projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 70c03b49 PM |
1 | /* |
| 2 | * IEEE 802.1Q GARP VLAN Registration Protocol (GVRP) | |
| 3 | * | |
| 4 | * Copyright (c) 2008 Patrick McHardy <[email protected]> | |
| 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. | |
| 9 | */ | |
| 10 | #include <linux/types.h> | |
| 11 | #include <linux/if_vlan.h> | |
| 12 | #include <net/garp.h> | |
| 13 | #include "vlan.h" | |
| 14 | ||
| 15 | #define GARP_GVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 } | |
| 16 | ||
| 17 | enum gvrp_attributes { | |
| 18 | GVRP_ATTR_INVALID, | |
| 19 | GVRP_ATTR_VID, | |
| 20 | __GVRP_ATTR_MAX | |
| 21 | }; | |
| 22 | #define GVRP_ATTR_MAX (__GVRP_ATTR_MAX - 1) | |
| 23 | ||
| 24 | static struct garp_application vlan_gvrp_app __read_mostly = { | |
| 25 | .proto.group_address = GARP_GVRP_ADDRESS, | |
| 26 | .maxattr = GVRP_ATTR_MAX, | |
| 27 | .type = GARP_APPLICATION_GVRP, | |
| 28 | }; | |
| 29 | ||
| 30 | int vlan_gvrp_request_join(const struct net_device *dev) | |
| 31 | { | |
| 7da82c06 | 32 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 9bb8582e | 33 | __be16 vlan_id = htons(vlan->vlan_id); |
| 70c03b49 | 34 | |
| 1fd9b1fc PM |
35 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 36 | return 0; | |
| 70c03b49 | 37 | return garp_request_join(vlan->real_dev, &vlan_gvrp_app, |
| 9bb8582e | 38 | &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID); |
| 70c03b49 PM |
39 | } |
| 40 | ||
| 41 | void vlan_gvrp_request_leave(const struct net_device *dev) | |
| 42 | { | |
| 7da82c06 | 43 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 9bb8582e | 44 | __be16 vlan_id = htons(vlan->vlan_id); |
| 70c03b49 | 45 | |
| 1fd9b1fc PM |
46 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 47 | return; | |
| 70c03b49 | 48 | garp_request_leave(vlan->real_dev, &vlan_gvrp_app, |
| 9bb8582e | 49 | &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID); |
| 70c03b49 PM |
50 | } |
| 51 | ||
| 52 | int vlan_gvrp_init_applicant(struct net_device *dev) | |
| 53 | { | |
| 54 | return garp_init_applicant(dev, &vlan_gvrp_app); | |
| 55 | } | |
| 56 | ||
| 57 | void vlan_gvrp_uninit_applicant(struct net_device *dev) | |
| 58 | { | |
| 59 | garp_uninit_applicant(dev, &vlan_gvrp_app); | |
| 60 | } | |
| 61 | ||
| 62 | int __init vlan_gvrp_init(void) | |
| 63 | { | |
| 64 | return garp_register_application(&vlan_gvrp_app); | |
| 65 | } | |
| 66 | ||
| 67 | void vlan_gvrp_uninit(void) | |
| 68 | { | |
| 69 | garp_unregister_application(&vlan_gvrp_app); | |
| 70 | } |