3ab1f683bf
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
#ifndef _NFNETLINK_H
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#define _NFNETLINK_H
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#include <linux/netlink.h>
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#include <linux/capability.h>
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#include <net/netlink.h>
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#include <uapi/linux/netfilter/nfnetlink.h>
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struct nfnl_callback {
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int (*call)(struct sock *nl, struct sk_buff *skb,
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const struct nlmsghdr *nlh,
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const struct nlattr * const cda[]);
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int (*call_rcu)(struct sock *nl, struct sk_buff *skb,
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const struct nlmsghdr *nlh,
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const struct nlattr * const cda[]);
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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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};
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struct nfnetlink_subsystem {
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const char *name;
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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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};
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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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extern int nfnetlink_has_listeners(struct net *net, unsigned int group);
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extern struct sk_buff *nfnetlink_alloc_skb(struct net *net, unsigned int size,
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u32 dst_portid, gfp_t gfp_mask);
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extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 portid,
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unsigned int group, int echo, gfp_t flags);
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extern int nfnetlink_set_err(struct net *net, u32 portid, u32 group, int error);
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extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net,
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u32 portid, int flags);
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extern void nfnl_lock(__u8 subsys_id);
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extern void nfnl_unlock(__u8 subsys_id);
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#define MODULE_ALIAS_NFNL_SUBSYS(subsys) \
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MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys))
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#endif /* _NFNETLINK_H */
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