netlink.c File Reference

#include "netlink.h"
#include "conntrackd.h"
#include "filter.h"
#include "log.h"
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/fcntl.h>
#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>

Include dependency graph for netlink.c:

Functions
struct nfct_handle *	nl_init_event_handler (void)
struct nlif_handle *	nl_init_interface_handler (void)
void	nl_resize_socket_buffer (struct nfct_handle *h)
int	nl_dump_conntrack_table (struct nfct_handle *h)
int	nl_flush_conntrack_table_selective (void)
int	nl_send_resync (struct nfct_handle *h)
int	nl_get_conntrack (struct nfct_handle *h, const struct nf_conntrack *ct)
int	nl_create_conntrack (struct nfct_handle *h, const struct nf_conntrack *orig, int timeout)
int	nl_update_conntrack (struct nfct_handle *h, const struct nf_conntrack *orig, int timeout)
int	nl_destroy_conntrack (struct nfct_handle *h, const struct nf_conntrack *ct)
int	nl_create_expect (struct nfct_handle *h, const struct nf_expect *orig, int timeout)
int	nl_destroy_expect (struct nfct_handle *h, const struct nf_expect *exp)
int	nl_get_expect (struct nfct_handle *h, const struct nf_expect *exp)
int	nl_dump_expect_table (struct nfct_handle *h)
int	nl_flush_expect_table (struct nfct_handle *h)
int	nl_send_expect_resync (struct nfct_handle *h)

Function Documentation

int nl_create_conntrack	(	struct nfct_handle *	h,
		const struct nf_conntrack *	orig,
		int	timeout
	)

References ATTR_STATUS, ATTR_TCP_FLAGS_ORIG, ATTR_TCP_FLAGS_REPL, ATTR_TCP_MASK_ORIG, ATTR_TCP_MASK_REPL, ATTR_TCP_STATE, ATTR_TIMEOUT, CONFIG, ct, flags, IP_CT_TCP_FLAG_BE_LIBERAL, IP_CT_TCP_FLAG_CLOSE_INIT, IP_CT_TCP_FLAG_SACK_PERM, IP_CT_TCP_FLAG_WINDOW_SCALE, IPS_EXPECTED, nfct_attr_is_set(), nfct_clone(), nfct_destroy(), nfct_get_attr_u32(), nfct_get_attr_u8(), NFCT_Q_CREATE, nfct_query(), nfct_set_attr_u32(), nfct_set_attr_u8(), nfct_setobjopt(), NFCT_SOPT_SETUP_REPLY, NULL, nf_conntrack::status, and TCP_CONNTRACK_TIME_WAIT.

Here is the call graph for this function:

int nl_create_expect	(	struct nfct_handle *	h,
		const struct nf_expect *	orig,
		int	timeout
	)

References ATTR_EXP_TIMEOUT, exp, NFCT_Q_CREATE, nfexp_clone(), nfexp_destroy(), nfexp_query(), nfexp_set_attr_u32(), and NULL.

Here is the call graph for this function:

int nl_destroy_conntrack	(	struct nfct_handle *	h,
		const struct nf_conntrack *	ct
	)

References NFCT_Q_DESTROY, and nfct_query().

Here is the call graph for this function:

int nl_destroy_expect	(	struct nfct_handle *	h,
		const struct nf_expect *	exp
	)

References NFCT_Q_DESTROY, and nfexp_query().

Here is the call graph for this function:

int nl_dump_conntrack_table

(

struct nfct_handle *

h

)

References NFCT_Q_DUMP, and nfct_query().

Referenced by ctnl_init().

Here is the call graph for this function:

Here is the caller graph for this function:

int nl_dump_expect_table

(

struct nfct_handle *

h

)

References NFCT_Q_DUMP, and nfexp_query().

Referenced by ctnl_init().

Here is the call graph for this function:

Here is the caller graph for this function:

int nl_flush_conntrack_table_selective

(

void

)

References CONNTRACK, dlog(), LOG_ERR, nfct_callback_register(), nfct_close(), nfct_open(), NFCT_Q_DUMP, nfct_query(), NFCT_T_ALL, and NULL.

Here is the call graph for this function:

int nl_flush_expect_table

(

struct nfct_handle *

h

)

References NFCT_Q_FLUSH, and nfexp_query().

Here is the call graph for this function:

int nl_get_conntrack	(	struct nfct_handle *	h,
		const struct nf_conntrack *	ct
	)

References nfct_copy(), NFCT_CP_ORIG, nfct_destroy(), nfct_new(), NFCT_Q_GET, nfct_query(), and NULL.

Here is the call graph for this function:

int nl_get_expect	(	struct nfct_handle *	h,
		const struct nf_expect *	exp
	)

References NFCT_Q_GET, nfexp_clone(), nfexp_destroy(), nfexp_query(), and NULL.

Here is the call graph for this function:

struct nfct_handle* nl_init_event_handler

(

void

)

References CONFIG, dlog(), LOG_ERR, LOG_NOTICE, NETLINK_BROADCAST_SEND_ERROR, NETLINK_NO_ENOBUFS, nfct_fd(), nfct_filter_attach(), nfct_filter_destroy(), nfct_nfnlh(), nfct_open(), nfnl_rcvbufsiz(), NULL, SOL_NETLINK, and STATE.

Referenced by ctnl_init().

Here is the call graph for this function:

Here is the caller graph for this function:

struct nlif_handle* nl_init_interface_handler

(

void

)

References nlif_fd(), nlif_open(), nlif_query(), and NULL.

Here is the call graph for this function:

void nl_resize_socket_buffer

(

struct nfct_handle *

h

)

References CONFIG, dlog(), LOG_NOTICE, LOG_WARNING, nfct_nfnlh(), nfnl_rcvbufsiz(), and s.

Here is the call graph for this function:

int nl_send_expect_resync

(

struct nfct_handle *

h

)

References NFCT_Q_DUMP, and nfexp_send().

Here is the call graph for this function:

int nl_send_resync

(

struct nfct_handle *

h

)

References NFCT_Q_DUMP, and nfct_send().

Here is the call graph for this function:

int nl_update_conntrack	(	struct nfct_handle *	h,
		const struct nf_conntrack *	orig,
		int	timeout
	)

References ATTR_DNAT_IPV4, ATTR_DNAT_PORT, ATTR_HELPER_NAME, ATTR_MASTER_IPV4_DST, ATTR_MASTER_IPV4_SRC, ATTR_MASTER_IPV6_DST, ATTR_MASTER_IPV6_SRC, ATTR_MASTER_L3PROTO, ATTR_MASTER_L4PROTO, ATTR_MASTER_PORT_DST, ATTR_MASTER_PORT_SRC, ATTR_SNAT_IPV4, ATTR_SNAT_PORT, ATTR_STATUS, ATTR_TCP_FLAGS_ORIG, ATTR_TCP_FLAGS_REPL, ATTR_TCP_MASK_ORIG, ATTR_TCP_MASK_REPL, ATTR_TCP_STATE, ATTR_TIMEOUT, CONFIG, ct, flags, IP_CT_TCP_FLAG_BE_LIBERAL, IP_CT_TCP_FLAG_CLOSE_INIT, IP_CT_TCP_FLAG_SACK_PERM, IP_CT_TCP_FLAG_WINDOW_SCALE, IPS_NAT_MASK, nfct_attr_is_set(), nfct_attr_unset(), nfct_clone(), nfct_destroy(), nfct_get_attr_u32(), nfct_get_attr_u8(), NFCT_Q_UPDATE, nfct_query(), nfct_set_attr_u32(), nfct_set_attr_u8(), NULL, nf_conntrack::status, and TCP_CONNTRACK_TIME_WAIT.

Here is the call graph for this function: