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628ac04a75
The following commands should result in all the dynamic FDB entries
being flushed, but instead all the non-local (non-permanent) entries are
flushed:
# bridge fdb add 00:aa:bb:cc:dd:ee dev dummy1 master static
# bridge fdb add 00:11:22:33:44:55 dev dummy1 master dynamic
# ip link set dev br0 type bridge fdb_flush
# bridge fdb show brport dummy1
00:00:00:00:00:01 master br0 permanent
33:33:00:00:00:01 self permanent
01:00:5e:00:00:01 self permanent
This is because br_fdb_flush() works with FDB flags and not the
corresponding enumerator values. Fix by passing the FDB flag instead.
After the fix:
# bridge fdb add 00:aa:bb:cc:dd:ee dev dummy1 master static
# bridge fdb add 00:11:22:33:44:55 dev dummy1 master dynamic
# ip link set dev br0 type bridge fdb_flush
# bridge fdb show brport dummy1
00:aa:bb:cc:dd:ee master br0 static
00:00:00:00:00:01 master br0 permanent
33:33:00:00:00:01 self permanent
01:00:5e:00:00:01 self permanent
Fixes: 1f78ee14ee
("net: bridge: fdb: add support for fine-grained flushing")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20221101185753.2120691-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1089 lines
30 KiB
C
1089 lines
30 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Sysfs attributes of bridge
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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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#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/etherdevice.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 <linux/sched/signal.h>
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#include "br_private.h"
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/* IMPORTANT: new bridge options must be added with netlink support only
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* please do not add new sysfs entries
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*/
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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 *br, unsigned long val,
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struct netlink_ext_ack *extack))
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{
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struct net_bridge *br = to_bridge(d);
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struct netlink_ext_ack extack = {0};
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unsigned long val;
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int err;
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if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
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return -EPERM;
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err = kstrtoul(buf, 0, &val);
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if (err != 0)
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return err;
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if (!rtnl_trylock())
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return restart_syscall();
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err = (*set)(br, val, &extack);
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if (!err)
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netdev_state_change(br->dev);
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if (extack._msg) {
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if (err)
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br_err(br, "%s\n", extack._msg);
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else
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br_warn(br, "%s\n", extack._msg);
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}
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rtnl_unlock();
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return err ? err : len;
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}
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static ssize_t forward_delay_show(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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struct netlink_ext_ack *extack)
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{
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return br_set_forward_delay(br, val);
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}
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static ssize_t forward_delay_store(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_RW(forward_delay);
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static ssize_t hello_time_show(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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struct netlink_ext_ack *extack)
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{
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return br_set_hello_time(br, val);
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}
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static ssize_t hello_time_store(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_RW(hello_time);
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static ssize_t max_age_show(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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struct netlink_ext_ack *extack)
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{
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return br_set_max_age(br, val);
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}
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static ssize_t max_age_store(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_RW(max_age);
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static ssize_t ageing_time_show(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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struct netlink_ext_ack *extack)
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{
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return br_set_ageing_time(br, val);
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}
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static ssize_t ageing_time_store(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_RW(ageing_time);
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static ssize_t stp_state_show(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 int set_stp_state(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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return br_stp_set_enabled(br, val, extack);
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}
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static ssize_t stp_state_store(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_stp_state);
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}
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static DEVICE_ATTR_RW(stp_state);
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static ssize_t group_fwd_mask_show(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, "%#x\n", br->group_fwd_mask);
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}
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static int set_group_fwd_mask(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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if (val & BR_GROUPFWD_RESTRICTED)
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return -EINVAL;
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br->group_fwd_mask = val;
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return 0;
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}
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static ssize_t group_fwd_mask_store(struct device *d,
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struct device_attribute *attr,
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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_group_fwd_mask);
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}
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static DEVICE_ATTR_RW(group_fwd_mask);
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static ssize_t priority_show(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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struct netlink_ext_ack *extack)
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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 priority_store(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_RW(priority);
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static ssize_t root_id_show(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_RO(root_id);
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static ssize_t bridge_id_show(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_RO(bridge_id);
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static ssize_t root_port_show(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_RO(root_port);
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static ssize_t root_path_cost_show(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_RO(root_path_cost);
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static ssize_t topology_change_show(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_RO(topology_change);
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static ssize_t topology_change_detected_show(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_RO(topology_change_detected);
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static ssize_t hello_timer_show(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_RO(hello_timer);
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static ssize_t tcn_timer_show(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_RO(tcn_timer);
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static ssize_t topology_change_timer_show(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_RO(topology_change_timer);
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static ssize_t gc_timer_show(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_work.timer));
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}
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static DEVICE_ATTR_RO(gc_timer);
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static ssize_t group_addr_show(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, "%pM\n", br->group_addr);
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}
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static ssize_t group_addr_store(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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u8 new_addr[6];
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if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
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return -EPERM;
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if (!mac_pton(buf, new_addr))
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return -EINVAL;
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if (!is_link_local_ether_addr(new_addr))
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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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if (!rtnl_trylock())
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return restart_syscall();
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spin_lock_bh(&br->lock);
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ether_addr_copy(br->group_addr, new_addr);
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spin_unlock_bh(&br->lock);
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br_opt_toggle(br, BROPT_GROUP_ADDR_SET, true);
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br_recalculate_fwd_mask(br);
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netdev_state_change(br->dev);
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rtnl_unlock();
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return len;
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}
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static DEVICE_ATTR_RW(group_addr);
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static int set_flush(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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struct net_bridge_fdb_flush_desc desc = {
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.flags_mask = BIT(BR_FDB_STATIC)
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};
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br_fdb_flush(br, &desc);
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return 0;
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}
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static ssize_t flush_store(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_flush);
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}
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static DEVICE_ATTR_WO(flush);
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static ssize_t no_linklocal_learn_show(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_boolopt_get(br, BR_BOOLOPT_NO_LL_LEARN));
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}
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static int set_no_linklocal_learn(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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return br_boolopt_toggle(br, BR_BOOLOPT_NO_LL_LEARN, !!val, extack);
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}
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static ssize_t no_linklocal_learn_store(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_no_linklocal_learn);
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}
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static DEVICE_ATTR_RW(no_linklocal_learn);
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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static ssize_t multicast_router_show(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_ctx.multicast_router);
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}
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static int set_multicast_router(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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return br_multicast_set_router(&br->multicast_ctx, val);
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}
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static ssize_t multicast_router_store(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_multicast_router);
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}
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static DEVICE_ATTR_RW(multicast_router);
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static ssize_t multicast_snooping_show(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_opt_get(br, BROPT_MULTICAST_ENABLED));
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}
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static ssize_t multicast_snooping_store(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_RW(multicast_snooping);
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static ssize_t multicast_query_use_ifaddr_show(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",
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br_opt_get(br, BROPT_MULTICAST_QUERY_USE_IFADDR));
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}
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static int set_query_use_ifaddr(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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br_opt_toggle(br, BROPT_MULTICAST_QUERY_USE_IFADDR, !!val);
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return 0;
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}
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|
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static ssize_t
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multicast_query_use_ifaddr_store(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_query_use_ifaddr);
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}
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static DEVICE_ATTR_RW(multicast_query_use_ifaddr);
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static ssize_t multicast_querier_show(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_ctx.multicast_querier);
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}
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static int set_multicast_querier(struct net_bridge *br, unsigned long val,
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struct netlink_ext_ack *extack)
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{
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return br_multicast_set_querier(&br->multicast_ctx, val);
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|
}
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static ssize_t multicast_querier_store(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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return store_bridge_parm(d, buf, len, set_multicast_querier);
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}
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static DEVICE_ATTR_RW(multicast_querier);
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static ssize_t hash_elasticity_show(struct device *d,
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struct device_attribute *attr, char *buf)
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|
{
|
|
return sprintf(buf, "%u\n", RHT_ELASTICITY);
|
|
}
|
|
|
|
static int set_elasticity(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
/* 16 is RHT_ELASTICITY */
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"the hash_elasticity option has been deprecated and is always 16");
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t hash_elasticity_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_elasticity);
|
|
}
|
|
static DEVICE_ATTR_RW(hash_elasticity);
|
|
|
|
static ssize_t hash_max_show(struct device *d, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br->hash_max);
|
|
}
|
|
|
|
static int set_hash_max(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->hash_max = val;
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t hash_max_store(struct device *d, struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_hash_max);
|
|
}
|
|
static DEVICE_ATTR_RW(hash_max);
|
|
|
|
static ssize_t multicast_igmp_version_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
|
|
return sprintf(buf, "%u\n", br->multicast_ctx.multicast_igmp_version);
|
|
}
|
|
|
|
static int set_multicast_igmp_version(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return br_multicast_set_igmp_version(&br->multicast_ctx, val);
|
|
}
|
|
|
|
static ssize_t multicast_igmp_version_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_multicast_igmp_version);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_igmp_version);
|
|
|
|
static ssize_t multicast_last_member_count_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br->multicast_ctx.multicast_last_member_count);
|
|
}
|
|
|
|
static int set_last_member_count(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_last_member_count = val;
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_last_member_count_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_last_member_count);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_last_member_count);
|
|
|
|
static ssize_t multicast_startup_query_count_show(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br->multicast_ctx.multicast_startup_query_count);
|
|
}
|
|
|
|
static int set_startup_query_count(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_startup_query_count = val;
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_startup_query_count_store(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_startup_query_count);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_startup_query_count);
|
|
|
|
static ssize_t multicast_last_member_interval_show(
|
|
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_ctx.multicast_last_member_interval));
|
|
}
|
|
|
|
static int set_last_member_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_last_member_interval_store(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_last_member_interval);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_last_member_interval);
|
|
|
|
static ssize_t multicast_membership_interval_show(
|
|
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_ctx.multicast_membership_interval));
|
|
}
|
|
|
|
static int set_membership_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_membership_interval_store(
|
|
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_RW(multicast_membership_interval);
|
|
|
|
static ssize_t multicast_querier_interval_show(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_ctx.multicast_querier_interval));
|
|
}
|
|
|
|
static int set_querier_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_querier_interval_store(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_RW(multicast_querier_interval);
|
|
|
|
static ssize_t multicast_query_interval_show(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_ctx.multicast_query_interval));
|
|
}
|
|
|
|
static int set_query_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_multicast_set_query_intvl(&br->multicast_ctx, val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_query_interval_store(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_RW(multicast_query_interval);
|
|
|
|
static ssize_t multicast_query_response_interval_show(
|
|
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_ctx.multicast_query_response_interval));
|
|
}
|
|
|
|
static int set_query_response_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br->multicast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_query_response_interval_store(
|
|
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_RW(multicast_query_response_interval);
|
|
|
|
static ssize_t multicast_startup_query_interval_show(
|
|
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_ctx.multicast_startup_query_interval));
|
|
}
|
|
|
|
static int set_startup_query_interval(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_startup_query_interval_store(
|
|
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_RW(multicast_startup_query_interval);
|
|
|
|
static ssize_t multicast_stats_enabled_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
|
|
return sprintf(buf, "%d\n",
|
|
br_opt_get(br, BROPT_MULTICAST_STATS_ENABLED));
|
|
}
|
|
|
|
static int set_stats_enabled(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_opt_toggle(br, BROPT_MULTICAST_STATS_ENABLED, !!val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t multicast_stats_enabled_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_stats_enabled);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_stats_enabled);
|
|
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
static ssize_t multicast_mld_version_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
|
|
return sprintf(buf, "%u\n", br->multicast_ctx.multicast_mld_version);
|
|
}
|
|
|
|
static int set_multicast_mld_version(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return br_multicast_set_mld_version(&br->multicast_ctx, val);
|
|
}
|
|
|
|
static ssize_t multicast_mld_version_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_multicast_mld_version);
|
|
}
|
|
static DEVICE_ATTR_RW(multicast_mld_version);
|
|
#endif
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
|
|
static ssize_t nf_call_iptables_show(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br_opt_get(br, BROPT_NF_CALL_IPTABLES));
|
|
}
|
|
|
|
static int set_nf_call_iptables(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_opt_toggle(br, BROPT_NF_CALL_IPTABLES, !!val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t nf_call_iptables_store(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_nf_call_iptables);
|
|
}
|
|
static DEVICE_ATTR_RW(nf_call_iptables);
|
|
|
|
static ssize_t nf_call_ip6tables_show(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br_opt_get(br, BROPT_NF_CALL_IP6TABLES));
|
|
}
|
|
|
|
static int set_nf_call_ip6tables(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_opt_toggle(br, BROPT_NF_CALL_IP6TABLES, !!val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t nf_call_ip6tables_store(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_nf_call_ip6tables);
|
|
}
|
|
static DEVICE_ATTR_RW(nf_call_ip6tables);
|
|
|
|
static ssize_t nf_call_arptables_show(
|
|
struct device *d, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br_opt_get(br, BROPT_NF_CALL_ARPTABLES));
|
|
}
|
|
|
|
static int set_nf_call_arptables(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
br_opt_toggle(br, BROPT_NF_CALL_ARPTABLES, !!val);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t nf_call_arptables_store(
|
|
struct device *d, struct device_attribute *attr, const char *buf,
|
|
size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_nf_call_arptables);
|
|
}
|
|
static DEVICE_ATTR_RW(nf_call_arptables);
|
|
#endif
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
static ssize_t vlan_filtering_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%d\n", br_opt_get(br, BROPT_VLAN_ENABLED));
|
|
}
|
|
|
|
static ssize_t vlan_filtering_store(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_RW(vlan_filtering);
|
|
|
|
static ssize_t vlan_protocol_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%#06x\n", ntohs(br->vlan_proto));
|
|
}
|
|
|
|
static ssize_t vlan_protocol_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, br_vlan_set_proto);
|
|
}
|
|
static DEVICE_ATTR_RW(vlan_protocol);
|
|
|
|
static ssize_t default_pvid_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%d\n", br->default_pvid);
|
|
}
|
|
|
|
static ssize_t default_pvid_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, br_vlan_set_default_pvid);
|
|
}
|
|
static DEVICE_ATTR_RW(default_pvid);
|
|
|
|
static ssize_t vlan_stats_enabled_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br_opt_get(br, BROPT_VLAN_STATS_ENABLED));
|
|
}
|
|
|
|
static int set_vlan_stats_enabled(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return br_vlan_set_stats(br, val);
|
|
}
|
|
|
|
static ssize_t vlan_stats_enabled_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_vlan_stats_enabled);
|
|
}
|
|
static DEVICE_ATTR_RW(vlan_stats_enabled);
|
|
|
|
static ssize_t vlan_stats_per_port_show(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct net_bridge *br = to_bridge(d);
|
|
return sprintf(buf, "%u\n", br_opt_get(br, BROPT_VLAN_STATS_PER_PORT));
|
|
}
|
|
|
|
static int set_vlan_stats_per_port(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return br_vlan_set_stats_per_port(br, val);
|
|
}
|
|
|
|
static ssize_t vlan_stats_per_port_store(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
return store_bridge_parm(d, buf, len, set_vlan_stats_per_port);
|
|
}
|
|
static DEVICE_ATTR_RW(vlan_stats_per_port);
|
|
#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_group_fwd_mask.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,
|
|
&dev_attr_no_linklocal_learn.attr,
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
&dev_attr_multicast_router.attr,
|
|
&dev_attr_multicast_snooping.attr,
|
|
&dev_attr_multicast_querier.attr,
|
|
&dev_attr_multicast_query_use_ifaddr.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,
|
|
&dev_attr_multicast_stats_enabled.attr,
|
|
&dev_attr_multicast_igmp_version.attr,
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
&dev_attr_multicast_mld_version.attr,
|
|
#endif
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
|
|
&dev_attr_nf_call_iptables.attr,
|
|
&dev_attr_nf_call_ip6tables.attr,
|
|
&dev_attr_nf_call_arptables.attr,
|
|
#endif
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
&dev_attr_vlan_filtering.attr,
|
|
&dev_attr_vlan_protocol.attr,
|
|
&dev_attr_default_pvid.attr,
|
|
&dev_attr_vlan_stats_enabled.attr,
|
|
&dev_attr_vlan_stats_per_port.attr,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
static const 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 = kobj_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 = 0444, },
|
|
.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);
|
|
err = -ENOMEM;
|
|
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);
|
|
}
|