cfg80211.c revision 080eec4fb478f10c6f171875634fc3174da1a1c3
1/* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18#include <linux/moduleparam.h> 19#include <linux/inetdevice.h> 20#include <linux/export.h> 21 22#include "core.h" 23#include "cfg80211.h" 24#include "debug.h" 25#include "hif-ops.h" 26#include "testmode.h" 27 28#define RATETAB_ENT(_rate, _rateid, _flags) { \ 29 .bitrate = (_rate), \ 30 .flags = (_flags), \ 31 .hw_value = (_rateid), \ 32} 33 34#define CHAN2G(_channel, _freq, _flags) { \ 35 .band = IEEE80211_BAND_2GHZ, \ 36 .hw_value = (_channel), \ 37 .center_freq = (_freq), \ 38 .flags = (_flags), \ 39 .max_antenna_gain = 0, \ 40 .max_power = 30, \ 41} 42 43#define CHAN5G(_channel, _flags) { \ 44 .band = IEEE80211_BAND_5GHZ, \ 45 .hw_value = (_channel), \ 46 .center_freq = 5000 + (5 * (_channel)), \ 47 .flags = (_flags), \ 48 .max_antenna_gain = 0, \ 49 .max_power = 30, \ 50} 51 52static struct ieee80211_rate ath6kl_rates[] = { 53 RATETAB_ENT(10, 0x1, 0), 54 RATETAB_ENT(20, 0x2, 0), 55 RATETAB_ENT(55, 0x4, 0), 56 RATETAB_ENT(110, 0x8, 0), 57 RATETAB_ENT(60, 0x10, 0), 58 RATETAB_ENT(90, 0x20, 0), 59 RATETAB_ENT(120, 0x40, 0), 60 RATETAB_ENT(180, 0x80, 0), 61 RATETAB_ENT(240, 0x100, 0), 62 RATETAB_ENT(360, 0x200, 0), 63 RATETAB_ENT(480, 0x400, 0), 64 RATETAB_ENT(540, 0x800, 0), 65}; 66 67#define ath6kl_a_rates (ath6kl_rates + 4) 68#define ath6kl_a_rates_size 8 69#define ath6kl_g_rates (ath6kl_rates + 0) 70#define ath6kl_g_rates_size 12 71 72#define ath6kl_g_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 73 IEEE80211_HT_CAP_SGI_20 | \ 74 IEEE80211_HT_CAP_SGI_40) 75 76static struct ieee80211_channel ath6kl_2ghz_channels[] = { 77 CHAN2G(1, 2412, 0), 78 CHAN2G(2, 2417, 0), 79 CHAN2G(3, 2422, 0), 80 CHAN2G(4, 2427, 0), 81 CHAN2G(5, 2432, 0), 82 CHAN2G(6, 2437, 0), 83 CHAN2G(7, 2442, 0), 84 CHAN2G(8, 2447, 0), 85 CHAN2G(9, 2452, 0), 86 CHAN2G(10, 2457, 0), 87 CHAN2G(11, 2462, 0), 88 CHAN2G(12, 2467, 0), 89 CHAN2G(13, 2472, 0), 90 CHAN2G(14, 2484, 0), 91}; 92 93static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 94 CHAN5G(34, 0), CHAN5G(36, 0), 95 CHAN5G(38, 0), CHAN5G(40, 0), 96 CHAN5G(42, 0), CHAN5G(44, 0), 97 CHAN5G(46, 0), CHAN5G(48, 0), 98 CHAN5G(52, 0), CHAN5G(56, 0), 99 CHAN5G(60, 0), CHAN5G(64, 0), 100 CHAN5G(100, 0), CHAN5G(104, 0), 101 CHAN5G(108, 0), CHAN5G(112, 0), 102 CHAN5G(116, 0), CHAN5G(120, 0), 103 CHAN5G(124, 0), CHAN5G(128, 0), 104 CHAN5G(132, 0), CHAN5G(136, 0), 105 CHAN5G(140, 0), CHAN5G(149, 0), 106 CHAN5G(153, 0), CHAN5G(157, 0), 107 CHAN5G(161, 0), CHAN5G(165, 0), 108 CHAN5G(184, 0), CHAN5G(188, 0), 109 CHAN5G(192, 0), CHAN5G(196, 0), 110 CHAN5G(200, 0), CHAN5G(204, 0), 111 CHAN5G(208, 0), CHAN5G(212, 0), 112 CHAN5G(216, 0), 113}; 114 115static struct ieee80211_supported_band ath6kl_band_2ghz = { 116 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 117 .channels = ath6kl_2ghz_channels, 118 .n_bitrates = ath6kl_g_rates_size, 119 .bitrates = ath6kl_g_rates, 120 .ht_cap.cap = ath6kl_g_htcap, 121 .ht_cap.ht_supported = true, 122}; 123 124static struct ieee80211_supported_band ath6kl_band_5ghz = { 125 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 126 .channels = ath6kl_5ghz_a_channels, 127 .n_bitrates = ath6kl_a_rates_size, 128 .bitrates = ath6kl_a_rates, 129 .ht_cap.cap = ath6kl_g_htcap, 130 .ht_cap.ht_supported = true, 131}; 132 133#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 134 135/* returns true if scheduled scan was stopped */ 136static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 137{ 138 struct ath6kl *ar = vif->ar; 139 140 if (ar->state != ATH6KL_STATE_SCHED_SCAN) 141 return false; 142 143 del_timer_sync(&vif->sched_scan_timer); 144 145 ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 146 ATH6KL_HOST_MODE_AWAKE); 147 148 ar->state = ATH6KL_STATE_ON; 149 150 return true; 151} 152 153static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 154{ 155 struct ath6kl *ar = vif->ar; 156 bool stopped; 157 158 stopped = __ath6kl_cfg80211_sscan_stop(vif); 159 160 if (!stopped) 161 return; 162 163 cfg80211_sched_scan_stopped(ar->wiphy); 164} 165 166static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 167 enum nl80211_wpa_versions wpa_version) 168{ 169 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 170 171 if (!wpa_version) { 172 vif->auth_mode = NONE_AUTH; 173 } else if (wpa_version & NL80211_WPA_VERSION_2) { 174 vif->auth_mode = WPA2_AUTH; 175 } else if (wpa_version & NL80211_WPA_VERSION_1) { 176 vif->auth_mode = WPA_AUTH; 177 } else { 178 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 179 return -ENOTSUPP; 180 } 181 182 return 0; 183} 184 185static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 186 enum nl80211_auth_type auth_type) 187{ 188 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 189 190 switch (auth_type) { 191 case NL80211_AUTHTYPE_OPEN_SYSTEM: 192 vif->dot11_auth_mode = OPEN_AUTH; 193 break; 194 case NL80211_AUTHTYPE_SHARED_KEY: 195 vif->dot11_auth_mode = SHARED_AUTH; 196 break; 197 case NL80211_AUTHTYPE_NETWORK_EAP: 198 vif->dot11_auth_mode = LEAP_AUTH; 199 break; 200 201 case NL80211_AUTHTYPE_AUTOMATIC: 202 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 203 break; 204 205 default: 206 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 207 return -ENOTSUPP; 208 } 209 210 return 0; 211} 212 213static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 214{ 215 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 216 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 217 &vif->grp_crypto_len; 218 219 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 220 __func__, cipher, ucast); 221 222 switch (cipher) { 223 case 0: 224 /* our own hack to use value 0 as no crypto used */ 225 *ar_cipher = NONE_CRYPT; 226 *ar_cipher_len = 0; 227 break; 228 case WLAN_CIPHER_SUITE_WEP40: 229 *ar_cipher = WEP_CRYPT; 230 *ar_cipher_len = 5; 231 break; 232 case WLAN_CIPHER_SUITE_WEP104: 233 *ar_cipher = WEP_CRYPT; 234 *ar_cipher_len = 13; 235 break; 236 case WLAN_CIPHER_SUITE_TKIP: 237 *ar_cipher = TKIP_CRYPT; 238 *ar_cipher_len = 0; 239 break; 240 case WLAN_CIPHER_SUITE_CCMP: 241 *ar_cipher = AES_CRYPT; 242 *ar_cipher_len = 0; 243 break; 244 case WLAN_CIPHER_SUITE_SMS4: 245 *ar_cipher = WAPI_CRYPT; 246 *ar_cipher_len = 0; 247 break; 248 default: 249 ath6kl_err("cipher 0x%x not supported\n", cipher); 250 return -ENOTSUPP; 251 } 252 253 return 0; 254} 255 256static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 257{ 258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 259 260 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 261 if (vif->auth_mode == WPA_AUTH) 262 vif->auth_mode = WPA_PSK_AUTH; 263 else if (vif->auth_mode == WPA2_AUTH) 264 vif->auth_mode = WPA2_PSK_AUTH; 265 } else if (key_mgmt == 0x00409600) { 266 if (vif->auth_mode == WPA_AUTH) 267 vif->auth_mode = WPA_AUTH_CCKM; 268 else if (vif->auth_mode == WPA2_AUTH) 269 vif->auth_mode = WPA2_AUTH_CCKM; 270 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 271 vif->auth_mode = NONE_AUTH; 272 } 273} 274 275static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 276{ 277 struct ath6kl *ar = vif->ar; 278 279 if (!test_bit(WMI_READY, &ar->flag)) { 280 ath6kl_err("wmi is not ready\n"); 281 return false; 282 } 283 284 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 285 ath6kl_err("wlan disabled\n"); 286 return false; 287 } 288 289 return true; 290} 291 292static bool ath6kl_is_wpa_ie(const u8 *pos) 293{ 294 return pos[0] == WLAN_EID_WPA && pos[1] >= 4 && 295 pos[2] == 0x00 && pos[3] == 0x50 && 296 pos[4] == 0xf2 && pos[5] == 0x01; 297} 298 299static bool ath6kl_is_rsn_ie(const u8 *pos) 300{ 301 return pos[0] == WLAN_EID_RSN; 302} 303 304static bool ath6kl_is_wps_ie(const u8 *pos) 305{ 306 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 307 pos[1] >= 4 && 308 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 309 pos[5] == 0x04); 310} 311 312static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 313 size_t ies_len) 314{ 315 struct ath6kl *ar = vif->ar; 316 const u8 *pos; 317 u8 *buf = NULL; 318 size_t len = 0; 319 int ret; 320 321 /* 322 * Clear previously set flag 323 */ 324 325 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 326 327 /* 328 * Filter out RSN/WPA IE(s) 329 */ 330 331 if (ies && ies_len) { 332 buf = kmalloc(ies_len, GFP_KERNEL); 333 if (buf == NULL) 334 return -ENOMEM; 335 pos = ies; 336 337 while (pos + 1 < ies + ies_len) { 338 if (pos + 2 + pos[1] > ies + ies_len) 339 break; 340 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 341 memcpy(buf + len, pos, 2 + pos[1]); 342 len += 2 + pos[1]; 343 } 344 345 if (ath6kl_is_wps_ie(pos)) 346 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 347 348 pos += 2 + pos[1]; 349 } 350 } 351 352 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 353 WMI_FRAME_ASSOC_REQ, buf, len); 354 kfree(buf); 355 return ret; 356} 357 358static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 359{ 360 switch (type) { 361 case NL80211_IFTYPE_STATION: 362 *nw_type = INFRA_NETWORK; 363 break; 364 case NL80211_IFTYPE_ADHOC: 365 *nw_type = ADHOC_NETWORK; 366 break; 367 case NL80211_IFTYPE_AP: 368 *nw_type = AP_NETWORK; 369 break; 370 case NL80211_IFTYPE_P2P_CLIENT: 371 *nw_type = INFRA_NETWORK; 372 break; 373 case NL80211_IFTYPE_P2P_GO: 374 *nw_type = AP_NETWORK; 375 break; 376 default: 377 ath6kl_err("invalid interface type %u\n", type); 378 return -ENOTSUPP; 379 } 380 381 return 0; 382} 383 384static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 385 u8 *if_idx, u8 *nw_type) 386{ 387 int i; 388 389 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 390 return false; 391 392 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 393 ar->num_vif)) 394 return false; 395 396 if (type == NL80211_IFTYPE_STATION || 397 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 398 for (i = 0; i < ar->vif_max; i++) { 399 if ((ar->avail_idx_map >> i) & BIT(0)) { 400 *if_idx = i; 401 return true; 402 } 403 } 404 } 405 406 if (type == NL80211_IFTYPE_P2P_CLIENT || 407 type == NL80211_IFTYPE_P2P_GO) { 408 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 409 if ((ar->avail_idx_map >> i) & BIT(0)) { 410 *if_idx = i; 411 return true; 412 } 413 } 414 } 415 416 return false; 417} 418 419static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 420 struct cfg80211_connect_params *sme) 421{ 422 struct ath6kl *ar = ath6kl_priv(dev); 423 struct ath6kl_vif *vif = netdev_priv(dev); 424 int status; 425 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 426 427 ath6kl_cfg80211_sscan_disable(vif); 428 429 vif->sme_state = SME_CONNECTING; 430 431 if (!ath6kl_cfg80211_ready(vif)) 432 return -EIO; 433 434 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 435 ath6kl_err("destroy in progress\n"); 436 return -EBUSY; 437 } 438 439 if (test_bit(SKIP_SCAN, &ar->flag) && 440 ((sme->channel && sme->channel->center_freq == 0) || 441 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 442 ath6kl_err("SkipScan: channel or bssid invalid\n"); 443 return -EINVAL; 444 } 445 446 if (down_interruptible(&ar->sem)) { 447 ath6kl_err("busy, couldn't get access\n"); 448 return -ERESTARTSYS; 449 } 450 451 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 452 ath6kl_err("busy, destroy in progress\n"); 453 up(&ar->sem); 454 return -EBUSY; 455 } 456 457 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 458 /* 459 * sleep until the command queue drains 460 */ 461 wait_event_interruptible_timeout(ar->event_wq, 462 ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0, 463 WMI_TIMEOUT); 464 if (signal_pending(current)) { 465 ath6kl_err("cmd queue drain timeout\n"); 466 up(&ar->sem); 467 return -EINTR; 468 } 469 } 470 471 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 472 if (status) { 473 up(&ar->sem); 474 return status; 475 } 476 477 if (sme->ie == NULL || sme->ie_len == 0) 478 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 479 480 if (test_bit(CONNECTED, &vif->flags) && 481 vif->ssid_len == sme->ssid_len && 482 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 483 vif->reconnect_flag = true; 484 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 485 vif->req_bssid, 486 vif->ch_hint); 487 488 up(&ar->sem); 489 if (status) { 490 ath6kl_err("wmi_reconnect_cmd failed\n"); 491 return -EIO; 492 } 493 return 0; 494 } else if (vif->ssid_len == sme->ssid_len && 495 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 496 ath6kl_disconnect(vif); 497 } 498 499 memset(vif->ssid, 0, sizeof(vif->ssid)); 500 vif->ssid_len = sme->ssid_len; 501 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 502 503 if (sme->channel) 504 vif->ch_hint = sme->channel->center_freq; 505 506 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 507 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 508 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 509 510 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 511 512 status = ath6kl_set_auth_type(vif, sme->auth_type); 513 if (status) { 514 up(&ar->sem); 515 return status; 516 } 517 518 if (sme->crypto.n_ciphers_pairwise) 519 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 520 else 521 ath6kl_set_cipher(vif, 0, true); 522 523 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 524 525 if (sme->crypto.n_akm_suites) 526 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 527 528 if ((sme->key_len) && 529 (vif->auth_mode == NONE_AUTH) && 530 (vif->prwise_crypto == WEP_CRYPT)) { 531 struct ath6kl_key *key = NULL; 532 533 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 534 ath6kl_err("key index %d out of bounds\n", 535 sme->key_idx); 536 up(&ar->sem); 537 return -ENOENT; 538 } 539 540 key = &vif->keys[sme->key_idx]; 541 key->key_len = sme->key_len; 542 memcpy(key->key, sme->key, key->key_len); 543 key->cipher = vif->prwise_crypto; 544 vif->def_txkey_index = sme->key_idx; 545 546 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 547 vif->prwise_crypto, 548 GROUP_USAGE | TX_USAGE, 549 key->key_len, 550 NULL, 0, 551 key->key, KEY_OP_INIT_VAL, NULL, 552 NO_SYNC_WMIFLAG); 553 } 554 555 if (!ar->usr_bss_filter) { 556 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 557 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 558 ALL_BSS_FILTER, 0) != 0) { 559 ath6kl_err("couldn't set bss filtering\n"); 560 up(&ar->sem); 561 return -EIO; 562 } 563 } 564 565 vif->nw_type = vif->next_mode; 566 567 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 568 nw_subtype = SUBTYPE_P2PCLIENT; 569 570 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 571 "%s: connect called with authmode %d dot11 auth %d" 572 " PW crypto %d PW crypto len %d GRP crypto %d" 573 " GRP crypto len %d channel hint %u\n", 574 __func__, 575 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 576 vif->prwise_crypto_len, vif->grp_crypto, 577 vif->grp_crypto_len, vif->ch_hint); 578 579 vif->reconnect_flag = 0; 580 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 581 vif->dot11_auth_mode, vif->auth_mode, 582 vif->prwise_crypto, 583 vif->prwise_crypto_len, 584 vif->grp_crypto, vif->grp_crypto_len, 585 vif->ssid_len, vif->ssid, 586 vif->req_bssid, vif->ch_hint, 587 ar->connect_ctrl_flags, nw_subtype); 588 589 up(&ar->sem); 590 591 if (status == -EINVAL) { 592 memset(vif->ssid, 0, sizeof(vif->ssid)); 593 vif->ssid_len = 0; 594 ath6kl_err("invalid request\n"); 595 return -ENOENT; 596 } else if (status) { 597 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 598 return -EIO; 599 } 600 601 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 602 ((vif->auth_mode == WPA_PSK_AUTH) 603 || (vif->auth_mode == WPA2_PSK_AUTH))) { 604 mod_timer(&vif->disconnect_timer, 605 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 606 } 607 608 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 609 set_bit(CONNECT_PEND, &vif->flags); 610 611 return 0; 612} 613 614static struct cfg80211_bss * 615ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 616 enum network_type nw_type, 617 const u8 *bssid, 618 struct ieee80211_channel *chan, 619 const u8 *beacon_ie, 620 size_t beacon_ie_len) 621{ 622 struct ath6kl *ar = vif->ar; 623 struct cfg80211_bss *bss; 624 u16 cap_mask, cap_val; 625 u8 *ie; 626 627 if (nw_type & ADHOC_NETWORK) { 628 cap_mask = WLAN_CAPABILITY_IBSS; 629 cap_val = WLAN_CAPABILITY_IBSS; 630 } else { 631 cap_mask = WLAN_CAPABILITY_ESS; 632 cap_val = WLAN_CAPABILITY_ESS; 633 } 634 635 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 636 vif->ssid, vif->ssid_len, 637 cap_mask, cap_val); 638 if (bss == NULL) { 639 /* 640 * Since cfg80211 may not yet know about the BSS, 641 * generate a partial entry until the first BSS info 642 * event becomes available. 643 * 644 * Prepend SSID element since it is not included in the Beacon 645 * IEs from the target. 646 */ 647 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 648 if (ie == NULL) 649 return NULL; 650 ie[0] = WLAN_EID_SSID; 651 ie[1] = vif->ssid_len; 652 memcpy(ie + 2, vif->ssid, vif->ssid_len); 653 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 654 bss = cfg80211_inform_bss(ar->wiphy, chan, 655 bssid, 0, cap_val, 100, 656 ie, 2 + vif->ssid_len + beacon_ie_len, 657 0, GFP_KERNEL); 658 if (bss) 659 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "added bss %pM to " 660 "cfg80211\n", bssid); 661 kfree(ie); 662 } else 663 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 664 665 return bss; 666} 667 668void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 669 u8 *bssid, u16 listen_intvl, 670 u16 beacon_intvl, 671 enum network_type nw_type, 672 u8 beacon_ie_len, u8 assoc_req_len, 673 u8 assoc_resp_len, u8 *assoc_info) 674{ 675 struct ieee80211_channel *chan; 676 struct ath6kl *ar = vif->ar; 677 struct cfg80211_bss *bss; 678 679 /* capinfo + listen interval */ 680 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 681 682 /* capinfo + status code + associd */ 683 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 684 685 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 686 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 687 assoc_resp_ie_offset; 688 689 assoc_req_len -= assoc_req_ie_offset; 690 assoc_resp_len -= assoc_resp_ie_offset; 691 692 /* 693 * Store Beacon interval here; DTIM period will be available only once 694 * a Beacon frame from the AP is seen. 695 */ 696 vif->assoc_bss_beacon_int = beacon_intvl; 697 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 698 699 if (nw_type & ADHOC_NETWORK) { 700 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 701 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 702 "%s: ath6k not in ibss mode\n", __func__); 703 return; 704 } 705 } 706 707 if (nw_type & INFRA_NETWORK) { 708 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 709 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 710 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 711 "%s: ath6k not in station mode\n", __func__); 712 return; 713 } 714 } 715 716 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 717 718 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 719 assoc_info, beacon_ie_len); 720 if (!bss) { 721 ath6kl_err("could not add cfg80211 bss entry\n"); 722 return; 723 } 724 725 if (nw_type & ADHOC_NETWORK) { 726 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 727 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 728 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 729 cfg80211_put_bss(bss); 730 return; 731 } 732 733 if (vif->sme_state == SME_CONNECTING) { 734 /* inform connect result to cfg80211 */ 735 vif->sme_state = SME_CONNECTED; 736 cfg80211_connect_result(vif->ndev, bssid, 737 assoc_req_ie, assoc_req_len, 738 assoc_resp_ie, assoc_resp_len, 739 WLAN_STATUS_SUCCESS, GFP_KERNEL); 740 cfg80211_put_bss(bss); 741 } else if (vif->sme_state == SME_CONNECTED) { 742 /* inform roam event to cfg80211 */ 743 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 744 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 745 } 746} 747 748static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 749 struct net_device *dev, u16 reason_code) 750{ 751 struct ath6kl *ar = ath6kl_priv(dev); 752 struct ath6kl_vif *vif = netdev_priv(dev); 753 754 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 755 reason_code); 756 757 ath6kl_cfg80211_sscan_disable(vif); 758 759 if (!ath6kl_cfg80211_ready(vif)) 760 return -EIO; 761 762 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 763 ath6kl_err("busy, destroy in progress\n"); 764 return -EBUSY; 765 } 766 767 if (down_interruptible(&ar->sem)) { 768 ath6kl_err("busy, couldn't get access\n"); 769 return -ERESTARTSYS; 770 } 771 772 vif->reconnect_flag = 0; 773 ath6kl_disconnect(vif); 774 memset(vif->ssid, 0, sizeof(vif->ssid)); 775 vif->ssid_len = 0; 776 777 if (!test_bit(SKIP_SCAN, &ar->flag)) 778 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 779 780 up(&ar->sem); 781 782 vif->sme_state = SME_DISCONNECTED; 783 784 return 0; 785} 786 787void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 788 u8 *bssid, u8 assoc_resp_len, 789 u8 *assoc_info, u16 proto_reason) 790{ 791 struct ath6kl *ar = vif->ar; 792 793 if (vif->scan_req) { 794 cfg80211_scan_done(vif->scan_req, true); 795 vif->scan_req = NULL; 796 } 797 798 if (vif->nw_type & ADHOC_NETWORK) { 799 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 800 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 801 "%s: ath6k not in ibss mode\n", __func__); 802 return; 803 } 804 memset(bssid, 0, ETH_ALEN); 805 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 806 return; 807 } 808 809 if (vif->nw_type & INFRA_NETWORK) { 810 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 811 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 812 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 813 "%s: ath6k not in station mode\n", __func__); 814 return; 815 } 816 } 817 818 /* 819 * Send a disconnect command to target when a disconnect event is 820 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 821 * request from host) to make the firmware stop trying to connect even 822 * after giving disconnect event. There will be one more disconnect 823 * event for this disconnect command with reason code DISCONNECT_CMD 824 * which will be notified to cfg80211. 825 */ 826 827 if (reason != DISCONNECT_CMD) { 828 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 829 return; 830 } 831 832 clear_bit(CONNECT_PEND, &vif->flags); 833 834 if (vif->sme_state == SME_CONNECTING) { 835 cfg80211_connect_result(vif->ndev, 836 bssid, NULL, 0, 837 NULL, 0, 838 WLAN_STATUS_UNSPECIFIED_FAILURE, 839 GFP_KERNEL); 840 } else if (vif->sme_state == SME_CONNECTED) { 841 cfg80211_disconnected(vif->ndev, reason, 842 NULL, 0, GFP_KERNEL); 843 } 844 845 vif->sme_state = SME_DISCONNECTED; 846} 847 848static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, 849 struct cfg80211_scan_request *request) 850{ 851 struct ath6kl *ar = ath6kl_priv(ndev); 852 struct ath6kl_vif *vif = netdev_priv(ndev); 853 s8 n_channels = 0; 854 u16 *channels = NULL; 855 int ret = 0; 856 u32 force_fg_scan = 0; 857 858 if (!ath6kl_cfg80211_ready(vif)) 859 return -EIO; 860 861 ath6kl_cfg80211_sscan_disable(vif); 862 863 if (!ar->usr_bss_filter) { 864 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 865 ret = ath6kl_wmi_bssfilter_cmd( 866 ar->wmi, vif->fw_vif_idx, 867 (test_bit(CONNECTED, &vif->flags) ? 868 ALL_BUT_BSS_FILTER : ALL_BSS_FILTER), 0); 869 if (ret) { 870 ath6kl_err("couldn't set bss filtering\n"); 871 return ret; 872 } 873 } 874 875 if (request->n_ssids && request->ssids[0].ssid_len) { 876 u8 i; 877 878 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1)) 879 request->n_ssids = MAX_PROBED_SSID_INDEX - 1; 880 881 for (i = 0; i < request->n_ssids; i++) 882 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 883 i + 1, SPECIFIC_SSID_FLAG, 884 request->ssids[i].ssid_len, 885 request->ssids[i].ssid); 886 } 887 888 /* this also clears IE in fw if it's not set */ 889 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 890 WMI_FRAME_PROBE_REQ, 891 request->ie, request->ie_len); 892 if (ret) { 893 ath6kl_err("failed to set Probe Request appie for " 894 "scan"); 895 return ret; 896 } 897 898 /* 899 * Scan only the requested channels if the request specifies a set of 900 * channels. If the list is longer than the target supports, do not 901 * configure the list and instead, scan all available channels. 902 */ 903 if (request->n_channels > 0 && 904 request->n_channels <= WMI_MAX_CHANNELS) { 905 u8 i; 906 907 n_channels = request->n_channels; 908 909 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 910 if (channels == NULL) { 911 ath6kl_warn("failed to set scan channels, " 912 "scan all channels"); 913 n_channels = 0; 914 } 915 916 for (i = 0; i < n_channels; i++) 917 channels[i] = request->channels[i]->center_freq; 918 } 919 920 if (test_bit(CONNECTED, &vif->flags)) 921 force_fg_scan = 1; 922 923 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 924 ar->fw_capabilities)) { 925 /* 926 * If capable of doing P2P mgmt operations using 927 * station interface, send additional information like 928 * supported rates to advertise and xmit rates for 929 * probe requests 930 */ 931 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 932 WMI_LONG_SCAN, force_fg_scan, 933 false, 0, 934 ATH6KL_FG_SCAN_INTERVAL, 935 n_channels, channels, 936 request->no_cck, 937 request->rates); 938 } else { 939 ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx, 940 WMI_LONG_SCAN, force_fg_scan, 941 false, 0, 942 ATH6KL_FG_SCAN_INTERVAL, 943 n_channels, channels); 944 } 945 if (ret) 946 ath6kl_err("wmi_startscan_cmd failed\n"); 947 else 948 vif->scan_req = request; 949 950 kfree(channels); 951 952 return ret; 953} 954 955void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 956{ 957 struct ath6kl *ar = vif->ar; 958 int i; 959 960 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 961 aborted ? " aborted" : ""); 962 963 if (!vif->scan_req) 964 return; 965 966 if (aborted) 967 goto out; 968 969 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 970 for (i = 0; i < vif->scan_req->n_ssids; i++) { 971 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 972 i + 1, DISABLE_SSID_FLAG, 973 0, NULL); 974 } 975 } 976 977out: 978 cfg80211_scan_done(vif->scan_req, aborted); 979 vif->scan_req = NULL; 980} 981 982static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 983 u8 key_index, bool pairwise, 984 const u8 *mac_addr, 985 struct key_params *params) 986{ 987 struct ath6kl *ar = ath6kl_priv(ndev); 988 struct ath6kl_vif *vif = netdev_priv(ndev); 989 struct ath6kl_key *key = NULL; 990 int seq_len; 991 u8 key_usage; 992 u8 key_type; 993 994 if (!ath6kl_cfg80211_ready(vif)) 995 return -EIO; 996 997 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 998 if (params->key_len != WMI_KRK_LEN) 999 return -EINVAL; 1000 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1001 params->key); 1002 } 1003 1004 if (key_index > WMI_MAX_KEY_INDEX) { 1005 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1006 "%s: key index %d out of bounds\n", __func__, 1007 key_index); 1008 return -ENOENT; 1009 } 1010 1011 key = &vif->keys[key_index]; 1012 memset(key, 0, sizeof(struct ath6kl_key)); 1013 1014 if (pairwise) 1015 key_usage = PAIRWISE_USAGE; 1016 else 1017 key_usage = GROUP_USAGE; 1018 1019 seq_len = params->seq_len; 1020 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1021 seq_len > ATH6KL_KEY_SEQ_LEN) { 1022 /* Only first half of the WPI PN is configured */ 1023 seq_len = ATH6KL_KEY_SEQ_LEN; 1024 } 1025 if (params->key_len > WLAN_MAX_KEY_LEN || 1026 seq_len > sizeof(key->seq)) 1027 return -EINVAL; 1028 1029 key->key_len = params->key_len; 1030 memcpy(key->key, params->key, key->key_len); 1031 key->seq_len = seq_len; 1032 memcpy(key->seq, params->seq, key->seq_len); 1033 key->cipher = params->cipher; 1034 1035 switch (key->cipher) { 1036 case WLAN_CIPHER_SUITE_WEP40: 1037 case WLAN_CIPHER_SUITE_WEP104: 1038 key_type = WEP_CRYPT; 1039 break; 1040 1041 case WLAN_CIPHER_SUITE_TKIP: 1042 key_type = TKIP_CRYPT; 1043 break; 1044 1045 case WLAN_CIPHER_SUITE_CCMP: 1046 key_type = AES_CRYPT; 1047 break; 1048 case WLAN_CIPHER_SUITE_SMS4: 1049 key_type = WAPI_CRYPT; 1050 break; 1051 1052 default: 1053 return -ENOTSUPP; 1054 } 1055 1056 if (((vif->auth_mode == WPA_PSK_AUTH) 1057 || (vif->auth_mode == WPA2_PSK_AUTH)) 1058 && (key_usage & GROUP_USAGE)) 1059 del_timer(&vif->disconnect_timer); 1060 1061 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1062 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1063 __func__, key_index, key->key_len, key_type, 1064 key_usage, key->seq_len); 1065 1066 if (vif->nw_type == AP_NETWORK && !pairwise && 1067 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1068 key_type == WAPI_CRYPT)) { 1069 ar->ap_mode_bkey.valid = true; 1070 ar->ap_mode_bkey.key_index = key_index; 1071 ar->ap_mode_bkey.key_type = key_type; 1072 ar->ap_mode_bkey.key_len = key->key_len; 1073 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1074 if (!test_bit(CONNECTED, &vif->flags)) { 1075 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group " 1076 "key configuration until AP mode has been " 1077 "started\n"); 1078 /* 1079 * The key will be set in ath6kl_connect_ap_mode() once 1080 * the connected event is received from the target. 1081 */ 1082 return 0; 1083 } 1084 } 1085 1086 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1087 !test_bit(CONNECTED, &vif->flags)) { 1088 /* 1089 * Store the key locally so that it can be re-configured after 1090 * the AP mode has properly started 1091 * (ath6kl_install_statioc_wep_keys). 1092 */ 1093 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay WEP key configuration " 1094 "until AP mode has been started\n"); 1095 vif->wep_key_list[key_index].key_len = key->key_len; 1096 memcpy(vif->wep_key_list[key_index].key, key->key, 1097 key->key_len); 1098 return 0; 1099 } 1100 1101 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1102 key_type, key_usage, key->key_len, 1103 key->seq, key->seq_len, key->key, 1104 KEY_OP_INIT_VAL, 1105 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1106} 1107 1108static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1109 u8 key_index, bool pairwise, 1110 const u8 *mac_addr) 1111{ 1112 struct ath6kl *ar = ath6kl_priv(ndev); 1113 struct ath6kl_vif *vif = netdev_priv(ndev); 1114 1115 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1116 1117 if (!ath6kl_cfg80211_ready(vif)) 1118 return -EIO; 1119 1120 if (key_index > WMI_MAX_KEY_INDEX) { 1121 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1122 "%s: key index %d out of bounds\n", __func__, 1123 key_index); 1124 return -ENOENT; 1125 } 1126 1127 if (!vif->keys[key_index].key_len) { 1128 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1129 "%s: index %d is empty\n", __func__, key_index); 1130 return 0; 1131 } 1132 1133 vif->keys[key_index].key_len = 0; 1134 1135 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1136} 1137 1138static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1139 u8 key_index, bool pairwise, 1140 const u8 *mac_addr, void *cookie, 1141 void (*callback) (void *cookie, 1142 struct key_params *)) 1143{ 1144 struct ath6kl_vif *vif = netdev_priv(ndev); 1145 struct ath6kl_key *key = NULL; 1146 struct key_params params; 1147 1148 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1149 1150 if (!ath6kl_cfg80211_ready(vif)) 1151 return -EIO; 1152 1153 if (key_index > WMI_MAX_KEY_INDEX) { 1154 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1155 "%s: key index %d out of bounds\n", __func__, 1156 key_index); 1157 return -ENOENT; 1158 } 1159 1160 key = &vif->keys[key_index]; 1161 memset(¶ms, 0, sizeof(params)); 1162 params.cipher = key->cipher; 1163 params.key_len = key->key_len; 1164 params.seq_len = key->seq_len; 1165 params.seq = key->seq; 1166 params.key = key->key; 1167 1168 callback(cookie, ¶ms); 1169 1170 return key->key_len ? 0 : -ENOENT; 1171} 1172 1173static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1174 struct net_device *ndev, 1175 u8 key_index, bool unicast, 1176 bool multicast) 1177{ 1178 struct ath6kl *ar = ath6kl_priv(ndev); 1179 struct ath6kl_vif *vif = netdev_priv(ndev); 1180 struct ath6kl_key *key = NULL; 1181 u8 key_usage; 1182 enum crypto_type key_type = NONE_CRYPT; 1183 1184 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1185 1186 if (!ath6kl_cfg80211_ready(vif)) 1187 return -EIO; 1188 1189 if (key_index > WMI_MAX_KEY_INDEX) { 1190 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1191 "%s: key index %d out of bounds\n", 1192 __func__, key_index); 1193 return -ENOENT; 1194 } 1195 1196 if (!vif->keys[key_index].key_len) { 1197 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1198 __func__, key_index); 1199 return -EINVAL; 1200 } 1201 1202 vif->def_txkey_index = key_index; 1203 key = &vif->keys[vif->def_txkey_index]; 1204 key_usage = GROUP_USAGE; 1205 if (vif->prwise_crypto == WEP_CRYPT) 1206 key_usage |= TX_USAGE; 1207 if (unicast) 1208 key_type = vif->prwise_crypto; 1209 if (multicast) 1210 key_type = vif->grp_crypto; 1211 1212 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1213 return 0; /* Delay until AP mode has been started */ 1214 1215 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1216 vif->def_txkey_index, 1217 key_type, key_usage, 1218 key->key_len, key->seq, key->seq_len, 1219 key->key, 1220 KEY_OP_INIT_VAL, NULL, 1221 SYNC_BOTH_WMIFLAG); 1222} 1223 1224void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1225 bool ismcast) 1226{ 1227 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1228 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1229 1230 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1231 (ismcast ? NL80211_KEYTYPE_GROUP : 1232 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1233 GFP_KERNEL); 1234} 1235 1236static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1237{ 1238 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1239 struct ath6kl_vif *vif; 1240 int ret; 1241 1242 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1243 changed); 1244 1245 vif = ath6kl_vif_first(ar); 1246 if (!vif) 1247 return -EIO; 1248 1249 if (!ath6kl_cfg80211_ready(vif)) 1250 return -EIO; 1251 1252 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1253 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1254 if (ret != 0) { 1255 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1256 return -EIO; 1257 } 1258 } 1259 1260 return 0; 1261} 1262 1263/* 1264 * The type nl80211_tx_power_setting replaces the following 1265 * data type from 2.6.36 onwards 1266*/ 1267static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1268 enum nl80211_tx_power_setting type, 1269 int mbm) 1270{ 1271 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1272 struct ath6kl_vif *vif; 1273 u8 ath6kl_dbm; 1274 int dbm = MBM_TO_DBM(mbm); 1275 1276 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1277 type, dbm); 1278 1279 vif = ath6kl_vif_first(ar); 1280 if (!vif) 1281 return -EIO; 1282 1283 if (!ath6kl_cfg80211_ready(vif)) 1284 return -EIO; 1285 1286 switch (type) { 1287 case NL80211_TX_POWER_AUTOMATIC: 1288 return 0; 1289 case NL80211_TX_POWER_LIMITED: 1290 ar->tx_pwr = ath6kl_dbm = dbm; 1291 break; 1292 default: 1293 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1294 __func__, type); 1295 return -EOPNOTSUPP; 1296 } 1297 1298 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, ath6kl_dbm); 1299 1300 return 0; 1301} 1302 1303static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) 1304{ 1305 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1306 struct ath6kl_vif *vif; 1307 1308 vif = ath6kl_vif_first(ar); 1309 if (!vif) 1310 return -EIO; 1311 1312 if (!ath6kl_cfg80211_ready(vif)) 1313 return -EIO; 1314 1315 if (test_bit(CONNECTED, &vif->flags)) { 1316 ar->tx_pwr = 0; 1317 1318 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1319 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1320 return -EIO; 1321 } 1322 1323 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1324 5 * HZ); 1325 1326 if (signal_pending(current)) { 1327 ath6kl_err("target did not respond\n"); 1328 return -EINTR; 1329 } 1330 } 1331 1332 *dbm = ar->tx_pwr; 1333 return 0; 1334} 1335 1336static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1337 struct net_device *dev, 1338 bool pmgmt, int timeout) 1339{ 1340 struct ath6kl *ar = ath6kl_priv(dev); 1341 struct wmi_power_mode_cmd mode; 1342 struct ath6kl_vif *vif = netdev_priv(dev); 1343 1344 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1345 __func__, pmgmt, timeout); 1346 1347 if (!ath6kl_cfg80211_ready(vif)) 1348 return -EIO; 1349 1350 if (pmgmt) { 1351 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1352 mode.pwr_mode = REC_POWER; 1353 } else { 1354 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1355 mode.pwr_mode = MAX_PERF_POWER; 1356 } 1357 1358 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1359 mode.pwr_mode) != 0) { 1360 ath6kl_err("wmi_powermode_cmd failed\n"); 1361 return -EIO; 1362 } 1363 1364 return 0; 1365} 1366 1367static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1368 char *name, 1369 enum nl80211_iftype type, 1370 u32 *flags, 1371 struct vif_params *params) 1372{ 1373 struct ath6kl *ar = wiphy_priv(wiphy); 1374 struct net_device *ndev; 1375 u8 if_idx, nw_type; 1376 1377 if (ar->num_vif == ar->vif_max) { 1378 ath6kl_err("Reached maximum number of supported vif\n"); 1379 return ERR_PTR(-EINVAL); 1380 } 1381 1382 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1383 ath6kl_err("Not a supported interface type\n"); 1384 return ERR_PTR(-EINVAL); 1385 } 1386 1387 ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1388 if (!ndev) 1389 return ERR_PTR(-ENOMEM); 1390 1391 ar->num_vif++; 1392 1393 return ndev; 1394} 1395 1396static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1397 struct net_device *ndev) 1398{ 1399 struct ath6kl *ar = wiphy_priv(wiphy); 1400 struct ath6kl_vif *vif = netdev_priv(ndev); 1401 1402 spin_lock_bh(&ar->list_lock); 1403 list_del(&vif->list); 1404 spin_unlock_bh(&ar->list_lock); 1405 1406 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); 1407 1408 ath6kl_cfg80211_vif_cleanup(vif); 1409 1410 return 0; 1411} 1412 1413static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1414 struct net_device *ndev, 1415 enum nl80211_iftype type, u32 *flags, 1416 struct vif_params *params) 1417{ 1418 struct ath6kl_vif *vif = netdev_priv(ndev); 1419 1420 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1421 1422 switch (type) { 1423 case NL80211_IFTYPE_STATION: 1424 vif->next_mode = INFRA_NETWORK; 1425 break; 1426 case NL80211_IFTYPE_ADHOC: 1427 vif->next_mode = ADHOC_NETWORK; 1428 break; 1429 case NL80211_IFTYPE_AP: 1430 vif->next_mode = AP_NETWORK; 1431 break; 1432 case NL80211_IFTYPE_P2P_CLIENT: 1433 vif->next_mode = INFRA_NETWORK; 1434 break; 1435 case NL80211_IFTYPE_P2P_GO: 1436 vif->next_mode = AP_NETWORK; 1437 break; 1438 default: 1439 ath6kl_err("invalid interface type %u\n", type); 1440 return -EOPNOTSUPP; 1441 } 1442 1443 vif->wdev.iftype = type; 1444 1445 return 0; 1446} 1447 1448static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1449 struct net_device *dev, 1450 struct cfg80211_ibss_params *ibss_param) 1451{ 1452 struct ath6kl *ar = ath6kl_priv(dev); 1453 struct ath6kl_vif *vif = netdev_priv(dev); 1454 int status; 1455 1456 if (!ath6kl_cfg80211_ready(vif)) 1457 return -EIO; 1458 1459 vif->ssid_len = ibss_param->ssid_len; 1460 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1461 1462 if (ibss_param->channel) 1463 vif->ch_hint = ibss_param->channel->center_freq; 1464 1465 if (ibss_param->channel_fixed) { 1466 /* 1467 * TODO: channel_fixed: The channel should be fixed, do not 1468 * search for IBSSs to join on other channels. Target 1469 * firmware does not support this feature, needs to be 1470 * updated. 1471 */ 1472 return -EOPNOTSUPP; 1473 } 1474 1475 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1476 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1477 memcpy(vif->req_bssid, ibss_param->bssid, 1478 sizeof(vif->req_bssid)); 1479 1480 ath6kl_set_wpa_version(vif, 0); 1481 1482 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1483 if (status) 1484 return status; 1485 1486 if (ibss_param->privacy) { 1487 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1488 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1489 } else { 1490 ath6kl_set_cipher(vif, 0, true); 1491 ath6kl_set_cipher(vif, 0, false); 1492 } 1493 1494 vif->nw_type = vif->next_mode; 1495 1496 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1497 "%s: connect called with authmode %d dot11 auth %d" 1498 " PW crypto %d PW crypto len %d GRP crypto %d" 1499 " GRP crypto len %d channel hint %u\n", 1500 __func__, 1501 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1502 vif->prwise_crypto_len, vif->grp_crypto, 1503 vif->grp_crypto_len, vif->ch_hint); 1504 1505 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1506 vif->dot11_auth_mode, vif->auth_mode, 1507 vif->prwise_crypto, 1508 vif->prwise_crypto_len, 1509 vif->grp_crypto, vif->grp_crypto_len, 1510 vif->ssid_len, vif->ssid, 1511 vif->req_bssid, vif->ch_hint, 1512 ar->connect_ctrl_flags, SUBTYPE_NONE); 1513 set_bit(CONNECT_PEND, &vif->flags); 1514 1515 return 0; 1516} 1517 1518static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1519 struct net_device *dev) 1520{ 1521 struct ath6kl_vif *vif = netdev_priv(dev); 1522 1523 if (!ath6kl_cfg80211_ready(vif)) 1524 return -EIO; 1525 1526 ath6kl_disconnect(vif); 1527 memset(vif->ssid, 0, sizeof(vif->ssid)); 1528 vif->ssid_len = 0; 1529 1530 return 0; 1531} 1532 1533static const u32 cipher_suites[] = { 1534 WLAN_CIPHER_SUITE_WEP40, 1535 WLAN_CIPHER_SUITE_WEP104, 1536 WLAN_CIPHER_SUITE_TKIP, 1537 WLAN_CIPHER_SUITE_CCMP, 1538 CCKM_KRK_CIPHER_SUITE, 1539 WLAN_CIPHER_SUITE_SMS4, 1540}; 1541 1542static bool is_rate_legacy(s32 rate) 1543{ 1544 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1545 6000, 9000, 12000, 18000, 24000, 1546 36000, 48000, 54000 1547 }; 1548 u8 i; 1549 1550 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1551 if (rate == legacy[i]) 1552 return true; 1553 1554 return false; 1555} 1556 1557static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1558{ 1559 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1560 52000, 58500, 65000, 72200 1561 }; 1562 u8 i; 1563 1564 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1565 if (rate == ht20[i]) { 1566 if (i == ARRAY_SIZE(ht20) - 1) 1567 /* last rate uses sgi */ 1568 *sgi = true; 1569 else 1570 *sgi = false; 1571 1572 *mcs = i; 1573 return true; 1574 } 1575 } 1576 return false; 1577} 1578 1579static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1580{ 1581 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1582 81000, 108000, 121500, 135000, 1583 150000 1584 }; 1585 u8 i; 1586 1587 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1588 if (rate == ht40[i]) { 1589 if (i == ARRAY_SIZE(ht40) - 1) 1590 /* last rate uses sgi */ 1591 *sgi = true; 1592 else 1593 *sgi = false; 1594 1595 *mcs = i; 1596 return true; 1597 } 1598 } 1599 1600 return false; 1601} 1602 1603static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1604 u8 *mac, struct station_info *sinfo) 1605{ 1606 struct ath6kl *ar = ath6kl_priv(dev); 1607 struct ath6kl_vif *vif = netdev_priv(dev); 1608 long left; 1609 bool sgi; 1610 s32 rate; 1611 int ret; 1612 u8 mcs; 1613 1614 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1615 return -ENOENT; 1616 1617 if (down_interruptible(&ar->sem)) 1618 return -EBUSY; 1619 1620 set_bit(STATS_UPDATE_PEND, &vif->flags); 1621 1622 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1623 1624 if (ret != 0) { 1625 up(&ar->sem); 1626 return -EIO; 1627 } 1628 1629 left = wait_event_interruptible_timeout(ar->event_wq, 1630 !test_bit(STATS_UPDATE_PEND, 1631 &vif->flags), 1632 WMI_TIMEOUT); 1633 1634 up(&ar->sem); 1635 1636 if (left == 0) 1637 return -ETIMEDOUT; 1638 else if (left < 0) 1639 return left; 1640 1641 if (vif->target_stats.rx_byte) { 1642 sinfo->rx_bytes = vif->target_stats.rx_byte; 1643 sinfo->filled |= STATION_INFO_RX_BYTES; 1644 sinfo->rx_packets = vif->target_stats.rx_pkt; 1645 sinfo->filled |= STATION_INFO_RX_PACKETS; 1646 } 1647 1648 if (vif->target_stats.tx_byte) { 1649 sinfo->tx_bytes = vif->target_stats.tx_byte; 1650 sinfo->filled |= STATION_INFO_TX_BYTES; 1651 sinfo->tx_packets = vif->target_stats.tx_pkt; 1652 sinfo->filled |= STATION_INFO_TX_PACKETS; 1653 } 1654 1655 sinfo->signal = vif->target_stats.cs_rssi; 1656 sinfo->filled |= STATION_INFO_SIGNAL; 1657 1658 rate = vif->target_stats.tx_ucast_rate; 1659 1660 if (is_rate_legacy(rate)) { 1661 sinfo->txrate.legacy = rate / 100; 1662 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1663 if (sgi) { 1664 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1665 sinfo->txrate.mcs = mcs - 1; 1666 } else { 1667 sinfo->txrate.mcs = mcs; 1668 } 1669 1670 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1671 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1672 if (sgi) { 1673 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1674 sinfo->txrate.mcs = mcs - 1; 1675 } else { 1676 sinfo->txrate.mcs = mcs; 1677 } 1678 1679 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1680 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1681 } else { 1682 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1683 "invalid rate from stats: %d\n", rate); 1684 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1685 return 0; 1686 } 1687 1688 sinfo->filled |= STATION_INFO_TX_BITRATE; 1689 1690 if (test_bit(CONNECTED, &vif->flags) && 1691 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1692 vif->nw_type == INFRA_NETWORK) { 1693 sinfo->filled |= STATION_INFO_BSS_PARAM; 1694 sinfo->bss_param.flags = 0; 1695 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1696 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1697 } 1698 1699 return 0; 1700} 1701 1702static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1703 struct cfg80211_pmksa *pmksa) 1704{ 1705 struct ath6kl *ar = ath6kl_priv(netdev); 1706 struct ath6kl_vif *vif = netdev_priv(netdev); 1707 1708 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1709 pmksa->pmkid, true); 1710} 1711 1712static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1713 struct cfg80211_pmksa *pmksa) 1714{ 1715 struct ath6kl *ar = ath6kl_priv(netdev); 1716 struct ath6kl_vif *vif = netdev_priv(netdev); 1717 1718 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1719 pmksa->pmkid, false); 1720} 1721 1722static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1723{ 1724 struct ath6kl *ar = ath6kl_priv(netdev); 1725 struct ath6kl_vif *vif = netdev_priv(netdev); 1726 1727 if (test_bit(CONNECTED, &vif->flags)) 1728 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1729 vif->bssid, NULL, false); 1730 return 0; 1731} 1732 1733static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1734 struct cfg80211_wowlan *wow, u32 *filter) 1735{ 1736 int ret, pos; 1737 u8 mask[WOW_MASK_SIZE]; 1738 u16 i; 1739 1740 /* Configure the patterns that we received from the user. */ 1741 for (i = 0; i < wow->n_patterns; i++) { 1742 1743 /* 1744 * Convert given nl80211 specific mask value to equivalent 1745 * driver specific mask value and send it to the chip along 1746 * with patterns. For example, If the mask value defined in 1747 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1748 * then equivalent driver specific mask value is 1749 * "0xFF 0x00 0xFF 0x00". 1750 */ 1751 memset(&mask, 0, sizeof(mask)); 1752 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1753 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1754 mask[pos] = 0xFF; 1755 } 1756 /* 1757 * Note: Pattern's offset is not passed as part of wowlan 1758 * parameter from CFG layer. So it's always passed as ZERO 1759 * to the firmware. It means, given WOW patterns are always 1760 * matched from the first byte of received pkt in the firmware. 1761 */ 1762 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1763 vif->fw_vif_idx, WOW_LIST_ID, 1764 wow->patterns[i].pattern_len, 1765 0 /* pattern offset */, 1766 wow->patterns[i].pattern, mask); 1767 if (ret) 1768 return ret; 1769 } 1770 1771 if (wow->disconnect) 1772 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1773 1774 if (wow->magic_pkt) 1775 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1776 1777 if (wow->gtk_rekey_failure) 1778 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1779 1780 if (wow->eap_identity_req) 1781 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1782 1783 if (wow->four_way_handshake) 1784 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1785 1786 return 0; 1787} 1788 1789static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1790{ 1791 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1792 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1793 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1794 0x00, 0x08 }; 1795 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1796 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1797 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1798 0x00, 0x7f }; 1799 u8 unicst_offset = 0; 1800 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1801 static const u8 arp_mask[] = { 0xff, 0xff }; 1802 u8 arp_offset = 20; 1803 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1804 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1805 u8 discvr_offset = 38; 1806 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1807 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1808 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1809 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1810 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1811 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1812 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1813 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1814 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1815 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1816 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1817 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1818 u8 dhcp_offset = 0; 1819 int ret; 1820 1821 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1822 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1823 vif->fw_vif_idx, WOW_LIST_ID, 1824 sizeof(unicst_pattern), unicst_offset, 1825 unicst_pattern, unicst_mask); 1826 if (ret) { 1827 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1828 return ret; 1829 } 1830 1831 /* Setup all ARP pkt pattern */ 1832 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1833 vif->fw_vif_idx, WOW_LIST_ID, 1834 sizeof(arp_pattern), arp_offset, 1835 arp_pattern, arp_mask); 1836 if (ret) { 1837 ath6kl_err("failed to add WOW ARP pattern\n"); 1838 return ret; 1839 } 1840 1841 /* 1842 * Setup multicast pattern for mDNS 224.0.0.251, 1843 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 1844 */ 1845 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1846 vif->fw_vif_idx, WOW_LIST_ID, 1847 sizeof(discvr_pattern), discvr_offset, 1848 discvr_pattern, discvr_mask); 1849 if (ret) { 1850 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 1851 return ret; 1852 } 1853 1854 /* Setup all DHCP broadcast pkt pattern */ 1855 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1856 vif->fw_vif_idx, WOW_LIST_ID, 1857 sizeof(dhcp_pattern), dhcp_offset, 1858 dhcp_pattern, dhcp_mask); 1859 if (ret) { 1860 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 1861 return ret; 1862 } 1863 1864 return 0; 1865} 1866 1867static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 1868{ 1869 struct net_device *ndev = vif->ndev; 1870 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1871 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1872 u8 discvr_offset = 38; 1873 u8 mac_mask[ETH_ALEN]; 1874 int ret; 1875 1876 /* Setup unicast pkt pattern */ 1877 memset(mac_mask, 0xff, ETH_ALEN); 1878 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1879 vif->fw_vif_idx, WOW_LIST_ID, 1880 ETH_ALEN, 0, ndev->dev_addr, 1881 mac_mask); 1882 if (ret) { 1883 ath6kl_err("failed to add WOW unicast pattern\n"); 1884 return ret; 1885 } 1886 1887 /* 1888 * Setup multicast pattern for mDNS 224.0.0.251, 1889 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 1890 */ 1891 if ((ndev->flags & IFF_ALLMULTI) || 1892 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 1893 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1894 vif->fw_vif_idx, WOW_LIST_ID, 1895 sizeof(discvr_pattern), discvr_offset, 1896 discvr_pattern, discvr_mask); 1897 if (ret) { 1898 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR " 1899 "pattern\n"); 1900 return ret; 1901 } 1902 } 1903 1904 return 0; 1905} 1906 1907static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 1908{ 1909 struct in_device *in_dev; 1910 struct in_ifaddr *ifa; 1911 struct ath6kl_vif *vif; 1912 int ret, left; 1913 u32 filter = 0; 1914 u16 i; 1915 u8 index = 0; 1916 __be32 ips[MAX_IP_ADDRS]; 1917 1918 vif = ath6kl_vif_first(ar); 1919 if (!vif) 1920 return -EIO; 1921 1922 if (!ath6kl_cfg80211_ready(vif)) 1923 return -EIO; 1924 1925 if (!test_bit(CONNECTED, &vif->flags)) 1926 return -ENOTCONN; 1927 1928 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 1929 return -EINVAL; 1930 1931 /* Clear existing WOW patterns */ 1932 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 1933 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 1934 WOW_LIST_ID, i); 1935 1936 /* 1937 * Skip the default WOW pattern configuration 1938 * if the driver receives any WOW patterns from 1939 * the user. 1940 */ 1941 if (wow) 1942 ret = ath6kl_wow_usr(ar, vif, wow, &filter); 1943 else if (vif->nw_type == AP_NETWORK) 1944 ret = ath6kl_wow_ap(ar, vif); 1945 else 1946 ret = ath6kl_wow_sta(ar, vif); 1947 1948 if (ret) 1949 return ret; 1950 1951 /* Setup own IP addr for ARP agent. */ 1952 in_dev = __in_dev_get_rtnl(vif->ndev); 1953 if (!in_dev) 1954 goto skip_arp; 1955 1956 ifa = in_dev->ifa_list; 1957 memset(&ips, 0, sizeof(ips)); 1958 1959 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 1960 while (index < MAX_IP_ADDRS && ifa) { 1961 ips[index] = ifa->ifa_local; 1962 ifa = ifa->ifa_next; 1963 index++; 1964 } 1965 1966 if (ifa) { 1967 ath6kl_err("total IP addr count is exceeding fw limit\n"); 1968 return -EINVAL; 1969 } 1970 1971 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 1972 if (ret) { 1973 ath6kl_err("fail to setup ip for arp agent\n"); 1974 return ret; 1975 } 1976 1977skip_arp: 1978 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 1979 ATH6KL_WOW_MODE_ENABLE, 1980 filter, 1981 WOW_HOST_REQ_DELAY); 1982 if (ret) 1983 return ret; 1984 1985 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 1986 1987 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 1988 ATH6KL_HOST_MODE_ASLEEP); 1989 if (ret) 1990 return ret; 1991 1992 left = wait_event_interruptible_timeout(ar->event_wq, 1993 test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags), 1994 WMI_TIMEOUT); 1995 if (left == 0) { 1996 ath6kl_warn("timeout, didn't get host sleep cmd " 1997 "processed event\n"); 1998 ret = -ETIMEDOUT; 1999 } else if (left < 0) { 2000 ath6kl_warn("error while waiting for host sleep cmd " 2001 "processed event %d\n", left); 2002 ret = left; 2003 } 2004 2005 if (ar->tx_pending[ar->ctrl_ep]) { 2006 left = wait_event_interruptible_timeout(ar->event_wq, 2007 ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT); 2008 if (left == 0) { 2009 ath6kl_warn("clear wmi ctrl data timeout\n"); 2010 ret = -ETIMEDOUT; 2011 } else if (left < 0) { 2012 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2013 ret = left; 2014 } 2015 } 2016 2017 return ret; 2018} 2019 2020static int ath6kl_wow_resume(struct ath6kl *ar) 2021{ 2022 struct ath6kl_vif *vif; 2023 int ret; 2024 2025 vif = ath6kl_vif_first(ar); 2026 if (!vif) 2027 return -EIO; 2028 2029 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2030 ATH6KL_HOST_MODE_AWAKE); 2031 return ret; 2032} 2033 2034int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2035 enum ath6kl_cfg_suspend_mode mode, 2036 struct cfg80211_wowlan *wow) 2037{ 2038 int ret; 2039 2040 switch (mode) { 2041 case ATH6KL_CFG_SUSPEND_WOW: 2042 2043 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2044 2045 /* Flush all non control pkts in TX path */ 2046 ath6kl_tx_data_cleanup(ar); 2047 2048 ret = ath6kl_wow_suspend(ar, wow); 2049 if (ret) { 2050 ath6kl_err("wow suspend failed: %d\n", ret); 2051 return ret; 2052 } 2053 ar->state = ATH6KL_STATE_WOW; 2054 break; 2055 2056 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2057 2058 ath6kl_cfg80211_stop_all(ar); 2059 2060 /* save the current power mode before enabling power save */ 2061 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2062 2063 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2064 if (ret) { 2065 ath6kl_warn("wmi powermode command failed during suspend: %d\n", 2066 ret); 2067 } 2068 2069 ar->state = ATH6KL_STATE_DEEPSLEEP; 2070 2071 break; 2072 2073 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2074 2075 ath6kl_cfg80211_stop_all(ar); 2076 2077 if (ar->state == ATH6KL_STATE_OFF) { 2078 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2079 "suspend hw off, no action for cutpower\n"); 2080 break; 2081 } 2082 2083 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2084 2085 ret = ath6kl_init_hw_stop(ar); 2086 if (ret) { 2087 ath6kl_warn("failed to stop hw during suspend: %d\n", 2088 ret); 2089 } 2090 2091 ar->state = ATH6KL_STATE_CUTPOWER; 2092 2093 break; 2094 2095 case ATH6KL_CFG_SUSPEND_SCHED_SCAN: 2096 /* 2097 * Nothing needed for schedule scan, firmware is already in 2098 * wow mode and sleeping most of the time. 2099 */ 2100 break; 2101 2102 default: 2103 break; 2104 } 2105 2106 return 0; 2107} 2108EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2109 2110int ath6kl_cfg80211_resume(struct ath6kl *ar) 2111{ 2112 int ret; 2113 2114 switch (ar->state) { 2115 case ATH6KL_STATE_WOW: 2116 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2117 2118 ret = ath6kl_wow_resume(ar); 2119 if (ret) { 2120 ath6kl_warn("wow mode resume failed: %d\n", ret); 2121 return ret; 2122 } 2123 2124 ar->state = ATH6KL_STATE_ON; 2125 break; 2126 2127 case ATH6KL_STATE_DEEPSLEEP: 2128 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2129 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2130 ar->wmi->saved_pwr_mode); 2131 if (ret) { 2132 ath6kl_warn("wmi powermode command failed during resume: %d\n", 2133 ret); 2134 } 2135 } 2136 2137 ar->state = ATH6KL_STATE_ON; 2138 2139 break; 2140 2141 case ATH6KL_STATE_CUTPOWER: 2142 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2143 2144 ret = ath6kl_init_hw_start(ar); 2145 if (ret) { 2146 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2147 return ret; 2148 } 2149 break; 2150 2151 case ATH6KL_STATE_SCHED_SCAN: 2152 break; 2153 2154 default: 2155 break; 2156 } 2157 2158 return 0; 2159} 2160EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2161 2162#ifdef CONFIG_PM 2163 2164/* hif layer decides what suspend mode to use */ 2165static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2166 struct cfg80211_wowlan *wow) 2167{ 2168 struct ath6kl *ar = wiphy_priv(wiphy); 2169 2170 return ath6kl_hif_suspend(ar, wow); 2171} 2172 2173static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2174{ 2175 struct ath6kl *ar = wiphy_priv(wiphy); 2176 2177 return ath6kl_hif_resume(ar); 2178} 2179 2180/* 2181 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2182 * both sdio irq wake up and keep power. The target pulls sdio data line to 2183 * wake up the host when WOW pattern matches. This causes sdio irq handler 2184 * is being called in the host side which internally hits ath6kl's RX path. 2185 * 2186 * Since sdio interrupt is not disabled, RX path executes even before 2187 * the host executes the actual resume operation from PM module. 2188 * 2189 * In the current scenario, WOW resume should happen before start processing 2190 * any data from the target. So It's required to perform WOW resume in RX path. 2191 * Ideally we should perform WOW resume only in the actual platform 2192 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2193 * 2194 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2195 */ 2196void ath6kl_check_wow_status(struct ath6kl *ar) 2197{ 2198 if (ar->state == ATH6KL_STATE_WOW) 2199 ath6kl_cfg80211_resume(ar); 2200} 2201 2202#else 2203 2204void ath6kl_check_wow_status(struct ath6kl *ar) 2205{ 2206} 2207#endif 2208 2209static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev, 2210 struct ieee80211_channel *chan, 2211 enum nl80211_channel_type channel_type) 2212{ 2213 struct ath6kl_vif *vif; 2214 2215 /* 2216 * 'dev' could be NULL if a channel change is required for the hardware 2217 * device itself, instead of a particular VIF. 2218 * 2219 * FIXME: To be handled properly when monitor mode is supported. 2220 */ 2221 if (!dev) 2222 return -EBUSY; 2223 2224 vif = netdev_priv(dev); 2225 2226 if (!ath6kl_cfg80211_ready(vif)) 2227 return -EIO; 2228 2229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n", 2230 __func__, chan->center_freq, chan->hw_value); 2231 vif->next_chan = chan->center_freq; 2232 2233 return 0; 2234} 2235 2236static bool ath6kl_is_p2p_ie(const u8 *pos) 2237{ 2238 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2239 pos[2] == 0x50 && pos[3] == 0x6f && 2240 pos[4] == 0x9a && pos[5] == 0x09; 2241} 2242 2243static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2244 const u8 *ies, size_t ies_len) 2245{ 2246 struct ath6kl *ar = vif->ar; 2247 const u8 *pos; 2248 u8 *buf = NULL; 2249 size_t len = 0; 2250 int ret; 2251 2252 /* 2253 * Filter out P2P IE(s) since they will be included depending on 2254 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2255 */ 2256 2257 if (ies && ies_len) { 2258 buf = kmalloc(ies_len, GFP_KERNEL); 2259 if (buf == NULL) 2260 return -ENOMEM; 2261 pos = ies; 2262 while (pos + 1 < ies + ies_len) { 2263 if (pos + 2 + pos[1] > ies + ies_len) 2264 break; 2265 if (!ath6kl_is_p2p_ie(pos)) { 2266 memcpy(buf + len, pos, 2 + pos[1]); 2267 len += 2 + pos[1]; 2268 } 2269 pos += 2 + pos[1]; 2270 } 2271 } 2272 2273 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2274 WMI_FRAME_PROBE_RESP, buf, len); 2275 kfree(buf); 2276 return ret; 2277} 2278 2279static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, 2280 struct beacon_parameters *info, bool add) 2281{ 2282 struct ath6kl *ar = ath6kl_priv(dev); 2283 struct ath6kl_vif *vif = netdev_priv(dev); 2284 struct ieee80211_mgmt *mgmt; 2285 u8 *ies; 2286 int ies_len; 2287 struct wmi_connect_cmd p; 2288 int res; 2289 int i, ret; 2290 2291 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add); 2292 2293 if (!ath6kl_cfg80211_ready(vif)) 2294 return -EIO; 2295 2296 if (vif->next_mode != AP_NETWORK) 2297 return -EOPNOTSUPP; 2298 2299 /* this also clears IE in fw if it's not set */ 2300 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2301 WMI_FRAME_BEACON, 2302 info->beacon_ies, 2303 info->beacon_ies_len); 2304 if (res) 2305 return res; 2306 2307 /* this also clears IE in fw if it's not set */ 2308 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2309 info->proberesp_ies_len); 2310 if (res) 2311 return res; 2312 2313 /* this also clears IE in fw if it's not set */ 2314 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2315 WMI_FRAME_ASSOC_RESP, 2316 info->assocresp_ies, 2317 info->assocresp_ies_len); 2318 if (res) 2319 return res; 2320 2321 if (!add) 2322 return 0; 2323 2324 ar->ap_mode_bkey.valid = false; 2325 2326 /* TODO: 2327 * info->interval 2328 * info->dtim_period 2329 */ 2330 2331 if (info->head == NULL) 2332 return -EINVAL; 2333 mgmt = (struct ieee80211_mgmt *) info->head; 2334 ies = mgmt->u.beacon.variable; 2335 if (ies > info->head + info->head_len) 2336 return -EINVAL; 2337 ies_len = info->head + info->head_len - ies; 2338 2339 if (info->ssid == NULL) 2340 return -EINVAL; 2341 memcpy(vif->ssid, info->ssid, info->ssid_len); 2342 vif->ssid_len = info->ssid_len; 2343 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2344 return -EOPNOTSUPP; /* TODO */ 2345 2346 ret = ath6kl_set_auth_type(vif, info->auth_type); 2347 if (ret) 2348 return ret; 2349 2350 memset(&p, 0, sizeof(p)); 2351 2352 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2353 switch (info->crypto.akm_suites[i]) { 2354 case WLAN_AKM_SUITE_8021X: 2355 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2356 p.auth_mode |= WPA_AUTH; 2357 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2358 p.auth_mode |= WPA2_AUTH; 2359 break; 2360 case WLAN_AKM_SUITE_PSK: 2361 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2362 p.auth_mode |= WPA_PSK_AUTH; 2363 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2364 p.auth_mode |= WPA2_PSK_AUTH; 2365 break; 2366 } 2367 } 2368 if (p.auth_mode == 0) 2369 p.auth_mode = NONE_AUTH; 2370 vif->auth_mode = p.auth_mode; 2371 2372 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2373 switch (info->crypto.ciphers_pairwise[i]) { 2374 case WLAN_CIPHER_SUITE_WEP40: 2375 case WLAN_CIPHER_SUITE_WEP104: 2376 p.prwise_crypto_type |= WEP_CRYPT; 2377 break; 2378 case WLAN_CIPHER_SUITE_TKIP: 2379 p.prwise_crypto_type |= TKIP_CRYPT; 2380 break; 2381 case WLAN_CIPHER_SUITE_CCMP: 2382 p.prwise_crypto_type |= AES_CRYPT; 2383 break; 2384 case WLAN_CIPHER_SUITE_SMS4: 2385 p.prwise_crypto_type |= WAPI_CRYPT; 2386 break; 2387 } 2388 } 2389 if (p.prwise_crypto_type == 0) { 2390 p.prwise_crypto_type = NONE_CRYPT; 2391 ath6kl_set_cipher(vif, 0, true); 2392 } else if (info->crypto.n_ciphers_pairwise == 1) 2393 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2394 2395 switch (info->crypto.cipher_group) { 2396 case WLAN_CIPHER_SUITE_WEP40: 2397 case WLAN_CIPHER_SUITE_WEP104: 2398 p.grp_crypto_type = WEP_CRYPT; 2399 break; 2400 case WLAN_CIPHER_SUITE_TKIP: 2401 p.grp_crypto_type = TKIP_CRYPT; 2402 break; 2403 case WLAN_CIPHER_SUITE_CCMP: 2404 p.grp_crypto_type = AES_CRYPT; 2405 break; 2406 case WLAN_CIPHER_SUITE_SMS4: 2407 p.grp_crypto_type = WAPI_CRYPT; 2408 break; 2409 default: 2410 p.grp_crypto_type = NONE_CRYPT; 2411 break; 2412 } 2413 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2414 2415 p.nw_type = AP_NETWORK; 2416 vif->nw_type = vif->next_mode; 2417 2418 p.ssid_len = vif->ssid_len; 2419 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2420 p.dot11_auth_mode = vif->dot11_auth_mode; 2421 p.ch = cpu_to_le16(vif->next_chan); 2422 2423 /* Enable uAPSD support by default */ 2424 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2425 if (res < 0) 2426 return res; 2427 2428 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2429 p.nw_subtype = SUBTYPE_P2PGO; 2430 } else { 2431 /* 2432 * Due to firmware limitation, it is not possible to 2433 * do P2P mgmt operations in AP mode 2434 */ 2435 p.nw_subtype = SUBTYPE_NONE; 2436 } 2437 2438 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2439 if (res < 0) 2440 return res; 2441 2442 return 0; 2443} 2444 2445static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev, 2446 struct beacon_parameters *info) 2447{ 2448 return ath6kl_ap_beacon(wiphy, dev, info, true); 2449} 2450 2451static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev, 2452 struct beacon_parameters *info) 2453{ 2454 return ath6kl_ap_beacon(wiphy, dev, info, false); 2455} 2456 2457static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev) 2458{ 2459 struct ath6kl *ar = ath6kl_priv(dev); 2460 struct ath6kl_vif *vif = netdev_priv(dev); 2461 2462 if (vif->nw_type != AP_NETWORK) 2463 return -EOPNOTSUPP; 2464 if (!test_bit(CONNECTED, &vif->flags)) 2465 return -ENOTCONN; 2466 2467 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2468 clear_bit(CONNECTED, &vif->flags); 2469 2470 return 0; 2471} 2472 2473static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2474 2475static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2476 u8 *mac) 2477{ 2478 struct ath6kl *ar = ath6kl_priv(dev); 2479 struct ath6kl_vif *vif = netdev_priv(dev); 2480 const u8 *addr = mac ? mac : bcast_addr; 2481 2482 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2483 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2484} 2485 2486static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2487 u8 *mac, struct station_parameters *params) 2488{ 2489 struct ath6kl *ar = ath6kl_priv(dev); 2490 struct ath6kl_vif *vif = netdev_priv(dev); 2491 2492 if (vif->nw_type != AP_NETWORK) 2493 return -EOPNOTSUPP; 2494 2495 /* Use this only for authorizing/unauthorizing a station */ 2496 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 2497 return -EOPNOTSUPP; 2498 2499 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 2500 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 2501 WMI_AP_MLME_AUTHORIZE, mac, 0); 2502 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 2503 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 2504} 2505 2506static int ath6kl_remain_on_channel(struct wiphy *wiphy, 2507 struct net_device *dev, 2508 struct ieee80211_channel *chan, 2509 enum nl80211_channel_type channel_type, 2510 unsigned int duration, 2511 u64 *cookie) 2512{ 2513 struct ath6kl *ar = ath6kl_priv(dev); 2514 struct ath6kl_vif *vif = netdev_priv(dev); 2515 u32 id; 2516 2517 /* TODO: if already pending or ongoing remain-on-channel, 2518 * return -EBUSY */ 2519 id = ++vif->last_roc_id; 2520 if (id == 0) { 2521 /* Do not use 0 as the cookie value */ 2522 id = ++vif->last_roc_id; 2523 } 2524 *cookie = id; 2525 2526 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 2527 chan->center_freq, duration); 2528} 2529 2530static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 2531 struct net_device *dev, 2532 u64 cookie) 2533{ 2534 struct ath6kl *ar = ath6kl_priv(dev); 2535 struct ath6kl_vif *vif = netdev_priv(dev); 2536 2537 if (cookie != vif->last_roc_id) 2538 return -ENOENT; 2539 vif->last_cancel_roc_id = cookie; 2540 2541 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 2542} 2543 2544static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 2545 const u8 *buf, size_t len, 2546 unsigned int freq) 2547{ 2548 struct ath6kl *ar = vif->ar; 2549 const u8 *pos; 2550 u8 *p2p; 2551 int p2p_len; 2552 int ret; 2553 const struct ieee80211_mgmt *mgmt; 2554 2555 mgmt = (const struct ieee80211_mgmt *) buf; 2556 2557 /* Include P2P IE(s) from the frame generated in user space. */ 2558 2559 p2p = kmalloc(len, GFP_KERNEL); 2560 if (p2p == NULL) 2561 return -ENOMEM; 2562 p2p_len = 0; 2563 2564 pos = mgmt->u.probe_resp.variable; 2565 while (pos + 1 < buf + len) { 2566 if (pos + 2 + pos[1] > buf + len) 2567 break; 2568 if (ath6kl_is_p2p_ie(pos)) { 2569 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 2570 p2p_len += 2 + pos[1]; 2571 } 2572 pos += 2 + pos[1]; 2573 } 2574 2575 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 2576 mgmt->da, p2p, p2p_len); 2577 kfree(p2p); 2578 return ret; 2579} 2580 2581static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 2582 u32 id, 2583 u32 freq, 2584 u32 wait, 2585 const u8 *buf, 2586 size_t len, 2587 bool *more_data, 2588 bool no_cck) 2589{ 2590 struct ieee80211_mgmt *mgmt; 2591 struct ath6kl_sta *conn; 2592 bool is_psq_empty = false; 2593 struct ath6kl_mgmt_buff *mgmt_buf; 2594 size_t mgmt_buf_size; 2595 struct ath6kl *ar = vif->ar; 2596 2597 mgmt = (struct ieee80211_mgmt *) buf; 2598 if (is_multicast_ether_addr(mgmt->da)) 2599 return false; 2600 2601 conn = ath6kl_find_sta(vif, mgmt->da); 2602 if (!conn) 2603 return false; 2604 2605 if (conn->sta_flags & STA_PS_SLEEP) { 2606 if (!(conn->sta_flags & STA_PS_POLLED)) { 2607 /* Queue the frames if the STA is sleeping */ 2608 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 2609 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 2610 if (!mgmt_buf) 2611 return false; 2612 2613 INIT_LIST_HEAD(&mgmt_buf->list); 2614 mgmt_buf->id = id; 2615 mgmt_buf->freq = freq; 2616 mgmt_buf->wait = wait; 2617 mgmt_buf->len = len; 2618 mgmt_buf->no_cck = no_cck; 2619 memcpy(mgmt_buf->buf, buf, len); 2620 spin_lock_bh(&conn->psq_lock); 2621 is_psq_empty = skb_queue_empty(&conn->psq) && 2622 (conn->mgmt_psq_len == 0); 2623 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 2624 conn->mgmt_psq_len++; 2625 spin_unlock_bh(&conn->psq_lock); 2626 2627 /* 2628 * If this is the first pkt getting queued 2629 * for this STA, update the PVB for this 2630 * STA. 2631 */ 2632 if (is_psq_empty) 2633 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 2634 conn->aid, 1); 2635 return true; 2636 } 2637 2638 /* 2639 * This tx is because of a PsPoll. 2640 * Determine if MoreData bit has to be set. 2641 */ 2642 spin_lock_bh(&conn->psq_lock); 2643 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 2644 *more_data = true; 2645 spin_unlock_bh(&conn->psq_lock); 2646 } 2647 2648 return false; 2649} 2650 2651static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, 2652 struct ieee80211_channel *chan, bool offchan, 2653 enum nl80211_channel_type channel_type, 2654 bool channel_type_valid, unsigned int wait, 2655 const u8 *buf, size_t len, bool no_cck, 2656 bool dont_wait_for_ack, u64 *cookie) 2657{ 2658 struct ath6kl *ar = ath6kl_priv(dev); 2659 struct ath6kl_vif *vif = netdev_priv(dev); 2660 u32 id; 2661 const struct ieee80211_mgmt *mgmt; 2662 bool more_data, queued; 2663 2664 mgmt = (const struct ieee80211_mgmt *) buf; 2665 if (buf + len >= mgmt->u.probe_resp.variable && 2666 vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 2667 ieee80211_is_probe_resp(mgmt->frame_control)) { 2668 /* 2669 * Send Probe Response frame in AP mode using a separate WMI 2670 * command to allow the target to fill in the generic IEs. 2671 */ 2672 *cookie = 0; /* TX status not supported */ 2673 return ath6kl_send_go_probe_resp(vif, buf, len, 2674 chan->center_freq); 2675 } 2676 2677 id = vif->send_action_id++; 2678 if (id == 0) { 2679 /* 2680 * 0 is a reserved value in the WMI command and shall not be 2681 * used for the command. 2682 */ 2683 id = vif->send_action_id++; 2684 } 2685 2686 *cookie = id; 2687 2688 /* AP mode Power saving processing */ 2689 if (vif->nw_type == AP_NETWORK) { 2690 queued = ath6kl_mgmt_powersave_ap(vif, 2691 id, chan->center_freq, 2692 wait, buf, 2693 len, &more_data, no_cck); 2694 if (queued) 2695 return 0; 2696 } 2697 2698 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, 2699 chan->center_freq, wait, 2700 buf, len, no_cck); 2701} 2702 2703static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 2704 struct net_device *dev, 2705 u16 frame_type, bool reg) 2706{ 2707 struct ath6kl_vif *vif = netdev_priv(dev); 2708 2709 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 2710 __func__, frame_type, reg); 2711 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 2712 /* 2713 * Note: This notification callback is not allowed to sleep, so 2714 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 2715 * hardcode target to report Probe Request frames all the time. 2716 */ 2717 vif->probe_req_report = reg; 2718 } 2719} 2720 2721static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 2722 struct net_device *dev, 2723 struct cfg80211_sched_scan_request *request) 2724{ 2725 struct ath6kl *ar = ath6kl_priv(dev); 2726 struct ath6kl_vif *vif = netdev_priv(dev); 2727 u16 interval; 2728 int ret; 2729 u8 i; 2730 2731 if (ar->state != ATH6KL_STATE_ON) 2732 return -EIO; 2733 2734 if (vif->sme_state != SME_DISCONNECTED) 2735 return -EBUSY; 2736 2737 for (i = 0; i < ar->wiphy->max_sched_scan_ssids; i++) { 2738 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 2739 i, DISABLE_SSID_FLAG, 2740 0, NULL); 2741 } 2742 2743 /* fw uses seconds, also make sure that it's >0 */ 2744 interval = max_t(u16, 1, request->interval / 1000); 2745 2746 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2747 interval, interval, 2748 10, 0, 0, 0, 3, 0, 0, 0); 2749 2750 if (request->n_ssids && request->ssids[0].ssid_len) { 2751 for (i = 0; i < request->n_ssids; i++) { 2752 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 2753 i, SPECIFIC_SSID_FLAG, 2754 request->ssids[i].ssid_len, 2755 request->ssids[i].ssid); 2756 } 2757 } 2758 2759 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2760 ATH6KL_WOW_MODE_ENABLE, 2761 WOW_FILTER_SSID, 2762 WOW_HOST_REQ_DELAY); 2763 if (ret) { 2764 ath6kl_warn("Failed to enable wow with ssid filter: %d\n", ret); 2765 return ret; 2766 } 2767 2768 /* this also clears IE in fw if it's not set */ 2769 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2770 WMI_FRAME_PROBE_REQ, 2771 request->ie, request->ie_len); 2772 if (ret) { 2773 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d", 2774 ret); 2775 return ret; 2776 } 2777 2778 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2779 ATH6KL_HOST_MODE_ASLEEP); 2780 if (ret) { 2781 ath6kl_warn("Failed to enable host sleep mode for sched scan: %d\n", 2782 ret); 2783 return ret; 2784 } 2785 2786 ar->state = ATH6KL_STATE_SCHED_SCAN; 2787 2788 return ret; 2789} 2790 2791static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 2792 struct net_device *dev) 2793{ 2794 struct ath6kl_vif *vif = netdev_priv(dev); 2795 bool stopped; 2796 2797 stopped = __ath6kl_cfg80211_sscan_stop(vif); 2798 2799 if (!stopped) 2800 return -EIO; 2801 2802 return 0; 2803} 2804 2805static const struct ieee80211_txrx_stypes 2806ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 2807 [NL80211_IFTYPE_STATION] = { 2808 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2809 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 2810 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2811 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 2812 }, 2813 [NL80211_IFTYPE_AP] = { 2814 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2815 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 2816 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2817 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 2818 }, 2819 [NL80211_IFTYPE_P2P_CLIENT] = { 2820 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2821 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 2822 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2823 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 2824 }, 2825 [NL80211_IFTYPE_P2P_GO] = { 2826 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2827 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 2828 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 2829 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 2830 }, 2831}; 2832 2833static struct cfg80211_ops ath6kl_cfg80211_ops = { 2834 .add_virtual_intf = ath6kl_cfg80211_add_iface, 2835 .del_virtual_intf = ath6kl_cfg80211_del_iface, 2836 .change_virtual_intf = ath6kl_cfg80211_change_iface, 2837 .scan = ath6kl_cfg80211_scan, 2838 .connect = ath6kl_cfg80211_connect, 2839 .disconnect = ath6kl_cfg80211_disconnect, 2840 .add_key = ath6kl_cfg80211_add_key, 2841 .get_key = ath6kl_cfg80211_get_key, 2842 .del_key = ath6kl_cfg80211_del_key, 2843 .set_default_key = ath6kl_cfg80211_set_default_key, 2844 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 2845 .set_tx_power = ath6kl_cfg80211_set_txpower, 2846 .get_tx_power = ath6kl_cfg80211_get_txpower, 2847 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 2848 .join_ibss = ath6kl_cfg80211_join_ibss, 2849 .leave_ibss = ath6kl_cfg80211_leave_ibss, 2850 .get_station = ath6kl_get_station, 2851 .set_pmksa = ath6kl_set_pmksa, 2852 .del_pmksa = ath6kl_del_pmksa, 2853 .flush_pmksa = ath6kl_flush_pmksa, 2854 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 2855#ifdef CONFIG_PM 2856 .suspend = __ath6kl_cfg80211_suspend, 2857 .resume = __ath6kl_cfg80211_resume, 2858#endif 2859 .set_channel = ath6kl_set_channel, 2860 .add_beacon = ath6kl_add_beacon, 2861 .set_beacon = ath6kl_set_beacon, 2862 .del_beacon = ath6kl_del_beacon, 2863 .del_station = ath6kl_del_station, 2864 .change_station = ath6kl_change_station, 2865 .remain_on_channel = ath6kl_remain_on_channel, 2866 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 2867 .mgmt_tx = ath6kl_mgmt_tx, 2868 .mgmt_frame_register = ath6kl_mgmt_frame_register, 2869 .sched_scan_start = ath6kl_cfg80211_sscan_start, 2870 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 2871}; 2872 2873void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 2874{ 2875 ath6kl_cfg80211_sscan_disable(vif); 2876 2877 switch (vif->sme_state) { 2878 case SME_DISCONNECTED: 2879 break; 2880 case SME_CONNECTING: 2881 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 2882 NULL, 0, 2883 WLAN_STATUS_UNSPECIFIED_FAILURE, 2884 GFP_KERNEL); 2885 break; 2886 case SME_CONNECTED: 2887 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 2888 break; 2889 } 2890 2891 if (test_bit(CONNECTED, &vif->flags) || 2892 test_bit(CONNECT_PEND, &vif->flags)) 2893 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 2894 2895 vif->sme_state = SME_DISCONNECTED; 2896 clear_bit(CONNECTED, &vif->flags); 2897 clear_bit(CONNECT_PEND, &vif->flags); 2898 2899 /* disable scanning */ 2900 if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 2901 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 2902 ath6kl_warn("failed to disable scan during stop\n"); 2903 2904 ath6kl_cfg80211_scan_complete_event(vif, true); 2905} 2906 2907void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 2908{ 2909 struct ath6kl_vif *vif; 2910 2911 vif = ath6kl_vif_first(ar); 2912 if (!vif) { 2913 /* save the current power mode before enabling power save */ 2914 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2915 2916 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 2917 ath6kl_warn("ath6kl_deep_sleep_enable: " 2918 "wmi_powermode_cmd failed\n"); 2919 return; 2920 } 2921 2922 /* 2923 * FIXME: we should take ar->list_lock to protect changes in the 2924 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 2925 * sleeps. 2926 */ 2927 list_for_each_entry(vif, &ar->vif_list, list) 2928 ath6kl_cfg80211_stop(vif); 2929} 2930 2931static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 2932{ 2933 vif->aggr_cntxt = aggr_init(vif); 2934 if (!vif->aggr_cntxt) { 2935 ath6kl_err("failed to initialize aggr\n"); 2936 return -ENOMEM; 2937 } 2938 2939 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 2940 (unsigned long) vif->ndev); 2941 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 2942 (unsigned long) vif); 2943 2944 set_bit(WMM_ENABLED, &vif->flags); 2945 spin_lock_init(&vif->if_lock); 2946 2947 INIT_LIST_HEAD(&vif->mc_filter); 2948 2949 return 0; 2950} 2951 2952void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 2953{ 2954 struct ath6kl *ar = vif->ar; 2955 struct ath6kl_mc_filter *mc_filter, *tmp; 2956 2957 aggr_module_destroy(vif->aggr_cntxt); 2958 2959 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 2960 2961 if (vif->nw_type == ADHOC_NETWORK) 2962 ar->ibss_if_active = false; 2963 2964 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 2965 list_del(&mc_filter->list); 2966 kfree(mc_filter); 2967 } 2968 2969 unregister_netdevice(vif->ndev); 2970 2971 ar->num_vif--; 2972} 2973 2974struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, 2975 enum nl80211_iftype type, u8 fw_vif_idx, 2976 u8 nw_type) 2977{ 2978 struct net_device *ndev; 2979 struct ath6kl_vif *vif; 2980 2981 ndev = alloc_netdev(sizeof(*vif), name, ether_setup); 2982 if (!ndev) 2983 return NULL; 2984 2985 vif = netdev_priv(ndev); 2986 ndev->ieee80211_ptr = &vif->wdev; 2987 vif->wdev.wiphy = ar->wiphy; 2988 vif->ar = ar; 2989 vif->ndev = ndev; 2990 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 2991 vif->wdev.netdev = ndev; 2992 vif->wdev.iftype = type; 2993 vif->fw_vif_idx = fw_vif_idx; 2994 vif->nw_type = vif->next_mode = nw_type; 2995 2996 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 2997 if (fw_vif_idx != 0) 2998 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 2999 0x2; 3000 3001 init_netdev(ndev); 3002 3003 ath6kl_init_control_info(vif); 3004 3005 if (ath6kl_cfg80211_vif_init(vif)) 3006 goto err; 3007 3008 if (register_netdevice(ndev)) 3009 goto err; 3010 3011 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3012 vif->sme_state = SME_DISCONNECTED; 3013 set_bit(WLAN_ENABLED, &vif->flags); 3014 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3015 set_bit(NETDEV_REGISTERED, &vif->flags); 3016 3017 if (type == NL80211_IFTYPE_ADHOC) 3018 ar->ibss_if_active = true; 3019 3020 spin_lock_bh(&ar->list_lock); 3021 list_add_tail(&vif->list, &ar->vif_list); 3022 spin_unlock_bh(&ar->list_lock); 3023 3024 return ndev; 3025 3026err: 3027 aggr_module_destroy(vif->aggr_cntxt); 3028 free_netdev(ndev); 3029 return NULL; 3030} 3031 3032int ath6kl_cfg80211_init(struct ath6kl *ar) 3033{ 3034 struct wiphy *wiphy = ar->wiphy; 3035 int ret; 3036 3037 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3038 3039 wiphy->max_remain_on_channel_duration = 5000; 3040 3041 /* set device pointer for wiphy */ 3042 set_wiphy_dev(wiphy, ar->dev); 3043 3044 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3045 BIT(NL80211_IFTYPE_ADHOC) | 3046 BIT(NL80211_IFTYPE_AP); 3047 if (ar->p2p) { 3048 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3049 BIT(NL80211_IFTYPE_P2P_CLIENT); 3050 } 3051 3052 /* max num of ssids that can be probed during scanning */ 3053 wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; 3054 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3055 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3056 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3057 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3058 3059 wiphy->cipher_suites = cipher_suites; 3060 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3061 3062 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | 3063 WIPHY_WOWLAN_DISCONNECT | 3064 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3065 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3066 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3067 WIPHY_WOWLAN_4WAY_HANDSHAKE; 3068 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; 3069 wiphy->wowlan.pattern_min_len = 1; 3070 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; 3071 3072 wiphy->max_sched_scan_ssids = 10; 3073 3074 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3075 WIPHY_FLAG_HAVE_AP_SME | 3076 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3077 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3078 3079 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities)) 3080 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3081 3082 ar->wiphy->probe_resp_offload = 3083 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3084 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3085 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P | 3086 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U; 3087 3088 ret = wiphy_register(wiphy); 3089 if (ret < 0) { 3090 ath6kl_err("couldn't register wiphy device\n"); 3091 return ret; 3092 } 3093 3094 ar->wiphy_registered = true; 3095 3096 return 0; 3097} 3098 3099void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3100{ 3101 wiphy_unregister(ar->wiphy); 3102 3103 ar->wiphy_registered = false; 3104} 3105 3106struct ath6kl *ath6kl_cfg80211_create(void) 3107{ 3108 struct ath6kl *ar; 3109 struct wiphy *wiphy; 3110 3111 /* create a new wiphy for use with cfg80211 */ 3112 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3113 3114 if (!wiphy) { 3115 ath6kl_err("couldn't allocate wiphy device\n"); 3116 return NULL; 3117 } 3118 3119 ar = wiphy_priv(wiphy); 3120 ar->wiphy = wiphy; 3121 3122 return ar; 3123} 3124 3125/* Note: ar variable must not be accessed after calling this! */ 3126void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3127{ 3128 int i; 3129 3130 for (i = 0; i < AP_MAX_NUM_STA; i++) 3131 kfree(ar->sta_list[i].aggr_conn); 3132 3133 wiphy_free(ar->wiphy); 3134} 3135 3136