From 243a2e63f5f47763b802e9dee8dbf1611a1c1322 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Wed, 13 Feb 2013 12:00:09 +0000 Subject: bridge: Add vlan filtering infrastructure Adds an optional infrustructure component to bridge that would allow native vlan filtering in the bridge. Each bridge port (as well as the bridge device) now get a VLAN bitmap. Each bit in the bitmap is associated with a vlan id. This way if the bit corresponding to the vid is set in the bitmap that the packet with vid is allowed to enter and exit the port. Write access the bitmap is protected by RTNL and read access protected by RCU. Vlan functionality is disabled by default. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/bridge/br_sysfs_br.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'net/bridge/br_sysfs_br.c') diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index 5913a3a..8baa9c0 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -691,6 +691,24 @@ static ssize_t store_nf_call_arptables( static DEVICE_ATTR(nf_call_arptables, S_IRUGO | S_IWUSR, show_nf_call_arptables, store_nf_call_arptables); #endif +#ifdef CONFIG_BRIDGE_VLAN_FILTERING +static ssize_t show_vlan_filtering(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct net_bridge *br = to_bridge(d); + return sprintf(buf, "%d\n", br->vlan_enabled); +} + +static ssize_t store_vlan_filtering(struct device *d, + struct device_attribute *attr, + const char *buf, size_t len) +{ + return store_bridge_parm(d, buf, len, br_vlan_filter_toggle); +} +static DEVICE_ATTR(vlan_filtering, S_IRUGO | S_IWUSR, + show_vlan_filtering, store_vlan_filtering); +#endif static struct attribute *bridge_attrs[] = { &dev_attr_forward_delay.attr, @@ -732,6 +750,9 @@ static struct attribute *bridge_attrs[] = { &dev_attr_nf_call_ip6tables.attr, &dev_attr_nf_call_arptables.attr, #endif +#ifdef CONFIG_BRIDGE_VLAN_FILTERING + &dev_attr_vlan_filtering.attr, +#endif NULL }; -- cgit v1.1