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c942299924
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 21 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.228102212@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
2.1 KiB
C
104 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2007-2014 Nicira, Inc.
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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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int err;
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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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err = dev_change_flags(dev, dev->flags | IFF_UP, NULL);
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if (err < 0) {
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rtnl_delete_link(dev);
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rtnl_unlock();
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ovs_vport_free(vport);
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return ERR_PTR(err);
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}
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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 = dev_queue_xmit,
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.destroy = ovs_netdev_tunnel_destroy,
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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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