helper.h File Reference

#include <stdint.h>
#include "linux_list.h"
#include "myct.h"
#include <libnetfilter_conntrack/libnetfilter_conntrack.h>

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Data Structures
struct	ctd_helper_policy
struct	ctd_helper
struct	ctd_helper_instance

Macros
#define	CTD_HELPER_NAME_LEN   16
#define	CTD_HELPER_POLICY_MAX   4
#define	min_t(type, x, y)
#define	max_t(type, x, y)
#define	ARRAY_SIZE   MNL_ARRAY_SIZE
#define	CTINFO2DIR(ctinfo)   ((ctinfo) >= IP_CT_IS_REPLY ? IP_CT_DIR_REPLY : IP_CT_DIR_ORIGINAL)
#define	pr_debug(fmt, arg...)   ({ if (0) printf(fmt, ##arg); 0; })

Enumerations
enum	ip_conntrack_dir {   IP_CT_DIR_ORIGINAL,   IP_CT_DIR_REPLY,   IP_CT_DIR_MAX,   IP_CT_DIR_ORIGINAL,   IP_CT_DIR_REPLY,   IP_CT_DIR_MAX,   IP_CT_DIR_ORIGINAL,   IP_CT_DIR_REPLY,   IP_CT_DIR_MAX }
enum	ip_conntrack_info {   IP_CT_ESTABLISHED,   IP_CT_RELATED,   IP_CT_NEW,   IP_CT_IS_REPLY,   IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY,   IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY,   IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY,   IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1,   IP_CT_ESTABLISHED,   IP_CT_RELATED,   IP_CT_NEW,   IP_CT_IS_REPLY,   IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY,   IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY,   IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY,   IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1,   IP_CT_ESTABLISHED,   IP_CT_RELATED,   IP_CT_NEW,   IP_CT_IS_REPLY,   IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1 }

Functions
int	cthelper_expect_init (struct nf_expect *exp, struct nf_conntrack *master, uint32_t class, union nfct_attr_grp_addr *saddr, union nfct_attr_grp_addr *daddr, uint8_t l4proto, uint16_t *sport, uint16_t *dport, uint32_t flags)
int	cthelper_add_expect (struct nf_expect *exp)
int	cthelper_del_expect (struct nf_expect *exp)
void	cthelper_get_addr_src (struct nf_conntrack *ct, int dir, union nfct_attr_grp_addr *addr)
void	cthelper_get_addr_dst (struct nf_conntrack *ct, int dir, union nfct_attr_grp_addr *addr)
void	cthelper_get_port_src (struct nf_conntrack *ct, int dir, uint16_t *port)
void	cthelper_get_port_dst (struct nf_conntrack *ct, int dir, uint16_t *port)
int	in4_pton (const char *src, int srclen, uint8_t *dst, int delim, const char **end)
int	in6_pton (const char *src, int srclen, uint8_t *dst, int delim, const char **end)
void	helper_register (struct ctd_helper *helper)
struct ctd_helper *	helper_find (const char *libdir_path, const char *name, uint8_t l4proto, int flags)

Macro Definition Documentation

#define ARRAY_SIZE   MNL_ARRAY_SIZE

Referenced by _init(), icmp_to_name(), icmpv6_to_name(), id_to_icmp(), id_to_icmpv6(), name_to_icmp(), name_to_icmpv6(), nfnl_ct_status2str(), nfnl_ct_str2status(), nfnl_ct_str2tcp_state(), nfnl_ct_tcp_state2str(), nfnl_inet_hook2str(), nfnl_log_copy_mode2str(), nfnl_log_flags2str(), nfnl_log_str2copy_mode(), nfnl_log_str2flags(), nfnl_nft_cmp_op2str(), nfnl_nft_cmp_str2op(), nfnl_nft_ct_key2str(), nfnl_nft_ct_str2key(), nfnl_nft_meta_key2str(), nfnl_nft_meta_str2key(), nfnl_nft_set_flags2str(), nfnl_nft_set_str2flags(), nfnl_nft_setelem_flags2str(), nfnl_nft_setelem_str2flags(), nfnl_nft_str2verdict(), nfnl_nft_verdict2str(), nfnl_queue_copy_mode2str(), nfnl_queue_str2copy_mode(), nfnl_str2inet_hook(), nfnl_str2verdict(), nfnl_verdict2str(), nl_af2str(), nl_ether_proto2str(), nl_llproto2str(), nl_msec2str(), nl_nlfamily2str(), nl_nlmsgtype2str(), nl_ovl_strategy2str(), nl_police2str(), nl_rtntype2str(), nl_str2af(), nl_str2ether_proto(), nl_str2llproto(), nl_str2nlfamily(), nl_str2nlmsgtype(), nl_str2ovl_strategy(), nl_str2police(), nl_str2rtntype(), rtnl_addr_flags2str(), rtnl_addr_str2flags(), rtnl_link_flags2str(), rtnl_link_mode2str(), rtnl_link_operstate2str(), rtnl_link_stat2str(), rtnl_link_str2flags(), rtnl_link_str2mode(), rtnl_link_str2operstate(), rtnl_link_str2stat(), rtnl_link_vlan_flags2str(), rtnl_link_vlan_str2flags(), rtnl_neigh_flags2str(), rtnl_neigh_state2str(), rtnl_neigh_str2flag(), rtnl_neigh_str2state(), rtnl_prio2str(), rtnl_route_metric2str(), rtnl_route_nh_flags2str(), rtnl_route_nh_str2flags(), rtnl_route_str2metric(), rtnl_scope2str(), rtnl_str2prio(), rtnl_str2scope(), xtables_option_metavalidate(), xtables_option_parse(), and xtables_parse_protocol().

#define CTD_HELPER_NAME_LEN   16

#define CTD_HELPER_POLICY_MAX   4

#define CTINFO2DIR

(

ctinfo

)

((ctinfo) >= IP_CT_IS_REPLY ? IP_CT_DIR_REPLY : IP_CT_DIR_ORIGINAL)

#define max_t	(		type,
			x,
			y
	)

Value:

({          \
	type __max1 = (x);         \
	type __max2 = (y);         \
    __max1 > __max2 ? __max1: __max2; })

#define min_t	(		type,
			x,
			y
	)

Value:

({          \
	type __min1 = (x);         \
	type __min2 = (y);         \
    __min1 < __min2 ? __min1: __min2; })

Referenced by nla_memcpy().

#define pr_debug	(		fmt,
			arg...
	)		({ if (0) printf(fmt, ##arg); 0; })

Referenced by config_parse_file(), config_register_file(), ip_set_add(), ip_set_alloc(), ip_set_del(), ip_set_free(), ip_set_test(), ip_set_type_register(), and ip_set_type_unregister().

Enumeration Type Documentation

enum ip_conntrack_dir

Enumerator
IP_CT_DIR_ORIGINAL
IP_CT_DIR_REPLY
IP_CT_DIR_MAX
IP_CT_DIR_ORIGINAL
IP_CT_DIR_REPLY
IP_CT_DIR_MAX
IP_CT_DIR_ORIGINAL
IP_CT_DIR_REPLY
IP_CT_DIR_MAX

enum ip_conntrack_info

Enumerator
IP_CT_ESTABLISHED
IP_CT_RELATED
IP_CT_NEW
IP_CT_IS_REPLY
IP_CT_ESTABLISHED_REPLY
IP_CT_RELATED_REPLY
IP_CT_NEW_REPLY
IP_CT_NUMBER
IP_CT_ESTABLISHED
IP_CT_RELATED
IP_CT_NEW
IP_CT_IS_REPLY
IP_CT_ESTABLISHED_REPLY
IP_CT_RELATED_REPLY
IP_CT_NEW_REPLY
IP_CT_NUMBER
IP_CT_ESTABLISHED
IP_CT_RELATED
IP_CT_NEW
IP_CT_IS_REPLY
IP_CT_NUMBER

Function Documentation

int cthelper_add_expect

(

struct nf_expect *

exp

)

References NFCT_Q_CREATE_UPDATE.

int cthelper_del_expect

(

struct nf_expect *

exp

)

References NFCT_Q_DESTROY.

int cthelper_expect_init	(	struct nf_expect *	exp,
		struct nf_conntrack *	master,
		uint32_t	class,
		union nfct_attr_grp_addr *	saddr,
		union nfct_attr_grp_addr *	daddr,
		uint8_t	l4proto,
		uint16_t *	sport,
		uint16_t *	dport,
		uint32_t	flags
	)

References ATTR_EXP_EXPECTED, ATTR_EXP_FLAGS, ATTR_EXP_MASK, ATTR_EXP_MASTER, ATTR_IPV4_DST, ATTR_IPV4_SRC, ATTR_IPV6_DST, ATTR_IPV6_SRC, ATTR_L3PROTO, ATTR_L4PROTO, ATTR_PORT_DST, ATTR_PORT_SRC, nfct_attr_grp_addr::ip, nfct_attr_grp_addr::ip6, mask, nfct_destroy(), nfct_get_attr_u8(), nfct_new(), nfct_set_attr(), nfct_set_attr_u16(), nfct_set_attr_u32(), nfct_set_attr_u8(), nfexp_set_attr(), and nfexp_set_attr_u32().

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void cthelper_get_addr_dst	(	struct nf_conntrack *	ct,
		int	dir,
		union nfct_attr_grp_addr *	addr
	)

References ATTR_GRP_ORIG_ADDR_DST, ATTR_GRP_REPL_ADDR_DST, MYCT_DIR_ORIG, MYCT_DIR_REPL, and nfct_get_attr_grp().

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void cthelper_get_addr_src	(	struct nf_conntrack *	ct,
		int	dir,
		union nfct_attr_grp_addr *	addr
	)

References ATTR_GRP_ORIG_ADDR_SRC, ATTR_GRP_REPL_ADDR_SRC, MYCT_DIR_ORIG, MYCT_DIR_REPL, and nfct_get_attr_grp().

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void cthelper_get_port_dst	(	struct nf_conntrack *	ct,
		int	dir,
		uint16_t *	port
	)

References ATTR_PORT_DST, ATTR_REPL_PORT_DST, MYCT_DIR_ORIG, MYCT_DIR_REPL, and nfct_get_attr_u16().

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void cthelper_get_port_src	(	struct nf_conntrack *	ct,
		int	dir,
		uint16_t *	port
	)

References ATTR_PORT_SRC, ATTR_REPL_PORT_SRC, MYCT_DIR_ORIG, MYCT_DIR_REPL, and nfct_get_attr_u16().

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struct ctd_helper* helper_find	(	const char *	libdir_path,
		const char *	name,
		uint8_t	l4proto,
		int	flags
	)

References NULL.

void helper_register

(

struct ctd_helper *

helper

)

References ctd_helper::head.

Referenced by __attribute__().

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int in4_pton	(	const char *	src,
		int	srclen,
		uint8_t *	dst,
		int	delim,
		const char **	end
	)

References IN6PTON_COLON_MASK, IN6PTON_DELIM, IN6PTON_DIGIT, IN6PTON_DOT, and s.

Referenced by in6_pton().

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int in6_pton	(	const char *	src,
		int	srclen,
		uint8_t *	dst,
		int	delim,
		const char **	end
	)

References in4_pton(), IN6PTON_COLON_1, IN6PTON_COLON_1_2, IN6PTON_COLON_2, IN6PTON_COLON_MASK, IN6PTON_DELIM, IN6PTON_DOT, IN6PTON_NULL, IN6PTON_XDIGIT, NULL, s, and state.

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