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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _UAPI__LINUX_NETFILTER_H#define _UAPI__LINUX_NETFILTER_H
#include <linux/types.h>#include <linux/compiler.h>#include <linux/in.h>#include <linux/in6.h>
/* Responses from hook functions. */#define NF_DROP 0#define NF_ACCEPT 1#define NF_STOLEN 2#define NF_QUEUE 3#define NF_REPEAT 4#define NF_STOP 5 /* Deprecated, for userspace nf_queue compatibility. */#define NF_MAX_VERDICT NF_STOP
/* we overload the higher bits for encoding auxiliary data such as the queue * number or errno values. Not nice, but better than additional function * arguments. */#define NF_VERDICT_MASK 0x000000ff
/* extra verdict flags have mask 0x0000ff00 */#define NF_VERDICT_FLAG_QUEUE_BYPASS 0x00008000
/* queue number (NF_QUEUE) or errno (NF_DROP) */#define NF_VERDICT_QMASK 0xffff0000#define NF_VERDICT_QBITS 16
#define NF_QUEUE_NR(x) ((((x) << 16) & NF_VERDICT_QMASK) | NF_QUEUE)
#define NF_DROP_ERR(x) (((-x) << 16) | NF_DROP)
/* only for userspace compatibility */#ifndef __KERNEL__
/* NF_VERDICT_BITS should be 8 now, but userspace might break if this changes */#define NF_VERDICT_BITS 16#endif
enum nf_inet_hooks { NF_INET_PRE_ROUTING, NF_INET_LOCAL_IN, NF_INET_FORWARD, NF_INET_LOCAL_OUT, NF_INET_POST_ROUTING, NF_INET_NUMHOOKS, NF_INET_INGRESS = NF_INET_NUMHOOKS,};
enum nf_dev_hooks { NF_NETDEV_INGRESS, NF_NETDEV_EGRESS, NF_NETDEV_NUMHOOKS};
enum { NFPROTO_UNSPEC = 0, NFPROTO_INET = 1, NFPROTO_IPV4 = 2, NFPROTO_ARP = 3, NFPROTO_NETDEV = 5, NFPROTO_BRIDGE = 7, NFPROTO_IPV6 = 10,#ifndef __KERNEL__ /* no longer supported by kernel */ NFPROTO_DECNET = 12,#endif NFPROTO_NUMPROTO,};
union nf_inet_addr { __u32 all[4]; __be32 ip; __be32 ip6[4]; struct in_addr in; struct in6_addr in6;};
#endif /* _UAPI__LINUX_NETFILTER_H */