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Diffstat (limited to 'net/ipv4/devinet.c')
-rw-r--r--net/ipv4/devinet.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 73721a4448bd..f4468980b675 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -215,7 +215,7 @@ static void devinet_sysctl_unregister(struct in_device *idev)
static struct in_ifaddr *inet_alloc_ifa(void)
{
- return kzalloc(sizeof(struct in_ifaddr), GFP_KERNEL);
+ return kzalloc(sizeof(struct in_ifaddr), GFP_KERNEL_ACCOUNT);
}
static void inet_rcu_free_ifa(struct rcu_head *head)
@@ -1243,7 +1243,7 @@ out:
return ret;
}
-static int inet_gifconf(struct net_device *dev, char __user *buf, int len, int size)
+int inet_gifconf(struct net_device *dev, char __user *buf, int len, int size)
{
struct in_device *in_dev = __in_dev_get_rtnl(dev);
const struct in_ifaddr *ifa;
@@ -1950,7 +1950,8 @@ static const struct nla_policy inet_af_policy[IFLA_INET_MAX+1] = {
};
static int inet_validate_link_af(const struct net_device *dev,
- const struct nlattr *nla)
+ const struct nlattr *nla,
+ struct netlink_ext_ack *extack)
{
struct nlattr *a, *tb[IFLA_INET_MAX+1];
int err, rem;
@@ -1959,7 +1960,7 @@ static int inet_validate_link_af(const struct net_device *dev,
return -EAFNOSUPPORT;
err = nla_parse_nested_deprecated(tb, IFLA_INET_MAX, nla,
- inet_af_policy, NULL);
+ inet_af_policy, extack);
if (err < 0)
return err;
@@ -2424,11 +2425,15 @@ static int devinet_sysctl_forward(struct ctl_table *ctl, int write,
int *valp = ctl->data;
int val = *valp;
loff_t pos = *ppos;
- int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
+ struct net *net = ctl->extra2;
+ int ret;
- if (write && *valp != val) {
- struct net *net = ctl->extra2;
+ if (write && !ns_capable(net->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
+
+ ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
+ if (write && *valp != val) {
if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
if (!rtnl_trylock()) {
/* Restore the original values before restarting */
@@ -2762,8 +2767,6 @@ void __init devinet_init(void)
INIT_HLIST_HEAD(&inet_addr_lst[i]);
register_pernet_subsys(&devinet_ops);
-
- register_gifconf(PF_INET, inet_gifconf);
register_netdevice_notifier(&ip_netdev_notifier);
queue_delayed_work(system_power_efficient_wq, &check_lifetime_work, 0);