Gecko [ www.jobworksschool.com ]

Name	Size	Permission	Date
9p	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
bluetooth	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
caif	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
iucv	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
mana	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
netfilter	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
netns	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
nfc	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
page_pool	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
phonet	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
sctp	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
tc_act	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
6lowpan.h	10.03 KB	-rw-r--r--	2024-03-10 20:38
Space.h	455 B	-rw-r--r--	2024-03-10 20:38
act_api.h	9.27 KB	-rw-r--r--	2024-03-10 20:38
addrconf.h	14.28 KB	-rw-r--r--	2026-05-26 09:55
af_ieee802154.h	1.19 KB	-rw-r--r--	2024-03-10 20:38
af_rxrpc.h	3.3 KB	-rw-r--r--	2024-03-10 20:38
af_unix.h	3.76 KB	-rw-r--r--	2026-05-26 09:55
af_vsock.h	8.41 KB	-rw-r--r--	2026-05-26 09:55
ah.h	382 B	-rw-r--r--	2024-03-10 20:38
amt.h	8.35 KB	-rw-r--r--	2024-03-10 20:38
arp.h	1.95 KB	-rw-r--r--	2024-03-10 20:38
atmclip.h	1.48 KB	-rw-r--r--	2024-03-10 20:38
ax25.h	14.94 KB	-rw-r--r--	2026-05-26 09:55
ax88796.h	1.43 KB	-rw-r--r--	2024-03-10 20:38
bareudp.h	333 B	-rw-r--r--	2024-03-10 20:38
bond_3ad.h	9.48 KB	-rw-r--r--	2026-05-26 09:55
bond_alb.h	6.1 KB	-rw-r--r--	2024-03-10 20:38
bond_options.h	4.83 KB	-rw-r--r--	2026-05-26 09:55
bonding.h	21.37 KB	-rw-r--r--	2026-05-26 09:55
bpf_sk_storage.h	1.74 KB	-rw-r--r--	2024-03-10 20:38
busy_poll.h	4.28 KB	-rw-r--r--	2026-05-26 09:55
calipso.h	1.55 KB	-rw-r--r--	2024-03-10 20:38
cfg80211-wext.h	1.86 KB	-rw-r--r--	2024-03-10 20:38
cfg80211.h	336.64 KB	-rw-r--r--	2026-05-26 09:55
cfg802154.h	16.68 KB	-rw-r--r--	2026-05-26 09:55
checksum.h	4.98 KB	-rw-r--r--	2026-05-26 09:55
cipso_ipv4.h	7.37 KB	-rw-r--r--	2024-03-10 20:38
cls_cgroup.h	2.04 KB	-rw-r--r--	2026-05-26 09:55
codel.h	5.86 KB	-rw-r--r--	2024-03-10 20:38
codel_impl.h	8.3 KB	-rw-r--r--	2024-03-10 20:38
codel_qdisc.h	2.95 KB	-rw-r--r--	2024-03-10 20:38
compat.h	2.48 KB	-rw-r--r--	2024-03-10 20:38
datalink.h	590 B	-rw-r--r--	2024-03-10 20:38
dcbevent.h	766 B	-rw-r--r--	2024-03-10 20:38
dcbnl.h	4.98 KB	-rw-r--r--	2024-03-10 20:38
devlink.h	70.92 KB	-rw-r--r--	2024-03-10 20:38
dropreason-core.h	14.76 KB	-rw-r--r--	2026-05-26 09:55
dropreason.h	1.36 KB	-rw-r--r--	2024-03-10 20:38
dsa.h	41.05 KB	-rw-r--r--	2026-05-26 09:55
dsa_stubs.h	1.28 KB	-rw-r--r--	2024-03-10 20:38
dsfield.h	1.12 KB	-rw-r--r--	2024-03-10 20:38
dst.h	15.12 KB	-rw-r--r--	2026-05-26 09:55
dst_cache.h	2.96 KB	-rw-r--r--	2024-03-10 20:38
dst_metadata.h	6.34 KB	-rw-r--r--	2024-03-10 20:38
dst_ops.h	2.07 KB	-rw-r--r--	2026-05-26 09:55
erspan.h	9.04 KB	-rw-r--r--	2024-03-10 20:38
esp.h	1.18 KB	-rw-r--r--	2024-03-10 20:38
espintcp.h	966 B	-rw-r--r--	2024-03-10 20:38
ethoc.h	439 B	-rw-r--r--	2024-03-10 20:38
failover.h	1.18 KB	-rw-r--r--	2024-03-10 20:38
fib_notifier.h	1.35 KB	-rw-r--r--	2024-03-10 20:38
fib_rules.h	5.39 KB	-rw-r--r--	2024-03-10 20:38
firewire.h	599 B	-rw-r--r--	2024-03-10 20:38
flow.h	4.96 KB	-rw-r--r--	2024-03-10 20:38
flow_dissector.h	11.95 KB	-rw-r--r--	2024-03-10 20:38
flow_offload.h	17.37 KB	-rw-r--r--	2024-03-10 20:38
fou.h	578 B	-rw-r--r--	2024-03-10 20:38
fq.h	2.41 KB	-rw-r--r--	2024-03-10 20:38
fq_impl.h	7.96 KB	-rw-r--r--	2024-03-10 20:38
garp.h	2.67 KB	-rw-r--r--	2024-03-10 20:38
gen_stats.h	2.99 KB	-rw-r--r--	2024-03-10 20:38
genetlink.h	19.62 KB	-rw-r--r--	2026-05-26 09:55
geneve.h	1.84 KB	-rw-r--r--	2024-03-10 20:38
gre.h	3.29 KB	-rw-r--r--	2024-03-10 20:38
gro.h	13.38 KB	-rw-r--r--	2026-05-26 09:55
gro_cells.h	443 B	-rw-r--r--	2024-03-10 20:38
gso.h	3.2 KB	-rw-r--r--	2024-03-10 20:38
gtp.h	1.46 KB	-rw-r--r--	2024-03-10 20:38
gue.h	3.29 KB	-rw-r--r--	2024-03-10 20:38
handshake.h	1.39 KB	-rw-r--r--	2024-03-10 20:38
hwbm.h	995 B	-rw-r--r--	2024-03-10 20:38
icmp.h	1.87 KB	-rw-r--r--	2024-03-10 20:38
ieee80211_radiotap.h	23.22 KB	-rw-r--r--	2026-05-26 09:55
ieee802154_netdev.h	13.02 KB	-rw-r--r--	2024-03-10 20:38
if_inet6.h	6.6 KB	-rw-r--r--	2024-03-10 20:38
ife.h	1.03 KB	-rw-r--r--	2024-03-10 20:38
inet6_connection_sock.h	794 B	-rw-r--r--	2024-03-10 20:38
inet6_hashtables.h	5.57 KB	-rw-r--r--	2026-05-26 09:55
inet_common.h	2.83 KB	-rw-r--r--	2024-03-10 20:38
inet_connection_sock.h	11.7 KB	-rw-r--r--	2026-05-26 09:55
inet_dscp.h	1.55 KB	-rw-r--r--	2024-03-10 20:38
inet_ecn.h	7.83 KB	-rw-r--r--	2024-03-10 20:38
inet_frag.h	5.25 KB	-rw-r--r--	2026-05-26 09:55
inet_hashtables.h	16.6 KB	-rw-r--r--	2026-05-26 09:55
inet_sock.h	11.36 KB	-rw-r--r--	2026-05-26 09:55
inet_timewait_sock.h	3.71 KB	-rw-r--r--	2026-05-26 09:55
inetpeer.h	3.23 KB	-rw-r--r--	2026-05-26 09:55
ioam6.h	1.19 KB	-rw-r--r--	2024-03-10 20:38
ip.h	23.18 KB	-rw-r--r--	2026-05-26 09:55
ip6_checksum.h	2.3 KB	-rw-r--r--	2024-03-10 20:38
ip6_fib.h	17.13 KB	-rw-r--r--	2026-05-26 09:55
ip6_route.h	10.18 KB	-rw-r--r--	2026-05-26 09:55
ip6_tunnel.h	5.01 KB	-rw-r--r--	2024-03-10 20:38
ip_fib.h	16.13 KB	-rw-r--r--	2026-05-26 09:55
ip_tunnels.h	16.52 KB	-rw-r--r--	2026-05-26 09:55
ip_vs.h	53.83 KB	-rw-r--r--	2024-03-10 20:38
ipcomp.h	737 B	-rw-r--r--	2024-03-10 20:38
ipconfig.h	837 B	-rw-r--r--	2024-03-10 20:38
ipv6.h	37.58 KB	-rw-r--r--	2026-05-26 09:55
ipv6_frag.h	3.38 KB	-rw-r--r--	2024-03-10 20:38
ipv6_stubs.h	3.75 KB	-rw-r--r--	2026-05-26 09:55
iw_handler.h	20.66 KB	-rw-r--r--	2024-03-10 20:38
kcm.h	4.84 KB	-rw-r--r--	2026-05-26 09:55
l3mdev.h	7.03 KB	-rw-r--r--	2026-05-26 09:55
lag.h	409 B	-rw-r--r--	2024-03-10 20:38
lapb.h	4.82 KB	-rw-r--r--	2026-05-26 09:55
lib80211.h	3.92 KB	-rw-r--r--	2024-03-10 20:38
llc.h	4.41 KB	-rw-r--r--	2024-03-10 20:38
llc_c_ac.h	9.32 KB	-rw-r--r--	2024-03-10 20:38
llc_c_ev.h	10.61 KB	-rw-r--r--	2024-03-10 20:38
llc_c_st.h	1.77 KB	-rw-r--r--	2024-03-10 20:38
llc_conn.h	4.11 KB	-rw-r--r--	2024-03-10 20:38
llc_if.h	2.17 KB	-rw-r--r--	2024-03-10 20:38
llc_pdu.h	14.46 KB	-rw-r--r--	2024-03-10 20:38
llc_s_ac.h	1.59 KB	-rw-r--r--	2024-03-10 20:38
llc_s_ev.h	2.22 KB	-rw-r--r--	2024-03-10 20:38
llc_s_st.h	1.03 KB	-rw-r--r--	2024-03-10 20:38
llc_sap.h	1.08 KB	-rw-r--r--	2024-03-10 20:38
lwtunnel.h	6.69 KB	-rw-r--r--	2026-05-26 09:55
mac80211.h	293.16 KB	-rw-r--r--	2026-05-26 09:55
mac802154.h	14.88 KB	-rw-r--r--	2024-03-10 20:38
macsec.h	10.53 KB	-rw-r--r--	2026-05-26 09:55
mctp.h	8.03 KB	-rw-r--r--	2026-05-26 09:55
mctpdevice.h	1.26 KB	-rw-r--r--	2024-03-10 20:38
mip6.h	1016 B	-rw-r--r--	2024-03-10 20:38
mld.h	2.85 KB	-rw-r--r--	2024-03-10 20:38
mpls.h	943 B	-rw-r--r--	2024-03-10 20:38
mpls_iptunnel.h	481 B	-rw-r--r--	2024-03-10 20:38
mptcp.h	7.41 KB	-rw-r--r--	2024-03-10 20:38
mrp.h	3.13 KB	-rw-r--r--	2024-03-10 20:38
ncsi.h	1.94 KB	-rw-r--r--	2024-03-10 20:38
ndisc.h	14.64 KB	-rw-r--r--	2024-03-10 20:38
neighbour.h	16.55 KB	-rw-r--r--	2026-05-26 09:55
net_debug.h	5.08 KB	-rw-r--r--	2026-05-26 09:55
net_failover.h	1023 B	-rw-r--r--	2024-03-10 20:38
net_namespace.h	14.36 KB	-rw-r--r--	2026-05-26 09:55
net_ratelimit.h	220 B	-rw-r--r--	2024-03-10 20:38
net_trackers.h	424 B	-rw-r--r--	2024-03-10 20:38
netdev_queues.h	5.75 KB	-rw-r--r--	2024-03-10 20:38
netdev_rx_queue.h	1.32 KB	-rw-r--r--	2024-03-10 20:38
netevent.h	1.04 KB	-rw-r--r--	2024-03-10 20:38
netkit.h	1.16 KB	-rw-r--r--	2024-03-10 20:38
netlabel.h	20.15 KB	-rw-r--r--	2026-05-26 09:55
netlink.h	64.18 KB	-rw-r--r--	2024-03-10 20:38
netprio_cgroup.h	1.02 KB	-rw-r--r--	2024-03-10 20:38
netrom.h	7.73 KB	-rw-r--r--	2024-03-10 20:38
nexthop.h	11.91 KB	-rw-r--r--	2024-03-10 20:38
nl802154.h	16.04 KB	-rw-r--r--	2024-03-10 20:38
nsh.h	12.3 KB	-rw-r--r--	2024-03-10 20:38
p8022.h	403 B	-rw-r--r--	2024-03-10 20:38
pie.h	3.6 KB	-rw-r--r--	2024-03-10 20:38
ping.h	2.66 KB	-rw-r--r--	2024-03-10 20:38
pkt_cls.h	25.47 KB	-rw-r--r--	2024-03-10 20:38
pkt_sched.h	7.74 KB	-rw-r--r--	2026-05-26 09:55
pptp.h	604 B	-rw-r--r--	2024-03-10 20:38
protocol.h	3.81 KB	-rw-r--r--	2024-03-10 20:38
psample.h	1.06 KB	-rw-r--r--	2024-03-10 20:38
psnap.h	430 B	-rw-r--r--	2024-03-10 20:38
raw.h	2.46 KB	-rw-r--r--	2024-03-10 20:38
rawv6.h	862 B	-rw-r--r--	2024-03-10 20:38
red.h	11.33 KB	-rw-r--r--	2024-03-10 20:38
regulatory.h	9.96 KB	-rw-r--r--	2024-03-10 20:38
request_sock.h	6.5 KB	-rw-r--r--	2024-03-10 20:38
rose.h	8.06 KB	-rw-r--r--	2026-05-26 09:55
route.h	11.32 KB	-rw-r--r--	2026-05-26 09:55
rpl.h	749 B	-rw-r--r--	2024-03-10 20:38
rsi_91x.h	1.67 KB	-rw-r--r--	2024-03-10 20:38
rtnetlink.h	7.58 KB	-rw-r--r--	2026-05-26 09:55
rtnh.h	859 B	-rw-r--r--	2024-03-10 20:38
sch_generic.h	34.15 KB	-rw-r--r--	2026-05-26 09:55
scm.h	5.36 KB	-rw-r--r--	2026-05-26 09:55
secure_seq.h	868 B	-rw-r--r--	2024-03-10 20:38
seg6.h	2.18 KB	-rw-r--r--	2024-03-10 20:38
seg6_hmac.h	1.44 KB	-rw-r--r--	2024-03-10 20:38
seg6_local.h	644 B	-rw-r--r--	2024-03-10 20:38
selftests.h	582 B	-rw-r--r--	2024-03-10 20:38
slhc_vj.h	6.67 KB	-rw-r--r--	2024-03-10 20:38
smc.h	2.5 KB	-rw-r--r--	2026-05-26 09:55
snmp.h	5.14 KB	-rw-r--r--	2024-03-10 20:38
sock.h	85.78 KB	-rw-r--r--	2026-05-26 09:55
sock_reuseport.h	1.83 KB	-rw-r--r--	2024-03-10 20:38
stp.h	412 B	-rw-r--r--	2024-03-10 20:38
strparser.h	4.34 KB	-rw-r--r--	2026-05-26 09:55
switchdev.h	15.1 KB	-rw-r--r--	2024-03-10 20:38
tc_wrapper.h	6.29 KB	-rw-r--r--	2026-05-26 09:55
tcp.h	85.12 KB	-rw-r--r--	2026-05-26 09:55
tcp_ao.h	12.08 KB	-rw-r--r--	2026-05-26 09:55
tcp_states.h	1.3 KB	-rw-r--r--	2024-03-10 20:38
tcx.h	4.3 KB	-rw-r--r--	2026-05-26 09:55
timewait_sock.h	925 B	-rw-r--r--	2024-03-10 20:38
tipc.h	2.35 KB	-rw-r--r--	2024-03-10 20:38
tls.h	13.28 KB	-rw-r--r--	2026-05-26 09:55
tls_prot.h	1.84 KB	-rw-r--r--	2024-03-10 20:38
tls_toe.h	2.94 KB	-rw-r--r--	2024-03-10 20:38
transp_v6.h	1.88 KB	-rw-r--r--	2024-03-10 20:38
tso.h	721 B	-rw-r--r--	2024-03-10 20:38
tun_proto.h	1015 B	-rw-r--r--	2024-03-10 20:38
udp.h	15.88 KB	-rw-r--r--	2026-05-26 09:55
udp_tunnel.h	12.47 KB	-rw-r--r--	2024-03-10 20:38
udplite.h	2.3 KB	-rw-r--r--	2024-03-10 20:38
vsock_addr.h	662 B	-rw-r--r--	2024-03-10 20:38
vxlan.h	15.83 KB	-rw-r--r--	2026-05-26 09:55
wext.h	1.47 KB	-rw-r--r--	2024-03-10 20:38
x25.h	9.46 KB	-rw-r--r--	2024-03-10 20:38
x25device.h	387 B	-rw-r--r--	2024-03-10 20:38
xdp.h	15.85 KB	-rw-r--r--	2026-05-26 09:55
xdp_priv.h	427 B	-rw-r--r--	2024-03-10 20:38
xdp_sock.h	6.3 KB	-rw-r--r--	2026-05-26 09:55
xdp_sock_drv.h	9.33 KB	-rw-r--r--	2024-03-10 20:38
xfrm.h	58.29 KB	-rw-r--r--	2026-05-26 09:55
xsk_buff_pool.h	7.13 KB	-rw-r--r--	2026-05-26 09:55

Rename

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (c) 2021 Taehee Yoo <ap420073@gmail.com>
 */
#ifndef _NET_AMT_H_
#define _NET_AMT_H_

#include <linux/siphash.h>
#include <linux/jhash.h>
#include <linux/netdevice.h>
#include <net/gro_cells.h>
#include <net/rtnetlink.h>

enum amt_msg_type {
	AMT_MSG_DISCOVERY = 1,
	AMT_MSG_ADVERTISEMENT,
	AMT_MSG_REQUEST,
	AMT_MSG_MEMBERSHIP_QUERY,
	AMT_MSG_MEMBERSHIP_UPDATE,
	AMT_MSG_MULTICAST_DATA,
	AMT_MSG_TEARDOWN,
	__AMT_MSG_MAX,
};

#define AMT_MSG_MAX (__AMT_MSG_MAX - 1)

enum amt_ops {
	/* A*B */
	AMT_OPS_INT,
	/* A+B */
	AMT_OPS_UNI,
	/* A-B */
	AMT_OPS_SUB,
	/* B-A */
	AMT_OPS_SUB_REV,
	__AMT_OPS_MAX,
};

#define AMT_OPS_MAX (__AMT_OPS_MAX - 1)

enum amt_filter {
	AMT_FILTER_FWD,
	AMT_FILTER_D_FWD,
	AMT_FILTER_FWD_NEW,
	AMT_FILTER_D_FWD_NEW,
	AMT_FILTER_ALL,
	AMT_FILTER_NONE_NEW,
	AMT_FILTER_BOTH,
	AMT_FILTER_BOTH_NEW,
	__AMT_FILTER_MAX,
};

#define AMT_FILTER_MAX (__AMT_FILTER_MAX - 1)

enum amt_act {
	AMT_ACT_GMI,
	AMT_ACT_GMI_ZERO,
	AMT_ACT_GT,
	AMT_ACT_STATUS_FWD_NEW,
	AMT_ACT_STATUS_D_FWD_NEW,
	AMT_ACT_STATUS_NONE_NEW,
	__AMT_ACT_MAX,
};

#define AMT_ACT_MAX (__AMT_ACT_MAX - 1)

enum amt_status {
	AMT_STATUS_INIT,
	AMT_STATUS_SENT_DISCOVERY,
	AMT_STATUS_RECEIVED_DISCOVERY,
	AMT_STATUS_SENT_ADVERTISEMENT,
	AMT_STATUS_RECEIVED_ADVERTISEMENT,
	AMT_STATUS_SENT_REQUEST,
	AMT_STATUS_RECEIVED_REQUEST,
	AMT_STATUS_SENT_QUERY,
	AMT_STATUS_RECEIVED_QUERY,
	AMT_STATUS_SENT_UPDATE,
	AMT_STATUS_RECEIVED_UPDATE,
	__AMT_STATUS_MAX,
};

#define AMT_STATUS_MAX (__AMT_STATUS_MAX - 1)

/* Gateway events only */
enum amt_event {
	AMT_EVENT_NONE,
	AMT_EVENT_RECEIVE,
	AMT_EVENT_SEND_DISCOVERY,
	AMT_EVENT_SEND_REQUEST,
	__AMT_EVENT_MAX,
};

struct amt_header {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u8 type:4,
	   version:4;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u8 version:4,
	   type:4;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
} __packed;

struct amt_header_discovery {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved:24;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		reserved:24;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_advertisement {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved:24;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		reserved:24;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
	__be32	ip4;
} __packed;

struct amt_header_request {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved1:7,
		p:1,
		reserved2:16;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		p:1,
		reserved1:7,
		reserved2:16;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_membership_query {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u64	type:4,
		version:4,
		reserved:6,
		l:1,
		g:1,
		response_mac:48;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u64	version:4,
		type:4,
		g:1,
		l:1,
		reserved:6,
		response_mac:48;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_membership_update {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u64	type:4,
		version:4,
		reserved:8,
		response_mac:48;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u64	version:4,
		type:4,
		reserved:8,
		response_mac:48;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_mcast_data {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u16	type:4,
		version:4,
		reserved:8;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u16	version:4,
		type:4,
		reserved:8;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
} __packed;

struct amt_headers {
	union {
		struct amt_header_discovery discovery;
		struct amt_header_advertisement advertisement;
		struct amt_header_request request;
		struct amt_header_membership_query query;
		struct amt_header_membership_update update;
		struct amt_header_mcast_data data;
	};
} __packed;

struct amt_gw_headers {
	union {
		struct amt_header_discovery discovery;
		struct amt_header_request request;
		struct amt_header_membership_update update;
	};
} __packed;

struct amt_relay_headers {
	union {
		struct amt_header_advertisement advertisement;
		struct amt_header_membership_query query;
		struct amt_header_mcast_data data;
	};
} __packed;

struct amt_skb_cb {
	struct amt_tunnel_list *tunnel;
};

struct amt_tunnel_list {
	struct list_head	list;
	/* Protect All resources under an amt_tunne_list */
	spinlock_t		lock;
	struct amt_dev		*amt;
	u32			nr_groups;
	u32			nr_sources;
	enum amt_status		status;
	struct delayed_work	gc_wq;
	__be16			source_port;
	__be32			ip4;
	__be32			nonce;
	siphash_key_t		key;
	u64			mac:48,
				reserved:16;
	struct rcu_head		rcu;
	struct hlist_head	groups[];
};

union amt_addr {
	__be32			ip4;
#if IS_ENABLED(CONFIG_IPV6)
	struct in6_addr		ip6;
#endif
};

/* RFC 3810
 *
 * When the router is in EXCLUDE mode, the router state is represented
 * by the notation EXCLUDE (X,Y), where X is called the "Requested List"
 * and Y is called the "Exclude List".  All sources, except those from
 * the Exclude List, will be forwarded by the router
 */
enum amt_source_status {
	AMT_SOURCE_STATUS_NONE,
	/* Node of Requested List */
	AMT_SOURCE_STATUS_FWD,
	/* Node of Exclude List */
	AMT_SOURCE_STATUS_D_FWD,
};

/* protected by gnode->lock */
struct amt_source_node {
	struct hlist_node	node;
	struct amt_group_node	*gnode;
	struct delayed_work     source_timer;
	union amt_addr		source_addr;
	enum amt_source_status	status;
#define AMT_SOURCE_OLD	0
#define AMT_SOURCE_NEW	1
	u8			flags;
	struct rcu_head		rcu;
};

/* Protected by amt_tunnel_list->lock */
struct amt_group_node {
	struct amt_dev		*amt;
	union amt_addr		group_addr;
	union amt_addr		host_addr;
	bool			v6;
	u8			filter_mode;
	u32			nr_sources;
	struct amt_tunnel_list	*tunnel_list;
	struct hlist_node	node;
	struct delayed_work     group_timer;
	struct rcu_head		rcu;
	struct hlist_head	sources[];
};

#define AMT_MAX_EVENTS	16
struct amt_events {
	enum amt_event event;
	struct sk_buff *skb;
};

struct amt_dev {
	struct net_device       *dev;
	struct net_device       *stream_dev;
	struct net		*net;
	/* Global lock for amt device */
	spinlock_t		lock;
	/* Used only in relay mode */
	struct list_head        tunnel_list;
	struct gro_cells	gro_cells;

/* Protected by RTNL */
	struct delayed_work     discovery_wq;
	/* Protected by RTNL */
	struct delayed_work     req_wq;
	/* Protected by RTNL */
	struct delayed_work     secret_wq;
	struct work_struct	event_wq;
	/* AMT status */
	enum amt_status		status;
	/* Generated key */
	siphash_key_t		key;
	struct socket	  __rcu *sock;
	u32			max_groups;
	u32			max_sources;
	u32			hash_buckets;
	u32			hash_seed;
	/* Default 128 */
	u32                     max_tunnels;
	/* Default 128 */
	u32                     nr_tunnels;
	/* Gateway or Relay mode */
	u32                     mode;
	/* Default 2268 */
	__be16			relay_port;
	/* Default 2268 */
	__be16			gw_port;
	/* Outer local ip */
	__be32			local_ip;
	/* Outer remote ip */
	__be32			remote_ip;
	/* Outer discovery ip */
	__be32			discovery_ip;
	/* Only used in gateway mode */
	__be32			nonce;
	/* Gateway sent request and received query */
	bool			ready4;
	bool			ready6;
	u8			req_cnt;
	u8			qi;
	u64			qrv;
	u64			qri;
	/* Used only in gateway mode */
	u64			mac:48,
				reserved:16;
	/* AMT gateway side message handler queue */
	struct amt_events	events[AMT_MAX_EVENTS];
	u8			event_idx;
	u8			nr_events;
};

#define AMT_TOS			0xc0
#define AMT_IPHDR_OPTS		4
#define AMT_IP6HDR_OPTS		8
#define AMT_GC_INTERVAL		(30 * 1000)
#define AMT_MAX_GROUP		32
#define AMT_MAX_SOURCE		128
#define AMT_HSIZE_SHIFT		8
#define AMT_HSIZE		(1 << AMT_HSIZE_SHIFT)

#define AMT_DISCOVERY_TIMEOUT	5000
#define AMT_INIT_REQ_TIMEOUT	1
#define AMT_INIT_QUERY_INTERVAL	125
#define AMT_MAX_REQ_TIMEOUT	120
#define AMT_MAX_REQ_COUNT	3
#define AMT_SECRET_TIMEOUT	60000
#define IANA_AMT_UDP_PORT	2268
#define AMT_MAX_TUNNELS         128
#define AMT_MAX_REQS		128
#define AMT_GW_HLEN (sizeof(struct iphdr) + \
		     sizeof(struct udphdr) + \
		     sizeof(struct amt_gw_headers))
#define AMT_RELAY_HLEN (sizeof(struct iphdr) + \
		     sizeof(struct udphdr) + \
		     sizeof(struct amt_relay_headers))

static inline bool netif_is_amt(const struct net_device *dev)
{
	return dev->rtnl_link_ops && !strcmp(dev->rtnl_link_ops->kind, "amt");
}

static inline u64 amt_gmi(const struct amt_dev *amt)
{
	return ((amt->qrv * amt->qi) + amt->qri) * 1000;
}

#endif /* _NET_AMT_H_ */