/* SPDX-License-Identifier: GPL-2.0-only */ /* OpenVPN data channel offload * * Copyright (C) 2019-2025 OpenVPN, Inc. * * Author: James Yonan <james@openvpn.net> * Antonio Quartulli <antonio@openvpn.net> */ #ifndef _NET_OVPN_OVPNSTRUCT_H_ #define _NET_OVPN_OVPNSTRUCT_H_ #include <linux/workqueue.h> #include <net/gro_cells.h> #include <uapi/linux/if_link.h> #include <uapi/linux/ovpn.h> /** * struct ovpn_peer_collection - container of peers for MultiPeer mode * @by_id: table of peers index by ID * @by_vpn_addr4: table of peers indexed by VPN IPv4 address (items can be * rehashed on the fly due to peer IP change) * @by_vpn_addr6: table of peers indexed by VPN IPv6 address (items can be * rehashed on the fly due to peer IP change) * @by_transp_addr: table of peers indexed by transport address (items can be * rehashed on the fly due to peer IP change) */ struct ovpn_peer_collection { DECLARE_HASHTABLE(by_id, 12); struct hlist_nulls_head by_vpn_addr4[1 << 12]; struct hlist_nulls_head by_vpn_addr6[1 << 12]; struct hlist_nulls_head by_transp_addr[1 << 12]; }; /** * struct ovpn_priv - per ovpn interface state * @dev: the actual netdev representing the tunnel * @mode: device operation mode (i.e. p2p, mp, ..) * @lock: protect this object * @peers: data structures holding multi-peer references * @peer: in P2P mode, this is the only remote peer * @gro_cells: pointer to the Generic Receive Offload cell * @keepalive_work: struct used to schedule keepalive periodic job */ struct ovpn_priv { struct net_device *dev; enum ovpn_mode mode; spinlock_t lock; /* protect writing to the ovpn_priv object */ struct ovpn_peer_collection *peers; struct ovpn_peer __rcu *peer; struct gro_cells gro_cells; struct delayed_work keepalive_work; }; #endif /* _NET_OVPN_OVPNSTRUCT_H_ */