bonding: Remove obsolete source file 'bond_ipv6.c'
This file is now unused and should have been removed by commit
7c89943236
("bonding, ipv4, ipv6, vlan:
Handle NETDEV_BONDING_FAILOVER like NETDEV_NOTIFY_PEERS").
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
d11ead7567
commit
4f5762ec91
|
@ -1,223 +0,0 @@
|
|||
/*
|
||||
* Copyright(c) 2008 Hewlett-Packard Development Company, L.P.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* The full GNU General Public License is included in this distribution in the
|
||||
* file called LICENSE.
|
||||
*
|
||||
*/
|
||||
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/if_vlan.h>
|
||||
#include <net/ipv6.h>
|
||||
#include <net/ndisc.h>
|
||||
#include <net/addrconf.h>
|
||||
#include <net/netns/generic.h>
|
||||
#include "bonding.h"
|
||||
|
||||
/*
|
||||
* Assign bond->master_ipv6 to the next IPv6 address in the list, or
|
||||
* zero it out if there are none.
|
||||
*/
|
||||
static void bond_glean_dev_ipv6(struct net_device *dev, struct in6_addr *addr)
|
||||
{
|
||||
struct inet6_dev *idev;
|
||||
|
||||
if (!dev)
|
||||
return;
|
||||
|
||||
idev = in6_dev_get(dev);
|
||||
if (!idev)
|
||||
return;
|
||||
|
||||
read_lock_bh(&idev->lock);
|
||||
if (!list_empty(&idev->addr_list)) {
|
||||
struct inet6_ifaddr *ifa
|
||||
= list_first_entry(&idev->addr_list,
|
||||
struct inet6_ifaddr, if_list);
|
||||
*addr = ifa->addr;
|
||||
} else
|
||||
ipv6_addr_set(addr, 0, 0, 0, 0);
|
||||
|
||||
read_unlock_bh(&idev->lock);
|
||||
|
||||
in6_dev_put(idev);
|
||||
}
|
||||
|
||||
static void bond_na_send(struct net_device *slave_dev,
|
||||
struct in6_addr *daddr,
|
||||
int router,
|
||||
unsigned short vlan_id)
|
||||
{
|
||||
struct in6_addr mcaddr;
|
||||
struct icmp6hdr icmp6h = {
|
||||
.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT,
|
||||
};
|
||||
struct sk_buff *skb;
|
||||
|
||||
icmp6h.icmp6_router = router;
|
||||
icmp6h.icmp6_solicited = 0;
|
||||
icmp6h.icmp6_override = 1;
|
||||
|
||||
addrconf_addr_solict_mult(daddr, &mcaddr);
|
||||
|
||||
pr_debug("ipv6 na on slave %s: dest %pI6, src %pI6\n",
|
||||
slave_dev->name, &mcaddr, daddr);
|
||||
|
||||
skb = ndisc_build_skb(slave_dev, &mcaddr, daddr, &icmp6h, daddr,
|
||||
ND_OPT_TARGET_LL_ADDR);
|
||||
|
||||
if (!skb) {
|
||||
pr_err("NA packet allocation failed\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (vlan_id) {
|
||||
/* The Ethernet header is not present yet, so it is
|
||||
* too early to insert a VLAN tag. Force use of an
|
||||
* out-of-line tag here and let dev_hard_start_xmit()
|
||||
* insert it if the slave hardware can't.
|
||||
*/
|
||||
skb = __vlan_hwaccel_put_tag(skb, vlan_id);
|
||||
if (!skb) {
|
||||
pr_err("failed to insert VLAN tag\n");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
ndisc_send_skb(skb, slave_dev, NULL, &mcaddr, daddr, &icmp6h);
|
||||
}
|
||||
|
||||
/*
|
||||
* Kick out an unsolicited Neighbor Advertisement for an IPv6 address on
|
||||
* the bonding master. This will help the switch learn our address
|
||||
* if in active-backup mode.
|
||||
*
|
||||
* Caller must hold curr_slave_lock for read or better
|
||||
*/
|
||||
void bond_send_unsolicited_na(struct bonding *bond)
|
||||
{
|
||||
struct slave *slave = bond->curr_active_slave;
|
||||
struct vlan_entry *vlan;
|
||||
struct inet6_dev *idev;
|
||||
int is_router;
|
||||
|
||||
pr_debug("%s: bond %s slave %s\n", bond->dev->name,
|
||||
__func__, slave ? slave->dev->name : "NULL");
|
||||
|
||||
if (!slave || !bond->send_unsol_na ||
|
||||
test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
|
||||
return;
|
||||
|
||||
bond->send_unsol_na--;
|
||||
|
||||
idev = in6_dev_get(bond->dev);
|
||||
if (!idev)
|
||||
return;
|
||||
|
||||
is_router = !!idev->cnf.forwarding;
|
||||
|
||||
in6_dev_put(idev);
|
||||
|
||||
if (!ipv6_addr_any(&bond->master_ipv6))
|
||||
bond_na_send(slave->dev, &bond->master_ipv6, is_router, 0);
|
||||
|
||||
list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
|
||||
if (!ipv6_addr_any(&vlan->vlan_ipv6)) {
|
||||
bond_na_send(slave->dev, &vlan->vlan_ipv6, is_router,
|
||||
vlan->vlan_id);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* bond_inet6addr_event: handle inet6addr notifier chain events.
|
||||
*
|
||||
* We keep track of device IPv6 addresses primarily to use as source
|
||||
* addresses in NS probes.
|
||||
*
|
||||
* We track one IPv6 for the main device (if it has one).
|
||||
*/
|
||||
static int bond_inet6addr_event(struct notifier_block *this,
|
||||
unsigned long event,
|
||||
void *ptr)
|
||||
{
|
||||
struct inet6_ifaddr *ifa = ptr;
|
||||
struct net_device *vlan_dev, *event_dev = ifa->idev->dev;
|
||||
struct bonding *bond;
|
||||
struct vlan_entry *vlan;
|
||||
struct bond_net *bn = net_generic(dev_net(event_dev), bond_net_id);
|
||||
|
||||
list_for_each_entry(bond, &bn->dev_list, bond_list) {
|
||||
if (bond->dev == event_dev) {
|
||||
switch (event) {
|
||||
case NETDEV_UP:
|
||||
if (ipv6_addr_any(&bond->master_ipv6))
|
||||
bond->master_ipv6 = ifa->addr;
|
||||
return NOTIFY_OK;
|
||||
case NETDEV_DOWN:
|
||||
if (ipv6_addr_equal(&bond->master_ipv6,
|
||||
&ifa->addr))
|
||||
bond_glean_dev_ipv6(bond->dev,
|
||||
&bond->master_ipv6);
|
||||
return NOTIFY_OK;
|
||||
default:
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
}
|
||||
|
||||
list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
|
||||
rcu_read_lock();
|
||||
vlan_dev = __vlan_find_dev_deep(bond->dev,
|
||||
vlan->vlan_id);
|
||||
rcu_read_unlock();
|
||||
if (vlan_dev == event_dev) {
|
||||
switch (event) {
|
||||
case NETDEV_UP:
|
||||
if (ipv6_addr_any(&vlan->vlan_ipv6))
|
||||
vlan->vlan_ipv6 = ifa->addr;
|
||||
return NOTIFY_OK;
|
||||
case NETDEV_DOWN:
|
||||
if (ipv6_addr_equal(&vlan->vlan_ipv6,
|
||||
&ifa->addr))
|
||||
bond_glean_dev_ipv6(vlan_dev,
|
||||
&vlan->vlan_ipv6);
|
||||
return NOTIFY_OK;
|
||||
default:
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static struct notifier_block bond_inet6addr_notifier = {
|
||||
.notifier_call = bond_inet6addr_event,
|
||||
};
|
||||
|
||||
void bond_register_ipv6_notifier(void)
|
||||
{
|
||||
register_inet6addr_notifier(&bond_inet6addr_notifier);
|
||||
}
|
||||
|
||||
void bond_unregister_ipv6_notifier(void)
|
||||
{
|
||||
unregister_inet6addr_notifier(&bond_inet6addr_notifier);
|
||||
}
|
||||
|
Loading…
Reference in a new issue