| /* 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_ */ |
