mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
b7a595577e
Since errors are propagated all the way up to the caller, propagate possible extack of the caller all the way down to the notifier block callback. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/rtnetlink.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/socket.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/export.h>
|
|
#include <net/net_namespace.h>
|
|
#include <net/fib_notifier.h>
|
|
#include <net/netns/ipv4.h>
|
|
#include <net/ip_fib.h>
|
|
|
|
int call_fib4_notifier(struct notifier_block *nb,
|
|
enum fib_event_type event_type,
|
|
struct fib_notifier_info *info)
|
|
{
|
|
info->family = AF_INET;
|
|
return call_fib_notifier(nb, event_type, info);
|
|
}
|
|
|
|
int call_fib4_notifiers(struct net *net, enum fib_event_type event_type,
|
|
struct fib_notifier_info *info)
|
|
{
|
|
ASSERT_RTNL();
|
|
|
|
info->family = AF_INET;
|
|
net->ipv4.fib_seq++;
|
|
return call_fib_notifiers(net, event_type, info);
|
|
}
|
|
|
|
static unsigned int fib4_seq_read(struct net *net)
|
|
{
|
|
ASSERT_RTNL();
|
|
|
|
return net->ipv4.fib_seq + fib4_rules_seq_read(net);
|
|
}
|
|
|
|
static int fib4_dump(struct net *net, struct notifier_block *nb,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
int err;
|
|
|
|
err = fib4_rules_dump(net, nb, extack);
|
|
if (err)
|
|
return err;
|
|
|
|
return fib_notify(net, nb, extack);
|
|
}
|
|
|
|
static const struct fib_notifier_ops fib4_notifier_ops_template = {
|
|
.family = AF_INET,
|
|
.fib_seq_read = fib4_seq_read,
|
|
.fib_dump = fib4_dump,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
int __net_init fib4_notifier_init(struct net *net)
|
|
{
|
|
struct fib_notifier_ops *ops;
|
|
|
|
net->ipv4.fib_seq = 0;
|
|
|
|
ops = fib_notifier_ops_register(&fib4_notifier_ops_template, net);
|
|
if (IS_ERR(ops))
|
|
return PTR_ERR(ops);
|
|
net->ipv4.notifier_ops = ops;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void __net_exit fib4_notifier_exit(struct net *net)
|
|
{
|
|
fib_notifier_ops_unregister(net->ipv4.notifier_ops);
|
|
}
|