2005-08-10 02:30:24 +00:00
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#ifndef _NFNETLINK_H
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#define _NFNETLINK_H
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#include <linux/types.h>
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2007-09-28 21:37:03 +00:00
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#include <linux/netfilter/nfnetlink_compat.h>
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2005-08-15 02:29:52 +00:00
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enum nfnetlink_groups {
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NFNLGRP_NONE,
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#define NFNLGRP_NONE NFNLGRP_NONE
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NFNLGRP_CONNTRACK_NEW,
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#define NFNLGRP_CONNTRACK_NEW NFNLGRP_CONNTRACK_NEW
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NFNLGRP_CONNTRACK_UPDATE,
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#define NFNLGRP_CONNTRACK_UPDATE NFNLGRP_CONNTRACK_UPDATE
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NFNLGRP_CONNTRACK_DESTROY,
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#define NFNLGRP_CONNTRACK_DESTROY NFNLGRP_CONNTRACK_DESTROY
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NFNLGRP_CONNTRACK_EXP_NEW,
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#define NFNLGRP_CONNTRACK_EXP_NEW NFNLGRP_CONNTRACK_EXP_NEW
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NFNLGRP_CONNTRACK_EXP_UPDATE,
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#define NFNLGRP_CONNTRACK_EXP_UPDATE NFNLGRP_CONNTRACK_EXP_UPDATE
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NFNLGRP_CONNTRACK_EXP_DESTROY,
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#define NFNLGRP_CONNTRACK_EXP_DESTROY NFNLGRP_CONNTRACK_EXP_DESTROY
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__NFNLGRP_MAX,
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};
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#define NFNLGRP_MAX (__NFNLGRP_MAX - 1)
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2005-08-10 02:30:24 +00:00
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/* General form of address family dependent message.
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*/
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struct nfgenmsg {
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2009-02-25 23:51:43 +00:00
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__u8 nfgen_family; /* AF_xxx */
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__u8 version; /* nfnetlink version */
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2006-11-08 08:26:51 +00:00
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__be16 res_id; /* resource id */
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2006-08-22 07:43:20 +00:00
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};
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2005-08-10 02:30:24 +00:00
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2005-08-10 02:32:58 +00:00
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#define NFNETLINK_V0 0
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2005-08-10 02:30:24 +00:00
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/* netfilter netlink message types are split in two pieces:
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* 8 bit subsystem, 8bit operation.
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*/
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#define NFNL_SUBSYS_ID(x) ((x & 0xff00) >> 8)
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#define NFNL_MSG_TYPE(x) (x & 0x00ff)
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2005-08-10 02:43:44 +00:00
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/* No enum here, otherwise __stringify() trick of MODULE_ALIAS_NFNL_SUBSYS()
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* won't work anymore */
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#define NFNL_SUBSYS_NONE 0
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#define NFNL_SUBSYS_CTNETLINK 1
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#define NFNL_SUBSYS_CTNETLINK_EXP 2
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#define NFNL_SUBSYS_QUEUE 3
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#define NFNL_SUBSYS_ULOG 4
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2009-06-08 15:01:51 +00:00
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#define NFNL_SUBSYS_OSF 5
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#define NFNL_SUBSYS_COUNT 6
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2005-08-10 02:30:24 +00:00
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#ifdef __KERNEL__
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2005-08-10 02:32:58 +00:00
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#include <linux/netlink.h>
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2005-08-10 02:30:24 +00:00
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#include <linux/capability.h>
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2007-09-28 21:37:03 +00:00
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#include <net/netlink.h>
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2005-08-10 02:30:24 +00:00
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2009-11-04 17:50:58 +00:00
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struct nfnl_callback {
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2005-08-10 02:30:24 +00:00
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int (*call)(struct sock *nl, struct sk_buff *skb,
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2009-08-25 14:07:58 +00:00
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const struct nlmsghdr *nlh,
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const struct nlattr * const cda[]);
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2007-09-28 21:38:52 +00:00
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const struct nla_policy *policy; /* netlink attribute policy */
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const u_int16_t attr_count; /* number of nlattr's */
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2005-08-10 02:30:24 +00:00
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};
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2009-11-04 17:50:58 +00:00
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struct nfnetlink_subsystem {
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2005-08-10 02:30:24 +00:00
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const char *name;
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2007-09-28 21:15:45 +00:00
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__u8 subsys_id; /* nfnetlink subsystem ID */
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__u8 cb_count; /* number of callbacks */
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const struct nfnl_callback *cb; /* callback for individual types */
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2005-08-10 02:30:24 +00:00
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};
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2007-09-28 21:15:45 +00:00
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extern int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
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extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
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2005-08-10 02:30:24 +00:00
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2010-01-13 15:02:14 +00:00
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extern int nfnetlink_has_listeners(struct net *net, unsigned int group);
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extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned group,
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2009-06-03 08:32:06 +00:00
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int echo, gfp_t flags);
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2010-03-16 13:30:21 +00:00
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extern int nfnetlink_set_err(struct net *net, u32 pid, u32 group, int error);
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2010-01-13 15:02:14 +00:00
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extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u_int32_t pid, int flags);
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2005-08-10 02:30:24 +00:00
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2008-10-14 18:58:31 +00:00
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extern void nfnl_lock(void);
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extern void nfnl_unlock(void);
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2005-08-10 02:43:44 +00:00
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#define MODULE_ALIAS_NFNL_SUBSYS(subsys) \
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MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys))
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2005-08-10 02:30:24 +00:00
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#endif /* __KERNEL__ */
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#endif /* _NFNETLINK_H */
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