1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * 4 * Authors: 5 * Alexander Aring <aar@pengutronix.de> 6 * 7 * Based on: net/mac80211/cfg.c 8 */ 9 10 #include <net/rtnetlink.h> 11 #include <net/cfg802154.h> 12 13 #include "ieee802154_i.h" 14 #include "driver-ops.h" 15 #include "cfg.h" 16 17 static struct net_device * 18 ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy, 19 const char *name, 20 unsigned char name_assign_type, int type) 21 { 22 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 23 struct net_device *dev; 24 25 rtnl_lock(); 26 dev = ieee802154_if_add(local, name, name_assign_type, type, 27 cpu_to_le64(0x0000000000000000ULL)); 28 rtnl_unlock(); 29 30 return dev; 31 } 32 33 static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy, 34 struct net_device *dev) 35 { 36 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 37 38 ieee802154_if_remove(sdata); 39 } 40 41 #ifdef CONFIG_PM 42 static int ieee802154_suspend(struct wpan_phy *wpan_phy) 43 { 44 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 45 46 if (!local->open_count) 47 goto suspend; 48 49 ieee802154_stop_queue(&local->hw); 50 synchronize_net(); 51 52 /* stop hardware - this must stop RX */ 53 ieee802154_stop_device(local); 54 55 suspend: 56 local->suspended = true; 57 return 0; 58 } 59 60 static int ieee802154_resume(struct wpan_phy *wpan_phy) 61 { 62 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 63 int ret; 64 65 /* nothing to do if HW shouldn't run */ 66 if (!local->open_count) 67 goto wake_up; 68 69 /* restart hardware */ 70 ret = drv_start(local); 71 if (ret) 72 return ret; 73 74 wake_up: 75 ieee802154_wake_queue(&local->hw); 76 local->suspended = false; 77 return 0; 78 } 79 #else 80 #define ieee802154_suspend NULL 81 #define ieee802154_resume NULL 82 #endif 83 84 static int 85 ieee802154_add_iface(struct wpan_phy *phy, const char *name, 86 unsigned char name_assign_type, 87 enum nl802154_iftype type, __le64 extended_addr) 88 { 89 struct ieee802154_local *local = wpan_phy_priv(phy); 90 struct net_device *err; 91 92 err = ieee802154_if_add(local, name, name_assign_type, type, 93 extended_addr); 94 return PTR_ERR_OR_ZERO(err); 95 } 96 97 static int 98 ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) 99 { 100 ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev)); 101 102 return 0; 103 } 104 105 static int 106 ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel) 107 { 108 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 109 int ret; 110 111 ASSERT_RTNL(); 112 113 if (wpan_phy->current_page == page && 114 wpan_phy->current_channel == channel) 115 return 0; 116 117 ret = drv_set_channel(local, page, channel); 118 if (!ret) { 119 wpan_phy->current_page = page; 120 wpan_phy->current_channel = channel; 121 } 122 123 return ret; 124 } 125 126 static int 127 ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, 128 const struct wpan_phy_cca *cca) 129 { 130 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 131 int ret; 132 133 ASSERT_RTNL(); 134 135 if (wpan_phy_cca_cmp(&wpan_phy->cca, cca)) 136 return 0; 137 138 ret = drv_set_cca_mode(local, cca); 139 if (!ret) 140 wpan_phy->cca = *cca; 141 142 return ret; 143 } 144 145 static int 146 ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) 147 { 148 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 149 int ret; 150 151 ASSERT_RTNL(); 152 153 if (wpan_phy->cca_ed_level == ed_level) 154 return 0; 155 156 ret = drv_set_cca_ed_level(local, ed_level); 157 if (!ret) 158 wpan_phy->cca_ed_level = ed_level; 159 160 return ret; 161 } 162 163 static int 164 ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) 165 { 166 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 167 int ret; 168 169 ASSERT_RTNL(); 170 171 if (wpan_phy->transmit_power == power) 172 return 0; 173 174 ret = drv_set_tx_power(local, power); 175 if (!ret) 176 wpan_phy->transmit_power = power; 177 178 return ret; 179 } 180 181 static int 182 ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 183 __le16 pan_id) 184 { 185 int ret; 186 187 ASSERT_RTNL(); 188 189 if (wpan_dev->pan_id == pan_id) 190 return 0; 191 192 ret = mac802154_wpan_update_llsec(wpan_dev->netdev); 193 if (!ret) 194 wpan_dev->pan_id = pan_id; 195 196 return ret; 197 } 198 199 static int 200 ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, 201 struct wpan_dev *wpan_dev, 202 u8 min_be, u8 max_be) 203 { 204 ASSERT_RTNL(); 205 206 wpan_dev->min_be = min_be; 207 wpan_dev->max_be = max_be; 208 return 0; 209 } 210 211 static int 212 ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 213 __le16 short_addr) 214 { 215 ASSERT_RTNL(); 216 217 wpan_dev->short_addr = short_addr; 218 return 0; 219 } 220 221 static int 222 ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, 223 struct wpan_dev *wpan_dev, 224 u8 max_csma_backoffs) 225 { 226 ASSERT_RTNL(); 227 228 wpan_dev->csma_retries = max_csma_backoffs; 229 return 0; 230 } 231 232 static int 233 ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, 234 struct wpan_dev *wpan_dev, 235 s8 max_frame_retries) 236 { 237 ASSERT_RTNL(); 238 239 wpan_dev->frame_retries = max_frame_retries; 240 return 0; 241 } 242 243 static int 244 ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 245 bool mode) 246 { 247 ASSERT_RTNL(); 248 249 wpan_dev->lbt = mode; 250 return 0; 251 } 252 253 static int 254 ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, 255 struct wpan_dev *wpan_dev, bool ackreq) 256 { 257 ASSERT_RTNL(); 258 259 wpan_dev->ackreq = ackreq; 260 return 0; 261 } 262 263 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 264 static void 265 ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, 266 struct wpan_dev *wpan_dev, 267 struct ieee802154_llsec_table **table) 268 { 269 struct net_device *dev = wpan_dev->netdev; 270 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 271 272 *table = &sdata->sec.table; 273 } 274 275 static void 276 ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, 277 struct wpan_dev *wpan_dev) 278 { 279 struct net_device *dev = wpan_dev->netdev; 280 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 281 282 mutex_lock(&sdata->sec_mtx); 283 } 284 285 static void 286 ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, 287 struct wpan_dev *wpan_dev) 288 { 289 struct net_device *dev = wpan_dev->netdev; 290 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 291 292 mutex_unlock(&sdata->sec_mtx); 293 } 294 295 static int 296 ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, 297 struct wpan_dev *wpan_dev, 298 const struct ieee802154_llsec_params *params, 299 int changed) 300 { 301 struct net_device *dev = wpan_dev->netdev; 302 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 303 int res; 304 305 mutex_lock(&sdata->sec_mtx); 306 res = mac802154_llsec_set_params(&sdata->sec, params, changed); 307 mutex_unlock(&sdata->sec_mtx); 308 309 return res; 310 } 311 312 static int 313 ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, 314 struct wpan_dev *wpan_dev, 315 struct ieee802154_llsec_params *params) 316 { 317 struct net_device *dev = wpan_dev->netdev; 318 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 319 int res; 320 321 mutex_lock(&sdata->sec_mtx); 322 res = mac802154_llsec_get_params(&sdata->sec, params); 323 mutex_unlock(&sdata->sec_mtx); 324 325 return res; 326 } 327 328 static int 329 ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 330 const struct ieee802154_llsec_key_id *id, 331 const struct ieee802154_llsec_key *key) 332 { 333 struct net_device *dev = wpan_dev->netdev; 334 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 335 int res; 336 337 mutex_lock(&sdata->sec_mtx); 338 res = mac802154_llsec_key_add(&sdata->sec, id, key); 339 mutex_unlock(&sdata->sec_mtx); 340 341 return res; 342 } 343 344 static int 345 ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 346 const struct ieee802154_llsec_key_id *id) 347 { 348 struct net_device *dev = wpan_dev->netdev; 349 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 350 int res; 351 352 mutex_lock(&sdata->sec_mtx); 353 res = mac802154_llsec_key_del(&sdata->sec, id); 354 mutex_unlock(&sdata->sec_mtx); 355 356 return res; 357 } 358 359 static int 360 ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 361 const struct ieee802154_llsec_seclevel *sl) 362 { 363 struct net_device *dev = wpan_dev->netdev; 364 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 365 int res; 366 367 mutex_lock(&sdata->sec_mtx); 368 res = mac802154_llsec_seclevel_add(&sdata->sec, sl); 369 mutex_unlock(&sdata->sec_mtx); 370 371 return res; 372 } 373 374 static int 375 ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 376 const struct ieee802154_llsec_seclevel *sl) 377 { 378 struct net_device *dev = wpan_dev->netdev; 379 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 380 int res; 381 382 mutex_lock(&sdata->sec_mtx); 383 res = mac802154_llsec_seclevel_del(&sdata->sec, sl); 384 mutex_unlock(&sdata->sec_mtx); 385 386 return res; 387 } 388 389 static int 390 ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 391 const struct ieee802154_llsec_device *dev_desc) 392 { 393 struct net_device *dev = wpan_dev->netdev; 394 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 395 int res; 396 397 mutex_lock(&sdata->sec_mtx); 398 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc); 399 mutex_unlock(&sdata->sec_mtx); 400 401 return res; 402 } 403 404 static int 405 ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 406 __le64 extended_addr) 407 { 408 struct net_device *dev = wpan_dev->netdev; 409 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 410 int res; 411 412 mutex_lock(&sdata->sec_mtx); 413 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr); 414 mutex_unlock(&sdata->sec_mtx); 415 416 return res; 417 } 418 419 static int 420 ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 421 __le64 extended_addr, 422 const struct ieee802154_llsec_device_key *key) 423 { 424 struct net_device *dev = wpan_dev->netdev; 425 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 426 int res; 427 428 mutex_lock(&sdata->sec_mtx); 429 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key); 430 mutex_unlock(&sdata->sec_mtx); 431 432 return res; 433 } 434 435 static int 436 ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 437 __le64 extended_addr, 438 const struct ieee802154_llsec_device_key *key) 439 { 440 struct net_device *dev = wpan_dev->netdev; 441 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 442 int res; 443 444 mutex_lock(&sdata->sec_mtx); 445 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key); 446 mutex_unlock(&sdata->sec_mtx); 447 448 return res; 449 } 450 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 451 452 const struct cfg802154_ops mac802154_config_ops = { 453 .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, 454 .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, 455 .suspend = ieee802154_suspend, 456 .resume = ieee802154_resume, 457 .add_virtual_intf = ieee802154_add_iface, 458 .del_virtual_intf = ieee802154_del_iface, 459 .set_channel = ieee802154_set_channel, 460 .set_cca_mode = ieee802154_set_cca_mode, 461 .set_cca_ed_level = ieee802154_set_cca_ed_level, 462 .set_tx_power = ieee802154_set_tx_power, 463 .set_pan_id = ieee802154_set_pan_id, 464 .set_short_addr = ieee802154_set_short_addr, 465 .set_backoff_exponent = ieee802154_set_backoff_exponent, 466 .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs, 467 .set_max_frame_retries = ieee802154_set_max_frame_retries, 468 .set_lbt_mode = ieee802154_set_lbt_mode, 469 .set_ackreq_default = ieee802154_set_ackreq_default, 470 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 471 .get_llsec_table = ieee802154_get_llsec_table, 472 .lock_llsec_table = ieee802154_lock_llsec_table, 473 .unlock_llsec_table = ieee802154_unlock_llsec_table, 474 /* TODO above */ 475 .set_llsec_params = ieee802154_set_llsec_params, 476 .get_llsec_params = ieee802154_get_llsec_params, 477 .add_llsec_key = ieee802154_add_llsec_key, 478 .del_llsec_key = ieee802154_del_llsec_key, 479 .add_seclevel = ieee802154_add_seclevel, 480 .del_seclevel = ieee802154_del_seclevel, 481 .add_device = ieee802154_add_device, 482 .del_device = ieee802154_del_device, 483 .add_devkey = ieee802154_add_devkey, 484 .del_devkey = ieee802154_del_devkey, 485 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 486 }; 487