diff options
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index 68b893ea8c3a..c236c0e43984 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -149,6 +149,39 @@ static ssize_t store_stp_state(struct device *d, static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state, store_stp_state); +static ssize_t show_group_fwd_mask(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct net_bridge *br = to_bridge(d); + return sprintf(buf, "%#x\n", br->group_fwd_mask); +} + + +static ssize_t store_group_fwd_mask(struct device *d, + struct device_attribute *attr, const char *buf, + size_t len) +{ + struct net_bridge *br = to_bridge(d); + char *endp; + unsigned long val; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + + if (val & BR_GROUPFWD_RESTRICTED) + return -EINVAL; + + br->group_fwd_mask = val; + + return len; +} +static DEVICE_ATTR(group_fwd_mask, S_IRUGO | S_IWUSR, show_group_fwd_mask, + store_group_fwd_mask); + static ssize_t show_priority(struct device *d, struct device_attribute *attr, char *buf) { @@ -652,6 +685,7 @@ static struct attribute *bridge_attrs[] = { &dev_attr_max_age.attr, &dev_attr_ageing_time.attr, &dev_attr_stp_state.attr, + &dev_attr_group_fwd_mask.attr, &dev_attr_priority.attr, &dev_attr_bridge_id.attr, &dev_attr_root_id.attr, |