18 /* Random numbers used for internal consistency checks of tunnel and session structures */
63  * Is linked into a per-tunnel session list and a per-net ("global") IDR tree.
71 	struct l2tp_tunnel	*tunnel;	/* back pointer to tunnel context */  member
83 	u32			nr_max;		/* max NR. Depends on tunnel */
88 	struct list_head	list;		/* per-tunnel list node */
133 /* L2TP tunnel configuration */
151 /* Represents a tunnel instance.
153  * Holds the tunnel socket (either passed from userspace or directly created by the kernel).
154  * Maintains a list of sessions belonging to the tunnel instance.
163 	bool			acpt_newsess;	/* indicates whether this tunnel accepts
179 	int			fd;		/* parent fd, if tunnel socket was created
194 	int (*session_create)(struct net *net, struct l2tp_tunnel *tunnel,
211 /* Tunnel and session refcounts */
212 void l2tp_tunnel_put(struct l2tp_tunnel *tunnel);
215 /* Tunnel and session lookup.
231 /* Tunnel and session lifetime management.
238 int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
240 void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
243 					 struct l2tp_tunnel *tunnel,
247 			  struct l2tp_tunnel *tunnel);
259 /* Transmit path helpers for sending packets over the tunnel socket. */
287 static inline u32 l2tp_tunnel_dst_mtu(const struct l2tp_tunnel *tunnel)  in l2tp_tunnel_dst_mtu()  argument
292 	dst = sk_dst_get(tunnel->sock);  in l2tp_tunnel_dst_mtu()
303 static inline bool l2tp_tunnel_uses_xfrm(const struct l2tp_tunnel *tunnel)  in l2tp_tunnel_uses_xfrm()  argument
305 	struct sock *sk = tunnel->sock;  in l2tp_tunnel_uses_xfrm()
311 static inline bool l2tp_tunnel_uses_xfrm(const struct l2tp_tunnel *tunnel)  in l2tp_tunnel_uses_xfrm()  argument