From e34f4c7050e5471b6d4fb25380713937fc837514 Mon Sep 17 00:00:00 2001 From: Tom Parkin Date: Tue, 19 Mar 2013 06:11:14 +0000 Subject: [PATCH] l2tp: export l2tp_tunnel_closeall l2tp_core internally uses l2tp_tunnel_closeall to close all sessions in a tunnel when a UDP-encapsulation socket is destroyed. We need to do something similar for IP-encapsulation sockets. Export l2tp_tunnel_closeall as a GPL symbol to enable l2tp_ip and l2tp_ip6 to call it from their .destroy handlers. Signed-off-by: Tom Parkin Signed-off-by: James Chapman Signed-off-by: David S. Miller --- net/l2tp/l2tp_core.c | 4 ++-- net/l2tp/l2tp_core.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index ee726a7522925e..287e327342d171 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -114,7 +114,6 @@ struct l2tp_net { static void l2tp_session_set_header_len(struct l2tp_session *session, int version); static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel); -static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel); static inline struct l2tp_net *l2tp_pernet(struct net *net) { @@ -1312,7 +1311,7 @@ static void l2tp_tunnel_destruct(struct sock *sk) /* When the tunnel is closed, all the attached sessions need to go too. */ -static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel) +void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel) { int hash; struct hlist_node *walk; @@ -1375,6 +1374,7 @@ static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel) } write_unlock_bh(&tunnel->hlist_lock); } +EXPORT_SYMBOL_GPL(l2tp_tunnel_closeall); /* Tunnel socket destroy hook for UDP encapsulation */ static void l2tp_udp_encap_destroy(struct sock *sk) diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h index 8eb8f1d47f3ac2..b0861f68a10b2a 100644 --- a/net/l2tp/l2tp_core.h +++ b/net/l2tp/l2tp_core.h @@ -240,6 +240,7 @@ extern struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id); extern struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth); extern int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, struct l2tp_tunnel **tunnelp); +extern void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel); extern int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel); extern struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg); extern int l2tp_session_delete(struct l2tp_session *session);