OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	05/09/2024 07:14:15 AM	rwxr-xr-x
📄 6lowpan.h	10.03 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 9p	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 Space.h	1.15 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 act_api.h	6.38 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 addrconf.h	12.63 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 af_ieee802154.h	1.55 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 af_rxrpc.h	2.79 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 af_unix.h	2.22 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 af_vsock.h	7.21 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ah.h	382 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 arp.h	2 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 atmclip.h	1.48 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ax25.h	15.02 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ax88796.h	998 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📁 bluetooth	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 bond_3ad.h	9.79 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 bond_alb.h	6.6 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 bond_options.h	3.92 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 bonding.h	19.1 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 busy_poll.h	3.81 KB	06/16/2023 05:32:39 PM	rw-r--r--
📁 caif	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 calipso.h	2.15 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cfg80211-wext.h	1.95 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cfg80211.h	221.24 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 cfg802154.h	10.89 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 checksum.h	4.76 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 cipso_ipv4.h	8.2 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cls_cgroup.h	2.15 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 codel.h	5.65 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 codel_impl.h	7.98 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 codel_qdisc.h	2.9 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 compat.h	2.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 datalink.h	619 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dcbevent.h	1.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dcbnl.h	4.2 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 devlink.h	13.25 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn.h	6.88 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn_dev.h	5.36 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn_fib.h	3.98 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn_neigh.h	968 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn_nsp.h	5.83 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dn_route.h	4.36 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dsa.h	13.94 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 dsfield.h	1.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dst.h	13.48 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 dst_cache.h	2.53 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dst_metadata.h	5.39 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 dst_ops.h	2 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 erspan.h	2.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 esp.h	877 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ethoc.h	538 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 fib_notifier.h	1.29 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 fib_rules.h	4.18 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 firewire.h	636 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 flow.h	6.16 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 flow_dissector.h	7.55 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 fou.h	549 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 fq.h	2.67 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 fq_impl.h	6.9 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 garp.h	2.62 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 gen_stats.h	2.34 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 genetlink.h	11.3 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 geneve.h	1.67 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 gre.h	2.99 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 gro_cells.h	443 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 gtp.h	633 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 gue.h	3.23 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 hwbm.h	937 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 icmp.h	2.01 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ieee80211_radiotap.h	6.63 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ieee802154_netdev.h	10.24 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 if_inet6.h	6.13 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ife.h	1.06 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ila.h	498 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 inet6_connection_sock.h	976 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 inet6_hashtables.h	3.7 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 inet_common.h	1.89 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 inet_connection_sock.h	10.48 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inet_ecn.h	6.02 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inet_frag.h	4.51 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inet_hashtables.h	12.91 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inet_sock.h	8.25 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inet_timewait_sock.h	3.82 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 inetpeer.h	3.29 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip.h	18.51 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip6_checksum.h	2.89 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ip6_fib.h	10.04 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip6_route.h	7.63 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip6_tunnel.h	4.72 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip_fib.h	10.72 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip_tunnels.h	13.61 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ip_vs.h	46.78 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ipcomp.h	659 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ipconfig.h	811 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ipv6.h	29.97 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ipv6_frag.h	2.54 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ipx.h	4.4 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 iucv	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 iw_handler.h	20.91 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 kcm.h	4.96 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 l3mdev.h	5.86 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 lapb.h	4.75 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 lib80211.h	3.92 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc.h	4.41 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 llc_c_ac.h	9.31 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_c_ev.h	10.68 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_c_st.h	1.72 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_conn.h	4.06 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 llc_if.h	2.16 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_pdu.h	14.44 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 llc_s_ac.h	1.55 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_s_ev.h	2.2 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_s_st.h	947 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 llc_sap.h	1.08 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 lwtunnel.h	5.84 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 mac80211.h	230.36 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 mac802154.h	15.27 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 mip6.h	1.58 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 mld.h	2.8 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 mpls.h	932 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mpls_iptunnel.h	827 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mrp.h	3.05 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ncsi.h	1.92 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ndisc.h	13.77 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 neighbour.h	15.06 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 net_namespace.h	10.08 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 net_ratelimit.h	220 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 netevent.h	910 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📁 netfilter	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 netlabel.h	20.74 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 netlink.h	40.39 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 netns	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 netprio_cgroup.h	1.24 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 netrom.h	7.68 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 nexthop.h	865 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📁 nfc	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 nl802154.h	12.09 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 nsh.h	12.31 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 p8022.h	447 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📁 phonet	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 ping.h	3.45 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pkt_cls.h	17.34 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 pkt_sched.h	4.05 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pptp.h	557 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 protocol.h	3.89 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 psample.h	860 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📄 psnap.h	351 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 raw.h	2.07 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 rawv6.h	854 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 red.h	10.45 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 regulatory.h	10.12 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 request_sock.h	6.46 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 rose.h	7.62 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 route.h	10.02 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 rtnetlink.h	6.13 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 sch_generic.h	23.3 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 scm.h	3.5 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 sctp	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 secure_seq.h	855 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📄 seg6.h	1.66 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 seg6_hmac.h	1.65 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 slhc_vj.h	6.67 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 smc.h	440 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 snmp.h	5.23 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 sock.h	70.05 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 sock_reuseport.h	863 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 stp.h	383 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 strparser.h	3.75 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 switchdev.h	6.52 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 tc_act	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 tcp.h	62.88 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 tcp_states.h	1.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 timewait_sock.h	1.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 tipc.h	2.34 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 tls.h	7.12 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 transp_v6.h	2.08 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 tso.h	515 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 tun_proto.h	988 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 udp.h	12.87 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 udp_tunnel.h	5.12 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 udplite.h	3.83 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 vsock_addr.h	1.05 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 vxlan.h	10.43 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 wext.h	1.51 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 wimax.h	19.97 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 x25.h	9.43 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 x25device.h	387 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 xfrm.h	53.72 KB	06/16/2023 05:32:39 PM	rw-r--r--

Editing: vxlan.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_VXLAN_H
#define __NET_VXLAN_H 1

#include <linux/if_vlan.h>
#include <net/udp_tunnel.h>
#include <net/dst_metadata.h>
#include <net/udp_tunnel.h>

/* VXLAN protocol (RFC 7348) header:
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |R|R|R|R|I|R|R|R|               Reserved                        |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                VXLAN Network Identifier (VNI) |   Reserved    |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 * I = VXLAN Network Identifier (VNI) present.
 */
struct vxlanhdr {
	__be32 vx_flags;
	__be32 vx_vni;
};

/* VXLAN header flags. */
#define VXLAN_HF_VNI	cpu_to_be32(BIT(27))

#define VXLAN_N_VID     (1u << 24)
#define VXLAN_VID_MASK  (VXLAN_N_VID - 1)
#define VXLAN_VNI_MASK	cpu_to_be32(VXLAN_VID_MASK << 8)
#define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))

#define VNI_HASH_BITS	10
#define VNI_HASH_SIZE	(1<<VNI_HASH_BITS)
#define FDB_HASH_BITS	8
#define FDB_HASH_SIZE	(1<<FDB_HASH_BITS)

/* Remote checksum offload for VXLAN (VXLAN_F_REMCSUM_[RT]X):
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |R|R|R|R|I|R|R|R|R|R|C|              Reserved                   |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |           VXLAN Network Identifier (VNI)      |O| Csum start  |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 * C = Remote checksum offload bit. When set indicates that the
 *     remote checksum offload data is present.
 *
 * O = Offset bit. Indicates the checksum offset relative to
 *     checksum start.
 *
 * Csum start = Checksum start divided by two.
 *
 * http://tools.ietf.org/html/draft-herbert-vxlan-rco
 */

/* VXLAN-RCO header flags. */
#define VXLAN_HF_RCO	cpu_to_be32(BIT(21))

/* Remote checksum offload header option */
#define VXLAN_RCO_MASK	cpu_to_be32(0x7f)  /* Last byte of vni field */
#define VXLAN_RCO_UDP	cpu_to_be32(0x80)  /* Indicate UDP RCO (TCP when not set *) */
#define VXLAN_RCO_SHIFT	1		   /* Left shift of start */
#define VXLAN_RCO_SHIFT_MASK ((1 << VXLAN_RCO_SHIFT) - 1)
#define VXLAN_MAX_REMCSUM_START (0x7f << VXLAN_RCO_SHIFT)

/*
 * VXLAN Group Based Policy Extension (VXLAN_F_GBP):
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |G|R|R|R|I|R|R|R|R|D|R|R|A|R|R|R|        Group Policy ID        |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                VXLAN Network Identifier (VNI) |   Reserved    |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 * G = Group Policy ID present.
 *
 * D = Don't Learn bit. When set, this bit indicates that the egress
 *     VTEP MUST NOT learn the source address of the encapsulated frame.
 *
 * A = Indicates that the group policy has already been applied to
 *     this packet. Policies MUST NOT be applied by devices when the
 *     A bit is set.
 *
 * https://tools.ietf.org/html/draft-smith-vxlan-group-policy
 */
struct vxlanhdr_gbp {
	u8	vx_flags;
#ifdef __LITTLE_ENDIAN_BITFIELD
	u8	reserved_flags1:3,
		policy_applied:1,
		reserved_flags2:2,
		dont_learn:1,
		reserved_flags3:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u8	reserved_flags1:1,
		dont_learn:1,
		reserved_flags2:2,
		policy_applied:1,
		reserved_flags3:3;
#else
#error	"Please fix <asm/byteorder.h>"
#endif
	__be16	policy_id;
	__be32	vx_vni;
};

/* VXLAN-GBP header flags. */
#define VXLAN_HF_GBP	cpu_to_be32(BIT(31))

#define VXLAN_GBP_USED_BITS (VXLAN_HF_GBP | cpu_to_be32(0xFFFFFF))

/* skb->mark mapping
 *
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |R|R|R|R|R|R|R|R|R|D|R|R|A|R|R|R|        Group Policy ID        |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */
#define VXLAN_GBP_DONT_LEARN		(BIT(6) << 16)
#define VXLAN_GBP_POLICY_APPLIED	(BIT(3) << 16)
#define VXLAN_GBP_ID_MASK		(0xFFFF)

/*
 * VXLAN Generic Protocol Extension (VXLAN_F_GPE):
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |R|R|Ver|I|P|R|O|       Reserved                |Next Protocol  |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                VXLAN Network Identifier (VNI) |   Reserved    |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 * Ver = Version. Indicates VXLAN GPE protocol version.
 *
 * P = Next Protocol Bit. The P bit is set to indicate that the
 *     Next Protocol field is present.
 *
 * O = OAM Flag Bit. The O bit is set to indicate that the packet
 *     is an OAM packet.
 *
 * Next Protocol = This 8 bit field indicates the protocol header
 * immediately following the VXLAN GPE header.
 *
 * https://tools.ietf.org/html/draft-ietf-nvo3-vxlan-gpe-01
 */

struct vxlanhdr_gpe {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u8	oam_flag:1,
		reserved_flags1:1,
		np_applied:1,
		instance_applied:1,
		version:2,
		reserved_flags2:2;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u8	reserved_flags2:2,
		version:2,
		instance_applied:1,
		np_applied:1,
		reserved_flags1:1,
		oam_flag:1;
#endif
	u8	reserved_flags3;
	u8	reserved_flags4;
	u8	next_protocol;
	__be32	vx_vni;
};

/* VXLAN-GPE header flags. */
#define VXLAN_HF_VER	cpu_to_be32(BIT(29) | BIT(28))
#define VXLAN_HF_NP	cpu_to_be32(BIT(26))
#define VXLAN_HF_OAM	cpu_to_be32(BIT(24))

#define VXLAN_GPE_USED_BITS (VXLAN_HF_VER | VXLAN_HF_NP | VXLAN_HF_OAM | \
			     cpu_to_be32(0xff))

struct vxlan_metadata {
	u32		gbp;
};

/* per UDP socket information */
struct vxlan_sock {
	struct hlist_node hlist;
	struct socket	 *sock;
	struct hlist_head vni_list[VNI_HASH_SIZE];
	refcount_t	  refcnt;
	u32		  flags;
};

union vxlan_addr {
	struct sockaddr_in sin;
	struct sockaddr_in6 sin6;
	struct sockaddr sa;
};

struct vxlan_rdst {
	union vxlan_addr	 remote_ip;
	__be16			 remote_port;
	__be32			 remote_vni;
	u32			 remote_ifindex;
	struct list_head	 list;
	struct rcu_head		 rcu;
	struct dst_cache	 dst_cache;
};

struct vxlan_config {
	union vxlan_addr	remote_ip;
	union vxlan_addr	saddr;
	__be32			vni;
	int			remote_ifindex;
	int			mtu;
	__be16			dst_port;
	u16			port_min;
	u16			port_max;
	u8			tos;
	u8			ttl;
	__be32			label;
	u32			flags;
	unsigned long		age_interval;
	unsigned int		addrmax;
	bool			no_share;
};

struct vxlan_dev_node {
	struct hlist_node hlist;
	struct vxlan_dev *vxlan;
};

/* Pseudo network device */
struct vxlan_dev {
	struct vxlan_dev_node hlist4;	/* vni hash table for IPv4 socket */
#if IS_ENABLED(CONFIG_IPV6)
	struct vxlan_dev_node hlist6;	/* vni hash table for IPv6 socket */
#endif
	struct list_head  next;		/* vxlan's per namespace list */
	struct vxlan_sock __rcu *vn4_sock;	/* listening socket for IPv4 */
#if IS_ENABLED(CONFIG_IPV6)
	struct vxlan_sock __rcu *vn6_sock;	/* listening socket for IPv6 */
#endif
	struct net_device *dev;
	struct net	  *net;		/* netns for packet i/o */
	struct vxlan_rdst default_dst;	/* default destination */

struct ip_tunnel_fan fan;

struct timer_list age_timer;
	spinlock_t	  hash_lock;
	unsigned int	  addrcnt;
	struct gro_cells  gro_cells;

struct vxlan_config	cfg;

struct hlist_head fdb_head[FDB_HASH_SIZE];
};

#define VXLAN_F_LEARN			0x01
#define VXLAN_F_PROXY			0x02
#define VXLAN_F_RSC			0x04
#define VXLAN_F_L2MISS			0x08
#define VXLAN_F_L3MISS			0x10
#define VXLAN_F_IPV6			0x20
#define VXLAN_F_UDP_ZERO_CSUM_TX	0x40
#define VXLAN_F_UDP_ZERO_CSUM6_TX	0x80
#define VXLAN_F_UDP_ZERO_CSUM6_RX	0x100
#define VXLAN_F_REMCSUM_TX		0x200
#define VXLAN_F_REMCSUM_RX		0x400
#define VXLAN_F_GBP			0x800
#define VXLAN_F_REMCSUM_NOPARTIAL	0x1000
#define VXLAN_F_COLLECT_METADATA	0x2000
#define VXLAN_F_GPE			0x4000
#define VXLAN_F_IPV6_LINKLOCAL		0x8000

/* Flags that are used in the receive path. These flags must match in
 * order for a socket to be shareable
 */
#define VXLAN_F_RCV_FLAGS		(VXLAN_F_GBP |			\
					 VXLAN_F_GPE |			\
					 VXLAN_F_UDP_ZERO_CSUM6_RX |	\
					 VXLAN_F_REMCSUM_RX |		\
					 VXLAN_F_REMCSUM_NOPARTIAL |	\
					 VXLAN_F_COLLECT_METADATA)

/* Flags that can be set together with VXLAN_F_GPE. */
#define VXLAN_F_ALLOWED_GPE		(VXLAN_F_GPE |			\
					 VXLAN_F_IPV6 |			\
					 VXLAN_F_IPV6_LINKLOCAL |	\
					 VXLAN_F_UDP_ZERO_CSUM_TX |	\
					 VXLAN_F_UDP_ZERO_CSUM6_TX |	\
					 VXLAN_F_UDP_ZERO_CSUM6_RX |	\
					 VXLAN_F_COLLECT_METADATA)

struct net_device *vxlan_dev_create(struct net *net, const char *name,
				    u8 name_assign_type, struct vxlan_config *conf);

static inline netdev_features_t vxlan_features_check(struct sk_buff *skb,
						     netdev_features_t features)
{
	u8 l4_hdr = 0;

if (!skb->encapsulation)
		return features;

switch (vlan_get_protocol(skb)) {
	case htons(ETH_P_IP):
		l4_hdr = ip_hdr(skb)->protocol;
		break;
	case htons(ETH_P_IPV6):
		l4_hdr = ipv6_hdr(skb)->nexthdr;
		break;
	default:
		return features;;
	}

if ((l4_hdr == IPPROTO_UDP) &&
	    (skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
	     skb->inner_protocol != htons(ETH_P_TEB) ||
	     (skb_inner_mac_header(skb) - skb_transport_header(skb) !=
	      sizeof(struct udphdr) + sizeof(struct vxlanhdr)) ||
	     (skb->ip_summed != CHECKSUM_NONE &&
	      !can_checksum_protocol(features, inner_eth_hdr(skb)->h_proto))))
		return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);

return features;
}

/* IP header + UDP + VXLAN + Ethernet header */
#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
/* IPv6 header + UDP + VXLAN + Ethernet header */
#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)

static inline struct vxlanhdr *vxlan_hdr(struct sk_buff *skb)
{
	return (struct vxlanhdr *)(udp_hdr(skb) + 1);
}

static inline __be32 vxlan_vni(__be32 vni_field)
{
#if defined(__BIG_ENDIAN)
	return (__force __be32)((__force u32)vni_field >> 8);
#else
	return (__force __be32)((__force u32)(vni_field & VXLAN_VNI_MASK) << 8);
#endif
}

static inline __be32 vxlan_vni_field(__be32 vni)
{
#if defined(__BIG_ENDIAN)
	return (__force __be32)((__force u32)vni << 8);
#else
	return (__force __be32)((__force u32)vni >> 8);
#endif
}

static inline size_t vxlan_rco_start(__be32 vni_field)
{
	return be32_to_cpu(vni_field & VXLAN_RCO_MASK) << VXLAN_RCO_SHIFT;
}

static inline size_t vxlan_rco_offset(__be32 vni_field)
{
	return (vni_field & VXLAN_RCO_UDP) ?
		offsetof(struct udphdr, check) :
		offsetof(struct tcphdr, check);
}

static inline __be32 vxlan_compute_rco(unsigned int start, unsigned int offset)
{
	__be32 vni_field = cpu_to_be32(start >> VXLAN_RCO_SHIFT);

if (offset == offsetof(struct udphdr, check))
		vni_field |= VXLAN_RCO_UDP;
	return vni_field;
}

static inline unsigned short vxlan_get_sk_family(struct vxlan_sock *vs)
{
	return vs->sock->sk->sk_family;
}

#endif