1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * IEEE 802.1Q GARP VLAN Registration Pro 2 * IEEE 802.1Q GARP VLAN Registration Protocol (GVRP)
4 * 3 *
5 * Copyright (c) 2008 Patrick McHardy <ka 4 * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
>> 5 *
>> 6 * This program is free software; you can redistribute it and/or
>> 7 * modify it under the terms of the GNU General Public License
>> 8 * version 2 as published by the Free Software Foundation.
6 */ 9 */
7 #include <linux/types.h> 10 #include <linux/types.h>
8 #include <linux/if_vlan.h> 11 #include <linux/if_vlan.h>
9 #include <net/garp.h> 12 #include <net/garp.h>
10 #include "vlan.h" 13 #include "vlan.h"
11 14
12 #define GARP_GVRP_ADDRESS { 0x01, 0x80, 15 #define GARP_GVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }
13 16
14 enum gvrp_attributes { 17 enum gvrp_attributes {
15 GVRP_ATTR_INVALID, 18 GVRP_ATTR_INVALID,
16 GVRP_ATTR_VID, 19 GVRP_ATTR_VID,
17 __GVRP_ATTR_MAX 20 __GVRP_ATTR_MAX
18 }; 21 };
19 #define GVRP_ATTR_MAX (__GVRP_ATTR_MAX - 1) 22 #define GVRP_ATTR_MAX (__GVRP_ATTR_MAX - 1)
20 23
21 static struct garp_application vlan_gvrp_app _ 24 static struct garp_application vlan_gvrp_app __read_mostly = {
22 .proto.group_address = GARP_GVRP_AD 25 .proto.group_address = GARP_GVRP_ADDRESS,
23 .maxattr = GVRP_ATTR_MA 26 .maxattr = GVRP_ATTR_MAX,
24 .type = GARP_APPLICA 27 .type = GARP_APPLICATION_GVRP,
25 }; 28 };
26 29
27 int vlan_gvrp_request_join(const struct net_de 30 int vlan_gvrp_request_join(const struct net_device *dev)
28 { 31 {
29 const struct vlan_dev_priv *vlan = vla 32 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
30 __be16 vlan_id = htons(vlan->vlan_id); 33 __be16 vlan_id = htons(vlan->vlan_id);
31 34
32 if (vlan->vlan_proto != htons(ETH_P_80 35 if (vlan->vlan_proto != htons(ETH_P_8021Q))
33 return 0; 36 return 0;
34 return garp_request_join(vlan->real_de 37 return garp_request_join(vlan->real_dev, &vlan_gvrp_app,
35 &vlan_id, siz 38 &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
36 } 39 }
37 40
38 void vlan_gvrp_request_leave(const struct net_ 41 void vlan_gvrp_request_leave(const struct net_device *dev)
39 { 42 {
40 const struct vlan_dev_priv *vlan = vla 43 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
41 __be16 vlan_id = htons(vlan->vlan_id); 44 __be16 vlan_id = htons(vlan->vlan_id);
42 45
43 if (vlan->vlan_proto != htons(ETH_P_80 46 if (vlan->vlan_proto != htons(ETH_P_8021Q))
44 return; 47 return;
45 garp_request_leave(vlan->real_dev, &vl 48 garp_request_leave(vlan->real_dev, &vlan_gvrp_app,
46 &vlan_id, sizeof(vl 49 &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
47 } 50 }
48 51
49 int vlan_gvrp_init_applicant(struct net_device 52 int vlan_gvrp_init_applicant(struct net_device *dev)
50 { 53 {
51 return garp_init_applicant(dev, &vlan_ 54 return garp_init_applicant(dev, &vlan_gvrp_app);
52 } 55 }
53 56
54 void vlan_gvrp_uninit_applicant(struct net_dev 57 void vlan_gvrp_uninit_applicant(struct net_device *dev)
55 { 58 {
56 garp_uninit_applicant(dev, &vlan_gvrp_ 59 garp_uninit_applicant(dev, &vlan_gvrp_app);
57 } 60 }
58 61
59 int __init vlan_gvrp_init(void) 62 int __init vlan_gvrp_init(void)
60 { 63 {
61 return garp_register_application(&vlan 64 return garp_register_application(&vlan_gvrp_app);
62 } 65 }
63 66
64 void vlan_gvrp_uninit(void) 67 void vlan_gvrp_uninit(void)
65 { 68 {
66 garp_unregister_application(&vlan_gvrp 69 garp_unregister_application(&vlan_gvrp_app);
67 } 70 }
68 71
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.