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1 /*

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"

20 #include "hif-ops.h"

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

46 static 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

66 static 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

83 static 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

105 static 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

112 static 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

119 static 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

138 static 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

168 static 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 :

172 &ar->grp_crypto_len;

173

174 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",

175 __func__, cipher, ucast);

176

177 switch (cipher) {

178 case 0:

179 /* our own hack to use value 0 as no crypto used */

180 *ar_cipher = NONE_CRYPT;

181 *ar_cipher_len = 0;

182 break;

183 case WLAN_CIPHER_SUITE_WEP40:

184 *ar_cipher = WEP_CRYPT;

185 *ar_cipher_len = 5;

186 break;

187 case WLAN_CIPHER_SUITE_WEP104:

188 *ar_cipher = WEP_CRYPT;

189 *ar_cipher_len = 13;

190 break;

191 case WLAN_CIPHER_SUITE_TKIP:

192 *ar_cipher = TKIP_CRYPT;

193 *ar_cipher_len = 0;

194 break;

195 case WLAN_CIPHER_SUITE_CCMP:

196 *ar_cipher = AES_CRYPT;

197 *ar_cipher_len = 0;

198 break;

199 default:

200 ath6kl_err("cipher 0x%x not supported\n", cipher);

201 return -ENOTSUPP;

202 }

203

204 return 0;

205 }

206

207 static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt)

208 {

209 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);

210

211 if (key_mgmt == WLAN_AKM_SUITE_PSK) {

212 if (ar->auth_mode == WPA_AUTH)

213 ar->auth_mode = WPA_PSK_AUTH;

214 else if (ar->auth_mode == WPA2_AUTH)

215 ar->auth_mode = WPA2_PSK_AUTH;

216 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {

217 ar->auth_mode = NONE_AUTH;

218 }

219 }

220

221 static bool ath6kl_cfg80211_ready(struct ath6kl *ar)

222 {

223 if (!test_bit(WMI_READY, &ar->flag)) {

224 ath6kl_err("wmi is not ready\n");

225 return false;

226 }

227

228 if (!test_bit(WLAN_ENABLED, &ar->flag)) {

229 ath6kl_err("wlan disabled\n");

230 return false;

231 }

232

233 return true;

234 }

235

236 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,

237 struct cfg80211_connect_params *sme)

238 {

239 struct ath6kl *ar = ath6kl_priv(dev);

240 int status;

241

242 ar->sme_state = SME_CONNECTING;

243

244 if (!ath6kl_cfg80211_ready(ar))

245 return -EIO;

246

247 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {

248 ath6kl_err("destroy in progress\n");

249 return -EBUSY;

250 }

251

252 if (test_bit(SKIP_SCAN, &ar->flag) &&

253 ((sme->channel && sme->channel->center_freq == 0) ||

254 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {

255 ath6kl_err("SkipScan: channel or bssid invalid\n");

256 return -EINVAL;

257 }

258

259 if (down_interruptible(&ar->sem)) {

260 ath6kl_err("busy, couldn't get access\n");

261 return -ERESTARTSYS;

262 }

263

264 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {

265 ath6kl_err("busy, destroy in progress\n");

266 up(&ar->sem);

267 return -EBUSY;

268 }

269

270 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {

271 /*

272 * sleep until the command queue drains

273 */

274 wait_event_interruptible_timeout(ar->event_wq,

275 ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0,

276 WMI_TIMEOUT);

277 if (signal_pending(current)) {

278 ath6kl_err("cmd queue drain timeout\n");

279 up(&ar->sem);

280 return -EINTR;

281 }

282 }

283

284 if (test_bit(CONNECTED, &ar->flag) &&

285 ar->ssid_len == sme->ssid_len &&

286 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {

287 ar->reconnect_flag = true;

288 status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid,

289 ar->ch_hint);

290

291 up(&ar->sem);

292 if (status) {

293 ath6kl_err("wmi_reconnect_cmd failed\n");

294 return -EIO;

295 }

296 return 0;

297 } else if (ar->ssid_len == sme->ssid_len &&

298 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {

299 ath6kl_disconnect(ar);

300 }

301

302 memset(ar->ssid, 0, sizeof(ar->ssid));

303 ar->ssid_len = sme->ssid_len;

304 memcpy(ar->ssid, sme->ssid, sme->ssid_len);

305

306 if (sme->channel)

307 ar->ch_hint = sme->channel->center_freq;

308

309 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));

310 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))

311 memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid));

312

313 ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions);

314

315 status = ath6kl_set_auth_type(ar, sme->auth_type);

316 if (status) {

317 up(&ar->sem);

318 return status;

319 }

320

321 if (sme->crypto.n_ciphers_pairwise)

322 ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true);

323 else

324 ath6kl_set_cipher(ar, 0, true);

325

326 ath6kl_set_cipher(ar, sme->crypto.cipher_group, false);

327

328 if (sme->crypto.n_akm_suites)

329 ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]);

330

331 if ((sme->key_len) &&

332 (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) {

333 struct ath6kl_key *key = NULL;

334

335 if (sme->key_idx < WMI_MIN_KEY_INDEX ||

336 sme->key_idx > WMI_MAX_KEY_INDEX) {

337 ath6kl_err("key index %d out of bounds\n",

338 sme->key_idx);

339 up(&ar->sem);

340 return -ENOENT;

341 }

342

343 key = &ar->keys[sme->key_idx];

344 key->key_len = sme->key_len;

345 memcpy(key->key, sme->key, key->key_len);

346 key->cipher = ar->prwise_crypto;

347 ar->def_txkey_index = sme->key_idx;

348

349 ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx,

350 ar->prwise_crypto,

351 GROUP_USAGE | TX_USAGE,

352 key->key_len,

353 NULL,

354 key->key, KEY_OP_INIT_VAL, NULL,

355 NO_SYNC_WMIFLAG);

356 }

357

358 if (!ar->usr_bss_filter) {

359 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) {

360 ath6kl_err("couldn't set bss filtering\n");

361 up(&ar->sem);

362 return -EIO;

363 }

364 }

365

366 ar->nw_type = ar->next_mode;

367

368 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

369 "%s: connect called with authmode %d dot11 auth %d"

370 " PW crypto %d PW crypto len %d GRP crypto %d"

371 " GRP crypto len %d channel hint %u\n",

372 __func__,

373 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,

374 ar->prwise_crypto_len, ar->grp_crypto,

375 ar->grp_crypto_len, ar->ch_hint);

376

377 ar->reconnect_flag = 0;

378 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,

379 ar->dot11_auth_mode, ar->auth_mode,

380 ar->prwise_crypto,

381 ar->prwise_crypto_len,

382 ar->grp_crypto, ar->grp_crypto_len,

383 ar->ssid_len, ar->ssid,

384 ar->req_bssid, ar->ch_hint,

385 ar->connect_ctrl_flags);

386

387 up(&ar->sem);

388

389 if (status == -EINVAL) {

390 memset(ar->ssid, 0, sizeof(ar->ssid));

391 ar->ssid_len = 0;

392 ath6kl_err("invalid request\n");

393 return -ENOENT;

394 } else if (status) {

395 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");

396 return -EIO;

397 }

398

399 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&

400 ((ar->auth_mode == WPA_PSK_AUTH)

401 || (ar->auth_mode == WPA2_PSK_AUTH))) {

402 mod_timer(&ar->disconnect_timer,

403 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));

404 }

405

406 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;

407 set_bit(CONNECT_PEND, &ar->flag);

408

409 return 0;

410 }

411

412 void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel,

413 u8 *bssid, u16 listen_intvl,

414 u16 beacon_intvl,

415 enum network_type nw_type,

416 u8 beacon_ie_len, u8 assoc_req_len,

417 u8 assoc_resp_len, u8 *assoc_info)

418 {

419 u16 size = 0;

420 u16 capability = 0;

421 struct cfg80211_bss *bss = NULL;

422 struct ieee80211_mgmt *mgmt = NULL;

423 struct ieee80211_channel *ibss_ch = NULL;

424 s32 signal = 50 * 100;

425 u8 ie_buf_len = 0;

426 unsigned char ie_buf[256];

427 unsigned char *ptr_ie_buf = ie_buf;

428 unsigned char *ieeemgmtbuf = NULL;

429 u8 source_mac[ETH_ALEN];

430

431 /* capinfo + listen interval */

432 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);

433

434 /* capinfo + status code + associd */

435 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);

436

437 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;

438 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +

439 assoc_resp_ie_offset;

440

441 assoc_req_len -= assoc_req_ie_offset;

442 assoc_resp_len -= assoc_resp_ie_offset;

443

444 ar->auto_auth_stage = AUTH_IDLE;

445

446 if (nw_type & ADHOC_NETWORK) {

447 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {

448 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

449 "%s: ath6k not in ibss mode\n", __func__);

450 return;

451 }

452 }

453

454 if (nw_type & INFRA_NETWORK) {

455 if (ar->wdev->iftype != NL80211_IFTYPE_STATION &&

456 ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) {

457 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

458 "%s: ath6k not in station mode\n", __func__);

459 return;

460 }

461 }

462

463 /*

464 * Earlier we were updating the cfg about bss by making a beacon frame

465 * only if the entry for bss is not there. This can have some issue if

466 * ROAM event is generated and a heavy traffic is ongoing. The ROAM

467 * event is handled through a work queue and by the time it really gets

468 * handled, BSS would have been aged out. So it is better to update the

469 * cfg about BSS irrespective of its entry being present right now or

470 * not.

471 */

472

473 if (nw_type & ADHOC_NETWORK) {

474 /* construct 802.11 mgmt beacon */

475 if (ptr_ie_buf) {

476 *ptr_ie_buf++ = WLAN_EID_SSID;

477 *ptr_ie_buf++ = ar->ssid_len;

478 memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len);

479 ptr_ie_buf += ar->ssid_len;

480

481 *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS;

482 *ptr_ie_buf++ = 2; /* length */

483 *ptr_ie_buf++ = 0; /* ATIM window */

484 *ptr_ie_buf++ = 0; /* ATIM window */

485

486 /* TODO: update ibss params and include supported rates,

487 * DS param set, extened support rates, wmm. */

488

489 ie_buf_len = ptr_ie_buf - ie_buf;

490 }

491

492 capability |= WLAN_CAPABILITY_IBSS;

493

494 if (ar->prwise_crypto == WEP_CRYPT)

495 capability |= WLAN_CAPABILITY_PRIVACY;

496

497 memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN);

498 ptr_ie_buf = ie_buf;

499 } else {

500 capability = *(u16 *) (&assoc_info[beacon_ie_len]);

501 memcpy(source_mac, bssid, ETH_ALEN);

502 ptr_ie_buf = assoc_req_ie;

503 ie_buf_len = assoc_req_len;

504 }

505

506 size = offsetof(struct ieee80211_mgmt, u)

507 + sizeof(mgmt->u.beacon)

508 + ie_buf_len;

509

510 ieeemgmtbuf = kzalloc(size, GFP_ATOMIC);

511 if (!ieeemgmtbuf) {

512 ath6kl_err("ieee mgmt buf alloc error\n");

513 return;

514 }

515

516 mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf;

517 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |

518 IEEE80211_STYPE_BEACON);

519 memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */

520 memcpy(mgmt->sa, source_mac, ETH_ALEN);

521 memcpy(mgmt->bssid, bssid, ETH_ALEN);

522 mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl);

523 mgmt->u.beacon.capab_info = cpu_to_le16(capability);

524 memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len);

525

526 ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel);

527

528 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

529 "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n",

530 __func__, mgmt->bssid, ibss_ch->hw_value,

531 beacon_intvl, capability);

532

533 bss = cfg80211_inform_bss_frame(ar->wdev->wiphy,

534 ibss_ch, mgmt,

535 size, signal, GFP_KERNEL);

536 kfree(ieeemgmtbuf);

537 cfg80211_put_bss(bss);

538

539 if (nw_type & ADHOC_NETWORK) {

540 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);

541 return;

542 }

543

544 if (ar->sme_state == SME_CONNECTING) {

545 /* inform connect result to cfg80211 */

546 ar->sme_state = SME_CONNECTED;

547 cfg80211_connect_result(ar->net_dev, bssid,

548 assoc_req_ie, assoc_req_len,

549 assoc_resp_ie, assoc_resp_len,

550 WLAN_STATUS_SUCCESS, GFP_KERNEL);

551 } else if (ar->sme_state == SME_CONNECTED) {

552 /* inform roam event to cfg80211 */

553 cfg80211_roamed(ar->net_dev, ibss_ch, bssid,

554 assoc_req_ie, assoc_req_len,

555 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);

556 }

557 }

558

559 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,

560 struct net_device *dev, u16 reason_code)

561 {

562 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);

563

564 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,

565 reason_code);

566

567 if (!ath6kl_cfg80211_ready(ar))

568 return -EIO;

569

570 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {

571 ath6kl_err("busy, destroy in progress\n");

572 return -EBUSY;

573 }

574

575 if (down_interruptible(&ar->sem)) {

576 ath6kl_err("busy, couldn't get access\n");

577 return -ERESTARTSYS;

578 }

579

580 ar->reconnect_flag = 0;

581 ath6kl_disconnect(ar);

582 memset(ar->ssid, 0, sizeof(ar->ssid));

583 ar->ssid_len = 0;

584

585 if (!test_bit(SKIP_SCAN, &ar->flag))

586 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));

587

588 up(&ar->sem);

589

590 return 0;

591 }

592

593 void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason,

594 u8 *bssid, u8 assoc_resp_len,

595 u8 *assoc_info, u16 proto_reason)

596 {

597 struct ath6kl_key *key = NULL;

598 u16 status;

599

600 if (ar->scan_req) {

601 cfg80211_scan_done(ar->scan_req, true);

602 ar->scan_req = NULL;

603 }

604

605 if (ar->nw_type & ADHOC_NETWORK) {

606 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {

607 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

608 "%s: ath6k not in ibss mode\n", __func__);

609 return;

610 }

611 memset(bssid, 0, ETH_ALEN);

612 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);

613 return;

614 }

615

616 if (ar->nw_type & INFRA_NETWORK) {

617 if (ar->wdev->iftype != NL80211_IFTYPE_STATION &&

618 ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) {

619 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

620 "%s: ath6k not in station mode\n", __func__);

621 return;

622 }

623 }

624

625 if (!test_bit(CONNECT_PEND, &ar->flag)) {

626 if (reason != DISCONNECT_CMD)

627 ath6kl_wmi_disconnect_cmd(ar->wmi);

628

629 return;

630 }

631

632 if (reason == NO_NETWORK_AVAIL) {

633 /* connect cmd failed */

634 ath6kl_wmi_disconnect_cmd(ar->wmi);

635 return;

636 }

637

638 if (reason != DISCONNECT_CMD)

639 return;

640

641 if (!ar->auto_auth_stage) {

642 clear_bit(CONNECT_PEND, &ar->flag);

643

644 if (ar->sme_state == SME_CONNECTING) {

645 cfg80211_connect_result(ar->net_dev,

646 bssid, NULL, 0,

647 NULL, 0,

648 WLAN_STATUS_UNSPECIFIED_FAILURE,

649 GFP_KERNEL);

650 } else if (ar->sme_state == SME_CONNECTED) {

651 cfg80211_disconnected(ar->net_dev, reason,

652 NULL, 0, GFP_KERNEL);

653 }

654

655 ar->sme_state = SME_DISCONNECTED;

656 return;

657 }

658

659 if (ar->dot11_auth_mode != OPEN_AUTH)

660 return;

661

662 /*

663 * If the current auth algorithm is open, try shared and

664 * make autoAuthStage idle. We do not make it leap for now

665 * being.

666 */

667 key = &ar->keys[ar->def_txkey_index];

668 if (down_interruptible(&ar->sem)) {

669 ath6kl_err("busy, couldn't get access\n");

670 return;

671 }

672

673 ar->dot11_auth_mode = SHARED_AUTH;

674 ar->auto_auth_stage = AUTH_IDLE;

675

676 ath6kl_wmi_addkey_cmd(ar->wmi,

677 ar->def_txkey_index,

678 ar->prwise_crypto,

679 GROUP_USAGE | TX_USAGE,

680 key->key_len, NULL,

681 key->key,

682 KEY_OP_INIT_VAL, NULL,

683 NO_SYNC_WMIFLAG);

684

685 status = ath6kl_wmi_connect_cmd(ar->wmi,

686 ar->nw_type,

687 ar->dot11_auth_mode,

688 ar->auth_mode,

689 ar->prwise_crypto,

690 ar->prwise_crypto_len,

691 ar->grp_crypto,

692 ar->grp_crypto_len,

693 ar->ssid_len,

694 ar->ssid,

695 ar->req_bssid,

696 ar->ch_hint,

697 ar->connect_ctrl_flags);

698 up(&ar->sem);

699 }

700

701 static inline bool is_ch_11a(u16 ch)

702 {

703 return (!((ch >= 2412) && (ch <= 2484)));

704 }

705

706 /* struct ath6kl_node_table::nt_nodelock is locked when calling this */

707 void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni)

708 {

709 struct ieee80211_mgmt *mgmt;

710 struct ieee80211_channel *channel;

711 struct ieee80211_supported_band *band;

712 struct ath6kl_common_ie *cie;

713 s32 signal;

714 int freq;

715

716 cie = &ni->ni_cie;

717

718 if (is_ch_11a(cie->ie_chan))

719 band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */

720 else if ((cie->ie_erp) || (cie->ie_xrates))

721 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */

722 else

723 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */

724

725 freq = cie->ie_chan;

726 channel = ieee80211_get_channel(wiphy, freq);

727 signal = ni->ni_snr * 100;

728

729 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

730 "%s: bssid %pM ch %d freq %d size %d\n", __func__,

731 ni->ni_macaddr, channel->hw_value, freq, ni->ni_framelen);

732 /*

733 * Both Beacon and Probe Response frames have same payload structure,

734 * so it is fine to share the parser for both.

735 */

736 if (ni->ni_framelen < 8 + 2 + 2)

737 return;

738 mgmt = (struct ieee80211_mgmt *) (ni->ni_buf -

739 offsetof(struct ieee80211_mgmt, u));

740 cfg80211_inform_bss(wiphy, channel, ni->ni_macaddr,

741 le64_to_cpu(mgmt->u.beacon.timestamp),

742 le16_to_cpu(mgmt->u.beacon.capab_info),

743 le16_to_cpu(mgmt->u.beacon.beacon_int),

744 mgmt->u.beacon.variable,

745 ni->ni_buf + ni->ni_framelen -

746 mgmt->u.beacon.variable,

747 signal, GFP_ATOMIC);

748 }

749

750 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,

751 struct cfg80211_scan_request *request)

752 {

753 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);

754 s8 n_channels = 0;

755 u16 *channels = NULL;

756 int ret = 0;

757

758 if (!ath6kl_cfg80211_ready(ar))

759 return -EIO;

760

761 if (!ar->usr_bss_filter) {

762 if (ath6kl_wmi_bssfilter_cmd(ar->wmi,

763 (test_bit(CONNECTED, &ar->flag) ?

764 ALL_BUT_BSS_FILTER :

765 ALL_BSS_FILTER), 0) != 0) {

766 ath6kl_err("couldn't set bss filtering\n");

767 return -EIO;

768 }

769 }

770

771 if (request->n_ssids && request->ssids[0].ssid_len) {

772 u8 i;

773

774 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))

775 request->n_ssids = MAX_PROBED_SSID_INDEX - 1;

776

777 for (i = 0; i < request->n_ssids; i++)

778 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,

779 SPECIFIC_SSID_FLAG,

780 request->ssids[i].ssid_len,

781 request->ssids[i].ssid);

782 }

783

784 if (request->ie) {

785 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_REQ,

786 request->ie, request->ie_len);

787 if (ret) {

788 ath6kl_err("failed to set Probe Request appie for "

789 "scan");

790 return ret;

791 }

792 }

793

794 if (request->n_channels > 0) {

795 u8 i;

796

797 n_channels = min(127U, request->n_channels);

798

799 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);

800 if (channels == NULL) {

801 ath6kl_warn("failed to set scan channels, "

802 "scan all channels");

803 n_channels = 0;

804 }

805

806 for (i = 0; i < n_channels; i++)

807 channels[i] = request->channels[i]->center_freq;

808 }

809

810 if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0,

811 false, 0, 0, n_channels, channels) != 0) {

812 ath6kl_err("wmi_startscan_cmd failed\n");

813 ret = -EIO;

814 }

815

816 ar->scan_req = request;

817

818 kfree(channels);

819

820 return ret;

821 }

822

823 void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status)

824 {

825 int i;

826

827 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status);

828

829 if (!ar->scan_req)

830 return;

831

832 if ((status == -ECANCELED) || (status == -EBUSY)) {

833 cfg80211_scan_done(ar->scan_req, true);

834 goto out;

835 }

836

837 /* Translate data to cfg80211 mgmt format */

838 wlan_iterate_nodes(&ar->scan_table, ar->wdev->wiphy);

839

840 cfg80211_scan_done(ar->scan_req, false);

841

842 if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) {

843 for (i = 0; i < ar->scan_req->n_ssids; i++) {

844 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,

845 DISABLE_SSID_FLAG,

846 0, NULL);

847 }

848 }

849

850 out:

851 ar->scan_req = NULL;

852 }

853

854 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,

855 u8 key_index, bool pairwise,

856 const u8 *mac_addr,

857 struct key_params *params)

858 {

859 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);

860 struct ath6kl_key *key = NULL;

861 u8 key_usage;

862 u8 key_type;

863 int status = 0;

864

865 if (!ath6kl_cfg80211_ready(ar))

866 return -EIO;

867

868 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {

869 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

870 "%s: key index %d out of bounds\n", __func__,

871 key_index);

872 return -ENOENT;

873 }

874

875 key = &ar->keys[key_index];

876 memset(key, 0, sizeof(struct ath6kl_key));

877

878 if (pairwise)

879 key_usage = PAIRWISE_USAGE;

880 else

881 key_usage = GROUP_USAGE;

882

883 if (params) {

884 if (params->key_len > WLAN_MAX_KEY_LEN ||

885 params->seq_len > sizeof(key->seq))

886 return -EINVAL;

887

888 key->key_len = params->key_len;

889 memcpy(key->key, params->key, key->key_len);

890 key->seq_len = params->seq_len;

891 memcpy(key->seq, params->seq, key->seq_len);

892 key->cipher = params->cipher;

893 }

894

895 switch (key->cipher) {

896 case WLAN_CIPHER_SUITE_WEP40:

897 case WLAN_CIPHER_SUITE_WEP104:

898 key_type = WEP_CRYPT;

899 break;

900

901 case WLAN_CIPHER_SUITE_TKIP:

902 key_type = TKIP_CRYPT;

903 break;

904

905 case WLAN_CIPHER_SUITE_CCMP:

906 key_type = AES_CRYPT;

907 break;

908

909 default:

910 return -ENOTSUPP;

911 }

912

913 if (((ar->auth_mode == WPA_PSK_AUTH)

914 || (ar->auth_mode == WPA2_PSK_AUTH))

915 && (key_usage & GROUP_USAGE))

916 del_timer(&ar->disconnect_timer);

917

918 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

919 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",

920 __func__, key_index, key->key_len, key_type,

921 key_usage, key->seq_len);

922

923 ar->def_txkey_index = key_index;

924

925 if (ar->nw_type == AP_NETWORK && !pairwise &&

926 (key_type == TKIP_CRYPT || key_type == AES_CRYPT) && params) {

927 ar->ap_mode_bkey.valid = true;

928 ar->ap_mode_bkey.key_index = key_index;

929 ar->ap_mode_bkey.key_type = key_type;

930 ar->ap_mode_bkey.key_len = key->key_len;

931 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);

932 if (!test_bit(CONNECTED, &ar->flag)) {

933 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group "

934 "key configuration until AP mode has been "

935 "started\n");

936 /*

937 * The key will be set in ath6kl_connect_ap_mode() once

938 * the connected event is received from the target.

939 */

940 return 0;

941 }

942 }

943

944 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,

945 key_type, key_usage, key->key_len,

946 key->seq, key->key, KEY_OP_INIT_VAL,

947 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);

948

949 if (status)

950 return -EIO;

951

952 return 0;

953 }

954

955 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,

956 u8 key_index, bool pairwise,

957 const u8 *mac_addr)

958 {

959 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);

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 if (!ar->keys[key_index].key_len) {

974 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

975 "%s: index %d is empty\n", __func__, key_index);

976 return 0;

977 }

978

979 ar->keys[key_index].key_len = 0;

980

981 return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index);

982 }

983

984 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,

985 u8 key_index, bool pairwise,

986 const u8 *mac_addr, void *cookie,

987 void (*callback) (void *cookie,

988 struct key_params *))

989 {

990 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);

991 struct ath6kl_key *key = NULL;

992 struct key_params params;

993

994 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);

995

996 if (!ath6kl_cfg80211_ready(ar))

997 return -EIO;

998

999 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {

1000 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

1001 "%s: key index %d out of bounds\n", __func__,

1002 key_index);

1003 return -ENOENT;

1004 }

1005

1006 key = &ar->keys[key_index];

1007 memset(&params, 0, sizeof(params));

1008 params.cipher = key->cipher;

1009 params.key_len = key->key_len;

1010 params.seq_len = key->seq_len;

1011 params.seq = key->seq;

1012 params.key = key->key;

1013

1014 callback(cookie, &params);

1015

1016 return key->key_len ? 0 : -ENOENT;

1017 }

1018

1019 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,

1020 struct net_device *ndev,

1021 u8 key_index, bool unicast,

1022 bool multicast)

1023 {

1024 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);

1025 struct ath6kl_key *key = NULL;

1026 int status = 0;

1027 u8 key_usage;

1028 enum crypto_type key_type = NONE_CRYPT;

1029

1030 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);

1031

1032 if (!ath6kl_cfg80211_ready(ar))

1033 return -EIO;

1034

1035 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {

1036 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

1037 "%s: key index %d out of bounds\n",

1038 __func__, key_index);

1039 return -ENOENT;

1040 }

1041

1042 if (!ar->keys[key_index].key_len) {

1043 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",

1044 __func__, key_index);

1045 return -EINVAL;

1046 }

1047

1048 ar->def_txkey_index = key_index;

1049 key = &ar->keys[ar->def_txkey_index];

1050 key_usage = GROUP_USAGE;

1051 if (ar->prwise_crypto == WEP_CRYPT)

1052 key_usage |= TX_USAGE;

1053 if (unicast)

1054 key_type = ar->prwise_crypto;

1055 if (multicast)

1056 key_type = ar->grp_crypto;

1057

1058 if (ar->nw_type == AP_NETWORK && !test_bit(CONNECTED, &ar->flag))

1059 return 0; /* Delay until AP mode has been started */

1060

1061 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,

1062 key_type, key_usage,

1063 key->key_len, key->seq, key->key,

1064 KEY_OP_INIT_VAL, NULL,

1065 SYNC_BOTH_WMIFLAG);

1066 if (status)

1067 return -EIO;

1068

1069 return 0;

1070 }

1071

1072 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid,

1073 bool ismcast)

1074 {

1075 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

1076 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);

1077

1078 cfg80211_michael_mic_failure(ar->net_dev, ar->bssid,

1079 (ismcast ? NL80211_KEYTYPE_GROUP :

1080 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,

1081 GFP_KERNEL);

1082 }

1083

1084 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)

1085 {

1086 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);

1087 int ret;

1088

1089 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,

1090 changed);

1091

1092 if (!ath6kl_cfg80211_ready(ar))

1093 return -EIO;

1094

1095 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {

1096 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);

1097 if (ret != 0) {

1098 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");

1099 return -EIO;

1100 }

1101 }

1102

1103 return 0;

1104 }

1105

1106 /*

1107 * The type nl80211_tx_power_setting replaces the following

1108 * data type from 2.6.36 onwards

1109 */

1110 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,

1111 enum nl80211_tx_power_setting type,

1112 int dbm)

1113 {

1114 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);

1115 u8 ath6kl_dbm;

1116

1117 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,

1118 type, dbm);

1119

1120 if (!ath6kl_cfg80211_ready(ar))

1121 return -EIO;

1122

1123 switch (type) {

1124 case NL80211_TX_POWER_AUTOMATIC:

1125 return 0;

1126 case NL80211_TX_POWER_LIMITED:

1127 ar->tx_pwr = ath6kl_dbm = dbm;

1128 break;

1129 default:

1130 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",

1131 __func__, type);

1132 return -EOPNOTSUPP;

1133 }

1134

1135 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm);

1136

1137 return 0;

1138 }

1139

1140 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)

1141 {

1142 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);

1143

1144 if (!ath6kl_cfg80211_ready(ar))

1145 return -EIO;

1146

1147 if (test_bit(CONNECTED, &ar->flag)) {

1148 ar->tx_pwr = 0;

1149

1150 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) {

1151 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");

1152 return -EIO;

1153 }

1154

1155 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,

1156 5 * HZ);

1157

1158 if (signal_pending(current)) {

1159 ath6kl_err("target did not respond\n");

1160 return -EINTR;

1161 }

1162 }

1163

1164 *dbm = ar->tx_pwr;

1165 return 0;

1166 }

1167

1168 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,

1169 struct net_device *dev,

1170 bool pmgmt, int timeout)

1171 {

1172 struct ath6kl *ar = ath6kl_priv(dev);

1173 struct wmi_power_mode_cmd mode;

1174

1175 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",

1176 __func__, pmgmt, timeout);

1177

1178 if (!ath6kl_cfg80211_ready(ar))

1179 return -EIO;

1180

1181 if (pmgmt) {

1182 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);

1183 mode.pwr_mode = REC_POWER;

1184 } else {

1185 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);

1186 mode.pwr_mode = MAX_PERF_POWER;

1187 }

1188

1189 if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) {

1190 ath6kl_err("wmi_powermode_cmd failed\n");

1191 return -EIO;

1192 }

1193

1194 return 0;

1195 }

1196

1197 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,

1198 struct net_device *ndev,

1199 enum nl80211_iftype type, u32 *flags,

1200 struct vif_params *params)

1201 {

1202 struct ath6kl *ar = ath6kl_priv(ndev);

1203 struct wireless_dev *wdev = ar->wdev;

1204

1205 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);

1206

1207 if (!ath6kl_cfg80211_ready(ar))

1208 return -EIO;

1209

1210 switch (type) {

1211 case NL80211_IFTYPE_STATION:

1212 ar->next_mode = INFRA_NETWORK;

1213 break;

1214 case NL80211_IFTYPE_ADHOC:

1215 ar->next_mode = ADHOC_NETWORK;

1216 break;

1217 case NL80211_IFTYPE_P2P_CLIENT:

1218 ar->next_mode = INFRA_NETWORK;

1219 break;

1220 case NL80211_IFTYPE_P2P_GO:

1221 ar->next_mode = AP_NETWORK;

1222 break;

1223 default:

1224 ath6kl_err("invalid interface type %u\n", type);

1225 return -EOPNOTSUPP;

1226 }

1227

1228 wdev->iftype = type;

1229

1230 return 0;

1231 }

1232

1233 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,

1234 struct net_device *dev,

1235 struct cfg80211_ibss_params *ibss_param)

1236 {

1237 struct ath6kl *ar = ath6kl_priv(dev);

1238 int status;

1239

1240 if (!ath6kl_cfg80211_ready(ar))

1241 return -EIO;

1242

1243 ar->ssid_len = ibss_param->ssid_len;

1244 memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len);

1245

1246 if (ibss_param->channel)

1247 ar->ch_hint = ibss_param->channel->center_freq;

1248

1249 if (ibss_param->channel_fixed) {

1250 /*

1251 * TODO: channel_fixed: The channel should be fixed, do not

1252 * search for IBSSs to join on other channels. Target

1253 * firmware does not support this feature, needs to be

1254 * updated.

1255 */

1256 return -EOPNOTSUPP;

1257 }

1258

1259 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));

1260 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))

1261 memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid));

1262

1263 ath6kl_set_wpa_version(ar, 0);

1264

1265 status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM);

1266 if (status)

1267 return status;

1268

1269 if (ibss_param->privacy) {

1270 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true);

1271 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false);

1272 } else {

1273 ath6kl_set_cipher(ar, 0, true);

1274 ath6kl_set_cipher(ar, 0, false);

1275 }

1276

1277 ar->nw_type = ar->next_mode;

1278

1279 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,

1280 "%s: connect called with authmode %d dot11 auth %d"

1281 " PW crypto %d PW crypto len %d GRP crypto %d"

1282 " GRP crypto len %d channel hint %u\n",

1283 __func__,

1284 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,

1285 ar->prwise_crypto_len, ar->grp_crypto,

1286 ar->grp_crypto_len, ar->ch_hint);

1287

1288 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,

1289 ar->dot11_auth_mode, ar->auth_mode,

1290 ar->prwise_crypto,

1291 ar->prwise_crypto_len,

1292 ar->grp_crypto, ar->grp_crypto_len,

1293 ar->ssid_len, ar->ssid,

1294 ar->req_bssid, ar->ch_hint,

1295 ar->connect_ctrl_flags);

1296 set_bit(CONNECT_PEND, &ar->flag);

1297

1298 return 0;

1299 }

1300

1301 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,

1302 struct net_device *dev)

1303 {

1304 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);

1305

1306 if (!ath6kl_cfg80211_ready(ar))

1307 return -EIO;

1308

1309 ath6kl_disconnect(ar);

1310 memset(ar->ssid, 0, sizeof(ar->ssid));

1311 ar->ssid_len = 0;

1312

1313 return 0;

1314 }

1315

1316 static const u32 cipher_suites[] = {

1317 WLAN_CIPHER_SUITE_WEP40,

1318 WLAN_CIPHER_SUITE_WEP104,

1319 WLAN_CIPHER_SUITE_TKIP,

1320 WLAN_CIPHER_SUITE_CCMP,

1321 };

1322

1323 static bool is_rate_legacy(s32 rate)

1324 {

1325 static const s32 legacy[] = { 1000, 2000, 5500, 11000,

1326 6000, 9000, 12000, 18000, 24000,

1327 36000, 48000, 54000

1328 };

1329 u8 i;

1330

1331 for (i = 0; i < ARRAY_SIZE(legacy); i++)

1332 if (rate == legacy[i])

1333 return true;

1334

1335 return false;

1336 }

1337

1338 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)

1339 {

1340 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,

1341 52000, 58500, 65000, 72200

1342 };

1343 u8 i;

1344

1345 for (i = 0; i < ARRAY_SIZE(ht20); i++) {

1346 if (rate == ht20[i]) {

1347 if (i == ARRAY_SIZE(ht20) - 1)

1348 /* last rate uses sgi */

1349 *sgi = true;

1350 else

1351 *sgi = false;

1352

1353 *mcs = i;

1354 return true;

1355 }

1356 }

1357 return false;

1358 }

1359

1360 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)

1361 {

1362 static const s32 ht40[] = { 13500, 27000, 40500, 54000,

1363 81000, 108000, 121500, 135000,

1364 150000

1365 };

1366 u8 i;

1367

1368 for (i = 0; i < ARRAY_SIZE(ht40); i++) {

1369 if (rate == ht40[i]) {

1370 if (i == ARRAY_SIZE(ht40) - 1)

1371 /* last rate uses sgi */

1372 *sgi = true;

1373 else

1374 *sgi = false;

1375

1376 *mcs = i;

1377 return true;

1378 }

1379 }

1380

1381 return false;

1382 }

1383

1384 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,

1385 u8 *mac, struct station_info *sinfo)

1386 {

1387 struct ath6kl *ar = ath6kl_priv(dev);

1388 long left;

1389 bool sgi;

1390 s32 rate;

1391 int ret;

1392 u8 mcs;

1393

1394 if (memcmp(mac, ar->bssid, ETH_ALEN) != 0)

1395 return -ENOENT;

1396

1397 if (down_interruptible(&ar->sem))

1398 return -EBUSY;

1399

1400 set_bit(STATS_UPDATE_PEND, &ar->flag);

1401

1402 ret = ath6kl_wmi_get_stats_cmd(ar->wmi);

1403

1404 if (ret != 0) {

1405 up(&ar->sem);

1406 return -EIO;

1407 }

1408

1409 left = wait_event_interruptible_timeout(ar->event_wq,

1410 !test_bit(STATS_UPDATE_PEND,

1411 &ar->flag),

1412 WMI_TIMEOUT);

1413

1414 up(&ar->sem);

1415

1416 if (left == 0)

1417 return -ETIMEDOUT;

1418 else if (left < 0)

1419 return left;

1420

1421 if (ar->target_stats.rx_byte) {

1422 sinfo->rx_bytes = ar->target_stats.rx_byte;

1423 sinfo->filled |= STATION_INFO_RX_BYTES;

1424 sinfo->rx_packets = ar->target_stats.rx_pkt;

1425 sinfo->filled |= STATION_INFO_RX_PACKETS;

1426 }

1427

1428 if (ar->target_stats.tx_byte) {

1429 sinfo->tx_bytes = ar->target_stats.tx_byte;

1430 sinfo->filled |= STATION_INFO_TX_BYTES;

1431 sinfo->tx_packets = ar->target_stats.tx_pkt;

1432 sinfo->filled |= STATION_INFO_TX_PACKETS;

1433 }

1434

1435 sinfo->signal = ar->target_stats.cs_rssi;

1436 sinfo->filled |= STATION_INFO_SIGNAL;

1437

1438 rate = ar->target_stats.tx_ucast_rate;

1439

1440 if (is_rate_legacy(rate)) {

1441 sinfo->txrate.legacy = rate / 100;

1442 } else if (is_rate_ht20(rate, &mcs, &sgi)) {

1443 if (sgi) {

1444 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;

1445 sinfo->txrate.mcs = mcs - 1;

1446 } else {

1447 sinfo->txrate.mcs = mcs;

1448 }

1449

1450 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;

1451 } else if (is_rate_ht40(rate, &mcs, &sgi)) {

1452 if (sgi) {

1453 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;

1454 sinfo->txrate.mcs = mcs - 1;

1455 } else {

1456 sinfo->txrate.mcs = mcs;

1457 }

1458

1459 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;

1460 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;

1461 } else {

1462 ath6kl_warn("invalid rate: %d\n", rate);

1463 return 0;

1464 }

1465

1466 sinfo->filled |= STATION_INFO_TX_BITRATE;

1467

1468 return 0;

1469 }

1470

1471 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,

1472 struct cfg80211_pmksa *pmksa)

1473 {

1474 struct ath6kl *ar = ath6kl_priv(netdev);

1475 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,

1476 pmksa->pmkid, true);

1477 }

1478

1479 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,

1480 struct cfg80211_pmksa *pmksa)

1481 {

1482 struct ath6kl *ar = ath6kl_priv(netdev);

1483 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,

1484 pmksa->pmkid, false);

1485 }

1486

1487 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)

1488 {

1489 struct ath6kl *ar = ath6kl_priv(netdev);

1490 if (test_bit(CONNECTED, &ar->flag))

1491 return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false);

1492 return 0;

1493 }

1494

1495 #ifdef CONFIG_PM

1496 static int ar6k_cfg80211_suspend(struct wiphy *wiphy,

1497 struct cfg80211_wowlan *wow)

1498 {

1499 struct ath6kl *ar = wiphy_priv(wiphy);

1500

1501 return ath6kl_hif_suspend(ar);

1502 }

1503 #endif

1504

1505 static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,

1506 struct ieee80211_channel *chan,

1507 enum nl80211_channel_type channel_type)

1508 {

1509 struct ath6kl *ar = ath6kl_priv(dev);

1510

1511 if (!ath6kl_cfg80211_ready(ar))

1512 return -EIO;

1513

1514 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",

1515 __func__, chan->center_freq, chan->hw_value);

1516 ar->next_chan = chan->center_freq;

1517

1518 return 0;

1519 }

1520

1521 static bool ath6kl_is_p2p_ie(const u8 *pos)

1522 {

1523 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&

1524 pos[2] == 0x50 && pos[3] == 0x6f &&

1525 pos[4] == 0x9a && pos[5] == 0x09;

1526 }

1527

1528 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl *ar, const u8 *ies,

1529 size_t ies_len)

1530 {

1531 const u8 *pos;

1532 u8 *buf = NULL;

1533 size_t len = 0;

1534 int ret;

1535

1536 /*

1537 * Filter out P2P IE(s) since they will be included depending on

1538 * the Probe Request frame in ath6kl_send_go_probe_resp().

1539 */

1540

1541 if (ies && ies_len) {

1542 buf = kmalloc(ies_len, GFP_KERNEL);

1543 if (buf == NULL)

1544 return -ENOMEM;

1545 pos = ies;

1546 while (pos + 1 < ies + ies_len) {

1547 if (pos + 2 + pos[1] > ies + ies_len)

1548 break;

1549 if (!ath6kl_is_p2p_ie(pos)) {

1550 memcpy(buf + len, pos, 2 + pos[1]);

1551 len += 2 + pos[1];

1552 }

1553 pos += 2 + pos[1];

1554 }

1555 }

1556

1557 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_RESP,

1558 buf, len);

1559 kfree(buf);

1560 return ret;

1561 }

1562

1563 static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev,

1564 struct beacon_parameters *info, bool add)

1565 {

1566 struct ath6kl *ar = ath6kl_priv(dev);

1567 struct ieee80211_mgmt *mgmt;

1568 u8 *ies;

1569 int ies_len;

1570 struct wmi_connect_cmd p;

1571 int res;

1572 int i;

1573

1574 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add);

1575

1576 if (!ath6kl_cfg80211_ready(ar))

1577 return -EIO;

1578

1579 if (ar->next_mode != AP_NETWORK)

1580 return -EOPNOTSUPP;

1581

1582 if (info->beacon_ies) {

1583 res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_BEACON,

1584 info->beacon_ies,

1585 info->beacon_ies_len);

1586 if (res)

1587 return res;

1588 }

1589 if (info->proberesp_ies) {

1590 res = ath6kl_set_ap_probe_resp_ies(ar, info->proberesp_ies,

1591 info->proberesp_ies_len);

1592 if (res)

1593 return res;

1594 }

1595 if (info->assocresp_ies) {

1596 res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_ASSOC_RESP,

1597 info->assocresp_ies,

1598 info->assocresp_ies_len);

1599 if (res)

1600 return res;

1601 }

1602

1603 if (!add)

1604 return 0;

1605

1606 ar->ap_mode_bkey.valid = false;

1607

1608 /* TODO:

1609 * info->interval

1610 * info->dtim_period

1611 */

1612

1613 if (info->head == NULL)

1614 return -EINVAL;

1615 mgmt = (struct ieee80211_mgmt *) info->head;

1616 ies = mgmt->u.beacon.variable;

1617 if (ies > info->head + info->head_len)

1618 return -EINVAL;

1619 ies_len = info->head + info->head_len - ies;

1620

1621 if (info->ssid == NULL)

1622 return -EINVAL;

1623 memcpy(ar->ssid, info->ssid, info->ssid_len);

1624 ar->ssid_len = info->ssid_len;

1625 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)

1626 return -EOPNOTSUPP; /* TODO */

1627

1628 ar->dot11_auth_mode = OPEN_AUTH;

1629

1630 memset(&p, 0, sizeof(p));

1631

1632 for (i = 0; i < info->crypto.n_akm_suites; i++) {

1633 switch (info->crypto.akm_suites[i]) {

1634 case WLAN_AKM_SUITE_8021X:

1635 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)

1636 p.auth_mode |= WPA_AUTH;

1637 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)

1638 p.auth_mode |= WPA2_AUTH;

1639 break;

1640 case WLAN_AKM_SUITE_PSK:

1641 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)

1642 p.auth_mode |= WPA_PSK_AUTH;

1643 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)

1644 p.auth_mode |= WPA2_PSK_AUTH;

1645 break;

1646 }

1647 }

1648 if (p.auth_mode == 0)

1649 p.auth_mode = NONE_AUTH;

1650 ar->auth_mode = p.auth_mode;

1651

1652 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {

1653 switch (info->crypto.ciphers_pairwise[i]) {

1654 case WLAN_CIPHER_SUITE_WEP40:

1655 case WLAN_CIPHER_SUITE_WEP104:

1656 p.prwise_crypto_type |= WEP_CRYPT;

1657 break;

1658 case WLAN_CIPHER_SUITE_TKIP:

1659 p.prwise_crypto_type |= TKIP_CRYPT;

1660 break;

1661 case WLAN_CIPHER_SUITE_CCMP:

1662 p.prwise_crypto_type |= AES_CRYPT;

1663 break;

1664 }

1665 }

1666 if (p.prwise_crypto_type == 0) {

1667 p.prwise_crypto_type = NONE_CRYPT;

1668 ath6kl_set_cipher(ar, 0, true);

1669 } else if (info->crypto.n_ciphers_pairwise == 1)

1670 ath6kl_set_cipher(ar, info->crypto.ciphers_pairwise[0], true);

1671

1672 switch (info->crypto.cipher_group) {

1673 case WLAN_CIPHER_SUITE_WEP40:

1674 case WLAN_CIPHER_SUITE_WEP104:

1675 p.grp_crypto_type = WEP_CRYPT;

1676 break;

1677 case WLAN_CIPHER_SUITE_TKIP:

1678 p.grp_crypto_type = TKIP_CRYPT;

1679 break;

1680 case WLAN_CIPHER_SUITE_CCMP:

1681 p.grp_crypto_type = AES_CRYPT;

1682 break;

1683 default:

1684 p.grp_crypto_type = NONE_CRYPT;

1685 break;

1686 }

1687 ath6kl_set_cipher(ar, info->crypto.cipher_group, false);

1688

1689 p.nw_type = AP_NETWORK;

1690 ar->nw_type = ar->next_mode;

1691

1692 p.ssid_len = ar->ssid_len;

1693 memcpy(p.ssid, ar->ssid, ar->ssid_len);

1694 p.dot11_auth_mode = ar->dot11_auth_mode;

1695 p.ch = cpu_to_le16(ar->next_chan);

1696

1697 res = ath6kl_wmi_ap_profile_commit(ar->wmi, &p);

1698 if (res < 0)

1699 return res;

1700

1701 return 0;

1702 }

1703

1704 static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev,

1705 struct beacon_parameters *info)

1706 {

1707 return ath6kl_ap_beacon(wiphy, dev, info, true);

1708 }

1709

1710 static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev,

1711 struct beacon_parameters *info)

1712 {

1713 return ath6kl_ap_beacon(wiphy, dev, info, false);

1714 }

1715

1716 static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev)

1717 {

1718 struct ath6kl *ar = ath6kl_priv(dev);

1719

1720 if (ar->nw_type != AP_NETWORK)

1721 return -EOPNOTSUPP;

1722 if (!test_bit(CONNECTED, &ar->flag))

1723 return -ENOTCONN;

1724

1725 ath6kl_wmi_disconnect_cmd(ar->wmi);

1726 clear_bit(CONNECTED, &ar->flag);

1727

1728 return 0;

1729 }

1730

1731 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,

1732 u8 *mac, struct station_parameters *params)

1733 {

1734 struct ath6kl *ar = ath6kl_priv(dev);

1735

1736 if (ar->nw_type != AP_NETWORK)

1737 return -EOPNOTSUPP;

1738

1739 /* Use this only for authorizing/unauthorizing a station */

1740 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))

1741 return -EOPNOTSUPP;

1742

1743 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))

1744 return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_AUTHORIZE,

1745 mac, 0);

1746 return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_UNAUTHORIZE, mac,

1747 0);

1748 }

1749

1750 static int ath6kl_remain_on_channel(struct wiphy *wiphy,

1751 struct net_device *dev,

1752 struct ieee80211_channel *chan,

1753 enum nl80211_channel_type channel_type,

1754 unsigned int duration,

1755 u64 *cookie)

1756 {

1757 struct ath6kl *ar = ath6kl_priv(dev);

1758

1759 /* TODO: if already pending or ongoing remain-on-channel,

1760 * return -EBUSY */

1761 *cookie = 1; /* only a single pending request is supported */

1762

1763 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, chan->center_freq,

1764 duration);

1765 }

1766

1767 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,

1768 struct net_device *dev,

1769 u64 cookie)

1770 {

1771 struct ath6kl *ar = ath6kl_priv(dev);

1772

1773 if (cookie != 1)

1774 return -ENOENT;

1775

1776 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi);

1777 }

1778

1779 static int ath6kl_send_go_probe_resp(struct ath6kl *ar, const u8 *buf,

1780 size_t len, unsigned int freq)

1781 {

1782 const u8 *pos;

1783 u8 *p2p;

1784 int p2p_len;

1785 int ret;

1786 const struct ieee80211_mgmt *mgmt;

1787

1788 mgmt = (const struct ieee80211_mgmt *) buf;

1789

1790 /* Include P2P IE(s) from the frame generated in user space. */

1791

1792 p2p = kmalloc(len, GFP_KERNEL);

1793 if (p2p == NULL)

1794 return -ENOMEM;

1795 p2p_len = 0;

1796

1797 pos = mgmt->u.probe_resp.variable;

1798 while (pos + 1 < buf + len) {

1799 if (pos + 2 + pos[1] > buf + len)

1800 break;

1801 if (ath6kl_is_p2p_ie(pos)) {

1802 memcpy(p2p + p2p_len, pos, 2 + pos[1]);

1803 p2p_len += 2 + pos[1];

1804 }

1805 pos += 2 + pos[1];

1806 }

1807

1808 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, freq, mgmt->da,

1809 p2p, p2p_len);

1810 kfree(p2p);

1811 return ret;

1812 }

1813

1814 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,

1815 struct ieee80211_channel *chan, bool offchan,

1816 enum nl80211_channel_type channel_type,

1817 bool channel_type_valid, unsigned int wait,

1818 const u8 *buf, size_t len, u64 *cookie)

1819 {

1820 struct ath6kl *ar = ath6kl_priv(dev);

1821 u32 id;

1822 const struct ieee80211_mgmt *mgmt;

1823

1824 mgmt = (const struct ieee80211_mgmt *) buf;

1825 if (buf + len >= mgmt->u.probe_resp.variable &&

1826 ar->nw_type == AP_NETWORK && test_bit(CONNECTED, &ar->flag) &&

1827 ieee80211_is_probe_resp(mgmt->frame_control)) {

1828 /*

1829 * Send Probe Response frame in AP mode using a separate WMI

1830 * command to allow the target to fill in the generic IEs.

1831 */

1832 *cookie = 0; /* TX status not supported */

1833 return ath6kl_send_go_probe_resp(ar, buf, len,

1834 chan->center_freq);

1835 }

1836

1837 id = ar->send_action_id++;

1838 if (id == 0) {

1839 /*

1840 * 0 is a reserved value in the WMI command and shall not be

1841 * used for the command.

1842 */

1843 id = ar->send_action_id++;

1844 }

1845

1846 *cookie = id;

1847 return ath6kl_wmi_send_action_cmd(ar->wmi, id, chan->center_freq, wait,

1848 buf, len);

1849 }

1850

1851 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,

1852 struct net_device *dev,

1853 u16 frame_type, bool reg)

1854 {

1855 struct ath6kl *ar = ath6kl_priv(dev);

1856

1857 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",

1858 __func__, frame_type, reg);

1859 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {

1860 /*

1861 * Note: This notification callback is not allowed to sleep, so

1862 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we

1863 * hardcode target to report Probe Request frames all the time.

1864 */

1865 ar->probe_req_report = reg;

1866 }

1867 }

1868

1869 static const struct ieee80211_txrx_stypes

1870 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {

1871 [NL80211_IFTYPE_STATION] = {

1872 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1873 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),

1874 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1875 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)

1876 },

1877 [NL80211_IFTYPE_P2P_CLIENT] = {

1878 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1879 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),

1880 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1881 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)

1882 },

1883 [NL80211_IFTYPE_P2P_GO] = {

1884 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1885 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),

1886 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |

1887 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)

1888 },

1889 };

1890

1891 static struct cfg80211_ops ath6kl_cfg80211_ops = {

1892 .change_virtual_intf = ath6kl_cfg80211_change_iface,

1893 .scan = ath6kl_cfg80211_scan,

1894 .connect = ath6kl_cfg80211_connect,

1895 .disconnect = ath6kl_cfg80211_disconnect,

1896 .add_key = ath6kl_cfg80211_add_key,

1897 .get_key = ath6kl_cfg80211_get_key,

1898 .del_key = ath6kl_cfg80211_del_key,

1899 .set_default_key = ath6kl_cfg80211_set_default_key,

1900 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,

1901 .set_tx_power = ath6kl_cfg80211_set_txpower,

1902 .get_tx_power = ath6kl_cfg80211_get_txpower,

1903 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,

1904 .join_ibss = ath6kl_cfg80211_join_ibss,

1905 .leave_ibss = ath6kl_cfg80211_leave_ibss,

1906 .get_station = ath6kl_get_station,

1907 .set_pmksa = ath6kl_set_pmksa,

1908 .del_pmksa = ath6kl_del_pmksa,

1909 .flush_pmksa = ath6kl_flush_pmksa,

1910 #ifdef CONFIG_PM

1911 .suspend = ar6k_cfg80211_suspend,

1912 #endif

1913 .set_channel = ath6kl_set_channel,

1914 .add_beacon = ath6kl_add_beacon,

1915 .set_beacon = ath6kl_set_beacon,

1916 .del_beacon = ath6kl_del_beacon,

1917 .change_station = ath6kl_change_station,

1918 .remain_on_channel = ath6kl_remain_on_channel,

1919 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,

1920 .mgmt_tx = ath6kl_mgmt_tx,

1921 .mgmt_frame_register = ath6kl_mgmt_frame_register,

1922 };

1923

1924 struct wireless_dev *ath6kl_cfg80211_init(struct device *dev)

1925 {

1926 int ret = 0;

1927 struct wireless_dev *wdev;

1928

1929 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);

1930 if (!wdev) {

1931 ath6kl_err("couldn't allocate wireless device\n");

1932 return NULL;

1933 }

1934

1935 /* create a new wiphy for use with cfg80211 */

1936 wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));

1937 if (!wdev->wiphy) {

1938 ath6kl_err("couldn't allocate wiphy device\n");

1939 kfree(wdev);

1940 return NULL;

1941 }

1942

1943 wdev->wiphy->mgmt_stypes = ath6kl_mgmt_stypes;

1944

1945 wdev->wiphy->max_remain_on_channel_duration = 5000;

1946

1947 /* set device pointer for wiphy */

1948 set_wiphy_dev(wdev->wiphy, dev);

1949

1950 wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |

1951 BIT(NL80211_IFTYPE_ADHOC);

1952 /* max num of ssids that can be probed during scanning */

1953 wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;

1954 wdev->wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */

1955 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;

1956 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;

1957 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;

1958

1959 wdev->wiphy->cipher_suites = cipher_suites;

1960 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);

1961

1962 ret = wiphy_register(wdev->wiphy);

1963 if (ret < 0) {

1964 ath6kl_err("couldn't register wiphy device\n");

1965 wiphy_free(wdev->wiphy);

1966 kfree(wdev);

1967 return NULL;

1968 }

1969

1970 return wdev;

1971 }

1972

1973 void ath6kl_cfg80211_deinit(struct ath6kl *ar)

1974 {

1975 struct wireless_dev *wdev = ar->wdev;

1976

1977 if (ar->scan_req) {

1978 cfg80211_scan_done(ar->scan_req, true);

1979 ar->scan_req = NULL;

1980 }

1981

1982 if (!wdev)

1983 return;

1984

1985 wiphy_unregister(wdev->wiphy);

1986 wiphy_free(wdev->wiphy);

1987 kfree(wdev);

1988 }