LibrarySetup

Functions
struct nflog_handle *	nflog_open (void)
int	nflog_close (struct nflog_handle *h)
int	nflog_bind_pf (struct nflog_handle *h, uint16_t pf)
int	nflog_unbind_pf (struct nflog_handle *h, uint16_t pf)

Detailed Description

When the program has finished with libnetfilter_log, it has to call the nflog_close() function to release all associated resources.

Function Documentation

int nflog_bind_pf	(	struct nflog_handle *	h,
		uint16_t	pf
	)

nflog_bind_pf - bind a nflog handler to a given protocol family

Parameters

h	Netfilter log handle obtained via call to nflog_open()
pf	protocol family to bind to nflog handler obtained from nflog_open()

Binds the given log connection handle to process packets belonging to the given protocol family (ie. PF_INET, PF_INET6, etc).

Returns

integer inferior to 0 in case of failure

Definition at line 358 of file libnetfilter_log.c.

int nflog_close

(

struct nflog_handle *

h

)

nflog_close - close a nflog handler

Parameters

h	Netfilter log handle obtained via call to nflog_open()

This function closes the nflog handler and free associated resources.

Returns

0 on success, non-zero on failure.

Definition at line 341 of file libnetfilter_log.c.

struct nflog_handle* nflog_open

(

void

)

nflog_open - open a nflog handler

This function obtains a netfilter log connection handle. When you are finished with the handle returned by this function, you should destroy it by calling nflog_close(). A new netlink connection is obtained internally and associated with the log connection handle returned.

Returns

a pointer to a new log handle or NULL on failure.

Definition at line 285 of file libnetfilter_log.c.

int nflog_unbind_pf	(	struct nflog_handle *	h,
		uint16_t	pf
	)

nflog_unbind_pf - unbind nflog handler from a protocol family

Parameters

h	Netfilter log handle obtained via call to nflog_open()
pf	protocol family to unbind family from

Unbinds the given nflog handle from processing packets belonging to the given protocol family.

Definition at line 372 of file libnetfilter_log.c.