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Merge branch 'bridge_vlan_filtering' 

Vladislav Yasevich says:

====================
bridge: Two small fixes to vlan filtering code.

This series corrects 2 small issues that I've ran across recently
while doing more work with vlan filtering changes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-09-13 17:22:02 -04:00
parent 9a72c2da69 635126b7ca
commit 9e07a42238
2 changed files with 17 additions and 4 deletions
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3
net/bridge/br_private.h
View File

@ -309,6 +309,9 @@ struct br_input_skb_cb {
int igmp;
int mrouters_only;
#endif
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
bool vlan_filtered;
#endif
};
#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)

18
net/bridge/br_vlan.c
View File

@ -27,9 +27,13 @@ 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);
else
__vlan_delete_pvid(v, vid);
if (flags & BRIDGE_VLAN_INFO_UNTAGGED)
set_bit(vid, v->untagged_bitmap);
else
clear_bit(vid, v->untagged_bitmap);
}
static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
@ -125,7 +129,8 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br,
{
u16 vid;
if (!br->vlan_enabled)
/* If this packet was not filtered at input, let it pass */
if (!BR_INPUT_SKB_CB(skb)->vlan_filtered)
goto out;
/* Vlan filter table must be configured at this point. The
@ -164,8 +169,10 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
/* If VLAN filtering is disabled on the bridge, all packets are
* permitted.
*/
if (!br->vlan_enabled)
if (!br->vlan_enabled) {
BR_INPUT_SKB_CB(skb)->vlan_filtered = false;
return true;
}
/* If there are no vlan in the permitted list, all packets are
* rejected.
@ -173,6 +180,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
if (!v)
goto drop;
BR_INPUT_SKB_CB(skb)->vlan_filtered = true;
proto = br->vlan_proto;
/* If vlan tx offload is disabled on bridge device and frame was
@ -251,7 +259,8 @@ bool br_allowed_egress(struct net_bridge *br,
{
u16 vid;
if (!br->vlan_enabled)
/* If this packet was not filtered at input, let it pass */
if (!BR_INPUT_SKB_CB(skb)->vlan_filtered)
return true;
if (!v)
@ -270,7 +279,8 @@ bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid)
struct net_bridge *br = p->br;
struct net_port_vlans *v;
if (!br->vlan_enabled)
/* If filtering was disabled at input, let it pass. */
if (!BR_INPUT_SKB_CB(skb)->vlan_filtered)
return true;
v = rcu_dereference(p->vlan_info);