cregit-Linux how code gets into the kernel

Release 4.11 net/openvswitch/vport-geneve.c

Directory: net/openvswitch
/*
 * Copyright (c) 2014 Nicira, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/in.h>
#include <linux/ip.h>
#include <linux/net.h>
#include <linux/rculist.h>
#include <linux/udp.h>
#include <linux/if_vlan.h>
#include <linux/module.h>

#include <net/geneve.h>
#include <net/icmp.h>
#include <net/ip.h>
#include <net/route.h>
#include <net/udp.h>
#include <net/xfrm.h>

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


static struct vport_ops ovs_geneve_vport_ops;
/**
 * struct geneve_port - Keeps track of open UDP ports
 * @dst_port: destination port.
 */

struct geneve_port {
	
u16 dst_port;
};


static inline struct geneve_port *geneve_vport(const struct vport *vport) { return vport_priv(vport); }

Contributors

PersonTokensPropCommitsCommitProp
Jesse Gross21100.00%1100.00%
Total21100.00%1100.00%


static int geneve_get_options(const struct vport *vport, struct sk_buff *skb) { struct geneve_port *geneve_port = geneve_vport(vport); if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, geneve_port->dst_port)) return -EMSGSIZE; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Pravin B Shelar3063.83%133.33%
Jesse Gross1634.04%133.33%
Jean Sacren12.13%133.33%
Total47100.00%3100.00%


static struct vport *geneve_tnl_create(const struct vport_parms *parms) { struct net *net = ovs_dp_get_net(parms->dp); struct nlattr *options = parms->options; struct geneve_port *geneve_port; struct net_device *dev; struct vport *vport; struct nlattr *a; u16 dst_port; int err; if (!options) { err = -EINVAL; goto error; } a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT); if (a && nla_len(a) == sizeof(u16)) { dst_port = nla_get_u16(a); } else { /* Require destination port from userspace. */ err = -EINVAL; goto error; } vport = ovs_vport_alloc(sizeof(struct geneve_port), &ovs_geneve_vport_ops, parms); if (IS_ERR(vport)) return vport; geneve_port = geneve_vport(vport); geneve_port->dst_port = dst_port; rtnl_lock(); dev = geneve_dev_create_fb(net, parms->name, NET_NAME_USER, dst_port); 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); goto error; } rtnl_unlock(); return vport; error: return ERR_PTR(err); }

Contributors

PersonTokensPropCommitsCommitProp
Jesse Gross16766.53%120.00%
Pravin B Shelar5321.12%120.00%
Martynas Pumputis2610.36%120.00%
Andy Zhou41.59%120.00%
Jean Sacren10.40%120.00%
Total251100.00%5100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
Jesse Gross2656.52%133.33%
Pravin B Shelar1226.09%133.33%
Wenyu Zhang817.39%133.33%
Total46100.00%3100.00%

static struct vport_ops ovs_geneve_vport_ops = { .type = OVS_VPORT_TYPE_GENEVE, .create = geneve_create, .destroy = ovs_netdev_tunnel_destroy, .get_options = geneve_get_options, .send = dev_queue_xmit, };
static int __init ovs_geneve_tnl_init(void) { return ovs_vport_ops_register(&ovs_geneve_vport_ops); }

Contributors

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


static void __exit ovs_geneve_tnl_exit(void) { ovs_vport_ops_unregister(&ovs_geneve_vport_ops); }

Contributors

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

module_init(ovs_geneve_tnl_init); module_exit(ovs_geneve_tnl_exit); MODULE_DESCRIPTION("OVS: Geneve switching port"); MODULE_LICENSE("GPL"); MODULE_ALIAS("vport-type-5");

Overall Contributors

PersonTokensPropCommitsCommitProp
Jesse Gross31460.04%111.11%
Pravin B Shelar10319.69%222.22%
Thomas Graf6412.24%111.11%
Martynas Pumputis264.97%111.11%
Wenyu Zhang81.53%111.11%
Andy Zhou40.76%111.11%
Jean Sacren30.57%111.11%
Masanari Iida10.19%111.11%
Total523100.00%9100.00%
Directory: net/openvswitch
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