746 lines
21 KiB
C
746 lines
21 KiB
C
/*
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* Sysfs attributes of bridge ports
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* Linux ethernet bridge
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*
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* Authors:
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* Stephen Hemminger <shemminger@osdl.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/capability.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <linux/if_bridge.h>
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#include <linux/rtnetlink.h>
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#include <linux/spinlock.h>
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#include <linux/times.h>
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#include "br_private.h"
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#define to_dev(obj) container_of(obj, struct device, kobj)
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#define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd)))
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/*
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* Common code for storing bridge parameters.
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*/
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static ssize_t store_bridge_parm(struct device *d,
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const char *buf, size_t len,
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int (*set)(struct net_bridge *, unsigned long))
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{
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struct net_bridge *br = to_bridge(d);
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char *endp;
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unsigned long val;
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int err;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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val = simple_strtoul(buf, &endp, 0);
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if (endp == buf)
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return -EINVAL;
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spin_lock_bh(&br->lock);
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err = (*set)(br, val);
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spin_unlock_bh(&br->lock);
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return err ? err : len;
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}
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static ssize_t show_forward_delay(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay));
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}
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static int set_forward_delay(struct net_bridge *br, unsigned long val)
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{
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unsigned long delay = clock_t_to_jiffies(val);
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br->forward_delay = delay;
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if (br_is_root_bridge(br))
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br->bridge_forward_delay = delay;
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return 0;
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}
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static ssize_t store_forward_delay(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_forward_delay);
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}
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static DEVICE_ATTR(forward_delay, S_IRUGO | S_IWUSR,
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show_forward_delay, store_forward_delay);
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static ssize_t show_hello_time(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "%lu\n",
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jiffies_to_clock_t(to_bridge(d)->hello_time));
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}
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static int set_hello_time(struct net_bridge *br, unsigned long val)
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{
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unsigned long t = clock_t_to_jiffies(val);
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if (t < HZ)
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return -EINVAL;
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br->hello_time = t;
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if (br_is_root_bridge(br))
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br->bridge_hello_time = t;
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return 0;
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}
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static ssize_t store_hello_time(struct device *d,
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struct device_attribute *attr, const char *buf,
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size_t len)
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{
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return store_bridge_parm(d, buf, len, set_hello_time);
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}
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static DEVICE_ATTR(hello_time, S_IRUGO | S_IWUSR, show_hello_time,
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store_hello_time);
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static ssize_t show_max_age(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "%lu\n",
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jiffies_to_clock_t(to_bridge(d)->max_age));
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}
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static int set_max_age(struct net_bridge *br, unsigned long val)
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{
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unsigned long t = clock_t_to_jiffies(val);
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br->max_age = t;
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if (br_is_root_bridge(br))
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br->bridge_max_age = t;
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return 0;
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}
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static ssize_t store_max_age(struct device *d, struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_max_age);
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}
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static DEVICE_ATTR(max_age, S_IRUGO | S_IWUSR, show_max_age, store_max_age);
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static ssize_t show_ageing_time(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time));
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}
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static int set_ageing_time(struct net_bridge *br, unsigned long val)
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{
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br->ageing_time = clock_t_to_jiffies(val);
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return 0;
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}
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static ssize_t store_ageing_time(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_ageing_time);
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}
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static DEVICE_ATTR(ageing_time, S_IRUGO | S_IWUSR, show_ageing_time,
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store_ageing_time);
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static ssize_t show_stp_state(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%d\n", br->stp_enabled);
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}
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static ssize_t store_stp_state(struct device *d,
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struct device_attribute *attr, const char *buf,
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size_t len)
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{
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struct net_bridge *br = to_bridge(d);
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char *endp;
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unsigned long val;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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val = simple_strtoul(buf, &endp, 0);
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if (endp == buf)
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return -EINVAL;
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if (!rtnl_trylock())
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return restart_syscall();
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br_stp_set_enabled(br, val);
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rtnl_unlock();
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return len;
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}
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static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state,
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store_stp_state);
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static ssize_t show_priority(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%d\n",
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(br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]);
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}
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static int set_priority(struct net_bridge *br, unsigned long val)
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{
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br_stp_set_bridge_priority(br, (u16) val);
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return 0;
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}
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static ssize_t store_priority(struct device *d, struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_priority);
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}
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static DEVICE_ATTR(priority, S_IRUGO | S_IWUSR, show_priority, store_priority);
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static ssize_t show_root_id(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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return br_show_bridge_id(buf, &to_bridge(d)->designated_root);
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}
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static DEVICE_ATTR(root_id, S_IRUGO, show_root_id, NULL);
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static ssize_t show_bridge_id(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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return br_show_bridge_id(buf, &to_bridge(d)->bridge_id);
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}
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static DEVICE_ATTR(bridge_id, S_IRUGO, show_bridge_id, NULL);
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static ssize_t show_root_port(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "%d\n", to_bridge(d)->root_port);
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}
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static DEVICE_ATTR(root_port, S_IRUGO, show_root_port, NULL);
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static ssize_t show_root_path_cost(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost);
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}
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static DEVICE_ATTR(root_path_cost, S_IRUGO, show_root_path_cost, NULL);
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static ssize_t show_topology_change(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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return sprintf(buf, "%d\n", to_bridge(d)->topology_change);
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}
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static DEVICE_ATTR(topology_change, S_IRUGO, show_topology_change, NULL);
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static ssize_t show_topology_change_detected(struct device *d,
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struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%d\n", br->topology_change_detected);
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}
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static DEVICE_ATTR(topology_change_detected, S_IRUGO,
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show_topology_change_detected, NULL);
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static ssize_t show_hello_timer(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer));
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}
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static DEVICE_ATTR(hello_timer, S_IRUGO, show_hello_timer, NULL);
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static ssize_t show_tcn_timer(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer));
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}
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static DEVICE_ATTR(tcn_timer, S_IRUGO, show_tcn_timer, NULL);
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static ssize_t show_topology_change_timer(struct device *d,
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struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer));
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}
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static DEVICE_ATTR(topology_change_timer, S_IRUGO, show_topology_change_timer,
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NULL);
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static ssize_t show_gc_timer(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%ld\n", br_timer_value(&br->gc_timer));
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}
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static DEVICE_ATTR(gc_timer, S_IRUGO, show_gc_timer, NULL);
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static ssize_t show_group_addr(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%x:%x:%x:%x:%x:%x\n",
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br->group_addr[0], br->group_addr[1],
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br->group_addr[2], br->group_addr[3],
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br->group_addr[4], br->group_addr[5]);
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}
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static ssize_t store_group_addr(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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struct net_bridge *br = to_bridge(d);
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unsigned new_addr[6];
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int i;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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if (sscanf(buf, "%x:%x:%x:%x:%x:%x",
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&new_addr[0], &new_addr[1], &new_addr[2],
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&new_addr[3], &new_addr[4], &new_addr[5]) != 6)
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return -EINVAL;
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/* Must be 01:80:c2:00:00:0X */
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for (i = 0; i < 5; i++)
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if (new_addr[i] != br_group_address[i])
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return -EINVAL;
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if (new_addr[5] & ~0xf)
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return -EINVAL;
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if (new_addr[5] == 1 || /* 802.3x Pause address */
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new_addr[5] == 2 || /* 802.3ad Slow protocols */
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new_addr[5] == 3) /* 802.1X PAE address */
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return -EINVAL;
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spin_lock_bh(&br->lock);
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for (i = 0; i < 6; i++)
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br->group_addr[i] = new_addr[i];
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spin_unlock_bh(&br->lock);
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return len;
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}
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static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR,
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show_group_addr, store_group_addr);
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static ssize_t store_flush(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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struct net_bridge *br = to_bridge(d);
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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br_fdb_flush(br);
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return len;
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}
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static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush);
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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static ssize_t show_multicast_router(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%d\n", br->multicast_router);
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}
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static ssize_t store_multicast_router(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, br_multicast_set_router);
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}
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static DEVICE_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router,
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store_multicast_router);
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static ssize_t show_multicast_snooping(struct device *d,
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struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%d\n", !br->multicast_disabled);
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}
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static ssize_t store_multicast_snooping(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, br_multicast_toggle);
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}
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static DEVICE_ATTR(multicast_snooping, S_IRUGO | S_IWUSR,
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show_multicast_snooping, store_multicast_snooping);
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static ssize_t show_hash_elasticity(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%u\n", br->hash_elasticity);
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}
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static int set_elasticity(struct net_bridge *br, unsigned long val)
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{
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br->hash_elasticity = val;
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return 0;
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}
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static ssize_t store_hash_elasticity(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_elasticity);
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}
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static DEVICE_ATTR(hash_elasticity, S_IRUGO | S_IWUSR, show_hash_elasticity,
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store_hash_elasticity);
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static ssize_t show_hash_max(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%u\n", br->hash_max);
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}
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static ssize_t store_hash_max(struct device *d, struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, br_multicast_set_hash_max);
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}
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static DEVICE_ATTR(hash_max, S_IRUGO | S_IWUSR, show_hash_max,
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store_hash_max);
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static ssize_t show_multicast_last_member_count(struct device *d,
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struct device_attribute *attr,
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char *buf)
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{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%u\n", br->multicast_last_member_count);
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}
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static int set_last_member_count(struct net_bridge *br, unsigned long val)
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{
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br->multicast_last_member_count = val;
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return 0;
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}
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static ssize_t store_multicast_last_member_count(struct device *d,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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return store_bridge_parm(d, buf, len, set_last_member_count);
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}
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static DEVICE_ATTR(multicast_last_member_count, S_IRUGO | S_IWUSR,
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show_multicast_last_member_count,
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store_multicast_last_member_count);
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static ssize_t show_multicast_startup_query_count(
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struct device *d, struct device_attribute *attr, char *buf)
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|
{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%u\n", br->multicast_startup_query_count);
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}
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|
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static int set_startup_query_count(struct net_bridge *br, unsigned long val)
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{
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br->multicast_startup_query_count = val;
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return 0;
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}
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|
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static ssize_t store_multicast_startup_query_count(
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struct device *d, struct device_attribute *attr, const char *buf,
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size_t len)
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{
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return store_bridge_parm(d, buf, len, set_startup_query_count);
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}
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static DEVICE_ATTR(multicast_startup_query_count, S_IRUGO | S_IWUSR,
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show_multicast_startup_query_count,
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store_multicast_startup_query_count);
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|
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static ssize_t show_multicast_last_member_interval(
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struct device *d, struct device_attribute *attr, char *buf)
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|
{
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struct net_bridge *br = to_bridge(d);
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return sprintf(buf, "%lu\n",
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jiffies_to_clock_t(br->multicast_last_member_interval));
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}
|
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|
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static int set_last_member_interval(struct net_bridge *br, unsigned long val)
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{
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br->multicast_last_member_interval = clock_t_to_jiffies(val);
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return 0;
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}
|
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|
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static ssize_t store_multicast_last_member_interval(
|
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struct device *d, struct device_attribute *attr, const char *buf,
|
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size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_last_member_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_last_member_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_last_member_interval,
|
|
store_multicast_last_member_interval);
|
|
|
|
static ssize_t show_multicast_membership_interval(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%lu\n",
|
|
jiffies_to_clock_t(br->multicast_membership_interval));
|
|
}
|
|
|
|
static int set_membership_interval(struct net_bridge *br, unsigned long val)
|
|
{
|
|
br->multicast_membership_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t store_multicast_membership_interval(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_membership_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_membership_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_membership_interval,
|
|
store_multicast_membership_interval);
|
|
|
|
static ssize_t show_multicast_querier_interval(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%lu\n",
|
|
jiffies_to_clock_t(br->multicast_querier_interval));
|
|
}
|
|
|
|
static int set_querier_interval(struct net_bridge *br, unsigned long val)
|
|
{
|
|
br->multicast_querier_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t store_multicast_querier_interval(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_querier_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_querier_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_querier_interval,
|
|
store_multicast_querier_interval);
|
|
|
|
static ssize_t show_multicast_query_interval(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%lu\n",
|
|
jiffies_to_clock_t(br->multicast_query_interval));
|
|
}
|
|
|
|
static int set_query_interval(struct net_bridge *br, unsigned long val)
|
|
{
|
|
br->multicast_query_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t store_multicast_query_interval(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_query_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_query_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_query_interval,
|
|
store_multicast_query_interval);
|
|
|
|
static ssize_t show_multicast_query_response_interval(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(
|
|
buf, "%lu\n",
|
|
jiffies_to_clock_t(br->multicast_query_response_interval));
|
|
}
|
|
|
|
static int set_query_response_interval(struct net_bridge *br, unsigned long val)
|
|
{
|
|
br->multicast_query_response_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t store_multicast_query_response_interval(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_query_response_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_query_response_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_query_response_interval,
|
|
store_multicast_query_response_interval);
|
|
|
|
static ssize_t show_multicast_startup_query_interval(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(
|
|
buf, "%lu\n",
|
|
jiffies_to_clock_t(br->multicast_startup_query_interval));
|
|
}
|
|
|
|
static int set_startup_query_interval(struct net_bridge *br, unsigned long val)
|
|
{
|
|
br->multicast_startup_query_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t store_multicast_startup_query_interval(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_startup_query_interval);
|
|
}
|
|
static DEVICE_ATTR(multicast_startup_query_interval, S_IRUGO | S_IWUSR,
|
|
show_multicast_startup_query_interval,
|
|
store_multicast_startup_query_interval);
|
|
#endif
|
|
|
|
static struct attribute *bridge_attrs[] = {
|
|
&dev_attr_forward_delay.attr,
|
|
&dev_attr_hello_time.attr,
|
|
&dev_attr_max_age.attr,
|
|
&dev_attr_ageing_time.attr,
|
|
&dev_attr_stp_state.attr,
|
|
&dev_attr_priority.attr,
|
|
&dev_attr_bridge_id.attr,
|
|
&dev_attr_root_id.attr,
|
|
&dev_attr_root_path_cost.attr,
|
|
&dev_attr_root_port.attr,
|
|
&dev_attr_topology_change.attr,
|
|
&dev_attr_topology_change_detected.attr,
|
|
&dev_attr_hello_timer.attr,
|
|
&dev_attr_tcn_timer.attr,
|
|
&dev_attr_topology_change_timer.attr,
|
|
&dev_attr_gc_timer.attr,
|
|
&dev_attr_group_addr.attr,
|
|
&dev_attr_flush.attr,
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
&dev_attr_multicast_router.attr,
|
|
&dev_attr_multicast_snooping.attr,
|
|
&dev_attr_hash_elasticity.attr,
|
|
&dev_attr_hash_max.attr,
|
|
&dev_attr_multicast_last_member_count.attr,
|
|
&dev_attr_multicast_startup_query_count.attr,
|
|
&dev_attr_multicast_last_member_interval.attr,
|
|
&dev_attr_multicast_membership_interval.attr,
|
|
&dev_attr_multicast_querier_interval.attr,
|
|
&dev_attr_multicast_query_interval.attr,
|
|
&dev_attr_multicast_query_response_interval.attr,
|
|
&dev_attr_multicast_startup_query_interval.attr,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group bridge_group = {
|
|
.name = SYSFS_BRIDGE_ATTR,
|
|
.attrs = bridge_attrs,
|
|
};
|
|
|
|
/*
|
|
* Export the forwarding information table as a binary file
|
|
* The records are struct __fdb_entry.
|
|
*
|
|
* Returns the number of bytes read.
|
|
*/
|
|
static ssize_t brforward_read(struct file *filp, struct kobject *kobj,
|
|
struct bin_attribute *bin_attr,
|
|
char *buf, loff_t off, size_t count)
|
|
{
|
|
struct device *dev = to_dev(kobj);
|
|
struct net_bridge *br = to_bridge(dev);
|
|
int n;
|
|
|
|
/* must read whole records */
|
|
if (off % sizeof(struct __fdb_entry) != 0)
|
|
return -EINVAL;
|
|
|
|
n = br_fdb_fillbuf(br, buf,
|
|
count / sizeof(struct __fdb_entry),
|
|
off / sizeof(struct __fdb_entry));
|
|
|
|
if (n > 0)
|
|
n *= sizeof(struct __fdb_entry);
|
|
|
|
return n;
|
|
}
|
|
|
|
static struct bin_attribute bridge_forward = {
|
|
.attr = { .name = SYSFS_BRIDGE_FDB,
|
|
.mode = S_IRUGO, },
|
|
.read = brforward_read,
|
|
};
|
|
|
|
/*
|
|
* Add entries in sysfs onto the existing network class device
|
|
* for the bridge.
|
|
* Adds a attribute group "bridge" containing tuning parameters.
|
|
* Binary attribute containing the forward table
|
|
* Sub directory to hold links to interfaces.
|
|
*
|
|
* Note: the ifobj exists only to be a subdirectory
|
|
* to hold links. The ifobj exists in same data structure
|
|
* as it's parent the bridge so reference counting works.
|
|
*/
|
|
int br_sysfs_addbr(struct net_device *dev)
|
|
{
|
|
struct kobject *brobj = &dev->dev.kobj;
|
|
struct net_bridge *br = netdev_priv(dev);
|
|
int err;
|
|
|
|
err = sysfs_create_group(brobj, &bridge_group);
|
|
if (err) {
|
|
pr_info("%s: can't create group %s/%s\n",
|
|
__func__, dev->name, bridge_group.name);
|
|
goto out1;
|
|
}
|
|
|
|
err = sysfs_create_bin_file(brobj, &bridge_forward);
|
|
if (err) {
|
|
pr_info("%s: can't create attribute file %s/%s\n",
|
|
__func__, dev->name, bridge_forward.attr.name);
|
|
goto out2;
|
|
}
|
|
|
|
br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj);
|
|
if (!br->ifobj) {
|
|
pr_info("%s: can't add kobject (directory) %s/%s\n",
|
|
__func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR);
|
|
goto out3;
|
|
}
|
|
return 0;
|
|
out3:
|
|
sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward);
|
|
out2:
|
|
sysfs_remove_group(&dev->dev.kobj, &bridge_group);
|
|
out1:
|
|
return err;
|
|
|
|
}
|
|
|
|
void br_sysfs_delbr(struct net_device *dev)
|
|
{
|
|
struct kobject *kobj = &dev->dev.kobj;
|
|
struct net_bridge *br = netdev_priv(dev);
|
|
|
|
kobject_put(br->ifobj);
|
|
sysfs_remove_bin_file(kobj, &bridge_forward);
|
|
sysfs_remove_group(kobj, &bridge_group);
|
|
}
|