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From: Tom Parkin <tparkin@katalix.com>
To: netdev@vger.kernel.org
Cc: Tom Parkin <tparkin@katalix.com>, James Chapman <jchapman@katalix.com>
Subject: [PATCH 03/12] l2tp: export l2tp_tunnel_closeall
Date: Tue, 19 Mar 2013 16:11:14 +0000	[thread overview]
Message-ID: <1363709483-24021-4-git-send-email-tparkin@katalix.com> (raw)
In-Reply-To: <1363709483-24021-1-git-send-email-tparkin@katalix.com>

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 <tparkin@katalix.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
---
 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 ee726a7..287e327 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 @@ end:
 
 /* 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 @@ again:
 	}
 	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 8eb8f1d..b0861f6 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);
-- 
1.7.9.5

  parent reply	other threads:[~2013-03-19 16:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-19 16:11 [PATCH 00/12] l2tp bugfix patchset Tom Parkin
2013-03-19 16:11 ` [PATCH 01/12] udp: add encap_destroy callback Tom Parkin
2013-03-19 16:11 ` [PATCH 02/12] l2tp: add udp encap socket destroy handler Tom Parkin
2013-03-19 16:11 ` Tom Parkin [this message]
2013-03-19 16:11 ` [PATCH 04/12] l2tp: close sessions in ip socket destroy callback Tom Parkin
2013-03-19 16:11 ` [PATCH 05/12] l2tp: close sessions before initiating tunnel delete Tom Parkin
2013-03-19 16:11 ` [PATCH 06/12] l2tp: take a reference for kernel sockets in l2tp_tunnel_sock_lookup Tom Parkin
2013-03-19 16:11 ` [PATCH 07/12] l2tp: don't BUG_ON sk_socket being NULL Tom Parkin
2013-03-19 16:11 ` [PATCH 08/12] l2tp: add session reorder queue purge function to core Tom Parkin
2013-03-19 16:11 ` [PATCH 09/12] l2tp: purge session reorder queue on delete Tom Parkin
2013-03-19 16:11 ` [PATCH 10/12] l2tp: push all ppp pseudowire shutdown through .release handler Tom Parkin
2013-03-19 16:11 ` [PATCH 11/12] l2tp: avoid deadlock in l2tp stats update Tom Parkin
2013-03-19 16:11 ` [PATCH 12/12] l2tp: unhash l2tp sessions on delete, not on free Tom Parkin
2013-03-20 16:14 ` [PATCH 00/12] l2tp bugfix patchset David Miller

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