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fc4099f172
While transitioning to netdev based vport we broke OVS
feature which allows user to retrieve tunnel packet egress
information for lwtunnel devices. Following patch fixes it
by introducing ndo operation to get the tunnel egress info.
Same ndo operation can be used for lwtunnel devices and compat
ovs-tnl-vport devices. So after adding such device operation
we can remove similar operation from ovs-vport.
Fixes: 614732eaa1 ("openvswitch: Use regular VXLAN net_device device").
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/*
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* Copyright (c) 2007-2014 Nicira, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/if.h>
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#include <linux/skbuff.h>
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#include <linux/ip.h>
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#include <linux/if_tunnel.h>
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#include <linux/if_vlan.h>
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#include <linux/in.h>
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#include <linux/in_route.h>
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#include <linux/inetdevice.h>
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#include <linux/jhash.h>
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#include <linux/list.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/workqueue.h>
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#include <linux/rculist.h>
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#include <net/route.h>
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#include <net/xfrm.h>
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#include <net/icmp.h>
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#include <net/ip.h>
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#include <net/ip_tunnels.h>
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#include <net/gre.h>
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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#include <net/protocol.h>
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#include "datapath.h"
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#include "vport.h"
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#include "vport-netdev.h"
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static struct vport_ops ovs_gre_vport_ops;
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static struct vport *gre_tnl_create(const struct vport_parms *parms)
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{
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struct net *net = ovs_dp_get_net(parms->dp);
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struct net_device *dev;
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struct vport *vport;
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vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms);
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if (IS_ERR(vport))
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return vport;
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rtnl_lock();
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dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER);
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if (IS_ERR(dev)) {
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rtnl_unlock();
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ovs_vport_free(vport);
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return ERR_CAST(dev);
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}
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dev_change_flags(dev, dev->flags | IFF_UP);
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rtnl_unlock();
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return vport;
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}
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static struct vport *gre_create(const struct vport_parms *parms)
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{
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struct vport *vport;
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vport = gre_tnl_create(parms);
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if (IS_ERR(vport))
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return vport;
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return ovs_netdev_link(vport, parms->name);
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}
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static struct vport_ops ovs_gre_vport_ops = {
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.type = OVS_VPORT_TYPE_GRE,
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.create = gre_create,
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.send = ovs_netdev_send,
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.destroy = ovs_netdev_tunnel_destroy,
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.owner = THIS_MODULE,
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};
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static int __init ovs_gre_tnl_init(void)
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{
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return ovs_vport_ops_register(&ovs_gre_vport_ops);
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}
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static void __exit ovs_gre_tnl_exit(void)
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{
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ovs_vport_ops_unregister(&ovs_gre_vport_ops);
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}
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module_init(ovs_gre_tnl_init);
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module_exit(ovs_gre_tnl_exit);
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MODULE_DESCRIPTION("OVS: GRE switching port");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("vport-type-3");
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