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Diffstat (limited to 'net/bridge/br_vlan.c')
-rw-r--r--net/bridge/br_vlan.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 9ea358f..93dde75 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -23,6 +23,15 @@ static void __vlan_delete_pvid(struct net_port_vlans *v, u16 vid)
v->pvid = 0;
}
+static void __vlan_add_flags(struct net_port_vlans *v, u16 vid, u16 flags)
+{
+ if (flags & BRIDGE_VLAN_INFO_PVID)
+ __vlan_add_pvid(v, vid);
+
+ if (flags & BRIDGE_VLAN_INFO_UNTAGGED)
+ set_bit(vid, v->untagged_bitmap);
+}
+
static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
{
struct net_bridge_port *p = NULL;
@@ -31,8 +40,7 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
int err;
if (test_bit(vid, v->vlan_bitmap)) {
- if (flags & BRIDGE_VLAN_INFO_PVID)
- __vlan_add_pvid(v, vid);
+ __vlan_add_flags(v, vid, flags);
return 0;
}
@@ -69,8 +77,7 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
set_bit(vid, v->vlan_bitmap);
v->num_vlans++;
- if (flags & BRIDGE_VLAN_INFO_PVID)
- __vlan_add_pvid(v, vid);
+ __vlan_add_flags(v, vid, flags);
return 0;
@@ -86,6 +93,7 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
return -EINVAL;
__vlan_delete_pvid(v, vid);
+ clear_bit(vid, v->untagged_bitmap);
if (v->port_idx && vid) {
struct net_device *dev = v->parent.port->dev;
@@ -144,11 +152,11 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br,
goto out;
/* At this point, we know that the frame was filtered and contains
- * a valid vlan id. If the vlan id matches the pvid of current port
+ * a valid vlan id. If the vlan id is set in the untagged bitmap,
* send untagged; otherwise, send taged.
*/
br_vlan_get_tag(skb, &vid);
- if (vid == br_get_pvid(pv))
+ if (test_bit(vid, pv->untagged_bitmap))
skb = br_vlan_untag(skb);
else {
/* Egress policy says "send tagged". If output device
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