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authorHerbert Xu <herbert@gondor.apana.org.au>2010-02-27 22:41:49 +0300
committerDavid S. Miller <davem@davemloft.net>2010-02-28 11:49:45 +0300
commit0909e11758bd28848aeb6646e021ec1e031a3f0f (patch)
treea4ae57a59c6ff52f013bbfc29594715c383300d6 /net/bridge/br_sysfs_br.c
parentc4fcb78cf8ae55667809e54e54872a21025dd073 (diff)
downloadlinux-0909e11758bd28848aeb6646e021ec1e031a3f0f.tar.xz
bridge: Add multicast_router sysfs entries
This patch allows the user to forcibly enable/disable ports as having multicast routers attached. A port with a multicast router will receive all multicast traffic. The value 0 disables it completely. The default is 1 which lets the system automatically detect the presence of routers (currently this is limited to picking up queries), and 2 means that the port will always receive all multicast traffic. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
-rw-r--r--net/bridge/br_sysfs_br.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index bee4f300d0c8..cb742016db21 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -345,6 +345,24 @@ static ssize_t store_flush(struct device *d,
}
static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush);
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+static ssize_t show_multicast_router(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct net_bridge *br = to_bridge(d);
+ return sprintf(buf, "%d\n", br->multicast_router);
+}
+
+static ssize_t store_multicast_router(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return store_bridge_parm(d, buf, len, br_multicast_set_router);
+}
+static DEVICE_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router,
+ store_multicast_router);
+#endif
+
static struct attribute *bridge_attrs[] = {
&dev_attr_forward_delay.attr,
&dev_attr_hello_time.attr,
@@ -364,6 +382,9 @@ static struct attribute *bridge_attrs[] = {
&dev_attr_gc_timer.attr,
&dev_attr_group_addr.attr,
&dev_attr_flush.attr,
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ &dev_attr_multicast_router.attr,
+#endif
NULL
};