cfg.c (11724B)
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 17static struct net_device * 18ieee802154_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 33static 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 42static 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 55suspend: 56 local->suspended = true; 57 return 0; 58} 59 60static 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 74wake_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 84static int 85ieee802154_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 97static int 98ieee802154_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 105static int 106ieee802154_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 127static int 128ieee802154_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 146static int 147ieee802154_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 164static int 165ieee802154_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 182static int 183ieee802154_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 200static int 201ieee802154_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 212static int 213ieee802154_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 222static int 223ieee802154_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 233static int 234ieee802154_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 244static int 245ieee802154_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 254static int 255ieee802154_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 265static void 266ieee802154_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 276static void 277ieee802154_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 286static void 287ieee802154_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 296static int 297ieee802154_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 313static int 314ieee802154_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 329static int 330ieee802154_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 345static int 346ieee802154_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 360static int 361ieee802154_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 375static int 376ieee802154_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 390static int 391ieee802154_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 405static int 406ieee802154_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 420static int 421ieee802154_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 436static int 437ieee802154_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 453const 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};