_rule_expr_set_str

)

EXPORT_SYMBOL

(

nft_rule_expr_get

)

EXPORT_SYMBOL

(

nft_rule_expr_get_u8

)

EXPORT_SYMBOL

(

nft_rule_expr_get_u16

)

EXPORT_SYMBOL

(

nft_rule_expr_get_u32

)

EXPORT_SYMBOL

(

nft_rule_expr_get_u64

)

EXPORT_SYMBOL

(

nft_rule_expr_get_str

)

EXPORT_SYMBOL

(

nft_rule_expr_build_payload

)

EXPORT_SYMBOL

(

nft_rule_expr_snprintf

)

struct nft_rule_expr* nft_rule_expr_alloc

(

const char *

name

)

References expr_ops::alloc_len, nft_rule_expr::flags, nft_expr_ops_lookup(), NFT_RULE_EXPR_ATTR_NAME, NULL, and nft_rule_expr::ops.

Referenced by add_bitwise_u16(), add_cmp_ptr(), add_counters(), add_jumpto(), add_match(), add_meta(), add_payload(), add_target(), add_verdict(), and alloc_nft_expr().

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void nft_rule_expr_build_payload	(	struct nlmsghdr *	nlh,
		struct nft_rule_expr *	expr
	)

References expr_ops::build, mnl_attr_nest_end(), mnl_attr_nest_start(), mnl_attr_put_strz(), expr_ops::name, NFTA_EXPR_DATA, NFTA_EXPR_NAME, NFTA_LIST_ELEM, and nft_rule_expr::ops.

Referenced by nft_rule_nlmsg_build_payload().

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void nft_rule_expr_free

(

struct nft_rule_expr *

expr

)

References expr_ops::free, nft_rule_expr::ops, and xfree.

Referenced by nft_rule_free().

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const void* nft_rule_expr_get	(	const struct nft_rule_expr *	expr,
		uint16_t	type,
		uint32_t *	data_len
	)

References nft_rule_expr::flags, expr_ops::get, expr_ops::name, NFT_RULE_EXPR_ATTR_NAME, NULL, and nft_rule_expr::ops.

Referenced by get_cmp_data(), nft_parse_bitwise(), nft_parse_target(), nft_rule_expr_get_str(), nft_rule_expr_get_u16(), nft_rule_expr_get_u32(), nft_rule_expr_get_u64(), nft_rule_expr_get_u8(), and parse_meta().

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const char* nft_rule_expr_get_str	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References nft_rule_expr_get().

Referenced by nft_parse_immediate(), nft_parse_target(), nft_rule_to_arptables_command_state(), nft_rule_to_iptables_command_state(), and nft_set_lookup_id().

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uint16_t nft_rule_expr_get_u16	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References data, nft_rule_expr_get(), and NULL.

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uint32_t nft_rule_expr_get_u32	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References data, nft_rule_expr_get(), and NULL.

Referenced by get_cmp_data(), nft_parse_bitwise(), nft_parse_cmp(), nft_parse_immediate(), nft_parse_meta(), nft_parse_payload(), nft_parse_target(), and parse_meta().

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uint64_t nft_rule_expr_get_u64	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References data, nft_rule_expr_get(), and NULL.

Referenced by nft_parse_counter().

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uint8_t nft_rule_expr_get_u8	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References data, nft_rule_expr_get(), and NULL.

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bool nft_rule_expr_is_set	(	const struct nft_rule_expr *	expr,
		uint16_t	type
	)

References nft_rule_expr::flags, and type.

void nft_rule_expr_set	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		const void *	data,
		uint32_t	data_len
	)

References nft_rule_expr::flags, NFT_RULE_EXPR_ATTR_NAME, nft_rule_expr::ops, expr_ops::set, and type.

Referenced by add_bitwise_u16(), add_cmp_ptr(), nft_rule_expr_set_str(), nft_rule_expr_set_u16(), nft_rule_expr_set_u32(), nft_rule_expr_set_u64(), and nft_rule_expr_set_u8().

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void nft_rule_expr_set_str	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		const char *	str
	)

References nft_rule_expr_set().

Referenced by add_jumpto().

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void nft_rule_expr_set_u16	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		uint16_t	data
	)

References nft_rule_expr_set().

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void nft_rule_expr_set_u32	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		uint32_t	data
	)

References nft_rule_expr_set().

Referenced by add_bitwise_u16(), add_cmp_ptr(), add_jumpto(), add_meta(), add_payload(), and add_verdict().

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void nft_rule_expr_set_u64	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		uint64_t	data
	)

References nft_rule_expr_set().

Referenced by add_counters().

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void nft_rule_expr_set_u8	(	struct nft_rule_expr *	expr,
		uint16_t	type,
		uint8_t	data
	)

References nft_rule_expr_set().

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int nft_rule_expr_snprintf	(	char *	buf,
		size_t	size,
		struct nft_rule_expr *	expr,
		uint32_t	type,
		uint32_t	flags
	)

References len, nft_rule_expr::ops, size, expr_ops::snprintf, and SNPRINTF_BUFFER_SIZE.

Referenced by netlink_dump_expr().

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