ipvtap: IP-VLAN based tap driver

This patch adds a tap character device driver that is based on the
IP-VLAN network interface, called ipvtap. An ipvtap device can be created
in the same way as an ipvlan device, using 'type ipvtap', and then accessed
using the tap user space interface.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 15 insertions, 12 deletions

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 95b18f4602cf..aa8575ccbce3 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -496,8 +496,8 @@ err:
         return ret;
 }
 
-static int ipvlan_link_new(struct net *src_net, struct net_device *dev,
-                           struct nlattr *tb[], struct nlattr *data[])
+int ipvlan_link_new(struct net *src_net, struct net_device *dev,
+                    struct nlattr *tb[], struct nlattr *data[])
 {
         struct ipvl_dev *ipvlan = netdev_priv(dev);
         struct ipvl_port *port;
@@ -594,8 +594,9 @@ destroy_ipvlan_port:
                 ipvlan_port_destroy(phy_dev);
         return err;
 }
+EXPORT_SYMBOL_GPL(ipvlan_link_new);
 
-static void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
+void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
 {
         struct ipvl_dev *ipvlan = netdev_priv(dev);
         struct ipvl_addr *addr, *next;
@@ -611,8 +612,9 @@ static void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
         unregister_netdevice_queue(dev, head);
         netdev_upper_dev_unlink(ipvlan->phy_dev, dev);
 }
+EXPORT_SYMBOL_GPL(ipvlan_link_delete);
 
-static void ipvlan_link_setup(struct net_device *dev)
+void ipvlan_link_setup(struct net_device *dev)
 {
         ether_setup(dev);
 
@@ -623,6 +625,7 @@ static void ipvlan_link_setup(struct net_device *dev)
         dev->header_ops = &ipvlan_header_ops;
         dev->ethtool_ops = &ipvlan_ethtool_ops;
 }
+EXPORT_SYMBOL_GPL(ipvlan_link_setup);
 
 static const struct nla_policy ipvlan_nl_policy[IFLA_IPVLAN_MAX + 1] =
 {
@@ -633,22 +636,22 @@ static struct rtnl_link_ops ipvlan_link_ops = {
         .kind           = "ipvlan",
         .priv_size      = sizeof(struct ipvl_dev),
 
-        .get_size       = ipvlan_nl_getsize,
-        .policy         = ipvlan_nl_policy,
-        .validate       = ipvlan_nl_validate,
-        .fill_info      = ipvlan_nl_fillinfo,
-        .changelink     = ipvlan_nl_changelink,
-        .maxtype        = IFLA_IPVLAN_MAX,
-
         .setup          = ipvlan_link_setup,
         .newlink        = ipvlan_link_new,
         .dellink        = ipvlan_link_delete,
 };
 
-static int ipvlan_link_register(struct rtnl_link_ops *ops)
+int ipvlan_link_register(struct rtnl_link_ops *ops)
 {
+        ops->get_size   = ipvlan_nl_getsize;
+        ops->policy     = ipvlan_nl_policy;
+        ops->validate   = ipvlan_nl_validate;
+        ops->fill_info  = ipvlan_nl_fillinfo;
+        ops->changelink = ipvlan_nl_changelink;
+        ops->maxtype    = IFLA_IPVLAN_MAX;
         return rtnl_link_register(ops);
 }
+EXPORT_SYMBOL_GPL(ipvlan_link_register);
 
 static int ipvlan_device_event(struct notifier_block *unused,
                                unsigned long event, void *ptr)