1 /* 2 * MAC commands interface 3 * 4 * Copyright 2007-2012 Siemens AG 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 8 * as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * Written by: 16 * Sergey Lapin <slapin@ossfans.org> 17 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> 18 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> 19 */ 20 21 #include <linux/skbuff.h> 22 #include <linux/if_arp.h> 23 #include <linux/ieee802154.h> 24 25 #include <net/ieee802154_netdev.h> 26 #include <net/cfg802154.h> 27 #include <net/mac802154.h> 28 29 #include "ieee802154_i.h" 30 #include "driver-ops.h" 31 32 static int mac802154_mlme_start_req(struct net_device *dev, 33 struct ieee802154_addr *addr, 34 u8 channel, u8 page, 35 u8 bcn_ord, u8 sf_ord, 36 u8 pan_coord, u8 blx, 37 u8 coord_realign) 38 { 39 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); 40 int rc = 0; 41 42 BUG_ON(addr->mode != IEEE802154_ADDR_SHORT); 43 44 mac802154_dev_set_pan_id(dev, addr->pan_id); 45 mac802154_dev_set_short_addr(dev, addr->short_addr); 46 mac802154_dev_set_page_channel(dev, page, channel); 47 48 if (ops->llsec) { 49 struct ieee802154_llsec_params params; 50 int changed = 0; 51 52 params.coord_shortaddr = addr->short_addr; 53 changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR; 54 55 params.pan_id = addr->pan_id; 56 changed |= IEEE802154_LLSEC_PARAM_PAN_ID; 57 58 params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr); 59 changed |= IEEE802154_LLSEC_PARAM_HWADDR; 60 61 params.coord_hwaddr = params.hwaddr; 62 changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR; 63 64 rc = ops->llsec->set_params(dev, ¶ms, changed); 65 } 66 67 return rc; 68 } 69 70 static int mac802154_set_mac_params(struct net_device *dev, 71 const struct ieee802154_mac_params *params) 72 { 73 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 74 struct ieee802154_local *local = sdata->local; 75 int ret; 76 77 mutex_lock(&sdata->local->iflist_mtx); 78 sdata->mac_params = *params; 79 mutex_unlock(&sdata->local->iflist_mtx); 80 81 if (local->hw.flags & IEEE802154_HW_TXPOWER) { 82 ret = drv_set_tx_power(local, params->transmit_power); 83 if (ret < 0) 84 return ret; 85 } 86 87 if (local->hw.flags & IEEE802154_HW_CCA_MODE) { 88 ret = drv_set_cca_mode(local, params->cca_mode); 89 if (ret < 0) 90 return ret; 91 } 92 93 if (local->hw.flags & IEEE802154_HW_CCA_ED_LEVEL) { 94 ret = drv_set_cca_ed_level(local, params->cca_ed_level); 95 if (ret < 0) 96 return ret; 97 } 98 99 return 0; 100 } 101 102 static void mac802154_get_mac_params(struct net_device *dev, 103 struct ieee802154_mac_params *params) 104 { 105 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 106 107 mutex_lock(&sdata->local->iflist_mtx); 108 *params = sdata->mac_params; 109 mutex_unlock(&sdata->local->iflist_mtx); 110 } 111 112 static struct ieee802154_llsec_ops mac802154_llsec_ops = { 113 .get_params = mac802154_get_params, 114 .set_params = mac802154_set_params, 115 .add_key = mac802154_add_key, 116 .del_key = mac802154_del_key, 117 .add_dev = mac802154_add_dev, 118 .del_dev = mac802154_del_dev, 119 .add_devkey = mac802154_add_devkey, 120 .del_devkey = mac802154_del_devkey, 121 .add_seclevel = mac802154_add_seclevel, 122 .del_seclevel = mac802154_del_seclevel, 123 .lock_table = mac802154_lock_table, 124 .get_table = mac802154_get_table, 125 .unlock_table = mac802154_unlock_table, 126 }; 127 128 struct ieee802154_mlme_ops mac802154_mlme_wpan = { 129 .start_req = mac802154_mlme_start_req, 130 .get_pan_id = mac802154_dev_get_pan_id, 131 .get_short_addr = mac802154_dev_get_short_addr, 132 .get_dsn = mac802154_dev_get_dsn, 133 134 .llsec = &mac802154_llsec_ops, 135 136 .set_mac_params = mac802154_set_mac_params, 137 .get_mac_params = mac802154_get_mac_params, 138 }; 139