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0001 /* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
0002 #ifndef __LINUX_ARP_NETFILTER_H
0003 #define __LINUX_ARP_NETFILTER_H
0004 
0005 /* ARP-specific defines for netfilter.
0006  * (C)2002 Rusty Russell IBM -- This code is GPL.
0007  */
0008 
0009 #include <linux/netfilter.h>
0010 
0011 /* There is no PF_ARP. */
0012 #define NF_ARP      0
0013 
0014 /* ARP Hooks */
0015 #define NF_ARP_IN   0
0016 #define NF_ARP_OUT  1
0017 #define NF_ARP_FORWARD  2
0018 
0019 #ifndef __KERNEL__
0020 #define NF_ARP_NUMHOOKS 3
0021 #endif
0022 
0023 #endif /* __LINUX_ARP_NETFILTER_H */