cfg.c 37 KB

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  1. /*
  2. * mac80211 configuration hooks for cfg80211
  3. *
  4. * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
  5. *
  6. * This file is GPLv2 as found in COPYING.
  7. */
  8. #include <linux/ieee80211.h>
  9. #include <linux/nl80211.h>
  10. #include <linux/rtnetlink.h>
  11. #include <net/net_namespace.h>
  12. #include <linux/rcupdate.h>
  13. #include <net/cfg80211.h>
  14. #include "ieee80211_i.h"
  15. #include "driver-ops.h"
  16. #include "cfg.h"
  17. #include "rate.h"
  18. #include "mesh.h"
  19. static bool nl80211_type_check(enum nl80211_iftype type)
  20. {
  21. switch (type) {
  22. case NL80211_IFTYPE_ADHOC:
  23. case NL80211_IFTYPE_STATION:
  24. case NL80211_IFTYPE_MONITOR:
  25. #ifdef CONFIG_MAC80211_MESH
  26. case NL80211_IFTYPE_MESH_POINT:
  27. #endif
  28. case NL80211_IFTYPE_AP:
  29. case NL80211_IFTYPE_AP_VLAN:
  30. case NL80211_IFTYPE_WDS:
  31. return true;
  32. default:
  33. return false;
  34. }
  35. }
  36. static bool nl80211_params_check(enum nl80211_iftype type,
  37. struct vif_params *params)
  38. {
  39. if (!nl80211_type_check(type))
  40. return false;
  41. return true;
  42. }
  43. static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  44. enum nl80211_iftype type, u32 *flags,
  45. struct vif_params *params)
  46. {
  47. struct ieee80211_local *local = wiphy_priv(wiphy);
  48. struct net_device *dev;
  49. struct ieee80211_sub_if_data *sdata;
  50. int err;
  51. if (!nl80211_params_check(type, params))
  52. return -EINVAL;
  53. err = ieee80211_if_add(local, name, &dev, type, params);
  54. if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  55. return err;
  56. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  57. sdata->u.mntr_flags = *flags;
  58. return 0;
  59. }
  60. static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  61. {
  62. ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  63. return 0;
  64. }
  65. static int ieee80211_change_iface(struct wiphy *wiphy,
  66. struct net_device *dev,
  67. enum nl80211_iftype type, u32 *flags,
  68. struct vif_params *params)
  69. {
  70. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  71. int ret;
  72. if (ieee80211_sdata_running(sdata))
  73. return -EBUSY;
  74. if (!nl80211_params_check(type, params))
  75. return -EINVAL;
  76. ret = ieee80211_if_change_type(sdata, type);
  77. if (ret)
  78. return ret;
  79. if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  80. ieee80211_sdata_set_mesh_id(sdata,
  81. params->mesh_id_len,
  82. params->mesh_id);
  83. if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
  84. return 0;
  85. if (type == NL80211_IFTYPE_AP_VLAN &&
  86. params && params->use_4addr == 0)
  87. rcu_assign_pointer(sdata->u.vlan.sta, NULL);
  88. else if (type == NL80211_IFTYPE_STATION &&
  89. params && params->use_4addr >= 0)
  90. sdata->u.mgd.use_4addr = params->use_4addr;
  91. sdata->u.mntr_flags = *flags;
  92. return 0;
  93. }
  94. static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
  95. u8 key_idx, const u8 *mac_addr,
  96. struct key_params *params)
  97. {
  98. struct ieee80211_sub_if_data *sdata;
  99. struct sta_info *sta = NULL;
  100. enum ieee80211_key_alg alg;
  101. struct ieee80211_key *key;
  102. int err;
  103. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  104. switch (params->cipher) {
  105. case WLAN_CIPHER_SUITE_WEP40:
  106. case WLAN_CIPHER_SUITE_WEP104:
  107. alg = ALG_WEP;
  108. break;
  109. case WLAN_CIPHER_SUITE_TKIP:
  110. alg = ALG_TKIP;
  111. break;
  112. case WLAN_CIPHER_SUITE_CCMP:
  113. alg = ALG_CCMP;
  114. break;
  115. case WLAN_CIPHER_SUITE_AES_CMAC:
  116. alg = ALG_AES_CMAC;
  117. break;
  118. default:
  119. return -EINVAL;
  120. }
  121. key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
  122. params->seq_len, params->seq);
  123. if (!key)
  124. return -ENOMEM;
  125. rcu_read_lock();
  126. if (mac_addr) {
  127. sta = sta_info_get_bss(sdata, mac_addr);
  128. if (!sta) {
  129. ieee80211_key_free(key);
  130. err = -ENOENT;
  131. goto out_unlock;
  132. }
  133. }
  134. ieee80211_key_link(key, sdata, sta);
  135. err = 0;
  136. out_unlock:
  137. rcu_read_unlock();
  138. return err;
  139. }
  140. static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
  141. u8 key_idx, const u8 *mac_addr)
  142. {
  143. struct ieee80211_sub_if_data *sdata;
  144. struct sta_info *sta;
  145. int ret;
  146. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  147. rcu_read_lock();
  148. if (mac_addr) {
  149. ret = -ENOENT;
  150. sta = sta_info_get_bss(sdata, mac_addr);
  151. if (!sta)
  152. goto out_unlock;
  153. if (sta->key) {
  154. ieee80211_key_free(sta->key);
  155. WARN_ON(sta->key);
  156. ret = 0;
  157. }
  158. goto out_unlock;
  159. }
  160. if (!sdata->keys[key_idx]) {
  161. ret = -ENOENT;
  162. goto out_unlock;
  163. }
  164. ieee80211_key_free(sdata->keys[key_idx]);
  165. WARN_ON(sdata->keys[key_idx]);
  166. ret = 0;
  167. out_unlock:
  168. rcu_read_unlock();
  169. return ret;
  170. }
  171. static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
  172. u8 key_idx, const u8 *mac_addr, void *cookie,
  173. void (*callback)(void *cookie,
  174. struct key_params *params))
  175. {
  176. struct ieee80211_sub_if_data *sdata;
  177. struct sta_info *sta = NULL;
  178. u8 seq[6] = {0};
  179. struct key_params params;
  180. struct ieee80211_key *key;
  181. u32 iv32;
  182. u16 iv16;
  183. int err = -ENOENT;
  184. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  185. rcu_read_lock();
  186. if (mac_addr) {
  187. sta = sta_info_get_bss(sdata, mac_addr);
  188. if (!sta)
  189. goto out;
  190. key = sta->key;
  191. } else
  192. key = sdata->keys[key_idx];
  193. if (!key)
  194. goto out;
  195. memset(&params, 0, sizeof(params));
  196. switch (key->conf.alg) {
  197. case ALG_TKIP:
  198. params.cipher = WLAN_CIPHER_SUITE_TKIP;
  199. iv32 = key->u.tkip.tx.iv32;
  200. iv16 = key->u.tkip.tx.iv16;
  201. if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
  202. drv_get_tkip_seq(sdata->local,
  203. key->conf.hw_key_idx,
  204. &iv32, &iv16);
  205. seq[0] = iv16 & 0xff;
  206. seq[1] = (iv16 >> 8) & 0xff;
  207. seq[2] = iv32 & 0xff;
  208. seq[3] = (iv32 >> 8) & 0xff;
  209. seq[4] = (iv32 >> 16) & 0xff;
  210. seq[5] = (iv32 >> 24) & 0xff;
  211. params.seq = seq;
  212. params.seq_len = 6;
  213. break;
  214. case ALG_CCMP:
  215. params.cipher = WLAN_CIPHER_SUITE_CCMP;
  216. seq[0] = key->u.ccmp.tx_pn[5];
  217. seq[1] = key->u.ccmp.tx_pn[4];
  218. seq[2] = key->u.ccmp.tx_pn[3];
  219. seq[3] = key->u.ccmp.tx_pn[2];
  220. seq[4] = key->u.ccmp.tx_pn[1];
  221. seq[5] = key->u.ccmp.tx_pn[0];
  222. params.seq = seq;
  223. params.seq_len = 6;
  224. break;
  225. case ALG_WEP:
  226. if (key->conf.keylen == 5)
  227. params.cipher = WLAN_CIPHER_SUITE_WEP40;
  228. else
  229. params.cipher = WLAN_CIPHER_SUITE_WEP104;
  230. break;
  231. case ALG_AES_CMAC:
  232. params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
  233. seq[0] = key->u.aes_cmac.tx_pn[5];
  234. seq[1] = key->u.aes_cmac.tx_pn[4];
  235. seq[2] = key->u.aes_cmac.tx_pn[3];
  236. seq[3] = key->u.aes_cmac.tx_pn[2];
  237. seq[4] = key->u.aes_cmac.tx_pn[1];
  238. seq[5] = key->u.aes_cmac.tx_pn[0];
  239. params.seq = seq;
  240. params.seq_len = 6;
  241. break;
  242. }
  243. params.key = key->conf.key;
  244. params.key_len = key->conf.keylen;
  245. callback(cookie, &params);
  246. err = 0;
  247. out:
  248. rcu_read_unlock();
  249. return err;
  250. }
  251. static int ieee80211_config_default_key(struct wiphy *wiphy,
  252. struct net_device *dev,
  253. u8 key_idx)
  254. {
  255. struct ieee80211_sub_if_data *sdata;
  256. rcu_read_lock();
  257. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  258. ieee80211_set_default_key(sdata, key_idx);
  259. rcu_read_unlock();
  260. return 0;
  261. }
  262. static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
  263. struct net_device *dev,
  264. u8 key_idx)
  265. {
  266. struct ieee80211_sub_if_data *sdata;
  267. rcu_read_lock();
  268. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  269. ieee80211_set_default_mgmt_key(sdata, key_idx);
  270. rcu_read_unlock();
  271. return 0;
  272. }
  273. static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
  274. {
  275. struct ieee80211_sub_if_data *sdata = sta->sdata;
  276. sinfo->generation = sdata->local->sta_generation;
  277. sinfo->filled = STATION_INFO_INACTIVE_TIME |
  278. STATION_INFO_RX_BYTES |
  279. STATION_INFO_TX_BYTES |
  280. STATION_INFO_RX_PACKETS |
  281. STATION_INFO_TX_PACKETS |
  282. STATION_INFO_TX_BITRATE;
  283. sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
  284. sinfo->rx_bytes = sta->rx_bytes;
  285. sinfo->tx_bytes = sta->tx_bytes;
  286. sinfo->rx_packets = sta->rx_packets;
  287. sinfo->tx_packets = sta->tx_packets;
  288. if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
  289. (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
  290. sinfo->filled |= STATION_INFO_SIGNAL;
  291. sinfo->signal = (s8)sta->last_signal;
  292. }
  293. sinfo->txrate.flags = 0;
  294. if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
  295. sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
  296. if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
  297. sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
  298. if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
  299. sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
  300. if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
  301. struct ieee80211_supported_band *sband;
  302. sband = sta->local->hw.wiphy->bands[
  303. sta->local->hw.conf.channel->band];
  304. sinfo->txrate.legacy =
  305. sband->bitrates[sta->last_tx_rate.idx].bitrate;
  306. } else
  307. sinfo->txrate.mcs = sta->last_tx_rate.idx;
  308. if (ieee80211_vif_is_mesh(&sdata->vif)) {
  309. #ifdef CONFIG_MAC80211_MESH
  310. sinfo->filled |= STATION_INFO_LLID |
  311. STATION_INFO_PLID |
  312. STATION_INFO_PLINK_STATE;
  313. sinfo->llid = le16_to_cpu(sta->llid);
  314. sinfo->plid = le16_to_cpu(sta->plid);
  315. sinfo->plink_state = sta->plink_state;
  316. #endif
  317. }
  318. }
  319. static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
  320. int idx, u8 *mac, struct station_info *sinfo)
  321. {
  322. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  323. struct sta_info *sta;
  324. int ret = -ENOENT;
  325. rcu_read_lock();
  326. sta = sta_info_get_by_idx(sdata, idx);
  327. if (sta) {
  328. ret = 0;
  329. memcpy(mac, sta->sta.addr, ETH_ALEN);
  330. sta_set_sinfo(sta, sinfo);
  331. }
  332. rcu_read_unlock();
  333. return ret;
  334. }
  335. static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
  336. u8 *mac, struct station_info *sinfo)
  337. {
  338. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  339. struct sta_info *sta;
  340. int ret = -ENOENT;
  341. rcu_read_lock();
  342. sta = sta_info_get_bss(sdata, mac);
  343. if (sta) {
  344. ret = 0;
  345. sta_set_sinfo(sta, sinfo);
  346. }
  347. rcu_read_unlock();
  348. return ret;
  349. }
  350. /*
  351. * This handles both adding a beacon and setting new beacon info
  352. */
  353. static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
  354. struct beacon_parameters *params)
  355. {
  356. struct beacon_data *new, *old;
  357. int new_head_len, new_tail_len;
  358. int size;
  359. int err = -EINVAL;
  360. old = sdata->u.ap.beacon;
  361. /* head must not be zero-length */
  362. if (params->head && !params->head_len)
  363. return -EINVAL;
  364. /*
  365. * This is a kludge. beacon interval should really be part
  366. * of the beacon information.
  367. */
  368. if (params->interval &&
  369. (sdata->vif.bss_conf.beacon_int != params->interval)) {
  370. sdata->vif.bss_conf.beacon_int = params->interval;
  371. ieee80211_bss_info_change_notify(sdata,
  372. BSS_CHANGED_BEACON_INT);
  373. }
  374. /* Need to have a beacon head if we don't have one yet */
  375. if (!params->head && !old)
  376. return err;
  377. /* sorry, no way to start beaconing without dtim period */
  378. if (!params->dtim_period && !old)
  379. return err;
  380. /* new or old head? */
  381. if (params->head)
  382. new_head_len = params->head_len;
  383. else
  384. new_head_len = old->head_len;
  385. /* new or old tail? */
  386. if (params->tail || !old)
  387. /* params->tail_len will be zero for !params->tail */
  388. new_tail_len = params->tail_len;
  389. else
  390. new_tail_len = old->tail_len;
  391. size = sizeof(*new) + new_head_len + new_tail_len;
  392. new = kzalloc(size, GFP_KERNEL);
  393. if (!new)
  394. return -ENOMEM;
  395. /* start filling the new info now */
  396. /* new or old dtim period? */
  397. if (params->dtim_period)
  398. new->dtim_period = params->dtim_period;
  399. else
  400. new->dtim_period = old->dtim_period;
  401. /*
  402. * pointers go into the block we allocated,
  403. * memory is | beacon_data | head | tail |
  404. */
  405. new->head = ((u8 *) new) + sizeof(*new);
  406. new->tail = new->head + new_head_len;
  407. new->head_len = new_head_len;
  408. new->tail_len = new_tail_len;
  409. /* copy in head */
  410. if (params->head)
  411. memcpy(new->head, params->head, new_head_len);
  412. else
  413. memcpy(new->head, old->head, new_head_len);
  414. /* copy in optional tail */
  415. if (params->tail)
  416. memcpy(new->tail, params->tail, new_tail_len);
  417. else
  418. if (old)
  419. memcpy(new->tail, old->tail, new_tail_len);
  420. sdata->vif.bss_conf.dtim_period = new->dtim_period;
  421. rcu_assign_pointer(sdata->u.ap.beacon, new);
  422. synchronize_rcu();
  423. kfree(old);
  424. ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
  425. BSS_CHANGED_BEACON);
  426. return 0;
  427. }
  428. static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
  429. struct beacon_parameters *params)
  430. {
  431. struct ieee80211_sub_if_data *sdata;
  432. struct beacon_data *old;
  433. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  434. old = sdata->u.ap.beacon;
  435. if (old)
  436. return -EALREADY;
  437. return ieee80211_config_beacon(sdata, params);
  438. }
  439. static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
  440. struct beacon_parameters *params)
  441. {
  442. struct ieee80211_sub_if_data *sdata;
  443. struct beacon_data *old;
  444. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  445. old = sdata->u.ap.beacon;
  446. if (!old)
  447. return -ENOENT;
  448. return ieee80211_config_beacon(sdata, params);
  449. }
  450. static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
  451. {
  452. struct ieee80211_sub_if_data *sdata;
  453. struct beacon_data *old;
  454. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  455. old = sdata->u.ap.beacon;
  456. if (!old)
  457. return -ENOENT;
  458. rcu_assign_pointer(sdata->u.ap.beacon, NULL);
  459. synchronize_rcu();
  460. kfree(old);
  461. ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
  462. return 0;
  463. }
  464. /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
  465. struct iapp_layer2_update {
  466. u8 da[ETH_ALEN]; /* broadcast */
  467. u8 sa[ETH_ALEN]; /* STA addr */
  468. __be16 len; /* 6 */
  469. u8 dsap; /* 0 */
  470. u8 ssap; /* 0 */
  471. u8 control;
  472. u8 xid_info[3];
  473. } __attribute__ ((packed));
  474. static void ieee80211_send_layer2_update(struct sta_info *sta)
  475. {
  476. struct iapp_layer2_update *msg;
  477. struct sk_buff *skb;
  478. /* Send Level 2 Update Frame to update forwarding tables in layer 2
  479. * bridge devices */
  480. skb = dev_alloc_skb(sizeof(*msg));
  481. if (!skb)
  482. return;
  483. msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
  484. /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
  485. * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
  486. memset(msg->da, 0xff, ETH_ALEN);
  487. memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
  488. msg->len = htons(6);
  489. msg->dsap = 0;
  490. msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
  491. msg->control = 0xaf; /* XID response lsb.1111F101.
  492. * F=0 (no poll command; unsolicited frame) */
  493. msg->xid_info[0] = 0x81; /* XID format identifier */
  494. msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
  495. msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
  496. skb->dev = sta->sdata->dev;
  497. skb->protocol = eth_type_trans(skb, sta->sdata->dev);
  498. memset(skb->cb, 0, sizeof(skb->cb));
  499. netif_rx(skb);
  500. }
  501. static void sta_apply_parameters(struct ieee80211_local *local,
  502. struct sta_info *sta,
  503. struct station_parameters *params)
  504. {
  505. u32 rates;
  506. int i, j;
  507. struct ieee80211_supported_band *sband;
  508. struct ieee80211_sub_if_data *sdata = sta->sdata;
  509. u32 mask, set;
  510. sband = local->hw.wiphy->bands[local->oper_channel->band];
  511. spin_lock_bh(&sta->lock);
  512. mask = params->sta_flags_mask;
  513. set = params->sta_flags_set;
  514. if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
  515. sta->flags &= ~WLAN_STA_AUTHORIZED;
  516. if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
  517. sta->flags |= WLAN_STA_AUTHORIZED;
  518. }
  519. if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
  520. sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
  521. if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
  522. sta->flags |= WLAN_STA_SHORT_PREAMBLE;
  523. }
  524. if (mask & BIT(NL80211_STA_FLAG_WME)) {
  525. sta->flags &= ~WLAN_STA_WME;
  526. if (set & BIT(NL80211_STA_FLAG_WME))
  527. sta->flags |= WLAN_STA_WME;
  528. }
  529. if (mask & BIT(NL80211_STA_FLAG_MFP)) {
  530. sta->flags &= ~WLAN_STA_MFP;
  531. if (set & BIT(NL80211_STA_FLAG_MFP))
  532. sta->flags |= WLAN_STA_MFP;
  533. }
  534. spin_unlock_bh(&sta->lock);
  535. /*
  536. * cfg80211 validates this (1-2007) and allows setting the AID
  537. * only when creating a new station entry
  538. */
  539. if (params->aid)
  540. sta->sta.aid = params->aid;
  541. /*
  542. * FIXME: updating the following information is racy when this
  543. * function is called from ieee80211_change_station().
  544. * However, all this information should be static so
  545. * maybe we should just reject attemps to change it.
  546. */
  547. if (params->listen_interval >= 0)
  548. sta->listen_interval = params->listen_interval;
  549. if (params->supported_rates) {
  550. rates = 0;
  551. for (i = 0; i < params->supported_rates_len; i++) {
  552. int rate = (params->supported_rates[i] & 0x7f) * 5;
  553. for (j = 0; j < sband->n_bitrates; j++) {
  554. if (sband->bitrates[j].bitrate == rate)
  555. rates |= BIT(j);
  556. }
  557. }
  558. sta->sta.supp_rates[local->oper_channel->band] = rates;
  559. }
  560. if (params->ht_capa)
  561. ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
  562. params->ht_capa,
  563. &sta->sta.ht_cap);
  564. if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
  565. switch (params->plink_action) {
  566. case PLINK_ACTION_OPEN:
  567. mesh_plink_open(sta);
  568. break;
  569. case PLINK_ACTION_BLOCK:
  570. mesh_plink_block(sta);
  571. break;
  572. }
  573. }
  574. }
  575. static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
  576. u8 *mac, struct station_parameters *params)
  577. {
  578. struct ieee80211_local *local = wiphy_priv(wiphy);
  579. struct sta_info *sta;
  580. struct ieee80211_sub_if_data *sdata;
  581. int err;
  582. int layer2_update;
  583. if (params->vlan) {
  584. sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
  585. if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
  586. sdata->vif.type != NL80211_IFTYPE_AP)
  587. return -EINVAL;
  588. } else
  589. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  590. if (compare_ether_addr(mac, sdata->vif.addr) == 0)
  591. return -EINVAL;
  592. if (is_multicast_ether_addr(mac))
  593. return -EINVAL;
  594. sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
  595. if (!sta)
  596. return -ENOMEM;
  597. sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
  598. sta_apply_parameters(local, sta, params);
  599. rate_control_rate_init(sta);
  600. layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
  601. sdata->vif.type == NL80211_IFTYPE_AP;
  602. err = sta_info_insert_rcu(sta);
  603. if (err) {
  604. rcu_read_unlock();
  605. return err;
  606. }
  607. if (layer2_update)
  608. ieee80211_send_layer2_update(sta);
  609. rcu_read_unlock();
  610. return 0;
  611. }
  612. static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
  613. u8 *mac)
  614. {
  615. struct ieee80211_local *local = wiphy_priv(wiphy);
  616. struct ieee80211_sub_if_data *sdata;
  617. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  618. if (mac)
  619. return sta_info_destroy_addr_bss(sdata, mac);
  620. sta_info_flush(local, sdata);
  621. return 0;
  622. }
  623. static int ieee80211_change_station(struct wiphy *wiphy,
  624. struct net_device *dev,
  625. u8 *mac,
  626. struct station_parameters *params)
  627. {
  628. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  629. struct ieee80211_local *local = wiphy_priv(wiphy);
  630. struct sta_info *sta;
  631. struct ieee80211_sub_if_data *vlansdata;
  632. rcu_read_lock();
  633. sta = sta_info_get_bss(sdata, mac);
  634. if (!sta) {
  635. rcu_read_unlock();
  636. return -ENOENT;
  637. }
  638. if (params->vlan && params->vlan != sta->sdata->dev) {
  639. vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
  640. if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
  641. vlansdata->vif.type != NL80211_IFTYPE_AP) {
  642. rcu_read_unlock();
  643. return -EINVAL;
  644. }
  645. if (params->vlan->ieee80211_ptr->use_4addr) {
  646. if (vlansdata->u.vlan.sta) {
  647. rcu_read_unlock();
  648. return -EBUSY;
  649. }
  650. rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
  651. }
  652. sta->sdata = vlansdata;
  653. ieee80211_send_layer2_update(sta);
  654. }
  655. sta_apply_parameters(local, sta, params);
  656. rcu_read_unlock();
  657. return 0;
  658. }
  659. #ifdef CONFIG_MAC80211_MESH
  660. static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
  661. u8 *dst, u8 *next_hop)
  662. {
  663. struct ieee80211_sub_if_data *sdata;
  664. struct mesh_path *mpath;
  665. struct sta_info *sta;
  666. int err;
  667. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  668. rcu_read_lock();
  669. sta = sta_info_get(sdata, next_hop);
  670. if (!sta) {
  671. rcu_read_unlock();
  672. return -ENOENT;
  673. }
  674. err = mesh_path_add(dst, sdata);
  675. if (err) {
  676. rcu_read_unlock();
  677. return err;
  678. }
  679. mpath = mesh_path_lookup(dst, sdata);
  680. if (!mpath) {
  681. rcu_read_unlock();
  682. return -ENXIO;
  683. }
  684. mesh_path_fix_nexthop(mpath, sta);
  685. rcu_read_unlock();
  686. return 0;
  687. }
  688. static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
  689. u8 *dst)
  690. {
  691. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  692. if (dst)
  693. return mesh_path_del(dst, sdata);
  694. mesh_path_flush(sdata);
  695. return 0;
  696. }
  697. static int ieee80211_change_mpath(struct wiphy *wiphy,
  698. struct net_device *dev,
  699. u8 *dst, u8 *next_hop)
  700. {
  701. struct ieee80211_sub_if_data *sdata;
  702. struct mesh_path *mpath;
  703. struct sta_info *sta;
  704. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  705. rcu_read_lock();
  706. sta = sta_info_get(sdata, next_hop);
  707. if (!sta) {
  708. rcu_read_unlock();
  709. return -ENOENT;
  710. }
  711. mpath = mesh_path_lookup(dst, sdata);
  712. if (!mpath) {
  713. rcu_read_unlock();
  714. return -ENOENT;
  715. }
  716. mesh_path_fix_nexthop(mpath, sta);
  717. rcu_read_unlock();
  718. return 0;
  719. }
  720. static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
  721. struct mpath_info *pinfo)
  722. {
  723. if (mpath->next_hop)
  724. memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
  725. else
  726. memset(next_hop, 0, ETH_ALEN);
  727. pinfo->generation = mesh_paths_generation;
  728. pinfo->filled = MPATH_INFO_FRAME_QLEN |
  729. MPATH_INFO_SN |
  730. MPATH_INFO_METRIC |
  731. MPATH_INFO_EXPTIME |
  732. MPATH_INFO_DISCOVERY_TIMEOUT |
  733. MPATH_INFO_DISCOVERY_RETRIES |
  734. MPATH_INFO_FLAGS;
  735. pinfo->frame_qlen = mpath->frame_queue.qlen;
  736. pinfo->sn = mpath->sn;
  737. pinfo->metric = mpath->metric;
  738. if (time_before(jiffies, mpath->exp_time))
  739. pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
  740. pinfo->discovery_timeout =
  741. jiffies_to_msecs(mpath->discovery_timeout);
  742. pinfo->discovery_retries = mpath->discovery_retries;
  743. pinfo->flags = 0;
  744. if (mpath->flags & MESH_PATH_ACTIVE)
  745. pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
  746. if (mpath->flags & MESH_PATH_RESOLVING)
  747. pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
  748. if (mpath->flags & MESH_PATH_SN_VALID)
  749. pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
  750. if (mpath->flags & MESH_PATH_FIXED)
  751. pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
  752. if (mpath->flags & MESH_PATH_RESOLVING)
  753. pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
  754. pinfo->flags = mpath->flags;
  755. }
  756. static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
  757. u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
  758. {
  759. struct ieee80211_sub_if_data *sdata;
  760. struct mesh_path *mpath;
  761. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  762. rcu_read_lock();
  763. mpath = mesh_path_lookup(dst, sdata);
  764. if (!mpath) {
  765. rcu_read_unlock();
  766. return -ENOENT;
  767. }
  768. memcpy(dst, mpath->dst, ETH_ALEN);
  769. mpath_set_pinfo(mpath, next_hop, pinfo);
  770. rcu_read_unlock();
  771. return 0;
  772. }
  773. static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
  774. int idx, u8 *dst, u8 *next_hop,
  775. struct mpath_info *pinfo)
  776. {
  777. struct ieee80211_sub_if_data *sdata;
  778. struct mesh_path *mpath;
  779. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  780. rcu_read_lock();
  781. mpath = mesh_path_lookup_by_idx(idx, sdata);
  782. if (!mpath) {
  783. rcu_read_unlock();
  784. return -ENOENT;
  785. }
  786. memcpy(dst, mpath->dst, ETH_ALEN);
  787. mpath_set_pinfo(mpath, next_hop, pinfo);
  788. rcu_read_unlock();
  789. return 0;
  790. }
  791. static int ieee80211_get_mesh_params(struct wiphy *wiphy,
  792. struct net_device *dev,
  793. struct mesh_config *conf)
  794. {
  795. struct ieee80211_sub_if_data *sdata;
  796. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  797. memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
  798. return 0;
  799. }
  800. static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
  801. {
  802. return (mask >> (parm-1)) & 0x1;
  803. }
  804. static int ieee80211_set_mesh_params(struct wiphy *wiphy,
  805. struct net_device *dev,
  806. const struct mesh_config *nconf, u32 mask)
  807. {
  808. struct mesh_config *conf;
  809. struct ieee80211_sub_if_data *sdata;
  810. struct ieee80211_if_mesh *ifmsh;
  811. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  812. ifmsh = &sdata->u.mesh;
  813. /* Set the config options which we are interested in setting */
  814. conf = &(sdata->u.mesh.mshcfg);
  815. if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
  816. conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
  817. if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
  818. conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
  819. if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
  820. conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
  821. if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
  822. conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
  823. if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
  824. conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
  825. if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
  826. conf->dot11MeshTTL = nconf->dot11MeshTTL;
  827. if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
  828. conf->auto_open_plinks = nconf->auto_open_plinks;
  829. if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
  830. conf->dot11MeshHWMPmaxPREQretries =
  831. nconf->dot11MeshHWMPmaxPREQretries;
  832. if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
  833. conf->path_refresh_time = nconf->path_refresh_time;
  834. if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
  835. conf->min_discovery_timeout = nconf->min_discovery_timeout;
  836. if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
  837. conf->dot11MeshHWMPactivePathTimeout =
  838. nconf->dot11MeshHWMPactivePathTimeout;
  839. if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
  840. conf->dot11MeshHWMPpreqMinInterval =
  841. nconf->dot11MeshHWMPpreqMinInterval;
  842. if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
  843. mask))
  844. conf->dot11MeshHWMPnetDiameterTraversalTime =
  845. nconf->dot11MeshHWMPnetDiameterTraversalTime;
  846. if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
  847. conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
  848. ieee80211_mesh_root_setup(ifmsh);
  849. }
  850. return 0;
  851. }
  852. #endif
  853. static int ieee80211_change_bss(struct wiphy *wiphy,
  854. struct net_device *dev,
  855. struct bss_parameters *params)
  856. {
  857. struct ieee80211_sub_if_data *sdata;
  858. u32 changed = 0;
  859. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  860. if (params->use_cts_prot >= 0) {
  861. sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
  862. changed |= BSS_CHANGED_ERP_CTS_PROT;
  863. }
  864. if (params->use_short_preamble >= 0) {
  865. sdata->vif.bss_conf.use_short_preamble =
  866. params->use_short_preamble;
  867. changed |= BSS_CHANGED_ERP_PREAMBLE;
  868. }
  869. if (!sdata->vif.bss_conf.use_short_slot &&
  870. sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
  871. sdata->vif.bss_conf.use_short_slot = true;
  872. changed |= BSS_CHANGED_ERP_SLOT;
  873. }
  874. if (params->use_short_slot_time >= 0) {
  875. sdata->vif.bss_conf.use_short_slot =
  876. params->use_short_slot_time;
  877. changed |= BSS_CHANGED_ERP_SLOT;
  878. }
  879. if (params->basic_rates) {
  880. int i, j;
  881. u32 rates = 0;
  882. struct ieee80211_local *local = wiphy_priv(wiphy);
  883. struct ieee80211_supported_band *sband =
  884. wiphy->bands[local->oper_channel->band];
  885. for (i = 0; i < params->basic_rates_len; i++) {
  886. int rate = (params->basic_rates[i] & 0x7f) * 5;
  887. for (j = 0; j < sband->n_bitrates; j++) {
  888. if (sband->bitrates[j].bitrate == rate)
  889. rates |= BIT(j);
  890. }
  891. }
  892. sdata->vif.bss_conf.basic_rates = rates;
  893. changed |= BSS_CHANGED_BASIC_RATES;
  894. }
  895. ieee80211_bss_info_change_notify(sdata, changed);
  896. return 0;
  897. }
  898. static int ieee80211_set_txq_params(struct wiphy *wiphy,
  899. struct ieee80211_txq_params *params)
  900. {
  901. struct ieee80211_local *local = wiphy_priv(wiphy);
  902. struct ieee80211_tx_queue_params p;
  903. if (!local->ops->conf_tx)
  904. return -EOPNOTSUPP;
  905. memset(&p, 0, sizeof(p));
  906. p.aifs = params->aifs;
  907. p.cw_max = params->cwmax;
  908. p.cw_min = params->cwmin;
  909. p.txop = params->txop;
  910. /*
  911. * Setting tx queue params disables u-apsd because it's only
  912. * called in master mode.
  913. */
  914. p.uapsd = false;
  915. if (drv_conf_tx(local, params->queue, &p)) {
  916. printk(KERN_DEBUG "%s: failed to set TX queue "
  917. "parameters for queue %d\n",
  918. wiphy_name(local->hw.wiphy), params->queue);
  919. return -EINVAL;
  920. }
  921. return 0;
  922. }
  923. static int ieee80211_set_channel(struct wiphy *wiphy,
  924. struct ieee80211_channel *chan,
  925. enum nl80211_channel_type channel_type)
  926. {
  927. struct ieee80211_local *local = wiphy_priv(wiphy);
  928. local->oper_channel = chan;
  929. local->oper_channel_type = channel_type;
  930. return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
  931. }
  932. #ifdef CONFIG_PM
  933. static int ieee80211_suspend(struct wiphy *wiphy)
  934. {
  935. return __ieee80211_suspend(wiphy_priv(wiphy));
  936. }
  937. static int ieee80211_resume(struct wiphy *wiphy)
  938. {
  939. return __ieee80211_resume(wiphy_priv(wiphy));
  940. }
  941. #else
  942. #define ieee80211_suspend NULL
  943. #define ieee80211_resume NULL
  944. #endif
  945. static int ieee80211_scan(struct wiphy *wiphy,
  946. struct net_device *dev,
  947. struct cfg80211_scan_request *req)
  948. {
  949. struct ieee80211_sub_if_data *sdata;
  950. sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  951. if (sdata->vif.type != NL80211_IFTYPE_STATION &&
  952. sdata->vif.type != NL80211_IFTYPE_ADHOC &&
  953. sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
  954. (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
  955. return -EOPNOTSUPP;
  956. return ieee80211_request_scan(sdata, req);
  957. }
  958. static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
  959. struct cfg80211_auth_request *req)
  960. {
  961. return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
  962. }
  963. static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
  964. struct cfg80211_assoc_request *req)
  965. {
  966. return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
  967. }
  968. static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
  969. struct cfg80211_deauth_request *req,
  970. void *cookie)
  971. {
  972. return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
  973. req, cookie);
  974. }
  975. static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
  976. struct cfg80211_disassoc_request *req,
  977. void *cookie)
  978. {
  979. return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
  980. req, cookie);
  981. }
  982. static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
  983. struct cfg80211_ibss_params *params)
  984. {
  985. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  986. return ieee80211_ibss_join(sdata, params);
  987. }
  988. static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
  989. {
  990. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  991. return ieee80211_ibss_leave(sdata);
  992. }
  993. static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
  994. {
  995. struct ieee80211_local *local = wiphy_priv(wiphy);
  996. int err;
  997. if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
  998. err = drv_set_coverage_class(local, wiphy->coverage_class);
  999. if (err)
  1000. return err;
  1001. }
  1002. if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
  1003. err = drv_set_rts_threshold(local, wiphy->rts_threshold);
  1004. if (err)
  1005. return err;
  1006. }
  1007. if (changed & WIPHY_PARAM_RETRY_SHORT)
  1008. local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
  1009. if (changed & WIPHY_PARAM_RETRY_LONG)
  1010. local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
  1011. if (changed &
  1012. (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
  1013. ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
  1014. return 0;
  1015. }
  1016. static int ieee80211_set_tx_power(struct wiphy *wiphy,
  1017. enum tx_power_setting type, int dbm)
  1018. {
  1019. struct ieee80211_local *local = wiphy_priv(wiphy);
  1020. struct ieee80211_channel *chan = local->hw.conf.channel;
  1021. u32 changes = 0;
  1022. switch (type) {
  1023. case TX_POWER_AUTOMATIC:
  1024. local->user_power_level = -1;
  1025. break;
  1026. case TX_POWER_LIMITED:
  1027. if (dbm < 0)
  1028. return -EINVAL;
  1029. local->user_power_level = dbm;
  1030. break;
  1031. case TX_POWER_FIXED:
  1032. if (dbm < 0)
  1033. return -EINVAL;
  1034. /* TODO: move to cfg80211 when it knows the channel */
  1035. if (dbm > chan->max_power)
  1036. return -EINVAL;
  1037. local->user_power_level = dbm;
  1038. break;
  1039. }
  1040. ieee80211_hw_config(local, changes);
  1041. return 0;
  1042. }
  1043. static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
  1044. {
  1045. struct ieee80211_local *local = wiphy_priv(wiphy);
  1046. *dbm = local->hw.conf.power_level;
  1047. return 0;
  1048. }
  1049. static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
  1050. u8 *addr)
  1051. {
  1052. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  1053. memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
  1054. return 0;
  1055. }
  1056. static void ieee80211_rfkill_poll(struct wiphy *wiphy)
  1057. {
  1058. struct ieee80211_local *local = wiphy_priv(wiphy);
  1059. drv_rfkill_poll(local);
  1060. }
  1061. #ifdef CONFIG_NL80211_TESTMODE
  1062. static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
  1063. {
  1064. struct ieee80211_local *local = wiphy_priv(wiphy);
  1065. if (!local->ops->testmode_cmd)
  1066. return -EOPNOTSUPP;
  1067. return local->ops->testmode_cmd(&local->hw, data, len);
  1068. }
  1069. #endif
  1070. int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
  1071. enum ieee80211_smps_mode smps_mode)
  1072. {
  1073. const u8 *ap;
  1074. enum ieee80211_smps_mode old_req;
  1075. int err;
  1076. old_req = sdata->u.mgd.req_smps;
  1077. sdata->u.mgd.req_smps = smps_mode;
  1078. if (old_req == smps_mode &&
  1079. smps_mode != IEEE80211_SMPS_AUTOMATIC)
  1080. return 0;
  1081. /*
  1082. * If not associated, or current association is not an HT
  1083. * association, there's no need to send an action frame.
  1084. */
  1085. if (!sdata->u.mgd.associated ||
  1086. sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
  1087. mutex_lock(&sdata->local->iflist_mtx);
  1088. ieee80211_recalc_smps(sdata->local, sdata);
  1089. mutex_unlock(&sdata->local->iflist_mtx);
  1090. return 0;
  1091. }
  1092. ap = sdata->u.mgd.associated->bssid;
  1093. if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
  1094. if (sdata->u.mgd.powersave)
  1095. smps_mode = IEEE80211_SMPS_DYNAMIC;
  1096. else
  1097. smps_mode = IEEE80211_SMPS_OFF;
  1098. }
  1099. /* send SM PS frame to AP */
  1100. err = ieee80211_send_smps_action(sdata, smps_mode,
  1101. ap, ap);
  1102. if (err)
  1103. sdata->u.mgd.req_smps = old_req;
  1104. return err;
  1105. }
  1106. static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
  1107. bool enabled, int timeout)
  1108. {
  1109. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  1110. struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  1111. struct ieee80211_conf *conf = &local->hw.conf;
  1112. if (sdata->vif.type != NL80211_IFTYPE_STATION)
  1113. return -EOPNOTSUPP;
  1114. if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
  1115. return -EOPNOTSUPP;
  1116. if (enabled == sdata->u.mgd.powersave &&
  1117. timeout == conf->dynamic_ps_timeout)
  1118. return 0;
  1119. sdata->u.mgd.powersave = enabled;
  1120. conf->dynamic_ps_timeout = timeout;
  1121. /* no change, but if automatic follow powersave */
  1122. mutex_lock(&sdata->u.mgd.mtx);
  1123. __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
  1124. mutex_unlock(&sdata->u.mgd.mtx);
  1125. if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
  1126. ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
  1127. ieee80211_recalc_ps(local, -1);
  1128. return 0;
  1129. }
  1130. static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
  1131. struct net_device *dev,
  1132. const u8 *addr,
  1133. const struct cfg80211_bitrate_mask *mask)
  1134. {
  1135. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  1136. struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  1137. int i;
  1138. /*
  1139. * This _could_ be supported by providing a hook for
  1140. * drivers for this function, but at this point it
  1141. * doesn't seem worth bothering.
  1142. */
  1143. if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
  1144. return -EOPNOTSUPP;
  1145. for (i = 0; i < IEEE80211_NUM_BANDS; i++)
  1146. sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
  1147. return 0;
  1148. }
  1149. static int ieee80211_remain_on_channel(struct wiphy *wiphy,
  1150. struct net_device *dev,
  1151. struct ieee80211_channel *chan,
  1152. enum nl80211_channel_type channel_type,
  1153. unsigned int duration,
  1154. u64 *cookie)
  1155. {
  1156. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  1157. return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
  1158. duration, cookie);
  1159. }
  1160. static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
  1161. struct net_device *dev,
  1162. u64 cookie)
  1163. {
  1164. struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  1165. return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
  1166. }
  1167. static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
  1168. struct ieee80211_channel *chan,
  1169. enum nl80211_channel_type channel_type,
  1170. const u8 *buf, size_t len, u64 *cookie)
  1171. {
  1172. return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
  1173. channel_type, buf, len, cookie);
  1174. }
  1175. struct cfg80211_ops mac80211_config_ops = {
  1176. .add_virtual_intf = ieee80211_add_iface,
  1177. .del_virtual_intf = ieee80211_del_iface,
  1178. .change_virtual_intf = ieee80211_change_iface,
  1179. .add_key = ieee80211_add_key,
  1180. .del_key = ieee80211_del_key,
  1181. .get_key = ieee80211_get_key,
  1182. .set_default_key = ieee80211_config_default_key,
  1183. .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
  1184. .add_beacon = ieee80211_add_beacon,
  1185. .set_beacon = ieee80211_set_beacon,
  1186. .del_beacon = ieee80211_del_beacon,
  1187. .add_station = ieee80211_add_station,
  1188. .del_station = ieee80211_del_station,
  1189. .change_station = ieee80211_change_station,
  1190. .get_station = ieee80211_get_station,
  1191. .dump_station = ieee80211_dump_station,
  1192. #ifdef CONFIG_MAC80211_MESH
  1193. .add_mpath = ieee80211_add_mpath,
  1194. .del_mpath = ieee80211_del_mpath,
  1195. .change_mpath = ieee80211_change_mpath,
  1196. .get_mpath = ieee80211_get_mpath,
  1197. .dump_mpath = ieee80211_dump_mpath,
  1198. .set_mesh_params = ieee80211_set_mesh_params,
  1199. .get_mesh_params = ieee80211_get_mesh_params,
  1200. #endif
  1201. .change_bss = ieee80211_change_bss,
  1202. .set_txq_params = ieee80211_set_txq_params,
  1203. .set_channel = ieee80211_set_channel,
  1204. .suspend = ieee80211_suspend,
  1205. .resume = ieee80211_resume,
  1206. .scan = ieee80211_scan,
  1207. .auth = ieee80211_auth,
  1208. .assoc = ieee80211_assoc,
  1209. .deauth = ieee80211_deauth,
  1210. .disassoc = ieee80211_disassoc,
  1211. .join_ibss = ieee80211_join_ibss,
  1212. .leave_ibss = ieee80211_leave_ibss,
  1213. .set_wiphy_params = ieee80211_set_wiphy_params,
  1214. .set_tx_power = ieee80211_set_tx_power,
  1215. .get_tx_power = ieee80211_get_tx_power,
  1216. .set_wds_peer = ieee80211_set_wds_peer,
  1217. .rfkill_poll = ieee80211_rfkill_poll,
  1218. CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
  1219. .set_power_mgmt = ieee80211_set_power_mgmt,
  1220. .set_bitrate_mask = ieee80211_set_bitrate_mask,
  1221. .remain_on_channel = ieee80211_remain_on_channel,
  1222. .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
  1223. .action = ieee80211_action,
  1224. };