chain.c File Reference

#include "internal.h"
#include <time.h>
#include <endian.h>
#include <stdint.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <netinet/in.h>
#include <errno.h>
#include <inttypes.h>
#include <libmnl/libmnl.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nf_tables.h>
#include <linux/netfilter.h>
#include <linux/netfilter_arp.h>
#include <libnftnl/chain.h>
#include <buffer.h>

Include dependency graph for chain.c:

Data Structures
struct	nft_chain
struct	nft_chain_list
struct	nft_chain_list_iter

Functions
struct nft_chain *	nft_chain_alloc (void)
	EXPORT_SYMBOL (nft_chain_alloc)
void	nft_chain_free (struct nft_chain *c)
	EXPORT_SYMBOL (nft_chain_free)
bool	nft_chain_attr_is_set (const struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_is_set)
void	nft_chain_attr_unset (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_unset)
void	nft_chain_attr_set_data (struct nft_chain *c, uint16_t attr, const void *data, uint32_t data_len)
	EXPORT_SYMBOL (nft_chain_attr_set_data)
void	nft_chain_attr_set (struct nft_chain *c, uint16_t attr, const void *data)
	EXPORT_SYMBOL (nft_chain_attr_set)
void	nft_chain_attr_set_u32 (struct nft_chain *c, uint16_t attr, uint32_t data)
	EXPORT_SYMBOL (nft_chain_attr_set_u32)
void	nft_chain_attr_set_s32 (struct nft_chain *c, uint16_t attr, int32_t data)
	EXPORT_SYMBOL (nft_chain_attr_set_s32)
void	nft_chain_attr_set_u64 (struct nft_chain *c, uint16_t attr, uint64_t data)
	EXPORT_SYMBOL (nft_chain_attr_set_u64)
void	nft_chain_attr_set_u8 (struct nft_chain *c, uint16_t attr, uint8_t data)
	EXPORT_SYMBOL (nft_chain_attr_set_u8)
void	nft_chain_attr_set_str (struct nft_chain *c, uint16_t attr, const char *str)
	EXPORT_SYMBOL (nft_chain_attr_set_str)
const void *	nft_chain_attr_get_data (struct nft_chain *c, uint16_t attr, uint32_t *data_len)
	EXPORT_SYMBOL (nft_chain_attr_get_data)
const void *	nft_chain_attr_get (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get)
const char *	nft_chain_attr_get_str (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get_str)
uint32_t	nft_chain_attr_get_u32 (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get_u32)
int32_t	nft_chain_attr_get_s32 (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get_s32)
uint64_t	nft_chain_attr_get_u64 (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get_u64)
uint8_t	nft_chain_attr_get_u8 (struct nft_chain *c, uint16_t attr)
	EXPORT_SYMBOL (nft_chain_attr_get_u8)
void	nft_chain_nlmsg_build_payload (struct nlmsghdr *nlh, const struct nft_chain *c)
	EXPORT_SYMBOL (nft_chain_nlmsg_build_payload)
int	nft_chain_nlmsg_parse (const struct nlmsghdr *nlh, struct nft_chain *c)
	EXPORT_SYMBOL (nft_chain_nlmsg_parse)
int	nft_chain_parse (struct nft_chain *c, enum nft_parse_type type, const char *data, struct nft_parse_err *err)
	EXPORT_SYMBOL (nft_chain_parse)
int	nft_chain_parse_file (struct nft_chain *c, enum nft_parse_type type, FILE *fp, struct nft_parse_err *err)
	EXPORT_SYMBOL (nft_chain_parse_file)
int	nft_chain_snprintf (char *buf, size_t size, struct nft_chain *c, uint32_t type, uint32_t flags)
	EXPORT_SYMBOL (nft_chain_snprintf)
int	nft_chain_fprintf (FILE *fp, struct nft_chain *c, uint32_t type, uint32_t flags)
	EXPORT_SYMBOL (nft_chain_fprintf)
struct nft_chain_list *	nft_chain_list_alloc (void)
	EXPORT_SYMBOL (nft_chain_list_alloc)
void	nft_chain_list_free (struct nft_chain_list *list)
	EXPORT_SYMBOL (nft_chain_list_free)
int	nft_chain_list_is_empty (struct nft_chain_list *list)
	EXPORT_SYMBOL (nft_chain_list_is_empty)
void	nft_chain_list_add (struct nft_chain *r, struct nft_chain_list *list)
	EXPORT_SYMBOL (nft_chain_list_add)
void	nft_chain_list_add_tail (struct nft_chain *r, struct nft_chain_list *list)
	EXPORT_SYMBOL (nft_chain_list_add_tail)
void	nft_chain_list_del (struct nft_chain *r)
	EXPORT_SYMBOL (nft_chain_list_del)
int	nft_chain_list_foreach (struct nft_chain_list *chain_list, int(*cb)(struct nft_chain *r, void *data), void *data)
	EXPORT_SYMBOL (nft_chain_list_foreach)
struct nft_chain_list_iter *	nft_chain_list_iter_create (struct nft_chain_list *l)
	EXPORT_SYMBOL (nft_chain_list_iter_create)
struct nft_chain *	nft_chain_list_iter_next (struct nft_chain_list_iter *iter)
	EXPORT_SYMBOL (nft_chain_list_iter_next)
void	nft_chain_list_iter_destroy (struct nft_chain_list_iter *iter)
	EXPORT_SYMBOL (nft_chain_list_iter_destroy)

Function Documentation

EXPORT_SYMBOL

(

nft_chain_alloc

)

EXPORT_SYMBOL

(

nft_chain_free

)

EXPORT_SYMBOL

(

nft_chain_attr_is_set

)

EXPORT_SYMBOL

(

nft_chain_attr_unset

)

EXPORT_SYMBOL

(

nft_chain_attr_set_data

)

EXPORT_SYMBOL

(

nft_chain_attr_set

)

EXPORT_SYMBOL

(

nft_chain_attr_set_u32

)

EXPORT_SYMBOL

(

nft_chain_attr_set_s32

)

EXPORT_SYMBOL

(

nft_chain_attr_set_u64

)

EXPORT_SYMBOL

(

nft_chain_attr_set_u8

)

EXPORT_SYMBOL

(

nft_chain_attr_set_str

)

EXPORT_SYMBOL

(

nft_chain_attr_get_data

)

EXPORT_SYMBOL

(

nft_chain_attr_get

)

EXPORT_SYMBOL

(

nft_chain_attr_get_str

)

EXPORT_SYMBOL

(

nft_chain_attr_get_u32

)

EXPORT_SYMBOL

(

nft_chain_attr_get_s32

)

EXPORT_SYMBOL

(

nft_chain_attr_get_u64

)

EXPORT_SYMBOL

(

nft_chain_attr_get_u8

)

EXPORT_SYMBOL

(

nft_chain_nlmsg_build_payload

)

EXPORT_SYMBOL

(

nft_chain_nlmsg_parse

)

EXPORT_SYMBOL

(

nft_chain_parse

)

EXPORT_SYMBOL

(

nft_chain_parse_file

)

EXPORT_SYMBOL

(

nft_chain_snprintf

)

EXPORT_SYMBOL

(

nft_chain_fprintf

)

EXPORT_SYMBOL

(

nft_chain_list_alloc

)

EXPORT_SYMBOL

(

nft_chain_list_free

)

EXPORT_SYMBOL

(

nft_chain_list_is_empty

)

EXPORT_SYMBOL

(

nft_chain_list_add

)

EXPORT_SYMBOL

(

nft_chain_list_add_tail

)

EXPORT_SYMBOL

(

nft_chain_list_del

)

EXPORT_SYMBOL

(

nft_chain_list_foreach

)

EXPORT_SYMBOL

(

nft_chain_list_iter_create

)

EXPORT_SYMBOL

(

nft_chain_list_iter_next

)

EXPORT_SYMBOL

(

nft_chain_list_iter_destroy

)

struct nft_chain* nft_chain_alloc

(

void

)

Referenced by alloc_nft_chain(), nft_chain_user_add(), and nft_chain_user_rename().

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const void* nft_chain_attr_get	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_chain_attr_get_data().

Referenced by nft_chain_attr_get_str(), nft_chain_zero_counters(), nft_rule_list(), and nft_xtables_config_load().

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const void* nft_chain_attr_get_data	(	struct nft_chain *	c,
		uint16_t	attr,
		uint32_t *	data_len
	)

References nft_chain::bytes, nft_chain::family, nft_chain::flags, nft_chain::handle, nft_chain::hooknum, nft_chain::name, NFT_CHAIN_ATTR_BYTES, NFT_CHAIN_ATTR_FAMILY, NFT_CHAIN_ATTR_HANDLE, NFT_CHAIN_ATTR_HOOKNUM, NFT_CHAIN_ATTR_NAME, NFT_CHAIN_ATTR_PACKETS, NFT_CHAIN_ATTR_POLICY, NFT_CHAIN_ATTR_PRIO, NFT_CHAIN_ATTR_TABLE, NFT_CHAIN_ATTR_TYPE, NFT_CHAIN_ATTR_USE, NULL, nft_chain::packets, nft_chain::policy, nft_chain::prio, nft_chain::table, nft_chain::type, and nft_chain::use.

Referenced by nft_chain_attr_get(), nft_chain_attr_get_s32(), nft_chain_attr_get_u32(), nft_chain_attr_get_u64(), and nft_chain_attr_get_u8().

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int32_t nft_chain_attr_get_s32	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_assert, and nft_chain_attr_get_data().

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const char* nft_chain_attr_get_str	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_chain_attr_get().

Referenced by nft_chain_list_find(), nft_chain_save(), nft_chain_user_del(), nft_rule_flush(), nft_rule_list(), nft_rule_list_save(), and nft_table_purge_chains().

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uint32_t nft_chain_attr_get_u32	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_assert, and nft_chain_attr_get_data().

Referenced by mnl_nft_chain_add(), mnl_nft_chain_batch_add(), mnl_nft_chain_batch_del(), mnl_nft_chain_delete(), mnl_nft_chain_get(), nft_rule_list(), and nft_xtables_config_load().

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uint64_t nft_chain_attr_get_u64	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_assert, and nft_chain_attr_get_data().

Referenced by nft_chain_user_rename(), and nft_rule_list().

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uint8_t nft_chain_attr_get_u8	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_assert, and nft_chain_attr_get_data().

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bool nft_chain_attr_is_set	(	const struct nft_chain *	c,
		uint16_t	attr
	)

References nft_chain::flags.

void nft_chain_attr_set	(	struct nft_chain *	c,
		uint16_t	attr,
		const void *	data
	)

References nft_chain_attr_set_data().

Referenced by nft_chain_user_add(), and nft_chain_user_rename().

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void nft_chain_attr_set_data	(	struct nft_chain *	c,
		uint16_t	attr,
		const void *	data,
		uint32_t	data_len
	)

References nft_chain::bytes, nft_chain::family, nft_chain::flags, nft_chain::handle, nft_chain::hooknum, nft_chain::name, nft_assert_validate, NFT_CHAIN_ATTR_BYTES, NFT_CHAIN_ATTR_FAMILY, NFT_CHAIN_ATTR_HANDLE, NFT_CHAIN_ATTR_HOOKNUM, NFT_CHAIN_ATTR_MAX, NFT_CHAIN_ATTR_NAME, NFT_CHAIN_ATTR_PACKETS, NFT_CHAIN_ATTR_POLICY, NFT_CHAIN_ATTR_PRIO, NFT_CHAIN_ATTR_TABLE, NFT_CHAIN_ATTR_TYPE, NFT_CHAIN_ATTR_USE, NFT_CHAIN_MAXNAMELEN, nft_chain::packets, nft_chain::policy, nft_chain::prio, nft_chain::table, nft_chain::type, nft_chain::use, and xfree.

Referenced by nft_chain_attr_set(), nft_chain_attr_set_s32(), nft_chain_attr_set_str(), nft_chain_attr_set_u32(), nft_chain_attr_set_u64(), and nft_chain_attr_set_u8().

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void nft_chain_attr_set_s32	(	struct nft_chain *	c,
		uint16_t	attr,
		int32_t	data
	)

References nft_chain_attr_set_data().

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void nft_chain_attr_set_str	(	struct nft_chain *	c,
		uint16_t	attr,
		const char *	str
	)

References nft_chain_attr_set_data().

Referenced by alloc_nft_chain().

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void nft_chain_attr_set_u32	(	struct nft_chain *	c,
		uint16_t	attr,
		uint32_t	data
	)

References nft_chain_attr_set_data().

Referenced by alloc_nft_chain().

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void nft_chain_attr_set_u64	(	struct nft_chain *	c,
		uint16_t	attr,
		uint64_t	data
	)

References nft_chain_attr_set_data().

Referenced by alloc_nft_chain(), nft_chain_user_rename(), and nft_chain_zero_counters().

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void nft_chain_attr_set_u8	(	struct nft_chain *	c,
		uint16_t	attr,
		uint8_t	data
	)

References nft_chain_attr_set_data().

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void nft_chain_attr_unset	(	struct nft_chain *	c,
		uint16_t	attr
	)

References nft_chain::flags, NFT_CHAIN_ATTR_BYTES, NFT_CHAIN_ATTR_FAMILY, NFT_CHAIN_ATTR_HANDLE, NFT_CHAIN_ATTR_HOOKNUM, NFT_CHAIN_ATTR_NAME, NFT_CHAIN_ATTR_PACKETS, NFT_CHAIN_ATTR_POLICY, NFT_CHAIN_ATTR_PRIO, NFT_CHAIN_ATTR_TABLE, NFT_CHAIN_ATTR_TYPE, NFT_CHAIN_ATTR_USE, NULL, nft_chain::table, nft_chain::type, and xfree.

Referenced by nft_chain_zero_counters().

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int nft_chain_fprintf	(	FILE *	fp,
		struct nft_chain *	c,
		uint32_t	type,
		uint32_t	flags
	)

References nft_fprintf().

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void nft_chain_free

(

struct nft_chain *

c

)

References NULL, nft_chain::table, nft_chain::type, and xfree.

Referenced by netlink_get_chain(), nft_chain_add(), nft_chain_list_free(), nft_chain_user_add(), and nft_chain_user_rename().

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void nft_chain_list_add	(	struct nft_chain *	r,
		struct nft_chain_list *	list
	)

References nft_chain::head, and nft_chain_list::list.

void nft_chain_list_add_tail	(	struct nft_chain *	r,
		struct nft_chain_list *	list
	)

References nft_chain::head, and nft_chain_list::list.

struct nft_chain_list* nft_chain_list_alloc

(

void

)

References INIT_LIST_HEAD, nft_chain_list::list, and NULL.

Referenced by mnl_chain_dump(), mnl_nft_chain_dump(), and nft_xtables_config_load().

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void nft_chain_list_del

(

struct nft_chain *

r

)

References nft_chain::head.

int nft_chain_list_foreach	(	struct nft_chain_list *	chain_list,
		int(*)(struct nft_chain *r, void *data)	cb,
		void *	data
	)

References nft_chain::head, nft_chain_list::list, and list_for_each_entry_safe.

void nft_chain_list_free

(

struct nft_chain_list *

list

)

References nft_chain::head, nft_chain_list::list, list_for_each_entry_safe, nft_chain_free(), and xfree.

Referenced by mnl_chain_dump(), mnl_nft_chain_dump(), netlink_list_chains(), nft_chain_save(), nft_chain_user_del(), nft_chain_zero_counters(), nft_rule_flush(), nft_rule_list(), nft_rule_list_save(), nft_ruleset_attr_unset(), nft_ruleset_free(), and nft_xtables_config_load().

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int nft_chain_list_is_empty

(

struct nft_chain_list *

list

)

References nft_chain_list::list.

Referenced by nft_ruleset_fprintf().

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struct nft_chain_list_iter* nft_chain_list_iter_create

(

struct nft_chain_list *

l

)

References nft_chain_list_iter::cur, nft_chain_list::list, nft_chain_list_iter::list, list_entry, list_head::next, and NULL.

Referenced by nft_chain_list_find(), nft_chain_save(), nft_chain_user_del(), nft_chain_zero_counters(), nft_rule_flush(), nft_rule_list(), nft_rule_list_save(), nft_table_purge_chains(), and nft_xtables_config_load().

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void nft_chain_list_iter_destroy

(

struct nft_chain_list_iter *

iter

)

References xfree.

Referenced by nft_chain_list_find(), nft_chain_save(), nft_chain_user_del(), nft_chain_zero_counters(), nft_rule_flush(), nft_rule_list(), nft_rule_list_save(), nft_table_purge_chains(), and nft_xtables_config_load().

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struct nft_chain* nft_chain_list_iter_next

(

struct nft_chain_list_iter *

iter

)

References nft_chain_list_iter::cur, nft_chain::head, nft_chain_list::list, nft_chain_list_iter::list, list_entry, list_head::next, and NULL.

Referenced by nft_chain_list_find(), nft_chain_save(), nft_chain_user_del(), nft_chain_zero_counters(), nft_rule_flush(), nft_rule_list(), nft_rule_list_save(), nft_table_purge_chains(), and nft_xtables_config_load().

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void nft_chain_nlmsg_build_payload	(	struct nlmsghdr *	nlh,
		const struct nft_chain *	c
	)

References be64toh, nft_chain::bytes, nft_chain::flags, nft_chain::handle, nft_chain::hooknum, mnl_attr_nest_end(), mnl_attr_nest_start(), mnl_attr_put_strz(), mnl_attr_put_u32(), mnl_attr_put_u64(), nft_chain::name, NFT_CHAIN_ATTR_BYTES, NFT_CHAIN_ATTR_HANDLE, NFT_CHAIN_ATTR_HOOKNUM, NFT_CHAIN_ATTR_NAME, NFT_CHAIN_ATTR_PACKETS, NFT_CHAIN_ATTR_POLICY, NFT_CHAIN_ATTR_PRIO, NFT_CHAIN_ATTR_TABLE, NFT_CHAIN_ATTR_TYPE, NFT_CHAIN_ATTR_USE, NFTA_CHAIN_COUNTERS, NFTA_CHAIN_HANDLE, NFTA_CHAIN_HOOK, NFTA_CHAIN_NAME, NFTA_CHAIN_POLICY, NFTA_CHAIN_TABLE, NFTA_CHAIN_TYPE, NFTA_CHAIN_USE, NFTA_COUNTER_BYTES, NFTA_COUNTER_PACKETS, NFTA_HOOK_HOOKNUM, NFTA_HOOK_PRIORITY, nft_chain::packets, nft_chain::policy, nft_chain::prio, nft_chain::table, nft_chain::type, and nft_chain::use.

Referenced by mnl_nft_chain_add(), mnl_nft_chain_batch_add(), mnl_nft_chain_batch_del(), mnl_nft_chain_delete(), mnl_nft_chain_get(), nft_chain_add(), nft_chain_user_add(), nft_chain_user_rename(), and nft_chain_zero_counters().

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int nft_chain_nlmsg_parse	(	const struct nlmsghdr *	nlh,
		struct nft_chain *	c
	)

References be64toh, nft_chain::family, nft_chain::flags, nft_chain::handle, mnl_attr_get_str(), mnl_attr_get_u32(), mnl_attr_get_u64(), mnl_attr_parse(), mnl_nlmsg_get_payload(), nft_chain::name, nfgenmsg::nfgen_family, NFT_CHAIN_ATTR_FAMILY, NFT_CHAIN_ATTR_HANDLE, NFT_CHAIN_ATTR_NAME, NFT_CHAIN_ATTR_POLICY, NFT_CHAIN_ATTR_TABLE, NFT_CHAIN_ATTR_TYPE, NFT_CHAIN_ATTR_USE, NFT_CHAIN_MAXNAMELEN, NFTA_CHAIN_COUNTERS, NFTA_CHAIN_HANDLE, NFTA_CHAIN_HOOK, NFTA_CHAIN_MAX, NFTA_CHAIN_NAME, NFTA_CHAIN_POLICY, NFTA_CHAIN_TABLE, NFTA_CHAIN_TYPE, NFTA_CHAIN_USE, nft_chain::policy, nft_chain::table, nft_chain::type, and nft_chain::use.

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int nft_chain_parse	(	struct nft_chain *	c,
		enum nft_parse_type	type,
		const char *	data,
		struct nft_parse_err *	err
	)

References NFT_PARSE_BUFFER.

int nft_chain_parse_file	(	struct nft_chain *	c,
		enum nft_parse_type	type,
		FILE *	fp,
		struct nft_parse_err *	err
	)

References NFT_PARSE_FILE.

int nft_chain_snprintf	(	char *	buf,
		size_t	size,
		struct nft_chain *	c,
		uint32_t	type,
		uint32_t	flags
	)

References nft_event_footer_snprintf(), nft_event_header_snprintf(), NFT_OUTPUT_DEFAULT, NFT_OUTPUT_JSON, NFT_OUTPUT_XML, size, and SNPRINTF_BUFFER_SIZE.

Referenced by netlink_dump_chain(), and nft_chain_add().

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