netdev - [PATCH net-next] switchdev: enforce no pvid flag in vlan ranges

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Message-Id: <1444651299-2813-1-git-send-email-razor@blackwall.org>
Date:	Mon, 12 Oct 2015 14:01:39 +0200
From:	Nikolay Aleksandrov <razor@...ckwall.org>
To:	netdev@...r.kernel.org
Cc:	sfeldma@...il.com, jiri@...nulli.us,
	vivien.didelot@...oirfairelinux.com, davem@...emloft.net,
	Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Subject: [PATCH net-next] switchdev: enforce no pvid flag in vlan ranges

From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>

We shouldn't allow BRIDGE_VLAN_INFO_PVID flag in VLAN ranges.

Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
---
 net/switchdev/switchdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 6e4a4f9ad927..256c596de896 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -720,6 +720,9 @@ static int switchdev_port_br_afspec(struct net_device *dev,
 			if (vlan.vid_begin)
 				return -EINVAL;
 			vlan.vid_begin = vinfo->vid;
+			/* don't allow range of pvids */
+			if (vlan.flags & BRIDGE_VLAN_INFO_PVID)
+				return -EINVAL;
 		} else if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END) {
 			if (!vlan.vid_begin)
 				return -EINVAL;
-- 
2.4.3

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