cregit-Linux how code gets into the kernel

Release 4.14 net/openvswitch/vport-gre.c

Directory: net/openvswitch
/*
 * Copyright (c) 2007-2014 Nicira, Inc.
 *
 * 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
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/if.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/if_tunnel.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/in_route.h>
#include <linux/inetdevice.h>
#include <linux/jhash.h>
#include <linux/list.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/rculist.h>
#include <net/route.h>
#include <net/xfrm.h>

#include <net/icmp.h>
#include <net/ip.h>
#include <net/ip_tunnels.h>
#include <net/gre.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <net/protocol.h>

#include "datapath.h"
#include "vport.h"
#include "vport-netdev.h"


static struct vport_ops ovs_gre_vport_ops;


static struct vport *gre_tnl_create(const struct vport_parms *parms) { struct net *net = ovs_dp_get_net(parms->dp); struct net_device *dev; struct vport *vport; int err; vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms); if (IS_ERR(vport)) return vport; rtnl_lock(); dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER); if (IS_ERR(dev)) { rtnl_unlock(); ovs_vport_free(vport); return ERR_CAST(dev); } err = dev_change_flags(dev, dev->flags | IFF_UP); if (err < 0) { rtnl_delete_link(dev); rtnl_unlock(); ovs_vport_free(vport); return ERR_PTR(err); } rtnl_unlock(); return vport; }

Contributors

PersonTokensPropCommitsCommitProp
Pravin B Shelar11478.08%266.67%
Martynas Pumputis3221.92%133.33%
Total146100.00%3100.00%


static struct vport *gre_create(const struct vport_parms *parms) { struct vport *vport; vport = gre_tnl_create(parms); if (IS_ERR(vport)) return vport; return ovs_netdev_link(vport, parms->name); }

Contributors

PersonTokensPropCommitsCommitProp
Pravin B Shelar46100.00%2100.00%
Total46100.00%2100.00%

static struct vport_ops ovs_gre_vport_ops = { .type = OVS_VPORT_TYPE_GRE, .create = gre_create, .send = dev_queue_xmit, .destroy = ovs_netdev_tunnel_destroy, };
static int __init ovs_gre_tnl_init(void) { return ovs_vport_ops_register(&ovs_gre_vport_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Thomas Graf16100.00%1100.00%
Total16100.00%1100.00%


static void __exit ovs_gre_tnl_exit(void) { ovs_vport_ops_unregister(&ovs_gre_vport_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Thomas Graf15100.00%1100.00%
Total15100.00%1100.00%

module_init(ovs_gre_tnl_init); module_exit(ovs_gre_tnl_exit); MODULE_DESCRIPTION("OVS: GRE switching port"); MODULE_LICENSE("GPL"); MODULE_ALIAS("vport-type-3");

Overall Contributors

PersonTokensPropCommitsCommitProp
Pravin B Shelar27274.32%466.67%
Thomas Graf6216.94%116.67%
Martynas Pumputis328.74%116.67%
Total366100.00%6100.00%
Directory: net/openvswitch
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