projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 86fbe9bb DW |
1 | /* |
| 2 | * IEEE 802.1Q Multiple VLAN Registration Protocol (MVRP) | |
| 3 | * | |
| 4 | * Copyright (c) 2012 Massachusetts Institute of Technology | |
| 5 | * | |
| 6 | * Adapted from code in net/8021q/vlan_gvrp.c | |
| 7 | * Copyright (c) 2008 Patrick McHardy <[email protected]> | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License | |
| 11 | * version 2 as published by the Free Software Foundation. | |
| 12 | */ | |
| 13 | #include <linux/types.h> | |
| 14 | #include <linux/if_ether.h> | |
| 15 | #include <linux/if_vlan.h> | |
| 16 | #include <net/mrp.h> | |
| 17 | #include "vlan.h" | |
| 18 | ||
| 19 | #define MRP_MVRP_ADDRESS { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 } | |
| 20 | ||
| 21 | enum mvrp_attributes { | |
| 22 | MVRP_ATTR_INVALID, | |
| 23 | MVRP_ATTR_VID, | |
| 24 | __MVRP_ATTR_MAX | |
| 25 | }; | |
| 26 | #define MVRP_ATTR_MAX (__MVRP_ATTR_MAX - 1) | |
| 27 | ||
| 28 | static struct mrp_application vlan_mrp_app __read_mostly = { | |
| 29 | .type = MRP_APPLICATION_MVRP, | |
| 30 | .maxattr = MVRP_ATTR_MAX, | |
| 31 | .pkttype.type = htons(ETH_P_MVRP), | |
| 32 | .group_address = MRP_MVRP_ADDRESS, | |
| 33 | .version = 0, | |
| 34 | }; | |
| 35 | ||
| 36 | int vlan_mvrp_request_join(const struct net_device *dev) | |
| 37 | { | |
| 38 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
| 39 | __be16 vlan_id = htons(vlan->vlan_id); | |
| 40 | ||
| 1fd9b1fc PM |
41 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 42 | return 0; | |
| 86fbe9bb DW |
43 | return mrp_request_join(vlan->real_dev, &vlan_mrp_app, |
| 44 | &vlan_id, sizeof(vlan_id), MVRP_ATTR_VID); | |
| 45 | } | |
| 46 | ||
| 47 | void vlan_mvrp_request_leave(const struct net_device *dev) | |
| 48 | { | |
| 49 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
| 50 | __be16 vlan_id = htons(vlan->vlan_id); | |
| 51 | ||
| 1fd9b1fc PM |
52 | if (vlan->vlan_proto != htons(ETH_P_8021Q)) |
| 53 | return; | |
| 86fbe9bb DW |
54 | mrp_request_leave(vlan->real_dev, &vlan_mrp_app, |
| 55 | &vlan_id, sizeof(vlan_id), MVRP_ATTR_VID); | |
| 56 | } | |
| 57 | ||
| 58 | int vlan_mvrp_init_applicant(struct net_device *dev) | |
| 59 | { | |
| 60 | return mrp_init_applicant(dev, &vlan_mrp_app); | |
| 61 | } | |
| 62 | ||
| 63 | void vlan_mvrp_uninit_applicant(struct net_device *dev) | |
| 64 | { | |
| 65 | mrp_uninit_applicant(dev, &vlan_mrp_app); | |
| 66 | } | |
| 67 | ||
| 68 | int __init vlan_mvrp_init(void) | |
| 69 | { | |
| 70 | return mrp_register_application(&vlan_mrp_app); | |
| 71 | } | |
| 72 | ||
| 73 | void vlan_mvrp_uninit(void) | |
| 74 | { | |
| 75 | mrp_unregister_application(&vlan_mrp_app); | |
| 76 | } |