1 /* This program is free software; you can redistribute it and/or modify 2 * it under the terms of the GNU General Public License version 2 3 * as published by the Free Software Foundation. 4 * 5 * This program is distributed in the hope that it will be useful, 6 * but WITHOUT ANY WARRANTY; without even the implied warranty of 7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8 * GNU General Public License for more details. 9 * 10 * Authors: 11 * Alexander Aring <aar@pengutronix.de> 12 * 13 * Based on: net/mac80211/cfg.c 14 */ 15 16 #include <net/rtnetlink.h> 17 #include <net/cfg802154.h> 18 19 #include "ieee802154_i.h" 20 #include "driver-ops.h" 21 #include "cfg.h" 22 23 static struct net_device * 24 ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy, 25 const char *name, 26 unsigned char name_assign_type, int type) 27 { 28 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 29 struct net_device *dev; 30 31 rtnl_lock(); 32 dev = ieee802154_if_add(local, name, name_assign_type, type, 33 cpu_to_le64(0x0000000000000000ULL)); 34 rtnl_unlock(); 35 36 return dev; 37 } 38 39 static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy, 40 struct net_device *dev) 41 { 42 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 43 44 ieee802154_if_remove(sdata); 45 } 46 47 #ifdef CONFIG_PM 48 static int ieee802154_suspend(struct wpan_phy *wpan_phy) 49 { 50 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 51 52 if (!local->open_count) 53 goto suspend; 54 55 ieee802154_stop_queue(&local->hw); 56 synchronize_net(); 57 58 /* stop hardware - this must stop RX */ 59 ieee802154_stop_device(local); 60 61 suspend: 62 local->suspended = true; 63 return 0; 64 } 65 66 static int ieee802154_resume(struct wpan_phy *wpan_phy) 67 { 68 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 69 int ret; 70 71 /* nothing to do if HW shouldn't run */ 72 if (!local->open_count) 73 goto wake_up; 74 75 /* restart hardware */ 76 ret = drv_start(local); 77 if (ret) 78 return ret; 79 80 wake_up: 81 ieee802154_wake_queue(&local->hw); 82 local->suspended = false; 83 return 0; 84 } 85 #else 86 #define ieee802154_suspend NULL 87 #define ieee802154_resume NULL 88 #endif 89 90 static int 91 ieee802154_add_iface(struct wpan_phy *phy, const char *name, 92 unsigned char name_assign_type, 93 enum nl802154_iftype type, __le64 extended_addr) 94 { 95 struct ieee802154_local *local = wpan_phy_priv(phy); 96 struct net_device *err; 97 98 err = ieee802154_if_add(local, name, name_assign_type, type, 99 extended_addr); 100 return PTR_ERR_OR_ZERO(err); 101 } 102 103 static int 104 ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) 105 { 106 ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev)); 107 108 return 0; 109 } 110 111 static int 112 ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel) 113 { 114 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 115 int ret; 116 117 ASSERT_RTNL(); 118 119 if (wpan_phy->current_page == page && 120 wpan_phy->current_channel == channel) 121 return 0; 122 123 ret = drv_set_channel(local, page, channel); 124 if (!ret) { 125 wpan_phy->current_page = page; 126 wpan_phy->current_channel = channel; 127 } 128 129 return ret; 130 } 131 132 static int 133 ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, 134 const struct wpan_phy_cca *cca) 135 { 136 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 137 int ret; 138 139 ASSERT_RTNL(); 140 141 if (wpan_phy_cca_cmp(&wpan_phy->cca, cca)) 142 return 0; 143 144 ret = drv_set_cca_mode(local, cca); 145 if (!ret) 146 wpan_phy->cca = *cca; 147 148 return ret; 149 } 150 151 static int 152 ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) 153 { 154 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 155 int ret; 156 157 ASSERT_RTNL(); 158 159 if (wpan_phy->cca_ed_level == ed_level) 160 return 0; 161 162 ret = drv_set_cca_ed_level(local, ed_level); 163 if (!ret) 164 wpan_phy->cca_ed_level = ed_level; 165 166 return ret; 167 } 168 169 static int 170 ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) 171 { 172 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 173 int ret; 174 175 ASSERT_RTNL(); 176 177 if (wpan_phy->transmit_power == power) 178 return 0; 179 180 ret = drv_set_tx_power(local, power); 181 if (!ret) 182 wpan_phy->transmit_power = power; 183 184 return ret; 185 } 186 187 static int 188 ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 189 __le16 pan_id) 190 { 191 int ret; 192 193 ASSERT_RTNL(); 194 195 if (wpan_dev->pan_id == pan_id) 196 return 0; 197 198 ret = mac802154_wpan_update_llsec(wpan_dev->netdev); 199 if (!ret) 200 wpan_dev->pan_id = pan_id; 201 202 return ret; 203 } 204 205 static int 206 ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, 207 struct wpan_dev *wpan_dev, 208 u8 min_be, u8 max_be) 209 { 210 ASSERT_RTNL(); 211 212 wpan_dev->min_be = min_be; 213 wpan_dev->max_be = max_be; 214 return 0; 215 } 216 217 static int 218 ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 219 __le16 short_addr) 220 { 221 ASSERT_RTNL(); 222 223 wpan_dev->short_addr = short_addr; 224 return 0; 225 } 226 227 static int 228 ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, 229 struct wpan_dev *wpan_dev, 230 u8 max_csma_backoffs) 231 { 232 ASSERT_RTNL(); 233 234 wpan_dev->csma_retries = max_csma_backoffs; 235 return 0; 236 } 237 238 static int 239 ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, 240 struct wpan_dev *wpan_dev, 241 s8 max_frame_retries) 242 { 243 ASSERT_RTNL(); 244 245 wpan_dev->frame_retries = max_frame_retries; 246 return 0; 247 } 248 249 static int 250 ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 251 bool mode) 252 { 253 ASSERT_RTNL(); 254 255 wpan_dev->lbt = mode; 256 return 0; 257 } 258 259 static int 260 ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, 261 struct wpan_dev *wpan_dev, bool ackreq) 262 { 263 ASSERT_RTNL(); 264 265 wpan_dev->ackreq = ackreq; 266 return 0; 267 } 268 269 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 270 static void 271 ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, 272 struct wpan_dev *wpan_dev, 273 struct ieee802154_llsec_table **table) 274 { 275 struct net_device *dev = wpan_dev->netdev; 276 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 277 278 *table = &sdata->sec.table; 279 } 280 281 static void 282 ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, 283 struct wpan_dev *wpan_dev) 284 { 285 struct net_device *dev = wpan_dev->netdev; 286 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 287 288 mutex_lock(&sdata->sec_mtx); 289 } 290 291 static void 292 ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, 293 struct wpan_dev *wpan_dev) 294 { 295 struct net_device *dev = wpan_dev->netdev; 296 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 297 298 mutex_unlock(&sdata->sec_mtx); 299 } 300 301 static int 302 ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, 303 struct wpan_dev *wpan_dev, 304 const struct ieee802154_llsec_params *params, 305 int changed) 306 { 307 struct net_device *dev = wpan_dev->netdev; 308 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 309 int res; 310 311 mutex_lock(&sdata->sec_mtx); 312 res = mac802154_llsec_set_params(&sdata->sec, params, changed); 313 mutex_unlock(&sdata->sec_mtx); 314 315 return res; 316 } 317 318 static int 319 ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, 320 struct wpan_dev *wpan_dev, 321 struct ieee802154_llsec_params *params) 322 { 323 struct net_device *dev = wpan_dev->netdev; 324 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 325 int res; 326 327 mutex_lock(&sdata->sec_mtx); 328 res = mac802154_llsec_get_params(&sdata->sec, params); 329 mutex_unlock(&sdata->sec_mtx); 330 331 return res; 332 } 333 334 static int 335 ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 336 const struct ieee802154_llsec_key_id *id, 337 const struct ieee802154_llsec_key *key) 338 { 339 struct net_device *dev = wpan_dev->netdev; 340 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 341 int res; 342 343 mutex_lock(&sdata->sec_mtx); 344 res = mac802154_llsec_key_add(&sdata->sec, id, key); 345 mutex_unlock(&sdata->sec_mtx); 346 347 return res; 348 } 349 350 static int 351 ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 352 const struct ieee802154_llsec_key_id *id) 353 { 354 struct net_device *dev = wpan_dev->netdev; 355 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 356 int res; 357 358 mutex_lock(&sdata->sec_mtx); 359 res = mac802154_llsec_key_del(&sdata->sec, id); 360 mutex_unlock(&sdata->sec_mtx); 361 362 return res; 363 } 364 365 static int 366 ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 367 const struct ieee802154_llsec_seclevel *sl) 368 { 369 struct net_device *dev = wpan_dev->netdev; 370 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 371 int res; 372 373 mutex_lock(&sdata->sec_mtx); 374 res = mac802154_llsec_seclevel_add(&sdata->sec, sl); 375 mutex_unlock(&sdata->sec_mtx); 376 377 return res; 378 } 379 380 static int 381 ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 382 const struct ieee802154_llsec_seclevel *sl) 383 { 384 struct net_device *dev = wpan_dev->netdev; 385 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 386 int res; 387 388 mutex_lock(&sdata->sec_mtx); 389 res = mac802154_llsec_seclevel_del(&sdata->sec, sl); 390 mutex_unlock(&sdata->sec_mtx); 391 392 return res; 393 } 394 395 static int 396 ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 397 const struct ieee802154_llsec_device *dev_desc) 398 { 399 struct net_device *dev = wpan_dev->netdev; 400 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 401 int res; 402 403 mutex_lock(&sdata->sec_mtx); 404 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc); 405 mutex_unlock(&sdata->sec_mtx); 406 407 return res; 408 } 409 410 static int 411 ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 412 __le64 extended_addr) 413 { 414 struct net_device *dev = wpan_dev->netdev; 415 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 416 int res; 417 418 mutex_lock(&sdata->sec_mtx); 419 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr); 420 mutex_unlock(&sdata->sec_mtx); 421 422 return res; 423 } 424 425 static int 426 ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 427 __le64 extended_addr, 428 const struct ieee802154_llsec_device_key *key) 429 { 430 struct net_device *dev = wpan_dev->netdev; 431 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 432 int res; 433 434 mutex_lock(&sdata->sec_mtx); 435 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key); 436 mutex_unlock(&sdata->sec_mtx); 437 438 return res; 439 } 440 441 static int 442 ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 443 __le64 extended_addr, 444 const struct ieee802154_llsec_device_key *key) 445 { 446 struct net_device *dev = wpan_dev->netdev; 447 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 448 int res; 449 450 mutex_lock(&sdata->sec_mtx); 451 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key); 452 mutex_unlock(&sdata->sec_mtx); 453 454 return res; 455 } 456 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 457 458 const struct cfg802154_ops mac802154_config_ops = { 459 .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, 460 .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, 461 .suspend = ieee802154_suspend, 462 .resume = ieee802154_resume, 463 .add_virtual_intf = ieee802154_add_iface, 464 .del_virtual_intf = ieee802154_del_iface, 465 .set_channel = ieee802154_set_channel, 466 .set_cca_mode = ieee802154_set_cca_mode, 467 .set_cca_ed_level = ieee802154_set_cca_ed_level, 468 .set_tx_power = ieee802154_set_tx_power, 469 .set_pan_id = ieee802154_set_pan_id, 470 .set_short_addr = ieee802154_set_short_addr, 471 .set_backoff_exponent = ieee802154_set_backoff_exponent, 472 .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs, 473 .set_max_frame_retries = ieee802154_set_max_frame_retries, 474 .set_lbt_mode = ieee802154_set_lbt_mode, 475 .set_ackreq_default = ieee802154_set_ackreq_default, 476 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 477 .get_llsec_table = ieee802154_get_llsec_table, 478 .lock_llsec_table = ieee802154_lock_llsec_table, 479 .unlock_llsec_table = ieee802154_unlock_llsec_table, 480 /* TODO above */ 481 .set_llsec_params = ieee802154_set_llsec_params, 482 .get_llsec_params = ieee802154_get_llsec_params, 483 .add_llsec_key = ieee802154_add_llsec_key, 484 .del_llsec_key = ieee802154_del_llsec_key, 485 .add_seclevel = ieee802154_add_seclevel, 486 .del_seclevel = ieee802154_del_seclevel, 487 .add_device = ieee802154_add_device, 488 .del_device = ieee802154_del_device, 489 .add_devkey = ieee802154_add_devkey, 490 .del_devkey = ieee802154_del_devkey, 491 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 492 }; 493