#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <errno.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <libnetfilter_log/linux_nfnetlink_log.h>
#include <libnfnetlink/libnfnetlink.h>
#include <libnetfilter_log/libnetfilter_log.h>

Include dependency graph for libnetfilter_log.c:

Data Structures
struct	nflog_handle

struct	nflog_g_handle

struct	nflog_data

Macros
#define	SNPRINTF_FAILURE(ret, rem, offset, len)

Functions
struct nfnl_handle *	nflog_nfnlh (struct nflog_handle *h)

int	nflog_fd (struct nflog_handle *h)
	nflog_fd - get the file descriptor associated with the nflog handler More...

struct nflog_handle *	nflog_open_nfnl (struct nfnl_handle *nfnlh)

struct nflog_handle *	nflog_open (void)
	nflog_open - open a nflog handler More...

int	nflog_callback_register (struct nflog_g_handle gh, nflog_callback cb, void *data)

int	nflog_handle_packet (struct nflog_handle h, char buf, int len)

int	nflog_close (struct nflog_handle *h)
	nflog_close - close a nflog handler More...

int	nflog_bind_pf (struct nflog_handle *h, u_int16_t pf)
	nflog_bind_pf - bind a nflog handler to a given protocol family More...

int	nflog_unbind_pf (struct nflog_handle *h, u_int16_t pf)
	nflog_unbind_pf - unbind nflog handler from a protocol family More...

struct nflog_g_handle *	nflog_bind_group (struct nflog_handle *h, u_int16_t num)
	nflog_bind_group - bind a new handle to a specific group number. More...

int	nflog_unbind_group (struct nflog_g_handle *gh)
	nflog_unbind_group - unbind a group handle. More...

int	nflog_set_mode (struct nflog_g_handle *gh, u_int8_t mode, u_int32_t range)
	nflog_set_mode - set the amount of packet data that nflog copies to userspace More...

int	nflog_set_timeout (struct nflog_g_handle *gh, u_int32_t timeout)
	nflog_set_timeout - set the maximum time to push log buffer for this group More...

int	nflog_set_qthresh (struct nflog_g_handle *gh, u_int32_t qthresh)
	nflog_set_qthresh - set the maximum amount of logs in buffer for this group More...

int	nflog_set_nlbufsiz (struct nflog_g_handle *gh, u_int32_t nlbufsiz)
	nflog_set_nlbufsiz - set the size of the nflog buffer for this group More...

int	nflog_set_flags (struct nflog_g_handle *gh, u_int16_t flags)
	nflog_set_flags - set the nflog flags for this group More...

struct nfulnl_msg_packet_hdr *	nflog_get_msg_packet_hdr (struct nflog_data *nfad)
	nflog_get_msg_packet_hdr - return the metaheader that wraps the packet More...

u_int16_t	nflog_get_hwtype (struct nflog_data *nfad)
	nflog_get_hwtype - get the hardware link layer type from logging data More...

u_int16_t	nflog_get_msg_packet_hwhdrlen (struct nflog_data *nfad)
	nflog_get_hwhdrlen - get the length of the hardware link layer header More...

char *	nflog_get_msg_packet_hwhdr (struct nflog_data *nfad)
	nflog_get_msg_packet_hwhdr - get the hardware link layer header More...

u_int32_t	nflog_get_nfmark (struct nflog_data *nfad)
	nflog_get_nfmark - get the packet mark More...

int	nflog_get_timestamp (struct nflog_data nfad, struct timeval tv)
	nflog_get_timestamp - get the packet timestamp More...

u_int32_t	nflog_get_indev (struct nflog_data *nfad)
	nflog_get_indev - get the interface that the packet was received through More...

u_int32_t	nflog_get_physindev (struct nflog_data *nfad)
	nflog_get_physindev - get the physical interface that the packet was received More...

u_int32_t	nflog_get_outdev (struct nflog_data *nfad)
	nflog_get_outdev - gets the interface that the packet will be routed out More...

u_int32_t	nflog_get_physoutdev (struct nflog_data *nfad)
	nflog_get_physoutdev - get the physical interface that the packet output More...

struct nfulnl_msg_packet_hw *	nflog_get_packet_hw (struct nflog_data *nfad)
	nflog_get_packet_hw - get hardware address More...

int	nflog_get_payload (struct nflog_data nfad, char *data)
	nflog_get_payload - get payload of the logged packet More...

char *	nflog_get_prefix (struct nflog_data *nfad)
	nflog_get_prefix - get the logging string prefix More...

int	nflog_get_uid (struct nflog_data nfad, u_int32_t uid)
	nflog_get_uid - get the UID of the user that has generated the packet More...

int	nflog_get_gid (struct nflog_data nfad, u_int32_t gid)
	nflog_get_gid - get the GID of the user that has generated the packet More...

int	nflog_get_seq (struct nflog_data nfad, u_int32_t seq)
	nflog_get_seq - get the local nflog sequence number More...

int	nflog_get_seq_global (struct nflog_data nfad, u_int32_t seq)
	nflog_get_seq_global - get the global nflog sequence number More...

int	nflog_snprintf_xml (char buf, size_t rem, struct nflog_data tb, int flags)
	nflog_snprintf_xml - print the logged packet in XML format into a buffer More...

Variables
int	nflog_errno

Macro Definition Documentation

#define SNPRINTF_FAILURE	(	ret,
		rem,
		offset,
		len
	)

Value:

do {                                \
    if (ret < 0)                        \
        return ret;                 \
	len += ret;                        \
    if (ret > rem)                      \
        ret = rem;                  \
    offset += ret;                      \
    rem -= ret;                     \
} while (0)