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![Vincent Bernat](/assets/img/avatar_default.png)
Currently, gratuitous ARP/ND packets are sent every `miimon' milliseconds. This commit allows a user to specify a custom delay through a new option, `peer_notif_delay'. Like for `updelay' and `downdelay', this delay should be a multiple of `miimon' to avoid managing an additional work queue. The configuration logic is copied from `updelay' and `downdelay'. However, the default value cannot be set using a module parameter: Netlink or sysfs should be used to configure this feature. When setting `miimon' to 100 and `peer_notif_delay' to 500, we can observe the 500 ms delay is respected: 20:30:19.354693 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:19.874892 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.394919 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.914963 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 In bond_mii_monitor(), I have tried to keep the lock logic readable. The change is due to the fact we cannot rely on a notification to lower the value of `bond->send_peer_notif' as `NETDEV_NOTIFY_PEERS' is only triggered once every N times, while we need to decrement the counter each time. iproute2 also needs to be updated to be able to specify this new attribute through `ip link'. Signed-off-by: Vincent Bernat <vincent@bernat.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
816 lines
22 KiB
C
816 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/sched/signal.h>
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/netdevice.h>
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#include <linux/inetdevice.h>
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#include <linux/in.h>
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#include <linux/sysfs.h>
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#include <linux/ctype.h>
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#include <linux/inet.h>
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#include <linux/rtnetlink.h>
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#include <linux/etherdevice.h>
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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#include <linux/nsproxy.h>
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#include <net/bonding.h>
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#define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd))))
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/* "show" function for the bond_masters attribute.
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* The class parameter is ignored.
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*/
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static ssize_t bonding_show_bonds(struct class *cls,
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struct class_attribute *attr,
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char *buf)
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{
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struct bond_net *bn =
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container_of(attr, struct bond_net, class_attr_bonding_masters);
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int res = 0;
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struct bonding *bond;
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rtnl_lock();
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list_for_each_entry(bond, &bn->dev_list, bond_list) {
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if (res > (PAGE_SIZE - IFNAMSIZ)) {
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/* not enough space for another interface name */
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if ((PAGE_SIZE - res) > 10)
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res = PAGE_SIZE - 10;
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res += sprintf(buf + res, "++more++ ");
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break;
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}
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res += sprintf(buf + res, "%s ", bond->dev->name);
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}
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if (res)
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buf[res-1] = '\n'; /* eat the leftover space */
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rtnl_unlock();
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return res;
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}
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static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname)
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{
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struct bonding *bond;
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list_for_each_entry(bond, &bn->dev_list, bond_list) {
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if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0)
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return bond->dev;
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}
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return NULL;
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}
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/* "store" function for the bond_masters attribute. This is what
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* creates and deletes entire bonds.
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*
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* The class parameter is ignored.
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*/
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static ssize_t bonding_store_bonds(struct class *cls,
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struct class_attribute *attr,
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const char *buffer, size_t count)
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{
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struct bond_net *bn =
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container_of(attr, struct bond_net, class_attr_bonding_masters);
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char command[IFNAMSIZ + 1] = {0, };
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char *ifname;
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int rv, res = count;
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sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
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ifname = command + 1;
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if ((strlen(command) <= 1) ||
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!dev_valid_name(ifname))
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goto err_no_cmd;
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if (command[0] == '+') {
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pr_info("%s is being created...\n", ifname);
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rv = bond_create(bn->net, ifname);
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if (rv) {
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if (rv == -EEXIST)
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pr_info("%s already exists\n", ifname);
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else
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pr_info("%s creation failed\n", ifname);
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res = rv;
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}
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} else if (command[0] == '-') {
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struct net_device *bond_dev;
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rtnl_lock();
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bond_dev = bond_get_by_name(bn, ifname);
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if (bond_dev) {
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pr_info("%s is being deleted...\n", ifname);
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unregister_netdevice(bond_dev);
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} else {
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pr_err("unable to delete non-existent %s\n", ifname);
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res = -ENODEV;
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}
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rtnl_unlock();
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} else
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goto err_no_cmd;
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/* Always return either count or an error. If you return 0, you'll
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* get called forever, which is bad.
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*/
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return res;
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err_no_cmd:
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pr_err("no command found in bonding_masters - use +ifname or -ifname\n");
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return -EPERM;
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}
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/* class attribute for bond_masters file. This ends up in /sys/class/net */
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static const struct class_attribute class_attr_bonding_masters = {
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.attr = {
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.name = "bonding_masters",
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.mode = 0644,
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},
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.show = bonding_show_bonds,
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.store = bonding_store_bonds,
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};
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/* Generic "store" method for bonding sysfs option setting */
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static ssize_t bonding_sysfs_store_option(struct device *d,
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struct device_attribute *attr,
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const char *buffer, size_t count)
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{
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struct bonding *bond = to_bond(d);
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const struct bond_option *opt;
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char *buffer_clone;
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int ret;
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opt = bond_opt_get_by_name(attr->attr.name);
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if (WARN_ON(!opt))
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return -ENOENT;
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buffer_clone = kstrndup(buffer, count, GFP_KERNEL);
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if (!buffer_clone)
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return -ENOMEM;
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ret = bond_opt_tryset_rtnl(bond, opt->id, buffer_clone);
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if (!ret)
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ret = count;
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kfree(buffer_clone);
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return ret;
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}
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/* Show the slaves in the current bond. */
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static ssize_t bonding_show_slaves(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct bonding *bond = to_bond(d);
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struct list_head *iter;
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struct slave *slave;
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int res = 0;
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if (!rtnl_trylock())
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return restart_syscall();
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bond_for_each_slave(bond, slave, iter) {
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if (res > (PAGE_SIZE - IFNAMSIZ)) {
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/* not enough space for another interface name */
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if ((PAGE_SIZE - res) > 10)
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res = PAGE_SIZE - 10;
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res += sprintf(buf + res, "++more++ ");
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break;
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}
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res += sprintf(buf + res, "%s ", slave->dev->name);
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}
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rtnl_unlock();
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if (res)
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buf[res-1] = '\n'; /* eat the leftover space */
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return res;
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}
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static DEVICE_ATTR(slaves, 0644, bonding_show_slaves,
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bonding_sysfs_store_option);
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/* Show the bonding mode. */
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static ssize_t bonding_show_mode(struct device *d,
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struct device_attribute *attr, char *buf)
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{
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struct bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond));
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return sprintf(buf, "%s %d\n", val->string, BOND_MODE(bond));
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}
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static DEVICE_ATTR(mode, 0644, bonding_show_mode, bonding_sysfs_store_option);
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/* Show the bonding transmit hash method. */
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static ssize_t bonding_show_xmit_hash(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy);
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return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy);
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}
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static DEVICE_ATTR(xmit_hash_policy, 0644,
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bonding_show_xmit_hash, bonding_sysfs_store_option);
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/* Show arp_validate. */
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static ssize_t bonding_show_arp_validate(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE,
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bond->params.arp_validate);
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return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate);
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}
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static DEVICE_ATTR(arp_validate, 0644, bonding_show_arp_validate,
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bonding_sysfs_store_option);
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/* Show arp_all_targets. */
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static ssize_t bonding_show_arp_all_targets(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS,
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bond->params.arp_all_targets);
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return sprintf(buf, "%s %d\n",
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val->string, bond->params.arp_all_targets);
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}
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static DEVICE_ATTR(arp_all_targets, 0644,
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bonding_show_arp_all_targets, bonding_sysfs_store_option);
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/* Show fail_over_mac. */
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static ssize_t bonding_show_fail_over_mac(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
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bond->params.fail_over_mac);
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return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac);
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}
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static DEVICE_ATTR(fail_over_mac, 0644,
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bonding_show_fail_over_mac, bonding_sysfs_store_option);
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/* Show the arp timer interval. */
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static ssize_t bonding_show_arp_interval(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.arp_interval);
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}
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static DEVICE_ATTR(arp_interval, 0644,
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bonding_show_arp_interval, bonding_sysfs_store_option);
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/* Show the arp targets. */
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static ssize_t bonding_show_arp_targets(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 bonding *bond = to_bond(d);
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int i, res = 0;
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for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
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if (bond->params.arp_targets[i])
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res += sprintf(buf + res, "%pI4 ",
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&bond->params.arp_targets[i]);
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}
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if (res)
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buf[res-1] = '\n'; /* eat the leftover space */
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return res;
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}
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static DEVICE_ATTR(arp_ip_target, 0644,
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bonding_show_arp_targets, bonding_sysfs_store_option);
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/* Show the up and down delays. */
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static ssize_t bonding_show_downdelay(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon);
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}
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static DEVICE_ATTR(downdelay, 0644,
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bonding_show_downdelay, bonding_sysfs_store_option);
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static ssize_t bonding_show_updelay(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon);
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}
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static DEVICE_ATTR(updelay, 0644,
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bonding_show_updelay, bonding_sysfs_store_option);
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static ssize_t bonding_show_peer_notif_delay(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n",
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bond->params.peer_notif_delay * bond->params.miimon);
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}
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static DEVICE_ATTR(peer_notif_delay, 0644,
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bonding_show_peer_notif_delay, bonding_sysfs_store_option);
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/* Show the LACP interval. */
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static ssize_t bonding_show_lacp(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast);
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return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast);
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}
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static DEVICE_ATTR(lacp_rate, 0644,
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bonding_show_lacp, bonding_sysfs_store_option);
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static ssize_t bonding_show_min_links(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%u\n", bond->params.min_links);
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}
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static DEVICE_ATTR(min_links, 0644,
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bonding_show_min_links, bonding_sysfs_store_option);
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static ssize_t bonding_show_ad_select(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select);
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return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select);
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}
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static DEVICE_ATTR(ad_select, 0644,
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bonding_show_ad_select, bonding_sysfs_store_option);
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/* Show the number of peer notifications to send after a failover event. */
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static ssize_t bonding_show_num_peer_notif(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.num_peer_notif);
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}
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static DEVICE_ATTR(num_grat_arp, 0644,
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bonding_show_num_peer_notif, bonding_sysfs_store_option);
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static DEVICE_ATTR(num_unsol_na, 0644,
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bonding_show_num_peer_notif, bonding_sysfs_store_option);
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/* Show the MII monitor interval. */
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static ssize_t bonding_show_miimon(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.miimon);
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}
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static DEVICE_ATTR(miimon, 0644,
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bonding_show_miimon, bonding_sysfs_store_option);
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/* Show the primary slave. */
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static ssize_t bonding_show_primary(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 bonding *bond = to_bond(d);
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struct slave *primary;
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int count = 0;
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rcu_read_lock();
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primary = rcu_dereference(bond->primary_slave);
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if (primary)
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count = sprintf(buf, "%s\n", primary->dev->name);
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rcu_read_unlock();
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return count;
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}
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static DEVICE_ATTR(primary, 0644,
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bonding_show_primary, bonding_sysfs_store_option);
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/* Show the primary_reselect flag. */
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static ssize_t bonding_show_primary_reselect(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 bonding *bond = to_bond(d);
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const struct bond_opt_value *val;
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val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
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bond->params.primary_reselect);
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return sprintf(buf, "%s %d\n",
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val->string, bond->params.primary_reselect);
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}
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static DEVICE_ATTR(primary_reselect, 0644,
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bonding_show_primary_reselect, bonding_sysfs_store_option);
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/* Show the use_carrier flag. */
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static ssize_t bonding_show_carrier(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 bonding *bond = to_bond(d);
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return sprintf(buf, "%d\n", bond->params.use_carrier);
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}
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static DEVICE_ATTR(use_carrier, 0644,
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bonding_show_carrier, bonding_sysfs_store_option);
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/* Show currently active_slave. */
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static ssize_t bonding_show_active_slave(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 bonding *bond = to_bond(d);
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struct net_device *slave_dev;
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int count = 0;
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rcu_read_lock();
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slave_dev = bond_option_active_slave_get_rcu(bond);
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if (slave_dev)
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count = sprintf(buf, "%s\n", slave_dev->name);
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rcu_read_unlock();
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return count;
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}
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static DEVICE_ATTR(active_slave, 0644,
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bonding_show_active_slave, bonding_sysfs_store_option);
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/* Show link status of the bond interface. */
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static ssize_t bonding_show_mii_status(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
bool active = netif_carrier_ok(bond->dev);
|
|
|
|
return sprintf(buf, "%s\n", active ? "up" : "down");
|
|
}
|
|
static DEVICE_ATTR(mii_status, 0444, bonding_show_mii_status, NULL);
|
|
|
|
/* Show current 802.3ad aggregator ID. */
|
|
static ssize_t bonding_show_ad_aggregator(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int count = 0;
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD) {
|
|
struct ad_info ad_info;
|
|
count = sprintf(buf, "%d\n",
|
|
bond_3ad_get_active_agg_info(bond, &ad_info)
|
|
? 0 : ad_info.aggregator_id);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(ad_aggregator, 0444, bonding_show_ad_aggregator, NULL);
|
|
|
|
|
|
/* Show number of active 802.3ad ports. */
|
|
static ssize_t bonding_show_ad_num_ports(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int count = 0;
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD) {
|
|
struct ad_info ad_info;
|
|
count = sprintf(buf, "%d\n",
|
|
bond_3ad_get_active_agg_info(bond, &ad_info)
|
|
? 0 : ad_info.ports);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(ad_num_ports, 0444, bonding_show_ad_num_ports, NULL);
|
|
|
|
|
|
/* Show current 802.3ad actor key. */
|
|
static ssize_t bonding_show_ad_actor_key(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int count = 0;
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
|
|
struct ad_info ad_info;
|
|
count = sprintf(buf, "%d\n",
|
|
bond_3ad_get_active_agg_info(bond, &ad_info)
|
|
? 0 : ad_info.actor_key);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(ad_actor_key, 0444, bonding_show_ad_actor_key, NULL);
|
|
|
|
|
|
/* Show current 802.3ad partner key. */
|
|
static ssize_t bonding_show_ad_partner_key(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int count = 0;
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
|
|
struct ad_info ad_info;
|
|
count = sprintf(buf, "%d\n",
|
|
bond_3ad_get_active_agg_info(bond, &ad_info)
|
|
? 0 : ad_info.partner_key);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(ad_partner_key, 0444, bonding_show_ad_partner_key, NULL);
|
|
|
|
|
|
/* Show current 802.3ad partner mac. */
|
|
static ssize_t bonding_show_ad_partner_mac(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int count = 0;
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
|
|
struct ad_info ad_info;
|
|
if (!bond_3ad_get_active_agg_info(bond, &ad_info))
|
|
count = sprintf(buf, "%pM\n", ad_info.partner_system);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(ad_partner_mac, 0444, bonding_show_ad_partner_mac, NULL);
|
|
|
|
/* Show the queue_ids of the slaves in the current bond. */
|
|
static ssize_t bonding_show_queue_id(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
int res = 0;
|
|
|
|
if (!rtnl_trylock())
|
|
return restart_syscall();
|
|
|
|
bond_for_each_slave(bond, slave, iter) {
|
|
if (res > (PAGE_SIZE - IFNAMSIZ - 6)) {
|
|
/* not enough space for another interface_name:queue_id pair */
|
|
if ((PAGE_SIZE - res) > 10)
|
|
res = PAGE_SIZE - 10;
|
|
res += sprintf(buf + res, "++more++ ");
|
|
break;
|
|
}
|
|
res += sprintf(buf + res, "%s:%d ",
|
|
slave->dev->name, slave->queue_id);
|
|
}
|
|
if (res)
|
|
buf[res-1] = '\n'; /* eat the leftover space */
|
|
|
|
rtnl_unlock();
|
|
|
|
return res;
|
|
}
|
|
static DEVICE_ATTR(queue_id, 0644, bonding_show_queue_id,
|
|
bonding_sysfs_store_option);
|
|
|
|
|
|
/* Show the all_slaves_active flag. */
|
|
static ssize_t bonding_show_slaves_active(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
return sprintf(buf, "%d\n", bond->params.all_slaves_active);
|
|
}
|
|
static DEVICE_ATTR(all_slaves_active, 0644,
|
|
bonding_show_slaves_active, bonding_sysfs_store_option);
|
|
|
|
/* Show the number of IGMP membership reports to send on link failure */
|
|
static ssize_t bonding_show_resend_igmp(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
return sprintf(buf, "%d\n", bond->params.resend_igmp);
|
|
}
|
|
static DEVICE_ATTR(resend_igmp, 0644,
|
|
bonding_show_resend_igmp, bonding_sysfs_store_option);
|
|
|
|
|
|
static ssize_t bonding_show_lp_interval(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
return sprintf(buf, "%d\n", bond->params.lp_interval);
|
|
}
|
|
static DEVICE_ATTR(lp_interval, 0644,
|
|
bonding_show_lp_interval, bonding_sysfs_store_option);
|
|
|
|
static ssize_t bonding_show_tlb_dynamic_lb(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
return sprintf(buf, "%d\n", bond->params.tlb_dynamic_lb);
|
|
}
|
|
static DEVICE_ATTR(tlb_dynamic_lb, 0644,
|
|
bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option);
|
|
|
|
static ssize_t bonding_show_packets_per_slave(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
unsigned int packets_per_slave = bond->params.packets_per_slave;
|
|
|
|
return sprintf(buf, "%u\n", packets_per_slave);
|
|
}
|
|
static DEVICE_ATTR(packets_per_slave, 0644,
|
|
bonding_show_packets_per_slave, bonding_sysfs_store_option);
|
|
|
|
static ssize_t bonding_show_ad_actor_sys_prio(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
|
|
return sprintf(buf, "%hu\n", bond->params.ad_actor_sys_prio);
|
|
|
|
return 0;
|
|
}
|
|
static DEVICE_ATTR(ad_actor_sys_prio, 0644,
|
|
bonding_show_ad_actor_sys_prio, bonding_sysfs_store_option);
|
|
|
|
static ssize_t bonding_show_ad_actor_system(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
|
|
return sprintf(buf, "%pM\n", bond->params.ad_actor_system);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static DEVICE_ATTR(ad_actor_system, 0644,
|
|
bonding_show_ad_actor_system, bonding_sysfs_store_option);
|
|
|
|
static ssize_t bonding_show_ad_user_port_key(struct device *d,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct bonding *bond = to_bond(d);
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
|
|
return sprintf(buf, "%hu\n", bond->params.ad_user_port_key);
|
|
|
|
return 0;
|
|
}
|
|
static DEVICE_ATTR(ad_user_port_key, 0644,
|
|
bonding_show_ad_user_port_key, bonding_sysfs_store_option);
|
|
|
|
static struct attribute *per_bond_attrs[] = {
|
|
&dev_attr_slaves.attr,
|
|
&dev_attr_mode.attr,
|
|
&dev_attr_fail_over_mac.attr,
|
|
&dev_attr_arp_validate.attr,
|
|
&dev_attr_arp_all_targets.attr,
|
|
&dev_attr_arp_interval.attr,
|
|
&dev_attr_arp_ip_target.attr,
|
|
&dev_attr_downdelay.attr,
|
|
&dev_attr_updelay.attr,
|
|
&dev_attr_peer_notif_delay.attr,
|
|
&dev_attr_lacp_rate.attr,
|
|
&dev_attr_ad_select.attr,
|
|
&dev_attr_xmit_hash_policy.attr,
|
|
&dev_attr_num_grat_arp.attr,
|
|
&dev_attr_num_unsol_na.attr,
|
|
&dev_attr_miimon.attr,
|
|
&dev_attr_primary.attr,
|
|
&dev_attr_primary_reselect.attr,
|
|
&dev_attr_use_carrier.attr,
|
|
&dev_attr_active_slave.attr,
|
|
&dev_attr_mii_status.attr,
|
|
&dev_attr_ad_aggregator.attr,
|
|
&dev_attr_ad_num_ports.attr,
|
|
&dev_attr_ad_actor_key.attr,
|
|
&dev_attr_ad_partner_key.attr,
|
|
&dev_attr_ad_partner_mac.attr,
|
|
&dev_attr_queue_id.attr,
|
|
&dev_attr_all_slaves_active.attr,
|
|
&dev_attr_resend_igmp.attr,
|
|
&dev_attr_min_links.attr,
|
|
&dev_attr_lp_interval.attr,
|
|
&dev_attr_packets_per_slave.attr,
|
|
&dev_attr_tlb_dynamic_lb.attr,
|
|
&dev_attr_ad_actor_sys_prio.attr,
|
|
&dev_attr_ad_actor_system.attr,
|
|
&dev_attr_ad_user_port_key.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group bonding_group = {
|
|
.name = "bonding",
|
|
.attrs = per_bond_attrs,
|
|
};
|
|
|
|
/* Initialize sysfs. This sets up the bonding_masters file in
|
|
* /sys/class/net.
|
|
*/
|
|
int bond_create_sysfs(struct bond_net *bn)
|
|
{
|
|
int ret;
|
|
|
|
bn->class_attr_bonding_masters = class_attr_bonding_masters;
|
|
sysfs_attr_init(&bn->class_attr_bonding_masters.attr);
|
|
|
|
ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters,
|
|
bn->net);
|
|
/* Permit multiple loads of the module by ignoring failures to
|
|
* create the bonding_masters sysfs file. Bonding devices
|
|
* created by second or subsequent loads of the module will
|
|
* not be listed in, or controllable by, bonding_masters, but
|
|
* will have the usual "bonding" sysfs directory.
|
|
*
|
|
* This is done to preserve backwards compatibility for
|
|
* initscripts/sysconfig, which load bonding multiple times to
|
|
* configure multiple bonding devices.
|
|
*/
|
|
if (ret == -EEXIST) {
|
|
/* Is someone being kinky and naming a device bonding_master? */
|
|
if (__dev_get_by_name(bn->net,
|
|
class_attr_bonding_masters.attr.name))
|
|
pr_err("network device named %s already exists in sysfs\n",
|
|
class_attr_bonding_masters.attr.name);
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
/* Remove /sys/class/net/bonding_masters. */
|
|
void bond_destroy_sysfs(struct bond_net *bn)
|
|
{
|
|
netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net);
|
|
}
|
|
|
|
/* Initialize sysfs for each bond. This sets up and registers
|
|
* the 'bondctl' directory for each individual bond under /sys/class/net.
|
|
*/
|
|
void bond_prepare_sysfs_group(struct bonding *bond)
|
|
{
|
|
bond->dev->sysfs_groups[0] = &bonding_group;
|
|
}
|
|
|