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authorGuillaume Nault <g.nault@alphalink.fr>2018-08-10 14:21:55 +0300
committerDavid S. Miller <davem@davemloft.net>2018-08-11 22:13:49 +0300
commitd6a61ec936676dbe25a6eb76e1229787dc2fbba8 (patch)
tree6365ef6a97498aee99a5131bef45375d72d3d65a /net/l2tp/l2tp_netlink.c
parent8a8982d1e2137aa020dd9fbc96b5e3c4fd871d0c (diff)
downloadlinux-d6a61ec936676dbe25a6eb76e1229787dc2fbba8.tar.xz
l2tp: define l2tp_tunnel_uses_xfrm()
Use helper function to figure out if a tunnel is using ipsec. Also, avoid accessing ->sk_policy directly since it's RCU protected. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/l2tp_netlink.c')
-rw-r--r--net/l2tp/l2tp_netlink.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 2e1e92651545..357503e5acd5 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -710,9 +710,6 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
void *hdr;
struct nlattr *nest;
struct l2tp_tunnel *tunnel = session->tunnel;
- struct sock *sk = NULL;
-
- sk = tunnel->sock;
hdr = genlmsg_put(skb, portid, seq, &l2tp_nl_family, flags, cmd);
if (!hdr)
@@ -738,10 +735,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
nla_put_u8(skb, L2TP_ATTR_RECV_SEQ, session->recv_seq) ||
nla_put_u8(skb, L2TP_ATTR_SEND_SEQ, session->send_seq) ||
nla_put_u8(skb, L2TP_ATTR_LNS_MODE, session->lns_mode) ||
-#ifdef CONFIG_XFRM
- (((sk) && (sk->sk_policy[0] || sk->sk_policy[1])) &&
+ (l2tp_tunnel_uses_xfrm(tunnel) &&
nla_put_u8(skb, L2TP_ATTR_USING_IPSEC, 1)) ||
-#endif
(session->reorder_timeout &&
nla_put_msecs(skb, L2TP_ATTR_RECV_TIMEOUT,
session->reorder_timeout, L2TP_ATTR_PAD)))