1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * Copyright (c) 2007-2014 Nicira, Inc. 2 * Copyright (c) 2007-2014 Nicira, Inc.
>> 3 *
>> 4 * This program is free software; you can redistribute it and/or
>> 5 * modify it under the terms of version 2 of the GNU General Public
>> 6 * License as published by the Free Software Foundation.
>> 7 *
>> 8 * This program is distributed in the hope that it will be useful, but
>> 9 * WITHOUT ANY WARRANTY; without even the implied warranty of
>> 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
>> 11 * General Public License for more details.
>> 12 *
>> 13 * You should have received a copy of the GNU General Public License
>> 14 * along with this program; if not, write to the Free Software
>> 15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
>> 16 * 02110-1301, USA
4 */ 17 */
5 18
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
7 20
8 #include <linux/if.h> 21 #include <linux/if.h>
9 #include <linux/skbuff.h> 22 #include <linux/skbuff.h>
10 #include <linux/ip.h> 23 #include <linux/ip.h>
11 #include <linux/if_tunnel.h> 24 #include <linux/if_tunnel.h>
12 #include <linux/if_vlan.h> 25 #include <linux/if_vlan.h>
13 #include <linux/in.h> 26 #include <linux/in.h>
14 #include <linux/in_route.h> 27 #include <linux/in_route.h>
15 #include <linux/inetdevice.h> 28 #include <linux/inetdevice.h>
16 #include <linux/jhash.h> 29 #include <linux/jhash.h>
17 #include <linux/list.h> 30 #include <linux/list.h>
18 #include <linux/kernel.h> 31 #include <linux/kernel.h>
19 #include <linux/module.h> 32 #include <linux/module.h>
20 #include <linux/workqueue.h> 33 #include <linux/workqueue.h>
21 #include <linux/rculist.h> 34 #include <linux/rculist.h>
22 #include <net/route.h> 35 #include <net/route.h>
23 #include <net/xfrm.h> 36 #include <net/xfrm.h>
24 37
25 #include <net/icmp.h> 38 #include <net/icmp.h>
26 #include <net/ip.h> 39 #include <net/ip.h>
27 #include <net/ip_tunnels.h> 40 #include <net/ip_tunnels.h>
28 #include <net/gre.h> 41 #include <net/gre.h>
29 #include <net/net_namespace.h> 42 #include <net/net_namespace.h>
30 #include <net/netns/generic.h> 43 #include <net/netns/generic.h>
31 #include <net/protocol.h> 44 #include <net/protocol.h>
32 45
33 #include "datapath.h" 46 #include "datapath.h"
34 #include "vport.h" 47 #include "vport.h"
35 #include "vport-netdev.h" 48 #include "vport-netdev.h"
36 49
37 static struct vport_ops ovs_gre_vport_ops; 50 static struct vport_ops ovs_gre_vport_ops;
38 51
39 static struct vport *gre_tnl_create(const stru 52 static struct vport *gre_tnl_create(const struct vport_parms *parms)
40 { 53 {
41 struct net *net = ovs_dp_get_net(parms 54 struct net *net = ovs_dp_get_net(parms->dp);
42 struct net_device *dev; 55 struct net_device *dev;
43 struct vport *vport; 56 struct vport *vport;
44 int err; 57 int err;
45 58
46 vport = ovs_vport_alloc(0, &ovs_gre_vp 59 vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms);
47 if (IS_ERR(vport)) 60 if (IS_ERR(vport))
48 return vport; 61 return vport;
49 62
50 rtnl_lock(); 63 rtnl_lock();
51 dev = gretap_fb_dev_create(net, parms- 64 dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER);
52 if (IS_ERR(dev)) { 65 if (IS_ERR(dev)) {
53 rtnl_unlock(); 66 rtnl_unlock();
54 ovs_vport_free(vport); 67 ovs_vport_free(vport);
55 return ERR_CAST(dev); 68 return ERR_CAST(dev);
56 } 69 }
57 70
58 err = dev_change_flags(dev, dev->flags !! 71 err = dev_change_flags(dev, dev->flags | IFF_UP);
59 if (err < 0) { 72 if (err < 0) {
60 rtnl_delete_link(dev, 0, NULL) !! 73 rtnl_delete_link(dev);
61 rtnl_unlock(); 74 rtnl_unlock();
62 ovs_vport_free(vport); 75 ovs_vport_free(vport);
63 return ERR_PTR(err); 76 return ERR_PTR(err);
64 } 77 }
65 78
66 rtnl_unlock(); 79 rtnl_unlock();
67 return vport; 80 return vport;
68 } 81 }
69 82
70 static struct vport *gre_create(const struct v 83 static struct vport *gre_create(const struct vport_parms *parms)
71 { 84 {
72 struct vport *vport; 85 struct vport *vport;
73 86
74 vport = gre_tnl_create(parms); 87 vport = gre_tnl_create(parms);
75 if (IS_ERR(vport)) 88 if (IS_ERR(vport))
76 return vport; 89 return vport;
77 90
78 return ovs_netdev_link(vport, parms->n 91 return ovs_netdev_link(vport, parms->name);
79 } 92 }
80 93
81 static struct vport_ops ovs_gre_vport_ops = { 94 static struct vport_ops ovs_gre_vport_ops = {
82 .type = OVS_VPORT_TYPE_GRE, 95 .type = OVS_VPORT_TYPE_GRE,
83 .create = gre_create, 96 .create = gre_create,
84 .send = dev_queue_xmit, 97 .send = dev_queue_xmit,
85 .destroy = ovs_netdev_tunnel_de 98 .destroy = ovs_netdev_tunnel_destroy,
86 }; 99 };
87 100
88 static int __init ovs_gre_tnl_init(void) 101 static int __init ovs_gre_tnl_init(void)
89 { 102 {
90 return ovs_vport_ops_register(&ovs_gre 103 return ovs_vport_ops_register(&ovs_gre_vport_ops);
91 } 104 }
92 105
93 static void __exit ovs_gre_tnl_exit(void) 106 static void __exit ovs_gre_tnl_exit(void)
94 { 107 {
95 ovs_vport_ops_unregister(&ovs_gre_vpor 108 ovs_vport_ops_unregister(&ovs_gre_vport_ops);
96 } 109 }
97 110
98 module_init(ovs_gre_tnl_init); 111 module_init(ovs_gre_tnl_init);
99 module_exit(ovs_gre_tnl_exit); 112 module_exit(ovs_gre_tnl_exit);
100 113
101 MODULE_DESCRIPTION("OVS: GRE switching port"); 114 MODULE_DESCRIPTION("OVS: GRE switching port");
102 MODULE_LICENSE("GPL"); 115 MODULE_LICENSE("GPL");
103 MODULE_ALIAS("vport-type-3"); 116 MODULE_ALIAS("vport-type-3");
104 117
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