FM / net

/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/net/

/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/net

Name	Size	Mode	Actions
9p/	-	0755	rm
bluetooth/	-	0755	rm
caif/	-	0755	rm
iucv/	-	0755	rm
mana/	-	0755	rm
netfilter/	-	0755	rm
netns/	-	0755	rm
nfc/	-	0755	rm
phonet/	-	0755	rm
sctp/	-	0755	rm
tc_act/	-	0755	rm
6lowpan.h	10271	0644	edit dl rm
act_api.h	9559	0644	edit dl rm
addrconf.h	13826	0644	edit dl rm
af_ieee802154.h	1591	0644	edit dl rm
af_rxrpc.h	2976	0644	edit dl rm
af_unix.h	2272	0644	edit dl rm
af_vsock.h	7295	0644	edit dl rm
ah.h	382	0644	edit dl rm
arp.h	2052	0644	edit dl rm
atmclip.h	1515	0644	edit dl rm
ax25.h	14999	0644	edit dl rm
ax88796.h	1488	0644	edit dl rm
bareudp.h	333	0644	edit dl rm
bonding.h	20225	0644	edit dl rm
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bond_alb.h	6251	0644	edit dl rm
bond_options.h	3916	0644	edit dl rm
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busy_poll.h	4973	0644	edit dl rm
calipso.h	2199	0644	edit dl rm
cfg80211-wext.h	1900	0644	edit dl rm
cfg80211.h	325844	0644	edit dl rm
cfg802154.h	11175	0644	edit dl rm
checksum.h	4850	0644	edit dl rm
cipso_ipv4.h	8399	0644	edit dl rm
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datalink.h	619	0644	edit dl rm
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dropreason-core.h	12063	0644	edit dl rm
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ethoc.h	537	0644	edit dl rm
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firewire.h	636	0644	edit dl rm
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gro_cells.h	443	0644	edit dl rm
gtp.h	633	0644	edit dl rm
gue.h	3311	0644	edit dl rm
hwbm.h	937	0644	edit dl rm
icmp.h	1765	0644	edit dl rm
ieee80211_radiotap.h	23017	0644	edit dl rm
ieee802154_netdev.h	9358	0644	edit dl rm
ife.h	1057	0644	edit dl rm
if_inet6.h	6591	0644	edit dl rm
ila.h	498	0644	edit dl rm
inet6_connection_sock.h	976	0644	edit dl rm
inet6_hashtables.h	3746	0644	edit dl rm
inetpeer.h	3372	0644	edit dl rm
inet_common.h	2614	0644	edit dl rm
inet_connection_sock.h	12070	0644	edit dl rm
inet_ecn.h	8071	0644	edit dl rm
inet_frag.h	4816	0644	edit dl rm
inet_hashtables.h	13847	0644	edit dl rm
inet_sock.h	9828	0644	edit dl rm
inet_timewait_sock.h	3926	0644	edit dl rm
ip.h	21354	0644	edit dl rm
ip6_checksum.h	2981	0644	edit dl rm
ip6_fib.h	13766	0644	edit dl rm
ip6_route.h	9228	0644	edit dl rm
ip6_tunnel.h	5096	0644	edit dl rm
ipcomp.h	659	0644	edit dl rm
ipconfig.h	811	0644	edit dl rm
ipv6.h	32741	0644	edit dl rm
ipv6_frag.h	3321	0644	edit dl rm
ipv6_stubs.h	2671	0644	edit dl rm
ipx.h	4386	0644	edit dl rm
ip_fib.h	14290	0644	edit dl rm
ip_tunnels.h	14697	0644	edit dl rm
ip_vs.h	49407	0644	edit dl rm
iw_handler.h	21413	0644	edit dl rm
kcm.h	5083	0644	edit dl rm
l3mdev.h	6743	0644	edit dl rm
lag.h	409	0644	edit dl rm
lapb.h	4869	0644	edit dl rm
lib80211.h	4017	0644	edit dl rm
llc.h	4464	0644	edit dl rm
llc_conn.h	4155	0644	edit dl rm
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llc_c_ev.h	10940	0644	edit dl rm
llc_c_st.h	1762	0644	edit dl rm
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mac80211.h	294437	0644	edit dl rm
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mpls.h	1340	0644	edit dl rm
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ncsi.h	1964	0644	edit dl rm
ndisc.h	15095	0644	edit dl rm
neighbour.h	16289	0644	edit dl rm
netdev_queues.h	5609	0644	edit dl rm
netevent.h	1044	0644	edit dl rm
netlabel.h	21236	0644	edit dl rm
netlink.h	63253	0644	edit dl rm
netprio_cgroup.h	1260	0644	edit dl rm
netrom.h	7896	0644	edit dl rm
net_failover.h	1023	0644	edit dl rm
net_namespace.h	14177	0644	edit dl rm
net_ratelimit.h	220	0644	edit dl rm
nexthop.h	865	0644	edit dl rm
nl802154.h	12385	0644	edit dl rm
nsh.h	12602	0644	edit dl rm
p8022.h	447	0644	edit dl rm
page_pool.h	6985	0644	edit dl rm
pie.h	3684	0644	edit dl rm
ping.h	3197	0644	edit dl rm
pkt_cls.h	26178	0644	edit dl rm
pkt_sched.h	6543	0644	edit dl rm
pptp.h	557	0644	edit dl rm
protocol.h	4320	0644	edit dl rm
psample.h	1083	0644	edit dl rm
psnap.h	351	0644	edit dl rm
raw.h	2161	0644	edit dl rm
rawv6.h	856	0644	edit dl rm
red.h	11600	0644	edit dl rm
regulatory.h	10961	0644	edit dl rm
request_sock.h	6871	0644	edit dl rm
rose.h	7802	0644	edit dl rm
route.h	11390	0644	edit dl rm
rsi_91x.h	1710	0644	edit dl rm
rtnetlink.h	7317	0644	edit dl rm
sch_generic.h	33841	0644	edit dl rm
scm.h	3671	0644	edit dl rm
secure_seq.h	855	0644	edit dl rm
seg6.h	1874	0644	edit dl rm
seg6_hmac.h	1699	0644	edit dl rm
seg6_local.h	870	0644	edit dl rm
slhc_vj.h	6831	0644	edit dl rm
smc.h	2155	0644	edit dl rm
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sock.h	79182	0644	edit dl rm
sock_reuseport.h	1565	0644	edit dl rm
Space.h	1094	0644	edit dl rm
stp.h	383	0644	edit dl rm
strparser.h	4340	0644	edit dl rm
switchdev.h	17812	0644	edit dl rm
tcp.h	73206	0644	edit dl rm
tcp_states.h	1540	0644	edit dl rm
tc_wrapper.h	7033	0644	edit dl rm
timewait_sock.h	1136	0644	edit dl rm
tipc.h	2405	0644	edit dl rm
tls.h	21363	0644	edit dl rm
tls_toe.h	3006	0644	edit dl rm
transp_v6.h	1996	0644	edit dl rm
tso.h	515	0644	edit dl rm
tun_proto.h	988	0644	edit dl rm
udp.h	16481	0644	edit dl rm
udplite.h	3762	0644	edit dl rm
udp_tunnel.h	13376	0644	edit dl rm
vsock_addr.h	662	0644	edit dl rm
vxlan.h	13541	0644	edit dl rm
wext.h	1510	0644	edit dl rm
wimax.h	20445	0644	edit dl rm
x25.h	9658	0644	edit dl rm
x25device.h	387	0644	edit dl rm
xdp.h	9436	0644	edit dl rm
xdp_priv.h	446	0644	edit dl rm
xdp_sock.h	2094	0644	edit dl rm
xdp_sock_drv.h	6423	0644	edit dl rm
xfrm.h	59628	0644	edit dl rm
xsk_buff_pool.h	6550	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/net/dropreason-core.h (12063B)

/* SPDX-License-Identifier: GPL-2.0-or-later */

#ifndef _LINUX_DROPREASON_CORE_H
#define _LINUX_DROPREASON_CORE_H

#define DEFINE_DROP_REASON(FN, FNe)	\
	FN(NOT_SPECIFIED)		\
	FN(NO_SOCKET)			\
	FN(PKT_TOO_SMALL)		\
	FN(TCP_CSUM)			\
	FN(SOCKET_FILTER)		\
	FN(UDP_CSUM)			\
	FN(NETFILTER_DROP)		\
	FN(OTHERHOST)			\
	FN(IP_CSUM)			\
	FN(IP_INHDR)			\
	FN(IP_RPFILTER)			\
	FN(UNICAST_IN_L2_MULTICAST)	\
	FN(XFRM_POLICY)			\
	FN(IP_NOPROTO)			\
	FN(SOCKET_RCVBUFF)		\
	FN(PROTO_MEM)			\
	FN(TCP_MD5NOTFOUND)		\
	FN(TCP_MD5UNEXPECTED)		\
	FN(TCP_MD5FAILURE)		\
	FN(SOCKET_BACKLOG)		\
	FN(TCP_FLAGS)			\
	FN(TCP_ZEROWINDOW)		\
	FN(TCP_OLD_DATA)		\
	FN(TCP_OVERWINDOW)		\
	FN(TCP_OFOMERGE)		\
	FN(TCP_RFC7323_PAWS)		\
	FN(TCP_INVALID_SEQUENCE)	\
	FN(TCP_RESET)			\
	FN(TCP_INVALID_SYN)		\
	FN(TCP_CLOSE)			\
	FN(TCP_FASTOPEN)		\
	FN(TCP_OLD_ACK)			\
	FN(TCP_TOO_OLD_ACK)		\
	FN(TCP_ACK_UNSENT_DATA)		\
	FN(TCP_OFO_QUEUE_PRUNE)		\
	FN(TCP_OFO_DROP)		\
	FN(IP_OUTNOROUTES)		\
	FN(BPF_CGROUP_EGRESS)		\
	FN(IPV6DISABLED)		\
	FN(NEIGH_CREATEFAIL)		\
	FN(NEIGH_FAILED)		\
	FN(NEIGH_QUEUEFULL)		\
	FN(NEIGH_DEAD)			\
	FN(TC_EGRESS)			\
	FN(QDISC_DROP)			\
	FN(CPU_BACKLOG)			\
	FN(XDP)				\
	FN(TC_INGRESS)			\
	FN(UNHANDLED_PROTO)		\
	FN(SKB_CSUM)			\
	FN(SKB_GSO_SEG)			\
	FN(SKB_UCOPY_FAULT)		\
	FN(DEV_HDR)			\
	FN(DEV_READY)			\
	FN(FULL_RING)			\
	FN(NOMEM)			\
	FN(HDR_TRUNC)			\
	FN(TAP_FILTER)			\
	FN(TAP_TXFILTER)		\
	FN(ICMP_CSUM)			\
	FN(INVALID_PROTO)		\
	FN(IP_INADDRERRORS)		\
	FN(IP_INNOROUTES)		\
	FN(PKT_TOO_BIG)			\
	FN(DUP_FRAG)			\
	FN(FRAG_REASM_TIMEOUT)		\
	FN(FRAG_TOO_FAR)		\
	FN(TCP_MINTTL)			\
	FN(IPV6_BAD_EXTHDR)		\
	FN(IPV6_NDISC_FRAG)		\
	FN(IPV6_NDISC_HOP_LIMIT)	\
	FN(IPV6_NDISC_BAD_CODE)		\
	FN(IPV6_NDISC_BAD_OPTIONS)	\
	FN(IPV6_NDISC_NS_OTHERHOST)	\
	FN(TCP_OLD_SEQUENCE)		\
	FN(QUEUE_PURGE)			\
	FNe(MAX)

/**
 * enum skb_drop_reason - the reasons of skb drops
 *
 * The reason of skb drop, which is used in kfree_skb_reason().
 */
enum skb_drop_reason {
	/**
	 * @SKB_NOT_DROPPED_YET: skb is not dropped yet (used for no-drop case)
	 */
	SKB_NOT_DROPPED_YET = 0,
	/** @SKB_CONSUMED: packet has been consumed */
	SKB_CONSUMED,
	/** @SKB_DROP_REASON_NOT_SPECIFIED: drop reason is not specified */
	SKB_DROP_REASON_NOT_SPECIFIED,
	/** @SKB_DROP_REASON_NO_SOCKET: socket not found */
	SKB_DROP_REASON_NO_SOCKET,
	/** @SKB_DROP_REASON_PKT_TOO_SMALL: packet size is too small */
	SKB_DROP_REASON_PKT_TOO_SMALL,
	/** @SKB_DROP_REASON_TCP_CSUM: TCP checksum error */
	SKB_DROP_REASON_TCP_CSUM,
	/** @SKB_DROP_REASON_SOCKET_FILTER: dropped by socket filter */
	SKB_DROP_REASON_SOCKET_FILTER,
	/** @SKB_DROP_REASON_UDP_CSUM: UDP checksum error */
	SKB_DROP_REASON_UDP_CSUM,
	/** @SKB_DROP_REASON_NETFILTER_DROP: dropped by netfilter */
	SKB_DROP_REASON_NETFILTER_DROP,
	/**
	 * @SKB_DROP_REASON_OTHERHOST: packet don't belong to current host
	 * (interface is in promisc mode)
	 */
	SKB_DROP_REASON_OTHERHOST,
	/** @SKB_DROP_REASON_IP_CSUM: IP checksum error */
	SKB_DROP_REASON_IP_CSUM,
	/**
	 * @SKB_DROP_REASON_IP_INHDR: there is something wrong with IP header (see
	 * IPSTATS_MIB_INHDRERRORS)
	 */
	SKB_DROP_REASON_IP_INHDR,
	/**
	 * @SKB_DROP_REASON_IP_RPFILTER: IP rpfilter validate failed. see the
	 * document for rp_filter in ip-sysctl.rst for more information
	 */
	SKB_DROP_REASON_IP_RPFILTER,
	/**
	 * @SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST: destination address of L2 is
	 * multicast, but L3 is unicast.
	 */
	SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST,
	/** @SKB_DROP_REASON_XFRM_POLICY: xfrm policy check failed */
	SKB_DROP_REASON_XFRM_POLICY,
	/** @SKB_DROP_REASON_IP_NOPROTO: no support for IP protocol */
	SKB_DROP_REASON_IP_NOPROTO,
	/** @SKB_DROP_REASON_SOCKET_RCVBUFF: socket receive buff is full */
	SKB_DROP_REASON_SOCKET_RCVBUFF,
	/**
	 * @SKB_DROP_REASON_PROTO_MEM: proto memory limition, such as udp packet
	 * drop out of udp_memory_allocated.
	 */
	SKB_DROP_REASON_PROTO_MEM,
	/**
	 * @SKB_DROP_REASON_TCP_MD5NOTFOUND: no MD5 hash and one expected,
	 * corresponding to LINUX_MIB_TCPMD5NOTFOUND
	 */
	SKB_DROP_REASON_TCP_MD5NOTFOUND,
	/**
	 * @SKB_DROP_REASON_TCP_MD5UNEXPECTED: MD5 hash and we're not expecting
	 * one, corresponding to LINUX_MIB_TCPMD5UNEXPECTED
	 */
	SKB_DROP_REASON_TCP_MD5UNEXPECTED,
	/**
	 * @SKB_DROP_REASON_TCP_MD5FAILURE: MD5 hash and its wrong, corresponding
	 * to LINUX_MIB_TCPMD5FAILURE
	 */
	SKB_DROP_REASON_TCP_MD5FAILURE,
	/**
	 * @SKB_DROP_REASON_SOCKET_BACKLOG: failed to add skb to socket backlog (
	 * see LINUX_MIB_TCPBACKLOGDROP)
	 */
	SKB_DROP_REASON_SOCKET_BACKLOG,
	/** @SKB_DROP_REASON_TCP_FLAGS: TCP flags invalid */
	SKB_DROP_REASON_TCP_FLAGS,
	/**
	 * @SKB_DROP_REASON_TCP_ZEROWINDOW: TCP receive window size is zero,
	 * see LINUX_MIB_TCPZEROWINDOWDROP
	 */
	SKB_DROP_REASON_TCP_ZEROWINDOW,
	/**
	 * @SKB_DROP_REASON_TCP_OLD_DATA: the TCP data reveived is already
	 * received before (spurious retrans may happened), see
	 * LINUX_MIB_DELAYEDACKLOST
	 */
	SKB_DROP_REASON_TCP_OLD_DATA,
	/**
	 * @SKB_DROP_REASON_TCP_OVERWINDOW: the TCP data is out of window,
	 * the seq of the first byte exceed the right edges of receive
	 * window
	 */
	SKB_DROP_REASON_TCP_OVERWINDOW,
	/**
	 * @SKB_DROP_REASON_TCP_OFOMERGE: the data of skb is already in the ofo
	 * queue, corresponding to LINUX_MIB_TCPOFOMERGE
	 */
	SKB_DROP_REASON_TCP_OFOMERGE,
	/**
	 * @SKB_DROP_REASON_TCP_RFC7323_PAWS: PAWS check, corresponding to
	 * LINUX_MIB_PAWSESTABREJECTED
	 */
	SKB_DROP_REASON_TCP_RFC7323_PAWS,
	/** @SKB_DROP_REASON_TCP_INVALID_SEQUENCE: Not acceptable SEQ field */
	SKB_DROP_REASON_TCP_INVALID_SEQUENCE,
	/** @SKB_DROP_REASON_TCP_RESET: Invalid RST packet */
	SKB_DROP_REASON_TCP_RESET,
	/**
	 * @SKB_DROP_REASON_TCP_INVALID_SYN: Incoming packet has unexpected
	 * SYN flag
	 */
	SKB_DROP_REASON_TCP_INVALID_SYN,
	/** @SKB_DROP_REASON_TCP_CLOSE: TCP socket in CLOSE state */
	SKB_DROP_REASON_TCP_CLOSE,
	/** @SKB_DROP_REASON_TCP_FASTOPEN: dropped by FASTOPEN request socket */
	SKB_DROP_REASON_TCP_FASTOPEN,
	/** @SKB_DROP_REASON_TCP_OLD_ACK: TCP ACK is old, but in window */
	SKB_DROP_REASON_TCP_OLD_ACK,
	/** @SKB_DROP_REASON_TCP_TOO_OLD_ACK: TCP ACK is too old */
	SKB_DROP_REASON_TCP_TOO_OLD_ACK,
	/**
	 * @SKB_DROP_REASON_TCP_ACK_UNSENT_DATA: TCP ACK for data we haven't
	 * sent yet
	 */
	SKB_DROP_REASON_TCP_ACK_UNSENT_DATA,
	/** @SKB_DROP_REASON_TCP_OFO_QUEUE_PRUNE: pruned from TCP OFO queue */
	SKB_DROP_REASON_TCP_OFO_QUEUE_PRUNE,
	/** @SKB_DROP_REASON_TCP_OFO_DROP: data already in receive queue */
	SKB_DROP_REASON_TCP_OFO_DROP,
	/** @SKB_DROP_REASON_IP_OUTNOROUTES: route lookup failed */
	SKB_DROP_REASON_IP_OUTNOROUTES,
	/**
	 * @SKB_DROP_REASON_BPF_CGROUP_EGRESS: dropped by BPF_PROG_TYPE_CGROUP_SKB
	 * eBPF program
	 */
	SKB_DROP_REASON_BPF_CGROUP_EGRESS,
	/** @SKB_DROP_REASON_IPV6DISABLED: IPv6 is disabled on the device */
	SKB_DROP_REASON_IPV6DISABLED,
	/** @SKB_DROP_REASON_NEIGH_CREATEFAIL: failed to create neigh entry */
	SKB_DROP_REASON_NEIGH_CREATEFAIL,
	/** @SKB_DROP_REASON_NEIGH_FAILED: neigh entry in failed state */
	SKB_DROP_REASON_NEIGH_FAILED,
	/** @SKB_DROP_REASON_NEIGH_QUEUEFULL: arp_queue for neigh entry is full */
	SKB_DROP_REASON_NEIGH_QUEUEFULL,
	/** @SKB_DROP_REASON_NEIGH_DEAD: neigh entry is dead */
	SKB_DROP_REASON_NEIGH_DEAD,
	/** @SKB_DROP_REASON_TC_EGRESS: dropped in TC egress HOOK */
	SKB_DROP_REASON_TC_EGRESS,
	/**
	 * @SKB_DROP_REASON_QDISC_DROP: dropped by qdisc when packet outputting (
	 * failed to enqueue to current qdisc)
	 */
	SKB_DROP_REASON_QDISC_DROP,
	/**
	 * @SKB_DROP_REASON_CPU_BACKLOG: failed to enqueue the skb to the per CPU
	 * backlog queue. This can be caused by backlog queue full (see
	 * netdev_max_backlog in net.rst) or RPS flow limit
	 */
	SKB_DROP_REASON_CPU_BACKLOG,
	/** @SKB_DROP_REASON_XDP: dropped by XDP in input path */
	SKB_DROP_REASON_XDP,
	/** @SKB_DROP_REASON_TC_INGRESS: dropped in TC ingress HOOK */
	SKB_DROP_REASON_TC_INGRESS,
	/** @SKB_DROP_REASON_UNHANDLED_PROTO: protocol not implemented or not supported */
	SKB_DROP_REASON_UNHANDLED_PROTO,
	/** @SKB_DROP_REASON_SKB_CSUM: sk_buff checksum computation error */
	SKB_DROP_REASON_SKB_CSUM,
	/** @SKB_DROP_REASON_SKB_GSO_SEG: gso segmentation error */
	SKB_DROP_REASON_SKB_GSO_SEG,
	/**
	 * @SKB_DROP_REASON_SKB_UCOPY_FAULT: failed to copy data from user space,
	 * e.g., via zerocopy_sg_from_iter() or skb_orphan_frags_rx()
	 */
	SKB_DROP_REASON_SKB_UCOPY_FAULT,
	/** @SKB_DROP_REASON_DEV_HDR: device driver specific header/metadata is invalid */
	SKB_DROP_REASON_DEV_HDR,
	/**
	 * @SKB_DROP_REASON_DEV_READY: the device is not ready to xmit/recv due to
	 * any of its data structure that is not up/ready/initialized,
	 * e.g., the IFF_UP is not set, or driver specific tun->tfiles[txq]
	 * is not initialized
	 */
	SKB_DROP_REASON_DEV_READY,
	/** @SKB_DROP_REASON_FULL_RING: ring buffer is full */
	SKB_DROP_REASON_FULL_RING,
	/** @SKB_DROP_REASON_NOMEM: error due to OOM */
	SKB_DROP_REASON_NOMEM,
	/**
	 * @SKB_DROP_REASON_HDR_TRUNC: failed to trunc/extract the header from
	 * networking data, e.g., failed to pull the protocol header from
	 * frags via pskb_may_pull()
	 */
	SKB_DROP_REASON_HDR_TRUNC,
	/**
	 * @SKB_DROP_REASON_TAP_FILTER: dropped by (ebpf) filter directly attached
	 * to tun/tap, e.g., via TUNSETFILTEREBPF
	 */
	SKB_DROP_REASON_TAP_FILTER,
	/**
	 * @SKB_DROP_REASON_TAP_TXFILTER: dropped by tx filter implemented at
	 * tun/tap, e.g., check_filter()
	 */
	SKB_DROP_REASON_TAP_TXFILTER,
	/** @SKB_DROP_REASON_ICMP_CSUM: ICMP checksum error */
	SKB_DROP_REASON_ICMP_CSUM,
	/**
	 * @SKB_DROP_REASON_INVALID_PROTO: the packet doesn't follow RFC 2211,
	 * such as a broadcasts ICMP_TIMESTAMP
	 */
	SKB_DROP_REASON_INVALID_PROTO,
	/**
	 * @SKB_DROP_REASON_IP_INADDRERRORS: host unreachable, corresponding to
	 * IPSTATS_MIB_INADDRERRORS
	 */
	SKB_DROP_REASON_IP_INADDRERRORS,
	/**
	 * @SKB_DROP_REASON_IP_INNOROUTES: network unreachable, corresponding to
	 * IPSTATS_MIB_INADDRERRORS
	 */
	SKB_DROP_REASON_IP_INNOROUTES,
	/**
	 * @SKB_DROP_REASON_PKT_TOO_BIG: packet size is too big (maybe exceed the
	 * MTU)
	 */
	SKB_DROP_REASON_PKT_TOO_BIG,
	/** @SKB_DROP_REASON_DUP_FRAG: duplicate fragment */
	SKB_DROP_REASON_DUP_FRAG,
	/** @SKB_DROP_REASON_FRAG_REASM_TIMEOUT: fragment reassembly timeout */
	SKB_DROP_REASON_FRAG_REASM_TIMEOUT,
	/**
	 * @SKB_DROP_REASON_FRAG_TOO_FAR: ipv4 fragment too far.
	 * (/proc/sys/net/ipv4/ipfrag_max_dist)
	 */
	SKB_DROP_REASON_FRAG_TOO_FAR,
	/**
	 * @SKB_DROP_REASON_TCP_MINTTL: ipv4 ttl or ipv6 hoplimit below
	 * the threshold (IP_MINTTL or IPV6_MINHOPCOUNT).
	 */
	SKB_DROP_REASON_TCP_MINTTL,
	/** @SKB_DROP_REASON_IPV6_BAD_EXTHDR: Bad IPv6 extension header. */
	SKB_DROP_REASON_IPV6_BAD_EXTHDR,
	/** @SKB_DROP_REASON_IPV6_NDISC_FRAG: invalid frag (suppress_frag_ndisc). */
	SKB_DROP_REASON_IPV6_NDISC_FRAG,
	/** @SKB_DROP_REASON_IPV6_NDISC_HOP_LIMIT: invalid hop limit. */
	SKB_DROP_REASON_IPV6_NDISC_HOP_LIMIT,
	/** @SKB_DROP_REASON_IPV6_NDISC_BAD_CODE: invalid NDISC icmp6 code. */
	SKB_DROP_REASON_IPV6_NDISC_BAD_CODE,
	/** @SKB_DROP_REASON_IPV6_NDISC_BAD_OPTIONS: invalid NDISC options. */
	SKB_DROP_REASON_IPV6_NDISC_BAD_OPTIONS,
	/**
	 * @SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST: NEIGHBOUR SOLICITATION
	 * for another host.
	 */
	SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST,
	/** @SKB_DROP_REASON_TCP_OLD_SEQUENCE: Old SEQ field (duplicate packet) */
	SKB_DROP_REASON_TCP_OLD_SEQUENCE,
	/** @SKB_DROP_REASON_QUEUE_PURGE: bulk free. */
	SKB_DROP_REASON_QUEUE_PURGE,
	/**
	 * @SKB_DROP_REASON_MAX: the maximum of drop reason, which shouldn't be
	 * used as a real 'reason'
	 */
	SKB_DROP_REASON_MAX,
};

#define SKB_DR_INIT(name, reason)				\
	enum skb_drop_reason name = SKB_DROP_REASON_##reason
#define SKB_DR(name)						\
	SKB_DR_INIT(name, NOT_SPECIFIED)
#define SKB_DR_SET(name, reason)				\
	(name = SKB_DROP_REASON_##reason)
#define SKB_DR_OR(name, reason)					\
	do {							\
		if (name == SKB_DROP_REASON_NOT_SPECIFIED ||	\
		    name == SKB_NOT_DROPPED_YET)		\
			SKB_DR_SET(name, reason);		\
	} while (0)

extern const char * const drop_reasons[];

#endif

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