1 /* 2 * Copyright 2007-2012 Siemens AG 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 6 * as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * Written by: 14 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> 15 * Sergey Lapin <slapin@ossfans.org> 16 * Maxim Gorbachyov <maxim.gorbachev@siemens.com> 17 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> 18 */ 19 20 #include <linux/if_arp.h> 21 22 #include <net/mac802154.h> 23 #include <net/ieee802154_netdev.h> 24 #include <net/cfg802154.h> 25 26 #include "ieee802154_i.h" 27 #include "driver-ops.h" 28 29 struct hw_addr_filt_notify_work { 30 struct work_struct work; 31 struct net_device *dev; 32 unsigned long changed; 33 }; 34 35 static struct ieee802154_local *mac802154_slave_get_priv(struct net_device *dev) 36 { 37 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 38 39 BUG_ON(dev->type != ARPHRD_IEEE802154); 40 41 return sdata->local; 42 } 43 44 static void hw_addr_notify(struct work_struct *work) 45 { 46 struct hw_addr_filt_notify_work *nw = container_of(work, 47 struct hw_addr_filt_notify_work, work); 48 struct ieee802154_local *local = mac802154_slave_get_priv(nw->dev); 49 int res; 50 51 res = local->ops->set_hw_addr_filt(&local->hw, &local->hw.hw_filt, 52 nw->changed); 53 if (res) 54 pr_debug("failed changed mask %lx\n", nw->changed); 55 56 kfree(nw); 57 } 58 59 static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) 60 { 61 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 62 struct hw_addr_filt_notify_work *work; 63 64 work = kzalloc(sizeof(*work), GFP_ATOMIC); 65 if (!work) 66 return; 67 68 INIT_WORK(&work->work, hw_addr_notify); 69 work->dev = dev; 70 work->changed = changed; 71 queue_work(sdata->local->workqueue, &work->work); 72 } 73 74 void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val) 75 { 76 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 77 78 BUG_ON(dev->type != ARPHRD_IEEE802154); 79 80 spin_lock_bh(&sdata->mib_lock); 81 sdata->short_addr = val; 82 spin_unlock_bh(&sdata->mib_lock); 83 84 if ((sdata->local->ops->set_hw_addr_filt) && 85 (sdata->local->hw.hw_filt.short_addr != sdata->short_addr)) { 86 sdata->local->hw.hw_filt.short_addr = sdata->short_addr; 87 set_hw_addr_filt(dev, IEEE802154_AFILT_SADDR_CHANGED); 88 } 89 } 90 91 __le16 mac802154_dev_get_short_addr(const struct net_device *dev) 92 { 93 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 94 __le16 ret; 95 96 BUG_ON(dev->type != ARPHRD_IEEE802154); 97 98 spin_lock_bh(&sdata->mib_lock); 99 ret = sdata->short_addr; 100 spin_unlock_bh(&sdata->mib_lock); 101 102 return ret; 103 } 104 105 __le16 mac802154_dev_get_pan_id(const struct net_device *dev) 106 { 107 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 108 __le16 ret; 109 110 BUG_ON(dev->type != ARPHRD_IEEE802154); 111 112 spin_lock_bh(&sdata->mib_lock); 113 ret = sdata->pan_id; 114 spin_unlock_bh(&sdata->mib_lock); 115 116 return ret; 117 } 118 119 void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val) 120 { 121 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 122 123 BUG_ON(dev->type != ARPHRD_IEEE802154); 124 125 spin_lock_bh(&sdata->mib_lock); 126 sdata->pan_id = val; 127 spin_unlock_bh(&sdata->mib_lock); 128 129 if ((sdata->local->ops->set_hw_addr_filt) && 130 (sdata->local->hw.hw_filt.pan_id != sdata->pan_id)) { 131 sdata->local->hw.hw_filt.pan_id = sdata->pan_id; 132 set_hw_addr_filt(dev, IEEE802154_AFILT_PANID_CHANGED); 133 } 134 } 135 136 u8 mac802154_dev_get_dsn(const struct net_device *dev) 137 { 138 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 139 140 BUG_ON(dev->type != ARPHRD_IEEE802154); 141 142 return sdata->dsn++; 143 } 144 145 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) 146 { 147 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 148 struct ieee802154_local *local = sdata->local; 149 int res; 150 151 BUG_ON(dev->type != ARPHRD_IEEE802154); 152 153 res = drv_set_channel(local, page, chan); 154 if (res) { 155 pr_debug("set_channel failed\n"); 156 } else { 157 mutex_lock(&local->phy->pib_lock); 158 local->phy->current_channel = chan; 159 local->phy->current_page = page; 160 mutex_unlock(&local->phy->pib_lock); 161 } 162 } 163 164 165 int mac802154_get_params(struct net_device *dev, 166 struct ieee802154_llsec_params *params) 167 { 168 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 169 int res; 170 171 BUG_ON(dev->type != ARPHRD_IEEE802154); 172 173 mutex_lock(&sdata->sec_mtx); 174 res = mac802154_llsec_get_params(&sdata->sec, params); 175 mutex_unlock(&sdata->sec_mtx); 176 177 return res; 178 } 179 180 int mac802154_set_params(struct net_device *dev, 181 const struct ieee802154_llsec_params *params, 182 int changed) 183 { 184 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 185 int res; 186 187 BUG_ON(dev->type != ARPHRD_IEEE802154); 188 189 mutex_lock(&sdata->sec_mtx); 190 res = mac802154_llsec_set_params(&sdata->sec, params, changed); 191 mutex_unlock(&sdata->sec_mtx); 192 193 return res; 194 } 195 196 197 int mac802154_add_key(struct net_device *dev, 198 const struct ieee802154_llsec_key_id *id, 199 const struct ieee802154_llsec_key *key) 200 { 201 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 202 int res; 203 204 BUG_ON(dev->type != ARPHRD_IEEE802154); 205 206 mutex_lock(&sdata->sec_mtx); 207 res = mac802154_llsec_key_add(&sdata->sec, id, key); 208 mutex_unlock(&sdata->sec_mtx); 209 210 return res; 211 } 212 213 int mac802154_del_key(struct net_device *dev, 214 const struct ieee802154_llsec_key_id *id) 215 { 216 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 217 int res; 218 219 BUG_ON(dev->type != ARPHRD_IEEE802154); 220 221 mutex_lock(&sdata->sec_mtx); 222 res = mac802154_llsec_key_del(&sdata->sec, id); 223 mutex_unlock(&sdata->sec_mtx); 224 225 return res; 226 } 227 228 229 int mac802154_add_dev(struct net_device *dev, 230 const struct ieee802154_llsec_device *llsec_dev) 231 { 232 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 233 int res; 234 235 BUG_ON(dev->type != ARPHRD_IEEE802154); 236 237 mutex_lock(&sdata->sec_mtx); 238 res = mac802154_llsec_dev_add(&sdata->sec, llsec_dev); 239 mutex_unlock(&sdata->sec_mtx); 240 241 return res; 242 } 243 244 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr) 245 { 246 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 247 int res; 248 249 BUG_ON(dev->type != ARPHRD_IEEE802154); 250 251 mutex_lock(&sdata->sec_mtx); 252 res = mac802154_llsec_dev_del(&sdata->sec, dev_addr); 253 mutex_unlock(&sdata->sec_mtx); 254 255 return res; 256 } 257 258 259 int mac802154_add_devkey(struct net_device *dev, 260 __le64 device_addr, 261 const struct ieee802154_llsec_device_key *key) 262 { 263 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 264 int res; 265 266 BUG_ON(dev->type != ARPHRD_IEEE802154); 267 268 mutex_lock(&sdata->sec_mtx); 269 res = mac802154_llsec_devkey_add(&sdata->sec, device_addr, key); 270 mutex_unlock(&sdata->sec_mtx); 271 272 return res; 273 } 274 275 int mac802154_del_devkey(struct net_device *dev, 276 __le64 device_addr, 277 const struct ieee802154_llsec_device_key *key) 278 { 279 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 280 int res; 281 282 BUG_ON(dev->type != ARPHRD_IEEE802154); 283 284 mutex_lock(&sdata->sec_mtx); 285 res = mac802154_llsec_devkey_del(&sdata->sec, device_addr, key); 286 mutex_unlock(&sdata->sec_mtx); 287 288 return res; 289 } 290 291 292 int mac802154_add_seclevel(struct net_device *dev, 293 const struct ieee802154_llsec_seclevel *sl) 294 { 295 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 296 int res; 297 298 BUG_ON(dev->type != ARPHRD_IEEE802154); 299 300 mutex_lock(&sdata->sec_mtx); 301 res = mac802154_llsec_seclevel_add(&sdata->sec, sl); 302 mutex_unlock(&sdata->sec_mtx); 303 304 return res; 305 } 306 307 int mac802154_del_seclevel(struct net_device *dev, 308 const struct ieee802154_llsec_seclevel *sl) 309 { 310 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 311 int res; 312 313 BUG_ON(dev->type != ARPHRD_IEEE802154); 314 315 mutex_lock(&sdata->sec_mtx); 316 res = mac802154_llsec_seclevel_del(&sdata->sec, sl); 317 mutex_unlock(&sdata->sec_mtx); 318 319 return res; 320 } 321 322 323 void mac802154_lock_table(struct net_device *dev) 324 { 325 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 326 327 BUG_ON(dev->type != ARPHRD_IEEE802154); 328 329 mutex_lock(&sdata->sec_mtx); 330 } 331 332 void mac802154_get_table(struct net_device *dev, 333 struct ieee802154_llsec_table **t) 334 { 335 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 336 337 BUG_ON(dev->type != ARPHRD_IEEE802154); 338 339 *t = &sdata->sec.table; 340 } 341 342 void mac802154_unlock_table(struct net_device *dev) 343 { 344 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 345 346 BUG_ON(dev->type != ARPHRD_IEEE802154); 347 348 mutex_unlock(&sdata->sec_mtx); 349 } 350