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nfnetlink.h

#ifndef _NFNETLINK_H
#define _NFNETLINK_H
#include <linux/types.h>

#ifndef __KERNEL__
/* nfnetlink groups: Up to 32 maximum - backwards compatibility for userspace */
#define NF_NETLINK_CONNTRACK_NEW          0x00000001
#define NF_NETLINK_CONNTRACK_UPDATE       0x00000002
#define NF_NETLINK_CONNTRACK_DESTROY            0x00000004
#define NF_NETLINK_CONNTRACK_EXP_NEW            0x00000008
#define NF_NETLINK_CONNTRACK_EXP_UPDATE         0x00000010
#define NF_NETLINK_CONNTRACK_EXP_DESTROY  0x00000020
#endif

enum nfnetlink_groups {
      NFNLGRP_NONE,
#define NFNLGRP_NONE                NFNLGRP_NONE
      NFNLGRP_CONNTRACK_NEW,
#define NFNLGRP_CONNTRACK_NEW       NFNLGRP_CONNTRACK_NEW
      NFNLGRP_CONNTRACK_UPDATE,
#define NFNLGRP_CONNTRACK_UPDATE    NFNLGRP_CONNTRACK_UPDATE
      NFNLGRP_CONNTRACK_DESTROY,
#define NFNLGRP_CONNTRACK_DESTROY   NFNLGRP_CONNTRACK_DESTROY
      NFNLGRP_CONNTRACK_EXP_NEW,
#define     NFNLGRP_CONNTRACK_EXP_NEW     NFNLGRP_CONNTRACK_EXP_NEW
      NFNLGRP_CONNTRACK_EXP_UPDATE,
#define NFNLGRP_CONNTRACK_EXP_UPDATE      NFNLGRP_CONNTRACK_EXP_UPDATE
      NFNLGRP_CONNTRACK_EXP_DESTROY,
#define NFNLGRP_CONNTRACK_EXP_DESTROY     NFNLGRP_CONNTRACK_EXP_DESTROY
      __NFNLGRP_MAX,
};
#define NFNLGRP_MAX     (__NFNLGRP_MAX - 1)

/* General form of address family dependent message.
 */
struct nfgenmsg {
      u_int8_t  nfgen_family;       /* AF_xxx */
      u_int8_t  version;            /* nfnetlink version */
      __be16    res_id;       /* resource id */
};

#define NFNETLINK_V0    0

/* netfilter netlink message types are split in two pieces:
 * 8 bit subsystem, 8bit operation.
 */

#define NFNL_SUBSYS_ID(x)     ((x & 0xff00) >> 8)
#define NFNL_MSG_TYPE(x)      (x & 0x00ff)

/* No enum here, otherwise __stringify() trick of MODULE_ALIAS_NFNL_SUBSYS()
 * won't work anymore */
#define NFNL_SUBSYS_NONE            0
#define NFNL_SUBSYS_CTNETLINK       1
#define NFNL_SUBSYS_CTNETLINK_EXP   2
#define NFNL_SUBSYS_QUEUE           3
#define NFNL_SUBSYS_ULOG            4
#define NFNL_SUBSYS_COUNT           5

#endif      /* _NFNETLINK_H */

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