From: Hangbin Liu <liuhangbin@xxxxxxxxx>
[ Upstream commit 820da5357572715c6235ba3b3daa2d5b43a1198f ]
Report offset parameter in L2TP_CMD_SESSION_GET command if
it has been configured by userspace
Fixes: 309795f4bec ("l2tp: Add netlink control API for L2TP")
Reported-by: Jianlin Shi <jishi@xxxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
net/l2tp/l2tp_netlink.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 0ac907adb2f4..9afeec7117e3 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -633,6 +633,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
if ((session->ifname[0] &&
nla_put_string(skb, L2TP_ATTR_IFNAME, session->ifname)) ||
+ (session->offset &&
+ nla_put_u16(skb, L2TP_ATTR_OFFSET, session->offset)) ||
(session->cookie_len &&
nla_put(skb, L2TP_ATTR_COOKIE, session->cookie_len,
&session->cookie[0])) ||
--
2.14.1