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authorStephen Hemminger <shemminger@linux-foundation.org>2007-04-09 23:57:54 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 09:28:47 +0400
commit9cf637473c8535b5abe27fee79254c2d552e042a (patch)
tree98d73249a2a75eaa23bbbc6c235eca0182f52a3d /net/bridge/br_sysfs_br.c
parent3f890923182aeebc572f3818dd51c9014827e0ec (diff)
downloadlinux-9cf637473c8535b5abe27fee79254c2d552e042a.tar.xz
bridge: add sysfs hook to flush forwarding table
The RSTP daemon needs to be able to flush all dynamic forwarding entries in the case of topology change. This is a temporary interface. It will change to a netlink interface before RSTP daemon is officially released. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
-rw-r--r--net/bridge/br_sysfs_br.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 01a22ad0cc75..6cc5cfe665cd 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -309,6 +309,19 @@ static ssize_t store_group_addr(struct device *d,
static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR,
show_group_addr, store_group_addr);
+static ssize_t store_flush(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct net_bridge *br = to_bridge(d);
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ br_fdb_flush(br);
+ return len;
+}
+static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush);
static struct attribute *bridge_attrs[] = {
&dev_attr_forward_delay.attr,
@@ -328,6 +341,7 @@ static struct attribute *bridge_attrs[] = {
&dev_attr_topology_change_timer.attr,
&dev_attr_gc_timer.attr,
&dev_attr_group_addr.attr,
+ &dev_attr_flush.attr,
NULL
};