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-rw-r--r--net/ipv4/devinet.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 71afc26..d9f71ba 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1289,14 +1289,14 @@ static const struct nla_policy inet_af_policy[IFLA_INET_MAX+1] = {
[IFLA_INET_CONF] = { .type = NLA_NESTED },
};
-static int inet_parse_link_af(struct net_device *dev, const struct nlattr *nla)
+static int inet_validate_link_af(const struct net_device *dev,
+ const struct nlattr *nla)
{
- struct in_device *in_dev = __in_dev_get_rcu(dev);
struct nlattr *a, *tb[IFLA_INET_MAX+1];
int err, rem;
- if (!in_dev)
- return -EOPNOTSUPP;
+ if (dev && !__in_dev_get_rcu(dev))
+ return -EAFNOSUPPORT;
err = nla_parse_nested(tb, IFLA_INET_MAX, nla, inet_af_policy);
if (err < 0)
@@ -1314,6 +1314,21 @@ static int inet_parse_link_af(struct net_device *dev, const struct nlattr *nla)
}
}
+ return 0;
+}
+
+static int inet_set_link_af(struct net_device *dev, const struct nlattr *nla)
+{
+ struct in_device *in_dev = __in_dev_get_rcu(dev);
+ struct nlattr *a, *tb[IFLA_INET_MAX+1];
+ int rem;
+
+ if (!in_dev)
+ return -EAFNOSUPPORT;
+
+ if (nla_parse_nested(tb, IFLA_INET_MAX, nla, NULL) < 0)
+ BUG();
+
if (tb[IFLA_INET_CONF]) {
nla_for_each_nested(a, tb[IFLA_INET_CONF], rem)
ipv4_devconf_set(in_dev, nla_type(a), nla_get_u32(a));
@@ -1689,7 +1704,8 @@ static struct rtnl_af_ops inet_af_ops = {
.family = AF_INET,
.fill_link_af = inet_fill_link_af,
.get_link_af_size = inet_get_link_af_size,
- .parse_link_af = inet_parse_link_af,
+ .validate_link_af = inet_validate_link_af,
+ .set_link_af = inet_set_link_af,
};
void __init devinet_init(void)
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