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ath6kl: Add new WMI commands and events for P2P
[linux-block.git] / drivers / net / wireless / ath / ath6kl / cfg80211.c
CommitLineData
bdcd8170
KV		 1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "core.h"
18#include "cfg80211.h"
19#include "debug.h"
abcb344b 20#include "hif-ops.h"
bdcd8170
KV		 21
22#define RATETAB_ENT(_rate, _rateid, _flags) { \
23 .bitrate = (_rate), \
24 .flags = (_flags), \
25 .hw_value = (_rateid), \
26}
27
28#define CHAN2G(_channel, _freq, _flags) { \
29 .band = IEEE80211_BAND_2GHZ, \
30 .hw_value = (_channel), \
31 .center_freq = (_freq), \
32 .flags = (_flags), \
33 .max_antenna_gain = 0, \
34 .max_power = 30, \
35}
36
37#define CHAN5G(_channel, _flags) { \
38 .band = IEEE80211_BAND_5GHZ, \
39 .hw_value = (_channel), \
40 .center_freq = 5000 + (5 * (_channel)), \
41 .flags = (_flags), \
42 .max_antenna_gain = 0, \
43 .max_power = 30, \
44}
45
46static struct ieee80211_rate ath6kl_rates[] = {
47 RATETAB_ENT(10, 0x1, 0),
48 RATETAB_ENT(20, 0x2, 0),
49 RATETAB_ENT(55, 0x4, 0),
50 RATETAB_ENT(110, 0x8, 0),
51 RATETAB_ENT(60, 0x10, 0),
52 RATETAB_ENT(90, 0x20, 0),
53 RATETAB_ENT(120, 0x40, 0),
54 RATETAB_ENT(180, 0x80, 0),
55 RATETAB_ENT(240, 0x100, 0),
56 RATETAB_ENT(360, 0x200, 0),
57 RATETAB_ENT(480, 0x400, 0),
58 RATETAB_ENT(540, 0x800, 0),
59};
60
61#define ath6kl_a_rates (ath6kl_rates + 4)
62#define ath6kl_a_rates_size 8
63#define ath6kl_g_rates (ath6kl_rates + 0)
64#define ath6kl_g_rates_size 12
65
66static struct ieee80211_channel ath6kl_2ghz_channels[] = {
67 CHAN2G(1, 2412, 0),
68 CHAN2G(2, 2417, 0),
69 CHAN2G(3, 2422, 0),
70 CHAN2G(4, 2427, 0),
71 CHAN2G(5, 2432, 0),
72 CHAN2G(6, 2437, 0),
73 CHAN2G(7, 2442, 0),
74 CHAN2G(8, 2447, 0),
75 CHAN2G(9, 2452, 0),
76 CHAN2G(10, 2457, 0),
77 CHAN2G(11, 2462, 0),
78 CHAN2G(12, 2467, 0),
79 CHAN2G(13, 2472, 0),
80 CHAN2G(14, 2484, 0),
81};
82
83static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
84 CHAN5G(34, 0), CHAN5G(36, 0),
85 CHAN5G(38, 0), CHAN5G(40, 0),
86 CHAN5G(42, 0), CHAN5G(44, 0),
87 CHAN5G(46, 0), CHAN5G(48, 0),
88 CHAN5G(52, 0), CHAN5G(56, 0),
89 CHAN5G(60, 0), CHAN5G(64, 0),
90 CHAN5G(100, 0), CHAN5G(104, 0),
91 CHAN5G(108, 0), CHAN5G(112, 0),
92 CHAN5G(116, 0), CHAN5G(120, 0),
93 CHAN5G(124, 0), CHAN5G(128, 0),
94 CHAN5G(132, 0), CHAN5G(136, 0),
95 CHAN5G(140, 0), CHAN5G(149, 0),
96 CHAN5G(153, 0), CHAN5G(157, 0),
97 CHAN5G(161, 0), CHAN5G(165, 0),
98 CHAN5G(184, 0), CHAN5G(188, 0),
99 CHAN5G(192, 0), CHAN5G(196, 0),
100 CHAN5G(200, 0), CHAN5G(204, 0),
101 CHAN5G(208, 0), CHAN5G(212, 0),
102 CHAN5G(216, 0),
103};
104
105static struct ieee80211_supported_band ath6kl_band_2ghz = {
106 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
107 .channels = ath6kl_2ghz_channels,
108 .n_bitrates = ath6kl_g_rates_size,
109 .bitrates = ath6kl_g_rates,
110};
111
112static struct ieee80211_supported_band ath6kl_band_5ghz = {
113 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
114 .channels = ath6kl_5ghz_a_channels,
115 .n_bitrates = ath6kl_a_rates_size,
116 .bitrates = ath6kl_a_rates,
117};
118
119static int ath6kl_set_wpa_version(struct ath6kl *ar,
120 enum nl80211_wpa_versions wpa_version)
121{
122 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
123
124 if (!wpa_version) {
125 ar->auth_mode = NONE_AUTH;
126 } else if (wpa_version & NL80211_WPA_VERSION_2) {
127 ar->auth_mode = WPA2_AUTH;
128 } else if (wpa_version & NL80211_WPA_VERSION_1) {
129 ar->auth_mode = WPA_AUTH;
130 } else {
131 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
132 return -ENOTSUPP;
133 }
134
135 return 0;
136}
137
138static int ath6kl_set_auth_type(struct ath6kl *ar,
139 enum nl80211_auth_type auth_type)
140{
141
142 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
143
144 switch (auth_type) {
145 case NL80211_AUTHTYPE_OPEN_SYSTEM:
146 ar->dot11_auth_mode = OPEN_AUTH;
147 break;
148 case NL80211_AUTHTYPE_SHARED_KEY:
149 ar->dot11_auth_mode = SHARED_AUTH;
150 break;
151 case NL80211_AUTHTYPE_NETWORK_EAP:
152 ar->dot11_auth_mode = LEAP_AUTH;
153 break;
154
155 case NL80211_AUTHTYPE_AUTOMATIC:
156 ar->dot11_auth_mode = OPEN_AUTH;
157 ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS;
158 break;
159
160 default:
161 ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type);
162 return -ENOTSUPP;
163 }
164
165 return 0;
166}
167
168static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast)
169{
170 u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto;
171 u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : &ar->grp_crpto_len;
172
173 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
174 __func__, cipher, ucast);
175
176 switch (cipher) {
177 case 0:
178 /* our own hack to use value 0 as no crypto used */
179 *ar_cipher = NONE_CRYPT;
180 *ar_cipher_len = 0;
181 break;
182 case WLAN_CIPHER_SUITE_WEP40:
183 *ar_cipher = WEP_CRYPT;
184 *ar_cipher_len = 5;
185 break;
186 case WLAN_CIPHER_SUITE_WEP104:
187 *ar_cipher = WEP_CRYPT;
188 *ar_cipher_len = 13;
189 break;
190 case WLAN_CIPHER_SUITE_TKIP:
191 *ar_cipher = TKIP_CRYPT;
192 *ar_cipher_len = 0;
193 break;
194 case WLAN_CIPHER_SUITE_CCMP:
195 *ar_cipher = AES_CRYPT;
196 *ar_cipher_len = 0;
197 break;
198 default:
199 ath6kl_err("cipher 0x%x not supported\n", cipher);
200 return -ENOTSUPP;
201 }
202
203 return 0;
204}
205
206static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt)
207{
208 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
209
210 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
211 if (ar->auth_mode == WPA_AUTH)
212 ar->auth_mode = WPA_PSK_AUTH;
213 else if (ar->auth_mode == WPA2_AUTH)
214 ar->auth_mode = WPA2_PSK_AUTH;
215 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
216 ar->auth_mode = NONE_AUTH;
217 }
218}
219
220static bool ath6kl_cfg80211_ready(struct ath6kl *ar)
221{
222 if (!test_bit(WMI_READY, &ar->flag)) {
223 ath6kl_err("wmi is not ready\n");
224 return false;
225 }
226
575b5f34 227 if (!test_bit(WLAN_ENABLED, &ar->flag)) {
bdcd8170
KV		 228 ath6kl_err("wlan disabled\n");
229 return false;
230 }
231
232 return true;
233}
234
235static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
236 struct cfg80211_connect_params *sme)
237{
238 struct ath6kl *ar = ath6kl_priv(dev);
239 int status;
240
241 ar->sme_state = SME_CONNECTING;
242
243 if (!ath6kl_cfg80211_ready(ar))
244 return -EIO;
245
246 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
247 ath6kl_err("destroy in progress\n");
248 return -EBUSY;
249 }
250
251 if (test_bit(SKIP_SCAN, &ar->flag) &&
252 ((sme->channel && sme->channel->center_freq == 0) ||
253 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
254 ath6kl_err("SkipScan: channel or bssid invalid\n");
255 return -EINVAL;
256 }
257
258 if (down_interruptible(&ar->sem)) {
259 ath6kl_err("busy, couldn't get access\n");
260 return -ERESTARTSYS;
261 }
262
263 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
264 ath6kl_err("busy, destroy in progress\n");
265 up(&ar->sem);
266 return -EBUSY;
267 }
268
269 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
270 /*
271 * sleep until the command queue drains
272 */
273 wait_event_interruptible_timeout(ar->event_wq,
274 ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0,
275 WMI_TIMEOUT);
276 if (signal_pending(current)) {
277 ath6kl_err("cmd queue drain timeout\n");
278 up(&ar->sem);
279 return -EINTR;
280 }
281 }
282
283 if (test_bit(CONNECTED, &ar->flag) &&
284 ar->ssid_len == sme->ssid_len &&
285 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
286 ar->reconnect_flag = true;
287 status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid,
288 ar->ch_hint);
289
290 up(&ar->sem);
291 if (status) {
292 ath6kl_err("wmi_reconnect_cmd failed\n");
293 return -EIO;
294 }
295 return 0;
296 } else if (ar->ssid_len == sme->ssid_len &&
297 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
298 ath6kl_disconnect(ar);
299 }
300
301 memset(ar->ssid, 0, sizeof(ar->ssid));
302 ar->ssid_len = sme->ssid_len;
303 memcpy(ar->ssid, sme->ssid, sme->ssid_len);
304
305 if (sme->channel)
306 ar->ch_hint = sme->channel->center_freq;
307
308 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
309 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
310 memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid));
311
312 ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions);
313
314 status = ath6kl_set_auth_type(ar, sme->auth_type);
315 if (status) {
316 up(&ar->sem);
317 return status;
318 }
319
320 if (sme->crypto.n_ciphers_pairwise)
321 ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true);
322 else
323 ath6kl_set_cipher(ar, 0, true);
324
325 ath6kl_set_cipher(ar, sme->crypto.cipher_group, false);
326
327 if (sme->crypto.n_akm_suites)
328 ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]);
329
330 if ((sme->key_len) &&
331 (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) {
332 struct ath6kl_key *key = NULL;
333
334 if (sme->key_idx < WMI_MIN_KEY_INDEX ||
335 sme->key_idx > WMI_MAX_KEY_INDEX) {
336 ath6kl_err("key index %d out of bounds\n",
337 sme->key_idx);
338 up(&ar->sem);
339 return -ENOENT;
340 }
341
342 key = &ar->keys[sme->key_idx];
343 key->key_len = sme->key_len;
344 memcpy(key->key, sme->key, key->key_len);
345 key->cipher = ar->prwise_crypto;
346 ar->def_txkey_index = sme->key_idx;
347
348 ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx,
349 ar->prwise_crypto,
350 GROUP_USAGE | TX_USAGE,
351 key->key_len,
352 NULL,
353 key->key, KEY_OP_INIT_VAL, NULL,
354 NO_SYNC_WMIFLAG);
355 }
356
357 if (!ar->usr_bss_filter) {
358 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) {
359 ath6kl_err("couldn't set bss filtering\n");
360 up(&ar->sem);
361 return -EIO;
362 }
363 }
364
365 ar->nw_type = ar->next_mode;
366
367 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
368 "%s: connect called with authmode %d dot11 auth %d"
369 " PW crypto %d PW crypto len %d GRP crypto %d"
370 " GRP crypto len %d channel hint %u\n",
371 __func__,
372 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
373 ar->prwise_crypto_len, ar->grp_crypto,
374 ar->grp_crpto_len, ar->ch_hint);
375
376 ar->reconnect_flag = 0;
377 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,
378 ar->dot11_auth_mode, ar->auth_mode,
379 ar->prwise_crypto,
380 ar->prwise_crypto_len,
381 ar->grp_crypto, ar->grp_crpto_len,
382 ar->ssid_len, ar->ssid,
383 ar->req_bssid, ar->ch_hint,
384 ar->connect_ctrl_flags);
385
386 up(&ar->sem);
387
388 if (status == -EINVAL) {
389 memset(ar->ssid, 0, sizeof(ar->ssid));
390 ar->ssid_len = 0;
391 ath6kl_err("invalid request\n");
392 return -ENOENT;
393 } else if (status) {
394 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
395 return -EIO;
396 }
397
398 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
399 ((ar->auth_mode == WPA_PSK_AUTH)
400 || (ar->auth_mode == WPA2_PSK_AUTH))) {
401 mod_timer(&ar->disconnect_timer,
402 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
403 }
404
405 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
406 set_bit(CONNECT_PEND, &ar->flag);
407
408 return 0;
409}
410
411void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel,
412 u8 *bssid, u16 listen_intvl,
413 u16 beacon_intvl,
414 enum network_type nw_type,
415 u8 beacon_ie_len, u8 assoc_req_len,
416 u8 assoc_resp_len, u8 *assoc_info)
417{
418 u16 size = 0;
419 u16 capability = 0;
420 struct cfg80211_bss *bss = NULL;
421 struct ieee80211_mgmt *mgmt = NULL;
422 struct ieee80211_channel *ibss_ch = NULL;
423 s32 signal = 50 * 100;
424 u8 ie_buf_len = 0;
425 unsigned char ie_buf[256];
426 unsigned char *ptr_ie_buf = ie_buf;
427 unsigned char *ieeemgmtbuf = NULL;
428 u8 source_mac[ETH_ALEN];
bdcd8170
KV		 429
430 /* capinfo + listen interval */
431 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
432
433 /* capinfo + status code + associd */
434 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
435
436 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
437 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
438 assoc_resp_ie_offset;
439
440 assoc_req_len -= assoc_req_ie_offset;
441 assoc_resp_len -= assoc_resp_ie_offset;
442
443 ar->auto_auth_stage = AUTH_IDLE;
444
445 if (nw_type & ADHOC_NETWORK) {
446 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
447 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
448 "%s: ath6k not in ibss mode\n", __func__);
449 return;
450 }
451 }
452
453 if (nw_type & INFRA_NETWORK) {
454 if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
455 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
456 "%s: ath6k not in station mode\n", __func__);
457 return;
458 }
459 }
460
bdcd8170
KV		 461 /*
462 * Earlier we were updating the cfg about bss by making a beacon frame
463 * only if the entry for bss is not there. This can have some issue if
464 * ROAM event is generated and a heavy traffic is ongoing. The ROAM
465 * event is handled through a work queue and by the time it really gets
466 * handled, BSS would have been aged out. So it is better to update the
467 * cfg about BSS irrespective of its entry being present right now or
468 * not.
469 */
470
471 if (nw_type & ADHOC_NETWORK) {
472 /* construct 802.11 mgmt beacon */
473 if (ptr_ie_buf) {
474 *ptr_ie_buf++ = WLAN_EID_SSID;
475 *ptr_ie_buf++ = ar->ssid_len;
476 memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len);
477 ptr_ie_buf += ar->ssid_len;
478
479 *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS;
480 *ptr_ie_buf++ = 2; /* length */
481 *ptr_ie_buf++ = 0; /* ATIM window */
482 *ptr_ie_buf++ = 0; /* ATIM window */
483
484 /* TODO: update ibss params and include supported rates,
485 * DS param set, extened support rates, wmm. */
486
487 ie_buf_len = ptr_ie_buf - ie_buf;
488 }
489
490 capability |= WLAN_CAPABILITY_IBSS;
491
492 if (ar->prwise_crypto == WEP_CRYPT)
493 capability |= WLAN_CAPABILITY_PRIVACY;
494
495 memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN);
496 ptr_ie_buf = ie_buf;
497 } else {
498 capability = *(u16 *) (&assoc_info[beacon_ie_len]);
499 memcpy(source_mac, bssid, ETH_ALEN);
500 ptr_ie_buf = assoc_req_ie;
501 ie_buf_len = assoc_req_len;
502 }
503
504 size = offsetof(struct ieee80211_mgmt, u)
505 + sizeof(mgmt->u.beacon)
506 + ie_buf_len;
507
508 ieeemgmtbuf = kzalloc(size, GFP_ATOMIC);
509 if (!ieeemgmtbuf) {
510 ath6kl_err("ieee mgmt buf alloc error\n");
bdcd8170
KV		 511 return;
512 }
513
514 mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf;
515 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
516 IEEE80211_STYPE_BEACON);
517 memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */
518 memcpy(mgmt->sa, source_mac, ETH_ALEN);
519 memcpy(mgmt->bssid, bssid, ETH_ALEN);
520 mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl);
521 mgmt->u.beacon.capab_info = cpu_to_le16(capability);
522 memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len);
523
524 ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel);
525
526 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
527 "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n",
528 __func__, mgmt->bssid, ibss_ch->hw_value,
529 beacon_intvl, capability);
530
531 bss = cfg80211_inform_bss_frame(ar->wdev->wiphy,
532 ibss_ch, mgmt,
533 size, signal, GFP_KERNEL);
534 kfree(ieeemgmtbuf);
535 cfg80211_put_bss(bss);
536
537 if (nw_type & ADHOC_NETWORK) {
538 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
539 return;
540 }
541
9aa60357 542 if (ar->sme_state == SME_CONNECTING) {
bdcd8170 543 /* inform connect result to cfg80211 */
9aa60357 544 ar->sme_state = SME_CONNECTED;
bdcd8170
KV		 545 cfg80211_connect_result(ar->net_dev, bssid,
546 assoc_req_ie, assoc_req_len,
547 assoc_resp_ie, assoc_resp_len,
548 WLAN_STATUS_SUCCESS, GFP_KERNEL);
9aa60357 549 } else if (ar->sme_state == SME_CONNECTED) {
bdcd8170
KV		 550 /* inform roam event to cfg80211 */
551 cfg80211_roamed(ar->net_dev, ibss_ch, bssid,
552 assoc_req_ie, assoc_req_len,
553 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
554 }
555}
556
557static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
558 struct net_device *dev, u16 reason_code)
559{
560 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
561
562 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
563 reason_code);
564
565 if (!ath6kl_cfg80211_ready(ar))
566 return -EIO;
567
568 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
569 ath6kl_err("busy, destroy in progress\n");
570 return -EBUSY;
571 }
572
573 if (down_interruptible(&ar->sem)) {
574 ath6kl_err("busy, couldn't get access\n");
575 return -ERESTARTSYS;
576 }
577
578 ar->reconnect_flag = 0;
579 ath6kl_disconnect(ar);
580 memset(ar->ssid, 0, sizeof(ar->ssid));
581 ar->ssid_len = 0;
582
583 if (!test_bit(SKIP_SCAN, &ar->flag))
584 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
585
586 up(&ar->sem);
587
588 return 0;
589}
590
591void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason,
592 u8 *bssid, u8 assoc_resp_len,
593 u8 *assoc_info, u16 proto_reason)
594{
595 struct ath6kl_key *key = NULL;
596 u16 status;
597
598 if (ar->scan_req) {
599 cfg80211_scan_done(ar->scan_req, true);
600 ar->scan_req = NULL;
601 }
602
603 if (ar->nw_type & ADHOC_NETWORK) {
604 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
605 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
606 "%s: ath6k not in ibss mode\n", __func__);
607 return;
608 }
609 memset(bssid, 0, ETH_ALEN);
610 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
611 return;
612 }
613
614 if (ar->nw_type & INFRA_NETWORK) {
615 if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
616 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
617 "%s: ath6k not in station mode\n", __func__);
618 return;
619 }
620 }
621
622 if (!test_bit(CONNECT_PEND, &ar->flag)) {
623 if (reason != DISCONNECT_CMD)
624 ath6kl_wmi_disconnect_cmd(ar->wmi);
625
626 return;
627 }
628
629 if (reason == NO_NETWORK_AVAIL) {
630 /* connect cmd failed */
631 ath6kl_wmi_disconnect_cmd(ar->wmi);
632 return;
633 }
634
635 if (reason != DISCONNECT_CMD)
636 return;
637
638 if (!ar->auto_auth_stage) {
639 clear_bit(CONNECT_PEND, &ar->flag);
640
641 if (ar->sme_state == SME_CONNECTING) {
642 cfg80211_connect_result(ar->net_dev,
643 bssid, NULL, 0,
644 NULL, 0,
645 WLAN_STATUS_UNSPECIFIED_FAILURE,
646 GFP_KERNEL);
0e5cc8e6 647 } else if (ar->sme_state == SME_CONNECTED) {
bdcd8170
KV		 648 cfg80211_disconnected(ar->net_dev, reason,
649 NULL, 0, GFP_KERNEL);
650 }
651
652 ar->sme_state = SME_DISCONNECTED;
653 return;
654 }
655
656 if (ar->dot11_auth_mode != OPEN_AUTH)
657 return;
658
659 /*
660 * If the current auth algorithm is open, try shared and
661 * make autoAuthStage idle. We do not make it leap for now
662 * being.
663 */
664 key = &ar->keys[ar->def_txkey_index];
665 if (down_interruptible(&ar->sem)) {
666 ath6kl_err("busy, couldn't get access\n");
667 return;
668 }
669
670 ar->dot11_auth_mode = SHARED_AUTH;
671 ar->auto_auth_stage = AUTH_IDLE;
672
673 ath6kl_wmi_addkey_cmd(ar->wmi,
674 ar->def_txkey_index,
675 ar->prwise_crypto,
676 GROUP_USAGE | TX_USAGE,
677 key->key_len, NULL,
678 key->key,
679 KEY_OP_INIT_VAL, NULL,
680 NO_SYNC_WMIFLAG);
681
682 status = ath6kl_wmi_connect_cmd(ar->wmi,
683 ar->nw_type,
684 ar->dot11_auth_mode,
685 ar->auth_mode,
686 ar->prwise_crypto,
687 ar->prwise_crypto_len,
688 ar->grp_crypto,
689 ar->grp_crpto_len,
690 ar->ssid_len,
691 ar->ssid,
692 ar->req_bssid,
693 ar->ch_hint,
694 ar->connect_ctrl_flags);
695 up(&ar->sem);
696}
697
698static inline bool is_ch_11a(u16 ch)
699{
700 return (!((ch >= 2412) && (ch <= 2484)));
701}
702
cf104c2a 703/* struct ath6kl_node_table::nt_nodelock is locked when calling this */
91db35da 704void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni)
bdcd8170 705{
bdcd8170
KV		 706 struct ieee80211_mgmt *mgmt;
707 struct ieee80211_channel *channel;
708 struct ieee80211_supported_band *band;
709 struct ath6kl_common_ie *cie;
710 s32 signal;
711 int freq;
712
713 cie = &ni->ni_cie;
714
715 if (is_ch_11a(cie->ie_chan))
716 band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */
717 else if ((cie->ie_erp) || (cie->ie_xrates))
718 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */
719 else
720 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */
721
bdcd8170
KV		 722 freq = cie->ie_chan;
723 channel = ieee80211_get_channel(wiphy, freq);
724 signal = ni->ni_snr * 100;
725
726 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
727 "%s: bssid %pM ch %d freq %d size %d\n", __func__,
0ce77920
JM		 728 ni->ni_macaddr, channel->hw_value, freq, ni->ni_framelen);
729 /*
730 * Both Beacon and Probe Response frames have same payload structure,
731 * so it is fine to share the parser for both.
732 */
733 if (ni->ni_framelen < 8 + 2 + 2)
734 return;
735 mgmt = (struct ieee80211_mgmt *) (ni->ni_buf -
736 offsetof(struct ieee80211_mgmt, u));
737 cfg80211_inform_bss(wiphy, channel, ni->ni_macaddr,
738 le64_to_cpu(mgmt->u.beacon.timestamp),
739 le16_to_cpu(mgmt->u.beacon.capab_info),
740 le16_to_cpu(mgmt->u.beacon.beacon_int),
741 mgmt->u.beacon.variable,
742 ni->ni_buf + ni->ni_framelen -
743 mgmt->u.beacon.variable,
744 signal, GFP_ATOMIC);
bdcd8170
KV		 745}
746
747static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
748 struct cfg80211_scan_request *request)
749{
750 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
751 int ret = 0;
bdcd8170
KV		 752
753 if (!ath6kl_cfg80211_ready(ar))
754 return -EIO;
755
756 if (!ar->usr_bss_filter) {
757 if (ath6kl_wmi_bssfilter_cmd(ar->wmi,
758 (test_bit(CONNECTED, &ar->flag) ?
759 ALL_BUT_BSS_FILTER :
760 ALL_BSS_FILTER), 0) != 0) {
761 ath6kl_err("couldn't set bss filtering\n");
762 return -EIO;
763 }
764 }
765
766 if (request->n_ssids && request->ssids[0].ssid_len) {
767 u8 i;
768
769 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))
770 request->n_ssids = MAX_PROBED_SSID_INDEX - 1;
771
772 for (i = 0; i < request->n_ssids; i++)
773 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,
774 SPECIFIC_SSID_FLAG,
775 request->ssids[i].ssid_len,
776 request->ssids[i].ssid);
777 }
778
b2c76bbe 779 if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0,
bdcd8170
KV		 780 false, 0, 0, 0, NULL) != 0) {
781 ath6kl_err("wmi_startscan_cmd failed\n");
782 ret = -EIO;
783 }
784
785 ar->scan_req = request;
786
787 return ret;
788}
789
790void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status)
791{
6fd1eace 792 int i;
bdcd8170
KV		 793
794 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status);
795
6fd1eace
KV		 796 if (!ar->scan_req)
797 return;
798
799 if ((status == -ECANCELED) || (status == -EBUSY)) {
800 cfg80211_scan_done(ar->scan_req, true);
801 goto out;
802 }
803
804 /* Translate data to cfg80211 mgmt format */
8a8bc5a4 805 wlan_iterate_nodes(&ar->scan_table, ar->wdev->wiphy);
6fd1eace
KV		 806
807 cfg80211_scan_done(ar->scan_req, false);
808
809 if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) {
810 for (i = 0; i < ar->scan_req->n_ssids; i++) {
811 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,
812 DISABLE_SSID_FLAG,
813 0, NULL);
bdcd8170 814 }
bdcd8170 815 }
6fd1eace
KV		 816
817out:
818 ar->scan_req = NULL;
bdcd8170
KV		 819}
820
821static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
822 u8 key_index, bool pairwise,
823 const u8 *mac_addr,
824 struct key_params *params)
825{
826 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
827 struct ath6kl_key *key = NULL;
828 u8 key_usage;
829 u8 key_type;
830 int status = 0;
831
832 if (!ath6kl_cfg80211_ready(ar))
833 return -EIO;
834
835 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
836 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
837 "%s: key index %d out of bounds\n", __func__,
838 key_index);
839 return -ENOENT;
840 }
841
842 key = &ar->keys[key_index];
843 memset(key, 0, sizeof(struct ath6kl_key));
844
845 if (pairwise)
846 key_usage = PAIRWISE_USAGE;
847 else
848 key_usage = GROUP_USAGE;
849
850 if (params) {
851 if (params->key_len > WLAN_MAX_KEY_LEN ||
852 params->seq_len > sizeof(key->seq))
853 return -EINVAL;
854
855 key->key_len = params->key_len;
856 memcpy(key->key, params->key, key->key_len);
857 key->seq_len = params->seq_len;
858 memcpy(key->seq, params->seq, key->seq_len);
859 key->cipher = params->cipher;
860 }
861
862 switch (key->cipher) {
863 case WLAN_CIPHER_SUITE_WEP40:
864 case WLAN_CIPHER_SUITE_WEP104:
865 key_type = WEP_CRYPT;
866 break;
867
868 case WLAN_CIPHER_SUITE_TKIP:
869 key_type = TKIP_CRYPT;
870 break;
871
872 case WLAN_CIPHER_SUITE_CCMP:
873 key_type = AES_CRYPT;
874 break;
875
876 default:
877 return -ENOTSUPP;
878 }
879
880 if (((ar->auth_mode == WPA_PSK_AUTH)
881 || (ar->auth_mode == WPA2_PSK_AUTH))
882 && (key_usage & GROUP_USAGE))
883 del_timer(&ar->disconnect_timer);
884
885 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
886 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
887 __func__, key_index, key->key_len, key_type,
888 key_usage, key->seq_len);
889
890 ar->def_txkey_index = key_index;
9a5b1318
JM		 891
892 if (ar->nw_type == AP_NETWORK && !pairwise &&
893 (key_type == TKIP_CRYPT || key_type == AES_CRYPT) && params) {
894 ar->ap_mode_bkey.valid = true;
895 ar->ap_mode_bkey.key_index = key_index;
896 ar->ap_mode_bkey.key_type = key_type;
897 ar->ap_mode_bkey.key_len = key->key_len;
898 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
899 if (!test_bit(CONNECTED, &ar->flag)) {
900 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group "
901 "key configuration until AP mode has been "
902 "started\n");
903 /*
904 * The key will be set in ath6kl_connect_ap_mode() once
905 * the connected event is received from the target.
906 */
907 return 0;
908 }
909 }
910
bdcd8170
KV		 911 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
912 key_type, key_usage, key->key_len,
913 key->seq, key->key, KEY_OP_INIT_VAL,
914 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
915
916 if (status)
917 return -EIO;
918
919 return 0;
920}
921
922static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
923 u8 key_index, bool pairwise,
924 const u8 *mac_addr)
925{
926 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
927
928 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
929
930 if (!ath6kl_cfg80211_ready(ar))
931 return -EIO;
932
933 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
934 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
935 "%s: key index %d out of bounds\n", __func__,
936 key_index);
937 return -ENOENT;
938 }
939
940 if (!ar->keys[key_index].key_len) {
941 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
942 "%s: index %d is empty\n", __func__, key_index);
943 return 0;
944 }
945
946 ar->keys[key_index].key_len = 0;
947
948 return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index);
949}
950
951static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
952 u8 key_index, bool pairwise,
953 const u8 *mac_addr, void *cookie,
954 void (*callback) (void *cookie,
955 struct key_params *))
956{
957 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
958 struct ath6kl_key *key = NULL;
959 struct key_params params;
960
961 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
962
963 if (!ath6kl_cfg80211_ready(ar))
964 return -EIO;
965
966 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
967 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
968 "%s: key index %d out of bounds\n", __func__,
969 key_index);
970 return -ENOENT;
971 }
972
973 key = &ar->keys[key_index];
974 memset(&params, 0, sizeof(params));
975 params.cipher = key->cipher;
976 params.key_len = key->key_len;
977 params.seq_len = key->seq_len;
978 params.seq = key->seq;
979 params.key = key->key;
980
981 callback(cookie, &params);
982
983 return key->key_len ? 0 : -ENOENT;
984}
985
986static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
987 struct net_device *ndev,
988 u8 key_index, bool unicast,
989 bool multicast)
990{
991 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
992 struct ath6kl_key *key = NULL;
993 int status = 0;
994 u8 key_usage;
995
996 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
997
998 if (!ath6kl_cfg80211_ready(ar))
999 return -EIO;
1000
1001 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
1002 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1003 "%s: key index %d out of bounds\n",
1004 __func__, key_index);
1005 return -ENOENT;
1006 }
1007
1008 if (!ar->keys[key_index].key_len) {
1009 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1010 __func__, key_index);
1011 return -EINVAL;
1012 }
1013
1014 ar->def_txkey_index = key_index;
1015 key = &ar->keys[ar->def_txkey_index];
1016 key_usage = GROUP_USAGE;
1017 if (ar->prwise_crypto == WEP_CRYPT)
1018 key_usage |= TX_USAGE;
1019
9a5b1318
JM		 1020 if (ar->nw_type == AP_NETWORK && !test_bit(CONNECTED, &ar->flag))
1021 return 0; /* Delay until AP mode has been started */
1022
bdcd8170
KV		 1023 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
1024 ar->prwise_crypto, key_usage,
1025 key->key_len, key->seq, key->key,
1026 KEY_OP_INIT_VAL, NULL,
1027 SYNC_BOTH_WMIFLAG);
1028 if (status)
1029 return -EIO;
1030
1031 return 0;
1032}
1033
1034void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid,
1035 bool ismcast)
1036{
1037 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1038 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1039
1040 cfg80211_michael_mic_failure(ar->net_dev, ar->bssid,
1041 (ismcast ? NL80211_KEYTYPE_GROUP :
1042 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1043 GFP_KERNEL);
1044}
1045
1046static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1047{
1048 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1049 int ret;
1050
1051 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1052 changed);
1053
1054 if (!ath6kl_cfg80211_ready(ar))
1055 return -EIO;
1056
1057 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1058 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1059 if (ret != 0) {
1060 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1061 return -EIO;
1062 }
1063 }
1064
1065 return 0;
1066}
1067
1068/*
1069 * The type nl80211_tx_power_setting replaces the following
1070 * data type from 2.6.36 onwards
1071*/
1072static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1073 enum nl80211_tx_power_setting type,
1074 int dbm)
1075{
1076 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1077 u8 ath6kl_dbm;
1078
1079 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1080 type, dbm);
1081
1082 if (!ath6kl_cfg80211_ready(ar))
1083 return -EIO;
1084
1085 switch (type) {
1086 case NL80211_TX_POWER_AUTOMATIC:
1087 return 0;
1088 case NL80211_TX_POWER_LIMITED:
1089 ar->tx_pwr = ath6kl_dbm = dbm;
1090 break;
1091 default:
1092 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1093 __func__, type);
1094 return -EOPNOTSUPP;
1095 }
1096
1097 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm);
1098
1099 return 0;
1100}
1101
1102static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
1103{
1104 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1105
1106 if (!ath6kl_cfg80211_ready(ar))
1107 return -EIO;
1108
1109 if (test_bit(CONNECTED, &ar->flag)) {
1110 ar->tx_pwr = 0;
1111
1112 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) {
1113 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1114 return -EIO;
1115 }
1116
1117 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1118 5 * HZ);
1119
1120 if (signal_pending(current)) {
1121 ath6kl_err("target did not respond\n");
1122 return -EINTR;
1123 }
1124 }
1125
1126 *dbm = ar->tx_pwr;
1127 return 0;
1128}
1129
1130static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1131 struct net_device *dev,
1132 bool pmgmt, int timeout)
1133{
1134 struct ath6kl *ar = ath6kl_priv(dev);
1135 struct wmi_power_mode_cmd mode;
1136
1137 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1138 __func__, pmgmt, timeout);
1139
1140 if (!ath6kl_cfg80211_ready(ar))
1141 return -EIO;
1142
1143 if (pmgmt) {
1144 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1145 mode.pwr_mode = REC_POWER;
1146 } else {
1147 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1148 mode.pwr_mode = MAX_PERF_POWER;
1149 }
1150
1151 if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) {
1152 ath6kl_err("wmi_powermode_cmd failed\n");
1153 return -EIO;
1154 }
1155
1156 return 0;
1157}
1158
1159static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1160 struct net_device *ndev,
1161 enum nl80211_iftype type, u32 *flags,
1162 struct vif_params *params)
1163{
1164 struct ath6kl *ar = ath6kl_priv(ndev);
1165 struct wireless_dev *wdev = ar->wdev;
1166
1167 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1168
1169 if (!ath6kl_cfg80211_ready(ar))
1170 return -EIO;
1171
1172 switch (type) {
1173 case NL80211_IFTYPE_STATION:
1174 ar->next_mode = INFRA_NETWORK;
1175 break;
1176 case NL80211_IFTYPE_ADHOC:
1177 ar->next_mode = ADHOC_NETWORK;
1178 break;
1179 default:
1180 ath6kl_err("invalid interface type %u\n", type);
1181 return -EOPNOTSUPP;
1182 }
1183
1184 wdev->iftype = type;
1185
1186 return 0;
1187}
1188
1189static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1190 struct net_device *dev,
1191 struct cfg80211_ibss_params *ibss_param)
1192{
1193 struct ath6kl *ar = ath6kl_priv(dev);
1194 int status;
1195
1196 if (!ath6kl_cfg80211_ready(ar))
1197 return -EIO;
1198
1199 ar->ssid_len = ibss_param->ssid_len;
1200 memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len);
1201
1202 if (ibss_param->channel)
1203 ar->ch_hint = ibss_param->channel->center_freq;
1204
1205 if (ibss_param->channel_fixed) {
1206 /*
1207 * TODO: channel_fixed: The channel should be fixed, do not
1208 * search for IBSSs to join on other channels. Target
1209 * firmware does not support this feature, needs to be
1210 * updated.
1211 */
1212 return -EOPNOTSUPP;
1213 }
1214
1215 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
1216 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1217 memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid));
1218
1219 ath6kl_set_wpa_version(ar, 0);
1220
1221 status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM);
1222 if (status)
1223 return status;
1224
1225 if (ibss_param->privacy) {
1226 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true);
1227 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false);
1228 } else {
1229 ath6kl_set_cipher(ar, 0, true);
1230 ath6kl_set_cipher(ar, 0, false);
1231 }
1232
1233 ar->nw_type = ar->next_mode;
1234
1235 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1236 "%s: connect called with authmode %d dot11 auth %d"
1237 " PW crypto %d PW crypto len %d GRP crypto %d"
1238 " GRP crypto len %d channel hint %u\n",
1239 __func__,
1240 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
1241 ar->prwise_crypto_len, ar->grp_crypto,
1242 ar->grp_crpto_len, ar->ch_hint);
1243
1244 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,
1245 ar->dot11_auth_mode, ar->auth_mode,
1246 ar->prwise_crypto,
1247 ar->prwise_crypto_len,
1248 ar->grp_crypto, ar->grp_crpto_len,
1249 ar->ssid_len, ar->ssid,
1250 ar->req_bssid, ar->ch_hint,
1251 ar->connect_ctrl_flags);
1252 set_bit(CONNECT_PEND, &ar->flag);
1253
1254 return 0;
1255}
1256
1257static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1258 struct net_device *dev)
1259{
1260 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
1261
1262 if (!ath6kl_cfg80211_ready(ar))
1263 return -EIO;
1264
1265 ath6kl_disconnect(ar);
1266 memset(ar->ssid, 0, sizeof(ar->ssid));
1267 ar->ssid_len = 0;
1268
1269 return 0;
1270}
1271
1272static const u32 cipher_suites[] = {
1273 WLAN_CIPHER_SUITE_WEP40,
1274 WLAN_CIPHER_SUITE_WEP104,
1275 WLAN_CIPHER_SUITE_TKIP,
1276 WLAN_CIPHER_SUITE_CCMP,
1277};
1278
1279static bool is_rate_legacy(s32 rate)
1280{
1281 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1282 6000, 9000, 12000, 18000, 24000,
1283 36000, 48000, 54000
1284 };
1285 u8 i;
1286
1287 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1288 if (rate == legacy[i])
1289 return true;
1290
1291 return false;
1292}
1293
1294static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1295{
1296 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1297 52000, 58500, 65000, 72200
1298 };
1299 u8 i;
1300
1301 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1302 if (rate == ht20[i]) {
1303 if (i == ARRAY_SIZE(ht20) - 1)
1304 /* last rate uses sgi */
1305 *sgi = true;
1306 else
1307 *sgi = false;
1308
1309 *mcs = i;
1310 return true;
1311 }
1312 }
1313 return false;
1314}
1315
1316static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1317{
1318 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1319 81000, 108000, 121500, 135000,
1320 150000
1321 };
1322 u8 i;
1323
1324 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1325 if (rate == ht40[i]) {
1326 if (i == ARRAY_SIZE(ht40) - 1)
1327 /* last rate uses sgi */
1328 *sgi = true;
1329 else
1330 *sgi = false;
1331
1332 *mcs = i;
1333 return true;
1334 }
1335 }
1336
1337 return false;
1338}
1339
1340static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1341 u8 *mac, struct station_info *sinfo)
1342{
1343 struct ath6kl *ar = ath6kl_priv(dev);
1344 long left;
1345 bool sgi;
1346 s32 rate;
1347 int ret;
1348 u8 mcs;
1349
1350 if (memcmp(mac, ar->bssid, ETH_ALEN) != 0)
1351 return -ENOENT;
1352
1353 if (down_interruptible(&ar->sem))
1354 return -EBUSY;
1355
1356 set_bit(STATS_UPDATE_PEND, &ar->flag);
1357
1358 ret = ath6kl_wmi_get_stats_cmd(ar->wmi);
1359
1360 if (ret != 0) {
1361 up(&ar->sem);
1362 return -EIO;
1363 }
1364
1365 left = wait_event_interruptible_timeout(ar->event_wq,
1366 !test_bit(STATS_UPDATE_PEND,
1367 &ar->flag),
1368 WMI_TIMEOUT);
1369
1370 up(&ar->sem);
1371
1372 if (left == 0)
1373 return -ETIMEDOUT;
1374 else if (left < 0)
1375 return left;
1376
1377 if (ar->target_stats.rx_byte) {
1378 sinfo->rx_bytes = ar->target_stats.rx_byte;
1379 sinfo->filled |= STATION_INFO_RX_BYTES;
1380 sinfo->rx_packets = ar->target_stats.rx_pkt;
1381 sinfo->filled |= STATION_INFO_RX_PACKETS;
1382 }
1383
1384 if (ar->target_stats.tx_byte) {
1385 sinfo->tx_bytes = ar->target_stats.tx_byte;
1386 sinfo->filled |= STATION_INFO_TX_BYTES;
1387 sinfo->tx_packets = ar->target_stats.tx_pkt;
1388 sinfo->filled |= STATION_INFO_TX_PACKETS;
1389 }
1390
1391 sinfo->signal = ar->target_stats.cs_rssi;
1392 sinfo->filled |= STATION_INFO_SIGNAL;
1393
1394 rate = ar->target_stats.tx_ucast_rate;
1395
1396 if (is_rate_legacy(rate)) {
1397 sinfo->txrate.legacy = rate / 100;
1398 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1399 if (sgi) {
1400 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1401 sinfo->txrate.mcs = mcs - 1;
1402 } else {
1403 sinfo->txrate.mcs = mcs;
1404 }
1405
1406 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1407 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1408 if (sgi) {
1409 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1410 sinfo->txrate.mcs = mcs - 1;
1411 } else {
1412 sinfo->txrate.mcs = mcs;
1413 }
1414
1415 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1416 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1417 } else {
1418 ath6kl_warn("invalid rate: %d\n", rate);
1419 return 0;
1420 }
1421
1422 sinfo->filled |= STATION_INFO_TX_BITRATE;
1423
1424 return 0;
1425}
1426
1427static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1428 struct cfg80211_pmksa *pmksa)
1429{
1430 struct ath6kl *ar = ath6kl_priv(netdev);
1431 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,
1432 pmksa->pmkid, true);
1433}
1434
1435static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1436 struct cfg80211_pmksa *pmksa)
1437{
1438 struct ath6kl *ar = ath6kl_priv(netdev);
1439 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,
1440 pmksa->pmkid, false);
1441}
1442
1443static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1444{
1445 struct ath6kl *ar = ath6kl_priv(netdev);
1446 if (test_bit(CONNECTED, &ar->flag))
1447 return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false);
1448 return 0;
1449}
1450
abcb344b
KV		 1451#ifdef CONFIG_PM
1452static int ar6k_cfg80211_suspend(struct wiphy *wiphy,
1453 struct cfg80211_wowlan *wow)
1454{
1455 struct ath6kl *ar = wiphy_priv(wiphy);
1456
1457 return ath6kl_hif_suspend(ar);
1458}
1459#endif
1460
6a7c9bad
JM		 1461static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
1462 struct ieee80211_channel *chan,
1463 enum nl80211_channel_type channel_type)
1464{
1465 struct ath6kl *ar = ath6kl_priv(dev);
1466
1467 if (!ath6kl_cfg80211_ready(ar))
1468 return -EIO;
1469
1470 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
1471 __func__, chan->center_freq, chan->hw_value);
1472 ar->next_chan = chan->center_freq;
1473
1474 return 0;
1475}
1476
1477static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev,
1478 struct beacon_parameters *info, bool add)
1479{
1480 struct ath6kl *ar = ath6kl_priv(dev);
1481 struct ieee80211_mgmt *mgmt;
1482 u8 *ies;
1483 int ies_len;
1484 struct wmi_connect_cmd p;
1485 int res;
1486 int i;
1487
1488 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add);
1489
1490 if (!ath6kl_cfg80211_ready(ar))
1491 return -EIO;
1492
1493 if (ar->next_mode != AP_NETWORK)
1494 return -EOPNOTSUPP;
1495
1496 if (info->beacon_ies) {
1497 res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_BEACON,
1498 info->beacon_ies,
1499 info->beacon_ies_len);
1500 if (res)
1501 return res;
1502 }
1503 if (info->proberesp_ies) {
1504 res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_RESP,
1505 info->proberesp_ies,
1506 info->proberesp_ies_len);
1507 if (res)
1508 return res;
1509 }
1510 if (info->assocresp_ies) {
1511 res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_ASSOC_RESP,
1512 info->assocresp_ies,
1513 info->assocresp_ies_len);
1514 if (res)
1515 return res;
1516 }
1517
1518 if (!add)
1519 return 0;
1520
9a5b1318
JM		 1521 ar->ap_mode_bkey.valid = false;
1522
6a7c9bad
JM		 1523 /* TODO:
1524 * info->interval
1525 * info->dtim_period
1526 */
1527
1528 if (info->head == NULL)
1529 return -EINVAL;
1530 mgmt = (struct ieee80211_mgmt *) info->head;
1531 ies = mgmt->u.beacon.variable;
1532 if (ies > info->head + info->head_len)
1533 return -EINVAL;
1534 ies_len = info->head + info->head_len - ies;
1535
1536 if (info->ssid == NULL)
1537 return -EINVAL;
1538 memcpy(ar->ssid, info->ssid, info->ssid_len);
1539 ar->ssid_len = info->ssid_len;
1540 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
1541 return -EOPNOTSUPP; /* TODO */
1542
1543 ar->dot11_auth_mode = OPEN_AUTH;
1544
1545 memset(&p, 0, sizeof(p));
1546
1547 for (i = 0; i < info->crypto.n_akm_suites; i++) {
1548 switch (info->crypto.akm_suites[i]) {
1549 case WLAN_AKM_SUITE_8021X:
1550 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1551 p.auth_mode |= WPA_AUTH;
1552 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1553 p.auth_mode |= WPA2_AUTH;
1554 break;
1555 case WLAN_AKM_SUITE_PSK:
1556 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1557 p.auth_mode |= WPA_PSK_AUTH;
1558 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1559 p.auth_mode |= WPA2_PSK_AUTH;
1560 break;
1561 }
1562 }
1563 if (p.auth_mode == 0)
1564 p.auth_mode = NONE_AUTH;
1565 ar->auth_mode = p.auth_mode;
1566
1567 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
1568 switch (info->crypto.ciphers_pairwise[i]) {
1569 case WLAN_CIPHER_SUITE_WEP40:
1570 case WLAN_CIPHER_SUITE_WEP104:
1571 p.prwise_crypto_type |= WEP_CRYPT;
1572 break;
1573 case WLAN_CIPHER_SUITE_TKIP:
1574 p.prwise_crypto_type |= TKIP_CRYPT;
1575 break;
1576 case WLAN_CIPHER_SUITE_CCMP:
1577 p.prwise_crypto_type |= AES_CRYPT;
1578 break;
1579 }
1580 }
1581 if (p.prwise_crypto_type == 0)
1582 p.prwise_crypto_type = NONE_CRYPT;
1583
1584 switch (info->crypto.cipher_group) {
1585 case WLAN_CIPHER_SUITE_WEP40:
1586 case WLAN_CIPHER_SUITE_WEP104:
1587 p.grp_crypto_type = WEP_CRYPT;
1588 break;
1589 case WLAN_CIPHER_SUITE_TKIP:
1590 p.grp_crypto_type = TKIP_CRYPT;
1591 break;
1592 case WLAN_CIPHER_SUITE_CCMP:
1593 p.grp_crypto_type = AES_CRYPT;
1594 break;
1595 default:
1596 p.grp_crypto_type = NONE_CRYPT;
1597 break;
1598 }
1599
1600 p.nw_type = AP_NETWORK;
1601 ar->nw_type = ar->next_mode;
1602
1603 p.ssid_len = ar->ssid_len;
1604 memcpy(p.ssid, ar->ssid, ar->ssid_len);
1605 p.dot11_auth_mode = ar->dot11_auth_mode;
1606 p.ch = cpu_to_le16(ar->next_chan);
1607
9a5b1318
JM		 1608 res = ath6kl_wmi_ap_profile_commit(ar->wmi, &p);
1609 if (res < 0)
1610 return res;
1611
1612 return 0;
6a7c9bad
JM		 1613}
1614
1615static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev,
1616 struct beacon_parameters *info)
1617{
1618 return ath6kl_ap_beacon(wiphy, dev, info, true);
1619}
1620
1621static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev,
1622 struct beacon_parameters *info)
1623{
1624 return ath6kl_ap_beacon(wiphy, dev, info, false);
1625}
1626
1627static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev)
1628{
1629 struct ath6kl *ar = ath6kl_priv(dev);
1630
1631 if (ar->nw_type != AP_NETWORK)
1632 return -EOPNOTSUPP;
1633 if (!test_bit(CONNECTED, &ar->flag))
1634 return -ENOTCONN;
1635
1636 ath6kl_wmi_disconnect_cmd(ar->wmi);
1637 clear_bit(CONNECTED, &ar->flag);
1638
1639 return 0;
1640}
1641
23875136
JM		 1642static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
1643 u8 *mac, struct station_parameters *params)
1644{
1645 struct ath6kl *ar = ath6kl_priv(dev);
1646
1647 if (ar->nw_type != AP_NETWORK)
1648 return -EOPNOTSUPP;
1649
1650 /* Use this only for authorizing/unauthorizing a station */
1651 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
1652 return -EOPNOTSUPP;
1653
1654 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1655 return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_AUTHORIZE,
1656 mac, 0);
1657 return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_UNAUTHORIZE, mac,
1658 0);
1659}
1660
bdcd8170
KV		 1661static struct cfg80211_ops ath6kl_cfg80211_ops = {
1662 .change_virtual_intf = ath6kl_cfg80211_change_iface,
1663 .scan = ath6kl_cfg80211_scan,
1664 .connect = ath6kl_cfg80211_connect,
1665 .disconnect = ath6kl_cfg80211_disconnect,
1666 .add_key = ath6kl_cfg80211_add_key,
1667 .get_key = ath6kl_cfg80211_get_key,
1668 .del_key = ath6kl_cfg80211_del_key,
1669 .set_default_key = ath6kl_cfg80211_set_default_key,
1670 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
1671 .set_tx_power = ath6kl_cfg80211_set_txpower,
1672 .get_tx_power = ath6kl_cfg80211_get_txpower,
1673 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
1674 .join_ibss = ath6kl_cfg80211_join_ibss,
1675 .leave_ibss = ath6kl_cfg80211_leave_ibss,
1676 .get_station = ath6kl_get_station,
1677 .set_pmksa = ath6kl_set_pmksa,
1678 .del_pmksa = ath6kl_del_pmksa,
1679 .flush_pmksa = ath6kl_flush_pmksa,
abcb344b
KV		 1680#ifdef CONFIG_PM
1681 .suspend = ar6k_cfg80211_suspend,
1682#endif
6a7c9bad
JM		 1683 .set_channel = ath6kl_set_channel,
1684 .add_beacon = ath6kl_add_beacon,
1685 .set_beacon = ath6kl_set_beacon,
1686 .del_beacon = ath6kl_del_beacon,
23875136 1687 .change_station = ath6kl_change_station,
bdcd8170
KV		 1688};
1689
1690struct wireless_dev *ath6kl_cfg80211_init(struct device *dev)
1691{
1692 int ret = 0;
1693 struct wireless_dev *wdev;
1694
1695 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1696 if (!wdev) {
1697 ath6kl_err("couldn't allocate wireless device\n");
1698 return NULL;
1699 }
1700
1701 /* create a new wiphy for use with cfg80211 */
1702 wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
1703 if (!wdev->wiphy) {
1704 ath6kl_err("couldn't allocate wiphy device\n");
1705 kfree(wdev);
1706 return NULL;
1707 }
1708
1709 /* set device pointer for wiphy */
1710 set_wiphy_dev(wdev->wiphy, dev);
1711
1712 wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1713 BIT(NL80211_IFTYPE_ADHOC);
1714 /* max num of ssids that can be probed during scanning */
1715 wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;
1716 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
1717 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
1718 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1719
1720 wdev->wiphy->cipher_suites = cipher_suites;
1721 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1722
1723 ret = wiphy_register(wdev->wiphy);
1724 if (ret < 0) {
1725 ath6kl_err("couldn't register wiphy device\n");
1726 wiphy_free(wdev->wiphy);
1727 kfree(wdev);
1728 return NULL;
1729 }
1730
1731 return wdev;
1732}
1733
1734void ath6kl_cfg80211_deinit(struct ath6kl *ar)
1735{
1736 struct wireless_dev *wdev = ar->wdev;
1737
1738 if (ar->scan_req) {
1739 cfg80211_scan_done(ar->scan_req, true);
1740 ar->scan_req = NULL;
1741 }
1742
1743 if (!wdev)
1744 return;
1745
1746 wiphy_unregister(wdev->wiphy);
1747 wiphy_free(wdev->wiphy);
1748 kfree(wdev);
1749}
Linux 6.x block layer and io_uring tree(s)