cfg.c 11 KB

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