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1084 lines
30 KiB
1084 lines
30 KiB
// 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 <[email protected]> |
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*/ |
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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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|
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#include "br_private.h" |
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|
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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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|
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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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/* |
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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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|
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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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|
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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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|
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if (!rtnl_trylock()) |
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return restart_syscall(); |
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|
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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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|
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return err ? err : len; |
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} |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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br_fdb_flush(br); |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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{ |
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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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|
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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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{ |
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return sprintf(buf, "%u\n", RHT_ELASTICITY); |
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} |
|
|
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static int set_elasticity(struct net_bridge *br, unsigned long val, |
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struct netlink_ext_ack *extack) |
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{ |
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/* 16 is RHT_ELASTICITY */ |
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NL_SET_ERR_MSG_MOD(extack, |
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"the hash_elasticity option has been deprecated and is always 16"); |
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return 0; |
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} |
|
|
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static ssize_t hash_elasticity_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_elasticity); |
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} |
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static DEVICE_ATTR_RW(hash_elasticity); |
|
|
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static ssize_t hash_max_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, "%u\n", br->hash_max); |
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} |
|
|
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static int set_hash_max(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->hash_max = val; |
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return 0; |
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} |
|
|
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static ssize_t hash_max_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_hash_max); |
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} |
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static DEVICE_ATTR_RW(hash_max); |
|
|
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static ssize_t multicast_igmp_version_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, "%u\n", br->multicast_ctx.multicast_igmp_version); |
|
} |
|
|
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static int set_multicast_igmp_version(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_igmp_version(&br->multicast_ctx, val); |
|
} |
|
|
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static ssize_t multicast_igmp_version_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_igmp_version); |
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} |
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static DEVICE_ATTR_RW(multicast_igmp_version); |
|
|
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static ssize_t multicast_last_member_count_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, "%u\n", br->multicast_ctx.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, |
|
struct netlink_ext_ack *extack) |
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{ |
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br->multicast_ctx.multicast_last_member_count = val; |
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return 0; |
|
} |
|
|
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static ssize_t multicast_last_member_count_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_last_member_count); |
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} |
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static DEVICE_ATTR_RW(multicast_last_member_count); |
|
|
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static ssize_t multicast_startup_query_count_show( |
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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); |
|
}
|
|
|