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| author | Vlad Yasevich <vyasevich@gmail.com> | 2014-10-03 11:29:18 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-05 21:21:37 -0400 |
| commit | 5be5a2df40f005ea7fb7e280e87bbbcfcf1c2fc0 (patch) | |
| tree | 6aa782488f47684f803657acca74aa42b1303e59 /net/bridge/br_private.h | |
| parent | 3df6bf45ec008942f16f1814123c4bdebcf50741 (diff) | |
| download | lwn-5be5a2df40f005ea7fb7e280e87bbbcfcf1c2fc0.tar.gz lwn-5be5a2df40f005ea7fb7e280e87bbbcfcf1c2fc0.zip | |
bridge: Add filtering support for default_pvid
Currently when vlan filtering is turned on on the bridge, the bridge
will drop all traffic untill the user configures the filter. This
isn't very nice for ports that don't care about vlans and just
want untagged traffic.
A concept of a default_pvid was recently introduced. This patch
adds filtering support for default_pvid. Now, ports that don't
care about vlans and don't define there own filter will belong
to the VLAN of the default_pvid and continue to receive untagged
traffic.
This filtering can be disabled by setting default_pvid to 0.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index f671561b3053..d8cbaa694227 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -605,12 +605,13 @@ bool br_vlan_find(struct net_bridge *br, u16 vid); void br_recalculate_fwd_mask(struct net_bridge *br); int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); int br_vlan_set_proto(struct net_bridge *br, unsigned long val); -void br_vlan_init(struct net_bridge *br); +int br_vlan_init(struct net_bridge *br); int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); void nbp_vlan_flush(struct net_bridge_port *port); bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); +int nbp_vlan_init(struct net_bridge_port *port); static inline struct net_port_vlans *br_get_vlan_info( const struct net_bridge *br) @@ -643,6 +644,9 @@ static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) static inline u16 br_get_pvid(const struct net_port_vlans *v) { + if (!v) + return 0; + smp_rmb(); return v->pvid; } @@ -703,8 +707,9 @@ static inline void br_recalculate_fwd_mask(struct net_bridge *br) { } -static inline void br_vlan_init(struct net_bridge *br) +static inline int br_vlan_init(struct net_bridge *br) { + return 0; } static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) @@ -737,6 +742,11 @@ static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) return false; } +static inline int nbp_vlan_init(struct net_bridge_port *port) +{ + return 0; +} + static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) { return 0; |