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 ieee802154_configure_durations(wpan_phy); 122 } 123 124 return ret; 125 } 126 127 static int 128 ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, 129 const struct wpan_phy_cca *cca) 130 { 131 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 132 int ret; 133 134 ASSERT_RTNL(); 135 136 if (wpan_phy_cca_cmp(&wpan_phy->cca, cca)) 137 return 0; 138 139 ret = drv_set_cca_mode(local, cca); 140 if (!ret) 141 wpan_phy->cca = *cca; 142 143 return ret; 144 } 145 146 static int 147 ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) 148 { 149 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 150 int ret; 151 152 ASSERT_RTNL(); 153 154 if (wpan_phy->cca_ed_level == ed_level) 155 return 0; 156 157 ret = drv_set_cca_ed_level(local, ed_level); 158 if (!ret) 159 wpan_phy->cca_ed_level = ed_level; 160 161 return ret; 162 } 163 164 static int 165 ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) 166 { 167 struct ieee802154_local *local = wpan_phy_priv(wpan_phy); 168 int ret; 169 170 ASSERT_RTNL(); 171 172 if (wpan_phy->transmit_power == power) 173 return 0; 174 175 ret = drv_set_tx_power(local, power); 176 if (!ret) 177 wpan_phy->transmit_power = power; 178 179 return ret; 180 } 181 182 static int 183 ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 184 __le16 pan_id) 185 { 186 int ret; 187 188 ASSERT_RTNL(); 189 190 if (wpan_dev->pan_id == pan_id) 191 return 0; 192 193 ret = mac802154_wpan_update_llsec(wpan_dev->netdev); 194 if (!ret) 195 wpan_dev->pan_id = pan_id; 196 197 return ret; 198 } 199 200 static int 201 ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, 202 struct wpan_dev *wpan_dev, 203 u8 min_be, u8 max_be) 204 { 205 ASSERT_RTNL(); 206 207 wpan_dev->min_be = min_be; 208 wpan_dev->max_be = max_be; 209 return 0; 210 } 211 212 static int 213 ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 214 __le16 short_addr) 215 { 216 ASSERT_RTNL(); 217 218 wpan_dev->short_addr = short_addr; 219 return 0; 220 } 221 222 static int 223 ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, 224 struct wpan_dev *wpan_dev, 225 u8 max_csma_backoffs) 226 { 227 ASSERT_RTNL(); 228 229 wpan_dev->csma_retries = max_csma_backoffs; 230 return 0; 231 } 232 233 static int 234 ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, 235 struct wpan_dev *wpan_dev, 236 s8 max_frame_retries) 237 { 238 ASSERT_RTNL(); 239 240 wpan_dev->frame_retries = max_frame_retries; 241 return 0; 242 } 243 244 static int 245 ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 246 bool mode) 247 { 248 ASSERT_RTNL(); 249 250 wpan_dev->lbt = mode; 251 return 0; 252 } 253 254 static int 255 ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, 256 struct wpan_dev *wpan_dev, bool ackreq) 257 { 258 ASSERT_RTNL(); 259 260 wpan_dev->ackreq = ackreq; 261 return 0; 262 } 263 264 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 265 static void 266 ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, 267 struct wpan_dev *wpan_dev, 268 struct ieee802154_llsec_table **table) 269 { 270 struct net_device *dev = wpan_dev->netdev; 271 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 272 273 *table = &sdata->sec.table; 274 } 275 276 static void 277 ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, 278 struct wpan_dev *wpan_dev) 279 { 280 struct net_device *dev = wpan_dev->netdev; 281 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 282 283 mutex_lock(&sdata->sec_mtx); 284 } 285 286 static void 287 ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, 288 struct wpan_dev *wpan_dev) 289 { 290 struct net_device *dev = wpan_dev->netdev; 291 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 292 293 mutex_unlock(&sdata->sec_mtx); 294 } 295 296 static int 297 ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, 298 struct wpan_dev *wpan_dev, 299 const struct ieee802154_llsec_params *params, 300 int changed) 301 { 302 struct net_device *dev = wpan_dev->netdev; 303 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 304 int res; 305 306 mutex_lock(&sdata->sec_mtx); 307 res = mac802154_llsec_set_params(&sdata->sec, params, changed); 308 mutex_unlock(&sdata->sec_mtx); 309 310 return res; 311 } 312 313 static int 314 ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, 315 struct wpan_dev *wpan_dev, 316 struct ieee802154_llsec_params *params) 317 { 318 struct net_device *dev = wpan_dev->netdev; 319 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 320 int res; 321 322 mutex_lock(&sdata->sec_mtx); 323 res = mac802154_llsec_get_params(&sdata->sec, params); 324 mutex_unlock(&sdata->sec_mtx); 325 326 return res; 327 } 328 329 static int 330 ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 331 const struct ieee802154_llsec_key_id *id, 332 const struct ieee802154_llsec_key *key) 333 { 334 struct net_device *dev = wpan_dev->netdev; 335 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 336 int res; 337 338 mutex_lock(&sdata->sec_mtx); 339 res = mac802154_llsec_key_add(&sdata->sec, id, key); 340 mutex_unlock(&sdata->sec_mtx); 341 342 return res; 343 } 344 345 static int 346 ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 347 const struct ieee802154_llsec_key_id *id) 348 { 349 struct net_device *dev = wpan_dev->netdev; 350 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 351 int res; 352 353 mutex_lock(&sdata->sec_mtx); 354 res = mac802154_llsec_key_del(&sdata->sec, id); 355 mutex_unlock(&sdata->sec_mtx); 356 357 return res; 358 } 359 360 static int 361 ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 362 const struct ieee802154_llsec_seclevel *sl) 363 { 364 struct net_device *dev = wpan_dev->netdev; 365 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 366 int res; 367 368 mutex_lock(&sdata->sec_mtx); 369 res = mac802154_llsec_seclevel_add(&sdata->sec, sl); 370 mutex_unlock(&sdata->sec_mtx); 371 372 return res; 373 } 374 375 static int 376 ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 377 const struct ieee802154_llsec_seclevel *sl) 378 { 379 struct net_device *dev = wpan_dev->netdev; 380 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 381 int res; 382 383 mutex_lock(&sdata->sec_mtx); 384 res = mac802154_llsec_seclevel_del(&sdata->sec, sl); 385 mutex_unlock(&sdata->sec_mtx); 386 387 return res; 388 } 389 390 static int 391 ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 392 const struct ieee802154_llsec_device *dev_desc) 393 { 394 struct net_device *dev = wpan_dev->netdev; 395 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 396 int res; 397 398 mutex_lock(&sdata->sec_mtx); 399 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc); 400 mutex_unlock(&sdata->sec_mtx); 401 402 return res; 403 } 404 405 static int 406 ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 407 __le64 extended_addr) 408 { 409 struct net_device *dev = wpan_dev->netdev; 410 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 411 int res; 412 413 mutex_lock(&sdata->sec_mtx); 414 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr); 415 mutex_unlock(&sdata->sec_mtx); 416 417 return res; 418 } 419 420 static int 421 ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 422 __le64 extended_addr, 423 const struct ieee802154_llsec_device_key *key) 424 { 425 struct net_device *dev = wpan_dev->netdev; 426 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 427 int res; 428 429 mutex_lock(&sdata->sec_mtx); 430 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key); 431 mutex_unlock(&sdata->sec_mtx); 432 433 return res; 434 } 435 436 static int 437 ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 438 __le64 extended_addr, 439 const struct ieee802154_llsec_device_key *key) 440 { 441 struct net_device *dev = wpan_dev->netdev; 442 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 443 int res; 444 445 mutex_lock(&sdata->sec_mtx); 446 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key); 447 mutex_unlock(&sdata->sec_mtx); 448 449 return res; 450 } 451 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 452 453 const struct cfg802154_ops mac802154_config_ops = { 454 .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, 455 .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, 456 .suspend = ieee802154_suspend, 457 .resume = ieee802154_resume, 458 .add_virtual_intf = ieee802154_add_iface, 459 .del_virtual_intf = ieee802154_del_iface, 460 .set_channel = ieee802154_set_channel, 461 .set_cca_mode = ieee802154_set_cca_mode, 462 .set_cca_ed_level = ieee802154_set_cca_ed_level, 463 .set_tx_power = ieee802154_set_tx_power, 464 .set_pan_id = ieee802154_set_pan_id, 465 .set_short_addr = ieee802154_set_short_addr, 466 .set_backoff_exponent = ieee802154_set_backoff_exponent, 467 .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs, 468 .set_max_frame_retries = ieee802154_set_max_frame_retries, 469 .set_lbt_mode = ieee802154_set_lbt_mode, 470 .set_ackreq_default = ieee802154_set_ackreq_default, 471 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 472 .get_llsec_table = ieee802154_get_llsec_table, 473 .lock_llsec_table = ieee802154_lock_llsec_table, 474 .unlock_llsec_table = ieee802154_unlock_llsec_table, 475 /* TODO above */ 476 .set_llsec_params = ieee802154_set_llsec_params, 477 .get_llsec_params = ieee802154_get_llsec_params, 478 .add_llsec_key = ieee802154_add_llsec_key, 479 .del_llsec_key = ieee802154_del_llsec_key, 480 .add_seclevel = ieee802154_add_seclevel, 481 .del_seclevel = ieee802154_del_seclevel, 482 .add_device = ieee802154_add_device, 483 .del_device = ieee802154_del_device, 484 .add_devkey = ieee802154_add_devkey, 485 .del_devkey = ieee802154_del_devkey, 486 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 487 }; 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