projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 70c03b49 PM |
2 | /* |
| 3 | * IEEE 802.1Q GARP VLAN Registration Protocol (GVRP) | |
| 4 | * | |
| 5 | * Copyright (c) 2008 Patrick McHardy <[email protected]> | |
| 70c03b49 PM |
6 | */ |
| 7 | #include <linux/types.h> | |
| 8 | #include <linux/if_vlan.h> | |
| 9 | #include <net/garp.h> | |
| 10 | #include "vlan.h" | |
| 11 | ||
| 12 | #define GARP_GVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 } | |
| 13 | ||
| 14 | enum gvrp_attributes { | |
| 15 | GVRP_ATTR_INVALID, | |
| 16 | GVRP_ATTR_VID, | |
| 17 | __GVRP_ATTR_MAX | |
| 18 | }; | |
| 19 | #define GVRP_ATTR_MAX (__GVRP_ATTR_MAX - 1) | |
| 20 | ||
| 21 | static struct garp_application vlan_gvrp_app __read_mostly = { | |
| 22 | .proto.group_address = GARP_GVRP_ADDRESS, | |
| 23 | .maxattr = GVRP_ATTR_MAX, | |
| 24 | .type = GARP_APPLICATION_GVRP, | |
| 25 | }; | |
| 26 | ||
| 27 | int vlan_gvrp_request_join(const struct net_device *dev) | |
| 28 | { | |
| 7da82c06 | 29 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 9bb8582e | 30 | __be16 vlan_id = htons(vlan->vlan_id); |
| 70c03b49 | 31 | |
| 1fd9b1fc PM |
32 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 33 | return 0; | |
| 70c03b49 | 34 | return garp_request_join(vlan->real_dev, &vlan_gvrp_app, |
| 9bb8582e | 35 | &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID); |
| 70c03b49 PM |
36 | } |
| 37 | ||
| 38 | void vlan_gvrp_request_leave(const struct net_device *dev) | |
| 39 | { | |
| 7da82c06 | 40 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 9bb8582e | 41 | __be16 vlan_id = htons(vlan->vlan_id); |
| 70c03b49 | 42 | |
| 1fd9b1fc PM |
43 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 44 | return; | |
| 70c03b49 | 45 | garp_request_leave(vlan->real_dev, &vlan_gvrp_app, |
| 9bb8582e | 46 | &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID); |
| 70c03b49 PM |
47 | } |
| 48 | ||
| 49 | int vlan_gvrp_init_applicant(struct net_device *dev) | |
| 50 | { | |
| 51 | return garp_init_applicant(dev, &vlan_gvrp_app); | |
| 52 | } | |
| 53 | ||
| 54 | void vlan_gvrp_uninit_applicant(struct net_device *dev) | |
| 55 | { | |
| 56 | garp_uninit_applicant(dev, &vlan_gvrp_app); | |
| 57 | } | |
| 58 | ||
| 59 | int __init vlan_gvrp_init(void) | |
| 60 | { | |
| 61 | return garp_register_application(&vlan_gvrp_app); | |
| 62 | } | |
| 63 | ||
| 64 | void vlan_gvrp_uninit(void) | |
| 65 | { | |
| 66 | garp_unregister_application(&vlan_gvrp_app); | |
| 67 | } |