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-rw-r--r--drivers/net/ipvlan/ipvlan.h3
-rw-r--r--drivers/net/ipvlan/ipvlan_main.c78
-rw-r--r--drivers/net/ipvlan/ipvtap.c9
3 files changed, 81 insertions, 9 deletions
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
index 7919369c0a72..ba8173a0b62e 100644
--- a/drivers/net/ipvlan/ipvlan.h
+++ b/drivers/net/ipvlan/ipvlan.h
@@ -140,7 +140,8 @@ unsigned int ipvlan_nf_input(void *priv, struct sk_buff *skb,
void ipvlan_count_rx(const struct ipvl_dev *ipvlan,
unsigned int len, bool success, bool mcast);
int ipvlan_link_new(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[]);
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack);
void ipvlan_link_delete(struct net_device *dev, struct list_head *head);
void ipvlan_link_setup(struct net_device *dev);
int ipvlan_link_register(struct rtnl_link_ops *ops);
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 7c7680c8f0e3..f37e3c1fd4e7 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -455,7 +455,8 @@ static const struct ethtool_ops ipvlan_ethtool_ops = {
};
static int ipvlan_nl_changelink(struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[])
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
{
struct ipvl_dev *ipvlan = netdev_priv(dev);
struct ipvl_port *port = ipvlan_port_get_rtnl(ipvlan->phy_dev);
@@ -476,7 +477,8 @@ static size_t ipvlan_nl_getsize(const struct net_device *dev)
);
}
-static int ipvlan_nl_validate(struct nlattr *tb[], struct nlattr *data[])
+static int ipvlan_nl_validate(struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
{
if (data && data[IFLA_IPVLAN_MODE]) {
u16 mode = nla_get_u16(data[IFLA_IPVLAN_MODE]);
@@ -508,7 +510,8 @@ err:
}
int ipvlan_link_new(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[])
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
{
struct ipvl_dev *ipvlan = netdev_priv(dev);
struct ipvl_port *port;
@@ -824,6 +827,33 @@ static int ipvlan_addr6_event(struct notifier_block *unused,
return NOTIFY_OK;
}
+static int ipvlan_addr6_validator_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct in6_validator_info *i6vi = (struct in6_validator_info *)ptr;
+ struct net_device *dev = (struct net_device *)i6vi->i6vi_dev->dev;
+ struct ipvl_dev *ipvlan = netdev_priv(dev);
+
+ /* FIXME IPv6 autoconf calls us from bh without RTNL */
+ if (in_softirq())
+ return NOTIFY_DONE;
+
+ if (!netif_is_ipvlan(dev))
+ return NOTIFY_DONE;
+
+ if (!ipvlan || !ipvlan->port)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_UP:
+ if (ipvlan_addr_busy(ipvlan->port, &i6vi->i6vi_addr, true))
+ return notifier_from_errno(-EADDRINUSE);
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
static int ipvlan_add_addr4(struct ipvl_dev *ipvlan, struct in_addr *ip4_addr)
{
if (ipvlan_addr_busy(ipvlan->port, ip4_addr, false)) {
@@ -871,10 +901,37 @@ static int ipvlan_addr4_event(struct notifier_block *unused,
return NOTIFY_OK;
}
+static int ipvlan_addr4_validator_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct in_validator_info *ivi = (struct in_validator_info *)ptr;
+ struct net_device *dev = (struct net_device *)ivi->ivi_dev->dev;
+ struct ipvl_dev *ipvlan = netdev_priv(dev);
+
+ if (!netif_is_ipvlan(dev))
+ return NOTIFY_DONE;
+
+ if (!ipvlan || !ipvlan->port)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_UP:
+ if (ipvlan_addr_busy(ipvlan->port, &ivi->ivi_addr, false))
+ return notifier_from_errno(-EADDRINUSE);
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
static struct notifier_block ipvlan_addr4_notifier_block __read_mostly = {
.notifier_call = ipvlan_addr4_event,
};
+static struct notifier_block ipvlan_addr4_vtor_notifier_block __read_mostly = {
+ .notifier_call = ipvlan_addr4_validator_event,
+};
+
static struct notifier_block ipvlan_notifier_block __read_mostly = {
.notifier_call = ipvlan_device_event,
};
@@ -883,6 +940,10 @@ static struct notifier_block ipvlan_addr6_notifier_block __read_mostly = {
.notifier_call = ipvlan_addr6_event,
};
+static struct notifier_block ipvlan_addr6_vtor_notifier_block __read_mostly = {
+ .notifier_call = ipvlan_addr6_validator_event,
+};
+
static void ipvlan_ns_exit(struct net *net)
{
struct ipvlan_netns *vnet = net_generic(net, ipvlan_netid);
@@ -907,7 +968,10 @@ static int __init ipvlan_init_module(void)
ipvlan_init_secret();
register_netdevice_notifier(&ipvlan_notifier_block);
register_inet6addr_notifier(&ipvlan_addr6_notifier_block);
+ register_inet6addr_validator_notifier(
+ &ipvlan_addr6_vtor_notifier_block);
register_inetaddr_notifier(&ipvlan_addr4_notifier_block);
+ register_inetaddr_validator_notifier(&ipvlan_addr4_vtor_notifier_block);
err = register_pernet_subsys(&ipvlan_net_ops);
if (err < 0)
@@ -922,7 +986,11 @@ static int __init ipvlan_init_module(void)
return 0;
error:
unregister_inetaddr_notifier(&ipvlan_addr4_notifier_block);
+ unregister_inetaddr_validator_notifier(
+ &ipvlan_addr4_vtor_notifier_block);
unregister_inet6addr_notifier(&ipvlan_addr6_notifier_block);
+ unregister_inet6addr_validator_notifier(
+ &ipvlan_addr6_vtor_notifier_block);
unregister_netdevice_notifier(&ipvlan_notifier_block);
return err;
}
@@ -933,7 +1001,11 @@ static void __exit ipvlan_cleanup_module(void)
unregister_pernet_subsys(&ipvlan_net_ops);
unregister_netdevice_notifier(&ipvlan_notifier_block);
unregister_inetaddr_notifier(&ipvlan_addr4_notifier_block);
+ unregister_inetaddr_validator_notifier(
+ &ipvlan_addr4_vtor_notifier_block);
unregister_inet6addr_notifier(&ipvlan_addr6_notifier_block);
+ unregister_inet6addr_validator_notifier(
+ &ipvlan_addr6_vtor_notifier_block);
}
module_init(ipvlan_init_module);
diff --git a/drivers/net/ipvlan/ipvtap.c b/drivers/net/ipvlan/ipvtap.c
index 2b713b63b62c..22f133ea8d7b 100644
--- a/drivers/net/ipvlan/ipvtap.c
+++ b/drivers/net/ipvlan/ipvtap.c
@@ -73,10 +73,9 @@ static void ipvtap_update_features(struct tap_dev *tap,
netdev_update_features(vlan->dev);
}
-static int ipvtap_newlink(struct net *src_net,
- struct net_device *dev,
- struct nlattr *tb[],
- struct nlattr *data[])
+static int ipvtap_newlink(struct net *src_net, struct net_device *dev,
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
{
struct ipvtap_dev *vlantap = netdev_priv(dev);
int err;
@@ -98,7 +97,7 @@ static int ipvtap_newlink(struct net *src_net,
/* Don't put anything that may fail after macvlan_common_newlink
* because we can't undo what it does.
*/
- err = ipvlan_link_new(src_net, dev, tb, data);
+ err = ipvlan_link_new(src_net, dev, tb, data, extack);
if (err) {
netdev_rx_handler_unregister(dev);
return err;
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-07 09:22:06 +0100