| Current File : //usr/include/linux/netfilter_ipv4/ipt_ULOG.h |
/* Header file for IP tables userspace logging, Version 1.8
*
* (C) 2000-2002 by Harald Welte <[email protected]>
*
* Distributed under the terms of GNU GPL */
#ifndef _IPT_ULOG_H
#define _IPT_ULOG_H
#ifndef NETLINK_NFLOG
#define NETLINK_NFLOG 5
#endif
#define ULOG_DEFAULT_NLGROUP 1
#define ULOG_DEFAULT_QTHRESHOLD 1
#define ULOG_MAC_LEN 80
#define ULOG_PREFIX_LEN 32
#define ULOG_MAX_QLEN 50
/* Why 50? Well... there is a limit imposed by the slab cache 131000
* bytes. So the multipart netlink-message has to be < 131000 bytes.
* Assuming a standard ethernet-mtu of 1500, we could define this up
* to 80... but even 50 seems to be big enough. */
/* private data structure for each rule with a ULOG target */
struct ipt_ulog_info {
unsigned int nl_group;
size_t copy_range;
size_t qthreshold;
char prefix[ULOG_PREFIX_LEN];
};
/* Format of the ULOG packets passed through netlink */
typedef struct ulog_packet_msg {
unsigned long mark;
long timestamp_sec;
long timestamp_usec;
unsigned int hook;
char indev_name[IFNAMSIZ];
char outdev_name[IFNAMSIZ];
size_t data_len;
char prefix[ULOG_PREFIX_LEN];
unsigned char mac_len;
unsigned char mac[ULOG_MAC_LEN];
unsigned char payload[0];
} ulog_packet_msg_t;
#endif /*_IPT_ULOG_H*/